Hydraulic grooving machine for machining grooves of metal elbows

Abstract

A hydraulic groove rolling machine for processing bent metal pipe grooves comprises a machine frame; a motor and an oil cylinder are arranged in the machine frame; the motor drives a knurl wheel through a main shaft; the oil cylinder drives a press wheel through a press wheel rack; the motor, the main shaft and the knurl wheel are vertically arranged in the machine frame; the knurl wheel and the press wheel are horizontally arranged; the outer wall of the knurl wheel comprises a press groove and a wheel surface, wherein the wheel surface is a tapered wheel surface; a support baffle is arranged below the knurl wheel; and a workpiece is arranged on the support baffle. According to the scheme, the motor, the main shaft and the knurl wheel are vertically arranged up and down in a straight line so as to enable the gravity of the workpiece (a bent pipe) to fall on the support baffle below the knurl wheel, so that during operation, the inner and outer walls of the workpiece are rolled and extruded, the self weight of the bent pipe is overcome; and moreover, the wheel surface of the outer wall of the knurl wheel is designed to be a tapered wheel surface so as to be adapted to the inner and outer arc surfaces at different positions, so that the pipe does not shift during processing, processing precision and quality of the arc surfaces are guaranteed, and an unexpected effect is achieved.

Description

technical field [0001] The invention relates to a hydraulic grooving machine for processing connecting grooves of metal pipes, in particular to a hydraulic grooving machine for processing metal pipe grooves, which belongs to pipeline installation equipment. Background technique [0002] The groove at the head of the metal pipe is machined by rolling grooving, and no sparks will be generated during work. The operation is simple, safe, fast, and low in cost. The first technology to connect with the gas pipeline. The knurling machine drives the knurling wheel with power, and the workpiece to be processed is placed on the knurling wheel. There is a groove on the knurling wheel, and then the knurling wheel drives the workpiece to be processed - the pipe is rotated, and the pressure wheel is installed on the pressure shaft frame. , under the action of the hydraulic mechanism (oil cylinder), the pressure roller frame is pushed to move, the pressure roller slowly pressurizes the ou...

AI Technical Summary

Problems solved by technology

The above method has the disadvantages of troublesome operation, open flame operation, potential safety hazard, low production efficiency, high labor intensity, low product quality, and high processing cost.

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