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For the fault diagnosis of punching and shearing machines, commonly used detection equipment and diagnostic techniques can be divided into the following aspects:
1、 Mechanical equipment status detection
1. Vibration monitoring equipment: This type of equipment can monitor the vibration status of the equipment in real time through vibration sensors installed in key parts of the punching and shearing machine. By analyzing the frequency, amplitude and other information of the vibration signal, the equipment can be diagnosed for mechanical faults.
2. Temperature monitoring equipment: Use temperature sensors to monitor temperature changes in key components of the punching and shearing machine, such as motors, bearings, etc. Excessive temperature may indicate issues such as friction, overload, or poor heat dissipation.
2、 Electrical system inspection
1. Multimeter: used to measure parameters such as voltage, current, and resistance of electrical systems, to determine whether the circuit is smooth and whether components are damaged.
2. Oscilloscope: capable of displaying the waveform of electrical signals, used for diagnosing faults in control and communication circuits.
3、 Hydraulic system inspection
1. Pressure gauge: used to measure the pressure of the hydraulic system, determine whether the system pressure is normal, and whether there are any leaks or other issues.
2. Oil analysis equipment: By analyzing the physical and chemical properties of hydraulic oil, it can determine whether the system has problems such as pollution and oxidation, and then diagnose hydraulic system faults.
4、 Control system detection
1. PLC programmer: used to read and modify programs and data of PLC (programmable logic controller), diagnose errors and logic faults in control programs.
2. Fault diagnosis software: Based on the control system and sensor data of the punching and shearing machine, provide fault diagnosis and maintenance suggestions through software analysis.
5、 Professional diagnostic equipment
1. Thermal imager: capable of capturing and displaying heat distribution images during the operation of the punching and shearing machine, and identifying potential equipment failures through abnormal high temperature points.
2. Acoustic emission detection equipment: By detecting the acoustic emission signals generated by internal stress changes in materials, it diagnoses internal damage such as cracks and corrosion.
6、 Precautions
When using detection equipment and diagnostic techniques, the safety and reliability of the equipment should be ensured to avoid damage to the equipment and personnel.
When conducting fault diagnosis, various factors should be comprehensively considered, such as the working environment of the equipment, frequency of use, maintenance records, etc., in order to obtain accurate diagnostic results.
Summary: For the fault diagnosis of punching and shearing machines, commonly used detection equipment and diagnostic techniques include mechanical equipment status detection, electrical system detection, hydraulic system detection, control system detection, and professional diagnostic equipment. By comprehensively applying these detection equipment and diagnostic techniques, it is possible to more accurately determine the type and cause of faults in the punching and shearing machine, providing strong support for maintenance work.