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Clamping device and method for large-aperture diffraction grating

A diffraction grating and clamping device technology, applied in the direction of installation, optics, optical components, etc., can solve the problems of affecting components, time-consuming and labor-intensive, difficult component positioning, etc., to achieve the effect of eliminating local stress and avoiding local stress

Inactive Publication Date: 2014-09-24
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used clamping method is to fix the component by positioning the pressure plate and the top screw. When replacing the component, it is necessary to disassemble the pressure plate and loosen all the top screws, which is time-consuming and laborious, and it is also difficult to accurately position the component in the center of the frame; the fixed pressure plate is in the When in contact with components, the surface-to-surface contact is actually changed into a line-to-surface contact due to processing or assembly deviations, and the local stress generated in this way directly affects the surface shape of the components.

Method used

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  • Clamping device and method for large-aperture diffraction grating
  • Clamping device and method for large-aperture diffraction grating
  • Clamping device and method for large-aperture diffraction grating

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Embodiment Construction

[0026] see figure 1 , figure 2 as well as image 3 The present invention provides a clamping device for a large-aperture diffraction grating. The clamping device for a large-aperture diffraction grating includes a mirror frame 2, a main positioning plate 3 arranged on the edge of the mirror frame 2, and four pressing plates respectively arranged at the four corners of the mirror frame 2. Tighten the arm group; place the large-diameter diffraction grating 1 to be clamped in the frame and rest on the main positioning plate; press the arm group to press the large-diameter diffraction grating 1 to be clamped and connect it to the frame.

[0027] The pressing arm group 4 includes a pressing arm 41 and an extruding device for pressing the large-aperture diffraction grating 1 to be clamped; through the through hole; the pressing arm 41 is connected with the mirror frame 2 through the thread provided in the threaded hole; the pressing device extends into the through hole and rests ...

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Abstract

The invention relates to a clamping tool and a clamping method on the basis of the tool. A clamping device of a large-aperture diffraction grating comprises a mirror frame, a main positioning frame arranged at the side edge of the mirror frame, and four compressing arm sets which are respectively arranged at four corners of the mirror frame; a large-aperture diffraction grating to be clamped is positioned into the mirror frame and stopped on the main positioning plate; the compressing arm sets compress the large-aperture diffraction grating to be clamped to connect with the mirror frame. With the adoption of the clamping device and method for the large-aperture diffraction grating, the installation and debugging are fast, and the precision is high.

Description

technical field [0001] The invention belongs to the technical field of optical element assembly and adjustment, and relates to a clamping tool and a clamping method based on the tooling, in particular to a clamping device and a clamping method of a large-aperture diffraction grating. Background technique [0002] As a key device for precise diagnosis of the main parameters of the diffraction grating, there are problems of large test aperture (the diameter of the tested element is greater than 430mm×430mm), large quantity (on the order of hundreds of pieces), and high measurement accuracy. The commonly used clamping method is to fix the component by positioning the pressure plate and the top screw. When replacing the component, it is necessary to disassemble the pressure plate and loosen all the top screws, which is time-consuming and laborious, and it is also difficult to accurately position the component in the center of the frame; the fixed pressure plate is in the When in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00
Inventor 张磊郑小霞孙策达争尚
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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