CN107617816A - Soft board pulse thermal compression welding method - Google Patents
Soft board pulse thermal compression welding method Download PDFInfo
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- CN107617816A CN107617816A CN201711044334.9A CN201711044334A CN107617816A CN 107617816 A CN107617816 A CN 107617816A CN 201711044334 A CN201711044334 A CN 201711044334A CN 107617816 A CN107617816 A CN 107617816A
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- Prior art keywords
- pcb board
- welding
- fpc plates
- fpc
- board
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000006835 compression Effects 0.000 title claims abstract description 23
- 238000007906 compression Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000002203 pretreatment Methods 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 32
- 239000000956 alloy Substances 0.000 claims description 32
- 238000007731 hot pressing Methods 0.000 claims description 22
- 229910000679 solder Inorganic materials 0.000 claims description 8
- 230000004886 head movement Effects 0.000 claims description 7
- 230000004927 fusion Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 14
- 210000002683 foot Anatomy 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Combinations Of Printed Boards (AREA)
Abstract
The present invention discloses a kind of soft board pulse thermal compression welding method, including：Pre-treatment step, prepare a FPC plates and a pcb board to be processed；Fixing step, FPC plates and pcb board, and the top for making pcb board be located at FPC are fixed respectively；Calibration steps, calibrates the position of FPC plates and pcb board, and FPC plates is abutted with pcb board, wherein, the welding foot part of the FPC plates stretches out pcb board and bends the pad close to pcb board；Welding step, the welding foot that pcb board is partly stretched out in FPC plates is connected on the pad of pcb board by pulse thermocompression bonding using plumb joint；Cooling step, FPC plates and pcb board after cooling welding, obtains finished product.The welding parameter of technical scheme is stable, and the FPC plates after welding are more smooth, without dragging tin and tin point to produce, has preferable welding stability compared to human weld, and can improve welding efficiency.
Description
Technical field
The present invention relates to soft board welding technology field, more particularly to a kind of soft board pulse thermal compression welding method.
Background technology
At present, in soft board welding technique, because part comparison is fragile, and part fixes the factors such as inconvenience, adopts mostly
The mode welded by hand carries out operation.And conventional human weld is often limited to tin amount, tin point height, flatiron temperature etc.
Tin point problem is caused to influence quality.Specifically, differing because worker welds control time, overlong time easily scorches damage
FPC, the time is too short, rosin joint easily occurs, plus welding tin amount disunity, and easily occur being uneven and occur tin point
The problems such as, govern the quality of production and production efficiency of product.
In view of this, it is necessary to which current soft board thermal compression welding technology is further improved for proposition.
The content of the invention
To solve an above-mentioned at least technical problem, the main object of the present invention is to provide a kind of soft board pulse thermal compression welding side
Method.
To achieve the above object, one aspect of the present invention is：A kind of soft board pulse thermal compression welding side is provided
Method, methods described include：
Pre-treatment step, prepare a FPC plates and a pcb board to be processed, wherein, the FPC plates are formed with welding foot, institute
The hole position of pcb board can partly be stretched out formed with hole position, the welding foot by stating pcb board；
Fixing step, FPC plates and pcb board, and the top for making pcb board be located at FPC are fixed respectively；
Calibration steps, calibrates the position of FPC plates and pcb board, and FPC plates is abutted with pcb board, wherein, the FPC plates
Welding foot part stretches out pcb board and bends the pad close to pcb board；
Welding step, the welding foot that pcb board is partly stretched out in FPC plates is connected on by pulse thermocompression bonding using plumb joint
On the pad of pcb board；
Cooling step, FPC plates and pcb board after cooling welding, obtains finished product.
Wherein, the fixing step, is specifically included：
FPC plates are fixed using FPC plates stationary fixture, pcb board are fixed using pcb board stationary fixture, by the FPC plates after fixation
And pcb board is put into mould, wherein, the FPC plates stationary fixture is located at the top of pcb board stationary fixture.
Wherein, the calibration steps, is specifically included：
FPC plates and pcb board are individually fixed in fine adjustment stage, adjusted respectively by the servomotor in fine adjustment stage
The horizontal level of FPC plates stationary fixture and pcb board stationary fixture, to calibrate FPC plates and pcb board.
Wherein, the plumb joint is alloy thermal head,
Also include before the step of welding step：
Preheating step, control pulse to carry out the pre-heat treatment to alloy thermal head using PLC, alloy thermal head is preheated to
Welding job temperature.
Wherein, also include after the preheating step：
Alloy thermal head aligns step, specifically includes,
Utilize the real time position of camera collection alloy thermal head movement；
The real time position of alloy thermal head is projeced on display screen, and welding post is preset with display screen；
Alloy thermal head is moved to welding post.
Wherein, the real time position by alloy thermal head is projeced into before the step on display screen, in addition to：
Amplify the coordinate of the real time position of alloy thermal head movement.
Wherein, the hot pressing temperature of alloy thermal head is 410-450 DEG C, hot pressing time 8-12S in the welding step, heat
It is 0.2-0.5MPA to calm the anger.
Wherein, in the welding step between the welding foot of FPC plates and the pad of pcb board formed with solder joint, the solder joint
Height be 0.2-0.3mm.
Wherein, the chilling temperature of FPC plates and pcb board is 140-160 DEG C in the cooling step, makes welding fusion in PCB
On the pad of plate.
Technical scheme includes pre-treatment step, fixing step, calibration steps, welding step and cooling step,
Calibrated FPC plates and pcb board are welded in a manner of pulse thermal compression welding by using plumb joint, compared to manual welding, weldering
Termination process need not add tin, and hot pressing time, pressure, hot pressing temperature are stable, and the FPC plates after welding are more smooth, and nothing drags tin and tin
Point produces, and has preferable welding stability compared to human weld, and can improve welding efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 shows the method flow diagram of one embodiment of the invention soft board pulse thermal compression welding method；
Fig. 2 shows the method block diagram of another embodiment of the present invention soft board pulse thermal compression welding method.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that the description for being related to " first ", " second " etc. in the present invention be only used for describe purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme
Occur conflicting or will be understood that the combination of this technical scheme is not present when can not realize, also not in the guarantor of application claims
Within the scope of shield.
Fig. 1 shows the method flow diagram of one embodiment of the invention soft board pulse thermal compression welding method；Fig. 1 is refer to,
In the embodiment of the present invention, the soft board pulse thermal compression welding method, specifically include：
Step S10, pre-treatment step, prepare a FPC plates and a pcb board to be processed, wherein, the FPC plates formed with
Welding foot, the pcb board can partly stretch out the hole position of pcb board formed with hole position, the welding foot；The FPC plates are flexible circuit
Plate, three sides of FPC plates are respectively formed with least two welding foots, and welding foot has preferably around folding endurance.
Step S20, fixing step, FPC plates and pcb board, and the top for making pcb board be located at FPC are fixed respectively；The fixation walks
Suddenly specifically, fixing FPC plates using FPC plates stationary fixture, pcb board is fixed using pcb board stationary fixture, by the FPC after fixation
Plate and pcb board are put into mould, wherein, the FPC plates stationary fixture is located at the top of pcb board stationary fixture.In this way, welding
When can front by the direct hot pressing of welding foot on pcb board, convenient welding.
Step S30, calibration steps, calibrates the position of FPC plates and pcb board, and FPC plates is abutted with pcb board, wherein, institute
The welding foot part for stating FPC plates stretches out pcb board and bends the pad close to pcb board；The calibration steps, specifically, by FPC plates
And pcb board is individually fixed in fine adjustment stage, by the servomotor in fine adjustment stage adjust respectively FPC plates stationary fixture and
The horizontal level of pcb board stationary fixture, to calibrate FPC plates and pcb board.Servomotor control easy to remove, it is mobile stable, can be with
Welding efficiency is improved, avoids pressure inclined.
Step S40, welding step, the welding foot that pcb board is partly stretched out in FPC plates is passed through into pulse hot pressing using plumb joint
It is welded on the pad of pcb board；Wherein, the hot pressing temperature of alloy thermal head is 410-450 DEG C in the welding step, during hot pressing
Between be 8-12S, hot pressing air pressure is 0.2-0.5MPA.Preferably, hot pressing temperature is 410 DEG C, 420 DEG C, 430 DEG C, 440 DEG C and 450
℃.Hot pressing time is preferably 8S, 10S, 12S, and hot pressing air pressure is 0.2MPA, 0.3MPA and 0.5MPA.The parameter of whole hot pressing compared with
It is stable, it is easy to control.Wherein, in the welding step between the welding foot of FPC plates and the pad of pcb board formed with solder joint, institute
The height for stating solder joint is 0.2-0.3mm.The height of solder joint only has 0.2-0.3mm, and solder joint height is small so that the welding of FPC plates is put down
Whole degree is preferable, is suitable for applying in the welding structure in precision gap welding end and by tin point height limitation.Plumb joint is located at hot pressing
In bonding machine, the quantity of plumb joint has multiple, can realize simultaneously while the welding at multiple positions.
Step S50, cooling step, FPC plates and pcb board after cooling welding, obtains finished product.Wherein, the cooling step
The chilling temperature of middle FPC plates and pcb board is 140-160 DEG C, makes welding fusion on the pad of pcb board.The preferable temperature of cooling
For 140 DEG C, 150 DEG C and 160 DEG C, by selecting the chilling temperature that welding fusion can be made to be advantageous to drop on the pad of pcb board
Low electric welding height.
Technical scheme includes pre-treatment step, fixing step, calibration steps, welding step and cooling step,
Calibrated FPC plates and pcb board are welded in a manner of pulse thermal compression welding by using plumb joint, compared to manual welding, weldering
Termination process need not add tin, and hot pressing time, pressure, hot pressing temperature are stable, and the FPC plates after welding are more smooth, and nothing drags tin and tin
Point produces, and has preferable welding stability compared to human weld, and can improve welding efficiency.
Fig. 2 shows the method block diagram of another embodiment of the present invention soft board pulse thermal compression welding method；It refer to Fig. 2,
In a specific embodiment, the plumb joint is alloy thermal head,
Also include before the step of welding step：
Step S31, preheating step, pulse is controlled to carry out the pre-heat treatment to alloy thermal head using PLC, by alloy hot pressing
Head is preheated to welding job temperature.By shifting to an earlier date pre- thermalloy thermal head, the heat time can be shortened, be advantageous to improve Welder
Make efficiency.
In one embodiment, also include after the preheating step：
Step S32, alloy thermal head contraposition step, is specifically included,
Utilize the real time position of camera collection alloy thermal head movement；
The real time position of alloy thermal head is projeced on display screen, and welding post is preset with display screen；
Alloy thermal head is moved to welding post.
In the present embodiment, the real time position of alloy thermal head movement is gathered by camera or camera system, is then projected
In on display screen, the display screen can be colorful display screen, be easy to differentiate, and guarantee product is clear, accurate contraposition.
Preferably, the real time position by alloy thermal head is projeced into before the step on display screen, in addition to：
Amplify the coordinate of the real time position of alloy thermal head movement.
The coordinate of the real time position moved by amplifying big alloy thermal head, more clearly can be shown on display screen.
In addition, in this programme, warning message can also be sent, when machine occurs abnormal to remind the attention of staff.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in the scope of patent protection of the present invention.
Claims (9)
- A kind of 1. soft board pulse thermal compression welding method, it is characterised in that methods described includes：Pre-treatment step, prepare a FPC plates and a pcb board to be processed, wherein, the FPC plates are described formed with welding foot Pcb board can partly stretch out the hole position of pcb board formed with hole position, the welding foot；Fixing step, FPC plates and pcb board, and the top for making pcb board be located at FPC are fixed respectively；Calibration steps, calibrates the position of FPC plates and pcb board, and FPC plates is abutted with pcb board, wherein, the welding of the FPC plates Pin part stretches out pcb board and bends the pad close to pcb board；Welding step, the welding foot that pcb board is partly stretched out in FPC plates is connected on pcb board by pulse thermocompression bonding using plumb joint Pad on；Cooling step, FPC plates and pcb board after cooling welding, obtains finished product.
- 2. soft board pulse thermal compression welding method as claimed in claim 1, it is characterised in that the fixing step, specifically include：Fix FPC plates using FPC plates stationary fixture, pcb board fixed using pcb board stationary fixture, by the FPC plates after fixation and Pcb board is put into mould, wherein, the FPC plates stationary fixture is located at the top of pcb board stationary fixture.
- 3. soft board pulse thermal compression welding method as claimed in claim 2, it is characterised in that the calibration steps, specifically include：FPC plates and pcb board are individually fixed in fine adjustment stage, FPC plates are adjusted by the servomotor in fine adjustment stage respectively The horizontal level of stationary fixture and pcb board stationary fixture, to calibrate FPC plates and pcb board.
- 4. soft board pulse thermal compression welding method as claimed in claim 1, it is characterised in that the plumb joint is alloy hot pressing Head,Also include before the step of welding step：Preheating step, control pulse to carry out the pre-heat treatment to alloy thermal head using PLC, alloy thermal head is preheated to welding Operating temperature.
- 5. soft board pulse thermal compression welding method as claimed in claim 4, it is characterised in that also wrapped after the preheating step Include：Alloy thermal head aligns step, specifically includes,Utilize the real time position of camera collection alloy thermal head movement；The real time position of alloy thermal head is projeced on display screen, and welding post is preset with display screen；Alloy thermal head is moved to welding post.
- 6. soft board pulse thermal compression welding method as claimed in claim 5, it is characterised in that described by the real-time of alloy thermal head Position is projeced into before the step on display screen, in addition to：Amplify the coordinate of the real time position of alloy thermal head movement.
- 7. soft board pulse thermal compression welding method as claimed in claim 1, it is characterised in that alloy hot pressing in the welding step The hot pressing temperature of head is 410-450 DEG C, hot pressing time 8-12S, and hot pressing air pressure is 0.2-0.5MPA.
- 8. soft board pulse thermal compression welding method as claimed in claim 1, it is characterised in that FPC plates in the welding step Formed with solder joint between welding foot and the pad of pcb board, the height of the solder joint is 0.2-0.3mm.
- 9. soft board pulse thermal compression welding method as claimed in claim 1, it is characterised in that in the cooling step FPC plates with The chilling temperature of pcb board is 140-160 DEG C, makes welding fusion on the pad of pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044334.9A CN107617816B (en) | 2017-10-31 | 2017-10-31 | Soft board pulse hot-press welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711044334.9A CN107617816B (en) | 2017-10-31 | 2017-10-31 | Soft board pulse hot-press welding method |
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| Publication Number | Publication Date |
|---|---|
| CN107617816A true CN107617816A (en) | 2018-01-23 |
| CN107617816B CN107617816B (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711044334.9A Expired - Fee Related CN107617816B (en) | 2017-10-31 | 2017-10-31 | Soft board pulse hot-press welding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560992A (en) * | 2019-08-05 | 2019-12-13 | 武汉光迅科技股份有限公司 | device and method for automatic material taking, alignment and positioning of FPC |
| CN111299800A (en) * | 2020-04-10 | 2020-06-19 | 惠州市西文思实业有限公司 | Pressure welding device |
| CN111715991A (en) * | 2020-06-28 | 2020-09-29 | 上海创功通讯技术有限公司 | Isolated welding device and method |
| CN114850648A (en) * | 2022-04-25 | 2022-08-05 | 东莞先导先进科技有限公司 | Method for welding semiconductor metal packaging optical lens based on pulse hot pressing |
| CN115502539A (en) * | 2022-09-29 | 2022-12-23 | 江西盛泰精密光学有限公司 | Method for assembling endoscope assembly |
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| CN106695107A (en) * | 2017-01-19 | 2017-05-24 | 深圳天邦达科技有限公司 | Lithium battery control module thermal compression welding method and lithium battery control module obtained after welding |
| CN206575669U (en) * | 2017-03-16 | 2017-10-20 | 昆山龙腾光电有限公司 | Circuit board assemblies |
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| CN1347275A (en) * | 2000-10-10 | 2002-05-01 | 明棋电通股份有限公司 | Soldering method between golden fingers on PCB and pins of flexible printed circuit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560992A (en) * | 2019-08-05 | 2019-12-13 | 武汉光迅科技股份有限公司 | device and method for automatic material taking, alignment and positioning of FPC |
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| CN111299800A (en) * | 2020-04-10 | 2020-06-19 | 惠州市西文思实业有限公司 | Pressure welding device |
| CN111299800B (en) * | 2020-04-10 | 2022-03-01 | 惠州西文思技术股份有限公司 | Pressure welding device |
| CN111715991A (en) * | 2020-06-28 | 2020-09-29 | 上海创功通讯技术有限公司 | Isolated welding device and method |
| CN114850648A (en) * | 2022-04-25 | 2022-08-05 | 东莞先导先进科技有限公司 | Method for welding semiconductor metal packaging optical lens based on pulse hot pressing |
| CN114850648B (en) * | 2022-04-25 | 2024-03-26 | 东莞先导先进科技有限公司 | Method for welding semiconductor metal packaging optical lens based on pulse hot pressing |
| CN115502539A (en) * | 2022-09-29 | 2022-12-23 | 江西盛泰精密光学有限公司 | Method for assembling endoscope assembly |
| CN115502539B (en) * | 2022-09-29 | 2024-05-28 | 江西盛泰精密光学有限公司 | Endoscope assembly method |
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| CN107617816B (en) | 2020-04-07 |
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