CN104289734B

CN104289734B - A kind of thin-walled parts clamping device

Info

Publication number: CN104289734B
Application number: CN201410572631.0A
Authority: CN
Inventors: 何吉
Original assignee: HUZHOU CHENGJI MACHINERY CO Ltd
Current assignee: HUZHOU CHENGJI MACHINERY CO Ltd
Priority date: 2014-10-24
Filing date: 2014-10-24
Publication date: 2017-09-26
Anticipated expiration: 2034-10-24
Also published as: CN104289734A

Abstract

The invention discloses a kind of thin-walled parts clamping device, including three clamp systems fixed with scroll chuck, into 120 ° of angles between two neighboring clamp system, the clamp system includes fixing body, it is arranged on the installation screw on the fixing body, it is arranged on a pair of mounting blocks on the fixing body, it is arranged on the mounting groove on the mounting blocks, with the screw fixed hole in the mounting groove, the claw that is arranged in the mounting groove and it is arranged on and is used for the trip bolt for fixing the claw in the screw fixed hole, mounting blocks described in a pair are into 120 ° of angles, and the mounting groove described in a pair on mounting blocks is into 60 ° of angles, the surface of the fixing body and scroll chuck contact is provided with insertion groove and the latch positioned at the insertion groove both sides.The present invention is simple in construction, cheap, and operation is easy, can be good at solving the problem of thin-wall bearing part deforms when processing, it is ensured that the circularity of thin-wall bearing part.

Description

A kind of thin-walled parts clamping device

Technical field

The present invention relates to technical field of bearing processing, more specifically to a kind of thin-walled parts clamping device.

Background technology

In field of bearings, there are many thin-wall bearings, such as Patent publication No CN 102678741A, date of publication 2012.09.19 Chinese invention patent discloses a kind of non-standard thin-walled water-sealed bearing, including outer ring, inner ring, steel ball and nylon are protected Frame is held, described steel ball is arranged between outer ring and inner ring by nylon cages, and the middle inside of the outer ring is provided with and steel The outer gutter that ball is adapted, the outside of the inner ring is provided with the inclined ditch being adapted with steel ball, and the inclined ditch is located at the outside of inner ring Eccentric part, the inner ring has one section of portion that deflects away from for deflecting away from outer ring side, the outer diameter face for deflecting away from portion when being engaged with outer ring The interference fit contacted with using the sealing water proof rubber circle formation on the main frame of the bearing.

In the part to these thin-wall bearings（Inner ring, outer ring）When carrying out turning, because its wall ratio is relatively thin, a lot Wall ratio（Wall thickness/external diameter）In this region of 0.03-0.06, so thin part is stranded very much when being processed Difficulty, can not ensure its circularity, qualification rate is relatively low using traditional scroll chuck processing.

The content of the invention

It is an object of the invention to provide in view of the deficiencies of the prior art there is provided a kind of thin-walled parts clamping device, its Simple in construction, cheap, operation is easy, can be good at solving that thin-wall bearing part deforms when processing asks Topic, it is ensured that the circularity of thin-wall bearing part.

In order to solve the above-mentioned technical problem, technical scheme is as follows：A kind of thin-walled parts clamping device, including with Into 120 ° of angles, each described clamp system between three clamp systems that scroll chuck is fixed, two neighboring clamp system Including fixing body, be arranged on be used on the fixing body and scroll chuck fix installation screw, be arranged on the fixing body A pair of mounting blocks, be arranged on the mounting blocks mounting groove, be located in the mounting groove screw fixed hole, be arranged on institute Stating the claw in mounting groove and being arranged on is used for the trip bolt for fixing the claw in the screw fixed hole, described in a pair Mounting blocks are into 120 ° of angles, and mounting groove described in a pair on mounting blocks is into 60 ° of angles, the fixing body and the scroll chuck The surface of contact is provided with insertion groove and the latch positioned at the insertion groove both sides.

Preferably, the mounting groove include the second side that is oppositely arranged of first side and the first side and The intersecting groove floor with the first side, second side, the first side and the groove floor intersection are provided with the One stress relief groove, the second side and the groove floor intersection are provided with the second stress relief groove.

Preferably, first stress relief groove, the second stress relief groove cross section are circular arc.

Preferably, first stress relief groove include first eliminate groove first side, first eliminate groove second side, The first intersecting elimination groove bottom and the first contraction are opened with the described first elimination groove first side, the first elimination groove second side Mouthful, the first elimination groove first side, first eliminate groove second side for clinoplain, and described first eliminates the side of groove first The distance between face, the first elimination groove second side become larger with away from the described first contraction opening.

Preferably, second stress relief groove include second eliminate groove first side, second eliminate groove second side, The second intersecting elimination groove bottom and the second contraction are opened with the described second elimination groove first side, the second elimination groove second side Mouthful, the second elimination groove first side, second eliminate groove second side for clinoplain, and described second eliminates the side of groove first The distance between face, the second elimination groove second side become larger with away from the described second contraction opening.

Preferably, the claw includes claw body and the screw being arranged on the claw body, the claw Body is cuboid.

Preferably, the claw includes claw body, the screw being arranged on the claw body and is fixed on institute Claw body is stated provided with engaging nail.

Preferably, the engaging nail is provided with axially provided with the first arc surface, the second arc surface and three-arc Face, first arc surface, the second arc surface and three-arc face with one heart, and first arc surface, the second arc surface with And the radius in three-arc face successively decreases successively.

Preferably, the installation screw quantity is two, including counterbore and the through hole that is communicated with counterbore.

Preferably, the fixing body and the scroll chuck contact surface provided with caveli and with the caveli phase Provided with the internal elastomeric bladder filled with fluid in same multiple connection chambers, the caveli, the connection intracavitary is provided with and the bullet Property capsule contact sliding shoe, surface provided with clamping teeth clamping block and the steel between the sliding shoe and the clamping block Ball.

Preferably, the engaging nail is provided with a pair of radial skew sides, the pair of radial skew side into included angle A, Two adjacent radial skew sides are into angle C, the adjacent two radial skew side of two neighboring claw in each pair engaging nail Face is into included angle B, and included angle A, included angle B and angle C are the acute angle of coaxial line.

Preferably, the included angle B and angle C angles are equal；And 6 times of the included angle A scope is 180-300 °.

Beneficial effect of the present invention is：

The present invention is simple in construction, cheap, and operation is easy, can be good at solving thin-wall bearing part processing when The problem of time deforms, it is ensured that the circularity of thin-wall bearing part.

Brief description of the drawings

The present invention is described further below in conjunction with the accompanying drawings：

Fig. 1 is the structural representation of the embodiment of the present invention one；

Fig. 2 is the B-B schematic cross-sectional views in Fig. 1；

Fig. 3 is the structural representation of fixing body；

Fig. 4 is the A-A schematic cross-sectional views in Fig. 3；

Fig. 5 is the first structural representation of claw；

Fig. 6 is second of structural representation of claw；

Fig. 7 is Fig. 6 schematic top plan view；

Fig. 8 is the structural representation of the first stress relief groove；

Fig. 9 is the structural representation of the second stress relief groove；

Figure 10 is the structural representation of the embodiment of the present invention two；

Figure 11 is the structural representation of the embodiment of the present invention three.

Embodiment

As described below is only presently preferred embodiments of the present invention, and not the scope of the present invention is defined.

Embodiment 1, is shown in accompanying drawing 1,2,3,4,5,6,7,8,9, a kind of thin-walled parts clamping device, including consolidate with scroll chuck Into 120 ° of angles between three fixed clamp systems, two neighboring clamp system, each described clamp system includes fixing body 1st, be arranged on be used on the fixing body 1 and installation screw 2 that scroll chuck is fixed, be arranged on the fixing body 1 a pair Mounting blocks 3, the mounting groove 4 being arranged on the mounting blocks 3, the screw fixed hole 5 set in the mounting groove 4, it is arranged on institute Stating the claw 6 in mounting groove 4 and being arranged on is used for the trip bolt 7 for fixing the claw 6, peace in the screw fixed hole 5 Fill and mounting screw is provided with screw 2, and scroll chuck is fixed, the quantity of installation screw 2 is two, inside sets screw, it includes Counterbore and the through hole communicated with counterbore；Mounting blocks 3 described in a pair are into 120 ° of angles, and the installation described in a pair on mounting blocks 3 Groove 4 is into 60 ° of angles, and the surface of fixing body 1 and the scroll chuck contact is provided with insertion groove 8 and positioned at the insertion The latch 9 of the both sides of groove 8, the presence of latch 9 increases the frictional force with scroll chuck, can effectively prevent from installing after fixing The displacement of body, it is ensured that normal, the efficient operation of whole device.

The mounting groove 4 include the second side 402 that is oppositely arranged of first side 401 and the first side 401 and Intersecting groove floor 403, the first side 401 and the groove floor with the first side 401, second side 402 403 intersections are provided with the first stress relief groove 405, and second side 402 and the groove floor 403 intersection is provided with second Stress relief groove 406；First stress relief groove 405, the cross section of the second stress relief groove 406 are circular arc, the first stress Eliminating groove 405, the second stress relief groove 406 can be used for eliminating stress, simultaneously, additionally it is possible to which the iron filings for producing operation are arranged Remove, it is ensured that work is normally carried out.

Further, first stress relief groove 405 includes first elimination groove first side the 40501, first elimination groove Second side 40502 and described first eliminates the elimination groove of groove first side 40501, first second side 40502 intersecting first Eliminate groove bottom 40503 and first and shrink opening 40504, described first, which eliminates groove first side 40501, first, eliminates groove the Two side faces 40502 are clinoplain, and described first eliminate groove first side 40501, first eliminate groove second side 40502 it Between distance 40504 become larger with shrinking opening away from described first；Second stress relief groove 406 disappears including second Groove first side 40601, second is eliminated except groove first side 40601, second eliminates groove second side 40602 and described second Eliminate the second intersecting elimination groove bottom 40603 and second of groove second side 40602 and shrink opening 40604, described second disappears Except groove first side 40601, second eliminates groove second side 40602 for clinoplain, and described second eliminates groove first side 40601st, the distance between second elimination groove second side 40602 becomes larger with away from the described second contraction opening 40604.

The claw 6 includes claw body 601 and the screw 602 being arranged on the claw body 601, the claw Body 601 is cuboid.

In order to improve concentric effect, the claw 6 includes claw body 601, the spiral shell being arranged on the claw body 601 Hole 602 and the claw body 601 is fixed on provided with engaging nail 603, so, whole device is just provided with 6 engaging nails pair Bearing ring 10 is clamped, and forms 6 points of supports, it is ensured that clamping degree, and can prevent it from deforming, each pair engaging nail along It is axially arranged, bearing ring is clamped simultaneously when can be necessary again, further；The engaging nail 603 is provided with edge And be axially arranged with the first arc surface 604, the second arc surface 605 and three-arc face 606, first arc surface 604, second Arc surface 605 and three-arc face 606 are concentric, and first arc surface 604, the second arc surface 605 and three-arc The radius in face 606 successively decreases successively.

Embodiment 2, is shown in accompanying drawing 10；In the present embodiment, in order to improve the fixed effect with scroll chuck, installed described The surface that body 1 and the scroll chuck are contacted provided with caveli 11 and with the identical of caveli 11 is multiple connects chamber 12, institute State and the internal elastomeric bladder 13 filled with fluid is provided with caveli 11, be provided with what is contacted with the elastomeric bladder 13 in the connection chamber 12 The clamping block 16 of sliding shoe 14, surface provided with clamping teeth 15 and the steel between the sliding shoe 14 and the clamping block 16 Ball 17, clamping teeth is multiple, and elastomeric bladder part is stretched into connection chamber, when out-of-flatness occurs in scroll chuck contact, clamping Tooth stress is extruded elastomeric bladder 13, because filled with hydraulic oil, while clamping teeth is moved inward, elastomeric bladder in elastomeric bladder Interior oil pressure rise, applies higher pressure to remaining clamping teeth, it is ensured that clamping effect；Further, in order to improve clamping Effect, clamping block surface, which is provided with multiple circular holes, circular hole, is provided with slide post, and clamping teeth is fixed on slide post, and in clamping block Portion is hollow.

Embodiment 3, is shown in accompanying drawing 11；In order to improve clamping effect, the engaging nail 603 is provided with a pair of radial skew sides, So-called radial skew side, refers to that this is oppositely arranged to side, is not located at the both sides on engaging nail axial direction, but positioned at footpath Upward two, the pair of radial skew side is into included angle A, two adjacent radial skew sides in each pair engaging nail 603 Into angle C, adjacent two radial skew side of adjacent two engaging nail 603 of two neighboring claw 6 into included angle B, and Included angle A, included angle B and angle C are the acute angle of coaxial line, moreover, included angle A, included angle B and angle C's and for 60 °；Preferably, institute State included angle B and angle C angles are equal；And 6 times of the included angle A scope is 180-300 °.

Claims

1. a kind of thin-walled parts clamping device, it is characterised in that：Including three clamp systems fixed with scroll chuck, adjacent two Into 120 ° of angles between individual clamp system, each described clamp system includes fixing body（1）, be arranged on the fixing body（1） The upper installation screw for being used to fix with scroll chuck（2）, be arranged on the fixing body（1）On a pair of mounting blocks（3）, be arranged on The mounting blocks（3）On mounting groove（4）, be located at the mounting groove（4）Interior screw fixed hole（5）, be arranged on the installation Groove（4）Interior claw（6）And it is arranged on the screw fixed hole（5）It is interior to be used to fix the claw（6）Trip bolt （7）, mounting blocks described in a pair（3）Into 120 ° of angles, and mounting blocks described in a pair（3）On mounting groove（4）Into 60 ° of angles, institute State fixing body（1）Insertion groove is provided with the surface that the scroll chuck is contacted（8）And positioned at the insertion groove（8）Both sides Latch（9）;The mounting groove（4）Including first side（401）And the first side（401）The second side being oppositely arranged Face（402）And with the first side（401）, second side（402）Intersecting groove floor（403）, the first side （401）With the groove floor（403）Intersection is provided with the first stress relief groove（405）, the second side（402）With it is described Groove floor（403）Intersection is provided with the second stress relief groove（406）;First stress relief groove（405）Disappear including first Except groove first side（40501）, first eliminate groove second side（40502）And the first elimination groove first side （40501）, first eliminate groove second side（40502）Intersecting first eliminates groove bottom（40503）And first shrink opening （40504）, described first eliminates groove first side（40501）, first eliminate groove second side（40502）For clinoplain, and Described first eliminates groove first side（40501）, first eliminate groove second side（40502）The distance between with away from described First shrinks opening（40504）Become larger.

2. a kind of thin-walled parts clamping device according to claim 1, it is characterised in that：Second stress relief groove （406）Groove first side is eliminated including second（40601）, second eliminate groove second side（40602）And the second elimination groove First side（40601）, second eliminate groove second side（40602）Intersecting second eliminates groove bottom（40603）And second Shrink opening（40604）, described second eliminates groove first side（40601）, second eliminate groove second side（40602）Tilt flat Face, and the second elimination groove first side（40601）, second eliminate groove second side（40602）The distance between with remote Opening is shunk from described second（40604）Become larger.

3. a kind of thin-walled parts clamping device according to claim 1 or 2, it is characterised in that：The claw（6）Including card Pawl body（601）And it is arranged on the claw body（601）On screw（602）, the claw body（601）To be rectangular Body.

4. a kind of thin-walled parts clamping device according to claim 1 or 2, it is characterised in that：The claw（6）Including card Pawl body（601）, be arranged on the claw body（601）On screw（602）And it is fixed on the claw body（601）On Provided with engaging nail（603）.

5. a kind of thin-walled parts clamping device according to claim 4, it is characterised in that：The engaging nail（603）It is provided with A pair of radial skew sides, the pair of radial skew side is into included angle A, each pair engaging nail（603）In adjacent two radial directions Inclined side is into angle C, two neighboring claw（6）Adjacent two radial skew side into included angle B, and included angle A, included angle B And angle C is the acute angle of coaxial line.

6. a kind of thin-walled parts clamping device according to claim 5, it is characterised in that：The included angle B and angle C angles It is equal；And 6 times of the included angle A scope is 180-300 °.

7. a kind of thin-walled parts clamping device according to claim 1 or 2, it is characterised in that：The fixing body（1）And institute The surface for stating scroll chuck contact is provided with caveli（11）And with the caveli（11）The multiple connection chambers of identical（12）, it is described Caveli（11）It is interior to be provided with the internal elastomeric bladder filled with fluid（13）, the connection chamber（12）It is interior to be provided with and the elastomeric bladder（13） The sliding shoe of contact（14）, surface be provided with clamping teeth（15）Clamping block（16）And positioned at the sliding shoe（14）With the card Tight block（16）Between steel ball（17）.