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1. 发明授权

US06336351B1 Method of manufacturing spline shaft 失效
标题翻译：花键轴的制造方法
公开(公告)号：US06336351B1
公开(公告)日：2002-01-08
申请号：US08842990
申请日：1996-12-20
申请人： Akio Kobayashi , Katsuyuki Morozumi
发明人： Akio Kobayashi , Katsuyuki Morozumi
IPC分类号： B21K130
CPC分类号： B21K1/10 , B21C37/30 , B21K1/063 , B21K1/066 , B21K3/00
摘要： A method of manufacturing a spline shaft, comprising ironing a hollow stock by cold forging and forming splines in a desired portion of said hollow stock by cold forging by using its work harden state. This method makes it possible to reduce the weight of a product by using a hollow stock, and to prevent buckling of the material of the hollow stock during the formation of splines owing to work-hardening caused by the ironing. Further, a predetermined root strength can be ensured without requiring induction hardening. Accordingly, a reduction in weight is achieved, and the production speed and yield are improved.
摘要翻译：一种花键轴的制造方法，其特征在于，包括通过冷锻而使中空坯料进行熨烫，并通过使用其加工硬化状态进行冷锻而在所述中空坯料的所需部分形成花键。该方法使得可以通过使用中空坯料来减小产品的重量，并且防止由于熨烫引起的加工硬化而在形成花键期间中空坯料的屈曲。此外，可以确保预定的根强度，而不需要感应淬火。因此，实现了重量的减轻，并且提高了生产速度和产率。

2. 发明授权

US06470728B2 Cold forging method and apparatus 失效
标题翻译：冷锻方法及装置
公开(公告)号：US06470728B2
公开(公告)日：2002-10-29
申请号：US09754127
申请日：2001-01-05
申请人： Yoshio Sekiguchi
发明人： Yoshio Sekiguchi
IPC分类号： B21K130
CPC分类号： B21K1/12 , B21J5/02 , B21J5/12 , B21K1/30 , B21K1/305
摘要： A stock inserted into a die is sandwiched between a punch and a knock-out, a predetermined pressing force is applied to the knock-out, and a pressing force larger than the sum of the pressing force of the knock-out and a pressing force for forming is applied to the punch to effect a forming work, whereby the forming accuracy can be enhanced and a final product can be obtained by going through only a slight finishing work.
摘要翻译：插入模具中的坯料被夹在冲头和脱模之间，对敲除施加预定的按压力，并且大于敲出的按压力和按压力之和的按压力为了进行成形加工，将冲压加工成冲模，由此能够提高成形精度，仅通过稍微的精加工即可得到最终的成品。

3. 发明授权

US06688153B2 Toothed part with a shaft and molding method for the same 失效
标题翻译：带轴的齿形零件和成型方法相同
公开(公告)号：US06688153B2
公开(公告)日：2004-02-10
申请号：US09818292
申请日：2001-03-27
申请人： Hisanobu Kanamaru , Nobuyuki Ishinaga , Toshio Suzuki
发明人： Hisanobu Kanamaru , Nobuyuki Ishinaga , Toshio Suzuki
IPC分类号： B21K130
CPC分类号： B21K1/30 , B21K1/063 , B21K1/066 , B21K1/12 , B21K23/04 , Y10T74/1987
摘要： A method for producing a unitary toothed part with a shaft and the resulting products. In the process, a blank is formed. The blank includes a shaft part and a flange part. The flange part having a thicker outer diameter and a thinner inner diameter. The outer diameter is formed into a tubular part by drawing. A plurality of teeth and remnants are formed by extruding the tubular part. At least one spline is formed by extruding the shaft part. Through the steps of forming, drawing, and extruding, a blank is made into a unitary part having teeth and a shaft thus increasing precision, rigidity, durability, and reducing forming costs.
摘要翻译：一种用于制造具有轴的整体齿形部件的方法以及所得到的产品。在该过程中，形成空白。坯件包括轴部和凸缘部。凸缘部分具有较厚的外径和较薄的内径。通过拉伸将外径形成为管状部。通过挤压管状部件形成多个齿和残留物。通过挤压轴部形成至少一个花键。通过成型，拉伸和挤出的步骤，将坯料制成具有齿和轴的整体部件，从而提高精度，刚性，耐久性和降低成形成本。

4. 发明授权

US06536257B2 Speed-changing gear manufacturing apparatus 失效
标题翻译：变速齿轮制造装置
公开(公告)号：US06536257B2
公开(公告)日：2003-03-25
申请号：US09837295
申请日：2001-04-19
申请人： Sakae Nishigori , Tadashi Okumura
发明人： Sakae Nishigori , Tadashi Okumura
IPC分类号： B21K130
CPC分类号： B21K1/30 , B21J5/12 , Y10T29/49474
摘要： For the purpose of providing a speed-changing gear manufacturing apparatus capable of forming back-tapered spline teeth having a chamfer at the tip with high accuracy, by forming both side faces of spline teeth in back-tapered shape and forming the tip in chamfered shape at a time, the present invention is a speed-changing gear manufacturing apparatus comprising dies formed at regular intervals on a circumference, to enable to move a plural number of spline teeth forming units for forming back-tapered spline teeth on lines extending radially from the center axis of the gear material, and a pressing member for moving the spline teeth forming units toward the center axis of the gear material, by pressing the outer circumferential face of the spline teeth forming units of the dies, wherein said spline teeth forming units are constructed in a way to form an open space in which to form both side faces of spline teeth in back-tapered shape and form the tip in chamfered shape at a time, in contact with the adjacent spline teeth forming units and between two adjacent spline teeth forming units, by moving the spline teeth forming units toward the center axis of the gear material.
摘要翻译：为了提供一种变速齿轮制造装置，其能够以高精度形成在前端具有倒角的后锥形花键齿，通过形成后锥形的花键齿的两个侧面并以倒角形状形成尖端本发明是一种变速齿轮制造装置，其包括在圆周上以规则的间隔形成的模具，能够移动多个花键齿形成单元，用于形成从锥形齿轮径向延伸的线上形成后锥形花键齿齿轮材料的中心轴线，以及用于通过按压模具的花键齿形成单元的外圆周面而使花键齿形成单元朝向齿轮材料的中心轴线移动的加压构件，其中所述花键齿形成单元是以形成开放空间的方式构造，其中形成后锥形的花键齿的两个侧面并且一次形成倒角形状的尖端，在co 通过使花键齿形成单元朝向齿轮材料的中心轴线移动，与相邻的花键齿形成单元和两个相邻的花键齿形成单元之间相交。

5. 发明授权

US06178801B2 Forging device for crown-shaped helical gear 失效
标题翻译：冠形斜齿轮锻造装置
公开(公告)号：US06178801B2
公开(公告)日：2001-01-30
申请号：US09270116
申请日：1999-03-16
申请人： Hitoshi Ishida
发明人： Hitoshi Ishida
IPC分类号： B21K130
CPC分类号： B21K1/30 , B21K1/305 , Y10T29/49474
摘要： Crown twist forming teeth (14) are formed on the inside circumferential surface of a finishing die (13) with the thickness of each teeth being thinner in the middle part than toward both ends in the axial direction. The finishing die (13) is fitted for axial sliding in the axial direction in the axially central part of a die holder (11) through taper surfaces (12a, 13a) diminishing from its one end to the other. A half-finished work (35, 35′) with its outside circumferential surface having rough-formed twist teeth is brought into screw engagement with the finishing die (13). A first punch (25) for pressing the half-finished work (35, 35′) from one axial end toward the other, and a second punch (26) for pressing the finishing die (13) from one axial end toward the other are provided. A rotary device (30) is provided to rotate the die holder (11) in the direction opposite the direction in which the half-finished work (35, 35′) is rotated with the finishing die (13) when the first and second punches (25, 26) are working under pressure. This makes it possible to form with a forging device a helical gear having crown-formed twist teeth, with each tooth being thicker in its middle part in its axial direction than on its both ends.
摘要翻译：冠精加工齿（14）形成在精加工模具（13）的内圆周表面上，其中每个齿的厚度在中间部分比在轴向方向上的两端更薄。精加工模具（13）通过从其一端向另一端减小的锥形表面（12a，13a）装配成在模具保持器（11）的轴向中心部分沿轴向方向轴向滑动。具有粗糙扭曲齿的外周面的半成品（35,35'）与精加工模具（13）进行螺纹接合。用于将半成品（35,35'）从一个轴向端朝向另一个轴向挤压的第一冲头（25）和用于将精整模（13）从一个轴向端向另一个轴向端挤压的第二冲头（26）提供。旋转装置（30）被设置成当第一和第二冲头（13）处于与模制工具（35,35'）旋转的方向相反的方向上旋转模具保持器（11）（25,26）在压力下工作。这使得可以用锻造装置形成具有冠形扭转齿的斜齿轮，其每个齿在其中间部分沿其轴向方向比在其两端更厚。

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