CAM650 CNC is supplied with software for grinding various types of cam profiles by interpolation of the X and C axis
The machine model CAM650 CNC is supplied with application for grinding various types of cam profiles by interpolation of the X & C axis.
SRB Machines from Ghaziabad near New Delhi, India, has fitted its CAM650 CNC camshaft grinding machine with an SBS (Schmitt Balance Systems) automatic wheel balancer from Schmitt Europe.
The SBS automatic grinding wheel balancer is a dynamic method, permanently installed on the grinding machine spindle through an adapter arrangement.
The machine can also be used for cylindrical grinding.
A vibration sensor picks up spindle vibration caused by wheel imbalance & feeds this information to the SB4500 Series electronic controller.
The controller drives four tungsten weights inside a balance head – fixed to & rotating with the spindle.
The four weights are moved to positions to counteract the wheel imbalance, reducing vibration on the spindle.
All this is completed automatically, eliminating the require for wheel pre-balance or balancing on knife-edges prior to mounting on the machine.
The SBS method can be installed on any cylindrical, centreless, roll, creepfeed or surface grinder.
An unbalanced grinding wheel will increase machine vibration & decrease the life of spindle, bearings, grinding wheel & diamond dresser.
Poor surface finish, chatter marks, workpiece ‘ovality’ & grinder/surface burn can often be attributed to a badly balanced wheel.
SRB took advantage of the I/O capability of the SB4500 dynamic balancer & interfaced it with the Siemens Sinumerik CNC on the CAM650 machine.
Useful outputs, such as balance in & out of tolerance, spindle rev/min & critical vibration are also used.
The machine can start & stop automatic balancing by the inputs, as well as locking the keypad.