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Dobrodošli u Adria Manipulatorji vodećem slovenskom proizvođaču pneumatskih strojeva za rukovanje teretom.
The pneumatic operating principles of the two types of manipulator are the same, the substantial difference is of the mechanical type:
the pneumatic manipulator with rope allows the handling almost exclusively of loads whose center of gravity is in line with the ropes
the pneumatic manipulator with arm also allows the handling of loads whose center of gravity is moved forward with respect to the vertical axis of the joint which connects the manipulator arm to the gripping equipment
To simplify, the arm manipulator is to the cable balancer what the forklift is to the electric hoist.
This advantage of the arm manipulator, which makes it indispensable in certain applications, becomes a disadvantage in terms of manipulator price and speed of movement.
So the advice is to use the industrial manipulator when indispensable and the cable balancer in all other cases.
If we only look at the price aspect of pneumatic manipulators, the answer is that it is almost always cheaper to buy 2 machines.
Frequently there are technical reasons why the customer makes, with good reason, the opposite choice:
when the load must be moved in the entire work area reachable by moving the manipulator along runways, and not only in the area swept by the arm
if the columns are a hindrance to normal operation
if there are already anchor points suitable for supporting the runways, as almost always happens in assembly lines in the automotive sector
in case of handling very bulky objects that could easily interfere with the manipulator column
the presence of a floor that is not suitable for supporting the manipulator column, which we recall transmits considerable bending stress to the floor
Air has two fundamental characteristics, the speed of diffusion and compressibility.
The speed allows to adapt volumes and pressures of air to the changes in an almost instantaneous way, for example the operator performing the ascent operation determines the expansion of a cylinder chamber and the air instantly fills the additional part of the volume in an instantaneous way at the same time maintaining the pressure necessary to balance the load supported by the pneumatic manipulator.
The feature of compressibility means that the manipulator still follows the movements of the operator, whatever the ascent and descent command of the load. In this way the operator is never prevented from making position adaptation movements, as occurs instead with the better known electric hoist.
Compressed air machines also require very little maintenance and have a very long working life. We add that compressed air is a source of energy that is practically always available at any point in a normal production plant.
Pogledaj prilog
If the gripping tool is a pliers or a magnet activated by compressed air, the minimum pressure device has certainly tripped.
How to proceed to unlock the ascent and descent of the arm?
1 - check the supply pressure of the compressed air by reading the value on the pressure gauge on the filter-regulator unit
2 - if the pressure is decidedly lower than the expected 7 bar, it is necessary to restore the pressure value to 7 bar
3 - if, on the other hand, the indicated supply pressure is regularly 7 bar, proceed again with the calibration of the minimum pressure device, which is certainly set at too high a value. This adjustment value can be read on the pressure gauge protruding from the pneumatic control unit, bearing the indication "minimum pressure" or more briefly "minimum p". To adjust the aforementioned device, read the instructions given in the manual of the Manibo pneumatic manipulator.
If the manipulator gripping tool has suction cups, the blocking of the arm ascent and descent is certainly due to the safety device which prevents the arm from rising or falling, in the event of insufficient vacuum level.
How to proceed to unlock the ascent and descent of the arm?
1 - read the indicated vacuum level on the vacuum gauge located on the left of the handle
2 - if the vacuum value is lower than -0.55 bar (for example -0.4 bar) it is necessary to find the cause for which the vacuum level is lower than the required level of -0.55 bar.
The causes of the low vacuum level can be:
to . leak in the suction cups
b. leak of pipe n° 21 which connects the suction cups to the vacuum tank
c. low vacuum level generated, in this case read the instructions in the Manibo manual on how to restore a higher vacuum level
3 - if the vacuum level is higher than -0.55 bar (for example -0.7 bar) the cause that blocks the manipulator arm is the device against lifting the load. Evidently the required vacuum level is higher than necessary. Proceed with a new calibration of the device following the instructions given in the Manibo manual.
If the arm ascent and descent command is of the balanced type, i.e. the ascent and descent of the arm takes place by pushing in a state of absence of gravity, the minimum pressure device has tripped again, whatever the `gripping equipment, hook, clamp, magnet or suction cup.
Proceed as already indicated in the presence of a pneumatic gripper or magnet activated by compressed air.