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Alloy cast ingot positioning method based on machine vision

A technology of alloy ingot casting and positioning method, which is applied in the direction of instruments, image data processing, calculation, etc., can solve the problems of inaccurate positioning, limited demoulding efficiency, and difficulty in realizing large-scale continuous automatic production, so as to achieve accurate positioning and improve demoulding Die efficiency, the effect of avoiding wrong operation

Inactive Publication Date: 2014-07-23
CHONGQING INST OF MECHANICAL & ELECTRICAL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The efficiency of demoulding is greatly limited, and at the same time, due to inaccurate positioning, it is difficult for the existing demoulding system to realize large-scale continuous automatic production

Method used

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  • Alloy cast ingot positioning method based on machine vision

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] Such as figure 1 As shown, a machine vision-based alloy ingot positioning method includes the following steps:

[0020] Step 1, obtaining the grayscale image of the mold containing the alloy ingot;

[0021] Step 2, binarizing the obtained grayscale image to obtain a black and white image;

[0022] Step 3, performing edge sharpening on the black and white image;

[0023] Step 4, carry out circle search to the outer edge of the mold in the black and white image and carry out circle fitting to the outer edge of the mold, obtain the circle center coordinates and the circle radius of the mold in the black and white image;

[0024] Step 5, performing a circle search on the outer edge of the alloy ingot in the black and white image and performing circle fitting on the outer edge of the alloy ingot to obtain the circle center coordinates and circle radius o...

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Abstract

The invention discloses an alloy cast ingot positioning method based on machine vision and belongs to the field of alloy ingot casting. The alloy cast ingot positioning method based on machine vision is more accurate in positioning and can achieve automated control of alloy demoulding. According to the alloy cast ingot positioning method based on machine vision, error operation due to manual observation errors can be avoided, so that the demoulding efficiency of alloy cast ingots can be improved.

Description

technical field [0001] The invention belongs to the field of alloy ingots, in particular to a method for positioning alloy ingots based on machine vision. Background technique [0002] Demoulding is to process ingots of different shapes, sizes and single weights, and complete the following process operations: free or forced demoulding, heat insulation cap removal, ingot removal; free or forced removal of steel ingots on the bottom plate. Existing demoulding machine, majority relies on static force to be assembled on hoisting machinery and pulls and pushes away special tool. Through the opening and closing and lifting movement of the clamp and the gravity of the steel ingot and the ingot mold, various free demoulding, capping and ingot stripping operations are completed, and the relative linear motion between the top, the block and the clamping tool of the ejector tool is used. Carry out forced demoulding (stripping) operations. [0003] In the die-casting production proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60
Inventor 罗斌罗云管维柱樊毅李严杨为梅琦刘爽
Owner CHONGQING INST OF MECHANICAL & ELECTRICAL ENG