CN215379344U - PCB (printed circuit board) jig - Google Patents
PCB (printed circuit board) jig Download PDFInfo
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- CN215379344U CN215379344U CN202120813015.5U CN202120813015U CN215379344U CN 215379344 U CN215379344 U CN 215379344U CN 202120813015 U CN202120813015 U CN 202120813015U CN 215379344 U CN215379344 U CN 215379344U
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Abstract
The utility model discloses a PCB (printed circuit board) jig which comprises a first carrier plate and a second carrier plate; the first carrier plate is provided with a first fixing position, and the second carrier plate is provided with a second fixing position; the first fixing position and the second fixing position are used for fixing a PCB to be processed; the first carrier plate and the second carrier plate are detachably connected, and after the first carrier plate and the second carrier plate are connected, the first fixing position and the second fixing position are located on the same side. The PCB jig can conveniently separate the first carrier plate from the second carrier plate when the solder paste is printed, the printing position is not easy to shift, the PCB jig can still be combined for processing in subsequent processing, and the production efficiency is ensured. Meanwhile, the first fixing position and the second fixing position are located on the same side, and machining operation is facilitated.
Description
Technical Field
The utility model relates to the technical field of PCB manufacturing, in particular to a PCB jig.
Background
Smt (surface Mounted technology) chip refers to an abbreviation of a series of process flows processed on the basis of a PCB (printed Circuit board) which is a printed Circuit board. SMT is one of the most popular techniques and technologies in the electronic assembly industry. The surface-mounted component without pins or short leads is mounted on the surface of a printed circuit board or other substrates and is welded and assembled by methods such as reflow soldering or dip soldering.
In the SMT process, solder paste is printed on a PCB to be processed before components are mounted, and the next component mounting can be carried out only after the solder paste is detected to pass. And after the components are installed, performing reflow soldering to bond the components and the PCB together. At present, when the solder paste is printed, a PCB to be processed is fixed on a jig, so that the operations of manufacturing the solder paste and subsequent processes are facilitated.
At present, the adopted jig is of a double-splicing type, namely, two PCBs to be processed can be fixed on one jig, and the efficiency is improved. However, when the double-piece jig is used for printing solder paste, the printing position is easy to shift, and the PCB is not manufactured well.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a PCB jig, which is not easy to deviate in printing position and improves the manufacturing yield of a PCB.
The utility model discloses a PCB (printed circuit board) jig which comprises a first carrier plate and a second carrier plate; the first carrier plate is provided with a first fixing position, and the second carrier plate is provided with a second fixing position; the first fixing position and the second fixing position are used for fixing a PCB to be processed; the first carrier plate and the second carrier plate are detachably connected, and after the first carrier plate and the second carrier plate are connected, the first fixing position and the second fixing position are located on the same side.
Optionally, a first connecting structure is arranged on the first carrier plate, and a second connecting structure is arranged on the second carrier plate; the first carrier plate and the second carrier plate are detachably connected through the matching of the first connecting structure and the second connecting structure.
Optionally, the first connecting structure is a positioning hole, and the second connecting structure is a positioning pin; when the first carrier plate and the second carrier plate are detachably connected, the positioning pin is inserted into the positioning hole.
Optionally, two positioning holes are formed in the edge of the first carrier plate; correspondingly, the number of the positioning pins is two, the two positioning pins are arranged at the edge of the second carrier plate and correspond to the positioning holes.
Optionally, the edges of the first carrier plate and the second carrier plate are arranged in a sinking manner to form a first avoidance space and a second avoidance space respectively; the first avoidance space and the first fixed position are positioned on the same side, and the second avoidance space is positioned on the opposite side of the second fixed position;
after the first carrier plate and the second carrier plate are connected, the edges of the first carrier plate and the second carrier plate are respectively located in the second avoidance space and the first avoidance space, and the first carrier plate and the second carrier plate are parallel and level.
Optionally, the first connecting structure is a slot with an opening, and the second connecting structure is an insert block; when the first carrier plate and the second carrier plate are detachably connected, the inserting block is inserted into the slot and is in interference fit with the slot.
Optionally, the first carrier plate and the second carrier plate are connected through magnetic attraction.
Optionally, the first fixing position and the second fixing position are respectively provided with a first positioning column and a second positioning column, and the first positioning column and the second positioning column are used for positioning a PCB to be processed.
Optionally, the first carrier plate and the second carrier plate are provided with a first heat dissipation hole and a second heat dissipation hole for heat dissipation.
Optionally, the first heat dissipation hole is located in and/or around the first fixing location; the second heat dissipation hole is located in and/or around the second fixing position.
The PCB jig can conveniently separate the first carrier plate from the second carrier plate when the solder paste is printed, the printing position is not easy to shift, the PCB jig can still be combined for processing in subsequent processing, and the production efficiency is ensured. Meanwhile, the first fixing position and the second fixing position are located on the same side, and machining operation is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a PCB fixture according to an embodiment of the present invention;
fig. 2 is a front view of a first carrier plate according to an embodiment of the utility model;
fig. 3 is a front view of a second carrier plate according to an embodiment of the utility model;
fig. 4 is a side view of a first carrier plate according to an embodiment of the utility model;
fig. 5 is a side view of a second carrier plate according to an embodiment of the utility model;
fig. 6 is a schematic diagram illustrating a connection between a first carrier and a second carrier according to an embodiment of the utility model;
fig. 7 is a partially enlarged view of a portion a in fig. 6.
100, a first carrier plate; 110. a first fixed position; 120. a first connecting structure; 130. a first avoidance space; 140. a first positioning post; 150. a first heat dissipation hole; 200. a second carrier plate; 210. a second fixed position; 220. a second connecting structure; 230. a second avoidance space; 240. a second positioning column; 250. a second heat dissipation hole.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present invention may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
The utility model is described in detail below with reference to the figures and alternative embodiments.
As shown in fig. 1 to 3, as an embodiment of the present invention, a PCB fixture is disclosed, which includes a first carrier 100 and a second carrier 200; the first carrier 100 is provided with a first fixing position 110, and the second carrier 200 is provided with a second fixing position 210; the first fixing position 110 and the second fixing position 210 are used for fixing a PCB to be processed; the first carrier 100 and the second carrier 200 are detachably connected, and after the first carrier 100 and the second carrier 200 are connected, the first fixing position 110 and the second fixing position 210 are located on the same side.
At present, when the double-spliced jig is used for printing solder paste, the printing position is easy to deviate due to the positioning tolerance of the jig and the PCB, and the PCB is poor in manufacture. The PCB jig is also a double-spliced jig, the first carrier plate 100 and the second carrier plate 200 can be detached, the first carrier plate 100 and the second carrier plate 200 can be temporarily separated when the solder paste is printed, then the solder paste is printed on the PCB to be processed on the first carrier plate 100 and the second carrier plate 200 respectively, and the positioning tolerance of the jig and the PCB is reduced. After the solder paste printing is completed, the first carrier 100 and the second carrier 200 are combined together for subsequent processing. Therefore, the PCB jig of the utility model can conveniently separate the first carrier plate 100 and the second carrier plate 200 when printing solder paste, the printing position is not easy to shift, the PCB jig can still be combined together for processing in the subsequent processing, and the production efficiency is ensured. Meanwhile, the first fixing position 110 and the second fixing position 210 are located on the same side, which facilitates the processing operation.
The material of the first carrier 100 and the second carrier 200 may be glass fiber material, aluminum, stainless steel, synthetic stone, etc. Before processing, the PCB to be processed is a light plate. In the SMT processing process, the PCB to be processed is fixed on the first carrier 100 and the second carrier 200, which facilitates subsequent processing. Specifically, the PCB is fixed to the first fixing portion 110 and the second fixing portion 210.
As shown in fig. 2 and 3, a first connection structure 120 is disposed on the first carrier 100, and a second connection structure 220 is disposed on the second carrier 200; the first carrier 100 and the second carrier 200 are detachably connected by the first connection structure 120 and the second connection structure 220. The first connection structure 120 and the second connection structure 220 may be various detachable connection structures that are engaged with each other, such as a snap, a screw, a magnet, a pin-hole engagement, and the like. Preferably, the first connecting structure 120 is a positioning hole, and the second connecting structure 220 is a positioning pin; when the first carrier 100 and the second carrier 200 are detachably connected, the positioning pins are inserted into the positioning holes. The cooperation of locating hole and locating pin, easy dismounting, simple structure more is applicable to the technological process operation of PCB board processing.
Specifically, there are two positioning holes, and the two positioning holes are arranged at the edge of the first carrier 100; correspondingly, the number of the positioning pins is two, and the two positioning pins are arranged at the edge of the second carrier 200 and correspond to the positioning holes. In the scheme of the present invention, the two positioning holes and the positioning pins are correspondingly matched, so that the relative positioning effect of the first carrier plate 100 and the second carrier plate 200 can be achieved, and only two positions need to be aligned during the assembling and disassembling process, so that the operation is simple and easy. Of course, in other embodiments, the number of the positioning holes and the positioning pins may be three or more, but the operation is complicated when the positioning holes and the positioning pins are assembled and disassembled.
As shown in fig. 3 to 5, the edges of the first carrier plate 100 and the second carrier plate 200 are sunken to form a first avoidance space 130 and a second avoidance space 230, respectively; the first avoidance space 130 is located on the same side as the first fixed station 110, and the second avoidance space 230 is located on the opposite side of the second fixed station 210; after the first carrier plate 100 and the second carrier plate 200 are connected, the edges of the first carrier plate 100 and the second carrier plate 200 are respectively located in the second avoidance space 230 and the first avoidance space 130, and the first carrier plate 100 is flush with the second carrier plate 200.
In this embodiment, by providing the first avoiding space 130 and the second avoiding space 230, after the first carrier board 100 and the second carrier board 200 are connected, they are in an engaged state as shown in fig. 6 and 7, and have a certain positioning effect. The first carrier plate 100 and the second carrier plate 200 are parallel and level, so that the PCB jig is smoother, more compact in structure and convenient for subsequent processing. At this time, the positioning holes and the positioning pins are located in the first avoidance space 130 and the second avoidance space 230.
On the other hand, as shown in fig. 2 and 3, a first positioning column 140 and a second positioning column 240 are respectively disposed on the first fixing station 110 and the second fixing station 210, and the first positioning column 140 and the second positioning column 240 are used for positioning a PCB to be processed. Correspondingly, a through hole matched with the first positioning column 140 or the second positioning column 240 is formed in the PCB. When the PCB is fixed, the first positioning column 140 and the second positioning column 240 are inserted into the through hole of the PCB, so that the PCB is fixed to the first fixing station 110 or the second fixing station 210. The positions and the number of the first positioning columns 140 and the second positioning columns 240 can be set according to specific needs, and are not limited herein. For example, the first positioning column 140 and the second positioning column 240 are disposed at positions corresponding to four corners of the PCB.
The first carrier 100 and the second carrier 200 are provided with a first heat dissipation hole 150 and a second heat dissipation hole 250 for dissipating heat. In the manufacturing process of the PCB, the procedures of drying, curing, reflow soldering and the like are required, and the temperature is high. The first heat dissipation hole 150 and the second heat dissipation hole 250 are disposed on the first carrier 100 and the second carrier 200, so as to facilitate heat dissipation.
Specifically, the first heat dissipation hole 150 is located in the first fixing location 110 and/or at the periphery of the first fixing location 110; the second heat dissipation hole 250 is located in the second fixing portion 210 and/or around the second fixing portion 210. In this embodiment, the first heat dissipation hole 150 may be disposed only in the first fixing portion 110, may be disposed only around the first fixing portion 110, or may be disposed in and around the first fixing portion 110 at the same time as shown in fig. 2. Similarly, the second heat dissipation hole 250 may be disposed only in the second fixing portion 210, may be disposed only around the second fixing portion 210, or may be disposed in and around the second fixing portion 210 at the same time as shown in fig. 3.
The specific number and shape of the first heat dissipation holes 150 and the second heat dissipation holes 250 may be set as required, and are not particularly limited herein. For example, the first heat dissipation hole 150 and the second heat dissipation hole 250 are circular holes.
In another embodiment, different from the above embodiments, the first connecting structure 120 may be a slot (not shown) having an opening, and the second connecting structure 220 is a plug (not shown); when the first carrier plate 100 and the second carrier plate 200 are detachably connected, the insertion block is inserted into the slot, and the insertion block and the slot are in interference fit. In this embodiment, the first carrier 100 and the second carrier 200 are detachably connected by plugging. The insert block is inserted into the slot through an opening of the slot.
In another embodiment, different from the above embodiments, the first carrier 100 and the second carrier 200 are connected by magnetic attraction. The mode of magnetism connection is inhaled makes things convenient for the dismouting very much to magnetism is inhaled and can is adsorbed by automatic alignment absorption position, alignment when omitting to connect, when connecting, only need with first carrier plate 100 with second carrier plate 200 is close to each other, just can adsorb automatically, accomplishes the connection, need not aim at. Specifically, one of the first connecting structure 120 and the second connecting structure 220 is a magnet, and the other is a magnetic member. The magnetic attraction piece can be a magnet or a metal piece capable of being magnetically attracted with the magnet. For example, the first connecting structure 120 is a magnet, and the second connecting structure 220 is an iron sheet. The first connecting structure 120 and the second connecting structure 220 may be magnets.
The foregoing is a more detailed description of the utility model in connection with specific alternative embodiments, and the practice of the utility model should not be construed as limited to those descriptions. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. A PCB jig is characterized by comprising a first carrier plate and a second carrier plate; the first carrier plate is provided with a first fixing position, and the second carrier plate is provided with a second fixing position; the first fixing position and the second fixing position are used for fixing a PCB to be processed; the first carrier plate and the second carrier plate are detachably connected, and after the first carrier plate and the second carrier plate are connected, the first fixing position and the second fixing position are located on the same side.
2. The PCB jig of claim 1, wherein the first carrier is provided with a first connecting structure, and the second carrier is provided with a second connecting structure; the first carrier plate and the second carrier plate are detachably connected through the matching of the first connecting structure and the second connecting structure.
3. The PCB board jig of claim 2, wherein the first connecting structure is a positioning hole and the second connecting structure is a positioning pin; when the first carrier plate and the second carrier plate are detachably connected, the positioning pin is inserted into the positioning hole.
4. The PCB jig of claim 3, wherein two of the positioning holes are arranged at the edge of the first carrier; correspondingly, the number of the positioning pins is two, the two positioning pins are arranged at the edge of the second carrier plate and correspond to the positioning holes.
5. The PCB jig of claim 4, wherein the edges of the first carrier plate and the second carrier plate are arranged in a sinking manner to form a first avoidance space and a second avoidance space respectively; the first avoidance space and the first fixed position are positioned on the same side, and the second avoidance space is positioned on the opposite side of the second fixed position;
after the first carrier plate and the second carrier plate are connected, the edges of the first carrier plate and the second carrier plate are respectively located in the second avoidance space and the first avoidance space, and the first carrier plate and the second carrier plate are parallel and level.
6. The PCB board jig of claim 2, wherein the first connecting structure is a slot with an opening, and the second connecting structure is an insert block; when the first carrier plate and the second carrier plate are detachably connected, the inserting block is inserted into the slot and is in interference fit with the slot.
7. The PCB board jig of claim 1, wherein the first carrier board and the second carrier board are connected by magnetic attraction.
8. The PCB jig of any one of claims 1 to 7, wherein the first fixing station and the second fixing station are respectively provided with a first positioning column and a second positioning column, and the first positioning column and the second positioning column are used for positioning a PCB to be processed.
9. The PCB board jig of any one of claims 1 to 7, wherein the first carrier board and the second carrier board are provided with a first heat dissipation hole and a second heat dissipation hole for dissipating heat.
10. The PCB board jig of claim 9, wherein the first heat dissipation hole is located in and/or around the first fixing location; the second heat dissipation hole is located in and/or around the second fixing position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120813015.5U CN215379344U (en) | 2021-04-20 | 2021-04-20 | PCB (printed circuit board) jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120813015.5U CN215379344U (en) | 2021-04-20 | 2021-04-20 | PCB (printed circuit board) jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215379344U true CN215379344U (en) | 2021-12-31 |
Family
ID=79627459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120813015.5U Active CN215379344U (en) | 2021-04-20 | 2021-04-20 | PCB (printed circuit board) jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215379344U (en) |
-
2021
- 2021-04-20 CN CN202120813015.5U patent/CN215379344U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: PCB board fixture Effective date of registration: 20221025 Granted publication date: 20211231 Pledgee: Tongren branch of China Construction Bank Corp. Pledgor: Guizhou beiyitong Technology Co.,Ltd. Registration number: Y2022520000044 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |