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a plugin method
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A plug-in and plug-in machine technology, which is applied in the direction of assembling printed circuits with electrical components, can solve problems such as virtual soldering, component falling off or voids, and achieve the effect of avoiding voids and vibrations
Active Publication Date: 2019-07-05
SHENZHEN KUNQI XINHUA
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Summary
Abstract
Description
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Application Information
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is to provide a plug-in method in view of the problems in the prior art that the components are easily to fall off or empty, and the solder joints are easy to be caused when the mechanized and automatic components are inserted.
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0036] This embodiment is used to illustrate the plug-in method disclosed in the present invention.
[0037] Using SEBS elastomer, its Shore hardness is 10, and its tensile strength is 5kg / cm 2 , the elongation at break is 300%, the tear strength is 5kg / cm, and the resistivity is 10 6 Ω·M, the penetration is 4.2mm. The thickness of the elastomer is 2mm.
[0038] Place the above elastic body on the platform of the plug-in machine for placing the PCB board, then place the PCB board on the elastic body and position it. Start the plug-in machine for automatic plug-in operation.
[0039] After the plug-in is completed, separate the elastic body from the PCB board, and observe that the components are inserted accurately, that the components do not fall off, and that the pins of the components do not bend.
Embodiment 2
[0041] This embodiment is used to illustrate the plug-in method disclosed in the present invention.
[0042] Nylon elastomer is used with a Shore hardness of 50 and a tensile strength of 40kg / cm 2 , the elongation at break is 700%, the tear strength is 30kg / cm, and the resistivity is 10 9 Ω·M, the penetration is 4.8mm. The thickness of the elastomer is 4mm.
[0043] Place the above elastic body on the platform of the plug-in machine for placing the PCB board, then place the PCB board on the elastic body and position it. Start the plug-in machine for automatic plug-in operation.
[0044] After the plug-in is completed, separate the elastic body from the PCB board, and observe that the components are inserted accurately, that the components do not fall off, and that the pins of the components do not bend.
Embodiment 3
[0046] This embodiment is used to illustrate the plug-in method disclosed in the present invention.
[0047] Using SEBS elastomer, its Shore hardness is 20, and its tensile strength is 15kg / cm 2 , the elongation at break is 400%, the tear strength is 10kg / cm, and the resistivity is 10 8 Ω·M, the penetration is 4.5mm. The thickness of the elastomer is 5mm.
[0048] Place the above elastic body on the platform of the plug-in machine for placing the PCB board, then place the PCB board on the elastic body and position it. Start the plug-in machine for automatic plug-in operation.
[0049] After the plug-in is completed, separate the elastic body from the PCB board, and observe that the components are inserted accurately, that the components do not fall off, and that the pins of the components do not bend.
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PUM
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Abstract
The invention provides a component plugging method for a PCB or a PCBA, so that problems of a PCBA reliability defect and easy shedding of components due to vibration during the automatic and mechanical component plugging process according to the PCBA assembly technology or problems of cavity existence and insufficient solder due to pin bending can be solved. According to the method, a plugging machine is used for plugging components into a PCB or a PCBA. The method is characterized in that the PCB or PCBA is arranged on an elastomer, wherein the shore hardness of the elastomer is 10 to 50, the tensile strength is 5 to 40kg / cm<2>, the elongation at break is 300 to 700%, and the tearing strength is 5 to 30kg / cm. When the method is used for plugging a component, the component can be localized into a through hole of a PCB or a PCBA effectively under the circumstance that the component is not bent, so that welding quality problems like missing solder and half solder due to pin bending of the component can be solved. Meanwhile, because the elastomer can absorb the vibration caused by the collision between the plugging machine and the PCB or PCBA effectively, PCBA reliability defect occurrence and component shedding due to the vibration can be avoided.
Description
[0001] The application number submitted on January 19, 2015 is CN201510024606.3, and the name is "a plug-in method"; the application number submitted on February 10, 2015 is CN201510070500.7, and the name is "a plug-in method" based on the Chinese invention patent application and claim its priority. technical field [0002] The invention relates to a plug-in method. Background technique [0003] In the electronics manufacturing industry, the through-hole welding process has a long history. Its high-strength welding reliability is unmatched and surpassed by other welding processes. It plays an important role in the electronic product manufacturing engineering and is an indispensable process in the electronic manufacturing process. one. Inserting components into a PCB (Printed Circuit Board, printed circuit board) is one of the key steps in the through-hole soldering process. [0004] In the entire PCBA (Printed Circuit Board Assembly) assembly process, the through-hole sold...
Claims
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Application Information
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