Work Rotating Patents (Class 451/189)
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Patent number: 9873177Abstract: A machining apparatus is of an in-feed type configured to machine an outer peripheral surface of a rotating tapered roller, and includes a rotating mechanism having a lateral pair of rollers on which the tapered roller is mounted, the rotating mechanism rotating the pair of rollers, and a grinding stone that is brought into contact with the outer peripheral surface of the tapered roller mounted on the pair of rollers. Each roller of the pair of rollers is shaped like a truncated cone. Small-diameter portions of the pair of rollers come into contact with a small-diameter portion of the tapered roller. Large-diameter portions of the pair of rollers come into contact with a large-diameter portion of the tapered roller.Type: GrantFiled: February 16, 2016Date of Patent: January 23, 2018Assignee: JTEKT CORPORATIONInventors: Atsushi Kuno, Kenji Ohgaki, Fumikazu Hirakawa
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Publication number: 20150017886Abstract: The V-belt is produced with inwardly tapered sidewalls using an apparatus having at least one motorized cutting wheel having first axis of rotation and a moving anvil system with an anvil wheel having a second axis of rotation not parallel to the first axis. The anvil system is motorized and situated so the workpiece follows a U-shaped trajectory into the path of the cutting wheel. The circumferential gripping surface of the anvil wheel and circumferential cutting surface of the cutting wheel are geometrically arranged so that at the point of contact between workpiece and cutting wheel the respective surfaces define planes that intersect in an acute angle that defines the inwardly tapered sidewalls.Type: ApplicationFiled: July 15, 2013Publication date: January 15, 2015Inventor: Frank Seachrist
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Patent number: 8641478Abstract: A method of marring a fiber optic substrate by supporting a length of the substrate on a tapered surface of an elongate support and causing relative movement between at least one roller and the support lengthwise of the support with the roller pressing the substrate against the tapered surface and the roller rolling along the substrate. At least one of the roller and the support include an abrasive surface for marring the substrate during such relative movement therebetween.Type: GrantFiled: December 20, 2012Date of Patent: February 4, 2014Assignee: Lumitex, Inc.Inventors: David B. Larson, Brian M. Spahnie
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Patent number: 7744444Abstract: A centerless feed-through super-finishing device including: first and second feed-through rollers having first and second longitudinal outer surfaces; a metallic part having a generally cylindrical section, disposed between the outer surfaces, wherein a longitudinal axis of the cylindrical section is generally aligned with the outer surfaces, the cylindrical section having a metal working surface, the outer surfaces disposed in a near-parallel fashion; a rotating mechanism for rotation of the rollers along respective longitudinal axes thereof, and for effecting thereby a rotation of the cylindrical section, wherein an angle between the rollers is selected such that rotation of the rollers propels the cylindrical section between the rollers; and a lapping system including: a lapping tool having a polymeric contact surface disposed to contact the working surface, and a lapping mechanism, associated with the lapping tool, adapted to exert a load on the contact and working surfaces; and abrasive particles, freelyType: GrantFiled: March 10, 2008Date of Patent: June 29, 2010Assignee: Fricso LtdInventors: Kostia Mandel, Limor Zuri, Boris Shamshidov
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Publication number: 20090068928Abstract: A method of grinding a ferrous roll may include: rotating a grinding wheel on a machine spindle to form a rotating grinding wheel; rotating a ferrous roll to form a rotating roll surface; bringing the rotating grinding wheel into contact with the rotating roll surface; traversing the rotating grinding wheel across an axial roll length of the rotating roll surface; and grinding the roll surface while varying at least one or both of a grinding wheel rotational speed and a said mill roll rotational speed at an amplitude of +/?1 to 40% with a period of 1 to 30 seconds.Type: ApplicationFiled: September 25, 2008Publication date: March 12, 2009Applicant: DIAMOND INNOVATIONS, INC.Inventors: Kris V. Kumar, Biju Varghese
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Patent number: 7029366Abstract: For the machining of a workpiece (18) rotating about a workpiece axis, a first abrasive tool (20), which rotates about a first tool axis, and the workpiece (18) are advanced towards one another, in order to machine a first workpiece face in a first abrasive operation. Further, a second abrasive tool (54), which rotates about a second tool axis (56), is advanced towards the workpiece (18), in order to machine a second workpiece face in a second abrasive operation. The two workpiece faces are designed rotationally symmetrically with respect to the workpiece axis and are arranged adjacently to one another in such a way that a sharp, burr-free, circular transition edge is formed between them. The two abrasive operations are controlled in such a way that they are terminated at the same time.Type: GrantFiled: August 17, 2004Date of Patent: April 18, 2006Assignee: HTT Hauser Tripet Tschudin AGInventor: Jean-Claude Montandon
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Patent number: 7021990Abstract: A method and apparatus for a circular grinding of a workpiece having first and second workpiece faces which are rotationally symmetrical with respect to the workpiece axis and which form a circular transition edge between them are provided. The workpiece rotating about its axis and a grinding wheel rotating about a grinding-wheel axis are advanced towards one another. During grinding, an auxiliary abrasive tool, which rotates about an auxiliary-tool axis and has a plane abrasive surface arranged at right angles to the auxiliary-tool axis, is pressed against the workpiece in such a way that the abrasive surface is arranged in a tangential plane to the second workpiece face and touches the second workpiece face along a contact line. The plane abrasive surface projects in the direction of the contact line away from the second workpiece face beyond the transition edge.Type: GrantFiled: August 17, 2004Date of Patent: April 4, 2006Assignee: HTT Hauser Tripet Tschudin AGInventors: Jean-Claude Montandon, Herman Ingold
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Patent number: 6986702Abstract: A centerless grinding apparatus (10) includes an outer diameter surface grinding wheel (11) for grinding the outer diameter surface of a work (1) of a substantially cylindrical shape, a regulating wheel (12) for supporting the outer diameter surface of the work (1) in conjunction with the outer diameter surface grinding wheel (11) and an end surface grinding wheel (21) for grinding the end surface of the work (1). The end surface grinding wheel (21) grinds the end surface of the work (1) while the outer diameter surface grinding wheel (11) grinds the outer diameter surface of the work (1) in a state that the work (1) is disposed between the outer diameter surface grinding wheel (11) and the regulating wheel (12).Type: GrantFiled: April 3, 2003Date of Patent: January 17, 2006Assignee: NSK Ltd.Inventors: Yuko Kamamura, Hiroyuki Iwanami
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Patent number: 6572441Abstract: During a CMP operation, vibration-caused variations in the forces holding a wafer against a polishing pad, and/or relatively moving the pad and the wafer are measured and the standard deviation thereof is used to minimize or eliminate the deleterious effects of the vibrations.Type: GrantFiled: May 31, 2001Date of Patent: June 3, 2003Assignee: Momentum Technical Consulting, Inc.Inventors: Ralf Lukner, Owen Hehmeyer
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Patent number: 6030279Abstract: A toothed timing belt is produced from a belt blank utilizing an apparatus having a belt blank fixturing device for supporting the belt blank for selective indexable rotation about a first axis and a toothed grinding wheel rotatable about a second transverse axis and supported for movement across the width of the belt blank in a direction parallel to the first axis for cutting a series of circumferentially spaced transverse teeth into the belt blank. The belt blank is indexed with each pass of the grinding wheel until the entire belt has been provided with teeth. The toothed belt blank may then be severed about its periphery to provide a plurality of discrete timing belt members.Type: GrantFiled: September 22, 1995Date of Patent: February 29, 2000Inventor: Jerry Russell
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Patent number: 5549510Abstract: A grinding wheel for treating a surface of a power transmission belt/belt sleeve. The grinding wheel has a cylindrical body defining a rotational axis and having a circumferential outer surface with there being a plurality of abrading elements arranged in circumferentially spaced relationship on the outer surface of the body. Reliefs are provided between adjacent abrading elements. The invention further contemplates a method of treating a belt using the inventive grinding wheel.Type: GrantFiled: March 12, 1993Date of Patent: August 27, 1996Assignee: Mitsuboshi Belting Ltd.Inventors: Misao Fukuda, Yoshihiro Hayami, Toshihiro Ueda, Shoichi Iwaki
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Patent number: 5536197Abstract: An automatic machine for the production of rounded bevels at the corners of flat sheets, comprising a device (20) for the support and transfer of a sheet (3), hinged to fixed frame (10) of the machine and capable of rotating in relation thereto around an axial parallel to the feed direction, means (40) for stopping the feeding of such sheet, a means (30) holding sheet (3), hinged to fixed frame (10) and capable of rotating in relation thereto around an axis of rotation (32a) perpendicular to the plane of sheet (3), a work tool (50) integral with fixed frame (10) in relation to which it may be made to rotate via appropriate means (52, 52a), and means (60 ) for unloading sheet (3) on completion of the work, the axis of rotation of such means (30) for holding sheet (3) being capable of being moved in programmable settings with respect to a reference line parallel to lower edge (3a) of sheet ( 3) and the stopping surface of such means (40) for stoppage of movement being capable of being moved in programmable settType: GrantFiled: September 9, 1994Date of Patent: July 16, 1996Assignee: AISA S.p.A.Inventor: Gian P. Barozzi
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Patent number: 5486133Abstract: A toothed timing belt is produced from a belt blank utilizing an apparatus having a belt blank fixturing device for supporting the belt blank for selective indexable rotation about a first axis and a toothed grinding wheel rotatable about a second transverse axis and supported for movement across the width of the belt blank in a direction parallel to the first axis for cutting a series of circumferentially spaced transverse teeth into the belt blank. The belt blank is indexed with each pass of the grinding wheel until the entire belt has been provided with teeth. The toothed belt blank may then be severed about its periphery to provide a plurality of discrete timing belt members.Type: GrantFiled: May 31, 1994Date of Patent: January 23, 1996Inventor: Jerry Russell
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Patent number: 5402606Abstract: A dual roll grinder employs a first and second work station including a dual drive headstock disposed therebetween. A grinding assembly and the dual drive headstock translatably move along a bed to engage rolls in either of the two stations. This permits unloading and loading of a new roll in the station not currently active.Type: GrantFiled: March 4, 1994Date of Patent: April 4, 1995Assignee: Voith Sulzer Paper Technology North America, Inc.Inventor: Dale E. Helgren