CN106735394A - A kind of dual sided porous drilling hydraulic system of modular machine tool - Google Patents
A kind of dual sided porous drilling hydraulic system of modular machine tool Download PDFInfo
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- CN106735394A CN106735394A CN201611253130.1A CN201611253130A CN106735394A CN 106735394 A CN106735394 A CN 106735394A CN 201611253130 A CN201611253130 A CN 201611253130A CN 106735394 A CN106735394 A CN 106735394A
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/02—Use of a particular power source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, two slide unit hydraulic systems include left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and Speed changeover circuit and pressure control loop.The invention provides the two-sided processing work that a kind of dual sided porous drilling hydraulic system of modular machine tool can simultaneously synchronously complete workpiece, the drilling of workpiece is carried out, it is possible to ensure the required precision when drilling works, complete the working cycles that F.F. work enters rewind.The efficiency of work pieces process in streamline is improve, while reducing the amount of labour of workman.The hydraulic system structure is simple, work speed differs larger situation with F.F., rewind speeds in adapting to building-block machine, by the reasonable design and the suitable Hydraulic Elements of selection and hydraulic circuit of the hydraulic system, the total flow demand of hydraulic oil is reduced, possesses the stability under certain speed adjustable range and low-speed running.
Description
Technical field
The present invention relates to a kind of dual sided porous drilling hydraulic system of modular machine tool, belong to technical field of hydraulic pressure.
Background technology
Be operated using hydraulic system in First meaning in the world be 1795 Englishman create be with water
The hydraulic press of medium, after by more than 100 years development oil just instead of water as working media.Hydraulic drive is to be with liquid
Working media, the mechanical energy of prime mover is converted to the pressure energy of liquid by drive device, then by pipeline, hydraulic control
And adjusting means etc., by performs device, the pressure energy of liquid being converted into mechanical energy, driving load realizes straight line or revolution fortune
It is dynamic.Hydraulic system is that the pressure using liquid, the change by sealed volume realize that power is transmitted.
Used as an emerging technology, by the middle of various countries' extensive utilization to modern industry, it passes through liquid for hydraulic drive
The conversion of pressure energy realize the transmission of energy, compared to the general simpler convenience of machine driving.The protrusion of hydraulic system
Advantage causes that its application on building-block machine is more and more extensive, the characteristics of with bigger energy is discharged with small size.In group
In the linear motion of conjunction lathe executive item, using hydraulic drive than the general simpler convenience of machine driving.Hydraulic drive system
System can generally complete the conversion of power and motion, such as it is powerful that the large scale equipment in building industry is required for hydraulic system to provide
Power.Rational hydraulic system can provide the power of cutting to building-block machine, can be simultaneously reached the purpose of low energy consumption so that work
People's is simple to operate.
The content of the invention
Purpose：In order to overcome the above not enough, it is considered to the demand of reality, the invention provides a kind of dual sided porous drilling
Hydraulic system of modular machine tool, can be processed to the two-sided of workpiece simultaneously, realize that F.F.-work enters the-working cycles of rewind, can
To improve the efficiency of work pieces process, facilitate operative and reduce the amount of labour, and ensure that the precision of work pieces process.
Technical scheme is as follows：
A kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, two slide unit hydraulic systems include
Left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and Speed changeover circuit and Stress control are returned
Road, wherein,
The left speed control loop includes hydraulic cylinder, pressure switch and single direction stroke speed adjusting valve, the rodless cavity end of the hydraulic cylinder
One end of pressure switch and single direction stroke speed adjusting valve is connected respectively, and the other end of the single direction stroke speed adjusting valve connects left commutation
And Speed changeover circuit, the hydraulic cylinder rod chamber end connects left commutation and Speed changeover circuit, the left speed control loop and the right side
Speed control loop structure is identical；
The left commutation and Speed changeover circuit include 3 position-5 way magnetic valve, the first check valve, guide type sequence valve and back pressure
Valve, the 3 position-5 way magnetic valve has three operating positions and five hydraulic fluid ports, the 3 position-5 way magnetic valve in middle position, first
Hydraulic fluid port connects single direction stroke speed adjusting valve and the first check valve oil-out respectively, and the first check valve oil inlet connects back pressure respectively
One end of valve and the 5th hydraulic fluid port of 3 position-5 way magnetic valve；Second hydraulic fluid port connection liquid cylinder pressure of the 3 position-5 way magnetic valve has
Rod cavity end；The 3rd hydraulic fluid port connection fuel tank of the 3 position-5 way magnetic valve；The 4th hydraulic fluid port connection of the 3 position-5 way magnetic valve
Pressure control loop；The described hydraulic fluid port of 3 position-5 way magnetic valve the 5th connection counterbalance valve one end, the counterbalance valve other end connection is first
Conduction sequence valve, the guide type sequence valve connects fuel tank, and the left commutation is changed with Speed changeover circuit and right commutation and speed
Take back line structure identical；
The pressure control loop includes the first plunger displacement pump, the second plunger displacement pump, first throttle valve, second throttle, second unidirectional
Valve, the 3rd check valve, the first overflow valve, the second overflow valve, two-position two-way solenoid valve and limit seam type oil filter, the limit gap type filter
Oily device connects one end of the first plunger displacement pump and the second plunger displacement pump respectively, and the other end of first plunger displacement pump connects the first overflow
Valve, second check valve and first throttle valve are connected in parallel on mutually the 4th hydraulic fluid port and the first post of left commutation and Speed changeover circuit
Between plug pump；The other end of second plunger displacement pump connects the oil inlet and the second overflow valve of the 3rd check valve, described respectively
The oil-out of three check valves connects the 4th hydraulic fluid port and one end of second throttle of right commutation and Speed changeover circuit respectively, described
The other end of second throttle connects the oil inlet of the second check valve, the second overflow valve other end and two-position two-way solenoid valve
One end connects, and the other end of the two-position two-way solenoid valve is connected with fuel tank, first overflow valve, the second overflow valve and limit gap
Formula oil filter is connected with a fuel tank respectively.
Preferably, the single direction stroke speed adjusting valve includes stroke valve, the 4th check valve and flow speed control valve, and three is in parallel even
Connect, the rodless cavity end of the oil inlet connection liquid cylinder pressure of the 4th check valve, the first of oil-out connection 3 position-5 way magnetic valve
Hydraulic fluid port.
Preferably, first plunger displacement pump and the second plunger displacement pump are respectively high pressure low discharge quantitative plunger pump and low pressure stream high
Amount quantitative plunger pump.
Preferably, the left and right slide unit hydraulic system is separately positioned on horizontal slide rail.
Beneficial effect：The present invention provides a kind of dual sided porous drilling hydraulic system of modular machine tool, can simultaneously synchronously complete work
The two-sided processing work of part, carries out the drilling of workpiece, it is possible to ensure the required precision when drilling works, and completes F.F.-work
Enter-the working cycles of rewind.The efficiency of work pieces process in streamline is improve, while reducing the amount of labour of workman.Additionally, should
Hydraulic system structure is simple, and work speed differs larger situation with F.F., rewind speeds in adapting to building-block machine, by the liquid
The reasonable design and the suitable Hydraulic Elements of selection and hydraulic circuit of pressure system, reduce the total flow demand of hydraulic oil, have
For the stability under speed adjustable range and low-speed running necessarily.
Brief description of the drawings
Fig. 1 is the operating mode schematic diagram of left and right slide unit hydraulic system；
Fig. 2 is the hydraulic system principle figure of the inventive method；
Fig. 3 is the speed control loop figure of hydraulic system；
Commutations and Speed changeover circuit figure of the Fig. 4 for hydraulic system；
Fig. 5 is the pressure control loop figure of hydraulic system；
In figure：Hydraulic cylinder 1, pressure switch 2, single direction stroke speed adjusting valve 3, stroke valve 3-1, the 4th check valve 3-2, flow speed control valve 3-
3rd, 3 position-5 way magnetic valve 4, the first check valve 5, counterbalance valve 6, guide type sequence valve 7, the first plunger displacement pump 8, the second plunger displacement pump 9,
First throttle valve 10-1, second throttle 10-2, the second check valve 11-1, the 3rd check valve 11-2, the first overflow valve 12-1,
Two overflow valve 12-2, two-position two-way solenoid valve 13, limit seam type oil filter 14, fuel tank 15.
Specific embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, below in conjunction with the application reality
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to the application protection
Scope.
As Figure 1-5, a kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, two
Slide unit hydraulic system includes that left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and speed changing-over are returned
Road and pressure control loop, wherein,
The left speed control loop include hydraulic cylinder 1, pressure switch 2 and single direction stroke speed adjusting valve 3, the hydraulic cylinder 1 without bar
Chamber end connects one end of pressure switch 2 and single direction stroke speed adjusting valve 3 respectively, and the other end of the single direction stroke speed adjusting valve 3 connects
Left commutation and Speed changeover circuit are connect, the rod chamber end of the hydraulic cylinder 1 connects left commutation and Speed changeover circuit, the left speed governing
Loop is identical with right speed control loop structure；
The left commutation and Speed changeover circuit include 3 position-5 way magnetic valve 4, the first check valve 5, guide type sequence valve 7 and the back of the body
Pressure valve 6, the 3 position-5 way magnetic valve 4 has three operating positions and five hydraulic fluid ports, and the 3 position-5 way magnetic valve 4 is in middle position
When, the first hydraulic fluid port connects the oil-out of 3 and first check valve of single direction stroke speed adjusting valve 5, the oil inlet of the first check valve 5 point respectively
Not Lian Jie counterbalance valve 6 one end and the 5th hydraulic fluid port of 3 position-5 way magnetic valve 4；Second hydraulic fluid port of the 3 position-5 way magnetic valve 4
The rod chamber end of connection liquid cylinder pressure 1；The 3rd hydraulic fluid port connection fuel tank 15 of the 3 position-5 way magnetic valve 4；The 3 position-5 way electricity
The 4th hydraulic fluid port connection pressure control loop of magnet valve 4；The described hydraulic fluid port of 3 position-5 way magnetic valve 4 the 5th connection counterbalance valve 6 one end, institute
The other end of counterbalance valve 6 connection guide type sequence valve 7 is stated, the connection fuel tank of the guide type sequence valve 7, the left commutation and speed are changed
Take back road identical with Speed changeover circuit structure with right commutation；
The pressure control loop includes the first plunger displacement pump 8, the second plunger displacement pump 9, first throttle valve 10-1, second throttle 10-
2nd, the second check valve 11-1, the 3rd check valve 11-2, the first overflow valve 12-1, the second overflow valve 12-2, two-position two-way solenoid valve
13 connect one end of the first plunger displacement pump 8 and the second plunger displacement pump 9 respectively with limit seam type oil filter 14, the limit seam type oil filter 14,
The other end of first plunger displacement pump 8 connects the first overflow valve 12-1, the second check valve 11-1 and first throttle valve 10-1
It is connected in parallel on mutually between left commutation and the 4th hydraulic fluid port and the first plunger displacement pump 8 of Speed changeover circuit；Second plunger displacement pump 9 it is another
One end connects the oil inlet and the second overflow valve 12-2 of the 3rd check valve 11-2, the oil-out of the 3rd check valve 11-2 respectively
The 4th hydraulic fluid port and one end of second throttle 10-2 of right commutation and Speed changeover circuit, the second throttle are connected respectively
The other end of 10-2 connects the oil inlet of the second check valve 11-1, the second overflow valve 12-2 other ends and bi-bit bi-pass electromagnetism
The one end of valve 13 connects, and the other end of the two-position two-way solenoid valve 13 is connected with fuel tank 15, the first overflow valve 12-1, second
Overflow valve 12-2 and limit seam type oil filter 14 are connected with a fuel tank 15 respectively.
Preferably, the single direction stroke speed adjusting valve 3 includes stroke valve 3-1, the 4th check valve 3-2 and flow speed control valve 3-3, and three
Person is connected in parallel, the rodless cavity end of the oil inlet connection liquid cylinder pressure 1 of the 4th check valve 3-2, oil-out connection 3 position-5 way
First hydraulic fluid port of magnetic valve 4.
Preferably, the plunger displacement pump 9 of first plunger displacement pump 8 and second is respectively high pressure low discharge quantitative plunger pump and low pressure is high
Flow quantitative plunger pump.
Preferably, the left and right slide unit hydraulic system is separately positioned on horizontal slide rail.
The required work for completing of dual sided porous drilling hydraulic system of modular machine tool of the invention is two-sided while being cut
Cut work, job specification is identical, i.e. the required cutting force for completing of left and right slide unit is identical, F.F., work are entered, the stroke of rewind and
The speed that correspondence is required is identical, completes F.F.-work and enters-the working cycles of rewind.Therefore, slide unit hydraulic system in left and right has identical
Working condition chart, as shown in figure 1, solid line P represents the change curve of input power, the change that short dash line P1 represents oil-feed cavity pressure is bent
Line, dotted line q long is the change curve of input flow rate, more than abscissa is respectively input power, oil-feed cavity pressure and input flow rate
Enter the change curve in stage in F.F. and work, be the change curve in rewind stage below abscissa.
Design principle of the invention is as follows：
It is illustrated in figure 2 the hydraulic system principle figure of the offer of the present patent application, it is possible to achieve the dual sided porous drilling work of workpiece
Make, synchronously complete F.F.-work and enter-the working cycles of rewind, there is the drilling building-block machine certain speed adjustable range and low speed to transport
Stability under turning.In order to be better understood from the hydraulic system principle figure of the present patent application, by Fig. 2 hydraulic system principle figures point
It is following three loop feature to solve：
The speed control loop of hydraulic system is illustrated in figure 3, is work in the cutting of lathe to ensure the required precision of workpiece cutting
It is relatively low to enter the speed in stage and the efficiency of transmission, therefore selects throttle grverning, lathe when boring work is carried out, its
Cutting force is positive load, while the stabilization of speed and cutting force change are smaller during in order to cut, can select flow speed control valve import
The mode of throttle grverning.Due to drilling machine in F.F. speed, speed is slower when work is entered, and being converted to work in F.F. entered
Cheng Zhong, it is contemplated that reduce compression shock, single direction stroke speed adjusting valve can be selected to change connection speed, the loop by pressure after
Electrical equipment sends commutation signal and can reach required precision to final position, and hydraulic cylinder is differential connection mode during F.F.,
Can reach the purpose of quick back and forth movement；
Commutation and the Speed changeover circuit figure of hydraulic system are illustrated in figure 4, reversal valve is 3 position-5 way magnetic valve.Due to fast
When entering, in-line is communicated with oil return line, and now oil cannot pass through counterbalance valve and flow back to fuel tank, so a settable pilot-operated type is suitable
Sequence valve is installed in the loop.Circuit pressure when guide type sequence valve is because of F.F. is low without opening, now the oil of oil return line
Can converge with in-line by check valve.Be converted to after work enters work in hydraulic system F.F. work, now in-line and oil return
Road will work independently, it is necessary to separated, and oil return is by flowing back to fuel tank after counterbalance valve, so needing to set a check valve.Turning
After entering for work, now stroke valve open circuit, system pressure is raised under speed governing valve action, and pilot-operated type pilot sequencing valve is opened, oil return
Fuel tank is flowed back to through counterbalance valve, while counterbalance valve can strengthen stability when hydraulic cylinder runs, since then simultaneously, hydraulic system is unidirectional
Form high pressure to allow hydraulic cylinder to reach the demand of normal work after valve cut-out oil return line.
If Fig. 5 is pressure control loop, two slide units of lathe are used when work is entered and do not interfere with each other loop, therefore are selected
Double pump oil supply loop, high pressure low discharge quantitative plunger pump provides hydraulic oil for two slide unit making when work is entered for hydraulic system
With low-pressure high-flowrate quantitative plunger pump can realize two quick motions of slide unit.Two slide unit work can not be interfered with each other, institute
With high pressure low discharge quantitative plunger pump, low-pressure high-flowrate quantitative plunger pump oil not Tong Guo first throttle valve, second throttle,
Second check valve, the 3rd check valve enter their system.Meanwhile, overflow valve can be set, high pressure low discharge is determined after pressure regulation
Amount plunger displacement pump enters the loop on both sides, and high pressure low discharge quantitative plunger oil pump feed when work is entered, low-pressure high-flowrate quantitative plunger pump is unloaded
Lotus.
Workflow of the invention is as follows：
It is as shown in table 1 the hydraulic buttery valve sequence of movement table of hydraulic system, can clearly represents hydraulic system in different works
Make the stage such as：F.F., work are entered, rewind and when stop and original position stop, the sequence of movement of electromagnet, wherein+number be expressed as beating
Open ,-number be expressed as closing.
Table 1
When lathe be in F.F. state when, two-position two-way solenoid valve is closed, the 2DT ends of left slide unit hydraulic system and
The 4DT ends of right slide unit hydraulic system are opened, and the 5DT ends of the 3DT ends of left slide unit hydraulic system and right slide unit hydraulic system are closed,
Stroke valve is closed；Hydraulic oil flows to 3 position-5 way magnetic valve, the left position work of 3 position-5 way magnetic valve, liquid by pressure control loop
Press oil and hydraulic cylinder rodless cavity is directly reached by the stroke valve in speed control loop through 3 position-5 way magnetic valve left position, now hydraulic cylinder
The hydraulic oil of rod chamber enters in-line by check valve again after entering oil return line part through the left position of 3 position-5 way magnetic valve, now
Guide type sequence valve is not opened, and saves oil consumption.
When lathe enters state in work, two-position two-way solenoid valve is in open mode, the 2DT ends of left slide unit hydraulic system
And the 4DT ends of right slide unit hydraulic system are opened, the 5DT ends of the 3DT ends of left slide unit hydraulic system and right slide unit system are closed,
Stroke valve is opened；Now high pressure low discharge quantitative plunger oil pump feed, low-pressure high-flowrate quantitative plunger pump off-load, hydraulic oil is by adjusting
Flow speed control valve in fast loop enters in hydraulic cylinder rodless cavity, and the hydraulic oil in hydraulic cylinder rod chamber is left through 3 position-5 way magnetic valve
Position enters fuel tank into oil return line by counterbalance valve and guide type sequence valve.
When lathe is in resting state, two-position two-way solenoid valve is in open mode, the 2DT ends of left slide unit hydraulic system
And the 4DT ends of right slide unit hydraulic system are opened, the 5DT ends of the 3DT ends of left slide unit hydraulic system and right slide unit hydraulic system
Close, stroke valve is opened；Now hydraulic cylinder travel reaches cutting depth requirement, and pressure switch sends commutation signal.
When lathe is in fast-rewinding state, two-position two-way solenoid valve is closed, the 2DT ends of left slide unit hydraulic system
And the 4DT ends of right slide unit hydraulic system are closed, the 5DT ends of the 3DT ends of left slide unit hydraulic system and right slide unit hydraulic system
Open, stroke valve is closed；The now right position work of 3 position-5 way magnetic valve, hydraulic oil is flowed directly into through the right position of 3 position-5 way magnetic valve
Hydraulic cylinder rod chamber, the hydraulic oil in hydraulic cylinder rodless cavity flows to 3 position-5 way electricity through the check valve or stroke valve in speed control loop
Magnet valve returns to fuel tank behind right position.
When hydraulic cylinder falls back on terminal soon, pressure rises, and pressure switch is opened, and sending electric signal opens 1DT.That is machine
When bed is in original position stop state, two-position two-way solenoid valve is in open mode, plays Unloading Effect, 3 position-5 way magnetic valve and row
Journey valve is in closed mode, is stopped.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (4)
1. a kind of dual sided porous drilling hydraulic system of modular machine tool, including left and right slide unit hydraulic system, it is characterised in that two slide
Platform hydraulic system includes left speed control loop, right speed control loop, left commutation and Speed changeover circuit, right commutation and Speed changeover circuit
And pressure control loop, wherein,
The left speed control loop includes hydraulic cylinder, pressure switch and single direction stroke speed adjusting valve, the rodless cavity end of the hydraulic cylinder
One end of pressure switch and single direction stroke speed adjusting valve is connected respectively, and the other end of the single direction stroke speed adjusting valve connects left commutation
And Speed changeover circuit, the hydraulic cylinder rod chamber end connects left commutation and Speed changeover circuit, the left speed control loop and the right side
Speed control loop structure is identical；
The left commutation and Speed changeover circuit include 3 position-5 way magnetic valve, the first check valve, guide type sequence valve and back pressure
Valve, the 3 position-5 way magnetic valve has three operating positions and five hydraulic fluid ports, the 3 position-5 way magnetic valve in middle position, first
Hydraulic fluid port connects single direction stroke speed adjusting valve and the first check valve oil-out respectively, and the first check valve oil inlet connects back pressure respectively
One end of valve and the 5th hydraulic fluid port of 3 position-5 way magnetic valve；Second hydraulic fluid port connection liquid cylinder pressure of the 3 position-5 way magnetic valve has
Rod cavity end；The 3rd hydraulic fluid port connection fuel tank of the 3 position-5 way magnetic valve；The 4th hydraulic fluid port connection of the 3 position-5 way magnetic valve
Pressure control loop；The described hydraulic fluid port of 3 position-5 way magnetic valve the 5th connection counterbalance valve one end, the counterbalance valve other end connection is first
Conduction sequence valve, the guide type sequence valve connects fuel tank, and the left commutation is changed with Speed changeover circuit and right commutation and speed
Take back line structure identical；
The pressure control loop includes the first plunger displacement pump, the second plunger displacement pump, first throttle valve, second throttle, second unidirectional
Valve, the 3rd check valve, the first overflow valve, the second overflow valve, two-position two-way solenoid valve and limit seam type oil filter, the limit gap type filter
Oily device connects one end of the first plunger displacement pump and the second plunger displacement pump respectively, and the other end of first plunger displacement pump connects the first overflow
Valve, second check valve and first throttle valve are connected in parallel on mutually the 4th hydraulic fluid port and the first post of left commutation and Speed changeover circuit
Between plug pump；The other end of second plunger displacement pump connects the oil inlet and the second overflow valve of the 3rd check valve, described respectively
The oil-out of three check valves connects the 4th hydraulic fluid port and one end of second throttle of right commutation and Speed changeover circuit respectively, described
The other end of second throttle connects the oil inlet of the second check valve, the second overflow valve other end and two-position two-way solenoid valve
One end connects, and the other end of the two-position two-way solenoid valve is connected with fuel tank, first overflow valve, the second overflow valve and limit gap
Formula oil filter is connected with a fuel tank respectively.
2. a kind of dual sided porous drilling hydraulic system of modular machine tool according to claim 1, it is characterised in that described unidirectional
Stroke speed adjusting valve includes stroke valve, the 4th check valve and flow speed control valve, and three is connected in parallel, the oil inlet of the 4th check valve
The rodless cavity end of connection liquid cylinder pressure, oil-out connects the first hydraulic fluid port of 3 position-5 way magnetic valve.
3. a kind of dual sided porous drilling hydraulic system of modular machine tool according to claim 1, it is characterised in that described first
Plunger displacement pump and the second plunger displacement pump are respectively high pressure low discharge quantitative plunger pump and low-pressure high-flowrate quantitative plunger pump.
4. a kind of dual sided porous drilling hydraulic system of modular machine tool according to claim 1, it is characterised in that it is described it is left,
Right slide unit hydraulic system is separately positioned on horizontal slide rail.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253130.1A CN106735394B (en) | 2016-12-30 | 2016-12-30 | A kind of dual sided porous drilling hydraulic system of modular machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611253130.1A CN106735394B (en) | 2016-12-30 | 2016-12-30 | A kind of dual sided porous drilling hydraulic system of modular machine tool |
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| CN106735394A true CN106735394A (en) | 2017-05-31 |
| CN106735394B CN106735394B (en) | 2018-09-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135980A (en) * | 2020-02-27 | 2020-05-12 | 江苏君安新材料科技有限公司 | Accurate thick hydraulic pressure roller of scribbling scribbles device |
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| CN111135980A (en) * | 2020-02-27 | 2020-05-12 | 江苏君安新材料科技有限公司 | Accurate thick hydraulic pressure roller of scribbling scribbles device |
| CN111135980B (en) * | 2020-02-27 | 2024-05-24 | 江苏君安新材料科技有限公司 | Accurate thick hydraulic pressure roller coat device that scribbles |
| CN114346700A (en) * | 2022-01-17 | 2022-04-15 | 上海赛卡精密机械有限公司 | Intelligent numerical control machine ram hydraulic balance system and numerical control machine |
| CN114346700B (en) * | 2022-01-17 | 2023-09-26 | 上海赛卡精密机械有限公司 | Intelligent numerical control machine ram hydraulic balance system and numerical control machine |
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