Workpiece headstock

Details Workpiece headstock Workpiece headstock

2007-07-03

2007-07-03

Morgan, Eileen P. (Department: 3723)

Abrading

Precision device or process - or with condition responsive...

Computer controlled

C451S008000, C451S009000, C451S365000

Reexamination Certificate

active

11353393

ABSTRACT:
Workpiece headstock for a machine tool, especially for a grinding machine,with a spindle (6);with a clamping device (7), which is connected to the spindle (6) and which is used to clamp a workpiece (8) to be machined; andwith a spindle drive (9),where, a loosenable alignment interface (14) is provided between two sections of the spindle (6), between the spindle (6) and the clamping device (7), or between two sections of the clamping device (7);where, after the alignment interface (14) has been loosened and while the workpiece headstock (1) otherwise remains stationary, the clamping device (7) and thus the workpiece (8) clamped in it can be aligned in a plane perpendicular to the spindle axis (15), as a result of which any existing offset between the workpiece axis (17) and the spindle axis (15)—i.e., the eccentricity of the clamped workpiece (8)—can be eliminated;where an adjusting device (18) is provided for the alignment of the clamping device (7),the adjusting device (18) is designed as a unit separate from the clamping device (7) and from the spindle (6) and has an actuating drive (19); in thatthe clamping device (7) can be aligned by the motor of the actuating drive (19); in thata sensor arrangement (20) is provided, from the measurement values of which the eccentricity of the clamped workpiece (8) can be determined; in thatan alignment control unit (21) is provided, which is connected on one side to the actuating drive (19) and on the other side to the sensor arrangement (20) in a manner suitable for the purpose of control technology; and in thatto align the clamping device (7), the alignment control unit (21) operates the actuating drive (19) as a function of the measurement values provided by the sensor arrangement (20) and thus cooperates with the actuating drive (19) and the sensor arrangement (20) to form a closed-loop control circuit.

REFERENCES:
patent: 3769756 (1973-11-01), Kipple et al.
patent: 5174179 (1992-12-01), Hiestand
patent: 5616070 (1997-04-01), Rice et al.
patent: 5971682 (1999-10-01), Vig
patent: 6470776 (2002-10-01), Boland et al.
patent: 6865787 (2005-03-01), Shingai et al.
patent: 3929010 (1990-04-01), None
patent: 89 15 435 (1990-07-01), None
patent: 0314333 (1988-10-01), None
patent: WO 2004/007128 (2004-01-01), None
patent: WO 2004/043646 (2004-05-01), None

Affiliated with

Also associated with

Rating

Workpiece headstock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Workpiece headstock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Workpiece headstock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3729171