CN207615800U - A kind of floating clamping mechanism driving device for gear hobbing - Google Patents

A kind of floating clamping mechanism driving device for gear hobbing Download PDF

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Publication number
CN207615800U
CN207615800U CN201721689795.7U CN201721689795U CN207615800U CN 207615800 U CN207615800 U CN 207615800U CN 201721689795 U CN201721689795 U CN 201721689795U CN 207615800 U CN207615800 U CN 207615800U
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CN
China
Prior art keywords
workpiece
chuck body
sleeve
tapered wedges
cam rings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721689795.7U
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Chinese (zh)
Inventor
刘振坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Car Technology Development Co Ltd
Original Assignee
Shanghai Car Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Car Technology Development Co Ltd filed Critical Shanghai Car Technology Development Co Ltd
Priority to CN201721689795.7U priority Critical patent/CN207615800U/en
Application granted granted Critical
Publication of CN207615800U publication Critical patent/CN207615800U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is related to a kind of floating clamping mechanism driving devices for gear hobbing, including pedestal, the chuck body being arranged on pedestal, the wedge-shaped clamping unit for clamping workpiece is set in chuck body and that No.1 for resisting workpiece both ends is arranged at the axle center of workpiece both ends is top and No. two top, taper hole is opened up along axis, described No. two top to be fixedly connected on taper hole cooperation inside chuck body at the axle center of the chuck body.Oblique contract unit has float function when clamping, effectively reduce the interference of the clamping and positioning in clamping process.Compared with prior art, the utility model has the advantages that product clamping precision is high, clamping is reliable, is applicable to automation loading and unloading.

Description

A kind of floating clamping mechanism driving device for gear hobbing
Technical field
The utility model is related to the production technical fields of gear hobbing, and in particular to a kind of floating clamping mechanism for gear hobbing drives dress It sets.
Background technology
Gear is common power transmission component, the transmission of power on different motion direction is commonly used in, with automobile industry The demand of fast development, gear is also increasing.In the production process of gear, it is ensured that workpiece in process can not be certainly Main movement and rotation, so the positioning to workpiece is extremely important.But current positioning device structure is relatively complicated, and Step up the ineffective of positioning, causes the defect rate of gear hobbing larger.
Utility model content
The purpose of this utility model is exactly to provide a kind of locating effect to overcome the problems of the above-mentioned prior art The good floating clamping mechanism driving device for gear hobbing.
The purpose of this utility model can be achieved through the following technical solutions:A kind of floating clamping mechanism for gear hobbing drives Device, which includes pedestal, the chuck body that is arranged on pedestal, wedge shape for clamping workpiece is arranged in chuck body Clamping unit and the No.1 being arranged at the axle center of workpiece both ends for resisting workpiece both ends are top and No. two top, the fixture Taper hole is opened up along axis at the axle center of ontology, described No. two top and taper hole cooperations are fixedly connected on inside chuck body.This No.1 is top and No. two top by being arranged at the axle center at workpiece both ends for utility model so that workpiece is in addition to being rotatable about an axis Except this single-degree-of-freedom, remaining degree of freedom is all controlled, and by wedge-shaped clamping unit, it can be effectively by it around axle center This single-degree-of-freedom is rotated also to control, and with top no interference so that workpiece can not autokinetic movement, can only be with folder Tool moves together, so that workpiece is controllable, in processing, the better quality of gear hobbing.
The wedge-shaped clamping unit include be arranged chuck body top cam rings, taper hole in chuck body is set In and with the sleeve of chuck body coaxial arrangement, the multiple tapered wedges to match with cam rings on sleeve top be set and be used for Pull the pull head that is moved along chuck body major axes orientation of sleeve, the oblique contract block centripetal movement while, oblique contract ring can be in radial direction It is moved in a small amount in plane, until multiple oblique contract blocks are uniformly contacted with oblique contract ring, oblique contract block is uniformly contacted with workpiece, when pull head pulls Sleeve is moved away from the top direction of No.1, and the tapered wedges are contacted and squeezed with cam rings so that cam rings are to inclined wedge Block generates centripetal extruding force, so that tapered wedges generate clamping force to workpiece.Pass through squeezing between cam rings and tapered wedges Pressure generates the clamping force to workpiece, is more uniformly stressed, and the setting of the utility model tapered wedges, cam rings is relative to similar Product, structure are simpler.
The top of the sleeve is equipped with the sliding rail arranged along a plurality of sleeve cross-section radial, and setting one is slided on every sliding rail A tapered wedges, where a plurality of sliding rail is evenly distributed on sleeve top surface on section.Be arranged sliding rail, can allow tapered wedges along Sleeve cross-section radial moves, and facilitates clamp or release workpiece, and to the more adaptable of workpiece thickness.
The number of the tapered wedges is 3~5.
Distance of the cam rings close to the top side of No.1 to axle center is more than cam rings far from the top side of No.1 To the distance in axle center, and the gradient is 7.0~8.5 °, and the gradient and the cam rings of the tapered wedges match.By tapered wedges and inclined wedge The gradient of ring is arranged to 7.0~8.5 °, is because when the gradient is too small, tapered wedges and cam rings are difficult to unclamp after clamping, work as slope When degree is too big, tapered wedges greatly reduce the clamping force of workpiece.
The chuck body front end is equipped with clamp cover, is equipped with for across the hole of workpiece at the axle center of the clamp cover The circumference in hole, clamp cover is fixedly connected by bolt with chuck body front end.Clamp cover is set, workpiece can be prevented in processing The clast of generation damages fixture internal structure.
Compared with prior art, the beneficial effects of the utility model are embodied in following several respects:
(1) simple in structure, all degree of freedom of workpiece are all controlled by two top and wedge-shaped clamping units, are ensured Workpiece will not be moved in processing, improve product quality;
(2) cam rings and the gradient of tapered wedges are arranged to 7.0~8.5 ° so that and tapered wedges are moderate to the clamping force of workpiece, And workpiece loading and unloading is more convenient.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 is clamp cover, and 2 be tapered wedges, and 3 be cam rings, and 4 is top for No. two, and 5 be sleeve, and 6 be chuck body, 7 It is pedestal for pull head, 8,9 is top for No.1.
Specific implementation mode
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model It puts and is implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited In following embodiments.
Embodiment 1
A kind of floating clamping mechanism driving device for gear hobbing, structure is as shown in Figure 1, including pedestal 8, be arranged in pedestal 8 On chuck body 6, be arranged in chuck body 6 for clamp workpiece wedge-shaped clamping unit and be arranged in workpiece two end axles No.1 top 9 for resisting workpiece both ends and No. two top 4 at the heart, open up inner cone at the axle center of chuck body 6 along axis, No. two top 4 taper fits are fixed on inside chuck body 6.Wedge-shaped clamping unit includes being arranged in the oblique of 6 top of chuck body Wedge ring 3, the sleeve 5 for being arranged in the taper hole of chuck body 6 and being coaxially disposed with chuck body 6, setting are on 5 top of sleeve and tiltedly Multiple tapered wedges 2 that wedge ring 3 matches and the pull head 7 for pulling sleeve 5 to be moved along 6 major axes orientation of chuck body, when Pull head 7 pulls sleeve 5 to be moved away from the direction of No.1 top 9, and tapered wedges 2 are contacted and squeezed with cam rings 3 so that inclined wedge Ring 3 generates tapered wedges 2 centripetal extruding force, so that tapered wedges 2 generate clamping force to workpiece.By cam rings 3 and tiltedly Extruding between voussoir 2 generates the clamping force to workpiece, is more uniformly stressed, and oblique contract ring 3 can in a small amount move on sagittal plane, Overcome and top interference.And the setting of the utility model tapered wedges 2, cam rings 3, relative to similar product, structure is simpler It is single.
The top of sleeve 5 is equipped with the sliding rail arranged along 5 cross-section radial of a plurality of sleeve, and setting one is slided on every sliding rail Tapered wedges 2, where a plurality of sliding rail is evenly distributed on 5 top surface of sleeve on section.Sliding rail is set, can allow 2 edge of tapered wedges The movement of 5 cross-section radial of sleeve, facilitates clamp or release workpiece, and to the more adaptable of workpiece thickness.
6 front end of chuck body is equipped with clamp cover 1, is equipped with for the hole across workpiece, clamp cover at the axle center of clamp cover 1 1 circumference is fixedly connected by bolt with 6 front end of chuck body.Clamp cover 1 is set, can prevent workpiece from being generated in processing Clast damages fixture internal structure.
The operation principle of the present apparatus is as follows:
By No. two top 4, top 9 positioning of No.1, by tapered wedges 2 by product floating clamping mechanism, without influencing product Positioning accuracy.Pull head 7 pulls to the right sleeve 5, while driving tapered wedges 2, and oblique contract ring 3 will be along diameter while drawing to the right for tapered wedges 2 To a small amount of movements, until 3 oblique contract blocks 2 are uniformly contacted with oblique contract ring 3, oblique contract block 2 is uniformly contacted with workpiece.Oblique contract block 2 at this time By the resistance of cam rings 3, tapered wedges 2 are moved to the center of circle of sleeve top surface until clamping workpiece.
Cam rings 3 because the obstruction by chuck body 6 cannot move right, cam rings 3 in vertical plane can up and down before It is free to slide afterwards.On a vertical plane there are three tapered wedges 2, so three tapered wedges 2 are all simultaneously and inclined wedge in Workpiece clamping Ring 3 contacts, and the more presss from both sides the more tight, and clamping force can be generated by 7.5 ° of gradients of cam rings.
It when unclamping product, pushing away to the left by pull head 7, sleeve 5 is pushed to move downward, tapered wedges 2 also move downward at this time, with Cam rings 3 are detached from part and unclamp, and No.1 top 9 is unclamped, and workpiece is removed.

Claims (6)

1. a kind of floating clamping mechanism driving device for gear hobbing, which is characterized in that the device includes pedestal, is arranged on pedestal Chuck body is arranged in chuck body the wedge-shaped clamping unit for clamping workpiece and is arranged at the axle center of workpiece both ends and uses It is top and No. two are top in the No.1 that resists workpiece both ends, taper hole is opened up along axis at the axle center of the chuck body, it is described No. two top cooperations with taper hole are fixedly connected on inside chuck body.
2. a kind of floating clamping mechanism driving device for gear hobbing according to claim 1, which is characterized in that the wedge shape Clamping unit include be arranged chuck body top cam rings, be arranged in the taper hole of chuck body and with chuck body it is coaxial The multiple tapered wedges to match on sleeve top and cam rings are arranged and for pulling sleeve along fixture sheet in the sleeve of setting The pull head of body major axes orientation movement, the oblique contract block centripetal movement while, oblique contract ring can in a small amount move on sagittal plane, directly It is uniformly contacted with oblique contract ring to multiple oblique contract blocks, oblique contract block is uniformly contacted with workpiece, when pull head pulls sleeve away from No.1 Top direction movement, the tapered wedges are contacted and are squeezed with cam rings so that cam rings generate tapered wedges centripetal extruding Power, so that tapered wedges generate clamping force to workpiece.
3. a kind of floating clamping mechanism driving device for gear hobbing according to claim 2, which is characterized in that the sleeve Top is equipped with the sliding rail arranged along a plurality of sleeve cross-section radial, and one tapered wedges of setting, a plurality of sliding rail are slided on every sliding rail Where being evenly distributed on sleeve top surface on section.
4. a kind of floating clamping mechanism driving device for gear hobbing according to claim 2 or 3, which is characterized in that described oblique The number of voussoir is 3~5.
5. a kind of floating clamping mechanism driving device for gear hobbing according to claim 2, which is characterized in that the cam rings Distance close to the top side of No.1 to axle center is more than distance of the cam rings far from the top side of No.1 to axle center, and the gradient It it is 7.0~8.5 °, the gradient and the cam rings of the tapered wedges match.
6. a kind of floating clamping mechanism driving device for gear hobbing according to claim 1, which is characterized in that the fixture Ontology front end is equipped with clamp cover, is equipped with for the hole across workpiece at the axle center of the clamp cover, the circumference of clamp cover passes through Bolt is fixedly connected with chuck body front end.
CN201721689795.7U 2017-12-07 2017-12-07 A kind of floating clamping mechanism driving device for gear hobbing Expired - Fee Related CN207615800U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721689795.7U CN207615800U (en) 2017-12-07 2017-12-07 A kind of floating clamping mechanism driving device for gear hobbing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721689795.7U CN207615800U (en) 2017-12-07 2017-12-07 A kind of floating clamping mechanism driving device for gear hobbing

Publications (1)

Publication Number Publication Date
CN207615800U true CN207615800U (en) 2018-07-17

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ID=62821829

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721689795.7U Expired - Fee Related CN207615800U (en) 2017-12-07 2017-12-07 A kind of floating clamping mechanism driving device for gear hobbing

Country Status (1)

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CN (1) CN207615800U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108044204A (en) * 2017-12-07 2018-05-18 上海格尔汽车科技发展有限公司 A kind of floating clamping mechanism driving device for gear hobbing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108044204A (en) * 2017-12-07 2018-05-18 上海格尔汽车科技发展有限公司 A kind of floating clamping mechanism driving device for gear hobbing

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180717