Grinding progress
The productivity of a centerless cylindrical grinding machine is usually referred to as grinding throughput. Besides customer-specific demands such as workpieces per shift, the unit of meters per minute has become standard.
Depending on the tolerances, the stock removal per pass, the performance of the machine and grinding wheel, surface specifications, straightness and roundness of the raw material, thermal resistance of the material and other influencing factors, typical values range between 0.5 and 10 m/min.
Measuring:
The diameter of the workpieces can be measured automatically, immediately after they leave the centerless cylindrical grinding machine. This can be done using a mechanical gauge, a laser curtain or by measuring air pressure with a ring equipped with air nozzles. The measurement result can be used for automatic correction of the grinding gap.
Components
Grinding wheel
Grinding wheels are typically made of silicon carbide or corundum, less often diamond or CBN. The bonding and grain type are selected to suit the application.
Regulating wheel
The regulating wheel must have a high coefficient of friction. Regulating wheels are often made of rubber bonding. Resin or ceramic bonding can also be used.
Workrest blade
The body of the workrest blade is usually made of steel. The contact surface with the workpiece is made of carbide, bronze, or, less commonly, PCD.
Drive of the workpiece
The regulating wheel keeps the workpiece at the desired speed. Since the grinding wheel tends to speed up the workpiece, the regulating disc must be able to both drive and brake the workpiece.