Universal punch for punching curved-surface metal plate

Abstract

The utility model relates to a universal punch for punching curved-surface metal plates, which is characterized by comprising a punching base, a punch and a locking rod, a first circular groove is concavely arranged at the top end of the punching base, a first through hole communicated with the bottom end of the punching base is arranged at the bottom end of the first circular groove, and a second through hole communicated with the bottom end of the punching base is arranged at the bottom end of the first circular groove. A first circular groove is formed in the punching base, the punch is arranged in the first circular groove, a concave second circular groove and a concave third circular groove are formed in the top end and the bottom end of the punch respectively, the second circular groove is communicated with the third circular groove, a hemispheroid structure is integrally arranged at the top end of the locking rod, and the bottom end of the locking rod extends to the inner bottom end of the punching base. The bottom end of the locking rod is in threaded connection with a screw, a gasket is arranged between the screw and the locking rod, and a spring is arranged between the gasket and the bottom end of the first through hole. The punch is connected with the punching base through the locking rod, the punching curvature can reach 30 degrees at most, and the center of the punch is kept unchanged.

Description

Technical Field

[0001] The utility model relates to a universal punch for stamping curved metal plates, belonging to the technical field of stamping equipment. Background Art

[0002] The stamping module for curved metal plates is used to stamp aluminum plates, iron plates, and stainless steel plates into single-curved and double-curved surfaces. The stamping point heights arranged on the machine for different curvature graphics vary greatly, resulting in incomplete merging of the upper and lower stamping points during stamping, and the finished product not reaching the ideal state. The existing stamping module uses multiple springs to connect the stamping head and the stamping seat. During the stamping process, graphics with relatively large curvatures will cause the springs to fall off, resulting in high maintenance costs. At the same time, because the center point of the stamping head deviates during stamping, the stamping points on the outermost circle of the graphics fit first during the stamping process, while the stamping points inside the graphics cannot be merged, affecting the stamping quality.

[0003] Therefore, how to provide a universal punch for stamping curved metal plates that is easy to install and repair and whose punch center remains unchanged is the research purpose of the utility model. Summary of the Utility Model

[0004] Aiming at the above technical deficiencies, the utility model provides a universal punch for stamping curved metal plates. The punch of this structure is connected to the stamping base through a locking rod. The maximum stamping curvature can reach 30 degrees, and the punch center remains unchanged. Moreover, only one spring and one screw are used to connect the entire structure, reducing the installation parts and saving installation time and maintenance costs.

[0005] To solve the problems of the existing technology, the technical solution adopted by the utility model is:

[0006] A universal punch for stamping curved metal plates, characterized in that it includes a stamping base, a punch, and a locking rod. A first circular groove is recessed at the top end of the stamping base. A first through hole communicating with the bottom end of the stamping base is provided at the bottom end of the first circular groove. The punch is arranged in the first circular groove, and its bottom end matches the first circular groove. Concave second and third circular grooves are respectively provided at the top and bottom ends of the punch, and the second circular groove communicates with the third circular groove. A hemispherical structure matching the second circular groove is integrally provided at the top end of the locking rod. After its bottom end passes through the second circular groove, the third circular groove, the first circular groove, and the first through hole in sequence, it extends to the inner bottom end of the stamping base. A screw is threadedly connected to the bottom end of the locking rod. A gasket is provided between the screw and the locking rod. A spring is provided between the gasket and the bottom end of the first through hole. The spring is sleeved around the outer periphery of the locking rod.

[0007] Furthermore, the connection between the top end of the locking rod and the hemispherical structure is provided with a tapered structure that is narrower at the top and wider at the bottom.

[0008] Furthermore, an installation channel is provided between the bottom end of the first through hole and the inner bottom end of the stamping base, and the inner diameter of the installation channel is larger than the outer diameter of the gasket.

[0009] Furthermore, the bottom end of the hemispherical structure is in contact with the bottom end of the second circular groove, and the bottom end of the punch is in contact with the bottom end of the first circular groove.

[0010] The beneficial effects of the present utility model are as follows: 1. The punch of this structure is connected to the stamping base through a locking rod, and the stamping curvature can reach up to 30 degrees, and the center of the punch remains unchanged; 2. Only one spring and one screw are used to connect the entire structure, reducing the installation parts and saving installation time and maintenance costs. Description of the Drawings

[0011] Figure 1 is the structural schematic diagram of the present utility model.

[0012] Figure 2 is the structural sectional view of the present utility model.

[0013] Figure 3 is the structural exploded view of the present utility model.

[0014] Figure 4 is the structural sectional view of the stamping base of the present utility model.

[0015] Figure 5 is the structural sectional view of the locking rod of the present utility model.

[0016] Figure 6 is the structural sectional view of the punch of the present utility model.

[0017] Wherein: stamping base 10, punch 20, locking rod 30, first circular groove 101, first through hole 102, second circular groove 201, third circular groove 202, hemispherical structure 301, screw 40, gasket 50, spring 60, tapered structure 302, installation channel 103. Detailed Embodiment

[0018] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the following is further analyzed in conjunction with the attached Figure 1-6 drawings of the present utility model.

[0019] As Figure 1-6As shown in the figure, a universal punch for stamping curved metal sheets is characterized in that it includes a stamping base 10, a punch 20 and a locking rod 30. A first circular groove 101 is recessed at the top end of the stamping base 10. A first through hole 102 communicating with the bottom end of the stamping base 10 is provided at the bottom end of the first circular groove 101. The punch 20 is arranged in the first circular groove 101, and its bottom end matches the first circular groove 101. Concave second circular grooves 201 and third circular grooves 202 are respectively provided at the top and bottom ends of the punch 20. The second circular groove 201 communicates with the third circular groove 202. A hemispherical structure 301 matching the second circular groove 201 is integrally provided at the top end of the locking rod 30. After its bottom end sequentially passes through the second circular groove 201, the third circular groove 202, the first circular groove 101 and the first through hole 102, it extends to the inner bottom end of the stamping base 10. A screw 40 is threadedly connected to the bottom end of the locking rod 30. A gasket 50 is provided between the screw 40 and the locking rod 30. A spring 60 is provided between the gasket 50 and the bottom end of the first through hole 102. The spring 60 is sleeved around the outer periphery of the locking rod 30.

[0020] In this embodiment, preferably, the connection between the top end of the locking rod 30 and the hemispherical structure 301 is set as a tapered structure 302 that is narrower at the top and wider at the bottom.

[0021] In this embodiment, preferably, an installation channel 103 is provided between the bottom end of the first through hole 102 and the inner bottom end of the stamping base 30. The inner diameter of the installation channel 103 is larger than the outer diameter of the gasket 50.

[0022] In this embodiment, preferably, the bottom end of the hemispherical structure 301 contacts the bottom end of the second circular groove 201, and the bottom end of the punch 20 contacts the bottom end of the first circular groove 101.

[0023] When assembling the utility model: The locking rod 30 can directly pass through the first through hole 102 to achieve the effect of pressing the punch 20. The whole structure is fixed by placing a spring 60, a gasket 50 and a screw 40 inside the punch base 10. The spring 60 is compressed by the screw 40 and the gasket 50, so that the spring 60 has an elastic force to the two sides to fix, so as to achieve the effect that the punch 20 will not fall off under the condition of ensuring concentricity.

[0024] When using the utility model: Adjust the height of the required punch 20 according to the curvature of the graph on the machine. The machine has upper and lower stamping dies. Just adjust the height of the required punch 20. The punches 20 of the upper and lower dies are corresponding. When stamping, the punch 20 will automatically adjust the required angle to ensure the forming degree of the metal sheet.

[0025] The above has introduced the technical solution provided by this application in detail. In this article, embodiments are used to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation on this application.

Claims

1. A universal punch for stamping curved metal sheets, characterized in that: It includes a stamping base, a punch and a locking rod. A first circular groove is recessed at the top end of the stamping base. A first through hole communicating with the bottom end of the stamping base is provided at the bottom end of the first circular groove. The punch is arranged in the first circular groove, and its bottom end matches the first circular groove. Concave second and third circular grooves are respectively provided at the top and bottom ends of the punch. The second circular groove communicates with the third circular groove. A hemispherical structure matching the second circular groove is integrally provided at the top end of the locking rod. After its bottom end sequentially passes through the second circular groove, the third circular groove, the first circular groove and the first through hole, it extends to the inner bottom end of the stamping base. A screw is threadedly connected to the bottom end of the locking rod. A gasket is provided between the screw and the locking rod. A spring is provided between the gasket and the bottom end of the first through hole. The spring is sleeved around the outer periphery of the locking rod.

2. The universal punch for stamping curved metal sheets according to claim 1, characterized in that: The connection between the top end of the locking rod and the hemispherical structure is set as a tapered structure that is narrower at the top and wider at the bottom.

3. The universal punch for stamping curved metal sheets according to claim 1, characterized in that: An installation channel is provided between the bottom end of the first through hole and the inner bottom end of the stamping base. The inner diameter dimension of the installation channel is larger than the outer diameter dimension of the gasket.

4. The universal punch for stamping curved metal sheets according to claim 1, characterized in that: The bottom end of the hemispherical structure is in contact with the bottom end of the second circular groove, and the bottom end of the punch is in contact with the bottom end of the first circular groove.

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