Forming mold closing device for metal corrugated pipe with Omega-shaped section and corrugated pipe forming device

Abstract

The invention discloses a forming mold closing device for a metal corrugated pipe with an Omega-shaped section, and discloses a forming device. The forming mold closing device for the metal corrugatedpipe with the Omega-shaped section comprises a left half-wave mold closing assembly, a right half-wave mold closing assembly and mold closing movement structures, wherein each mold closing movement structure comprises a radial mold closing driving device, a first sliding mold, a left-right mold closing driving device, a second sliding mold, a pipe pressing semicircular hole and a corrugation halfgroove; the first sliding mold is connected with the moving end of the radial mold closing driving device; the left-right mold closing driving device is connected to the first sliding mold; the moving end of the left-right mold closing driving device drives the second sliding mold to move in the left-right direction; and the corrugation half groove is formed in the end surface of the pipe pressing semicircular hole. One corrugation forming groove for corrugation forming is divided into the two corrugation half grooves, after machining forming, the two corrugation half grooves can be away fromcorrugations from two sides of the corrugations and can not be clamped in concave positions of the corrugations, then a forming mold can be automatically taken down, and the clamping is more convenient.

Description

technical field [0001] The invention relates to the technical field of metal bellows production, in particular to a molding and clamping device for metal bellows with an Ω-shaped cross-section and bellows forming equipment. Background technique [0002] Metal bellows have good flexibility and are widely used in automatic control and measuring instruments, vacuum technology, mechanical industry, electric power industry, transportation, etc. Transportation and atomic energy industry and other fields. [0003] The outer side of the metal bellows is provided with a plurality of annular corrugations at intervals, and there are various types according to the cross-sectional shapes of the corrugations. One of the metal bellows has an Ω-shaped corrugation cross-section. At present, the forming mold used for the corrugated pipe with Ω-shaped cross-section is a clamping strip, which surrounds a plurality of clamping strips at intervals outside the straight tube billet, and then fills...

AI Technical Summary

Problems solved by technology

[0004] The forming mold using the clamping strips needs to clamp the clamping strips on the tube blank at intervals before processing, and the tightening strips need to be removed after forming, but because the two Ω-shaped corrugations are from close to far away The axial direction of the bellows forms a wide-narrow-wide gap. The clamping strip is stuck in the depression between the two Ω-shaped corrugations and cannot be removed directly from the radial direction. It is inconvenient to remove the clamping strip. It takes a long time to set up

In addition, the molding die using the clamping strip can only produce bellows with a fixed number of corrugations in one clamping

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