Large workpiece assembly butt frame vehicle

Abstract

The utility model provides a big workpiece assembly butt joint frame car, including first displacement component, second displacement component, first butt joint subassembly and second butt joint subassembly, first displacement component and second displacement component can be set up independently each other, first displacement component and second displacement component can be close to or away from each other, and the upper end of first displacement component sets first butt joint subassembly, and the upper end of second displacement component sets second butt joint subassembly. Big workpiece assembly butt joint frame car disclosed by the utility model, by setting first butt joint subassembly and second butt joint subassembly, can two-way adjustment to the two big workpieces of butt joint, by first butt joint subassembly adjustment one big workpiece's axle vertical position, by second butt joint subassembly adjustment another big workpiece axle's horizontal position, make the two big workpieces of butt joint axle coincide, improve butt joint efficiency, reduce manual labour.

Description

Technical Field

[0001] This utility model belongs to the field of large workpiece assembly, and in particular relates to a large workpiece assembly docking frame vehicle. Background Technology

[0002] Large workpiece assembly trolleys are mainly used for the assembly and transfer of large and medium-sized components in heavy machinery, ships, rail transportation and other fields. Their technical background stems from the high requirements for positioning accuracy, load-bearing capacity and operational flexibility of large-sized and heavy workpieces during the production process.

[0003] In rocket manufacturing, the assembly and docking of large components (such as rocket body sections and engine compartments) is one of the key processes, and its docking accuracy directly affects the overall performance and flight safety of the rocket. Currently, the assembly and docking of large rocket components mostly relies on traditional supports or simple scaffolding vehicles. These devices can only achieve movement in one direction or height adjustment, and cannot flexibly adjust the posture of the components, making it difficult to meet complex docking requirements. This results in the need for multiple manual adjustments during the docking process, low docking efficiency, and increased labor intensity for workers. Utility Model Content

[0004] In view of this, the present invention aims to propose a large workpiece assembly docking trolley to solve the problems of inconvenient adjustment, low docking efficiency, and increased labor intensity caused by traditional supports or simple trolleys.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A large workpiece assembly docking trolley includes a first displacement component, a second displacement component, a first docking component, and a second docking component. The first displacement component and the second displacement component can be set independently of each other and can move closer to or further away from each other. The first docking component is set at the upper end of the first displacement component, and the second docking component is set at the upper end of the second displacement component. The first displacement component and the second displacement component have the same structure and are arranged opposite each other. The first displacement component includes a base and a connecting unit. The upper end of the base is provided with a first sliding groove, and the lower end of the base is provided with a wheel. Trailer rings are set laterally or vertically on both sides of the base. The connecting unit is set on the base, and the upper end of the connecting unit is fixedly connected to the lower end of the first docking component.

[0007] Furthermore, the first docking component includes a first mounting bracket and a first support unit. The lower end of the first mounting bracket is mounted on the upper end of the first displacement component, and the upper end of the first mounting bracket is provided with the first support unit. The lower end of the first support unit is slidably connected to the upper end of the first mounting bracket.

[0008] Furthermore, the first mounting frame includes a first frame, a third gear, a second connecting shaft, a fourth gear, a fifth gear, a third connecting shaft, and a second handwheel. The first frame is provided with a second sliding groove. The middle part of one side of the first frame is rotatably connected to the middle periphery of the second connecting shaft, and the two ends of the second connecting shaft are respectively fixedly connected to the middle parts of one side of the third gear and the fourth gear. The other side of the first frame is rotatably connected to the middle periphery of the third connecting shaft, and the two ends of the third connecting shaft are respectively fixedly connected to the middle parts of one side connected to the fifth gear and the second handwheel. The third gear and the fifth gear are connected by a chain to form a synchronous rotation structure. The fourth gear and the second handwheel are respectively located on the outer sides of the first frame, and the fourth gear forms a synchronous rotation structure with the second handwheel through the third gear, the second connecting shaft, the fifth gear, and the third connecting shaft.

[0009] Furthermore, the first support unit includes an arc-shaped mounting plate, a first arc-shaped block, and a second side plate. The first arc-shaped block is fixedly mounted on the upper end of the arc-shaped mounting plate. A rack is provided on the inner wall of the lower end of the arc-shaped mounting plate, and the outer periphery of the rack meshes with the outer periphery of one side of the fourth gear. A second side plate is provided on each side of the arc-shaped mounting plate, and a second slider is provided at the lower end of each second side plate. Each second slider is slidably connected in a second groove.

[0010] Furthermore, the second docking assembly includes a second mounting bracket and a second support unit. The lower end of the second mounting bracket is fixedly connected to the upper end of the second displacement assembly. The upper end of the second mounting bracket is provided with a third sliding groove, and the second support unit is provided on the second mounting bracket.

[0011] Furthermore, the second support unit includes two third side plates, a transverse sliding structure, and a second arc-shaped block. The lower ends of the two third side plates are respectively fixedly connected to the upper end of the second mounting bracket, and a fourth sliding groove is vertically provided in the middle of one side of each third side plate. A transverse sliding structure is provided between the two third side plates. The outer periphery of one side of the transverse sliding structure is slidably connected to the outer periphery of the second arc-shaped block. A fourth slider is provided on each side of the second arc-shaped block, and the outer periphery of each fourth slider is slidably connected to a fourth sliding groove.

[0012] Furthermore, there are two transverse structures, which are parallel to each other and arranged opposite to each other. The transverse structure includes a transverse support, a second threaded rod, a third handwheel, and a third connecting plate. Multiple rollers are evenly distributed circumferentially on the upper end of the transverse support, and the outer periphery of each roller is rotatably connected to the outer periphery of the second arc-shaped block. A third slider is set on the lower ends of both sides of the transverse support, and the outer periphery of each third slider is slidably connected to a third groove. A crossbeam is set inside the transverse support, and the middle parts of the transverse support and the crossbeam are internally threaded to the outer periphery of the second threaded rod. One end of the second threaded rod is rotatably connected to one side of the third connecting plate, one end of the third connecting plate is fixedly connected to the middle of the upper end of the second mounting bracket, and the other end of the second threaded rod is fixedly connected to the middle of one side of the third handwheel. The transverse structure also includes a first support, one end of which is fixedly connected to the upper end of the second mounting bracket, and the inner ring of the other end of the first support is sleeved on the outer periphery of the second threaded rod. The first support is located on one side of the third handwheel.

[0013] Furthermore, the connecting unit includes a left connecting frame, a right connecting frame, a side plate, a first connecting shaft, a first handwheel, and a first threaded rod. The left and right connecting frames are parallel to each other and are respectively arranged on the upper sides of the base. The left connecting frame is fixedly installed on the base, and a first slider is provided at the lower end of the right connecting frame, with the outer periphery of the first slider slidably connected in a first groove. The side plate is fixedly installed on the base and is located on one side of the right connecting frame. The middle part of the side plate is rotatably connected to the middle periphery of the first connecting shaft. One end of the first connecting shaft is fixedly connected to the middle side of the first handwheel, and the other end of the first connecting shaft is fixedly connected to the middle side of the first gear. The two ends of the first threaded rod are respectively rotatably connected to one side of the left connecting frame and the side plate, and the first threaded rod is threadedly connected to the middle of the right connecting frame. A second gear is fixedly arranged on the outer periphery of the first threaded rod, and the second gear is located between the side plate and the right connecting frame. The outer periphery of the second gear is connected to the outer periphery of the first gear through a chain.

[0014] Compared with the prior art, the large workpiece assembly docking trolley described in this utility model has the following beneficial effects:

[0015] (1) The large workpiece assembly docking trolley described in this utility model can make bidirectional adjustments to the two large workpieces to be docked by setting a first docking component and a second docking component. The first docking component adjusts the vertical position of the axis of one large workpiece, and the second docking component adjusts the horizontal position of the axis of the other large workpiece, so that the axes of the two large workpieces to be docked coincide, thereby improving docking efficiency and reducing manual labor.

[0016] (2) The large workpiece assembly docking trolley described in this utility model moves two large workpieces to be docked to the corresponding positions through the first displacement component and the second displacement component. By rotating the first handwheel, the relative distance between the left connecting frame and the right connecting frame can be adjusted so that the first docking component and the second docking component are in the optimal support position to adapt to large workpieces of different lengths, thereby improving the utilization rate of the docking trolley and reducing production costs. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the large workpiece assembly docking frame vehicle described in this embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first displacement component in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the right connecting frame according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first docking component in an embodiment of the present invention;

[0022] Figure 5 This is a partial cross-sectional structural diagram of the first mounting bracket in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the first support unit in an embodiment of the present invention;

[0024] Figure 7 This is a partial cross-sectional structural diagram of the second docking component in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the assembly structure of the transverse sliding structure and the second mounting bracket described in an embodiment of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-First displacement assembly; 11-Base; 111-First slide rail; 112-Wheel; 113-Trailer ring; 12-Connecting unit; 121-Left connecting frame; 122-Right connecting frame; 1221-First slider; 123-Side plate; 124-First connecting shaft; 1241-First gear; 125-First handwheel; 126-First threaded rod; 1261-Second gear; 2-Second displacement assembly; 3-First docking assembly; 31-First mounting frame; 311-First frame; 3111-Second slide rail; 312-Third gear; 313-Second connecting shaft; 314-Fourth gear; 315-Fifth gear; 316-Third connecting shaft; 31 7-Second handwheel; 32-First support unit; 321-Arc-shaped mounting plate; 322-First arc-shaped block; 3211-Rack; 323-Second side plate; 3231-Second slider; 4-Second docking assembly; 41-Second mounting bracket; 42-Second support unit; 411-Third slide groove; 421-Third side plate; 4211-Fourth slide groove; 422-Transverse movement structure; 4221-Transverse movement bracket; 4222-Second threaded rod; 4223-Third handwheel; 4224-Third connecting plate; 4225-First bracket; 4226-Third slider; 4227-Crossbeam; 4228-Roller; 423-Second arc-shaped block; 4231-Fourth slider. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figure 1 As shown, a large workpiece assembly docking trolley is characterized by comprising a first displacement component 1, a second displacement component 2, a first docking component 3, and a second docking component 4. The first displacement component 1 and the second displacement component 2 can be independently configured, and can move closer to or further away from each other. The first docking component 3 is located at the upper end of the first displacement component 1, and the second docking component 4 is located at the upper end of the second displacement component 2. By configuring the first displacement component 1 and the second displacement component 2, the large workpiece to be docked can be moved to the corresponding position. The first docking component 3 and the second docking component 4 are used to adjust the lateral and vertical positions of the large workpiece to be docked, respectively, thereby improving work efficiency and reducing manual labor. The first displacement component 1... The first displacement component 1 has the same structure as the second displacement component 2 and is arranged opposite to it. The first displacement component 1 includes a base 11 and a connecting unit 12. The upper end of the base 11 is provided with a first sliding groove 111, and the lower end of the base 11 is provided with a wheel 112. The two sides of the base 11 are respectively provided with a trailer ring 113 horizontally or vertically. The connecting unit 12 is provided on the base 11, and the upper end of the connecting unit 12 is fixedly connected to the lower end of the first docking component 3. By setting the first sliding groove 111, the relative position of the connecting unit 12 can be adjusted to adapt to large workpieces of different sizes and improve the applicability of the docking frame. By setting the wheel 112, the base 11 can be moved on the ground, which facilitates the docking of large workpieces. The wheel 112 is a universal wheel in the prior art, model Blickle LS-SVS 201K-RI4-FS. The base 11 can be moved by a power source through the trailer ring 113, reducing manual pushing and reducing manual labor.

[0033] like Figure 2-3As shown, the connecting unit 12 includes a left connecting frame 121, a right connecting frame 122, a side plate 123, a first connecting shaft 124, a first handwheel 125, and a first threaded rod 126. The left connecting frame 121 and the right connecting frame 122 are parallel to each other and are respectively arranged on both sides of the upper end of the base 11. The left connecting frame 121 is fixedly installed on the base 11. The lower end of the right connecting frame 122 is provided with a first slider 1221, and the periphery of the first slider 1221 is slidably connected in the first slide groove 111. By setting the left connecting... The left connecting frame 121 and the right connecting frame 122 are connected, and a first docking component 3 is installed at the upper end of each of the left connecting frames 121 and the right connecting frame 122. By setting the right connecting frame 122 to slide, the relative distance between the left connecting frames 121 and the right connecting frame 122 can be adjusted to accommodate large workpieces of different lengths, improve the utilization rate of the device, and reduce production costs. The side plate 123 is fixedly installed on the base 11, and the side plate 123 is located on one side of the outer periphery of the right connecting frame 122. The first connecting shaft 124 is rotatably connected to the middle periphery of the first connecting shaft 124. One end of the first connecting shaft 124 is fixedly connected to the middle of one side of the first handwheel 125, and the other end of the first connecting shaft 124 is fixedly connected to the middle of one side of the first gear 1241. The two ends of the first threaded rod 126 are respectively rotatably connected to the left connecting frame 121 and the side plate 123, and the first threaded rod 126 is threadedly connected to the middle of the right connecting frame 122. The second gear 1261 is fixedly arranged on the periphery of the first threaded rod 126, and the second gear 1261 is located between the side plate 123 and the right connecting frame 122. The periphery of the second gear 1261 is connected to the periphery of the first gear 1241 through a chain. By rotating the first handwheel 125, the first threaded rod 126 is driven to rotate, which further drives the right connecting frame 122 to move closer to or away from the left connecting frame 121, thereby adjusting the relative position of the first docking components 3 on the left connecting frame 121 and the right connecting frame 122, so that the two first docking components 3 are in the optimal support position for the large workpiece.

[0034] like Figure 4 As shown, the first docking assembly 3 includes a first mounting frame 31 and a first support unit 32. The lower end of the first mounting frame 31 is mounted on the upper end of the first displacement assembly 1. The first support unit 32 is provided on the upper end of the first mounting frame 31, and the lower end of the first support unit 32 is slidably connected to the upper end of the first mounting frame 31. There are two first docking assemblies 3, which are respectively provided on the upper ends of the left connecting frame 121 and the right connecting frame 122. By adjusting the positions of the left connecting frame 121 and the right connecting frame 122, the positions of the two first docking assemblies 3 can be adjusted to adapt to the assembly of large workpieces of different lengths, improve the utilization rate of the device, and reduce production costs.

[0035] like Figure 5As shown, the first mounting bracket 31 includes a first frame 311, a third gear 312, a second connecting shaft 313, a fourth gear 314, a fifth gear 315, a third connecting shaft 316, and a second handwheel 317. A second sliding groove 3111 is provided on the first frame 311. The middle of one side of the first frame 311 is rotatably connected to the outer periphery of the middle of the second connecting shaft 313, and both ends of the second connecting shaft 313 are respectively fixedly connected to the middle of one side of the third gear 312 and the fourth gear 314. The other side of the first frame 311 is rotatably connected to the outer periphery of the middle of the third connecting shaft 316, and both ends of the third connecting shaft 316 are respectively fixedly connected to the middle of one side connected to the fifth gear 315 and the second handwheel 317. The third gear 312... The fourth gear 314 and the second handwheel 317 are connected by a chain to form a synchronous rotation structure. The fourth gear 314 and the second handwheel 317 are located on the outer sides of the first frame 311, and the fourth gear 314 forms a synchronous rotation structure with the second handwheel 317 through the third gear 312, the second connecting shaft 313, the fifth gear 315 and the third connecting shaft 316. By rotating the second handwheel 317, the fifth gear 315 at the other end of the third connecting shaft 316 is driven to rotate, which in turn drives the third gear 312 and the fourth gear 314 connected by the second connecting shaft 313 to rotate, thereby realizing the lateral movement operation. This facilitates docking with large workpieces, reduces hoisting and adjustment, reduces safety hazards, reduces manual labor, and improves docking efficiency.

[0036] like Figure 6 As shown, the first support unit 32 includes an arc-shaped mounting plate 321, a first arc-shaped block 322, and a second side plate 323. The first arc-shaped block 322 is fixedly mounted on the upper end of the arc-shaped mounting plate 321. A rack 3211 is provided on the lower inner wall of the arc-shaped mounting plate 321, and the outer periphery of the rack 3211 meshes with the outer periphery of one side of the fourth gear 314. A second side plate 323 is provided on each side of the arc-shaped mounting plate 321, and a second slider 3231 is provided at the lower end of each second side plate 323. Each second slider 3231 is slidably connected in a second groove 3111. By rotating the second handwheel 317, the fourth gear 314 is driven to rotate, which further drives the rack 3211 meshing with the outer periphery of one side of the fourth gear 314 to move, thereby realizing the lateral displacement of the first support unit 32. The second groove 3111 and the second slider 3231 are provided to limit the displacement trajectory of the first support unit 32 and improve the docking efficiency.

[0037] like Figure 7As shown, the second docking assembly 4 includes a second mounting bracket 41 and a second support unit 42. The lower end of the second mounting bracket 41 is fixedly connected to the upper end of the second displacement assembly 2. The upper end of the second mounting bracket 41 is provided with a third sliding groove 411, and the second support unit 42 is provided on the second mounting bracket 41. The second support unit 42 includes two third side plates 421, a transverse sliding structure 422, and a second arc-shaped block 423. The lower ends of the two third side plates 421 are respectively fixedly connected to the upper end of the second mounting bracket 41, and each third side plate 421 has a fourth sliding groove 4211 vertically arranged in the middle of one side. A transverse sliding structure 422 is provided between the third side plates 421. One side of the transverse sliding structure 422 is slidably connected to the outer periphery of the second arc-shaped block 423. A fourth slider 4231 is provided on each side of the second arc-shaped block 423, and the outer periphery of each fourth slider 4231 is slidably connected to a fourth groove 4211. The displacement trajectory of the second arc-shaped block 423 is limited by the fourth groove 4211 and the fourth slider 4231. The third groove 411 is used to limit the displacement trajectory of the transverse sliding structure 422 to prevent deviation during displacement and potential safety hazards.

[0038] like Figure 8As shown, there are two transverse structures 422, which are parallel to each other and facing each other. Each transverse structure 422 includes a transverse support 4221, a second threaded rod 4222, a third handwheel 4223, and a third connecting plate 4224. Multiple rollers 4228 are evenly distributed circumferentially on the upper end of the transverse support 4221, and the outer periphery of each roller 4228 is rotatably connected to the outer periphery of the second arc-shaped block 423. A third slider 4226 is respectively provided on the lower ends of both sides of the transverse support 4221, and the outer periphery of each third slider 4226 is slidably connected to a third groove 411. A crossbeam 4227 is provided inside the transverse support 4221, and the middle portions of the transverse support 4221 and the crossbeam 4227 are internally threaded to the outer periphery of the second threaded rod 4222. One end of the second threaded rod 4222 is rotatably connected to one side of the third connecting plate 4224, and one end of the third connecting plate 4224 is fixedly connected to... At the upper middle of the second mounting bracket 41, the other end of the second threaded rod 4222 is fixedly connected to the middle of one side of the third handwheel 4223. The transverse structure 422 also includes a first bracket 4225. One end of the first bracket 4225 is fixedly connected to the upper end of the second mounting bracket 41, and the inner ring of the other end of the first bracket 4225 is sleeved around the outer side of the second threaded rod 4222. The first bracket 4225 is located on one side of the third handwheel 4223. By rotating the third handwheel 4223, the transverse structure 422, which is slidably connected to the second mounting bracket 41, moves. At the same time, the roller 4228, which is slidably connected to the outer side of the second arc-shaped block 423, moves forward or backward. This further drives the second arc-shaped block 423, which is slidably connected to the two third side plates 421, to move upward or downward. This achieves the adjustment of the vertical position of the large workpiece, facilitates the docking of the large workpiece, reduces the need for hoisting and adjusting the large workpiece, reduces safety hazards, improves docking efficiency, and reduces manual labor.

[0039] The working process of the large workpiece assembly docking gantry:

[0040] When the large workpiece assembly docking trolley is in operation, the overall position and spacing are first adjusted by the first displacement component 1 and the second displacement component 2: pushing the base 11, the trolley can be moved to the target area by means of the lower wheels 112. If towing is required, a towing device can be connected through the trailer rings 113 on both sides of the base 11; rotating the first handwheel 125 drives the first connecting shaft 124 and the first gear 1241 at the end to rotate, and the second gear 1261 rotates synchronously through chain transmission, thereby driving the third threaded rod 126 to rotate. Since the right connecting frame 122 is connected by the first sliding... Block 1221 is slidably connected in the first groove 111 of the base 11. The rotation of the third threaded rod 126 will push the right connecting frame 122 closer to or away from the fixed left connecting frame 121. At the same time, the second displacement component 2 operates with the same structure to achieve the matching of the spacing between the first docking component 3 and the second docking component 4. Then, the docking position of the first docking component 3 is adjusted: the second handwheel 317 is rotated, which drives the third connecting shaft 316 and the fifth gear 315 to rotate. Through chain transmission, the third gear 312 and the second connecting shaft 313 rotate synchronously, thereby driving the fourth gear 312 to rotate. 14. Rotation; the fourth gear 314 meshes with the rack 3211 at the lower end of the arc-shaped mounting plate 321, pushing the arc-shaped mounting plate 321 to move. At this time, the second slider 3231 at the lower end of the second side plates 323 on both sides of the arc-shaped mounting plate 321 slides along the second slide groove 3111 of the first frame 311, ensuring that the first arc-shaped block 322 at the upper end of the arc-shaped mounting plate 321 moves the lateral position of the large workpiece stably. Finally, the docking adjustment of the second docking assembly 4 is completed: rotate the third handwheel 4223, which drives the fourth threaded rod 4222 to rotate. The fourth threaded rod 4222 rotates in the first bracket. Supported by the third connecting plate 4225 and the third connecting plate 4224, the transverse support 4221 rotates stably, pushing the transverse support 4221 to move along the third slide groove 411 of the second mounting bracket 41 via the third slider 4226 at the lower end. The roller 4228 at the upper end of the transverse support 4221 drives the second arc block 423 to move synchronously. At the same time, the fourth slider 4231 on both sides of the second arc block 423 slides along the fourth slide groove 4211 of the third side plate 421, so that the second arc block 423 drives the large workpiece to move vertically, realizing the alignment of the axes of the two large workpieces to be docked, and finally completing the assembly docking support of the large workpiece.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large workpiece assembly docking frame vehicle, characterized in that: It includes a first displacement component (1), a second displacement component (2), a first docking component (3) and a second docking component (4). The first displacement component (1) and the second displacement component (2) can be set independently of each other. The first displacement component (1) and the second displacement component (2) can move closer to each other or further away from each other. The first docking component (3) is set at the upper end of the first displacement component (1), and the second docking component (4) is set at the upper end of the second displacement component (2). The first displacement component (1) and the second displacement component (2) have the same structure and are arranged opposite each other. The first displacement component (1) includes a base (11) and a connecting unit (12). The upper end of the base (11) is provided with a first sliding groove (111), and the lower end of the base (11) is provided with a wheel (112). The two sides of the base (11) are respectively provided with trailer rings (113) in the horizontal or vertical direction. The connecting unit (12) is provided on the base (11), and the upper end of the connecting unit (12) is fixedly connected to the lower end of the first docking component (3).

2. The heavy workpiece assembly docking frame cart of claim 1, wherein: The first docking assembly (3) includes a first mounting bracket (31) and a first support unit (32). The lower end of the first mounting bracket (31) is mounted on the upper end of the first displacement assembly (1). The upper end of the first mounting bracket (31) is provided with the first support unit (32), and the lower end of the first support unit (32) is slidably connected to the upper end of the first mounting bracket (31).

3. The heavy workpiece assembly docking frame cart of claim 2, wherein: The first mounting frame (31) includes a first frame (311), a third gear (312), a second connecting shaft (313), a fourth gear (314), a fifth gear (315), a third connecting shaft (316), and a second handwheel (317). A second slide groove (3111) is provided on the first frame (311). The middle part of one side of the first frame (311) is rotatably connected to the outer periphery of the middle part of the second connecting shaft (313), and the two ends of the second connecting shaft (313) are respectively fixedly connected to the middle part of one side of the third gear (312) and the fourth gear (314). The other side of the first frame (311) is rotatably connected to the outer periphery of the middle part of the third connecting shaft (316), and the two ends of the third connecting shaft (316) are respectively fixedly connected to the middle part of one side of the fifth gear (315) and the second handwheel (317). The third gear (312) and the fifth gear (315) are connected by a chain to form a synchronous rotation structure. The fourth gear (314) and the second handwheel (317) are located on the outer sides of the first frame (311) respectively, and the fourth gear (314) and the second handwheel (317) form a synchronous rotation structure through the third gear (312), the second connecting shaft (313), the fifth gear (315) and the third connecting shaft (316).

4. The heavy workpiece assembly docking frame cart of claim 3, wherein: The first support unit (32) includes an arc-shaped mounting plate (321), a first arc-shaped block (322), and a second side plate (323). The first arc-shaped block (322) is fixedly mounted on the upper end of the arc-shaped mounting plate (321). A rack (3211) is provided on the inner wall of the lower end of the arc-shaped mounting plate (321), and the outer periphery of the rack (3211) meshes with the outer periphery of one side of the fourth gear (314). A second side plate (323) is provided on each side of the arc-shaped mounting plate (321), and a second slider (3231) is provided at the lower end of each second side plate (323). Each second slider (3231) is slidably connected in a second groove (3111).

5. The large workpiece assembly docking frame cart of claim 1, wherein: The second docking assembly (4) includes a second mounting bracket (41) and a second support unit (42). The lower end of the second mounting bracket (41) is fixedly connected to the upper end of the second displacement assembly (2). The upper end of the second mounting bracket (41) is provided with a third sliding groove (411), and the second support unit (42) is provided on the second mounting bracket (41).

6. The heavy workpiece assembly docking frame cart of claim 5, wherein: The second support unit (42) includes two third side plates (421), a transverse structure (422), and a second arc block (423). The lower ends of the two third side plates (421) are respectively fixedly connected to the upper end of the second mounting bracket (41), and a fourth slide groove (4211) is vertically provided in the middle of one side of each third side plate (421). A transverse structure (422) is provided between the two third side plates (421). The outer periphery of one side of the transverse structure (422) is slidably connected to the outer periphery of the second arc block (423). A fourth slider (4231) is provided on both sides of the second arc block (423), and the outer periphery of each fourth slider (4231) is slidably connected in a fourth slide groove (4211).

7. The heavy workpiece assembly docking frame cart of claim 6, wherein: There are two transverse structures (422), which are parallel to each other and arranged opposite each other. The transverse structure (422) includes a transverse support (4221), a second threaded rod (4222), a third handwheel (4223), and a third connecting plate (4224). Multiple rollers (4228) are evenly distributed circumferentially on the upper end of the transverse support (4221), and the outer periphery of each roller (4228) is respectively rolledly connected to the outer periphery of the second arc-shaped block (423). A third slider (4226) is respectively provided on the lower ends of both sides of the transverse support (4221), and each third slider... The outer periphery of (4226) is slidably connected to a third slide groove (411). A crossbeam (4227) is provided in the transverse support (4221). The middle parts of the transverse support (4221) and the crossbeam (4227) are respectively internally threaded to the outer periphery of the second threaded rod (4222). One end of the second threaded rod (4222) is rotatably connected to one side of the third connecting plate (4224). One end of the third connecting plate (4224) is fixedly connected to the upper middle part of the second mounting bracket (41). The other end of the second threaded rod (4222) is fixedly connected to the middle part of one side of the third handwheel (4223). The transverse structure (422) also includes a first bracket (4225), one end of which is fixedly connected to the upper end of the second mounting bracket (41), the other end of which is innerly sleeved around the outer periphery of the second threaded rod (4222), and the first bracket (4225) is located on one side of the third handwheel (4223).

8. The large workpiece assembly docking trolley according to claim 1, characterized in that: The connecting unit (12) includes a left connecting frame (121), a right connecting frame (122), a side plate (123), a first connecting shaft (124), a first handwheel (125), and a first threaded rod (126). The left connecting frame (121) and the right connecting frame (122) are parallel to each other and are respectively arranged on both sides of the upper end of the base (11). The left connecting frame (121) is fixedly installed on the base (11), and the lower end of the right connecting frame (122) is provided with a first slider (1221), and the periphery of the first slider (1221) is slidably connected in the first slide groove (111). The side plate (123) is fixedly installed on the base (11), and the side plate (123) is located on one side of the outer periphery of the right connecting frame (122). The middle part of the side plate (123) is rotatably connected to the middle periphery of the first connecting shaft (124). One end of the first connecting shaft (124) is fixedly connected to the middle side of the first handwheel (125), and the other end of the first connecting shaft (124) is fixedly connected to the middle side of the first gear (1241). The two ends of the first threaded rod (126) are rotatably connected to the left connecting frame (121) and the side plate (123) respectively, and the first threaded rod (126) is threadedly connected to the middle of the right connecting frame (122). The second gear (1261) is fixedly arranged on the periphery of the first threaded rod (126), and the second gear (1261) is located between the side plate (123) and the right connecting frame (122). The periphery of the second gear (1261) is connected to the periphery of the first gear (1241) through a chain.

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