公开(公告)号：US06575676B2

公开(公告)日：2003-06-10

申请号：US09839613

申请日：2001-04-19

申请人： Jinsong Wang ,  Xin-Jun Liu ,  Peiqing Ye ,  Guanghong Duan

发明人： Jinsong Wang ,  Xin-Jun Liu ,  Peiqing Ye ,  Guanghong Duan

IPC分类号： B23C100

CPC分类号： B25J17/0266 ,  B23Q1/5462 ,  B25J9/0072 ,  Y10T74/20207 ,  Y10T74/20341 ,  Y10T409/307672 ,  Y10T409/308512 ,  Y10T409/309576

摘要： This invention relates to the parallel structure of a spatial 3-axis machine tool with three degrees of freedom (3 DOF), which have two translational DOF and one rotational DOF. The machine tool includes a base, a mobile platform to which a tool may be attached, and three kinematic legs. Two of the three legs are in a same plane, and each have one 3-DOF spherical joint and two 1-DOF joints. The third leg has one 1-DOF joint and two universal joints. Compared with traditional machine tools, this invention possesses several advantages such as simple structure, high stiffness, low inertia, low cost, and high speed.