Drilling
A lathe can also be used to drill holes accurately concentric with
the centerline of a cylindrical part.
First, install a drill chuck into the tail stock. Make certain that the
tang on the back of the drill chuck seats properly in the tail
stock.
Move the saddle forward to make room for the tailstock. Move
the tailstock into position, and lock it in place (otherwise it will
slide backward as you try to drill).
Before starting the machine, turn the spindle by hand. You've
just moved the saddle forward, so it could interfere with the
rotation of the lathe chuck.
Always use a centerdrill to start the hole. You should use cutting
fluid with the centerdrill. It has shallow flutes (for added
stiffness) and doesn't cut as easily as a drill bit. Always drill past
the beginning of the taper to create a funnel to guide the bit in.
Take at most one or two drill diameters of material before
backing off, clearing the chips, and applying cutting fluid. If the
drill bit squeaks, apply cutting fluid more often.
The drill chuck can be removed from the tail stock by drawing
back the drill chuck as far as it will easily go, then about a
quarter turn more. A pin will press the chuck out of the ram.
Содержание PM-1127VFI-LB
Страница 1: ...Spartan Robotics Lathe Safety Training Manual...
Страница 5: ......
Страница 7: ...Headstock Controls...
Страница 9: ...Carriage Controls...
Страница 13: ...Tooling Examples...