CN1654147A - Method for realizing electricity single generating and discharging utilizing electrodischarge machining equipment - Google Patents
Method for realizing electricity single generating and discharging utilizing electrodischarge machining equipment Download PDFInfo
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- CN1654147A CN1654147A CN 200510024027 CN200510024027A CN1654147A CN 1654147 A CN1654147 A CN 1654147A CN 200510024027 CN200510024027 CN 200510024027 CN 200510024027 A CN200510024027 A CN 200510024027A CN 1654147 A CN1654147 A CN 1654147A
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Abstract
The present invention is single shot discharge method in discharging machining apparatus and belongs to special machining. The displacement direction for the electrode to approach the workpiece is set as Z direction and the discharge trace producing plane as the XY plane. The single shot discharge process includes the following steps: installing the electrode in the main shaft, fixing the workpiece on the bench, making the electrode contact with the workpiece and setting the contact point as origin of X=Y=Z=0 and setting automatic main shaft retracting to Z=1 mm on finishing machining; setting great machining pulse interval and raising the cutter in Z direction after finishing machining; shifting the main shaft in X or Y direction for n mm or nx10 mm before machining to origin; making electrode approach to the workpiece surface gradually to obtain complete single shot discharge trace; and complete n times discharge to complete the machining.
Description
Technical field
The present invention relates to a kind of method of single-shot discharge, particularly a kind of method of utilizing discharging processing machine to realize the single-shot discharge.Belong to special process field.
Background technology
Discharge processing is the electric discharge phenomena of utilizing distance generation close to a certain extent between tool-electrode and the piece pole, under the effect of pulse feature discharge with workpiece on a kind of electric processing method of removing of excess stock.Hence one can see that realizes that the key of processing is each pulse feature discharge, i.e. processing tasks is finished in many single-shot discharges.When research discharge process, processing mechanism, often can use the single-shot discharge, by investigating the size of complete single-shot discharge trace (hole), transfer the quality of electric machining characteristic to compare different condition.Therefore realize the single-shot discharge, obtain complete single-shot discharge trace, in the exploitation of the theoretical research of discharge processing and process technology, have a very important role.At present, realize the comparatively complicated and trouble of method that single-shot discharges at discharging processing machine, in order to realize the single-shot discharge, need the control mode of change discharging processing machine, namely discharging processing machine is suitably reequiped or added the mono pulse control circuit.Owing to do not have ready-made single-shot charge/discharge control circuit or integrated circuit board to sell, many research workers oneself design and produce a cover single-shot pulse control circuit.
Find through literature search prior art, Zhao Wei is (doctorate paper in its doctorate thesis-" research of electrode ablation and basic theory thereof in the spark machined ", publishing house of Northwestern Polytechnical University publishes, in January, 2003) discussed single-shot discharge method of production, this method is designing realization single-shot discharge on the control circuit basis voluntarily.This method needs design circuit, buying components and parts, makes control circuit, cost is higher, and need certain fabrication cycle, problems such as it is unstable or undesirable with former discharging processing machine coupling meanwhile to run into designed control circuit toward the contact meeting, and the discharge trace that obtains when practical operation is often also unsatisfactory.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of method of utilizing discharging processing machine to realize the single-shot discharge is provided.Make its utilize spindle processing can be automatically after desired location the function of cutter lifting (moving up) immediately, after first pulsed discharge, under the effect of discharging processing machine control circuit, main shaft did not lift before second pulse also arrived, thereby realized the single-shot discharge.
The present invention is achieved by the following technical solutions, and step of the present invention is as follows: electrode is the Z direction near the direction of displacement of workpiece, and the plane that produces the discharge trace is the XY plane, and performing step is as follows
Suppose in rectangular coordinate system that (1) major axes orientation of discharge processing is the vertical Z axle, level is X, Y both direction, and in main shaft, workpiece is installed and is positioned in the workbench and clamping with electrode fixing; Make electrode contact perception with workpiece, the setting contact point is zero point, i.e. the main shaft automatic rollback is to Z=1 millimeter place after X=Y=Z=0, and the setting completion of processing;
(2) set the processing pulse spacing, cutter lifting immediately after the completion of processing, the cutter lifting direction is the Z direction;
(3) with several millimeters or tens millimeters of main shaft along continuous straight runs X or Y translations, on this basis, make electrode drop to Z/2 by original Z=1mm position, i.e. Z
1=0.5 millimeter position, and make the main shaft along continuous straight runs be machined to X=0 or Y=0 position, main shaft is retracted into Z=1 millimeter position automatically after the completion of processing;
(4) complete single-shot discharge trace occurs when surface of the work, then process finishes; When not producing discharge or non-when discharging fully, then repeating step (3) drops to Z/2 with main shaft then
2, along continuous straight runs is machined to X=0 or Y=0 position again, if surface of the work has the complete discharge trace, then process finishes; If still not discharge or complete discharge trace, repeating step (3) again then, drop to Z/2 with main shaft this moment
3, continue to make the main shaft along continuous straight runs to be machined to X=0 or Y=0 position;
Complete discharge processing trace appears in surface of the work when the n time discharge, and then process finishes, and in the n time man-hour of discharging or add, the distance that main shaft descends should be Z/2
n
Electrode is a directions X near the direction of displacement of workpiece, and the plane that produces the discharge trace is the YZ plane, and performing step is as follows:
Suppose in rectangular coordinate system that (1) vertical direction is Z axis, level is X, Y both direction, and in main shaft, workpiece is installed and is positioned in the workbench and clamping with electrode fixing; Make electrode contact perception with workpiece, the setting contact point is zero point, i.e. the main shaft automatic rollback is to the X=1mm place after X=Y=Z=0, and the setting completion of processing;
(2) set the processing pulse spacing, cutter lifting immediately after the completion of processing, the cutter lifting direction is a directions X;
(3) with electrode along several millimeters or tens millimeters of Z or Y-direction translations, on this basis, make electrode move to X/2 by original X=1mm position along directions X, i.e. X
1=0.5 millimeter position makes main shaft be machined to Z=0 or Y=0 position along Z direction or Y-direction then, and main shaft is retracted into X=1 millimeter position automatically after the completion of processing;
(4) complete single-shot discharge trace occurs when surface of the work, then process finishes; When not producing discharge or non-when discharging fully, then repeating step (3) drops to X/2 with main shaft then
2, this moment, X=1 was machined to Z=0 or Y=0 position along Z direction or Y-direction again, if surface of the work has the complete discharge trace, then process finishes; If still not discharge or complete discharge trace, repeating step (3) again then, move to X/2 with the main shaft electrode this moment
3, continue to make main shaft to be machined to Z=0 or Y=position along Z direction or Y-direction direction;
When the n time when discharge surface of the work complete discharge processing trace appears, then process finishes, and discharges for the n time or adds man-hour, the distance that the main shaft electrode moves should be X/2
n
Electrode is the Y direction near the direction of displacement of workpiece, and the plane that the discharge trace produces is the XZ plane, and performing step is as follows:
Suppose in rectangular coordinate system that (1) major axes orientation of discharge processing is Z axis, level is X, Y both direction, and in main shaft, workpiece is installed and is positioned in the workbench and clamping with electrode fixing; Make electrode contact perception with workpiece, the setting contact point is zero point, and namely X=Y=Z=0 moves to Y=1mm with electrode then, and after setting completion of processing the main shaft automatic rollback to Y=1 millimeter place;
(2) set the processing pulse spacing, cutter lifting immediately after the completion of processing, the cutter lifting direction is the Y direction;
(3) with the main shaft electrode along several millimeters or tens millimeters of direction X or Z translations, on this basis, main shaft is moved to Y/2, i.e. Y
1=0.5 millimeter position, and make main shaft be machined to X=0 or Z=0 position along directions X, main shaft is retracted into Y=1 millimeter position automatically after the completion of processing;
(4) complete single-shot discharge trace occurs when surface of the work, then process finishes; When not producing discharge or non-when discharging fully, then repeating step (3) moves to Y/2 with main shaft then
2, again be machined to X=0 or Z=0 position along directions X, if surface of the work has the complete discharge trace, then process finishes; If still not discharge or complete discharge trace, repeating step (3) again then, move to Y/2 with main shaft this moment
3, continue to make main shaft to be machined to X=0 (or Z=0) position along directions X;
Complete discharge processing trace appears in surface of the work when the n time discharge, and then process finishes, and the distance of main axle moving should be Y/2 during the n time discharge
n
Key of the present invention is: guarantee that 1) the main shaft electrode must be shorter and smaller than the interpulse period in the time that machine direction moves, so just can be under the control of former discharging processing machine control power supply, and the motion of assurance time processing only has a pulse to produce; 2) suitably adjust distance between electrode and the workpiece to guarantee to produce complete single-shot discharge trace.
Advantage of the present invention is: under not by any instrument, equipment or condition that discharging processing machine control circuit (comprising power supply) is reequiped, transformed, make full use of the processing characteristics of discharging processing machine own level (or vertical) direction, realize the single-shot discharge; This method is economical and practical, and is easy to be reliable, workable, and time and labour saving (with designing and producing circuit and comparing) is applicable to any discharging processing machine, to the effect that discharge working research personnel explore and research processing mechanism and processing technology have particular importance.
Description of drawings
Two photos under Fig. 1 different focal
The specific embodiment
Content in conjunction with the inventive method provides following examples
1), preparation: workpiece material: Cr12 (40 * 30 * 8), electrode material: red copper, size: Φ 10 * 50, discharging processing machine is that Switzerland produces: Xia Mier ROBFORM35, electrode is contained in the main shaft, and workpiece is installed on the workbench, sets: discharge current=64A; Burst length=100 μ s; Pulse spacing=3000 μ s; Open voltage=200V; After time processing finishes; Main shaft is raised up to the Z=0.8 millimeter automatically;
2), electrode is contacted with surface of the work, set the coordinate Z=X=Y=0 of this contact point;
3) (X=20, Y=0 Z=0.8) locate, electrode main shaft manual water to be moved to coordinate;
4), (X=20, Y=0 Z=0.8) are machined to coordinate (X=0, Y=0, Z=0.8) some place along X-direction by coordinate;
5), do not locate owing to having discharge, use manually main shaft to be moved to (X=20, Y=0, Z=0.4);
6), (X=20, Y=0 Z=0.4) are machined to along X-direction that (Z=0.4) does not still put a little at the some place for X=0, Y=0 by point;
7), when the electrode main shaft by (Z=0.1) coordinate is machined to that (Z=0.1) coordinate time has obtained complete single-shot discharge processing trace (seeing accompanying drawing) for X=0, Y=0 for X=20, Y=0.
Procedure: 1:FROM/X, 30, Z, 0.1 (present position of expression electrode)
2:VECT/X, 0 VECT/Z, 0.1; (wherein VECT is the processing order. its implication is:
Be machined to coordinate X=0 from electrode coordinate position of living in along X-direction, the Z=0.1 place)
3:GOTO/Z, 1 (carry out 2 rear motors and get back to the Z=1mm position)
4:END (procedure end)
As shown in Figure 1, left figure is the edge part photo of discharge trace, and right figure is the bottom photo of discharge trace, and the discharge trace is substantially rounded, and the edge is projection slightly, and there is obvious recess the centre, so this is a complete single-shot discharge trace.
The present invention makes full use of the processing characteristics of discharging processing machine self along change in coordinate axis direction, thereby realizes the single-shot discharge under not by any instrument, equipment or condition that discharging processing machine control circuit (comprising power supply) is reequiped, transformed.
Claims (3)
1, a kind of method of utilizing discharging processing machine to realize the single-shot discharge, it is characterized in that: electrode is the Z direction near the direction of displacement of workpiece, and the plane that produces the discharge trace is the XY plane, and performing step is as follows
(1) supposes in rectangular coordinate system, the major axes orientation of discharge processing is the vertical Z axle, level is X, Y both direction, electrode is installed in the main shaft, workpiece is installed and is positioned in the workbench and clamping, makes electrode contact perception with workpiece, and the setting contact point is zero point, be X=Y=Z=0, and after setting completion of processing the main shaft automatic rollback to Z=1 millimeter place;
(2) set the processing pulse spacing, cutter lifting immediately after the completion of processing, the cutter lifting direction is the Z direction;
(3) with several millimeters or tens millimeters of main shaft along continuous straight runs X or Y translations, on this basis, make electrode drop to Z/2 by original Z=1mm position, i.e. Z
1=0.5 millimeter position, and make the main shaft along continuous straight runs be machined to X=0 or Y=0 position, main shaft is retracted into Z=1 millimeter position automatically after the completion of processing;
(4) complete single-shot discharge trace occurs when surface of the work, then process finishes; When not producing discharge or non-when discharging fully, then repeating step (3) drops to Z/2 with main shaft then
2, along continuous straight runs is machined to X=0 or Y=0 position again, if surface of the work has the complete discharge trace, then process finishes; If still not discharge or complete discharge trace, repeating step (3) again then, drop to Z/2 with main shaft this moment
3, continue to make the main shaft along continuous straight runs to be machined to X=0 or Y=0 position;
Complete discharge processing trace appears in surface of the work when the n time discharge, and then process finishes, and in the n time man-hour of discharging or add, the distance that main shaft descends should be Z/2
n
2, the method for utilizing discharging processing machine to realize the single-shot discharge according to claim 1 is characterized in that electrode is a directions X near the direction of displacement of workpiece, and the plane that produces the discharge trace is the YZ plane, and performing step is as follows:
(1) supposes in rectangular coordinate system, vertical direction is the Z axle, level is X, Y both direction, electrode is installed in the main shaft, workpiece is installed and is positioned in the workbench and clamping, makes electrode contact perception with workpiece, and the setting contact point is zero point, be X=Y=Z=0, and after setting completion of processing the main shaft automatic rollback to the X=1mm place;
(2) set the processing pulse spacing, cutter lifting immediately after the completion of processing, the cutter lifting direction is a directions X;
(3) with electrode along several millimeters or tens millimeters of Z or Y-direction translations, on this basis, make electrode move to X/2 by original X=1mm position along directions X, i.e. X
1=0.5 millimeter position makes main shaft be machined to Z=0 or Y=0 position along Z direction or Y-direction then, and main shaft is retracted into X=1 millimeter position automatically after the completion of processing;
(4) complete single-shot discharge trace occurs when surface of the work, then process finishes; When not producing discharge or non-when discharging fully, then repeating step (3) drops to X/2 with main shaft then
2, this moment, X=1 was machined to Z=0 or Y=0 position along Z direction or Y-direction again, if surface of the work has the complete discharge trace, then process finishes, if still not discharge or complete discharge trace, repeating step (3) again then, move to X/2 with the main shaft electrode this moment
3, continue to make main shaft to be machined to Z=0 or Y=position along Z direction or Y-direction direction;
When the n time when discharge surface of the work complete discharge processing trace appears, then process finishes, and discharges for the n time or adds man-hour, the distance that the main shaft electrode moves should be X/2
n
3, the method for utilizing discharging processing machine to realize the single-shot discharge according to claim 1 is characterized in that electrode is the Y direction near the direction of displacement of workpiece, and the plane that the discharge trace produces is the XZ plane, and performing step is as follows
Suppose in rectangular coordinate system that (1) major axes orientation of discharge processing is Z axis, level is X, Y both direction, and in main shaft, workpiece is installed and is positioned in the workbench and clamping with electrode fixing; Make electrode contact perception with workpiece, the setting contact point is zero point, and namely X=Y=Z=0 moves to Y=1mm with electrode then, and after setting completion of processing the main shaft automatic rollback to Y=1 millimeter place;
(2) set the processing pulse spacing, cutter lifting immediately after the completion of processing, the cutter lifting direction is the Y direction;
(3) with the main shaft electrode along several millimeters or tens millimeters of direction X or Z translations, on this basis, main shaft is moved to Y/2, i.e. Y
1=0.5 millimeter position, and make main shaft be machined to X=0 or Z=0 position along directions X, main shaft is retracted into Y=1 millimeter position automatically after the completion of processing;
(4) complete single-shot discharge trace occurs when surface of the work, then process finishes; When not producing discharge or non-when discharging fully, then repeating step (3) moves to Y/2 with main shaft then
2, again be machined to X=0 or Z=0 position along directions X, if surface of the work has the complete discharge trace, then process finishes, if still not discharge or complete discharge trace, repeating step (3) again then, move to Y/2 with main shaft this moment
3, continue to make main shaft to be machined to X=0 (or Z=0) position along directions X;
Complete discharge processing trace appears in surface of the work when the n time discharge, and then process finishes, and the distance of main axle moving should be Y/2 during the n time discharge
n
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| CNB2005100240275A CN100372641C (en) | 2005-02-24 | 2005-02-24 | Method for realizing electricity single generating and discharging utilizing electrodischarge machining equipment |
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| CNB2005100240275A CN100372641C (en) | 2005-02-24 | 2005-02-24 | Method for realizing electricity single generating and discharging utilizing electrodischarge machining equipment |
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| JP3567619B2 (en) * | 1996-06-19 | 2004-09-22 | 三菱電機株式会社 | Electric discharge machine and method |
| JP3323457B2 (en) * | 1999-06-01 | 2002-09-09 | 株式会社ソディック | Electric discharge machining method and power supply device for electric discharge machining |
| JP2002331426A (en) * | 2001-05-08 | 2002-11-19 | Elenix Inc | Depth designating machining method in thin hole electric discharge machine and thin hole electric discharge machine having depth designating machining means |
| JP4219569B2 (en) * | 2001-04-12 | 2009-02-04 | 株式会社エレニックス | Small hole electric discharge machine |
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Granted publication date: 20080305 Termination date: 20110224 |