CN101407378B - Welding press table - Google Patents
Welding press table Download PDFInfo
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- CN101407378B CN101407378B CN2008101743650A CN200810174365A CN101407378B CN 101407378 B CN101407378 B CN 101407378B CN 2008101743650 A CN2008101743650 A CN 2008101743650A CN 200810174365 A CN200810174365 A CN 200810174365A CN 101407378 B CN101407378 B CN 101407378B
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- press table
- stitching
- welding press
- carrier
- tool
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Abstract
The invention discloses a welding press fit machine, including a light source, a focusing mirror, a bearing tray, a press fit jig and a hot press head. The light source generates a light beam which goes forward along an optical axis direction. The bearing tray is used for bearing an object provided with a welding spot. The press fit jig is provided with a plurality of openings, each opening includes an upper opening and a lower opening, the upper opening is close to the light source, while the lower opening is close to the bearing tray, the section area of the upper opening is larger than that of the lower opening so as to form a side wall which is an inclined plane in each opening, the included angle between the inclined plane and the optical axis direction is larger than or equal to a default, wherein, the default is in accordance with a tangent value of focusing mirror radius divided by focusing mirror focal distance. The hot press head is used for confirming that the welding spot is placed at one preset position and then exerting forces on the press fit jig so as to press and fit the object after the light beam passes through the openings and irradiates on the welding spot of the object.
Description
Technical field
The invention relates to a kind of welding press table, refer to a kind of welding press table that utilizes beam position object bond pad locations especially.
Background technology
At liquid crystal indicator (Liquid Crystal Display, LCD) in manufacturing processed, the personnel of operation welding press table need to be positioned on the carrier (tray) with the object that manually will not weld, and control thermal head again and force in tool for stitching, with this object welding press.Yet the limited size of thermal head can't be made relatively large thermal head in the restriction of object size to be laminated, present technology and mechanical space three aspects.Also therefore, the pressure welding processing procedure is subject to the thermal head size, makes each thermal head once can only finish the welding of 2-3 spare object.Next just must with the artificial mode will be the pressing object remove from carrier, place not the pressing object more in addition on carrier, the repeatable operation of so going round and beginning again.But operator scheme need be considered to move the time of pressing object and object to be laminated with manpower like this, the intercommunication a large amount of obvious shortage efficient of making of production line of speed of seeking quickness, and it is long to cause finishing every object pressing time.
See also Fig. 1, Fig. 1 is the synoptic diagram of prior art laser welding press table 10 irradiations object solder joint to be laminated.Use laser welding (Laser Soldering) press table 10 light source 12 to be set at present with outgoing laser beam.Behind condensing lens 15 these laser beams of focusing, can penetrate on the solder joint 22 that is positioned over the object 20 on the carrier 14.Afterwards, the optical sensor of welding press table 10 (figure does not show), for example (Charge Coupling Device CCD), can detect the position of solder joint 22 according to this laser beam to optically coupled device.Because laser light must be radiated at and just can make image crawled under solder joint 22 prerequisites, and for effective pressing, so the distance of perforate 18 edges of tool for stitching 16 and solder joint 22 is very approaching.Can realize from Fig. 1, after laser beam process condensing lens 15, because the focal length F of condensing lens 15 is limited, so laser beam can't shine fully on solder joint 22, there is part light to be blocked on the contrary by the edge 16a of tool for stitching 16, cause laser beam can't be passed to solder joint 22, cause the extracting picture contrast low so that can't identification.
In addition, the carrier 14 of laser welding press table 10 can be placed 10-30 object 20 to be laminated, so normal configuration has the tool for stitching 16 of respective amount perforate 18.Therefore tool for stitching 16 also occupies certain area.Once thermal head is when forcing on the tool for stitching 16, because of spring height and deformation quantity are difficult to regulate and control consistent factor, so can't guarantee that all objects 20 are all by tool for stitching 16 tight pressings.Once the part object not by tool for stitching 16 tight pressings, is treated just can't overflow to upper strata flexible circuit board (Flexible printed circuit board, FPC) the hollow weldering of formation after the scolding tin fusing.
Because existing laser welding press table 10 has above-mentioned shortcoming, therefore to pursue in the production of production efficiency, this board still has improved necessity.
Summary of the invention
Main purpose of the present invention is to provide a kind of welding press table, the perforate of its tool for stitching comprises upper shed and lower opening, this upper shed is near this light source, this lower opening is near this carrier, the sectional area of this upper shed is greater than the sectional area of this lower opening, thus, the light beam that light source penetrates can be complete pass through this perforate, makes the extracting image reach preferable contrast gradient.
According to above-mentioned purpose of the present invention, the invention provides a kind of welding press table, it comprises light source, condensing lens, carrier, tool for stitching, and thermal head.This light source is used for producing along optical axis direction progressive light beam.This condensing lens is arranged at this optical axis direction.Be used for assembling this light beam.This carrier is used for loaded object, and this object is provided with solder joint.This tool for stitching is provided with several perforates, each perforate comprises upper shed and lower opening, this upper shed is near this light source, this lower opening is near this carrier, the sectional area of this upper shed is greater than the sectional area of this lower opening, the sidewall that forms each perforate comprises the inclined-plane, and the angle of this inclined-plane and this optical axis direction is more than or equal to default value, and wherein this default value is to meet the tangent value (tangent) of the radius of this condensing lens divided by the condensing lens focal length.This thermal head is used for shining solder joint in this object in this light beam by this perforate, after confirming that this solder joint has placed a predeterminated position, forces on this tool for stitching, with this object of pressing.
According to a preferred embodiment of the present invention, this light source is used for producing laser beam.This carrier carries several this objects simultaneously.Distance between the lower surface of this tool for stitching and this condensing lens is less than the focal length of this condensing lens.The lower opening of this perforate closely wraps up this solder joint.
According to one of the present invention preferred embodiment, welding press table of the present invention comprises first bolster in addition, is arranged between this tool for stitching and this object, is used for when this thermal head forces in this tool for stitching, and this first bolster is on average forced on this object.Wherein this first bolster comprises hole, and the area of this hole is used for after this object is positioned over this carrier greater than this solder joint area, makes this solder joint pass this hole.
According to one of the present invention preferred embodiment, welding press table of the present invention comprises second bolster in addition, this second bolster is arranged between this object and this carrier, is used for when this thermal head forces in this tool for stitching, and this second bolster is on average forced on this object.
According to one of the present invention preferred embodiment, welding press table of the present invention comprises mobile microscope carrier in addition, is used for moving this carrier and makes the solder joint of this object move under the perforate of this tool for stitching.
For foregoing of the present invention can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Fig. 1 is the synoptic diagram that prior art laser welding press table shines the solder joint of object to be laminated.
Fig. 2 is the synoptic diagram that welding press table of the present invention shines the solder joint of object to be laminated.
Embodiment
Below the explanation of each embodiment be with reference to additional graphic, can be in order to illustration the present invention in order to the specific embodiment of enforcement.The direction term that the present invention mentioned, for example " on ", D score, " preceding ", " back ", " left side ", " right side ", " side " etc., only be direction with reference to annexed drawings.Therefore, the direction term of use is in order to explanation and understands the present invention, but not in order to restriction the present invention.
Please refer to Fig. 2, Fig. 2 is the synoptic diagram of the solder joint 62 of welding press table 40 irradiations of the present invention object 60 to be laminated.Welding (Laser Soldering) press table 40 comprises light source 42, carrier 44, condensing lens 45, tool for stitching 46, mobile microscope carrier 50 and thermal head 56.Carrier 44 is to be arranged on the mobile microscope carrier 50, and carrier 44 can carry several objects that is provided with solder joint 62 60.In the present embodiment, tool for stitching 46 comprises several perforates 48, and each perforate 48 corresponds to a condensing lens 45, and is succinct for asking drawing, and following embodiment explanation only illustrates condensing lens 45 and perforate 48.Light source 42 is used for producing the light beam that advances along optical axis direction 422.In preferred embodiment, light source 42 can be a laser light source, is used for producing laser beam.Via the laser beam that the condensing lens 45 that is arranged at optical axis direction 422 is focused on, can pass the perforate 48 of tool for stitching 46 and penetrate on the solder joint 62 that is positioned over the object 60 on the carrier 44.Afterwards, the optical sensor of welding press table 40 (figure does not show), for example (Charge Coupling Device CCD), can detect the position of solder joint 62 according to this laser beam to optically coupled device.For instance, if solder joint 62 places under the perforate 48 completely, then this optical sensor can detect the area with predetermined luminance.Otherwise, if solder joint 62 has deviation not place completely under the perforate 48 slightly, cause having the part laser beam can be mapped on the carrier 44, so the area of the predetermined luminance that this optical sensor can detect is less, this expression solder joint is not positioned over predetermined position accurately.For avoiding pressing effect after a while to be affected, the mobile a little carrier 44 of at this moment mobile microscope carrier 50 meetings is till solder joint 62 accurately places predeterminated position.After solder joint 62 aligned in position, thermal head 56 can force on the tool for stitching 46, with pressing object 60.
Can realize that from Fig. 2 the sidewall 462 of tool for stitching 46 is ㄧ inclined-planes.In other words, each perforate 48 comprises upper shed 482 and lower opening 484.Upper shed 482 is near light source 42, and lower opening 484 is near carrier 44, and the sectional area of upper shed 482 is greater than the sectional area of lower opening 484.In order to reach preferable pressing effect, opening 482 closely wraps up solder joint 62 under the perforate 48.In addition, the distance between the lower surface of tool for stitching 46 and the condensing lens 45 is less than the focal length F of condensing lens 45.
Note that the inclined-plane 462 and the included angle B of optical axis direction 422 are more than or equal to default value, default value is to meet the tangent value (tangent) of the radius D of condensing lens 45 divided by condensing lens focal length F.That is to say,
。Such configuration in the perforate that is projeced into tool for stitching 46 48 that can be complete, and can not be blocked after just guaranteeing that laser beam focuses on through condensing lens 45.
Welding press table 40 comprises first bolster 52 in addition.First bolster 52 is arranged between tool for stitching 46 and the object 60.First bolster 52 comprises hole, and the area of hole is used for after object 60 is positioned over carrier 44 greater than the area of solder joint 62, makes that the solder joint 62 on the object 60 passes this hole.When allowing thermal head 56 force in tool for stitching 46, object 60 can be more even stressed, promptly is to allow the strength from thermal head 56 evenly force on the object 60 so place the function of first bolster 52 between tool for stitching 46 and the object 60.
Except first bolster 52, welding press table 40 can comprise second bolster 54 in addition, second bolster 54 is arranged between object 60 and the carrier 44, its purposes and first bolster 52 are similar, just be used for when thermal head 56 forces in tool for stitching 46, allow see through second bolster from the strength of thermal head 56 and evenly force on the object 60.In order to increase production efficiency, several objects 60 of carrying on the carrier 44, so utilize the configuration of first bolster 52 and second bolster 54, in the time of can solving thermal head 56 and force on the tool for stitching 46, partly object 60 can't be by the problem of tool for stitching 46 tight pressings because of skewness causes because of spring height and deformation quantity cause being distributed on the carrier 44 several objects 60.
The mobile microscope carrier 50 of welding press table 40 is used for automatic mobile carrier 44 makes the solder joint 62 of object 60 move to the perforate 48 times of tool for stitching 46.So ㄧ comes, and after object 60 pressings finished, mobile microscope carrier 50 can move the direction of carrier 44 towards arrow C, made the object 60 of next batch automatically move to corresponding perforate 48 times.In addition, the object of preceding a collection of pressing does not need to take out welding from carrier 44 more yet, so can save the step that manpower is moved.
Compared to prior art, welding press table of the present invention is provided with mobile microscope carrier can automatic mobile carrier.After the object pressing finishes, need not object is taken out welding again from carrier.But move to the light source below automatically, move the step of pressing object so can save manpower.In addition, the tool for stitching perforate is designed to skewed (upper shed just is big, and lower opening is little).Both guaranteed that light can effectively be radiated on the solder joint by perforate, can guarantee that again lower opening closely is wrapped near the solder joint, and reach preferable pressing effect in such event.And tool for stitching lower surface or the increase of carrier upper surface have certain thickness first bolster or second bolster, can overcome because of the spring height inconsistent or inconsistent each spring that causes of draught can not be all the effective situation of pressing point.
In sum, the present invention has really met the important document of patent of invention, and the whence proposes patent application in accordance with the law.Only; the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the invention; when can doing a little change and retouching, so the present invention's protection domain is as the criterion when looking the accompanying Claim person of defining.In addition, arbitrary embodiment of the present invention or claim must not reached whole purposes or advantage or the characteristics that the present invention discloses.In addition, summary part and title only are the usefulness that is used for assisting the search of patent shelves, are not the interest field that is used for limiting the present invention.
Claims (7)
1. welding press table, it comprises:
One light source is used for producing along an optical axis direction progressive one light beam;
One condensing lens is arranged at described optical axis direction, is used for assembling described light beam;
One carrier is used for carrying an object, and this object is provided with a solder joint; It is characterized in that: described welding press table comprises:
One tool for stitching, it is provided with several perforates, each perforate comprises a upper shed and a lower opening, this upper shed is near described light source, described lower opening is near this carrier, the sectional area of described upper shed is greater than the sectional area of described lower opening, the sidewall that forms each perforate comprises an inclined-plane, the angle of described inclined-plane and this optical axis direction is more than or equal to a default value, wherein said default value is to meet the tangent value of the radius of this condensing lens divided by the condensing lens focal length, and the distance between the lower surface of described tool for stitching and the described condensing lens is less than the focal length of described condensing lens; And
One thermal head is used for shining solder joint in this object in described light beam by this perforate, after confirming that described solder joint has placed a predeterminated position, forces on the described tool for stitching, with the described object of pressing.
2. as 1 described welding press table of claim the, it is characterized in that: described welding press table comprises one first bolster in addition, be arranged between described tool for stitching and this object, be used for when described thermal head forces in described tool for stitching, described first bolster is on average forced on the described object, described first bolster comprises a hole, the area of described hole is greater than described solder joint area, be used for after described object is positioned over described carrier, make this solder joint pass described hole.
3. as 1 described welding press table of claim the, it is characterized in that: described welding press table comprises second bolster in addition, described second bolster is arranged between described object and the described carrier, be used for when described thermal head forces in described tool for stitching, described second bolster is on average forced on the described object.
4. as 1 described welding press table of claim the, it is characterized in that: the lower opening of described perforate is the described solder joint of parcel closely.
5. as 1 described welding press table of claim the, it is characterized in that: described light source is used for producing a laser beam.
6. as 1 described welding press table of claim the, it is characterized in that: described welding press table comprises in addition and moves microscope carrier, is used for moving described carrier and makes the solder joint of described object move under the perforate of described tool for stitching.
7. as 1 described welding press table of claim the, it is characterized in that: described carrier carries several this objects simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101743650A CN101407378B (en) | 2008-10-31 | 2008-10-31 | Welding press table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101743650A CN101407378B (en) | 2008-10-31 | 2008-10-31 | Welding press table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101407378A CN101407378A (en) | 2009-04-15 |
| CN101407378B true CN101407378B (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101743650A Expired - Fee Related CN101407378B (en) | 2008-10-31 | 2008-10-31 | Welding press table |
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| Country | Link |
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| CN (1) | CN101407378B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085034A (en) * | 2021-11-10 | 2022-02-25 | 华为技术有限公司 | Welding apparatus and welding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201040423Y (en) * | 2007-06-06 | 2008-03-26 | 上海市激光技术研究所 | Three-dimensional laser plastic welding pressure device |
| CN101239418A (en) * | 2008-02-19 | 2008-08-13 | 江苏大学 | Flying plate driving type laser micro-welding method and device |
-
2008
- 2008-10-31 CN CN2008101743650A patent/CN101407378B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201040423Y (en) * | 2007-06-06 | 2008-03-26 | 上海市激光技术研究所 | Three-dimensional laser plastic welding pressure device |
| CN101239418A (en) * | 2008-02-19 | 2008-08-13 | 江苏大学 | Flying plate driving type laser micro-welding method and device |
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| Publication number | Publication date |
|---|---|
| CN101407378A (en) | 2009-04-15 |
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Granted publication date: 20110406 Termination date: 20201031 |
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| CF01 | Termination of patent right due to non-payment of annual fee |