Okuma MC-80H Machining Center Retrofit

The Okuma MC-80H is a horizontal machining center with X, Y, Z, B axes. This machine also includes two 76 tool magazines with interconnected tool pick-n-place for transfer to and from tool transfer area. Additionally, the machine has a 6 pallet changing system.

The original CNC system was an Okuma OSP5000M-G control that controlled 5 axes on the machine which included the pick-n-place axis. In addition to the 5 servos the machine has a 15KW spindle with CAT40 tooling. The original feedback on the machine was incremental and resolver type.

The customer selected the NUM Flexium 8 CNC control with the following machine upgrades:

• Replacement of all magnetics and control components in machine control cabinet
• Replacement of operator station and the addition of handpulse generator pendant
• Replacement of all servo motors and drives including spindle
• Additional control display and control station at the tool change area for easy teach and tool sequence testing
• Remote pallet control station
• Replacement of magazine encoders & spindle encoder
• Absolute scales on X, Y, and Z axes.
• Absolute motor on tool pick-n-place
• Remote pallet control station
• Wireless tool length setter and probe
• Upgrade to B axis Inductosyn scale, with absolute control position memory
The NUM Flexium 8 CNC control had the following options:

• Rigid tapping control
• Dual control display
• Additional setup and control functions for machine ease of operation
• Additional control group to run tool changer axis asynchronous to main axis group
• MTConnect interface for machine data exchange with customer’s Management Information System