A new type of presser jaw mechanism

Abstract

This application provides a novel pressure gripper mechanism, belonging to the field of pressure gripper technology. It includes a pressure gripper base, on which a cylinder, a first limiting block, and a guide rail are mounted. A fixed shaft is mounted on the cylinder, and a power block is mounted on the fixed shaft. A clamping shaft is connected to the power block. A moving block is mounted on the guide rail. A buffer block is connected to the clamping shaft, and a compression spring is mounted on the buffer block. A second bearing is mounted on the buffer block via a bearing pin. A rotating block is rotatably connected to the moving block via a rotating shaft. A pressure plate is fixed on the rotating block. A second limiting block, a spring support, a tension spring, and a guide shaft are mounted on the moving block. The rotating block makes wedge-shaped contact with the second bearing, and a clamping structure is formed between the rotating block and the second bearing via the tension spring. The fixed shaft is connected to the power block via bolts. This application solves the problems of existing pressure gripper structures having large structural thickness and limited movement modes.

Description

Technical Field

[0001] This utility model relates to the field of pressure claw technology, and more specifically, to a novel pressure claw mechanism. Background Technology

[0002] A gripper mechanism is a clamping and positioning device used in semiconductor packaging. The main function of the gripper is to stably press the bare copper frame onto the heating platform during the heating process, preventing the product from shifting or deforming, and providing a closed protective atmosphere environment for subsequent processes.

[0003] As process requirements become increasingly sophisticated, equipment functions are becoming more complex, and structures are becoming more compact. In existing technologies, gripper mechanisms often occupy a large space, are prone to interference with other moving parts, and are difficult to implement efficiently within a limited space. Furthermore, during production, the bare copper frame must first be placed on a heating platform. To prevent oxidation of the product at high temperatures, the frame must be fixed in place before the open area of ​​the heating platform is covered and a protective gas is introduced, only then can operations such as chip mounting be performed. This process places higher demands on the gripper mechanism's structural compactness, motion conversion efficiency, and space avoidance capabilities.

[0004] Therefore, the existing clamping claw mechanism has the following drawbacks: (1) The structure is too thick, making it impossible to effectively avoid other mechanisms in a compact device; (2) The motion mode is singular, making it difficult to achieve efficient conversion from horizontal motion to rotational motion. Utility Model Content

[0005] The purpose of this utility model is to address the problems of existing pressure claw structures having large thickness and limited movement modes.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: A new type of pressure claw mechanism is proposed to improve the above-mentioned problems.

[0007] The application is as follows: The device includes a pressure claw base, on which a cylinder, a first limiting block, and a guide rail are mounted. A fixed shaft is mounted on the cylinder, and a power block is mounted on the fixed shaft. A clamping shaft is connected to the power block. A moving block is mounted on the guide rail. A buffer block is connected to the clamping shaft. A second bearing is mounted on the buffer block via a bearing pin. A rotating block is rotatably connected to the moving block via a rotating shaft. A pressure plate is fixed on the rotating block. A second limiting block, a spring support, a tension spring, and a guide shaft are mounted on the moving block.

[0008] As a preferred technical solution of this application, the rotating block is in wedge contact with the second bearing, and the rotating block forms a pressing structure with the second bearing through a tension spring.

[0009] As a preferred technical solution of this application, the fixed shaft is connected to the power block by bolts, and the power block and the clamping shaft are connected by bolts.

[0010] As a preferred technical solution of this application, two first bearings are symmetrically installed on the moving block, and the rotating shaft passes through the two first bearings and the rotating block and fixes them thereon.

[0011] As a preferred technical solution of this application, a bushing is installed on the moving block, and the guide shaft passes through the bushing, the buffer block and the compression spring in sequence.

[0012] As a preferred technical solution of this application, the buffer block is fixedly connected to the piston rod of the cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: 1. Compared with traditional structures, the overall structure of this pressure claw is lighter and thinner, which solves the problem of mechanism interference caused by the increase of equipment functions and compact space, provides necessary clearance space for other moving parts, and optimizes the overall layout of the equipment; 2. The structure combines wedge contact with spring reset, which converts the horizontal linear motion of the cylinder into the rotational clamping motion of the pressure claw, improving the control accuracy of the device. The tension spring ensures that the rotating block and the second bearing are always in contact, thus ensuring the continuity and stability of the wedge transmission process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the buffer block and the compression spring of this utility model; Figure 3 This is a schematic diagram of the bearing pin and the second bearing structure of this utility model. Figure 4 This is a schematic diagram of the connection structure between the clamping shaft and the buffer block of this utility model; Figure 5 This is a schematic diagram of the horizontal state of the pressure plate of this utility model; Figure 6 This is a schematic diagram of the overall structure of the cover plate of this utility model.

[0015] The diagram shows: 1. Claw base; 101. Claw body; 102. Product; 103. Heating element; 104. Cover plate; 2. Rotating block; 3. Pressure plate; 4. Cylinder; 5. Fixed shaft; 6. Bushing; 7. Rotating shaft; 8. First bearing; 9. Moving block; 10. First limiting block; 11. Power block; 12. Pressing shaft; 13. Guide shaft; 14. Second limiting block; 15. Spring support; 16. Tension spring; 17. Buffer block; 18. Compression spring; 19. Guide rail; 20. Bearing pin; 21. Second bearing. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0017] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0018] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Example 1: like Figures 1-6As shown, this embodiment proposes a novel pressure claw mechanism, including a pressure claw base 1. A cylinder 4, a first limiting block 10, and a guide rail 19 are mounted on the pressure claw base 1. A fixed shaft 5 is mounted on the cylinder 4. A power block 11 is provided on the fixed shaft 5. A pressing shaft 12 is connected to the power block 11. A moving block 9 is provided on the guide rail 19. A buffer block 17 is connected to the pressing shaft 12. A second bearing 21 is mounted on the buffer block 17 through a bearing pin 20. A rotating block 2 is rotatably connected to the moving block 9 through a rotating shaft 7. A pressure plate 3 is fixed on the rotating block 2. A second limiting block 14, a spring support 15, a tension spring 16, and a guide shaft 13 are provided on the moving block 9.

[0022] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. like Figures 1-3 As shown, in a preferred embodiment, based on the above method, the rotating block 2 further engages with the second bearing 21 in a wedge shape. The rotating block 2 forms a pressing structure with the second bearing 21 through the tension spring 16, and the rotating block 2 and the second bearing 21 form a wedge-shaped motion relationship. Under the drive of the cylinder 4, the horizontal movement of the second bearing 21 passes through this wedge-shaped contact surface, causing the rotating block 2 to rotate around the rotating shaft 7. The function of the tension spring 16 is to ensure that the rotating block 2 and the second bearing 21 always maintain contact in any working position, ensuring the reliability of motion transmission.

[0023] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the fixed shaft 5 is further connected to the power block 11 by bolts, and the power block 11 and the clamping shaft 12 are bolted together, which ensures the rigid connection of the power transmission components.

[0024] like Figure 1 As shown, in a preferred embodiment, based on the above method, two first bearings 8 are symmetrically installed on the moving block 9, and the rotating shaft 7 passes through the two first bearings 8 and the rotating block 2 and fixes them to ensure that the rotating block 2 is stably supported.

[0025] like Figures 1-4 As shown, in a preferred embodiment, based on the above method, a bushing 6 is further installed on the moving block 9, and the guide shaft 13 passes through the bushing 6, the buffer block 17 and the compression spring 18 in sequence. The buffer block 17 is fixedly connected to the piston rod of the cylinder 4. The buffer block 17 and the compression spring 18 can absorb the impact, thereby playing a buffering and protective role.

[0026] Specifically, when using this new type of pressure claw mechanism: (e.g.) Figures 1-5As shown, the rotating block 2 and the second bearing 21 form a wedge-shaped kinematic pair through their contacting inclined surfaces. When the cylinder 4 retracts, it drives the power block 11, the clamping shaft 12, and the buffer block 17 to move horizontally. The rotating block 2 moves along with the buffer block 17. Under the action of the tension spring 16, the rotating block 2 and the second bearing 21 remain in contact. As the cylinder 4 continues to retract, the second limit block 14 moves to the position of the first limit block 10. Under the flexible connection between the buffer block 17 and the compression spring 18, the buffer block 17 compresses the compression spring 18 and continues to move a short distance, thereby absorbing energy and providing a buffering and protective function. Finally, the pressure plate 3 performs a clamping or releasing action as the rotating block 2 rotates.

[0027] like Figure 1 and Figure 6 As shown, in actual use, the product 102 is placed inside the heating element 103, and the product 102 is pressed down by the pressure claw body 101 on the pressure claw base 1. After the cover plate 104 is rotated 90° to cover the product 102, protective gas is introduced. After the heating element 103 is heated to the set temperature, the product 102 is mounted.

[0028] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A novel pressure claw mechanism, comprising a pressure claw base (1), characterized in that, The pressure claw base (1) is equipped with a cylinder (4), a first limiting block (10) and a guide rail (19). The cylinder (4) is equipped with a fixed shaft (5). The fixed shaft (5) is equipped with a power block (11). The power block (11) is connected to a pressing shaft (12). The guide rail (19) is equipped with a moving block (9). The pressing shaft (12) is connected to a buffer block (17). The buffer block (17) is equipped with a second bearing (21) through a bearing pin (20). The moving block (9) is rotatably connected to a rotating block (2) through a rotating shaft (7). The rotating block (2) is fixed with a pressure plate (3). The moving block (9) is equipped with a second limiting block (14), a spring support (15), a tension spring (16), and a guide shaft (13).

2. The novel pressure claw mechanism according to claim 1, characterized in that, The rotating block (2) is in wedge contact with the second bearing (21), and the rotating block (2) forms a pressing structure with the second bearing (21) through the tension spring (16).

3. The novel pressure claw mechanism according to claim 1, characterized in that, The fixed shaft (5) is connected to the power block (11) by bolts, and the power block (11) and the clamping shaft (12) are bolted together.

4. The novel pressure claw mechanism according to claim 1, characterized in that, Two first bearings (8) are symmetrically mounted on the moving block (9), and the rotating shaft (7) passes through the two first bearings (8) and the rotating block (2) and fixes them.

5. A novel pressure claw mechanism according to claim 1, characterized in that, A bushing (6) is installed on the moving block (9), and the guide shaft (13) passes through the bushing (6), the buffer block (17), and the compression spring (18) in sequence.

6. The novel pressure claw mechanism according to claim 1, characterized in that, The buffer block (17) is fixedly connected to the piston rod of the cylinder (4).

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