Setting a new benchmark in product inspections

August 08, 2022

With today’s increased consumer demand, the manufacturing market has become more competitive than ever in trying to produce safer and more efficient products.

Setting a new benchmark in product inspections

Defective parts will be rejected by the end customer, so performing robust inspection becomes a must. Identifying process defects within plastic parts can be very challenging, and can only be achieved through deploying highspeed, precise machine vision systems.


Applied Robotics, based in Sydney, has been building automation machine systems for over 35 years with over 1000 system installations worldwide. Founded by Dr Paul Wong in the 1980s, the company is now a leading supplier of innovative automation and robotics systems. Applied Robotics, as a system integrator for Omron, has been using Omron products for many of its applications. For of its major projects. the company used Omron’s One Total Solution for a quality control (QC) machine.


The team at Omron’s Sydney office collaborated on the project, which entails the detection of defects in a small moulded plastic component and the discarding of all faulty items. The products include Omron’s FH high precision vision system, an Adept eCobra 350 SCARA robot, 1S servos and drives, NY IPC with HMI, NJ machine automation controller with database connectivity and Omron’s uninterruptible power supply.


The FH Vision system features a compact camera that can capture high-sensitivity and high-resolution images at very high speeds, without complex programming.


Fast QC inspection time with little human intervention

Using Omron’s Shape Search III algorithm, this system measures and detects faults in the plastic workpiece. Each image is immediately processed and the results data displayed and logged for traceability.


For this project four cameras are utilised to make hundreds of measurements in a cycle time of less than 5 s per part. Omron’s NYP industrial PC was used to provide visualisation, data handling, measuring and control, combining the functionality of box IPC and industrial monitor. The eCobra 350 SCARA robot makes this machine highly autonomous. It provides high-performance transfer and handling of the small plastic parts with user-friendly interface software. It includes an Adept SmartController motion controller with an 8 kHz servo update rate to improve path following and control.


Reliability and speed would not be possible with human eyes

This integrated solution is said to be the industry’s first QC machine that improves reliability through continuous operation. It has little human intervention and a fast QC inspection time of only 5 s per part. This reliability and speed would have not been possible with human eyes.


“This project has seen some great ingenuity used, through the combined efforts of the Applied Robotics and Omron Engineering teams. It helps keep Australian manufacturing at the forefront in today’s competitive world by utilising up-to-date automation technology,” an Omron Oceania spokesperson said.


Overall, the system improves efficiency of detection and gathering QC data stored in a database on the fly, which is not possible with a human process. The team will continue to improve the overall performance of the machine through testing.


“We are very pleased with Omron products and also the service from the Omron support team and engineers,” said Dr Wong.


“The wide Omron product range makes them an ideal single source for the components of a multifunctional machine: basically, a one-stop shop for the vision system, the OCR cameras, the robot, the PLC, the PC, the servo systems and the safety controller.


“As these machines will be shipped to clients all over the world, including the USA, Europe and Japan, utilising Omron solutions means that we can simply ‘plug in’ to Omron’s established service and support system worldwide.


“Overall, we are very happy with the outcome of the project and, as always, we are here to develop and commercialise leading-edge robotic systems worldwide.”


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