GDS uGrind Nann 3409E Installation and operation manual

Commissioning // Instruction manual
µGrind
Nann 3409E
grinding deserves SOLUTIONS

32
Due to constant improvements to and further developments of our designs, the information and illustrations in this brochure are non-binding.
The specifications and mounted lengths provided by the machine manufacturer must be observed. All specifications are in mm.
GDS μGrind Nann 3409E GDS μGrind Nann 3409E interference contour
µGrind HPS Nann 3409E
push rod ø40,4
adjustment hammer
GDS wrench SW 5 x 150
QC certificate
USB flash drive with instruction manual
µGrind Nann 3409E case
To use on following machine(s):
Helitronic Mini Power
(excluding Helitronic Mini Automation)
Helitronic Power
Helitronic Power Diamond
Helitronic Vision
Helitronic Essential
Messmaschinen: Helicheck
L110
ø69,95
µGrind Nann 3409E
For dimensions of clamping sleeves, please refer to the manufacturer’s specifications.
110
56,8
66
ø50
2,5
ø61 ø132
(20°)
22,2
77,9
ø98,1
ø53,9
ø33,8
(9°)
Maschinenspindel
machine spindle
➀
➁
➂
➃
➄
➅
➆

4 5
Due to constant improvements to and further developments of our designs, the information and illustrations in this brochure are non-binding.
The specifications and mounted lengths provided by the machine manufacturer must be observed. All specifications are in mm.
Instruction manual μGrind Nann 3409E Instruction manual μGrind Nann 3409E
1. Clean all contact surfaces of the chuck.
2. Assure cleanliness and planarity of machine
interface.
3. The µGrind chuck needs to be at room temperature.
1. Screw the included push rod (2) hand-tight into your
machine spindle.
2. Remove the swarf guard by turning according to the
marking into OPEN position.
3. Use machine control to move pushrod into backward
position.
Step 2:
Step 1: Preparation
Druckstange einschrauben
1. Loosen the adjustment screws.
2. Mount the µGrind chuck on the spindle face using
the wrench (4). SLIGHTLY tighten the mounting
screws. They will be tightened later, when adjusting
the run-out.
Step 3: Mount µGrind Chuck
Wrench Test pin
Dial gauges
Swarf guard
Clamping sleeve
Adjustment screw
Mounting screw
Push rod
Adjustment hammer
IMPORTANT: move push rod into backward
position before mounting the µGrind chuck.
4 mounting screws
4 adjustment screws
Only use the push rod labeled "System
Walter SK50 μGrind Booster" for this
chuck.
Important:
Push rod is in
backward position.

6 7
Due to constant improvements to and further developments of our designs, the information and illustrations in this brochure are non-binding.
The specifications and mounted lengths provided by the machine manufacturer must be observed. All specifications are in mm.
Instruction manual μGrind Nann 3409E
1. Insert the clamping sleeve and screw in clockwise
until resistance is noticed. While turning you may
notice the latching ring clicking (latching sound).
2. As soon as you notice any resistance, unscrew the
clamping sleeve counterclockwise for two clicks.
One ratchet = one click.
3. Turn the blue ring into CLOSE position (fig. 1).
Step 5: Install Clamping sleeve
1. Use machine control to move push rod into forward
position. The µGrind chuck opens automatically.
2. Turn the blue ring into OPEN position (fig. 1)
Step 4: Prepare for Clamping sleeve
Instruction manual μGrind Nann 3409E
1. Insert a fitting test pin into the clamping sleeve and
move the push rod into backward position using
machine control.
This procedure clamps the test pin.
Step 6: Insert Test Pin
NOTE on run-out and repeatability:
Adjust run-out using two dial gauges and a long test
pin. The longer the test pin, the better the adjustment
results. Only use high quality test pins.
Step 1:
1. Install the two dial gauges (Fig. 1)
2. Get the adjustment hammer (3) and the
wrench (4) ready.
3. Assure adjustment screws to be loosened.
4. Run the machine on manual mode.
Preparation 4 Adjustment screws
The easiest way to change clamping sleeves quick and
safely is to use our CoFix clamping sleeve wrench.
Detail: blue ring in OPEN position
Fig. 1
IMPORTANT: move push rod into forward
position to open the chuck.
Push rod is in
forward position.
Detail: blue ring in CLOSE position
Fig. 2
Clamping sleeve must NEVER
be clamped without pin / blank / tool inside.
CAUTION: during each machine shut down,
a tool must remain clamped
in the chuck, when mounted.
IMPORTANT: move push rod into backward
position to clamp the test pin.
Adjustment Run-out and Repeatability
Use two dial gauges with a resolution of at least
0,0001mm.
Please take some time to adjust run-out and wobble. The better you adjust the µGrind chuck the first time, the more
precise it will remain when changing clamping sleeves.
Fig. 1

8 9
Due to constant improvements to and further developments of our designs, the information and illustrations in this brochure are non-binding.
The specifications and mounted lengths provided by the machine manufacturer must be observed. All specifications are in mm.
Adjustment Run-out and Repeatability
Focus on first dial gauge.
Run-out is adjusted by tapping on the adjustment area
with the adjustment hammer (3).
1. Constantly turn A-axis until the dial gauge reaches
the peak. Reduce this value by half in lightly tapping
the adjustment area with the adjustment hammer.
2. Repeat this procedure until you adjusted run-out to
0,001 mm. Now tighten the four mounting screws
crosswise with 12Nm.
3. Unclamp and clamp the test pin three to five times, so
the µGrind chuck can settle and tensions disappear.
4. Check the run-out again and readjust, if necessary.
Focus on second dial gauge.
1. Lightly tighten the 4 adjustment screws.
2. Constantly turn A-axis and stop, when the dial gauge
reaches the peak.
3. Tighten the adjustment screw closest to the peak point
using the wrench (4), so the dial gauge result is halved.
4. Turn the chuck for two to three rounds. If wobble is
still detectable repeat step 2 and 3 until run-out and
wobble are below 0,001mm.
5. Mount the swarf guard again.
6. Now you can start grinding.
Step 2:
Step 3:
Run-Out
Wobble
Depending on the application, regular run-out checks
are recommended.
first dial gauge
second dial gauge
adjustment area
4 adjustment screws
4 mounting screws
Change clamping sleeve // Remove chuck
Change clamping sleeve Remove chuck
adjustment hammer
Important:
make sure that the µGrind does not contact coolant
hoses etc. during your grinding process.
Always clean the µGrind chuck after use. Store chuck
in anticorrosive environment.
• Move push rod into forward position to unclamp
the chuck. Remove the test pin/ blank/ tool.
• Screw the new clamping sleeve into the chuck, fol-
lowing the descriptions on page 6.
• Turn the blue locking ring from CLOSE to OPEN and
unscrew the clamping sleeve.
• clamp a new test pin to check the run-out and
wobble using two dial gauges.
Step 1:
Step 3:
Step 2:
Step 4:
• Move push rod into forward position to open the
chuck. Remove the test pin/ blank/ tool.
• Remove the swarf guard and loosen the four adjust-
ment screws with the wrench (4).
• Turn the blue locking ring from CLOSE to OPEN and
unscrew the clamping sleeve.
• Move push rod backwards.
• Loosen the four mounting screws.
• Remove the µGrind chuck from the machine
spindle and store in the original bag.
Pay attention to store the chuck in an anticorrosive
environment.
• Remove push rod from the machine spindle.
• Keep the µGrind chuck and accessories in the
µGrind case.
Step 1:
Step 3:
Step 2:
Step 4:
Important:
if you wish to remove the µGrind chuck with an HPS
clamping sleeve mounted, a test pin/ blank/ tool
must remain clamped in the clamping sleeve to assure
chuck
and clamping sleeve not to be damaged.

1110
GDS μGrind Nann 3409E
Due to constant improvements to and further developments of our designs, the information and illustrations in this brochure are non-binding.
The specifications and mounted lengths provided by the machine manufacturer must be observed. All specifications are in mm.
GDS µGrind Safety Instructions
Important:
• The µGrind series (clamping chucks) has been designed for equipping and changing
rotation-symmetrically blanks and tools with shaft tolerance of h6 or better.
• Shaft tools according to DIN 1835 Form A, B, E resp. DIN 6535 Form HA, HB, HE
can be clamped.
• Products of the µGrind series (chucks and clamping sleeves) must be only used according to
their
technical specification.
• These products are intended for industrial application.
• The use of µGrind products includes respecting all specifications and according to all
regulations, included in this instruction.
• Faultless functioning as well as warranty claims can only be granted when using
original GDS-accessories.
μGrind Nann 3409E
Item No. Name D L
400001004 µGrind
Nann 3409E 69,95 110
Delivery includes:
Case, actuating pushrod, adjustment hammer,
wrench, USB flash drive with instructions
ø50
ø132
66
L110
ø69,95
ø34
Available for following machine(s):
Helitronic Mini Power
(excluding Helitronic Mini Automation)
Helitronic Power
Helitronic Vision
Helitronic Essential
Measuring machines: Helicheck
Accessories:
ø64
30
Available for following machine(s):
ANCA MX 5, ANCA MX 7
Item No. Name
350290001 Adapter flange ANCA
with actuating pushrod
81
Item No. Name
350060012 CoFix 20
(for W20 and Nann 3409E)
Screw-in tool for clamping sleeves
Collet - maximum bore ø16

12
GDS µGrind Troubleshooting
Check following issues:
• Check locking pressure.
• Check blank.
• Check if µGrind chuck is soiled.
• Check if blue locking ring is closed properly.
• Check if mounting and adjustment screws are tightened enough.
• Check if push rod is screwed in correctly.
• Check if µGrind chuck is at room temperature.
• Uninstall all parts. Clean and start off from the beginning again, following the instructions.

GDS Präzisionszerspanungs GmbH
Endelbergstrasse 8
D - 72131 Ofterdingen
Telefon: + 49 (0) 74 73 - 27 26 72
Telefax: + 49 (0) 74 73 - 27 26 49
Email: [email protected]
Web: www.gds-praezision.de