Automatic part identifying and positioning method for automatic sorting
An automatic sorting and automatic identification technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of difficult identification and separation of parts and waste materials, uncertain placement of plate raw materials, and various shapes, etc., to achieve The effect of increasing the degree of automation
Active Publication Date: 2018-02-13
SHENYANG INST OF AUTOMATION GUANGZHOU CHINESE ACAD OF SCI +1
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Problems solved by technology
[0003] In the automatic sorting process of parts, the identification and precise positioning of parts is the primary condition for whether the automatic sorting process can be completed. Due to the particularity of the parts that are cut from the plate, the identification and precise positioning of the parts are faced with the following problems: 1) After the plate is cut The parts are of different sizes and shapes; 2) It is difficult to identify and separate useful parts and waste through technical means such as image recognition; 3) The placement of sheet materials is uncertain
The above problems are difficult to solve using traditional video recognition and other technologies
Method used
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[0036] Such as figure 1 , figure 2 As shown, the object of this embodiment is a plate part cut by a CNC machine tool, and the cutting process of the CNC machine tool is carried out according to the CAD nesting drawing. For the automatic sorting of parts after cutting, it is necessary to clarify the parts and their locations for automatic sorting. Since the parts are in the plane coordinate system after cutting and the placement position is consistent with the CAD nesting diagram, the focus of the automatic identification and positioning method of the parts is to solve how to extract the automatic sorting parts and their position information from the CAD nesting diagram .
[0037] The method of automatic identification and positioning of parts for automatic sorting, the specific implementation process is as follows:
[0038] 1. CAD nesting drawing preprocessing: First, translate the CAD nesting drawing to the lower left corner to coincide with the origin of the coordinate s...
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The invention relates to an automatic part identifying and positioning method for automatic sorting. The method comprises the steps that 1, a CAD copy map is loaded by using AUTO CAD software and preprocessed, and redundant elements in the map are deleted; 2, for the CAD copy map obtained after preprocessing, parts in the CAD copy map are identified; 3, according to screening conditions, parts obtained after automatic sorting are screened out; 4, center of gravity coordinates of the parts are obtained to serve as positioning coordinates of the parts, and the coordinates are converted into sitecoordinates; 5, the parts obtained after automatic sorting are numbered, and the positioning coordinates of the parts are exported and stored in the form of an XML file. Accordingly, the parts meeting the automatic sorting conditions can be accurately identified and the grabbing positions of the parts in the field sorting process can be provided, preconditions are provided for automatic sorting of the parts, and the sorting efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of automatic sorting, in particular to a method for automatic identification and positioning of parts oriented to automatic sorting. Background technique [0002] At present, in the blanking production process, after the plates in most factories are cut by CNC machine tools, in the sorting process of the generated parts, the manual operation of the manipulator crane is basically used to grab and transfer the workpiece. The automatic sorting method is inefficient, prone to errors in long-term operation, and the labor intensity of workers is high and the risk is high. With the development of intelligent manufacturing technology, the requirements of modern manufacturing industry for production efficiency have been greatly improved, and the sorting of sheet metal parts will inevitably enter the stage of automatic operation. [0003] In the automatic sorting process of parts, the identification and precise posit...
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IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 肖金超魏三喜刘继海冯东英
Owner SHENYANG INST OF AUTOMATION GUANGZHOU CHINESE ACAD OF SCI