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- Title
液压动力补偿卡盘夹紧力特性分析与研究.
- Authors
王天成; 孙鹏文; 张兰挺; 张国斌; 王岩松
- Abstract
Hydraulic power chuck is the core functional component of CNC machine tools, and its design and application level di- rectly affect the machining quality of the workpiece. Based on the structure and working principle of hydraulic power compensation chuck, force analysis was conducted, and theoretical calculation models for static and dynamic clamping forces were derived. It was found that the main factors affecting static and dynamic clamping forces were wedge surface inclination angle, friction coefficient and cylinder thrust, machine speed, chuck and workpiece stiffness. Based on the finite element simulation analysis platform, the dynamic clamping process of the chuck was simulated using displacement load instead of input force. The comparison between the clamping force simulation and theoretical results under different working conditions shows that; the two values are similar, the maximum error is 6.2%, verifying the correctness of the established dynamic clamping force theoretical calculation model.
- Subjects
NUMERICAL control of machine tools; FINITE element method; HYDRAULIC models; THRUST; FRICTION
- Publication
Machine Tool & Hydraulics, 2024, Vol 52, Issue 14, p108
- ISSN
1001-3881
- Publication type
Article
- DOI
10.3969/j.issn.1001-3881.2024.14.018