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A two-dimensional rectangular piece blanking method to solve polygonal plate blanking

A technology for polygonal and rectangular parts, applied in geometric CAD and other directions, can solve the problem of unsuitable polygon raw material plate processing and other problems, and achieve the effect of efficient typesetting, improving utilization rate and reducing consumption

Active Publication Date: 2022-03-11
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Most of these algorithms can only deal with the case where the original raw material sheet is rectangular, and cannot be applied to the processing of polygonal raw material sheets

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  • A two-dimensional rectangular piece blanking method to solve polygonal plate blanking
  • A two-dimensional rectangular piece blanking method to solve polygonal plate blanking
  • A two-dimensional rectangular piece blanking method to solve polygonal plate blanking

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] A two-dimensional rectangular piece blanking method that solves polygonal plate blanking, such as Figure 1 to Figure 8 As shown, there are 2 raw material plates of the A001 model, one is raw material A that has not been used, the length and width are 12 and 12 respectively, and the other is the remaining material B left over from previous processing, the size and shape are as follows figure 2 as shown, figure 2 It is a polygon, take point A as the o...

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Abstract

The invention discloses a two-dimensional rectangular piece blanking method for polygonal plate blanking, which uses the idea of ​​the lower left corner point of the BL algorithm for reference, judges the feasibility of the lower left corner point at the candidate point, and utilizes the longest overlapped side priority strategy Select the optimal solution, the scope of application is not limited to regular rectangular pieces, and it is also applicable to the cutting problem of polygonal raw materials. It solves the problem of difficult solution for the cutting of rectangular pieces of polygonal plates in the process of two-dimensional blanking. Its algorithm is reasonable and efficient. It can efficiently and reasonably typesetting, reduce the consumption of raw material plates, and improve the utilization rate of actual production.

Description

technical field [0001] The invention relates to the field of plate blanking algorithms, in particular to a two-dimensional rectangular piece blanking method for polygonal plate blanking. Background technique [0002] The problem of cutting two-dimensional rectangular parts of polygonal plates is to cut the polygonal plate-shaped original raw material into several rectangular workpieces. Under the premise of meeting the actual production needs, the utilization rate of raw material plates should be improved as much as possible, which is an NP-hard problem. Moreover, the production process will inevitably produce residual material, and the shape of the residual material is mostly irregular or polygonal. How to make full use of the polygonal residual material is a key issue and a difficult research point to improve the utilization rate of raw material plates. Common heuristic algorithms for solving the blanking problem of two-dimensional rectangular parts include: BL algorithm, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/18
Inventor 李小林唐瑶
Owner CHINA UNIV OF MINING & TECH
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