Daily maintenance of pipe bending machine

As an important equipment in modern industrial production, the stability of the performance and the length of its service life of the pipe bending machine depend largely on daily maintenance and care. Proper maintenance can not only improve the working efficiency of the equipment, but also effectively extend the service life of the equipment and reduce the failure rate, thereby saving a lot of maintenance costs and time for the enterprise. The following is a detailed maintenance guide for pipe bending machines, which aims to help operators better understand and master the maintenance knowledge of pipe bending machines.

Daily inspection and maintenance

1. Check and fill the oil level of the oil tank
The oil level of the oil tank should be checked regularly every week to ensure that the oil level is not lower than the oil window scale line. After the hydraulic system is repaired, it is also necessary to check the oil level and fill the hydraulic oil in time. The hydraulic oil used in the pipe bending machine is usually ISO HM46 or MOBIL DTE25. These hydraulic oils have good anti-wear, anti-oxidation and anti-rust properties, which can effectively protect the hydraulic system from damage.

2. Oil change and cleaning of hydraulic system
The hydraulic oil of a new bending machine should be replaced after 2000 hours of work, and then the oil should be changed again every 4000-6000 hours of work. Each time the oil is changed, the oil tank should be thoroughly cleaned to remove sediments and impurities to ensure the cleanliness of the hydraulic oil. The system oil temperature should be controlled between 35℃ and 60℃, and should not exceed 70℃. Excessive oil temperature will cause deterioration and damage of the oil quality and accessories.

3. Replacement and cleaning of filters
Every time the oil is changed, the filter should be replaced or cleaned at the same time. If the pipe bending machine has related alarms or the oil quality is not clean, etc., the filter should be replaced immediately. The air filter on the oil tank should be checked and cleaned every 3 months, and a new air filter should be replaced every year to ensure the normal operation of the hydraulic system.

4. Electrical circuit and grounding inspection
Before each operation, check whether the oil pipe and electrical circuit of the power control box and the main machine are properly connected, and confirm their correctness. The pipe bending machine must be well grounded to prevent equipment damage or personal injury caused by electrical failure. When cleaning and inspecting the pipe bending machine, the power supply must be disconnected to ensure safety.

Cleaning and tightening of hydraulic components

1. Cleaning of hydraulic components
Hydraulic components, including base plates, valves, motors, pumps, oil pipes, etc., should be cleaned every month to prevent dirt from entering the system. Cleaning agents should not be used during cleaning to avoid corrosion or damage to hydraulic components. At the same time, the bending parts of each oil pipe should be checked for deformation, and if abnormal, they should be replaced. After two months of use, the connections of all accessories should be tightened. The machine should be turned off during this work to ensure that the system is pressure-free.

2. Inspection of hydraulic pump station components
Each joint in the hydraulic pump station is equipped with an oil-resistant rubber seal. If the seal is damaged or leaks, it should be replaced in time. Check the fasteners in each part to ensure that they are in a tightened state to prevent oil leakage or failure caused by looseness.

Lubrication and cleaning of equipment

1. Addition of lubricating oil
Ten minutes before work every day, the pipe bending equipment should be lubricated and cleaned. Check the wear of the V-belt, handle, knob, and button, and add pure lubricating oil. Before the metal pipe bending machine is operated, the oil should be cleaned and free of dirt. According to the lubrication time, fixed time, and fixed point of the bending table, lubricating oil should be added regularly to ensure the smooth operation of the equipment.

2. Special requirements for CNC pipe bending machines
CNC pipe bending machines have some special requirements for maintenance. For example, the grounding must be good, and the power supply voltage exceeding the specified range is not allowed to be connected. The bed of the CNC pipe bending machine should be kept clean, and special attention should be paid to the absence of foreign matter in the sliding grooves such as the clamping block and the slider. Lubricate the chain and other sliding parts regularly, check whether the oil level in the oil tank reaches the oil level line, and fill each lubrication point. When installing the mold, the mold is required to be centered with the closing module, and the closing module can be adjusted with bolts; the booster block is centered with the mold, and the booster block can be adjusted; the core head is centered with the mold, loosen the core head frame bolts, and tighten the bolts after adjusting the centering.

 Troubleshooting and prevention

1. Inspection of solenoid valves and sequence valves
If the forward and retreat cuts fail, first check whether the solenoid valve is operating normally. If the solenoid valve works normally, check whether the sequence valve, overflow valve or one-way unloading valve is stuck by impurities. This phenomenon is usually easy to occur when the equipment is put into use. If there is a stuck phenomenon, disassemble it and clean it with gasoline or diesel, and then reinstall it.

2. Monitoring of the alarm system
The alarm system of the pipe bending machine can monitor the operating status of the equipment in real time. Once an abnormality is found, it should be stopped and checked immediately. Common alarms include high oil temperature, insufficient oil pressure, low oil level, etc. Operators should be familiar with the functions and operation methods of the alarm system so that they can respond quickly when the equipment fails.

Long-term maintenance and maintenance plan

1. Formulate a maintenance plan
The company should formulate a detailed maintenance plan based on the frequency of use and work intensity of the pipe bending machine. The maintenance plan should include daily inspection, regular maintenance, troubleshooting, spare parts replacement, etc. By formulating and implementing a maintenance plan, the long-term stable operation of the pipe bending machine can be ensured.

2. Reserve of spare parts and tools
The company should reserve an appropriate amount of spare parts and tools so that they can be replaced or repaired in time when the equipment fails. Spare parts should include commonly used hydraulic oil, filters, seals, solenoid valves, etc. Tools should include various wrenches, screwdrivers, cleaning agents, etc.

3. Operator training
Operators should receive professional training to understand the structure, performance, operation methods and maintenance knowledge of the pipe bending machine. Through training, operators can master the operation skills of the equipment and improve the efficiency of the equipment. At the same time, operators should also have the ability to troubleshoot and deal with emergencies so that they can respond quickly when the equipment fails.

Safety precautions

1. Safety inspection before operation
Before each operation, check whether the power supply, oil level, air pressure, etc. of the equipment are normal, and the machine can be turned on only after confirmation. At the same time, check whether the safety protection device is intact and effective to prevent safety accidents caused by improper operation.

2. Safety requirements during operation
During the operation, operators should strictly abide by the operating procedures and prohibit overloading the equipment. When the equipment fails or abnormal conditions occur, it should be stopped immediately for inspection and reported to relevant personnel for processing. It is strictly forbidden for non-designated personnel to operate the equipment to prevent equipment damage or personal injury caused by improper operation.

3. Safety measures during maintenance
During maintenance, the power supply and gas supply should be disconnected to ensure that the equipment is in a safe state. When disassembling and cleaning parts, appropriate tools and cleaning agents should be used to prevent damage or corrosion to the parts. When replacing spare parts, ensure that the quality of the spare parts meets the requirements to avoid equipment failures caused by spare parts quality problems.