US 7,530,878 B2
Grinding machine with a concentricity correction system
Mikail Simakov, Victoria (Australia); and Christian Dilger, Leinfelden-Echterdingen (Germany)
Assigned to Walter AG, Tubengen, Deleware (Germany)
Appl. No. 10/572,209
PCT Filed Sep. 23, 2004, PCT No. PCT/EP2004/010660
§ 371(c)(1), (2), (4) Date Dec. 21, 2006,
PCT Pub. No. WO2005/030437, PCT Pub. Date Apr. 07, 2005.
Claims priority of application No. 103 44 293 (DE), filed on Sep. 23, 2003.
Prior Publication US 2007/0082580 A1, Apr. 12, 2007
Int. Cl. B24B 49/12 (2006.01)
U.S. Cl. 451—5  [451/6; 451/49] 17 Claims
OG exemplary drawing
 
1. A tool grinding machine, comprising:
a workpiece receptacle, which is arranged for receiving an elongated rotationally symmetrical blank having an axis of symmetry;
a tool holder, which is arranged for rotating the workpiece receptacle about a predetermined receptacle axis, and a rotary position detection device is arranged for monitoring the angular position of the workpiece receptacle about the receptacle axis, which are-connected in relation to the workpiece receptacle;
a grinding head which has a rotary drive mechanism and carries at least one grinding tool;
a positioning device, which is connected to at least one of the workpiece receptacle and the grinding head, for effecting a relative motion between the grinding tool and the blank;
at least one measuring device, which is arranged for determining the location of the axis of symmetry of the blank; and
a machine control unit, which is connected to the tool holder, the rotary position detection device, the positioning device, and the measuring device, and which has a computation module, which determines control commands for the positioning device, taking into account the location of the axis of symmetry of the blank and the angular position of the receptacle about the receptacle axis to grind the blank about the axis of symmetry of the blank.