Large sheet metal part splicing and assembling table

Abstract

The utility model relates to the field of splicing assembly tables, and discloses a large sheet metal part splicing assembly table which comprises a bottom plate, a buffer pad is arranged at the center of the lower end face of the bottom plate, first assembly tables are arranged at the positions, close to the two sides, of the center of the upper end face of the bottom plate, and second assembly tables are arranged at the upper ends of the two first assembly tables. Buffering and damping structures are arranged between the two first assembling tables and the two second assembling tables, and four mounting grooves are formed in the front portions and the rear portions of the centers of one sides of the upper end faces of the two second assembling tables and the lower end faces of the two first assembling tables in a rectangular mode. According to the utility model, through the combination of the compression rod and the compression spring, the effective impact and vibration absorption is realized, the assembly table is allowed to generate relative displacement under the action of external force, the impact force can be absorbed and relieved through the compression and stretching actions of the compression spring, and the influence of vibration on the assembly precision is reduced; and by using a third bolt, mounting and dismounting become simple and rapid.

Description

Technical Field

[0001] The utility model relates to the field of splicing and assembling tables, in particular to a large sheet metal part splicing and assembling table. Background Art

[0002] The large sheet metal splicing and assembly table is a device used for processing large metal sheets. It plays an important role in modern industrial production, especially in the production of automobiles, aviation, shipbuilding and large-scale mechanical equipment. The processing technology of sheet metal includes shearing, stamping, bending, welding and other processes, and the splicing and assembly table is the key equipment used to assemble and splice large sheet metal parts in these processes.

[0003] Since traditional large sheet metal splicing and assembly tables may not have an effective impact and vibration absorption mechanism, vibrations are directly transmitted to the sheet metal during the processing, affecting the assembly accuracy and quality. They may lack sufficient protective measures and are easily hit by tools or parts, thereby damaging the assembly table or the sheet metal being processed. Therefore, technical personnel in this field provide a large sheet metal splicing and assembly table to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to address the shortcomings of the prior art and to propose a large sheet metal assembly platform. By using a combination of compression rods and compression springs, effective impact and vibration absorption is achieved, allowing the assembly platform to produce relative displacement when subjected to external forces. The compression and extension of the compression springs can absorb and alleviate the impact force, reducing the impact of vibration on assembly accuracy. This not only improves assembly quality but also facilitates maintenance and replacement of the buffer and shock-absorbing structure. The use of a third bolt makes the installation and disassembly of the structure simple and quick. The use of a protective plate and protective side plates, and their firm connection by the first bolt, constitute a comprehensive protection system that effectively prevents tools, parts, etc. from accidentally hitting the assembly platform, thereby protecting the assembly platform and the sheet metal parts being assembled from damage. The provision of a protective layer further enhances the protective effect and ensures the stability and durability of the assembly platform. The first and second assembly platforms are quickly spliced ​​and separated by the connecting plate and the second bolt. This modular design allows the first and second assembly platforms to be adjusted and reorganized according to different work requirements, providing a high degree of flexibility. The impact pad can absorb external impact, disperse pressure, reduce wear of the assembly platform, and extend its service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large sheet metal splicing assembly table, comprising a bottom plate, a buffer pad is provided at the center of the lower end surface of the bottom plate, a first assembly table is provided at the center of the upper end surface of the bottom plate, and a second assembly table is provided at the center on both sides, two first assembly tables are provided with a second assembly table at the upper end, a buffer shock-absorbing structure is provided between the two first assembly tables and the two second assembly tables, four mounting grooves are arranged in a rectangular shape at the center of one side of the upper end surface and the lower end surface of the two first assembly tables, a protective layer is provided on the outer wall of the two first assembly tables and the two second assembly tables, a protective structure is provided on the outer wall of the protective layer, a connecting plate is provided at the center of one side wall of the two first assembly tables and the two second assembly tables, and a second bolt is provided at the center of one side wall of the two connecting plates on one side;

[0006] Through the above technical solution, by using a combination of compression rods and compression springs, effective impact and vibration absorption is achieved, allowing the assembly table to produce relative displacement when subjected to external force. The compression and stretching action of the compression spring can absorb and alleviate the impact force, reducing the impact of vibration on assembly accuracy, not only improving the assembly quality, but also facilitating the maintenance and replacement of the buffer and shock-absorbing structure, because the use of the third bolt makes the installation and disassembly of the structure simple and quick, through the use of protective plates and protective side plates, and through the first bolts to firmly connect them, a comprehensive protection system is formed, which effectively prevents tools, parts, etc. from accidentally hitting the assembly table, thereby protecting the assembly table and the sheet metal parts being assembled from damage. The setting of the protective layer further enhances the protection effect and ensures the stability and durability of the assembly table. The first assembly table and the second assembly table are quickly spliced ​​and separated by the connecting plate and the second bolt. This modular design allows the first assembly table and the second assembly table to be adjusted and reorganized according to different work requirements, providing a high degree of flexibility, and the impact of external forces can be absorbed by the impact pad, dispersing pressure, reducing wear of the assembly table, and extending its service life.

[0007] Furthermore, the protective structure includes two protective plates, two protective side plates and eight first bolts, the two protective plates are respectively arranged at the center of the front end surface and the center of the rear end surface of the protective layer, the two protective side plates are respectively arranged at the center of the two side walls of the protective layer, and the eight first bolts are respectively grouped into four, and the two groups of first bolts are respectively arranged in a rectangular shape on one side wall of the two protective side plates;

[0008] Through the above technical solution, the protective plate and protective side panels can effectively prevent external objects from colliding with and damaging the assembly table. During the production process, tools, parts and other objects may accidentally hit the assembly table. The protective structure can reduce the impact of such impact on the assembly table and the sheet metal parts being assembled. The protective layer further enhances the protective effect and provides comprehensive protection for the first assembly table and the second assembly table. The protective plate and protective side panels are firmly connected together by the first bolt, thereby improving the overall stability of the protective structure.

[0009] Furthermore, the buffer shock absorbing structure includes eight mounting plates, four compression rods, four compression springs and eight third bolts. The eight mounting plates are respectively grouped into four groups, and the two groups of mounting plates are arranged in a rectangular shape on the upper end surface of the first assembly table and the lower end surface of the second assembly table. The four compression rods are respectively arranged at the center of the upper end surfaces of the four lower mounting plates, and the other ends of the four compression rods are respectively fixedly connected to the lower end surfaces of the four upper mounting plates. The four compression springs are respectively sleeved on the outer side walls of the four compression rods, and the eight third bolts are respectively arranged at the lower center of the eight mounting grooves.

[0010] Through the above technical solution, when external force acts on the first assembly table and the second assembly table, the first assembly table and the second assembly table will produce relative displacement, the compression rod will telescope between the mounting plates, and the compression spring will be compressed or stretched, thereby absorbing and alleviating the impact and vibration caused by the external force. The combination of the compression rod and the compression spring can effectively absorb and alleviate the impact and vibration from all directions during the splicing and assembly of sheet metal parts, which can reduce the impact of vibration on assembly accuracy and ensure the splicing quality of sheet metal parts on the first assembly table and the second assembly table. The third bolt makes the installation and disassembly of the buffer shock-absorbing structure more convenient. When the buffer shock-absorbing structure needs to be maintained or replaced, the third bolt can be easily removed to separate the buffer shock-absorbing structure from the first assembly table and the second assembly table.

[0011] Furthermore, one end portion of the four third bolts at the upper position sequentially passes through the lower inner walls of the four mounting grooves at the upper position, the upper end surfaces of the two second assembly platforms and the upper end surface of the mounting plate to pass into the interior of the mounting plate, and the end portions are respectively threadedly connected to the interior of the four mounting plates at the upper position; one end portion of the four third bolts at the lower position sequentially passes through the upper inner walls of the four mounting grooves at the lower position, the lower end surfaces of the two first assembly platforms and the lower end surface of the mounting plate to pass into the interior of the mounting plate, and the end portions are respectively threadedly connected to the interior of the four mounting plates at the lower position;

[0012] Through the above technical solution, the buffering and shock-absorbing structure is fixed to the first assembly platform and the second assembly platform through this connection method, and will not become loose due to vibration or external force during operation.

[0013] Furthermore, the eight first bolts and baffles respectively pass through the one side wall of the two protective plates and the one side wall of the two protective side plates in sequence and pass into the interior of the two protective side plates, and the ends are all threadedly connected to the interior of the two protective side plates;

[0014] Through the above technical solution, the protective plate and the protective side plate are fixed together through this connection method to form a protective structure, ensuring that the various components of the protective structure are tightly connected, which can effectively provide external protection for the first assembly station and the second assembly station.

[0015] Furthermore, two of the second bolts respectively penetrate through one side wall of the four second bolts in sequence and pass into the interior of the second bolt on the other side, and the ends are threadedly connected to the interior of the second bolt on the other side;

[0016] Through the above technical solution, this connection method may be used to connect specific components or structures to ensure that the connected components are firmly connected and will not loosen due to external force or vibration. When the connected components need to be maintained, replaced or adjusted, the second bolt can be easily unscrewed to perform the corresponding operation.

[0017] Furthermore, the cushion and the protective layer are both made of rubber;

[0018] Through the above technical solution, the rubber has good elasticity and resilience, can effectively absorb and disperse external force impact, and the rubber material has good wear resistance and durability, and can withstand long-term use and friction.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the present invention, effective shock and vibration absorption is achieved by using a combination of compression rods and compression springs in the large sheet metal splicing assembly table, allowing the assembly table to produce relative displacement when subjected to external force. The compression and stretching actions of the compression springs can absorb and alleviate the impact force, reducing the impact of vibration on assembly accuracy, which not only improves the assembly quality, but also facilitates the maintenance and replacement of the buffer and shock-absorbing structure, because the use of the third bolt makes the installation and disassembly of the structure simple and quick.

[0021] 2. In the present invention, a comprehensive protection system is formed by using a protective plate and protective side plates and firmly connecting them through the first bolt, which effectively prevents tools, parts, etc. from accidentally hitting the assembly table, thereby protecting the assembly table and the sheet metal parts being assembled from damage. The provision of the protective layer further enhances the protection effect and ensures the stability and durability of the assembly table.

[0022] 3. In the present invention, the first assembly table and the second assembly table are quickly connected and separated by the connecting plate and the second bolt. This modular design allows the first assembly table and the second assembly table to be adjusted and reorganized according to different work requirements, providing a high degree of flexibility. In addition, the impact pad can absorb external force impact, disperse pressure, reduce wear of the assembly table, and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a large sheet metal assembly platform proposed in the present invention;

[0024] Figure 2 This is a three-dimensional cross-sectional view of a large sheet metal assembly platform proposed in the present invention;

[0025] Figure 3 This is a side sectional view of a large sheet metal assembly platform proposed by the present invention;

[0026] Figure 4 for Figure 3 Enlarged schematic diagram of point A in the middle.

[0027] Legend:

[0028] 1. Bottom plate; 2. Buffer pad; 3. Protective structure; 301. Protective plate; 302. Protective side plate; 303. First bolt; 4. First assembly table; 5. Connecting plate; 6. Second bolt; 7. Protective layer; 8. Buffer and shock-absorbing structure; 801. Mounting plate; 802. Compression rod; 803. Compression spring; 804. Third bolt; 9. Mounting slot; 10. Second assembly table. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1-4, the utility model provides an embodiment: a large sheet metal splicing assembly table, including a base plate 1, a buffer pad 2 is provided at the center of the lower end surface of the base plate 1, a first assembly table 4 is provided at the center on both sides of the upper end surface of the base plate 1, a second assembly table 10 is provided on the upper ends of the two first assembly tables 4, a buffer shock absorbing structure 8 is provided between the two first assembly tables 4 and the two second assembly tables 10, four mounting grooves 9 are arranged in a rectangular shape at the front and rear of the upper end surfaces of the two second assembly tables 10 and the lower end surfaces of the two first assembly tables 4, the outer walls of the two first assembly tables 4 and the two second assembly tables 10 are provided with a protective layer 7, the outer wall of the protective layer 7 is provided with a protective structure 3, a connecting plate 5 is provided at the center of one side wall of the two first assembly tables 4 and the two second assembly tables 10, and a second bolt 6 is provided at the center of the one side wall of the two connecting plates 5 on one side.

[0031] When the entire assembly platform is impacted by external force, the buffer pad 2 can absorb part of the impact force through its own elastic deformation, reducing the vibration transmitted to the bottom plate 1, the first assembly platform 4 and the second assembly platform 10. The second assembly platform 10 is used to place and splice large sheet metal parts. The buffer and shock-absorbing structure 8 is arranged between the first assembly platform 4 and the second assembly platform 10. When external force acts on the assembly platform, the buffer and shock-absorbing structure 8 can expand and contract and deform, absorb and alleviate the impact and vibration caused by the external force, and protect the splicing accuracy of the sheet metal parts. The installation groove 9 is used to install and fix the buffer and shock-absorbing structure 8 and connect other components. The protective layer 7 can protect the first assembly platform 4 and the second assembly platform 10 to prevent collision and wear of external objects. The protective structure 3 further enhances the protective performance of the assembly platform to prevent accidental damage during the splicing and assembly of sheet metal parts. The connecting plate 5 is used to connect the two first assembly platforms 4 and the two second assembly platforms 10 so that they can work together. The second bolt 6 is used to fix the connecting plate 5 to ensure the overall stability of the first assembly platform 4 and the second assembly platform 10.

[0032] The two second bolts 6 respectively pass through the one side wall of the four second bolts 6 to the inside of the second bolt 6 on the other side, and the end parts are threadedly connected to the inside of the second bolt 6 on the other side. This connection method may be used to connect specific components or structures to ensure that the connected components are firmly connected and will not loosen due to external force or vibration. When the connected components need to be maintained, replaced or adjusted, the second bolts 6 can be easily unscrewed and the corresponding operations can be performed. The buffer pad 2 and the protective layer 7 are both made of rubber. Rubber has good elasticity and resilience, can effectively absorb and disperse external force impact, and the rubber material has good wear resistance and durability, and can withstand long-term use and friction.

[0033] The protective structure 3 includes two protective plates 301, two protective side plates 302 and eight first bolts 303. The two protective plates 301 are respectively arranged at the center of the front end face and the center of the rear end face of the protective layer 7, and the two protective side plates 302 are respectively arranged at the center of the two side walls of the protective layer 7. The eight first bolts 303 are respectively grouped into four, and the two groups of first bolts 303 are respectively arranged in a rectangular shape on one side wall of the two protective side plates 302. The protective plates 301 and the protective side plates 302 can effectively prevent external objects from colliding with and damaging the assembly table. During the production process, tools, parts and other objects may accidentally collide with the assembly table. The protective structure 3 can reduce the impact of such collisions on the assembly table and the sheet metal parts being assembled. The protective layer 7 is The protective effect is enhanced in one step, providing comprehensive protection for the first assembly table 4 and the second assembly table 10. The protective plate 301 and the protective side plate 302 are firmly connected together by the first bolt 303, thereby improving the overall stability of the protective structure 3. The eight first bolts 303 and a baffle respectively penetrate the one side wall of the two protective plates 301 and the one side wall of the two protective side plates 302 in sequence and pass into the interior of the two protective side plates 302, and the ends are all threadedly connected to the interior of the two protective side plates 302. Through this connection method, the protective plate 301 and the protective side plate 302 are fixed together to form the protective structure 3, ensuring that the various components of the protective structure 3 are tightly connected, which can effectively provide external protection for the first assembly table 4 and the second assembly table 10.

[0034] The buffer shock absorbing structure 8 includes eight mounting plates 801, four compression rods 802, four compression springs 803 and eight third bolts 804. The eight mounting plates 801 are grouped into four groups. The two groups of mounting plates 801 are arranged in a rectangular shape and are arranged on the upper end surface of the first assembly platform 4 and the lower end surface of the second assembly platform 10. The four compression rods 802 are respectively arranged at the center of the upper end surfaces of the four mounting plates 801 at the lower position. The other ends of the four compression rods 802 are respectively fixedly connected to the lower end surfaces of the four mounting plates 801 at the upper position. The four compression springs 803 are respectively sleeved on the outer side walls of the four compression rods 802. The eight third bolts 804 are respectively arranged at the lower center of the eight mounting slots 9. When there is When external force acts on the first assembly table 4 and the second assembly table 10, the first assembly table 4 and the second assembly table 10 will produce relative displacement, the compression rod 802 will telescope between the mounting plate 801, and the compression spring 803 will be compressed or stretched, thereby absorbing and alleviating the impact and vibration caused by the external force. The combination of the compression rod 802 and the compression spring 803 can effectively absorb and alleviate the impact and vibration from all directions during the splicing and assembly of sheet metal parts, which can reduce the impact of vibration on assembly accuracy and ensure the splicing quality of sheet metal parts on the first assembly table 4 and the second assembly table 10. The third bolt 804 makes the installation and disassembly of the buffer and shock-absorbing structure 8 more convenient.

[0035] When the buffer shock-absorbing structure 8 needs to be maintained or replaced, the third bolt 804 can be easily removed to separate the buffer shock-absorbing structure 8 from the first assembly platform 4 and the second assembly platform 10. The ends of the four third bolts 804 at the upper position pass through the lower inner walls of the four mounting grooves 9 at the upper position, the upper end surfaces of the two second assembly platforms 10 and the upper end surface of the mounting plate 801 in turn, and are passed to the interior of the mounting plate 801, and the ends are respectively threadedly connected to the interior of the four mounting plates 801 at the upper position. The ends of the four third bolts 804 at the lower position pass through the upper inner walls of the four mounting grooves 9 at the lower position, the lower end surfaces of the two first assembly platforms 4 and the lower end surface of the mounting plate 801 in turn, and are passed to the interior of the mounting plate 801, and the ends are respectively threadedly connected to the interior of the four mounting plates 801 at the lower position. Through this connection method, the buffer shock-absorbing structure 8 is fixed to the first assembly platform 4 and the second assembly platform 10, and will not loosen due to vibration or external force during operation.

[0036] Working principle: When the entire assembly platform is impacted by external force, the buffer pad 2 can absorb part of the impact force through its own elastic deformation, thereby reducing the vibration transmitted to the base plate 1, the first assembly platform 4 and the second assembly platform 10. The second assembly platform 10 is used to place and splice large sheet metal parts. The buffer and shock-absorbing structure 8 is arranged between the first assembly platform 4 and the second assembly platform 10. When external force acts on the first assembly platform 4 and the second assembly platform 10, the first assembly platform 4 and the second assembly platform 10 will produce relative displacement, and the compression rod 802 will telescope between the mounting plate 801, and the compression spring 803 will be compressed or stretched, thereby absorbing and alleviating the impact and vibration caused by the external force. The combination of the compression rod 802 and the compression spring 803 can effectively absorb and alleviate the impact force and vibration from all directions during the splicing and assembly of sheet metal parts, which can reduce the impact of vibration on assembly accuracy and ensure the splicing quality of sheet metal parts on the first assembly platform 4 and the second assembly platform 10. The third bolt 804 makes the installation and disassembly of the buffer and shock-absorbing structure 8 more convenient.

[0037] When the buffer and shock-absorbing structure 8 needs to be maintained or replaced, the third bolt 804 can be easily removed to separate the buffer and shock-absorbing structure 8 from the first assembly table 4 and the second assembly table 10. The mounting groove 9 is used to install and fix the buffer and shock-absorbing structure 8 and connect other components. The protective layer 7 can protect the first assembly table 4 and the second assembly table 10 from collision and wear by external objects. The protective plate 301 and the protective side plate 302 can effectively prevent external objects from colliding with and damaging the assembly table. During the production process, tools, parts and other objects may accidentally hit the assembly table. The protective structure 3 can reduce the impact of such impact on the assembly table and the sheet metal parts being assembled. The protective layer 7 further enhances the protective effect and provides comprehensive protection for the first assembly table 4 and the second assembly table 10. The protective plate 301 and the protective side plate 302 are firmly connected together by the first bolt 303, thereby improving the overall stability of the protective structure 3. The connecting plate 5 is used to connect the two first assembly tables 4 and the two second assembly tables 10 so that they can work together. The second bolt 6 is used to fix the connecting plate 5 to ensure the overall stability of the first assembly table 4 and the second assembly table 10.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A large sheet metal assembly platform, comprising a base plate (1), characterized in that: A buffer pad (2) is provided at the center of the lower end surface of the base plate (1), a first assembly platform (4) is provided at the center of the upper end surface of the base plate (1), and a second assembly platform (10) is provided at the center on both sides. The upper ends of the two first assembly platforms (4) are provided with a second assembly platform (10), and a buffer shock absorbing structure (8) is provided between the two first assembly platforms (4) and the two second assembly platforms (10). Four mounting grooves (9) are arranged in a rectangular shape at the front and rear centers of the upper end surfaces of the two second assembly platforms (10) and the lower end surfaces of the two first assembly platforms (4). The outer walls of the two first assembly platforms (4) and the two second assembly platforms (10) are provided with a protective layer (7), and the outer wall of the protective layer (7) is provided with a protective structure (3). A connecting plate (5) is provided at the center of one side wall of the two first assembly platforms (4) and the two second assembly platforms (10), and a second bolt (6) is provided at the center of one side wall of the two connecting plates (5) on one side.

2. The large sheet metal assembly platform according to claim 1, characterized in that: The protective structure (3) comprises two protective plates (301), two protective side plates (302) and eight first bolts (303), the two protective plates (301) being respectively arranged at the center of the front end face and the center of the rear end face of the protective layer (7), the two protective side plates (302) being respectively arranged at the center of the two side walls of the protective layer (7), the eight first bolts (303) being respectively grouped in groups of four, and the two groups of the first bolts (303) being respectively arranged in a rectangular shape on one side wall of the two protective side plates (302).

3. The large sheet metal assembly platform according to claim 1, characterized in that: The buffer shock absorbing structure (8) comprises eight mounting plates (801), four compression rods (802), four compression springs (803) and eight third bolts (804). The eight mounting plates (801) are respectively grouped into four groups. Two groups of mounting plates (801) are arranged in a rectangular shape on the upper end surface of the first assembly platform (4) and the lower end surface of the second assembly platform (10). The four compression rods (802) are respectively arranged at the center of the upper end surfaces of the four mounting plates (801) at the lower position. The other ends of the four compression rods (802) are respectively fixedly connected to the lower end surfaces of the four mounting plates (801) at the upper position. The four compression springs (803) are respectively sleeved on the outer side walls of the four compression rods (802). The eight third bolts (804) are respectively arranged at the lower center of the eight mounting slots (9).

4. The large sheet metal assembly platform according to claim 3, characterized in that: One end portion of the four third bolts (804) at the upper position sequentially penetrates the lower inner wall of the four mounting grooves (9) at the upper position, the upper end surface of the two second assembly platforms (10) and the upper end surface of the mounting plate (801) to pass into the interior of the mounting plate (801), and the end portion is respectively threadedly connected to the interior of the four mounting plates (801) at the upper position; one end portion of the four third bolts (804) at the lower position sequentially penetrates the upper inner wall of the four mounting grooves (9) at the lower position, the lower end surface of the two first assembly platforms (4) and the lower end surface of the mounting plate (801) to pass into the interior of the mounting plate (801), and the end portion is respectively threadedly connected to the interior of the four mounting plates (801) at the lower position.

5. The large sheet metal assembly platform according to claim 2, characterized in that: The eight first bolts (303) and a baffle respectively penetrate one side wall of the two protective plates (301) and one side wall of the two protective side plates (302) in sequence and pass into the interior of the two protective side plates (302), and the ends are all threadedly connected to the interior of the two protective side plates (302).

6. The large sheet metal assembly platform according to claim 1, characterized in that: The two second bolts (6) respectively penetrate one side wall of the four second bolts (6) in sequence and pass into the interior of the second bolt (6) on the other side, and the ends are threadedly connected to the interior of the second bolt (6) on the other side.

7. The large sheet metal assembly platform according to claim 1, characterized in that: The buffer pad (2) and the protective layer (7) are both made of rubber.

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