Precise welding equipment for steel pipe machining

Abstract

The invention relates to the technical field of steel pipe welding, in particular to precise welding equipment for steel pipe machining, which comprises a main body, the outer side of the main body is provided with a steel pipe butt-joint structure, the inner side of the steel pipe butt-joint structure is used for clamping and butt-jointing the outer sides of two hexagonal steel pipes, and the left and right ends of the main body respectively comprise a group of steel pipe supporting mechanisms; the left steel pipe supporting mechanism drives the steel pipe butt joint mechanism to move the upper side of the main body, the steel pipe supporting mechanisms are used for supporting and fixing the inner sides of the hexagonal steel pipes, and the steel pipe supporting mechanisms are used for driving the hexagonal steel pipes to revolve and rotate at the same time; the steel pipe welding mechanism is used for welding the butt joint gap of the two hexagonal steel pipes, according to the design, the steel pipe butt joint structure can be driven through the steel pipe supporting mechanism to achieve manual butt joint, then the hexagonal steel pipes are driven by the steel pipe supporting mechanism to revolve and rotate at the same time, and the six faces of the hexagonal steel pipes can be welded at the same time through the steel pipe welding mechanism after the hexagonal steel pipes rotate.

Description

Technical Field

[0001] The present invention relates to a precision welding device for steel pipe processing, in particular to a precision welding device for steel pipe processing, belonging to the technical field of steel pipe welding. Background Art

[0002] Hexagonal steel pipes have a large moment of inertia and section modulus due to their unique hexagonal cross-section, thus having stronger bending and torsion resistance capabilities. This enables them to be widely used in various load-bearing components in automobile manufacturing, such as chassis structures, suspension systems, transmission components, etc. Compared with circular pipes, hexagonal steel pipes can provide higher structural strength and stiffness with the same material consumption, which helps to reduce the weight of the whole vehicle and improve fuel economy. Hexagonal steel pipes are not only high in strength but also easy to process and connect, and can be assembled through welding, threaded connection, etc. Their excellent performance makes them an ideal choice in the application of new energy vehicles.

[0003] According to a welding device for stainless steel pipe processing disclosed in a Chinese patent document with the publication number CN222002418U, this design can weld two steel pipes well and solve the working intensity during the butt joint of two steel pipes. However, according to market demands, this device is not convenient for welding hexagonal steel pipes, and manual butt joint is also required when butt-jointing two hexagonal steel pipes. This design is not convenient for welding multiple steel pipes simultaneously when rotating one circle. Therefore, there is an urgent need for a precision welding device for steel pipe processing to solve the above existing problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a precision welding device for steel pipe processing. The steel pipe supporting mechanism can drive the steel pipe butt-jointing structure to solve manual butt joint, and then the steel pipe supporting mechanism drives the hexagonal steel pipe to revolve and rotate simultaneously. The rotating hexagonal steel pipe can be welded to the six surfaces of the steel pipe through the steel pipe welding mechanism.

[0005] To achieve the above purpose, the main technical solutions adopted by the present invention include: a precision welding device for steel pipe processing, including a main body. The main body includes a steel pipe butt-jointing structure arranged on the outside. The inside of the steel pipe butt-jointing mechanism is used for clamping and butting the outside of two hexagonal steel pipes. The left and right ends of the main body respectively include a group of steel pipe supporting mechanisms. The left steel pipe supporting mechanism drives the steel pipe butt-jointing mechanism to move to the upper side of the main body. The steel pipe supporting mechanism is used for supporting and fixing the inside of the hexagonal steel pipe. The steel pipe supporting mechanism is used for driving the hexagonal steel pipe to revolve and rotate simultaneously. The upper side of the main body includes a steel pipe welding mechanism arranged, and the steel pipe welding mechanism is used for welding the gap butted by two hexagonal steel pipes.

[0006] Preferably, the steel pipe supporting mechanism includes a group of support frames. The bottom of the group of support frames is fixedly connected to the top of the main body. A rotating frame is rotatably connected to the inner side of each support frame in the group. Six sub-gears are rotatably connected to the inner side of the rotating frame in a circumferential manner. A main gear is meshed and connected to the inner sides of the six sub-gears. A rotating shaft is rotatably connected to the inner side of the left support frame. The transmission shaft is fixedly connected to the inside of the rotating frame. The main gears are fixedly connected to both ends of the transmission shaft. The main gears are located on the inner side surface of the support plate.

[0007] Preferably, a driving machine is inserted into the right end of the transmission shaft. The outside of the driving machine is fixedly connected to the inside of the right support frame in the group. An electric push rod is fixedly connected to the inner side surface of the sub-gear. The other end of the electric push rod away from the sub-gear is fixedly connected with a protective frame through a bolt. A fixed seat is arranged inside the protective frame. A bidirectional lead screw is rotatably connected to the inside of the fixed seat. Threaded plates are threadedly connected to both ends of the bidirectional lead screw. A support plate is welded to the outside of the threaded plate. The outside of the support plate supports the inside of the hexagonal steel pipe.

[0008] Preferably, sliding plates are arranged on both inner walls of the protective frame. The outside of the threaded plate is slidably connected to the outside of the sliding plate. Second limiting grooves are formed on both the upper and lower sides of the sliding plate. A group of first limiting grooves are formed on the outside of the threaded plate. A positioning plate that matches is placed inside the first limiting grooves and the second limiting grooves. A connecting bolt penetrates through the inside of the sliding plate. A micro motor is inserted into the top end of the bidirectional lead screw.

[0009] Preferably, a large bevel gear is arranged at the left end of the transmission shaft. The large bevel gear is connected in cooperation with a first bevel gear rod. The lower side of the first bevel gear rod is connected in cooperation with a second bevel gear rod. The second bevel gear rod, the other end of the second bevel gear rod away from the first bevel gear rod is connected in cooperation with a small bevel gear. A sliding groove is formed on the front side of the main body. A bidirectional reciprocating lead screw is rotatably connected to the inside of the sliding groove. Moving frames are respectively connected in cooperation with both sides of the bidirectional reciprocating lead screw. A threaded rod is threadedly engaged with the inside of the left moving frame. The left side of the threaded rod is rotatably connected to a connecting plate. The bottom of the connecting plate is fixedly connected to the top of the main body. A placing frame is fixedly connected to the top of the moving frame. The placing frame is used for supporting the hexagonal steel pipe. A large gear is arranged at the right end of the threaded rod. The large gear drives the steel pipe docking mechanism to move.

[0010] Preferably, the steel pipe butt joint mechanism includes a steel pipe butt joint frame. A placement groove is formed inside the steel pipe butt joint frame, and two groups of electric slide rails are arranged on both sides of the placement groove. One ends of the two groups of electric slide rails are butted against each other. A moving plate is fixedly connected to the outside of the sliding frame carried by the electric slide rail. The outside of the moving plate is attached to the inside of the placement groove. One positioning groove is formed on each of the two outer sides of the placement frame. A micro cylinder is slidably connected inside one positioning groove. A sliding plate is arranged on the outside of the micro cylinder. A slider is arranged on the top of the sliding plate. Slideways are formed on both sides of the top of the steel pipe butt joint frame, and the inside of the slideways is slidably connected to the inside of the slider. The top of the slide rail is inlaid with a first sensor and a second sensor respectively. The second sensor is located at the end of the electric slide rail. The signal receiving end of the first sensor is connected to the signal receiving ends of the micro cylinder and the electric slide rail. The signal receiving end of the second sensor is connected to the signal stop end of the electric slide rail.

[0011] Preferably, a group of chutes are formed on the upper side surface inside the sliding plate. A clamping block is slidably connected inside the chute. A group of moving blocks are formed on both outer surfaces of the clamping block. A group of moving grooves are formed on both side walls of the chute, and the outside of the moving block is slidably connected to the inside of the moving groove.

[0012] Preferably, a multi-stage telescopic rod is arranged at the bottom of the steel pipe butt joint frame. A conveyor belt is fixedly connected to the bottom of the multi-stage telescopic rod. A bracket is arranged on the outside of the conveyor belt. Roller rods are rotatably connected to both ends inside the bracket. The outside of the roller rod is located inside the conveyor belt. A driving shaft is rotatably connected inside the bracket. A small gear is inserted at the end of the driving shaft. The bottom of the small gear is meshed and connected with a large gear. The inside of the large gear is fixedly connected to the right end of the threaded rod. The bracket is obliquely installed on the top of the main body.

[0013] Preferably, the pipe welding mechanism includes a first welding group and a second welding group. The first welding group drives the second welding group to weld the gaps on the six surfaces where two hexagonal steel pipes are butted. The first welding group includes a first chain. The whole of the first chain is in a triangular shape. First large sprockets are connected around both bottom ends of the first chain. A first shaft rod is fixedly connected inside the first large sprocket. A second shaft rod and a third shaft rod are respectively arranged inside and outside the top end of the first chain. Small sprockets are rotatably connected to the outside of the first shaft rod and the third shaft rod. A fixing frame is arranged at the end of the second shaft rod. A protective cover is arranged for the first welding group and the second welding group, and the protective cover is fixedly connected to the top of the main body. The fixing frame is fixedly connected to the top of the protective cover.

[0014] Preferably, the second welding group includes a first rotating shaft and a second rotating shaft. A second large sprocket is fixedly connected to one side of the first rotating shaft and the second rotating shaft. A second chain is wound around the outside of the second large sprocket. A large pulley is arranged on the outside of the first rotating shaft. A belt is connected to the outside of the large pulley. A small pulley is arranged inside the belt. The inside of the small pulley is fixedly connected to the first shaft rod on the right side of the first welding group. The end of the first shaft rod on the left side of the first welding group is inserted with a synchronous motor. The synchronous motor is located outside the protective cover. The second chain is perpendicular to the inside of the protective cover. The first shaft rod, the second shaft rod, the third shaft rod, the first rotating shaft and the second rotating shaft are rotatably connected to the inside of the protective shell. A mounting plate is fixedly connected to the outside of the first chain. A first welding gun is fixedly connected to the bottom of the mounting plate. A second welding gun is fixedly connected to the outside of the second chain.

[0015] The present invention has at least the following beneficial effects: First, when the supporting mechanism of the steel pipe rotates around the sun, it drives the moving plate to push the placing rack to move the hexagonal steel pipe to be butted into the steel pipe butting mechanism. At this time, the steel pipe butting structure can clamp and butt the hexagonal steel pipe to be butted.

[0016] Furthermore, when the moving frame moves, it can drive the steel pipe butting mechanism through parts such as the threaded rod. At this time, it is convenient for the steel pipe butting structure to tilt and drive the hexagonal steel pipe to the top of the moving body of the hexagonal steel pipe. Furthermore, when the supporting mechanism of the steel pipe rotates around the sun, it is convenient to support and fix the two steel pipes.

[0017] Through the steel pipe supporting structure, the hexagonal steel pipe rotates around the sun and rotates on its own axis at the same time. The rotation around the sun and the rotation on its own axis of the hexagonal steel pipe are beneficial for the first welding group to weld the first, second, third, and fourth faces of the hexagonal steel pipe simultaneously. Then, the second welding group can weld the fifth and sixth faces of the hexagonal steel pipe simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is of the present invention Figure 1 left side schematic diagram; Figure 3 is of the present invention Figure 1 cross-sectional schematic diagram; Figure 4 is of the present invention Figure 1 right side schematic diagram; Figure 5 is a schematic diagram of the overall steel pipe supporting mechanism of the present invention No. 1; Figure 6The second overall schematic diagram of the steel pipe support mechanism of the present invention; Figure 7 The first schematic diagram of the steel pipe docking mechanism of the present invention; Figure 8 For the present invention Figure 7 The enlarged view of part A; Figure 9 The second schematic diagram of the steel pipe docking mechanism of the present invention; Figure 10 The third schematic diagram of the steel pipe docking mechanism of the present invention; Figure 11 The overall structural schematic diagram of the steel pipe welding machine of the present invention; Figure 12 The first welding column schematic diagram of the steel pipe welding machine of the present invention; Figure 13 The second welding column schematic diagram of the steel pipe welding machine of the present invention.

[0019] In the figure, 1, main body; 2, steel pipe docking mechanism; 21, steel pipe docking frame; 22, electric slide rail; 221, first sensor; 222, second sensor; 23, moving plate; 24, micro cylinder; 25, sliding plate; 26, clamping block; 27, chute; 28, positioning groove; 201, bracket; 202, roller rod; 203, driving shaft; 204, small gear; 205, conveyor belt; 206, multi-stage telescopic rod; 3, steel pipe welding mechanism; 31, first welding group; 311, first chain; 312, first shaft rod; 313, first large sprocket; 314, synchronous motor; 315, second shaft rod; 316, fixed frame; 317, third shaft rod; 318, small sprocket; 319, mounting plate; 320, first welding gun; 32, second welding group; 321, first rotating shaft; 322, second large sprocket; 323, second chain; 324, second welding gun; 325, small pulley; 326, large pulley; 327, belt; 328, second rotating shaft; 4, steel pipe support mechanism; 41, transmission shaft; 42, large bevel gear; 43, first bevel gear rod; 44, second bevel gear rod; 45, small bevel gear; 46, bi-directional reciprocating lead screw; 47, threaded rod; 471, large gear; 48, placing rack; 49, moving rack; 401, support frame; 402, driving machine; 403, rotating frame; 404, sub-gear; 405, main gear; 406, electric push rod; 407, protection frame; 408, fixed seat; 409, bi-directional lead screw; 410, supporting plate; 411, threaded plate; 412, first limit groove; 413, positioning plate; 414, micro motor; 415, flange bolt; 416, second limit groove; 417, sliding plate. Detailed implementation method

[0020] The following will describe the implementation manners of the present application in detail in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly.

[0021] As Figure 1 - Figure 13 shown, a precision welding device for steel pipe processing provided in this embodiment includes a main body 1. The main body 1 includes a steel pipe butt-joint structure disposed on the outside. The inside of the steel pipe butt-joint mechanism 2 is used for clamping and butting the outside of two hexagonal steel pipes. The left and right ends of the main body 1 respectively include a set of steel pipe supporting mechanisms 4. The left steel pipe supporting mechanism 4 drives the steel pipe butt-joint mechanism 2 to move on the upper side of the main body 1. The steel pipe supporting mechanism 4 is used for supporting and fixing the inside of the hexagonal steel pipe. The steel pipe supporting mechanism 4 is used for driving the hexagonal steel pipe to revolve and rotate simultaneously. The upper side of the main body 1 includes a steel pipe welding mechanism 3 disposed thereon. The steel pipe welding mechanism 3 is used for welding the gap butted by two hexagonal steel pipes.

[0022] Furthermore, the steel pipe supporting mechanism 4 includes a set of support frames 401. The bottom of the set of support frames 401 is fixedly connected to the top of the main body 1. A rotating frame 403 is rotatably connected to the inside of each of the set of support frames 401. Six sub-gears 404 are rotatably connected to the inner circumference of the rotating frame 403. A main gear 405 is meshed and connected to the inside of the six sub-gears 404. A transmission shaft is rotatably connected to the inside of the left support frame 401. The transmission shaft 41 is fixedly connected to the inside of the rotating frame 403. Main gears 405 are fixedly connected to both ends of the transmission shaft 41. The main gears 405 are located on the inner side surface of the support plate. A driving machine 402 is inserted into the right end of the transmission shaft 41. The outside of the driving machine 402 is fixedly connected to the inside of the right support frame 401. An electric push rod 406 is fixedly connected to the inner side surface of the sub-gear 404; In this way, the driving machine 402 is driven by electricity. The driving machine 402 drives the supporting and taking mechanisms on both sides of the main body 1 to rotate through the transmission shaft 41. At this time, it is beneficial for the transmission shaft 41 to drive the main gear 405 to rotate. Since both the main gear 405 and the rotating frame 403 are fixedly connected to the rotating shaft, the transmission shaft 41 can drive the rotating frame 403 and the main gear 405 to rotate simultaneously. When the main gear 405 rotates, the sub-gear 404 can be driven to revolve through the rotating frame 403. When the sub-gear 404 revolves, it can rotate along the outside of the main gear 405.

[0023] Among them, the other end of the electric push rod 406 far from the secondary gear 404 is fixedly connected with a protective frame 407 through bolts. A fixed seat 408 is arranged inside the protective frame 407. A bidirectional lead screw 409 is rotatably connected inside the fixed seat 408. Threaded plates 411 are threadedly connected to both ends of the bidirectional lead screw 409. A support plate 410 is welded to the outside of the threaded plate 411. The outside of the support plate 410 props against the inside of the hexagonal steel pipe. Sliding plates 417 are arranged on both inner walls of the protective frame 407. The outside of the threaded plate 411 is slidably connected to the outside of the sliding plate 417. Second limiting grooves 416 are formed on both the upper and lower sides of the sliding plate 417. A group of first limiting grooves 412 are formed on the outside of the threaded plate 411. Matching positioning plates 413 are placed inside the first limiting grooves 412 and the second limiting grooves 416. A flange bolt 415 penetrates through the inside of the sliding plate 417. A micro motor 414 is inserted at the top end of the bidirectional lead screw 409; In this way, when the steel pipe supporting mechanism 4 drives the two welded hexagonal steel pipes it supports and moves to the bottom of the main body 1, at this time, starting the micro motor 414 can drive the bidirectional lead screw 409 to rotate inside the protective frame 407 through the fixed seat 408, which is beneficial for the threaded rod 47 to drive the support plate 410 to release the fixation of the hexagonal steel pipe. Then, electrically driving the electric push rod 406 is beneficial for the support plate 410 to separate from the end of the hexagonal steel pipe it supports, thereby completing the blanking operation of the hexagonal steel pipe. When the micro motor 414 drives the bidirectional lead screw 409 to reverse, it is beneficial for the threaded plate 411 to drive the support plate 410 to support and fix the hexagonal steel pipe. When the threaded plate 411 moves upward along the bidirectional lead screw 409, the threaded plate 411 will slide inside the sliding plate 417, thereby making the movement of the threaded plate 411 along the inside of the protective frame 407 more stable. The inside of the second limiting groove 416 can fix the positioning plate 413 and the sliding plate 417 through the flange bolt. At this time, when the threaded plate 411 moves, it is prevented from separating from the protective frame 407.

[0024] Furthermore, a large bevel gear 42 is arranged at the left end of the transmission shaft 41. The large bevel gear 42 is connected in cooperation with a first bevel gear rod 43. A second bevel gear rod 44 is connected in cooperation with the lower side of the first bevel gear rod 43. The other end of the second bevel gear rod 44 far from the first bevel gear rod 43 is connected in cooperation with a small bevel gear 45. A sliding groove is formed on the front side of the main body 1. And a bidirectional reciprocating lead screw 46 is rotatably connected inside the sliding groove. Moving frames 49 are respectively connected in cooperation with both sides of the bidirectional reciprocating lead screw 46. A threaded rod 47 is threadedly connected inside the left moving frame 49. The left side of the threaded rod 47 is rotatably connected to a connecting plate. And the bottom of the connecting plate is fixedly connected to the top of the main body 1. A placing frame 48 is fixedly connected to the top of the moving frame 49. The placing frame 48 is used to support the hexagonal steel pipe. A large gear 471 is arranged at the right end of the threaded rod 47. The large gear 471 drives the steel pipe docking mechanism 2 to move; In this method, the driving motor 402 drives the transmission shaft 41 to rotate. At the same time, the large bevel gear 42 drives the first bevel gear rod 43 to drive the second bevel gear rod 44, and the second bevel gear rod 44 drives the small bevel gear 45 to rotate. At this time, it is beneficial for the small bevel gear 45 to drive the bi-directional reciprocating screw rod 46 to rotate. Furthermore, the moving frames 49 at both ends of the bi-directional reciprocating screw rod 46 slide on the top of the main body 1, which is beneficial for the moving frame 49 to drive the hexagonal steel pipe into the internal of the steel pipe docking mechanism 2 through the placement rack 48 provided at the top.

[0025] Furthermore, the steel pipe docking mechanism 2 includes a steel pipe docking frame 21. A placement groove is provided inside the steel pipe docking frame 21, and two groups of electric slide rails 22 are provided on both sides of the placement groove. One ends of the two groups of electric slide rails 22 are butted against each other. A moving plate 23 is fixedly connected to the outside of the sliding frame carried by the electric slide rail 22. The outside of the moving plate 23 is attached to the inner side of the placement groove. A set of positioning grooves 28 are provided on both outer sides of the placement rack 48. A micro cylinder 24 is slidably connected inside a set of positioning grooves 28. A sliding plate 25 is provided on the outside of the micro cylinder 24. A slider is provided on the top of the sliding plate 25. Slideways are provided on both sides of the top of the steel pipe docking frame 21, and the inside of the slideways is slidably connected to the inside of the slider. The top of the slide rails is inlaid with a first sensor 221 and a second sensor 222. The second sensor 222 is located at the end of the electric slide rail 22. The signal receiving end of the first sensor 221 is connected to the signal receiving ends of the micro cylinder 24 and the electric slide rail 22. The signal receiving end of the second sensor 222 is connected to the signal stop end of the electric slide rail 22. A set of chutes 27 are provided on the upper side surface inside the sliding plate 25. A clamping block 26 is slidably connected inside the chutes 27. A set of moving blocks are provided on both outer surfaces of the clamping block 26. A set of moving grooves are provided on both side walls of the chutes 27, and the inside of the moving grooves is slidably connected to the outside of the moving blocks. In this method, when the hexagonal steel pipe is moved into the internal of the steel pipe docking frame 21 through the placement rack 48 and contacts the first sensor 221, it is beneficial for the first sensor 221 to drive the cylinder and the electric slide rail 22 at the same time. At this time, it is convenient for the cylinder to push the clamping block 26 to slide inside the chute 27, which is convenient for clamping the hexagonal steel pipe inside the steel pipe docking frame 21 by the slider. Since the moving groove is slidably connected to the moving block, the stability of the clamping block 26 moving inside the chute 27 can be increased at this time. Then, the electric slide rail 22 drives the clamped hexagonal steel pipe to move relatively inside the steel pipe docking frame 21. When the hexagonal steel pipe contacts the second sensor 222, the electric slide rail 22 stops sliding to complete the docking operation.

[0026] Among them, a multi-stage telescopic rod 206 is arranged at the bottom of the steel pipe docking frame 21. The bottom of the multi-stage telescopic rod 206 is fixedly connected with a conveyor belt 205. A bracket 201 is arranged outside the conveyor belt 205. Roller rods 202 are rotatably connected to both ends inside the bracket 201. The outside of the roller rods 202 is located inside the conveyor belt 205. A driving shaft 203 is rotatably connected inside the bracket 201. A small gear 204 is inserted at the end of the driving shaft 203. A large gear 471 is meshed and connected to the bottom of the small gear 204. The inside of the large gear 471 is fixedly connected to the right end of the threaded rod 47. The bracket 201 is inclined and installed on the top of the main body 1; In this way, when the transmission shaft 41 drives the large bevel gear 42 to drive the first bevel gear rod 43 and the second bevel gear rod to rotate at the same time, the small bevel gear 45 is driven to rotate. At this time, the small bevel gear 45 drives the bi-directional reciprocating lead screw 46 to rotate, which is beneficial for the bi-directional reciprocating lead screw 46 to drive the two side moving frames 49 to slide on the top of the main body 1, so as to facilitate the moving frame 49 to drive the hexagonal steel pipe to move relative to the inside of the steel pipe docking frame 21 through the placing frame 48. When the moving frame 49 on the left side of the bi-directional reciprocating lead screw 46 moves, it can drive the threaded rod 47 to rotate. The threaded rod 47 drives the small gear 204 through the large gear 471 to drive the driving shaft 203 to rotate inside the bracket 201. At this time, it is convenient for the conveyor belt 205 inside the bracket 201 to tilt the steel pipe docking frame 21 to the top of the main body 1 through the roller rods 202. The inclined state of the bracket 201 is beneficial for the steel pipe docking frame 21 to drive the clamped hexagonal steel pipe to move inside the steel pipe supporting mechanism 4. The multi-stage telescopic rod 206 facilitates the steel pipe docking frame 21 to drive the hexagonal steel pipe to move upward, which is further beneficial for the electric push rod 406 to push the supporting plate 410 to be inserted inside the hexagonal steel pipe for supporting and fixing.

[0027] Furthermore, the pipe welding mechanism includes a first welding group 31 and a second welding group 32. The first welding group 31 drives the second welding group 32 to weld the gaps on the six surfaces where two hexagonal steel pipes are docked. The first welding group 31 includes a first chain 311. The whole of the first chain 311 is in a triangular shape. First large sprockets 313 are respectively connected around the two bottom ends of the first chain 311. A first shaft rod 312 is fixedly connected inside the first large sprockets 313. A second shaft rod 315 and a third shaft rod 317 are respectively arranged inside and outside the top end of the first chain 311. Small sprockets 318 are rotatably connected to the outside of the first shaft rod 312 and the third shaft rod 317. A fixing frame 316 is arranged at the end of the second shaft rod 315. The first welding group 31 and the second welding group 32 are provided with a protective cover, and the protective cover is fixedly connected to the top of the main body 1. The fixing frame 316 is fixedly connected to the top of the protective cover; Among them, the second welding group 32 includes a first rotating shaft 321 and a second rotating shaft 328. On one side of the first rotating shaft 321 and the second rotating shaft 328, a second large sprocket 322 is fixedly connected. The outside of the second large sprocket 322 is surrounded and connected by a second chain 323. On the outside of the first rotating shaft 321, a large pulley 326 is arranged. The outside of the large pulley 326 is connected by a belt 327. Inside the belt 327, a small pulley 325 is arranged. The inside of the small pulley 325 is fixedly connected to the first shaft rod 312 on the right side of the first welding group 31. The fixed end of the first shaft rod 312 on the left side of the first welding group 31 is inserted with a synchronous motor 314. The synchronous motor 314 is located outside the protective cover. The second chain 323 is perpendicular to the inside of the protective cover. The first shaft rod 312, the second shaft rod 315, the third shaft rod 317, the first rotating shaft 321 and the second rotating shaft 328 are rotatably connected to the inside of the protective shell. The outside of the first chain 311 is fixedly connected with a mounting plate 319. The bottom of the mounting plate 319 is fixedly connected with a first welding gun 320. The outside of the second chain 323 is fixedly connected with a second welding gun 324; In this way, the steel pipe support mechanism 4 drives the hexagonal steel pipe to rotate around its own axis and revolve around the axis of the steel pipe support mechanism 4 at the same time. Since the overall shape of the first welding group 31 is triangular, it is convenient for the bottom side of the first welding group 31 to match the top of the steel pipe support mechanism 4. The second welding group 32 is conducive to matching with the outside of the steel pipe support mechanism 4. Driving the synchronous motor 314 can drive the first welding group 31 and the second welding group 32 to move back and forth along the top and outside of the steel pipe support mechanism 4 at the same time, and the six surfaces of the hexagonal steel pipe can be welded simultaneously.

[0028] Such as Figure 1 - Figure 13 As shown in the figure, the principle of a precision welding device for steel pipe processing provided in this embodiment is as follows: First, two hexagonal steel pipes to be butted move from the previous process to the top of the placement rack 48. At this time, driving the starter facilitates the rotation of the transmission shaft 41 on the top of the main body 1 through the support frame 401. Since the main gear 405 and the rotating frame 403 are fixedly connected to both ends of the transmission shaft 41, it is convenient for the transmission shaft 41 to drive the main gear 405 and the rotating frame 403 to rotate at the same time. The secondary gear 404 rotatably connected to the inner circumference of the rotating frame 403 meshes with the main gear 405. Therefore, it is beneficial for the rotating frame 403 to drive the secondary gear 404 to revolve, and at the same time, the secondary gear 404 can rotate around its own axis along the outside of the main gear 405.

[0029] When the rotating shaft rotates, it simultaneously drives the first bevel gear rod 43 through a large bevel gear to drive the second bevel gear rod 44 to rotate. At this time, the second bevel gear rod 44 can drive the bi-directional reciprocating lead screw 46 to rotate inside the moving groove through a small bevel gear, facilitating the bi-directional reciprocating lead screw 46 to drive the moving brackets 49 at both ends to perform relative movement. At this time, the moving bracket 49 drives the placement bracket 48 to move the hexagonal steel pipe inside the steel pipe docking frame 21, and the two hexagonal steel pipes are effectively docked through the steel pipe docking mechanism 2.

[0030] During the movement of the moving bracket 49 on the right side of the bi-directional reciprocating lead screw 46, it can drive the threaded rod 47. The threaded rod 47 will drive the large gear 471 to rotate. At this time, the large gear 471 drives the drive shaft 203 to rotate through the small gear 204. Through the drive shaft 203, the conveyor belt can be driven to transport along the outer side of the roller rod 202 inside the bracket 201. Since the bracket 201 is inclined with the top of the main body 1, at this time, it is convenient for the steel pipe docking mechanism 2 to move the hexagonal steel pipe to the bottom of the steel pipe support mechanism 4. Starting the multi-stage telescopic rod 206 can drive the steel pipe docking frame 21 to move upward. Then, the hexagonal steel pipe will correspond to the revolving steel pipe support mechanism 4. Then, the support plate 410 supports and fixes the two docked hexagonal steel pipes. After the hexagonal steel pipe is fixed, the multi-stage telescopic rod 206 is reset to prevent the hexagonal steel pipe from being blocked by the docking frame during revolution.

[0031] At this time, start the motor to drive the first shaft to rotate simultaneously. Since the first welding column is triangular at the top of the steel pipe support mechanism 4, at this time, the first shaft rod 312 drives the chain through the large sprocket. When the first chain 311 is driven, it performs triangular drive through the small sprockets 318 connected to the top second shaft rod 315 and the third shaft rod 317. At this time, it is convenient for the first welding gun 320 connected to the first sprocket through the mounting plate 319 to also perform triangular drive. Then, the first shaft rod 312 drives the small pulley 325 to rotate. The small pulley 325 drives the large pulley 326 and the first rotating shaft 321 to rotate simultaneously through the belt 327. Since the second welding group 32 is vertically corresponding to the outer side of the hexagonal steel pipe, at this time, the first rotating shaft 321 and the second rotating shaft 328 drive the second chain 323 through the second large sprocket 322 on the outer side. The second chain 323 can drive the second welding gun 324 to slowly move downward. When the steel pipe support mechanism 4 revolves, at this time, the first surface of the hexagonal steel pipe that rotates by itself is docked with the first welding gun 320. The upward movement of the first welding gun 320 can complete the welding of the first surface. Since the hexagonal steel pipe continues to revolve and rotate, at this time, the hexagonal steel pipe will be completely matched with the bottom of the first welding column. Therefore, when the first welding gun 320 moves upward continuously, it can simultaneously weld the second, third, and fourth surfaces of the hexagonal steel pipe. When the hexagonal steel pipe continues to revolve and rotate, at this time, the hexagonal steel pipe will be matched with the perpendicular second welding group 32. Therefore, it is convenient for the second welding gun 324 to weld the fifth and sixth surfaces of the hexagonal steel pipe simultaneously when moving vertically.

[0032] After welding is completed on all six surfaces, the hexagonal steel pipe is continuously rotated around its axis and moved to the bottom of the main body 1, and the fixation is released. At the same time, the reciprocating screw rod 46 can drive the moving frame 49 to move back and forth. Therefore, the hexagonal steel pipe can be loaded while unloading. At this time, the synchronous motor 314 is driven in the reverse direction, and at this time, the first welding group 31 and the second welding group 32 can perform reciprocating welding operations.

[0033] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A precision welding device for steel pipe processing, comprising a main body (1), characterized in that: The main body (1) includes a steel pipe docking structure arranged on the outside, the inner side of the steel pipe docking mechanism (2) is used to clamp and dock the outer sides of two hexagonal steel pipes, the left and right ends of the main body (1) respectively include a group of steel pipe supporting mechanisms (4), the left steel pipe supporting mechanism (4) drives the steel pipe docking mechanism (2) to move the upper side of the main body (1), the steel pipe supporting mechanism (4) is used to support and fix the inner side of the hexagonal steel pipe, the steel pipe supporting mechanism (4) is used to drive the hexagonal steel pipe to revolve and rotate at the same time, and the upper side of the main body (1) includes a steel pipe welding mechanism (3), and the steel pipe welding mechanism (3) is used to weld the gap between the two hexagonal steel pipes.

2. The precision welding equipment for steel pipe processing according to claim 1, characterized in that: The steel pipe supporting mechanism (4) comprises a group of support frames (401), the bottom of the group of support frames (401) is fixedly connected to the top of the main body (1), the inner sides of the group of support frames (401) are rotatably connected to a rotating frame (403), the inner sides of the rotating frame (403) are rotatably connected to six secondary gears (404), the inner sides of the six secondary gears (404) are meshedly connected to a main gear (405), the inner side of the left support frame (401) is rotatably connected to a rotating shaft, the transmission shaft (41) is fixedly connected to the inside of the rotating frame (403), both ends of the transmission shaft (41) are fixedly connected to the main gear (405), and the main gear (405) is located on the inner side of the support plate.

3. The precision welding equipment for steel pipe processing according to claim 2, characterized in that: A driving machine (402) is plugged into the right end of the transmission shaft (41), the outside of the driving machine (402) is fixedly connected to the inside of the right support frame (401), the inner side of the sub-gear (404) is fixedly connected to an electric push rod (406), the other end of the electric push rod (406) away from the sub-gear (404) is fixedly connected to a protective frame (407) by bolts, a fixing seat (408) is arranged on the inner side of the protective frame (407), a bidirectional screw rod (409) is rotatably connected to the inside of the fixing seat (408), both ends of the bidirectional screw rod (409) are threadedly connected to a threaded plate (411), a support plate (410) is welded to the outer side of the threaded plate (411), and the outer side of the support plate (410) is supported in the hexagonal steel pipe.

4. The precision welding equipment for steel pipe processing according to claim 3 is characterized in that: Both inner walls of the protection frame (407) are provided with slide plates (417), the outer side of the threaded plate (411) is slidably connected to the outer side of the slide plate (417), the upper and lower sides of the slide plate (417) are provided with second limiting grooves (416), the outer side of the threaded plate (411) is provided with a group of first limiting grooves (412), matching positioning plates (413) are placed inside the first limiting grooves (412) and the second limiting grooves (416), a flange bolt (415) passes through the inside of the slide plate (417), and a micro motor (414) is plugged into the top of the bidirectional screw rod (409).

5. The precision welding equipment for steel pipe processing according to claim 2, characterized in that: A large bevel gear (42) is provided at the left end of the transmission shaft (41), and the large bevel gear (42) is matched with a first bevel gear rod (43), and the lower side of the first bevel gear rod (43) is matched with a second bevel gear rod (44), and the other end of the second bevel gear rod (44) away from the first bevel gear rod (43) is matched with a small bevel gear (45), and a sliding groove is provided on the front side of the main body (1), and a bidirectional reciprocating screw rod (46) is rotatably connected inside the sliding groove, and the bidirectional reciprocating screw rod (46) is rotatably connected inside the sliding groove. The two sides of the reciprocating screw rod (46) are respectively connected to movable frames (49) in cooperation with each other. The internal thread of the movable frame (49) on the left side is connected to a threaded rod (47) in cooperation with each other. The left side of the threaded rod (47) is rotatably connected to a connecting plate, and the bottom of the connecting plate is fixedly connected to the top of the main body (1). The top of the movable frame (49) is fixedly connected to a placement frame (48), and the placement frame (48) is used to support the hexagonal steel pipe. A large gear (471) is provided at the right end of the threaded rod (47), and the large gear (471) drives the steel pipe docking mechanism (2) to move.

6. The precision welding equipment for steel pipe processing according to claim 5, characterized in that: The steel pipe docking mechanism (2) comprises a steel pipe docking frame (21), a placement groove is provided inside the steel pipe docking frame (21), and two groups of electric slide rails (22) are provided on both sides of the placement groove, one end of the two groups of electric slide rails (22) are connected to each other, and a moving plate (23) is fixedly connected to the outer side of the sliding frame carried by the electric slide rail (22), and the outer side of the moving plate (23) is attached to the inner side of the placement groove, and a group of positioning grooves (28) are provided on both sides of the outer side of the placement frame (48), and a micro cylinder (24) is slidably connected to the inner side of one group of the positioning grooves (28), and the outer side of the micro cylinder (24) is fixedly connected to the outer side of the micro cylinder (24). A sliding plate (25) is arranged on the side, a slider is arranged on the top of the sliding plate (25), slideways are provided on both sides of the top of the steel pipe docking frame (21), and the inside of the slideway is slidably connected to the inside of the slider, a first sensor (221) and a second sensor (222) are inlaid on the top of the slide rail, the second sensor (222) is located at the end of the electric slide rail (22), a signal receiving end of the first sensor (221) is connected to the signal receiving end of the micro cylinder (24) and the electric slide rail (22), and a signal receiving end of the second sensor (222) is connected to the signal stop end of the electric slide rail (22).

7. The precision welding equipment for steel pipe processing according to claim 6, characterized in that: A group of slide grooves (27) are formed on the inner upper surface of the sliding plate (25), the inner part of the slide groove (27) is slidably connected to the clamping block (26), a group of moving blocks are formed on both outer sides of the clamping block (26), a group of moving grooves are formed on both side walls of the slide groove (27), and the inner part of the moving groove is slidably connected to the outer side of the moving block.

8. The precision welding equipment for steel pipe processing according to claim 7, characterized in that: A multi-stage telescopic rod (206) is arranged at the bottom of the steel pipe docking frame (21), and a conveyor belt (205) is fixedly connected to the bottom of the multi-stage telescopic rod (206). A bracket (201) is arranged on the outside of the conveyor belt (205). Both ends of the inside of the bracket (201) are rotatably connected to roller rods (202), and the outside of the roller rod (202) is located inside the conveyor belt (205). A drive shaft (203) is rotatably connected to the inside of the bracket (201). A small gear (204) is inserted at the end of the drive shaft (203). The bottom of the small gear (204) is meshed with a large gear (471). The inside of the large gear (471) is fixedly connected to the right end of the threaded rod (47). The bracket (201) is installed obliquely on the top of the main body (1).

9. The precision welding equipment for steel pipe processing according to claim 1, characterized in that: The pipeline welding mechanism comprises a first welding group (31) and a second welding group (32); the first welding group (31) drives the second welding group (32) to weld the gaps of six surfaces of two hexagonal steel pipes connected together; the first welding group (31) comprises a first chain (311); the first chain (311) is in a triangular shape as a whole; the two bottom ends of the first chain (311) are both connected around a first large sprocket (313); the first large sprocket (313) is fixedly connected inside with a first shaft rod (312) ), a second shaft (315) and a third shaft (317) are respectively arranged inside and outside the top end of the first chain (311), the outer sides of the first shaft (312) and the third shaft (317) are rotatably connected to small sprockets (318), a fixing frame (316) is arranged at the end of the second shaft (315), the first welding group (31) and the second welding group (32) are provided with protective covers, and the protective covers are fixedly connected to the top of the main body (1), and the fixing frame (316) is fixedly connected to the top of the protective cover.

10. The precision welding equipment for steel pipe processing according to claim 9, characterized in that: The second welding group (32) comprises a first rotating shaft (321) and a second rotating shaft (328); a second large sprocket (322) is fixedly connected to one side of the first rotating shaft (321) and the second rotating shaft (328); a second chain (323) is connected around the outer side of the second large sprocket (322); a large belt pulley (326) is arranged on the outer side of the first rotating shaft (321); a belt (327) is connected to the outer side of the large belt pulley (326); a small belt pulley (325) is arranged inside the belt (327); the inside of the small belt pulley (325) is fixedly connected to the first shaft rod (312) on the right side of the first welding group (31); the first welding group (31) is connected to the outer side of the large belt pulley (326); A synchronous motor (314) is inserted into a fixed end of the first shaft (312) on the left side of the connection group (31); the synchronous motor (314) is located outside the protective cover; the second chain (323) is perpendicular to the inside of the protective cover; the first shaft (312), the second shaft (315), the third shaft (317), the first rotating shaft (321) and the second rotating shaft (328) are rotatably connected to the inside of the protective shell; the outside of the first chain (311) is fixedly connected to a mounting plate (319); the bottom of the mounting plate (319) is fixedly connected to a first welding gun (320); and the outside of the second chain (323) is fixedly connected to a second welding gun (324).

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