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Point laser probe on-machine calibration method

A calibration method and point laser technology, which are applied to measuring devices, optical devices, instruments, etc., can solve the problems of accurate calibration of the position of the laser probe without points, and achieve the effect of easy operation and reliable results.

Active Publication Date: 2021-03-09
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no method in the existing technology that can accurately calibrate the position of the point laser probe in the on-machine state

Method used

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  • Point laser probe on-machine calibration method

Examples

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Embodiment 1

[0075] For a Kede KMC800 machine tool equipped with GNC61 CNC system, the on-machine calibration of the meter iridium point laser probe ILD2300-20 is carried out. Proceed as follows:

[0076] Step 1, install the point laser probe and the square workpiece on the machine tool, and the first Z-direction coordinate value of the top plane of the square workpiece is 100mm.

[0077] Step 2, adjust the point laser probe to the working posture, control the laser beam of the point laser probe to irradiate the reference surface, make the reading of the point laser probe be the first intermediate value 0 mm, and record the second Z coordinate The value is 368.328mm.

[0078] Step 3, according to the formula for calculating the length of the point laser probe, the length of the point laser probe is calculated to be 268.328 mm.

[0079] Step 4, remove the square workpiece, and fix a standard ball with a diameter of 20mm on the machine tool table; adjust the position of the point laser pro...

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Abstract

The invention belongs to the technical field of on-machine measurement, and particularly relates to a point laser probe on-machine calibration method. The calibration method comprises the steps that S1, a point laser probe is installed on a spindle of a machine tool, a square workpiece is placed on a workbench of the machine tool, and the Z-direction coordinate value of a reference plane on the square workpiece on the machine tool is recorded as a first Z-direction coordinate value; and S2, the point laser probe is adjusted to be in a working pose, a laser beam of the point laser probe is controlled to irradiate the reference plane, the reading of the point laser probe is made to be a first intermediate value, and the Z-direction coordinate value of the spindle on the machine tool at the moment is recorded as a second Z-direction coordinate value. The point laser probe on-machine calibration method provided by the invention realizes on-machine calibration of a point laser probe, and issimple and convenient to operate and reliable in result.

Description

technical field [0001] The invention belongs to the technical field of on-machine measurement, in particular to an on-machine calibration method of a point laser measuring head. Background technique [0002] Compared with contact measurement, non-contact measurement has the advantages of no contact with the workpiece, no radius compensation of the stylus ball head, and no approach retraction action, etc. It is very suitable for the measurement of complex curved surface parts. As a non-contact measuring device, the point laser measuring head has been used in a certain range in the field of coordinate measurement. [0003] The point laser probe is connected with the tool handle of the machine tool through a specific device interface, and then installed on the spindle of the machine tool through the tool handle of the machine tool. Under the control of the CNC system, the movement of each axis of the machine tool makes the point laser probe move in space relative to the workpie...

Claims

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Application Information

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IPC IPC(8): G01B21/04G01B21/02G01B21/00G01B21/22G01B11/02G01B11/00
CPCG01B21/042G01B21/02G01B21/00G01B21/22G01B21/04G01B11/002G01B11/02
Inventor 李昆刘勇韩海涛
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC