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    • 12. 发明授权
    • Pressing tool for forming winding end turns in a stator
    • 按压工具
    • US6155094A
    • 2000-12-05
    • US142681
    • 1998-10-01
    • Peter Michael NormanKeith Alan Witwer
    • Peter Michael NormanKeith Alan Witwer
    • H02K15/00B21D22/00
    • H02K15/0037
    • A press tool for forming a compressible mass into an annulus of given inner and outer diameters and axial length, the tool having radially movable outer and inner tool parts adapted to expand and contract, respectively, to form the mass to the desired inner and outer diameters. An axially movable annular member includes a working face for forming the compressible mass to the desired axial length. Each of the tool parts include a first array of radially movable members, each formed with a head having a working face curved to the desired diameter and a second interposed array of radially movable members also having a head having a working face. A central portion of the working face is curved to the desired diameter and opposed sloping outer portions are shaped for sliding against rear-faces of the heads of respective adjacent members of the first array. The first and second arrays of movable members can be radially moved to compress the compressible mass into the desired diameter and so that during at least a part of the radial movement, the heads of the first and second arrays form continuous and substantially annular surfaces.
    • PCT No.PCT / GB97 / 00623 Sec。 371日期:1998年10月1日 102(e)1998年10月1日日期PCT 1997年3月10日PCT公布。 公开号WO97 / 34358 日期1997年9月18日一种用于将可压缩物料形成为给定的内径和外径和轴向长度的环形空间的冲压工具,该工具具有分别适于膨胀和收缩的径向可移动的外部和内部工具部件, 所需的内径和外径。 可轴向移动的环形构件包括用于将可压缩物质形成到所需轴向长度的工作面。 每个工具部件包括第一阵列的可径向移动的部件,每个形成有具有弯曲成所需直径的工作面的头部,以及具有工作面的头部的径向可移动部件的第二插入阵列。 工作面的中心部分弯曲成所需的直径,并且相对的倾斜外部部分被成形为滑动抵靠第一阵列的各相邻部件的头部的后表面。 可移动构件的第一和第二阵列可以径向移动以将可压缩物质压缩成期望的直径,并且使得在至少一部分径向移动期间,第一和第二阵列的头部形成连续且基本上环形的表面。