Jinan Jeesun CNC Machinery Co., Ltd

CNC plasma tube cutting machine: New solution for special-shaped pipes

cnc plasma tube cutting machine

New soltion of intersecting cutting of special-shaped pipes by Jeesun cnc plasma tube cutting machine

With the emergence of intersecting structures of special-shaped tubes, including square tube, rectangular tube, spinal tube, multi-sided tube, CNC intersecting cutting of complex special-shaped tubes becomes very common and Jeesun cnc plasma tube cutting machine provide some new solution for the cross-sections of special-shaped tubes, such as round, square, ellipse, triangle, hexagon, diamond, octagonal, spinal canal and semicircular. It is an economical and convenient method. How to use cnc plasma tube cutting machine to realize the intersecting cutting of special-shaped pipe? This article briefly introduces the methods and steps.

1.Machine structure & function

1).Moving axis

The CNC axes are mainly W, A, B, X, Y, Z, X1 and W1 axes, among which, X, X1, Y and Z axes are linear motion axes to carry out positioning and cutting in linear direction; W axis is the moving chuck whiles W1 axis is the fixed chucks that make the pipe rotate around its centerline; A axis is the rotation axis of torch to cut the groove in Y direction; B axis is the rotation axis of the torch for the cutting of pipe groove in X direction. Under the control of control software, the CNC axis coordinate to carry out the cutting of complex curve of pipe. The machine is also equipped with several auxiliary supports which ensure the pipe is relatively horizontal. When rotating, it always rotates around the center of the pipe ( Note: X1 and W1 axes need to be added for 6-axis equipment).

2).Cutting methods

Cutting methods available for the machine are plasma cutting or flame cutting. Most CNC intersecting cutting machines can be equipped with both cutting functions. The suitable cutting method can be selected according to the wall thickness of the pipe. The wall thickness of common special-shaped tubes mostly ranges from 0.6mm to 30mm, and high-power fine plasma cutting can achieve higher cutting speed and cutting quality.
3).Clamping tool

Tooling plays a vital role in the cutting of special-shaped pipes. It can be divided into 2 parts: factory standard tooling, which can help carry out cutting of round pipe, rectangular/square tube, H-beam, etc; customer-made tooling, which help carry out cutting of angle steel, channel steel, special-shaped pipe, etc. The tooling can enable the jaws of chuck to clamp tube for rotation whiles the auxiliary support can support the shaped tube and ensure the shaped tube continuously rotate around the center of chuck and the center line of tube. The chuck tooling and auxiliary support tooling can adopt the same structural idea, that is, the special-shaped tube is converted into a round tube and then rotate. Although the tooling structure seems simple, the efficiency of clamping will directly affect the overall efficiency of the machine. The ingenious tooling design can greatly increase the cutting processing speed.

2.plasma cutting software
The software is divided into programming and control software. The programming software is used to complete the complex curve programming of special-shaped pipes, which does not take up machine time, greatly improving the efficiency of the machine and is easy to manage. Because the software itself has the function of cutting arbitrary complex curves in three-dimensional space and can directly read the machine code provided by the programming software, and thus control the movement of each axis of the machine. Therefore, key point is to how the programming software completes the programming of the complex curve of the special-shaped tube.

This tube cutting machine provides an auxiliary programming system for the intersecting cutting of special-shaped tubes. It discards traditional parametric programming, that is, only specific intersecting patterns can be programmed, and uses three-dimensional node expansion combined with three-dimensional design software such as AUTOCAD and TEKLA to complete the programming work. The programming of this software is very simple, use the ready-made three-dimensional structure design drawings and click the mouse easily to carry out cutting works.

3.Cutting process
The machine code generated by the above programming can be transferred to the machine via local area network or U disk to start cutting. Since the clamping accuracy of the shaped tube and the placement state before cutting directly determine the cutting accuracy of the shaped tube, it is necessary to pay special attention to the above content before processing and complete the placement of the shaped tube strictly according to the position of the initial view.
In summary, in order to adapt to the emerging and increasingly novel intersecting structures of special-shaped tubes, Jeesun cnc plasma tube cutting machine can complete the CNC intersecting cutting of the complex ends and tube holes of the special-shaped tubes, which can replace manual cutting. It is a good choice for steel structure manufacturing enterprises to obtain better cutting efficiency and quality.

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