Grupos DiferencialesCustomised grinding machines for machining gears

Challenge

Solution

• Two highly versatile grinding machines, one horizontal and the other vertical, able to turn, measure and grind workpieces of different sizes.
• Machining of workpieces (Horizontal HG) of up to 2000 mm in length, 640 mm in diameter and 1.5 tonnes in weight.
• Machining of workpieces (Vertical VG) of up to 1000 mm in diameter, 700 mm in height and 3 tonnes in weight.

Equipment

VG-1000 vertical grinding machine.

• Multi-position head (B-axis) for hard turning and grinding of workpieces
• Measuring arm for measuring inner & outer diameters, faces & cones.  Repeatability of less than 1 micron & dimensional geometry of less than 5 microns.
• High stiffness and stability for tough, hard turning processes.
• Main magnetic clamping system for manufacturing medium and large diameters.
• Self-centring jaw chuck for batches of smaller parts.

HG-72 horizontal grinder.

• Specific toolings for grinding in a single set-up.
• A head made up of three grinding wheels for machining external diameters, faces and threads.
• Head powered by a 45 kW motor for peripheral speeds of up to 45 m/s and grinding wheels with a maximum diameter of 610 mm.
• DANOBAT MDM-300 multi-diameter measuring system. In-process measuring with a repeatability of  ± 1.5 microns.
• Filtration unit capable of filtering up to 15 microns...