As a key equipment in the field of profile processing, the stability of the power supply circuit and the reliability of the safety device of the double head profile machining center directly determine the machining accuracy and operational safety. It is crucial to standardize the process of power line inspection and safety device reset to ensure the smooth operation of equipment and avoid safety risks.
The inspection of power lines should follow the core principle of "power off first, then troubleshooting, and then testing" to ensure safe operation and accurate inspection. Before inspection, it is necessary to disconnect the main power supply and each branch power supply of the equipment, hang a warning sign "under maintenance, no closing", and wear protective equipment such as insulated gloves and shoes to avoid the risk of electric shock.
The line inspection starts with the appearance, checking the main power supply incoming line, branch power supply line, and internal wiring terminals of the equipment one by one. Pay close attention to whether the insulation layer of the wire is damaged, aged, or cracked, and whether the wiring terminals are loose, oxidized, or burned. If the insulation of the wire is damaged, replace it with an insulated wire of the same specification in a timely manner. If the terminal is loose, tighten it with a torque wrench according to the standard torque. The oxidized and burned parts need to be polished and coated with conductive paste. Subsequently, use a multimeter to check the continuity and insulation resistance of the circuit, ensuring that each circuit is properly connected and the insulation resistance meets the technical requirements of the equipment, and eliminating hidden circuit faults.
The reset of safety devices should be carried out after the power line inspection is qualified and confirmed to have no safety hazards. The core is to ensure the accurate reset of emergency stop, protective door, overload protection and other device functions. Firstly, perform a reset operation on the emergency stop button. After pressing the emergency stop button, rotate it clockwise until it pops up. At the same time, test whether the emergency stop function is normal. When pressed, the equipment should immediately stop and restart after resetting. Next, check the safety device of the protective door. After closing the protective door, confirm that the travel switch is triggered in place. The protective door closing indicator light on the equipment control panel will light up. If the indicator light is not on, adjust the position of the travel switch to ensure reliable linkage between the protective door and the switch. Finally, perform a reset check on other safety devices such as overload protection to check if they are in normal working condition. If there is an overload trip, investigate the cause of the overload and handle it before resetting.
After the process is completed, a comprehensive test needs to be conducted by connecting the main power supply, starting the equipment for no-load operation, checking the operating status of each component and the response of safety devices, and confirming that there are no abnormalities before it can be put into production. Strictly following the above process can effectively ensure the safe and stable operation of the double headed profile machining center.