Device and method for measuring coaxiality

A coaxiality and detected technology, applied in the field of coaxiality measuring devices

Active Publication Date: 2015-07-15
XIAN NORTH ELECTRO OPTIC TECH DEFENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in terms of coaxiality measurement, the method of visual reading measurement of dial indicator is almost us

Method used

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  • Device and method for measuring coaxiality
  • Device and method for measuring coaxiality

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] Such as figure 1 As shown, a device for measuring coaxiality includes a light source 1, and a dichroic prism 2 placed on the exit surface of the light source 1. A lens 3, a dichroic prism 2 5, and a dichroic prism 2 are sequentially arranged below the dichroic prism 1 There is a detected axis 6 under the second 5, a plane mirror 7 placed at an angle of 45° is provided on the left side of the dichroic prism 2, and a detected axis 8 is provided under the plane mirror 7; The CCD detector 9 is electrically connected to the processor 10, and the processor 10 is electrically connected to the computer 11. The CCD detector adopted by the invention has high quantum detection efficiency, high spatial resolution, high density resolution, high dynamic range, can obtain the best image, long-term reliable and consistent image quality, and greatly reduces the use cost.

Example Embodiment

[0029] Example 2

[0030] On the basis of Example 1,

[0031] The light source 1 of the present invention is a semiconductor laser point light source, which has the characteristics of clarity, good consistency, and long service life; the lens one 3 and the lens two 4 are convex lenses; the dichroic prism 2 and the dichroic prism The second prism 5 is a polarization beam splitting prism with a high extinction ratio.

[0032] Such as figure 2 As shown, a method for measuring coaxiality includes the following steps:

[0033] 1) Set up the light path, set the light source at the focal point of lens 1, so that the light beam emitted by the light source passes through the dichroic prism 1 and lens 1 to form a parallel beam; when lens 1 and lens 2 are set, the focal position coincides; the parallel beams converge after passing through lens 2. , And then pass through the second beam splitter prism to reach the first axis, the first axis is set at the focal plane of the second lens; the pa...

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Abstract

The invention discloses a device and a method for measuring coaxiality. The device comprises a light source and a first beam splitting prism which is arranged on the emitting face of the light source. A first lens, a second lens and a second beam splitting prism are sequentially arranged below the first beam splitting prism. A first detected shaft is arranged below the second beam splitting prism. A plane reflecting mirror which is arranged by an angle of 45 degrees is arranged to the left of the second beam splitting prism. A second detected shaft is arranged below the plane reflecting mirror. A CCD detector is arranged above the first beam splitting prism. The CCD detector is electrically connected with a processor. The processor is electrically connected with a computer. The method comprises the following steps that firstly, a light path is constructed; secondly, the CCD detector is calibrated; thirdly, the light path is regulated; fourthly, reflected light tracks of the first detected shaft and the second detected shaft are imaged on the CCD detector and are output to the computer through the processor; fifthly, track matching is carried out by the computer, a coaxiality value is obtained by calculating. The theory is simple, the implementation is strong, the stability is good, the advantages of the automation and the intelligence are achieved, and online measuring can be carried out on the coaxiality.

Description

technical field [0001] The invention relates to a coaxiality measuring device in the technical field of optical detection, in particular to a device and method for measuring coaxiality during the assembly process of a shaft coupling. Background technique [0002] In mass industrial production, the highly automated production process and the increasing product quality require more effective, accurate and high-speed detection and identification methods. Optical detection technology can ensure the reliability in the industrial field environment, improve the degree of production automation, and greatly improve production efficiency. Therefore, in the modern automated production process, optical detection is widely used in product identification, quality control, measurement inspection, automation equipment and other fields. [0003] At present, in terms of coaxiality measurement, almost all of them use the method of visual reading measurement of dial indicator. This method has ...

Claims

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Application Information

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IPC IPC(8): G01B11/27
Inventor 张晓李时威胡振民朱宏斌王静
Owner XIAN NORTH ELECTRO OPTIC TECH DEFENSE
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