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The difference between normally open and normally closed clamps

Publish Time：

2024-11-20

Clampers consist of a clamper body, actuator, clamping element, and contact element, etc., and are used with rolling linear guideways and linear shafts, etc. They are high-performance functional components with functions such as fixed worktable, precise positioning, vibration prevention, and increased rigidity. The brake type also has an emergency braking function, widely used in Kate HTPM guide slides 。

Working State: Normally open clampers are in the released state when not energized or oiled (the clamper brake block and the guide rail are separated); while normally closed clampers are in the clamped state when not energized or oiled.

Application Scenarios: Normally open clampers have the functions of fixing the worktable, fine positioning, preventing vibration, and improving rigidity; normally closed clampers, in addition to the above functions, also have the effect of emergency braking when the power is off. The clamper is directly mounted on guide rail using bolts, and it is usually recommended to install it between two slides 。

Reaction Mechanism: Normally open clampers need to be energized or oiled before they can clamp the linear guide rail; while normally closed clampers can only release the clamping state after the power supply or oil supply is stopped.

Structure: Normally open clampers usually have springs or other elastic elements to keep them in the released state when not energized or oiled. Normally closed clampers may use electromagnets or other locking mechanisms to achieve clamping function when not energized or oiled, and during guide rail operation, the clamping and releasing actions achieve control of Kate HTPM linear guide rail 、 Kate HTPM linear guide locking and releasing, thus controlling slides the guide rail movement and fixation.

In summary, normally open and normally closed clampers have significant differences in working state, application scenarios, and reaction mechanisms, but many products do not have clampers, such as THK linear guide rails, Taiwan TBI linear guide rails etc.

 

 

Clamping, status, oil supply, air supply, guide rail, function, linear guide rail, normally open, clamping

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