Method and device for testing automobile plastic part

Abstract

The invention relates to a method and a device for testing an automobile plastic part. The device comprises a base plate, a positioning base, a profile normalization module and a detection module, and the positioning base, the profile normalization module and the detection module are in sequential connection and arranged on the base plate. The profile normalization module and the plastic part are uniform in shape, the profile normalization module hermetically surrounds the positioning base, and the detection module is positioned on the outer side of the profile normalization module. The method includes: embedding the plastic part into the positioning base, judging whether the plastic part is completely embedded or not, and if not, determining that the plastic part is unqualified; if yes, adopting the detection module and a filler gauge to detect dimensions of the plastic part, judging whether the dimensions of the plastic part are qualified or not, and if not, determining that the plastic part is unqualified; if yes, detecting a plane warping degree of the plastic part by the aid of a flush go / no-go gauge, judging whether the plane warping degree of the plastic part is qualified or not, if yes, determining that the plastic part passes testing, and if not, determining that the plastic part is unqualified. Compared with the prior art, the method and the device for testing the automobile plastic part have advantages of testing accuracy, high operation efficiency, cost saving, high practicality and the like.

Description

technical field [0001] The invention relates to the field of auto parts inspection, in particular to an inspection device and method for plastic parts used in automobiles. Background technique [0002] Automobile injection molding parts have different shapes, but the assembly accuracy is very high. During the production process, the production of injection molding parts must be monitored in all directions, and the size of the shape and position of the injection molding products must be inspected regularly and quantitatively. There will be adverse consequences. [0003] Taking the "front windshield defrosting grille" auto parts produced by injection molding as an example, because of its particularity, during the sampling inspection of the production process control, it is necessary to rely solely on ordinary manual labor with the aid of a three-dimensional coordinate instrument to detect the shape, position and size. It takes a long time to obtain satisfactory results, and a...

AI Technical Summary

Problems solved by technology

Although this method is simple, it can only roughly detect the contour degree. For the "front windshield defrosting grid" with a complex shape as mentioned in the above paragraph, this contour detection method can only guarantee its approximate shape and requirements. The same, but it is impossible to carry out specific detection of each grid shape, the detection accuracy is not accurate enough, and it is also impossible to realize the plane warpage detection of plastic parts

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