A pinning tool is for pinning a tubular structure by pressing a pin through a sidewall of the tubular structure. The pinning tool comprises: a tool body configured for receiving the tubular structure; an actuator mounted on the tool body, the actuator being provided with a piston rod, wherein the actuator is configured for displacing the piston rod in a translational movement; a pin adaptor releasably coupled to the piston rod of the actuator and being configured for receiving and releasably holding the pin to be pressed through and remain in the sidewall of the tubular structure, and a reaction member for fixing a relative position between the tool body and the tubular structure during pinning, wherein the translational movement of the piston rod causes displacement of the pin adaptor, thereby pressing, in operational use, the pin through the sidewall of the tubular structure.

A retaining device for a dental workpiece includes a retaining ring for receiving the dental workpiece, and a clamping device for clamping the dental workpiece on the retaining ring. The clamping device has a bearing surface for the dental workpiece, and the bearing surface is mounted or formed on the retaining ring and protrudes radially in the direction of the central axis. At least one clamping element is mounted movably on the retaining ring, and in a clamping position, the dental workpiece can be clamped between the clamping element and the bearing surface. The retaining ring has an inner ring element, on which the bearing surface is mounted or formed and on which the clamping element is movably mounted, an outer ring element, and a fixing device for releasably fixing the inner ring element to the outer ring element.

A retaining device for a dental workpiece includes a retaining ring for receiving the dental workpiece, and a clamping device for clamping the dental workpiece on the retaining ring. The clamping device has a bearing surface for the dental workpiece, and the bearing surface is mounted or formed on the retaining ring and protrudes radially in the direction of the central axis. At least one clamping element is mounted movably on the retaining ring, and in a clamping position, the dental workpiece can be clamped between the clamping element and the bearing surface. The retaining ring has an inner ring element, on which the bearing surface is mounted or formed and on which the clamping element is movably mounted, an outer ring element, and a fixing device for releasably fixing the inner ring element to the outer ring element.

The disclosure provides a tire centering fixture including: a gear, a first rack, a second rack, a third rack, a shaft sleeve, and a guide cylinder. The first rack, the second rack, and the third rack are engaged with the gear. The gear is disposed around the shaft sleeve; the gear and the shaft sleeve are disposed on the guide cylinder. The guide cylinder includes a central cavity and a base wall. The base wall includes a central hole and a circular recess; a lower end of the shaft sleeve is in movable fit with the circular recess of the base wall, and a lower end face thereof is flush with the bottom surface of the circular recess. A locating base is disposed on the upper end face of the guide cylinder and is fixed on the guide cylinder. The locating base functions as an end cover.

The disclosure provides a tire centering fixture including: a gear, a first rack, a second rack, a third rack, a shaft sleeve, and a guide cylinder. The first rack, the second rack, and the third rack are engaged with the gear. The gear is disposed around the shaft sleeve; the gear and the shaft sleeve are disposed on the guide cylinder. The guide cylinder includes a central cavity and a base wall. The base wall includes a central hole and a circular recess; a lower end of the shaft sleeve is in movable fit with the circular recess of the base wall, and a lower end face thereof is flush with the bottom surface of the circular recess. A locating base is disposed on the upper end face of the guide cylinder and is fixed on the guide cylinder. The locating base functions as an end cover.

A clamping device includes a first, a second clamping member, a first, a second connecting rod, and an elastic member. The first clamping member includes a first side and a second side opposite to each other. The second clamping member includes a third side and a fourth side opposite to each other. The first connecting rod is pivotally disposed between the first side and the third side. The second connecting rod is pivotally disposed between the second side and the fourth side. The elastic member is connected between the third side and the first connecting rod. The elastic member provides a restoring force to make the first connecting rod rotate relative to the second clamping member, to drive the second connecting rod and the first clamping member to rotate, so that a distance between the first and the second clamping member is shortened to clamp an object.

A clamping device includes a first, a second clamping member, a first, a second connecting rod, and an elastic member. The first clamping member includes a first side and a second side opposite to each other. The second clamping member includes a third side and a fourth side opposite to each other. The first connecting rod is pivotally disposed between the first side and the third side. The second connecting rod is pivotally disposed between the second side and the fourth side. The elastic member is connected between the third side and the first connecting rod. The elastic member provides a restoring force to make the first connecting rod rotate relative to the second clamping member, to drive the second connecting rod and the first clamping member to rotate, so that a distance between the first and the second clamping member is shortened to clamp an object.

A material handling device for use in manipulating a tubular substrate includes a C-clamp, which in turn comprises a movable jaw that is pivotally coupled to a fixed jaw. A handle is coupled to and extends from an outer surface of the fixed jaw. An actuator is coupled to the fixed jaw. The actuator is operationally coupled to the movable jaw so that the actuator is positioned firstly to pivot the movable jaw relative to the fixed jaw to position the C-clamp in an open configuration, and, secondly, to pivot the movable jaw relative to the fixed jaw to position the C-clamp in a closed configuration. In the open configuration, the C-clamp is configured to insert a tubular substrate. In the closed configuration, the C-clamp couples to the tubular substrate, positioning a user to grasp the handle to manipulate the tubular substrate.

A fixture for clamping a structural beam during machining is equipped with at least one beam clamp assembly having an elongated clamp arm capable of pivoting as well as linear motion during a clamping operation. The elongated clamp arm is pivotably mounted to a pivot block rotated by an actuator device. The pivot axis of the clamp arm is aligned with but spaced from the axis of rotation of the pivot block.

A fixture for clamping a structural beam during machining is equipped with at least one beam clamp assembly having an elongated clamp arm capable of pivoting as well as linear motion during a clamping operation. The elongated clamp arm is pivotably mounted to a pivot block rotated by an actuator device. The pivot axis of the clamp arm is aligned with but spaced from the axis of rotation of the pivot block.