Machine-vision-based rapid detection device and detection method for medium and small module gears

Abstract

The invention provides a machine-vision-based rapid detection device and a detection method for medium and small module gears, and belongs to the technical field of high-precision detection. The device and the method are capable of rapidly detecting the errors of high-precision medium and small module gears in the non-contact manner. The device comprises a marble platform, and a vision measuring system is arranged on the marble platform. The vision measuring system comprises an industrial camera, a telecentric lens and a parallel light source. The industrial camera is connected with the telecentric lens. An object distance adjustment mechanism, a vertical column, a horizontal adjustment mechanism and a dual-tip gear positioning mechanism are also arranged on the marble platform. The vertical column is vertically arranged on the horizontal adjustment mechanism. The object distance adjustment mechanism is arranged on one side of the vertical column. The industrial camera is arranged on the object distance adjustment mechanism. The parallel light source is arranged on the horizontal adjustment mechanism and is opposite to the telecentric lens. The dual-tip gear positioning mechanism is arranged on one side of the parallel light source on the horizontal adjustment mechanism. The dual-tip gear positioning mechanism and the horizontal adjustment mechanism are in the same straight line and are aligned with each other. The output end of the industrial camera is connected with a computer.

Description

technical field [0001] The invention belongs to the technical field of high-precision detection, and in particular relates to a machine vision-based fast detection device and detection method for small and medium-sized modulus gears, which are used for fast and non-contact detection of errors of high-precision small and medium-sized modulus gears. Background technique [0002] In the industrial field, gears are widely used; gear accuracy directly affects the performance and life of the entire equipment, so gear detection methods and detection device technology are becoming more and more important. There are also many methods and devices for detecting gears in the prior art, for example: Chinese patent application number CN103292673A, titled "Detection method and device for tooth surface wear of large involute spur gears", this invention discloses a The tooth surface wear detection method and device of involute straight large gears can efficiently detect the wear degree of la...

AI Technical Summary

Problems solved by technology

There are also many methods and devices for detecting gears in the prior art, for example: Chinese patent application number CN103292673A, titled "Detection method and device for tooth surface wear of large involute spur gears", this invention discloses a The tooth surface wear detection method and device of involute straight large gears can efficiently detect the wear degree of large gears; the invention is applied to the detection of large gears and solves the problem that many precision gear detectors cannot detect large gears. It is suitable for the detection of large gears, not suitable for the detection of high-precision (GB 5) small and medium gears

[0003] Chinese patent application number: CN102914234A, named "gear detection device", evaluates the gear teeth and tooth pitch accuracy by the rotation synchronization of the gear to be tested and the standard gear, and converts this synchronization into a vertical coil edge. Axial displacement of the driven shaft; this patent detects gears with simple operation, but requires many standard gears with a higher level of precision, and is also not suitable for the detection of high-precision (GB 5) small and medium gears

[0007] To sum up, the existing methods and devices for detecting various aspects of gears have common deficiencies, that is, they all have deficiencies in the high-precision detection of gears.

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