Civil Engineering Reference
In-Depth Information
Fig. 8.1 Both sides of this metal sheet can be machined at the same setting. This en-
sures the sides are parallel to each other.
Fig. 8.2 Three sides of this component can be milled at one go.
WORKPIECE HOLDERS
Tenons
Tenons are small blocks that fit into the top of a table's T-slots. They should
be a good fit, not loose but not so tight that you have to bang them in. You
may have tenons on the bottom of your vice, dividing head or rotary table.
You can also have loose tenons that fit into the T-slots that you put the work
against to line it up with the table.
If you want, say, a row of holes being drilled to line up with a T-slot or the
edge of the work being machined to hang over a tee slot, you can put a paral-
lel against the edge of the tenons to space the work into the correct position.
If you want to put an angle plate onto the milling machine parallel to the
X axis, put a couple of tenons into the T-slot and push the angle plate up
against the tenons to save clocking up the angle plate. Tenons do not have to
be square; they can be rectangular or even be made from round bar.
T-nuts
T-nutsareusedtoclampthingsdowntothemachinetable.Theyaresocalled
because they resemble an inverted T. They should be a good fit in the table's
