CN209640717U - The output driving of numerically-controlled machine tool protects circuit - Google Patents
The output driving of numerically-controlled machine tool protects circuit Download PDFInfo
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- CN209640717U CN209640717U CN201920770164.0U CN201920770164U CN209640717U CN 209640717 U CN209640717 U CN 209640717U CN 201920770164 U CN201920770164 U CN 201920770164U CN 209640717 U CN209640717 U CN 209640717U
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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Abstract
The utility model discloses a kind of output drivings of numerically-controlled machine tool to protect circuit, belongs to fields of numeric control technique；It includes drive module and switching module；The main control module of numerically-controlled machine tool is connect by switching module with extraneous receiving module；In succession, output end is connect with switching module for the input terminal of drive module and extraneous receiving module；Switching module includes electromagnetic relay and switching switch；One end of electromagnetic relay connects to power supply, the output end connection of the other end and drive module；When drive module exports low level, electromagnetic relay work, absorption switching switch is connect with the main control module of numerically-controlled machine tool；When the cut-off of drive module output end, electromagnetic relay does not work, and switching switch is hanging；When there is operation error, when extraneous receiving device being made to generate big reverse current, protection short circuit can disconnect the connection between numerically-controlled machine tool and receiving device in time, the governor circuit without damaging numerically-controlled machine tool.
Description
Technical field
The utility model relates to fields of numeric control technique more particularly to a kind of output driving of numerically-controlled machine tool to protect circuit.
Background technique
With the development of electronic technology and automatic technology, Numeric Control Technology using more and more extensive, be with microprocessor
Basis take large scale integrated circuit as the numerical control device of mark, introduces and promotes and applies in China's batch production, largely, it
Created condition to the development of machinery manufacturing industry, and bring very big benefit.
Existing is usually in receiving device that numerically-controlled machine tool will directly control outside signal input, and when normal operating is not
It will appear any problem, but if because operation error, such as external reception equipment generate biggish reverse current suddenly
It is then easy to burn out the governor circuit of numerically-controlled machine tool, it is too high if the governor circuit cost of replacement numerically-controlled machine tool；Therefore urgently
A kind of protection circuit is needed, numerically-controlled machine tool is prevented to be burned.
Utility model content
Shortcoming present in view of the above technology, the utility model provide a kind of output driving protection of numerically-controlled machine tool
Circuit connects between the governor circuit and extraneous receiving end of numerically-controlled machine tool, when there is operation error, generates extraneous receiving device
When big reverse current, protection short circuit can disconnect the connection between numerically-controlled machine tool and receiving device in time, without damaging numerical control machine
The governor circuit of bed.
To achieve the above object, the utility model provides a kind of output driving protection circuit of numerically-controlled machine tool, including driving
Module and switching module；The main control module of numerically-controlled machine tool is connect by switching module with extraneous receiving module；Drive module it is defeated
Enter end and extraneous receiving module in succession, output end is connect with switching module；
Switching module includes electromagnetic relay and switching switch；One end of electromagnetic relay connects to power supply, the other end with
The output end of drive module connects；The one end for switching switch is connect with the input terminal of extraneous receiving module, the other end and numerical control machine
The main control module connection or hanging of bed；
When drive module exports low level, electromagnetic relay work, the master control mould of absorption switching switch and numerically-controlled machine tool
Block connection；When the cut-off of drive module output end, electromagnetic relay does not work, and switching switch is hanging.
Wherein, drive module circuit includes the first triode and the second triode；Emitter and the height electricity of first triode
Flat out-put supply connection, base stage are connect with extraneous receiving module, and collector is connect with the base stage of the second triode；Second triode
Collector connect with electromagnetic relay；The emitter of second triode is connected to ground.
It wherein, further include diode, diode cathode is connect with electromagnetic relay, the collector of cathode and the second triode
Connection；And diode cathode is connect with electromagnetic relay tie point with the second diode cathode, the second diode cathode and capacitor
Connection.
It wherein, further include light emitting diode, the positive high level output power supply connection of light emitting diode, cathode and diode
It is connect with the tie point of electromagnetic relay.
Wherein, the first triode and the second triode model S8550.
The beneficial effects of the utility model are: the utility model includes drive module and switching module；The master of numerically-controlled machine tool
Control module is connect by switching module with extraneous receiving module；The input terminal of drive module and extraneous receiving module in succession, export
End is connect with switching module；Switching module includes electromagnetic relay and switching switch；One end of electromagnetic relay connects to power supply,
The other end and the output end of drive module connect；The one end for switching switch is connect with the input terminal of extraneous receiving module, the other end
It is connect with the main control module of numerically-controlled machine tool or hanging；When drive module exports low level, electromagnetic relay work, absorption is cut
The main control module for changing switch and numerically-controlled machine tool connects；When the cut-off of drive module output end, electromagnetic relay does not work, and switching is opened
It closes hanging；When there is operation error, when extraneous receiving device being made to generate big reverse current, protection short circuit can disconnect numerical control machine in time
Connection between bed and receiving device, the governor circuit without damaging numerically-controlled machine tool.
Detailed description of the invention
Fig. 1 is each module relationship block diagram of the utility model；
Fig. 2 is the drive module circuit diagram of the utility model；
Fig. 3 is the utility model switch module circuit diagram.
Main element symbol description is as follows:
1, switching module；2, drive module；3, numerically-controlled machine tool；4, receiving device；Q43, the first triode；Q44, the two or three
Pole pipe；D23, diode；D55, the second diode；D22, light emitting diode；C11, capacitor；K, electromagnetic relay.
Specific embodiment
In order to more clearly state the utility model, the utility model is further described with reference to the accompanying drawing.
Please refer to Fig. 1 and Fig. 3, a kind of output driving protection circuit of numerically-controlled machine tool 3, including drive module 2 and switching mould
Block 1；The main control module of numerically-controlled machine tool 3 is connect by switching module 1 with extraneous receiving module；The input terminal of drive module 2 and outer
In succession, output end is connect boundary's receiving module with switching module 1；Switching module 1 includes electromagnetic relay K and switching switch；Electromagnetism
One end of relay K connects to power supply, and the other end is connect with the output end of drive module 2；One end of switching switch connects with the external world
Receive module input terminal connection, the other end connect with the main control module of numerically-controlled machine tool 3 or vacantly；When drive module 2 export it is low
When level, electromagnetic relay K work, absorption switching switch is connect with the main control module of numerically-controlled machine tool 3；When drive module 2 exports
When the cut-off of end, electromagnetic relay K does not work, and switching switch is hanging.
In the present embodiment, which is located on one piece of individual pcb board, extraneous signal wire by interface and
Piece PCB connection, the pcb board are connect by another signal line with the governor circuit of numerically-controlled machine tool 3 again；The input terminal is protected
Circuit connects between the governor circuit and extraneous receiving end of numerically-controlled machine tool 3；When there is operation error, produce extraneous receiving device 4
When raw big reverse current, protection short circuit can disconnect the connection between numerically-controlled machine tool 3 and receiving device 4 in time, without damaging number
Control the governor circuit of lathe 3.
Referring to Fig. 2,2 circuit of drive module includes the first triode and the second triode Q44；The transmitting of first triode
Pole is connect with high level output power supply, and base stage is connect with extraneous receiving module, and collector is connect with the base stage of the second triode；The
The collector of two triodes is connect with electromagnetic relay K；The emitter of second triode Q44 is connected to ground；When the external world receives mould
When block is low level, i.e., extraneous receiving end is normal, and when not generating reversed big voltage, the first transistor base is low level, the
One triode ON；After first triode Q43 conducting, the base stage of the second triode is connect with high level power supply, the second triode
Q44 base stage is high level, and the second triode Q44 is also connected therewith；At this point, one end of electromagnetic relay K is connected to ground, one end with
Power supply connection forming circuit；Electromagnetic relay K work absorption switch is connect with the main control module of numerically-controlled machine tool 3, and numerically-controlled machine tool 3 is main
The data normal transmission of module is controlled to extraneous receiving device 4；When the height electricity reversed due to the generation of emergency case external world receiving module
When pressure, the base stage of the first triode Q43 is high level, the cut-off of the first triode, base stage and the high level electricity of the second triode Q44
It is also switched off between source；The cut-off of second triode；At this point, one end of electromagnetic relay K connects to power supply, the other end is disconnected, electromagnetism
Relay K does not work, and switching switch and the main control module of numerically-controlled machine tool 3 disconnect, and is in vacant state, prevents directional current from damaging
3 main control module of numerically-controlled machine tool.
It in the present embodiment, further include diode D23, diode D23 anode is connect with electromagnetic relay K, cathode and
The collector of two triodes connects；And diode D23 anode connects with electromagnetic relay K tie point and the second diode D55 anode
It connects, the second diode D55 cathode is connect with capacitor C11；Capacitor C11 receives the induction generated in electromagnetic relay K make and break process
Electric current.
It in the present embodiment, further include light emitting diode, the positive high level output power supply of light emitting diode D22 connects,
Cathode is connect with diode D23 with the tie point of electromagnetic relay K；When the second triode Q44 conducting, i.e., numerically-controlled machine tool 3 is being just
Often when transmission signal to extraneous receiving module, the cathode and ground of light emitting diode D22 is connected, light emitting diode D22 work；When
When two triode Q44 end, i.e., when extraneous receiving module generates big backward voltage, the cut-off of light emitting diode D22 cathode, luminous two
Pole pipe D22 cut-off；Luminous earphone plays indicative function；Wherein, the first triode Q43 and the second triode Q44 model
S8550。
The advantage of the utility model is:
1, when there is operation error, electromagnetic relay does not work, and switching switch is hanging；Generate extraneous receiving device big anti-
When to electric current, protection short circuit can disconnect the connection between numerically-controlled machine tool and receiving device in time, without damaging numerically-controlled machine tool
Governor circuit；
2, diode cathode and electromagnetic relay connect, and cathode is connect with the collector of the second triode；And diode is just
Pole is connect with electromagnetic relay tie point with the second diode cathode, the second diode cathode and capacitance connection；Capacitor receives electricity
The induced current generated in magnetic relay make and break process.
Disclosed above is only several specific embodiments of the utility model, but the utility model is not limited to this,
The changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.
Claims (5)
1. a kind of output driving of numerically-controlled machine tool protects circuit, which is characterized in that including drive module and switching module；Numerical control machine
The main control module of bed is connect by switching module with extraneous receiving module；The input terminal of drive module connects with extraneous receiving module
Even, output end is connect with switching module；
Switching module includes electromagnetic relay and switching switch；One end of electromagnetic relay connects to power supply, the other end and driving
The output end of module connects；The one end for switching switch is connect with the input terminal of external world's receiving module, the other end and numerically-controlled machine tool
Main control module connection is hanging；
When drive module exports low level, electromagnetic relay work, absorption switching switch and the main control module of numerically-controlled machine tool connect
It connects；When the cut-off of drive module output end, electromagnetic relay does not work, and switching switch is hanging.
2. the output driving of numerically-controlled machine tool according to claim 1 protects circuit, which is characterized in that drive module circuit packet
Include the first triode and the second triode；The emitter of first triode is connect with high level output power supply, and base stage connects with the external world
Module connection is received, collector is connect with the base stage of the second triode；The collector of second triode is connect with electromagnetic relay；The
The emitter of two triodes is connected to ground.
3. the output driving of numerically-controlled machine tool according to claim 2 protects circuit, which is characterized in that it further include diode,
Diode cathode is connect with electromagnetic relay, and cathode is connect with the collector of the second triode；And diode cathode and electromagnetism after
Electric appliance tie point is connect with the second diode cathode, the second diode cathode and capacitance connection.
4. the output driving of numerically-controlled machine tool according to claim 3 protects circuit, which is characterized in that further include light-emitting diodes
Pipe, the positive high level output power supply connection of light emitting diode, cathode are connect with the tie point of diode and electromagnetic relay.
5. the output driving of numerically-controlled machine tool according to claim 2 protects circuit, which is characterized in that the first triode and the
Two triode model S8550.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770164.0U CN209640717U (en) | 2019-05-25 | 2019-05-25 | The output driving of numerically-controlled machine tool protects circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770164.0U CN209640717U (en) | 2019-05-25 | 2019-05-25 | The output driving of numerically-controlled machine tool protects circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209640717U true CN209640717U (en) | 2019-11-15 |
Family
ID=68498782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920770164.0U Expired - Fee Related CN209640717U (en) | 2019-05-25 | 2019-05-25 | The output driving of numerically-controlled machine tool protects circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209640717U (en) |
-
2019
- 2019-05-25 CN CN201920770164.0U patent/CN209640717U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 |