Class 451/408 - Steady rest

Subclass of Class 451 - Abrading
Definition: Work rest for providing additional support to the workpiece
No. of patents: 38
Last issue date: 12/08/2009

Number	Title	Issue Date
7628681	Mechanism for suppressing grinding-cutting vibration A mechanism for suppressing grinding-cutting vibration comprises a C-shaped base, a fixed support seat, a clamp device and a vibration absorber. Based on vibration absorbing principle of the vibration theory, the clamp device is connected to the movable cutting mach...	12/08/2009
7364492	On-line grinding method for work roll An on-line roll grinding method for a work roll, which can decrease an overshoot, by which the pressing load of a rotating grinding wheel on a work roll exceeds a set grinding pressing load, is provided. This method is an on-line grinding method for a work roll, ada...	04/29/2008
7118462	Disk for toroidal continuously variable transmission and method of machining the same A method of machining a disk for a toroidal-type continuously variable transmission, has the steps of fixing a disk to a core bar having a pair of reference portions for rotation at both end thereof, clamping the reference portions by a first center and a second cen...	10/10/2006
7008294	Method and device for grinding a rotating roller using an elastic steady-rest support The invention relates to a device for grinding rollers, also for grinding hollow rollers. As the rollers tend to vibrate transversally as a result of the contact with the grinding disc, a cushioned body is applied to the opposite side of the roller from the grinding...	03/07/2006
6896603	Steady rest with independent vertical and horizontal adjustments A steady rest having separate adjusting screws for adjusting the clamping positions of three workpiece engaging rollers either horizontally or vertically. ...	05/24/2005
6699113	Steady rest with vertical adjustment A steady rest having cams for adjusting both vertical and the horizontal position of the centerline of a cylindrical workpiece....	03/02/2004
6568993	Fixture for clamping a gas turbine component and its use in shaping the gas turbine component A turbine component such as a turbine blade is clamped into a fixture having a base upon which a remainder of the fixture is supported and a stop which limits the movement of the turbine component. The fixture further has two clamp arms affixed to the bas...	05/27/2003
6390889	Holding strip for a semiconductor ingot A holding strip is used to hold a semiconductor ingot during semiconductor wafer fabrication. The holding strip is formed from a semiconductor material, typically the same material used to form the ingot itself. The holding strip has a holding surface sha...	05/21/2002
6257972	Steady rest having linear sliding clamping bars This invention is related to a steady rest, which employs a pair of parallel, sliding, linear moving clamping bars for moving wear pads or rollers toward a workpiece....	07/10/2001
5766059	Method of grinding a workpiece A workpiece and a grinding wheel are rotated and the grinding wheel is moved in a direction parallel to the rotational axis of the workplace so as to grind a cylindrical surface of the workpiece. After a part of the cylindrical surface is ground, a rest d...	06/16/1998
5556326	Floating rotary drive device of a workpiece to be machined by grinding A floating rotary drive device sequentially holding a workpiece of a series of workpieces to be supported with slack while each workpiece is machined by grinding while the workpiece is rotated about a slack axis of rotation, comprising a motor having n ou...	09/17/1996
5527210	Dynamic steady rest A dynamic steady rest particularly adapted for use in supporting a rotating workpiece during a grinding operation. The steady rest includes a lever assembly pivotally mounted on a base and having a workpiece support arm and a counterweight arm. Weights ar...	06/18/1996
5058468	Remote gage steady rest head An automatic true centering steady rest apparatus for a rotating cylindrical workpiece during a machining or grinding operation on the workpiece. The apparatus has an integrally mounted gaging device, for continuously gaging the diameter of a workpiece du...	10/22/1991
4823657	Self-centering steady rest A self-centering steady rest with extensive diameter clamping range for centering cylindrical workpieces on machine tools using a constant linear displacement clamping force. The steady rest includes two pivoting levers arranged symmetrically about a line...	04/25/1989
4766703	Adjustable support rest for a cylinder grinding machines or the like A motorized rest for supporting the piece being worked by grinding machines for cylinders, rollers and the like, has a fixed lower body suitable for being joined to a bench of the grinding machine, on which an upper body is slidingly arranged so as to be ...	08/30/1988
4747234	Apparatus for fine-machining crankshaft pins The pins of rotating crankshafts are fine-machined by resiliently biasing the workpiece towards a grinding device with a predetermined force....	05/31/1988
4711054	Grinding machine with a steady rest In a numerical control grinding machine using a grinding wheel made of cubic boron nitride, a computerized numerical controller controls the infeed movement of a wheel head to effect a rough grinding and a first fine grinding on a rotating cylindrical wor...	12/08/1987
4663892	Force-controlled steadyrest system A method of grinding a workpiece which is susceptible to deflection and/or deformation when grinding is carried out by relatively infeeding a grinding wheel to keep the wheel face and work surface in relative rubbing contact at an interface region, the me...	05/12/1987
4634323	Apparatus for guiding workpieces Apparatus for guiding elongated generally cylindrical workpieces moving longitudinally along an axis includes a plurality of workpiece guides movable toward and away from the axis. An adjustment mechanism selectively moves the workpiece guides toward or a...	01/06/1987
4566228	Workpiece guides The disclosure relates to a workpiece guide for supporting a rotary workpiece comprising a housing in which an assembly of three jaw members is mounted on the base to embrace and support a workpiece for rotation about an axis defined by the positions of t...	01/28/1986
4558978	Machine for machining crankshafts The invention relates to a machine for machining crankshafts, which operates according to the gyrocutter principle, and which has two machining units and one corresponding clamping device each. In order to be able to provide optimum clamping even for unst...	12/17/1985
4519279	Selfcentering work-rest Work-rest for use primarily with machine tools, provided with a prehensile, selfcentering, automatic and double-acting equipment. This equipment is composed of a tern of rollers, whose centripetal simultaneous displacement, that assures the coaxiality of ...	05/28/1985
4517866	Steadyrest for slant bed lathe An improved steadyrest includes a workpiece support quickly releasable from a workpiece upon only several adjustment screw revolutions. The support is freely movable away from a workpiece, after release, without further screw revolution. This permits full...	05/21/1985
4485593	Grinding machine for crankshaft pins Grinding machine for pins of heavy crankshafts on which the crankshaft is eccentrically mounted in a rotatable clamping arrangement on both sides, where the crankshaft pin to be ground is located in the rotational center of the clamping arrangement and on...	12/04/1984
4438599	Vibration damper for machine-carried workpiece A work contact shoe floats in an elastomeric mount within a shoe holder, and the shoe holder is mounted by bracket means to a machine base. A preload mechanism is employed for forcing the work contact shoe into a slight preload against a workpiece so that...	03/27/1984
4416174	Auxiliary support fixture for a steady rest An auxiliary support device for a workpiece is connected to a bracket mounted on a side face plate of a steady rest. The support device includes a member extending from the end of the steady rest for abutting the workpiece diametrically opposite the machi...	11/22/1983
4404772	Cylindrical grinding machine A cylindrical grinding machine comprising chucks for supporting and rotating a workpiece about a selected axis, a wheelhead assembly selectively displaceable transverse to the axis including a rotatable grinding wheel for effecting stock removal from the ...	09/20/1983
4399639	True centering steady rest A true centering steady rest for rotatably supporting an elongated cylindrical workpiece for a metal working operation on the outer diameter of the workpiece, such as a grinding operation. The steady rest includes a housing in which is slidably mounted a ...	08/23/1983
4324073	Process for automatic feed of steady jaws The disclosure relates to a process for the continuous, automatic feed of at least one jaw of a steady for supporting a workpiece, for example a shaft or crank shaft with its axis in the desired position on grinding the workpiece outer face and is more sp...	04/13/1982
4288945	Rest apparatus A rest apparatus for supporting a cylindrical portion of a workpiece to be machined. A pilot shaft is supported at the opposite ends thereof by a support head and provided with a piston portion to form a hydraulic cylinder with a cylinder bore of a rest h...	09/15/1981
4276723	Compensating steadyrest A steadyrest for supporting a workpiece to be ground comprising three contact shoes which are simultaneously movable toward and away from a workpiece centerline so that workpieces of varying diameter can be supported and maintained on a fixed centerline o...	07/07/1981
4205492	Digitally controlled grinding machine with rest apparatus A digitally controlled grinding machine provided with a rest apparatus which is opposed to a wheel head, carrying a grinding wheel, for supporting against grinding resistance a workpiece rotatable on a support device, and with a measuring device, which ou...	06/03/1980
4201016	Apparatus for grinding a workpiece An improved grinding method and apparatus is advantageously used to sequentially grind the pins of a crankshaft. During the grinding of each crankpin, the pin is supported by a steadyrest. During an initial grinding operation, the crankpins are measured o...	05/06/1980
4195448	Two-point contact steady rest follower A steady rest follower for a workpiece comprising a frame supporting a slide which is movable in directions toward and away from the workpiece. A pair of vertically spaced support wheels are mounted on the slide for engagement with the workpiece. A pair o...	04/01/1980
4180947	Grinding method A vehicle rear axle housing has opposite end grind diameters and inboard tooling diameters proximate to the grind diameters. The grind diameters are ground on a centertype grinder by supporting the ends of the housing in both axial and radial directions; ...	01/01/1980
4179854	Grinding machine with rest apparatus In a grinding machine, a grinding wheel is digitally fed toward a workpiece being supported by a rest apparatus. Means is provided to measure a diametral dimension of the workpiece during a grinding operation. A taper amount of the workpiece ground under ...	12/25/1979
4074470	Anti-chattering, grinding counterbalance device A fixture for aiding in the support of a work during a grinding operation so that the work does not chatter; the fixture including a base block for being stationarily positioned, the block supporting a pivotable rocking lever which at its one end bears ag...	02/21/1978
3977129	Grinding machine A cylindrical grinding machine comprising means for supporting a workpiece for rotative displacement about the axis thereof, a grinding wheel assembly including at least one grinding wheel and means for rotatively displacing the grinding wheel about the a...	08/31/1976

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Class 451/408 - Steady rest