Temperature detecting and self-cleaning cooling device for arc fuse wire additive manufacturing

Abstract

The invention relates to a temperature detecting and self-cleaning cooling device for arc fuse wire additive manufacturing. The device comprises a printing device, a printing welding system, a machinetool moving system, a welding gun head, a non-contact type infrared thermometer, a cooling system, a self-cleaning system, and a central control system; the device is simple in structure, the temperature measuring position is accurate, accurate detection and control of interlayer-temperature of overlaying coatings obtained through equal arc additive manufacturing can be achieved, closed loop control is achieved, the forming size precision and quality of the arc additive manufacturing can be improved, the protection and cleaning of the temperature measuring device can be considered, the measuring precision or stability of the temperature measuring device can be ensured, equipment long-term continuous running is ensured while the printing efficiency is improved, in addition, the control over the printing layer temperature of a printing part is considered, the defect of the heat conduction manner and the cooling manner is overcome, a cooling system is used for rapidly cooling to determine continuous operation of a large structural part printing process, the printing intermittent cooling time is greatly shortened, and the printing efficiency is greatly improved.

Description

Technical field [0001] The invention relates to the technical field of arc fuse additive manufacturing, and in particular to a temperature detection and self-cleaning cooling device for arc fuse additive manufacturing. Background technique [0002] The arc fuse additive manufacturing technology is based on the principle of discrete-stacking, driven by the three-dimensional data of parts, and adopts the method of accumulating materials layer by layer to manufacture solid parts. The forming method is a highly integrated product digital design, manufacturing, and analysis, which can not only significantly shorten the R&D cycle and R&D costs, but the more complex the structure and the higher the added value of raw materials, the more obvious the advantages of rapid and efficient forming. Fuse additive manufacturing technology can use one of a variety of arc welding technologies (such as MIG, MAG, TIG, CMT) as a basic technology to perform additive printing of parts and components. It...

AI Technical Summary

Problems solved by technology

However, it does not take into account the protection and cleaning of the infrared temperature measuring device. The molten steel splash is unavoidable in the arc additive manufacturing process. To the test window of the infrared temperature measuring device, thereby polluting the temperature detecting device, and at the same time, a large amount of heat radiation burns the infrared temperature measuring device for a long time, which will affect the strategic accuracy of the infrared temperature measuring device or damage the temperature measuring device, and reduce the printing efficiency at the same time It is not conducive to the long-term temperature operation of arc fuse additive manufacturing equipment

In addition, the device does not consider rapid cooling of the temperature of the printing layer to ensure the continuation of the additive manufacturing process. After each layer is printed, the temperature of the component is very high, and the cooling effect of the heat conduction method decreases significantly with the increase of the heat conduction distance. For example, the patent " Device for Temperature Control in Metal Additive Manufacturing Process" (Application No.: 201711459891.7) lowers the temperature of the printing base to reduce the temperature of the printed part, thus greatly lengthening the cooling time of the printing interval and greatly reducing the printing efficiency

However, although the patent "A Temperature Control Device for Additive Manufacturing" (Application No.: 201810805708.2) uses temperature measuring, cooling, and heating devices, its structure is complex, and they are all concentrated near the welding torch. At the same time, there is no dust removal device, which is extremely vulnerable Damaged by sputtered metal contamination, thus affecting printing efficiency and equipment lifespan

Images