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Vertical machining centre suits moldmakers
A
Haas Automation product story
Edited by the Manufacturingtalk editorial team
Jul 3, 2006
Haas Automation has expanded its line of VMCs designed for the mold making and tool and die industries - a high-performance type provides the accuracy, rigidity and thermal stability required.
Following the success of its VM-2 and VM-3 models, Haas Automation has expanded its line of VMCs designed for the mold making and tool and die industries.
The new large-frame VM-6 is a high-performance VMC that provides the accuracy, rigidity and thermal stability required for high-precision work.
It has 64in x 32in x 30in travels, a 12,000 rev/min spindle driven by a 30HP vector dual-drive system, a 24-pocket side-mount tool changer and a high-speed control with full look-ahead capability.
The VM-6 features massive cast-iron construction, with extensive internal ribbing on the castings to increase rigidity and damp vibrations.
High-precision linear guides on all axes further increase rigidity, while offering low-friction and long-term reliability.
High-speed brushless servos, combined with fine-pitch ballscrews and high-resolution encoders, ensure precise positioning and extreme repeatability.
The VM-6's 40-taper spindle uses a unique inline direct-drive system that couples the motor directly to the spindle to reduce heat, vibration and noise.
This results in smooth, quiet operation and extreme thermal stability.
On-the-fly wye-delta switching provides plenty of low-end torque, as well as high rev/min for high-speed machining.
To further ensure thermal stability, coolant is circulated through the VM-6's head casting to remove heat generated by the spindle.
To prevent radiated heat from affecting the casting, the headstock is insulated and cool air is circulated through the entire assembly.
An electronic thermal-compensation algorithm in the Haas control accurately models ballscrew heating from high-duty cycles and automatically corrects for any expansion that could cause positioning errors.
For maximum fixturing versatility, the VM-6's unique 64in x 28in cast-iron table features standard T-slots in both the X and Y directions, as well as precision dowel-pin bores and an array of drilled and tapped holes.
The table has a 4,000 lb weight capacity.
The VM-6 comes standard with a 24-pocket side-mount tool changer that swaps tools in 2.8s.
Also standard are an automatic chip auger, remote jog handle, automatic air gun, high-speed machining software with look-ahead, hard drive with Ethernet interface, floppy drive, Visual Quick Code probing and expanded program memory to 16MB.
* Haas Automation at IMTS 2006, Chicago, USA, September 6 -13, South Hall, Booth A8000.
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