Five-shaft structure error measuring method of mirror image milling system, system and device thereof

A technology of mirror milling and error measurement, applied in general control systems, control/adjustment systems, instruments, etc., can solve the problem of inability to mirror motion error measurement and correction
CN108614520AActive Publication Date: 2018-10-02AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
Publication Date
2018-10-02

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Abstract

The invention relates to five-shaft structure error measuring method of a mirror image milling system, a system and a device thereof. The method comprises the steps of constructing a geometric model,based on a multi-body system kinetic theory, constructing a geometric model of spatial positioning errors of a cutter central point P0 of a mill image milling processing area and a supporting centralpoint P1 of a supporting head in a motion process; acquiring pose data, through a displacement measuring device on a processing head of the mirror image milling system, acquiring pose (position and attitude) data of P0 and P1 in a preset measuring path; calculating a dynamic error, performing calculation processing on the acquired pose data of the P0 and P1, and obtaining a characteristic value ofthe motion error of the five-shaft structure; and performing data feedback adjustment, and based on the characteristic value of the five-shaft structure, performing feedback of the error compensationdata of the five-shaft structure to the control system of the image mirror milling system, making adjustment of the five-shaft structure according to error compensation data by the control system, sothat the supporting head performs synchronous movement with the processing head.
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Description

technical field

[0001] The invention relates to the technical field of machine tools, in particular to a method, system and device for measuring five-axis structural errors of a mirror image milling system. Background technique

[0002] With the continuous development of manufacturing technology, mirror milling technology has become a new technology for skin processing, and it is the main way of machining large thin-walled components in the future. In practice, various factors such as thermal deformation, friction, vibration and inertia in the process of manufacturing, assembly, control and movement will cause five-axis structural errors, making it difficult for the actual movement trajectory of the equipment to match the ideal trajectory, resulting in processing errors and affecting The machining accuracy of the workpiece is guaranteed.

[0003] Mirror milling equipment involves a five-axis CNC milling head and a five-axis follower support mechanism. The function of the su...

Claims

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