Soft Jaw Improves Fluid Dynamics


The intelligent jaw design of the SCHUNK UVB-HS soft chuck jaws defines a new class of efficiency in lathe chuck technology. With a combination of overheight and angle cutting, it achieves a whole bundle of efficiency effects during finish machining of workpieces. The unusual jaw height allows for a larger clamping surface on the workpiece, which reduces deformations. Alternatively, the distance between the workpiece to the chuck face can be increased and thus accessibility can be optimized. In comparison to conventional monoblock jaws, SCHUNK UVB-HS reduces the jaw weight by up at least 20% depending on the size. This increases energy efficiency and shortens the processing time, since the lathe chuck can be accelerated and braked faster. At the same time, the reduced jaw centrifugal force allows for higher holding forces on the workpiece, which means increased process reliability.


But it doesn't stop there: Angle cutting minimizes the danger of collisions with the turret and improves the fluid dynamics during machining. At high speeds, SCHUNK UVB-HS chuck jaws lower noise emissions by up to 10 dB, which halves the level of the perceived noise. Since significantly lower cooling lubricant is swirled around the machining area, it is easier to see the machining process. This also lowers the number of aerosols in the air when the machine is opened. The highly efficient monoblock jaws with angle cutting are part of the over 1,200 jaw types in the world’s largest standard program of chuck jaws from SCHUNK. They are available immediately for wedge bar lathe chucks with straight serration in the sizes 200, 250/260 and 315 and can be turned individually to the desired diameter.

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