CN214263937U

CN214263937U - Multi-station rotating automatic positioning tool

Info

Publication number: CN214263937U
Application number: CN202022439584.6U
Authority: CN
Inventors: 张小昌; 李敏; 徐金海; 徐新华
Original assignee: Zhejiang Keli Vehicle Control System Co Ltd
Current assignee: Zhejiang Keli Vehicle Control System Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-09-24
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a work piece presss from both sides tight frock technical field, discloses a rotatory automatic positioning frock of multistation, including last jack catch (1) and lower jack catch (2), still include locating piece (3), locating piece (3) are located one side of jack catch (1) and lower jack catch (2), one side of locating piece (3) is equipped with stop screw (5) that are used for fixing a position work piece (4), the both sides of locating piece (3) are equipped with sloping block (6) respectively, stop screw (5) are located between sloping block (6), upward be equipped with pressure head (7) on jack catch (1), upward pressure head (7) are located the lower terminal surface of jack catch (1) opposite side, the opposite side of lower jack catch (2) is equipped with centering supporting shoe (8) of being connected with lower jack catch (2). The utility model discloses go up the jack catch, lower jack catch, locating piece carry out the clamping to the trilateral of work piece, improve the precision of clamping, the jack catch rotates down, conveniently adjusts the different angle of work piece and processes.

Description

Multi-station rotating automatic positioning tool

Technical Field

The utility model relates to a work piece presss from both sides tight frock technical field, especially relates to a rotatory automatic positioning frock of multistation.

Background

The traditional turning of the automobile accessory product mainly comprises the following three steps: 1. lathing a step surface and a hole of an inner hole; 2. turning the other end of the step surface by taking the step surface and the hole as a reference; 3. and turning the end surface boss and the hole by taking the inner hole step surface as a reference. Therefore, three devices are needed for processing one product, the processing and debugging time is long, and more operators are equipped. And the unstable deviation of blank thickness is great, and the difference of depth of two hole steps is big, and the blank processing must be selected to the general processing still, so not only inefficiency, the cost of labor is high, and the quality is difficult to guarantee. Like chinese utility model patent CN201920062420.0 discloses a rotatory frock of auto-parts, include: the support comprises support columns symmetrically arranged at two ends and cross braces horizontally erected among the support columns; the cross brace is provided with a first through hole, a second through hole and a third through hole; the hanging part mechanism comprises a hanging rod and a rotating rod; the hanging rod penetrates through the first through hole, and a plurality of limiting supports are arranged at the top end of the hanging rod; the first end of the rotating rod penetrates into the hanging rod in a mode of rotating and sliding along the inner wall of the hanging rod; the second end of the rotating rod extends vertically downwards, and a hanging hole is formed in the second end of the rotating rod; the limiting mechanism comprises a rotating shaft and a chain; the rotating shaft is erected above the third through hole respectively, one end of the chain is wound on the rotating shaft, and the other end of the chain is fixedly connected with the first end of the rotating rod. The working structure is simple, the clamping stability is poor, and large machining errors are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the shortcoming that the processing step is loaded down with trivial details, the clamping precision is low among the prior art, a rotatory automatic positioning frock of multistation that processing step is simple, the clamping precision is high is provided.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the utility model provides a rotatory automatic positioning frock of multistation, including last jack catch and lower jack catch, still include the locating piece, the locating piece is located one side of jack catch and lower jack catch, one side of locating piece is equipped with the stop screw who is used for fixing a position the work piece, the both sides of locating piece are equipped with the sloping block respectively, but the sloping block lateral shifting in the both sides of locating piece, stop screw is located between the sloping block, upward be equipped with the pressure head on the jack catch, it is located the lower terminal surface of jack catch opposite side to go up the pressure head, the opposite side of lower jack catch is equipped with the centering supporting shoe of being connected with lower jack catch. The upper clamping jaw, the lower clamping jaw and the positioning block clamp three surfaces of a workpiece, the upper pressure head compresses the upper end of the workpiece, the limiting screw abuts against the rear end of the workpiece, the inclined block moves towards the direction of the workpiece during clamping, the workpiece is fixed, the stability of workpiece clamping is improved, and the workpiece is automatically centered through the centering support block during clamping, so that the clamping precision is improved.

As the preferred, all seted up the constant head tank on the side of going up jack catch and lower jack catch one side, the lower extreme of locating piece be located the constant head tank of jack catch down and with jack catch fixed connection down, the upper end of locating piece be located the constant head tank of jack catch, go up the jack catch and reciprocate along the locating piece. Go up the jack catch at the in-process that reciprocates, the locating piece plays the guide effect for last jack catch through the constant head tank, improves the position precision that the jack catch reciprocated, goes up the jack catch simultaneously when promoting the sloping block and remove, improves the sloping block and goes up the stability that the jack catch removed.

Preferably, the upper end face and the lower end face of the inclined block are both first inclined faces, the upper clamping jaw and the lower clamping jaw are provided with second inclined faces matched with the first inclined faces, and the first inclined faces are located between the second inclined faces and abut against the second inclined faces. When the upper clamping jaw moves downwards, the first inclined plane on the upper clamping jaw extrudes the second inclined plane to the middle part of the positioning block, so that the inclined block is pushed to move towards the middle part of the positioning block to clamp a workpiece, the upper clamping jaw and the inclined block are linked to clamp the workpiece, the stability and the precision of workpiece clamping are improved, and the clamping structure and the clamping mode of the workpiece are simplified.

Preferably, a compression spring with two ends respectively abutting against the inclined blocks is arranged between the inclined blocks, a screw hole and a spring groove are formed in each inclined block, a set screw penetrates through the screw hole, and two ends of the compression spring penetrate through the spring groove and are sleeved on the set screw. Compression spring provides the thrust of keeping away from the locating piece middle part for the sloping block, and compression spring's thrust offsets with last jack catch for the pressure that the sloping block applyed, improves the stability of sloping block position, prevents that the sloping block is not hard up to cause the work piece not hard up, and when last jack catch rebound loosened the work piece simultaneously, the sloping block moved to the direction of keeping away from the locating piece middle part under compression spring's thrust to loosen the work piece, made things convenient for the clamp of work piece tightly and loosened.

Preferably, one side of the inclined block is connected with the positioning block through a connecting screw, the connecting screw penetrates through the inclined block and the positioning block, a bump is arranged on the inner side face, close to the limiting screw, of the inclined block, and the bump is located on the other side of the inclined block and located at the upper end and the lower end of the positioning block respectively. A moving gap is reserved between the inclined block and the positioning block, the connecting screw is connected with the inclined block and the positioning block on one hand, and on the other hand, the inclined block moves along the connecting screw, so that a guiding effect is achieved for the transverse movement of the inclined block, and the inclined block can conveniently move on two sides of the positioning block.

Preferably, the other side of the lower jaw is provided with a step seat, the centering support block is positioned on the step seat and is fixedly connected with the lower jaw, and the upper end of the centering support block is provided with a V-shaped groove. The centering support block is provided with the V-shaped groove, so that the workpiece can be centered automatically in the clamping process, the position of the workpiece can be adjusted automatically in the clamping process conveniently, and the position precision of the workpiece is improved.

Preferably, the upper end of the upper clamping jaw is provided with an arc groove, an arc pressure head and a locking screw are arranged above the upper clamping jaw, the locking screw penetrates through the upper clamping jaw and the arc pressure head, and the lower end of the arc pressure head is provided with an arc surface matched with the arc groove. The contact area between the arc pressure head and the upper jaw is increased, when the arc pressure head applies force to the upper jaw, the force bearing surface of the upper jaw is more uniform, and when the arc pressure head pushes the upper jaw to move downwards to clamp a workpiece, the stability of the upper jaw when moving downwards to clamp the workpiece is improved.

Preferably, the lower jaw is provided with a hard tooth cushion block, the upper end face of the lower jaw is provided with a cushion block groove, and the hard tooth cushion block is positioned in the cushion block groove. When a workpiece is clamped, the hard tooth cushion block is in contact with the lower end of the workpiece, the positioning teeth are used for positioning the lower end of the workpiece, the stability of the bottom of the workpiece during clamping and machining is improved, and the bottom of the workpiece is prevented from moving.

Preferably, the locking device further comprises a rotary chuck, a piston hole is formed in the rotary chuck, a chuck piston moving up and down in the piston hole is arranged in the piston hole, a pressure head hole is formed in the chuck piston, the arc pressure head penetrates through the pressure head hole, and the upper end of the locking screw is in threaded connection with the chuck piston. The chuck piston drives the upper jaw to move up and down through the arc pressure head, so that the stability of the upper jaw during moving up and down and clamping is improved.

Preferably, the rotary chuck is further provided with a chuck driving shaft and a turntable groove, the lower end face of the lower jaw is provided with a turntable matched with the turntable groove, the turntable is located in the turntable groove and above the chuck driving shaft, a rotating shaft connected with the turntable is arranged below the turntable, and the chuck driving shaft is connected with the rotating shaft. The chuck drive shaft drives the lower jaw to rotate through the rotating shaft, so that different angles of the workpiece can be conveniently adjusted for processing, repeated clamping of the workpiece is avoided, and the workpiece processing efficiency is improved.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: go up the jack catch, lower jack catch, the locating piece is to trilateral clamping of work piece, it compresses tightly the upper end of work piece to go up the pressure head, stop screw supports with the rear end of work piece, during the clamping, the sloping block removes to the work piece direction, fix the work piece, improve the stability of work piece clamping, the work piece is through centering supporting shoe self-centering at the clamping in-process, the precision of clamping is improved, the jack catch rotates under the chuck drive shaft drives through the pivot, conveniently adjust the different angle of work piece and process, the repeated clamping of work piece has been avoided, the work piece machining efficiency is improved.

Drawings

Fig. 1 is a schematic front view of the structure of embodiment 1 and embodiment 2 of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure a-a in fig. 1.

Fig. 3 is a schematic side view of the structure of embodiment 1 and embodiment 2 of the present invention.

Fig. 4 is a schematic view of a cross-sectional structure B-B in fig. 3.

Fig. 5 is a schematic view of the cross-sectional structure C-C in fig. 3.

Fig. 6 is a schematic diagram of the explosion structure of the present invention.

Fig. 7 is a schematic sectional structure diagram of embodiment 3 of the present invention.

Fig. 8 is a schematic perspective view of embodiment 3 of the present invention.

The names of the parts indicated by the numerical references in the drawings are as follows: 1-upper clamping jaw, 2-lower clamping jaw, 3-positioning block, 4-workpiece, 5-limit screw, 6-oblique block, 7-upper pressing head, 8-centering supporting block, 9-step seat, 10-V-shaped groove, 11-positioning groove, 12-first inclined plane, 13-second inclined plane, 14-compression spring, 15-screw hole, 16-spring groove, 17-set screw, 18-connecting screw, 19-lug, 20-arc groove, 21-arc pressing head, 22-locking screw, 23-arc surface, 24-hard tooth cushion block, 25-cushion block groove, 26-adjusting gasket, 27-positioning tooth, 28-rotating chuck, 29-piston hole, 30-chuck piston, 31-pressing head hole, 32-chuck driving shaft, 33-rotating disk groove, 34-rotating disk, 35-rotating shaft, 36-strip-shaped positioning block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The utility model provides a rotatory automatic positioning frock of multistation, as shown in fig. 1 to 6, including last jack catch 1 and lower jack catch 2, still include locating piece 3, locating piece 3 is located one side of jack catch 1 and lower jack catch 2, one side of locating piece 3 is equipped with stop screw 5 that is used for positioning workpiece 4, stop screw 5 rotates at locating piece 3 and can carries out length adjustment, thereby adapt to different work pieces, the both sides of locating piece 3 are equipped with sloping block 6 respectively, stop screw 5 is located between sloping block 6 and is located the middle part of locating piece 3, upward be equipped with pressure head 7 on the jack catch 1, upward pressure head 7 and last jack catch 1 threaded connection, upward pressure head 7 can reciprocate on last jack catch 1, upward pressure head 7 is located the lower terminal surface of last jack catch 1 opposite side, the opposite side of lower jack catch 2 is equipped with centering supporting shoe 8 that is connected with lower jack catch 2. The other side of the lower jaw 2 is provided with a step seat 9, the centering support block 8 is positioned on the step seat 9 and is fixedly connected with the lower jaw 2, and the upper end of the centering support block 8 is provided with a V-shaped groove 10.

Go up jack catch 1 and all seted up constant head tank 11 on the side of jack catch 2 one side down, the lower extreme of locating piece 3 be located jack catch 2's constant head tank 11 down and with jack catch 2 fixed connection down, the lower extreme of lower jack catch 2 passes through connecting bolt and lower extreme fixed connection of jack catch 2 down, the upper end of locating piece 3 is located jack catch 1's constant head tank 11, goes up jack catch 1 and reciprocates along locating piece 3.

The upper end face and the lower end face of the inclined block 6 are both first inclined faces 12, the upper clamping jaw 1 and the lower clamping jaw 2 are provided with second inclined faces 13 matched with the first inclined faces 12, and the first inclined faces 12 are located between the second inclined faces 13 and abut against the second inclined faces 13. The second inclined surface 13 on the upper claw 1 moves up and down to push the first inclined surface 12 of the inclined block 6, and the transverse movement of the inclined block 6 is controlled. Be equipped with the compression spring 14 that both ends offset with sloping block 6 respectively between the sloping block 6, compression spring 14's quantity is two and parallel arrangement, and stop screw 5 is located between compression spring 14, has seted up screw hole 15 and spring groove 16 on the sloping block 6, wears to establish in the screw hole 15 and is equipped with holding screw 17, and compression spring 14's both ends are worn to establish in spring groove 16 and the cover is established on holding screw 17, and compression spring 14's both ends offset with the bottom in spring groove 16 respectively. One side of the inclined block 6 is connected with the positioning block 3 through a connecting screw 18, the connecting screw 18 penetrates through the inclined block 6 and the positioning block 3, the number of the connecting screws 18 is two, the two connecting screws are arranged in an up-and-down parallel mode, a moving gap is reserved between the inclined block 6 and the positioning block 3, the connecting screw 18 plays a guiding role in transverse movement of the inclined block 6, a convex block 19 is arranged on the inner side face, close to the limiting screw 5, of the inclined block 6, and the convex block 19 is located on the other side of the inclined block 6 and located at the upper end and the lower end of the positioning.

Example 2

The upper end face and the lower end face of the inclined block 6 are both first inclined faces 12, the upper clamping jaw 1 and the lower clamping jaw 2 are provided with second inclined faces 13 matched with the first inclined faces 12, and the first inclined faces 12 are located between the second inclined faces 13 and abut against the second inclined faces 13. The second inclined surface 13 on the upper claw 1 moves up and down to push the first inclined surface 12 of the inclined block 6, and the transverse movement of the inclined block 6 is controlled. Be equipped with the compression spring 14 that both ends offset with sloping block 6 respectively between the sloping block 6, compression spring 14's quantity is two and parallel arrangement, and stop screw 5 is located between compression spring 14, has seted up screw hole 15 and spring groove 16 on the sloping block 6, wears to establish in the screw hole 15 and is equipped with holding screw 17, and compression spring 14's both ends are worn to establish in spring groove 16 and the cover is established on holding screw 17, and compression spring 14's both ends offset with the bottom in spring groove 16 respectively. One side of the inclined block 6 is connected with the positioning block 3 through a connecting screw 18, the connecting screw 18 penetrates through the inclined block 6 and the positioning block 3, the number of the connecting screws 18 is two, the two connecting screws are arranged in an up-and-down parallel mode, a moving gap is reserved between the inclined block 6 and the positioning block 3, the connecting screw 18 plays a guiding role in transverse movement of the inclined block 6, a convex block 19 is arranged on the inner side face, close to the limiting screw 5, of the inclined block 6, and the convex block 19 is located on the other side of the inclined block 6 and located at the upper end and the lower end of the positioning block 3 respectively.

The upper end of the upper clamping jaw 1 is provided with an arc groove 20, an arc pressure head 21 and a locking screw 22 are arranged above the upper clamping jaw 1, the locking screw 22 transversely penetrates through the upper clamping jaw 1 and the arc pressure head 21, and the lower end of the arc pressure head 21 is provided with an arc surface 23 matched with the arc groove 20. Be equipped with hard tooth cushion 24 on the jack catch 2 down, hard tooth cushion 24 passes through set screw and is connected with jack catch 2 down, has seted up cushion groove 25 on the up end of jack catch 2 down, and hard tooth cushion 24 is located cushion groove 25, and the bottom of cushion groove 25 is equipped with adjusting shim 26, and adjusting shim 26 is located the below of hard tooth cushion 24, is equipped with the location tooth 27 that the equipartition set up on the up end of hard tooth cushion 24.

Example 3

The utility model provides a rotatory automatic positioning frock of multistation, as shown in fig. 1 to 8, includes above the rotatory automatic positioning frock clamp of multistation, still include rotary chuck 28, be equipped with piston hole 29 on the rotary chuck 28, be equipped with the chuck piston 30 that reciprocates in piston hole 29 in the piston hole 29, seted up pressure head hole 31 in the chuck piston 30, circular arc pressure head 21 is worn to establish in pressure head hole 31, locking screw 22's upper end and chuck piston 30 threaded connection.

The rotary chuck 28 is further provided with a chuck driving shaft 32 and a chuck groove 33, the lower end face of the lower jaw 2 is provided with a rotary disc 34 matched with the rotary disc groove 33, the rotary disc 34 is positioned in the rotary disc groove 33 and positioned above the chuck driving shaft 32, a rotating shaft 35 connected with the rotary disc 34 is arranged below the rotary disc 34, a strip-shaped positioning block 36 is arranged between the rotating shaft 35 and the rotary disc 34, the strip-shaped positioning block 36 is positioned in the chuck driving shaft 32, so that the rotary disc 34 and the chuck driving shaft 32 can synchronously rotate, and the chuck driving shaft 32 is connected with the rotating shaft 35.

When the clamping device works, a workpiece 4 is placed on a lower clamping jaw 2, the lower end of the workpiece 4 is provided with a tooth form matched with a hard tooth cushion block 24, the front end of the workpiece 4 is placed in a V-shaped groove 10, the rear end of the workpiece 4 is abutted against a limiting screw 5 on a positioning block 3, hydraulic oil is communicated to enable a chuck piston 30 to move downwards, an arc pressure head 21 fixed on the chuck piston 30 synchronously moves downwards, an upper clamping jaw 1 moves downwards under the pushing of the arc pressure head 21, an upper pressure head 7 on the upper clamping jaw 1 presses the workpiece 4, a second inclined surface 13 on the upper clamping jaw 1 moves downwards to push a first inclined surface 12 to enable an inclined block 6 to move towards the middle part of the positioning block 3 in the downward moving process of the upper clamping jaw 1, a lug 19 on the inclined block 6 moves towards the direction of the workpiece 4 and gradually clamps the workpiece 4, the front end of the workpiece 4 is positioned in the V-shaped groove 10, automatic centering is realized in the clamping process, after the first processing surface of the workpiece 4 is finished, the chuck driving shaft 32 drives the lower jaw 2 to rotate 90 degrees through the rotating shaft 35 to continue to process the second processed surface, and after the second processed surface is processed, the chuck driving shaft 32 drives the lower jaw 2 to rotate 180 degrees through the rotating shaft 35 to continue to process the third processed surface.

Claims

1. The utility model provides a rotatory automatic positioning frock of multistation, includes jack catch (1) and lower jack catch (2), its characterized in that: still include locating piece (3), locating piece (3) are located one side of jack catch (1) and lower jack catch (2), one side of locating piece (3) is equipped with stop screw (5) that are used for fixing a position work piece (4), the both sides of locating piece (3) are equipped with sloping block (6) respectively, but sloping block (6) lateral shifting in the both sides of locating piece (3), stop screw (5) are located between sloping block (6), upward be equipped with pressure head (7) on jack catch (1), it is located the lower terminal surface of jack catch (1) opposite side to go up pressure head (7), the opposite side of lower jack catch (2) is equipped with centering supporting shoe (8) of being connected with lower jack catch (2).

2. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: go up jack catch (1) and all seted up constant head tank (11) on the side of jack catch (2) one side down, the lower extreme of locating piece (3) be located down in constant head tank (11) of jack catch (2) and with jack catch (2) fixed connection down, the upper end of locating piece (3) be located constant head tank (11) of jack catch (1) in, go up jack catch (1) and reciprocate along locating piece (3).

3. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: the upper end face and the lower end face of the inclined block (6) are both first inclined planes (12), the upper clamping jaw (1) and the lower clamping jaw (2) are provided with second inclined planes (13) matched with the first inclined planes (12), and the first inclined planes (12) are located between the second inclined planes (13) and are abutted to the second inclined planes (13).

4. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: be equipped with compression spring (14) that both ends offset with sloping block (6) respectively between sloping block (6), seted up screw hole (15) and spring groove (16) on sloping block (6), wear to be equipped with holding screw (17) in screw hole (15), the both ends of compression spring (14) are worn to establish in spring groove (16) and are established on holding screw (17).

5. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: one side of the inclined block (6) is connected with the positioning block (3) through a connecting screw (18), the connecting screw (18) penetrates through the inclined block (6) and the positioning block (3), a bump (19) is arranged on the inner side face, close to the limiting screw (5), of the inclined block (6), and the bump (19) is located on the other side of the inclined block (6) and located at the upper end and the lower end of the positioning block (3) respectively.

6. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: the other side of the lower clamping jaw (2) is provided with a step seat (9), the centering support block (8) is positioned on the step seat (9) and is fixedly connected with the lower clamping jaw (2), and the upper end of the centering support block (8) is provided with a V-shaped groove (10).

7. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: circular arc recess (20) have been seted up to the upper end of going up jack catch (1), and the top of going up jack catch (1) is equipped with circular arc pressure head (21) and locking screw (22), and locking screw (22) run through in last jack catch (1) and circular arc pressure head (21), and the lower extreme of circular arc pressure head (21) is equipped with circular arc surface (23) with circular arc recess (20) looks adaptation.

8. The multi-station rotary automatic positioning tool according to claim 1, characterized in that: hard tooth cushion blocks (24) are arranged on the lower jaw (2), cushion block grooves (25) are formed in the upper end face of the lower jaw (2), and the hard tooth cushion blocks (24) are located in the cushion block grooves (25).

9. The multi-station rotary automatic positioning tool according to claim 7, characterized in that: the novel locking device is characterized by further comprising a rotating chuck (28), a piston hole (29) is formed in the rotating chuck (28), a chuck piston (30) moving up and down in the piston hole (29) is arranged in the piston hole (29), a pressure head hole (31) is formed in the chuck piston (30), an arc pressure head (21) is arranged in the pressure head hole (31) in a penetrating mode, and the upper end of a locking screw (22) is in threaded connection with the chuck piston (30).

10. The multi-station rotary automatic positioning tool according to claim 9, characterized in that: the rotary chuck (28) is further provided with a chuck driving shaft (32) and a turntable groove (33), the lower end face of the lower clamping jaw (2) is provided with a turntable (34) matched with the turntable groove (33), the turntable (34) is located in the turntable groove (33) and located above the chuck driving shaft (32), a rotating shaft (35) connected with the turntable (34) is arranged below the turntable (34), and the chuck driving shaft (32) is connected with the rotating shaft (35).