The present invention provides an improved release mechanism for clamping tools where problems of thread slipping due to worn out thread can be reduced by the structure of a plunger with a small diameter section and the engagement of the thread shaft is made more secure by the cam action on account of the shape of the plunger. A protrusion extends from a push button on a top portion of the half-threaded nut. Threads are formed on an upper portion of the hole for engaging the threaded shaft. The middle portion of the plunger is made to have a section of small diameter allowing the protrusion to be pushed downward in a normal position and allowing the protrusion to rely on the resilient power of the helical spring to push it upward into the small diameter section.

A vise with a sliding head which slides on an elongate body. A diagonal clamping screw passes through a hole in the sliding head and is threaded into a pin inserted in an internal sliding block. The internal sliding block has a toothed pattern which is able to interlock with a toothed pattern fixed to the body underneath the vise slides. The diagonal clamping screw provides force to lock the tooth patterns together and pull the head forward when tightened. A spring provides force to disengage the internal sliding block teeth and fixed teeth on the body when the diagonal clamping screw is loosened.

A vise with a sliding head which slides on an elongate body. A diagonal clamping screw passes through a hole in the sliding head and is threaded into a pin inserted in an internal sliding block. The internal sliding block has a toothed pattern which is able to interlock with a toothed pattern fixed to the body underneath the vise slides. The diagonal clamping screw provides force to lock the tooth patterns together and pull the head forward when tightened. A spring provides force to disengage the internal sliding block teeth and fixed teeth on the body when the diagonal clamping screw is loosened.

A cylinder vice includes a vice jaw, a chain retainer, and a hydraulic assembly. The vice jaw is positioned between side braces and include outer and inner plates. The outer plates include a top edge having a V-shape geometry. The outer plates include a female slide configured to interface with a male slide of the side braces. The inner plates include a top edge having another V-shape geometry. The inner plates include a bottom edge that is configured to interface with a piston. The chain retainer configured to retain a chain end positioned in a slot configuration of the chain retainer and fastened via a dowel. The chain retainer includes a handle on each side of the slot configuration such that each handle is positioned in the notches of the side braces. The hydraulic assembly is configured to actuate the piston against the bottom edge of the inner plates.

A cylinder vice includes a vice jaw, a chain retainer, and a hydraulic assembly. The vice jaw is positioned between side braces and include outer and inner plates. The outer plates include a top edge having a V-shape geometry. The outer plates include a female slide configured to interface with a male slide of the side braces. The inner plates include a top edge having another V-shape geometry. The inner plates include a bottom edge that is configured to interface with a piston. The chain retainer configured to retain a chain end positioned in a slot configuration of the chain retainer and fastened via a dowel. The chain retainer includes a handle on each side of the slot configuration such that each handle is positioned in the notches of the side braces. The hydraulic assembly is configured to actuate the piston against the bottom edge of the inner plates.

An improved floating jaw assembly to a machinist vise assembly capable of holding a plurality of individual workpieces, the vise assembly generally including a base with a way or ways, a fixed jaw mounted on the ways, at least one movable jaw slidably mounted on the ways to move toward and away from the fixed jaw on a longitudinal axis in such a manner that at least one workpiece can be securely held between the fixed jaw and the at least one movable jaw, and a mechanism for moving the movable jaw toward and away from the fixed jaw to clamp and unclamp workpieces. The floating jaw assembly includes at least one floating jaw plate attached to the vise assembly with means for adjustable movement of the floating jaw plate(s) along the longitudinal axis of the vise assembly and for articulated movement of the floating jaw plate(s) in a plane substantially parallel to the base of the vise assembly and about an axis perpendicular to the longitudinal axis of the vise assembly so that the floating jaw plates can, in cooperation with adjoining jaws or plates, adjust to and securely hold workpieces. In addition, the floating jaw assembly includes a means of forcing the at least one floating jaw plate downward and securely against the ways of the vise assembly.

A tooling fixture that provides a compact, multi-station fixture vise is described. The design provides a compact, tooling fixture that is easily assembled into multi-unit arrays for machining of large volumes of workpieces. Variations of design include the ability to hold two separate pieces to be machined by one fixture, to hold a single piece in each fixture and to attach an array of the fixtures to a base for simultaneously machining and array of parts.

Device and methods comprising a clamping device or vise which applies stabilizing force to a workpiece for a machining, operation using an adjustable stock engagement point, the stock engagement point being adjustable by inserting shims or spacers between the stock engagement surface (e.g., a gripper wall and the body of the device).

Device and methods comprising a clamping device or vise which applies stabilizing force to a workpiece for a machining, operation using an adjustable stock engagement point, the stock engagement point being adjustable by inserting shims or spacers between the stock engagement surface (e.g., a gripper wall and the body of the device).

A multi-functional bench vice with a quick-change jaw includes a movable vice body, a fixed vice body, a screw rod, and a handle. The fixed vice body is provided with a fixed jaw. A quick-change assembly and a movable jaw assembly are installed on the movable vice body. The quick-change assembly includes an adjustment rod and a pull rod. The adjustment rod is installed on the movable vice body through an external thread, and is connected to one end of the pull rod through the internal thread. The helical direction of the external thread is opposite to the helical direction of the internal thread. The other end of the pull rod passes through the movable vice body and is clamped on the movable jaw assembly. The movable jaw assembly corresponds to the fixed jaw.