Product conveying device and product testing system thereof

Abstract

The application belongs to the technical field of product transmission, and discloses a product transmission device and a product testing system thereof. The product transmission device comprises a first magnetic levitation transmission track, a plurality of first magnetic levitation bearing members, and a plurality of first connecting track mechanisms. The first magnetic levitation bearing members are movably arranged on the first magnetic levitation transmission track by using the magnetic levitation technology. The plurality of first connecting track mechanisms are arranged between the first magnetic levitation transmission track and a plurality of testing stations, and correspond to the plurality of testing stations respectively. Each connecting track mechanism can connect or disconnect one magnetic levitation bearing member with one testing station. The product is transmitted between the plurality of magnetic levitation bearing members and the plurality of testing stations through the plurality of connecting track mechanisms.

Description

Technical Field

[0001] This invention relates to the field of product transport technology, and in particular to a product transport device and its product testing system, especially to a product transport device and its product testing system that transports products from a magnetic levitation track to a test station or from a test station to a magnetic levitation track via a track-connecting mechanism. Background Technology

[0002] Electronic products must undergo a series of tests after manufacturing before they can be sold on the market. Current product testing systems use belt conveyors to transport products between testing stations for various tests.

[0003] However, the existing belt conveyor mechanism has a reduced lifespan due to the easy wear of components such as belts or guide wheels. In addition, if a section of the track is abnormal, it will affect the transmission operation of the entire test line. Verification at each test station or the preservation or replacement of components will also affect the transmission operation of the entire test line. Summary of the Invention

[0004] In view of this, the product transmission device and product testing system of the present invention solve the problem of easy wear of various components of the conveyor belt in the prior art by means of magnetic levitation technology. Moreover, the magnetic levitation transmission track is connected or separated from each test station through a connecting track mechanism. Even if a test station cannot operate due to verification, maintenance or component replacement, it will not affect the transmission operation of the entire product testing system, thus solving the problem of the prior art.

[0005] An embodiment of the product transport device of the present invention includes a first magnetic levitation transport track, a plurality of first magnetic levitation carriers, and a plurality of first connecting track mechanisms. The first magnetic levitation carriers are movably mounted on the first magnetic levitation transport track using magnetic levitation technology. The plurality of first connecting track mechanisms are disposed between the first magnetic levitation transport track and a plurality of test stations, and each corresponds to one of the test stations. Each connecting track mechanism can connect or disconnect one of the magnetic levitation carriers from one of the test stations. Products are transported between the plurality of magnetic levitation carriers and the plurality of test stations via the plurality of first connecting track mechanisms.

[0006] Optionally, the first magnetic levitation carrier includes a first conveying module, and the first connecting track mechanism includes a second conveying module and a first transmission module. The first transmission module connects the first conveying module and the second conveying module, so that the product is conveyed from the first conveying module to the test station via the second conveying module.

[0007] Optionally, the first conveying module includes a first rotating shaft and a first gear, the first gear being coupled to the first rotating shaft; the first transmission module includes a second rotating shaft and a first connecting gear set, the second rotating shaft being coupled to the second conveying module, the first connecting gear set including a second gear and an odd number of third gears, the second gear being coupled to the second rotating shaft, and the third gears being configured to be movably coupled to or disengaged from the first gear and the second gear.

[0008] Optionally, the first conveying module further includes a first conveyor wheel and a first conveyor belt, the first conveyor wheel being coupled to the first conveyor belt and the first conveyor wheel being coupled to the first rotating shaft; the second conveying module further includes a second conveyor wheel and a second conveyor belt, the second conveyor wheel being coupled to the second conveyor belt and the second conveyor wheel being coupled to the second rotating shaft, the first conveyor belt being aligned with the second conveyor belt.

[0009] Optionally, the first connecting track mechanism may further include a first driving member that drives the second rotating shaft to rotate.

[0010] Optionally, it also includes:

[0011] Second magnetic levitation transport track;

[0012] Multiple second magnetic levitation carriers are movably mounted on the second magnetic levitation transmission track using magnetic levitation technology;

[0013] A lifting mechanism is used to move the product between the first magnetic levitation transport track and the second magnetic levitation transport track; and

[0014] Multiple lifting platforms are connected to a track mechanism and are movably mounted on the lifting mechanism. The lifting mechanism can be connected to the first magnetic levitation support or to the second magnetic levitation support, so that the product can be transported between the first magnetic levitation support and the lifting mechanism or between the lifting mechanism and the second magnetic levitation support.

[0015] Optionally, the lifting mechanism connecting the track includes a track mechanism body, a third conveying module, and a second transmission module. The track mechanism body is movably disposed on the lifting mechanism. The third conveying module and the second transmission module are disposed on the track mechanism body, and the second transmission module is connected to the third conveying module. The second magnetic levitation support includes a fourth conveying module. The movement of the track mechanism body causes the second transmission module to move, thereby connecting or disconnecting the third conveying module from the first conveying module or the fourth conveying module.

[0016] Optionally, the third conveying module includes a third rotating shaft and a fourth gear, the fourth gear being engaged with the third rotating shaft; the second transmission module includes a second connecting gear set, the second connecting gear set including an odd number of fifth gears; the third rotating shaft is disposed on the track mechanism body; the fifth gear meshes with the fourth gear; the third conveying module includes a third conveying wheel and a third conveyor belt, the third conveying wheel being engaged with the third conveyor belt and the third rotating shaft; the fourth conveying module includes a fourth conveying wheel, a fourth conveyor belt, a fourth rotating shaft, and a sixth gear, the fourth conveying wheel being engaged with the fourth conveyor belt and the fourth rotating shaft, and the sixth gear being engaged with the fourth rotating shaft; the third conveyor belt is aligned with the fourth conveyor belt; the fifth gear moves and meshes with the sixth gear.

[0017] Optionally, it also includes a return transport track and a lifting track. The lifting mechanism allows the product to move between the first magnetic levitation transport track and the return transport track and / or between the second magnetic levitation transport track and the return transport track. The lifting track is disposed on the return transport track and can move in a direction perpendicular to the return transport track. The lifting mechanism connects the track to the lifting track to transport the product, and the movement of the lifting track causes the product to fall onto the return transport track.

[0018] An embodiment of the product testing system of the present invention includes the product transport device and a plurality of test stations. Multiple products are transported by the product transport device to multiple test stations for testing.

[0019] The product transport device of the present invention uses magnetic levitation technology to support the magnetic levitation carrier between the magnetic levitation track and the magnetic levitation carrier, and enables the magnetic levitation carrier to move along the magnetic levitation track. The magnetic levitation carrier carries the product on the magnetic levitation track for transport, reducing frictional contact between components and extending the service life of each component, thereby increasing the service life of the product transport device. Moreover, the magnetic levitation product transport device has the advantages of fast transmission speed, small space occupation, high software control flexibility, and convenient maintenance.

[0020] In addition, the magnetic levitation track and the test station are connected by a track mechanism for bidirectional transmission of products. Therefore, even if one of the test stations fails, or when testing or verification is being carried out, it will not affect the operation of the overall product testing system. It also has the advantages of being able to quickly switch the model of the product being tested and having strong test line expandability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure between the magnetic levitation track of the product transport device and multiple test stations in an embodiment of the product testing system of the present invention.

[0022] Figure 2 This is a perspective view of the structure of the magnetic levitation track and the return transmission track according to an embodiment of the product transmission device of the present invention;

[0023] Figure 3 This is a perspective view of an embodiment of the structure of the magnetic levitation carrier and the connecting track mechanism of the product transmission device of the present invention, wherein the magnetic levitation carrier and the connecting track mechanism are in a separate state;

[0024] Figure 4 yes Figure 3 A three-dimensional diagram showing the connection state between the magnetic levitation support component and the structure connecting the track mechanism;

[0025] Figure 5 yes Figure 4 An enlarged view of part A;

[0026] Figure 6 This is a perspective view of another embodiment of the structure of the magnetic levitation carrier and the connecting track mechanism of the product transmission device of the present invention, wherein the magnetic levitation carrier and the connecting track mechanism are in a connected state;

[0027] Figure 7 This is a perspective view of an embodiment of the structure of the magnetic levitation carrier and the lifting mechanism of the product transmission device of the present invention, wherein the magnetic levitation carrier and the lifting mechanism are in a separate state;

[0028] Figure 8 yes Figure 7 A three-dimensional diagram showing the connection between the magnetic levitation load-bearing component and the lifting mechanism of the product transmission device;

[0029] Figure 9 yes Figure 8 An enlarged view of part B;

[0030] Figure 10 This is a perspective view of an embodiment of the structure of the return transport track and the lifting mechanism of the product transport device of the present invention.

[0031] In the picture:

[0032] 1-Product transfer device; 2-First test station; 3-Second test station;

[0033] 10-First magnetic levitation transmission track; 20-First magnetic levitation carrier; 30-First connecting track mechanism; 40-Second magnetic levitation transmission track; 50-Second magnetic levitation carrier; 70-Return transmission track; 80-Lifting mechanism; 90-Lifting track; T-Product carrier;

[0034] 21-First carrier body; 22-First conveying module; 211-Carrier frame; 221-First rotating shaft; 222-First gear; 223-First conveyor wheel; 224-First conveyor belt;

[0035] 31-Mechanism body; 32-Second conveying module; 33-First transmission module; 34-First driving component; 321-Second conveying wheel; 322-Second conveyor belt; 331-Second rotating shaft; 332-First connecting gear set; 3321-Second gear; 3322-Third gear;

[0036] 51-Second carrier body; 52-Fourth conveyor module; 521-Fourth conveyor wheel; 522-Fourth conveyor belt; 523-Fourth rotating shaft; 524-Sixth gear;

[0037] 81-Lifting mechanism body; 82-Lifting machine connecting rail mechanism; 821-Rail mechanism body; 822-Third conveying module; 823-Second transmission module; 824-Second driving component; 8221-Third rotating shaft; 8222-Fourth gear; 8223-Third conveying wheel; 8224-Third conveyor belt; 8231-Second connecting gear set; 8232-Fifth gear. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Please see Figure 1 and Figure 2 This illustrates an embodiment of the product testing system of the present invention. The product testing system of this embodiment includes a product transport device 1, a plurality of first test stations 2, and a plurality of second test stations 3.

[0042] The product transport device 1 in this embodiment includes a first magnetic levitation transport track 10, a plurality of first magnetic levitation carriers 20, and a plurality of first connecting track mechanisms 30 (see [link]). Figure 3 The product transport device 1 of this embodiment further includes a second magnetic levitation transport track 40, a plurality of second magnetic levitation carriers 50, and a plurality of second connecting track mechanisms. The product transport device 1 of this embodiment further includes a plurality of first test stations 2 disposed on both sides of the first magnetic levitation transport track 10, and a plurality of second test stations 3 disposed on both sides of the second magnetic levitation transport track 40. The first magnetic levitation transport track 10 is provided with the stator of the magnetic levitation assembly, and the first magnetic levitation carriers 20 are provided with the movers of the magnetic levitation assembly, thereby enabling the first magnetic levitation carriers 20 to move along the first magnetic levitation transport track 10. Similarly, the second magnetic levitation transport track 40 is provided with the stator of the magnetic levitation assembly, and the second magnetic levitation carriers 50 are provided with the movers of the magnetic levitation assembly, thereby enabling the second magnetic levitation carriers 50 to move along the second magnetic levitation transport track 40.

[0043] The first magnetic levitation transmission track 10 and the second magnetic levitation transmission track 40 have different heights, with the first magnetic levitation transmission track 10 located below the second magnetic levitation transmission track 40. The product moves horizontally on both the first magnetic levitation transmission track 10 and the second magnetic levitation transmission track 40. In this embodiment, the first magnetic levitation transmission track 10 and the second magnetic levitation transmission track 40 are arranged parallel to each other.

[0044] The product transfer device 1 in this embodiment also includes a return transfer track 70, which is disposed above the second magnetic levitation transfer track 40 for product return.

[0045] The product transfer device 1 in this embodiment also includes a lifting mechanism 80, which is disposed between the first magnetic levitation transfer track 10 and the second magnetic levitation transfer track 40 and between the second magnetic levitation transfer track 40 and the return transfer track 70. The lifting mechanism 80 allows the product to move in the vertical direction, thereby enabling the product to be transferred between the first magnetic levitation transfer track 10 and the second magnetic levitation transfer track 40 or between the second magnetic levitation transfer track 40 and the return transfer track 70.

[0046] Please see Figure 3 , Figure 4 and Figure 5 See also Figure 1 and Figure 2 This indicates that the product carrier (product omitted, not shown) T is transported from the first magnetic levitation support 20 located on the first magnetic levitation transport track 10 to the first test station 2 via the first connecting track mechanism 30, or the product carrier T is transported from the second magnetic levitation support 50 located on the second magnetic levitation transport track 40 to the second test station 3 via the second connecting track mechanism. In this embodiment, the structure between the first connecting track mechanism 30 and the first magnetic levitation transport track 10, and the structure between the second connecting track mechanism and the second magnetic levitation transport track 40, are the same. Figures 3 to 5 This only indicates the structure between the first connecting track mechanism 30 and the first magnetic levitation transmission track 10.

[0047] The first magnetic levitation carrier 20 includes a first carrier body 21 and a first conveying module 22. The first carrier body 21 houses the mover of the magnetic levitation assembly and includes two opposing carrier frames 211. The first conveying module 22 is disposed on the carrier frames 211. The first connecting track mechanism 30 includes a mechanism body 31, a second conveying module 32, and a first transmission module 33. The second conveying module 32 and the first transmission module 33 are disposed on the mechanism body 31. The first transmission module 33 connects the first conveying module 22 and the second conveying module 32, allowing products to be conveyed from the first conveying module 22 to multiple first test stations 2 via the second conveying module 32.

[0048] The first conveying module 22 includes a first rotating shaft 221, a first gear 222, a first conveying wheel 223, and a first conveyor belt 224. The first conveying wheel 223 and the first conveyor belt 224 are disposed on two opposing support frames 211. The two first conveyor belts 224 are used to support and move the product tray T on both sides. The first gear 222 is also disposed on the support frame 211 and is located on both sides of the support frame 211, respectively, along with the first conveying wheel 223. The first conveying wheel 223 and the first gear 222 are both connected to the first rotating shaft 221, and the first conveying wheel 223 is connected to the first conveyor belt 224. In this embodiment, the first conveying wheel 223 is a sprocket, and the first conveyor belt 224 is a chain.

[0049] The first transmission module 33 includes a second rotating shaft 331 and a first connecting gear set 332. The second rotating shaft 331 is connected to the second conveying module 32. The first connecting gear set 332 includes a second gear 3321 and an odd number of third gears 3322. The second gear 3321 is connected to the second rotating shaft 331, and the third gears 3322 are configured to be movable so that the first gear 222 can engage or disengage with the second gear 3321. In this embodiment, there are three third gears 3322, and the odd number of third gears 3322 mesh with the first gear 222 and the second gear 3321, enabling the first gear 222 and the second gear 3321 to rotate in the same direction.

[0050] The second conveying module 32 further includes a second conveying wheel 321 and a second conveying belt 322. The second conveying wheel 321 is coupled to the second conveying belt 322. The second conveying wheel 321 and the second gear 3321 are located on opposite sides of the mechanism body 31, and the second conveying wheel 321 is coupled to the second rotating shaft 331. The first conveying belt 224 is aligned with the second conveying belt 322. In this embodiment, the second conveying wheel 321 is a sprocket, and the second conveying belt 322 is a chain.

[0051] like Figure 4 and Figure 5 As shown, the first magnetic levitation support 20 moves on the first magnetic levitation transmission track 10 to a position aligned with the first connecting track mechanism 30. At this time, the first gear 222 aligns with the second gear 3321. The cylinder causes the first connecting gear set 332 to move vertically, so that the third gear 3322 simultaneously meshes with both the first gear 222 and the second gear 3321. The first connecting track mechanism 30 also includes a first driving member 34, which drives the second rotating shaft 331 to rotate. In this embodiment, the first driving member 34 is a servo motor, which drives the second conveyor belt 322 to move via a drive sprocket and causes the second conveyor wheel 321 to rotate, thereby driving the second rotating shaft 331 to rotate. Then, the second gear 3321 rotates synchronously with the second rotating shaft 331. The third gear 3322 meshes with the first gear 222 and the second gear 3321, causing the first gear 222 and the second gear 3321 to rotate synchronously and in the same direction. This causes the first conveyor belt 224 and the second conveyor belt 322 to rotate in the same direction, conveying the product carrier T from the first magnetic levitation support 20 to the first connecting track mechanism 30, and then via the first connecting track mechanism 30 to the first test station 2. The product that has completed testing is returned from the first test station 2 to the first magnetic levitation support 20 via the first connecting track mechanism 30 by the first driving member 34 rotating in the opposite direction.

[0052] Please see Figure 6This illustrates another embodiment of the structure of the magnetic levitation support member and the connecting track mechanism of the product transmission device 1 of the present invention. This embodiment has some of the same structure as the previous embodiment, therefore, the same elements are represented by the same symbols and their descriptions are omitted. The difference between this embodiment and the previous embodiment is that the first gear 222, the second gear 3321, and the third gear 3322 are located in the middle of the edge of the first support member body 21 and the middle of the edge of the mechanism body 31. The first rotating shaft 221 passes through the two support frames 211 of the first support member body 21, and the second rotating shaft 331 also passes through the two support frames 211 of the mechanism body 31.

[0053] Please see Figure 7 , Figure 8 and Figure 9 The lifting mechanism 80 includes a lifting mechanism body 81 and a lifting platform connecting rail mechanism 82. The lifting platform connecting rail mechanism 82 is movably disposed on the lifting mechanism body 81 and can connect the lifting mechanism 80 to the first magnetic levitation support 20 or to the second magnetic levitation support 50, so that the product can be transferred between the first magnetic levitation support 20 and the lifting mechanism 80 or between the lifting mechanism 80 and the second magnetic levitation support 50.

[0054] The lifting mechanism 82 includes a track mechanism body 821, a third conveying module 822, and a second transmission module 823. The track mechanism body 821 is movably mounted on the lifting mechanism body 81 and moves horizontally by means of a cylinder or motor. The third conveying module 822 and the second transmission module 823 are mounted on the lifting mechanism body 81, with the second transmission module 823 connected to the third conveying module 822. The second magnetic levitation support 50 includes a second support body 51 and a fourth conveying module 52. Movement of the track mechanism body 821 causes movement of the second transmission module 823, thereby connecting or disconnecting the third conveying module 822 from the first conveying module 22 or the fourth conveying module 52.

[0055] The third conveying module 822 includes a third rotating shaft 8221, a fourth gear 8222, a third conveying wheel 8223, and a third conveyor belt 8224. The fourth gear 8222 is coupled to the third rotating shaft 8221, and the third conveying wheel 8223 is coupled to the third conveyor belt 8224, and the third conveying wheel 8223 is also coupled to the third rotating shaft 8221. The second transmission module 823 includes a second connecting gear set 8231, which includes an odd number of fifth gears 8232. In this embodiment, the second connecting gear set 8231 includes one fifth gear 8232. The third rotating shaft 8221 is disposed on the track mechanism body 821, and in this embodiment, the fifth gear 8232 is meshed with the fourth gear 8222. The fourth conveying module 52 includes a fourth conveying wheel 521, a fourth conveying belt 522, a fourth rotating shaft 523, and a sixth gear 524. The fourth conveying wheel 521 is coupled to the fourth conveying belt 522, and both the fourth conveying wheel 521 and the sixth gear 524 are coupled to the fourth rotating shaft 523. The fifth gear 8232 can be moved and engaged with the sixth gear 524 by means of the moving track mechanism body 821. In this embodiment, the third conveying wheel 8223 is a sprocket, the third conveying belt 8224 is a chain, the fourth conveying wheel 521 is a sprocket, and the fourth conveying belt 522 is a chain.

[0056] like Figure 7 As shown, the lifting mechanism body 81 moves between the first magnetic levitation transmission track 10 and the second magnetic levitation transmission track 40, aligning with the first magnetic levitation support 20 or the second magnetic levitation support 50. At this time, the moving track mechanism body 821 moves, causing the second transmission module 823 to move, ultimately causing the fifth gear 8232 to mesh with the first gear 222 of the first magnetic levitation support 20 or the sixth gear 524 of the second magnetic levitation support 50. The lifting mechanism connecting track 82 also includes a second drive member 824. The second drive member 824 drives the third shaft 8221 to rotate by moving the third conveyor wheel 8223, causing the fourth gear 8222, the fifth gear 8232, and the sixth gear 524 to rotate synchronously, and also causing the fourth shaft 523 to rotate. This allows the third conveyor wheel 8223 to move synchronously and in the same direction as the fourth conveyor belt 522 or the first conveyor belt 224, moving the product tray T from the first magnetic levitation support 20 to the lifting mechanism 80, or from the lifting mechanism 80 to the second magnetic levitation support 50. In this embodiment, the second driving component 824 is a servo motor.

[0057] Please see Figure 10This describes the structure where the lifting mechanism 80 is connected to the return transport track 70. The lifting mechanism 80 rises from the second magnetic levitation transport track 40 to the return transport track 70. The lifting mechanism connecting the track 82 operates as described above, moving and transporting the product tray T to the return transport track 70. The product transport device 1 also includes a lifting track 90. ​​The lifting track 90 is disposed within the return transport track 70 and parallel to the return transport track 70. The lifting track 90 can move in a direction perpendicular to the return transport track 70. The lifting track 90 first rises to a position higher than the return transport track 70. Then, the lifting mechanism 80 raises the product tray T to a position aligned with the lifting track 90. ​​Next, the lifting mechanism connecting the track 82 operates to transfer the product tray T from the lifting mechanism 80 to the lifting track 90. ​​Finally, the lifting track 90 descends, causing the product tray T to fall onto the return transport track 70 and then return via the return transport track 70.

[0058] The product transport device 1 of the present invention uses magnetic levitation technology to support the magnetic levitation carrier between the magnetic levitation track and the magnetic levitation carrier, and enables the magnetic levitation carrier to move along the magnetic levitation track. The magnetic levitation carrier carries the product on the magnetic levitation track for transport, reducing frictional contact between components and extending the service life of each component, thereby increasing the service life of the product transport device 1. Moreover, the magnetic levitation product transport device 1 has the advantages of fast transmission speed, small space occupation, high software control flexibility, and convenient maintenance.

[0059] In addition, the magnetic levitation track and the test station are connected by a track mechanism for bidirectional transmission of products. Therefore, even if one of the test stations fails, or when testing or verification is being carried out, it will not affect the operation of the overall product testing system. It also has the advantages of being able to quickly switch the model of the product being tested and having strong test line expandability.

[0060] The detailed description of the preferred embodiments above is intended to provide a clearer picture of the invention, and is not intended to limit the scope of the invention to the preferred embodiments disclosed herein. Rather, the aim is to cover various modifications and equivalent arrangements within the scope of the patent claims made by this invention.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A product conveying device for conveying products, characterized in that, The product transfer device includes: First magnetic levitation transmission track; Multiple first magnetic levitation carriers are movably mounted on the first magnetic levitation transmission track using magnetic levitation technology; and Multiple first connecting track mechanisms are disposed between the first magnetic levitation transmission track and multiple test stations, and each corresponds to one of the multiple test stations. Each first connecting track mechanism can connect or disconnect one of the first magnetic levitation carriers from one of the test stations. The product is transported between multiple first magnetic levitation carriers and multiple test stations via multiple first connecting track mechanisms; The product transfer device further includes: Second magnetic levitation transport track; Multiple second magnetic levitation carriers are movably mounted on the second magnetic levitation transmission track using magnetic levitation technology; A lifting mechanism is used to move the product between the first magnetic levitation transport track and the second magnetic levitation transport track; and Multiple lifting platforms are connected to a track mechanism and are movably mounted on the lifting mechanism. The lifting mechanism can be connected to the first magnetic levitation support or to the second magnetic levitation support, so that the product can be transported between the first magnetic levitation support and the lifting mechanism or between the lifting mechanism and the second magnetic levitation support. The product transfer device further includes a return transfer track and a lifting track. The lifting mechanism allows the product to move between the first magnetic levitation transfer track and the return transfer track and / or between the second magnetic levitation transfer track and the return transfer track. The lifting track is disposed on the return transfer track and can move in a direction perpendicular to the return transfer track. The lifting mechanism connects the track to the lifting track to transfer the product to the lifting track, and the movement of the lifting track causes the product to fall onto the return transfer track.

2. The product conveying device according to claim 1, characterized in that, The first magnetic levitation carrier includes a first conveying module, and the first connecting track mechanism includes a second conveying module and a first transmission module. The first transmission module connects the first conveying module and the second conveying module, so that the product is conveyed from the first conveying module to the test station via the second conveying module.

3. The product conveying device according to claim 2, characterized in that, The first conveying module includes a first rotating shaft and a first gear, the first gear being coupled to the first rotating shaft; the first transmission module includes a second rotating shaft and a first connecting gear set, the second rotating shaft being coupled to the second conveying module, the first connecting gear set including a second gear and an odd number of third gears, the second gear being coupled to the second rotating shaft, the third gears being configured to movably engage or disengage the first gear from the second gear.

4. The product conveying device according to claim 3, characterized in that, The first conveying module further includes a first conveyor wheel and a first conveyor belt, the first conveyor wheel being coupled to the first conveyor belt and the first conveyor wheel being coupled to the first rotating shaft; the second conveying module further includes a second conveyor wheel and a second conveyor belt, the second conveyor wheel being coupled to the second conveyor belt and the second conveyor wheel being coupled to the second rotating shaft, the first conveyor belt being aligned with the second conveyor belt.

5. The product conveying device according to claim 3, characterized in that, The first connecting track mechanism further includes a first driving member, which drives the second rotating shaft to rotate.

6. The product conveying device according to claim 1, characterized in that, The lifting mechanism connecting the track includes a track mechanism body, a third conveying module, and a second transmission module. The track mechanism body is movably disposed on the lifting mechanism. The third conveying module and the second transmission module are disposed on the track mechanism body, and the second transmission module is connected to the third conveying module. The second magnetic levitation support includes a fourth conveying module. The movement of the track mechanism body causes the second transmission module to move, thereby connecting or disconnecting the third conveying module from the first conveying module or the fourth conveying module.

7. The product conveying device according to claim 6, characterized in that, The third conveying module includes a third rotating shaft and a fourth gear, the fourth gear being engaged with the third rotating shaft. The second transmission module includes a second connecting gear set, the second connecting gear set including an odd number of fifth gears. The third rotating shaft is disposed on the track mechanism body, and the fifth gear meshes with the fourth gear. The third conveying module includes a third conveying wheel and a third conveyor belt, the third conveying wheel being engaged with the third conveyor belt and the third rotating shaft. The fourth conveying module includes a fourth conveying wheel, a fourth conveyor belt, a fourth rotating shaft, and a sixth gear, the fourth conveying wheel being engaged with the fourth conveyor belt and the fourth rotating shaft, and the sixth gear being engaged with the fourth rotating shaft. The third conveyor belt is aligned with the fourth conveyor belt. The fifth gear moves and meshes with the sixth gear.

8. A product testing system, characterized in that, include: The product transfer device as described in any one of claims 1 to 7; and Multiple test stations; Multiple products are transported by the product transmission device to the test station for testing.

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