Design principles of automobile body parts inspection tools

Author：Web　Source：Web　Date：2018-07-30 11:14:07　Sentiment：90

The body of an automobile consists of many parts, including welding parts and stamping parts. The body parts are characterized by many curved surfaces, complex structures, irregular shapes, large volume and heavy weight. Because of the automobile parts, the stamping and welding parts account for a very large proportion. It plays a decisive role in automobile quality and safety, so it requires high precision and quality. Therefore, the inspection tools can quickly measure the size of the body parts, find out the non-conformance terms of the body parts timely, quickly analyze the causes of the problems according to the measurement results, and then formulate targeted corrective measures. Therefore, the inspection tools have the advantages of convenient operation, easy modification, no damage to parts, and suitable for quick and large quantity inspection of parts.

Automobile body parts inspection design principles

Before making a good inspection tool, a good inspection plan should be made, and a good inspection tool should have the following characteristics:

(1) the completeness of measurement elements shall be satisfied. After receiving the development task of the inspection tools, the designer should fully understand the positioning and testing requirements on the GD&T drawings, understand the geometric dimensions and tolerance drawings, etc. There is no special specification for the designed inspection tools, which shall include all testing elements required by the drawings.

(2) sufficient measurement accuracy shall be provided. The inspection tool is not a disposable tool, but a long-term measuring tool. Therefore, the designer should take into account the influence of the gravity, the use environment and deformation of the inspection tool, and ensure the precision and stability of the inspection tool from the perspective of structure design and material selection.

(3) sufficient measurement efficiency shall be provided. Man-machine engineering, the design of fixture, in principle request submit content must be consistent with the position of the body coordinate system, special circumstances can rotate 90 ° or 180 °, consider operators of geographical factors such as height and operating habits, choosing the appropriate fixture put the position and height of fixture, the purpose is to keep the ease of operation.

(4) it should be economic.

Commercialisation of shanxi, has a full set of fixture design, manufacturing, assembly and debugging, measuring the comprehensive strength, professional production of various kinds of automotive metal stamping and plastic fixture, fixture production of stamping test is: the door assembly fixture, side surround assembly fixture, engine cover assembly fixture, floor assembly fixture, side retaining plate fixture, etc.