Clamping glossary
2+2 self centering-compensating clamping: Work pieces need to be centered when clamping. When using 3 jaw chucks,this is carried out via a mechanical synchronizing of the 3 jaws to one common center. A self centering 4 jaw chuck which is used for different work piece geometries is creating 2 separate centers via the 2 opposed jaw sets. The mechanical synchronizing is causing a redundant positioning, which affects the clamping negatively. The Centco4 with its 2+2 self centering-compensating clamping centers the work piece with 2 independent axes. The self centering 2 axes work independent from each other, and thus can reach one common center. This works with any work piece geometry or tolerance. The grip force is only built up, after both jaw axes have reached their common center. This guaranties a very sensitive and high accurate clamping at any grip force and best machining results.
Actuation by central piston: In the Centco4 2+2 self centering- compensating chuck the 2 self centering axes are operated via 1 common central actuating piston. This allows the use of a standard single piston cylinder. Compared to chucks with double piston drive, is saves the use of an expensive double piston cylinder, the additional hydraulic valves and the additional M-codes. Centrifugal compensation: The rotation of a chuck results in centri- fugal forces that act onto the master jaws and the top jaws. It reduces the static grip force, and thus reduces the dynamic chip removal. The centrifugal force system of the Centco4 reduces this effect, and thus improves the dynamic chip removal, the safety and the roundness of the work pieces. Direct pressure lubrication system: In a pressure lubrication sys- tem all loaded areas are directly lubricated via direct channels. Used lubricant is directly replaced by new lubricant. Compared to open lubrica- tion systems it reduced the amount of lubricant needed, increases the lubrication intervals and avoids tribo corrosion
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Direct pressure lubrication system
Large passage, full use of the machine spindle
SMW-AUTOBLOK 129
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