Packaging method for combining screw to printed circuit board

Abstract

The invention relates to a packaging method for combining a screw to a printed circuit board, which is a method for combining the screw to the printed circuit board by a surface adhesion technique and comprises the following steps: providing a screw having a screw head, a screw rod extending out of one end of the screw head, and a sleeve sleeved on the periphery of the screw rod and movably arranged on one end face of the screw head; sleeving a limit ring on the screw rod to lean against one end of the sleeve so that part of the sleeve is limited in the screw head; arranging an adhesive layer on the other end face of the screw head; providing the printed circuit board with a plurality of through holes and arranging a soldering tin layer; making a tool use the screw through the adhesive layer and moving the tool so that the screw rod corresponds to the through holes; making the tool release the screw to drop the screw, and arranging a flange of the sleeve in the through holes; heating the soldering tin layer to melt tin, and cooling the soldering tin layer to the normal temperature so as to harden the soldering tin layer; fixedly arranging the sleeve in the through holes; and removing the limit ring. The method has the efficacy of achieving precise, non-offset, non-deflective and easy arrangement in the process of arranging a screw sleeve.

Description

technical field [0001] The invention relates to a packaging method for combining screws with a printed circuit board, in particular to a packaging method for combining screws with a printed circuit board, which can achieve the functions of precision, no deviation, no skew and easy setting when setting the screw sleeve method. Background technique [0002] see Figure 1 to Figure 5 as shown, figure 1 It is the structural representation of the existing screw Figure 1 , figure 2 is a structural representation Figure II , image 3 It is a schematic illustration of the conventional packaging method of combining screws with printed circuit boards Figure 1 , Figure 4 is a gesture Figure II , Figure 5 is a gesture Figure three . Generally, the existing customary method of combining screws on a printed circuit board is to use a screw 5 with a screw head 51, a screw rod 52 and a sleeve 53 to correspond to the perforation of a printed circuit board 7 with the sleeve ...

AI Technical Summary

Problems solved by technology

[0003] Although the above-mentioned prior known packaging method of combining screws with printed circuit boards can combine the screws 5 into the through holes 71 of the printed circuit board 7, when the screws 5 are set, their sleeves 53 directly correspond to the through holes 71, which The screw head 51 and the sleeve 53 cannot be compressed and fixed, so it needs to be placed manually, and the volume of the used screw 5 and the aperture of the perforation 71 are small. Therefore, when the flange 531 of the screw 5 sleeve 53 is to be arranged on the When perforating the hole 71, it is easy to cause errors during manual placement, so that the flange 531 of the sleeve 53 cannot be aligned with the perforation 71 smoothly, resulting in poor pressing of the printed circuit board and causing damage to the board, and when the flange 531 of the sleeve 53 cannot When it is installed in the through hole 71 once, the flange 531 of the sleeve 53 cannot be completely pressed into the through hole 71 when it is installed in the through hole 71 due to the inaccurate plane accuracy of the printed circuit board 7, and then it is easy to produce deviation. and skewed phenomenon

In addition, when assembling the screws 5 by pressing, each screw 5 must be used for pressing, so the surface mount technology widely used in the industry cannot be used to optimize the efficiency of assembling the screws 5

[0004] It can be seen that the above-mentioned existing packaging method of combining screws with printed circuit boards obviously still has inconvenience and defects in method and use, and needs to be improved urgently. further improvement

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general method has no suitable method to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

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