公开(公告)号：USD394663S

公开(公告)日：1998-05-26

申请号：US52134

申请日：1996-03-25

申请人： Paul Andrew Stone ,  Rickey James Thomas ,  Chris McKenna ,  Timothy T. McKenzie ,  Richard Alan Adams

设计人： Paul Andrew Stone ,  Rickey James Thomas ,  Chris McKenna ,  Timothy T. McKenzie ,  Richard Alan Adams

公开(公告)号：US06290439B1

公开(公告)日：2001-09-18

申请号：US09215159

申请日：1998-12-18

申请人： Thomas Trevor Bludis ,  Stephen R. Crosby ,  Timothy T. McKenzie ,  Paul Andrew Stone ,  Jeffrey W. Tartamella ,  Rickey James Thomas ,  Richard Alan Adams

发明人： Thomas Trevor Bludis ,  Stephen R. Crosby ,  Timothy T. McKenzie ,  Paul Andrew Stone ,  Jeffrey W. Tartamella ,  Rickey James Thomas ,  Richard Alan Adams

IPC分类号： B23B5102

CPC分类号： B21J5/12 ,  B21J9/00 ,  B21J9/02 ,  B21K5/02 ,  B21K27/02 ,  B23P15/28 ,  B27G15/00 ,  Y10T29/5198 ,  Y10T408/906 ,  Y10T408/9065 ,  Y10T408/909

摘要： The present invention provides a method and apparatus for forming a plurality of parts, such as spade-type boring bits, from a continuous stock material. Thus, the various steps of the forming method of the present invention can be performed to predetermined portions of the continuous stock material prior to separating the continuous stock material into discrete parts, thereby enhancing the efficiency of the forming process. The present invention also provides an improved forge for forming portions of the continuous stock material into parts having a predetermined shape. The forge can be designed to provide a clearance region proximate the forward end of the ram to permit slight flexing of the forward end of the ram in a radially outward direction during forging operations. The forge can also include a lubrication system for lubricating its various components. In addition, the forge can incrementally rotate the ram after one or more parts have been forged. By repeating the incremental rotation of the ram, the forge will eventually rotate the ram a full 360°. An improved forging die is also provided which includes a back surface having a conical medial section and a pair of conical lateral sections that are recessed relative to the medial section such that forces will principally be applied to the medial section during forging operations.

摘要翻译： 本发明提供一种从连续原料形成多个零件，例如铲形钻头的方法和装置。 因此，本发明的成形方法的各个步骤可以在将连续坯料分离成离散部分之前，对连续原料的预定部分进行，从而提高成形过程的效率。 本发明还提供了一种用于将连续坯料的部分形成为具有预定形状的部件的改进的锻造。 锻造可被设计成提供靠近冲头的前端的间隙区域，以允许在锻造操作期间沿径向向外的方向使冲头的前端略微弯曲。 锻造还可以包括用于润滑其各种部件的润滑系统。 此外，锻造可以在锻造一个或多个零件之后逐渐地旋转压头。 通过重复冲压器的增量旋转，锻造将最终使压头旋转360度。 还提供了一种改进的锻造模具，其包括具有圆锥形中间部分的后表面和相对于中间部分凹陷的一对锥形横向部分，使得在锻造操作期间主要将力施加到中间部分。

公开(公告)号：US5697738A

公开(公告)日：1997-12-16

申请号：US514071

申请日：1995-08-11

申请人： Paul Andrew Stone ,  Rickey James Thomas ,  Timothy T. McKenzie ,  Richard Alan Adams

发明人： Paul Andrew Stone ,  Rickey James Thomas ,  Timothy T. McKenzie ,  Richard Alan Adams

IPC分类号： B23B51/00 ,  B21J5/02 ,  B21J5/12 ,  B21J9/06 ,  B21K5/02 ,  B21K27/00 ,  B21K27/02 ,  B23P15/28 ,  B27G15/00

CPC分类号： B21J9/06 ,  B21J5/12 ,  B21K27/02 ,  B21K5/02 ,  B23P15/28 ,  B27G15/00 ,  Y10T408/03 ,  Y10T408/902 ,  Y10T408/9065 ,  Y10T408/9093

摘要： The spade-type boring bit includes an elongate shank defining a central longitudinal axis and a blade portion joined to one end of the shank. The blade portion includes a pair of generally flat side segments extending laterally from the central longitudinal axis and having a respective forward cutting edge and a respective chamfered corner portion. Each chamfered corner portion includes a chamfered edge which extends both axially rearward and laterally outward from the respective forward cutting edge so as repeatedly cut the peripheral wall of the resulting hole as the spade bit is rotatably advanced through a workpiece. The spade bit therefore produces a high-quality hole having a smooth peripheral wall and relatively clean entry and exit points. In addition, the forward cutting edges of the spade bit can be aligned with each other along a centerline which passes through the central longitudinal axis of the elongate shaft so as to increase the efficiency with which the spade bit drills. The spade bit also includes a spur joined to and extending axially from the forward end of the blade portion. The spur can include spur cutting edges separated radially, angularly and, in some instances, longitudinally or axially from the forward cutting edge of the adjacent side segment to prevent accumulation of chip swarf between the spur cutting edge and the adjacent forward cutting edge.

摘要翻译： 铲形钻头包括限定中心纵向轴线的细长柄和连接到柄的一端的刀片部分。 叶片部分包括从中心纵向轴线横向延伸并且具有相应的前切割边缘和相应倒角部分的一对大致平坦的侧部分段。 每个倒角部分包括倒角边缘，其从相应的前切削刃轴向向后和向外延伸，从而当铲形刀头可旋转地推进通过工件时反复切割所得孔的周壁。 因此，铲形钻头产生具有光滑周边壁和相对干净的入口和出口点的高品质孔。 此外，铲形钻头的前切削刃可以沿着穿过细长轴的中心纵向轴线的中心线彼此对准，以便提高铲钻钻头的效率。 铲形钻头还包括连接到叶片部分的前端并从叶片部分的前端轴向延伸的凸起。 支柱可以包括从相邻侧段的前切割刃径向地，有角度地，并且在一些情况下沿纵向或轴向分开的尖锐切削刃，以防止切屑切割边缘与相邻前切削刃之间的堆积。