Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1992-10-02
1994-04-05
Rachuba, M.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
5116571, 5116577, B24B 4900
Patent
active
052993892
ABSTRACT:
An automatic grinding apparatus includes a constant rotating grinder (24) having a motor (25) in which a load current increases or decreases due to the metal removal rate per unit hour, a travelling device for moving the grinder three-dimensionally along the grinding surface, a sliding device (20) for adjusting the distance between the grinder and an object (50, 51) to be found and a controller for controlling the sliding device to allow the load current of the grinding motor to be constant. An articulated robot or a cartesian coordinate robot is used for the travelling device. The automatic grinding apparatus starts the grinding motor at first, halting the travelling device at the initiation of grinding, permitting the grinder to approach the object to be ground after a time interval and starting the travelling device simultaneously or a little later after detecting that the grinding disk (26) contacts the object to be ground, due to the variation of the load current of the grinding motor. The apparatus restores respective relative positions of the grinder and the sliding device (20) to a certain position by regulating the operation time of an elevation motor (21) of the sliding device or by directly detecting the location of the slider of the sliding device before and after the grinding process. The automatic grinding apparatus is used for grinding a workpiece (50) such as for finishing welded metal and deburring or chamfering the work piece.
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patent: 5067085 (1991-11-01), Wenzel et al.
patent: 5077941 (1992-01-01), Whiting
patent: 5119600 (1992-06-01), Chikatsune et al.
Chin Meitoku
Yatsuda Kenichi
Yonaha Seishu
Aiko Engineering Co. Ltd.
Rachuba M.
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