SINO SDS2MS, Руководство по эксплуатации

Страница: 51 / 75

F. PCD Circle Equally Dividing Holes
43
Circular arc equally Dividing Function(PCD Function)
This function may be used to divide a circular arc equally, for example in the
processing of drilling holes distributed uniformly
on a flange. After selecting this function, the
message window will prompt for various parameters
to be defined for the operator.
The following are parameter to be defined.
1. The position of the circle center.
The position of the circle center (CT POS) means
the position of the circle center with respect to the
center of the tool just after tool setting and clearing,
such as the position of Point O with respect to
Point A in Fig. (A).
2. Diameter(DIA): The Diameter of the circle to
be divided equally.
3. The number of holes(NUMBER):
The number of holes equally dividing the circle.
For the example shown in Fig. (B), 5 points from
point 1 to Point 5 must used to divide the arc from 0°
to 180° into 4 equal sections. So, 9 points must be used to divide the whole circle
into 8 equal sections, and Point 9 will coincide with Point 1. As shown in the Fig.,
in order to drill 8 hole on the circle into 8 sections, the number of point to be
entered should be 9.
4. The start angle (ST ANG): The angle of the start point of the circular arc
to be divide equally.
5. The end angle (ED ANG): The angle of the end point of the circular to be
divided equally.
Note: For the definition of the start angle (ST ANG) and end angle (ED
ANG), refer to the section “To recognize the start and end angle of a circular arc”.
Tale the processing of the circular working-piece in Fig. (c) as example:
1) At first, find out the center position of the working piece and finish tool setting
reset.
A
o
(A)
(B)
(C)
φ
20
0° 180°
1
2
3
4
5
6
7
8
9
300°
φ
1 0 0