JPS645745A - Multishaft thread fastening device - Google Patents
Multishaft thread fastening deviceInfo
- Publication number
- JPS645745A JPS645745A JP16071087A JP16071087A JPS645745A JP S645745 A JPS645745 A JP S645745A JP 16071087 A JP16071087 A JP 16071087A JP 16071087 A JP16071087 A JP 16071087A JP S645745 A JPS645745 A JP S645745A
- Authority
- JP
- Japan
- Prior art keywords
- detecting
- completion
- shafts
- motor
- rotation
- 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.)
- Granted
Links
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
PURPOSE:To hold all the shafts at a constant tightening torque by providing an all shaft tightening completion detecting part which generates a detecting signal for disconnecting supply of normal rotation voltage by actuating changing means when it receives a detecting signal from a rotation stoppage detecting means for each shaft. CONSTITUTION:If a driver bit 6 stops rotating, a detecting signal is generated from a rotation stoppage detecting means 30, and this condition is held until detecting signals are generated from rotation stoppage detecting means 30 for all the shafts regardless of time after completion of the first completion of tightening. If the detecting signals are generated form all the shafts, changing means 23 operate immediately to disconnect supply of normal rotation voltage to a motor 8. At this time, a cam disc is kept as it is locked by wedge action, and a driver bit outputs a value of a tightening torque. After that, a revere rotation voltage is supplied to the motor 8 for just a little time, so the motor 8 rotates reversely just a little until it stops, when a speed change ring returns to its original position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16071087A JPS645745A (en) | 1987-06-26 | 1987-06-26 | Multishaft thread fastening device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16071087A JPS645745A (en) | 1987-06-26 | 1987-06-26 | Multishaft thread fastening device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS645745A true JPS645745A (en) | 1989-01-10 |
JPH0478422B2 JPH0478422B2 (en) | 1992-12-11 |
Family
ID=15720796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16071087A Granted JPS645745A (en) | 1987-06-26 | 1987-06-26 | Multishaft thread fastening device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645745A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5856739A (en) * | 1981-09-26 | 1983-04-04 | Nitto Seiko Co Ltd | Multiple shaft screw fastener |
JPS62166931A (en) * | 1986-01-20 | 1987-07-23 | Shinpo Kogyo Kk | Automatic screw fastening machine |
-
1987
- 1987-06-26 JP JP16071087A patent/JPS645745A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5856739A (en) * | 1981-09-26 | 1983-04-04 | Nitto Seiko Co Ltd | Multiple shaft screw fastener |
JPS62166931A (en) * | 1986-01-20 | 1987-07-23 | Shinpo Kogyo Kk | Automatic screw fastening machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0478422B2 (en) | 1992-12-11 |
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