Error calibration method of five-axis dispensing machine based on industrial camera

Abstract

The invention relates to the technical field of mechanical calibration of five-axis dispensing machines, and discloses an error calibration method of a five-axis dispensing machine based on an industrial camera, which comprises the following steps: S1, calibrating mechanical structure parameters of the five-axis dispensing machine, and regarding the mechanical structure of the five-axis dispensing machine and a workpiece as rigid mechanical structures; s2, the rigid body mechanical structure is divided into two machining kinematic chains; s3, establishing a standard orthogonal axis coordinate system for each rigid body in the machining kinematic chain; s4, converting the coordinate system of each rigid body according to a robot kinematics method to obtain a conversion matrix; s5, performing mechanical calibration operation on the five-axis glue dispenser according to the conversion matrix and the five-axis calibration process; and S6, obtaining a conversion relation between each parameter matrix of the rigid body mechanical structure and the rigid body mechanical structure coordinate system according to the mechanical calibration operation, and carrying out error calibration. The method is used for calibrating five-axis mechanical geometric structure parameters, calculating various errors of a five-axis machine and improving the machining precision of the five-axis machine.

Description

technical field [0001] The invention relates to the technical field of mechanical calibration of five-axis dispensing machines, specifically, an error calibration method for five-axis dispensing machines based on industrial cameras, which is used to calibrate the mechanical geometry parameters of five-axis machines and calculate the mechanical parameters of five-axis machines. Various errors, improve the machining accuracy of five-axis machines, and can also be popularized and applied to five-axis CNC machine tools and other five-axis equipment for precision instrument processing. Background technique [0002] Compared with traditional three-axis machines, five-axis machines have the characteristics of higher machining accuracy, higher machining efficiency, and the ability to process workpieces with more complex structures, and have more competitive advantages in the market. At the same time, due to the increase of the two rotation axes, the mechanical structure of the five-...

AI Technical Summary

Problems solved by technology

[0004] The structure of five-axis mechanical equipment on the market is different. The use of existing measurement tools is restricted by specific mechanical structures, and the applicability is not strong. The calibration process of existing five-axis calibration technology is too cumbersome, takes more time, and is less efficient.

Because of the cumbersome process, the technical requirements for the technical personnel who perform the calibration are relatively high

Measuring instruments such as ballbars and laser interferometers required for calibration are more expensive than the industrial cameras used in the present invention, which will increase the cost of the manufacturer in practical applications. All in all, these traditional solutions have cumbersome calibration procedures and low execution efficiency. High, expensive measuring instruments and other disadvantages

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