Haining Liu

Title: Innovations by Haining Liu in Thermal Error Compensation

Introduction

Haining Liu is an accomplished inventor based in Dalian, China, known for his significant contributions to the field of error compensation in numerical control (NC) machine tools. With a total of four patents to his name, Liu has made strides in addressing thermal errors that can impact the precision and performance of CNC machinery.

Latest Patents

Haining Liu's innovative work includes two notable patents. The first is titled "Self-adaptive compensation method for feed axis thermal error." This invention focuses on predicting and compensating for thermal errors in the feed axis of NC machine tools. By utilizing a laser interferometer and temperature sensors, Liu conducted thorough tests to establish a thermal error prediction model grounded in the thermal error mechanism. This model helps identify the thermal characteristic parameters essential for accurate error compensation, ultimately enhancing the operational accuracy of machine tools.

The second significant patent is "Application method of the thermal error-temperature loop in the spindle of a CNC machine tool." This method is designed to assess and analyze radial thermal errors in the spindle of CNC machinery. By employing a bar and two displacement sensors alongside temperature sensors, Liu effectively draws a thermal error-temperature loop to evaluate the relationship between temperature differences and radial thermal deformations, providing more accurate real-world results compared to previous numerical simulations.

Career Highlights

Haining Liu is associated with the Dalian University of Technology, where he applies his expertise in mechanical engineering and thermal error compensation. His innovative research has contributed to advancements in CNC technology, making significant impacts in manufacturing processes that require high precision.

Collaborations

Throughout his career, Liu has collaborated with notable associates such as Kuo Liu and Yongqing Wang. These collaborations have fostered a productive environment for innovation and development in the field of thermal error compensation, leading to practical applications in various industrial contexts.

Conclusion

Haining Liu's innovative approaches to addressing thermal errors in NC machine tools reflect his commitment to enhancing precision engineering. His patents and ongoing research continue to contribute to the evolution of CNC technology, positioning him as a key figure in the realm of mechanical engineering innovations.