CN107824921A - Scarce the silk judgment means and determination methods of a kind of electric spark machine tool - Google Patents
Scarce the silk judgment means and determination methods of a kind of electric spark machine tool Download PDFInfo
- Publication number
- CN107824921A CN107824921A CN201711361661.7A CN201711361661A CN107824921A CN 107824921 A CN107824921 A CN 107824921A CN 201711361661 A CN201711361661 A CN 201711361661A CN 107824921 A CN107824921 A CN 107824921A
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- clamping mechanism
- silk
- pulse power
- motion control
- normally closed
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010892 electric spark Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 41
- XEBWQGVWTUSTLN-UHFFFAOYSA-M phenylmercury acetate Chemical group CC(=O)O[Hg]C1=CC=CC=C1 XEBWQGVWTUSTLN-UHFFFAOYSA-M 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000002950 deficient Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses scarce the silk judgment means and determination methods of a kind of electric spark machine tool, including motion control card, relay and the pulse power, the motion control card connects relay and the pulse power respectively by signal wire, the relay both ends in normally opened clamping mechanism and the pulse power to the positive pole of knife detection module respectively with being electrically connected with, the normally closed clamping mechanism in the pulse power to the negative pole of knife detection module with being electrically connected with, and the workpiece in the pulse power to the positive pole of knife detection module with being electrically connected with.The present invention is different by detecting the method that the interelectrode discharge voltage at the electrode and workpiece at normally closed clamping mechanism changes to judge from prior art, by detecting wire electrode is whether there is at normally opened clamping mechanism, avoid the occurrence of electrodeless silk at normally opened clamping mechanism, the situation for having wire electrode at normally closed clamping mechanism occurs, production efficiency is improved, reduces the fraction defective of product.
Description
Technical field
The present invention a kind of scarce the silk judgment means and determination methods of electric spark machine tool, belong to fine spray orifice electrical spark working
Work field.
Background technology
Metal electrode silk is typically chosen during electrical discharge machining micropore as tool-electrode.Electro-discharge machining is a fuzzy processing
Process, it is clearly quantitative for the processing loss neither one of wire electrode, in current edm process, for wire electrode
Whether need change, changed by detecting the interelectrode discharge voltage at the electrode and workpiece at normally closed clamping mechanism if being finished
Come what is judged.
There is a drawback in such determination methods, such a situation occur：It is if electrodeless at normally opened clamping mechanism
Thread, there is wire electrode at normally closed clamping mechanism, can also detect that voltage is changed into 0V from 10V at normally closed clamping mechanism, but due to giving
The operation principle of silk mechanism can cause such case to be processed into silk compensation, and such micropore, which does not process, to be stopped,
Scrapping for workpieces processing is caused, adds fraction defective.
The content of the invention
It is an object of the invention to provide scarce the silk judgment means and determination methods of a kind of electric spark machine tool, for judging
Wire electrode is whether there is at normally opened clamping mechanism, improves production efficiency, reduces the fraction defective of product.
A kind of scarce silk judgment means of electric spark machine tool, motive spindle are arranged on guiderail base by guide rail slide block,
So as to realize that Z-direction is moved, normally closed clamping mechanism is fixed on guide rail slide block and moved along guiderail base Z-direction, and normally opened silk clamping machine
Structure is fixed on guiderail base, and wire electrode sequentially passes through normally opened clamping mechanism and normally closed clamping mechanism, in addition to fortune from top to bottom
Dynamic control card, relay, the pulse power and motor driver, the motion control card connected respectively by signal wire relay,
The pulse power, motor driver, normally opened clamping mechanism and normally closed clamping mechanism, the relay both ends respectively with normally opened silk clamping machine
The positive pole of knife detection module is electrically connected with structure and the pulse power, the normally closed clamping mechanism in the pulse power to knife with detecting
The negative pole of module is electrically connected with, and with being electrically connected with the pulse power to the positive pole of knife detection module, the motor drives the workpiece
Dynamic device is moved by Serve Motor Control motive spindle.
Preferably, the motion control card is PMAC motion control cards.
A kind of scarce silk determination methods of electric spark machine tool, are comprised the following steps that：
Step 1：Before processing, normally opened clamping mechanism and normally closed clamping mechanism close；
Step 2：Subsequent motion control card control relay closure；Now, if in normally opened clamping mechanism and normally closed clamping mechanism
There is no wire electrode in one or two, then the detection voltage to knife detection module inside the pulse power is 10V, if normally opened wired
There is wire electrode in mechanism and normally closed clamping mechanism, then the detection voltage to knife detection module inside the pulse power is 0V, with
Afterwards by the Voltage Feedback detected to motion control card, into step 3；
Step 3：If the detection voltage to knife detection module of feedback is 10V, motion control card judges electrodeless silk, provides and stop
The movement instruction only processed, send change electric wire alarm；If the detection voltage to knife detection module of feedback is 0V,
Motion control card judges electrodeless silk, provides the movement instruction that can be processed, and starts normal process.
Beneficial effect：The present invention provides a kind of scarce the silk judgment means and determination methods of electric spark machine tool, and existing
Technology is changed the method that judges not by detecting interelectrode discharge voltage at the electrode and workpiece at normally closed clamping mechanism
Together, wire electrode is whether there is at normally opened clamping mechanism by detecting, avoids the occurrence of electrodeless silk at normally opened clamping mechanism, normally closed silk clamping machine
The situation for having wire electrode at structure occurs, and improves production efficiency, reduces the fraction defective of product.
Brief description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the scarce silk decision circuitry figure of the present invention；
In figure：Workpiece 1, guide rail slide block 2, guiderail base 3, normally opened clamping mechanism 4, normally closed clamping mechanism 5, wire electrode 6, relay
7。
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection
Scope.
A kind of scarce silk judgment means of electric spark machine tool, motive spindle are arranged on guiderail base by guide rail slide block 2
3, so as to realize that Z-direction is moved, normally closed clamping mechanism 5 is fixed on guide rail slide block 2 and along guiderail base 3Z to moving, and normally opened folder
Silk mechanism 4 is fixed on guiderail base 3, and wire electrode sequentially passes through normally opened clamping mechanism 4 and normally closed clamping mechanism 5 from top to bottom,
Also include motion control card, relay 7, the pulse power and motor driver, the motion control card is connected respectively by signal wire
Contact relay, the pulse power, motor driver, normally opened clamping mechanism 4 and normally closed clamping mechanism 5, the both ends of relay 7 difference
With being electrically connected with normally opened clamping mechanism 4 and the pulse power to the positive pole of knife detection module, the normally closed clamping mechanism 5 and pulse
The negative pole of knife detection module is electrically connected with power supply, workpiece 1 and the positive pole electric connection in the pulse power to knife detection module,
The motor driver is moved by Serve Motor Control motive spindle.
Preferably, the motion control card is PMAC motion control cards.
A kind of scarce silk determination methods of electric spark machine tool, are comprised the following steps that：
Step 1：Before processing, normally opened clamping mechanism 4 and normally closed clamping mechanism 5 close；
Step 2：Subsequent motion control card control relay 7 closes；Now, if in normally opened clamping mechanism 4 and normally closed clamping mechanism 5
One or two in there is no wire electrode, then the detection voltage to knife detection module inside the pulse power is 10V, if normally opened folder
There is wire electrode in silk mechanism 4 and normally closed clamping mechanism 4, then the detection voltage to knife detection module inside the pulse power is
0V, then by the Voltage Feedback detected to motion control card, into step 3；
Step 3：If the detection voltage to knife detection module of feedback is 10V, motion control card judges electrodeless silk, provides and stop
The movement instruction only processed, send change electric wire alarm；If the detection voltage to knife detection module of feedback is 0V,
Motion control card judges electrodeless silk, provides the movement instruction that can be processed, and starts normal process.
The operation principle of the present invention is as follows：
It is as shown in Figure 1 the overall structure figure of the present invention, it processes as follows into a compensation principle：
Electronic wire loss compensation mechanism is made up of a pair of electromagnetic type normally-closed and normally opened clamping mechanisms, wherein normally closed clamping mechanism
It is fixed on guide rail slide block along guiderail base Z-direction and moves, and normally opened clamping mechanism is fixed on guiderail base.
Under normal process state, normally opened and normally closed clamping mechanism is in normality, enters a motor and drives normally closed clamping mechanism
Wire electrode is driven to complete servo feed motion, when wire electrode needs to process compensation, normally opened clamping mechanism closure, while normally closed folder
Silk mechanism unclamps, and enters the normally closed clamping mechanism fast fallback that a motor driven is unclamped, and two clamping mechanisms are equal after completing predetermined stroke
Return to normal, realize that silk compensation is entered in the loss of wire electrode
It is illustrated in figure 2 scarce silk judgment means circuit diagram
The scarce silk determination methods of the present invention are realized by the feedback voltage to knife detection module in the pulse power.Processing
Before, normally opened clamping mechanism and normally closed clamping mechanism all close, motion control card control relay closure.If electrodeless silk, pulse
The positive pole and negative pole of power supply form open circuit, then the detection voltage to knife detection module inside the pulse power is 10V, and voltage is anti-
Feed motion control card, motion control card judges electrodeless silk, provides the movement instruction for stopping processing, sends change electric wire report
Alert prompting；If there is wire electrode, the positive pole and negative pole of the pulse power form loop, and the detection voltage to knife detection module is reduced to 0V,
Voltage Feedback is judged there is wire electrode to motion control card, motion control card, the movement instruction that can be processed is provided, starts normal
Processing.
The pulse power that the present invention uses and inside to knife detection module for conventional technical means, so plus in detail
State.
By magnet control, motion control card passes through control for the folding of normally opened clamping mechanism and normally closed clamping mechanism in the present invention
The on/off of electromagnet processed, so as to control the folding of normally opened clip and normally closed clip, belong to conventional technical means so not adding
It is described in detail.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
Two kinds of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (3)
1. a kind of scarce silk judgment means of electric spark machine tool, motive spindle are arranged on guiderail base by guide rail slide block, from
And realize that Z-direction is moved, normally closed clamping mechanism is fixed on guide rail slide block and moved along guiderail base Z-direction, and normally opened clamping mechanism
It is fixed on guiderail base, wire electrode sequentially passes through normally opened clamping mechanism and normally closed clamping mechanism from top to bottom, it is characterised in that
Also include motion control card, relay, the pulse power and motor driver, the motion control card is connected respectively by signal wire
Relay, the pulse power, motor driver, normally opened clamping mechanism and normally closed clamping mechanism, the relay both ends respectively with often
Open in clamping mechanism and the pulse power and the positive pole of knife detection module is electrically connected with, in the normally closed clamping mechanism and the pulse power
The negative pole of knife detection module is electrically connected with, the workpiece in the pulse power to the positive pole of knife detection module with being electrically connected with, institute
Motor driver is stated to move by Serve Motor Control motive spindle.
A kind of 2. scarce silk judgment means of electric spark machine tool according to claim 1, it is characterised in that the motion
Control card is PMAC motion control cards.
3. the scarce silk determination methods of a kind of electric spark machine tool, it is characterised in that using the electricity fire described in claim 1 and 2
The scarce silk judgment means of flower machining tool carry out lacking comprising the following steps that for silk judgement：
Step 1：Before processing, normally opened clamping mechanism and normally closed clamping mechanism close；
Step 2：Subsequent motion control card control relay closure；Now, if in normally opened clamping mechanism and normally closed clamping mechanism
There is no wire electrode in one or two, then the detection voltage to knife detection module inside the pulse power is 10V, if normally opened wired
There is wire electrode in mechanism and normally closed clamping mechanism, then the detection voltage to knife detection module inside the pulse power is 0V, with
Afterwards by the Voltage Feedback detected to motion control card, into step 3；
Step 3：If the detection voltage to knife detection module of feedback is 10V, motion control card judges electrodeless silk, provides and stop
The movement instruction only processed, send change electric wire alarm；If the detection voltage to knife detection module of feedback is 0V,
Motion control card judges electrodeless silk, provides the movement instruction that can be processed, and starts normal process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361661.7A CN107824921A (en) | 2017-12-18 | 2017-12-18 | Scarce the silk judgment means and determination methods of a kind of electric spark machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711361661.7A CN107824921A (en) | 2017-12-18 | 2017-12-18 | Scarce the silk judgment means and determination methods of a kind of electric spark machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107824921A true CN107824921A (en) | 2018-03-23 |
Family
ID=61645011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711361661.7A Pending CN107824921A (en) | 2017-12-18 | 2017-12-18 | Scarce the silk judgment means and determination methods of a kind of electric spark machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107824921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548310A (en) * | 2020-11-30 | 2021-03-26 | 沈阳机床股份有限公司 | Workpiece detection method for automatic feeding machine tool |
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| CN101362236A (en) * | 2008-05-19 | 2009-02-11 | 清华大学 | Micro electrode filament feeding guide mechanism for processing micro electric spark |
| CN201201083Y (en) * | 2008-04-08 | 2009-03-04 | 哈尔滨工业大学 | Duplicate supply mode pulse power source for numerical control electrospark wire-electrode cutting |
| CN102248235A (en) * | 2011-05-23 | 2011-11-23 | 哈尔滨工业大学 | Device and method for detecting discharge state in electric spark linear cutting work gap |
| CN105345186A (en) * | 2015-12-02 | 2016-02-24 | 莱芜钢铁集团有限公司 | Device and method for removing broken screw tap |
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| CN208051083U (en) * | 2017-12-18 | 2018-11-06 | 无锡微研精微机械技术有限公司 | A kind of scarce silk judgment means of electric spark machine tool |
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2017
- 2017-12-18 CN CN201711361661.7A patent/CN107824921A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201083Y (en) * | 2008-04-08 | 2009-03-04 | 哈尔滨工业大学 | Duplicate supply mode pulse power source for numerical control electrospark wire-electrode cutting |
| CN101362236A (en) * | 2008-05-19 | 2009-02-11 | 清华大学 | Micro electrode filament feeding guide mechanism for processing micro electric spark |
| CN101327534A (en) * | 2008-07-30 | 2008-12-24 | 王凤清 | Pulse power source for electric spark machining capable of decreasing attrition of processing electrode |
| CN102248235A (en) * | 2011-05-23 | 2011-11-23 | 哈尔滨工业大学 | Device and method for detecting discharge state in electric spark linear cutting work gap |
| CN105345186A (en) * | 2015-12-02 | 2016-02-24 | 莱芜钢铁集团有限公司 | Device and method for removing broken screw tap |
| 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 |
| CN106270861A (en) * | 2016-09-12 | 2017-01-04 | 无锡微研精微机械技术有限公司 | The anticollision protection system of a kind of spark-erosion machine tool and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112548310A (en) * | 2020-11-30 | 2021-03-26 | 沈阳机床股份有限公司 | Workpiece detection method for automatic feeding machine tool |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180323 |
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