Rotary exchange groove type multi-material mask exposal additive manufacturing device and method

Abstract

The invention discloses a rotary exchange groove type multi-material exposure additive manufacturing device and method. The mask exposal technology is applied by the device to serve as a light-sensitive material forming technology, and meanwhile, a multi-partition rotary type material groove is applied to serve as a supply mechanism for machining different materials. During machining, a plurality of material portions of one part are subject to modeling, and then subject to layer shearing and mask generation treatment; a plurality of mask queues are guided into a control module, and the control module determines whether multiple materials are contained in layers with the same height; if the multiple materials are contained, the layers are subject to multi-material machining, and if the multiple materials are not contained, the layers are subject to single-material machining of corresponding materials; during machining of multiple materials on the same layer and machining of different materials in different layers, the cleaning step of machined parts is automatically executed, and therefore it is ensured that multiple materials are not polluted by one another. Through replacement of material grooves containing different light-sensitive materials and corresponding masks in the machining process, automatic precise machining of the parts containing the multiple different materials is achieved.

Description

technical field [0001] The invention belongs to the field of light-curing molding additive manufacturing within the scope of advanced manufacturing technology. In particular, it relates to a rotating groove-changing multi-material surface exposure additive manufacturing device and method. Background technique [0002] Stereolithography (SLA) is the earliest additive manufacturing technology, that is, the earliest 3D printing technology. This technology has the advantages of high processing precision, a wide variety of machinable materials, and a wide range of applications. This technology manufactures each layer of the part by controlling the exposure path or exposure shape, and solidifies with the previous layer while processing the next layer, and finally forms the part. The surface exposure technology in the photocuring prototype technology can process an entire layer at one time, which has the advantages of high processing efficiency. Among them, the bottom-up surface ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a rotary tank-changing multi-material surface exposure additive manufacturing device and method to solve the problem that photocuring prototype technology is difficult to apply to the field of multi-material processing

The device adopts the form of exposing and curing materials from the bottom to the top. By cooperating with multi-zone rotating material tanks and mask replacement algorithms, and adding automatic cleaning steps, it solves the problem from model design to mask generation in the processing of two materials, and then to Two material processing and cleaning issues

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