HIGH-SPEED SPINDLE WITH FORCED MECHANICAL VIBRATORY ASSISTANCE

    公开(公告)号:US20230150038A1

    公开(公告)日:2023-05-18

    申请号:US17916281

    申请日:2021-04-01

    申请人: MITIS

    发明人: Sylvain LAPORTE

    IPC分类号: B23B47/34

    摘要: A spindle for a machine tool, including a housing, a shaft for driving a cutting tool, rotatably mounted inside the housing with a possibility of axial movement relative to the housing, a single ball, axially interposed between a bearing ring fixed relative to the housing and a bearing ring movable with the shaft, one of these rolling rings defining an inclined bearing surface that is not perpendicular to the axis of rotation of the shaft, so that the rotation of the ball generates an axial oscillation of the shaft.

    High speed drilling spindle with reciprocating ceramic shaft and
edoubl-gripping centrifugal chuck
    3.
    发明授权
    High speed drilling spindle with reciprocating ceramic shaft and edoubl-gripping centrifugal chuck 失效
    具有往复陶瓷轴和edoubl夹紧离心卡盘的高速钻孔主轴

    公开(公告)号:US5997223A

    公开(公告)日:1999-12-07

    申请号:US158385

    申请日:1998-09-22

    摘要: A spindle capable of operation at 200,000 revolutions per minute (RPM) with a reciprocating shaft design to minimize the moving mass. The spindle has a ceramic spindle shaft to decrease the moving mass and increase the shaft stiffness for better dynamic stability. The spindle employs a built-in linear motor to provide direct drilling motion to move the shaft along the axis, and a permanent magnet DC brushless motor to rotate the spindle shaft. The linear motor is coupled to the shaft by a combination of an air bearing and a magnetic thrust bearing to reduce the size of the thrust area for better dynamic stability and reduction in stresses of material. A double gripping centrifugal chuck is mounted in the hollow ceramic shaft, and reduces drill bit runout.

    摘要翻译: 主轴能够以往复轴设计,以每分钟200,000转(RPM)运转,以最小化运动质量。 主轴具有陶瓷主轴以减小运动质量并增加轴刚度,以获得更好的动态稳定性。 主轴采用内置线性电机提供直接钻孔运动,以沿轴线移动轴,以及永磁直流无刷电机旋转主轴。 线性电动机通过空气轴承和磁性推力轴承的组合联接到轴,以减小推力面积的尺寸,以获得更好的动态稳定性和减少材料的应力。 双夹紧离心式卡盘安装在中空陶瓷轴上,减少了钻头的跳动。

    Low mass, low profile, force balanced Z-axis drilling apparatus with improved machine dynamics
    4.
    发明授权
    Low mass, low profile, force balanced Z-axis drilling apparatus with improved machine dynamics 有权
    低质量,低外形,力平衡Z轴钻孔设备,具有改进的机器动力学

    公开(公告)号:US09050664B1

    公开(公告)日:2015-06-09

    申请号:US14303998

    申请日:2014-06-13

    摘要: An improved lightweight z-axis (vertical) drilling apparatus for a commercial PCB drilling systems that uses a pair of unitary z-axis movement guides that integrate the vertical, guided movement of the linear actuator, spindle and pressure foot of a PCB drilling apparatus. The linear actuator is positioned directly above and coupled to the spindle, and the unitary z-axis movement guides situated such that the such that the center of mass of all of the drilling assembly's moving components is collinear with the axis of rotation of the motor and spindle. The combination of these improvements allows for faster drilling times, shorter drilling cycles, less drill bit wander, slower drill bit dulling and less drill bit breakage.

    摘要翻译: 一种用于商业PCB钻孔系统的改进的轻型z轴(垂直)钻孔设备,其使用一对整体的z轴运动导轨,其整合了线性致动器,主轴和PCB钻孔设备的压脚的垂直引导运动。 线性致动器直接定位在主轴上方并且联接到主轴上,并且整体的z轴移动引导件被定位成使得所有钻孔组件的运动部件的质心与马达的旋转轴线共线, 主轴。 这些改进的组合允许更快的钻孔时间,更短的钻孔周期,更少的钻头漂移,较慢的钻头钝化和较少的钻头断裂。

    Cutting insert for high-speed milling cutter
    5.
    发明授权
    Cutting insert for high-speed milling cutter 有权
    切削刀片用于高速铣刀

    公开(公告)号:US07070363B2

    公开(公告)日:2006-07-04

    申请号:US10891677

    申请日:2004-07-15

    IPC分类号: B23C5/20

    摘要: An indexable cutting insert (10) having a top surface (12) including a substantially planar central portion (48), a substantially planar bottom surface (14), and a plurality of side surfaces (16, 18, 20, 22). A long cutting edge (24, 26), a corner radius cutting edge (28, 30), a facet radius cutting edge (32, 34), and ramping cutting edge (36, 38) are defined at an intersection between the top surface (12) and one of the side surfaces (16, 18, 20, 22). A margin (87, 89) extends around a nose radius of the cutting insert (10) and blends into a flat surface (94, 96). A margin angle, C, formed by the margins (87, 89) is less than a seating angle, B, formed by the flat surfaces (94, 96). The top surface (12) includes a plurality of upward sloping radius blends (50, 52, 54, 56, 58, 60, 62, 64) extending between the substantially planar central portion (48) and a plurality of upward sloping rake faces (70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92) extending between a respective radius blend and its respective cutting edge such that the rake face forms an angle, A, of between five and twenty-five degrees with respect to the central portion (48) of the top surface (12).

    摘要翻译: 具有包括基本平坦的中心部分(48),基本平坦的底表面(14)和多个侧表面(16,18,20,22)的顶表面(12)的可转位切削刀片(10)。 长切削刃(24,26),角半径切削刃(28,30),小圆半径切削刃(32,34)和斜坡切削刃(36,38)被限定在顶面 (12)和一个侧表面(16,18,20,22)。 边缘(87,89)围绕切削刀片(10)的刀尖半径延伸并且共混成平坦表面(94,96)。 由边缘(87,89)形成的边缘角度C小于由平坦表面(94,96)形成的就座角度B。 顶表面(12)包括在基本平坦的中心部分(48)和多个向上倾斜的前刀面之间延伸的多个向上倾斜的半径的共混物(50,52,54,56,58,60,62,64) 70,72,74,76,78,80,82,84,86,88,90,92),其在相应的半径混合物和其相应的切割边缘之间延伸,使得前刀面形成五个和 相对于顶面(12)的中心部分(48)为二十五度。

    High speed drilling spindle with reciprocating shaft and double-gripping centrifugal chuck
    9.
    发明授权
    High speed drilling spindle with reciprocating shaft and double-gripping centrifugal chuck 失效
    高速钻具主轴带往复轴和双夹式离心式卡盘

    公开(公告)号:US06227777B1

    公开(公告)日:2001-05-08

    申请号:US09436817

    申请日:1999-11-09

    IPC分类号: B23C102

    摘要: A spindle capable of operation at 200,000 revolutions per minute (RPM) with a reciprocating shaft design to minimize the moving mass. The spindle has a ceramic spindle shaft to decrease the moving mass and increase the shaft stiffness for better dynamic stability. The spindle employs a built-in linear motor to provide direct drilling motion to move the shaft along the axis, and a permanent magnet DC brushless motor to rotate the spindle shaft. The linear motor is coupled to the shaft by a combination of an air bearing and a magnetic thrust bearing to reduce the size of the thrust area for better dynamic stability and reduction in stresses of material. A double gripping centrifugal chuck is mounted in the hollow ceramic shaft, and reduces drill bit runout.

    摘要翻译: 主轴能够以往复轴设计,以每分钟200,000转(RPM)运转,以最小化运动质量。 主轴具有陶瓷主轴以减小运动质量并增加轴刚度,以获得更好的动态稳定性。 主轴采用内置线性电机提供直接钻孔运动,以沿轴线移动轴,以及永磁直流无刷电机旋转主轴。 线性电动机通过空气轴承和磁性推力轴承的组合联接到轴,以减小推力面积的尺寸,以获得更好的动态稳定性和减少材料的应力。 双夹紧离心式卡盘安装在中空陶瓷轴上,减少了钻头的跳动。