Method for obtaining automatic processing data of welding variable groove of hull curve plate

A technology for automatic processing and acquisition methods, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of cumbersome calculation process, error-prone, low efficiency, etc., to achieve simple operation, improve efficiency, and easy to popularize. Effect

Active Publication Date: 2016-08-10
DALIAN SHIPBUILDING IND
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Problems solved by technology

At present, the manual formula calculation method is mainly used. The calculation process is cumbersome and

Method used

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  • Method for obtaining automatic processing data of welding variable groove of hull curve plate
  • Method for obtaining automatic processing data of welding variable groove of hull curve plate
  • Method for obtaining automatic processing data of welding variable groove of hull curve plate

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Embodiment Construction

[0032] The technical solution adopted by the present invention is to integrate three-dimensional CAD cutting, chamfering algorithm and Hypermesh grid division algorithm, convert the variable groove surface data into variable groove finite element grid node data, further program and read the node data, and finally obtain the automatic Process the three-dimensional space movement coordinate data of the plasma gun, and finally realize the automatic processing of the variable groove. The specific process is as follows:

[0033] 1. Obtain the model information of the joint surface of the rib plate and the curved outer plate. Import the 3D model of the rib plate and the outer plate designed by the shipyard into the 3D system, and extract the joint surfaces of the two (such as figure 1 shown). This process can be realized by the 3D design software Catia.

[0034] 2. Obtain the variable bevel cutting surface. Input the groove angle θ and the groove edge distance t, and use the cha...

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Abstract

The invention discloses a method for quickly obtaining coordinate data of automatic heat cutting movement of a variable groove of a hull curve plate. By combining with the functions of a three-dimensional CAD (computer-aided design) system and a finite element mesh dividing software tool Hypermesh, the method specifically comprises the following steps of 1, importing a three-dimensional CAD model, and intercepting a rib and hull curve plate intersection curve model; 2, obtaining a three-dimensional model of the variable groove by a chamfer algorithm which is determined by distance and angle; 3, exporting the three-dimensonal CAD model as iges standard geometric template data; 4, importing the generated iges model into the Hypermesh, and dividing the meshes of the cutting curve of the variable groove by a quadrilateral mesh algorithm; 5, marking the cutting data mesh nodes of the variable groove; 6, outputting the mesh node data of the variable groove, programming and reading the curve mesh node data of the variable groove, and converting into the space movement coordinate data of automatic processing. The method has the beneficial effects that 1, the data obtaining process is simple, and the popularization is easy; 2, the artificial calculation is avoided, the obtaining speed of cutting coordinate data is high, and the efficiency is improved.

Description

technical field [0001] The invention relates to a welding process improvement for the bevel processing process of a hull curved plate, and more specifically relates to a method for obtaining numerical control parameters in the automatic processing process of variable bevels. Background technique [0002] In the variable groove processing of the hull curved plate, the traditional method mostly uses manual cutting. This method is difficult to control the follow-up angle and groove accuracy of the variable groove cutting, and the cutting workload is heavy and the working conditions are difficult. In order to replace manual work and realize automatic plasma thermal cutting with variable grooves, the key problem is to obtain the dynamic movement trajectory and pose coordinate data of the plasma cutting torch during the automatic processing of variable grooves. At present, the manual formula calculation method is mainly used. The calculation process is cumbersome and error-prone. ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/15
Inventor 王瑄胡广旭窦钧孟梅王义新刘闽东陶毅
Owner DALIAN SHIPBUILDING IND
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