Device for machining inner hole of pipe fitting

Abstract

The invention discloses a device for machining an inner hole of a pipe fitting. The device comprises a frame, a screw rod, a belt pulley, a head frame assembly, a middle frame assembly, a supporting assembly, a tail frame assembly, a cutting blade, an extrusion roller, a cutter bar, a ball screw and a feeding motor, wherein a bearing is arranged at the top end of one side of the frame to support the screw rod in a rotating mode; the head frame assembly comprises a head frame box body, a first nut seat, a first nut, an oil inlet pipe, a brake rotating shaft, a cylinder tail pin, a cylinder, a knuckle bearing, a brake pad and a brake arm; the middle frame assembly comprises a middle frame box body, a hydraulic cylinder body, a hydraulic cylinder piston, a piston sealing ring, a first oil hole, a second oil hole, a cylinder body sealing ring and a cylinder cover sealing ring; one ends, adjacent to each other, of the headstock box body and the hydraulic cylinder piston are separately and oppositely provided with positioning taper sleeves for clamping steel pipes; the supporting assembly comprises an outer ring, an inner ring and an adjusting gland; the tail frame assembly comprises a tail frame box body and a second nut seat; and a main shaft is arranged in the tail frame box body in a penetrating mode through the bearing.

Description

Technical field [0001] The invention relates to the technical field of inner hole processing, in particular to a pipe inner hole processing equipment. Background technique [0002] With the development of our country’s economy, our country’s industry has become more and more developed. Under the large demand for various parts, many processing equipments have been produced, including long pipe inner hole processing equipment, but traditional processing When the equipment processes the inner hole of the pipe fitting, it is a single cutting process or internal grinding process. On the one hand, the processing efficiency and the surface finish of the inner hole cannot be well balanced, and the clamping is in the form of external clamping. For products in a long tube, an intermediate auxiliary support frame needs to be added. The adjustment of the concentricity between the product and the processing rotation center is time-consuming and laborious; the production efficiency is low, the...

AI Technical Summary

Problems solved by technology

[0002] With the development of our country's economy, our country's industry is becoming more and more developed. Under the large demand for various parts, a lot of processing equipment has been produced, including long pipe inner hole processing equipment, but the traditional processing When the equipment processes the inner hole of the pipe fitting, it is a single cutting process or internal grinding process. On the one hand, the processing efficiency and the surface finish of the inner hole cannot be well balanced. The external clamping method is used when clamping. For products in long tubes, it is necessary to add an intermediate auxiliary support frame, and the adjustment of the concentricity between the product and the processing rotation center is time-consuming and laborious; the production efficiency is low, the degree of automation is low, and the production cost is high.

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