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Calibration method and calibration device for machine tool measuring head or coordinate machine measuring head

A calibration method and a calibration device technology, which are applied in the field of measurement, can solve problems such as the inability to use the overall accuracy of one-dimensional length calibration technology, and achieve the effect of improving manufacturing efficiency and product accuracy

Inactive Publication Date: 2020-03-27
NAT INST OF METROLOGY CHINA
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  • Application Information

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Problems solved by technology

Since the probe realizes the measurement of three-dimensional dynamic displacement, the existing one-dimensional length calibration technology cannot be used to ensure its overall accuracy

Method used

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  • Calibration method and calibration device for machine tool measuring head or coordinate machine measuring head
  • Calibration method and calibration device for machine tool measuring head or coordinate machine measuring head

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Embodiment Construction

[0026] Hereinafter, the calibration method and calibration device for a machine tool probe or a coordinate machine probe of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0027] Since the machine tool or coordinate measuring machine can be equipped with probes of different sizes before the measurement work, the parameters of different probes are different. Therefore, the compensation parameters that need to be set for different probes during measurement are also different. Therefore, it is necessary to calibrate the probe of the machine tool or coordinate measuring machine to ensure the measurement accuracy.

[0028] One aspect of the present invention provides a calibration method for a machine tool probe or a coordinate machine probe.

[0029] In an exemplary embodiment of the present invention, as figure 1 As shown, the calibration method may include the steps of:

[0030] (1) Obtain at least two ...

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Abstract

The invention discloses a calibration method and a calibration device for a machine tool measuring head or a coordinate machine measuring head. The method comprises the steps of acquiring at least twotrigger displacement values delta Lxi of a to-be-measured probe in the X-axis direction, and obtaining the probe trigger precision delta Lx of the probe in the X-axis direction according to the trigger displacement values delta Lxi; obtaining at least two trigger displacement values delta Lyi of the probe to be measured in the Y-axis direction, and obtaining the probe trigger precision delta Ly of the probe in the Y-axis direction according to the trigger displacement values delta Lyi; obtaining at least two trigger displacement values delta Lzi of the probe to be measured in the Z-axis direction, and obtaining the probe trigger precision delta Lz of the probe in the Z-axis direction according to the trigger displacement values delta Lzi; and according to the delta Lx, the delta Ly and the delta Lz, space precision calibration is carried out on the to-be-measured head. The device comprises a standard displacement generator and a signal conditioning unit. The calibration device has thebeneficial effect that the machine tool measuring head or the coordinate machine measuring head can be accurately calibrated.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a calibration method and a calibration device for the detection accuracy of a probe. Background technique [0002] With the strict control of manufacturing quality and the implementation of Industry 4.0, more and more companies realize that online processing and online measurement can greatly improve manufacturing efficiency and product accuracy, and can achieve energy saving and green manufacturing. [0003] The world's most advanced manufacturing technology has been able to measure while processing, which is the development trend of the manufacturing industry. The measuring probe is the core to ensure the processing quality. Since the probe realizes the measurement of three-dimensional dynamic displacement, the existing one-dimensional length calibration technology cannot be used to ensure its overall accuracy. Contents of the invention [0004] In view of the deficien...

Claims

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Application Information

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IPC IPC(8): G01B21/04G01B21/00
CPCG01B21/00G01B21/042
Inventor 任国营
Owner NAT INST OF METROLOGY CHINA