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REVO (Resident Encrypted Variable Output) measuring head position posture calibrating method in joint arm type coordinate measuring machine

A coordinate measuring machine and calibration method technology, which is applied to measuring devices, instruments, etc., can solve the problem of low accuracy of measurement results

Inactive Publication Date: 2012-08-15
TIANJIN UNIV
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  • Application Information

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Problems solved by technology

There is no relevant record in the prior art, so the accuracy of the measurement result is not high

Method used

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  • REVO (Resident Encrypted Variable Output) measuring head position posture calibrating method in joint arm type coordinate measuring machine
  • REVO (Resident Encrypted Variable Output) measuring head position posture calibrating method in joint arm type coordinate measuring machine
  • REVO (Resident Encrypted Variable Output) measuring head position posture calibrating method in joint arm type coordinate measuring machine

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Embodiment Construction

[0049] The present invention provides a calibration method for the position and posture of the REVO probe. The calibration includes two aspects: one is the calibration of the parallelism between the B axis of the REVO probe and the z-axis movement axis, and the other is the A axis and the x direction of the REVO probe. Calibration of the parallelism of the axis of motion.

[0050] For ease of explanation, create as figure 1 In the coordinate system shown, the x-axis is parallel to the x-axis motion axis, the z-axis is parallel to the z-axis motion axis, and the y-axis is perpendicular to the x-axis and the z-axis. The calibration of the parallelism between the B-axis and the z-axis of the REVO probe can be divided into two aspects. One is the calibration of the parallelism between the B-axis and the z-axis of motion in the xoz coordinate plane, and the other is the B-axis and the z-axis of motion. Parallelism calibration in the yoz coordinate plane. In the same way, the calibrat...

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Abstract

The invention belongs to the field of testing technology and instrument and provides a calibrating method of a joint arm type coordinate measuring machine which can improve the measuring precision. According to the technical scheme adopted by the invention, an REVO (Resident Encrypted Variable Output) measuring head position posture calibrating method in the joint arm type coordinate measuring machine is carried out on a measuring machine device and the method comprises the following steps of: establishing a coordinate system, wherein an X axis is parallel to an x-directional movement axis of the REVO measuring head and a Z axis is parallel to a z-directional movement axis of the REVO measuring head; calibrating the parallelism depth of a B axis of the REVO measuring head and the z-directional movement axis: in order to determine a parallelism depth error on an xoy coordinate plane of the A axis of the Revo measuring head corresponding to the x-directional movement axis, vertically placing the other plane on a standard plane which is vertically placed and carrying out measurement. The REVO measuring head position posture calibrating method in the joint arm type coordinate measuring machine is mainly used for measuring.

Description

Technical field [0001] The invention belongs to the field of testing technology and instruments, and specifically relates to a method for calibrating the position and posture of a REVO probe in an articulated arm type coordinate measuring machine. Background technique [0002] The development of the national economy and national defense requires higher and higher precision of products, and parts with various complex shapes account for an increasing proportion. These high-precision and complex parts have long processing time, high processing costs, and large losses caused by unqualified products. The use of appropriate detection devices during the processing technology to timely detect the various size, shape, and position parameters of the processed parts is of great significance for improving processing accuracy, ensuring product quality, and preventing or reducing waste. [0003] Due to the influence of factors such as processing and installation errors, coordinate measuring mac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00G01B21/22
Inventor 李杏华苏智琨魏晨
Owner TIANJIN UNIV
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