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Angle calibration device and method for two-degree-of-freedom joint measurement

A technology of angle calibration and degrees of freedom, applied in measurement devices, optical devices, testing of mechanical parts, etc., can solve the problems of inaccuracy, time-consuming and labor-intensive calibration, and achieve the effect of reducing errors, simple structure and reducing labor.

Active Publication Date: 2020-08-25
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to overcome the above-mentioned defects of the prior art, provide a two-degree-of-freedom joint measurement angle calibration device and method, and solve the time-consuming, laborious and inaccurate problems of traditional calibration

Method used

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Embodiment Construction

[0039] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0040]It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be used for fixation as well as for coupling or communication.

[0041] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in t...

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Abstract

The invention discloses an angle calibration device and method for two-degree-of-freedom joint measurement. The device comprises a two-degree-of-freedom rotating clamp, a driver, a horizontal angle measuring unit, a vertical angle measuring unit and an angle data acquisition device, the two-degree-of-freedom rotating clamp comprises a horizontal rotating shaft, a vertical rotating shaft, a front clamping piece and a rear clamping piece. The front clamping piece is arranged to enable the front end of the workpiece to be clamped and then to be still allowed to swing in the vertical direction andthe horizontal direction, and the rear clamping piece is arranged to enable the rear end of the workpiece to be clamped and then not to be allowed to swing in the vertical direction and the horizontal direction and enable the workpiece to be clamped and then not to be allowed to twist and slide. The front clamping piece is supported and installed on the vertical rotating shaft, the vertical rotating shaft is supported and installed on the horizontal rotating shaft, the horizontal rotating shaft and the vertical rotating shaft are loaded with the horizontal angle measuring unit and the vertical angle measuring unit respectively, and the driver drives the front end of the workpiece to deflect in the horizontal direction and the vertical direction. The angle calibration device is high in calibration precision, full-automatic calibration can be achieved, and manpower is greatly saved.

Description

technical field [0001] The invention relates to the fields of sensing and robots, in particular to an angle calibration device and method for two-degree-of-freedom joint measurement. Background technique [0002] Two-degree-of-freedom joint measurement is widely used in various mechanical structures, such as multi-axis robots, and the measurement accuracy directly affects the working accuracy of the mechanical structure. Degree of freedom refers to motion in different directions. In this paper, two degrees of freedom refer to horizontal and vertical rotation. In some places, two dimensions are also used instead. In actual industrial applications, due to parts processing errors, mechanical structure movement errors, measurement methods, etc., it may cause two-degree-of-freedom angle measurement errors or even errors, which may cause wear and tear on the mechanical structure, or cause the machine to fail to work. One-degree-of-freedom joint measurement can often be calibrated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01B11/26
CPCG01B11/26G01M13/00
Inventor 尹向辉梁斌王学谦朱晓俊刘厚德
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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