Application of Damping Vibration Reduction Technology in Machine Tool Transformation

Abstract

The turning tool post is a key structural component of CNC vertical lathes, whose structural characteristics directly determine the machine tool’s rigidity, machining accuracy, vibration resistance, cutting efficiency, and service life. Dynamic performance is even the core factor affecting the overall machine performance. Aiming at the cutting chatter problem during the machining of the SXT-032 CNC vertical lathe, this study modified the equipment for damping vibration reduction based on the principle of damping vibration energy dissipation. Measures included optimizing the ram structure of the vertical tool post, adopting a rolling-sliding composite guideway, and integrating a built-in damping system. Practical tests verified that: after modification, under the working conditions of ram extension of 500 mm, cutting depth of 5 mm, and feed rate of 0.5 mm/r, the cutting chatter of the equipment completely disappeared. Machining stability and surface quality were significantly improved, achieving the expected vibration reduction effect.