CN115279033B - Method for manufacturing beer pit by PCB - Google Patents
Method for manufacturing beer pit by PCB Download PDFInfo
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- CN115279033B CN115279033B CN202210914838.6A CN202210914838A CN115279033B CN 115279033 B CN115279033 B CN 115279033B CN 202210914838 A CN202210914838 A CN 202210914838A CN 115279033 B CN115279033 B CN 115279033B
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- beer
- pit
- hole
- explosion
- molded
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- 235000013405 beer Nutrition 0.000 title claims abstract description 298
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000013461 design Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 description 29
- LAXBNTIAOJWAOP-UHFFFAOYSA-N 2-chlorobiphenyl Chemical compound ClC1=CC=CC=C1C1=CC=CC=C1 LAXBNTIAOJWAOP-UHFFFAOYSA-N 0.000 description 16
- 101710149812 Pyruvate carboxylase 1 Proteins 0.000 description 16
- 238000000465 moulding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or 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
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- 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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The embodiment of the invention provides a method for manufacturing beer pits by a PCB, which comprises the following steps: analyzing the size and the position of a beer pit to be molded on a PCB, and dividing the beer pit into a first type beer pit to be molded which can be directly molded and a second type beer pit to be molded after an explosion-proof hole is needed to be molded by combining the position relation of the beer pit to be molded and an adjacent reference object; determining the forming parameters of each explosion-proof hole; forming the explosion-proof hole according to the forming parameters; and (5) stamping and forming all the beer pits by using a die. According to the embodiment of the invention, the beer pit on the PCB is divided into the first type beer pit to be formed and the second type beer pit to be formed, the processing difficulty of the first type beer pit to be formed is small, the beer pit with high pit mouth edge quality can be formed by directly adopting the traditional die stamping forming process, and the production efficiency is high; and then setting explosion-proof holes for the second class of beer pits to be formed, forming the explosion-proof holes, and then stamping and forming the beer pits by using a die, so that the production efficiency is ensured, and a high-quality PCB (printed circuit board) can be obtained.
Description
Technical Field
The embodiment of the invention relates to the technical field of PCB processing, in particular to a method for manufacturing beer pits by using a PCB.
Background
In order to assemble electronic components at corresponding positions of a printed circuit on a PCB board, it is generally necessary to perform a beer-molding operation on the PCB board to form corresponding beer wells for mounting the electronic components. However, with the miniaturization development of electronic components, the beer pit on the PCB board also becomes smaller correspondingly, and the larger the force applied to the position of the PCB board corresponding to the beer pit formed by the conventional mold for stamping the beer pit is, the more easily damage the area around the beer pit, for example, a white edge is formed at the edge of the beer pit to damage the surface plate, and the more serious the PCB board is broken to burst the plate. In particular, in order to avoid damage to the plate surface caused by stamping and forming the beer pit by using a die, the beer pit is formed by adopting a milling method or a method for reducing the stamping times of the die, and the method can manufacture a PCB with high pit edge quality, but the processing efficiency is greatly reduced, and the preset productivity cannot be maintained.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide the method for manufacturing the beer pits of the PCB, which can effectively avoid the damage to the PCB surface caused by the stamping and forming of the beer pits by the die.
In order to solve the technical problems, the embodiment of the invention provides the following technical scheme: a method for manufacturing beer pits by using a PCB (printed Circuit Board) comprises the following steps:
Analyzing the size and the position of a beer pit to be molded on a PCB according to design data of the PCB, dividing the beer pit to be molded into a first type beer pit to be molded directly and a second type beer pit to be molded after a explosion-proof hole is formed in a region of the beer pit to be molded by combining the beer pit to be molded with a position relation of an adjacent reference object on the PCB, wherein the reference object comprises at least one of the following structures: lines, finished holes, other beer pits to be molded or PCB board boundaries;
determining forming parameters of forming the explosion-proof holes in each second-class beer pit to be formed, wherein the forming parameters comprise the positions of forming the explosion-proof holes in the area of the second-class beer pit to be formed and the sizes of the explosion-proof holes to be formed;
forming the explosion-proof holes in each second type of beer pit to be formed according to the forming parameters; and
And stamping and forming beer pits at the positions of the first type beer pits to be formed and the second type beer pits to be formed on the PCB respectively by utilizing a die.
Further, the beer pit to be formed which does not conform to the following conditions is divided into a first type of beer pit to be formed, and the beer pit to be formed which conforms to one of the following conditions is divided into a second type of beer pit to be formed:
condition 1: the beer pit to be formed can completely comprise a square area with the side length being more than 0.8mm and less than 2mm or a round area with the diameter being more than 0.8mm and less than 2.0 mm;
Condition 2: the distance between the edge of the beer pit to be molded and the nearest line is less than or equal to 15mil;
condition 3: the distance between the edge of the beer pit to be molded and the nearest line is more than 15mil, and the beer pit to be molded can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3 mm;
Condition 4: the distance between the edge of the beer pit to be molded and the nearest boundary of the PCB is less than or equal to 2mm;
Condition 5: the distance between the edge of the beer pit to be formed and the nearest boundary of the PCB is more than 2mm, and the beer pit can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3 mm;
condition 6: the distance between the edge of the beer pit to be molded and the nearest finished hole is less than or equal to 1mm;
Condition 7: the distance between the edge of the beer pit to be formed and the closest other beer pits to be formed is less than or equal to 2mm; or condition 8: the beer pit to be formed is a long beer pit with the width smaller than or equal to 2mm and the length-width ratio larger than 2.
Further, the second class of beer pits to be formed meeting the condition 1 are processed as follows: and forming a circular hole or a long groove hole at the center of the second-class beer pit to be formed as a explosion-proof hole, wherein the minimum distance between the edge of the explosion-proof hole and the edge of the second-class beer pit to be formed is 2mil.
Further, the second class beer well to be formed meeting the condition 2 or the condition 4 is processed as follows:
when the second-class beer pit to be formed can be completely contained in a square area with the side length of 3mm or a round area with the diameter of 3mm, forming a round hole at the center of the second-class beer pit to be formed as a explosion-proof hole, wherein the minimum distance between the edge of the explosion-proof hole and the edge of the second-class beer pit to be formed is 2mil;
When the second-class beer pit to be formed can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3mm, forming a long slot hole with the width of 1mm in the second-class beer pit to be formed as the explosion-proof hole, wherein the minimum distance between one side edge of the long slot hole, which is close to the circuit or the boundary of the PCB serving as a reference, and two side edges adjacent to the side edges and pit edges at the corresponding side of the second-class beer pit to be formed is 2mil.
Further, the second class of beer pits to be molded, which meet the condition 3 or the condition 5, are processed as follows: and forming a circular hole or a long groove hole at the center of the second-class beer pit to be formed as the explosion-proof hole, wherein the minimum distance between the edge of the explosion-proof hole and the edges of each side of the second-class beer pit to be formed is 2mil.
Further, the second class beer well to be formed meeting the condition 6 is processed as follows:
When the diameter of the finished product hole is smaller than or equal to 2mm, forming a circular hole with the same diameter as the diameter of the finished product hole in the second type beer pit to be formed as the explosion-proof hole, wherein the explosion-proof hole is tangent to the edge of the second type beer pit to be formed, which is close to the finished product hole, and the connecting line of the explosion-proof hole and the circle center of the finished product hole passes through the tangent point of the explosion-proof hole and the edge of the second type beer pit to be formed, which is close to the finished product hole;
When the diameter of the finished hole is larger than 2mm, forming a long slot hole in the second class of beer pit to be formed as the explosion-proof hole, wherein the width of the long slot hole is the same as the diameter of the finished hole, the length of the long slot hole is larger than that of the long slot hole with the diameter of more than 1mm, and the connecting line between the center of the long slot hole and the center of the finished hole is perpendicular to the side edge of the long slot hole adjacent to one side of the finished hole.
Further, the second class beer well to be formed meeting the condition 7 is processed as follows: and forming a round hole at one end of the second-class beer pit close to the closest other beer pits to be formed as the explosion-proof hole, wherein the diameter of the explosion-proof hole is the same as the width of the second-class beer pit and tangent to the corresponding end edge of the second-class beer pit.
Further, the second class beer well to be formed meeting the condition 8 is processed as follows:
When the length of the long beer pit is smaller than or equal to 25mm, forming a circular hole with the diameter equal to the width of the long beer pit at two ends of the long beer pit as the explosion-proof hole, wherein the explosion-proof hole is tangent to the corresponding end edge of the long beer pit;
When the length of the long beer pit is larger than 25mm, forming a plurality of circular holes with the diameter equal to the width of the long beer pit at the two ends and the middle of the long beer pit respectively to serve as explosion-proof holes, wherein the explosion-proof holes at the two ends of the long beer pit are tangent to the corresponding end edges of the long beer pit, and the distance between the explosion-proof holes at the middle of the long beer pit and the circle center of one adjacent explosion-proof hole is 20mm.
After the technical scheme is adopted, the embodiment of the invention has at least the following beneficial effects: according to the embodiment of the invention, the beer pit to be molded on the PCB is divided into the first type beer pit to be molded and the second type beer pit to be molded by analyzing the size and the position of the beer pit to be molded on the PCB and combining the position relation between the beer pit to be molded and the adjacent reference on the PCB, the processing difficulty of the beer pit to be molded of the first type is small, the beer pit with high pit mouth edge quality can be molded by directly adopting the traditional die stamping molding process, and the production efficiency is high; setting explosion-proof holes for a second type of beer pit to be formed, which is damaged on the surface of a PCB board by directly adopting a die stamping forming process, forming the explosion-proof holes in the second type of beer pit to be formed after determining parameters of the explosion-proof holes, effectively removing most of stress in the beer pit in the subsequent die stamping forming process, greatly reducing the impact force of die stamping forming on the surrounding area of the second type of beer pit, reducing the damage degree of die stamping on the pit mouth edge surface of the beer pit, and improving the yield of the PCB board; not only ensures the production efficiency, but also can obtain high-quality PCB.
Drawings
Fig. 1 is a schematic flow chart of steps of an alternative embodiment of a method for manufacturing beer pits by using a PCB board according to the present invention.
Fig. 2 is a schematic diagram showing explosion protection hole arrangement in a beer pit to be molded of a second type in another alternative embodiment of the method for manufacturing beer pits by using a PCB board according to the present invention.
Fig. 3 is a schematic diagram showing explosion protection hole arrangement in a beer pit to be molded in a second class in an alternative embodiment of the method for manufacturing beer pits by using a PCB board according to the present invention.
Fig. 4 is a schematic diagram showing explosion protection hole arrangement in a beer pit to be molded in a second class of alternative embodiment of the method for manufacturing beer pits by using a PCB board according to the present invention.
Fig. 5 is a schematic diagram showing explosion protection hole arrangement in a beer pit to be molded in a second class of alternative embodiment of the method for manufacturing beer pits by using a PCB board according to the present invention.
Detailed Description
The application will be described in further detail with reference to the drawings and the specific examples. It should be understood that the following exemplary embodiments and descriptions are only for the purpose of illustrating the application and are not to be construed as limiting the application, and that the embodiments and features of the embodiments of the application may be combined with one another without conflict.
As shown in fig. 1, an alternative embodiment of the present invention provides a method for manufacturing beer pits by using a PCB board, including the following steps:
s1: analyzing the size and the position of a beer pit 10 to be molded on the PCB 1 according to design data of the PCB 1, and dividing the beer pit 10 to be molded into a first type beer pit 101 to be molded directly and a second type beer pit 103 to be molded after a explosion-proof hole 1030 is formed in the area of the beer pit 10 to be molded by combining the position relation between the beer pit 10 to be molded and an adjacent reference object on the PCB 1, wherein the reference object comprises at least one of the following structures: the circuit 12, the finished hole 14, other beer pits 10 to be molded or the boundary of the PCB 1;
S2: determining forming parameters of forming the explosion protection hole 1030 in each second-type beer well 103 to be formed, wherein the forming parameters comprise the position of forming the explosion protection hole 1030 in the area of the second-type beer well 103 to be formed and the size of the explosion protection hole 1030 to be formed;
s3: forming the explosion protection hole 1030 in each beer pit 103 to be formed in the second type according to the forming parameters;
S4: and stamping and forming beer pits at the positions of the first type beer pits to be formed and the second type beer pits to be formed on the PCB respectively by utilizing a die.
According to the embodiment of the invention, the size and the position of the beer pit 10 to be molded on the PCB 1 are analyzed, and the beer pit 10 to be molded on the PCB 1 is divided into a first type beer pit 101 to be molded and a second type beer pit 103 to be molded by combining the position relation between the beer pit 10 to be molded and the adjacent reference on the PCB 1, so that the beer pit 101 to be molded is small in processing difficulty, the beer pit with high pit edge quality can be molded by directly adopting a traditional die stamping molding process, and the production efficiency is high; setting explosion protection holes 1030 for a second type of beer pit 103 to be molded, which is damaged on the surface of the PCB 1 by directly adopting a die stamping molding process, after parameters of the explosion protection holes 1030 are determined, firstly molding the explosion protection holes 1030 in the second type of beer pit 103 to be molded, effectively removing most of stress in the second type of beer pit 103 to be molded in the subsequent die stamping molding process, greatly reducing the impact force of die stamping molding on the surrounding area of the second type of beer pit 103, reducing the damage degree of die stamping on the pit mouth edge surface of the beer pit, and improving the yield of the PCB 1; not only the production efficiency is ensured, but also the high-quality PCB 1 can be obtained.
In a further alternative embodiment of the invention, the beer well 10 to be formed, which does not correspond to any of the following conditions, is divided into beer wells 101 to be formed of a first type, and the beer well 10 to be formed, which corresponds to one of the following conditions, is divided into beer wells 103 to be formed of a second type:
Condition 1: the beer well 10 to be formed can completely comprise square areas with a side length of more than 0.8mm and less than 2mm or round areas with a diameter of more than 0.8mm and less than 2.0 mm;
condition 2: the distance d1 between the edge of the beer well 10 to be formed and the nearest line 12 is less than or equal to 15mil;
Condition 3: the distance d1 between the edge of the beer pit 10 to be molded and the nearest line 12 is larger than 15mil and can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3 mm;
Condition 4: the distance d2 between the edge of the beer well 10 to be molded and the nearest boundary of the PCB 1 is less than or equal to 2mm;
Condition 5: the distance d2 between the edge of the beer pit 10 to be molded and the nearest boundary 1 of the PCB is more than 2mm, and the beer pit can completely contain a square area with the side length of 3mm or a round area with the diameter of 3 mm;
condition 6: the distance d3 between the edge of the beer well 10 to be formed and the nearest finished hole 14 is less than or equal to 1mm;
Condition 7: the distance d4 between the edge of the beer pit 10 to be formed and the closest other beer pits 10 to be formed is less than or equal to 2mm; or alternatively
Condition 8: the beer pit 10 to be molded is a long beer pit with the width D1 smaller than or equal to 2mm and the length-width ratio larger than 2.
In this embodiment, by setting reasonable screening conditions, the beer pit 10 to be formed is conveniently and rapidly classified into the first type beer pit 101 to be formed and the second type beer pit 103 to be formed, wherein the first type beer pit 101 to be formed can be directly formed by stamping with a die, which is beneficial to improving the efficiency of manufacturing beer pits by the PCB board 1.
In a further alternative embodiment of the invention, as shown in fig. 2, the second type of beer 103 pit to be formed, which meets condition 1, is treated as follows: a circular hole or a long groove hole is formed at the center of the second-type beer pit 103 to be formed as a explosion protection hole 1030, and the minimum distance s1 between the edge of the explosion protection hole 1030 and the edge of the second-type beer pit 103 to be formed is 2mil. In the embodiment, the explosion protection hole 1030 is formed at the center of the second type beer pit 103 to be formed, which can completely comprise a square area with a side length of more than 0.8mm and less than 2mm or a round area with a diameter of more than 0.8mm and less than 2.0mm, and the minimum distance s1 between the edge of the explosion protection hole 1030 and the edge of the second type beer pit 103 to be formed is 2mil, so that an error range of at least 2mil is reserved for forming the explosion protection hole 1030, and the forming difficulty of the explosion protection hole 1030 is reduced; the explosion-proof hole 1030 can effectively remove stress in the corresponding beer pit in the process of stamping and forming the beer pit by most of subsequent dies, and avoid the phenomena of white edges and the like caused by damage to the surface of the PCB 1 around the pit mouth of the corresponding beer pit due to overlarge stress.
In a further alternative embodiment of the invention, as shown in fig. 3, the second type of beer well 103 to be formed, which meets either condition 2 or condition 4, is treated as follows:
when the second type beer pit 103 to be formed can be completely contained in a square area with a side length of 3mm or a circular area with a diameter of 3mm, forming a circular hole at the center of the second type beer pit 103 to be formed as a explosion protection hole 1030, wherein the minimum distance s1 between the edge of the explosion protection hole 1030 and the edge of the second type beer pit 103 to be formed is 2mil;
When the second-class beer pit 103 can completely contain a square area with a side length of 3mm or a round area with a diameter of 3mm, forming a long slot hole with a width D2 of 1mm in the second-class beer pit 103 as the explosion-proof hole 1030, wherein the minimum distance s1 between one side edge of the long slot hole 1030, which is close to the border of the circuit 12 or the PCB 1 serving as a reference object, and two side edges adjacent to the side edges and pit edges on the corresponding side of the second-class beer pit 103 is 2mil.
The distance d1 between the edge of the second type beer well 103 to be formed and the nearest line 12 in this embodiment is less than or equal to 15mil or the distance d2 between the edge and the nearest boundary of the PCB board 1 is less than or equal to 2mm, and the explosion-proof hole 103 is set in two ways according to the size of the second type beer well 103 to be formed: when the second type of beer pit 103 to be molded can be completely contained in a square area with a side length of 3mm or a round area with a diameter of 3mm, the explosion protection hole 1030 is a round hole molded at the center of the beer pit 103 and with a minimum distance s1 from the edge of the beer pit 103 of 2mil; when the second-type beer pit 103 to be formed can completely comprise a square area with a side length of 3mm or a round area with a diameter of 3mm, the explosion-proof hole 1030 is a long slot hole with a width D2 of 1mm, and the minimum distance s1 between the long slot hole 1030 and the edge of the pit adjacent to one side edge of the circuit 12 or the boundary of the PCB 1 serving as a reference and two side edges adjacent to the side edge and the side corresponding to the second-type beer pit 103 to be formed is 2mil; by reasonably arranging the explosion-proof hole 1030, the stress in the beer pit 10 to be molded in the stamping process of most subsequent dies can be effectively removed, and the phenomenon that the surface of the PCB 1 around the pit mouth of the corresponding beer pit is damaged due to overlarge stress, so that white edges and the like are caused can be avoided.
In a further alternative embodiment of the invention, as shown in fig. 3, the second type of beer well 103 to be formed, which meets either condition 3 or condition 5, is treated as follows: a circular hole or a long groove hole is formed at the center of the second-class beer pit 103 to be formed as the explosion protection hole 1030, and the minimum distance s1 between the edge of the explosion protection hole 1030 and the edges of each side of the second-class beer pit 103 to be formed is 2mil. In this embodiment, by setting the circular hole or the long slot hole at the center of the second type beer pit 103, which can completely include a square area with a side length of 3mm or a circular area with a diameter of 3mm, so as to ensure that the minimum distance s1 between the hole edge and the pit edge is 2mil, the explosion-proof hole 1030 is arranged, and the stress applied in the beer pit 10 to be formed in most of the subsequent die stamping processes can be effectively removed, so that the surface of the PCB board 1 around the hole mouth of the corresponding beer pit is prevented from being damaged due to excessive stress, and the phenomenon such as white edge is avoided.
In a further alternative embodiment of the invention, as shown in fig. 4, the second type of beer well 103 to be formed, which meets condition 6, is treated as follows:
When the diameter D3 of the finished hole 14 is smaller than or equal to 2mm, forming a circular hole with the same diameter as the diameter D3 of the finished hole 14 in the second-type beer well 103 to be formed as the explosion-proof hole 1030, wherein the explosion-proof hole 1030 is tangent to one side edge of the second-type beer well 103 to be formed close to the finished hole 14, and a connecting line between the explosion-proof hole 1030 and the circle center of the finished hole 14 passes through a tangent point between the explosion-proof hole 1030 and one side edge of the second-type beer well 103 to be formed close to the finished hole 14;
When the diameter D3 of the finished hole 14 is greater than 2mm, forming a long slot hole in the second type beer pit 103 to be formed as the explosion-proof hole 1030, wherein the width of the long slot hole 1030 is the same as the diameter D3 of the finished hole 14, the length of the long slot hole 1030 is greater than the long slot hole with the diameter D3 1mm (2×s2) of the finished hole 14, and the connecting line between the center of the long slot hole 1030 and the center of the finished hole 14 is perpendicular to the side edge of the long slot hole 1030 adjacent to one side of the finished hole 14. In this embodiment, the explosion protection hole 1030 is formed by adopting two schemes for the second type of beer pit 103 to be formed, wherein the distance d3 between the edge and the nearest finished hole 14 is smaller than or equal to 1mm, so that the forming of the high-quality beer pit can be realized for the finished holes 14 with different sizes.
In a further alternative embodiment of the invention, as shown in fig. 5, the second type of beer 103 pit to be formed, which meets condition 7, is treated as follows: and forming a circular hole at one end of the second-type beer pit 103, which is close to the closest other beer pits 10 to be formed, as the explosion protection hole 1030, wherein the diameter of the explosion protection hole 1030 is the same as the width D4 of the second-type beer pit 103 and tangential to the corresponding end edge of the second-type beer pit 103. In this embodiment, a circular hole with a diameter equal to the width D4 of the second-class beer pit 103 is formed at one end of the second-class beer pit 103 close to the closest other beer pit 10 to be formed, where the distance D4 between the edge and the closest other beer pit 10 to be formed is smaller than or equal to 2mm, as the explosion-proof hole 1030, so that stress in the beer pit 10 to be formed in most of the subsequent die stamping processes can be effectively removed, and the phenomenon that the PCB board 1 around the mouth of the corresponding beer pit is damaged due to excessive stress, so that white edges and the like are generated can be avoided.
In a further alternative embodiment of the invention, as shown in fig. 5, the second type of beer well 103 to be formed, which meets condition 8, is treated as follows:
When the length of the long beer pit 103 is less than or equal to 25mm, forming a circular hole with the diameter equal to the width D1 of the long beer pit 103 at two ends of the long beer pit 103 as the explosion protection hole 1030, wherein the explosion protection hole 1030 is tangent to the corresponding end edge of the long beer pit 103;
When the length of the long beer pit 103 is greater than 25mm, forming a plurality of circular holes with the diameter equal to the width D1 of the long beer pit 103 at the two ends and the middle of the long beer pit 103 as the explosion-proof holes 1030, wherein the explosion-proof holes 1030 at the two ends of the long beer pit 103 are tangent to the corresponding end edges of the long beer pit 103, and the center distance s3 between the explosion-proof holes 1030 at the middle of the long beer pit 103 and at least one adjacent explosion-proof hole 1030 is 20mm. In this embodiment, the explosion protection hole 1030 is formed in the long beer pit 103 with the width D1 smaller than 2mm and the length-width ratio larger than 2 by adopting two schemes, and the forming of the high-quality beer pit can be realized for long beer pits 103 with different lengths: when the length of the long beer pit 103 is less than or equal to 25mm, the explosion protection holes 1030 are arranged at two ends of the long beer pit 103, have a diameter equal to the width D1 of the long beer pit 103 and are also tangential to the corresponding end edges; when the length of the long beer pit 103 is greater than 25mm, a plurality of explosion-proof holes 1030 with the diameter equal to D3 are additionally arranged in the middle of the long beer pit 103, and the center distance s3 between each explosion-proof hole 1030 and at least one adjacent explosion-proof hole 1030 is 20mm, so that the stress in most beer pits 10 can be relieved in the subsequent die stamping process, and the situation that the surface of the PCB 1 around the pit mouth of the corresponding beer pit is damaged due to overlarge stress is avoided, so that the phenomenon of white edges and the like occurs.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many changes may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are all within the scope of the present invention.
Claims (8)
1. A method for manufacturing beer pits by using a PCB, which is characterized by comprising the following steps:
Analyzing the size and the position of a beer pit to be molded on a PCB according to design data of the PCB, dividing the beer pit to be molded into a first type beer pit to be molded directly and a second type beer pit to be molded after a explosion-proof hole is formed in a region of the beer pit to be molded by combining the beer pit to be molded with a position relation of an adjacent reference object on the PCB, wherein the reference object comprises at least one of the following structures: lines, finished holes, other beer pits to be molded or PCB board boundaries;
determining forming parameters of forming the explosion-proof holes in each second-class beer pit to be formed, wherein the forming parameters comprise the positions of forming the explosion-proof holes in the area of the second-class beer pit to be formed and the sizes of the explosion-proof holes to be formed;
forming the explosion-proof holes in each second type of beer pit to be formed according to the forming parameters; and
And stamping and forming beer pits at the positions of the first type beer pits to be formed and the second type beer pits to be formed on the PCB respectively by utilizing a die.
2. The method for producing beer pits according to claim 1, wherein the beer pit to be formed which does not conform to the following conditions is divided into a first type of beer pit to be formed, and the beer pit to be formed which conforms to one of the following conditions is divided into a second type of beer pit to be formed:
condition 1: the beer pit to be formed can completely comprise a square area with the side length being more than 0.8mm and less than 2mm or a round area with the diameter being more than 0.8mm and less than 2.0 mm;
Condition 2: the distance between the edge of the beer pit to be molded and the nearest line is less than or equal to 15mil;
Condition 3: the distance between the edge of the beer pit to be molded and the nearest line is more than 15mil, and the beer pit to be molded can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3 mm;
condition 4: the distance between the edge of the beer pit to be molded and the nearest boundary of the PCB is more than 1mm and less than or equal to 2mm;
Condition 5: the distance between the edge of the beer pit to be formed and the nearest boundary of the PCB is more than 2mm, and the beer pit can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3 mm;
condition 6: the distance between the edge of the beer pit to be molded and the nearest finished hole is less than or equal to 1mm;
Condition 7: the distance between the edge of the beer pit to be formed and the closest other beer pits to be formed is less than or equal to 2mm; or alternatively
Condition 8: the beer pit to be formed is a long beer pit with the width smaller than or equal to 2mm and the length-width ratio larger than 2.
3. The method for manufacturing beer pits according to claim 2, wherein the beer pits to be molded of the second type meeting the condition 1 are processed as follows: and forming a circular hole or a long groove hole at the center of the second-class beer pit to be formed as a explosion-proof hole, wherein the minimum distance between the edge of the explosion-proof hole and the edge of the second-class beer pit to be formed is 2mil.
4. The method for manufacturing beer pits by using the PCB board according to claim 2, wherein the beer pits to be molded of the second type meeting the condition 2 or the condition 4 are processed as follows:
when the second-class beer pit to be formed can be completely contained in a square area with the side length of 3mm or a round area with the diameter of 3mm, forming a round hole at the center of the second-class beer pit to be formed as a explosion-proof hole, wherein the minimum distance between the edge of the explosion-proof hole and the edge of the second-class beer pit to be formed is 2mil;
When the second-class beer pit to be formed can completely comprise a square area with the side length of 3mm or a round area with the diameter of 3mm, forming a long slot hole with the width of 1mm in the second-class beer pit to be formed as the explosion-proof hole, wherein the minimum distance between one side edge of the long slot hole, which is close to the circuit or the boundary of the PCB serving as a reference, and two side edges adjacent to the side edges and pit edges at the corresponding side of the second-class beer pit to be formed is 2mil.
5. The method for manufacturing beer pits by using the PCB board according to claim 2, wherein the beer pits to be molded of the second type meeting the condition 3 or the condition 5 are processed as follows: and forming a circular hole or a long groove hole at the center of the second-class beer pit to be formed as the explosion-proof hole, wherein the minimum distance between the edge of the explosion-proof hole and the edges of each side of the second-class beer pit to be formed is 2mil.
6. The method for manufacturing beer pits according to claim 2, wherein the beer pits to be molded of the second type meeting the condition 6 are processed as follows:
When the diameter of the finished product hole is smaller than or equal to 2mm, forming a circular hole with the same diameter as the diameter of the finished product hole in the second type beer pit to be formed as the explosion-proof hole, wherein the explosion-proof hole is tangent to the edge of the second type beer pit to be formed, which is close to the finished product hole, and the connecting line of the explosion-proof hole and the circle center of the finished product hole passes through the tangent point of the explosion-proof hole and the edge of the second type beer pit to be formed, which is close to the finished product hole;
When the diameter of the finished hole is larger than 2mm, forming a long slot hole in the second class of beer pit to be formed as the explosion-proof hole, wherein the width of the long slot hole is the same as the diameter of the finished hole, the length of the long slot hole is larger than that of the long slot hole with the diameter of more than 1mm, and the connecting line between the center of the long slot hole and the center of the finished hole is perpendicular to the side edge of the long slot hole adjacent to one side of the finished hole.
7. The method for manufacturing beer pits according to claim 2, wherein the beer pits to be molded of the second type meeting the condition 7 are processed as follows: and forming a round hole at one end of the second-class beer pit close to the closest other beer pits to be formed as the explosion-proof hole, wherein the diameter of the explosion-proof hole is the same as the width of the second-class beer pit and tangent to the corresponding end edge of the second-class beer pit.
8. The method for manufacturing beer pits according to claim 2, wherein the beer pits to be molded of the second type meeting the condition 8 are processed as follows:
When the length of the long beer pit is smaller than or equal to 25mm, forming a circular hole with the diameter equal to the width of the long beer pit at two ends of the long beer pit as the explosion-proof hole, wherein the explosion-proof hole is tangent to the corresponding end edge of the long beer pit;
When the length of the long beer pit is larger than 25mm, forming a plurality of circular holes with the diameter equal to the width of the long beer pit at the two ends and the middle of the long beer pit respectively to serve as explosion-proof holes, wherein the explosion-proof holes at the two ends of the long beer pit are tangent to the corresponding end edges of the long beer pit, and the distance between the explosion-proof holes at the middle of the long beer pit and the circle center of one adjacent explosion-proof hole is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210914838.6A CN115279033B (en) | 2022-08-01 | 2022-08-01 | Method for manufacturing beer pit by PCB |
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| CN202210914838.6A CN115279033B (en) | 2022-08-01 | 2022-08-01 | Method for manufacturing beer pit by PCB |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006228845A (en) * | 2005-02-16 | 2006-08-31 | Auto Network Gijutsu Kenkyusho:Kk | Method of forming metal foil circuit pattern to resin member, and its formed body |
| CN202143293U (en) * | 2011-06-30 | 2012-02-08 | 惠州市星之光科技有限公司 | Print circuit board convenient for die punching |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006228845A (en) * | 2005-02-16 | 2006-08-31 | Auto Network Gijutsu Kenkyusho:Kk | Method of forming metal foil circuit pattern to resin member, and its formed body |
| CN202143293U (en) * | 2011-06-30 | 2012-02-08 | 惠州市星之光科技有限公司 | Print circuit board convenient for die punching |
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| CN115279033A (en) | 2022-11-01 |
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