Auxiliary device for laying semitrailer bottom plate

Abstract

The utility model relates to the technical field of automobile manufacturing equipment, in particular to a semitrailer bottom plate laying auxiliary device which comprises two moving frames, a limiting plate is connected between the two moving frames in a sliding mode, one side of the top of each moving frame is fixedly connected with a supporting frame, an electric push rod is installed on each supporting frame, and the electric push rod is connected with the limiting plate in a sliding mode. A connecting plate is arranged at the top end of a movable rod of the electric push rod, and a pressing frame is rotationally installed on the connecting plate. Through cooperation of the pressing frame driven by the electric push rod and the abutting plate supported by the air cylinder, uniform pressure can be applied to the bottom plate, it is ensured that the bottom plate is kept flat in the high-temperature welding process, warping or bending caused by thermal deformation is effectively avoided, welding between the bottom plate and the base plate is tighter, the connection strength between the bottom plate and the base plate is enhanced, and the service life of the base plate is prolonged. And the overall structural stability and safety of the vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing equipment, in particular to an auxiliary device for laying a bottom plate of a semi-trailer. Background Art

[0002] In the logistics and transportation industry, semi-trailers are one of the main means of transporting goods. Their structural strength and durability are directly related to transportation efficiency and safety. The bottom plate of a semi-trailer, as an important component for carrying goods, is usually made of metal plates or composite materials and needs to be firmly installed on the frame by welding or other fixing methods to ensure stability and reliability under various complex road conditions.

[0003] At present, during the laying process of traditional semi-trailer floors, due to the lack of effective clamping auxiliary equipment, the floors are easily warped or deformed by thermal deformation or external forces during welding. This not only affects the welding quality, but may also lead to a loose connection between the floor and the frame, thereby affecting the overall performance and safety of the vehicle. In addition, the deformation of the floor will increase the workload of subsequent processing and adjustment, reduce production efficiency, and increase manufacturing costs.

[0004] In order to address the above problems, the market urgently needs an auxiliary device that can effectively solve the deformation problem during the base plate laying process. Utility Model Content

[0005] In order to overcome the problem of welding deformation caused by the lack of effective pressing and supporting means during the traditional base plate laying process, the utility model provides an auxiliary device that can effectively solve the deformation problem during the base plate laying process.

[0006] To solve the above problem, the utility model adopts the following technical solution: a semi-trailer floor laying auxiliary device, including a mobile frame, a total of two mobile frames, a limiting plate is slidably connected between the two mobile frames, a support frame is fixedly connected to one side of the top of each mobile frame, an electric push rod is installed on the support frame, a connecting plate is provided on the top of the movable rod of the electric push rod, a clamping frame is rotatably installed on the connecting plate, a cylinder is installed on the other side of the top of each mobile frame, a square telescopic cylinder is fixedly connected to the middle position of the top of each mobile frame, a push plate is slidably provided on each square telescopic cylinder, and the push plate is connected to the telescopic rod of the cylinder.

[0007] Furthermore, one of the movable frames is fixedly connected to support bases on both sides, a rotating shaft is rotatably mounted on the upper portion of the support base, and a flame-retardant asbestos roll is sleeved on the rotating shaft.

[0008] Furthermore, both side surfaces of the support frame are fixedly connected with L-shaped telescopic cylinders, and a lifting block is slidably provided inside the L-shaped telescopic cylinder, and a thread on the lifting block passes through a limiting screw.

[0009] Furthermore, a plurality of latch holes are provided on both sides of the limit plate, and the same latch holes are also provided on both sides of the connection between the movable frame and the limit plate, and a latch rod is inserted into the latch holes aligned with the movable frame.

[0010] Furthermore, a friction plate is provided at one end of the limiting screw that contacts the bottom plate.

[0011] Furthermore, both ends of the flame retardant asbestos roll are sleeved with fixing rings.

[0012] Compared with the existing technology, the utility model has the following technical effects: 1. The combination of the clamping frame driven by the electric push rod and the abutment plate supported by the cylinder can apply uniform pressure to the base plate, ensuring that the base plate remains flat during high-temperature welding, effectively avoiding warping or bending caused by thermal deformation, making the welding between the base plate and the chassis tighter, enhancing the connection strength between the two, and improving the overall structural stability and safety of the vehicle.

[0013] 2. By adding flame-retardant asbestos rolls, important components on the chassis can be covered before welding, avoiding damage or fire risks caused by electric sparks and metal spatter generated during the welding process. This not only protects the vehicle's key systems from direct damage, but also reduces potential safety hazards, ensuring the safety of operators and equipment.

[0014] 3. A side limit device is formed by the L-shaped telescopic cylinder, lifting block and limit screw, which provides effective side limit for the base plate and ensures the position accuracy of the base plate during welding. Especially when welding the side of the base plate, more precise operation can be achieved, avoiding welding deviation caused by base plate movement, and improving welding quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic three-dimensional cross-sectional structural diagram of the movable frame, the limiting plate and the supporting frame of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional structural diagram of the L-shaped telescopic cylinder, lifting block and limiting screw of the utility model.

[0018] Among them, the above-mentioned drawings include the following figure marks: 1. Mobile frame, 2. Limiting plate, 3. Support frame, 4. Electric push rod, 5. Connecting plate, 6. Pressing frame, 7. Cylinder, 8. Square telescopic cylinder, 9. Abutment plate, 10. Support seat, 11. Rotating shaft, 12. Flame-retardant asbestos roll, 13. L-shaped telescopic cylinder, 14. Lifting block, 15. Limiting screw, 16. Clamping rod, 17. Clamping hole, 18. Friction plate, 19. Fixed ring. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0020] Example 1: Please refer to Figure 1 and Figure 2 When the jack is lifted up, the jack is lifted up and down, and the jack is lifted up to the limit of the limit, so that the jack is lifted up and down, and the jack is lifted up and down, thereby ensuring the stability of the jack.

[0021] When the device is used, first, the pressing frame 6 is rotated outward with the connecting plate 5 as the center and moved away to provide enough space for the subsequent device positioning and bottom plate placement. Then, the entire auxiliary device is placed under the semi-trailer chassis. The specific position needs to be determined according to the installation area of ​​the bottom plate, and according to the actual width of the semi-trailer chassis, the distance between the two mobile frames 1 is manually adjusted to make the distance between the two support plates 9 appropriate to ensure that the bottom plate can be stably supported. Then, the bottom plate is placed on the semi-trailer chassis and the cylinder 7 is started. The telescopic rod of the cylinder 7 drives the support plate 9 located in the square telescopic cylinder 8 to move upward until the support plate 9 contacts the bottom of the bottom plate and applies appropriate support. The support force ensures that the base plate is stable, and then the clamping frame 6 is reset to its original position so that it is located on the top of the base plate, and the electric push rod 4 is started. The movable rod of the electric push rod 4 drives the clamping frame 6 to move downward, and cooperates with the abutment plate 9 to tightly press the parts of the base plate that are easily deformed, ensuring that the base plate remains flat during the welding process and will not be displaced or warped. The welding operation of the base plate and the frame is carried out in the clamped state, which can effectively ensure that the welding quality is not affected by the deformation of the base plate, improve the firmness of the connection and the safety of the vehicle. After the welding is completed, the electric push rod 4 and the cylinder 7 are turned off to release the clamping and support of the base plate, and the clamping frame 6 is moved to the next base plate installation position to prepare for the next round of operations.

[0022] Example 2: Based on Example 1, please refer to Figure 2 The front and rear sides of the mobile frame 1 on the right side are fixed with a support base 10, and a rotating shaft 11 is rotatably installed on the upper part of the support base 10. A flame-retardant asbestos roll 12 is sleeved on the rotating shaft 11. The flame-retardant asbestos roll 12 has good fireproof and flame-retardant properties. During welding, it can directly cover and protect the chassis components for fireproof and flame-retardant protection. The left and right ends of the flame-retardant asbestos roll 12 are sleeved with fixing rings 19, whose main function is to fix the flame-retardant asbestos roll 12 to prevent it from loosening when not in use.

[0023] Before welding, remove the fixing ring 19, then pull out one end of the flame retardant asbestos roll 12 and cover the important parts of the chassis, ensuring that the flame retardant asbestos roll 12 covers the key parts that are easily affected by welding, such as electrical lines, hydraulic pipelines, etc. This can effectively prevent the electric sparks and spatters generated during welding from damaging these parts, not only protecting the key systems of the vehicle from direct damage, but also reducing potential safety hazards, ensuring the safety of operators and equipment.

[0024] See also Figure 3The support frame 3 is fixedly connected to the front and rear sides with an L-shaped telescopic cylinder 13, and a lifting block 14 is slidingly arranged inside the L-shaped telescopic cylinder 13. A limit screw 15 for limiting the position of the base plate is threaded through the lifting block 14. A friction plate 18 is provided at one end of the limit screw 15 that contacts the base plate, which increases the friction coefficient and provides sufficient friction to ensure that the limit screw 15 can firmly fix the side of the base plate.

[0025] Before the base plate is tightened, the lifting block 14 in the L-shaped telescopic cylinder 13 is pulled upward to make it flush with the side of the base plate. Then, the limiting screw 15 is rotated to make it approach and contact the side of the base plate to limit the side of the base plate. At the same time, the friction plate 18 provides sufficient friction to enable the limiting screw 15 to effectively fix the side of the base plate, preventing the base plate from moving laterally during the tightening process, and at the same time improving the accuracy of the welding position of the side of the base plate to ensure the welding quality.

[0026] See also Figure 3 , six card holes 17 are opened on the front and rear sides of the limiting plate 2, and the same card holes 17 are also opened on the front and rear sides of the connection between the mobile frame 1 and the limiting plate 2. The card holes 17 aligned with the limiting plate 2 and the mobile frame 1 are plugged with a card rod 16. The cooperation between the card rod 16 and the card hole 17 ensures that the mobile frame 1 is firmly fixed at different widths.

[0027] When the position of the mobile frame 1 is to be adjusted, the clamping rod 16 is pulled outward to completely disengage it from the clamping hole 17 on the limit plate 2 and the mobile frame 1. At this time, the mobile frame 1 can slide freely to adjust its position. When the adjustment of the mobile frame 1 is completed, the clamping rod 16 is inserted into the clamping hole 17 aligned with the limit plate 2 and the mobile frame 1 to complete the fixation of the mobile frame 1 and prevent the mobile frame 1 from being arbitrarily contracted or expanded during subsequent operations.

[0028] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A semi-trailer floor paving auxiliary device, comprising a movable frame (1), wherein the movable frames (1) are two in total, and a limit plate (2) is slidably connected between the two movable frames (1), and wherein the device is characterized in that: A support frame (3) is fixedly connected to one side of the top of each mobile frame (1), an electric push rod (4) is installed on the support frame (3), a connecting plate (5) is provided at the top of the movable rod of the electric push rod (4), a pressing frame (6) is rotatably installed on the connecting plate (5), a cylinder (7) is installed on the other side of the top of each mobile frame (1), a square telescopic cylinder (8) is fixedly connected to the middle position of the top of each mobile frame (1), a push plate (9) is slidably provided on each square telescopic cylinder (8), and the push plate (9) is connected to the telescopic rod of the cylinder (7).

2. A semi-trailer floor laying auxiliary device according to claim 1, characterized in that: one Both sides of the movable frame (1) are fixedly connected with support seats (10), the upper part of the support seat (10) is rotatably mounted with a rotating shaft (11), and the rotating shaft (11) is sleeved with a flame-retardant asbestos roll (12).

3. The semi-trailer floor laying auxiliary device according to claim 2, characterized in that: An L-shaped telescopic cylinder (13) is fixedly connected to both side surfaces of the support frame (3), a lifting block (14) is slidably provided inside the L-shaped telescopic cylinder (13), and a thread on the lifting block (14) passes through a limiting screw (15).

4. A semi-trailer floor laying auxiliary device according to claim 3, characterized in that: A plurality of latching holes (17) are provided on both sides of the limit plate (2), and the same latching holes (17) are also provided on both sides of the connection between the movable frame (1) and the limit plate (2). A latching rod (16) is inserted into the latching holes (17) aligned with the movable frame (1).

5. The semi-trailer floor laying auxiliary device according to claim 4, characterized in that: A friction plate (18) is provided at one end of the limiting screw (15) that contacts the bottom plate.

6. The semi-trailer floor laying auxiliary device according to claim 5, characterized in that: Both ends of the flame-retardant asbestos roll (12) are sleeved with fixing rings (19).

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