A forming device for pipe embryo and a processing method

By combining the die, punch, and pressure head of the tube blank forming device, the processing of irregularly shaped bent tubes is simplified, solving the problems of complex processes and complex mold design in the existing technology, and forming an efficient one-piece molded irregularly shaped tube.

CN122425109APending Publication Date: 2026-07-21COMMERCIAL AIRCRAFT CORP OF CHINA LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
COMMERCIAL AIRCRAFT CORP OF CHINA LTD
Filing Date
2026-06-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies for processing irregularly shaped curved pipe fittings suffer from problems such as complex processes, complex mold designs, and reduced strength at weld joints, especially in the processing of small and medium-sized conduits.

Method used

A tube blank forming device is used, including a die, a punch and a pressure head. Through the cooperation of the mold cavity of the die and the deformation section of the punch with the mandrel, the tube blank is plastically deformed to form a curved special-shaped tube, eliminating the intermediate welding process.

Benefits of technology

It simplifies the processing, expands the applicability of the mold, enables the processing of pipes of different shapes, and forms one-piece molded parts, thus avoiding the decrease in strength at the weld joint.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of pipe forming, and particularly discloses a forming device for a pipe embryo and a processing method, which comprises a female die, a male die and a pressing head. The female die is provided with a model cavity, and the model cavity comprises a die mouth and a supporting mouth; the die mouth is used for placing the pipe embryo; a deformation section of the male die is inserted into the supporting mouth, the deformation section can be deformed along the trend of the model cavity, a core rod can be deformed along the trend of the model cavity, the core rod is inserted into the package and used for supporting the deformation section of the package, one end of the pipe embryo can be sleeved on the deformation section and clamped between the package and the inner side wall of the model cavity in the radial direction, the base is detachably connected with the female die and used for fixing the core rod and the package in the model cavity; and the pressing head is used for pushing the pipe embryo in the model cavity to move to one side of the male die. In this way, since the male die can be adaptively deformed along the trend of the model cavity, the application range is relatively large, and the structure is relatively simple and convenient to operate.
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