Round hole stamping die capable of preventing blank from deviating

Abstract

The utility model discloses a round hole stamping die capable of preventing a blank from deviating. The round hole stamping die comprises a bottom plate, a lower die plate is fixedly installed in the center of the top of the bottom plate, a frame is fixedly installed at the top of the bottom plate, first air cylinders are fixedly installed at the positions, close to the bottom, of the two sides of the frame, and side clamping plates are arranged on the two sides of the top of the lower die plate. According to the round hole stamping die capable of preventing the blank from deviating, through the design of the mounting sleeve, the pressing rod, the pressing block, a spring, a connecting block and a ball, when the blank is punched, the pressing block can make contact with the top of the blank in advance, and therefore limiting on the top of the blank is increased on the basis that the two sides of the blank are clamped and fixed; when the punching rod continues to punch the blank downwards, due to the elastic effect of the spring, the mounting sleeve can correspondingly move downwards along with downward movement of the transverse plate, and at the moment, the pressing rod slides in the mounting sleeve through the connecting block and the balls.

Description

Technical Field

[0001] The utility model relates to the technical field of round hole stamping dies, and particularly relates to a round hole stamping die for preventing blank offset. Background Technique

[0002] A round hole stamping die is a special tool used in the manufacturing industry to quickly and accurately punch round holes in materials such as metals and plastics. It makes the punching rod penetrate the material by applying pressure, thus leaving the required round holes in the material. This kind of die is widely used in various manufacturing processes that require punching to improve production efficiency and product quality.

[0003] During the stamping process of the existing round hole stamping die, the positioning method of the blank is relatively single, mainly relying on clamping both ends of the blank. However, this simple positioning method is insufficient when facing complex stamping processes. When the blank is subjected to punching pressure, due to the lack of multi-point support and a stable fixing mechanism, the blank is prone to instability, resulting in position offset. This position offset will not only affect the accuracy and consistency of punching, but may also cause damage to the die itself, reducing its service life. More seriously, the position offset may also lead to a decline in product quality, and even fail to meet the actual needs of customers, bringing economic losses and reputation damage to the production enterprise. Therefore, we propose a round hole stamping die for preventing blank offset. Content of the Utility Model

[0004] The purpose of the utility model is to provide a round hole stamping die for preventing blank offset, so as to solve the problem raised in the above background technique that during the stamping process of the existing round hole stamping die, the positioning method of the blank is relatively single, mainly relying on clamping both ends of the blank. However, this simple positioning method is insufficient when facing complex stamping processes. When the blank is subjected to punching pressure, due to the lack of multi-point support and a stable fixing mechanism, the blank is prone to instability, resulting in position offset. This position offset will not only affect the accuracy and consistency of punching, but may also cause damage to the die itself, reducing its service life. More seriously, the position offset may also lead to a decline in product quality, and even fail to meet the actual needs of customers, bringing economic losses and reputation damage to the production enterprise.

[0005] To achieve the above object, the present utility model provides the following technical solution: A round hole stamping die for preventing blank offset, comprising a bottom plate, a lower template is fixedly installed at the center of the top of the bottom plate, a frame is fixedly installed on the top of the bottom plate, first cylinders are fixedly installed at the bottom positions near both sides of the frame, side clamping plates are arranged on both sides of the top of the lower template, a cross plate is arranged at the upper end of the lower template, two mounting sleeves are fixedly installed at the center of the top of the cross plate, pressing rods are arranged at the lower ends of the two mounting sleeves, a spring is fixedly connected to the top inside the mounting sleeve, the bottom of the spring is fixedly connected to a connecting block, a ball is rotatably installed on the outer wall of the connecting block, pressing blocks are fixedly installed at the lower ends of the two pressing rods, and a punching rod is fixedly installed at the center of the bottom of the cross plate.

[0006] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0007] For this round hole stamping die for preventing blank offset, through the design of the mounting sleeve, pressing rod, pressing block, spring, connecting block and ball, when punching the blank, the pressing block will contact the top of the blank in advance, so that on the basis of clamping and fixing both sides of the blank, the limit on its top is increased. When the punching rod continues to punch the blank downward, due to the elastic action of the spring, the mounting sleeve will move downward correspondingly as the cross plate moves downward. At this time, the pressing rod slides inside the mounting sleeve through the ball by means of the connecting block, causing the spring to be compressed. The compression force of the spring can continuously abut against the connecting block, so that the pressing block always closely adheres to the top of the blank. This design can effectively prevent the offset phenomenon caused by uneven force on the blank during the punching process, thus ensuring the punching accuracy and consistency, improving the overall quality of the product. At the same time, during the punching process, it plays a buffering role, reduces the risk of die damage, extends the service life of the die, and brings significant economic benefits to the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of the present utility model;

[0009] Figure 2 is of the present utility model Figure 1 partial enlarged schematic diagram of A in;

[0010] Figure 3 is a three-dimensional structural diagram of the mounting sleeve of the present utility model;

[0011] Figure 4 is the front view of the structure of the present utility model.

[0012] In the figure: 1, bottom plate; 2, lower template; 3, frame; 4, first cylinder; 5, side clamping plate; 6, cross plate; 7, mounting sleeve; 8, pressing rod; 9, pressing block; 10, spring; 11, connecting block; 12, ball; 13, rubber plate; 14, punching rod; 15, second cylinder. Specific implementation mode

[0013] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0014] Please refer to Figures 1-4 , the present invention provides a technical solution: a round hole punching die for preventing blank offset, including a bottom plate 1, a lower template 2 is fixedly installed at the center of the top of the bottom plate 1, a frame 3 is fixedly installed on the top of the bottom plate 1, first cylinders 4 are fixedly installed at the bottom positions on both sides of the frame 3, side clamping plates 5 are arranged on both sides of the top of the lower template 2, a cross plate 6 is arranged at the upper end of the lower template 2, two mounting sleeves 7 are fixedly installed at the center of the top of the cross plate 6, pressing rods 8 are arranged at the lower ends of the two mounting sleeves 7, a spring 10 is fixedly connected to the top inside the mounting sleeve 7, a connecting block 11 is fixedly connected to the bottom of the spring 10, balls 12 are rotatably installed on the outer wall of the connecting block 11, pressing blocks 9 are fixedly installed at the lower ends of the two pressing rods 8, and a punching rod 14 is fixedly installed at the center of the bottom of the cross plate 6.

[0015] Round grooves are provided at the centers of the top of the bottom plate 1 and the top of the lower template 2, and the two round grooves arranged up and down are communicated. This design is to facilitate the smooth entry and discharge of waste or finished products during the stamping process, ensuring the continuity and efficiency of the stamping operation.

[0016] Both of the first cylinders 4 are fixedly connected to first piston rods through the output ends on the opposite sides, and the opposite ends of the two first piston rods penetrate into the interior of the frame 3 and are respectively fixedly connected to the bottom positions on the opposite sides of the two side clamping plates 5. Through the telescopic movement of the first cylinders 4, the side clamping plates 5 can be driven to clamp the materials placed in the die in the horizontal direction, ensuring that the materials will not shift during the stamping process.

[0017] The lower ends of both mounting sleeves 7 penetrate to the outside of the cross plate 6. The number of balls 12 is several, and the surfaces of several balls 12 are all in contact with the inner wall of the mounting sleeve 7. The tops of the two pressure rods 8 respectively penetrate into the two mounting sleeves 7 and are respectively fixedly connected to the centers of the bottoms of the two connecting blocks 11. This design enables the pressure rod 8 to slide vertically through the rolling of the balls 12 in the mounting sleeve 7 when a downward pressure is applied. At the same time, the spring 10 can provide buffering and reset functions to ensure that the pressing block 9 can stably limit the material during the stamping process.

[0018] Rubber plates 13 are fixedly installed on the opposite sides of the bottoms of the two pressing blocks 9 and the two side clamping plates 5. The rubber plates 13 can increase the friction between the pressing block 9 and the material, improve the stability of the limit, and at the same time can reduce the damage to the material.

[0019] Second cylinders 15 are fixedly installed at both sides near the top inside the frame 3. The second cylinders 15 are fixedly connected to second piston rods through the output ends at their bottoms. The lower ends of the two second piston rods are respectively fixedly connected to both sides of the top of the cross plate 6. Chute grooves are provided at both sides near the center of the inner wall of the frame 3. Both ends of the cross plate 6 are fixedly connected with sliders, and the two sliders are respectively slidably connected to the two chute grooves. Through the telescopic movement of the second cylinders 15, the cross plate 6 and the punching rod 14 thereon can be driven to move up and down in the vertical direction to achieve the stamping operation. At the same time, the cooperation between the sliders and the chute grooves can ensure the stability and accuracy of the cross plate 6 during the up and down movement.

[0020] A groove is provided at the center of the bottom of the bottom plate 1, and a collection box is arranged inside the groove. Cards are fixedly connected to the centers of both sides of the collection box. Card slots are respectively provided on the inner walls of the groove corresponding to one ends of the two cards, and the opposite ends of the two cards are respectively clamped inside the two card slots. The design of the collection box is used to collect the waste materials or finished products generated during the stamping process, which is convenient for cleaning and recycling. The cooperation between the cards and the card slots enables the collection box to be conveniently installed and disassembled, improving the convenience of use.

[0021] First, when performing the round hole stamping operation, first place the blank to be stamped at the top center position of the lower template 2. Then, start two first cylinders 4, which push the side clamping plates 5 towards the center through the first piston rods until the inner sides of the side clamping plates 5 are in close contact with both sides of the blank, thereby achieving horizontal clamping of the blank and ensuring that the blank does not shift during the stamping process. After the clamping is completed, the second cylinder 15 starts to work, driving the second piston rod at its bottom to move downward, thereby driving the cross plate 6 and the punching rod 14 on it to move downward. During the downward movement of the punching rod 14, the pressing block 9 on the pressing rod 8 will always closely adhere to the upper surface of the blank under the action of the spring 10, ensuring that the punching rod 14 can accurately punch out a round hole. At the same time, the rubber plate 13 at the bottom of the pressing block 9 can increase the friction with the blank, improve the stability of the limit, and reduce damage to the stamping material. After the punching rod 14 completes the stamping, the second cylinder 15 drives the cross plate 6 to rise, and the punching rod 14 leaves the blank accordingly. At this time, the waste or finished product generated by the stamping will fall into the collection box arranged in the groove at the bottom of the bottom plate 1 through the connecting round groove at the top of the bottom plate 1 and the lower template 2, facilitating subsequent cleaning and recycling.

[0022] In summary: For this round hole stamping die that prevents the blank from shifting, through the design of installing the sleeve 7, the pressing rod 8, the pressing block 9, the spring 10, the connecting block 11, and the ball 12, when punching the blank, the pressing block 9 will come into contact with the top of the blank in advance, thereby adding a limit to its top on the basis of clamping and fixing both sides of the blank. When the punching rod 14 continues to punch the blank downward, due to the elastic action of the spring 10, the mounting sleeve 7 will move downward correspondingly as the cross plate 6 moves downward. At this time, the pressing rod 8 slides inside the mounting sleeve 7 through the connecting block 11 and the ball 12, causing the spring 10 to be compressed. The compression force of the spring 10 can continuously resist the connecting block 11, thereby making the pressing block 9 always closely adhere to the top of the blank. This design can effectively prevent the offset phenomenon caused by uneven force on the blank during the punching process, thus ensuring the punching accuracy and consistency, improving the overall quality of the product. At the same time, during the punching process, it plays a buffering role, reducing the risk of die damage and extending the service life of the die, bringing significant economic benefits to the enterprise.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A round hole stamping die for preventing blank offset, comprising a bottom plate (1), characterized in that: A lower template (2) is fixedly installed at the center of the top of the bottom plate (1). A frame (3) is fixedly installed on the top of the bottom plate (1). At the bottom positions near both sides of the frame (3), first cylinders (4) are fixedly installed on both sides. On both sides of the top of the lower template (2), side clamping plates (5) are provided. At the upper end of the lower template (2), a cross plate (6) is provided. At the center of the top of the cross plate (6), two mounting sleeves (7) are fixedly installed. At the lower ends of the two mounting sleeves (7), pressure rods (8) are provided. At the top inside the mounting sleeve (7), a spring (10) is fixedly connected. At the bottom of the spring (10), a connecting block (11) is fixedly connected. On the outer wall of the connecting block (11), a ball (12) is rotatably installed. At the lower ends of the two pressure rods (8), pressure blocks (9) are fixedly installed. At the center of the bottom of the cross plate (6), a punching rod (14) is fixedly installed.

2. The round hole stamping die for preventing blank offset according to claim 1, characterized in that: Round grooves are respectively opened at the centers of the top of the bottom plate (1) and the top of the lower template (2), and the two round grooves arranged up and down are communicated.

3. A round hole stamping die for preventing blank offset according to claim 1, characterized in that: Both of the two first cylinders (4) are fixedly connected with first piston rods through the output ends on the opposite sides. The opposite ends of the two first piston rods respectively penetrate into the interior of the frame (3) and are fixedly connected with the positions near the bottom on the opposite sides of the two side clamping plates (5).

4. A round hole stamping die for preventing blank offset according to claim 1, characterized in that: The lower ends of the two mounting sleeves (7) respectively penetrate to the outside of the cross plate (6). The number of the balls (12) is several. The surfaces of the several balls (12) are all in contact with the inner wall of the mounting sleeve (7). The tops of the two pressure rods (8) respectively penetrate into the interiors of the two mounting sleeves (7) and are fixedly connected with the centers at the bottoms of the two connecting blocks (11).

5. A round hole stamping die for preventing blank offset according to claim 1, characterized in that: Rubber plates (13) are fixedly installed on the bottom of the two pressure blocks (9) and the opposite sides of the two side clamping plates (5).

6. A round hole stamping die for preventing blank offset according to claim 1, characterized in that: At the positions near both sides of the inner top of the frame (3), second cylinders (15) are fixedly installed. The second cylinders (15) are fixedly connected with second piston rods through the output ends at their bottoms. The lower ends of the two second piston rods are respectively fixedly connected with both sides of the top of the cross plate (6). At the positions near the centers on both sides of the inner wall of the frame (3), chutes are opened. Both ends of the cross plate (6) are fixedly connected with sliders, and the two sliders are respectively slidably connected with the two chutes.

7. A round hole stamping die for preventing blank offset according to claim 1, characterized in that: A groove is opened at the center of the bottom of the bottom plate (1). A collection box is arranged inside the groove. At the centers of both sides of the collection box, clamping plates are fixedly connected. At one ends corresponding to the two clamping plates on the inner wall of the groove, clamping slots are opened. The opposite ends of the two clamping plates are respectively clamped in the interiors of the two clamping slots.

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