Page 5 - Industrial_EN

APPLICATION CLAMPING SYSTEMS

Stable clamping force when fixing a workpiece enables precise and safe machin-
ing. High pressure accuracy enables a uniform clamping and prevents vibrations
and displacements in the vice. In the event of a power failure, the existing pres-
sure protection system maintains the clamping force, thus preventing possible
accidents.

FUNCTION
For clamping systems in machine tools, proportional pres-
sure reducing valves are typically used to adapt the clamping
pressure to the material to be machined. The pressure can be
relayed to the control system via the machine programming
and can be continuously adjusted on the clamping system.
The amplifier electronics can either be integrated directly on
the valve or with the machine control. By using low-leakage
valves, an energy-efficient and stable clamping force with a
high power density is achieved. In addition, the repeatability
leads to high process reliability, significantly improving the
quality of the machine tool.

COMPONENTS
Proportional pressure reducing valves of various sizes and
power ranges controlled by amplifier electronics form the
basis for the adjustment of the clamping pressure. The pres-
sure reducing valve of type MDPPM16 is used for rather short
strokes, while the valve with type designation MPPPM22 is
used for longer strokes or where short positioning times are
required. As an amplifier, either the compact PD2 electronics
or a DSV with its multitude of functions and features can be
used. The holding function is ideally implemented using a
combination of poppet valves and pressure reducing valves.
The additional poppet valve is responsible for maintaining the
holding function in the case of a sudden loss of power and
thus contributes to the operational safety of a machine tool.

SPECIALITIES
• Valves for special fluids
• Customer-specific valves and system solutions
• Valves with integrated and parameterised electronics
• Very low leakage values for pressure control valves, < 50 ml/min

WANDFLUH INDUSTRIAL | APPLICATION | CLAMPING SYSTEMS | PAGE 3