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Motoman Robots Arc Welding

ACS-042.jpgRound Baler Pickup Frames for Agricultural Equipment

Rollover device provided critical capability to tack-weld parts in the proper orientation. Motoman’s solution met customer’s performance expectations.

Project Challenges

  • Weld two sizes of frame assemblies – 1.22-m and 1.52-m (4' and 5') – and six types of sub assemblies in sizes from 0.55-m to 1.52-m (1.8' to 5').
  • Allow fixture in the load station to be rotated and tack-welded during the load sequence.
  • Provide ability to manually tack-weld components during loading.
  • Meet cycle time of 18.9 minutes per part.

Motoman Robotics Solution

Motoman Robotics provided an ArcWorld II-6220-XHD DR2C system including the following:

  • Two Motoman UP20-6 robots with XRC controllers in DR2C (dual robot control) configuration. Two 765-mm (30") robot base risers included.
  • MRM2-750TX dual ferris-wheel type headstock/tailstock positioner with a 750-kg (340-lb.) payload; 1,050-mm (41.3") load height; and 3-m (118.1") span between the HS/TS faceplates, and 7-second index time. Includes manual jog feature.
  • Operator control station with load side jog switch.
  • One set of 1,220-mm (48") light curtains.
  • Two MotoWeld P500 GMAW power sources.
  • Two Motoman 500-amp, air-cooled Tough Gun® GMAW torch packages
  • Expanded Memory module for XRC.
  • Two ComArc seam-tracking and touch-sensing packages.
  • Two reamer nozzle cleaning stations with wire cutters.
  • Two accessory stands.
  • Common equipment base.
  • Two sets of Customer supplied fixtures, including self-contained relay controls for pneumatic clamps.
  • Servo-driven rollover device – mounted on pneumatic slide. Includes manual jog capability (allows load station HS/TS to be manually jogged using control switch at operator station).
  • Integrated safety package, including light curtains, arc curtains, and wire fencing.

Fixtures/Tooling Details

The customer provided two sets of fixtures for two different models. Multi-stage fixtures include both manual and pneumatic clamping. Manual tack-welding performed at various points in the sequence.

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