A welding equipment for bridge steel structure construction

Abstract

The present invention relates to the field of welding equipment, and in particular to a welding equipment for bridge steel structure construction, including a mounting plate, a connecting shaft and a welding gun; the mounting plate is fixedly connected with the connecting shaft; the connecting shaft is fixedly connected with the welding gun; the nozzle of the welding gun penetrates the mounting plate; it also includes an electric rotating shaft and a limit plate, etc.; the mounting plate is fixedly connected with a plurality of electric rotating shafts; the output shaft of each electric rotating shaft is fixedly connected with the limit plate. The present invention uses the hot air and airflow discharged from the air nozzle to blow the water remaining in the gap between the two steel bars, thereby blowing away the water remaining in the gap between the two steel bars, and drying the water marks generated when the water remaining in the gap between the two steel bars is blown away, so that the gap between the two steel bars remains dry, so as to facilitate welding work and avoid the presence of water in the welding position, which leads to safety hazards during welding and quality hazards after welding.

Description

Technical Field

[0001] The invention relates to the field of welding equipment, and in particular to welding equipment for bridge steel structure construction. Background Art

[0002] During the construction of bridge steel structures, it is often necessary to weld the steel bars used to connect and fix the steel structures. When the steel bars to be welded are close to the ground, that is, during the welding process, the metal debris generated by welding will cause dust to fly on the ground. When the dust enters the welding point, it will affect the subsequent firmness of the welding. When it rains, there is rain between the two steel bars. When welding is done after the rain, it will be affected by the residual rain between the steel bars, affecting the subsequent welding work. When welding workpieces with water on the two surfaces, the presence of water will have a serious impact on the welding process. The specific impacts include:

[0003] 1. Explosion risk: When water comes into contact with high-temperature welds, it will quickly vaporize. The resulting steam pressure may cause an explosion, posing a danger to operators and equipment.

[0004] 2. Deterioration of welding quality: The presence of moisture will cause pores to form in the weld, reducing the mechanical strength and sealing of the welded joint.

[0005] 3. Weld cracks: The vaporization of water may cause hydrogen-induced cracks, which is especially obvious in the welding of high-strength steel.

[0006] 4. Increased oxidation: The decomposition products of water (mainly hydrogen and oxygen) will accelerate the oxidation process of the metal and affect the welding quality and appearance. Summary of the invention

[0007] In order to overcome the disadvantage that when the steel bars to be welded are close to the ground, that is, during the welding process, the metal debris generated by the welding will splash and cause dust on the ground to fly. When the dust enters the welding point, it will affect the subsequent firmness of the welding. The present invention provides a welding device for bridge steel structure construction.

[0008] The technical implementation scheme of the present invention is: a fixing device for the construction of bridge steel structures, including a mounting plate, a connecting shaft and a welding gun; a connecting shaft is fixedly connected to the mounting plate; a welding gun is fixedly connected to the connecting shaft; the nozzle of the welding gun passes through the mounting plate; it also includes an electric rotating shaft, a limit plate, a first connecting plate, a connecting cylinder, a micro air pump, an air nozzle and a filter assembly; a plurality of electric rotating shafts are fixedly connected to the mounting plate; the output shaft of each electric rotating shaft is fixedly connected to the limit plate; a first connecting plate is fixedly connected to the mounting plate; a connecting cylinder is fixedly connected to the first connecting plate; a micro air pump is connected to the connecting cylinder; the micro air pump is connected to the air nozzle; a filter assembly for filtering sparks generated during welding is connected inside the connecting cylinder.

[0009] Furthermore, the filtering assembly includes a waste box, a filter plate and a purification filter element; the waste box is slidably connected in the connecting tube; a number of filter plates are fixedly connected to the waste box; and a purification filter element for filtering smoke generated during welding is connected to the connecting tube.

[0010] Furthermore, a plurality of second guide plates are fixedly connected to the waste box, and the second guide plates are in contact with the limiting plates.

[0011] Furthermore, the two filter plates are arranged in an inverted eight-shaped structure.

[0012] Furthermore, the purification filter element and the connecting tube are arranged as a quick-release structure.

[0013] Furthermore, the air nozzle is arranged in an upwardly inclined structure.

[0014] Furthermore, it also includes auxiliary components, which include a second connecting plate, an electric push rod, a limit shell, a sponge roller, a discharge pipe and a scraper; a plurality of second connecting plates are fixedly connected to the mounting plate; an electric push rod is fixedly connected to each second connecting plate; the telescopic ends of all the electric push rods are commonly fixedly connected to the limit shell; the sponge roller is rotatably connected to the limit shell; the discharge pipe is connected to the limit shell; a scraper is fixedly connected to the inside of the limit shell, and the scraper contacts and squeezes the sponge roller.

[0015] Furthermore, the scraper is arranged in an inclined structure.

[0016] Furthermore, it also includes a limiting component, which includes an elastic cloth, a first thermal insulation pad and a limiting rod; each limiting plate is fixedly connected to an elastic cloth, and all the elastic cloths are also fixedly connected to the mounting plate; each elastic cloth is fixedly connected to a first thermal insulation pad; each limiting plate is fixedly connected to a number of limiting rods.

[0017] Furthermore, the two limit rods on the same side are arranged in an eight-shaped shape.

[0018] The present invention has the following advantages: 1. The present invention blows the water remaining in the gap between the two steel bars by the hot air and airflow discharged from the air nozzle, thereby blowing away the water remaining in the gap between the two steel bars, and drying the water marks generated when the water remaining in the gap between the two steel bars is blown away, so that the gap between the two steel bars is kept dry, so as to facilitate welding work and avoid the presence of water in the welding place, which leads to safety hazards during welding and quality hazards after welding;

[0019] 2. The present invention drives the sponge roller to rotate in contact with the steel bar, first cleans the water and impurities attached to the surface of the steel bar, and at the same time scrapes the water and impurities attached to the sponge roller through the scraper, then controls the operation of the external dust collection device, and uses the discharge pipe to match the cleaned water and impurities, so that it is more convenient for the hot air and airflow discharged from the air nozzle to clean the water between the two steel bars, and can avoid the problem of poor cleaning effect of only the hot air and airflow discharged from the air nozzle when there is a lot of water between the two steel bars, thereby ensuring the welding work;

[0020] 3. The present invention also limits the contact process between the steel bars through the limit rod, and cooperates with the elastic cloth and the first thermal insulation pad to better push the two steel bars so that the two steel bars are close to each other. Therefore, during the welding process, when the operator drives the entire welding equipment along the two steel bars through the welding gun, the position of the two steel bars can be automatically corrected through the limit plate, elastic cloth, the first thermal insulation pad and the limit rod, which is convenient for welding. At the same time, the elastic cloth, the first thermal insulation pad and the limit rod support the entire welding equipment on the two steel bars, which is also convenient for the operator to drive the welding equipment to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the welding equipment for bridge steel structure construction of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the welding equipment for bridge steel structure construction of the present invention;

[0023] Figure 3 It is a schematic diagram of the combined structure of the welding equipment for bridge steel structure construction of the present invention, including a connecting cylinder, a waste box, a filter plate and a purification filter element;

[0024] Figure 4 This is a schematic diagram of the combined structure of a micro air pump and an air nozzle of welding equipment for bridge steel structure construction of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the auxiliary components of the welding equipment for bridge steel structure construction of the present invention;

[0026] Figure 6 It is a schematic diagram of the combined structure of the limiting shell, sponge roller, discharge pipe and scraper of the welding equipment for bridge steel structure construction of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the limiting assembly of the welding equipment for bridge steel structure construction of the present invention.

[0028] The meaning of the reference numbers in the figure: 001-rebar, 1-mounting plate, 2-connecting shaft, 3-welding gun, 4-electric rotating shaft, 5-limiting plate, 6-first connecting plate, 7-connecting cylinder, 8-waste box, 8001-second guide plate, 9-filter plate, 10-purification filter element, 11-micro air pump, 12-air nozzle, 101-second connecting plate, 102-electric push rod, 103-limiting shell, 104-sponge roller, 105-discharge pipe, 106-scraper, 201-elastic cloth, 202-first thermal insulation pad, 203-limiting rod. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1

[0031] A welding device for bridge steel structure construction, such as Figure 1-Figure 4 As shown, it includes a mounting plate 1, a connecting shaft 2 and a welding gun 3; the mounting plate 1 is fixedly connected to the connecting shaft 2; the connecting shaft 2 is fixedly connected to the welding gun 3; the nozzle of the welding gun 3 penetrates the mounting plate 1;

[0032] It also includes an electric rotating shaft 4, a limit plate 5, a first connecting plate 6, a connecting tube 7, a micro air pump 11, an air nozzle 12 and a filter assembly; two symmetrically arranged electric rotating shafts 4 are fixedly connected to the mounting plate 1; the output shaft of each electric rotating shaft 4 is fixedly connected to the limit plate 5; the mounting plate 1 is fixedly connected to the first connecting plate 6; the first connecting plate 6 is fixedly connected to the connecting tube 7; the connecting tube 7 is connected to the micro air pump 11; the micro air pump 11 is connected to the air nozzle 12; and the filter assembly is connected inside the connecting tube 7.

[0033] The filter assembly includes a waste box 8, a filter plate 9 and a purification filter element 10; the waste box 8 is slidably connected in the connecting tube 7; two symmetrically arranged filter plates 9 are fixedly connected to the waste box 8; the purification filter element 10 is connected to the connecting tube 7.

[0034] Two symmetrically arranged second guide plates 8001 are fixedly connected to the waste box 8 . The second guide plates 8001 are in contact with the limiting plate 5 and are used to guide the flying sparks to slide into the waste box 8 .

[0035] The two filter plates 9 are arranged in an inverted eight-shaped structure to limit the impurities collected in the waste box 8.

[0036] The purification filter element 10 and the connecting tube 7 are arranged as a quick-release structure, so that the purification filter element 10 is easily replaced.

[0037] The air nozzle 12 is arranged in an upwardly inclined structure for discharging hot air upwardly.

[0038] During the welding process of bridge steel structure construction, when the steel bar 001 to be welded is close to the ground, a large amount of heat will be generated during the welding process, making the dust on the ground drier, and then the dust is more easily raised, and the sparks generated by welding will hit the ground, causing dust to fly. The flying dust will affect the workers' line of sight, and then affect the welding work. When the flying dust adheres to the welding area, the impurities in the dust will be melted into the weld, affecting the quality of the weld. Therefore, when welding steel bar 001, the worker first holds the welding gun 3 to drive the mounting plate 1 to move close to the welding position on the steel bar 001, and then controls the two electric shafts 4 to drive the two limit plates 5 to rotate, so that the two limit plates 5 move toward each other, thereby wrapping the steel bar 001, and then controls the welding gun 3 to operate for welding. At this time, the heat and sparks generated during welding are shielded by the limit plates 5 to prevent the heat and sparks generated during welding from contacting the ground, resulting in dust during welding. Although the welding process is smooth, the welding process is not smooth. The limit plate 5 can prevent the hot air and sparks generated by welding from causing dust to fly, but a large amount of heat generated during welding will accumulate in the limit plate 5, causing the temperature of the welding gun 3 nozzle and the electric shaft 4 to be too high. It should be noted that if the nozzle of the welding gun 3 is in a high temperature environment for a long time, it will cause the nozzle material to degrade and accelerate wear. If the electric shaft 4 is in a high temperature environment for a long time, it is easy to cause the electric shaft 4 to fail. Therefore, during the welding process, the micro air pump 11 is controlled to operate, so as to absorb the hot air generated by welding through the connecting tube 7, and then discharge it through the air nozzle 12, so as to avoid the problem that a large amount of heat accumulates in the limit plate 5 during the welding process, resulting in the use of the welding gun 3 nozzle and the electric shaft 4 being affected. When the hot air generated by welding is discharged through the air nozzle 12, the air nozzle 12 is set to be designed to face upward to avoid the discharged hot air blowing on the ground, causing dust. At the same time, the air nozzle 12 is aimed at the steel bar 001, that is, the subsequent welding parts are preheated by hot air to achieve the waste utilization effect of hot air.

[0039] When the hot air in the limit plate 5 is sucked by the micro air pump 11 and the connecting tube 7, the external airflow is also attracted by the suction of the micro air pump 11, so that the external airflow enters the limit plate 5 and is then sucked away by the micro air pump 11, so that the airflow forms a circulation in the limit plate 5 to reduce the temperature of the welding gun 3 nozzle and the electric rotating shaft 4, which is convenient for the use of the welding gun 3 nozzle and the electric rotating shaft 4. At the same time, when the air nozzle 12 discharges the hot air and airflow sucked by the micro air pump 11, the micro air pump 11 provides a strong suction effect, so that the hot air and airflow are quickly discharged through the air nozzle 12, thereby blowing away the dust in the gap between the two steel bars 001. Thereby ensuring the quality of subsequent welding. When welding the gap between the two steel bars 001 after the sky clears up after rain, there is a small amount of water remaining in the gap between the two steel bars 001. At this time, the hot air and airflow discharged by the air nozzle 12 blow the water remaining in the gap between the two steel bars 001, thereby blowing away the water remaining in the gap between the two steel bars 001 and drying the water marks produced when the water remaining in the gap between the two steel bars 001 is blown away, so that the gap between the two steel bars 001 remains dry, so as to facilitate welding work and avoid the presence of water in the welding place, which leads to safety hazards during welding and quality hazards after welding.

[0040] It is worth noting that when welding two steel bars 001 together, the welding equipment is manually driven to move slowly and at a uniform speed, so that the fast hot air and airflow discharged through the air nozzle 12 have enough time to blow away the small amount of water remaining in the gap between the two steel bars 001 and dry the water marks.

[0041] In the process of inhaling hot air through the connecting tube 7 and discharging the hot air through the air nozzle 12, impurities and smoke (sparks spattered during welding) in the hot air are filtered through the waste box 8, the filter plate 9 and the purification filter element 10 to prevent the air nozzle 12 from discharging hot air containing smoke harmful to the health of the workers. At the same time, the second guide plate 8001 guides part of the impurities generated by welding (sparks spattered during welding), and the impurities are accumulated in the waste box 8 for subsequent cleaning. The filter plate 9 is arranged in an inverted eight-shaped structure to limit the impurities collected in the waste box 8 to prevent the impurities from falling after welding is completed.

[0042] Example 2

[0043] On the basis of the above-mentioned embodiment 1, Figure 4-Figure 6As shown, it also includes auxiliary components, which include a second connecting plate 101, an electric push rod 102, a limiting shell 103, a sponge roller 104, a discharge pipe 105 and a scraper 106; two symmetrically arranged second connecting plates 101 are fixedly connected to the mounting plate 1; each second connecting plate 101 is fixedly connected to an electric push rod 102; the telescopic ends of all the electric push rods 102 are fixedly connected to the limiting shell 103; the sponge roller 104 is rotatably connected to the limiting shell 103; the discharge pipe 105 is connected to the limiting shell 103; the scraper 106 is fixedly connected inside the limiting shell 103, and the scraper 106 contacts and squeezes the sponge roller 104.

[0044] The scraper 106 is arranged in an inclined structure to facilitate the scraped water and impurities to slide off.

[0045] Before the welding work begins, and after the two limit plates 5 rotate and contact each other, the staff first uses an external dust suction device to connect with the discharge pipe 105. During the welding process, the electric push rod 102 is controlled to push the limit shell 103 to move downward, and the limit shell 103 drives the sponge roller 104 to move downward, close to and contact the steel bar 001, and squeeze the sponge roller 104, so that the sponge roller 104 is deformed and close to the steel bar 001. That is, during the welding process, the welding gun 3 drives the mounting plate 1 to move, the mounting plate 1 drives the second connecting plate 101 to move, the second connecting plate 101 drives the limit shell 103 to move, and the limit shell 103 drives the parts connected to it to move. As it moves, the limiting shell 103 drives the sponge roller 104, the discharge pipe 105 and the scraper 106 to follow the movement, that is, it drives the sponge roller 104 to rotate in contact with the steel bar 001, first cleaning the water and impurities on the steel bar 001, and at the same time scraping off the water and impurities adhering to the sponge roller 104 through the scraper 106, then controlling the operation of the external vacuum device, and coordinating the cleaned water and impurities through the discharge pipe 105, so that it is easier for the hot air and airflow discharged from the air nozzle 12 to clean the water between the two steel bars 001, and can avoid the problem of poor cleaning effect of the hot air and airflow discharged only by the air nozzle 12 when there is a lot of water between the two steel bars 001, thereby ensuring the welding work.

[0046] When the scraper 106 scrapes off the water and impurities adhered to the sponge roller 104 and the external vacuum device cooperates with the cleaned water and impurities through the discharge pipe 105, the hot air and airflow sprayed from the air nozzle 12 will be blocked by the limiting shell 103, and then sucked away by the external vacuum device through the discharge pipe 105. At this time, the hot air and airflow used to clean the water between the two steel bars 001 are also used to cooperate with the scraper 106 to dry the sponge roller 104.

[0047] Example 3

[0048] Based on the above embodiment 2, Figure 7As shown, it also includes a limiting component, which includes an elastic cloth 201, a first thermal insulation pad 202 and a limiting rod 203; each limiting plate 5 is fixedly connected to an elastic cloth 201, and all the elastic cloths 201 are also fixedly connected to the mounting plate 1; each elastic cloth 201 is fixedly connected to a first thermal insulation pad 202; each limiting plate 5 is fixedly connected to two symmetrically arranged limiting rods 203.

[0049] The two limiting rods 203 on the same side are arranged in an eight-shaped shape to correct the misaligned steel bars 001.

[0050] It should be noted that, during the welding process of two steel bars 001, one of the steel bars 001 is fixed and the other steel bar 001 is in a movable state or simply auxiliary fixed, that is, the position of the steel bar 001 needs to be constantly adjusted during the welding process. Therefore, in the process of controlling the two electric shafts 4 to drive the two limit plates 5 to rotate and wrap the steel bars 001, the two limit plates 5 drive the two elastic cloths 201 to approach the steel bars 001, and the elastic cloth 201 drives the first thermal insulation pad 202 to fit the steel bars 001, so as to avoid excessive temperature during welding and damage to the elastic cloth 201. In the process of the two limit plates 5 contacting each other, the elastic cloth 201 drives the first thermal insulation pad 202 to gradually push the steel bars 001 to move, so that the two steel bars 001 gradually approach each other. When the two limit plates 5 are in contact, the two steel bars 001 are also pushed to a state of contact with each other. At the same time, when the two limit plates 5 are in contact, During the process, the limit plate 5 also drives the limit rod 203 to approach and squeeze the steel bar 001, so that the steel bar 001 is limited by the limit rod 203 to avoid the two steel bars 001 from being misaligned up and down. At the same time, the limit rod 203 also limits the contact process of the steel bars 001, and cooperates with the elastic cloth 201 and the first thermal insulation pad 202 to better push the two steel bars 001 so that the two steel bars 001 are close to each other. Therefore, during the welding process, when the staff drives the entire welding equipment to move along the two steel bars 001 through the welding gun 3, the position of the two steel bars 001 can be automatically corrected through the limit plate 5, the elastic cloth 201, the first thermal insulation pad 202 and the limit rod 203, which is convenient for welding. At the same time, the elastic cloth 201, the first thermal insulation pad 202 and the limit rod 203 make the entire welding equipment supported on the two steel bars 001, which is also convenient for the operator to drive the welding equipment to move.

[0051] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A welding device for bridge steel structure construction, for welding steel bars (001) used to connect and fix steel structures, comprising a mounting plate (1), a connecting shaft (2) and a welding gun (3); the mounting plate (1) is fixedly connected to the connecting shaft (2); the connecting shaft (2) is fixedly connected to the welding gun (3); the nozzle of the welding gun (3) penetrates the mounting plate (1); the device is characterized in that: The invention also comprises an electric rotating shaft (4), a limit plate (5), a first connecting plate (6), a connecting cylinder (7), a micro air pump (11), an air nozzle (12) and a filter assembly; a plurality of electric rotating shafts (4) are fixedly connected to the mounting plate (1); the output shaft of each electric rotating shaft (4) is fixedly connected to the limit plate (5); the mounting plate (1) is fixedly connected to the first connecting plate (6); the first connecting plate (6) is fixedly connected to the connecting cylinder (7); the connecting cylinder (7) is connected to the micro air pump (11); the micro air pump (11) is connected to the air nozzle (12); the connecting cylinder (7) is internally connected to a filter assembly for filtering sparks generated during welding; the air nozzle (12) ) is arranged to be inclined upward; during the welding process, the micro air pump (11) is controlled to operate, so that the hot air generated by the welding is absorbed through the connecting tube (7) and then discharged through the air nozzle (12), so as to avoid the problem that a large amount of heat is accumulated in the limit plate (5) during the welding process, resulting in the nozzle of the welding gun (3) and the electric shaft (4) being affected. When the hot air generated by the welding is discharged through the air nozzle (12), the air nozzle (12) is arranged to be designed to face upward, so as to avoid the discharged hot air being blown on the ground and causing dust. At the same time, the air nozzle (12) is aimed at the steel bar (001), that is, the subsequent welding parts are preheated by the hot air, so as to achieve the waste utilization effect of the hot air.

2. A welding device for bridge steel structure construction according to claim 1, characterized in that: The filter assembly comprises a waste box (8), a filter plate (9) and a purification filter element (10); the waste box (8) is slidably connected inside the connecting tube (7); a plurality of filter plates (9) are fixedly connected to the waste box (8); and the purification filter element (10) for filtering fumes generated during welding is connected to the connecting tube (7).

3. A welding device for bridge steel structure construction according to claim 2, characterized in that: A plurality of second guide plates (8001) are fixedly connected to the waste box (8), and the second guide plates (8001) are in contact with the limiting plates (5).

4. A welding device for bridge steel structure construction according to claim 2, characterized in that: The two filter plates (9) are arranged in an inverted eight-shaped structure.

5. A welding device for bridge steel structure construction according to claim 2, characterized in that: The purification filter element (10) and the connecting tube (7) are arranged as a quick-release structure.

6. A welding device for bridge steel structure construction according to claim 5, characterized in that: The invention also comprises an auxiliary component, which comprises a second connecting plate (101), an electric push rod (102), a limiting shell (103), a sponge roller (104), a discharge pipe (105) and a scraper (106); a plurality of second connecting plates (101) are fixedly connected to the mounting plate (1); each second connecting plate (101) is fixedly connected to the electric push rod (102); the telescopic ends of all the electric push rods (102) are fixedly connected to the limiting shell (103); the sponge roller (104) is rotatably connected to the limiting shell (103); the discharge pipe (105) is connected to the limiting shell (103); the scraper (106) is fixedly connected inside the limiting shell (103), and the scraper (106) contacts and squeezes the sponge roller (104).

7. A welding device for bridge steel structure construction according to claim 6, characterized in that: The scraper (106) is arranged in an inclined structure.

8. A welding device for bridge steel structure construction according to claim 7, characterized in that: It also includes a limiting assembly, which includes an elastic cloth (201), a first thermal insulation pad (202) and a limiting rod (203); each limiting plate (5) is fixedly connected to the elastic cloth (201), and all the elastic cloths (201) are also fixedly connected to the mounting plate (1); each elastic cloth (201) is fixedly connected to the first thermal insulation pad (202); and each limiting plate (5) is fixedly connected to a plurality of limiting rods (203).

9. A welding device for bridge steel structure construction according to claim 8, characterized in that: The two limiting rods (203) on the same side are arranged in an eight-shaped configuration.

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