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公开(公告)号：US5366026A
公开(公告)日：1994-11-22
申请号：US112362
申请日：1993-08-27
申请人： Junichi Maruyama , Teruo Fukumura , Toru Takeuchi
发明人： Junichi Maruyama , Teruo Fukumura , Toru Takeuchi
IPC分类号： B23P19/06 , B25B23/14 , B25B23/151 , G05D17/02
CPC分类号： G05D17/02 , B23P19/066 , B25B23/1405
摘要： In an impact type clamping apparatus including a motor unit for generating a pulsatory driving torque, a main spindle driven by said pulsatory driving torque to rotate a fastening member, a detecting unit for detecting a pulsatory torque applied to the main spindle, a calculating circuit for calculating a clamping force in accordance with a peak value of the pulsatory torque, and a control unit for stopping the operation of said motor unit when the calculated clamping force exceeds a desired clamping force, said clamping force is calculated not only from the peak value of the pulsatory torque but also from an increasing coefficient which represents a relationship between the peak value of the pulsatory torque and an increment of the clamping force. The increasing coefficient is gradually decreased in accordance with the increase in the clamping force, so that the clamping force can be calculated very accurately and the fastening member can be clamped with an actual clamping force which is very close to the desired clamping force.
摘要翻译： 在包括用于产生脉动驱动扭矩的马达单元的冲击式夹紧装置中，由所述脉动驱动扭矩驱动的主轴使紧固构件旋转的检测单元，用于检测施加于主轴的脉动转矩的检测单元， 根据脉动扭矩的峰值计算夹紧力;以及控制单元，用于当计算出的夹紧力超过期望的夹紧力时停止所述马达单元的操作，所述夹紧力不仅从 脉动转矩也来自表示脉动转矩的峰值与夹紧力的增量之间的关系的增加系数。 根据夹紧力的增加，增加的系数逐渐减小，从而可以非常精确地计算夹紧力，并且可以以非常接近期望夹紧力的实际夹紧力夹紧紧固构件。
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公开(公告)号：US5181575A
公开(公告)日：1993-01-26
申请号：US848144
申请日：1992-03-09
CPC分类号： B25B23/1456 , B25B23/1453 , G01L3/102 , G01L3/105
摘要： An impact wrench with a torque controlling faculty including an air motor for generating a primary torque, an oil pressure pulse generating unit for converting the primary torque into a pulsatory secondary torque, a main spindle to which the pulsatory secondary torque is applied, a transducer for detecting the pulsatory secondary torque and a shut-off valve which is closed to stop a supply of a compressed air to the air motor when the secondary torque exceeds a predetermined threshold value. The main spindle is made of material having the magnetic strictive effect and the distortion of the main spindle is detected by a pair of coils arranged in opposition to the main spindle. The coils are connected into a bridge circuit together with resistors and an exciting current having a sinusoidal waveform is supplied to a first set of diagonal points of the bridge circuit. A voltage appearing across a second set of diagonal points is detected to produce a torque detection signal which represents the pulsatory secondary torque. Then the torque detection signal is sampled and held at a predetermined phase which is fixedly related to a phase of the exciting current to produce a torque measurement signal which represents a peak value of the pulsatory secondary torque applied to the main spindle.
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公开(公告)号：US06267919B1
公开(公告)日：2001-07-31
申请号：US09251465
申请日：1999-02-17
IPC分类号： B29C3508
CPC分类号： B29C64/40 , B29C64/135 , G05B2219/34116 , G05B2219/34117 , G05B2219/49013
摘要： A three-dimensional object is produced by sequentially laminating a plurality of layers. The method includes setting a plurality of coordinate points at a predetermined interval on a profile of a model section corresponding to a layer to be formed, obtaining information regarding distances between a plurality of the coordinate points, and scanning a photo-curing resin solution with light from a light source, in correspondence with a direction of a straight line passing through mated coordinate points giving a distance shorter than a maximum value among the distances between a plurality of the coordinate points.
摘要翻译： 通过依次层叠多个层来制造三维物体。 该方法包括在与要形成的层相对应的模型部分的轮廓上以预定间隔设置多个坐标点，获得关于多个坐标点之间的距离的信息，以及用光照射光固化树脂溶液 对应于在多个坐标点之间的距离之间通过配对坐标点的直线的方向与距离最小值相距一定的距离。
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