A motor pack for an electrically driven tool includes at least one electric motor and a linearly displaceable member coupled to the electric motor such that the linearly displaceable member is displaced axially by operation of the at least one electric motor. The motor pack further includes a housin
A motor pack for an electrically driven tool includes at least one electric motor and a linearly displaceable member coupled to the electric motor such that the linearly displaceable member is displaced axially by operation of the at least one electric motor. The motor pack further includes a housing enclosing the electric motor and at least partially enclosing the linearly displaceable member. The housing includes a front plate to which a tool head may be removably coupled. The front plate has an aperture formed therein through which the linearly displaceable element can be coupled to a moveable element in the tool head. The motor pack also includes tool control circuitry enclosed within the housing and electrically coupled to the electric motor to control operation thereof.
대표청구항▼
What is claimed is: 1. A motor pack for an electrically driven tool, said motor pack comprising: at least one electric motor; a linearly displaceable member coupled to the at least one electric motor such that said linearly displaceable member is displaced axially by operation of the at least one e
What is claimed is: 1. A motor pack for an electrically driven tool, said motor pack comprising: at least one electric motor; a linearly displaceable member coupled to the at least one electric motor such that said linearly displaceable member is displaced axially by operation of the at least one electric motor, a housing enclosing the at least one electric motor and at least partially enclosing the linearly displaceable member, said housing including a front plate including attachment means for removably coupling a housing of a tool head abutting said front plate, said front plate having an aperture formed therein through which said linearly displaceable member is removably coupled to a moveable element in the tool head; and tool control circuitry enclosed within the housing and electrically coupled to the at least one electric motor to control operation of the at least one electric motor. 2. The motor pack of claim 1, wherein said linearly displaceable member comprises a lead screw extending axially through said at least one electric motor. 3. The motor pack of claim 1, wherein said linearly displaceable member extends from said housing through said aperture in said front plate. 4. The motor pack of claim 1, and further comprising a manual input device at an exterior of said housing for entry of tool commands, wherein said manual input device is electrically coupled to said tool control circuitry, and wherein said tool control circuitry, responsive to entry of a tool command utilizing said manual input device, operates said at least one electric motor to linearly displace said linearly displaceable member. 5. The motor pack of claim 4, wherein said manual input device comprises at least one manually actuated button. 6. The motor pack of claim 1, and further comprising a manual input device at an exterior of said housing electrically coupled to said tool control circuitry, wherein said tool control circuitry, responsive to entry of a teach command at said manual input device, memorizes a terminal position of said linearly displaceable member. 7. The motor pack of claim 1, wherein said linearly displaceable member comprises a threaded lead screw, and wherein said motor pack further comprises: a first sprocket coupled to said at least one electric motor for rotation therewith; a second sprocket spaced apart from said first sprocket, said second sprocket having a threaded through hole through which said lead screw passes; a drive belt coupling said first and second sprockets, such that rotation of said first sprocket by said at least one electric motor rotates said second sprocket and axially displaces said lead screw. 8. The motor pack of claim 7, and further comprising a bearing supporting the lead screw. 9. A motor pack for an electrically driven tool said motor pack comprising: an electric motor, a lead screw extending axially through and coupled to the electric motor such that the lead screw is displaced axially by operation of the electric motor, a housing enclosing the electric motor and at least partially enclosing the lead screw, said housing including a front plate to which a tool head may be removably coupled, said front plate having an aperture formed therein through which said lead screw is removably coupled to a moveable element in the tool head; and tool control circuitry enclosed within the housing and electrically coupled to the electric motor to control operation of the electric motor. 10. The motor pack of claim 9, wherein said lead screw extends from said housing through said aperture in said front plate. 11. The motor pack of claim 9, said front plate further comprising attachment means for coupling the tool head to said housing. 12. The motor pack of claim 9, and further comprising a manual input device at an exterior of said housing for entry of tool commands, wherein said manual input device is electrically coupled to said tool control circuitry, and wherein said tool control circuitry, responsive to entry of a tool command utilizing said manual input device, operates said at least one electric motor to axially displace said lead screw. 13. The motor pack of claim 12, wherein said manual input device comprises at least one manually actuated button. 14. The motor pack of claim 9, and further comprising a manual input device at an exterior of said housing electrically coupled to said tool control circuitry, wherein said tool control circuitry, responsive to entry of a teach command at said manual input device, memorizes a terminal position of said lead screw. 15. A motor pack for an electrically driven tool, said motor pack comprising: at least one electric motor; a first sprocket coupled to said at least one electric motor for rotation therewith; a treaded lead screw; a second sprocket spaced apart from said first sprocket, said second sprocket having a threaded through hole engaging threads of said threaded lead screw; a drive belt coupling said first and second sprockets, such that rotation of said first sprocket by said at least one electric motor rotates said second sprocket and axially displaces said lead screw; a housing enclosing the first and second sprockets, said drive belt, said at least one electric motor, and at least partially enclosing the lead screw, said housing including a front plate to which a tool head may be removably coupled, said front plate having an aperture formed therein through which said lead screw can be coupled to a moveable element in the tool head; and tool control circuitry enclosed within the housing and electrically coupled to the at least one electric motor to control operation of the at least one electric motor. 16. The motor pack of claim 15, wherein said lead screw extends from said housing through said aperture in said front plate. 17. The motor pack of claim 15, and further comprising a manual input device at an exterior of said housing for entry of tool commands, wherein said manual input device is electrically coupled to said tool control circuitry, and wherein said tool control circuitry, responsive to entry of a tool command utilizing said manual input device, operates said at least one electric motor to linearly displace said lead screw. 18. The motor pack of claim 17, wherein said manual input device comprises at least one manually actuated button. 19. The motor pack of claim 15, and further comprising a manual input device at an exterior of said housing electrically coupled to said tool control circuitry, wherein said tool control circuitry, responsive to entry of a teach command at said manual input device, memorizes a terminal position of said lead screw.
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