Novel circular tube slitting mill

Abstract

The invention discloses a novel circular-section tube slitting mill comprising transmission members respectively arranged on a transmission shaft and transmission members which are correspond to a disk shaft and connected with rotable loops located thereon. A hobbing device is arranged inside a radial sliding chute of the disk head face of the disk shaft, wherein, the hobbing device is provided with an internal circle that is a cam ring, and an external circle is a rotatable loop hobbing a bull gear and is installed on the external circle ring of the disk of the disk shaft; the rotatable loop, disk shaft and a stander are provided with a start-and-retract control device; and a clamping device is installed at the tubular product feeding end of the stander. As the rotatable loop directly rotates along the external circle of the disk shaft, the axial size is reduced, the stress condition is obviously improved and the vibration is avoided; as the start-and-retract control device is provided, accurate slitting moment of cluster is guaranteed at the time of starting, and start impact is avoided; when the hobbing device retracts, the device stops at a maximum retracting position of the cam ring; meanwhile, the clamping device is added and installed, thereby improving the stability and centering reliability for clamping tubular products.

Description

technical field [0001] The present invention relates to a kind of pipe cutting equipment, in particular to a new type of round pipe rolling cutting machine, which can effectively reduce the eccentric vibration tendency of the rolling cutting mechanism, overcome the starting impact, improve the accuracy of the retracting time and the reliability of clamping and centering sex. Background technique [0002] At present, the hobbing machine used for cutting circular cross-section pipes or cutting pipes on the round pipe production line, when the pipe is not allowed to rotate, the hob must revolve around the center of the pipe, and at the same time the hob rolls along the pipe surface and moves toward the center Movement, to achieve the purpose of cutting off the pipe. [0003] For the above-mentioned technology for cutting circular section pipes, such as the Chinese invention patent, its application number is "Circular Section Pipe Rolling Cutting Machine" disclosed in 200610012...

AI Technical Summary

Problems solved by technology

After in-depth research, the inventors of the present invention have proposed solutions to the long cantilever of the rotary hobbing mechanism, the impact generated when starting, the separation time of the clutch is not easy to control, and the hobbing device stops relative to the inner cam after the knife is retracted. The position is not accurate enough, and the solution to the problems of the clamping center of the clamping device and the centering of the hobbing center is difficult, and the present invention is completed on this basis

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