A screw clamp has two clamping arms, between which a workpiece is clamped. In a clamping process, at least one of the clamping arms is moved by an axial movement distance by a clamping unit such that a clamping force acting against the workpiece is built up, which clamping unit can be manually rotationally actuated about an axis of rotation. The clamping unit is a threaded drive containing a radially outer adjustment sleeve which has an internal screw thread and a radially inner threaded stroke element, the external screw thread of which is in thread engagement with the adjustment sleeve internal screw thread and which can be brought into force-transmitting connection with the movable clamping arm. In the clamping process, the adjustment sleeve is rotationally actuated, whereby the threaded stroke element, together with the clamping arm connected thereto, is moved against the workpiece by the axial movement distance.

The present disclosure is related to a hold-down for a cable tray. The hold-down may be configured for high-wind situations. The hold-down includes a support clamp for clamping onto a support, and a hold-down arm for holding the cable tray on the support.

A universal clamp assembly includes an elongate tubular base, a clamp arm adjustably secured to the tubular base at a threaded connection and an adjustment screw that adjusts the angle of the clamp arm relative to an upper surface of the base. Various workpieces can be secured between the clamping arm and the base. An optional clamping block is provided for cooperating with the clamping arm to secure cylindrical workpieces therebetween. In addition, workpieces can be inserted through the tubular base and secured.

A universal clamp assembly includes an elongate tubular base, a clamp arm adjustably secured to the tubular base at a threaded connection and an adjustment screw that adjusts the angle of the clamp arm relative to an upper surface of the base. Various workpieces can be secured between the clamping arm and the base. An optional clamping block is provided for cooperating with the clamping arm to secure cylindrical workpieces therebetween. In addition, workpieces can be inserted through the tubular base and secured.

A method and apparatus for building a fuselage assembly for an aircraft. A number of fixtures may be drive across a floor to an assembly area to form an assembly fixture. The fuselage assembly may be built on the assembly fixture.

An apparatus for accessing an interior of a fuselage assembly. A tower having a number of platform levels may be driven into a selected tower position within an assembly area. The interior of the fuselage assembly may be accessed using the number of platform levels.

A clamping force visualization device, including a first clamping body (01) for clamping an object; the first clamping body (01) is telescopically assembled on a base (14), an elastic element (110) is provided between the first clamping body (01) and the base (14), and a clamping force scale (11) and a reading indicator (15) are respectively provided on the first clamping body (01) and the base (14); when the first clamping body (01) clamps the object, the elastic element (110) measures a clamping force and the reading indicator (15) points to the clamping force scale (11) for reading, so that the magnitude of the clamping force can be intuitively seen and read during clamping, thereby achieving accurate clamping. A clamp including the clamping force visualization device is also involved.

A clamping force visualization device, including a first clamping body (01) for clamping an object; the first clamping body (01) is telescopically assembled on a base (14), an elastic element (110) is provided between the first clamping body (01) and the base (14), and a clamping force scale (11) and a reading indicator (15) are respectively provided on the first clamping body (01) and the base (14); when the first clamping body (01) clamps the object, the elastic element (110) measures a clamping force and the reading indicator (15) points to the clamping force scale (11) for reading, so that the magnitude of the clamping force can be intuitively seen and read during clamping, thereby achieving accurate clamping. A clamp including the clamping force visualization device is also involved.

A method and apparatus for building a fuselage assembly for an aircraft. A number of fixtures may be drive across a floor to an assembly area to form an assembly fixture. The fuselage assembly may be built on the assembly fixture.

This clamping tool uses optical distance verification with a laser. Clamping tools, like all tools, are known to be operated improperly. Many tools verify process completion by monitoring the pressure within the pneumatic tool. Previous qualifiers use pressure to determine many things. However, it often misses if a small object impedes a full stroke. With the addition of an optical laser sensor, we are able to determine if a clamping tool reaches full stroke.