A comprehensive measuring device for deformation of rotating arm of parallel double-joint coordinate measuring machine

A technology of a coordinate measuring machine and a rotating arm, which is applied in the direction of measuring devices, optical devices, instruments, etc., to achieve the effect of compact device structure and improved measurement accuracy

Inactive Publication Date: 2017-05-17
HEFEI UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Combined with the real-time measurement requirements and comprehensive measurement requirements for the deformation error of the measurement device, there is currently no good measurement device or method for real-time and comprehensive measurement of the deformation error of the rotating arm of the parallel double-joint coordinate measuring machine

Method used

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  • A comprehensive measuring device for deformation of rotating arm of parallel double-joint coordinate measuring machine
  • A comprehensive measuring device for deformation of rotating arm of parallel double-joint coordinate measuring machine
  • A comprehensive measuring device for deformation of rotating arm of parallel double-joint coordinate measuring machine

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Embodiment Construction

[0019] Such as figure 1 shown. A comprehensive measurement device for the deformation of a rotating arm of a parallel double-joint coordinate measuring machine, comprising a rotating arm 1, an upper optical self-collimation lens 2 is installed on the top of the left end of the rotating arm 1, a lower optical self-collimation lens 3 is installed on the bottom of the left end, and the rotating arm 1 The upper optical position sensitive detector 4 is installed on the top of the right end, the lower optical position sensitive detector 5 is installed on the bottom of the right end, the upper optical self-collimating lens 2 corresponds to the position of the upper optical position sensitive detector 4 and is on the same horizontal line, The self-collimating lens 3 corresponds to the position of the lower optical position sensitive detector 5 and is on the same horizontal line, and also includes a laser diode drive circuit 6, a laser diode 7, a current / voltage conversion circuit 9, a...

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Abstract

The invention discloses a comprehensive measuring device for the deformation of a parallel double-joint coordinate measuring machine rotating arm. The measuring device is used for measuring the dynamic flexural deformation and torsional deformation of the parallel double-joint coordinate measuring machine rotating arm which occur in a measuring process in real time. According to the device, a set of laser emitting sources and a set of optical position sensitive detectors are arranged on each of the upper and lower sides of the rotating arm, so that the comprehensive measurement of the flexural deformation and the torsional deformation of the rotating arm are realized. A data collection card and a programmed upper computer software are combined, so that the deformation error of the rotating arm can be measured in real time. The device is compact in structure and convenient to mount, and has little influence on the rotating arm and a parallel double-joint coordinate measuring machine, the deformation error of the parallel double-joint coordinate measuring machine can be measured comprehensively in real time, and the measurement precision of the parallel double-joint coordinate measuring machine can be improved through error compensation.

Description

technical field [0001] The invention relates to the field of rotating arm measuring devices, in particular to a comprehensive measuring device for the deformation of a rotating arm of a parallel double-joint coordinate measuring machine. Background technique [0002] The parallel double-joint coordinate measuring machine belongs to the non-orthogonal system coordinate measuring system. Compared with the traditional orthogonal system three-coordinate measuring machine, it has the advantages of simple structure, small size, light weight, easy installation and low requirements on environmental conditions. It can be used in Use in workshop environment. The disadvantage of the parallel double-joint CMM is that its measurement accuracy is lower than that of the Cartesian CMM. In order to improve the measurement accuracy of the parallel double-joint coordinate measuring machine, it is necessary to detect and compensate the measurement error. The component deformation error of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/16
Inventor 于连栋张炜董钊郑文兴夏豪杰李鹏鲁思颖张海燕
Owner HEFEI UNIV OF TECH
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