The Leverage Clamp

The Leverage Clamp

Leverage Clamp

In workholding, there are few items more important than a clamp.11.leverage clamp When you have a clamp that is easy to use and holds a workpiece securely, it makes the job much easier and faster. This is especially true when you are clamping repetitively and over a long period of time. The 11.leverage clamp is a workhorse that can handle large and heavy clamping loads without the need to constantly readjust. It's built to last and designed to help reduce operator fatigue.

Like all workholding devices, the 11.11.leverage clamp leverage clamp consists of three main elements: the force-applying device, the workpiece, and the fulcrum. All three must be in proper position to achieve stable clamping forces. There are several basic styles of strap clamps, each characterized by different lever arrangements. The most common are first-, second-, and third-class levers. These designations do not indicate their importance or preference levels; rather they show the mechanical action of each lever arrangement.

The fulcrum of the 11.11.leverage clamp leverage clamp is located within a portion of a stabilizing fin. The upper rearward portion of the fin body defines a clamp notch 29 with a lower edge 30, shown in particular in FIG. 9. The stud of the clamping mechanism passes through this notch and extends from structural communication with the fin body to an adjustment nut 47.

Clamping force, also referred to as clamping load, is the amount of force required to close and lock the stud of the fastening device, as shown in FIG.11.leverage clamp 8. This force is transmitted to the workpiece by a compression spring or other type of elastomeric damper, usually a rubber element, and by a screw or other fastener. The force applied by the fastener to the workpiece is a fraction of this clamping load.

To prevent fatigue caused by the angular misalignment of the stud and clamp strap, many clamps have a spherical joint in their center that compensates for limited angular movement between the two elements.11.leverage clamp This eliminates stress on the stud and helps maintain consistent clamping forces. Other forms of angular compensation include spherical washer sets and a cam handle.

The fastening element of a strap clamp is usually a threaded fastener such as a bolt, stud, or pin. These fasteners must be made of a material that can stand up to the high-pressure conditions of workholding applications. Standard hardware items do not stand up to the forces that can be exerted on a fastener in clamping operations, and many of them bend or rupture under these conditions. They should be made of carburized-hardened steel or another hard, durable material.

Other accessories for strap clamps are guide blocks, clamp springs, and finger pins. These aid in positioning the fastening element and reduce wear on the tool body when adjusting the clamp. They can also make it easier to slide a tapped-heel clamp strap between the tool body and a workpiece.

Leverage Clamp