A Calibration Method for Five-Axis Machine Tool

Abstract

The invention discloses a method for calibrating a five-axis machine tool, which comprises obtaining a preset number of coordinate points on the motion track of each motion axis when the single axis moves, and calculating the direction vector of each of the motion axes according to the coordinate points and the intersection point of the two rotation axes; calculate the perpendicularity between the movement axes according to the direction vectors of each of the movement axes; calculate the relative offset between the rotation axis coordinate system and the tool coordinate system according to the intersection point and The relative offset between the rotation axis coordinate system and the workpiece coordinate system; collect the coordinate data of the preset points when each of the motion axes reciprocates between the preset points, and obtain each of the motions according to the coordinate data Axis repeatability. The calibration method can realize the simple and efficient calibration of the five-axis machine tool and improve the calibration accuracy. The invention also discloses a calibration system, a device and a computer-readable storage medium for a five-axis machine tool, all of which have the above beneficial effects.

Description

Technical field [0001] The present invention relates to the field of five-axis machine tool, and more particularly to a calibration method of a five-axis machine tool; there is also a calibration system, device, and a computer readable storage medium of a five-axis machine. Background technique [0002] The five-axis machine includes X linear motion shaft, Y linear motion axis, Z linear motion shaft, and A rotating shaft and C rotation shaft, which belongs to high precision equipment, which is highly accurate to machine tools. At present, there is a direct measurement method for machine tailing. On the one hand, some parameters in the calibration process cannot be directly measured, such as the relative positional relationship between the rotary shaft coordinate system origin and the tool coordinate system; On the one hand, the direct measurement has a variety of parameters, thereby seriously affecting the calibration accuracy of the machine. [0003] In view of this, how to prov...

AI Technical Summary

Problems solved by technology

At present, direct measurement is mostly used for machine tool calibration. On the one hand, some parameters in the calibration process cannot be obtained through direct measurement, such as the relative positional relationship between the origin of the rotation axis coordinate system and the origin of the tool coordinate system cannot be directly measured; on the other hand On the one hand, there are errors in the parameters obtained by direct measurement, which seriously affects the calibration accuracy of the machine tool

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