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    • 8. 发明授权
    • Production assembly tool
    • 生产装配工具
    • US5738177A
    • 1998-04-14
    • US687309
    • 1996-07-25
    • Craig A. SchellJames R. ParksTodd A. HaganPradeep Kumar NandamRouse R. Bailey, Jr.
    • Craig A. SchellJames R. ParksTodd A. HaganPradeep Kumar NandamRouse R. Bailey, Jr.
    • B25B21/00B23P19/06B25B23/14B25B23/147B25B23/157B25F5/00B25F5/02H03K17/687
    • B25F5/001B25B23/14B25B23/141B25B23/1415B25B23/147B25F5/02H03K17/6871
    • A production assembly tool for securing fasteners to a workpiece such as an automobile body. The production assembly tool of the present invention includes a housing which encases a motor, a transmission, a clutch mechanism and a control module. The control module controls the running and braking of the motor and prevents both over and under securing of a fastener caused by falsely detected tool clutch conditions. An improved clutch sensor switch is operatively associated with the control module for detecting clutch disengagement. The clutch mechanism is designed to drive the fastener until the clutch sensor switch detects clutch disengagement and signals the control circuit to stop drive and start braking. The production assembly tool further includes a system for ensuring accurate placement of the power tool motor in the power tool housing subsequent to motor servicing or repair. Further, an adjustment collar located in the tool nose allows selective access to a clutch adjustment mechanism of the tool located within the housing for torque level adjustment. In addition, the tool housing is covered by an integral, self-sealing non-marring overmold exterior. The overmold exterior allows a lubrication needle to be inserted through an aperture located beneath the overmold exterior. After the needle is removed, the overmold exterior subsequently self-seals, thereby preventing dirt from entering the interior of the tool housing and the applied lubrication from leaking.
    • 一种用于将紧固件固定到诸如汽车车身的工件的生产组装工具。 本发明的生产装配工具包括一个外壳,其包围电动机,变速器,离合器机构和控制模块。 控制模块控制电机的运行和制动,并防止由于错误检测到的工具离合器条件而导致的紧固件的过度和过紧。 改进的离合器传感器开关与用于检测离合器分离的控制模块可操作地相关联。 离合器机构设计用于驱动紧固件,直到离合器传感器开关检测到离合器分离,并向控制电路发出信号以停止驱动并开始制动。 生产装配工具还包括一个系统,用于在马达维修或修理之后确保电动工具电机在动力工具壳体中的精确放置。 此外,位于刀尖中的调节套环允许选择性地进入位于壳体内的工具的离合器调节机构以进行扭矩水平调整。 此外,工具外壳由一体式,自密封的非破损外覆模制外壳覆盖。 包覆模制外部允许润滑针穿过位于包覆模制外部下方的孔。 在取下针之后,包覆模制外部随后自密封,从而防止灰尘进入工具壳体的内部,并且所施加的润滑剂不会泄漏。