CN106802632B - Split modular drive controller based on controllable silicon - Google Patents
Split modular drive controller based on controllable silicon Download PDFInfo
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- CN106802632B CN106802632B CN201510847830.2A CN201510847830A CN106802632B CN 106802632 B CN106802632 B CN 106802632B CN 201510847830 A CN201510847830 A CN 201510847830A CN 106802632 B CN106802632 B CN 106802632B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/414—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
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Abstract
The invention discloses a split module type driving controller based on silicon controlled rectifier, which comprises a strong current driving module and a weak current integrated control module, wherein the strong current driving module is connected to a motor of a matched accessory of a numerical control machine tool, the weak current integrated control module is connected to an external CNC controller, a weak current board connection switching port is arranged on the strong current driving module, a strong current board communication port is arranged on the weak current integrated control module, and the strong current board communication port is connected with the weak current board connection switching port. The invention separates the strong current driving module from the weak current integrated control module, and the strong current driving module and the weak current integrated control module are connected through the relay, thereby reducing the maintenance cost and the manufacturing cost of the driving control circuit of the numerical control machine.
Description
Technical Field
The invention relates to a motor drive controller in the automation field, in particular to a split modular drive controller for connecting an external CNC (computerized numerical control) controller, a machine tool operation panel and a power device, and particularly relates to a split modular drive controller for connecting an external CNC controller, a machine tool operation panel and a motor of a matched accessory of a numerical control machine.
Background
The numerical control machine tool mainly comprises a mechanical assembly and a control system, wherein the mechanical assembly and the control system are composed of multiple shafts and linkage devices thereof, and the multiple shafts and the linkage devices thereof in the mechanical assembly are driven by an accessory motor. The accessory motor is driven and controlled by the control system to complete the multi-axis linkage action.
The traditional numerical control machine control system adopts mechanical mode control, generally takes an alternating current contactor such as Schneider, Mitsubishi and Zhengtai as main parts, and has the advantages of low operation speed, complex assembly and high labor cost.
With the development of modern numerical Control technology, a Control system of a numerical Control machine tool adopts a special computer or a general-purpose computer storing programs to realize part or all of basic numerical Control functions, so that the Control system becomes a computer numerical Control system (CNC system), which is called CNC system for short. The power distribution mode of the accessory motor is strong current, the control circuit of the control system adopts weak current control, and the strong current driving module and the weak current integrated control module are generally made into a PCB board, but the circuit design cost is high, and if one module among the strong current driving module and the weak current integrated control module breaks down, the maintenance cost is also high.
Therefore, a split module type driving controller is urgently needed to be designed, a strong current driving module and a weak current integrated control module are separated, and the strong current driving module is connected with a matched accessory motor of a numerical control machine; the weak current integrated control module is connected with an external CNC controller and an operation panel, and the strong current driving module and the weak current integrated control module are connected through the strong current board communication port and the weak current board connection switching port, so that the maintenance cost and the manufacturing cost of the numerical control machine driving control circuit are reduced. If the fault occurs, the complete strong current driving module and the weak current integrated control module on the numerical control machine tool can still be recovered.
Disclosure of Invention
The invention aims to provide a split module type driving controller based on silicon controlled rectifier, which firstly separates a strong current driving module from a weak current integrated control module, and the strong current driving module and the weak current integrated control module are connected through a relay, so that the maintenance cost and the manufacturing cost of a driving control circuit of a numerical control machine tool are reduced. Secondly, the strong current driving module adopts a high-power silicon controlled module made of semiconductor materials to amplify a small current control signal of the weak current integrated module to a high-power driving current, and the strong current driving module has the advantages of simple structure, low cost and reliable triggering. And thirdly, a silicon controlled module protection circuit is additionally arranged to realize high-temperature power failure and overcurrent power failure and play a role in protecting the motor. Fourthly, a strong current output port of the strong current driving module adopts a panel type or a vertical type, and a black wire plug is selected, so that the insulating property is good, and the wiring is stable. And fifthly, a weak current signal output port of the weak current integrated control module adopts a panel type or vertical type plug-in unit, so that the contact resistance is small, and the wiring is stable. And sixthly, the strong current driving module is separated from the weak current integrated control module, so that the possibility of burning out of various weak currents caused by wrong connection of strong current and weak current is avoided, and the production risk is greatly reduced. And seventhly, a field effect tube protection circuit and a heat dissipation device for controlling the field effect tube are additionally arranged on the weak current integrated control module so as to protect the field effect tube from overcurrent and high temperature.
In order to achieve the purpose, the split module type driving controller based on the silicon controlled rectifier comprises a strong current driving module and a weak current integrated control module, wherein the strong current driving module is connected to a motor of a matched accessory of a numerical control machine tool, the weak current integrated control module is connected to an external CNC controller and an operation panel, a weak current board connecting and switching port is arranged on the strong current driving module, a strong current board communication port is arranged on the weak current integrated control module, and the strong current board communication port is connected with the weak current board connecting and switching port.
Furthermore, the strong current driving module comprises a single chip microcomputer, a control circuit, a strong current input port, a strong current output port, an amplifier driver, a filter, a driving chip and a weak current board connection switching port, the strong current input port is connected to the current value adjusting module through the filter, the current value adjusting module is connected to the overcurrent detection device, the overcurrent detection device is connected to the amplifier driver, the amplifier driver is connected to the amplifier, the amplifier is connected to the strong current output port, an electric signal of the weak current board connection switching port is connected to the amplifier through the control circuit, and the strong current input port, the strong current output port and the weak current board connection switching port all adopt connectors of quick-plug. Preferably, a protective cover can be arranged outside the connection part of the connector of the quick-insertion type connector. The number of the access ports of the connector of the quick-plug connector on the strong electric drive module is determined according to the requirements of external elements. Furthermore, the amplifier is a silicon controlled module, and the amplifier driver is a silicon controlled driver.
The temperature detection device is a thermosensitive device, the thermosensitive device is connected to the silicon controlled driver through a signal transmission circuit, and the thermosensitive device automatically cuts off the silicon controlled driving voltage; the thermosensitive device is connected to the weak current integrated control module through the weak current connection switching interface and is connected to an external CNC controller through the weak current integrated control module.
Furthermore, the device also comprises an overcurrent detection device and a current value adjusting module, wherein the overcurrent detection device and the current value adjusting module are respectively and electrically connected with the single chip microcomputer. Preferably, the silicon controlled rectifier further comprises a fuse, when the current is too large, the fuse is fused, and the service life of the silicon controlled rectifier module can be guaranteed.
And further, the system also comprises an additional function port, and the additional function port is connected with an additional power-off alarm device, an oil injection device or a working lamp of the numerical control machine tool.
Further, the silicon-controlled rectifier module comprises a radiating fin, wherein the radiating fin is arranged on the outer side of the silicon-controlled rectifier module, and the radiating fin is used for radiating heat generated by the silicon-controlled rectifier module in the operation process, so that the service life and the efficiency of the silicon-controlled rectifier module are ensured.
Furthermore, the weak current integrated control module comprises an input/output signal port, an ON/OFF relay switch, a panel signal communication port, a panel signal output port, a field effect transistor control circuit, a weak current signal alarm output port and a strong current board communication port, wherein the panel signal output port and the panel signal communication port are electrically connected with a control panel of the machine tool, the input/output signal port is connected with an external CNC (computer numerical control) controller, and the input/output signal port, the panel signal communication port, the panel signal output port, the weak current signal alarm output port and the strong current board communication port all adopt connectors of quick-plugging type connectors. Preferably, a protective cover can be arranged outside the connection part of the connector of the quick-insertion type connector. The number of the access ports of the connectors of the quick-plug type connector on the weak current integrated control module is determined according to the requirements of external elements.
Further, a radiating fin is arranged outside the field effect tube control circuit. Preferably, a field effect transistor fuse is also included. If the current exceeds the limited current of the field effect transistor, the fuse can automatically cut off the power, and the field effect transistor and the circuit board are protected from normal use.
Furthermore, the machine tool also comprises a standby relay for standby control of devices with different functions of the machine tool, and the standby relay can be replaced by a silicon controlled rectifier controller. Preferably, a relay fuse is also included.
Further, a first voltage switching port and a second voltage switching port are also included, and the reason for setting the first voltage switching port and the second voltage switching port is as follows: due to different market or machine tool design requirements, the signal voltages are different, and the two ports are arranged for converting different voltages.
The overcurrent detection device is installed on the overcurrent detection plate and comprises at least one current value memory unit, an overcurrent detection chip, a program input port and a current acquisition input port, the strong current drive module further comprises a current acquisition port, the current acquisition input port is connected with the current acquisition port, and each current value memory unit is provided with a memory switch.
The invention has the advantages that: firstly, the strong current driving module and the weak current integrated control module are separated and then connected through the relay, so that the maintenance cost and the manufacturing cost of the driving control circuit of the numerical control machine tool are reduced. Secondly, the strong current driving module adopts a high-power silicon controlled module made of semiconductor materials to amplify a small current control signal of the weak current integrated module to a high-power driving current, and the strong current driving module has the advantages of simple structure, low cost and reliable triggering. And thirdly, a silicon controlled module protection circuit is additionally arranged to realize high-temperature power failure and overcurrent power failure and play a role in protecting the motor. Fourthly, a strong current output port of the strong current driving module adopts a panel type or a vertical type, and a black wire plug is selected, so that the insulating property is good, and the wiring is stable. Fifthly, the weak current signal output port of the weak current integrated control module is a plug-in, so that the contact resistance is small, and the wiring is stable. And sixthly, the strong current driving module is separated from the weak current integrated control module, so that the possibility of burning out of various weak currents caused by wrong connection of strong current and weak current is avoided, and the production risk is greatly reduced. And sixthly, a field effect tube protection circuit and a heat dissipation device for controlling the field effect tube are additionally arranged on the weak current integrated control module so as to protect the field effect tube from overcurrent and high temperature. Seventh, the design has high operation speed, reduced material cost, accelerated construction speed and cost saving.
Drawings
For a more complete understanding of the objects, features and advantages of the present invention, reference is now made to the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block diagram of the module connection of the present invention;
FIG. 2 is a structural diagram of a strong electric driving module;
FIG. 3 is a block diagram of a weak current integrated control module;
FIG. 4 is a top view of an embodiment of an over-current detection device;
fig. 5 is a bottom view of the overcurrent detecting apparatus shown in fig. 4.
In the figure: 1-weak current integrated control module, 2-strong current drive module; 3-an overcurrent detection board;
101-weak current plate connecting switching port, 102-single chip microcomputer, 103-control loop, 104-current value adjusting module, 105-strong current input port, 106-silicon controlled driver, 107-silicon controlled module, 108-temperature detecting device, 109-fuse, 110-strong current output port, 111-additional function port, 112-driving chip, 113-filter; 114-a heat sink;
201-input and output signal port, 202-ON/OFF relay switch, 203-panel signal communication port, 204-panel signal output port, 205-field effect tube control circuit, 206-weak current signal alarm output port, 207-strong current panel communication port, 208-first voltage switching port, 209-second voltage switching port, 210-standby relay, 211-relay fuse;
301-memory switch, 302-overcurrent detection chip, 303-program input port, and 304-current collection input port.
Detailed Description
Referring to fig. 1, the split modular drive controller based on the thyristor of the present embodiment includes a strong current drive module 2 and a weak current integrated control module 1, the strong current drive module 2 is connected to a motor of a matching accessory of the numerical control machine, the weak current integrated control module 1 is connected to an external CNC controller and an operation panel, the strong current drive module 2 is provided with a weak current board connection switching port 101, the weak current integrated control module 1 is provided with a strong current board communication port 207, and the strong current board communication port 207 is connected with the weak current board connection switching port 101.
Referring to fig. 2, in another embodiment, the strong electric driving module 2 includes a single chip 102, a control circuit 103, a strong electric input port 105, a strong electric output port 110, an amplifier driver, a filter 113, a driving chip 112, and a weak electric board connection switching port 101, where the strong electric input port 105 is connected to a current value adjusting module 104 through the filter 113, the current value adjusting module 104 is connected to an overcurrent detection device, the overcurrent detection device is connected to the amplifier driver, the amplifier driver is connected to the amplifier, the amplifier is connected to the strong electric output port 110, an electric signal of the weak electric board connection switching port 101 is connected to the amplifier through the control circuit 103, and the strong electric input port 105, the strong electric output port 110, and the weak electric board connection switching port 101 all adopt. Preferably, a protective cover can be arranged outside the connection part of the connector of the quick-insertion type connector. The number of the access ports of the connector of the quick-plug connector on the strong electric drive module 2 is determined according to the requirement of external elements.
In another embodiment, the device further comprises a temperature detection device 108, wherein the temperature detection device 108 is a thermosensitive device, and the thermosensitive device is connected to the thyristor driver 106 through a signal transmission circuit and automatically cuts off the thyristor driving voltage; the thermosensitive device is connected to the weak current integrated control module 1 through the weak current connection adapter 101, and is connected to an external CNC controller through the weak current integrated control module 1.
The thermosensitive device transmits an over-temperature signal to an input/output signal port 201 of the weak current integrated control module 1 through the weak current connection adapter 101, and transmits the over-temperature signal to an external CNC controller through the input/output signal port 201, the CNC controller sends a new command after receiving the signal, and transmits the new command to the silicon controlled driver 106 on the strong current driving module 2 through the input/output signal port 201 and the weak current connection adapter 101, and the motor device is stopped being driven, so that the effect of protecting the motor device is achieved.
In another embodiment, the system further comprises an over-current detection device and a current value adjusting module 104, and the over-current detection device and the current value adjusting module 104 are respectively electrically connected with the single chip microcomputer 102. Preferably, the power supply further comprises a fuse, and when the current is too large, the fuse is fused, so that the service life of the thyristor module 107 can be ensured.
The single chip microcomputer 102 collects and compares data of the over-current detection device with parameter values set by the current value adjusting module 104, if the over-current detection device detects that the motor device exceeds a current rated value of the current value adjusting module 104, the CNC controller sends instruction data to the silicon controlled driver 106 on the strong current driving module 2 through the weak current integrated control module 1 to stop driving the motor device, and therefore the motor device is protected.
In another embodiment, the system further comprises an additional function port 111, wherein the additional function port 111 is connected with an additional power-off alarm device, an oil injection device or a working lamp of the numerical control machine.
Different other functions can be realized in the configuration process of the machine tool, and the automatic power-off, the oiling machine, the working lamp and the like are connected through the port.
In another embodiment, the silicon controlled rectifier module further comprises a heat sink 114, the heat sink 114 is mounted outside the silicon controlled rectifier module 107, and the heat sink 114 is used for dissipating heat generated by the driving chip 112 during operation, so as to ensure the service life and efficiency of the silicon controlled rectifier module 107.
Referring to fig. 3, the weak current integrated control module 1 includes an input/output signal port 201, an ON/OFF relay switch 202, a panel signal communication port 203, a panel signal output port 204, a field effect transistor control circuit 205, a weak current signal alarm output port 206, and a strong current board communication port 207, where the panel signal output port 204 and the panel signal communication port 203 are electrically connected to a control panel of a machine tool, the input/output signal port 201 is connected to an external CNC controller, and the input/output signal port 201, the panel signal communication port 203, the panel signal output port 204, the weak current signal alarm output port 206, and the strong current board communication port 207 all adopt connectors of quick-plug connectors. Preferably, a protective cover can be arranged outside the connection part of the connector of the quick-insertion type connector. The number of the access ports of the connectors of the quick-plug connector on the weak current integrated control module 1 is determined according to the requirements of external elements.
In another embodiment, a heat sink is provided outside the fet control circuit 205. Preferably, a field effect transistor fuse is also included. If the current exceeds the limited current of the field effect transistor, the fuse can automatically cut off the power, and the field effect transistor and the circuit board are protected from normal use.
In another embodiment, a backup relay 210 is also included, to backup devices controlling different functions of the machine tool, said backup relay 210 may be replaced by a thyristor controller. Preferably, a relay fuse 211 is also included.
In another embodiment, a first voltage switching port 208 and a second voltage switching port 209 are further included, and the reason for setting the first voltage switching port 208 and the second voltage switching port 209 is: due to different market or machine tool design requirements, the signal voltages are different, and the two ports are arranged for converting different voltages.
Referring to fig. 4 to 5, the overcurrent protection device further includes an overcurrent detection board 3, the overcurrent detection device is installed on the overcurrent detection board 3, the overcurrent detection device includes at least one current value memory unit, an overcurrent detection chip 302, a program input port 303, and a current collection input port 304, the strong electric drive module 2 further includes a current collection port, the current collection input port 304 is connected with the current collection port, and each current value memory unit is provided with a memory switch 301. The current value memory unit is used for transmitting the current value of each motor to one current value memory unit of the over-current detection device through the strong electric drive module 2 when each motor of the numerical control machine tool works, wherein the current of each motor is in direct proportion to the power. The memory switch 301 corresponding to the current value memory unit is turned on, so that the normal operating current value information of the motor can be input into the current value memory unit and further stored in the over-current detection chip 302. In the subsequent operation process, the over-current detection chip 302 will determine whether the motor is overloaded according to the memorized value of the current value memory unit. The program input port 303 may interface with a program input module to program the over-current detection device.
Claims (7)
1. The split module type driving controller based on the silicon controlled rectifier comprises a strong current driving module and a weak current integrated control module, wherein the strong current driving module is connected to a motor of a matched accessory of a numerical control machine tool, and the weak current integrated control module is connected to an external CNC controller and an operation panel;
the strong current driving module comprises a single chip microcomputer, a control circuit, a strong current input port, a strong current output port, an amplifier driver, a filter, a driving chip, a weak current board connecting and switching port, an overcurrent detection device and a current value adjusting module, wherein the strong current input port is connected to the current value adjusting module through the filter;
the overcurrent detection device is arranged on the overcurrent detection plate and comprises at least one current value memory unit, an overcurrent detection chip, a program input port and a current acquisition input port, the strong electric drive module further comprises a current acquisition port, the current acquisition input port is connected with the current acquisition port, and each current value memory unit is provided with a memory switch;
the weak current integrated control module comprises an input/output signal port, an ON/OFF relay switch, a panel signal communication port, a panel signal output port, a field effect transistor control circuit, a weak current signal alarm output port and a strong current board communication port, wherein the panel signal output port and the panel signal communication port are electrically connected with a machine tool control panel; the weak current integrated control module also comprises a plurality of silicon controlled controllers.
2. The thyristor-based split modular drive controller of claim 1, wherein: the amplifier is a silicon controlled module, and the amplifier driver is a silicon controlled driver.
3. The thyristor-based split modular drive controller of claim 2, wherein: the temperature detection device is a thermosensitive device, the thermosensitive device is connected to the silicon controlled rectifier driver through a signal transmission circuit, and the silicon controlled rectifier driving voltage is automatically cut off; the thermosensitive device is connected to the weak current integrated control module through the weak current connection switching interface and is connected to an external CNC controller through the weak current integrated control module.
4. The thyristor-based split modular drive controller of claim 1, wherein: additional function ports are also included.
5. The thyristor-based split modular drive controller of claim 2, wherein: the silicon controlled rectifier further comprises a radiating fin, and the radiating fin is installed on the outer side of the silicon controlled rectifier module.
6. The thyristor-based split modular drive controller of claim 1, wherein: a backup relay is also included.
7. The thyristor-based split modular drive controller of claim 1, wherein: also included are a first voltage switching port and a second voltage switching port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510847830.2A CN106802632B (en) | 2015-11-26 | 2015-11-26 | Split modular drive controller based on controllable silicon |
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| CN201510847830.2A CN106802632B (en) | 2015-11-26 | 2015-11-26 | Split modular drive controller based on controllable silicon |
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| CN106802632B true CN106802632B (en) | 2020-09-08 |
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| CN110171371B (en) * | 2019-05-24 | 2021-01-12 | 华夏龙晖（北京）汽车电子科技股份有限公司 | Drive controller, drive control system and car |
| CN110488061A (en) * | 2019-09-23 | 2019-11-22 | 宁波三星医疗电气股份有限公司 | A kind of terminal box and ammeter |
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Effective date of registration: 20230518 Address after: Zone A, 2nd Floor, No. 38 Lane 328, Hengyong Road, Jiading District, Shanghai, 201806 Patentee after: SHANGHAI ZHEHONG ROBOT AUTOMATION CO.,LTD. Address before: 201821 Factory 1, No. 2599 Jia'an Road, Jiading District, Shanghai Patentee before: Han Zhengqiang |
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