UB-MCH300B·Tooth Grinding

Side and Back Angle Combination Grinding Machine

The UB-MCH300B is a side and back angle combination grinding machine for carbide-tipped circular saw blades, built from one side-angle module and one front-and-back-angle module. The side angle is the clearance on the flanks of the carbide tip; the back angle is the clearance behind the cutting edge. Grinding both in one setup takes out a re-fixturing step between them. A three-axis gantry robot loads from a multi-blade platform that detects and corrects mis-stacked blades, under full bus servo PLC control with remote monitoring and data collection. The grinding units are modular cast iron on HIWIN roller guideways and NSK precision bearings, holding accuracy to 0.02 mm, and the guideway drive and electrical cabinet sit behind a sealed partition away from the coolant. It covers blades from 105 to 315 mm diameter with arbor sizes 10 to 32 mm and tooth pitches up to 80 mm.

Highlights

Grinds side and rear angles in one combined pass, or side and front angles, with the process recipe changed from the panel
Twin-head vertical side grinding forms both side angles of a tooth in one pass, covering alternate top bevel (ATB), wide-narrow, back-taper and uneven-pitch teeth
The radial side angle is ground by interpolation and the peripheral side angle is servo driven, so angle changes are set at the panel
Free tooth-form editing with saved profiles, plus one-keypress recall of flat-top, ATB and its flat-tooth variants, trapezoidal-flat (TCG) and uneven-pitch forms
Common tooth forms can be run in a quick-grind mode that saves the wheel spindle swinging left and right
Wheel-wear compensation is set separately for left, right and flat teeth and the 45 degree chamfer, so uneven wear is not carried into the tooth