| Patents for B23F 13 - Making worms by methods essentially requiring the use of machines of the gear-cutting type (223) |
|---|
| 08/06/2008 | CN101234441A Method for processing ring surface worm-gears of hard tooth-surface ring surface worm-gear involute gear pair |
| 08/06/2008 | CN100408260C Composite working machine tool and working method in composite working machine tool |
| 07/23/2008 | CN100404178C Device capable of processing arbitrary screw angle tbread or worm |
| 07/22/2008 | US7402006 Manufacturing method of gear device |
| 06/26/2008 | DE4030789B4 Verfahren und Vorrichtung zur Herstellung eines Hauptrotors Method and apparatus for producing a master rotor |
| 06/11/2008 | CN201070694Y Dual column worm milling cutter |
| 05/21/2008 | DE10113301B4 Verfahren und Vorrichtung zum Hinterschleifen der Schneidzähne von zylindrisch oder kegelig geformten Abwalzfräsern sowie Abwalzfräser Method and apparatus for relief grinding the cutting teeth of cylindrical or conically shaped Abwalzfräsern and Abwalzfräser |
| 01/02/2008 | CN200998800Y Globoid worm gear worm auxiliary hob cutter |
| 01/02/2008 | CN200998799Y Worm grinding device |
| 11/13/2007 | US7294046 Method for dressing a grinding worm |
| 10/10/2007 | CN200957472Y Apparatus for machining random spiral angle screw or worm |
| 08/08/2007 | CN101012865A Two freedom degree straight line ring surface worm transmission and method for manufacturing same |
| 06/05/2007 | US7226255 Five-simultaneously-working-axis computerized numerical controlled tooth cutting machine tool for plane enveloping toroidal worms |
| 05/30/2007 | CN1970208A Double revolution surface quadric enveloping worm gear pairs and its production method |
| 04/26/2007 | WO2007046116A1 Shaping roll for double cold working of sheet material and apparatus and process for realising said roll |
| 02/14/2007 | CN1911575A Device capable of processing arbitrary screw angle tbread or worm |
| 02/08/2007 | DE19910746B4 Vorrichtung und Verfahren zum Profilieren von Schleifschnecken Apparatus and method for profiling grinding worms |
| 02/07/2007 | CN1907615A Toroid worm numerical control machine capable of making up center distance |
| 02/01/2007 | DE102005035794A1 Vorrichtung zum Herstellen metallischer Bauteile, insbesondere von Zylinderschneckenprofilen, durch rotierende spanende und rollierende Bearbeitung von zylindrischen Rohteilen Apparatus for producing metallic components, in particular cylinder screw profiles, by rotating cutting and rolling machining cylindrical blanks |
| 01/31/2007 | EP1747841A2 Device for manufacturing metal parts, particularly cylindrical screw profiles, by rotary machining and rolling processing of cylindrical blanks |
| 01/04/2007 | WO2007000831A1 Diamond rotary dresser for gear and method for truing and dressing gear processing grinding wheel using the rotary dresser |
| 12/20/2006 | EP1732727A1 Method for cutting worm and worm gear in a worm and gear reduction unit with circulation of bearing balls and related cutting tools |
| 12/06/2006 | CN2843703Y Digital-controlled vortex-lever secondary milling machine |
| 07/05/2006 | CN1796033A Molding cutter for worm and application |
| 05/16/2006 | US7044691 Forming method for milling threads of variable tooth worms |
| 10/12/2005 | EP1584393A1 Method of dressing a substantially cylindrical grinding worm |
| 10/06/2005 | US20050221732 Method for dressing a grinding worm |
| 09/29/2005 | WO2005089996A1 Method for cutting worm and worm gear in a worm and gear reduction unit with circulation of bearing balls and related cutting tools |
| 06/02/2005 | US20050117985 Five-simultaneously-working-axis computerized numerical controlled tooth cutting machine tool for plane enveloping toroidal worms |
| 05/26/2005 | WO2004102036A3 Enveloping worm transmission and machining of enveloping worm transmission |
| 04/20/2005 | CN1197677C Technology for machining multi-thread worm with hobber |
| 03/15/2005 | US6868304 Multi-function machine tool and machining method in multi-function machine tool |
| 01/27/2005 | US20050019120 Worm gear having thread pitch and method for making same |
| 12/16/2004 | US20040254671 Multi-function machine tool and machining method in multi-function machine tool |
| 12/15/2004 | CN2663067Y Involute gear enveloping worm forming tool |
| 11/25/2004 | WO2004102036A2 Enveloping worm transmission and machining of enveloping worm transmission |
| 09/01/2004 | CN2637065Y Device for automatic grinding feed screw nut |
| 07/27/2004 | CA2189212C Fluid compression/expansion machine with fluted main rotor having ruled surface root and method of manufacture |
| 05/06/2004 | US20040086350 Five-simultaneously-working-axis computerized numerical controlled tooth cutting machine tool for plane enveloping toroidal worms |
| 05/05/2004 | CN1493427A Digital controlled five shaft linked plane intrinsic ring surface scroll tooth cutting machine tool |
| 04/28/2004 | CN1491765A Composite working machine tool and working method in composite working machine tool |
| 03/31/2004 | EP1402982A1 Multi-function machine tool and machining method in multi-function machine tool |
| 02/19/2004 | US20040033114 Forming method for milling threads of variable tooth worms |
| 02/11/2004 | CN1137795C Method for milling teeth of tooth-variable worm |
| 01/07/2004 | CN1133521C Approximate grinding method for planer enveloping worm |
| 05/07/2003 | CN2548747Y Special machine tool for machining worm |
| 02/19/2003 | CN1397397A Technology for machining multi-thread worm with hobber |
| 10/02/2002 | DE10113301A1 Process for grinding a milling cutter having a toothed profile comprises forming an edge clearance by engaging a grinding disk in the direction of the sides of the teeth |
| 06/06/2002 | US20020067966 Method of forming milled tooth of variable tooth worm |
| 05/14/2002 | US6386953 Topological profiling of grinding worms for continuous generating grinding of gear teeth |
| 05/08/2002 | CN1084449C Point-line contacted biased worm gearing and its manufacturing method |
| 01/30/2002 | CN2474255Y Processing equipment of toroid planetary worm driving stator |
| 12/26/2001 | CN2467247Y Multifunction digital control worm machine tool |
| 10/16/2001 | US6302764 Process and device for dressing high-speed grinding worms |
| 05/30/2001 | CN1296870A Method for milling teeth of tooth-variable worm |
| 05/22/2001 | US6234880 Device and method for profiling grinding worms |
| 10/25/2000 | CN1057720C Processing tech. of worm gear and abrasire wheel for working worm |
| 09/14/2000 | DE19910746A1 Method for profiling worm drives for gear cutting machines has a composite grinding wheel on a turntable to shape the entire profile |
| 08/24/2000 | DE19907363A1 Topological profiling process for continuous tooth grinding worms, involving using tool with required topology in distorted form on simple basic geometry |
| 07/19/2000 | CN1054562C Ring-surface worm shaping method |
| 03/29/2000 | CN1248504A Approximate grinding method for planer enveloping worm |
| 03/02/2000 | DE19901338C1 Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data |
| 02/10/1999 | CN1042007C Method for grinding tooth back of worm hob with secondary enveloping ring surface |
| 10/28/1998 | CN1196988A Processing tech. of worm gears and abrasive wheel for working worm |
| 07/21/1998 | US5782624 For a rotary fluid machine |
| 06/10/1998 | CN1184219A Point-line contacted biased worm gearing and its manufacture |
| 07/15/1997 | US5647703 Globoid worm gear generating method |
| 05/14/1997 | CN1034855C Machining method for arc surface worm and spherical worm gear of high precision |
| 02/04/1997 | US5598618 Mainrotor machining process and apparatus |
| 07/17/1996 | EP0627969B1 Hopping method and device by means of a milling knife |
| 05/14/1996 | US5516240 Adapted to turn workpieces |
| 03/06/1996 | EP0597917B1 Shaft with shaped endless screw |
| 11/14/1995 | US5465631 Shaft with a worm formed onto it, and milling machine for manufacturing a worm |
| 10/10/1995 | US5456558 Globoid worm gear generating method |
| 04/26/1995 | CN1101871A Method for grinding tooth back of worm hob with secondary enveloping ring surface |
| 07/05/1994 | US5325634 Hourglass worm gear |
| 03/30/1994 | CN1084440A Processing method of point-contact enveloping ring surface worm wheel pair |
| 02/22/1994 | CA1327136C Method for cutting the flanks of an infeed worm and worm milling machine |
| 02/02/1994 | EP0580801A1 Method of cutting hour glass screws |
| 01/18/1994 | US5279174 Worm speed reducer, and manufacturing method for worm and worm wheel |
| 12/01/1993 | CN1078931A Ring Surface Worm Shaping method |
| 10/13/1993 | CN2143539Y Combined system of worm envelope working machine tool |
| 09/02/1993 | WO1993016832A1 Hopping method and device by means of a milling knife |
| 08/17/1993 | US5235786 Hourglass worm gear |
| 02/23/1993 | US5188491 Method for cutting the flanks of an infeed worm and worm milling machine |
| 02/18/1993 | WO1993003297A1 Shaft with shaped endless screw and milling cutter for producing the endless screw |
| 02/11/1993 | DE4126026A1 Welle mit angeformter schnecke und fraeser zur herstellung der schnecke Shaft with molded screw and Mills for manufacturing a snail |
| 10/29/1992 | WO1992018278A1 Method of cutting hour glass screws |
| 02/04/1992 | US5084965 Process to cut hour glass screws |
| 01/22/1992 | CN2093710U Circular-arc worm and worm-wheel cutting device |
| 01/02/1992 | EP0325579B1 Worm wheel and method of hobbing same |
| 10/01/1991 | CA1289772C Worm wheel and method of hobbing same |
| 05/28/1991 | US5018403 Globoid worm gear speed reduction apparatus |
| 05/15/1991 | EP0427361A2 Hourglass worm gear |
| 04/18/1991 | WO1991004830A1 Mainrotor machining process and apparatus |
| 03/12/1991 | US4998385 Method of modified gear cutting of a globoid worm gear |
| 02/27/1991 | EP0413725A1 Process and machine for cutting flanks of one-piece endless screws |
| 05/22/1990 | US4926712 Worm wheel and method of hobbing same |
| 05/09/1990 | CN2056880U 蜗杆装置 Worm device |
| 01/30/1990 | CA1264902A1 Apparatus and method for machining an enveloping-type worm screw |