Frame assembly line trolley with adjustable opening size

By setting up a mounting frame on the top of the trolley in the chassis assembly line, and utilizing the cooperation of a rotating plate, a moving plate, and a swing rod, the problem of adaptation difficulties caused by the fixed opening size of the trolley was solved. This enabled flexible adjustment of the opening size and smooth transport of the chassis, improving the adaptability and efficiency of the assembly line.

CN224256809UActive Publication Date: 2026-05-19HEFEI ERYING INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI ERYING INTELLIGENT TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The fixed opening size of the existing chassis assembly line trolleys leads to frequent trolley replacements or complex adaptation adjustments when assembling chassis for various vehicle models, making it difficult to flexibly adapt to the placement and transportation of chassis of different specifications.

Method used

Design a frame assembly line trolley with adjustable opening size. By setting an mounting frame on the top of the trolley, the opening size of the mounting frame can be adjusted by the cooperation of a rotating plate, a moving plate and a swing rod. The stability and smoothness of movement are ensured by using a sliding block guide and a fixed sleeve limit.

Benefits of technology

It enables adjustment of the opening size on the top of the trolley, adapting to the placement and transportation of different frame specifications, making full use of the upper space, moving smoothly, and improving the flexibility and efficiency of the assembly line.

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Abstract

The utility model discloses a frame assembly line trolley with an adjustable opening size, which comprises a mounting rack mounted at the top of the line trolley, a fixed shell is fixedly connected to an inner cavity of the mounting rack, a rotatable rotating rod is arranged at a center shaft at the bottom of the inner cavity of the fixed shell in a penetrating manner, a rotating plate is fixedly connected to the surface of the rotating rod, and the rotating plate is fixedly connected to the top of the mounting rack. The left side and the right side of an inner cavity of the fixed shell are each fixedly connected with two symmetrical rails, the left side and the right side of the inner cavity of the fixed shell are each provided with a moving plate, and the two sides of the top of a rotating plate are each rotationally connected with two symmetrical swing rods through a rotating shaft. A frame is placed at the top of the mounting frame, and the rotating plate, the moving plate and the oscillating rod are used in cooperation, so that the four vertical plates can drive the two clamping plates to move oppositely at the top of the mounting frame, and then the opening size of the mounting frame is adjusted to adapt to placement and conveying of frames of different specifications.
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Description

Technical Field

[0001] This utility model belongs to the technical field of chassis assembly line trolleys, and in particular relates to a chassis assembly line trolley with adjustable opening size. Background Technology

[0002] The gap refers to the lateral distance between the two positioning structures on the top of the trolley that support the longitudinal beams of the frame. The frame assembly line trolley with adjustable gap size is a key piece of equipment on the automobile frame assembly production line. Through the adjustable positioning structure, the lateral distance between the two positioning points can be flexibly changed.

[0003] In the automotive manufacturing industry, chassis assembly is a critical step. The fixed opening size of the chassis assembly line trolley may lead to frequent trolley changes or complex chassis adaptation adjustments when assembling chassis for various vehicle models. Therefore, we need to design a chassis assembly line trolley with an adjustable opening size. A mounting frame is set on the top of the trolley to make full use of the upper space. By adjusting the opening size of the mounting frame, it can adapt to the placement and transportation of chassis of different specifications, achieving opening size adjustment and smooth movement. Utility Model Content

[0004] The purpose of this utility model is to provide a frame assembly line trolley with adjustable opening size, which has the advantages of setting a mounting frame on the top of the trolley, making full use of the upper space, realizing the adjustment of the opening size, and smooth movement, so as to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A frame assembly line trolley with adjustable opening size includes a mounting frame installed on the top of the trolley. A fixed shell is fixedly connected to the inner cavity of the mounting frame. A rotatable rotating rod is provided through the central shaft at the bottom of the inner cavity of the fixed shell. A rotating plate is fixedly connected to the surface of the rotating rod. Two symmetrical tracks are fixedly connected to the left and right sides of the inner cavity of the fixed shell. Movable plates are provided on the left and right sides of the inner cavity of the fixed shell. Two symmetrical swing rods are rotatably connected to the top of the rotating plate on both sides through a rotating shaft. The ends of the two swing rods away from the rotating plate are rotatably connected to the two movable plates through a rotating shaft. Two symmetrical clamping plates are provided on the top of the fixed shell. A motor is installed at the bottom of the fixed shell. The output shaft of the motor is fixedly connected to the rotating rod.

[0006] Preferably, each of the four tracks has a sliding block slidably connected to its top, and the four sliding blocks are fixedly connected to the two movable plates.

[0007] Preferably, two symmetrical upright plates are fixedly connected to the top of each of the two movable plates, and the four upright plates extend through to the top of the fixed shell and are fixedly connected to the two clamping plates.

[0008] Preferably, a fixing sleeve is fixedly connected to the central axis at the bottom of the inner cavity of the fixing shell, and the rotating rod is rotatably connected to the inner cavity of the fixing sleeve.

[0009] Preferably, a support member is fixedly connected to the central axis at the bottom of the fixed shell, and the motor is installed in the inner cavity of the support member.

[0010] Preferably, the top of the fixed shell has a rectangular groove for the four upright plates to move.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model places the vehicle frame on top of the mounting frame. Through the combined use of the rotating plate, the moving plate and the swing rod, the four upright plates drive the two clamping plates to move towards each other on the top of the mounting frame. This allows for adjustment of the opening size of the mounting frame, which can accommodate the placement and transportation of vehicle frames of different specifications. Thus, by setting up the mounting frame on the top of the trolley, the upper space can be fully utilized, the opening size can be adjusted, and the movement can be smooth.

[0013] 2. By setting up a sliding block, the sliding block guides the moving plate at the top of the track when it drives the top moving plate to slide, ensuring that the two moving plates can move smoothly towards each other in the inner cavity of the fixed shell, thus improving the stability of the sliding of the moving plates.

[0014] 3. By setting a fixed sleeve, the fixed sleeve limits the rotation of the rotating rod when it rotates in the inner cavity of the fixed sleeve, ensuring that the rotating rod will not deviate when it drives the surface rotating plate to rotate, thus improving the stability of the rotating rod during the rotation process. Attached Figure Description

[0015] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0016] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;

[0017] Figure 2 This is a partial schematic diagram of a line trolley according to an embodiment of the present invention;

[0018] Figure 3 This is a three-dimensional anatomical diagram of the fixing shell according to an embodiment of the present invention;

[0019] Figure 4 This is a side view of a line trolley according to an embodiment of the present invention.

[0020] Figure 5This is one embodiment of the present utility model. Figure 3 A magnified view of point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Line trolley, 2. Mounting frame, 3. Fixed shell, 4. Rotating rod, 5. Rotating plate, 6. Track, 7. Sliding block, 8. Moving plate, 9. Swinging rod, 10. Vertical plate, 11. Clamping plate, 12. Fixed sleeve, 13. Support component, 14. Motor. Detailed Implementation

[0023] In the following description, embodiments of the adjustable-opening-size frame assembly line trolley of the present invention will be described with reference to the accompanying drawings.

[0024] Figure 1-5 This invention illustrates an embodiment of an adjustable-size frame assembly line trolley, comprising a mounting frame 2 mounted on the top of the trolley 1. A fixed housing 3 is fixedly connected to the inner cavity of the mounting frame 2. A rotatable rotating rod 4 is threaded through the central axis at the bottom of the inner cavity of the fixed housing 3. A rotating plate 5 is fixedly connected to the surface of the rotating rod 4. Two symmetrical tracks 6 are fixedly connected to the left and right sides of the inner cavity of the fixed housing 3. Movable plates 8 are provided on both sides of the inner cavity of the fixed housing 3. Sliding blocks 7 are slidably connected to the top of each of the four tracks 6. The four sliding blocks 7 are fixedly connected to the two movable plates 8. Through the setting of the sliding blocks 7, when the sliding blocks 7 drive the top movable plates 8 to slide on the top of the tracks 6, the sliding blocks 7 guide the movable plates 8, ensuring that the two movable plates 8 can move smoothly towards each other within the inner cavity of the fixed housing 3, improving the stability of the sliding of the movable plates 8. Two symmetrical swing rods 9 are rotatably connected to the top of the rotating plate 5 via a rotating shaft. The two swing rods 9 are located away from the rotating plate 5. One end is rotatably connected to two movable plates 8 via a rotating shaft. The top of the fixed shell 3 is provided with two symmetrical clamping plates 11. The top of each of the two movable plates 8 is fixedly connected with two symmetrical upright plates 10. The four upright plates 10 extend through to the top of the fixed shell 3 and are fixedly connected to the two clamping plates 11. A fixed sleeve 12 is fixedly connected to the central axis at the bottom of the inner cavity of the fixed shell 3. The rotating rod 4 is rotatably connected to the inner cavity of the fixed sleeve 12. Through the setting of the fixed sleeve 12, when the rotating rod 4 rotates in the inner cavity of the fixed sleeve 12, the fixed sleeve 12 plays a limiting role on the rotating rod 4, ensuring that the rotating rod 4 will not deviate when driving the surface rotating plate 5 to rotate, thus improving the stability of the rotating rod 4 during the rotation process. A motor 14 is installed at the bottom of the fixed shell 3. The output shaft of the motor 14 is fixedly connected to the rotating rod 4. A support member 13 is fixedly connected to the central axis at the bottom of the fixed shell 3. The motor 14 is installed in the inner cavity of the support member 13. A rectangular groove is opened at the top of the fixed shell 3 for the four upright plates 10 to move.

[0025] Working principle: When using this utility model, the user places the frame on top of the mounting frame 2, and then turns on the motor 14 inside the support member 13. The output shaft of the motor 14 drives the rotating rod 4 to rotate, which in turn drives the rotating plate 5 on the surface to rotate. The rotating plate 5 drives the two swing rods 9 on the top to rotate through the rotating shaft. The ends of the two swing rods 9 away from the rotating plate 5 drive the moving plate 8 to move towards each other. Then, the two moving plates 8 drive the sliding block 7 at the bottom to slide towards each other on the top of the track 6. At the same time, the two moving plates 8 drive the upright plate 10 on the top to move towards each other. In turn, the upright plate 10 drives the two clamping plates 11 on the top of the mounting frame 2 to move towards each other. The two clamping plates 11 clamp and limit the two sides of the frame. Then, the line trolley 1 drives the frame on the top of the mounting frame 2 to move.

[0026] In summary, this adjustable-size frame assembly line trolley, by placing the frame on top of the mounting frame 2, utilizes the combined use of the rotating plate 5, the moving plate 8, and the swing rod 9 to cause the four upright plates 10 to drive the two clamping plates 11 to move towards each other on top of the mounting frame 2. This allows for adjustment of the opening size of the mounting frame 2, accommodating the placement and transport of frames of different specifications. Thus, by setting up the mounting frame on top of the trolley, the upper space can be fully utilized to achieve the purpose of adjusting the opening size and ensuring smooth movement.

Claims

1. A frame assembly line trolley with adjustable opening size, characterized in that, The system includes a mounting frame (2) installed on the top of the online trolley (1). A fixed shell (3) is fixedly connected to the inner cavity of the mounting frame (2). A rotatable rotating rod (4) is installed through the central axis at the bottom of the inner cavity of the fixed shell (3). A rotating plate (5) is fixedly connected to the surface of the rotating rod (4). Two symmetrical tracks (6) are fixedly connected to the left and right sides of the inner cavity of the fixed shell (3). A movable plate (8) is provided on the left and right sides of the inner cavity of the fixed shell (3). Two symmetrical swing rods (9) are rotatably connected to the top of the rotating plate (5) through a rotating shaft. The ends of the two swing rods (9) away from the rotating plate (5) are rotatably connected to the two movable plates (8) through a rotating shaft. Two symmetrical clamping plates (11) are provided on the top of the fixed shell (3). A motor (14) is installed on the bottom of the fixed shell (3). The output shaft of the motor (14) is fixedly connected to the rotating rod (4).

2. The frame assembly line trolley with adjustable opening size according to claim 1, characterized in that, Each of the four tracks (6) has a sliding block (7) slidably connected to its top, and the four sliding blocks (7) are fixedly connected to two movable plates (8).

3. A frame assembly line trolley with adjustable opening size according to claim 2, characterized in that, Two symmetrical upright plates (10) are fixedly connected to the top of each of the two movable plates (8), and the four upright plates (10) extend through to the top of the fixed shell (3) and are fixedly connected to the two clamping plates (11).

4. A frame assembly line trolley with adjustable opening size according to claim 3, characterized in that, A fixed sleeve (12) is fixedly connected to the central axis at the bottom of the inner cavity of the fixed shell (3), and the rotating rod (4) is rotatably connected to the inner cavity of the fixed sleeve (12).

5. A frame assembly line trolley with adjustable opening size according to claim 4, characterized in that, A support member (13) is fixedly connected to the central axis at the bottom of the fixed shell (3), and the motor (14) is installed in the inner cavity of the support member (13).

6. A frame assembly line trolley with adjustable opening size according to claim 5, characterized in that, The top of the fixed shell (3) is provided with a rectangular groove for the four upright plates (10) to move.