application guide gear grinding · · when grinding ring gears, the oscillation causes an...
TRANSCRIPT
![Page 1: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/1.jpg)
Application Guide
Gear Grinding
![Page 2: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/2.jpg)
Gear grinding. On the highest level.
As a machine element, the gear wheel is an elementary component of almost all modern machines.
This “wheel equipped with teeth evenly distributed along the circumference” is primarily installed in all types of gearboxes and is needed to make transfers between two rotations or between one rotation and a linear movement (pairing of a gear wheel with a rack). Gear drives represent the largest group amongst gear- boxes. They are positive-locking and are consequently slip-free.
Gear grinding requires high precision throughout the process, and it is important to use the right grinding wheel for the application. The selection of abrasive material and wheel configuration depends on the base alloy, tooth geometry, and size of the production run, among other factors. 3M’s recently expanded abrasives portfolio can help you meet the growing demand for tighter dimensional tolerances and shorter production schedules, even with difficult- to-grind materials.
Our products and services• Competent application consultants
at your production site• Technical cooperation in order
to increase productivity• Calculation of the total cost• Grinding seminars
![Page 3: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/3.jpg)
Every solution for every application.
Threaded gear grindingIn threaded gear grinding a number of motions occur simultaneously. The worm grinding wheel rotates on its axis while mesh ing with the gear workpiece which is rotating on its axis. The radial infeed to engage the gear being ground with the wheel is in the x direc tion. The infeed across the thickness of the gear is up and down in the z direction while the shift travel moves the gear across the full width of the worm wheel in the y direc-tion.
Bevel gear grindingIn bevel gear machining one distinguishes between two types of grinding:
• Generation grinding (discontinuous)
Generation grinding in bevel gear machining is a dis-continuous grinding process, machining is done tooth by tooth. The generating movement of grinding wheel
![Page 4: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/4.jpg)
and workpiece is coupled. Infeed is done through the grinding wheel before entering the flank. During generation grinding all axes are moved, however, the grinding wheel is not infed in the sense of grinding stock.
• Plunge grinding
Plunge grinding is a discontinuous grinding process, machining is also performed tooth by tooth. Both tooth flanks are machined simultaneously. There is a surface contact between tooth flank and grinding wheel. Due to the plunge movement of the grinding wheel in axis direction, the grit path runs in parallel to the tooth base and the surface structure runs in tooth width direction. Grinding grooves running in parallel to the tooth base emerge. The grinding direction is from ring gear toe at the inner diameter to ring gear heel at the outer diameter, or vice versa. Only ring gears can be produced by means of plunge grinding. Pinions cannot be ground with this process due to their geometry.
· Additional oscillating movement besides main rotation of the grinding wheel
· Grinding spindle is positioned in eccentric bushing, separately driven
· Eccentric value between 0.1 mm and 0.3 mm· Eccentric speed approx. 200 – 500/min
slower than rotational speed of the grinding wheel (value approx. 2,000/min)
· Improved surface in pinion grinding
Grinding wheel
Cutting travel
Infeed travel
Eccentric travel
Eccentric spindle axisGrinding spindle axis
Working wheel
![Page 5: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/5.jpg)
· When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption
Single rib gear grindingGear profile grinding is a discontinuous grind ing process. Contrary to generation grinding, in profile grinding gap by gap is machined. The grinding wheel profile is absolutely identical with the finished gear profile. Compared to generation grinding, where the profile is “produced” by the generating movement, in profile grinding the profile is generated by the profile form that is integrated in the grinding wheel. Thus a higher profile accuracy can be achieved compared to generation grinding.
![Page 6: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/6.jpg)
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![Page 7: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/7.jpg)
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ore
3M
™ C
ubitr
on™
II la
unch
> 2.
03M
™ C
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on™
II
Vitr
ified
Grin
ding
W
heel
92V
G
3M™
Pre
cisi
on-
Shap
ed G
rain
91D
A8
0/8
0 F
15V
PH6
01W
• id
eal f
or K
linge
lnbe
rg/H
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r rap
id
serie
s
> 2.
03M
™ C
ubitr
on™
II
Vitr
ified
Grin
ding
W
heel
92V
J
3M™
Pre
cisi
on-
Shap
ed G
rain
93D
A8
0/8
0 F
15V
PH6
01W
• hi
gh m
ater
ial r
emov
al ra
te•
high
per
form
ance
in V
w.
• us
able
for m
achi
nes
with
low
spi
ndle
po
wer
> 2.
03M
™ C
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on™
II
Vitr
ified
Grin
ding
W
heel
93V
L
3M™
Pre
cisi
on-
Shap
ed G
rain
99D
A54
/80
F15
VPL
F90
1W
• hi
ghes
t pro
duct
ivity
• hi
ghes
t mat
eria
l rem
oval
rate
• m
axim
um V
w
• lo
wes
t bur
n ris
c
Beve
l G
ear
Grin
ding
light
veh
icle
gea
rs,
indu
stria
l gea
rs,
truc
k ge
ars,
ae
rosp
ace
gear
pa
rts
shaf
t pin
ion,
rin
g ge
ar
3M™
Vitr
ified
G
rindi
ng W
heel
92V
D3M
™ C
eram
ic
Gra
in
93A
80
F15
VP6
01W
• un
iver
sal s
peci
ficat
ion
for p
lung
e an
d ge
nera
ting
grin
ding
• hi
gh m
ater
ial r
emov
al ra
te•
high
pro
duct
ivity
· Klin
geln
berg
· G
leas
on
3M™
Vitr
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G
rindi
ng W
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92V
D3M
™ C
eram
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Gra
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A8
0 H
12V
P60
1
• un
iver
sal s
peci
ficat
ion
for a
utom
otiv
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plic
atio
ns•
high
mat
eria
l rem
oval
rate
• hi
gh p
rodu
ctiv
ity
3M™
Vitr
ified
G
rindi
ng W
heel
92V
J3M
™ P
reci
sion
- Sh
aped
Gra
in93
DA
80
/80
H12
VP6
01
• hi
ghes
t pro
duct
ivity
for a
utom
otiv
e ge
ars
• hi
ghes
t mat
eria
l rem
oval
rate
by
st
rong
ly re
duce
d dr
essi
ng in
feed
indu
stria
l gea
rs,
truc
k ge
ars,
ae
ro sp
ace
gear
co
mpo
nent
s
3M™
Vitr
ified
G
rindi
ng W
heel
93V
L3M
™ P
reci
sion
- Sh
aped
Gra
in99
DA
80
/80
H12
VP9
01
• hi
ghes
t pro
duct
ivity
for i
ndus
tria
l gea
rs•
high
est m
ater
ial r
emov
al ra
te b
y st
rong
ly re
duce
d dr
essi
ng in
feed
solid
3M™
Vitr
ified
G
rind i
ng W
heel
93V
L3M
™ P
reci
sion
- Sh
aped
Gra
in99
DA
80
/60
K11
VP9
01
Smal
l dia
met
er g
rindi
ng w
heel
fo
r sol
id m
ater
ial
solid
3M™
Vitr
ified
G
rind i
ng W
heel
93V
L3M
™ P
reci
sion
- Sh
aped
Gra
in99
DA
120
/120
K11
VP9
01
Smal
l dia
met
er g
rindi
ng w
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fo
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id m
ater
ial
![Page 8: Application Guide Gear Grinding · · When grinding ring gears, the oscillation causes an interruption of the grinding contact, which means better cooling, lower power consumption](https://reader033.vdocuments.site/reader033/viewer/2022041705/5e44802953587c56e14a6244/html5/thumbnails/8.jpg)
Typical workpieces
Planet gears
Bevel pinion gears
Cylindrical gears
Please recycle. Printed in Germany.© 3M 09/2015. All rights reserved.
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