3D visual scanning detection device and working method thereof

Abstract

The invention provides a working method of a 3D visual scanning detection device. The 3D visual scanning detection device comprises a detection table, a projection light source is arranged below the detection table, a projection screen parallel to a transparent platform is erected right above the detection table, and at least one group of cameras is erected above the projection screen; a multi-axis motion platform is arranged on the detection table, and a probe module is fixed at the moving end of the multi-axis motion platform; the probe module is provided with a structured light module, and the structured light module can emit laser beams in the circumferential direction and project the laser beams to the projection screen; and the probe module comprises a fixed part which is fixed relative to the multi-axis motion platform and a movable part which moves relative to the multi-axis fixed platform, and the movable part is provided with a measuring ball which is in contact with a measured object. The detection device does not depend on a multi-axis motion platform and the precision of the probe, the manufacturing precision requirement of the whole machine can be reduced by increasing the height of the projection screen, the cost is greatly reduced, the trigger signal delay of the probe does not influence the measurement result, and the stability is high.

Description

technical field [0001] The invention relates to a working method of a 3D visual scanning detection device. Background technique [0002] At present, there are many kinds of automatic detection methods for parts, but each detection method has many limitations, so that the detection of a part requires multiple detection processes, which can only be completed by using different detection instruments, as follows: [0003] The detection efficiency of monocular vision and binocular vision is very high, but the material and surface features of the parts themselves (whether smooth, curved, reflective, surface texture, etc.) have a great influence on the accuracy of the detection results. Parts with different materials and surface features It is necessary to use different types of light sources with different structures, and the angles and directions of lighting are also different. The general performance of the light source is very poor; so far, only the size parameters of the parts...

AI Technical Summary

Problems solved by technology

[0008] The present invention improves the above problems, that is, the technical problem to be solved by the present invention is that there are various automatic detection methods for parts at present, but each detection method has many limitations, so that multiple detection procedures are required to detect one part. It can only be completed by using different testing instruments. In addition, the core components of the high-precision three-coordinate measuring machine rely on imports, and the price is high

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