A rolling processing device and method for the inner wall surface of a metal pipe

Abstract

The invention discloses a rolling processing device and processing method for the inner wall surface of a metal pipe. A rolling wheel, a connecting shaft and a pressure head are used to form a rolling structure capable of self-rotation and revolution. The rolling wheel is a cone, and one end of the connecting shaft and the pressure head One end of the head is fixedly connected, and multiple rolling wheels are evenly arranged between the connecting shaft and the indenter along the circumference of the connecting shaft axis. By using the surface of the rolling wheel with a cone structure, the inner surface of the metal pipe to be processed can be gradually expanded. At the same time, The connecting shaft and the indenter are used as the rotation support of the rolling head. During the axial feeding process, the rolling head can rotate and roll at the same time, so as to avoid the problem of scratches caused by sliding friction between the rolling head and the inner surface of the pipe. The invention adopts the cone rolling wheel, which can be rolled sequentially, avoiding the large expansion of the inner wall surface of the metal pipe, and has a simple structure, which can realize the mechanical surface processing of the inner wall of the metal pipe and other narrow workpieces, and effectively improve the processing efficiency of such materials , Improve product performance and reduce production energy consumption.

Description

technical field [0001] The invention belongs to the technical field of processing the inner wall surface of metal pipes, and in particular relates to a rolling processing device and method for the inner wall surface of metal pipes. Background technique [0002] Under the action of corrosive media and loads, most of the corrosion and other failures of metal pipes such as oil pipes start from the inner wall, which is very sensitive to the structure and surface properties of the material surface. Surface engineering technology is a surface strengthening treatment process that is widely used to solve such problems. Mechanical surface treatment is a strengthening method that introduces plastic deformation on the metal surface, even produces work hardening, and generates residual compressive stress. At present, in the traditional mechanical surface strengthening treatment such as surface shot peening, laser surface impact and other technologies, the equipment is usually complicate...

AI Technical Summary

Problems solved by technology

Mechanical surface treatment is a strengthening method that introduces plastic deformation on the metal surface, even produces work hardening, and generates residual compressive stress. At present, in the traditional mechanical surface strengthening treatment such as surface shot peening, laser surface impact and other technologies, the equipment is usually complicated and bulky , requires a large operating space, and it is difficult to achieve mechanical surface strengthening treatment on the inner wall of metal pipes, etc., and cannot effectively improve the corrosion resistance of the inner wall of metal pipes

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