Method and device for compensating machining error of machine tool, and part processing machine tool
A processing error and compensation method technology, applied in the field of parts processing, can solve the problems of machine tool benchmark drift and dimensional error compensation that cannot meet high-precision plate parts, and achieve the effect of fast and efficient processing of dimensional deviation, and improvement of processing accuracy and quality.
Active Publication Date: 2022-01-21
BEIJING INSTITUTE OF TECHNOLOGYGY
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[0003] The embodiment of the present invention provides a machine tool processing error compensation method, device and part processing machine tool to solve the machine tool reference drift in the processing process based on the on-machine measurement results that cannot meet the requirements of high-precision plate parts in the process of machine tool processing in the prior art Problems with Compensation for Dimensional Errors
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[0050] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
[0051] In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of each process should be determined by its functions and internal logic, and should not be implemented in the present invention. The implementation of the examples constitutes no limitation.
[0052] In order to make the tec...
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The invention provides a machine tool processing error compensation method, device and part processing machine tool, and relates to the technical field of part processing. The method includes, according to the in-situ measurement results of the part to be processed, establishing a measured analytical model of the key features of the part to be processed; according to the measured analytical model and the preset analytical model of the key feature, determining the The adjustment ratio of the part in the direction of at least one coordinate axis in the plane coordinate system; discretizing the measured analytical model and the preset analytical model to obtain the measured point cloud model and the preset point cloud model of the key features; according to the The measured point cloud model and the preset point cloud model are used to calculate the error compensation parameters of the part to be processed; according to the adjustment ratio and the error compensation parameters, the tool position points are correspondingly adjusted. The embodiments of the present invention can efficiently compensate the reference drift and size deviation of the parts caused by the thermal deformation of the machine tool, and improve the machining accuracy and quality of the machine tool.
Description
technical field [0001] The invention relates to the technical field of parts processing, in particular to a machine tool processing error compensation method, device and part processing machine tool. Background technique [0002] Due to the machine tool datum drift and dimensional error caused by the thermal deformation of the machine tool during the part processing, it is difficult to ensure sufficient machining accuracy in machine tool processing. The adaptive intelligent processing technology based on the closed-loop control of "online measurement-compensation analysis-program adjustment-delivery execution" can improve processing efficiency and ensure processing accuracy. At present, the processing compensation analysis and precise control based on online measurement in the workshop mostly rely on operating experience, and there is no feasible and effective method. Compensation of machine tool datum drift and dimensional error in the machining process based on on-machine...
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IPC IPC(8): G05B19/404
CPCG05B19/404G05B2219/34117
Inventor 王爱民吴龙王康龙震还
Owner BEIJING INSTITUTE OF TECHNOLOGYGY