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GBA 202

GBA ohne W-Achse

The GBA 202 is a fully automated thread-cutting tap grinding machine, which has been specially developed for the mass production of standard thread-cutting taps with straight or spiral flutes as well as forming taps. The stable basic structure of the machine enables high productivity and precision.

The relief motion is performed by a mechanical unit with a replaceable relief grinding curve. This unit is driven by a servo motor and precisely synchronized with the other axes by the CNC control system, which enables very high speeds and relief strokes. In combination with the high-speed technology used on this machine, this guarantees exceptional productivity with very short cycle times.

The grinding wheel is automatically profiled in programmed cycles. The use of set rolls for the thread and chamfer makes it possible to grind both the thread as well as the chamfer in a single setup. The optional W-axis enables flexible 2-axis CNC dressing of the chamfer section using a diamond form roll.

Equipped with multiple pallet stations (raw/finished part), the integrated handling system provides for very short workpiece change times thanks to the use of a 6-axis FANUC robot.

The machine is equipped with the latest drive and control technology (digital servo drives: Siemens, precision length and angle measuring systems: Heidenhain). Thanks to the workpiece-specific user interface by SMS (HMI), the CNC control system (Siemens 840D sl) can easily be programmed by the operator in the dialogue system and ensures short setup times.

 Advantages and special features of the GBA 202:

 Significantly reduced workpiece change times and short setup times lead to higher productivity

 Further improved machine availability

 Use of customer-specific pallets

Axes:

Workpiece slide:                                      (Z-axis)

Workpiece drive:                                     (C-axis)

Grinding support:                                    (X-axis)

Stroke curve drive:                                  (B-axis)

Dressing axis radial:                                (V-axis)

Dressing axis axial:               (optional) (W-axis)

Options:

W-axis for flexible dressing (diamond form roll)

Grinding hard metal tools

M1 package: This option allows grinding of threading tools as of M1 using a single tooth grinding wheel (for forming taps with pitch correction)

 

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