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Method and device for compensating indexing error of machine tool

A technology of indexing error and compensation device, applied in the field of error compensation, can solve the problems of 4 indexing error of turntable, influence of radial and axial motion error of rotating shaft, etc. The effect of precision

Inactive Publication Date: 2012-07-11
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

But there is a new problem here, the indexing error of the turntable 4 and the radial and axial movement errors of the rotating shaft affect the measurement results

Method used

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  • Method and device for compensating indexing error of machine tool
  • Method and device for compensating indexing error of machine tool
  • Method and device for compensating indexing error of machine tool

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Embodiment Construction

[0034] It is often difficult for the online in-situ measurement system of the geometric parameters of some complex workpieces to measure the entire workpiece. It is necessary to use the turntable of the machine tool to turn the part to be measured to the front of the measuring machine. The invention compensates the indexing error of the machine tool turntable and the radial and axial motion errors of the rotating shaft by detecting the change of the center position of one or several balls on the standard ball disc installed on the machine tool turntable, so that the error of the machine tool turntable can be compared to the measurement The result has no effect, improving the measurement accuracy. The invention belongs to the field of testing technology and instruments. Specifically, it involves on-line measurement and error compensation technology.

[0035] The invention provides a technology capable of compensating the indexing error of the machine tool turntable and the ra...

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Abstract

The invention relates to error compensation of an on-line in situ measurement system in machining operation, provides a method or a device which can avoid the influence of the turntable indexing error of a machine tool and the radial and axial movement errors of a rotating shaft so as to carry out error compensation. In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the device for compensating the indexing error of the machine tool is structurally characterized in that N master balls are arranged on a round master ball disc; the N master balls are arranged on the same height of the master ball disc, and are uniformly distributed on the excircle concentric periphery of the master ball disc; and the master ball disc is arranged on a turntable of the machine tool, and the excircle of the master ball disc and the rotating shaft of the turntable of the machine tool are concentric. The method and device provided by the invention are mainly applied to mechanical quantity processing measurement.

Description

technical field [0001] The invention relates to the error compensation of an online in-situ measurement system in mechanical processing. Specifically, it relates to a method and a device for compensating indexing errors of machine tools. Background technique [0002] The development of the national economy and national defense has higher and higher requirements for the precision of products, and the proportion of various parts with complex shapes is increasing. These high-precision and complex parts have long processing time and high processing costs, and the losses caused by unqualified products are large. It is of great significance to use appropriate detection devices during the processing process to timely detect various size, shape, and position parameters of the processed parts for improving processing accuracy, ensuring product quality, and preventing or reducing waste products. [0003] At present, a type of in-process detection device widely used at home and abroa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q17/00B23Q16/02
CPCB23Q17/2233B23Q16/025
Inventor 张国雄马艳玲裘祖荣刘书桂李杏华
Owner TIANJIN UNIV
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