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1. 发明专利

JP2011106588A Method of manufacturing retainer, retainer, and retainer manufacturing device 有权
标题翻译：制造保持器，保持器和保持器制造装置的方法
公开(公告)号：JP2011106588A
公开(公告)日：2011-06-02
申请号：JP2009262907
申请日：2009-11-18
申请人： Ntn Corp , Ntn株式会社
发明人： NAKABASHI MASARU
IPC分类号： F16C33/46
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a retainer which can easily form pawls whose amounts of circumferential projection are equal to each other even if the circumferential lengths of pillars are different from each other.
SOLUTION: The manufacturing method is provided with a pocket formation process (S12) forming a plurality of pockets by preparing a retainer member (S11), a pillar moving restrain process (S14) which restrains the pillar composing circumferential wall surface of the pockets forming the pawl from moving in circumferential direction, a disposition process (S15) which disposes a pocket wall surface guide portion within the pockets by employing a pawl formation tool which is a tool prepared by tool preparation process (S13) and is provided with the pocket wall surface guide portion to be guided along a wall surface at circumferential both sides of the pockets and a large wide portion which is provided in a position receded from the pocket wall surface guide portion and is larger than the circumferential width of the pockets and a pawl formation process (S16) which forwardly pushes the pawl formation tool in radial direction and forms the pawl by plastically deforming a part of the circumferential wall surface of the pockets by the large wide portion.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种可以容易地形成周向突出量彼此相等的棘爪的保持器的制造方法，即使柱的周向长度彼此不同。解决方案：制造方法通过制备保持构件（S11），制造多个袋的袋形成工艺（S12），限制构成圆形壁的支柱的支柱移动抑制处理（S14）通过使用作为通过工具准备处理（S13）制备的工具的棘爪形成工具，将口袋壁表面引导部分设置在口袋内部的处理过程（S15），并且设置有：口袋壁面引导部分沿着凹穴的周向两侧的壁表面被引导，并且设置在从袋壁表面引导部分后退的位置处并且大于口袋的周向宽度的大的宽部分，以及棘爪形成过程（S16），其向前推动棘爪形成工具在径向方向上并且通过使一部分环的塑性变形而形成棘爪口袋的壁面很大，宽度很大。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2013193088A Method of manufacturing retainer, and retainer 有权
标题翻译：制造保持器和保持器的方法
公开(公告)号：JP2013193088A
公开(公告)日：2013-09-30
申请号：JP2012059988
申请日：2012-03-16
申请人： Ntn Corp , Ntn株式会社
发明人： MANO YOSHIYA , NAKABASHI MASARU , KONDO KOHEI , KAWAMURA HAJIME , KANEHARA SHINGO , YAMAMOTO YASUNORI
IPC分类号： B21K1/05 , B21D53/12 , B21J5/08 , F16C33/46
CPC分类号： F16C33/541 , B21D41/026 , B21D53/12 , F16C19/26 , F16C19/463 , F16C33/543 , F16C33/546 , F16C2220/42 , F16C2220/46 , F16C2220/84 , F16C2240/60 , Y10T29/49691
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a retainer and the retainer which suppress shear droop in a bent part as a flange part without using a divided die and bulge forming which restrain an inner side of an unprocessed material.SOLUTION: A flange part 7a is formed on an end part on one side by pressing and folding the end part on the one side of an unprocessed material 6 inward by an upper punch 33. In this press operation, a small-diameter part of the unprocessed material 6 is retrained from an inside and an outside by a lower punch 31 and a divided die part 32a. Therefore, the flange part 7a can be bend without reducing a thickness of the end part of the unprocessed material 6. In addition, in the bending operation, a peripheral surface part of a projected part 33a of the upper punch 33 receives the end part of the unprocessed material 6 and an outward pressure is imparted on the end part. Thus, a bent part is pressed to a large-diameter part retraining part of a divided dice 32, and shear droop of the bent part is prevented.
摘要翻译：要解决的问题：提供一种制造保持器和保持器的方法，该保持器和保持器抑制弯曲部分中的剪切下降作为凸缘部分而不使用分开的模具和抑制未加工材料的内侧的凸起形成。解决方案：法兰通过在未加工材料6的一侧上通过上冲头33向内压入和折叠端部而在一侧的端部上形成部分7a。在该压制操作中，未加工材料6的小直径部分通过下冲头31和分开的模具部分32a从内部和外部再培养。因此，凸缘部7a可以在不减少未加工材料6的端部的厚度的情况下弯曲。此外，在弯曲操作中，上冲头33的突出部33a的周面部分接收未加工的材料6和向外的压力施加在端部上。因此，弯曲部分被压向分割的骰子32的大直径部分再培训部分，并且防止弯曲部分的剪切下垂。

3. 发明专利

JP2008151251A Roller bearing cage manufacturing method 审中-公开
标题翻译：滚子轴承制造方法
公开(公告)号：JP2008151251A
公开(公告)日：2008-07-03
申请号：JP2006339422
申请日：2006-12-18
申请人： Ntn Corp , Ntn株式会社
发明人： NAKABASHI MASARU
IPC分类号： F16C33/54 , B21D22/16 , B21D53/12
摘要： PROBLEM TO BE SOLVED: To provide a roller bearing cage manufacturing method using high-yield rolling molding for improving producing efficiency and adaptability for handling a number of models and suppressing the dispersion of the diameter size of a collar portion.
SOLUTION: The manufacturing method is provided for a roller bearing cage which has collar portions formed at both ends of a cylindrical portion extending to the side of the inner diameter. Herein, the cage is rolling-molded while holding a cylindrical raw material 1A inside and outside between a mandrel having an inner peripheral face forming portion 11a corresponding to the inner peripheral face of the cylindrical portion, a collar portion inside face forming portion 11b corresponding to the inside face of the collar portion and a collar portion pressing portion 11c corresponding to the end face of the collar portion, and a molding roll 12 having an outer peripheral face forming portion 12a corresponding to the outer peripheral face of the cylindrical portion and a collar portion outside face forming portion 12b corresponding to the outside face of the collar portion.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用高产率轧制成型的滚子轴承保持架制造方法，用于提高生产效率和适用于处理多个型号并抑制轴环部分的直径尺寸的分散。解决方案：制造方法设置用于滚子轴承保持器，该滚子轴承保持器具有形成在延伸到内径侧的圆筒部的两端的凸缘部。这里，保持架在将筒状原料1A保持在具有与圆筒部的内周面相对应的内周面形成部11a的心轴之间和外侧的状态下成形，套环部分的内表面和与套环部分的端面相对应的凸缘部分按压部分11c，以及具有对应于圆柱形部分的外周面的外周面形成部分12a的成型辊12和一个套环部分外表面形成部分12b对应于套环部分的外表面。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007301632A Die-set for hot-forging 审中-公开
标题翻译：用于锻造的模具
公开(公告)号：JP2007301632A
公开(公告)日：2007-11-22
申请号：JP2006135524
申请日：2006-05-15
申请人： Ntn Corp , Ntn株式会社
发明人： SAITO HISATSUNE , YOSHIOKA MORIHISA , SERA AKIRA , HARADA KUNIAKI , NAKABASHI MASARU
IPC分类号： B21J13/02
摘要： PROBLEM TO BE SOLVED: To provide a high quality forged article with which an upper die-set and a lower die-set can be positioned at high precision while preventing the burnt-sticking of a sliding surface so that the sliding surfaces of an upper guide post of the upper die-set and a lower guide post of the lower die-set in the die-set for hot-forging, can secure the suitable sliding clearance in any time of before thermal-expansion and after thermal-expansion. SOLUTION: A thermal source is arranged in anyone or both of the upper die-set and the lower die-set 2, and in the lower guide post 3 and the upper guide post 4, the first sliding flat surfaces 3a, 4a almost parallel with the shifting direction, in which the guide post 3 of this die-set 2 is shifted in the horizontal surface according to the thermal-expansion of the die-set 2 having the thermal source, are formed, respectively and also, the second sliding flat surfaces 3b, 4b at the right angle or at almost right angle to the first sliding flat surfaces 3a, 4a, in which the sliding clearance C2 can be large according to the above thermal-expansion; are formed, respectively. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供高精度的高品质锻造制品，其可以高精度地定位上模具和下模具，同时防止滑动表面的燃烧粘附，使得滑动表面用于热锻的模具中的上模具的上导向柱和下模组的下引导柱可以在热膨胀之前和热膨胀之后的任何时间确保合适的滑动间隙。解决方案：热源布置在上模组和下模组2中的任一个或两者中，并且在下导向柱3和上导柱4中，第一滑动平面3a，4a 与模具组2的引导柱3的水平面分别相对于具有热源的模具2的热膨胀分别形成与移动方向大致平行的方向，第二滑动平面3b，4b与第一滑动平面3a，4a成直角或几乎成直角，其中滑动间隙C2可以根据上述热膨胀而大; 分别形成。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2011133095A Method for manufacturing retainer, retainer, and needle roller bearing 有权
标题翻译：制造保持器，保持器和针头滚子轴承的方法
公开(公告)号：JP2011133095A
公开(公告)日：2011-07-07
申请号：JP2009295478
申请日：2009-12-25
申请人： Ntn Corp , Ntn株式会社
发明人： NAKABASHI MASARU
IPC分类号： F16C33/54 , B21D53/12 , F16C19/46
CPC分类号： F16C33/543 , F16C19/463
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a retainer, which easily manufacturing a retainer in a desired shape.
SOLUTION: The method for manufacturing the retainer having a nearly V-shaped cross section includes: a preparation process for preparing a small-diameter part to be a base of the retainer, having predetermined thickness, and having a relatively small diameter on one side of an opening, a large diameter part having a relatively large diameter on the other side of the opening, and a stepped cylindrical member with steps and a cylindrical shape having a step part extending to the radial direction to connect the small diameter part and the large diameter part; a diameter-increasing process for extending a diameter to make an area on the opening side in the small diameter part equal to the diameter of the large diameter part using the step part as a reference in the center shaft direction of the stepped cylindrical member while keeping a diameter of a large-diameter part side area in the small diameter part to be the same; and a pressing process for axially pressing the opening side area in the diameter-increased area and the small-diameter part side area.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种容易制造所需形状的保持器的保持器的制造方法。解决方案：具有近似V形横截面的保持器的制造方法包括：制备具有预定厚度并且具有相对较小直径的保持器的基部的小直径部分的制备方法开口的一侧，在开口的另一侧具有相对较大直径的大直径部分，以及具有阶梯形和圆柱形状的阶梯形圆柱形部件，其具有沿径向方向延伸的台阶部分，以将小直径部分和大直径部分; 直径增大过程，用于在保持阶梯状的圆柱形构件的中心轴方向上使用台阶部分作为基准使直径部分的开口侧上的区域等于大直径部分的直径小直径部分中的大直径部分侧面区域的直径相同; 以及用于轴向挤压直径增加区域和小直径部分侧区域中的开口侧区域的压制工艺。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2008309211A Roller bearing cage and its manufacturing method 审中-公开
标题翻译：滚动轴承笼及其制造方法
公开(公告)号：JP2008309211A
公开(公告)日：2008-12-25
申请号：JP2007156134
申请日：2007-06-13
申请人： Ntn Corp , Ntn株式会社
发明人： SERA AKIRA , NAKABASHI MASARU
IPC分类号： F16C33/54 , B21D22/16 , B21D53/12 , B21H1/12
CPC分类号： F16C33/546
摘要： PROBLEM TO BE SOLVED: To provide a roller bearing cage manufactured by roll forming while reducing its process load, and also to provide its manufacturing method. SOLUTION: In the cage which is an integrally rolled product, flange portions are formed at both ends extending to the inner diameter side, and roller holding pockets are provided in a plurality of peripheral positions. Columnar portions between the pockets are each sectionally M-shaped consisting of outer diameter side portions at both ends, an inclined portion ranging from the outer diameter side portions obliquely to the inner diameter side and a central inner diameter side portion. Rolling work includes a raw material arranging process for arranging a cylindrical raw material 1A on the outer periphery of a mandrel 11, and a forming process for moving a forming roll 12 relative to the mandrel 11 to hold the cylindrical raw material 1A to be formed between the mandrel 11 and the forming roll 12. At the initial forming stage of the forming process, plate thickness reducing forming is applied to both ends of the cylindrical raw material 1A with the mandrel 11 and the forming roll 12 to form tapered-shape parts of the flange portions on both sides of the cage. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过辊轧成型制造的滚子轴承保持架，同时降低其加工负荷，并提供其制造方法。解决方案：在作为整体轧制产品的保持架中，在延伸到内径侧的两端形成凸缘部分，并且辊保持袋设置在多个周边位置。这些凹部之间的柱状部分分别是由两端的外径侧部分，从外径侧部分向内径侧倾斜的倾斜部分和中心内径侧部分的M形截面。轧制工序包括在心轴11的外周配置圆筒状原料1A的原料排列工序，以及使形成辊12相对于心轴11移动的成形工序，以将待形成的圆筒原料1A保持在心轴11和成形辊12.在成形处理的初始成形阶段，通过心轴11和成形辊12将圆板原料1A的两端施加板厚减小成形，以形成锥形部分笼子两侧的凸缘部分。版权所有（C）2009，JPO＆INPIT

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