Magnetic attraction metal door welding and assembling device and process

Abstract

The invention relates to the technical field of metal door welding and assembling equipment, in particular to a magnetic attraction metal door welding and assembling device and process, the magnetic attraction metal door welding and assembling device comprises two positioning plates, and each positioning plate is provided with a clamping assembly, a spring and a push block; a first sliding groove is formed in the positioning plate, the length direction of the first sliding groove is the same as that of the positioning plate, the clamping assembly and the push block are clamped in the first sliding groove and can move relative to the first sliding groove in the length direction of the first sliding groove, one end of the spring is connected with the clamping assembly, and the other end of the spring is connected with the push block. A first cavity is formed between the push block and the first sliding groove, the first cavity is provided with an inflation device in a matched mode, and the inflation device is used for changing the gas amount of the first cavity so as to push the push block to move relative to the first sliding groove. According to the magnetic attraction metal door welding and assembling device and process, air holes in the welding seam can be reduced, and the welding firmness of the metal door is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal door welding and assembly equipment, and particularly relates to a magnetic adsorption metal door welding and assembly device and process. Background Art

[0002] As a core load-bearing and connecting component of a building door and window system, the structural strength, dimensional accuracy, and durability of a metal door directly affect the sealing performance, safety, and service life of the door and window. Among them, the door frame of a metal door is usually fixed by welding, and its welding process is a key link in the manufacture of metal doors, and its quality directly determines the mechanical properties and assembly fit of the door frame.

[0003] During the welding process of metal doors, pores at the weld are one of the common defect types. These pores are cavity defects formed by the failure of gases in the molten pool to escape in time during the welding process. The existence of pores will accelerate the penetration of corrosive media. Especially in coastal high-temperature and high-salt environments, pitting corrosion is likely to occur around the pores, significantly shortening the service life of metal doors.

[0004] Therefore, how to reduce the pores at the weld to improve the welding firmness of metal doors is a technical problem that urgently needs to be solved at present. Summary of the Invention

[0005] The purpose of the present invention is to provide a magnetic adsorption metal door welding and assembly device and process to reduce the pores at the weld and improve the welding firmness of metal doors, aiming at the deficiency that pores exist at the weld during the current metal door welding process.

[0006] To achieve the above invention purpose, the present invention provides the following technical solutions: A magnetic adsorption metal door welding and assembly device includes two positioning plates, the two positioning plates are perpendicular and relatively fixed, and a clamping assembly, a spring, and a push block are arranged on the positioning plates. The clamping assembly is used for clamping the door frame. A first sliding groove is formed on the positioning plate, and the length direction of the first sliding groove is the same as the length direction of the positioning plate. The clamping assembly and the push block are both stuck in the first sliding groove, and both the clamping assembly and the push block can move relative to the first sliding groove along the length direction of the first sliding groove. One end of the spring is connected to the clamping assembly, and the other end is connected to the push block. A first chamber is formed between the push block and the first sliding groove, and an inflation device is adapted to the first chamber. The inflation device is used to change the gas volume in the first chamber to push the push block to move relative to the first sliding groove.

[0007] As a preferred technical solution of the present application, the end of the positioning plate close to the other positioning plate is the first end, and the end of the positioning plate far from the other positioning plate is the second end. A first baffle is arranged in the first chute, and the first baffle is used to abut against the clamping assembly to limit the movement of the clamping assembly in the direction from the first end to the second end.

[0008] As a preferred technical solution of the present application, an air outlet pipe is further arranged on the positioning plate. The air outlet pipe is communicated with the first chamber, and a first switch is arranged on the air outlet pipe. The first switch is used to control the opening and blocking of the air outlet pipe and control the size of the flow cross-section when the gas flows through the first switch.

[0009] As a preferred technical solution of the present application, the first switch includes a first base and a first cap body. The first base is connected to the air outlet pipe, a first opening is arranged on the first base, a second opening is arranged on the second base, and the first base is rotatably connected to the first cap body. By rotating the first cap body relative to the first base, the overlapping area of the first opening and the second opening is adjusted to adjust the size of the flow cross-section when the gas flows through the first switch.

[0010] As a preferred technical solution of the present application, a universal shaping pipe is sleeved outside the air outlet pipe, and the universal shaping pipe is a pipe structure that can be bent and can maintain its shape.

[0011] As a preferred technical solution of the present application, the clamping assembly includes a clamping table, a fitting groove is formed on the clamping table, and the fitting groove is used for the door frame to pass through. Two groups of fixing components are arranged on the clamping table, one group of fixing components is located on the side of the fitting groove, and the other group of fixing components is located on the top of the fitting groove. Each single fitting component includes two fixing knobs, and the fixing knobs are in threaded cooperation with the clamping table. The two fixing knobs on the same group of fixing components are arranged along the length direction of the fitting groove, and the fixing knobs are used to abut against the door frame so that the fixing components cooperate with the fitting groove to clamp the door frame.

[0012] As a preferred technical solution of the present application, the clamping assembly further includes a base, and the clamping assembly is stuck in the first chute through the base; the base is movably matched with the clamping table; a first knob is rotatably connected to the clamping table, and the first knob is in threaded cooperation with the base. By rotating the first knob relative to the base, the clamping table moves relative to the base along the length direction of the base.

[0013] As a preferred technical solution of the present application, an inflation interface is arranged on the positioning plate. The inflation device includes an inflation and extraction device body and an inflation pipe, and the inflation interface is used to connect the inflation pipe.

[0014] As a preferred technical solution of the present application, it further includes a connecting plate. The connecting plate is in an arc structure. One end of the connecting plate is connected to one of the positioning plates, and the other end is connected to the other positioning plate. The opening direction of the arc structure of the connecting plate faces away from the positioning plates.

[0015] A magnetic adsorption metal door welding and assembling process is also provided. Using a magnetic adsorption metal door welding and assembling device as described above, it includes the following steps: Step 1: Fix the door frame so that the clamping assembly clamps the door frame to make the two door frames to be welded relatively fixed. Step 2: Weld the door frame and weld the welded part between the two clamped door frames. Step 3: Apply pressure to the weld. Use the inflation device to inflate the first chamber so that the weld between the two door frames is squeezed.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In the solution of the present application, by setting two positioning plates and arranging a clamping assembly on the positioning plates, when welding the metal door, the clamping assembly clamps the metal door frame, so that a metal door frame is fixed on each positioning plate. During the process of clamping the metal door frame, the operator can adjust the relative positions of the two metal door frames and fix the metal door frames relative to their respective corresponding positioning plates after adjustment. Then, use a welding tool to weld the connecting parts of the adjacent two metal door frames, so that the two metal door frames form an integrated structure. After a weld is formed at the connecting part, by controlling the inflation device, the inflation device changes the gas volume in the first chamber, and then pushes the push block to move relative to the first chute, increasing the deformation of the spring, so as to apply a force to the clamping assembly, and then apply a thrust force to the metal door frame corresponding to the clamping assembly in the direction towards the other metal door frame, so that the weld is squeezed. In a short time after welding, the temperature at the weld is relatively high and the weld metal is not completely solidified. At this time, applying a squeezing force to the weld can densify the weld metal, refine its grains, and at the same time can extrude the gas in its molten pool, thereby reducing pores, so as to improve the welding firmness of the metal door; 2. Further, by setting a first switch on the air outlet pipe to control the size of the flow cross-section when the gas flows through the first switch. After welding two adjacent metal door frames, when injecting gas into the first chamber, the flow cross-section corresponding to the first switch can be set to a smaller value at this time. In this way, the gas injected into the first chamber is difficult to be discharged from the air outlet pipe in a short time. The gas in the first chamber pushes the push block to move, applying a thrust to the spring and the clamping assembly. As a result, the spring is compressed, storing elastic potential energy, and the metal door frame corresponding to the clamping assembly presses on the other metal door frame, thereby pressing on the weld seam. At this time, after stopping the gas injection into the first chamber, since the gas in the first chamber can gradually leak out from the air outlet pipe, as the gas leaks out, the compression amount of the spring gradually decreases, and the pressure exerted by the metal door frame corresponding to the clamping assembly on the other metal door frame gradually decreases, so that the extrusion effect on the weld seam gradually decreases. In this way, in the early stage of forming the weld seam, the extrusion effect on the weld seam is large, which is conducive to the densification of the weld metal and the discharge of gas; in the later stage of forming the weld seam, the extrusion effect on the weld seam is small. At this time, the weld metal gradually cools, which can avoid the weld seam from continuously receiving a strong load, thus improving the structural stability of the weld seam; 3. Further, by setting a universal shaping pipe, after shaping the universal shaping pipe, the air outlet pipe can be shaped synchronously. The air outlet pipe is of a soft structure. In this way, it is convenient to adjust the shape of the air outlet pipe. At the same time, the specific structure of the universal shaping pipe is prior art and will not be elaborated here. Therefore, after welding, the outlet of the air outlet pipe can be directed towards the weld seam. In the process of pressing on the weld seam and allowing the gas in the first chamber to gradually leak out from the air outlet pipe, the leaked gas can blow towards the weld seam, increasing the air flow rate at the weld seam, further refining the grain structure, and improving the strength and toughness of the weld metal; and the power source for the gas to leak out from the air outlet pipe is the elastic potential energy of the spring. Thus, on the one hand, the spring can promote the gas in the first chamber to be discharged from the air outlet pipe to increase the air flow rate at the weld seam, and on the other hand, it can gradually reduce the extrusion effect on the weld seam to avoid the weld seam from continuously receiving a strong load; 4. Further, by providing a base, the base is movably engaged with the clamping table. A clamping groove is provided on the base, and a clamping block is provided on the clamping table. The clamping block is engaged in the clamping groove and can move relative to the clamping groove along the length direction of the clamping groove. The length direction of the clamping groove is the same as the length direction of the positioning plate. At the same time, by providing a first knob, when the first knob rotates relative to the base, the clamping table moves relative to the base along the length direction of the base. Thus, when the clamping assembly abuts against the first baffle, after the metal door frame is fixed on the clamping assembly, when the adjacent metal door frames abut against each other to align their joints, by rotating the first knob, the clamping table moves relative to the base along the length direction of the base, so as to facilitate the formation of a gap at the welding joint of two adjacent metal door frames, and at the same time facilitate the control of the width of the gap, so as to facilitate the penetration of the weld during the welding process, improve the welding firmness, and facilitate the subsequent application of a thrust force to the door frame to extrude the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of one embodiment of a magnetic adsorption metal door welding and assembling device of the present application; Figure 2 FIG. is a schematic cross-sectional structural diagram at the positioning plate in one embodiment of a magnetic adsorption metal door welding and assembling device of the present application; Figure 3 FIG. is a schematic structural diagram at the first chamber in one embodiment of a magnetic adsorption metal door welding and assembling device of the present application; Figure 4 FIG. is a schematic structural diagram at the clamping assembly in one embodiment of a magnetic adsorption metal door welding and assembling device of the present application; Figure 5 FIG. is a schematic structural diagram at the first switch in one embodiment of a magnetic adsorption metal door welding and assembling device of the present application; Figure 6 FIG. is a schematic flow chart of one embodiment of a magnetic adsorption metal door welding and assembling process of the present application; Reference numerals in the figures: 1 - positioning plate, 2 - clamping assembly, 3 - spring, 4 - push block, 5 - first chute, 6 - first chamber, 7 - first end, 8 - second end, 9 - first baffle, 10 - air outlet pipe, 11 - first switch, 12 - first base, 13 - first cap, 14 - universal shaping tube, 15 - clamping table, 16 - mating groove, 17 - fixing assembly, 18 - fixing knob, 19 - base, 20 - first knob, 21 - inflation interface, 22 - charging and pumping body, 23 - charging pipe, 24 - connecting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention.

[0019] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0020] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0021] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present invention is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0023] Embodiment 1: A magnetic adsorption metal door welding and assembling device provided in this embodiment is shown as follows Figures 1-5 and includes two positioning plates 1. The two positioning plates 1 are perpendicular to each other and relatively fixed. A clamping assembly 2, a spring 3, and a push block 4 are arranged on the positioning plates 1. The clamping assembly 2 is used for clamping the door frame. A first chute 5 is formed on the positioning plate 1. The length direction of the first chute 5 is the same as the length direction of the positioning plate 1. The clamping assembly 2 and the push block 4 are both stuck in the first chute 5. The clamping assembly 2 and the push block 4 can both move relative to the first chute 5 along the length direction of the first chute 5. One end of the spring 3 is connected to the clamping assembly 2, and the other end is connected to the push block 4. A first chamber 6 is formed between the push block 4 and the first chute 5. The first chamber 6 is adapted to an inflation device, and the inflation device is used to change the gas volume in the first chamber 6 to push the push block 4 to move relative to the first chute 5.

[0024] In this application, by providing two positioning plates 1 and clamping assemblies 2 on the positioning plates 1, when welding a metal door, the clamping assemblies 2 clamp the metal door frame, so that a metal door frame is fixed on each positioning plate 1. During the clamping process of the metal door frame, the operator can adjust the relative positions of the two metal door frames and fix the metal door frames relative to their corresponding positioning plates 1 after adjustment. Then, a welding tool is used to weld the connecting parts of the adjacent two metal door frames, so that the two metal door frames form an integrated structure. After a weld seam is formed at the connecting part, by controlling the inflation device, the inflation device changes the gas volume in the first chamber 6, thereby pushing the push block 4 to move relative to the first chute 5, increasing the deformation of the spring 3, applying a force to the clamping assembly 2, and then applying a thrust force to the metal door frame corresponding to the clamping assembly 2 in the direction towards the other metal door frame, so that the weld seam is subjected to a squeezing effect. In a short time after welding, the temperature at the weld seam is relatively high and the weld metal is not fully solidified. At this time, applying a squeezing effect to the weld seam can densify the weld metal, refine its grains, and simultaneously extrude the gas in its molten pool, thereby reducing pores and improving the welding firmness of the metal door.

[0025] As a preferred embodiment, on the basis of the above method, further, the end of the positioning plate 1 close to the other positioning plate 1 is the first end 7, the end of the positioning plate 1 far from the other positioning plate 1 is the second end 8, and a first baffle 9 is arranged in the first chute 5. The first baffle 9 is used to abut against the clamping assembly 2 to limit the movement of the clamping assembly 2 in the direction from the first end 7 to the second end 8.

[0026] Further, by providing the first baffle 9, the first baffle 9 can limit the movement of the clamping assembly 2 in the direction from the first end 7 to the second end 8. Thus, when pushing the push block 4 to change the position of the clamping assembly 2, when the clamping assembly 2 abuts against the first baffle 9, on the basis that the metal door frame is fixed on the clamping assembly 2, the stability of the position of the metal door frame relative to the positioning plate 1 can be improved, thereby improving the stability of the relative positions of the two metal door frames and facilitating improving the welding accuracy in the subsequent welding process.

[0027] As a preferred embodiment, on the basis of the above method, further, an air outlet pipe 10 is also arranged on the positioning plate 1. The air outlet pipe 10 is communicated with the first chamber 6, and a first switch 11 is arranged on the air outlet pipe 10. The first switch 11 is used to control the opening and blocking of the air outlet pipe 10 and control the size of the flow cross-section when the gas flows through the first switch 11.

[0028] Further, by providing a first switch 11 on the air outlet pipe 10 to control the size of the flow cross-section when the gas flows through the first switch 11. After welding two adjacent metal door frames, by injecting gas into the first chamber 6, at this time, the flow cross-section corresponding to the first switch 11 can be made to be at a smaller value. In this way, the gas injected into the first chamber 6 is difficult to be discharged from the air outlet pipe 10 in a short time. The gas in the first chamber 6 pushes the push block 4 to move, so that the push block 4 applies a thrust to the spring 3 and the clamping assembly 2, and then the spring 3 is compressed, storing elastic potential energy in the spring 3, and making the metal door frame corresponding to the clamping assembly 2 press on another metal door frame, thereby pressing on the weld seam. At this time, after stopping the gas injection into the first chamber 6, since the gas in the first chamber 6 can gradually leak out from the air outlet pipe 10, as the gas leaks out, the compression amount of the spring 3 gradually decreases, and then the pressure applied by the metal door frame corresponding to the clamping assembly 2 on another metal door frame gradually decreases, so that the extrusion effect on the weld seam gradually decreases. In this way, in the early stage of forming the weld seam, the extrusion effect on the weld seam is relatively large, which is conducive to the densification of the weld metal and the discharge of gas; in the later stage of forming the weld seam, the extrusion effect on the weld seam is relatively small. At this time, the weld metal gradually cools, and it is possible to avoid the weld seam from continuously receiving a strong load, thereby improving the structural stability of the weld seam.

[0029] As a preferred embodiment, on the basis of the above method, further, the first switch 11 includes a first base 12 and a first cap 13. The first base 12 is connected to the air outlet pipe 10. A first opening is provided on the first base 12, and a second opening is provided on the second base. The first base 12 is rotatably connected to the first cap 13. By rotating the first cap 13 relative to the first base 12, the overlapping area of the first opening and the second opening is adjusted to adjust the size of the flow cross-section when the gas flows through the first switch 11.

[0030] Further, by providing the first base 12 and the first cap 13, when the first cap 13 rotates relative to the first base 12, the overlapping area of the first opening and the second opening changes, thereby adjusting the size of the flow surface when the gas flows through the first switch 11. After there is no overlapping area between the first opening and the second opening, the first switch 11 is in a blocked state. In this way, the provision of the first base 12 and the first cap 13 improves the convenience of adjusting the size of the flow cross-section of the first switch 11.

[0031] As a preferred embodiment, on the basis of the above method, further, a universal shaping tube 14 is sleeved outside the air outlet pipe 10. The universal shaping tube 14 is a pipe structure that can be bent and can maintain its shape.

[0032] Furthermore, by providing the universal shaping tube 14, after shaping the universal shaping tube 14, the air outlet pipe 10 can be shaped synchronously. The air outlet pipe 10 is of a soft structure. In this way, it is convenient to adjust the shape of the air outlet pipe 10. At the same time, the specific structure of the universal shaping tube 14 is prior art and will not be elaborated here. Thus, after welding, the outlet of the air outlet pipe 10 can be oriented towards the weld. In the process of applying pressure to the weld and gradually discharging the gas in the first chamber 6 from the air outlet pipe 10, the discharged gas can blow towards the weld, which can increase the air flow rate at the weld, thereby further refining the grain structure and improving the strength and toughness of the weld metal. And the power source for the gas to discharge from the air outlet pipe 10 is the elastic potential energy of the spring 3. This enables the spring 3 to, on the one hand, promote the gas in the first chamber 6 to discharge from the air outlet pipe 10 to increase the air flow rate at the weld, and on the other hand, gradually reduce the extrusion effect on the weld to avoid the weld being continuously subjected to strong loads.

[0033] As a preferred embodiment, on the basis of the above method, further, the clamping assembly 2 includes a clamping table 15. A fitting groove 16 is formed on the clamping table 15 for the door frame to pass through. Two sets of fixing assemblies 17 are provided on the clamping table 15. One set of the fixing assemblies 17 is located on the side of the fitting groove 16, and the other set of the fixing assemblies 17 is located on the top of the fitting groove 16. Each fitting assembly includes two fixing knobs 18. The fixing knobs 18 are in threaded cooperation with the clamping table 15. The two fixing knobs 18 on the same set of the fixing assemblies 17 are arranged along the length direction of the fitting groove 16. The fixing knobs 18 are used to abut against the door frame so that the fixing assembly 17 and the fitting groove 16 cooperate to clamp the door frame.

[0034] Furthermore, by providing the fixing assembly 17, when fixing the door frame, by rotating the fixing knob 18 on the clamping table 15 to make the fixing knob 18 abut against the door frame, the door frame is fixed relative to the clamping table 15, thereby improving the convenience of fixing the door frame.

[0035] Embodiment 2: On the basis of the technical solution of Embodiment 1, further, as shown in Figures 1-4 the clamping assembly 2 further includes a base 19. The clamping assembly 2 is clamped in the first sliding groove 5 through the base 19. The base 19 is movably matched with the clamping table 15. A first knob 20 is rotatably connected to the clamping table 15. The first knob 20 is in threaded cooperation with the base 19. By rotating the first knob 20 relative to the base 19, the clamping table 15 can move relative to the base 19 along the length direction of the base 19.

[0036] Further, by providing a base 19, the base 19 is movably engaged with the clamping table 15. A clamping groove is provided on the base 19, and a clamping block is provided on the clamping table 15. The clamping block is engaged in the clamping groove and can move relative to the clamping groove along the length direction of the clamping groove. The length direction of the clamping groove is the same as the length direction of the positioning plate 1. At the same time, by providing a first knob 20, when the first knob 20 rotates relative to the base 19, the clamping table 15 moves relative to the base 19 along the length direction of the base 19. In this way, when the clamping assembly 2 abuts against the first baffle 9, after fixing the metal door frame to the clamping assembly 2, when making adjacent metal door frames abut against each other to align their joints, by rotating the first knob 20, the clamping table 15 moves relative to the base 19 along the length direction of the base 19, so as to facilitate forming a gap at the welding joint of adjacent two metal door frames, and at the same time facilitate controlling the width of the gap, so as to facilitate welding through the weld during the welding process, improve the welding firmness, and facilitate applying a thrust force to the door frame subsequently to extrude the weld seam.

[0037] As a preferred embodiment, on the basis of the above method, further, an inflation interface 21 is provided on the positioning plate 1. The inflation device includes an inflation and suction device body 22 and an inflation pipe 23. The inflation interface 21 is used to connect the inflation pipe 23.

[0038] Further, by providing the inflation and suction device body 22 and the inflation pipe 23, one end of the inflation pipe 23 is connected to the inflation and suction device body 22, and the other end is connected to the inflation interface 21, so as to facilitate injecting gas from the inflation and suction device body 22 into the inflation pipe 23 or pumping the gas in the first chamber 6 to the inflation and suction device body 22 through the inflation pipe 23, thereby improving the convenience of adjusting the gas volume in the first chamber 6; specifically, the structure of the inflation and suction device body 22 can be the air pump structure in a dual-purpose air pump for air extraction and inflation with the patent number CN116025575B. Among them, the joint of the inflation pipe 23 is connected to the air outlet on the air pump structure, so as to realize the inflation and suction of the first chamber 6. The specific structure of the inflation and suction device body 22 is the prior art, so it will not be elaborated here.

[0039] As a preferred embodiment, on the basis of the above method, further, a connecting plate 24 is further included. The connecting plate 24 is of an arc structure. One end of the connecting plate 24 is connected to one of the positioning plates 1, and the other end is connected to the other positioning plate 1. The opening direction of the arc structure of the connecting plate 24 faces away from the positioning plate 1.

[0040] Further, by providing the connecting plate 24 and making the connecting plate 24 of an arc structure, while improving the stability of the relative positions of the two positioning plates 1, it also provides more working space for the operator to weld the metal door frame.

[0041] Embodiment 3: This embodiment also provides a magnetic adsorption metal door welding and assembly process. Refer to Figure 6 As shown in the above-mentioned magnetic adsorption metal door welding and assembly device, it includes the following steps: Step 1: Fix the door frame, and use the clamping assembly 2 to clamp the door frame so that the two door frames to be welded are relatively fixed. Step 2: Weld the door frame, and weld the welded part between the two clamped door frames. Step 3: Pressurize the weld seam. Use the inflation device to inflate the first chamber 6 so that the weld seam between the two door frames is squeezed.

[0042] In this application, by using the above process, the weld metal can be densified, its crystal grains can be refined, and at the same time, the gas in its molten pool can be extruded, thereby reducing pores, so as to improve the firmness of the metal door welding. At the same time, there is also step a between step 1 and step 2, reserving a gap. By controlling the rotation of the first knob 20, the clamping table 15 moves relative to the base 19 along the length direction of the base 19, so that a gap is formed at the welding part of two adjacent door frames. After step 3, there is also step b. After pressurizing the weld seam, make the outlet of the air outlet pipe 10 face the weld seam and make the first opening in a conducting state.

[0043] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific embodiments. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A magnetic metal door welding assembly device, characterized in that: It comprises two positioning plates, which are perpendicular to each other and relatively fixed, and the positioning plates are provided with a clamping assembly, a spring and a push block, and the clamping assembly is used to clamp the door frame; A first slide groove is formed on the positioning plate, and the length direction of the first slide groove is in the same direction as the length direction of the positioning plate. The clamping assembly and the push block are both clamped in the first slide groove, and the clamping assembly and the push block can move relative to the first slide groove along the length direction of the first slide groove. One end of the spring is connected to the clamping assembly, and the other end is connected to the push block. A first chamber is formed between the push block and the first slide groove, and the first chamber is equipped with an inflation device, which is used to change the amount of gas in the first chamber to push the push block to move relative to the first slide groove.

2. A magnetic metal door welding assembly device as claimed in claim 1, characterized in that: The end of the positioning plate closer to the other positioning plate is the first end, and the end of the positioning plate away from the other positioning plate is the second end. A first baffle is arranged in the first slide groove, and the first baffle is used to abut against the clamping assembly to limit the movement of the clamping assembly in the direction from the first end to the second end.

3. A magnetic metal door welding assembly device as claimed in claim 2, characterized in that: The positioning plate is also provided with an air outlet pipe, which is connected to the first chamber. The air outlet pipe is provided with a first switch, which is used to control the opening and closing of the air outlet pipe and control the size of the flow cross section when the gas flows through the first switch.

4. A magnetic metal door welding assembly device as claimed in claim 3, characterized in that: The first switch includes a first base and a first cap body, the first base is connected to the air outlet pipe, the first base is provided with a first opening, the second base is provided with a second opening, the first base is rotatably connected to the first cap body, and the first cap body is rotated relative to the first base to adjust the overlapping area of ​​the first opening and the second opening, so as to adjust the size of the flow cross-section when the gas flows through the first switch.

5. A magnetic metal door welding assembly device as claimed in claim 4, characterized in that: The air outlet pipe outer sleeve is provided with a universal shaping pipe, and the universal shaping pipe is a pipe structure that can be bent and can maintain its shape.

6. A magnetic metal door welding assembly device as claimed in claim 5, characterized in that: The clamping assembly includes a clamping platform, a matching groove is formed on the clamping platform, and the matching groove is used for the door frame to pass through. Two groups of fixing components are arranged on the clamping platform, one group of fixing components is located on the side of the matching groove, and the other group of fixing components is located on the top of the matching groove. A single matching component includes two fixing knobs, and the fixing knobs are threadedly matched with the clamping platform. The two fixing knobs on the same group of fixing components are arranged along the length direction of the matching groove. The fixing knobs are used to abut against the door frame so that the fixing component cooperates with the matching groove to clamp the door frame.

7. A magnetic metal door welding assembly device as claimed in claim 6, characterized in that: The clamping assembly also includes a base, and the clamping assembly is clamped in the first slide groove through the base; the base and the clamping platform are movably matched; the clamping platform is rotatably connected to a first knob, and the first knob is threadedly matched with the base, and the clamping platform is moved relative to the base along the length direction of the base by rotating the first knob relative to the base.

8. A magnetic metal door welding assembly device as claimed in claim 7, characterized in that: The positioning plate is provided with an inflation interface, the inflation device comprises an inflator body and an inflation tube, and the inflation interface is used to connect the inflation tube.

9. A magnetic metal door welding assembly device as claimed in claim 8, characterized in that: It also includes a connecting plate, which is an arc-shaped structure. One end of the connecting plate is connected to one of the positioning plates, and the other end is connected to the other positioning plate. The opening direction of the arc-shaped structure of the connecting plate is away from the positioning plate.

10. A magnetic metal door welding assembly process, characterized in that: The magnetic metal door welding assembly device according to any one of claims 1 to 9 comprises the following steps: Step 1: Fix the door frame so that the clamping assembly clamps the door frame so that the two door frames to be welded are relatively fixed; Step 2: Weld the door frame, and weld the welded portion between the two clamped door frames; Step 3: Pressurize the weld. Use an inflator to inflate the first chamber so that the weld between the two door frames is squeezed.

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