Synchronous acquisition method for gear pattern measuring data

Abstract

The invention discloses a synchronous acquisition method for gear pattern measuring data, and relates to the technical field of high precision detection. The method solves the problems that synchronous acquisition is difficult to realize and a tooth channeling error exists due to the fact that a laser displacement sensor and a photoelectric encoder have different sampling frequencies when a gear is measured by the existing method. The method comprises the steps that a driver drives a servo motor to drive a rotating platform to make rotating motion; a photoelectric encoder sends an angular displacement pulse to the driver; the driver generates a corresponding trigger pulse and sends the trigger pulse to a laser displacement sensor; the laser displacement sensor measures a gear pattern according to the received trigger pulse, and sends measured linear displacement to a data processing system; the data processing system converts corresponding angular displacement by a linear displacement data storage position according to a linear relationship between the linear displacement data storage position and the angular displacement; and synchronous acquisition of the angular displacement and the linear displacement is achieved. The method improves the synchronous acquisition precision of the linear displacement and the angular displacement, reduces a random tooth channeling error, and is simple to operate and reliable.

Description

technical field [0001] The invention relates to the technical field of high-precision detection, in particular to a method for synchronously collecting centerline displacement and angular displacement in a gear shape measurement system, aiming at improving the precision of gear shape measurement. Background technique [0002] Gear shape measurement is of great significance in the field of precision manufacturing. Traditional contact measurement is prone to damage the gear surface to varying degrees. With the increasing maturity of laser measurement technology, it is possible to use laser continuous scanning technology to achieve fast and high-precision measurement of gear shape. The existing patent literature, whose publication number is 202149755U, is a patent titled gear parameter laser detection device. The working principle is to use a laser displacement sensor to measure the linear displacement of the gear surface relative to the measurement origin, and the angular disp...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that when using the existing method to measure gears, because the laser displacement sensor and the photoelectric encoder have different sampling frequencies, it is difficult to realize synchronous acquisition, and then there is a problem of tooth shifting error, and provides a synchronous method for measuring gear shape data. collection method

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