Hydraulic compression tool and hydraulic compression tool motor

A transmission for connecting a rotary motor output shaft to a rectilinear actuator which is movable rectilinearly along an actuator axis of translation, the transmission comprising:

• a frame with a bore formed therein;
• an eccentric adapted to position the frame on the rotary motor output shaft, the eccentric being rotatably mounted in the bore of the frame to rotate relative to the frame;
• and
• a rectilinear guide connected to the frame, the rectilinear guide having a slide surface adapted to be slidably seated against the rectilinear actuator allowing the frame to slide substantially rectilinearly relative to the rectilinear actuator, wherein the rectilinear guide comprises a pin, an outer surface of the pin forming the slide surface.

A hydraulic tool drive comprising:

• a frame with a hydraulic reservoir;
• a hydraulic ram movably mounted to the frame;
• a pump connected to the frame, the pump having a pump piston for pumping hydraulic fluid to move the hydraulic ram relative to the frame;
• a motor connected to the frame, the motor having an output shaft that rotates about an axis of rotation when the motor is operating;
• and
• a link operably connecting the output shaft to the pump piston for generating reciprocating movement of the pump piston when the motor is operating, wherein the link is rotatably mounted on the output shaft and is pivotable at least at one end relative to the frame, wherein the link has an end which is movably mounted to the pump piston so that the link moves freely relative to the pump piston.

A hydraulic tool drive comprising:

• a frame with a hydraulic reservoir;
• a hydraulic ram movably mounted to the frame;
• a pump connected to the frame, the pump having a pump piston for pumping hydraulic fluid to move the hydraulic ram relative to the frame;
• a motor connected to the frame, the motor having an output shaft that rotates about an axis of rotation when the motor is operating;
• and
• a link operably connecting the output shaft to the pump piston for generating reciprocating movement of the pump piston when the motor is operating, wherein the link is rotatably mounted on the output shaft and is pivotable at least at one end relative to the frame, wherein the at least one end of the link is pivotally connected to the pump piston by a pin.

A hydraulic tool drive comprising:

• a frame with a hydraulic reservoir;
• a hydraulic ram movably mounted to the frame;
• a pump connected to the frame, the pump having a pump piston for pumping hydraulic fluid to move the hydraulic ram relative to the frame;
• a motor connected to the frame, the motor having an output shaft that rotates about an axis of rotation when the motor is operating;
• and
• a link operably connecting the output shaft to the pump piston for generating reciprocating movement of the pump piston when the motor is operating, wherein the link is rotatably mounted on the output shaft and is pivotable at least at one end relative to the frame, wherein the link has a recess in one end, at least one end of the pump piston being located in the recess.

A hydraulic tool drive comprising:

• a frame with a hydraulic reservoir;
• a hydraulic ram movably mounted to the frame;
• a pump connected to the frame, the pump having a pump piston for pumping hydraulic fluid to move the hydraulic ram relative to the frame, the pump piston being movable relative to the pump along an axis of rotation;
• a motor connected to the frame, the motor having rotary output shaft;
• and
• a collar connected to the rotary output shaft and having a joint at which the collar is movably joined to the pump piston to move relative to the pump piston along another axis of translation which is substantially orthogonal to the axis of translation of the pump piston, wherein the collar comprises a frame with a generally cylindrical bore in which the rotary output shaft is eccentrically located, the frame having a clevis at one end which forms the joint in the collar.

A hydraulic tool drive comprising:

• a frame with a hydraulic reservoir;
• a hydraulic ram movably mounted to the frame;
• a pump connected to the frame, the pump having a pump piston for pumping hydraulic fluid to move the hydraulic ram relative to the frame, the pump piston being movable relative to the pump along an axis of rotation;
• a motor connected to the frame, the motor having a rotary output shaft;
• and
• a collar connected to the rotary output shaft and having a joint at which the collar is movably joined to the pump piston to move relative to the pump piston along another axis of translation which is substantially orthogonal to the axis of translation of the pump piston, wherein the drive further comprises an eccentric fixedly mounted to the rotary output shaft, the eccentric being engaged to the collar so that when the motor rotates the rotary output shaft the collar is moved in an orbital motion relative to the output shaft.

A hydraulic crimping tool comprising:

• a frame with a hydraulic reservoir;
• a hydraulic ram movably mounted to the frame;
• a pump connected to the frame, the pump having a pump piston for hydraulically moving the hydraulic ram relative to the frame;
• a motor connected to the frame, the motor having a rotary output shaft;
• and
• a transmission connecting the rotary output shaft to the pump piston, the transmission comprising an eccentric fixedly mounted onto the rotary output shaft and a collar rotatably mounted onto the eccentric to rotate relative to the eccentric, the collar being movably joined to the pump piston, wherein the collar has a clevis, the pump piston being pinned to the collar in the clevis.