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Flexible limit support device for large-caliber light reflecting mirror

A light-weight mirror, limit support technology, applied in grinding machines, metal processing equipment, grinding/polishing equipment, etc., can solve the problem of thermal-structural deformation, local deformation cannot be eliminated, etc., to improve the ability to resist external load deformation , The effect of reducing the maximum principal stress and uniform force on the supporting surface

Inactive Publication Date: 2014-03-12
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the final support force of the Whiffletree and Grubb support models is reflected in the rigid support rods, and the local deformation caused by thermal-structural deformation, vibration load, and airflow changes caused by external temperature changes cannot be eliminated.

Method used

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  • Flexible limit support device for large-caliber light reflecting mirror
  • Flexible limit support device for large-caliber light reflecting mirror
  • Flexible limit support device for large-caliber light reflecting mirror

Examples

Experimental program
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Embodiment Construction

[0046] Below in conjunction with accompanying drawing and specific embodiment, the present invention is further explained:

[0047] like figure 1 , 2 , 3, the floating support structure of the device of the present invention adopts the Whiffletree model, which is a transitional support structure model, and its purpose is to initially position the workpiece. The floating support structure mainly includes a base 101, a central column 102, a lever support frame 103, a lever 104, a ball 105, a tripod 106, a floating positioning column 107, a floating support plate 108, and a cylindrical pin 109. Wherein lever support frame 103, lever 104, ball 105, tripod 106 constitute floating lever balance model;

[0048] like image 3 As shown, the surfaces at both ends of the lever 104 are hemispherical concave surfaces, and the connection mode with the tripod 106 is a ball joint connection;

[0049] like figure 1 , 4 As shown, the flexible support structure mainly includes a support co...

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Abstract

The invention discloses a flexible limit support device for a large-caliber light reflecting mirror and an installation method for the device. The device mainly comprises a floating support device, a flexible support structure, a gear transmission mechanism and a pressure sensing device. The specific support method comprises the following steps of: performing optimization analysis on the position and caliber of each flexible limit support disc and support reaction applied to each support surface on the surface of the large-caliber light reflecting mirror under the action of gravity and the pressure of a grinding disc based on a thin round plate deformation theory; putting a workpiece on a Whiffletree structural model transition support disc, and positioning the workpiece; rotating a worm wheel and worm transmission mechanism, and lifting each flexible support disc; and positioning each support disc in real time by using the pressure sensing device based on the support reaction calculated by a finite element. The error correction effect is good, the influence of external thermal gradient change is eliminated, and the requirements of the active grinding disc machining, detection and application processes of the large-caliber light reflecting mirror can be met.

Description

technical field [0001] The present invention relates to the technical field of light mirror support devices, in particular to a flexible limit support device and method for a large-diameter light mirror. The support device and method can be applied to the active polishing process and detection process of large-diameter grinding discs. In the implementation and application stage, the support device and method can reduce the negative effects of external force load, inertial load and thermal load, thereby ensuring the imaging quality of the optical system. Background technique [0002] With the continuous improvement of performance requirements of modern optical systems, the quality requirements of optical components are also continuously improved. In order to improve the imaging quality of the optical system and reduce the cost, modern optical parts are developing towards the trend of aspheric surface, large relative aperture and high light weight. However, during use, the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B13/01
Inventor 钟显云范斌万勇建曾志革周家斌
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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