A draw bead forming die

Abstract

The utility model relates to a kind of punch forming die, belong to punch processing technical field, including fixed plate, the top of fixed plate is provided with stamping assembly;Stamping assembly includes the first hydraulic ram fixedly installed in the top of fixed plate, and the output shaft of first hydraulic ram is fixedly installed with mounting plate, and the outer wall of mounting plate is fixedly installed with punch, and the side of punch away from mounting plate is correspondingly provided with positioning assembly;Positioning assembly includes the positioning frame fixedly connected in the top of fixed plate, and the inboard of positioning frame is slidably installed with mould seat, and the side of mould seat away from positioning frame is fixedly connected with limit block, and the inner wall of positioning frame is equipped with first semicircular groove, and the outer wall of mould seat is equipped with second semicircular groove, and the side of second semicircular groove close to limit block is provided with peg cap groove, and the side of mould seat away from first hydraulic ram is provided with second hydraulic ram.The punch forming die, realize the synchronous of feeding and positioning, shorten the working hours, effectively improve the stamping efficiency, improve the practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of rivet processing technology, specifically a rivet forming mold. Background Technology

[0002] Blind rivets, also known as pop rivets, are fasteners used for single-sided riveting. However, they require a specialized tool—a rivet gun (manual, electric, or pneumatic)—for installation. They consist of a core and a sleeve. During installation, the rivet gun pulls the core, causing the hollow sleeve to expand and tightly adhere to the surface of the materials being joined, achieving single-sided riveting. As a commonly used fastener, blind rivets have a wide range of applications. They are particularly suitable for riveting situations where ordinary rivets are inconvenient, i.e., where simultaneous riveting from both sides is not possible. Therefore, they are widely used in construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture, and other products. Open-head flat-round head blind rivets are the most widely used, countersunk head blind rivets are suitable for riveting situations requiring a smooth surface, and closed-head blind rivets are suitable for riveting situations requiring higher load-bearing capacity and a certain degree of sealing performance.

[0003] In the stamping process of blind rivets, the rivet blank needs to be punched by a die. The existing stamping method for the rivet blank is to first transport the rivet blank to the stamping station by a fixture, and then push the rivet blank after the stamping rod is ejected, so that the rivet blank is pushed away from the fixture and then snapped into the mold cavity behind it.

[0004] The above-mentioned stamping method involves a rather cumbersome positioning process for the rivet blank, which requires fixing it first and then transporting it to the stamping station. This results in a significant amount of time consumption, hinders the rapid processing of the rivet blank, and reduces production efficiency. Therefore, a rivet forming die is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rivet forming mold, which has advantages such as easy and rapid positioning. It solves the problem that the positioning steps of the rivet blank in the existing stamping method are relatively cumbersome, requiring it to be fixed first and then transported to the stamping station, resulting in a lot of time consumption, which is not conducive to the rapid processing of the rivet blank and reduces production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rivet forming mold, including a fixing plate, and a stamping assembly is provided on the top of the fixing plate;

[0007] The stamping assembly includes a first hydraulic rod fixedly mounted on the top of a fixed plate, a mounting plate fixedly mounted on the output shaft of the first hydraulic rod, a punch fixedly mounted on the outer wall of the mounting plate, and a positioning assembly correspondingly provided on the side of the punch away from the mounting plate.

[0008] The positioning assembly includes a positioning frame fixedly connected to the top of the fixed plate, a mold base slidably mounted on the inner side of the positioning frame, a limit block fixedly connected to the side of the mold base away from the positioning frame, a first semi-circular groove on the inner wall of the positioning frame, a second semi-circular groove on the outer wall of the mold base, a nail head groove on the side of the second semi-circular groove near the limit block, and a second hydraulic rod on the side of the mold base away from the first hydraulic rod.

[0009] Furthermore, the first semicircular groove and the second semicircular groove are positioned opposite each other, and the inner sides of the first semicircular groove and the second semicircular groove correspond to the front end of the punch.

[0010] Furthermore, a through hole is provided on the inner side of the limiting block, and the through hole is positioned opposite to the nail head groove.

[0011] Furthermore, the cross-section of the positioning frame is concave, and the mold base is adapted to the inner wall of the positioning frame.

[0012] Furthermore, a guide rail is fixedly installed on the top of the fixing plate, the guide rail passes through the inner side of the positioning frame, and a first slider is slidably installed on the outer side of the guide rail, the outer side of the first slider is fixedly connected to the bottom of the mounting plate.

[0013] Furthermore, a second slider is slidably mounted on the outer side of the guide rail, and the outer side of the second slider is fixedly connected to the bottom of the mold base.

[0014] Furthermore, the second hydraulic rod is fixedly installed on the top of the fixed plate, and a connecting rod is fixedly installed on the output shaft of the second hydraulic rod, and the connecting rod is fixedly connected to the outer wall of the mold base.

[0015] Compared with the prior art, the present invention provides a rivet forming mold, which has the following beneficial effects:

[0016] This rivet forming die, by activating the second hydraulic rod, can move the connecting rod and simultaneously move the die base, thus adjusting the position of the die base. When the die base moves to the outer position of the positioning frame, the rivet blank can be placed through the second semi-circular groove and the rivet head groove. Then, the second hydraulic rod drives the die base to move to the inner side of the positioning frame. Once the die base is inside the positioning frame, the rivet blank is transported to the stamping station. Simultaneously, with the cooperation of the die base, positioning frame, and limit block, the rivet blank is also positioned, achieving simultaneous feeding and positioning. This shortens the working time, effectively improves stamping efficiency, and enhances the practicality of the device. It solves the problem that the positioning steps for the rivet blank in the existing stamping method are cumbersome, requiring the blank to be fixed and transported to the stamping station first, resulting in a large amount of time consumption, which is not conducive to the rapid processing of the rivet blank and reduces production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the rivet forming mold of this utility model;

[0018] Figure 2 This is a schematic diagram of the mold base in the rivet forming mold of this utility model;

[0019] Figure 3 This is a schematic diagram of the mold base and limiting block in the practical rivet forming mold;

[0020] Figure 4 This is a schematic diagram of the positioning frame in the practical rivet forming mold.

[0021] In the diagram: 1. Fixing plate; 2. First hydraulic rod; 3. Mounting plate; 4. Punch; 5. Positioning frame; 6. Die base; 7. Limiting block; 8. First semi-circular groove; 9. Second semi-circular groove; 10. Nail head groove; 11. Through hole; 12. Second hydraulic rod; 13. Connecting rod; 14. Guide rail; 15. First slider; 16. Second slider; 17. Rivet blank. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 4 In this embodiment, a rivet forming mold includes a fixed plate 1. A stamping assembly is provided on the top of the fixed plate 1. The stamping assembly includes a first hydraulic rod 2 fixedly installed on the top of the fixed plate 1. An mounting plate 3 is fixedly installed on the output shaft of the first hydraulic rod 2. A punch 4 is fixedly installed on the outer wall of the mounting plate 3. By activating the first hydraulic rod 2, the mounting plate 3 can be moved, and the mounting plate 3 will drive the punch 4 to move synchronously. The punch 4 performs the function of punching holes in the rivet blank 17.

[0024] In this embodiment, a positioning component is provided on the side of the punch 4 away from the mounting plate 3. The positioning component includes a positioning frame 5 fixedly connected to the top of the fixing plate 1. A mold base 6 is slidably installed on the inner side of the positioning frame 5. The cross-section of the positioning frame 5 is concave. The mold base 6 is adapted to the inner wall of the positioning frame 5. A limiting block 7 is fixedly connected on the side of the mold base 6 away from the positioning frame 5. A first semi-circular groove 8 is provided on the inner wall of the positioning frame 5. A second semi-circular groove 9 is provided on the outer wall of the mold base 6. A nail head groove 10 is provided on the side of the second semi-circular groove 9 near the limiting block 7. The first semi-circular groove 8 and the second semi-circular groove 9 are opposite each other. The inner sides of the first semi-circular groove 8 and the second semi-circular groove 9 correspond to the front end of the punch 4. The cooperation between the second semi-circular groove 9 and the nail head groove 10 facilitates the placement of the rivet blank 17. The cooperation between the first semi-circular groove 8 and the second semi-circular groove 9 facilitates the positioning of the rivet blank 17.

[0025] It should be noted that a through hole 11 is provided on the inner side of the limiting block 7. The through hole 11 is opposite to the nail head groove 10. The through hole 11 facilitates the punch 4 to penetrate the rivet blank 17, thus ensuring the punching effect.

[0026] The mold base 6 is provided with a second hydraulic rod 12 on the side away from the first hydraulic rod 2. The second hydraulic rod 12 is fixedly installed on the top of the fixed plate 1. A connecting rod 13 is fixedly installed on the output shaft of the second hydraulic rod 12. The connecting rod 13 is fixedly connected to the outer wall of the mold base 6. By activating the second hydraulic rod 12, the connecting rod 13 can be moved, and the mold base 6 can be moved synchronously, thereby adjusting the position of the mold base 6.

[0027] It should be noted that a guide rail 14 is fixedly installed on the top of the fixed plate 1. The guide rail 14 passes through the inner side of the positioning frame 5. A first slider 15 is slidably installed on the outer side of the guide rail 14. The outer side of the first slider 15 is fixedly connected to the bottom of the mounting plate 3. By activating the first hydraulic rod 2, the mounting plate 3 can be moved. The mounting plate 3 will then move the first slider 15 synchronously, causing the first slider 15 to slide along the outer side of the guide rail 14. With the cooperation of the first slider 15 and the guide rail 14, the mounting plate 3 is guided, thereby guiding the punch 4, ensuring stable stamping and improving the stability of the structure.

[0028] In addition, a second slider 16 is slidably installed on the outer side of the guide rail 14. The outer side of the second slider 16 is fixedly connected to the bottom of the mold base 6. By activating the second hydraulic rod 12, the connecting rod 13 can be moved, which in turn moves the mold base 6 synchronously. The mold base 6 will then move the second slider 16 synchronously, causing the second slider 16 to slide along the outer side of the guide rail 14. With the cooperation of the second slider 16 and the guide rail 14, the mold base 6 is guided, ensuring that the mold base 6 is stably connected to the positioning frame 5 and improving the stability of the structure.

[0029] The working principle of the above embodiments is as follows:

[0030] In use, by activating the second hydraulic rod 12, the connecting rod 13 can be moved, and the mold base 6 can be moved synchronously to adjust the position of the mold base 6. When the mold base 6 moves to the outer position of the positioning frame 5, the rivet blank 17 can be placed through the second semi-circular groove 9 and the nail head groove 10. Then, the second hydraulic rod 12 drives the mold base 6 to move to the inner side of the positioning frame 5. When the mold base 6 moves to the inner side of the positioning frame 5, the rivet blank 17 is transported to the stamping station. At the same time, with the cooperation of the mold base 6, the positioning frame 5 and the limiting block 7, the positioning of the rivet blank 17 is also completed. Then, the first hydraulic rod 2 is activated to move the mounting plate 3. The mounting plate 3 will drive the punch 4 to move synchronously. The punch 4 performs the function of punching holes in the rivet blank 17.

[0031] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented. It should be noted that the orientation or positional relationship indicated herein is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and is not intended to 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 of this application.

Claims

1. A rivet forming mold, characterized in that: Includes a fixing plate, the top of which is provided with a stamping assembly; The stamping assembly includes a first hydraulic rod fixedly installed on the top of a fixed plate, an mounting plate fixedly installed on the output shaft of the first hydraulic rod, a punch fixedly installed on the outer wall of the mounting plate, and a positioning assembly correspondingly provided on the side of the punch away from the mounting plate. The positioning assembly includes a positioning frame fixedly connected to the top of the fixing plate. A mold base is slidably installed on the inner side of the positioning frame. A limit block is fixedly connected to the side of the mold base away from the positioning frame. A first semi-circular groove is formed on the inner wall of the positioning frame. A second semi-circular groove is formed on the outer wall of the mold base. A nail head groove is provided on the side of the second semi-circular groove near the limit block. A second hydraulic rod is provided on the side of the mold base away from the first hydraulic rod.

2. The rivet forming die according to claim 1, characterized in that: The first semicircular groove and the second semicircular groove are positioned opposite each other, and the inner sides of the first semicircular groove and the second semicircular groove correspond to the front end of the punch.

3. The rivet forming die according to claim 1, characterized in that: The inner side of the limiting block has a through hole, which is opposite to the nail head groove.

4. The rivet forming die according to claim 1, characterized in that: The positioning frame has an inverted concave cross-section, and the mold base is adapted to the inner wall of the positioning frame.

5. The rivet forming die according to claim 1, characterized in that: A guide rail is fixedly installed on the top of the fixing plate. The guide rail passes through the inner side of the positioning frame. A first slider is slidably installed on the outer side of the guide rail. The outer side of the first slider is fixedly connected to the bottom of the mounting plate.

6. The rivet forming die according to claim 5, characterized in that: A second slider is slidably mounted on the outer side of the guide rail, and the outer side of the second slider is fixedly connected to the bottom of the mold base.

7. The rivet forming die according to claim 1, characterized in that: The second hydraulic rod is fixedly installed on the top of the fixed plate, and a connecting rod is fixedly installed on the output shaft of the second hydraulic rod. The connecting rod is fixedly connected to the outer wall of the mold base.

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