Civil Engineering Reference
In-Depth Information
Fig. 7.16. Plastic set squares are very cheap and very accurate.
WORK STOPS
Vice stops
There are many ways to fit a work stop to a machine vice. We have already
discussed fitting two vices to the milling machine and using a cylindrical
square as an end stop. Another simple method is to put a magnet onto the
vice jaw. This makes quite a good stop although steel swarf has a tendency
to stick to the magnet. We could also drill and tap the vice's side and screw a
block onto it.
Holding a round bar
A useful method I have used in the past for round bars is to mill a groove all
the way along the fixed jaw of the vice to take the round bar. Then drill and tap
a small hole in the top of the fixed vice jaw and use a clamp to clamp a bit of
round bar into the end of the groove. Then you can put the round workpiece
in the groove and slide it up to the stop and nip up the vice.
Another variation of this method is to put a dowel pin in the fixed jaw and
use this as a fixed stop.
Fig. 7.17 Clamp a stop to the machine vice for production work. Push the work up to
the stop and tighten the vice. The component is held in the same position for the
whole batch.
