TPT May 2007

T ube B ending, H ydroforming & E nd- Fo rming

Efficient production of tube figures with complex manufacturing cell

T E C H N O L O G Y

Tracto-Technik GmbH & Co KG, Germany, has recently delivered a complete manufacturing cell for tube bending part fabrication to a German manufacturer of packing systems. The Tracto-Technik product range includes 1-axis controlled, semi-automatic and fully automatic CNC controlled tube bending machines as well as tube end forming machines, tube measuring and inspection systems and software solutions for tube fabrication. This latest manufacturing cell consists of a CNC bending machine and several handling systems, which are optimally coupled and coordinated in terms of control. The basic material (welded steel tubes) is taken out of a large tube rack, separated and precisely aligned in its longitudinal axis.

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Because the position of the welding seam is significant for the bending result, the next working step is carried out by a fully automatic welding seam recognition device with automatic adjustment of the rotational position of the tube. The tube is positioned in the requested angle with the help of this device and fed into the tube bending machine. The CNC bending machine Tubotron 30 MR with multi-radii bending head is the core of the manufacturing cell. A robust construction with high-quality components and the latest Siemens control technique are › The manufacturing cell includes devices for tube storage, separation, welding seam recognition and tube alignment, feeding and unloading devices and the core of the cell, the Tubotron 30 MR CNC tube bending machine

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fi The welding seam recognition device is the basis for the correct alignment of the steel tube before bending

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148

M ay /J une 2007