25Years Celebrating
Back Spotfacing & Counterboring Tool
BSF
The BSF tool back spotfaces or back counterbores in one operation without turning the workpiece
Counter Bores Up to 2.3xd
Robotic Welding BSF Counterbores up to 2.3xd
during routine pauses in the robotic welding operation. The goal of this cleaning action is to help ensure consistent shielding gas coverage, and with it, reduce weld defects, expensive rework and lost productivity. A nozzle cleaning station also helps extend the life of consumables, minimizing the downtime and expense for changeover. For the best results, the nozzle cleaning station should be mounted in close proximity to the robot to reduce the amount of time necessary for its arm to reach it. Companies can mount the peripheral overhead if need be. The robot should be programmed to clamp onto the nozzle cleaning station at a taught position exactly perpendicular to the cutting blade that clears out the spatter or other debris. Any misalignment to the position of the nozzle could lead to partial cleaning of the nozzle and excessive spatter build- up. Program the robot to go to the nozzle cleaning station as often as possible; the cleaner the consumables are, gener- ally the better performing and longer lasting they will be. For companies who choose to attach an anti- spatter sprayer, it’s important to locate the spray in the appropriate position so it completely coats the inside of the nozzle. Ideally the outside should be covered to within three-quarters of an inch from the bottom of the nozzle. Other peripherals that companies can integrate into their robotic welding system include a wire cutter and a neck inspection tool. A wire cutter cuts the welding wire to a speci- fi ed length, removing any inconsistencies at the end, providing for more reliable and smoother arc starts and better seam tracking for robots featuring that technology. For companies using touch-sensing software, using a wire cutter in conjunction with a robotic MIG gun featuring a wire brake can help prevent problems with seam tracking. Touch sensing allows the robot to store position data and send electrical impulses back to the controller once it has located the joint. For applications that have slight variations in parts, touch sensing helps maintain weld consistency. It is also more cost-effective than investing in new
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82
ManufacturingEngineeringMedia.com | October 2014
In a successful robotic welding operation, speed at which parts are delivered and welded require that parts enter and leave the cell at a quicker and steadier rate—without bottlenecks—to gain optimal throughput.
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