Common Faults and Solutions for CNC Bus Bar Machining Machines

Bus bar processing machine failures are generally categorized into electrical failures, mechanical failures, and hydraulic system failures. During the operation of bus bar processing machines, hydraulic system-related failures are quite common. Among them, hydraulic circuit failures can be interdependent, and they should be eliminated by carefully analyzing the circuit and oil route diagrams, treating each case specifically. When addressing electrical failures, it is crucial to first disconnect the power supply to the entire machine.

Fault	Reason	Exclusion Method
Powerless at startup	Fuses inside the electrical box have blown out.	Change the fuse
	Power Supply Control: Unpowered	Inspect Transformers and Fuses
	Air switch tripped	Turn off the air switch or replace
Power is present, but the motor is not functioning properly.	Thermal relay overload	Adjust thermal relay or replace
	Contactor without Contactor	Repair contactors and control power supply
The motor is functioning normally, but the station's travel is not being executed.	Approaching the limit switch挡片 is not resetting	Approach the limit switch cover plate for inspection or replacement
	The overflow valve is not functioning.	Inspect or replace overflow valve
	Electromagnetic valve is not functioning	Inspect or replace electromagnets
	Oil Pump without Supercharger	Increased Hydraulic Oil Supply
	Hydraulic Pressure-Free	Adjust Overflow Valve
Machine failure Routine operations	Overflow valve clog	Overhaul the overflow valve
	Valve Electromagnetic Clogging or Instability	Overhaul solenoid valves or power sources
	Oil cylinder seal damage	Inspect and replace oil seals in hydraulic cylinders
	Omissions in YouTube or various connectors	Inspect oil pipes and fittings
	Mechanical component screws are loose.	Inspect and tighten screws at all parts

Note: To determine if an electromagnetic valve is not functioning, follow these steps: ① Check the indicator light of the electromagnetic valve: a) If the light is not on, it indicates a circuit short; inspect and repair the circuit. b) If the light is on but the valve is not working, the valve is likely stuck; inspect and repair the electromagnetic valve. ② If the valve is stuck, use a small cross-head screwdriver to gently push in and out at the middle hole on both ends of the valve; do this twice. If the issue persists, the valve may need to be repaired or replaced.