APPARATUS FOR PRODUCING IMPROVED CUTTING EDGES

    公开(公告)号:US20240424632A1

    公开(公告)日:2024-12-26

    申请号:US18339276

    申请日:2023-06-22

    Abstract: An apparatus is provided for forming cutting edges including a grinding stage. The grinding stage includes abrading wheels with a strip receiving end configured to receive a strip with a first profile along a path P and a strip exiting end. Axes of the abrading wheels are oriented at a tilt angle relative to the path P. Lands are provided on each abrading wheel with an abrasive surface that varies from fine to coarse in a direction from the strip receiving end to the strip exiting end. The lands are arranged in a spiral helix such that the helix is a right-handed thread on one wheel and a left-handed thread on the other wheel. An improvement is also provided for a system for removing material from a strip of metal incident on the system along a path P.

    Device for grinding saw teeth and a corresponding method

    公开(公告)号:US12064825B2

    公开(公告)日:2024-08-20

    申请号:US17885674

    申请日:2022-08-11

    Inventor: Martin K. Klug

    Abstract: A device for grinding pre-milled and hard metal-tipped teeth of saw bands, is provided. The device comprises a feed device for feeding a temporarily formed workpiece in a timed manner, wherein the temporarily formed workpiece is formed from a plurality of saw bands which are parallel to one another. The device further comprises a clamping device which clamps the plurality of saw bands against one another, and a grinding unit for simultaneously grinding a plurality of teeth. The grinding unit comprises a grinding wheel with a plurality of grinding profiles. A corresponding method is also provided, where the grinding unit grinds both the tooth backs and the tooth faces to final dimension in exactly one linear movement.

    Grinding machine for raised joints of rivets on sheet metal

    公开(公告)号:US11407078B2

    公开(公告)日:2022-08-09

    申请号:US16443752

    申请日:2019-06-17

    Abstract: A grinding device for raised joints of rivets on sheet metal is provided, including a lateral plate, legs, a moving plate, first springs, a first bearing seat, a sleeve, a grinding wheel, a moving bar, a 7-shaped plate, a vertical bar, a second spring, an oscillating plate, etc. The legs are fixedly connected, in a symmetric manner, to left and right sides of the bottom of the lateral plate. A through hole, which has a function of guiding, is formed on a left side of the lateral plate. The moving bar is located in the through hole. In the present disclosure, a driving motor is started to rotate the grinding wheel, the grinding device is moved to enable the grinding wheel to be located above a raised joint, and then the oscillating plate is pulled so that the grinding wheel can move downward to grind the raised joint.

    Apparatus and method for correcting damage to rails and railway crossovers

    公开(公告)号:US10814453B2

    公开(公告)日:2020-10-27

    申请号:US15943814

    申请日:2018-04-03

    Abstract: 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.

    ABRASIVE MACHINING
    6.
    发明申请
    ABRASIVE MACHINING 审中-公开

    公开(公告)号:US20200215659A1

    公开(公告)日:2020-07-09

    申请号:US16712782

    申请日:2019-12-12

    Abstract: A method of manufacturing a rotary abrasive machining tool, the rotary abrasive machining tool including a hub and a plurality of abrasive segments mounted to the hub, the method including the steps of: mounting each abrasive segment on the hub; machining an abrading edge on each abrasive segment while the abrasive segment is mounted on the hub.

    Joint sawing system for concrete barriers

    公开(公告)号:US10407854B2

    公开(公告)日:2019-09-10

    申请号:US15594089

    申请日:2017-05-12

    Abstract: A system and a method for sawing control joints in concrete barriers is provided. The system includes a barrier mounting frame slidably mountable about the barrier, on the top, first and second lateral faces of the barrier. The system also includes a saw attachment having a circular saw attached thereto, the circular saw being manually operable. A linkage assembly connects the frame mounting barrier to the saw attachment, and allows to manually move the circular saw up or down, and towards or away from the barrier, when in use, to create the control joint transversally along the top, first and second lateral faces of the barrier.

    Wind turbine blades
    8.
    发明授权

    公开(公告)号:US10232528B2

    公开(公告)日:2019-03-19

    申请号:US15035932

    申请日:2014-11-10

    Abstract: A method of making a longitudinal reinforcing structure for a wind turbine blade. The method comprises a) providing an elongate master strip (62) of reinforcing material having substantially flat first and second surfaces, the distance between the first and second surfaces defining the thickness of the master strip; and b) dividing the master strip transversely to form a first strip and a shorter master strip, the respective strips being arranged end to end such that a trailing end of the first strip is located adjacent a new leading end of the master strip. The step of dividing the master strip comprises removing material from a dividing region extending through the entire thickness of the master strip, wherein the dividing region is shaped such that a chamfer (19c) at the trailing end (19b) of the first strip is created and a chamfer (63a) at the new leading end (63) of the master strip is created when the master strip is divided.

    A GRINDING MODULE, A GRINDING MACHINE AND A METHOD FOR GRINDING

    公开(公告)号:US20180311785A1

    公开(公告)日:2018-11-01

    申请号:US15770151

    申请日:2015-10-21

    Inventor: Yong Wee LIU

    CPC classification number: B24B41/06 B24B21/16 B24B41/02

    Abstract: 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.

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