CN202963715U - Combined type welding electrode used for welding enamelled wires - Google Patents
Combined type welding electrode used for welding enamelled wires Download PDFInfo
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- CN202963715U CN202963715U CN 201220611510 CN201220611510U CN202963715U CN 202963715 U CN202963715 U CN 202963715U CN 201220611510 CN201220611510 CN 201220611510 CN 201220611510 U CN201220611510 U CN 201220611510U CN 202963715 U CN202963715 U CN 202963715U
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Abstract
The utility model discloses a combined type welding electrode used for welding enamelled wires. The combined type welding electrode comprises two parallel electrode units arranged at the lower end of an electrode fixing seat, the two electrode units are respectively a left electrode unit and a right electrode unit, a gap for keeping the two units mutually insulated is arranged between the left electrode unit and the right electrode unit, the upper end of the electrode fixing seat is provided with rolling wheels respectively at two sides of the electrode units, one side is provided with a driving wheel, the other side is provided with a driven wheel, a heating belt is connected between the driving wheel and the driven wheel, and the heating belt passes by the head parts at the lower ends of the left electrode unit and the right electrode unit and is abutted to the head parts of the left electrode unit and the right electrode unit. The combined type welding electrode disclosed by the utility model has the beneficial effects that the resistances of the head parts of the electrode units are consistent in each time of welding, and the temperature of each time of welding is stable, so that the welding quality and the welding efficiency are effectively improved.
Description
Technical field
The utility model relates to a kind of welding tooling, relates 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. are all 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 paint, could conducting form current loop after welding electrode contacting metal material, produce heat and form welding by the resistance on 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 first melted enamel-covered wire, then carries out weld job.present enamel-covered wire welding is substantially all 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, therefore the larger resistance of area of cross section is less, the electric current that flows through is larger, welding electrode head shunting action is large, during welding, energy loss is larger, 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, 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 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, both the lower end is connected, 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; 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.
The utility model content
The utility model welds easily oxidized, the loss of head of the welding electrode of use 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, when guaranteeing each welding, the electrode head resistance sizes is consistent, 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 utility model 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 right electrode unit 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, be connected with the heating tape between described driving wheel and driven pulley, 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.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, discharge again, heating tape fusing tin point, when discharging at last, enamel-covered wire is left in the heating tape, 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 repeat above-mentioned action and carry out the welding of next workpiece, during so each welding work pieces, the 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 to not adjust parameter in welding process, can effectively improve 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 groove, and the groove outside at left electrode unit and right electrode unit on 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 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, for the temperature that guarantees to reach fast suitable in 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 paint 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 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, 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, makes electrode unit have good electric conductivity, thermal conductivity and high temperature resistant, anti abrasive performance.
As preferably, be provided with insulating barrier in described gap.Because the gap between left electrode body and 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 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 end face.Because heating tape self has certain flexibility, the tin that melts in 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 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 utlity model 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 the welding efficiency beneficial effect.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is that in the utility model, electrode unit coordinates schematic diagram with the heating tape.
Fig. 3 is electrode unit side view in the utility model.
Fig. 4 is the structural representation of electrode unit head in the utility model.
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 utility model is further described:
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 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 gap 8 between left electrode unit 2 and right electrode unit 3, 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, be connected with heating tape 6 between driving wheel 5 and 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 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, be provided with contact roller 7 on electrode holder 1 outside the groove of left electrode unit 2 and right electrode unit 3, 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 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, thereby drive the heating tape and move a step distance, when so just having guaranteed each welding, the heating tape is all new, the resistance of heating tape is in full accord, thereby the temperature when guaranteeing each 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 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, 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, makes electrode unit have 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 end face, because heating tape self has certain flexibility, the tin that melts in 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 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 utility model 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, the control electrode holder moves downward, until left electrode unit contacts with enamel-covered wire with heating tape between right electrode unit, control the source of welding current and discharge for the first time this moment, exposes core after the outer skin of paint of fusing enamel-covered wire, then discharge for the second time, after making tin point fusing and the exposed core place of copper-in-aluminum enameled wire is bonding, discharge for the third time at last, the tin of fusing heating tape and tin point contact point, in discharge for the third time, 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, during next workpiece welding, contact is one section brand-new heating tape, in the time of guaranteeing each welding, the resistance of electrode unit head heating tape is in full accord, 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, the utility model especially is fit to the welding of copper-in-aluminum enameled wire.Therefore, when the utlity model 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 the 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 right electrode unit (3) 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), be connected with heating tape (6) between described driving wheel (5) and driven pulley (4), 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, the outside of described left electrode unit (2) and right electrode unit (3) is provided with groove (9), described heating tape (6) snaps in groove (9), the upper contact roller (7) that is provided with outside the groove of left electrode unit (2) and right electrode unit (3) of described electrode holder (1).
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, 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 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 end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611510 CN202963715U (en) | 2012-11-19 | 2012-11-19 | Combined type welding electrode used for welding enamelled wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611510 CN202963715U (en) | 2012-11-19 | 2012-11-19 | Combined type welding electrode used for welding enamelled wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202963715U true CN202963715U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611510 Withdrawn - After Issue CN202963715U (en) | 2012-11-19 | 2012-11-19 | Combined type welding electrode used for welding enamelled wires |
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| Country | Link |
|---|---|
| CN (1) | CN202963715U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056476A (en) * | 2012-11-19 | 2013-04-24 | 宁波市摩恩光源材料制造有限公司 | Combination type welding electrode used for enameled wire welding |
-
2012
- 2012-11-19 CN CN 201220611510 patent/CN202963715U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056476A (en) * | 2012-11-19 | 2013-04-24 | 宁波市摩恩光源材料制造有限公司 | Combination type welding electrode used for enameled wire welding |
| CN103056476B (en) * | 2012-11-19 | 2014-12-10 | 宁波市摩恩光源材料制造有限公司 | Combination type welding electrode used for enameled wire welding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |