Electric turnover system and turnover method for circular shaft axle

Abstract

The invention discloses an electric overturning system and method for a circular shaft axle. The electric overturning system comprises a system frame erected above a conveying line of the axle. The axle lifting mechanism is used for lifting the axle; the turnover assembly is connected to the system frame, can move in a reciprocating mode in the conveying direction of the axle and is used for enabling an axle shaft of the axle to rotate around the axis of the axle shaft, and the anti-rotation tool is matched with the turnover assembly, detachably fixed to the axle shaft and used for preventing the axle shaft from rotating in the turnover assembly. The overturning assembly comprises a clamping groove base capable of being matched with the axle shaft in a clamped mode and a rotation driving mechanism used for driving the clamping groove base to rotate around the axis of the clamping groove base. The electric overturning system is erected above an axle conveying line, the overturning assembly can be driven by the overturning assembly moving driving mechanism and the moving guiding mechanism to move in a reciprocating mode in the axle conveying direction, seamless connection with an assembly line can be achieved, the overturning procedure is integrated into the continuous production process of axle assembly, and the production efficiency is improved. And full-process automatic operation from part assembling to axle forming is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile production line equipment, and particularly refers to an electric overturning system and overturning method for a round shaft axle. BACKGROUND

[0002] In a semi-trailer production and manufacturing system, the round shaft axle, as a core chassis component for bearing the weight of goods and transmitting driving force, directly determines the manufacturing quality and production capacity level of the semi-trailer according to the assembly precision and production efficiency.

[0003] According to the semi-trailer assembly process specification, after the round shaft axle completes the bolt tightening of the guide arm, the guide arm mounting surface is usually in a downward state due to the work station layout and force requirement during the tightening operation, and the subsequent butt joint assembly with the semi-trailer chassis requires the guide arm mounting surface to be upward, so the axle must be adjusted by 180° through an overturning process. This overturning process is a key transitional link connecting the guide arm assembly and the whole vehicle assembly, and its operation mode directly affects the flow continuity and automation level of the whole semi-trailer production line.

[0004] In combination with the existing technology in the current industry, the overturning operation of the semi-trailer round shaft axle generally adopts a fixed-point work station operation mode, which is mainly completed manually by workers. Specifically, a special overturning area is arranged beside the guide arm tightening station, and when the axle completes the tightening, 2-3 workers use simple tools such as crowbars and lifting belts to overturn the round shaft axle with a weight of several hundred kilograms by 180°. This operation mode is the mainstream choice of most small and medium-sized semi-trailer manufacturing enterprises, has low technical threshold and low initial investment cost, and is widely used in scenes with low automation production demand.

[0005] However, with the development of the semi-trailer manufacturing industry towards scale and automation, the defects and limitations of the existing manual overturning technology have become increasingly prominent, which has become a bottleneck problem restricting the upgrading of the production line. First, the manual overturning operation is extremely low in efficiency, and the overturning operation of a single round shaft axle usually takes 3-5 minutes, and the workers are prone to fatigue, which cannot adapt to the continuous production rhythm of modern assembly line, resulting in frequent waiting for materials at the subsequent assembly station, and seriously affecting the beat balance of the whole production line. Secondly, the surface of the round shaft axle is smooth and the weight is unevenly distributed, and the manual overturning process is prone to slipping and rolling over, which not only may cause quality problems such as scratches on the surface of the axle and loosening of the guide arm bolt, but also may cause safety hazards such as injury to the workers, which does not meet the management specifications of safety production.

[0006] More importantly, artificial spot flipping mode is essentially offline operation, which cannot be seamlessly connected with automatic assembly line. At present, most semi-trailer manufacturing enterprises have gradually upgraded the core processes of axle assembly (such as bolt tightening and shaft head assembly) to automation, while the artificial dependence of the flipping process makes the production line form an "automated island", which cannot realize the full-process automation from parts assembly to axle forming, and restricts the improvement of production intelligence level. In addition, artificial flipping requires high physical and experience of the operator, and with the continuous rise of labor cost, the long-term operating cost of this operation mode also continues to increase, further compressing the profit space of enterprises.

[0007] At present, there is a lack of special automatic equipment for semi-trailer axle flipping in the industry, especially in the field of round shaft axles. Due to the difficulty in stable clamping and accurate flipping of the cylindrical structure, the related automatic flipping technology is still in a blank state. Therefore, it has become a technical demand to be urgently broken through in the field of semi-trailer manufacturing equipment to develop an automatic flipping device for semi-trailer round shaft axles that can adapt to the assembly line production, solve the problems of low efficiency, poor safety and inability to integrate the automatic assembly line in the prior art. SUMMARY

[0008] The purpose of the present application is to solve the problems in the background art, and to provide an electric flipping system and method for round shaft axles that can adapt to assembly line production, have high flipping efficiency and good safety.

[0009] To achieve this purpose, the electric flipping system for round shaft axles designed by the present application comprises a system frame erected above the conveying line of the axle; an axle lifting mechanism for lifting the axle; a flipping assembly connected to the system frame, which can move back and forth along the conveying direction of the axle, and is used to rotate the axle shaft of the axle around the axis of the axle shaft; and an anti-rotation tool that cooperates with the flipping assembly, which can be detachably fixed on the axle shaft to prevent the axle shaft from rotating in the flipping assembly; the flipping assembly comprises a clamping groove seat that can be clamped with the axle shaft, and a rotary drive mechanism for driving the clamping groove seat to rotate around the axis of the clamping groove seat.

[0010] Further, the axle lifting mechanism comprises an axle support tool for supporting the left and right sides of the axle, and an axle lifting drive mechanism for driving the axle support tool to lift, the axle lifting drive mechanism comprises an axle lifting drive mechanism housing fixed on a lifting base, and an axle lifting drive connecting piece fixed with the axle support tool and liftable.

[0011] Further, a turnover assembly moving guide mechanism is arranged on the system frame to guide the turnover assembly to move back and forth along the conveying direction of the axle.

[0012] Further, the turnover assembly moving guide mechanism comprises a sliding rail fixed on the system frame along the conveying direction of the axle and a sliding block matched with the sliding rail, and the sliding block is fixed on the turnover assembly.

[0013] Further, the turnover assembly moving drive mechanism comprises a turnover assembly moving drive mechanism housing fixed on the system frame and a turnover assembly moving drive connecting piece fixed on the turnover assembly and movable back and forth along the conveying direction of the axle.

[0014] Further, the turnover assembly comprises a turnover assembly support and the clamping groove seat, the turnover assembly support is arranged with the rotation drive mechanism and connected to the system frame and movable back and forth along the conveying direction of the axle, and the clamping groove seat is internally provided with a long rectangular clamping groove with one side open and the other side extending to the inner side of the clamping groove seat and capable of being matched and positioned with the axle shaft.

[0015] Further, the clamping groove seat is a disc type groove seat structure, the surface of the clamping groove seat is arranged with a chain along the circumferential direction thereof, the rotation drive mechanism comprises a rotation drive motor assembly fixed on the turnover assembly support and a sprocket driven by the rotation drive motor assembly, and the sprocket is connected with the chain.

[0016] Further, the two ends of the circumferential direction of the clamping groove seat are respectively fixed with a number plate, and the turnover assembly support is fixed with a rotation switch corresponding to the number plate.

[0017] Further, the anti-rotation tool comprises an anti-rotation support fixed on the axle shaft through a detachable structure, and the anti-rotation support comprises a circular arc surface matched and positioned with the surface of the axle shaft.

[0018] Further, the anti-rotation tool comprises an anti-rotation support fixed on the axle shaft through a detachable structure, and the anti-rotation support comprises a circular arc surface matched and positioned with the surface of the axle shaft.

[0019] The beneficial effects of the present application are: the electric turnover system designed by the present application is erected above the axle conveying line, the turnover assembly moving drive mechanism and the moving guide mechanism can drive the turnover assembly to move back and forth along the conveying direction of the axle, seamless connection with the assembly line can be realized, the turnover process is integrated into the continuous production process of the axle assembly, the problem of "automation island" caused by the offline operation mode of manual fixed-point turnover is solved, and full-process automatic operation from part assembly to axle forming is realized. Compared with the inefficient operation of manual turnover of a single circular shaft axle, the system drives the clamping groove seat and the axle shaft to rotate through the electrically driven rotary drive mechanism, and cooperates with the coordinated action of the axle lifting mechanism and the turnover assembly, so that the 180° posture adjustment of the axle shaft can be quickly completed, the turnover time is greatly shortened, the waiting condition of the subsequent assembly station is avoided, the beat balance of the whole production line is ensured, and the overall production efficiency is improved. The system stably supports the axle through the axle supporting tool, the clamping groove seat and the anti-rotation tool cooperate to realize the firm clamping and anti-rotation of the axle shaft, avoid the slipping and tilting phenomenon caused by the smooth surface of the axle and the uneven weight distribution during manual turnover, prevent the quality problems such as surface scratching and guide arm bolt loosening, and eliminate the safety hazards of the operating personnel being injured, which meets the safety production management specification. The clamping groove seat adopts a disc-shaped groove seat structure, a rectangular clamping groove is opened to adapt to the clamping of the axle shaft of the circular shaft axle, the rotary drive mechanism drives the clamping groove seat to rotate through the cooperation of the chain wheel and the chain, and the number plate cooperates with the rotary switch to accurately control the turnover angle; the arc surface of the anti-rotation bracket is positioned with the surface of the axle shaft, the detachable structure is convenient for installation and disassembly, the overall structure is designed for the pain points of stable clamping and accurate turnover of the cylindrical structure of the circular shaft axle, and stable clamping and accurate turnover are realized. The system replaces the manual turnover mode of the operating personnel, reduces the requirements for the physical strength and experience of the operating personnel, avoids the operating pressure caused by the rising labor cost, and can effectively compress the consumption of enterprise profit space in the long term. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the disclosed embodiment, the drawings of the embodiment will be briefly introduced below, which are only used for the purpose of illustration, and are not intended to limit the protection scope of the present application.

[0021] Figure 1 A perspective view of the electric turnover system of the circular shaft axle designed by the present application;

[0022] Figure 2 A perspective view of the system frame in the present application;

[0023] Figure 3 A perspective view of the axle lifting mechanism in the present application;

[0024] Figure 4 A perspective view of the turnover assembly moving drive mechanism in the present application;

[0025] Figure 5 Figure 6 is a left view of the movement driving mechanism of the turnover assembly in the present application;

[0026] Figure 6 Figure 7 is a perspective view of the anti-rotation tool installed on the axle shaft in the present application;

[0027] Figure 7 Figure 8 is a front view of the anti-rotation tool in the present application;

[0028] Figure 8 Figure 9 is a perspective view of the turnover assembly in the present application;

[0029] Figure 9 Figure 10 is a front view of the turnover assembly in the present application;

[0030] Figure 10 Figure 11 is a front view of the initial position of the electric turnover system in the present application;

[0031] Figure 11 Figure 12 is a front view of the electric turnover system moving towards the axle and the axle rising in the present application;

[0032] Figure 12 Figure 13 is a front view of the electric turnover system turning over the axle shaft in the present application;

[0033] Figure 13 Figure 14 is a front view of the electric turnover system after turning over the axle shaft in the present application;

[0034] Figure 14 Figure 15 is a front view of the electric turnover system after turning over the axle shaft and lowering the axle in the present application;

[0035] Figure 15 Figure 16 is a front view of the electric turnover system after turning over the axle shaft and moving away from the axle shaft in the present application;

[0036] Figure 16 Figure 17 is a front view of the electric turnover system after turning over the axle shaft and returning to the initial position in the present application;

[0037] Figure 17 Figure 18 is a front view of the electric turnover system turning over and resetting in the initial position in the present application;

[0038] Wherein, 1 - axle, 2 - system frame (2.1 - column, 2.2 - beam, 2.3 - spacer), 3 - axle lifting mechanism (3.1 - axle support tooling, 3.2 - axle lifting drive mechanism), 4 - turnover assembly (4.1 - clamping groove seat, 4.2 - turnover assembly support), 5 - anti-rotation tooling (5.1 - anti-rotation bracket, 5.2 - pin shaft), 6 - rotary drive mechanism (6.1 - rotary drive motor assembly), 7 - axle shaft, 8 - lifting base, 9 - axle lifting drive mechanism housing, 10 - axle lifting drive connecting piece, 11 - slide rail, 12 - slide block, 13 - turnover assembly moving drive mechanism housing, 14 - turnover assembly moving drive connecting piece, 15 - rectangular clamping groove, 16 - chain, 17 - number plate, 18 - rotary switch, 19 - circular arc surface, 20 - plane, 21 - slide rail mounting beam, 22 - butterfly nut, 23 - hole support, 24 - guide rod. DETAILED DESCRIPTION

[0039] The technical solutions of the present application (including the preferred technical solutions) will be further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] Embodiment 1

[0041] As shown in Fig. 9, the present application provides an embodiment of an electric turnover system for a round shaft axle: Figure 1

[0042] As shown in Fig. 9, the present application provides an embodiment of an electric turnover system for a round shaft axle: Figure 1 The electric turnover system for a round shaft axle includes a system frame 2 erected above the conveying line of the axle 1; an axle lifting mechanism 3 for lifting the axle 1; a turnover assembly 4 connected to the system frame 2, movable along the conveying direction of the axle 1, for rotating the axle shaft 7 of the axle 1 about the axis of the axle shaft 7; and an anti-rotation tooling 5 cooperating with the turnover assembly 4, detachably fixed on the axle shaft 1, for preventing the axle shaft 1 from rotating in the turnover assembly 4 (as shown in Fig. 7). Figure 6

[0043] Specifically, in some embodiments, the structure of each component is as follows:​​

[0044] like Figure 2 As shown, the system frame 2 includes columns 2.1, beams 2.2 and shims 2.3. The height of the beams 2.2 can be adjusted by setting the shims 2.3.

[0045] like Figure 3 As shown, the axle lifting mechanism 3 includes an axle support fixture 3.1 for supporting the left and right sides of the axle 1 and an axle lifting drive mechanism 3.2 for driving the axle support fixture 3.1 to lift. The axle lifting drive mechanism 3.2 includes a cylinder or hydraulic cylinder fixed to the lifting base 8 (the lifting base 8 is fixed to the ground). The cylinder or hydraulic cylinder includes a housing (axle lifting drive mechanism housing 9) and a piston rod (axle lifting drive connector 10) fixed to the axle support fixture 3.1 and capable of being lifted. In addition, the lifting base 8 and the axle support fixture 3.1 can also be guided to lift by a guide rod 24 (the guide rod 24 is fixed to the bottom of the axle support fixture 3.1, and a corresponding guide rod through hole is opened on the top of the lifting base 8).

[0046] like Figure 8 As shown in Figure 9, the flipping assembly 4 includes a slot seat 4.1 that can be engaged with the axle shaft 7 and a flipping assembly support 4.2. The slot seat 4.1 is a disc-shaped slot structure. A chain 16 is arranged on the surface of the slot seat 4.1 along its circumferential direction. A rectangular slot 15 is opened inside the slot seat 4.1, which is open on one side and extends into the slot seat 4.1 on the other side, and can be engaged and positioned with the axle shaft 7. A rotary drive mechanism 6 is provided on the flipping assembly support 4.2 for driving the slot seat 4.1 to rotate around the axis of the slot seat 4.1. A digitizing plate 17 is fixed at each end of the circumference of the slot seat 4.1. A rotary switch 18 corresponding to the digitizing plate 17 is fixed on the flipping assembly support 4.2. The rotation of the slot seat 4.1 is limited by the cooperation of the rotary switch 18 and the digitizing plate 17, ensuring that the rotation angle of the slot seat 4.1 is precisely controllable. The rotary drive mechanism 6 includes a rotary drive motor assembly 6.1 fixed to the tilting assembly support 4.2 and a sprocket (not shown) driven by the rotary drive motor assembly 6.1, the sprocket being connected to a chain 16. Figure 1 , Figure 4 and Figure 5As shown, the tilting assembly 4 is connected to the system frame 2 and can reciprocate along the conveying direction of the axle 1. The system frame 2 is provided with a tilting assembly moving guide mechanism for guiding the tilting assembly 4 and causing it to reciprocate along the conveying direction of the axle 1, and a tilting assembly moving drive mechanism for driving the tilting assembly 4 to reciprocate along the conveying direction of the axle 1. Specifically, the tilting assembly moving guide mechanism includes a slide rail 11 fixed to the system frame 2 along the conveying direction of the axle 1 and a slider 12 cooperating with the slide rail 11. The slider 12 is fixed to the tilting assembly support 4.2. The tilting assembly moving drive mechanism includes a cylinder or hydraulic cylinder fixed to the system frame 2. In this invention, a double-stroke cylinder is preferred, which includes a cylinder housing (tilting assembly moving drive mechanism housing 13) and a piston rod fixed to the tilting assembly 4 and reciprocating along the conveying direction of the axle 1 (the end of the piston rod is fixed with a connecting bracket fixed to the slot seat 4.1, and the connecting bracket and the piston rod form a tilting assembly moving drive connector 14).

[0047] like Figure 6 As shown in Figure 7, the anti-rotation fixture 5 includes an anti-rotation bracket 5.1 and a pin 5.2 fixed to the bottom surface of the anti-rotation bracket 5.1. The pin 5.2 passes through a perforated bracket 23 fixedly connected to the axle axle 7 and is threaded with a wing nut 22. The anti-rotation bracket 5.1 includes an arc surface 19 that fits and positions against the surface of the axle axle 7 and a top flat surface 20. The arc surface 19 ensures that the anti-rotation bracket 5.1 is positioned in contact with the surface of the axle axle 7. When the retaining seat 4.1 engages and positions the axle axle 7 through the rectangular retaining slot 15, the top flat surface 20 of the anti-rotation bracket 5.1 and the wing nut 22 prevent the axle axle 7 from rotating within the retaining seat 4.1.

[0048] Example 2

[0049] like Figure 10 As shown in Figure 17, based on Embodiment 1, this invention provides an embodiment of a tilting method for an electric tilting system of a round axle vehicle:

[0050] The tilting methods of the electric tilting system for round axle vehicles include:

[0051] like Figure 10 As shown, the anti-rotation bracket 5.1 is fixed to the axle axle 7 by means of pin 5.2 and wing nut 22.

[0052] like Figure 11 As shown in Figure 12, the axle lifting drive mechanism 3.2 of the axle lifting mechanism 3 drives the axle support fixture 3.1 to rise, thereby driving the axle 1 and axle shaft 7 to rise to the position to be flipped. The flipping assembly movement drive mechanism drives the flipping assembly 4. The flipping assembly 4 moves along the conveying direction of the axle 1 through the slide rail 11 and the slider 12, and the axle shaft 7 is engaged in the slot seat 4.1.

[0053] likeFigure 12 As shown in Fig. 13, the rotating drive motor assembly 6.1 drives the chain wheel, the chain wheel drives the chain 16 to turn the slot seat 4.1, the slot seat 4.1 drives the axle 7 to turn, and the anti-rotation bracket 5 ensures that the axle 7 does not rotate in the slot seat 4.1.

[0054] As shown in Fig. 14, the rotating drive motor assembly 6.1 drives the chain wheel, the chain wheel drives the chain 16 to turn the slot seat 4.1, the slot seat 4.1 drives the axle 7 to turn, and the anti-rotation bracket 5 ensures that the axle 7 does not rotate in the slot seat 4.1. Figure 14 As shown in Fig. 15, the turning assembly 4 moves along the conveying direction of the axle 7, the axle 7 exits the slot seat 4.1, and the axle lifting mechanism 3 drives the axle 1 and the axle 7 to drop to the starting height.

[0055] As shown in Fig. 16, the turning assembly 4 moves along the conveying direction of the axle 1 to the starting moving position, and the rotating drive mechanism 6 drives the slot seat 4.1 to turn to the starting position. Figure 16 As shown in Fig. 17, the turning assembly 4 moves along the conveying direction of the axle 1 to the starting moving position, and the rotating drive mechanism 6 drives the slot seat 4.1 to turn to the starting position.

[0056] In summary, the electric turning system designed in the present application is erected above the axle conveying line, and the turning assembly moving drive mechanism and the moving guide mechanism can drive the turning assembly 4 to move reciprocally along the conveying direction of the axle, which can seamlessly connect with the assembly line and integrate the turning process into the continuous production process of the axle assembly, realizing the full-process automation from the assembly of the parts to the forming of the axle.

[0057] Here, it should be noted that the description of the above technical solutions is exemplary, and the present specification can be embodied in different forms, and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the present disclosure thorough and complete, and will fully convey the scope disclosed by the present specification to those skilled in the art. In addition, the technical solutions of the present application are limited by the scope of the claims. In the case of using "including", "having" and "containing" described in the present specification, there can also be another part or other part, and the term used can be singular but can also represent plural. Finally, it should be noted that the above examples are only representative examples of the present application. Obviously, the present application is not limited to the above examples, and there can be many modifications. Any simple modification, equivalent change and modification made in accordance with the technical essence of the present application to the above examples shall be considered to fall within the protection scope of the present application.

Claims

1. An electric tilting system for a round axle axle, characterized in that: The system includes a system frame (2) mounted above the conveyor line of the axle (1); an axle lifting mechanism (3) for lifting the axle (1); a tilting assembly (4) connected to the system frame (2) and movable along the conveying direction of the axle (1) for rotating the axle shaft (7) of the axle (1) around the axis of the axle shaft (7); and an anti-rotation fixture (5) cooperating with the tilting assembly (4), detachably fixed to the axle shaft (1), and preventing the axle shaft (1) from rotating within the tilting assembly (4); the tilting assembly (4) includes a slot seat (4.1) that can engage with the axle shaft (7) and a rotary drive mechanism (6) for driving the slot seat (4.1) to rotate around the axis of the slot seat (4.1).

2. The electric tilting system for the round axle axle as described in claim 1, characterized in that: The axle lifting mechanism (3) includes an axle support fixture (3.1) for supporting the left and right sides of the axle (1) and an axle lifting drive mechanism (3.2) for driving the axle support fixture (3.1) to lift. The axle lifting drive mechanism (3.2) includes an axle lifting drive mechanism housing (9) fixed on the lifting base (8) and an axle lifting drive connector (10) fixed to the axle support fixture (3.1) and capable of being lifted.

3. The electric tilting system for the round axle axle as described in claim 1, characterized in that: The system frame (2) is provided with a tilting assembly moving guide mechanism for guiding the tilting assembly (4) and causing the tilting assembly (4) to reciprocate along the conveying direction of the axle (1), and a tilting assembly moving drive mechanism for driving the tilting assembly (4) to reciprocate along the conveying direction of the axle (1).

4. The electric tilting system for the round axle axle as described in claim 3, characterized in that: The tilting assembly moving guide mechanism includes a slide rail (11) fixed on the system frame (2) along the conveying direction of the axle (1) and a slider (12) cooperating with the slide rail (11), the slider (12) being fixed on the tilting assembly (4).

5. The electric tilting system for the round axle axle as described in claim 3, characterized in that: The tilting assembly moving drive mechanism includes a tilting assembly moving drive mechanism housing (13) fixed on the system frame (2) and a tilting assembly moving drive connector (14) fixed to the tilting assembly (4) and capable of reciprocating along the conveying direction of the axle (1).

6. The electric tilting system for the round axle axle as described in claim 1, characterized in that: The flip assembly (4) includes a flip assembly support (4.2) and a slot seat (4.1). The flip assembly support (4.2) is provided with the rotary drive mechanism (6). The flip assembly support (4.2) is connected to the system frame (2) and can move back and forth along the conveying direction of the axle (1). The slot seat (4.1) has a rectangular slot (15) that is open on one side and extends into the slot seat (4.1) on the other side, and can be engaged and positioned with the axle shaft (7).

7. The electric tilting system for the round axle axle as described in claim 6, characterized in that: The slot seat (4.1) is a disc-shaped slot seat structure. A chain (16) is arranged on the surface of the slot seat (4.1) along its circumferential direction. The rotary drive mechanism (6) includes a rotary drive motor assembly (6.1) fixed on the flip assembly support (4.2) and a sprocket driven by the rotary drive motor assembly (6.1). The sprocket is connected to the chain (16).

8. The electric tilting system for the round axle axle as described in claim 7, characterized in that: A digit issuing plate (17) is fixed at each end of the circumferential direction of the card slot (4.1), and a rotary switch (18) corresponding to the digit issuing plate (17) is fixed on the flip assembly support (4.2).

9. The electric tilting system for the round axle axle as described in claim 1, characterized in that: The anti-rotation fixture (5) includes an anti-rotation bracket (5.1) fixed to the axle shaft (7) by a detachable structure. The anti-rotation bracket (5.1) includes an arc surface (19) that fits and is positioned against the surface of the axle shaft (7).

10. A method for flipping an electric flipping system for a round axle axle as described in any one of claims 1-9, characterized in that: include: The anti-rotation fixture (5) is detachably fixed to the axle shaft (7). The axle lifting mechanism (3) drives the axle (1) and axle shaft (7) to rise to the position to be flipped. The flipping assembly (4) moves along the conveying direction of the axle (1) and the axle shaft (7) is engaged in the slot seat (4.1). The rotation drive mechanism (6) drives the slot seat (4.1) and axle shaft (7) to flip. The flipping assembly (4) moves along the conveying direction of the axle (7) and the axle shaft (7) is disengaged from the slot seat (4.1). The axle lifting mechanism (3) drives the axle (1) and axle shaft (7) to fall to the starting height. The flipping assembly (4) moves along the conveying direction of the axle (1) to the starting moving position. The rotation drive mechanism (6) drives the slot seat (4.1) to flip to the starting position.

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