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Machine tool turntable comprehensive thermal error detection device and installation method

A detection device, thermal error technology, applied in the direction of computer control, instruments, simulators, etc., can solve the problems of low measurement efficiency, difficult operation of the device, high cost, etc., and achieve the effect of overcoming high cost

Pending Publication Date: 2020-11-20
TIANJIN UNIV
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Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art and solve the problems of difficult operation, high cost and low measurement efficiency in the prior art, the present invention aims to propose a comprehensive thermal error detection device and method for the turntable of a machine tool. Measure thermal error of axial runout, thermal error of axial runout and thermal error of rotation axis inclination, provide original data for further error compensation, and promote the improvement of turntable accuracy

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  • Machine tool turntable comprehensive thermal error detection device and installation method
  • Machine tool turntable comprehensive thermal error detection device and installation method
  • Machine tool turntable comprehensive thermal error detection device and installation method

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Embodiment Construction

[0025] The present invention is described in detail below in conjunction with accompanying drawing:

[0026] refer to Figure 1 to Figure 4 , the present invention is based on a comprehensive thermal error detection device for a machine tool turntable, which is mainly divided into a sensor module and a reference round table module. 3. Base 4, bottom plate 5, support cylinder 6, top plate 7 and positioning pin 8; the magnetic base 2 and eddy current sensor 1 are adsorbed on the main shaft; the data acquisition system is connected with a computer and can be displayed in real time by testing software The data measured by the sensor; the side and the edge of the top surface of the base 4 and the top plate 7 are precision-machined to ensure its accuracy; The T-shaped groove of the platform is threaded; the bottom plate 5 is radially fixed with the base 4 through the positioning pin 8, and then the base 4 is threaded with the threaded hole on the bottom plate 5; the support cylinde...

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Abstract

The invention provides a machine tool turntable comprehensive thermal error detection device and an installation method. The detection device is mainly divided into a sensor module and a reference circular truncated cone module; the sensor module comprises a magnetometer seat, an eddy current sensor and a data acquisition system; the reference circular truncated cone module comprises a base, a positioning pin, a circumferential positioning pin, a bottom plate, a support cylinder and a top plate; the reference circular truncated cone module is fixed to the turntable through the positioning pinand threaded connection; and the sensor module obtains radial runout, axial runout thermal errors and rotation axis inclination thermal errors of the turntable by measuring front-back displacement changes of a precise surface heat engine of the reference circular truncated cone module. Measurement of radial run-out thermal errors, axial run-out thermal errors and rotation axis inclination thermalerrors of the machine tool turntable caused by the thermal effect is achieved, original error data are provided for further error compensation, and improvement of the precision of the turntable is promoted. The method can be applied to machine tool turntable comprehensive thermal error detection occasions.

Description

technical field [0001] The invention relates to an error detection device and method, in particular to a comprehensive thermal error detection device and installation method for a turntable of a machine tool. Background technique [0002] Machine tool is a machine tool widely used in the field of machinery manufacturing. The turntable of the machine tool is used to cooperate with the linear axis during part processing to improve processing efficiency and accuracy. Due to the heat generated by the motor and the frictional heat generated by the bearing, the turntable inevitably produces thermal errors of radial runout, thermal error of axial runout, and thermal error of the inclination of the rotary axis. [0003] At present, the widely used thermal error detection devices of turntable are mainly ballbar, R-test instrument and laser interferometer. Among them, the ballbar measurement requires good installation accuracy, the device cost is high and the installation is complica...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
CPCG05B19/404
Inventor 高卫国宫怀叡张大卫李伟李金和翁凌韬郑英杰史凯
Owner TIANJIN UNIV
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