A transport device for the production of electric vehicle parts

By using a hydraulically driven clamping mechanism and a double-locking fixing mechanism, combined with a screw-controlled locking auxiliary mechanism, the problem of unstable fixing during the transportation of electric vehicle parts has been solved, achieving precise clamping and efficient transportation, and improving production efficiency.

CN224465920UActive Publication Date: 2026-07-07SICHUAN OULEQI NEW ENERGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN OULEQI NEW ENERGY CO LTD
Filing Date
2025-09-04
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing electric vehicle parts production and transportation equipment is difficult to flexibly fix according to the shape and size of different parts, resulting in slippage, shaking or collision during transportation, affecting stability and safety. At the same time, the installation and disassembly of clamping components are inconvenient, affecting production efficiency.

Method used

The system employs a hydraulically driven clamping mechanism, a double-locking and fixing mechanism, and a screw-controlled locking auxiliary mechanism, combined with a bottom wheel and guide roller assembly, to achieve precise clamping and secure fixing of electric vehicle parts, simplifying the operation process.

Benefits of technology

It achieves stable fixing of electric vehicle parts, avoids deformation, improves transportation stability and production efficiency, and simplifies the installation and disassembly process of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a transportation device for the production of electric vehicle parts, including a frame, a clamping mechanism, a fixing and snapping mechanism, and a snapping auxiliary mechanism. The clamping mechanism includes a mounting plate and a pressing frame. The fixing and snapping mechanism includes a snapping tube and a snapping rod. The snapping auxiliary mechanism includes a spiral frame and an outer retaining ring. A hydraulic cylinder provides precise and controllable clamping force to ensure stable fixing of the parts. The rotational connection between the push frame and the push rod enables effective force transmission. The pressing frame rotates on the support frame, forming a lever effect to amplify the clamping force. The transmission rod connection ensures uniform force distribution. The locking spring block cooperates with the snapping groove to form a preliminary lock, preventing the snapping rod from loosening. The tension spring rod extends into the embedding hole to form a secondary lock, greatly improving the connection reliability. The insertion groove guides the snapping rod to be accurately inserted, simplifying the operation process and enhancing the connection stability between the mounting plate and the frame.
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Description

Technical Field

[0001] This utility model relates to the field of transportation technology, and more specifically, it relates to a transportation device for the production of electric vehicle parts. Background Technology

[0002] In existing technologies, transportation equipment used for electric vehicle parts production often suffers from difficulties in securing and clamping the parts during transport. Due to the wide variety of electric vehicle parts, varying in shape and size, traditional transportation equipment's securing systems cannot effectively adapt to the needs of different parts, leading to potential slippage, shaking, or collisions during transport, affecting stability and safety.

[0003] Firstly, traditional fixing and clamping devices mostly use mechanical clamps or simple fixing brackets. These devices cannot be flexibly adjusted according to the different shapes and sizes of the parts, resulting in some larger or irregularly shaped parts not being effectively fixed. For smaller parts or parts that are easily affected by external forces, excessive clamping force from the fixing device will cause deformation of the parts, while insufficient clamping force may cause the parts to loosen, which not only affects production efficiency but may also lead to quality problems.

[0004] Secondly, the installation and disassembly of existing clamping components are usually cumbersome, lacking quick disassembly and adjustment capabilities. When it is necessary to replace or adjust parts, operators often need to spend a lot of time manually adjusting or disassembling, which increases workload and affects the smoothness of the production line. Especially when it is necessary to frequently change different parts or adjust equipment configuration, traditional clamping devices do not have efficient and quick adjustment methods, resulting in low production efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a transportation equipment for the production of electric vehicle parts, so as to solve the technical problems mentioned in the background art, such as the difficulty in fixing and clamping the parts during transportation, and the inconvenience of installing and disassembling the clamping components.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a transportation device for the production of electric vehicle parts, comprising a frame, a clamping mechanism, a fixing and clamping mechanism, and a clamping auxiliary mechanism. The clamping mechanism includes a mounting plate and a pressing frame. A support frame is mounted on the side of the mounting plate. The pressing frame is rotatably mounted on the support frame. A push rod is rotatably mounted on one end of the pressing frame. A hydraulic cylinder is mounted on the side of the mounting plate. A push frame is rotatably mounted on one end of the hydraulic cylinder. The push frame and the push rod are rotatably connected. Both ends of the transmission rod are rotatably connected to the push rod and the mounting plate. The fixing and clamping mechanism includes a clamping tube and a clamping rod. An embedding hole is formed on the outer wall of the clamping rod. An insertion groove and a clamping slot are formed on the inner wall of the clamping tube. A locking spring block is formed on the outer wall of the clamping rod. The clamping rod extends into the clamping tube through the insertion groove. The locking spring block on the clamping rod extends into the clamping slot. A tension spring rod is slidably mounted laterally on the outer wall of the clamping tube. A longitudinal sliding ring is slidably mounted longitudinally on the outer wall of the clamping tube. The inner wall of the longitudinal sliding ring presses against the tension spring rod as it extends into the embedding hole.

[0009] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a spiral frame and an outer retaining ring. The spiral frame is rotatably mounted on the outer wall of the snap-fit ​​tube, and the inner wall of the spiral frame is threadedly connected to the longitudinal moving ring. A rotating ball block is installed at the top end of the spiral frame. The outer retaining ring is fixedly mounted on the outer wall of the snap-fit ​​tube, and a pair of shrink blocks is slidably mounted at the bottom end of the outer retaining ring. The shrink blocks are arranged in multiple pairs, and a shrink spring is installed between the pairs of shrink blocks. The top end of the rotating ball block passes through the pairs of shrink blocks in sequence, so that the spiral frame rotates stably on the outer wall of the snap-fit ​​tube.

[0010] The present invention is further configured such that bottom wheels are installed around the bottom end of the frame, and a pulling frame is installed at one end of the frame. The design of the bottom wheels around the frame enables the equipment to move flexibly, thereby improving transportation efficiency and ease of operation.

[0011] The present invention is further configured such that a guide roller assembly is installed at the top end of the frame, and the guide roller assembly is symmetrically arranged. The guide roller assembly is symmetrically arranged at the top of the frame to provide guidance and support for the accessories and ensure that the accessories are placed accurately.

[0012] The present invention is further configured such that a transverse plate is installed on the side of the mounting plate, and one end of the hydraulic cylinder is rotatably connected to the top end of the transverse plate. The transverse plate is installed on the side of the mounting plate to provide a stable connection base for the hydraulic cylinder.

[0013] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the clamping tube, the connecting plate is fixedly installed on one end face of the mounting plate, the connecting plate connects the clamping tube and the mounting plate, providing additional structural support and enhancing connection stability.

[0014] The present invention is further configured such that a limiting block is installed at one end of the locking rod, and one end of the locking rod extends through the frame and the mounting plate to engage with the locking tube, thereby fixing the mounting plate on the frame.

[0015] The present invention is further configured such that a centripetal rail is installed at the bottom end of the outer fixed ring, and the shrink block is centripetally slidably installed on the centripetal rail. The centripetal rail is installed at the bottom of the outer fixed ring to provide precise centripetal sliding guidance for the shrink block.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a transportation device for the production of electric vehicle parts, which has the following beneficial effects:

[0018] This utility model is equipped with a clamping mechanism. The hydraulic cylinder provides precise and controllable clamping force to ensure that the parts are fixed and stable. The rotational connection between the push frame and the push rod realizes the effective transmission of force. The pressing frame rotates on the support frame to form a lever effect, amplifying the clamping force. The transmission rod connection ensures that the force is evenly distributed and avoids deformation of the parts. The transverse plate provides a stable foundation for the hydraulic cylinder and enhances the stability of the system.

[0019] This utility model is equipped with a fixed locking mechanism. The locking spring block and the locking groove cooperate to form a preliminary lock to prevent the locking rod from loosening. The tension spring rod extends into the embedding hole to form a secondary lock, which greatly improves the connection reliability. The insertion groove guides the locking rod to be accurately inserted, simplifying the operation process. The longitudinal movement ring precisely controls the movement of the tension spring rod to ensure accurate locking operation. The connecting plate provides additional structural support and enhances the connection stability between the mounting plate and the frame.

[0020] This utility model is equipped with a snap-fit ​​auxiliary mechanism. The spiral frame is threadedly connected to the longitudinal movement ring to achieve precise control of the longitudinal movement ring position. Multiple pairs of shrink blocks provide graded positioning to prevent the spiral frame from accidentally loosening. The shrink spring provides elastic support to ensure accurate and stable positioning of the shrink blocks. The rotating ball block passes through the shrink blocks to provide stable rotational support for the spiral frame. The centripetal rail provides precise guidance for the shrink blocks to prevent offset and jamming. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the clamping mechanism in this utility model. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the clamping mechanism in this utility model. Figure 2 ;

[0024] Figure 4This is a schematic diagram of the fixed locking mechanism and the locking auxiliary mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the fixing and locking mechanism and the locking auxiliary mechanism in this utility model.

[0026] In the diagram: 1. Frame; 2. Mounting plate; 3. Pressing frame; 4. Support frame; 5. Push rod; 6. Hydraulic cylinder; 7. Push frame; 8. Locking pipe; 9. Locking rod; 10. Embedding hole; 11. Insertion groove; 12. Locking groove; 13. Locking spring block; 14. Tension spring rod; 15. Longitudinal transfer ring; 16. Spiral frame; 17. Outer retaining ring; 18. Rotating ball block; 19. Reduction block; 20. Reduction spring; 21. Bottom wheel; 22. Pulling frame; 23. Guide roller assembly; 24. Transverse plate; 25. Connecting plate; 26. Limiting block; 27. Centripetal rail; 101. Transmission rod. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A transport device for the production of electric vehicle parts includes a frame 1, a clamping mechanism, a fixing and clamping mechanism, and a clamping auxiliary mechanism. The clamping mechanism includes a mounting plate 2 and a pressing frame 3. A support frame 4 is mounted on the side of the mounting plate 2. The pressing frame 3 is rotatably mounted on the support frame 4. A push rod 5 is rotatably mounted on one end of the pressing frame 3. A hydraulic cylinder 6 is mounted on the side of the mounting plate 2. A push frame 7 is rotatably mounted on one end of the hydraulic cylinder 6. The push frame 7 and the push rod 5 are rotatably connected. Both ends of a transmission rod 101 are rotatably connected to the push rod 5 and the mounting plate 2. The fixed locking mechanism includes a locking tube 8 and a locking rod 9. The outer wall of the locking rod 9 has an insertion hole 10. The inner wall of the locking tube 8 has an insertion groove 11 and a locking slot 12. The outer wall of the locking rod 9 has a locking spring block 13. The locking rod 9 extends into the locking tube 8 through the insertion groove 11. When the locking rod 9 is rotated, the locking spring block 13 extends into the locking slot 12. A tension spring rod 14 is slidably installed laterally on the outer wall of the locking tube 8. A longitudinal sliding ring 15 is slidably installed longitudinally on the outer wall of the locking tube 8. The inner wall of the longitudinal sliding ring 15 presses against the tension spring rod 14 and extends into the insertion hole 10.

[0031] In this embodiment, the clamping mechanism achieves clamping and fixing of the accessories through hydraulic drive. After the hydraulic cylinder 6 is started, it pushes the push frame 7 to move. The push frame 7 drives the push rod 5 to move through the rotation connection. The push rod 5 drives the pressing frame 3 to rotate on the support frame 4, applying clamping force to the electric vehicle accessories placed on the mounting plate 2. The transmission rod 101 connects the push rod 5 and the mounting plate 2 to ensure stable and reliable force transmission. The transverse plate 24 provides a stable connection base for the hydraulic cylinder 6. The whole process achieves precise clamping control of the accessories. The fixing and snapping mechanism achieves firm fixing of the mounting plate 2 on the frame 1 through double locking. The snapping rod 9 passes through the frame 1 and the mounting plate 2, and extends into the snapping tube 8 through the insertion groove 11. Rotating the snapping rod 9 causes the locking spring block 13 to extend into the snapping groove 12, forming a preliminary lock. Then, the longitudinal moving ring 15 is pushed, and its inner wall presses against the tension spring rod 14, causing the tension spring rod 14 to extend into the embedding hole 10 on the outer wall of the snapping rod 9, forming a secondary lock. The limiting block 26 prevents the snapping rod 9 from completely passing through the structure, which facilitates operation and control.

[0032] The snap-fit ​​auxiliary mechanism includes a screw frame 16 and an outer retaining ring 17. The screw frame 16 is rotatably mounted on the outer wall of the snap-fit ​​tube 8. The inner wall of the screw frame 16 is threadedly connected to the longitudinal moving ring 15. A rotating ball block 18 is installed at the top end of the screw frame 16. The outer retaining ring 17 is fixedly mounted on the outer wall of the snap-fit ​​tube 8. A pair of shrink blocks 19 are slidably mounted at the bottom end of the outer retaining ring 17. The pair of shrink blocks 19 are arranged in multiple pairs. A shrink spring 20 is installed between the pairs of shrink blocks 19. The top end of the rotating ball block 18 passes through the pairs of shrink blocks 19 in sequence, so that the screw frame 16 rotates stably on the outer wall of the snap-fit ​​tube 8.

[0033] In this embodiment, the snap-fit ​​auxiliary mechanism achieves precise adjustment of the longitudinal movement ring 15 through the spiral control system. When the spiral frame 16 is rotated, the longitudinal movement ring 15 is pushed to move longitudinally through the threaded connection between the inner wall and the longitudinal movement ring 15. Multiple pairs of paired shrink blocks 19 slide centripetally on the centripetal rail 27, and the shrink springs 20 between the shrink blocks 19 provide elastic support. The rotating ball block 18 passes between the pairs of shrink blocks 19, providing stable rotational support and graded positioning for the spiral frame 16 and preventing accidental loosening.

[0034] Please see Figures 1-5 As a supplementary embodiment of a transportation equipment for electric vehicle parts production, which includes a pressing mechanism, a fixing clamping mechanism, and a clamping auxiliary mechanism: Bottom wheels 21 are installed around the bottom of the frame 1; a pulling frame 22 is installed at one end of the frame 1; a guide roller assembly 23 is installed at the top of the frame 1, and the guide roller assembly 23 is symmetrically arranged; a transverse plate 24 is installed on the side of the mounting plate 2, and one end of the hydraulic cylinder 6 is rotatably connected to the top end of the transverse plate 24; a connecting plate 25 is installed at the bottom of the side wall of the clamping pipe 8, and the connecting plate 25 is fixedly installed on one end face of the mounting plate 2; a limiting block 26 is installed at one end of the clamping rod 9, and one end of the clamping rod 9 extends through the frame 1 and the mounting plate 2 to engage with the clamping pipe 8, thus fixing the mounting plate 2 onto the frame 1; a radial rail 27 is installed at the bottom of the outer retaining ring 17, and the shrinking block 19 is radially slidably installed on the radial rail 27.

[0035] More specifically, the transport equipment is moved to the designated position via the bottom wheels 21, and the pull frame 22 is used for precise positioning. The electric vehicle parts are placed on the mounting plate 2, and the symmetrically arranged guide roller assembly 23 assists in the positioning of the parts. The locking rod 9 passes through the frame 1 and the mounting plate 2, and is inserted into the locking tube 8 through the insertion groove 11. The locking rod 9 is rotated to make the locking spring block 13 extend into the locking groove 12, realizing the initial connection between the mounting plate 2 and the frame 1. The spiral frame 16 is rotated, and the longitudinal transfer ring 15 is pushed to the accurate position through the threaded connection. The longitudinal transfer ring 15 presses against the tension spring rod 14, so that it extends into the embedding hole 10, forming a firm double lock. The hydraulic cylinder 6 is activated, and the pressure frame 3 is driven to rotate through the push frame 7 and the push rod 5 to apply a clamping force to the parts. The centripetal sliding of the shrink block 19 on the centripetal rail 27 and the support of the shrink spring 20 ensure the stability of the entire system. After the parts are fixed, the transport operation is carried out via the bottom wheels 21. After the operation is completed, the reverse operation is performed to release the clamping and locking, and the clamping assembly is taken out for maintenance.

[0036] In summary, during the use or operation of the overall equipment: when the clamping mechanism is required to operate, the clamping mechanism achieves clamping and fixing of the accessories through hydraulic drive. After the hydraulic cylinder 6 is started, it pushes the push frame 7 to move. The push frame 7 drives the push rod 5 to move through the rotation connection. The push rod 5 drives the pressing frame 3 to rotate on the support frame 4, applying clamping force to the electric vehicle accessories placed on the mounting plate 2. The transmission rod 101 connects the push rod 5 and the mounting plate 2 to ensure stable and reliable force transmission. The transverse plate 24 provides a stable connection base for the hydraulic cylinder 6. The whole process achieves precise clamping control of the accessories.

[0037] When the locking mechanism is in operation, it securely fixes the mounting plate 2 to the frame 1 through double locking. The locking rod 9 passes through the frame 1 and the mounting plate 2, and extends into the locking tube 8 through the insertion groove 11. Rotating the locking rod 9 causes the locking spring block 13 to extend into the locking groove 12, forming a preliminary lock. Then, the longitudinal moving ring 15 is pushed, and its inner wall presses against the tension spring rod 14, causing the tension spring rod 14 to extend into the embedding hole 10 on the outer wall of the locking rod 9, forming a secondary lock. The limiting block 26 prevents the locking rod 9 from completely passing through the structure, which facilitates operation and control.

[0038] When the locking auxiliary mechanism is in operation, the locking auxiliary mechanism realizes precise adjustment of the longitudinal movement ring 15 through the spiral control system. When the spiral frame 16 is rotated, the longitudinal movement ring 15 is pushed to move longitudinally through the threaded connection between the inner wall and the longitudinal movement ring 15. Multiple pairs of paired shrink blocks 19 slide centripetally on the centripetal rail 27. The shrink springs 20 between the shrink blocks 19 provide elastic support. The rotating ball block 18 passes between the pairs of shrink blocks 19 to provide stable rotational support and graded positioning for the spiral frame 16 and prevent accidental loosening.

[0039] The transport equipment is moved to the designated position using the bottom wheels 21. The pull frame 22 is used for precise positioning, and the electric vehicle parts are placed on the mounting plate 2. Symmetrically arranged guide roller assemblies 23 assist in the positioning of the parts. The locking rod 9 passes through the frame 1 and the mounting plate 2, and is inserted into the locking tube 8 through the insertion slot 11. Rotating the locking rod 9 causes the locking spring block 13 to extend into the locking slot 12, achieving a preliminary connection between the mounting plate 2 and the frame 1. Rotating the spiral frame 16 pushes the longitudinal transfer ring 15 to the accurate position through the threaded connection. The longitudinal transfer ring 15 presses against the tension spring rod 14, causing it to extend into the embedding hole 10, forming a secure double lock. The hydraulic cylinder 6 is activated, driving the pressure frame 3 to rotate through the push frame 7 and the push rod 5, applying pressure to the parts. The radial sliding of the shrink block 19 on the radial rail 27 and the support of the shrink spring 20 ensure the stability of the entire system. After the parts are fixed, the transport operation is performed using the bottom wheels 21. After the operation is completed, the reverse operation is performed to release the pressure and lock, and the pressure assembly is removed for maintenance.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A transport device for the production of electric vehicle parts, comprising a frame (1), a clamping mechanism, a fixing and clamping mechanism, and a clamping auxiliary mechanism, characterized in that: The clamping mechanism includes a mounting plate (2) and a pressing frame (3). A support frame (4) is mounted on the side of the mounting plate (2). The pressing frame (3) is rotatably mounted on the support frame (4). A push rod (5) is rotatably mounted on one end of the pressing frame (3). A hydraulic cylinder (6) is mounted on the side of the mounting plate (2). A push frame (7) is rotatably mounted on one end of the hydraulic cylinder (6). The push frame (7) and the push rod (5) are rotatably connected. Both ends of the transmission rod (101) are rotatably connected to the push rod (5) and the mounting plate (2). The fixing and clamping mechanism includes a clamp. The connector (8) and the locking rod (9) are provided. The outer wall of the locking rod (9) is provided with an embedding hole (10). The inner wall of the locking connector (8) is provided with an insertion groove (11) and a locking groove (12). The outer wall of the locking rod (9) is provided with a locking spring block (13). The locking rod (9) extends into the locking connector (8) through the insertion groove (11). The locking spring block (13) on the locking rod (9) extends into the locking groove (12) when the locking rod (9) is rotated. A tension spring rod (14) is slidably installed on the outer wall of the locking connector (8). A longitudinal sliding ring (15) is slidably installed on the outer wall of the locking connector (8).

2. The transportation equipment for electric vehicle parts production according to claim 1, characterized in that: The locking auxiliary mechanism includes a screw frame (16) and an outer retaining ring (17). The screw frame (16) is rotatably mounted on the outer wall of the locking tube (8). The inner wall of the screw frame (16) is threadedly connected to the longitudinal moving ring (15). A rotating ball block (18) is installed at the top end of the screw frame (16). The outer retaining ring (17) is fixedly mounted on the outer wall of the locking tube (8). A pair of shrinking blocks (19) is slidably mounted at the bottom end of the outer retaining ring (17). The shrinking blocks (19) are arranged in multiple pairs. A shrinking spring (20) is installed between the pairs of shrinking blocks (19). The top end of the rotating ball block (18) passes through the pairs of shrinking blocks (19) in sequence, so that the screw frame (16) rotates stably on the outer wall of the locking tube (8).

3. The transportation equipment for electric vehicle parts production according to claim 1, characterized in that: The bottom of the frame (1) is equipped with bottom wheels (21) around its perimeter, and a pull frame (22) is installed at one end of the frame (1).

4. The transportation equipment for electric vehicle parts production according to claim 1, characterized in that: The top end of the frame (1) is provided with a guide roller assembly (23), and the guide roller assembly (23) is symmetrically arranged.

5. A transport device for electric vehicle parts production according to claim 1, characterized in that: A transverse plate (24) is installed on the side of the mounting plate (2), and one end of the hydraulic cylinder (6) is rotatably connected to the top end of the transverse plate (24).

6. A transport device for electric vehicle parts production according to claim 1, characterized in that: A connecting plate (25) is installed at the bottom of the side wall of the card tube (8), and the connecting plate (25) is fixedly installed on one end face of the mounting plate (2).

7. A transport device for electric vehicle parts production according to claim 1, characterized in that: One end of the locking rod (9) is equipped with a limiting block (26), and one end of the locking rod (9) extends through the frame (1) and the mounting plate (2) to engage with the locking tube (8) to fix the mounting plate (2) on the frame (1).

8. A transport device for electric vehicle parts production according to claim 2, characterized in that: The bottom end of the outer fixed ring (17) is provided with a centripetal rail (27), and the shrink block (19) is slidably mounted on the centripetal rail (27).