CN103143797B - Isolating device of slot discharge machine tool - Google Patents
Isolating device of slot discharge machine tool Download PDFInfo
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- CN103143797B CN103143797B CN201110402215.2A CN201110402215A CN103143797B CN 103143797 B CN103143797 B CN 103143797B CN 201110402215 A CN201110402215 A CN 201110402215A CN 103143797 B CN103143797 B CN 103143797B
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- barrier means
- groove
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
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Abstract
The invention discloses an isolating device of a slot discharge machine tool. The isolating device comprises an insulating waterproof assembly and an insulating cover body. The insulating waterproof assembly is electrically insulated from a current circuit assembly and isolates the current circuit assembly from working fluid. The insulating cover body prevents the working fluid from entering into the insulating cover body because the internal air pressure of the insulating cover body is higher than the pressure of external liquid, so that the current circuit assembly including contacts in the insulating cover body is isolated from the working fluid. Therefore, the isolating device disclosed by the invention can effectively prevent the current circuit assembly from being corroded by the working fluid, leaking current and producing a bypass circuit effect.
Description
Technical field
The present invention relates to a kind of waterproof construction, specifically relating to a kind of for having in the process equipment of cutting fluid, with the device of isolated cutting fluid to current loop assembly Conductivity.
Background technology
For wire-cut electric discharge machine field, all need to use cutting fluid in process, be used for carrying out cooling or take away a large amount heat energy produced in electric discharge machining process on the one hand; Use cutting fluid to take away the chip thing produced in cutting workpiece to be machined process on the one hand.And in recent years for the requirement of environmental protection, cutting fluid many employings pure water that wire-cut electric discharge machine is applied.That the wire-cut electric discharge machine of jet flow or soaking type is positioned at processing tank inside and all has some circuit units, and these circuit units contact many can generation and conduct electricity bad impact with water, or bypass circuit effect occurs in electric leakage, water even causes the corrosion and damage of circuit unit.
So in prior art, as the new patent " power transfer device of wire cutting machine " of Taiwan Patent notification number M286084, it is applied in the control system of electric discharge processing line cutting machine, is to be combined by body, switching plug, the first gas source pipe and the second gas source pipe.This creation can control independent for carefully repairing in self discharge processing loop, loop of discharging processing machine, and utilize air pressure control technology reduce this creation circuit be subject to cutting fluid, adjuvant and cooling fluid impact probability, namely this creation utilizes the first gas source pipe, the second gas source pipe, cylinder and switches plug running circuit and switches, electrical control can be reduced, can steep and be placed in cutting fluid or adjuvant operates, air seal body can prevent from making moist or the problem of short circuit occurs.For another example the new patent " water proof type power transfer device " of Taiwan Patent notification number M330881 is combined by body, switching cylinder pressure, pressurization bullet part and mobile electric bridge.Be then because of same object do above-mentioned Patent Institute assembly improvement creation.
Above-mentioned power transfer device mechanism complexity need utilize the displacement action of pneumatic cylinder to carry out commutation circuit and select, and the waterproof for other electric devices being positioned at tank inside is considered then not relate to.
And for example Chinese utility model patent ZL200820208069.3 " waterproof construction in cell body ", the circuit board assemblies that the machining that discharges in cell body needs mainly is located at outside this cell body by it, and be provided with a downward opening water repellent component in cell body madial wall, and the electrode contact be connected with assemblies such as the external circuit board is located in water repellent component, make when working fluid fills with, pressure balance is produced by the hydraulic pressure of the air pressure in the gas storage space of this water repellent component and this its opening part of water repellent component, produce to this electrode contact place the situation damaging bypass circuit effect so as to preventing working fluid spill-over to occur.But this patent does not relate to the water-tight device of the circuit unit of the lower Handpiece Location being positioned at process water trench bottom, and the circuit unit of upper head soaks because of working fluid or the bad impact of conduction occurs in jet flow institute, or there is bypass circuit effect, even cause the damage that circuit unit corrodes.
With wire-cut electric discharge machine, upper head as shown in Figure 1 and lower head combine in schematic diagram, when when carrying out linear discharge cutting movement, run through the center line 3 of head 1 and lower head 2, kenel in ideal should keep vertical, the position of this center line 3 that is be the position that wire-cut electric discharge machine central electrode passes through, line electrode is the linear cutting tool adding man-hour as electric discharge, the power supply supply of this line electrode need rely on and head 1 is locked in top electrode wire terminal 22, power source line supply line 211 on 23, 212 (as shown in Figure 2), the electric current of supply is by top electrode wire terminal 22, the supreme guide seat 26 of 23 conducting, upper guide seat 26 inside comprises a conducting block can by current lead-through to line electrode, also can be contacted with the conducting block being positioned at lower guide seat 34 inside by the line electrode of lower head 2, conducting to lower guide seat 34 also there are two bottom electrode wire terminals 35, 36 connect lower power supply line 313, 314 (as shown in Figure 5), form current loop.Institute thinks makes discharge current can concentrate in current loop, produces maximum discharge power, produces maximum cutting heat energy when cutting with workpiece to be machined gap discharge, and the contactant of the conductive component in current loop preferably can keep insulation.Owing to being used for the cutting fluid many uses pure water processed in present wire-cut electric discharge machine, also be a kind of dielectric, and at present in located by prior art the upper punch water cover plate 28 of upper head and upper jet nozzle lid 29 and upper jet nozzle seat 210 be all metallic article and in electrical contact with the upper guide seat 26 in current loop, same, undershoot water cover plate 32 in located by prior art in lower head and lower jet nozzle lid 33 are also all metallic article and are electrically connected with the lower guide seat 34 in current loop, and all can contacts with cutting fluid and easily occur to leak electricity and the bad phenomenon such as metal erosion.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides the barrier means of discharging machine tool in a kind of groove, the insulative water-proof assembly of this barrier means and described current loop assembly keep being electrically insulated and current loop assembly and working fluid are isolated, whole current loop assembly and working fluid can be isolated by the insulating lid body of this barrier means, and the burn into that this barrier means can effectively avoid current loop assembly to be subject to processing liquid produces the phenomenon of electric leakage and bypass circuit effect.
The present invention in order to the technical scheme solving its technical problem and adopt is:
The barrier means of discharging machine tool in a kind of groove, described discharging machine tool has current loop assembly and the adjacent component with described current loop component touch, described adjacent component keeps being electrically insulated with described current loop assembly and the insulative water-proof assembly of current loop assembly and working fluid being isolated, described barrier means comprises described insulative water-proof assembly, described barrier means also comprises insulation lid, described insulation lid has gas storage space, described gas storage space forms an opening down, described current loop assembly is positioned at described gas storage space, air pressure in described gas storage space is greater than the liquid level pressure bottom described insulation lid.
The present invention in order to the further technical scheme solving its technical problem and adopt is:
Preferably, described insulation lid has the aeration hole that can pour into gas, pours into micro-air be greater than liquid level pressure bottom described insulation lid to keep the air pressure in described gas storage space by this aeration hole in the described gas storage space of described insulation lid.
Wherein, described insulative water-proof assembly can be the assembly that surface has insulative water-proof material layer, described insulative water-proof material layer material therefor is synthetic resin, epoxy resin, PU material etc., is formed at assembly surface to form described insulative water-proof assembly by modes such as coatings.Described insulative water-proof assembly can be more the assembly be made up of insulative water-proof material, and described insulative water-proof material can be insulating ceramics, glass or engineering plastics etc.
Preferably, described insulation lid is transparence.Insulation lid adopts transparent insulation material to make and transparent shape, is convenient to by outer observation inner.
Wherein, described discharging machine tool can be wire-cut electric discharge machine.
Described current loop assembly can be positioned at the upper head of described wire-cut electric discharge machine, and described current loop assembly comprises power source supply line, top electrode wire terminal and upper guide seat.Described current loop assembly also can be positioned at the lower head of described wire-cut electric discharge machine, and described current loop assembly comprises lower power supply line, bottom electrode wire terminal and lower guide seat.
Described insulative water-proof assembly can be positioned at the upper head of described wire-cut electric discharge machine, and described insulative water-proof assembly comprises upper punch water cover plate, upper jet nozzle lid, upper jet nozzle seat and upper conductor ring seat.Described insulative water-proof assembly also can be positioned at the lower head of described wire-cut electric discharge machine, and described insulative water-proof assembly comprises undershoot water cover plate, lower jet nozzle lid, lower head fixture plate and line sending wheels.
The invention has the beneficial effects as follows: barrier means of the present invention comprises insulative water-proof assembly and insulation lid, described insulative water-proof assembly and described current loop assembly keep being electrically insulated and current loop assembly and working fluid are isolated, described insulation lid utilizes the air pressure in it be greater than outside liquid pressure and stop working fluid to enter, the current loop assembly and the working fluid that make to comprise in insulation lid contact are isolated, and the burn into that therefore barrier means of the present invention can effectively avoid current loop assembly to be subject to processing liquid produces the phenomenon of electric leakage and bypass circuit effect.
Accompanying drawing explanation
Fig. 1 is the upper and lower head combination schematic diagram of described wire-cut electric discharge machine;
Fig. 2 is the upper head stereogram of wire-cut electric discharge machine of the present invention;
Fig. 3 is the upper head right side view of wire-cut electric discharge machine of the present invention;
Fig. 4 is the upper head front view of wire-cut electric discharge machine of the present invention;
The lower head stereogram of Fig. 5 wire-cut electric discharge machine of the present invention;
Fig. 6 is the lower head right side view of wire-cut electric discharge machine of the present invention;
Fig. 7 is the lower head front view of wire-cut electric discharge machine of the present invention.
Detailed description of the invention
Below by way of specific instantiation, the specific embodiment of the present invention is described, the personage being familiar with this skill can understand advantage of the present invention and effect easily by content disclosed in the present specification.The present invention also can be implemented in further, different ways, that is, not departing under disclosed category, can give different modifications and change.
Embodiment: the present embodiment is for wire-cut electric discharge machine, upper head as shown in Figure 1 and lower head combine in schematic diagram, when when carrying out linear discharge cutting movement, run through the center line 3 of head 1 and lower head 2, kenel in ideal should keep vertical, the position of this center line 3 that is be the position that wire-cut electric discharge machine central electrode passes through, line electrode is the linear cutting tool adding man-hour as electric discharge, the power supply supply of this line electrode need rely on and head 1 is locked in top electrode wire terminal 22, power source line supply line 211 on 23, 212 (as shown in Figure 2), the electric current of supply is by top electrode wire terminal 22, the supreme guide seat 26 of 23 conducting, upper guide seat 26 inside comprises a conducting block can by current lead-through to line electrode, also can be contacted with the conducting block being positioned at lower guide seat 34 inside by the line electrode of lower head 2, conducting to lower guide seat 34 also there are two bottom electrode wire terminals 35, 36 connect lower power supply line 313, 314 (as shown in Figure 5), form current loop.Institute thinks makes discharge current can concentrate in current loop, produces maximum discharge power, produces maximum cutting heat energy when cutting with workpiece to be machined gap discharge, and the contactant of the conductive component in current loop preferably can keep insulation.Owing to being used for the cutting fluid many uses pure water processed in present wire-cut electric discharge machine, also be a kind of dielectric, and at present in located by prior art the upper punch water cover plate 28 of upper head and upper jet nozzle lid 29 and upper jet nozzle seat 210 be all metallic article and in electrical contact with the upper guide seat 26 in current loop, same, undershoot water cover plate 32 in located by prior art in lower head and lower jet nozzle lid 33 are also all metallic article and are electrically connected with the lower guide seat 34 in current loop, and all can contacts with cutting fluid and easily occur to leak electricity and the bad phenomenon such as metal erosion.
An object of the present invention is electrically to completely cut off the current loop in the upper and lower head of wire-cut electric discharge machine, and the assembly in electrical contact with current loop being possessed insulate the function with waterproof, is be insulative water-proof assembly.So, refer to Fig. 2 to Fig. 4, current loop assembly in described upper head comprise power source supply line 211,212, top electrode wire terminal 22,23 and upper guide seat 26, upper head section mechanism keeps electrically source absolutely with Ceramic insulator 27 and target seeker upper connecting plate 25, and wherein power supply line 211,212 is locked in upper guide seat 26 with electrode wires joint 22,23; The insulative water-proof assembly of upper head comprises upper punch water cover plate 28, upper jet nozzle lid 29, upper jet nozzle seat 210 and wire ring seat 213 etc.Refer to Fig. 5 to Fig. 7, the current loop assembly of described lower head comprise lower power supply line 313,314, bottom electrode wire terminal 35,36 and lower guide seat 34, lower head section mechanism keeps being electrically insulated by Ceramic insulator 39 and lower semi-girder 310, and the power supply line 313,314 in lower head is locked in lower guide seat 34 with electrode wires joint 35,36; The insulative water-proof assembly of lower head comprises undershoot water cover plate 32, lower jet nozzle lid 33, line sending wheels 315 and lower head fixture plate 31 etc.Described insulative water-proof assembly can be the assembly that surface has insulative water-proof material layer, described insulative water-proof material layer material therefor is synthetic resin, epoxy resin, PU material etc., is formed at assembly surface to form described insulative water-proof assembly by modes such as coatings.Described insulative water-proof assembly can be more the assembly be made up of insulative water-proof material, and described insulative water-proof material can be insulating ceramics, glass or engineering plastics etc.
Another object of the present invention is to, in order to allow electrode wires joint, in soaking type electric discharge machining process, by working fluid corrosion and avoid producing electric leakage and the phenomenon of bypass circuit effect, and whole current loop assembly and working fluid are isolated, therefore establish insulation lid.So referring again to Fig. 2 to Fig. 4, insulation lid 214 locking by one with transparent insulation function is clamped between upper guide seat 26 and wire ring seat 213, described insulation lid has gas storage space, described gas storage space forms an opening down, described current loop assembly is positioned at described gas storage space, and via aeration hole 21 pour into micro-air make the air pressure in the gas storage space of insulation lid 214 inside keep be greater than insulation lid 214 bottom liquid level pressure, so can guarantee that the current loop assembly of upper head can keep the state of being electrically insulated, and isolate with working fluid.Wherein the bottom of this insulation lid 214 must higher than the bottom surface of upper punch water cover plate 28, to avoid, by the line electrode at this upper punch water cover plate 28 center, when carrying out non-directional motion, the impact of bad interference occurring.Referring again to Fig. 5 to Fig. 7, transparently have an X-rayed by one and be fixed in lower head fixture plate 31 with the insulation lid 37 that insulating materials is made with insulating lid fixing hole 311,312, described insulation lid has gas storage space, described gas storage space forms an opening down, described current loop assembly is positioned at described gas storage space, and via aeration hole 38 pour into micro-air make the air pressure of the gas storage space of insulation lid 37 inside keep be greater than insulation lid 37 bottom liquid level pressure.So can make electrode wires joint, in soaking type electric discharge machining process, by working fluid corrosion and avoid producing electric leakage and the phenomenon of bypass circuit effect, and the current loop assembly of lower head can be made can to guarantee state in insulation and with working fluid water segregation.
Above-described embodiment is only illustrative principle of the present invention and effect thereof, but not for limiting the present invention.The scope of the present invention, should listed by claims.
Claims (10)
1. the barrier means of discharging machine tool in a groove, described discharging machine tool has current loop assembly and the adjacent component with described current loop component touch, it is characterized in that: described adjacent component keeps being electrically insulated with described current loop assembly and the insulative water-proof assembly of current loop assembly and working fluid being isolated, described barrier means comprises described insulative water-proof assembly, described barrier means also comprises insulation lid, described insulation lid has gas storage space, described gas storage space forms an opening down, described current loop assembly is positioned at described gas storage space, air pressure in described gas storage space is greater than the liquid level pressure bottom described insulation lid.
2. the barrier means of discharging machine tool in groove as claimed in claim 1, is characterized in that: described insulation lid has the aeration hole that can pour into gas.
3. the barrier means of discharging machine tool in groove as claimed in claim 1, is characterized in that: described insulative water-proof assembly is the assembly that surface has insulative water-proof material layer.
4. the barrier means of discharging machine tool in groove as claimed in claim 1, is characterized in that: described insulative water-proof assembly is the assembly be made up of insulative water-proof material.
5. the barrier means of discharging machine tool in groove as claimed in claim 2, is characterized in that: described insulation lid is transparence.
6. the barrier means of discharging machine tool in groove as claimed in claim 1, is characterized in that: described discharging machine tool is wire-cut electric discharge machine.
7. the barrier means of discharging machine tool in groove as claimed in claim 6, it is characterized in that: described current loop assembly is positioned at the upper head of described wire-cut electric discharge machine, and described current loop assembly comprises power source supply line, top electrode wire terminal and upper guide seat.
8. the barrier means of discharging machine tool in groove as claimed in claim 6, it is characterized in that: described current loop assembly is positioned at the lower head of described wire-cut electric discharge machine, and described current loop assembly comprises lower power supply line, bottom electrode wire terminal and lower guide seat.
9. the barrier means of discharging machine tool in groove as claimed in claim 6, it is characterized in that: described insulative water-proof assembly is positioned at the upper head of described wire-cut electric discharge machine, and described insulative water-proof assembly comprises upper punch water cover plate, upper jet nozzle lid, upper jet nozzle seat and upper conductor ring seat.
10. the barrier means of discharging machine tool in groove as claimed in claim 6, it is characterized in that: described insulative water-proof assembly is positioned at the lower head of described wire-cut electric discharge machine, and described insulative water-proof assembly comprises undershoot water cover plate, lower jet nozzle lid, lower head fixture plate and line sending wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110402215.2A CN103143797B (en) | 2011-12-07 | 2011-12-07 | Isolating device of slot discharge machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110402215.2A CN103143797B (en) | 2011-12-07 | 2011-12-07 | Isolating device of slot discharge machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN103143797A CN103143797A (en) | 2013-06-12 |
| CN103143797B true CN103143797B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110402215.2A Active CN103143797B (en) | 2011-12-07 | 2011-12-07 | Isolating device of slot discharge machine tool |
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| CN (1) | CN103143797B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106290A (en) * | 1985-09-16 | 1987-03-18 | 洛迦诺电子工业股份有限公司 | Galvanic corrosion processing method and carry out the electro-erosion machine of this method |
| TW476687B (en) * | 2000-07-13 | 2002-02-21 | Ind Tech Res Inst | Wire cut electric discharge machining method and apparatus thereof |
| CN201279640Y (en) * | 2008-09-04 | 2009-07-29 | 徕通科技股份有限公司 | Water-proof structure in groove body |
| CN202411594U (en) * | 2011-12-07 | 2012-09-05 | 昆山徕通机电科技有限公司 | Isolating device of discharge machine tool in slot |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60123219A (en) * | 1983-12-06 | 1985-07-01 | Fanuc Ltd | Waterproof device for wire-cut electric discharge machine |
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2011
- 2011-12-07 CN CN201110402215.2A patent/CN103143797B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106290A (en) * | 1985-09-16 | 1987-03-18 | 洛迦诺电子工业股份有限公司 | Galvanic corrosion processing method and carry out the electro-erosion machine of this method |
| TW476687B (en) * | 2000-07-13 | 2002-02-21 | Ind Tech Res Inst | Wire cut electric discharge machining method and apparatus thereof |
| CN201279640Y (en) * | 2008-09-04 | 2009-07-29 | 徕通科技股份有限公司 | Water-proof structure in groove body |
| CN202411594U (en) * | 2011-12-07 | 2012-09-05 | 昆山徕通机电科技有限公司 | Isolating device of discharge machine tool in slot |
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| CN103143797A (en) | 2013-06-12 |
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