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Adaptive plane layering method based on additional material 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 large error, low efficiency, obvious step effect, etc. Efficiency and precision, achieving clear and clear results in the process

Active Publication Date: 2018-05-11
ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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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

Method used

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  • Adaptive plane layering method based on additional material remanufacturing point cloud model
  • Adaptive plane layering method based on additional material remanufacturing point cloud model
  • Adaptive plane layering method based on additional material 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 additional material remanufacturing point cloud model. The method comprises: step one, a layering direction is determined; step two, a layering height is determined; to be specific, traverse of point cloud coordinates is carried out to obtain a zmin and a zmax, difference processing is carried out on the zmin and the zmax to obtain a layering height; step three, an inter-layer point cloud mapping relationship is constructed; step four, a surface error is defined; to be specific, a surface error P is defined to express a surface difference degree between two slices, wherein sigma is equal to Rmax and the Rmax expresses a maximum value a radial width R of a projection point cloud; and step five, a layering thickness is determined. According to the adaptive plane layering method, the maximum value of the radial width R of the projection point cloud is used as a surface error and thus an adaptive layering height is determined by iteration; the algorithm implementation process is clear; and both efficiency and precision are considered.

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 Applications(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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