Efficient Component Placement Control with SEHO AssemblyCheck 

SEHO Systems GmbH, a worldwide leading manufacturer of complete solutions for soldering processes and automated production lines, ensures higher productivity in electronics production with flexible and innovative concepts. With SEHO AssemblyCheck, a component placement control system optimized specifically for THT assemblies, defects are avoided before they disrupt the process flow and cause costs. 

THT components are often assembled manually or semi-automatically, so the risk of errors is correspondingly high. SEHO AssemblyCheck is integrated directly into the assembly workstation and provides immediate feedback whether the components are assembled correctly. Only then can the circuit board be released for further processing in a wave or selective soldering system. This eliminates possible errors, which leads to a significant increase in quality and yield. 

SEHO AssemblyCheck generally checks for the presence of the correct components, polarity, component colours are recognized and compared. Further inspection tasks include text verification (OCV), orientation and code reading. Circuit boards with a bad mark marking are automatically recognized and not checked. 

Short cycle times and an assembly size of up to 610 x 510 mm [24” x 20”] guarantee high system efficiency. 

To reduce investment costs when there are several workstations, the SEHO AssemblyCheck can also be used inline. The combination with the THT-AOI system SEHO PowerVision offers maximum ROI: both systems are integrated in just one module that is installed in front of the soldering system.  

At the assembly transport level, AssemblyCheck checks for correct component placement. Incorrectly assembled circuit boards can be automatically removed from the line, while defect-free assemblies are released for the further process. After the soldering process, SEHO PowerVision carries out the solder joint inspection at the return conveyor level of the module.