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    • 1. 发明公开
    • Method of and apparatus for centering integrated circuit lead frame
    • Verfahren undGerätzum Zentrieren von Leiterrahmen integrierter Schaltungen
    • EP0688154A3
    • 1996-07-17
    • EP95109040.6
    • 1995-06-12
    • Ishii Tool & Engineering Corporation
    • Ishii, Mithoshi
    • H05H13/02
    • B23P19/10B23P19/12H01L21/68H01L2924/0002H05K13/022Y10T29/4913Y10T29/53004Y10T29/53178H01L2924/00
    • An IC lead frame centering method and apparatus whereby centering plates are automatically positioned to center various types of IC. With a screw driver (2) held with a hand, projections (48) of a rotating shaft (45) are inserted into driving bores (29) of a socket wrench (25), and pushed therein toward the socket wrench (25). The pressure causes the socket wrench (25) to slide on a screw rod (7) while compressing a coil spring (30). At the same time, the pressure causes the rotating shaft (45) to compress a coil spring (51), and also causes a cylindrical portion (47) of the rotating shaft (45) to move. The movement of the cylindrical portion (47) is detected by a start switch (52). Consequently, a servomotor (41) is started to drive the screw rod (7) to rotate, causing centering plates (16 and 17) to move away from each other until the centering plate 17 is detected by a mechanical origin sensor (24). The coordinate position of the centering plate (17) is recognized as a mechanical origin, and the centering plates (16 and 17) are moved from this position to a position at which the space therebetween conforms to the width of the IC, which has previously been stored in a centering position memory.
    • 一种IC引线框定心方法和装置,其中定心板自动定位成使各种类型的IC居中。 在用手握住螺丝刀(2)的情况下,将旋转轴(45)的突起(48)插入到套筒扳手(25)的驱动孔(29)中,并将其推向套筒扳手(25)。 压力使得套筒扳手(25)在螺旋弹簧(30)压缩的同时在螺杆(7)上滑动。 同时,压力使旋转轴(45)压缩螺旋弹簧(51),并且还使得旋转轴(45)的圆筒部分(47)移动。 圆筒部(47)的移动由起动开关(52)检测。 因此,启动伺服电机(41)以驱动螺杆(7)旋转,使定心板(16和17)彼此远离移动,直到定心板17被机械原点传感器(24)检测到。 定心板(17)的坐标位置被认为是机械原点,并且定心板(16和17)从该位置移动到它们之间的空间符合先前已经具有的IC宽度的位置 被存储在定心位置存储器中。