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1. 发明授权

US06779270B2 Full form roll finishing technique 失效
标题翻译：全辊成型技术
公开(公告)号：US06779270B2
公开(公告)日：2004-08-24
申请号：US10056928
申请日：2002-01-24
申请人： Nagesh Sonti , Suren B. Rao , James V. Caldwell
发明人： Nagesh Sonti , Suren B. Rao , James V. Caldwell
IPC分类号： B21D5328
CPC分类号： B21H5/022 , Y10T29/49467 , Y10T29/49471 , Y10T29/49474
摘要： A full form net shape roll finished contacting machine element such as a gear or sprocket is produced from a near net shape workpiece of wrought or forged steel including teeth with an initial outer peripheral contoured surface, each having a tooth flank with a nominally involute surface and a root/fillet region with a trochoidal surface. A rolling die is rotatably supported on a first axis. With the workpiece rotatably supported on a parallel distant second axis, the rolling die is advanced in an in-feed direction to meshingly engage with the workpiece. The involute surface of each tooth of the rolling die engages the involute surface of a mating tooth of the workpiece and the tooth tip of the rolling die engaging the trochoidal root/fillet surface between adjacent mating teeth of the workpiece to effect material flow along the outer peripheral contoured surface. This process continues for all of the teeth of the workpiece.
摘要翻译：由锻造或锻造钢的近净形状工件制造出完整形状的网状轧辊成品接触机构元件，例如齿轮或链轮，其包括具有初始外周轮廓表面的齿，每个具有标称渐开线表面的齿面，具有摆线表面的根/圆角区域。滚动模具可旋转地支撑在第一轴线上。随着工件可旋转地支撑在平行的远离的第二轴线上，轧制模具在进给方向上前进以与工件啮合地接合。轧制模具的每个齿的渐开线表面与工件的配合齿的渐开线表面接合，并且轧制模具的齿顶接合工件的相邻配合齿之间的摆线根/圆角表面，以沿着外部的材料流动周边轮廓表面。对于工件的所有齿，该过程继续。

2. 发明授权

US06264768B1 Method for strengthening of rolling element bearings by thermal-mechanical net shape finish forming technique 失效
标题翻译：通过热机械网形成型技术加固滚动体轴承的方法
公开(公告)号：US06264768B1
公开(公告)日：2001-07-24
申请号：US09298375
申请日：1999-04-23
申请人： Nagesh Sonti , Suren B. Rao
发明人： Nagesh Sonti , Suren B. Rao
IPC分类号： C21D110
CPC分类号： C21D9/32 , C21D1/19 , C21D8/00 , C21D9/40
摘要： A method and apparatus disclosed for cost-effective net shape precision ausform finishing the engagement surfaces of ball and roller bearings, for enhancing the surface strength and durability of bearing inner and outer races. The method consists of induction heating to austenitize the contacting surface layers of rolling element bearing races, followed by martempering (or marquenching), and then net shape roll finishing of the induction heated contacting surface layers in the metastable austenitic condition to finished dimensional accuracy requirements, and finally cooling to martensite. The apparatus utilizes a fixed vertical through-feed axis for the workpiece bearing race with capability for rotation and linear up and down positioning motion, and two coordinated and controlled laterally-moving infeed axes for roll finishing tooling dies. For finishing of the outer contacting surfaces of the bearing inner races, two suitably contoured power-driven dies are arranged symmetrically on diametrically opposing sides of the workpiece. A dual but asymmetric tooling arrangement employs a suitably contoured power-driven finish tooling die is positioned for the internal roll finishing operation, while a plane cylindrically shaped idling support tooling die is located on the opposing side of the work region. The apparatus includes specialized contoured finishing tooling for bearing inner and outer race ausform finishing utilizing specially contoured cylindrical roll finishing tolling dies to facilitate infeed ausforming of bearing inner and outer races, the structure and mechanism for asymmetric mounting, powered drive and infeeding of the roll finishing die and the idling support die with respect to the bearing outer race.
摘要翻译：公开了一种用于成本有效的净形状精度的方法和装置，其完成了滚珠和滚子轴承的接合表面，用于增强轴承内外圈的表面强度和耐久性。该方法包括感应加热以对滚动元件轴承座圈的接触表面层进行奥氏体化，随后进行碾磨（或淬火），然后在亚稳态奥氏体条件下对感应加热的接触表面层进行净形状辊轧完成尺寸精度要求，最后冷却至马氏体。该设备利用固定的垂直通过进给轴线的工件轴承座圈，具有旋转和线性上下定位运动的能力，以及用于辊精加工模具的两个协调和受控的横向移动进给轴。对于轴承内圈的外接触表面的精加工，两个适当轮廓的动力驱动模具对称地布置在工件的直径相对的侧面上。双重但不对称的工具装置采用适当轮廓的动力精加工模具定位用于内辊精加工操作，而平面圆柱形空转支撑模具模具位于工作区域的相对侧上。该设备包括专门的轮廓精加工工具，用于轴承内外轮廓整理，利用特殊轮廓的圆柱滚轮精加工收费模具，以方便轴承内外圈的进给，用于不对称安装，动力驱动和进料辊整理的结构和机构模具和相对于轴承外圈的空转支撑模具。

3. 发明授权

US07641850B2 Method and apparatus for strengthening of powder metal gears by ausforming 有权
标题翻译：通过成形加强粉末金属齿轮的方法和装置
公开(公告)号：US07641850B2
公开(公告)日：2010-01-05
申请号：US10802141
申请日：2004-03-17
申请人： Nagesh Sontti , Maurice F. Amateau , Suren B. Rao
发明人： Nagesh Sontti , Maurice F. Amateau , Suren B. Rao
IPC分类号： B22F3/24
CPC分类号： B22F3/162 , B21H5/022 , B22F3/16 , B22F3/164 , B22F3/24 , B22F5/08 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C21D1/19 , C21D1/20 , C21D1/22 , C21D1/42 , C21D8/00 , C21D9/32 , Y02P10/253 , Y10T74/1987 , B22F2003/241 , B22F2003/248 , B22F3/18 , B22F3/14 , B22F2202/07
摘要： A technique for net shaping gear teeth of a high performance power transmission gear from a powder metal workpiece includes heating a powder metal workpiece in the form of a near net shaped gear blank having gear teeth surfaces above its critical temperature to obtain an austenitic structure throughout its surfaces, isothermally quenching the workpiece at a rate greater than the critical cooling rate of its surfaces to a uniform metastable austenitic temperature just above the martensitic transformation temperature, rolling the gear teeth surfaces of the workpiece to a desired outer peripheral profiled shape between opposed dies, each die having an outer peripheral profiled surface, while holding the workpiece at the uniform metastable austenitic temperature, the gear teeth surfaces undergoing densification, plastic deformation, and strengthening as a result of the rolling operation, and cooling the workpiece through the martensitic range to thereby harden the surfaces of the gear teeth.
摘要翻译：用于从粉末金属工件净化齿轮齿的高性能动力传动齿轮的技术包括加热具有齿轮齿表面高于其临界温度的近网状齿轮坯料形式的粉末金属工件，以在其整个过程中获得奥氏体结构表面，以大于其表面的临界冷却速率的速度等温淬火到刚好高于马氏体相变温度的均匀亚稳态奥氏体温度的速度，将工件的齿轮齿表面滚动到相对的模具之间期望的外周轮廓形状，每个模具具有外周轮廓表面，同时将工件保持在均匀的亚稳态奥氏体温度，齿轮齿表面由于轧制操作而经历致密化，塑性变形和强化，并且通过马氏体范围冷却工件硬化齿轮齿轮的表面 H。

4. 发明授权

US4755950A Stock divider including a computer controlled gear locator 失效
标题翻译：股票分配器包括计算机控制的齿轮定位器
公开(公告)号：US4755950A
公开(公告)日：1988-07-05
申请号：US856485
申请日：1986-04-28
申请人： Suren B. Rao
发明人： Suren B. Rao
IPC分类号： B23F23/12 , G05B19/401 , B24B49/00
CPC分类号： G05B19/401 , B23F23/12
摘要： A grinder for form grinding gear teeth in which a work gear is positioned rotationally by a computer controlled drive. A sensitive probe in known angular relation to a grinding wheel about the axis of the gear is positioned at random in any tooth space, and senses the angular positions of the gear when the gear is driven in opposite directions into probe actuating positions of adjacent tooth surfaces. The computer then controls the gear drive to rotate it reversely by one half of such angular movement from the last position.
摘要翻译：用于研磨齿轮的研磨机，其中工作齿轮通过计算机控制的驱动旋转定位。已知的与砂轮的角度关系的敏感探头围绕齿轮的轴线定位在任何齿隙中，并且当齿轮沿相反的方向被驱动到相邻齿面的探针致动位置时，感测齿轮的角度位置。然后，计算机控制齿轮传动装置将其从最后位置反向旋转一半的角运动。

5. 发明授权

US4924842A Optimization method and apparatus for dressing a grinding wheel 失效
标题翻译：砂轮修整的优化方法和装置
公开(公告)号：US4924842A
公开(公告)日：1990-05-15
申请号：US411244
申请日：1989-09-22
申请人： Suren B. Rao , Richard W. Schwartz
发明人： Suren B. Rao , Richard W. Schwartz
IPC分类号： B24B49/16 , B24B53/06
CPC分类号： B24B53/062 , B24B49/16
摘要： An optimization method of dressing a predetermined profile on the periphery of a grinding wheel of the type used in form grinding. A dresser is guided along a path corresponding to the predetermined grinding wheel profile in successive, identical cycles of motion. The grinding wheel is fed into the path in increments between cycles. The dresser contacts the periphery of the grinding wheel during movement along its path, with the duration of contact increasing in each cycle until the predetermined profile is produced. The duration of contact during each cycle is monitored. When the difference between the duration of contact in a given cycle and the duration of contact in the previous cycle is zero or negligible, dressing is complete. Apparatus for practicing the method is also disclosed.
摘要翻译：在成型研磨中使用的砂轮周边上修整预定轮廓的优化方法。在连续相同的运动周期中，修整器沿着对应于预定砂轮轮廓的路径被引导。磨轮在循环之间以增量送入路径。修整器在沿其路径运动期间接触砂轮的周边，在每个循环中接触的持续时间增加，直到产生预定轮廓。监测每个循环期间的接触持续时间。当给定周期中的接触持续时间与前一周期中的接触持续时间之间的差值为零或可忽略时，敷料完成。还公开了用于实施该方法的装置。

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