Adaptive plane layering method based on additive remanufacturing point cloud model

A point cloud model and remanufacturing technology, applied in additive processing, image data processing, instruments, etc., can solve the problems of low efficiency, obvious step effect, and large error of digital model layering algorithm, and achieve a clear and clear process, taking into account Efficiency and precision, the effect of ensuring rapidity

Active Publication Date: 2021-06-18
ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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  • Application Information

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Problems solved by technology

[0006] The invention has positive effects: (1) Aiming at problems such as large error, low efficiency, and obvious step effect of the digital model layering algorithm in the process of additive remanufacturing, the invention provides a direct layering method based on the point cloud model of additive remanufacturing , specifically related to the adaptive plane layering method

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  • Adaptive plane layering method based on additive remanufacturing point cloud model
  • Adaptive plane layering method based on additive remanufacturing point cloud model
  • Adaptive plane layering method based on additive remanufacturing point cloud model

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Embodiment 1

[0011] (Example 1, an adaptive plane layering method based on the additive remanufacturing point cloud model)

[0012] The adaptive plane layering method based on the additive remanufacturing point cloud model of the present embodiment includes the following steps:

[0013] ① Determining the delamination direction: The determination of the delamination direction should not only consider the shape characteristics of the part itself, but also facilitate rapid remanufacturing. The general selection principle is to determine the delamination direction based on the selection principle of minimum stacking height or maximum base area; Priority is set to the Z-axis direction under Base, so before the initial collection of point clouds, the parts should be clamped according to this standard as much as possible. If the Z axis is not the optimal layering direction of the point cloud, the position of the model can be adjusted through human-computer interaction, that is, a series of rotati...

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Abstract

The invention relates to an adaptive plane layering method based on an additively remanufactured point cloud model, comprising the following steps: 1. Determining the layering direction. ②Determine the layer height: traverse the coordinates of the point cloud to get z min and z max , and the difference between the two is used as the layer height. ③Construct the point cloud mapping relationship between layers. ④Define the surface error: Define the surface error to represent the degree of surface difference between the two slices, let =, where is the maximum value of the radial width of the projected point cloud. ⑤ Determine the layer thickness. Based on the adaptive plane layering of the additively remanufactured point cloud model, the maximum radial width of the projected point cloud is used as the surface error, and the adaptive layering height is determined iteratively. The algorithm implementation process is clear and clear, taking into account the efficiency and accuracy. .

Description

technical field [0001] The invention relates to the technical field of additive remanufacturing engineering, in particular to a layering method based on additive remanufacturing point cloud models. Background technique [0002] At present, additive remanufacturing technology is a general term for a series of advanced technologies used to restore the defect size and service performance of damaged zero (component) parts. The process of restoring the size of damaged zero (component) parts and improving their performance is driven by digital models. A discrete-stacking process characterized by Among them, the discrete process is a slicing and layering process whose object is the 3D model of the defective part. Whether the part model is generated in modeling software or constructed by reverse engineering, it must be layered before it can be input into the additive remanufacturing equipment, so the layering method is a key link in the additive remanufacturing process. The layeri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T19/20B33Y50/00
CPCB33Y50/00G06T19/20
Inventor 朱胜王晓明沈灿铎韩国峰陈永星任智强赵阳周超极邱六
Owner ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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