Grinding apparatus
AssigneeNtn Corporation
InventorYuuki KADONO
Life of this patent
Estimating the term…
Abstract
A grinding apparatus includes: a grinding member driving unit having a motor that rotates a grinding member; a table driving unit that brings the grinding member into contact with a workpiece by moving the grinding member and the workpiece relative to each other; an AE sensor that detects an acoustic emission generated when the grinding member and the workpiece are brought into contact with each other; and a controller that controls a cut-in speed of the grinding member into the workpiece by controlling the table driving unit. The controller controls the cut-in speed using an output of the AE sensor and a motor current of the grinding member driving unit.
Claims4
A grinding apparatus comprising:
- a rotation apparatus having a motor that rotates a grinding member;
- a moving apparatus that brings the grinding member into contact with a workpiece by moving the grinding member and the workpiece relative to each other;
- an AE sensor that detects an acoustic emission generated when the grinding member and the workpiece are brought into contact with each other;
- and
- a controller that controls a cut-in speed of the grinding member into the workpiece by controlling the moving apparatus, wherein
- the controller controls the cut-in speed using an output of the AE sensor and an output of the motor.
Dependencies are inferred from the claim text.