A steel pipe nozzle grinding machine

Abstract

The invention provides a grinding machine for steel pipe orifices. The grinding machine comprises a spiral push-puller, a push-pull opening and closing bracket and a rotary wheel orifice grinding machine. The spiral push-puller comprises an integrated rack, a push-pull threaded rod and a telescopic screw tube. The push-pull threaded rod is arranged in an inner cavity of the integrated rack and is provided with a control rotary wheel. The push-pull opening and closing bracket comprises moving pipe-jacking supports and locating pipe-jacking supports, wherein the moving pipe-jacking supports and the locating pipe-jacking supports are arranged at the end of the integrated rack and the ends of the telescopic screw tube respectively. The rotary wheel orifice grinding machine comprises a rotary wheel grinding machine base and clamping grinding machines. The outer circle of the integrated rack is sleeved with the rotary wheel grinding machine base, and a rotary wheel driving motor and a pipe type grinding machine base are arranged on the rotary wheel grinding machine base. The grinding machine can be firmly erected at the centers of the steel pipe orifices with various pipe diameters, the multiple clamping grinding machines encircle the pipe orifices to carry out grinding simultaneously, the steel pipe orifices can be rapidly machined to beveled edges, the edge openings of the beveled edges are flush, and the gradients of the beveled edges are consistent; moreover, the accident that people are injured by steel slag and a mould will not occur. Therefore, the grinding machine for the steel pipe orifices is reasonable in structure, easy to operate and control and capable of improving production efficiency and preventing human injuries.

Description

technical field [0001] The invention belongs to mechanical processing equipment, in particular to a mechanical equipment for grinding the mouth of a steel pipe into a bevel. Background technique [0002] In order to make the welding joint better, the iron oxide, dirt and slag at the pipe mouth must be cleaned until the metallic luster is exposed before welding can be performed. Welding can only be carried out after the nozzle of the pipe is processed into a groove, otherwise there will be problems of impenetrable welding and low welding strength. At present, the nozzles of some steel pipes on the market have been processed into grooves when they leave the factory. However, different welding processes have different requirements for the groove form, and the steel pipes are often cut off and repiped according to the installation conditions, so most of the steel pipes The grooves are all processed at the installation site. During specific implementation, skilled workers have t...

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Problems solved by technology

[0003] In order to solve the problems of low efficiency and easy personal accidents in processing steel pipe grooves at the installation site, the present invention aims to provide a steel pipe nozzle grinding machine, which can be assembled in the nozzles of steel pipes with various diameters, and automatically grinds the steel pipe grooves , which can not only shorten the time for processing the groove, but also prevent accidents caused by steel slag and abrasive tools

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