Manhart How to identify and handle faults in CNC bending machines?

**How to identify and handle faults in CNC bending machines**
As an important equipment in modern metal processing, the stability and reliability of CNC bending machines are crucial for production efficiency. However, during use, due to various reasons, CNC bending machines may malfunction. This article will focus on how to determine the types of faults in CNC bending machines and provide corresponding handling methods, mainly covering three aspects: mechanical faults, hydraulic faults, and electrical faults.
1、 Mechanical faults
1. * * Fault diagnosis**
-Damage to bearings or transmission components: manifested as abnormal noise during equipment operation, unstable transmission, or inaccurate equipment positioning.
-Wear or looseness of the guide rail: The equipment experiences jamming, shaking, or displacement during movement, which affects the machining accuracy.
-* * Mold damage or improper installation * *: During the bending process, there are indentations, cracks, or inaccurate shapes on the surface of the workpiece.
2. * * Processing method**
-Regularly inspect bearings, transmission components, etc., and replace damaged parts in a timely manner.
-Adjust the gap between the guide rails to ensure smooth operation of the equipment.
-Check the status of the mold, replace or repair it in a timely manner, and ensure correct installation.
2、 Hydraulic faults
1. * * Fault diagnosis**
-* * High oil pump noise or insufficient pressure * *: After the equipment is started, the oil pump runs with abnormal sound and the system pressure cannot reach the set value.
-* * Oil leakage * *: Oil stains are found around the equipment or at the oil connection, causing a decrease in system pressure.
-* * Cylinder not moving or moving slowly * *: When the equipment performs bending actions, the cylinder does not respond or moves slowly.
2. * * Processing method**
-Check the status of the oil pump, replace it if damaged, and ensure that the oil pump supplies oil normally.
-Check the oil circuit connections, tighten loose joints, and replace damaged seals.
-Clean or replace hydraulic oil to ensure cleanliness and avoid blockages in the oil circuit.
-Check the oil cylinder and its related components, such as piston rods, seals, etc., to ensure that the oil cylinder is working properly.
3、 Electrical faults
1. * * Fault diagnosis**
-* * Control system unresponsive or insensitive to operation * *: The control system is unresponsive or slow to respond during device startup or operation.
-* * Display abnormality * *: The display screen is black, blurred, or displaying incorrect information.
-* * Servo motor malfunction * *: The servo motor produces abnormal noise during operation or cannot act according to instructions.
2. * * Processing method**
-Restart the control system and check if the system has returned to normal.
-Check the power supply and wiring connections to ensure stable power supply voltage and correct wiring connections.
-Check the monitor and related components, and replace them if damaged.
-Check the servo motor and its driver. If there is a malfunction, replace or repair it.
**Precautions**
-When troubleshooting and handling faults, ensure that the equipment has been shut down and the power is cut off to ensure personnel safety.
-For complex faults, it is recommended to seek the help of professional maintenance personnel to avoid blind disassembly or operation that may cause further damage to the equipment.
-Regular maintenance and upkeep of CNC bending machines can effectively reduce the probability of malfunctions.
Through the above methods, we can accurately determine the type of malfunction of the CNC bending machine and take corresponding measures to ensure stable operation of the equipment and improve production efficiency.