System 3R 3R-770.6-1 User manual

i814e.DOC ב
Instruction for Dynafix base for CM
M
3R-770.6-1 / 3R-770.46-1
I-814-E 02.12

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
2System 3R International AB © I-814-E 02.12 Subject to modifications
Contents
General ..................................................................................... 3
Function.................................................................................... 5
Installation................................................................................ 8
Alignment ................................................................................. 9
Maintenance ........................................................................... 11
Checking springs and O-ring - Dynafix ................................ 11
Checking springs and O-ring – Macro or Combi ................. 13
Parts list.................................................................................. 14
Do not use this equipment until you have read through the
instructions and are well conversant with the contents.
Keep this instruction in a safe place for future reference.
This equipment may never be used, by itself or in
combination with, other equipment or accessories for any
purpose other than that for which it is intended.
Do not hesitate to get in touch with the nearest 3R-
representative if you have any questions.
This instruction applies for 3R-article:
Article number 3R-770.6-1 / 3R-770.46-1
Quality certificate C-00846-02.12 / C-00847-02.12
System 3R International AB
System 3R International 1997
Sorterargatan 1
S-162 50 Vällingby
Sweden

Instruction for Dynafix base for CMM 3R-770.6-1 / 3R-770.46-1
System 3R International AB © I-814-E 02.12 Subject to modifications 3
General
Area of use
The Dynafix Machine Base with Macro or Combi
chuck in center, is a pneumatically operated table
chuck for manual change of pallets in coordinate
measuring machines.
Environment
The required air pressure: 6±1 bar (75-100 psi).
Air quality according to ISO 8573-1 class 5.3.5 is
recommended. The air quality affects the service
interval. The air should always be dried. Oil mist
lubrication is recommended.
Specification - Dynafix
Repetition Accuracy 0.002 mm
Max. Weight of workpiece 250 kg*
Clamping force 60 kN
Weight 37 kg
Specification - Macro (valid for 3R-770.6-1)
Repetition Accuracy 0.002 mm
Max. Weight of workpiece 50 kg*
Clamping force 7 kN
Drawbar - Macro 3R-605.1
Specification - Combi ( valid for 3R-770.46-1)
Rep. Accuracy Junior 0.002 mm
Rep. Accuracy Macro 0.002 mm
Max. Weight of workpiece Junior 1 kg*
Max. Weight of workpiece Macro 10 kg*
Clamping force 5 kN
Drawbar Junior 3R-405.11
Drawbar Macro 3R-405.16
* to maintain repetition accuracy of 0.002 mm

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
4System 3R International AB © I-814-E 02.12 Subject to modifications
References
Dimensions
Accessory
Master pallet (F) 3R-776.1
Master unit Junior 3R-406.11
Master unit Macro 3R-606.1
Control Unit (2x) 3R-611.41
Dial indicator 3R-3.2
Air gun connector kit 3R-SP20753
Pallet 3R-771.1, 3R-772.1**
(display of 3R-770.46-1)
X / Y flexing lips
Chuck in center
Z (4x4)
X
Y
Z
277
300
340
79
73
60
73
206 277
Z-refs

Instruction for Dynafix base for CMM 3R-770.6-1 / 3R-770.46-1
System 3R International AB © I-814-E 02.12 Subject to modifications 5
Drawbar Macro 3R-605.1
Drawbar Junior 3R-405.11
Drawbar Macro Combi 3R-405.16
** For additional Accessories, see a current System 3R catalogue or
contact your nearest System 3R representative.
Function
Air Connections
The automatic table chuck is designed for mounting
on the machine table. A control unit is used to
maneuver the chuck with compressed air. All air
connections are on the same side of the chuck. The
marked connections provide the chuck with air
according to the following:
1.
2.
11.
12.
E
Dynafix
Unclamp
Air blast/ Turbo
function
Chuck in center
Unclamp
Air blast/ Turbo
function
Ventilation
If use of an air gun is required, solution is found in
accessory 3R-SP20753. As the chuck is already fully
prepared, the house that comes with 3R-SP20753 is
not required. Thus reduce stick out of connector.

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
6System 3R International AB © I-814-E 02.12 Subject to modifications
Closing sequence / clamp
The Dynafix base is closed mechanically by four
spring loaded pistons and is also similar for chuck in
center. The locking force is increased with the aid of
compressed air, the Turbo function. When the
maximum locking force is achieved, the air pressure
can be turned off. Locking force decreases if the
compressed air is turned off. It is recommended to
keep the air pressure on for maximum locking force
with exception for Combi which however requires to
have the air turned off.
Opening sequence / unclamp
The chuck is closed in the idle position and can only
be opened by applying air pressure through
connection (1) for Dynafix and (11) for chuck in
center. The opening air pressure presses the locking
pistons back so that the steel balls can move inwards
and release the pallet. The closing air, Turbo
pressure, must be released before the chuck can be
opened.
Turbo / Air blast
The clamping force is increased with the aid of
compressed air, the Turbo function. The chucks Z-
references are cleaned with air blasts through
connection (2) for Dynafix and (12) for chuck in
center.

Instruction for Dynafix base for CMM 3R-770.6-1 / 3R-770.46-1
System 3R International AB © I-814-E 02.12 Subject to modifications 7
Closing and opening sequence with air gun
1. Release enclosed air pressure in Turbo
chamber, with a finger or other aid, by pressing
the valve at connection ”Turbo” (2) for Dynafix
and (12) for chuck in center.
2. Air gun is pressed to the inlet valve at
connection ”Unclamp” (1) for Dynafix and (11)
for chuck in center, at a duration of a few
seconds. Springload in valve will ensure that
built up air pressure will be enclosed.
3. Change the pallet.
4. Release enclosed air pressure in Unclamp
chamber, with a finger or other aid, by pressing
the valve at connection ”Unclamp” (1) for
Dynafix and (11) for chuck in center. The
springloaded piston is activated and clamp the
pallet in chuck.
5. Air gun is pressed to the inlet valve at
connection ”Turbo” (2) for Dynafix and (12) for
chuck in center, at a duration of a few seconds.
Springload in valve will ensure that built up air
pressure will be enclosed.
Ventilation
The table chuck is provided with a hole (E), which
function as a channel to the chuck. The ventilation
holes should be unplugged to let any overpressure
out during measuring operation.
Sealing (A)
The chuck is provided with a sealing (A) around its
periphery. The sealing seals against the pallet, so
that liquid cannot come in between the table chuck
and the pallet. The table chuck must be dried.

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
8System 3R International AB © I-814-E 02.12 Subject to modifications
Installation
The chuck is mounted onto the machine table in a
suitable working position.
At installation, master pallet and dial indicator is
required.
Check that the machine table is plane before
mounting.
Air supply must be connected before the chuck is
able to operate.
Preparations
1. Clean and treat the
underside of the chuck
with Houghton Rust
Veto 76HF or Corr-
1142 before it is
mounted on the
machine table.
Mount the chuck onto the machine table
1. Align the chuck on machine table that either
reference axis or surface is parallel to machine
axis.
2. The table chuck is mounted on the machine
table with the enclosed screws (B) and washers
(C). Leave screws little loose just enough to
allow adjustments.
Connecting air supply
Note! The air pressure must not exceed 7 bars.
Higher air pressure will damage the chuck.
The Air supply is controlled by Control units
Accessory 3R-611.41 (2x), see enclosed instruction.
1. Screw the enclosed air nipple (D) in the holes (1)
and (2) for Dynafix and (11) and (12) for chuck
in center. (R1/8”-connection).

Instruction for Dynafix base for CMM 3R-770.6-1 / 3R-770.46-1
System 3R International AB © I-814-E 02.12 Subject to modifications 9
2. Connect air tubes from
(1), (2), (11) and (12) to
control units. (Use PU-4
air tube, dimension 6x1
mm).
3. Connect air supply as instructed for Control
units, see instruction valid for the unit(s).
4. Check air connection and the chucks function.
The closing time for the chuck must be at least
2 seconds when air blast is used. When a
continuous Turbo pressure is used, the Turbo
pressure must be turned off before the chuck
can be opened.
Alignment
Angle
Place the master pallet (F) on the chuck and close
the chuck. The procedure is similar thus for Macro
and Combi chucks.
1. Indicate on the plane
reference surface on
the master pallet.
2. Adjust the chuck until
the X-axis is parallel to
machine’s axis.
3. Remove the master
pallet.
4. Tighten the screws (B).
5. Check the alignment after screws have been
tightened and adjust if required.

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
10 System 3R International AB © I-814-E 02.12 Subject to modifications
Locate the center of the chuck
Center of the chuck can
be found by indicating on
the reference hole.
Distance to the Z-references
The Z-height of the chuck is found by indicating on
the Z-references.
Aligning the chuck in center
The chuck in center is already aligned in relation
to Dynafix. An offset value has to be set for the
chuck in center to compensate deviation in
position.

Instruction for Dynafix base for CMM 3R-770.6-1 / 3R-770.46-1
System 3R International AB © I-814-E 02.12 Subject to modifications 11
Maintenance
Note! Do not disassemble the chuck without service
instructions and special tools. Incorrect disassembly
can damage the chuck.
General care
Lubricate the table chuck to avoid rusting.
Difficulties in operating the chuck are often due to
faulty O-rings. Check the O-rings and change if
necessary. See next page for detailed instructions
for checking and changing the O-rings.
When not in use
Clean and protect with antirust oil.
Daily
Inspect and clean the chuck’s X/Y- och Z-references.
Weekly
Clean and lubricate all ground reference surfaces.
Yearly
Remove chuck from machine table and clean
surfaces. Lubricate according to installation
procedures.
Lubricant
Recommended lubricant: Klüber Barrieta L 55/2 or
equivalent.
Checking springs and O-ring - Dynafix
1. Checking springs and o-rings, should be done
on an annual basis. When one of the springs is
damaged, there is a risk that even the
remaining springs will be damaged, it is
therefore important that the cup springs (G)
are checked and change them if required.
Damaged or parts with wear, change if
required.
2. Disassemble the chuck from the machine
table, clean the underside.

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
12 System 3R International AB © I-814-E 02.12 Subject to modifications
3. Remove the retaining
ring with pliers.
Work with one piston
at a time.
4. Remove the top cover
with the aid of a
magnet. Check O-
ring (H), replace if
necessary.
5. Remove the screw in
the middle. Hold
piston from
underneath with an
allen key.
6. Remove disc with a
magnet. Check O-
ring (I). Replace if
necessary.
7. Take out the disc
springs with a
screwdriver, check
each spring (G).
Replace if necessary.

Instruction for Dynafix base for CMM 3R-770.6-1 / 3R-770.46-1
System 3R International AB © I-814-E 02.12 Subject to modifications 13
1. Lubricate the cylinder surfaces and all parts
of the chuck house with Klüber Barrieta L
55/2 or equivalent. Mount the springs as
shown below. Parts and surfaces are to be
generously lubricated. Incorrect mounting of
springs may damage the chuck, full clamping
force will not be achieved.
2. Remount the disc.
Tightening torque is
40 Nm. Difficulties in
mounting the disc
can be due to
incorrectly mounted
springs.
3. Remount the top cover and retaining ring.
Repeat the procedure with the other pistons.
Install the chuck according to this instruction.
Checking springs and O-ring – Macro or Combi
Do not disassemble the chuck in center. It can only
be done by authorized 3R personnel. At a
disassembly, accuracy will be lost.
H
I
G

3R-770.6-1 / 3R-770.46-1 Instruction for Dynafix base for CMM
14 System 3R International AB © I-814-E 02.12 Subject to modifications
Parts list
Description Article no. Quantity
Seal (A) 20829-00 1
Screw 12.9 (B) MC6S-12x35 4
Washer (C) 10138-00 4
Air nipple (D) 45800-S021 4
Spring (G) 45700-B016 28
O-ring (H) O-82.14x3.53 4
O-ring (I) O-90.0x2.0 4