CN205032825U - Automatic welder of circuit board welding machine - Google Patents
Automatic welder of circuit board welding machine Download PDFInfo
- Publication number
- CN205032825U CN205032825U CN201520771869.6U CN201520771869U CN205032825U CN 205032825 U CN205032825 U CN 205032825U CN 201520771869 U CN201520771869 U CN 201520771869U CN 205032825 U CN205032825 U CN 205032825U
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- Prior art keywords
- conduit
- shell
- welder
- circuit board
- nozzle
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- Withdrawn - After Issue
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Abstract
The utility model relates to an automatic welder of circuit board welding machine, including shell, pipe, manifold and nozzle, the travelling arm lower extreme is equipped with welding set's shell admittedly, and the splendid attire has the soldering tin that melts for liquid in the shell, coaxial arrangement has a pipe in the shell, the hot -blast input device of the sealed intercommunication in this pipe upper end, and the sealed intercommunication system in pipe lower part has many manifolds, and the manifold opening stretches into the fusional soldering tin bottom in the shell, the pipe lower extreme passes terminal surface and sealing connection nozzle under the shell. The nozzle of this device adopts the mode of high temperature blowout soldering tin, can realize the control to the soldering tin volume through the flow control to high -pressure gas, and the pressure differential of utilizing high -speed air current movable property to give birth to is sprayed the soldering tin welding and is cut straightly components and parts, avoids soldering tin to be stained with and glues on the nozzle, promotes welding quality.
Description
Technical field
The utility model belongs to wiring board welding field, relates to the welding of direct plugging-in electronic device, especially a kind of automatic soldering device of welder for circuit board.
Background technology
On wiring board, device is divided into patch-type and direct plugging-in, and wherein direct plugging-in device welding manner is: use electric iron by melts soldering tin, utilize the mobility of gravity and liquid, flow into by scolding tin in solder joint hole, fixed by straight cutting plug-in unit after waiting scolding tin naturally to cool.The welding efficiency of this method is low, and liquid solder has certain viscosity to be bonded on solder horn not easily to fall, and solder horn is oxidizable, and introduce impurity effect welding quality, electric iron temperature is higher easily to be scorched components and parts and wiring board.
At present, wiring board batch production adopts crest welder usually, its operation principle adopts heater that melts soldering tin is become liquid, then the wiring board bottom surface being plugged components and parts is skimmed over from liquid solder, make the solder joint of components and parts and wiring board dip scolding tin, wait for that straight cutting components and parts are fixed by solder cools.This method complex process involves great expense, and has can not welding or needing specially treated of sticking-element, easily cause the accumulation of scruff, affect welding quality bottom surface.
Through retrieval, find the technology of publication of following near field:
A kind of high-temperature crest soldering machine (publication number CN102151932B), comprise shell, thermal insulation layer, molten tin bath, controller, motor and transmission mechanism, thermal insulation layer and molten tin bath are all arranged in shell, crest generation trough is also installed in shell, temperature visits device and heat-generating pipe, crest generation trough is connected with molten tin bath, in crest generation trough, be provided with startup blade, the top of crest generation trough is connected with nozzle, starts blade and is connected with transmission mechanism; Temperature visits the inside that device is applied in thermal insulation layer, molten tin bath and crest generation trough, and one end that heat-generating pipe visits device with temperature is all connected with controller by control circuit.The utility model structure is simple, volume is little, the temperature in molten tin bath can be made significantly to be increased to 500 DEG C and to reach above, welding work pieces surface attachment can also be avoided to have residue, save the work of work and follow-up clean solder side tin face cleaned before each scolding tin, improve quality and the operating efficiency of product, and reduce the dependence of workman to qualification.
A kind of wave-soldering unit tin stove (notification number CN202344077U), comprise body of heater and be located at the flue in body of heater, spray tin passage is provided with in flue, spray tin passage is divided into the first spray tin passage and the second spray tin passage by baffle region, first spray tin passage is communicated with flue respectively with the second spray tin channel bottom and top is respectively equipped with the first spout and the second spout, in the first spray tin passage and the second spray tin passage, be respectively equipped with the first impeller and the second impeller.First spray tin passage and the second spray tin passage of wave-soldering unit tin stove of the present utility model pass through baffle interval, the spacing of two spouts is zero, and then is connected from two kinds of difform liquid tin crests that the first spout and the second spout produce and forms combination type crest.Gap cooling can not be produced in plate welding process between two spouts, second time welding can not be caused, and then improve welding quality.Two spouts are from tin face close together, and the time of contact of liquid tin and air is shorter, reduces the oxidation of tin, cost-saving.
Comparative analysis, there is bigger difference in above public technology, and the technical problem of its final result and the effect that finally reaches also exist larger difference compared with the technical scheme of present patent application.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides that a kind of structure is simple, design science, reliability are high, the automatic soldering device of the welder for circuit board of raising efficiency.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of automatic soldering device of welder for circuit board, it is characterized in that: comprise shell, conduit, manifold and nozzle, travelling arm lower end is fixed with the shell of welder, be coaxially installed with a conduit in the enclosure, the sealing of this conduit upper end is communicated with hot blast input unit, the connection of conduit lower seal is shaped with many manifolds, and shell lower surface is passed and the nozzle that is tightly connected in conduit lower end.
And the conduit top in shell is provided with a switch electromagnetic valve.
And, conduit is provided with a heater.
And nozzle and conduit axis have the angle of 0 °-90 °.
And nozzle, conduit and manifold all adopt stainless steel or titanium alloy to make.
And side is shaped with charging hole in the middle part of shell, outside this charging hole, be hinged with cover plate,
And hot blast input unit adopts adjustable speed blower fan or uses air compressor.
And, be made as inverted-cone shape tubular construction to the conduit between nozzle below heater.
And wall is coated with one deck heat insulating mattress in the enclosure.
Advantage of the present utility model and good effect are:
1, the nozzle of this device adopts the mode of high temperature ejection scolding tin, can by realizing the control to soldering tin amount to the flow-control of gases at high pressure, utilize the raw pressure differential of high-speed air flow movable property to spray scolding tin welding straight cutting components and parts, avoid scolding tin to stick on nozzle, promote welding quality.
2, the nozzle of this device and conduit axis have the angle of 0 °-90 °, are applicable to various different welding situation, applied widely.
3, this device welds one by one for solder joint, and scolding tin, along with gas jetting nozzle in conduit, is ejected on the solder joint of wiring board, can complete the welding of straight cutting components and parts after cooling, and welding effect is good.
4, the utility model uses pressure-air injection liquid solder can be evenly distributed on solder joint by scolding tin, owing to there being certain initial velocity, scolding tin can be made to fill up solder joint hole preferably, because welder does not touch wiring board and components and parts, so can not element be burnt out, also can not make wiring board temperature distortion, promote welding quality.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Attached number in the figure representative: 1 switch electromagnetic valve, 2 heaters, 3 conduits, 4 charging holes, 5 manifolds, 6 heat insulating mattress, 7 scolding tin, 8 shells, 9 nozzles, 10 straight cutting components and parts.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
An automatic soldering device for welder for circuit board, comprise shell 8, conduit 3, manifold 5 and nozzle 9, travelling arm lower end is fixed with the shell of welder, and shell is cylindrical tube structure, is loaded with and is molten into liquid scolding tin 7 in shell;
In the middle part of shell, side is shaped with charging hole 4, and charging hole, for dropping into tin material and observing tin amount, is hinged with cover plate outside this charging hole.
Be coaxially installed with a conduit in the enclosure, the sealing of this conduit upper end is communicated with the heating control apparatus be arranged in frame, and the heating-up temperature of the pressure-sustaining gas of control inputs conduit, makes the temperature of pressure-sustaining gas higher than scolding tin fusing point;
The generation of pressure-sustaining gas can adopt adjustable speed blower fan blow air to produce, or uses air compressor to produce, and enters conduit after the removal of impurity after filtration, and the pressure of pressure-sustaining gas should be standard atmospheric pressure, and pressure maximum is not more than three times of standard atmospheric pressures.
Conduit top in shell is provided with a switch electromagnetic valve 1, and this switch electromagnetic valve can control the unidirectional break-make of gas, also can regulate air quantity simultaneously;
The connection of conduit lower seal is shaped with many manifolds, and manifold apertures stretches into bottom the scolding tin of the fusing in shell downwards, for extracting scolding tin; Shell lower surface is passed and the nozzle that is tightly connected in conduit lower end, and nozzle and conduit axis have the angle of 0 °-90 °, are applicable to various different welding situation.
Nozzle, conduit and manifold all adopt stainless steel or other fusing points higher than scolding tin and metal material such as the titanium alloy etc. that under high temperature, free from admixture is separated out is made.
Conduit between manifold and switch electromagnetic valve is provided with a heater 2, heater can adopt the modes such as general heating wire heat gas and keep temperature constant by temperature sensor feedback, ensures the fusing point of gas temperature higher than scolding tin;
Heater fusing scolding tin also keeps temperature constant by temperature sensor feedback to temperature controller, temperature is controlled between 200 DEG C-450 DEG C and adjustable.
In order to increase gas flow rate, being made as inverted-cone shape tubular construction to the conduit between nozzle below heater, being beneficial to extraction liquid solder.
In order to ensure the utilization rate of scolding tin, shell lower end is made as the bucket shape structure of taper cone barrel, and is coated with one deck heat insulating mattress 6 at the outer casing inner wall of welder, ensures that furnace heat does not scatter and disappear, and also protects the object outside welder not to be subject to high temperature injury.
This welder designs according to bernoulli principle, when passing through the gas of HTHP in nozzle, there is pressure difference in liquid molten tin two ends, molten tin is drawn out of and enters nozzle, be injected on the components and parts solder joint of wiring board, can, by realizing the control to soldering tin amount to the flow-control of gases at high pressure, utilize the raw pressure differential of high-speed air flow movable property to spray scolding tin welding straight cutting components and parts 10.
Herein control circuit and program are not described in detail.
The method of work of this welder, concrete steps are:
Welder moves to reach the bond pad locations on corresponding line plate, and the pure and gas of constant pressure is by conduit under the control of switch electromagnetic valve, and gas temperature reaches or higher than the fusing point of scolding tin, ensure scolding tin conduit and injected time can not solidify;
Simultaneously, heater continuous heating to scolding tin fusing point and keep temperature, scolding tin is made to remain on the liquid state of fusing, the constant pressure air of high temperature and high speed passes through nozzle, now, liquid scolding tin is drawn into conduit from manifold, and scolding tin is along with gas jetting nozzle in conduit, be ejected on the solder joint of wiring board, after cooling, complete the welding of straight cutting components and parts;
According to the size of solder joint, by the break-make of switch electromagnetic valve to the control of gas flow, flow velocity, just can control the soldering tin amount sprayed, its correlation can be derived by Bernoulli equation, i.e. p1+1/2 ρ v12+ ρ gh1=p2+1/2 ρ v22+ ρ gh2.
After completing the welding of a solder joint, driven unit drives welder to move to a next bond pad locations and welds.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (9)
1. the automatic soldering device of a welder for circuit board, it is characterized in that: comprise shell, conduit, manifold and nozzle, travelling arm lower end is fixed with the shell of welder, be coaxially installed with a conduit in the enclosure, the sealing of this conduit upper end is communicated with hot blast input unit, the connection of conduit lower seal is shaped with many manifolds, and shell lower surface is passed and the nozzle that is tightly connected in conduit lower end.
2. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: the conduit top in shell is provided with a switch electromagnetic valve.
3. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: on conduit, be provided with a heater.
4. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: nozzle and conduit axis have the angle of 0 °-90 °.
5. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: nozzle, conduit and manifold all adopt stainless steel or titanium alloy to make.
6. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: in the middle part of shell, side is shaped with charging hole, is hinged with cover plate outside this charging hole.
7. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: hot blast input unit adopts adjustable speed blower fan or uses air compressor.
8. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: be made as inverted-cone shape tubular construction to the conduit between nozzle below heater.
9. the automatic soldering device of welder for circuit board according to claim 1, is characterized in that: wall is coated with one deck heat insulating mattress in the enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771869.6U CN205032825U (en) | 2015-10-08 | 2015-10-08 | Automatic welder of circuit board welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520771869.6U CN205032825U (en) | 2015-10-08 | 2015-10-08 | Automatic welder of circuit board welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205032825U true CN205032825U (en) | 2016-02-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520771869.6U Withdrawn - After Issue CN205032825U (en) | 2015-10-08 | 2015-10-08 | Automatic welder of circuit board welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205032825U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149719A (en) * | 2015-10-08 | 2015-12-16 | 天津电气科学研究院有限公司 | Automatic welding device and welding method of circuit board welding machine |
| CN106255341A (en) * | 2016-08-03 | 2016-12-21 | 苏州锡友微连电子科技有限公司 | A kind of tin cream spray printing nozzle blocks up exchange device |
| CN110091027A (en) * | 2018-01-31 | 2019-08-06 | 镭射沃激光科技(深圳)有限公司 | Nozzle |
| CN110756936A (en) * | 2019-11-25 | 2020-02-07 | 歌尔股份有限公司 | Method and device for welding charging head, earphone and storage medium |
| CN116275352A (en) * | 2023-05-22 | 2023-06-23 | 云泰智能科技(天津)有限责任公司 | Welding device for printed circuit board |
-
2015
- 2015-10-08 CN CN201520771869.6U patent/CN205032825U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149719A (en) * | 2015-10-08 | 2015-12-16 | 天津电气科学研究院有限公司 | Automatic welding device and welding method of circuit board welding machine |
| CN105149719B (en) * | 2015-10-08 | 2017-03-22 | 天津电气科学研究院有限公司 | Automatic welding device and welding method of circuit board welding machine |
| CN106255341A (en) * | 2016-08-03 | 2016-12-21 | 苏州锡友微连电子科技有限公司 | A kind of tin cream spray printing nozzle blocks up exchange device |
| CN106255341B (en) * | 2016-08-03 | 2018-12-11 | 苏州锡友微连电子科技有限公司 | A kind of stifled exchange device of tin cream spray printing nozzle |
| CN110091027A (en) * | 2018-01-31 | 2019-08-06 | 镭射沃激光科技(深圳)有限公司 | Nozzle |
| CN110756936A (en) * | 2019-11-25 | 2020-02-07 | 歌尔股份有限公司 | Method and device for welding charging head, earphone and storage medium |
| CN116275352A (en) * | 2023-05-22 | 2023-06-23 | 云泰智能科技(天津)有限责任公司 | Welding device for printed circuit board |
| CN116275352B (en) * | 2023-05-22 | 2023-07-21 | 云泰智能科技(天津)有限责任公司 | Welding device for printed circuit board |
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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: 20160217 Effective date of abandoning: 20170322 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |