PCBA real-time test mechanism
By designing a PCBA real-time testing mechanism and employing IoT real-time monitoring and automatic line stop warning, the accuracy problem of stress testing for electronic printed circuits was solved, improving production precision and product yield, and reducing scrap rate and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, stress testing of electronic printed circuits is carried out in the early stages of manufacturing design, which has poor accuracy and cannot be linked with the PCB production process. This leads to the exposure of functional defects in the product after subsequent processing or delivery, increasing manufacturing costs and damaging brand trust.
Design a PCBA real-time testing mechanism, including a testing fixture, testing components, a tray assembly, and a controller. Employ IoT for real-time monitoring, perform full-product stress testing through pressure sensors and test probes, and combine IoT data acquisition and controller for real-time data analysis and automatic line stop warning.
It enables stress and performance monitoring across the entire product range, improves production accuracy, reduces scrap rates, adapts to testing of different products, is easy to operate, and reduces costs.
Smart Images
Figure CN224051782U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electronic industry assembly technical field especially relates to a kind of PCBA real-time testing mechanism. BACKGROUND
[0002] The stress test of electronic printed circuit is usually implemented in the early stage of manufacturing design, by sample test actual and deformation after being stressed, to judge and adjust, to avoid the damage caused by stress to product in subsequent production process.
[0003] However, the product defect related to strain stress often occurs in the processing after sampling, even the functional defect is exposed after delivering to end customer, and the traditional stress test is carried out separately, and only a small amount of samples are tested, cannot be linked with the production process of PCB, accuracy is poor, reaction is slow. When the problem is captured, the number of good products is not small. Whether factory repair or product recall, not only will increase additional manufacturing cost, but also will reduce the brand trust in market, thereby bringing immeasurable loss to enterprise. SUMMARY
[0004] To solve the above technical problems, one technical scheme of the utility model is as follows:
[0005] Provide a kind of PCBA real-time testing mechanism, it includes: detection clamp, test component, support plate component and controller,
[0006] The detection clamp includes base and the upper cover movably connected with base;
[0007] The test component includes installation profiling groove, test needle plate, test pin, pressure sensor, first positioning pin, buffer spring, the installation profiling groove is set on the base and the upper cover, the test needle plate is set in the installation profiling groove, to position the installation position of test needle plate, test pin and pressure sensor are provided on the test needle plate, the pressure sensor is used to stress test to be measured product, the controller is connected with test pin and force sensing sheet respectively, the first positioning pin and the buffer spring are set on the test needle plate;
[0008] The test plate assembly comprises a test plate, a positioning hole, a first limiting block, a sliding guide, a sliding seat, a first adjusting bolt, a sliding guide groove, a clamping seat, a second limiting block, an elastic piece and a second adjusting bolt, the test plate is movably arranged in the installation profiling groove, the positioning hole is arranged on the test plate, the first positioning pin passes through the test plate and the positioning hole on the product to position the test plate and the product, a plurality of first limiting blocks are arranged on one side of the test plate, the sliding guide is arranged on the test plate on the side of the first limiting block, the sliding seat is movably connected with the sliding guide, the first adjusting bolt is threadedly connected with the sliding seat, and the bottom end of the first adjusting bolt is in contact with the top surface or the side wall of the sliding guide to lock the position of the sliding seat; the sliding guide groove is horizontally arranged on the sliding seat, one or more clamping seats are arranged on the sliding seat, the inner side wall of the clamping seat is provided with the second limiting block, the inner end of the second limiting block is provided with the elastic piece, a screw hole is arranged on the second limiting block, and the end of the second adjusting bolt is connected with the screw hole after passing through the outer side wall of the clamping seat and the sliding guide groove, so that the position of the clamping seat and the second limiting block is locked.
[0009] In a preferred embodiment of the present application, the detection clamp further comprises a bracket and a lifting driving mechanism, the bracket is arranged on the base, and the lifting driving mechanism is arranged on the bracket and drives the upper cover to move up and down to approach or move away from the base.
[0010] In a preferred embodiment of the present application, the bracket is provided with a lifting guide, and the upper cover is movably connected with the lifting guide.
[0011] In a preferred embodiment of the present application, the pressure sensor is pasted on the gasket through double-sided adhesive tape, and the gasket is detachably arranged on the test needle plate.
[0012] In a preferred embodiment of the present application, the controller comprises a Raspberry Pi, and the pressure sensor is connected with the Raspberry Pi through an Internet of Things collector.
[0013] In a preferred embodiment of the present application, the test plate is provided with a second positioning pin movably connected with the positioning hole on the product to be tested.
[0014] In a preferred embodiment of the present application, the first limiting block is in L-shaped structure and is detachably connected with the test plate.
[0015] In a preferred embodiment of the present application, the sliding guide comprises a sliding guide rail or a sliding guide rod.
[0016] In a preferred embodiment of the present application, the outer side wall of the clamping seat is provided with a threaded hole or a through hole connected with the second adjusting bolt.
[0017] In a preferred embodiment of the present application, the clamping seat and the second limiting block are of an integrated structure, and the second limiting block is detachably connected with the elastic member.
[0018] The present application has the advantages that: the real-time monitoring of the Internet of Things is adopted, so that the stress and other performances of the monitored products are monitored, the production accuracy and the product yield are improved, the scrap rate is reduced, the cost control is facilitated, and in addition, different test needle plates can be selected, and the positions of the sliding seat and the limiting block can be adjusted to adapt to the detection of different to-be-detected products, so that the adaptability is high and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 is a structure schematic view of a preferred embodiment of the PCBA real-time testing mechanism of the present application;
[0021] Figure 2 is a partial structure schematic view of a preferred embodiment of the PCBA real-time testing mechanism of the present application;
[0022] Figure 3 is a supporting plate assembly schematic view of a preferred embodiment of the PCBA real-time testing mechanism of the present application;
[0023] Figure 4 is a network structure schematic view of a preferred embodiment of the PCBA real-time testing mechanism of the present application. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0025] Please refer to Figures 1-4 The embodiments of the present application include:
[0026] A PCBA real-time testing mechanism can be directly installed on the original production line detection equipment, and the structure comprises a detection clamp, a test assembly, a supporting plate assembly and a controller.
[0027] The detection clamp comprises a base 11, an upper cover 12, a support 13 and a lifting driving mechanism 14. The support is arranged on the base, and the lifting driving mechanism is arranged on the support and connected with the upper cover at the output end to drive the upper cover to move up and down to approach or move away from the base.
[0028] Further preferably, the support is provided with a lifting guide 17, and the upper cover is movably connected with the lifting guide to improve the accuracy of lifting operation.
[0029] Further preferably, the lifting guide comprises a lifting guide rod or a lifting guide rail, and the upper cover is connected with the lifting guide through a sliding sleeve or a sliding block.
[0030] Further preferably, the base is provided with a control button 15 and a display 16.
[0031] The test assembly comprises a mounting profiling groove 21, a test needle plate 22, test pins 23, a force sensing sheet 24, first positioning pins 25 and buffer springs 26.
[0032] The mounting profiling groove is arranged on the upper part of the base and the lower part of the upper cover, and the test needle plate is arranged in the mounting profiling groove to position the installation position of the test needle plate. The test needle plate is provided with test pins and a force sensing sheet. The test pins in contact with the PCB to be tested are used for detecting the voltage, current, chip working state and line continuity of the PCB. The force sensing sheet is used for stress testing of the PCB. The test needle plate is also provided with a plurality of first positioning pins and a plurality of buffer springs.
[0033] Further preferably, the test needle plate is connected with the base and the upper cover through fixing screws to prevent displacement and falling off during detection.
[0034] Further preferably, the test needle plate is provided with four force sensing sheets, which are distributed in the areas with high strain inside the clamp. The force sensing sheets can be pasted on the gaskets through double-sided tape. The gaskets can be connected with the test needle plate through bonding, clamping, screw connection and the like.
[0035] The controller is connected with the lifting driving mechanism, the test pins and the pressure sensor (force sensing sheet). During stress testing, the force sensing sheet collects the pressure received by the PCB to be tested in real time, and the pressure data is collected and converted by the Internet of Things collector. The pressure data can be sent to computers, pads, mobile phones and other terminals and Dashboard for real-time data viewing. At the same time, the pressure data is also sent to the database for viewing historical data and facilitating traceability.
[0036] That is, through wired or wireless data transmission, real-time analysis of the monitored stress value data and other test data, setting up intelligent early warning, linking with the production system, starting the automatic stop line prevention mechanism, and according to the needs, timely notification to the factory quality and production management personnel; The obtained data can also be analyzed, trend analyzed, and effective process improvement measures can be taken in time to avoid risks.
[0037] Among them, the Internet of Things collector can adopt AD acquisition board / module. The controller includes Raspberry Pi, which is used to collect pressure test data and judge these data. If it meets the requirements, it will continue testing, if it does not meet the requirements, it will issue an alarm, and at the same time control the production line to pause / adjust the operation; Then send the test data and the judgment result to the display screen for display, and send it to the database for storage.
[0038] The supporting plate assembly includes a test supporting plate 30, a positioning hole, a first limiting block 31, a sliding guide 32, a sliding seat 33, a first adjusting bolt 34, a sliding guide groove, a clamping seat 36, a second limiting block 37, an elastic element 38, and a second adjusting bolt 39.
[0039] The test supporting plate is movably arranged in the installation profiling groove. The test supporting plate is provided with a positioning hole. A first positioning pin passes through the positioning hole of the test supporting plate and the product to position the test supporting plate and the product. A plurality of first limiting blocks are arranged on one side of the top surface of the test supporting plate. A sliding guide is arranged on the test supporting plate at the side of the first limiting block. A sliding seat is movably connected with the sliding guide. A first adjusting bolt is threadedly connected with the sliding seat, and the bottom end of the first adjusting bolt is in contact with the top surface or the side wall of the sliding guide to fix the sliding seat.
[0040] The sliding guide groove is horizontally arranged on the sliding seat. One or more clamping seats are sleeved on the sliding seat. The inner side wall of the clamping seat is provided with a second limiting block. The inner end of the second limiting block is provided with an elastic element. The outer side wall of the clamping seat and the second limiting block are provided with screw holes. The end of the second adjusting bolt is connected with the screw holes after passing through the sliding guide groove to lock the positions of the clamping seat and the second limiting block.
[0041] Further preferably, a second positioning pin movably connected with the positioning hole on the product to be tested is arranged on the test supporting plate.
[0042] Further preferably, the first limiting block is in L-shaped structure and is detachably connected with the test supporting plate.
[0043] Further preferably, the sliding guide includes a sliding rail or a sliding guide rod, and the sliding seat is connected with the sliding rail or the sliding guide rod through a sliding block or a shaft sleeve.
[0044] Further preferably, the clamping seat and the second limiting block are in one-piece structure.
[0045] Further preferably, the second limiting block is detachably connected with the elastic member.
[0046] In use, first, the first limiting block is installed according to the specification of the product to be measured, so as to position two corners and one side of the product; then the second adjusting bolt is loosened, the clamping seat is selected and moved, so that the second limiting block can be uniformly aligned with the other side of the product, so as to provide uniform pressure, then the second adjusting bolt is tightened to lock the position of the second limiting block; the sliding seat is moved according to the size of the product, so that the second limiting block cooperates with the first limiting block to clamp the product, then the first adjusting bolt is tightened to lock the position of the sliding seat.
[0047] The beneficial effects of the PCBA real-time testing mechanism are:
[0048] 1. Breakthrough traditional testing methods, real-time monitoring of the Internet of Things can be applied to the effective monitoring of all key positions of external force, so as to monitor the stress and other performance of the product, improve the accuracy of production and the yield of the product, reduce the scrap rate, and be conducive to cost control;
[0049] 2. Not only can different test needle plates be selected, but also the positions of the sliding seat and the limiting block can be adjusted to adapt to the detection of different products to be measured, so that the adaptability is strong and the operation is convenient.
[0050] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields according to the content of the utility model specification is also included in the patent protection range of the utility model.
Claims
1. A PCBA real-time test mechanism, characterized in that, The utility model relates to a detection clamp, test assembly, pallet assembly and controller, The detection clamp comprises a base and an upper cover movably connected with the base. The test assembly comprises a mounting profiling groove, a test needle plate, test pins, a pressure sensor, a first positioning pin and a buffer spring, the mounting profiling groove is arranged on the base and the upper cover, the test needle plate is arranged in the mounting profiling groove to position the installation position of the test needle plate, the test needle plate is provided with test pins and a pressure sensor, the pressure sensor is used for stress testing of the product to be tested, the controller is connected with the test pins and the force sensor respectively, the first positioning pin and the buffer spring are arranged on the test needle plate. The pallet assembly comprises a test pallet, a positioning hole, a first limiting block, a sliding guide, a sliding seat, a first adjusting bolt, a sliding guide groove, a clamping seat, a second limiting block, an elastic element and a second adjusting bolt, the test pallet is movably arranged in the mounting profiling groove, the test pallet is provided with the positioning hole, the first positioning pin passes through the test pallet and the positioning hole on the product to position the test pallet and the product, one side of the test pallet is provided with a plurality of first limiting blocks, the test pallet on the side of the first limiting block is provided with the sliding guide, the sliding seat is movably connected with the sliding guide, the first adjusting bolt is threadedly connected with the sliding seat, and the bottom end of the first adjusting bolt is in contact with the top surface or the side wall of the sliding guide to lock the position of the sliding seat, the sliding guide groove is horizontally arranged on the sliding seat, one or more clamping seats are arranged on the sliding seat, the inner side wall of the clamping seat is provided with the second limiting block, the inner end of the second limiting block is provided with the elastic element, the second limiting block is provided with a screw hole, and the end of the second adjusting bolt passes through the outer side wall of the clamping seat and the sliding guide groove and is connected with the screw hole to lock the positions of the clamping seat and the second limiting block. The detection clamp further comprises a support and a lifting driving mechanism, the support is arranged on the base, and the lifting driving mechanism is arranged on the support and drives the upper cover to move up and down to approach or move away from the base.
2. The PCBA real-time test mechanism according to claim 1, wherein, The support is provided with a lifting guide, and the upper cover is movably connected with the lifting guide.
3. The PCBA real-time testing mechanism of claim 2, wherein, The pressure sensor is pasted on a gasket through double-sided adhesive tape, and the gasket is detachably arranged on the test needle plate.
4. The PCBA real-time testing mechanism of claim 1, wherein, The controller comprises a Raspberry Pi, and the pressure sensor is connected with the Raspberry Pi through an Internet of Things collector.
5. The PCBA real-time testing mechanism of claim 1, wherein, The test pallet is provided with a second positioning pin movably connected with the positioning hole on the product to be tested.
6. The PCBA real-time testing mechanism of claim 1, wherein, The first limiting block is in L-shaped structure and detachably connected with the test pallet.
7. The PCBA real-time testing mechanism of claim 1, wherein, The sliding guide comprises a sliding rail or a sliding rod.
8. The PCBA real-time testing mechanism of claim 1, wherein, The outer side wall of the clamping seat is provided with a screw hole or a through hole connected with the second adjusting bolt.
9. The PCBA real-time testing mechanism of claim 1, wherein, The clamping seat and the second limiting block are in one-piece structure, and the second limiting block and the elastic element are detachably connected.
10. The PCBA real-time testing mechanism of claim 1, wherein,