The present invention relates to a composite wheel deburring device, which is composed of a stand, servo motors, guide rails, a first brush system, a second brush system, and a synchronous clamping rotary system. During use, the first servo motor drives first brush to rotate, and a second servo motor drives a second brush to rotate; the second brush starts to remove rim corner burrs at flanges of the wheel; right servo electric cylinder enables the first brush to move to an appropriate position, and jacking cylinder enables the first brush to perpendicularly come in contact with window rim corners at the roots of the flanges by a second guide rail, so that rim corner burrs at the position can be well removed; and upper servo electric cylinder adjusts the angle of the second brush to an appropriate angle, so that rim corner burrs of wheel rims are removed.

A polishing method and a polishing film are provided for automatically performing multi-stage batch polishing on an end surface of a workpiece. An end surface of a workpiece and a polishing plate are moved relative to each other while bringing the end surface of the workpiece into contact with a polishing film of the polishing plate. The end surface is moved in a circular motion with a diameter 2 R relative to the polishing film; the center of the circular motion is moved linearly by a distance S on the polishing film; the polishing film is provided with first, second, and third polishing surfaces; and the polishing film is further provided with cleaning surfaces between the polishing surfaces so that the range of the distance S in which one rotation in the circular motion crosses over different polishing surfaces is reduced, or does not cross over different polishing surfaces.

Methods and apparatus for orienting and operating grinding motors and their associated mechanical parameters for rail applications are described. A method for determining a parameter for operation of grinding motors on a grinding vehicle, may include: receiving a rail profile, comparing the rail profile with a target rail template to provide a comparison result, and determining, by a processor, based on the comparison result, one or more of a grinding motor's orientation, power, and speed.

A grinding machine for grinding of workpieces with an internal profile, having a grinding arm in which at least one grinding wheel is supported for grinding of the profile of the workpiece and a reception which is arranged at the grinding machine for holding the grinding arm. To facilitate the change of the grinding arm and thereby nevertheless to ensure a precise position of the same relatively to the reception the invention proposes that the grinding arm comprises at least two clamping pins being spaced apart from another and that the reception comprises two corresponding recesses for the reception of the clamping pins, wherein in the reception locking means are arranged by which the clamping pins can be locked in the recesses so that the grinding arm is detachably fixed in a defined position relatively to the reception.

According to various embodiments, there is provided a grinding module including a base; a cylinder mounted to the base with a longitudinal axis of the cylinder arranged at least substantially perpendicular to a surface of the base, wherein the cylinder is rotatable about the longitudinal axis of the cylinder, and wherein a cylindrical surface of the cylinder is adapted to receive a grinding belt; a linear actuator mounted to the base with a centreline of linear motion of the linear actuator arranged to intersect the longitudinal axis of the cylinder; and a holder connected to the linear actuator, the holder adapted to hold a workpiece with a surface of the workpiece facing the cylindrical surface of the cylinder, wherein the linear actuator is adapted to move the holder relative to the cylinder along the centreline of linear motion of the linear actuator, and wherein the cylindrical surface of the cylinder is adapted to define a curved profile so that the grinding belt is adapted to grind and shape the surface of the workpiece to conform to the curved profile.

A size-adjustable adaptive online wheel deburring device, including a synchronous clamping and rotating system for fixing and rotating a wheel, a left brush system, and a right brush system. The left brush system includes a first belt-type brush with a T-shaped synchronous belt at its inner side and bristles at its outer side, and a first automatically adjusting mechanism for changing a shape of the first brush by engaging the T-shaped synchronous belt so that the shape of the first brush is able to match different back cavity shapes of the wheel during burr removal. The right brush system includes a second belt-type brush and a second automatically adjusting mechanism for changing a shape of the second brush so that the second brush is constantly in three-point contact with a position of the wheel to be deburred during the burr removal.

A size-adjustable adaptive online wheel deburring device, including a synchronous clamping and rotating system for fixing and rotating a wheel, a left brush system, and a right brush system. The left brush system includes a first belt-type brush with a T-shaped synchronous belt at its inner side and bristles at its outer side, and a first automatically adjusting mechanism for changing a shape of the first brush by engaging the T-shaped synchronous belt so that the shape of the first brush is able to match different back cavity shapes of the wheel during burr removal. The right brush system includes a second belt-type brush and a second automatically adjusting mechanism for changing a shape of the second brush so that the second brush is constantly in three-point contact with a position of the wheel to be deburred during the burr removal.

A method of repairing a defect in a damaged rail of a railroad track comprises positioning a rail profiling device on the rails of the railroad track proximate a defect; securing the rail profiling device to the railroad; adjusting its grinder according to a selected value of wheel cone angle to create a profiled running surface over a portion of the damaged rail; creating a median zone using the grinder to remove material from the damaged rail adjacent the defect at a depth corresponding to at least a maximum depth of the defect; creating an incline from the top of the rail and leading to the median zone and one incline leaving the median zone to the top of the rail by using the grinder to grinding material off the damaged rail.

There are disclosed systems and methods for safely and effectively removing the articular cartilage and cortical bone layers from an articular surface of a human cadaveric femoral head. One embodiment includes an osseous-sanding accessory system installed upon a conventional band saw having a motor and a cabinet that houses a pulley coupled with a primary drive shaft rotated by the motor. The accessory system may include a threaded drive shaft coupled with the primary drive shaft, a grinding disk having an abrasive surface and affixed about a distal end of the threaded drive shaft, and a removable accessory table mounted to the band saw below the grinding disk. When the motor rotates the primary drive shaft, and thus the threaded drive shaft, the grinding disk rotates relative to the accessory table and abrades osseous tissues introduced to the abrasive surface of the grinding disk. Other embodiments are also disclosed.

A gear grinding machine uses a grindstone tool, having an outer circumference that includes a thread, to grind a tooth surface of a gear workpiece. In this case, coolant is supplied toward the tooth surface from a trailing side in a rotation direction of the gear workpiece through a space between the grindstone tool and the gear workpiece. The coolant is drawn into the meshing portion between the grindstone tool and the gear workpiece by the rotation of the gear workpiece and the movement of the thread of the grinding tool.