Multi-product quick-change clamp jaw

CN224407621UActive Publication Date: 2026-06-26DONGGUAN MINJIANG INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN MINJIANG INTELLIGENT TECH CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Most existing handling grippers are custom-designed and cannot flexibly adapt to products of different sizes, shapes or materials, resulting in a cumbersome and complicated replacement process that affects production efficiency.

Method used

A multi-product quick-change gripper was designed, which adopts a hook structure with a rotating shaft and spring, combined with a positioning pin and an anti-disengagement block to achieve stable gripper engagement; the unlocking mechanism utilizes the cooperation of limit components, lifting plates and manual operation components to achieve quick unlocking and installation of the gripper.

Benefits of technology

It enables quick and stable replacement and adaptation of grippers, improves production efficiency, ensures the safety and continuity of the handling process, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of clamping jaw, provide a kind of multi-product quick-change clamping jaw, including mounting column and the flange being arranged in the bottom of mounting column, the top of flange bottom is connected with top plate, four corners of the bottom of top plate are all connected with pillar, the bottom of four groups of pillars is connected with bearing table, the middle part of the top of bearing table is equipped with cylinder, the both sides of the top of bearing table are all provided with connecting seat, the both sides of bearing table are all set with the mounting slot corresponding to connecting seat, rotatingly provided with pivot in mounting slot, the middle part of pivot is provided with hook;The utility model is equipped with two pairs of rotatable hooks by pivot and spring cooperation, realize the stable clamping connection of clamping jaw, positioning pin and anti-drop block further enhance the stability and reliability of clamping jaw installation, ensure that clamping jaw does not fall off in the process of handling, simultaneously by driving two groups of clamping jaw centring rotation can drive hook to loosen clamping jaw, that is, the clamping jaw of different products can be quickly switched to adapt, greatly improve production efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of grippers, specifically a multi-product quick-change gripper. Background Technology

[0002] In today's industrial production, the efficiency and flexibility of product handling are crucial. During the handling process, handling grippers are needed to transfer workpieces from one workstation to another, thereby shortening the production cycle and reducing waiting time.

[0003] Existing handling grippers typically consist of a drive mechanism and gripping components, which can precisely control the gripping force and position based on preset programs or sensor feedback.

[0004] However, most mainstream handling grippers on the market are custom-designed and can only adapt to a single specification or specific type of product. Once the production scenario changes and it is necessary to switch to handling products of different sizes, shapes, or materials, significant drawbacks are exposed. To adapt the grippers to the new product, operators have to use tools and spend a lot of time disassembling the screws that fix the grippers, removing the original grippers, and then installing the grippers adapted to the new product. The entire replacement process is cumbersome and complicated.

[0005] Therefore, this solution proposes a multi-product quick-change gripper to address the problems raised in the background technology. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a multi-product quick-change gripper.

[0007] A multi-product quick-change gripper includes a mounting post and a flange located at the bottom of the mounting post. A top plate is connected to the bottom end of the flange, and each of the four corners of the bottom of the top plate is connected to a support column. A support platform is connected to the bottom end of the four sets of support columns. A cylinder is installed in the middle of the top of the support platform. Connecting seats are provided on both sides of the top of the support platform. Mounting slots corresponding to the connecting seats are opened on both sides of the support platform. A rotating shaft is rotatably installed in the mounting slot. A hook is provided in the middle of the rotating shaft. A spring is provided between the top of the side of the hook and the connecting seat. The bottom ends of the two sets of hooks are engaged with grippers located below the support platform. An unlocking mechanism is provided between the support platform and the top plate to drive the two sets of grippers to rotate in a centered manner.

[0008] Preferably, mounting seats are provided on both sides of the gripper, and anti-detachment blocks that cooperate with the hooks are provided on the opposite sides of the two sets of mounting seats.

[0009] Preferably, the bottom of the support platform is provided with positioning pins at diagonal angles, and the grippers are interlocked between the two sets of positioning pins.

[0010] Preferably, the gripper has a mating plate on its side, and the mating plate has a U-shaped mounting opening. The mating plate is connected to the output end of the cylinder through the U-shaped mounting opening and external fasteners.

[0011] Preferably, the unlocking mechanism includes a limiting component, a lifting plate, pull rods, and a manual operating component. The lifting plate is slidably connected to the bottom of the top plate through the limiting component. Pull rods are rotatably provided on both sides of the lifting plate. One end of each of the two sets of pull rods is rotatably connected to the top of the two sets of hooks. Manual operating components connected to the top plate are provided at both ends of the lifting plate.

[0012] Preferably, the limiting component includes limiting shafts and baffles. Two sets of limiting shafts are symmetrically arranged on both sides of the bottom of the top plate. The lifting plate is slidably arranged between the four sets of limiting shafts. The bottom ends of the four sets of limiting shafts are connected to baffles to prevent the lifting plate from slipping.

[0013] Preferably, the manual operating component includes a horizontal shaft, a first connecting rod, a second connecting rod, and a pressure handle. Horizontal shafts are rotatably mounted on both sides of the top plate. A pressure handle is connected to one end of each of the two sets of horizontal shafts. A first connecting rod is connected to each of the two sets of horizontal shafts. A second connecting rod is rotatably connected to the bottom end of each of the two sets of first connecting rods. The two sets of second connecting rods are rotatably connected to both ends of the lifting plate, respectively.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model features two pairs of rotatable hooks that work together with a rotating shaft and spring to achieve a stable locking connection of the grippers. The positioning pin and anti-detachment block further enhance the stability and reliability of the gripper installation, ensuring that the grippers will not fall off during handling. At the same time, by driving the two sets of grippers to rotate in the center, the hooks can be driven to release the grippers, which allows for quick switching of grippers to suit different products, greatly improving production efficiency.

[0016] 2. This utility model is equipped with an unlocking mechanism. By cooperating with the limiting component, the lifting plate, the pull rod, and the manual operating component, pressing down the handle causes the handle to drive the first connecting rod to rotate via the horizontal shaft. During the rotation of the first connecting rod, the second connecting rod pulls the lifting plate upward under the guidance of the limiting component. During the movement, the pull rod can pull the two sets of hooks to rotate, thereby unlocking the gripper. The overall operation is convenient and quick, without the need to rotate the two sets of hooks individually. Attached Figure Description

[0017] Figure 1 This is the main view of the present invention.

[0018] Figure 2 This is a front view of the present invention.

[0019] Figure 3 This is a diagram showing the split structure of this utility model;

[0020] Figure 4 This is a diagram of the hook connection structure of this utility model;

[0021] Figure 5 This is a partially enlarged structural diagram of the unlocking mechanism of this utility model.

[0022] In the picture:

[0023] 1. Mounting column; 2. Flange; 3. Top plate; 4. Support column; 5. Support platform; 6. Cylinder; 7. Connecting seat; 8. Mounting groove; 9. Rotating shaft; 10. Hook; 11. Spring; 12. Gripper; 13. Unlocking mechanism; 131. Limiting component; 1311. Limiting shaft; 1312. Baffle; 132. Lifting plate; 133. Pull rod; 134. Manual operating component; 1341. Horizontal shaft; 1342. First connecting rod; 1343. Second connecting rod; 1344. Pressure handle; 14. Mounting seat; 15. Anti-detachment block; 16. Positioning pin; 17. Connecting plate; 18. U-shaped mounting port. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] As attached Figure 1 To be continued Figure 5 As shown:

[0026] This utility model provides a multi-product quick-change gripper, including a mounting post 1 and a flange 2 set at the bottom of the mounting post 1. A top plate 3 is connected to the bottom end of the flange 2. Support columns 4 are connected to the four corners of the bottom of the top plate 3. A support platform 5 is connected to the bottom end between the four sets of support columns 4. A cylinder 6 is installed in the middle of the top of the support platform 5. Connecting seats 7 are set on both sides of the top of the support platform 5. Mounting grooves 8 corresponding to the connecting seats 7 are opened on both sides of the support platform 5. A rotating shaft 9 is rotatably set in the mounting groove 8. A hook 10 is set in the middle of the rotating shaft 9. A spring 11 is set between the top of the side of the hook 10 and the connecting seat 7. The bottom ends of the two sets of hooks 10 are engaged with grippers 12 located below the support platform 5. An unlocking mechanism 13 is set between the support platform 5 and the top plate 3 for driving the two sets of grippers 12 to rotate in the center.

[0027] refer to Figure 2 and Figure 3 Both sides of the gripper 12 are provided with mounting bases 14, and each of the two sets of mounting bases 14 is provided with an anti-detachment block 15 that cooperates with the hook 10 on the opposite side.

[0028] The anti-detachment block 15 and the hook 10 work together to form a dual protection mechanism. When the gripper 12 is in the engaged state, the anti-detachment block 15 can effectively prevent the gripper 12 from accidentally falling off due to external impact, vibration or other factors during the handling process, further enhancing the stability and reliability of the gripper 12 installation and ensuring the safety and continuity of the handling operation.

[0029] refer to Figure 3 The bottom of the support platform 5 is provided with positioning pins 16 diagonally, and the grippers 12 are interposed between the two sets of positioning pins 16.

[0030] The locating pin 16 provides a precise positioning reference for the installation of the gripper 12, enabling the gripper 12 to be installed in the designated position quickly and accurately, thus improving installation efficiency.

[0031] refer to Figure 3 The side of the gripper 12 is provided with a docking plate 17, and the docking plate 17 has a U-shaped mounting port 18. The docking plate 17 is connected to the output end of the cylinder 6 through the U-shaped mounting port 18 and external fasteners.

[0032] The design of the U-shaped mounting port 18 makes the connection between the gripper 12 and the cylinder 6 more flexible and convenient. During installation, simply align the U-shaped mounting port 18 with the output end of the cylinder 6 and then use external fasteners to fix it, without the need for complicated operations or additional tools.

[0033] refer to Figure 2 and Figure 4 The unlocking mechanism 13 includes a limiting member 131, a lifting plate 132, a pull rod 133, and a manual operating member 134. The lifting plate 132 is slidably connected to the bottom of the top plate 3 through the limiting member 131. Pull rods 133 are rotatably provided on both sides of the lifting plate 132. One end of the two sets of pull rods 133 is rotatably connected to the top of the two sets of hooks 10 respectively. Both ends of the lifting plate 132 are provided with manual operating members 134 connected to the top plate 3.

[0034] The operator can move the lifting plate 132 up and down under the guidance of the limiting member 131 by operating the manual operating part 134. During the movement of the lifting plate 132, the hook 10 is rotated by the pull rod 133, thereby unlocking the gripper 12.

[0035] refer to Figure 5 The limiting component 131 includes a limiting shaft 1311 and a baffle 1312. Two sets of limiting shafts 1311 are symmetrically arranged on both sides of the bottom of the top plate 3. The lifting plate 132 is slidably arranged between the four sets of limiting shafts 1311. The bottom ends of the four sets of limiting shafts 1311 are connected to baffles 1312 to prevent the lifting plate 132 from slipping.

[0036] The limiting shaft 1311 provides a precise guide track for the movement of the lifting plate 132, ensuring that the lifting plate 132 can only move up and down in the vertical direction.

[0037] refer to Figure 3 The manual operating component 134 includes a horizontal shaft 1341, a first connecting rod 1342, a second connecting rod 1343, and a pressure handle 1344. Horizontal shafts 1341 are rotatably mounted on both sides of the top plate 3. One end of each set of horizontal shafts 1341 is connected to a pressure handle 1344. The first connecting rods 1342 are connected to each set of horizontal shafts 1341. The bottom ends of each set of first connecting rods 1342 are rotatably connected to second connecting rods 1343. The two sets of second connecting rods 1343 are rotatably connected to both ends of the lifting plate 132.

[0038] In this process, the operator only needs to press down the handle 1344 on one side. The handle 1344 drives the first connecting rod 1342 to rotate through the horizontal shaft 1341. During the rotation of the first connecting rod 1342, the lifting plate 132 is pulled upward through the second connecting rod 1343, thereby driving the hook 10 to rotate and unlock the gripper 12.

[0039] Working principle: During the installation of the gripper 12, the positioning pin 16 provides initial positioning for the gripper 12. The operator aligns the positioning hole on the gripper 12 with the positioning pin 16 to ensure it is in the correct installation position. At this time, the anti-detachment blocks 15 on the mounting seats 14 on both sides of the gripper 12, which cooperate with the hooks 10, are also in a ready-to-engage state. Then, the operator pushes the gripper 12 upward. During the pushing process, the adaptive compression springs 11 of the two sets of hooks 10 rotate inward, causing the gripper 12 to engage at the bottom end between the two sets of hooks 10, until it passes the bottom end of the hooks 10. Under the action of the spring 11's restoring force, the hooks 10 reset and flip, thereby locking the gripper 12 through the anti-detachment blocks 15. Then, the docking plate 17 on the side of the gripper 12 is connected to the output end of the cylinder 6 at the top center of the support platform 5 through its U-shaped mounting port 18 and external fasteners. After completing the initial mechanical connection, when the production scene changes and different sizes of products need to be handled, requiring the replacement of grippers 12, the operator operates the unlocking mechanism 13 to press down the pressure handle 1344. The pressure handle 1344 drives the horizontal shaft 1341 to rotate, and the first connecting rod 1342 connected to the horizontal shaft 1341 rotates accordingly. During the rotation of the first connecting rod 1342, the lifting plate 132 is pulled by the second connecting rod 1343. The lifting plate 132 moves upward under the guidance of the limit shaft 1311. During the movement, the pull rods 133 on both sides pull the top of the two sets of hooks 10 respectively, causing the hooks 10 to rotate around the rotating shaft 9. The bottom ends between the hooks 10 loosen their engagement with the grippers 12. At this time, the operator can remove the original grippers 12 and then install the grippers 12 adapted to the new product according to the above installation steps. The whole process is convenient and quick, greatly improving production efficiency.

[0040] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A multi-product quick-change gripper, characterized in that, It includes a mounting column (1) and a flange (2) set at the bottom of the mounting column (1). The bottom end of the flange (2) is connected to a top plate (3). The four corners of the bottom of the top plate (3) are connected to pillars (4). The bottom ends of the four pillars (4) are connected to a support platform (5). A cylinder (6) is installed in the middle of the top of the support platform (5). Connecting seats (7) are set on both sides of the top of the support platform (5). The two sides of the support platform (5) are provided with mounting grooves (8) corresponding to the connecting seats (7). A rotating shaft (9) is rotatably set in the mounting groove (8). A hook (10) is set in the middle of the rotating shaft (9). A spring (11) is set between the top of the side of the hook (10) and the connecting seat (7). The bottom ends of the two sets of hooks (10) are engaged with a gripper (12) located below the support platform (5). An unlocking mechanism (13) is set between the support platform (5) and the top plate (3) to drive the two sets of grippers (12) to rotate in the center.

2. The multi-product quick-change gripper as described in claim 1, characterized in that: Both sides of the gripper (12) are provided with mounting bases (14), and the two sets of mounting bases (14) are provided with anti-detachment blocks (15) that cooperate with the hook (10) on the opposite side.

3. The multi-product quick-change gripper as described in claim 1, characterized in that: The bottom of the support platform (5) is provided with positioning pins (16) at opposite angles, and the grippers (12) are interposed between the two sets of positioning pins (16).

4. The multi-product quick-change gripper as described in claim 1, characterized in that: The side of the gripper (12) is provided with a docking plate (17), and a U-shaped mounting port (18) is provided on the docking plate (17). The docking plate (17) is connected to the output end of the cylinder (6) through the U-shaped mounting port (18) and external fasteners.

5. The multi-product quick-change gripper as described in claim 1, characterized in that: The unlocking mechanism (13) includes a limiting member (131), a lifting plate (132), a pull rod (133), and a manual operating member (134). The lifting plate (132) is slidably connected to the bottom of the top plate (3) through the limiting member (131). Pull rods (133) are rotatably provided on both sides of the lifting plate (132). One end of the two sets of pull rods (133) is rotatably connected to the top of the two sets of hooks (10). Both ends of the lifting plate (132) are provided with a manual operating member (134) connected to the top plate (3).

6. The multi-product quick-change gripper as described in claim 5, characterized in that: The limiting component (131) includes a limiting shaft (1311) and a baffle (1312). Two sets of limiting shafts (1311) are symmetrically arranged on both sides of the bottom of the top plate (3). The lifting plate (132) is slidably arranged between the four sets of limiting shafts (1311). The bottom ends of the four sets of limiting shafts (1311) are connected to baffles (1312) to prevent the lifting plate (132) from slipping.

7. The multi-product quick-change gripper as described in claim 5, characterized in that: The manual operating component (134) includes a horizontal shaft (1341), a first connecting rod (1342), a second connecting rod (1343), and a pressure handle (1344). Horizontal shafts (1341) are rotatably installed on both sides of the top plate (3). A pressure handle (1344) is connected to one end of each of the two sets of horizontal shafts (1341). A first connecting rod (1342) is connected to each of the two sets of horizontal shafts (1341). A second connecting rod (1343) is rotatably connected to the bottom end of each of the two sets of first connecting rods (1342). The two sets of second connecting rods (1343) are rotatably connected to both ends of the lifting plate (132).