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A high-precision non-contact workpiece inner diameter measuring device and method

A measuring device and non-contact technology, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems that the laser ranging sensor cannot be placed in the inner bore, and the inner bore of the workpiece cannot be accurately measured, so as to achieve fast measurement speed, The effect of small measurement point and high directivity

Inactive Publication Date: 2016-07-06
SHENYANG LIGONG UNIV
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Problems solved by technology

However, for workpieces with small caliber and large inner bore, due to the very small diameter, the laser ranging sensor cannot be placed in the inner bore, and thus the size of the inner bore of the workpiece cannot be accurately measured

Method used

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  • A high-precision non-contact workpiece inner diameter measuring device and method
  • A high-precision non-contact workpiece inner diameter measuring device and method
  • A high-precision non-contact workpiece inner diameter measuring device and method

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Embodiment Construction

[0023] A high-precision non-contact workpiece inner diameter measuring device, comprising a fixed bracket 1, a first measuring rod 2, a second measuring rod 14, a first driving mechanism 3, a second driving mechanism 8, a first laser distance measuring sensor 4, a second A laser distance measuring sensor 13 , a third laser distance measuring sensor 15 , a rotating frame 7 and a reflector 5 . The fixed bracket 1 is provided with a sliding track, the cross-section of the first measuring rod 2 is arc-shaped, the first measuring rod 2 is placed in the rotating frame 7, and the outer wall of the rotating frame 7 is fixedly connected with a slider 6, and the sliding The block 6 is connected with the sliding track set by the fixed bracket 1, and a suspension ring 10 is arranged on the slider 6, and the suspension ring 10 is connected with the counterweight mechanism 12 through a hinge 11. The slider 6 is located at the first side of the fixed bracket 1, and the counterweight mechanism...

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Abstract

A device and method for measuring the inner diameter of a high-precision non-contact workpiece. The device includes a fixed bracket, a first measuring rod, a first drive mechanism, a first laser ranging sensor and a reflector. The fixed bracket is provided with a sliding track. The first measurement A slider is connected to the upper part of the rod, and the slider is connected to the sliding track, and the first driving mechanism drives the slider to move along the sliding track, so that the bottom of the first measuring rod can enter the inner bore of the workpiece to be measured; the first measuring rod is set The first laser distance measuring sensor, the bottom of the first measuring rod is equipped with a reflector, the first laser distance measuring sensor can emit a measuring laser, and the reflector can reflect the measuring laser to the inner wall of the workpiece to be measured, and reflect the diffusely reflected measuring laser to the first laser distance measuring sensor, and the first laser distance measuring sensor obtains the measurement result of the inner wall of the measured workpiece according to the received light information. The invention is non-contact detection, which avoids the adverse effects of object deformation, interference, work interruption and the like caused by contact.

Description

technical field [0001] The invention relates to the technical field of laser precision measurement, in particular to a high-precision non-contact workpiece inner diameter measurement device and method. Background technique [0002] Large-scale workpiece detection technology is a major key technology related to the production quality of workpieces. With the improvement of research and production efficiency, higher and higher requirements are put forward for the accuracy and efficiency of detection. The traditional large-scale workpiece size inspection adopts manual measurement method, that is, the caliper is clamped at the position where the workpiece size needs to be detected, and the workpiece size is judged to be qualified by manual reading. This manual measurement method is not only time-consuming and laborious, but also has low precision, which cannot meet the needs of modern production automation. [0003] At present, laser sensing technology is widely used in precisio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/12
Inventor 姜月秋刘晓云梁志宏高宏伟
Owner SHENYANG LIGONG UNIV
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