A bending device for steel pipe processing

By designing a bending frame and supporting components, the problems of inaccurate bending and low safety in steel pipe processing were solved, achieving high-precision and safe steel pipe bending results.

CN224508137UActive Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-08-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing bending devices for steel pipe processing are prone to deformation, wrinkling, or cracking during bending, especially for thin-walled steel pipes, which have a low finished product qualification rate and are prone to displacement during bending, posing a safety hazard.

Method used

A bending device for steel pipe processing, comprising a bending frame, a bending assembly, and a support assembly, was designed. The bending position and the support position are adjusted by the cooperation of an electrically controlled lead screw and a hydraulic spindle. The stability and safety of the steel pipe are ensured by fixing bolts and protective stops. After the bending bottom die and the upper die are closed, the internal cavity is the same as the diameter of the steel pipe for limiting extrusion.

Benefits of technology

This improves the accuracy and safety of steel pipe bending, avoids deformation and dislocation of the steel pipe at the bend, and ensures the finished product quality and operational safety of the steel pipe.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a bending device for steel pipe processing, relating to the field of steel pipe processing technology. It includes a bending frame, with a bending assembly on the upper side of the bending frame. The bending assembly includes an adjusting groove at the center of the bending frame surface, a supporting slide on the upper side of the adjusting groove, a bending bottom mold mounted on the top of the supporting slide, a bending carriage on the rear side of the bending frame, a hydraulic spindle on the front of the top of the bending carriage, a connecting top frame mounted on the bottom of the hydraulic spindle, and a bending upper mold mounted on the bottom of the connecting top frame. The bending bottom mold can be fastened to the supporting slide by fixing bolts, facilitating quick installation and disassembly of the bending bottom mold. When the steel pipe is bent, the diameter of the internal cavity after the bending bottom mold and the bending upper mold are closed is the same as the diameter of the steel pipe, thereby limiting and compressing the deformation of the steel pipe, allowing the steel pipe to better maintain its original shape and preventing severe deformation at the bending point.
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