Internal high pressure forming equipment for pipes

Abstract

The invention discloses internal high pressure forming equipment for pipes. The equipment comprises a mold clamping press, molds, propulsion mechanisms, a propulsion hydraulic supply system, a high-pressure hydraulic supply system, an electrical control cabinet and a console. A lower mold and an upper mold are folded or separated by the molds through a closing device. The propulsion mechanisms arefixed on workbenches correspondingly and distributed on the left and right and front side of the lower mold. The propulsion mechanisms are connected to tubular punches correspondingly. Blind holes are formed in the front ends of the punches of the left and right propulsion mechanisms. Openings are formed in the side walls of the punches and are communicated with the blind holes. The openings areconnected with the high-pressure hydraulic supply system. Openings of right propulsion mechanism are connected with valve bodies. The left and right propulsion mechanisms are used to push the punchestoward or away from ports of pipes to be processed. The front propulsion mechanism is used to apply force on the side wall of the pipes to be processed. The propulsion hydraulic supply system is usedfor the hydraulic supply of the propulsion mechanisms. The high-pressure hydraulic supply system is used to provide high-pressure liquid to the punches. According to the equipment, production cost iseffectively reduced, and pipe forming efficiency and quality are improved.

Description

technical field [0001] The invention relates to the technical field of internal high-pressure hydraulic forming, in particular to an internal high-pressure forming equipment for pipes. Background technique [0002] The tee pipe fittings manufactured by the traditional stamping and welding process are heavy, the material utilization rate is low, the material waste is serious, the strength and rigidity of the parts are poor, the tensile stress on the longitudinal weld is relatively large, and the welding deformation and weld quality are difficult to control. The fatigue strength is difficult to meet the design requirements, and the production process is cumbersome, which cannot meet the needs of some fields such as automobiles and aerospace. [0003] The high-pressure forming technology of three-way pipe fittings uses pipe blanks as raw materials, and applies liquid pressure to the pipe cavity to make it plastically deform in a given mold cavity, and the pipe wall is bonded to...

AI Technical Summary

Problems solved by technology

[0004] However, the existing high-pressure forming equipment for three-way pipe fittings has low forming efficiency, poor quality stability, and low yield, resulting in high production costs and cannot meet the mass production of pipes.

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