JPS6416379A - Controller for clamping force of screw driver - Google Patents

Controller for clamping force of screw driver

Info

Publication number
JPS6416379A
JPS6416379A JP17199887A JP17199887A JPS6416379A JP S6416379 A JPS6416379 A JP S6416379A JP 17199887 A JP17199887 A JP 17199887A JP 17199887 A JP17199887 A JP 17199887A JP S6416379 A JPS6416379 A JP S6416379A
Authority
JP
Japan
Prior art keywords
seating
servo motor
angle
controller
miniaturize
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17199887A
Other languages
Japanese (ja)
Inventor
Sadakazu Sugiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP17199887A priority Critical patent/JPS6416379A/en
Publication of JPS6416379A publication Critical patent/JPS6416379A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

PURPOSE: To improve durability of a sensor part and miniaturize a device by detecting seating from the output of a magneto-striction type noncontact torque sensor, and supplying a preset rotation angle command to a servo motor from the time point of seating. CONSTITUTION: Simultaneously with clockwise rotation of a nut runner 1 by a start command of a controller 15, output of a magneto-striction type noncontact torque sensor 9 is monitored. When a nut N is seated, its torque Ta exceeds the set value T, and a seating signal P is outputted from a seating detecting circuit 16. A pulse generator 17 therefore outputs a set angle θ set to a setting element 18, to a servo motor 2 through a deviation counter, a digital-to-analog converter and a servo amplifier. The angle of rotation is detected by a pulse generator 8, and the servo motor 2 is stopped upon reaching the set angle θ. Durability of a sensor part is therfore improved, and a slip ring is dispensed with so as to miniaturize a device.
JP17199887A 1987-07-09 1987-07-09 Controller for clamping force of screw driver Pending JPS6416379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17199887A JPS6416379A (en) 1987-07-09 1987-07-09 Controller for clamping force of screw driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17199887A JPS6416379A (en) 1987-07-09 1987-07-09 Controller for clamping force of screw driver

Publications (1)

Publication Number Publication Date
JPS6416379A true JPS6416379A (en) 1989-01-19

Family

ID=15933631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17199887A Pending JPS6416379A (en) 1987-07-09 1987-07-09 Controller for clamping force of screw driver

Country Status (1)

Country Link
JP (1) JPS6416379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04115877A (en) * 1990-09-03 1992-04-16 Yokota Kogyo Kk Control unit for fastening torque of impulse wrench

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234795A (en) * 1975-06-19 1977-03-16 Nippon Miniature Bearing Co Detecting apparatus for fluid concentration
JPS59348A (en) * 1982-06-25 1984-01-05 Toshiba Corp Centrifugal separator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234795A (en) * 1975-06-19 1977-03-16 Nippon Miniature Bearing Co Detecting apparatus for fluid concentration
JPS59348A (en) * 1982-06-25 1984-01-05 Toshiba Corp Centrifugal separator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04115877A (en) * 1990-09-03 1992-04-16 Yokota Kogyo Kk Control unit for fastening torque of impulse wrench

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