A shockproof platform for automatic optical detection of PCBA

CN224693863UActive Publication Date: 2026-08-28SHENZHEN PURENDA TECH CO LTD
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Patent Information

Application Number
CN202521546994.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2026-08-28
Estimated Expiration
2035-07-23

AI Technical Summary

Technical Problem

[0003]载台在对PCB板的光学检测时,利用光的干涉条纹进行精密测量,干涉条纹对光程差的变化极其敏感,但现有的载台缺少减震结构,会导致任何振动引起的光路长度或角度的微小变化都会导致干涉条纹剧烈晃动或消失,测量无法进行

Benefits of technology

[0012]1、通过调节每个气囊内的气压,可以精确地控制每个隔振脚的支撑高度和支撑力,从而实现整个被支撑设备的水平调平,多个滑块在侧滑槽杆的外侧进行位移,滑块带动气囊独立移动不同的距离,从而改变相邻气浮隔振脚之间的间距,这是实现多组气浮脚间距调节的核心动作,当外界振动通过基座传递到隔振脚时,气囊内的气体会被压缩或膨胀。气体的可压缩性吸收了大部分低频振动能量。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of PCBA automatic optical detection's shockproof platform, it is related to the technical field of optical detection, including pedestal, air side sliding slot rod, air bag and rubber spring, the top of the pedestal is attached with the holder, the bottom end of the side sliding slot rod of the holder equidistantly arranged, the top of the holder is provided with distance adjusting mechanism, the distance adjusting mechanism is adjusted according to the area of the PCB board processed, or the specification of the instrument used for detection, the spacing of the lifting is adjusted, the positioning of the instrument of different specifications is satisfied, the outside of the air bag is provided with damping mechanism, the damping mechanism is filled into certain pressure gas to air bag by equidistantly arranged air bag. By adjusting the air pressure in each air bag, the support height and support force of each vibration isolation foot can be accurately controlled, so as to realize the horizontal leveling of the entire supported equipment. Multiple sliding blocks displace on the outside of the side sliding slot rod, and the sliding blocks drive the air bags to independently move different distances.
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Claims

1. A vibration-resistant stage for automated optical inspection of PCBA, characterized in that: The device includes a base (1), air-side sliding rods (3), an airbag (11), and a rubber spring (16). A support (2) is attached to the top of the base (1). The bottom of the side sliding rods (3) are evenly spaced on the support (2). An adjustment mechanism (5) is set above the support (2). The adjustment mechanism (5) adjusts the support spacing according to the area of ​​the PCB board being processed or the specifications of the instrument being tested, so as to meet the positioning of instruments of different specifications. A shock-absorbing mechanism (10) is set on the outside of the airbag (11). The shock-absorbing mechanism (10) fills the airbag (11) with a certain pressure of gas through the evenly spaced airbags (11). The airbag (11) expands and generates an upward supporting force. The rubber spring (16) absorbs most of the low-frequency vibration energy.

2. The anti-vibration stage for automatic optical inspection of PCBA according to claim 1, characterized in that: The adjusting mechanism (5) includes a side sliding rod (3), positioning holes (4), a bearing plate (6), a rubber pad (7), a slider (8), and a nut (9). The side sliding rod (3) has positioning holes (4) at equal intervals on its outer side. The bearing plate (6) is located directly above the side sliding rod (3). The rubber pad (7) is attached to the top of the bearing plate (6). The slider (8) is connected to the outer side of the side sliding rod (3). The nut (9) is inserted through the inside of the rubber pad (7). The side sliding rod (3) is connected to one side of the slider (8) through the positioning holes (4) at equal intervals.

3. The anti-vibration stage for automatic optical inspection of PCBA according to claim 2, characterized in that: The bearing plate (6) is connected to the outside of the threaded rod (13) by symmetrically arranged nuts (9).

4. The anti-vibration stage for automatic optical inspection of PCBA according to claim 1, characterized in that: The shock absorption mechanism (10) includes an airbag (11), a transverse base plate (12), a threaded rod (13), an air inlet (14), a precision control valve (15), and a rubber spring (16). The airbag (11) is symmetrically arranged at the bottom end of the base (1). The rubber spring (16) is arranged inside the airbag (11). The threaded rod (13) is arranged directly above the airbag (11). The bearing plate (6) is connected through the outer side of the threaded rod (13). The air inlet (14) is opened on the outer side of the airbag (11). The precision control valve (15) is installed directly above the base (1). The transverse base plate (12) is attached to the bottom of the airbag (11). The top of the slider (8) is welded to one side of the transverse base plate (12).

5. The anti-vibration stage for automatic optical inspection of PCBA according to claim 2, characterized in that: The airbag (11) is connected to the top of the slider (8) via a horizontal base plate (12) at the bottom end, and the slider (8) is arranged parallel to the side slide bar (3).

6. The anti-vibration stage for automatic optical inspection of PCBA according to claim 2, characterized in that: The airbag (11) is connected to the output end of the precision control valve (15) through an air inlet (14) that runs through one side.