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A coaxial powder feeding device for 3D printing metal workpieces

A technology of coaxial powder feeding and 3D printing, applied in the direction of improving process efficiency, additive processing, improving energy efficiency, etc., to achieve the effect of improving molding quality

Active Publication Date: 2018-03-23
杨沛恩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a coaxial powder feeding device for 3D printing metal workpieces, which can solve the problem that the powder cannot be well focused to the laser focus in the prior art

Method used

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  • A coaxial powder feeding device for 3D printing metal workpieces
  • A coaxial powder feeding device for 3D printing metal workpieces
  • A coaxial powder feeding device for 3D printing metal workpieces

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Embodiment Construction

[0029] Please see attached figure 1 , the present invention provides a schematic diagram of an embodiment of a coaxial powder feeding device, including a lens assembly, including a lens holder 301 and a condenser lens 302 horizontally installed on the lens holder. The function of the condenser lens is to conduct laser beam focus. Below the lens assembly is the powder feeding assembly. The function of the powder feeding assembly is to convey the metal powder. The metal powder is focused on the focal point of the focused beam, and then undergoes rapid melting and solidification to complete the 3D printing process of the metal workpiece.

[0030] In one embodiment, the powder feeding assembly includes a vertical cylinder assembly 401 in order from top to bottom, and the cylinder assembly is composed of an inner cylinder wall 401a and an outer cylinder wall 401b. The space is connected with the powder conveying pipeline 401c, and the metal powder is conveyed from the powder conve...

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Abstract

The invention discloses a coaxial powder feeding device for 3D printing metal workpieces, comprising: a lens assembly, including a lens bracket and a lens installed on the lens bracket; a powder feeding assembly arranged under the lens assembly, the The powder feeding assembly includes, from top to bottom, a vertical cylinder assembly, a first circular arc assembly connected to the cylinder assembly, and a first cone assembly connected to the first circular arc assembly. The first cone component includes an inner movable support plate and an outer movable support plate, and a powder guide groove is processed on the inner wall of the outer movable support plate; a cooling water chamber assembly is arranged outside the powder feeding assembly. Compared with the prior art, the coaxial powder feeding device provided by the present invention is equipped with a powder diversion groove inside the outer movable support plate of the cone assembly, which can more conveniently focus the powder to the laser processing center, thereby improving the accuracy of the workpiece. molding quality.

Description

technical field [0001] The invention relates to devices in the field of rapid manufacturing, in particular to a coaxial powder feeding device for 3D printing metal workpieces. Background technique [0002] 3D printers (3D Printers), also known as three-dimensional printers, are a kind of cumulative manufacturing technology, that is, a machine of rapid prototyping technology. It is based on a digital model file, using special wax, powdered metal or plastic, etc. Composite materials, which create three-dimensional objects by printing layers of adhesive materials. 3D printers are composed of control components, mechanical components, print heads, consumables and media. Before printing, first model and design a complete three-dimensional model in the computer, and then print it out. Since objects of any shape can be directly generated from computer graphics data without machining or molds, the production cycle of products is greatly shortened and production efficiency is impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y30/00
CPCB22F3/003B33Y30/00B22F10/00B22F12/44B22F12/49B22F10/25B22F12/57B22F12/20B22F12/53Y02P10/25
Inventor 杨沛恩
Owner 杨沛恩
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