Welding device for steel structure installation

Abstract

The invention discloses a welding device for steel structure installation, and relates to the technical field of steel structure welding. Comprising a welding handheld part, and a swing suction part is installed on the welding handheld part and used for overhead welding suction; a cover buckle suction piece is mounted on the swinging suction piece; the cover buckle suction piece is of an expandable structure. The cover buckle suction part is used for being attached to the inner side of a welding seam. An in-place test piece is mounted on the cover buckle suction piece; the problems that an existing welding device for steel structure installation is inconvenient to expand and surround a welding seam, a molten pool is prone to being damaged, and a worker is inconvenient to remind to reserve a cable are solved. By the adoption of the stop protection piece, it can be guaranteed that when a worker uses the welding gun, the problem that the length of a cable is still insufficient in the subsequent welding work process due to the fact that the worker forgets to reserve the reserved length of the cable on the welding gun body is solved, and self-inspection work is completed before welding work is conducted.

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 of steel structures, it is often necessary to connect and weld two sections of steel structure box girders. Usually, workers are required to hold a welding gun and weld 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 drip 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 excessive 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 quality of the weld.

[0003] For this purpose, 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 mentioned 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 reminding workers to reserve cables.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for steel structure installation, comprising a welding handpiece, a swinging suction piece is 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 surplus pre-storage piece is installed on the traction control piece; the surplus pre-storage 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 surplus meets the welding path length requirement; the welding handpiece comprises: a welding gun body and an indicator light, the welding gun body is composed 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 hand piece 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 comprises: a swing arm, a torsion spring shaft and a suction pipe, the swing arm is fixedly mounted with a torsion spring shaft; 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 on 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; 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, wherein 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, the contact piece and the indicator light are connected in series with a power supply.

[0010] Preferably, the traction control component includes: a traction fixed cylinder, a power connection block, an extrusion spring piece, an anti-slip electromagnet and a positioning column, the traction fixed cylinder is fixedly installed on the welding gun body; the traction fixed cylinder is sleeved on the outside of the cable on the welding gun body; the power connection block is fixedly installed inside the traction fixed cylinder; the extrusion spring piece is fixedly installed inside the traction fixed cylinder; the extrusion spring piece elastically fits the power connection block; the anti-slip electromagnet is fixedly installed on the traction fixed cylinder; the positioning column is slidably inserted on the traction fixed cylinder; 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 a traction fixing tube; the connecting wire is fixedly installed with a limit column, and the limit column squeezes and fits the extrusion spring sheet; 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 cylinder, a fixed electric coil and a tension spring, the pulling cylinder is slidably sleeved on the pre-stored pulling ring; the pulling cylinder is fixedly sleeved on the outside of the cable on the welding gun body; a fixed electric coil is fixedly installed on the pulling cylinder, 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 cylinder and the pre-stored pulling ring.

[0013] Preferably, the stop protection member comprises: a stop plate and a stop spring piece, wherein 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 limit electromagnet, two limit electromagnets are fixedly mounted on the swing arm, and the two limit electromagnets are respectively used for magnetically attracting the stop plate; the limit 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: The present invention adopts a surplus pre-stored part to automatically replenish the cable when the cable length is insufficient during the welding work, so as to avoid the welding work being directly stopped due to the 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, so as to ensure the welding continuity of the present structure.

[0016] The use of a stop protection piece can ensure that when the staff uses the structure, they do 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 be automatically opened 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.

[0017] 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, which can avoid the molten pool falling under the action of gravity during overhead welding, which may cause the weld to be 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

[0018] Figure 1 This is a schematic diagram of the overall structure of a welding device for steel structure installation according to the present invention; 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; Figure 3 This is a schematic diagram of the bottom structure of a welding device for steel structure installation according to the present invention; Figure 4 This is a schematic diagram of the structure of the welding handpiece of the present invention; Figure 5 It is a schematic diagram of the structure of the swing suction piece of the present invention; Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle B region; Figure 7 For the present invention Figure 6 A magnified view of the structure of the middle C region; Figure 8 For the present invention Figure 2 A magnified view of the structure of the middle D region; Fig. 9 This is a schematic diagram of the structure of the surplus pre-storage component of the present invention; Fig.10 This is a schematic diagram of the structure of the surplus pre-storage component of the present invention; Fig.11 It is a schematic diagram of the structure of the stop protection member of the present invention.

[0019] In the 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 pipe; 3. cover buckle suction piece; 301. cover buckle swing plate; 302. expansion spring piece; 303. lower corrugated sheet; 304. front film; 4. in-place test piece; 401, in-position paddle; 402, contact piece; 5, traction control part; 501, traction fixing cylinder; 502, power connection block; 503, extrusion spring; 504, anti-dropping electromagnet; 505, positioning column; 6, surplus pre-storage part; 601, pre-stored pulling ring; 6011, movable power connection coil; 602, connecting line; 603, limiting column; 604, limiting ball; 605, pulling cylinder; 606, fixed power connection coil; 607, tension spring; 7, stop protection part; 701, stop plate; 702, stop spring; 703, limit electromagnet. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1: Please refer to Figures 1 to 11 As shown: 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 that 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 surplus pre-storage piece 6 is installed on the traction control piece 5; the surplus 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 surplus 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 installed on the welding gun head of the welding gun body 101.

[0022] The welding hand piece 1 further comprises: a rotating mounting arm 103, on which the rotating mounting arm 103 is fixedly mounted the welding gun head of the welding gun body 101; the swinging suction piece 2 comprises: a swinging arm 201, a torsion spring shaft 2011 and a suction pipe 202, on which the torsion spring shaft 2011 is fixedly mounted; the swinging arm 201 is located on the inner side of 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 suction tube 202 passes through the swing arm 201; the cover buckle suction piece 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 installed on the swing arm 201 respectively; an expansion spring piece 302 is fixedly installed 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 installed at 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 installed at 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; the two cover buckle swing plates 301 are respectively provided with sponge strips, and the cover buckle suction piece 3 can cooperate with the swing suction piece 2 to suck the inside of the weld in real time during overhead welding, which can avoid the situation where the molten pool falls under the action of gravity during overhead welding and easily causes the weld to be not fully filled. The cover buckle suction piece 3 used in this structure can be directly covered and buckled on the inside of the weld for suction, and the suction area is larger than the width of the weld to ensure the comprehensiveness of the weld suction filling. 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 recovery, and the structure is more reasonable. It can avoid the difficulty of applying the traditional negative pressure suction method of filling welds 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 the 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 propped up 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, thereby ensuring the molten pool forming and filling effect during overhead welding.

[0023] 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. The present structure can further ensure the stability of the negative pressure suction force, ensure the uniformity of the molten pool forming, and avoid frequent changes in the distance between the cover buckle swing plate 301 and the inner side of the box beam due to factors such as hand shaking. 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, 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 larger gap is generated, the indicator light 102 can be connected to the power supply and light up to prompt.

[0024] The traction control part 5 includes: a traction fixed cylinder 501, a power block 502, an extrusion spring piece 503, an anti-slipping 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 piece 503 is fixedly installed inside the traction fixed cylinder 501; the extrusion spring piece 503 elastically fits the power block 502; the anti-slipping 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-slipping electromagnet 504 is used to magnetically attract the positioning column 505; the anti-slipping electromagnet 504 and the positioning A spring is provided between the columns 505; the surplus pre-stored component 6 includes: a pre-stored pulling ring 601, a mobile electric coil 6011, a connecting line 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 line 602; 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 squeezes and fits 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; 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 the reserved retractable length of the cable; 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 on 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 staff is performing welding work. Automatic replenishment can avoid the welding work from being stopped directly due to the limited cable length. However, if the staff 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. The present structure can release the pre-stored length after automatic detection, which can ensure the welding continuity of the present structure and prevent welding errors caused by discontinuous welding. The whole process is non-sensing and can be released after automatic detection. 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 stops the limit column 603 set 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.

[0025] Embodiment 2, on the basis of embodiment 1, the stop protection member 7 comprises: a stop plate 701 and a stop spring piece 702, two stop plates 701 are provided, 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 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 piece 503 are connected in series with the power supply, and the use of the stop protection member 7 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 101, resulting in the problem of insufficient cable length in the subsequent welding process, which can ensure that before the welding work is carried out. The self-inspection work is completed, which ensures that cables can be reserved before multiple welding works to ensure 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 to prevent the staff from illegally operating the reserved cable or forgetting the reserved cable. When the positioning column 505 releases the limit column 603 set by the limit setting, the limit column 603 will no longer squeeze the set extrusion spring piece 503 to fit the power connection 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 to prevent the staff from directly inserting the swing arm 201 into the weld. It can play a prompting role. 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.

[0026] The working principle of this embodiment is as follows: first, during welding, the welding gun body 101 is held in hand, and the two cover buckle swing plates 301 are manually pinched inward and inserted 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 to drive 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 on the box beam, the cover buckle swing plate 301 can be directly pulled out from the weld, and the expansion spring piece 302 can be elastically squeezed and contracted to ensure flexibility in 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 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 powered on to light up. 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 it, and the tension spring 607 is stretched, 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 to magnetically attract the positioning column 505. At this time, the positioning column 505 no longer stops the limit column 603 of the limit setting. When the limit column 603 loses the limit, it can move outward, and the connecting line 602 can lose the limit and move and release in the traction fixing 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. After being compressed, the positioning column 505 can automatically move up and retract, and the spring between the anti-slip electromagnet 504 and the positioning column 505 is used to facilitate the limit column 603 set by the stopper 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 extruded on the outside of the limiting column 603 is elastically fitted to 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 column 603 set by 505 is released, 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 to prevent the staff from directly inserting the swing arm 201 into the weld. It can serve as a reminder that the limit column 603 needs to be pulled to the extrusion spring piece 503 and the cable must be reserved before normal operation can be performed for welding.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present 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 swing suction piece (2) is used for suction during overhead welding; a cover-buckle suction piece (3) is mounted on the swing 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; The cover buckle suction piece (3) is mounted with a position test piece (4); the position test piece (4) is used to detect whether the cover buckle suction piece (3) is in contact with the inner side of the steel box beam; The welding hand piece (1) is provided with a traction control component (5); the traction control component (5) is provided with a surplus pre-storage component (6); the surplus 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) comprises 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).

2. A welding device for steel structure installation according to claim 1, characterized in that: The welding hand piece (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 swing suction member (2) comprises: a swing arm (201), a torsion spring shaft (2011) and a suction pipe (202); the swing arm (201) is fixedly mounted with a torsion spring shaft (2011); the swing arm (201) is located inside a rotatable mounting arm (103); the torsion spring shaft (2011) is rotatably mounted on the rotatable mounting arm (103); a torsion spring is sleeved on the torsion spring shaft (2011); two ends of the torsion spring on the torsion spring shaft (2011) are connected between the torsion spring shaft (2011) and the rotatable mounting arm (103); the suction pipe (202) is fixedly mounted on the swing arm (201); and an end of the suction pipe (202) passes through the swing 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 sheet (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 sheet (302) is fixedly mounted between the inner sides of the two cover buckle swing plates (301), and the expansion spring sheet (302) is a V-shaped structure; a 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; a front film (304) is fixedly mounted on the front ends of the two cover buckle swing plates (301), 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.

6. A welding device for steel structure installation according to claim 3, characterized in that: The traction control component (5) comprises: a traction fixing cylinder (501), a power connection block (502), an extrusion spring sheet (503), an anti-slipping electromagnet (504) and a positioning column (505); the traction fixing cylinder (501) is fixedly mounted on a welding gun body (101); the traction fixing cylinder (501) is sleeved on the outside of a cable on the welding gun body (101); a power connection block (502) is fixedly mounted inside the traction fixing cylinder (501); an extrusion spring sheet (503) is fixedly mounted inside the traction fixing cylinder (501); the extrusion spring sheet (503) elastically fits the power connection block (502); an anti-slipping electromagnet (504) is fixedly mounted on the traction fixing cylinder (501); a positioning column (505) is slidably inserted on the traction fixing cylinder (501); the anti-slipping electromagnet (504) is used to magnetically attract the positioning column (505); and a spring is provided between the anti-slipping electromagnet (504) and the positioning column (505).

7. A welding device for steel structure installation according to claim 6, characterized in that: The residual pre-storage component (6) comprises: a pre-storage pulling ring (601), a movable electric coil (6011), a connecting wire (602), a limiting column (603) and a limiting ball (604), wherein the pre-storage pulling ring (601) is sleeved on the outside of the cable on the welding gun body (101); the movable electric coil (6011) is sleeved on the pre-storage pulling ring (601); the connecting wire (602) is fixedly installed on the pre-storage pulling ring (601); 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) is pressed and fitted with the extrusion spring sheet (503); the limiting ball (604) is fixedly installed at the end of the connecting wire (602); the positioning column (505) is used to stop the limiting column (603); and the front end of the limiting column (603) is an inclined structure.

8. A welding device for steel structure installation according to claim 7, characterized in that: The residual pre-storage 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-storage 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-dropping electromagnet (504) are connected in series with 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-storage pulling ring (601).

9. A welding device for steel structure installation according to claim 6, characterized in that: The stop protection member (7) comprises: a stop plate (701) and a stop spring piece (702); two stop plates (701) are provided, 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).

10. A welding device for steel structure installation according to claim 9, characterized in that: 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); and the limit electromagnet (703), the power connection block (502) and the extrusion spring (503) are connected in series with a power supply.

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