Checking contacts on RoDips

June 2024

#Predictive maintenance #Innovation #Digitalization #Condition monitoring

Project's goal

Temperature monitoring at contacts using thermal cameras

Results

Online thermodiagnostics el. conveyor contacts in the M18 paint shop (Mladá Boleslav). Outlet temperatures are transmitted directly to the operation visualization.

Solution description

The RoDip rotary conveyor is a conveyor system that carries the body with the skid into the KTL color tub, where cataphoresis occurs by total immersion and rotation up to 360 degrees. Prior to the installation of this inspection, there was a big problem with excessive heating and burning of the internal parts of the contacts (contact resistance, destruction of the component, production stoppage and risk of fire).


As part of the PoC (Proof of concept), the ŠA (FabLab) employees tested a solution with a positive result, where FLIR AX8 thermal cameras were deployed. These cameras have a relatively good processing response and have provided us with the ability to capture values directly as we drive through.  The cameras have the ability to read the maximum, minimum and delta temperature in two definable zones in the image. These cameras are relatively robust and have an IP 67 rating.

In cooperation with the maintenance of paint shop B, we have taken the path of internal implementation. After agreeing on the installation site and ordering the necessary hardware, we installed the brackets, thermal cameras and other hardware. We connected power and Profinet to the cameras and ensured the connection. After connecting and commissioning the cameras, we set the necessary limits and implemented the output signal into the operation visualization.

The operation now has the ability to monitor the current temperature of the contacts on the visualization, and at the same time it is another predictive maintenance diagnostic system that complements the existing one. In this way, paint shop maintenance tries to prevent future problems. 

 

Benefits and Details

  • Reducing the risk of downtime;
  • Reducing the risk of scrap car bodies
  • Digitization of the process

Project solvers

Tiered list image

Ing. Lukáš Oplt

E-mob maintenance strategy and concept

Tiered list image

Ing. Lukáš Procházka

Component Test Specialist

Tiered list image

Martin Gottwald

Planning of paint shop MB

Tiered list image

Ing. Vladislav Andronov

Project Coordinator of Smart Maintenance

Tiered list image

Marek Salva

Electrics Designer

Tiered list image

Martin Šabat

Predictive maintenance