A machine for repairing motorcycle rims includes a frame, straightening devices having actuators for straightening deformations of the rim displaceable by the frame, a vertical support shaft adjustable with respect to the frame structure, configured to support the rim. The machine also includes a head base coupleable to an intermediate bedplate of the frame, a head rotatably coupleable to the head base, configured to rotate freely or actuated by transmission means, locking units adjacent to the head, configured to lock the rotation of the head, a fastening device coupleable to the head, configured to, in combination with the vertical support shaft, fasten the rim crossing through and/or resting on a hub of the rim; and a machining device mounted in a movable manner in the frame, configured to machine the rim.

A machine for repairing motorcycle rims includes a frame, straightening devices having actuators for straightening deformations of the rim displaceable by the frame, a vertical support shaft adjustable with respect to the frame structure, configured to support the rim. The machine also includes a head base coupleable to an intermediate bedplate of the frame, a head rotatably coupleable to the head base, configured to rotate freely or actuated by transmission means, locking units adjacent to the head, configured to lock the rotation of the head, a fastening device coupleable to the head, configured to, in combination with the vertical support shaft, fasten the rim crossing through and/or resting on a hub of the rim; and a machining device mounted in a movable manner in the frame, configured to machine the rim.

A method for producing an automobile rim from aluminum or an aluminum alloy for a wheel of a motor vehicle. The automobile rim has a rim well delimited on opposite sides by an outer flange and an inner flange, a hub having a center recess and a bolt hole circle, and a rim center connecting the rim well and the hub to one another. The automobile rim is produced integrally and continuously in a casting mold by die casting of a casting material. After the introduction of the casting material into the casting mold, a volume of the casting mold is reduced for post-compaction of the casting material. The invention furthermore relates to a device for producing an automobile rim.

A method for producing an automobile rim from aluminum or an aluminum alloy for a wheel of a motor vehicle. The automobile rim has a rim well delimited on opposite sides by an outer flange and an inner flange, a hub having a center recess and a bolt hole circle, and a rim center connecting the rim well and the hub to one another. The automobile rim is produced integrally and continuously in a casting mold by die casting of a casting material. After the introduction of the casting material into the casting mold, a volume of the casting mold is reduced for post-compaction of the casting material. The invention furthermore relates to a device for producing an automobile rim.

A method for manufacturing a vehicle wheel includes: a casting process of manufacturing the wheel in a one-piece body having a forming end and a temporary flange protruding at inner and outer sides of the wheel, respectively, wherein the one-piece body further includes a resonance chamber forming groove; a primary shape machining process of forming a stepped part at an outer circumferential side of the resonance chamber forming groove; a flow forming process of bending the forming end to be seated on the stepped part; a friction stir welding process of integrally bonding a portion where the forming end and the stepped part are in close contact with each other; a fine machining process of removing the temporary flange; and a sound-absorbing hole machining process of forming a sound-absorbing hole for communicating between the resonance chamber and an interior space of a tire in the forming end.

A method for manufacturing a vehicle wheel includes: a casting process of manufacturing the wheel in a one-piece body having a forming end and a temporary flange protruding at inner and outer sides of the wheel, respectively, wherein the one-piece body further includes a resonance chamber forming groove; a primary shape machining process of forming a stepped part at an outer circumferential side of the resonance chamber forming groove; a flow forming process of bending the forming end to be seated on the stepped part; a friction stir welding process of integrally bonding a portion where the forming end and the stepped part are in close contact with each other; a fine machining process of removing the temporary flange; and a sound-absorbing hole machining process of forming a sound-absorbing hole for communicating between the resonance chamber and an interior space of a tire in the forming end.

The invention relates to a method and a device for spin forming, wherein a workpiece is set in rotation by means of a spindle and at least one outer roller is positioned at an outer side of the workpiece. With material thinning, an axially extending lateral region of the workpiece is shaped. According to the invention, it is provided that at least one inner roller is positioned at an inner side of the workpiece by means of an inner support, which is displaceable axially and radially relative to the axis of rotation independently of the outer roller. By means of a CNC control unit, the inner support with the inner roller and an outer support with the outer roller are displaced individually, wherein there is formed at the lateral region a defined wall thickness profile with different wall thicknesses between the at least one outer roller and the at least one inner roller.

A method and apparatus for straightening dents and irregularities in wheels including a spindle, a platen mounted on the spindle configured such that the wheel can be mounted on the spindle with the spindle projecting through the central hub hole and at least one actuator device positionable between the spindle and a section of the wheel to be straightened, the actuator exerting a straightening force on the rim of the wheel and a mobile device including the same.

A wheel outer rim fillet dressing device, wherein after a wheel is roughly positioned, an electric cylinder drives a moving plate to descend to an appropriate position, an adjusting cylinder drives a second sliding table to move away from a first sliding table, the first sliding table moves synchronously with the second sliding table under the action of a second gear rack, thus the distance between a precision positioning post on the first sliding table and a precision positioning post on the second sliding table is adjusted, and the precision positioning posts contact a vertical surface of a cap seam allowance of the wheel and hold the wheel tightly. The adjusting cylinder is restarted, and the outer rim fillets can be dressed when the distance between first and second cutters for dressing wheel outer rim fillets is adjusted to an appropriate position and under the cooperation of the rotating wheel.

A wheel outer rim fillet dressing device, wherein after a wheel is roughly positioned, an electric cylinder drives a moving plate to descend to an appropriate position, an adjusting cylinder drives a second sliding table to move away from a first sliding table, the first sliding table moves synchronously with the second sliding table under the action of a second gear rack, thus the distance between a precision positioning post on the first sliding table and a precision positioning post on the second sliding table is adjusted, and the precision positioning posts contact a vertical surface of a cap seam allowance of the wheel and hold the wheel tightly. The adjusting cylinder is restarted, and the outer rim fillets can be dressed when the distance between first and second cutters for dressing wheel outer rim fillets is adjusted to an appropriate position and under the cooperation of the rotating wheel.