Small mechanical part shape and position error detection device and detection method thereof

Abstract

The invention relates to mechanical part shape and position error detection equipment and particularly relates to a small mechanical part shape and position error detection device and a detection method thereof. The base of the detection device is equipped with a vibration disk which is connected to a material channel, and the material channel is supported by a material channel supporting rod installed at the top of the base and is corresponding to the feeding end of a conveying belt. Two sides of the conveying belt are equipped with limiting plates. A detection fixed frame is installed above the conveying belt and is internally equipped with a laser displacement sensor. The bottom of the detection fixed frame is equipped with an electromagnet, and a photoelectric switch corresponding to the electromagnet is arranged on the conveying belt. The material out end of the conveying belt is provided with a cylinder block, and the electromagnet, the conveying belt, the laser displacement sensor, the photoelectric switch and the cylinder block are connected with a control system. According to the small mechanical part shape and position error detection device and the detection method, the online detection of the multiple shape and position errors of a small regular part can be achieved, the manual intervention is not needed in the detection process, unqualified parts can be eliminated automatically, the automatic detection is realized, and the detection efficiency and accuracy are improved.

Description

technical field [0001] The invention relates to a shape and position error detection device for mechanical parts, in particular to a shape and position error detection device and detection method for small mechanical parts. Background technique [0002] The shape and position errors of mechanical parts include shape errors such as flatness and straightness, and position errors such as parallelism and perpendicularity. The detection methods of shape and position errors of general parts are divided into two categories: contact detection and non-contact detection. The traditional methods of contact detection methods mainly include: plug gauge ruler measurement, meter measurement method, liquid level method; common non-contact measurement methods include beam plane method, plane interferometer, spirit level, laser interferometer, white light interferometer, etc. [0003] The detection of the convex surface by the plug gauge ruler is to place the workpiece to be measured on the ...

AI Technical Summary

Problems solved by technology

However, the detection equipment can only detect flatness, and it is still difficult to detect other shape errors and position errors

In addition, the horizontal workbench where the sample to be tested needs to be moved during the measurement process. If there is movement, vibration cannot be avoided, and vibration will definitely affect the final accuracy of the measurement results.

[0008] Through the comparison and analysis of the above various detection methods, the problem of the traditional detection method of contact detection is that it cannot detect all the shape and position errors in one device, which is inefficient and the detection accuracy is not high; The traditional detection method not only cannot realize online detection, but also has high environmental requirements and expensive detection equipment.

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