CN103056476B - Combination type welding electrode used for enameled wire welding - Google Patents
Combination type welding electrode used for enameled wire welding Download PDFInfo
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- CN103056476B CN103056476B CN201210466992.8A CN201210466992A CN103056476B CN 103056476 B CN103056476 B CN 103056476B CN 201210466992 A CN201210466992 A CN 201210466992A CN 103056476 B CN103056476 B CN 103056476B
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Abstract
The invention discloses a combination type welding electrode used for enameled wire welding. The electrode comprises two electrode units arranged at the lower end of an electrode fixing seat in parallel, respectively a left electrode unit and a right electrode unit. A gap used for maintaining insulation of the two units is arranged between the left electrode unit and the right electrode unit. An idler wheel is respectively arranged on two sides of the electrode units and at the upper end of the electrode fixing seat, a driving wheel is arranged on one side, and a driven wheel is arranged on the other side. A heating belt is connected between the driving wheel and the driven wheel, the heating belt is wound around the head portions at the lower ends of the left electrode unit and the right electrode unit to be bonded to the head portions of the left electrode unit and the right electrode unit. Therefore, resistance of the head portions of the electrode units is identical each time welding is conducted, welding temperature is stable, and welding quality and welding efficiency are effectively improved.
Description
Technical field
The present invention relates to a kind of welding tooling, relate in particular to a kind of combined welding electrode for enamel-covered wire welding.
Background technology
In electronics industry production field, enamel-covered wire, copper-in-aluminum enameled wire etc. are all a kind of common wire rods, because enamel-covered wire outer surface is wrapped up in by enamel-cover, insulate in surface, paint must be poked, could conducting form current loop after welding electrode contacting metal material, by the resistance on welding work pieces, produce heat and form welding.Common spot welding is to adopt upper and lower two welding electrodes to poke enamel-covered wire, then weld, this welding manner easily damages enamel-covered wire, welding product poor reliability, and quality is uncontrollable, for this kind of problem, people's modified electrode shape, adopts two welding electrodes arranged side by side to be fixed on electrode holder, and the head of welding electrode is connected, welding electrode energising is first melted enamel-covered wire, then carries out weld job.Current enamel-covered wire welding is substantially all to adopt this kind of welding electrode, with solving enamel-covered wire damage problem, yet the welding electrode self that this kind of head links together is a resistance, there is shunting, loss and problem of oxidation, common enamel-covered wire diameter is all below 0.1mm, this sectional area is much smaller than the sectional area of welding electrode head junction, because voltage is identical, therefore the larger resistance of area of cross section is less, the electric current flowing through is larger, welding electrode head shunting action is large, during welding, energy loss is larger, because electrode has born most of shunting, welding electrode head is very easily oxidized, loss is very fast, the loss of welding electrode causes its sectional area to change, the resistance of welding electrode head also changes, cause welding parameter unstable, need to adjust at any time welding parameter, welding efficiency is low, the welding uniformity of product is poor, qualification rate is low, copper-in-aluminum enameled wire is more increased for the requirement of welding temperature, this kind of welding electrode almost cannot weld.
Chinese patent Granted publication number: CN202199941U, April 25 2012 Granted publication day, a kind of weldering cutter of direct welding copper-in-aluminum enameled wire is disclosed, comprise electrode, electrode is provided with two, and these two electrode adhesion are integrated, and is provided with insulating barrier in the middle of it, one end of two electrodes is provided with point, and the middle part of this point is provided with a machining gap.Chinese patent Granted publication number: CN201261106Y, June 24 2009 Granted publication day, a kind of spot welding head that is difficult for breaking enamel-covered wire is disclosed, comprise two electrodes, the two lower end is connected, form welding ends, remainder insulation, the lower surface of described welding ends has at least a pair of opposite side to make fillet or lead angle is processed.Above-mentioned two schemes can not be pressed down by protective paint envelope curve when welding; adhesion phenomenon that simultaneously can generating electrodes; but the head of two welding electrodes still links together; during welding, shunting is very large; energy loss is large, causes easily oxidized, the loss of welding electrode head, and the resistance of welding electrode head also can change; need often regulate parameter or change welding electrode, have a strong impact on welding efficiency and welding quality.
Summary of the invention
The present invention is in order to overcome easily oxidized, the loss of head of the welding electrode of enamel-covered wire welding use of the prior art, resistance can change and cause the variation of welding temperature, have a strong impact on the deficiency of welding quality and welding efficiency, provide a kind of head of welding electrode to increase heating tape, while guaranteeing each welding, electrode head resistance sizes is consistent, temperature stabilization during each welding machine discharge, thus welding quality and the combined welding electrode for enamel-covered wire welding that improves welding efficiency can be guaranteed.
To achieve these goals, the present invention adopts following technical scheme:
A kind of combined welding electrode for enamel-covered wire welding, comprise two electrode units arranged side by side that are arranged on electrode holder lower end, be respectively left electrode unit and right electrode unit, between described left electrode unit and right electrode unit, be provided with and keep the gap of mutually insulated between the two, described electrode holder upper end is positioned at electrode unit both sides and is respectively equipped with roller, one side is driving wheel, opposite side is driven pulley, between described driving wheel and driven pulley, be connected with heating tape, the two ends of described heating tape are wound on respectively on driving wheel and driven pulley, the head of left electrode unit and right electrode unit lower end is walked around in heating tape between driving wheel and driven pulley, and fit with the head of left electrode unit and right electrode unit.Heating tape is communicated with left electrode unit and right electrode unit, during welding, electrode discharge during heating tape contact enamel-covered wire, heating tape fusing enamel-covered wire, electric discharge again, heating tape fusing tin point, while finally discharging, enamel-covered wire is left in heating tape, now driving wheel rotates an angle, a bit of distance is moved along the head of electrode unit in drive heating tape, then repeat above-mentioned action and carry out the welding of next workpiece, during so each welding work pieces, heating tape is all brand-new one section, in the time of guaranteeing each welding, the resistance of heating tape is identical, during welding, the temperature of heating tape is stable, thereby can guarantee welding quality, need in welding process, not adjust parameter, can effectively improve welding efficiency.
As preferably, described left electrode unit and the outside of right electrode unit are provided with groove, and described heating tape snaps in groove, and the groove outside at left electrode unit and right electrode unit on described electrode holder is provided with contact roller.For guarantee heating tape and left electrode unit and right electrode unit head under contact stabilization, heating tape is stuck in groove, and spacing to the outside of groove by contact roller.
As preferably, described heating tape is made by molybdenum alloy material, and its thickness is between 0.016mm-0.025mm.To discharge by controlling electric current at every turn, in order to guarantee to reach fast the heat that suitable temperature will be enough in welding process, because the gap between two electrode units is very little, enough little in order to increase the cross section of resistance heated band, increase like this resistance, during electric discharge, heat up rapidly and melt the outer field paint of enamel-covered wire in heating tape.
As preferably, described electrode unit comprises electrode body and is located at the heat-conducting layer on the two sides of electrode body.Electrode unit is divided into three-decker, and middle one deck is electrode body, has high temperature resistant, anti abrasive function, and the heat-conducting layer of both sides is for quick heat radiating after each welding, for welding is next time prepared.
As preferably, described electrode body is made by molybdenum alloy, and described heat-conducting layer is made of copper.Molybdenum alloy tool fusing point is high, wear-resistant, can guarantee the service life of electrode unit; The capacity of heat transmission of copper is strong, conductive capability is strong, and the sets of advantages of bi-material is made to electrode unit together, makes electrode unit have good electric conductivity, thermal conductivity and high temperature resistant, anti abrasive performance.
As preferably, in described gap, be provided with insulating barrier.Because the gap between left electrode body and right electrode body is very little, if having deviation can cause between left electrode body and right electrode body while installing, can be in contact with one another and causes open circuit, can affect like this effect of heating tape.
As preferably, between described left electrode unit and the inner portion face of right electrode unit and end face, be provided with chamfering.Because heating tape self has certain flexibility, the tin melting in welding process can produce an active force making progress to heating tape, between the inner portion face of left electrode unit and right electrode unit and end face, be provided with chamfering, being equivalent to middle corresponding position, heating tape is a breach, heating tape is little much to the resistance of tin like this, around, welding effect is good for the just easy coating varnish envelope curve of the tin of fusing, and enamel-covered wire is more reliable with being connected of pad.
Therefore, when the present invention has each welding, the resistance sizes of electrode unit head is consistent, can guarantee the temperature stabilization of each welding, thereby effectively improves welding quality and improve welding efficiency beneficial effect.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is that in the present invention, electrode unit coordinates schematic diagram with heating tape.
Fig. 3 is electrode unit side view in the present invention.
Fig. 4 is the structural representation of electrode unit head in the present invention.
In figure: right electrode unit 3 driven pulley 4 driving wheel 5 heating tape 6 contact roller 7 gap 8 groove 9 electrode body 10 heat-conducting layer 11 chamferings 12 of the left electrode unit 2 of electrode holder 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
A kind of combined welding electrode for enamel-covered wire welding as depicted in figs. 1 and 2, comprise two electrode units arranged side by side that are arranged on electrode holder 1 lower end, the left side be left electrode unit 2, the right be right electrode unit 3, between left electrode unit 2 and right electrode unit 3, be provided with and keep the gap 8 of mutually insulated between the two, the size in gap can be adjusted accordingly according to the size of pad, in gap 8 between left electrode unit 2 and right electrode unit 3, be provided with insulating barrier, electrode holder 1 upper end is positioned at electrode unit both sides and is respectively equipped with roller, the right be driving wheel 5, the left side be driven pulley 4, between driving wheel 5 and driven pulley 4, be connected with heating tape 6, heating tape 6 is made by molybdenum alloy material, its thickness is 0.02mm, the two ends of heating tape 6 are wound on respectively on driving wheel 5 and driven pulley 4, the head of left electrode unit 2 and right electrode unit 3 lower ends is walked around in heating tape 6 between driving wheel 5 and driven pulley 4, and fit with the head of left electrode unit 2 and right electrode unit 3, as shown in Figure 3, the outside of left electrode unit 2 and right electrode unit 3 is provided with groove 9, heating tape 6 snaps in groove 9, groove outside at left electrode unit 2 and right electrode unit 3 on electrode holder 1 is provided with contact roller 7, on electrode holder, be also provided with regulating wheel, regulating wheel is passed from driven pulley in heating tape, then stretch in the groove of left electrode unit, the head of walking around two electrode units arranged side by side enters in the groove of right electrode unit, through after regulating wheel, be wound on driving wheel again, driving wheel is connected with stepper motor, in the time of what a workpiece of every welding, driving wheel turns over an angle under the effect of stepper motor, thereby drive heating tape to move a step distance, while so just having guaranteed each welding, heating tape is all new, the resistance of heating tape is in full accord, thereby the temperature while guaranteeing each electric discharge is consistent, guarantee the uniformity of welding parameter, improve the welding quality of workpiece, electrode unit comprises electrode body 10 and is located at the heat-conducting layer 11 on the two sides of electrode body, heat conduction in electrode unit, 11 and electrode body 10 between Thickness Ratio be 1:3, electrode body 10 is made by molybdenum alloy, heat-conducting layer 11 is made of copper, molybdenum alloy tool fusing point is high, wear-resistant, can guarantee the service life of electrode unit, the capacity of heat transmission of copper is strong, conductive capability is strong, and the sets of advantages of bi-material is made to electrode unit together, makes electrode unit have good electric conductivity, thermal conductivity and high temperature resistant, anti abrasive performance, as shown in Figure 4, between the inner portion face of left electrode unit 2 and right electrode unit 3 and end face, be provided with chamfering, because heating tape self has certain flexibility, the tin melting in welding process can produce an active force making progress to heating tape, between the inner portion face of left electrode unit and right electrode unit and end face, be provided with chamfering, being equivalent to middle corresponding position, heating tape is a breach, heating tape is little much to the resistance of tin like this, the just easy coating varnish envelope curve of the tin of fusing around, welding effect is good, and enamel-covered wire is more reliable with being connected of pad.
By reference to the accompanying drawings, using method of the present invention is as follows: workpiece is fixed on workbench, makes the electrode unit head on the tin point aligning electrodes holder of pad on workpiece, enamel-covered wire be placed on tin point directly over, control electrode holder moves downward, until left electrode unit contacts with enamel-covered wire with the heating tape between right electrode unit, now controls the source of welding current and discharges for the first time, after the skin of paint outside fusing enamel-covered wire, exposes core, then discharge for the second time, make tin point fusing core place rear and that copper-in-aluminum enameled wire is exposed bonding, finally discharge for the third time, the tin of fusing heating tape and tin point contact point, in electric discharge for the third time, electrode holder moves up, when heating tape and pad depart from like this, can not glue tin, then control step driven by motor roller driving wheel rotates a stepping angle, a step distance is moved in heating tape like this, then take off workpiece, during next workpiece welding, contact is one section of brand-new heating tape, in the time of guaranteeing each welding, the resistance of electrode unit head heating tape is in full accord, as long as set parameter, just can guarantee the stable of each welding temperature, three electric discharges realize welding, control accurately the temperature of three electric discharges, the present invention is especially applicable to the welding of copper-in-aluminum enameled wire.Therefore, when the present invention has each welding, the resistance sizes of electrode unit head is consistent, can guarantee the temperature stabilization of each welding, thereby effectively improves welding quality and improve welding efficiency beneficial effect.
Claims (7)
1. the combined welding electrode for enamel-covered wire welding, comprise two electrode units arranged side by side that are arranged on electrode holder (1) lower end, be respectively left electrode unit (2) and right electrode unit (3), it is characterized in that, between described left electrode unit (2) and right electrode unit (3), be provided with and keep the gap of mutually insulated (8) between the two, described electrode holder (1) upper end is positioned at electrode unit both sides and is respectively equipped with roller, one side is driving wheel (5), opposite side is driven pulley (4), between described driving wheel (5) and driven pulley (4), be connected with heating tape (6), the two ends of described heating tape (6) are wound on respectively on driving wheel (5) and driven pulley (4), be positioned at heating tape (6) between driving wheel (5) and driven pulley (4) and walk around the head of left electrode unit (2) and right electrode unit (3) lower end, and fit with the head of left electrode unit (2) and right electrode unit (3).
2. a kind of combined welding electrode for enamel-covered wire welding according to claim 1, it is characterized in that, described left electrode unit (2) and the outside of right electrode unit (3) are provided with groove (9), described heating tape (6) snaps in groove (9), and the upper groove at left electrode unit (2) and right electrode unit (3) of described electrode holder (1) outside is provided with contact roller (7).
3. according to a kind of combined welding electrode for enamel-covered wire welding described in claim 1, it is characterized in that, described heating tape (6) are made by molybdenum alloy material, and its thickness is between 0.016mm-0.025mm.
4. according to a kind of combined welding electrode for enamel-covered wire welding described in claim 1 or 2 or 3, it is characterized in that, electrode unit comprises electrode body (10) and is located at the heat-conducting layer (11) on the two sides of electrode body.
5. a kind of combined welding electrode for enamel-covered wire welding according to claim 4, is characterized in that, described electrode body (10) is made by molybdenum alloy, and described heat-conducting layer (11) is made of copper.
6. a kind of combined welding electrode for enamel-covered wire welding according to claim 1, is characterized in that, in described left electrode unit (2) and the gap (8) between right electrode unit (3), is provided with insulating barrier.
7. a kind of combined welding electrode for enamel-covered wire welding according to claim 1, is characterized in that, between described left electrode unit (2) and the inner portion face of right electrode unit (3) and end face, is provided with chamfering (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210466992.8A CN103056476B (en) | 2012-11-19 | 2012-11-19 | Combination type welding electrode used for enameled wire welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210466992.8A CN103056476B (en) | 2012-11-19 | 2012-11-19 | Combination type welding electrode used for enameled wire welding |
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| Publication Number | Publication Date |
|---|---|
| CN103056476A CN103056476A (en) | 2013-04-24 |
| CN103056476B true CN103056476B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210466992.8A Expired - Fee Related CN103056476B (en) | 2012-11-19 | 2012-11-19 | Combination type welding electrode used for enameled wire welding |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318449A (en) * | 2001-06-07 | 2001-10-24 | 杨仕桐 | Spot welder capable of welding lacquered wire directly |
| CN2803602Y (en) * | 2004-05-12 | 2006-08-09 | 唐文轩 | Wire rod feeding and cutting device of ultrasonic welder |
| CN200988133Y (en) * | 2006-10-12 | 2007-12-12 | 吕华兵 | Spot welding head capable of automatic breaking line |
| CN202199941U (en) * | 2011-06-20 | 2012-04-25 | 珠海精易焊接设备有限公司 | Welding knife for directly welding aluminium-in-copper enamelled wire |
| CN202963715U (en) * | 2012-11-19 | 2013-06-05 | 宁波市摩恩光源材料制造有限公司 | Combined type welding electrode used for welding enamelled wires |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005169444A (en) * | 2003-12-10 | 2005-06-30 | Sumitomo Electric Ind Ltd | Method for joining insulation coated conductor and apparatus therefor |
-
2012
- 2012-11-19 CN CN201210466992.8A patent/CN103056476B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318449A (en) * | 2001-06-07 | 2001-10-24 | 杨仕桐 | Spot welder capable of welding lacquered wire directly |
| CN2803602Y (en) * | 2004-05-12 | 2006-08-09 | 唐文轩 | Wire rod feeding and cutting device of ultrasonic welder |
| CN200988133Y (en) * | 2006-10-12 | 2007-12-12 | 吕华兵 | Spot welding head capable of automatic breaking line |
| CN202199941U (en) * | 2011-06-20 | 2012-04-25 | 珠海精易焊接设备有限公司 | Welding knife for directly welding aluminium-in-copper enamelled wire |
| CN202963715U (en) * | 2012-11-19 | 2013-06-05 | 宁波市摩恩光源材料制造有限公司 | Combined type welding electrode used for welding enamelled wires |
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| CN103056476A (en) | 2013-04-24 |
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