Mould

A mold and lower mold technology, which is applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of unfavorable surface quality of outer panels, surface quality problems of outer panels, and high processing accuracy requirements, so as to shorten the debugging cycle and reduce the The effect of repair rate and low production cost

Inactive Publication Date: 2019-06-28
BMW BRILLIANCE AUTOMOTIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the grinding and matching of the pressing plate is unqualified, it will lead to uneven pressing force on the workpiece, which will lead to defects on the product surface, which will especially have an adverse effect on the surface quality of the outer plate
In addition, due to the use of a rigid pressing plate, the debris generated during the production process and the dust from the external environment are likely to cause indentations on the product surface, and in severe cases, the product will be scrapped
It can be seen that the current process has the disadvantages of high processing precision requirements, large research and matching workload, and easy to produce surface quality problems of the outer plate
In addition, the research and matching of workpieces usually depends on the experience of workers, and lack of experience can easily lead to waste products

Method used

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  • Mould

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Embodiment Construction

[0026] The invention will be described below with reference to the accompanying drawings, which show one embodiment of the invention. However, it should be understood that the present invention can be presented in many different ways, and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present invention more complete and to the Those skilled in the art fully explain the protection scope of the present invention. It should also be understood that the embodiments of the invention herein can be combined in various ways to provide yet more additional embodiments.

[0027] It should be understood that in the drawings, the dimensions of some of the features may have been distorted for clarity.

[0028] It should be understood that the terminology used in the specification is for the purpose of describing particular embodiments only, and is not intended to limit the invention. Unless otherwise de...

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Abstract

The invention relates to a mould. The mould comprises a movable upper mould and a still-keeping lower mould, wherein a pressing plate(4) used for pressing workpiece is arranged on the upper mould, anda forming mould(11) used for supporting the workpiece is arranged on the lower mould. The mould is characterized in that the pressing plate(4), at least the pressing area for pressing the workpiece located on the forming mould, is provided with a buffer, wherein the buffer is made of polyurethane.

Description

technical field [0001] The invention relates to a mold, especially a mold for flanging. The mold according to the invention is used in particular for the stamping of exterior panels of motor vehicles. Background technique [0002] In the field of cold stamping, the flanging process is a relatively common process, which can be applied to almost all stamping products. Flange dies are usually used for flanging in cold stamping. [0003] Known flanging mold comprises patrix and counterdie usually, and counterdie comprises molding die, and binder plate is set on this patrix, and workpiece is arranged on molding mold, is benchmark with forming mold, is opposite with rigid binder plate. The workpiece is punched and flanged. [0004] Such a mold is already known from CN202052866U. In prior art flanging dies, the metal binder is in direct contact with the workpiece. Since the binder itself may be uneven, defects in the binder will be reflected in the finished product. [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D19/00
CPCB21D19/10B21D22/06B21D22/10B21D24/16
Inventor 郑宇锋魏守新教富川
Owner BMW BRILLIANCE AUTOMOTIVE
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