A fluid-operated gripping apparatus for holding a workpiece having a curved sidewall in a working orientation, and associated methods for gripping and holding a workpiece, are provided. Three fluid-operated actuators, each including an actuator rod and a moveable piston arranged within a cylinder, are equally spaced around a perimeter of a workpiece and receive fluid from a single pressurized fluid source. A fluid (e.g., hydraulic or pneumatic) circuit causes the actuators to extend during a closing stroke of the gripping apparatus according to the force equalization principle. Each actuator includes an end effector pivotally coupled with an actuator rod and configured to contact a surface of the workpiece at exactly two points. A backstop configured to contact an end face of the workpiece is coupled with a rotational joint.

A fluid-operated gripping apparatus for holding a workpiece having a curved sidewall in a working orientation, and associated methods for gripping and holding a workpiece, are provided. Three fluid-operated actuators, each including an actuator rod and a moveable piston arranged within a cylinder, are equally spaced around a perimeter of a workpiece and receive fluid from a single pressurized fluid source. A fluid (e.g., hydraulic or pneumatic) circuit causes the actuators to extend during a closing stroke of the gripping apparatus according to the force equalization principle. Each actuator includes an end effector pivotally coupled with an actuator rod and configured to contact a surface of the workpiece at exactly two points. A backstop configured to contact an end face of the workpiece is coupled with a rotational joint.

This disclosure generally pertains to various accessories for use with bar clamps to enhance the capabilities and functionality of the bar clamps. The accessories described in detail herein include removable and replaceable bar clamp attachments, bar extenders, and stability stands for use with a bar clamp.

An embodiment of a vise may include a clamping structure having a first clamping jaw, a second clamping jaw positioned relative to the first clamping jaw, and a quick adjust jaw guide to maintain the first clamping jaw relative to the second clamping jaw. The quick adjust jaw guide may include a driving element to apply a force to move the first clamping jaw relative to the second clamping jaw, wherein the driving element comprises a release structure to release the applied force to facilitate rapid adjustment of the first clamping jaw relative to the second clamping jaw.

Methods and apparatus for multi-axis determinant assembly adjustment are disclosed. A disclosed example apparatus includes a base mounted to an assembly jig, a support having an interface surface to support a portion of a panel component, a pin to rotationally couple the support to the base, the support to rotate relative to the base about an axis of rotation of the pin, and an adjuster to cause translation of the pin along a slot of the base to move the support.

Methods and apparatus for multi-axis determinant assembly adjustment are disclosed. A disclosed example apparatus includes a base mounted to an assembly jig, a support having an interface surface to support a portion of a panel component, a pin to rotationally couple the support to the base, the support to rotate relative to the base about an axis of rotation of the pin, and an adjuster to cause translation of the pin along a slot of the base to move the support.

A firearm maintenance aid can include a firearm vise and a firearm support device. Firearm vise can include vise jaws, a threaded rod connecting vise jaws together, and jaw pin holes in each jaw, the holes extending from an outer surface of a jaw through to an inner surface of each jaw, wherein the holes in the first jaw align with the holes in the second jaw. Firearm support device can include a clamping portion and a supporting portion. The clamping portion can be clamped between the jaws of the firearm vise, can include two parallel clamping faces, and can define vise pin holes that align with the jaw pin holes. The supporting portion can be located opposite the clamping portion and can include a cylindrical shaft. Vise pins can be received by the jaw pin holes and vise pin holes to fixedly connect the support device to the vise.

A firearm maintenance aid can include a firearm vise and a firearm support device. Firearm vise can include vise jaws, a threaded rod connecting vise jaws together, and jaw pin holes in each jaw, the holes extending from an outer surface of a jaw through to an inner surface of each jaw, wherein the holes in the first jaw align with the holes in the second jaw. Firearm support device can include a clamping portion and a supporting portion. The clamping portion can be clamped between the jaws of the firearm vise, can include two parallel clamping faces, and can define vise pin holes that align with the jaw pin holes. The supporting portion can be located opposite the clamping portion and can include a cylindrical shaft. Vise pins can be received by the jaw pin holes and vise pin holes to fixedly connect the support device to the vise.

This application relates to the technical field of bench vise, and specifically, to a quick multi-functional bench vise, including: bench vise body; The movable vise assembly, which the movable vise assembly is slidably mounted on one side of the top of the bench vise body. By placing V-shaped limit blocks under the jaws of the bench vise body and the movable jaw assembly, users can easily grip round tubes in both horizontal and vertical orientations. This versatility makes the bench tiger pliers suitable for a broader range of applications, offering convenience and efficiency while enhancing its practicality and functionality.

This application relates to the technical field of bench vise, and specifically, to a quick multi-functional bench vise, including: bench vise body; The movable vise assembly, which the movable vise assembly is slidably mounted on one side of the top of the bench vise body. By placing V-shaped limit blocks under the jaws of the bench vise body and the movable jaw assembly, users can easily grip round tubes in both horizontal and vertical orientations. This versatility makes the bench tiger pliers suitable for a broader range of applications, offering convenience and efficiency while enhancing its practicality and functionality.