A power operated trimming tool, such as a hand-held, power operated rotary knife, configured for coupling to an end-of-arm tool connector of a robotic arm. The power operated trimming tool includes: a head assembly and a handle assembly extending the frame body along a handle assembly longitudinal axis. The head assembly including a frame body configured for coupling to the robotic arm tool connector. The handle assembly including: a central core including a threaded exterior section and a distal interface portion engaging a proximal interface portion of the frame body to attach the handle assembly to the frame body; a connector engagement member including a distal portion contacting the tool connector and a proximal portion including a threaded interior section engaging the central core threaded exterior section, and a driver assembly retainer member including a distal portion including a threaded interior section engaging the central core threaded exterior section.

A cam mechanism bridging a split through a mounting section of a split blade housing of a power operated rotary knife for moving the split blade housing between the first, blade supporting position and the second blade changing position. The cam mechanism includes a cam plate including an opening and a cam member supported for rotation by the cam plate. The cam member includes first and second surfaces spaced apart by a side wall, the cam member first surface including first and second cam pins extending from the first surface. The cam member second surface includes a boss extending from the second surface. The boss of the cam member being received in the cam plate opening. The side wall of the cam member is symmetric with respect to a diagonal plane intersecting the first and second cam pins and extending substantially parallel to the cam member axis of rotation.

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface.

A power operated rotary knife assembly including a power operated rotary knife having an annular rotary knife blade, a trim guide, and a drive mechanism for driving the rotary knife blade about an axis of rotation. The assembly also includes a portable power unit, a vacuum assembly and a flexible shaft drive transmission coupled between the power operated rotary knife and the portable power unit. The portable power unit includes a drive motor assembly providing a rotational power source which is operatively coupled to the drive mechanism through the flexible drive transmission to rotate the rotary knife blade. The portable power unit also includes a blower assembly providing vacuum pressure at an inlet duct side, the vacuum assembly being in fluid communication with the inlet duct side to generate a vacuum pressure condition in a region of a cutting opening defined by the rotary knife blade and the trim guide.

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface.

A blade housing assembly for a power operated rotary knife including a split blade housing and a cam mechanism for changing a blade housing diameter between blade supporting and blade changing positions. The split blade housing includes an annular blade support section, a mounting section and a split extending through the mounting section and an inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall. The split includes a radial split section and an angled split section adjacent the inner wall. The mounting section includes first and second body portions on opposite sides of the split. The cam mechanism includes a cam plate bridging the first and second body portions and a cam member rotatably supported by the cam plate. The cam member is rotatable between closed and open positions to change the blade housing diameter.

An electric utility knife having a blade which can facilitate manual precision cutting, at a singular consistent speed or varying speeds, without requiring the user to exert extreme or substantial manual pressure to cut through a material. The blade can be configured as a vibrating/oscillating/rotating blade to perform a majority of the cutting tasks. The user may simply guide the blade and exert minimal manual pressure on the knife. This can reduce the potential for injury and other repetitive motion stress injuries to a user. This can also facilitate greater cutting precision and can reduce cutting time.

A system for controlling operation of a power tool. The system includes a handpiece having a power tool, a radio frequency identification (RFID) tag, and a wireless transceiver. The system also includes a power pack having an electric motor driving the power tool. The power pack also includes a wireless transceiver, an RFID reader, and non-transitory computer-readable storage media having computer-executable instructions for pairing the handpiece to the power pack. When executed by at least one processor, the computer-executable instructions cause the at least one processor to: interrogate the RFID tag with the RFID reader; receive an RFID signal from the RFID tag including identifying information for the handpiece; store the unique identifying information for the handpiece at the power pack; and, based on receipt of the unique identifying information, complete wireless pairing of the handpiece to the power pack.

A vacuum rotary knife is fluidly connectable to a vacuum source conduit. The rotary knife includes an annular blade and a knife head. The knife head supports the blade for rotation about a rotational axis. The knife head presents a vacuum port fluidly connectable to the conduit. The vacuum port is spaced from the blade such that the knife head defines a suction pathway extending between the blade and the vacuum port.