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    • 7. 发明公开
    • Tightening device and tightening method
    • Schraubvorrichtung und Schraubverfahren
    • EP2873487A1
    • 2015-05-20
    • EP14190734.5
    • 2014-10-28
    • Tone Co., Ltd.Fuji Jukogyo Kabushiki Kaisha
    • Fujimoto, KatsuhiroKushida, ToshihikoHirai, TatsuoTorigai, YukioNakahata, TatsuoSaito, ManabuWatanabe, Masao
    • B25B23/147B60B29/00
    • A tightening device (20) and a tightening method are able to check that a fastening member has been fastened to a desired set torque or greater after being tightened, without loosening the fastening member. The tightening device (20) executes a first tightening process of adjusting the output of a motor (24) after measured torque that is measured by a torque detector (50) has reached a preset first control start torque (VF), such that the measured torque reaches a preset first set torque in a phased manner through repeated increases and decreases in torque, and blocking power supply to the motor (24) when the measured torque reaches the first set torque, and then executes a second tightening process of driving the motor at an initial output (VO) that is less than in the first tightening process, adjusting the output of the motor after the measured torque that is measured by the torque detector has reached a preset second control start torque, such that the measured torque reaches a preset second set torque in a phased manner through repeated increases and decreases in torque, and blocking power supply to the motor (24) when the measured torque reaches the second set torque.
    • 紧固装置(20)和紧固方法能够检查紧固构件在紧固之后已被紧固到所需的设定扭矩或更大,而不松开紧固构件。 紧固装置(20)在由转矩检测器(50)测量的测量转矩达到预设的第一控制开始转矩(VF)之后,执行调整电动机(24)的输出的第一收紧处理, 扭矩通过反复增加和减少扭矩以相位方式达到预设的第一设定扭矩,并且当所测量的扭矩达到第一设定扭矩时阻断对电动机(24)的供电,然后执行驱动电动机的第二紧固过程 在初始输出(VO)小于第一紧固过程中的初始输出(VO)时,在由扭矩检测器测量的测量转矩达到预设的第二控制启动转矩之后调整电动机的输出,使得测得的转矩达到 通过反复增加和减少扭矩以相位方式预设第二设定扭矩,并且当所测量的扭矩达到第二设定扭矩时阻断对电动机(24)的供电。