JPH03120005U - - Google Patents
Info
- Publication number
- JPH03120005U JPH03120005U JP3033690U JP3033690U JPH03120005U JP H03120005 U JPH03120005 U JP H03120005U JP 3033690 U JP3033690 U JP 3033690U JP 3033690 U JP3033690 U JP 3033690U JP H03120005 U JPH03120005 U JP H03120005U
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- thyristor
- power supply
- coils
- circuit
- 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
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の他の実施例を示す回路図、第３図は
従来の永電磁チヤツク用電源回路を示す図である
。
２……開閉器、３……限流抵抗、４……コンデ
ンサ、Ｓ……サイリスタ、Ｍ……チヤツクコイル
。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
This figure is a circuit diagram showing another embodiment of the present invention, and FIG. 3 is a diagram showing a conventional power supply circuit for a permanent electromagnetic chuck. 2... Switch, 3... Current limiting resistor, 4... Capacitor, S... Thyristor, M... Check coil.
Claims (1)
るための永電磁チヤツク用電源装置において、 交流電源から給電される整流器と、 少なくとも２つのサイリスタアームが直列接続
されてなる枝路を少なくとも３個有するサイリス
タブリツジ回路として構成され、前記整流器の出
力側に接続されたスイツチング回路と、 このスイツチング回路における前記枝路のサイ
リスタアーム相互接続点に接続された少なくとも
３個のチヤツクコイル接続用端子と、 をそなえ、 前記チヤツク接続用端子間に少なくとも２個の
チヤツクコイルを接続して前記サイリスタブリツ
ジ回路から順方向あるいは逆方向に瞬時通電する
ようにしたことを特徴とする永電磁チヤツク用電
源装置。[Claims for Utility Model Registration] A power supply device for a permanent electromagnetic chuck for instantaneously supplying power to at least two chuck coils, which includes a branch circuit in which a rectifier fed from an AC power supply and at least two thyristor arms are connected in series. a switching circuit configured as a thyristor bridge circuit having at least three thyristor bridge circuits and connected to the output side of the rectifier; and at least three chuck coil connection terminals connected to the thyristor arm interconnection points of the branches of the switching circuit. A power supply device for a permanent electromagnetic chuck, characterized in that at least two chuck coils are connected between the chuck connection terminals so that current is instantaneously supplied from the thyristor bridge circuit in the forward or reverse direction. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3033690U JPH03120005U (en) | 1990-03-23 | 1990-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3033690U JPH03120005U (en) | 1990-03-23 | 1990-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120005U true JPH03120005U (en) | 1991-12-10 |
Family
ID=31533055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3033690U Pending JPH03120005U (en) | 1990-03-23 | 1990-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013232643A (en) * | 2012-04-30 | 2013-11-14 | Boeing Co:The | Clamp assembly including permanent magnets and coils for selectively magnetizing and demagnetizing said magnets |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157750A (en) * | 1985-12-28 | 1987-07-13 | Kanetsuu Kogyo Kk | Magnetic chuck and method/device for its energization |
| JPS62241308A (en) * | 1986-04-11 | 1987-10-22 | Miki Puurii Kk | Coil control circuit of electromagnetic clutch and brake |
| JPH0230448A (en) * | 1988-07-20 | 1990-01-31 | Fuji Jikou Kk | Demagnetization device for electromagnetic chuck |
-
1990
- 1990-03-23 JP JP3033690U patent/JPH03120005U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157750A (en) * | 1985-12-28 | 1987-07-13 | Kanetsuu Kogyo Kk | Magnetic chuck and method/device for its energization |
| JPS62241308A (en) * | 1986-04-11 | 1987-10-22 | Miki Puurii Kk | Coil control circuit of electromagnetic clutch and brake |
| JPH0230448A (en) * | 1988-07-20 | 1990-01-31 | Fuji Jikou Kk | Demagnetization device for electromagnetic chuck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013232643A (en) * | 2012-04-30 | 2013-11-14 | Boeing Co:The | Clamp assembly including permanent magnets and coils for selectively magnetizing and demagnetizing said magnets |
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