Icon Technologies, a division of Hydromat, offers the Icon 6-150 multi-station turn-mill, which features four machining stations and two dedicated loading/unloading stations to increase flexibility. The six-position table shuttles pallets to four machining modules for fast, ultra-precision cutting, the company says.
Each of the four machining modules is equipped with one cartridge-style motor spindle. Each spindle type is selected based on the type of cutting to be performed at that station. High-torque spindles are available in 10,000-, 20,000-, 42,000- and 60,000-rpm configurations. They are air-purged and liquid cooled, or permanently grease lubricated, making them virtually maintenance-free, the company says.
The turn-mill is equipped with four servo-driven, direct-drive, B-axis motors. The B-axis motors are installed on stations two, three, five and six and have a position accuracy of ±4 sec. Each table is equipped with a zero-point clamping system designed to securely clamp the base pallet to the B-axis motors. The positional repeatability of these pallets is 0.002 mm.
An optional, 350-Nm disc brake can be added for precise positioning during heavy cutting at an elevated level of force. Stations one and four are designed for loading, unloading, gaging, A/B loading and inverting for sixth-side machining.
The four cutting stations enable five-sided machining with four-axis interpolation; six sides if the idle station is used for workpiece inversion. Each unit is equipped with its own HSK E40 size, 12-tool changer for maximum tooling flexibility. HSK E32 size is available as an option.
An additional, heavy-cutting B-axis motor type is also offered for profile machining using the fourth axis. With a more stout design, it contains a rigid profiling capability with increased torque. Power is driven through a zero-backlash, worm-drive gearbox, rather than the direct drive of the standard B-axis motor.
The 6-150 can also be equipped with an optional fifth-axis machining unit that features a high-speed integrated direct-drive motor spindle, making it well-suited for medical applications and the production of aerospace, hydraulic, automotive and other precision-machined parts, the company says.
Workpieces are mounted by hand or by robotics on pallets that are transferred to each station by the rotary table. At each of the four machining stations the B-axis motors engage with the pallets for indexing or turning the workpieces. The part sizes can range to as much as 150 mm in diameter and the height is dependent on part configuration, workholding and cutting force requirements.
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