Modified type joint assembly used for polishing inner wall of pipe fitting

Abstract

The invention discloses a modified type joint assembly used for polishing the inner wall of a pipe fitting. The joint assembly comprises a rotating shell, a fastening plate fixed to the center of oneend face of the rotating shell through a threaded nail, a polishing shaft arranged in the center of the end face of the fastening plate, and a polishing head detachably arranged at the tail of the polishing shaft through a screwing part. An installing groove is formed in the center of the rotating shell. A rotating arm is installed in the installing groove. The side face of the rotating arm is provided with multiple recessed cavities. A second rotating rod is arranged at the top end of the rotating arm. The second rotating rod penetrates the top end of the rotating shell and is fixedly connected with the rotating shell through a bearing. A joint plate is fixedly arranged at the top end of the second rotating rod. A ring body groove is formed in the rotating shell. Multiple through holes communicating with the inner side of the ring body groove are formed in the rotating shell. A clamping groove is formed in the portion, connected with the ring body groove, of each through hole.

Description

technical field [0001] The invention relates to the technical field of pipe fitting processing, in particular to an improved joining assembly for polishing the inner wall of pipe fittings. Background technique [0002] In some pipe fittings processing factories, it is often necessary to polish the inner wall of the pipe fittings. The existing polishing devices for the inner wall of pipe fittings generally adopt the mode of fixed connection between the motor and the polishing shaft, but in actual polishing, due to the difference in the material of the pipe fittings, the When encountering hard burrs, the polishing shaft is prone to jamming under the condition of large resistance. Once jamming occurs, it is likely to cause the motor to burn out, which has great limitations. Contents of the invention [0003] The purpose of the present invention is to provide an improved joint assembly for polishing the inner wall of a pipe, so as to solve the problems raised in the above-ment...

AI Technical Summary

Problems solved by technology

[0002] In some pipe fittings processing factories, it is often necessary to polish the inner wall of the pipe fittings. The existing polishing devices for the inner wall of pipe fittings generally adopt the mode of fixed connection between the motor and the polishing shaft. When encountering hard burrs, the polishing shaft is prone to jamming under the condition of large resistance. Once jamming occurs, it is likely to cause the motor to burn out, which has great limitations.

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