With the continuous introduction of manufacturers, automation equipment has become a sharp tool for the majority of manufacturers to improve efficiency and reduce costs. Any mechanical automation is made up of three parts: actuator, sensor and controller. When the automatic machinery suddenly fails to work, or the program is disordered in the work, it is necessary to do a good job in fault detection.
Next, let's understand the diagnosis method of automatic mechanical fault from the three parts of machine equipment. Check all switching power supply, air source and hydraulic source of mechanical automation. Problems with power, air and hydraulic sources often cause automatic mechanical failures. For example, there is a problem in the power supply system, including the failure of the power supply system in the whole production workshop, such as low power supply, fuse damage, poor contact of the power line plug, etc.; the air pump or hydraulic pump is not opened, the pneumatic triple or dual parts are not opened, the load relief valve or some pressure valves in the hydraulic transmission system are not opened, etc.
Inspection of automatic machinery shall include the following aspects: inspection of power supply, including power supply system of each machine equipment and power supply of production workshop. Check the air source, including the air pressure source required for pneumatic equipment. Check the working condition of the hydraulic source, including the hydraulic pump necessary for the automatic mechanical hydraulic device. 2. Check whether the specific position of the sensor of the automatic machine is deviated. Due to the negligence of the equipment maintenance and management staff, some sensors may be in the wrong position, such as not working in place, common sensor failure, common sensitivity failure, etc. Always check the specific position and sensitivity of the sensor, and adjust the error in time. If the sensor is damaged, remove it immediately. In addition, because of the vibration of automatic machinery, most of the sensors are loose after long-term application, so it is necessary to check whether the specific position of the sensors is correct or stable during normal maintenance.
3. Check the relay, flow control valve, pressure control valve relay and magnetic induction sensor of the automation machinery, the long-term application will also have the condition of ground connection, so it is impossible to ensure the normal control circuit of the electrical equipment, so it must be replaced. In the pneumatic or hydraulic transmission system, the opening of the throttle valve and the pressure adjustment of the pressure valve spring yellow, will also loose or drag along with the vibration of the machine and equipment. These equipment and sensors are the same, in the automation machinery are all parts that need to be well maintained at ordinary times. 4. Check the connection of electrical, pneumatic and hydraulic circuits. If there are no other problems in the above three steps, check all control circuits. Find out if there is an open circuit in the wire in the power circuit, especially if the wire in the trunking is cut by the trunking due to the involvement. Check whether there is any damaged fold in the trachea. Check whether the hydraulic oil pipe is blocked. If bronchus appears more serious fold mark, remove immediately change. The hydraulic oil pipe shall be replaced.