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smt positioning fixture

A technology for positioning jigs and positioning holes, which can be used in manufacturing tools, welding equipment, printed circuits, etc., and can solve problems such as deviation between the main board and the sub-board, and short circuit with tin

Active Publication Date: 2022-05-17
FU TAI HUA IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when passing through the furnace, the main board and the sub-board are easily misaligned and cause a short circuit with tin

Method used

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Examples

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Embodiment Construction

[0016] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

[0017] Such as Figure 1 to Figure 4 As shown, the SMT positioning fixture of the present invention includes a tray 1 , a positioning assembly 2 , a plurality of guide posts 3 , at least one first upper magnet 4 , at least one second upper magnet 5 and at least one lower magnet 6 .

[0018] The guide post 3 passes through the tray 1 and the positioning assembly 2 , so that the tray 1 and the positioning assembly 2 can be arranged close to and far from each other along the axial direction of the guide post 3 .

[0019] The tray 1 includes an upper surface 11 and a lower surface 12, the upper surface 11 of the tray 1 is provided with an accommodating groove 13, and at least one positioning hole 14 is provided on the tray 1 and located at the accommodating groove 13, on the tray 1 and located at the accommodating groove 13. Both sides of the...

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PUM

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Abstract

The invention provides an SMT positioning jig, which includes a tray, a positioning assembly, a first upper magnet, a second upper magnet and a lower magnet. The tray is used for placing the main board of a mobile phone. There are positioning holes on the tray. The positioning assembly includes a substrate and a slider. group and positioning column, the slider group is slidably arranged on the base plate, the positioning column is set on the base plate and located in the positioning hole of the tray, the first upper magnet and the second upper magnet are fixed on the tray, and the lower magnet is fixed on the slider On the group, when the slider group slides relative to the base plate so that the lower magnet corresponds to the first upper magnet, the lower magnet and the first upper magnet repel each other and drive the tray and the positioning assembly away from each other, so that the positioning column does not protrude from the mobile phone motherboard , to carry out the tin printing operation, when the slider group slides relative to the substrate so that the lower magnet corresponds to the second upper magnet, the lower magnet and the second upper magnet attract each other and drive the tray and the positioning assembly to approach each other, so that the positioning column protrudes It is used on mobile phone motherboards for mounting and reheating operations.

Description

technical field [0001] The invention relates to the field of surface mount technology (Surface Mount Technology, SMT), in particular to an SMT positioning jig. Background technique [0002] The main board and sub-board of the mobile phone are welded together by SMT. The steps are: first print tin on the main board, then mount the sub-board on the main board, and finally pass the main board and the sub-board through the reflow furnace. However, when passing through the furnace, the main board and the sub-board are easily misaligned, resulting in a short circuit with tin. Contents of the invention [0003] In view of the above situation, the present invention provides an SMT positioning jig, which can relatively accurately position the main board and the sub-board of the mobile phone to prevent short circuit between tin and tin. [0004] The SMT positioning fixture of the present invention comprises a tray, a positioning assembly, at least one first upper magnet, at least o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K3/08
CPCB23K3/087H05K13/0069H05K1/144H05K2201/083H05K2203/166H05K2203/167H05K13/0015H05K13/0053
Inventor 刘宇青李西航车雪峰陈日清夏星
Owner FU TAI HUA IND SHENZHEN