Aluminum Welding Robot for Aluminum Alloy Fuel Tank with MIG
Aluminum welding robot for aluminum alloy fuel tank description
1. By taking measures, the aluminum welding robot can be used for
mass production of heavy truck fuel tanks. The application of the
welding robot greatly improves the level of the process equipment
of the fuel tank production, and can realize the unmanned automatic
welding of the annular seam of the aluminum alloy fuel tank of
various cross sections and various specifications.
2. The heavy - duty fuel tank uses robotic pulsed MIG welding,
which has high repetitive positioning accuracy of the welding
torch, easy adjustment of the welding gun posture, convenient
trajectory setting, simple calling of welding process parameters,
high production efficiency and stable and reliable product quality.
3. The maintenance of the welding robot is very important. In order
to reduce the failure, improve the working efficiency of the robot,
and stabilize the quality of the product, the robot should be
regularly maintained and maintained.
Aluminum welding robot common problem and reason
At the beginning of the welding technology of aluminum alloy
robots, the welds of the robots are often black and yellow, and the
surface of the black welds cannot be cleaned. The surface of the
welds is more impurities, which seriously affects the appearance of
the fuel tank and lead to a decrease in the sealing performance of
the weld. This problem is mainly caused by the following reasons.
1. The welding gun posture is not appropriate. The normal weld seam
of MIG welding is very bright, and there is no blackening or
yellowing on the surface. MIG automatic welding has strict
requirements on the angle of the welding torch. The change in the
angle of the torch affects the formation of the weld and the
surface quality of the weld. When welding at different locations,
the characteristics of different droplet transfer modes, as well as
the characteristics of the formation and solidification of the
molten pool should be considered. Corresponding process tests
should be carried out for different products.
2. The purity of argon is insufficient or the moisture content
exceeds the standard. Since the thickness of the aluminum alloy
fuel tank plate is between 1 and 3 mm, the MIG welding and welding
plate often uses pure argon gas as the shielding gas. When the pure
argon gas is used, the welding arc is stable, the droplet transfer
is stable, and the weld seam is not splashed. Studies have shown
that the higher the purity of argon, the better the protection
effect. It is verified that the purity of argon gas in aluminum
alloy fuel tank welding must reach 99.99% or more. When the
moisture and impurities in the gas exceed the standard, the
probability of defects in the weld seam is greatly increased, the
surface impurities of the weld are increased, yellowing and
blackening occur, and the overall performance of the weld is also
reduced, so the aluminum alloy fuel tank Argon is a key controlling
factor in welding, and argon suppliers must have a complete quality
3. Oil stains, dust, etc. exist on the surface of the weldment.
Since aluminum alloy MIG welding is sensitive to oil stains, dust,
etc., oil stains and dust on the surface of the weldment must be
carefully cleaned before welding. Chemical cleaning or mechanical
cleaning can be used. After cleaning, the area to be welded should
be protected from secondary pollution. Welding is carried out
within 8 h, otherwise it will be cleaned again. A good weldment
surface is a prerequisite for obtaining a quality weld.
4. The welding wire is contaminated or the impurities are exceeded.
Since wire cleaning is very cumbersome, the quality of the wire is
generally controlled by the manufacturer. The key to the user's
production is to prevent contamination of the wire after unpacking.
The wire should not be exposed on the production site. The wire
should be placed in a dry, dust - free wire spool. The wire should
be stored to avoid moisture and contamination. Wire storage room.
Strict control of indoor temperature and humidity, direct quality
of welding wire, the quality of the weld is also a key control
factor in the welding of aluminum alloy fuel tanks.
Porosity on the surface of the weld
Porosity is the most common type of defect in aluminum alloy fuel
tank MIG welding. The vent hole not only reduces the tightness of
the weld, reduces the bearing area of the joint, but also reduces
the strength and plasticity of the joint, especially the cold bend
angle and impact toughness, and must be prevented. By taking the
following measures, the probability of occurrence of pores is
1. To ensure the gas quality, the purity of argon gas is required
to be more than 99.99%, and the argon gas supplier with reliable
quality is selected to eliminate the spatter at the nozzle of the
welding gun in time to protect Uniform airflow, windshield in the
welding zone to prevent air from invading the welding zone.
2. Carefully clean the oil, dirt and oxide film on the surface of
the weldment before welding.
3. Reduce the fit of the weldment, the fuel tank end cover and the
cabinet must be tightly matched. The fit clearance exceeds o. After
5 mm, the weld is more prone to defects.
4. Appropriately reduce the arc length.
5. Maintain a reasonable distance between the nozzle and the
Aluminum welding robot body specification
|Robot model||GNS1400W - 06|
|Mounting||Vertical ground installation, lifting, hanging|
|Number of axes||6|
|Max working radius||1400mm|
|Repeated posiontioning accuracy||0.03mm|
|Maximum joint range||J1||RV reducer ±160°|
|J2||RV reducer +110°, -70°|
|J3||RV reducer +65°, -120°|
|J4||RV reducer ±150°|
|J5||Hollow harmonic reducer +105°, -110°|
|J6||Hollow harmonic reducer ±320°|
|Maximum joint speed||J1||RV reducer 201.9°/S|
|J2||RV reducer 198.3°/S|
|J3||RV reducer 198.3°/S|
|J4||RV reducer 296.2°/S|
|J5||Hollow harmonic reducer 197.5°/S|
|J6||Hollow harmonic reducer 247.2°/S|
|Allowable bending moment N.m||J4||RV reducer 9.8N.m|
|J5||RV reducer 9.8N.m|
|J6||Hollow harmonic reducer 4N.m|
|Allowable inertia Kg.㎡||J4||RV reducer 0.3kg.㎡|
|J5||RV reducer 0.3kg.㎡|
|J6||Hollow harmonic reducer 0.05kg.㎡|
|Body total weight||KG||185KG|
|Operating environment||Temperature||0℃ - 45℃|
|Humidity||20% - 80%|
Keep away from corrosive gases or liquids or explosive gases,
Keep away from water, oil, dust
Keep away from source, magnetic field, high frequency signal source
|Power capacity||6KVA (Robot) + 24KVA (Welding source|
Aluminum alloy fuel tank welding effect
Aluminum welding robot detail picture