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Linear guiding mechanism with trapezoidal structures

A trapezoidal structure and trapezoidal technology, applied in the direction of linear motion bearings, mechanical equipment, spring components composed of several springs, etc., can solve the problems of small stroke, low motion accuracy, and limited application range, etc., to improve life, Small size, the effect of avoiding errors

Inactive Publication Date: 2013-06-05
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing flexible linear guide mechanism has a small stroke (less than 5mm) and low motion accuracy, which greatly limits the application range of this type of mechanism

Method used

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  • Linear guiding mechanism with trapezoidal structures
  • Linear guiding mechanism with trapezoidal structures
  • Linear guiding mechanism with trapezoidal structures

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0041] see figure 1 , figure 2 , image 3 As shown, the present invention is a linear guide mechanism with a trapezoidal structure, and the guide mechanism includes eight moving units and eight rigid connection blocks.

[0042] Wherein, eight motion units refer to the first motion unit 11, the second motion unit 12, the third motion unit 13, the fourth motion unit 14, the fifth motion unit 21, the sixth motion unit 22, the seventh motion unit 23 and The eighth motion unit 24 . The structures of the eight motion units are the same, and are trapezoidal structures.

[0043] Wherein, eight rigid connection blocks refer to the first rigid connection block 31, the second rigid connection block 32, the third rigid connection block 33, the fourth rigid connection block 34, the fifth rigid connection block 35, the sixth rigid connection block 36 , the seventh ri...

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PUM

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Abstract

The invention discloses a one-dimensional flexible linear guiding structure with trapezoidal structures, which consists of eight movement units and eight rigid connecting blocks. Two ends of each rigid connecting block are respectively connected with across corners of the two corresponding movement units; and the total flexible linear guiding mechanism is manufactured by means of cutting a flat plate by linear cutting technology, and high-precision and long-stroke one-dimension movement can be realized. Each movement unit comprises two reeds and two middle beams and is an inclined trapezoidalstructure, and the movement units are in axial symmetry relation. Simultaneously, virtual rotation centers of the movement units are arranged coincidently, so that the total guiding mechanism is compact in structure and small in volume. The virtual rotation centers of the movement units of the guiding mechanism are located outside a structure, internal stress of the reeds is decreased, and the service life of the flexible mechanism is prolonged.

Description

technical field [0001] The invention relates to a flexible hinge, more particularly, a one-dimensional linear guide mechanism with large deformation and high precision combined with a flexible trapezoidal structure. Background technique [0002] Flexible hinge refers to a structural form that uses elastic deformation of materials to transmit force and energy between adjacent rigid bodies under the action of external loads, thereby generating relative translation or rotation. Compared with traditional rigid hinges, flexible hinges have unique advantages in terms of cost and performance: (1) no lubrication is required, pollution is avoided, and maintenance costs are reduced; (2) no gap, no friction improves repeatability; (3) The compactness reduces the structural weight; (4) It can work in harsh environments such as vacuum and low temperature. It can be applied to precision and ultra-precision transmission and positioning such as micro-motion workbench and optical auto-focus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C29/00F16F3/00
Inventor 赵宏哲毕树生徐熠
Owner BEIHANG UNIV