Machine is equipped with:

• Heavily cross-ribbed, cast-iron machine construction.
• Double walled, cast-iron column design.
• Larger diameter precision ground ballscrews for linear slides.
• Direct slide position feedback using precision glass scales.
• Large working range of machine due to long X and Y Axes.
• 20 Kw AC main spindle drive.
• Fidia M2 control.
• 6 axes under CNC (X, Y, Z, A, B, and C).
• Automatic spindle speed change in 3 ranges.
• Hydraulic counter balance of the headstock.
• Backlash free feed drives.
• Anti-friction coated slideways.
• Anti-collision protection between column and table.
• Pendant mounted operator's control station.
• Oil chiller unit for spindle head lubrication system.
• Digital display for all axes, pendant mounted.
• Automatic central lubrication.
• Hydraulic drawbar.
• Machine light.

Noise level transmitted by air La max. = 75 dBA will not be exceeded.

Mechanical Design Data

Single column machine design has large longitudinal, transverse and vertical travels.

Cast-iron, bed-type design with ideal absorption of the cutting forces and workpiece weights by amply dimensioned structure of the individual part of the machine, such as base, column, cross-slide, etc. are important features of the machine.

Precision ground, hardened way bars in the slide movements of longitudinal (X axis), transverse (Y axis) and spindle head carrier travel (Z axis) guarantee a consistent high accuracy.

Anti-friction coated counterway surfaces of longitudinal, transverse and spindle head carrier slides. For their support, 4 symmetrically positioned roller elements on the X and Y axes are provided with variable hydrostatic preloading and are manually adjusted based on the workpiece weight. In some places, roller guiding elements are installed in preloaded narrow slideways.

Special advantages:

• Reduction of static & dynamic friction
• Higher accuracy
• Balanced and adjustable static and dynamic friction resistance depending on workpiece weight
• Faster rapid traverse rates.

NC-rotary table (C-axis) 1800 x 1200 mm (70.86" x 47.25"). Rotary work table from fine grained cast iron (Meehanite). Built-in rotary table worm wheel made from high alloy bronze serves also as a support slideway. In addition, depending on the workpiece weight, adjustable hydrostatic support for relief and improvement of friction conditions is performed. A radial prestressed combined ball bearing guarantees efficient dynamic running condition.

Individual AC servo feed drives are provided for all motions. Drive is effected via infinitely variable permanent magnet AC motors. Drives are maintenance free.

The feed drives of the axes X, Y, Z, A, C, B are made without backlash. This is accomplished by installation of preloaded precision ball and roller bearings, split and preloaded drive gears for the linear drives, and special toothed belts and split preloaded worm-drives for the rotary movements.

Softwired overtravel limit switches protect the machine from inadvertent overtravel. Hardwired switches prevent the servo drives from powering the drives beyond their position and finally rubber-bumper slide limit end stops for each individual slide positions (X, Y, Z axes) protect the machine elements in case of overtravel. The B & C rotary axes are 360 degree continuous axes without "wind-up" or overtravel.

All travel directions both linear and rotary, X, Y, Z, A, C, B are NC-controlled. This permits a highly universal application of the machine. With the workpiece clamped on the rotary table (C axis) on top of the cross slide (X & Y axis), the following machining operations can be performed:

• Machining the workpiece in X and Y axes.
• Circular milling or milling circular sectors of any angle.
• Positioning of the 4 x 90 degrees angle positions.
• Tangent milling and boring.
• The workpiece can be machined on 5 sides in one setup.
• Complete 5 axis contour machining.

The 2 axes, bi-rotary head permits both vertical and horizontal spindle machining on the full table surface. Because of the large throat of the milling head, the lengthy X axis movement of the table and by using the rotary table, both horizontal and vertical machining operations can be executed throughout the work envelope defined by the entire table area.

For 5 axes CAM generated programs using the 2 axes rotary head in combination with the rotary table, programming can place the tool for stock removal anywhere and at any angle in the work zone. Many parts can be completed in just one setup.

Specifications

Metric Inch