Improved universal punch for punching curved-surface metal plate
By connecting a powerful magnet to the stamping base, a simplified structure and large-angle swing of the universal punch for stamping curved metal sheets are achieved, solving the problems of complex structure and insufficient angle in the existing technology, and realizing high-precision curved surface processing.
Patent Information
- Application Number
- CN202422951220.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing universal punches for stamping curved metal sheets have complex structures and small swing angles, which cannot meet the requirements of high-precision curved surface processing.
It uses a powerful magnet to connect with the stamping base. The bottom of the punch has a spherical structure that matches the concave structure of the magnet, which enables a swingable connection with a larger swing angle.
The structure is simplified and the swing angle is increased to meet the requirements of high-precision curved surface processing.
Smart Images

Figure CN223655862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an improved universal punch for stamping curved metal sheets, belonging to the technical field of stamping equipment. Background Technology
[0002] Curved metal sheet stamping dies are used to stamp aluminum, iron, and stainless steel sheets into single-curved and double-curved surfaces. The varying heights of the stamping points on the machine for different curvatures cause these points to not completely merge during stamping, resulting in a suboptimal finished product. Existing stamping universal punches not only have numerous parts and a complex connection between the punch and base, but also offer limited oscillation angles, making them unsuitable for high-precision curved surface processing.
[0003] Therefore, the research objective of this utility model is to provide a universal punch for stamping curved metal sheets with a simpler structure and a larger swing angle. Utility Model Content
[0004] To address the shortcomings of the aforementioned technologies, this utility model provides an improved universal punch for stamping curved metal sheets. The punch of this structure is connected to the stamping base by a powerful magnet, resulting in a simpler structure. Furthermore, the absence of a locking bar restricts the swing angle of the punch, allowing for a larger swing angle and meeting the requirements for more precise curved surface processing.
[0005] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows:
[0006] An improved universal punch for stamping curved metal sheets is characterized by comprising a stamping base, a powerful magnet, and a punch. The stamping base has a recessed mounting groove at its top, and the powerful magnet is embedded and fixedly disposed in the mounting groove. The top of the powerful magnet is configured as a circular concave structure, and the bottom of the punch is configured as a protruding spherical structure. The spherical structure of the punch matches the concave structure of the powerful magnet. The punch is oscillatingly connected to the top of the powerful magnet through the cooperation of the spherical structure and the concave structure.
[0007] Furthermore, a concave arc-shaped structure is provided between the top edge of the outer periphery of the stamping base and the top edge of the mounting groove, and the inner side of the arc-shaped structure is connected to the outer side of the concave structure at the top edge of the powerful magnet.
[0008] The advantages of this invention are: the punch of this structure is connected to the stamping base by a strong magnet, making the structure simpler; and there is no limitation on the swing angle of the punch caused by the locking bar, which allows the swing angle of the punch to be larger and can meet the needs of more precise curved surface processing. Attached Figure Description
[0009] Figure 1This is a schematic diagram of the structure of this utility model.
[0010] Figure 2 This is an exploded view of the structure of this utility model.
[0011] Figure 3 This is a structural schematic diagram of the stamping base of this utility model.
[0012] The components include: stamping base 10, strong magnet 20, punch 30, mounting groove 101, and arc surface structure 102. Detailed Implementation
[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-3 Further analysis of this utility model is then conducted.
[0014] like Figure 1-3 As shown, an improved universal punch for stamping curved metal sheets is characterized by comprising a stamping base 10, a powerful magnet 20, and a punch 30. The top of the stamping base 10 is recessed with a mounting groove 101. The powerful magnet 20 is embedded and fixedly disposed in the mounting groove 101 and magnetically attached to the stamping base 10. Its top end is a circular concave structure. The bottom end of the punch 30 is a protruding spherical structure. The spherical structure of the punch 30 matches the concave structure of the powerful magnet 20. The punch 30 is oscillatingly connected to the top end of the powerful magnet 20 through the cooperation of the spherical structure and the concave structure.
[0015] In this embodiment, preferably, a concave arc surface structure 102 is provided between the top of the outer periphery of the stamping base 10 and the top of the mounting groove 101. The inner side of the arc surface structure 102 is connected to the outer side of the concave structure at the top of the powerful magnet 20. In this way, the top of the stamping base 10 and the top of the powerful magnet 20 form a more complete concave curved surface, so that the punch 30 can swing more smoothly.
[0016] The punch 30 of this invention is connected to the stamping base 10 by a strong magnet 20, which makes the structure simpler; and there is no restriction on the swing angle of the punch 30 caused by the locking bar, so that the swing angle of the punch 30 is larger and can meet the needs of more precise curved surface processing.
[0017] The technical solutions provided in this application have been described in detail above. The embodiments used in this document illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. An improved universal punch for stamping curved metal sheets, characterized in that: The device includes a stamping base, a powerful magnet, and a punch. The top of the stamping base has a recessed mounting groove, and the powerful magnet is embedded and fixed in the mounting groove. The top of the powerful magnet is a circular concave structure. The bottom of the punch is a protruding spherical structure. The spherical structure of the punch matches the concave structure of the powerful magnet. The punch is oscillatingly connected to the top of the powerful magnet through the cooperation of the spherical structure and the concave structure.
2. The improved universal punch for stamping curved metal sheets according to claim 1, characterized in that: A concave arc-shaped structure is provided between the top of the outer periphery of the stamping base and the top of the mounting groove, and the inner side of the arc-shaped structure is connected to the outer side of the concave structure at the top of the powerful magnet.