Multi-degree-of-freedom butt-joint assembly rack car

By designing an assembly trolley with multiple degrees of freedom for docking, and utilizing components such as casters, hydraulic rods, and electric push rods, stable docking of large cylindrical parts was achieved, solving the problem of manual operation and improving docking efficiency and safety.

CN223933475UActive Publication Date: 2026-02-24HEBEI QINGHANG PRECISION MASCH MFG CO LTD
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Patent Information

Application Number
CN202520479511.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-24
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Manual operation is difficult to connect large and heavy cylindrical parts, and it is labor-intensive and poses safety hazards.

Method used

Design an assembly rack vehicle with multi-degree-of-freedom docking, using casters, hydraulic rods, electric push rods, servo motors and multi-degree-of-freedom adjustment components to achieve multi-directional adjustment and positioning of cylindrical parts.

Benefits of technology

It improves the efficiency and accuracy of cylindrical component docking, reduces labor intensity, and eliminates safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223933475U_ABST
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Abstract

The utility model discloses a multi-degree-of-freedom butt joint assembly rack car which comprises a base, and universal wheels which are annularly arranged and distributed are rotationally connected to the bottom of the base. The utility model belongs to the technical field of part assembly, and particularly relates to a multi-degree-of-freedom butt joint assembly rack car which solves the problems that when two cylindrical parts are in butt joint, due to the fact that products are large in size and heavy, butt joint assembly is difficult to conduct through manual operation, labor intensity is large, and certain potential safety hazards exist.
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Description

Technical Field

[0001] This utility model belongs to the field of parts assembly technology, and in particular relates to an assembly frame vehicle with multi-degree-of-freedom docking. Background Technology

[0002] The assembly of certain products requires the docking of two cylindrical parts. Due to the large size and weight of the products, it is difficult to dock them manually. In order to successfully dock the products, an assembly trolley with multi-directional functional adjustment is needed to adjust and dock the cylindrical parts. Therefore, an assembly trolley is proposed to solve the above problems. Utility Model Content

[0003] The technical problem this invention aims to solve is that when two cylindrical parts are joined together, due to the large size and weight of the products, it is difficult to perform the joining and assembly manually, which not only involves high labor intensity but also poses certain safety hazards.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a multi-degree-of-freedom docking assembly rack, including a base, wherein the bottom of the base is rotatably connected to annularly arranged casters, and further including...

[0005] A multi-degree-of-freedom adjustment assembly is located on the top of the base and includes a horizontal plate. The horizontal plate is slidably located on the top of the base via a front and rear adjustment mechanism. A hydraulic rod is fixedly installed on the top of the horizontal plate. A circular box is fixedly connected to the free end of the hydraulic rod. A rotating shaft is rotatably connected to the bottom wall of the circular box. The upper end of the rotating shaft vertically passes through the top of the circular box and is rotatably connected to it. A drive mechanism for adjusting the direction of the rotating shaft is provided inside the circular box.

[0006] A positioning component is placed on top of the rotating shaft, including a top cylinder. The top cylinder is fixedly connected to the upper end of the rotating shaft. The top cylinder is arranged to run through the front and back. The inner bottom of the top cylinder is trapezoidal. An electric push rod perpendicular to the top of the top cylinder is fixedly connected. The free end of the electric push rod is fixedly connected to a pressure plate with a concave bottom, and the concave part is trapezoidal.

[0007] Furthermore, the front and rear adjustment mechanism includes a linear guide rail and an adjustment block. The linear guide rail is horizontally and fixedly installed on the top of the base. The adjustment block is horizontally slidably disposed on the linear guide rail. The cross plate is fixedly connected to the top of the adjustment block.

[0008] Furthermore, the drive mechanism includes gear one and gear two. A servo motor is fixedly installed on the inner bottom wall of the circular box. Gear one is fixedly connected to the output end of the servo motor, and gear two is fixedly connected to the rotating shaft. Gear one and gear two mesh with each other.

[0009] Furthermore, the top of the base is fixedly connected to a guide bar that is T-shaped, and a slider is horizontally slidably connected to the guide bar. The top of the slider is fixedly connected to the bottom of the horizontal plate.

[0010] Furthermore, the top of the round box is provided with a groove, which is arranged in a ring shape. The bottom of the top cylinder is fixedly connected with symmetrically distributed limiting blocks. The limiting blocks are bent. The bottom wall of the limiting blocks is provided with balls, and the bottom of the balls is located inside the groove.

[0011] Furthermore, a reinforcing frame is fixedly connected to the top of the horizontal plate, the hydraulic rod penetrates vertically through the reinforcing frame and is fixedly connected thereto, and a guide rod is fixedly connected to the bottom of the circular box, the lower end of the guide rod penetrating vertically through the reinforcing frame and being slidably connected thereto.

[0012] Furthermore, the base has protruding sides, and an adjusting rod perpendicular to the protruding positions on both sides is threadedly connected to the protruding positions on both sides. The lower end of the adjusting rod is rotatably connected to a support plate.

[0013] The beneficial effects of this utility model after adopting the above structure are as follows:

[0014] (1) The overall position is moved by the casters. By locking the casters and turning the adjusting rod, the support plate is moved to the ground, which can prevent the whole from moving and ensure the stability during docking.

[0015] (2) By extending the electric push rod to move the pressure plate downward, the cylindrical part can be pressed between the bottom of the top cylinder and the bottom of the pressure plate. The shape settings of the bottom of the pressure plate and the bottom of the top cylinder can be used to press and position cylindrical parts of different diameters.

[0016] (3) The height, front and rear position and direction of the top cylinder can be adjusted in multiple ways according to the needs, which improves the efficiency and accuracy of cylinder docking. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the overall structure of a multi-degree-of-freedom docking assembly frame vehicle proposed in this utility model;

[0019] Figure 2 This is a front view of an assembly frame vehicle with multi-degree-of-freedom docking proposed in this utility model;

[0020] Figure 3This is a three-dimensional structural diagram of an assembly frame vehicle with multi-degree-of-freedom docking proposed in this utility model;

[0021] Figure 4 This is a cross-sectional view of a circular box of an assembly frame vehicle with multi-degree-of-freedom docking proposed in this utility model.

[0022] In the attached diagram: 1. Base, 2. Casters, 3. Horizontal plate, 4. Hydraulic rod, 5. Round box, 6. Rotary shaft, 7. Top cylinder, 8. Electric push rod, 9. Pressure plate, 10. Linear guide rail, 11. Adjusting block, 12. Gear 1, 13. Gear 2, 14. Servo motor, 15. Guide bar, 16. Slider, 17. Groove, 18. Limiting block, 19. Ball bearing, 20. Reinforcing frame, 21. Guide rod, 22. Adjusting rod, 23. Support plate. Detailed Implementation

[0023] like Figure 1 and 2 As shown, a multi-degree-of-freedom assembly rack includes a base 1. The bottom of the base 1 is rotatably connected to a ring of casters 2, which are self-locking casters to facilitate fixing the position after movement. The two sides of the base 1 are protruding, and the protruding positions on both sides of the base 1 are threadedly connected to adjusting rods 22 perpendicular to them. The lower end of the adjusting rods 22 is rotatably connected to a support plate 23. By turning the adjusting rods 22, the support plate 23 can be moved down to increase friction by contacting the ground. The rack also includes a multi-degree-of-freedom adjustment component and a placement and positioning component, both of which are located on the top of the base 1.

[0024] like Figure 1-4As shown, to facilitate multi-directional adjustment, the multi-degree-of-freedom adjustment assembly includes a horizontal plate 3. The horizontal plate 3 is slidably mounted on the top of the base 1 via a front-to-back adjustment mechanism. The front-to-back adjustment mechanism includes a linear guide rail 10 and an adjustment block 11. The linear guide rail 10 is horizontally and fixedly mounted on the top of the base 1. The adjustment block 11 is horizontally slidably mounted on the linear guide rail 10. The horizontal plate 3 is fixedly connected to the top of the adjustment block 11. The position of the horizontal plate 3 can be adjusted back and forth via the linear guide rail 10. A guide bar 15 is fixedly connected to the top of the base 1, and the guide bar 15 is T-shaped. A slider 16 is horizontally slidably connected to the guide bar 15. The top of the slider 16 is fixedly connected to the bottom of the horizontal plate 3. The front-to-back sliding of the horizontal plate 3 can drive the slider 16 to slide on the guide bar 15, increasing the stability during movement. A hydraulic rod 4 is fixedly mounted on the top of the horizontal plate 3. A circular box 5 is fixedly connected to the free end of the hydraulic rod 4. A rotating shaft 6 is rotatably connected to the bottom wall of the inner box 5. The upper end of the rotating shaft 6 vertically passes through the top of the round box 5 and is rotatably connected to it. The round box 5 is equipped with a drive mechanism for adjusting the direction of the rotating shaft 6. The drive mechanism includes a first gear 12 and a second gear 13. A servo motor 14 is fixedly installed on the inner bottom wall of the round box 5. The first gear 12 is fixedly connected to the output end of the servo motor 14, and the second gear 13 is fixedly connected to the rotating shaft 6. The first gear 12 and the second gear 13 mesh with each other. The top cylinder 7 can be rotated and adjusted through the meshing of the first gear 12 and the second gear 13. The top of the round box 5 is provided with a groove 17, which is arranged in a ring shape. The bottom of the top cylinder 7 is fixedly connected with symmetrically distributed limiting blocks 18. The limiting blocks 18 are bent. The bottom wall of the limiting blocks 18 is provided with ball bearings 19. The bottom of the ball bearings 19 is located inside the groove 17. When the top cylinder 7 rotates, it drives the limiting blocks 18 to rotate on the top side of the round box 5, increasing the stability of the top cylinder 7.

[0025] like Figure 1-3 As shown, in order to facilitate the placement and positioning of cylindrical parts, a placement and positioning assembly is located on the top of the rotating shaft 6, including a top cylinder 7. The top cylinder 7 is fixedly connected to the upper end of the rotating shaft 6. The top cylinder 7 is arranged to run through the front and back. The inner bottom of the top cylinder 7 is trapezoidal. An electric push rod 8 perpendicular to the top of the top cylinder 7 is fixedly connected. The free end of the electric push rod 8 is fixedly connected to a pressure plate 9 with a concave bottom, and the concave part is trapezoidal. The shape of the bottom of the pressure plate 9 and the shape of the inner bottom of the top cylinder 7 facilitate the placement and positioning of cylindrical parts of different diameters.

[0026] To increase the stability of the hydraulic rod 4 and the round box 5, a reinforcing frame 20 is fixedly connected to the top of the horizontal plate 3. The hydraulic rod 4 passes vertically through the reinforcing frame 20 and is fixedly connected to it. A guide rod 21 is fixedly connected to the bottom of the round box 5. The lower end of the guide rod 21 passes vertically through the reinforcing frame 20 and is slidably connected to it.

[0027] In practical use, prepare two sets of devices to place the two cylindrical components respectively. After moving the entire assembly to the appropriate position using the casters 2, lock the casters 2 and rotate the adjusting rods 22 on both sides to lower the support plate 23 to the ground to prevent movement. After placing the cylindrical component inside the top cylinder 7, extend the electric push rod 8 and lower the pressure plate 9 to press the cylindrical component tightly inside the top cylinder 7. Adjust the position of the top cylinder 7 according to the actual situation. Adjust the height of the top cylinder 7 by controlling the retraction of the hydraulic rod 4. Control the linear guide rail 10 to... Adjusting block 11 drives horizontal plate 3 to adjust its position back and forth. During the process, horizontal plate 3 drives slider 16 to slide on guide bar 15, increasing stability during back and forth movement. The operation of servo motor 14 causes gear 12 and gear 2 13 to mesh and drive, thereby adjusting the direction of top cylinder 7. When top cylinder 7 rotates, it drives limit block 18 to rotate on top of round box 5. The setting of ball 19 and groove 17 facilitates the rotation of limit block 18. Through the above operation, the position of top cylinder 7 can be adjusted in multiple directions, improving the efficiency and accuracy of cylindrical parts docking.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A multi-degree-of-freedom docking assembly rack, comprising a base (1), wherein the bottom of the base (1) is rotatably connected to annularly arranged casters (2), characterized in that: Also includes A multi-degree-of-freedom adjustment assembly is located on the top of the base (1) and includes a horizontal plate (3). The horizontal plate (3) is slidably located on the top of the base (1) through a front and rear adjustment mechanism. A hydraulic rod (4) is fixedly installed on the top of the horizontal plate (3). A circular box (5) is fixedly connected to the free end of the hydraulic rod (4). A rotating shaft (6) is rotatably connected to the bottom wall of the circular box (5). The upper end of the rotating shaft (6) vertically penetrates the top of the circular box (5) and is rotatably connected to it. A drive mechanism for adjusting the direction of the rotating shaft (6) is provided inside the circular box (5). A positioning component is placed on the top of the rotating shaft (6), including a top cylinder (7). The top cylinder (7) is fixedly connected to the upper end of the rotating shaft (6). The top cylinder (7) is arranged to be through from front to back. The bottom of the top cylinder (7) is arranged in a trapezoidal shape. An electric push rod (8) perpendicular to the top of the top cylinder (7) is fixedly connected. A pressure plate (9) with a concave bottom is fixedly connected to the free end of the electric push rod (8), and the concave part is arranged in a trapezoidal shape.

2. The multi-degree-of-freedom docking assembly frame vehicle according to claim 1, characterized in that: The front and rear adjustment mechanism includes a linear guide rail (10) and an adjustment block (11). The linear guide rail (10) is horizontally and fixedly installed on the top of the base (1). The adjustment block (11) is horizontally slidably disposed on the linear guide rail (10). The cross plate (3) is fixedly connected to the top of the adjustment block (11).

3. The multi-degree-of-freedom docking assembly frame vehicle according to claim 1 or 2, characterized in that: The drive mechanism includes gear one (12) and gear two (13). A servo motor (14) is fixedly installed on the inner bottom wall of the round box (5). Gear one (12) is fixedly connected to the output end of the servo motor (14), and gear two (13) is fixedly connected to the rotating shaft (6). Gear one (12) and gear two (13) mesh with each other.

4. The multi-degree-of-freedom docking assembly frame vehicle according to claim 2, characterized in that: The top of the base (1) is fixedly connected to a guide bar (15) arranged opposite to it. The guide bar (15) is T-shaped. A slider (16) is horizontally slidably connected to the guide bar (15). The top of the slider (16) is fixedly connected to the bottom of the horizontal plate (3).

5. The multi-degree-of-freedom docking assembly frame vehicle according to claim 3, characterized in that: The top of the round box (5) is provided with a groove (17) and it is arranged in a ring. The bottom of the top cylinder (7) is fixedly connected with symmetrically distributed limiting blocks (18). The limiting blocks (18) are bent. The bottom wall of the limiting blocks (18) is provided with balls (19). The bottom of the balls (19) is located inside the groove (17).

6. The multi-degree-of-freedom docking assembly frame vehicle according to claim 5, characterized in that: A reinforcing frame (20) is fixedly connected to the top of the horizontal plate (3), and the hydraulic rod (4) penetrates vertically through the reinforcing frame (20) and is fixedly connected thereto. A guide rod (21) is fixedly connected to the bottom of the round box (5) and is arranged opposite to it. The lower end of the guide rod (21) penetrates vertically through the reinforcing frame (20) and is slidably connected thereto.

7. The multi-degree-of-freedom docking assembly frame vehicle according to claim 6, characterized in that: The base (1) has protrusions on both sides, and an adjustment rod (22) perpendicular to it is threadedly connected to the protrusions on both sides of the base (1). The lower end of the adjustment rod (22) is rotatably connected to a support plate (23).