An auxiliary system for civil air defense door frame assembly welding and a welding method

Abstract

The application relates to the field of civil defense door assembly welding technology, in particular to an auxiliary system and a welding method for civil defense door framework assembly welding, which comprises a bottom table and a hoisting device above the bottom table, the hoisting device is used for conveying civil defense door parts, and further comprises: first limiting blocks which are evenly distributed on opposite sides of the bottom table and horizontally slide parallel to the edges of the bottom table, a clamping mechanism is arranged on the first limiting blocks and used for clamping the civil defense door parts; a plurality of second limiting blocks are arranged above the bottom table, the second limiting blocks reciprocate along the same straight line, the sliding direction of the second limiting blocks is perpendicular to the sliding direction of the first limiting blocks, corresponding to the clamping mechanism of the first limiting blocks, another clamping mechanism is arranged on the second limiting blocks; and a welding table is arranged on one side of the bottom table and used for steel plate slotting and welding. The application has the effects of improving the welding efficiency of the civil defense door manufacturing process and reducing the labor intensity of welders.

Description

Technical Field

[0001] This application relates to the field of assembly and welding technology for air-raid shelter doors, and in particular to an auxiliary system and welding method for assembling and welding the structure of air-raid shelter doors. Background Technology

[0002] Civil defense engineering is a special type of underground structure with protective requirements. It is designed to provide people with safe refuge in emergency situations and to prevent various safety hazards such as terrorist attacks, emergencies, and other disasters. It has now become an indispensable part of modern construction engineering.

[0003] Civil defense doors are a special type of safety door used in civil defense projects. They provide entrances and exits to emergency refuge areas, blocking dangerous sources and providing safe passage for evacuees. The design requirements for civil defense doors are higher than those for ordinary doors. Firstly, they need sufficient structural strength to withstand certain impacts and pressures. Secondly, they must have excellent airtightness to effectively prevent toxic gases and radioactive materials. Thirdly, they must effectively prevent water penetration to ensure the waterproof performance of the project.

[0004] Therefore, the main materials used in the manufacture of air-raid shelter doors include high-strength steel plates. The main frame of a single air-raid shelter door consists of two steel door panels, a support component placed between the two door panels, and an outer steel frame connecting the two door panels. Considering the material and door panel area of ​​the air-raid shelter door, the support component between the two door panels is generally a steel frame composed of multiple steel plates, with multiple steel sheets evenly welded to the steel frame parallel to the door panels. Thus, the multiple steel sheets can stably provide the impact force received by the steel door panels, while reducing the weight of a single air-raid shelter door while ensuring the structural strength of the air-raid shelter door.

[0005] The welding process of the traditional air-raid shelter door is roughly described as follows: The welder first places the cut single door panel horizontally in the welding area. The steel plates used for welding the steel frame are pre-grooved at the intersection points. Then, multiple steel plates are placed parallel to each other on the top side of the door panel. The remaining steel plates are placed in sequence along the length of the placed steel plates, perpendicular to the length of the placed steel plates. The steel plates are inserted through the pre-cut grooves to form a steel frame and weld it. Multiple steel plates are then horizontally and evenly welded to the steel frame. Then, the welder places another door panel horizontally on the steel frame. Finally, the outer steel frame is attached to the edges of the two door panels and welded to complete a single air-raid shelter door.

[0006] Regarding the aforementioned technologies, the traditional welding process for air-raid shelter doors is quite complex, resulting in low production efficiency. Therefore, a welding system consisting of multiple auxiliary devices can be designed to assist welders in welding air-raid shelter doors and improve efficiency. Summary of the Invention

[0007] In order to improve the welding efficiency in the manufacturing process of air-raid shelter doors and reduce the labor intensity of welders, this application provides an auxiliary system and welding method for assembling and welding the air-raid shelter door frame.

[0008] This application provides an auxiliary system for assembling and welding the structure of a civil defense door, employing the following technical solution: An auxiliary system for assembling and welding the frame of a civil defense door includes a base platform and a hoisting device above the base platform. The hoisting device is used to transport civil defense door components. The system is characterized by further comprising: The first limiting block is evenly distributed on both sides of the base platform and slides horizontally parallel to the edge of the base platform. The first limiting block is provided with a clamping mechanism for clamping the components of the air defense door. Multiple second limiting blocks are provided above the base platform. The multiple second limiting blocks slide back and forth along the same straight line, and their sliding direction is perpendicular to the sliding direction of the first limiting block. Corresponding to the clamping mechanism of the first limiting block, another clamping mechanism is provided on the second limiting block. A welding table, located on one side of the base platform, is used for grooving and welding of steel plates.

[0009] By adopting the above technical solution, the base platform and the hoisting device form the welding and assembly area for a single-leaf air-raid shelter door. The hoisting device transports the air-raid shelter door components to be assembled, and welders work together to align the components with the clamping mechanisms on the first and second limiting blocks, completing the positioning of the components. This replaces the reciprocating handling and repeated visual positioning by welders in the traditional solution, thus reducing the labor intensity of welders. The welding table is used by welders to process each steel plate that forms the support between the two door panels. The welding table is set on one side of the base platform. The steel plates processed on the welding table are transported to the base platform for assembly by the hoisting device. During the assembly process, the steel plates are clamped by the clamping mechanisms of the first and second limiting blocks, and the sliding of the first and second limiting blocks assists the welder in positioning. It should be noted that, unlike the traditional solution, in the above solution, the steel plates in the support can be placed on the welding table. The installation process saves installation time and improves installation efficiency. The operation of the above scheme is explained in detail below: A steel plate of suitable length is placed on the welding table. Multiple steel plates are welded at equal intervals by auxiliary components on the welding table, and slots are cut on the welding table. While the steel plate is being processed on the welding table, other welders in the base area slide the first and second limiting blocks to preset positions. The hoisting device transports the steel plate to the top of the base and lowers it to the height of the clamping components. The welder verticalizes the steel plate and installs it onto the clamping components with the welded steel plate side facing upwards. The steel plate is welded to the base platform through the cooperation of the clamping components. In addition, an outer steel frame can be processed on the welding table. Generally, the outer steel frame consists of channel steel at one end. Multiple hinge chains are welded to the back of the channel steel on the welding table to form the outer steel frame. The slots of the channel steel are aligned with the two door panels, and the bottom end of the channel steel contacts the side of the door panel before welding.

[0010] Optional, also includes; Slide rails are provided on opposite sides of the base platform to drive the first limiting block and the second limiting block to slide.

[0011] By adopting the above technical solution, two parallel slide rails are laid on the ground on both sides of the base platform corresponding to the bottom of the first limiting block. The first limiting block slides along the slide rails. The second limiting blocks are distributed on the top of the base platform along the same straight line, and the distribution line of multiple second limiting blocks is perpendicular to the length direction of the slide rail. Thus, in the above solution, a carriage can be set to support multiple second limiting blocks. Multiple second limiting blocks are slidably connected to the carriage, and the two ends of the carriage are slidably connected to the slide rail, thereby realizing that the second limiting blocks slide along the sliding direction parallel to the first limiting block. In summary, in the above solution, the sliding of the first and second limiting blocks is realized by the slide rail alone. Multiple tracks need to be opened on the slide rail. One inner track is used for the sliding of multiple first limiting blocks, and one outer track is used for the carriage to support the second limiting blocks to avoid sliding interference. The first limiting block slides along the slide rail to change the position of the corresponding edge of the base platform, and the second limiting block slides along the slide rail to change the sliding side of the base platform.

[0012] Optionally, the clamping mechanism includes; The first clamping groove is vertically disposed on the side of the multiple first limiting blocks near the base, and the groove opening direction is inclined to the length direction of the edge of the base. The second clamping groove is vertically disposed on the side of the multiple first limiting blocks near the base, and its groove opening direction is perpendicular to the groove opening direction of the first clamping groove. The first limiting groove is vertically opened on both opposite sides of the second limiting block. The opening directions of the two first limiting grooves are parallel and correspond to the opening direction of the first clamping groove. The second limiting groove is vertically opened on two opposite sides of the second limiting block. The opening directions of the two second limiting grooves are parallel and correspond to the opening direction of the second clamping groove.

[0013] By adopting the above technical solution, the first clamping groove and the second clamping groove are used to fix the vertically placed steel plate. The bottom side of the steel plate with horizontal steel plates welded on it is inserted into the first clamping groove and the second clamping groove. Before installation, the welder needs to slide the first limiting block and the second limiting block along the adjacent sides of the base platform to the corresponding positions. The straight line where the first limiting block and the second limiting block are located is inclined to the two adjacent sides of the base platform. Furthermore, the straight line where the opening direction of the first clamping groove and the first limiting groove is located should be inclined to the two adjacent sides of the base platform. The corresponding steel plate of the base platform is rectangular. Therefore, the angle between the first clamping groove and the first limiting groove and the two sides of the base platform should ideally be 45 degrees. In addition, after sliding, the length of the first limiting block and the second limiting block should be matched with the length of the steel plate to ensure the installation of the steel plate. The opening directions of the second clamping groove and the second limiting groove should be inclined to the other two adjacent sides of the base platform. The opening directions of the second clamping groove and the second limiting groove are perpendicular to the opening directions of the first limiting groove and the second clamping groove. That is, through the sliding of the first limiting block and the second limiting block, steel plates of different lengths are tilted and placed at different preset positions on the side of the door panel. Then, with the auxiliary positioning of the first limiting groove and the first clamping groove, and the second limiting groove and the second clamping groove, multiple steel plates are cross-placed in precise positions and welded to form a support.

[0014] Optionally, the clamping mechanism further includes; Clamping angle plates, multiple first limiting blocks and multiple second limiting blocks facing each other on the same side of the base platform, are used to clamp the outer steel frame.

[0015] By adopting the above technical solution, the clamping angle plates are set at the same height on the opposite side of the base platform, with multiple first limiting blocks and multiple second limiting blocks facing each other. The two clamping angle plates are composed of multiple perpendicular short plates forming a corner. The corner sides of the multiple clamping angle plates are arranged facing each other to form an area for placing the channel steel. During the process of the hoisting device dropping the welded channel steel to the top of the base platform, the first limiting blocks on the same side of the base platform slide to both ends on the same side of the base platform. Then the hoisting device moves the channel steel down, and the welder places both ends of the channel steel between the two opposing clamping angle plates on the multiple first limiting blocks or multiple second limiting blocks on the same side of the base platform, replacing the welder in handling and positioning.

[0016] Optional, also includes; A sliding mechanism is used to drive the clamping mechanism to slide in the vertical direction.

[0017] By adopting the above technical solution, the sliding mechanism is used to drive the clamping mechanism on the first limiting block and the second limiting block to slide vertically. When the steel plate is vertically placed in the first clamping groove and the second clamping groove, the sliding mechanism drives the clamping mechanism to move downward, so that the bottom edge of the steel plate abuts the door panel surface. In addition, when the slide of the second limiting block slides along the slide rail, the sliding mechanism drives the clamping corner plate to move upward to avoid structural interference when sliding past the first limiting block, thereby realizing sliding clearance.

[0018] Optional, also includes; A positioning plate is vertically set and slidably connected to one side of the welding table, and a positioning component for positioning steel sheets is provided on one side of the positioning plate; Positioning end blocks are positioned opposite each other on the welding table, and the two positioning end blocks slide towards each other on the welding table to position the steel plate; A welding area is formed between the positioning plate and the positioning end block that is disposed opposite to it.

[0019] By adopting the above technical solution, structural improvements are made to the auxiliary components on the welding platform. First, a positioning plate is vertically installed on one side of the welding platform, parallel to the length direction of its edge. A positioning component for positioning multiple steel sheets is installed on the side of the positioning plate near the center of the welding platform. With the help of the positioning component, the steel sheets are arranged in an orderly manner and welded to the top side of the steel plate. Based on this, a positioning end block is also provided on the welding platform to position the surface of the steel plate to be welded in the correct position on the welding platform along its length, ensuring the correct position of the steel sheets for welding. Furthermore, the above solution also includes a clamping plate installed on the welding platform for clamping the vertically positioned steel plates.

[0020] Optional, also includes; A stabilizing mechanism is provided at two opposite corners of the base platform, and the stabilizing mechanism slides back and forth in the direction closer to the base platform.

[0021] By adopting the above technical solution, the stabilizing mechanism slides back and forth at two opposite corners of the base platform. Before the hoisting device places the steel plate, the welder controls the stabilizing mechanism to slide back and forth. Then the hoisting device transports the steel plate down close to the stabilizing mechanism. The welder shakes the steel plate between the two stabilizing mechanisms. By limiting the steel plate from the two opposite corners, the welder avoids the steel plate from deviating from its final position due to shaking during the fall, which would affect the subsequent welding of the air-raid shelter door components.

[0022] This application also provides a welding method for assembling and welding the structure of a civil defense door, comprising the following steps: The steel plate is placed vertically in the welding area of ​​the welding table, and multiple steel plates are placed on the positioning assembly of the positioning plate. The welder works with the positioning assembly to complete the welding of a single steel plate. The hoisting device transports the steel plate to the top of the platform, with both ends of the steel plate placed in the first clamping groove and the first limiting groove, respectively. The second limiting block slides along a sliding direction parallel to the first limiting block, and installs the remaining steel plate into the second clamping groove and the second limiting groove. The first limiting block and the second limiting block slide sequentially to a preset position.

[0023] By adopting the above steps, welders can reduce labor intensity and improve the efficiency of steel plate conveying and welding with the help of auxiliary devices. First, the welder needs to arrange multiple steel plates on the positioning component in sequence, so that the steel plates are evenly distributed along the steel plate, with the welding surface of the steel plates facing the surface to be welded on the steel plate. The distribution position of the steel plates on the positioning component corresponds to the positioning position on the surface to be welded on the steel plate. The welder pushes the positioning plate to weld the steel plates to the steel plate. Then, the positioning component is retracted, and the welder cuts grooves between two adjacent steel plates to form slots for cross-interlocking of the steel plates. After welding is completed on the welding table, it is transported to the bottom platform for assembly by a hoisting device. With the assistance of the first and second limiting blocks, each steel plate is tilted on the bottom plate and placed crosswise on the side of the steel plate to form a support. The welder then places another door panel accordingly.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By combining the steps in the traditional solution, the welding and assembly efficiency is improved. In the traditional solution, the welder first cuts grooves in the steel plate, and after all the steel plates are cross-installed and welded to the door panel, the steel sheets are welded in sequence. As a result, the welding efficiency of a single air-raid shelter door is relatively low. In this embodiment, the steel sheets on the steel plate are combined with the grooving process through a welding table. After the steel plate is processed, it is transported to the bottom platform for assembly. Moreover, the corresponding positioning components on the welding table save the welder from the process of repeatedly positioning and confirming. 2. The welding table is set on one side of the base platform. The welding table is connected to the base platform by a hoisting device to form an assembly line. Welders do not need to carry the parts of the air defense door, which reduces labor intensity. 3. By sliding the first limiting block and the second limiting block, the positions of the first limiting block and the second limiting block on the corresponding side of the base platform are adjusted to assist the welder in installing the processed steel plate into the corresponding position for welding, saving the welder from repeatedly confirming the position of the steel plate and thus improving welding efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the steel plate structure in an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the channel steel structure in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 4 This is a structural schematic diagram of the welding station in an embodiment of this application.

[0029] Figure 5 This is a structural schematic diagram made to highlight the positioning groove in the embodiments of this application.

[0030] Figure 6This is a structural schematic diagram in an embodiment of this application to highlight the base platform.

[0031] Figure 7 This is a structural schematic diagram made to highlight the first limiting block in the embodiments of this application.

[0032] Figure 8 This is a structural schematic diagram made to highlight the second limiting block in the embodiments of this application. Figure 9 This is a structural schematic diagram in the embodiment of this application, designed to highlight the state of the positioning channel steel of the second limiting block.

[0033] Explanation of reference numerals in the attached drawings: 1. Steel plate; 11. Slot; 12. Steel sheet; 13. Support plate mesh; 14. Steel plate body; 2. Channel steel; 21. Channel steel body; 3. Door panel; 4. Welding table; 41. Positioning clamp; 42. Positioning plate; 43. Positioning clamp; 44. Positioning groove; 45. First drive cylinder; 46. Positioning end block; 47. Second drive cylinder; 5. Base platform; 51. Stabilizing mechanism; 511. Stabilizing block; 512. Angle steel Column; 513, Third drive cylinder; 52, Second slide rail; 53, First limiting platform; 531, First limiting block; 532, First clamping groove; 533, Second clamping groove; 54, Third slide rail; 55, Slide frame; 56, Second limiting platform; 561, Second limiting block; 562, First limiting groove; 563, Second limiting groove; 57, Clamping angle plate; 571, Drive motor; 58, Slot frame; 6, Gantry frame; 61, First slide rail. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0035] Example 1: This application first discloses a steel plate for assembling air-raid shelter doors, referring to... Figure 1 A steel plate for assembling air-raid shelter doors includes a steel plate body 14. The length of the steel plate body 14 is greater than its width and height, and it is elongated. Multiple slots 11 are provided along the width direction on one side edge of the steel plate body 14. The multiple slots 11 are evenly distributed along the length direction of the steel plate body 14. A steel sheet 12 is welded to the middle part of every two adjacent slots 11. The steel sheet 12 is composed of two perpendicular metal short plates in the shape of angle steel. When one side of the steel sheet 12 abuts against the side wall of the steel plate body 14, the other side of the steel sheet 12 is perpendicular to the side wall of the steel plate body 14, and the side of the steel sheet 12 perpendicular to the steel plate body 14 is flush with one side edge of the steel plate body 14.

[0036] In this embodiment, multiple steel plates 1 are placed in a cross pattern to form a support mesh 13 between the two door panels 3.

[0037] The present application further discloses a channel steel for assembling air-raid shelter doors, referring to... Figure 2 A channel steel for assembling air-raid shelter doors includes a channel steel body 21 and multiple hinges welded to the channel steel body 21. The multiple hinges are welded to a side wall of the channel steel 2 away from the channel and are evenly distributed along the length of the channel steel 2. The two ends of each channel steel 2 are cut along an inclined surface, and the inclined surfaces of the ends of the four channel steel 2 are joined in sequence to form a vertical outer steel frame of the four channel steel 2.

[0038] In this embodiment, after the two door panels 3 and the supporting mesh 13 between the two door panels 3 are assembled, four channel steels 2 are transported to the top of the base platform 5 in sequence, placed against the edges of the two door panels 3 and welded to form a single air-raid shelter door.

[0039] This application also discloses an auxiliary system for assembling and welding the structure of a civil defense door, referring to... Figure 3 An auxiliary system for assembling and welding the structure of a civil defense door includes a welding table 4. The welding table 4 is used to process the steel plate body 14 mentioned above in this embodiment. The steel plate body 14 has slots 11 opened on the table surface of the welding table 4 and multiple steel plates 12 are welded on it.

[0040] Reference Figure 3 and Figure 4 Multiple sets of positioning clamps 41 are arranged on the welding table 4 parallel to one edge of the welding table 4. The bottom ends of the multiple sets of positioning clamps 41 are fixed to the welding table 4. Each set of positioning clamps 41 includes two positioning clamps 41 arranged opposite each other. A gap is provided between the two positioning clamps 41 to adapt to the steel plate 1 so that the steel plate 1 is stably and vertically placed on the welding table 4. In this embodiment, the positioning clamps 41 play the role of limiting and fixing the steel plate body 14. The welder inserts the steel plate body 14 into the gap between the multiple sets of positioning clamps 41, and uses the structural limiting to keep the steel plate body 14 vertical.

[0041] In this embodiment, when the steel plate body 14 is installed between the positioning clamps 41, the height of the positioning clamps 41 is lower than the height of the bottom wall of the slot 11 on the top side of the steel plate body 14, so as to avoid structural interference.

[0042] Reference Figure 4 and Figure 5 A positioning plate 42 is provided on one side of the welding table 4. The positioning plate 42 is vertically positioned and its length direction is greater than its height direction. The length direction of the positioning plate 42 is parallel to the distribution direction of the multiple sets of positioning clamps 41. Two positioning clamps 43 are horizontally positioned at the top of the side of the positioning plate 42 near the positioning clamps 41. The length of the two positioning clamps 43 is equal to the length of the positioning plate 42, so that the two ends of the two positioning clamps 43 are flush with the two ends of the positioning plate 42. The two positioning clamps 43 are positioned at different heights, and a gap adapted to the thickness of the steel sheet 12 is formed between the two positioning clamps 43 so that the steel sheet 12 can be inserted between the two positioning clamps 43.

[0043] Reference Figure 5 Furthermore, to facilitate the direct positioning of the steel sheet 12, multiple positioning grooves 44 are provided on the lower positioning clamp 43 of the two positioning clamps 43. The multiple positioning grooves 44 are distributed along the length direction of the positioning clamp 43, and the two adjacent positioning grooves 44 are spaced apart by a preset distance. The welder places the steel sheet 12 directly into the positioning groove 44 to achieve the positioning of the steel sheet 12.

[0044] In this embodiment, the welder inserts one side of the steel sheet 12 between the two positioning clamps 43, and the other side of the steel sheet 12 is vertically set, parallel to the side wall of the steel plate body 14 installed in the multiple sets of positioning clamps 41.

[0045] Reference Figure 4 and Figure 5 Based on this, in this embodiment, a driving component is provided on the side of the positioning plate 42 away from the positioning clamping block 41 to drive the multiple steel plates 12 fixed between the positioning clamping plates 43 to feed towards the positioning plate 42, so that the vertical surfaces of the multiple steel plates 12 abut against the side wall of the steel plate body 14; to facilitate the driving of the driving component, the ends of the two positioning clamping plates 43 near the positioning plate 42 are connected, so that the two positioning clamping plates 43 are integrally formed; the driving component includes a first driving cylinder 45 with the welding table 4 on the side of the positioning plate 42 away from the positioning clamping block 41, the piston rod of the first driving cylinder 45 horizontally penetrates the plate surface of the positioning plate 42 and is fixed to the connecting end of the two positioning clamping plates 43, and the cylinder body of the first driving cylinder 45 is fixed to the welding table 4; the first driving cylinder 45 extends the piston rod and pushes the positioning clamping plate 43 and the steel plates 12 clamped between the two positioning clamping plates 43 to feed towards the steel plate body 14.

[0046] Looking back Figure 3 In this embodiment, positioning end blocks 46 are provided at both ends of multiple sets of positioning clamping blocks 41. The two positioning end blocks 46 and the multiple sets of positioning clamping blocks 41 are distributed on the same straight line. Two second driving cylinders 47 are provided on the side of the multiple sets of positioning clamping blocks 41 away from the positioning plate 42 on the welding table 4 surface. The two second driving cylinders 47 are arranged facing each other. The piston rods of the two second driving cylinders 47 are fixed to the positioning end blocks 46 by metal parts, so that the piston rods of the second driving cylinders 47 extend towards each other, pushing the two positioning end blocks 46 to move towards each other. Thus, when the steel plate body 14 is vertically positioned between the two positioning clamping blocks 41, the piston rods of the two second driving cylinders 47 extend towards each other to clamp the two steel plates 1 and position the steel plate body 14 in the length direction to cooperate with the multiple steel pieces 12 positioned between the positioning clamping plates 43; after the two positioning end blocks 46 clamp the steel plate body 14, the first driving cylinder 45 feeds, pushing the positioning clamping plates 43 toward the steel plate body 14, directly pushing the positioned steel pieces 12 onto the surface of the positioning plate 42.

[0047] Reference Figure 5To facilitate direct welding by the welder, the upper positioning clamp 43 is narrower than the lower positioning clamp 43, thus avoiding the problem of the positioning clamp 43 sticking to the surface of the steel plate body 14, which would prevent the welder from welding.

[0048] Reference Figure 3 and Figure 6 A base platform 5 protrudes from the ground on one side of the welding table 4. The base platform 5 is rectangular and is used to place the door panel 3. A gantry frame 6 is set above the base platform 5. A winch is set on the top and bottom side of the gantry frame 6. The two ends of the gantry frame 6 are slidably connected to the two opposite sides of the base platform 5. The two opposite sides of the base platform 5 are laid with first slide rails 61 parallel to the edge of the base platform 5. The two ends of the bottom of the gantry frame 6 are rotatably connected to rollers adapted to the first slide rails 61, and motors are set accordingly. The motors drive the rollers to rotate, so that the gantry frame 6 can slide along the first slide rails 61. In this embodiment, the first slide rails 61 extend to one side of the welding table 4, so that the gantry frame 6 can be used as a hoisting device to transport the steel plate 1 between the welding table 4 and the base platform 5, so as to replace manual handling and reduce labor intensity.

[0049] Reference Figure 6 In this embodiment, vertically arranged stabilizing blocks 511 are slidably connected to one side of the two opposite corners of the base platform 5. The line connecting the stabilizing blocks 511 is the diagonal of the base platform 5. An angle steel column 512 is vertically arranged on each stabilizing block 511. The body of the angle steel column 512 is angle steel, and the corners of the two angle steel columns 512 are arranged facing each other. A third driving cylinder 513 is horizontally arranged on the opposite side of the two stabilizing blocks 511. The piston rod of the third driving cylinder 513 pushes the two stabilizing blocks 511 to move towards each other and press against the base platform 5 from the two corners of the base platform 5. Thus, when the gantry 6 hoists the door panel 3, after the door panel 3 is placed above the base platform 5, in order to prevent the door panel 3 with large inertia from continuously swaying, the two angle steel columns 512 are driven to move towards each other by the third drive cylinder 513 to limit the door panel 3. Then, the winch on the gantry 6 releases the wire, which drives the door panel 3 to move down, and the welder assists in placing the door panel 3 on the base platform 5.

[0050] Reference Figure 6 and Figure 7In this embodiment, two second slide rails 52 are laid on opposite sides of the base 5 near the two first slide rails 61. The distance between the two second slide rails 52 is smaller than the distance between the two first slide rails 61. The length direction of the second slide rails 52 is parallel to the first slide rails 61. Two first limiting platforms 53 are slidably connected to each second slide rail 52. The bottom ends of the two first limiting platforms 53 are rotatably connected to rollers adapted to the second slide rails 52, and motors are correspondingly provided. The motors drive the rollers on the second slide rails 52 to rotate, thereby driving the two first limiting platforms 53 to slide along the length direction parallel to the second slide rails 52. In this embodiment, A vertically arranged first limiting block 531 is fixed to the top side of the first limiting platform 53. Among the two first limiting blocks 531 on the same side of the base platform 5, one of the first limiting blocks 531 has a first clamping groove 532 vertically opened on the side of the base platform 5. The height of the first clamping groove 532 is adapted to the height of the steel plate 1 mentioned above in this embodiment. The opening direction of the groove of the first clamping groove 532 is inclined at 45° to the edge of the base platform 5. The other first limiting block 531 on the same side of the base platform 5 has a second clamping groove 533. The opening direction of the second clamping groove 533 is perpendicular to the first clamping groove 532 and perpendicular to the edge of the base platform 5.

[0051] Reference Figure 6 In this embodiment, two third slide rails 54 are laid on the opposite side of the base platform 5 near the two second slide rails 52. The length direction of the two third slide rails 54 is parallel to the length direction of the two second slide rails 52. The distance between the two third slide rails 54 is greater than the distance between the two second slide rails 52, but less than the distance between the two first slide rails 61. Therefore, the third slide rails 54 on both sides of the base platform 5 are laid between the second slide rails 52 and the first slide rails 61 on the same side of the base platform 5. A slide frame 55 is slidably connected on the third slide rail 54. The length direction of the slide frame 55 is perpendicular to the third slide rail 54. The bottom ends of the slide frame 55 are slidably connected to the third slide rail 54. The bottom end of the slide frame 55 is rotatably connected to a roller adapted to the third slide rail 54, and a motor driving the roller is correspondingly provided. The motor drives the roller to roll on the third slide rail 54, thereby driving the slide frame 55 to slide perpendicular to the third slide rail 54 and along the length direction of the third slide rail 54.

[0052] Reference Figure 6 and Figure 8In this embodiment, two second limiting platforms 56 are slidably connected to the top of the slide 55. The second limiting platforms 56 slide along the length direction of the slide 55. Rollers are rotatably connected to the portion of the second limiting platform 56 corresponding to the top of the slide 55, and motors adapted to the rollers are correspondingly provided. The motors drive the rollers to roll along the length direction of the slide 55 on the top side of the slide 55, thereby causing the second limiting platform 56 to slide along the length direction of the slide 55. Each second limiting platform 56 is provided with a second limiting block 561 on both sides of the slide 55. The two second limiting blocks 561 on one second limiting platform 56 have a first limiting groove 562 vertically opened on the side away from the slide 55. The opening direction of the first limiting groove 562 is parallel to the opening direction of the first clamping groove 532. And opposite to the opening direction of the first clamping groove 532, the height of the first limiting groove 562 is equal to the height of the first clamping groove 532; the two second limiting blocks 561 on the other second limiting platform 56 each have a second limiting groove 563 on the side away from the slide 55. The opening direction of the second limiting groove 563 is parallel to the opening direction of the second clamping groove 533 and opposite to the opening direction of the second clamping groove 533. The height of the second limiting groove 563 is equal to the height of the first limiting groove 562. The heights of the first limiting groove 562, the second limiting groove 563, the first clamping groove 532 and the second clamping groove 533 are all lower than the height of the top side of the base platform 5, so as to ensure that the bottom side of the vertically placed steel plate 1 abuts against the steel plate 1 installed on the base platform 5.

[0053] In summary, in this embodiment, the first clamping grooves 532 and second clamping grooves 533 on the multiple first limiting blocks 531 and the first limiting grooves 562 and second limiting grooves 563 on the two second limiting blocks 561 are used to assist in positioning the steel plate 1 on the door panel 3 to form a support mesh 13. The welder first places the door panel 3 horizontally on the base platform 5 using the gantry frame 6, with the adjacent sides of the door panel 3 parallel to the second slide rail 52 and the third slide rail 54, respectively. Then, the welder uses the gantry frame 6 to lift the welded steel plate 1 from the welding table 4 to the base platform 5. 6. When conveying steel plate 1, the motor drives the rollers on the first limiting platform 53 and the second limiting platform 56 to rotate, which respectively slides the first clamping groove 532 and the second clamping groove 533 along the second slide rail 52 and the third slide rail 54, changing the positional relationship between one of the first limiting blocks 531 and the corresponding second limiting block 561, and making the distance between them corresponding to the length of the steel plate 1. The welder places the steel plate 1 in the first limiting groove 562 and the first clamping groove 532, and uses the vertical groove structure of the first limiting groove 562 and the first clamping groove 532 to complete the positioning of the steel plate 1. Thus, after passing through the second slide rail 52 and the third slide rail 54, the first limiting block 531 and the second limiting block 561 slide to the preset position of the steel plate 1 to be welded. The first clamping groove 532 and the first limiting groove 562 are used to position multiple steel plates 1 in the same direction in the support plate mesh 13. The opening direction of the second clamping groove 533 and the second limiting groove 563 is perpendicular to the first clamping groove 532 and the first limiting groove 562, and is used to position multiple steel plates 1 in another direction in the support plate mesh 13.

[0054] It should be noted that in this embodiment, the opening directions of the first clamping grooves 532 on the plurality of first limiting blocks 531 are parallel, the opening directions of the plurality of second clamping grooves 533 are parallel, the opening directions of the two first limiting grooves 562 on the same limiting platform are parallel, and the opening directions of the two second limiting grooves 563 on the same limiting platform are parallel.

[0055] Reference Figure 7 and Figure 8 In this embodiment, clamping angle plates 57 are fixedly connected to the opposing side of each first limiting block 531 and the other first limiting block 531 on the same side of the base platform 5, and to the opposing side of each second limiting block 561 and the other second limiting block 561 on the same side of the slide 55. Each clamping angle plate 57 is composed of two perpendicular metal short plates, one side of which is welded to the first limiting block 531 and the second limiting block 561. The plates are arranged at an angle to each other between the two first limiting blocks 531 on the same side of the base platform 5 and between the two second limiting blocks 561 on the same side of the slide 55, so as to form a feeding structure for clamping the channel steel 2 mentioned above in this embodiment.

[0056] Reference Figure 9After the two door panels 3 and the supporting mesh 13 between the two door panels 3 are installed, the welder places the single channel steel 2 on the two opposite clamping angle plates 57, and the groove on the channel steel 2 should be aligned with the edge of the door panel 3 on the base platform 5.

[0057] Reference Figure 7 and Figure 8 In this embodiment, based on the positioning of the channel steel 2 by the clamping angle plate 57, a sliding mechanism is also provided to drive the vertical sliding of the clamping angle plate 57 on the first limiting block 531 and the second limiting block 561, so as to move the steel plate 1 positioned on the first limiting block 531 and the second limiting block 561 downward to align with the edge of the door panel 3. When processing door panels 3 of different thicknesses of the air-raid shelter, the sliding mechanism is used to adjust them to a preset height. Thus, the sliding mechanism includes a slot frame 58 with the two first limiting blocks 531 facing each other on the same side of the base platform 5 and the two second limiting blocks 561 facing each other on the same side of the slide 55. The main body of the slot frame 58 is vertically set, but the top and bottom sides are both horizontally set. A small vertically set motor is set on the horizontally set part of the top side of the slot frame 58. A threaded rod is vertically set in the main body of the slot frame 58. The two ends of the threaded rod are rotatably connected to the top and bottom ends of the slot frame 58. The rotating shaft of the small motor passes through the top of the slot frame 58 and is fixedly connected to the threaded rod. A sliding block is threaded onto the threaded rod, and the clamping angle plate 57 is fixedly connected to the sliding block. The rotation of a small motor drives the clamping angle plate 57 to move vertically back and forth, changing the height of the clamping angle plate 57. In order to achieve stable vertical sliding of the clamping angle plate 57, in this embodiment, a vertically set guide rod is fixedly connected to both the top and bottom of the slot frame 58, and the guide tube passes through the sliding block.

[0058] The implementation principle of an auxiliary system for assembling and welding the structure of a civil defense door according to an embodiment of this application is as follows: the base platform 5 serves as the work area for assembling and welding the door panel 3, and the welding table 4 serves as the welding area for the single steel plate 1 that makes up the support mesh 13. The welder first uses the welding auxiliary components on the welding table 4 to weld the single steel plate 1, and then the single steel plate 1 is hoisted to the assembly platform for installation by the gantry frame 6.

[0059] In this embodiment, the steps that are applied to the steel plate 1 in the traditional solution are completed uniformly on the welding table 4. The plates are then transported to the base 5 and welded and assembled with the door panel 3. The positioning clamp 41 and the second drive cylinder 47 assist the welder in positioning and fixing the steel plate 1 to the corresponding position. The positioning clamp 43 positions multiple steel pieces 12. The first drive cylinder 45 automatically completes the feeding of the steel pieces 12. The welder only needs to weld and does not need to repeatedly confirm the correct position of the steel pieces 12. The welder can use the welding table 4 to make through grooves between adjacent steel pieces 12.

[0060] Before the gantry crane 6 lifts the steel plate 1 to the top of the base platform 5, the welder needs to place the door panel 3 on the base platform 5 in advance, and then install multiple steel plates 1 in sequence to form the support mesh 13. Before installing each steel plate 1, the welder slides the first limiting block 531 and the second limiting block 561 to the preset position, places a single steel plate 1 in the first clamping groove 532 and the first limiting groove 562 until the bottom end of the steel plate 1 abuts against the surface of the door panel 3, and then welds at multiple points. The above steps are repeated to install multiple steel plates 1 in the same direction. Then the remaining steel plates 1 are placed in the second clamping groove 533 and the second limiting groove 563 to complete the installation of all steel plates 1 on the door panel 3.

[0061] In addition to the steel plate 1 that forms the support mesh 13, this embodiment also features two first limiting blocks 531 on the same side of the base platform 5 and two second limiting blocks 561 on the same side of the slide 55 that slide towards each other to connect the clamping angle plate 57, so as to achieve the positioning of the channel steel 2. After the clamping angle plate 57 is positioned, the welder can finally weld the channel steel 2 to the edge side of the two door panels 3.

[0062] Example 2: This embodiment, based on the auxiliary system for assembling and welding the structure of a civil defense door as described in Embodiment 1 above, discloses a welding method for assembling and welding the structure of a civil defense door, including the following steps: The welder places the steel plate 1 vertically between the two positioning clamps 41 of the welding table 4, places multiple steel pieces 12 in the positioning grooves 44 of the positioning clamp 43, and the first drive cylinder 45 feeds the positioning clamp 43 toward the steel plate 1 until the vertical side of the steel piece 12 is attached to the steel plate 1, and the welder completes the welding. After the welder completes the welding of the steel sheet 12, the positioning clamp 43 is retracted, and the welder cuts grooves between every two adjacent steel sheets 12 on the top side of the steel plate 1. While the first steel plate 1 is being welded, the gantry 6 hoists the door panel 3. After the door panel 3 is hoisted to the top of the base platform 5, the welder on one side of the base platform 5 controls the third drive cylinder 513 to drive the two angle steel columns 512 to slowly feed until the angle steel columns 512 limit the door panel 3 from the two opposite corners, and the door panel 3 is stably placed on the base platform 5. The first limiting block 531 and the second limiting block 561 slide to the welding position of the first steel plate 1; The welder installs steel wire ropes at both ends of the processed steel plate 1 and transports it to the top of the base platform 5 via the gantry 6. During the process of lowering the steel plate 1 from the gantry 6, the welder places both ends of the steel plate 1 into the first clamping groove 532 and the first limiting groove 562 respectively. The bottom side of the steel plate 1 abuts against the top side of the door panel 3, and the welder performs multi-point welding. The first limiting block 531 and the second limiting block 561 slide to the preset position, and repeat the above process to complete the welding of multiple steel plates 1 until the half-triangular surface of the door panel 3 is completed. The first limiting block 531 and the second limiting block 561 slide to the welding position of the first steel plate 1 in another direction, and repeat the above steps to place multiple steel plates 1 in the second clamping groove 533 and the second limiting groove 563, and sequentially complete the welding of steel plates 1 in each area of ​​the door panel 3 to form the support plate mesh 13. The welder installs the cut channel steel 2 onto the gantry 6, and the gantry 6 transports the channel steel 2 to the top of the base platform 5. The area between the two clamping angle plates 57 of the first limiting block 531 is directly placed by the welder. The area between the two clamping angle plates 57 of the second limiting block 561 is hoisted to the corresponding height by the gantry 6, and the welder assists in placing it on the two clamping angle plates 57. The small motor rotates, adjusting the height of the clamping angle plate 57 to the edge of the two door panels 3, i.e. the support plate mesh 13, corresponding to the groove of the channel steel 2. The welder manually feeds the channel steel 2 until the edge of the door panel 3 abuts the bottom of the groove of the channel steel 2 and welds it.

[0063] The welder completed the welding of the four side channel steel sections, thus completing the welding and assembly of a single air-raid shelter door.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary system for assembling and welding the frame of a civil defense door, comprising a base platform (5) and a hoisting device above the base platform (5), the hoisting device being used to transport civil defense door components, characterized in that: Also includes: The second slide rail (52) is disposed on opposite sides of the base platform (5); each second slide rail (52) is slidably connected to two first limiting blocks (531); the first limiting block (531) is provided with a first clamping mechanism for clamping the components of the air defense door; the first clamping mechanism includes a first clamping groove (532) and a second clamping groove (533), the first clamping groove (532) is vertically opened on one side of the base platform (5) near the side of the first limiting block (531), and its groove opening direction is inclined to the length direction of the edge of the base platform (5); the second clamping groove (533) is vertically opened on the other side of the base platform (5) near the side of the base platform (5), and its groove opening direction is perpendicular to the groove opening direction of the first clamping groove (532). The third slide rail (54) is disposed on opposite sides of the base (5). The length direction of the two third slide rails (54) is parallel to the length direction of the two second slide rails (52). A slide frame (55) is slidably connected to the third slide rail (54). The length direction of the slide frame (55) is perpendicular to the third slide rail (54). Two second limiting platforms (56) are slidably connected to the top of the slide frame (55) along its length direction. Each second limiting platform (56) is provided with a second limiting block (561) on both sides of the slide frame (55). Corresponding to the first clamping mechanism of the first limiting block (531), the second limiting block (561) is provided with a second clamping mechanism. The mechanism includes a first limiting groove (562) and a second limiting groove (563). The first limiting groove (562) is vertically opened on one of the second limiting platforms (56) with two second limiting blocks (561) facing away from the slide (55). The groove opening direction of the first limiting groove (562) is parallel to the groove opening direction of the first clamping groove (532). The second limiting groove (563) is vertically opened on the other second limiting platform (56) with two second limiting blocks (561) facing away from the slide (55). The groove opening direction of the second limiting groove (563) is parallel to the groove opening direction of the second clamping groove (533). A welding table (4) is set on one side of the base (5) for grooving and welding of the steel plate (1).

2. The auxiliary system for assembling and welding the frame of a civil defense door according to claim 1, characterized in that: Each first limiting block (531) is fixed to the opposite side of another first limiting block (531) on the same side as the base (5), and each second limiting block (561) is fixed to the opposite side of another second limiting block (561) on the same side as the slide (55). The clamping angle plate (57) is used to clamp the outer steel frame.

3. The auxiliary system for assembling and welding the frame of a civil defense door according to claim 2, characterized in that: It also includes a sliding mechanism for driving the clamping angle plate (57) to slide in the vertical direction.

4. The auxiliary system for assembling and welding the frame of a civil defense door according to claim 1, characterized in that: Also includes: A positioning plate (42) is vertically set and slidably connected to one side of the welding table (4), and a positioning component for positioning the steel sheet (12) is provided on one side of the positioning plate (42); Positioning end blocks (46) are positioned opposite each other on the welding table (4), and the two positioning end blocks (46) slide towards each other on the welding table (4) to position the steel plate (1). A welding area is formed between the positioning plate (42) and the positioning end block (46) which is disposed opposite to it.

5. The auxiliary system for assembling and welding the frame of a civil defense door according to claim 1, characterized in that: Also includes: A stabilizing mechanism (51) is provided at two opposite corners of the base platform (5), and the stabilizing mechanism (51) slides back and forth in the direction closer to the base platform (5).

6. A welding method for an auxiliary system for assembling and welding the frame of a civil defense door according to claim 4, comprising the following steps: The steel plate (1) is placed vertically in the welding area of ​​the welding table (4), and multiple steel plates (12) are placed on the positioning assembly of the positioning plate (42). The welder works with the positioning assembly to complete the welding of a single steel plate. The hoisting device transports the welded single steel plate to the top of the base platform (5), with both ends of the steel plate placed in the first clamping groove (532) and the first limiting groove (562) respectively; The second limiting block (561) slides along a sliding direction parallel to the first limiting block (531) to install the remaining steel plate (1) into the second clamping groove (533) and the second limiting groove (563), and the first limiting block (531) and the second limiting block (561) slide to the preset position in sequence.

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