The Mysterious Case of the Oiling Leak in the MT2V CNC Profile Machine
The Mystery Unfolds: A Story of Oil Leaks and Temperature Fluctuations
In the world of machine tools, oil leaks can be a frustrating and costly problem, especially when they occur on high-performance CNC machines like the MT2V. In this blog post, we’ll delve into the case of a Mishing MT2V CNC profile machine that was plagued by oil leaks, and explore the surprising connection between temperature fluctuations and oil pressure.
The Background: A Case of High-Pressure Oil Leaks
In 1998, a Mishing MT2V CNC profile machine was installed in a factory, equipped with a hydraulic lubrication system that was designed to supplement the guidance rail with automatic lubrication. The system consisted of a main oil tank filled with anti-motor hydraulic oil HM68, which was used to lubricate various components, including the head of the tool, the spitting head, and the Z-axis. However, in the winter of 1998, the factory’s temperatures dropped, and with it, the hydraulic lubrication system began to malfunction, causing oil leaks to occur at the bottom of the spitting box and the oil leak to become increasingly severe as the temperature fell.
Analyzing the Defect: A Pursuit of Clarity
As the problem persisted, the team tasked with resolving the issue conducted a thorough analysis of the hydraulic lubrication system. They discovered that the oil leak was not occurring in the high-pressure hydraulic system, which was a relief, as there were no alarm prompts or tool life issues. The problem was localized to the pin lubrication system.
Unraveling the Mystery: The Connection between Temperature and Oil Pressure
To understand the root cause of the oil leak, the team turned their attention to the relationship between oil temperature and pressure. By examining the data, they found that the pressure of the lubricating oil was affected by the temperature, and that the pressure adjusted during the installation and commissioning of the machine tool in the summer was not suitable for winter operation. In fact, the data revealed that the oil pressure of 0.5-1MPa was not a static value, but rather a fluctuating one, influenced by the oil temperature.
The Solution: Adjusting the Oil Pressure to Match the Temperature
Based on these findings, the team adjusted the Direct Control Overflow Valve 2 to match the oil pressure to the temperature. They discovered that when the oil temperature was 29°C, the Refrigerator would no longer function, and the oil pressure value could not be changed. By adjusting the Direct Control Overflow Valve 2 at this temperature, the oil pressure value could not be changed, ensuring that the oil pressure remained stable and the oil leak was eliminated.
Conclusion: A Lesson in the Importance of Oil Pressure and Temperature Management
In conclusion, the case of the Mishing MT2V CNC profile machine highlights the critical importance of understanding the relationship between oil pressure and temperature in oil-based machine tools. By recognizing that the oil pressure is not a static value, but rather a dynamic one influenced by temperature, the team was able to resolve the oil leak issue and ensure the continued operation of the machine tool. This case study serves as a valuable reminder for machine tool manufacturers and operators alike to carefully monitor and adjust the oil pressure and temperature to ensure optimal machine performance and longevity.
Acknowledgments
This article was written by the 158 Machine Tool Network, a leading provider of machine tool news and information. Thank you for your continued support in promoting the advancement of machine tools and associated technologies.
