Okuma MU-6300V 5-axis VMC provides multi-sided machining of large workpieces

UK sole agent NCMT describes it as an ideal machine for multi-sided machining of complex parts in one hit, especially in the energy and aerospace industries. A rigid and accurate double column structure supports a +90º/-120º trunnion table which provides two rotary CNC axes. Twin roller gear cam drives on the trunnion (A-axis) and a direct drive motor for the 630 mm diameter rotary table (C-axis) deliver smooth movements for top quality machining at high speed and accuracy. The centre of gravity of the trunnion table and hence of the workpiece is low, enabling both heavy duty cutting and high speed finishing. An -L variant of the machine can be supplied that includes the ability to turn components on the table at up to 800 rpm. The Okuma's Thermo-Friendly structure minimises heat generation during machining and compensates for thermal deformation to maintain consistent performance regardless of warm-up time or ambient temperature. Either a BT40 (HSK-A63) or a BT50 (HSK-A100) taper can be specified. Respective maximum speeds of the 11 kW spindle motor are 10,000 and 6,000 rpm, with 22 kW/15,000 rpm or 26 kW/12,000 rpm spindle options also being available. Tool magazine capacity is 32 pockets with 48 pockets as an option. The user-friendly OSP-P300M control provides fully interpolative 5-axis machining and has built-in collision avoidance. Geometric error measurement and correction with the 5-Axis Auto Tuning System further raises the accuracy of machined components. When the operator instigates the auto tuning cycle, the machine automatically measures geometric error using a touch probe and datum sphere and performs compensation, using the measurement results to tune the movement accuracy. The machine's footprint is under 5 by 3 m. An automatic pallet changer and extra tool storage can be added at the back to enable automation or inclusion in a flexible manufacturing system, without loss of operator access.