Special-shaped positioning tool located on automobile covering part stamping die
By designing the multiple raised contact surfaces of the special-shaped positioning tool to match the special-shaped hole positioning position of the automobile cover, the problems of high positioning costs and damage to the product edges in the prior art are solved, and a high-precision and low-cost positioning effect is achieved.
Patent Information
- Application Number
- CN202420799578.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing automotive cover stamping dies require multiple circular hole positions when positioning, resulting in additional manufacturing hole positions for products with fewer hole positions, increasing process costs and affecting product edges.
Design a special-shaped positioning tool, the side walls of the mounting base form a continuous positioning surface, with multiple outwardly extended protruding contact surfaces on the positioning surface, including smooth surface segments and arc-shaped chamfers for use with the cover The special-shaped hole position matches to achieve accurate positioning.
By forming multiple positioning points through multiple raised contact surfaces, precise positioning of the automotive cover is achieved, reducing process costs and avoiding the need to manufacture additional holes on the cover.
Smart Images
Figure CN222307122U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile stamping dies, in particular to a special-shaped positioning tool located on a stamping die for automobile covering parts. Background Art
[0002] Automotive panel stamping dies are vital tools in automotive manufacturing. These dies are key equipment used to process sheet metal into exterior panels such as car bodies, doors, hoods, etc. The manufacture of these parts requires high precision and complex forming processes, and stamping dies are the core to achieve this goal.
[0003] For some automotive panels, especially door handles, the most commonly used product positioning device in the industry is to use at least two circular positioning devices, also known as positioning pins, on the stamping die for positioning. This solution has certain requirements for the shape of the product, and at least two large circular or oblong holes are required on the panel before it can be used.
[0004] For some outer covers, the product has fewer holes and no larger holes suitable for positioning, so the above method is no longer applicable. The usual practice is to make two holes in the waste area around the cover for positioning, and then cut them off. On the one hand, the additional process content increases the cost, and on the other hand, the waste removed in sections has a certain impact on the product edge. Utility Model Content
[0005] The utility model aims to provide a special-shaped positioning tool located on a stamping die of an automobile cover so as to solve the problems existing in the above-mentioned prior art.
[0006] Provided is a special-shaped positioning tool located on a stamping die for an automobile cover, comprising:
[0007] The mounting base has a side wall that forms a continuous positioning surface in the circumferential direction, and the positioning surface has at least three raised contact surfaces formed by outward expansion.
[0008] Furthermore, there are at least four raised contact surfaces formed by outward expansion on the positioning surface.
[0009] Furthermore, there are four raised contact surfaces on the positioning surface formed by outward expansion.
[0010] Furthermore, the raised contact surface includes a smooth surface segment and arc-shaped chamfers at both ends of the smooth surface segment.
[0011] Furthermore, the length dimension of the smooth surface segment in the circumferential direction of the positioning surface is ≥3 mm.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] Multiple convex contact surfaces on the special-shaped positioning tool form multiple positioning points, so as to achieve the purpose of accurately positioning the automobile cover. The utility model is suitable for automobile covers with large-diameter special-shaped holes. Multiple convex contact surfaces can be selected and adapted according to the specific shape of the special-shaped holes of the cover, and the positioning accuracy is high. This positioning method does not require additional hole positions to be made on the waste area of the cover, which reduces the process cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0015] Figure 1 A working schematic diagram of the special-shaped positioning tool provided by the utility model;
[0016] Figure 2 This is an example of the outline of a large hole in an automobile cover;
[0017] Figure 3 It is a cross-sectional view of the special-shaped positioning tool;
[0018] Figure 4 This is a partial enlarged view of the raised contact surface.
[0019] In the figure: 1, mounting base; 11, lifting hole; 2, positioning surface; 3, raised contact surface; 31, smooth surface segment; 32, arc chamfer. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1 and Figure 3As shown, in an embodiment of the utility model, a special-shaped positioning tool located on a stamping die for an automobile cover comprises a mounting base 1, the side wall of the mounting base 1 forms a continuous positioning surface 2 in the circumferential direction, and there are at least three raised contact surfaces 3 formed by outward expansion on the positioning surface 2. After the mounting base 1 is adjusted on the stamping die, it is fixed to the stamping die by bolts. During positioning, a plurality of raised contact surfaces 3 contact and limit the inner side wall of the large hole of the cover, and by controlling the position of the plurality of raised contact surfaces 3, the cover is always kept stationary with the mounting base 1, thereby achieving a positioning effect.
[0023] See also Figure 1 and Figure 2 As shown, the utility model optimizes the position of the positioning hole, and uses a special-shaped locator to locate the circumference of the large hole on the cover such as the door handle. The large hole on the cover is usually an irregular closed curve. In this case, by simplifying part of the arc curve into a simple straight line, only the full arc edge of the approximate straight line segment is located. On the one hand, it can effectively avoid the processing and debugging difficulties caused by the irregular shape of the circumference; on the other hand, it can effectively reduce the debris and burrs caused by multiple trimming of the product edge line.
[0024] In one embodiment, there are at least four raised contact surfaces 3 formed by outward expansion on the positioning surface 2. Since the large hole of the cover is irregular in shape and has many smooth surfaces, the three-point support between the positioning surface 2 and the cover may slip. Therefore, in order to improve the support and positioning effect, at least four-point support is provided between the positioning surface 2 and the cover, that is, there should be at least four raised contact surfaces 3 to achieve complete positioning of the cover.
[0025] Furthermore, there are preferably four raised contact surfaces 3, which can reduce the difficulty of machining the positioning tool while achieving the positioning function.
[0026] See also Figure 1 and Figure 4 As shown, the raised contact surface 3 includes a smooth surface segment 31 and arc-shaped chamfers 32 at both ends of the smooth surface segment 31. The smooth surface segment 31 is in direct contact with the inner wall of the cover, reducing the pressure between the positioning tool and the cover, and preventing each positioning point from causing deformation and other damage to the cover. The arc-shaped chamfers 32 play a transition role, preventing the smooth surface segment 31 from forming sharp points at both ends to cause damage to the cover.
[0027] The length dimension of the smooth surface segment 31 in the circumferential direction of the positioning surface 2 is ≥3 mm, so as to ensure that a relatively low pressure state is generated when a force is generated between the smooth surface segment 31 and the cover.
[0028] See also Figure 3 As shown, a lifting hole 11 is penetrated through the mounting base 1, and the cover can be lifted by a positioning tool to smoothly complete other processes.
[0029] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.
Claims
1. A special-shaped positioning tool located on a stamping die for an automobile cover, characterized in that: It comprises a mounting base (1), the side wall of which forms a continuous positioning surface (2) in the circumferential direction, and the positioning surface (2) has at least three raised contact surfaces (3) formed by outward expansion.
2. The special-shaped positioning tool on the stamping die of the automobile cover according to claim 1, characterized in that: There are at least four protruding contact surfaces (3) formed by outward expansion on the positioning surface (2).
3. The special-shaped positioning tool on the stamping die of the automobile cover according to claim 2, characterized in that: There are four raised contact surfaces (3) formed by outward expansion on the positioning surface (2).
4. The special-shaped positioning tool on the stamping die of the automobile cover according to claim 1, characterized in that: The raised contact surface (3) comprises a smooth surface segment (31) and arc-shaped chamfers (32) located at two ends of the smooth surface segment (31).
5. The special-shaped positioning tool on the stamping die of the automobile cover according to claim 4, characterized in that: The length dimension of the smooth surface segment (31) in the circumferential direction of the positioning surface (2) is ≥3 mm.
6. The special-shaped positioning tool on the stamping die of the automobile cover according to claim 1, characterized in that: The installation base (1) is penetrated by a lifting hole (11).