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Portable optical interference method spherical diameter and sphericity rapid detection instrument

An optical interference, portable technology, applied in the direction of using optical devices, instruments, measuring devices, etc., can solve the problems of restricting production efficiency, cumbersome process, long time consumption, etc., to achieve the effects of light weight, improved detection efficiency, and easy portability

Active Publication Date: 2016-11-16
BEIJING INST OF AEROSPACE CONTROL DEVICES
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  • Abstract
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AI Technical Summary

Problems solved by technology

Obviously, this detection method is cumbersome, time-consuming, and inefficient, which greatly restricts production efficiency.

Method used

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  • Portable optical interference method spherical diameter and sphericity rapid detection instrument
  • Portable optical interference method spherical diameter and sphericity rapid detection instrument

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Embodiment Construction

[0015] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a portable optical interferometry sphericity rapid detector of the present invention includes a hand-held probe 1 , a host 2 and a display 3 .

[0017] Such as figure 2 As shown, the reference optical glass sample 4 at the front end of the hand-held probe 1 is inserted into the front sleeve 5, and is fixed by the elastic bead mechanism composed of the steel ball 6 and the elastic pressure ring 7, which can prevent the reference optical glass sample 4 from loosening. It can also realize the rapid replacement of reference optical glass templates 4 with different spherical diameters; a whole-body light-emitting optical fiber 9 is wound between the light-transmitting sleeve 8 and the front-end sleeve 5, and the other end of the whole-body light-emitting optical fiber 9 is aligned with the laser th...

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Abstract

The invention provides a portable optical interference method spherical diameter and sphericity rapid detection instrument, comprising a hand-held probe, a host and a display. The front end of the hand-held probe is a reference optical glass templet with surrounding self-bring monochromatic light illumination. In detection, the reference optical glass templet is adhered to a tested sphere or spherical bowl part. An interference fringe figure generated due to a spherical diameter difference is subjected to imaging by a CCD system and output. Based on the optical interference principle and known monochromatic light wavelength, f-number, aperture shape and interrelation thereof, interference fringes are subjected to image processing and calculation, and a display is used to output spherical diameter and sphericity values and a simplified interference fringe figure. The invention is convenient to carry and flexible to use, achieves online detection of parts during processing, and greatly improves the detection efficiency of high precision spherical parts.

Description

technical field [0001] The invention relates to machining and measuring industries. Specifically, it is a device capable of conveniently, rapidly and accurately detecting the spherical diameter and degree of spherical parts. Background technique [0002] The final accuracy of high-precision spherical parts (including balls and bowls) is achieved by ball grinding machine or manual lapping. At present, the production efficiency of such parts is low, and one of the important reasons is the low detection efficiency. In order to realize micron or submicron sphere diameter and sphericity detection, high-precision optical compound three-coordinate instrument and roundness instrument are used in engineering to complete. When using these equipment to test the ball diameter and sphericity, there are the following disadvantages: 1. The parts to be tested need to be removed from the processing equipment and sent to the above-mentioned testing equipment for testing. If the size is req...

Claims

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Application Information

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IPC IPC(8): G01B11/08G01B11/24
CPCG01B11/08G01B11/2441
Inventor 段荣汪雪董清宇焦国涛闫珺岳春国葛新伟
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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