Tool for civil air defense door welding and welding process thereof

Abstract

The invention discloses a tool for civil air defense door welding and a welding process of the tool, and relates to the field of civil air defense engineering, the tool comprises a mounting base, a positioning assembly, a clamping assembly, a detection assembly and a first transmission assembly, and the positioning assembly comprises a baffle and a positioning block which are mounted on the mounting base; a clamping cavity allowing the first side edge of the angle iron to penetrate is formed between the baffle and the positioning block, and the top face of the positioning block is provided with a bearing face used for bearing the second side edge of the angle iron. The clamping assembly comprises a clamping block which is slidably connected to the positioning block and used for pushing the first side edge of the angle iron to the baffle. The detection assembly and the first transmission assembly are both arranged on the positioning block, the detection assembly and the baffle are used in cooperation so as to detect the thickness of the first side edge of the angle iron, and the first transmission assembly is in transmission connection with the detection assembly and the clamping assembly so as to adjust the clamping force of the clamping assembly on the first side edge of the angle iron. The civil air defense door frame production equipment has the effect of improving the production efficiency of civil air defense door frames and the stability of product quality.

Description

Technical Field

[0001] The present application relates to the field of civil air defense engineering, and in particular to a welding tool for civil air defense doors and a welding process thereof. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. The function of civil defense doors is to effectively protect the safety of personnel and materials in the event of war or disaster. They can resist hazards such as shock waves, radioactive contamination, chemical agents, and can also prevent the spread of fire and smoke. There are many types of civil defense doors. According to different usage scenarios and functional requirements, there are protective closed doors, closed doors, explosion-proof wave valves, etc. The design and manufacture of these doors need to comply with strict standards and specifications to ensure their protection performance and reliability.

[0003] In the related art, a door frame of a civil air defense door is made of four angle irons welded together. In order to ensure the geometric accuracy of the door frame, it is necessary to pre-join it before welding. By using some pads or blocks, one outer side surface of the four angle irons is perpendicular to the same plane, and the other outer side surfaces are ensured to be on the same horizontal plane. However, in actual operation, this process is not only time-consuming and labor-intensive, but also requires re-joining and re-sizing of the new angle irons after each welding or replacement of angle irons of different thicknesses. This practice leads to low production efficiency and makes it difficult to ensure product consistency and quality stability. Summary of the invention

[0004] In order to improve the production efficiency of civil air defense door frames and the stability of product quality, the present application provides a civil air defense door welding tool and a welding process thereof.

[0005] The first aspect of the present application provides a welding tool for civil air defense doors adopts the following technical solution: A tool for welding a civil air defense door, comprising a mounting base; A positioning assembly, comprising a baffle and a positioning block installed on the mounting base, a clamping cavity for the first side of the angle iron to pass through is formed between the baffle and the positioning block, and a supporting surface for supporting the second side of the angle iron is provided on the top surface of the positioning block; a clamping assembly, comprising a clamping block slidably connected to the positioning block, and the clamping block is used to push the first side of the angle iron toward the baffle; a detection assembly, arranged on the positioning block, the detection assembly is used in conjunction with the baffle to detect the thickness of the first side of the angle iron; a first transmission assembly, arranged on the positioning block, the first transmission assembly is respectively connected to the detection assembly and the clamping assembly for adjusting the clamping force of the clamping assembly on the first side of the angle iron.

[0006] By adopting the above technical solution, when using the welding tool for civil air defense doors to pre-splice angle irons, the first side of the angle iron can be placed into the clamping cavity to achieve accurate positioning and firm clamping of the angle iron, thereby improving the production efficiency of the door frame of the civil air defense door and the stability of product quality. Specifically, the coordinated use of the baffle and the clamping assembly can ensure that the first side of the angle iron is accurately fixed at a predetermined position in the clamping cavity to avoid displacement during the welding process; the supporting surface of the top surface of the positioning block can stably support the second side of the angle iron, ensuring the accurate positioning of the angle iron; the coordinated use of the detection assembly and the first transmission assembly can detect the thickness of the first side of the angle iron, and adaptively adjust the clamping force of the clamping assembly on the first side of the angle iron, thereby dynamically adjusting the clamping force of angle irons with different first side thicknesses.

[0007] Optionally, the clamping assembly also includes a push plate and an elastic member. A first sliding groove is provided on one side of the positioning block close to the clamping cavity for the clamping block to slide into. The push plate is slidably connected in the first sliding groove. The elastic member is respectively connected to the push plate and the clamping block. The first transmission assembly can adjust the position of the push plate to change the clamping force of the first side of the diagonal iron of the clamping block.

[0008] By adopting the above technical solution, the push plate and elastic member in the clamping assembly can ensure that the clamping block applies a stable clamping force to the first side of the angle iron. When the clamping force needs to be adjusted, the first transmission assembly can accurately adjust the position of the push plate, thereby achieving fine adjustment of the position of the clamping block. At the same time, the elastic member enables the clamping block to automatically adjust when subjected to external force changes, avoiding processing quality problems caused by clamping too tight or too loose. This design not only improves the stability and reliability of clamping, but also enables rapid switching between angle irons of different sizes or thicknesses, thereby improving the scope of application and ease of operation of the tooling.

[0009] Optionally, the detection assembly includes a detection slider and a first return spring, and a second slide groove for the detection slider to slide into is opened on the side of the positioning block close to the clamping cavity, and the first return spring is arranged between the second slide groove and the detection slider and is used to make the detection slider pop out toward the baffle direction.

[0010] By adopting the above-mentioned technical solution, the detection slider can automatically pop out toward the baffle under the action of the first return spring, thereby accurately contacting the first side of the angle iron and realizing real-time detection of its thickness. When the thickness of the first side of the angle iron changes, the detection slider will move accordingly to ensure the accuracy of the detection result.

[0011] Optionally, the first transmission assembly includes a first active rack, a first relay gear, a second relay gear and a first driven rack that are meshed in sequence, the first active rack is connected to the detection slider and extends along the sliding direction of the detection slider, the first relay gear and the second relay gear are rotatably connected to the positioning block, and the first driven rack is connected to the push plate and extends along the sliding direction of the push plate.

[0012] By adopting the above technical solution, when the first side of the angle iron is clamped, the detection slider will pop out towards the baffle under the action of the first return spring, so as to contact the first side of the angle iron and detect its thickness. At this time, the detection slider drives the first active rack to move along the sliding direction, and the first active rack drives the first driven rack to move along the sliding direction of the push plate through the transmission of the first relay gear and the second relay gear. This process causes the position of the push plate to change, thereby changing the clamping force of the clamping block on the first side of the angle iron, which not only ensures the precise control of the clamping force, but also improves the adaptability and stability of the tooling, and avoids deformation or damage of the angle iron caused by improper clamping force.

[0013] Optionally, the end of the detection slider facing away from the first return spring is wedge-shaped with the narrow end of the wedge facing the baffle, and the end of the clamping block facing the baffle is wedge-shaped with the narrow end of the wedge facing the baffle.

[0014] By adopting the above technical solution, the wedge-shaped design of the detection slider helps to reduce the friction between the detection slider and the angle iron, so that the detection slider can more sensitively respond to the change in the thickness of the angle iron when contacting the first side of the angle iron, thereby improving the detection accuracy and extending the service life of the detection slider; the wedge-shaped design of the clamping block helps to reduce the friction between the clamping block and the angle iron, and when contacting the first side of the angle iron, the clamping block can slide into the second slide groove, so that the first side of the angle iron is clamped after being stuck between the clamping block and the baffle.

[0015] Optionally, a welding tool for a civil air defense door also includes a welding slag cleaning assembly, the welding slag cleaning assembly includes a welding slag push plate arranged in the clamping cavity close to one side of the positioning block, the baffle is located on one side of the clamping cavity and is provided with a welding slag collecting groove connected to the clamping cavity, a second transmission assembly is arranged in the positioning block, and the second transmission assembly is used to convert the movement of the second side of the angle iron into the movement of the welding slag push plate to push the welding slag in the clamping cavity into the welding slag collecting groove.

[0016] By adopting the above technical solution, the slag pusher can move synchronously with the movement of the second side of the angle iron under the action of the second transmission component, so as to push the slag accumulated in the clamping cavity to the slag collection tank. This can not only effectively remove the slag in the clamping cavity and prevent the accumulation of slag from affecting the subsequent welding quality, but also improve the cleanliness of the tooling and extend the service life of the equipment. In addition, the setting of the slag collection tank facilitates the centralized treatment of slag, reduces the workload of manual cleaning, and improves work efficiency.

[0017] Optionally, the second transmission assembly includes a second driven rack slidably inserted into the positioning block, a second active rack and a third relay gear rotatably connected to the positioning block, one end of the second driven rack is connected to the welding slag push plate and extends in the opposite direction of the pushing direction of the welding slag push plate, the other end of the second driven rack is meshed with the second active rack gear through the third relay gear, and the other end of the second active rack passes through the supporting surface and can abut against the second side edge of the angle iron.

[0018] By adopting the above technical solution, when the second side of the angle iron is placed on the supporting surface, the second active rack contacts and is pressed against the second side of the angle iron, thereby driving the second active rack to move downward. The second active rack transmits power to the second driven rack through the third relay gear, so that the second driven rack drives the welding slag push plate to push toward the baffle, and then pushes the welding slag in the clamping cavity into the welding slag collection tank, realizing the function of automatically cleaning the welding slag. This design not only improves the automation degree of the tooling, but also effectively reduces the workload of manual cleaning of welding slag, thereby improving work efficiency.

[0019] Optionally, one end of the second active rack meshing with the third relay gear is provided with a second return spring for causing the other end of the second active rack to pop out of the supporting surface.

[0020] By adopting the above technical solution, the setting of the second reset spring enables the second active rack to automatically reset when there is no external force, ensuring that one end of the second active rack is always in a pop-up state and maintains contact with the second side of the angle iron, thereby ensuring that the welding slag push plate can respond accurately when the second side of the angle iron moves.

[0021] Optionally, one end of the second active rack passing through the supporting surface is provided with an abutment plate that can abut against the second side edge of the angle iron, and the supporting surface is provided with a clearance groove for the abutment plate to be completely embedded therein.

[0022] By adopting the above technical solution, when the second side of the angle iron is placed on the supporting surface, the abutment plate can accurately contact the second side of the angle iron, ensuring that the movement of the welding slag push plate is precisely synchronized with the movement of the second side of the angle iron. At the same time, the design of the clearance groove allows the abutment plate to be completely embedded in the supporting surface when not working, avoiding affecting the normal placement and welding operation of the angle iron, thereby improving the stability and reliability of the tooling.

[0023] The second aspect of the present application also provides a civil air defense door welding process, comprising the following steps, S1: placing the first side of the angle iron into the clamping cavity for clamping, so that the detection slider and the clamping block abut against the side of the first side of the angle iron facing away from the baffle, so that the supporting surface and the abutment plate abut against the second side of the angle iron, and the abutment plate is embedded in the yield groove; S2: pre-assemble the angle iron into a door frame shape, adjust the relative positions of adjacent angle irons, so that the position accuracy of adjacent angle irons meets predetermined requirements; S3: weld the adjacent angle iron joints to form a civil air defense door frame.

[0024] By adopting the above technical solution, it is necessary to pre-splice the angle iron before welding the civil air defense door frame. The first side of the angle iron can be placed in the clamping cavity to accurately position and firmly clamp the angle iron, thereby realizing rapid positioning and clamping of the angle iron of the pre-spliced ​​door frame, thereby improving the production efficiency of the civil air defense door frame and the stability of product quality.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. When using the civil air defense door welding tooling to pre-splice angle irons, the first side of the angle iron can be placed into the clamping cavity to achieve precise positioning and firm clamping of the angle iron, thereby improving the production efficiency of the civil air defense door frame and the stability of product quality. Specifically, the coordinated use of the baffle and the clamping assembly can ensure that the first side of the angle iron is accurately fixed at the predetermined position in the clamping cavity to avoid displacement during the welding process; the supporting surface of the top surface of the positioning block can stably support the second side of the angle iron, ensuring the precise positioning of the angle iron; the coordinated use of the detection assembly and the first transmission assembly can detect the thickness of the first side of the angle iron, and adaptively adjust the clamping force of the clamping assembly on the first side of the angle iron, thereby dynamically adjusting the clamping force of angle irons with different first side thicknesses; 2. When the first side of the angle iron is clamped, the detection slider will pop out toward the baffle under the action of the first return spring, thereby contacting the first side of the angle iron and detecting its thickness. At this time, the detection slider drives the first active rack to move along the sliding direction, and the first active rack drives the first driven rack to move along the sliding direction of the push plate through the transmission of the first relay gear and the second relay gear. This process causes the position of the push plate to change, and then changes the clamping force of the clamping block on the first side of the angle iron. This not only ensures the precise control of the clamping force, but also improves the adaptability and stability of the tooling, and avoids deformation or damage of the angle iron due to improper clamping force. At the same time, the design has a simple structure, easy operation, and convenient maintenance and debugging; 3. When the second side of the angle iron is placed on the supporting surface, the second active rack contacts and is pressed against the second side of the angle iron, thereby driving the second active rack to move downward. The second active rack transmits power to the second driven rack through the third relay gear, so that the second driven rack drives the slag push plate to push toward the baffle, and then pushes the slag in the clamping cavity into the slag collection tank, realizing the function of automatically cleaning the slag. This design not only improves the automation degree of the tooling, but also effectively reduces the workload of manual cleaning of slag, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0027] Figure 2 It is an exploded view of Example 1 of the present application.

[0028] Figure 3 It is a schematic diagram of the internal structure of Example 1 of the present application.

[0029] Figure 4 yes Figure 3 A partial enlarged view of part A.

[0030] Figure 5 yes Figure 3 A partial enlarged view of part B.

[0031] Explanation of the reference numerals: 100, angle iron; 1, mounting base; 11, working platform; 12, supporting leg; 2, positioning assembly; 21, baffle; 211, welding slag collecting groove; 22, positioning block; 221, supporting surface; 222, first slide groove; 223, second slide groove; 224, clearance groove; 3, clamping assembly; 31, clamping block; 32, push plate; 33, elastic member; 4, detection assembly; 41, detection slider; 42, first return spring; 5, first transmission assembly; 51, first active rack; 52, first relay gear; 53, second relay gear; 54, first driven rack; 6, welding slag cleaning assembly; 61, welding slag push plate; 7, second transmission assembly; 71, second active rack; 72, third relay gear; 73, second driven rack; 8, second return spring; 9, abutment plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a tool for welding civil air defense doors.

[0034] Example 1 Reference Figure 1-Figure 2 In this embodiment, the tooling includes a mounting base 1 and a clamp arranged on the mounting base 1 for positioning four angle irons 100 when pre-assembling the door frame. The number of the clamps is eight sets, with two sets used for each angle iron 100. The clamp includes a positioning component 2, a clamping component 3, a detection component 4 and a first transmission component 5.

[0035] Specifically, the mounting base 1 includes a work platform 11 in the shape of a Chinese character U and support legs 12 for supporting the work platform 11. The support legs 12 are welded at the four corners of the bottom surface of the work platform 11. The mounting base 1 is the basic support part of the entire tooling and is made of high-strength steel plates to ensure that it has good rigidity and stability. The positioning assembly 2 includes a baffle 21 and a positioning block 22. The baffle 21 is installed on the inner side of the work platform 11 by bolts. The abutment surface of the baffle 21 is set perpendicular to the horizontal plane. The abutment surface of the baffle 21 is finely processed and hardened to ensure its flatness and increase its service life.

[0036] Reference Figure 2 and Figure 3The positioning block 22 is installed on the top surface of the working platform 11 by bolts for easy disassembly and assembly. A clamping cavity for the first side edge of the angle iron 100 to pass through is formed between the baffle 21 and the positioning block 22. The top surface of the positioning block 22 is a supporting surface 221 for supporting the second side edge of the angle iron 100. The supporting surface 221 is perpendicular to the abutting surface of the baffle 21 and parallel to the horizontal plane. In other embodiments, the baffle 21 can also be fixed on the positioning block 22, and the abutting surface of the baffle 21 can also be provided with a roller for reducing friction with the angle iron 100. The baffle 21 can be welded to the mounting base 1 or be an integrated structure with the mounting base 1. The positioning block 22 can also be welded to the mounting base 1.

[0037] Reference Figure 3 The first chute 222 is a first chute 222 formed on the first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 formed on the first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 formed on the first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 formed on the first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 formed on the first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 is a first chute 222 of the positioning block 22. The first chute 222 of the positioning block 22 is a first chute 222 of the positioning block 22. The first chute 222 of the positioning block 22

[0038] One end of the clamping block 31 away from the clamping end abuts against the elastic member 33, and one end of the elastic member 33 away from the clamping block 31 abuts against the push plate 32. The elastic member 33 is a coil spring. The main function of the elastic member 33 is to provide the clamping block 31 with a thrust to push the first side of the angle iron 100 toward the baffle 21 and to fit closely with the abutting surface of the baffle 21, thereby ensuring the verticality of the first side of the angle iron 100 and preventing the angle iron 100 from loosening during welding. In other embodiments, the clamping end of the clamping block 31 can be arc-shaped or spherical, the clamping block 31 can also be made of cemented carbide, and a roller for reducing the friction between the clamping block 31 and the first side of the angle iron 100 can be installed on the abutting surface of the clamping end of the clamping block 31, and the elastic member 33 can also be a tension spring.

[0039] Reference Figure 3In the present embodiment, the detection assembly 4 is used in conjunction with the baffle plate 21 to detect the thickness of the first side of the angle iron 100. The detection assembly 4 includes a detection slider 41 and a first return spring 42. The positioning block 22 is provided with a second slide groove 223 which is perpendicular to the abutment surface of the abutment plate 9 and is provided near the clamping cavity on one side thereof; the detection slider 41 is made of high-strength steel to ensure that it has high strength and wear resistance. The end of the detection slider 41 facing the baffle plate 21 is the abutment end. The abutment end of the detection slider 41 is wedge-shaped, and the narrow end of the wedge faces the baffle plate 21. The inclined surface of the wedge faces the parts insertion entrance of the clamping cavity, so that the first side of the angle iron 100 can slide and abut the detection slider 41 when it is inserted into the clamping cavity, so that the detection slider 41 abuts against the first side of the angle iron 100 away from the baffle plate 21 after the detection slider 41 slides into the second slide groove 223.

[0040] One end of the detection slider 41 away from the abutting end abuts against the first return spring 42, and one end of the first return spring 42 away from the detection slider 41 abuts against one end of the second slide slot 223 away from the notch. The main function of the first return spring 42 is to provide a certain elastic force for the detection slider 41 to make the detection slider 41 pop out toward the baffle 21, so that the detection assembly 4 can detect the angle iron 100 with different thicknesses of the first side. In other embodiments, the abutting end of the detection slider 41 can be arc-shaped or spherical, and the detection slider 41 can also be made of hard alloy. A roller for reducing the friction between the detection slider 41 and the baffle 21 can also be installed on the abutting surface of the abutting end of the detection slider 41.

[0041] Reference Figure 3 and Figure 4 In this embodiment, the first transmission component 5 is transmission-connected with the detection component 4 and the clamping component 3 for adjusting the clamping force of the first side of the diagonal iron 100 of the clamping component 3. The first transmission component 5 includes a first active rack 51, a first relay gear 52, a second relay gear 53 and a first driven rack 54 that are meshed in sequence. The first active rack 51 is connected to the detection slider 41 and extends along the sliding direction of the detection slider 41. The first relay gear 52 and the second relay gear 53 are rotationally connected to the positioning block 22. The gear ratio of the first relay gear 52 and the second relay gear 53 is 1:1. The first driven rack 54 is connected to the push plate 32 and extends along the sliding direction of the push plate 32. When the detection slider 41 is abutted by the first side of the angle iron 100 and slides into the second slide groove 223, the first active rack 51 drives the first relay gear 52 to rotate, and then transmits it to the first driven rack 54 through the second relay gear 53, thereby pushing the push plate 32 to move in the sliding direction of the detection slider 41 to change the clamping force of the clamping block 31 on the first side of the angle iron 100. In other embodiments, the gear ratio of the first relay gear 52 and the second relay gear 53 can be adjusted as needed.

[0042] Reference Figure 2 , Figure 3 and Figure 5 In this embodiment, the tooling also includes a slag cleaning assembly 6 and a second transmission assembly 7 for converting the movement of the second side of the angle iron 100 into the movement of the slag pushing plate 61 to push the slag in the clamping cavity into the slag collecting tank 211.

[0043] The welding slag cleaning assembly 6 includes a welding slag pushing plate 61 arranged in the clamping cavity near one side of the positioning block 22, and the welding slag pushing plate 61 is made of high-strength steel to ensure that it has high strength and wear resistance; one side of the welding slag pushing plate 61 is slidably abutted against the top surface of the mounting base 1 and the sliding direction of the welding slag pushing plate 61 is perpendicular to the abutting surface of the baffle 21; the width of the welding slag pushing plate 61 is greater than or equal to the width of the baffle 21 to ensure that the welding slag pushing plate 61 can effectively clean the welding slag in the clamping cavity, and the abutting surface of the baffle 21 is provided with a welding slag collecting groove 211 connected to the clamping cavity, and the welding slag pushing plate 61 can slide into the welding slag collecting groove 211, and the welding slag collecting groove 211 is inclined to the horizontal plane. When the welding slag pushing plate 61 pushes the welding slag in the clamping cavity to the welding slag collecting groove 211, the welding slag can slide along the inclined surface in the welding slag collecting groove 211 to the welding slag collecting device on the ground, so as to collect and clean the welding slag.

[0044] Reference Figure 3 and Figure 5 In this embodiment, the second transmission assembly 7 includes a second driven rack 73 slidably inserted into the positioning block 22, a second active rack 71, and a third relay gear 72 rotatably connected to the positioning block 22. One end of the second driven rack 73 is connected to the welding slag push plate 61 and extends in the opposite direction of the pushing direction of the welding slag push plate 61. The other end of the second driven rack 73 is meshed with the second active rack 71 through the third relay gear 72. Preferably, the second driven rack 73 is staggered with the second active rack 71, and the sliding direction of the second driven rack 73 is perpendicular to the abutting surface of the baffle 21, and the sliding direction of the second driven rack 73 is parallel to the abutting surface of the baffle 21.

[0045] Reference Figure 3 and Figure 5In this embodiment, one end of the second active rack 71 that faces away from the third relay gear 72 passes through the supporting surface 221, and the end surface of one end of the second active rack 71 that meshes with the third relay gear 72 abuts against a second return spring 8 for causing the other end of the second active rack 71 to pop out of the supporting surface 221. One end of the second active rack 71 that passes through the supporting surface 221 is welded with an abutment plate 9 that can abut against the second side of the angle iron 100, and a clearance groove 224 is provided on the supporting surface 221 for the abutment plate 9 to be completely embedded. Preferably, the length of the second active rack 71 passing through the supporting surface 221 is equal to the maximum stroke that the push plate 32 can push, and the side of the abutment plate 9 that is used to abut against the second side of the angle iron 100 has a high flatness. In other embodiments, the second active rack 71 and the abutment plate 9 can be an integrated structure or detachably connected by bolts, and a buffer gasket can be provided on the abutment surface of the abutment plate 9 to mitigate the impact force from the second side of the angle iron 100.

[0046] The implementation principle of this embodiment 1 is: through the connection of the purely mechanical structure of the parts, the angle iron 100 can be accurately positioned and clamped without external drive and cumbersome operation; when the angle iron 100 needs to be pre-assembled, the first side of the angle iron 100 is inserted into the clamping cavity, the first side of the angle iron 100 abuts against the detection slider 41 and moves it, and the detection slider 41 makes the baffle 21 in the clamping assembly 3 move the same distance following its own moving direction through the first transmission assembly 5, so as to dynamically adjust the clamping force of the clamping block 31 on the first side of the angle iron 100 according to the actual thickness of the first side of the angle iron 100, so that the pre-assembled The operation of connecting the angle iron 100 is simpler and faster, and can be applied to angle irons 100 of different specifications, thereby improving production efficiency and product quality, and reducing the difficulty and work intensity of manual operation; in addition, through the linkage design of the welding slag cleaning component 6 and the second transmission component 7, the welding slag in the clamping cavity is automatically cleaned by pressing down the second side of the angle iron 100 when clamping the angle iron 100, so that the welding slag generated by welding can be cleaned in time, avoiding the problem of welding slag accumulation affecting the clamping accuracy of the angle iron 100. This design further improves the welding quality and simplifies the subsequent cleaning work, saving time and labor costs.

[0047] Example 2 Embodiment 2 of the present application also discloses a civil air defense door welding process using the civil air defense door welding tool as described above, which comprises the following steps: S1: Place the first side of the angle iron 100 into the clamping cavity and clamp it, so that the detection slider 41 and the clamping block 31 abut against the side of the first side of the angle iron 100 that is away from the baffle 21, and the supporting surface 221 and the abutment plate 9 abut against the second side of the angle iron 100, so that the abutment plate 9 is embedded in the clearance groove 224.

[0048] S2: pre-assemble the angle irons 100 into a door frame shape, and adjust the relative positions of adjacent angle irons 100 so that the position accuracy of adjacent angle irons 100 meets the predetermined requirements.

[0049] S3: Weld the adjacent angle iron 100 joints to form a civil air defense door frame. After welding is completed, take out the civil air defense door frame as a whole.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool for welding civil air defense doors, characterized in that: include: A mounting base (1); a positioning assembly (2), comprising a baffle (21) and a positioning block (22) mounted on the mounting base (1); a clamping cavity for a first side edge of the angle iron (100) to pass through is formed between the baffle (21) and the positioning block (22); a top surface of the positioning block (22) is provided with a supporting surface (221) for supporting a second side edge of the angle iron (100); a clamping assembly (3), comprising a clamping block (31) slidably connected to the positioning block (22); the clamping block (31 ) is used to push the first side of the angle iron (100) toward the baffle (21); a detection component (4) is arranged on the positioning block (22), and the detection component (4) is used in conjunction with the baffle (21) to detect the thickness of the first side of the angle iron (100); a first transmission component (5) is arranged on the positioning block (22), and the first transmission component (5) is respectively connected to the detection component (4) and the clamping component (3) for adjusting the clamping force of the clamping component (3) on the first side of the angle iron (100).

2. The tooling for welding civil air defense doors according to claim 1, characterized in that: The clamping assembly (3) further comprises a push plate (32) and an elastic member (33); a first slide groove (222) for the clamping block (31) to be slidably arranged is provided on a side of the positioning block (22) close to the clamping cavity; the push plate (32) is slidably connected in the first slide groove (222); the elastic member (33) is respectively connected to the push plate (32) and the clamping block (31); and the first transmission assembly (5) is capable of adjusting the position of the push plate (32) to change the clamping force of the clamping block (31) on the first side of the diagonal iron (100).

3. The tooling for welding civil air defense doors according to claim 2 is characterized in that: The detection assembly (4) comprises a detection slider (41) and a first return spring (42); a second slide groove (223) for the detection slider (41) to slide into is provided on a side of the positioning block (22) close to the clamping cavity; the first return spring (42) is arranged between the second slide groove (223) and the detection slider (41) and is used to cause the detection slider (41) to pop out in the direction of the baffle (21).

4. The tooling for welding civil air defense doors according to claim 3 is characterized in that: The first transmission assembly (5) comprises a first active rack (51), a first relay gear (52), a second relay gear (53) and a first driven rack (54) which are meshed in sequence; the first active rack (51) is connected to the detection slider (41) and extends along the sliding direction of the detection slider (41); the first relay gear (52) and the second relay gear (53) are rotatably connected to the positioning block (22); and the first driven rack (54) is connected to the push plate (32) and extends along the sliding direction of the push plate (32).

5. The tooling for welding civil air defense doors according to claim 3 is characterized in that: The end of the detection slide block (41) facing away from the first return spring (42) is wedge-shaped, with the narrow end of the wedge facing the baffle (21), and the end of the clamping block (31) facing the baffle (21) is wedge-shaped, with the narrow end of the wedge facing the baffle (21).

6. The tooling for welding civil air defense doors according to claim 1, characterized in that: The invention also includes a welding slag cleaning component (6), wherein the welding slag cleaning component (6) includes a welding slag pushing plate (61) arranged in the clamping cavity near the side of the positioning block (22), the baffle plate (21) is located on the side of the clamping cavity and is provided with a welding slag collecting groove (211) connected to the clamping cavity, and a second transmission component (7) is arranged in the positioning block (22), and the second transmission component (7) is used to convert the movement of the second side of the angle iron (100) into the movement of the welding slag pushing plate (61) so as to push the welding slag in the clamping cavity into the welding slag collecting groove (211).

7. The tooling for welding civil air defense doors according to claim 6, characterized in that: The second transmission assembly (7) comprises a second driven rack (73) slidably inserted into the positioning block (22), a second active rack (71), and a third relay gear (72) rotatably connected to the positioning block (22); one end of the second driven rack (73) is connected to the welding slag push plate (61) and extends in a direction opposite to the pushing direction of the welding slag push plate (61); the other end of the second driven rack (73) is meshedly connected to the second active rack (71) through the third relay gear (72); the other end of the second active rack (71) passes through the supporting surface (221) and can abut against the second side edge of the angle iron (100).

8. The tooling for welding civil air defense doors according to claim 7, characterized in that: One end of the second active rack (71) that meshes with the third relay gear (72) is provided with a second return spring (8) for causing the other end of the second active rack (71) to pop out of the supporting surface (221).

9. The tooling for welding civil air defense doors according to claim 8, characterized in that: An end of the second active rack (71) that passes through the supporting surface (221) is provided with an abutment plate (9) that can abut against the second side edge of the angle iron (100), and a clearance groove (224) is provided on the supporting surface (221) for the abutment plate (9) to be completely embedded therein.

10. A civil air defense door welding process, based on a civil air defense door welding tool as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: placing the first side of the angle iron (100) into the clamping cavity for clamping, so that the detection slider (41) and the clamping block (31) abut against the side of the first side of the angle iron (100) which is away from the baffle plate (21), so that the supporting surface (221) and the abutting plate (9) abut against the second side of the angle iron (100), and so that the abutting plate (9) is embedded in the clearance groove (224); S2: pre-assembling the angle iron (100) into a door frame shape, adjusting the relative positions of adjacent angle irons (100) so that the position accuracy of adjacent angle irons (100) meets the predetermined requirements; S3: welding the joints of adjacent angle irons (100) to form a civil air defense door frame, and after the welding is completed, taking out the civil air defense door frame as a whole.

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