Equipment for machining, especially for cutting tubular or circular cross-sections

Abstract

A device (100) for machining tubular or round rod type parts, wherein the device comprises a frame element (102), a machining unit (104) and a threaded shaft (110) with Fitted in a rotatable and axially fixed manner on the frame element and having a first part (110a) provided with a right-hand thread and a second part (110b) provided with a left-hand thread. The first part is provided with at least one first support element (106a), the second part is provided with at least one second support element (106b), the mutual distance between the support elements being adjustable in response to the rotation of the threaded shaft, so that all The aforementioned support elements, such as wheels, are used to contact the workpiece and to support and guide the device (100) when machining the part. At least one of the support elements (eg wheels) (106a, 106b) is adapted to be rotatable relative to its axis in response to movement of the device along the workpiece surface.

Description

technical field [0001] The invention relates to a device for machining (in particular for cutting, but also scoring and / or bevelling) tubular or round rod type parts. Background technique [0002] Various tools are known from the prior art for machining (for example for cutting or milling) tubular or round bar type parts, or beveling the part at its end. One example tool of the prior art is an angle grinder, which includes a rotating disc for cutting parts. The rotary disc can also be used to bevel the ends of parts. [0003] However, the problem with these tools is, for example, how to produce a straight cutting result across the entire pipe, i.e. how to make the end point exactly coincide with the start point as the cutting tool advances along the pipe surface, without the operator having to perform any corrective actions, e.g. very close to the end (thus creating a bend in the cut line). Another problem with the existing known devices is that there are no supports, mak...

AI Technical Summary

Problems solved by technology

This necessarily requires that the frame of the clamping mechanism must have a length slightly in excess of 1000mm when machining a part of, say, 1000mm diameter, so that the device becomes rather bulky and heavy, thus difficult to handle and often dangerous because the device does not Again suitable for stable manual operation

In fact, there are already options in the prior art to use multiple sizes of equipment for parts of different diameters, which is of course expensive since it requires at least two or three different sizes of equipment parts

[0006] On the other hand, when machining thin-walled parts, such as thin-walled spiral welded pipes, the clamping mechanism tightened around the part may compress the part, changing its shape, thus making it difficult to produce straight cut results , or even impossible

[0007] Furthermore, adjusting the machining or cutting depth to an optimum is a difficult operation in prior art equipment

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