At GearExpo2015, MTB will display a P900 gear hobbing machine rebuilt with all mechanical linkages, gearing and other driving mechanisms replaced with new, modern servo drives and electronic controls via CNC. All guide ways have been refinished, seals and bearings replaced, hydraulics completely replaced, lubrication systems replaced, and a new electrical systems installed. During the course of the rebuild, the machine was converted to CNC control for the X (radial), Y (tangential), Z (axial), C (worktable), and A (hob head swivel) axis, along with the B (cutter) spindle. Overall features include a hob head swivel converted to CNC; enclosure with manually operated door and access panels for maintenance; and a new magnetic style chip conveyor.
This proven rigid design has outstanding performance and is an ideal addition to any gear department. This CNC Pfauter P900 hobber is “For Sale” with delivery immediately after the show.
RESTORATION OF A CLASSIC CAR OR THE DYNAMICS OF SUPERCHARGING AN ENGINE.
The challenger was one of the classic muscle cars of the 1970s with an unforgettable body style and mopar power. Today, its classic design with increased power and performance make it even more desirable. At MTB, classic machine design challenges are overcome by shortening the drive (gear) train for efficiency and accuracy, and by converting them to servo-driven ballscrews. Motors are designed with the proper torque and speed to move the axes at the required accelerations and speeds, which is very similar to the dynamics of supercharging an engine. We look at rebuilding a machine like doing a restoration of a classic car, but with a new high performance engine and chassis underneath the body. It’s like a puzzle: understanding every component by taking it apart and putting it back together for improved productivity.
The remanufacturing or rebuilding of a machine is the most advanced level of upgrade. It includes not only a rebuild and a recontrol, but in addition, the machine is modified to reduce or eliminate as much as possible the mechanical linkages, gearing and other driving mechanisms. Generally these are then replaced with new modern servo drives, and electronic control via CNC or PLC motion cards. The reduction in the number of bearings, seals, shafts and other mechanical elements translates to less mechanical wear areas, and a more reliable and accurate machine tool. As a result, it’s a modern machine tool.