Surface repairing and shaping device used for metal three-dimensional printing

Abstract

The invention discloses a surface repairing and shaping device used for metal three-dimensional printing. The surface repairing and shaping device comprises a first omni-directional six-degree-of-freedom mechanical arm, an outer shell, a spatial scanning camera device, a processing workpiece, a workpiece lifting tray, a metal three-dimensional printing shaping device and a second omni-directional six-degree-of-freedom mechanical arm. The first omni-directional six-degree-of-freedom mechanical arm and the second omni-directional six-degree-of-freedom mechanical arm are symmetrically arranged on the inner wall of the outer shell. The metal three-dimensional printing shaping device and the spatial scanning camera device are arranged at the tail end positions of the first omni-directional six-degree-of-freedom mechanical arm and the second omni-directional six-degree-of-freedom mechanical arm respectively. The workpiece lifting tray is arranged at the bottom of the outer shell. The processing workpiece is arranged above the workpiece lifting tray. According to the surface repairing and shaping device, surface shaping can be carried out on molten metal during a three-dimensional printing process, and meanwhile by carrying out whole-process monitoring and shooting on the three-dimensional printing process, defect parts are recognized and recorded, and repairing is conducted by using metal three-dimensional printing.

Description

technical field [0001] The invention belongs to the technical field of metal 3D printing, and in particular relates to a surface repairing and shaping device for metal 3D printing. Background technique [0002] 3D printing technology is also called "additive manufacturing" technology (Additive Manufacturing). A process in which materials are stacked, usually layer-by-layer, based on a 3D digital model, as opposed to traditional material removal methods. The first 3D printer was produced in 1984. After nearly 30 years of development, 3D printing technology has gradually become one of the most viable advanced manufacturing technologies. [0003] 3D printing technology uses CAD software to design the three-dimensional solid model of the part, and then according to the specific process requirements, the model is layered and sliced ​​according to a certain thickness, and it is discretized into a series of two-dimensional layers, and then the two-dimensional layer information Pe...

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Problems solved by technology

[0006] In the process of 3D printing in the prior art, the processed molten metal material, due to the surface error caused by the surface tension of the liquid metal or the metal stacking between layers in the 3D printing process, at the same time, because the surface of the molten metal is easily oxidized and deteriorated, Affect the reliability of the processed workpiece, change the properties of the processed material during the processing, or have a certain deviation between the actual processed workpiece and the ideally designed workpiece

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