The invention relates to a method for marking a vehicle tyre (20) and a corresponding marking station. In one example, the vehicle tyre is supplied (100) to a marking station (10), the vehicle tyre (20) is aligned and centred (102, 103) in the marking station (10), marking is performed (108) in the marking station in accordance with characteristics of the vehicle tyre (20), and marking is performed (108) using one marking device (12) from a multiplicity of different marking devices (12). The method according to the invention is distinguished by the fact that the marking device (12) for marking the vehicle tyre (20) is positioned (107) at the vehicle tyre (20) by means of a robot arm (11).

A vehicle wheel balancing machine having a rotating shaft which supports a vehicle wheel, a means for supporting the rotating shaft, and force sensor means adapted to detect the imbalance forces generated during the rotation of the rotating shaft; an accelerator means accelerates the shaft and the wheel and an angular sensor means senses an angular position; an electronic means processes information obtained by the force sensor means and determines the value and the position of correction masses adapted to compensate an imbalance present on the wheel; a moving indicator means is moved by a motorized actuator means and is configured to project a light dot on the wheel; a fixed indicator means projects a luminous beam, perpendicular to the axis of rotation, or a luminous dot, having a fixed and known angle of incidence on the inner surface of the wheel; a coincidence of the moving luminous point with the fixed luminous line or dot identifies a desired position of a counterweight on the diameter of the wheel.

A mixed-flow turbine wheel includes: a plurality of rotor blades disposed on a circumferential surface of the hub at intervals in a circumferential direction and configured such that each of the plurality of rotor blades has a leading edge which includes, in a meridional view, an oblique edge portion where a distance between the leading edge and an axis of the rotational shaft decreases from a tip side toward a hub side, and a sensor detection surface having a flat shape and being applied with a marking which is detectable by an optical sensor device. The sensor detection surface is formed on at least one of the circumferential surface of the hub or an edge portion of a reference rotor blade being one of the plurality of rotor blades, such that, in the meridional view, a trailing-edge side angle of two angles formed between the axis of the rotational shaft and a normal of the sensor detection surface is smaller than a trailing-edge side angle of two angles formed between the axis of the rotational shaft and a normal of the oblique edge portion.

A mixed-flow turbine wheel includes: a plurality of rotor blades disposed on a circumferential surface of the hub at intervals in a circumferential direction and configured such that each of the plurality of rotor blades has a leading edge which includes, in a meridional view, an oblique edge portion where a distance between the leading edge and an axis of the rotational shaft decreases from a tip side toward a hub side, and a sensor detection surface having a flat shape and being applied with a marking which is detectable by an optical sensor device. The sensor detection surface is formed on at least one of the circumferential surface of the hub or an edge portion of a reference rotor blade being one of the plurality of rotor blades, such that, in the meridional view, a trailing-edge side angle of two angles formed between the axis of the rotational shaft and a normal of the sensor detection surface is smaller than a trailing-edge side angle of two angles formed between the axis of the rotational shaft and a normal of the oblique edge portion.

A method of manufacturing a crankshaft includes the steps of: (1) forming a crankshaft blank via a first half and a second half; (2) measuring a plurality of surface variations between a predetermined surface in a first region and a corresponding predetermined surface in a second region of the crankshaft blank; (3) calculating centering offset data based on the plurality of surface variations; (4) machining a pair center holes based on the centering offset data; (5) machining a counterweight and a journal relative to the pair of center holes to produce a partially machined crankshaft; (5) milling and grinding the partially machined crankshaft to produce a finished machined crankshaft; and (6) rotating the finished machined crankshaft typically on the outermost main journals in a final balancing machine and then modifying the counterweights to eliminate undesirable vibration generated during the rotation and engine operation.

A method of manufacturing a crankshaft includes the steps of: (1) forming a crankshaft blank via a first half and a second half; (2) measuring a plurality of surface variations between a predetermined surface in a first region and a corresponding predetermined surface in a second region of the crankshaft blank; (3) calculating centering offset data based on the plurality of surface variations; (4) machining a pair center holes based on the centering offset data; (5) machining a counterweight and a journal relative to the pair of center holes to produce a partially machined crankshaft; (5) milling and grinding the partially machined crankshaft to produce a finished machined crankshaft; and (6) rotating the finished machined crankshaft typically on the outermost main journals in a final balancing machine and then modifying the counterweights to eliminate undesirable vibration generated during the rotation and engine operation.

A decal marker used with a marking station interchangeably carries a decal tape and a marking tape and transfers a decal from the decal tape to a surface to be marked. A marking assembly frame and at least one marker carried by the marking assembly frame which carries the decal tape or the marking tape are included. A tape sensor assembly is carried by the at least one marker and detects an edge of the decal so that the at least one marker properly positions the decal for transfer to the surface.

A decal marker used with a marking station interchangeably carries a decal tape and a marking tape and transfers a decal from the decal tape to a surface to be marked. A marking assembly frame and at least one marker carried by the marking assembly frame which carries the decal tape or the marking tape are included. A tape sensor assembly is carried by the at least one marker and detects an edge of the decal so that the at least one marker properly positions the decal for transfer to the surface.

A method of manufacturing a crankshaft includes the steps of: (1) forming a crankshaft blank via a first half and a second half; (2) measuring a plurality of surface variations between a predetermined surface in a first region and a corresponding predetermined surface in a second region of the crankshaft blank; (3) calculating centering offset data based on the plurality of surface variations; (4) machining a pair center holes based on the centering offset data; (5) machining a counterweight and a journal relative to the pair of center holes to produce a partially machined crankshaft; (5) milling and grinding the partially machined crankshaft to produce a finished machined crankshaft; and (6) rotating the finished machined crankshaft typically on the outermost main journals in a final balancing machine and then modifying the counterweights to eliminate undesirable vibration generated during the rotation and engine operation.

A method of manufacturing a crankshaft includes the steps of: (1) forming a crankshaft blank via a first half and a second half; (2) measuring a plurality of surface variations between a predetermined surface in a first region and a corresponding predetermined surface in a second region of the crankshaft blank; (3) calculating centering offset data based on the plurality of surface variations; (4) machining a pair center holes based on the centering offset data; (5) machining a counterweight and a journal relative to the pair of center holes to produce a partially machined crankshaft; (5) milling and grinding the partially machined crankshaft to produce a finished machined crankshaft; and (6) rotating the finished machined crankshaft typically on the outermost main journals in a final balancing machine and then modifying the counterweights to eliminate undesirable vibration generated during the rotation and engine operation.