Higher spindle speeds for driven tooling offered

CNC mill-turn centre has a swivelling motorised milling spindle that can be specified at 20,000 or 24,000 rev/min and also rapid traverse speeds have been increased.

Based on the motorised milling spindle of the turn mill center G250, Index now offers the same option for the G160 series.

Supplemented by a motorised milling spindle, 20,000 rev/min (grease lubrication) and 24,000 rev/min (oil/air lubrication) are available.

A considerable increase of rates is not only due to these speeds but also to the high-level rapid traverses.

The most prominent feature, however, is the motorised milling spindle which is designed as a swiveling unit.

This means that, in addition to the standard tool carriers with X-, Y- and 360 deg B-axis, the G160 is now equipped with an A-axis as well.

Thus, Y-machining could be measurably extended with the G160.

Even off-center drillings outside the Y-travel of the machine can now be achieved due to the inclination of the motor milling spindle (A-axis).

With the modular product design, INDEX leaves nothing to be desired as regards the diversity of variants.

Two quill turrets can be moved variably in Z- and X-direction.

With the additional milling spindle plus the 360 deg B-axis, it is thus possible that three tools are operative at the same time for machining the workpiece.

* Tool holders - the tool magazines of the motor milling spindle are aligned as disk magazines with 32 tools each above the main spindle and above the counter spindle.

When you add the tools in the tool turrets to these 64 holders, you will see that the number of available tools leaves not much to be desired in this segment.

* Functional principle - the functional principle of the turn mill center is based on well-tested technology.

The working spindle is designed as an air-cooled hollow shaft motor.

The counter spindle, which is identical to the main spindle, moves on the lower guide.

But now it is also possible to add a compound slide or a slide unit with steady to the same guide.

This unit can then be moved on the Z-guide or on a separate drive in X-direction.

Of course, it is also possible to use an NC tailstock instead of the counter spindle.

The thrust is determined via the program.

* Workpiece handling - a 4 x 90 deg pivoted gripping arm has been developed for the workpiece handling of chuck parts (WHU) and shafts (WHW).

As a standard, this workpiece handling can be controlled via the CNC program.

Thus it is possible to load/unload workpieces with diameters of 150mm maximum and weights of 2 x 10kg with both systems.

In addition, axis speed and acceleration rates have been increased.

As these modules are identical, apart from the gripper, a conversion from WHU to WHW is possible at any time.

That is where the G160 sets the standards: * Main and counter spindle with the same design and power.

* 5-axis interpolation for the machining of the most complex contours.

* Off-center cross drilling and machining of big work pieces possible due to an extension of the Y-travel/inclination of the motor milling spindle (A-axis).

* Three tools can be operative simultaneously.

* Milling spindle with 360 deg B-axis.

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