Transfer Balancing Machine for Wound Armatures
460 KBTU

Range of application
Measurement and correction of unbalance of armatures of various sizes. Use of the machine in production lines for very high production volumes.

Unbalance correction by milling into the stack (profile/slot milling) in one or two planes.

Design
Six-station machine with fully automatic sequence of operations. Station-to-station transfer and integration with peripheral equipment through integrated rotary transport.

Work-pieces can be delivered to the machine by conveyor or pallet.

Correction methods
Profile milling:
Polar unbalance correction at the correct angle, suitable for most applications.

Polar slot milling:
The milling spindle with twin cutter is displaced axially to shift the effect of the milling operation to the polar direction of the unbalance.

Slot milling:
A variable method for quasi-polar or component correction. High flexibility through employment of single or multiple cutters and adaptation of the component angle.

All correction methods can be used for armatures with inclined or straight stack slots. In addition to material removal by plunge milling, weight removal can be increased by controlled axial cutter advancing.

The balancing unit has a belt-drive with AC servo-motor, precision electro-dynamic vibration sensors and support pedestals with V-block or roller carriages. All work-piece contacting parts are equipped with revolving head stops for fast height and length adjustments. The electronic angle reference sampling system operates extremely accurately and requires no separate reference mark.

Flexible application and easy change over of the correction station as well: its digital controlled milling and positioning equipment operates effectively and accurately, and also permits the desired milling method to be selected. Whether profile milling or slot milling in components, plunge or axial milling, this machine is designed for any processing format.

The transport operates with a lift-and-turn gear and is regulated by a frequency-controlled drive. In a flowing, sine-wave motion the rotors are safely transferred through the stations. This ensures short cycle times with smooth acceleration, and exact positioning. We offer a variety of customized solutions for integration with existing production lines and the sorting of out-of-tolerance rotors.