-
1.
公开(公告)号:US20050188798A1
公开(公告)日:2005-09-01
申请号:US11065618
申请日:2005-02-24
申请人: Kenneth Bischof , William Zdeblick
发明人: Kenneth Bischof , William Zdeblick
CPC分类号: F16C32/0489 , B23B5/36 , B23B2260/0045 , B23B2270/38 , B23B2270/58 , B23Q1/4876 , B23Q5/10 , F16C2322/39 , Y10T82/10 , Y10T82/122 , Y10T408/85 , Y10T409/309352
摘要: A magnetically levitated high-speed spindle assembly (20) is provided for forming non-circular holes (22) in workpieces (24) or non-circular surfaces on pins. The non-circular holes (22) can be formed with dimensionally varying axial trajectories at high speeds and with great accuracy. This is accomplished by supporting a rotating spindle (26) between first (58) and second (60) magnetic bearing clusters and independently controlling these bearing clusters (58, 60) to move a shaping tool (32) at the end of the spindle (26) in a predetermined orbital path (B). A multiple input-multiple output control strategy is used to control spindle (26) movements in the X and Y axes. The tilt angle between the cutting edge (34) of the shaping tool (32) and the orbital path (B) is maintained perpendicular under this multiple input-multiple output control of the magnetic bearing clusters (58, 60) to further improve shaping precision and spindle (26) stability during high-speed operations.
摘要翻译: 提供磁悬浮的高速主轴组件(20),用于在工件(24)或销上的非圆形表面上形成非圆形孔(22)。 非圆形孔(22)可以以高速和高精度形成尺寸变化的轴向轨迹。 这是通过在第一(58)和第二(60)磁轴承簇之间支撑旋转主轴(26)来实现的,并且独立地控制这些轴承簇(58,60)以移动在主轴端部处的成形工具(32) 26)在预定轨道(B)中。 多输入多输出控制策略用于控制X轴和Y轴上的主轴(26)运动。 成形工具(32)的切削刃(34)和轨道(B)之间的倾斜角度在磁轴承簇(58,60)的多重输入多输出控制下保持垂直,以进一步提高成形精度 和主轴(26)在高速运行时的稳定性。