Measuring Clamping Force

One of the original and most commonly used method of attaching parts together is by means of a threaded fastener however the threaded joint and its fastening is a complicated matter.

Measuring clamping force.

This is can be dependent on a number of factors but is largely a function of the preload force the force exerted in compressing the bolt and the tension force the force exerted in pulling the bolt apart. The holding force of clamping elements is relevant for both safety and quality. The two most common methods of applying preload are torque control and turn control. Clamping force measuring gauges for pallets are intended to quickly measure the holding force of individual clamping heads.

How to measure bolt fastening and force clamp. A bolt s clamping force called preload is generated as the bolt stretches during tightening. Factories production lines manufacturing plants all use a wide assortment of fastener and assembly systems. The functionality of a breadboard prototype force measuring clamp was tested in a laboratory by use of the combination of certified weights a load washer a.

In torque control a specified torque is placed on the fastener typically with a torque wrench. Operation of the force measuring clamp is easy. This fastener bolt torque calculator will estimate the unknown torque diameter axial force applied and coefficient of turning friction for the given conditions. Since earbuds and in ear headphones aren t held in place by the tightness of a frame we only measure the clamping force of over ear and on ear headphones.

Pallet clamping adapters are per application based and are fitted according to the specifications of the customer s pallet system. Advantages of using the fms. First we place the headphones on a wooden stand with two digital scales secured to each side. Using torque to measure clamp force an inconvenient truth the traditional method for tightening fasteners is to turn the bolt head or nut using a torque wrench.

Monitoring of clamping force during machine set up monitoring of clamping force during. While the tool may be very accurate measuring torque only measures how difficult it is to turn the bolt. If clamping force falls below this threshold an alarm signal is generated. The operator can set a threshold clamping force.

The clamping force on a bolt is defined as the compressive force a fastener exerts on a joint.