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Cylindricity non-contact measuring device and method for precision workpiece

A non-contact, measuring device technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve problems such as large errors, workpiece damage, and small scratches on the surface, so as to eliminate measurement errors, avoid damage, and improve Measuring the effect of precision

Pending Publication Date: 2019-04-05
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem that the existing measurement method of the cylindricity of precision workpieces causes damage to the workpiece itself, leaves tiny scratches on the surface, and has large errors

Method used

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  • Cylindricity non-contact measuring device and method for precision workpiece
  • Cylindricity non-contact measuring device and method for precision workpiece

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] Such as figure 1 As shown, a non-contact measuring device for cylindricity of a precision workpiece includes a turntable 2 and two sets of cylindrical autocollimators arranged on the side of the turntable 2; the turntable 2 is used to fix the measured cylindrical workpiece 1, and the measured cylindrical The workpiece 1 is coaxial with the turntable 2, and each group of cylindrical autocollimators includes a line light source 7, and a standard cylindrical lens 3, a collimating cylindrical lens 4, a light splitting element 5, and a light sensor 6 are sequentially arranged from the inside to the outside of the turntable 2 The light beam sent by the line light source 7 passes through the light splitting element 5, and is reflected to the collimated cylindrical mirror 4, becomes a parallel light beam through the collimated cylindrical mirro...

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Abstract

The present invention belongs to the field of cylindricity measurement, in particular to a cylindricity non-contact measuring device and method for a precision workpiece, in order to solve the problems of the damage to the workpiece, small scratches on the surface, and large errors caused by using the existing cylindricity measuring method for the precision workpiece. The device comprises a turntable and two sets of cylindrical self-collimators arranged on the side of the turntable; the turntable is used for fixing the to-be-measured cylindrical workpiece, and the to-be-measured cylindrical workpiece is coaxial with the turntable; each set of the cylindrical self-collimator comprises a line source, a beam splitting component, a collimating cylinder mirror and a standard cylindrical lens; the outgoing light of the line source sequentially passes through the beam splitting component, the collimating cylinder mirror, and the standard cylindrical lens to become a convergence line beam, andthe focal line of the convergence line beam is located at the position of the rotating shaft of the turntable; and the convergence line beam is reflected by the surface of the to-be-measured workpiece, returns along the original path, and is received by the light sensor via the light splitting element.

Description

technical field [0001] The invention belongs to the field of cylindricity measurement, in particular to a non-contact measuring device and method for cylindricity of precision workpieces. Background technique [0002] In the field of mechanical processing, the cylindricity measurement of high-precision workpieces is one of the important contents of the design requirements. If the cylindricity of the precision workpiece does not meet the requirements, the movement resistance will increase, which will increase the wear of the workpiece and reduce its life. Therefore, it is necessary to measure the cylindricity of the precision workpiece to ensure that it can meet the design requirements. [0003] At present, the methods for measuring the cylindricity of precision workpieces mainly include two-point method, three-point method, and three-coordinate measurement method. Calculate the cylindricity information, the above measurement method has the following disadvantages: [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24
CPCG01B11/2408
Inventor 解来运贾乃勋
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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