Buffering punch forming structure

Abstract

The utility model discloses a buffering punch forming structure, which relates to the technical field of punching processing, is matched with a punch press for use and comprises a fixing plate, the fixing plate is arranged on the punch press, a plurality of connecting components are arranged between the fixing plate and the punch press, a sliding groove penetrates through the fixing plate, a forming table is arranged in the sliding groove in a sliding manner, and a pressing piece is arranged above the forming table. The buffering piece is coaxially arranged at the bottom of the forming table. According to the stamping forming structure capable of buffering, effective absorption and dispersion of impact force can be achieved through the buffering piece, the forming precision is improved, the service life of equipment is prolonged, the maintenance cost is reduced, and the quality of stamping pieces is ensured.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, specifically to a cushionable stamping structure. Background Technology

[0002] Stamping is an important metal processing method widely used in the manufacturing of parts for the automotive, electronics, and home appliance industries. Traditional stamping structures typically include a die fixed to a press and a pressing component connected to the press punch. The workpiece is formed by the up-and-down movement of the punch.

[0003] However, during the stamping process, the punch generates a huge impact force the moment it comes into contact with the material. This impact force not only causes significant wear to the mold and the punch itself, shortening the service life of the equipment, but also leads to quality problems such as deformation and cracks in the stamped parts. Utility Model Content

[0004] The purpose of this invention is to provide a bufferable stamping structure. This bufferable stamping structure can effectively absorb and disperse impact force through buffer components, thereby improving forming accuracy and equipment service life, reducing maintenance costs, and ensuring the quality of stamped parts.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a bufferable stamping structure, used in conjunction with a punch press, including a fixing plate, wherein the fixing plate is disposed on the punch press;

[0006] Multiple connecting components are disposed between the fixed plate and the punch press;

[0007] A sliding groove, which extends through the fixed plate;

[0008] A forming table, wherein the forming table is slidably disposed within the sliding groove;

[0009] A pressing component, which is disposed above the forming table and fixedly connected to the punch press;

[0010] A buffer element is coaxially disposed at the bottom of the forming platform.

[0011] In some embodiments, the punch press includes a fixed base;

[0012] A stamping table, which is mounted on the fixed base, and the connecting assembly connects the stamping table and the fixed plate;

[0013] A stamping groove is provided that extends through the stamping table;

[0014] A punch is located above the stamping table and is coaxially arranged with the stamping groove. The bottom of the punch is provided with the pressing component.

[0015] In some embodiments, the connecting component includes a fixing block, one end of which is pressed against the fixing plate;

[0016] A connecting screw, which passes through the other end of the fixing block, and the bottom of the connecting screw is screwed into the stamping table;

[0017] A locking nut is screwed into the connecting screw and pressed onto the fixing block.

[0018] In some embodiments, the connecting component further includes a waist-shaped hole that extends through the fixing block.

[0019] In some embodiments, the buffer is a spring-loaded rubber rod.

[0020] In some embodiments, a pad is also included, which is coaxially disposed at the bottom of the buffer.

[0021] In some embodiments, the buffer is a hydraulic cylinder, and the output shaft of the hydraulic cylinder is coaxially fixed to the bottom of the forming table.

[0022] In summary, this utility model has the following beneficial effects:

[0023] This invention effectively buffers the impact force between the punch and the forming table during the stamping process by installing a buffer at the bottom of the forming table. When the punch moves downward and contacts the material on the forming table, the buffer first deforms under pressure. Simultaneously, the buffer undergoes elastic deformation, absorbing part of the impact force and storing it as elastic potential energy. When the punch returns, the buffer releases this elastic potential energy, pushing the forming table back to its original position. This reduces the impact force between the punch and the forming table, decreases wear on the mold and press, extends the service life of the equipment, reduces maintenance costs, and reduces quality problems such as deformation and cracks in stamped parts caused by excessive impact force, thus improving the product qualification rate.

[0024] This invention uses a hydraulic cylinder as a buffer component. By adjusting the oil pressure inside the cylinder, the damping force of the buffer component can be adjusted, enabling accurate adjustment of the buffer component and improving its buffering accuracy. At the same time, when the hydraulic damping force inside the hydraulic cylinder is damaged, the oil pressure inside the cylinder can be adjusted to maintain a suitable damping force, thereby avoiding the need to replace the buffer component due to damping force damage, thus extending the service life of the entire structure and reducing maintenance frequency and costs. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the connection structure between the present invention and the punch press;

[0026] Figure 2 This is a schematic diagram of the punch press of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the present invention, embodiment 1, which removes the forming platform.

[0029] In the diagram: 1. Fixing plate; 2. Connecting assembly; 21. Fixing block; 22. Connecting screw; 23. Locking nut; 24. Waist-shaped hole; 3. Sliding groove; 4. Forming table; 5. Pressing part; 6. Buffer part; 7. Punch press; 71. Fixing base; 72. Punching table; 73. Punching groove; 74. Punch; 8. Pad plate. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] refer to Figure 1-4A bufferable stamping structure, used in conjunction with a punch press 7, includes a fixed plate 1, multiple connecting components 2, a sliding groove 3, a forming table 4, a pressing component 5, and a buffer component 6. The fixed plate 1 is mounted on the punch press 7 and serves as the foundation for connecting the entire forming structure to the punch press 7. The fixed plate 1 can be made of high-strength alloy steel, possessing good rigidity and strength, capable of withstanding the enormous pressure and vibration generated during the stamping process, ensuring the stability of the forming structure. Multiple connecting components 2 are located between the fixed plate 1 and the punch press, enabling a reliable connection between the fixed plate 1 and the punch press. The number of connecting components 2 is rationally set according to the size of the forming structure and stamping requirements, generally four or more, evenly distributed around the fixed plate 1. The sliding groove 3 penetrates through the fixed plate 1, and its shape and size can be designed according to the movement requirements of the forming table 4. It can be a rectangular or T-shaped groove, providing a track for the sliding of the forming table 4 to ensure that the forming table 4 can move smoothly within the sliding groove 3. The forming table 4 is slidably disposed within the sliding groove 3, and can bear the workpiece to be stamped. The pressing component 5 is disposed above the forming table 4 and is fixedly connected to the punch press 7. The pressing component 5 can apply pressure to the forming table 4 during the stamping process, so that the material to be stamped can be tightly attached to the forming table 4, thereby ensuring the forming quality of the stamped part. The pressing surface between the pressing component 5 and the forming table 4 can be set according to the actual stamping requirements. This is existing technology and will not be described in detail here. The buffer component 6 is coaxially disposed at the bottom of the forming table 4, and can provide buffering force during the stamping process, thereby achieving effective absorption and dispersion of impact force, improving forming accuracy and equipment service life, reducing maintenance costs, and ensuring the quality of the stamped part.

[0032] In some embodiments, the forming table 4 is provided with sliders on both sides symmetrically, and the inner wall of the sliding groove 3 is provided with a groove. The sliders and the groove slide together to restrict the movement direction of the forming table 4, ensuring that it slides along a predetermined trajectory during the stamping process and avoiding deviation and shaking.

[0033] In some embodiments, the punch press 7 includes a fixed base 71, a punching table 72, a punching groove 73, and a punch 74, among other structures. The punching table 72 is mounted on the fixed base 71 and is connected to the fixed plate 1 via a connecting component 2. The connecting component 2 enables adjustment of the relative position between the fixed plate 1 and the punching table 72 to accommodate stamping dies of different sizes and shapes. The punching groove 73 extends through the punching table 72. The punch 74 is mounted above the punching table 72 and is coaxially mounted with the punching groove 73. A pressing member 5 is provided at the bottom of the punch 74.

[0034] In some embodiments, the connecting assembly 2 includes a fixing block 21, a connecting screw 22, and a locking nut 23. One end of the fixing block 21 is pressed onto the fixing plate 1. The fixing block 21 can be made of high-strength steel, possessing sufficient strength and rigidity to ensure reliable connection. The connecting screw 22 passes through the other end of the fixing block 21, and its bottom is screwed into the stamping table 72. The locking nut 23 is screwed into the connecting screw 22 and pressed onto the fixing block 21. By tightening the locking nut 23, the fixing block 21 can be firmly fixed onto the connecting screw 22, thereby applying downward pressure to the fixing plate 1 and achieving a reliable connection between the fixing plate 1 and the stamping table 72.

[0035] In some embodiments, the connecting assembly 2 further includes a slotted hole 24 that penetrates the fixing block 21. The length direction of the slotted hole 24 is consistent with the adjustment direction of the fixing plate 1. The slotted hole 24 allows the connecting screw 22 to move freely within the hole, thereby achieving relative position adjustment between the fixing plate 1 and the stamping table 72. When the position of the fixing plate 1 needs to be adjusted, the locking nut 23 is loosened, and the fixing plate 1 is moved so that the connecting screw 22 slides to a suitable position within the slotted hole 24. Then, the locking nut 23 is tightened to fix the fixing plate 1 in the new position.

[0036] The specific working principle is as follows:

[0037] First, the fixing plate 1 is placed at a predetermined position on the stamping table 72. Then, the fixing block 21 of the connecting component 2 is placed around the fixing plate 1, and the connecting screw 22 is passed through the waist-shaped hole 24 and the mounting hole of the fixing block 21. The bottom of the connecting screw 22 is screwed into the corresponding screw hole on the stamping table 72, and the locking nut 23 is tightened to fix the fixing plate 1 on the stamping table 72.

[0038] A buffer 6 is placed at the center of the sliding groove 3, and a forming platform 4 is placed inside the sliding groove 3 so that the forming platform 4 is fixedly connected to the top of the buffer 6. Then, the pressing part 5 is fixed to the bottom of the punch 74 and aligned with the forming platform 4 to complete the installation.

[0039] The material to be stamped is placed on the forming table 4, and the punch press 7 is started. Driven by the punch press power system, the punch 74 begins to move downwards, causing the pressing part 5 at the bottom of the punch 74 to contact the material on the forming table 4. As the punch 74 continues to move downwards, the pressing part 5 presses the material tightly onto the forming table 4, realizing the stamping of the material. During the stamping process, the buffer 6 undergoes elastic deformation, absorbing part of the impact force and converting it into elastic potential energy for storage, reducing the descent speed of the buffer head 74 and reducing the impact on the mold and the material. When the punch 74 reaches the predetermined stamping position and begins its return stroke, the buffer 6 releases its elastic potential energy, pushing the forming table 4 back to its original position, facilitating the removal of the stamped product.

[0040] Example 1:

[0041] refer to Figure 4 The buffer element 6 can be a spring-loaded rubber rod, which can be composed of highly elastic rubber material and an internal helical spring. The rubber material has good elasticity and cushioning properties, and can undergo elastic deformation when subjected to impact to absorb the impact force; the internal helical spring further enhances the elasticity and load-bearing capacity of the spring-loaded rubber rod, enabling it to withstand greater pressure.

[0042] In some embodiments, a pad 8 is also included, which is coaxially disposed at the bottom of the buffer 6. The pad 8 may be made of a hard metal material, such as stainless steel or aluminum alloy, which can increase the contact area between the spring rod and the support surface, prevent the spring rod from shifting and tilting when subjected to force, ensure the stability of the buffering effect, and at the same time reduce local stress concentration, further improving the buffering effect.

[0043] Example 2:

[0044] refer to Figure 3 The difference between this embodiment and Embodiment 1 is that the buffer 6 is a hydraulic cylinder. The output shaft of the hydraulic cylinder is coaxially fixed to the bottom of the forming table 4 and can be secured by bolts. The hydraulic cylinder can be composed of a cylinder body, piston, piston rod, etc. The cylinder body is filled with hydraulic oil. When the punch 74 moves downward and applies pressure to the forming table 4, the piston moves within the cylinder body under pressure. The hydraulic damping characteristics inside the cylinder body can buffer and absorb the impact force. A control valve can be provided on the side of the hydraulic cylinder. The control valve can adjust the oil pressure inside the hydraulic cylinder. By controlling the oil pressure, the buffering force of the buffer 6 can be flexibly adjusted according to different stamping conditions and material characteristics to achieve the best buffering effect. At the same time, by adjusting the oil pressure inside the hydraulic cylinder, the hydraulic damping characteristics of the buffer 6 can be maintained, avoiding damping loss caused by long-term use, avoiding the need to replace the buffer 6, thereby extending the service life of the entire structure.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cushionable press forming structure for use with a punch press (7) characterized by: Including a fixed plate (1), the fixed plate (1) is provided on the punch (7); A plurality of connecting assemblies (2), a plurality of connecting assemblies (2) are provided between the fixed plate (1) and the punch; A sliding groove (3) is provided through the fixed plate (1); A forming table (4) is slidably provided in the sliding groove (3); A pressing member (5) is provided above the forming table (4) and is fixedly connected with the punch (7); A buffer member (6) is coaxially provided at the bottom of the forming table (4).

2. A cushionable punch forming structure according to claim 1, wherein: The punch (7) comprises a fixed seat (71); A stamping table (72) is provided on the fixed seat (71), and the connecting assembly (2) is connected between the stamping table (72) and the fixed plate (1); A stamping groove (73) is provided through the stamping table (72); A punch (74) is provided above the stamping table (72) and coaxially arranged with the stamping groove (73), and the punch (74) is provided with the pressing member (5) at the bottom.

3. A cushionable punch forming structure according to claim 2, wherein: The connecting assembly (2) comprises a fixed block (21), one end of the fixed block (21) is pressed on the fixed plate (1); A connecting screw rod (22) penetrates the other end of the fixed block (21), and the bottom of the connecting screw rod (22) is screw connected with the stamping table (72); A locking nut (23) is screw connected with the connecting screw rod (22) and is pressed on the fixed block (21).

4. A cushionable punch forming structure according to claim 3, wherein: The connecting assembly (2) further comprises a waist-shaped hole (24) penetrating the fixed block (21).

5. A cushionable punch forming structure according to claim 1, wherein: The buffer member (6) is a spring rubber rod.

6. A cushionable punch forming structure according to claim 5, wherein: It further comprises a backing plate (8) coaxially arranged at the bottom of the buffer member (6).

7. A cushionable impact-attenuating structure according to claim 1, wherein: The buffer member (6) is a hydraulic oil cylinder, and the output shaft of the hydraulic oil cylinder is coaxially fixed at the bottom of the forming table (4).

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