Manufacturing method of mold jacking pipe

Abstract

The invention provides a manufacturing method of a mold jacking pipe. The manufacturing method comprises a pipe head machining step: cutting one end of a first cylinder to be machined into a boss by using a numerical control machine tool, and drilling in the center of the inside of the first cylinder to be machined to form a first through hole, as well as a pipe body machining step, a pipe tail machining step, a component connecting step and a fine grinding step.

Description

technical field [0001] The invention relates to a method for manufacturing a mold jacking pipe. Background technique [0002] The traditional process of manufacturing mold pipe jacking has complicated processing technology: lower cooking, tail grinding, straightening, hot heading, annealing, rough machining of the outer circle of the head, straightening of the effect, rough machining of the outer circle of the rod, drilling, concentric effect, enlarged hole, heat treatment , Straightening, grinding inner hole, outer round neck turning, fine grinding outer round rod warp, fine grinding outer round head warp, end face processing, nitriding treatment, straightening, tail processing, deburring, polishing, inspection, packaging ; The accuracy, appearance and energy consumption of hot heading processing are poor, and one-time drilling makes it difficult to keep the through holes inside the jacking pipe concentric. Contents of the invention [0003] The technical problem to be s...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for manufacturing mold pipe jacking, which solves the complex processing technology required by the traditional process of manufacturing mold pipe jacking: cooking, tail grinding, straightening, hot heading, annealing, and rough machining of the outer circle of the head , Straightening, rough machining of the rod, drilling, concentric effect, enlarged hole, heat treatment, straightening, grinding the inner hole, turning of the outer neck, fine grinding of the outer rod, fine grinding of the outer head, End face processing, nitriding treatment, straightening, tail processing, deburring, polishing, inspection, packaging; the accuracy, appearance, and energy consumption of hot heading processing are poor, and one-time drilling makes it difficult to drill through holes inside the jacking pipe. The problem of maintaining concentricity, the present invention is a three-stage structure, and the pipe head, pipe body and pipe tail of the jacking pipe are connected together by welding, and the first through hole and the second through hole are connected by computer numerical control machine tools. The hole and the third through hole are kept at the same center, the diameters of the first through hole and the second through hole are equal, and the diameter of the third through hole is slightly smaller than the diameter of the first through hole and the second through hole to prevent external oil pollution Waiting for dirt to enter the inside of the pipeline to cause pollution; it only takes 5 minutes to make a finished product, but it takes 2 days according to the traditional manufacturing process, and it also consumes a lot of manpower and material resources, and the product accuracy is extremely poor. The consumption of raw materials is reduced by using the new manufacturing process. 50%, the labor cost has been reduced by 5 times, the delivery speed has been increased by 10 times, and the accuracy, appearance and energy consumption of the product have been greatly improved

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