September 12, 2006 -
Equipped with dynamic linear drives for linear and rotary axes, Prokos provides workpiece dimensions of 300 x 300 x 300 mm with XYZ-axis feed rates of 120,000, 10,000, and 50,000 mm/min, respectively. Speed stroke grinding keeps heat out of part, allowing grinding of titanium. Machine features 12,000 rpm variable speed motor and GE Fanuc 18i control with color flat screen, menu bars, softkeys, and Windows(TM) GUI. Optional tool-changing system combines grinding, milling, and drilling operations.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
New Blohm Prokos Boosts Productivity 30%, Reduces Wheel Costs
MIAMISBURG, OH - United Grinding unveils an entirely new Blohm profile grinder, the Prokos, at IMTS 2006.
The Prokos is the first machine of its type with dynamic linear drives for both linear and rotary axes, in combination with a high-speed spindle, allowing optimal performance of all operations. The linear motors make the machine up to 30% more productive and reduce wheel consumption more than 20%. An optional tool-changing system increases the flexibility of the Prokos, permitting complete machining of complex workpieces in a single setup by combining grinding, milling and drilling operations.
This added flexibility offers solutions to a wide range of precision machining applications, addressing the needs, for example, of the turbine industry, the machine tool and tooling industries, as well as the bearing industry.
One significant benefit, says Stine, is "speed stroke" grinding in which the machine takes very fast, yet very small cuts, unlike deep creep feed grinding. This effectively keeps the heat out of the part, allowing the grinding of titanium, which until now was deemed impossible.
Relevant specs
The new Blohm Prokos has workpiece dimensions of 300 mm (W) x 300 mm (L) x 300 mm (H). Machine table, 450 mm. X-axis feed rate, 120,000 mm/min. Wheelhead vertical travel, 400 mm. Y-axis feed rate, 10,000 mm/min. Wheelhead cross travel, 900 mm. Z-axis feed rate, 50,000 mm/min. A-axis swivel, 110°. A-axis swivel speed 20 rpm. Grinding spindle drive, 30 kW/2600 rpm. Three-speed variable speed motor, 12,000 rpm. Grinding wheel size, OD 300 x W 20 mm x ID 50 x 76.2.
Control
The GE Fanuc 18i is a robust and user-friendly CNC control. The color flat screen is cleanly arranged for simplified programming with menu bars, softkeys and a Windows(TM) graphic user interface. Setup is fully supported and aided by iconographics, and optional parallel operation permits programs to be entered and optimized during the grinding process. Loop interrupt cycles allow intermediate measurement. Other features include DNC capability and remote diagnostics via modem/phone line.
Although programming on the 18i is fast, easy and straightforward (no sophisticated programming expertise required), complex part geometries and grinding routines can be solved with equal ease and flexibility. Tool management of up to 50 dressing tools or grinding wheels permits quick and simple changeovers. Standard cycles and macros enable fast, simple program generation. Automatic swivel grinding angle calculation can be simulated for all contour dressing operations, eliminating potential collisions during actual dressing.
A user-friendly Siemens 840 D CNC control is also available upon request.
Blohm Maschinenbau GmbH has been building surface and profile grinding machines for more than 50 years. The gold standard for precision, quality and reliability in surface and profile grinding, Blohm has more than 15,000 installations worldwide. Blohm surface and profile grinding machines are supported by an expert team of grinding specialists and a worldwide support and service network.
United Grinding, the North American arm of the Körber-Schleifring Group and supplier of such venerable nameplates as Blohm, EWAG, Jung, Mägerle, Mikrosa, Schaudt, Studer, and Walter, is a global leader in grinding technology and has built a reputation for industry-leading innovation and unparalleled service and support.
For more information, contact United Grinding; 510 Earl Blvd., Miamisburg, OH, 45342. Tel: 937/847-1210. Fax: 937/859-1115; www.grinding.com.
Contacts:
General Information:
Edward P. Sinkora
USA
Phone: 540-710-2408 E-mail this person Company Information: Name: United Grinding Technologies, Inc. Address: 510 Earl Blvd. City: Miamisburg State: OH ZIP: 45342 Country: USA Phone: 937-859-1975 FAX: 937-859-1115 http://www.grinding.com
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