CN117812835A - Control device and method for printing soldering paste on welding end of surface-mounted component body - Google Patents
Control device and method for printing soldering paste on welding end of surface-mounted component body Download PDFInfo
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- CN117812835A CN117812835A CN202211172439.3A CN202211172439A CN117812835A CN 117812835 A CN117812835 A CN 117812835A CN 202211172439 A CN202211172439 A CN 202211172439A CN 117812835 A CN117812835 A CN 117812835A
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- 238000003466 welding Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005476 soldering Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 112
- 239000010959 steel Substances 0.000 claims abstract description 112
- 229910000679 solder Inorganic materials 0.000 claims abstract description 31
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The method discloses a control device and a control method for printing soldering paste on a soldering end of a surface-mounted component body, wherein the control device comprises an upper cover plate (1), a steel sheet (3), a positioning support (5), a base (7) and a limiting groove (8). Based on the size of the component body, a limiting groove is designed at the center of the base, and the welding end of the component body is seamlessly arranged in the limiting groove. Be equipped with on base (7) location pillar (5), be the back font hollow on upper cover plate (1) according to the overall dimension and the position of location pillar (5) of base (7), corresponding apron pillar locating hole (11) are designed, be fixed with steel sheet (3) of printing solder paste on the upper cover plate (1), according to components and parts body welded end size steel sheet (3) central point puts and carries out corresponding trompil, through steel sheet (3) and upper cover plate (1) cooperation, make steel sheet (3) and components and parts body welded end non-deviation combine. The invention has simple operation and high welding quality.
Description
Technical Field
The invention belongs to the field of electronic assembly, and particularly relates to a control method of a surface mounted component printing solder paste.
Background
The density of the printed board assembly is higher and higher at present, the used device is more and more compact, the packaging of the device is more and more miniaturized, high density and dense space provide higher challenges for repairing the device, the device with the bottom bonding pad which needs to be repaired is a method for manufacturing a small steel sheet, printing solder paste directly on the printed board bonding pad, along with the continuous increase of the printed board density, a method for locally brushing the solder paste on the printed board is adopted, the method has great limitation, the high-density printed board assembly is encountered, the interfered components around the repaired device possibly need to be removed firstly, the removed components are welded back in situ after the printing and welding of the repaired device are carried out, if the surrounding of the repaired device is similar to those of BGA (ball grid array) and the like, the repairing is obviously unreasonable, the situation is encountered, the time and time are only wasted for operators by manually applying the solder paste on the bonding pad, the method cannot guarantee the consistency of the solder paste quantity and quality after the point coating, and the quality guarantee is not needed because the quality can not be obtained after the BGA is applied, and the quality guaranteeing is difficult to be known because of the skill and the quality guaranteeing after the point is difficult to be applied.
Disclosure of Invention
The invention aims to solve the problem that solder paste printing cannot be realized when a device with a bottom bonding pad is reworked, and provides a control device and a control method for printing solder paste on a bonding end of a surface-mounted component body, which are simple to operate and high in welding quality.
In order to achieve the purpose of the invention, the invention provides a control device for printing soldering paste on a soldering end of a surface-mounted component body, which adopts the following technical scheme:
the control device comprises an upper cover plate, a steel sheet, a positioning support column, a base and a limiting groove,
designing a limiting groove in the center of the base based on the size of the component body, and seamlessly installing the component body in the limiting groove;
the base is provided with the positioning support column, the corresponding cover plate support column positioning holes are designed on the upper cover plate which is hollow in a shape like a Chinese character 'hui' according to the outline dimension and the position of the positioning support column of the base,
and a steel sheet for printing soldering paste is fixed on the upper cover plate, corresponding holes are formed in the center of the steel sheet according to the size of the welding end of the component body, and the steel sheet is combined with the welding end of the component body without deviation through the cooperation of the steel sheet and the upper cover plate.
Further, the size design of the base limit groove and the outline size 1 of the components are as follows: 1, the depth in the limiting groove is 0.1mm lower than the thickness of the component body.
Furthermore, a deep groove is respectively arranged on the base and on two sides of the limiting groove.
Further, a plurality of base through holes, screw holes and steel sheet positioning holes are respectively designed at positions corresponding to the peripheries of the base, the upper cover plate and the steel sheet, steel sheet pillar positioning holes are formed in positions corresponding to two cover plate pillar through holes of the upper cover plate on the steel sheet, when the upper cover plate is combined with the base, screws for fixing the steel sheet penetrate through the steel sheet positioning holes and the screw holes and are embedded into the base through holes, and two positioning pillars of the base penetrate through two cover plate pillar through holes of the upper cover plate and are embedded into the steel sheet pillar positioning holes on the steel sheet.
Further, the diameters of the steel sheet positioning holes and the steel sheet pillar positioning holes on the steel sheet are larger than the diameters of the screw holes and the cover plate pillar through holes corresponding to the upper cover plate.
Furthermore, the steel sheet is combined with the welding end of the component body without deviation through the cooperation of the steel sheet and the upper cover plate 1, and the method comprises the following steps:
the steel sheet is pre-fixed according to the corresponding screw holes of the upper cover plate, then the component body is placed in the base limiting groove, the upper cover plate is placed on the base through the positioning support column, deviation-free alignment of a steel sheet center opening and a component body welding end is achieved through moving the steel sheet position, and then the screw is finally fixed through a base through hole in the back of the base, so that positioning of the steel sheet and the upper cover plate position is achieved.
According to still another aspect of the present invention, there is provided a control method of printing solder paste on a solder terminal of a surface mount component body, comprising the steps of:
the method comprises the steps that firstly, the size of a limiting groove is determined at the center of a base based on the size of a component body, so that seamless combination of the component body and the limiting groove is realized;
secondly, designing a base positioning column to realize non-deviation combination of the base and the hollow upper cover plate in a shape like a Chinese character 'Hui';
thirdly, corresponding tapping is carried out at the center of the steel sheet based on an original tapping mode of the welding end of the reworked component body on the printed board;
and fourthly, fixing the steel sheet on the upper cover plate, and realizing non-deviation combination of the steel sheet and the welding end of the component body through cooperation with the upper cover plate.
Further, the size design of the base limit groove and the outline size 1 of the component body: 1, the depth in the limiting groove is 0.1mm lower than the thickness of the component body.
Furthermore, a deep groove is respectively arranged on the base and on two sides of the limiting groove.
Further, the diameter of the hole of the screw hole of the upper cover plate is smaller than that of the hole of the steel sheet, the steel sheet is pre-fixed on the upper cover plate through the screw, the center hole of the steel sheet is aligned and overlapped with the welding end of the component body through the movement of the steel sheet in the up-down, left-right directions, and then the position of the steel sheet is finally positioned through the screw for the through hole of the base.
Compared with the prior art, the invention has the following advantages:
(1) The method is convenient and quick to operate, and the steel sheet is used again without adjustment after being aligned with the device for the first time;
(2) When the device is repaired by the method, surrounding interference components do not need to be disassembled, and secondary welding damage to the components is avoided;
(3) The printing quality and welding consistency of the method are good.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic diagram showing a base structure of a control device for printing solder paste on a solder terminal of a surface mount component body according to an embodiment of the present invention;
fig. 2 shows a schematic diagram of the structure of an upper cover plate and a steel sheet of a control device for printing solder paste on a solder terminal of a surface mount component body according to an embodiment of the present invention;
the novel steel plate positioning device comprises an upper cover plate 1, screw holes 2, steel plates 3, screws 4, positioning struts 5, base through holes 6, bases 8, limiting grooves 9, deep grooves 10, steel plate positioning holes 11, cover plate strut positioning holes 12 and steel plate strut positioning holes.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The control device for printing soldering paste on the soldering end of the surface-mounted component body provided by the embodiment of the invention comprises an upper cover plate 1, a steel sheet 3, a positioning support column 5, a base 7 and a limiting groove 8.
As shown in fig. 1, based on the external dimension of the component body, the limiting groove 8 is designed at the center of the base 7, and the ratio of the external dimension of the limiting groove 8 to the dimension of the component body is 1:1, the seamless combination of the component body and the limit groove 8 is realized, so that more accurate positioning is realized. Two positioning support posts 5 are arranged on the base 7 and used for limiting the upper cover plate 1. As shown in fig. 2, the outline dimensions and positions of the two positioning struts 5 of the base 7 are shown as 1:1 are designed with corresponding cover plate support column positioning holes 11, so that the upper cover plate 1 and the base 7 are accurately combined. The upper cover plate 1 is fixedly provided with a steel sheet 3 printed with soldering paste, the outline dimension of the steel sheet 3 keeps consistent with the outline dimension of the upper cover plate 1, corresponding holes are formed in the center of the steel sheet 3 according to the welding end dimension of the component body, and the steel sheet 3 and the upper cover plate 1 are matched to realize unbiased combination of the welding end of the steel sheet 3 and the component body.
In an embodiment of the present invention, the depth in the limiting groove 8 should be 0.1mm (empirical value) lower than the thickness of the component body, so as to ensure that the printed surface protrudes out of the base 7 after the component is placed, and complete combination of the printed surface at the soldering end of the component and the steel sheet 3 is achieved.
In an embodiment of the present invention, in order to easily take out the device after printing, two deep grooves 9 with a depth of 1mm are designed on the base 7 and on both sides of the limiting groove 8, and after printing, the device body is clamped at the position of the deep grooves 9 by anti-static tweezers, so as to realize separation of the device and the base 7.
In an embodiment of the present invention, 8 base through holes 6, screw holes 2 and steel sheet positioning holes 10 are respectively designed at positions corresponding to the peripheries of the base 7, the upper cover plate 1 and the steel sheet 3, and steel sheet support positioning holes 12 are provided on the steel sheet 3 corresponding to the two cover plate support through holes 11 of the upper cover plate 1. When the upper cover plate 1 is combined with the base 7, the screw 4 for fixing the steel sheet 3 passes through the steel sheet positioning holes 10 and the screw holes 2 to be embedded into the base through holes 6, and the two positioning struts 5 of the base 7 pass through the two cover plate strut through holes 11 of the upper cover plate 1 to be embedded into the steel sheet strut positioning holes 12 on the steel sheet 3. At the bottom of the base 7, final fixing of the steel sheet is achieved by adjusting the tightness of the screw 4 by means of a tool.
The external dimension of the upper cover plate 1 is consistent with the dimension of the base 7, and the center of the steel sheet positioning hole 10 of the fixed steel sheet 3 is consistent with the center of the base through hole 6.
Further, in order to achieve fine adjustment of the position of the steel sheet (achieving non-offset alignment of the steel sheet opening and the welding end of the device through fine adjustment), the diameters of the steel sheet positioning holes 10 and the steel sheet pillar positioning holes 12 on the steel sheet 3 are larger than the diameters of corresponding holes (screw holes 2 and cover pillar through holes 11) of the upper cover plate by 0.1mm.
The steel sheet 3 is pre-fixed according to the corresponding screw holes 2 of the upper cover plate 1, then components are placed in the limit grooves 8 of the base 7, the upper cover plate 1 is placed on the base 7 through the positioning support posts 5, the unbiased alignment of the center opening of the steel sheet and the welding end of the components is realized by moving the position of the steel sheet 3, then the screws are finally fixed through the base through holes 6 on the back of the base 7 by a tool, the positioning of the positions of the steel sheet 3 and the upper cover plate 1 is realized, and finally solder paste is printed on the upper surface of the steel sheet, so that solder paste printing of the welding end of the components is realized.
According to still another aspect of the present invention, there is provided a control method of printing solder paste on a solder terminal of a surface mount component body, comprising the steps of:
the first step, based on the size of the component body, the size of the limiting groove is determined at the center of the base, and the seamless combination of the component and the limiting groove is realized.
And secondly, designing a base positioning column to realize the unbiased combination of the base and the hollow upper cover plate in the shape of a Chinese character 'Hui'.
Thirdly, based on an original perforating mode of the welding end of the reworked component body on the printed board, corresponding perforating is carried out at the center of the steel sheet.
And fourthly, punching holes in the peripheral positions of the steel sheet, fixing the steel sheet and the upper cover plate, and combining the steel sheet and the welding end of the component body without deviation through matching of the steel sheet and the upper cover plate.
And fifthly, placing a device in the base limiting groove, then placing an upper cover plate on the base, and finally printing the welding end of the device through a small scraper on the upper surface of a steel sheet of the upper cover plate.
And sixthly, placing the printed components on corresponding bonding pads of the printed board in a counterpoint manner, and finally realizing welding.
In an embodiment of the present invention, the size of the base limiting groove is designed and the external dimension of the component is 1:1, realize the seamless combination of components and parts and spacing groove to realize more accurate location, the degree of depth in the spacing groove should be than the thickness of components and parts body 0.1mm down simultaneously, guarantees that the printing face is outstanding the base after the components and parts are placed, realizes the complete combination of the face of welding of components and parts and steel sheet.
In an embodiment of the invention, in order to realize that the device can be easily taken out after printing, two deep grooves with the depth of 1mm are designed on the base and on two sides of the limiting groove, so that the device can be easily taken out after printing is finished, and the scratch to the solder paste of the device is prevented.
In one embodiment of the present invention, in order to implement the cooperation between the steel sheet and the cover plate in the step 4, the following method is adopted: the upper cover plate is provided with a screw hole with the diameter smaller than 0.1mm, the steel sheet is pre-fixed on the upper cover plate through the screw, the alignment coincidence of the center hole of the steel sheet and the welding end of the component body is realized through the movement of the steel sheet in the up-down, left-right directions, and then the final positioning of the steel sheet position through the screw for the through hole of the base is realized, so that offset-free printing is realized.
According to the invention, through designing the control method of printing the solder paste on the welding end of the surface-mounted component body, the initial idea of designing the method is put forward, the method is implemented in a specific way, and the design method is shaped, so that the use effect of the control method of printing the solder paste is finally seen, the control method of printing the solder paste on the welding end of the surface-mounted component body is not only simplified in production process, but also provides a design thought for a later repairing process method, and the control method of printing the solder paste on the welding end of the surface-mounted component body is applied to the electric repairing production of related products, thereby effectively controlling the repairing quality of the products, improving the production efficiency in terms of the final use effect, and greatly solving the problem of poor welding reliability caused by inconsistent solder paste quantity. In addition, the invention has flexible design, novel thought and strong usability, and provides a method and thought for people with similar operation flows.
The invention is not described in detail in the field of technical personnel common knowledge.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The control device for printing soldering paste on the welding end of the surface-mounted component body is characterized by comprising an upper cover plate (1), a steel sheet (3), a positioning support (5), a base (7) and a limiting groove (8),
designing a limiting groove in the center of the base based on the size of the component body, and seamlessly installing the component body in the limiting groove;
the base (7) is provided with the positioning support (5), the corresponding cover plate support positioning holes (11) are designed on the hollow upper cover plate (1) in a shape like a Chinese character 'hui' according to the outline dimension and the position of the positioning support (5) of the base (7),
the upper cover plate (1) is fixedly provided with a steel sheet (3) for printing soldering paste, corresponding holes are formed in the center of the steel sheet (3) according to the size of the welding end of the component body, and the steel sheet (3) and the upper cover plate (1) are matched, so that the steel sheet (3) and the welding end of the component body are combined without deviation.
2. The control device for printing solder paste on a solder terminal of a surface mount component body according to claim 1, wherein the base limit groove is dimensioned to have a dimension of 1:1, the depth in the limit groove (8) is 0.1mm lower than the thickness of the component body.
3. The control device for printing solder paste on the soldering terminal of a surface mount component body according to claim 1, wherein a deep groove (9) is provided on the base (7) on both sides of the limit groove (8).
4. The control device for printing soldering paste on the soldering terminal of the surface mount component body according to claim 1, wherein a plurality of base through holes (6), screw holes (2) and steel sheet positioning holes (10) are respectively designed at positions corresponding to the peripheries of the base (7), the upper cover plate (1) and the steel sheet (3), steel sheet pillar positioning holes (12) are formed in positions corresponding to two cover plate pillar through holes (11) of the upper cover plate (1) on the steel sheet (3), when the upper cover plate (1) is combined with the base (7), screws (4) for fixing the steel sheet (3) penetrate through the steel sheet positioning holes (10) and the screw holes (2) are embedded into the base through holes (6), and two positioning pillars (5) of the base (7) penetrate through the two cover plate pillar through holes (11) of the upper cover plate (1) and are embedded into the steel sheet pillar positioning holes (12) on the steel sheet (3).
5. The control device for printing soldering paste on the soldering terminal of the surface mount component body according to claim 4, wherein the diameters of the steel sheet positioning holes (10) and the steel sheet pillar positioning holes (12) on the steel sheet (3) are larger than the diameters of the corresponding screw holes (2) and the corresponding cover plate pillar through holes (11) of the upper cover plate (1).
6. The control device for printing solder paste on a soldering terminal of a surface mount component body according to claim 5, wherein the steel sheet (3) is combined with the soldering terminal of the component body without deviation by the cooperation of the steel sheet (3) and an upper cover plate (1), the method is as follows:
the steel sheet (3) is pre-fixed according to corresponding screw holes (2) of the upper cover plate (1), then the component body is placed in a limit groove (8) of the base (7), the upper cover plate (1) is placed on the base (7) through the positioning support column (5), deviation-free alignment of a steel sheet center opening and a component body welding end is achieved through moving the steel sheet (3), and then the screw is finally fixed through a base through hole (6) in the back of the base (7), so that the steel sheet (3) and the upper cover plate (1) are positioned.
7. The control method for printing the soldering paste on the soldering terminal of the surface-mounted component body is characterized by comprising the following steps:
the method comprises the steps that firstly, the size of a limiting groove is determined at the center of a base based on the size of a component body, so that seamless combination of the component body and the limiting groove is realized;
secondly, designing a base positioning column to realize non-deviation combination of the base and the hollow upper cover plate in a shape like a Chinese character 'Hui';
thirdly, corresponding tapping is carried out at the center of the steel sheet based on an original tapping mode of the welding end of the reworked component body on the printed board;
and fourthly, fixing the steel sheet on the upper cover plate, and realizing non-deviation combination of the steel sheet and the welding end of the component body through cooperation with the upper cover plate.
8. The control method for printing solder paste on a solder terminal of a surface mount component body according to claim 7, wherein the base limit groove is dimensioned to have a dimension of 1:1, the depth in the limiting groove is 0.1mm lower than the thickness of the component body.
9. The control method for printing solder paste on a soldering terminal of a surface mount device according to claim 7, wherein a deep groove is provided on the base at both sides of the limit groove.
10. The control method for printing soldering paste on the soldering terminal of surface mount component according to claim 7, wherein the hole diameter of the screw hole of the upper cover plate is smaller than the hole diameter of the steel sheet, the steel sheet is pre-fixed on the upper cover plate through screws, the alignment coincidence of the hole in the center of the steel sheet and the soldering terminal of the component is realized through the movement of the steel sheet in the up-down, left-right directions, and then the final positioning of the steel sheet position is realized through the through holes of the base through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211172439.3A CN117812835A (en) | 2022-09-26 | 2022-09-26 | Control device and method for printing soldering paste on welding end of surface-mounted component body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211172439.3A CN117812835A (en) | 2022-09-26 | 2022-09-26 | Control device and method for printing soldering paste on welding end of surface-mounted component body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117812835A true CN117812835A (en) | 2024-04-02 |
Family
ID=90418582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211172439.3A Pending CN117812835A (en) | 2022-09-26 | 2022-09-26 | Control device and method for printing soldering paste on welding end of surface-mounted component body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117812835A (en) |
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2022
- 2022-09-26 CN CN202211172439.3A patent/CN117812835A/en active Pending
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