CN208051083U - A kind of scarce silk judgment means of electric spark machine tool - Google Patents
A kind of scarce silk judgment means of electric spark machine tool Download PDFInfo
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- CN208051083U CN208051083U CN201721765604.0U CN201721765604U CN208051083U CN 208051083 U CN208051083 U CN 208051083U CN 201721765604 U CN201721765604 U CN 201721765604U CN 208051083 U CN208051083 U CN 208051083U
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- clamping mechanism
- pulse power
- normally closed
- detection module
- silk
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Abstract
The utility model discloses a kind of scarce silk judgment means of electric spark machine tool, including motion control card, relay and the pulse power, the motion control card is separately connected relay and the pulse power by signal wire, the relay both ends are respectively electrically connected the anode of knife detection module with normally opened clamping mechanism and the pulse power, the normally closed clamping mechanism is electrically connected the cathode of knife detection module with the pulse power, and the workpiece is electrically connected the anode of knife detection module with the pulse power.The utility model 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 the prior art, by detecting, whether there is or not wire electrodes at normally opened clamping mechanism, avoid the occurrence of electrodeless silk at normally opened clamping mechanism, there is the case where wire electrode to occur at normally closed clamping mechanism, production efficiency is improved, the fraction defective of product is reduced.
Description
Technical field
A kind of scarce silk judgment means of electric spark machine tool of the utility model belong to fine spray orifice electrical discharge machining neck
Domain.
Background technology
Metal electrode silk is generally chosen when electrical discharge machining micropore as tool-electrode.Electro-discharge machining is a fuzzy processing
Process, it is explicitly quantitative for the processing loss neither one of wire electrode, in current edm process, for wire electrode
Whether it is finished and needs replacing, is by detecting the interelectrode discharge voltage variation at the electrode and workpiece at normally closed clamping mechanism
Come what is judged.
There is such a situation there are a drawback in such judgment method：If electrodeless at normally opened clamping mechanism
Thread, there is wire electrode at normally closed clamping mechanism, can also detect that voltage becomes 0V from 10V at normally closed clamping mechanism, but due to giving
The operation principle of silk mechanism can cause such case that cannot be processed into silk compensation, and such micropore, which does not process, to be stopped,
Scrapping for workpieces processing is caused, fraction defective is increased.
Utility model content
The purpose of this utility model is to provide a kind of scarce silk judgment means of electric spark machine tool, for judging normally opened
Whether there is or not wire electrodes at clamping mechanism, improve production efficiency, reduce the fraction defective of product.
A kind of scarce silk judgment means of electric spark machine tool, motive spindle are mounted on guiderail base by guide rail slide block,
To realize that Z-direction moves, normally closed clamping mechanism is fixed on guide rail slide block and is 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 from top to bottom, further includes fortune
Dynamic control card, relay, the pulse power and motor driver, the motion control card by signal wire be separately connected 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 anode of knife detection module is electrically connected in structure and the pulse power, the normally closed clamping mechanism detects knife with the pulse power
The cathode of module is electrically connected, and the workpiece is electrically connected the anode of knife detection module with the pulse power, and the motor drives
Dynamic device is moved by Serve Motor Control motive spindle.
Preferably, the motion control card is PMAC motion control cards.
Advantageous effect：The utility model provides a kind of scarce silk judgment means of electric spark machine tool, logical with the prior art
It crosses and detects the method difference that the electrode at normally closed clamping mechanism changes to judge with the interelectrode discharge voltage at workpiece, pass through
It detects at normally opened clamping mechanism whether there is or not wire electrode, avoids the occurrence of electrodeless silk at normally opened clamping mechanism, have at normally closed clamping mechanism
The case where wire electrode, occurs, and improves production efficiency, reduces the fraction defective of product.
Description of the drawings
Fig. 1 is the overall structure figure of the utility model；
Fig. 2 is the scarce silk decision circuitry figure of the utility model；
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, after
Electric appliance 7.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
A kind of scarce silk judgment means of electric spark machine tool, motive spindle are mounted on guiderail base by guide rail slide block 2
3, to realize that Z-direction moves, 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,
Further 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 5,7 both ends of relay difference
The anode of knife detection module is electrically connected with normally opened clamping mechanism 4 and the pulse power, the normally closed clamping mechanism 5 and pulse
The cathode of knife detection module is electrically connected in power supply, workpiece 1 is electrically connected the anode of knife detection module with the pulse power,
The motor driver is moved by Serve Motor Control motive spindle.
Preferably, the motion control card is PMAC motion control cards.
The scarce silk judgment method of the utility model is as follows：
Step 1：Before processing, normally opened clamping mechanism 4 and normally closed clamping mechanism 5 are closed；
Step 2：Subsequent motion control card control relay is closed；If at this point, normally opened clamping mechanism and normally closed clamping mechanism
One or two of in there is no wire electrode, then the detection voltage to knife detection module inside the pulse power be 10V, if normally opened
There is wire electrode in clamping mechanism and normally closed clamping mechanism, then the detection voltage to knife detection module inside the pulse power is
The Voltage Feedback detected is then entered step 3 by 0V to motion control card；
Step 3：If the detection voltage to knife detection module of feedback is 10V, motion control card judges electrodeless silk, gives
Go out to stop the movement instruction of processing, sends out change electric wire alarm；If the detection voltage to knife detection module of feedback is
0V, then motion control card judge electrodeless silk, provide the movement instruction that can be processed, start normal process.
The operation principle of the utility model is as follows：
It is the overall structure figure of the utility model as shown in Figure 1, processes as follows into silk compensation principle：
Electronic wire loss compensation mechanism is made of a pair of electromagnetic type normally-closed and normally opened clamping mechanism, wherein normally closed wired
Mechanism 5 is fixed on 2 upper edge guiderail base 3Z of guide rail slide block to movement, and normally opened clamping mechanism 4 is fixed on guiderail base 3.
Under normal process state, normally opened and normally closed clamping mechanism is in normality, and normally closed clamping mechanism is driven into silk motor
Wire electrode is driven to complete servo feed movement, when wire electrode needs to process compensation, normally opened clamping mechanism is closed, while normally closed folder
Silk mechanism is unclamped, and the normally closed clamping mechanism fast fallback unclamped is driven into silk motor, and two clamping mechanisms are equal after completing predetermined stroke
Return to normal, realizes that the loss of wire electrode is compensated into silk
It is illustrated in figure 2 scarce silk judgment means circuit diagram
The scarce silk judgment method of the utility model is realized by the feedback voltage to knife detection module in the pulse power.
Before processing, normally opened clamping mechanism and normally closed clamping mechanism are all closed, and motion control card control relay is closed.If electrodeless
Silk, the anode and cathode of the pulse power form open circuit, then the detection voltage to knife detection module inside the pulse power is 10V,
By Voltage Feedback to motion control card, motion control card judges electrodeless silk, provides the movement instruction for stopping processing, sends out replacement
Wire electrode alarm；If there is wire electrode, anode and the cathode forming circuit of the pulse power, to the detection voltage of knife detection module
It is reduced to 0V, by Voltage Feedback to motion control card, motion control card judgement has wire electrode, provides the movement instruction that can be processed,
Start normal process.
The pulse power that the utility model uses and inside to knife detection module for conventional technical means, so do not add
It is described in detail.
The folding of normally opened clamping mechanism and normally closed clamping mechanism is by magnet control, motion control cartoon in the utility model
Cross control electromagnet on/off, to control the folding of normally opened clip and normally closed clip, belong to conventional technical means so
Not plus it is described in detail.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Two kinds of modifications of these embodiments will be apparent to those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (2)
1. a kind of scarce silk judgment means of electric spark machine tool, motive spindle is mounted on guiderail base by guide rail slide block, from
And realize that Z-direction moves, normally closed clamping mechanism is fixed on guide rail slide block and is 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, which is characterized in that
Further include motion control card, relay, the pulse power and motor driver, the motion control card is separately connected 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
It opens the anode in clamping mechanism and the pulse power to knife detection module to be electrically connected, in the normally closed clamping mechanism and the pulse power
The cathode of knife detection module is electrically connected, workpiece is electrically connected the anode of knife detection module with the pulse power, the electricity
Machine driver is moved by Serve Motor Control motive spindle.
2. a kind of scarce silk judgment means of electric spark machine tool according to claim 1, which is characterized in that the movement
Control card is PMAC motion control cards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721765604.0U CN208051083U (en) | 2017-12-18 | 2017-12-18 | A kind of scarce silk judgment means of electric spark machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721765604.0U CN208051083U (en) | 2017-12-18 | 2017-12-18 | A kind of scarce silk judgment means of electric spark machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208051083U true CN208051083U (en) | 2018-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721765604.0U Active CN208051083U (en) | 2017-12-18 | 2017-12-18 | A kind of scarce silk judgment means of electric spark machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208051083U (en) |
Cited By (2)
| 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 |
| 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 |
-
2017
- 2017-12-18 CN CN201721765604.0U patent/CN208051083U/en active Active
Cited By (2)
| 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 |
| 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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