CN106424983A - Control system and method for medium-speed wire cut electrical discharge machining - Google Patents
Control system and method for medium-speed wire cut electrical discharge machining Download PDFInfo
- Publication number
- CN106424983A CN106424983A CN201611033484.5A CN201611033484A CN106424983A CN 106424983 A CN106424983 A CN 106424983A CN 201611033484 A CN201611033484 A CN 201611033484A CN 106424983 A CN106424983 A CN 106424983A
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- wire
- cpu
- plc
- high pressure
- relay
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
Abstract
The invention discloses a control system for medium-speed wire cut electrical discharge machining. The control system comprises an upper computer, a CPU, a PLC, an axle drive circuit, a relay and a hand-control box, wherein the upper computer carries out man-machine interaction with a user; the CPU carries out data interaction with the upper computer, and carries out data interaction and control calculation with the PLC; the PLC is used for controlling data interaction between the CPU and an axle driver, the relay, breakdown voltage/working voltage/negative voltage and a hand-control box functional blocks, and is used for outputting processing waveforms to a machine tool electrode according to setting; the axle drive circuit is used for controlling movement of each mechanical shaft of the machine tool; the relay is used for controlling and monitoring signals such as a machine tool water pump signal, a wire winding signal, a wire fracture signal, an unmanned signal, a high-pressure processing signal and a power-down signal; and the hand-control box is used for manually inputting movement of each axle, water pump on-off, wire winding speed, a wire winding mode, and a start/stop instruction. The invention discloses a control method for medium-speed wire cut electrical discharge machining, and the control method comprises a step of being prepared for processing, and a wire-winding cutting step. The system can protect products of users from being damaged to the greatest extent, so that working stability and working safety of the whole wire cutting system are improved.
Description
Technical field
The present invention relates to electric spark linear cutting machine, more particularly, to a kind of middle wire WEDM control system and
Method.
Background technology
Middle wire WEDM (Medium-speed Wire cut Electrical Discharge
Machining, MS-WEDM), belong to reciprocal high-speed wire electrical discharge machine tool category, be in high speed to-and-fro thread feed electric spark
Multiple cutting function is realized on wire cutting machine, is referred to as middle wire wire cutting.Conventional middle wire WEDM has
Operation inconvenience, system easily crashes, job insecurity, the defect such as board is perishable, the control of these defects and middle wire wire cutting machine
Phylogenetic relationship is tight.Therefore, it is necessary to structure optimization is carried out to the control system of this middle wire WEDM, with gram
Take drawbacks described above.
Content of the invention
It is an object of the invention to provide a kind of middle wire WEDM control system and method, improve processing speed
Degree, lifting workpieces precision and fineness, reduce cutting wire loss.
The present invention be employed technical scheme comprise that by its technical problem of solution,
A kind of middle wire WEDM control system, including：
Host computer, carries out man-machine interaction with user, and the input completing part program is related each to operation, electro-discharge machining
The operation of function, the typing of various control configuration information data and management, and be controlled and status data with CPU part
Transmission interaction；
CPU, is calculated with host computer interaction data and PLC interaction data and control；
PLC, controls CPU and axle driving, relay, punctures high pressure/operating voltage/negative voltage and manual control box functional block
Data interaction, simultaneously according to setting output processing waveform to lathe electrode；
Axle drive circuit, the movement to lathe each mechanical axis X, Y, Z, U, V is controlled；
Relay, the control to signals such as lathe water pump, wire, fracture of wire, unmanned, high voltage units and power down and monitoring；
Manual control box, is manually entered to each axle movement, pump switch, wire travelling speed and mode, startup/pause instruction.
Host computer is connected with PLC by CPU, PLC is connected with manual control box, axle drive circuit and relay, and passes through
Circuit is connected with lathe electrode.
Host computer adopts industrial master board and SSD solid state hard disc.
CPU adopts embedded DSP.
A kind of middle wire WEDM control method, comprises the following steps：
(1) prepare processing, workpiece is installed on middle wire WEDM, and moves to precalculated position, upper
Select processed file in the machine of position, and select automatic cooked mode, select to bring into operation by manual control box button, then PLC is loaded into
First knife parameter, opens working solution water pump, starts wire；
(2) after starting wire, output punctures high pressure, moves by processed file path, if puncturing high pressure after workpiece is punctured
Do not export, cutting wire rollback, continue to output and puncture high pressure, if workpiece is breakdown, is exported machining voltage and born by predetermined set
To voltage, such as cutting wire does not reach the first knife end position, then rollback continues to output and punctures high pressure, such as reaches the first knife stop bits
Put, be then loaded into the second knife parameter, continue to output and puncture high pressure, and press processed file path and move, circulation is repeatedly up to last
Knife machines.
It is an advantage of the current invention that this system is passed through to control detached control structure using host computer man-machine interaction and CPU,
By using the hard disk write-protecting technology ensureing that windows system will not be collapsed, by quickly being stopped using power supply monitoring, silk cylinder
The measures such as car, communications protocol protection and processing auditory tone cues warning are so that this system not only under normal operation can be reliable
Safe operation, even and if after the abnormal operation situation such as unexpected power-off, jerk, still can recover normally to run, maximum
The product protecting user of degree is not damaged, the high job stability and the safety that improve whole System of HS-WEDM
Property.
Brief description
Fig. 1 is the structural representation of control system proposed by the present invention；
Fig. 2 is the flow chart of control method proposed by the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below
Close diagram and specific embodiment, the present invention is expanded on further.
As shown in figure 1, middle wire WEDM control system proposed by the present invention includes：
Host computer, carries out man-machine interaction with user, and the input completing part program is related each to operation, electro-discharge machining
The operation of function, the typing of various control configuration information data and management, and be controlled and status data with CPU part
Transmission interaction；CPU, is calculated with host computer interaction data and PLC interaction data and control；PLC, controls CPU to drive, continue with axle
Electrical equipment, puncture the data interaction of high pressure/operating voltage/negative voltage and manual control box functional block, simultaneously according to setting output processing
Waveform is to lathe electrode；Axle drive circuit, the movement to lathe each mechanical axis X, Y, Z, U, V is controlled；Relay, to lathe
The control of signal and the monitorings such as water pump, wire, fracture of wire, unmanned, high voltage units and power down；Manual control box, water pump mobile to each axle is opened
Close, wire travelling speed and mode, being manually entered of startup/pause instruction.Wherein, host computer is connected with PLC by CPU, and PLC connects
It is connected to manual control box, axle drive circuit and relay, and connected with lathe electrode by circuit.Host computer adopt industrial master board with
And SSD solid state hard disc.CPU adopts embedded DSP.
As shown in Fig. 2 middle wire WEDM control method proposed by the present invention comprises the following steps：(1) accurate
Standby processing, workpiece is installed on middle wire WEDM, and moves to precalculated position, selects processing in host computer
File, and select automatic cooked mode, select to bring into operation by manual control box button, then PLC is loaded into the first knife parameter, opens
Working solution water pump, starts wire；(2) after starting wire, output punctures high pressure, moves by processed file path after workpiece is punctured,
If puncturing high pressure not exporting, cutting wire rollback, continue to output and puncture high pressure, if workpiece is breakdown, by predetermined set output
Machining voltage and negative voltage, such as cutting wire does not reach the first knife end position, then rollback continues to output and punctures high pressure, such as reaches
First knife end position, then be loaded into the second knife parameter, continue to output and puncture high pressure, and presses the movement of processed file path, and circulation is anti-
Again until last knife machines.
This control system each several part operation principle is：
Epigynous computer section：Mainly it is responsible for carrying out man-machine interaction with user, complete the input of part program and operate, put
Operation, the typing of various control configuration information data and the management of the related each function of electric machining, and be controlled with CPU part
Transmission interaction with status data.
CPU part：Mainly it is responsible for and host computer interaction data and the work(such as logic control part interaction data and control calculating
Energy
Logical gate：The data being mainly responsible for CPU with functional blocks such as axle driving, relay, HP/IP/FP and manual control box is handed over
Mutually, process waveform to electrode according to setting output simultaneously
Axle drive part：Mainly it is responsible for the mobile control of lathe each mechanical axis X, Y, Z, U, V etc.
Relay part：Mainly it is responsible for the control to signals such as lathe water pump, wire, fracture of wire, unmanned, high voltage units and power down
System and monitoring
Manual control box part：Main realization instructs to each axle movement, pump switch, wire travelling speed and mode, startup/time-out etc.
Be manually entered
Processing waveform portion is made up of HP/IP/FP tri- part, and functions are：
A.HP punctures high pressure：Export within the whole pressing period (ON cycle), energy (size of current) can set.For processing
After beginning, quick realization effectively punctures, and reduces and waits breakdown time, thus improving discharging efficiency, shortens process time.
B.IP operating voltage：Within the pressing period (ON cycle), without occurring effectively puncturing situation, then do not export；
When occurring effectively puncturing situation, start with staircase waveform output.When ladder initial energy, ladder end point energy and ladder step-length
Between can set.For providing main energy to cut workpiece after puncturing, staircase waveform can effectively reduce silk and damage, and extend the wood wool life-span
C.FP negative voltage：The pressing period (ON cycle) and be not pressurized between the cycle (OFF period) by rule export, defeated
Go out rule with the material of workpiece, size, the difference of processing fineness and different, the frequency whether controllable waveform exports, exports
Energy of rate, the duration of output and output etc..For eliminating the ionization situation in process, fineness can be effectively improved, subtract
Situations such as few arcing, short circuit, occurs.
Benefit from various complex controll waveform (HP/IP/FP), (High speed logic chips, circuit prolongs for accurate logic control
When<5ns, time control minimum resolution is up to 0.1us), various control algolithm (arcing fault control, electric discharge staircase waveform, etc.
Energy/etc. pulsewidth processing etc.) and accurate lathe size so that this cutting machine achieves with respect to similar-type products and cuts faster
Cut speed, the fineness of the loss of lower molybdenum filament, more accurate accessory size and Geng Gao.
Abundant user interface, easily parameter configuration storehouse, operate in elegant in appearance in windows xpe system and
It is easy to the operation interface operating, supports to import user's processed file by the USB interface of host computer simultaneously, user can be used and appoints
What computer is processed the design of file, thus realizing designing in processing.This can only be compared with other like products on market
It is processed the design of file based on the host computer of win98 or dos system and the operation that can not be processed simultaneously and design
For, greatly save user's valuable time.Various user's requests can be met by the above design, and greatly carry
The high convenience of user operation.
By detached control structure is controlled using host computer man-machine interaction and CPU, by using guarantee windows system
The hard disk write-protecting technology that will not collapse, by using power supply monitoring, silk cylinder Quick brake, communications protocol protection and processing sound
Point out the measures such as warning so that this system not only can reliable and secure be run under normal operation, even and if breaking suddenly
After the abnormal operation situation such as electricity, jerk, still can recover normally to run, farthest protect the product of user not to be subject to
Damage, the high job stability and the security that improve whole System of HS-WEDM.
Host computer adopts technical grade mainboard (X86-based), embedded X PE operating system, and SSD solid-state electronic disk, on software
Realize writing protection function, can achieve powered-down at any time.This makes system never collapse, and improves the reliability of system, and effective fall
Low later maintenance cost.
CPU adopts embedded DSP, and program is directly run in built-in FLASH, supports online program rewriting；Watch
Take running orbit storage and adopt ferrite internal memory.These greatly improve the stability of system, and support that user carries out updating operation,
Can conveniently more new procedures, strengthen Consumer's Experience.
Host computer man machine operation interface is succinct, and Consumer's Experience is friendly, and partial content also can require to carry out according to user
Customized design, allows each user be owned by oneself unique product.System adopts the pulse power, has very high cutting speed
Degree, very high fineness and very low silk damage, and can effectively reduce power supply power consumption.Using anti-electrolysis power technology, greatly improve
Parts size precision.Hybrid stepping motor can be supported, AC servo motor etc..User can choose to install grating scale, realizes fully closed
Ring controls.Four axles realize backlash Compensation of Half and pitch compensation it is ensured that the cutting accuracy of lathe, positioning precision.Power-off in processing
Reprocessing ensures that precision no offsets.
Embodiment of above only technology design to illustrate the invention and feature, its object is to allow those skilled in the art
Member understands present disclosure and is carried out, and can not be limited the scope of the invention with this, all spiritual according to the present invention
Equivalence changes or modification that essence is done, all should cover within the scope of the present invention.
Claims (5)
1. a kind of middle wire WEDM control system is it is characterised in that include：
Host computer, carries out man-machine interaction with user, completes input and operation, the related each function of electro-discharge machining of part program
Operation, the typing of various control configuration information data and management, and and CPU part be controlled the transmission with status data
Interaction；
CPU, is calculated with host computer interaction data and PLC interaction data and control；
PLC, controls CPU and axle driving, relay, punctures the data of high pressure/operating voltage/negative voltage and manual control box functional block
Interaction, simultaneously according to setting output processing waveform to lathe electrode；
Axle drive circuit, the movement to each mechanical axis of lathe is controlled；
Relay, the control to signals such as lathe water pump, wire, fracture of wire, unmanned, high voltage units and power down and monitoring；
Manual control box, is manually entered to each axle movement, pump switch, wire travelling speed and mode, startup/pause instruction.
2. a kind of middle wire WEDM control system according to claim 1 is it is characterised in that host computer leads to
Cross CPU to connect with PLC, PLC is connected with manual control box, axle drive circuit and relay, and pass through circuit and lathe electrode phase
Connect.
3. a kind of middle wire WEDM control system according to claim 1 is it is characterised in that host computer is adopted
With industrial master board and SSD solid state hard disc.
4. a kind of middle wire WEDM control system according to claim 1 is it is characterised in that CPU adopts
Embedded DSP.
5. a kind of middle wire WEDM control method is it is characterised in that comprise the following steps：
(1) prepare processing, workpiece is installed on middle wire WEDM, and moves to precalculated position, in host computer
Middle selection processed file, and select automatic cooked mode, select to bring into operation by manual control box button, then PLC is loaded into first
Knife parameter, opens working solution water pump, starts wire；
(2) wire cutting, output after starting wire punctures high pressure, moves by processed file path, if hit after workpiece is punctured
Wear high pressure not exporting, cutting wire rollback, continue to output and puncture high pressure, if workpiece is breakdown, by predetermined set output processing electricity
Pressure and negative voltage, such as cutting wire does not reach the first knife end position, then rollback continues to output and punctures high pressure, such as reaches the first knife
End position, then be loaded into the second knife parameter, continue to output and puncture high pressure, and press processed file path move, circulation repeatedly until
Last knife machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033484.5A CN106424983A (en) | 2016-11-20 | 2016-11-20 | Control system and method for medium-speed wire cut electrical discharge machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033484.5A CN106424983A (en) | 2016-11-20 | 2016-11-20 | Control system and method for medium-speed wire cut electrical discharge machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106424983A true CN106424983A (en) | 2017-02-22 |
Family
ID=58221232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033484.5A Pending CN106424983A (en) | 2016-11-20 | 2016-11-20 | Control system and method for medium-speed wire cut electrical discharge machining |
Country Status (1)
| Country | Link |
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| CN (1) | CN106424983A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799526A (en) * | 2017-04-01 | 2017-06-06 | 广东商鼎智能设备有限公司 | The control system and spark-erosion machine tool of spark-erosion machine tool |
| CN108856927A (en) * | 2018-07-31 | 2018-11-23 | 深圳市山龙智控有限公司 | Embedded linear incision equipment and control method based on ARM |
| CN108941812A (en) * | 2018-09-12 | 2018-12-07 | 南京航空航天大学无锡研究院 | Device is arranged in a kind of parameter of to-and-fro thread feed electric spark wire-electrode cutting machine automatically |
| CN113523466A (en) * | 2021-08-05 | 2021-10-22 | 金美威(浙江)智能科技有限公司 | Slow-walking wire cutting control system |
| CN113770462A (en) * | 2021-08-03 | 2021-12-10 | 华锠永晟智能科技(昆山)有限公司 | Electric spark wire-electrode cutting numerical control wire traveling equipment |
| CN113843904A (en) * | 2020-06-28 | 2021-12-28 | 银川隆基光伏科技有限公司 | Method and device for cutting solar silicon wafer and storage medium |
-
2016
- 2016-11-20 CN CN201611033484.5A patent/CN106424983A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799526A (en) * | 2017-04-01 | 2017-06-06 | 广东商鼎智能设备有限公司 | The control system and spark-erosion machine tool of spark-erosion machine tool |
| CN106799526B (en) * | 2017-04-01 | 2019-02-12 | 广东商鼎智能设备有限公司 | The control system and spark-erosion machine tool of spark-erosion machine tool |
| CN108856927A (en) * | 2018-07-31 | 2018-11-23 | 深圳市山龙智控有限公司 | Embedded linear incision equipment and control method based on ARM |
| CN108941812A (en) * | 2018-09-12 | 2018-12-07 | 南京航空航天大学无锡研究院 | Device is arranged in a kind of parameter of to-and-fro thread feed electric spark wire-electrode cutting machine automatically |
| CN113843904A (en) * | 2020-06-28 | 2021-12-28 | 银川隆基光伏科技有限公司 | Method and device for cutting solar silicon wafer and storage medium |
| CN113770462A (en) * | 2021-08-03 | 2021-12-10 | 华锠永晟智能科技(昆山)有限公司 | Electric spark wire-electrode cutting numerical control wire traveling equipment |
| CN113770462B (en) * | 2021-08-03 | 2023-10-31 | 华锠永晟智能科技(昆山)有限公司 | Wire feeding equipment for wire electric discharge machine |
| CN113523466A (en) * | 2021-08-05 | 2021-10-22 | 金美威(浙江)智能科技有限公司 | Slow-walking wire cutting control system |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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