Elastic element based three freedom degree precision movement support device

A technology of precision motion and support mechanism, applied in optical components, installation, optics, etc., can solve the problems of high precision requirements of space and parts processing, friction and return clearance hysteresis, complex bearing shafting mechanism, etc., to achieve simple implementation Flexible, bend-free, well-informed effects

Inactive Publication Date: 2007-10-24
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this kind of motion support system based on bearing shafting is that it can achieve a large range of motion and displacement, but the disadvantage is that friction, return clearance and even hysteresis are inherent problems that are difficult to overcome, especially for the realization of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Elastic element based three freedom degree precision movement support device
  • Elastic element based three freedom degree precision movement support device
  • Elastic element based three freedom degree precision movement support device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Embodiment 1, a three-degree-of-freedom precision motion support mechanism based on elastic elements, see Figures 3-7, the whole system can be regarded as a three-layer structure. On the frame 1, the size and orientation of the high-strength and high-elasticity diaphragm (support diaphragm) 8 are selected to select the installation position of the support column 5 formed by a regular hexagon at six points, and the six support columns 5 are fastened with the support column screws 13 Connected to the frame 1. The supporting column 5 passes through the through hole 15 on the supporting plate 2, and the supporting plate 2 is connected with the displacement movement mechanism 12. The adjusting washer 10, the supporting diaphragm 8 and the limit protection disk 11 are connected and fastened with the screw 9 and the supporting plate 2. The adjusting washer 10 is used to support the diaphragm 8 to adjust the installation height. The six corners of the supporting diaphragm 8 are res...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a three-freedom-degree accurate motion support device based on flexible element, wherein a frame and a support plate are arranged with three independent linear displacement devices A, B and C parallel with the mirror normal line and distributed along the circumference of a support mirror in equal 120 degrees, while the center is arranged with a rotary motion couple and an axial motion guide coupler. The invention is characterized in that the two couples comprise that the frame is fixed with a plurality of support posts uniformly distributed on a concentric circle, which are respectively fixed with the outer edge of a membrane (as flexible membrane or support membrane) with high strength and flexibility, to function eccentric pre-stress on the flexible membrane to expand the membrane, and the center of the flexible membrane is fixed with a support plate. The invention can avoid rolling or sliding connection and realize the displacement without return space, with low cost, but without lubricant, special maintenance or the like.

Description

Technical field [0001] The present invention provides a precision support device with three degrees of freedom of movement, which is especially suitable for support in optical mirror, precision tracking or super-finishing industries that require micro-nano-resolution precision movement on a sub-millimeter stroke. Background technique [0002] In the working process of modern astronomical telescopes, optical mirrors often require precise motions with three degrees of freedom and high resolution on a small stroke of the sub-millimeter order, that is, translation along its normal and rotation around two axes perpendicular to the normal. . According to the principle that a rigid body must realize the motion of determining the number of degrees of freedom, it must have the same principle of independent original motion, and according to the convenience and manufacturability of engineering realization, three independent linear motions are generally selected as the original motion. Refer...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B7/183
Inventor 杨德华姜方华
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap