Manually Actuated Clamping Devices Ease Tool Changes

The SVP-Mini and SVP-RM manually actuated clamping devices from Schunk are run on factory-defined set pressure.

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The SVP-Mini and SVP-RM manually actuated clamping devices from Schunk are run on factory-defined set pressure. According to the company, this feature saves time and energy, reduces setup costs, and eliminates operating errors. The clamping devices can be fastened vertically or horizontally at a workstation, or used directly on Tribos polygonal toolholders at the machine spindle for micro- and high-speed cutting. Because of the firmly integrated expansion sleeve, no reduction inserts are necessary and tool change is simplified, the company says.

With runout and repeat accuracy of less than 0.003 mm at an overhang of 2.5×D and a balancing grade of G 2.5 at 25,000 rpm, the Tribos polygonal clamping devices are suitable for a range of requirements. The toolholders have polygon-shaped holes for the tool rather than round mounting holes. As defined pressure is actuated from the outside, the mounting hole deforms to a cylindrical shape and the tool can be inserted into the toolholder. When the pressure is reduced, the internal diameter moves back to its initial polygonal shape because of the elasticity of the material, and the tool is clamped by force-fit due to the internal stress of the steel.

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