A multi-station FCT testing device

Abstract

The utility model discloses a kind of multi-station FCT testing devices, including several lifting conveyors and several double-layer FCT testing machines, the lifting conveyor with the double-layer FCT testing machine is alternately arranged;The lifting conveyor includes first rack, first conveying component and the first lifting component for driving the first lifting component lifting;The double-layer FCT testing machine includes second rack, upper layer conveying component, lower layer conveying component, positioning component, second lifting component and testing component;When any double-layer FCT testing machine is tested to PCB board, adjacent lifting conveyor drives first conveying component lifting by first lifting component, to adjust the height of first conveying component, other PCB board is transferred to the upper layer conveying component of next double-layer FCT testing machine by the lower layer conveying component of double-layer FCT testing machine and lifting conveyor and carries out FCT test by corresponding testing component.The utility model can realize continuous production, reduce waiting time, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a multi-station FCT testing device. Background Technology

[0002] In the electronics manufacturing industry, after PCB boards are assembled, they need to undergo FCT (Functional Circuit Test) to verify whether their electrical functions and performance meet the design requirements.

[0003] Existing FCT testing equipment requires completing the processes of loading, positioning, testing, and unloading, resulting in a long testing cycle for a single PCB board. With the continuous increase in production capacity, existing FCT testing equipment needs to wait for the completion of PCB board testing before it can test the next PCB board, thus leading to low production efficiency and an inability to match the pace of high-speed production lines. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a multi-station FCT testing device, which can realize continuous production, reduce waiting time, and improve production efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A multi-station FCT testing device includes several lifting conveyors and several double-layer FCT testing machines, with the lifting conveyors and the double-layer FCT testing machines arranged alternately. Each lifting conveyor includes a first frame, a first conveying component mounted on the first frame, and a first lifting component for driving the first conveying component to move up and down. The first conveying component is used to convey PCB boards. Each double-layer FCT testing machine includes a second frame, an upper conveying component, a lower conveying component, a positioning component, a second lifting component, and a testing component mounted on the second frame. Both the upper and lower conveying components are used to convey PCB boards. The positioning component is used to position the PCB board on the upper conveying component. The second lifting component is used to drive the upper conveying component to move up and down as a whole. The testing component is used to test the positioned PCB board.

[0007] As a further improvement to the above technical solution, the first conveying assembly includes a first lifting frame and two first conveyor belts disposed on the first lifting frame, the two first conveyor belts being parallel to each other.

[0008] As a further improvement to the above technical solution, the first lifting assembly includes an upper fixed plate, a lower fixed plate, a motor, a lead screw, and a lead screw nut. The upper fixed plate and the lower fixed plate are both fixed on the first frame. The lead screw is vertically arranged, with its top end rotatably connected to the upper fixed plate and its bottom end rotatably connected to the lower fixed plate. The motor is used to drive the lead screw to rotate. The lead screw nut is threadedly connected to the lead screw and is fixedly connected to the first lifting frame.

[0009] As a further improvement to the above technical solution, the first lifting assembly further includes two first slide rods and two first sliding sleeves. The two first slide rods are both vertically arranged, and the two ends of the first slide rods are respectively fixed to the upper fixed plate and the lower fixed plate. The two first slide rods are symmetrically arranged along the axis of the lead screw. The two first sliding sleeves are slidably engaged with the two first slide rods respectively. The two first sliding sleeves are installed on the first lifting frame.

[0010] As a further improvement to the above technical solution, the motor is installed at the bottom of the upper fixed plate, and the motor and the lead screw are driven by a synchronous belt pulley module.

[0011] As a further improvement to the above technical solution, the upper conveying assembly and the lower conveying assembly have the same structure. The upper conveying assembly includes a second lifting frame and two second conveyor belts arranged on the second lifting frame, with the two second conveyor belts parallel to each other.

[0012] As a further improvement to the above technical solution, the test component includes a bracket, an upper mold, a lower mold, and a drive component. The bracket and the lower mold are fixed on the second frame. The lower mold is located between two second conveyor belts. The drive component is mounted on the bracket. The upper mold is connected to the telescopic end of the drive component and is located directly above the lower mold. A positioning pin is provided on the top of the lower mold, and several test probes are provided on the bottom of the upper mold. The drive component is used to drive the upper mold to move closer to or away from the lower mold.

[0013] As a further improvement to the above technical solution, the bracket includes a first mounting plate and four second sliding rods. The second sliding rods are vertically arranged, and the top of the second sliding rods is connected to the first mounting plate. The driving component is mounted on the first mounting plate, and the telescopic end of the driving component is connected to the second mounting plate. The upper mold is mounted on the bottom of the second mounting plate. The second mounting plate is provided with four second sliding sleeves, and the four second sliding sleeves are respectively slidably engaged with the four second sliding rods.

[0014] As a further improvement to the above technical solution, the second lifting frame is provided with four third sliding sleeves, and the four third sliding sleeves are respectively slidably engaged with the four second sliding rods.

[0015] As a further improvement to the above technical solution, the second lifting assembly includes two lifting cylinders, which are mounted on the second frame, and the telescopic ends of the lifting cylinders are connected to the second lifting frame.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a multi-station FCT testing device. By setting up several lifting conveyors and several double-layer FCT testing machines, the lifting conveyors and double-layer FCT testing machines are alternately set up. When any double-layer FCT testing machine is testing a PCB board, the adjacent lifting conveyor drives the first conveying component to rise and fall through the first lifting component to adjust the height of the first conveying component. Other PCB boards are transferred to the upper conveying component of the next double-layer FCT testing machine through the lower conveying component and the lifting conveyor and are subjected to FCT testing through the corresponding testing component. Thus, continuous production can be achieved, waiting time can be reduced, and production efficiency can be improved. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a structural schematic diagram provided by an example of this utility model;

[0019] Figure 2 yes Figure 1 A partial sectional view;

[0020] Figure 3 yes Figure 1 Schematic diagram of the structure of the medium-lift conveyor;

[0021] Figure 4 yes Figure 3 Internal structure diagram;

[0022] Figure 5 yes Figure 1 Schematic diagram of a dual-layer FCT testing machine;

[0023] Figure 6 yes Figure 5 Internal structure diagram;

[0024] Figure 7 yes Figure 6 The front view;

[0025] Figure 8 yes Figure 6 Schematic diagram of the structure of the middle support and the upper mold;

[0026] Figure 9 yes Figure 6 A schematic diagram of the structure of the second frame and the lower mold.

[0027] Reference numerals: 1-Lifting conveyor, 11-First frame, 12-First conveying assembly, 121-First lifting frame, 122-First conveyor belt, 13-First lifting assembly, 131-Upper fixed plate, 132-Lower fixed plate, 133-Motor, 134-Lead screw, 135-Lead screw nut, 136-First slide rod, 137-First sliding sleeve, 138-Synchronous belt pulley module;

[0028] 2-Double-layer FCT testing machine, 21-Second frame, 22-Upper conveyor assembly, 221-Second lifting frame, 222-Second conveyor belt, 223-Third sliding sleeve, 23-Lower conveyor assembly, 24-Positioning assembly, 25-Second lifting assembly, 251-Lifting cylinder, 26-Test assembly, 261-Bracket, 2611-First mounting plate, 2612-Second sliding rod, 262-Upper mold, 2621-Test probe, 263-Lower mold, 2631-Positioning pin, 264-Drive component, 265-Second mounting plate, 266-Second sliding sleeve. Detailed Implementation

[0029] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0030] Reference Figure 1 and Figure 2 An example of this utility model provides a multi-station FCT testing device, which includes several lifting conveyors 1 and several double-layer FCT testing machines 2, with the lifting conveyors 1 and the double-layer FCT testing machines 2 arranged alternately.

[0031] Specifically, the lifting conveyor 1 includes a first frame 11, a first conveying component 12 disposed on the first frame 11, and a first lifting component 13 for driving the first conveying component 12 to move up and down. The first conveying component 12 is used to convey PCB boards.

[0032] Furthermore, the dual-layer FCT tester 2 includes a second frame 21, an upper conveying assembly 22, a lower conveying assembly 23, a positioning assembly 24, a second lifting assembly 25, and a test assembly 26, all mounted on the second frame 21. The upper conveying assembly 22 and the lower conveying assembly 23 are both used to convey PCB boards. The positioning assembly 24 is used to position the PCB board on the upper conveying assembly 22. The second lifting assembly 25 is used to drive the upper conveying assembly 22 to lift as a whole. The test assembly 26 is used to test the positioned PCB board.

[0033] In this embodiment, there are three lifting conveyors 1 and two double-layer FCT testing machines 2. During testing, the entire process includes the following steps:

[0034] Step 1: The first PCB board enters the first lifting conveyor 1 from the production line and is transported to the first double-layer FCT tester 2 for FCT testing.

[0035] Specifically, in the initial state, the first conveying component 12 of the first lifting conveyor 1 is flush with the upper conveying component 22 of the first double-layer FCT tester 2. The first PCB board enters the first conveying component 12 of the first lifting conveyor 1 from the production line. Then, the first conveying component 12 starts and horizontally conveys the first PCB board to the upper conveying component 22 of the first double-layer FCT tester 2. The positioning component 24 of the first double-layer FCT tester 2 accurately positions the first PCB board. The second lifting component 25 of the first double-layer FCT tester 2 drives the upper conveying component 22 to descend as a whole, so that the first PCB board descends to the working position. The testing component 26 of the first double-layer FCT tester 2 begins to perform FCT testing on the first PCB board.

[0036] Step 2: The second PCB board is sequentially transported from the production line through the first lifting conveyor 1, the lower conveyor assembly 23 of the first double-layer FCT tester 2, and the second lifting conveyor 1 to the second double-layer FCT tester 2 for FCT testing.

[0037] Specifically, the second PCB board enters the first conveying component 12 of the first lifting conveyor 1 from the production line. Then, the first lifting component 13 of the first lifting conveyor 1 drives the first conveying component 12 to descend, making it level with the lower conveying component 23 of the first double-layer FCT tester 2. Simultaneously, the first lifting component 13 of the second lifting conveyor 1 drives the first conveying component 12 to descend, making it level with the lower conveying component 23 of the first double-layer FCT tester 2. Then, the first conveying component 12 starts, horizontally conveying the second PCB board to the lower conveying component 23 of the first double-layer FCT tester 2. The lower conveying component 23 of the first double-layer FCT tester 2 then horizontally conveys the second PCB board to the second... The first conveying component 12 of the first lifting conveyor 1 is then driven upward by the first lifting component 13 of the second lifting conveyor 1, making the first conveying component 12 of the second lifting conveyor 1 level with the upper conveying component 22 of the second double-layer FCT tester 2. Then, the first conveying component 12 of the second lifting conveyor 1 starts and horizontally conveys the second PCB board to the upper conveying component 22 of the second double-layer FCT tester 2. The positioning component 24 of the second double-layer FCT tester 2 accurately positions the second PCB board. The second lifting component 25 of the second double-layer FCT tester 2 drives the upper conveying component 22 to descend as a whole, so that the second PCB board descends to the working position. The testing component 26 of the second double-layer FCT tester 2 begins to perform FCT testing on the second PCB board.

[0038] Step 3: The first double-layer FCT tester 2 completes the FCT test on the first PCB board. The first PCB board is transported from the upper conveyor component 22 of the first double-layer FCT tester 2 to the next process via the second lifting conveyor 1, the lower conveyor component 23 of the second double-layer FCT tester 2, and the third lifting conveyor 1.

[0039] Specifically, after the first dual-layer FCT tester 2 completes the FCT test on the first PCB board, the first lifting component 13 of the second lifting conveyor 1 drives the first conveying component 12 to rise, making the first conveying component 12 of the second lifting conveyor 1 level with the upper conveying component 22 of the first dual-layer FCT tester 2. Then, the upper conveying component 22 of the first dual-layer FCT tester 2 starts, conveying the first PCB board to the first conveying component 12 of the second lifting conveyor 1. Next, the first lifting component 13 of the second lifting conveyor 1 drives the first conveying component 12 to descend, making the first conveying component 12 of the second lifting conveyor 1 level with the lower conveying component 23 of the second dual-layer FCT tester 2. Then, the second lifting conveyor... The first conveying component 12 of machine 1 is activated, conveying the first PCB board to the lower conveying component 23 of the second double-layer FCT test machine 2. At the same time, the first lifting component 13 of the third lifting conveyor 1 drives the first conveying component 12 to descend, making the first conveying component 12 of the third lifting conveyor 1 level with the lower conveying component 23 of the second double-layer FCT test machine 2. Then, the lower conveying component 23 of the second double-layer FCT test machine 2 is activated, conveying the first PCB board to the first conveying component 12 of the third conveyor. Then, the first lifting component 13 of the third lifting conveyor 1 drives the first conveying component 12 to rise. Finally, the first conveying component 12 of the third lifting conveyor 1 is activated, conveying the first PCB board to the next process.

[0040] Step 4: The second double-layer FCT tester 2 completes the FCT test on the second PCB board, and the first PCB board is transported from the upper conveyor assembly 22 of the second double-layer FCT tester 2 to the next process via the third lifting conveyor 1.

[0041] Specifically, after the second double-layer FCT tester 2 completes the FCT test on the second PCB board, the first lifting component 13 of the third lifting conveyor 1 drives the first conveying component 12 to rise, so that the first conveying component 12 of the third lifting conveyor 1 is flush with the upper conveying component 22 of the second double-layer FCT tester 2. Then, the upper conveying component 22 of the second double-layer FCT tester 2 starts to transport the second PCB board to the first conveying component 12 of the third lifting conveyor 1. Finally, the first conveying component 12 of the third lifting conveyor 1 starts to transport the first PCB board to the next process.

[0042] Step 5: The above steps form a cycle to achieve continuous production.

[0043] Specifically, when any one of the double-layer FCT testers 2 is testing a PCB board, the adjacent lifting conveyor 1 drives the first conveying component 12 to rise and fall through the first lifting component 13 to adjust the height of the first conveying component 12. Other PCB boards are transferred to the upper conveying component 22 of the next double-layer FCT tester 2 through the lower conveying component 23 and the lifting conveyor 1 of the double-layer FCT tester 2 and are subjected to FCT testing through the corresponding test component 26. In this way, continuous production can be achieved, waiting time can be reduced, and production efficiency can be improved.

[0044] In other embodiments, multiple lifting conveyors 1 and double-layer FCT testing machines 2 can be added to form a longer production line to meet high production capacity requirements.

[0045] Reference Figure 3 and Figure 4 In some preferred embodiments, the first conveying assembly 12 includes a first lifting frame 121 and two first conveyor belts 122 disposed on the first lifting frame 121, the two first conveyor belts 122 being parallel to each other.

[0046] Understandably, the two parallel first conveyor belts 122 form a stable support surface, which can distribute the weight of the PCB board to both sides, thereby evenly supporting and conveying the PCB board and avoiding offset or jamming caused by unilateral force.

[0047] Furthermore, the spacing between the two first conveyor belts 122 is adjustable, making them compatible with PCBs of various sizes.

[0048] In some preferred embodiments, the first lifting assembly 13 includes an upper fixed plate 131, a lower fixed plate 132, a motor 133, a lead screw 134, and a lead screw nut 135. The upper fixed plate 131 and the lower fixed plate 132 are both fixed on the first frame 11. The lead screw 134 is vertically arranged, with its top end rotatably connected to the upper fixed plate 131 and its bottom end rotatably connected to the lower fixed plate 132. The motor 133 is used to drive the lead screw 134 to rotate. The lead screw nut 135 is threadedly connected to the lead screw 134 and is fixedly connected to the first lifting frame 121.

[0049] It is understandable that the motor 133 drives the lead screw 134 to rotate, the lead screw 134 drives the lead screw nut 135 to move along the length of the lead screw 134, and the lead screw nut 135 drives the first lifting frame 121 to move along the length of the lead screw 134. When the first lifting frame 121 moves to the preset height, the motor 133 stops rotating and achieves self-locking, thereby improving the displacement accuracy of the first conveying assembly 12 when it is lifted as a whole.

[0050] Furthermore, the first lifting assembly 13 also includes two first slide rods 136 and two first sliding sleeves 137. The two first slide rods 136 are both vertically arranged, and the two ends of the first slide rods 136 are respectively fixed on the upper fixed plate 131 and the lower fixed plate 132. The two first slide rods 136 are symmetrically arranged along the axis of the lead screw 134. The two first sliding sleeves 137 are slidably engaged with the two first slide rods 136 respectively, and the two first sliding sleeves 137 are installed on the first lifting frame 121.

[0051] It is understandable that when the first lifting frame 121 is raised or lowered, the first lifting frame 121 drives the two first sliding sleeves 137 to slide along the length direction of the two first sliding rods 136 respectively, thereby preventing the first lifting frame 121 from tilting and improving the stability of the first conveying assembly 12 when it is raised or lowered as a whole.

[0052] Furthermore, the motor 133 is installed at the bottom of the upper fixed plate 131, and the motor 133 and the lead screw 134 are driven by the synchronous pulley module 138. On the one hand, the longitudinal height of the equipment can be reduced, making the equipment more compact. On the other hand, the load-bearing capacity can be improved by adjusting the transmission ratio of the synchronous pulley module 138.

[0053] Reference Figures 5 to 9 In some preferred embodiments, the upper conveying assembly 22 and the lower conveying assembly 23 have the same structure. The upper conveying assembly 22 includes a second lifting frame 221 and two first conveyor belts 122 disposed on the second lifting frame 221. The two first conveyor belts 122 are parallel to each other.

[0054] It is understandable that the upper conveying assembly 22 and the lower conveying assembly 23 have the same structure, which allows for parts interchangeability. At the same time, it reduces the types of spare parts and lowers spare parts inventory costs.

[0055] In some preferred embodiments, the test assembly 26 includes a bracket 261, an upper mold 262, a lower mold 263, and a drive component 264. The bracket 261 and the lower mold 263 are fixed on the second frame 21. The lower mold 263 is located between two second conveyor belts 222. The drive component 264 is mounted on the bracket 261. The upper mold 262 is connected to the telescopic end of the drive component 264. The upper mold 262 is located directly above the lower mold 263. The top of the lower mold 263 is provided with a positioning pin 2631. The bottom of the upper mold 262 is provided with a plurality of test probes 2621. The drive component 264 is used to drive the upper mold 262 to move closer to or away from the lower mold 263.

[0056] Understandably, after the PCB board enters the upper conveying assembly 22, the upper conveying assembly 22 transports the PCB board between the upper mold 262 and the lower mold 263. The positioning assembly 24 positions the PCB board so that it is directly above the lower mold 263. Then, the second lifting assembly 25 drives the upper conveying assembly 22 to descend as a whole, transferring the PCB board from the upper conveying assembly 22 to the lower mold 263. The positioning pin 2631 of the lower mold 263 is inserted into the positioning hole on the PCB board. Then, the driving component 264 drives the upper mold 263. 2. The upper mold 262 descends, causing several test probes 2621 at the bottom of the upper mold 262 to contact the test points on the PCB board, thereby testing the PCB board. After the test is completed, the drive component 264 drives the upper mold 262 to rise, and the second lifting component 25 drives the upper conveying component 22 to rise as a whole, so that the PCB board on the lower mold 263 is transferred to the upper conveying component 22. Finally, the upper conveying component 22 transports the tested PCB board to the next lifting conveyor 1, thereby realizing automatic testing of the PCB board and improving testing efficiency.

[0057] It should be noted that the drive component 264 can be a power device such as a cylinder, hydraulic cylinder, or electric cylinder, and is not specifically limited in this embodiment.

[0058] Furthermore, the bracket 261 includes a first mounting plate 2611 and four second sliding rods 2612. The second sliding rods 2612 are vertically arranged, and their tops are connected to the first mounting plate 2611. A driving member 264 is mounted on the first mounting plate 2611, and the telescopic end of the driving member 264 is connected to a second mounting plate 265. An upper mold 262 is mounted on the bottom of the second mounting plate 265. Four second sliding sleeves 266 are provided on the second mounting plate 265, and the four second sliding sleeves 266 are respectively slidably engaged with the four second sliding rods 2612.

[0059] It is understandable that when the driving component 264 drives the second mounting plate 265 and the upper mold 262 to rise and fall as a whole, the four second sliding sleeves 266 on the second mounting plate 265 slide along the length direction of the four second sliding rods 2612 respectively. This prevents the upper mold 262 from tilting and ensures that the test probes 2621 at the bottom of the upper mold 262 accurately contact the test points on the PCB board, thereby ensuring the test accuracy of the PCB board.

[0060] In some preferred embodiments, the second lifting frame 221 is provided with four third sliding sleeves 223, and the four third sliding sleeves 223 are respectively slidably engaged with the four second sliding rods 2612.

[0061] It is understandable that when the second lifting component 25 drives the second lifting frame 221 to rise or fall, the second lifting frame 221 drives the four third sliding sleeves 223 to slide along the length direction of the four second sliding rods 2612, thereby preventing the upper conveying component 22 from tilting, ensuring the stability of the upper conveying component 22 when it is raised or lowered, and thus ensuring that the PCB board is accurately placed at the top set position of the lower mold 263.

[0062] Furthermore, the second lifting assembly 25 includes two lifting cylinders 251, which are mounted on the second frame 21. The telescopic ends of the lifting cylinders 251 are connected to the second lifting frame 221. The two lifting cylinders 251 simultaneously drive the second lifting frame 221 to rise or fall, so that the second lifting frame 221 is subjected to uniform force. At the same time, it can reduce the load on a single lifting cylinder 251 and improve the service life of the lifting cylinder 251.

[0063] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A multi-station FCT testing device, characterized in that, It includes several lifting conveyors and several double-layer FCT testing machines, wherein the lifting conveyors and the double-layer FCT testing machines are arranged alternately; The lifting conveyor includes a first frame, a first conveying component disposed on the first frame, and a first lifting component for driving the first conveying component to rise and fall. The first conveying component is used to convey PCB boards. The dual-layer FCT testing machine includes a second frame, an upper conveying component, a lower conveying component, a positioning component, a second lifting component, and a testing component, all mounted on the second frame. The upper and lower conveying components are used to convey PCB boards. The positioning component is used to position the PCB board on the upper conveying component. The second lifting component is used to drive the upper conveying component to move up and down as a whole. The testing component is used to test the positioned PCB board.

2. The multi-station FCT testing device according to claim 1, characterized in that, The first conveying assembly includes a first lifting frame and two first conveyor belts disposed on the first lifting frame, the two first conveyor belts being parallel to each other.

3. The multi-station FCT testing device according to claim 2, characterized in that, The first lifting assembly includes an upper fixed plate, a lower fixed plate, a motor, a lead screw, and a lead screw nut. The upper fixed plate and the lower fixed plate are both fixed on the first frame. The lead screw is vertically arranged, with its top end rotatably connected to the upper fixed plate and its bottom end rotatably connected to the lower fixed plate. The motor is used to drive the lead screw to rotate. The lead screw nut is threadedly connected to the lead screw and is fixedly connected to the first lifting frame.

4. The multi-station FCT testing device according to claim 3, characterized in that, The first lifting assembly further includes two first slide rods and two first sliding sleeves. The two first slide rods are both vertically arranged, and the two ends of the first slide rods are respectively fixed to the upper fixed plate and the lower fixed plate. The two first slide rods are symmetrically arranged along the axis of the lead screw. The two first sliding sleeves are slidably engaged with the two first slide rods respectively. The two first sliding sleeves are installed on the first lifting frame.

5. The multi-station FCT testing device according to claim 3, characterized in that, The motor is mounted on the bottom of the upper fixed plate, and the motor and the lead screw are driven by a synchronous belt pulley module.

6. The multi-station FCT testing device according to claim 1, characterized in that, The upper conveying assembly and the lower conveying assembly have the same structure. The upper conveying assembly includes a second lifting frame and two second conveyor belts arranged on the second lifting frame. The two second conveyor belts are parallel to each other.

7. A multi-station FCT testing device according to claim 6, characterized in that, The testing assembly includes a support, an upper mold, a lower mold, and a driving component. The support and the lower mold are fixed on the second frame. The lower mold is located between two second conveyor belts. The driving component is mounted on the support. The upper mold is connected to the telescopic end of the driving component and is located directly above the lower mold. A positioning pin is provided on the top of the lower mold, and several test probes are provided on the bottom of the upper mold. The driving component is used to drive the upper mold to move closer to or away from the lower mold.

8. The multi-station FCT testing device according to claim 7, characterized in that, The bracket includes a first mounting plate and four second sliding rods. The second sliding rods are vertically arranged and their tops are connected to the first mounting plate. The driving component is mounted on the first mounting plate, and the telescopic end of the driving component is connected to the second mounting plate. The upper mold is mounted on the bottom of the second mounting plate. The second mounting plate is provided with four second sliding sleeves, which are slidably engaged with the four second sliding rods respectively.

9. A multi-station FCT testing device according to claim 8, characterized in that, The second lifting frame is provided with four third sliding sleeves, and the four third sliding sleeves are respectively slidably engaged with the four second sliding rods.

10. A multi-station FCT testing device according to claim 9, characterized in that, The second lifting assembly includes two lifting cylinders, which are mounted on the second frame, and the telescopic ends of the lifting cylinders are connected to the second lifting frame.

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