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Measurement device for coaxiality error of multi-stage rotating body and measurement method

A measuring device and rotating body technology, applied in the field of geometric quantity measurement, can solve problems such as the difficulty in measuring the coaxiality error of multi-stage rotating bodies, and achieve the effects of measurement and compensation

Active Publication Date: 2019-01-04
THE FIRST MONITORING CENT OF CHINA EARTHQUAKE ADMINISTATION
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  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention lies in the fact that it is difficult to measure the coaxiality error of a multi-stage rotating body or a rotating body whose profile is not a rotating body in the prior art, so as to provide a method for measuring the coaxiality error

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  • Measurement device for coaxiality error of multi-stage rotating body and measurement method
  • Measurement device for coaxiality error of multi-stage rotating body and measurement method
  • Measurement device for coaxiality error of multi-stage rotating body and measurement method

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Embodiment

[0033] A measuring device for the coaxiality error of a multi-stage rotating body proposed by the present invention, such as figure 1 As shown, the device includes a support system 1 , a rotation system 2 , a visual measurement system 3 and a computer 4 .

[0034] The support system 1 includes a base 11. At least three sets of lifting and fine-tuning structures 19 are provided on the bottom of the base 11 for accurately leveling the horizontal rotating table 21; a longitudinal linear guide rail 12 is installed on the upper right side of the base 11, so A longitudinal slider 13 is installed on the longitudinal linear guide rail 12, a threaded screw passes through the longitudinal slider 13, a longitudinal control handwheel 14 is connected to the top of the screw, and a horizontal linear guide rail is connected to the longitudinal slider 13 15. A transverse slider 16 is installed on the transverse linear guide rail 15, a threaded screw passes through the transverse slider 16, an...

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Abstract

The invention discloses a measurement method for the coaxiality error of a multi-stage rotating body, which is characterized in that the deviation of the axis of an adapter relative to the axis of a step shaft is measured by using a visual measurement system so as to realize self-calibration for the coaxiality error of the measurement device; the measured rotating body is placed on the adapter, ahorizontal rotating platform is rotated, the moving trajectory of the top end face of the measured rotating body is measured, the deviation of the top axis of the measured rotating body relative to the axis of the step shaft is determined, and thus the deviation of the top axis of the measured rotating body relative to the axis of a connector is obtained; each rotating shaft of the measured rotating body is rotated, the deviation of the top axis of the measured rotating body relative to the axis of each rotating shaft is determined, and thus a relative deviation relation between the axes of the rotating shafts is obtained; and finally, the maximum value of the coaxiality error of the top of the multi-stage rotating body relative to a reference axis can be obtained. The measurement method can eliminate system errors of the measurement device, is low in requirement for the outer contour of the measured rotating body and solves the difficult problem of coaxiality error measurement for themulti-stage rotating body.

Description

technical field [0001] The invention relates to the field of geometric quantity measurement, in particular to a method for measuring the coaxiality error of a multistage rotating body. Background technique [0002] At present, the national standard GB / T 1958-2017 stipulates that the detection and verification schemes for coaxiality errors include cylindricity instrument, coordinate measuring machine, combination of coaxial guide sleeve and measuring frame, combination of gauge and micrometer, deflection instrument and Roundness instrument, etc.; in some mechanical manufacturing processes, the new contact measurement technology used is basically a deformation of the above measurement scheme; some researches use laser displacement sensors for coaxiality detection of inner diameters, and use machine vision measurement technology for Concentricity detection of stepped shafts. However, many of the above-mentioned measuring methods are only aimed at a single rotary workpiece. So...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/27
CPCG01B11/272
Inventor 苏国营韩勇李文一赵立军刘承宇景琦刘浩史永明邓董建刘垚刘雪龙张晶
Owner THE FIRST MONITORING CENT OF CHINA EARTHQUAKE ADMINISTATION
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