Universal jig for detecting thickness of lens

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: 2021-03-05
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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  • Universal jig for detecting thickness of lens
  • Universal jig for detecting thickness of lens
  • Universal jig for detecting thickness of lens

Examples

Experimental program
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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

The invention discloses a universal jig for detecting the thickness of a lens, and belongs to the field of machinery. The universal jig comprises a jig shell, V-shaped blocks, guide sliding blocks, lead screw nut seats and a double-thread screw. An internal space of the jig shell is used for placing an internal transmission part, and a dovetail sliding groove is formed in the upper surface of thejig shell and used for placing the guide sliding blocks; the lower surface is in a hollow form; and a through hole is formed in the side surface and is used for penetrating through the double-thread screw. The two V-shaped blocks are symmetrically arranged above the jig shell, and the lower portions of the V-shaped blocks are connected with the guide sliding blocks. The two guide sliding blocks are connected with the double-thread screw through threads, and double threads with opposite thread turning directions are arranged on the screw. The double threads are arranged on the same screw rod, so that the problem that the central position of the lens deviates due to the fact that the two sliding blocks are connected with different screw rods and the rotating angular speeds of the two screw rods are different when the two screw rods rotate can be avoided; the V-shaped blocks have high adaptability, and centering and clamping work 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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IPC IPC(8): G01B5/06
CPCG01B5/06
Inventor 郭江杨哲张蒙
Owner DALIAN UNIV OF TECH
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