Loading and unloading trolley for vehicle body welding production line

Abstract

The utility model discloses an on-line and off-line trolley for a vehicle body welding production line, which belongs to the technical field of automobile production and comprises a platform trailer, the upper surface of the platform trailer is connected with a fence frame, a cover plate is arranged above the fence frame, a telescopic support frame is arranged below the cover plate, a sliding rail is mounted on the lower surface of the cover plate, and a sliding groove is formed in the lower surface of the sliding rail. A sliding way is arranged outside the sliding rail, a hydraulic oil cylinder is arranged outside the enclosure frame, the enclosure frame, the cover plate and the hydraulic oil cylinder are matched, the hydraulic oil cylinder serves as a power source, power is provided for the moving position of the cover plate, the cover plate is pushed to move, and the moving position of the cover plate is guided through the sliding rail and the sliding way. The stability of the cover plate in the moving process is kept, the automobile body is wrapped through the enclosure frame and the cover plate, external rainwater is prevented from making contact with the automobile body, the dryness of the automobile body is kept, and the automobile body can be conveniently machined in the next production link.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production, and particularly relates to an up-and-down line trolley for a body welding production line. Background Technique

[0002] The up-and-down line trolley for a body welding production line is a device for transporting a vehicle body or vehicle body parts. They are usually composed of a vehicle frame, rollers, a vehicle body support plate, a traction device, etc. The welded vehicle body or vehicle body parts are transported to the next production link through the up-and-down line trolley for a body welding production line, realizing the up-and-down line transfer of the vehicle body, reducing manual operation, shortening the production cycle, and maintaining the consistency of welding quality.

[0003] When producing a motorhome, since most motorhomes are customized according to customer needs, the vehicle body structure of the motorhome cannot be mass-produced, and the production line for the motorhome body cannot be automated. After the motorhome body is welded, it is necessary to transport the vehicle body to the next production link, and it is necessary to transport the vehicle body from the welding workshop to another workshop for processing. Most use flatbed trailers for transportation. When the weather is fine, using a flatbed trailer to transport the vehicle body is not affected, but in rainy weather, the vehicle body is easily drenched with water during transportation, resulting in rust on the transported vehicle body and affecting the next production link. To solve this technical problem, the utility model proposes an up-and-down line trolley for a body welding production line. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an up-and-down line trolley for a body welding production line, which can effectively solve the problems mentioned in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An up-and-down line trolley for a body welding production line includes a flatbed trailer. A retaining frame is connected to the upper surface of the flatbed trailer. A cover plate is arranged above the retaining frame. A telescopic support frame is arranged below the cover plate. A slide rail is installed on the lower surface of the cover plate. A slideway is arranged outside the slide rail. A hydraulic cylinder is arranged outside the retaining frame.

[0007] Preferably, one side of the slideway is connected to one side of the retaining frame. A plurality of rollers are rotatably connected to the inner wall of the slide rail. The plurality of rollers are arranged at equal intervals. The outer surfaces of the plurality of rollers are in sliding contact with the inner wall of the slideway.

[0008] Preferably, one end of the slideway is connected to a support seat. The fixed end of the hydraulic cylinder is connected to one side of the support seat. A support plate is connected to the lower surface of the cover plate. The output end of the hydraulic cylinder is connected to one side of the support plate.

[0009] Preferably, a first base is connected to the outer surface of the enclosure frame, one end of the telescopic support frame is rotatably connected to the inner wall of the first base, a second base is connected to the lower surface of the cover plate, and the other end of the telescopic support frame is rotatably connected to the inner wall of the second base.

[0010] Preferably, the cover plate has a curved arc, a retaining ring is connected to the upper surface of the cover plate, and the retaining ring is located at the edge position of the cover plate. One side of the retaining ring is connected to a drain pipe, and the drain pipe is communicated with the inside of the retaining ring.

[0011] Preferably, a towing hook is connected to one side of the enclosure frame, and a hook is connected to the other side of the enclosure frame.

[0012] Preferably, an inlet and outlet is formed on the inner side of the enclosure frame, and a closing door is hinged to the outer surface of the enclosure frame, and the closing door is symmetrical to the inlet and outlet.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, through the cooperation among the enclosure frame, the cover plate and the hydraulic cylinder, with the hydraulic cylinder as the power source, power is provided for the cover plate to move its position, and the cover plate is pushed to move its position. The slide rail and the slideway are used to guide the moving position of the cover plate to maintain the stability of the cover plate during movement. The enclosure frame and the cover plate wrap the vehicle body to block the external rainwater from contacting the vehicle body, keep the vehicle body dry, and facilitate the processing of the vehicle body in the next production link.

[0015] In the utility model, through the cooperation among the slide rail, the roller and the slideway, the slide rail contacts the slideway through the roller, reducing the friction between the slide rail and the slideway, increasing the service life of the slide rail and the slide block, and making it more convenient for the cover plate to drive the slide rail to move its position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of an upper and lower line trolley for a vehicle body welding production line of the utility model;

[0017] Figure 2 is the structural schematic diagram of the inlet and outlet in an upper and lower line trolley for a vehicle body welding production line of the utility model;

[0018] Figure 3 is the main structural schematic diagram of an upper and lower line trolley for a vehicle body welding production line of the utility model;

[0019] Figure 4 is the overall three-dimensional structural schematic diagram of the hydraulic cylinder in an upper and lower line trolley for a vehicle body welding production line of the utility model;

[0020] Figure 5 is the internal structural schematic diagram of the slide rail in an upper and lower line trolley for a vehicle body welding production line of the utility model;

[0021] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the telescopic support frame in the upper and lower line trolley for a body welding production line of the present utility model.

[0022] In the figure: 1, flatbed trailer; 2, enclosing frame; 3, cover plate; 4, telescopic support frame; 5, slide rail; 6, slideway; 7, hydraulic cylinder; 8, roller; 9, support seat; 10, support plate; 11, base one; 12, base two; 13, retaining ring; 14, drain pipe; 15, towing hook; 16, hook; 17, inlet and outlet; 18, closing door. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As Figure 1-6 shown, an upper and lower line trolley for a body welding production line includes a flatbed trailer 1. The upper surface of the flatbed trailer 1 is connected with an enclosing frame 2. A cover plate 3 is arranged above the enclosing frame 2. The enclosing frame 2 is used to block the outside of the body, and the cover plate 3 is used to block above the body to prevent rain from wetting the body and keep the body dry.

[0025] Below the cover plate 3 is provided with a telescopic support frame 4. The outer surface of the enclosing frame 2 is connected with a base one 11. The inner wall of the base one 11 is rotationally connected with one end of the telescopic support frame 4. The lower surface of the cover plate 3 is connected with a base two 12. The inner wall of the base two 12 is rotationally connected with the other end of the telescopic support frame 4. After the cover plate 3 moves from the enclosing frame 2 to the outside, in order to maintain the stability of the cover plate 3, the telescopic support frame 4 provides a supporting force for the cover plate 3. The telescopic support frame 4 is two flat plates, and the two flat plates are extended and shortened through telescoping, reducing the occupied space when not supporting the cover plate 3. The base one 11 provides a supporting force for the telescopic support frame 4, and the cover plate 3 receives the supporting force of the telescopic support frame 4 through the base two 12. There are two telescopic support frames 4 in total, and the two telescopic support frames 4 can provide more stable support for the cover plate 3.

[0026] The lower surface of the cover plate 3 is provided with a slide rail 5, and a slideway 6 is arranged outside the slide rail 5. The slide rail 5 and the slideway 6 are used to guide the moving direction of the cover plate 3 and maintain the stability of the cover plate 3 in the moving position. One side of the slideway 6 is connected to one side of the enclosure frame 2. A plurality of rollers 8 are rotatably connected to the inner wall of the slide rail 5. The plurality of rollers 8 are arranged at equal distances. The outer surfaces of the plurality of rollers 8 are in sliding contact with the inner wall of the slideway 6. The slide rail 5 contacts the slideway 6 through the rollers 8, reducing the friction between the slide rail 5 and the slideway 6 and making it more convenient for the slide rail 5 to move. There are two slide rails 5 and two slideways 6, which are respectively located on both sides of the enclosure frame 2, maintaining the smoothness of the cover plate 3 when moving through the two slide rails 5 and two slideways 6.

[0027] A hydraulic cylinder 7 is arranged outside the enclosure frame 2. One end of the slideway 6 is connected to a support seat 9. The fixed end of the hydraulic cylinder 7 is connected to one side of the support seat 9. A support plate 10 is connected to the lower surface of the cover plate 3. The output end of the hydraulic cylinder 7 is connected to one side of the support plate 10. The support seat 9 provides a support force for the hydraulic cylinder 7, and the hydraulic cylinder 7 provides a thrust for the cover plate 3 to move, pushing the cover plate 3 to move. The cover plate 3 receives the thrust of the hydraulic cylinder 7 through the support plate 10.

[0028] The cover plate 3 has a curved arc. A retaining ring 13 is connected to the upper surface of the cover plate 3, and the retaining ring 13 is located at the edge of the cover plate 3. One side of the retaining ring 13 is connected to a drain pipe 14, and the drain pipe 14 is internally connected to the retaining ring 13. The cover plate 3 can prevent water accumulation through the curved arc, enabling rainwater to flow away quickly after contacting the cover plate 3. The retaining ring 13 can block rainwater from flowing downward along the edge of the cover plate 3, blocking the rainwater inside the retaining ring 13 and discharging it to the outside through the drain pipe 14.

[0029] A towing hook 15 is connected to one side of the enclosure frame 2, and a hook 16 is connected to the other side of the enclosure frame 2. By docking the towing hook 15 with the hook 16 on another flatbed trailer 1 and docking the hook 16 with the towing hook 15 on another flatbed trailer 1, the connection between the flatbed trailer 1 and the flatbed trailer 1 is realized, enabling multiple trailers to move during a single towing process and improving the towing efficiency.

[0030] An inlet / outlet 17 is opened on the inner side of the enclosure frame 2. A closing door 18 is hinged to the outer surface of the enclosure frame 2, and the closing door 18 is symmetrical to the inlet / outlet 17. The enclosure frame 2 is internally and externally connected through the inlet / outlet door, facilitating the entry of staff into the enclosure frame 2 for cleaning and maintenance of the inside of the enclosure frame 2.

[0031] It should be noted that during the actual use of this device, first, the vehicle body is loaded into the interior of the enclosure frame 2. Subsequently, the hydraulic cylinder 7 is activated, and the hydraulic cylinder 7 drives the cover plate 3 to move. Then, the cover plate 3 covers the upper part of the enclosure frame 2, wrapping the vehicle body and blocking the external rainwater from entering the interior of the enclosure frame 2 and contacting the vehicle body. While the cover plate 3 moves, it drives the rollers 8 to rotate inside the slideway 6, and at the same time, the telescopic support frame 4 contracts in a folding manner. When it is necessary to open the cover plate 3, the operation is vice versa.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A loading and unloading trolley for a car body welding production line, comprising a flatbed trailer (1), characterized in that: The upper surface of the flatbed trailer (1) is connected to an enclosure frame (2), a cover plate (3) is arranged above the enclosure frame (2), a telescopic support frame (4) is arranged below the cover plate (3), a slide rail (5) is installed on the lower surface of the cover plate (3), a slideway (6) is arranged outside the slide rail (5), and a hydraulic cylinder (7) is arranged outside the enclosure frame (2).

2. The loading and unloading trolley for a car body welding production line according to claim 1, characterized in that: One side of the slideway (6) is connected to one side of the enclosure frame (2); the inner wall of the slide rail (5) is rotatably connected to a plurality of rollers (8); the plurality of rollers (8) are arranged at equal distances; and the outer surfaces of the plurality of rollers (8) are in sliding contact with the inner wall of the slideway (6).

3. The loading and unloading trolley for a car body welding production line according to claim 1, characterized in that: One end of the slideway (6) is connected to a support seat (9), a fixed end of the hydraulic cylinder (7) is connected to one side of the support seat (9), a lower surface of the cover plate (3) is connected to a support plate (10), and an output end of the hydraulic cylinder (7) is connected to one side of the support plate (10).

4. The loading and unloading trolley for a car body welding production line according to claim 1, characterized in that: The outer surface of the enclosure frame (2) is connected to a base 1 (11), the inner wall of the base 1 (11) is rotatably connected to one end of the telescopic support frame (4), and the lower surface of the cover plate (3) is connected to a base 2 (12), the inner wall of the base 2 (12) is rotatably connected to the other end of the telescopic support frame (4).

5. The loading and unloading trolley for a car body welding production line according to claim 1, characterized in that: The cover plate (3) has a curved arc, a retaining ring (13) is connected to the upper surface of the cover plate (3), and the retaining ring (13) is located at the edge of the cover plate (3), a drainage pipe (14) is connected to one side of the retaining ring (13), and the drainage pipe (14) is communicated with the inside of the retaining ring (13).

6. The loading and unloading trolley for a car body welding production line according to claim 1, characterized in that: One side of the enclosure frame (2) is connected to a traction hook (15), and the other side of the enclosure frame (2) is connected to a hook (16).

7. The loading and unloading trolley for a car body welding production line according to claim 1, characterized in that: An inlet and outlet (17) is provided on the inner side of the enclosure frame (2), and a closed door (18) is hingedly connected to the outer surface of the enclosure frame (2), and the closed door (18) is symmetrical to the inlet and outlet (17).

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