operating manual cut knurling tool c612
TRANSCRIPT
Hommel+Keller Prรคzisionswerkzeuge GmbH78554 Aldingen
www.hommel-keller.de
Zustellung der Profiltiefe = ๐๐๐๐๐๐๐๐๐๐๐๐๐๐2 (Bei 90ยฐ Flankenwinkel)
Anfahrposition ๐๐ = โ(๐ ๐ ๐๐๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐ ๐๐๐ ๐ ๐๐๐๐๐๐๐๐๐ ๐ ๐๐รผ๐๐๐๐๐๐๐ ๐ )2 โ (๐๐)ยฒ
RW191
Zustellung an Skala = ๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐1 ๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐โ = 0,6 ๐๐๐๐
0,05 ๐๐๐๐ = 12 Teilstriche
( ๐๐2)
Zustellung = 1,0 ๐๐๐๐2 = 0,5 mm
Zustellung an Skala = ๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐1 ๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐โ = 0,5 ๐๐๐๐
0,05 ๐๐๐๐ = 10 Teilstriche
Zustellung an Skala = ๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐1 ๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐๐โ = 0,6 ๐๐๐๐
0,1 ๐๐๐๐ = 6 Teilstriche
2 x AA 1 x BL15ยฐ /1 x BR15ยฐ
RGE30ยฐ RGE45ยฐ
ausgeprรคgtes Profil nicht ausgeprรคgtes Profil
p
1/2p
90ยฐ
1. 2.
BA
A B
L ( 2 : 1 )
F
G
Lca. 1mm
A
ca. 13 Rรคndelbreite gesamte Randelbreite
5.1 5.2 5.3
E
Frรคsrichtung
hintere Schneide "drรผckt"
a
B
D
90ยฐ
C F
C
B
c
Radiusa
D
OPERATING MANUAL
CUT KNURLING TOOL C612
KNUR
LIN
G P
ROFI
LES
AN
D P
ROD
UCTIO
N P
ROC
ESS Please read this operating manual carefully. Correct assembly of the tool will save you set-up time and allow you to achieve optimal results.
Produce a chamfer (30ยฐ โ 45ยฐ) on the workpiece with a minimum width corresponding to half of the pitch of the knurling wheel on the start of the workpiece. The concentricity of the workpiece must be max. 0.03 mm.
For assembling and / or changing the knurling wheels (Fig. 2, pos. 4), fi rst loosen the countersunk screw (Fig. 2, pos. 2) completely and remove the knurling wheel and washer (Fig. 2, pos. 3). Then fi t the knurling wheel and the washer on the bush (Fig. 2, pos. 5) and re-tighten with the screw in the knurl holder (Fig. 2, pos. 1.1).Note: Torque specifi cation in Table 4, chapter 6.Ensure that the bearing surfaces of the knurl holders are free from chips and inspect regularly for damage.
5. Approach of the workpiece and checking the centre heightThe following formula can be used as a rough guideline for the approach position of the tool in X-direction. This depends on the workpiece diameter to be machined and knurling rollers which are used (see Tab. 3 and Fig. 5). With correct adjustment of the centre height, both knurling wheels are simultaneously engaged during the approach of the workpiece. If this is not the case, correct the centre height according to chapter 3, reference 2.
4. Adjustment of the diameterThe position of the knurl holder must be adjusted for adjustment of the workpiece diameter to be machined. For this purpose, loosen the clamping segment (Fig. 1, pos. 8) and turn the index disc (Fig. 1, pos. 6) until the desired diameter matches the index point (Fig. 1, pos. 7). Then, re-tighten the clamping segment.
Series C612
Machining direction
axial
Knurling profiles on the workpiece:
Knurling pro๏ฟฝ le Manufacturing process
RGE left-hand / right-hand knurling,raised points, 30ยฐ
RGE left-hand / right-hand knurling,raised points, 45ยฐ
1. General information
2. Knurling wheel assembly
Table 1: Knurling profi les
Table 2: Manufacturing process
Ordering spare parts:
Please specify the tool number (including shank version) and the corresponding position number (see Figure 1).
APP
LIC
ATIO
N The profi le depth is set approx. 1 mm behind the chamfer of the workpiece in the X direction and corresponds to approximately the half pitch p (with 90ยฐ fl ank angle), (cf. Fig. 8, ref. 1). After reaching the limit depth, the dwell time of the tool should be 3 โ 10 revolutions of the workpiece. Then move in the Z-direction until the desired knurl width is achieved. Disengage the tool while the spindle is rotating.
2. Centre height adjustmentFor adjustment of the centre height, the mark on the shank (M) must be aligned with the marks on the cutting head (Fig. 3).It must be ensured that the appropriate mark is chosen for the relevant shank dimension.For this purpose, loosen the eccentric pins (Fig. 4, pos. 10) inwards and adjust the tool head with the spindle (Fig. 4, pos. 11).If necessary, re-adjust the centre height if both knurling wheels do not turn simultaneously when scratching the workpiece.Note: Variants with a shank measurement of 10/ 12/ 16 have only one eccentric pin! Alternatively, the centre height can be adjusted with the accompanying adjustment gauge (refer to the accompanying supple-mentary information for this purpose).
1. Clamping positionClamp the tool at an angle of 90ยฐ to the workpiece.
3. Clamping the tool headAfter the centre height has been adjusted, clamp the eccentric pin(Fig. 4, pos. 10) outwards (Fig. 4, blue marks).Note: Variants with a shank measurement of 10/ 12/ 16 have only one eccentric pin!
Attention: Eccentric pins must not be lubricated!
Selection of knurling wheels:
Workpiece
Knurling wheel AA
Knurling RGE30ยฐ
Knurling wheel AA
Workpiece
Knurling wheel BR15ยฐ
Knurling RGE45ยฐ
Knurling wheel BL15ยฐ
4. Setting of the pro๏ฟฝ le depth and feed rate in X direction
3. Tool setting
Fig. 3: Setting the centre height
With 90ยฐ fl ank angle
Fig. 4: Clamping the tool head
TOO
L A
DJU
STM
ENT
Fig. 2: Knurling wheel assembly
Setting of the profi le depth = Pitch
The correct profi le depth has been reached when the profi le is knurled completely (Fig. 8, ref. 1). A new setting takes place when the profi le is not com-pletely formed (Fig. 8, ref. 2). Re-adjustment in the profi le is possible, because the knurling wheels catch in the existing profi le. For guideline values for feed rate and cutting speed, please refer to Table 6, chapter 8.If uneven profi le threads are created, a correction can be made by adjusting the centre height (chapter 3, ref. 2).
6. Clearance angle adjustment and checking the knurl impressionWith correct use, the knurl impression is approx. 1/3 of the width of the knurling wheel (Fig. 6, ref. A).The maximum knurl depth should only be a few hundredths. Ensure that the front cut of the knurling wheel immerses in the material. If there is a knurl impression as shown in Figure 6, ref. B, an adjustment of the clearance angle of the knurling wheels must be carried out. For this purpose, loosen the clamping segment (Fig. 1, pos. 8) and turn the index disc (Fig. 1, pos. 6) in the relevant direction as described in chapter 3, reference 4. Then, re-tighten the clamping segment.
7. Beginning of the knurlingThe beginning of the knurling takes place approx. 1 mm after the beginning of the workpiece (Fig. 7, ref. A). Attention: Do not start knurling in the middle/ in front of the compo-nent! (Fig. 7, ref. B)
5. Checking the profile depth
wheel ร Variable c
14.5 5.6
21.5 5.1
Table 3: Variable c for approach position
Fig. 7: Scratching the workpiece
Fig. 8: Different profi le pattern
Fig. 6: Check of the knurl impression
Fig. 5: Approach position a
Formed profi le Unformed profi le
Art. no. 09PRO0104/07/2021
Subject to correction and technical changes. ยฉ All content, including photos and graphics, is protected by copyright. Copying or reproduction of the content in any form is prohibited without the permission of the proprietor Hommel+Keller Prรคzisionswerkzeuge GmbH. All rights reserved.
IMPO
RTA
NT
The countersunk screw (Fig. 1, pos. 2), bush (Fig. 1, pos. 5), washer (Fig. 1, pos. 3) and knurling wheels (Fig. 1, pos. 4) should be replaced after an appropriate number of cycles, no later than after appearance of considerable wear or deviating process parameters. An adequate fl ow of coolant or cutting oil is recommended! For this purpose, observe the correct use of the scooling unit and the instructions of the accompanying supplementary information.Note: A material distortion of min. 0.03 mm and max. 0.1 mm can arise during the cut knurling.If the screws (Fig. 1, pos. 2) loosen during the process, we recommend using LOCTITEยฎ high-strength screw adhesive.Ensure that the bearing surfaces of the knurl holders are free from chips and inspect regularly for damage.Eccentric pins must be free from lubricant.The optimal setting must be determined in the process.
6. Manufacturerโs recommendation
7. Troubleshooting
8. Guidelines for cutting speed and feed rates
Designation Torque Pos. no.
Countersunk screw M5 3.5 Nm Fig. 1, pos. 2
Clamping screw M6 7.6 Nm Fig. 1, pos. 8
Table 4: Torque specifications
Table 5: Troubleshooting Table 6: Cutting speed and feed rate
Problem: Reason / Cause: Solution:
The profi le is not completely formed, surface on the tooth tip
The profi le depth setting is not correct Adjust the profi le depth setting as specifi ed in chapter 4
The profi le is cut unevenly โ Defi cient concentricity of the workpieceโ Warpage of the workpiece due to exces-
sive projection
โ Over-turn workpiece diameterโ Check extension length and clamping pressure
โ Correct the clearance angle as specifi ed in chapter 3, ref. 6
Tooth base is knurled unevenly Centre height is not correct Adjust the centre height as specified in chapter 3, ref. 2
The fi nished diameter of the workpiece is not correct or has a cone
โ Adjustment depth is not correctโ Clearance angle adjustment not correct
โ Adjust depth as specifi ed in chapter 4โ Correct the clearance angle as specifi ed in
chapter 3, ref. 6
2
Approach position a = (radius of the workpiece) 2 โ (c) 2
Fig. 1: Exploded drawing C612
MaterialWorkpiece ร
[mm]Knurling wheel ร
[mm]
Vc [m/min]
f [mm/rotation]
RadialAxial
Pitch [mm]
from to from to> 0,3< 0,5
> 0,5< 1,0
> 1,0< 1,5
> 1,5< 2,0
Automaten-stahl
< 10 8.9 / 14.5 / 21.5 40 70 0,04 0,08 0,20 0,13 0,08 0,07
10 โ 40 8.9 / 14.5 / 21.5 / 32 / 42 50 90 0,05 0,10 0,28 0,18 0,14 0,10
40 โ 100 14.5 / 21.5 / 32 / 42 65 110 0,05 0,10 0,35 0,25 0,17 0,11
100 โ 250 21.5 / 32 / 42 65 110 0,05 0,10 0,42 0,28 0,18 0,13
> 250 32 / 42 80 100 0,05 0,10 0,45 0,29 0,20 0,14
Rostfreier Stahl
< 10 8.9 / 14.5 / 21.5 22 40 0,04 0,08 0,14 0,09 0,06 0,05
10 โ 40 8.9 / 14.5 / 21.5 / 32 / 42 30 50 0,05 0,10 0,20 0,13 0,10 0,07
40 โ 100 14.5 / 21.5 / 32 / 42 35 60 0,05 0,10 0,25 0,18 0,12 0,08
100 โ 250 21.5 / 32 / 42 35 60 0,05 0,10 0,29 0,20 0,13 0,09
> 250 32 / 42 45 55 0,05 0,10 0,31 0,21 0,14 0,10
Messing
< 10 8.9 / 14.5 / 21.5 55 100 0,04 0,08 0,22 0,14 0,09 0,08
10 โ 40 8.9 / 14.5 / 21.5 / 32 / 42 70 125 0,05 0,10 0,31 0,20 0,15 0,11
40 โ 100 14.5 / 21.5 / 32 / 42 90 155 0,05 0,10 0,39 0,28 0,18 0,12
100 โ 250 21.5 / 32 / 42 90 155 0,05 0,10 0,46 0,31 0,20 0,14
> 250 32 / 42 115 140 0,05 0,10 0,49 0,32 0,22 0,15
Aluminium
< 10 8.9 / 14.5 / 21.5 70 120 0,04 0,08 0,12 0,08 0,05 0,04
10 โ 40 8.9 / 14.5 / 21.5 / 32 / 42 80 150 0,05 0,10 0,17 0,11 0,08 0,06
40 โ 100 14.5 / 21.5 / 32 / 42 110 160 0,05 0,10 0,21 0,15 0,10 0,07
100 โ 250 21.5 / 32 / 42 110 160 0,05 0,10 0,25 0,17 0,11 0,08
> 250 32 / 42 130 150 0,05 0,10 0,27 0,18 0,12 0,08