CN219818877U

CN219818877U - Positioning tool clamp

Info

Publication number: CN219818877U
Application number: CN202320735654.3U
Authority: CN
Inventors: 王文康; 王金才; 周超; 贾浩
Original assignee: Kunshan Qingyang Precision Machinery Co ltd
Current assignee: Kunshan Qingyang Precision Machinery Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-10-13
Anticipated expiration: 2033-04-06

Abstract

The utility model relates to a positioning fixture, which comprises a base; the workbench is rotationally connected with the base, and is provided with a conical groove coaxial with the workbench and a plurality of guide grooves extending from the edge of the workbench to the center of the workbench; a plurality of clamping assemblies uniformly arranged around the center of the workbench, wherein the clamping assemblies comprise a support and a first driver in sliding connection with the support; the support is in sliding connection with the guide groove, and the first driver vertically slides along the support; the driving device is arranged on the base and comprises a second driver, the output end of the second driver is connected with the workbench in a meshed manner, and the second driver is arranged to be capable of driving the workbench to rotate around the axis of the second driver; the clamping assemblies limit the horizontal direction and the vertical direction of the workpiece, the workpieces with different sizes are handled, the driving device rotates and lifts the workpiece, and the conical grooves improve the stability of the workpiece and the clamp, so that the clamp is more flexible and wider in adaptability.

Description

Positioning tool clamp

Technical Field

The utility model relates to the technical field of machining, in particular to a positioning tool clamp.

Background

With the development of industry and the popularization of automation, the mechanical processing efficiency is gradually improved, meanwhile, the structure of a mechanical workpiece is gradually complicated, the size, the shape and even the quality of the mechanical workpiece are inconsistent, the difficulty of processing the mechanical workpiece is increased, and new requirements are put on a clamp related to the processing process.

The fixture is used for fixing the processing object in the mechanical manufacturing process so as to enable the processing object to occupy the correct position, so as to receive construction or detection; the existing clamp has single function and cannot flexibly cope with the problems of various processing objects, such as the angle of a workpiece needs to be manually adjusted for many times due to the fact that the clamp cannot flexibly rotate; or the problem that the clamp is easy to vibrate or even topple in the machining process due to the fact that the gravity centers of the workpiece and the clamp are not coincident; and the operation is complex in the use process, so that time and labor are consumed; in order to achieve both machining efficiency and workpiece yield, a more flexible and adaptable fixture is required.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to solve the problems that the clamp cannot flexibly rotate and the clamp and the workpiece are easy to vibrate in the prior art, so that the positioning fixture clamp is high in adaptability and the stability of the workpiece and the clamp is effectively improved.

In order to solve the technical problems, the utility model provides a positioning fixture, which comprises a base;

the workbench is rotationally connected with the base, and is provided with a conical groove coaxial with the workbench and a plurality of guide grooves extending from the edge of the workbench to the center of the workbench.

A plurality of clamping assemblies uniformly disposed about a center of the table, the clamping assemblies including a support and a first driver slidably coupled to the support; the support is in sliding connection with the guide groove, and the first driver vertically slides along the support.

The driving device is arranged on the base and comprises a second driver, the output end of the second driver is connected with the workbench in a meshed mode, and the second driver is arranged to be capable of driving the workbench to rotate around the axis of the workbench.

In one embodiment of the utility model, the driving device further comprises a third driver, an output end of the third driver is aligned with a through hole arranged in the center of the workbench, and the output end is arranged to pass through the through hole to reach one side of the workbench provided with the clamping assembly.

In one embodiment of the utility model, the table is provided with a mounting ring coaxial with the through hole, the mounting ring extending in the axial direction thereof.

In one embodiment of the utility model, the base is provided with a positioning ring corresponding to the through hole, the positioning ring extends along the axial direction of the base, and the mounting ring is sleeved outside the positioning ring.

In one embodiment of the utility model, two convex ribs are arranged on two sides of the guide groove, and an avoidance space is formed between the two convex ribs.

In one embodiment of the utility model, four guide grooves are included that are evenly distributed over the table.

In one embodiment of the utility model, the clamping assembly further comprises a fourth drive arranged on the support, the fourth drive being arranged to drive the first drive in the vertical direction of the support.

In one embodiment of the utility model, the support comprises a slide and a slide post connected with the slide, the slide is in profiling matching with the guide groove, and the slide post is connected with the second driver and the fourth driver.

In one embodiment of the utility model, a plurality of limiting grooves are formed in the bottom of the guide groove.

In one embodiment of the present utility model, the sliding seat is provided with a limiting through hole corresponding to the limiting groove.

In one embodiment of the present utility model, the output end of the third driver is further provided with a horn structure square-matched with the conical groove.

In one embodiment of the utility model, the base arrangement comprises three support columns evenly distributed.

In one embodiment of the utility model, the device further comprises a limit groove and the limit through hole are equal in size.

In one embodiment of the utility model, the clamping assembly further comprises a support plate slidably connected to the spool, the support plate being provided with a limit portion; the first driver is disposed on the support plate.

In one embodiment of the utility model, the sliding column is provided with a sliding rail extending along the vertical direction, and the sliding rail is in sliding connection with the limiting part.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the positioning fixture comprises a base; the workbench is rotationally connected with the base, and is provided with a conical groove coaxial with the workbench and a plurality of guide grooves extending from the edge of the workbench to the center of the workbench; a plurality of clamping assemblies uniformly disposed about a center of the table, the clamping assemblies including a support and a first driver slidably coupled to the support; the support is in sliding connection with the guide groove, and the first driver slides along the vertical direction of the support; the driving device is arranged on the base, the driving device comprises a second driver, the output end of the second driver is connected with the workbench in a meshed manner, and the second driver is arranged to be capable of driving the workbench to rotate around the axis of the second driver; the workbench is provided with a driving device for driving rotation, so that the action of manually adjusting the angle of a workpiece is reduced; the workbench is provided with a conical groove, and a workpiece slides down the bottom along the conical groove after being placed into the workbench, so that the workpiece is automatically adjusted to be coincident with the axis of the workbench, the vibration of the clamp is reduced, and the stability of the clamp is improved; the distance between the clamping component and the through hole is flexibly adjusted, so that the adaptability of the clamp is further improved.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which

Fig. 1 is a schematic structural diagram of a positioning fixture in a preferred embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a cross-sectional view of the positioning fixture shown in fig. 1.

Fig. 3 is a schematic structural view of a clamping assembly of the positioning fixture shown in fig. 1.

Fig. 4 is a schematic structural diagram of a top view of the positioning fixture shown in fig. 1.

Fig. 5 is a schematic structural view of a rear view of the clamping assembly shown in fig. 3.

Description of the specification reference numerals: 1. a base; 2. a work table; 3. a clamping assembly; 4. a conical groove; 5. a through hole; 6. an output of the third driver; 7. a guide groove; 8. a slide rail; 9. limiting through holes; 10. a support plate; 11. a fourth driver; 12. a first driver; 13. a third driver; 14. a second driver; 15. a limit groove; 16. a second gear; 17. a first gear; 18. a mounting ring; 19. a screw; 20. a positioning ring; 21. an avoidance space; 22. convex ribs; 23. a slide; 24. a sliding column.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Examples

In one embodiment of the present utility model, referring to fig. 1, a positioning fixture of the present utility model includes a base 1, where the base 1 includes three support columns and a cross beam disposed between the three support columns.

In one embodiment of the utility model, with reference to fig. 1, a table 2 comprising a circular structure is rotatably connected to the base 1; the workbench 2 is provided with a conical groove 4 coaxial with the workbench; the conical groove 4 is of an inverted conical structure, the volume of the conical groove 4 is larger than that of a workpiece, the workpiece is placed on the workbench 2 and slides down the bottom of the conical groove 4 along the side wall of the conical groove 4, so that the gravity center of the workpiece coincides with the center of the workbench 2, and the problem that the workbench 2 vibrates due to instability in working to reduce the limiting effect of a clamp is solved; and four guide grooves 7 extending from the edge of the table 2 toward the center of the table 2; the guide grooves 7 are used for facilitating the adjustment of the position of the clamping assembly 3 to accommodate workpieces of different volumes.

In one embodiment of the present utility model, referring to fig. 1, four clamping assemblies 3 including pushing action are provided uniformly around the center of the table 2, and the four clamping assemblies 3 clamp the workpiece from four directions of north and south of the east and west when the workpiece is placed on the table 2; the clamping assembly 3 comprises a support and a first driver 12 slidingly connected with the support; the support is inserted into the guide groove 7 from the edge of the workbench 2 and is in sliding connection with the guide groove, the first driver 12 slides along the vertical direction of the support, and the clamping assembly 3 is fixedly connected with the workbench 2 during working; the output of the first driver 12 is aligned with and pushes the workpiece.

In one embodiment of the utility model, with reference to figures 1 and 2, the driving means are provided on the cross beam of the base 1, below the table 2; the driving device comprises a second driver 14, a first gear 17 is arranged at the output end of the second driver 14, the first gear 17 is in meshed connection with a second gear 16 arranged on the workbench 2, and the axis of the first gear 17, the axis of the second gear 16 and the axis of the workbench 2 are parallel; the second driver 14 is provided to be able to drive the table 2 to rotate around the table 2 itself.

In one embodiment of the present utility model, referring to fig. 1 and 2, the driving device further includes a third driver 13 disposed below the center of the table 2, where an output end 6 of the third driver 13 is aligned with a through hole 5 disposed in the center of the table 2, and the output end is configured to pass through the through hole 5 to reach a side of the table 2 where the clamping assembly 3 is disposed, and the output end 6 of the third driver 13 is used to push the workpiece upward after the processing is finished, so that the workpiece is separated from the table 2, and the workpiece is convenient for a worker to take the workpiece off.

In one embodiment of the present utility model, referring to fig. 2, a mounting ring 18 is disposed on a side of the table 2 opposite to the clamping assembly 3, the mounting ring 18 is coaxial with the through hole 5, the mounting ring 18 extends along an axial direction thereof, and an inner wall of the mounting ring 18 is smooth; the second gear 16 is disposed outside of the mounting ring 18.

In one embodiment of the present utility model, referring to fig. 2, the base 1 is provided with a smooth positioning ring 20 corresponding to the mounting ring 18, the positioning ring 20 extends along the axial direction thereof, and the mounting ring 18 is sleeved outside the positioning ring 20; the friction force between the positioning ring 20 and the mounting ring 18 is small, and the positioning ring 20 plays a limiting role on the mounting ring 18, so that the workbench 2 can flexibly rotate.

In one embodiment of the present utility model, as shown in fig. 1, two sides of the guide groove 7 are respectively provided with a square protruding rib, the protruding ribs extend along the length direction of the guide groove 7, an avoidance space 21 is formed between the two protruding ribs, the two protruding ribs form a limit on the lower part structure of the support after the support is inserted into the guide groove 7, and the avoidance space 21 forms avoidance on the upper part structure of the support.

In one embodiment of the present utility model, referring to fig. 1, the four guide grooves 7 are uniformly distributed on the table 2, the four clamping assemblies 3 are respectively and correspondingly disposed on the four guide grooves 7, the clamping assemblies 3 can slide in the guide grooves 7 and be fixed on the guide grooves 7, and the provision of the guide grooves 7 is beneficial to adjusting the clamping range of the clamping assemblies 3.

In one embodiment of the utility model, referring to fig. 1, the clamping assembly 3 further comprises a fourth driver 11 arranged on the support, the fourth driver 11 being arranged below the first driver 12; the fourth driver 11 is fixedly connected with the first driver 12; the fourth driver 11 is configured to drive the first driver 12 up or down in the vertical direction of the stand; when the first driver 12 descends, the output end of the first driver compresses the workpiece from the top to form vertical limit; the clamping assemblies 3 are mutually matched to form limit positions on the workpiece in the horizontal and vertical directions.

In one embodiment of the present utility model, referring to fig. 1 and 5, the support comprises a sliding seat 23 and a sliding column 24 connected with the sliding seat 23, the sliding seat 23 is in profiling matching with the guiding groove 7, the sliding seat 23 is inserted into the guiding groove 7 from the edge of the workbench 2, and the guiding groove 7 plays a role in guiding and limiting the sliding seat 23; the spool 24 is fixedly connected to the fourth driver 11.

In one embodiment of the present utility model, referring to fig. 1 and 4, the bottom of the guiding groove 7 is provided with a plurality of equidistant limiting grooves 15, and the specific number is determined according to the area of the workbench 2, and is generally not less than four limiting grooves 15.

In one embodiment of the present utility model, referring to fig. 3 and 4, the sliding seat 23 is provided with a limit through hole 95 corresponding to the limit slot 15; preferably, the diameters of the limiting groove 15 and the limiting through hole 95 are consistent, when the position of the clamping assembly 3 is fixed, the position of the clamping assembly 3 is adjusted so that the limiting through hole 95 is opposite to the limiting groove 15, then the screw 19 is placed into the guide groove 7 from the avoidance space, and the limiting through hole 95 and the limiting groove 15 are inserted in alignment to form limiting.

In one embodiment of the present utility model, referring to fig. 1, the base 1 is provided with three support columns uniformly distributed, and the three support columns make the fixture more stable.

In one embodiment of the present utility model, referring to fig. 1, the clamping assembly 3 further includes a support plate 10 slidably connected to the sliding post 24, the support plate 10 is provided with a limit portion, and the limit portion forms a limit with the sliding post 24 so that the support plate 10 can slide up and down; the first driver 12 is provided on the support plate 10.

In one embodiment of the present utility model, referring to fig. 1, the sliding column 24 is provided with a sliding rail 8 extending vertically, and the sliding rail 8 is slidably connected with the limiting portion; the support plate 10 is sleeved on the slide rail 8 from the top of the slide column 24.

The working principle of the positioning fixture of the utility model is as follows:

the workpiece is aligned to the conical groove 4 and is placed on the workbench 2, the workpiece slides down to the bottom of the conical groove 4 along the side wall of the conical groove 4, the positions of the four clamping assemblies 3 are adjusted and fixed by screws 19, the first drivers 12 of the four clamping assemblies 3 push the workpiece horizontally, the fourth drivers 11 drive the supporting plate 10 to move downwards to drive the output ends of the first drivers 12 to press the workpiece, the first drivers 12 and the fourth drivers 11 of the four clamping assemblies 3 are matched with each other, the workpiece is clamped from the five directions of east, west, south and north, and the top, and when the workpiece with larger or smaller volume needs to be clamped, the four clamping assemblies 3 are moved and fixed close to or far from the center of the workbench 2, so that the working suitability of the clamp can be further improved; when the workpiece is required to be rotated to match with the machining process, the second driver 14 is started to drive the workbench 2 to rotate so as to drive the workpiece to rotate; after the machining is finished, the limit of the clamping assembly 3 is released, and the output end 6 of the third driver 13 penetrates through the through hole 5 to push the workpiece so that the workpiece is separated from the workbench 2, so that the workpiece is conveniently taken out by hands, and the working strength is reduced; the conical groove 4 enables the workpiece to coincide with the center of the workbench 2; the vibration of the workpiece and the workbench 2 in the adding process is reduced, and the stability of the workbench 2 is improved.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. A positioning fixture is characterized by comprising,

a base;

the workbench is rotationally connected with the base, and is provided with a conical groove coaxial with the workbench and a plurality of guide grooves extending from the edge of the workbench to the center of the workbench;

a plurality of clamping assemblies uniformly disposed about a center of the table, the clamping assemblies including a support and a first driver slidably coupled to the support; the support is in sliding connection with the guide groove, and the first driver slides along the vertical direction of the support;

2. A positioning tool fixture according to claim 1, wherein the driving device further comprises a third driver, an output end of the third driver is aligned with a through hole arranged in the center of the workbench, and the output end is arranged to pass through the through hole to reach one side of the workbench provided with the clamping assembly.

3. A positioning tool fixture according to claim 2, wherein the work table is provided with a mounting ring coaxial with the through hole, the mounting ring extending in the axial direction thereof.

4. A positioning fixture according to claim 3, wherein the base is provided with a positioning ring corresponding to the through hole, the positioning ring extends along the axial direction thereof, and the mounting ring is sleeved outside the positioning ring.

5. The positioning fixture of claim 1, wherein two ribs are arranged on two sides of the guide groove, and an avoidance space is formed between the two ribs.

6. A positioning tooling fixture according to claim 1, comprising four guide slots uniformly distributed on the table.

7. A positioning tooling fixture as set forth in claim 1 wherein said clamping assembly further includes a fourth drive disposed on said support, said fourth drive being configured to drive said first drive in a vertical direction of said support.

8. The positioning tooling fixture of claim 7, wherein the support comprises a slide and a slide post connected to the slide, the slide is profiled to mate with the guide slot, and the slide post is connected to the second driver and the fourth driver.

9. The positioning fixture of claim 8, wherein the bottom of the guide slot is provided with a plurality of limit slots.

10. The positioning fixture of claim 9, wherein the slide seat is provided with a limiting through hole corresponding to the limiting groove.