CN105382624A - Double-hydraulic cylinder counterweight two-shaft electric turntable mechanism and method thereof for compensating overturning moment - Google Patents
Double-hydraulic cylinder counterweight two-shaft electric turntable mechanism and method thereof for compensating overturning moment Download PDFInfo
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- CN105382624A CN105382624A CN201510964080.7A CN201510964080A CN105382624A CN 105382624 A CN105382624 A CN 105382624A CN 201510964080 A CN201510964080 A CN 201510964080A CN 105382624 A CN105382624 A CN 105382624A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
- B23Q11/0017—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts
- B23Q11/0021—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts the elements being rotating or pivoting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/267—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to prevent skewness between the relatively slidable members
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Abstract
The invention provides a double-hydraulic cylinder counterweight two-shaft electric turntable mechanism and a method thereof for compensating overturning moment; the turntable overturning moment influence is reduced or reasonably compensated through a double-hydraulic cylinder counterweight mechanical balance mechanism; the mechanical balance mechanism comprises a balance oil cylinder I and a balance oil cylinder II, wherein one ends of the balance oil cylinder I and the balance oil cylinder II are fixed below a shaft A of a rotating shaft of a turntable generating the overturning moment; when the turntable rotates around the shaft A of the rotating shaft, cylinder bodies of the balance oil cylinder I and the balance oil cylinder II rotate around oil cylinder lug rings along with the swing of the turntable; the hydraulic control system adjusts the pressure of the balance oil cylinder I and the balance oil cylinder II to realize the compensation of the overturning moment of the turntable; the mechanism is simple in structure, easy to realize and helpful to stably operate the turntable with high precision; and meanwhile, a machine tool can select a driving motor with lower torque, so that the motor cost and power consumption are reduced, the heating and the heat deformation are reduced, the processing precision of the machine tool is improved, and the cost can be reduced.
Description
Technical field
The present invention relates to a kind of diaxon electricity turntable mechanism of double hydraulic cylinder counterweight and compensate the method for tilting moment.
Background technology
Diaxon electricity turntable is the first-selected layout parts of five-axle linkage process equipment, but the tilting moment of swinging axle, be affect the diaxon electricity main cause that turntable realizes high acceleration, high rigidity is steadily processed.Due to the Structure Designing Problem (processing plane is low, ferrous materials dead weight) of turntable, when turntable keeps horizontal stationary, the center of gravity of turntable usually immediately below A axle (as depicted in figs. 1 and 2); When turntable rotates around A axle, tilting moment T will be produced under the effect of turntable self gravitation.
The swing part of cradle-type turntable, below gudgeon, during clamping workpiece, requires that workpiece overlaps with the rotation (A axle) of turntable substantially with the synthesis center of gravity of cradle, can reduce the moment of torsion needed for revolution.At present, turntable tilting moment is on the impact of machine tooling, occur in operating mode below: when lathe normally works, need turntable when A axle rotates and maintains inclination certain angle with processing work, due to the effect of tilting moment, the moment that motor provides is not enough to fixing turntable, turntable can slowly rotate along moment direction, and when institute's gyration is more than A axle tracking error, digital control system can correct the angular error of turntable, turntable is reorientated, forwards within the scope of required angular error.So when the long-time inclination turntable of needs adds man-hour, turntable constantly can repeat said process, impacts machining accuracy.
(1) turntable is around the rotary motion of A axle, during processing work
M motor=M topple+M process+M rotate
(2) turntable maintains inclination certain angle, during processing work around A axle
M motor=M topple+M processing
Wherein, M motor, M topple for fixed value, and the value that M topples is larger, distribute to M processing, moment values that M rotates is less, to the location of turntable and processing more unfavorable.The present invention is by the mechanical balance mechanism of double hydraulic cylinder counterweight, and the impact of reduction or reasonable compensation turntable tilting moment, improves the machining accuracy of this type of lathe, and can reduce costs.
At present, the research specially for turntable tilting moment aspect is fewer at present, and majority studies from the angle of Automated condtrol, and compensate the research of tilting moment from frame for movement angle, also there is not yet.The impact of reduction or reasonable compensation turntable tilting moment can be solved by following approach at present:
(1) method of turntable height is improved.Reducing the distance between turntable center of gravity and power transmission shaft A axle, reducing the acting force arm of turntable self gravitation when deflecting, thus reduce the tilting moment of turntable.Because lathe overall space is limited, after turntable height improves, the activity space of machine tooling cutter can diminish thereupon, brings great inconvenience to processing, and when the quality of workpiece is comparatively large, center is higher, can produce reverse tilting moment again.More seriously, the risk that cutter and processing work and fixture bump against is increased.If this thing happens, loss is very large, and not only easy damage equipment, also can endanger personal safety time serious, so this way is generally infeasible.
(2) method of control system parameter is adjusted.Improve proportionality coefficient P value, to reduce tracking error.Shorten sampling period T, the object improving system accuracy can be reached equally.Reduce or the impact of reasonable compensation turntable tilting moment from the angle of Automated condtrol.Improve proportionality coefficient P value, but this may cause the instability of whole control system.Shorten sampling period T, but from the viewpoint of digital control system precision and system cost, sampling period T should not obtain again too short.
(3) method of the moment of torsion of rotating shaft drive motors is increased.This design measure can increase lathe cost, too increases the power consumption that lathe runs simultaneously, causes unnecessary waste.This design measure can increase lathe cost, too increase simultaneously lathe run power consumption, both uneconomical also not environmentally.
(4) tilting moment is compensated by mechanical device.Adopt the example of mechanical device balance turntable tilting moment, be all in the laboratory research stage at present, just propose corresponding principle and correlation test means.
In sum, the impact of said method reduction or reasonable compensation turntable tilting moment is all impracticable.
Summary of the invention
The technical problem to be solved in the present invention is the dimensional parameters not changing lathe turntable, avoids unnecessary design risk, do not propose high requirement to control system parameter in addition, reserved most automated debug precision is stocked, turntable is not high to the torque demand of torque motor, avoid unnecessary waste, there is provided a kind of structure simple and be easy to realize, the compensation of the tilting moment to cradle-type five-axis machine tool double-swinging angle turntable can be realized, the high-precision and stable contributing to turntable is run, make lathe can select the drive motors that moment of torsion is relatively little simultaneously, reduce cost and the power consumption of motor, reduce heating and thermal deformation, thus the cost of lathe is minimized, and improve machining accuracy, by the mechanical balance mechanism of double hydraulic cylinder counterweight, the impact of reduction or reasonable compensation turntable tilting moment, improve the machining accuracy of lathe, and can reduce costs.
Early stage A-C turntable module adopts servomotor to add worm screw worm gear drive pair and drives, and its shortcoming is that volume is large, and the interference position between electro spindle and turntable is many, causes available radius of turn little, clamping workpiece and machine operation inconvenience.A-B axle turntable up-to-date at present, innovative point embodies a concentrated reflection of raising dynamic property, and increase the available radius of gyration and the aspect such as easy to operate, more novel two turntable structures have " cradle-type " and " Tai Zhongtai " two kinds.The present invention's design is applicable to " cradle-type " A-B axle electricity turntable of big-and-middle-sized specification.Current numerical control five-shaft linkage lathe principal mode be XYZ tri-linear axis lathe in conjunction with two Shaft and NC Machining Test turntables, and two Shaft and NC Machining Test turntable dimensions are based on middle-size and small-size.The present invention is by the mechanical balance mechanism of double hydraulic cylinder counterweight, and the impact of reduction or reasonable compensation turntable tilting moment, is specially adapted to the big-and-middle-sized two Shaft and NC Machining Test turntables of independent research, can improves the machining accuracy of this type of lathe, and can reduce costs.
Turntable tilting moment: in cradle-type five-axis linkage machine tools, when turntable rotates around swinging axle A axle, because the effect of gravity can produce tilting moment, the anglec of rotation is more close to ± 90 °, and the tilting moment of generation is larger.
For solving the problems of the technologies described above, the diaxon electricity turntable mechanism that the invention provides a kind of double hydraulic cylinder counterweight compensates the method for tilting moment, by the mechanical balance mechanism of double hydraulic cylinder counterweight, the impact of reduction or reasonable compensation turntable tilting moment, mechanical balance mechanism comprises balancing cylinder I and balancing cylinder II, wherein one end of balancing cylinder I and balancing cylinder II is fixed on the below of the rotating shaft A axle of the turntable producing tilting moment by end face ball bearing, when turntable rotates around rotating shaft A axle, balancing cylinder I and balancing cylinder II cylinder block are followed the swing of turntable and rotate around oil cylinder, the pressure of hydraulic control system adjustment balancing cylinder I and balancing cylinder II, thus the compensation realized turntable tilting moment.
In such scheme, the pressure of described balancing cylinder I and balancing cylinder II is adjusted by hydraulic control system and keeps constant P value, is subject to a constant balance component F upwards all the time to make turntable.
In such scheme, in turntable motion, the center of gravity G point of turntable, rotating shaft A axle axle center, end face ball bearing articulated position point all the time point-blank,
In such scheme, in turntable motion, the arm of force of center of gravity G is h, one end of balancing cylinder I and balancing cylinder II is fixed on the below of the rotating shaft A axle of the turntable producing tilting moment by end face ball bearing, the arm of force is l, the anglec of rotation of turntable is θ, the tilting moment that center of gravity G produces is Ghsin θ, balancing cylinder I and balancing cylinder II acts on one and center of gravity tilting moment rightabout compensating torque 2Flsin θ on A axle by end face ball bearing, the size of tilting moment and compensating torque, the sine value all with turntable anglec of rotation θ changes.
In such scheme, 2Flsin θ=Ghsin θ when described compensating torque is equal with tilting moment, i.e. F=Gh/2l, can realize the full remuneration to turntable tilting moment, wherein balances component F value can adjust balancing cylinder I and balancing cylinder II pressure realization by hydraulic control system.
In such scheme, CNC digital control system analog output in hydraulic control system, two-position two-way solenoid valve is transported to through amplifier process, thus hydraulic oil is inputted balancing cylinder I and balancing cylinder II with certain pressure by control accumulator, at two-position two-way solenoid valve and placement force switch and electro connecting pressure gauge between balancing cylinder I and balancing cylinder II, convert actual pressure to the signal of telecommunication, and feed back to pressure switch, after CNC digital control system outputs signal and compares, difference is acted on pressure switch, adjustment flows to the command signal of two-position two-way solenoid valve, two-position two-way solenoid valve adjusts controlled quentity controlled variable automatically by accumulator, to eliminate difference, thus control the pressure of whole system, ensure the constant pressure in balancing cylinder I and balancing cylinder II cylinder.
The present invention also provides a kind of diaxon electricity turntable mechanism of double hydraulic cylinder counterweight, turntable body lower part is provided with balancing cylinder I and balancing cylinder II, one end of balancing cylinder I and balancing cylinder II is fixed on the below of rotating shaft A axle by end face ball bearing, the other end of balancing cylinder I and balancing cylinder II is fixed on lathe bed by oil cylinder, the pressure of balancing cylinder I and balancing cylinder II is controlled by hydraulic control system, and described turntable body is also provided with slip oil sealing.
In such scheme, described balancing cylinder I and balancing cylinder II is provided with fuel feed hole and oil outlet, and fuel feed hole is communicated with hydraulic control system with oil outlet.
In such scheme, described balancing cylinder I and balancing cylinder II is symmetrical arranged.
The beneficial effect of technique scheme of the present invention is as follows: provide a kind of diaxon electricity turntable mechanism of double hydraulic cylinder counterweight and compensate the method for tilting moment, not changing the dimensional parameters of lathe turntable, avoid unnecessary design risk, do not propose high requirement to control system parameter in addition, reserved most automated debug precision is stocked, turntable is not high to the torque demand of torque motor, avoid unnecessary waste, there is provided a kind of structure simple and be easy to realize, the compensation of the tilting moment to cradle-type five-axis machine tool double-swinging angle turntable can be realized, the high-precision and stable contributing to turntable is run, make lathe can select the drive motors that moment of torsion is relatively little simultaneously, reduce cost and the power consumption of motor, reduce heating and thermal deformation, thus the cost of lathe is minimized, and improve machining accuracy, by the mechanical balance mechanism of double hydraulic cylinder counterweight, the impact of reduction or reasonable compensation turntable tilting moment, improve the machining accuracy of lathe, and can reduce costs.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art turntable.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is overall structure schematic diagram of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is hydraulic control system schematic diagram of the present invention.
[1: balancing cylinder I, 2: balancing cylinder II, 3: end face ball bearing, 4: oil cylinder, 5: slip oil sealing, 6: hydraulic control system, 7:U type cradles, 8: two-position two-way solenoid valve, 9: accumulator, 10: pressure switch, 11: electro connecting pressure gauge.]
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed to the dimensional parameters not changing lathe turntable, avoid unnecessary design risk, do not propose high requirement to control system parameter in addition, reserved most automated debug precision is stocked, turntable is not high to the torque demand of torque motor, avoid unnecessary waste, there is provided a kind of structure simple and be easy to realize, the compensation of the tilting moment to cradle-type five-axis machine tool double-swinging angle turntable can be realized, the high-precision and stable contributing to turntable is run, make lathe can select the drive motors that moment of torsion is relatively little simultaneously, reduce cost and the power consumption of motor, reduce heating and thermal deformation, thus the cost of lathe is minimized, and improve machining accuracy, by the mechanical balance mechanism of double hydraulic cylinder counterweight, the impact of reduction or reasonable compensation turntable tilting moment, improve the machining accuracy of lathe, and can reduce costs.
Embodiment 1
Embodiments of the invention, a kind of diaxon electricity turntable mechanism of double hydraulic cylinder counterweight compensates the method for tilting moment, by the mechanical balance mechanism of double hydraulic cylinder counterweight, the impact of reduction or reasonable compensation turntable tilting moment, mechanical balance mechanism comprises balancing cylinder I1 and balancing cylinder II2, wherein one end of balancing cylinder I1 and balancing cylinder II2 is fixed on the below of the rotating shaft A axle of the turntable of the U-shaped cradle 7 producing tilting moment by end face ball bearing 3, when U-shaped cradle 7 rotates around rotating shaft A axle, balancing cylinder I1 and balancing cylinder II2 cylinder block are followed the swing of turntable and rotate around oil cylinder 4, hydraulic control system 6 adjusts the pressure of balancing cylinder I1 and balancing cylinder II2, thus the compensation realized turntable tilting moment.
The technical scheme that the present invention optimizes further, the pressure of described balancing cylinder I1 and balancing cylinder II2 is adjusted by hydraulic control system 6 and keeps constant P value, is subject to a constant balance component F upwards all the time to make turntable.
The technical scheme that the present invention optimizes further, in turntable motion, the center of gravity G point of turntable, rotating shaft A axle axle center, end face ball bearing 3 articulated position point all the time point-blank,
The technical scheme that the present invention optimizes further, in turntable motion, the arm of force of center of gravity G is h, one end of balancing cylinder I1 and balancing cylinder II2 is fixed on the below of the rotating shaft A axle of the turntable producing tilting moment by end face ball bearing 3, the arm of force is l, the anglec of rotation of turntable is θ, the tilting moment that center of gravity G produces is Ghsin θ, balancing cylinder I1 and balancing cylinder II2 acts on one and center of gravity tilting moment rightabout compensating torque 2Flsin θ on A axle by end face ball bearing, the size of tilting moment and compensating torque, sine value all with turntable anglec of rotation θ changes.
The technical scheme that the present invention optimizes further, 2Flsin θ=Ghsin θ when described compensating torque is equal with tilting moment, i.e. F=Gh/2l, the full remuneration to turntable tilting moment can be realized, wherein balance component F value can adjust balancing cylinder I and balancing cylinder II pressure realization by hydraulic control system.
The technical scheme that the present invention optimizes further, as shown in Figure 5, CNC digital control system analog output in hydraulic control system 6, two-position two-way solenoid valve 8 is transported to through amplifier process, thus hydraulic oil is inputted balancing cylinder I1 and balancing cylinder II2 with certain pressure by control accumulator 9, at two-position two-way solenoid valve 8 and placement force switch 10 and electro connecting pressure gauge 11 between balancing cylinder I1 and balancing cylinder II2, convert actual pressure to the signal of telecommunication, and feed back to pressure switch, after CNC digital control system outputs signal and compares, difference is acted on pressure switch 10, adjustment flows to the command signal of two-position two-way solenoid valve 8, two-position two-way solenoid valve 8 adjusts controlled quentity controlled variable automatically by accumulator 9, to eliminate difference, thus control the pressure of whole system, ensure the constant pressure in balancing cylinder I1 and balancing cylinder II2 cylinder.
The present invention also provides a kind of diaxon electricity turntable mechanism of double hydraulic cylinder counterweight, as shown in Figure 3-4, turntable body lower part is provided with balancing cylinder I1 and balancing cylinder II2, one end of balancing cylinder I1 and balancing cylinder II2 is fixed on the below of rotating shaft A axle by end face ball bearing 3, the other end of balancing cylinder I1 and balancing cylinder II2 is fixed on lathe bed by oil cylinder 4, the pressure of balancing cylinder I1 and balancing cylinder II2 is controlled by hydraulic control system, and described turntable body is also provided with slip oil sealing 5.
The technical scheme that the present invention optimizes further, described balancing cylinder I1 and balancing cylinder II2 is provided with fuel feed hole and oil outlet, and fuel feed hole is communicated with hydraulic control system 6 with oil outlet.
The technical scheme that the present invention optimizes further, described balancing cylinder I1 and balancing cylinder II2 is symmetrical arranged.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the diaxon electricity turntable mechanism of a double hydraulic cylinder counterweight compensates the method for tilting moment, it is characterized in that, by the mechanical balance mechanism of double hydraulic cylinder counterweight, the impact of reduction or reasonable compensation turntable tilting moment, mechanical balance mechanism comprises balancing cylinder I and balancing cylinder II, wherein one end of balancing cylinder I and balancing cylinder II is fixed on the below of the rotating shaft A axle of the turntable producing tilting moment by end face ball bearing, when turntable rotates around rotating shaft A axle, balancing cylinder I and balancing cylinder II cylinder block are followed the swing of turntable and rotate around oil cylinder, the pressure of hydraulic control system adjustment balancing cylinder I and balancing cylinder II, thus the reasonable compensation realized turntable tilting moment.
2. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 1 compensates the method for tilting moment, it is characterized in that, the pressure of described balancing cylinder I and balancing cylinder II is adjusted by hydraulic control system and keeps constant P value, is subject to a constant balance component F upwards all the time to make turntable.
3. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 1 compensates the method for tilting moment, it is characterized in that, in the motion of described turntable, the center of gravity G point of turntable, rotating shaft A axle axle center, end face ball bearing articulated position point are all the time point-blank.
4. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 3 compensates the method for tilting moment, it is characterized in that, in described turntable motion, the arm of force of center of gravity G is h, one end of balancing cylinder I and balancing cylinder II is fixed on the below of the rotating shaft A axle of the turntable producing tilting moment by end face ball bearing, the arm of force is l, the anglec of rotation of turntable is θ, the tilting moment that center of gravity G produces is Ghsin θ, balancing cylinder I and balancing cylinder II acts on one and center of gravity tilting moment rightabout compensating torque 2Flsin θ on A axle by end face ball bearing, the size of tilting moment and compensating torque, sine value all with turntable anglec of rotation θ changes.
5. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 4 compensates the method for tilting moment, it is characterized in that, 2Flsin θ=Ghsin θ when described compensating torque is equal with tilting moment, i.e. F=Gh/2l, the full remuneration to turntable tilting moment can be realized, wherein balance component F value can adjust balancing cylinder I and balancing cylinder II pressure realization by hydraulic control system.
6. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 5 compensates the method for tilting moment, it is characterized in that, CNC digital control system analog output in hydraulic control system, two-position two-way solenoid valve is transported to through amplifier process, thus hydraulic oil is inputted balancing cylinder I and balancing cylinder II with certain pressure by control accumulator, at two-position two-way solenoid valve and placement force switch and electro connecting pressure gauge between balancing cylinder I and balancing cylinder II, convert actual pressure to the signal of telecommunication, and feed back to pressure switch, after CNC digital control system outputs signal and compares, difference is acted on pressure switch, adjustment flows to the command signal of two-position two-way solenoid valve, two-position two-way solenoid valve adjusts controlled quentity controlled variable automatically by accumulator, to eliminate difference, thus control the pressure of whole system, ensure the constant pressure in balancing cylinder I and balancing cylinder II cylinder.
7. the diaxon electricity turntable mechanism of a double hydraulic cylinder counterweight, it is characterized in that, turntable body lower part is provided with balancing cylinder I and balancing cylinder II, one end of balancing cylinder I and balancing cylinder II is fixed on the below of rotating shaft A axle by end face ball bearing, the other end of balancing cylinder I and balancing cylinder II is fixed on lathe bed by oil cylinder, the pressure of balancing cylinder I and balancing cylinder II is controlled by hydraulic control system, and described turntable body is also provided with slip oil sealing.
8. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 7, it is characterized in that, described balancing cylinder I and balancing cylinder II is provided with fuel feed hole and oil outlet, and fuel feed hole is communicated with hydraulic control system with oil outlet.
9. the diaxon electricity turntable mechanism of a kind of double hydraulic cylinder counterweight as claimed in claim 8, it is characterized in that, described balancing cylinder I and balancing cylinder II is symmetrical arranged.
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| CN201510964080.7A CN105382624A (en) | 2015-12-21 | 2015-12-21 | Double-hydraulic cylinder counterweight two-shaft electric turntable mechanism and method thereof for compensating overturning moment |
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| CN201510964080.7A CN105382624A (en) | 2015-12-21 | 2015-12-21 | Double-hydraulic cylinder counterweight two-shaft electric turntable mechanism and method thereof for compensating overturning moment |
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| CN106862945A (en) * | 2017-04-18 | 2017-06-20 | 王心成 | A kind of cradle-type double back revolving worktable |
| CN108515356A (en) * | 2018-05-28 | 2018-09-11 | 威海鸿峰精密机械有限公司 | A kind of high-precision bias unit of adjustable angle |
| CN113588311A (en) * | 2021-07-30 | 2021-11-02 | 珠海格力智能装备有限公司 | Rotating structure, detection device and detection method |
| CN114440956A (en) * | 2022-04-11 | 2022-05-06 | 西安星通通信科技有限公司 | Three-dimensional test turntable with adjustable rigidity and rigidity debugging method thereof |
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| CN108515356A (en) * | 2018-05-28 | 2018-09-11 | 威海鸿峰精密机械有限公司 | A kind of high-precision bias unit of adjustable angle |
| CN113588311A (en) * | 2021-07-30 | 2021-11-02 | 珠海格力智能装备有限公司 | Rotating structure, detection device and detection method |
| CN114440956A (en) * | 2022-04-11 | 2022-05-06 | 西安星通通信科技有限公司 | Three-dimensional test turntable with adjustable rigidity and rigidity debugging method thereof |
| CN114440956B (en) * | 2022-04-11 | 2022-08-05 | 西安星通通信科技有限公司 | Three-dimensional test turntable with adjustable rigidity and rigidity debugging method thereof |
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