Gas flame welding equipment suitable for special-shaped seam welding

Abstract

The invention discloses gas flame welding equipment suitable for special-shaped seam welding, which relates to the field of welding processing and comprises a fixed bottom plate, a welding base, a rotary chassis, a bottom supporting arm, a top supporting arm and a rotary mounting box. According to the gas flame welding equipment suitable for special-shaped seam welding, the design of the three welding pipes is adopted, the flame jetting direction of the side edge welding pipes can be changed, when a columnar part is welded, the two side edge welding pipes and the center welding pipe are made to conduct flame welding on the part in three directions, and the welding efficiency is improved. The flame jetting angles of the two side edge welding pipes are changed, so that welding flames can make contact with the deeper included angle special-shaped seam, air is conveyed to the air jetting head to be jetted out to cover the flames in one direction, the jetted air forms an air wall to block the flames in one direction, and therefore the welding efficiency is improved. And the positions where the jet flames of the side edge welding pipe can reach are increased, and the problem of flame sputtering is solved through air covering.

Description

Technical Field

[0001] The invention relates to the field of welding processing, and in particular to a gas flame welding device suitable for special-shaped seam welding. Background Art

[0002] Gas flame welding equipment suitable for special-shaped seam welding is a kind of welding equipment specially used for welding special-shaped gaps. It mainly uses high-temperature spray of gas flame welding to weld the special-shaped gaps of the workpiece. It is widely used in various metal workpiece processing occasions. The Chinese patent with the publication number "CN112536501A" discloses "a gas flame welding device, comprising a mounting base, a No. 1 working column, a support panel and a special-shaped seam welding storage box, wherein a No. 2 working table is mounted on the top of the mounting base through a No. 1 slide rail". Although it can achieve the effect of "the present invention is provided with a series of components so that the device can more conveniently weld special-shaped seams, and weld special-shaped seams more comprehensively, thereby improving the accuracy of welding", the welding device is manually moved when in use. With the development of welding processing technology, in order to pursue welding accuracy, mechanical movement is usually used for welding, and there is no manual movement. The error problem caused by welding is that in the existing welding equipment, the welding pipe is a fixed structure and can only change the welding position angle as the equipment moves as a whole. When welding a columnar workpiece, the fixed welding pipe has a small welding area and cannot fully weld the columnar workpiece, which reduces the flame welding efficiency of the columnar workpiece. After the welding position is adjusted, the welding angle cannot be adjusted. When welding special-shaped seams with deeper angles, the flame will not be able to contact the position properly. At the same time, the flame spray distance for welding special-shaped seams with deeper angles will also increase. The increased flame spray distance will lead to flame sputtering problems, and the flame positioning is not concentrated enough, which also reduces the accuracy of special-shaped seam welding. Summary of the invention

[0003] The main purpose of the present invention is to provide a gas flame welding device suitable for special-shaped seam welding, which can effectively solve the technical problems raised by the background technology.

[0004] To achieve the above object, the technical solution adopted by the present invention is: A gas flame welding device suitable for welding special-shaped seams comprises a fixed base plate, a welding base, a rotating base, a bottom support arm, a top support arm and a rotating mounting box, wherein the welding base is fixedly mounted on the upper end of the fixed base plate, the rotating base is fixedly mounted on the upper end of the welding base, the bottom support arm is welded to the upper end of the rotating base, the top support arm is movably mounted on the upper end of the bottom support arm, the rotating mounting box is movably mounted on the upper end of the top support arm, a telescopic mounting box is movably mounted on the front end of the rotating mounting box, a rotating mounting head is movably mounted on the front end of the telescopic mounting box, a mounting plate is fixedly mounted on the front end of the rotating mounting head, and welding plates are welded on the upper and lower ends of the front end of the mounting plate. A connecting pipe installation tube, a center mounting seat is fixedly installed at the front end of the welding pipe mounting pipe, a center butt joint is fixedly installed at the front end of the center mounting seat, a center welding pipe is fixedly installed at the front end of the center butt joint, a rotation driving structure is arranged on both sides of the front end of the mounting plate, two fixed sleeves are fixedly installed on the outer side of the rotation driving structure, a telescopic tube is movably installed at one end of the fixed sleeve, a side mounting seat is fixedly installed at the end of the telescopic tube away from the fixed sleeve, a side butt joint is fixedly installed at the front end of the side mounting seat, a side welding pipe is fixedly installed at the front end of the side butt joint, and auxiliary jet structures are fixedly installed on the outer sides of the center butt joint and the side butt joints.

[0005] As a further solution of the present invention, a workbench base is fixedly installed on the upper end of the fixed base plate in front of the welding base, and a welding workbench is movably installed on the central top of the workbench base.

[0006] As a further solution of the present invention, the rotating mounting head is located inside the telescopic mounting box and protrudes to the front end, and the rotating mounting head rotates around the inside of the telescopic mounting box.

[0007] As a further solution of the present invention, the rotary drive structure includes a driving motor, a driving gear, a rotary mounting rod and a synchronous gear. The driving motor is fixedly mounted inside the rotary mounting head, the driving gear is fixedly mounted at the front end of the rotating shaft of the driving motor, the two rotary mounting rods are movably mounted on both sides of the front end of the mounting plate, and the two synchronous gears are fixedly sleeved on the outside of the two rotary mounting rods.

[0008] As a further solution of the present invention, the shaft of the driving gear passes forward through the mounting plate and is fixedly connected to a rotating mounting rod on one side, the front end of the rotating mounting rod is movably connected to the central mounting seat, and the two synchronous gears are meshedly connected.

[0009] As a further solution of the present invention, the fixed sleeve is fixedly installed on the outside of the rotating installation rod, the rotating installation rods on both sides are symmetrically installed, the telescopic tube is inserted into the fixed sleeve for telescopic movement, and the telescopic tube and the fixed sleeve are both arranged in an arc shape and kept concentrically arranged.

[0010] As a further solution of the present invention, the welding workbench is located below the side welding tube and the central welding tube, and the two side welding tubes are located on both sides of the central welding tube.

[0011] As a further solution of the present invention, the auxiliary jet structure includes a mounting ring, a sliding adjustment block, an air guide pipe and an air jet head. The multiple mounting rings are respectively fixedly sleeved on the outside of the center butt joint and the side butt joint, the sliding adjustment block is movably installed on the outside of the mounting ring, the air guide pipe is fixedly installed at the front end of the sliding adjustment block, and the air jet head is movably installed at the front end of the air guide pipe.

[0012] As a further solution of the present invention, the sliding adjustment block slides around the mounting ring and is locked in place by screws, and the air jet head is located outside the side welding pipe and the center welding pipe.

[0013] As a further solution of the present invention, a solenoid valve is fixedly installed on the upper end of the telescopic installation box, and an air pipe is installed between the solenoid valve, the fixed sleeve and the sliding adjustment block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: a three-welding tube design is adopted to increase welding efficiency, and the flame spraying direction of the side welding tube can be changed. When welding columnar parts, two side welding tubes and the center welding tube are used to flame weld the parts in three directions, thereby increasing the flame welding efficiency of columnar workpieces and making it more convenient to weld special-shaped seams on columnar workpieces; When the flame spraying angle needs to be changed, the fixed sleeves on both sides can be driven to rotate by the operation of the driving motor, thereby changing the flame spraying angle of the two side welding pipes, spraying the flame from the top and bottom, so that the welding flame can contact the deeper angle special-shaped seams, further facilitating the use of welding different special-shaped seams; When welding more complicated special-shaped seams, air is delivered to the nozzle and sprayed out to cover one direction of the flame. Therefore, when the flame is sprayed on the workpiece, the sprayed air forms an air wall to block the flame in one direction, so that the flame on the workpiece can only be sprayed in the opposite direction, so that the flame changes its angle along the air, and the position that the side welding pipe spray flame can reach is increased to cooperate with more complicated special-shaped seam welding. The air coverage can prevent the problem of flame spattering, and also play the effect of flame suppression positioning, thereby reducing the error caused by special-shaped seam welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a gas flame welding device suitable for welding special-shaped seams according to the present invention; Figure 2 It is a partial structural diagram of the extension of the telescopic tube in a gas flame welding device suitable for welding special-shaped seams of the present invention; Figure 3 It is a partial cross-sectional view of a rotary mounting head in a gas flame welding device suitable for welding special-shaped seams of the present invention; Figure 4 It is an enlarged view of a central mounting seat in a gas flame welding device suitable for welding special-shaped seams of the present invention; Figure 5 It is an enlarged view of the auxiliary jet structure in a gas flame welding device suitable for welding special-shaped seams of the present invention; Figure 6 The present invention is a partial structural diagram of a fixed sleeve rotation in a gas flame welding device suitable for special-shaped seam welding.

[0016] In the figure: 1. fixed bottom plate; 2. workbench base; 3. welding workbench; 4. welding base; 5. rotating chassis; 6. bottom support arm; 7. top support arm; 8. rotating mounting box; 9. telescopic mounting box; 10. solenoid valve; 11. rotating mounting head; 12. mounting plate; 13. welding pipe mounting pipe; 14. center mounting seat; 15. center butt joint; 16. center welding pipe; 17. rotating drive structure; 18. driving motor; 19. driving gear; 20. rotating mounting rod; 21. synchronous gear; 22. fixed sleeve; 23. telescopic tube; 24. side mounting seat; 25. side butt joint; 26. side welding pipe; 27. auxiliary jet structure; 28. mounting ring; 29. ​​sliding adjustment block; 30. air guide pipe; 31. jet head. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] like Figure 1-Figure 6As shown, a gas flame welding device suitable for welding special-shaped seams comprises a fixed base plate 1, a welding base 4, a rotating chassis 5, a bottom support arm 6, a top support arm 7 and a rotating mounting box 8, wherein the welding base 4 is fixedly mounted on the upper end of the fixed base plate 1, the rotating chassis 5 is fixedly mounted on the upper end of the welding base 4, the bottom support arm 6 is welded to the upper end of the rotating chassis 5, the top support arm 7 is movably mounted on the upper end of the bottom support arm 6, the rotating mounting box 8 is movably mounted on the upper end of the top support arm 7, a telescopic mounting box 9 is movably mounted on the front end of the rotating mounting box 8, a rotating mounting head 11 is movably mounted in front of the telescopic mounting box 9, a mounting plate 12 is fixedly mounted on the front end of the rotating mounting head 11, a welding pipe mounting tube 13 is welded on the upper and lower ends of the front end of the mounting plate 12, a center mounting seat 14 is fixedly mounted on the front end of the welding pipe mounting tube 13, and a center mounting seat 14 is fixedly mounted on the front end of the center mounting seat 14. A center butt joint 15 is fixedly installed at the front end, a center welding pipe 16 is fixedly installed at the front end of the center butt joint 15, a rotation drive structure 17 is arranged on both sides of the front end of the mounting plate 12, two fixed sleeves 22 are fixedly installed on the outer side of the rotation drive structure 17, a telescopic tube 23 is movably installed at one end of the fixed sleeve 22, a side mounting seat 24 is fixedly installed at the end of the telescopic tube 23 away from the fixed sleeve 22, a side butt joint 25 is fixedly installed at the front end of the side mounting seat 24, a side welding pipe 26 is fixedly installed at the front end of the side butt joint 25, auxiliary jet structures 27 are fixedly installed on the outer sides of the center butt joint 15 and the side butt joint 25, the rotating chassis 5 is a self-rotating structure, a motor is installed on the bottom support arm 6 to drive the top support arm 7 to rotate, and a motor is installed on the top support arm 7 to drive the rotating installation box 8 to rotate, so as to achieve the effect of adjusting the welding position.

[0019] In this embodiment, a workbench base 2 is fixedly installed on the upper end of the fixed base plate 1 in front of the welding base 4, and a welding workbench 3 is movably installed on the central top of the workbench base 2, and the welding workbench 3 serves the effect of placing welding workpieces.

[0020] In this embodiment, the rotating mounting head 11 is located on the inner side of the telescopic mounting box 9 and protrudes to the front end. The rotating mounting head 11 rotates around the inner side of the telescopic mounting box 9. The rotating mounting head 11 is driven by a motor installed in the telescopic mounting box 9 to rotate, thereby achieving the effect of overall adjustment of the welding angle.

[0021] In this embodiment, the rotation driving structure 17 includes a driving motor 18, a driving gear 19, a rotation mounting rod 20 and a synchronous gear 21. The driving motor 18 is fixedly mounted inside the rotation mounting head 11, the driving gear 19 is fixedly mounted at the front end of the rotating shaft of the driving motor 18, the two rotation mounting rods 20 are movably mounted on both sides of the front end of the mounting plate 12, and the two synchronous gears 21 are fixedly sleeved on the outside of the two rotation mounting rods 20 respectively.

[0022] In this embodiment, the shaft of the driving gear 19 passes forward through the mounting plate 12 and is fixedly connected to the rotating mounting rod 20 on one side. The front end of the rotating mounting rod 20 is movably connected to the central mounting seat 14. The two synchronous gears 21 are meshed and connected. The driving motor 18 drives the rotating mounting rod 20 to rotate through the driving gear 19. The two rotating mounting rods 20 rotate synchronously and oppositely through the transmission of the synchronous gear 21.

[0023] In this embodiment, the fixed sleeve 22 is fixedly installed on the outside of the rotating installation rod 20, and the rotating installation rods 20 on both sides are symmetrically arranged. The telescopic tube 23 is inserted into the fixed sleeve 22 for telescopic movement. The telescopic tube 23 and the fixed sleeve 22 are both arranged in an arc shape and kept concentrically arranged. The telescopic tube 23 and the fixed sleeve 22 use the arc structure to keep the directional position of the end of the side welding tube 26 unchanged during telescoping.

[0024] In this embodiment, the welding workbench 3 is located below the side welding tube 26 and the center welding tube 16. The two side welding tubes 26 are located on both sides of the center welding tube 16. The two side welding tubes 26 and the center welding tube 16 perform flame spraying toward the same position.

[0025] In this embodiment, the auxiliary jet structure 27 includes a mounting ring 28, a sliding adjustment block 29, an air duct 30 and an air jet head 31. The plurality of mounting rings 28 are fixedly sleeved on the outer sides of the center docking joint 15 and the side docking joint 25, respectively. The sliding adjustment block 29 is movably mounted on the outer sides of the mounting rings 28. The air duct 30 is fixedly mounted on the front end of the sliding adjustment block 29. The air jet head 31 is movably mounted on the front end of the air duct 30. The air duct 30 is used to transport air to the air jet head 31.

[0026] In this embodiment, the sliding adjustment block 29 slides around the mounting ring 28 and is locked in place by screws. The air nozzle 31 is located on the outside of the side welding tube 26 and the center welding tube 16. The sliding adjustment block 29 adjusts the position of the air guide tube 30 by sliding, and the air guide tube 30 sprays air toward the side welding tube 26 and the center welding tube 16.

[0027] In this embodiment, a solenoid valve 10 is fixedly mounted on the upper end of the telescopic mounting box 9, and an air pipe is installed between the solenoid valve 10, the fixed sleeve 22 and the sliding adjustment block 29. The solenoid valve 10 is used to control the output of air.

[0028] It should be noted that the present invention is a gas flame welding device suitable for welding of special-shaped seams. When in use, the fixed bottom plate 1 plays a role of placing and fixing. The workpiece to be welded is placed and fixed above the welding workbench 3. Then, the joints on the center mounting seat 14 and the side mounting seat 24 are connected to the fuel pipeline, so that the fuel is transported to the side welding pipe 26 and the center welding pipe 16. Then, the side welding pipe 26 and the center welding pipe 16 are ignited and sprayed with flames. The flames sprayed by the side welding pipe 26 and the center welding pipe 16 are used to weld the workpiece on the welding workbench 3. In addition, the rotation of the rotating chassis 5, the rotation of the bottom support arm 6 and the rotating mounting box 8 are coordinated to change the welding positions of the side welding pipe 26 and the center welding pipe 16, so as to cooperate with the welding of different positions of the workpiece and special-shaped seams. When the flame spraying direction needs to be changed, the solenoid valve 10 is connected to the input air pipe, and the solenoid valve 10 inputs air into the fixed sleeve 22 through the air pipe, so that the air squeezes the telescopic tube 23 in the fixed sleeve 22, so that the telescopic tube 23 extends out of the fixed sleeve 22. After the telescopic tube 23 extends, it drives the side mounting seats 24 on both sides to move, and changes the flame spraying direction of the side welding tube 26. When welding columnar parts, the two side welding tubes 26 and the center welding tube 16 perform flame welding on the parts in three directions, thereby increasing the flame welding efficiency of the workpiece; When the flame spraying angle needs to be changed, the driving motor 18 is used to drive the driving gear 19 to rotate, and the shaft of the driving gear 19 drives the rotating mounting rod 20 on one side to rotate. When the rotating mounting rod 20 on one side rotates, the two synchronous gears 21 are meshed and connected to drive the rotating mounting rods 20 on both sides to rotate at the same time. Therefore, the rotating mounting rod 20 drives the fixed sleeves 22 on both sides to rotate, thereby changing the flame spraying angle of the two side welding pipes 26, and spraying the flame from the top and bottom, so that the welding flame can contact the deeper angle special-shaped seam; When welding more complicated special-shaped seams, the solenoid valve 10 is used to input air into the sliding adjustment block 29 through the air pipe, and the sliding adjustment block 29 then transports the air to the nozzle 31 through the air guide pipe 30 for spraying. The nozzle 31 sprays the air at an angle on the outside of the flames sprayed from the side welding tube 26 and the center welding tube 16 to cover one direction of the flame. Therefore, when the flame is sprayed on the workpiece, the sprayed air forms an air wall to block the flame in one direction, so that the flame on the workpiece can only be sprayed in the opposite direction and the depth of the spray is increased, so that the flame changes its angle along the air, and increases the position that the flame sprayed from the side welding tube 26 can reach, so as to cooperate with more complicated special-shaped seam welding, and the air coverage is used to prevent the problem of flame sputtering, and also has the effect of flame suppression positioning, thereby reducing the error generated during special-shaped seam welding.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A gas flame welding device suitable for welding special-shaped seams, comprising a fixed base plate (1), a welding base (4), a rotating chassis (5), a bottom support arm (6), a top support arm (7) and a rotating mounting box (8), wherein the welding base (4) is fixedly mounted on the upper end of the fixed base plate (1), the rotating chassis (5) is fixedly mounted on the upper end of the welding base (4), the bottom support arm (6) is welded to the upper end of the rotating chassis (5), the top support arm (7) is movably mounted on the upper end of the bottom support arm (6), and the rotating mounting box (8) is movably mounted on the upper end of the top support arm (7), characterized in that: A telescopic mounting box (9) is movably mounted on the front end of the rotating mounting box (8); a rotating mounting head (11) is movably mounted in front of the telescopic mounting box (9); a mounting plate (12) is fixedly mounted on the front end of the rotating mounting head (11); a welding pipe mounting tube (13) is welded to the upper and lower ends of the front end of the mounting plate (12); a center mounting seat (14) is fixedly mounted on the front end of the welding pipe mounting tube (13); a center butt joint (15) is fixedly mounted on the front end of the center butt joint (15); a center welding pipe (16) is fixedly mounted on the front end of the mounting plate (12); A rotary drive structure (17) is provided on both sides of the front end of the rotary drive structure (17), two fixed sleeves (22) are fixedly installed on the outer side of the rotary drive structure (17), a telescopic tube (23) is movably installed on one end of the fixed sleeve (22), a side mounting seat (24) is fixedly installed on one end of the telescopic tube (23) away from the fixed sleeve (22), a side butt joint (25) is fixedly installed on the front end of the side butt joint (24), a side welding tube (26) is fixedly installed on the front end of the side butt joint (25), and auxiliary jet structures (27) are fixedly installed on the outer sides of the central butt joint (15) and the side butt joint (25).

2. A gas flame welding device suitable for special-shaped seam welding according to claim 1, characterized in that: The upper end of the fixed base plate (1) is located in front of the welding base (4), and a workbench base (2) is fixedly mounted thereon; a welding workbench (3) is movably mounted on the central top of the workbench base (2).

3. A gas flame welding device suitable for special-shaped seam welding according to claim 1, characterized in that: The rotating mounting head (11) is located on the inner side of the telescopic mounting box (9) and protrudes to the front end. The rotating mounting head (11) rotates around the inner side of the telescopic mounting box (9).

4. The gas flame welding equipment suitable for special-shaped seam welding according to claim 1, characterized in that: The rotary drive structure (17) comprises a drive motor (18), a drive gear (19), a rotary mounting rod (20) and a synchronous gear (21); the drive motor (18) is fixedly mounted inside the rotary mounting head (11); the drive gear (19) is fixedly mounted at the front end of the rotating shaft of the drive motor (18); the two rotary mounting rods (20) are movably mounted at both sides of the front end of the mounting plate (12); and the two synchronous gears (21) are fixedly sleeved on the outside of the two rotary mounting rods (20), respectively.

5. A gas flame welding device suitable for special-shaped seam welding according to claim 4, characterized in that: The shaft of the driving gear (19) passes through the mounting plate (12) forward and is fixedly connected to a rotating mounting rod (20) on one side. The front end of the rotating mounting rod (20) is movably connected to the central mounting seat (14), and the two synchronous gears (21) are meshed and connected.

6. The gas flame welding equipment suitable for special-shaped seam welding according to claim 1, characterized in that: The fixed sleeve (22) is fixedly mounted on the outside of the rotating mounting rod (20), the rotating mounting rods (20) on both sides are symmetrically arranged and mounted, the telescopic tube (23) is inserted into the fixed sleeve (22) to telescope, and the telescopic tube (23) and the fixed sleeve (22) are both arranged in an arc shape and are kept concentrically arranged.

7. The gas flame welding equipment suitable for special-shaped seam welding according to claim 2, characterized in that: The welding workbench (3) is located below the side welding tube (26) and the center welding tube (16), and the two side welding tubes (26) are located on both sides of the center welding tube (16).

8. The gas flame welding equipment suitable for special-shaped seam welding according to claim 1, characterized in that: The auxiliary jet structure (27) comprises a mounting ring (28), a sliding adjustment block (29), an air guide pipe (30) and an air jet head (31). The mounting rings (28) are respectively fixedly sleeved on the outer sides of the central butt joint (15) and the side butt joint (25). The sliding adjustment block (29) is movably mounted on the outer sides of the mounting rings (28). The air guide pipe (30) is fixedly mounted on the front end of the sliding adjustment block (29). The air jet head (31) is movably mounted on the front end of the air guide pipe (30).

9. The gas flame welding equipment suitable for special-shaped seam welding according to claim 8, characterized in that: The sliding adjustment block (29) slides around the mounting ring (28) and is locked in place by screws. The air jet head (31) is located outside the side welding tube (26) and the center welding tube (16).

10. A gas flame welding device suitable for special-shaped seam welding according to claim 9, characterized in that: A solenoid valve (10) is fixedly mounted on the upper end of the telescopic mounting box (9), and an air pipe is installed between the solenoid valve (10), the fixed sleeve (22) and the sliding adjustment block (29).

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