An array type laser rotation printing additive manufacturing equipment and printing method

Abstract

The invention discloses an array type laser rotary printing additive manufacturing equipment and a printing method, comprising: a circular rotary printing platform that rotates around a central axis and a machine fixed platform arranged above it, and the machine fixed platform is provided with Printing unit; the outer support plate is arranged on the fixed platform of the machine and forms a printing cavity with the rotating printing platform and the fixed platform of the machine; the outer wall baffle is arranged between the rotating printing platform and the fixed platform of the machine and is fixed on the outer surface of the rotating printing platform diameter, and extend upward along the circumference of the rotary printing platform; the printing unit includes a laser window and a lifting slide table; multiple groups of lasers are arranged in an array on the laser window. The printing and additive manufacturing equipment of the present invention adopts multiple sets of laser arrays arranged on the laser window for the circular rotary parts. The whole printing process only needs to control the rotation of the rotary printing platform and the up and down movement of the lifting slide table, which improves the processing efficiency. And the galvanometer part of the traditional 3D laser optical path is simplified.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to an array type laser rotation printing additive manufacturing equipment and a printing method thereof. Background technique [0002] As an additive manufacturing technology, laser printing has high printing accuracy and printing speed, and the materials are applicable to a wide range. Compared with traditional processing methods, 3D printers have the advantages of saving processing raw materials and eliminating the need for post-processing of processing waste. Laser sintering uses the principle of layering and superposition to decompose the model into planes, and use powder as raw material to stack the planes into a three-dimensional model. Since the raw materials can be reused during the sintering process, it has good processing economy. [0003] The traditional laser 3D printer mainly consists of a frame, a working cavity, a gas detection device, a he...

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Problems solved by technology

[0004] Due to the small molding chamber of traditional 3D printing equipment, it is difficult to adapt to the large-scale requirements of modern industry, and most of the laser heads of existing 3D printers use the galvanometer structure to control the 3D printing molding area. This method requires more installation of the galvanometer. High, but also increased equipment investment costs, the existing technology is based on small-size models, printing large-size generally adopts the method of splicing printing, this printing method is applied to the printing of large-size parts, and there are problems such as complicated control and complex mechanisms, especially for Printing rotating bodies above the meter level has the problems of long printing time and low efficiency

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