LATHE OPERATIONS - OD1645 - LESSON 1/TASK 1
this guide bar, the tool follows along a line that is parallel to the guide
bar and hence at an angle to the workpiece axis corresponding to the desired
taper.
h. Toolpost Grinding Machine. The toolpost grinding machine (figure 23) is
a machine tool attachment specially designed for cylindrical grinding
operations on the lathe. It consists primarily of a 1/4 or 1/3 horsepower
electric motor and a wheel spindle connected by means of pulleys and a belt.
The machine fastens to the compound rest of the lathe with a T-slot bolt
which fits into the T-slot of the compound rest in the same manner as the
lathe toolpost.
The toolpost grinding machine mounts grinding abrasive
wheels ranging from 1/4 to 3 or 4 inches in diameter for internal and
external grinding operations. A more detailed description of the toolpost
grinding machine will be given in task 2, paragraph 2, beginning on page 77.
FIGURE 23.
TOOLPOST GRINDING MACHINE.
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