milling page
Geskovski
Dimitrije eng, bul. ASNOM 52/2-6 91000 SKOPJE, Makedonija
(F.I.R.O.M.)
INFO:This program calculate numbers of four
changing gears which are needful for manufacturing helical gears or helical
flute on milling machine; for each machine we must input set
of changing gears, pitch of working shaft and constant worms
ratio into the program.
in this example: hw=6(mm)-
pitch of working shaft;
k=40 -
worms ratio
change gears set:
2x24,28,30,32,39,40,44,2x48,52,56,60,64,68,72,76,93,96,100,127
type 0 for gear 1 for helical flute.. 0
input
1 for metric, -1 for DP ...-1
input gear DP(1/inch) =8
input gear teeth
number z=27
input angle of slope b(degres)= 22
axsial pitch
s(inch)=28.30403
input maximal tolerance of axial pitch
h(inch)=.015
*minimal possible pitch .4285448(inch) for
gear set
*maximal possible pitch 208.333(inch)......
necessary
pitch(inch)
A B
C
D
possible
pitch
28.30(inch)
76 44 52
30
28.29= (40*6/25.4)* 76*52/(44*30)
type 0 for exit, 1 for Repeat ....0
axial pitch tolerance h(inch)=.15
type
0 for EXIT, 1 for tooth tolerance ....1
input gear with B(inch)=
1.25
Circular tolerance of tooth side ds(inch)=3.081778E-04
type 0 for
EXIT 1 for Repeat..0
................................
*COMMENTS:
this
value is calculated for worm ratio 40:1, axial pitch of
work shaft h=6(mm)
and changing gears
set:
2x24,28,30,32,39,40,44,2x48,52,56,60,64,68,72,76,93,96,100,127
if we got messige we must increase axial pitch
tolerance or eventualy
use another (biger) changing gears
set;
Last updated Sunday, August 23, 1998 9:21:27 AM
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