Abstract:
The present invention provides an improved planarization or polishing apparatus for chemical mechanical planarization and other types of polishing such as metal polishing and optical polishing. In an exemplary embodiment, an apparatus for polishing an object (115) comprises a pad (117) having a polishing surface to be placed on the target surface of the object (115) to be polished. A pad drive member (116) is connected to the pad to move the pad relative to the object to chenge a position of the polishing surface of the pad on the target surface of the object. A drive support (251) is movably coupled with the pad drive member (116) to support the pad drive member (116) for rotation relative to the drive support around a pivot point (252) which is disposed substantially on the target surface of the object (115) during polishing.
Abstract:
A machine for abrading or polishing a workpiece (5) comprises a holding surface holding the workpiece, a head member (7) arranged along a rotation axis to rotate about the rotation axis, a working member (8) having a surface for abrading or polishing the workpiece (5) arranged on the head member on the rotational axis (h) for rotation about the rotation axis with the head member, a first driving arrangement for driving a head member and the working member mounted thereon to rotate about the rotation axis, a head mounting arrangement for mounting the head member, a second driving arrangement (700) for driving the head mounting arrangement to incline the rotation axis of the head member relative to a precession axis intersecting the rotation axis, and for moving the head member to inclined positions with the rotation axis precessed about the precession axis, and a third driving arrangement (800) for relatively moving the head mounting arrangement across the holding surface.
Abstract:
The invention relates to a grinding machine comprising at least one bed, feed slides and a grinding table with superstructures, which further presents a turning-tool holding fixture (6) for hard machining. The invention also relates to a method for machining a workpiece (1) in a grinding machine, according to which the workpiece (1) is hard-machined by turning in said grinding machine.
Abstract:
The invention concerns a drive for a grinding disc of a cam grinding machine, wherein an electrical motor with a drive wheel (3) is provided, said drive wheel (3) being fitted with evenly spaced annular recesses (30) and the annular recesses (30) being fitted with permanent magnets (22) on the radial surfaces. A grinding spindle rotor (4) with evenly spaced annular recesses (29) is provided, the radial surfaces of the annular recesses (29) being fitted with permanent magnets (23), wherein the annular recesses (30) that are fitted with permanent magnets (22) of the drive wheel (3) and the rotor (4) engage with each other.
Abstract:
A grinding machine, in particular a face grinder for grinding the faces of silicon wafers, has a grinding wheel spindle (20) and a work spindle (22) which are mounted so as to be pivotal about axes (A and B) respectively, each axis being perpendicular to the rotational axis of its respective spindle and being orthogonal to the rotation axis of the other spindle. Three sensors or probes (1 to 3) are provided to measure the position of one spindle relative to the other and to generate signals for controlling servo motors (26, 28) for adjusting the angular orientation of each spindle about its pivotal axis.
Abstract:
A rotary joint for a fluid capable of fluidizing under a seal state a polishing solution between relative rotary members and supplying power to a polishing surface detector, wherein a series of polishing solution passages (7) communicating with one another through seal spaces (50) sealed by a pair of seal devices equipped with seal rings (51, 52) rotating and sliding relatively to each other are defined between a joint main body (1) and a rotary body (2). A power distribution route reaching the polishing surface detector (110) comprises a rotary connector (4) for connecting a first connector (41) on the side of a casing (40) held by the rotary body and a second connector (42) on the side of the joint main body in such a manner as to be capable of rotating relative to each other, a cable (42a) extending from a power source (3) to the second connector and a cable (41a) extending from the first connector to the polishing surface detector through a cable insertion passage (24) formed in the rotary body.
Abstract:
A grinding machine provided with a spindle (5) rotating under the influence of a cantilever mounted rare earth permanent magnet motor (40). Hydrostatic fluid film bearings (41, 42) are provided between the ends of the spindle (5) and a bronze bearing (64, 65) to support spindle (5) in such a manner so as to eliminate wear. A single oil reservoir (20) is used to supply oil to the hydrostatic bearings (41, 42), as well as to the cooling jacket labyrinth (17) of the motor (40).
Abstract:
Bereitgestellt wird eine Werkstückbearbeitungsvorrichtung (1), insbesondere Schleifvorrichtung, mit zumindest einem Spindelmodul (10.1) und einem Werkzeugwechsler (30), wobei - das Spindelmodul angepasst ist, ein Werkzeug (13.1), insbesondere Schleifscheibe, zur Bearbeitung eines Werkstückes (40) aufzunehmen, - das Spindelmodul entlang einer vertikalen Translationsachse (Y3) verfahrbar an einem Spindelmodulhalter (5) angeordnet ist, - wobei das Spindelmodul (10.1) eine Spindel (11.1), insbesondere Schleifspindel, zur Aufnahme des Werkzeuges und einen Abrichter (12.1) aufweist, wobei der Abrichter und die Spindel unabhängig voneinander und relativ zueinander an dem Spindelmodul (10.1) verfahrbar sind, und - der Werkzeugwechsler (30) angepasst ist - zumindest ein Werkzeug aus einem Werkzeugmagazin (35) zu entnehmen und an einer Spindel (11.1,11.2) zu befestigen und - ein an einer Spindel befestigtes Werkzeug aufzunehmen und in dem Werkzeugmagazin abzulegen.