South Bend Tools
For Machines Mfd. Since 12/21
Model SB1007
-39-
O P E R A T I O N
Aligning Cutting Tool with Spindle
Centerline
For most operations, the cutting tool tip should
be aligned vertically with the spindle centerline,
as illustrated in Figure 47.
Figure
Figure 47. Tip of cutting tool aligned with spindle
. Tip of cutting tool aligned with spindle
centerline (viewed from tailstock).
centerline (viewed from tailstock).
Cutting
Tool
Spindle
Center
Line
There are a number of ways to check and align
the cutting tool to the spindle centerline. If
necessary, you can raise the cutting tool by
placing steel shims underneath it. The shims
should be as long and as wide as the cutting tool
to properly support it.
Below are two common methods:
•
Move the tailstock center over the cross slide
and use a fine ruler to measure the distance
from the surface of the cross slide to the tip
of the center. Adjust the cutting tool height
so it is the same distance above the cross
slide as the tailstock center.
• Make a facing cut on a piece of round bar
stock. If tool is above or below spindle
centerline, a nub will be left in center of
workpiece. Adjust height of tool, then repeat
facing cut to check adjustment. Repeat as
necessary until center of workpiece face is
smooth.
Tools Needed
Qty
Hex Wrench 10mm ...............................................1
Steel Shims ............................................ As Needed
Cutting Tool ...........................................................1
Fine Ruler ..............................................................1
Tailstock Center ....................................................1
To align cutting tool with tailstock center:
1.
Mount cutting tool in tool post, then secure
post so tool faces tailstock.
2.
Install a center in tailstock, and position
center tip near cutting tool tip.
3.
Lock tailstock and quill in place.
4.
Adjust height of cutting tool so that tool tip
is aligned vertically and horizontally with
center tip, as shown in Figure 48.
Cutting
Tool
Tailstock
Center
(Top View)
Cutting
Tool
Tailstock
Center
(Side View)
Figure
Figure 48. Cutting tool tip aligned with tailstock
. Cutting tool tip aligned with tailstock
center.
center.