Gesipa 8000 User manual

Automatic Blind Riveting Unit
GAV electronic
Model 8000
Model 8000 eco
Fully Automatic Blind Riveting System
Year of construction . . . . . . . .
Device No. . . . . . . . . . . . . . . . . .
Operating Instructions
With Spare Parts List and Accessories
GESIPA Blindniettechnik GmbH T [phone]
Nordendstraße 13-39 F [phone]
64546 Mörfelden-Walldorf [email protected]
Germany www.gesipa.com

Table of Contents
Table of Contents
Table of Contents
Section
Page
1. Dimension Sheet, Technical Data and Working Range ....................
4
2. Intended Use and Safety Information .................................................
5 - 6
3. Environmental Information, Recycling, Declaration of Conformity..
7
4. Transportation and Installation ...........................................................
8
5. Start-Up and Operation ........................................................................
9 - 10
6. Functional Principle .............................................................................
11
7. Functional Description .........................................................................
12 - 16
8. Operation ...............................................................................................
17
8.1 Operating Controls ........................................................................
18
8.2 Graphic Display .............................................................................
19
8.3 Menu Structure ..............................................................................
20
8.4 Main Menu .....................................................................................
21 - 22
8.5 Error Messages .............................................................................
23 - 25
8.6 Access Authorisation .....................................................................
26
8.7 Manual Operation ..........................................................................
27
8.8 Parameter Settings ........................................................................
28
8.9 Data Selection ...............................................................................
29
8.10 Text Entry ......................................................................................
30
9. GAV Settings .........................................................................................
31
9.1 Vibration Feed Unit ........................................................................
32
9.2 Pressure Sensors ..........................................................................
33 –35
9.3 Large Pressure Booster .................................................................
36 –39
9.4 Small Pressure Booster .................................................................
40 –41
9.5 Separator .......................................................................................
42
9.6 Blow Air .........................................................................................
43 –44
9.7 Mandrel Evacuation .......................................................................
45 –46
9.8 Cycle .............................................................................................
47
9.9 Additional Functions ......................................................................
48
9.10 PLC Activation ...............................................................................
49
9.11 Continuous Test ............................................................................
50
9.12 I/O Test ..........................................................................................
51
9.13 PLC Interface Test .........................................................................
52
10. Maintenance ..........................................................................................
53
10.1 Maintenance Information ...............................................................
54 –55
10.2 Maintenance Messages .................................................................
56 –57
i
- 1 -

Table of Contents
Table of Contents
Table of Contents
Section
Page
11.
Process Monitoring .........................................................................
58
11.1 Functional Principle ...................................................................
59
11.2 Settings ......................................................................................
60 –61
11.3 Creating Profile ..........................................................................
62 –66
11.4 Loading Profile ...........................................................................
67
11.5 Saving Profile .............................................................................
68 –69
11.6 Creating Profile List ...................................................................
70 –73
11.7 Loading Profile List ....................................................................
74
11.8 PLC Profile Lists ........................................................................
75
11.9 Process Monitoring Calibration ..................................................
76
11.9.1 Force Calibration .........................................................
77
11.9.2 Displacement Calibration .............................................
78
12.
Process Data ....................................................................................
79
13.
Process Counter ..............................................................................
80
14.
Operating Data Acquisition ............................................................
-
15.
Access Codes ..................................................................................
81
16.
Time and Language .........................................................................
82
17.
System Information .........................................................................
83
18.
GRivCheck .......................................................................................
84
19.
Fault - Supply Unit ...........................................................................
85
20.
Fault - Blind Riveting Gun ..............................................................
86 –89
21.
Blind Riveting Gun Repair Instructions ........................................
90 –93
22.
Removing and Installing Pressure Booster ..................................
94 –95
23.
Pressure Booster Repair Instructions ...........................................
96 –97
24.
Filling Hydraulic Systems ...............................................................
98 –99
25.
Replacing Controller Components ................................................
100
26.
Pneumatic Circuit Diagram ............................................................
101
27.
Electrical Circuit Diagram ...............................................................
102 –103
28.
PLC Interface ...................................................................................
104
28.1 Technical Description ..............................................................
105 –107
28.2 PLC Interface Test .....................................................................
108
28.3 PLC Activation ...........................................................................
109 –110
28.4 Process Counter ........................................................................
111
28.5 Profile List Selection ..................................................................
112
28.6 Profile Selection, Direct .............................................................
113
28.7 Profile Selection, In Steps .........................................................
114
28.8 Process Evaluation ....................................................................
115
28.9 Component Evaluation ..............................................................
116
28.10 Other Functions ....................................................................
117
29.
Teach-in of Measurement Range.the Displacement Sensor
(WS1)
118 - 119
i
- 2 -
Not included in GAV-8000 eco

Table of Contents
Table of Contents
Table of Contents
Spare Parts List
Overview of Assemblies
Spare Parts
List Page
Group 1: Pneumatics Assembly ...........................................................
2 –3
Group 2: Blind Riveting Gun .................................................................
4 –10
Group 3: Hydraulic Booster Unit ..........................................................
11 –12
Group 4: Separator ................................................................................
13
Group 5: Housing Unit ...........................................................................
14
Group 6: Vibration Feed Unit ................................................................
15
Group 7: Supply Line Assembly ...........................................................
16
Group 8: Controller ................................................................................
17
Group 9: Accessories ............................................................................
18 –19
Group 10: Front Panel .............................................................................
20
Group 11: Wiring Harness .......................................................................
21 –23
i
- 3 -

1 Dimension Sheet, Technical Data and Working Range
Dimension Sheet, Technical Data
and Working Range
Supply unit
Weight:
100 kg
Volume of spent mandrel container:
approx. 1800 - 5500 pieces (3.5 l) depending on size
Electrical system
- Nominal voltage:
230 Volt ~ 50 Hz
- Nominal current:
< 2.5 A
- Protection class:
IP 54
Pneumatic system
- System pressure:
< 10 bar
- Operating pressure:
6 - 7 bar
- Air consumption/riveting operation:
15 NL
- Air consumption/spent mandrel evacuation system (VAS)
340 NL/min.
- Power cable:
½ " (12.5 mm) max. 5 m long
- Mandrel evacuation hose:
3.75 m long / outside 8 mm / inside 5 mm
- Pressure booster:
pneumatic/hydraulic
Hydraulic system
- Hydraulic oil ISO-VG 46 (e.g. Shell Hydrol HV 46 or comparable HVLP-D products):
1.2 l
- Viscosity, kinematic at 40°C (DIN 51562) with no silicone components:
47 mm²/s
Ambient temperature:
10 - 40 °C
Blind riveting gun
- Weight:
approx. 2.5 kg
- Setting stroke:
16 - 20 mm
- Setting force:
11770 N
- Length of hose assembly (standard):
3.75 m
- Working cycle (theoretical setting rate) when used as intended:
1.25 s
Working range
- Blind rivet up to Ø 5.0 mm stainless steel
- Blind rivet up to Ø 6.0 mm steel
- Blind rivet up to Ø 6.4 mm aluminium
- Max. setting head diameter:
11.4 mm
- Max. blind rivet body length:
(other lengths available on request)
25.0 mm
The device is set up for a defined type of blind rivet
suitable for automatic machines as per delivery agreement.
1
- 4 -

1-R Dimension Sheet, Technical Data and Working Range
Dimension Sheet, Technical Data
and Working Range
Supply unit
Weight:
100 kg
Volume of spent mandrel container:
approx. 1800 - 5500 pieces (3.5 l) depending on size
Electrical system
- Nominal voltage:
230 Volt ~ 50 Hz
- Nominal current:
< 2.5 A
- Protection class:
IP 54
Pneumatic system
- System pressure:
< 10 bar
- Operating pressure:
6 - 7 bar
- Air consumption/riveting operation:
15 NL
- Air consumption/spent mandrel evacuation system (VAS)
340 NL/min.
- Power cable:
½ " (12.5 mm) max. 5 m long
- Mandrel evacuation hose:
3.75 m long / outside 8 mm / inside 5 mm
- Pressure booster:
pneumatic/hydraulic
Hydraulic system
- Hydraulic oil ISO-VG 46 (e.g. Shell Hydrol HV 46 or comparable HVLP-D products):
1.2 l
- Viscosity, kinematic at 40°C (DIN 51562) with no silicone components:
47 mm²/s
Ambient temperature:
10 - 40 °C
Blind riveting gun
- Weight:
approx. 2.5 kg
- Setting stroke:
16 - 20 mm
- Setting force:
11770 N
- Length of hose assembly (standard):
3.75 m
- Working cycle (theoretical setting rate) when used as intended:
1.25 s
Working range
- Blind rivet up to Ø 5.0 mm stainless steel
- Blind rivet up to Ø 6.0 mm steel
- Blind rivet up to Ø 6.4 mm aluminium
- Max. setting head diameter:
11.4 mm
- Max. blind rivet body length:
(other lengths available on request)
25.0 mm
The device is set up for a defined type of blind rivet
suitable for automatic machines as per delivery agreement.
1-R
- 4-R -

1-U Dimension Sheet, Technical Data and Working Range
Dimension Sheet, Technical Data
and Working Range
Supply unit
Weight:
100 kg
Volume of spent mandrel container:
approx. 1800 - 5500 pieces (3.5 l) depending on size
Electrical system
- Nominal voltage:
230 Volt ~ 50 Hz
- Nominal current:
< 2.5 A
- Protection class:
IP 54
Pneumatic system
- System pressure:
< 10 bar
- Operating pressure:
6 - 7 bar
- Air consumption/riveting operation:
15 NL
- Air consumption/spent mandrel evacuation system (VAS)
340 NL/min.
- Power cable:
½ " (12.5 mm) max. 5 m long
- Mandrel evacuation hose:
3.75 m long / outside 8 mm / inside 5 mm
- Pressure booster:
pneumatic/hydraulic
Hydraulic system
- Hydraulic oil ISO-VG 46 (e.g. Shell Hydrol HV 46 or comparable HVLP-D products):
1.2 l
- Viscosity, kinematic at 40°C (DIN 51562) with no silicone components:
47 mm²/s
Ambient temperature:
10 - 40 °C
Blind riveting gun
- Weight:
approx. 2.5 kg
- Setting stroke:
16 - 20 mm
- Setting force:
11770 N
- Length of hose assembly (standard):
3.75 m
- Working cycle (theoretical setting rate) when used as intended:
1.25 s
Working range
- Blind rivet up to Ø 5.0 mm stainless steel
- Blind rivet up to Ø 6.0 mm steel
- Blind rivet up to Ø 6.4 mm aluminium
- Max. setting head diameter:
11.4 mm
- Max. blind rivet body length:
(other lengths available on request)
25.0 mm
The device is set up for a defined type of blind rivet
suitable for automatic machines as per delivery agreement.
- 4-U -
1-U

1-UA Dimension Sheet, Technical Data and Working Range
Dimension Sheet, Technical Data
and Working Range
Supply unit
Weight:
100 kg
Volume of spent mandrel container:
approx. 1800 - 5500 pieces (3.5 l) depending on size
Electrical system
- Nominal voltage:
230 Volt ~ 50 Hz
- Nominal current:
< 2.5 A
- Protection class:
IP 54
Pneumatic system
- System pressure:
< 10 bar
- Operating pressure:
6 - 7 bar
- Air consumption/riveting operation:
15 NL
- Air consumption/spent mandrel evacuation system (VAS)
340 NL/min.
- Power cable:
½ " (12.5 mm) max. 5 m long
- Mandrel evacuation hose:
3.75 m long / outside 8 mm / inside 5 mm
- Pressure booster:
pneumatic/hydraulic
Hydraulic system
- Hydraulic oil ISO-VG 46 (e.g. Shell Hydrol HV 46 or comparable HVLP-D products):
1.2 l
- Viscosity, kinematic at 40°C (DIN 51562) with no silicone components:
47 mm²/s
Ambient temperature:
10 - 40 °C
Blind riveting gun
- Weight:
approx. 2.5 kg
- Setting stroke:
16 - 20 mm
- Setting force:
11770 N
- Length of hose assembly (standard):
3.75 m
- Working cycle (theoretical setting rate) when used as intended:
1.25 s
Working range
- Blind rivet up to Ø 5.0 mm stainless steel
- Blind rivet up to Ø 6.0 mm steel
- Blind rivet up to Ø 6.4 mm aluminium
- Max. setting head diameter:
11.4 mm
- Max. blind rivet body length:
(other lengths available on request)
25.0 mm
The device is set up for a defined type of blind rivet
suitable for automatic machines as per delivery agreement.
1-UA
- 4-UA -

2 Intended Use and Safety Information
Intended Use
and Safety Information
Intended use
The blind riveting system is intended solely for the purpose of processing blind rivets that
are suitable for automatic machines. Any other than the intended use shall be deemed as
not for the intended purpose.
The operator must be instructed and observe the safety information.
Safety information
The device is of state-of-the-art design and constructed in accordance with recognised safety
regulations.
Safe operation is ensured when the device is used for its intended purpose.
The device is intended solely for the purpose of processing blind rivets.
The operating instructions must be read before starting up the device.
Work on the electrical equipment of the device may only be undertaken by qualified electri-
cians in accordance with the electrical engineering codes of practice.
Work on the mechanical, hydraulic and pneumatic systems may only be undertaken by in-
structed persons with specific knowledge of the device.
To protect against electric shock, injury and the risk of fire it is necessary when
carrying out all setup, maintenance and repair work as well as rectifying device
malfunctions to
- wear safety goggles
- ensure that the power plug is disconnected
- ensure the compressed air supply is disconnected from the device
- check that there is no blind rivet on the chute and in the separator unit
- never point the riveting gun at persons or other creatures.
The blind rivet is fed at high speed from the supply unit through the feed hose to
the blind riveting gun.
If it is necessary to remove the feed hose or the spreader nosepiece while carry-
ing out repair or maintenance, the measures described above must be adhered
to and a warning sign additionally displayed on the device.
Failure to use the device for its intended purpose, or to use the device improper-
ly, may result in injury.
2
Caution!
- 5 -

2 Intended Use and Safety Information
Intended Use
and Safety Information
Accident prevention
Only persons may work with the GAV-8000 who
- have read and understood the operating instructions and safety information - instruction
- have checked the device and workplace for potential danger to life and limb before starting
work
- comply with the accident prevention regulations
- do not wear long hair open, loose clothing or jewellery, including rings - risk of injury
- wear personal protective equipment such as: protective clothing, safety goggles, ear protec-
tion, safety footwear, safety gloves.
Workplace
The workplace for this automatic blind riveting system is intended solely for an instructed op-
erator with specific knowledge of this system.
Keep workplace neat and tidy.
Do not expose the blind riveting system to rain, wet conditions or moisture.
Do not operate the blind riveting system in the vicinity of combustible gases or liquids. Danger
of explosion!
Ensure adequate lighting at the workplace.
Ensure a stable foundation for the operator and the blind riveting system, uneven surfaces
may lead to injury.
Observe the Hazardous Substance Ordinance when handling hydraulic oil.
Blind riveting system
The spreader nosepiece and the mandrel guide with evacuation hose or a spend mandrel con-
tainer must be installed before starting up the blind riveting system.
Do not use tool without material! The blind rivet could be flung from the de-
vice! Never turn the tool towards yourself or towards another person!
Do not overload the blind riveting system.
Before starting operation, check that the blind riveting system is in perfect
working condition.
If mounted on a transport frame, secure the steered casters by applying the
brake.
Maintenance and repair work must only be carried out by suitably skilled per-
sonnel. In case of doubt, always send in the device to the manufacturer.
Spare parts and accessories must correspond to the requirements specified
by the manufacturer. Genuine parts comply with these requirements.
After use, securely replace the blind riveting gun to prevent it falling from its
holder.
Keep the blind riveting system in good working order. (Keep handle dry and
free of oil and grease.)
Regularly check the connectors and cables. If damaged, have replaced by an
electrician.
Routinely check the compressed air and hydraulic connections and lines. If
damaged, have replaced by a correspondingly instructed person.
2
Caution!
- 6 -

3 Environmental Information, Recycling, Declaration of Conformity
Environmental Information, Recycling,
Declaration of Conformity
Environmental information
Noise emission of the blind riveting system.
Applicable directives: 2006/42/EC:
Continuous sound level: LPA 78/84 dB without/with feed unit
Measurement uncertainty K= 3 dB
Vibration of GAV gun.
Applicable directives: 2006/42/EC:
<2.55 m/s2
Measurement uncertainty K=1 m/s²
Recycling
Dispose of used hydraulic oil and spent mandrels in the corresponding recycling systems.
Comply with the Hazardous Substances Ordinance.
Declaration of conformity
We hereby declare under sole responsibility that the products conform to the
following standards and directives:
2006/42/EC
2006/95/EC
2004/108/EC
pp Dr. Richard Gärtner Hans Ulrich Harder
3
- 7 -

4 Transportation and Installation
4 Transportation and Installation
Transportation
Corresponding to the agreement, the blind riveting system is delivered and installed or dis-
patched upright in a special wooden container.
Left unpacked, the blind riveting system can be moved with a trolley, available as an acces-
sory, on an even floor. The blind riveting system must be transported by the two lifting eyes
on the top of the supply unit and suitable lifting gear or secured upright on a pallet by a pallet
truck or fork-lift truck.
The blind riveting system is supplied ready for connection and contains
approx. 1.2 litres of hydraulic oil in its closed hydraulic system. The
supply unit must always be transported in upright position and its stabil-
ity ensured.
Installation
Operating pressure: min. 6 bar
- The compressed air supply system must be capable of making available dried, oil-free
compressed air at a rate of 750 NL/min which must not drop below a pressure of 6 bar dur-
ing operation of the GAV device (do not use mist lubricator!).
- Pipe diameter 3/4"
The inside diameter of the compressed air supply hose must be at least
12.5 mm (1/2"). The pressure must not drop below 6 bar during the riv-
eting process; check operating pressure on pressure gauge.
Hydraulic oil: For viscosity see technical data.
Electrical connection: 230 V ~ 50 Hz, alternatively 115 V ~ 60 Hz.
4
Caution!
Caution!
- 8 -

5 Start-Up and Operation
Start-Up and Operation
Prior to start-up, read and follow the GAV operat-
ing instructions and safety information. Also ob-
serve the generally applicable Occupational
Health and Safety Regulations.
Start-up
- Connect the device to the compressed air sup-
ply system.
- Set the operating pressure at the pressure re-
ducer valve to 6 bar, check on pressure gauge.
- Connect the power supply.
- Switch on the device at the master switch.
- Fill the vibration feed container half full with
blind rivets and switch on the vibration feed unit
(button F4, see Section 8 "Operation").
- Set the separator tongue at the setting screw
such that only one blind rivet at a time is sepa-
rated.
- Press "ON" button.
- Trigger blind riveting gun twice ("Cycle" func-
tion in "MAN" menu). The first blind rivet is
transferred to the spreader nosepiece.
As per the delivery specifications, the device is set
up for a certain size of blind rivet. Nevertheless
make sure that
- the inside diameter of the rivet feed hose is 2 - 3
mm larger than the setting head diameter of the
blind rivet (max. setting head diameter 11.4 mm)
- the hole of the spreader nosepiece 2-80 is 0.3
mm larger than the mandrel diameter of the blind
rivet. Spreader nosepieces with a cylindrical ex-
tension of up to 15 mm are available for difficult
to access riveting points (note length of blind riv-
et mandrel)
- the holding force of the spreader nosepiece 2-80
can be increased if necessary by fitting additional
O-rings.
5
Note!
- 9 -
Maintenance unit
Separator
Spreader nosepiece 2-80
Pressure reducer
valve
Pressure gauge
Separator tongue
Setting screw
Hole
O-ring

5 Start-Up and Operation
Start-Up and Operation
- jaws corresponding to the diameter of the
blind rivet mandrel are used. The jaw sizes
are graduated as follows:
- the adjustable baffle ahead of the outlet
channel of the vibration feed container is
set such that only one blind rivet can pass
through this chicane.
- the spacing between the chute plates is
set to approx. the mandrel diameter +0.5
mm.
Operation
Insert the blind rivet, set in the working position in the riveting gun, in the blind rivet hole up to
the setting head.
The riveting operation is triggered by pressing the triggering button, the spent mandrel is re-
moved and the next blind rivet is automatically made available in the working position.
Immediately after the blind rivet mandrel has broken off, the blind riveting gun must be pulled
back from the riveting point to ensure the next blind rivet can be fed in unobstructed from the
spreader nosepiece.
The spent mandrels are automatically conveyed to the spent mandrel container. The evacua-
tion system is then switched off automatically.
The spent mandrel container can hold 1800 to 5500 spent mandrels (depending
on the size). Ensure the spent mandrel container is emptied in good time.
The blind riveting gun can be conveniently suspended from the balancer at the workplace.
The supply unit must only be placed on an even surface. The operator must always check
the stability.
Blind rivet mandrel diameter
1.5 to 2.1 mm
2.1 to 2.7 mm
2.7 to 3.3 mm
3.3 to 3.65 mm
5
Note!
- 10 -
Maximum fill level
Vibration feed unit
Spacing
Jaws
Baffle
Outlet channel
Chute plates
Vibration feed con-
tainer

6 Functional Principle
Functional Principle
The fully automatic GAV electronic blind riveting system consists of a supply unit and a practical
blind riveting gun, both connected by a flexible hose assembly.
The supply unit contains an electronic controller with dialogue unit, two hydraulic pressure
boosters, an electrical blind rivet feed unit and a spent mandrel evacuation system with spent
mandrel container.
The blind rivet made set in the nosepiece is processed when the riveting gun is triggered, the
spent mandrel is conveyed into the spent mandrel container and the next rivet is loaded auto-
matically.
The task of the vibration feed unit with automatic shut-down facility is to continuously feed in the
blind rivets.
GAV blind riveting gun
6
Compressed air
Oil - release stroke
Oil - setting stroke
- 11 -

7 Functional Description
Functional Description
7 Functional Components of the Blind Riveting Gun
The schematic diagrams and descriptions below illustrate the control and functional procedures
in simplified form.
Spreader nosepiece - 3-piece - (1)
Loads the blind rivet positioned in the gun head into the processing position.
Closing sleeve (2)
Locks and unlocks the spreader nosepiece (1).
Jaws (3)
Grasp the blind rivet mandrel (9) and set the blind rivet (10).
Jaw tube (4)
Transfers the closing pressure to the jaws (3) to securely grasp the blind rivet mandrel (9) and
set the blind rivet (10).
Stop piston (5)
End stop for blind rivet mandrel (9) while loading the rivet.
Lock spring (6)
Positions the blind rivet (10) in the gun head.
Pull piston (7)
Bears the complete gripping mechanism for setting the blind rivet (10).
Pressure piston (8)
Bears the closing sleeve (2) that locks and unlocks the spreader nosepiece (1).
7
- 12 -

7 Functional Description
Functional Description
7 Functional Assemblies of the Supply Unit
Blind rivet separator (II)
Component part of the blind rivet feed system. Here the blind rivets (10) are separated and fed
by compressed air via the feed hose to the blind riveting gun.
Hydropneumatic pressure booster (III)
Applies pressure to the pressure piston (8), thus initiating the release stroke of the spreader
nosepiece.
Hydropneumatic pressure booster (IV)
Applies pressure to the pull piston (7) to initiate the rivet setting stroke and to the back of the
pressure piston (8) to lock the spreader nosepiece (1) during the setting procedure.
Cylinder switches send control pulses for the switching operations as the piston system moves
back and forth in the pressure booster (IV).
Valve (V)
Activates the reset air to return the complete piston unit (7/8) to its initial position. Correspond-
ing pistons use the reset air applied until the riveting procedure is completed to hold the stop
piston (5), jaw tube (4) as well as the closing sleeve (2) in the hold or end position.
7
- 13 -

7 Functional Description
Functional Description
7 Functional Components of the Blind Riveting Gun
Functional diagram 1
The reset air initiated by valve (V) is applied and holds the complete piston unit (7/8) in the end
position. The closing sleeve (2) locks the segments of the spreader nosepiece (1) at their re-
cess. The jaw tube (4) keeps the jaws (3) closed on the blind rivet mandrel (9).
Functional diagram 2
When actuating the GAV device, the pressure booster (IV) applies a pressure to the pull piston
(7), to perform the rivet setting operation. The blind rivet is set. The reset air remains applied.
7
- 14 -

7 Functional Description
Functional Description
7 Functional Diagrams and Description
Functional diagram 3
The pressure booster (IV) continues applying pressure to the pull piston (7) so that it moves to
the rear end position. Valve (V) switches to vent off the reset air. The stop piston (5) and jaw
tube (4) are relieved and the jaws (3) release the blind rivet mandrel (9). The blind rivet feed air
is switched on by a control pulse at the pressure booster (IV), the blind rivet (10) in the separa-
tor (II) is loaded and the broken mandrel (9) is ejected.
Functional diagram 4
The lock spring (6) positions the blind rivet (10) in the gun head.
7
- 15 -

7 Functional Description
Functional Description
7 Functional Diagrams and Description
Functional diagram 5
The valve (V) releases the reset air and the pull piston (7) as well as the piston in the pressure
booster (IV) are reset to their initial position. At the same time, the pressure booster (III) applies
pressure to the pressure piston (8) to execute the release stroke for the spreader nosepiece (1).
The blind rivet mandrel (9) is taken up by the gripping mechanism and centred in the jaws (3).
Functional diagram 6
As the pull piston (7) moves back, the blind rivet mandrel (9) knocks against the stop piston (5)
so that the blind rivet (10) opens the spreader nosepiece (1) and assumes the processing posi-
tion. The pressure piston (8) executes the locking stroke for the spreader nosepiece (1) after the
pressure booster (III) relieves the pressure. Triggered by a switching pulse at the pressure
booster (IV) a further blind rivet (10) is set in the separator (II).
7
- 16 -