Abstract: A chuck apparatus includes a pair of grip members driven by a piston via a pair of levers, and the levers are rotatably supported by a body via lever shafts. A lever shaft protrudes from the attachment surface of the body to the transport device, and positioning with respect to the transport device is performed by using the protruding portion.

Abstract: A deburring tool includes a body including a cylinder chamber having a tool holder holding hole, and an anti-rotation body holding hole; a tool holder having an anti-rotation groove and disposed in the cylinder chamber to reciprocate in the cylinder chamber; a first elastic body disposed inside the cylinder chamber to urge the tool holder toward a distal end; a cover disposed outside the body to reciprocate between a detaching position and a processing position, the cover including, a pressing surface that covers the anti-rotation body holding hole at the processing position, and a relief portion; and an anti-rotation body accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole.

Abstract: A spindle includes a housing, a bearing housed in the housing, a main shaft rotatably supported by the bearing, a collet chuck extending into a through hole of the main shaft to grip a machining tool and movable in an axial direction of the main shaft, a draw bar connected to the collet chuck, an air inlet above the bearing and through which air is introduced into the housing, an air passage defined in the housing such that the air introduced into the housing through the air inlet flows below the bearing, and an air outlet in the housing and below the bearing and through which the air flowing below the bearing is discharged out of the housing.

Abstract: The invention relates to a milling tool for seating a screw in a dental structure, the screw being provided to be joined to a dental implant, wherein the tool comprises a coupling region provided for coupling to a milling machine and a working region defined by a rod that on one end supports a head having a plurality of cutting blades radially distributed with respect to a longitudinal axis of the coupling region, wherein each cutting blade has a lower cutting surface. Said lower cutting surface has a region with a convex curvature which has a radius that varies between a maximum and a minimum value, the maximum value of the radius being equal to 0.1350*Dh, wherein Dh corresponds to the diameter of the effective area of the milling tool, and the minimum value of the radius complying with the formula: R min = 125 ? 2 · 0.0012 ? Dh 3 .

Abstract: A structure that is mounted to industrial equipment. This structure includes a jig, a first fixing member and a second fixing member, and a grip part. The industrial equipment has an attachment/detachment region for attaching and detaching the jig. The attachment/detachment region has a first space. The jig has a second space. The first fixing member is accomodatable in the first space. The second fixing member is accomodatable in the second space. The second fixing member is configured so that the jig can be attached to and detached from the attachment/detachment region by adjusting the degree of helical engagement of the first and second fixing members. The grip part is provided to at least one of the first fixing member and the second fixing member, and is configured grippable such that, in a state in which the degree of helical engagement has been loosened, the structure can smoothly be moved.

Abstract: A hydro chuck includes a shank portion provided on one end side in a longitudinal direction and having, on a leading end side thereof, a cylindrical chuck portion for gripping a gripped object and an operational portion provided on the other end side in the longitudinal direction and disposed in continuation from the shank portion. The shank portion is fixable by being inserted to a tool mount included in a machine tool. The chuck portion includes a sleeve gripping the gripped object and a fluid pressure chamber formed on an outer circumference side of the sleeve and filled with fluid, the chuck portion being configured such that in association with a rise of a pressure of the fluid inside the fluid pressure chamber, the sleeve is reduced in its diameter to grip the gripped object.

Abstract: An electrostatic chuck includes a base plate and a ceramic dielectric substrate. The ceramic dielectric substrate has a first major surface. The first major surface includes at least a first region and a second region. At least one first gas introduction hole connected to at least one of multiple first grooves. The first grooves include a first boundary groove, and at least one first in-region groove. Multiple second grooves and at least one second gas introduction hole are provided in the second region. The second grooves are include a second boundary groove extending along the first boundary and are provided to be most proximal to the first boundary. A groove end portion-end portion distance between the first boundary groove and the second boundary groove is smaller than a groove end portion-end portion distance between the first boundary groove and the first in-region groove.

Abstract: The invention relates to a milling tool made of cemented carbide having a cylindrical shank (16) and a cutting head (18) for the face milling of workpieces made of a hard-brittle material. The cutting head (18) is configured as an end mill with corner radius or a ball nose end mill having a cutting length (L 2.2). The shank (16) has, up to its chucking end (26), at least one clearance segment (28) having a smaller diameter (d3) than the cutting head (18). The tip of the cutting head (18) is coated or tipped with hard mineral along a length (L2) having a diameter (d1) used for finishing, to which is connected a segment (24), which is used for roughing, having the cutting length (L2.2?L2=L2.1) and a reduced diameter (d4), which is smaller than the diameter (d1) of the cutting length (L2) on the cutting head (18) used for finishing and is greater than the diameter (d3) of the clearance segment (28).

Abstract: A rotary cutting method includes producing a processed product by rotary cutting of a workpiece by a rotary tool. The rotary tool has at least one cutting edge of which both of a first rake angle in a rotation radial direction and a second rake angle in a rotation axis direction are negative. The at least one cutting edge has a slanted face connected with a rake face forming the first and second rake angles. The slanted face is connected with the rake face at a ridge line. The slanted face faces a rotating direction of the rotary tool. An angle of the slanted face to the rotation axis direction is positive.

Abstract: A manufacturing cell comprises at least one workpiece path having a workpiece supply region of a workpiece supply and a workpiece table of a machine tool. The machine tool has at least two machining robots. The workpiece table comprises at least one suction block assembly. The manufacturing cell has a second workpiece path running in a longitudinal direction of the manufacturing cell and parallel to the first workpiece path, with a second workpiece table comprising at least one suction block assembly. In addition, each suction block assembly can be displaced in the longitudinal direction of the manufacturing cell. This increases the output rate of a manufacturing cell and expands its machining capabilities.

Abstract: A chuck assembly for a rotary power tool includes a chuck body rotatable about a central axis. The chuck body has a plurality of slots, each oriented at an oblique angle relative to the central axis. The chuck assembly also includes a plurality of jaws, each movable along a respective one of the slots. The chuck assembly also includes a collar coupled to the plurality of jaws. The collar is selectively engageable with the chuck body such that, when engaged, the plurality of jaws are movable along the plurality of slots in response to rotation of the collar.

Abstract: Tool fitting device for a power tool, in particular a chipping hammer, including—a holding device for receiving and holding a tool shank, a retention element extending at least around a section or sections of the holding device, and a dust protection device for preventing the penetration of dust into the tool fitting device. The dust protection device includes at least one first dust stripping element, at least one fixing bead, and at least one sealing lip element, wherein the sealing lip element is positioned in front of the retention element in the axial direction. Dust protection device for use in a tool fitting device.

Abstract: Some examples provide a vacuum wafer chuck assembly for supporting a wafer. An example chuck assembly comprises a chuck hub and a centering hub disposed within the chuck hub. Chuck arms are mounted to the chuck hub, with each chuck arm extending radially between a proximal end adjacent the chuck hub, and a distal end remote therefrom. At least one vacuum pad is provided for supporting the wafer during a wafer centering or wafer processing operation. A vacuum sensor detects a presence or absence of a vacuum pressure at the vacuum pad during the wafer centering or processing operation, a detection indicative of a presence or absence of the wafer in the chuck assembly, or a presence of a defective wafer.

Abstract: A cutting tool having a main body (4) extending along a longitudinal central axis (9) and a cutting insert (1), which is held on the main body (4) in an axially and/or radially positionally-adjustable manner and can be tensioned by means of a clamping claw (3). The cutting insert (1) is held by a clamping holder (2), which is held in a positionally-adjustable manner on the main body (4), and which can be tensioned on the main body (4) by means of the clamping claw (3) pressing against the cutting insert (1).

Abstract: A method for deep drilling into a panel composed of compressed polyester fibers includes providing a guide system, aligning the guide system with the panel, applying a force to a face of the panel, and drilling a hole into the edge of the panel with the guide system and the drill while the force is applied to the face of the panel. The guide system supports a drill having a drill bit for movement in an axial direction. The force is applied to an area of the panel that is in axial alignment with the guide system.

Abstract: Disclosed are a clutch device, a drill chuck, a power tool, and a bidirectional rotation method of the drill chuck. The clutch device comprises a return elastic member, a transmission assembly and a rotating portion, wherein the transmission assembly comprises at least two oppositely arranged engagement portions; the engagement between the two engagement portions enables a front body and a rear body to rotate synchronously; the rotation of the rotating portion in a first direction enables the return elastic member to be compressed, such that the two engagement portions are disconnected; and the rotation of the rotating portion in a second direction enables the compressed return elastic member to return to an initial position such that the two engagement portions are engaged. The drill chuck comprises a front body, a rear body, clamping jaws and the clutch device; and the power tool comprises a driving shaft and the drill chuck.

Abstract: A control method of controlling a chuck device in a drive system for driving the chuck device, comprising opening or closing fingers by opening a switching valve at a first degree of valve opening to supply the fluid to a first cylinder chamber of the chuck device and to discharge the fluid from a second cylinder chamber of the chuck device so that a piston moves in one direction, and stopping the fingers in an intermediate position between a fully open position and a fully closed position by opening the switching valve at a second degree of valve opening to stop supplying the fluid to the first cylinder chamber and to stop discharging the fluid from the second cylinder chamber when the axial position of the piston reaches a target position set in advance while the fingers are being opened or closed.

Abstract: A processing device with a constant force spindle capable of quickly switching a force control axial direction and a processing method thereof, having a quick-detach unit fixed at a constant force control unit by a first quick-connecting piece, and respectively connecting and moving synchronously with the spindle by a second quick-connecting piece and a third quick-connecting piece, the first quick-connecting piece moves along with a working end of a multi-axial transfer unit, and when combined, a first axial direction that is coaxial with the force control axial direction is defined; alternatively, the first quick-connecting piece moves along with the working end of the multi-axial transfer unit, and when combined, a second axial direction that is coaxial with the force control axial direction is defined, the first axial direction is not parallel to the second axial direction and has an included angle.

Abstract: A tool holder (e.g., shrink fit adapter) with fluid directing passages includes a shank and a fluid/coolant directing structure including one or more nozzles fluidically connected to feeder channels of the shank. The one or more nozzles each include an inner wall and an outer wall configured/shaped to direct fluid/coolant flow both radially inwardly and longitudinally distally and/or to variably modulate fluid/coolant flow around a nozzle outlet of or provided by the nozzle(s) in relation to a longitudinal central axis of the shank.

Abstract: A cutting tool may include a base body, a tip, a sensor, and a connector. The base body may have a shank section and a securing section located at a front end of the shank section. The tip may be secured to the securing section and may have a cutting edge. The sensor may be accommodate inside the shank section. The connector may be located inside the shank section and may be oriented outward of the shank section. The connector may include a recess recessed relative to an outer surface of the shank section, and may also include a terminal exposed within the recess and electrically connected to the sensor.