Download brochure - F. Zimmermann GmbH

DriveTechnologyOne of the most importantcriteria for the quality of a millinghead is the technology used todrive the A- and C-axes. Severaldifferent concepts each withdifferent strengths and weaknessescompete in this segment.Zimmermann has mastered allthe different drive techniquesand is constantly on the look outfor new trends in order to takeadvantage of the best innovationsin the future. For each type ofmilling head and each applicationexactly the right drive is selectedwhich is optimally suited for thework to be carried out.T ORQUEMOTORW ORM&WHEELDRIVEHARMONICDRIVEDrive technology comparisonFeed rate ■ ■ ■Acceleration ■ ■ ■Surface finish ■ ■ ■Energy requirement ■ ■ ■Safety by power failure ■ ■ ■Life expectancy ■ ■ ■Crash sensitivity ■ ■ ■Ease of maintenance ■ ■ ■Investment costs ■ ■ ■Repair costs ■ ■ ■Cost effectiveness ■ ■ ■Better■ ■ ■ ■ ■ WorseTorque driveComplete direct driven millinghead for applications requiringthe highest speeds and accelerations:■ A lot of repositioning and toolchanges■ True, constant simultaneousmachining on fast machinesAdvantages■ Extremely fast■ High axial acceleration■ Hardly any wearVH 6 and VH 5 milling headsWorm and wheel driveWell balanced drive system forhigh force transmission andaccuracy. Suitable for almost allareas of application:■ Mixed simultaneousmachining and 3-axis millingAdvantages■ Good damping by mechanicalworm and wheel drive for verygood surface finish■ Good closed loop control■ High reduction for strongmilling heads of small size■ Reasonable costsVH 4, VH 3 and VH 2 millingheadsHarmonic driveSimple and light drive systemwhich nonetheless has very littlebacklash:■ For lightweight materialsand suitably designed machinesAdvantages■ Light and small■ Very little backlash■ Reasonable costsVH 1 milling head12 Milling heads