CN107322118A - A kind of soldering corollary apparatus and method for welding - Google Patents
A kind of soldering corollary apparatus and method for welding Download PDFInfo
- Publication number
- CN107322118A CN107322118A CN201710453325.9A CN201710453325A CN107322118A CN 107322118 A CN107322118 A CN 107322118A CN 201710453325 A CN201710453325 A CN 201710453325A CN 107322118 A CN107322118 A CN 107322118A
- Authority
- CN
- China
- Prior art keywords
- soldering
- solder
- welding
- corollary apparatus
- syringe needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/203—Fluxing, i.e. applying flux onto surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention provides a kind of soldering corollary apparatus and method for welding;The corollary apparatus includes soldering pencil and heat-insulating base, and soldering pencil includes solder cavity, piston, syringe needle, zone of heating, heat-insulation layer.Methods described includes solder being placed in the solder cavity of soldering pencil, and heating keeps molten state, solder is flow to by syringe needle by weldering position by the promotion of piston, realizes welding.The present invention is without solder is pre-machined, no returning charge, and anaerobic slugging is generated, and greatly reduces the production cost of solder, and welding process is without splashing, non smoke, and postwelding is remained less, reliability is high.The soldering pencil can also be fixed on welding stage with hand-held, for manual welding, set by program and realized automatic welding, and can be according to the precision of welding position, the syringe needle of selection matching internal diameter, using flexible, conveniently.
Description
Technical field
The invention belongs to electronic product field of welding devices, and in particular to a kind of soldering corollary apparatus and method for welding;With
Production, maintenance in electronic product.
Background technology
The welding of electronic product is to be connected together by electronic component and by weldering position using solder, conventional welding procedure
Connect and weld tabs welding including surface mount (SMT), wave-soldering, tin wire bond.In addition to the tin bar of wave-soldering, the solder of other techniques
It is both needed to that solder is fabricated to certain form, such as powder, silk, piece in advance, and for the weldering of different type or specification electronic product
Connect, the solder of every kind of form also needs to be prepared into different specifications, and production cost is higher.The tin cream of SMT techniques contains about
Substantial amounts of volatile matter is formed in 10wt%~15wt% scaling powders, welding process, environment is polluted, postwelding residual is more, influence production
Product reliability.The tin silk of tin silk welding procedure contains 1wt%~4wt% welding agent, and welding process produces substantial amounts of smog and flown
Splash, cause environmental pollution, influence product reliability.During solder wave process, the tin bar of melting has 20%~30% meeting by oxygen
Scruff is turned to, a large amount of wastes are caused.
The content of the invention
It is of the prior art above-mentioned to solve it is an object of the invention to provide a kind of soldering corollary apparatus and method for welding
Problem.Using corollary apparatus of the present invention and method for welding without solder is pre-machined into certain form, and solder without
Aoxidize slagging generation.
One of to achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of soldering corollary apparatus, the soldering corollary apparatus includes soldering pencil and heat-insulating base, and the soldering pencil includes
The piston for promoting solder outflow is provided with solder cavity with syringe shape, solder cavity, one end of solder cavity is provided with
Syringe needle, the inwall of solder cavity, which is provided with outside soldering pencil zone of heating, soldering pencil zone of heating, is provided with soldering pencil heat-insulation layer, the guarantor
There is warm base the groove being adapted to syringe needle to be used to house syringe needle, and the inwall of the groove is provided with heat-insulating base zone of heating, institute
State and heat-insulating base heat-insulation layer is provided with outside heat-insulating base zone of heating.
Further, the soldering corollary apparatus also includes Welding compound spraying coater.
Further, the piston passes through air pressure or screw drive.
Further, the syringe needle is detachably connected with solder cavity.
Further, the corollary apparatus has the syringe needle of a variety of internal diameter sizes, can be according to the size of part to be welded more
The syringe needle of internal diameter is answered in commutation.
To achieve the above object two, the technical solution adopted by the present invention is as follows:
A kind of method that soldering is carried out using above-mentioned soldering corollary apparatus, is comprised the following steps:
S1:By first welding workpiece by the pretreatment at weldering position, brazing conditions are complied with;
S2:Solder is placed in solder cavity;
S3:The solder is heated to molten state by soldering pencil zone of heating, and is incubated;
S4:Drive the piston to promote the solder after melting to by weldering position, implement welding;
S5:First welding workpiece welded gaps or first welding workpiece are completed after welding, by soldering pencil
It is positioned on heat-insulating base, and starts heat-insulating base zone of heating, keeps solder in syringe not solidify;
S6:S4 steps are repeated to continue the welding of unit one or repeat the weldering that S1-S4 steps carry out second workpiece
Connect.
Further, the solder is added in solder cavity with block, or advance be molten into after liquid is then added to solder
In cavity.
Further, methods described also includes between S3 steps and S4 steps:S3’:Using passing through Welding compound spraying coater
To scaling powder is preliminarily sprayed by weldering position.
Further, by Welding compound spraying coater, synchronously spraying helps weldering while the S4 steps of methods described are included in welding
Agent.
In use, piston can be promoted said apparatus by air pressure or screw rod, and a level pressure is applied to liquid solder
Power, makes solder be flowed out from syringe needle.To prevent liquid solder from being flowed out naturally from syringe needle, when welding completes to stop pressing to solder,
Back pressure can be set.
The syringe needle of soldering pencil of the present invention selects high temperature resistant material, and syringe needle internal diameter is according to by the size selection at weldering position.
In welding process, syringe needle may also function as the effect preheated to welding position.
Soldering pencil of the present invention using gap or change workpiece when, syringe needle position should be inserted on thermal insulating seat, it is to avoid
The solder solidification at syringe needle position, causes syringe needle to block.
The method of the present invention has the advantages that:
Using soldering corollary apparatus of the present invention and method for welding, without solder is pre-machined, no returning charge, and anaerobic slugging
Generation, greatly reduces the production cost of solder, and can avoid tin cream or tin silk a large amount of residuals for helping weldering component to cause used
The problems such as many, smog, splashing, environmental protection, reliability are high.Soldering pencil of the present invention can be with hand-held, can also for manual welding
It is fixed on welding stage, is set by program and realize automatic welding, and can be selected matching according to the precision of welding position
The syringe needle of internal diameter, using flexible, conveniently.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings:
Fig. 1 is the soldering pencil schematic diagram of soldering corollary apparatus of the present invention;
Fig. 2 is the thermal insulating seat schematic diagram of soldering corollary apparatus of the present invention, and wherein a is profile, and b is top view;
Fig. 3 is the soldering pencil schematic diagram of 1-2 of embodiment of the present invention soldering corollary apparatus;
Fig. 4 is the soldering pencil schematic diagram of the soldering corollary apparatus of the embodiment of the present invention 3;
Fig. 5 is the soldering pencil schematic diagram of the soldering corollary apparatus of the embodiment of the present invention 4.
Embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.Conversely it is able to be best understood from the disclosure there is provided these embodiments, and can be by this public affairs
The scope opened completely convey to those skilled in the art.
Reference picture 1-5, the structure of soldering corollary apparatus of the present invention is:The soldering corollary apparatus include soldering pencil and
Heat-insulating base, the soldering pencil includes being equipped with solder 6, solder cavity in the solder cavity 1 with syringe shape, solder cavity
The piston 2 for promoting solder outflow is provided with 1, one end of solder cavity 1 is provided with syringe needle 3, and the inwall of solder cavity 1 is provided with pricker
A zone of heating 4 is welded, the outside of soldering pencil zone of heating 4 is provided with soldering pencil heat-insulation layer 5, and the heat-insulating base has what is be adapted to syringe needle 3
Groove is used to house syringe needle 3, and the inwall of the groove is provided with heat-insulating base zone of heating 7, the peripheral hardware of heat-insulating base zone of heating 7
It is equipped with heat-insulating base heat-insulation layer 8.The soldering corollary apparatus also includes Welding compound spraying coater 9.
Specific welding method is explained by following embodiments:
Embodiment 1
Soldering pencil structure is as shown in figure 3, syringe needle internal diameter 1.0mm used.SnPb37 solders 200g is added into 1 solder chamber
In body, being heated to 250 DEG C of insulations makes solder keep molten state, scaling powder is preliminarily sprayed in board pads position, by the pin of soldering pencil 3
Head is placed into pad locations preheating pad, sets air pressure as 20kPa, starts air pressure and controls the promotion of 2 pistons solder is passed through 3 pins
Head is flow to by weldering position, realizes welding, and air pressure vacuum back pressure -0.1kPa is controlled after the completion of welding, and solder stops discharge, and welding stops
Only.The present embodiment soldering pencil can be used for manual repair welds.
Embodiment 2
Soldering pencil structure is as shown in figure 3, syringe needle internal diameter 0.8mm used.SnCu0.7 solder 500g are taken, soldering is added
In 1 solder cavity of pen, soldering pencil is installed on automatic welding positioner, 300 DEG C of insulations make solder keep molten state, setting
Air pressure is 25kPa, is 0.2s to pad preheating time, and solder preset time is 0.2s, air pressure vacuum back pressure -0.2kPa.To whole
Block board pads position carries out that scaling powder is preliminarily sprayed, and starts automatic welding positioner, starts welding.The present embodiment soldering pencil
Suitable for monoblock circuit board automatic welding.
Embodiment 3
Soldering pencil structure and frock are as shown in figure 4, syringe needle internal diameter 0.6mm used.Soldering pencil is installed into automatic welding to determine
On the device of position, while the synchronous spray equipment of fixed scaling powder.SnAg0.3Cu0.7 solder 500g are taken, the pricker of soldering pencil 1 is added
Expect in cavity, being heated to 280 DEG C of insulations makes solder keep molten state, is arranged on soldering pencil syringe needle and board pads position is preheated
When synchronously spray scaling powder 0.2s, it is 25kPa to set soldering pencil to be fed air pressure, and soldering pencil capillary cephalic disc preheating time is 0.2s,
Solder preset time is 0.2s, air pressure vacuum back pressure -0.2Kpa, starts automatic soldering device and starts welding.The present embodiment soldering
Pen is applied to circuit board automatic welding.
Embodiment 4
Soldering pencil structure and solder supply drive device as shown in figure 5, syringe needle internal diameter 0.1mm used.Take
SnAg3.0Cu0.5 solder 200g, are added in the solder cavity of soldering pencil 1, and being heated to 350 DEG C of insulations makes solder keep melting
State, scaling powder is preliminarily sprayed to pad, and the syringe needle of soldering pencil 3 is placed into pad locations preheating pad, and piston driving uses micro- screw rod
Motor control, dragging soldering pencil control syringe needle translational speed realizes welding, after the completion of welding, stops micro- screw motor.This implementation
Example soldering pencil is applied to thin space pad automatic welding.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (9)
1. a kind of soldering corollary apparatus, it is characterised in that the soldering corollary apparatus includes soldering pencil and heat-insulating base, the pricker
Welding pen includes being provided with the piston (2) for promoting solder outflow, pricker in the solder cavity (1) with syringe shape, solder cavity (1)
Expect that one end of cavity (1) is provided with syringe needle (3), the inwall of solder cavity (1) is provided with soldering pencil zone of heating (4), soldering pencil heating
Soldering pencil heat-insulation layer (5) is provided with outside layer (4), there is the heat-insulating base groove being adapted to syringe needle (3) to be used to house syringe needle
(3), the inwall of the groove, which is provided with outside heat-insulating base zone of heating (7), the heat-insulating base zone of heating (7), is provided with insulation bottom
Seat heat-insulation layer (8).
2. soldering corollary apparatus as claimed in claim 1, it is characterised in that the soldering corollary apparatus also includes scaling powder and sprayed
Coating device.
3. soldering corollary apparatus as claimed in claim 1, it is characterised in that the piston (2) passes through air pressure or screw drive.
4. soldering corollary apparatus as claimed in claim 1, it is characterised in that the syringe needle (3) is detachable with solder cavity (1)
Connection.
5. soldering corollary apparatus as claimed in claim 4, it is characterised in that the corollary apparatus has a variety of internal diameter sizes
Syringe needle (3), can change the syringe needle of corresponding internal diameter according to the size of part to be welded.
6. a kind of method that soldering corollary apparatus using as described in claim any one of 1-5 carries out soldering, it is characterised in that
Comprise the following steps:
S1:By first welding workpiece by the pretreatment at weldering position, brazing conditions are complied with;
S2:Solder is placed in solder cavity (1);
S3:The solder is heated to molten state by soldering pencil zone of heating (4), and is incubated;
S4:Drive the piston (2) to promote the solder after melting to by weldering position, implement welding;
S5:First welding workpiece welded gaps or first welding workpiece are completed after welding, and soldering pencil is placed
In on heat-insulating base, and start heat-insulating base zone of heating (7), keep solder in syringe not solidify;
S6:S4 steps are repeated to continue the welding of unit one or repeat the welding that S1-S4 steps carry out second workpiece.
7. method according to claim 6, it is characterised in that
The solder is added in solder cavity (1) with block, or advance be molten into after liquid is then added to solder cavity (1)
In.
8. method according to claim 6, it is characterised in that methods described also includes between S3 steps and S4 steps:
S3’:Scaling powder is preliminarily sprayed to being welded position using by Welding compound spraying coater.
9. method according to claim 6, it is characterised in that the S4 steps of methods described pass through while being included in welding
Welding compound spraying coater synchronously sprays scaling powder.
Priority Applications (1)
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CN201710453325.9A CN107322118A (en) | 2017-06-15 | 2017-06-15 | A kind of soldering corollary apparatus and method for welding |
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CN201710453325.9A CN107322118A (en) | 2017-06-15 | 2017-06-15 | A kind of soldering corollary apparatus and method for welding |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020234851A1 (en) * | 2019-05-23 | 2020-11-26 | Montoya Rodriguez Maria Angelica | Tin-injection electronic soldering iron |
CN112643165A (en) * | 2020-12-29 | 2021-04-13 | 深圳市福英达工业技术有限公司 | Device for melting welding material and method for establishing electronic connection |
CN113145972A (en) * | 2021-01-25 | 2021-07-23 | 上海磬采电力科技开发有限公司 | Semiconductor device solder spraying device |
CN116441661A (en) * | 2023-05-15 | 2023-07-18 | 西门子能源燃气轮机部件(江苏)有限公司 | Apparatus and method for applying braze to turbine blades prior to vacuum brazing |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS611470A (en) * | 1984-06-13 | 1986-01-07 | Sumihiko Kawashima | Injection type solder iron |
CN2040830U (en) * | 1987-03-25 | 1989-07-12 | 何康政 | Injection type electric iron |
CN2452669Y (en) * | 2000-12-13 | 2001-10-10 | 陈灿强 | Electric soldering iron protection means |
CN2865966Y (en) * | 2005-06-20 | 2007-02-07 | 田耀坤 | Hand brazing welding gun |
CN201900351U (en) * | 2010-07-22 | 2011-07-20 | 刘祉阳 | Pneumatic environmentally-friendly tin soldering device |
CN103978279A (en) * | 2014-04-14 | 2014-08-13 | 兰兴欣 | Tin-dropping electric soldering iron |
CN104070257A (en) * | 2014-06-23 | 2014-10-01 | 钱月珍 | Pneumatic electric soldering iron |
CN204486973U (en) * | 2015-04-07 | 2015-07-22 | 哈尔滨工业大学(威海) | Electric iron |
CN204545644U (en) * | 2015-02-12 | 2015-08-12 | 国家电网公司 | Electrician is with storing tin formula tin welding torch |
-
2017
- 2017-06-15 CN CN201710453325.9A patent/CN107322118A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS611470A (en) * | 1984-06-13 | 1986-01-07 | Sumihiko Kawashima | Injection type solder iron |
CN2040830U (en) * | 1987-03-25 | 1989-07-12 | 何康政 | Injection type electric iron |
CN2452669Y (en) * | 2000-12-13 | 2001-10-10 | 陈灿强 | Electric soldering iron protection means |
CN2865966Y (en) * | 2005-06-20 | 2007-02-07 | 田耀坤 | Hand brazing welding gun |
CN201900351U (en) * | 2010-07-22 | 2011-07-20 | 刘祉阳 | Pneumatic environmentally-friendly tin soldering device |
CN103978279A (en) * | 2014-04-14 | 2014-08-13 | 兰兴欣 | Tin-dropping electric soldering iron |
CN104070257A (en) * | 2014-06-23 | 2014-10-01 | 钱月珍 | Pneumatic electric soldering iron |
CN204545644U (en) * | 2015-02-12 | 2015-08-12 | 国家电网公司 | Electrician is with storing tin formula tin welding torch |
CN204486973U (en) * | 2015-04-07 | 2015-07-22 | 哈尔滨工业大学(威海) | Electric iron |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020234851A1 (en) * | 2019-05-23 | 2020-11-26 | Montoya Rodriguez Maria Angelica | Tin-injection electronic soldering iron |
CN112643165A (en) * | 2020-12-29 | 2021-04-13 | 深圳市福英达工业技术有限公司 | Device for melting welding material and method for establishing electronic connection |
CN113145972A (en) * | 2021-01-25 | 2021-07-23 | 上海磬采电力科技开发有限公司 | Semiconductor device solder spraying device |
CN116441661A (en) * | 2023-05-15 | 2023-07-18 | 西门子能源燃气轮机部件(江苏)有限公司 | Apparatus and method for applying braze to turbine blades prior to vacuum brazing |
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