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1. 发明申请

WO1998009759A1 APPARATUS AND METHOD FOR MACHINING VALVE SEATS IN AN ENGINE CYLINDER HEAD 审中-公开
标题翻译：用于在发动机气缸盖中加工阀座的装置和方法
公开(公告)号：WO1998009759A1
公开(公告)日：1998-03-12
申请号：PCT/US1997014601
申请日：1997-08-15
申请人： HARMAND FAMILY LTD. PARTNERSHIP
发明人： HARMAND FAMILY LTD. PARTNERSHIP , HARMAND, Brice , HARMAND, Pierre
IPC分类号： B23C03/05
CPC分类号： B23Q1/5456 , B23C3/055 , Y10T408/5587 , Y10T408/5614 , Y10T408/5617 , Y10T408/5638 , Y10T408/91
摘要： The valve seat and guide machine comprises a base structure (102) which supports a pantograph (110, 112, 114, 116) having a major arm and minor arm which moves slidably with respect to the major arm. A spherical head (118) is supported by a number of sphere seats (142, 144) attached to the pantograph arm so that the spherical head can pivot around its centerpoint. A stepper motor (152) provides small z-axis translation of the spindle (150) which is contained in the spherical head and has a cutting bit (156) and a pilot (158) which extend from the bottom of the spherical head (118). A drive motor (138) rotates a transmission linkage (164) which is coupled to the spindle which rotates the cutting bit (156) to cut the valve seat. Small x, y displacements are enabled by moving the entire spherical housing (118) and its supporting sphere seats (142, 144) with respect to the support frame (222). The pantograph provides large z-axis displacement to remove the spindle from the cutting position and to provide clearance for movement to another machine site. A system controller (162) receives feedback from system monitors to control the spindle rotation and translation. Such information can be stored on a removable memory card for repeatable machining. The cylinder (106) head is held in place by a pair of supports which allow the rotation of the cylinder head for easy positioning of the valve guides in the plane of the spherical head and spindle. These supports are moveable from side-to-side to allow the cylinder head to be moved so that successive valve seats may be machined.
摘要翻译：阀座和引导机包括支撑具有相对于主臂可滑动地移动的主臂和小臂的集电弓（110,112,114,116）的基座结构（102）。球形头（118）由附接到缩放臂的多个球座（142,144）支撑，使得球形头可绕其中心点枢转。步进马达（152）提供包含在球形头部中的主轴（150）的小的z轴平移，并且具有从球形头部（118）的底部延伸的切削刀头（156）和引导件（158））。驱动马达（138）旋转传动联动装置（164），该传动联动装置（164）联接到旋转切割钻头（156）以切断阀座的主轴。通过相对于支撑框架（222）移动整个球形壳体（118）及其支撑球座（142,144）来实现小x，y位移。受电弓提供大的z轴位移，以从切割位置移除主轴，并提供移动到另一个机器位置的间隙。系统控制器（162）从系统监视器接收反馈以控制主轴的旋转和平移。这样的信息可以存储在可移动存储卡上用于可重复的加工。气缸（106）头部通过一对支撑件保持在适当的位置，这些支撑件允许气缸盖的旋转，以便于将阀导轨容易地定位在球形头部和心轴的平面中。这些支撑件可从一侧到另一侧移动以允许气缸盖移动，使得连续的阀座可被加工。

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