CN103056476A - 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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- CN103056476A CN103056476A CN2012104669928A CN201210466992A CN103056476A CN 103056476 A CN103056476 A CN 103056476A CN 2012104669928 A CN2012104669928 A CN 2012104669928A CN 201210466992 A CN201210466992 A CN 201210466992A CN 103056476 A CN103056476 A CN 103056476A
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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 the enamel-covered wire welding.
Background technology
In the electronics industry production field, enamel-covered wire, copper-in-aluminum enameled wire etc. all are a kind of common wire rods, because the enamel-covered wire outer surface is wrapped up in by enamel-cover, insulate in the surface, must poke lacquer, could conducting form current loop behind the welding electrode contacting metal material, produce heat and form welding by the resistance on the welding work pieces.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, the welding product poor reliability, and quality is uncontrollable, for this kind problem, people's modified electrode shape adopts two welding electrodes arranged side by side to be fixed on the electrode holder, and the head of welding electrode is connected, the welding electrode energising is melted enamel-covered wire first, then carries out weld job.Present enamel-covered wire welding substantially all is to adopt this kind welding electrode, with solving the enamel-covered wire damage problem, yet the welding electrode that this kind head links together self 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, so the larger resistance of the area of cross section is less, the electric current that flows through is larger, welding electrode head shunting action is large, energy loss is larger during welding, because electrode has born most of shunting, the very easily oxidation of welding electrode head, loss is very fast, the loss of welding electrode causes its sectional area to change, and the resistance of welding electrode head also changes, and causes welding parameter unstable, need to adjust at any time welding parameter, welding efficiency is low, and the welding uniformity of product is poor, and qualification rate is low, copper-in-aluminum enameled wire is more increased for the requirement of welding temperature, and this kind welding electrode almost can't 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 links to each other, form welding ends, the 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.But above-mentioned two schemes protective paint envelope curve is not pressed down when welding; adhesion phenomenon that simultaneously can generating electrodes; but the head of two welding electrodes still links together; shunting is very large during welding; 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 to regulate parameter or change welding electrode, have a strong impact on welding efficiency and welding quality.
Summary of the invention
The present invention welds easily oxidized, the loss of head of the welding electrode of usefulness in order to overcome enamel-covered wire 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 the heating tape, the electrode head resistance sizes is consistent when guaranteeing each welding, temperature stabilization during each welding machine discharge, thus welding quality and the combined welding electrode that is used for the 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 the 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, be provided with between described left electrode unit and the right electrode unit and keep the gap of mutually insulated between the two, described electrode holder upper end is positioned at the electrode unit both sides and is respectively equipped with roller, one side is driving wheel, opposite side is driven pulley, be connected with the heating tape between described driving wheel and the driven pulley, the two ends of described heating tape are wound on respectively on driving wheel and the 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 fits with the head of left electrode unit and right electrode unit.The 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, again discharge, heating tape fusing tin point, enamel-covered wire is left in the heating tape when discharging at last, this moment, driving wheel rotated an angle, a bit of distance is moved along the head of electrode unit in the drive heating tape, then repeats the welding that next workpiece is carried out in above-mentioned action, during so each welding work pieces, the heating tape all is brand-new one section, the resistance of heating tape is identical in the time of guaranteeing each welding, and the temperature of heating tape is stable during welding, thereby can guarantee welding quality, need in welding process, not adjust parameter, can the Effective Raise welding efficiency.
As preferably, the outside of described left electrode unit and right electrode unit is provided with groove, and described heating tape snaps in the groove, and the groove outside at left electrode unit and right electrode unit on the described electrode holder is provided with contact roller.For contact stabilization under the head that guarantees heating tape and left electrode unit and right electrode unit, the heating tape is stuck in the 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 the control electric current at every turn, for the temperature that guarantees to reach fast suitable in the welding process will be enough heat, because the gap between two electrode units is very little, for the cross section that increases the resistance heated band enough little, increase like this resistance, during discharge heat up rapidly and melt the outer field lacquer of enamel-covered wire in the heating tape.
As preferably, described electrode unit comprises electrode body and is located at 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 next time welding is 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, and is 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 electrode unit together, so that electrode unit has good electric conductivity, thermal conductivity and high temperature resistant, anti abrasive performance.
As preferably, be provided with insulating barrier in the described gap.Because the gap between left electrode body and the right electrode body is very little, if having deviation to cause when installing can be in contact with one another between left electrode body and the right electrode body causes open circuit, can affect like this effect of heating tape.
As preferably, be provided with chamfering between the inner portion face of described left electrode unit and right electrode unit and the end face.Because heating tape self has certain flexibility, the tin that melts in the welding process can produce an active force that makes progress to the heating tape, be provided with chamfering between the inner portion face of left electrode unit and right electrode unit and the end face, being equivalent to middle corresponding position, heating tape is a breach, the heating tape is little much to the resistance of tin like this, around the just easy coating varnish envelope curve of the tin of fusing, welding effect is good, and enamel-covered wire is more reliable with being connected of pad.
Therefore, when the present invention had each welding, the resistance sizes of electrode unit head was consistent, can guarantee the temperature stabilization of each welding, thus Effective Raise welding quality and raising welding efficiency beneficial effect.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is that electrode unit cooperates schematic diagram with the heating tape among the present invention.
Fig. 3 is electrode unit side view among the present invention.
Fig. 4 is the structural representation of electrode unit head among the present invention.
Among the figure: 8 grooves, 9 electrode bodies, 10 heat-conducting layers, 11 chamferings 12 of 6 contact rollers, 7 gaps, electrode holder 1 left electrode unit 2 right electrode unit 3 driven pulley 4 driving wheels, 5 heating tapes.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments:
A kind of combined welding electrode for the 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, be provided with between left electrode unit 2 and the right electrode unit 3 and keep the gap 8 of mutually insulated between the two, the size in gap can be according to the size of pad and corresponding the adjustment, be provided with insulating barrier in the gap 8 between left electrode unit 2 and the right electrode unit 3, electrode holder 1 upper end is positioned at the electrode unit both sides and is respectively equipped with roller, the right be driving wheel 5, the left side be driven pulley 4, be connected with heating tape 6 between driving wheel 5 and the driven pulley 4, 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 the driven pulley 4, and the head of left electrode unit 2 and right electrode unit 3 lower ends is walked around in the 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 the groove 9, the groove outside at left electrode unit 2 and right electrode unit 3 on the electrode holder 1 is provided with contact roller 7, also be provided with regulating wheel on the electrode holder, regulating wheel is passed from driven pulley in the 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, be wound on the driving wheel after passing again regulating wheel, 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, move a step distance thereby drive the heating tape, and the heating tape all is new when so just having guaranteed each welding, the resistance of heating tape is in full accord, thereby the temperature when guaranteeing each discharge is consistent, guarantees the uniformity of welding parameter, improves the welding quality of workpiece; Electrode unit comprises electrode body 10 and is located at heat-conducting layer 11 on the two sides of electrode body, heat conduction in the 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, and is 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 electrode unit together, so that electrode unit has good electric conductivity, thermal conductivity and high temperature resistant, anti abrasive performance; As shown in Figure 4, be provided with chamfering between the inner portion face of left electrode unit 2 and right electrode unit 3 and the end face, because heating tape self has certain flexibility, the tin that melts in the welding process can produce an active force that makes progress to the heating tape, be provided with chamfering between the inner portion face of left electrode unit and right electrode unit and the end face, being equivalent to middle corresponding position, heating tape is a breach, the heating tape is little much to the resistance of tin like this, around the just easy coating varnish envelope curve of the tin of fusing, 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 the workbench so that the electrode unit head on the tin point aligning electrodes holder of pad on the workpiece, enamel-covered wire be placed on tin point directly over; The control electrode holder moves downward, until left electrode unit contacts with enamel-covered wire with heating tape between the right electrode unit, controls the source of welding current this moment and carries out discharge first time, exposes core behind the fusing enamel-covered wire skin of paint outward; Then carry out the discharge second time, so that tin point fusing core place rear and that copper-in-aluminum enameled wire is exposed is bonding; Discharge for the third time at last, the tin of fusing heating tape and tin point contact point, in for the third time discharge, the electrode holder moves up, can not glue tin when heating tape and pad break away from like this, then control step driven by motor roller driving wheel rotates a stepping angle, a step distance is moved in the heating tape like this, then take off workpiece, contact is one section brand-new heating tape during next workpiece welding, the resistance of electrode unit head heating tape is in full accord in the time of guaranteeing each welding, just can guarantee the stable of each welding temperature as long as set parameter, three discharges realize welding, control accurately the temperature of three discharges, and the present invention especially is fit to the welding of copper-in-aluminum enameled wire.Therefore, when the present invention had each welding, the resistance sizes of electrode unit head was consistent, can guarantee the temperature stabilization of each welding, thus Effective Raise welding quality and raising welding efficiency beneficial effect.
Claims (7)
1. one kind is used for the combined welding electrode that enamel-covered wire welds, 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, be provided with between described left electrode unit (2) and the right electrode unit (3) and keep between the two the gap of mutually insulated (8), described electrode holder (1) upper end is positioned at the electrode unit both sides and is respectively equipped with roller, one side is driving wheel (5), opposite side is driven pulley (4), be connected with heating tape (6) between described driving wheel (5) and the driven pulley (4), the two ends of described heating tape (6) are wound on respectively on driving wheel (5) and the driven pulley (4), be positioned at heating tape (6) between driving wheel (5) and the 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, the outside of described left electrode unit (2) and right electrode unit (3) is provided with groove (9), described heating tape (6) snaps in the groove (9), and the upper groove outside at left electrode unit (2) and right electrode unit (3) of described electrode holder (1) is provided with contact roller (7).
3. described a kind of combined welding electrode for enamel-covered wire welding according to claim 1 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 claim 1 and 2 or 3 described a kind of combined welding electrodes for enamel-covered wire welding, it is characterized in that, electrode unit comprises electrode body (10) and is located at heat-conducting layer (11) on the two sides of electrode body.
5. a kind of combined welding electrode for the 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 the enamel-covered wire welding according to claim 1 is characterized in that, is provided with insulating barrier in the gap (8) between described left electrode unit (2) and the right electrode unit (3).
7. a kind of combined welding electrode for the enamel-covered wire welding according to claim 1 is characterized in that, is provided with chamfering (12) between the inner portion face of described left electrode unit (2) and right electrode unit (3) and the end face.
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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN103056476A true CN103056476A (en) | 2013-04-24 |
| CN103056476B 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 (6)
| 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 |
| JP2005169444A (en) * | 2003-12-10 | 2005-06-30 | Sumitomo Electric Ind Ltd | Method for joining insulation coated conductor and apparatus therefor |
| 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 |
-
2012
- 2012-11-19 CN CN201210466992.8A patent/CN103056476B/en not_active Expired - Fee Related
Patent Citations (6)
| 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 |
| JP2005169444A (en) * | 2003-12-10 | 2005-06-30 | Sumitomo Electric Ind Ltd | Method for joining insulation coated conductor and apparatus therefor |
| 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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| CN103056476B (en) | 2014-12-10 |
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Granted publication date: 20141210 Termination date: 20181119 |