Grinding machine takes Schmitt wheel balancer
A
Schmitt Europe product story
Edited by the Engineeringtalk editorial team
Feb 27, 2009
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 machine model CAM650 CNC is supplied with software for grinding various types of cam profiles by interpolation of the X and C axis.
The SBS automatic grinding wheel balancer is a dynamic system, permanently installed on the grinding machine spindle through an adapter arrangement.
The machine can also be used for cylindrical grinding.
The SBS automatic grinding wheel balancer is a dynamic system, permanently installed on the grinding machine spindle through an adapter arrangement.
A vibration sensor picks up spindle vibration caused by wheel imbalance and feeds this information to the SB4500 Series electronic controller.
The controller drives two tungsten weights inside a balance head - fixed to and rotating with the spindle.
The two weights are moved to positions to counteract the wheel imbalance, reducing vibration on the spindle.
All this is done automatically, eliminating the need for wheel pre-balance or balancing on knife-edges prior to mounting on the machine.
The SBS system can be installed on almost any cylindrical, centreless, roll, creepfeed or surface grinder.
An unbalanced grinding wheel will increase machine vibration and decrease the life of spindle, bearings, grinding wheel and diamond dresser.
Poor surface finish, chatter marks, workpiece 'ovality' and 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 and interfaced it with the Siemens Sinumerik CNC on the CAM650 machine.
The machine can start and stop automatic balancing via the inputs, as well as locking the keypad.
Useful outputs, such as balance in and out of tolerance, spindle rev/min and critical vibration are also used.
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Contact Schmitt Europe
Tel +44 24 7669 7192
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