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

An angle calibration and degree-of-freedom technology, which is used in measuring devices, optical devices, and testing of mechanical components. It can solve problems such as inaccuracy, time-consuming and labor-intensive calibration, and achieve the effect of reducing errors, simple structure, and labor reduction.

Active Publication Date: 2021-10-08
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Description
  • Claims
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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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  • Angle calibration device and method for two-degree-of-freedom joint measurement

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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

An angle calibration device and method for two-degree-of-freedom joint measurement, the device includes a two-degree-of-freedom rotating fixture, a driver, a horizontal angle measurement unit, a vertical angle measuring unit, and an angle data acquisition device, and the two-degree-of-freedom rotating fixture includes a horizontal Rotating shaft, vertical rotating shaft, front clamping part and rear clamping part, the front clamping part is set so that the front end of the workpiece is still allowed to swing in the vertical direction and horizontal direction after being clamped, and the rear clamping part is set so that the rear end of the workpiece After being clamped, it is not allowed to swing in the vertical and horizontal directions, and the workpiece is not allowed to twist and slide after being clamped; the front clamp is supported and installed on the vertical shaft, and the vertical shaft is supported and installed on the On the horizontal shaft, the horizontal shaft and the vertical shaft are respectively loaded with a horizontal angle measurement unit and a vertical angle measurement unit, and the driver drives the front end of the workpiece to deflect in the horizontal direction and the vertical direction. The angle calibration device has high calibration accuracy, can realize fully automatic calibration, and greatly saves manpower.

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 Patents(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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