Automobile shell conveying and fixing mechanism of automobile production line

Abstract

The utility model discloses an automobile shell conveying fixing mechanism of automobile production line, including conveying seat, inner chamber, four conveying wheels and limiting mechanism, the inner chamber sets up in conveying seat, four the conveying wheel all sets up in the bottom of conveying seat, the limiting mechanism includes pivot, worm wheel, worm and servo motor, the pivot rotation is connected between the inner top and inner bottom of inner chamber, the worm wheel fixed mounting is on the outer wall of pivot, the worm rotation is connected between the both sides inner wall of inner chamber, the worm is engaged with worm wheel and is connected, one end of worm penetrates one side inner wall of inner chamber and is fixedly connected with the output shaft of servo motor. The utility model discloses through servo motor makes worm wheel rotate, and then through the circular disc upper arc line groove drive four groups of connecting rods synchronous movement, make four fixed plates can gather to the center or scatter simultaneously, realize the quick centering and clamping of automobile shell, greatly improved the automation efficiency and the running stability of production line.

Description

Technical Field

[0001] This utility model relates to the field of vehicle body conveying technology, and in particular to a vehicle body conveying and fixing mechanism for an automobile production line. Background Technology

[0002] In modern automobile production lines, the efficient and stable transport of car body shells is a fundamental aspect of ensuring overall production pace and process quality. After being formed in the stamping workshop, these large and relatively thin body shells must pass through multiple stations, including welding, assembly, and inspection.

[0003] In automobile manufacturing production lines, the conveying and securing of the car body shell is a crucial step connecting processes such as stamping, welding, and painting. Traditional securing methods often employ simple mechanical limits. During the conveying process, especially during start-up and stop phases, the car body shell is prone to slippage or vibration, which may lead to relative displacement between components, affecting subsequent robotic welding or assembly, and impacting production quality and efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a car body conveying and fixing mechanism for an automobile production line.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A car body conveying and fixing mechanism for an automobile production line includes a conveyor seat, an inner cavity, four conveyor wheels, and a limiting mechanism. The inner cavity is disposed within the conveyor seat, and the four conveyor wheels are all disposed at the bottom of the conveyor seat. The limiting mechanism includes a rotating shaft, a worm gear, a worm, and a servo motor. The rotating shaft is rotatably connected between the inner top and inner bottom of the inner cavity. The worm gear is fixedly mounted on the outer wall of the rotating shaft. The worm is rotatably connected between the two inner walls of the inner cavity and meshes with the worm gear. One end of the worm penetrates one inner wall of the inner cavity and is fixedly connected to the output shaft of the servo motor.

[0006] Preferably, a disc located above the worm gear is fixedly installed on the outer wall of the rotating shaft. The disc has four auxiliary slots, and a round rod that is slidably connected to each of the four auxiliary slots is inserted through each of the four auxiliary slots. A fixing block is fixedly installed on the top of each of the four round rods.

[0007] Preferably, the top of the conveyor seat is provided with four mounting slots that communicate with the inner cavity, each of the four mounting slots has a movable block that passes through it, the top of each of the four movable blocks is fixedly installed with a fixing plate, and the four movable blocks are respectively fixedly connected to the four fixing blocks.

[0008] Preferably, guide rods are fixedly connected between the inner walls of the two ends of the four mounting slots, and the four movable blocks are slidably fitted onto the four guide rods respectively.

[0009] Preferably, the four movable blocks are respectively adapted to the four mounting slots.

[0010] Preferably, all four auxiliary grooves are arc-shaped.

[0011] The beneficial effects of this utility model are: This invention uses a servo motor to rotate a worm gear, which in turn drives four sets of connecting rods to move synchronously through the arc groove on the disc. This allows the four fixed plates to simultaneously retract or expand towards the center, achieving rapid centering and clamping of the car body, greatly improving the automation efficiency and operational stability of the production line. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a car body conveying and fixing mechanism for an automobile production line proposed in this utility model. Figure 2 This is a schematic diagram of the planar structure of a car body conveying and fixing mechanism for an automobile production line proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of the disc, auxiliary groove, and round rod of this utility model.

[0013] In the diagram: 1. Conveyor seat, 2. Fixed plate, 3. Moving block, 4. Guide rod, 5. Mounting groove, 6. Servo motor, 7. Fixed block, 8. Disc, 9. Round rod, 10. Worm gear, 11. Worm wheel, 12. Rotating shaft, 13. Auxiliary groove, 14. Inner cavity, 15. Conveyor wheel. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figures 1-3A car body conveying and fixing mechanism for an automobile production line includes a conveyor seat 1, an inner cavity 14, four conveyor wheels 15, and a limiting mechanism. The inner cavity 14 is disposed within the conveyor seat 1, and the four conveyor wheels 15 are disposed at the bottom of the conveyor seat 1. The limiting mechanism includes a rotating shaft 12, a worm gear 11, a worm 10, and a servo motor 6. The rotating shaft 12 is rotatably connected between the inner top and inner bottom of the inner cavity 14. The worm gear 11 is fixedly installed on the outer wall of the rotating shaft 12. The worm 10 is rotatably connected between the two inner walls of the inner cavity 14. The worm 10 and the worm gear 11 are meshed and connected to form a transmission pair with self-locking characteristics to ensure that it will not loosen in the reverse direction after clamping. One end of the worm 10 passes through one inner wall of the inner cavity 14 and is fixedly connected to the output shaft of the servo motor 6.

[0016] A disc 8 is fixedly installed on the outer wall of the rotating shaft 12, located above the worm gear 11. The disc 8 has four auxiliary grooves 13, and a round rod 9 is slidably connected to each of the four auxiliary grooves 13. The round rod 9 slides in the auxiliary groove 13 to convert the rotation of the disc 8 into its own radial displacement. A fixing block 7 is fixedly installed on the top of each of the four round rods 9. The top of the conveying seat 1 has four mounting grooves 5 that communicate with the inner cavity 14. A moving block 3 is slidably installed in each of the four mounting grooves 5. A fixing plate 2 is fixedly installed on the top of each of the four moving blocks 3. The four moving blocks 3 are fixedly connected to the four fixing blocks 7 respectively. A guide rod 4 is fixedly connected between the inner walls of the two ends of each of the four mounting grooves 5 to ensure that the moving blocks 3 slide smoothly on the guide rod 4. The four moving blocks 3 are slidably fitted onto the four guide rods 4 respectively. The four moving blocks 3 are adapted to the four mounting grooves 5 respectively. All four auxiliary grooves 13 are arc-shaped.

[0017] In use, the car body is hoisted or placed at a predetermined position between the four fixed plates 2 on the top of the conveyor seat 1. Then, the servo motor 6 is started, which drives the worm gear 10 to rotate. Through the meshing of the worm gear 10 and the worm wheel 11, the rotating shaft 12 and the disc 8 fixed on it are rotated. The four arc-shaped auxiliary grooves 13 on the disc 8 push the circular rod 9 that is slidably connected to it, so that the fixed block 7 at the top of the circular rod 9 drives the moving block 3 to slide synchronously towards the center along the guide rod 4 in the mounting groove 5. This drives the four fixed plates 2 to clamp the car body smoothly from both sides. After reliable fixing is completed, the entire mechanism can move along the production line track with the clamped car body under the drive of the four conveyor wheels 15 at the bottom, and transport it to the next processing station.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A car body conveying and fixing mechanism for an automobile production line, characterized in that, The device includes a conveyor seat (1), an inner cavity (14), four conveyor wheels (15), and a limiting mechanism. The inner cavity (14) is located inside the conveyor seat (1), and the four conveyor wheels (15) are all located at the bottom of the conveyor seat (1). The limiting mechanism includes a rotating shaft (12), a worm wheel (11), a worm (10), and a servo motor (6). The rotating shaft (12) is rotatably connected between the inner top and inner bottom of the inner cavity (14). The worm wheel (11) is fixedly installed on the outer wall of the rotating shaft (12). The worm (10) is rotatably connected between the two inner walls of the inner cavity (14). The worm (10) meshes with the worm wheel (11). One end of the worm (10) passes through one inner wall of the inner cavity (14) and is fixedly connected to the output shaft of the servo motor (6).

2. The automobile body conveying and fixing mechanism for an automobile production line according to claim 1, characterized in that, A disc (8) located above the worm gear (11) is fixedly installed on the outer wall of the rotating shaft (12). Four auxiliary slots (13) are provided on the disc (8). A round rod (9) that is slidably connected to each of the four auxiliary slots (13) is provided through each of them. A fixing block (7) is fixedly installed on the top of each of the four round rods (9).

3. The automobile body conveying and fixing mechanism for an automobile production line according to claim 2, characterized in that, The top of the conveyor seat (1) is provided with four mounting slots (5) that communicate with the inner cavity (14). Each of the four mounting slots (5) is provided with a moving block (3). Each of the four moving blocks (3) is fixedly installed with a fixing plate (2) on its top. Each of the four moving blocks (3) is fixedly connected to a fixing block (7).

4. The automobile body conveying and fixing mechanism for an automobile production line according to claim 3, characterized in that, Guide rods (4) are fixedly connected between the inner walls of the two ends of the four mounting slots (5), and the four moving blocks (3) are respectively slidably mounted on the four guide rods (4).

5. The automobile body conveying and fixing mechanism for an automobile production line according to claim 3, characterized in that, The four movable blocks (3) are respectively adapted to the four mounting slots (5).

6. The automobile body conveying and fixing mechanism for an automobile production line according to claim 2, characterized in that, All four auxiliary slots (13) are arc-shaped.

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