What are the benefits of using toggle clamps?
When you pull up the clamping arm, the clamping force will be released so that the workpiece can freely move. Some of the benefits of using a toggle clamp include the following: Makes it easier to resize and reshape workpieces. Lowers the risk of bodily injury.
How does a toggle clamp work?
Toggle clamps are quick-action clamping tools that operate using an over-center locking principle known as a “toggle action.” Utilizing a system of levers and pivots, the clamping handle moves a linkage to its center position and the clamping arm meets the center to hold the fixture or workpiece in a locked position.
What are the types of toggle clamps?
There are six main types of Toggle Clamp including Vertical Toggle Clamps, Horizontal Toggle Clamps, Plunger Toggle Clamps or Push Action Toggle Clamps, Hook Action Toggle Clamps, Plier Action Toggle Clamps and Cam Action Toggle Clamps.
How does a toggle mechanism work?
toggle mechanism, combination of solid, usually metallic links (bars), connected by pin (hinge) joints that are so arranged that a small force applied at one point can create a much larger force at another point.
What is the maximum theoretical mechanical advantage from a toggle clamp?
As a general rule, the mechanical advantage available ranges from 2:1 to 10:1. The holding capacity of toggle clamps is usually determined by actual tests.
When was the toggle clamp invented?
March 29, 1935
MCKENNA TOGGLE CLAMP Filed March 29, 1935 INVENTOR.
How do toggle mechanisms work?
How is toggle clamp force calculated?
The force the clamp may absorb in the closed position with no permanent deformation is called the holding force (Fh). Its amount is specifi c to each toggle clamp and varies according to clamp size and form. Forces are calculated in daN (deca Newton) = 10N (Newton) = 1Kg weight. MVA.
Who invented the toggle clamp?
If you leave woodworkers alone long enough, they’re going to get ideas. Put a few of them together, and the ideas can really get flowing. That’s what happened to Bob Webb. His friend, Paul Terban, was getting frustrated with the toggle clamps he ordered, and he talked to Bob about it at work one day.
Do you apply pressure on panel during toggle clamping?
Vertical Toggle Clamp It is designed with various holding capacities. It can apply a considerable amount of pressure. Every time you pull the handle away from the tool, you can lift the securing bar and place an object under the bar. As the handle moves into vertical alignment, the pressure is applied.
How are toggle clamps measured?
A horizontal toggle clamp has a clamping plate which faces downwards, and pushes down on a workpiece to hold it in place. This type of clamp can be measured by its clamping height, which indicates the distance between the clamping plate in its highest position and the surface of the work bench that it is bolted to.
How do I choose a toggle clamp?
These are usually determined by the space in which the clamp is to be situated and how much manoeuvrability it allows. Levers for manual toggle clamps can be horizontal or vertical, operate with a push or pull linear action, use a rolling cam instead of a pivot, or have a hook instead of a clamping foot.
How much clamping force should be used?
We recommend a 2-to-1 safety factor (2580 lbs). Even though FL (the combined force from all clamps on the left side) equals zero, a small clamping force may be desirable to prevent vibration. Too much clamping force can be as bad as too little. Excess force can cause fixture and machine-table distortion or even damage.
How do toggle latches work?
The toggle latch operating principle is a calibrated system of levers and pivots. Toggle action has an over center lock point; once it reaches over center position latch is securely locked in place. It cannot be moved or unlocked unless a certain amount of force is used to pull the handle and get over the cam.