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Two-degree-of-freedom large-stroke high-peed and high-precision positioning platform

A positioning platform and large stroke technology, applied in the field of electromechanical, can solve the problems of low reciprocating positioning accuracy, difficult ball screw processing, and limited application range, etc., and achieve low cost, reduced complexity and size, and quick results Effect

Inactive Publication Date: 2010-10-13
郑福胜
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional drives have disadvantages such as large structural size, low stepping accuracy, low reciprocating positioning accuracy, and difficult processing of high-precision ball screws; in addition, some drives have stable output and high precision, but the stroke is small, only tens of microns , which severely limits the scope of its application

Method used

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  • Two-degree-of-freedom large-stroke high-peed and high-precision positioning platform

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Embodiment Construction

[0013] see Figure 1 to Figure 4 , the two-degree-of-freedom, large-stroke, high-speed, high-precision positioning platform of the present invention includes: guide rail I5, guide rail II6 that cooperate with each other, and workbench 2 driven by guiderail I5, wherein, workbench 2 passes through flexible hinge I21, flexible hinge II13 and mass block respectively I1, mass block II4 are connected; piezoelectric stack I14, piezoelectric stack II22 are carried out in flexible hinge I21, flexible hinge II13 through wedge block I, wedge block II, wedge block III, wedge block IV15, 16, 23, 24 Pre-tightening and positioning; guide rail I5 is connected to mass block III8 and mass block IV3 respectively through flexible hinge III12 and flexible hinge IV17; piezoelectric stack III11 and piezoelectric stack IV18 pass wedge block V, wedge block VI, wedge block VII, Wedge blocks VIII9, 10, 19, 20 are preloaded in flexible hinge III12 and flexible hinge IV17. The movable part is realized by...

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Abstract

The invention relates to a two-degree-of-freedom large-stroke high-peed and high-precision positioning platform, belonging to an electromechanical type. The structure of the platform comprises a guide rail and a worktable which are matched with each other, and the worktable is driven by the guide rail and is connected with a mass block through a flexible hinge; a piezoelectric stack is pre-tightened and located in the flexible hinge through a wedge-shaped block; the guide rail is connected with the mass block through the flexible hinge; and the piezoelectric stack is pre-tightened in the flexible hinge through the wedge-shaped block. The positioning platform has the advantages of greatly improving the drive accuracy of the common drivers, reducing the complexity and the size of the structure, and having low cost, less investment, quick returns, high benefit and the like.

Description

technical field [0001] The invention relates to electromechanical products, in particular to a two-degree-of-freedom, large-stroke, high-speed, high-precision positioning platform used in the fields of precision machining machine tools, detection of nanomechanical properties of material specimens, micro-electromechanical systems, precision optics, aerospace, and robots. technical background [0002] In recent years, with the rapid development of disciplines such as microelectronics, life sciences, medicine and health, biochemistry, semiconductors, optics, data storage, ultra-precision machinery and its manufacturing, and precision measurement, people have become more interested in micro-nano-level precision positioning technology and There is an increasing demand for precision drive technology at the micro-nano level. Therefore, various drivers with precise positioning or precise driving have been developed. Traditional drives generally use stepping motors to drive ball scr...

Claims

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Application Information

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IPC IPC(8): F16M11/18F16M11/04
Inventor 郑福胜赵宏伟曹洲里
Owner 郑福胜
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