High-precision grinding device for inner diameter of metal pipe

Abstract

The invention discloses a high-precision grinding device for the inner diameter of a metal pipe. The high-precision grinding device comprises a feeding mechanism, a compressing mechanism, a grinding mechanism, a dust collecting mechanism and a discharging mechanism; the compressing mechanism comprises a main rack and a plurality of downward-pressing rollers arranged on the main rack; a plurality of rotating roller shafts are arranged on the main rack, and the rotating roller shafts are driven by a first motor and a first belt; a grinding rack is arranged on one side of the main rack, and a feeding belt driven by a belt pulley is arranged on the grinding rack; a grinding seat is fixedly arranged on the feeding belt, and a plurality of grinding motors and a transmission shaft driven by the grinding motors are arranged on the grinding seat; a grinding head is arranged at the tail end of the transmission shaft, and the grinding head is used for grinding the inner diameter of the pipe; andthe dust collecting mechanism is arranged on the side, away from the grinding rack, of the main rack and used for treating chippings generated by grinding. Fully-automatic treatment of feeding, conveying, grinding and discharging can be achieved, a plurality of pipes can be simultaneously ground, and the chippings can be automatically cleared.

Description

technical field [0001] The invention relates to the technical field of metal pipe processing, in particular to a high-precision metal pipe inner diameter grinding device. Background technique [0002] With the development of our country, the requirements for the quality of the inner and outer surfaces of seamless pipes are getting higher and higher. However, in the process of pipe production, there will inevitably be burrs, scratches, and inner wrinkles on the inner surface of the pipes, which seriously affect the production of pipes. quality. Therefore, internal grinding of pipes is an indispensable link in the production and processing of pipes. There are two traditional internal grinding methods: one is the hand-held grinding head mold repairing device for workers, because of its structural reasons, the grinding quality is poor, the production efficiency is low, and it is difficult to grind the inner diameter of longer pipes, and the grinding process The debris and dust...

AI Technical Summary

Problems solved by technology

There are two traditional internal grinding methods: one is the hand-held grinding head mold repairing device for workers, because of its structural reasons, the grinding quality is poor, the production efficiency is low, and it is difficult to grind the inner diameter of longer pipes, and the grinding process The debris and dust in the pipe cannot be treated, which not only pollutes the environment, but also seriously affects the health of the staff; the second is to use the pickling technology on the surface of the pipe, and use the hydrogen bubbles produced by the chemical reaction between the acid and the metal pipe to peel off. It is used to remove oxides and rust. This method makes the surface quality of the pipe difficult to control. Excessive infiltration of hydrogen in the pickling solution into the pipe will cause hydrogen embrittlement, which will affect the physical properties of the pipe. It will also involve environmental pollution and Discharge of waste acid

At present, although people have proposed an internal grinding machine for pipes (such as application number: 201820992018.8), its structure is simple, the pipe cannot be fixed during grinding, and there are problems such as handling grinding debris and loading and unloading, so it cannot be really used to actual production

Images