Patent ID: 6572442
Filing Date: 2003-06-03
Classification: B24B

Abstract:
A dressing apparatus attached to a grinding apparatus including a grindstone, comprising:a movable supporter; a moving mechanism for moving the supporter; a rotating mechanism mounted on the supporter; a rotary dresser rotatable by means of the rotating mechanism; an AE sensor attached to the rotary dresser, the AE sensor being rotatable along with the rotary dresser and being adapted to detect vibration generated when the dresser is brought into contact with the grindstone and to deliver an output signal based on the vibration; a receiver attached to the supporter in a manner such that the receiver is spaced apart from the AE sensor and is opposed to the AE sensor across an air gap, and capable of receiving the output signal; and a controller adapted to deliver a command to stop the movement of the supporter in response to a signal received by the receiver.