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WO/1999/011413A1 |
A method of bringing a gear member and a pinion member into mesh with one another without causing damage to either or both members. Each of the members of the gear pair has an axis of rotation and a plurality of teeth with respective top...
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WO/1999/006180A1 |
A method of treating a cutting edge of a tool to reduce deterioration of the cutting edge during a subsequent machining operation. A brush having a plurality of bristles is rotated about an axis of rotation and positioned relative to the...
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WO/1998/056530A1 |
The invention relates to a honing or precision tool having a honing or precision ring (1) with abrasive particles and a working ring section (2) that is profiled like a toothed wheel. Furthermore, for particularly advantageous use, the i...
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WO/1998/045077A2 |
In order to manufacture parts with an outer profile, a workpiece (32) is pressed by a pressure piece (24) through a ring-shaped cutting tool (34). The cutting tool (34) has a plurality of disks with inner cutting edges (62) for removing ...
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WO/1998/033624A1 |
A honing tool for machining workpieces, specially metal workpieces, by cutting, e.g. grinding, polishing, or honing, comprising at least one stock-removing tool portion with one or more cutting surfaces, wherein at least said cutting sur...
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WO/1998/031495A1 |
The invention relates to a machine tool for chamfering the faces of teeth (3) of toothed wheels (1) or the like, comprising two rotationally driven fly cutters (4, 5), which simultaneously process one of the two top surfaces on different...
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WO/1998/008646A1 |
A method for forming a toothed wheel which comprises the steps of providing a circular sheet metal blank of uniform thickness, cold forming an outer peripheral portion thereof into a thickened rim of uniform generally rectangular cross-s...
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WO/1998/005461A1 |
The invention relates to a machine tool for the processing of rotating tools by means of a rotary driven tool (13), impact hammers in particular, operating in synchronization with a work piece (4), for the placing of an indentation, wher...
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WO/1998/005460A1 |
The invention concerns a machine tool for the bevelling of a gear, in which two topfaces are simultaneously milled, with a rotationally driven workpiece carrier and two rotationally driven mounting spindles (13) which can be placed on th...
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WO/1998/002268A1 |
A precision grinding appartus includes a grinding worm (54) for precision grinding a case-hardened face gear (112). A shaper (18) is first placed in contact with a face gear (112), to thereby shape a surface of the face gear (112) into a...
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WO/1997/049523A1 |
A method of monitoring the condition of a tool (1) in a machining operation for producing a plurality of toothed workpieces. The process comprises measuring the temperature of at least a portion of the plurality of workpieces each at ess...
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WO/1997/049596A1 |
The present invention is a one piece sleeve for a rotary valve, the sleeve comprising an array of communication slots formed in the bore of the sleeve, characterised in that at least a portion of the floor of one of said slots is convex....
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WO/1997/039851A2 |
A cutter head (2) including a cutter body portion (6) having a first outer surface (13) and a second outer surface (14) located inward of the first outer surface. Both first and second outer surfaces are interrupted by a plurality of bla...
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WO/1997/039856A1 |
A precision grinding apparatus includes a grinding worm (54) for precision grinding a case-hardened face gear (112). A shaper (18) is first placed into contact with a face gear (112), to thereby shape a surface of the face gear (112) int...
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WO1997037290A1 |
A method of evaluating a toothed workpiece (20) for machining according to a predetermined machining process comprising mounting the workpiece (20) to a rotatable spindle (22) on a machine tool (10) and providing a probe means (24) posit...
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WO/1997/034737A1 |
A mixture of water (16) and glass beads (20) is jetted with directivity against a root (24) of a gear (24) produced by gear cutting. Therefore, a comparative stress is applied to the surface of the root (30) through the glass beads (20) ...
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WO/1997/031746A1 |
A method of machining one or more tooth slots in a bevel gear-shaped workpiece (36) with a cup-shaped tool (24) having one or more stock removing surfaces. The method comprises indexing the workpiece (36) by rotation about a workpiece ax...
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WO/1997/010068A1 |
A method of feeding a tool (2) to a predetermined depth in a workpiece (14) in a machining process for producing at least one tooth surface on the workpiece. The workpiece (14) being rotatable about a work axis (W) and the tool (2) being...
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WO/1996/035541A2 |
Disclosed is a method of grinding bevel gear teeth in a single-indexing process using a single grinding wheel provided with different bevel angles ('alpha') to produce the desired grinding wheel radii (R): one flank is machined during gr...
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WO/1996/035543A1 |
In a process for finishing the hardened teeth of a bevel gear wheel by grinding after hardening, the ground teeth are fine-honed, this procedure being carried out in the same chucking unit as used for the preceding grinding. A machine es...
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WO/1996/035542A1 |
Disclosed is a bevel gear pair comprising a first bevel gear wheel (12) and a second bevel gear wheel (10), at least one of which is provided with teeth finished by grinding. The teeth of the first bevel gear wheel (12) are finished by h...
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WO/1996/034720A1 |
Apparatus capable of performing wet and dry machining processes such as a hobbing machine for producing spur and helical gears, shafts, splines, and the like, by wet and dry hobbing methods. The apparatus comprises means to remove metal ...
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WO/1996/026803A1 |
Rotary cutting blades (20) for cutting and forming rack teeth (2) in a rack forming surface (16) of a tubular body (11) are disposed in parallel with each other along a longitudinal direction of the tubular body (11). A direction paralle...
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WO/1996/026804A1 |
A gear finishing device with a helical correction wherein a helical gear is supported for rotation on a table by a gear holding device and a tailstock, wherein a finishing grindstone is supported for rotation on a sliding device movable ...
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WO/1996/024456A1 |
A compact machine centre for multifunction positions the required tools or work devices, subsequently, which are arranged in a tool magazine of various models taking the basic form of a frame; said frame can be moved in a plane perpendic...
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WO/1996/019310A2 |
A front-loading rotary ring cutter for face milling or face hobbing processes wherein the cutter ring (40) is secured to the cutter head (2) by means which eliminate the need to remove the entire cutter assembly from the spindle of a mac...
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WO/1996/017708A1 |
A hob cutter (4) for machining face or crown gears comprises a disc-like cutter body having an axis of rotation (6) and a number of hob teeth groups (1, 2, 3, ...) which are uniformly distributed over the circumference and which are each...
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WO/1996/016315A1 |
A master gear (100) for measuring, in a parallel axis gear measuring apparatus (10), tooth profile, tooth pitch and tooth thickness of a work gear (200). The master gear (100) has a plurality of adjacent teeth separated by a tooth spacin...
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WO/1996/012585A1 |
In a face gear transmission with a cylindrical pinion and a face gear meshing therewith the toothing of the face gear is derived from a theoretical profile (22) of a pinion with an infinitely small thickness by moving the centre of this ...
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WO/1996/009910A1 |
A method of producing flank surface modifications in gear teeth by controlled removal of stock material from a work gear with a tool. The method comprises providing a gear producing machine with the tool (42) and work gear (50) being mov...
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WO/1996/006709A1 |
The invention relates to a tool holder on a machine tool for machining workpieces with high precision and great flexibility, especially a grinding wheel holder on a profile grinding machine. It is the aim of the invention to provide a to...
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WO/1996/000635A1 |
For producing a hob for machining a face gear, said hob being regrindable through grinding of the cutting faces (3), and comprising a number of cutter tooth rows (8) which are evenly distributed over the periphery and which are each boun...
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WO/1995/033192A1 |
A method of determining backlash wherein one member of a gearset is rotated in a first direction and rotary positions are recorded at predetermined increments. The rotary positions of the other member of the gearset are recorded simultan...
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WO/1995/030507A1 |
The invention pertains to a device for manufacturing profiled workpieces, in particular gearwheels and spline shafts, from unprofiled workpiece blanks. The device consists of a cutting tool (2) with a number of cutting elements in the fo...
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WO/1995/026249A1 |
The invention concerns the production of backings on the teeth of internally geared workpieces by means of a rotationally driven tool (1) with cutting edges designed for insertion into the toothing of a workpiece (2) held in a chuck (10,...
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WO/1995/024989A1 |
A method of dressing a threaded grinding wheel comprising rotating the grinding wheel and dressing tool about their respective axes and bringing the tool into contact with a point on a flank of the grinding thread. The dressing tool is t...
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WO/1995/024990A1 |
A lapping compound mixing and supply system wherein lapping compound is recirculated to the mixing vessel when not supplied to the lapping chamber of a machine tool such as a gear lapping machine. Lapping compound is pumped at about a fi...
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WO/1995/019239A1 |
A miller is disclosed for machining front face crests of the teeth of a toothed wheel, in particular between the tooth flanks (4) and face bevels (3). The miller has a rotary driven workpiece carrier for the toothed wheel (1) and a rotar...
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WO/1995/014547A1 |
The proposed method of machining cylindrical toothed wheels involves the dimensional adjustment and active control of the adjustable technical system of a gear-machining lathe which uses the method of hobbing accompanied by the co-ordina...
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WO/1995/007163A1 |
The invention pertains to a process for positioning two active surfaces of a grinding wheel relative to the flank surfaces of a rotationally symmetrical workpiece. The object of the invention is to position automatically the active surfa...
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WO/1995/003149A1 |
It is an object of this invention to improve the correction working precision such as for crowning in forming and grinding a helical gear by use of a grinding wheel. When an angle of torsion of a helical gear to be ground is set at beta ...
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WO/1995/002212A2 |
Disclosed is a process for controlling the drive for moving a workpiece (42) along a defined local coordinate ('phi') in a machine tool, wherein the movement can be modified according to a periodic command variable or wherein a periodic ...
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WO/1995/001849A1 |
A gear finishing apparatus constructed so that a grind-stone rotating gear held by a grinding stone retainer can support on the inner side thereof a plurality of finishing grinding stones fixedly in a parallel-arranged state, a grinding ...
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WO/1995/000276A1 |
A method of dressing a threaded grinding wheel (20) for grinding crown gears. The method comprises providing a dressing tool (30) in the form of a pinion member (14) with the dressing tool (30) having the same pitch as a mating pinion me...
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WO/1994/029058A1 |
A process and device are disclosed for cutting and chamfering frontal teeth flanks (18, 19) in substantially rotationally symmetrical workpieces (8). A continuously rotated workpiece (8) is advanced against two synchronically driven face...
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WO/1994/026452A1 |
In the production of a crown wheel which can mesh with a cylindrical pinion if the axes of rotation of the crown wheel and the pinion are not parallel, the workpiece from which the crown wheel is produced and a generating tool rotate at ...
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WO/1994/023880A1 |
Method of producing a conical or cup-shaped crown wheel which can mesh with a cylindrical pinion with the inclusion of an angle alpha. The crown wheel is produced by means of a generating process. The tool (1, 43) consists of a disc (3) ...
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WO/1994/023207A1 |
A hydraulic machine (1) is disclosed, with an annular gear (3) with internal teeth (6, 7) and, eccentrically mounted in the annular gear, a gearwheel (2) with external teeth (4, 5) which engage with the internal teeth, the external teeth...
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WO/1994/021414A1 |
An universal cutting blade blank (40) and cutting blade formed therefrom is formed from a length of bar stock material and has a uniform cross section along the length. The front face of the blank and blade comprises a pair of mounting s...
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WO/1994/021413A1 |
Disclosed herein is a process for feeding a tool (2) relative to a workpiece (12) in a machining process such as a process for forming bevel and hypoid gears. The method comprises feeding the tool (2) from an initial contact position (12...
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