摘要:
A bristle carrier for leaning a polishing apparatus comprises a number of radial slots into which sub-frames carrying bristles can be releasably mounted. The bristle carrier is used in place of a component carrier used during normal polishing, and is driven in planetary fashion over clothed polishing surfaces to clean those surfaces. The same carrier can be used, even when the bristles have to be replaced due to wear, by replacing the sub-frames having new bristles.
摘要:
A method and apparatus for the superfinishing of workpieces, particularly workpieces driven in rotary manner with the aid of a superfinishing tool driven in rotary manner proposes that although the superfinishing tool is driven, it is held in fixed manner. Infeeding takes place solely through the infeeding movement of the workpiece to be worked, which leads to a greater rigidity of the apparatus and at the same time a very simple construction.
摘要:
A method and apparatus for conditioning a polishing pad improves the polishing characteristics of the pad by providing an embedded pattern that facilitates polishing and reduces glazing. Moreover, the present invention conditions a pad without significantly abrading the polishing surface, thereby prolonging the pad's useful life. A series of independently rotatable rollers having a knurled outer surface is used to embed a pattern of score marks in the surface of the polishing pad. Alternatively, a knurled conical roller engages a radius of the pad. The apparatus is adaptable to either manual or automated processes. The present invention is particularly useful for conditioning polishing pads used in the fabrication of semiconductor wafers.
摘要:
A cutting compact has a superhard abrasive layer bonded to a substrate layer, wherein the configuration of the interface between abrasive and substrate layers is a non-planar, or three dimensional, interface which increases the surface area between the layers available for bonding and optimizes the structural integrity of the compact according to its desired application. In one embodiment, the topography between the substrate and abrasive layers of the compact is characterized by interlocking concentric circular grooves and channels of varying width, depth and shape. In another embodiment, the interface between the grooves and channels is rounded and smooth. In additional embodiments, the grooves and channels are positioned on substantially angled interfaces or substantially curved interfaces. Additional configurations of the present invention provide that the grooves alternatingly start and stop along the path in interfacing with their respective channels. Yet additional configurations disclosed include variations in the width of the groove/channel along the diameter of the abrasive layer and the substrate layer. The present invention thus provides an increased mechanical interlock between the abrasive layer and the substrate layer. The increased surface area between the substrate and abrasive layers promotes the sintered bond between the layers, thereby improving resistance to spalling or delamination of the abrasive layer from the substrate layer. Another advantage is that the number, depths and widths of the channels can be adjusted to meet the desired performance characteristics of the compact and to strengthen points of particular stress according to specific applications of the compact.
摘要:
A method of forming sliding surfaces, wherein a first plating layer with a relatively high level of hardness is formed by using a first plating liquid which is at a relatively low temperature; and a second plating layer with a hardness lower than that of the first plating layer is formed on the surface of the first plating layer by using a second plating liquid which is at a temperature higher than that of the first plating liquid; the second plating layer being honed to a predetermined thickness.
摘要:
An internal grinder for grinding or polishing the inner surface and the like of a cylinder or ring gauge. A plurality of grind stones (256) are held by a grind stone holding member (251) in a manner to be movable in the radial directions of a spindle (203) and a projection value adjusting member (241) having engaged therewith the plurality of grind stones (256), respectively, is rotated relative to said grind stone holding member (251), whereby the plurality of grind stones (256) are adjusted in their projection values.
摘要:
A device for controlling the expansion of an expansible grinding tool includes control means for effecting controlled axial movement of a cone in the tool. The control means includes a screw engaging a fixed nut and controllably rotatable by a driving motor, the resultant axial movement of the screw being transmitted to the cone. The expansion control device is provided in the form of a removable grinding head unit arranged to be inserted between a grinding machine and the grinding tool. The grinding head unit also includes means for transmitting rotary motion from the grinding machine to the grinding tool.
摘要:
It is desirable to provide a relatively coarse finish at one end of an inner cylindrical wall of a cylinder or a cylinder liner and a relatively finer finish towards another end of said inner cylinder wall. A honing member is provided for rotation and oscillation in contact with the inner cylinder walls. A first section of the honing member has a relatively coarse grit surface and a second section of the honing member has a relatively fine grit surface. The abovementioned oscillation and rotation of such a honing member comprises an improved method for honing a cylindrical wall.
摘要:
A honing machine using a robot to load gears into a loadbox at a loadbox station. The loadbox moves downstream to a position over an empty pallet in a pallet load station where the gears are released into the empty pallet. A series of downstream machining stations performing a series of honing operations on the bores of the gears in a series of pallets. A removal mechanism removing the honed gears simultaneously from the pallet at a pallet unload station. An overhead gripper on a movable gantry grips the empty pallet at the unload station and returns the pallet to the pallet load station where the pallet is reloaded with additional gears from the loadbox. The honing machine can continuously hone gears using only one pallet at each machining station and one pallet at the pallet loading station.
摘要:
A honing machine includes a machine housing enclosing a workpiece spindle and a tool spindle. The workpiece spindle includes a spindle collar with a spindle head configured to hold a workpiece. The tool spindle includes a cup-shaped holder with a honing ring located on an inside of the cup shaped holder. An operating tank is also located within the machine housing, where the operating tank surrounds the tool spindle in an oil-tight manner. The operating tank includes a panel with a recess, where the workpiece spindle is configured to insert the spindle head through the recess and form a first oil-tight seal between the recess and the spindle collar. The panel is moveable relative to the operating tank and tool spindle when the panel is carried along by the workpiece spindle during a feed motion. A second oil-tight seal is formed between the panel and the operating tank.