Welding Robot Cell Pre-Op Inspection

Pre-operation inspection for a welding robot cell, covering torch fixtures, interlocks, tip change, and shielding gas readiness.

Cell Area and Pre-Start Readiness

• Work area is clear of loose tools, scrap, and obstructions
  Inspect the robot cell, access paths, and operator station for trip hazards, loose parts, and material that could interfere with robot motion or safe access.
• Safety signage and cell boundaries are visible and intact
  Verify warning signs, floor markings, and guarded boundaries are present, legible, and not damaged or obscured.
• Adequate access to emergency stop devices and exit path
  Confirm emergency stop buttons and egress routes are unobstructed and accessible from the normal operator position.
• No visible damage to cables, hoses, or dress pack
  Check robot dress pack, power leads, grounding cable, and gas hoses for cuts, abrasion, kinks, leaks, or exposed conductors.

Torch Fixtures and Welding Hardware

• Torch fixture is secure and correctly aligned
  Verify the torch mount, bracket, and locating hardware are tight, undamaged, and positioned to maintain programmed weld geometry.
• Torch nozzle, tip, and diffuser are in serviceable condition
  Inspect consumables for spatter buildup, wear, deformation, or contamination that could affect arc stability or shielding gas coverage.
• Wire feed path and torch neck are free of obstruction
  Confirm the wire feed path, liner entry, and torch neck are not pinched, blocked, or misrouted.
• Tip change station or tip changer is ready for use
  Verify the tip change station is clean, accessible, and mechanically ready, with no missing parts or obvious damage.
• Correct torch consumables are staged for the job
  Confirm the correct tip size, nozzle type, and any required spares are available for the current weld program and material.

Interlocks, Guards, and Safety Circuits

• Door and gate interlocks engage properly
  Test that access doors, gates, and light curtains or other presence-sensing devices prevent hazardous motion when opened or interrupted.
• Safety relay or controller indicates normal status
  Confirm the safety system shows no fault, bypass, or muted condition that would reduce protective function.
• Emergency stop function verified
  Verify emergency stop devices stop hazardous motion and welding output as intended per site procedure.
• Bypass keys, overrides, or teach mode controls are controlled
  Confirm any bypass, override, or teach mode access is authorized, documented, and returned to normal operating condition before production.

Shielding Gas and Welding Process Readiness

• Shielding gas cylinder or bulk supply is connected and secured
  Verify the shielding gas source is properly connected, secured, and free from visible damage or leaks.
• Gas flow is within the programmed or specified range
  Record the shielding gas flow rate and confirm it is within the acceptable range for the current weld procedure.
• Gas hoses, fittings, and regulators are leak-free
  Inspect hoses, fittings, and regulators for leaks, loose connections, cracked components, or abnormal gauge readings.
• Weld program, wire, and polarity match the job setup
  Confirm the active robot program, wire type/size, and polarity match the work order or approved setup sheet.

Startup Verification and Signoff

• Deficiencies documented and communicated to responsible person
  Record any non-conformance, corrective action, and escalation path for items that failed inspection.
• Inspector signature
  Inspector confirms the pre-op inspection was completed and the cell is safe to release for operation, subject to any documented deficiencies.