The Welding Robot

The welding robot is usually a 6 axes robot arm, that can move into tight corners. It does not require a large payload capability, but does need smooth movement without any jerks.

SPECIFICATIONS

Manufacturer: Panasonic

Model: TA 1000G2

Type: Welding Robot.

No. of Axes: 6

Max. Reach- Horizontal: 1055mm (41.53in.)

Max. Payload: 6kg(13.2lb)

Mounting: Table or fixture.

Weight: 145kg (319lb)

Repeatability: +/- 0.01mm ( 0.0004in.)

Speed: Axis 1 rotation can be  170degrees/second

Applications: Welding

The Panasonic TA 1000G2 Features

The Panasonic range of welding robots, feature a welding power supply and the robot arm, from the same supplier.

This arrangement makes for a situation where performance responsibility is not shared and technical risk is lowered.

The power supply is fully integrated with the robot controls and many features are unique to Panasonic. 

The Range of Robots Available

There are a total of 5 different reach robots available, from the TA 1000(1068mm reach) up to the TA 1900 ( 1895mm reach).

The Welding Power Supplies

Two models are available, the WG, which gives 350A at 35volts, 80% cv/60% pulse and the WGH is a 450A unit at 42 volts 100% cv/100% pulse.

Welding Process Capability

Several unique features are possible, including a process called SP-MAGII, that gives ultra-low spatter and heat input, ideal for thin plate and gap welding.

Standard Weld Cells

Standard Weld Cells

Panasonic offer a range of pre-engineered and assembled weld cells, that are complete with the robot, the weld power supply and all pre-wired with all the safety features built in.

The photo above shows the simplest model in the range, the PA55. This unit features a manual indexer to rotate the part into the cell and bring the finished part back to the operator. As with all the models available, all that is required, to complete the set-up, are fixtures to suit the part.

There are a total of 8-models in the range, up to and including a fully automatic double robot model.

This concept is extremely cost effective and if your part will fit into the work cell, I highly recommend you seriously take a look!

Please note that the above photos are from the Panasonic web site.

The ABB IRB 1600ID Welding Robot

SPECIFICATIONS.

Manufacturer: ABB

Model: IRB 1600ID

Type: Welding Robot.

No. of Axes: 6

Max. Reach- Horizontal: 1500mm (59.055in.)

Max. Payload: 4kg(8.8lb)

Mounting: Table or fixture.

Weight: 250kg (550lb)

Repeatability: +/- 0.02mm ( 0.0008in.)

Speed: Axis 1 rotation can be  180degrees/second

Applications: Welding

The Photo shows the ABB IRB 1600ID Robot.

The excellent feature of this robotic arm is the black plastic conduit, running along the arm, that houses all the cables required for welding, including the welding wire. As you can see, this makes for a very neat installation, with the bare minimum exposed to weld spatter and tangling!

This ABB video shows the cable packaging feature well and points out the advantages of this "Internal Dressing" (ID) package. Note that the wire feeder is mounted at the rear end of the horizontal arm.

Standard Weld Cells

ABB have a complete range of standard weld cells. from the simplest and most basic, to complete multi-robot cells for the more complex and larger parts.

The photo shows the simplest cell available the USC. This unit comes 100% complete. with the robot and all the safety features wired in. All that is required to complete are the weld fixtures to suit the part. The index table is manually operated.

Notes about Robotic Welding

Many welding robot applications grow out of manual applications and I have been involved in quite a few projects and have learnt a few points that I would like to pass on.-

  • The robot will not produce a better quality weld than the best manual weld.
  • The only way to check the quality of a weld is to destroy it and cross section the weld and polish it.
  • Please use an Argon gas mix, to reduce spatter and improve consistency of the welds.
  • Use an automatic nozzle cleaner and reamer.
  • Make the fit-up of the parts as good as you can, with minimum gaps and consistent geometry.
  • If the above points are followed, then a robot will give very consistent results and few rejects.

Please note that the above photos are from the ABB web site.





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