Robotic Welding Offline Programming: Inputs to Confirm

Freeze the cell and part baseline

Start with one part family and a revision manifest. Ask for the manufacturing CAD and the drawing that controls joint location and acceptance. Record part seating, clamp states, tack locations and assembly variation. A nominal joint drawn in CAD can occupy a different location once the frame is clamped. Ask the fixture designer to identify which datums and clamp conditions the program may assume.

Record robot and controller variants, firmware, application options and the simulation release. Include the mounted torch, guard openings, clamp travel and auxiliary equipment in the geometry review. Mark modeled obstructions and omitted items separately. If cables are represented only by a clearance envelope, record the envelope and plan an installed check in the limiting poses.

Further reading: ABB RobotStudio operating manual, station and controller workflow ↗

Tie the digital path to physical references

The tool center point (TCP) identifies the working point and orientation of the fitted torch. A work frame locates weld targets relative to the part or fixture. Record their identifiers, orientation conventions, reference features and who will check them at installation. A changed neck, mount or fixture location can invalidate an otherwise unchanged program. Keep the calibration record with the installed configuration.

For a positioner or track, document axis grouping, zero references, limits and whether motion is coordinated or indexed. Request a review of the entire route from approach to retreat, including reorientation, cleaning, clamp clearance, wrist configuration and recovery position. Relate any unresolved path constraint to the exact joint, fixture state and pose.

Further reading: Yaskawa Motoman, robotic welding concepts and TCP ↗

Prove the exported job and its dependencies

A postprocessor translates simulated instructions into files for a controller environment. Ask the integrator to identify its version and provide the exported job plus the instructions, frames, recipe calls and controller options it depends on. A test import or compilation should name the target controller configuration and log any unsupported commands, warnings or conversions. Agree who supplies licenses and who can regenerate the job later.

Map each weld ID to the approved process schedule and the station state that permits it. List signals for part present, clamped, positioner in state and welding equipment ready, plus the response to interruption and restart. Simulated I/O may be an assumption. Have the controls owner distinguish emulated states from hardware signals witnessed during commissioning.

Further reading: RoboDK, postprocessors and controller options ↗

Release the installed job with a recovery package

Use the site's approved commissioning procedure to verify alignment, clearances and state transitions on the actual cell. Run the agreed first-piece checks against drawing and process criteria. Record any site touch-up against its weld ID and cause. A frame correction, a changed torch angle and a change to the welding recipe have different downstream checks and approval owners.

At handover, retain the editable project or explicitly agreed source access, the released controller files, settings, linked recipes, calibration record and change log. State whether changes were reconciled into the editable model. Identify a restore owner and agree a safe verification method before relying on the backup for recovery or the next part variant.

Offline programming input and ownership matrix

Assign a named owner, revision and acceptance date to each row in your request for quotation.

Copy the rows into your RFQ or investment worksheet.