How Robotic Screw Locking Workstations Can Increase Productivity And Quality In Multilayer PCB Manufacturing

How Robotic Screw Locking Workstations Can Increase Productivity and Quality in Multilayer PCB Manufacturing
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Printed circuit board (PCB) of all sizes are an indispensable part of many of the electronics we depend on every day. Compared with single-layer or double-layer type PCBs, multilayer PCBs have complex structures and their complicated production processes make them difficult to manufacture in a fully automated production line. 

Delta recently helped a PCB plant in China to improve production efficiency by introducing its original articulated robot and machine vision system for multilayer PCB screw locking. This plant manufactures various PCBs for downstream clients and during multilayer PCB production, operators had to do a labor-intensive screw locking process which increased working hours and resulted in lower quality from frequent errors. 

Delta’s team first did an on-site survey where they uncovered the customer’s needs to accelerate cycle time and improve wire trimming. To help meet these goals, Delta implemented its Articulated Robot DRV90L to the production line to help with screw locking. The new dual screw locking workstation allows both manual and robotic work, which lowers error rate and enhances while drastically improving productivity.

Because Delta’s Articulated Robot DRV90L is multipurpose it can be combined with multiple feeding units, quick changing units for lenses, and a servo screwdriver for real-time torque monitoring. During the process, the feeding units automatically elevate and feed the materials. 

Meanwhile, the Machine Vision System DMV2000 Series identifies materials and screw locking points with auto-calibration, then transmits this data to the Compact Modular Mid-range PLC AS Series for quick positioning. The AS Series then commands the Articulated Robot DRV90L to execute stable and quick pick-and-place and screw locking. 

When finished, the equipment will automatically notify the operator for manual board placing and wire trimming using a laser ranger for height measurement to prevent manual errors. The automation solution is a great enhancement to productivity and quality by lowering the defect rate of all manual work.

 

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