FAQs ABOUT ZERO-POINT CLAMPS AND THE VEKTEK ZERO-POINT SYSTEM WHAT IS PULL-IN FORCE / HOLDING FORCE? The pull-in force describes the force with which the stud is pulled in and clamped with positive interlocking in the clamping module. The holding force, in contrast, specifies the maximum permissible pull force of the engagement screw. HOW DO THE DIFFERENT PULL-STUDS FUNCTION? The Zero-Point pull-stud (Shown in Red) functions as the primary locating feature, locating the fixture in two axes similar to a standard round pin. The Timing pull-stud (Shown in Blue) serves to locate the third axis similar to a standard diamond pin. The Undersized pull-stud (Shown in green) provides no locating or centering function, so as to not over constrain the fixture, but provides the same clamping force. The Protection pull-stud protects the clamping module from chips, debris, and other contamination while the module is not in use. CAN I INSERT THE PULL-STUD DIRECTLY INTO THE WORKPIECE FOR MACHINE PROCESSING? The high costs for chucking fixtures and workpiece clamping can be effectively saved if the pull-studs are mounted in the workpiece, which is clamped directly using the clamping modules. As a result, a complete 5-sided processing of the workpiece is possible in one chucking. With the different stud sizes (attaching thread M6 to M16), workpieces of different sizes can be clamped. WHAT IS REPEATABILITY? The repeatability specifies the tolerance range within which the recorded reference points on the workpiece after removal and reclamping of the same workpiece. The repeatability, also called repetition accuracy, is below 0.005mm.
WHAT COMPONENTS ARE NEEDED FOR A FUNCTIONING ZERO-POINT SYSTEM? (In Most Cases) Clamping Modules Pull Studs Engagement Screws
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