CN214705608U - Magnetizing and demagnetizing control device for electric permanent magnetic chuck - Google Patents
Magnetizing and demagnetizing control device for electric permanent magnetic chuck Download PDFInfo
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- CN214705608U CN214705608U CN202120443685.2U CN202120443685U CN214705608U CN 214705608 U CN214705608 U CN 214705608U CN 202120443685 U CN202120443685 U CN 202120443685U CN 214705608 U CN214705608 U CN 214705608U
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Abstract
The utility model provides an electric permanent magnetic chuck magnetizing and demagnetizing control device belongs to electric permanent magnetic chuck magnetizing and demagnetizing control field. The electric permanent magnet sucker magnetizing and demagnetizing control device comprises a power supply, an MCU module, a magnetizing and demagnetizing control module and a zero-crossing detection module, wherein the power supply is connected with the zero-crossing detection module, the magnetizing and demagnetizing control module is connected with the electric permanent magnet sucker and used for controlling the magnetizing and demagnetizing of the electric permanent magnet sucker, and the MCU module is respectively connected with the zero-crossing detection module and the magnetizing and demagnetizing control module. The utility model provides an electric permanent magnetism sucking disc magnetization and demagnetization control device core module only includes the MCU module, fills demagnetization control module and zero cross detection module, and the configuration is simple, with low costs and operation safety, simple and convenient.
Description
Technical Field
The utility model relates to an electric permanent magnet sucking disc magnetization and demagnetization control field, concretely relates to electric permanent magnet sucking disc magnetization and demagnetization control device.
Background
The working principle of the traditional electromagnetic chuck is that when the chuck is electrified, the chuck generates magnetism, so as to adsorb a workpiece; when the sucker is powered off, the sucker loses magnetism, and the workpiece falls off. The sucker needs to be in a power-on state all the time when carrying the workpiece, the power can be off until the workpiece is carried to a fixed point position, if the power is off in the process of carrying the workpiece, the sucker can drop the workpiece due to the loss of magnetism, and the safety is poor. The electric permanent magnetic chuck is a latest generation magnetic chuck technology and is characterized in that after being electrified, the chuck can always keep magnetism so as to always keep adsorption force, and after demagnetization is carried out, the chuck can lose magnetism so as to remove the adsorption force. In the working process of the electric permanent magnetic chuck, the magnet exciting coil of the chuck is electrified only when the chuck is magnetized or demagnetized, the magnet exciting coil is not electrified in other time, the electric energy is saved, the heating of the magnet exciting coil can be reduced, and the adsorption force of the chuck can be adjusted through the magnetizing current, so that the electric permanent magnetic chuck is widely applied to the fields of machining, automatic production lines, hoisting, loading and unloading and the like.
The electric permanent magnetic chuck control device is a core component of an electric permanent magnetic chuck, in the prior art, a magnetizing and demagnetizing control circuit is mostly composed of a relay and a silicon controlled rectifier, the circuit is complex and not high in completeness, the magnetic force of the chuck is unstable due to the fact that the current and the time of output are difficult to accurately control, the circuit breaks down, the silicon controlled rectifier cannot be closed in one period of a power supply, and the circuit is easily burnt out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric permanent magnetism sucking disc magnetization and demagnetization controlling means to solve the complicated and not high problem of security of electric permanent magnetism sucking disc magnetization and demagnetization controlling means circuit among the prior art.
In order to solve the technical problem, the utility model provides a technical scheme does:
the device for controlling the magnetization and demagnetization of the electric permanent magnetic chuck comprises a power supply, an MCU (microprogrammed control unit) module, a magnetization and demagnetization control module and a zero-crossing detection module, wherein the power supply is connected with the zero-crossing detection module; the MCU module is respectively connected with the zero-crossing detection module and the magnetization and demagnetization control module.
The magnetizing and demagnetizing control module comprises an IGBT control circuit, a bridge rectifier circuit and a current detection circuit which are connected in sequence; the bridge rectifier circuit is connected with the electric permanent magnet magnetic chuck, and the MCU module is respectively connected with the IGBT control circuit and the current detection circuit.
The IGBT control circuit consists of one IGBT.
The magnetizing and demagnetizing control module further comprises a follow current circuit, the follow current circuit is connected to two ends of the IGBT control circuit in parallel, and the follow current circuit is used for follow current when the IGBT control circuit is switched off.
The free-wheeling circuit comprises a resistor R0 and a capacitor C0 which are connected; the power supply is divided into two paths, one path is connected with the zero-crossing detection module, and the other path is connected with the bridge rectifier circuit.
The zero-crossing detection module comprises a voltage stabilizing circuit and a zero-crossing signal generating circuit.
The voltage stabilizing circuit is a voltage stabilizing diode, the zero-crossing signal generating circuit is a zero-crossing signal generating triode, and the voltage stabilizing diode is connected with the zero-crossing signal generating triode in parallel.
The electromagnetic chuck magnetizing and demagnetizing control device further comprises a magnetic field intensity sensor and a temperature sensor; the magnetic field intensity sensor is used for detecting the magnetic field intensity of the electric permanent magnetic chuck, and the temperature sensor is used for detecting the local temperature of the electric permanent magnetic chuck; the magnetic field intensity sensor and the temperature sensor are respectively connected with the MCU module.
The electric permanent magnetic chuck magnetizing and demagnetizing control device further comprises a chuck position sensor, wherein the position sensor is connected with the MCU module and used for transmitting a chuck position change signal to the MCU module.
The permanent magnetic chuck magnetizing and demagnetizing control device further comprises a command input module and a digital display module; the instruction input module, the digital display module and the MCU module are connected in sequence.
The utility model has the advantages that:
(1) the utility model provides an electric permanent magnetism sucking disc magnetization and demagnetization control device core module only includes the MCU module, fills demagnetization control module and zero cross detection module, and the configuration is simple and the operation is safe, simple and convenient.
(2) The utility model provides an electricity permanent magnetism sucking disc magnetization and demagnetization controlling means only needs bridge type rectifier circuit and IGBT control circuit can accomplish the operation of magnetizing and demagnetizing, directly with the demagnetization state of charging of IGBT circuit control output and switching electricity permanent magnetism sucking disc, can stop fast and fill the demagnetization operation, can play the guard action when circuit fault, the circuit is simple, safe and reliable, low cost has very big practical value.
(3) The utility model discloses used IGBT control circuit only comprises an IGBT, compares in the H bridge circuit of constituteing by 4 IGBTs, the utility model discloses IGBT control circuit has effectively been simplified.
(4) The follow current circuit connected with the IGBT control circuit in parallel is arranged in the magnetism charging and demagnetizing control module and used for follow current when the IGBT control circuit is switched off, so that the IGBT control circuit can be effectively protected, and the circuit is prevented from being damaged.
(5) And a voltage stabilizing diode in a voltage stabilizing circuit in the zero-crossing detection module plays a role of voltage clamping and is used for protecting the triode and the singlechip.
(6) The magnetic field intensity sensor is arranged to correlate the current on the electric permanent magnetic chuck with the magnetic field intensity and the magnetic force, and when in use, the current can be adjusted according to the magnetic force to be matched with the electric permanent magnetic chuck; the temperature sensor is arranged to monitor the temperature of the electric permanent magnetic chuck in real time, and the circuit is closed when the temperature exceeds a normal value, so that the whole electric permanent magnetic chuck magnetizing and demagnetizing control device is effectively protected.
(7) The arrangement of the sucker position sensor can monitor the positions of the sucker and the workpiece in real time, and damage caused by movement of the sucker and the workpiece is effectively prevented.
(8) The instruction input module and the digital display module are arranged to facilitate the user to input parameters and check real-time parameter changes.
Drawings
FIG. 1: the utility model provides an electric permanent magnetic chuck magnetization and demagnetization controlling means's principle schematic diagram.
FIG. 2: the utility model discloses fill demagnetization control circuit schematic diagram.
FIG. 3: the utility model discloses power zero passage detection circuit schematic diagram.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1 to 3, the utility model provides an electric permanent magnet chuck magnetizing and demagnetizing control device includes 220V/380V alternating current power supply, MCU (microcontroller Unit) module, fills demagnetization control module and zero cross detection module, and power and zero cross detection module link to each other. The magnetizing and demagnetizing control module sequentially comprises an Insulated Gate Bipolar Transistor (IGBT) control circuit, a bridge rectifier circuit and a current detection circuit which are connected, the bridge rectifier circuit is connected with an electric permanent magnetic chuck and used for controlling the magnetizing and demagnetizing of the electric permanent magnetic chuck, and the MCU module is respectively connected with the IGBT control circuit and the current detection circuit. The IGBT control circuit consists of an IGBT, the magnetizing and demagnetizing control module is further provided with a follow current circuit connected with two ends of the IGBT control circuit in parallel, the follow current circuit comprises a resistor R0 and a capacitor C0 which are connected, and the follow current circuit is used for follow current when the IGBT control circuit is turned off. The zero-crossing detection module comprises a voltage stabilizing circuit and a zero-crossing signal generating circuit, the voltage stabilizing circuit is a voltage stabilizing diode, the zero-crossing signal generating circuit is a zero-crossing signal generating triode, the voltage stabilizing diode and the zero-crossing signal generating triode are arranged in parallel, and the zero-crossing detection module is connected with the MCU module. The power supply is divided into two paths, one path is connected with the zero-crossing detection module, and the other path is connected with the bridge rectifier circuit.
The specific operation process of the electric permanent magnetic chuck magnetizing and demagnetizing control device is as follows: the power becomes 50 HZ's square wave signal after the zero cross detection module, inputs the PA1 pin of MCU module, but real-time detection power zero cross time, and the switching on of IGBT control circuit can realize different voltage output through adjusting different delay time back at zero cross time is passed through to the PA0 pin of MCU module to the realization is to the different demagnetization intensity that fills of electric permanent magnetism sucking disc, and resistance R2 plays the effect of pulling down, avoids IGBT control circuit to trigger the foot unsettled. When the power waveform is positive half-wave, the IGBT control circuit is switched on, namely, the IGBT control circuit is magnetized, when the power waveform is negative half-wave, the IGBT control circuit is switched on, namely, the IGBT control circuit is demagnetized, and the resistor R0 and the capacitor C0 are used for follow current when the IGBT is switched off. In the process, the MCU can detect the loop current through the current detection circuit to judge whether the circuit is normal, when the current is detected to exceed a specified value, the circuit is in fault, and at the moment, the IGBT control circuit can be quickly turned off so as to protect the control device.
Example 2
As shown in fig. 1 to 3, the utility model provides an electric permanent magnet chuck magnetizing and demagnetizing control device includes 220V/380V alternating current power supply, MCU (microcontroller Unit) module, fills demagnetization control module and zero cross detection module, and power and zero cross detection module link to each other. The magnetizing and demagnetizing control module sequentially comprises an Insulated Gate Bipolar Transistor (IGBT) control circuit, a bridge rectifier circuit and a current detection circuit which are connected, the bridge rectifier circuit is connected with an electric permanent magnetic chuck and used for controlling the magnetizing and demagnetizing of the electric permanent magnetic chuck, and the MCU module is respectively connected with the IGBT control circuit and the current detection circuit. The IGBT control circuit consists of an IGBT, the magnetizing and demagnetizing control module is further provided with a follow current circuit connected with two ends of the IGBT control circuit in parallel, the follow current circuit comprises a resistor R0 and a capacitor C0 which are connected, and the follow current circuit is used for follow current when the IGBT control circuit is turned off. The zero-crossing detection module comprises a voltage stabilizing circuit and a zero-crossing signal generating circuit, the voltage stabilizing circuit is a voltage stabilizing diode, the zero-crossing signal generating circuit is a zero-crossing signal generating triode, the voltage stabilizing diode and the zero-crossing signal generating triode are arranged in parallel, and the zero-crossing detection module is connected with the MCU module. The power supply is divided into two paths, one path is connected with the zero-crossing detection module, and the other path is connected with the bridge rectifier circuit.
The permanent magnetic chuck magnetizing and demagnetizing control device is also provided with a magnetic field intensity sensor, a temperature sensor, a chuck position sensor, an instruction input module and a digital display module. Magnetic field intensity sensor is used for detecting electric permanent magnetism sucking disc magnetic field intensity, and temperature sensor is used for detecting electric permanent magnetism sucking disc local temperature, and sucking disc position sensor is used for monitoring the position of sucking disc and work piece, magnetic field intensity sensor, temperature sensor and sucking disc position sensor respectively with the MCU module links to each other. The instruction input module and the digital display module are used for inputting instructions and reading instructions by a user, and the instruction input module, the digital display module and the MCU module are connected in sequence.
The specific operation process of the electric permanent magnetic chuck magnetizing and demagnetizing control device is as follows: the power becomes 50 HZ's square wave signal after the zero cross detection module, inputs the PA1 pin of MCU module, but real-time detection power zero cross time, and the switching on of IGBT control circuit can realize different voltage output through adjusting different delay time back at zero cross time is passed through to the PA0 pin of MCU module to the realization is to the different demagnetization intensity that fills of electric permanent magnetism sucking disc, and resistance R2 plays the effect of pulling down, avoids IGBT control circuit to trigger the foot unsettled. When the power waveform is positive half-wave, the IGBT control circuit is switched on, namely, the IGBT control circuit is magnetized, when the power waveform is negative half-wave, the IGBT control circuit is switched on, namely, the IGBT control circuit is demagnetized, and the resistor R0 and the capacitor C0 are used for follow current when the IGBT is switched off. In the process, the MCU can detect the loop current through the current detection circuit to judge whether the circuit is normal, when the current is detected to exceed a specified value, the circuit is in fault, and at the moment, the IGBT control circuit can be quickly turned off so as to protect the control device. The temperature sensor is arranged to monitor the temperature of the electric permanent magnetic chuck in real time, the circuit is closed when the temperature exceeds a normal value, and the whole electric permanent magnetic chuck magnetizing and demagnetizing control device is effectively protected. The arrangement of the sucker position sensor is used for monitoring the positions of the sucker and the workpiece in real time, so that the sucker and the workpiece are effectively prevented from being damaged due to movement, and a user can input specific parameters and check real-time parameter changes through the instruction input module and the digital display module.
Claims (10)
1. The device for controlling the magnetization and demagnetization of the electric permanent magnetic chuck is characterized by comprising a power supply, an MCU module, a magnetization and demagnetization control module and a zero-crossing detection module, wherein the power supply is connected with the zero-crossing detection module; the MCU module is respectively connected with the zero-crossing detection module and the magnetization and demagnetization control module.
2. The electro-permanent-magnet chuck magnetizing and demagnetizing control device according to claim 1, wherein the magnetizing and demagnetizing control module comprises an IGBT control circuit, a bridge rectifier circuit and a current detection circuit which are connected in sequence; the bridge rectifier circuit is connected with the electric permanent magnet magnetic chuck, and the MCU module is respectively connected with the IGBT control circuit and the current detection circuit.
3. The electro-permanent-magnet chuck magnetizing and demagnetizing control device according to claim 2, wherein the IGBT control circuit comprises an IGBT.
4. The device for controlling magnetization and demagnetization of an electric permanent magnetic chuck according to claim 2, wherein the magnetization and demagnetization control module further comprises a follow current circuit, the follow current circuit is connected in parallel with two ends of the IGBT control circuit, and the follow current circuit is used for follow current when the IGBT control circuit is turned off.
5. The electro-permanent-magnet chuck magnetization and demagnetization control device according to claim 4, wherein the free-wheeling circuit comprises a resistor R0 and a capacitor C0 connected together;
the power supply is divided into two paths, one path is connected with the zero-crossing detection module, and the other path is connected with the bridge rectifier circuit.
6. The electro-permanent-magnet chuck magnetizing and demagnetizing control device according to claim 1, wherein the zero-crossing detection module comprises a voltage stabilizing circuit and a zero-crossing signal generating circuit.
7. The electro-permanent-magnet chuck magnetizing and demagnetizing control device according to claim 6, wherein the voltage stabilizing circuit is a zener diode, the zero-crossing signal generating circuit is a zero-crossing signal generating triode, and the zener diode and the zero-crossing signal generating triode are connected in parallel.
8. The electro-permanent-magnet chuck magnetization and demagnetization control device according to claim 1, wherein the electro-permanent-magnet chuck magnetization and demagnetization control device further comprises a magnetic field intensity sensor and a temperature sensor; the magnetic field intensity sensor is used for detecting the magnetic field intensity of the electric permanent magnetic chuck, and the temperature sensor is used for detecting the local temperature of the electric permanent magnetic chuck; the magnetic field intensity sensor and the temperature sensor are respectively connected with the MCU module.
9. The device according to claim 1, further comprising a suction cup position sensor, wherein the position sensor is connected to the MCU module for transmitting a suction cup position change signal to the MCU module.
10. The electro-permanent-magnet chuck magnetizing and demagnetizing control device according to claim 1, further comprising a command input module and a digital display module; the instruction input module, the digital display module and the MCU module are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120443685.2U CN214705608U (en) | 2021-03-01 | 2021-03-01 | Magnetizing and demagnetizing control device for electric permanent magnetic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120443685.2U CN214705608U (en) | 2021-03-01 | 2021-03-01 | Magnetizing and demagnetizing control device for electric permanent magnetic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214705608U true CN214705608U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120443685.2U Active CN214705608U (en) | 2021-03-01 | 2021-03-01 | Magnetizing and demagnetizing control device for electric permanent magnetic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214705608U (en) |
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2021
- 2021-03-01 CN CN202120443685.2U patent/CN214705608U/en active Active
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