The primary benefit of a multi-task machine is that you can combine several cutting processes and set-ups in one single machine, reducing component set-ups and lead times. In a vertical multi-task machine the component is rotating around the vertical axis.
Vertical multi-task machine configuration
The vertical mill/turn machine has the component rotating around the vertical axis. The components are normally larger in diameter than for a horizontal multi-task machine and not requiring support via a steady rest, tailstock or sub-spindle.
This machine grouping has evolved from 5-axis machining centres with the addition of turning capability through increasing the rpm capability of the C axis (turning table) and adopting the spindle for stationary operations. Combining all operations on one machine thereby reducing component set-ups adds to its 5-axis machining capabilities.
To succeed with combining multiple and complex applications there are some key options that should be considered.
The mix of static and rotating tools requires the broadest spindle capability combining a traditional machining centre and a lathe. High bending stiffness, torque transmission and accurate tool centre position are why Coromant Capto® is the most suitable interface for this machine concept.
Longer tool lengths will be needed for any internal operations making C8 (80 mm (3.150 inch) flange diameter) or C10 (100 mm (3.937 inch) flange diameter) the best choice for larger machines.
As well as providing the best stability, Coromant Capto® allows for the shortest gauge line and lowest tooling cost by removing the need for machine interface adaptors.
Read more about how to choose spindle
A multi-task machine can replace a lathe and a machining centre and produce various components. It is important to allow ample space for tools in the magazine, for all operations and components, to support a quick change over from one job to another without the need to change tools.
By using a pallet the component can be set-up in the fixture while the machine is still producing. This provides excellent machine utilization compared to setting up directly in the machine.