CN201816052U - High-precision swivel table - Google Patents
High-precision swivel table Download PDFInfo
- Publication number
- CN201816052U CN201816052U CN2010205356005U CN201020535600U CN201816052U CN 201816052 U CN201816052 U CN 201816052U CN 2010205356005 U CN2010205356005 U CN 2010205356005U CN 201020535600 U CN201020535600 U CN 201020535600U CN 201816052 U CN201816052 U CN 201816052U
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- worm
- seat
- worm screw
- base
- power transmission
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Abstract
The utility model provides a high-precision swivel table, which comprises a base and a rotating table, wherein the rotating table is provided with a worm gear; the base is provided with a rotating table locking handle and a worm seat; the worm seat is fixedly connected with the end part of the base through a positioning pin and a worm seat fastening screw; a cylindrical vernier is fixed on a seat hole coaxial with a worm through a screw; a graduated disc is connected with the cylindrical vernier; a hand wheel is connected with the graduated disc through a hand wheel fastening screw and is provided with a handle; the worm is fixed on the worm seat through two double row angular contact bearings; an adjusting pad is mounted between the worm seat and the end part of the base; end covers are mounted at two ends of the worm; end cover fastening screws are mounted on the end cover; one end of the worm is connected with a driving shaft through a V-shaped end face clutch; a spring is arranged on the driving shaft; and a driving shaft locking handle is arranged on the casing at one end of the driving shaft. In the utility model, the worm adopts a split structure, and the meshed gap between the worm and a worm gear can be adjusted, so that the influence of the manufacture error accumulation of various parts on the graduation precision of the swivel table can be eliminated, and the processing difficulty of parts can be reduced.
Description
Technical field
The utility model relates to mechanical field, relates in particular to a kind of high-precision rotary working-table.
Background technology
The operation principle of rotary table is to utilize the worm and gear transmission can realize big speed reducing ratio.The transmission of standard worm gear, the centre-to-centre spacing of worm gear and worm screw is: 0.5m (Z
2+ q), and present rotary table for the ease of installing and debugging, is installed in worm screw in the eccentric bushing, the eccentric distance of eccentric bushing 〉=one modulus, promptly 〉=1m, and the centre-to-centre spacing of eccentric bushing and worm gear is reference center distance 0.5m (Z
2+ q) deduct the actual eccentric distance of eccentric bushing, during installation with the direction of worm screw deflection away from the worm gear center, when worm shaft after being in place, with eccentric bushing Rotate 180 °, make worm gear and worm engaging, then the circumferential position of eccentric bushing is fixed.So, the worm gear transmission of standard originally has three accumulations of error, i.e. reference circle of wormwheel foozle, reference circle of worm foozle, worm gear and worm screw centre-to-centre spacing foozle; And present rotary table, except above three accumulations of error, the eccentric throw foozle that also has eccentric bushing, the off-centring error that worm screw and eccentric bushing fit clearance cause, five accumulations of error have caused the indexing accuracy of rotary table not high, defectives such as precision instability, especially huge revolving table, the eccentric orfice of worm screw and eccentric bushing is more elongated, and precision is difficult to control especially.
Summary of the invention
The utility model provides a kind of high-precision rotary working-table, solved the accumulation of the multiple part foozle of background technology, and worm structure is elongated, and it is not high to be easy to generate the rotary table indexing accuracies that defective caused such as flexural deformation, the unsettled shortcoming of precision.
The technical solution of the utility model is achieved in that a kind of high-precision rotary working-table, comprise base, turntable, turntable is provided with worm gear, base is provided with the turntable set lever, the worm screw seat, the worm screw seat is fixedlyed connected with base end with worm screw seat hold-down screw by alignment pin, the cylinder vernier by screw be fixed on worm screw coaxial the seat hole on, dial is connected with the cylinder vernier, handwheel is connected with dial by the handwheel hold-down screw, handwheel is provided with handle, worm screw is fixed on the worm screw seat by two biserial angular contact bearings, is equipped with adjusting pad between worm screw seat and the base end, and the worm screw two ends are equipped with end cap, be equipped with the end cap hold-down screw on the end cap, worm screw one end is connected with power transmission shaft by the V-type end face clutch, and power transmission shaft is provided with spring, and power transmission shaft one end housing is provided with the power transmission shaft set lever;
The front end endoporus of handwheel is provided with self-aligning ball bearing, and the self-aligning ball bearing endoporus is connected with power transmission shaft, and the rear end endoporus of handwheel is connected with power transmission shaft by flat key.
The beneficial effects of the utility model are: worm screw of the present utility model is adopted split-type structural, the back lash of worm and wheel can be regulated, eliminated the influence of multiple part foozle accumulation to the rotary table indexing accuracy, greatly reduced the difficulty of processing of part, production efficiency is improved, and has fundamentally improved the precision and the stability of product.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is a left view of the present utility model.
The part explanation:
1, base, 2, turntable, 3, the turntable set lever, 4, end cap, 5, alignment pin, 6, adjusting pad, 7, end cap hold-down screw, 8, the biserial angular contact bearing, 9, worm gear, 10, worm screw seat, 11, worm screw, 12, the V-type end face clutch, 13, power transmission shaft, 14, locking pin, 15, cylinder vernier hold-down screw, 16, cylinder vernier, 17, dial, 18, spring, 19, flat key, 20, handle, 21, self-aligning ball bearing, 22, the handwheel hold-down screw, 23, handwheel, 24, worm screw seat hold-down screw, 25, the power transmission shaft set lever.
The specific embodiment
Be further described below in conjunction with accompanying drawing: a kind of high-precision rotary working-table, comprise base 1, turntable 2, turntable 2 is provided with worm gear 9, base 1 is provided with turntable set lever 3, worm screw seat 10, be equipped with adjusting pad 6 between worm screw seat 10 and base 1 end, worm screw seat 10 is fixedlyed connected with the end of base 1 with worm screw seat hold-down screw 24 by alignment pin 5, worm screw 11 is fixed on the worm screw seat 10 by two biserial angular contact bearings 8, worm screw 11 axially spacing by the end cap 4 that is located at two ends, and be fixed on the two ends of screw bolt seat 10 with end cap hold-down screw 7, worm gear 9 is adjusted with adjusting pad 6 with the back lash of worm screw 11, adjusting pad 6 is determined according to the actual size of each parts, thereby make worm gear 9 and worm screw 11 reach the optimal engagement state, eliminated the influence of the accumulation of multiple part foozle to the rotary table indexing accuracy, worm screw 11 1 ends are connected with power transmission shaft 13 by V-type end face clutch 12, power transmission shaft 13 is provided with spring 18, eliminate the joint clearance of V-type end face clutch 12 and worm screw 11 by spring 18, the shell of power transmission shaft 13 1 ends is provided with power transmission shaft set lever 25, cylinder vernier 16 by screw 15 be fixed on the coaxial seat hole of worm screw 11 on, dial 17 is connected with cylinder vernier 16, handwheel 23 is connected with dial 17 by handwheel hold-down screw 22, handwheel 23 is provided with handle 20, handwheel 23 front end endoporus are provided with self-aligning ball bearing 21, the endoporus of self-aligning ball bearing 21 is connected with power transmission shaft 13, the rear end endoporus of handwheel 23 is connected with power transmission shaft 13 by flat key 19, and power transmission shaft 13 is regulated by self-aligning ball bearing 21 with the centre-to-centre spacing error of worm screw 11.
When carrying out calibration, earlier shaking handle 20 to the rightabout that will rotate turns an angle, eliminate the gap at engagement position, reach the purpose of accurate calibration, again dial 17 is transferred to " 0 " position locking, begin to carry out calibration then, pull power transmission shaft set lever 25 after putting in place, pin power transmission shaft 13, pull two turntable set levers 3 again by the locking pin 14 that is installed on power transmission shaft 13 shells, turntable 2 and base 1 are pinned, prevent in the process unexpected loosening.
Claims (2)
1. high-precision rotary working-table, comprise base (1), turntable (2), turntable (2) is provided with worm gear (9), base (1) is provided with turntable set lever (3), worm screw seat (10), worm screw seat (10) is fixedlyed connected with base (1) end with worm screw seat hold-down screw (24) by alignment pin (5), cylinder vernier (16) by screw (15) be fixed on worm screw (11) coaxial the seat hole on, dial (17) is connected with cylinder vernier (16), handwheel (23) is connected with dial (17) by handwheel hold-down screw (22), handwheel (23) is provided with handle (20), it is characterized in that worm screw (11) is fixed on the worm screw seat (10) by two biserial angular contact bearings (8), be equipped with adjusting pad (6) between worm screw seat (10) and base (1) end, worm screw (11) two ends are equipped with end cap (4), be equipped with end cap hold-down screw (7) on the end cap (4), worm screw (11) one ends are connected with power transmission shaft (13) by V-type end face clutch (12), power transmission shaft (13) is provided with spring (18), and power transmission shaft (13) one end housings are provided with power transmission shaft set lever (25).
2. a kind of high-precision rotary working-table according to claim 1, the front end endoporus that it is characterized in that handwheel (23) is provided with self-aligning ball bearing (21), self-aligning ball bearing (21) endoporus is connected with power transmission shaft (13), and the rear end endoporus of handwheel (23) is connected with power transmission shaft (13) by flat key (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205356005U CN201816052U (en) | 2010-09-16 | 2010-09-16 | High-precision swivel table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205356005U CN201816052U (en) | 2010-09-16 | 2010-09-16 | High-precision swivel table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201816052U true CN201816052U (en) | 2011-05-04 |
Family
ID=43914019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205356005U Expired - Fee Related CN201816052U (en) | 2010-09-16 | 2010-09-16 | High-precision swivel table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201816052U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111851A (en) * | 2013-01-22 | 2013-05-22 | 鄂州市威达机床有限责任公司 | Tool rotatable operating platform |
| TWI408031B (en) * | 2012-01-13 | 2013-09-11 | ||
| CN104924151A (en) * | 2015-04-30 | 2015-09-23 | 昆山冠品优精密机械有限公司 | High-precision indexing rotary table having high-speed main shaft |
| CN106767645A (en) * | 2017-03-24 | 2017-05-31 | 南京理工大学 | Ball screw assembly, leading screw raceway profile measurement device |
| CN107795656A (en) * | 2017-11-17 | 2018-03-13 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of trimming hand wheel device on manual turntable |
| CN109262560A (en) * | 2018-11-18 | 2019-01-25 | 大连四达高技术发展有限公司 | A kind of model support debugging frame |
-
2010
- 2010-09-16 CN CN2010205356005U patent/CN201816052U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI408031B (en) * | 2012-01-13 | 2013-09-11 | ||
| CN103111851A (en) * | 2013-01-22 | 2013-05-22 | 鄂州市威达机床有限责任公司 | Tool rotatable operating platform |
| CN104924151A (en) * | 2015-04-30 | 2015-09-23 | 昆山冠品优精密机械有限公司 | High-precision indexing rotary table having high-speed main shaft |
| CN106767645A (en) * | 2017-03-24 | 2017-05-31 | 南京理工大学 | Ball screw assembly, leading screw raceway profile measurement device |
| CN107795656A (en) * | 2017-11-17 | 2018-03-13 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of trimming hand wheel device on manual turntable |
| CN109262560A (en) * | 2018-11-18 | 2019-01-25 | 大连四达高技术发展有限公司 | A kind of model support debugging frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120916 |