How important are self-centering vises in a workholding system? In our last blog post about DynoLock™ bases, we noted that machinists demand accuracy and repeatability. These demands also extend to the vise, which holds the workpiece. To us, these demands are a no-brainer. Mate workholding works as a system. A highly accurate and repeatable base needs a highly accurate and repeatable self-centering vise for the system to provide best-in-class operation. Enter Mate DynoGrip™ vises, which are engineered to shorten setup time and reduce process variability.
DynoGrip self-centering vises clamp parts to within 15 µm (0.0006”) of perfect center, repeatable to within 10 µm (0.0004”). These superior results are due in part to Mate making the lead screw in-house, using tool steel that’s properly hardened and coated with titanium carbo-nitride. The screw has a fine 1.5 mm pitch and a trapezoidal thread yielding a strong, steady push.
Perhaps the most important feature is that Mate machines both the right and left sides of the lead screw from the same top dead center. This is how we control where the lead screw starts and stops. Mate does the same for the internal thread of the pusher to know the top dead center. Since we control every element of the manufacturing process, we eliminate variability and make it easy to get to the vise to center accurately and repeatably.
DynoGrip self-centering vises also have an anti-lift design to counteract the natural physics of a vise that will cause a part to lift. The pushers and jaws work together to exert a downward force on the workpiece equal to the clamping force. The quick-change jaws also feature a serrated tooth geometry which generates a downward force on the workpiece and a superior “bite” into the workpiece. Combined, all of these features contribute to DynoGrip’s best-in-class accuracy and repeatability. Download our catalog to learn more about DynoGrip vises and DynoLock bases.