A five-axis additive geometric simulation method
A simulation method and geometric technology, applied in the direction of program control, instrument, computer control, etc., can solve the difficulty of five-axis additive simulation algorithm design, failure to solve five-axis additive trajectory simulation, and the difficulty of intersecting and calculating microscopic growth models And other issues
Active Publication Date: 2019-01-18
上海青翼工业软件有限公司
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Problems solved by technology
This method realizes the simulation of the planar three-axis rapid prototyping process, but it has not yet solved the problem of complex five-axis additive trajectory simulation
[0005] The five-axis trajectory motion includes translation, rotation, and translation plus rotation. Among them, translation plus rotation is the main movement. The difficulty in the simulation of the five-axis additive process is that the direction of the tool axis in the five-axis additive trajectory is not fixed, and the trajectory changes. The calculation of the additive model is difficult. Due to the rotation, the tool axis is no longer fixed along the Z-axis direction, and the intersection calculation of the microscopic growth model is difficult, which makes the design of the five-axis additive simulation algorithm difficult.
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Embodiment 1
[0048] This embodiment provides a five-axis additive geometric simulation method, including the following steps:
[0049] Step (1): Establish a microscopic cuboid growth model, such as figure 1 shown;
[0050] Step (2): Optimizing the microscopic cuboid growth model;
[0051] In this step, according to the technological characteristics of additive processing, the microscopic cuboid growth model is optimized. At the corners or corners of the trajectory, if the cuboid growth model is directly used, there will be gaps such as figure 2 As shown, the two ends of the cuboid are optimized into half cylinders, such as image 3 As shown, the optimized growth model is an additive swept volume model.
[0052] Step (3): Obtain the additive processing process model and CLSF, analyze the CLSF file, and obtain the tool position information;
[0053] In this step, according to the additive processing process model input by the user, the laser spot diameter D in the process model and the ...
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The invention discloses a five-shaft additional material geometry simulation method comprising the following steps: 1, building a microscopic cuboid growth model; 2, optimizing the microscopic cuboid growth model according to additional material locus characteristics; 3, obtaining the additional material processing locus in CAM software, parsing the additional material processing locus, and obtaining cutter location point information; 4, interpolating the cutter location points, and calculating a five-shaft additional material scanning body model; 5, converting the additional material scanning body model into a Tri-dexel model; 6, using a triangle patch to display the additional material scanning body model in step 5. The method can realize additional material manufacture geometry simulation, can finish the five-shaft complex locus additional material simulation process, can form the additional material moulding model, and the formed additional material moulding model can serve as an input model in subtract material processing.
Description
technical field [0001] The invention belongs to the technical field of additive processing, and more specifically relates to a five-axis additive geometric simulation method based on a microscopic cuboid growth model. Background technique [0002] Additive processing and manufacturing technology is based on the principle of discrete accumulation, and the technology of manufacturing solid parts through the method of material accumulation. According to the different additive materials used, it is mainly divided into two categories: plastic, metal; ceramics, gypsum, etc. can also be used as raw materials for additive processing; now the main additive technologies include fused deposition type (FDM), direct metal laser sintering ( DMLS), laser engineered net shape (LENS), selective laser sintering (SLS), stereolithography (SLA). [0003] Compared with the earlier subtractive manufacturing technology, additive manufacturing technology lacks mature computer-aided manufacturing (C...
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IPC IPC(8): G05B19/4097
CPCG05B19/4097G05B2219/32339
Inventor 颜昌亚曾雄志吴蜀魏李振瀚张立先
Owner 上海青翼工业软件有限公司