利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.012 秒)

    Method for sharpening drills and other cutting tools
    1.
    发明授权
    Method for sharpening drills and other cutting tools 失效
    磨刀和其他切削刀具的方法

    公开(公告)号：US3911629A

    公开(公告)日：1975-10-14

    申请号：US45911774

    申请日：1974-04-08

    申请人： STEINMETZ JOHN C

    发明人： STEINMETZ JOHN C

    IPC分类号： B24B3/30 ,  B24B1/00

    CPC分类号： B24B3/30

    摘要： A method for accurately and quickly sharpening multiple cutting edges of a rotary cutting tool such as a drill in a single continuous operation. The method comprises providing a grinding surface, holding the drill relative to the grinding surface, and imparting a composite movement to the drill. This composite movement comprises simultaneously I. ROTATING THE DRILL IN ONE DIRECTION ABOUT A ROTATION AXIS WHICH EXTENDS IN GENERALLY THE SAME DIRECTION AS THE DRILL AXIS, BUT WHICH INTERSECTS THE DRILL AXIS AT THE CUTTING END OF THE DRILL AND IS OTHERWISE OUT OF ALIGNMENT WITH THE DRILL AXIS DURING AT LEAST A PORTION OF THE ROTATION, AND II. TILTING OR PIVOTING THE DRILL BACK AND FORTH ABOVE A PIVOT AXIS WICH INTERSECTS AND EXTENDS GENERALLY PERPENDICULAR TO THE DRILL AXIS AT THE CUTTING END OF THE DRILL, IN TIMED RELATION TO THE ROTATION. This composite movement provides the relieved portions back of the cutting edges of the drill. The moving drill is periodically moved away from the grinding surface to avoid grinding off the point or apex of the drill. The drill is selectively advanced into the grinding surface to achieve the desired amount of sharpening.

    摘要翻译： 一种用于在单次连续操作中精确和快速地磨削诸如钻头的旋转切削工具的多个切削刃的方法。 该方法包括提供研磨表面，相对于研磨表面保持钻头，并且向钻头施加复合运动。 这种复合运动同时包括在一个方向上旋转钻机，该旋转轴通常以相同的方向作为钻孔轴延伸，但是在钻头的切割端处与钻头轴线相交，并且与另外的钻孔不对齐 钻井轴至少有一个旋转部分，二。 倾斜或将钻机倾斜或延伸至上述钻井轴线之间，并在钻头切割端与钻头相关的钻孔轴向延伸一般。

    Chuck apparatus
    2.
    发明授权
    Chuck apparatus 失效
    CHUCK装置

    公开(公告)号：US3912287A

    公开(公告)日：1975-10-14

    申请号：US45905074

    申请日：1974-04-08

    申请人： STEINMETZ JOHN C

    发明人： STEINMETZ JOHN C

    IPC分类号： B23B31/12 ,  B24B3/24

    CPC分类号： B24B3/247 ,  B23B31/1261 ,  Y10T279/17231 ,  Y10T279/18 ,  Y10T279/26 ,  Y10T279/35

    摘要： Chuck apparatus for holding a cutting tool or other work-piece for rotational movement about an axis. The chuck apparatus comprises generally a frame disposed around the axis and at least three jaws each having an outer portion and an inner gripping portion. The jaws are pivotally mounted at their outer portions on the frame. The jaws are spaced around the axis and extend generally inwardly toward the axis so that the inner gripping portions will converge toward the axis when the jaws are pivoted. The chuck further comprises means for controlling the pivotal movement of the jaws toward and away from the axis so that each of the gripping portions remains essentially the same distance from the axis as the other gripping portions over a gripping range for the chuck apparatus. The apparatus is particularly adapted to hold a workpiece such as a twist drill which has an irregular or discontinuous outer surface, the jaws having a length in the direction of the axis to provide sufficient points of contact between the jaws and the helical flutes of the drill to accurately center the drill and firmly hold it in that position.