A cross beam connecting tool

Abstract

The utility model relates to the technical field of aircraft, disclose a kind of cross beam connecting tool, by being provided with cross beam fixed mechanism, longitudinal beam fixed mechanism, joint fixed mechanism and adapter seat on support platform, adapter seat can be moved along support platform, when using, by cross beam fixed mechanism, cross beam is fixed on support platform, by longitudinal beam fixed mechanism, longitudinal beam is fixed on support platform, by joint fixed structure, joint is fixed on adapter seat, then along the width direction of support platform, adapter seat is moved until the end of longitudinal beam is inserted into the interface of joint, then along the length direction of support platform, adapter seat is moved, drives joint and longitudinal beam to move, until the end of cross beam is inserted into the interface of joint, to realize the connection of cross beam, longitudinal beam and joint. Joint can be accurately aligned with cross beam and longitudinal beam, accurate installation, improve bonding accuracy, and simple operation, convenient to use, and can adapt to skeleton of multiple sizes and shapes, strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of aircraft technology, and in particular to a tooling for connecting transverse and longitudinal beams. Background Technology

[0002] In aircraft manufacturing, the choice of joining technology has a significant impact on the weight, strength, and fatigue performance of the overall structure. In addition to welding, riveting, and bolting, adhesive bonding technology is gradually being introduced into the manufacturing of aircraft frames. This technology uses high-performance structural adhesives to bond composite materials or metal components together, enabling surface-to-surface load transfer, significantly improving stress distribution, avoiding localized stress concentration, thereby reducing structural weight and increasing fatigue life.

[0003] The common practice for joining aircraft frames using adhesive bonding involves applying adhesive to the crossbeams, longitudinal beams, and joints, then inserting the crossbeams and longitudinal beams into the joint interfaces to form the frame. Currently, during adhesive bonding, the crossbeams and longitudinal beams are fixed in place, and then the operator aligns the joints with them for connection. This process is not only inconvenient but also prone to misalignment when the joints are aligned with the crossbeams and longitudinal beams, affecting bonding accuracy and resulting in low efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a convenient and accurate tooling for connecting horizontal and vertical beams.

[0005] To achieve the above objectives, this utility model provides a crossbeam and longitudinal beam connection fixture, including a support platform and a crossbeam fixing mechanism, a longitudinal beam fixing mechanism, a joint fixing mechanism, and an adapter seat disposed on the support platform. The crossbeam fixing mechanism is used to fix the crossbeam, the longitudinal beam fixing mechanism is used to fix the longitudinal beam, the joint fixing mechanism is used to fix the joint connecting the crossbeam and the longitudinal beam, the joint fixing mechanism is disposed on the adapter seat, the crossbeam fixing mechanism is disposed along the length direction of the support platform, the longitudinal beam fixing mechanism is disposed along the width direction of the support platform, and the adapter seat is movable along the length and width directions of the support platform.

[0006] As a preferred embodiment, the system further includes a first support member, a second support member, an X-axis guide rail, and a Y-axis guide rail. The first support member and the second support member are disposed on the support platform, with the first support member and the X-axis guide rail arranged along the length direction of the support platform and the second support member and the Y-axis guide rail arranged along the width direction of the support platform. The crossbeam fixing mechanism is disposed on the first support member, the longitudinal beam fixing mechanism is disposed on the second support member, the Y-axis guide rail is disposed on the second support member, the second support member is connected to the X-axis guide rail and moves along the X-axis guide rail, and the adapter seat is connected to the Y-axis guide rail and moves along the Y-axis guide rail.

[0007] As a preferred embodiment, there are two second support members and two or more first support members. The two second support members are arranged in parallel and spaced apart. The first support member is located between the two second support members. Both ends of the second support member are connected to the X-guide rail, and both ends of the second support member are respectively provided with the Y-guide rail, so that one second support member is connected to two adapter seats.

[0008] As a preferred embodiment, both the X-axis guide rail and the Y-axis guide rail include a guide rail base, a track, and a guide block. The guide rail base is provided with a guide groove, and the track is disposed in the guide groove. The guide block includes a first block, a second block, and a roller. The first block and the second block are both L-shaped structures. The vertical portions of the first block and the second block are in contact with the side of the track, and the horizontal portions of the first block and the second block are in contact with the top surface of the track. The roller is located above the track and between the horizontal portions of the first block and the second block, and the roller is rotatably connected to the first block and the second block. As a preferred embodiment, the beam fixing mechanism includes a first beam limiting member and a second beam limiting member. The second beam limiting member includes a first horizontal limiting part and a first vertical limiting part. The first vertical limiting part is vertically connected to the top of the first horizontal limiting part. The first beam limiting member and the first horizontal limiting part are arranged parallel to each other and spaced apart. The beam passes between the first beam limiting member and the first horizontal limiting part, and the first vertical limiting part is located above the beam.

[0009] As a preferred embodiment, the beam fixing mechanism further includes a first positioning pin, and the first beam limiting member is provided with a first positioning hole. The first positioning pin is used to pass through the first positioning hole and connect with the beam.

[0010] As a preferred embodiment, the longitudinal beam fixing mechanism includes a first longitudinal beam limiting member and a second longitudinal beam limiting member. The first longitudinal beam limiting member and the second longitudinal beam limiting member include a second horizontal limiting part and a second vertical limiting part. The second vertical limiting part is vertically connected to the top of the second horizontal limiting part. The second horizontal limiting part is parallel to and spaced apart from the first longitudinal beam limiting member. The longitudinal beam passes between the first longitudinal beam limiting member and the second horizontal limiting part. The second vertical limiting part is located above the longitudinal beam.

[0011] As a preferred embodiment, the longitudinal beam fixing mechanism further includes a second positioning pin, and the second longitudinal beam limiting member is provided with a second positioning hole. The second positioning pin is used to pass through the second positioning hole and connect with the longitudinal beam.

[0012] As a preferred embodiment, the connector fixing mechanism includes a pin, and the adapter is provided with a socket. The pin is used to pass through the process hole of the connector and be inserted into the socket.

[0013] As a preferred embodiment, the support platform is equipped with casters.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a crossbeam fixing mechanism, a longitudinal beam fixing mechanism, a joint fixing mechanism, and an adapter seat on a support platform. The adapter seat can move along the support platform. In use, the crossbeam is fixed to the support platform by the crossbeam fixing mechanism, the longitudinal beam is fixed to the support platform by the longitudinal beam fixing mechanism, and the joint is fixed to the adapter seat by the joint fixing mechanism. Then, the adapter seat moves along the width direction of the support platform until the end of the longitudinal beam is inserted into the interface of the joint. Next, the adapter seat moves along the length direction of the support platform, causing the joint and longitudinal beam to move until the end of the crossbeam is inserted into the interface of the joint, thus achieving the connection of the crossbeam, longitudinal beam, and joint. The crossbeam fixing mechanism is positioned along the length direction of the support platform, the longitudinal beam fixing mechanism along the width direction of the support platform, and the adapter seat moves along both the length and width directions of the support platform. This allows for precise alignment of the joint fixed to the adapter seat with the crossbeam and longitudinal beam, ensuring accurate installation, improving bonding precision, and providing simple and convenient operation. It is also adaptable to various sizes and shapes of frames, demonstrating strong versatility. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the crossbeam and longitudinal beam connection fixture according to an embodiment of this utility model.

[0016] Figure 2 This is an enlarged view of the crossbeam and longitudinal beam connection fixture according to an embodiment of this utility model.

[0017] In the diagram, 1-crossbeam; 2-longitudinal beam; 3-joint; 4-support platform; 5-adapter seat; 6-first support component; 7-second support component; 8-X-guide rail; 9-Y-guide rail; 10-guide rail base; 1001-guide groove; 11-rail; 12-guide block; 1201-first block; 1202-second block; 13-roller; 14-moving wheel; 15-first crossbeam limiting component; 16-second crossbeam limiting component; 1601-first horizontal limiting part; 1602-first vertical limiting part; 17-first longitudinal beam limiting component; 18-second longitudinal beam limiting component; 1801-second horizontal limiting part; 1802-second vertical limiting part; 19-first positioning pin; 20-second positioning pin; 21-pin. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] 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.

[0021] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] Example 1 like Figure 1 and Figure 2As shown, a preferred embodiment of the present invention provides a crossbeam and longitudinal beam connection fixture, including a support platform 4 and a crossbeam fixing mechanism, a longitudinal beam fixing mechanism, a joint fixing mechanism, and an adapter seat 5 disposed on the support platform 4. The crossbeam fixing mechanism is used to fix the crossbeam 1, the longitudinal beam fixing mechanism is used to fix the longitudinal beam 2, the joint fixing mechanism is used to fix the joint 3 connecting the crossbeam 1 and the longitudinal beam 2, the joint fixing mechanism is disposed on the adapter seat 5, the crossbeam fixing mechanism is disposed along the length direction of the support platform 4, the longitudinal beam fixing mechanism is disposed along the width direction of the support platform 4, and the adapter seat 5 is movable along the length and width directions of the support platform 4. In this embodiment, a crossbeam fixing mechanism, a longitudinal beam fixing mechanism, a connector fixing mechanism, and an adapter 5 are provided on the support platform 4. The adapter 5 can move along the support platform 4. In use, the crossbeam is fixed to the support platform 4 by the crossbeam fixing mechanism, the longitudinal beam is fixed to the support platform 4 by the longitudinal beam fixing mechanism, and the connector is fixed to the adapter 5 by the connector fixing structure. Then, the adapter 5 is moved along the width direction of the support platform 4 until the end of the longitudinal beam 2 is inserted into the interface of the connector 3. Then, the adapter 5 is moved along the length direction of the support platform 4, which drives the connector 3 and the longitudinal beam 2 to move until the end of the crossbeam 1 is inserted into the interface of the connector 3, thereby realizing the connection of the crossbeam 1, the longitudinal beam 2, and the connector 3. By setting the crossbeam fixing mechanism along the length of the support platform 4 and the longitudinal beam fixing mechanism along the width of the support platform 4, and by setting the adapter seat 5 that moves along the length and width of the support platform 4, the joint 3 fixed on the adapter seat 5 can be precisely aligned with the crossbeam 1 and the longitudinal beam 2, ensuring accurate installation, improving bonding accuracy, and being simple to operate and easy to use. It can also adapt to skeletons of various sizes and shapes, making it highly adaptable.

[0023] Specifically, the tooling also includes a first support member 6, a second support member 7, an X-axis guide rail 8, and a Y-axis guide rail 9. The first support member 6 and the second support member 7 are mounted on the support platform 4, with the first support member 6 and the X-axis guide rail 8 arranged along the length of the support platform 4, and the second support member 7 and the Y-axis guide rail 9 arranged along the width of the support platform 4. A crossbeam fixing mechanism is mounted on the first support member 6, a longitudinal beam fixing mechanism is mounted on the second support member 7, and the Y-axis guide rail 9 is mounted on the second support member 7. The second support member 7 is connected to the X-axis guide rail 8 and moves along the X-axis guide rail 8. The adapter seat 5 is connected to the Y-axis guide rail 9 and moves along the Y-axis guide rail 9. In use, the crossbeam 1 is placed on the first support member 6, and the longitudinal beam 2 is placed on the second support member 7. The adapter seat 5 moves closer to or away from the longitudinal beam 2 along the Y-axis guide rail 9, and then the second support member 7 is pushed, moving closer to or away from the crossbeam 1 along the X-axis guide rail 8.

[0024] In this embodiment, there are two second support members 7 and two or more first support members 6. The two second support members 7 are arranged in parallel and spaced apart. The first support member 6 is located between the two second support members 7. Both ends of the second support member 7 are connected to X-guide rails 8, and both ends of the second support member 7 are respectively provided with Y-guide rails 9, so that one second support member 7 is connected to two adapter seats 5, which are used to connect the two crossbeams 1 and the two longitudinal beams 2 into a U-shaped frame.

[0025] Example 2 The difference between this embodiment and Embodiment 1 is that, based on Embodiment 1, this embodiment provides a further explanation of the tooling.

[0026] In this embodiment, both the X-axis guide rail 8 and the Y-axis guide rail 9 include a guide rail base 10, a track 11, and a guide block 12. The guide rail base 10 has a guide groove 1001, and the track 11 is disposed within the guide groove 1001. The guide block 12 includes a first block 1201, a second block 1202, and a roller 13. Both the first block 1201 and the second block 1202 have an L-shaped structure. The vertical portions of the first block 1201 and the second block 1202 are in contact with the side of the track 11, and the horizontal portions of the first block 1201 and the second block 1202 are in contact with the top surface of the track 11. The roller 13 is located above the track 11 and between the horizontal portions of the first block 1201 and the second block 1202, and is rotatably connected to the first block 1201 and the second block 1202. The track 11 is disposed within the guide groove 1001 of the guide rail base 10, which limits the travel distance. The vertical portions of the first block 1201 and the second block 1202 of the guide block 12 are in contact with the side of the track 11, and the horizontal portions are in contact with the top surface of the track 11, thereby providing guidance and preventing deviation. The rollers 13 provided can reduce friction and lower the resistance to movement.

[0027] In addition, the support platform 4 in this embodiment is connected to the movable wheels 14, which can facilitate the movement of the tooling.

[0028] The other structures in this embodiment are the same as in Embodiment 1, and will not be described again here.

[0029] Example 3 The difference between this embodiment and embodiment two is that, based on embodiment two, this embodiment further explains the tooling.

[0030] In this embodiment, the crossbeam fixing mechanism includes a first crossbeam limiting member 15 and a second crossbeam limiting member 16. The second crossbeam limiting member 16 includes a first horizontal limiting part 1601 and a first vertical limiting part 1602. The first vertical limiting part 1602 is vertically connected to the top of the first horizontal limiting part 1601. The first crossbeam limiting member 15 and the first horizontal limiting part 1601 are arranged parallel to each other and spaced apart. The crossbeam 1 passes through the space between the first crossbeam limiting member 15 and the first horizontal limiting part 1601. The first vertical limiting part 1602 is located above the crossbeam 1. The first crossbeam limiting member 15 and the first horizontal limiting part 1601 restrict the crossbeam 1 from moving back and forth, and the first vertical limiting part 1602 restricts the crossbeam 1 from jumping up and down.

[0031] In addition, the crossbeam fixing mechanism also includes a first positioning pin 19. The first crossbeam limiting member 15 has a first positioning hole, through which the first positioning pin 19 passes and connects to the crossbeam 1. For a crossbeam 1 with a process hole, the first positioning pin 19 passes through the first positioning hole and is inserted into the process hole of the crossbeam 1, thus fixing the crossbeam 1. For a crossbeam 1 without a process hole, the first positioning pin 19 is threaded into the first positioning hole, and the first positioning pin 19 abuts against the crossbeam 1, thus fixing the crossbeam 1.

[0032] The longitudinal beam fixing mechanism includes a first longitudinal beam limiting member 17 and a second longitudinal beam limiting member 18. The second longitudinal beam limiting member 18 includes a second horizontal limiting part 1801 and a second vertical limiting part 1802. The second vertical limiting part is vertically connected to the top of the second horizontal limiting part 1801. The second horizontal limiting part 1801 is parallel and spaced apart from the first longitudinal beam limiting member 17. The longitudinal beam 2 passes between the first longitudinal beam limiting member 17 and the second horizontal limiting part 1801, and the second vertical limiting part 1802 is located above the longitudinal beam 2. The first longitudinal beam limiting member 17 and the second horizontal limiting part 1801 restrict the left and right movement of the longitudinal beam 2, while the second vertical limiting part 1802 restricts the up and down movement of the longitudinal beam 2.

[0033] The longitudinal beam fixing mechanism also includes a second positioning pin 20. The second longitudinal beam limiting member 18 has a second positioning hole, through which the second positioning pin 20 passes and connects with the longitudinal beam 2. For longitudinal beams 2 with process holes, the second positioning pin 20 passes through the second positioning hole and is inserted into the process hole of the longitudinal beam 2, thus fixing the longitudinal beam 2. For longitudinal beams 2 without process holes, the second positioning pin 20 is threaded into the second positioning hole, and the second positioning pin 20 abuts against the longitudinal beam 2, thus fixing the longitudinal beam 2.

[0034] In addition, the connector fixing mechanism in this embodiment includes a pin 21, and the adapter 5 is provided with a socket. The pin 21 is used to pass through the process hole of the connector 3 and be inserted into the socket. Since the connector 3 needs to be connected to other connectors 3, process holes are usually opened, so the pin 21 can be used for connection.

[0035] The other structures in this embodiment are the same as in Embodiment 2, and will not be described again here.

[0036] The working process of this utility model is as follows: The crossbeam 1 is passed between the first crossbeam limiting member 15 and the first horizontal limiting part 1601, placing the crossbeam 1 on the first support member 6. The first positioning pin 19 is passed through the first positioning hole until it is inserted into the process hole of the crossbeam 1, thus placing and fixing the crossbeam 1. The longitudinal beam 2 is passed between the first longitudinal beam limiting member 17 and the second horizontal limiting part 1801, placing the longitudinal beam 2 on the second support member 7. The second positioning pin 20 is passed through the second positioning hole until it is inserted into the process hole of the longitudinal beam 2, thus placing and fixing the longitudinal beam 2. The process hole of the connector 3 is aligned with the insertion hole of the adapter 5, and a pin 21 is passed through the process hole of the connector 3 and inserted into the insertion hole, thus placing and fixing the connector 3. Push the adapter 5, which moves along the Y-rail to the longitudinal beam 2 until the end of the longitudinal beam 2 is inserted into the interface of the connector 3. Then push the second support 7, which moves along the X-rail to the crossbeam 1 until the end of the crossbeam 1 is inserted into the interface of the connector 3, thus connecting the crossbeam 1, the longitudinal beam 2, and the connector 3. When connecting the U-shaped frame, pushing the second support 7 can simultaneously connect two connectors 3 to two crossbeams 1, further improving efficiency. Moreover, the movement of the X-rail can accommodate crossbeams 1 of different lengths, and the movement of the Y-rail can accommodate longitudinal beams 2 of different lengths, thus enabling the connection of frames of different sizes and shapes.

[0037] In summary, this utility model embodiment provides a crossbeam and longitudinal beam connection fixture, which is provided on a support platform 4 by setting a crossbeam fixing mechanism, a longitudinal beam fixing mechanism, a joint fixing mechanism, and an adapter seat 5. The adapter seat 5 can move along the support platform 4. In use, the crossbeam is fixed to the support platform 4 by the crossbeam fixing mechanism, the longitudinal beam is fixed to the support platform 4 by the longitudinal beam fixing mechanism, and the joint is fixed to the adapter seat 5 by the joint fixing structure. Then, the adapter seat 5 is moved along the width direction of the support platform 4 until the end of the longitudinal beam 2 is inserted into the interface of the joint 3. Then, the adapter seat 5 is moved along the length direction of the support platform 4, which drives the joint 3 and the longitudinal beam 2 to move until the end of the crossbeam 1 is inserted into the interface of the joint 3, thereby realizing the connection of the crossbeam 1, the longitudinal beam 2, and the joint 3. By setting the crossbeam fixing mechanism along the length of the support platform 4 and the longitudinal beam fixing mechanism along the width of the support platform 4, and by setting the adapter seat 5 that moves along the length and width of the support platform 4, the joint 3 fixed on the adapter seat 5 can be precisely aligned with the crossbeam 1 and the longitudinal beam 2, ensuring accurate installation, improving bonding accuracy, and being simple to operate and easy to use. It can also adapt to skeletons of various sizes and shapes, making it highly adaptable.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A tooling for connecting transverse and longitudinal beams, characterized in that, The system includes a support platform (4) and a crossbeam fixing mechanism, a longitudinal beam fixing mechanism, a joint fixing mechanism, and an adapter seat (5) disposed on the support platform (4). The crossbeam fixing mechanism is used to fix the crossbeam (1), the longitudinal beam fixing mechanism is used to fix the longitudinal beam (2), the joint fixing mechanism is used to fix the joint (3) connecting the crossbeam (1) and the longitudinal beam (2), the joint fixing mechanism is disposed on the adapter seat (5), the crossbeam fixing mechanism is disposed along the length direction of the support platform (4), the longitudinal beam fixing mechanism is disposed along the width direction of the support platform (4), and the adapter seat (5) can move along the length and width directions of the support platform (4).

2. The crossbeam and longitudinal beam connection fixture according to claim 1, characterized in that, It also includes a first support member (6), a second support member (7), an X-axis guide rail (8), and a Y-axis guide rail (9). The first support member (6) and the second support member (7) are disposed on the support platform (4), and the first support member (6) and the X-axis guide rail (8) are disposed along the length direction of the support platform (4). The second support member (7) and the Y-axis guide rail (9) are disposed along the width direction of the support platform (4). The crossbeam fixing mechanism is disposed on the first support member (6), the longitudinal beam fixing mechanism is disposed on the second support member (7), the Y-axis guide rail (9) is disposed on the second support member (7), the second support member (7) is connected to the X-axis guide rail (8) and moves along the X-axis guide rail (8), and the adapter seat (5) is connected to the Y-axis guide rail (9) and moves along the Y-axis guide rail (9).

3. The crossbeam and longitudinal beam connection fixture according to claim 2, characterized in that, Two second support members (7) are provided, and two or more first support members (6) are provided. The two second support members (7) are arranged in parallel and spaced apart. The first support member (6) is located between the two second support members (7). Both ends of the second support member (7) are connected to the X guide rail (8), and both ends of the second support member (7) are respectively provided with the Y guide rail (9), so that one second support member (7) is connected to two adapter seats (5).

4. The crossbeam and longitudinal beam connection fixture according to claim 2, characterized in that, Both the X-guide rail (8) and the Y-guide rail (9) include a guide rail base (10), a track (11), and a guide block (12). The guide rail base (10) is provided with a guide groove (1001), and the track (11) is disposed in the guide groove (1001). The guide block (12) includes a first block (1201), a second block (1202), and a roller (13). The first block (1201) and the second block (1202) are both L-shaped structures. The vertical portion of the second block (1202) is in contact with the side of the track (11), the horizontal portions of the first block (1201) and the second block (1202) are in contact with the top surface of the track (11), the roller (13) is located above the track (11) and between the horizontal portions of the first block (1201) and the second block (1202), and the roller (13) is rotatably connected to the first block (1201) and the second block (1202).

5. The crossbeam and longitudinal beam connection fixture according to claim 1, characterized in that, The beam fixing mechanism includes a first beam limiting member (15) and a second beam limiting member (16). The second beam limiting member (16) includes a first horizontal limiting part (1601) and a first vertical limiting part (1602). The first vertical limiting part (1602) is vertically connected to the top of the first horizontal limiting part (1601). The first beam limiting member (15) and the first horizontal limiting part (1601) are arranged in parallel and spaced apart. The beam (1) passes through the first beam limiting member (15) and the first horizontal limiting part (1601). The first vertical limiting part (1602) is located above the beam (1).

6. The crossbeam and longitudinal beam connection fixture according to claim 5, characterized in that, The beam fixing mechanism also includes a first positioning pin (19), and the first beam limiting member (15) is provided with a first positioning hole. The first positioning pin (19) is used to pass through the first positioning hole and connect with the beam (1).

7. The crossbeam and longitudinal beam connection fixture according to claim 1, characterized in that, The longitudinal beam fixing mechanism includes a first longitudinal beam limiting member (17) and a second longitudinal beam limiting member (18). The first longitudinal beam limiting member (17) and the second longitudinal beam limiting member (18) include a second horizontal limiting part (1801) and a second vertical limiting part (1802). The second vertical limiting part is vertically connected to the top of the second horizontal limiting part (1801). The second horizontal limiting part (1801) is parallel to and spaced apart from the first longitudinal beam limiting member (17). The longitudinal beam (2) passes between the first longitudinal beam limiting member (17) and the second horizontal limiting part (1801). The second vertical limiting part (1802) is located above the longitudinal beam (2).

8. The crossbeam and longitudinal beam connection fixture according to claim 7, characterized in that, The longitudinal beam fixing mechanism also includes a second positioning pin (20), and the second longitudinal beam limiting member (18) is provided with a second positioning hole. The second positioning pin (20) is used to pass through the second positioning hole and connect with the longitudinal beam (2).

9. The crossbeam and longitudinal beam connection fixture according to claim 1, characterized in that, The connector fixing mechanism includes a pin (21), and the adapter (5) is provided with a socket. The pin (21) is used to pass through the process hole of the connector (3) and be inserted into the socket.

10. The crossbeam and longitudinal beam connection fixture according to claim 1, characterized in that, The support platform (4) is connected to a moving wheel (14).

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