Metal powder electron beam melting lamination layer shaping workbench z-axis movement system

A technology of electron beam melting and layered molding, which is applied in the direction of transmission boxes, transmission components, transmission devices, etc., can solve the problems of low positioning accuracy, slow response, and self-locking, etc., and achieve high positioning accuracy, reduce vibration, and improve reliability effect

Inactive Publication Date: 2015-07-08
JILIN UNIV
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Problems solved by technology

[0005] The invention provides a z-axis motion system of metal powder electron beam melting lamination forming workbench to solve the problems of low positioning accuracy, slow response, large impact, and inability to self-lock in the existing z-axis motion system of the forming workbench. A z-axis motion system of a molding table with high positioning accuracy, stable motion, and self-locking, which is used for electron beam metal powder lamination melting molding

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  • Metal powder electron beam melting lamination layer shaping workbench z-axis movement system
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  • Metal powder electron beam melting lamination layer shaping workbench z-axis movement system

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Embodiment Construction

[0031] The top of the second stage speed change mechanism 3 is fixedly connected with the support mechanism 1, the first stage speed change mechanism 2 is fixedly connected with the support mechanism 1, the worm wheel 209 of the first stage speed change mechanism 2 and the lower lead screw nut 303 of the second stage speed change mechanism 3 are used key 315 connection;

[0032] The structure of the support mechanism 1 is: the worm gear reducer casing 109 is installed on the upper surface inside the bottom box 101, the four guide sleeves 108 are fixedly connected with the top of the bottom box 101, the ring seat 102 is connected with the bottom box 101 inside the bottom The surface is fixedly connected, and is used to accommodate the lower ends of the four guide posts 107 and the lower end of the lead screw 308. The two guide rails 110 are respectively installed inside the outer casing 103 of the construction box, and the telescopic construction box 105 is slidably connected to...

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Abstract

The invention relates to a metal powder electron beam melting lamination layer shaping workbench z-axis movement system, and belongs to the field of three-dimensional rapid forming and manufacturing. The top of a second-stage speed change mechanism is fixedly connected with a supporting mechanism, a first-stage speed change mechanism is fixedly connected with the supporting mechanism, and a worm gear of the first-stage speed change mechanism is connected with a lower screw nut of the second-stage speed change mechanism through a key. The metal powder electron beam melting lamination layer shaping workbench z-axis movement system has the advantages that the structure is novel; a servo motor, a worm and gear and a ball screw serve as key parts, the transmission accuracy of the whole system is remarkably improved compared with transmission accuracy of an existing transmission system, and therefore powder material and workpiece vibration can be reduced, the manufacturing accuracy of a workpiece is improved, and the system is suitable for high-precision electron beam melting forming systems for manufacturing heavy test pieces.

Description

technical field [0001] The invention belongs to the field of three-dimensional rapid prototyping, and in particular relates to a z-axis motion system of a metal powder electron beam melting lamination forming workbench. Background technique [0002] Electron Beam Melting (Electron Beam Melting, hereinafter referred to as EBM) is a kind of Additive Manufacturing (Additive Manufacturing) technology, or 3D printing based on EBM, which mainly uses electron beams to process powders such as metals or ceramics. Materials are melted layer by layer to build complex geometries and achieve desired properties. Compared with laser beam-based 3D printing, EBM-based powder fusion lamination has many outstanding advantages, such as: high energy conversion efficiency and energy density, no restrictions on the absorptivity and reflectivity of powder materials, and in a vacuum environment There is no influence of contamination on forming etc. It is precisely because of these outstanding adva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/02F16H57/02B22F3/115
CPCB22F3/115F16H37/02F16H57/02F16H2700/00
Inventor 周晓勤侯强
Owner JILIN UNIV
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