公开(公告)号：US06289710B1

公开(公告)日：2001-09-18

申请号：US09479969

申请日：2000-01-10

申请人： Keita Ozeki

发明人： Keita Ozeki

IPC分类号： B21K112

CPC分类号： B21K1/768 ,  B21K1/767 ,  F16H55/26

摘要： A method for manufacturing a hollow rack bar having a flat portion thick enough, which prevents difficulty in pulling out a core after press working. The flat portion is formed by inserting the core having an approximately central depression in the longitudinal direction into a steel pipe and pressing the steel pipe from the outside by an upper and a lower dies. Subsequent to the formation of the flat portion, rack teeth are formed by placing the steel pipe in a tooth profile forming die and forcibly inserting a mandrel into the steel pipe.

摘要翻译： 一种用于制造具有足够厚度的平坦部分的空心齿条的方法，其防止在冲压加工之后拉出芯的困难。 平坦部分通过将具有大致中心凹陷的芯沿长度方向插入钢管中并通过上模和下模从外部挤压钢管而形成。 在形成平坦部分之后，通过将钢管放置在齿形成形模具中并将心轴强制地插入钢管中而形成齿条齿。

公开(公告)号：US06826945B1

公开(公告)日：2004-12-07

申请号：US09446704

申请日：1999-12-23

申请人： Werner Breitweg ,  Bernd Koziara ,  Alfred Brenner

发明人： Werner Breitweg ,  Bernd Koziara ,  Alfred Brenner

IPC分类号： B21K112

CPC分类号： F16H55/26 ,  B21K1/767 ,  B21K1/768 ,  B62D3/123 ,  B62D3/126 ,  Y10T29/49478 ,  Y10T74/1967

摘要： A technique for manufacturing a gear rack (5) for a rack-and-pinion steering gear for automobiles makes use of a blank (18) for the gear rack (5) having at least in the latter's toothed area a form deviating from a circular cylinder. Size and form of the cross-section of the blank (18) are selected in a manner that the contour of the finished gear rack (5) in the toothed area (7) does not project beyond the envelope given by the dimensions of neighboring parts of the rack-and-pinion steering gear. The gear rack (5) is formed from the blank (18) by means of tumble-forging. After tumble-forging, the gear rack (5) in its toothed area (7) outside the toothed section has a convex or concave longitudinal profile, which serves to support the tumbling torques during tumble-forging.

摘要翻译： 用于制造用于汽车的齿条齿轮转向齿轮的齿条（5）的技术利用用于齿条（5）的坯件（18），其具有至少在后者的齿形区域中偏离圆形的形状 圆筒。 选择坯料（18）的横截面的尺寸和形状，使得齿形区域（7）中的成品齿条（5）的轮廓不会突出超过由相邻部分的尺寸给出的包络 的齿轮齿轮转向装置。 齿条（5）通过滚道锻造从坯件（18）形成。 在翻滚锻造之后，齿形区域（7）内的齿形区域（7）上的齿条（5）具有凸形或凹形的纵向轮廓，其用于在翻转锻造期间支撑翻滚扭矩。

公开(公告)号：US06581284B2

公开(公告)日：2003-06-24

申请号：US10267780

申请日：2002-10-10

申请人： Henning Bloecker ,  Martin Kruessmann ,  Jochen Paus

发明人： Henning Bloecker ,  Martin Kruessmann ,  Jochen Paus

IPC分类号： B21K112

CPC分类号： B21D26/033 ,  B21D39/06 ,  B21D39/203 ,  B21D53/845 ,  B23P11/022 ,  B23P2700/02 ,  Y10T29/49293 ,  Y10T29/49805 ,  Y10T29/49927 ,  Y10T29/4994 ,  Y10T29/53 ,  Y10T29/53313

摘要： A device and method for joining fitting parts provided with a passage opening on hollow profiles through partial expansion of the hollow profiles at the location of the fitting parts is provided. The fitting parts are slid on with the passage openings and are held in position by means of fluid high internal pressure expansion of the hollow profile. The device includes an expanding lance, which can be slid into the hollow profile and exhibits an axial borehole for the purpose of guiding the pressure fluid. The axial borehole is connected to a fluid high pressure generating system and exhibits a cross channel with an outlet for the pressure fluid in the direction of the hollow profile location to be expanded. The shell surface of the expanding lance exhibits sealing elements that are spaced apart and that define the outlet so as to seal axially on both sides against high pressure. To a reliable joining of the fitting parts on hollow profiles even when the hollow profiles exhibit small outer diameters, it is proposed that the expanding lance comprises two separate, aligned oblong components, of which at least one bears the axial borehole which empties freely on an end face near the outlet. The facing ends of the lance components form the cross channel for the axial borehole of the expanding lance. Furthermore, the device includes a drive unit operable to drive the two lance components into respective hollow profile ends, and are supported on an end side during the expansion phase.

公开(公告)号：US06804884B1

公开(公告)日：2004-10-19

申请号：US10048983

申请日：2002-07-02

申请人： Manfred Vogel

发明人： Manfred Vogel

IPC分类号： B21K112

CPC分类号： F16C3/023 ,  B23P11/00 ,  B23P2700/02 ,  F01L1/047 ,  F16C2360/18 ,  F16C2361/61 ,  F16D1/0858 ,  F16H53/025 ,  Y10T29/49286 ,  Y10T29/49293 ,  Y10T29/49863 ,  Y10T29/49885 ,  Y10T29/49998 ,  Y10T74/2101

摘要： A method for producing an assembled shaft, especially an assembled camshaft, whereby parts, especially cams, are placed on a shaft in predetermined axial and peripheral positions and joined by compression pressure in a friction-tight manner. The cams in the thrust direction have a lubrication groove which surrounds the inner bore thereof and which is essentially wedge-shaped with a linear or curved slope, running in the direction of the wall of the bore. When the cam is slid on the shaft into the predetermined axial position, a lubricant is introduced into the groove. This lubricant is pulled continuously groove into the inner bore of the cam during the push-on process to significantly reduce friction between the inner bore and the shaft.

摘要翻译： 一种用于生产组装轴，特别是组装的凸轮轴的方法，其中部件，特别是凸轮以预定的轴向和周边位置放置在轴上，并且以摩擦紧密的方式通过压缩压力连接。 推力方向上的凸轮具有围绕其内孔的润滑槽，该润滑槽基本上是楔形的，具有在孔的壁的方向上延伸的线性或弯曲的斜面。 当凸轮在轴上滑动到预定的轴向位置时，润滑剂被引入槽中。 在推进过程中，该润滑剂被连续地拉入凸轮的内孔，以显着地减少内孔和轴之间的摩擦。