Two-cabin automatic wire supplementing system and method

Abstract

The invention provides a two-cabin automatic wire supplementing system and method. The two-cabin automatic wire supplementing system is used for electric arc, laser and plasma arc fuse additive manufacturing and comprises a wire feeding cabin and a wire disc cabin which can provide metal wires for the wire feeding cabin. The wire disc cabin comprises a first wire disc cabin body and a second wire disc cabin body which are arranged in parallel. The first wire disc cabin body and the second wire disc cabin body are connected to the wire feeding cabin. A replaceable first wire disc is installed in the first wire disc cabin body. A metal wire is coiled on the first wire disc. A replaceable second wire disc is installed in the second wire disc cabin body. A metal wire is coiled on the second wire disc. The wire feeding cabin is internally provided with a wire feeding machine externally connected with a welding gun connector. A wire feeding selecting device is arranged between the wire feeding machine and the wire disc cabin and selects to feed wire for the wire feeding machine in the first wire disc and the second wire disc so that automatic wire replacing between the first wire disc cabin body and the second wire disc cabin body can be achieved. The method uses the system. According to the two-cabin automatic wire supplementing system and method, materials can be uninterruptedly supplied under the condition that the working atmosphere of a sealed cabin is not damaged.

Description

technical field [0001] The invention relates to the field of metal additive manufacturing, in particular to a two-compartment wire filling process in metal additive manufacturing. Background technique [0002] Metal direct deposition additive manufacturing technology refers to the technology of using a heat source to melt the incoming metal material in an inert atmosphere or vacuum environment, and stacking layers according to a pre-planned path to prepare metal parts. In metal direct deposition additive manufacturing technology, laser or arc additive equipment requires a closed gas protection chamber in order to maintain an inert gas environment, while electron beam additive equipment requires a vacuum chamber. [0003] At present, in the metal direct deposition additive manufacturing technology, the raw materials fed mainly include powder and wire. When wire is used as raw material, the wire usually needs to be wound on the reel. Before the parts are processed, the reel f...

AI Technical Summary

Problems solved by technology

However, the heavy weight of a single reel has the following disadvantages: firstly, the internal space of the equipment needs to be large enough, which is not suitable for small and medium-sized equipment; secondly, when assembling the reel, due to the heavy weight, it must rely on a booster device, which makes the equipment more complicated; in addition, Since the metal wire has a pre-tightening force during winding, the larger the wire reel, the greater the pressure on the inner wire, which is easy to cause the wire to have wave deformation, which seriously affects the stability during forming.

When processing large-scale parts, the weight of the parts reaches several to dozens of wire reels, and the use of open hatches to supplement materials will lead to low efficiency; at the same time, due to the long time for adjusting the atmosphere chamber when changing wires, the temperature during the manufacturing of parts It will reduce the quality of the parts at the junction of front and rear wire replacement, which will increase the difficulty of processing subsequent parts and greatly increase the working time and cost.

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