CN104209609B - A kind of electric discharge machining apparatus control system - Google Patents
A kind of electric discharge machining apparatus control system Download PDFInfo
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- CN104209609B CN104209609B CN201410423419.8A CN201410423419A CN104209609B CN 104209609 B CN104209609 B CN 104209609B CN 201410423419 A CN201410423419 A CN 201410423419A CN 104209609 B CN104209609 B CN 104209609B
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- 229910052751 metal Inorganic materials 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
A kind of electric discharge machining apparatus control system, it comprises controller, electrical spark working foreman (10), lowering or hoisting gear (101), column (102), workbench (103), workpiece (105) and machining medium generator (104), wherein, lowering or hoisting gear (101) can move up and down along described column (102) thus be elevated described electrical spark working foreman (10), workbench (103) carries described machining medium generator (104), workpiece (105) is placed in the machining medium in described machining medium generator (104).
Description
Technical field
The present invention relates to electric spark machining field, particularly relate to a kind of electric discharge machining apparatus control system.
Background technology
The special process method of the galvanic action ablation conductive material that spark machined produces when being and utilizing the two interpolar pulsed discharge be immersed in working solution, also known as electric discharge processing or galvanic corrosion processing.
Carry out electrical spark working man-hour, tool-electrode and workpiece connect the two poles of the earth of the pulse power respectively, and immerse in working solution, or working solution is filled with discharging gap.By gap automatic controlling system tool-electrode to workpiece feeding, when two interelectrode gaps reach certain distance, working solution punctures by the pulse voltage that two electrodes apply, and produces spark discharge.Instantaneous concentrated a large amount of heat energy in the micro-channel of electric discharge, temperature can up to more than 10,000 degrees Celsius, pressure also has and sharply changes, thus make the metal material of this point working surface local trace melt at once, gasify, and explosion type be splashed in working solution, rapid condensation, forms the metal particle of solid, is taken away by working solution.At this moment just stay next small pit vestige on the surface of the workpiece, of short duration resting of discharging, between two electrodes, working solution recovers state of insulation.
And then, next pulse voltage punctures at another place that two electrodes are relatively close again, produces spark discharge, repeats said process.Like this, although the amount of metal of each pulsed discharge ablation is few, have thousands of subpulse discharge process because of per second, the metal that just energy ablation is more, has certain productivity ratio.Between retaining tool electrode and workpiece constant discharge gap condition under, ablation workpiece metal, while make tool-electrode constantly to workpiece feeding, finally just process the shape corresponding with tool-electrode shape come.Therefore, as long as change the shape of tool-electrode and the relative motion mode between tool-electrode and workpiece, the profile of various complexity can just be processed.
Tool-electrode commonly uses that electric conductivity is good, the material of resistance to galvanic corrosion of higher, the easy processing of fusing point, as copper, graphite, copper-tungsten and molybdenum etc.In process, tool-electrode is also lossy, but is less than the ablation amount of workpiece metal, even close to lossless.
Working solution, as discharge medium, also plays the effects such as cooling, chip removal in process.Conventional working solution is that viscosity is lower, flash-point is higher, the medium of stable performance, as kerosene, deionized water and emulsion etc.
According to tool-electrode form and and workpiece between the feature of relative motion, spark machined mode can be divided into five classes: utilize shaping jig electrode, opposite piece makes the sinking EDM of simple feed motion; Utilize the wire moved axially to make tool-electrode, workpiece makes orbiting motion by required form and size, to cut the Wire-cut Electrical Discharge Machining of conductive material; Utilize wire or shaped conductive emery wheel to make tool-electrode, carry out the electric spark grinding of aperture grinding or plunge grinding; For the electric spark conjugation revolution processing of machining screw ring gauge, plug thread gauge, gear etc.; The processing of other kinds such as little hole machined, marking, surface alloying, surface peening.
Spark machined can process material and the complex-shaped workpieces that conventional machining processes method is difficult to cutting; Add man-hour without cutting force; Do not produce the defect such as burr and tool marks rill; Tool-electrode material need not be harder than workpiece material; Direct use electric energy processing, is convenient to realize automation; Processing rear surface produces metamorphic layer, must remove further in some applications; The smog pollution process produced in the purification of working solution and processing is cumbersome.
Being mainly used in processing of spark machined has the nibs of complicated shape and the mould of die cavity and part; Process various hard, crisp material, as carbide alloy and hardened steel etc.; Process dark pore, irregularly-shaped hole, deep trouth, narrow slit and dicing sheet etc.; Process instrument and the measurers such as various forming tool, model and ring screw gauge.
For shaping workpiece electrode type, different piece poles is generally used for processing dissimilar die cavity.But for the workpiece of that cavity structure is had to combination, complicated structural requirement, need frequently to change shaping tool-electrode, cause that manufacturing process extends, technique is loaded down with trivial details and increase the shortcoming of cost.
Summary of the invention
The object of the invention is to according to above-mentioned defect, a kind of electric discharge machining apparatus control system is provided, it can easily change shaping tool-electrode, the quick-replaceable electrode when requiring for different structure, and can switch between single tool-electrode and two tool-electrode.
The scheme that the present invention adopts is: a kind of electric discharge machining apparatus control system, it comprises controller, electrical spark working foreman, lowering or hoisting gear, column, workbench, workpiece and machining medium generator, wherein, lowering or hoisting gear can move up and down along described column thus be elevated described electrical spark working foreman, workbench carries described machining medium generator, workpiece is placed in the machining medium in described machining medium generator
Described electrical spark working foreman comprises lower bearing bracket, upper spider and interior framework, and described upper spider is above described lower bearing bracket, and interior framework is positioned at the chamber be made up of lower bearing bracket and upper spider, and can slide up and down;
Wherein, upper inner and the upside of described interior framework of described upper spider are respectively arranged with the solenoid and magnet that are coupled, to drive the slip of interior framework; Two lower sidewall of described lower bearing bracket are provided with wedge surface alignment pin and lower wedge surface alignment pin symmetrically in each side wall, two side lower parts of interior framework are symmetrically arranged with upper and lower two cotter ways respectively accordingly, when interior framework is in upper working position state, upper wedge surface alignment pin coordinates with upper cotter way, lower wedge surface alignment pin and downside pin slot fit, when under the driving of interior framework in electromagnetic force during slide downward, enter lower working position state, now, lower wedge surface alignment pin coordinates with upper cotter way;
Described interior framework is provided with moving runner, and moving runner is hinged on described interior framework by the pivot at home position, and pivot connects with moving runner motor; The position that moving runner is relative in diametric(al) is hinged with the upper end of left connecting rod and right connecting rod respectively, the lower end of left connecting rod and right connecting rod respectively with the upper end thereof of left electrode rod member and right electrode rod member,
The bottom of described interior framework is respectively arranged with the left guide groove device of vertical direction and right guide groove device, be respectively used in the vertical direction to left electrode rod member and right electrode rod member guiding, the lower limb of described interior framework is provided with current delivery plate, current delivery plate is respectively arranged with the left power supply hole corresponding with left guide groove device and right guide groove device and right power supply hole, left power supply hole and right power supply hole are respectively used to pass for left electrode rod member and right electrode rod member, and with its electric connection and be that it is powered;
Described interior framework is also provided with two locking arc strips, described two locking arc strips are arranged on the both sides of moving runner symmetrically about the vertical diameter of moving runner, and the inner side cambered surface of described two locking arc strips coordinates rotationally with the periphery of moving runner, three groups of moving runner locking position pins are provided with: right electrode rod member stretches out status lock rationed marketing group, two electrode stems reclaim status lock rationed marketing group and left electrode rod member stretches out status lock rationed marketing group in described two locking arc strips
Right electrode rod member stretches out status lock rationed marketing group, two electrode stems reclaim status lock rationed marketing group and include at two diametrically relative stop pins with each stop pin group that left electrode rod member stretches out in status lock rationed marketing group, moving runner to be provided with at diametrically relative pair of locking pin-and-hole for coordinating with corresponding two described relative stop pins under different conditions respectively: when moving runner rotate into right electrode rod member is stretched out time, two stop pins that described pair of locking pin-and-hole on moving runner and right electrode rod member stretch out status lock rationed marketing group coordinate, when moving runner rotate into left electrode rod member is stretched out time, two stop pins that described pair of locking pin-and-hole on moving runner and left electrode rod member stretch out status lock rationed marketing group coordinate, when moving runner rotate into left electrode stem and right electrode rod member are all reclaimed time, two stop pins that described pair of locking pin-and-hole on moving runner and two electrode stems reclaim status lock rationed marketing group coordinate, now, described pair of locking pin-and-hole on moving runner in the horizontal direction diametrically relative, and the processing head of left electrode stem and right electrode rod member all stretches out in described current delivery plate,
Each described stop pin in described two locking arc strips all can controllably stretch out and retraction;
Wherein, described left electrode rod member and right electrode rod member are respectively used to process difform structure, when described solenoid make described interior framework be in described on working position state: when stretching out respectively at described left electrode rod member and right electrode rod member, it is in order to process difform structure respectively, when described left electrode rod member and right electrode rod member are all retracted, the processing head of described left electrode rod member and right electrode rod member is in above the lower limb of described lower bearing bracket, thus avoid processing head contact workpiece, described electrical spark working foreman is made to be in non-machining state thus, when described solenoid makes described interior framework be in described lower working position state: the processing head of left electrode rod member and right electrode rod member is all exposed to the lower limb of described lower bearing bracket, thus can carry out processing difform structure simultaneously,
Wherein, each described stop pin in described two locking arc strips is all arranged in installing hole, and be connected with the outer end of flexible member, the inner of flexible member is connected with electromagnetic actuator device, each described stop pin is irony, and each described stop pin can be retracted in described installing hole and be stretched out from described installing hole under the drived control of electromagnetic actuator device thus;
Described controller is communicated with described electromagnetic actuator device, described solenoid, lowering or hoisting gear and described moving runner motor signal, for controlling the action of described electromagnetic actuator device, described solenoid, lowering or hoisting gear and described moving runner motor.
By such scheme, two, left and right tool-electrode bar can alternate application in workpiece, without the need to frequently changing tool-electrode; And, when can apply the tool-electrode of two kinds of shapes simultaneously, two tool-electrodes can be made to be applied to piece pole by ejecting mechanism simultaneously, make full use of electrode resource thus, improve working (machining) efficiency.And, in each machining state, opposed stop pin is all used to carry out locking position, make process electrode firmly stressed, in the handoff procedure of lower work position state, use calutron to carry out, handoff procedure is quick, and coordinate with elastic locking device, after snap lock rationed marketing coordinates with lock slots, its electromagnetic force size can be adjusted to does not destroy this lock-out state; When needs unlock state, only need to control to strengthen electromagnetic force.
Accompanying drawing explanation
Fig. 1 is that processing head of the present invention rotates into structure chart when left electrode stem and right electrode rod member are all reclaimed at moving runner;
Fig. 2 is that processing head of the present invention is rotating into structure chart when left electrode rod member is stretched out when moving runner;
Fig. 3 is that processing head of the present invention is rotating into structure chart when right electrode rod member is stretched out when moving runner;
Fig. 4 each stop pin of the present invention stretch out retraction structure schematic diagram;
Fig. 5 is the overall structure schematic diagram of electric discharge machining apparatus;
Fig. 6 is the control structure figure of control system of the present invention.
Detailed description of the invention
Referring to Fig. 1-6, describe the present invention.
A kind of electric discharge machining apparatus control system, it comprises controller, electrical spark working foreman 10, lowering or hoisting gear 101, column 102, workbench 103, workpiece 105 and machining medium generator 104, wherein, lowering or hoisting gear 101 can move up and down along described column 102 thus be elevated described electrical spark working foreman 10, workbench 103 carries described machining medium generator 104, workpiece 105 is placed in the machining medium in described machining medium generator 104
Described electrical spark working foreman 10 comprises lower bearing bracket 3, upper spider 6 and interior framework 1, and described upper spider 6 is above described lower bearing bracket 3, and interior framework 1 is positioned at the chamber be made up of lower bearing bracket 3 and upper spider 6, and can slide up and down;
Wherein, upper inner and the upside of described interior framework 1 of described upper spider 6 are respectively arranged with the solenoid 62 and magnet 63 that are coupled, to drive the slip of interior framework 1; Two lower sidewall of described lower bearing bracket are provided with wedge surface alignment pin 31 and lower wedge surface alignment pin 32 symmetrically in each side wall, two side lower parts of interior framework 1 are symmetrically arranged with upper and lower two cotter ways respectively accordingly, when interior framework 1 is in upper working position state, upper wedge surface alignment pin 31 coordinates with upper cotter way, lower wedge surface alignment pin 32 and downside pin slot fit, when under the driving of interior framework 1 in electromagnetic force during slide downward, enter lower working position state, now, lower wedge surface alignment pin 32 coordinates with upper cotter way;
Described interior framework 1 is provided with moving runner 2, and moving runner 2 is hinged on described interior framework 1 by the pivot 21 at home position, and pivot 21 connects with moving runner motor; The position that moving runner 2 is relative in diametric(al) is hinged with the upper end of left connecting rod 42 and right connecting rod 52 respectively, the lower end of left connecting rod 42 and right connecting rod 52 respectively with the upper end thereof of left electrode rod member 4 and right electrode rod member 5,
The bottom of described interior framework 1 is respectively arranged with left guide groove device 41 and the right guide groove device 51 of vertical direction, be respectively used in the vertical direction lead to left electrode rod member 4 and right electrode rod member 5, the lower limb of described interior framework 1 is provided with current delivery plate 7, current delivery plate 7 is respectively arranged with the left power supply hole corresponding with left guide groove device 41 and right guide groove device 51 and right power supply hole, left power supply hole and right power supply hole are respectively used to pass for left electrode rod member 4 and right electrode rod member 5, and with its electric connection and be that it is powered;
Described interior framework 1 is also provided with two locking arc strips 8, described two locking arc strips 8 are arranged on the both sides of moving runner 2 symmetrically about the vertical diameter of moving runner 2, and the inner side cambered surface of described two locking arc strips 8 coordinates rotationally with the periphery of moving runner 2, three groups of moving runner locking position pins are provided with: right electrode rod member stretches out status lock rationed marketing group 81, two electrode stem recovery status lock rationed marketing group 82 and left electrode rod member stretches out status lock rationed marketing group 83 in described two locking arc strips 8
Right electrode rod member stretches out status lock rationed marketing group 81, two electrode stems reclaim status lock rationed marketing group 82 and include at two diametrically relative stop pins with each stop pin group that left electrode rod member stretches out in status lock rationed marketing group 83, moving runner 2 to be provided with at diametrically relative pair of locking pin-and-hole 22 for coordinating with corresponding two described relative stop pins under different conditions respectively: when moving runner 2 rotate into right electrode rod member is stretched out as Fig. 3 time, two stop pins that described pair of locking pin-and-hole 22 on moving runner 2 and right electrode rod member stretch out status lock rationed marketing group 81 coordinate, when moving runner 2 rotate into left electrode rod member is stretched out as Fig. 2 time, two stop pins that described pair of locking pin-and-hole 22 on moving runner 2 and left electrode rod member stretch out status lock rationed marketing group 81 coordinate, when moving runner 2 rotate into left electrode stem and right electrode rod member are all reclaimed time as Fig. 1, two stop pins that described pair of locking pin-and-hole 22 on moving runner 2 and two electrode stems reclaim status lock rationed marketing group 82 coordinate, now, described pair of locking pin-and-hole 22 on moving runner 2 in the horizontal direction diametrically relative, and the processing head of left electrode stem and right electrode rod member all stretches out in described current delivery plate 7,
Each described stop pin 9 in described two locking arc strips 8 all can controllably stretch out and retraction;
Wherein, described left electrode rod member 4 and right electrode rod member 5 are respectively used to process difform structure, when described solenoid 62 make described interior framework be in described on working position state: when stretching out respectively at described left electrode rod member 4 and right electrode rod member 5, it is in order to process difform structure respectively, when described left electrode rod member 4 and right electrode rod member 5 are all retracted, the processing head of described left electrode rod member 4 and right electrode rod member 5 is in above the lower limb of described lower bearing bracket 3, thus avoid processing head contact workpiece, described electrical spark working foreman is made to be in non-machining state thus, when described solenoid 62 makes described interior framework be in described lower working position state: the processing head of left electrode rod member 4 and right electrode rod member 5 is all exposed to the lower limb of described lower bearing bracket 3, thus can carry out processing difform structure simultaneously,
Wherein, each described stop pin 9 in described two locking arc strips 8 is all arranged in installing hole, and be connected with the outer end of flexible member 91, the inner of flexible member 91 is connected with electromagnetic actuator device 92, each described stop pin 9 is irony, and each described stop pin 9 can be retracted in described installing hole and be stretched out from described installing hole under the drived control of electromagnetic actuator device 92 thus;
Described controller is communicated with described electromagnetic actuator device 92, described solenoid 62, lowering or hoisting gear and described moving runner motor signal, for controlling the action of described electromagnetic actuator device 92, described solenoid 62, lowering or hoisting gear and described moving runner motor.
Claims (1)
1. an electric discharge machining apparatus control system, it comprises controller, electrical spark working foreman (10), lowering or hoisting gear (101), column (102), workbench (103), workpiece (105) and machining medium generator (104), wherein, lowering or hoisting gear (101) can move up and down along described column (102) thus be elevated described electrical spark working foreman (10), workbench (103) carries described machining medium generator (104), workpiece (105) is placed in the machining medium in described machining medium generator (104)
Described electrical spark working foreman (10) comprises lower bearing bracket (3), upper spider (6) and interior framework (1), described upper spider (6) is in the top of described lower bearing bracket (3), interior framework (1) is positioned at the chamber be made up of lower bearing bracket (3) and upper spider (6), and can slide up and down;
Wherein, upper inner and the upside of described interior framework (1) of described upper spider (6) are respectively arranged with the solenoid (62) and magnet (63) that are coupled, to drive the slip of interior framework (1); Two lower sidewall of described lower bearing bracket are provided with wedge surface alignment pin (31) and lower wedge surface alignment pin (32) symmetrically in each side wall, two side lower parts of interior framework (1) are symmetrically arranged with upper and lower two cotter ways respectively accordingly, when interior framework (1) is in upper working position state, upper wedge surface alignment pin (31) coordinates with upper cotter way, lower wedge surface alignment pin (32) and downside pin slot fit, when under the driving of interior framework (1) in electromagnetic force during slide downward, enter lower working position state, now, lower wedge surface alignment pin (32) coordinates with upper cotter way;
Described interior framework (1) is provided with moving runner (2), moving runner (2) is hinged on described interior framework (1) by the pivot (21) at home position, and pivot (21) connects with moving runner motor; The position that moving runner (2) is relative in diametric(al) is hinged with the upper end of left connecting rod (42) and right connecting rod (52) respectively, the lower end of left connecting rod (42) and right connecting rod (52) respectively with the upper end thereof of left electrode rod member (4) and right electrode rod member (5)
The bottom of described interior framework (1) is respectively arranged with left guide groove device (41) and the right guide groove device (51) of vertical direction, be respectively used in the vertical direction to left electrode rod member (4) and right electrode rod member (5) guiding, the lower limb of described interior framework (1) is provided with current delivery plate (7), current delivery plate (7) is respectively arranged with the left power supply hole corresponding with left guide groove device (41) and right guide groove device (51) and right power supply hole, left power supply hole and right power supply hole are respectively used to pass for left electrode rod member (4) and right electrode rod member (5), and be that it is powered with its electric connection,
Described interior framework (1) is also provided with two lockings arc strip (8), described two lockings arc strip (8) are arranged on the both sides of moving runner (2) symmetrically about the vertical diameter of moving runner (2), and the inner side cambered surface of described two lockings arc strip (8) coordinates rotationally with the periphery of moving runner (2), three groups of moving runner locking position pins are provided with: right electrode rod member stretches out status lock rationed marketing group (81), two electrode stems reclaim status lock rationed marketing group (82) and left electrode rod member stretches out status lock rationed marketing group (83) in described two lockings arc strip (8)
Right electrode rod member stretches out status lock rationed marketing group (81), two electrode stems reclaim status lock rationed marketing group (82) and include at two diametrically relative stop pins with each stop pin group that left electrode rod member stretches out in status lock rationed marketing group (83), moving runner (2) to be provided with at diametrically relative pair of locking pin-and-hole (22) for coordinating with corresponding two described relative stop pins under different conditions respectively: when moving runner (2) rotate into right electrode rod member is stretched out time, two stop pins that described pair of locking pin-and-hole (22) on moving runner (2) and right electrode rod member stretch out status lock rationed marketing group (81) coordinate, when moving runner (2) rotate into left electrode rod member is stretched out time, two stop pins that described pair of locking pin-and-hole (22) on moving runner (2) and left electrode rod member stretch out status lock rationed marketing group (81) coordinate, when moving runner (2) rotate into left electrode stem and right electrode rod member are all reclaimed time, two stop pins that described pair of locking pin-and-hole (22) on moving runner (2) and two electrode stems reclaim status lock rationed marketing group (82) coordinate, now, described pair of locking pin-and-hole (22) on moving runner (2) in the horizontal direction diametrically relative, and the processing head of left electrode stem and right electrode rod member all stretches out in described current delivery plate (7),
Each described stop pin (9) in described two lockings arc strip (8) all can controllably stretch out and retraction;
Wherein, described left electrode rod member (4) and right electrode rod member (5) are respectively used to process difform structure, when described solenoid (62) makes described interior framework be in described upper working position state: when described left electrode rod member (4) and right electrode rod member (5) are stretched out respectively, it is in order to process difform structure respectively, when described left electrode rod member (4) and right electrode rod member (5) are all retracted, the processing head of described left electrode rod member (4) and right electrode rod member (5) is in above the lower limb of described lower bearing bracket (3), thus avoid processing head contact workpiece, described electrical spark working foreman is made to be in non-machining state thus, when described solenoid (62) makes described interior framework be in described lower working position state: the processing head of left electrode rod member (4) and right electrode rod member (5) is all exposed to the lower limb of described lower bearing bracket (3), thus can carry out processing difform structure simultaneously,
Wherein, each described stop pin (9) in described two lockings arc strip (8) is all arranged in installing hole, and be connected with the outer end of flexible member (91), the inner of flexible member (91) is connected with electromagnetic actuator device (92), each described stop pin (9) is irony, thus each described stop pin (9) can retract under the drived control of electromagnetic actuator device (92) described installing hole neutralization stretch out from described installing hole;
Described controller is communicated with described electromagnetic actuator device (92), described solenoid (62), lowering or hoisting gear and described moving runner motor signal, for controlling the action of described electromagnetic actuator device (92), described solenoid (62), lowering or hoisting gear and described moving runner motor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410423419.8A CN104209609B (en) | 2014-08-26 | 2014-08-26 | A kind of electric discharge machining apparatus control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410423419.8A CN104209609B (en) | 2014-08-26 | 2014-08-26 | A kind of electric discharge machining apparatus control system |
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| CN104209609A CN104209609A (en) | 2014-12-17 |
| CN104209609B true CN104209609B (en) | 2016-01-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62213923A (en) * | 1986-03-14 | 1987-09-19 | Hitachi Seiko Ltd | Wire-cut electric spark machine |
| CN2413832Y (en) * | 2000-03-20 | 2001-01-10 | 苏州中特机电科技有限公司 | Digital driving mechanism for high speed electric spark small hole working equipment |
| JP2001204167A (en) * | 2000-01-17 | 2001-07-27 | Sodick Co Ltd | Driver and discharge processor utilizing linear motor |
| CN200939534Y (en) * | 2006-08-15 | 2007-08-29 | 上海大量电子设备有限公司 | Wire cut electric discharge machine with high/low speed wire feeding |
| CN201505776U (en) * | 2009-09-25 | 2010-06-16 | 江苏三星机械制造有限公司 | Portable electric spark wire cutting machine |
-
2014
- 2014-08-26 CN CN201410423419.8A patent/CN104209609B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62213923A (en) * | 1986-03-14 | 1987-09-19 | Hitachi Seiko Ltd | Wire-cut electric spark machine |
| JP2001204167A (en) * | 2000-01-17 | 2001-07-27 | Sodick Co Ltd | Driver and discharge processor utilizing linear motor |
| CN2413832Y (en) * | 2000-03-20 | 2001-01-10 | 苏州中特机电科技有限公司 | Digital driving mechanism for high speed electric spark small hole working equipment |
| CN200939534Y (en) * | 2006-08-15 | 2007-08-29 | 上海大量电子设备有限公司 | Wire cut electric discharge machine with high/low speed wire feeding |
| CN201505776U (en) * | 2009-09-25 | 2010-06-16 | 江苏三星机械制造有限公司 | Portable electric spark wire cutting machine |
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| CN104209609A (en) | 2014-12-17 |
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