Introduction
Hydraulic bending machines are indispensable in the field of engineering machinery, particularly in metal fabrication. Their role in bending metal sheets into desired geometrical profiles is crucial. Ensuring the operational reliability of these machines is key to maintaining productivity and achieving high-quality outcomes. This article delves into the common problems faced during the operation of hydraulic bending machines and provides expert solutions to effectively handle these emergencies.
Understanding the Functionality of Hydraulic Bending Machines
Hydraulic bending machines utilize a full steel welded structure to ensure stability and durability. Through vibration aging technology, internal stress is minimized, enhancing the machine's performance stability. The integrated hydraulic system and the slider's transmission not only allow for a broad range of speed adjustments but also ensure reliable and stable operation. The separation of the slider travel adjustment mechanism from the cylinder assembly enhances sealing and operational efficiency.
Emergency Solutions for Hydraulic Bending Machines
Electrical Issues in Proportional Hydraulic Bending Machine Tools
Checking Electromagnetic Coils
Proportional hydraulic bending machine tools depend on their electromagnetic coils. Check whether these coils are charged and if the voltage meets the specified requirements. Electrical faults can often lead to operational failures, which can be diagnosed and rectified by checking the electrical connections and components.
Valve and Core Stuck Problems
Unblocking Insert Valves and Main Valve Cores
One common issue is the sticking of insert valves or main valve cores, possibly due to clogged damping holes. To resolve this, disassemble the overflow valve of the hydraulic bending machine tool, clean all parts thoroughly, and reassemble. Ensuring these components are free from blockages can significantly improve the machine’s responsiveness and reliability.
Issues with Oil Levels and Valves
Adjusting Oil Levels
Low oil levels in the mold's oil tank can lead to insufficient charging of fluid, especially during rapid operations. Ensure that the oil level is at least 5mm above the filling port to completely submerge the inlet and prevent air suction.
Cleaning Charge Valves
In cases where the charging valves are not fully open or are contaminated, cleaning the hydraulic valves is necessary. Removing any debris and ensuring the valve cores move freely can prevent issues related to insufficient fluid charging.
Speed and Phase Adjustment
Modifying Advance Speeds
If the quick advance speed is too high, it can lead to insufficient charging. Adjusting the system parameters to reduce the speed of the hydraulic bending machine molds can prevent this issue.
Correcting Phase Issues in Three-Phase Power Supply
Incorrect phasing in the three-phase power supply can cause the motor to run in reverse. Adjusting the phase can rectify this problem, ensuring that the motor operates in the correct direction.
Conclusion
Regular maintenance and timely resolution of emergency issues are critical for the efficient operation of hydraulic bending machines. By understanding and implementing the solutions provided for common hydraulic issues, operators can ensure their machines perform optimally with minimal downtime. These solutions not only enhance the machine's reliability but also improve the overall quality of the bent products.
