Widely applied in welding automation equipment, cam indexer is a high-precision intermittent motion mechanism whose performance directly influences production efficiency and equipment stability. Nevertheless, the service life differs greatly depending on the running environment; so, maintenance techniques directly influence long-term running expenses. This paper integrates engineering practice to investigate how to maximize the use and maintenance of cam dividers to lower general costs.
Main influencing elements of service life
Load parameters: High-frequency vibration and impact loads accompany welding equipment, and fatigue wear is prone on the contact surface between the roller of the cam divider and the cam curve. Studies have indicated that the lifespan may be cut by more than 50% when the load rises above the rated value by 20%.
Management of lubrication: Conventional grease lubrication is prone to breakdown in high-temperature welding conditions. Synthetic high-temperature grease or automatic lubrication systems help to extend the service life by thirty percent to forty percent.
Should the concentricity difference between the divider and the turntable be more than 0.05mm, eccentric wear will result and the service life will be much shortened.
Method of optimizing maintenance costs
By means of vibration sensors, early stage wear intervention, and avoidance of downtime losses resulting from unexpected failures, predictive maintenance (PdM) monitors the working state of the cam divider. A particular vehicle welding line's maintenance cost dropped 25% once this system was implemented.
Some manufacturers have introduced quickly replaceable cam modules in modular form, therefore cutting maintenance time from 8 hours to 1 hour and greatly lowering labor expenses.
Using solid lubrication coatings or oil air lubrication systems will help to extend the maintenance cycle from 500 hours to 2000 hours, particularly appropriate for heavy dust welding situations.
Novel Practice Cases
Using a ceramic covered cam divider, a novel energy battery box welding line extends the service life from three to five years while preserving the same accuracy. Simultaneously, the Internet of Things system tracks the lubrication state in real time, therefore lowering the average yearly maintenance cost by 18%.