公开(公告)号：US3849946A

公开(公告)日：1974-11-26

申请号：US41418773

申请日：1973-11-09

申请人： SANWA KIKO KK

发明人： OGURA T

IPC分类号： B24B23/08 ,  H01R43/14 ,  H02K13/00 ,  B24B19/26

CPC分类号： H01R43/14 ,  B24B23/08

摘要： A grindstone or like block of abrasive material is affixed at the lower end of a first support rod slidably received in a vertical sleeve. A second support rod coupled to the sleeve at a right angle thereto is also slidably received in a hollow offset arm at the upper end of an upright standard. An electromagnet is clamped to the standard for releasably mounting the commutator grinder on a desired commutator machine. The commutator grinder is further equipped with an infeed mechanism and a traverse feed mechanism which enable the grindstone or the like to be fed toward and in the traverse direction of the work. The infeed mechanism comprises a handle, worm gearing, and a feed rod screwthreadedly received in a hollow formed axially of the first support rod, such that the rotation imparted from the handle to the feed rod via the worm gearing is translated into the up-anddown motion of the first support rod relative to the sleeve. The traverse feed mechanism also comprises a handle and a feed rod screw-threadedly received in a hollow formed axially of the second support rod, the rotation of the second mentioned feed rod being likewise translated into the back-and-forth motion of the second support rod relative to the offset arm.

摘要翻译： 研磨材料的磨石或类似块被固定在可滑动地容纳在垂直套筒中的第一支撑杆的下端。 以直角连接到套筒的第二支撑杆也可滑动地容纳在直立标准的上端的空心偏移臂中。 电磁铁被夹紧到标准，以将换向器研磨机可释放地安装在所需的换向器机器上。 换向器研磨机还配备有进给机构和横动进给机构，使得磨石等能够朝着工件的横向方向进给。 进给机构包括手柄，蜗杆传动装置和进给杆，其螺纹地接收在第一支撑杆轴向形成的中空部分中，使得通过蜗轮传动装置从手柄向进给杆施加的旋转被转换成向上 第一支撑杆相对于套筒的下降运动。 横向进给机构还包括手柄和进给杆，该进给杆螺纹地容纳在第二支撑杆的轴向形成的中空部中，第二提及的进给杆的旋转同样被转换成第二支撑件的往复运动 杆相对于偏移臂。