CN114265024B - Method for debugging radar printed board assembly and protecting coating process - Google Patents
Method for debugging radar printed board assembly and protecting coating process Download PDFInfo
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- CN114265024B CN114265024B CN202111428293.XA CN202111428293A CN114265024B CN 114265024 B CN114265024 B CN 114265024B CN 202111428293 A CN202111428293 A CN 202111428293A CN 114265024 B CN114265024 B CN 114265024B
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- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 claims abstract description 43
- 239000010949 copper Substances 0.000 claims abstract description 43
- 238000012546 transfer Methods 0.000 claims abstract description 26
- 238000012216 screening Methods 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002356 single layer Substances 0.000 claims abstract description 7
- 239000006260 foam Substances 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims description 29
- 238000000429 assembly Methods 0.000 claims description 29
- 238000012360 testing method Methods 0.000 claims description 6
- 230000000670 limiting effect Effects 0.000 abstract description 3
- 239000000306 component Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Details Of Rigid Or Semi-Rigid Containers (AREA)
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Abstract
The invention relates to a protection method for debugging and coating a radar printed board assembly, which is realized by means of a hexagonal copper stud, a protection tool before coating, a coating tool, a stress screening tool and a transfer lining. The hexagonal copper studs are connected end to end through the printed board through holes, so that the printed board assembly can be suspended and clamped; the protection tool and the coating tool before coating are respectively a metal base and a wooden base, the surfaces of the protection tool and the coating tool are provided with a plurality of hole grooves, hexagonal copper studs can be inserted into the holes, limiting placement of printed board components is realized, and the buckling grooves on two sides can be convenient to grasp; the stress screening tool is a multi-layer metal frame, the single-layer frame consists of a plurality of transverse beams and longitudinal beams, the grooves with holes in the middle bottom can be used for placing and fastening printed board components, the frames can be piled up and fastened through rings Zhou Tongkong, and the metal blocks around the bottom layer frame can increase the structural stability; the transfer lining is blocky antistatic foam, the middle area is hollowed out and grooved, the limit placement of the printed board assembly and the stacking of the multilayer lining can be realized, and the buckling grooves on two sides can be conveniently grabbed.
Description
Technical Field
The invention belongs to the field of printed board assembly protection, and particularly relates to a protection method for debugging and coating processes of printed board assemblies used for radar products.
Background
The printed board assembly is an electronic assembly which takes a printed circuit board as a base plate and realizes electric interconnection by means of a printed circuit after components are installed. With the rapid development of integrated circuits and electronic technologies, the advantages of small size, light weight, high integration level and independent functions of the printed board assembly are more obvious, and the printed board assembly is widely applied to the radar industry. After components and parts are installed, the printed board assembly used for the radar product is usually subjected to debugging and coating processes such as electrical performance test, stress screening, three-proofing paint spraying and the like, and has the advantages of multiple production links, long processing period and certain quality risk hidden danger. Meanwhile, as a core component of a radar product, the manufacturing cost of the printed board assembly is high, and once quality problems occur, large economic losses can be caused. Therefore, protection in the production process of the radar printed board assembly is very important.
At present, most enterprises can protect against the transfer link of the printed board assembly, and the main means is to put the printed board assembly into an anti-static shielding bubble bag or insert an anti-static transfer vehicle, so that the printed board assembly has a certain protection effect, but has some defects: (1) The process of loading or taking out the printed board assembly into or from the anti-static shielding bubble bag is complicated, and the risk of scraping and rubbing the device exists; (2) The reserved insertion gap of the anti-static transfer vehicle is not easy to control, the too large insertion gap can cause shaking of the printed board assembly, and the too small insertion gap can cause damage of the board in the inserting and pulling processes; (3) When the device is transported for a long distance, the device can fall off due to overlarge vibration in both modes. At the same time, most businesses lack protection from the printed board assembly during operation. When debugging or coating work is carried out, the printed board assembly is often in direct contact with a tabletop or a human hand, so that the risk of collision, falling or electrostatic breakdown of the device is increased. Therefore, there is a need to form a method for protecting the debugging and coating processes of the radar printed board assembly, which ensures that the printed board assembly is in a protecting state in various links such as debugging, coating operation and midway transportation under the condition that the working efficiency is not affected.
Disclosure of Invention
Technical problem to be solved
In order to avoid the defects of the prior art, the invention provides a convenient and effective protection method to solve the problem that a radar printed board assembly lacks protection in the debugging and coating processes.
Technical proposal
A radar printed board assembly debugging and coating process protection method is characterized in that: the protection of the radar printed board assembly in the debugging and coating process is realized by using the hexagonal copper stud, the protection tool before coating, the coating tool, the stress screening tool and the transfer lining;
the hexagonal copper studs are standard components, one end of each hexagonal copper stud is provided with external threads, the other end of each hexagonal copper stud is provided with internal threads, and a plurality of pairs of hexagonal copper studs are connected end to end through printed board through holes, so that a printed board assembly can be clamped in the middle;
The pre-coating protection tool is a metal base and is applied to a device protection link before coating of the printed board assembly; the surface of the protection tool is dug with a plurality of holes, the positions and the sizes of the holes are related to the corresponding printed board assemblies, and the hexagonal copper studs are inserted into the holes, so that the limit placement of the printed board assemblies can be realized, and the printed board assemblies can not move at will when an operator performs operation;
The coating tool is a wooden base and is applied to a surface coating link of the printed board assembly; the surface of the coating tool is provided with a plurality of holes, the positions and the sizes of the holes are related to those of the corresponding printed board assemblies, and the hexagonal copper studs are inserted into the holes, so that the limit placement of the printed board assemblies can be realized, and the printed board assemblies can not move at will when an operator performs operation;
the stress screening tool is of a multi-layer metal frame structure and is applied to a debugging link of a printed board assembly; the single-layer frame is formed by combining a plurality of cross beams and longitudinal beams, a groove with a hole at the bottom is arranged in the middle of the frame, hexagonal copper studs can be inserted into the groove, the printed board assembly and the frame can be combined together through fastening screws on the back, and a plurality of printed board assemblies can be placed on the single-layer frame; through holes are formed in the periphery of the frames, when the multi-layer frames are piled up, long studs can penetrate through the through holes and are fastened by nuts, so that the multi-layer frames are combined together and enter test equipment once; compared with other layers, the bottom layer frame is provided with a plurality of metal blocks at the periphery, and can be contacted with the working table surface;
The transfer lining is block foam subjected to antistatic treatment and is applied to a transfer link of the printed board assembly; the lining partial area is hollowed out and is dug with a plurality of hole slots, the hexagonal copper studs are inserted into the hole slots to realize the limit placement of the printed board assembly, excessive vibration and contact damage are avoided during transportation, the hollowed out area can ensure that the printed board assembly is not integrally protruded out of the tool, and the multilayer lining can be piled up during transportation, so that the transportation efficiency is improved.
The invention further adopts the technical scheme that: the long side both sides of protection frock before the coating unsettled, the operating personnel of being convenient for take.
The invention further adopts the technical scheme that: the middle of the two sides of the long side of the coating tool is provided with a buckling groove, so that an operator can take the coating tool conveniently.
The invention further adopts the technical scheme that: and a plurality of radar printed board assemblies are arranged on the coating fixture side by side.
The invention further adopts the technical scheme that: the middle of the two sides of the long side of the transfer lining is provided with a buckling groove, so that an operator can take the transfer lining conveniently.
Advantageous effects
Compared with the existing printed board assembly protection method, the radar printed board assembly debugging and coating process protection method provided by the invention has the beneficial effects that:
(1) The whole-course protection of the debugging and coating process of the printed board assembly can be realized. Through protection frock, coating frock, stress screening frock, transportation inside lining before the design coating, make hexagonal copper double-screw bolt can be whole be connected with the printing board subassembly to avoid the contact damage, the operation demand of each link also can all be satisfied simultaneously.
(2) The design is humanized and the use is convenient. The weight of the tool is greatly reduced by selecting light materials as much as possible, arranging weight-reducing grooves, side buckling grooves and the like, and the tool is convenient for operators to carry; the printed board assembly is taken and placed in a manner of grabbing the hexagonal copper studs, the operation is simple and convenient, and the operation of opening and closing the anti-static shielding bubble bag is omitted, so that the working efficiency is improved.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, like reference numerals being used to refer to like parts throughout the several views.
FIG. 1 is a schematic diagram of the operation of a printed board assembly after mating with a hexagonal copper stud;
FIG. 2 is a schematic diagram of the operation of the printed board assembly when protected prior to coating;
FIG. 3 is a schematic diagram of the operation of the printed board assembly when it is coated;
FIG. 4 is a schematic diagram illustrating the operation of the printed board assembly in stress screening;
FIG. 5 is a schematic diagram of the operation of the printed board assembly during transportation;
FIG. 6 is a schematic view of a hexagonal copper stud;
FIG. 7 is a schematic diagram of a pre-coating protection tool;
FIG. 8 is a schematic view of a coating tool;
FIG. 9 is a schematic diagram of the front of the bottom frame of the stress screening tool;
FIG. 10 is a schematic view of the back of the bottom frame of the stress screening tool;
FIG. 11 is a schematic view of the front of a non-bottom frame of the stress screening tool;
FIG. 12 is a schematic view of the backside of a non-bottom frame of a stress screening tool;
FIG. 13 is a schematic view of a transfer liner;
In the figure: 1-hexagonal copper stud, 2-protection frock before coating, 3-coating frock, 4-stress screening frock, 5-transportation inside lining.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention uses the hexagonal copper stud, the protection tool before coating, the coating tool, the stress screening tool and the transfer lining to realize the protection of the radar printed board assembly in the debugging and coating process.
The hexagonal copper stud is used as a standard component, one end is provided with external threads, the other end is provided with internal threads, the specific specification of the hexagonal copper stud is determined according to the diameter of the through hole on the printed board and the height of the component, and the hexagonal copper stud is applied to various links such as debugging, coating operation, midway transferring and the like of the printed board assembly. The printed board assembly can be clamped in the middle through the end-to-end connection of the through holes of the printed board, the printed board assembly is not dismounted no matter in the process of transferring, taking and placing, and the printed board assembly is always ensured to be in a suspended state and not to be in direct contact with hands or a table top, so that the damage to devices is avoided.
The protection tool before coating is a metal base and is applied to a device protection link before coating of the printed board assembly. The fixture is characterized in that the surface of the fixture is provided with a plurality of holes, the positions and the sizes of the holes are related to those of the corresponding printed board assemblies, and the hexagonal copper studs are inserted into the holes, so that the printed board assemblies can be placed in a limited manner, and the printed board assemblies can not move at will when an operator works; the two sides of the long side of the tool are suspended, so that an operator can take the tool conveniently.
The coating tool is a wooden base and is applied to surface coating links such as spraying three-proofing paint on a printed board assembly.
The surface of the tool is provided with a plurality of holes and grooves, the use principle is similar to that of the protection tool before coating, and the main difference is that the coating tool can be used for placing a plurality of printed board assemblies at one time, so that the spraying efficiency is improved, and the specific placement quantity is determined according to the size of a workbench surface; the wood manufacturing tool is selected, so that the weight can be remarkably reduced; the middle of the two sides of the long side of the tool is provided with the buckling groove, so that an operator can take the tool conveniently.
The stress screening tool is of a multi-layer metal frame structure and is applied to debugging links such as stress screening of printed board assemblies. The single-layer frame is formed by combining a plurality of cross beams and longitudinal beams, a groove with a hole at the bottom is arranged in the middle of the frame, hexagonal copper studs can be inserted into the groove, the printed board assembly and the frame can be combined together through fastening screws on the back, and a plurality of printed board assemblies can be placed on the single-layer frame; through holes are formed in the periphery of the frames, when the multi-layer frames are piled up, long studs can penetrate through the through holes and are fastened by nuts, so that the multi-layer frames are combined together and enter test equipment once, and the working efficiency is improved; compared with other layers, the bottom layer frame is provided with a plurality of metal blocks at the periphery, and can be contacted with the working table surface, so that the stability of the whole structure is ensured.
The transfer lining is block foam subjected to antistatic treatment and is applied to a transfer link of the printed board assembly. The inner lining part area is hollowed and is dug with a plurality of hole slots, the hexagonal copper studs are inserted into the hole slots, so that limit placement of the printed board assembly can be realized, excessive vibration and contact damage during transportation are avoided, the hollowed area can ensure that the printed board assembly is not integrally protruded out of the tool, and the multilayer inner lining can be piled up during transportation, so that the transportation efficiency is improved; the middle of the two sides of the long side of the tool is provided with the buckling groove, so that an operator can take the tool conveniently.
As shown in fig. 1 to 5, the printed board assembly protection method of the invention is mainly realized by means of a hexagonal copper stud 1, a pre-coating protection tool 2, a coating tool 3, a stress screening tool 4 and a transfer lining 5. The printed board assembly for this embodiment is a radar wave control board, the overall dimension is 400mm×40mm, and both the front and back surfaces have components and parts, totally 8 through holes.
As shown in fig. 1, after the installation of the components is completed, the hexagonal copper stud 1 is used for protecting the printed board assembly. According to the number of the through holes, the diameter and the overall height of the printed board assembly, 14 hexagonal copper studs 1 with the diameter of M2.5 multiplied by 20+6 (the diameter of the thread M2.5, the length of the hexagon 20mm and the length of the thread 6 mm) are used for determining the single printed board assembly. 8 pairs of hexagonal copper studs 1 are connected end to end through 8 through holes of the printed board respectively, and the printed board assembly can be clamped in the middle after screwing the threads. The hexagonal copper stud 1 is not detached during subsequent picking, placing, transferring or operation, so that the printed board assembly is always kept in a suspended state and is not contacted with other objects.
As shown in fig. 2 to 3, when the printed board assembly is sprayed with the three-proofing paint, the protection tool 2 and the coating tool 3 before coating are used for device protection and coating. Firstly, an operator needs to grasp the hexagonal copper studs 1 on the printed board assembly and insert the hexagonal copper studs into corresponding hole grooves on the surface of the protection tool 2 before coating, and the hole grooves are symmetrically arranged (refer to fig. 7), so that no requirement is placed on the placing direction of the printed board assembly; then, an operator can protect devices and areas without spraying three-proofing paint by using a paper adhesive tape, and the printed board assembly is limited, so that the printed board assembly cannot move at will; the printed board assembly is turned over and the first two steps are repeated, so that the protection work of a plurality of printed board assemblies before coating can be completed; then, putting the printed circuit board assemblies into the coating tools 3, and designing each coating tool 3 to be capable of placing 4 printed circuit board assemblies according to the size of the workbench surface; finally, three-proofing paint is sprayed on the front surface and the back surface of the printed board assembly, and the printed board assembly cannot be moved due to air flow during paint spraying due to the limiting effect (refer to FIG. 8) of the surface hole grooves of the coating tool 3.
As shown in fig. 4, when the printed board assembly performs the stress screening work, the stress screening tool 4 is required. Firstly, inserting hexagonal copper studs 1 clamping a printed board assembly into hole grooves of frames of each layer of a stress screening tool 4 (refer to fig. 9 and 11); next, the hexagonal copper stud 1 is screwed into the back of the frame (refer to fig. 10 and 12) by using screws, so that the printed board assembly and the frame are fastened together; then stacking the frames, paying attention to the shape difference of the bottom frame and other frames, and fastening the frames together by using long studs penetrating through holes in the periphery of the frames and nuts; and finally, integrally placing the test bed into stress screening equipment, and clamping and fixing the test bed by using a pressing plate to perform a related test.
As shown in fig. 5, the transfer liner 5 is used when the printed board assembly is transferred. The hexagonal copper studs 1 holding the printed board assembly are inserted into the holes of the transfer lining 5 (refer to fig. 13), so that the printed board assembly is prevented from excessive shaking in the transfer process; considering human engineering, each transfer liner 5 can be provided with 7 printed board assemblies; operators can stack the transfer lining 5, transfer a plurality of printed board assemblies at one time, and can put the printed board assemblies into an anti-static turnover box to meet the requirement of long-distance vehicle-mounted transportation.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made without departing from the spirit and scope of the invention.
Claims (5)
1. A radar printed board assembly debugging and coating process protection method is characterized in that: the protection of the radar printed board assembly in the debugging and coating process is realized by using the hexagonal copper stud, the protection tool before coating, the coating tool, the stress screening tool and the transfer lining;
the hexagonal copper studs are standard components, one end of each hexagonal copper stud is provided with external threads, the other end of each hexagonal copper stud is provided with internal threads, and a plurality of pairs of hexagonal copper studs are connected end to end through printed board through holes, so that a printed board assembly can be clamped in the middle;
The pre-coating protection tool is a metal base and is applied to a device protection link before coating of the printed board assembly; the surface of the protection tool is dug with a plurality of holes, the positions and the sizes of the holes are related to the corresponding printed board assemblies, and the hexagonal copper studs are inserted into the holes, so that the limit placement of the printed board assemblies can be realized, and the printed board assemblies can not move at will when an operator performs operation;
The coating tool is a wooden base and is applied to a surface coating link of the printed board assembly; the surface of the coating tool is provided with a plurality of holes, the positions and the sizes of the holes are related to those of the corresponding printed board assemblies, and the hexagonal copper studs are inserted into the holes, so that the limit placement of the printed board assemblies can be realized, and the printed board assemblies can not move at will when an operator performs operation;
the stress screening tool is of a multi-layer metal frame structure and is applied to a debugging link of a printed board assembly; the single-layer frame is formed by combining a plurality of cross beams and longitudinal beams, a groove with a hole at the bottom is arranged in the middle of the frame, hexagonal copper studs can be inserted into the groove, the printed board assembly and the frame can be combined together through fastening screws on the back, and a plurality of printed board assemblies can be placed on the single-layer frame; through holes are formed in the periphery of the frames, when the multi-layer frames are piled up, long studs can penetrate through the through holes and are fastened by nuts, so that the multi-layer frames are combined together and enter test equipment once; compared with other layers, the bottom layer frame is provided with a plurality of metal blocks at the periphery, and can be contacted with the working table surface;
The transfer lining is block foam subjected to antistatic treatment and is applied to a transfer link of the printed board assembly; the lining partial area is hollowed out and is dug with a plurality of hole slots, the hexagonal copper studs are inserted into the hole slots to realize the limit placement of the printed board assembly, excessive vibration and contact damage are avoided during transportation, the hollowed out area can ensure that the printed board assembly is not integrally protruded out of the tool, and the multilayer lining can be piled up during transportation, so that the transportation efficiency is improved.
2. The method for debugging and coating a radar printed board assembly according to claim 1, wherein the method comprises the steps of: the long side both sides of protection frock before the coating unsettled, the operating personnel of being convenient for take.
3. The method for debugging and coating a radar printed board assembly according to claim 1, wherein the method comprises the steps of: the middle of the two sides of the long side of the coating tool is provided with a buckling groove, so that an operator can take the coating tool conveniently.
4. The method for debugging and coating a radar printed board assembly according to claim 1, wherein the method comprises the steps of: and a plurality of radar printed board assemblies are arranged on the coating fixture side by side.
5. The method for debugging and coating a radar printed board assembly according to claim 1, wherein the method comprises the steps of: the middle of the two sides of the long side of the transfer lining is provided with a buckling groove, so that an operator can take the transfer lining conveniently.
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| CN202111428293.XA CN114265024B (en) | 2021-11-27 | 2021-11-27 | Method for debugging radar printed board assembly and protecting coating process |
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| CN202111428293.XA CN114265024B (en) | 2021-11-27 | 2021-11-27 | Method for debugging radar printed board assembly and protecting coating process |
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| CN115140139A (en) * | 2022-07-28 | 2022-10-04 | 北京无线电测量研究所 | A printed board transfer trolley |
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| CN109112574A (en) * | 2018-10-18 | 2019-01-01 | 陈剑 | A kind of offline subsequent process of the prebaked anode of aluminium cell |
| CN109208642A (en) * | 2018-11-19 | 2019-01-15 | 中铁二十三局集团有限公司 | A kind of construction method of assembled under-traverse tunnel |
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| FR2642899B1 (en) * | 1989-02-06 | 1994-05-13 | Bull Cp8 | METHOD OF COATING AN INTEGRATED CIRCUIT ON A SUPPORT, DEVICE FOR IMPLEMENTING IT, AND ELECTRONIC ASSEMBLY OBTAINED BY IMPLEMENTING THE METHOD |
| CN210525394U (en) * | 2019-06-11 | 2020-05-15 | 河南世融同创门业有限公司 | Glue coating device for door industry manufacturing |
| CN111305588A (en) * | 2019-12-13 | 2020-06-19 | 智性纤维复合加固南通有限公司 | High-efficiency prestressed carbon fiber plate anchoring system |
| CN212964645U (en) * | 2020-06-30 | 2021-04-13 | 北京遥测技术研究所 | Flexible tooling suitable for AOI detection |
| CN111907097B (en) * | 2020-07-09 | 2024-11-29 | 江阴利尔包装有限公司 | Production line for hanging steel wire non-woven fabrics |
| CN112959796A (en) * | 2021-04-09 | 2021-06-15 | 广东汕樟轻工股份有限公司 | Full-servo-control high-speed multifunctional dry coating compound machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112574A (en) * | 2018-10-18 | 2019-01-01 | 陈剑 | A kind of offline subsequent process of the prebaked anode of aluminium cell |
| CN109208642A (en) * | 2018-11-19 | 2019-01-15 | 中铁二十三局集团有限公司 | A kind of construction method of assembled under-traverse tunnel |
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