公开(公告)号：US3854355A

公开(公告)日：1974-12-17

申请号：US40372173

申请日：1973-10-04

Applicant: ASEA AB

Inventor： ANEFALL G

IPC: B26F1/00 ,  B21D28/02 ,  B21D28/06 ,  B23D36/00 ,  H02K15/02 ,  B26F1/40

CPC classification number: H02K15/024 ,  B21D28/06 ,  Y10T83/05 ,  Y10T83/051 ,  Y10T83/0577 ,  Y10T83/6582 ,  Y10T83/8742 ,  Y10T83/896

Abstract: For punching sheet segments having substantially annular sector shape, with two radially directed sides, a sheet metal strip of constant width is fed through a punching device which punches out the segments of the desired shape one by one. The sheet metal strip has a width which is more than the air gap radius but less than twice the maximum outer radius of the core. The punching tool is punched in such a way that the cutting edge which forms one of the radially directed sides is parallel to and close to one longitudinal edge of the strip. The unpunched portion of the strip is coiled on a winder-recoiler. After the strip has been fed through in one direction, the position of the strip with respect to the punch (or vice versa) is reversed, and the strip is fed in the other direction through the punch, which punches out similar shaped pieces from the remaining portion of the strip.

Abstract translation: 对于具有基本上环形扇形的冲压片段，具有两个径向指向的侧边，通过冲压装置进给具有恒定宽度的金属板条，该穿孔装置逐一冲出所需形状的段。 金属板条的宽度大于气隙半径但小于芯的最大外半径的两倍。 冲压工具被冲压成使得形成径向指向侧边之一的切削刃平行于并且靠近带的一个纵向边缘。 带材的未打碎部分卷绕在卷绕机上。 在条带沿一个方向进给之后，条带相对于冲头（或反之亦然）的位置被反转，并且条带沿另一个方向通过冲头进给，该冲头从相同的冲头上冲出相似的成形件 条的剩余部分。