CN206657206U - A kind of laser power model- following control device based on PMAC cards - Google Patents
A kind of laser power model- following control device based on PMAC cards Download PDFInfo
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- CN206657206U CN206657206U CN201720113346.1U CN201720113346U CN206657206U CN 206657206 U CN206657206 U CN 206657206U CN 201720113346 U CN201720113346 U CN 201720113346U CN 206657206 U CN206657206 U CN 206657206U
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Abstract
The utility model discloses a kind of laser power model- following control device based on PMAC cards, including computer, laser and interface module, in addition to the PMAC motion control cards being connected respectively with computer and interface module, PMAC motion control cards to be also connected with laser；PMAC motion control cards include the DSP Processor circuit of connection computer, and the gate array hardware controls passage of connection DSP Processor circuit；Interface module includes axle control port and the flag signal port of connection gate array hardware controls passage；Axle control port connects servo-driver, flag signal port connection optoelectronic switch.
Description
Technical field
The utility model belongs to laser control technique field and follows control more particularly to a kind of laser power based on PMAC cards
Device processed.
Background technology
Laser is at every moment changing our life every aspect, optical fiber and CO2 laser as a kind of instrument
Cutting applies more and more extensive, the processing for metal and nonmetallic materials in modern industry so that increasing producer
Put into the processing technology of the substantial amounts of various different materials of manpower and materials research.The Power Control of laser (could also say that laser
Algorithm for power modulation), the process velocity of motion platform, and gas circuit air pressure size etc. these factors directly affects cutting technique.
Laser power has certain influence on processing technology with platform speed, and particularly two dimensional surface workbench does complex curve
During processing, during two axle moving interpolations, circular arc or turning speed can reduce, but when now laser power does not change, machining locus
It can have a huge impact, the power accumulation because of speed reduction of Machining Arc or turning meeting, make cutting so as to produce heat affecting
Face calcination surface is not smooth enough.Now need to seek a kind of control system that can control laser power, and laser power can
Changed according to the velocity variations of motion platform, so as to solve to be produced in laser cutting process because of the change of speed
Heat affecting.
The content of the invention：
The purpose of this utility model is to provide a kind of laser power model- following control device based on PMAC cards, can, with gram
Take problem present in background technology.
To achieve these goals, the technical solution of the utility model is：
A kind of laser power model- following control device based on PMAC cards, including computer, laser and interface module, are also wrapped
The PMAC motion control cards being connected respectively with computer and interface module are included, PMAC motion control cards are also connected with laser；
PMAC motion control cards include the DSP Processor circuit of connection computer, and the gate array of connection DSP Processor circuit
Row hardware controls passage；Interface module includes axle control port and the flag signal end of connection gate array hardware controls passage
Mouthful；Axle control port connects servo-driver, flag signal port connection optoelectronic switch.
It is preferred that servo-driver includes X-axis servo-driver, Y-axis servo-driver and Z axis servo-driver.
It is preferred that axle control port connection servo-driver control terminal and servo-driver encoder.
It is preferred that optoelectronic switch includes X-axis optoelectronic switch, Y-axis optoelectronic switch and Z axis optoelectronic switch.
It is preferred that X-axis optoelectronic switch bears spacing light including X-axis origin optoelectronic switch, the positive limiting photoelectric switch of X-axis and X-axis
Electric switch, Y-axis optoelectronic switch include Y-axis origin optoelectronic switch, the positive limiting photoelectric switch of Y-axis and Y-axis and bear limiting photoelectric switch, Z
Axle optoelectronic switch includes Z axis origin optoelectronic switch, the positive limiting photoelectric switch of Z axis and Z axis and bears limiting photoelectric switch.
It is preferred that PMAC motion control cards also include the pwm signal circuit of connection DSP Processor circuit, pwm signal circuit
Pass through laser power control port connecting laser.
It is preferred that interface module also includes the input/output port of connection gate array hardware controls passage, input/output terminal
Mouth connects several functional circuits.
It is preferred that functional circuit includes working station indicator and relay.
It is preferred that relay includes fixture control relay.
It is preferred that relay includes air blowing control relay.
The beneficial effects of the utility model are：Machining locus and laser controlling are all completed by PMAC motion control cards,
PMAC motion controls are stuck in when performing movement locus while control laser power, wherein also the flag bit including kinematic axis is believed
Number and I/O signal.The utility model has stronger axle control ability and rail due to adding PMAC motion control cards
Mark operational capability, high accuracy, the closed-loop control of high response speed can be achieved.Position mould is controlled in open-loop control system pulse direction
In formula control mode, no servo-driver encoder or outside grating feedback control system can not monitor the position of motor shaft in real time
Confidence ceases, and the utility model is under Analog control velocity mode, and PMAC motion control cards are according to servo-driver encoder
Or the feedback signal of outside grating, position and the velocity information of axle motion can be monitored in real time, and then can be reached according to position
Servo-driver is controlled with velocity information, so as to the purpose of accurate controlled motor kinematic axis.And the same root of laser power control
The Position And Velocity information of motor shaft is obtained according to the feedback of servo driver of motor encoder, according to the change of position and speed
Laser power model- following control can be achieved.Because PMAC motion control cards are also equipped with the input control function of motor shaft marking signal,
The utility model also can access photosignal outside motor shaft as the positive and negative limit signal and origin signal of motor shaft to ensure
The safe operation of motor shaft.PMAC motion control cards also support multichannel I/O port control function simultaneously, and the utility model can realize base
This 16 inputs and the control of 16 output signals, are controlled by I/O port, the direct operation of outside mechanical part can be achieved, to complete to control
External auxiliary function in system processed.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the utility model embodiment.
In figure：1-PMAC motion control cards, 1.1-DSP processor circuits, 1.2- gate array hardware controls passages, 1.3- lead to
Communication interface, 1.4-PWM signal circuits, 1.5- laser power controls port, 2- interface modules, 2.1- axle control ports, 2.2- marks
Will position signal port, 2.3- input/output ports, 3- servo-drivers, 3.1-X axle servo-drivers, 3.2-Y axle servo-drives
Device, 3.3-Z axle servo-drivers, 4- computers, 5- lasers, 6- optoelectronic switches, 6.1-X axle optoelectronic switches, 6.2-Y axle photoelectricity
Switch, 6.3-Z axle optoelectronic switches, 7- functional circuits, 7.1- air blowing control relays, 7.2- working station indicators, 7.3- folders
Has control relay.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
A kind of laser power model- following control device based on PMAC cards, including computer 4, laser 5 and interface module 2,
Also include the PMAC motion control cards 1 being connected respectively with computer 4 and interface module 2, PMAC motion control cards 1 are also connected with laser
Device 5；
PMAC motion control cards 1 include the DSP Processor circuit 1.1 of connection computer 4, and connection DSP Processor circuit
1.1 gate array hardware controls passage 1.2；Interface module 2 includes the axle control port of connection gate array hardware controls passage 1.2
2.1 and flag signal port 2.2；Axle control port 2.1 connects servo-driver 3, and flag signal port 2.2 connects photoelectricity
Switch 6.
Servo-driver 3 includes X-axis servo-driver 3.1, Y-axis servo-driver 3.2 and Z axis servo-driver 3.3.
Axle control port 2.1 connects the control terminal of servo-driver 3 and the encoder of servo-driver 3.
Optoelectronic switch 6 includes X-axis optoelectronic switch 6.1, Y-axis optoelectronic switch 6.2 and Z axis optoelectronic switch 6.3.
X-axis optoelectronic switch 6.1 bears spacing photoelectricity including X-axis origin optoelectronic switch 6, the positive limiting photoelectric switch 6 of X-axis and X-axis
Switch 6, Y-axis optoelectronic switch 6.2 is born spacing photoelectricity and opened including Y-axis origin optoelectronic switch 6, the positive limiting photoelectric switch 6 of Y-axis and Y-axis
6 are closed, Z axis optoelectronic switch 6.3 includes Z axis origin optoelectronic switch 6, the positive limiting photoelectric switch 6 of Z axis and Z axis and bears limiting photoelectric switch
6。
PMAC motion control cards 1 also include the pwm signal circuit 1.4 of connection DSP Processor circuit 1.1, pwm signal circuit
1.4 pass through the connecting laser 5 of laser power control port 1.5.
Interface module 2 also includes the input/output port 2.3 of connection gate array hardware controls passage 1.2, input/output terminal
The several functional circuits 7 of the connection of mouth 2.3, functional circuit 7 include working station indicator 7.2, fixture control relay 7.3 and blown
Control relay 7.1.
PMAC motion control cards 1 are multi-axis motion control card in a kind of Laser Processing power control system of the present embodiment,
The control of three motor shafts (X-axis, Y-axis and Z axis) is used in this implementation；Done between PMAC motion control cards 1 and interface module 2
Phototube Coupling；Interface module 2 is responsible for the hardware circuit connection of each mechanical structure, including each motor shaft, optoelectronic switch 6 and work(
Can circuit 7.Computer 4 in the present embodiment is main frame, and computer 4 is industrial computer 4, and communication interface 1.3 provides Ethernet
Interface, and the installation of PMAC card bottom software carrier is provided；PMAC motion control cards 1 provide pwm signal circuit 1.4 and laser work(
Rate table control port is used to connecting and controlling laser 5.All procedure operation of system control PMAC fortune by host computer 4
Control card 1 is moved to perform, host computer 4 does not control individually each servo-driver 3, optoelectronic switch 6 and laser 5 etc. hard
Part
Connected in the present embodiment, between PMAC motion control cards 1 and host computer 4 by Ethernet and carry out data in real time
Exchange, PMAC motion control cards 1 control the operation of the motor shaft of servo-driver 3 completion machining locus, while PMAC motion controls
Card 1 completes the operation of I/O port, controls outside mechanical mechanism to perform auxiliary movement.PMAC motion control cards 1 are controlled by interface module 2
Servo-driver 3 processed, control model use Analog control, and driver encoder feedback to PMAC motion control cards 1, close by formation
Ring controls, and can so detect position and the velocity variations of axle in real time, realizes more accurate control；Meanwhile PMAC motion control cards 1
The speed of axle is detected according to the feedback information of driver encoder in real time to complete the real-time control of laser power.The present embodiment makes
With the control structure of 3 axis servomotor servo-drivers 3, the control of XYZ three-dimensional system of coordinates can be formed, completes processing rail in coordinate system
The operation of mark.PMAC motion control cards 1 are according to the feedback of the encoder of motor shaft servo-driver 3, by calculating machining locus
Velocity variations change laser controlling power in real time, realize laser power model- following control.
In the present embodiment, the pwm signal circuit 1.4 of PMAC motion control cards 1 and the control of laser power control port 1.5 swash
The laser power of light device 5, according to the running orbit and the speed of service of the motor shaft of servo-driver 3, change the power that laser exports
Value, so as to improve, kinematic axis makes moving interpolation or corner changes laser power, improvement laser cutting effect in real time.
In the present embodiment, PMAC motion control cards 1 provide pwm power control module, and hardware configuration output is Transistor-Transistor Logic level
(5V), frequency and dutycycle are adjustable.Frequency-adjustable scope：50Hz~50kHz, it is applicable to a variety of lasers 5.
Laser power control system can be realized by control system in the present embodiment, and realize laser power in process
Control in real time, laser power, in conventional mode of operation, the control system based on PMAC motion control cards 1 are changed according to movement locus
System can only control the track of motion platform to move, and the power of laser 5 is typically directly set inside laser 5, laser 5
Laser power can not change in process with the change of process velocity.The utility model provides a kind of Laser Processing
Power control system, laser cutting power can with the velocity variations of motion platform real-time change, in motion platform high-speed motion
Cutting technique effect is can obviously improve when the acceleration and deceleration of turning.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.Do not make in this specification in detail
What is carefully described partly belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a kind of laser power model- following control device based on PMAC cards, including computer (4), laser (5) and interface module
(2), it is characterised in that：Also include the PMAC motion control cards being connected respectively with the computer (4) and the interface module (2)
(1), the PMAC motion control cards (1) are also connected with the laser (5)；
The PMAC motion control cards (1) include connecting the DSP Processor circuit (1.1) of the computer (4), and described in connection
The gate array hardware controls passage (1.2) of DSP Processor circuit (1.1)；The interface module (2) includes connecting the gate array
The axle control port (2.1) of hardware controls passage (1.2) and flag signal port (2.2)；The axle control port (2.1) is even
Connect servo-driver (3), flag signal port (2.2) the connection optoelectronic switch (6).
A kind of 2. laser power model- following control device based on PMAC cards according to claim 1, it is characterised in that：It is described
Servo-driver (3) includes X-axis servo-driver (3.1), Y-axis servo-driver (3.2) and Z axis servo-driver (3.3).
A kind of 3. laser power model- following control device based on PMAC cards according to claim 1, it is characterised in that：It is described
Axle control port (2.1) connects servo-driver (3) control terminal and servo-driver (3) encoder.
A kind of 4. laser power model- following control device based on PMAC cards according to claim 1, it is characterised in that：It is described
Optoelectronic switch (6) includes X-axis optoelectronic switch (6.1), Y-axis optoelectronic switch (6.2) and Z axis optoelectronic switch (6.3).
A kind of 5. laser power model- following control device based on PMAC cards according to claim 4, it is characterised in that：It is described
X-axis optoelectronic switch (6.1) is born spacing photoelectricity including X-axis origin optoelectronic switch (6), the positive limiting photoelectric switch of X-axis (6) and X-axis and opened
Close (6), the Y-axis optoelectronic switch (6.2) is born including Y-axis origin optoelectronic switch (6), the positive limiting photoelectric switch of Y-axis (6) and Y-axis
Limiting photoelectric switch (6), the Z axis optoelectronic switch (6.3) include Z axis origin optoelectronic switch (6), the positive limiting photoelectric switch of Z axis
(6) and Z axis bears limiting photoelectric switch (6).
A kind of 6. laser power model- following control device based on PMAC cards according to claim 1, it is characterised in that：It is described
PMAC motion control cards (1) also include the pwm signal circuit (1.4) for connecting the DSP Processor circuit (1.1), the PWM letters
Number circuit (1.4) passes through laser power control port (1.5) and connects the laser (5).
A kind of 7. laser power model- following control device based on PMAC cards according to claim 1, it is characterised in that：It is described
Interface module (2) also includes the input/output port (2.3) for connecting the gate array hardware controls passage (1.2), the input
Output port (2.3) connects several functional circuits (7).
A kind of 8. laser power model- following control device based on PMAC cards according to claim 7, it is characterised in that：It is described
Functional circuit (7) includes working station indicator (7.2) and relay.
A kind of 9. laser power model- following control device based on PMAC cards according to claim 8, it is characterised in that：It is described
Relay includes fixture control relay (7.3) and air blowing control relay (7.1).
A kind of 10. laser power model- following control device based on PMAC cards according to claim 1, it is characterised in that：Institute
State the communication interface that PMAC motion control cards (1) also include connecting the DSP Processor circuit (1.1) and the computer (4)
(1.3), the communication interface (1.3) includes Ethernet interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720113346.1U CN206657206U (en) | 2017-02-07 | 2017-02-07 | A kind of laser power model- following control device based on PMAC cards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720113346.1U CN206657206U (en) | 2017-02-07 | 2017-02-07 | A kind of laser power model- following control device based on PMAC cards |
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| Publication Number | Publication Date |
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| CN206657206U true CN206657206U (en) | 2017-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720113346.1U Active CN206657206U (en) | 2017-02-07 | 2017-02-07 | A kind of laser power model- following control device based on PMAC cards |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722592A (en) * | 2020-07-07 | 2020-09-29 | 天津越华机械制造有限公司 | Motion control card device for flame cutting numerical control system |
-
2017
- 2017-02-07 CN CN201720113346.1U patent/CN206657206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722592A (en) * | 2020-07-07 | 2020-09-29 | 天津越华机械制造有限公司 | Motion control card device for flame cutting numerical control system |
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