An automatic transfer device suitable for switching between multiple vehicle types

Abstract

The present invention provides an automatic transfer device suitable for switching between multiple vehicle models, comprising two relatively arranged frame assemblies, the frame assemblies including a lower bracket, an upper bracket, a connecting rod and a lifting bracket; a driving assembly, the driving assembly including a driving motor and a cam mechanism; a coupling assembly, the coupling assembly including a first universal joint; a vehicle body support assembly, the vehicle body support assembly including a plurality of linear driving mechanisms and a first upper supporting mechanism, a second upper supporting mechanism, a first lower supporting mechanism, a second lower supporting mechanism and a third lower supporting mechanism respectively arranged on the plurality of linear driving mechanisms. The present invention is suitable for switching between different vehicle models and expands the number of mixed-line vehicle models. At the same time, it can also improve the stability of the vehicle body during switching, reduce the design difficulty of the skid support, and facilitate the introduction of vehicle bodies of different vehicle models.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile production, and in particular relates to an automatic transfer device suitable for switching between multiple vehicle models. Background Art

[0002] Today's automobile production lines are no longer limited to the traditional single-model mass production model, but are more of a multi-platform and multi-model mixed-line order production model. This production model poses a challenge to conveying equipment: how to achieve automatic transfer of workpieces between different conveying equipment on the production line? In particular, the multi-platform and multi-model mixed-line makes it impossible to share the bottom support points of the vehicle body, which leads to difficulties in the support design of the conveyor line carriers and transfer equipment.

[0003] When selecting and designing support points for traditional conveyor line carriers and transfer hanging equipment, suitable holes or support surfaces are usually selected on the bottom crossbeams and longitudinal beams of the vehicle body, or the skirt is directly selected to bear the force. The vehicle body support points selected by the conveyor line carriers and transfer hanging equipment must also be avoided and cannot be the same. Mixed production of different models will result in a large number of supports for conveyor line carriers and transfer hanging equipment, which require knocking down or switching actions to avoid interference between supports and vehicle body. This will make support selection difficult when multiple models are produced on mixed lines, and it is necessary to design support knocking down or switching actions to avoid interference between supports and vehicle body. This sometimes restricts the introduction of new models, resulting in many limitations on transfer hanging equipment. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an automatic transfer device suitable for switching between multiple vehicle models. It is suitable for switching between different vehicle models and expands the number of mixed-line vehicle models. At the same time, it can also improve the stability of the vehicle body switching process, reduce the design difficulty of the skid support, and facilitate the introduction of vehicle bodies of different models.

[0005] The invention provides the following technical solutions: an automatic transfer device suitable for switching between multiple vehicle types, comprising:

[0006] Two frame assemblies arranged opposite to each other, the frame assemblies comprising a lower bracket, an upper bracket arranged above the lower bracket, a connecting rod fixedly arranged between the lower bracket and the upper bracket, and a lifting bracket fixedly arranged below the lower bracket;

[0007] a drive assembly mounted on one side of one of the frame assemblies, for driving the two frame assemblies to rise or fall synchronously, the drive assembly comprising a drive motor mounted on one side of the frame assembly and cam mechanisms mounted on the bottoms of the two frame assemblies, one of the cam mechanisms being connected to an output end of the drive motor;

[0008] A coupling assembly is installed between the two cam mechanisms and is used to control the synchronous rotation of the two cam mechanisms. The coupling assembly includes a first universal coupling provided between the two cam mechanisms.

[0009] a vehicle body support assembly mounted on the two frame assemblies, the vehicle body support assembly comprising a plurality of linear drive mechanisms respectively provided on the upper bracket and the lower bracket, and a first upper support mechanism, a second upper support mechanism, a first lower support mechanism, a second lower support mechanism, and a third lower support mechanism respectively provided on the plurality of linear drive mechanisms, the plurality of linear drive mechanisms being used to respectively drive the first upper support mechanism and the second upper support mechanism to move on the upper bracket, and to respectively drive the second lower support mechanism and the third lower support mechanism to move on the lower bracket;

[0010] Among them, the first upper support mechanism includes a first window support rod and a second window support rod connected to the linear drive mechanism, the second upper support mechanism includes a third window support rod and a fourth window support rod connected to the linear drive mechanism, and window support gaps are left between the first window support rod and the second window support rod, and between the third window support rod and the fourth window support rod.

[0011] Compared with the existing technology, the beneficial effects of the present application are: the present application can expand the support selection range of the automatic transfer and hanging device through the vehicle body support component, and at the same time, compared with the traditional transfer and hanging device, it adds the support structure of the window part of the vehicle body, and at the same time, through the double-layer support structure set on the upper bracket and the lower bracket, it can freely choose to switch or combine one or more of the first upper support mechanism, the second upper support mechanism, the first lower support mechanism, the second lower support mechanism, and the third lower support mechanism according to the actual vehicle model, so as to be suitable for switching between different vehicle models and expand the number of mixed-line vehicle models. At the same time, it can also improve the stability of the vehicle body during switching, reduce the design difficulty of the skid support, and facilitate the introduction of vehicle bodies of different models.

[0012] Preferably, auxiliary brackets are fixedly provided on both sides of the lifting bracket, and the auxiliary brackets are fixedly connected to the lower bracket and the connecting rod.

[0013] Preferably, the frame assembly further comprises a vertical pole provided on one side of the lower bracket and a switch sensing plate fixed on the vertical pole, and the switch sensing plates on the two frame assemblies are arranged opposite to each other.

[0014] Preferably, a second universal joint is connected between the driving motor and one of the cam mechanisms, a limiting plate with a U-shaped structure is fixed on the lifting bracket, and a through hole for the second universal joint to pass through is reserved between the limiting plate and the lifting bracket.

[0015] Preferably, a first pulley mechanism and a second pulley mechanism are provided below the lower bracket, the first pulley mechanism is connected to the cam mechanism, and the first universal coupling is connected between the second pulley mechanisms of the two lower brackets.

[0016] Preferably, rolling bearings are connected to both ends of the second pulley mechanism, a bearing seat is connected below the rolling bearing, a first support seat and a second support seat are respectively provided at the bottom of the second pulley mechanism, the bearing seats are respectively fixed on the first support seat and the second support seat, the second support seat is arranged at the end of the first universal joint, a plurality of support plates are provided at the bottom of the first support seat, and the first support seat and the support plates are fixedly connected by a support rod.

[0017] Preferably, guide assemblies are provided on both sides of the frame assembly, and the guide assemblies include a supporting plate, a guide plate fixed on the supporting plate, and a guide wheel slidably arranged on the side wall of the guide plate, and the guide wheel is fixed on the lifting bracket through a guide wheel mounting seat.

[0018] Preferably, the first lower support mechanism includes an extension arm fixed on the lower bracket and a skirt support rod fixed at the end of the extension arm, and the third lower support mechanism includes a skirt support block provided on the linear drive mechanism, and the extension arm is bent so that the skirt support block and the skirt support rod are on the same horizontal plane.

[0019] Preferably, the second lower support mechanism includes a vehicle bottom support rod fixedly mounted on the linear drive mechanism, the vehicle bottom support rod is vertically arranged, and the length of the vehicle bottom support rod is greater than the length of the first window support rod, the second window support rod, the third window support rod, and the fourth window support rod.

[0020] Preferably, the linear drive mechanism includes a linear slide rail fixed on the upper bracket or the lower bracket, a sliding rod sliding on the linear slide rail, and a driving cylinder provided on one side of the linear slide rail, wherein the driving cylinder is used to drive the sliding rod to slide on the linear slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1A three-dimensional diagram of an automatic transfer device suitable for switching between multiple vehicle types provided by an embodiment of the present invention;

[0023] Figure 2 A perspective view of a drive assembly and a frame assembly provided in an embodiment of the present invention;

[0024] Figure 3 A perspective view of a coupling assembly provided in an embodiment of the present invention;

[0025] Figure 4 A perspective view of a vehicle body support assembly provided by an embodiment of the present invention;

[0026] Figure 5 for Figure 2 A magnified view of the structure in Figure 2.

[0027] Description of reference numerals:

[0028]

[0029]

[0030] The present invention will be further described below with reference to the accompanying drawings and their descriptions. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0034] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0035] In one embodiment of the present invention, Figure 1 As shown, an automatic transfer device suitable for switching between multiple vehicle types includes two oppositely arranged frame assemblies 2, a drive assembly 1, a coupling assembly 3, and a vehicle body support assembly 5;

[0036] like Figure 2 As shown, the frame assembly 2 includes a lower bracket 21, an upper bracket 22 provided above the lower bracket 21, a connecting rod 23 fixed between the lower bracket 21 and the upper bracket 22, and a lifting bracket 24 fixed below the lower bracket 21;

[0037] Specifically, the upper bracket 21, the lower bracket 22 and the connecting rod 23 form a frame structure with a hollowed-out middle and four sides for installing the drive assembly 1 and the body support assembly 5. The frame assembly 2 is used to support the main structure of the automatic conversion equipment to improve the stability of the equipment during operation.

[0038] The driving assembly 1 is installed on one side of one of the frame assemblies 2 and is used to drive the two frame assemblies 2 to rise or fall synchronously. The driving assembly 1 includes a driving motor 11 provided on one side of the frame assembly 2 and cam mechanisms 13 provided at the bottom of the two frame assemblies 2, one of the cam mechanisms 13 is connected to the output end of the driving motor 11;

[0039] Specifically, during the automobile processing process, the car body needs to be transferred to another workshop after processing. Therefore, the car body can be placed on a sled, and the sled is transferred to another workshop and driven into the automatic conversion equipment. Then, the driving motor 11 in the driving assembly 1 drives the two frame assemblies 2 to rise, so that the entire car body rises and leaves the sled. Then, the sled in the workshop can be transferred to the bottom of the car body. Then, the driving motor 11 drives the two frame assemblies 2 to descend, so that the car body is placed on the sled in the workshop, thereby completing the transfer of the car body.

[0040] Among them, the cam mechanism 13 is installed below the lifting bracket 24. The rotation of the driving motor 11 can drive the cam mechanism 13 to lift or lower the lifting bracket 24, thereby driving the entire frame assembly 2 to rise or fall, completing the replacement of the slide.

[0041] like Figure 3 As shown, the coupling assembly 3 is installed between the two cam mechanisms 13, and is used to control the synchronous rotation of the two cam mechanisms 13. The coupling assembly 3 includes a first universal coupling 32 provided between the two cam mechanisms 13;

[0042] Specifically, by setting up the coupling assembly 3, the first universal joint 32 can connect the cam mechanisms 13 in the two frame assemblies 2 together, so that one drive motor 11 can drive the two cam mechanisms 13 to rotate synchronously, thereby allowing the two frame assemblies 2 to rise or fall synchronously.

[0043] like Figure 4 As shown, the vehicle body support assembly 5 is installed on the two frame assemblies 2, and the vehicle body support assembly 5 includes a plurality of linear drive mechanisms 51 respectively provided on the upper bracket 22 and the lower bracket 21, and a first upper support mechanism 52, a second upper support mechanism 53, a first lower support mechanism 54, a second lower support mechanism 55, and a third lower support mechanism 56 respectively provided on the plurality of linear drive mechanisms 51. The plurality of linear drive mechanisms 51 are used to respectively drive the first upper support mechanism 52 and the second upper support mechanism 53 to move on the upper bracket 22, and to respectively drive the second lower support mechanism 55 and the third lower support mechanism 56 to move on the lower bracket 21.

[0044] Specifically, the present application sets up several body support components, such as a first upper support mechanism 52, a second upper support mechanism 53, a second lower support mechanism 55, and a third lower support mechanism 56, wherein the first lower support mechanism 54 is fixedly set, the first upper support mechanism 52 and the second upper support mechanism 53 are supported at the position of the window of the body, while the first lower support mechanism 54 and the third lower support mechanism 56 are supported at the position of the skirt of the body, and the second lower support mechanism 55 is supported at the bottom of the body. By setting up several different body support components, when switching the slides for the bodies of different models, the linear drive mechanisms 51 in each body support component can be controlled separately to drive different body support components to extend to complete the support of the body, thereby meeting the automatic switching of different models, while reducing the design difficulty of the slide support and facilitating the introduction of the body.

[0045] The first upper support mechanism 52 includes a first window support rod 521 and a second window support rod 522 connected to the linear drive mechanism 51; the second upper support mechanism 53 includes a third window support rod 531 and a fourth window support rod 532 connected to the linear drive mechanism 51; and window support gaps are left between the first window support rod 521 and the second window support rod 522, and between the third window support rod 531 and the fourth window support rod 532.

[0046] Specifically, since the car body is in an open state at the window position after production is completed, in the actual transfer process, the first upper support mechanism 52 and the second upper support mechanism 53 can be driven to insert into the corresponding window position, and at the same time, the first window support rod 521 and the second window support rod 522 are supported at the window frame position of the car window, and the third window support rod 531 and the fourth window support rod 532 are supported at the window frame position of another car window, so that the window support gap is matched with the window frame, thereby ensuring the stability of the car body during the transfer process, replacing the traditional process of using the bottom support car body to complete the transfer process. The present invention sets a double-layer support structure, that is, a double-layer support mechanism installed on the upper bracket 22 and the lower bracket 21, which can limit the position of the car body on the automatic transfer device and ensure its stability during transfer. At the same time, the linear drive mechanism 51 can notify different support structures to extend to adapt to the transfer of car bodies of different models.

[0047] In this embodiment, auxiliary brackets 26 are fixedly provided on both sides of the lifting bracket 24, and the auxiliary brackets 26 are fixedly connected to the lower bracket 21 and the connecting rod 23;

[0048] Specifically, by adding the auxiliary bracket 26 , the stability of the lower bracket 21 and the lifting bracket 24 can be further improved, thereby preventing the vehicle body from falling when the vehicle body is automatically transferred.

[0049] In this embodiment, the frame assembly 2 further includes a vertical rod 27 provided on one side of the lower bracket 21 and a switch sensing plate 28 fixed on the vertical rod 27. The switch sensing plates 28 on the two frame assemblies 2 are arranged opposite to each other.

[0050] Specifically, the switch sensor plate 28 can read the vehicle body information stored in the tag carrier on the sled, and freely control the vehicle body support component 5 to extend the corresponding support component according to the vehicle body information to meet the transfer requirements of different vehicle models.

[0051] In this embodiment, a second universal joint 12 is connected between the drive motor 11 and one of the cam mechanisms 13. A U-shaped limiting plate 25 is fixed to the lifting bracket 24. A through hole for the second universal joint 12 to pass through is reserved between the limiting plate 25 and the lifting bracket 24.

[0052] Specifically, the second universal joint 12 can be used for transmission of the cam mechanism 13 at different positions. At the same time, the position of the end of the second universal joint 12 can be limited by setting the limit plate 25 to ensure the stability of the cam mechanism 13 and the second universal joint 12 during the transmission process.

[0053] In this embodiment, a first pulley mechanism 14 and a second pulley mechanism 15 are provided below the lower bracket 21. The first pulley mechanism 14 is connected to the cam mechanism 13. The first universal coupling 32 is connected between the second pulley mechanisms 15 of the two lower brackets 21.

[0054] Specifically, by providing the first pulley mechanism 14 and the second pulley mechanism 15 , the transmission efficiency between the two cam mechanisms 13 can be improved, and the transmission under different environments can be adapted, so that the driving motor 11 is more stable when driving the two cam mechanisms 13 to rotate.

[0055] In this embodiment, rolling bearings 33 are connected to both ends of the second pulley mechanism 15, and a bearing seat 34 is connected below the rolling bearing 33. A first support seat 31 and a second support seat 16 are respectively provided at the bottom of the second pulley mechanism 15. The bearing seats 34 are fixed on the first support seat 31 and the second support seat 16, respectively. The second support seat 16 is provided at the end of the first universal joint 32. A plurality of support plates 17 are provided at the bottom of the first support seat 31. The first support seat 31 and the support plates 17 are fixedly connected by support rods 18.

[0056] Specifically, by setting a rolling bearing 33 and a bearing seat 34, the stability of the first universal joint 32 and the second pulley mechanism 15 during the rotation process can be increased. At the same time, the first support seat 31 and the second support seat 16 can play a supporting role to prevent them from contacting the ground, and the support rod 18 and the support plate 17 can improve the bearing capacity of the first support seat 31.

[0057] like Figure 5 As shown, in this embodiment, guide assemblies 4 are provided on both sides of the frame assembly 2. The guide assemblies 4 include a carrier plate 41, a guide plate 43 fixed on the carrier plate 41, and a guide wheel 45 slidably provided on the side wall of the guide plate 43. The guide wheel 45 is fixed to the lifting bracket 24 through a guide wheel mounting seat 44.

[0058] Specifically, the guide plate 43 is fixed on the supporting plate 41 by fastening screws 42. When the frame assembly 2 rises or falls, the corresponding guide wheel 45 rolls on the side wall of the guide plate 43. The cooperation between the guide wheel 45 and the guide plate 43 can limit the moving direction of the frame assembly 2 to avoid dislocation and skewness during the rising and falling process.

[0059] In this embodiment, the first lower support mechanism 54 includes an extension arm 542 fixed to the lower bracket 21 and a skirt support rod 541 fixed to the end of the extension arm 542. The third lower support mechanism 56 includes a skirt support block 561 provided on the linear drive mechanism. The extension arm 542 is bent so that the skirt support block 561 and the skirt support rod 541 are on the same horizontal plane.

[0060] Specifically, the first lower support mechanism 54 is fixed on the lower bracket 21, and it does not have the extension and retraction function, that is, regardless of the vehicle body model, the skirt support rod 541 is supported at the skirt position of the vehicle body to provide basic support effect. At the same time, the skirt support block 561 and the skirt support rod 541 are on the same horizontal plane, so that after the vehicle body support assembly 5 supports the vehicle body, the support of the skirt support block 561 and the skirt support rod 541 makes the entire vehicle body in a horizontal state, avoiding skewness.

[0061] In this embodiment, the second lower support mechanism 55 includes a bottom support rod 551 fixedly mounted on the linear drive mechanism 51. The bottom support rod 551 is vertically arranged, and the length of the bottom support rod 551 is greater than the lengths of the first window support rod 521, the second window support rod 522, the third window support rod 531, and the fourth window support rod 532.

[0062] Specifically, since the second lower support mechanism 55 is supported on the bottom of the vehicle body, and since the entire vehicle body is in a hollow state, and the thickness of the window frame is relatively small, the length of the bottom support rod 551 needs to be greater than the length of the first window support rod 521, the second window support rod 522, the third window support rod 531, and the fourth window support rod 532 to ensure that the bottom support rod 551 can be smoothly supported on the bottom of the vehicle body.

[0063] In this embodiment, the linear drive mechanism 51 includes a linear slide rail 511 fixedly mounted on the upper bracket 22 or the lower bracket 21, a sliding rod 512 slidably mounted on the linear slide rail 511, and a driving cylinder 513 disposed on one side of the linear slide rail 511. The driving cylinder 513 is used to drive the sliding rod 512 to slide on the linear slide rail 511.

[0064] It is worth noting that the first window support rod 521, the second window support rod 522, the third window support rod 531, the fourth window support rod 532, the bottom support rod 551 and the skirt support block 561 in the vehicle body support assembly 5 are all fixedly connected to the sliding rod 512.

[0065] In summary, the automatic transfer device suitable for switching between multiple vehicle models in the above-mentioned embodiment of the present invention can expand the support selection range of the automatic transfer device through the vehicle body support component 5. At the same time, compared with the traditional transfer device, the support structure of the window part of the vehicle body is added. At the same time, through the double-layer support structure set on the upper bracket 22 and the lower bracket 21, it can freely choose to switch or combine one or more of the first upper support mechanism 52, the second upper support mechanism 53, the first lower support mechanism 54, the second lower support mechanism 55, and the third lower support mechanism 56 according to the actual vehicle model, so as to be suitable for switching between different vehicle models and expand the number of mixed-line vehicle models. At the same time, it can also improve the stability of the vehicle body during switching, reduce the design difficulty of the skid support, and facilitate the introduction of vehicle bodies of different models.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic transfer device suitable for switching between multiple vehicle types, characterized in that: include: Two frame assemblies arranged opposite to each other, the frame assemblies comprising a lower bracket, an upper bracket arranged above the lower bracket, a connecting rod fixedly arranged between the lower bracket and the upper bracket, and a lifting bracket fixedly arranged below the lower bracket; a drive assembly mounted on one side of one of the frame assemblies, for driving the two frame assemblies to rise or fall synchronously, the drive assembly comprising a drive motor mounted on one side of the frame assembly and cam mechanisms mounted on the bottoms of the two frame assemblies, one of the cam mechanisms being connected to an output end of the drive motor; A coupling assembly is installed between the two cam mechanisms and is used to control the synchronous rotation of the two cam mechanisms. The coupling assembly includes a first universal coupling provided between the two cam mechanisms. a vehicle body support assembly mounted on the two frame assemblies, the vehicle body support assembly comprising a plurality of linear drive mechanisms respectively provided on the upper bracket and the lower bracket, and a first upper support mechanism, a second upper support mechanism, a first lower support mechanism, a second lower support mechanism, and a third lower support mechanism respectively provided on the plurality of linear drive mechanisms, the plurality of linear drive mechanisms being used to respectively drive the first upper support mechanism and the second upper support mechanism to move on the upper bracket, and to respectively drive the second lower support mechanism and the third lower support mechanism to move on the lower bracket; Among them, the first upper support mechanism includes a first window support rod and a second window support rod connected to the linear drive mechanism, the second upper support mechanism includes a third window support rod and a fourth window support rod connected to the linear drive mechanism, and window support gaps are left between the first window support rod and the second window support rod, and between the third window support rod and the fourth window support rod.

2. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: Auxiliary brackets are fixedly provided on both sides of the lifting bracket, and the auxiliary brackets are fixedly connected to the lower bracket and the connecting rod.

3. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: The frame assembly further includes a vertical pole arranged on one side of the lower bracket and a switch sensing plate fixed on the vertical pole, and the switch sensing plates on the two frame assemblies are arranged opposite to each other.

4. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: A second universal joint is connected between the driving motor and one of the cam mechanisms. A U-shaped limiting plate is fixed on the lifting bracket. A through hole for the second universal joint to pass through is reserved between the limiting plate and the lifting bracket.

5. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: A first pulley mechanism and a second pulley mechanism are provided below the lower bracket. The first pulley mechanism is connected to the cam mechanism. The first universal coupling is connected between the second pulley mechanisms of the two lower brackets.

6. The automatic transfer device suitable for switching between multiple vehicle types according to claim 5 is characterized in that: Both ends of the second pulley mechanism are connected to rolling bearings, and a bearing seat is connected below the rolling bearing. A first support seat and a second support seat are respectively provided at the bottom of the second pulley mechanism, and the bearing seats are respectively fixed on the first support seat and the second support seat. The second support seat is arranged at the end of the first universal joint, and a plurality of support plates are provided at the bottom of the first support seat, and the first support seat and the support plate are fixedly connected by a support rod.

7. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: Guide assemblies are provided on both sides of the frame assembly. The guide assemblies include a load-bearing plate, a guide plate fixed on the load-bearing plate, and a guide wheel slidably arranged on the side wall of the guide plate. The guide wheel is fixed on the lifting bracket through a guide wheel mounting seat.

8. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: The first lower support mechanism includes an extension arm fixed on the lower bracket and a skirt support rod fixed at the end of the extension arm. The third lower support mechanism includes a skirt support block provided on the linear drive mechanism. The extension arm is bent so that the skirt support block and the skirt support rod are on the same horizontal plane.

9. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1 is characterized in that: The second lower support mechanism includes a vehicle bottom support rod fixed on the linear drive mechanism, the vehicle bottom support rod is vertically arranged, and the length of the vehicle bottom support rod is greater than the length of the first window support rod, the second window support rod, the third window support rod, and the fourth window support rod.

10. The automatic transfer device suitable for switching between multiple vehicle types according to claim 1, characterized in that: The linear drive mechanism includes a linear slide rail fixed on the upper bracket or the lower bracket, a sliding rod sliding on the linear slide rail, and a driving cylinder provided on one side of the linear slide rail, wherein the driving cylinder is used to drive the sliding rod to slide on the linear slide rail.

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