CN219254177U

CN219254177U - Compressed pneumatic clamping jaw

Info

Publication number: CN219254177U
Application number: CN202223470259.1U
Authority: CN
Inventors: 方开亮
Original assignee: Shanghai Tongcheng Enterprise Development Co ltd
Current assignee: Shanghai Tongcheng Enterprise Development Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-06-27
Anticipated expiration: 2032-12-23

Abstract

The utility model relates to a pneumatic clamping jaw field especially relates to a pneumatic clamping jaw of compress tightly, and it includes mount pad and two at least jack catch that are used for carrying out the centre gripping to the solid of revolution work piece, still including compressing tightly the subassembly, compressing tightly the subassembly and installing on the mount pad, a plurality of one side that the jack catch is close to each other all is provided with the block, the block is located one side that the mount pad was kept away from to the work piece, compressing tightly the subassembly and being used for exerting the work piece along the work piece axis to keep away from the ascending power of the direction of mount pad. The pneumatic clamping jaw clamping workpiece clamping device has the effect of improving stability of the pneumatic clamping jaw clamping workpiece.

Description

Compressed pneumatic clamping jaw

Technical Field

The application relates to the technical field of pneumatic clamping jaws, in particular to a compression type pneumatic clamping jaw.

Background

The pneumatic clamping jaw is an executing device for grabbing a workpiece by using compressed air as power. The pneumatic clamping jaw is simple in structure and convenient to maintain, and is widely applied to the field of automatic processing. The pneumatic clamping jaw and the mechanical arm are matched to finish the picking and placing operation of the workpiece. With the development of the automation industry, the variety of pneumatic clamping jaws is also increased.

The related art discloses a pneumatic three-jaw chuck, including mount pad and three jack catch, three jack catch is around mount pad axis evenly distributed. The driving device is arranged on the mounting seat, and the clamping jaws can be driven to be close to or far away from each other through the driving device, so that the workpiece is clamped and put down.

When the clamping jaw clamps a revolving body type workpiece, the side face of the clamping jaw is tangent to and abutted against the side face of the workpiece. For parts with higher surface requirements, a smaller clamping force is generally adopted to clamp the workpiece. Under the condition of smaller clamping force, the clamping stability of the clamping jaw is not high. The revolving body type parts slide along the length direction easily, so that the parts fall off in the conveying process, or the workpieces cannot be placed at the designated positions.

Disclosure of Invention

In order to improve stability of a pneumatic clamping jaw grabbing a workpiece, the application provides a compression type pneumatic clamping jaw.

The application provides a pneumatic clamping jaw of compressed type adopts following technical scheme:

the utility model provides a pneumatic clamping jaw of compressed tightly, includes mount pad and at least two jack catch that are used for carrying out the centre gripping to the solid of revolution work piece, still includes compressing tightly the subassembly, compressing tightly the subassembly and installing on the mount pad, a plurality of the jack catch is close to each other one side all is provided with the blocking piece, the blocking piece is located the one side that the mount pad was kept away from to the work piece, compressing tightly the subassembly and being used for exerting the work piece along the work piece axis to keep away from the epaxial power of direction of mount pad.

Through adopting above-mentioned technical scheme, pneumatic clamping jaw is got the back to the work piece clamp, and the work piece is kept away from one side and the blocking piece butt of mount pad to can block the work piece and drop from pneumatic clamping jaw in pneumatic clamping jaw handling. The workpiece is pressed by the pressing component from one side of the space, which is far away from the blocking block, so that the workpiece can be reduced from moving towards the direction, which is close to the mounting seat. The clamping jaw, the blocking block and the pressing component limit the workpiece from different positions of the workpiece respectively, so that the stability of the pneumatic clamping jaw in the workpiece conveying process is improved.

Optionally, a mounting plate is arranged between the pressing component and the mounting seat, the mounting plate is mounted on the mounting seat, and the pressing component is mounted on the mounting plate.

Through adopting above-mentioned technical scheme, will compress tightly the subassembly through the mounting panel and connect on the mount pad, not only made things convenient for the installation of compressing tightly the subassembly. And the influence of the installation of the compression assembly on the change of the structure of the pneumatic clamping jaw can be reduced, and the pneumatic clamping jaw is convenient to manufacture and process.

Optionally, the compression assembly includes pressure strip and compression spring, the pressure strip is located between work piece and the mounting panel, compression spring is located between pressure strip and the mounting panel, compression spring one end is connected with the mounting panel, and the other end is connected with the pressure strip.

Through adopting above-mentioned technical scheme, the pressure strip supports tightly on the work piece under compression spring's effect to stop the work piece and move to the direction that is close to the mount pad.

Optionally, the compacting assembly further includes a guide rod, the mounting plate is provided with a sliding hole, the guide rod is slidably matched in the sliding hole along the axial direction of the compression spring, the length direction of the guide rod is parallel to the axial direction of the compression spring, the guide rod is located on one side, close to the mounting seat, of the compacting plate, and one end, close to the compacting plate, of the guide rod is connected with the compacting plate.

Through adopting above-mentioned technical scheme, when the pressure strip moves along compression spring's axis direction, the guide bar is directed the removal of pressure strip. Thereby make the pressure strip remove more steadily in the engineering, can reduce the phenomenon that takes place the slope in the pressure strip removal in-process moreover through the guide bar.

Optionally, the one end that the deflector rod kept away from the pressure strip is provided with the stopper, the stopper is used for stopping the deflector rod and deviate from in the sliding hole.

Through adopting above-mentioned technical scheme, stop the guide bar and deviate from the slide hole through the stopper to make the guide bar guide the pressure strip at pneumatic clamping jaw working process stable.

Optionally, the compressing assemblies are arranged in a plurality of groups, and the compressing assemblies are uniformly arranged at intervals around the axis of the workpiece.

By adopting the technical scheme, the compaction plates of the plurality of groups of compaction assemblies simultaneously compact the workpiece from different positions, so that the stability of the workpiece in the conveying process is improved.

Optionally, the ends of the pressing plates of the pressing assembly, which are close to each other, are connected to each other.

Through adopting above-mentioned technical scheme, a plurality of pressure strip interconnect to make a plurality of pressure strips remove in step, further improved the homogeneity of pressure strip to the applied force of work piece.

Optionally, be provided with the regulation subassembly between compression spring and the mounting panel, the regulation subassembly includes connecting plate, regulation section of thick bamboo and adjusts the pole, the connecting plate is connected with a plurality of compression springs one end that keep away from the pressure strip, the regulation section of thick bamboo is installed in the connecting plate one side that keeps away from compression spring, adjust pole one end and connect on the mounting panel, one end is connected on the inside wall of regulation section of thick bamboo, the regulation section of thick bamboo can drive the connecting plate and remove along the axis direction of work piece.

Through adopting above-mentioned technical scheme, remove the regulation section of thick bamboo and drive the connecting plate and remove, make the connecting plate be close to or keep away from the pressure strip to change compression spring's compression degree, and then change the pressure of pressure strip to the work piece.

Drawings

Fig. 1 is a schematic overall structure of a first embodiment of the present application.

Fig. 2 is a schematic overall structure of a second embodiment of the present application.

Reference numerals: 1. a mounting base; 11. a claw; 2. a compression assembly; 21. a compacting plate; 22. a compression spring; 23. a guide rod; 24. a limiting block; 25. a sliding hole; 3. a blocking piece; 4. a mounting plate; 5. an adjustment assembly; 51. a connecting plate; 52. an adjustment cylinder; 53. and (5) adjusting the rod.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a compressed type pneumatic clamping jaw.

Example 1

Referring to fig. 1, a compression type pneumatic clamping jaw comprises a mounting seat 1, a clamping jaw 11 and a compression assembly 2; the mounting seat 1 is of a disc-shaped structure; the number of the claws 11 is plural, the plural claws 11 are uniformly arranged on the mount base 1 around the axis of the mount base 1, and the plural claws 11 can be moved toward or away from each other. In this embodiment, three claws 11 are provided. The one end that jack catch 11 kept away from mount pad 1 is provided with the block piece 3, and the block piece 3 is used for blockking the work piece and is kept away from the direction of mount pad 1 along mount pad 1 axis at the in-process of being held by pneumatic clamping jaw. The pressing assembly 2 is mounted on the side of the mounting base 1 adjacent to the claw 11, and the pressing assembly 2 is configured to apply a force to the workpiece in a direction away from the mounting base 1 along the axis of the mounting base 1 during the process of clamping the workpiece (the workpiece is a cylindrical workpiece in this embodiment). Thereby blocking the movement of the workpiece in the direction approaching the mount 1 along the axis of the mount 1. The clamping jaw 11, the blocking block 3 and the pressing component 2 limit the workpiece from different positions respectively, so that the stability of the pneumatic clamping jaw for clamping the workpiece is improved.

Referring to fig. 1, the blocking blocks 3 are provided in three corresponding claws 11, the blocking blocks 3 are of rectangular plate-shaped structures, and the blocking blocks 3 are welded on one side of the claws 11 close to the axis of the mounting seat 1. One side of the workpiece far away from the mounting seat 1 is abutted against the side surface of the clamping jaw 11 close to the mounting seat 1, so that the workpiece is prevented from moving along the axis of the mounting seat 1 in the direction far away from the mounting seat 1 in the clamped process.

Referring to fig. 1, a mounting plate 4 is mounted on one side of a mounting seat 1, which is close to a jaw 11, and a mounting plate 4 is welded, and a pressing assembly 2 is mounted on the mounting plate 4. The hold-down assembly 2 includes a hold-down plate 21 and a compression spring 22. The pressure strip 21 is located the mounting panel 4 and keeps away from the one side of mount pad 1, and pressure strip 21 is rectangular plate structure, and pressure strip 21 radially sets up along mount pad 1, and pressure strip 21 is located the clearance between two adjacent jack catchs 11. The side surface of the compacting plate 21 away from the mounting seat 1 is attached to the workpiece. The compression spring 22 is disposed between the pressing plate 21 and the mounting plate 4, and one end of the compression spring 22 is welded to the mounting plate 4 and the other end is welded to the pressing plate 21. The compression spring 22 is used for enabling the compressing plate 21 to keep the trend of moving along the axis of the mounting seat 1 in the direction away from the mounting seat 1, so that the workpiece is abutted against the blocking block 3, and the stability of the pneumatic clamping jaw in the workpiece conveying process is further improved. And in the process of placing the workpiece on other clamps by the pneumatic clamping jaw, after the clamping jaw 11 moves in the direction away from each other, the pressing plate 21 can still press the workpiece tightly. The compacting plate 21 can support the workpiece when the pneumatic clamping jaw moves in a direction away from the workpiece, so that the occurrence of displacement of the workpiece when the pneumatic clamping jaw places the workpiece is reduced.

Referring to fig. 1, the compressing assembly 2 further includes a guide rod 23, the guide rod 23 is located at one side of the compressing plate 21 near the mounting base 1, the guide rod 23 is in a cylindrical rod-shaped structure, and the guide rod 23 is coaxially disposed with the compression spring 22. The guide rod 23 is slidably connected to the mounting plate 4 along the axial direction of the mounting seat 1, a sliding hole 25 is formed in the mounting plate 4 corresponding to the guide rod 23, and the guide rod 23 is slidably inserted into the sliding hole 25. One end of the guide rod 23, which is close to the compacting plate 21, is welded to the compacting plate 21. In the process that the compacting plate 21 moves along the axis direction of the mounting seat 1, the guide rod 23 plays a role in guiding the compacting plate 21, so that the compacting plate 21 moves more stably. The guide rod 23 can reduce the inclination of the pressing plate 21 with respect to the mounting plate 4, and the compression spring 22 is bent. The pressing assembly 2 further comprises a limiting block 24, and the limiting block 24 is welded at one end of the guide rod 23 far away from the pressing plate 21. The stopper 24 is of a cylindrical structure, the diameter of the stopper 24 is larger than that of the sliding hole 25, and the stopper 24 and the guide rod 23 are coaxially arranged. The guide rod 23 is blocked by the limiting block 24 to be separated from the sliding hole 25, so that the guide rod 23 stably guides the compacting plate 21 in the working process of the pneumatic clamping jaw.

Referring to fig. 1, in order to further enhance the compacting effect of the compacting assembly 2 on the workpiece. The number of the pressing assemblies 2 corresponding to the number of the clamping jaws 11 is multiple, and the sliding holes 25 are multiple corresponding to the pressing assemblies 2. The pressing plates 21 in the plurality of groups of pressing assemblies 2 are connected with each other at one end near the axis of the mounting seat 1. So that the plurality of pressing plates 21 are moved synchronously, and the force of the workpiece applied by the pressing plates 21 is more uniform.

The implementation principle of the compressed pneumatic clamping jaw of the embodiment of the application is as follows: in the process of carrying the workpiece by the pneumatic clamping jaw, the pneumatic clamping jaw is moved along the axial direction of the mounting seat 1 to approach the workpiece, and the pressing plate 21 is firstly abutted against the workpiece. As the pneumatic clamping jaw moves continuously, the pressing plate 21 moves along the axis of the mounting base 1 in a direction approaching the mounting base 1. When the blocking block 3 is positioned at one side of the workpiece far away from the mounting seat 1, the clamping claws 11 move towards the direction close to each other, and after the clamping claws 11 are attached to the side surface of the workpiece, the clamping of the workpiece is completed. The blocking block 3 can block the workpiece from falling off the pneumatic clamping jaw in the process of carrying the workpiece. The pressing plate 21 can block the workpiece from moving along the mounting axis towards the direction close to the mounting seat 1 and enable the workpiece to be abutted against the blocking block 3, so that the workpiece is more stable in the carrying process.

Example 2

Referring to fig. 2, the present embodiment is different from the first embodiment in that: an adjusting component 5 is arranged between the compression spring 22 and the mounting plate 4, and the adjusting component 5 is used for adjusting the pressing force of the pressing plate 21 on the workpiece. The adjustment assembly 5 includes a connection plate 51, an adjustment cylinder 52, and an adjustment lever 53. The connecting plate 51 is located between the compression springs 22 and the mounting plate 4, and ends of the plurality of compression springs 22, which are remote from the compacting plates 21, are welded to the connecting plate 51. The adjusting cylinder 52 is of a circular cylindrical structure, the adjusting cylinder 52 and the mounting seat 1 are coaxially arranged, the adjusting cylinder 52 is positioned on one side of the connecting plate 51 close to the mounting plate 4, and the adjusting cylinder 52 can rotate around the axis of the adjusting cylinder 52. The adjusting rod 53 has a cylindrical structure, and the adjusting rod 53 is coaxially arranged with the adjusting cylinder 52. The side wall of the adjusting rod 53 is provided with external threads, the inner side wall of the adjusting cylinder 52 is provided with internal threads, and the external threads of the adjusting rod 53 are connected in the adjusting cylinder 52. The end of the adjustment rod 53 remote from the mounting plate 4 is welded to the mounting plate 4. The adjustment cylinder 52 is rotated, and the adjustment cylinder 52 can be moved along its own axis by the screw. And thus can drive the connection plate 51 to approach or separate from the pressing plate 21. When the distance between the connection plate 51 and the pressing plate 21 is changed, the degree of compression of the compression spring 22 is also changed. Therefore, operators can adjust the compression degree of the compression spring 22 according to different workpieces, and early damage of the compression plate 21 to the workpiece with poor hardness is reduced.

The implementation principle of the compressed pneumatic clamping jaw of the embodiment of the application is as follows: the rotation adjusting cylinder 52 can drive the connecting plate 51 to move under the action of the screw thread. The movement of the connection plate 51 can change the compression degree of the compression spring 22, thereby changing the pressing force of the pressing plate 21 against the workpiece. When the hardness of the workpiece clamped by the pneumatic clamping jaw is small, the distance between the connecting plate 51 and the pressing plate 21 is increased by the rotatable adjusting cylinder 52, so that early damage to the workpiece caused by the pressing plate 21 is reduced. When the hardness of the workpiece is high, the rotatable adjusting cylinder 52 enables the distance between the connecting plate 51 and the pressing plate 21 to be small, so that the pressing force of the pressing plate 21 on the workpiece is increased, and the stability of the pneumatic clamping jaw in the workpiece conveying process is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a pneumatic clamping jaw of compressed type, includes mount pad (1) and two at least jack catchs (11) that are used for carrying out centre gripping to the solid of revolution work piece, its characterized in that: still including compressing tightly subassembly (2), compressing tightly subassembly (2) install on mount pad (1), a plurality of jack catch (11) are close to each other one side all is provided with blocking piece (3), blocking piece (3) are located the one side that the mount pad (1) was kept away from to the work piece, compressing tightly subassembly (2) are used for exerting the ascending power of direction of keeping away from mount pad (1) along the work piece axis to the work piece.

2. A compacting pneumatic jaw as claimed in claim 1, wherein: the device is characterized in that a mounting plate (4) is arranged between the compression assembly (2) and the mounting seat (1), the mounting plate (4) is mounted on the mounting seat (1), and the compression assembly (2) is mounted on the mounting plate (4).

3. A compacting pneumatic jaw as claimed in claim 1, wherein: the pressing assembly (2) comprises a pressing plate (21) and a compression spring (22), wherein the pressing plate (21) is located between a workpiece and the mounting plate (4), the compression spring (22) is located between the pressing plate (21) and the mounting plate (4), one end of the compression spring (22) is connected with the mounting plate (4), and the other end of the compression spring is connected with the pressing plate (21).

4. A compacting pneumatic jaw as claimed in claim 3, wherein: the compression assembly (2) further comprises a guide rod (23), a sliding hole (25) is formed in the mounting plate (4), the guide rod (23) is slidably matched in the sliding hole (25) along the axis direction of the compression spring (22), the length direction of the guide rod (23) is parallel to the axis of the compression spring (22), the guide rod (23) is located on one side, close to the mounting seat (1), of the compression plate (21), and one end, close to the compression plate (21), of the guide rod (23) is connected with the compression plate (21).

5. A compacting pneumatic jaw as set forth in claim 4 wherein: one end of the guide rod (23) far away from the compaction plate (21) is provided with a limiting block (24), and the limiting block (24) is used for blocking the guide rod (23) from being separated from the sliding hole (25).

6. A compacting pneumatic jaw as claimed in claim 1, wherein: the pressing assemblies (2) are arranged in a plurality of groups, and the pressing assemblies (2) are uniformly arranged at intervals around the axis of the workpiece.

7. A compacting pneumatic jaw as claimed in claim 1, wherein: one ends, close to each other, of the pressing plates (21) of the plurality of groups of pressing assemblies (2) are connected with each other.

8. A compacting pneumatic jaw as claimed in claim 3, wherein: the compression spring (22) and mounting panel (4) between be provided with regulation subassembly (5), regulation subassembly (5) are including connecting plate (51), regulation section of thick bamboo (52) and regulation pole (53), connecting plate (51) are connected with the one end that compression spring (21) was kept away from to a plurality of compression springs (22), one side that compression spring (22) was kept away from in connecting plate (51) is installed to regulation section of thick bamboo (52), regulation pole (53) one end is connected on mounting panel (4), and one end is connected on the inside wall of regulation section of thick bamboo (52), regulation section of thick bamboo (52) can drive connecting plate (51) and remove along the axis direction of work piece.