As an integral part of the OK-VISE Fixturing Concept, hydraulic actuators can be used to build truly modular fixtures.

Hydraulic clamping can used in combination with:

– Automated or manual workpiece loading
– Vertical or horizontal machining centers and 5-axis machines
– A continuous pressure source or a hydraulic connection that is uncoupled after loading

Hydraulic pressure (p) is first converted to downwards force and using the wedge clamp clamping force (F) is generated in two directions. Just like in manual clamping, a stopper is needed on both sides of the clamp.

The simplest way of creating a hydraulic fixture is to use a hydraulic actuator in single acting installation. In some applications double acting installation may be needed. In that case the push force is higher than the pull force.

Compared to manual clamping, a system using hydraulic clamping has a consistent clamping force on the workpiece, clamping is faster and enables automated (“robotic”) loading of workpieces.

Compared to other hydraulic systems on the market, the OK-VISE module is based on the world-renowned wedge clamp has a wedge design that prevents the compression of hydraulic oil preventing vibration creates clamping force with a pull stroke has a return stroke performed by a spring or hydraulics uses a HA-Series actuator designed for 350 bar pressure, which results in compact size

OK-VISE low-profile clamps come in four different sizes (A, B, D, F) for metric bolts (M5, M8, M12, M16), while the D-Series Inch Model is made for a half-inch bolt.

When a manually operated fixture is designed in the proper way, OK-VISE hydraulic modules can also be installed afterwards in a simple manner. This is the easiest way to enter the world of automated clamping!