CN203003299U - Welder for copper-clad aluminum enameled wire - Google Patents
Welder for copper-clad aluminum enameled wire Download PDFInfo
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- CN203003299U CN203003299U CN 201220611670 CN201220611670U CN203003299U CN 203003299 U CN203003299 U CN 203003299U CN 201220611670 CN201220611670 CN 201220611670 CN 201220611670 U CN201220611670 U CN 201220611670U CN 203003299 U CN203003299 U CN 203003299U
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Abstract
The utility model relates to a welder for a copper-clad aluminum enameled wire. The utility model can solve the problem of defects which seriously influence welding quality. The technical scheme adopted by the utility model has the key points that a welding mechanism comprises a main controller, a heating tape, a heating tape transmission, an electrode action device, an electrode conduction control device and an electrode; the electrode is electrically connected with the electrode conduction control device; the power supply end of the main controller, the power supply end of the heating tape transmission and the power supply end of the electrode action device are all connected with a power supply; the control end of the heating tape transmission, the control end of the electrode conduction control device and the control end of the electrode action device are all connected with the input output end of the main controller; the heating tape is movably connected with the heating tape transmission; the electrode is movably connected with the electrode action device; and the electrode is aligned with the heating tape. The welder can ensure accurate control in the welding process and has better welding quality.
Description
Technical field
The utility model is a kind of soldering apparatus, particularly relates to a kind of soldering apparatus of copper-in-aluminum enameled wire.
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 electrode movement device 1, 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 0.5mm, this sectional area is significantly 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 and cause welding temperature unstable, need the frequent welding parameter of adjusting, therefore 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, because the fusing point of copper is 1084 ℃, and the fusing point of aluminium is 660 ℃, both fusing point difference are very large, the expanded by heating coefficient is also different, excess Temperature or the too fast interior aluminium of copper-in-aluminum enameled wire that all can cause that heats up splash, when temperature is too low, solder joint is unreliable, existing welding electrode and the corresponding non-constant of welding method welding quality, therefore method and the welding electrode of seeking at present a kind of rational welding copper-in-aluminum enameled wire are the difficult points of copper-in-aluminum enameled wire welding.
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 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.during above-mentioned two kinds of welding electrodes welding copper-in-aluminum enameled wire, but the protective paint envelope curve is not pressed down when welding, but the head of two welding electrodes still links together, during welding, shunting is very large, energy loss is large, cause the welding electrode head easily oxidized, loss, the resistance of welding electrode head also can change, during welding, the temperature of electrode head is unstable, have a strong impact on welding quality, and this kind electrode is all once to discharge just to complete whole welding process, namely melt enamel-covered wire and melt simultaneously the tin point, can cause like this paint on enamel-covered wire not covered by tin in fusing fully, may cause and open circuit.
The utility model content
The purpose of this utility model is to have easily oxidized, the loss of head of welding electrode for solving prior art, resistance changes and causes welding temperature unstable, have a strong impact on the deficiency of welding quality, provide a kind of each welding can guarantee that thereby the consistent assurance of welding electrode head resistance welding temperature is consistent, and reached the soldering apparatus of the copper-in-aluminum enameled wire of welding purpose copper-in-aluminum enameled wire by multiple discharge.
the technical scheme that its technical problem that solves the utility model adopts is: a kind of soldering apparatus of copper-in-aluminum enameled wire, by Power supply, comprise soldering apparatus fixed mount and welding mechanism, described welding mechanism is connected with the soldering apparatus fixator, described welding mechanism comprises master controller, the heating tape, the heating tape transmission device, the electrode movement device, electrode conduction control device and electrode, described electrode is electrically connected to described electrode conduction control device, the power end of described master controller, the power end of heating tape transmission device is connected power end and all is connected with described power supply with the electrode movement device, the control end of described heating tape transmission device, electrode conduction control device control end is connected control end and all is connected with the input/output terminal of master controller with the electrode movement device, described heating tape and described heating tape transmission device are flexibly connected, described electrode and electrode movement device are flexibly connected, the described heating tape of described electrode alignment.The utility model can guarantee that temperature, duration and the action of when welding electrode is all controlled, can reach accurate control welding parameters purpose by multiple discharge, and welding quality is better.
As preferably, described electrode comprises relatively and minute to be arranged and the first electrode unit and second electrode unit of mutually insulated, the first end of described the first electrode unit be connected the first end of electrode unit and all be connected with described electrode conduction control device output, the second end of described the first electrode unit and the second end of the second electrode unit are all aimed at the heating tape.Electrode in the utility model is switched on by the heating tape by the electrode of two insulation, makes heat to concentrate on the heating tape.
As preferably, the heating tape is the molybdenum alloy metal tape of thickness between 0.016mm-0.025mm.At every turn by controlling current discharge, for the temperature that guarantees to reach fast suitable in welding process will be enough heat, because the length 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 the first electrode unit and the second electrode unit include electrode body and the two sides of electrode body of being laid on heat-conducting layer, the fusing point of heat-conducting layer is less than the fusing point of described electrode body, and the thermal conductivity of described heat-conducting layer and electric conductivity are greater than thermal conductivity and the electric conductivity of described electrode body.Can use molybdenum alloy as electrode body, copper is as heat-conducting layer, and 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, described the first electrode unit is provided with chamfering between the side of the second electrode unit side and first electrode unit the second end end face, described the second electrode unit also is provided with chamfering between the side of the first electrode unit side and second electrode unit the second end 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 medial surface of the first electrode unit and the second 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.
Described power supply is for controlling power supply, and the control end of described control power supply is connected with described master controller output.Arrange like this, the rising edge of the output current of power supply and trailing edge, turn-on and turn-off all can be controlled by master controller, have improved the accurate control of welding temperature.
Substantial effect of the present utility model is: when the utility model can guarantee welding, the temperature of electrode, duration and heating tape action all can accurately be controlled, and namely can reach accurate control welding parameters purpose by the electrode multiple discharge, and welding quality is better.
Description of drawings
Fig. 1 is a kind of circuit block diagram of welding mechanism in the utility model;
Fig. 2 is welding mechanism structural representation in the utility model;
Fig. 3 is that in the utility model, electrode unit coordinates schematic diagram with the heating tape;
Fig. 4 is electrode unit left view in the utility model;
Fig. 5 is the head construction schematic diagram of a kind of electrode unit in the utility model.
In figure: 1, electrode movement device, the 2, first electrode unit, the 3, second electrode unit, 4, driven pulley, 5, driving wheel, 6, the heating tape, 7, contact roller, 8, the gap, 9, groove, 10, electrode body, 11, heat-conducting layer, 12, chamfering, 20, master controller, 21, electrode conduction control device, 22, electrode, 24, the heating tape transmission device.
The specific embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
a kind of soldering apparatus of copper-in-aluminum enameled wire, by Power supply, comprise soldering apparatus fixed mount and welding mechanism, welding mechanism is connected with the soldering apparatus fixator, welding mechanism (referring to accompanying drawing 1) comprises master controller 20, the heating tape, heating tape transmission device 24, electrode movement device 23, electrode conduction control device 21 and electrode 22, electrode 24 is electrically connected to electrode conduction control device 21, the control end of controlling power supply is connected with the master controller output, the power end of master controller 20, the power end that the power end of heating tape transmission device 24 is connected with the electrode movement device all is connected with power supply, the control end of heating tape transmission device 24, the control end that electrode conduction control device 21 control ends are connected with the electrode movement device all is connected with the input/output terminal of master controller 20, the heating tape is connected with heating tape transmission device 24, electrode is connected with the electrode movement device, the electrode alignment heating tape.electrode 22(is referring to accompanying drawing 3) comprise two electrode units arranged side by side that are arranged on electrode movement device 1 lower end, the left side be the first electrode unit 2, the right be the second electrode unit 3, be provided with between the first electrode unit 2 and the second electrode unit 3 and keep the gap 8 of mutually insulated between the two, the size in gap can be done corresponding adjustment according to the pad size of when welding coupling, be provided with insulating barrier in gap 8 between the first electrode unit 2 and the second electrode unit 3, the first end of the first electrode unit be connected the first end of electrode unit and all be connected with electrode conduction control device 21 outputs, the second end of the first electrode unit and the second end of the second electrode unit are all aimed at heating tape 6.
heating tape transmission device 24(is referring to accompanying drawing 2) comprise and be positioned at the roller that electrode 22 both sides arrange respectively and be fixed on stepper motor on the soldering apparatus fixator, 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 the first electrode unit 2 and the second 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 the first electrode unit 2 and the second electrode unit 3, the first electrode unit 2 and the second electrode unit 3(are referring to accompanying drawing 4) the outside be provided with groove 9, heating tape 6 snaps in groove 9, be provided with contact roller 7 on electrode movement device 1 outside the groove of the first electrode unit 2 and the second electrode unit 3, regulating wheel is passed from driven pulley in the heating tape, then stretch in the groove of the first electrode unit, the head of walking around two electrode units arranged side by side enters in the groove of the second 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, the first electrode unit and the second electrode unit include electrode body 10 and are located at heat-conducting layer 11 on the two sides of electrode body, electrode body 10 is made by molybdenum alloy, and heat-conducting layer 11 is made of copper, and molybdenum alloy tool fusing point is high, wear-resistant, can guarantee 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, be provided with chamfering (referring to accompanying drawing 5) between the inner portion face of the first electrode unit 2 and the second 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 the first electrode unit and the second 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.
When the present embodiment uses, first set running parameter by the user, comprise actuation time, amplitude, frequency, pass through dutycycle and the discharge cycle time of electrode in each work period, then workpiece is fixed, make electrode unit head on the tin point aligning electrodes holder of pad on workpiece under, copper-in-aluminum enameled wire be placed on tin point directly over;
The electrode movement device receives the command signal of master controller, electrode moves downward, until the first electrode unit contacts with copper-in-aluminum enameled wire with heating tape between the second electrode unit, master controller sends control command to the electrode conduction control device, the conducting of electrode conduction control device, power supply discharges for the first time to electrode, heating tape energising between the first electrode unit and the second electrode unit is heated, discharging, the temperature of heating tape reaches 120 ℃ after a pulse period, exposes core after the outer skin of paint fusing of copper-in-aluminum enameled wire.This when discharge, when the main controller controls power supply reaches stable state to the electric current of electrode discharge, keep discharge pulse of steady-state current, then closed the path of broken Electrode and power supply by the electrode conduction control device, enter the gap phase.
The gap is after pulse period, master controller sends control command to the electrode conduction control device, the conducting of electrode conduction control device, power supply discharges for the second time to electrode, heating tape energising between the first electrode unit and the second electrode unit is heated, discharging, the temperature of heating tape reaches 350 ℃ after a pulse period, and the tin point on heating tape fusing pad makes tin after fusing wrap copper-in-aluminum enameled wire exposed core place; In this discharge process, by the path of electrode conduction control device conduction electrode and power supply, by steady-state current, then closed the path of broken Electrode and power supply by the electrode conduction control device on electrode, reenter the gap phase.
the gap is after pulse period again, master controller sends control command to the electrode conduction control device, the conducting of electrode conduction control device, power supply discharges for the third time to electrode, discharging, the temperature of heating tape is 250 ℃ after a pulse period, fit with the heating tape and can melt near the small part tin of locating, and the most of not fusing of whole tin point, tin can conveniently can not glued with the solder joint disengaging in the heating tape like this, in discharge for the third time, the electrode movement device receives the command signal of master controller, electrode moves up, tin point after heating tape and welding is separated from, master controller is controlled the heating tape by the rotation of controlling the stepper motor drive driving wheel in the transmission device of heating tape simultaneously and is moved a step distance, then take off workpiece.In this discharge process, by the path of electrode conduction control device conduction electrode and power supply, on electrode, by after steady-state current, electric power outputting current enters trailing edge until electric current makes zero, and a work period finishes.
Control command in the present embodiment makes in the present embodiment that in each work period, the dutycycle by electrode is 45%.
Above embodiment is a kind of better scheme of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (6)
1. the soldering apparatus of a copper-in-aluminum enameled wire, by Power supply, comprise soldering apparatus fixed mount and welding mechanism, described welding mechanism is connected with the soldering apparatus fixator, it is characterized in that: described welding mechanism comprises master controller, the heating tape, the heating tape transmission device, the electrode movement device, electrode conduction control device and electrode, described electrode is electrically connected to described electrode conduction control device, the power end of described master controller, the power end of heating tape transmission device is connected power end and all is connected with described power supply with the electrode movement device, the control end of described heating tape transmission device, electrode conduction control device control end is connected control end and all is connected with the input/output terminal of master controller with the electrode movement device, described heating tape and described heating tape transmission device are flexibly connected, described electrode and electrode movement device are flexibly connected, the described heating tape of described electrode alignment.
2. the soldering apparatus of copper-in-aluminum enameled wire according to claim 1, it is characterized in that: described electrode comprises relatively and minute to be arranged and the first electrode unit and second electrode unit of mutually insulated, the first end of described the first electrode unit be connected the first end of electrode unit and all be connected with described electrode conduction control device output, the second end of described the first electrode unit and the second end of the second electrode unit are all aimed at the heating tape.
3. the soldering apparatus of copper-in-aluminum enameled wire according to claim 1 and 2, it is characterized in that: the heating tape is the molybdenum alloy metal tape of thickness between 0.016mm-0.025mm.
4. the soldering apparatus of copper-in-aluminum enameled wire according to claim 1 and 2, it is characterized in that: described the first electrode unit and the second electrode unit include electrode body and the two sides of electrode body of being laid on heat-conducting layer, the fusing point of heat-conducting layer is less than the fusing point of described electrode body, and the thermal conductivity of described heat-conducting layer and electric conductivity are greater than thermal conductivity and the electric conductivity of described electrode body.
5. the soldering apparatus of copper-in-aluminum enameled wire according to claim 1 and 2, it is characterized in that: described the first electrode unit is provided with chamfering between the side of the second electrode unit side and first electrode unit the second end end face, and described the second electrode unit also is provided with chamfering between the side of the first electrode unit side and second electrode unit the second end end face.
6. the soldering apparatus of copper-in-aluminum enameled wire according to claim 1 and 2 is characterized in that: described power supply is for controlling power supply, and the control end of described control power supply is connected with described master controller output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611670 CN203003299U (en) | 2012-11-19 | 2012-11-19 | Welder for copper-clad aluminum enameled wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611670 CN203003299U (en) | 2012-11-19 | 2012-11-19 | Welder for copper-clad aluminum enameled wire |
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| CN203003299U true CN203003299U (en) | 2013-06-19 |
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| CN 201220611670 Expired - Fee Related CN203003299U (en) | 2012-11-19 | 2012-11-19 | Welder for copper-clad aluminum enameled wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441615A (en) * | 2013-08-20 | 2013-12-11 | 广东美芝精密制造有限公司 | Lead connection device and connection method |
-
2012
- 2012-11-19 CN CN 201220611670 patent/CN203003299U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441615A (en) * | 2013-08-20 | 2013-12-11 | 广东美芝精密制造有限公司 | Lead connection device and connection method |
| CN103441615B (en) * | 2013-08-20 | 2015-10-28 | 广东美芝精密制造有限公司 | Wire connections and method of attachment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20181119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |