Welding device for iron packaging box

Abstract

The invention belongs to the technical field of iron box welding devices, and particularly relates to an iron packaging box welding device which comprises a welding frame, a rotating assembly is movably installed in the welding frame, a welding auxiliary assembly is movably installed on the side edge of the rotating assembly, and the welding auxiliary assembly is located in the welding frame. An upper welding device and a lower welding device are movably mounted on the upper inner wall and the lower inner wall of the welding frame correspondingly, the welding auxiliary assembly comprises an upper welding frame and a lower welding frame which are slidably mounted on the side edge of the rotating assembly, the rotating assembly drives the whole welding auxiliary assembly to rotate, and then the four box body plates are driven to rotate to change the welding position. According to the welding device, the upper welding device and the lower welding device are arranged, so that the original left and right non-welding positions are changed into the upper and lower positions, the upper welding device and the lower welding device are aligned to carry out secondary welding, and the two non-welding positions are welded at the same time, so that the welding process of the iron packaging box body is completed, the production rate of the packaging box is increased, and the production efficiency is improved. And one-step forming can be realized.

Description

Technical Field

[0001] The invention belongs to the field of iron box welding devices, in particular to an iron packaging box welding device. Background Art

[0002] Packaging box welding is a process of connecting metal plates through welding technology to form a solid box structure. Spot welding and laser welding are usually used. In the packaging box welding process, four plate-like objects must first be welded in pairs and then enclosed. When the adjacent positions of the four plate-like objects are welded, the box body of the packaging box is formed. Then the bottom or cover of the box is welded to complete the production welding work of the packaging box.

[0003] A patent document with publication number CN218556125U discloses an iron box welding flipping device, including a main structure frame, a rotating support arm, a fixed plate, a lifting cylinder and a connecting shaft; the rotating support arm is rotatably fixed to the main structure frame through a rotating shaft, the fixed plate is rotatably fixed to the rotating support arm through a slewing support, the iron box is fixed to the fixed plate by screws, the bottom end of the lifting cylinder is hingedly fixed to the main structure frame, and the output end of the lifting cylinder is hingedly fixed to the rotating support arm through a connecting shaft.

[0004] When welding an iron packaging box, it is first necessary to weld the adjacent positions of the four enclosing plates to form the box body of the iron packaging box. However, in traditional technical solutions, it is usually necessary to weld two adjacent plates first. After welding two by two, the two plates are welded to form a V-shaped plate, and then the two V-shaped plates are welded to form the box body. During the entire welding process, because the four plates are loose before forming, it is not convenient to quickly align the welding position with the welding device through the flipping structure, thereby reducing the welding efficiency.

[0005] To this end, the present invention provides a welding device for an iron packaging box. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the iron packaging box welding device described in the present invention comprises a power supply box and a welding frame fixedly installed on the side of the power supply box, a rotating assembly is movably installed inside the welding frame, a welding auxiliary assembly is movably installed on the side of the rotating assembly, the welding auxiliary assembly is inside the welding frame, and an upper welding device and a lower welding device are movably installed on the upper and lower inner walls of the welding frame respectively; The welding auxiliary assembly includes an upper welding frame and a lower welding frame slidably mounted on the side of the rotating assembly, the lower welding frame is located directly below the upper welding frame, a telescopic assembly is installed between the lower welding frame and the upper welding frame, a welding strip groove is opened through the bottom of the lower welding frame, two box panels are placed on the outside of the upper welding frame, and two box panels are placed inside the lower welding frame, the upper welding device is used to weld the two box panels in the upper position, and the lower welding device is used to weld the two box panels in the lower position.

[0008] Preferably, the rotating assembly includes a rotating plate movably mounted in the middle section of the welding frame, and two lifting slots are provided on the side of the rotating plate. The upper welding frame and the lower welding frame are lifted and slid through the two lifting slots. The lifting of the upper welding frame and the lower welding frame is used to adjust the distance between two box panels on the same vertical line.

[0009] Preferably, the upper welding device and the lower welding device are components made of the same structure, and the lower welding device includes a lifting platform movably installed at the bottom of the welding frame, a sliding groove is provided on the lifting platform, and a spot welding head is movably installed above the lifting platform, and the spot welding head is slidably installed on the lifting platform through the sliding groove.

[0010] Preferably, the length of the box body panel affects the distance between the upper welding frame and the lower welding frame. The longer the length of the box body panel is, the longer the extended length of the telescopic assembly is.

[0011] Preferably, the upper welding frame includes an inverted V-shaped plate and blocking plate 2 and blocking plate 1 fixedly installed on both sides of the inverted V-shaped plate, wherein blocking plate 2 is slidably installed on the side of the rotating disk, and blocking plate 1 has two upper positioning components movably installed toward the side of blocking plate 2, and the two upper positioning components are located above the inverted V-shaped plate.

[0012] Preferably, the upper positioning member includes a plurality of electric telescopic rods 2 fixedly mounted on one side of the blocking plate, a push bar being fixedly mounted on one end of the plurality of electric telescopic rods 2, and the push bar being moved by the extension and retraction of the plurality of electric telescopic rods 2.

[0013] Preferably, a fixed bar is fixedly installed on the side of the push bar toward the second blocking plate, and a movable extrusion bar 2 is movably installed inside the fixed bar through a telescopic structure, and the movable extrusion bar 2 moves toward the side of the inverted V-shaped plate through electrical drive.

[0014] Preferably, the lower welding frame is a V-shaped structure, inner walls on both sides of the lower welding frame are fixedly mounted with inner fixing plates, and a lower positioning member is movably mounted on the side of one of the inner fixing plates.

[0015] Preferably, the lower positioning member includes a push plate and a plurality of electric telescopic rods installed on the side of the inner fixing plate, and the push plate is connected to the inner fixing plate through the plurality of electric telescopic rods.

[0016] Preferably, two oblique bars are fixedly installed on the side of the push plate toward the inside of the lower welding frame, and the two oblique bars are arranged in parallel with the oblique sides of the corresponding lower welding frame. A movable extrusion bar 1 is movably installed inside the two oblique bars, and the movable extrusion bar 1 is moved toward the inner wall of the lower welding frame by electric drive.

[0017] The beneficial effects of the present invention are as follows: 1. The iron packaging box welding device described in the present invention welds the top and bottom ends of four box body panels simultaneously through the displaced upper welding device and the lower welding device. At this time, there are still two left and right positions of the box body that have not been welded. The rotating component drives the entire welding auxiliary component to rotate, and then drives the four box body panels to rotate and change the welding position, so that the two unwelded positions originally on the left and right are transformed into upper and lower positions, and are aligned with the upper welding device and the lower welding device. The upper welding device and the lower welding device perform welding for the second time, and weld the two unwelded positions at the same time, that is, the welding process of the iron packaging box body is completed, the production rate of the packaging box is enhanced, and it can be formed in one time. After the box body is formed in this device, the four box body panels will be tighter and not easy to fall off. At this time, the telescopic component is used to adjust and shorten the distance between the upper welding frame and the lower welding frame, thereby increasing the distance between the upper welding frame, the lower welding frame and the formed box body at this time, thereby facilitating the same forming and removing of materials.

[0018] 2. The iron packaging box welding device described in the present invention first places two box panels inside the lower welding frame for positioning, and then places the two box panels on the outside of the inverted V-shaped plate. At this time, the bottom of the upper box panel contacts the box panel directly below, and a V-shaped state is formed under the cooperation of the upper welding frame and the lower welding frame. Subsequently, the two V-shaped states form an enclosed box body, which preliminarily fixes the positions of the two box panels on the upper welding frame. At this time, multiple electric telescopic rods are extended by electric drive to drive the pushing bar to move toward the position of the box panel, and then the box panel is pushed until the side of the box panel contacts the blocking plate 2, thereby positioning the position of the box panel, and then the electric drive is continued to make the movable extrusion bar 2 squeeze toward the box panel inside the fixed bar, thereby positioning the position of the box panel for the second time.

[0019] 3. The iron packaging box welding device described in the present invention has a spacing between the oblique bars and the inner wall of the adjacent lower welding frame that is greater than the thickness of the box panel. When the two box panels are placed inside the lower welding frame, since the weight of the two box panels is the same, the ends of the two box panels are both inside the welding strip groove, which is conducive to the subsequent spot welding head to perform welding. At this time, the electrically driven electric telescopic rod is extended to drive the push plate to move toward the box panel. At this time, the push plate pushes the two box panels to move until the two box panels contact the inner fixed plate, thereby preliminarily fixing the position of the box panels to facilitate subsequent welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is an overall stereogram of the present invention; Figure 2 It is a three-dimensional schematic diagram of the welding frame in the present invention; Figure 3 It is a three-dimensional schematic diagram of the upper welding frame and the lower welding frame in the present invention; Figure 4 It is a three-dimensional schematic diagram of the box plate in the present invention; Figure 5 It is a three-dimensional schematic diagram of the telescopic assembly in the present invention; Figure 6 It is a three-dimensional schematic diagram of the upper welding frame in the present invention; Figure 7 It is a three-dimensional schematic diagram of the lower welding frame in the present invention; Figure 8 It is a three-dimensional schematic diagram of the upper positioning component in the present invention.

[0022] In the figure: 1. power supply box; 2. welding frame; 21. upper welding device; 22. lower welding device; 221. lifting platform; 222. spot welding head; 223. sliding groove; 3. rotating assembly; 31. rotating disk; 32. lifting groove; 4. welding auxiliary assembly; 5. upper welding frame; 51. blocking plate 1; 52. inverted V-shaped plate; 53. blocking plate 2; 54. upper positioning member; 541. electric telescopic rod 2; 542. pushing bar; 543. fixing bar; 544. movable extrusion bar 2; 6. lower welding frame; 61. inner fixing plate; 62. lower positioning member; 621. pushing plate; 622. electric telescopic rod 1; 623. oblique bar; 624. movable extrusion bar 1; 7. telescopic assembly; 8. welding strip groove; 9. box plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0024] like Figure 1-Figure 5 As shown, an iron packaging box welding device according to an embodiment of the present invention comprises a power supply box 1 and a welding frame 2 fixedly mounted on the side of the power supply box 1, a rotating assembly 3 is movably mounted inside the welding frame 2, a welding auxiliary assembly 4 is movably mounted on the side of the rotating assembly 3, the welding auxiliary assembly 4 is located inside the welding frame 2, and an upper welding device 21 and a lower welding device 22 are movably mounted on the upper and lower inner walls of the welding frame 2 respectively; The welding auxiliary component 4 includes an upper welding frame 5 and a lower welding frame 6 which are slidably installed on the side of the rotating component 3. The lower welding frame 6 is located directly below the upper welding frame 5. A telescopic component 7 is installed between the lower welding frame 6 and the upper welding frame 5. A welding strip groove 8 is opened through the bottom of the lower welding frame 6. Two box panels 9 are placed on the outside of the upper welding frame 5, and two box panels 9 are placed on the inside of the lower welding frame 6. The upper welding device 21 is used to weld the two box panels 9 in the upper position, and the lower welding device 22 is used to weld the two box panels 9 in the lower position. The lower welding frame 6 is a V-shaped structure. The upper welding device 21 and the lower welding device 22 are components made of the same structure. The upper welding device 21 includes a spot welding head 222.

[0025] Specifically, when it is necessary to weld four box panels 9 into a closed box, first two box panels 9 are placed inside the lower welding frame 6, and then the two box panels 9 are placed above the upper welding frame 5. The upper welding frame 5 is an inverted V-shaped structure, and the lower welding frame 6 is a V-shaped structure. Therefore, after the placement is completed, every two box panels 9 initially form a V-shaped state, and the positions of the four box panels 9 are initially stabilized by the positioning structure, but no welding is performed. The spacing between the upper welding frame 5 and the lower welding frame 6 is shortened by lifting and lowering the telescopic component 7, that is, the spacing between the two box panels 9 above the upper welding frame 5 and the two box panels 9 inside the lower welding frame 6 is shortened, so that the upper two box panels 9 and the lower two box panels 9 are closed together to form a box state. It can be observed whether the box is offset at this time, and a test is performed before welding. After the test is completed, the four The top and bottom ends of the box body panels 9 are welded at the same time. At this time, there are still two positions on the left and right of the box body that have not been welded. The entire welding auxiliary component 4 is driven to rotate by the rotating component 3, and then the four box body panels 9 are driven to rotate and change the welding position, so that the two unwelded positions originally on the left and right are changed to the upper and lower positions, and are aligned with the upper welding device 21 and the lower welding device 22. The upper welding device 21 and the lower welding device 22 are welded for the second time, and the two unwelded positions are welded at the same time, that is, the welding process of the iron packaging box body is completed, the production rate of the packaging box is enhanced, and it can be formed at one time. After the box body is formed in this device, the four box body panels 9 will be tighter and not easy to fall off. At this time, the telescopic component 7 is used to adjust and shorten the distance between the upper welding frame 5 and the lower welding frame 6, thereby increasing the distance between the upper welding frame 5, the lower welding frame 6 and the formed box body at this time, thereby facilitating the same forming and stripping.

[0026] like Figure 2 As shown, the rotating assembly 3 includes a rotating disk 31 movably installed in the middle section of the welding frame 2. Two lifting grooves 32 are provided on the side of the rotating disk 31. The upper welding frame 5 and the lower welding frame 6 are lifted and slid through the two lifting grooves 32. The lifting of the upper welding frame 5 and the lower welding frame 6 is used to adjust the distance between two box panels 9 on the same vertical line.

[0027] The upper welding device 21 and the lower welding device 22 are components made of the same structure. The lower welding device 22 includes a lifting platform 221 movably installed at the bottom of the welding frame 2. A sliding groove 223 is provided on the lifting platform 221. A spot welding head 222 is also movably installed above the lifting platform 221. The spot welding head 222 adopts spot welding and laser welding. The spot welding head 222 is slidably installed on the lifting platform 221 through the sliding groove 223. The length of the box plate 9 affects the spacing between the upper welding frame 5 and the lower welding frame 6. The longer the length of the box plate 9, the longer the extension length of the telescopic component 7.

[0028] Specifically, in order to adapt to the welding height between different box panels 9, the welding height of the spot welding head 222 can be adjusted by a liftable lifting platform 221, and the spot welding head 222 cooperates with the sliding groove 223 through an electrically driven structure, so that the spot welding head 222 slides above the lifting platform 221 to adjust the welding horizontal position of the spot welding head 222. When the length of the box panel 9 is longer, the distance between the upper welding frame 5 and the lower welding frame 6 will be larger, so the welding height of the spot welding head 222 will be lower, and at this time, the welding position of the two lower box panels 9 will be in the welding strip groove 8, and the head of the spot welding head 222 rises to the inside of the welding strip groove 8 to weld the two box panels 9.

[0029] like Figure 6 and Figure 8 As shown, the upper welding frame 5 includes an inverted V-shaped plate 52 and a blocking plate 2 53 and a blocking plate 1 51 fixedly mounted on both sides of the inverted V-shaped plate 52. The blocking plate 2 53 is slidably mounted on the side of the rotating disk 31. The blocking plate 1 51 has two upper positioning components 54 movably mounted toward the side of the blocking plate 2 53. The two upper positioning components 54 are located above the inverted V-shaped plate 52.

[0030] The upper positioning member 54 includes a plurality of electric telescopic rods 541 fixedly mounted on the side of the blocking plate 51 , and a push bar 542 is fixedly mounted on one end of the plurality of electric telescopic rods 541 , and the push bar 542 moves by the extension and retraction of the plurality of electric telescopic rods 541 .

[0031] A fixed bar 543 is fixedly installed on the side of the push bar 542 facing the blocking plate 2 53, and a movable extrusion bar 2 544 is movably installed inside the fixed bar 543 through a telescopic structure. The movable extrusion bar 2 544 moves toward the side of the inverted V-shaped plate 52 through electrical drive.

[0032] Specifically, first, the two box panels 9 are placed inside the lower welding frame 6 for positioning, and then the two box panels 9 are placed on the outside of the inverted V-shaped plate 52. At this time, the bottom of the upper box panel 9 is in contact with the box panel 9 directly below, and a V-shaped state is formed under the cooperation of the upper welding frame 5 and the lower welding frame 6. Then the two V states form a closed box, which preliminarily fixes the positions of the two box panels 9 on the upper welding frame 5. At this time, the multiple electric telescopic rods 541 are extended by electric drive to drive the pushing bar 542 to move toward the position of the box panel 9, and then the box panel 9 is pushed until the side of the box panel 9 contacts the blocking plate 53, thereby positioning the position of the box panel 9, and then the electric drive is continued to make the movable extrusion bar 544 squeeze toward the box panel 9 inside the fixed bar 543, and the position of the box panel 9 is positioned for the second time. In this way, the two upper box panels 9 will not be offset during welding, and it is beneficial to the subsequent flipping of the four box panels 9.

[0033] like Figure 6-Figure 7 As shown, the lower welding frame 6 is a V-shaped structure, and two inner fixing plates 61 are fixedly installed on the inner walls on both sides of the lower welding frame 6. A lower positioning member 62 is movably installed on the side of one of the inner fixing plates 61. The lower positioning member 62 includes a pushing plate 621 installed on the side of the inner fixing plate 61 and a plurality of electric telescopic rods 622. The pushing plate 621 is connected to the inner fixing plate 61 through the plurality of electric telescopic rods 622.

[0034] Specifically, the distance between the oblique strip 623 and the inner wall of the adjacent lower welding frame 6 is greater than the thickness of the box panel 9. When the two box panels 9 are placed inside the lower welding frame 6, since the two box panels 9 have the same weight, the ends of the two box panels 9 are both inside the welding strip groove 8, which is conducive to the subsequent spot welding head 222 for welding. At this time, the electrically driven telescopic rod 622 is extended to drive the push plate 621 to move toward the box panel 9. At this time, the push plate 621 pushes the two box panels 9 to move until the two box panels 9 are in contact with the inner fixed plate 61, thereby preliminarily fixing the position of the box panels 9 to facilitate subsequent welding work. Embodiment 2

[0035] like Figure 7 As shown, compared with Example 1, another implementation of the present invention is: two oblique bars 623 are fixedly installed on the side of the push plate 621 toward the inside of the lower welding frame 6, and the two oblique bars 623 are arranged in parallel with the oblique sides of the corresponding lower welding frame 6, and a movable extrusion bar 624 is movably installed inside the two oblique bars 623, and the movable extrusion bar 624 is moved toward the inner wall of the lower welding frame 6 by electric drive.

[0036] Specifically, after the two box panels 9 are initially fixed inside the lower welding frame 6, the movable extrusion bar 624 can be driven by an electric drive to move toward the box panel 9 to squeeze and clamp the box panel 9, thereby fixing the position of the box panel 9 inside the lower welding frame 6 for a second time. After the box panels 9 inside the lower welding frame 6 and the box panels 9 on the upper welding frame 5 are fixed, the telescopic component 7 can be used to adjust and shorten the distance between the upper welding frame 5 and the lower welding frame 6. That is, at this time, the two box panels 9 that are fixed and on the same vertical line are transformed from the original contact caused by gravity to extrusion contact. The tighter contact is beneficial to the welding at this position when the subsequent welding auxiliary component 4 is flipped and rotated.

[0037] Working principle: when it is necessary to weld four box panels 9 into a closed box, first place two box panels 9 inside the lower welding frame 6, and then place the two box panels 9 above the upper welding frame 5. The upper welding frame 5 is an inverted V-shaped structure, and the lower welding frame 6 is a V-shaped structure. Therefore, after the placement is completed, every two box panels 9 initially form a V-shaped state, and the positions of the four box panels 9 are initially stabilized by the positioning structure, but no welding is performed. The distance between the upper welding frame 5 and the lower welding frame 6 is shortened by lifting and lowering the telescopic component 7, that is, the distance between the two box panels 9 above the upper welding frame 5 and the two box panels 9 inside the lower welding frame 6 is shortened, so that the upper two box panels 9 and the lower two box panels 9 are closed together to form a box state. It can be observed whether the box is offset at this time, and detection is performed before welding. After the detection is completed, the upper welding device 21 and the lower welding device 22 are displaced to align the four The top and bottom ends of the box body panels 9 are welded at the same time. At this time, there are still two positions on the left and right of the box body that have not been welded. The entire welding auxiliary component 4 is driven to rotate by the rotating component 3, and then the four box body panels 9 are driven to rotate and change the welding position, so that the two unwelded positions originally on the left and right are changed to the upper and lower positions, and are aligned with the upper welding device 21 and the lower welding device 22. The upper welding device 21 and the lower welding device 22 are welded for the second time, and the two unwelded positions are welded at the same time, that is, the welding process of the iron packaging box body is completed, the production rate of the packaging box is enhanced, and it can be formed at one time. After the box body is formed in this device, the four box body panels 9 will be tighter and not easy to fall off. At this time, the telescopic component 7 is used to adjust and shorten the distance between the upper welding frame 5 and the lower welding frame 6, thereby increasing the distance between the upper welding frame 5, the lower welding frame 6 and the formed box body at this time, thereby facilitating the same forming and stripping.

[0038] The distance between the oblique strip 623 and the inner wall of the adjacent lower welding frame 6 is greater than the thickness of the box plate 9. When the two box plates 9 are placed inside the lower welding frame 6, because the weight of the two box plates 9 is the same, the ends of the two box plates 9 are both inside the welding strip groove 8, which is conducive to the subsequent spot welding head 222 for welding. At this time, the electric telescopic rod 622 is electrically driven to extend and drive the push plate 621 to move toward the box plate 9. At this time, the push plate 621 pushes the two box plates 9 to move until the two box plates 9 are in contact with the inner fixing plate 61, thereby preliminarily fixing the position of the box plates 9, which is convenient for subsequent welding work. When the two box plates After the block 9 is initially fixed inside the lower welding frame 6, the movable extrusion bar 624 can be driven by an electric drive to move toward the box plate 9 to extrude and clamp the box plate 9, thereby fixing the position of the box plate 9 inside the lower welding frame 6 for a second time. After the box plate 9 inside the lower welding frame 6 and the box plate 9 on the upper welding frame 5 are both fixed, the telescopic component 7 can be used to adjust and shorten the distance between the upper welding frame 5 and the lower welding frame 6, that is, the two box plates 9 that are fixed and on the same vertical line are transformed from the original contact caused by gravity to extrusion contact, and the closer contact is beneficial to the welding at this position when the subsequent welding auxiliary component 4 is flipped and rotated.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A welding device for an iron packaging box, comprising a power supply box (1) and a welding frame (2) fixedly mounted on the side of the power supply box (1), characterized in that: A rotating assembly (3) is movably mounted inside the welding frame (2); a welding auxiliary assembly (4) is movably mounted on the side of the rotating assembly (3); the welding auxiliary assembly (4) is located inside the welding frame (2); and an upper welding device (21) and a lower welding device (22) are movably mounted on the upper and lower inner walls of the welding frame (2); The welding auxiliary component (4) comprises an upper welding frame (5) and a lower welding frame (6) which are slidably mounted on the side of the rotating component (3); the lower welding frame (6) is located directly below the upper welding frame (5); a telescopic component (7) is mounted between the lower welding frame (6) and the upper welding frame (5); a welding strip groove (8) is provided through the bottom of the lower welding frame (6); two box panels (9) are placed outside the upper welding frame (5); two box panels (9) are placed inside the lower welding frame (6); the upper welding device (21) is used to weld the two box panels (9) at the upper position; the lower welding device (22) is used to weld the two box panels (9) at the lower position; the lower welding frame (6) is a V-shaped structure; the upper welding device (21) and the lower welding device (22) both comprise a head for welding; the upper welding device (21) and the lower welding device (22) are components made of the same structure; the upper welding device (21) comprises a spot welding head (222).

2. The iron packaging box welding device according to claim 1 is characterized in that: The rotating assembly (3) comprises a rotating disk (31) movably mounted at a middle position inside the welding frame (2), and two lifting grooves (32) are provided on the side of the rotating disk (31). The upper welding frame (5) and the lower welding frame (6) are lifted and slid through the two lifting grooves (32). The lifting of the upper welding frame (5) and the lower welding frame (6) is used to adjust the distance between two box panels (9) on the same vertical line.

3. The iron packaging box welding device according to claim 1 is characterized in that: The lower welding device (22) further comprises a lifting platform (221) movably mounted on the bottom of the welding frame (2); a sliding groove (223) is provided on the lifting platform (221); and the spot welding head (222) is slidably mounted on the lifting platform (221) via the sliding groove (223).

4. The iron packaging box welding device according to claim 1, characterized in that: The length of the box panel (9) affects the distance between the upper welding frame (5) and the lower welding frame (6); the longer the length of the box panel (9), the longer the extended length of the telescopic component (7).

5. The iron packaging box welding device according to claim 1, characterized in that: The upper welding frame (5) comprises an inverted V-shaped plate (52) and a blocking plate 2 (53) and a blocking plate 1 (51) fixedly mounted on both sides of the inverted V-shaped plate (52); the blocking plate 2 (53) is slidably mounted on the side of the rotating disk (31); the blocking plate 1 (51) is movably mounted with two upper positioning components (54) toward the side of the blocking plate 2 (53); the two upper positioning components (54) are located above the inverted V-shaped plate (52).

6. The iron packaging box welding device according to claim 5, characterized in that: The upper positioning member (54) comprises a plurality of electric telescopic rods (541) fixedly mounted on the side of the blocking plate (51), a push bar (542) being fixedly mounted at one end of the plurality of electric telescopic rods (541), and the push bar (542) is moved by the extension and retraction of the plurality of electric telescopic rods (541).

7. The iron packaging box welding device according to claim 6, characterized in that: The pushing bar (542) is fixedly mounted with a fixing bar (543) on the side facing the second blocking plate (53), and a movable extrusion bar (544) is movably mounted inside the fixing bar (543) via a telescopic structure, and the movable extrusion bar (544) is moved toward the side of the inverted V-shaped plate (52) via an electric drive.

8. The iron packaging box welding device according to claim 1, characterized in that: Internal fixing plates (61) are fixedly mounted on the inner walls of both sides of the lower welding frame (6), and a lower positioning component (62) is movably mounted on the side edge of one of the internal fixing plates (61).

9. The iron packaging box welding device according to claim 8, characterized in that: The lower positioning member (62) comprises a push plate (621) and a plurality of electric telescopic rods (622) mounted on the side of the inner fixing plate (61); the push plate (621) is connected to the inner fixing plate (61) via the plurality of electric telescopic rods (622).

10. The iron packaging box welding device according to claim 9, characterized in that: The push plate (621) is fixedly provided with two oblique bars (623) on the side facing the inside of the lower welding frame (6); the two oblique bars (623) are arranged in parallel with the oblique sides of the corresponding lower welding frame (6); a movable extrusion bar (624) is movably provided inside the two oblique bars (623); the movable extrusion bar (624) is moved toward the inner wall of the lower welding frame (6) by electric drive.

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