JPS6416379A - Controller for clamping force of screw driver - Google Patents
Controller for clamping force of screw driverInfo
- 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
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (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.
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)
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)
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 |
-
1987
- 1987-07-09 JP JP17199887A patent/JPS6416379A/en active Pending
Patent Citations (2)
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)
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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