CN212649775U - FPC flexible board makeup - Google Patents
FPC flexible board makeup Download PDFInfo
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- CN212649775U CN212649775U CN202021121408.1U CN202021121408U CN212649775U CN 212649775 U CN212649775 U CN 212649775U CN 202021121408 U CN202021121408 U CN 202021121408U CN 212649775 U CN212649775 U CN 212649775U
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Abstract
The utility model discloses a FPC flexible board makeup, including makeup body (101), be provided with effective area (102) and invalid area (103) on makeup body (101), effective area (102) are provided with a plurality ofly, and a plurality of effective area (102) are the matrix arrangement for invalid area (103) are cross or groined type and distribute, be provided with a plurality of FPC singlets (3) that are the matrix arrangement in effective area (102). The utility model has the advantages of reasonable design, can improve FPC processing size precision for the product can satisfy the assembly requirement of VCM subassembly.
Description
Technical Field
The utility model belongs to the technical field of cell-phone camera module production, concretely relates to FPC flexbile plate makeup.
Background
As camera phones have advanced to high pixel, they have come to demand autofocus functions. In general, a user wants a camera phone having 200 ten thousand pixels or more to have an auto-focusing function. However, the traditional way is that the focusing function will greatly increase the size of the circuit board and the thickness of the mobile phone, and the pursuit of short, small, light and thin electronic products is more and more demanding in the modern times. Therefore, the high-precision VCM becomes the best choice for the mobile phone camera module. VCM (Voice Coil Motor), commonly known as voice Coil motor or voice Coil motor, the effect is the position of adjusting the camera lens, makes the video recording present the most clear state, and it has the circuit board area that occupies little, and the reliability is high, can support powerful advantage, can reduce system cost and volume, is applied to cell-phone camera auto focus in a large number at present.
The VCM subassembly mainly includes camera lens, voice coil motor, base, light filter, image sensor, flexible circuit board group spare (FPC group spare) etc. wherein, FPC group spare need carry on paster components and parts on FPC singleness in the course of working, then will whole makeup to carry out die-cut back and form single piece of product, because of the product is used for the VCM subassembly on, VCM subassembly assembly space is little, consequently has provided very high requirement to the overall dimension of FPC group spare. The existing FPC assembly process flow is as follows: processing the FPC single product on the whole jointed board → carrying out SMT paster on the FPC single product of the whole jointed board → carrying out glue dispensing, electrical property detection and the like on the FPC component of the whole jointed board → punching the whole jointed board into single products → loading the automatic machine into a delivery tray after appearance inspection. The factors influencing the overall dimension of the product mainly lie in the FPC processing dimension precision and the punching precision of the whole jointed board.
At present, FPC single products on the whole jointed board are uniformly distributed, the expansion and contraction are random, the expansion and contraction of the FPC processing precision is controlled to be +/-0.05 mm due to the influence of materials, and the deviation requirement of FPC assemblies used on VCM assemblies cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a FPC flexonics board makeup to the structural design who provides in solving above-mentioned background art is unreasonable, FPC processing size precision is low, the product can't satisfy the problem of the assembly requirement of VCM subassembly.
In order to achieve the above object, the utility model provides a following technical scheme: a FPC flexible board makeup which characterized in that: including the makeup body, be provided with active area and invalid area on the makeup body, active area is provided with a plurality ofly, and a plurality of active area are the matrix arrangement for the invalid area is cross or groined type and distributes, be provided with a plurality of FPC singlets that are the matrix arrangement in the active area.
And one side of the FPC single product is provided with an optical positioning point.
The invalid area adopts a general board common mode structure.
A plurality of positioning holes are formed in the invalid area.
The number of the effective areas is four, and each effective area is internally provided with FPC single products arranged in a 3 multiplied by 7 matrix.
Six effective areas are arranged, and each effective area is internally provided with FPC single products arranged in a 2 multiplied by 4 matrix.
Compared with the prior art, the utility model provides a VCM flexible circuit board high accuracy forming method possesses following beneficial effect:
the utility model adopts a jointed board with a special structure, which comprises a plurality of effective areas, wherein the effective areas are arranged in a matrix, so that the ineffective areas are distributed in a cross shape or a groined shape, and the expansion and shrinkage can be obviously reduced, namely, the expansion and shrinkage are reduced from +/-0.05 to +/-0.03 mm; in addition, the invalid areas distributed in a cross shape or a # -shaped shape are changed into a full-panel common mode from the existing grid plate mode, the strength of the whole jointed board can be improved, the flatness of the whole jointed board is not affected after circulation of a plurality of processes, the flexible circuit board on the whole jointed board can be flatly placed on the punching die in the punching process, the gap between the flexible circuit board and the die is reduced, and the die cutting precision is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a processing flow chart of a high-precision forming method for a VCM flexible printed circuit board provided by the present invention;
FIG. 2 is a schematic structural view of a first embodiment of a middle jointed board of the present invention;
FIG. 3 is a schematic structural view of a second embodiment of the middle jointed board of the present invention;
FIG. 4 is a schematic structural view of a dispensing device;
FIG. 5 is a schematic structural view of the adjustment mechanism of FIG. 4;
fig. 6 is a schematic structural view of a lower die of the punching die.
In the figure:
FPC flexible board splicing board 1; a panel body 101; an active area 102; an invalid region 103; an optical locating point 104; positioning holes 105;
a glue dispensing device 2; a dispensing device console 201; an adjustment mechanism 202; longitudinal rails 202.1; cross rails 202.2; the adjusting mechanism moving seat 202.3; adjusting bolts 202.4; an angle adjusting plate 202.5; a longitudinal runner 202.6; a first slide 202.7; a first lead screw 202.8; a first nut seat 202.9; a second lead screw 202.10; a second nut seat 202.11; a transverse chute 202.12; a second slider 202.13; a second motor 202.14; a glue dispensing mechanism 203; a dispensing device carrier 204; a dispensing device placement slot 205;
FPC singles 3;
a lower die 4; a lower die body 401; a vacuum adsorption assembly 402; main vacuum path pipe 402.1; vacuum bypass tubes 402.2; a nozzle head 402.3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
example one
A high-precision forming method of a VCM flexible circuit board comprises the following specific operation methods:
providing a jointed board 1 of an FPC flexible board, and processing a single FPC product on the jointed board;
the FPC flexible board jointed board 1 comprises a jointed board body 101, wherein effective areas 102 and invalid areas 103 are arranged on the jointed board body 101, the number of the effective areas 102 is four, and the four effective areas 102 are arranged in a matrix mode, so that the invalid areas 103 are distributed in a cross mode;
a plurality of FPC single products 3 arranged in a matrix manner are arranged in the effective area 102, and one side of each FPC single product 3 is provided with an optical positioning point 104;
the invalid region 103 adopts a general panel common mode structure;
a plurality of positioning holes 105 are formed in the invalid region 103;
step two, performing SMT (surface mount technology) paster on a plurality of FPC single products on the whole FPC flexible board jointed board to form a plurality of FPC assemblies;
thirdly, performing operations such as dispensing, electrical property detection and the like on a plurality of FPC assemblies of the whole FPC flexible board jointed board;
preferably, the dispensing device 2 is adopted to perform dispensing operation on a plurality of FPC assemblies;
the glue dispensing device 2 comprises a glue dispensing device operating platform 201, an adjusting mechanism 202 is arranged on the glue dispensing device operating platform 201, a glue dispensing mechanism 203 is arranged on a rear side frame of the adjusting mechanism 202, a material conveying mechanism is arranged on a front side frame of the adjusting mechanism 202, a glue dispensing device carrying platform 204 is arranged on the adjusting mechanism 202, a glue dispensing device placing groove 205 is arranged on the glue dispensing device carrying platform 204, a semi-finished product to be subjected to glue dispensing is placed in the glue dispensing device placing groove 205, the adjusting mechanism 202 is used for adjusting the semi-finished product to be subjected to glue dispensing to a plurality of angle positions which are beneficial to glue flowing, different varieties adopt different angle positions so that the glue can naturally flow to the periphery and the bottom of an IC, and the material conveying mechanism is used for conveying a finished product subjected to glue dispensing to a next process and waiting for quality inspection;
the adjusting mechanism 202 comprises a longitudinal guide rail 202.1 arranged on the top surface of the operating platform 201 of the glue dispensing device, a transverse guide rail 202.2 is connected to the longitudinal guide rail 202.1 in a sliding manner, an adjusting mechanism moving base 202.3 is connected to the transverse guide rail 202.2 in a sliding manner, adjusting bolts 202.4 which are upwards screwed penetrate through four corners of the adjusting mechanism moving base 202.3, an angle adjusting plate 202.5 is arranged between the top ends of the four adjusting bolts 202.4, and a glue dispensing device carrying platform 204 is arranged on the angle adjusting plate 202.5;
the top surface of the longitudinal guide rail 202.1 is provided with two longitudinal sliding grooves 202.6 which are parallel left and right, a first sliding block 202.7 is arranged in the longitudinal sliding groove 202.6, and the first sliding block 202.7 is connected with the bottom surface of the transverse guide rail 202.2;
a first screw rod 202.8 is arranged in the middle of the longitudinal guide rail 202.1 along the length direction of the longitudinal guide rail, a first motor is arranged at one end of the first screw rod 202.8, a first nut seat 202.9 is arranged on the first screw rod 202.8, and the first nut seat 202.9 is connected with the bottom surface of the transverse guide rail 202.2;
the top surface of the transverse guide rail 202.2 is provided with two transverse sliding grooves 202.12 which are parallel front and back, a second sliding block 202.13 is arranged in the transverse sliding groove 202.12, and the second sliding block 202.13 is connected with the bottom surface of the adjusting mechanism moving seat 202.3;
a second lead screw 202.10 is arranged in the middle of the transverse guide rail 202.2 along the length direction thereof, a second motor 202.14 is arranged at one end of the second lead screw 202.10, a second nut seat 202.11 is arranged on the second lead screw 202.10, and the second nut seat 202.11 is connected with the bottom surface of the adjusting mechanism moving seat 202.3;
step four, punching the whole jointed board into a single product by adopting a punching die;
the punching die comprises an upper die and a lower die 4, the whole jointed board is placed on the lower die 4, the upper die moves downwards to be matched with the lower die 4 for punching, a plurality of single products are separated from the jointed board body, the punched single products are adsorbed on the upper die, and the single products are manually unloaded through a carrier and transferred to the next process;
preferably, the lower mold 4 comprises a lower mold body 401, a vacuum adsorption component 402 is embedded in the lower mold body 401, the vacuum adsorption component 402 comprises a main vacuum path pipe 402.1 and a branch vacuum path pipe 402.2, the main vacuum path pipe 402.1 is provided with a left end and a right end, one end of the main vacuum path pipe 402.1 is connected with an air source through a pipeline, the other end of the main vacuum path pipe 402.1 is communicated with the branch vacuum path pipe 402.2, and the left end and the right end of the branch vacuum path pipe 402.2 are both provided with a nozzle 402.3;
and step five, carrying out appearance inspection on a plurality of single products, and then loading the single products into a delivery tray through an automatic machine.
The expansion and contraction coefficients and the process capability index (cpk) of the FPC flexible board jointed board (comprising four effective areas, and FPC single products arranged in a 3X 7 matrix are distributed in each effective area) and the original FPC flexible board jointed board (FPC single products arranged in an 8X 16 matrix) are shown in the following table:
| specification of jointed board | Coefficient of expansion and contraction | Index of process capability |
| 4×(3×7) | ±0.027 | 1.2 |
| 8×16 | ±0.048 | 0.3 |
Example two
The difference between this embodiment and the first embodiment is: the FPC flexible board jointed board 1 in the first step comprises a jointed board body 101, wherein effective areas 102 and ineffective areas 103 are arranged on the jointed board body 101, six effective areas 102 are arranged, and the six effective areas 102 are arranged in a matrix mode, so that the ineffective areas 103 are distributed in a # -shaped mode.
The expansion and contraction coefficients and the process capability index (cpk) of the FPC flexible board jointed board (comprising six effective areas, and FPC single products arranged in a 2X 4 matrix are distributed in each effective area) and the original FPC flexible board jointed board (FPC single products arranged in an 8X 16 matrix) are shown in the following table:
| specification of jointed board | Coefficient of expansion and contraction | Index of process capability |
| 6×(2×4) | ±0.029 | 1.4 |
| 8×16 | ±0.048 | 0.3 |
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A FPC flexible board makeup which characterized in that: including makeup body (101), be provided with effective area (102) and invalid region (103) on makeup body (101), effective area (102) are provided with a plurality ofly, and a plurality of effective area (102) are the matrix arrangement for invalid region (103) are cross or groined type and distribute, be provided with a plurality of FPC singlets (3) that are the matrix arrangement in effective area (102).
2. An FPC flexible board splicing board according to claim 1, characterized in that: one side of the FPC single product (3) is provided with an optical positioning point (104).
3. An FPC flexible board splicing board according to claim 1, characterized in that: the invalid region (103) adopts a general panel common mode structure.
4. An FPC flexible board splicing board according to claim 1, characterized in that: a plurality of positioning holes (105) are formed in the invalid region (103).
5. An FPC flexible board splicing board according to claim 1, characterized in that: the number of the effective areas (102) is four, and each effective area (102) is internally provided with FPC single products (3) which are arranged in a 3 multiplied by 7 matrix.
6. An FPC flexible board splicing board according to claim 1, characterized in that: six effective areas (102) are arranged, and each effective area (102) is internally provided with FPC single products (3) arranged in a 2 multiplied by 4 matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021121408.1U CN212649775U (en) | 2020-06-17 | 2020-06-17 | FPC flexible board makeup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021121408.1U CN212649775U (en) | 2020-06-17 | 2020-06-17 | FPC flexible board makeup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212649775U true CN212649775U (en) | 2021-03-02 |
Family
ID=74770981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021121408.1U Active CN212649775U (en) | 2020-06-17 | 2020-06-17 | FPC flexible board makeup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212649775U (en) |
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2020
- 2020-06-17 CN CN202021121408.1U patent/CN212649775U/en active Active
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