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Circuit board universal fixture for vibration test board and using method thereof

A vibration test bench and circuit board technology, which is applied in vibration testing, machine/structural component testing, measuring devices, etc., can solve the problems of cost increase, detection cycle lengthening, and efficiency reduction, so as to reduce labor costs, Improved versatility and improved productivity

Pending Publication Date: 2020-04-14
长沙万为机器人有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the detection cycle is lengthened, the efficiency is reduced, and the cost is also increased.

Method used

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  • Circuit board universal fixture for vibration test board and using method thereof
  • Circuit board universal fixture for vibration test board and using method thereof
  • Circuit board universal fixture for vibration test board and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] from Figure 1 to Figure 5 It can be seen that the circuit board universal fixture for the vibration test bench of the present invention is installed on the bottom plate 7 of the vibration test bench, including two limit bars 1, two movable bars 2, six compression screws 3, six pressure blocks 4, four Locking screw 5 and six lower limit blocks 6,

[0038] The limit bar 1 is in the shape of ㄇ as a whole, and the horizontal section in the middle of the limit bar 1 is milled with a longitudinal strip hole 11 running through the upper and lower sides, and the vertical section at both ends of the limit bar 1 is milled with mounting holes 12 that run through the upper and lower sides. Limiting strips 1 are installed horizontally on the front edge and the rear edge of the vibration test bench bottom plate 7 respectively through screws through the mounting holes 12, and the two limiting strips 1 are arranged in parallel front and back on the vibration test bench bottom plate 7;...

Embodiment 2

[0050] The difference between this embodiment and the first embodiment is that the cross-section of the movable bar 2 corresponding to the top and bottom of the pressing block 4 is an integrated convex structure, and the pressing block 4 and the movable bar 2 are both made of insulating materials.

[0051] The method for using the circuit board universal fixture for this vibration test bench of the present invention comprises the following steps:

[0052] S1, unscrew the locking screw 5, adjust the distance between the adjacent movable strips 2 according to the front and rear sides of the circuit board to be tested, so that the left and right sides of the circuit board to be tested are located directly above the bottom surface of the protruding part of the adjacent movable strip 2; Tighten the locking screw 5 to fix the left and right positions of the limit bar 2;

[0053] S2, unscrew the compression screw 3, turn the briquetting block 4 so that the short side of the briquetti...

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Abstract

The invention discloses a circuit board universal fixture for a vibration test board and a using method thereof. The universal fixture comprises two limiting strips which are arranged at the edge of abottom plate of the vibration test board in parallel front and back; at least two movable strips with adjustable left and right positions are vertically connected between the two limiting strips; a plurality of pressing blocks capable of rotating around the axes of the pressing screws are symmetrically connected to the adjacent movable strips through the pressing screws. The cross section of themovable strip corresponding to the pressing block up and down is of an inverted T-shaped structure; the height of the protruding part on the movable strip is smaller than the thickness of the to-be-tested circuit board; the length of the long side of the pressing block is larger than the width of the protruding part on the movable strip, the length of the short side of the pressing block is not larger than the width of the protruding part on the movable strip, and the pressing block extending out of the protruding part of the movable strip is driven by the pressing screw to move downwards to clamp a to-be-tested circuit board on the bottom surface of the adjacent protruding part of the movable strip. The circuit board universal fixture can be used for vibration test clamping of circuit boards of various sizes, and the universality is improved; quick installation of the circuit board can be realized, the production efficiency is greatly improved, and the labor cost is reduced.

Description

technical field [0001] The invention relates to the technical field of circuit board vibration testing, in particular to a general circuit board fixture for a vibration test bench and a use method thereof. Background technique [0002] Circuit boards are widely used in various industries, whether it is traditional industrial control or new electronic products, automotive military and other fields. The circuit board realizes the electrical connection between the various components in the circuit, replaces the complicated wiring, and reduces the wiring workload in the traditional way. All the components are welded on a substrate, which reduces the size of the whole machine and reduces the product cost. Due to the small size and dense layout of the components, it is not easy to check them one by one. However, there may be false soldering of the pins when the components are soldered. It is necessary to perform a vibration test on the circuit board to identify products with false...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02
CPCG01M7/027
Inventor 蔡佳豪李振东刘坤
Owner 长沙万为机器人有限公司
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