Submerged-arc welding device for special-shaped part

Abstract

The invention provides a submerged-arc welding device for a special-shaped part, and relates to the technical field of submerged-arc welding equipment, the submerged-arc welding device comprises a submerged-arc welding gun part, and a pressing control part is mounted on the submerged-arc welding gun part; the downward pressing control piece is used for adjusting downward pressing force; a welding path rolling part is mounted on the downward pressing control part; the welding path rolling part is used for rolling a welding path; a bottoming fitting piece is mounted on the submerged-arc welding gun part; the bottoming fitting piece is positioned below the pressing control piece; a bottoming detection piece is mounted on the bottoming fitting piece; the bottoming detection piece is used for detecting the bottoming width; the device can be used for detecting the initial backing uniformity of carbon dioxide arc welding, the advancing speed of a welding wire can be conveniently controlled for compensation, the uniformity of a welding path is improved, and the problems that an existing special-shaped part submerged-arc welding device cannot conveniently conduct leveling adjustment work on special-shaped welding seams and cannot automatically test backing parameters of carbon dioxide arc welding are solved.

Description

Technical Field

[0001] The invention relates to the technical field of submerged arc welding equipment, and in particular to a submerged arc welding device for special-shaped parts. Background Art

[0002] Submerged arc welding is a welding method in which an arc burns under a flux layer. In addition to welding wire, flux is also discharged from the head of the submerged arc welding torch, surrounding the welding wire. The flux plays a vital role in submerged arc welding. It not only protects the weld from oxidation and contamination, but also participates in the metallurgical process of the weld, improves the welding process performance, and prevents the occurrence of welding defects. Because submerged arc welding involves the spreading of granular flux, it is mainly used for welding scenarios with workpiece displacement. For example, spiral welding required for special-shaped parts such as pressure vessel pipes can use submerged arc welding. In submerged arc welding, narrow gaps and deep grooves are During welding work, it is usually necessary to use secondary welding to prime to improve the filling effect of submerged arc welding. The current submerged arc welding equipment for special-shaped parts is not convenient for automatic adaptation to spiral welding, and the flux recovery is prone to leakage. It is also not convenient to perform leveling and adjustment work on special-shaped welds. The rough weld path is easy to cause a high bubble rate in the subsequent secondary welding, poor flaw detection performance, and poor aesthetics of the weld path. It is also inconvenient to automatically test the secondary welding prime parameters. The traditional method of automatically pushing out the welding wire at a uniform speed is used. The position with less prime is prone to insufficient melting of the welding wire, which affects the uniformity of the weld path and is not convenient for automatic compensation of the welding wire. Summary of the invention

[0003] The disclosed embodiment relates to a submerged arc welding device for special-shaped parts, whose base detection part can be used to detect the uniformity of the initial base of the second welding, so as to control the welding wire advancement speed for compensation and improve the uniformity of the welding path, thereby solving the problem that the current submerged arc welding device for special-shaped parts is not convenient for leveling and adjusting special-shaped welds and is not convenient for automatically testing the base parameters of the second welding.

[0004] The present invention provides a submerged arc welding device for special-shaped parts, comprising a submerged arc welding gun part, on which a downward pressure control part is installed; the downward pressure control part is used to adjust the downward pressure; a welding path rolling part is installed on the downward pressure control part; the welding path rolling part is used to roll the welding path; a primer fitting part is installed on the submerged arc welding gun part; the primer fitting part is located below the downward pressure control part; a primer detection part is installed on the primer fitting part; the primer detection part is used to detect the primer width; a resistance control part is installed on the primer fitting part; the primer detection part is used to toggle and adjust the resistance control part; an elastic cleaning device is installed at the bottom of the welding path rolling part; the elastic cleaning device is used to clean the welding path; the submerged arc welding gun part comprises: a submerged arc welding gun and a limit ring, the submerged arc welding gun is used to be installed on a submerged arc welding machine frame by bolts; a limit ring is fixedly installed at the bottom of the submerged arc welding gun, and the limit ring is used to limit the primer fitting part.

[0005] In at least some embodiments, the base fitting includes: a downward pressure spring and a downward pressure adapter plate, the downward pressure spring is sleeved on the outside of the submerged arc welding gun; the end of the downward pressure spring is fixedly installed on the bottom of the rotating connecting ring; the downward pressure adapter plate is slidably sleeved on the submerged arc welding gun; the downward pressure spring is located above the downward pressure adapter plate; the downward pressure adapter plate is used for lifting and rotating on the submerged arc welding gun; the downward pressure adapter plate is located above the limit ring.

[0006] In at least some embodiments, the submerged arc welding gun further includes: an external thread and a flux tube, the outer side of the submerged arc welding gun is provided with an external thread; a flux tube is fixedly mounted on the submerged arc welding gun, and the flux tube is externally connected to a flux material box.

[0007] In at least some embodiments, the bottoming detection component includes: a detection mounting plate, a rotating connecting shaft and a rotating torsion spring, the detection mounting plate is fixedly mounted on the downward pressure adapter plate; two rotating connecting shafts are fixedly mounted on the detection mounting plate; and rotating torsion springs are respectively sleeved on the two rotating connecting shafts.

[0008] In at least some embodiments, the welding path rolling component includes: a rolling connecting frame, a rolling adapter wheel frame, a rolling ceramic wheel and an electric heating ring, the rolling connecting frame is rotatably installed in the rotating hole on the rotating connecting ring; the rolling adapter wheel frame is rotatably installed on the rolling connecting frame; the rolling ceramic wheel is rotatably installed on the bottom of the rolling adapter wheel frame; the outer ring of the rolling ceramic wheel is an arc structure; an electric heating ring is fixedly embedded in the inside of the rolling ceramic wheel, and the electric heating ring is connected to an external power supply; the electric heating ring is used to heat and soften the welding path; the rolling ceramic wheel is used to roll in the weld.

[0009] In at least some embodiments, the downward pressure control component includes: a pressure-regulating threaded ring, a pressure-regulating spring and a rotating connecting ring, wherein the pressure-regulating threaded ring is threadedly connected to the external thread; a pressure-regulating spring is sleeved on the submerged arc welding gun, and the end of the pressure-regulating spring is fixedly installed on the bottom of the pressure-regulating threaded ring; a rotating connecting ring is slidably sleeved on the submerged arc welding gun; the pressure-regulating spring is located above the rotating connecting ring; and a rotating hole is provided on the side of the rotating connecting ring.

[0010] In at least some embodiments, the elastic cleaning device includes: a cleaning spring and a cleaning sheet, wherein the cleaning spring is fixedly mounted at the bottom of the roller-pressed connecting frame; a cleaning sheet is fixedly mounted at the bottom of the cleaning spring; the cleaning sheet is used to scrape off the medicine skin; and both sides of the cleaning spring are inclined structures.

[0011] In at least some embodiments, the resistance control component includes: a resistance control frame, a sliding rheostat body and a V-shaped spring piece, the resistance control frame is fixedly mounted on the downward pressure adapter plate by bolts; two sliding rheostat bodies are fixedly mounted on the resistance control frame, and the two sliding rheostat bodies are electrically connected to the wire feeding motor of the submerged arc welding machine; a V-shaped spring piece is fixedly mounted between the resistance paddles of the two sliding rheostat bodies; the V-shaped spring piece is used to elastically push the resistance paddles on the two sliding rheostat bodies; the resistance paddles of the two sliding rheostat bodies are respectively attached to the two resistance swing rods.

[0012] In at least some embodiments, the bottom detection component also includes: a swing detection shaft and a resistance swing rod, and the two rotating connecting shafts are respectively sleeved with a swing detection shaft; the two rotating torsion spring ends are respectively connected to the rotating connecting shaft ends, and the other ends of the two rotating torsion springs are respectively fixedly installed on the swing detection shaft; the bottom of the swing detection shaft is an arc structure; the bottom of the swing detection shaft is used for elastically fitting the weld; the tops of the two swing detection shafts are respectively fixedly installed with resistance swing rods, and the two resistance swing rods are respectively used for rotation and swing.

[0013] In at least some embodiments, the elastic cleaning device also includes: an air jet tube, an absorption hood and an absorption tube. The air jet tube is fixedly installed on the back of the cleaning shrapnel, and the air jet tube is externally connected to a jet pump; the absorption hood is fixedly installed on the cleaning shrapnel; the absorption tube is fixedly installed on the absorption hood, and the absorption tube is externally connected to a suction air pump; the air jet tube is used to sweep and blow the weld path.

[0014] The present invention provides a submerged arc welding device for special-shaped parts, which has the following beneficial effects:

[0015] The present invention adopts a welding path rolling part, which can be used to roll the welding path. The molten pool of the welding path can be rolled using a rolling ceramic wheel, and the electric heating ring can be used for electric heating and softening to ensure the quality of rolling and flattening. The welding path can be flat, and the quality of subsequent secondary repair welding can be affected by protrusions and depressions, and the bubble rate can be reduced. At the same time, this structure also promotes a more beautiful welding path and improves the quality of submerged arc welding process.

[0016] In addition, by using the base detection parts in conjunction with the base fitting parts, the width of the second-stage base welding or the last submerged arc welding can be automatically detected during the welding process. The groove of the weld is utilized for rapid detection. It can be fitted at the junction of the weld edge and the groove to ensure the detection accuracy and can reflect the uniformity of the weld in a timely manner.

[0017] In addition, the use of resistance control components can be realized in conjunction with the base detection component to achieve resistance adjustment. The resistance can be adjusted according to the amount of welding wire at the weld, and compensation adjustment of the welding wire amount can be achieved to improve welding uniformity. As the resistance swing rod moves, the resistance paddle of the sliding rheostat body can slide to adjust the resistance, thereby controlling the resistance of the wire feed motor of the submerged arc welding machine. The smaller the resistance, the higher the speed of the wire feed motor of the submerged arc welding machine, which can slightly accelerate the discharge of the welding wire, promote the increase of the molten pool here, and assist in homogenization.

[0018] In addition, the elastic cleaning device can be used to achieve elastic cleaning of the submerged arc welding coating, scrape cleaning can be achieved, and the weld path can be blown clean at the same time, ensuring that impurities will not be pressed into the weld path when the rolled ceramic wheel rolls the weld path. At the same time, the method of cleaning the coating of this structure can clean the coating first when performing multi-wire welding, ensuring that the quality of submerged arc welding will not be affected by the flux coating during subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 The overall structure schematic diagram of a special-shaped submerged arc welding device of the present application is shown;

[0023] Figure 2 A schematic diagram of the bottom structure of a special-shaped submerged arc welding device of the present application is shown;

[0024] Figure 3 A schematic diagram showing the position of the limit ring of the present application is shown;

[0025] Figure 4 A schematic diagram showing the structure of a submerged arc welding gun of the present application is shown;

[0026] Figure 5 A schematic diagram showing the structure of the push-down control member of the present application is shown;

[0027] Figure 6 A schematic diagram showing the structure of the welding path roller pressing member of the present application is shown;

[0028] Figure 7 A schematic diagram showing the structure of the resistance control element of the present application is shown;

[0029] Figure 8 A schematic diagram showing the structure of the primer detection member of the present application is shown;

[0030] Fig. 9A schematic diagram showing the structure of the elastic cleaning device of the present application;

[0031] Fig.10 This application shows Figure 2 A magnified view of the structure of the middle D region;

[0032] Fig.11 This application shows Figure 8 A magnified view of the structure of the middle E region;

[0033] Fig.12 A schematic diagram of the electric heating coil structure of the present application is shown.

[0034] List of reference numerals:

[0035] 1. Submerged arc welding gun; 101. Submerged arc welding gun; 1011. Limiting ring; 102. External thread; 103. Flux tube; 2. Down-pressure control part; 201. Pressure-adjusting thread ring; 202. Pressure-adjusting spring; 203. Rotary connecting ring; 3. Welding path rolling part; 301. Rolling connecting frame; 302. Rolling adapter wheel frame; 303. Rolling ceramic wheel; 304. Electric heating ring; 4. Primer fitting part; 401. Down-pressure spring; 402. Down-pressure adapter Matching piece; 5. Bottom detection piece; 501. Detection mounting plate; 502. Rotating connecting shaft; 503. Rotating torsion spring; 504. Swinging detection shaft; 5041. Resistance swing rod; 6. Resistance control piece; 601. Resistance control frame; 602. Sliding rheostat body; 603. V-shaped spring; 7. Elastic cleaning device; 701. Cleaning spring; 7011. Cleaning sheet; 702. Jet pipe; 703. Absorption cover; 7031. Absorption tube. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0037] Example 1: Please refer to Figures 1 to 12 :

[0038] The present invention proposes a submerged arc welding device for special-shaped parts, including a submerged arc welding gun part 1, on which a downward pressure control part 2 is installed; the downward pressure control part 2 is used to adjust the downward pressure; a welding path rolling part 3 is installed on the downward pressure control part 2; the welding path rolling part 3 is used to roll the welding path; a primer bonding part 4 is installed on the submerged arc welding gun part 1; the primer bonding part 4 is located below the downward pressure control part 2; a primer detection part 5 is installed on the primer bonding part 4; the primer detection part 5 is used to detect the primer width; the primer bonding part 4 is provided with a primer detection part 5; the primer detection part 5 is used to detect the primer width; the primer bonding part 4 is provided with a primer detection part 5; the primer detection part 5 is used to detect the primer width; the primer bonding part 4 is provided with a primer detection part 5; the primer detection part 5 is used to detect the primer width; the primer bonding part 4 is provided with a primer detection part 5; the primer bonding ... A resistance control component 6 is installed on the fitting 4; the primer detection component 5 is used to toggle and adjust the resistance control component 6; an elastic cleaning device 7 is installed at the bottom of the welding path rolling component 3; the elastic cleaning device 7 is used to clean the welding path; the submerged arc welding gun part 1 includes: a submerged arc welding gun 101 and a limit ring 1011, the submerged arc welding gun 101 is used to be installed on the submerged arc welding machine frame by bolts; the limit ring 1011 is fixedly installed at the bottom of the submerged arc welding gun 101, and the limit ring 1011 is used to limit the primer fitting 4.

[0039] In the disclosed embodiment, the submerged arc welding gun part 1 further includes: an external thread 102 and a flux tube 103, the outer side of the submerged arc welding gun 101 is provided with an external thread 102; the flux tube 103 is fixedly installed on the submerged arc welding gun 101, and the flux tube 103 is externally connected to the flux material box; the downward pressure control part 2 includes: a pressure regulating thread ring 201, a pressure regulating spring 202 and a rotating connection ring 203, the pressure regulating thread ring 201 is threadedly connected to the external thread 102; the submerged arc welding gun 101 is sleeved with a pressure regulating spring 202, and the end of the pressure regulating spring 202 is fixedly installed at the bottom of the pressure regulating thread ring 201; the submerged arc welding gun 101 is slidably sleeved with a rotating connection ring 203; the pressure regulating spring 202 is located at the rotating connection ring 203; a rotating hole is provided on the side of the rotating connecting ring 203; the welding path rolling part 3 includes: a rolling connecting frame 301, a rolling adapting wheel frame 302, a rolling ceramic wheel 303 and an electric heating ring 304, the rolling connecting frame 301 is rotatably installed in the rotating hole on the rotating connecting ring 203; the rolling adapting wheel frame 302 is rotatably installed on the rolling connecting frame 301; the rolling ceramic wheel 303 is rotatably installed at the bottom of the rolling adapting wheel frame 302; the outer ring of the rolling ceramic wheel 303 is an arc structure; the electric heating ring 304 is fixedly embedded in the inside of the rolling ceramic wheel 303, and the electric heating ring 304 is externally connected to a power supply; the electric heating ring 304 is used to heat and soften the welding path; the rolling ceramic wheel 303 is used to Rolling in the weld, using the welding path roller 3, can be used to roll the weld path, the rolling ceramic wheel 303 can be used to roll the molten pool of the weld path, and the electric heating ring 304 can be used for electric heating and softening to ensure the quality of rolling flat forming. This structure can ensure the flatness of the weld path and avoid convexities and depressions that affect the quality of subsequent secondary repair welding. This structure can reduce the bubble rate. At the same time, this structure also promotes a more beautiful weld path and can improve the quality of submerged arc welding process. At the same time, the rolling pressure of this structure is flexible to adjust, and with the downward pressure control part 2 and the welding path roller 3, multi-angle adaptation of welds can be achieved. Crooked spiral welds can be adapted, the structure is more reasonable, and the rotating pressure regulating thread The ring 201 squeezes the pressure regulating spring 202 to compress it. The greater the compression degree of the pressure regulating spring 202, the greater its elastic force. When the rolled ceramic wheel 303 rolls in the weld of the welding path, according to the different positions of the welding path, such as spiral welding paths, the rotating connecting ring 203 can be raised and lowered and rotated to adapt the position of the rolled ceramic wheel 303, and the rolling adaptation wheel frame 302 can rotate on the rolling connecting frame 301, and the rolling connecting frame 301 rotates on the rotating connecting ring 203 to adapt the weld, and multi-axis rotation adaptation can be achieved. The electric heating ring 304 can achieve heating to assist in softening the welding path. Combined with the thermal insulation effect of submerged arc welding itself, it can be quickly rolled and flattened as the welding is completed.

[0040] In the disclosed embodiment, the bottom fitting part 4 includes: a downward pressure spring 401 and a downward pressure adapter sheet 402, the downward pressure spring 401 is sleeved on the outside of the submerged arc welding gun 101; the end of the downward pressure spring 401 is fixedly installed at the bottom of the rotating connection ring 203; the downward pressure adapter sheet 402 is slidably sleeved on the submerged arc welding gun 101; the downward pressure spring 401 is located above the downward pressure adapter sheet 402; the downward pressure adapter sheet 402 is used for lifting and rotating on the submerged arc welding gun 101; the downward pressure adapter sheet 402 is located above the limit ring 1011; the bottom detection part 5 includes: a detection mounting plate 501, a rotating connection shaft 502 and a rotating torsion spring 503, The detection mounting plate 501 is fixedly mounted on the pressing adapter plate 402; two rotating connecting shafts 502 are fixedly mounted on the detection mounting plate 501; the two rotating connecting shafts 502 are respectively sleeved with rotating torsion springs 503; the bottom detection member 5 also includes: a swing detection shaft 504 and a resistance swing rod 5041, the two rotating connecting shafts 502 are respectively sleeved with swing detection shafts 504; the ends of the two rotating torsion springs 503 are respectively connected to the ends of the rotating connecting shafts 502, and the other ends of the two rotating torsion springs 503 are respectively fixedly mounted on the swing detection shaft 504; the bottom of the swing detection shaft 504 is an arc structure; the swing detection shaft 5 04 bottom is used for elastically fitting the weld; the tops of the two swing detection shafts 504 are respectively fixedly installed with resistance swing rods 5041, and the two resistance swing rods 5041 are respectively used for rotation and swing; the base detection component 5 is used in conjunction with the base fitting component 4, which can automatically detect the width of the second-protection welding base welding or the last submerged arc welding during the welding process, and utilizes the groove of the weld for rapid detection. It can be fitted at the junction of the edge of the weld and the groove to ensure the detection accuracy, and can timely reflect the uniformity of the weld, and can avoid the problem of inconsistent weld convexity caused by uneven welds. The detection of this structure is direct and reliable, and can be used on mobile welds Automatic detection is performed during the connection process to ensure detection accuracy. This structure can provide a more comprehensive understanding of the welding quality at the weld. The downward pressure adapter sheet 402 is used to lift and rotate on the submerged arc welding gun 101, and the downward pressure spring 401 is used to squeeze the downward pressure adapter sheet 402, and the rotating torsion spring 503 is used to elastically drive the swing detection shaft 504 to rotate and swing outward, so as to control the swing detection shaft 504 to stick to the edge of the second welding path and the junction of the groove to ensure detection accuracy. The smaller the distance between the two swing detection shafts 504, the smaller the distance in conjunction with the welding groove, the poor uniformity of the second welding here, and the small amount of welding wire, which can be accurately detected.

[0041] In the disclosed embodiment, the resistance control component 6 includes: a resistance control frame 601, a sliding rheostat body 602 and a V-shaped spring piece 603. The resistance control frame 601 is fixedly mounted on the downward pressure adapter sheet 402 by means of bolts; two sliding rheostat bodies 602 are fixedly mounted on the resistance control frame 601, and the two sliding rheostat bodies 602 are electrically connected to the wire feeding motor of the submerged arc welding machine; a V-shaped spring piece 603 is fixedly mounted between the resistance paddles of the two sliding rheostat bodies 602; the V-shaped spring piece 603 is used to elastically push the resistance paddles on the two sliding rheostat bodies 602; the resistance paddles of the two sliding rheostat bodies 602 are respectively attached to the two resistance swing bars 5041, and the resistance control component 6 can be used to cooperate with the bottoming detection component 5 to realize resistance adjustment, and the resistance can be adjusted according to the amount of welding wire at the weld, and the amount of welding wire can be adjusted. Compensation adjustment. This structure can be adjusted according to the amount of welding wire in the weld, which can further improve the welding quality and the uniformity of welding. This structure accurately detects the uniformity of the weld and then performs compensation for the wire feeding motor of the submerged arc welding machine. This is more reasonable and improves the welding quality. As the distance between the two swing detection shafts 504 becomes smaller, indicating that there is a lack of welding here, the two swing detection shafts 504 can drive the two resistance swing rods 5041 to swing outward, and cooperate with the V-shaped spring piece 603 to squeeze the variable resistance paddle of the sliding rheostat body 602. As the resistance swing rod 5041 moves, the variable resistance paddle of the sliding rheostat body 602 can slide and adjust the resistance, so as to control the resistance of the wire feeding motor of the submerged arc welding machine. The smaller the resistance, the higher the speed of the wire feeding motor of the submerged arc welding machine, which can slightly accelerate the discharge of welding wire, promote the increase of the molten pool amount here, and assist in homogenization, which is more reasonable.

[0042] Embodiment 2, on the basis of embodiment 1, the elastic cleaning device 7 comprises: a cleaning spring 701 and a cleaning sheet 7011, the cleaning spring 701 is fixedly mounted on the bottom of the roller connecting frame 301; a cleaning sheet 7011 is fixedly mounted on the bottom of the cleaning spring 701; the cleaning sheet 7011 is used to scrape off the medicine skin; the two sides of the cleaning spring 701 are inclined structures; the elastic cleaning device 7 also comprises: an air jet pipe 702, an absorption cover 703 and an absorption pipe 7031, the air jet pipe 702 is fixedly mounted on the back of the cleaning spring 701, and the air jet pipe 702 is externally connected to a jet pump; the cleaning spring 701 An absorption cover 703 is fixedly installed on 701; an absorption tube 7031 is fixedly installed on the absorption cover 703, and the absorption tube 7031 is externally connected to a suction air pump; the jet pipe 702 is used to sweep and blow the welding path, and the elastic cleaning device 7 is adopted to realize elastic cleaning of the submerged arc welding coating, and scraping cleaning can be realized. At the same time, the welding path is blown to clean it, ensuring that the rolling ceramic wheel 303 will not press impurities when rolling the welding path. The method of cleaning the coating can clean the coating first when performing multi-wire welding, ensuring that the quality of submerged arc welding will not be affected by the flux coating during subsequent welding.

[0043] The working principle of this embodiment is as follows: first, the submerged arc welding gun 101 is installed on the submerged arc welding machine frame by bolts. Before submerged arc welding, the weld is primed with two-protection welding, and then the pressure-adjusting threaded ring 201 can be rotated to squeeze the pressure-adjusting spring 202 for compression, and then the rotating connecting ring 203 is squeezed by the pressure-adjusting spring 202 to drive the roller-pressed ceramic wheel 303 to fit the weld path formed after the welding is completed. The greater the compression degree of the pressure-adjusting spring 202, the greater its elastic force. As the submerged arc welding gun 101 discharges the welding wire for welding, when the roller-pressed ceramic wheel 303 rolls in the weld of the weld path, according to the different positions of the weld path, such as a spiral weld path, the rotating connecting ring 203 can be raised and lowered and rotated to adapt to the position of the roller-pressed ceramic wheel 303, and the roller The pressure-adapting wheel frame 302 can rotate on the rolling connection frame 301, and the rolling connection frame 301 rotates on the rotating connection ring 203 to adapt the weld. By rolling the weld path with the rotation of the rolling ceramic wheel 303, the electric heating ring 304 can achieve heating during the process to assist in softening the weld path. In combination with the heat preservation effect of the submerged arc welding itself, the welding can be quickly rolled and leveled as the welding is completed; as the submerged arc welding gun 101 moves for welding, the swing detection shaft 504 slides in contact with the inside of the weld, and the downward pressure spring 401 is used to squeeze the downward pressure adapter sheet 402 downward, and the rotating torsion spring 503 elastically drives the swing detection shaft 504 to rotate and swing outward, so as to control the swing detection shaft 504 to stick to the edge of the second welding path and the groove. The junction can ensure the detection accuracy. As the welding progresses, the resistance swing rod 5041 can realize swing adjustment and adapt to the swing detection shaft 504. The two swing detection shafts 504 can be adapted according to the width of the second welding primer. During the movement of the submerged arc welding gun 101, if the distance between the two swing detection shafts 504 becomes smaller, indicating that there is a lack of welding here, the two swing detection shafts 504 can drive the two resistance swing rods 5041 to swing outward, and cooperate with the V-shaped spring piece 603 to squeeze the variable resistance paddle of the sliding rheostat body 602. The variable resistance paddle of the sliding rheostat body 602 can be attached to the resistance swing rod 5041 in real time. As the resistance swing rod 5041 moves, the variable resistance paddle of the sliding rheostat body 602 can be The resistance of the wire feed motor of the submerged arc welding machine can be controlled by adjusting the sliding rheostat. When the distance between the two swing detection shafts 504 becomes smaller, the resistance of the sliding rheostat body 602 can be controlled to decrease. The higher the speed of the wire feed motor of the submerged arc welding machine, the faster the discharge of the welding wire can be, which promotes the increase of the molten pool here. The absorption hood 703 can be used to absorb the flux and ensure the recycling of the flux. The cleaning shrapnel 701 is pressed down elastically to drive the cleaning sheet 7011 to remove the coating, and at the same time, the suction air pump connected to the absorption tube 7031 is controlled to start, and the flux is absorbed by the absorption hood 703. The jet pump connected to the jet tube 702 is started to sweep and blow the weld path, which is convenient for the rolling of the rolling ceramic wheel 303 on the rear side.

[0044] In this article, there are a few points to note:

[0045] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0046] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0047] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A submerged arc welding device for special-shaped parts, comprising a submerged arc welding gun part (1), wherein a downward pressure control part (2) is installed on the submerged arc welding gun part (1); characterized in that: The downward pressure control component (2) is used to adjust the downward pressure; a welding path rolling component (3) is installed on the downward pressure control component (2); the welding path rolling component (3) is used to roll the welding path; A bottoming fitting (4) is installed on the submerged arc welding gun part (1); the bottoming fitting (4) is located below the downward pressure control part (2); A primer detection component (5) is installed on the primer laminating component (4); the primer detection component (5) is used to detect the primer width; A resistance control component (6) is installed on the primer bonding component (4); the primer detection component (5) is used to adjust the resistance control component (6); An elastic cleaning device (7) is installed at the bottom of the welding path roller (3); the elastic cleaning device (7) is used to clean the welding path; The submerged arc welding gun part (1) comprises: a submerged arc welding gun (101) and a limiting ring (1011); the submerged arc welding gun (101) is used to be installed on a submerged arc welding machine frame by means of bolts; the limiting ring (1011) is fixedly installed at the bottom of the submerged arc welding gun (101), and the limiting ring (1011) is used to limit the bottom bonding part (4).

2. A submerged arc welding device for special-shaped parts according to claim 1, characterized in that: The submerged arc welding gun part (1) further comprises: an external thread (102) and a flux tube (103); the external thread (102) is provided on the outside of the submerged arc welding gun (101); the flux tube (103) is fixedly mounted on the submerged arc welding gun (101), and the flux tube (103) is externally connected to a flux material box.

3. A submerged arc welding device for special-shaped parts according to claim 2, characterized in that: The downward pressure control component (2) comprises: a pressure regulating threaded ring (201), a pressure regulating spring (202) and a rotating connection ring (203); the pressure regulating threaded ring (201) is threadedly connected to the external thread (102); the submerged arc welding gun (101) is sleeved with the pressure regulating spring (202), and the end of the pressure regulating spring (202) is fixedly mounted on the bottom of the pressure regulating threaded ring (201); the submerged arc welding gun (101) is slidably sleeved with the rotating connection ring (203); the pressure regulating spring (202) is located above the rotating connection ring (203); and a rotating hole is provided on the side of the rotating connection ring (203).

4. A submerged arc welding device for special-shaped parts according to claim 3, characterized in that: The welding path rolling component (3) comprises: a rolling connection frame (301), a rolling adaptation wheel frame (302), a rolling ceramic wheel (303) and an electric heating ring (304); the rolling connection frame (301) is rotatably mounted in the rotating hole on the rotating connection ring (203); the rolling connection frame (301) is rotatably mounted on the rolling connection frame (301); the rolling ceramic wheel (303) is rotatably mounted at the bottom of the rolling adaptation wheel frame (302); the outer ring of the rolling ceramic wheel (303) is an arc-shaped structure; the electric heating ring (304) is fixedly embedded inside the rolling ceramic wheel (303), and the electric heating ring (304) is externally connected to a power source; the electric heating ring (304) is used to heat and soften the welding path; and the rolling ceramic wheel (303) is used to roll in the welding seam.

5. The submerged arc welding device for special-shaped parts according to claim 3, characterized in that: The bottom fitting (4) comprises: a downward pressure spring (401) and a downward pressure adapter sheet (402); the downward pressure spring (401) is sleeved on the outside of the submerged arc welding gun (101); the end of the downward pressure spring (401) is fixedly mounted on the bottom of the rotating connection ring (203); the downward pressure adapter sheet (402) is slidably sleeved on the submerged arc welding gun (101); the downward pressure spring (401) is located above the downward pressure adapter sheet (402); the downward pressure adapter sheet (402) is used for lifting and rotating on the submerged arc welding gun (101); and the downward pressure adapter sheet (402) is located above the limiting ring (1011).

6. A submerged arc welding device for special-shaped parts according to claim 5, characterized in that: The bottoming detection component (5) comprises: a detection installation plate (501), a rotating connecting shaft (502) and a rotating torsion spring (503); the detection installation plate (501) is fixedly installed on the downward pressure adapter plate (402); two rotating connecting shafts (502) are fixedly installed on the detection installation plate (501); and the two rotating connecting shafts (502) are respectively sleeved with rotating torsion springs (503).

7. A submerged arc welding device for special-shaped parts according to claim 6, characterized in that: The bottoming detection component (5) further comprises: a swing detection shaft (504) and a resistance swing rod (5041); the two rotating connection shafts (502) are respectively sleeved with the swing detection shaft (504); the ends of the two rotating torsion springs (503) are respectively connected to the ends of the rotating connection shafts (502); the other ends of the two rotating torsion springs (503) are respectively fixedly mounted on the swing detection shaft (504); the bottom of the swing detection shaft (504) is an arc structure; the bottom of the swing detection shaft (504) is used for elastically fitting the weld; the tops of the two swing detection shafts (504) are respectively fixedly mounted with resistance swing rods (5041), and the two resistance swing rods (5041) are respectively used for rotation and swinging.

8. The submerged arc welding device for special-shaped parts according to claim 7, characterized in that: The resistance control component (6) comprises: a resistance control frame (601), a sliding rheostat body (602) and a V-shaped spring sheet (603); the resistance control frame (601) is fixedly mounted on the downward pressure adapter sheet (402) by means of bolts; two sliding rheostat bodies (602) are fixedly mounted on the resistance control frame (601); the two sliding rheostat bodies (602) are electrically connected to the wire feeding motor of the submerged arc welding machine; a V-shaped spring sheet (603) is fixedly mounted between the resistance paddles of the two sliding rheostat bodies (602); the V-shaped spring sheet (603) is used to elastically push the resistance paddles on the two sliding rheostat bodies (602); and the resistance paddles of the two sliding rheostat bodies (602) are respectively attached to two resistance swing rods (5041).

9. The submerged arc welding device for special-shaped parts according to claim 4, characterized in that: The elastic cleaning device (7) comprises: a cleaning spring (701) and a cleaning sheet (7011); the cleaning spring (701) is fixedly mounted on the bottom of the roller-pressing connecting frame (301); a cleaning sheet (7011) is fixedly mounted on the bottom of the cleaning spring (701); the cleaning sheet (7011) is used to scrape off the medicine coating; and both sides of the cleaning spring (701) are inclined structures.

10. A submerged arc welding device for special-shaped parts according to claim 9, characterized in that: The elastic cleaning device (7) further comprises: an air jet pipe (702), an absorption cover (703) and an absorption pipe (7031); the air jet pipe (702) is fixedly mounted on the back of the cleaning spring piece (701), and the air jet pipe (702) is externally connected to an air pump; the absorption cover (703) is fixedly mounted on the cleaning spring piece (701); the absorption pipe (7031) is fixedly mounted on the absorption cover (703), and the absorption pipe (7031) is externally connected to a suction air pump; the air jet pipe (702) is used for sweeping and blowing the welding path.

Images