Electric arc welding equipment

Abstract

The invention relates to the technical field of electric arc welding forming, in particular to electric arc welding equipment. Comprising two fixing seats which are symmetrical front and back; first electric sliding rails are fixedly mounted at the upper ends of the fixing seats, moving seats are slidably mounted on the first electric sliding rails, an inverted-U-shaped frame is fixedly mounted on the two moving seats jointly, a welding mechanism is arranged on the inverted-U-shaped frame, and a fixing mechanism is arranged between the two fixing seats. According to the welding mechanism, four welding seams are welded at the same time through the four welding assemblies, operation of overturning, fixing, fixing releasing and position adjusting is not needed, the overall efficiency of box column welding machining is effectively improved, in addition, the welding mechanism can drive the corresponding base to overturn in the moving process, it is guaranteed that the welding mechanism continuously moves for welding machining, and the welding efficiency is improved. And the rectangular frame and the rectangular plate are fixed and supported by the fixing parts and the lifting parts on the other bases, so that the overall stability of the rectangular frame and the rectangular plate is guaranteed, and the welding forming quality of the box column is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of arc welding forming, and particularly relates to an arc welding device. Background Art

[0002] Arc welding is a welding method that uses an electric arc as a heat source to melt metal and achieve connection. It heats the electrode or wire and the workpiece to a molten state through a high-temperature electric arc generated between them. The molten metal will mix together and form a strong joint after cooling.

[0003] The welding and forming of box columns often adopt the arc welding method. During welding, usually a rectangular frame structure is first welded and formed, and several partitions are evenly welded inside the rectangular frame. Then, two rectangular plates are welded to enclose the rectangular frame. The welding of the rectangular plates usually first fixes a single rectangular plate and the rectangular frame through a fixing fixture, and then the welding assembly moves to weld and process the two weld seams between the rectangular plate and the rectangular frame. After welding is completed, the fixation is released, and then the welded rectangular frame and rectangular plate are flipped 180 degrees and fixed again, and then welding and processing are carried out again to complete the welding and forming of the box column.

[0004] However, there are the following problems in the welding process of the two rectangular plates at present: The two rectangular plates need to be welded twice. Between the two welding operations, at least two fixing and releasing operations are required. Moreover, due to the large volume and weight of the rectangular frame, the operation of flipping the rectangular frame takes a certain amount of time and material resources. At the same time, the position of the rectangular frame needs to be adjusted before each formal fixation to ensure accurate position. In this way, the complexity and time cost of the overall process of box column welding and forming are both increased, and the overall efficiency of box column welding and processing is relatively low. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present invention provide an arc welding device to solve the above-mentioned technical problems.

[0006] To achieve the above object, the embodiments of the present invention provide the following technical solutions: The embodiments of the present invention provide an arc welding device, including two fixed seats that are symmetric front and back; a first electric slide rail is fixedly installed at the upper end of each fixed seat, a moving seat is slidably installed on each first electric slide rail, an inverted U-shaped frame is fixedly installed on the two moving seats together, a welding mechanism is arranged on the inverted U-shaped frame, and a fixing mechanism is arranged between the two fixed seats.

[0007] The described fixing mechanism includes an inverted T-shaped seat. An inverted T-shaped seat is fixedly installed between two fixing seats. At the upper end of the vertical section of the inverted T-shaped seat, two symmetrically arranged shaft plates are fixedly installed front and back. Between the two shaft plates, a plurality of bases are evenly arranged from left to right. At the left end of the leftmost base, a positioning plate is fixedly installed. At the front and rear ends of the base, torsion spring rods rotatably connected to the corresponding shaft plates are fixedly installed. A reset assembly is arranged between the base, the shaft plate and the inverted T-shaped seat. A chute is opened at the upper end of the base. A supporting seat is slidably installed up and down in the chute. An elevating part for driving the corresponding supporting seat to move up and down and a pushing part for fitting and fixing the rectangular plate and the rectangular frame are arranged on the base.

[0008] The welding equipment further includes a pushing part, which is used to cooperate with the movement of the welding mechanism to drive the adjacent bases to rotate in turn to avoid interfering with the continuous movement of the welding mechanism; a fixing part for fixing the base in cooperation with the shaft plate is arranged on the elevating part.

[0009] As a preferred solution, the reset assembly includes arc-shaped grooves. Arc-shaped grooves are opened at the upper end of the vertical section of the inverted T-shaped seat at positions corresponding to the bases one by one. The torsion spring rods are located above the arc-shaped grooves. The lower end surface of the base is convex arc-shaped and abuts against the inner arc wall of the arc-shaped groove. The left end of the base abuts against the left vertical inner wall of the arc-shaped groove. At the front and rear ends of the left vertical inner wall of the arc-shaped groove, notch openings communicating with the arc-shaped groove are symmetrically opened. Pulling springs are fixedly installed in the notch openings. The other ends of the pulling springs are fixedly connected to the left end of the corresponding base. Circular grooves are opened at positions corresponding to the bases on the opposite surfaces of the two shaft plates. Ball bearings are slidably installed in the circular grooves through compression springs. Grooves for cooperating with the ball bearings are opened at the front and rear ends of the base.

[0010] As a preferred solution, the welding mechanism includes a second electric slide rail. Two second electric slide rails are symmetrically fixedly installed at the lower end of the horizontal section of the inverted U-shaped frame front and back. Support plates are slidably installed at the lower ends of the second electric slide rails. Fixed plates are fixedly installed on the opposite surfaces of the two support plates. Welding assemblies are symmetrically fixedly installed up and down on the opposite surfaces of the two fixed plates. Pressure rollers are rotatably installed between the two welding assemblies on the opposite surfaces of the two fixed plates through shaft seats. A connecting part is jointly arranged on the two fixed plates.

[0011] As a preferred solution, the elevating part includes guiding grooves. Guiding grooves are symmetrically opened at the front and back of the supporting seat. The guiding grooves are composed of a horizontal section and an inclined section that slopes upward from the lower part to the side away from the center of the supporting seat. The horizontal section is arranged close to the center of the supporting seat. Waist-shaped grooves corresponding to the guiding grooves are opened at the left and right ends of the base. A support column is slidably installed jointly in the two waist-shaped grooves that are directly opposite left and right, and the support column slidably penetrates through the corresponding guiding groove. An actuator for driving the support column to move is arranged on the base.

[0012] As a preferred solution, the actuator includes a sliding plate. The right ends of the support columns are fixedly installed with sliding plates, and the sliding plates are slidably installed on the right end face of the base. Connecting plates are fixedly installed on the opposite faces of the two sliding plates on the same base. A double-acting hydraulic cylinder is fixedly installed below the sliding plates at the right end of the base, and the two telescopic sections of the double-acting hydraulic cylinder are respectively fixedly connected to the two connecting plates.

[0013] As a preferred solution, the pushing part includes a sliding seat. The left end of the connecting plate is fixedly installed with a sliding seat. The sliding seat is slidably installed on the upper end of the base. Pushing plates are fixedly installed on the upper end faces of the sliding seats, and the pushing plates are in an inverted L-shaped structure.

[0014] As a preferred solution, the pressing part includes connecting plates. Connecting plates are fixedly installed on the opposite faces of the two support plates. Roller shafts that are symmetric about the fixed plate are rotatably installed on the opposite faces of the two connecting plates.

[0015] As a preferred solution, the connecting part includes limiting plates. Four limiting plates distributed in a rectangle are fixedly installed on the front end face of the rear fixed plate. The front ends of the limiting plates slidably penetrate through the front fixed plate. A limiting component for restricting the movement of the limiting plates is arranged on the support plate.

[0016] As a preferred solution, the fixing part includes limiting columns. Limiting columns are fixedly installed on the opposite faces of the two connecting plates on the same base. The ends of the limiting columns far away from the corresponding connecting plates slidably penetrate through the opposite connecting plates and the shaft plates.

[0017] As a preferred solution, the limiting component includes a double-acting cylinder. A double-acting cylinder is fixedly installed on the front end face of the front support plate. Push-pull plates are fixedly installed on the two telescopic sections of the double-acting cylinder. Plug rods that slidably penetrate through the limiting plates are fixedly installed on the opposite ends of the two push-pull plates.

[0018] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects: First, the welding mechanism in the present invention welds four weld seams simultaneously through four welding components, without the need to perform operations such as flipping, fixing and releasing fixing, and adjusting positions, which simplifies the steps and effectively improves the overall efficiency of the welding process of the box column. Secondly, through the fixing of the rectangular frame by the fixing mechanism and the rolling of the rectangular plate by the pressing roller, the fitting degree of the rectangular plate and the rectangular frame is ensured, thereby improving the welding quality of the box column. In addition, during the movement of the welding mechanism, it will drive the corresponding base to flip, ensuring continuous movement and welding of the welding mechanism, while the fixing parts and lifting parts on the remaining bases maintain the fixing and support of the rectangular frame and the rectangular plate, thereby ensuring the overall stability of the rectangular frame and the rectangular plate and improving the quality of the welded box column.

[0019] Second, the welding mechanism provided by the present invention welds four weld seams simultaneously through four welding components distributed in a rectangle, thus eliminating the disassembly, installation, and turning operations during the welding process of the box column, thereby improving the overall efficiency of the box column welding process. Moreover, the two limiting plates are mutually limited and connected through the limiting part to improve the stability during the moving welding process of the welding components, thereby improving the welding quality of the box column.

[0020] Third, the fixing part of the present invention drives two sliding plates to move through a bidirectional hydraulic cylinder, so as to drive the supporting seat to move upward to support the box column through the cooperation of the supporting column and the guiding groove, then drive the pushing plate to extrude and fix the box column, and drive the limiting column to insert into the corresponding shaft plate, integrally and coherently implementing support and fixed limitation to improve the stability of the base, and also facilitating the improvement of the overall operation efficiency.

[0021] Fourth, when the welding mechanism of the present invention moves close to the corresponding fixing mechanism, first drive the supporting seat and the pushing plate away from the box column through the rear bidirectional hydraulic cylinder, and then drive the base to rotate through the movement of the welding mechanism to avoid interfering with the continuous moving welding of the welding mechanism, while the fixing part and the lifting part on the remaining bases maintain the fixing and support of the box body, thereby further improving the welding efficiency and welding quality of the box column.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the fixing mechanism of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the pushing part of the present invention.

[0027] Figure 4 It is a structural schematic diagram of the connecting part of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the lifting part of the present invention.

[0029] Figure 6 Partial structural sectional view of the lifting part of the present invention.

[0030] Reference numerals: 10, fixed seat; 11, first electric slide rail; 12, inverted U-shaped frame; 2, fixing mechanism; 20, inverted T-shaped seat; 21, shaft plate; 22, base; 23, torsion spring rod; 24, supporting seat; 70, positioning plate; 71, arc-shaped groove; 72, tension spring; 73, ball; 25, lifting part; 250, guiding groove; 251, waist-shaped groove; 252, support column; 4, actuator; 40, sliding plate; 41, connecting plate; 42, double-acting hydraulic cylinder; 26, pushing part; 260, sliding seat; 261, pushing plate; 3, welding mechanism; 30, second electric slide rail; 31, support plate; 32, fixing plate; 320, pressing roller; 34, welding assembly; 35, connecting part; 350, limiting plate; 351, double-acting cylinder; 352, pushing and pulling plate; 353, inserting rod; 5, pushing part; 50, roller shaft; 6, fixing part; 60, limiting column. Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] As Figure 1 shown in the figure, an arc welding device includes two fixed seats 10 that are symmetrically arranged front and back; first electric slide rails 11 are fixedly installed at the upper ends of the fixed seats 10, and moving seats are slidably installed on the first electric slide rails 11. An inverted U-shaped frame 12 is fixedly installed on the two moving seats together, a welding mechanism 3 is arranged on the inverted U-shaped frame 12, and a fixing mechanism 2 is arranged between the two fixed seats 10.

[0033] As Figure 1 、 Figure 2 and Figure 3As shown, the fixing mechanism 2 includes an inverted T-shaped seat 20. The inverted T-shaped seat 20 is fixedly installed between two fixing seats 10. At the upper end of the vertical section of the inverted T-shaped seat 20, two symmetrically arranged front and rear shaft plates 21 are fixedly installed. Between the two shaft plates 21, a plurality of base seats 22 are evenly arranged from left to right. At the left end of the leftmost base seat 22, a positioning plate 70 is fixedly installed. At the front and rear ends of the base seat 22, torsion spring rods 23 rotatably connected to the corresponding shaft plates 21 are fixedly installed. A reset assembly is arranged between the base seat 22, the shaft plate 21 and the inverted T-shaped seat 20. A chute is formed at the upper end of the base seat 22, and a supporting seat 24 is slidably installed up and down in the chute. An elevating part 25 for driving the corresponding supporting seat 24 to move up and down and a squeezing part 26 for fitting and fixing the rectangular plate part and the rectangular frame part of the box-shaped body are arranged on the base seat 22.

[0034] As Figure 1 , Figure 2 and Figure 4 shown, the welding mechanism 3 includes a second electric slide rail 30. At the lower end of the horizontal section of the inverted U-shaped frame 12, two second electric slide rails 30 are symmetrically fixedly installed front and rear. At the lower ends of the second electric slide rails 30, support plates 31 are slidably installed. On the opposite surfaces of the two support plates 31, fixing plates 32 are fixedly installed. On the opposite surfaces of the two fixing plates 32, welding assemblies 34 are symmetrically fixedly installed up and down. On the opposite surfaces of the two fixing plates 32 and between the two welding assemblies 34, pressure rollers 320 are rotatably installed through shaft seats. A connecting part 35 is jointly arranged on the two fixing plates 32.

[0035] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a pushing part 5 for driving the adjacent base seats 22 to rotate in sequence to avoid interfering with the movement of the welding mechanism 3 is arranged on the support plate 31 in cooperation with the movement of the welding mechanism 3. A fixing part 6 for fixing the base seat 22 in cooperation with the shaft plate 21 is arranged on the elevating part 25. The welding mechanism 3 is used for welding four welds simultaneously.

[0036] During specific operation, the rectangular frame part welded from the box column is placed on the supporting seat 24 through an external device, and the left end of the rectangular frame part of the box body is moved to abut against the positioning plate 70 to limit the rectangular frame part of the box body. Then, the rectangular plates of the box body are sequentially placed on the front and rear sides of the rectangular frame and abut against the positioning plate 70 to align the rectangular plates with the rectangular frame. After that, the pushing part 26 is used to push the rectangular plates to fit with the rectangular frame. Then, the second electric slide rail 30 drives the fixing plates 32 to approach each other through the supporting plate 31, so that the four welding assemblies 34 move to the corresponding joint positions on the rectangular frame and the rectangular plates. At the same time, the two fixing plates 32 are connected and limited through the connecting part 35. Then, the first electric slide rail 11 drives the welding mechanism 3 to move from right to left for welding processing, and the pressing roller 320 rolls the corresponding rectangular plate along with the movement of the welding mechanism 3 to ensure the fitting degree between the rectangular plate and the rectangular frame, thereby improving the welding quality. During the movement of the welding mechanism 3, the pushing part 5 will sequentially drive the adjacent bases 22 to rotate in the moving direction of the welding mechanism 3 to avoid interfering with the continuous moving welding process of the welding mechanism 3.

[0037] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, the lifting part 25 includes a guiding groove 250. The guiding grooves 250 are symmetrically arranged on the front and rear of the supporting seat 24. The guiding groove 250 consists of a horizontal section and an inclined section that slopes upward from the lower part to the side away from the center of the supporting seat 24. The horizontal section is arranged close to the center of the supporting seat 24. Waist-shaped grooves 251 corresponding to the guiding grooves 250 are respectively opened at the left and right ends of the base 22. A support column 252 is slidably installed in the two waist-shaped grooves 251 that are directly opposite to each other left and right, and the support column 252 slidably penetrates through the corresponding guiding groove 250. An actuator 4 for driving the movement of the support column 252 is arranged on the base 22.

[0038] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, the actuator 4 includes a sliding plate 40. The right ends of the support columns 252 are fixedly installed with sliding plates 40, and the sliding plates 40 are slidably installed on the right end face of the base 22 in the front and rear directions. Connecting plates 41 are fixedly installed on the opposite sides of the two sliding plates 40 on the same base 22. A double-acting hydraulic cylinder 42 is fixedly installed at the right end of the base 22 and below the sliding plate 40. The two telescopic sections of the double-acting hydraulic cylinder 42 are respectively fixedly connected to the two connecting plates 41.

[0039] As Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the pushing part 26 includes a sliding seat 260. The left end of the connecting plate 41 is fixedly installed with a sliding seat 260. The sliding seat 260 is slidably installed on the upper end of the base 22. The upper end surfaces of the sliding seat 260 are fixedly installed with pushing plates 261, and the pushing plates 261 are in an inverted L-shaped structure.

[0040] As Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the fixing part 6 includes a limiting post 60. The opposite surfaces of the two connecting plates 41 on the same base 22 are fixedly installed with limiting posts 60. One end of the limiting post 60 away from the corresponding connecting plate 41 slidably penetrates the opposite connecting plate 41 and the shaft plate 21.

[0041] During specific operation, the double-acting hydraulic cylinder 42 pulls the corresponding two sliding plates 40 to approach each other. The sliding plates 40 drive the corresponding support columns 252 to approach each other along the waist slots 251. The support columns 252 cooperate with the inclined sections of the guiding slots 250 to drive the supporting seat 24 to move upward. After the supporting seat 24 moves in place, the support columns 252 are located at the connection of the inclined section and the horizontal section of the guiding slot 250 at this time. Then, the rectangular frame part of the box-shaped column is placed at the corresponding position of the supporting seat 24, and the rectangular plate is aligned with the rectangular frame. After that, the double-acting hydraulic cylinder pulls the sliding plate 40 to continue moving. The sliding plate 40 drives the support column 252 to continue moving along the waist slot 251. At this time, the support column 252 moves in the horizontal section of the guiding slot 250. The connecting plate 41 drives the pushing plate 261 through the sliding seat 260 to push the rectangular plate, so that the rectangular plate abuts and is fixed to the rectangular frame. The movement of the sliding plate 40 will also drive the limiting post 60 to penetrate the corresponding shaft plate 21 to limit and fix the base 22 to ensure the stability of the base 22. Then, the welding mechanism 3 performs welding processing on the box-shaped column.

[0042] As Figure 1 , Figure 2 and Figure 4 As shown, the connecting part 35 includes a limiting plate 350. Four limiting plates 350 distributed in a rectangle are fixedly installed on the front end surface of the rear fixing plate 32. The front ends of the limiting plates 350 slidably penetrate the front fixing plate 32. A limiting component for restricting the movement of the limiting plate 350 is arranged on the support plate 31.

[0043] As Figure 1 , Figure 2 and Figure 4 As shown, the limiting component includes a double-acting cylinder 351. The double-acting cylinder 351 is fixedly installed on the front end surface of the front support plate 31. Both telescopic sections of the double-acting cylinder 351 are fixedly installed with push-pull plates 352. Plug rods 353 that slidably penetrate the limiting plate 350 are fixedly installed at the opposite ends of the two push-pull plates 352.

[0044] AsFigure 1 , Figure 2 , Figure 3 and Figure 4 As shown in Figure 3 , Figure 4 , the pushing part 5 includes connecting plates. Connecting plates are fixedly installed on the opposite surfaces of the two support plates 31. Roller shafts 50 that are symmetric about the fixed plate 32 are rotatably installed on the opposite surfaces of the two connecting plates.

[0045] As Figures 1 - 6 shown, the reset assembly includes arc-shaped grooves 71. Arc-shaped grooves 71 are provided at positions corresponding to the upper ends of the vertical sections of the inverted T-shaped seats 20 and the base 22 one by one. The torsion spring rods 23 are located above the arc-shaped grooves 71. The lower end surface of the base 22 is an outward convex arc and abuts against the inner arc wall of the arc-shaped groove 71. The left end of the base 22 abuts against the left vertical inner wall of the arc-shaped groove 71. Through holes communicating with the arc-shaped groove 71 are symmetrically provided at the front and rear ends of the left vertical inner wall of the arc-shaped groove 71. A tension spring 72 is fixedly installed in the through hole, and the other end of the tension spring 72 is fixedly connected to the left end of the corresponding base 22. Circular grooves are provided at positions corresponding to the opposite surfaces of the two shaft plates 21 and the base 22 one by one. Ball bearings 73 are slidably installed in the circular grooves through compression springs. Grooves cooperating with the ball bearings 73 are provided at the front and rear ends of the base 22.

[0046] During specific operation, the two second electric slide rails 30 drive the corresponding support plates 31 to move. The support plates 31 drive the two fixed plates 32 to approach each other. At the same time, the limiting plates 350 penetrate through the corresponding fixed plates 32. Then, the double-acting cylinder 351 pushes the two push-pull plates 352 away from each other. The push-pull plates 352 push the insertion rods 353 to penetrate through the corresponding limiting plates 350 to limit the movement of the limiting plates 350, making the two fixed plates 32 an integral body, thereby improving the smoothness of the movement of the four welding assemblies 34, and further improving the welding quality of the box-shaped column. Moreover, the four welding assemblies 34 simultaneously perform welding on four weld seams to reduce the number of disassembly, re-clamping times and turning-over times during the welding process of the box-shaped column, thereby improving the overall efficiency of the welding process of the box-shaped column.

[0047] During the process of the welding mechanism 3 moving from right to left and approaching the corresponding base 22, the double-acting hydraulic cylinder 42 first drives the support column 252 to move through the connecting plate 41 and the sliding plate 40, so that the pushing plate 261 moves away from the box-shaped column. The cooperation between the support column 252 and the guiding groove 250 causes the supporting seat 24 to move downward and away from the box-shaped column. The sliding plate 40 also drives the limiting column 60 to disengage from the corresponding shaft plate 21. Then, as the welding mechanism 3 continues to move, during the movement, the roller shaft 50 pushes the connecting plate 41 and drives the base 22 to rotate. The rotation of the base 22 pushes the ball bearing 73 out of the groove on the corresponding base 22. The rotation of the base 22 can avoid interfering with the continuous movement of the welding mechanism 3. The supporting seats 24 and the fixing parts 6 on the remaining bases 22 maintain the support and fixation of the box-shaped body. At this time, the torsion spring rod 23 on the rotated base 22 is twisted and the tension spring 72 is stretched.

[0048] After the roller 50 is detached from the connecting plate 41 as the welding mechanism 3 moves, the base 22 rotates and resets under the dual effects of the torsion force of the torsion spring rod 23 and the resilience of the tension spring 72. During the rotation of the base 22, it will collide with the ball 73, and the ball 73 is pushed and moves away from the base 22 to the corresponding circular groove and compresses the compression spring. Finally, the base 22 conflicts with the left vertical inner wall of the arc groove 71. At this time, under the limitation of the left vertical inner wall of the arc groove 71, the base 22 is in a vertical state, and the ball 73 is opposite to the corresponding groove, and is stuck in the groove on the base 22 under the action of the compression spring to help the base 22 maintain a vertical state, and then the base 22 is fixed by the fixing part 6, and the box-type column is supported and clamped again by the lifting part 25 and the fixing part 6.

[0049] It should be noted that, after the supporting seat 24 moves down and away from the box-type column, the slide plate 40 drives the limiting column 60 to disengage from the corresponding shaft plate 21 to avoid interfering with the movement of the welding mechanism 3, and the pressure roller 320 rolls the corresponding rectangular plate as the welding mechanism 3 moves. Before the roller shaft 50 contacts the corresponding connecting plate 41, the base 22 remains in a vertical state under the joint action of the torsion spring rod 23, the tension spring 72, the ball 73 and the compression spring. The base 22 rotates only under the pushing force of the roller shaft 50 during the movement.

[0050] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In addition, in the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An arc welding device, comprising two front and rear symmetrical fixing seats; characterized in that: The upper end of the fixed seat is fixedly installed with a No. 1 electric slide rail, and the No. 1 electric slide rail is slidably installed with a moving seat, and the two moving seats are jointly fixedly installed with an inverted frame, and the inverted frame is provided with a welding mechanism, and a fixing mechanism is provided between the two fixed seats; wherein: The fixing mechanism comprises an inverted T-shaped seat, an inverted T-shaped seat is fixedly installed between the two fixing seats, two front-to-back symmetrical shaft plates are fixedly installed on the upper end of the vertical section of the inverted T-shaped seat, a plurality of bases are evenly arranged from left to right between the two shaft plates, a positioning plate is fixedly installed on the left end of the base located on the leftmost side, torsion spring rods rotatably connected to the corresponding shaft plates are fixedly installed on the front and rear ends of the base, a reset assembly is arranged between the base and the shaft plate and the inverted T-shaped seat, a slide groove is opened on the upper end of the base, a supporting seat is slidably installed in the slide groove, and a lifting part for driving the corresponding supporting seat to move up and down and a pushing part for fitting and fixing the rectangular plate and the rectangular frame are arranged on the base; The welding device also includes a pushing part, which is used to cooperate with the movement of the welding mechanism to drive the base to rotate in turn to ensure the continuous movement of the welding mechanism; the lifting part is provided with a fixing part that cooperates with the shaft plate to fix the base; The welding mechanism welds four welds at the same time, and cooperates with the pushing part to rotate the corresponding base during the movement of the welding mechanism, while the remaining bases keep the rectangular frame fixed and supported by the fixing part and the supporting seat.

2. An arc welding device according to claim 1, characterized in that: The reset assembly includes an arc groove, and an arc groove is provided at a position corresponding to the upper end of the vertical section of the inverted T-shaped seat and the base. The torsion spring rod is located above the arc groove, and the lower end surface of the base is an outwardly convex arc and contacts the arc wall inside the arc groove. The left end of the base contacts the left vertical inner wall of the arc groove, and the front and rear ends of the left vertical inner wall of the arc groove are symmetrically provided with notches connected to the arc groove. A tension spring is fixedly installed in the notch, and the other end of the tension spring is fixedly connected to the corresponding left end of the base. Circular grooves are provided on the opposite surfaces of the two axis plates and the base corresponds to each other. Balls are slidably installed in the circular grooves through the cooperation of compression springs, and grooves cooperating with the balls are provided at the front and rear ends of the base.

3. The arc welding device according to claim 1, characterized in that: The welding mechanism includes a No. 2 electric slide rail, and two No. 2 electric slide rails are symmetrically fixedly installed at the lower end of the horizontal section of the inverted frame. A support plate is slidably installed at the lower end of the No. 2 electric slide rail, and a fixed plate is fixedly installed on the opposite surfaces of the two support plates. Welding assemblies are symmetrically fixedly installed on the opposite surfaces of the two fixed plates, and pressure rollers are rotatably installed on the opposite surfaces of the two fixed plates and located between the two welding assemblies through an axle seat, and a connecting part is commonly provided on the two fixed plates.

4. The arc welding device according to claim 1, characterized in that: The lifting part includes a guide groove, and the guide groove is symmetrically opened on the supporting seat. The guide groove consists of a horizontal section and an inclined section inclined from bottom to top toward a side away from the center of the supporting seat. The horizontal section is arranged close to the center of the supporting seat. Waist grooves corresponding to the guide grooves are opened at both ends of the left and right sides of the base. Support columns are slidably installed in the two waist grooves opposite to each other on the left and right, and the support columns slide through the corresponding guide grooves. An actuator for driving the support columns to move is arranged on the base.

5. An arc welding device according to claim 4, characterized in that: The actuator includes a slide plate, the right end of each support column is fixedly mounted with a slide plate, and the slide plate is slidably mounted on the right end surface of the base forward and backward, and connecting plates are fixedly mounted on the opposite back surfaces of the two slide plates on the same base, and a bidirectional hydraulic cylinder is fixedly mounted on the right end of the base and below the slide plate, and the two telescopic sections of the bidirectional hydraulic cylinder are respectively fixedly connected to the two connecting plates.

6. An arc welding device according to claim 5, characterized in that: The pushing part comprises a slide seat, the left end of the connecting plate is fixedly mounted with the slide seat, the slide seat is slidably mounted on the upper end of the base, the upper end surface of the slide seat is fixedly mounted with a pushing plate, and the pushing plate is an inverted L-shaped structure.

7. The arc welding device according to claim 3, characterized in that: The pushing part comprises a connecting plate, and the connecting plates are fixedly installed on the opposite back surfaces of the two supporting plates, and roller shafts symmetrical to the left and right of the fixed plate are rotatably installed on the opposite surfaces of the two connecting plates.

8. The arc welding device according to claim 3, characterized in that: The connecting part includes a limit plate, and four limit plates distributed in a rectangular shape are fixedly installed on the front end surface of the fixed plate located at the rear side. The front end of the limit plate slides through the fixed plate located at the front side, and a limit assembly for limiting the movement of the limit plate is arranged on the support plate.

9. The arc welding device according to claim 5, characterized in that: The fixing part comprises a limiting column, and the limiting columns are fixedly installed on the opposite surfaces of the two connecting plates on the same base, and one end of the limiting column away from the corresponding connecting plate slides through the opposite connecting plate and the shaft plate.

10. The arc welding device according to claim 8, characterized in that: The limiting assembly includes a two-way cylinder, the front end surface of the support plate located on the front side is fixedly installed with the two-way cylinder, the two telescopic sections of the two-way cylinder are fixedly installed with push-pull plates, and the opposite ends of the two push-pull plates are fixedly installed with plug rods that slide through the limiting plates.

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