CN204094480U - The coding turntable of Changeable Lead Worm Wheel System - Google Patents
The coding turntable of Changeable Lead Worm Wheel System Download PDFInfo
- Publication number
- CN204094480U CN204094480U CN201420580188.7U CN201420580188U CN204094480U CN 204094480 U CN204094480 U CN 204094480U CN 201420580188 U CN201420580188 U CN 201420580188U CN 204094480 U CN204094480 U CN 204094480U
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- main shaft
- casing
- worm screw
- turntable
- encoder
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Abstract
The utility model relates to turntable structure field, disclose the coding turntable of Changeable Lead Worm Wheel System, comprise: casing, main shaft, turbine, worm screw, and the rotating disk to be connected with front-end of spindle, main shaft is arranged on box house by bearing, Cover For A Turbine is on main shaft, and carry out key with main shaft and be connected, two ends, worm screw left and right are by bearings, and the helical tooth part of worm screw and turbine engaged transmission, this helical tooth part adopts Changeable Lead structure, and there is one to connect into the bearing holder (housing, cover) of integral installation in casing with it at the bearing of worm screw left end, this bearing holder (housing, cover) be respectively arranged with distance screw and admittedly lock screw, the back of casing is provided with an encoder, this encoder is connected with the rear end of main shaft by the coupling sleeve of coupling, the utility model transmission back clearance is adjustable, the stationarity of drive motion can be kept, realize Large-torsion transmisson, reduce electric energy loss, and turntable closed-loop control can be realized, improve the positioning precision of turntable corner, meet high-precision processing.
Description
Technical field
The utility model relates to turntable structure field, the coding turntable of a kind of Changeable Lead Worm Wheel System on especially a kind of slide plate being arranged on dynamic pillar gantry machining center.
Background technology
At present, the portal frame of dynamic pillar gantry machining center has the saddle can made Y-axis and slide, saddle is provided with a slide plate can made Z axis and slide, and this slide plate is equipped with a turntable for processing.In this field, the driving member that traditional turntable generally adopts large pinion or common worm and gear to rotate as turntable, employing size is gear-driven, if reach the requirement of driving torque, then whole driving member installation dimension needs larger, and its positioning precision and driving torque all cannot meet processing request; Adopt common worm and gear as transmission, although large driving torque can be reached, after the helical tooth part wears of worm screw, cannot rapid adjustment or elimination with worm-drive gap.
Summary of the invention
The utility model is in order to solve the weak point of above-mentioned existence, a kind of coding turntable of Changeable Lead Worm Wheel System is provided, solve existing turntable driving member back clearance can not adjust, can not Large-torsion transmisson be realized and positioning precision is low, to cause problems such as can not meeting required processing request.
In order to achieve the above object, the utility model comprises: casing, main shaft, turbine, worm screw is formed, there is a rotating disk be connected with front-end of spindle in the front of casing, main shaft is arranged on box house, and by bearings, Cover For A Turbine is on main shaft, and be connected with main shaft by key connected mode, worm screw is arranged on turbine on one side, its two ends, left and right are by bearings, and the helical tooth part of worm screw and turbine engaged transmission, it is characterized in that: the helical tooth part of described worm screw adopts Changeable Lead structure, and there is one to connect into the bearing holder (housing, cover) of integral installation in casing with it at the bearing of worm screw left end, this bearing holder (housing, cover) is respectively arranged with and makes it make the movable distance screw of direction of principal axis, and make it admittedly be locked in solid lock screw on casing, the back of described casing is also provided with an encoder, this encoder is connected with the rear end of main shaft by the coupling sleeve of coupling.
Preferably, described encoder is also covered with the encoder cover of an anti-cutting fluid and iron filings.
Preferably, described main shaft left end is equipped with the worm screw top cover that is played protective action.
The worm and gear that the utility model have employed Changeable Lead makes driving member, keep the stationarity of drive motion, realize Large-torsion transmisson, and only need to adopt lower-powered servomotor just can realize high pulling torque cutting, reduce electric energy loss, and transmission back clearance between worm and gear can be adjusted by adjustment bearing holder (housing, cover) convenient and simplely, and also installed encoder additional at the back side of turntable and control, the closed-loop control of turntable can be realized, improve the corner positioning precision of turntable, meet high-precision processing request.
Accompanying drawing explanation
Fig. 1 is cut-away view of the present utility model.
Fig. 2 is encoder connection layout of the present utility model.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the utility model comprises: the assembly such as casing 1, main shaft 2, worm gear 3, worm screw 4, encoder 10.
Casing 1 is arranged on the slide plate of dynamic pillar gantry machining center, there is a rotary rotating disk (not shown in FIG.) in the front of casing 1, this rotating disk is connected with electro spindle, and be equipped with one and its mounting flange 12 at the back of casing 1, this ring flange 12 is fixed on casing, and it has a centre bore be communicated with casing.
Main shaft 2 is arranged on the inside of casing 1, two ends are fixing as support by bearing, the front end of main shaft 2 connects with rotating disk through the front of casing, main shaft 2 with connect the form can making monoblock type or connection between rotating disk, and the rear end of main shaft 2 is corresponding with the centre bore of ring flange 12.
Worm gear 3 to be enclosed within main shaft 2 and to make it be placed in the medium position of main shaft, then adopts known key connected mode to be connected with main shaft, thus makes worm gear 3 operationally drive main shaft 2 to work together.The excircle of worm gear 3 is provided with the equal all teeth of transverse tooth thickness.
Worm screw 4 is arranged on one side of the inner worm gear 3 of casing 1, its two ends, left and right are by bearing 5, 8 do support fixes, there is the helical tooth part 6 with all tooth contact engaged transmission of worm gear 3 at the middle part of worm screw 4, this helical tooth part 6 have employed Changeable Lead structural design, namely the left and right tooth mask of worm screw 4 has unequal helical pitch, the axial tooth thickness of worm screw 4 passes through along its axis and increases by a certain percentage or reduce, and it is all equal with worm gear 3 transverse tooth thickness of Changeable Lead worm engaging, so, when worm screw 4 is moved vertically, meshing backlass between them also changes thereupon, when after a pair Changeable Lead worm couple running long period, the stationarity of motion is destroyed because wearing and tearing cause flank engagement sideshake to strengthen, now, by Changeable Lead worm screw along the thinning direction displacement one section of axial distance of transverse tooth thickness, meshing backlass then reduces thereupon or eliminates completely, recovered the stationarity of moving thereupon.
The bearing 7 of above-mentioned worm screw left end has one to be integrally arranged on the bearing holder (housing, cover) in casing 1 with it, and this bearing holder (housing, cover), bearing 7 had both played the effect of support bearing, moves axially again the assembly of adjustment screw clearance.Bearing holder (housing, cover) circumferentially have four distance screws and admittedly lock screw respectively, position can be moved axially by regulating shaft bearing sleeve in casing by distance screw, thus worm screw 4 just can do mobile adjustment thereupon, thus reach the transmission back clearance of adjustment worm screw 4 and worm gear 3, and adjusting seat can be made firmly admittedly to be locked on casing by admittedly locking screw.The set-up procedure of bearing holder (housing, cover): first unclamp four distance screws a little uniformly, adjust other four locking screws, make worm screw, adjusting seat to front or rear mobile reduction worm screw and the backlash engaged between turbine, then check that whether backlash between them is between 0.01 ~ 0.02mm, if do not reached, then repeat abovementioned steps until backlash is between meeting the demands, then locking distance screw.
Encoder 9 have employed known approaches and is fixed on the ring flange 12 of box back surface, its control end uses coupling sleeve 11 pairs of encoders 9 of coupling to be connected with main shaft 2 rear end, in order to prevent cutting fluid and iron filings in production process, encoder 9 is damaged, encoder 9 is also provided with an encoder cover 10, and Flange joint made by encoder cover 10 and ring flange 12.In practice, owing to there is certain radial clearance by key connecting when gear (gear here refers to two travelling gears between motor to worm screw) and main shaft 1 are installed, wear and tear after worm and gear work a period of time and have certain gap, when end (mainly refers to workbench, the ends such as the main shaft on rotating disk) load larger time, (connector refers to the part on all driving-chains to connector, shaft coupling, coupling spindle, gear, worm and gear etc.) produce certain elastic deformation after rotating disk just really rotate, comprehensive these factors above, the number of turns of electric machine rotation is divided by after gearratio, certain error will be there is with the number of turns of rotating disk actual rotation, this error is the systematic error of whole driving-chain is to eliminate completely.Therefore, encoder mainly detects the number of turns of rotating disk actual rotation by coding techniques, and by signal feedback to digital control system, digital control system is revised in real time according to the feedback signal of encoder, rotating disk is made to forward correct position to, thus realize closed-loop control, improve corner positioning precision, meet high-precision processing request.The encoder of height precise selected by encoder, often turns 1,000,000 pulse signal.
Claims (3)
1. the coding turntable of Changeable Lead Worm Wheel System, comprise: casing (1), main shaft (2), turbine (3), worm screw (4) is formed, there is a rotating disk be connected with main shaft (2) front end in the front of casing (1), it is inner that main shaft (2) is arranged on casing (1), and by bearings, turbine (3) is enclosed within main shaft (2), and be connected with main shaft (2) by key connected mode, worm screw (4) is arranged on turbine (3) on one side, its two ends, left and right are supported by bearing (5) (8), and the helical tooth part (6) of worm screw (4) and turbine (3) engaged transmission, it is characterized in that: the helical tooth part (6) of described worm screw (4) adopts Changeable Lead structure, and there is one to connect into the bearing holder (housing, cover) of integral installation in casing (1) with it at the bearing (8) of worm screw (4) left end, this bearing holder (housing, cover) is respectively arranged with and makes it make the movable distance screw of direction of principal axis, and make it admittedly be locked in solid lock screw on casing (1), the back of described casing (1) is also provided with an encoder (9), this encoder (9) is connected with the rear end of main shaft (2) by the coupling sleeve (11) of coupling.
2. the coding turntable of Changeable Lead Worm Wheel System according to claim 1, is characterized in that: the encoder cover (10) being also covered with an anti-cutting fluid and iron filings on described encoder (9).
3. the coding turntable of Changeable Lead Worm Wheel System according to claim 1, is characterized in that: described main shaft (2) left end is equipped with the worm screw top cover (7) that is played protective action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580188.7U CN204094480U (en) | 2014-10-09 | 2014-10-09 | The coding turntable of Changeable Lead Worm Wheel System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580188.7U CN204094480U (en) | 2014-10-09 | 2014-10-09 | The coding turntable of Changeable Lead Worm Wheel System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204094480U true CN204094480U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420580188.7U Expired - Fee Related CN204094480U (en) | 2014-10-09 | 2014-10-09 | The coding turntable of Changeable Lead Worm Wheel System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204094480U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180041988A (en) * | 2016-10-17 | 2018-04-25 | 국방과학연구소 | Angle control apparatus for potentiometer |
| JP2019181691A (en) * | 2018-04-05 | 2019-10-24 | ニッケン・コウサクショ・ヨーロッパ・リミテッド | System and method for monitoring characteristics of rotary table |
| CN110587033A (en) * | 2019-09-20 | 2019-12-20 | 苏州金品智慧机器人制造股份有限公司 | Steel band burring device |
| CN114102536A (en) * | 2021-11-08 | 2022-03-01 | 漳州东刚精密机械有限公司 | High-precision rotary machining table |
-
2014
- 2014-10-09 CN CN201420580188.7U patent/CN204094480U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180041988A (en) * | 2016-10-17 | 2018-04-25 | 국방과학연구소 | Angle control apparatus for potentiometer |
| KR101952180B1 (en) * | 2016-10-17 | 2019-02-26 | 국방과학연구소 | Angle control apparatus for potentiometer |
| JP2019181691A (en) * | 2018-04-05 | 2019-10-24 | ニッケン・コウサクショ・ヨーロッパ・リミテッド | System and method for monitoring characteristics of rotary table |
| JP7019624B2 (en) | 2018-04-05 | 2022-02-15 | ニッケン・コウサクショ・ヨーロッパ・リミテッド | Systems and methods for monitoring the characteristics of turntables |
| CN110587033A (en) * | 2019-09-20 | 2019-12-20 | 苏州金品智慧机器人制造股份有限公司 | Steel band burring device |
| CN114102536A (en) * | 2021-11-08 | 2022-03-01 | 漳州东刚精密机械有限公司 | High-precision rotary machining table |
| CN114102536B (en) * | 2021-11-08 | 2024-05-31 | 漳州东刚精密机械有限公司 | High-precision rotary machining table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20181009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |