摘要:
A manufacturing apparatus for producing a curved contour on an end face of a roll includes a grinding device and a holding device, linearly movable relative to the grinding device. The grinding device is for grinding the curved contour on the end face. The holding device is for holding the roll between the holding device and the grinding device. A method for producing the curved contour on the end face using the manufacturing apparatus is also disclosed. The method includes driving the holding device to move in a linear fashion relative to the grinding device.
摘要:
A roller for a roller bearing has a first end surface and a second end surface and a rolling surface between the first and second end surfaces. The first end surface has an at least partially ground profile having a non-constant curvature such as a logarithmic profile. Also, an assembly including a grinding tool and a roller with an end surface having a ground non-constant curvature.
摘要:
A system and method that includes, in an embodiment, a prism, a camera, a light source, and a plate. The system, in an embodiment, is configured for scanning a roll and generating an image of the roll surface. The prism, in an embodiment, is positioned below the camera and above the plate. In an embodiment, the plate is positioned below the prism and above the roll surface. In an embodiment, the light source is positioned above the prism. In an embodiment, the light source and the prism are positioned to provide light to the roll surface at an angle of at least 75 degrees measured from a line normal to the roll surface. In an embodiment, the prism is configured to refract light from the light source, the camera is a line scan camera that includes a row of pixel sensors, and the light source includes light emitting diodes.
摘要:
The present invention provides an apparatus for resurfacing a rotating elastomer substrate. The apparatus utilizes a motorized grinding wheel, said motorized grinding wheel rotating in a direction counter to the rotating elastomer substrate and having an axis of rotation parallel to the axis of rotation of the rotating elastomer substrate, wherein the perpendicular distance between the motorized grinding wheel and the rotating elastomer substrate is adjustable so as to control the amount of elastomer substrate that is removed; and a mount for said motorized grinding wheel, wherein said mount is located proximal to the rotating elastomer substrate that comprises a part of a production line and wherein the mount is capable of traversing parallel to the rotating elastomer substrate.
摘要:
A method of grind hardening a workpiece is provided. The method may include securing the workpiece in a workpiece retainer and a grind tool in a tool retainer, rotating the grind tool in a first angular direction at a first angular speed, controlling the workpiece and tool retainers such that the grind tool engages the workpiece, and controlling the workpiece and tool retainers such that the grind tool is guided along a grinding track of the workpiece. The grind tool may engage and/or disengage the workpiece at portions of sacrificial material disposed thereon. Coolant and cleaning nozzles may be provided and controlled such that at least a portion of the coolant from the coolant nozzle is diverted to the cleaning nozzle in a manner which reduces heat dissipation, improves thermal efficiency of the grind hardening and reduces loading of the grind tool.
摘要:
A method for grinding a surface of a rolling element for a roller bearing, the method including scrolling the surface along a trajectory extending successively over at least one draft band and over at least one finishing band of a grinding wheel, each one of the bands being formed from a binder wherein an abrasive is dispersed, the method providing that the binder of the finishing band be of an epoxy resin base, the binder of the draft band being of an organic resin base of a different chemical nature and comprising an abrasive of which the size of the grains is greater than that of the abrasive of the finishing band.
摘要:
A system and method that includes, in an embodiment, a prism, a camera, a light source, and a plate. The system, in an embodiment, is configured for scanning a roll and generating an image of the roll surface. The prism, in an embodiment, is positioned below the camera and above the plate. In an embodiment, the plate is positioned below the prism and above the roll surface. In an embodiment, the light source is positioned above the prism. In an embodiment, the light source and the prism are positioned to provide light to the roll surface at an angle of at least 75 degrees measured from a line normal to the roll surface. In an embodiment, the prism is configured to refract light from the light source, the camera is a line scan camera that includes a row of pixel sensors, and the light source includes light emitting diodes.
摘要:
Push roll spools for engaging and driving softened glass tubes over a shaping mandrel. A push roll spool for use in processing a glass tube may comprise a base having first and second axially spaced ends, and multiple sheets of heat resistant material disposed on the base between the axially spaced ends, forming an axially extending stack. The stack may have a circumferential, generally U-section groove having a profile defined by the peripheral edges of multiple said sheets having different diameters. The U-section groove may be sized to engage and drive a glass tube. The U-section groove may have two contact areas at which to engage and drive a glass tube. The heat resistant material may comprise mica or a mica composition, for example mica paper or ceramic fiber millboard.
摘要:
In a machine for centerless cylindrical grinding, the workpiece is located in a grinding gap, which is formed by the regulating wheel, the grinding wheel and the support blade. The regulating wheel rotates about its axis of rotation with the direction of rotation, and thereby drives the workpiece to rotate in the direction of rotation. The grinding wheel is driven to rotate about its axis of rotation with the direction of rotation. The workpiece passes in the direction of its longitudinal axis through a number of sets of regulating wheels and grinding wheels, which are each themselves arranged coaxially one behind the other. The regulating wheels and grinding wheels have axial interspaces on their axes; the regulating wheels thereby engage in the interspaces between the grinding wheels, and vice versa, so as to form lateral regions of overlap between the wheels.
摘要:
A grinding device for the surface treatment of rolls, for example of rolls for machines producing, finishing and/or processing webs, such as paper, cardboard or tissue machines, includes stationary components and mobile components which can be separated from each other. The stationary components include guide rails, which extend substantially in parallel to a roll axis of the roll to be treated and which are connected to a substructure. Thus, the stationary components, such as the guide rails, can remain at the place of use of the rolls, while the components that are mobile or can be transported can be easily separated from the stationary components and can be transported to other locations.