Fixing clamp for spraying of electric vehicle frame

By designing a fixed fixture for electric vehicle frame painting, and using components such as motors and cylinder push rods to achieve stable clamping and angle adjustment of the frame, the problem of poor painting caused by the lack of rigid support of the suspension ropes and hooks in the existing technology is solved, thus improving painting efficiency and quality.

CN224253153UActive Publication Date: 2026-05-19FOSHAN NANHAI DISTRICTCHAOHAO HARDWARE ACCESSORIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN NANHAI DISTRICTCHAOHAO HARDWARE ACCESSORIES CO LTD
Filing Date
2025-04-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the current electric vehicle frame painting process, the hanging ropes and hooks lack rigid support, resulting in poor painting effect and the need for rework, which affects processing efficiency.

Method used

An electric vehicle frame spraying fixture was designed, comprising components such as a fixed base, a motor, a rotating base, a cylinder push rod, a rack, a fixed plate, a rotating rod, gears, a connecting plate, and a clamping rod. The motor drives the rotating base and the cylinder push rod to achieve stable clamping and angle adjustment of the frame, ensuring stability and comprehensiveness during the spraying process.

Benefits of technology

It enables all-around painting of electric vehicle frames, avoids painting dead spots, improves painting efficiency and quality, and is suitable for the processing needs of frames of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric vehicles, in particular to a fixing clamp for spraying of an electric vehicle frame. According to the technical scheme, the vehicle frame comprises a fixing base and a vehicle frame body, a motor is arranged in the fixing base, and the output end of the motor penetrates and extends to the bottom face of the fixing base and is provided with a rotating base. According to the spraying device, the frame body can be driven to rotate by arranging the fixed seat to the rotating seat, so that the frame body can be conveniently and comprehensively sprayed, the frame body does not need to be manually rotated, and the clamping rod can be driven to adjust the angle by arranging the first air cylinder push rod to the connecting plate; the frame head tube production angle adjusting device is convenient to adapt to frame head tube production angles of frame bodies of different sizes, the applicability of the device is improved, the frame bodies can be stably clamped and fixed from the interiors of the frame head tubes by arranging the fixing frame to the clamping rods, it is guaranteed that the frame bodies are kept stable in the spraying process, the whole frame bodies can be exposed to the maximum degree, and the production efficiency is improved. Spraying dead angles are reduced, and spraying efficiency and quality are improved.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle technology, and in particular to a fixing clamp for spraying electric vehicle frames. Background Technology

[0002] The electric vehicle frame is the core structure of an electric vehicle. Its main function is to support and connect various components, such as the motor, body, and battery. It is like the human skeleton, connecting these components into an organic whole and providing a stable driving platform for the electric vehicle. It plays a vital role in the stability, safety, performance, and service life of the electric vehicle.

[0003] In order to improve the protection and decoration functions of electric vehicles, the frame needs to be painted during the manufacturing process. In the existing technology, the frame is usually hung by a rope and hook before painting. However, the rope and hook do not have rigid support and are prone to rotation during the painting process, which makes the painting effect unsatisfactory and easy to rework, thus slowing down the processing efficiency. Therefore, it is necessary to propose a fixing fixture for painting electric vehicle frames. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background art by proposing a fixing clamp for spraying electric vehicle frames.

[0005] The technical solution of this utility model: A fixing clamp for spraying paint on an electric vehicle frame, comprising a fixing seat and a frame body. A motor is installed inside the fixing seat, and the output end of the motor extends through to the bottom surface of the fixing seat and is provided with a rotating seat. A cylinder push rod is provided on the bottom surface of the rotating seat, and a rack is provided at the output end of the cylinder push rod. Two fixing plates are provided on the bottom surface of the rotating seat, and a common rotating rod is rotatably mounted between the two fixing plates. A gear is provided on the outer ring of the middle end of the rotating rod, and connecting plates are provided on the outer rings of both ends of the rotating rod. The bottom surface of each connecting plate is provided with the same fixed frame. Inside the fixed frame is a second cylinder push rod. The output end of the second cylinder push rod extends through to the bottom surface of the fixed frame and is provided with a connecting block. A set of movable rods is rotatably provided on both the front and rear sides of the connecting block. A connecting rod is rotatably provided on the other end of each of the two sets of movable rods. A clamping rod is provided at the bottom end of each of the two connecting rods. The frame body includes a frame head tube. The two clamping rods are located inside the frame head tube, and the side of the two clamping rods that is far away from each other is in contact with the inner wall of the frame head tube.

[0006] Preferably, the bottom surface of the fixed seat is provided with an L-shaped annular groove, and the top surface of the rotating seat is provided with an L-shaped annular bar, the L-shaped annular bar and the L-shaped annular groove being rotatably connected.

[0007] Preferably, the top surface of the rack is slidably connected to the bottom surface of the rotating seat, the top surface of the rack is provided with a trapezoidal strip, the bottom surface of the rotating seat is provided with a trapezoidal groove, and the trapezoidal strip and the trapezoidal groove are slidably connected.

[0008] Preferably, the two fixing plates are located on the front and rear sides of the rack, respectively, and the gear is meshed with the rack.

[0009] Preferably, the connecting block is arranged in a cross shape.

[0010] Preferably, each set of movable rods is arranged in parallel, and the two sets of movable rods are arranged symmetrically in a figure-eight shape.

[0011] Preferably, the top surface of each connecting rod is slidably connected to the bottom surface of the fixing frame, the top surface of the connecting rod is provided with a T-shaped block, and the bottom surface of the fixing frame is provided with a T-shaped groove corresponding to the position of each connecting rod, and the T-shaped block and the T-shaped groove are slidably connected.

[0012] Preferably, the clamping rod is L-shaped.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This invention utilizes a fixed base, motor, and rotating base to drive the frame body to rotate, facilitating comprehensive painting of the frame body without requiring manual rotation. A cylinder push rod, rack, fixed plate, rotating rod, gear, and connecting plate allow for angle adjustment of the clamping rod, facilitating the production angle of the frame head tube for different frame body sizes and improving equipment versatility. A fixed frame, cylinder push rod, connecting block, movable rod, connecting rod, and clamping rod provide stable clamping and fixation of the frame body from within the frame head tube, ensuring stability during painting and preventing wobbling. This also maximizes the exposure of the entire frame body, reducing painting dead zones and improving painting efficiency and quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of a portion of the structure of this utility model;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure of a portion of the area.

[0019] Reference numerals in the attached drawings: 1. Fixed seat; 2. Frame body; 201. Frame head tube; 3. Motor; 4. Rotating seat; 5. Cylinder push rod one; 6. Rack; 7. Fixed plate; 8. Rotating rod; 9. Gear; 10. Connecting plate; 11. Fixed frame; 12. Cylinder push rod two; 13. Connecting block; 14. Movable rod; 15. Connecting rod; 16. Clamping rod; 17. L-shaped ring bar; 18. Trapezoidal bar; 19. T-shaped block. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example

[0022] like Figures 1 to 4 As shown, the present invention discloses a fixing fixture for spraying electric vehicle frames, comprising a fixing base 1 and a frame body 2. A motor 3 is installed inside the fixing base 1 and is fixedly mounted therein. The output end of the motor 3 extends through to the bottom surface of the fixing base 1 and is provided with a rotating seat 4. The output end of the motor 3 is rotatably connected to the bottom surface of the fixing base 1, and is fixedly connected to the top surface of the rotating seat 4. An L-shaped annular groove is formed on the bottom surface of the fixing base 1, and an L-shaped ring bar 17 is provided on the top surface of the rotating seat 4. The top surface of the rotating seat 4 is fixedly connected to the bottom surface of the L-shaped ring 17, and the L-shaped ring 17 is rotatably connected to the L-shaped ring groove. The L-shaped ring groove can guide and limit the running trajectory of the L-shaped ring 17, thereby ensuring the stability and smoothness of the rotating seat 4. The bottom surface of the rotating seat 4 is provided with a cylinder push rod 5, and the bottom surface of the rotating seat 4 is fixedly connected to the bottom surface of the cylinder push rod 5. The output end of the cylinder push rod 5 is provided with a rack 6, and the output end of the cylinder push rod 5 is fixedly connected to the left side of the rack 6.

[0023] The top surface of rack 6 is slidably connected to the bottom surface of rotating seat 4. A trapezoidal strip 18 is provided on the top surface of rack 6, and the top surface of rack 6 is fixedly connected to the bottom surface of trapezoidal strip 18. A trapezoidal groove is provided on the bottom surface of rotating seat 4, and trapezoidal strip 18 is slidably connected to the trapezoidal groove. The trapezoidal groove can guide and limit the running trajectory of trapezoidal strip 18, thereby guiding and limiting the running trajectory of rack 6, ensuring that rack 6 always maintains a straight running state, and preventing rack 6 from falling off the bottom surface of rotating seat 4. The bottom surface of the rotating seat 4 is provided with two fixed plates 7. The bottom surface of the rotating seat 4 is fixedly connected to the top surface of the fixed plates 7. The two fixed plates 7 are located on the front and rear sides of the rack 6 respectively. The same rotating rod 8 is rotatably arranged between the two fixed plates 7. The fixed plates 7 can provide stable support for the rotating rod 8. A gear 9 is provided on the outer ring of the middle end of the rotating rod 8. The outer ring of the middle end of the rotating rod 8 is fixedly connected to the inner ring of the gear 9. The gear 9 is meshed with the rack 6. The meshing arrangement facilitates the transmission between the two.

[0024] Both ends of the rotating rod 8 are provided with connecting plates 10. The outer rings of the rotating rod 8 are fixedly connected to the inner rings of the connecting plates 10. The rotation of the rotating rod 8 can drive the connecting plates 10 to rotate. The bottom surfaces of the two connecting plates 10 are provided with the same fixing frame 11. The bottom surfaces of the connecting plates 10 are fixedly connected to the top surfaces of the fixing frame 11. The output end of the cylinder push rod 5 can drive the rack 6 to move. The movement of the rack 6 can drive the gear 9 to rotate. The rotation of the gear 9 can drive the rotating rod 8 to rotate. The connecting plate 10 can be rotated, and the rotation of the connecting plate 10 can drive the fixed frame 11 to rotate. The rotation of the fixed frame 11 can drive the clamping rod 16 to rotate to the same tilt angle as the head tube 201 of the frame. The fixed frame 11 is equipped with a cylinder push rod 12. The cylinder push rod 12 is fixedly installed inside the fixed frame 11. The output end of the cylinder push rod 12 extends through to the bottom surface of the fixed frame 11 and is equipped with a connecting block 13. The output end of the cylinder push rod 12 is slidably connected to the bottom surface of the fixed frame 11.

[0025] The output end of cylinder push rod 12 is fixedly connected to the top surface of connecting block 13. Connecting block 13 is cross-shaped. A set of movable rods 14 is rotatably mounted on both the front and rear sides of connecting block 13. Each set of movable rods 14 is parallel to the others and symmetrically arranged in a figure-eight pattern to facilitate adjustment of the distance between the two connecting rods 15. Connecting rods 15 are rotatably mounted on the other end of each set of movable rods 14. The top surface of each connecting rod 15 is slidably connected to the bottom surface of fixed frame 11. The top surface of the connecting rod 15 is... There is a T-shaped block 19, and the top surface of the connecting rod 15 is fixedly connected to the bottom surface of the T-shaped block 19. The bottom surface of the fixing frame 11 is provided with a T-shaped groove corresponding to the position of each connecting rod 15. The T-shaped block 19 is slidably connected to the T-shaped groove. The T-shaped groove can guide and limit the T-shaped block 19, thereby guiding and limiting the running trajectory of the connecting rod 15, so that the connecting rod 15 always maintains a straight running state. The bottom end of each of the two connecting rods 15 is provided with a clamping rod 16, and the bottom end of the connecting rod 15 is fixedly connected to the clamping rod 16.

[0026] The clamping rod 16 is L-shaped, which facilitates dragging the bottom end of the frame head tube 201 on the ground and ensures the stability of the clamping. The frame body 2 includes the frame head tube 201. The two clamping rods 16 are located inside the frame head tube 201, and the side of the two clamping rods 16 that is far away from each other is in contact with the inner wall of the frame head tube 201. The side of the clamping rod 16 that is in contact with the frame head tube 201 is arc-shaped, which facilitates better contact and increases the stability of the clamping.

[0027] In this embodiment, when using this device, the tilt angle of the clamping rod 16 can be adjusted according to the angle of the head tube 201 of the frame. The cylinder push rod 5 can be operated, and the output end of the cylinder push rod 5 drives the rack 6 to move. The movement of the rack 6 drives the gear 9 to rotate, the rotation of the gear 9 drives the rotating rod 8 to rotate, the rotation of the rotating rod 8 drives the connecting plate 10 to rotate, and the rotation of the connecting plate 10 drives the fixed frame 11 to rotate. This allows the clamping rod 16 to be adjusted to a suitable angle with the head tube 201 of the frame. Then, the two... The clamping rod 16 is inserted into the interior of the frame head tube 201. Then, the connecting block 13 is moved downward by the second push rod 12 of the operating cylinder, which causes the two sets of movable rods 14 to push the connecting rod 15 to the sides, thereby causing the two clamping rods 16 to move away from each other, thus clamping and fixing the frame head tube 201 from the inside. Then, the motor 3 can be run during the painting process. The output end of the motor 3 drives the rotating seat 4 to rotate, which can drive the structure on the rotating seat 4 to rotate as a whole, thereby driving the frame body 2 to rotate as a whole, which facilitates the painting process.

[0028] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A fixing fixture for spraying paint on an electric vehicle frame, comprising a fixing base (1) and a frame body (2), characterized in that: The fixed base (1) is equipped with a motor (3). The output end of the motor (3) extends through to the bottom surface of the fixed base (1) and is provided with a rotating base (4). The bottom surface of the rotating base (4) is provided with a cylinder push rod (5). The output end of the cylinder push rod (5) is provided with a rack (6). The bottom surface of the rotating base (4) is provided with two fixed plates (7). The same rotating rod (8) is rotatably arranged between the two fixed plates (7). The outer ring of the middle end of the rotating rod (8) is provided with a gear (9). The outer rings of both ends of the rotating rod (8) are provided with connecting plates (10). The bottom surface of the two connecting plates (10) is provided with the same fixing frame (11). The frame (11) is provided with a cylinder push rod two (12). The output end of the cylinder push rod two (12) extends through to the bottom surface of the fixed frame (11) and is provided with a connecting block (13). A set of movable rods (14) are rotatably provided on both the front and rear sides of the connecting block (13). A connecting rod (15) is rotatably provided at the other end of the two sets of movable rods (14). A clamping rod (16) is provided at the bottom end of the two connecting rods (15). The frame body (2) includes a frame head tube (201). The two clamping rods (16) are located inside the frame head tube (201), and the side of the two clamping rods (16) that is far away from each other is in contact with the inner wall of the frame head tube (201).

2. The fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, The bottom surface of the fixed seat (1) is provided with an L-shaped annular groove, and the top surface of the rotating seat (4) is provided with an L-shaped ring bar (17), which is rotatably connected to the L-shaped annular groove.

3. The fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, The top surface of the rack (6) is slidably connected to the bottom surface of the rotating seat (4). The top surface of the rack (6) is provided with a trapezoidal strip (18), and the bottom surface of the rotating seat (4) is provided with a trapezoidal groove. The trapezoidal strip (18) is slidably connected to the trapezoidal groove.

4. The fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, The two fixing plates (7) are located on the front and rear sides of the rack (6) respectively, and the gear (9) is meshed with the rack (6).

5. A fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, The connecting block (13) is arranged in a cross shape.

6. The fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, Each set of movable rods (14) is arranged in parallel, and the two sets of movable rods (14) are arranged symmetrically in a figure-eight shape.

7. The fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, The top surface of each connecting rod (15) is slidably connected to the bottom surface of the fixed frame (11). A T-shaped block (19) is provided on the top surface of the connecting rod (15). A T-shaped groove is provided on the bottom surface of the fixed frame (11) at the position corresponding to each connecting rod (15). The T-shaped block (19) is slidably connected to the T-shaped groove.

8. The fixing clamp for spraying paint on an electric vehicle frame according to claim 1, characterized in that, The clamp (16) is L-shaped.