Internal high pressure forming equipment and method of micro metal T-shaped pipe

Abstract

The invention discloses internal high pressure forming equipment and method of a micro metal T-shaped pipe and relates to the technical field of metal pipe fitting machining. The forming equipment comprises a forming mold, two linearly arranged shaft end feed punches, and a forming end balance punch for limiting the forming height of the T-shaped pipe. The forming mold comprises an upper mold and a lower mold, each of the upper mold and the lower mold is provided with a T-shaped cavity, each shaft end feed punch is connected with one shaft end feed power device, and the forming end balance punch is vertical to the two shaft end feed punches and connected with a forming end balance power device. One of the two shaft end feed punches is provided with a gas channel, the gas channel is connected with a high-pressure gas supply device, and each of the bottom of the upper mold and the top of the lower mold is provided with a heating device. Operation is convenient, the safety performance is high, air pressure internal high pressure forming of the micro metal T-shaped pipe can be achieved under the high temperature condition, the requirements on forming pressure and the requirements on the performance of the equipment are reduced, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of processing metal pipe fittings, in particular to an internal high-pressure forming device for a micrometallic T-shaped pipe and an internal high-pressure forming method for a micrometallic T-shaped pipe. Background technique [0002] In the 1990s, with the continuous development of the trend of miniaturization in the manufacturing field, the demand for micro parts is increasing, especially in micro machinery (Micro machine) and micro electro-mechanical system (Micro electro-mechanical system, MEMS) Among them, the typical application is the production of components for electronic products and medical devices. Two trends in scientific and technological research today are giantization and miniaturization. Among them, miniaturization is highly demanded by the market due to its advantages of mass production, high efficiency, high precision, low cost, and less pollution. At present, micro-forming is mainly d...

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Problems solved by technology

However, if the traditional hydroforming equipment is used for processing and forming under the premise of heating, the high temperature condition will easily lead to accidents such as the combustion of the liquid medium. Therefore, considering the limitation of the ignition point of the internal high-pressure liquid medium, it is not suitable for forming under high temperature conditions. To a certain extent, it limits the development of micro-metallic T-shaped tube forming technology

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