A metal bellows inner and outer incremental forming device

Abstract

The invention discloses an interior and exterior incremental forming device for a metal corrugated pipe. The interior and exterior incremental forming device for the metal corrugated pipe comprises a forming system and a numerical control device which are connected to a machine tool. The forming system comprises a centering chuck which is connected with a spindle of the machine tool. A mandrel is perpendicularly connected to the center of the centering chuck. A clamping claw is further arranged in the center of the centering chuck. The forming system further comprises a crest interior incremental forming tool wheel and a trough exterior incremental forming tool wheel, wherein a tool rod of the crest interior incremental forming tool wheel is connected with a crest forming cutter rest; a tool rod of the trough exterior incremental forming tool wheel is connected with a trough forming cutter rest; the crest forming cutter rest and the trough forming cutter rest are connected with the numerical control device and arranged on a guide rail of the machine tool; and the trough forming cutter rest is arranged close to the centering chuck relative to the crest forming cutter rest. By means of the interior and exterior incremental forming device for the metal corrugated pipe, the forming quality of the formed metal corrugated pipe can be improved.

Description

technical field [0001] The invention belongs to the technical field of plastic forming equipment for metal pipes, in particular to an internal and external incremental forming device for metal corrugated pipes. Background technique [0002] Metal bellows are widely used in fields such as oil and gas exploration and transportation, construction machinery, aerospace, military defense, and chemical industry due to their light weight, non-magnetic properties, and corrosion resistance. In the field of metal bellows manufacturing, the traditional metal bellows forming methods include welding forming, mechanical bulging and hydraulic bulging, but these methods all have the problem of many steps in the forming process, which is likely to cause quality defects and lead to the output of substandard products. The quality and yield stability of the final formed product cannot be guaranteed. [0003] Incremental forming technology introduces the idea of ​​"layered manufacturing". The en...

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Problems solved by technology

In the field of metal bellows manufacturing, traditional metal bellows forming methods include welding forming, mechanical bulging and hydraulic bulging, but these methods all have the problem of many steps in the forming process, which is likely to cause quality defects and lead to the output of substandard products. Unable to guarantee the stability of final formed product quality and output

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