Screw type pipe pushing and bending machine

Abstract

The invention provides a crew type pipe pushing and bending machine, belongs to the technical field of press machines, and in particular relates to a pipe pushing type pipe bending machine in which a motor drives a screw (trapezoidal screw thread pair) to make a pressure plate of a press and a mould vertically move and the motor drives a lateral screw (trapezoidal screw thread pair) to push rods. The mould is provided with a plurality of guide posts; the lower end of each guide post is provided with a square hole with a bevel; a plurality of groups of mould taper keys position and lock the mould; and after the mould is reliably pressed and locked, a pipe blank is put into the mould, a quick oil cylinder drives a handpiece to horizontally and quickly move to a front position, two symmetrical taper keys lock the handpiece, a horizontal torque motor and a underdriving gear set drive an integral gear screw nut to make the horizontal screw move horizontally, and the front end part of the horizontal screw pushes the pipe blank. The screw type pipe pushing and bending machine is suitable for pushing and bending pipes of which the outer diameter phi is between 300 and 800mm and the maximum wall thickness is 25mm, and the aims of concise and compact structure, low cost, electric energy conservation, and stable and reliable operation are achieved.

Description

technical field [0001] The invention belongs to the technical field of presses, in particular to a pipe pusher type pipe bending machine in which a motor drives a lead screw (trapezoidal thread pair) to move a press plate and a die vertically, and the motor drives a lateral lead screw (trapezoidal thread pair) to push the pipe . Background technique [0002] The existing push-pipe type pipe bending machine is formed by adding a group of horizontally moving hydraulic oil cylinders on the basis of the existing four-column hydraulic press and frame hydraulic press. Its working principle: the press cylinder of the four-column hydraulic press (or frame hydraulic press) drives the platen and the mold to move vertically (opening and closing the mold); when the press cylinder compresses the mold, the pipe blank is put into the mold, The front ends of the horizontally set hydraulic cylinders push the pipe blank, and the pipe blank is bent and deformed along the curved path of the mo...

AI Technical Summary

Problems solved by technology

The existing push tube bending machine is only suitable for pipe bending operations with an outer diameter of Φ200 or more, pipe bending operations with an outer diameter of Φ200 or more, and thick-walled pipe bending operations with an outer diameter of Φ200 or more. Due to the need to increase the vertical pressure and horizontal pressure, the machine oil cylinder , especially the large bore of the horizontal oil cylinder, resulting in a bulky and heavy machine, high energy consumption, and large non-standard oil cylinders are expensive, greatly increasing the cost of the machine

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