Electric drive assembly clamping, rotating and three-phase electric docking device

Abstract

The utility model discloses an electric drive assembly clamping, rotating and three-phase electricity butt joint device which comprises a base, a movable clamping assembly, a rotating drive assembly and a three-phase electricity butt joint assembly. The movable clamping assembly comprises a fixed frame installed on the top of the base, a first movable frame slidably connected to the top of the fixed frame, a first driving mechanism used for driving the first movable frame to slide back and forth relative to the fixed frame, and a clamping mechanism installed on the first movable frame and used for clamping the electric driving assembly. The rotary driving assembly is installed on the first movable frame and used for being in butt joint with a spline shaft on the electric driving assembly; the three-phase electricity butt joint assembly is installed on the first movable frame and used for being in butt joint with a three-phase copper bar on the electric drive assembly. The device is compact in structure, high in automation degree and high in reliability, the problems existing in the prior art are effectively solved, and the production efficiency and the equipment reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing technical field, concretely relates to a kind of electric drive assembly clamping, rotation and three-phase electricity docking device. BACKGROUND

[0002] At present, for the clamping, rotation or three-phase electricity docking of electric drive assembly on electric drive assembly assembly line, there are mainly following forms:

[0003] The first form is to use manual docking form (or semi-automatic form), when electric drive assembly is conveyed to detection station along roller way, manually carry or hoist electric drive assembly to the test table of line side, then manually fix electric drive assembly and connect rotating docking device on electric drive assembly, and manually connect test wire harness after which subsequent measurement operation is carried out.The equipment of this type is simple in structure, and manual docking is also reliable, but the process needs manual intervention and the operation time is relatively long, which is not suitable for production line with higher rhythm requirement.

[0004] Another is to use other clamping power source or other structure's rotating docking device or three-phase electricity docking device, such as using first air cylinder as power source for clamping power source or rotating docking device, three-phase electricity docking device using fixed structure form, which is prone to cause the following problems: electric drive assembly clamping force is too small, clamping is unstable, spline docking is not connected during rotating docking process, or three-phase electricity docking is short-circuited or open-circuited. INVENTION CONTENTS

[0005] From the above introduction of existing technology, it can be seen that for the clamping, rotation and three-phase electricity docking device of electric drive assembly on existing electric drive assembly assembly line, some are semi-automatic operation form, which needs manual operation and long time, and cannot meet the requirement of high rhythm. Some use other structure form device, and the equipment reliability is low. In order to solve the above problems, the utility model designs a kind of electric drive assembly clamping, rotating and three-phase electricity docking device with compact structure, high automation degree and high reliability, which can fully meet the use requirement.

[0006] To meet the requirement of compact structure, high automation degree and high reliability, the utility model realizes through the following technical scheme:

[0007] The utility model provides an electric drive assembly clamping, rotating and three -phase electricity docking device, including base, movable clamping component, rotating drive component and three -phase electricity docking component, movable clamping component includes the fixed frame of installation in the top of base, the first movable frame of sliding connection in the top of fixed frame, the first drive mechanism for driving the first movable frame relative to the forward and backward slip of fixed frame, and the clamping mechanism for clamping electric drive assembly is installed on the first movable frame, rotating drive component is installed on the first movable frame, and rotating drive component is used to carry out the docking with the spline shaft on electric drive assembly, three -phase electricity docking component is installed on the first movable frame, and three -phase electricity docking component is used to carry out the docking with the three -phase copper bar on electric drive assembly.

[0008] As a further optimization scheme of the utility model, the first slide rail is installed on the top of the fixed frame, and a limit stop is installed on the front and rear ends of the first slide rail; the first drive mechanism includes a first air cylinder installed on the side of the fixed frame, the output end of the first air cylinder is drivingly connected with the first movable frame, and a drag chain is installed between the fixed frame and the first movable frame.

[0009] As a further optimization scheme of the utility model, a plurality of clamping mechanisms are arranged circumferentially on the front end face of the first movable frame, each clamping mechanism includes a fixed seat installed on the front end face of the first movable frame, an oil cylinder installed on the fixed seat, and a clamping block drivingly connected with the oil cylinder at one end, and the clamping block is rotationally connected with the fixed seat through a rotating shaft and an axle seat at the middle part.

[0010] As a further optimization scheme of the utility model, the rotating drive component includes a second movable frame slidingly connected with the first movable frame, a second drive mechanism for driving the second movable frame to slide forward and backward relative to the first movable frame, and a rotating mechanism installed on the second movable frame, the rotating mechanism is connected with a docking sleeve for docking with the spline shaft on the electric drive assembly through an extension assembly at the front end, and a through hole is formed in the first movable frame for the docking sleeve to pass through.

[0011] As a further optimization scheme of the utility model, a second slide rail is installed on the top of the first movable frame; the second drive mechanism includes a first servo motor installed on the first movable frame, and the output end of the first servo motor is drivingly connected with the second movable frame through a gear and a rack.

[0012] As a further optimization scheme of the utility model, the rotating mechanism includes a second servo motor installed on the second movable frame through a rotating bearing structure, and the output end of the second servo motor is connected with a docking sleeve through the extension assembly.

[0013] As a further optimization scheme of the utility model, the telescopic assembly includes a rotating shaft, one end of the rotating shaft is connected with the second servo motor output end through a shaft coupling, the other end is connected with the butt joint sleeve, a limiting sheet is installed in the middle of the rotating shaft, a first spring is sleeved on the rotating shaft between the limiting sheet and the shaft coupling, and a gap is formed between the inner end of the rotating shaft and the inside of the shaft coupling.

[0014] As a further optimization scheme of the utility model, the three-phase electricity butt joint assembly includes a fixed support installed on the first movable frame, a second air cylinder installed on the fixed support, a mounting plate slidingly connected below the fixed support, and a butt joint structure installed on the mounting plate, and the mounting plate is drivingly connected with the second air cylinder output end.

[0015] As a further optimization scheme of the utility model, the butt joint structure includes a nylon connecting plate installed on the mounting plate, comb-tooth-shaped guide bars installed side by side on the nylon connecting plate, a connecting shaft installed between adjacent two guide bars, a second spring sleeved on the connecting shaft, and a butt joint copper sleeve installed on the head of the connecting shaft.

[0016] As a further optimization scheme of the utility model, the second air cylinder is installed on the fixed support through a fixed connecting seat, and the second air cylinder output end is drivingly connected with the mounting plate through a movable connecting seat; a sliding seat is installed below the fixed support, a third sliding rail is slidingly connected below the sliding seat, and the third sliding rail is fixedly connected with the mounting plate; the mounting plate is fixedly connected with the third sliding rail through a rib plate and a fixed plate.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] (1) The device integrates three functions of clamping, rotating and three-phase electricity butt joint, has a clever design, a compact structure, and greatly saves the space of the production line.

[0019] (2) The clamping mechanism uses hydraulic pressure as a power source, has large clamping force and good stability, and ensures the stability of the electric drive assembly during rotation and dragging. The butt joint sleeve in the rotating drive assembly has a certain floating space in the axial and radial directions, which ensures that the spline shaft on the electric drive assembly can be reliably butt jointed, and improves the success rate of spline butt joint. The butt joint copper sleeve in the three-phase electricity butt joint assembly is pressed by the spring and cooperates with the size, which ensures that the three-phase copper bar on the electric drive assembly is tightly fitted, and avoids the occurrence of short circuit and open circuit.

[0020] (3) The device can be flexibly arranged according to the specific form and conveying direction of the electric drive assembly, and is highly adaptable. The connection structure between the components is clear, easy to disassemble and replace, and reduces maintenance costs.

[0021] (4) The device has high automation degree, reduces manual intervention, shortens operation time, and improves production efficiency. The reliable clamping and docking mechanism ensures the stability and accuracy of the electric drive assembly during detection, improves product quality. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The structure of the device of the utility model Figure 1 .

[0023] Figure 2 The structure of the device of the utility model Figure 2 .

[0024] Figure 3 The structure of the device of the utility model Figure 2 .

[0025] Figure 4 The longitudinal section structure of the device of the utility model

[0026] Figure 5 The structure of the device of the utility model Figure 4 .

[0027] Figure 6 The structure of the device of the utility model Figure 4 .

[0028] Figure 7 The structure of the device of the utility model Figure 1 .

[0029] Figure 8 The bottom view structure of the three-phase electric docking assembly of the utility model

[0030] Figure 9 The application structure of the device of the utility model on the production line

[0031] The figure label: 1, base; 2, movable clamping assembly; 21, fixed frame; 22, first movable frame; 221, through hole; 23, first driving mechanism; 231, first cylinder; 24, clamping mechanism; 241, fixed seat; 242, oil cylinder; 243, clamping block; 244, rotating shaft; 245, shaft seat; 25, first sliding rail; 26, stopper; 27, drag chain; 3, rotary drive assembly; 31, second movable frame; 32, second driving mechanism; 321, first servo motor; 33, rotary mechanism; 331, second servo motor; 34, telescopic assembly; 341, rotating shaft; 342, shaft coupling; 343, limiting sheet; 344, first spring; 345, gap; 35, butt joint sleeve; 36, second sliding rail; 37, gear; 38, rack; 39, rotary bearing structure; 4, three-phase electric butt joint assembly; 41, fixed support; 42, second cylinder; 43, mounting plate; 431, rib plate; 432, fixed plate; 44, nylon connecting plate; 45, butt joint structure; 451, guide bar; 452, connecting shaft; 453, second spring; 454, butt joint copper sleeve; 46, fixed connecting seat; 47, movable connecting seat; 48, sliding seat; 49, third sliding rail; 5, switch assembly; 6, tray; 7, conveying roller; 8, electric drive assembly; 9, operation platform. DETAILED DESCRIPTION

[0032] In order for those skilled in the art to better understand the technical scheme of the utility model, the preferred embodiment of the utility model will be described below in combination with specific examples, but it should be understood that the drawings are only used for illustrative description and cannot be understood as a limitation on the patent; in order to better illustrate the embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the actual size of the electric drive assembly; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for illustrative description and cannot be understood as a limitation on the patent.

[0033] Please refer to Figures 1-9 , the embodiment provides a kind of electric drive assembly clamping, rotating and three-phase electric butt joint device.The device includes base 1, movable clamping assembly 2, rotary drive assembly 3 and three-phase electric butt joint assembly 4, movable clamping assembly 2 is used to clamp electric drive assembly 8, rotary drive assembly 3 is used to be butt jointed with spline shaft on electric drive assembly 8, three-phase electric butt joint assembly 4 is used to be butt jointed with three-phase copper bar on electric drive assembly 8.The overall structure of the device is compact, layout is reasonable, clamping is stable, rotating butt joint is reliable and can be automatically butt jointed with three-phase electric.The device can greatly reduce the required space of such equipment and improve the reliability of butt joint process, and the device is especially suitable for automatic detection station or test bench of electric drive assembly assembly line.

[0034] In some examples, please refer toFigure 1 and Figure 2 The movable clamping assembly 2 comprises a fixed frame 21 installed on the top of the base 1, a first movable frame 22 slidingly connected to the top of the fixed frame 21, a first driving mechanism 23 for driving the first movable frame 22 to slide forward and backward relative to the fixed frame 21, and a clamping mechanism 24 installed on the first movable frame 22 and used for clamping the electric drive assembly 8.

[0035] The top of the fixed frame 21 is provided with a first sliding rail 25, and the front and rear ends of the first sliding rail 25 are provided with limiters 26; the first driving mechanism 23 comprises a first air cylinder 231 installed on the side of the fixed frame 21, and the output end of the first air cylinder 231 is drivingly connected with the first movable frame 22, and a drag chain 27 is installed between the fixed frame 21 and the first movable frame 22. Please refer to Figure 6 A plurality of clamping mechanisms 24 are arranged circumferentially on the front end face of the first movable frame 22, each clamping mechanism 24 comprises a fixed seat 241 installed on the front end face of the first movable frame 22, an oil cylinder 242 installed on the fixed seat 241, and a clamping block 243 drivingly connected with one end of the oil cylinder 242, and the middle part of the clamping block 243 is rotationally connected with the fixed seat 241 through a rotating shaft 244 and a shaft seat 245. The oil cylinder 242 uses hydraulic pressure as a power source, and the hydraulic clamping force is relatively larger than the gas cylinder force, which ensures the stability of the electric drive assembly 8 during the subsequent high-speed dragging process of the shaft system in the detection process. The fixed seat 241 is also provided with a switch assembly 5 for detecting the position and state of the clamping block 243.

[0036] According to the posture of the electric drive assembly 8 on the tray 6 and the conveying direction of the tray 6 on the conveying roller 7, a complete set of devices is arranged on the side of the conveying roller 7, and the positioning pin on the tray 6 is inserted into the positioning hole on the electric drive assembly 8, when the electric drive assembly 8 enters the detection station with the tray 6, the clamping mechanism 24 is clamped against the electric drive assembly 8 under the action of the first air cylinder 231 and the first sliding rail 25 below, and then the clamping block 243 of the clamping mechanism 24 is pushed and pulled by the hydraulic oil cylinder 242, and the clamping block 243 tightly hooks the protruding plane on the electric drive assembly 8 to clamp and lock the electric drive assembly 8.

[0037] In some examples, after the electric drive assembly 8 is clamped and locked by the movable clamping assembly 2 described above, in order to complete the dragging of the shaft system inside the electric drive assembly 8, a rotating driving assembly 3 for rotating the shaft system is provided. Please refer to Figures 1-4, the rotating driving assembly 3 comprises a second movable frame 31 slidably connected to the first movable frame 22, a second driving mechanism 32 for driving the second movable frame 31 to slide forward and backward relative to the first movable frame 22, and a rotating mechanism 33 mounted on the second movable frame 31. The rotating mechanism 33 is connected at the front end thereof to a butt joint sleeve 35 for butt joint with the spline shaft of the electric driving assembly 8 through an extension assembly 34. The first movable frame 22 is provided with a through hole 221 for the butt joint sleeve 35 to pass through.

[0038] The first movable frame 22 is provided at the top thereof with a second slide rail 36. The second driving mechanism 32 comprises a first servo motor 321 mounted on the first movable frame 22, and the output end of the first servo motor 321 is drivingly connected to the second movable frame 31 through a gear 37 and a rack 38. The rotating mechanism 33 comprises a second servo motor 331 mounted on the second movable frame 31 through a rotating bearing structure 39, and the output end of the second servo motor 331 is connected to the butt joint sleeve 35 through the extension assembly 34. For details, please refer to Figure 5 The extension assembly 34 comprises a rotating shaft 341, one end of which is connected to the output end of the second servo motor 331 through a shaft coupling 342, and the other end of which is connected to the butt joint sleeve 35. A limiting piece 343 is mounted on the middle portion of the rotating shaft 341. A first spring 344 is sleeved on the rotating shaft 341 between the limiting piece 343 and the shaft coupling 342. The inner end of the rotating shaft 341 has a gap 345 with the inside of the shaft coupling 342. The rotating bearing structure 39 is further provided with a switch assembly 5 for detecting the extension position and state of the rotating shaft 341.

[0039] Under the action of the first servo motor 321, the rotating force of the first servo motor 321 can be changed into the forward and backward pushing force of the remaining rotating mechanism 33 through the conversion of the gear 37, the rack 38 and the second slide rail 36. The first servo motor 321 for forward and backward pushing is used to provide the accurate and stable forward and backward pushing force for the rotating mechanism 33, and the second servo motor 331 for rotating is used to provide the angle rotating force required in the spline butt joint process and the subsequent continuous and stable shaft rotating force of the electric driving assembly 8. The second servo motor 331, the rotating shaft 341, the first spring 344 and the butt joint sleeve 35 are all fixed on the rotating bearing structure 39, and the tolerance ranges of the parts are matched well, so that the final butt joint sleeve 35 can have a certain floating space in the axial and radial directions, and the butt joint sleeve 35 and the butt joint spline shaft of the electric driving assembly 8 can be reliably butt jointed, greatly improving the success rate of the spline butt joint.

[0040] In some examples, please refer to Figure 7 and Figure 8The three-phase electric connection assembly 4 comprises a fixed support 41 mounted on the first movable frame 22, a second air cylinder 42 mounted on the fixed support 41, a mounting plate 43 slidingly connected below the fixed support 41, and a connection structure 45 mounted on the mounting plate 43, and the mounting plate 43 is drivingly connected with the output end of the second air cylinder 42. The second air cylinder 42 is mounted on the fixed support 41 through a fixed connecting seat 46, and the output end of the second air cylinder 42 is drivingly connected with the mounting plate 43 through a movable connecting seat 47; a sliding seat 48 is mounted below the fixed support 41, a third sliding rail 49 is slidingly connected below the sliding seat 48, the third sliding rail 49 is fixedly connected with the mounting plate 43; and the mounting plate 43 is fixedly connected with the third sliding rail 49 through a rib plate 431 and a fixed plate 432. Through the pushing of the second air cylinder 42 and the action of the third sliding rail 49, the connection copper sleeve 454 and other movable connecting parts can be telescoped to complete the connection with the three-phase copper bars on the electric drive assembly 8. The fixed support 41 is further provided with a switch assembly 5 for detecting the sliding position and state of the mounting plate 43.

[0041] The connection structure 45 comprises a nylon connecting plate 44 mounted on the mounting plate 43, comb-shaped guide bars 451 mounted side by side on the nylon connecting plate 44, connecting shafts 452 mounted between adjacent two guide bars 451, second springs 453 sleeved on the connecting shafts 452, and a connection copper sleeve 454 mounted on the head of the connecting shaft 452. The nylon connecting plate 44 is an insulating non-metal part, and the electric current is mainly conducted by the connecting shafts 452 and the connection copper sleeve 454. In order to avoid short circuit and open circuit, the comb-shaped guide bars 451 are arranged on the nylon connecting plate 44 to ensure the guidance and separation between the conductive parts. In order to avoid the unstable and insecure fit of the connection copper bars and the three-phase copper bars of the electric drive assembly 8, the second springs 453 are arranged on the connecting shafts 452, and the size cooperation between the parts is ensured, so that the connection copper sleeve 454 can float in various angles and have a certain spring pressure during the fit with the electric drive assembly 8, and the connection surface of the copper sleeve and the three-phase copper bars of the electric drive assembly 8 can be closely fitted.

[0042] Please refer to Figure 9 When the tray 6 and the electric drive assembly 8 enter the detection station along with the conveying roller 7, the movable clamping assembly 2 first clamps and positions the electric drive assembly 8, and then the rotating drive assembly 3 and the three-phase electric connection assembly 4 respectively complete the spline shaft rotating connection and the copper bar connection of the three-phase electric connection in the electric drive assembly 8.

[0043] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the utility model of the electric drive assembly clamping, rotating and three-phase electric connection device, and the positive effects recorded in the utility model can be achieved.

[0044] Unless otherwise stated and limited, the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, as used herein, refer to the orientation or position of the device or element shown in the drawings, and are used only to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore the terms describing the orientation or position of the device or element herein are only used for exemplary description, and cannot be understood as a limitation on the patent. For those skilled in the art, the specific meanings of the above terms can be understood in conjunction with the drawings and according to the specific circumstances.

[0045] Unless otherwise stated and limited, the terms "set", "connected" and "connected" in the present application should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification or equivalent change of the above embodiment according to the technical essence of the present application falls within the scope of protection of the present application.

Claims

1. A clamping, rotating, and three-phase electrical connection device for an electric drive assembly, characterized in that, The device includes a base (1), a movable clamping assembly (2), a rotary drive assembly (3), and a three-phase electrical docking assembly (4). The movable clamping assembly (2) includes a fixed frame (21) mounted on the top of the base (1), a first movable frame (22) slidably connected to the top of the fixed frame (21), a first drive mechanism (23) for driving the first movable frame (22) to slide back and forth relative to the fixed frame (21), and a clamping mechanism (24) mounted on the first movable frame (22) for clamping the electric drive assembly (8). The rotary drive assembly (3) is mounted on the first movable frame (22) and is used to dock with the spline shaft on the electric drive assembly (8). The three-phase electrical docking assembly (4) is mounted on the first movable frame (22) and is used to dock with the three-phase copper busbar on the electric drive assembly (8).

2. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 1, characterized in that, The top of the fixed frame (21) is equipped with a first slide rail (25), and limiters (26) are installed at both ends of the first slide rail (25); the first drive mechanism (23) includes a first cylinder (231) installed on the side of the fixed frame (21), the output end of the first cylinder (231) is driven to the first movable frame (22), and a drag chain (27) is installed between the fixed frame (21) and the first movable frame (22).

3. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 1, characterized in that, The first movable frame (22) has a plurality of clamping mechanisms (24) arranged circumferentially on its front end face. Each clamping mechanism (24) includes a fixed seat (241) mounted on the front end face of the first movable frame (22), a hydraulic cylinder (242) mounted on the fixed seat (241), and a clamping block (243) with one end drivenly connected to the hydraulic cylinder (242). The middle part of the clamping block (243) is rotatably connected to the fixed seat (241) through a rotating shaft (244) and a bearing seat (245).

4. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 1, characterized in that, The rotary drive assembly (3) includes a second movable frame (31) slidably connected to the first movable frame (22), a second drive mechanism (32) for driving the second movable frame (31) to slide back and forth relative to the first movable frame (22), and a rotary mechanism (33) mounted on the second movable frame (31). The front end of the rotary mechanism (33) is connected to a docking sleeve (35) for docking with the spline shaft on the electric drive assembly (8) via a telescopic assembly (34). The first movable frame (22) has a through hole (221) for the docking sleeve (35) to pass through.

5. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 4, characterized in that, The first movable frame (22) is equipped with a second slide rail (36) on its top; the second drive mechanism (32) includes a first servo motor (321) mounted on the first movable frame (22), and the output end of the first servo motor (321) is driven to the second movable frame (31) through a gear (37) and a rack (38).

6. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 4, characterized in that, The rotating mechanism (33) includes a second servo motor (331) mounted on the second movable frame (31) via a rotating bearing structure (39), and the output end of the second servo motor (331) is connected to a docking sleeve (35) via the telescopic component (34).

7. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 6, characterized in that, The telescopic assembly (34) includes a rotating shaft (341), one end of which is connected to the output end of the second servo motor (331) via a coupling (342), and the other end is connected to the docking sleeve (35); a limiting piece (343) is installed in the middle of the rotating shaft (341), and a first spring (344) is sleeved on the rotating shaft (341) between the limiting piece (343) and the coupling (342); there is a gap (345) between the inner end of the rotating shaft (341) and the inside of the coupling (342).

8. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 1, characterized in that, The three-phase electrical connection assembly (4) includes a fixed bracket (41) mounted on the first movable frame (22), a second cylinder (42) mounted on the fixed bracket (41), a mounting plate (43) slidably connected to the bottom of the fixed bracket (41), and a connection structure (45) mounted on the mounting plate (43). The mounting plate (43) is drivenly connected to the output end of the second cylinder (42).

9. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 8, characterized in that, The docking structure (45) includes a nylon connecting plate (44) mounted on the mounting plate (43), comb-shaped guides (451) mounted side by side on the nylon connecting plate (44), a connecting shaft (452) mounted between two adjacent guides (451), a second spring (453) sleeved on the connecting shaft (452), and a docking copper sleeve (454) mounted on the head of the connecting shaft (452).

10. The electric drive assembly clamping, rotating, and three-phase electrical connection device according to claim 8, characterized in that, The second cylinder (42) is mounted on the fixed bracket (41) via a fixed connecting seat (46), and the output end of the second cylinder (42) is driven to be connected to the mounting plate (43) via a movable connecting seat (47); a slide (48) is installed below the fixed bracket (41), and a third slide rail (49) is slidably connected below the slide (48), and the third slide rail (49) is fixedly connected to the mounting plate (43); the mounting plate (43) is fixedly connected to the third slide rail (49) via a rib plate (431) and a fixed plate (432).

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