| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Roll-forming die for helical gear | JP18857795 | 1995-06-30 | JPH0847739A | 1996-02-20 | CHIYAARUZU TEII DAGOSUTEINO |
| PURPOSE: To prevent formation of a seam on the tip face of tooth by progressively decreasing a pressure angle of the start part of die from the first tooth and making the pressure angle of the final tooth the same as the pressure angle of the desired formed tooth. CONSTITUTION: The first tooth of the start part of die 64 has a tooth flank whose pressure angle is substantially larger than the desired final pressure angle of the tooth formed in a blank. Continuing teeth 67, 68, 69 and 70 of the die which succeeds to the first tooth 66 progressively and gradually decrease in the pressure angle of each tooth until the tooth 71, at which the pressure angle becomes substantially the same as the desired final pressure angle. Thereby, the material of the blank rod is moved outwardly in the radial direction along both teeth flanks of the die teeth equally with each other and, at the same time, is moved equally with the center between each tooth of the die, too. Thus, any large hollow is not formed on the tip face of the tooth 74, 75 and any seam is not formed on the tip of the tooth flank of the formed tooth. | ||||||
| 42 | Manufacture of chain wheel | JP9808881 | 1981-06-23 | JPS58342A | 1983-01-05 | SUGINO YASUSHI |
| PURPOSE:To manufacture a lightweight chain wheel has a thickness of standard size only at the outer circumferential part where saw teeth are provided, by working the outer circumferential part into the saw teeth after pressing narrow parts of the outer circumference part and wheel end surface of a thin-plate wheel made of a malleable metal in a center and an axial-core direction for swaging. CONSTITUTION:While the outer circumferential surface of a thin-plate wheel 1 having a 1 or 2mm. thickness after punching is pressed in a center direction by a swaging roll 3 which is a pressing means, the end surface of the wheel 1 from the outer circumferential edge to a small-diameter part is clamped in an axial- core direction by clamping rollers 4 and 4. Thus, the swaging is performed so that only the outer circumferential part of the wheel 1 has a 2 or 2.8mm. thickness. At the outer circumferential part of the swaged wheel 1, saw teeth 9 are formed by punching by a conventional method to complete the titled chain wheel 10. | ||||||
| 43 | JPS4837353A - | JP9132672 | 1972-09-13 | JPS4837353A | 1973-06-01 | |
| 44 | METHOD FOR PRODUCING A RING WITH A TOOTHING | US15742998 | 2016-07-05 | US20180214930A1 | 2018-08-02 | Uwe MASCHELSKI; Jan Golz |
| A method for producing a ring with a toothing may involve (a) ring rolling a pre-ring to form a ring blank, (b) introducing a pre-toothing into the ring blank to form a pre-toothed ring, wherein the pre-toothing has teeth with a first tooth height, (c) heating, quenching, and tempering the pre-toothed ring to form a heat-treated pre-toothed ring, and (d) finish-toothing the heat-treated pre-toothed ring to form a ring with a toothing. The toothing may have teeth with a second tooth height that is greater than the first tooth height. Further, the introducing of the pre-toothing or the finish-toothing of the heat-treated pre-toothed ring may be performed by way of a metal machining process. | ||||||
| 45 | Face spline molding device, face spline molding method, outer joint member, and constant velocity universal joint | US14124838 | 2012-05-23 | US09630237B2 | 2017-04-25 | Takahiro Kimura; Hiroshi Matsunaga |
| An outer joint member for a constant velocity universal joint is formed by a face spline forming apparatus and a face spline forming method. The face spline forming apparatus includes a punch member having a tooth portion for forming a face spline, a pedestal having an end-surface receiving surface for receiving an opening end surface of a cup section, and a shaft member having an inner-surface receiving surface for receiving a bottom-wall inner surface of the cup section. The opening end surface and the bottom-wall inner surface are brought into a simultaneous pressure receiving state. In this state, the punch member performs a rocking motion to form the face spline in a bottom-wall back surface due to plastic deformation caused by the tooth portion of the punch member. | ||||||
| 46 | FACE SPLINE MOLDING DEVICE, FACE SPLINE MOLDING METHOD, OUTER JOINT MEMBER, AND CONSTANT VELOCITY UNIVERSAL JOINT | US14124838 | 2012-05-23 | US20140100044A1 | 2014-04-10 | Takahiro Kimura; Hiroshi Matsunaga |
| An outer joint member for a constant velocity universal joint is formed by a face spline forming apparatus and a face spline forming method. The face spline forming apparatus includes a punch member having a tooth portion for forming a face spline, a pedestal having an end-surface receiving surface for receiving an opening end surface of a cup section, and a shaft member having an inner-surface receiving surface for receiving a bottom-wall inner surface of the cup section. The opening end surface and the bottom-wall inner surface are brought into a simultaneous pressure receiving state. In this state, the punch member performs a rocking motion to form the face spline in a bottom-wall back surface due to plastic deformation caused by the tooth portion of the punch member. | ||||||
| 47 | System for manufacturing linear gear and the method thereof | US12302310 | 2007-06-07 | US08166787B2 | 2012-05-01 | Hee-won Jung; Young-June Park; Gil-Yong Yeom; Dong-Sam Kim; Jung-Su Lee |
| The present invention relates to a system for and a method of manufacturing a linear gear (rack gear), in which a forming roll and a guide roll are used to form gear teeth in a sequential manner so as not to require a high load, thereby enabling to easily manufacture the rack gear. A system for manufacturing a rack gear according to the invention includes a forming roll having a convexo-concave portion formed on a part of the surface contacting with a linear bar, a guide roll adapted to roll while facing the forming roll, and at least one support member for supporting the linear bar so as to allow the linear bar to linearly move. A method of manufacturing a rack gear according to the invention includes a first step of passing a linear bar through between a pair of rollers provided in front of a forming roll and a guide roll, a second step of charging the linear bar into a charging hole between the forming roll and the guide roll, a third step of rolling the forming roll and the guide roll to partly form teeth on the outer circumferential surface of the linear bar, and a fourth step of rolling the forming roll and the guide roll forward or backward to discharge the linear bar. | ||||||
| 48 | Cold forming tool, machine and method | US10485251 | 2002-08-07 | US07040131B2 | 2006-05-09 | Philippe Monot |
| Cold forming tool including at least one penetration zone having teeth and a calibration zone having teeth. The teeth having a tooth height that increases substantially from the at least one penetration zone to the calibration zone. A distance between an outer surface and a forming reference axis decreasing from the at least one penetration zone to the calibration zone. A rate of increase in the tooth height between the at least one penetration zone and the calibration zone being greater than a rate of decrease in the distance between the outer surface and the forming reference axis between the at least one penetration zone and the calibration zone. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way. | ||||||
| 49 | Process for fabrication of rack shaft and fabrication machine therefor | US028047 | 1998-02-23 | US6000267A | 1999-12-14 | Tadashi Yagi |
| A steel pipe having a circular sectional form is retained by a retainer. A rotatable first roller is pressed against an intermediate portion of the steel pipe. In this state, a pusher causes the steel pipe to move axially of the steel pipe. This causes the steel pipe to be plastically deformed while maintaining the first roller in rolling contact with the steel pipe whereby a flat portion is formed at the intermediate portion of the steel pipe. Subsequently, a second roller for forming rack teeth which is formed with teeth at its outer periphery is pressed against the flat portion of the steel pipe while the steel pipe is relatively moved in the axial direction thereof. This causes the flat portion of the steel pipe to be plastically deformed for formation of rack teeth at the flat portion. | ||||||
| 50 | Method and apparatus for the manufacture of a workpiece having a rotation-symmetrically hardened surface area | US992792 | 1997-12-18 | US5972418A | 1999-10-26 | Karl-Heinz Koestermeier |
| In a method and an apparatus for the manufacture of a workpiece with a rotation-symmetrically hardened surface area, the workpiece surface area to be hardened is initially applied with a carrier film of pulverized alloying elements. A roll is radially infed to the carrier film, accompanied by the rotation of the workpiece. Under the influence of heat, the pulverized alloying elements of the carrier film are rolled into the surface area of the workpiece so that the alloying elements are intercalated into the workpiece surface and increase its hardness. For performing this method, the workpiece is clamped on a spindle driven in a rotary manner. A receiving hopper and an application device are radially spaced from the spindle and are interconnected by a supply device. | ||||||
| 51 | Method of manufacturing a rack | US560445 | 1995-11-17 | US5628222A | 1997-05-13 | Tsutomu Yasuda; Jun Minamoto |
| A method of forming a hollow pipe-like rack material with rack teeth by causing mutual movement of the rack material and a forming roll is disclosed. A core bar is inserted inside the pipe-like material where the sectional profile of the core bar has a material support surface that is spaced apart from rack teeth formation portion of the rack material; the material support surface being raised. | ||||||
| 52 | Process for the production of a toothed rack via cold forming, the rack produced thereby, and an apparatus for practicing the process | US183873 | 1994-01-21 | US5546781A | 1996-08-20 | Hans Krapfenbauer |
| Process for the production of a toothed rack via cold forming, the rack produced thereby, and an apparatus for practicing the process. The cold formed rack workpiece shows multiple traces of cold forming in the toothing direction. During the production process, the workpiece, in the apparatus, is moved transversely to the axis of the rolling head, relative to the rotatably driven rolling head. Rolls, having forming ribs, are rotatably journalled within the rolling head, along at least one helical line, with the rolls rotating with the rolling head in a planetary manner. Thereby, each roll performs, in quick sequence, single rolling steps that overlap each other in the feed direction of the apparatus slide. Therein, the tooth space form-type forming ring ribs engage the workpiece. During the cold forming step of the workpiece, working material is displaced by the forming ring ribs from the bottom land area of the toothings to the top land area of the toothings, during which the top land area of the toothing can also be form rolled. An apparatus for carrying out the method includes a holding device for retaining the workpiece and a driven rolling head, rotatable about its own axis, together with feeding means and a stroke adjustor. Several rollers, each having at least one tooth spaced type forming ring rib, are journalled in the rolling head in a planetary manner. | ||||||
| 53 | Roll-forming die for helical gears | US271067 | 1994-07-05 | US5515708A | 1996-05-14 | Charles T. D'Agostino |
| Four different designs for the teeth of a rolling die are disclosed. A pair of the disclosed dies is used to form helical teeth in a cylindrical rod workpiece. All four of the disclosed die tooth embodiments are variations of a common design feature: Namely, at least one segment of the tooth profile for the first tooth of the start portion of the die is formed with a pressure angle substantially larger than the pressure angle of the final basic profile geometry desired for the teeth, and then the profiles of the successive die teeth for the start portion are formed so that the pressure angle of each successive die tooth progressively and gradually decreases in magnitude from the pressure angle of the first tooth until the pressure angle of the final die tooth of the start section is substantially the same as the pressure angle of the desired workpiece teeth. | ||||||
| 54 | Method of making rotary die racks | US56161 | 1979-07-10 | US4282782A | 1981-08-11 | Harald N. Jungesjo |
| A method and apparatus for making rotary die racks having an elongated shape including a partially circular forming face of less than 180.degree. and a flat mounting surface that faces in the opposite direction as the forming face. Cast metal blanks of the die racks are secured to a rotatable spindle in a side-by-side relationship to turn the forming faces. Forming projections, i.e. teeth that extend parallel to the axis of the forming face, are then cut in the turned face. Heat treating of the die racks is then performed before mounting thereof on a fixture to perform a finish grinding of the teeth. The spindle preferably includes a spindle member and a central shaft on which the spindle member is mounted for rotation. The fixture includes a pair of spaced end plates and a bed that extends between the end plates and has a stop and an adjustable positioner for clamping the die racks. | ||||||
| 55 | Apparatus for rolling and forming articles | US3685331D | 1969-12-31 | US3685331A | 1972-08-22 | MARCOVITCH JACOB |
| This invention relates to apparatus for rolling forming articles by rolling them into recesses in die means. The articles are rolled by forming rollers arranged in C shape and with a cylindrical rotatable member within the C and having die recesses formed therein into which recesses the material of the articles are rolled.
|
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| 56 | Apparatus for rolling and forming articles | US3608138D | 1969-12-22 | US3608138A | 1971-09-28 | MARCOVITCH JACOB |
| AN EXTRUDER FOR CONTINUOUSLY EXTRUDING ARTICLES IS PROVIDED. THE EXTRUDER HAS A BODY WITH A NOZZLE, AN OPEN END AND CONDUITS JOINING THE OPEN END AND THE NOZZLE. THE MATERIAL TO BE EXTRUDED IS CONTAINED WITHIN THE EXTRUDER BODY. A NUMBER OF ROLLERS ARE RECEIVED IN THE OPEN
END OF THE EXTRUDER BODY AND ROLL ON THE SURFACE OF THE MATERIAL. BACKING MEANS ARE ALSO PROVIDED AGAINST WHICH THE ROLLERS ROLL. |
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| 57 | Rack gear formation | US3550418D | 1969-06-10 | US3550418A | 1970-12-29 | MCLEOD CANNELL J |
| 58 | Lifting jack supporting bars | US3124013D | US3124013A | 1964-03-10 | ||
| 59 | Island | US616649D | US616649A | 1898-12-27 | ||
| 60 | Face spline forming device, face spline forming method, outer joint member, and constant velocity universal joint | JP2011135425 | 2011-06-17 | JP2013000781A | 2013-01-07 | KIMURA TAKAHIRO; MATSUNAGA KOJI |
| PROBLEM TO BE SOLVED: To provide a face spline forming device and a face spline forming method with which deformation of the inner diameter of a cup part can be suppressed, and a face spline can be stably formed.SOLUTION: The face spline forming device includes: a cradle 53 having a punch member 50 with a tooth part 62 for forming the face spline 28 and an end face receiving face 52 for receiving the opening end face 51 of a cup part 7; and a shaft member 57 having an inner face receiving face 56 for receiving the bottom wall inner face 55 of the cup part 7. The open end face 51 and the bottom wall inner side 52 are in a simultaneously pressure-receiving state. In this state, the punch member rocking motion is performed to form the face spline 28 on a bottom wall back surface 26a by plastic deformation by the tooth part 62 of the punch member 50. | ||||||
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