Reliable continuity test equipment for power battery FPC flexible circuit board

Abstract

The present application belongs to the technical field of E-TEST process in FPC production process, and particularly discloses a reliable conduction test equipment for power battery FPC flexible circuit board, which comprises: a feeding mechanism for FPC positioning and constant height feeding, an OK tray and an NG tray are arranged on the feeding mechanism; a feeding mechanism is arranged on the top of the feeding mechanism for realizing FPC feeding, transferring, code scanning and discharging operation; a test mechanism is arranged on the front side of the feeding structure for realizing stable pressing and electrical performance test of FPC; a material collecting and sorting mechanism is arranged on the rear side of the feeding mechanism for sorting FPC to the OK tray or the NG tray according to the test result. The present application can solve the automatic feeding, automatic discharging and automatic sorting of large size FPC, and can be connected with customer MES system to monitor the equipment operation at any time, realize that one person can operate multiple equipment, improve the test efficiency, and reduce the fault rate of manual sorting.

Description

Technical Field

[0001] This invention belongs to the technical field of E-TEST process in FPC production process, and particularly relates to a reliable conductivity testing device for power battery FPC flexible circuit boards. Background Technology

[0002] An FPC tester is a device specifically designed for testing the performance of FPC circuit boards. It can comprehensively test the continuity, electrical performance, and signal transmission performance of FPC circuit boards. The tester can automatically identify continuity conditions and record the results, improving testing efficiency and accuracy, and ensuring the normal operation of the FPC circuit board. During testing, the tester can simulate various operating conditions of the FPC circuit board in actual use, such as different voltages, currents, and temperatures, thereby more accurately detecting the performance and reliability of the circuit board.

[0003] Currently, automatic testing of small-sized (400mm x 600mm) FPCs has been achieved. However, for large-sized FPCs, some manufacturers still use manual loading and unloading for testing. They utilize existing manual testing equipment, combined with manual processes such as placing the FPCs, stepping tests, and retrieving them. Other manufacturers' large-sized FPC testing solutions also involve manual stretching and tightening of the FPCs, followed by stepping tests using motion control structures. However, manual assistance is still required for loading, unloading, and sorting of large-sized FPCs. Existing large-sized FPC testing solutions all use cylinder-controlled testing platforms. However, all of these testing devices have the following shortcomings in use. 1. Manual testing equipment solution: Low testing efficiency, one worker is required for each device, and the identification and judgment of test results rely entirely on manual sorting, which is prone to errors; 2. The manual clamping + equipment stepping solution has high testing efficiency, but it requires manual loading and clamping, unloading of the clamping mechanism, sorting of the overall results and manual marking. Large-size FPCs have a large number of PCs, resulting in low overall efficiency and high cost. Only one FPC can be clamped at a time, and one person can only supervise a maximum of two machines. 3. The large test bench uses cylinder lifting, which results in uneven torque and a lower test yield. 4. The large test stand uses a cylinder for lifting, which results in large contact accuracy errors between the upper and lower fixtures and inaccurate positioning. It is not suitable for FPC testing applications with high indentation requirements.

[0004] Therefore, it is necessary to invent a reliable conductivity testing device for power battery FPC flexible circuit boards to solve the above problems. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a reliable conductivity testing device for flexible circuit boards (FPCs) used in power batteries. This technical solution can be extended to the horizontal handling and conveying processes of other large-sized workpieces, and is applicable to both flexible and rigid materials. In addition to testing large-sized FPCs, it can also be applied to the automatic testing of large-sized PCBs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A reliable continuity testing device for flexible printed circuit boards (FPCs) used in power batteries, comprising: A feeding mechanism is used for FPC positioning and constant height feeding. The feeding mechanism is equipped with OK trays and NG trays. A feeding mechanism is located on top of the loading mechanism and is used to realize the FPC picking, transfer, barcode scanning and unloading operations; The testing mechanism is located on the front side of the feeding structure and is used to achieve stable pressing and electrical performance testing of the FPC. The receiving and sorting mechanism is located behind the feeding mechanism and is used to distribute the FPC to the OK tray or NG tray according to the test results. The control system communicates with the MES system to achieve QR code binding, test data storage, automatic cycle control, and full / empty tray indication.

[0007] Furthermore, the feeding mechanism includes a tray fixing mechanism and a tray lifting mechanism. The OK tray and NG tray are both horizontally installed on the top of the tray fixing mechanism, and the tray lifting mechanism is installed on the bottom of the tray fixing mechanism, which is used to drive the OK tray and NG tray to move vertically through the tray fixing mechanism.

[0008] Furthermore, the feeding mechanism includes a first translational telescopic mechanism, a first power unit, a first feeding lifting mechanism, a first vacuum adsorption mechanism, and a first connecting device. There are two first translational telescopic mechanisms, which are symmetrically arranged on the front and rear sides of the first vacuum adsorption mechanism. The first vacuum adsorption mechanism is located on the top of the feeding mechanism. The first connecting device is connected between the two first translational telescopic mechanisms to achieve synchronous movement of the two first translational telescopic mechanisms. The first power unit is installed on the first connecting device to provide power for the movement of the first translational telescopic mechanism. The first feeding lifting mechanism is connected between the first translational telescopic mechanism and the first vacuum adsorption mechanism to drive the first vacuum adsorption mechanism to move vertically.

[0009] Furthermore, the testing mechanism includes a lower test fixture, an upper test fixture, a testing host, a testing switch card, and an upper fixture lifting mechanism. The lower test fixture and the upper test fixture are both located in front of the feeding mechanism and are directly opposite each other. The testing host is installed in front of the upper test fixture and contains testing software for circuit testing of the FPC. The testing switch card is installed at the bottom of the lower test fixture, and the upper fixture lifting mechanism is installed at the top of the upper test fixture to drive the upper test fixture to move vertically and achieve the opening and closing operation with the lower test fixture.

[0010] Furthermore, the receiving and sorting mechanism includes a second translational telescopic mechanism, a second power unit, a second feeding and lifting mechanism, a second vacuum adsorption mechanism, and a second connecting device, and all the structures and distributions within the receiving and sorting mechanism are exactly the same as the structure and distribution of the feeding mechanism.

[0011] Furthermore, both the feeding mechanism and the receiving and sorting mechanism are dual-sided transmission and gantry telescopic structures, which can be retracted after feeding or receiving to allow space for the test platform to rise and fall.

[0012] Furthermore, the upper fixture of the testing mechanism is raised and lowered using a dual-motor synchronous drive, which, together with the guide rod, ensures the flatness of the pressing surface and the positioning accuracy.

[0013] Furthermore, the receiving and sorting mechanism is equipped with a lifting mechanism and a precision sensor on the material tray to ensure that the sorting height is consistent each time, thus avoiding scratches and stacking wear on the FPC.

[0014] Furthermore, the feeding mechanism is equipped with dual positioning discs, which can preload the next batch of discs during equipment operation, thereby improving the utilization rate.

[0015] The technical effects and advantages of this invention are as follows: 1. This solution can solve the automatic feeding, automatic unloading, and automatic sorting of large-size FPCs. It can be integrated with the customer's MES system to monitor the equipment operation at any time, enabling one person to operate multiple machines, improving testing efficiency, and reducing the error rate of manual sorting through automatic machine sorting. 2. Solve the error tolerance problem of manual sorting in the manual testing process for large-size FPCs; 3. Solves the problem of slow testing efficiency for large-size FPCs, reducing labor costs for enterprises; 4. Improve the testing yield of large-size FPCs and solve the problem of uneven indentation during testing.

[0016] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the feeding mechanism in this invention; Figure 3 This is a three-dimensional schematic diagram of the testing mechanism in this invention; Figure 4 This is a three-dimensional schematic diagram of the feeding mechanism in this invention; Figure 5 This is a three-dimensional schematic diagram of the material receiving and sorting mechanism in this invention.

[0019] In the picture: 1. Feeding mechanism; 11. OK tray; 12. NG tray; 13. Tray fixing mechanism; 14. Tray lifting mechanism; 2. Feeding mechanism; 21. First translational telescopic mechanism; 22. First power unit; 23. First feeding lifting mechanism; 24. First vacuum adsorption mechanism; 25. First connecting device; 3. Testing mechanism; 31. Under-test fixture; 32. On-test fixture; 33. Testing host; 34. Testing switch; 35. Upper fixture lifting mechanism; 4. Material receiving and sorting mechanism; 41. Second translational telescopic mechanism; 42. Second power unit; 43. Second feeding and lifting mechanism; 44. Second vacuum adsorption mechanism; 45. Second connecting device. Detailed Implementation

[0020] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. like Figures 1 to 4 As shown, a reliable conductivity testing device for flexible circuit boards (FPCs) used in power batteries includes: a loading mechanism 1, a feeding mechanism 2, a testing mechanism 3, a receiving and sorting mechanism 4, and a control system. The loading mechanism 1 is used for FPC positioning and constant height feeding, and is equipped with an OK tray 11 and an NG tray 12. The feeding mechanism 2 is located on the top of the loading mechanism 1 and is used to realize the picking, transferring, scanning, and unloading operations of FPCs. The testing mechanism 3 is located on the front side of the loading mechanism and is used to realize the stable pressing and electrical performance testing of FPCs. The receiving and sorting mechanism 4 is located on the rear side of the loading mechanism 1 and is used to distribute FPCs to the OK tray 11 or the NG tray 12 according to the test results. The control system communicates with the MES system to realize QR code binding, test data storage, automatic cycle control, and tray full / empty indication.

[0021] Working principle: 1. After the operator places the feeding tray on the feeding mechanism 1 and locks it in place, the feeding platform will rise to the height of the feeding plate adsorption position and then stop. 2. The feeding lifting mechanism descends, opens the vacuum, and adsorbs the FPC on the feeding mechanism 1. After the vacuum value reaches the set value, the feeding mechanism 2 rises, and the gantry telescopic mechanism stops at the scanning position. 3. The device is prompted to start reading the QR code on the FPC and linking with the MES system via communication. 4. After the code reading is completed, the translation mechanism sends the FPC to the test table position, the feeding lifting mechanism descends, the vacuum is disconnected, the FPC is placed on the fixture 31 under the test table, the feeding lifting mechanism rises, and the translation mechanism returns to the feeding position. 5. After the test bench receives the translation mechanism to the safe position, it drives the upper fixture to press down until the lower fixture contacts. The test software then drives the test switch 34 card to perform electrical performance testing on the FPC, checking for defects such as open circuit, short circuit, micro-open circuit, micro-open circuit, and four-wire failure. 6. After the test pieces are inspected, the upper fixture rises to a safe position, driving the receiving and translation mechanism to enter the test table, while the receiving and lifting mechanism descends, opening the vacuum to collect the FPCs from the lower fixture. Once the vacuum reaches the set value, the receiving and lifting mechanism rises, and based on the test results, the receiving and translation mechanism sorts the tested FPCs accordingly. 7. After the receiving and translation mechanism reaches the sorting position, the receiving and lifting mechanism descends, the vacuum is disconnected, the FPC is placed on the corresponding sorting tray, the receiving and lifting mechanism rises, and the translation mechanism moves to the feeding position to start the next feeding cycle. 8. During the cycle operation, the feeding and receiving processes share a single translation mechanism. After the test is completed, the translation mechanism first moves to the FPC receiving position on the test table. The receiving lifting mechanism collects the FPC from the fixture table and raises it. Then, the translation mechanism moves to the feeding position on the test table and places the FPC on the feeding vacuum mechanism onto the fixture 31 under the test table. The lifting mechanism rises, and the translation mechanism transfers the FPC on the receiving vacuum mechanism to the corresponding sorting position to start sorting. After sorting is completed, the translation mechanism moves to the feeding table position and starts to adsorb the FPC on the feeding table for cycle operation. 9. When the FPC on the feeding platform detects that there is no material, the feeding platform will automatically descend to the material tray replacement position and prompt the operator to add the FPC to be tested; 10. When the FPC on the sorting platform is full, the operator is prompted to remove the FPC from the sorting platform, and the sorting platform will automatically rise to the sorting position.

[0022] like Figure 4 As shown, the feeding mechanism 1 includes a tray fixing mechanism 13 and a tray lifting mechanism 14. The OK tray 11 and NG tray 12 are both horizontally installed on the top of the tray fixing mechanism 13, and the tray lifting mechanism 14 is installed on the bottom of the tray fixing mechanism 13. It is used to drive the OK tray 11 and NG tray 12 to move vertically through the tray fixing mechanism 13. The feeding mechanism 1 is equipped with a double positioning plate, which can preload the next batch of trays when the equipment is running, thereby improving the utilization rate. 1. FPC tray preparation: The operator uses the positioning holes on the FPC and the needle positioning plate of the feeding mechanism 1 to initially position the FPC. The needle positioning mechanism can be adjusted in the X and Y directions according to the positioning holes of the FPC. There are two sets of positioning plates. The operator can prepare the next set of positioning plates during the operation of the equipment to improve the equipment utilization rate. 2. FPC loading and positioning: The operator aligns the prepared positioning plate with the loading mechanism 1 for loading, and the locking mechanism locks the positioning plate to achieve precise positioning of the loaded FPC. 3. To ensure the consistency of the FPC's height position when it is conveyed to the testing mechanism 3, the loading mechanism 1 has a lifting function and uses a high-precision stepper motor to drive the FPC lifting. 4. When the FPC on the positioning tray is conveyed and the precision sensor cannot detect the FPC, the feeding lifting mechanism will raise the remaining FPC. The raising process is detected by the precision sensor to ensure that the raising height is consistent. This ensures that the FPC is at the same height on the feeding platform each time it is fed and adsorbed, thus ensuring the stability of the machine's feeding and adsorption. 5. After the FPC on the feeding platform has finished adsorbing, the feeding platform will automatically descend to the add / replace material tray position, release the material tray locking mechanism, and prompt the operator to replace the material tray and add the FPC to be tested.

[0023] like Figure 2 As shown, the feeding mechanism 2 includes a first translational telescopic mechanism 21, a first power unit 22, a first feeding lifting mechanism 23, a first vacuum adsorption mechanism 24, and a first connecting device 25. There are two first translational telescopic mechanisms 21, which are symmetrically arranged on the front and rear sides of the first vacuum adsorption mechanism 24. The first vacuum adsorption mechanism 24 is located on the top of the feeding mechanism 1. The first connecting device 25 is connected between the two first translational telescopic mechanisms 21 to realize the synchronous movement of the two first translational telescopic mechanisms 21. The first power unit 22 is installed on the first connecting device 25 to provide power for the movement of the first translational telescopic mechanism 21. The first feeding lifting mechanism 23 is connected between the first translational telescopic mechanism 21 and the first vacuum adsorption mechanism 24 to drive the first vacuum adsorption mechanism 24 to move in the vertical direction. Both the feeding mechanism 2 and the receiving and sorting mechanism 4 are double-sided transmission and gantry telescopic structures, which can be retracted after feeding or receiving to make room for the lifting and lowering of the test platform.

[0024] The feeding mechanism 2 needs to transfer the FPC on the loading platform to the fixture of the testing mechanism 3 for automatic testing, so it has lifting, translation, and vacuum adsorption functions. The first feeding lifting mechanism 23 is responsible for sucking up and releasing the FPC, the first translation telescopic mechanism 21 is responsible for transferring the FPC from the loading platform to the testing platform, and the first vacuum adsorption mechanism 24 is responsible for securing the FPC to ensure that the FPC does not fall or get damaged during the transfer process. To achieve automatic feeding of large-size FPCs, a large-size feeding mechanism 2 is required. The large-size feeding mechanism 2 must be balanced during operation, requiring conveying mechanisms on both sides, and cannot convey on one side only. Lifting Mechanism: The first feeding lifting mechanism 23 connects the loading platform and the testing fixture, ensuring that the FPC is not scratched or abraded during the translation and transfer process. Therefore, the lifting part of the feeding mechanism 2 adopts a two-end lifting support mechanism, and the lifting is achieved by a combination of cylinders and sliders. Translation mechanism: The first translation telescopic mechanism 21 realizes the FPC transfer function between the feeding mechanism 1 and the test. In order to avoid the first translation telescopic mechanism 21 being crushed by the lifting and lowering of the test table, the first translation telescopic mechanism 21 adopts a telescopic mechanism for transfer. At the end of the test table, the first translation telescopic mechanism 21 extends out. After the feeding is completed, the first translation telescopic mechanism 21 retracts. There is no translation mechanism on the test table. The test table can be raised and lowered by itself without causing any damage to the first translation telescopic mechanism 21. Vacuum adsorption: During the FPC conveying process, to avoid damage and scratches to the FPC, the first vacuum adsorption mechanism 24FPC is used. The FPC is opened at the feeding end and adsorbed. After vacuum adsorption and fastening, it is conveyed. The vacuum is released at the testing end and the FPC is placed on the testing platform. QR code confirmation: During the translation of the first translation telescopic mechanism 21 to the test platform, it will first pause at the scanning position and scan the QR code on the FPC with a barcode scanner to connect with the customer's MES system. After the test is completed, the test data of the FPC will be stored in the QR code position to realize the traceability of the automatic test of the FPC.

[0025] like Figure 3 As shown, the testing mechanism 3 includes a lower fixture 31, a higher fixture 32, a testing host 33, a test switch 34, and an upper fixture lifting mechanism 35. The lower fixture 31 and the higher fixture 32 are both located in front of the feeding mechanism 1 and are directly opposite each other. The testing host 33 is installed in front of the higher fixture 32 and contains testing software for circuit testing of the FPC. The test switch 34 is installed at the bottom of the lower fixture 31, and the upper fixture lifting mechanism 35 is installed at the top of the higher fixture 32. It is used to drive the higher fixture 32 to move vertically to achieve the opening and closing operation with the lower fixture 31. The upper fixture lifting mechanism of the testing mechanism 3 is driven by two motors synchronously, and the guide rod ensures the flatness of the pressing and the positioning accuracy. Test implementation method: The test platform uses a dedicated FPC fixture, a 34-card test switch, a test control box, and test software to perform electrical performance testing on the FPC. For testing large-size FPCs, the test platform is large, and driving the fixture to lift and lower it alone will result in the fixture being unbalanced and the fixture probes having poor contact stability with the FPC, leading to a low test yield. Solution to test stability: This solution uses a dual-motor drive to ensure the stability of the test torque and the lifting of the test fixture. A power steel and guide rod lifting mechanism are selected to drive the upper and lower fixtures to press together for testing. Automatic testing implementation: After the feeding mechanism 2 transfers the FPC to the test fixture, when the feeding translation device returns to the safe position of the loading platform, the control software drives the test platform to press down to the contact position of the fixture probe, the test software drives the switch card to perform electrical performance testing and judgment of the FPC, and outputs the test results to the control software, and the control software drives the test platform to rise.

[0026] like Figure 5As shown, the receiving and sorting mechanism 4 includes a second translational telescopic mechanism 41, a second power unit 42, a second feeding and lifting mechanism 43, a second vacuum adsorption mechanism 44, and a second connecting device 45. All the structures and distributions within the receiving and sorting mechanism 4 are exactly the same as those of the feeding mechanism 2. The material tray of the receiving and sorting mechanism 4 is equipped with a lifting mechanism and a precision sensor to ensure that the sorting height is consistent each time, thus avoiding scratches and stacking wear on the FPC. Receiving materials: 1. When the test bench completes testing and rises to a safe position, the receiving machine begins sorting the FPCs on the test fixture. Based on the test results from test mechanism 3, the receiving mechanism transports the tested FPCs to the corresponding sorting positions. The conveying mechanism and the feeding section share a telescopic translation mechanism, while the vacuum and lifting mechanisms are independent. The lifting mechanism is responsible for sucking up FPCs on the test bench and placing them on the sorting table. The translation mechanism is responsible for transporting the FPCs from the test bench to the sorting table. The vacuum mechanism is responsible for securing the FPCs, ensuring that they do not fall or get damaged during transport. 2. Lifting Mechanism: The lifting mechanism is located between the testing platform and the sorting platform to ensure that the FPC is not scratched or abraded during the horizontal transfer process. Therefore, the lifting part of the receiving mechanism adopts a two-end lifting support mechanism, and the lifting is achieved by a combination of cylinders and sliders. 3. Vacuum Adsorption: To avoid damage and scratches to the FPC during the FPC collection process, vacuum adsorption is used. The vacuum is opened at the test platform end to adsorb the FPC. After vacuum adsorption and fixation, the material is collected. The vacuum is released at the sorting platform end, and the FPC is placed in the corresponding sorting platform position according to the test results.

[0027] Sorting: 1. Based on the test results, the receiving mechanism moves the FPC to the corresponding sorting mechanism and stacks the FPC on the receiving device onto the corresponding sorting platform. The sorting platform detects the height of the sorted FPC through a precision sensor. After each sorting is completed, the sorting platform is lowered to the corresponding height to ensure that the sorted FPC is not scratched or worn. 2. FPC sorting position: If the test result is OK, the receiving mechanism will move the FPC to the OK sorting station; if the test result is NG, the receiving mechanism will move the FPC to the NG sorting station. 3. FPC sorting: After confirming that the sorting position is correct, the receiving lifting mechanism descends and releases the vacuum, placing the FPC on the corresponding sorting platform. The lifting mechanism then rises, and the receiving translation mechanism returns to the feeding platform position. 4. Lifting and Lowering of the Sorting Platform: After the FPCs are sorted onto the lifting platform, the platform is positioned using precision sensors. The platform descends to ensure that all FPCs sorted are at the same height, preventing scratches and wear during sorting. If the sorting platform is full, the control software will prompt the operator to remove the remaining FPCs. The lifting platform will then rise to the correct sorting height based on the precision sensors, ensuring consistent height for the next sorting operation.

[0028] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0029] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0031] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0032] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A reliable continuity test device for a power battery FPC flexible circuit board, characterized in that, include: The feeding mechanism (1) is used for FPC positioning and constant height feeding. The feeding mechanism (1) is equipped with an OK tray (11) and an NG tray (12). The feeding mechanism (2) is located on top of the loading mechanism (1) and is used to realize the material picking, transfer, barcode scanning and material unloading operations of the FPC; The testing mechanism (3) is located on the front side of the feeding structure and is used to achieve stable pressing and electrical performance testing of the FPC. The receiving and sorting mechanism (4) is located on the rear side of the feeding mechanism (1) and is used to distribute the FPC to the OK tray (11) or NG tray (12) according to the test results. The control system communicates with the MES system to achieve QR code binding, test data storage, automatic cycle control, and full / empty tray indication.

2. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 1, characterized in that: The feeding mechanism (1) includes a tray fixing mechanism (13) and a tray lifting mechanism (14). The OK tray (11) and NG tray (12) are both horizontally installed on the top of the tray fixing mechanism (13). The tray lifting mechanism (14) is installed on the bottom of the tray fixing mechanism (13) and is used to drive the OK tray (11) and NG tray (12) to move vertically through the tray fixing mechanism (13).

3. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 2, characterized in that: The feeding mechanism (2) includes a first translational telescopic mechanism (21), a first power device (22), a first feeding lifting mechanism (23), a first vacuum adsorption mechanism (24), and a first connecting device (25). There are two first translational telescopic mechanisms (21), which are symmetrically arranged on the front and rear sides of the first vacuum adsorption mechanism (24). The first vacuum adsorption mechanism (24) is located on the top of the feeding mechanism (1). The first connecting device (25) is connected between the two first translational telescopic mechanisms (21) to realize the synchronous movement of the two first translational telescopic mechanisms (21). The first power device (22) is installed on the first connecting device (25) to provide power for the movement of the first translational telescopic mechanism (21). The first feeding lifting mechanism (23) is connected between the first translational telescopic mechanism (21) and the first vacuum adsorption mechanism (24) to drive the first vacuum adsorption mechanism (24) to move in the vertical direction.

4. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 3, characterized in that: The testing mechanism (3) includes a test bench fixture (31), a test bench fixture (32), a test host (33), a test switch (34) card, and an upper fixture lifting mechanism (35). The test bench fixture (31) and the test bench fixture (32) are both located on the front side of the feeding mechanism (1) and are in a directly opposite position. The test host (33) is installed on the front side of the test bench fixture (32) and is equipped with test software for performing circuit tests on the FPC. The test switch (34) card is installed at the bottom of the test bench fixture (31), and the upper fixture lifting mechanism (35) is installed on the top of the test bench fixture (32) to drive the test bench fixture (32) to move vertically and perform opening and closing operations with the test bench fixture (31).

5. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 4, characterized in that: The receiving and sorting mechanism (4) includes a second translational telescopic mechanism (41), a second power unit (42), a second feeding lifting mechanism (43), a second vacuum adsorption mechanism (44), and a second connecting device (45). All the structures and distributions within the receiving and sorting mechanism (4) are exactly the same as those of the feeding mechanism (2).

6. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 5, characterized in that: The feeding mechanism (2) and the receiving and sorting mechanism (4) are both double-sided transmission and gantry telescopic structure, which can be retracted after feeding or receiving to allow space for the test platform to rise and fall.

7. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 6, characterized in that: The upper fixture of the testing mechanism (3) is raised and lowered by dual motors in a synchronous drive, and the guide rods are used to ensure the flatness of the pressing and the positioning accuracy.

8. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 7, characterized in that: The receiving and sorting mechanism (4) is equipped with a lifting mechanism and a precision sensor to ensure that the sorting height is consistent each time, thus avoiding scratches and stacking wear on the FPC.

9. The reliable continuity test apparatus for power battery FPC flexible circuit board according to claim 8, characterized in that: The feeding mechanism (1) is equipped with dual positioning discs, which can preload the next batch of discs during equipment operation to improve utilization rate.

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