An online partition support method and system for 3D printing of large-size suspended components

Abstract

Provided are an online partition supporting method and system for 3D printing of a large-dimension suspended components. The method comprises the steps that automatic identification is conducted on three-dimension data of large-dimension component models needing to be printed through a partition supporting algorithm; the partition supporting mode is reasonably judged according to the relevant characteristic structures of the component models; and in the printing process of the components, a plurality of independent printing base plates are controlled by a plurality of liftable supporting devices to form a combined integral printing base plate capable of conducting external mechanical supporting on the printed components at the required height, and micro supports needed by the components are printed on the printing base plates according to the requirement of the geometrical characteristic of the printed components for the supports. The system comprises a partition supporting algorithm processing system which is connected with a controller through a data transmission system. The controller is used for controlling the states of the liftable supporting devices, the top ends of the liftable supporting devices are connected with the printing base plates, and the to-be-printed components is disposed on the printing base plate. The online partition supporting method and system for 3D printing of the large-dimension suspended components improve the printing efficiency and quality.

Description

technical field [0001] The invention relates to the technical field of large-scale 3D printing, in particular to an online partition support method and system for 3D printing of large-scale suspended components. Background technique [0002] 3D printing of large-scale components refers to the 3D printing method for large-scale components (usually any latitude dimension in length, height and width is more than 1 meter). The main application fields are large-scale industrial equipment, aerospace and other fields. There are two main methods for the existing large-scale component 3D printing, one is the indirect method, that is, the large-scale component model is divided into multiple small models, and then spliced ​​after printing; the other is the direct method, that is, directly adopt large-scale 3D printing The device performs direct printing of large-scale components. Relatively speaking, the direct method has the advantages of simple process and high degree of integration...

AI Technical Summary

Problems solved by technology

[0003] 1. Since more support structures require more materials, it will cause a great waste of materials and greatly increase the cost. At the same time, the process of printing supports will also increase the printing time of the overall parts and reduce the printing efficiency;

[0004] 2. If there are too many supports for complex components, and the support is usually not a dense structure, it is prone to deformation and detachment, so the dimensional accuracy of the components will be affected by the deformation of the supports;

[0005] 3. After the parts are manufactured, it is necessary to remove the support process. If there are too many support structures, not only the means of removing the supports is cumbersome and time-consuming, but also easily causes damage to the required parts.

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