公开(公告)号：US06331133B1

公开(公告)日：2001-12-18

申请号：US09166767

申请日：1998-10-05

申请人： Ichiro Katayama ,  Yoshinobu Watanabe ,  Yuichi Nakajima ,  Yoshiharu Shinbo

发明人： Ichiro Katayama ,  Yoshinobu Watanabe ,  Yuichi Nakajima ,  Yoshiharu Shinbo

IPC分类号： B24B4900

CPC分类号： B24B47/22 ,  B24B3/26

摘要： A method and apparatus for automatically re-pointing twist drill bits includes a drill support mechanism including means for rotatably and axially translatably holding the shank of a drill bit, and a fluted portion receiver for supporting the fluted front cutting portion of the drill bit. The apparatus also includes an optical sensor unit which views the tip and blade part of the drill bit with the drill support mechanism in an off-line position, i.e., rotated away from a grinding wheel station. Responsive to error correction servo command signals received from a comparison of the actual orientation of drill bit cutting lips with a desired pre-determined template position, rotary and linear actuators in the drill support mechanism rotate the drill bit to the proper angular orientation, and advance the bit axially to a pre-determined protrusion length. Also, command signals to the fluted portion receiver elevate the drill bit point to a pre-determined elevation, whereupon a linear actuator cylinder linked via a pivot pin to the drill support mechanism rotates the latter to thereby place the properly oriented drill bit in contact with grinding wheels of a sharpening unit. After each of the grinding wheels has sequentially contacted the cutting edges and point of the drill bit and resurfaces the contacted areas to a desired sharpness, the linear actuator cylinder is used to rotate the drill support mechanism to the off-line position, whereupon a shank retainer is pivoted vertically away from the drill bit shank, allowing the re-conditioned bit to be removed and replaced with another bit to be re-pointed.

摘要翻译： 用于自动重新指向麻花钻头的方法和装置包括钻头支撑机构，其包括用于可旋转和轴向平移地保持钻头柄的装置，以及用于支撑钻头的凹槽前切割部分的凹槽部分接收器。 该设备还包括光学传感器单元，其将钻头的尖端和刀片部分与钻头支撑机构相接触，即脱离砂轮台。 响应于从钻头切削唇的实际取向与期望的预定模板位置的比较接收到的误差校正伺服命令信号，钻头支撑机构中的旋转和线性致动器将钻头旋转到适当的角度定向，并且前进 轴位置到预定的突出长度。 此外，到槽纹部分接收器的命令信号将钻头点升高到预定的高度，于是通过枢轴销与钻头支撑机构相连的线性致动器圆筒将其旋转，从而使适当定向的钻头与 研磨单元的砂轮。 在每个砂轮顺序地接触钻头的切割边缘和点并将接触的区域重新显现为期望的清晰度之后，线性致动器圆柱体用于将钻头支撑机构旋转到离线位置，于是柄 保持架垂直远离钻头柄枢转，允许重新调节的钻头被移除并被另一个位重新定位。

公开(公告)号：US06260701B1

公开(公告)日：2001-07-17

申请号：US09183721

申请日：1998-10-30

申请人： Ichiro Katayama ,  Yoshiharu Shinbo

发明人： Ichiro Katayama ,  Yoshiharu Shinbo

IPC分类号： B65D8528

CPC分类号： B25H3/003 ,  Y10S206/815 ,  Y10S312/902

摘要： A drill case (10) includes a case box (20) having a longitudinally elongated rectangular cross-sectional shape closeable at one transverse end thereof by a lid (23). The case includes a slidably removable longitudinally elongated drill stand base (50) having in the upper surface thereof a plurality of longitudinally disposed, laterally spaced apart grooves (51) for receiving rectangular block-shaped drill stands (60) having longitudinally spaced apart vertical bores (61) for receiving drill bits (1). Stand base (50) has protruding outwardly from opposite lateral sides thereof a pair of parallel longitudinally disposed ribs (52) which are slidably receivable in a pair of upper or lower grooves (27) and (28) formed in the inner side walls of box (20), depending on whether short or long shank drill bits are contained in stands (60). Case (10) includes a shank retainer (70) for protecting the tips, including the cutting lips and points, of drill bits in drill stands (60), the retainer having through its thickness dimension a plurality of longitudinally and vertically disposed grooves (72) for receiving the tips of drill bits. Retainer (70) has a front end provided with a transversely disposed, front upper web (73F), and a rear end having a rear lower web (73R). Grooves (72) in retainer (70) have tapered lower entrance openings (90) for receiving the tapered transition section (5) between a drill bit shank (3) and tip (2), and cylindrical upper entrance openings (89) for receiving the shanks of drill bits. Two pairs of longitudinally disposed ribs (74) protruding from both upper and lower edges of retainer (70) are engageable with grooves (30) in box (20) with the retainer in either an upright or inverted position, thus configuring the case with tapered entrance openings facing downward to receive tapered transition sections of drill bits and thereby limit their movement, or with the cylindrical openings facing downward to receive the shanks of bits provided with insertion depth limiting rings.