Calibration method of five-axis machine tool

A calibration method and machine tool technology, applied in metal processing mechanical parts, measuring/indicating equipment, metal processing equipment, etc., can solve the problems of parameter error, direct measurement, affecting the calibration accuracy of machine tools, etc., to achieve efficient calibration and meet high precision The effect of calibration and improvement of scale accuracy

Active Publication Date: 2019-03-26
SUZHOU UNIV
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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 ax

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  • Calibration method of five-axis machine tool
  • Calibration method of five-axis machine tool
  • Calibration method of five-axis machine tool

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[0044] The core of the present invention is to provide a five-axis machine tool calibration method, which can realize the simple and efficient calibration of the five-axis machine tool and improve the calibration accuracy; another object of the present invention is to provide a five-axis machine tool calibration system, device and computer All readable storage media have the above beneficial effects.

[0045] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative wo...

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Abstract

The invention discloses a calibration method of a five-axis machine tool. The calibration method comprises the steps of obtaining a preset number of coordinate points on the movement trajectory when each movement axis conducts uniaxial motion and calculating the direction vectors of the movement axes and the intersection point of two rotation axes according to the coordinate points; figuring out the perpendicularity between the movement axes according to the direction vectors of the movement axes; calculating the relative offset between a rotation axis coordinate system and a tool coordinate system and the relative offset between the rotation axis coordinate system and a workpiece coordinate system according to the intersection point; and collecting coordinate data of preset fixed points when the movement axes reciprocate between the preset fixed points, and obtaining the repeated positioning accuracy of the movement axes according to the coordinate data. Simple and efficient calibration of the five-axis machine tool can be realized, and the calibration precision can be improved. The invention further discloses a calibration system of the five-axis machine tool, a calibration device and a computer readable storage medium, all of which have the above beneficial effects.

Description

technical field [0001] The invention relates to the field of five-axis machine tools, in particular to a calibration method for five-axis machine tools, and also relates to a calibration system, device and computer-readable storage medium for five-axis machine tools. Background technique [0002] The five-axis machine tool includes X linear motion axis, Y linear motion axis, Z linear motion axis, A rotation axis and C rotation axis, which are high-precision equipment and have high precision requirements for machine tool calibration. 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 m...

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Application Information

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IPC IPC(8): B23Q17/22
CPCB23Q17/2233
Inventor 陈国栋张恒丁梓豪王正王振华孙立宁
Owner SUZHOU UNIV
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