Smaller modulus gear drive error measuring method

Abstract

The invention relates to a small-modulus gear transmission error measurement method, which belongs to the technical fields of precision testing technology, instruments, and mechanical transmission. Specifically, firstly connect the measured gear, the driver, the first angle measuring encoder, the first coupling and the first motor in sequence, and then connect the measuring gear, the flexible coupling, the second angle measuring encoder, the second coupling The shaft and the second motor are connected in sequence. The measured gear and the measuring gear are meshed on one side and are driven by two motors respectively. The angular displacement φ2 of the measuring gear relative to the second angle measuring encoder, the angular displacement φ1 of the measuring gear shaft system and the angular displacement φ' of the measured gear shaft system are detected, and the transmission error of the small modulus gear is obtained through calculation. The invention avoids the disadvantage that the small modulus gear drives the large-mass shaft system and the circular grating to rotate, improves the measurement accuracy and reliability of the measurement system, and solves the worldwide problem of single-mesh measurement of the small modulus gear.

Description

technical field [0001] The invention relates to a small modulus gear transmission error measurement method, which belongs to the technical fields of precision testing technology, instruments and mechanical transmission. Background technique [0002] Small modulus gears usually refer to gears with a modulus from 0.1mm to 1mm. Small modulus gears (especially plastic gears, modulus 0.1-0.5mm) are widely used in the IT industry, electronic machinery, aerospace instruments, and precision instruments. With the rapid development of science and technology, higher requirements are put forward for the manufacturing precision and transmission quality of small modulus gears. Small modulus gears lack reliable and effective measurement techniques and means. Therefore, the precise and fast measurement of small modulus gears is a key technical problem to be solved urgently at home and abroad. [0003] The single-sided meshing measurement method occupies a special position in many gear mea...

AI Technical Summary

Problems solved by technology

However, in the case of measuring tiny modulus gears, because the quality of the first angle measuring encoder 3 and the rotary shaft is much larger than that of the measured tiny modulus gears, the micro angular displacement of the small modulus gears The error is difficult and cannot be directly detected by a precision angular displacement sensor3 with a much larger mass

In other words, the measurement accuracy and measurement sensitivity of this "direct measurement" system are not ideal for measuring tiny modulus gears and cannot be used

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