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Zhao Yongsheng
Li Qinchuan
Zheng Kuijing
College of Mechanical Engineering,
Yanshan University,
Qinhuangdao 066004, China |
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NOVEL 5-AXIS
PARALLEL MACHINE TOOL FAMILY*
Abstract: A novel 5-axis parallel machine tool family is presented. The basic idea behind this family is to use an additional passive constraint limb to restrict the rotational DOF(Degrees of freedom) of the moving platform, which is an unnecessary DOF in the 5-axis machining process. The structures of the constraint limb are synthesized by screw theory. By adding sensors on the joints of the constraint limb, the configuration of the moving platform is available by reverse kinematics so that closed-loop control for the machine tool can be implemented.
Key words:
Parallel machine tool Mobility Design theory |