Electric Bender/Cutter aids volume tubular part manufacturing.November 15, 2010 -
As all-electric tube bender with integrated cutter, Breeze-Blade provides automated, single-step manufacturing of volume parts with tubular or pipe shapes. Position and forces of tube bending dies can be controlled along with movement profile and torque applied during nick and shear cutting cycle. Offering programmability throughout entire part fabrication cycle, system offers cutting positions that are accurate and repeatable, from batch to batch, to within ±0.004 in.
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Original Press release
Unison
40473 Brickyard Dr.
Madera, CA, 93638
USA
Integrated All-Electric Tube Bender and Cutter Delivers Competitive Advantage to Volume Tubular Part Manufacturers
integral nick-and-shear provides one-stage production of exhausts, tube/pipe parts etc..
machine believed to be industry's first all-electric tube bender and shear combo
Atlanta GA --- Today, Unison launches an all-electric tube bender with an integrated cutter, providing automated single-step manufacturing of volume parts such as exhausts and tubing or piping shapes. The new machine is believed to be an industry first - bringing the programmability and precision advantages of all-servo-control to the tubular parts manufacturing market.
The machine's all electric, servomotor-controlled architecture gives comprehensive programmability throughout the entire part fabrication cycle. The position and forces of the tube bending dies can be precisely controlled, as can the movement profile and torque applied during the 'nick and shear' cutting cycle - delivering the highest accuracy and quality of shape fabrication and end finish. Servomotor control also ensures that cutting positions are extremely accurate and repeatable from batch to batch, to within +/- 0.004 inch, as tubing remains under control of a high-resolution digital motion architecture throughout the operation. These benefits are in addition to the well-known returns of low energy consumption and quiet operation of all-electric motion control architectures, compared with traditional hydraulically actuated machinery.
After a bending operation, moving the tube to the shear tool position and making the cut takes typically 12-15 seconds. This compares with perhaps 60 seconds - plus the need for skilled labor - that would be required for handling, loading, set-up and cut-off when the same task is performed at a separate station. In addition to these fundamental throughput gains, Unison's new integrated machine means that many manufacturers will also be able to produce multiple parts from each length of tubing, providing another major boost to productivity.
"Integrated bend-and-shear answers the needs of manufacturers of volume parts such as automobile exhausts and tube and pipe component shapes," says Unison's Alan Pickering. "Compared with production processes based on separate bend and cut stages, we believe the time and labor savings will start delivering a payback on an investment after only a very short timescale - down to as little as a few weeks for multi-shift manufacturing companies."
The new machine is called the Breeze-Blade, and is capable of bending and cutting tubing with outside diameters of up to 3 inches. It comes with a multistack (multiple on-machine tooling) facility for software-controlled changeover between parts batches, with the nick and shear tooling loaded into one of the tool positions.
Cut-off is performed in two steps. The bent tube shape is positioned automatically by the machine's servomotor-driven carriage, and a circular clamp grips the tube directly adjacent to the cutting position. The first tool strikes the tube to create a nick that penetrates around two thirds of the way through the tubing wall. The shear blade then drives through the tubing - with control over aspects such as acceleration, speed, deceleration and torque to suit the material and the tubing shape. This highly-controlled action ensures a high quality dimple-free cut with minimal burring. The clamp has been specially designed to ensure that cuts can be made close to a bend - to within approximately 2.4 inches.
The new machine is on display at FABTECH on the booth of Horn Machine Tools - Unison's North American partner.
Horn Machine Tools, 40473 Brickyard Drive, Madera, CA 93638, USA. t: 559-431-4131; sales@hornmachinetools.com; http://www.hornmachinetools.com (Also located in St. Paul, MN, and Indianapolis, IN.)
Unison, Olympian Trading Estate, Cayton Low Road, Scarborough, YO11 3BT, UK
t: +44( 0) 1723 582868; enquiries@unisonltd.com; http://www.unisonltd.com
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