A machine tool chip removal device including a coupling interface to couple with a rotatable spindle of a machine tool to facilitate rotation of the machine tool chip removal device about an axis at a rotational speed. The chip removal device can also include a main fluid channel with an opening to receive pressurized fluid from the machine tool. The chip removal device can further include a first fluid delivery channel and a second fluid delivery channel to direct fluid in different directions. Each fluid delivery channel can be in fluid communication with the main fluid channel. In addition, the chip removal device can include one or more valves associated with the first and second fluid delivery channels to selectively allow fluid passage from the main fluid channel to the fluid delivery channels. The one or more valves can be actuated by varying fluid pressure and/or rotational speed.

A cutting processing system includes: a spindle mounted with a cutting tool in which a lubrication discharge path is formed along the central axis thereof for rotating the cutting tool; a lance provided inside the spindle in order to supply oil and air to the cutting tool; and a rotary union mounted on the end portion of the spindle for supplying the oil and the air to the lance in a non-mixed state.

A machine tool chip removal device including a coupling interface to couple with a rotatable spindle of a machine tool to facilitate rotation of the machine tool chip removal device about an axis at a rotational speed. The chip removal device can also include a main fluid channel with an opening to receive pressurized fluid from the machine tool. The chip removal device can further include a first fluid delivery channel and a second fluid delivery channel to direct fluid in different directions. Each fluid delivery channel can be in fluid communication with the main fluid channel. In addition, the chip removal device can include one or more valves associated with the first and second fluid delivery channels to selectively allow fluid passage from the main fluid channel to the fluid delivery channels. The one or more valves can be actuated by varying fluid pressure and/or rotational speed.

An indexable milling cutter includes a milling cutter body with a plurality of flutes and a plurality of seating surfaces adapted to mount a cutting insert thereon. The milling cutter body includes a plurality of coolant reservoirs in fluid communication with an adapter. In one aspect, each coolant reservoir lies along a circular intersection line of a coolant manifold. In another aspect, a longitudinal axis of each coolant reservoir is oriented at a non-zero angle, A, with respect to a central, longitudinal axis of the milling cutter. A plurality of coolant ducts in fluid communication with each coolant reservoir, each coolant duct having a smaller cross-sectional area than the coolant reservoir, provide multiple streams of coolant targeted at a plurality of specific critical cutting areas of the cutting insert.

An object of the present invention is to provide a cutting tool that requires the smaller number of parts and can be manufactured at a lower cost. A cutting tool includes: a tool body extending along a central axis and rotatable around the central axis; a cutting insert to be mounted on an insert mounting seat of the tool body; and at least one flow passage provided inside the tool body, the at least one flow passage extending from a back end side toward a front end side of the tool body so as to supply a coolant toward at least a part of the inside of the tool body, a back end side of the at least one flow passage being open at a portion sealed by the tool body and the holding member when the holding member is coupled.

A tool holder is provided for holding one of a tool and workpiece. The tool holder is configured for mounting to a driving member of a machining device. The tool holder includes a tool holder first end including a coupler for coupling the tool holder to the driving member of the machining device. A tool holder second end includes a clamp for releasably holding one of the tool and workpiece. A force sensor is disposed between the clamp and the coupler for sensing force exerted on the one of the tool and workpiece held by the clamp. A linear actuator is disposed between the clamp and the force sensor for linearly moving the one of the tool and workpiece.

A power tool includes a housing, a motor supported within the housing, a handle extending from the housing, a trigger, a spindle, and a fluid delivery system. The handle defines a gap between the handle and the housing, and the trigger, coupled to the housing, is manipulable to energize the motor. The spindle is configured to rotate about a rotation axis in response to torque received from the motor, and the fluid delivery system is configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle, and the valve includes an actuator disposed within the gap.

A motor, to which a rotary joint supporting structure for supporting a rotary joint is attached, turns a spindle. The motor includes a motor housing, a rotary shaft having a hollow shape and penetrating through the motor housing in the axial direction of the spindle, a flinger integrally attached to the rotary shaft outside the motor housing and disposed on the side to which the rotary joint supporting structure is attached, and a peripheral wall provided on the motor housing and projecting in the axial direction of the spindle so as to surround the periphery of the flinger. A plurality of cutouts are formed in the peripheral wall so as to establish communication between the interior and the exterior of the peripheral wall.

A polishing device configured to polish a glass substrate is disclosed, including a polishing wheel fixedly arranged, a cooling pipe, and a movable platform. The polishing wheel has an outer peripheral polishing surface, the glass substrate is placed on the platform and is driven by the platform to move so as to make the outer peripheral polishing surface polish the predetermined polishing surface of the glass substrate; the polishing wheel further has a chamber, and the cooling pipe containing a coolant is disposed in the chamber to decrease a temperature of the chamber and then to make temperatures of the outer peripheral polishing surface and the predetermined polishing surface during polishing is lower than a preset temperature. The disclosure solves the problem of high polishing temperature of the polishing wheel and the glass substrate, thereby enhancing the service life of the polishing wheel and the yield of the glass substrate.

A motor, to which a rotary joint supporting structure is attached, turns a spindle. The motor includes a motor housing, a rotary shaft that is hollow, the flinger that is integrally attached to the rotary shaft outside the motor housing, and a peripheral wall that is provided in the motor housing and projects in the axial direction of a spindle so as to surround the periphery of the flinger. The peripheral wall has cutouts in its side surface so as to establish communication between the interior and exterior of the peripheral wall, to thereby form protrusions projecting in the axial direction of the rotary shaft and an annular top plate portion provided on the distal end of the protrusions.