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Robot rolling hemming molding feature die covering a plurality of hemming methods

A technology of rolling and wrapping and forming features, which is applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., to achieve the effect of simple mold structure

Active Publication Date: 2009-09-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For automotive panels with various geometric shapes, its forming characteristics cover various types of hemming, including various types of hemming features in the form of straight lines or curves, so simple curves are used to simulate rolling hemming. For the surface quality characteristics of automotive panels There are relatively large limitations in the application and research of

Method used

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  • Robot rolling hemming molding feature die covering a plurality of hemming methods
  • Robot rolling hemming molding feature die covering a plurality of hemming methods
  • Robot rolling hemming molding feature die covering a plurality of hemming methods

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Embodiment Construction

[0021] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0022] Such as figure 1 As shown, this embodiment relates to a robot rolling hemming forming characteristic mold covering various hemming methods, including: a clamping device 1 , a pressing plate 2 , a lower mold 3 , and a base 4 . The outer panel and the inner panel to be hemmed are glued together and placed on the lower mold 3 for hemming, the lower mold 3 is placed on the base 4, the base 4 is connected to the ground through anchor bolts, and the pressing plate 2 is clamped by the clamping device 1. The sheet metal is pressed on the lower die 3 . The rolling hem...

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Abstract

The invention relates to a robot rolling hemming molding feature die covering a plurality of hemming methods, belonging to the technical field of plastic forming and comprising a lower die, a base, a pressure plate and a clamping device. The upper surface of the lower die has a structure surface the same as the lower surface of the pressure plate, and the structural surface comprises a plane and a surface which are tangential, the external edge of the surface has all together three hemming lines, wherein, surface curves are opposite to each other, a surface straight line is connected with two surface curves; two hemming lines by the tangential connection of the plane and the surface curves are a long straight edge and a middle straight edge, the other hemming line opposite to the surface straight line and vertically connected with the long straight edge is a short straight edge, and the hemming feature of the transition part between the long straight edge and the short straight edge simultaneously possess the hemming shapes of outward convex and inward concave plane curves, etc. the invention basically covers the main deformation characteristics of hemming molding of most covering parts, can obtain more hemming properties of deformation sheet under deformation pattern and can satisfy the requirement of auto sheet rolling hemming performance studies.

Description

technical field [0001] The invention relates to a mold in the technical field of plastic forming, in particular to a characteristic mold for robot rolling hemming forming covering various hemming methods. Background technique [0002] Hemming is a common processing method for connecting the outer panel and inner panel of an automobile. It refers to a forming method that wraps the inner panel after gradually bending the outer panel that has been flanged. It is the last forming process of stamping parts. The flexibility from the stamping forming of body parts to the assembly process has become the development trend of automobile manufacturing. The robot rolling hemming technology is the latest technology to realize the flexibility of the hemming of the four-door and two-lid equal parts assembly of the car body. Compared with the traditional mold hemming process, greatly reducing the time and cost of mold development, and greatly improving the flexibility of the production line...

Claims

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Application Information

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IPC IPC(8): B21D37/10
Inventor 李淑慧赵亦希席升印胡星伍俊棠
Owner SHANGHAI JIAO TONG UNIV
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