Pipe no-chip cutting device

Abstract

The invention discloses a pipe no-chip cutting device enabling cut pipes to be directly used in the next working procedure, comprising a fixing seat in which a fixed cutting mold is arranged. One side of the fixing seat is provided with a turning jacket in which an internal and external eccentric turning sleeve is movably arranged; an internal and external eccentric outer mold seat is movably arranged in a fixing sleeve; a rotation stopping pin is arranged between the outer mold seat and the fixing seat; a movable cutting mold matched with the fixed cutting mold is arranged in the outer mold seat; and a core bar penetrates through the movable cutting mold and the fixed cutting mold, no clearance exits among the core bar and the movable cutting mold and the fixed cutting mold, the movable segment of the core bar is positioned in the movable cutting mold, and the fixed segment of the core bar is positioned in the fixed cutting mold. The pipe cut by the device has no burrs, deformation or contraction at the mouth of the pipe and can be directly used in the next working procedure, thereby improving the processing efficiency of the pipe; moreover, the cutting speed is increased to a certain extent; and especially for short pipe cutting, the accuracy of the axial size of the pipe is favorably ensured.

Description

technical field [0001] The invention relates to a pipe material cutting device, in particular to a pipe material chipless cutting device. Background technique [0002] The current chipless cutting devices for pipes mainly include hob cutting devices and punching devices. Compared with traditional saw blade cutting devices, they have the advantages of high processing accuracy and no debris generation. However, the pipe fittings cut by the three hobs in the hob cutting device have a retraction phenomenon, and the pipe ends need to be corrected before they can be used in the next process; The pipe fittings are deformed in the punching direction, and the nozzle is not circumferentially contracted, and the pipe end needs to be corrected before it can be used in the next process. Like this, just make the processing efficiency of whole pipe fitting greatly reduce, and the cutting speed of above-mentioned two kinds of devices is also relatively slow; And when cutting short pipe, th...

AI Technical Summary

Problems solved by technology

However, the pipe fittings cut by the three hobs in the hob cutting device have a retraction phenomenon, and the pipe ends need to be corrected before they can be used in the next process; The pipe fittings are deformed in the punching direction, and the nozzle is not circumferentially contracted, and the pipe end needs to be corrected before it can be used in the next process

In this way, the processing efficiency of the entire pipe is greatly reduced, and the cutting speed of the above two devices is also relatively slow; and when cutting short pipes, it is difficult to ensure the axial dimensional accuracy of the pipe

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