The present invention provides a fluidic clamping device (100) comprising a sleeve (110) for clamping and holding a movable part (200). The sleeve (110) comprises a central element (111) having a cross-section in a longitudinal direction of the central element (111), comprising a cavity configured to receive the movable part (200). The fluidic clamping device (100) is characterized in that the sleeve (110) further comprises at least one chamber (112) disposed on an outer periphery of the central element (111) and extending along a longitudinal direction of the central element (111), the at least one chamber (112) configured to containing a fluid, wherein the fluidic clamping device (100) is configured to pressurize an interior of the at least one chamber (112) with a first predetermined fluidic pressure or a second predetermined fluidic pressure, wherein the first predetermined fluidic pressure is lower than the second predetermined fluidic pressure, and wherein the central element (111) is configured to be in frictional contact with the movable part (200) at at least a portion of an inner periphery of the central element (111) and to clamp and hold the movable part (200) in a first state in which the interior of the at least one chamber (112) is pressurized with the first fluidic pressure, and wherein the central element (111) is configured not to be in frictional contact with the movable part (200) at any portion of the inner periphery of the central element (111) in a second state in which the interior of the at least one chamber (112) is pressurized with the second fluidic pressure.

A quick-release tool connecting rod is provided, including: a rod body, a quick-release mechanism and a second sleeve member. The rod body includes an inner space extending in an axial direction and a through hole communicated with the inner space. The quick-release mechanism includes a push rod received within the inner space, a locking member disposed within the through hole and a first sleeve member sleeved to the rod body. The first sleeve member is movable relative to the rod body in the axial direction to drive the push rod to move. The second sleeve member is co-movably sleeved to the first sleeve member, and the first sleeve member is partially embedded within an inner peripheral wall of the second sleeve member. The first sleeve member has a first hardness, and the second sleeve member has a second hardness which is smaller than the first hardness.

A quick-release tool connecting rod is provided, including: a rod body, a quick-release mechanism and a second sleeve member. The rod body includes an inner space extending in an axial direction and a through hole communicated with the inner space. The quick-release mechanism includes a push rod received within the inner space, a locking member disposed within the through hole and a first sleeve member sleeved to the rod body. The first sleeve member is movable relative to the rod body in the axial direction to drive the push rod to move. The second sleeve member is co-movably sleeved to the first sleeve member, and the first sleeve member is partially embedded within an inner peripheral wall of the second sleeve member. The first sleeve member has a first hardness, and the second sleeve member has a second hardness which is smaller than the first hardness.

A fixture for stiffening a thin-walled component comprises linking elements which support respective biasing parts and pressure parts. The biasing parts are arranged to urge the pressure parts to press on a thin-walled component, and the linking elements are rigidly connected to one another to resist a reaction force exerted on the pressure parts by the thin-walled component.

A quick-change connecting rod assembly includes a connecting rod having a front end with a coupling hole. Two diametrically opposed coupling grooves are defined in a polygonal inner periphery of the coupling hole. The connecting rod further includes first and second radial holes respectively receiving first and second positioning balls. A first abutment ring is mounted around the connecting rod and is located between the first and second radial holes. A pressing seat is received in a rear portion of the coupling hole and includes a receptacle receiving a magnet and a pressing portion for pressing against the second positioning ball. A sleeve receives the front end of the connecting rod and includes an inclined face for pressing against the first positioning ball. A rear abutment ring is fixed in the receiving hole and includes a side stop wall for pressing against the second positioning ball.

A torque transfer assembly for a bit holder includes an axial movement limiting subassembly and a rotation limiting subassembly. The axial movement limiting subassembly is configured to retain a drive body of the bit holder in proximity to a driven body of the bit holder. The rotation limiting subassembly is configured to cause torque applied to the drive body to be transferred to the driven body. The rotation limiting subassembly includes a first cam body at a distal end of the drive body and a second cam body at a distal end of the driven body. The first and second cam bodies are configured to transfer a majority of the torque between the drive body and the driven body indirectly via the torque transfer assembly by limiting rotation of the first cam body relative to the second cam body.

Embodiments relate to a power drive adapter tool. The tool includes a drive adapter and a drill bit assembly. The drive adapter includes a body having a first end and a second end, the first end having a drive-receiving aperture configured to receive a drive from a drive tool, and the second end having a bit-receiving aperture configured to receive the drill bit assembly. The drill bit assembly has a drill bit and a connector, the connector having a proximal end and a distal end. The drill bit is permanently connected to the distal end, and the proximal end is configured to insert into the bit-receiving aperture.

A clamping device for clamping an article or workpiece to be balanced includes a clamping apparatus for clamping the article. The clamping apparatus has an adjusting device for adjusting the clamping diameter of a clamping body of the clamping apparatus for clamping the article on a placement surface. The clamping body has a disk-shaped spring element sprung in radial direction with a centrally disposed clearance forming at least one spring element cone. The clamping body also has a clamping element inserted into the clearance and having at least one corresponding clamping element cone. The adjusting device has an actuating device for displacing the clamping element relative to the spring element, for moving the cone surfaces of the clamping element cone and the spring element cone relative to one another and for consequently clamping and/or unclamping the spring element in radial direction by the cone surfaces.

A torque transfer assembly for a bit holder includes an axial movement limiting subassembly and a rotation limiting subassembly. The axial movement limiting subassembly is configured to retain a drive body of the bit holder in proximity to a driven body of the bit holder. The rotation limiting subassembly is configured to cause torque applied to the drive body to be transferred to the driven body. The rotation limiting subassembly includes a first cam body at a distal end of the drive body and a second cam body at a distal end of the driven body. The first and second cam bodies are configured to transfer a majority of the torque between the drive body and the driven body indirectly via the torque transfer assembly by limiting rotation of the first cam body relative to the second cam body.

A torque transfer assembly for a bit holder includes an axial movement limiting subassembly and a rotation limiting subassembly. The axial movement limiting subassembly is configured to retain a drive body of the bit holder in proximity to a driven body of the bit holder. The rotation limiting subassembly is configured to cause torque applied to the drive body to be transferred to the driven body. The rotation limiting subassembly includes a first cam body at a distal end of the drive body and a second cam body at a distal end of the driven body. The first and second cam bodies are configured to transfer a majority of the torque between the drive body and the driven body indirectly via the torque transfer assembly by limiting rotation of the first cam body relative to the second cam body.