Method for designing post-process die profile machining data by draw piece scanning result

A technology of processing data and drawing process, which is applied in the field of first-order trimming molds after drawing, and can solve problems such as inconsistent profiles, unstable positioning, and air cutting

Inactive Publication Date: 2014-09-10
CHINA FIRST AUTOMOBILE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The springback and twisting factors of the drawn part are ignored, which leads to inconsistent shape, unstable positioning and empty cutting when placed on the first-order trimming mold after the drawing process is basically qualified. A large number of modifications increase the manufacturing cost; prolong the manufacturing cycle of the mold

Method used

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  • Method for designing post-process die profile machining data by draw piece scanning result
  • Method for designing post-process die profile machining data by draw piece scanning result
  • Method for designing post-process die profile machining data by draw piece scanning result

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described: as figure 1 As shown in Fig. 1, the drawn parts pressed after the drawing die is qualified are scanned to generate point cloud data and imported into the processing data environment (aligned with the position of the die). The profile of the mold is consistent with the theoretical model of the product. After drawing, the drawn profile A of the product has a certain deviation from the profile of the mold, which is mainly caused by the springback of the product. Therefore, the scanned point cloud data is used as a theoretical basis to carry out reverse design transformation and extend the processing data surface of each component to ensure the fitting and matching of the mold and the workpiece surface.

[0019] 1. After the die debugging of the drawing process is basically qualified, the final process parts are obtained through die stamping, laser cutting and othe...

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Abstract

The invention relates to a method for designing post-process die profile machining data by a draw piece scanning result. The method is characterized by comprising the steps as follows: carrying out white light scanning (photographing) on draw pieces by non-contact type ATOS optical scanning equipment developed by a German GOM company, ending the scanning operation, and calculating the scanning result in a system of the ATOS optical scanning equipment to obtain triangular patch point cloud data; and debugging a drawing die until the drawing die is qualified, making a first trimming die, scanning the qualified draw pieces to generate point cloud data, reversing machining data profiles in Geomagic studio 11 software by utilizing the scanning point cloud data as the theory basis, and converting the machining data profiles of the first trimming die on the basis of the reversed profiles. According to the method, the qualified draw pieces are scanned to generate the point cloud data, the profiles of the draw pieces are reversed in the software by utilizing the scanning point cloud data as the theory basis, and the machining data profiles of the first trimming die after the drawing process are converted on the basis of the reversed profiles.

Description

technical field [0001] The invention relates to a method for designing surface processing data of a post-process mold by using the scanning result of a drawn part, which is suitable for the first-order trimming mold after the part is drawn. technical background [0002] In the past, in the early stage of design, the processing data and surface of the whole process were all designed according to the theoretical data. The springback and twisting factors of the drawn parts are ignored, which leads to inconsistent shape, unstable positioning and air cutting when placed on the first-order trimming mold after the drawing process is basically qualified. A large number of modifications increase the manufacturing cost and prolong the manufacturing cycle of the mold. Contents of the invention [0003] The purpose of the present invention is to provide a method of using the scanning results of the drawn parts to design the mold surface processing data in the subsequent process. It s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G05B19/4097B21D37/20B21D22/00
CPCY02P90/02
Inventor 王忠华王强张健张立彪陈超杨德军李龙一
Owner CHINA FIRST AUTOMOBILE
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