Methods and machine tools for grinding discs. The machine tool comprises two grinding units with respective grinding spindles on which grinding wheels are arranged and a disc unit that comprises a disc spindle on which the disc to be grinded is arranged. The rotation axes of the grinding spindles are perpendicular to the disc spindle rotation axis. The grinding wheels comprise respective grinding surfaces which are perpendicular to the rotation axis of the disc spindle. The grinding surfaces have a width that is equal or greater than the width of the main surfaces of the disc. The two grinding units are configured to simultaneously move relative to the disc unit in an axis that is parallel to the rotation axis of the disc spindle and in opposite directions such that, in use, the grinding surfaces simultaneously contact opposite surfaces of the disc to grind them down.

The invention concerns a rolling unit for machining the wheel running surfaces of wheelsets for rail vehicles, with the rolling unit featuring at least one work roller by means of which the wheel running surface to be machined is subjected to a deep rolling process following manufacture of the wheelset in new condition or, at a later date, after reprofiling to increase the service life of the wheel running surfaces. The task is solved to create a relevant rolling unit by means of which the wheel running surfaces can be deep-rolled in the forward feed process using work rollers. This task is solved by the rolling unit featuring a base body on which a support arm is located in a vertical position to the base area, on which a receptacle is supported that is unilaterally fixed in position via a thread in the support arm and on which an angular contact ball bearing is located; this supports at least one work roller featuring at least two different rolling radii.

What is shown and described here is a device for machining, in particular for simultaneously machining multiple wheelsets of a rail vehicle, comprising: a first underfloor wheelset lathe for reprofiling wheels and brake discs of a first wheel set of a rail vehicle, and a second underfloor wheelset lathe for reprofiling wheels and brake discs of a second wheelset of a rail vehicle. In order to allow simultaneous machining of multiple wheelsets of a rail vehicle in the installed state, it is proposed that the distance between the second underfloor wheelset lathe and the first underfloor wheelset lathe be adjustable. What is shown and described here in addition is a method for machining, in particular for simultaneously machining multiple wheelsets of a rail vehicle.

What is shown and described here is a device for machining, in particular for simultaneously machining multiple wheelsets of a rail vehicle, comprising: a first underfloor wheelset lathe for reprofiling wheels and brake discs of a first wheel set of a rail vehicle, and a second underfloor wheelset lathe for reprofiling wheels and brake discs of a second wheelset of a rail vehicle. In order to allow simultaneous machining of multiple wheelsets of a rail vehicle in the installed state, it is proposed that the distance between the second underfloor wheelset lathe and the first underfloor wheelset lathe be adjustable. What is shown and described here in addition is a method for machining, in particular for simultaneously machining multiple wheelsets of a rail vehicle.

The invention concerns a rolling unit for machining the wheel running surfaces of wheelsets for rail vehicles, with the rolling unit featuring at least one work roller by means of which the wheel running surface to be machined is subjected to a deep rolling process following manufacture of the wheelset in new condition or, at a later date, after reprofiling to increase the service life of the wheel running surfaces. The task is solved to create a relevant rolling unit by means of which the wheel running surfaces can be deep-rolled in the forward feed process using work rollers. This task is solved by the rolling unit featuring a base body on which a support arm is located in a vertical position to the base area, on which a receptacle is supported that is unilaterally fixed in position via a thread in the support arm and on which an angular contact ball bearing is located; this supports at least one work roller featuring at least two different rolling radii.

A wheel deburring device includes a machine frame, a wheel delivery and positioning mechanism mounted in the frame, and a brush for brushing off burrs from a wheel. The brush is movably mounted to the frame through a rising and falling plate and a sliding plate rack connected with the plate via first guide rails, the brush being able to rotate by a servo motor mounted in the frame and to rise and fall by a rising and falling cylinder. A first servo electric cylinder is mounted so that the first cylinder can adjust angles of the brush. A second servo electric cylinder is fixed at one side of the rising and falling plate, and its output end is connected with the rack so that the second cylinder can adjust positions of the brush through first guide rails.

A wheel deburring device includes a machine frame, a wheel delivery and positioning mechanism mounted in the frame, and a brush for brushing off burrs from a wheel. The brush is movably mounted to the frame through a rising and falling plate and a sliding plate rack connected with the plate via first guide rails, the brush being able to rotate by a servo motor mounted in the frame and to rise and fall by a rising and falling cylinder. A first servo electric cylinder is mounted so that the first cylinder can adjust angles of the brush. A second servo electric cylinder is fixed at one side of the rising and falling plate, and its output end is connected with the rack so that the second cylinder can adjust positions of the brush through first guide rails.

The present invention relates to a wheel deburring device, which comprises a machine frame, motors, guide rails, a lead screw, sliding tables, cylinders, a brush, etc. Conveying roller ways enable a wheel to reach approximate middle positions of four V-type rollers, the wheel is lifted by lifting cylinders, a pneumatic motor drives the lead screw to rotate so as to enable a left sliding table and a right sliding table to drive the four V-type rollers to synchronously clamp the wheel, and a drive motor is used for achieving the rotation of the wheel in a clamped state. A servo motor drives the brush to rotate, rising and falling cylinders lift the brush through four guide posts, certain pressure is applied to the brush when the brush is in contact with flange corners of the wheel, then, the brush starts to remove burrs from the flange corners of the wheel, a servo electric cylinder I is used for achieving angle adjustment on the brush, and a servo electric cylinder II is used for achieving position adjustment on the brush through guide rails I; and when the brush is adjusted to an appropriate angle, the burr removal of rim corners can be completed, and thus the wheel deburring device can adapt to wheels of any model.