Pipe fitting inner wall grinding device with variable diameter

Abstract

The invention belongs to the technical field of pipe fitting processing, and particularly discloses a pipe fitting inner wall grinding device with variable diameter. The pipe fitting inner wall grinding device comprises a driving shaft installed at the output end of a power device, a plurality of grinding parts are installed on the outer side wall of the driving shaft, the grinding parts comprisefixing rings, movable rings and a plurality of grinding strips, and wherein the grinding strips are connected between the fixing rings and the movable rings; and the plurality of grinding parts composed of the fixing rings, the movable rings and the grinding strips are arranged on the outer wall of the driving shaft along the axis, and the grinding strips are elastic, bendable and thin-plate-shaped. Through adjusting the distance between the fixing rings and the movable rings, the bending degree of the grinding strips is changed, the grinding radius of the grinding strips is changed, adjustment can be achieved in a targeted mode, thus the flexibility of the pipe fitting inner wall grinding device is higher, the range of application is larger, transmission mechanisms of the pipe fitting inner wall grinding device are all installed in the driving shaft in a concealed mode, space cannot be occupied, working can be conducted in a smaller bore diameter, and the pipe fitting inner wall grinding device is suitable for grinding workpieces with small bore diameter.

Description

technical field [0001] The invention belongs to the technical field of pipe fitting processing, and in particular relates to a variable diameter pipe fitting inner wall grinding device. Background technique [0002] Grinding is a kind of surface modification technology. It generally refers to a processing method that uses rough objects (sandpaper with higher hardness particles, etc.) to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness. [0003] At present, there is a grinding device that can adjust the inner diameter of different pipe fittings, but due to the complicated adjustment mechanism of the device, it is not suitable for small diameter pipe fittings (below 5cm), so there is an urgent need for a variable diameter pipe fitting suitable for small apertures Inner wall grinding device. Contents of the invention [0004] In order to solve the problems raised in the above-mentioned backgro...

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Problems solved by technology

[0003] At present, there is a grinding device that can adjust the inner diameter of different pipe fittings, but due to the complicated adjustment mechanism of the device, it is not suitable for small diameter pipe fittings (below 5cm), so there is an urgent need for a variable diameter pipe fitting suitable for small apertures Inner wall grinding device

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