Welding device for steel structure installation

Abstract

The present invention discloses a welding device for steel structure installation, which relates to the technical field of steel structure welding; it comprises a welding handpiece, on which is mounted a swinging suction piece, which is used for suction during overhead welding; a cover buckle suction piece is mounted on the swinging suction piece; the cover buckle suction piece is an expandable structure; the cover buckle suction piece is used to fit the inner side of the weld; an in-place test piece is mounted on the cover buckle suction piece; the invention solves the problem that the current welding device for steel structure installation is not convenient for expanding to surround the weld, easily destroys the molten pool, and is not convenient for prompting staff to reserve cables; the use of a stop protection piece can ensure that when the staff uses the structure, they avoid forgetting the reserved length of the cable on the welding gun body, resulting in the problem of insufficient cable length during subsequent welding work, and the self-inspection work is completed before the welding work is carried out.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welding, in particular to a welding device for installing a steel structure. Background Art

[0002] In the actual installation and construction work of steel structures, it is often necessary to connect and weld two sections of steel box girders. Usually, workers are required to hold a welding gun and perform welding work around the box girder. In the actual welding process, it is necessary to ensure the firmness of the welding and ensure that the molten pool fully fills the weld. The current welding equipment for steel structure installation is not convenient for automatic overhead welding and filling. Under the action of gravity, the weld molten pool is prone to dripping downward, affecting the welding quality. Because the weld width is limited, the traditional suction method is not convenient for expanding and surrounding the weld. At the same time, hand shaking and other conditions can easily damage the molten pool. The overhead welding filling effect of the molten pool is poor, and it is also not convenient for cable reservation. During the welding process, insufficient cable length will directly cause welding interruption, local over-welding, and affect welding continuity. At the same time, it is not convenient to avoid manual forgetting to check the cable length, because insufficient cable length and failure to stop welding in time will directly affect the weld quality.

[0003] To this end, we propose a welding device for steel structure installation. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for steel structure installation to solve the problems raised in the above background technology that the current welding device for steel structure installation is not convenient for expanding and surrounding the weld, easily destroys the molten pool, and is not convenient for prompting workers to reserve cables.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a welding device for steel structure installation, comprising a welding handpiece, a swinging suction piece installed on the welding handpiece, and the swinging suction piece is used for overhead welding suction; a cover buckle suction piece is installed on the swinging suction piece; the cover buckle suction piece is an expandable structure; the cover buckle suction piece is used to fit the inner side of the weld; an in-place test piece is installed on the cover buckle suction piece; the in-place test piece is used to detect that the cover buckle suction piece fits the inner side of the steel box girder; a traction control piece is installed on the welding handpiece; a margin pre-stored piece is installed on the traction control piece; the margin pre-stored piece is used to ensure continuous welding; a stop protection piece is installed on the swinging suction piece; the stop protection piece is used to ensure that the cable margin meets the welding path length requirement; the welding handpiece comprises: a welding gun body and an indicator light, the welding gun body consists of a handle, a cable and a welding gun head; an indicator light is fixedly installed on the welding gun head of the welding gun body.

[0006] Preferably, the welding handpiece further comprises: a rotating mounting arm, and the rotating mounting arm is fixedly mounted on the welding gun head of the welding gun body.

[0007] Preferably, the swinging suction member includes: a swing arm, a torsion spring shaft and a suction pipe, the torsion spring shaft is fixedly mounted on the swing arm; the swing arm is located on the inner side of the rotating mounting arm; the torsion spring shaft is rotatably mounted on the rotating mounting arm; a torsion spring is sleeved on the torsion spring shaft; both ends of the torsion spring on the torsion spring shaft are connected between the torsion spring shaft and the rotating mounting arm; the suction pipe is fixedly mounted on the swing arm; and the end of the suction pipe passes through the swing arm.

[0008] Preferably, the cover buckle suction part includes: a cover buckle swing plate, an expansion spring, a lower corrugated sheet and a front film. There are two cover buckle swing plates, and the two cover buckle swing plates are rotatably installed on the swing arms respectively; an expansion spring is fixedly installed between the inner sides of the two cover buckle swing plates, and the expansion spring is a V-shaped structure; a lower corrugated sheet is fixedly installed at the bottom of the two cover buckle swing plates, and the lower corrugated sheet is an elastic structure; a front film is fixedly installed at the front end of the two cover buckle swing plates, and the front film is an elastic structure; the end of the suction tube is located between the two cover buckle swing plates; and sponge strips are respectively provided on the two cover buckle swing plates.

[0009] Preferably, the in-place test piece includes: an in-place paddle and a contact piece, the in-place paddle is fixedly mounted on the inner side of the cover buckle swing plate; the end of the in-place paddle protrudes from the cover buckle swing plate; a contact piece is fixedly mounted on the inner side of the cover buckle swing plate; the in-place paddle is attached to the contact piece; the in-place paddle, contact piece and indicator light are connected in series with a power supply.

[0010] Preferably, the traction control component includes: a traction fixed tube, a power connection block, an extrusion spring piece, an anti-slip electromagnet and a positioning column, the traction fixed tube is fixedly installed on the welding gun body; the traction fixed tube is sleeved on the outside of the cable on the welding gun body; the power connection block is fixedly installed inside the traction fixed tube; the extrusion spring piece is fixedly installed inside the traction fixed tube; the extrusion spring piece elastically fits the power connection block; the anti-slip electromagnet is fixedly installed on the traction fixed tube; the positioning column is slidably inserted on the traction fixed tube; the anti-slip electromagnet is used to magnetically attract the positioning column; a spring is provided between the anti-slip electromagnet and the positioning column.

[0011] Preferably, the surplus pre-stored component includes: a pre-stored pulling ring, a movable electric coil, a connecting wire, a limit column and a limit ball, the pre-stored pulling ring is sleeved on the outside of the cable on the welding gun body; the pre-stored pulling ring is sleeved with a movable electric coil; the pre-stored pulling ring is fixedly installed with a connecting wire; the connecting wire passes through the traction fixing tube; the limit column is fixedly installed on the connecting wire, and the limit column squeezes and fits the extrusion spring piece; the end of the connecting wire is fixedly installed with a limit ball; the positioning column is used to stop the limit column; the front end of the limit column is a slope structure.

[0012] Preferably, the surplus pre-stored component also includes: a pulling tube, a fixed electric coil and a tension spring, the pulling tube is slidably sleeved on the pre-stored pulling ring; the pulling tube is fixedly sleeved on the outside of the cable on the welding gun body; a fixed electric coil is fixedly installed on the pulling tube, and the fixed electric coil is aligned with the movable electric coil; the fixed electric coil, the movable electric coil and the anti-slip electromagnet are connected in series with a power supply; a tension spring is sleeved on the outside of the cable on the welding gun body, and the two ends of the tension spring are respectively connected between the pulling tube and the pre-stored pulling ring.

[0013] Preferably, the stop protection member includes: a stop plate and a stop spring piece, and two stop plates are provided, and the two stop plates are rotatably mounted on the swing arm respectively; a stop spring piece is fixedly mounted between the two stop plates, and the stop spring piece is located inside the swing arm.

[0014] Preferably, the stop protection component also includes: a limiting electromagnet, two limiting electromagnets are fixedly mounted on the swing arm, and the two limiting electromagnets are respectively used for magnetically attracting the stop plate; the limiting electromagnet, the power connection block and the extrusion spring are connected in series with a power supply.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention adopts a surplus pre-stored part to automatically replenish the cable when the worker is performing welding work and the cable length is insufficient, which can avoid the welding work being directly stopped due to limited cable length. However, if the worker holding the welding gun body does not stop welding in the first time, it is easy to cause local continuous welding or even burn-through. The present structure can automatically detect and release the pre-stored length, which can ensure the welding continuity of the structure.

[0017] The use of a stop protection part can ensure that when the staff uses this structure, they will not forget to reserve the reserved length of the cable on the welding gun body, resulting in the problem of insufficient cable length during subsequent welding work. The self-inspection work is completed before the welding work, which ensures that the cable can be reserved before multiple welding work. The stop plate can automatically open when the staff forgets to reserve the cable length. At this time, the staff cannot insert the swing arm into the weld to complete the welding work, which prevents the staff from illegally operating the reserved cable or forgetting the reserved cable.

[0018] The cover buckle suction piece can be used in conjunction with the swing suction piece to suction the inside of the weld in real time during overhead welding. This can avoid the situation where the molten pool falls under the action of gravity during overhead welding, which may cause the weld to be not fully filled. At the same time, the suction area of the foldable cover buckle suction piece is larger than the weld width, ensuring the comprehensiveness of the weld suction filling. The in-place test piece can be used to test the fit between the cover buckle swing plate and the inside of the box beam in real time, ensuring the accurate distance between the cover buckle swing plate and the inside of the box beam, ensuring the stability of the negative pressure suction force, ensuring the uniformity of the molten pool forming, and improving the flatness of the molten pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a welding device for steel structure installation according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the internal structure of a welding device for steel structure installation according to the present invention;

[0021] Figure 3 This is a schematic diagram of the bottom structure of a welding device for steel structure installation according to the present invention;

[0022] Figure 4 This is a schematic structural diagram of the welding handpiece of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the swing suction piece of the present invention;

[0024] Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle B region;

[0025] Figure 7 For the present invention Figure 6 A magnified view of the structure of the middle C region;

[0026] Figure 8 For the present invention Figure 2 A magnified view of the structure of the middle D region;

[0027] Figure 9 This is a schematic diagram of the structure of the surplus pre-storage component of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the surplus pre-storage component of the present invention;

[0029] Figure 11 This is a schematic structural diagram of the stop protection member of the present invention.

[0030] Figure: 1. Welding handpiece; 101. Welding gun body; 102. Indicator light; 103. Rotating mounting arm; 2. Swinging suction piece; 201. Swinging arm; 2011. Torsion spring shaft; 202. Suction tube; 3. Cover buckle suction piece; 301. Cover buckle swing plate; 302. Expanding spring; 303. Lower corrugated sheet; 304. Front film; 4. In-place test piece; 401. In-position paddle; 402. Contact piece; 5. Traction control component; 501. Traction fixing cylinder; 502. Power connection block; 503. Extrusion spring; 504. Anti-slip electromagnet; 505. Positioning column; 6. Remaining pre-stored component; 601. Pre-stored pulling ring; 6011. Moving power connection coil; 602. Connecting wire; 603. Limiting column; 604. Limiting ball; 605. Pulling cylinder; 606. Fixed power connection coil; 607. Tension spring; 7. Stop protection component; 701. Stop plate; 702. Stop spring; 703. Limiting electromagnet. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1 to 11 As shown:

[0033] The present invention provides a technical solution: a welding device for steel structure installation, comprising a welding handpiece 1, a swinging suction piece 2 is installed on the welding handpiece 1, the swinging suction piece 2 is used for overhead welding suction; a cover buckle suction piece 3 is installed on the swinging suction piece 2; the cover buckle suction piece 3 is an expandable structure; the cover buckle suction piece 3 is used to fit the inner side of the weld; an in-place test piece 4 is installed on the cover buckle suction piece 3; the in-place test piece 4 is used to detect whether the cover buckle suction piece 3 fits the inner side of the steel box girder; a traction control piece 5 is installed on the welding handpiece 1; a margin pre-storage piece 6 is installed on the traction control piece 5; the margin pre-storage piece 6 is used to ensure continuous welding; a stop protection piece 7 is installed on the swinging suction piece 2; the stop protection piece 7 is used to ensure that the cable margin meets the welding path length requirement; the welding handpiece 1 comprises: a welding gun body 101 and an indicator light 102, the welding gun body 101 consists of a handle, a cable and a welding gun head; the indicator light 102 is fixedly installed on the welding gun head of the welding gun body 101.

[0034] The welding hand piece 1 further comprises: a rotating mounting arm 103, on the welding gun head of the welding gun body 101, a rotating mounting arm 103 is fixedly mounted; the swinging suction piece 2 comprises: a swinging arm 201, a torsion spring shaft 2011 and a suction pipe 202, the swinging arm 201 is fixedly mounted with a torsion spring shaft 2011; the swinging arm 201 is located inside the rotating mounting arm 103; the torsion spring shaft 2011 is rotatably mounted on the rotating mounting arm 103; a torsion spring is sleeved on the torsion spring shaft 2011; both ends of the torsion spring on the torsion spring shaft 2011 are connected between the torsion spring shaft 2011 and the rotating mounting arm 103; the suction pipe 202 is fixedly mounted on the swinging arm 201; The end of the straw 202 passes through the swing arm 201; the cover buckle suction part 3 includes: a cover buckle swing plate 301, an expansion spring piece 302, a lower corrugated sheet 303 and a front film 304. There are two cover buckle swing plates 301, and the two cover buckle swing plates 301 are rotatably mounted on the swing arm 201 respectively; an expansion spring piece 302 is fixedly mounted between the inner sides of the two cover buckle swing plates 301, and the expansion spring piece 302 is a V-shaped structure; the lower corrugated sheet 303 is fixedly mounted on the bottom of the two cover buckle swing plates 301, and the lower corrugated sheet 303 is an elastic structure; the front film 304 is fixedly mounted on the front end of the two cover buckle swing plates 301, and the front film 304 is an elastic structure. Structure; the end of the suction pipe 202 is located between the two cover buckle swing plates 301; sponge strips are respectively provided on the two cover buckle swing plates 301, and the cover buckle suction piece 3 can cooperate with the swing suction piece 2 to suction the inside of the weld in real time during overhead welding, which can avoid the molten pool falling under the action of gravity during overhead welding, which can easily cause the weld to be not fully filled. The cover buckle suction piece 3 used in this structure can be directly buckled on the inside of the weld for suction, and the suction area is larger than the width of the weld to ensure comprehensive suction and filling of the weld. The cover buckle suction piece 3 can be folded to ensure smooth insertion into the inside of the box beam weld, and can also be folded for recycling, and the structure is more reasonable. It can avoid the difficulty of applying the traditional negative pressure suction filling weld method in closed box girder welding work with limited weld width. This structure is simple to operate and has a large weld suction area. At the same time, the folding method does not affect the passage through the weld and removal from the weld. The cover buckle swing plate 301 is squeezed by the expansion spring 302, and the two cover buckle swing plates 301 expand outward. At this time, the lower corrugated plate 303 and the front film 304 are supported to ensure that the weld width is covered. Under the squeezing of the torsion spring on the torsion spring shaft 2011, the swing arm 201 can rotate, driving the sponge strip on the cover buckle swing plate 301 to fit the inner side of the box girder weld, ensuring the molten pool forming and filling effect during overhead welding.

[0035] Among them, the in-place test piece 4 includes: an in-place paddle 401 and a contact piece 402, the in-place paddle 401 is fixedly installed on the inner side of the cover buckle swing plate 301; the end of the in-place paddle 401 protrudes from the cover buckle swing plate 301; the contact piece 402 is fixedly installed on the inner side of the cover buckle swing plate 301; the in-place paddle 401 is attached to the contact piece 402; the in-place paddle 401, the contact piece 402 and the indicator light 102 are connected in series with the power supply, and the in-place test piece 4 can be used to test the fit between the cover buckle swing plate 301 and the inner side of the box beam in real time, ensuring the accurate distance between the cover buckle swing plate 301 and the inner side of the box beam, avoiding the inner side of the box beam When the cover buckle swing plate 301 is moved by the staff, it is difficult to distinguish the distance between the cover buckle swing plate 301 and the inner side of the box beam. This structure can further ensure the stability of the negative pressure suction force, ensure the uniformity of the molten pool forming, and avoid factors such as hand shaking that cause frequent changes in the distance between the cover buckle swing plate 301 and the inner side of the box beam. At this time, the suction force will be deflated, affecting the size of the suction force, and then the negative pressure suction pressure of the molten pool will change, and the molten pool will become uneven, affecting the welding strength. Once the cover buckle swing plate 301 no longer fits the box beam and a large gap is generated, the indicator light 102 can be connected to the power and light up to prompt.

[0036] Among them, the traction control part 5 includes: a traction fixed cylinder 501, a power block 502, an extrusion spring 503, an anti-slip electromagnet 504 and a positioning column 505. The traction fixed cylinder 501 is fixedly installed on the welding gun body 101; the traction fixed cylinder 501 is sleeved on the outside of the cable on the welding gun body 101; the power block 502 is fixedly installed inside the traction fixed cylinder 501; the extrusion spring 503 is fixedly installed inside the traction fixed cylinder 501; the extrusion spring 503 elastically fits the power block 502; the anti-slip electromagnet 504 is fixedly installed on the traction fixed cylinder 501; the positioning column 505 is slidably inserted on the traction fixed cylinder 501; the anti-slip electromagnet 504 is used to magnetically attract the positioning column 505; the anti-slip electromagnet 504 and the positioning A spring is provided between the columns 505; the surplus pre-stored part 6 includes: a pre-stored pulling ring 601, a mobile electric coil 6011, a connecting wire 602, a limiting column 603 and a limiting ball 604, the pre-stored pulling ring 601 is sleeved on the outside of the cable on the welding gun body 101; the pre-stored pulling ring 601 is sleeved with a mobile electric coil 6011; the pre-stored pulling ring 601 is fixedly installed with a connecting wire 602; the connecting wire 602 passes through the traction fixing tube 501; the limiting column 603 is fixedly installed on the connecting wire 602, and the limiting column 603 squeezes and fits the extrusion spring 503; the limiting ball 604 is fixedly installed on the end of the connecting wire 602; the positioning column 505 is used to stop the limiting column 603; the front end of the limiting column 603 is a slope structure; as shown in the attached Figure 1As shown, the distance between the pre-stored pulling ring 601 and the traction fixed cylinder 501 is smaller than the length of the cable on the welding gun body 101, ensuring that the cable has a reserved retractable length; the surplus pre-stored component 6 also includes: a pulling cylinder 605, a fixed electric coil 606 and a tension spring 607, the pulling cylinder 605 is slidably sleeved on the pre-stored pulling ring 601; the pulling cylinder 605 is fixedly sleeved on the outside of the cable on the welding gun body 101; a fixed electric coil 606 is fixedly installed on the pulling cylinder 605, and the fixed electric coil 606 is aligned with the movable electric coil 6011; the fixed electric coil 606, the movable electric coil 6011 and the anti-slip electromagnet 504 are connected in series with the power supply; the cable outside the welding gun body 101 is sleeved with a tension spring 607, and the two ends of the tension spring 607 are respectively connected between the pulling cylinder 605 and the pre-stored pulling ring 601; the use of the surplus pre-stored component 6 can be used when the cable length is insufficient when the worker is performing welding work Automatic replenishment can avoid the welding work from being stopped directly due to limited cable length. However, if the worker holding the welding gun body 101 does not stop welding in the first time, it is easy to cause local continuous welding or even burn-through. This structure can automatically detect and release the pre-stored length, which can ensure the welding continuity of this structure and prevent welding errors caused by discontinuous welding. The whole process is non-sensory operation, and can achieve automatic detection and release. Once the cable length is insufficient during the welding work, because the distance between the pre-stored pulling ring 601 and the traction fixing cylinder 501 is less than the length of the cable on the welding gun body 101, the anti-slip electromagnet 504 is energized and the magnetic positioning column 505 is attracted. At this time, the positioning column 505 no longer blocks the limit column 603 with the limit setting. At this time, the limit column 603 loses the limit and can move outward, and the connecting line 602 can lose the limit and move in the traction fixing cylinder 501 to release compensation.

[0037] The second embodiment, on the basis of the first embodiment, the stop protection member 7 includes: a stop plate 701 and a stop spring piece 702, and the stop plates 701 are provided with two, and the two stop plates 701 are rotatably mounted on the swing arm 201 respectively; a stop spring piece 702 is fixedly mounted between the two stop plates 701, and the stop spring piece 702 is located inside the swing arm 201; the stop protection member 7 also includes: a limit electromagnet 703, two limit electromagnets 703 are fixedly mounted on the swing arm 201, and the two limit electromagnets 703 are respectively used to magnetically attract the stop plate 701; the limit electromagnet 703, the power block 502 and the extrusion spring piece 503 are connected in series with the power supply. The use of the stop protection member 7 can ensure that when the staff uses this structure, they will not forget the reserved length of the cable on the welding gun body 101, resulting in the problem of insufficient cable length during subsequent welding work, which can ensure that before welding work is carried out. The self-inspection work is completed, which ensures that cables can be reserved before multiple welding works, ensuring smooth welding. The stop plate 701 can be automatically opened when the staff forgets the reserved cable length. At this time, the staff cannot insert the swing arm 201 into the weld to complete the welding work. The structure is more reasonable, which prevents the staff from illegally operating the reserved cable or forgetting the reserved cable. When the positioning column 505 releases the limit setting of the limit column 603, the limit column 603 will no longer squeeze the set extrusion spring piece 503 to fit the power block 502. At this time, the limit electromagnet 703 will be powered off and will no longer magnetically attract the stop plate 701. Under the extrusion of the stop spring piece 702, the stop plate 701 can expand to stop at the weld, preventing the staff from directly inserting the swing arm 201 into the weld, which can serve as a reminder. The limit column 603 needs to be pulled to the extrusion spring piece 503 to reserve the cable before normal operation and welding can be carried out.

[0038] The working principle of this embodiment is as follows: First, when welding, hold the welding gun body 101, and manually pinch the two cover buckle swing plates 301 inward to insert them into the weld. After the cover buckle swing plate 301 is inserted into the weld, the cover buckle swing plate 301 is squeezed by the expansion spring 302, and the two cover buckle swing plates 301 expand outward. At this time, the lower corrugated sheet 303 and the front film 304 are propped up to ensure that the width of the weld is covered. Under the pressure of the torsion spring on the torsion spring shaft 2011, the swing arm 201 can rotate, driving the sponge strip on the cover buckle swing plate 301 to fit the inner side of the box beam weld. The upper weld of the box beam can be welded first. For example, when overhead welding needs to ensure the molten pool filling effect, suction can be performed through the suction pipe 202, and the cover buckle swing plate 301, the lower corrugated sheet 30 3 and the cavity formed by the front film 304 are sucked to ensure the molten pool forming and filling effect during overhead welding. At the same time, when welding to the weld seam on the box beam, the cover buckle swing plate 301 can be directly pulled out from the weld seam, and the expansion spring piece 302 can be elastically squeezed and contracted to ensure flexibility of use. When the cover buckle swing plate 301 moves in contact with the box beam, the upper end of the in-place paddle 401 is squeezed by the inner side of the box beam in real time. At this time, the in-place paddle 401 is separated from the contact piece 402 and is attached to the contact piece 402. The indicator light 102 is not turned on and the suction is kept off. Once the cover buckle swing plate 301 no longer fits the box beam and a larger gap is generated, the in-place paddle 401 is no longer squeezed by the inner side of the box beam. At this time, the in-place paddle 401 will be attached to the contact piece 402, and the indicator light 102 can be turned on and the power is turned on. The welding staff needs to make adjustments in time. This structure does not affect the flexibility of the handheld welding gun body 101. When the staff holds the welding gun body 101 for welding, once the cable length is insufficient during the welding work, because the distance between the pre-stored pulling ring 601 and the traction fixing cylinder 501 is less than the length of the cable on the welding gun body 101, the pre-stored pulling ring 601 will be pulled. When the staff continues to hold the welding gun body 101 and move, stretching the tension spring 607, the pre-stored pulling ring 601 will drive the mobile contact circle 6011 to move and fit the fixed contact circle 606. At this time, the anti-slip electromagnet 504 is energized, and the magnetic positioning column 505 is attracted. At this time, the positioning column 505 no longer stops the limit column 603 set in the limit position. When the limit column 603 loses its limit, it can move outward, and the connecting line 602 can lose its limit and move and release in the traction fixed cylinder 501, ensuring that the staff can complete the welding work of welding around the box beam for one week, and the reserved length of the cable on the welding gun body 101 can be used for adaptation. After the limit column 603 is released from the limit, when the next welding is required, the limit ball 604 can be directly held to pull the connecting line 602. At this time, the connecting line 602 drives the limit column 603 to move, and the inclined surface structure of the limit column 603 can be used to directly squeeze the positioning column 505. The positioning column 505 can automatically move up and retract after being compressed, and the spring between the anti-slip electromagnet 504 and the positioning column 505 is used to facilitate the limit column 603 set to be limited again.At this time, the cable on the welding gun body 101 between the traction fixing cylinder 501 and the pre-stored traction ring 601 is reserved again in length. At the same time, the end of the hole on the traction fixing cylinder 501 for passing the connecting line 602 is a turning structure, which can limit the position where the limiting column 603 is pulled into place, ensuring that the extrusion spring piece 503 set on the outside of the limiting column 603 is elastically fitted with the power block 502. At this time, the limiting electromagnet 703 is energized to maintain the magnetic stop plate 701, ensuring that the swing arm 201 can be inserted into the weld without affecting the smooth welding. On the contrary, the positioning column When the limit post 603 of the limit setting is released by 505, the limit post 603 will no longer squeeze the set extrusion spring 503 to fit the power block 502. At this time, the limit electromagnet 703 will be powered off and will no longer magnetically attract the stop plate 701. Under the pressure of the stop spring 702, the stop plate 701 can expand to stop at the weld, preventing the staff from directly inserting the swing arm 201 into the weld. It can serve as a reminder that the limit post 603 needs to be pulled to the extrusion spring 503 and the cables must be reserved before normal operation can be carried out for welding.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for steel structure installation, comprising a welding handpiece (1), wherein a swinging suction piece (2) is mounted on the welding handpiece (1), characterized in that: The swinging suction piece (2) is used for suction during overhead welding; a cover-buckle suction piece (3) is mounted on the swinging suction piece (2); the cover-buckle suction piece (3) is an expandable structure; the cover-buckle suction piece (3) is used to fit inside the weld; the cover-buckle suction piece (3) can be folded to ensure smooth insertion into the inside of the box beam weld; The cover buckle suction piece (3) is provided with an in-place test piece (4); the in-place test piece (4) is used to detect whether the cover buckle suction piece (3) is fitted to the inner side of the steel box beam; The welding handpiece (1) is provided with a traction control component (5); the traction control component (5) is provided with a residual pre-storage component (6); the residual pre-storage component (6) is used to ensure continuous welding; A stop protection member (7) is installed on the swing suction member (2); the stop protection member (7) is used to ensure that the cable margin meets the welding path length requirement; The welding handpiece (1) comprises: a welding gun body (101) and an indicator light (102); the welding gun body (101) is composed of a handle, a cable and a welding gun head; the indicator light (102) is fixedly mounted on the welding gun head of the welding gun body (101); The traction control component (5) comprises: a traction fixing cylinder (501), a power connection block (502), an extrusion spring piece (503), an anti-slipping electromagnet (504) and a positioning column (505); the traction fixing cylinder (501) is fixedly mounted on the welding gun body (101); the traction fixing cylinder (501) is sleeved on the outside of the cable on the welding gun body (101); the power connection block (502) is fixedly mounted inside the traction fixing cylinder (501); the extrusion spring piece (503) is fixedly mounted inside the traction fixing cylinder (501); the extrusion spring piece (503) elastically fits the power connection block (502); the anti-slipping electromagnet (504) is fixedly mounted on the traction fixing cylinder (501); the positioning column (505) is slidably plugged into the traction fixing cylinder (501); the anti-slipping electromagnet (504) is used to magnetically attract the positioning column (505); a spring is provided between the anti-slipping electromagnet (504) and the positioning column (505); The residual pre-stored component (6) comprises: a pre-stored pulling ring (601), a movable electric ring (6011), a connecting line (602), a limiting column (603) and a limiting ball (604), wherein the pre-stored pulling ring (601) is sleeved on the outside of the cable on the welding gun body (101); the movable electric ring (6011) is sleeved on the pre-stored pulling ring (601); the connecting line (602) is fixedly installed on the pre-stored pulling ring (601); the connecting line (602) passes through the traction fixing tube (501); the limiting column (603) is fixedly installed on the connecting line (602), and the limiting column (603) is pressed and fitted with the extrusion spring (503); the limiting ball (604) is fixedly installed at the end of the connecting line (602); the positioning column (505) is used to stop the limiting column (603); the front end of the limiting column (603) is a slope structure; The residual pre-stored component (6) further includes: a pulling cylinder (605), a fixed electric coil (606) and a tension spring (607), wherein the pulling cylinder (605) is slidably sleeved on the pre-stored pulling ring (601); the pulling cylinder (605) is fixedly sleeved on the outside of the cable on the welding gun body (101); a fixed electric coil (606) is fixedly installed on the pulling cylinder (605), and the fixed electric coil (606) is aligned with the movable electric coil (6011); the fixed electric coil (606), the movable electric coil (6011) and the anti-slip electromagnet (504) are connected in series to a power supply; a tension spring (607) is sleeved on the outside of the cable on the welding gun body (101), and the two ends of the tension spring (607) are respectively connected between the pulling cylinder (605) and the pre-stored pulling ring (601); The stop protection member (7) comprises: a stop plate (701) and a stop spring (702); two stop plates (701) are provided, and the two stop plates (701) are rotatably mounted on the swing arm (201); a stop spring (702) is fixedly mounted between the two stop plates (701), and the stop spring (702) is located inside the swing arm (201); The stop protection member (7) further comprises: a limit electromagnet (703); two limit electromagnets (703) are fixedly mounted on the swing arm (201), and the two limit electromagnets (703) are respectively used to magnetically attract the stop plate (701); the limit electromagnet (703), the power connection block (502) and the extrusion spring (503) are connected in series to a power supply.

2. A welding device for steel structure installation according to claim 1, characterized in that: The welding handpiece (1) further comprises a rotating mounting arm (103), and the rotating mounting arm (103) is fixedly mounted on the welding gun head of the welding gun body (101).

3. A welding device for steel structure installation according to claim 2, characterized in that: The swinging suction member (2) comprises: a swinging arm (201), a torsion spring shaft (2011) and a suction pipe (202); the swinging arm (201) is fixedly mounted with the torsion spring shaft (2011); the swinging arm (201) is located inside the rotating mounting arm (103); the torsion spring shaft (2011) is rotatably mounted on the rotating mounting arm (103); a torsion spring is sleeved on the torsion spring shaft (2011); both ends of the torsion spring on the torsion spring shaft (2011) are connected between the torsion spring shaft (2011) and the rotating mounting arm (103); the suction pipe (202) is fixedly mounted on the swinging arm (201); and the end of the suction pipe (202) passes through the swinging arm (201).

4. A welding device for steel structure installation according to claim 3, characterized in that: The cover buckle suction piece (3) comprises: a cover buckle swing plate (301), an expansion spring (302), a lower corrugated sheet (303) and a front film (304). Two cover buckle swing plates (301) are provided, and the two cover buckle swing plates (301) are respectively rotatably mounted on the swing arm (201); an expansion spring (302) is fixedly mounted between the inner sides of the two cover buckle swing plates (301), and the expansion spring (302) is a V-shaped structure; the lower corrugated sheet (303) is fixedly mounted on the bottom of the two cover buckle swing plates (301), and the lower corrugated sheet (303) is an elastic structure; the front end of the two cover buckle swing plates (301) is fixedly mounted, and the front film (304) is an elastic structure; the end of the suction pipe (202) is located between the two cover buckle swing plates (301); and sponge strips are respectively provided on the two cover buckle swing plates (301).

5. A welding device for steel structure installation according to claim 4, characterized in that: The in-place test piece (4) comprises: an in-place paddle (401) and a contact piece (402); the in-place paddle (401) is fixedly mounted on the inner side of the cover buckle swing plate (301); the end of the in-place paddle (401) protrudes from the cover buckle swing plate (301); the contact piece (402) is fixedly mounted on the inner side of the cover buckle swing plate (301); the in-place paddle (401) is attached to the contact piece (402); the in-place paddle (401), the contact piece (402) and the indicator light (102) are connected in series to a power supply.

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