JPS59143664U - electric screwdriver - Google Patents
electric screwdriverInfo
- Publication number
- JPS59143664U JPS59143664U JP1983036643U JP3664383U JPS59143664U JP S59143664 U JPS59143664 U JP S59143664U JP 1983036643 U JP1983036643 U JP 1983036643U JP 3664383 U JP3664383 U JP 3664383U JP S59143664 U JPS59143664 U JP S59143664U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- power supply
- electric screwdriver
- speed command
- control unit
- 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
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の電動ドライバの一実施例の要部構成を
示す回路図、第２図は第１図の回路構成におけるモータ
に加わる電圧の波形図で、同図ａはモータの回転速度が
速い時、ｂは回転速度が遅い時を示している。
１・・・・・・直流モータ、２・・・・・・主電源部、
３・・・・・・半導体スイッチ素子、４・・・・・・制
御部、５・・・・・・補助電源部、４０・・・・・・指
令信号発生回路、４１・・・・・・点弧回路、４２・・
・・・・移相器、４３・・・・・・速度指令可変抵抗器
。Fig. 1 is a circuit diagram showing the main part configuration of an embodiment of the electric driver of the present invention, Fig. 2 is a waveform diagram of the voltage applied to the motor in the circuit configuration of Fig. 1, and Fig. 2a shows the rotational speed of the motor. When is fast, b indicates when the rotation speed is slow. 1...DC motor, 2...Main power supply section,
3...Semiconductor switch element, 4...Control unit, 5...Auxiliary power supply unit, 40...Command signal generation circuit, 41...・Ignition circuit, 42...
... Phase shifter, 43 ... Speed command variable resistor.
Claims (1)
ータに駆動用電力を与えるための整流スタックを有する
主電源部と、 該主電源部から上記直流モータへ与えられる駆動用電力
を制御するための半導体スイッチ素子と、該半導体スイ
ッチ素子のスイッチングを制御する指令信号を発生する
制御部と、 該制御部を動作させるための直流電圧を発生する整流ス
タックを有する補助電源部と、を備えて構成される電動
ドライバであって、上記制御部は上記補助電源部の出力
電圧を分圧し所望の回転速度指令用電圧を取出す速度指
令可変抵抗器と、指令信号発生回路とを具備し、該指令
信号発生回路に上記速度指令可変抵抗器から取出した回
転速度指令用電圧を入力して上記直流モータの回転速度
を所望の値に制御可能にしたことを特徴とする電動ドラ
イバ。[Scope of Claim for Utility Model Registration] A main body of an electric screwdriver to which a bit is attached and rotated, a DC motor for rotational driving of the electric screwdriver, and a main power supply section having a rectifier stack for supplying driving power to the DC motor. , a semiconductor switch element for controlling driving power given to the DC motor from the main power supply unit; a control unit that generates a command signal to control switching of the semiconductor switch element; and a control unit for operating the control unit. an auxiliary power supply section having a rectifier stack that generates a DC voltage, the control section dividing the output voltage of the auxiliary power supply section to obtain a desired rotation speed command voltage. A speed command variable resistor and a command signal generation circuit are provided, and a rotation speed command voltage taken out from the speed command variable resistor is inputted to the command signal generation circuit to set the rotation speed of the DC motor to a desired value. An electric screwdriver characterized by being able to be controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983036643U JPS59143664U (en) | 1983-03-14 | 1983-03-14 | electric screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983036643U JPS59143664U (en) | 1983-03-14 | 1983-03-14 | electric screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59143664U true JPS59143664U (en) | 1984-09-26 |
Family
ID=30167308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983036643U Pending JPS59143664U (en) | 1983-03-14 | 1983-03-14 | electric screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59143664U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57144672A (en) * | 1981-02-24 | 1982-09-07 | Shibaura Eng Works Ltd | Clamping device |
-
1983
- 1983-03-14 JP JP1983036643U patent/JPS59143664U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57144672A (en) * | 1981-02-24 | 1982-09-07 | Shibaura Eng Works Ltd | Clamping device |
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