CN204761353U - Electromagnet fills and returns magnetic controller - Google Patents
Electromagnet fills and returns magnetic controller Download PDFInfo
- Publication number
- CN204761353U CN204761353U CN201520215586.3U CN201520215586U CN204761353U CN 204761353 U CN204761353 U CN 204761353U CN 201520215586 U CN201520215586 U CN 201520215586U CN 204761353 U CN204761353 U CN 204761353U
- Authority
- CN
- China
- Prior art keywords
- silicon controlled
- controlled rectifier
- magnechuck
- fills
- gthyristor
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an electromagnet fills and returns magnetic controller, including silicon controlled rectifier rectifier unit, silicon controlled rectifier rectifier unit comprises 2 anti - parallel connection's gthyristor including parallel connection's gthyristor group and the 2nd gthyristor group, each gthyristor group, and each gthyristor has electromagnet through the relay series connection respectively, the utility model discloses can be according to the break -make of the angle of flow with the silicon controlled rectifier that fills the two sets of inverse parallels of demagnetization time control when using to the two sets of electromagnet's of simultaneous control magnetizes and demagnetizes output current, realizes that the best fills the demagnetization effect.
Description
Technical field
The utility model relates to field of electrical control, is specifically related to a kind of magnechuck and fills and return magnetic controller.
Background technology
Many lathes (as grinding machine, mirror bed etc.) all need to be fixed on work top by absorption of workpieces with magnechuck when processing work.Now need magnechuck to fill to return magnetic controller to fill magnechuck, return magnetic control.When magnetizing, magnechuck fill return magnetic controller can according to the shape of processing work, size need for magnechuck provides different exciting currents; When returning magnetic, magnechuck fill return that magnetic controller needs outbound course checker, amplitude reduces gradually returns magnetoelectricity stream.Conventional magnechuck fills that to return magnetic controller be, after AC power is rectified into direct current, is undertaken filling return magnetic control by contact switch switched energization senses of current such as contactors, the easy ablation of electric shock of this circuit, reduction of service life; Another kind of magnechuck fills that to return magnetic controller be first AC power is rectified into direct current, then converts the DC power supply of direction-agile to inverter circuit, and this circuit is comparatively complicated, and failure rate is high.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of simple and reliable and adjustment operation easily magnechuck fill and return magnetic controller.
For solving the problem, technical solution adopted in the utility model is as follows:
A kind of magnechuck fills and returns time magnetic controller, comprise silicon controlled rectifying unit, it is characterized in that: described silicon controlled rectifying unit includes the first silicon controlled rectifier group and the second silicon controlled rectifier group that are connected in parallel, the silicon controlled rectifier that described each silicon controlled rectifier group is connected by 2 inverse parallels is formed, and described each silicon controlled rectifier is connected in series with magnechuck respectively by relay.
Preferably, described AC power one end is provided with relay.
The utility model is for the work characteristics of magnechuck, according to the angle of flow and the antiparallel silicon controlled break-make of demagnetization time controling two groups can be filled in use, thus control magnetizing and the output current that demagnetizes of two groups of magnechucks simultaneously, what realize the best fills demagnetization effectiveness.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
As shown in Figure 1, a kind of magnechuck fills and returns magnetic controller, it forms primarily of SCR rectification circuit, 5 relay K 1-K5 and 4 magnechuck YH1-YH4, wherein SCR rectification circuit is connected to form by the first silicon controlled rectifier SCR1 and the 3rd silicon controlled rectifier SCR3, the second silicon controlled rectifier SCR2 and the mutual inverse parallel of the 4th silicon controlled rectifier SCR4, each silicon controlled rectifier SCR1-SCR4 to connect with 4 magnechuck YH1-YH4 respectively by 4 relay K 1-K4 and accesses AC power U, V two ends, and AC power V end is also provided with relay K 5.
During work, closing relay K5, this magnechuck fills the silicon controlled rectifier returning the mutual inverse parallel connection of magnetic controller two groups and forms two output channels, and each passage has two-way load magnechuck YH1, YH3 and YH2, YH4.When selection wherein a certain road, as: when relay K 1, K3 close, when magnetizing, exchanging the positive half cycle of input, silicon controlled rectifier SCR2 conducting, magnechuck YH1 load is energized, exchanging the negative half period of input, silicon controlled rectifier SCR4 conducting, magnechuck YH3 load is energized, and what now flow through in magnechuck YH1 and magnechuck YH3 is all forward current; During demagnetization, silicon controlled rectifier SCR2, silicon controlled rectifier SCR4 and silicon controlled rectifier SCR1, silicon controlled rectifier SCR3 replace admittance, when silicon controlled rectifier SCR2, silicon controlled rectifier SCR4 admittance, what flow through in magnechuck YH2 and magnechuck YH4 is all forward current, in like manner, when silicon controlled rectifier SCR1, silicon controlled rectifier SCR3 admittance, what flow through in magnechuck YH1 and magnechuck YH3 is all negative current, what namely flow through in load is positive and negative alternately change, the current signal that amplitude decays gradually.
Claims (1)
1. a magnechuck fills and returns magnetic controller, comprise silicon controlled rectifying unit, it is characterized in that: described silicon controlled rectifying unit includes the first silicon controlled rectifier group and the second silicon controlled rectifier group that are connected in parallel, the silicon controlled rectifier that described each silicon controlled rectifier group connects by 2 inverse parallels is formed, and described each silicon controlled rectifier is connected in series with magnechuck respectively by relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215586.3U CN204761353U (en) | 2015-04-10 | 2015-04-10 | Electromagnet fills and returns magnetic controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520215586.3U CN204761353U (en) | 2015-04-10 | 2015-04-10 | Electromagnet fills and returns magnetic controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761353U true CN204761353U (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520215586.3U Expired - Fee Related CN204761353U (en) | 2015-04-10 | 2015-04-10 | Electromagnet fills and returns magnetic controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509917A (en) * | 2020-03-31 | 2020-08-07 | 江苏大学 | Magnetizing and demagnetizing control device and method for permanent magnet synchronous motor |
-
2015
- 2015-04-10 CN CN201520215586.3U patent/CN204761353U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509917A (en) * | 2020-03-31 | 2020-08-07 | 江苏大学 | Magnetizing and demagnetizing control device and method for permanent magnet synchronous motor |
| CN111509917B (en) * | 2020-03-31 | 2021-06-18 | 江苏大学 | Magnetizing and demagnetizing control device and method for permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20170410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |