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Orthogonal decoupling six-dimensional force sensor

A six-dimensional force sensor and force measurement technology, applied in the direction of measuring force components, etc., can solve the problems of difficult processing and complex structure, and achieve the effects of large overall stiffness, simple measurement principle and simple structure.

Inactive Publication Date: 2014-01-01
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above types of six-dimensional force sensors with parallel structures, most of the sensitive elements are arranged in space, and the structure is relatively complex, and the processing is difficult. Therefore, there are relatively few six-dimensional force sensor structures that can be applied to actual production.

Method used

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Examples

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Embodiment Construction

[0024] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0025] In this embodiment, the force-measuring platform 1 and the fixed platform 6 are flat plates and placed parallel to each other, and a square through hole is opened in the center of the force-measuring platform 1 . The bottom end of the column 4 is fixedly connected with the fixed platform 6 . The column 4 is a cross-shaped structure with equal cross-section; the horizontal and vertical sides of the column 4 are equal in length; the fixed platform 6 and the force-measuring platform 1 are of equal-diameter structure and arranged concentrically.

[0026] A group of vertical detection branches 2 are set to four evenly distributed around the axis of the column 4, and each vertical detection branch 2 is represented by M1, M2, M3 and M4 respectively, as figure 2 shown in . Both ends of each vertical detection branch 2 are respectively connected with the ...

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Abstract

The invention relates to the field of design and manufacturing of force sensors and particularly relates to an orthogonal decoupling six-dimensional force sensor. The orthogonal decoupling six-dimensional force sensor comprises a fixed platform, a force measuring platform, detection branches and a strain gage, wherein the fixed platform and the force measuring platform are arranged in a parallel state; a set of detection branches at the vertical state are arranged between the fixed platform and the force measuring platform; each of the fixed platform and the force measuring platform is of a circular-disc-shaped structure; the center of the force measuring platform is provided with a quadrilateral through hole and the quadrilateral through hole is internally provided with a stand column; the other end of the stand column is connected with the fixed platform; the stand column is provided with a set of detection branches at the horizontal state; the other end of the detection branch at the horizontal state is connected with a hole wall of the quadrilateral through hole. The orthogonal decoupling six-dimensional force sensor has the following advantages of simple structure, simple and convenient measurement principle and great whole rigidity; all the detection braches are distributed in parallel or vertically so as to realize decoupling measurement on six-dimensional outer forces.

Description

technical field [0001] The invention relates to the field of force sensor design and manufacture, in particular to an orthogonal decoupling six-dimensional force sensor. Background technique [0002] The six-dimensional force sensor has become a very important type of sensor because it can perceive all the information of external force and torque. It has important application value in aerospace, machining, automobile manufacturing, intelligent robot and other fields. Its application has covered national defense technology and various fields of civil industry. Therefore, a six-dimensional force sensor with high precision, high sensitivity and adaptability to a certain environment is urgently needed and has a very broad application prospect. [0003] The upper and lower platforms of the classic Stewart platform mechanism are all hexagonal, and then the two ends of the six moving branches are connected with the vertices of the hexagon through spherical pairs to form a parallel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/16
Inventor 王志军贺静崔冰艳李占贤
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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