HGPT−...−B
Festo AG & Co. KG
Postfach
D−73726 Esslingen
++49/711/347−0
www.festo.com
(en) Operating instructions
756232
1010a
Original: de
Warning
During commissioning and operation:
Moving loads can injure persons and damage items in the positioning range of
the gripper fingers (crushing).
· Make sure that, in the gripping area:
no one reaches between the gripper fingers,
and there are no foreign objects (e.g. by means of a protective guard)
When venting (without gripping force backup):
· Make sure that the gripper is not holding an effective load.
In this way you can prevent a workpiece mass from falling down suddenly.
When dismounting the piston cap:
High spring forces throw the piston cap on the HGPT−...−G outwards
(danger of injury,
· Take into account that the piston cap is preloaded to 700 N.
Note
Installation and commissioning are to be carried out only by qualified personnel
in accordance with the operating instructions.
1
2
3
4
5
7
8
6
9
Fig.1: Control sections and connections
1
Function and application
When the compressed air supply ports
3
and
4
are pressurized alternately, an
internal piston moves backwards and forwards. A mechanism transfers the
movement of the piston to the gripper jaws
7
, to which gripper fingers are
fastened.
The opening and closing action of the gripper fingers enables them to grasp
effective loads by their outer or inner contour (double−acting). The HGPT−...−F
hasdouble gripping force with half gripper jaw stroke. In combination with the
integrated spring return, the HGPT−...−G... can also be operated in single−acting
mode and for gripping force backup. If the gripper is vented, this spring returns the
gripper jaws and pistons to their initial position:
Gripper fingersopened
with HGPT−...−G1
Gripper fingersclosed
with HGPT−...−G2
The parallel gripper HGPT−...−B is intended for gripping and holding effective loads.
2
Requirements for product use
· Compare the limit values specified in these operating instructions with those of
your actual application (e.g. pressures, forces, torques, temperatures, masses,
speeds). Only compliance with the load limits allows operation of the product in
compliance with the relevant safety regulations.
· Take into consideration the ambient conditions at the location of use.
Corrosive environments (e.g.ozone) will reduce the service life of the product.
· Make sure that the compressed air is properly prepared (
è
Technical data).
· Maintain the selected medium for the complete service life of the product.
Example: Always use unlubricated compressed air.
· Pressurise the complete system slowly. This will prevent uncontrolled move
ments from occurring. For slow start−up pressurisation, use on−off valve HEL.
· Comply with national and local safety law and regulations.
· Remove all transport packaging such as foils, caps and cartons (except for any
plugs in the pneumatic connections).
The packaging is intended for recycling (except for: oiled paper = other waste).
· Use the product in its original condition. Unauthorised product modification is
not permitted.
· Note the warnings and instructions on the product and in the relevant operating
instructions.
· Take the tolerance of the tightening torques into account.
Unless specified otherwise, the tolerance is±20 %.
· Take into account the weight of the product. It weights up to 6.5 kg.
3
Mechanical installation
Note
Excessive tightening torques during
mounting will damage the gripper
mechanism.
· Make sure that the maximum
permissible tightening torques are
not exceeded.
· Observe the maximum permitted
values for the following
characteristics (
è
Technical data):
Force Fz
Torques Mx, My and Mz
Fig.2
Mounting the gripper fingers
1. Position the gripper fingers with the
centring sleeves on the fitting hole
7
/
8
of the gripper jaw.
2. Fasten the gripper fingers with two
fastening screws each to the
threaded holes
aJ
/
aA
.
Please refer to the following table for
the characteristics.
7
8
aJ
aA
Fig.3
HGPT−...−B
16
20
25
35
40
50
63
80
Fitting hole dia. [H8]
7
[mm]
5
5
7
7
7
7
9
Fitting hole dia. [H8]
8
5
5
7
9
9
9
12
15
Screw
aJ
M2
M3
M3
M5
M5
M5
M5
M6
aA
M3
M3
M4
M5
M6
M6
M10
M12
Tightening torque
aJ
[Nm]
0.6
1.2
1.2
5.9
5.9
5.9
5.9
9.9
g
g
q
aA
1.2
1.2
2.9
5.9
9.9
9.9
47
82
Fig.4
If proximity sensors are used:
· Observe the following points:
Interference caused by ferritic parts
(e.g. by fastening screws made of ferritic steel)
Possibly protruding proximity sensors.
When sensing both piston end positions:
· Push both proximity switches into separate slots
5
.
· Make sure there is sufficient room for the connection elements.
Mounting the gripper:
· Fasten the HGPT−B as follows:
1. Press two centring pins
aC
or
centring sleeves into the fitting
holes.
2. Place the gripper on the connecting
surface.
3. Screw in the screws
aB
/
aD
for
fastening.
The characteristics can be taken
aB
aD
aC
The characteristics can be taken
from the following table:
Fig.5
