VMC Capable of Heavy, Difficult Cuts without Sacrificing Accuracy
IMTS 2018: Long known for high-speed, high accuracy vertical machining centers, Chiron has developed a new range of VMCs, in twin and single spindle versions, that add extreme stiffness and greater stability to the package, allowing the machines to take heavy cuts in difficult material while maintaining accuracy.
Share
Long known for high-speed, high accuracy vertical machining centers, Chiron has developed a new range of VMCs, in twin and single spindle versions, that add extreme stiffness and greater stability to the package, allowing the machines to take heavy cuts in difficult material while maintaining accuracy. The DZ16W, with twin 12,000-rpm, HSK63A spindles, is being unveiled in the company’s booth.
The DZ develops 200 Nm of spindle torque and features a high Kv rating (a measure of the stiffness and accuracy of the drive) of 4, 4 and 6 in the X, Y and Z axes, respectively. The machine can easily drive drills to 60 mm diameter and has a milling capability of up to 900 cm3 thanks to heavy depth of cut. Rapid traverse rates range to 600, 600, 1,000 m/sec.2 in the X, Y and Z axes, respectively, with respective acceleration of 12, 12, and 14 m/sec.2.
Workpieces are mounted in two dual-position fixtures, each mounted on trunnions on opposite sides of a rotary work changer, providing the fourth axis. As one pair of workpieces is being machined, the other pair can be loaded manually or with automation from the easy-access front of the machine, losing no production time.
Fast work- and tool-change speed, combined with the 2×80 toolchanger capacity means that the machine can efficiently handle low lot sizes.
A key development for this series is the gantry-style construction rather than a C frame, which provides greater stability for the heavier cuts as well as rapid axis positioning. The base is made of a vibration-damping, highly-stable concrete material that is less sensitive to heat than cast iron or steel weldments. Even during heavy cuts, the machine runs nearly without vibration or noise, according to the company.
Related Content
-
Lean Approach to Automated Machine Tending Delivers Quicker Paths to Success
Almost any shop can automate at least some of its production, even in low-volume, high-mix applications. The key to getting started is finding the simplest solutions that fit your requirements. It helps to work with an automation partner that understands your needs.
-
Inside a CNC-Machined Gothic Monastery in Wyoming
An inside look into the Carmelite Monks of Wyoming, who are combining centuries-old Gothic architectural principles with modern CNC machining to build a monastery in the mountains of Wyoming.
-
How to Mitigate Chatter to Boost Machining Rates
There are usually better solutions to chatter than just reducing the feed rate. Through vibration analysis, the chatter problem can be solved, enabling much higher metal removal rates, better quality and longer tool life.
