Plasma zero-groove cutting equipment and method

Abstract

A plasma cutting device without groove and its method is disclosed, which comprises angle-adjusting base, arc girder, ring gear, outer gear, seat ring, bottom cleading, base of cutting torches, inner bearing, inner gear, bushing of cutting torches. The ring gear meshes with the pinion, outer bearing is set in the seat ring, and the ring gear is installed at outer bearing, the arc girder connects with the ring gear, there has an angle adjustment base on the torch base. The inclination angle of cutting torches can be adjusted via turning the angle-regulating handwheel, the ring gear runs by servo motor driving via pinion. At the same time, the arc girder, base of cutting torches, inner bearing, inner gear, bushing of cutting torches, cutting torches and angle-regulating device synchronousely rotate with the ring gear around same axes, the cutting torches can freely rotate in the bearing reverse with ring gear direction, which can release the enlacing force of cable and all sorts of tubes. Advantages: compact structure, simple operation, easy to adjust and without groove.

Description

technical field [0001] The invention belongs to the technical field of numerical control plasma cutting machine equipment manufacturing, in particular to a plasma zero-slope cutting equipment and method, which are suitable for cutting carbon steel and non-ferrous metal plates. Background technique [0002] Using a plasma cutting machine to cut the plate is faster than a flame cutting machine, with better quality and smooth cutting surface. For carbon steel with a thickness of less than 25mm, the plasma cutting speed is 3 to 5 times that of flame cutting. However, there is a serious cutting quality defect in the plasma cutting machine. At present, when using an ordinary plasma cutting machine to cut various metal sheets, the cutting surface of the workpiece is not a right-angled surface, but the cutting surface of the workpiece is a beveled surface with a V-shaped cut. To 90°, there is a certain angle or bevel. This deficiency is an inherent characteristic of plasma cutting t...

AI Technical Summary

Problems solved by technology

However, there is a serious cutting quality defect in the plasma cutting machine. At present, when using an ordinary plasma cutting machine to cut various metal sheets, the cutting surface of the workpiece is not a right-angled surface, but the cutting surface of the workpiece is a beveled surface with a V-shaped cut. To 90°, there is a certain angle or groove. This deficiency is an inherent characteristic of plasma cutting technology and a defect that cannot be overcome by plasma cutting machines. Normal cutting requires that the cutting surface of the cutting workpiece is a vertical surface, and the incision is 90°

In the past, in order to reduce the cutting bevel of parts, it is necessary to improve the quality of the plasma arc—reduce its taper angle, which has high cost and poor stability in improving the performance of the plasma arc, and theoretically, it is impossible to completely eliminate the taper.

In order to eliminate the bevel on the workpiece, manufacturers of plasma cutting machine power supplies are now trying to change the shape of the ion flow and minimize the angle of the bevel. For example, fine plasma cutting machines are such products. Small, but the price is very expensive. This kind of cutting machine is 5-10 times the price of ordinary plasma cutting machines, or even more expensive, and the actual cutting bevel is still about 1.5°-3°

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