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7591710 |
Polishing machine comprising a work chamber and a platform
A polishing machine for optical elements, comprising:
a spindle arranged to rotationally drive an optical element; a polishing tool mobile relative to the spindle; wherein the polishing...
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7497761 |
Tool for automatically assembling-disassembling a tire to/from a wheel rim
The present invention relates to a tire assembling-disassembling tool for use in a tire assembling-disassembling machine arranged to rotatable support a tired wheel or wheel rim, said tool being...
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7048616 |
Grinding apparatus for grinding an out-of-round trunnion or tire for a rotary kiln
The present invention relates to a grinding apparatus for grinding an out-of-round trunnion tire for a rotating kiln. The present invention is mounted on a trunnion roller such that a tracking...
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7001248 |
Fine tilting adjustment mechanism for grinding machine
Provided is a grinding machine comprising a carrier adapted to raise or lower, the carrier including a V-shaped groove across its top and a forward pad at either side, a spindle unit including an...
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7001247 |
Processing apparatus provided with backpressure sensor
To prevent a blowout nozzle from colliding with a workpiece due to a trouble of a backpressure sensor so as to avoid damage to the workpiece in a processing apparatus provided with a backpressure...
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6949009 |
Rotating kiln tire refinishing machine
A kiln tire grinder for grinding an out-of-round kiln tire comprising a grinding belt head assembly having a rotatable grinding belt and an x-y positioning table for positioning the rotating...
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6893323 |
Method of and apparatus for removing material
Apparatus for removing material from a workpiece is described, in which the apparatus comprises means for advancing an abrasive tool towards the workpiece to bring an abrasive surface of the tool...
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6887130 |
Chemical mechanical polishing apparatus
A chemical mechanical polishing (CMP) apparatus includes a plate that holds a substrate, a pad assembly unit comprising a pad support device, a positioning device, and a rotation device operatively...
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6796885 |
Pad conditioner coupling and end effector for a chemical mechanical planarization system and method therfor
A pad conditioner coupling ( 58 ) holds an end effector ( 57 ) for abrading a polishing media surface. Pad conditioning planarizes the polishing media surface, removes particulates, and roughens...
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6729938 |
Centerless grinding machine
A centerless grinder 1 according to the present invention comprises a bed 108 , a grinding wheel spindle stock 101 , a regulating wheel spindle stock 102 , a work rest 103 , and the like. The...
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6561871 |
Linear drive system for chemical mechanical polishing
A linear drive mechanism for chemical mechanical polishing includes a substrate carrier and support system which employs at least one linear motor to drive the substrate carrier through polishing...
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6500047 |
Semiconductor wafer cutting machine
A cutting machine comprises a chucking means for holding the semiconductor wafer that is to be cut, a cutting means for cutting the semiconductor wafer held on the chucking means, a first moving...
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6428389 |
Polishing apparatus
A polishing wheel is pushed up and down in the Z-axis direction owing to a wafer surface shape. And the polishing amount depends on the height of protrusions on a wafer surface. Where a spindle is...
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6416383 |
Device for dressing a grindstone to polish the running surface structure of a ski
The description deals with a facility for dressing of a grindstone ( 1 ) for grinding of a running surface structure of a ski, which facility consists of a rotating drive ( 7 ) for the grindstone (...
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6234871 |
Method and apparatus for removing a thin coating from a fabric
An apparatus for removing a thin film of material from a portion (23) of a sheet of fabric (22) and its method of operation, includes a grinder wheel (19) spaced from a nip roller (29) which is...
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6196896 |
Chemical mechanical polisher
A chemical mechanical polisher includes a substrate carrier and support system which employs at least one motor to drive the substrate carrier through polishing motions. An additional driver for...
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6113474 |
Constant force truing and dressing apparatus and method
Both an apparatus and method for truing and dressing a grinding wheel with a constant tangentially dressing force is provided. The apparatus includes a rotatable diamond dressing roll, an...
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5951377 |
Microfinishing machine
A sizing and finishing machine includes a mechanism for rotating an associated workpiece and a first microfinishing belt for selectively contacting the associated workpiece. The belt has a maximum...
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5928061 |
Wheel-head feed mechanism and grinder using the same
A wheel-head feed mechanism for a grinder comprising a base and a wheel head which is guided by a linear guide section provided on the base and rotatably supports a grinding wheel via a wheel...
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5791971 |
Glass cutting machine with linear motor
A table for cutting, grinding or otherwise machining a frangible workpiece includes a conveyor for receiving, supporting and selectively moving the workpiece on the table and a carriage mounted for...
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5785578 |
Equipment for the grinding of material samples
Equipment for the grinding of material samples includes a console and a frame structure. A turntable is mounted on the console and frame structure, with the turntable having a material sample...
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5749769 |
Lapping process using micro-advancement for optimizing flatness of a magnetic head air bearing surface
A lapping method and device for lapping magnetic heads to provide an air bearing surface with improved surface quality including increased smoothness, reduced rolloff, and reduced recession. The...
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5746644 |
Centerless grinder assembly and method of operating the same
A centerless grinder assembly for machining elongate workpieces and method of operating same are disclosed. The centerless grinder comprises a work wheel for removing stock from an associated...
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5722876 |
Electric motor driven type on-line roll grinder, its control method and grinding method
An electric drive motor with a small size and large rotary torque is used as a driving device for a grinding wheel of a grinding device. The motor such as an AC servo motor is encased in a casing...
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5718617 |
Grinding force measurement system for computer controlled grinding operations
The present invention relates to a system for measuring a grinding force between a workpiece and a grinding wheel during the operation of a computer controlled grinding machine. A force transducer...
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5713784 |
Apparatus for grinding edges of a glass sheet
This invention provides a clean and inexpensive apparatus and method of rapidly grinding an edge of a sheet of glass. The method involves: locating a sheet of glass on a support surface, lifting a...
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5672093 |
Specimen load control mechanism for automatic polishing apparatus
An improved mechanism for applying a controlled load to a specimen being polishing in an automatic polishing machine including a tension spring for exerting a downward load which is transmitted to...
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5664985 |
Method and apparatus for texturizing disks
A method and apparatus is disclosed for texturizing magnetic storage disks. The disk texturizing apparatus utilizes a combination of servomotors for rotating the disk and oscillating the disk...
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5630748 |
Machining method and apparatus
The apparatus, especially a grinding machine, comprises a frame (14) on which two working planes (A, B) are used, at least two oscillating elements (11, 12) disposed on one of the planes and each...
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5618222 |
Method and a machine for working a blade sector
A blade sector has a plurality of blades and a circular body connecting the ends of the blades defining its own axis and is finished by the working of a lateral surface of the circular body itself;...
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5601473 |
Skate sharpening apparatus and method
An apparatus and method for sharpening skate blades operate by measuring the length of a skate blade, determining a predetermined profile corresponding to a desired radius of curvature for the...
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5558559 |
Polishing system for opposite edge faces of plated steel strip
This invention completely removes a plating layer on the edge faces of a plated steel strip. A polishing system 100 for opposite edge faces of a plated steel strip S wherein a plating layer on...
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5499942 |
Hydrostatic nut and lead screw assembly, and method of forming said nut
A method of forming a hydrostatic nut that cooperates with a lead screw for translating a wheel head, or carriage, on a grinding machine, such as a cam grinder. A lead screw, which is externally...
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5480343 |
Method of sharpening profile-sharpened cutting blades
A method of sharpening cutting blades of the type made from bar stock type material, the method comprising producing relief surfaces on the cutting profile surface. The method comprises forming...
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5472367 |
Machine tool apparatus and linear motion track therefor
A machine tool apparatus, and a linear motion track therefore, are disclosed where the linear motion track is comprised of a tube having a circular cross-section with at least two bearings...
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5447463 |
Apparatus for microfinishing
The invention relates to an apparatus for fine-working or microfinishing of workpiece surfaces, particularly rotationally-symmetrically moved workpieces with oscillating or rotating tools such as...
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5445554 |
Method for chamfering notch of wafer and apparatus therefor
A notch of a wafer is chamfered by a method which is characterized by disposing a rotary disklike grindstone and a wafer to be ground with the disklike grindstone in such a manner that the surfaces...
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5367866 |
Crankpin grinder
A crankshaft is rotated about its central longitudinal axis and abrasive belts are moved along paths substantially perpendicular to the crankshaft such that the abrasive surfaces of the belts grind...
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5319885 |
Machine for multistep finishing of circular saw blades
The machine comprises a retainer member (28) for a saw blade (10) to be plugged on as well as two machining stations located diametrically opposite each other with respect to the retainer member...
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5245793 |
Method and apparatus for fine working or microfinishing
The invention relates to a method and an apparatus for fine-working or microfinishing of workpiece surfaces, particularly rotationally-symmetrically moved workpieces (38) with oscillating or...
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5210980 |
Diamond grinding machine for threading and forming hard materials such as ceramics, carbide and glass objects
A versatile thread grinding machine includes a grinding wheel with concentric thread forms thereon, rotatable about a first axis, and a work spindle which is rotatable about a second axis. Both the...
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5185965 |
Method and apparatus for grinding notches of semiconductor wafer
A method of grinding the notch of a thin workpiece, for example, a semiconductor wafer in the circumferential direction and the thickness direction by arranging a rotating disk-form grinding wheel...
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5179806 |
Method and apparatus for buffing a tire sidewall
An apparatus is provided for removing material from the sidewall of a tire. The apparatus may be used for removing the thin layer of black rubber that normally covers the white letters or white...
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5144772 |
Method and apparatus for angularly indexing a crankshaft
An indexing mechanism in a machine tool for selectively positioning plural pin portions of a crankshaft at the machining position aligned with the work spindle, wherein a indexing member engaging...
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5113621 |
Accuset micrometer lathe
An apparatus is described that converts a manual adjustment procedure of a lathe on an existing pulp-grinding machine into an automated electronic procedure. The pre-existing lathe has a sharpening...
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5099820 |
Abrasion-type splitting unit
Abrasion-type splitting unit for splitting an ingot composed of hard material into a plurality of wafers. The unit includes two identical, horizontal and parallel wire guide cylinders arranged...
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5035087 |
Surface grinding machine
A surface grinding machine comprises a wheel head vertically movably supported; a cup-shaped diamond wheel supported by a rotatable wheel shaft at one end of the wheel head and having an abrasive...
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5025593 |
Slicing machine and control method thereof
A slicing machine of this invention includes a blade having a cutting edge for slicing a silicon ingot, a tension disk for rotatably supporting the blade, a drive motor for rotating the blade, a...
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5003728 |
Machine for abrasive treatment
The machine for abrasive treatment comprises an abrasive tool (1) and a device for establishing the holding-down force within the machining zone, said device having a housing (3) provided with...
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4989376 |
Control mechanism for advancing parts of a machine tool
An electronic encoder is driven by the cross shaft in the grinder that moves the grinder. The encoder includes a rotary disc constantly driven by the cross shaft, forwardly and rearwardly....
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