CN102039543A - Electro-hydraulic direct driving type indexing turntable - Google Patents
Electro-hydraulic direct driving type indexing turntable Download PDFInfo
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- CN102039543A CN102039543A CN2009102723822A CN200910272382A CN102039543A CN 102039543 A CN102039543 A CN 102039543A CN 2009102723822 A CN2009102723822 A CN 2009102723822A CN 200910272382 A CN200910272382 A CN 200910272382A CN 102039543 A CN102039543 A CN 102039543A
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- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 2
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 230000009347 mechanical transmission Effects 0.000 abstract 1
- 206010015856 Extrasystoles Diseases 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention relates to an electro-hydraulic direct driving type indexing turntable which is used for indexing and machining. A servo motor is fixed on an indexing box body and is directly connected with a main shaft through a coupler; both ends of the main shaft are supported on the indexing box body through bearings; a locking oil cylinder piston in a cylinder body is fixed on the main shaft; a left fluted disc is fixed on the cylinder body, and a right fluted disc is rigidly connected with the main shaft; the main shaft has the effect of clamping an oil cylinder body, and an oil cylinder clamping piston is arranged in a hole; an oil cylinder pull rod is connected with the oil cylinder clamping piston, and the pull rod moves to clamp or loose workpieces; and an oil separating sleeve is fixed at the front end of the indexing box body. The electro-hydraulic direct driving type indexing turntable directly drives a workpiece main shaft by using the servo motor, automatically positions, locks and clamps the workpieces, has a simple structure, short mechanical transmission chain and quick action response, can reduce influence of elastic deformation, friction and reverse clearance which are caused by mechanical parts on indexing precision when a revolving shaft is started, accelerated, decelerated, reversed and stopped and the like, can reduce mechanical vibration and other nonlinear errors, has high precision retaining ability, and improves the indexing precision and transmission efficiency.
Description
Technical field
The present invention relates to the index table in the field of machining.
Background technology
At present, both at home and abroad the type of drive of index table mainly contains hydraulic-driven, driven by servomotor and torque motor and directly drives etc. several.Its principle and applicable cases are respectively:
1, hydraulic drive type index table: drive tooth bar by hydraulic jack, the rack drives gear carries out circular index.But the angular range of this class index table calibration is less, and the rotating speed of index table is slower, the general and supporting use of special equipment.
2, electrodynamic type index table: drive worm couple or gear by rotating servo motor, worm couple or gear play a part to slow down and amplify the servomotor moment of torsion, the machining accuracy of this structural requirement worm couple and gear is very high, forward and backward all can only have very little gap between the driving member, therefore very high to the processing and the matching requirements of product, cause the difficulty of processing of such index table big, the manufacturing cost height, and driving member in use precision can reduce gradually, influences the precision and the stability of index table.
3, direct-drive type index table: directly drive index table with high pulling torque, slow-revving torque motor, the numerical control rotating platform manufacturing process of this structure is simple, and driving-chain is short, positioning accuracy is higher, owing to be direct driving, do not have middle gearing friction pair, so precision stability is better simultaneously.Yet the direct-drive type index table also has following shortcoming, and as: heating problem, every magnetic problem, deadweight problem, load disturbance problem etc. when vertically installing, the used torque motor of direct-drive type index table is wanted complete dependence on import at present.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the present invention is to provide a kind of electric liquid direct-drive type index table, to realize reducing mechanical drive train, improve the purpose of indexing accuracy and transmission efficiency.
For achieving the above object, technical program of the present invention lies in: servomotor is fixed on the calibration casing, and by shaft coupling and work spindle direct connection, the work spindle two ends are bearing on the calibration casing by angular contact ball bearing; The locking cylinder piston is fixed on the work spindle by key joint, and the locking cylinder piston is in movable latch locking oil cylinder cylinder body, and cylinder body moves at axial direction, be locked in radial direction, the left end fluted disc is fixed on the locking cylinder cylinder body, and the right-hand member fluted disc is equipped with fixed cover, links to each other with work spindle by key; Clamping cylinder cylinder body and the work spindle of realizing the workpiece automatic loading and unloading are one, and movable clamping cylinder piston is arranged in the clamping cylinder cylinder body; But the front end of calibration casing is fixed with the branch oil jacket that not only the workpiece clamp locking oil cylinder is carried out branch oil and workpiece pressing front-end of spindle bearing, divides on the oil jacket sealing ring is housed.
The locating ring that among the present invention workpiece is positioned is fixed on clamping cylinder cylinder body one end, the oil cylinder pull bar is solidified as a whole paw, spring housing, clamping cylinder piston, spring housing is pressed in spring in the hole of cylinder cover, effect by spring, spring housing, paw, workpiece in the time of clamping cylinder piston mobile can make the paw swing, thereby workpiece is clamped or loosens.
On the locking cylinder cylinder body of the present invention location-plate is housed, screw is fixed on the two ends of location-plate by the needle roller pressing plate with the needle roller plate, and the cover plate on positioning seat and the calibration casing is fixed as one, and location-plate moves by needle roller in the positioning seat that is fixed as one with the calibration casing.
Servomotor of the present invention and work spindle direct connection, the main shaft two supports is the angular contact ball bearing of assembled in pairs, is bearing on the calibration casing, and to be work spindle bearing greatlyyer axially and during radial load the characteristics of this bearing combination, still can rotate more easily; The frictional force that the moment of torsion of rotating servo motor needs only greater than main shaft bearing can drive work spindle rotation calibration.
The present invention adopts the left and right end-toothed disc of bigeminy location, the form of oil pressure locking, and locking cylinder adopts piston to fix, and cylinder body moves, and the location of cylinder body circumferencial direction is realized by the detent mechanism of himself, can be guaranteed that the cylinder body circumferencial direction does not have the gap; On the right-hand member fluted disc fixed cover is housed, links, make between right-hand member fluted disc and work spindle gap without any circumferencial direction by high accuracy flat key and work spindle.Therefore when meshing under the effect of two end-toothed discs at oil pressure, the work spindle circumferencial direction does not have the gap, the precision of indexing accuracy, repeatable accuracy and end-toothed disc that can effectively guarantee turntable is basic identical, and end-toothed disc does not need lifting of work spindle when separating, so the starting torque of rotating servo motor does not just need too big.
The positioning principle of locking cylinder cylinder body circumferencial direction is among the present invention: adorn a location-plate on cylinder body, location-plate can only move by needle roller in the positioning seat that is fixed as one with electric liquid index table casing, because needle roller also can roll having under the situation of pretightning force, thus the locking cylinder cylinder body at circumferencial direction without any the gap.
Because rotating servo motor and work spindle direct connection, the rear end of work spindle can not the clamping locking oil cylinder in the index table.Can't realize automated exchanged cutter for solving processing work, the present invention directly processes an oil cylinder at the front end of work spindle, and workpiece clamp locking oil cylinder and work spindle are become one, and can realize the automated exchanged cutter of workpiece.Simultaneously for solving the advancing of oil cylinder, problem that oil return pipe can't be installed, fix a branch oil jacket at the front end of electric liquid index table casing, divide oil jacket not only the workpiece clamp locking oil cylinder to be carried out branch oil, and can play workpiece pressing front-end of spindle bearing, divide be equipped with on the oil jacket three rotations with sealing ring with realize that the Work-sheet pressing oil cylinder advances, the sealing at the separation of oil return line and branch oil jacket two ends.
The present invention adopts rotating servo motor to pass through the flexible sheet shaft coupling and directly drives the index table work spindle, bigeminy end-toothed disc location, locking, the structure of the automatic clamping work pieces of clamping cylinder, simple in structure, mechanical drive train is short, speed of gyration is fast, reduce gyroaxis and finish starting, quicken, slow down, during motions such as counter-rotating and parking, because of machine components produce strain, friction and backlass etc. are to the influence of indexing accuracy, and can reduce mechanical oscillation, motion low-response and other nonlinearity errons, precision stability is good, can effectively improve indexing accuracy and transmission efficiency.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the I partial enlarged drawing of Fig. 2.
The specific embodiment
As shown in Figure 1, the present invention mainly is made up of servomotor 1, shaft coupling 2, bearing 3 and 11, calibration casing 4, work spindle 5, locking cylinder piston 6, locking cylinder cylinder body 7, left end fluted disc 8, right-hand member fluted disc 9, key 10, clamping cylinder piston 12, branch oil jacket 13, sealing ring 14, locating ring 15, spring 16, workpiece 17, spring housing 18, paw 19, round nut 20, paw holder 21, oil cylinder pull bar 22, cylinder cover 23, right-hand member fluted disc fixed cover 31.Servomotor 1 is fixed on the calibration casing 4, passes through flexible sheet shaft coupling 2 direct connections with work spindle 5, and work spindle 5 relies on the angular contact ball bearing 3 and 11 of mounted in pairs to support, locate; Behind bearing 11 pretensions, work spindle 5 still has very high positioning accuracy when bearing larger axis to power and radial load.
Left end fluted disc 8, right-hand member fluted disc 9 have very high precision, indexing accuracy ± 1.5 ", repeatable accuracy ± 1 "; The high accuracy of end-toothed disc is the assurance of indexing accuracy of the present invention and repeatable accuracy.Left end fluted disc 8 is fixed on the locking cylinder cylinder body 7 by screw, taper pin, and right-hand member fluted disc 9 is equipped with fixed cover 31, links to each other with work spindle 5 by high accuracy flat key 10.Locking cylinder cylinder body 7 moves to right, the engagement of two end-toothed discs, and work spindle 5 lockings can be carried out machining; Locking cylinder cylinder body 7 moves to left, and two end-toothed discs are thrown off, and work spindle 5 unclamps, and the servomotor rotation just can realize calibration.
In order to make workpiece 17 energy automated exchanged cutters, process a hole at work spindle 5 front ends, make it play the clamping cylinder cylinder body simultaneously, locating ring 15 is screwed clamping cylinder cylinder body one end at work spindle 5 front ends, workpiece 17 is by locating ring 15 location, oil cylinder pull bar 22 is solidified as a whole paw 19, spring housing 18, clamping cylinder piston 12, spring housing 18 is pressed in spring 16 in the hole of cylinder cover 23, effect by spring 16, spring housing 18 when clamping cylinder piston 12 moves can make the paw swing, thereby workpiece is clamped or loosens.When the oil-feed of the right chamber of clamping cylinder, clamping cylinder piston 12, oil cylinder pull bar 22, paw 19 workpiece pressing 17 that moves to left; When the oil-feed of chamber, a clamping cylinder left side, clamping cylinder piston 12, oil cylinder pull bar 22, paw 19 move to right, and unclamp workpiece 17; In order to realize the automatic loading and unloading of workpiece, paw 19 is connected on the holder 21 by bearing pin 32, spring housing 18 also has a less displacement to the right under the elastic force of spring 16 when paw 19 unclamps workpiece and moves to right, so paw 19 just on bearing pin 32 the counter-clockwise swing certain angle (size of angle with workpiece smoothly loading and unloading be advisable, can be by changing the length adjustment of spring) claw is fallen down against on the spring housing 18, thus can unload workpiece 17 easily; After workpiece 17 was in place, paw 19 was swung clockwise on bearing pin 32 when being moved to left by 22 pullings of oil cylinder pull bar and is made claw lift workpiece pressing.Because Work-sheet pressing power do not act on the work spindle bearing, main shaft still can easily rotate during Work-sheet pressing, thus rotating servo motor 1 directly to drive the starting torque of index table less.
As Fig. 2, shown in Figure 3, location-plate 26 is housed on the locking cylinder cylinder body 7, screw 30 is fixed on needle roller plate 25,27 symmetries by needle roller pressing plate 28 two ends of location-plate 26, positioning seat 29 is fixed as one with box cover plate 24, and location-plate 26 moves by the needle roller on the needle roller plate 25,27 in the groove of positioning seat 29.Adjusting needle roller pressing plate 28 by screw 30 makes the needle roller on the needle roller plate 25,27 bear certain pretightning force, because the thrust of oil cylinder is bigger, needle roller on the needle roller plate 25,27 still can roll in the situation of bearing certain pretightning force, has guaranteed normal the moving of locking cylinder cylinder body 7 thus and circumferencial direction is very close to each other.
Claims (9)
1. electric liquid direct-drive type index table, work spindle (5) two ends are bearing on the calibration casing (4) by bearing, it is characterized in that: servomotor (1) is fixed on the calibration casing (4), by shaft coupling (2) and work spindle (5) direct connection, work spindle (5) is by hydraulic locking apparatus locking, and workpiece loosens by hydraulic clamp or clamps.
2. electric liquid direct-drive type index table according to claim 1, it is characterized in that: the locking cylinder piston (6) of said hydraulic locking apparatus is fixed on the work spindle (5), locking cylinder piston (6) is in movable latch locking oil cylinder cylinder body (7), cylinder body moves at axial direction, be locked in radial direction, left end fluted disc (8) is fixed on the locking cylinder cylinder body (7), and right-hand member fluted disc (9) is by fixed cover (31), key (10) and work spindle (5) rigid attachment.
3. electric liquid direct-drive type index table according to claim 1 is characterized in that: the clamping cylinder cylinder body of said hydraulic clamp and work spindle (5) are all one, and movable clamping cylinder piston (12) is arranged in its cylinder body.
4. electric liquid direct-drive type index table according to claim 1 is characterized in that: calibration casing (4) but front end be fixed with and can carry out the branch oil branch oil jacket (13) of the preceding end bearing of workpiece pressing main shaft (5) (11) again clamping cylinder.
5. electric liquid direct-drive type index table according to claim 3, it is characterized in that: an end of clamping cylinder cylinder body is fixed with the locating ring (15) that workpiece (17) internal diameter is positioned, oil cylinder pull bar (22) is with paw (19), spring housing (18), clamping cylinder piston (12) is solidified as a whole, spring housing (18) is pressed in spring (16) in the hole of cylinder cover (23), when clamping cylinder piston (12) moves, by spring (16), spring housing (18), paw (19), the effect of workpiece (17) can make paw (19) lift because of swing or fall down, thereby workpiece (17) is clamped or loosens.
6. electric liquid direct-drive type index table according to claim 2, it is characterized in that: location-plate (26) is housed on the locking cylinder cylinder body (7), screw (30) is fixed on needle roller plate (25), (27) by needle roller pressing plate (28) two ends of location-plate (26), cover plate (24) on positioning seat (29) and the calibration casing (4) is fixed as one, and location-plate (26) moves by the needle roller on needle roller plate (25), (27) in the positioning seat (29) that is fixed as one with calibration casing (4).
7. electric liquid direct-drive type index table according to claim 1 is characterized in that: the bearing at work spindle (5) two ends is angular contact ball bearing (3) and (11) of assembled in pairs.
8. electric liquid direct-drive type index table according to claim 2, it is characterized in that: locking cylinder piston (6) is fixed on the work spindle (5) by key joint.
9. electric liquid direct-drive type index table according to claim 4 is characterized in that: divide on the oil jacket (13) sealing ring (14) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102723822A CN102039543A (en) | 2009-10-11 | 2009-10-11 | Electro-hydraulic direct driving type indexing turntable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102723822A CN102039543A (en) | 2009-10-11 | 2009-10-11 | Electro-hydraulic direct driving type indexing turntable |
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| CN102039543A true CN102039543A (en) | 2011-05-04 |
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| CN2009102723822A Pending CN102039543A (en) | 2009-10-11 | 2009-10-11 | Electro-hydraulic direct driving type indexing turntable |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788607A (en) * | 2012-07-19 | 2012-11-21 | 中国航空工业集团公司北京航空精密机械研究所 | High-precision end-toothed disc positioning rotary table |
| CN107355482A (en) * | 2016-05-09 | 2017-11-17 | 邱菩宣 | Index the coupling body of rotating device |
| CN107378563A (en) * | 2017-09-08 | 2017-11-24 | 南京宁庆数控机床制造有限公司 | A kind of digital controlled rotary angle clip |
| CN107649892A (en) * | 2017-07-26 | 2018-02-02 | 襄阳博亚精工装备股份有限公司 | Cage shaft coupling retainer vision positioning automatic clamping fixture |
| CN109129009A (en) * | 2018-11-06 | 2019-01-04 | 南京众得利自动化机械有限公司 | A kind of quick index device changing indexing of surging |
| CN109822395A (en) * | 2019-03-29 | 2019-05-31 | 浙江朝朝机电制造有限公司 | A direct-connected indexing and clamping combined structure |
| CN110394687A (en) * | 2019-07-30 | 2019-11-01 | 张棋 | A kind of precision indexing device |
| CN110482840A (en) * | 2019-08-20 | 2019-11-22 | 河北陆源科技有限公司 | The straight indexing driving device of vertical tube bottle-making machine and grading method |
| CN111152043A (en) * | 2020-02-02 | 2020-05-15 | 罗夯智能科技（上海）有限公司 | Auxiliary supporting mechanism for rotary table |
| CN111168419A (en) * | 2020-02-28 | 2020-05-19 | 重庆机床(集团)有限责任公司 | Double-workbench floating positioning mechanism |
| CN111805015A (en) * | 2020-07-15 | 2020-10-23 | 重庆机床(集团)有限责任公司 | Calling control method of hydraulically-driven multi-station rotary table |
| CN112589171A (en) * | 2020-12-02 | 2021-04-02 | 四川航天长征装备制造有限公司 | Milling clamping tool and machining method for rotary part with circumferential boss |
| CN112705999A (en) * | 2019-10-24 | 2021-04-27 | 祝志诚 | Indexing clamping seat |
| CN113001201A (en) * | 2021-03-15 | 2021-06-22 | 沈阳机床股份有限公司 | Servo indexing hollow rotary table clamped by hydraulically-driven spring chuck |
| CN113953892A (en) * | 2021-12-14 | 2022-01-21 | 吉林东光奥威汽车制动系统有限公司 | Clamping mechanism capable of being quickly indexed, positioned and adjusted |
| CN114434211A (en) * | 2022-03-07 | 2022-05-06 | 中国北方车辆研究所 | Graduated disk device based on meshing of mouse chain wheel |
-
2009
- 2009-10-11 CN CN2009102723822A patent/CN102039543A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788607A (en) * | 2012-07-19 | 2012-11-21 | 中国航空工业集团公司北京航空精密机械研究所 | High-precision end-toothed disc positioning rotary table |
| CN102788607B (en) * | 2012-07-19 | 2016-12-21 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of high accuracy Endtooth-disc fix turntable |
| CN107355482A (en) * | 2016-05-09 | 2017-11-17 | 邱菩宣 | Index the coupling body of rotating device |
| CN107649892A (en) * | 2017-07-26 | 2018-02-02 | 襄阳博亚精工装备股份有限公司 | Cage shaft coupling retainer vision positioning automatic clamping fixture |
| CN107649892B (en) * | 2017-07-26 | 2024-01-30 | 襄阳博亚精工装备股份有限公司 | Automatic visual positioning clamping fixture for cage coupler retainer |
| CN107378563A (en) * | 2017-09-08 | 2017-11-24 | 南京宁庆数控机床制造有限公司 | A kind of digital controlled rotary angle clip |
| CN109129009A (en) * | 2018-11-06 | 2019-01-04 | 南京众得利自动化机械有限公司 | A kind of quick index device changing indexing of surging |
| CN109129009B (en) * | 2018-11-06 | 2024-03-22 | 南京众得利自动化机械有限公司 | Quick indexing device for changing hydraulic indexing |
| CN109822395A (en) * | 2019-03-29 | 2019-05-31 | 浙江朝朝机电制造有限公司 | A direct-connected indexing and clamping combined structure |
| CN110394687A (en) * | 2019-07-30 | 2019-11-01 | 张棋 | A kind of precision indexing device |
| CN110482840A (en) * | 2019-08-20 | 2019-11-22 | 河北陆源科技有限公司 | The straight indexing driving device of vertical tube bottle-making machine and grading method |
| CN110482840B (en) * | 2019-08-20 | 2023-07-14 | 河北陆源科技有限公司 | Direct indexing type driving device and indexing method for vertical tube bottle making machine |
| CN112705999A (en) * | 2019-10-24 | 2021-04-27 | 祝志诚 | Indexing clamping seat |
| CN111152043A (en) * | 2020-02-02 | 2020-05-15 | 罗夯智能科技（上海）有限公司 | Auxiliary supporting mechanism for rotary table |
| CN111168419A (en) * | 2020-02-28 | 2020-05-19 | 重庆机床(集团)有限责任公司 | Double-workbench floating positioning mechanism |
| CN111805015A (en) * | 2020-07-15 | 2020-10-23 | 重庆机床(集团)有限责任公司 | Calling control method of hydraulically-driven multi-station rotary table |
| CN112589171A (en) * | 2020-12-02 | 2021-04-02 | 四川航天长征装备制造有限公司 | Milling clamping tool and machining method for rotary part with circumferential boss |
| CN113001201A (en) * | 2021-03-15 | 2021-06-22 | 沈阳机床股份有限公司 | Servo indexing hollow rotary table clamped by hydraulically-driven spring chuck |
| CN113953892A (en) * | 2021-12-14 | 2022-01-21 | 吉林东光奥威汽车制动系统有限公司 | Clamping mechanism capable of being quickly indexed, positioned and adjusted |
| CN113953892B (en) * | 2021-12-14 | 2023-10-24 | 吉林东光奥威汽车制动系统有限公司 | Clamping mechanism capable of being rapidly indexed, positioned and adjusted |
| CN114434211A (en) * | 2022-03-07 | 2022-05-06 | 中国北方车辆研究所 | Graduated disk device based on meshing of mouse chain wheel |
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Address after: Thirteen, 441003, Torch Hotel,, 15 Spring Garden Road, Xiangfan, Hubei Applicant after: Xiangyang Boya Precision Machinery Co., Ltd. Address before: Thirteen, 441003, Torch Hotel,, 15 Spring Garden Road, Xiangfan, Hubei Applicant before: Xiangfan Boya fine Workmanship Machine Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: XIANGFAN BOYA FINE WORKMANSHIP MACHINE CO., LTD. TO: XIANGYANG BOYA PRECISION INDUSTRIAL MACHINERY CO., LTD. |
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Application publication date: 20110504 |