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A Non-contact Measurement Method of Forging Dimensions

A size and vector technology, applied in the field of online non-contact measurement of forgings size based on linear array CCD camera and linear structured light projector, can solve the problems of limited measurement range and low resolution, achieve high-precision measurement and improve system resolution rate, the effect of increasing the measurement range of the system

Inactive Publication Date: 2016-12-07
BEIJING INSTITUTE OF TECHNOLOGYGY +2
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  • Abstract
  • Description
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of non-contact measurement of forging size, to overcome the defects of low resolution and limited measurement range of existing technical solutions, and to provide an online non-contact measurement of forging based on linear array CCD camera and line structured light projector. size method

Method used

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  • A Non-contact Measurement Method of Forging Dimensions
  • A Non-contact Measurement Method of Forging Dimensions
  • A Non-contact Measurement Method of Forging Dimensions

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Embodiment Construction

[0032] The concrete implementation of the present invention is described in detail in conjunction with accompanying drawing and technical scheme:

[0033] An on-line scanning measuring device for three-dimensional shape of forgings such as figure 1 As shown: the linear array CCD camera 8 is installed on the two-degree-of-freedom pan-tilt 1, and the one-line structured light projector 3 is installed on the single-degree-of-freedom pan-tilt 2. The two pan-tilts are separated by a certain distance according to the size requirements of the measured object. Place gimbal 1 and 2, the distance between them is the so-called baseline distance. The baseline distance should be designed according to the size of the measured object, and the baseline distance has an impact on the measurement accuracy.

[0034] The measurement system uses the principle of optical triangulation, 8 optical centers of the linear array CCD camera, the optical center of the line structured light, and the interse...

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Abstract

The invention provides a non-contact measurement method for the size of a forging, which uses a linear array CCD and a line structured light to scan and collect feature points, deduces the three-dimensional coordinates of the feature points based on the principle of optical triangulation and performs three-dimensional modeling, and then analyzes to obtain the size of the forging and other information. By adopting the above-mentioned measurement device and method, the system resolution is improved, the system measurement range is increased, the problem of target matching in binocular vision is avoided, and large-scale three-dimensional high-precision measurement can be realized.

Description

technical field [0001] The invention relates to a non-contact measurement method for forging size, in particular to an online non-contact measurement method for forging size based on a linear array CCD camera and a line structured light projector. Background technique [0002] Large-scale forgings are the basic parts for manufacturing major equipment, and their volume is huge. The measurement of their geometric parameters belongs to the problem of super-large size measurement under complex conditions. In the forging process, the traditional measurement method is to use mechanical measuring tools and measure manually. This measurement method is seriously affected by measuring tools and human factors, and the measurement error is large. In order to reduce the scrap rate, the method of increasing the forging allowance is often used, but the loss of steel ingot material is increased. In addition, strong impacts and vibrations often exist in the forging production environment, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/25
Inventor 朱炜李建丽田丽辛倩倩杨延竹陈能洁盛佳伟齐亮汤雪华马贺贺张茂松
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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