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Multi-axis numerical control machine tool on-machine measurement data compensation method and system

A technology of numerical control machine tools and measurement data, which is applied in general control systems, control/regulation systems, program control, etc., and can solve problems such as low precision

Pending Publication Date: 2022-08-05
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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Problems solved by technology

[0004] In view of the above-mentioned problems existing in the prior art, the present invention provides an on-machine measurement data compensation method for a multi-axis CNC machine tool, which measures and calculates the compensation amount through multiple rotating axes and a preset standard sphere, so as to realize the on-machine measurement The error compensation helps to solve the technical problem of lack of compensation for on-machine measurement of workpieces in the prior art, which leads to low precision

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[0034] In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0036] These and other features of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the accompanying drawings.

[0037] It is also to be understood that although the application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalents of the application with certainty, which have the characteristics as claimed in the claims and are therefore located in the places hereby recited. within the limited scope of protection.

[00...

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Abstract

The embodiment of the invention discloses a multi-axis numerical control machine tool on-machine measurement data compensation method and system, and the method comprises the steps: measuring a reference coordinate point of a preset standard ball through a measuring head in a zero state of rotating shafts of all machine tools, and obtaining a first coordinate; rotating the rotating shaft to a rotating angle during on-machine measurement; measuring the reference coordinate point of the standard ball through a measuring head to obtain a second coordinate; and obtaining a compensation amount according to the first coordinate and the second coordinate so as to realize error compensation during on-machine measurement. The compensation amount is measured and calculated through the multiple rotating shafts and the preset standard ball, so that error compensation during on-machine measurement is achieved, and the technical problem that in the prior art, compensation is not provided for on-machine measurement of a workpiece, and consequently precision is not high is solved.

Description

technical field [0001] The invention relates to the field of on-machine measurement of numerically controlled machine tools, in particular to a method for compensating on-machine measurement data of a multi-axis numerically controlled machine tool and a system thereof. Background technique [0002] Multi-axis CNC machine tools, such as the more common five-axis CNC machine tools, have the advantage of being able to process parts with complex surfaces, avoiding multiple clamping of parts. Processing productivity. In order to meet the requirements of processing closed-loop control, intelligent processing, and processing quality control, on-machine measurement has become an essential function of five-axis machine tools. Different from the probe for measuring machine, the probe for on-machine is a fixed probe, which cannot be rotated by itself. With the help of the rotation of the two rotating axes of the five-axis machine tool, the probe can be angled relative to the workpiece...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/35408Y02P90/02
Inventor 李昆唐纯纯毕超刘勇
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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