Metal plate welding device for constructional engineering

Abstract

The invention relates to the technical field of metal plate welding, in particular to a metal plate welding device for constructional engineering, which comprises a cabinet body, a welding mechanism is arranged at the upper end in the cabinet body, an adjusting mechanism is arranged at the position, close to the lower end, in the cabinet body, and a motor is fixedly connected to the position, corresponding to the adjusting mechanism, of the front end surface of the cabinet body. The motor is in transmission connection with the adjusting mechanism; the welding mechanism comprises a support fixedly connected to the center of the front side of the lower end face of the cabinet body, a first threaded rod is rotationally connected between the support and the inner wall of the cabinet body, the outer surface of the first threaded rod is in spiral transmission connection with a fixing plate, and guide rails are symmetrically fixed to the two sides of the fixing plate. The adjusting mechanism is designed to be matched with the welding mechanism, an aluminum alloy sheet can be supported and fixed after the aluminum alloy sheet is turned over by a specified angle through the adjusting mechanism, the welding angle of the aluminum alloy sheet is preset, the requirement of a user for different welding angles of the aluminum alloy sheet is met, and the welding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate welding, and in particular to a metal plate welding device for construction engineering. Background Art

[0002] During the construction process, construction projects require a large amount of metal steel, mainly steel bars and metal plates. Metal plates often need to be welded before use.

[0003] The aluminum alloy formwork system is an efficient building formwork system, especially suitable for concrete pouring construction of high-rise and super high-rise buildings. The finished aluminum alloy sheet needs to be welded during processing so that the edges of the two aluminum alloy sheets are butted together. Due to the large heat capacity and high thermal conductivity of aluminum alloy, the aluminum alloy sheet cannot be fixed by hand during welding, and must be fixed with the help of fixtures;

[0004] The welding method in the prior art using auxiliary tooling and clamps cannot meet the user's requirements for welding aluminum alloy thin plates at different angles. During the welding process, for finished welded thin plates at different angles, it is necessary to manually adjust the tooling and clamps repeatedly so that the angle after fixing the aluminum alloy thin plates meets the welding requirements. This process is not only time-consuming and labor-intensive, but also reduces product production efficiency.

[0005] Therefore, a metal sheet welding device for construction engineering is proposed. Summary of the invention

[0006] The object of the present invention is to provide a metal plate welding device for construction engineering to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: A metal sheet welding device for construction engineering, comprising a cabinet, a welding mechanism is arranged at the upper end of the cabinet, an adjustment mechanism is arranged near the lower end of the cabinet, a motor is fixedly connected to the front end surface of the cabinet at a position corresponding to the adjustment mechanism, and the motor is in driving connection with the adjustment mechanism;

[0008] The welding mechanism comprises a bracket fixedly connected to the center of the front side of the lower end face of the cabinet, a threaded rod 1 is rotatably connected between the bracket and the inner wall of the cabinet, a fixing plate is spirally connected to the outer surface of the threaded rod 1, guide rails are symmetrically fixed on both sides of the fixing plate, a slide rail is fixedly connected to the inner upper corner of the cabinet, one end of the guide rail away from the fixing plate is slidably connected to the slide rail, an electric push rod is fixedly connected to the lower end face of the fixing plate, and a welding gun is detachably connected and fixed to the lower end of the electric push rod;

[0009] The adjustment mechanism includes a left plate and a right plate rotatably connected to the inside of the cabinet, the two plates have the same size and are made of ceramic material. When the left plate and the right plate are flipped toward each other at a specified angle under the transmission connection of the motor, it is the finished welding angle of the aluminum alloy thin plate.

[0010] Preferably, a roller is symmetrically fixed to the lower end surface of the left plate near the position of the right plate, the roller penetrates the inner wall of the cabinet and is rotatably connected, a gear three is fixed to the outside of the roller, a rotating shaft penetrating the inner wall of the cabinet is symmetrically fixed to the lower end surface of the right plate near the left plate, a gear one is fixed to the outside of the rotating shaft, a gear two is provided on the lower side of gear one and gear three, gear three and gear two are meshingly connected for transmission, gear three is meshingly connected for transmission with gear one, gear one is not in contact with gear two, the motor output shaft extends to the inside of the cabinet and is fixedly connected with threaded rod two, threaded rod two penetrates gear two and extends to the rear end face of the cabinet, threaded rod two is rotatably connected with gear two, an air cooling mechanism is provided at the rear end of the threaded rod two, and a preheating mechanism is spirally connected to the outer surface of the threaded rod two.

[0011] Preferably, the preheating mechanism includes a guide plate located directly below the second threaded rod, the upper end surface of the guide plate is provided with a slide groove, the interior of the slide groove is slidably connected with a slider, the upper end surface of the slider is fixedly connected with a fixed block, the upper end surface of the fixed block is fixedly connected with a high-frequency heater, and the fixed block is spirally connected to the second threaded rod.

[0012] Preferably, separation limit assemblies are provided at both ends of the outer surface of the second threaded rod near the second gear, and the transmission and separation of the second threaded rod and the second gear are achieved through the separation limit assemblies.

[0013] Preferably, the separation limit assembly includes an electromagnet of an annular structure which is sleeved on the outside of the second threaded rod near the position of the second gear, the inner side of the electromagnet is fixedly connected to a guide block, and a guide groove is provided on the outer surface of the second threaded rod at a position corresponding to the guide block, and the guide block is located in the guide groove and is slidably connected and cannot be detached.

[0014] Preferably, the separation limit assembly includes a movable groove opened on the inner wall of the cabinet at a position corresponding to gear 2, a movably connected pin rod inside the movable groove, one end of the pin rod is fixed with spring 2 on the inner wall of the movable groove, the other end of the pin rod is a hemispherical structure, and a plurality of pin holes are opened in a ring shape on the surface adjacent to gear 2 and the pin rod, the number of the pin rods corresponds to the pin holes, and one end of the pin rod is inserted into the pin hole to limit the rotation angle of gear 2.

[0015] Preferably, a side plate is fixedly connected to the outside of the threaded rod 2 near the electromagnet, a buffer plate is provided on the rear side of the side plate, the buffer plate is movably connected to the threaded rod 2, a spring 1 is fixed between the side plate and the buffer plate, and the outer surface of the threaded rod 2 is designed with threads with the area between the two buffer plates as the surface.

[0016] Preferably, the rear end of the threaded rod 2 is fixedly connected to the transmission wheel 1, and the rear end of the threaded rod 1 is sleeved and fixedly connected to the transmission wheel 2. The transmission wheel 1 and the transmission wheel 2 correspond in position and are connected via a belt drive.

[0017] Preferably, the air cooling mechanism includes a reciprocating screw fixedly connected to the rear end of the threaded rod two, the rear end outer surface of the threaded rod two is located at the rear side of the transmission wheel one and is sleeved with a plate three, the rear end of the outer surface of the reciprocating screw is spirally connected to the plate two, an airbag is glued between the plate three and the plate two, and the airbag is an annular folding airbag and is sleeved on the outside of the reciprocating screw.

[0018] Preferably, plate one is provided on the lower end surfaces of plate three and plate two, wherein plate three is fixed to plate one, plate two is slidably connected to plate one, one end of plate one is fixed to the cabinet, an air pipe is provided inside plate three, one end of the air pipe is connected to the airbag, and the other end passes through the cabinet and extends into the slide groove to the fixed block, the upper end of the fixed block is distributed in a U-shaped structure, a nozzle is embedded in the middle, the other end of the air pipe is connected to the nozzle, and a re-suction hole with a built-in one-way valve is opened on the outside of the airbag.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention is designed to cooperate with the welding mechanism by designing an adjustment mechanism, so that the aluminum alloy thin plate can be supported and fixed after being flipped to a specified angle by the adjustment mechanism, so as to realize the presetting of the welding angle of the aluminum alloy thin plate, meet the user's requirements for different welding angles of the aluminum alloy thin plate, and improve the welding efficiency;

[0021] 2. The present invention can perform high-frequency preheating on the welding point of two aluminum alloy thin plates before welding by designing a preheating mechanism, thereby reducing welding stress, reducing the probability of cracks and pores at the welding point, and further improving the welding effect;

[0022] 3. The present invention designs an air cooling mechanism, which can cooperate with the preheating mechanism to fully preheat the welding before welding and remove dust from the welding area. After welding, the welding area can also be cooled by the air cooling mechanism to reduce the natural cooling time, so as to facilitate the next processing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is the overall structural view of the present invention;

[0025] Figure 2 It is a left view of the overall structure of the present invention;

[0026] Figure 3 It is a front view of the overall structure of the present invention;

[0027] Figure 4 It is a structural view of the adjustment mechanism of the present invention;

[0028] Figure 5 It is a structural view of the preheating mechanism of the present invention;

[0029] Figure 6 It is a cross-sectional view of the lower half of the cabinet of the present invention;

[0030] Figure 7 It is a cross-sectional view of the upper half of the cabinet of the present invention;

[0031] Figure 8 For the present invention Figure 6 The enlarged schematic diagram at A in the middle;

[0032] Fig. 9 For the present invention Figure 6 Enlarged schematic diagram of point B in the middle.

[0033] Description of reference numerals:

[0034] 1. Cabinet; 11. Motor; 3. Belt

[0035] 2. Adjustment mechanism; 21. Right plate; 22. Left plate; 23. Gear 1; 24. Gear 2; 25. Gear 3;

[0036] 4. Air cooling mechanism; 41. Air pipe; 42. Plate 1; 43. Plate 2; 44. Reciprocating screw; 45. Air bag; 46. Plate 3; 47. Transmission wheel 1;

[0037] 5. Welding mechanism; 51. Bracket; 52. Electric push rod; 53. Welding gun; 54. Fixing plate; 55. Guide rail; 56. Slide rail; 57. Transmission wheel 2; 58. Threaded rod 1;

[0038] 6. Preheating mechanism; 61. Fixed block; 62. High frequency heater; 63. Nozzle; 64. Guide plate; 65. Slide; 66. Slider;

[0039] 7. Threaded rod 2; 71. Guide block; 72. Guide groove; 73. Buffer plate; 74. Electromagnet; 75. Side plate; 76. Spring 1; 77. Pin rod; 78. Spring 2. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figures 1 to 9 , the present invention provides a technical solution:

[0042] A metal sheet welding device for construction engineering, comprising a cabinet 1, a welding mechanism 5 is arranged at the upper end of the cabinet 1, an adjustment mechanism 2 is arranged near the lower end of the cabinet 1, a motor 11 is fixedly connected to the front end surface of the cabinet 1 at a position corresponding to the adjustment mechanism 2, and the motor 11 is in transmission connection with the adjustment mechanism 2;

[0043] The welding mechanism 5 includes a bracket 51 fixedly connected to the center of the front side of the lower end face of the cabinet 1, a threaded rod 58 is rotatably connected between the bracket 51 and the inner wall of the cabinet 1, the outer surface of the threaded rod 58 is spirally connected to a fixed plate 54, guide rails 55 are symmetrically fixed on both sides of the fixed plate 54, a slide rail 56 is fixedly connected to the upper corner of the interior of the cabinet 1, and one end of the guide rail 55 away from the fixed plate 54 is slidably connected to the slide rail 56, and an electric push rod 52 is fixedly connected to the lower end face of the fixed plate 54, and a welding gun 53 is detachably connected and fixed to the lower end of the electric push rod 52;

[0044] The adjustment mechanism 2 includes a left plate 22 and a right plate 21 rotatably connected to the inside of the cabinet 1. The two plates are of the same size and are made of ceramic material. When the left plate 22 and the right plate 21 are flipped toward each other at a specified angle under the transmission connection of the motor 11, the finished welding angle of the aluminum alloy thin plate is obtained.

[0045] By adopting the above technical scheme, the present invention designs the adjustment mechanism 2 to cooperate with the welding mechanism 5, so as to support and fix the aluminum alloy thin plate after flipping it to a specified angle through the adjustment mechanism 2, thereby realizing the presetting of the welding angle of the aluminum alloy thin plate, meeting the user's requirements for different welding angles of the aluminum alloy thin plate, and improving the welding efficiency.

[0046] As an embodiment of the present invention, Figure 1 and Figure 3 as well as Figure 4 As shown, a roller is fixed symmetrically front and back at a position near the right plate 21 on the lower end surface of the left plate 22, the roller penetrates the inner wall of the cabinet 1 and is rotatably connected, a gear three 25 is fixed outside the roller, a rotating shaft penetrating the inner wall of the cabinet 1 is fixed symmetrically front and back at a position near the left plate 22 on the lower end surface of the right plate 21, a gear one 23 is fixed outside the rotating shaft, a gear two 24 is arranged on the lower side of the gear one 23 and the gear three 25, the gear three 25 and the gear two 24 are meshed and transmitted, the gear three 25 is meshed and transmitted with the gear one 23, the gear one 23 is meshed and transmitted with the gear one 23, and the gear one 23 is meshed with the gear two 24. The gear 24 is not in contact, the output shaft of the motor 11 extends to the inside of the cabinet 1 and is fixedly connected to the threaded rod 27, the threaded rod 27 passes through the gear 24 and extends to the rear end face of the cabinet 1, the threaded rod 27 is rotatably connected to the gear 24, the rear end of the threaded rod 27 is provided with an air cooling mechanism 4, the outer surface of the threaded rod 27 is spirally connected to the preheating mechanism 6, and the outer surfaces of the threaded rod 27 are provided with separation limit assemblies at both ends near the gear 24, and the transmission and separation of the threaded rod 27 and the gear 24 are realized by the separation limit assemblies.

[0047] By adopting the above technical solution, when working, the user places two aluminum alloy thin plates on the left plate 22 and the right plate 21, aligns the gap between the welding contact and the adjacent parts of the left plate 22 and the right plate 21, and then the user controls the motor 11 to rotate through the external intelligent control device, and the motor 11 rotates to carry the threaded rod 2 7 to rotate. At this time, by starting the separation limit assembly to operate, the threaded rod 2 7 and the gear 2 24 are in a fixed state, and then when the motor 11 drives the threaded rod 2 7 to rotate, the gear 2 24 is driven to rotate. Since the gear 2 24 is meshed with the gear 3 25, and the gear 3 25 is meshed with the gear 1 23, When gear two 24 drives gear three 25 to rotate, gear one 23 rotates in the opposite direction. At this time, the left plate 22 and the right plate 21 are fixed by the rollers and the rotating shaft, and both turn inward toward each other. By controlling the motor 11 to rotate at a specified angle, the left plate 22 and the right plate 21 are controlled to fold toward each other at a specified angle. During the folding process of the left plate 22 and the right plate 21, the aluminum alloy sheet placed thereon will also fold at a specified angle, and the welding point will slowly slide downward to align during the folding process, and then the welding mechanism 5 is started to operate, and the electric push rod 52 drives the welding gun 53 to descend to contact the welding point to perform welding work.

[0048] As an embodiment of the present invention, Figure 5 and Figure 6As shown, the preheating mechanism 6 includes a guide plate 64 located directly below the threaded rod 27, the upper end surface of the guide plate 64 is provided with a slide groove 65, the interior of the slide groove 65 is slidably connected with a slider 66, the upper end surface of the slider 66 is fixedly connected with a fixed block 61, the upper end surface of the fixed block 61 is fixedly connected with a high-frequency heater 62, and the fixed block 61 is spirally connected to the threaded rod 27.

[0049] By adopting the above technical solution and based on the above embodiment, when the motor 11 drives the threaded rod 2 7 to rotate and then drives the adjustment mechanism 2 to operate, the threaded rod 2 7 rotates, and the fixed block 61 connected to the threaded rod 2 7 in a spiral transmission is guided by the sliding connection between the slider 66 and the slide groove 65 on the guide plate 64, and moves slowly from the front side of the cabinet 1 to the rear side. During this process, the high-frequency heater 62 at the upper end of the fixed block 61 is located just outside the welding point of the aluminum alloy sheet. At this time, the high-frequency heater 62 is conductive and operates to preheat the welding point at high temperature. Since the left plate 22 and the right plate 21 are made of ceramic material, the left plate 22 and the right plate 21 will not be heated.

[0050] As an embodiment of the present invention, Figure 6 and Figure 8 As shown, the separation limit assembly includes an electromagnet 74 of an annular structure which is sleeved on the outside of the threaded rod 27 near the position of the gear 24. The inner side of the electromagnet 74 is fixedly connected to a guide block 71. A guide groove 72 is provided on the outer surface of the threaded rod 27 at a position corresponding to the guide block 71. The guide block 71 is located in the guide groove 72 and is slidably connected and cannot be detached.

[0051] By adopting the above technical solution, based on the above embodiment, the threaded rod 2 7 is driven to rotate to first drive the adjustment mechanism 2 to operate. When the adjustment mechanism 2 adjusts the left plate 22 and the right plate 21 to a predetermined angle, the folding drive of the left plate 22 and the right plate 21 needs to be stopped, and the preheating mechanism 6 continues to operate. Therefore, by designing the electromagnet 74, when it is necessary to drive the adjustment mechanism 2 to operate, the electromagnet 74 conducts electricity and generates magnetic force. At this time, the electromagnet 74 magnetically attracts the gear 24. Under the sliding connection between the guide groove 72 and the guide block 71, the electromagnet 74 is on the threaded rod. The guide block 71 and the guide groove 72 are only the axial displacement movements of the electromagnet 74 on the threaded rod 27. At this time, the threaded rod 27 drives the gear 24 to rotate under the action of the electromagnet 74 magnetically attracting the gear 24 to fix it, and drives the left plate 22 and the right plate 21 to fold at the same time through the gear 1 23 and the gear 3 25. When the angles of the left plate 22 and the right plate 21 are folded to the specified angle, the electromagnet 74 is powered off and loses the magnetic attraction with the gear 2 24, so that the driving force of the adjustment mechanism 2 and the threaded rod 27 can be separated.

[0052] As an embodiment of the present invention, Figure 6 and Figure 8 As shown, the separation limit assembly includes a movable groove opened on the inner wall of the cabinet 1 at a position corresponding to the gear 24, and a movably connected pin rod 77 inside the movable groove. One end of the pin rod 77 is fixed to the inner wall of the movable groove with a spring 28, and the other end of the pin rod 77 is a hemispherical structure. A plurality of pin holes are annularly opened on the adjacent surfaces of the gear 24 and the pin rod 77. The number of the pin rod 77 corresponds to the pin holes, and one end of the pin rod 77 is inserted into the pin hole to limit the rotation angle of the gear 2 24.

[0053] By adopting the above technical scheme and based on the above embodiment, when the electromagnet 74 is powered off and loses the magnetic attraction with the gear 2 24, the driving force of the adjusting mechanism 2 and the threaded rod 2 7 can be separated, and the rotation angle of the gear 2 24 needs to be limited. Therefore, in the process of driving the gear 2 24 to rotate, the pin rod 77 is continuously displaced inside the movable groove under the action of the spring 2 78, and its hemispherical end is squeezed into the pin hole on the side of the gear 2 24. When the gear 2 24 stops rotating, the hemispherical end of the pin rod 77 is inserted into the pin hole to limit the rotation angle of the gear 2 24, thereby fixing the folding angle of the left plate 22 and the right plate 21.

[0054] As an embodiment of the present invention, Figure 6 and Figure 8 As shown, a side plate 75 is fixedly connected to the outside of the threaded rod 7 near the electromagnet 74, a buffer plate 73 is arranged on the rear side of the side plate 75, the buffer plate 73 is movably connected to the threaded rod 7, a spring 76 is fixed between the side plate 75 and the buffer plate 73, and the outer surface of the threaded rod 7 is designed with threads in the area between the two buffer plates 73.

[0055] By adopting the above technical solution and based on the above embodiment, the threaded rod 2 7 drives the fixed block 61 connected thereto to move, so that the fixed block 61 moves from the front side inside the cabinet 1 to the rear side inside the cabinet 1. When the fixed block 61 is displaced to the rear side inside the cabinet 1, if the threaded rod 2 7 continues to rotate, the fixed block 61 may collide with the inside of the cabinet 1. Therefore, in order to avoid this problem, a threaded area surface is designed in the two buffer plates 73. When the fixed block 61 is displaced to contact the buffer plate 73, the buffer plate 73 is squeezed on the threaded rod. Internal displacement, compression spring 1 76 buffers the collision force of fixed block 61 until fixed block 61 squeezes buffer plate 73 to move, and fixed block 61 is disengaged from the threaded area surface and is in a disengaged state from threaded rod 2 7, then fixed block 61 is no longer displaced, and when it is necessary to spirally transmit the connection again to restore the fixed block 61 to the front position inside the cabinet 1, only the motor 11 needs to rotate in the opposite direction, at this time, under the elastic extrusion of spring 1 76, buffer plate 73 squeezes fixed block 61, so that fixed block 61 is spirally transmitted and connected to the threaded area surface again, and then restored to its original position.

[0056] As an embodiment of the present invention, Figure 2 and Figure 6 As shown, the rear end of the threaded rod 2 7 is fixedly connected to the transmission wheel 1 47, and the rear end of the threaded rod 1 58 is sleeved and fixedly connected to the transmission wheel 2 57. The transmission wheel 1 47 and the transmission wheel 2 57 correspond in position and are connected via a belt 3.

[0057] By adopting the above technical solution, when the motor 11 drives the adjusting mechanism 2 and the preheating mechanism 6 to operate, the threaded rod 1 58 is also driven to move through the transmission connection between the transmission wheel 1 47 and the transmission wheel 2 57 and the belt 3. At this time, the fixed plate 54 connected to the threaded rod 1 58 in a spiral transmission is also displaced from the front side of the cabinet 1 to the rear side of the cabinet 1 under the sliding connection and guidance of the guide rail 55 and the slide rail 56. This process is run simultaneously with the preheating mechanism 6. In order to meet the preheating mechanism 6 first preheating and then welding method, it can be achieved by the thread density at the spiral transmission between the fixed block 61 and the threaded rod 2 7 in the preheating mechanism 6.

[0058] As an embodiment of the present invention, Figure 6 and Fig. 9 As shown, the air cooling mechanism 4 includes a reciprocating screw 44 fixedly connected to the rear end of the threaded rod 2 7, and a plate 3 46 is sleeved on the rear end outer surface of the threaded rod 2 7 at a position located behind the transmission wheel 1 47, and a plate 2 43 is spirally connected to the rear end of the outer surface of the reciprocating screw 44, and an air bag 45 is glued between the plate 3 46 and the plate 2 43, and the air bag 45 is an annular folding air bag 45 and is sleeved on the outside of the reciprocating screw 44, and the lower end surfaces of the plate 3 46 and the plate 2 43 are provided with a plate 1 42, wherein The plate three 46 is fixed to the plate one 42, the plate two 43 is slidably connected to the plate one 42, one end of the plate one 42 is fixed to the cabinet 1, an air pipe 41 is arranged in the plate three 46, one end of the air pipe 41 is connected to the air bag 45, and the other end passes through the cabinet 1 and extends into the slide groove 65 to the fixed block 61, the upper end of the fixed block 61 is distributed in a U-shaped structure, and a nozzle 63 is embedded in the middle, the other end of the air pipe 41 is connected to the nozzle 63, and a re-suction hole with a built-in one-way valve is opened on the outside of the air bag 45.

[0059] By adopting the above technical solution, when the motor 11 drives the threaded rod 2 7 to rotate, and further drives the preheating component to operate, the reciprocating screw 44 fixed to the rear end of the threaded rod 2 7 is also driven to rotate. At this time, the plate 1 42 connected to the reciprocating screw 44 in a spiral transmission is displaced toward the plate 3 46 under the action of the sliding connection with the plate 1 42, and then cooperates with the plate 3 46 to compress the airbag 45 between the two. The gas compressed by the airbag 45 is transported through the air pipe 41 to the inner nozzle 63 of the fixed block 61 to blow high pressure on the welding position. It is worth noting that It is worth noting that in order to meet the change of the displacement distance of the air pipe 41 with the fixed block 61, the air pipe 41 is designed to be a spiral structure. Then, when the plate 42 is reset under the action of the reciprocating screw 44, the air bag 45 draws outside air through the re-absorption hole and the internal one-way valve to replenish the internal gas. The present invention designs an air cooling mechanism 4, which can cooperate with the preheating mechanism 6 to fully preheat it before welding and remove dust from the welding point. After welding, the air cooling mechanism 4 can also be used to cool the welding point and reduce the natural cooling time to facilitate the next processing operation.

[0060] Working principle: When working, the user places two aluminum alloy sheets on the left plate 22 and the right plate 21, aligns the gap between the welding contact and the adjacent parts of the left plate 22 and the right plate 21, and then controls the motor 11 to rotate through the external intelligent control device. The motor 11 rotates and carries the threaded rod 2 7 to rotate. At this time, the separation limit assembly is started, and the threaded rod 2 7 and the gear 2 24 are fixed. Then, when the motor 11 drives the threaded rod 2 7 to rotate, the gear 2 24 is driven to rotate. Since the gear 2 24 is meshed with the gear 3 25, and the gear 3 25 is meshed with the gear 1 23, the gear 2 24 is meshed with the gear 3 25. When the gear 24 drives the gear 3 25 to rotate, the gear 1 23 rotates in the opposite direction. At this time, the left plate 22 and the right plate 21 are fixed by the roller and the shaft, and the two turn inwards towards each other. By controlling the motor 11 to rotate at a specified angle, the left plate 22 and the right plate 21 are controlled to turn toward each other at a specified angle. During the turning process of the left plate 22 and the right plate 21, the aluminum alloy sheet placed thereon will also turn at a specified angle, and the welding point will slowly slide downward and align during the turning process. Then the welding mechanism 5 is started to operate, and the electric push rod 52 drives the welding gun 53 to descend to contact the welding point to perform welding work;

[0061] When the motor 11 drives the threaded rod 27 to rotate and then drives the adjustment mechanism 2 to operate, the threaded rod 27 rotates, and the fixed block 61 connected to the threaded rod 27 in a spiral transmission is guided by the sliding block 66 and the slide groove 65 on the guide plate 64, and slowly moves from the front side of the cabinet 1 to the rear side. During this process, the high-frequency heater 62 at the upper end of the fixed block 61 is located just outside the welding part of the aluminum alloy sheet. At this time, the high-frequency heater 62 is conducting and preheating the welding part at high temperature. Since the left plate 22 and the right plate 21 are made of ceramic material, the left plate 22 and the right plate 21 will not be heated.

[0062] Driving the threaded rod 27 to rotate first drives the adjustment mechanism 2 to operate. When the adjustment mechanism 2 adjusts the left plate 22 and the right plate 21 to a predetermined angle, the folding drive of the left plate 22 and the right plate 21 needs to be stopped, while the preheating mechanism 6 continues to operate. Therefore, by designing the electromagnet 74, when it is necessary to drive the adjustment mechanism 2 to operate, the electromagnet 74 conducts electricity and generates magnetic force. At this time, the electromagnet 74 magnetically attracts the gear 24. Under the sliding connection between the guide groove 72 and the guide block 71, the electromagnet 74 moves on the threaded rod 27 to the gear 24. The guide block 71 and the guide groove 72 are only the axial displacement movement of the electromagnet 74 on the threaded rod 2 7. At this time, the threaded rod 2 7 drives the gear 2 24 to rotate under the action of the electromagnet 74 magnetically attracting the gear 2 24, and drives the left plate 22 and the right plate 21 to fold at the same time through the gear 1 23 and the gear 3 25. When the angle of the left plate 22 and the right plate 21 is folded to a specified angle, the electromagnet 74 is powered off and loses the magnetic attraction with the gear 2 24, so that the driving force of the adjustment mechanism 2 and the threaded rod 2 7 can be separated;

[0063] When the electromagnet 74 is powered off and loses its magnetic attraction with the gear 2 24, the driving force of the adjusting mechanism 2 and the threaded rod 2 7 can be separated. Therefore, the rotation angle of the gear 2 24 needs to be limited. Therefore, during the rotation of the driving gear 2 24, the pin rod 77 is continuously displaced in the movable groove under the action of the spring 2 78, and its hemispherical end is squeezed and extended into the pin hole on one side of the gear 2 24. When the gear 2 24 stops rotating, the hemispherical end of the pin rod 77 is inserted into the pin hole to limit the rotation angle of the gear 2 24, thereby fixing the folding angle of the left plate 22 and the right plate 21.

[0064] The threaded rod 2 7 drives the fixed block 61 connected thereto to move, so that the fixed block 61 moves from the front side inside the cabinet 1 to the rear side inside the cabinet 1. When the fixed block 61 is displaced to the rear side inside the cabinet 1, if the threaded rod 2 7 continues to rotate, it is possible that the fixed block 61 collides with the inside of the cabinet 1. Therefore, in order to avoid this problem, a threaded area surface is designed in the two buffer plates 73. When the fixed block 61 displaces and contacts the buffer plate 73, the buffer plate 73 is squeezed and displaced inside the threaded rod. The compression spring 1 76 buffers the collision force of the fixed block 61 until the fixed block 61 squeezes the buffer plate 73 to displace, and the fixed block 61 is disengaged from the threaded area surface and is in a disengaged state from the threaded rod 2 7. Then, the fixed block 61 is no longer displaced. When it is necessary to spirally drive and connect again to restore the fixed block 61 to the front side position inside the cabinet 1, it is only necessary for the motor 11 to rotate in the opposite direction. At this time, under the elastic extrusion of the spring 1 76, the buffer plate 73 squeezes the fixed block 61, so that the fixed block 61 is spirally driven and connected to the threaded area surface again, and then restored to its original position.

[0065] When the motor 11 drives the adjusting mechanism 2 and the preheating mechanism 6 to operate, the threaded rod 1 58 is also driven to move by the transmission connection between the transmission wheel 1 47 and the transmission wheel 2 57 and the belt 3. At this time, the fixed plate 54 connected to the threaded rod 1 58 in a spiral transmission is also displaced from the front side of the cabinet 1 to the rear side of the cabinet 1 under the sliding connection and guidance of the guide rail 55 and the slide rail 56. This process is operated simultaneously with the preheating mechanism 6. In order to meet the preheating mechanism 6 first preheating and then welding, the thread density at the spiral transmission of the fixed block 61 and the threaded rod 2 7 in the preheating mechanism 6 can be achieved;

[0066] When the motor 11 drives the threaded rod 2 7 to rotate, and further drives the preheating component to operate, it also drives the reciprocating screw 44 fixed to the rear end of the threaded rod 2 7 to rotate. At this time, the plate 1 42 connected to the reciprocating screw 44 in a spiral transmission is displaced toward the plate 3 46 under the action of the sliding connection with the plate 1 42, and then cooperates with the plate 3 46 to compress the air bag 45 between the two. The gas compressed by the air bag 45 is transported through the air pipe 41 to the inner nozzle 63 of the fixed block 61 to blow high pressure on the welding position. It is worth noting that in order to meet the change of the displacement distance of the air pipe 41 with the fixed block 61, the air pipe 41 is designed as a spiral structure. Then, when the plate 1 42 is reset under the action of the reciprocating screw 44, the air bag 45 sucks the outside air through the re-absorption hole and the internal one-way valve to supplement the internal gas. The present invention designs the air cooling mechanism 4, which can cooperate with the preheating mechanism 6 to fully preheat it before welding and remove dust from the welding position. After welding, the welding position can also be cooled by the air cooling mechanism 4 to reduce the natural cooling time for the next processing operation.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal sheet welding device for construction engineering, comprising a cabinet (1), characterized in that: A welding mechanism (5) is provided at the upper end of the cabinet (1), an adjustment mechanism (2) is provided at a position near the lower end of the cabinet (1), a motor (11) is fixedly connected to a position corresponding to the front end surface of the cabinet (1) and the adjustment mechanism (2), and the motor (11) is drivingly connected to the adjustment mechanism (2); The welding mechanism (5) comprises a bracket (51) fixedly connected to the center of the front side of the lower end face of the cabinet (1); a threaded rod (58) is rotatably connected between the bracket (51) and the inner wall of the cabinet (1); the outer surface of the threaded rod (58) is spirally connected to a fixed plate (54); guide rails (55) are symmetrically fixed on both sides of the fixed plate (54); a slide rail (56) is fixedly connected at the inner upper corner of the cabinet (1); one end of the guide rail (55) away from the fixed plate (54) is slidably connected to the slide rail (56); the lower end face of the fixed plate (54) is fixedly connected to an electric push rod (52); and the lower end of the electric push rod (52) is detachably connected to a welding gun (53); The adjustment mechanism (2) comprises a left plate (22) and a right plate (21) which are rotatably connected to the inside of the cabinet (1), the two plates having the same size and being made of ceramic material, wherein when the left plate (22) and the right plate (21) are flipped towards each other at a specified angle under the driving connection of the motor (11), the finished angle of the aluminum alloy thin plate welding is obtained.

2. A metal sheet welding device for construction engineering according to claim 1, characterized in that: A roller is fixed symmetrically front and back to the lower end surface of the left plate (22) near the position of the right plate (21), the roller penetrates the inner wall of the cabinet (1) and is rotatably connected, a gear three (25) is fixed outside the roller, a rotating shaft penetrating the inner wall of the cabinet (1) is fixed symmetrically front and back to the lower end surface of the right plate (21) near the position of the left plate (22), a gear one (23) is fixed outside the rotating shaft, a gear two (24) is arranged on the lower side of the gear one (23) and the gear three (25), the gear three (25) and the gear two (24) are meshed and transmission-connected, the Gear 3 (25) is meshed with gear 1 (23) for transmission connection, said gear 1 (23) is not in contact with gear 2 (24), the output shaft of the motor (11) extends into the interior of the cabinet (1) and is fixedly connected with threaded rod 2 (7), said threaded rod 2 (7) passes through gear 2 (24) and extends to the rear end surface of the cabinet (1), said threaded rod 2 (7) is rotationally connected with gear 2 (24), the rear end of said threaded rod 2 (7) is provided with an air cooling mechanism (4), and the outer surface of said threaded rod 2 (7) is spirally connected with a preheating mechanism (6).

3. A metal sheet welding device for construction engineering according to claim 2, characterized in that: The preheating mechanism (6) comprises a guide plate (64) located directly below the second threaded rod (7); a slide groove (65) is provided on the upper end surface of the guide plate (64); a slider (66) is slidably connected inside the slide groove (65); a fixed block (61) is fixedly connected to the upper end surface of the slider (66); a high-frequency heater (62) is fixedly connected to the upper end surface of the fixed block (61); and the fixed block (61) is connected to the second threaded rod (7) by a spiral transmission.

4. A metal sheet welding device for construction engineering according to claim 3, characterized in that: Separation and limiting components are provided at both ends of the outer surface of the second threaded rod (7) near the second gear (24), and the transmission and separation of the second threaded rod (7) and the second gear (24) are realized through the separation and limiting components.

5. A metal sheet welding device for construction engineering according to claim 4, characterized in that: The separation limit assembly comprises an annular electromagnet (74) sleeved on the outside of the second threaded rod (7) near the position of the second gear (24); the inner side of the electromagnet (74) is fixedly connected with a guide block (71); the outer surface of the second threaded rod (7) and the guide block (71) are provided with a guide groove (72) at a position corresponding to the guide block (71); the guide block (71) is located inside the guide groove (72) and is slidably connected and cannot be separated.

6. A metal sheet welding device for construction engineering according to claim 5, characterized in that: The separation limit assembly comprises a movable groove provided on the inner wall of the cabinet (1) at a position corresponding to the gear 2 (24), a pin rod (77) movably connected inside the movable groove, a spring 2 (78) being fixed to one end of the pin rod (77) and the inner wall of the movable groove, the other end of the pin rod (77) being a hemispherical structure, a plurality of pin holes being provided in an annular shape on the adjacent surfaces of the gear 2 (24) and the pin rod (77), the number of the pin holes corresponding to the number of the pin holes, and one end of the pin rod (77) being inserted into the pin hole to limit the rotation angle of the gear 2 (24).

7. A metal sheet welding device for construction engineering according to claim 6, characterized in that: A side plate (75) is fixedly connected to the outside of the second threaded rod (7) near the electromagnet (74), a buffer plate (73) is arranged on the rear side of the side plate (75), the buffer plate (73) is movably connected to the second threaded rod (7), a spring (76) is fixed between the side plate (75) and the buffer plate (73), and a thread is designed on the outer surface of the second threaded rod (7) with the area between the two buffer plates (73) as the surface.

8. The metal sheet welding device for construction engineering according to claim 1, characterized in that: The rear end of the threaded rod 2 (7) is fixedly connected to the transmission wheel 1 (47), and the rear end of the threaded rod 1 (58) is sleeved and fixedly connected to the transmission wheel 2 (57). The transmission wheel 1 (47) and the transmission wheel 2 (57) are located correspondingly, and the two are connected by a belt (3).

9. A metal sheet welding device for construction engineering according to claim 2, characterized in that: The air cooling mechanism (4) comprises a reciprocating screw (44) fixedly connected to the rear end of the threaded rod (7); the rear end outer surface of the threaded rod (7) is sleeved with a plate (46) at a position located behind the transmission wheel (47); the rear end of the outer surface of the reciprocating screw (44) is spirally connected to the plate (43); an air bag (45) is glued between the plate (46) and the plate (43); the air bag (45) is an annular folding air bag (45) and is sleeved on the outside of the reciprocating screw (44).

10. A metal sheet welding device for construction engineering according to claim 9, characterized in that: The lower end surfaces of the plate three (46) and the plate two (43) are provided with a plate one (42), wherein the plate three (46) is fixed to the plate one (42), the plate two (43) is slidably connected to the plate one (42), one end of the plate one (42) is fixed to the cabinet (1), an air pipe (41) is provided inside the plate three (46), one end of the air pipe (41) is connected to the air bag (45), and the other end passes through the cabinet (1) and extends into the slide groove (65) to the fixed block (61), the upper end of the fixed block (61) is distributed in a U-shaped structure, and a nozzle (63) is embedded in the middle, the other end of the air pipe (41) is connected to the nozzle (63), and a re-inhalation hole with a built-in one-way valve is opened on the outside of the air bag (45).

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