Festo HGPT-...-B Series, Operating Instructions

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HGPT−...−B 16 20 25 35 40 50 63 80
Fitting hole dia. centring pin [H8]
aC
[mm] 2 3 4 4 5 6 6 8
Fitting hole dia. centring sleeve [H8] [mm] 5 5 7 7 9 12 12 12
Screw for mounting:
from above
aB
M2,5 M3 M4 M4 M5 M6 M6 M8
from below
aD
M3 M4 M5 M5 M6 M8 M8 M10
Tightening torque
aB
[Nm] 0.8 1.2 2.9 2.9 5.9 9.9 9.9 24 g g q
aD
[Nm] 1.2 2.9 5.9 5.9 9.9 24 24 47
Fig.6
4 Pneumatic installation
Note
Contamination in the connections can impair functioning.
· Ensure that there are no dirt particles or foreign objects in the connections
and tubing of the HGPT−B.
· Check whether an HGL non−return valve is required. In this way you can prevent
the effective load from sliding down if there is a sudden drop in pressure.
· Connect the tubing of the HGPT−B to the compressed air supply ports
( è Technical data).
Gripping type External gripping Internal gripping
Connection
3
(Fig.1) Open Close
Connection
4
(Fig.1) Close Open
Connection
2
/
9
(Fig.1) Sealing air (max 0.5 bar)
Fig.7
If using long and heavy gripper fingers:
· Use a one−way flow control valve GRLA directly in the compressed air supply
ports. These determine the opening and closing time (and therefore the bearing
loading) of the gripper fingers.
If short and light gripper fingers are used, the built−in restrictors of the HGPT−B
eliminate the need for an additional, external restrictor.
5 Commissioning
Note
· Observe the permitted values ( è catalogue specifications) for:
the maximum gripping force (dependent on the holding force and holding
point)
the permissible applied load of the gripper fingers depending on the opening
and closing time.
The applied load of the gripper fingers should have been calculated.
Setting the opening/closing time for long and heavy gripper fingers:
· First, tighten the flow control screws of the upstream GRLA
completely,
then loosen one turn.
· Start a test run using the specified sequence:
Test run Tests
Without effective load Correct assignment of the compressed air supply ports
Permitted gripper speed
Secure function of the proximity sensors
With effective load Secure holding of the effective load
Fig.8
1. Listen to the impact of the piston:
Piston impact: soft Piston impact: hard
Continue test run with steps 2 and 3
Screw in the flow control screw one turn.
The maximum gripper speed is reached.
Finish the test run
Fig.9
2. Unscrew the flow control screws of the upstream GRLA one turn.
3. Repeat steps 1 and 2 until the desired gripper speed has been reached.
4. Finish the test run.
5. Vent the gripper.
6 Operation
· Avoid the HGPT−B coming into contact with the following:
corrosivecoolants
grinding dust
glowing sparks or chips. These could destroy the HGPT−B.
7 Service and maintenance
· Grease the HGPT−B after 5 million switching cycles at the lubrication nipple.
Permitted grease is Molycote BR2 plus (if necessary, screw the accompanying
lubrication nipple into the port
2
or
9
).
· If necessary, clean the exterior of the HGPT−B with a soft cloth.
Permitted cleaning agent is soap suds, max. +60 °C.
8 Removal and repairs
Warning
When the HGPT−...−G... is being
dismounted, high spring forces throw
the piston cap outwards (danger of
injury).
· Take into account that the piston
cap is preloaded to 700 N.
Fig.10
· Vent the system and the device for disassembly.
· Recommendation: Return the product to our repair service.
This ensures that special attention will be paid to the necessary fine
adjustments and inspections.
· Information on spare parts and aids can be found under:
www.festo.com/spareparts
9 Accessories
Note
· Select the appropriate accessories from our catalogue
www.festo.com/catalogue
10 Eliminating malfunctions
Malfunction Possible cause Remedy
Gripper cannot
hold load firmly Supply pressure too low Increase supply pressure
(up to max. permitted value)
hold load firmly
Gripper fingers hold the
workpiece too far outwards Move the holding point inwards
Mass too large Select larger gripper
Proximity sensor
does not show Proximity sensor not adjusted Check position and calibration of the
proximity sensor
does not show
gripper status
Wire break Replace proximity sensor
Gripper does
/
No compressed air Check the compressed air supply ports pp
not open/close
Gripper defective Send the HGPT−B to Festo
Fig.11
11 Technical data
HGPT−...−B 16 20 25 35 40 50 63 80
Mode of operation Double−acting parallel gripper
Operating medium Filtered compressed air, lubricated or unlubricated
Mounting position As desired
Operating pressure [bar] 3...8 p g p
G... [bar] 4...8
Pneumatic connection M3 M3 M5 M5 M5 G
Á
G
Á
G¼
(Tightening torque) [Nm] 1.2 1.2 5.8 5.8 5.8 7 7 12
Stroke per gripper jaw [mm] 3 4 6 8 10 12 16 25 p g pp j
F [mm] 1.5 2 3 4 5 6 8 12.5
Ambient temperature [°C] +5...+60
Storage temperature [°C] 20...+80
Maximum force on gripper jaw
Fz static
[N] 200 700 1200 1800 2500 3200 5000 7000
Maximum torque on gripper jaw, static
Mx [Nm] 10 15 50 80 100 120 160 180
My [Nm] 12 15 45 60 90 120 180 220
Mz [Nm] 6 8 35 50 75 100 140 170
Max. length of gripper finger [mm] 40 45 60 70 75 100 120 140
Repetition accuracy [mm]
.
0.03
.
0.04
.
0.05
Max. interchangeability [mm]
.
0.2
Material information
Housing, cover Anodised aluminium
Screws, end cap Stainless steel
Gripper jaw Hardened steel
O−ring, piston seals Nitrile rubber
Product weight [kg] 0.09 0.14 0.27 0.49 0.82 1.40 2.71 4.75 g
G... [kg] 0.1 0.16 0.35 0.57 1.08 1.83 3.56 6.29
Fig.12