CN105945906A

CN105945906A - Cylindrical coordinate industrial manipulator with wrist rotation hydraulic control module

Info

Publication number: CN105945906A
Application number: CN201610308484.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-10
Filing date: 2016-05-10
Publication date: 2016-09-21

Abstract

The invention relates to a cylindrical coordinate industrial manipulator with a wrist rotation hydraulic control module. The cylindrical coordinate industrial manipulator comprises a machine body lifting device which is arranged in the Z direction in a liftable mode, an arm rotation device which is arranged at the upper end of the machine body lifting device in the W direction in a rotary mode, an arm connecting frame which is arranged at the upper end of the arm rotation device, and an arm telescopic rear support which is fixedly arranged on the left side of the arm connecting frame. By the adoption of the cylindrical coordinate industrial manipulator, control over various regulated motions of the manipulator is achieved, the path is simplified easily, the cost is reduced, the labor efficiency is improved, and the production rate is increased.

Description

Circular cylindrical coordinate industry mechanical arm with wrist revolution hydraulic control module

Technical field

The present invention relates to a kind of circular cylindrical coordinate industry mechanical arm with wrist revolution hydraulic control module.

Background technology

Mechanical hand is a kind of high-tech automated production equipment that recent decades grows up.Its feature is can be by compiling Journey completes various intended job task, has people and the respective advantage of machine concurrently, especially embody people on structure and performance Intelligence and adaptability.The ability fulfiled assignment in the accuracy of mechanical hand operation and various environment, at all fields of national economy There is vast potential for future development.

Industry mechanical arm has the advantage that many mankind are incomparable, meets the needs of the big production of socialization, and it is main Advantage is as follows:

1. people can be replaced to be engaged in danger, harmful operation.As long as carrying out appropriate design according to working environment, select suitable material And structure, mechanical hand just can under abnormal high temperature or low temperature, abnormal pressure and harmful gas, dust, lonizing radiation effect, and In the hazardous environment such as punching press, fire extinguishing competent.The work post that industrial accident is many, as punching press, die casting, heat treatment, forge, spray paint with And have in the operations such as arc welding that intense UV rays irradiates, industry mechanical arm or robot should be promoted.

2. can work long hours, not be afraid of fatigue, people can be freed from the work of heavy dullness, and can expand and Extend the function of people.People, after working several hours continuously, always feels tired or is weary of, and mechanical hand is only it is noted that safeguard, examine Repair, the most dull duplication of labour can be competent at.

3. action is accurate, therefore can stabilize and increase the quality of product, can avoid again artificial operation mistake simultaneously.

4. the mechanical hand particularly versatility of universal industrial mechanical hand, motility are good, can preferably adapt to product variety It is continually changing, to meet the needs of flexible production.

5. mechanical hand can be raised labour productivity significantly and reduce cost.

Due to mechanical hand played in industrial automation and informationization more than huge effect, countries in the world all take much count of The application of industry mechanical arm and development, the applying to cross at me of mechanical hand still belongs to the starting stage, and just show many cannot The advantage substituted, presents wide application prospect.In recent ten years, the exploitation of mechanical hand the most increasingly optimizes, Er Qiehan Having covered many fields, the category of application is the most wide.

Summary of the invention

The technical problem to be solved is to provide a kind of circular cylindrical coordinate with wrist revolution hydraulic control module Industry mechanical arm.

For solving the problems referred to above, the technical solution used in the present invention is:

A kind of circular cylindrical coordinate industry mechanical arm, including the fuselage lowering or hoisting gear arranged along Z-direction lifting, is arranged on machine along W to revolution The arm slewing equipment of body lowering or hoisting gear upper end, it is arranged on the arm link of arm slewing equipment upper end, is fixedly installed on hands Arm on the left of arm link stretch rear support, be fixedly installed on the arm in the middle part of arm link flexible in bearing, fixing set Put the arm on the right side of arm link flexible before bearing, the arm retractor device being arranged on arm link to stretching along X, It is arranged on the wrist slewing equipment of arm retractor device right-hand member along U to revolution, is arranged on the finger clamp of wrist slewing equipment right-hand member Tight device and hydraulic control system, arm retractor device be installed on arm stretch rear support, arm flexible in bearing and hands Before arm is flexible on bearing；Fuselage lowering or hoisting gear include arm fixed mount, be arranged on the adpting flange in the middle part of arm fixed mount lower end, Be separately positioned on arm fixed mount lower surface and be positioned at the location screw rod fore-stock of adpting flange side and location screw rod after-poppet, Be arranged on arm fixed mount lower surface and be positioned at adpting flange side, be installed on location screw rod fore-stock along Z-direction with location spiral shell Arm location screw rod guide pin bushing in bar after-poppet, the arm location screw rod being installed on along Z-direction in arm location screw rod guide pin bushing and It is arranged on the arm location fixed mount of wrist slewing equipment lower end；Arm stretch the lower end of rear support, arm flexible in bearing On the lower end fixing arm fixed mount respectively of lower end and the flexible front bearing of arm, arm location potentiometer is sleeved on arm location On screw rod, the right-hand member of arm location screw rod is fixing with arm location fixed mount to be connected；Arm retractor device includes that two ends are worn respectively Be contained in arm stretch rear support and arm flexible in arm in bearing stretch cylinder sleeve, stretch in cylinder sleeve along X to being arranged on arm Arm telescopic piston rod, be arranged on arm stretch cylinder sleeve right-hand member arm telescopic oil cylinder bonnet, be arranged on arm telescopic oil cylinder On bonnet right side wall and the arm corresponding with arm telescopic piston rod left end flexible after dashpot, be sleeved on arm telescopic piston Arm telescopic piston on bar, be arranged on arm stretch cylinder sleeve right-hand member cylinder body drive end bearing bracket, be arranged on cylinder body drive end bearing bracket left side wall Dashpot before upper and corresponding with arm telescopic piston rod right-hand member arm is flexible, it is arranged on that cylinder body drive end bearing bracket is flexible with arm lives Pilot bushing between stopper rod, the arm being sleeved in arm telescopic piston rod stretch outside framework oil seal, be arranged on arm telescopic bone Frame oil sealing right-hand member and the arm being connected with cylinder body drive end bearing bracket right-hand member stretch liner cap, the hands that is arranged on arm telescopic piston rod right-hand member Arm stretch connection journal stirrup, the arm retractable support set being fixedly installed on cylinder body drive end bearing bracket right-hand member male half coupling, be arranged on arm and stretch Before in contracting, bearing and arm are flexible arm on bearing stretch cylinder body fairlead, stretch cylinder body along X to being movably arranged on arm Arm in fairlead endoporus stretch cylinder shell, be fixedly installed on arm cylinder body adapter sleeve that arm stretches in cylinder shell, It is fixedly installed on the wrist oil circuit oil-feed tail-hood of arm cylinder body adapter sleeve left end, is fixedly installed on arm and stretches cylinder shell right-hand member Rotary cylinder bonnet, be arranged on the revolution location logical oil inner stopper of rotary cylinder bonnet right-hand member, be only arranged in the logical oil in revolution location Mouthful and wrist oil circuit oil-feed tail-hood between wrist oil path in oil cylinder, be arranged on arm flexible before arm on bearing stretch front support Lining, it is arranged on the arm telescopic oil cylinder that front support lining and arm retractable support put that stretches and slides and drive inner sleeve, be arranged on Telescopic oil cylinder slides and drives the telescopic slide in inner sleeve to drive overcoat and plug-in mounting to be arranged on arm flexible connection journal stirrup and revolution Arm between cylinder bonnet stretches alignment pin, and the arm outside framework oil seal that stretches is positioned on the right side of pilot bushing, and arm stretches outside framework oil seal Being positioned on the right side of cylinder body drive end bearing bracket in inner stopper, arm retractable support is set on the flexible middle bearing of arm, and arm location is fixed Frame is fixedly installed on rotary cylinder bonnet lower end；Wrist slewing equipment includes the hands that left end is arranged in the logical oil inner stopper of revolution location Wrist rotary piston bar, left end and rotary cylinder bonnet right-hand member are fixing be connected wrist rotary cylinder after fix seat, be fixedly installed on wrist and return Fix the wrist rotary cylinder of seat right-hand member after turning cylinder to fix housing and fix housing right side with wrist rotary cylinder and fix the wrist being connected Rotate right aling cap, be separately positioned on the wrist revolution guiding arc that wrist rotary cylinder is fixed between housing and wrist rotary piston bar Block and the fixing arc block of wrist revolution, it is arranged on the fixing arc block of wrist revolution and wrist that wrist rotary cylinder is fixed between housing Rotary sealing pad, wrist revolution connecting key, the setting being arranged between wrist revolution guiding arc block and wrist rotary piston bar Before wrist rotates the wrist of right aling cap right-hand member adpting flange seat, be arranged on wrist before the wrist front support of adpting flange seat right-hand member End cap and wrist intermediate supports set between adpting flange seat and wrist front support end cap, wrist rotary cylinder before being arranged on wrist Rear fixing seat, wrist rotary cylinder fix housing and wrist rotates right aling cap and is bolted and passes through wrist support alignment pin Location, fixes seat and is bolted and to pass through alignment pin fixed after the left end of the fixing arc block of wrist revolution and wrist rotary cylinder Position, the right-hand member at wrist rotary piston bar is provided with grip finger dashpot, is provided with connection hands on wrist rotary piston bar Refer to the pipeline of clamping dashpot and wrist oil path in oil cylinder, fix after wrist rotary piston bar and wrist rotary cylinder and arrange between seat There is deep groove ball bearing, rotate at wrist rotary piston bar and wrist and be provided with deep groove ball bearing between right aling cap, turn round in wrist Being provided with the locking nut for carrying on the back tight deep groove ball bearing on piston rod, wrist revolution guides arc block and drives wrist rotary piston Bar rotates and arranges, and is provided with arc and leads to oil groove on wrist revolution guiding arc block；Grip finger device includes that left end is arranged on Grip finger piston rod in wrist rotary piston bar inner stopper, it is arranged on the wrist telescopic piston of grip finger piston rod left end Set, be sleeved on grip finger piston rod finger back-moving spring, be sleeved on grip finger piston rod and be arranged on wrist before Grip finger outside framework oil seal in supports end cap, it is arranged on the clamping support plate of wrist front support end cap right-hand member, is arranged on finger clamp Tight piston rod right-hand member and the grip finger push pedal slided on clamping support plate, two be symmetrical arranged and left end is respectively hinged at finger Rear finger in clamping push pedal, by the hinging pin shaft front finger hinged with accordingly the most afterwards finger right-hand member, be arranged on corresponding remote holder With the fulcrum straight pin between clamping support plate right-hand member and being arranged on corresponding front finger right-hand member and for grip block in the middle part of finger The finger fingertip of material；Finger back-moving spring is arranged on wrist telescopic piston and overlaps and before wrist between adpting flange seat, and arm turns round Device includes that the arm that upper end and adpting flange are bolted turns round upper flange seat and arm revolution upper flange seat lower end is solid The fixed arm rotary cylinder shell connected fixes the arm rotary cylinder adapter sleeve and arm being connected with arm rotary cylinder shell lower end Rotary cylinder adapter sleeve lower end is fixed the arm rotary cylinder lower cover of connection, is sequentially passed through arm revolution upper flange seat, arm along Z-direction and return Turn cylinder shell, arm rotary cylinder adapter sleeve and the fuselage lifting piston rod of arm rotary cylinder lower cover, be arranged on fuselage lifting piston Bar and the sealing ring of arm rotary cylinder lower cover, the circular cone being arranged between fuselage lifting piston rod and arm rotary cylinder adapter sleeve rolling Sub-bearing, it is arranged on the lifting stop nut of fuselage lifting piston rod upper end, is separately positioned on fuselage lifting piston rod and arm Arm revolution guide pad and arm between rotary cylinder shell is fixed catch, is arranged on arm revolution guide pad and lives with fuselage lifting Arm revolution feather key between stopper rod, it is arranged on arm and fixes the abrasive rubber pad of catch and arm rotary cylinder shell；? Arm is fixed and is provided with sealing gasket between catch and arm rotary cylinder shell, and arm is fixed catch and passed through with arm rotary cylinder shell Bolt is connected and is positioned by alignment pin, and arm revolution guide pad is bonded by arm revolution guiding with fuselage lifting piston rod Connecing, arm link includes the fixing seat of lifting being arranged on fuselage lifting piston rod side, the lifting location arranged along Z-direction activity Bar, be sleeved on lifting location bar on lifting position detector, the lifting housing cylinder body being sleeved on fuselage lifting piston rod, set Put the lift cylinders upper connecting base in lifting housing cylinder body upper end, be arranged on the lift cylinders upper cover of lift cylinders upper connecting base upper end, set Put the lift cylinders outside framework oil seal between lift cylinders upper connecting base and fuselage lifting piston rod, be arranged on fuselage lifting piston rod Piston bush, the lifting that is arranged on along Z-direction in fuselage lifting piston rod lower end in blind hole guides splined shaft, is arranged on lifting and guides Between splined shaft and fuselage lifting piston rod lifting fairlead, be arranged on lifting housing cylinder body lower end lift cylinders lower flange Seat, be arranged on lift cylinders lower flange seat and lifting fairlead between lifting lower skeleton oil sealing, be arranged on lift cylinders lower flange seat The adpting flange seat of going to the bottom of lower end, it is sleeved on lifting fairlead lower end and is arranged on the lower anti-of adpting flange seat lower end of going to the bottom and uncages Female and be arranged on down the split pin on locking locknut, lifting location bar is fixed seat by the second locking nut with lifting and is connected, Lifting fairlead is fixing with fuselage lifting piston rod to be connected, and lift cylinders lower flange seat is provided with oil through.

Further, described hydraulic control system include fuel tank, filter, oil pump, motor, the first main road, second bypass, Main road check valve, the second main road, wrist revolution hydraulic control module, relief valve, Pressure gauge branch road, pressure meter switch, pressure refer to Show table, off-load branch road and off-load 2/2-way electromagnetic valve；Fuel tank is connected with oil pump by filter, and driven by motor oil pump turns Dynamic；Oil pump is point two-way after the first main road, and a road connects with main road check valve；Separately lead up to the second bypass Hou Fen tri-tunnel, The first via returns fuel tank by relief valve, and the second tunnel is connected with pressure indicator by pressure meter switch through Pressure gauge branch road, the Three tunnels are connected with the oil-in of off-load 2/2-way electromagnetic valve by off-load branch road, the oil-out of off-load 2/2-way electromagnetic valve and Fuel tank connects；Main road check valve is connected with wrist revolution hydraulic control module by the second main road；

Wrist revolution hydraulic control module include wrist slewing equipment, wrist revolution oil-feed branch road, wrist revolution meter in valve, Wrist turns round three position four-way electromagnetic valve, wrist turns round the first branch, wrist turns round the second branch, wrist revolution fuel-displaced branch road, hands Wrist turns round fuel-displaced choke valve and wrist turns round fuel-displaced 2/2-way electromagnetic valve；Second main road is with wrist revolution oil-feed branch road even Logical, wrist revolution oil-feed branch road turns round the first import d1 of three position four-way electromagnetic valve even through wrist revolution meter in valve with wrist Logical, the first outlet d2 of wrist revolution three position four-way electromagnetic valve turns round the first branch and connects with wrist, and wrist turns round the first branch Connecting with an oil cylinder cavity of wrist slewing equipment, another oil cylinder cavity of wrist slewing equipment and wrist turn round the second branch even Logical, wrist is turned round the second branch and is connected with the second outlet d4 of wrist revolution three position four-way electromagnetic valve, wrist revolution 3-position 4-way Second import d3 of electromagnetic valve turns round fuel-displaced branch road with wrist and connects, and wrist is turned round fuel-displaced branch road and divided two-way, passes through wrist respectively Turn round fuel-displaced choke valve and wrist is turned round fuel-displaced 2/2-way electromagnetic valve and returned fuel tank.

Use and have the beneficial effects that produced by technique scheme:

The present invention uses circular cylindrical coordinate formula, can complete the function such as feeding, upset.The present invention is mainly by finger, wrist, arm and machine The part composition such as body, has that wrist revolution, arm be flexible, arm lifting and arm 4 degree of freedom of revolution, it is possible to meet general Industrial requirements.This mechanical hand is positioned by potentiometer, carries out point position control, and control system uses PLC PLC technology, has good Versatility and motility.This mechanical hand is hydraulic-driven, and the clamping of 4 degree of freedom and finger is all hydraulically operated, the present invention Realize the control of the various compulsory exercise of mechanical hand, be conducive to simplifying circuit, cost-effective, raise labour efficiency, improve productivity ratio, In the layout and planning of oil circuit, combine the basis of machine-building simultaneously, constantly make oil circuit meet the feasibility of manufacture, and will Oil circuit is arranged to space structure, and the structure making mechanical hand is more succinct and compact.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention.

Fig. 2 is the structural representation of arm link of the present invention.

Fig. 3 is the left view structural representation of Fig. 2.

Fig. 4 is the sectional structure schematic diagram of Fig. 2.

Fig. 5 is the structural representation of arm retractor device of the present invention.

Fig. 6 is the structural representation of grip finger device of the present invention.

Fig. 7 is that the A-A of Fig. 6 is to sectional structure schematic diagram.

Fig. 8 is the structural representation of finger before the present invention.

Fig. 9 is the structural representation of finger fingertip of the present invention.

Figure 10 is the structural representation of arm slewing equipment of the present invention.

Figure 11 is that the C-C of Figure 10 is to structural representation.

Figure 12 is the structural representation of fuselage lowering or hoisting gear of the present invention.

Figure 13 is the hydraulic schematic of the present invention.

Figure 14 is the circuit structure block diagram of the present invention.

Figure 15 is the electric magnet action schematic diagram of the present invention.

Detailed description of the invention

As shown in figures 1-15, the present invention includes the fuselage lowering or hoisting gear 1 along Z-direction lifting setting, is arranged on machine along W to revolution The arm slewing equipment 2 of body lowering or hoisting gear 1 upper end, it is arranged on the arm link 3 of arm slewing equipment 2 upper end, is fixedly installed Arm on the left of arm link 3 stretch rear support 4, be fixedly installed on the arm in the middle part of arm link 3 flexible in bearing 5, it is fixedly installed on the flexible front bearing 6 of the arm on the right side of arm link 3, is arranged on the hands on arm link 3 along X to flexible Arm retractor device 7, along U to revolution be arranged on arm retractor device 7 right-hand member wrist slewing equipment 8, be arranged on wrist revolution dress Putting grip finger device 9, hydraulic control system and the circuit control system of 8 right-hand members, arm retractor device 7 is installed on arm and stretches Before during contracting rear support 4, arm are flexible, bearing 5 and arm stretch on bearing 6；

Fuselage lowering or hoisting gear 1 includes arm fixed mount 17, is arranged on the adpting flange 16 in the middle part of arm fixed mount 17 lower end, difference After being arranged on arm fixed mount 17 lower surface and being positioned at the location screw rod fore-stock 13 of adpting flange 16 side and location screw rod Frame 14, be arranged on arm fixed mount 17 lower surface and be positioned at adpting flange 16 side, be installed on location screw rod fore-stock along Z-direction 13 with location screw rod after-poppet 14 in arm location screw rod guide pin bushing 15, be installed on along Z-direction in arm location screw rod guide pin bushing 15 Arm location screw rod 11 and be arranged on the arm location fixed mount 10 of wrist slewing equipment 8 lower end；

Arm stretch the lower end of rear support 4, arm flexible in the lower end of bearing 5 and arm flexible before bearing 6 lower end respectively On fixing arm fixed mount 17, arm location potentiometer 12 is sleeved on arm location screw rod 11, the right side of arm location screw rod 11 Hold be connected fixing with arm location fixed mount 10；

Arm retractor device 7 include two ends be installed on respectively arm stretch rear support 4 and arm flexible in arm in bearing 5 stretch Contracting cylinder sleeve 20, along X to being arranged on arm telescopic piston rod 18 that arm stretches in cylinder sleeve 20, to be arranged on the arm cylinder sleeve 20 that stretches right The arm telescopic oil cylinder bonnet 28 of end, it is arranged on arm telescopic oil cylinder bonnet 28 right side wall and left with arm telescopic piston rod 18 Hold corresponding arm flexible rear dashpot 26, the arm telescopic piston 19 being sleeved in arm telescopic piston rod 18, be arranged on Arm stretch cylinder sleeve 20 right-hand member cylinder body drive end bearing bracket 21, be arranged on cylinder body drive end bearing bracket 21 left side wall and with arm telescopic piston rod Dashpot 27 before the corresponding arm of 18 right-hand members is flexible, it is arranged on leading between cylinder body drive end bearing bracket 21 and arm telescopic piston rod 18 To lining 22, the arm that is sleeved in arm telescopic piston rod 18 stretch outside framework oil seal 23, be arranged on arm and stretch outside framework oil seal 23 right-hand members and the arm being connected with cylinder body drive end bearing bracket 21 right-hand member stretch liner cap 24, be arranged on arm telescopic piston rod 18 right-hand member Arm flexible connection journal stirrup 29,

The arm retractable support being fixedly installed on cylinder body drive end bearing bracket 21 right-hand member male half coupling overlaps 25, is arranged on the flexible middle bearing of arm 5 and arm flexible before arm on bearing 6 stretch cylinder body fairlead 31, guide along X to being movably arranged on the arm cylinder body that stretches Overlap the arm in 31 endoporus stretch cylinder shell 32, be fixedly installed on the arm cylinder body adapter sleeve that arm stretches in cylinder shell 32 33, it is fixedly installed on the wrist oil circuit oil-feed tail-hood 34 of arm cylinder body adapter sleeve 33 left end, is fixedly installed on arm and stretches cylinder body The rotary cylinder bonnet 39 of housing 32 right-hand member, it is arranged on the revolution location logical oil inner stopper 40 of rotary cylinder bonnet 39 right-hand member, is arranged on Wrist oil path in oil cylinder 37 between revolution location logical oil inner stopper 40 and wrist oil circuit oil-feed tail-hood 34, be arranged on arm flexible before Arm on bearing 6 stretch front support lining 30, be arranged on arm stretch front support lining 30 with on arm retractable support set 25 Telescopic oil cylinder slide drive inner sleeve 36, be arranged on telescopic oil cylinder slide drive the telescopic slide in inner sleeve 36 drive overcoat 35 with And plug-in mounting is arranged on the arm arm connected between journal stirrup 29 and rotary cylinder bonnet 39 that stretches and stretches alignment pin 38,

The arm outside framework oil seal 23 that stretches is positioned on the right side of pilot bushing 22, and arm stretches, and to be positioned at cylinder body drive end bearing bracket 21 right for outside framework oil seal 23 In the inner stopper of side, arm retractable support set 25 is arranged on the flexible middle bearing 5 of arm, and arm location fixed mount 10 is fixedly installed on Rotary cylinder bonnet 39 lower end；

Wrist slewing equipment 8 includes that left end is arranged on the wrist rotary piston bar 48 in the logical oil inner stopper 40 of revolution location, left end Fixing with rotary cylinder bonnet 39 right-hand member be connected wrist rotary cylinder after fix seat 41, be fixedly installed on wrist rotary cylinder after fix seat 41 The wrist rotary cylinder of right-hand member is fixed housing 42 and is fixed housing 42 right side with wrist rotary cylinder and fix the wrist that is connected and rotate right envelope Cover 43, be separately positioned on the wrist revolution guiding arc block that wrist rotary cylinder is fixed between housing 42 and wrist rotary piston bar 48 44 and the fixing arc block 46 of wrist revolution, be arranged on the fixing arc block 46 of wrist revolution and wrist rotary cylinder is fixed between housing 42 Wrist rotary sealing pad 65, be arranged on the wrist revolution that wrist revolution guides between arc block 44 and wrist rotary piston bar 48 Connecting key 45, be arranged on wrist rotate right aling cap 43 right-hand member wrist before adpting flange seat 53, be arranged on adpting flange before wrist The seat wrist front support end cap 55 of 53 right-hand members and before being arranged on wrist between adpting flange seat 53 and wrist front support end cap 55 Wrist intermediate supports set 54,

Fix seat 41 after wrist rotary cylinder, wrist rotary cylinder fixes housing 42 and wrist rotates right aling cap 43 and is bolted And positioned by wrist support alignment pin 47, fix seat 41 after the left end of the fixing arc block 46 of wrist revolution and wrist rotary cylinder and lead to Crossing bolt connect and positioned by alignment pin, the right-hand member at wrist rotary piston bar 48 is provided with grip finger dashpot 52, It is provided with the pipeline of connection grip finger dashpot 52 and wrist oil path in oil cylinder 37 on wrist rotary piston bar 48, turns round in wrist Fix after piston rod 48 and wrist rotary cylinder between seat 41 and be provided with deep groove ball bearing, revolve with wrist at wrist rotary piston bar 48 Turn right and be provided with deep groove ball bearing between capping 43, wrist rotary piston bar 48 is provided with for carrying on the back tight deep groove ball bearing Locking nut, wrist revolution guides arc block 44 and drives wrist rotary piston bar 48 to rotate setting, guides arc in wrist revolution It is provided with arc on block 44 and leads to oil groove；

Grip finger device 9 includes that left end is arranged on the grip finger piston rod 50 in wrist rotary piston bar 48 inner stopper, sets Put that the wrist telescopic piston at grip finger piston rod 50 left end overlaps 51, the finger that is sleeved on grip finger piston rod 50 resets Spring 49, it is sleeved on grip finger piston rod 50 and is arranged on the grip finger outside framework oil seal on wrist front support end cap 55 56, it is arranged on the clamping support plate 64 of wrist front support end cap 55 right-hand member, is arranged on grip finger piston rod 50 right-hand member and in clamping After the grip finger push pedal 63, two slided on support plate 64 is symmetrical arranged and left end is respectively hinged in grip finger push pedal 63 Finger 62, by hinging pin shaft 60 with corresponding after the hinged front finger 61 of finger 62 right-hand member, be arranged in corresponding front finger 61 Fulcrum straight pin 59 between portion with clamping support plate 64 right-hand member and being arranged on corresponding front finger 61 right-hand member and for clamping The finger fingertip 58 of block 57；

Finger back-moving spring 49 is arranged on before wrist telescopic piston set 51 and wrist between adpting flange seat 53,

Arm slewing equipment 2 includes that the arm that upper end and adpting flange 16 are bolted turns round upper flange seat 71 and arm Revolution upper flange seat 71 lower end is fixed the arm rotary cylinder shell 70 of connection and is fixed with arm rotary cylinder shell 70 lower end and to be connected Arm rotary cylinder adapter sleeve 69 fix with arm rotary cylinder adapter sleeve 69 lower end be connected arm rotary cylinder lower cover 68, depend on along Z-direction The secondary arm that runs through turns round upper flange seat 71, arm rotary cylinder shell 70, arm rotary cylinder adapter sleeve 69 and arm rotary cylinder lower cover The fuselage lifting piston rod 90 of 68, it is arranged on the sealing ring of fuselage lifting piston rod 90 and arm rotary cylinder lower cover 68, is arranged on Taper roll bearing 67 between fuselage lifting piston rod 90 and arm rotary cylinder adapter sleeve 69, it is arranged on fuselage lifting piston rod The arm lifting stop nut 66, being separately positioned between fuselage lifting piston rod 90 and arm rotary cylinder shell 70 of 90 upper ends Revolution guide pad 75 and arm fix catch 73, the hands being arranged between arm revolution guide pad 75 and fuselage lifting piston rod 90 Revolution of arm feather key 72 and be arranged on arm and fix the abrasive rubber pad 74 of catch 73 and arm rotary cylinder shell 70；

Fixing at arm and be provided with sealing gasket between catch 73 and arm rotary cylinder shell 70, arm is fixed catch 73 and is returned with arm Turning cylinder shell 70 to be bolted and positioned by alignment pin, arm revolution guide pad 75 passes through with fuselage lifting piston rod 90 Arm revolution feather key 72 connects,

Arm link 3 includes the fixing seat 77 of lifting being arranged on fuselage lifting piston rod 90 side, the liter arranged along Z-direction activity Drop location bar 82, the lifting position detector 81 being sleeved on lifting location bar 82, be sleeved on fuselage lifting piston rod 90 Lifting housing cylinder body 91, be arranged on lifting housing cylinder body 91 upper end lift cylinders upper connecting base 79, be arranged in lift cylinders connection The lift cylinders upper cover 78 of seat 79 upper ends, the lift cylinders bone that is arranged between lift cylinders upper connecting base 79 and fuselage lifting piston rod 90 Frame oil sealing 80, the piston bush being arranged on fuselage lifting piston rod 90, be arranged on fuselage lifting piston rod 90 lower end along Z-direction in blind Lifting in hole guides splined shaft 88, is arranged on the lifting guiding that lifting guides between splined shaft 88 and fuselage lifting piston rod 90 Set 89, it is arranged on the lift cylinders lower flange seat 87 of lifting housing cylinder body 91 lower end, is arranged on lift cylinders lower flange seat 87 and lifting Between fairlead 89 lifting lower skeleton oil sealing 86, be arranged on lift cylinders lower flange seat 87 lower end adpting flange seat 85 of going to the bottom, It is sleeved on lifting fairlead 89 lower end and is arranged under adpting flange seat 85 lower end of going to the bottom locking locknut 84 and is arranged on down Split pin 83 on locking locknut 84,

Lifting location bar 82 is connected by the fixing seat 77 of the second locking nut 76 and lifting, and lifting fairlead 89 is lived with fuselage lifting Stopper rod 90 is fixing to be connected, and lift cylinders lower flange seat 87 is provided with oil through.

As shown in figure 13, the hydraulic control system of the present invention includes fuel tank 92, filter 93, oil pump 94, motor 95, first Main road the 96, second bypass 97, main road check valve the 98, second main road 99, arm telescopic hydraulic control module 100, arm revolution liquid Pressure control module 101, raise-lower hydraulic control module 102, wrist revolution hydraulic control module 103, grip finger hydraulic control mould Block 104, relief valve 105, Pressure gauge branch road 106, pressure meter switch 107, pressure indicator 108, off-load branch road 109 and off-load 2/2-way electromagnetic valve 110；

Fuel tank 92 is connected with oil pump 94 by filter 93, and motor 95 drives oil pump 94 to rotate；

Oil pump 94 is point two-way after the first main road 96, and a road connects with main road check valve 98；Separately lead up to the second bypass 97 Hou Fen tri-tunnel, the first via returns fuel tank 92 by relief valve 105, and pressure meter switch 107 is passed through through Pressure gauge branch road 106 in the second tunnel Connecting with pressure indicator 108, the 3rd tunnel is connected with the oil-in of off-load 2/2-way electromagnetic valve 110 by off-load branch road 109, The oil-out of off-load 2/2-way electromagnetic valve 110 connects with fuel tank 92；

Main road check valve 98 is by the second main road 99 Hou Fen five tunnel, respectively with arm telescopic hydraulic control module 100, arm revolution Hydraulic control module 101, raise-lower hydraulic control module 102, wrist revolution hydraulic control module 103 and grip finger hydraulic pressure control Molding block 104 connects；

Arm telescopic hydraulic control module 100 includes arm retractor device 7, flexible oil-feed branch road 111, flexible meter in valve 112, flexible three position four-way electromagnetic valve 113, flexible first branch road 114, flexible buffer cell 115, sequence valve 116, buffer unidirectional Valve 117, flexible first branch 118, flexible second branch 119, flexible oil return branch road 120, flexible meter out valve 121 and stretch Retraction oil 2/2-way electromagnetic valve 122；

Second main road 99 connects with flexible oil-feed branch road 111, and flexible oil-feed branch road 111 is through flexible meter in valve 112 and stretches First import a1 connection of three position four-way electromagnetic valve 113, the first outlet a2 of flexible three position four-way electromagnetic valve 113 is by flexible the One branch road 114 and the inlet communication of flexible buffer cell 115, the outlet of flexible buffer cell 115 is by flexible first branch 118 Connecting with the oil cylinder rodless cavity of arm retractor device 7, the cylinder rod chamber of arm retractor device 7 is with flexible second branch 119 even Logical, flexible second branch 119 connects with the second outlet a4 of flexible three position four-way electromagnetic valve 113, flexible three position four-way electromagnetic valve The second import a3 of 113 connects with flexible oil return branch road 120, flexible 120 points of two-way of oil return branch road, and flexible oil return of leading up to saves Stream valve 121 returns fuel tank 92, and another road returns fuel tank 92 through flexible oil return 2/2-way electromagnetic valve 122；

Flexible three position four-way electromagnetic valve 113 Median Function is O type；

Flexible buffer cell 115 includes sequence valve 116 and the dashpot check valve 117 being arranged in parallel, the oil-in of sequence valve 116 with Flexible first branch 118 connects, and the oil-out of sequence valve 116 connects with flexible first branch road 114, entering of dashpot check valve 117 Hydraulic fluid port connects with flexible first branch road 114, and the oil-out of dashpot check valve 117 connects with flexible first branch 118；

Arm revolution hydraulic control module 101 includes arm slewing equipment 2, arm revolution oil-feed branch road 123, arm revolution oil-feed Choke valve 124, arm revolution three position four-way electromagnetic valve 125, arm turns round the first branch 126, arm turns round the second branch 127, Arm turns round fuel-displaced branch road 128, arm turns round fuel-displaced choke valve 129 and arm turns round fuel-displaced 2/2-way electromagnetic valve 130；

Second main road 99 connects with arm revolution oil-feed branch road 123, and revolution of arm meter in handled by arm revolution oil-feed branch road 123 Valve 124 connects with the first import b1 of arm revolution three position four-way electromagnetic valve 125, arm revolution three position four-way electromagnetic valve 125 First outlet b2 turns round the first branch 126 and connects with arm, and arm turns round an oil of the first branch 126 and arm slewing equipment 2 Cylinder cavity connects, and another oil cylinder cavity of arm slewing equipment 2 turns round the second branch 127 and connects with arm, arm revolution second Branch 127 connects with the second outlet b4 of arm revolution three position four-way electromagnetic valve 125, arm revolution three position four-way electromagnetic valve 125 The second import b3 and arm turn round fuel-displaced branch road 128 and connect, arm revolution 128 points of two-way of fuel-displaced branch road, respectively through arm Turn round fuel-displaced choke valve 129 and arm turns round fuel-displaced 2/2-way electromagnetic valve 130 and returns fuel tank 92；

Arm revolution three position four-way electromagnetic valve 125 Median Function is O type；

Raise-lower hydraulic control module 102 includes fuselage lowering or hoisting gear 1, lifting oil-feed branch road 131, lifting meter in valve 132, rises Fall three position four-way electromagnetic valve 133, lift the first branch road 134, lifting buffer cell 135, lift the first branch 136, lifting second Branch 137, lift fuel-displaced branch road 138, lift fuel-displaced choke valve 139 and lift fuel-displaced 2/2-way electromagnetic valve 140；Lifting three Position four-way solenoid valve 133 Median Function is O type；

Second main road 99 connects with lifting oil-feed branch road 131, and lifting oil-feed branch road 131 is through lifting meter in valve 132 and rises First import c1 connection of fall three position four-way electromagnetic valve 133, the first outlet c2 of lifting three position four-way electromagnetic valve 133 is through lifting First branch road 134 and the inlet communication of lifting buffer cell 135, lift outlet and lifting first branch 136 of buffer cell 135 Connection, lifts the first branch 136 and connects with the oil cylinder rodless cavity of fuselage lowering or hoisting gear 1, the cylinder rod chamber of fuselage lowering or hoisting gear 1 Connect with lifting the second branch 137, lift the second branch 137 and connect with the second outlet c4 of lifting three position four-way electromagnetic valve 133, Second import c3 of lifting three position four-way electromagnetic valve 133 connects with lifting fuel-displaced branch road 138, lifts 138 points of two-way of fuel-displaced branch road, Respectively by lifting fuel-displaced choke valve 139 and lifting fuel-displaced 2/2-way electromagnetic valve 140 and return fuel tank 92；

Lifting buffer cell 135 is identical with flexible buffer cell 115 structure；

Wrist revolution hydraulic control module 103 includes wrist slewing equipment 8, wrist revolution oil-feed branch road 141, wrist revolution oil-feed Choke valve 142, wrist revolution three position four-way electromagnetic valve 143, wrist turns round the first branch 144, wrist turns round the second branch 145, Wrist turns round fuel-displaced branch road 146, wrist turns round fuel-displaced choke valve 147 and wrist turns round fuel-displaced 2/2-way electromagnetic valve 148；

Second main road 99 connects with wrist revolution oil-feed branch road 141, and wrist revolution oil-feed branch road 141 turns round meter in through wrist Valve 142 connects with the first import d1 of wrist revolution three position four-way electromagnetic valve 143, wrist revolution three position four-way electromagnetic valve 143 First outlet d2 turns round the first branch 144 and connects with wrist, and wrist turns round an oil of the first branch 144 and wrist slewing equipment 8 Cylinder cavity connects, and another oil cylinder cavity of wrist slewing equipment 8 turns round the second branch 145 and connects with wrist, wrist revolution second Branch 145 connects with the second outlet d4 of wrist revolution three position four-way electromagnetic valve 143, wrist revolution three position four-way electromagnetic valve 143 The second import d3 and wrist turn round fuel-displaced branch road 146 and connect, wrist revolution 146 points of two-way of fuel-displaced branch road, pass through wrist respectively Turn round fuel-displaced choke valve 147 and wrist is turned round fuel-displaced 2/2-way electromagnetic valve 148 and returned fuel tank 92；

Wrist revolution three position four-way electromagnetic valve 143 Median Function is O type；

Grip finger hydraulic control module 104 includes grip finger device 9, air relief valve 149, clamps the first branch road 150, clamping joint Stream valve 151, clamping two-bit triplet electromagnetic valve 152, clamp the second branch road 153, clamping check valve 154, clamping the 3rd branch road 155, Pressure switch 156 and feedback oil circuit 157；

Second main road 99 and air relief valve 149 inlet communication, the outlet of air relief valve 149 connects with clamping the first branch road 150, clamps the One branch road 150 is connected with clamping two-bit triplet electromagnetic valve 152 first import A by clamping choke valve 151, clamping two-bit triplet electricity Magnet valve 152 exports P and connects with clamping the second branch road 153, clamps the inlet communication of the second branch road 153 and clamping check valve 154, folder The outlet of tight check valve 154 connects with clamping the 3rd branch road 155, clamps 155 points of two-way of the 3rd branch road, respectively with pressure switch 156 and grip finger device 9 oil cylinder rodless cavity connection；It is provided with feedback between air relief valve 149 and clamping check valve 154 Oil circuit 157.

As shown in figure 14, the circuit control system of the present invention includes that programmable processor PLC, arm rotate forward switch SB1, hands Arm reversal switch SB2, arm rise switch SB3, arm declines switch SB4, arm stretches out switch SB5, arm retracts switch SB6, wrist rotate forward switch SB7, wrist reversal switch SB8, grip finger switch SB9, finger trip switch SB10, arm revolution Buffer switch SB11, arm lift buffer switch SB12, arm stretches buffer switch SB13, wrist turns round buffer switch SB14, Activate switch SB15, Aligning control switch SB16, continuously switch SB17, point position control switch SB18, shutdown switch SB19,

Arm rotates forward spacing ST1, arm inverts spacing ST2, arm lifting position-limit ST3, arm descending spacing ST4, arm stretch out Spacing ST5, the arm spacing ST6 of retraction, wrist rotate forward spacing ST7, wrist inverts spacing ST8,

Signal lights HL, off-load 2/2-way control line of electromagnetic valve circle 1YA, flexible oil return 2/2-way electromagnetic valve coil 2YA, lifting Fuel-displaced 2/2-way electromagnetic valve coil 3YA, arm turn round fuel-displaced 2/2-way electromagnetic valve coil 4YA, wrist turns round fuel-displaced two Two three-way electromagnetic valve coil 5YA, flexible three position four-way electromagnetic valve left coil 6YA, flexible three position four-way electromagnetic valve right coil 7YA, liter Fall three position four-way electromagnetic valve left coil 8YA, lifting three position four-way electromagnetic valve right coil 9YA, arm revolution three position four-way electromagnetic valve Left coil 10YA, arm turn round three position four-way electromagnetic valve right coil 11YA, wrist turns round three position four-way electromagnetic valve left coil 12YA, Wrist revolution three position four-way electromagnetic valve right coil 13YA and clamping two-bit triplet electromagnetic valve coil 14YA；

Arm rotates forward spacing ST1 and is connected between the COM end of programmable processor PLC and the X0 end of programmable processor PLC,

Arm inverts spacing ST2 and is connected between the COM end of programmable processor PLC and the X1 end of programmable processor PLC,

Arm lifting position-limit ST3 is connected between the COM end of programmable processor PLC and the X2 end of programmable processor PLC,

Arm descending spacing ST4 is connected between the COM end of programmable processor PLC and the X3 end of programmable processor PLC,

Arm stretches out spacing ST5 and is connected between the COM end of programmable processor PLC and the X4 end of programmable processor PLC,

The arm spacing ST6 of retraction is connected between the COM end of programmable processor PLC and the X5 end of programmable processor PLC,

Wrist rotates forward spacing ST7 and is connected between the COM end of programmable processor PLC and the X6 end of programmable processor PLC,

Wrist inverts spacing ST8 and is connected between the COM end of programmable processor PLC and the X7 end of programmable processor PLC；

Arm rotates forward switch SB1 and is connected between the COM end of programmable processor PLC and the X10 end of programmable processor PLC,

Arm reversal switch SB2 is connected between the COM end of programmable processor PLC and the X11 end of programmable processor PLC,

Arm rises switch SB3 and is connected between the COM end of programmable processor PLC and the X12 end of programmable processor PLC,

Arm declines switch SB4 and is connected between the COM end of programmable processor PLC and the X13 end of programmable processor PLC,

Arm stretches out switch SB5 and is connected between the COM end of programmable processor PLC and the X14 end of programmable processor PLC,

Arm retraction switch SB6 is connected between the COM end of programmable processor PLC and the X15 end of programmable processor PLC,

Wrist rotates forward switch SB7 and is connected between the COM end of programmable processor PLC and the X16 end of programmable processor PLC,

Wrist reversal switch SB8 is connected between the COM end of programmable processor PLC and the X17 end of programmable processor PLC,

Grip finger switch SB9 is connected between the COM end of programmable processor PLC and the X20 end of programmable processor PLC,

Finger trip switch SB10 is connected between the COM end of programmable processor PLC and the X21 end of programmable processor PLC,

Arm revolution buffer switch SB11 be connected on the COM end of programmable processor PLC and programmable processor PLC X22 end it Between,

Arm lifting buffer switch SB12 be connected on the COM end of programmable processor PLC and programmable processor PLC X23 end it Between,

Arm stretch buffer switch SB13 be connected on the COM end of programmable processor PLC and programmable processor PLC X24 end it Between,

Wrist revolution buffer switch SB14 be connected on the COM end of programmable processor PLC and programmable processor PLC X25 end it Between,

Activate switch SB15 is connected between the COM end of programmable processor PLC and the X26 end of programmable processor PLC,

Aligning control switch SB16 is connected between the COM end of programmable processor PLC and the X27 end of programmable processor PLC,

Switch SB17 is connected between the COM end of programmable processor PLC and the X30 end of programmable processor PLC continuously,

Point position control switch SB18 is connected between the COM end of programmable processor PLC and the X31 end of programmable processor PLC,

Shutdown switch SB19 is connected between the COM end of programmable processor PLC and the X32 end of programmable processor PLC；

The exchange fire-wire power end L of programmable processor PLC terminates 220V alternating current power supply live wire end, programmable processor PLC's Exchange zero line power end N terminates 220V alternating current power supply zero line side；

First common port COM1 end and the second public COM2 end of programmable processor PLC connect 220V alternating current power supply live wire respectively End,

Off-load 2/2-way control line of electromagnetic valve circle 1YA is connected on Y0 end and the 220V alternating current power supply zero line of programmable processor PLC Between end,

Flexible oil return 2/2-way electromagnetic valve coil 2YA is connected on Y1 end and the 220V alternating current power supply zero line of programmable processor PLC Between end,

Lift fuel-displaced 2/2-way electromagnetic valve coil 3YA and be connected on Y2 end and the 220V alternating current power supply zero line of programmable processor PLC Between end,

Arm turns round fuel-displaced 2/2-way electromagnetic valve coil 4YA and is connected on Y3 end and the 220V alternating current power supply of programmable processor PLC Between zero line side,

Wrist is turned round fuel-displaced 2/2-way electromagnetic valve coil 5YA and is connected on Y4 end and the 220V alternating current power supply of programmable processor PLC Between zero line side,

Flexible three position four-way electromagnetic valve left coil 6YA is connected on Y5 end and the 220V alternating current power supply zero line side of programmable processor PLC Between,

Flexible three position four-way electromagnetic valve right coil 7YA is connected on Y6 end and the 220V alternating current power supply zero line side of programmable processor PLC Between,

Lifting three position four-way electromagnetic valve left coil 8YA is connected on Y7 end and the 220V alternating current power supply zero line side of programmable processor PLC Between,

Lifting three position four-way electromagnetic valve right coil 9YA is connected on Y10 end and the 220V alternating current power supply zero line side of programmable processor PLC Between,

Arm revolution three position four-way electromagnetic valve left coil 10YA is connected on Y11 end and the 220V alternating current power supply of programmable processor PLC Between zero line side,

Arm revolution three position four-way electromagnetic valve right coil 11YA is connected on Y12 end and the 220V alternating current power supply of programmable processor PLC Between zero line side,

Wrist revolution three position four-way electromagnetic valve left coil 12YA is connected on Y13 end and the 220V alternating current power supply of programmable processor PLC Between zero line side,

Wrist revolution three position four-way electromagnetic valve right coil 13YA is connected on Y14 end and the 220V alternating current power supply of programmable processor PLC Between zero line side,

Clamping two-bit triplet electromagnetic valve coil 14YA is connected on Y15 end and the 220V alternating current power supply zero line side of programmable processor PLC Between,

Signal lights HL is connected between the Y16 end of programmable processor PLC and 220V alternating current power supply zero line side.

Wherein programmable processor PLC is preferably FX2N-64 type.

The present invention is made up of actuator, drive system and control system.The present invention uses circular cylindrical coordinate formula, energy Complete the function such as feeding, upset.The present invention is mainly by finger part i.e. grip finger device 9, wrist i.e. wrist revolution dress Putting 8, arm segment includes arm retractor device 7, and fuselage includes that fuselage lowering or hoisting gear 1 forms with arm slewing equipment 2 part such as grade, Have wrist revolution, arm is flexible, arm lifts and arm turns round 4 degree of freedom, it is possible to meet general industrial requirements.This Bright by potentiometer i.e. arm location potentiometer 12 and lifting position detector 81, and it is respectively cooperating with arm location screw rod 11 and lifting Location bar 8 positions, and carries out point position control, and control system uses programmable controller PLC, has good versatility with flexible Property.The present invention is hydraulic-driven, and the clamping of 4 degree of freedom and finger is all hydraulically operated, and this design realizes the various rule of mechanical hand Determine the control of action, be conducive to simplifying circuit, cost-effective, raise labour efficiency, improve productivity ratio, simultaneously in the layout of oil circuit Combine the basis of machine-building with in planning, constantly make oil circuit meet the feasibility of manufacture, and oil circuit is arranged to space knot Structure, the structure making mechanical hand is more succinct and compact.

Finger part is used for directly clamping workpiece, and wrist is to connect hand and the parts of arm, and can be used to adjust Grabbed the orientation of object (i.e. attitude)；Arm segment is that the vitals of thing, hand, wrist is grabbed in supporting.The effect of hand is Drive finger to go to capture object, and moved to predetermined position by pre-provisioning request.Arm has four degree of freedom, stretches before and after arm Be condensed to X to, wrist rotate to be U to, arm oscilaltion is Z-direction, arm revolution for W to.

Rectangular coordinate takes up space greatly, and working range is little, and inertia is big, and its advantage is simple in construction, rigidity height, at degree of freedom relatively Use time few.Spherical coordinates formula and articulated take up room little, working range is big, and inertia is little, and required drive is little, can capture bottom surface Object, multi-joint can select approach with obstacle thing, but articulated structure is complicated, so being also of little use.The present invention uses Circular cylindrical coordinate i.e. arm slewing equipment 2 take up space less, working range is relatively big, but inertia is also big, and can not capture bottom surface thing Body.

Hand part is used to the workpiece that directly captures or hold with a firm grip, due to be held the shape of workpiece, size, weight, The difference of material property, surface appearance etc..

Clamp-type hand is made up of finger, drive mechanism and driving means three part, and it is variously-shaped to capturing Workpiece has bigger adaptability, of many uses, can be with block 57 such as grip axes, dish or sets.When pressure oil is on the right of hydraulic cylinder During oil pipe oil-feed, piston rod is moved to the left, and promotes finger Guan Bi；When pressure oil is from the oil-feed of the hydraulic cylinder left side, finger is pulled to open Open.

When using the present invention, fuselage lowering or hoisting gear 1 is fixed on precalculated position, is stretched by arm slewing equipment 2, arm Device 7, wrist slewing equipment 8 work, and are particularly suitable in work in hot environment and Korrosionsmedium the mechanical hand worked.

Arm link 3, arm stretch rear support 4, the flexible middle bearing 5 of arm and flexible front bearing 6 support of arm even Catcher arm retractor device 7, arm location potentiometer 12, location screw rod fore-stock 13, location screw rod after-poppet 14 and arm are surveyed Position screw rod guide pin bushing 15 can be supported to protect arm location screw rod 11, the preferred pyrite of pilot bushing 22 or phosphor bronze, is stretched by arm Before dashpot 26 after contracting, arm are flexible, dashpot 27 can play buffer protection function, and the arm front support lining 30 that stretches is preferred Pyrite or phosphor bronze；Arm stretches cylinder shell 32 telescopic slide in arm stretches cylinder body fairlead 31, thus shares arm The moment of flexure of telescopic piston rod 18 and moment of torsion, improve its service life, and plays proofing dust and protecting effect, and arm telescopic piston rod 18 is led to Crossing the arm alignment pin 38 that stretches drives arm cylinder body adapter sleeve 33 to stretch, rotary cylinder bonnet 39, revolution location logical oil inner stopper 40, Fix seat 41 after wrist rotary cylinder, wrist rotary cylinder is fixed housing 42 wrist and is rotated right aling cap 43, wrist revolution guiding arc block 44, wrist revolution connecting key 45, the fixing arc block 46 of wrist revolution, wrist rotary sealing pad 65, wrist support alignment pin 47 with And wrist rotary piston bar 48 forms angling cylinder housing；Realize resetting by finger back-moving spring 49；Lived by grip finger Stopper rod 50, wrist telescopic piston set 51, grip finger dashpot 52, adpting flange seat 53 before wrist, wrist intermediate supports set 54, Wrist front support end cap 55, grip finger outside framework oil seal 56, finger fingertip 58, fulcrum straight pin 59, hinging pin shaft 60, front finger 61, rear finger 62, grip finger push pedal 63 and clamping support plate 64 realize linkage clamping or unclamp, and taper roll bearing 67 is permissible Bearing axial force, arm rotary cylinder lower cover 68, arm rotary cylinder adapter sleeve 69, arm rotary cylinder shell 70, arm return roll up method Blue seat 71, arm revolution feather key 72, arm fix catch 73, abrasive rubber pad 74, arm revolution guide pad 75 and machine Body lifting piston rod 90 realizes the action of angling cylinder, by fuselage lifting piston rod 90, lifting fixing seat 77, lift cylinders upper cover 78, lift cylinders upper connecting base 79, lift cylinders outside framework oil seal 80, lifting position detector 81, lifting location bar 82, split pin 83, Under locking locknut 84, adpting flange seat 85 of going to the bottom, lifting lower skeleton oil sealing 86, lift cylinders lower flange seat 87, lifting guide spline Axle 88, lifting fairlead 89 and lifting housing cylinder body 91 realize upgrade actions, guide splined shaft 88 and fuselage liter by lifting Fall piston rod 90 suit design, plays support, fixing and guide effect, reasonable in design.Feedback oil circuit 157 realizes check valve Control so that fluid returns in fuel tank.

Wrist part is arranged between hand and arm, changes further on the basis of its effect arm movement the most again Becoming or adjustment hand is in the orientation in space, to expand the actuating range of mechanical hand, and make mechanical hand become dexterousr, adaptability is more By force, compact conformation, lightweight, rationally distributed,

Wrist part as the actuator of mechanical hand, undertake connection and supporting role, except guarantee power and motion requirement with And have outside enough intensity, rigidity, also should consider, rational deployment,

The ultimate value of the angle of revolution of wrist part revolution and the angle of revolution of arm is by the angle allowing revolution between moving plate, stator Determine (generally less than 270 °) °.

The grip finger action of the present invention is by single-action hydraulic cylinder, only needs an oil pipe, optimizes structure, lead to hand and drive The oil pipe of hydrodynamic cylinder pressure is to pass through from revolution casing wall, then surrounds hand clamping cylinder by a groove structure, during wrist revolution, No matter which orientation oil circuit still can ensure unimpeded at, this layout can make oil pipe neither expose, and is not reversed.Wrist be used for and Arm connects, three oil pipes (for hand oil pipe, two for wrist rotating hydraulic cylinders) by arm by and return through wrist Turning casing wall and respectively enter rotating hydraulic cylinder and hand driving hydraulic cylinder, optimize pipeline, reasonable in design, compact conformation, pipeline uses Life-span is long, not easy oil leakage.

Arm parts are the primary grip parts of mechanical hand.Its effect be supporting wrist and hand (include workpiece or work Tool), and drive them to make space motion.

Improve as structure, select the sealing member of rubber and fluorinated plastic combination, with reducing friction resistance, improve hydraulic cylinder Life-span；Because the movement inertia of manipulator arm is relatively big, before anchor point, to add buffering and arrestment mechanism or locking device.Such as By valve group or be provided with on cylinder body groove realize buffering.Add safety guard, prevent because of collision overload damage machine Tool structure.The present invention selects solenoid directional control valve loop, it is thus achieved that preferably automaticity and economic benefit.The present invention typically uses Single pump or double pump fuel feeding, the mechanism such as arm is flexible, arm pitching, arm rotation uses fuel feeding in parallel, so can effectively reduce system The charge oil pressure of system, reversal valve preferably employs middle position " O " type reversal valve, it is ensured that the system of multi-cylinder motion does not interfere with each other, it is achieved with Step or asynchronous motion.

Whole hydraulic system can only work with single pump or double pump, and the flow difference needed for each hydraulic cylinder is relatively big, each hydraulic pressure Cylinder all works with the full flow of hydraulic pump cannot meet design requirement.Despite hydraulic cylinder be single speed operation, but It is also required to carry out throttle grverning, in order to ensure the even running of hydraulic cylinder.Each cylinder may select in-line or oil return line throttle grverning, Because system is middle low-pressure system, the most suitably select choke valve speed governing.

Flow needed for arm rotary cylinder, wrist rotary cylinder and clamping cylinder is closer to, and the flow of arm telescoping cylinder is relatively big, Flow difference needed for these two groups of cylinders is relatively big, so can select single oil pump feed system, it is possible to select double pump oil supply system, as Preferably, the present invention selects single oil pump feed.Single oil pump feed will be to need the flow selecting pump of maximum flow in all hydraulic cylinder, its Advantage is that system is relatively simple, and required element is less, good economy performance.

Universal industrial mechanical hand requires route-variable, is required for buffering during the starting and stopping of hydraulic cylinder.As A bi-bit bi-pass solenoid directional control valve and a choke valve is used to form buffer loop shown in Figure 13.When hydraulic cylinder is to wishing During point, position detecting device signaling to main frame, then host computer control solenoid valves cuts off the path of bi-bit bi-pass, hydraulic pressure The loop of cylinder, diverted via choke valve oil sump tank, the resistance of the oil return line of increase, makes hydraulic cylinder speed slow down, and prevents impact from reaching buffering Purpose, this loop is also applied for oscillating cylinder.

Increase auxiliary oil way: use off-load oil circuit to avoid the long-time load operation of oil pump, thus reduce energy consumption, improve and use In the life-span, by pressure measurement oil circuit and inspection system working condition, and protect Pressure gauge by pressure meter switch, extend it and use the longevity Life, becomes the signal of telecommunication by pressure switch by the fuel injection pressure signal of clamping oil circuit, thus realizes electricity feedback and accurately control.

Complete electric magnet sequence of movement table is as follows: electric magnet sequence of movement chart as shown in figure 15.

Electrical control of the present invention is stable, programmed method is easy to learn, function is strong, and the ratio of performance to price is high, hardware is supporting Complete, user is easy to use, strong adaptability, contactless distribution, and reliability is high, capacity of resisting disturbance is strong, the design of system, peace Fill, debugging work load is few, maintenance load is little, easy to maintenance, and volume is little, and energy consumption is low.

The distribution of travel switch of the present invention as shown in figure 14,

1, the rotating hydraulic cylinder of promotion arm revolution:

Arm rotates forward spacing: the reversion of ST1 arm is spacing: ST2

2, the direct acting hydraulic cylinder of arm lifting is promoted

Arm lifting position-limit: ST3 arm descending spacing: ST4

3, the direct acting hydraulic cylinder that arm is flexible is promoted

Arm stretches out spacing: ST5 arm is retracted spacing: ST6

4, the rotating hydraulic cylinder of wrist revolution is promoted

Wrist rotates forward spacing: the reversion of ST7 wrist is spacing: ST8

5, the direct acting hydraulic cylinder of grip finger is promoted

The clamping cylinder of finger pine is opened by structure spacing, therefore need not limit switch

The distribution of hand push button of the present invention

1, arm revolution controls

Arm rotates forward: SB1 arm inverts: SB2 arm revolution buffering: SB11

2, arm elevating control

Arm rises: SB3 arm declines: SB4 arm lifting buffering: SB12

3, arm extension and contraction control

Arm stretches out: SB5 arm is retracted: the flexible buffering of SB6 arm: SB13

4, wrist revolution controls

Wrist rotates forward: SB7 wrist inverts: SB8 wrist revolution buffering: SB14

5, grip finger controls

Grip finger: SB9 finger unclamps: SB10

6, other

Start: SB15 Aligning control: SB16 is continuous: SB17

Point position control: SB18 stops: SB19

The distribution of the input and output relay of the present invention

1, input and output element number all represents with octal number, and each travel switch above-mentioned and hand push button correspondence one are defeated Enter relay, then input contact is allocated as follows:

ST1-ST8:X0-X7 (one_to_one corresponding in order).

SB1-SB17:X10-X32 (one_to_one corresponding in order).

2, output contact is allocated as follows:

The corresponding output relay of each electromagnetic valve, then 1YA-14YA:Y0-Y16 (one_to_one corresponding in order).

Control panel design

This panel provides the interface that a personal-machine is mutual, will use it when this mechanical hand needs debugging and maintenance when. Certainly, when production line has time-out when, it is also desirable to artificial stopping and starting.All of hand push button will be set in control On panel.

This mechanical hand has needed feeding within each cycle, has entered next station, overturns workpiece, returns to 4 masters of initial point Want step,

Effective important technological parameters as the present invention

1. grab weight: 250N

2. degree of freedom: 4

3. coordinate form: circular cylindrical coordinate

4. arm motion parameter

Motion title	Symbol	Stroke range	Speed
				Flexible	X	500mm	Less than 300mm/s
Lifting	Z	330mm	Less than 80mm/s
				Revolution	ψ	0°~210°	Less than 70 (°)/s

5. wrist parameter

Motion title	Symbol	Stroke range	Speed
				Revolution	ω	0°~180°	Less than 90 (°)/s

6. fingerhold scope: bar, diameter 65 ~ 85mm.

7. location mode: point position control

8. type of drive: hydraulic pressure (medium low pressure system)

9. positioning precision: ± 3mm

10. control mode: PLC controls

Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although reference The present invention has been described in detail by previous embodiment, it will be understood by those within the art that: it still can be right Technical scheme described in previous embodiment is modified, or wherein portion of techniques feature is carried out equivalent；As this Multiple technical schemes of the present invention are combined being apparent from by skilled person.And these amendments or replacement, and The essence not making appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme.

Claims

1. the circular cylindrical coordinate industry mechanical arm with wrist revolution hydraulic control module, it is characterised in that: include along Z-direction liter Fall arrange fuselage lowering or hoisting gear (1), along W to revolution be arranged on fuselage lowering or hoisting gear (1) upper end arm slewing equipment (2), The arm link (3) being arranged on arm slewing equipment (2) upper end, the arm being fixedly installed on arm link (3) left side are stretched Contracting rear support (4), be fixedly installed on the arm at arm link (3) middle part flexible in bearing (5), be fixedly installed on arm and connect Bearing (6) before the arm on frame (3) right side is flexible, the arm retractor device (7) being arranged on arm link (3) to flexible along X, It is arranged on the wrist slewing equipment (8) of arm retractor device (7) right-hand member along U to revolution, is arranged on wrist slewing equipment (8) right-hand member Grip finger device (9) and hydraulic control system, arm retractor device (7) is installed on arm and stretches rear support (4), arm Before in flexible, bearing (5) and arm stretch on bearing (6)；

Fuselage lowering or hoisting gear (1) includes arm fixed mount (17), is arranged on the adpting flange in the middle part of arm fixed mount (17) lower end (16), it is separately positioned on arm fixed mount (17) lower surface and is positioned at location screw rod fore-stock (13) of adpting flange (16) side With location screw rod after-poppet (14), be arranged on arm fixed mount (17) lower surface and be positioned at adpting flange (16) side, along Z-direction It is installed on location screw rod fore-stock (13) and arm location screw rod guide pin bushing (15) in location screw rod after-poppet (14), wears along Z-direction Arm location screw rod (11) being contained in arm location screw rod guide pin bushing (15) and the hands being arranged on wrist slewing equipment (8) lower end Arm location fixed mount (10)；

Arm stretches under the lower end of rear support (4), the lower end of the flexible middle bearing (5) of arm and the flexible front bearing (6) of arm On end fixing arm fixed mount (17) respectively, arm location potentiometer (12) is sleeved on arm location screw rod (11), and arm is surveyed The right-hand member of position screw rod (11) is fixing with arm location fixed mount (10) to be connected；

Arm retractor device (7) includes that two ends are installed on arm respectively and stretch in rear support (4) middle bearing (5) flexible with arm Arm stretch cylinder sleeve (20), along X to being arranged on arm telescopic piston rod (18) that arm stretches in cylinder sleeve (20), being arranged on arm Arm telescopic oil cylinder bonnet (28) of flexible cylinder sleeve (20) right-hand member, be arranged on arm telescopic oil cylinder bonnet (28) right side wall and with Dashpot (26) after the corresponding arm of arm telescopic piston rod (18) left end is flexible, it is sleeved in arm telescopic piston rod (18) Arm telescopic piston (19), be arranged on arm stretch cylinder sleeve (20) right-hand member cylinder body drive end bearing bracket (21), be arranged on cylinder body front end On lid (21) left side wall and the arm corresponding with arm telescopic piston rod (18) right-hand member flexible before dashpot (27), be arranged on cylinder Pilot bushing (22) between body drive end bearing bracket (21) and arm telescopic piston rod (18), it is sleeved in arm telescopic piston rod (18) Arm stretch outside framework oil seal (23), be arranged on arm and stretch outside framework oil seal (23) right-hand member and with cylinder body drive end bearing bracket (21) right-hand member even The arm connect stretch liner cap (24), be arranged on the arm of arm telescopic piston rod (18) right-hand member flexible connect journal stirrup (29),

Arm retractable support set (25) that is fixedly installed on cylinder body drive end bearing bracket (21) right-hand member male half coupling, be arranged on arm flexible in Before bearing (5) and arm are flexible arm on bearing (6) stretch cylinder body fairlead (31), stretch along X to being movably arranged on arm Arm in contracting cylinder body fairlead (31) endoporus stretch cylinder shell (32), be fixedly installed on arm and stretch in cylinder shell (32) Arm cylinder body adapter sleeve (33), be fixedly installed on arm cylinder body adapter sleeve (33) left end wrist oil circuit oil-feed tail-hood (34), Be fixedly installed on arm stretch cylinder shell (32) right-hand member rotary cylinder bonnet (39), be arranged on rotary cylinder bonnet (39) right-hand member Revolution location leads to oil inner stopper (40), is arranged between the logical oily inner stopper (40) in revolution location and wrist oil circuit oil-feed tail-hood (34) Wrist oil path in oil cylinder (37), be arranged on arm flexible before arm on bearing (6) stretch front support lining (30), be arranged on hands Arm stretch front support lining (30) with on arm retractable support set (25) telescopic oil cylinder slide drive inner sleeve (36), be arranged on and stretch Contracting oil cylinder slides and drives the telescopic slide in inner sleeve (36) to drive overcoat (35) and plug-in mounting to be arranged on arm flexible connection journal stirrup (29) arm and between rotary cylinder bonnet (39) stretches alignment pin (38),

The arm outside framework oil seal (23) that stretches is positioned at pilot bushing (22) right side, and the arm outside framework oil seal (23) that stretches is positioned at cylinder body front end In the inner stopper of lid (21) right side, arm retractable support set (25) is arranged on the flexible middle bearing (5) of arm, arm location fixed mount (10) rotary cylinder bonnet (39) lower end it is fixedly installed on；

Wrist slewing equipment (8) includes the wrist rotary piston bar that left end is arranged in revolution location logical oil inner stopper (40) (48), left end and rotary cylinder bonnet (39) right-hand member are fixing be connected wrist rotary cylinder after fix seat (41), be fixedly installed on wrist and return Fix the wrist rotary cylinder of seat (41) right-hand member after turning cylinder to fix housing (42) and wrist rotary cylinder to fix housing (42) right side solid The fixed wrist connected rotates right aling cap (43), is separately positioned on wrist rotary cylinder and fixes housing (42) and wrist rotary piston bar (48) the wrist revolution between guides arc block (44) arc block (46) fixing with wrist revolution, is arranged on the fixing arc of wrist revolution Shape block (46) and wrist rotary cylinder are fixed wrist rotary sealing pad (65) between housing (42), are arranged on wrist revolution guiding arc Wrist between shape block (44) and wrist rotary piston bar (48) is turned round connecting key (45), is arranged on wrist rotation right aling cap (43) Adpting flange seat (53) before the wrist of right-hand member, it is arranged on wrist front support end cap (55) of adpting flange seat (53) right-hand member before wrist And wrist intermediate supports set (54) being arranged on before wrist between adpting flange seat (53) and wrist front support end cap (55),

Fix seat (41) after wrist rotary cylinder, wrist rotary cylinder fixes housing (42) and wrist rotates right aling cap (43) and passes through spiral shell Tether and connect and pass through wrist support alignment pin (47) location, after the left end of the fixing arc block (46) of wrist revolution and wrist rotary cylinder Fixing seat (41) is bolted and is positioned by alignment pin, and the right-hand member in wrist rotary piston bar (48) is provided with finger clamp Locking buffering groove (52), is provided with connection grip finger dashpot (52) and wrist oil path in oil cylinder in wrist rotary piston bar (48) (37) pipeline, fixes after wrist rotary piston bar (48) and wrist rotary cylinder and is provided with deep groove ball bearing between seat (41), Rotate in wrist rotary piston bar (48) and wrist and be provided with deep groove ball bearing, at wrist rotary piston bar between right aling cap (43) (48) being provided with the locking nut for carrying on the back tight deep groove ball bearing on, wrist revolution guides arc block (44) and drives wrist revolution to live Stopper rod (48) rotates and arranges, and is provided with arc and leads to oil groove in wrist revolution guiding arc block (44)；

Grip finger device (9) includes the grip finger piston rod that left end is arranged in wrist rotary piston bar (48) inner stopper (50), it is arranged on wrist telescopic piston set (51) of grip finger piston rod (50) left end, is sleeved on grip finger piston rod (50) finger back-moving spring (49) on, to be sleeved on grip finger piston rod (50) upper and be arranged on wrist front support end cap (55) On grip finger outside framework oil seal (56), be arranged on the clamping support plate (64) of wrist front support end cap (55) right-hand member, be arranged on hands Refer to clamping piston bar (50) right-hand member and clamping support plate (64) upper slide grip finger push pedal (63), two be symmetrical arranged and left Hold the rear finger (62) being respectively hinged in grip finger push pedal (63), by hinging pin shaft (60) and corresponding rear finger (62) right side Hold hinged front finger (61), be arranged on corresponding before finger (61) middle part and the fulcrum cylinder clamped between support plate (64) right-hand member Sell (59) and be arranged on corresponding front finger (61) right-hand member and be used for clamping the finger fingertip (58) of block (57)；

Finger back-moving spring (49) is arranged on before wrist telescopic piston set (51) and wrist between adpting flange seat (53),

Arm slewing equipment (2) include arm revolution upper flange seat (71) that upper end and adpting flange (16) be bolted, Fix under arm rotary cylinder shell (70) and arm rotary cylinder shell (70) being connected with arm revolution upper flange seat (71) lower end Fixing arm rotary cylinder adapter sleeve (69) connected of end fixes the arm revolution being connected with arm rotary cylinder adapter sleeve (69) lower end Cylinder lower cover (68), sequentially pass through arm revolution upper flange seat (71), arm rotary cylinder shell (70), arm rotary cylinder along Z-direction even The fuselage lifting piston rod (90) of female connector (69) and arm rotary cylinder lower cover (68), it is arranged on fuselage lifting piston rod (90) and hands The sealing ring of revolution of arm cylinder lower cover (68), it is arranged between fuselage lifting piston rod (90) and arm rotary cylinder adapter sleeve (69) Taper roll bearing (67), it is arranged on the lifting stop nut (66) of fuselage lifting piston rod (90) upper end, is separately positioned on machine Arm revolution guide pad (75) between body lifting piston rod (90) and arm rotary cylinder shell (70) fixes catch with arm (73), be arranged on arm revolution guide pad (75) with fuselage lifting piston rod (90) between arm turn round feather key (72) and It is arranged on arm and fixes the abrasive rubber pad (74) of catch (73) and arm rotary cylinder shell (70)；

Fix at arm and be provided with sealing gasket between catch (73) and arm rotary cylinder shell (70), arm fix catch (73) with Arm rotary cylinder shell (70) is bolted and is positioned by alignment pin, and arm revolution guide pad (75) is lived with fuselage lifting Stopper rod (90) is connected by arm revolution feather key (72),

Arm link (3) includes that the lifting being arranged on fuselage lifting piston rod (90) side is fixed seat (77), set along Z-direction activity Lifting location bar (82) put, the lifting position detector (81) being sleeved in lifting location bar (82), it is sleeved on fuselage lifting Lifting housing cylinder body (91) on piston rod (90), it is arranged on the lift cylinders upper connecting base of lifting housing cylinder body (91) upper end (79), be arranged on lift cylinders upper connecting base (79) upper end lift cylinders upper cover (78), be arranged on lift cylinders upper connecting base (79) with Lift cylinders outside framework oil seal (80) between fuselage lifting piston rod (90), the piston being arranged on fuselage lifting piston rod (90) Set, the lifting being arranged on along Z-direction in fuselage lifting piston rod (90) lower end in blind hole guide splined shaft (88), are arranged on lifting and lead To the lifting fairlead (89) between splined shaft (88) and fuselage lifting piston rod (90), it is arranged under lifting housing cylinder body (91) Lift cylinders lower flange seat (87) held, the lifting sending down the fishbone being arranged between lift cylinders lower flange seat (87) and lifting fairlead (89) Frame oil sealing (86), it is arranged on the adpting flange seat (85) of going to the bottom of lift cylinders lower flange seat (87) lower end, is sleeved on lifting fairlead (89) lower end and be arranged under adpting flange seat (85) lower end of going to the bottom locking locknut (84) and be arranged on down locking locknut (84) split pin (83) on,

Lifting location bar (82) is connected by the fixing seat (77) of the second locking nut (76) and lifting, lifting fairlead (89) and machine Body lifting piston rod (90) is fixing to be connected, and lift cylinders lower flange seat (87) is provided with oil through；

Described hydraulic control system include fuel tank (92), filter (93), oil pump (94), motor (95), the first main road (96), Two bypass (97), main road check valves (98), the second main road (99), wrist revolution hydraulic control module (103), relief valve (105), Pressure gauge branch road (106), pressure meter switch (107), pressure indicator (108), off-load branch road (109) and off-load 2/2-way Electromagnetic valve (110)；

Fuel tank (92) is connected with oil pump (94) by filter (93), and motor (95) drives oil pump (94) to rotate；

Oil pump (94) divides two-way after the first main road (96), and a road connects with main road check valve (98)；Separately lead up to second Bypass (97) Hou Fen tri-tunnel, the first via returns fuel tank (92) by relief valve (105), and the second tunnel leads to through Pressure gauge branch road (106) Excess pressure table switch (107) connects with pressure indicator (108), and the 3rd tunnel is by off-load branch road (109) and off-load 2/2-way The oil-in connection of electromagnetic valve (110), the oil-out of off-load 2/2-way electromagnetic valve (110) connects with fuel tank (92)；

Main road check valve (98) is connected with wrist revolution hydraulic control module (103) by the second main road (99)；

Wrist revolution hydraulic control module (103) includes that wrist slewing equipment (8), wrist revolution oil-feed branch road (141), wrist are returned Rotate into oil choke valve (142), wrist revolution three position four-way electromagnetic valve (143), wrist turns round the first branch (144), wrist is turned round Second branch (145), wrist turn round fuel-displaced branch road (146), wrist turns round fuel-displaced choke valve (147) and wrist revolution fuel-displaced two Position two three-way electromagnetic valves (148)；

Second main road (99) and wrist revolution oil-feed branch road (141) connects, wrist turn round oil-feed branch road (141) through wrist turn round into Oil choke valve (142) connects with the first import d1 of wrist revolution three position four-way electromagnetic valve (143), wrist revolution 3-position 4-way electricity First outlet d2 of magnet valve (143) turns round the first branch (144) and connects with wrist, and wrist turns round the first branch (144) and wrist One oil cylinder cavity connection of slewing equipment (8), another oil cylinder cavity of wrist slewing equipment (8) and wrist turn round the second branch (145) connecting, wrist is turned round the second branch (145) and is connected with the second outlet d4 of wrist revolution three position four-way electromagnetic valve (143), Second import d3 of wrist revolution three position four-way electromagnetic valve (143) turns round fuel-displaced branch road (146) with wrist and connects, and wrist is turned round out Oil branch road (146) point two-way, turns round fuel-displaced choke valve (147) by wrist respectively and wrist turns round fuel-displaced 2/2-way electromagnetism Valve (148) returns fuel tank (92).