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A universal jig for detecting lens thickness

A lens thickness and jig technology, applied in the mechanical field, can solve the problems of low application value and difficult to work with thickness measurement, and achieve the effect of saving reading time, reducing scratches on the workpiece surface, and improving detection efficiency.

Active Publication Date: 2022-01-04
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to work with the existing contact lens thickness measurement, so the application value is not high

Method used

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  • A universal jig for detecting lens thickness
  • A universal jig for detecting lens thickness
  • A universal jig for detecting lens thickness

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Experimental program
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Effect test

Embodiment Construction

[0025] In order to solve the key problem of measuring the above-mentioned medium thickness, the inventor of this case conducted careful design and research, and designed a universal jig for detecting the thickness of the lens.

[0026] Embodiments are described below in conjunction with the accompanying drawings of the description

[0027] Such as figure 1 As shown, the universal fixture includes a fixture shell 2, a V-shaped block 1, a guide slider 4, a screw nut seat 3, a double-threaded screw 5, a V-shaped block 1, a guide slider 4, a screw nut seat 3, and a double-threaded screw. The threaded screw rod 5 forms the transmission part.

[0028] The jig shell 2 is a cylindrical shell, and its inner space is used to place internal transmission components, and its upper surface has a dovetail chute for placing the guide slider 4 . The lower surface is hollowed out, and the jig shell 2 is semi-enclosed to cover most of the parts below, which can effectively avoid dust and debri...

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PUM

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Abstract

A universal jig for detecting the thickness of a lens, belonging to the mechanical field, including a jig shell, a V-shaped block, a guide slider, a screw nut seat, and a double-threaded screw; the inner space of the jig shell is used to place internal transmission components , the upper surface has a dovetail chute for placing the guide slider; the lower surface is hollowed out; the side is provided with a through hole for passing through the double-threaded screw. The two V-shaped blocks are arranged symmetrically on the top of the jig shell, and the bottom is connected with the guide slider. The two guide sliders are threadedly connected with the double-threaded screw rod, and the screw rod is provided with double threads with opposite screw threads. In the present invention, double threads are arranged on the same screw rod, which can avoid the problem that the center position of the lens is shifted due to the difference in the rotational angular velocity of the two screw rods when the two sliders are connected to different screw rods; the v-shaped block has a higher Adaptability, the work of centering and tightening can be completed for lenses with different calibers.

Description

technical field [0001] The invention belongs to the mechanical field, and relates to a clamping device capable of measuring the thickness of a lens, in particular to a universal jig for detecting the thickness of a lens. Background technique [0002] In the field of optics, the thickness of the lens center is an important parameter in the optical system, and its processing quality determines the quality of optical imaging. When the lenses in the optical system are applied to high-performance optical systems such as lithography machine objective lenses and aerospace cameras, a slight deviation in the thickness of the lens center may lead to unqualified imaging quality, so the measurement of them must be strictly controlled. , reducing the error as much as possible. In actual production, lenses need to be inspected multiple times during and after processing. How to improve production efficiency, reduce labor intensity and not scratch the lens during multiple inspections has b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/06
CPCG01B5/06
Inventor 郭江杨哲张蒙
Owner DALIAN UNIV OF TECH