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Positional error evaluation method for mobile device and movement accuracy improving method based on evaluation result

A technology of a mobile device and an evaluation method, which is applied in the field of position error evaluation of mobile devices and improvement of moving accuracy according to the evaluation results.

Inactive Publication Date: 2003-01-22
CHUO UNIVERSITY
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  • Abstract
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Problems solved by technology

[0009] The present invention is to provide a kind of error measurement method that considers the characteristic of above-mentioned continuous two-point method, beneficially solves the problem in traditional method

Method used

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  • Positional error evaluation method for mobile device and movement accuracy improving method based on evaluation result
  • Positional error evaluation method for mobile device and movement accuracy improving method based on evaluation result
  • Positional error evaluation method for mobile device and movement accuracy improving method based on evaluation result

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Embodiment Construction

[0041] Hereinafter, a preferred embodiment of the present invention will be described in detail based on an example with reference to the accompanying drawings. it's here, figure 1 is a flow chart showing the flow in a position error evaluation method of a three-dimensional coordinate measuring device as an example of a position error evaluation method of a mobile device according to the present invention. Figures 2(a) to 2(g) are representations of figure 1 Illustrative diagram of the process shown. image 3 is a perspective view showing an example of a three-dimensional coordinate measuring apparatus to which the above example is applied.

[0042] In the example method, first set as image 3 Shown is a coordinate space with three axes of x, y, and z for a three-dimensional coordinate measuring device, wherein the extension direction of the portal frame is set as the X axis as shown in the figure. Here, instead of the probe is the Figure 4 The above-mentioned three-di...

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Abstract

In a mobile device for moving a mobile body in mutually orthogonal two- or three-axis directions, a positional error of the mobile body with respect to a direction orthogonal to preset two-axis directions out of the above two- or three-axis directions is used to determine, by using a sequential two-point method, a straightness error curve representing a change status along one-axis direction out of the above two-axis directions; the straightness error curve determining is repeated for the other one-axis direction out of the above two-axis directions.

Description

technical field [0001] The present invention relates to a method for evaluating the position error of a moving object such as a probe or a tool and a method for improving positional accuracy using the evaluation method, which is used in a three-dimensional coordinate measuring device that moves the probe in three mutually perpendicular axis directions or in a direction perpendicular to each other A moving device that moves the tool in the direction of two or three axes, such as a machine tool. Background technique [0002] With the development of automatic high-precision machining, three-dimensional coordinate measuring devices must have the function of evaluating dimensional accuracy and shape accuracy, which is indispensable in production lines and production systems. Meanwhile, making the measurement accuracy higher than the existing level by means of the three-dimensional measuring device as the hardware not only increases the difficulty in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00B23Q15/06B23Q15/24B23Q17/00B23Q17/24B25J9/16G01B21/04
CPCB25J9/1669B23Q17/24G01B21/042B82Y15/00G01B21/045
Inventor 佐藤芳梅田和昇
Owner CHUO UNIVERSITY
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