CN108990252A - Flexible circuit board, plug finger and its forming method - Google Patents
Flexible circuit board, plug finger and its forming method Download PDFInfo
- Publication number
- CN108990252A CN108990252A CN201710414698.5A CN201710414698A CN108990252A CN 108990252 A CN108990252 A CN 108990252A CN 201710414698 A CN201710414698 A CN 201710414698A CN 108990252 A CN108990252 A CN 108990252A
- Authority
- CN
- China
- Prior art keywords
- finger
- plug
- flitch
- mark point
- perforating press
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0266—Marks, test patterns or identification means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0008—Apparatus or processes for manufacturing printed circuits for aligning or positioning of tools relative to the circuit board
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/04—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed mechanically, e.g. by punching
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/03—Metal processing
- H05K2203/033—Punching metal foil, e.g. solder foil
Abstract
The present invention provides a kind of plug finger forming methods, include the following steps: the setting flag point on finger flitch；Perforating press grabs the finger flitch；The perforating press is punched the finger flitch according to the position of the mark point and forms plug finger.Plug finger at the time of molding, directly pass through perforating press punching molding, eliminate the step of automatic moulding perforating press rushes location hole, effective solution plugs the problem that finger molding need to be molded and punching location hole causes accumulated tolerance big at present, punching location hole bring trueness error can be reduced in this way, so as to which the accuracy tolerance of the golden finger and marginal position that plug the marginal position of finger is reduced to ± 0.05mm, guarantee the precision of plug finger, meet client technologies demand, simultaneously, also ensure that the process capability index of plug finger is controlled 1.33 or more, and then guarantee the qualification rate of plug mobile phone products.The present invention also provides a kind of flexible circuit board and plug fingers.
Description
Technical field
The present invention relates to flexible circuit board technical field, more particularly to a kind of flexible circuit board, plug finger and its at
Type method.
Background technique
For the plug finger in current FPC flexible circuit board, arrived by plugging finger when accurate steel form moulding
The tolerance of shape is managed according to ± 0.07mm, by the tolerance of plug finger when simple steel form moulding to shape according to ± 0.10mm
Control.With the raising of technical level, the tolerance of plug finger to shape is also gradually required strictly, while also to guarantee processing procedure
Ability is illustrated by taking accurate steel form moulding as an example, due to the i.e. current accurate punching block contour tolerance of the limitation of mold process capability
For ± 0.05mm, contour tolerance is ± 0.10mm, while mold molding needs to cover location hole, and location hole needs perforating press to go out,
Perforating press precision is ± 0.025mm, and which limit the tolerance of plug finger to shape production precision, that is, current minimal tolerances to be
+/- 0.07mm is not able to satisfy the requirement of client's higher precision, influence using.
Summary of the invention
Based on this, it is necessary to need to be molded for current plug finger molding and punching location hole causes to add up
Tolerance is big, is not able to satisfy the problem of customer specification, provide one kind can be improved plug finger precision, reduce cumulative limit,
Meet the plug finger forming method of customer specification, while also providing a kind of using the molding of above-mentioned plug finger forming method
Plug finger, and the flexible circuit board containing above-mentioned plug finger.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of plug finger forming method, includes the following steps:
The setting flag point on finger flitch；
Perforating press grabs the finger flitch；
The perforating press is punched the finger flitch according to the position of the mark point and forms plug finger.
The step of perforating press crawl finger flitch includes the following steps: in one of the embodiments,
The perforating press scans the mark point on the finger flitch；
The perforating press grabs the finger flitch according to the position of the mark point.
The perforating press is punched the finger flitch according to the position of the mark point and is formed in one of the embodiments,
The step of plugging finger includes the following steps:
The finger flitch is placed on molding die by the perforating press；
The mark point on the finger flitch corresponds to the base position of the molding die；
The perforating press is punched the finger flitch, forms the plug finger.
The finger flitch includes plug finger and non-plug finger flitch, the label in one of the embodiments,
Point is located on the non-plug finger flitch.
The range of distance is between the mark point and the outer profile of the plug finger in one of the embodiments,
0.1mm~0.5mm.
The quantity of the mark point is multiple in one of the embodiments, and multiple mark points, which are located at, to be surrounded
The setting of the plug finger.
The quantity of the mark point is even number in one of the embodiments, and mark point described in even number is symmetrical
In the two sides of the plug finger.
The mark point protrudes the surface setting of the finger flitch in one of the embodiments, and the mark point is convex
Out finger flitch surface with a thickness of 0.05mm~0.8mm；
Alternatively, coating gold-plated or plating copper coating at the mark point.
A kind of plug finger is further related to, is formed using plug finger forming method described in any of the above-described technical characteristic,
The margin of tolerance between the golden finger of the plug finger edge and the plug finger outer profile is less than or equal to ± 0.05mm.
A kind of flexible circuit board is further related to, the plug finger including substrate and as described in above-mentioned technical characteristic, the substrate
Upper to have finger section, the plug finger mounted is in the finger section.
After adopting the above technical scheme, the invention has the benefit that
Flexible circuit board, plug finger and its forming method of the invention, sets on the finger flitch of molding plug finger
Tagging point, when plugging finger processing and forming, perforating press grabs finger flitch, and is rushed according to the position of mark point on finger flitch
It cuts finger flitch and forms plug finger.Plug finger of the invention at the time of molding, directly by perforating press punching molding, eliminates
The step of automatic moulding perforating press rushes location hole, effective solution plug finger molding at present and need to be molded and punching
The problem that location hole causes accumulated tolerance big can reduce punching location hole bring trueness error, in this way so as to insert
The accuracy tolerance of the golden finger and marginal position that pull out the marginal position of finger is reduced to ± 0.05mm, guarantees the essence of plug finger
Degree, meets client technologies demand, simultaneously, moreover it is possible to guarantee that the process capability index of plug finger is controlled in 1.33 or more, Jin Erbao
The qualification rate of card plug mobile phone products.
Detailed description of the invention
Fig. 1 is the flow chart of the plug finger forming method of one embodiment of the invention；
Fig. 2 is the structural schematic diagram of the plug finger of one embodiment of the invention；
Fig. 3 is the flow chart that perforating press grabs finger flitch in plug finger forming method shown in FIG. 1；
Fig. 4 is punched finger flitch shape according to the position of mark point for perforating press in plug finger forming method shown in FIG. 1
At the flow chart of plug finger；
Wherein:
100- plugs finger；
110- golden finger；
120- outer profile.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached
Flexible circuit board of the invention, plug finger and its forming method is further elaborated in figure.It should be appreciated that herein
Described specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1 and Fig. 2, Fig. 1 is the flow chart of the plug finger forming method of one embodiment of the invention, and Fig. 2 is this hair
The structural schematic diagram of the plug finger of a bright embodiment.The present invention provides a kind of plug finger forming methods, using the plug
Finger forming method can form the plug finger 100 of flexible circuit board.It is punched using plug finger forming method of the invention
Molding finger can eliminate the step of automatic moulding perforating press rushes location hole, and effective solution plugs finger molding at present to lead to
The problem that mold forms and punching location hole causes accumulated tolerance big is crossed, punching location hole bring precision can be reduced in this way
Error, so as to by plug finger 100 the golden finger 110 of marginal position and the accuracy tolerance of marginal position be reduced to ±
0.05mm guarantees the precision of plug finger 100, meets client technologies demand, simultaneously, moreover it is possible to guarantee the processing procedure of plug finger 100
Capability index control guarantees the qualification rate of plug mobile phone products 1.33 or more.
In the present invention, plug finger forming method includes the following steps:
The setting flag point on finger flitch；
Perforating press grabs finger flitch；
Perforating press is punched finger flitch according to the position of mark point and forms plug finger 100.
The first setting flag point on the finger flitch for forming plug finger 100, mark point can be known convenient for perforating press
Other finger flitch.Then, perforating press grabs finger flitch, and is punched finger flitch according to the position of mark point on finger flitch,
Form plug finger 100.That is, plug finger 100 of the invention is at the time of molding, is positioned, avoided by mark point
The step of by automatic moulding perforating press punching location hole.At this point, the golden finger 110 of the marginal position of plug finger 100 and outer
Tolerance when tolerance between profile 120 is perforating press punching finger flitch, when being no longer perforating press punching finger flitch
The accumulated tolerance of tolerance and automatic moulding perforating press punching location hole can reduce the marginal position of plug finger 100 in this way
Tolerance between golden finger 110 and outer profile 120 improves the machining accuracy of plug finger 100, and then the technology for meeting client is wanted
It asks.It should be noted that the perforating press in the present invention for being punched finger flitch is full-automatic accurate forming and punching machine, certainly,
In other embodiments of the invention, the punching that other kinds of punching apparatus realizes finger flitch can also be used, as long as energy
Tolerance between the golden finger 110 and outer profile 120 of enough marginal positions for guaranteeing plug finger 100 is within the required range.
In the present embodiment, after using plug finger forming method molding plug finger 100 of the invention, finger is plugged
100 as shown in Fig. 2, at this point, the golden finger 110 of the marginal position of plug finger 100 is between plug 100 outer profile 120 of finger
Distance be 0.25 ± 0.05mm.Certainly, in other embodiments of the invention, the gold of the marginal position of finger 100 is plugged
Finger 110 can also be adjusted to the distance between 100 outer profile 120 of finger is plugged according to different use occasions, still
The golden finger 110 for plugging the marginal position of finger 100 should also meet to the tolerance between plug 100 outer profile 120 of finger to be less than
Equal to the requirement of ± 0.05mm.
Plug finger forming method of the invention passes through mark point by the preforming setting flag point on finger flitch
Replacement resetting location hole is positioned, and perforating press is when being punched finger flitch, without carrying out by the step of punching location hole
Positioning, improves the form accuracy of plug finger 100, and then ensure that the golden finger 110 of the marginal position of plug finger 100 and outer
Tolerance between profile 120 is less than or equal to ± 0.05mm, meets the technical requirements of client.Moreover, plug finger 100 of the invention
After the molding of above-mentioned plug finger forming method, since only control plug finger 100 need to be facilitated by perforating press punching molding
Marginal position golden finger 110 and outer profile 120 between tolerance grade, and then can guarantee plug finger 100 product
Qualification rate, to meet requirement of the process capability index control 1.33 or more.
Referring to Fig. 3, Fig. 3 is the flow chart that perforating press grabs finger flitch in plug finger forming method shown in FIG. 1.Into
The step of one step, perforating press crawl finger flitch, includes the following steps:
Perforating press scans the mark point on finger flitch；
Perforating press grabs finger flitch according to the position of mark point.
Mark point be for being positioned to finger flitch convenient for perforating press, be functionally equivalent to punching location hole into
Row positioning, still, bring error when mark point is also avoided that punching location hole, to improve the formed precision of plug finger 100,
And then guarantee to plug the tolerance grade between the golden finger 110 and outer profile 120 of the marginal position of finger 100.Perforating press is being grabbed
When taking finger flitch, perforating press first scans the position of mark point on finger flitch, then grabs finger according to the position of mark point
Flitch can position finger flitch in this way convenient for perforating press, to guarantee positioning accuracy when perforating press punching finger flitch, in turn
Convenient for the tolerance grade between the golden finger 110 and outer profile 120 of the marginal position of control plug finger 100, to meet client
Technical requirements.
Referring to fig. 4, Fig. 4 is punched hand according to the position of mark point for perforating press in plug finger forming method shown in FIG. 1
Refer to that flitch forms the flow chart of plug finger 100.Still further, perforating press is punched finger flitch shape according to the position of mark point
Include the following steps: at the step of plug finger 100
Finger flitch is placed on molding die by perforating press；
Mark point on finger flitch corresponds to the base position of molding die；
Perforating press is punched finger flitch, molding plug finger 100.
Perforating press carries out processing and forming to plug finger 100 when punching plugs finger 100, through molding die, in this way
The molding of plug finger 100 can be facilitated.Moreover, molding die can pre- interpolation pull out finger 100 marginal position golden finger
The distance between 110 and outer profile 120, so that between the golden finger 110 and outer profile 120 of the marginal position of plug finger 100
Tolerance be the upper limit or lower limit, and then guarantee plug finger 100 marginal position golden finger 110 and outer profile 120 between
Tolerance in the range of requiring, guarantee plug finger 100 formed precision, while be also able to satisfy process capability index 1.33 with
On, meet customer specification.Meanwhile mark point is corresponding with the base position on molding die, it can be convenient for finger flitch
Positioning, and then guarantee the formed precision of plug finger 100.
As an embodiment, finger flitch includes plug finger 100 and non-100 flitch of plug finger, mark point
On non-100 flitch of plug finger.Finger flitch is for forming plug finger 100, and perforating press is punched finger flitch shape
After plug finger 100, the remaining waste material of finger flitch is non-100 flitch of plug finger, and mark point is located at non-plug finger
On 100 flitch.In this way, perforating press finger flitch is punched out to be formed plug finger 100 after, plug finger 100 on will not
There are mark points, then will not influence the service performance of plug finger 100, while also ensuring the molding essence of plug finger 100
Degree.
Further, the range of distance is 0.1mm~0.5mm between mark point and the outer profile 120 for plugging finger 100.
Intervention can be facilitated to refer to the positioning of flitch in this way, simultaneously, moreover it is possible to perforating press be avoided to touch mark point and shadow when being punched finger flitch
Ring the formed precision of plug finger 100.Still further, the quantity of mark point be it is multiple, multiple mark points, which are located at, to be surrounded
Plug the setting of finger 100.Multiple mark points can be improved the positioning accuracy of finger flitch, and then improve plug finger 100
Formed precision guarantees the tolerance between the golden finger 110 and outer profile 120 of the marginal position of plug finger 100 in desired model
In enclosing, meet the technical requirements of client.Certainly, in other embodiments of the invention, the quantity of mark point is even number, even
Several mark points are symmetrically distributed in the two sides of plug finger 100.In this way finger can be improved further convenient for finger flitch to just
The positioning accuracy of flitch, and then the formed precision of plug finger 100 is improved, guarantee the golden hand of the marginal position of plug finger 100
Refer to that the tolerance between 110 and outer profile 120 in the range of requiring, meets the technical requirements of client.
Further, the surface setting of mark point protrusion finger flitch.Perforating press can be facilitated to identify mark point in this way
Position, and then be convenient for finger flitch positioning, with guarantee plug finger 100 formed precision.Preferably, mark point protrudes hand
Refer to flitch surface with a thickness of 0.05mm~0.8mm, to facilitate the position of perforating press identification mark point.Certainly, of the invention
The coating of the materials such as gold-plated or copper facing coating is coated in other embodiments, at mark point.It can also be swept in this way convenient for perforating press
The position of automatic identification mark point is retouched, and then is convenient for the positioning of finger flitch, to guarantee the formed precision of plug finger 100.It needs
It is noted that the shape of mark point is unrestricted in principle, it can be round, annular, rectangular or other shapes, as long as energy
Requirement can be met by enough facilitating the position of perforating press identification mark point.
The present invention also provides a kind of plug fingers 100, and the plug finger 100 is using the plug finger in above-described embodiment
Forming method molding, the margin of tolerance plugged between the golden finger 110 of finger frontside edge and plug 100 outer profile 120 of finger are small
In equal to ± 0.05mm.After forming plug finger 100 using above-mentioned plug finger forming method, it can guarantee to plug finger 100
Marginal position golden finger 110 and plug finger 100 outer profile 120 between tolerance grade, to improve plug finger 100
Formed precision meets the technical requirements of client, while being also able to satisfy requirement of the process capability index 1.33 or more.
The present invention also provides a kind of flexible circuit boards, including the plug finger 100 in substrate and above-described embodiment, substrate
Upper to have finger section, plug finger 100 is installed in finger section.The essence that flexible circuit board of the invention passes through plug finger 100
The reliability of degree improved to guarantee flexible circuit board work, guarantees service performance.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the record scope of this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of plug finger forming method, which comprises the steps of:
The setting flag point on finger flitch；
Perforating press grabs the finger flitch；
The perforating press is punched the finger flitch according to the position of the mark point and forms plug finger.
2. plug finger forming method according to claim 1, which is characterized in that the perforating press crawl finger flitch
Step includes the following steps:
The perforating press scans the mark point on the finger flitch；
The perforating press grabs the finger flitch according to the position of the mark point.
3. plug finger forming method according to claim 1, which is characterized in that the perforating press is according to the mark point
Position be punched the step of finger flitch forms plug finger and include the following steps:
The finger flitch is placed on molding die by the perforating press；
The mark point on the finger flitch corresponds to the base position of the molding die；
The perforating press is punched the finger flitch, forms the plug finger.
4. plug finger forming method according to claim 1, which is characterized in that the finger flitch includes plug finger
And non-plug finger flitch, the mark point are located on the non-plug finger flitch.
5. plug finger forming method according to claim 4, which is characterized in that the mark point and the plug finger
Outer profile between distance range be 0.1mm~0.5mm.
6. plug finger forming method according to claim 4, which is characterized in that the quantity of the mark point be it is multiple,
Multiple mark points are located at the setting around the plug finger.
7. plug finger forming method according to claim 4, which is characterized in that the quantity of the mark point is even number
A, mark point described in even number is symmetrically distributed in the two sides of the plug finger.
8. plug finger forming method according to any one of claims 1 to 7, which is characterized in that the mark point protrusion
The surface of the finger flitch is arranged, the mark point protrude finger flitch surface with a thickness of 0.05mm~0.8mm；
Alternatively, coating gold-plated or plating copper coating at the mark point.
9. a kind of plug finger, which is characterized in that using the described in any item plug finger forming methods of claim 1 to 8 at
Type, it is described plug finger edge golden finger and it is described plug finger outer profile between the margin of tolerance be less than or equal to ±
0.05mm。
10. a kind of flexible circuit board, which is characterized in that plug finger, the substrate including substrate and as claimed in claim 9
Upper to have finger section, the plug finger mounted is in the finger section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414698.5A CN108990252A (en) | 2017-06-05 | 2017-06-05 | Flexible circuit board, plug finger and its forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710414698.5A CN108990252A (en) | 2017-06-05 | 2017-06-05 | Flexible circuit board, plug finger and its forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108990252A true CN108990252A (en) | 2018-12-11 |
Family
ID=64501838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710414698.5A Pending CN108990252A (en) | 2017-06-05 | 2017-06-05 | Flexible circuit board, plug finger and its forming method |
Country Status (1)
| Country | Link |
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| CN205378349U (en) * | 2015-12-21 | 2016-07-06 | 深圳市精诚达电路科技股份有限公司 | Plug golden finger |
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Application publication date: 20181211 |
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| RJ01 | Rejection of invention patent application after publication |