Method for detecting gear tooth profile and spiral line by diaxon servocontrol

Abstract

The invention discloses a two-axis follow-up control method for detecting gear tooth profiles and helices. The method acquires relative displacement signals of a measured curve and a gauge head in real time through a displacement sensor, so as to control the motion of a driven shaft; meanwhile, a angular displacement sensor and a linear displacement sensor acquire the displacement signals of two axes respectively, and then the measured curve can be drawn; and the measured curve is compared with a theoretical curve in a computer, so as to obtain the deviation of the measured curve. In the measurement method, the displacement sensor follows the measured curve to move, so as to ensure that the deviation range of the detectable measured curve is no longer constrained by the range of the displacement sensor, and expand measurement range. The measurement method can detect various types of continuous curves on gears, including circular arc profiles, involutes, helices and the like, increasesthe species of detectable curves, and expands application fields. In the measurement method, the two axes do not need to simulate the precise theoretical curve, thereby leaving out not only base circle plates and other mechanical structures in a mechanical generation method but also motion control cards and other components in an electronic generation method, and simplifying circuit design.

Description

A Method for Detecting Gear Tooth Profile and Helix with Two-axis Follow-up Control technical field The invention relates to the technical field of measurement of transmission mechanical gears, in particular to a method for detecting gear tooth profile and helix by two-axis follow-up control. Background technique At present, the measurement methods of gear tooth profile and helix mainly include mechanical generation method, electronic generation method and coordinate method. The method of using the mechanical structure to reproduce the theoretical curve track on the instrument is called the mechanical generation method. Taking the measurement of gear tooth profile as an example, when a straight line and a circle are rolling without slipping, a point on the straight line is developed into an involute. A straight edge of the ruler is used to replace the straight line, and the circumference of the base disc with the radius of the base circle of the measured gear as the radi...

AI Technical Summary

Problems solved by technology

The control system required by this measurement method is relatively complex, and the accuracy is not easy to improve

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