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Machine Retrofits 2 - Okuma MC-5VA vertical 3-axis mill

Machine at the beginning of the retrofit
Original Okuma CNC control panel. In its day this was a decent machine. Today these kind of controls are hard for the newer generation to wrap their head around.
This generation of controller still relied on a lot of manual settings and had very little memory
Back of the tool with some of the hydraulic systems
Input power cabinet
Contactor cabinet
Main control cabinet before retrofit. Fortunately the owner kept the interior clean.
Side of machine controls
Tool changer controls at front of tool
Left side of machine showing tool changer
Tool turret
Tool turret with cover removed showing hydraulic actuators & encoders
Manual tool loading station
Original axis motor. Motor technology has improved dramatically in the past few decades justifying replacement
Original axis encoder
Axis motor removed showing drive gear
Axis motor mount bracket removed showing business end of the ball screw
CNC control cabinet door stripped of old components
CNC control cabinet subplate stripped of old components
CNC control cabinet subplate stripped of old components. AC servos installed
CNC control cabinet subplate rewired and ready for the new brains to be installed
CNC control cabinet subplate rewired and ready for the new components
Cable duct in place on the subplate where the new CNC control will go
New CNC installed ready for wiring. Level is used to make sure everything is neat and proper.
New CNC controller partially wired up
New CNC controller mostly wired up
Right oblique view of new CNC control cards
Left oblique view of new CNC control cards
Close up of new Yaskawa AC servo drives. Power electronics has improved efficiency steadily each year justifying replacements.
Most of the new electronics installed and wired
Spindle Variable Frequence Drive wired to new electronics
Final control cabinet wiring in place and ready for dressing
HMI pendent arm with old panel removed
New HMI Human Machine Interface pendant installed
Finished tool undergoing final acceptance testing
Diagram of the control system design. Note that factory prices may change. Labor, drives, motors, and other items are not included in the prices listed.


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