Stamping die with buffer structure

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die with a buffer structure, which comprises a lower die holder and an upper die holder, a lower die plate is fixed on the upper end face of the lower die holder, the upper die holder is arranged above the lower die holder, an upper die plate is fixed on the lower end face of the upper die holder, and a punch is fixed in the middle of the lower end face of the upper die plate. The lower end face of the upper die plate is connected with a discharging plate through a discharging bolt, the outer end of the discharging bolt is sleeved with a second spring, and adjusting assemblies are arranged on the two sides of the lower end face of the upper die base. The adjusting assembly comprises a column body fixed to the upper die base, and a through groove is formed in the middle of the column body. Compared with the prior art, the adjusting assembly is arranged, different elastic effects can be obtained, so that different production requirements are met, the use flexibility is high, the air outlet assembly is arranged, airflow can be blown to the second spring when the upper die base is pressed downwards, and cooling of the second spring is accelerated through rapid air flowing.

Description

Technical Field

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

[0002] Stamping is a processing method that uses a die mounted on a press to apply pressure to material at room temperature, causing it to separate or plastically deform, thereby obtaining the desired parts. Stamping dies are important special process equipment in the stamping process. The structure of a stamping die mainly includes upper and lower die bases, guide structures, upper and lower templates, and a stripper plate. The stripper plate is mainly used to remove the stamped parts or scrap from the template. The main component of the stripper plate that enables the stripper plate to move elastically, thereby completing the stripping, and also plays a buffering role when the die is closed.

[0003] Stamping operations are often continuous, and the temperature of springs rises due to prolonged expansion and contraction. High temperatures affect the lifespan of springs, leading to inconsistent elasticity among them and impacting the performance of the stripper plate. Furthermore, current stamping dies have stripper plate springs that are difficult to adjust, and disassembling the springs is cumbersome, making it difficult to meet varying elasticity requirements in production. Therefore, those skilled in the art have provided a stamping die with a buffer structure to solve the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide a stamping die with a buffer structure to solve the above-mentioned technical problems.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A stamping die with a buffer structure includes a lower die base and an upper die base. A lower template is fixed on the upper end face of the lower die base. The upper die base is disposed above the lower die base and an upper template is fixed on its lower end face. A punch is fixed at the middle of the lower end face of the upper template.

[0007] The lower end face of the upper template is connected to a stripper plate by a stripper bolt. A spring is sleeved on the outer end of the stripper bolt. Adjustment components are provided on both sides of the lower end face of the upper mold base.

[0008] The adjustment assembly includes a column fixed to the upper mold base. A through groove is provided in the middle of the column. An adjustment pressure plate is slidably sleeved inside the through groove through multiple connecting columns. The adjustment pressure plate is Z-shaped, and its outer end is slidably sleeved on the outer end of the adjacent unloading bolt and abuts against the spring.

[0009] Furthermore, an adjustment groove is provided at the upper end of the column, and an adjustment stud is sleeved inside the adjustment groove. The lower end of the adjustment stud extends into the through groove and abuts against the adjustment pressure plate.

[0010] Furthermore, an air outlet assembly is provided at the lower end of the column, which can blow airflow onto the spring when the upper mold base is pressed down;

[0011] Furthermore, the air venting assembly includes a push rod and a cavity opened inside the lower end of the column. The lower end of the cavity has an opening. The push rod is fixed to the lower mold base and aligned with the lower opening of the cavity. The outer end of the column has two air vents on the side facing the second spring. The air vents are connected to the cavity.

[0012] Furthermore, a piston is slidably disposed inside the cavity, and a spring abuts against the inner wall of the cavity;

[0013] Furthermore, guide posts are fixedly connected to the upper end face of the lower mold base near the four corners, and guide sleeves are fixedly sleeved on the inner side of the upper mold base near the four corners. The guide posts and guide sleeves are slidably sleeved in a one-to-one correspondence.

[0014] Furthermore, the lower end of the unloading bolt slides through the upper template and is fixedly connected to the unloading plate by threads, and the upper protruding part of the unloading bolt abuts against the upper mold base;

[0015] The beneficial effects of this utility model are:

[0016] 1. The present invention proposes a stamping die with a buffer structure, which is equipped with an adjustment component. The adjustment screw of the adjustment component can be rotated by a tool to change its ejection length, thereby changing the height of the adjustment plate and compressing the spring to different states to obtain different elastic effects, thus meeting different production needs and making it highly flexible in use.

[0017] 2. The present invention proposes a stamping die with a buffer structure, which is equipped with an air venting component. This component can further improve the buffering effect and blow airflow onto the second spring when the upper die base is pressed down. Through the rapid airflow, the second spring is cooled down, preventing the buffering performance of the second spring from decreasing due to excessive temperature, thus improving its service life. The air venting component works by utilizing the power of the die when it is closed, eliminating the need for an additional power source. It is convenient to use and has low cost. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of a stamping die with a buffer structure proposed in this utility model;

[0020] Figure 2 This is a front view of a stamping die with a buffer structure proposed in this utility model;

[0021] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 This is a partial cross-sectional view of a stamping die with a buffer structure proposed in this utility model.

[0023] Figure label:

[0024] 1. Lower mold base; 2. Lower template; 3. Upper mold base; 4. Upper template; 5. Punch; 6. Stripper plate; 7. Adjustment assembly; 71. Column; 72. Adjustment groove; 73. Adjustment stud; 74. Through groove; 75. Connecting column; 76. Adjustment pressure plate; 8. Air vent assembly; 81. Cavity; 82. Spring 1; 83. Piston; 84. Ejector rod; 85. Air vent; 9. Guide post; 10. Guide sleeve; 11. Stripper bolt; 12. Spring 2. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see the appendix Figures 1 to 4 As shown in the figure, a stamping die with a buffer structure in an embodiment of the present invention includes a lower die base 1 and an upper die base 3. A lower template 2 is fixed on the upper end face of the lower die base 1. The upper die base 3 is disposed above the lower die base 1 and an upper template 4 is fixed on its lower end face. A punch 5 is fixed at the middle of the lower end face of the upper template 4. During stamping, the upper die base 3 is connected to the pressure device. When pressing down, the punch 5 cooperates with the mold groove of the lower template 2 to complete the stamping.

[0028] The lower end face of the upper template 4 is connected to the stripper plate 6 by the stripper bolt 11. The outer end of the stripper bolt 11 is fitted with a spring 12. Adjustment components 7 are provided on both sides of the lower end face of the upper mold base 3. The stripper plate 6 is used to remove the material clamped to the outer end of the punch 5 after stamping. The spring 12 can play a buffering role when the stripper plate 6 contacts the lower template 2, and also allows the stripper plate 6 to retract during stamping without interfering with the punch 5. The adjustment components 7 can adjust the elasticity of the spring 12 to meet different production needs.

[0029] Specifically, the adjusting assembly 7 includes a column 71 fixed to the upper mold base 3. A through groove 74 is provided in the middle of the column 71. An adjusting pressure plate 76 is slidably sleeved inside the through groove 74 through multiple connecting columns 75. The adjusting pressure plate 76 is Z-shaped, and its outer end is slidably sleeved on the outer end of the adjacent unloading bolt 11 and abuts against the second spring 12. An adjusting groove 72 is provided at the upper end of the column 71. An adjusting stud 73 is sleeved inside the adjusting groove 72. The lower end of the adjusting stud 73 extends into the through groove 74 and abuts against the adjusting pressure plate 76. When the adjusting assembly 7 is in use, a tool can be inserted through the adjusting groove 72 to rotate the adjusting stud 73. Since the adjusting pressure plate 76 is elastically supported by the second spring 12 and guided by the connecting columns 75, its ejection length changes when the adjusting stud 73 is rotated, thereby changing the height of the adjusting pressure plate 76, and thus compressing the second spring 12 to different states to obtain different elastic effects, which can meet different usage needs and is highly flexible in use.

[0030] In this embodiment, guide posts 9 are fixedly connected to the upper end face of the lower mold base 1 near the four corners, and guide sleeves 10 are fixedly sleeved on the inner side of the upper mold base 3 near the four corners. The guide posts 9 and guide sleeves 10 are slidably sleeved in a one-to-one correspondence. By setting the guide posts 9 and guide sleeves 10, the guide sleeves 10 can slide along the guide posts 9 when the upper mold base 3 moves up and down, thereby limiting the upper mold base 3, ensuring accurate positioning, and preventing deviations during the fit.

[0031] The lower end of the unloading bolt 11 slides through the upper template 4 and is fixedly connected to the unloading plate 6 by threads. The upper protruding part of the unloading bolt 11 abuts against the upper mold base 3. The unloading plate 6 is hung on the upper mold base 3 by the unloading bolt 11. Since the upper end of the unloading bolt 11 abuts against the upper mold base 3, when the mold is pressed and the unloading plate 6 is subjected to force and moves upward, the unloading bolt 11 will extend upward out of the upper mold base 3 and will not interfere with the movement of the unloading plate 6.

[0032] Example 2

[0033] Please see Figure 4 As shown, based on Embodiment 1, an air outlet component 8 is provided at the lower end of the column 71. The air outlet component 8 can blow airflow onto the spring 12 when the upper mold base 3 is pressed down.

[0034] Specifically, the venting assembly 8 includes a push rod 84 and a cavity 81 located inside the lower end of the column 71. The lower end of the cavity 81 has an opening. The push rod 84 is fixed to the lower mold base 1 and aligned with the lower opening of the cavity 81. Two vent holes 85 are located on the outer end of the column 71 facing the second spring 12, and these vent holes 85 communicate with the cavity 81. A piston 83 is slidably disposed inside the cavity 81, and a spring 82 abuts against the inner wall of the cavity 81. Through this arrangement, the air venting assembly 8 provides air venting for the upper mold. When seat 3 is pressed down, piston 83 will contact push rod 84, causing piston 83 to squeeze into cavity 81 and compress spring 1 82. As the space inside cavity 81 decreases, the air originally inside cavity 81 will be blown out through two air outlets 85. The air outlets 85 face spring 2 12, and the airflow can contact spring 2 12 in a targeted manner. Through rapid gas flow, spring 2 12 is cooled down, preventing spring 2 12 from losing its buffering performance due to excessive temperature, and thus improving its service life.

[0035] In addition, the elasticity of spring 82 and the air resistance during the movement of piston 83 can both play a buffering role, further improving the buffering effect. After the mold is separated, due to the elasticity of spring 82, piston 83 can be reset and can be used in conjunction with the mold action in a cycle. The air outlet component 8 works with the power when the mold is closed, without the need to set up an additional power source, which is convenient to use and low in cost.

[0036] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A stamping die with a buffer structure, comprising a lower die holder (1) and an upper die holder (3), characterized in that: The lower mold base (1) has a lower template (2) fixed on its upper end face. The upper mold base (3) is located above the lower mold base (1) and has an upper template (4) fixed on its lower end face. A punch (5) is fixed at the middle of the lower end face of the upper template (4). The lower end face of the upper template (4) is connected to the unloading plate (6) by the unloading bolt (11), and the outer end of the unloading bolt (11) is fitted with a spring (12). Adjustment components (7) are provided on both sides of the lower end face of the upper mold base (3). The adjustment assembly (7) includes a column (71) fixed to the upper mold base (3). A through groove (74) is provided in the middle of the column (71). An adjustment pressure plate (76) is slidably sleeved inside the through groove (74) through multiple connecting columns (75). The adjustment pressure plate (76) is Z-shaped, and its outer end is slidably sleeved on the outer end of the adjacent unloading bolt (11) and abuts against the second spring (12).

2. A stamping die with a buffer structure according to claim 1, characterized in that: The upper end of the column (71) is provided with an adjustment groove (72), and an adjustment stud (73) is sleeved inside the adjustment groove (72). The lower end of the adjustment stud (73) extends into the through groove (74) and abuts against the adjustment pressure plate (76).

3. A stamping die with a buffer structure according to claim 1, characterized in that: The lower end of the column (71) is provided with an air outlet component (8), which can blow airflow onto the spring (12) when the upper mold base (3) is pressed down.

4. A stamping die with a buffer structure according to claim 3, characterized in that: The air venting assembly (8) includes a push rod (84) and a cavity (81) opened inside the lower end of the column (71). The lower end of the cavity (81) has an opening. The push rod (84) is fixed to the lower mold base (1) and aligned with the lower opening of the cavity (81). The outer end of the column (71) has two air vents (85) on the side facing the second spring (12). The air vents (85) are connected to the cavity (81).

5. A stamping die with a buffer structure according to claim 4, characterized in that: A piston (83) is slidably disposed inside the cavity (81), and a spring (82) abuts against the inner wall of the cavity (81) between the piston (83) and the inner wall of the cavity (81).

6. A stamping die with a buffer structure according to claim 1, characterized in that: The upper end face of the lower mold base (1) is fixedly connected with guide posts (9) near the four corners, and the inner side of the upper mold base (3) is fixedly sleeved with guide sleeves (10) near the four corners. The guide posts (9) and guide sleeves (10) are slidably sleeved in a one-to-one correspondence.

7. A stamping die with a buffer structure according to claim 1, characterized in that: The lower end of the unloading bolt (11) slides through the upper template (4) and is fixedly connected to the unloading plate (6) by threads. The upper protruding part of the unloading bolt (11) abuts against the upper mold base (3).

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