Method and device for dynamically detecting comprehensive error of mechanical transmission chain

A mechanical transmission and comprehensive error technology, which is applied in the testing of mechanical components, measuring devices, and testing of machine/structural components, can solve the problems of complex transmission mechanism of precision transmission chains and the inability to comprehensively evaluate the transmission performance of transmission chains, etc., to achieve The effect of easy calibration, economical price and simple operation
CN110398359APending Publication Date: 2019-11-01SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2019-11-01

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Abstract

The invention discloses a method for dynamically detecting the comprehensive error of a mechanical transmission chain. The method comprises the steps of: (1), controlling the workshop temperature to the constant temperature, and running a servo shaft system to feed for a period in a reciprocating manner in an effective stroke, so that the mechanical transmission chain reaches a thermal stable state; (2), controlling a servo shaft to feed for one time in a reciprocating manner in an effective stroke, simultaneously, measuring the motor rotation angle theta and the actual position of a workbenchby utilizing a built-in round coder, a linear grating ruler and a data acquisition system, and converting the motor rotation angle theta into the nominal position of the workbench; (3), calculating the reverse gap of a servo shaft transmission chain; (4), calculating the lead error of the transmission chain while positive feeding and the evaluation parameter of the lead error of the transmissionchain while positive feeding; and (5), calculating the evaluation parameter of the reverse lead error. A comprehensive, convenient and precise transmission chain comprehensive error detection method is established in the invention.
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Description

technical field

[0001] The invention relates to the field of precision detection and monitoring of a mechanical transmission system, in particular to a dynamic detection method and device for a comprehensive error of a mechanical transmission chain. Background technique

[0002] Servo motion control systems are widely used in various electromechanical equipment, such as photolithography machines, medical robots, CNC machine tools, all-electric injection molding machines, etc., and are the key basic components for realizing industrial automation, precision and intelligence. In order to obtain the desired motion trajectory and mechanical characteristics, the mechanical transmission chain is an indispensable part of the servo system. The transmission error of the transmission chain will affect the motion control accuracy and stability of the servo system. In the semi-closed-loop servo system, the transmission error has a decisive influence on the positioning accuracy of the sy...

Claims

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