Multifunctional clamping jaw

By designing a fixing mechanism and damper structure for the multifunctional gripper, the problems of inconvenient gripper replacement and insufficient buffering were solved, enabling quick replacement and buffer protection, thus improving clamping efficiency and workpiece protection.

CN224209980UActive Publication Date: 2026-05-08HENAN DONGZHI ROBOT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN DONGZHI ROBOT CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing industrial robot grippers are time-consuming and labor-intensive to operate when changing different functions, and lack buffer gripping function, which can easily lead to workpiece deformation.

Method used

A multi-functional gripper was designed, which adopts a fixing mechanism and a damper structure to realize the function of quick gripper replacement, and provides buffer protection through the damper and spring.

Benefits of technology

It enables quick replacement of grippers and provides buffer protection, improving operational efficiency and protecting workpieces from damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of robot clamping jaws, and discloses a multifunctional clamping jaw which comprises an installation plate, a hollow column is fixedly installed on the lower surface of the installation plate, a first sliding groove is formed in the outer surface of the hollow column, and a fixing mechanism is arranged on the hollow column. The fixing mechanism comprises two first springs, two fixing plates, a circular ring, two circular holes, two balls, a fixing column, two clamping holes and an air cylinder clamping jaw, and the multifunctional clamping jaw drives the fixing block through the circular ring to push the cylinder to be clamped into the clamping hole formed in the outer surface of the fixing column so as to clamp and fix the cylinder; according to the multifunctional clamping jaw, the damper, the spring and the piston rod are arranged on the opposite faces of the two clamping jaw bodies of the air cylinder clamping jaw for buffering, so that the clamping jaw bodies of different functions can be replaced quickly, and the clamping jaw bodies of different functions can be replaced more conveniently; the air cylinder clamping jaw has the buffering function when clamping objects, a clamped workpiece is protected, and more convenience is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of robot gripper technology, specifically a multifunctional gripper. Background Technology

[0002] Industrial robots are widely used in modern industrial production. Compared with humans, industrial robots are more efficient and stable in their work. Especially when faced with some operations that are difficult for humans to complete, the advantages of industrial robots become more and more obvious. At present, many industrial robots are used to grip and transfer products. Therefore, most industrial robots are equipped with grippers.

[0003] Currently, many industrial robots are used to grip and transfer products, and many specialized grippers have been manufactured accordingly. However, due to the variety of products and their different shapes, the end effector of the industrial robot needs to have both gripping function of grippers and suction function of suction cups. This requires the robot to constantly disassemble and replace the grippers and suction cups, which is time-consuming and labor-intensive, affecting the efficiency of gripping products. Moreover, most gripping devices do not have the function of buffering gripping pressure, which can easily squeeze and deform the workpiece. In view of this, a multi-functional gripper is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multifunctional gripper that solves the problem of inconvenient replacement of grippers with different functions.

[0005] To achieve the above-mentioned purpose of quickly changing grippers with different functions, this utility model provides the following technical solution: a multi-functional gripper, including a mounting plate, a hollow column fixedly mounted on the lower surface of the mounting plate, and a first sliding groove formed on the outer surface of the hollow column;

[0006] The hollow column is equipped with a fixing mechanism, which includes two first springs, two fixing plates, a ring, two round holes, two round balls, a fixing column, two locking holes, and a cylinder gripper.

[0007] Preferably, the two first springs are respectively fixedly installed in the inner wall of the first slide groove, and the two fixing plates are respectively fixedly installed at the lower ends of the two first springs;

[0008] The ring is fixedly installed on the outer surface of the two fixed plates, and the ring is slidably connected to the first groove.

[0009] Preferably, the two circular holes are respectively formed on the inner surfaces of the two first grooves, and the two round beads are respectively disposed on the inner surfaces of the two circular holes.

[0010] Preferably, the fixing post is slidably sleeved on the inner surface of the hollow post, and two locking holes are opened on the outer surface of the fixing post;

[0011] The cylinder gripper is fixedly mounted on the lower surface of the fixed column.

[0012] Preferably, the two grippers of the cylinder clamp are provided with a second sliding groove on their opposite surfaces, and a buffer plate is installed on the inner wall of each of the two second sliding grooves.

[0013] Preferably, two dampers are fixedly installed in the inner walls of the two second slides, and four second springs are fixedly installed on the opposite sides of the four dampers;

[0014] The four second springs are fixedly mounted with four piston rods at their opposite ends. The four piston rods are slidably sleeved on the inner surfaces of the four dampers, and the four piston rods are fixedly mounted on the opposite sides of the two buffer plates.

[0015] Compared with the prior art, the present invention provides a multifunctional gripper with the following advantages:

[0016] 1. This multi-functional gripper can be driven by a ring-driven fixing block to push a cylindrical clamp into a locking hole on the outer surface of a fixing column to fix it in place, thus completing the installation of the cylinder gripper fixed on the lower surface of the fixing column. This method allows for quick replacement of grippers with different functions, making it more convenient.

[0017] 2. This multi-functional gripper uses dampers, springs, and piston rods on the opposite surfaces of the two grippers to provide cushioning, thus protecting the workpiece and making it more convenient to grip items. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a multifunctional gripper structure according to the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the hollow column of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the internal structure of the cylinder gripper of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of the structure at point B in the middle.

[0023] In the diagram: 1. Mounting plate; 2. Hollow column; 3. First slide groove; 4. First spring; 5. Fixing plate; 6. Ring; 7. Circular hole; 8. Ball; 9. Fixing column; 10. Locking hole; 11. Cylinder gripper; 12. Second slide groove; 13. Buffer plate; 14. Damper; 15. Second spring; 16. Piston rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a new technical solution: a multi-functional gripper, including a mounting plate 1, a hollow column 2 fixedly mounted on the lower surface of the mounting plate 1, and a first sliding groove 3 opened on the outer surface of the hollow column 2;

[0026] The hollow column 2 is equipped with a fixing mechanism, which includes two first springs 4, two fixing plates 5, a ring 6, two round holes 7, two round beads 8, a fixing column 9, two locking holes 10, and a cylinder gripper 11.

[0027] Furthermore, the two first springs 4 are respectively fixedly installed in the inner wall of the first slide groove 3, and the two fixing plates 5 are respectively fixedly installed at the lower ends of the two first springs 4;

[0028] The ring 6 is fixedly installed on the outer surface of the two fixed plates 5, and the ring 6 is slidably connected to the first groove 3.

[0029] Furthermore, two round holes 7 are respectively opened on the inner surface of the two first grooves 3, and two round beads 8 are respectively set on the inner surface of the two round holes 7.

[0030] Furthermore, the fixing post 9 is slidably sleeved on the inner surface of the hollow post 2, and two locking holes 10 are opened on the outer surface of the fixing post 9.

[0031] The cylinder gripper 11 is fixedly installed on the lower surface of the fixed column 9.

[0032] Furthermore, the cylinder gripper 11 has a second sliding groove 12 on the opposite face of the two grippers, and a buffer plate 13 is installed on the inner wall of each of the two second sliding grooves 12.

[0033] Furthermore, two dampers 14 are fixedly installed in the inner walls of the two second slide grooves 12 respectively, and four second springs 15 are fixedly installed on the opposite surfaces of the four dampers 14.

[0034] Among them, four piston rods 16 are fixedly installed on the opposite ends of the four second springs 15, the four piston rods 16 are respectively slidably sleeved on the inner surface of the four dampers 14, and the four piston rods 16 are respectively fixedly installed on the opposite sides of the two buffer plates 13.

[0035] When in use, this multi-functional gripper moves upward by applying an upward thrust to the ring 6. Simultaneously, the ring 6 moves the two fixed plates 5, which are fixedly mounted on its inner surface, upward. At this time, the two fixed plates 5 apply pressure to the two first springs 4, which are fixedly mounted on their upper surfaces, causing them to contract. The two fixed plates 5 no longer obstruct the two circular holes 7, meaning they no longer limit the movement of the two balls 8 inside the holes 7. Then, by inserting the fixed post 9, which is fixedly mounted on the upper surface of the cylinder gripper 11, into the inner surface of the hollow post 2, the upward thrust on the ring 6 is no longer applied, and the two first springs 4 are no longer under force. The two first springs 4 then apply a downward thrust to the two fixed plates 5, which are fixedly mounted at their lower ends, causing them to collide... Two round balls 8 are struck, causing them to move toward their opposite sides and engage with the two locking holes 10 on the outer surface of the fixing column 9 for fixation, thus completing the installation of the cylinder gripper 11. When the cylinder clamps the object, the buffer plate 13 applies a backward thrust to the two piston rods 16 fixedly mounted on the rear surface, causing the piston rods 16 to move slowly backward on the inner surface of the damper 14. The damper 14 in this invention is a liquid damper. The hydraulic damper consumes energy through damping oil and damping holes, thereby slowing down or stopping the mechanical movement. In addition, the piston rods 16 apply pressure to the second spring 15 fixedly mounted on the lower surface, and the elastic potential energy of the second spring 15 itself forms a certain buffer to protect the clamped workpiece.

[0036] This multi-functional gripper can be driven by a ring-driven fixing block to push a cylindrical clamp into a locking hole on the outer surface of a fixing column for secure mounting. This completes the installation of the cylinder gripper fixed to the lower surface of the fixing column. This method allows for quick replacement of grippers with different functions, making it more convenient. Furthermore, this multi-functional gripper uses dampers, springs, and piston rods on the opposite surfaces of the two grippers to provide cushioning, protecting the workpiece during gripping and making it even more convenient.

[0037] Working principle: When this multi-functional gripper is in use, an upward pushing force is applied to the ring 6, causing it to move upward. Simultaneously, the ring 6 drives the two fixed plates 5, which are fixedly mounted on its inner surface, to move upward. At this time, the two fixed plates 5 apply pressure to the two first springs 4, which are fixedly mounted on the upper surface, causing them to contract. The two fixed plates 5 no longer obstruct the two circular holes 7, meaning they no longer limit the movement of the two balls 8 inside the holes 7. Then, by inserting the fixed post 9, which is fixedly mounted on the upper surface of the cylinder gripper 11, into the inner surface of the hollow post 2, the upward pushing force on the ring 6 is no longer applied, and the two first springs 4 are no longer under force. At this time, the two first springs 4 apply a downward pushing force to the two fixed plates 5, which are fixedly mounted at the lower end. The cylinder impacts two balls 8, causing them to move towards their opposite sides and engage with two locking holes 10 on the outer surface of the fixing post 9 for fixation. This completes the installation of the cylinder gripper 11. When the cylinder clamps the object, the buffer plate 13 applies a backward thrust to the two piston rods 16 fixedly mounted on the rear surface, causing the piston rods 16 to move slowly backward on the inner surface of the damper 14. The damper 14 in this invention is a liquid damper. The hydraulic damper consumes energy through damping oil and damping holes, thereby slowing down or stopping the mechanical movement. Furthermore, the piston rods 16 apply pressure to the second spring 15 fixedly mounted on the lower surface, and the elastic potential energy of the second spring 15 itself forms a certain buffer to protect the clamped workpiece.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional gripper, comprising a mounting plate (1), wherein a hollow column (2) is fixedly mounted on the lower surface of the mounting plate (1), characterized in that: The outer surface of the hollow column (2) is provided with a first groove (3); The hollow column (2) is provided with a fixing mechanism, which includes two first springs (4), two fixing plates (5), a ring (6), two round holes (7), two round balls (8), a fixing column (9), two locking holes (10), and a cylinder gripper (11).

2. The multifunctional gripper according to claim 1, characterized in that: The two first springs (4) are respectively fixedly installed in the inner wall of the first slide groove (3), and the two fixing plates (5) are respectively fixedly installed at the lower ends of the two first springs (4); Among them, the ring (6) is fixedly installed on the outer surface of the two fixed plates (5), and the ring (6) is slidably connected to the first groove (3).

3. The multifunctional gripper according to claim 1, characterized in that: The two circular holes (7) are respectively opened on the inner surface of the two first grooves (3), and the two round beads (8) are respectively set on the inner surface of the two circular holes (7).

4. A multifunctional gripper according to claim 1, characterized in that: The fixed column (9) is slidably sleeved on the inner surface of the hollow column (2), and two locking holes (10) are opened on the outer surface of the fixed column (9); The cylinder gripper (11) is fixedly installed on the lower surface of the fixed column (9).

5. A multifunctional gripper according to claim 1, characterized in that: The cylinder gripper (11) has a second groove (12) on the opposite side of the two grippers, and a buffer plate (13) is installed on the inner wall of each of the two second grooves (12).

6. A multifunctional gripper according to claim 5, characterized in that: Two dampers (14) are fixedly installed in the inner walls of the two second slides (12), and four second springs (15) are fixedly installed on the opposite sides of the four dampers (14). Among them, four piston rods (16) are fixedly installed on the opposite ends of the four second springs (15), and the four piston rods (16) are respectively slidably sleeved on the inner surface of the four dampers (14), and the four piston rods (16) are respectively fixedly installed on the opposite sides of the two buffer plates (13).