Power spindle for electrochemical grinding
    1.
    发明授权
    Power spindle for electrochemical grinding 失效
    电化学研磨用电枢丝

    公开(公告)号:US3616428A

    公开(公告)日:1971-10-26

    申请号:US3616428D

    申请日:1969-09-05

    Applicant: KMS IND INC

    Inventor: BOGUE DAVID L

    CPC classification number: H01R39/646 B23H11/006

    Abstract: A power spindle for electrochemical grinding machine utilizing a grinding wheel, there being an electrical connection to the moving wheel accomplished through a body of mercury. An annular recess formed in a drive housing on the rotating spindle confines the body of mercury and an annular plate, insulated from the spindle and forming a drive motor, is mounted in a manner to be supported by the motor and fastened to project into the annular recess to create an electrical connection between a secondary housing surrounding the motor and the drive housing which rotates with the spindle.

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