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Vehicle body positioning hole strength evaluation method and apparatus

A body positioning and positioning hole technology, which is applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problems that the body cannot be painted, the mold is changed, and the introduction of product processes is affected, so as to simplify the production process and reduce production. cost effect

Pending Publication Date: 2020-10-02
EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD
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Problems solved by technology

Once the actual vehicle verification fails, it is likely to cause mold changes, and even cause the body to fail to be painted, affecting the process introduction of the entire product

Method used

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  • Vehicle body positioning hole strength evaluation method and apparatus
  • Vehicle body positioning hole strength evaluation method and apparatus
  • Vehicle body positioning hole strength evaluation method and apparatus

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, the technical features in each embodiment or a single embodiment provided by the present invention can be combined arbitrarily with each other to form a feasible technical solution, but it must be based on the realization of those skilled in the art. When there is a contradiction or cannot be realized, it should be considered that ...

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Abstract

The embodiment of the invention provides a vehicle body positioning hole strength evaluation method and apparatus. The method comprises : according to the vehicle body overturning working condition, carrying out working condition constraint on a positioning hole; and in the critical gravity field load, obtaining a limit stress value of the working condition constraint positioning hole, and if theratio of the limit stress value to the material yield value of the positioning hole is smaller than a first preset threshold value, judging that the strength of the positioning hole is qualified. According to the vehicle body positioning hole strength evaluation method and apparatus provided by the embodiment of the invention, the strength of the vehicle body positioning hole can be obtained in the vehicle body design stage, data support is provided for vehicle body turnover electrophoresis, the production process is simplified, and the production cost is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of force analysis of a vehicle body, in particular to a method and equipment for evaluating the strength of a positioning hole of a vehicle body. Background technique [0002] At present, the car body has undergone multiple 360-degree flips during the pre-treatment and electrophoresis process, which has special requirements for the strength of the body positioning holes. If the manufacturing feasibility of this is not properly considered in the body design stage, the body cannot bear the turning force, which will cause deformation of the body sheet metal, and in severe cases, it will cause traffic problems such as slot drop. In the product design stage, evaluate whether the strength of the positioning hole of the body can meet the requirements of the turning process. At present, it is mainly based on the judgment of the engineer’s experience. Some companies also use the hard mold bo...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06F30/20G06F111/04G06F119/14
CPCG06F30/15G06F30/20G06F2111/04G06F2119/14
Inventor 张炳锋
Owner EVERGRANDE NEW ENERGY AUTOMOTIVE INVESTMENT HLDG GRP CO LTD
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