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| Number | Title | Issue Date |
| 7424776 | Method for machining a workpiece A method for machining a workpiece in which a machine tool comprising a first and a second chuck devices is employed to machine the workpiece, the machine tool being used in which the first and the second chuck devices comprise a chuck main body, plural chuck jaws, ... | 09/16/2008 |
| 6926591 | Multi-purpose machine The invention concerns a method and an apparatus in which crankshafts and similar components can be machined at the relevant machining locations (big-end bearing locations, main bearing locations, side cheek side surfaces, end journal/end flange) on one machine and ... | 08/09/2005 |
| 6890249 | Carrier head with edge load retaining ring A carrier head for chemical mechanical polishing of a substrate having a front surface, a back surface and an edge. The carrier head has a base, an inner retaining ring positioned beneath the base, and an outer retaining ring surrounding the inner retaining ring to ... | 05/10/2005 |
| 6589103 | Device for the finishing treatment of shaft workpieces The invention relates to a device for the finishing treatment of shaft workpieces, in particular crankshafts and camshafts. The device comprises a carrier, at least one jaw for exerting contact pressure on the workpiece, and a linear guide for guiding the... | 07/08/2003 |
| 6149503 | Method and apparatus for supporting a crankshaft in a grinding machine for grinding the crankpins of the crankshaft A method of supporting a workpiece having journal and eccentric regions, in a grinding machine for grinding the eccentric regions thereof, is described which involves mounting the workpiece in a headstock of the grinding machine, providing a coupling betw... | 11/21/2000 |
| 6149502 | Crankshaft machining method A crankshaft machining apparatus for use in machining a crankshaft from a workpiece, includes: a bed; a pair of work heads mounted on the bed for fixedly supporting the workpiece to be machined at both ends thereof, respectively; at least one cutter head ... | 11/21/2000 |
| 6070496 | Method and apparatus for crankpin phase indexing A chuck (25) for chucking a journal (271) of a crankshaft (27) is attached to the distal end of a main spindle (22) rotated by a drive motor. A phasing rotary shaft (53) is connected to the chuck (25) to rotate about an axis offset from the axis of the ma... | 06/06/2000 |
| 6026549 | Crankpin phase indexing method and apparatus A crankshaft phase indexing apparatus of this invention is provided with a pair of spindles arranged in alignment with a first axis. The Spindles are rotated respectively by a pair of spindle driving motors, which are controlled to rotate at the same spee... | 02/22/2000 |
| 5951383 | Grinding and polishing belt The invention relates to grinding belts and polishing belts, which are particularly suitable for processing enclosed constructions, since they can be re-sealed by simple means and manner after severing to form a ring-shaped endless belt.... | 09/14/1999 |
| 5700186 | Motorized spindle with indexing fixture A spindle, comprised of a spindle body and an indexing fixture, is configured to retain, and rotatingly drive, a crankshaft relative to a grinding tool, so that each pin on the crankshaft is ground with a high degree of precision. A locking mechanism, suc... | 12/23/1997 |
| 5681208 | Method and apparatus for grinding a crankshaft An apparatus for grinding particularly a crankshaft is proposed, the apparatus having a workpiece headstock and a tailstock with, in each case, a bearing, which is disposed in the extension of the crankshaft axis and is intended to accommodate the cranksh... | 10/28/1997 |
| 5643068 | Abrading wheel having individual sheet members The invention relates to an abrasive sheet member produced from the interstitial sheet material between circular abrasive discs during converting operations. The sheet material includes at least three projecting ends separated from each other by a boundar... | 07/01/1997 |
| 5616070 | Work drive orienting system for machine tool A work drive orienting system for a machine tool, such as a multiple belt grinder, comprises a head stock and a tail stock for supporting the workpiece to be machined, a locator retained by a spider in the head stock chuck, and a proximity sensor located ... | 04/01/1997 |
| 5303511 | Spindle apparatus for supporting and rotating a workpiece A spindle apparatus for supporting and rotating a workpiece in a grinder. The spindle apparatus includes a workpiece spindle rotatably supported on a spindle head and driven for rotation by a motor, and a spindle plate mounted to the front end of the work... | 04/19/1994 |
| 5189846 | Chuck indexing arrangement and method An indexing device for a grinder selectively positions the rod bearing journals of a crankshaft at a preselected location relative to an abrasive wheel of the grinder. The indexing device includes a spindle connected to a drive shaft of the grinder, a chu... | 03/02/1993 |
| 5144772 | Method and apparatus for angularly indexing a crankshaft An indexing mechanism in a machine tool for selectively positioning plural pin portions of a crankshaft at the machining position aligned with the work spindle, wherein a indexing member engaging with the crankshaft through an engaging pin is rotated by a... | 09/08/1992 |
| 4934882 | Apparatus for monitoring the angular position of a workpiece Apparatus for monitoring or tracking the angular position of a rotating camshaft during grinding or milling of cams on the camshaft. The cams may be milled, but in the apparatus shown, they are ground by abrasive belts which are guided by actuators driven... | 06/19/1990 |
| 4528876 | Universal single spindle pin crankshaft lathe A crankshaft lathe of the single spindle pin type capable of universal use with a variety of types of crankshafts. The lathe includes a single tool support mounted upon ways for movement both perpendicular and parallel to the workpiece axis. A single driv... | 07/16/1985 |
| 4526503 | Support structure for checking and repairing heavy rotatable objects A support structure utilized for checking and repairing rotatable objects of various kinds, such as a turbine for power generator or a blower fan, includes a roll support base which rotatably supports one end of the rotatable object thereon by means of a ... | 07/02/1985 |
| 4475318 | Device for clamping crankshafts in grinding machines A device for clamping a crankshaft in a grinding machine has a rotary face plate which defines a lubricant-filled space and carries two parallel shafts for removable clamping jaws. The jaws can cooperate with a support, which is removably affixed to the f... | 10/09/1984 |
| 4269001 | Work clamping fixture A workholding fixture for clamping a workpiece for rotation about a selected axis comprising at least one throwblock for receiving a workpiece portion to be clamped, a clamp arm associated with the throwblock including a jaw at one end and a control surfa... | 05/26/1981 |
| 4250667 | Device for supporting a crankshaft having four crankpins on a grinding machine The device comprises two rotary carrier-plates each fitted with a carriage which is equipped with a chuck for gripping one end of a crankshaft and which is adapted to move on a diametral guide of the carrier-plate. The plane of the axes of the crankpins i... | 02/17/1981 |
| 4221080 | Work-tables of grinding machines The grinding machine essentially comprises a frame on which a grinding-wheel slide is capable of moving towards a workpiece carried by a sliding table designed in two separate parts or table components, one of which is adapted to carry a headstock while t... | 09/09/1980 |
| 4207710 | Workpiece positioning apparatus A workpiece positioning apparatus 12 (FIG. 1) for positively locating a workpiece 14 with respect to a drive spindle 20 in a grinding machine is disclosed. The apparatus 12 is secured to the drive spindle 20 and provides a means for holding the workpiece ... | 06/17/1980 |
| 4121385 | Cam grinding machine A headstock for a cam grinding machine comprising a headstock housing for housing a work spindle rotatably supported on a rocking table which is urged by means of springs to be pivoted so as to contact master cams carried on the work spindle with a follow... | 10/24/1978 |
| 4099349 | Cam grinding machine with swing table support device In a cam grinding machine, first and second support means are mounted on a first surface of a traverse table for swingably supporting a swing table at opposite ends thereof. A third support means is arranged between the first and second support means and ... | 07/11/1978 |
| 4023937 | Chuck assembly A chuck for rotatably supporting a bearing of a workpiece comprising a clamping fixture including a base member having a bearing surface selectively configured for matingly supporting a portion of the workpiece bearing, a jaw having a selectively configur... | 05/17/1977 |
| 4003721 | Cylindrical grinder A cylindrical grinder comprising means including a drive plate and a clamping assembly secured to the drive plate for rotating a workpiece about a selected axis, the workpiece having an end main bearing, a first work diameter to be machined, a second main... | 01/18/1977 |
