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Diameter and parallel multiple-position measurement method for roller roundness error and machine tool principal axis movement error

A technology of motion error and roundness error, which is used in the field of diametric and parallel multi-bit measurement of roll roundness error and machine tool spindle motion error

Inactive Publication Date: 2009-05-27
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These traditional roll measurement devices do not have the function of separating the machine tool system error from the roundness error of the roll

Method used

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  • Diameter and parallel multiple-position measurement method for roller roundness error and machine tool principal axis movement error
  • Diameter and parallel multiple-position measurement method for roller roundness error and machine tool principal axis movement error
  • Diameter and parallel multiple-position measurement method for roller roundness error and machine tool principal axis movement error

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Embodiment Construction

[0039] A preferred example of the present invention is described in detail as follows in conjunction with accompanying drawing:

[0040] The method of measuring the roundness error of the roll and the error of the spindle of the machine tool for the diameter and parallel multi-position adopts figure 1 The measuring device shown: Two sets of ball screw pairs 5, 8 and 9 are installed on the measuring frame 4, which are respectively driven by servo motors 6, 7 and 10, and the critical position of the ball screw pair 8 needs to be set as the ball screw pair 9, so as not to collide with the ball screw pair 9 during the measurement process. The measuring heads of the two sensors 1 and 2 and the measuring head of the sensor 3 parallel to the sensor 2 are installed on the measuring arms 15, 11 and 16 respectively, and driven by the ball screw pairs 5, 8 and 9 respectively. come to contact the roll 13 on the central support 14, thereby realizing the measurement of rolls with different...

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Abstract

The invention relates to a method for diameter and parallel multi-bit measuring roller roundness error and machine spindle motion error, including two displacement sensor diameter disposed on the periphery of the measurement section of the measured roller, one of which used as reference position sensor, while another as measurement sensor with one parallel setting displacement sensor, keeping relative movement with roller surface on different measurement position through roller multi-displacement, obtaining the redundant information of the detected section surface of the roller, establishing corresponding multi-bit roundness error separation equation, and converting the time domain signal in the collected redundant information to the frequency domain signal and analyzing, separating on-machine the roundness error of eccentric rotating motion roller and motion error of the main spindle, thereby realizing the measurement and separation of roller roundness and machine spindle motion error. The invention which is easy to be applied is capable of solving the roundness error online measurement problem of eccentric rotating motion roller, and can be extended to the online measurement and separation of the roundness error of common spindle part and machine spindle motion error.

Description

technical field [0001] The invention relates to a method for measuring the roundness error of a roll and the movement error of a machine tool main shaft in a radial and parallel multi-position manner. One displacement sensor in the diameter setting is used as a reference position sensor, and the other two parallel sensors are used as a measurement sensor. After multiple indexing of the roll, it moves relative to the roll surface at different measurement positions to obtain redundant information on a certain cross-sectional surface of the roll. And establish the corresponding multi-bit roundness error separation equation, transform the time domain signal collected in the redundant information into the frequency domain for analysis, and separate the roundness error of the eccentrically rotating roll and the motion error of the main shaft on the machine , to realize the on-machine measurement of the roundness error of the roll and the movement error of the main shaft. According t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/30G01B7/28G01B7/312
Inventor 刘丽兰俞涛姚俊陈锐闫利文丁晓燕张曙伟
Owner SHANGHAI UNIV
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