CN104281100A - Integrated numerical control system for numerical control equipment - Google Patents
Integrated numerical control system for numerical control equipment Download PDFInfo
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- CN104281100A CN104281100A CN201310272948.8A CN201310272948A CN104281100A CN 104281100 A CN104281100 A CN 104281100A CN 201310272948 A CN201310272948 A CN 201310272948A CN 104281100 A CN104281100 A CN 104281100A
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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
Abstract
The invention provides an integrated numerical control system which comprises two major parts, namely a man-machine interface and a control unit. The control unit comprises a control module, a driving module and a power supply module; wherein the modules of the control unit are mounted on a same base board in an integrated manner, and signal connection among the modules is realized through wirings of a base circuit board. The integrated numerical control system for the numerical control equipment has functions of: simplifying the integrating difficulty of the numerical control system, The integrated numerical control system for the numerical control equipment has functions of: saving manual wiring, shortening time required for positioning fault points, and realizing more concise and attractive arrangement in the control cabinet of the numerical control equipment.
Description
Technical field
The present invention relates to the digital control system for numerical control device, be specifically related to the modular numerically controlled system for numerical control device.
Background technology
Traditional digital control system for numerical control device comprises control module, driver element and power supply unit.Control module is the core of digital control system, is responsible for man-machine interaction and sends steering order.The position topworks motor of driver element domination number Ore-controlling Role, generally be divided into step actuator or servo-driver according to motor type, the steering order that its reception control unit sends, drive motor action, delivers to assigned address by the processing actuating unit of numerical control device.The voltage converted to by the interchange commercial power of 220V or 380V of input in digital control system needed for each unit is responsible for by power supply unit.The processing actuating unit of numerical control device completes the processing to workpiece to be processed according to the instruction that digital control system sends, and the processing actuating unit of numerical control device can be electro spindle, laser instrument etc.In addition, digital control system can also comprise protected location, and it provides safety guarantee to digital control system and numerical control device, such as, be air switch, lightning-protection module etc.The unit of digital control system is separate unit, is generally provided by different production firms, and each unit of digital control system is coupled together by a large amount of cables each other.These can cause following problem:
One, numerical control device manufacturer is when carrying out digital control system and being integrated, each unit of the digital control system using different vendor to produce, if coordinate bad between unit, not only can not play the optimum performance of digital control system, also can cause digital control system job insecurity;
Two, numerical control device manufacturer is when carrying out digital control system and being integrated, need to use the cable of a large amount of all size for the connection each other of each unit of digital control system, this both added system cost, turn increased the workload of operating personnel, had higher requirements to the technical ability of operating personnel simultaneously;
Three, when digital control system breaks down, in the middle of the connection cable of complexity, fault point needs the time spending maintainer a large amount of, and need maintainer to have rich experience, and, when maintain and replace is carried out to digital control system each unit, need dismounting connection connection cable thereon, this not only easily damages cable and also easily causes setup error;
The existence of four, a large amount of connection cables makes to seem complicated in the switch board of numerical control device, and takies more space.
Summary of the invention
In view of the above problems, the object of this invention is to provide a kind of integrated numerical control system, with simplify digital control system integrated difficulty, save manual routing, shorten time needed for fault point, make in the switch board of numerical control device more succinct and attractive in appearance.
According to an aspect of the present invention, a kind of digital control system for numerical control device is provided, comprises the man-machine interface and control module with human-computer interaction function, wherein, control module comprises: control module, and it produces according to the job sequence of workpiece to be processed and sends steering order; Driver module, it drives the processing actuating unit of numerical control device, to process workpiece to be processed according to the steering order from control module; Power module, the commercial power of input is converted to voltage required in digital control system by it, and it is characterized in that, each module integration of control module is arranged on same base plate, and is connected by the signal that the wiring of backplane circuit plate realizes between each module.
Utilize the digital control system of above-mentioned configuration, in digital control system between each module of control module and described base plate without any aerial lug, thus simplify the integrated difficulty of digital control system, save manual routing, shorten the time needed for fault point, make in the switch board of numerical control device more succinct and attractive in appearance.
Preferably, each module of control module is carried out signal by connector and described base plate and is connected, without any aerial lug between each module and described base plate.
Utilize the digital control system of this configuration, each module of control module can be arranged on described base plate easily, does not need welding can realize each module of control module and is connected with the signal between described base plate.
Preferably, each module of control module adopts horizontal mounting means to be removably installed on described base plate by connector, and is fixed by erection column.
Utilize the digital control system of this configuration, each module of control module can be securely fixed on described base plate, and facilitates the maintenance, replacing etc. of each module.
Preferably, each module of control module is provided with handle, and each handle is arranged on each module board by stitch welding manner.Such as, each handle can be arranged on the position near connector on each module board.
Utilize the digital control system of this configuration, conveniently dismantle each module from described base plate, and each module and connector thereof can not be damaged, facilitate the maintenance of each module, replacing etc.
Preferably, described base plate being furnished with numerical control device interface, being connected for carrying out signal with numerical control device, numerical control device interface carries out signal by the wiring of backplane circuit plate with each module of control module and is connected.
Utilize the digital control system of this configuration, do not need when keeping in repair each module of digital control system and change to destroy any original line in numerical control device switch board.
Preferably, radome is used to carry out protecting control module, to reduce the impact of other module on it.
Utilize the digital control system of above-mentioned configuration, the such as space magnetic field interference etc. of other module to control module can be reduced.
Preferably, backplane circuit plate wiring in by isolating device by low-voltage control signal lines and high-tension high-power signal line completely isolated, to avoid signal disturbing.
Utilize the digital control system of above-mentioned configuration, the mutual interference of signal in transmission line can be avoided.
Preferentially, according to the difference of numerical control device, the I/O expansion module described base plate is also furnished with the rotational speed control module for controlling the speed of mainshaft of processing actuating unit in numerical control device, expanding for the input and output of digital control system, for controlling the band-type brake control module of the brake hard of processing actuating unit in numerical control device or carrying out the image recognition control module (such as, CCD control module) of image recognition for controlling numerical control device.
Utilize the digital control system of this configuration, the demand of different numerical control device can be met.
Preferably, the wiring of backplane circuit plate comprises NBus bus, and NBus bus comprises multichannel direct election incoming line and a road universal serial bus.
Preferably, each module of control module all has state-detection element or state indicator elment, state detected by each state-detection element or the state indicated by each state indicator elment are (such as, malfunction) be classified as different response rank, to utilize other interrupt request of different response level respectively by different direct election incoming lines notice control module, control module inquires about the state of each module by universal serial bus according to the response rank of received interrupt request, and perform response (such as, powered-down).
Preferably, be different response ranks by the state detected by the condition checkout gear of numerical control device or the state classification indicated by state indicating device, to utilize other interrupt request of different response level respectively by different direct election incoming lines notice control module, control module inquires about the state of numerical control device by universal serial bus according to the response rank of received interrupt request, and perform response (such as, to the sending controling instruction such as switchgear of numerical control device).
Utilize the digital control system of above-mentioned configuration, control module need not the state of each module of poll and numerical control device, alleviates the processing load of control module.In addition, the state of each module and numerical control device is divided into different response rank, effectively can controls the opportunity of event notice control module, ensure that the real-time of event response.Meanwhile, the state indicator elment of each module makes it possible to online state of observing each module easily.
Preferably, the NBus bus in the wiring of backplane circuit plate has external expansion interface, for the unit extensions of digital control system.
The digital control system of above-mentioned configuration has the extensibility of enhancing, and when digital control system needs expanding element, new unit is directly connected with the external expansion interface of NBus bus.
Preferably, man-machine interface and control module separated from one another, described base plate is furnished with user-machine interface, and man-machine interface is carried out signal with control module each other by user-machine interface and is connected, and user-machine interface carries out signal by the wiring of backplane circuit plate with each module of control module and is connected.
The digital control system of above-mentioned configuration makes the man-machine interaction task of low requirement of real-time be separated with the control task that high real-time requires, improves real-time and the reliability of control module, and facilitates numerical control device manufacturer to customize the man-machine interface of different-style.
Preferably, man-machine interface is portable equipment, comprising: emergency stop switch, in case of emergency cutting off the power supply of numerical control device; Touch-screen, for accepting the state of user's input and display Ore-controlling Role and numerical control device.
Preferably, man-machine interface is that USB main equipment or USB are from equipment, itself and USB are from equipment (such as, USB flash disk) connect to read job sequence from USB from equipment, connect by USB main equipment, digital control system and numerical control device to be debugged and condition diagnosing with USB main equipment (such as, personal computer).
Accompanying drawing explanation
Describe example embodiment of the present invention in detail in conjunction with the following drawings, in accompanying drawing:
Fig. 1 shows the structured flowchart of the digital control system according to example embodiment of the present invention;
Fig. 2 shows the signal diagram of the digital control system according to example embodiment of the present invention;
Fig. 3 shows the example according to the direct election incoming line in the NBus bus of example embodiment of the present invention;
Fig. 4 shows the structural representation of control module in the digital control system according to example embodiment of the present invention;
Fig. 5 shows the structural representation of the handle according to example embodiment of the present invention.
Embodiment
Fig. 1 shows the structured flowchart of the digital control system according to example embodiment of the present invention.Fig. 2 shows the signal diagram of the digital control system according to example embodiment of the present invention.
As shown in Figure 1, digital control system comprises man-machine interface and control module, and man-machine interface and control module are two large divisions separated from one another.Signal can be carried out by data buss such as ModBus bus, VGA bus or LVDS buses between man-machine interface with control module to be connected.
Man-machine interface has human-computer interaction function, comprises the input and output of information.As shown in Figure 1, man-machine interface can comprise emergency stop switch and touch-screen, and emergency stop switch is used in case of emergency cutting off the power supply of numerical control device, and touch-screen is for the state of the input and display Ore-controlling Role and numerical control device that accept user.As replacement, man-machine interface can comprise button and display screen to replace touch-screen, and button is for accepting the input of user, and display screen is used for the state of display Ore-controlling Role and numerical control device.Such as, man-machine interface can be portable equipment, and it can be connected with control module by spring cable, can be fixed by the deck be arranged on the switch board of numerical control device, also can be removed, while close-ups workpiece to be processed, perform manipulation with handled easily personnel.In addition, man-machine interface can be that USB main equipment or USB are from equipment, its can with USB from equipment (such as, USB flash disk) connect to read job sequence from USB from equipment and to be imported control module, also can connect by the software in USB main equipment, digital control system and numerical control device to be debugged and condition diagnosing with USB main equipment (such as, personal computer).
Control module comprises control module, driver module and power module three zones module further.Control module produces according to the job sequence of workpiece to be processed and sends steering order.Driver module drives the processing actuating unit of numerical control device, to process workpiece to be processed according to the steering order from control module.The commercial power of input is converted to voltage required in digital control system by power module.
Each module integration of control module is arranged on same base plate, and is connected by the signal that the wiring of backplane circuit plate realizes between each module.In this example embodiment, the wiring of backplane circuit plate comprises NBus bus (as shown in Figure 2), and NBus bus comprises multichannel direct election incoming line and a road universal serial bus (such as, RS485, CAN etc.).The effect of direct election incoming line has interrupt event to produce by interrupt request notice control module, requires control module to inquire about and respond.Multichannel direct election incoming line corresponds respectively to other interrupt request of different response level.Such as, each module of control module can have state-detection/indicator elment.In control module each module state-detection/indicator elment the state that detects/indicate and numerical control device state-detection/indicating device the state that detects/indicate be classified as different response rank, to utilize other interrupt request of different response level by different direct election incoming lines notice control module, after control module receives interrupt request, response rank according to interrupt request passes through universal serial bus query State details in reasonable time, and performs response.Such as, in control module, the state-detection/indicator elment of control module can detect/indicate its line (such as, NBus bus), input, output, environment temperature, the state such as humidity, state-detection/the indicator elment of driver module can detect/indicate the state such as voltage, electric current of its line, input and output, and the state-detection/indicator elment of power module can detect/indicate the state such as voltage, electric current of its line, input and output.Such as, in control module, the state-detection/indicator elment of each module can carry LED etc. for sensor, plate.The status information being sent to control module by NBus bus can be displayed in man-machine interface.As shown in Figure 2, control module can according to the sending controling instruction such as switchgear of inquired status details to numerical control device.
Control module is the core of digital control system, the loading of primary responsibility job sequence, G code explanation and PLC technology etc.Such as, control module can be 3 shaft step motor controllers.Correspondingly, driver module can be X-axis driver module, Y-axis driver module and Z axis driver module, as shown in Figure 2.The interlock of X-axis, Y-axis composition plane, Z axis is Stellungsservosteuerung, makes Z axis and workpiece to be processed surface keep fixed range by position transducer.In addition, according to the difference of numerical control device, control module also may be implemented as more multiaxis driver module controller, and driver module also may be implemented as more multiaxis driver module.
As shown in Figure 2, control module (such as, 3 shaft step motor controllers) can to driver module (such as, X-axis driver module, Y-axis driver module and Z axis driver module) send control wave and direction signal, and by NBus bus inquire about each driver module state and to each driver module sending controling instruction.
Power module accepts the interchange commercial power input of 220V or 380V, such as, as shown in Figure 2,1 road 24V direct supply and 3 road 36V direct supplys are provided, wherein, 1 road 24V direct supply is used for powering for control module, and 3 road 36V direct supplys are used for for driver module (such as, X-axis driver module, Y-axis driver module and Z axis driver module) power supply.Control module by the state of the NBus bus inquiry power module in the wiring of backplane circuit plate, and can control the function such as unlatching, closedown of power module.In addition, power module can also be the input (such as, the state-detection/indicating device etc. of numerical control device) of control module and export (such as, the switchgear etc. of numerical control device) power supply.
In addition, as shown in Figure 2, NBus bus can have external expansion interface, and for the unit extensions of digital control system, when digital control system needs expanding element, new unit is directly connected with the external expansion interface of NBus bus.
Fig. 3 shows the example according to the direct election incoming line in the NBus bus of example embodiment of the present invention.As shown in Figure 3, elect incoming line directly to be realized by OC gate circuit.
Such as, the direct election incoming line in NBus bus can be 3 tunnels, that is, DIS [2:0].Such as, DIS [0] stops event group for anxious, and event requires numerical control device immediately with peak acceleration stop motion after producing, and need to rebuild numerical control device coordinate system, such event is such as by the generation such as limit switch, warning device.DIS [1] is for suspending event group, and event requires numerical control device pause motion after producing, and do not need to rebuild numerical control device coordinate system, such event is such as by the generation such as pause button, warning device.DIS [2] is for regular event group, and after event produces, do not require that digital control system makes an immediate response, such event is by generations such as user button, conventional sense instructions.
Fig. 4 shows the structural representation of control module in the digital control system according to example embodiment of the present invention.Fig. 5 shows the structural representation of the handle according to example embodiment of the present invention.
As shown in Figure 4, the control module of control module, driver module and power module integrated installation are on same base plate.Each module all adopts horizontal mounting means, makes the center of gravity of each module board lower, thus the heavier module of such as driver module, power module and so on can be securely fixed on described base plate.Each module is removably installed on described base plate by connector, and is fixed by erection column and described base plate.And each module is carried out signal by connector and described base plate and is connected, without any aerial lug between each module and described base plate.In this situation, the number of pins of connector may be more, thus may need to apply larger power when dismantling each module.But, when exerting a force uneven, easily cause the damage of module board or connector.In this example embodiment, each module of control module is provided with handle, each handle is arranged on the position near connector on each module board, to facilitate the dismounting of each module by stitch welding manner.As shown in Figure 5, the stitch of handle arranges with predetermined space, thus when lift-pull handle, the circuit board uniform force near connector, all contact pins of connector almost pull away socket simultaneously.
As shown in Figure 4, described base plate is also furnished with the power interface for introducing commercial power, for the unit extensions of digital control system expansion interface (such as, the external expansion interface of NBus bus), for carrying out with man-machine interface user-machine interface that signal is connected and for carrying out with numerical control device the numerical control device interface that signal is connected, each interface all carries out signal by the wiring of backplane circuit plate with each module of control module and is connected.In addition, described base plate can also be furnished with Ethernet interface etc., the control module of control module can be communicated with remote computer by Ethernet interface, thus realizes the remote monitoring of numerical control device.
In addition, in order to make digital control system reliably, stably work.Radome can be used to carry out protecting control module, to reduce the impact (such as, space magnetic field interference etc.) of other modules on it.In addition, can backplane circuit plate wiring in by isolating device by low-voltage control signal lines and high-tension high-power signal (such as, power supply signal) circuit completely isolated, to avoid the mutual interference of signal in transmission line.
In addition, according to the difference of numerical control device, described base plate can also be furnished with lower module: rotational speed control module, for processing the numerical control device that actuating unit is electro spindle, to control the rotating speed of electro spindle; I/O expansion module, such as, for a fairly large number of digital control system of demand I/O, when the processing actuating unit of numerical control device is frock clamp, tool magazine etc., the input and output for digital control system are expanded; Band-type brake control module, for requiring the numerical control device that the Z-axis dropping distance of processing actuating unit is less during unexpected power-off, to control the brake hard of processing actuating unit in numerical control device; Or image recognition control module, for needing the numerical control device carrying out image recognition, carries out image recognition (such as, by CCD (charge coupled cell) imageing sensor etc.) to control numerical control device.
The present invention can be used for continuous path and controls, as numerical control devices such as numerically controlled lathe, CNC milling machine, engraving machine, laser cutting machine, laser-beam welding machine, laser engraving machine, numerical control stamping machine tool, rapidform machine, ultrasonic bonding machine, water jet cutting, the milling of circuit board special type, wafer cutting machines.
Provide in order to the purpose of illustration and description to the detailed description of example embodiment of the present invention above.Not in order to limit or limit the invention to disclosed precise forms.Obviously, many modification and change will be apparent to those skilled in the art.The selection of embodiment and description are in order to principle of the present invention and practical application thereof are described best, thus enable others skilled in the art understand various embodiment of the present invention and be suitable for the specific various modification using expection.Embodiments of the invention can omit some technical characteristics in above-mentioned technical characteristic, only solve the partial technical problems existed in prior art.And disclosed technical characteristic can carry out combination in any.Scope of the present invention is limited by claims and equivalent thereof, and art technology other staff can carry out various modification and combination to technical scheme disclosed in the accompanying claims.
Claims (15)
1., for a digital control system for numerical control device, comprise the man-machine interface and control module with human-computer interaction function, wherein, control module comprises:
Control module, it produces according to the job sequence of workpiece to be processed and sends steering order;
Driver module, it drives the processing actuating unit of numerical control device, to process workpiece to be processed according to the steering order from control module;
Power module, the commercial power of input is converted to voltage required in digital control system by it,
It is characterized in that, each module integration of control module is arranged on same base plate, and is connected by the signal that the wiring of backplane circuit plate realizes between each module.
2. digital control system according to claim 1, is characterized in that, each module of control module is carried out signal by connector and described base plate and is connected, without any aerial lug between each module and described base plate.
3. digital control system according to claim 2, is characterized in that, each module of control module adopts horizontal mounting means to be removably installed on described base plate by connector, and is fixed by erection column.
4. digital control system according to claim 3, is characterized in that, each module of control module is all provided with handle, and each handle is arranged on each module board by stitch welding manner.
5. digital control system according to claim 1, is characterized in that, described base plate is furnished with numerical control device interface, is connected for carrying out signal with numerical control device, and numerical control device interface carries out signal by the wiring of backplane circuit plate with each module of control module and is connected.
6. digital control system according to claim 1, wherein, uses radome to carry out protecting control module, to reduce the impact of other module on it.
7. digital control system according to claim 1, wherein, backplane circuit plate wiring in by isolating device by low-voltage control signal lines and high-tension high-power signal line completely isolated, to avoid signal disturbing.
8. digital control system according to claim 1, it is characterized in that, according to the difference of numerical control device, the I/O expansion module described base plate is also furnished with the rotational speed control module for controlling the speed of mainshaft of processing actuating unit in numerical control device, expanding for the input and output of digital control system, for controlling the band-type brake control module of the brake hard of processing actuating unit in numerical control device or carrying out the image recognition control module of image recognition for controlling numerical control device.
9. digital control system according to claim 1, wherein, the wiring of backplane circuit plate comprises NBus bus, and NBus bus comprises multichannel direct election incoming line and a road universal serial bus.
10. digital control system according to claim 9, wherein, each module of control module all has state-detection element or state indicator elment, state detected by each state-detection element or the state indicated by each state indicator elment are classified as different response rank, to utilize other interrupt request of different response level respectively by different direct election incoming lines notice control module, control module inquires about the state of each module by universal serial bus according to the response rank of received interrupt request, and perform response.
11. digital control systems according to claim 9, wherein, be different response ranks by the state detected by the condition checkout gear of numerical control device or the state classification indicated by state indicating device, to utilize other interrupt request of different response level respectively by different direct election incoming lines notice control module, control module inquires about the state of numerical control device by universal serial bus according to the response rank of received interrupt request, and perform response.
12. digital control systems according to claim 9, wherein, the NBus bus in the wiring of backplane circuit plate has external expansion interface, for the unit extensions of digital control system.
13. digital control systems according to claim 1, it is characterized in that, man-machine interface and control module separated from one another, described base plate is furnished with user-machine interface, man-machine interface is carried out signal with control module each other by user-machine interface and is connected, and user-machine interface carries out signal by the wiring of backplane circuit plate with each module of control module and is connected.
14. digital control systems according to claim 1, is characterized in that, man-machine interface is portable equipment, comprising:
Emergency stop switch, in case of emergency cutting off the power supply of numerical control device;
Touch-screen, for accepting the state of user's input and display Ore-controlling Role and numerical control device.
15. digital control systems according to claim 1, it is characterized in that, man-machine interface is that USB main equipment or USB are from equipment, itself and USB to read job sequence from USB from equipment, are connected to be debugged and condition diagnosing digital control system and numerical control device by USB main equipment from equipment connection with USB main equipment.
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| CN105865767A (en) * | 2016-04-14 | 2016-08-17 | 西安交通大学 | Electric spindle with remote vibration monitoring function, and testing system thereof |
| CN106209539A (en) * | 2015-05-07 | 2016-12-07 | 北京热刺激光技术有限责任公司 | A kind of N-BUS bus network for digital control system |
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