公开(公告)号：US3701275A

公开(公告)日：1972-10-31

申请号：US3701275D

申请日：1970-05-21

申请人： SEAL POWER CORP

发明人： OVERWAY ROY E ,  WARRICK FRANK G

IPC分类号： B21D5/01 ,  B21D28/00 ,  B21D28/26 ,  B23P15/06

CPC分类号： B23P15/065 ,  Y10T29/49249 ,  Y10T29/49274

摘要： A machine for making spacer-expanders for piston oil rings of the type described in United States Pat. No. 3,477,732. The machine comprises a punch press having a plurality of stations through which strip stock is fed progressively in accurately predetermined increments, the strip stock being worked between dies at each station to transform the strip stock into completed rings. The press includes one or more punching stations where the strip stock is pierced and blanked, one or more forming stations where the pierced and notched strip is bent to form the spring legs of the spacer-expander and then curled into a channel-shaped cross-section, a coiling station where the channel-shaped stock is fashioned into a coil, and a cut-off station where each coil is sheared from the strip to form the semi-finished ring. The press also includes a special transfer apparatus for transferring the semi-finished ring to a final work station wherein the end joints are trimmed and formed to final configuration, after which the finished rings are loaded automatically in stacked relation on a cylindrical mandril.

摘要翻译： 用于制造用于活塞油环的间隔物膨胀机的机器，其类型在美国专利No. 第3,477,732号。 该机器包括具有多个工位的冲压机，通过该多个工位，条带坯料以精确的预定增量逐渐进给，在每个工位的模具之间加工条状坯料，以将条状坯料转变成完成的环。 压力机包括一个或多个冲压站，其中带材被刺穿和冲裁，一个或多个成形工位，其中穿孔和切口条弯曲以形成间隔件 - 膨胀机的弹簧腿，然后卷曲成通道形横截面， 截面，其中通道形状的坯料被制成线圈的卷取站，以及每个线圈从条带剪切以形成半成品环的截止站。 压机还包括用于将半成品环转移到最终工作站的特殊传送装置，其中端部接头被修整并形成为最终构造，之后将成品环以堆叠关系自动装载在圆筒形心轴上。