Stainless steel pipe hydraulic wave expansion die and equipment

Abstract

The invention discloses a stainless steel pipe hydraulic wave expansion die which comprises a connecting rod. One end of the connecting rod is of a stepped shaft structure. The small-diameter end of the end of the connecting rod is sequentially sleeved with a locking nut, a first check block, an expansion ball with elasticity and a second check block from outside to inside. The first check block is sleeved with a wave expansion die body. The second check block is sleeved with an ejector rod sleeve. A groove used for containing corrugation of a corrugated pipe is formed in the hole wall of a center hole of the wave expansion die body. The wave expansion die body is at least formed by fan-shaped subsections through splicing. The invention further discloses equipment adopting the stainless steel pipe hydraulic wave expansion die. The stainless steel pipe hydraulic wave expansion die and the equipment have the beneficial effects that semi-automation of corrugated pipe machining can be achieved, the wave expansion die is simplified, the die is lighter, simpler and faster to replace, continuous machining is achieved, the machining efficiency is improved, the machining cost is reduced, and the labor intensity is relieved.

Description

technical field [0001] The invention relates to the technical field of bellows processing equipment, in particular to a stainless steel tube hydraulic expansion wave mold and equipment. Background technique [0002] In the past, the processing equipment for corrugated pipes was a water-expanding wave expansion machine, and the mold was integrated into a one-time forming mold, such as figure 1 The machining of the corrugations shown is a one-piece mold with eight corrugation cavities, done by water swelling. Depending on the pipe diameter, number of corrugations, and corrugation spacing, different molds need to be prepared. The number of molds is large and difficult to store, because the molds are more complex, the molds are also relatively heavy during use, and the production efficiency of the processing process is low. The replacement of different types of bellows is also very complicated; in the production and processing process, labor intensity is high, production effic...

AI Technical Summary

Problems solved by technology

Too many molds are not easy to store, because the molds are more complicated, the molds are also relatively heavy during use, and the production efficiency in the processing process is low

The replacement of different types of bellows is also very complicated; in the process of production and processing, labor intensity is high, production efficiency is low, continuous processing cannot be realized, and it is not conducive to large-scale, multi-variety processing

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