Mechanical hand clamp with specific anti-loosening function

Abstract

This utility model relates to the field of clamping technology and discloses a robotic gripper with a specific anti-loosening and anti-falling function. It includes a drive rod, a transmission rod fixedly connected to the top of the drive rod, a transmission beam fixedly connected to the top of the transmission rod, two power rods rotatably connected to the left and right sides of the transmission beam, and power arms rotatably connected to the top of each of the two power rods. Two support blocks are fixedly connected to the top of the drive rod, and a support fixing shaft is fixedly connected to the adjacent side of the two support blocks. Two connecting rods are rotatably connected to the outside of the support fixing shaft, and wedge connecting rods are rotatably connected to the distant side of each of the two connecting rods. This utility model achieves a dual anti-falling effect of mechanical self-locking and dynamic anti-slip, effectively solving the problem of loosening and falling off traditional grippers.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a robotic gripper with a specific function of preventing loosening and falling off. Background Technology

[0002] A robotic gripper is a device installed at the end of a robotic arm for grasping, fixing, and transporting objects. It consists of a gripper, a driver, and other components. These grippers enable robots to precisely manipulate objects, improving production efficiency, reducing costs, and replacing manual labor in hazardous environments. They are widely used in manufacturing industries such as automotive, electronics, food, and metal processing, as well as in the chemical industry. Different types of grippers are adapted to different scenarios, and precise control is achieved through sensors and controllers.

[0003] Robotic grippers with anti-loosening and anti-fall-off functions utilize structures such as wedge blocks, buckles, or elastic claws. During gripping, they form a self-locking mechanism through mechanical engagement to prevent objects from falling off due to external forces. Built-in pressure sensors monitor the gripping force in real time. When a loosening or change in force is detected, the actuator (such as an electric or hydraulic device) automatically adjusts the clamping force to maintain stable gripping. Using dual claws or multi-contact gripping, even if one part fails, the other gripping points can still keep the object fixed, reducing the risk of falling off. The surface is made of anti-slip texture or flexible materials (such as rubber or silicone) to increase friction with the object and prevent slippage.

[0004] In the existing technology, some robotic grippers adopt traditional clamping methods, relying solely on a single gripper structure or simple friction to fix objects. When facing workpieces with smooth surfaces or irregular shapes, or when operating in high-speed or vibrating environments, the friction is insufficient and the clamping force is unevenly distributed, causing the workpiece to frequently loosen and slip off, affecting the production process. Therefore, a robotic gripper with a specific anti-loosening and anti-drop function is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a robotic gripper with a specific anti-loosening and anti-fall-off function, aiming to improve the existing technology to solve the problem of workpieces easily falling off in traditional grippers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A robotic gripper with anti-loosening and anti-fall-off function includes a drive rod, a transmission rod fixedly connected to the top of the drive rod, a transmission beam fixedly connected to the top of the transmission rod, two power rods rotatably connected to the left and right sides of the transmission beam, power arms rotatably connected to the top of each of the two power rods, two support blocks fixedly connected to the top of the drive rod, a support fixing shaft fixedly connected to the adjacent side of the two support blocks, two connecting rods rotatably connected to the outside of the support fixing shaft, wedge connecting rods rotatably connected to the distant side of each of the two connecting rods, gripping jaws detachably connected to the top of each of the two power arms, and detachable components fixedly connected to the bottom of each of the two gripping jaws for easy disassembly.

[0008] As a further description of the above technical solution:

[0009] The detachable component includes two gripper connecting seats, the tops of the two gripper connecting seats are fixedly connected to the bottoms of the two gripping grippers, and two sliding pins are slidably connected to the left and right sides of the two gripper connecting seats.

[0010] As a further description of the above technical solution:

[0011] Multiple clamping grooves are provided on the adjacent sides of the two clamping claws, and springs are fixedly connected inside the multiple clamping grooves;

[0012] As a further description of the above technical solution:

[0013] Friction block pressure plates are fixedly connected to adjacent sides of multiple springs, and anti-slip protrusions are fixedly connected to adjacent sides of multiple friction block pressure plates.

[0014] As a further description of the above technical solution:

[0015] The top of each of the two power arms is provided with a fixing groove, and the exterior of the plurality of sliding pins is slidably connected to the interior of the fixing groove;

[0016] As a further description of the above technical solution:

[0017] Both of the power arms have friction grooves inside, and the two wedge connecting rods are slidably connected to the inside of the friction grooves.

[0018] As a further description of the above technical solution:

[0019] Both of the two clamping jaws are rotatably connected to the interior of the clamping jaws, and both of the two clamping jaws are rotatably connected to the interior of the fixing groove.

[0020] As a further description of the above technical solution:

[0021] Anti-slip pressure plates are fixedly connected to the adjacent sides of the two clamping jaws, and connection holes are provided on the distant sides of the two clamping jaws.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the wedge block connecting rod is driven by the linkage rod to slide in the friction groove of the power arm. When the clamping jaws clamp the workpiece, the inclined structure of the wedge block connecting rod slides in the guide groove to generate a wedge clamping force. Even if the power source is interrupted, the clamping state can be maintained by friction. The spring pushes the anti-slip protrusions to stick to the workpiece surface through the friction block pressure plate. A continuous and stable friction force is formed between the clamping jaws and the workpiece, realizing the dual anti-drop effect of mechanical self-locking and dynamic anti-slip, effectively solving the problem of loosening and falling off of traditional clamps.

[0024] 2. In this utility model, by inserting the hexagonal screw into the connecting hole, and turning it into the clamping jaw connecting seat and the fixing groove, the clamping jaw connecting seat enters the fixing groove through the rotation of the hexagonal screw, and pushes the sliding pin to both sides. Because of the inclined surface design, the friction is greatly increased, thereby fixing the clamping jaw. By rotating the hexagonal screw in the opposite direction, the pressure on the sliding pin is loosened, and the clamping jaw can be quickly removed. This realizes the quick installation and disassembly of the clamping jaw, greatly shortens the replacement time, and improves work efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a robotic gripper with a specific anti-loosening and anti-fall-off function proposed in this utility model;

[0026] Figure 2 This is a cross-sectional schematic diagram of the clamping component of a robotic gripper with a specific anti-loosening and anti-fall-off function proposed in this utility model.

[0027] Figure 3 This is a cross-sectional schematic diagram of the gripper of a robotic arm clamp with a specific anti-loosening and anti-fall-off function proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Legend:

[0030] 1. Drive rod; 2. Transmission rod; 3. Transmission beam; 4. Power rod; 5. Power arm; 6. Friction groove; 7. Support block; 8. Support fixing shaft; 9. Linkage rod; 10. Wedge block connecting rod; 11. Fixing groove; 12. Clamping claw; 13. Clamping groove; 14. Spring; 15. Friction block pressure plate; 16. Anti-slip protrusion; 17. Claw connecting seat; 18. Sliding pin; 19. Anti-slip pressure plate; 20. Connecting hole; 21. Hex socket screw. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a robotic gripper with a specific anti-loosening and anti-fall-off function, comprising a drive rod 1, which provides support and installation space for subsequent devices. A transmission rod 2 is fixedly connected to the top of the drive rod 1, ensuring power transmission. A transmission beam 3 is fixedly connected to the top of the transmission rod 2, transmitting power. Two power rods 4 are rotatably connected to the left and right sides of the transmission beam 3, transmitting power. Power arms 5 are rotatably connected to the top of each of the two power rods 4, serving a connecting and power transmission function. Two support blocks 7 are fixedly connected to the top of the drive rod 1. The two support blocks 7 provide support and installation space. The adjacent sides of the two support blocks 7 are fixedly connected to the support fixing shaft 8, which provides a fixing function. The support fixing shaft 8 is rotatably connected to two linkage rods 9, which transmit power. The distant sides of the two linkage rods 9 are rotatably connected to the wedge block linkage 10, which receives power movement. The top of the two power arms 5 can be detachably connected to the clamping jaws 12, which have a clamping function. The bottom of the two clamping jaws 12 is fixedly connected to a detachable component that is easy to disassemble, which allows for quick disassembly of the clamping jaws 12.

[0033] Reference Figure 3 The detachable component includes two gripper connecting seats 17, which have a fixing function. The top of each gripper connecting seat 17 is fixedly connected to the bottom of the two gripping grippers 12. The gripper connecting seats 17 can fix the position of the gripping grippers 12. Two sliding pins 18 are slidably connected to the left and right sides of each gripper connecting seat 17. The sliding pins 18 can increase friction and prevent them from falling off.

[0034] Reference Figures 2 to 4Each of the two clamping jaws 12 has multiple clamping grooves 13 on adjacent sides, providing installation space. Springs 14 are fixedly connected inside each of the clamping grooves 13, providing mobility. Friction block pressure plates 15 are fixedly connected to adjacent sides of the springs 14, providing installation space. Anti-slip protrusions 16 are fixedly connected to adjacent sides of the friction block pressure plates 15, increasing friction. Fixed grooves 11 are provided at the top of each of the two power arms 5, providing installation space. Multiple sliding pins 18 are slidably connected to the inside of the fixed grooves 11, increasing friction as they slide within the grooves. The two power arms 5 each have friction grooves 6 inside, which serve as guides. The two wedge connecting rods 10 are slidably connected to the inside of the friction grooves 6, which restrict the movement of the wedge connecting rods 10. The two jaw connecting seats 17 each have hexagonal socket screws 21 inside, which serve as connections and fixations. The two hexagonal socket screws 21 are rotatably connected to the inside of the fixing groove 11, which fixes the position of the hexagonal socket screws 21. Anti-slip pressure plates 19 are fixedly connected to the adjacent sides of the two clamping jaws 12, which increase friction. The two clamping jaws 12 each have connecting holes 20 on the distant sides, which provide a connection base.

[0035] Working principle: In use, the transmission rod 2 drives the transmission beam 3, which in turn drives the power rod 4, which in turn drives the power arm 5. The wedge block connecting rod 10, which is connected to the support fixed shaft 8, slides in the friction groove 6 opened on the power arm 5 to increase friction and provide a guiding and fixing effect. The power arm 5 is connected to the clamping jaw 12, which drives the clamping jaw 12 to clamp the workpiece. The workpiece presses against the anti-slip pressure plate 19 and anti-slip protrusions 16, which in turn presses against the friction block pressure plate 15, which in turn presses against the spring 14, increasing the friction force and thus preventing the workpiece from loosening and falling off.

[0036] During installation and disassembly, the hex socket screw 21 is inserted into the connecting hole 20, and then the clamping jaw connecting seat 17 and the fixing groove 11 are rotated. By rotating the hex socket screw 21, the clamping jaw connecting seat 17 enters the fixing groove 11, squeezing the sliding pins 18 to both sides. Because of the inclined surface design, the friction is greatly increased, thereby fixing the clamping jaw 12. By rotating the hex socket screw 21 in the opposite direction, the squeezing of the sliding pins 18 is loosened, and the clamping jaw 12 can be quickly removed. This enables the quick installation and disassembly of the clamping jaw 12, greatly shortening the replacement time and improving work efficiency.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanical hand clamp with specific anti-loosening function, comprising a driving rod (1), characterized in that: A transmission rod (2) is fixedly connected to the top of the drive rod (1), and a transmission beam (3) is fixedly connected to the top of the transmission rod (2). Two power rods (4) are rotatably connected to the left and right sides of the transmission beam (3). A power arm (5) is rotatably connected to the top of each of the two power rods (4). Two support blocks (7) are fixedly connected to the top of the drive rod (1). A support fixing shaft (8) is fixedly connected to the adjacent side of the two support blocks (7). Two connecting rods (9) are rotatably connected to the outside of the support fixing shaft (8). A wedge connecting rod (10) is rotatably connected to the distant side of each of the two connecting rods (9). A clamping claw (12) is detachably connected to the top of each of the two power arms (5). A detachable component that is easy to disassemble is fixedly connected to the bottom of each of the two clamping claws (12).

2. The mechanical hand gripper with a specific anti-loosening function according to claim 1, characterized in that: The detachable assembly includes two gripper connecting seats (17), the tops of which are fixedly connected to the bottoms of the two gripping grippers (12), and two sliding pins (18) are slidably connected to the left and right sides of the two gripper connecting seats (17).

3. The mechanical hand gripper with a specific anti-loosening function according to claim 1, characterized in that: Multiple clamping grooves (13) are provided on the adjacent side of the two clamping claws (12), and springs (14) are fixedly connected inside the multiple clamping grooves (13).

4. A robotic gripper with anti-loosening and anti-fall-off function according to claim 3, characterized in that: Friction block pressure plates (15) are fixedly connected to adjacent sides of multiple springs (14), and anti-slip protrusions (16) are fixedly connected to adjacent sides of multiple friction block pressure plates (15).

5. A robotic gripper with anti-loosening and anti-fall-off function according to claim 2, characterized in that: The top of each of the two power arms (5) is provided with a fixing groove (11), and the exterior of the plurality of sliding pins (18) is slidably connected to the interior of the fixing groove (11).

6. A robotic gripper with anti-loosening and anti-fall-off function according to claim 1, characterized in that: The two power arms (5) are provided with friction grooves (6) inside, and the two wedge connecting rods (10) are slidably connected to the inside of the friction grooves (6).

7. A robotic gripper with anti-loosening and anti-fall-off function according to claim 5, characterized in that: Both of the two clamping jaw connecting seats (17) are rotatably connected to the interior of the two hexagonal socket screws (21), and the exterior of the two hexagonal socket screws (21) are rotatably connected to the interior of the fixing groove (11).

8. A robotic gripper with anti-loosening and anti-fall-off function according to claim 2, characterized in that: Anti-slip pressure plates (19) are fixedly connected to the adjacent sides of the two clamping claws (12), and connecting holes (20) are opened on the distant sides of the two clamping claws (12).

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