PGN-plus-P

Gripping force maintenance version AS/IS

The mechanical gripping force maintenance device ensures that a minimum clamping force will be applied even if there is a drop in pressure. In the AS version this acts as a closing force, and in the IS version as an opening force. The image shows the AS version. The gripping force maintenance can also be used to increase the gripping force or for one-way gripping.

1

Multi-tooth guidance

2

Base jaw

3

Bracket for sensors

4

Housing

5

Centering and mounting possibilities

6

Wedge-hook design

7

Piston

8

Gripping force maintenance

Settings of the control cams during monitoring with inductive proximity switches

Monitoring with inductive proximity switch can be performed as standard from size 64. In delivery state, the positions "gripper open" and "gripper closed" are preset with the control cams. The inductive sensors must be ordered separately and are slid into the housing up to the stop and clamped.
In order to monitor any other position, such as "workpiece gripped" for example, both control cams can be individually set in the respective base jaws.

1

Control cam preset for "gripper closed" position

2

Control cam preset for "gripper open" position

3

Holder with clamping screw for fixing the sensor

4

Clamping screw for process-reliable fixing of the adjusted switching point

5

Adjusting screw for setting any switching point

Optional mounting possibility under the cover sheet for customer-specific additional structure

In delivery state, a cover sheet is mounted to the gripper. This can be removed if necessary. Under the cover sheet are threads and fittings for mounting customer-specific designs for implementing additional functions.

1

Additional centering or support of the workpiece

2

The cover plate (can be removed)

3

Ejector with external cylinder attached to the gripper

Centering and mounting options for gripper assembly

The gripper can be installed on two sides and in three screw directions. This allows universal and flexible mounting of the gripper in all conceivable arrangements.

Pneumatic connections for the power supply

The gripper can be flexibly supplied with compressed air on three sides.

1

At the front via the main air connections A and B by means of air connections and pneumatic hoses. Air purge can be optionally created via S.

2

At the bottom via direct connections a and b by means of hose-free direct connection. The pneumatic supply is then provided via the adapter plate.

3

At the rear side via direct connections a and b by means of hose-free direct connection. The pneumatic supply is then via the adapter plate. Air purge can be optionally created via s.

Sectional diagram of gripping force maintenance version AS

1

Multi-tooth guidance
Maximum service life due to lubricant pockets in the robust multi-tooth guidance, and absorption of high forces and torques by means of the large guidance support

2

Base jaw
with standardized screw connection diagram for the connection of the workpiece-specific gripper fingers

3

Bracket for sensors
Brackets for proximity switches and adjustable control cams in the housing

4

Housing
is weight-optimized due to the use of high-strength aluminum alloy

5

Centering and mounting possibilities
for universal assembly of the gripper

6

Wedge-hook design
for high power transmission and minimal wear as a result of larger diagonal pull surfaces

7

Piston
Maximum force through maximum surface of drive piston

8

Gripping force maintenance
The mechanical gripping force maintenance device ensures that a minimum clamping force will be applied even if there is a drop in pressure.