Spindle control mechanism

Details Spindle control mechanism Spindle control mechanism

B - Operations, Transporting

23

B

82/9

B23B 19/02 (2006.01)

Patent

CA 1128342

IMPROVED SPINDLE CONTROL MECHANISM Abstract of the Disclosure An improved spindle control mechanism for a lathe that includes, in preferred form, a rotatable control knob operably related to a plurality of spindle motor control and servo-control switches by a switch drum fixed thereto and operably connected to a spindle transmission through a control shaft by a connector link pivoted in an eccentric position at one end to the control knob and pivoted at the other end to a lever arm fixed to the control shaft. Rotation of the control knob into a forward position simultaneously translates the lathe's transmission into a forward spindle rotation position and starts the spindle drive motor. Rotation of the control knob into an intermediate stop position simultaneously stops the spindle drive motor and acti- vates the spindle servo-control switch (which permits the spindle's rotation speed to be changed by a separate spindle servo-control mechanism, if desired). Rotation of the control knob into a reverse position simultaneously translates the transmission into a reserve spindle rotation position and starts the spindle drive motor.

339675

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