CN106270861B - A kind of anticollision protection system and method for spark-erosion machine tool - Google Patents
A kind of anticollision protection system and method for spark-erosion machine tool Download PDFInfo
- Publication number
- CN106270861B CN106270861B CN201610818554.1A CN201610818554A CN106270861B CN 106270861 B CN106270861 B CN 106270861B CN 201610818554 A CN201610818554 A CN 201610818554A CN 106270861 B CN106270861 B CN 106270861B
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- CN
- China
- Prior art keywords
- control card
- motion control
- pulse power
- motor driver
- analog quantity
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Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The present invention discloses a kind of anticollision protection system and method for spark-erosion machine tool; including motor driver, motion control card, the pulse power, voltmeter, industrial personal computer; the industrial personal computer controlled motion control card; the motion control card is separately connected motor driver and the pulse power; the motor driver controls main shaft by motor and moves up and down; the pulse power is separately connected wire electrode anode and workpiece cathode, and the pulse power is connected with external voltage table, for observing voltage condition.The present invention is real-time monitoring system, saves and replaces axis accessory, dismounting axis cost and maintenance cost, it is ensured that the lasting machining accuracy of lathe.
Description
Technical field
The present invention relates to a kind of anticollision protection system of spark-erosion machine tool and methods, belong to electric spark machining field.
Background technology
Machine tool hits knife, the lathe accident that main shaft collides with workpiece or tooling during the motion.Hit knife
The precision that lathe can generally be influenced more effectively causes equipment damage.General machine tool can all use have limited firmly including lathe,
Soft limit and modes prevent from hitting knife including optoelectronic switch etc..
Original Anti-bumping protection has following drawback：1）Since the shape specification of workpiece is different, limit, which differs, surely plays guarantor
The effect of shield；2）When operating personnel's maloperation, original anti-collision system cannot play a protective effect in time；3）According to not
Same frock clamp, it is therefore necessary to adjust the physical location of limit, debugging is difficult, and wastes time；4）Writing program error
When, it just will appear severe crash.It causes lathe important component to damage, reduces machine finish.
Invention content
Purpose：The present invention provides a kind of anticollision protection system and method for spark-erosion machine tool, and real-time monitoring system is saved more
Change axis accessory, dismounting axis cost and maintenance cost, it is ensured that the lasting machining accuracy of lathe.
Technical solution：In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of anticollision protection system of spark-erosion machine tool, including motor driver, motion control card, the pulse power, voltage
Table, industrial personal computer and warning device, the industrial personal computer are separately connected motion control card and warning device, and the motion control card passes through
Signal wire is separately connected motor driver and the pulse power, and the motor driver controls main shaft by motor and moves up and down, institute
It states the pulse power and is separately connected wire electrode anode and workpiece cathode, and the information of acquisition is fed back into motion control card, the arteries and veins
It rushes power supply and is connected with external voltage table, for observing voltage condition.
Preferably, the pulse power includes analog quantity measure loop, and it is negative that the analog quantity measure loop is connected in parallel on workpiece
In polar circuit on concatenated sampling resistor, and the electrical parameter information acquired is fed back into motion control card by data line.
A kind of Anti-bumping protection method of spark-erosion machine tool, using the anticollision protection system of spark-erosion machine tool, specific steps are such as
Under：
3a）Industrial personal computer drives main shaft by motion control card start-up motor driver, and by motor driver control motor
It moves downward；
3b）The pulse power is opened by motion control card control, is added between main shaft lower end electrode silk anode and workpiece cathode
Upper voltage, while electrical parameter information is acquired the analog quantity measure loop by being connected in parallel on sampling resistor；
3c）Step 3b）The electrical parameter information Real-time Feedback of middle analog quantity measure loop acquisition works as simulation to motion control card
When measuring the maximum value of hitting knife of the value of feedback more than or equal to setting, 3d is entered step）, when analog quantity value of feedback hits knife less than setting
Maximum value when, enter step 3e）；
3d）Motion control card control motor driver stops main shaft and continues to move downward, and information is fed back to industrial personal computer
And warning device is triggered, the pulse power is simultaneously closed off, work terminates；
3e）Motion control card control motor driver drives main shaft to continue to move to positioning completion, simultaneously closes off pulse electricity
Source, work terminate.
Advantageous effect：The present invention provides a kind of anticollision protection system and method for spark-erosion machine tool, and anticollision is reliable, in all directions
Monitoring, fast response time in real time；Do not conflict with original mechanism, achieve the effect that duplicate protection, reduces security risk；Effectively
It avoids colliding because of operation or misprogrammed due to, prevents from thereby resulting in workpiece damage, scraps and decline with machine tool accuracy, to subtract
Few lathe shutdown loss, reduces tune machine cost；It saves and replaces axis accessory, dismounting axis cost；Improve working efficiency, save repair at
This, it is ensured that the lasting machining accuracy of lathe.
Description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the analog quantity measure loop of the present invention；
Fig. 3 is the work flow diagram of the present invention；
In figure：Motive spindle 1, wire electrode 2, workpiece 3.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings：
A kind of anticollision protection system of spark-erosion machine tool, including motor driver, motion control card, the pulse power, voltage
Table, industrial personal computer and warning device, the industrial personal computer are separately connected motion control card and warning device, and the motion control card passes through
Signal wire is separately connected motor driver and the pulse power, and the motor driver controls main shaft by motor and moves up and down, institute
It states the pulse power and is separately connected wire electrode anode and workpiece cathode, and the information of acquisition is fed back into motion control card, the arteries and veins
It rushes power supply and is connected with external voltage table, for observing voltage condition.
Preferably, the pulse power includes analog quantity measure loop, and it is negative that the analog quantity measure loop is connected in parallel on workpiece
In polar circuit on concatenated sampling resistor, and the electrical parameter information acquired is fed back into motion control card by data line.
A kind of Anti-bumping protection method of spark-erosion machine tool, using the anticollision protection system of spark-erosion machine tool, specific steps are such as
Under：
3a）Industrial personal computer drives main shaft by motion control card start-up motor driver, and by motor driver control motor
It moves downward；
3b）The pulse power is opened by motion control card control, is added between main shaft lower end electrode silk anode and workpiece cathode
Upper voltage, while electrical parameter information is acquired the analog quantity measure loop by being connected in parallel on sampling resistor；
3c）Step 3b）The electrical parameter information Real-time Feedback of middle analog quantity measure loop acquisition works as simulation to motion control card
Measure the maximum value for hitting knife that value of feedback is more than or equal to setting（M205≥1.3V）When, enter step 3d）, when analog quantity value of feedback is small
In the maximum value for hitting knife of setting（M205 < 1.3V）When, enter step 3e）；
3d）Motion control card control motor driver stops main shaft and continues to move downward, and information is fed back to industrial personal computer
And warning device is triggered, the pulse power is simultaneously closed off, work terminates；
3e）Motion control card control motor driver drives main shaft to continue to move to positioning completion, simultaneously closes off pulse electricity
Source, work terminate.
Motion control card mentioned by the present invention is mainly completed by kinetic control system PMAC, and PMAC is a kind of ripe
There are good optical isolation in industrial motion controller, inside, and anti-interference strong, reliability is high, and transmission rate response is fast, simulation
Measure Real-time Feedback.
Then the analog quantity measure loop that the present invention uses passes through analog quantity by monitoring the voltage value of sampling resistor in real time
Conversion, the value that motion control card can be read is converted into, due to the switch technology of analog quantity and the real-time monitoring of sampling resistor
Technology is conventional technical means, is described in detail so not adding.The pulse power that the present invention refers to is the published technology of our company, is passed through
Analog quantity measure loop is added in existing pulse power technology and realizes being detected as those skilled in the art and capable of slapping for circuit
The conventional technical means held.
Above to implement to be that the preferred embodiment of the invention is described, however, the present invention is not limited thereto is not departing from this hair
Under bright design and operation principle, various modifications that those of ordinary skill in the art make the technical solution and material of the utility model
And improvement, the protection that should all be determined in claims of the present invention.
Claims (2)
1. a kind of anticollision protection system of spark-erosion machine tool, which is characterized in that including motor driver, motion control card, pulse
Power supply, voltmeter, industrial personal computer and warning device, the industrial personal computer are separately connected motion control card and warning device, the movement
Control card is separately connected motor driver and the pulse power by signal wire, and the motor driver is controlled by motor on main shaft
Lower movement, the pulse power is separately connected wire electrode anode and workpiece cathode, and the information of acquisition is fed back to motion control
Card, the pulse power are connected with external voltage table, and for observing voltage condition, the pulse power includes that analog quantity detects back
Road, the electrical parameter that the analog quantity measure loop is connected in parallel in workpiece cathode traces on concatenated sampling resistor, and will be acquired
Information feeds back to motion control card by data line.
2. a kind of Anti-bumping protection method of spark-erosion machine tool, which is characterized in that using spark-erosion machine tool described in claim 1
Anticollision protection system is as follows：
3a）Industrial personal computer drives main shaft downward by motion control card start-up motor driver, and by motor driver control motor
Movement；
3b）The pulse power is opened by motion control card control, plus electricity between main shaft lower end electrode silk anode and workpiece cathode
Pressure, while electrical parameter information is acquired the analog quantity measure loop by being connected in parallel on sampling resistor；
3c）Step 3b）The electrical parameter information Real-time Feedback of middle analog quantity measure loop acquisition is to motion control card, when analog quantity is anti-
When feedback value is more than or equal to the maximum value for hitting knife of setting, 3d is entered step）, when analog quantity value of feedback hits knife most less than setting
When big value, 3e is entered step）；
3d）Motion control card control motor driver stops main shaft and continues to move downward, and information is fed back to industrial personal computer and is touched
It transmits messages alarm device, simultaneously closes off the pulse power, work terminates；
3e）Motion control card control motor driver drives main shaft to continue to move to positioning completion, simultaneously closes off the pulse power, work
Work terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610818554.1A CN106270861B (en) | 2016-09-12 | 2016-09-12 | A kind of anticollision protection system and method for spark-erosion machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610818554.1A CN106270861B (en) | 2016-09-12 | 2016-09-12 | A kind of anticollision protection system and method for spark-erosion machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106270861A CN106270861A (en) | 2017-01-04 |
| CN106270861B true CN106270861B (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610818554.1A Expired - Fee Related CN106270861B (en) | 2016-09-12 | 2016-09-12 | A kind of anticollision protection system and method for spark-erosion machine tool |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824921A (en) * | 2017-12-18 | 2018-03-23 | 无锡微研精微机械技术有限公司 | Scarce the silk judgment means and determination methods of a kind of electric spark machine tool |
| CN110695475B (en) * | 2019-10-15 | 2020-12-08 | 东莞台一盈拓科技股份有限公司 | Method for protecting side wall of workpiece of fine hole discharge punching machine |
| CN113751739B (en) * | 2021-08-03 | 2023-02-21 | 南京工大数控科技有限公司 | Intelligent anti-collision system of numerical control machine tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4975557A (en) * | 1988-12-26 | 1990-12-04 | Mitsubishi Denki Kabushiki Kaisha | Wire cutting electric discharge machine with nozzle collision detection |
| US6252192B1 (en) * | 2000-01-18 | 2001-06-26 | Precision Die & Machine Company | EDM tool holder |
| CN2726796Y (en) * | 2004-06-24 | 2005-09-21 | 青岛自动化研究所 | Electric spark machining controller for tire matrix pattern forming |
| CN102896382A (en) * | 2011-07-24 | 2013-01-30 | 天津恩君商贸有限公司 | Electric spark forming machine |
| CN105195840A (en) * | 2015-09-14 | 2015-12-30 | 佛山市铬维科技有限公司 | Control method of electrical discharge machining power supply capable of realizing automatic boosting |
| CN105353724A (en) * | 2015-12-07 | 2016-02-24 | 上海交通大学 | Alarm system for numerical control machine tool hand-operated safety operation |
-
2016
- 2016-09-12 CN CN201610818554.1A patent/CN106270861B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4975557A (en) * | 1988-12-26 | 1990-12-04 | Mitsubishi Denki Kabushiki Kaisha | Wire cutting electric discharge machine with nozzle collision detection |
| US6252192B1 (en) * | 2000-01-18 | 2001-06-26 | Precision Die & Machine Company | EDM tool holder |
| CN2726796Y (en) * | 2004-06-24 | 2005-09-21 | 青岛自动化研究所 | Electric spark machining controller for tire matrix pattern forming |
| CN102896382A (en) * | 2011-07-24 | 2013-01-30 | 天津恩君商贸有限公司 | Electric spark forming machine |
| CN105195840A (en) * | 2015-09-14 | 2015-12-30 | 佛山市铬维科技有限公司 | Control method of electrical discharge machining power supply capable of realizing automatic boosting |
| CN105353724A (en) * | 2015-12-07 | 2016-02-24 | 上海交通大学 | Alarm system for numerical control machine tool hand-operated safety operation |
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| CN106270861A (en) | 2017-01-04 |
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Granted publication date: 20181109 Termination date: 20190912 |