PCB drilling detection method and device

Abstract

The invention relates to a PCB drill hole detection method and device, and the method comprises the steps: obtaining a first hole dividing graph and a drill hole graph of a PCB drill hole, the first hole dividing graph is provided with at least one first hole symbol, and the drill hole graph is provided with at least one first drill hole; performing surface treatment on the first sub-hole graph, converting a first hole symbol into a second hole symbol, and generating a second sub-hole graph; and performing contact processing on the second hole dividing graph and the drilling graph, and judging whether the second hole symbol has a corresponding first drilling hole, if so, passing the detection of the drilling graph, and otherwise, performing re-checking processing on the drilling graph. Through the scheme of the invention, the constituent part of the first hole symbol can be converted into the second hole symbol through the surface conversion treatment, and the second hole symbol is in contact with the first drill hole, so that whether the drill hole is missed in the drill hole diagram or not is judged. According to the scheme, the risk of missing drilling is effectively avoided, and the drilling detection efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of PCB manufacturing, and in particular to a PCB drilling detection method and device. Background Art

[0002] PCB (Printed Circuit Board), whose Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connections between electronic components.

[0003] In the prior art, due to different PCB wiring design standards, the design files are also different, especially in the hole diagram, where each hole symbol corresponds to a type of drilling hole. However, there are some drilling programs that do not have a drill bit, while a mechanical circle is designed in the hole diagram, which easily leads to missed drilling holes. Summary of the invention

[0004] In view of the above problems, an embodiment of the present invention provides a PCB drilling detection method and device, which is used to solve the problem that in the prior art, due to different PCB wiring design standards, the design files are also different, especially in the hole division diagram, each hole symbol corresponds to a type of drilling, but there are some drilling programs without drill bits, and mechanical circles are designed in the hole division diagram, which easily leads to the problem of missed drilling.

[0005] According to one aspect of an embodiment of the present invention, a PCB drilling detection method is provided, the method comprising: Acquire a first hole division map and a drilling map for PCB drilling, wherein the first hole division map has at least one first hole symbol, and the drilling map has at least one first drilled hole; Performing surface processing on the first hole pattern, converting the first hole symbol into a second hole symbol, and generating a second hole pattern; The second hole pattern and the drilling pattern are contacted and it is determined whether the second hole pattern has a corresponding first drilling hole. If so, the drilling pattern is detected to be passed, otherwise, the drilling pattern is reviewed.

[0006] In some optional embodiments, performing surface processing on the first hole pattern to convert the first hole symbol into a second hole symbol specifically includes: Shrinking the first hole symbol along the center of the first hole symbol; At least one component of the reduced first hole symbol is converted into a complete hole symbol as a whole, the hole symbol as a whole is the second hole symbol, and a second hole diagram is generated.

[0007] In some optional embodiments, the first hole symbol is reduced by 3 mil along the center of the first hole symbol.

[0008] In some optional embodiments, the first hole symbol includes any one or both of symbols and letters; when components of the first hole symbol include symbols and letters, the symbols and letters of the first hole symbol are converted into the entire hole symbol.

[0009] In some optional embodiments, the first hole symbol of the first hole pattern or the second hole symbol of the second hole pattern is identified and screened by Genesis software or incam software.

[0010] In some optional embodiments, contacting the second hole pattern with the drilling pattern specifically includes: The second hole division diagram and the drilling diagram are placed on the first level and the second level respectively, and the first level and the second level are aligned; At the same time, the second hole pattern and drilling pattern are opened, and it is determined through image acquisition whether the second hole symbol contacts the first drilling hole. If so, PCB drilling is performed according to the drilling pattern, otherwise the drilling pattern is detected and processed.

[0011] In some optional embodiments, when the offset between the second hole symbol and the first bore hole is within a preset offset range, it is determined that the second hole symbol has the corresponding first bore hole.

[0012] In some optional embodiments, the preset range of the displacement is 0-4 mil.

[0013] In some optional embodiments, the reviewing of the drilling map specifically includes: By contacting the second hole diagram with the drilling diagram, a second hole symbol and / or a first drilling hole without a corresponding relationship is obtained, and the second hole symbol and / or the first drilling hole are defined as the hole to be reviewed; The first hole division diagram and the drilling diagram are placed on the first level and the second level respectively, and the first level and the second level are aligned; At the same time, the first hole division map and the drilling map are opened to determine whether the first hole symbol of the first hole division map contacts the first drill hole at the position of the hole to be checked. If so, the drilling map detection passes, otherwise, the drilling map detection fails.

[0014] According to another aspect of an embodiment of the present invention, a PCB drilling detection device is provided, the device comprising: A data acquisition module, used to acquire a first hole division map and a drilling map for PCB drilling, wherein the first hole division map has at least one first hole symbol, and the drilling map has at least one first drilled hole; A hole pattern processing module, used for performing surface processing on the first hole pattern, converting the first hole symbol into a second hole symbol, and generating a second hole pattern; and a detection module, for contacting the second hole pattern with the drilling pattern, and determining whether the second hole pattern has a corresponding first drilling hole, if so, the drilling pattern detection passes, otherwise the drilling pattern is reviewed.

[0015] The PCB drilling detection method and device of the present invention have the following beneficial effects: the present invention obtains a first hole division diagram and a drilling diagram of PCB drilling, wherein the first hole division diagram has at least one first hole symbol, and the drilling diagram has at least one first drilled hole; performs surface treatment on the first hole division diagram, converts the first hole symbol into a second hole symbol, and generates a second hole division diagram; performs contact treatment on the second hole division diagram and the drilling diagram, and determines whether the second hole symbol has a corresponding first drilled hole, if so, the drilling diagram detection passes, otherwise the drilling diagram is reviewed. Through the scheme of the present invention, it is possible to convert the components of the first hole symbol into the second hole symbol through surface treatment, and contact the second hole symbol with the first drilled hole, thereby determining whether the drilling diagram misses a drilled hole. The scheme of the present invention effectively avoids the risk of missing a drilled hole and improves the efficiency of drilling detection.

[0016] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings: Figure 1 A schematic flow chart of a PCB drilling detection method according to Embodiment 1 of the present invention is shown; Figure 2 A schematic diagram of the process of performing surface treatment on the first pore pattern according to Embodiment 2 provided by the present invention is shown; Figure 3 A schematic diagram of the process of contacting the second hole division map and the drilling map in Embodiment 2 provided by the present invention is shown; Figure 4 A schematic diagram of the process of performing a review process and a contact process on a drilling diagram according to Embodiment 2 provided by the present invention is shown; Figure 5 A schematic structural diagram of a PCB drilling detection device according to Embodiment 3 provided by the present invention is shown; Figure 6 A schematic diagram showing contact between the second hole pattern and the first drill hole of Example 2 provided by the present invention is shown. DETAILED DESCRIPTION

[0018] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0019] Embodiment 1, See also Figure 1 According to one aspect of the embodiments of the present invention, a first embodiment of a PCB drilling detection method is provided. The method is applied to the inner layer drilling or outer layer process in the PCB manufacturing process. The drilling process can be mechanical drilling or laser drilling. Various blind holes, channels, connection grooves, etc. of the PCB board are manufactured by drilling. The method is used to detect the drilling pattern to avoid missing holes in the PCB board. The method specifically includes: 110, obtaining a first hole-dividing diagram and a drilling diagram for PCB drilling, wherein the first hole-dividing diagram has at least one first hole symbol, and the drilling diagram has at least one first drilled hole; in step 110, the first hole-dividing diagram may be composed of various symbols, and one drilled hole corresponds to one hole symbol. The first hole-dividing diagram may be provided by a customer. The drilling diagram may be a hole position diagram of a PCB board made by the first hole-dividing diagram, and the drilling diagram is also a drill nozzle arrangement diagram. The drilling diagram may be obtained according to the first hole-dividing diagram. The first hole-dividing diagram may have one or more first hole symbols, and the drilling diagram may have one or more first drilled holes. The following takes the first hole-dividing diagram having one first hole symbol as an example, and having multiple first hole symbols may be implemented with reference to having one first hole symbol.

[0020] 120, performing surface processing on the first hole pattern, converting the first hole symbol into a second hole symbol, and generating a second hole pattern; in step 120, performing surface processing on the first hole pattern, converting the first hole symbol into the second hole symbol, specifically comprising: shrinking the first hole symbol along the center of the first hole symbol; converting at least one component of the shrunken first hole symbol into a complete hole symbol as a whole, the hole symbol as a whole being the second hole symbol, and generating a second hole pattern.

[0021] 130, the second hole pattern and the drilling pattern are contacted, and it is determined whether the second hole symbol has a corresponding first drill hole. If so, the drilling pattern detection is passed, otherwise the drilling pattern is reviewed. In step 130, the second hole pattern and the drilling pattern are contacted, specifically including: placing the second hole pattern and the drilling pattern on the first level and the second level respectively, and the first level and the second level are aligned; opening the second hole pattern and the drilling pattern at the same time, and determining whether the second hole symbol is in contact with the first drill hole through image acquisition, if so, PCB drilling is performed according to the drilling pattern, otherwise the drilling pattern is detected. The drilling diagram is reviewed, specifically including: obtaining a second hole symbol and / or a first drill hole that has no corresponding relationship by contacting the second hole division diagram and the drill hole diagram, and defining them as holes to be reviewed; placing the first hole division diagram and the drill hole diagram on the first level and the second level respectively, and aligning the first level and the second level; opening the first hole division diagram and the drill hole diagram at the same time, and determining whether the first hole symbol of the first hole division diagram is in contact with the first drill hole at the position of the hole to be reviewed, if so, the drilling diagram detection passes, and if not, the drilling diagram detection fails.

[0022] The present invention obtains a first hole division diagram and a drilling diagram for PCB drilling, wherein the first hole division diagram has at least one first hole symbol and the drilling diagram has at least one first drilled hole; performs surface treatment on the first hole division diagram, converts the first hole symbol into a second hole symbol, and generates a second hole division diagram; performs contact treatment on the second hole division diagram and the drilling diagram, and determines whether the second hole symbol has a corresponding first drilled hole, if so, the drilling diagram detection passes, otherwise the drilling diagram is reviewed. Through the scheme of the present invention, it is possible to convert the components of the first hole symbol into the second hole symbol through surface treatment, and contact the second hole symbol with the first drilled hole, thereby determining whether the drilling diagram misses a drilled hole. The scheme of the present invention effectively avoids the risk of missing a drilled hole and improves the efficiency of drilling detection.

[0023] Embodiment 2: This embodiment is based on Embodiment 1, and provides a second embodiment of a PCB drilling detection method, the method comprising: obtaining a first hole division map and a drilling map for PCB drilling, wherein the first hole division map has at least one first hole symbol, and the drilling map has at least one first drilled hole; performing surface treatment on the first hole division map, converting the first hole symbol into a second hole symbol, and generating a second hole division map; performing contact treatment on the second hole division map and the drill map, and judging whether the second hole symbol has a corresponding first drilled hole, if so, the drill map detection passes, otherwise, the drill map is reviewed.

[0024] In some optional embodiments, see Figure 2 , performing surface processing on the first hole pattern to convert the first hole symbol into a second hole symbol, specifically comprising: 210, shrink the first hole symbol along the center of the first hole symbol; in step 210, the first hole symbol is located in the first hole diagram position is the drilling position, and the center of the first hole symbol is the center of the drilling circle. The first hole symbol is shrunk along the center of the first hole symbol, that is, along the center of the drilling circle, and the first hole symbol is shrunk by 3mil along the center of the first hole symbol. Due to the limitation of industry process capabilities, the spacing between holes in the PCB board is generally 4mil at least in the same network. Reducing it by 3mil can not only meet the spacing between holes in the same network, but also avoid the contact of adjacent hole symbols when converting them into a whole hole symbol in the next step to affect the judgment.

[0025] 220, convert at least one component of the reduced first hole symbol into a complete hole symbol as a whole, the hole symbol as a whole is the second hole symbol, and generate a second hole division diagram. In step 220, the first hole symbol includes any one or both of symbols and letters; when the components of the first hole symbol include symbols and letters, the symbols and letters of the first hole symbol are converted into the hole symbol as a whole. In order to ensure the integrity of the hole symbol in this step, some hole symbols are combinations of + letters, which are converted together so that one hole corresponds to one hole symbol, avoiding interference of other components of the hole symbol on the result.

[0026] In some optional embodiments, the first hole symbol of the first hole pattern or the second hole symbol of the second hole pattern is identified and screened by Genesis software or incam software, so that the drilling pattern is formed by Genesis software or incam software.

[0027] In some optional embodiments, see Figure 3 , contacting the second hole division diagram with the drilling diagram, specifically comprising: 310, placing the second hole division diagram and the drilling diagram on the first level and the second level respectively, and aligning the first level with the second level; 320, simultaneously opening the second hole pattern and the drilling pattern, and determining whether the second hole pattern contacts the first drilling hole through image acquisition, if so, drilling the PCB according to the drilling pattern, otherwise, detecting and processing the drilling pattern.

[0028] like Figure 6 As shown, 61 is in contact with the second hole symbol, 62 is in contact with the first drill hole, 63 is not in contact with the second hole symbol, and 64 is not in contact with the first drill hole. After the second hole division map and the drill hole map are opened at the same time, the second hole symbol is in contact with the first drill hole under normal circumstances, as shown in the reference numerals 61 and 62. However, when a drill hole is missed or there is a problem with image matching, the second hole symbol and the first drill hole may be separated, as shown in the reference numerals 63 and 64. At this time, the drill hole map needs to be detected and processed.

[0029] In the present invention, the operation of steps 310-320 can be performed in Genesis software or incam software, that is, the second character of the second hole diagram and the first character of the drilling diagram are 1:1, the second hole symbol is on one layer, the first drilling hole is on another layer, and two layers are opened at the same time, and there is a one-to-one correspondence between the upper and lower layers of data. It can be recognized by image whether the second hole symbol is in contact with the first drilling hole. The hole offset position cannot be judged. When the offset range is large and cannot be touched, it means that the data does not correspond, and a prompt message can be displayed. When the offset between the second hole symbol and the first drilling hole is within the preset offset range, it is determined that the second hole symbol has the corresponding first drilling hole. The preset range of the shift is 0-4mil; by setting the offset position, a certain production error is allowed and the impact of the reduction of the first hole symbol in step 210 is avoided.

[0030] In some optional embodiments, see Figure 4 , review the drilling diagram, including: 410, obtaining a second hole symbol and / or a first drill hole that have no corresponding relationship by contacting the second hole division map with the drill hole map, and defining them as holes to be reviewed; 420, placing the first hole division diagram and the drilling diagram on the first level and the second level respectively, and aligning the first level with the second level; 430, simultaneously opening the first hole division map and the drilling map, and determining whether the first hole symbol of the first hole division map contacts the first drill hole at the position of the hole to be verified. If so, the drilling map detection passes, and if not, the drilling map detection fails.

[0031] In the present invention, whether the second hole symbol is in contact with the first drill hole and whether it is a missed drill hole is shown as follows. Because the hole symbols are various and composed of multiple objects, it is necessary to ensure that each is independent and single, and to ensure that the standard layer of the hole symbol is OK. If some hole symbols cannot guarantee the transfer surface, the two hole symbols are connected together, resulting in the judgment of no touch. This requires a review of the original hole diagram and the drilling program. The review action is to use the first hole diagram without change. In the process of reducing the first hole symbol, there is a change in the process of realizing the one-to-one corresponding judgment, but this change is limited to changing the size, and the position has not changed. The inclusion function of the software can be used to check whether there is a deviation in the data and eliminate interference in recognition. In the present invention, the first hole symbol of the first hole diagram is brought into contact with the first drill hole of the drilling diagram for review.

[0032] Embodiment 3: See also Figure 5According to another aspect of an embodiment of the present invention, a PCB drilling detection device 500 is provided, the device comprising a data acquisition module 510, a hole pattern processing module 520 and a detection module 530, wherein: The data acquisition module 510 is used to execute step 110 in Example 1. The data acquisition module 510 specifically includes: the first hole division diagram can be composed of various symbols, and one drill hole corresponds to one hole symbol. The first hole division diagram can be provided by the customer. The drilling diagram can be a PCB board hole position diagram made by the first hole division diagram, and the drilling diagram is also a drill nozzle arrangement diagram. The drilling diagram can be made according to the first hole division diagram. The first hole division diagram can have one or more first hole symbols, and the drilling diagram can have one or more first drill holes. The following takes the first hole division diagram having one first hole symbol as an example, and having multiple first hole symbols can refer to having one first hole symbol for implementation.

[0033] The hole pattern processing module 520 is used to execute step 120 in Example 1. The hole pattern processing module 520 specifically includes: performing surface processing on the first hole pattern, converting the first hole symbol into a second hole symbol, specifically including: shrinking the first hole symbol along the center of the first hole symbol; converting at least one component of the shrunken first hole symbol into a complete hole symbol as a whole, the hole symbol as a whole is the second hole symbol, and generating a second hole pattern.

[0034] The detection module 530 is used to execute step 130 in Example 1. The detection module 530 specifically includes: placing the second hole division map and the drilling map on the first level and the second level respectively, and the first level and the second level are aligned; opening the second hole division map and the drilling map at the same time, judging whether the second hole symbol is in contact with the first drilling hole through image acquisition, and if so, drilling the PCB according to the drilling map, otherwise the drilling map is detected and processed. The drilling map is reviewed, specifically including: obtaining the second hole symbol and / or the first drilling hole without a corresponding relationship by contacting the second hole division map and the drilling map, and defining it as a hole to be reviewed; placing the first hole division map and the drilling map on the first level and the second level respectively, and the first level and the second level are aligned; opening the first hole division map and the drilling map at the same time, judging whether the first hole symbol of the first hole division map is in contact with the first drilling hole at the position of the hole to be reviewed, and if so, the drilling map detection passes, and if not, the drilling map detection fails.

[0035] The present invention obtains a first hole division diagram and a drilling diagram for PCB drilling, wherein the first hole division diagram has at least one first hole symbol and the drilling diagram has at least one first drilled hole; performs surface treatment on the first hole division diagram, converts the first hole symbol into a second hole symbol, and generates a second hole division diagram; performs contact treatment on the second hole division diagram and the drilling diagram, and determines whether the second hole symbol has a corresponding first drilled hole, if so, the drilling diagram detection passes, otherwise the drilling diagram is reviewed. Through the scheme of the present invention, it is possible to convert the components of the first hole symbol into the second hole symbol through surface treatment, and contact the second hole symbol with the first drilled hole, thereby determining whether the drilling diagram misses a drilled hole. The scheme of the present invention effectively avoids the risk of missing a drilled hole and improves the efficiency of drilling detection.

[0036] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0037] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and further may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.

[0038] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present invention may be implemented with the aid of hardware comprising several different elements and with the aid of appropriately programmed computers. In a unit claim that lists several systems, several of these systems may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A PCB drilling detection method, characterized in that: The method comprises: Acquire a first hole division map and a drilling map for PCB drilling, wherein the first hole division map has at least one first hole symbol, and the drilling map has at least one first drilled hole; Performing surface processing on the first hole pattern, converting the first hole symbol into a second hole symbol, and generating a second hole pattern; The second hole pattern and the drilling pattern are contacted and it is determined whether the second hole pattern has a corresponding first drilling hole. If so, the drilling pattern is detected to be passed, otherwise, the drilling pattern is reviewed.

2. The PCB drilling detection method according to claim 1, characterized in that: Performing surface processing on the first hole pattern to convert the first hole symbol into a second hole symbol specifically includes: Shrinking the first hole symbol along the center of the first hole symbol; At least one component of the reduced first hole symbol is converted into a complete hole symbol as a whole, the hole symbol as a whole is the second hole symbol, and a second hole diagram is generated.

3. The PCB drilling detection method according to claim 2, characterized in that: The first hole symbol is reduced by 3 mil along the center of the first hole symbol.

4. The PCB drilling detection method according to claim 2, characterized in that: The first hole symbol includes any one or both of symbols and letters; when the components of the first hole symbol include symbols and letters, the symbols and letters of the first hole symbol are converted into the whole hole symbol.

5. The PCB drilling detection method according to claims 2-4, characterized in that: The first hole symbol of the first hole pattern or the second hole symbol of the second hole pattern is identified and screened by Genesis software or incam software.

6. The PCB drilling detection method according to claim 1, characterized in that: The second hole division diagram and the drilling diagram are contacted, specifically comprising: The second hole division diagram and the drilling diagram are placed on the first level and the second level respectively, and the first level and the second level are aligned; At the same time, the second hole pattern and drilling pattern are opened, and it is determined through image acquisition whether the second hole symbol contacts the first drilling hole. If so, PCB drilling is performed according to the drilling pattern, otherwise the drilling pattern is detected and processed.

7. The PCB drilling detection method according to claim 4, characterized in that: When the offset between the second hole symbol and the first bore hole is within a preset offset range, it is determined that the second hole symbol has the corresponding first bore hole.

8. The PCB drilling detection method according to claim 4, characterized in that: The preset range of the displacement is 0-4mil.

9. The PCB drilling detection method according to claim 1, characterized in that: The review process of the drilling map specifically includes: By contacting the second hole diagram with the drilling diagram, a second hole symbol and / or a first drilling hole without a corresponding relationship is obtained, and the second hole symbol and / or the first drilling hole are defined as the hole to be reviewed; The first hole division diagram and the drilling diagram are placed on the first level and the second level respectively, and the first level and the second level are aligned; At the same time, the first hole division map and the drilling map are opened to determine whether the first hole symbol of the first hole division map contacts the first drill hole at the position of the hole to be checked. If so, the drilling map detection passes, otherwise, the drilling map detection fails.

10. A PCB drilling detection device, characterized in that: The device comprises: A data acquisition module, used to acquire a first hole division map and a drilling map for PCB drilling, wherein the first hole division map has at least one first hole symbol, and the drilling map has at least one first drilled hole; A hole pattern processing module, used for performing surface processing on the first hole pattern, converting the first hole symbol into a second hole symbol, and generating a second hole pattern; and a detection module, for contacting the second hole pattern with the drilling pattern, and determining whether the second hole pattern has a corresponding first drilling hole, if so, the drilling pattern detection passes, otherwise the drilling pattern is reviewed.

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