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公开(公告)号：US20160116897A1
公开(公告)日：2016-04-28
申请号：US14893782
申请日：2014-05-20
发明人： Shiro ANDO , Makoto ASHIKAGA , Masahiro TASAKA , Hisashi RYOTA
CPC分类号： G05B19/186 , B23P19/066 , B25B21/008 , B25B21/02 , B25B23/1405 , G05B15/02 , G05B2219/37344
摘要： A control method according to an aspect of the invention includes a process for setting target fastening torque, a pulse interval of neighboring pulses, and an elevated value of torque per pulse, detecting last fastening torque at an Nth pulse (N is a natural number of 1 or more) after seating of a fastening member, setting pulse loading time at an N+1th pulse and pulse strength at the N+1th pulse based on the last fastening torque at the Nth pulse so that fastening torque at the N+1th pulse coincides with a multiple of the elevated value, controlling a fastening tool based on the pulse interval, the pulse loading time, and the pulse strength so that last fastening torque at an N+Mth pulse (M is a natural number of 1 or more) reaches target fastening torque.
摘要翻译： 根据本发明的一个方面的控制方法包括设置目标紧固扭矩，相邻脉冲的脉冲间隔和每脉冲扭矩的升高值的过程，检测第N脉冲的最后紧固扭矩（N是自然数 1或更多），在第N + 1个脉冲设置脉冲加载时间和第N + 1个脉冲的脉冲强度时，基于第N个脉冲的最后一个紧固扭矩，使得在第N + 1个脉冲的紧固扭矩 与升高值的倍数一致，基于脉冲间隔，脉冲加载时间和脉冲强度来控制紧固工具，使得在N + Mth脉冲（M为1或更多的自然数）的最后紧固扭矩， 达到目标紧固扭矩。
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公开(公告)号：US20200376633A1
公开(公告)日：2020-12-03
申请号：US16789750
申请日：2020-02-13
发明人： Hisashi RYOTA , Kotaro URATA
摘要： A nutrunner includes a motor, an angle sensor, a vibration sensor, and a control unit (controller) that drives and controls the motor. While male and female screws are pressed against each other in an axial direction, the motor is rotated in a reverse direction to a screw tightening direction, and impact forces generated at that time from a periodic collision between threaded openings are detected by the vibration sensor. When the vibration sensor detects the impact force at least two consecutive times, and a difference angle between a rotation angle of the angle sensor at a first detection and a rotation angle of the angle sensor at a second detection coincides with a theoretical angle period of the periodic collision, the motor is switched to a forward rotation.
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公开(公告)号：US20230302613A1
公开(公告)日：2023-09-28
申请号：US18020759
申请日：2020-10-13
发明人： Hisashi RYOTA , Shigenori ONISHI
IPC分类号： B25B23/147 , G06T7/73
CPC分类号： B25B23/147 , G06T7/74 , G06T2207/30204
摘要： A control system 100 for a tightener (nut runner 10) of the present invention includes a marker M provided on the tightener, a camera 31 (32) that remotely images the marker M and detects a position of the tightener, and a controller that stores a target tightening torque value of a plurality of tightened members (bolts B) together with position information of the tightened members, and sets a tightening torque value of the tightener for each of the tightened members to be tightened by the tightener on the basis of the position of the tightener detected by the camera.
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