CN113664322A - Non-contact welding flux delivery method - Google Patents
Non-contact welding flux delivery method Download PDFInfo
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- CN113664322A CN113664322A CN202110953365.6A CN202110953365A CN113664322A CN 113664322 A CN113664322 A CN 113664322A CN 202110953365 A CN202110953365 A CN 202110953365A CN 113664322 A CN113664322 A CN 113664322A
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- China
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- solder
- welding wire
- welding
- guide post
- curling
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- 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
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/063—Solder feeding devices for wire feeding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a non-contact welding flux delivery method, wherein welding flux adopts welding wires, and the delivery method comprises the following steps: the method comprises the following steps that firstly, solder is preformed, a welding wire is curled into a spiral shape through a curling device, the welding wire is wound on a guide post matched with the thickness of a pin to be welded in the curling process, and a sliding gap is formed between the welding wire and the guide post; transferring materials, namely moving the guide post above the welding area, wherein the guide post is arranged opposite to the contact pin; and step three, discharging, namely cutting off the welding wire by using a cutter of the curling forming device, and sliding the spiral welding wire onto the contact pin along the guide column to finish welding wire feeding. The solder delivery method comprises three steps of solder preforming, material transferring and material placing, the process of re-identifying the preformed solder is omitted, the defect that the special-shaped customized solder is difficult to deliver is simplified, and the characteristics of stable feeding quantity of the preformed solder, difficult solder explosion and high welding yield are reserved.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a non-contact welding flux delivery method.
Background
With the continuous popularization of intelligent equipment, the demand for high-strength welding spots is increasing. In the field of automotive electronics, there are many applications in the field of consumer electronics. Laser welding is in the non-contact special welding field, and the practical application of the laser welding is more and more extensive.
With the popularization and application of non-contact special welding, the existing tin material feeding mode can not meet the requirements of various special welding. The traditional feeding modes are generally three modes, namely tin wire delivery, tin ball spraying and tin paste spot coating. These several approaches each have advantages, as well as the presence of significantly shorter plates. The welding requirements cannot be met for workpieces with certain special welding requirements.
Disclosure of Invention
Aiming at the technical problems, the invention provides a non-contact welding solder delivery method which comprises three steps of solder preforming, material transferring and material placing, so that the process of re-identifying the preformed solder is omitted, the defect that the special-shaped customized solder is difficult to deliver is simplified, and the characteristics of stable feeding quantity, difficult explosion welding and high welding yield of the preformed solder are reserved.
A non-contact welding solder delivery method adopts welding wires, and comprises the following specific delivery methods:
the method comprises the following steps that firstly, solder is preformed, a welding wire is curled into a spiral shape through a curling device, the welding wire is wound on a guide post matched with the thickness of a pin to be welded in the curling process, and a sliding gap is formed between the welding wire and the guide post;
transferring materials, namely moving the guide post above the welding area, wherein the guide post is arranged opposite to the contact pin;
and step three, discharging, namely cutting off the welding wire by using a cutter of the curling forming device, and sliding the spiral welding wire onto the contact pin along the guide column to finish welding wire feeding.
Preferably, in the first step, the solder molding shape may be any one of a spiral tower shape, a straight column type spiral shape, and a waisted type spiral shape.
Preferably, in the second step, the curled welding wire is transferred integrally with the welding wire material.
Preferably, the guide post is coated with a soldering assistant liquid.
The invention has the beneficial effects that:
1. the solder is formed immediately before welding, so that the welding wire is convenient to cut off and put in later period.
2. The solder is delivered immediately after being formed, so that the process of re-identifying and placing the prefabricated solder is omitted, and the defect that the special-shaped customized solder is not easy to deliver is overcome. Meanwhile, the characteristics of stable feeding quantity of the preformed solder, difficult tin explosion and high welding yield are also reserved.
Drawings
Fig. 1 is a solder molding and routing demonstration of the present invention.
Fig. 2 is a schematic view of a waisted spiral solder structure.
Detailed Description
The technical scheme of the invention is clearly and completely described below by combining the attached drawings of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1, the solder adopts a welding wire, and the specific delivery method is as follows:
the method comprises the following steps that firstly, solder is preformed, a welding wire is curled into a spiral shape through a curling device, the welding wire is wound on a guide post matched with the thickness of a pin to be welded in the curling process, and a sliding gap is formed between the welding wire and the guide post;
transferring materials, namely moving the guide post above the welding area, wherein the guide post is arranged opposite to the contact pin;
and step three, discharging, namely cutting off the welding wire by using a cutter of the curling forming device, and sliding the spiral welding wire onto the contact pin along the guide column to finish welding wire feeding.
In this embodiment, in the first step, the solder forming shape may be any one of a spiral tower shape, a straight column spiral shape, and a waisted spiral shape. The structure of the waisted spiral solder is shown in fig. 2.
In this embodiment, in the second step, the curled wire is transferred integrally with the wire material.
In this embodiment, the guiding column is coated with a soldering flux.
The solder delivery is characterized in that: 1. the solder is formed immediately before welding, so that the welding wire is convenient to cut off and place at the later stage; 2. the solder is delivered immediately after being formed, so that the process of re-identifying and placing the prefabricated solder is omitted, the defect that the special-shaped customized solder is difficult to deliver is simplified, and the characteristics of stable feeding quantity, difficult tin explosion and high welding yield of the preformed solder are reserved.
The pin welding improves the success rate of one-time welding in the welding process by improving the delivery mode of the welding flux. In the traditional tin wire delivery and insertion welding process, the one-time welding qualification rate is generally 80-85%, and the one-time welding qualification rate of the high-end equipment which is particularly stable is close to 90%. By improving the delivery mode of the solder, the one-time qualification rate of pin welding can be improved to more than 95%, and the double-side penetration welding rate of the solder can reach more than 85%. The double-sided penetration welding rate of the traditional feeding mode is basically not more than 50%, and the phenomena of false welding, empty welding, tin piling, tin frying or tin shortage are particularly easy to occur.
In this embodiment, the welding wire curling device is a conventional technique in the field, and all curling devices capable of achieving the welding wire curling function of the present application are within the protection scope of the present application, and the guide column is a conventional columnar structure.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A non-contact welding solder delivery method, the solder adopts welding wire, characterized by that: the specific delivery method comprises the following steps:
the method comprises the following steps that firstly, solder is preformed, a welding wire is curled into a spiral shape through a curling device, the welding wire is wound on a guide post matched with the thickness of a pin to be welded in the curling process, and a sliding gap is formed between the welding wire and the guide post;
transferring materials, namely moving the guide post above the welding area, wherein the guide post is arranged opposite to the contact pin;
and step three, discharging, namely cutting off the welding wire by using a cutter of the curling forming device, and sliding the spiral welding wire onto the contact pin along the guide column to finish welding wire feeding.
2. The method of contactless solder delivery of claim 1, wherein: in the first step, the solder forming shape may be any one of a spiral tower shape, a straight column type spiral shape and a waisted type spiral shape.
3. The method of contactless solder delivery of claim 1, wherein: in the second step, the curled welding wire and the welding wire raw material are integrally transferred.
4. The method of contactless solder delivery of claim 1, wherein: and the guide column is coated with a soldering assistant liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953365.6A CN113664322B (en) | 2021-08-19 | 2021-08-19 | Non-contact welding flux delivery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110953365.6A CN113664322B (en) | 2021-08-19 | 2021-08-19 | Non-contact welding flux delivery method |
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| Publication Number | Publication Date |
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| CN113664322A true CN113664322A (en) | 2021-11-19 |
| CN113664322B CN113664322B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110953365.6A Active CN113664322B (en) | 2021-08-19 | 2021-08-19 | Non-contact welding flux delivery method |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429682A (en) * | 2001-12-30 | 2003-07-16 | 华为技术有限公司 | A method of soldering pins |
| CN2569522Y (en) * | 2002-08-28 | 2003-08-27 | 华为技术有限公司 | Tool for producing welding wire ring |
| CN101693335A (en) * | 2009-10-13 | 2010-04-14 | 江苏达胜加速器制造有限公司 | Method for processing annular filler metal sheet |
| KR20120042392A (en) * | 2010-10-25 | 2012-05-03 | 원종암 | Manufacturing methods for spiral type heat-exchanger |
| CN102513631A (en) * | 2011-11-18 | 2012-06-27 | 南京理工大学 | Induction heating stud soldering method for aluminum-steel stud |
| CN105397327A (en) * | 2015-12-16 | 2016-03-16 | 郑州机械研究所 | Lamellar brazing filler metal ring for thin-wall drill and manufacturing method of lamellar brazing filler metal ring |
| CN111069729A (en) * | 2019-12-16 | 2020-04-28 | 京信通信技术(广州)有限公司 | Resonance column welding method |
| CN210967758U (en) * | 2019-10-31 | 2020-07-10 | 江门市旭德电机有限公司 | Circlip machine |
| CN111490429A (en) * | 2020-06-01 | 2020-08-04 | 陕西图灵电子科技有限公司 | Prefabricated welding ring feeding device for contact pin of connector |
| CN212496425U (en) * | 2020-07-03 | 2021-02-09 | 周生生珠宝(佛山)有限公司 | Ear nail welding machine |
-
2021
- 2021-08-19 CN CN202110953365.6A patent/CN113664322B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429682A (en) * | 2001-12-30 | 2003-07-16 | 华为技术有限公司 | A method of soldering pins |
| CN2569522Y (en) * | 2002-08-28 | 2003-08-27 | 华为技术有限公司 | Tool for producing welding wire ring |
| CN101693335A (en) * | 2009-10-13 | 2010-04-14 | 江苏达胜加速器制造有限公司 | Method for processing annular filler metal sheet |
| KR20120042392A (en) * | 2010-10-25 | 2012-05-03 | 원종암 | Manufacturing methods for spiral type heat-exchanger |
| CN102513631A (en) * | 2011-11-18 | 2012-06-27 | 南京理工大学 | Induction heating stud soldering method for aluminum-steel stud |
| CN105397327A (en) * | 2015-12-16 | 2016-03-16 | 郑州机械研究所 | Lamellar brazing filler metal ring for thin-wall drill and manufacturing method of lamellar brazing filler metal ring |
| CN210967758U (en) * | 2019-10-31 | 2020-07-10 | 江门市旭德电机有限公司 | Circlip machine |
| CN111069729A (en) * | 2019-12-16 | 2020-04-28 | 京信通信技术(广州)有限公司 | Resonance column welding method |
| CN111490429A (en) * | 2020-06-01 | 2020-08-04 | 陕西图灵电子科技有限公司 | Prefabricated welding ring feeding device for contact pin of connector |
| CN212496425U (en) * | 2020-07-03 | 2021-02-09 | 周生生珠宝(佛山)有限公司 | Ear nail welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113664322B (en) | 2023-01-24 |
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