Design Method of B-Axis Components of Water Chamber Head Turning and Milling Machining Center

Zheng Minli*, 1, Cheng Fenglan1, Zhao Jiaxue1, Sun Shouzheng1, Jiang Chongmin2
1 National & Local United Engineering Laboratory of High Efficiency Cutting and Tools, Harbin University of Science and Technology, Heilongjiang, Harbin, 150080, P.R. China
2 Qiqihar No.2 Machine Tool (Group) Co., Heilongjiang, Qiqihar, 161000, P.R. China

© 2015 Minli et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: ( This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the School of Mechanical Engineering, Harbin University of Science and Technology, Heilongjiang, Harbin, 150080, P.R. China; Tel: 15004501856; Fax: +86 0451 86390572; E-mail:


Aiming at the demands of nuclear water chamber head’s multi-inclined holes and ramps in boring and milling, based on design requirements of special turning and milling machining center, B-axis structural design is put forward, research on deformation characteristics of ram components under different swing angle, propose the control methods of deformation and errors. Adopt modeling method of equal mass, construction of deformation and displacement analysis model of B-axis components, explore formation reason of maximum gap between components’ joint surface, form optimization design scheme of rotation structure of B-axis components. Trial-produce prototype of B-axis components, make experiment of trial cut water chamber head in turning and milling machining center, utilize test results of part's machining quality, verify unloading effects and machining accuracy of design scheme of B-axis components has been verified.

Keywords: B-axis components, Rotational structure, Turning and milling machining center, Water chamber head, Trial cut experiments, Machine accuracy.