Automatic welding device for metal longitudinal welded pipe machining

Abstract

The invention relates to the technical field of metal welding, and discloses an automatic welding device for metal longitudinal welded pipe machining, which comprises a bottom plate, a high-frequency welding machine fixedly mounted on the bottom plate, a heating ring fixedly mounted on the high-frequency welding machine, a conveying device fixedly mounted on the upper side of the bottom plate, and two conveying rollers mounted on the conveying device, an installation block is fixedly installed on the upper side of the bottom plate, a base is fixedly installed on the upper side of the installation block, and a metal pipe needing to be welded is conveyed to the position between the two extrusion rollers through the conveying device, so that the metal pipe needing to be welded can penetrate through the heating ring, and heating treatment can be conducted on the metal pipe needing to be welded; then the straight seam of the metal pipe needing to be welded can be welded through extrusion of the extrusion pipe and the extrusion wheel, the vertical position of the extrusion wheel can be adjusted through back-and-forth rotation of the screw rod, meanwhile, the extrusion wheel applies pressure through the pressure of the pressure spring, and meanwhile, the situation that the metal pipe needing to be welded is deformed due to too large pressure is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of metal welding, in particular to an automatic welding device for processing metal straight seam welded pipes. Background Art

[0002] Straight seam welded pipe is a steel pipe made by rolling a long steel strip of a certain specification into a round tube using a high-frequency welding unit and then welding it through the straight seam. Due to its high hardness and smooth surface, straight seam welded pipe has been widely used in some industries that previously belonged to seamless steel pipe, such as automotive transmission pipes, boiler pressure pipes, oil casing, oil and gas transmission pipes, etc. When welding the straight seam steel pipe blank with existing high-frequency welding machines, the pressure wheel during the welding process is mostly rigidly connected and can only rotate but cannot move up and down. This can lead to insufficient pressure or excessive pressure when the position is not adjusted accurately, causing deformation of the metal pipe. Summary of the Invention

[0003] In response to the deficiencies in the prior art, the present invention provides an automatic welding device for processing metal straight seam welded pipes, which has the advantages of applying pressure to an extrusion wheel through the pressure of a pressure spring, while avoiding deformation of the metal pipe to be welded due to excessive pressure. This solves the problem that when existing high-frequency pipe welding mechanisms weld straight seam steel pipe blanks, the pressure wheels during the welding process are mostly rigidly connected and can only rotate but cannot move up and down, which will lead to insufficient pressure or excessive pressure causing deformation of the metal pipe when the position is not adjusted accurately.

[0004] In order to achieve the above-mentioned purpose of applying pressure to the extrusion wheel through the pressure of the pressure spring and avoiding deformation of the metal pipe to be welded due to excessive pressure, the present invention provides the following technical solution: an automatic welding device for processing metal straight seam welded pipes, comprising a base plate, a high-frequency welding machine is fixedly mounted on the base plate, a heating ring is fixedly mounted on the high-frequency welding machine, a conveying device is fixedly mounted on the upper side of the base plate, two conveying rollers are mounted on the conveying device, a mounting block is fixedly mounted on the upper side of the base plate, a base is fixedly mounted on the upper side of the mounting block, a screw is threaded through the base, a pressure block is sleeved on the screw, a limiting ring is provided below the pressure block, the limiting ring is fixedly sleeved on the screw, a pressure wheel is mounted on the pressure block, a ring plate a is fixedly sleeved on the screw, a pressure spring is fixedly mounted on the lower side of the ring plate a, a ring plate b is fixedly mounted on the lower end of the pressure spring, and a number of movable balls are movably inlaid on the lower side of the ring plate b, each movable ball is in contact with the upper side of the pressure block, two slide rails are fixedly mounted on the left side of the base, the pressure block is connected to the slide rails, and two extrusion rollers are provided on the pressure block.

[0005] Preferably, two annular boxes are provided on the right side of the mounting block, and a number of nozzles are fixedly connected to the inner walls of the two annular boxes. A circular tube a and a circular tube b are provided between the two annular boxes, and the circular tube b is provided in the circular tube a. The two ends of the circular tube a and the circular tube b are respectively connected to the two annular boxes, and a water inlet pipe is fixedly connected to the circular tube a.

[0006] Preferably, a blocking pipe is provided on the water inlet pipe, the water inlet pipe is fixedly passed through the blocking pipe, two support blocks are fixedly installed on the lower side of the blocking pipe, the two support blocks are fixedly connected to the upper side of the bottom plate, a water outlet pipe is fixedly connected to the blocking pipe, and two annular plates are fixedly installed inside the blocking pipe.

[0007] Preferably, two rubber rings a and two rubber rings b are fixedly installed in the two annular boxes, the round tube b is movably sleeved on the two rubber rings a, and the two rubber rings b are movably sleeved on the round tube a.

[0008] Preferably, two small plates are fixedly installed on the inner wall of the blocking tube, and a transmission rod is movably passed through the two small plates, and two gears a are fixedly sleeved on the transmission rod. The transmission rod movably passes through the annular plate on the right of the two annular plates, and a gear b is fixedly sleeved on the transmission rod. A circle of racks is fixedly installed on each of the two annular boxes, and the two racks are respectively engaged with the two gears a.

[0009] Preferably, two brackets a are fixedly installed on the upper side of the bottom plate, and rotating columns are movably passed through the two brackets a, and guide rollers are fixedly sleeved on the two rotating columns. A bracket b is fixedly installed on the upper side of the bottom plate, and a rotating rod is movably passed through the bracket b.

[0010] Preferably, a gear c is fixedly sleeved on the rotating rod, a transmission belt is movably sleeved on the rotating rod and the rotating column, and the gear c is meshed and connected with the gear b.

[0011] Compared with the prior art, the present invention provides an automatic welding device for processing metal straight seam welded pipes, which has the following beneficial effects:

[0012] 1. The automatic welding device for processing metal straight seam welded pipes conveys the metal pipe to be welded between two extrusion rollers through a conveying device, so that the metal pipe to be welded will pass through a heating ring, thereby being heated for the metal pipe to be welded. Then, the metal pipe to be welded will be straight-seam welded by being squeezed by the extrusion tube and the extrusion wheel. The up and down position of the extrusion wheel can be adjusted by the back-and-forth rotation of the screw. At the same time, the extrusion wheel applies pressure through the pressure of the pressure spring, while preventing the metal pipe to be welded from being deformed due to excessive pressure.

[0013] 2. The automatic welding device for processing metal straight seam welded pipes injects water into the circular pipe a through the water inlet pipe, so that the water will enter the two annular boxes through the circular pipe a, and then the water will be sprayed out through the nozzles on the two annular boxes, thereby spraying the water onto the welded metal pipes. In this way, the metal pipes can be quickly and comprehensively cooled by multi-directional water flow.

[0014] 3. The automatic welding device used for processing metal straight seam welded pipes can block splashing water through the blocking pipe and further intercept the splashing water through two annular plates. The intercepted water will be discharged through the outlet pipe, making it convenient for users to centrally recycle water resources, thus avoiding waste of water resources.

[0015] 4. The automatic welding device for processing metal straight seam welded pipes improves the sealing performance between the round pipe b and the two annular boxes through two rubber rings a, thereby preventing a large amount of water from flowing out.

[0016] 5. The automatic welding device used for processing metal straight seam welded pipes drives the guide roller to rotate by moving the metal pipe of the blocking pipe backward, thereby driving the rotating column to rotate, so that the rotating rod can be driven to rotate through the transmission belt, thereby driving the gear C to rotate, thereby driving the gear B to rotate, thereby driving the two gears A to rotate through the transmission rod, thereby driving the two annular boxes to rotate through the two racks, thereby driving the nozzle to rotate, thereby further improving the coverage of the water flow, thereby further improving the cooling effect of the metal pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0018] Figure 2 Schematic diagram of the three-dimensional structure of the pressure block of the present invention;

[0019] Figure 3 Schematic diagram of the cross-sectional three-dimensional structure of the ring plate b of the present invention;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the barrier tube of the present invention;

[0021] Figure 5 Schematic diagram of the three-dimensional structure of the ring box of the present invention;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the circular tube a of the present invention;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide roller of the present invention.

[0024] In the figure: 1. bottom plate; 2. high frequency welding machine; 3. pressure block; 4. slide rail; 5. guide roller; 6. blocking tube; 7. base; 8. mounting block; 9. squeezing roller; 10. heating ring; 11. conveying roller; 12. conveying device; 13. screw; 14. ring plate b; 15. limiting ring; 16. pressure wheel; 17. pressure spring; 18. ring plate a; 19. movable ball; 20. rotating rod; 21. bracket a; 22. rotating column; 23. bracket b; 24. transmission belt; 25. gear c; 26. water inlet pipe; 27. gear b; 28. rubber ring b; 29. water outlet pipe; 30. support block; 31. nozzle; 32. ring box; 33. transmission rod; 34. small plate; 35. gear a; 36. rack; 37. round tube a; 38. rubber ring a; 39. round tube b; 40. ring plate. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings, wherein the same parts are represented by the same figure numerals. It should be noted that the words "front", "rear", "left", "right", "up" and "down", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] For example 1, please refer to Figure 1-Figure 3The present invention provides a technical solution: an automatic welding device for processing metal straight seam welded pipes, comprising a base plate 1, a high-frequency welder 2 is fixedly mounted on the base plate 1, a heating ring 10 is fixedly mounted on the high-frequency welder 2, and when the metal pipe passes through the heating ring 10, it will be heated. A conveying device 12 is fixedly mounted on the upper side of the base plate 1, and two conveying rollers 11 are mounted on the conveying device 12. A mounting block 8 is fixedly mounted on the upper side of the base plate 1, and a base 7 is fixedly mounted on the upper side of the mounting block 8. A screw 13 is threaded through the base 7, and a screw 13 is screwed on the screw 13. A pressure block 3 is sleeved, and a limit ring 15 is set below the pressure block 3. The limit ring 15 is fixedly sleeved on the screw 13. The limit ring 15 can drag the pressure block 3 when the screw 13 is used to adjust the pressure block 3 upward. A pressure wheel 16 is installed on the pressure block 3. A ring plate a18 is fixedly sleeved on the screw 13. A pressure spring 17 is fixedly installed on the lower side of the ring plate a18. A ring plate b14 is fixedly installed on the lower end of the pressure spring 17. A number of movable balls 19 are movably inlaid on the lower side of the ring plate b14. Each movable ball 19 is inlaid with the pressure block 3. The upper side fits together, and the movable ball 19 can reduce the friction between the ring plate b14 and the pressure block 3, so that when the screw 13 is rotated to adjust the position of the pressure block 3, the pressure spring 17 is damaged due to excessive distortion caused by the excessive friction between the ring plate b14 and the pressure block 3. Two slide rails 4 are fixedly installed on the left side of the base 7, and the pressure block 3 is connected to the slide rail 4. The pressure block 3 is provided with a slide rail assembly that can cooperate with the slide rail 4 to enable the pressure block 3 to move up and down to adjust the position. Two squeezing rollers 9 are provided on the pressure block 3, and the metal pipe to be welded is transported between the two squeezing rollers 9 by the conveying device 12. In this way, the metal pipe to be welded will pass through the heating ring 10, so that the metal pipe to be welded can be heated, and then the metal pipe to be welded will be squeezed by the squeezing tube 9 and the squeezing wheel 16 to make the straight seam welded. The up and down position of the squeezing wheel 16 can be adjusted by rotating the screw 13 back and forth. At the same time, the squeezing wheel 16 is pressed by the pressure of the pressure spring 17, while avoiding deformation of the metal pipe to be welded due to excessive pressure;

[0028] Example 2, based on Example 1, please refer to Figure 3-Figure 7, two annular boxes 32 are provided on the right side of the mounting block 8, and a number of nozzles 31 are fixedly connected to the inner walls of the two annular boxes 32. The nozzles 31 are communicated with the annular boxes 32, so that the water in the annular boxes 32 will be sprayed out from the nozzles 31, and a circular pipe a37 and a circular pipe b39 are provided between the two annular boxes 32. The circular pipe b39 is arranged in the circular pipe a37, and the two ends of the circular pipe a37 and the circular pipe b39 are respectively connected to the two annular boxes 32. A water inlet pipe 26 is fixedly connected to the circular pipe a37, and water is injected into the circular pipe a37 through the water inlet pipe 26. The water injected into the circular pipe a37 will flow between the circular pipe a37 and the circular pipe b39, so that the water will enter the two annular boxes 32 through the circular pipe a37, and then the water will be sprayed out through the nozzles 31 on the two annular boxes 32, thereby spraying the water onto the welded metal pipes, so that the metal pipes can be quickly and comprehensively cooled by multi-directional water flow;

[0029] A barrier tube 6 is provided on the water inlet pipe 26, which can prevent water from splashing out from the nozzle 31. The water inlet pipe 26 is fixedly penetrated by the barrier tube 6. Two support blocks 30 are fixedly installed on the lower side of the barrier tube 6. The two support blocks 30 are fixedly connected to the upper side of the bottom plate 1. The barrier tube 6 is fixedly connected to the water outlet pipe 29. Two annular plates 40 are fixedly installed in the barrier tube 6. The welded metal pipe can pass through the two annular plates 40. At the same time, the two annular plates 40 can block the water flow. The splashing water flow can be blocked by the barrier tube 6. At the same time, the splashing water flow is further intercepted by the two annular plates 40. The intercepted water flow will be discharged centrally through the outlet pipe 29, so that it is convenient for users to centrally recycle water resources, thus avoiding the waste of water resources.

[0030] Two rubber rings a38 and b28 are fixedly installed in the two annular boxes 32. The rubber rings a38 and b28 have a certain sealing effect. The round tube b39 is movably connected to the two rubber rings a38, and the two rubber rings b28 are movably connected to the round tube a37. The two rubber rings a38 and b28 can improve the sealing performance between the round tube b39 and the two annular boxes 32, and the two rubber rings b28 can improve the sealing performance between the round tube a37 and the two annular boxes 32, thereby preventing a large amount of water from flowing out.

[0031] Two small plates 34 are fixedly installed on the inner wall of the blocking tube 6, and a transmission rod 33 is movably passed through the two small plates 34. Two gears a35 are fixedly sleeved on the transmission rod 33. The transmission rod 33 movably passes through the ring plate 40 on the right of the two annular plates 40, and a gear b27 is fixedly sleeved on the transmission rod 33. A circle of racks 36 are fixedly installed on the two annular boxes 32, and the two racks 36 are respectively meshed with the two gears a35. The rotation of the gear a35 can drive the rack 36 to rotate, thereby driving the corresponding annular box 32 to rotate. Two brackets a21 are fixedly installed on the upper side of the bottom plate 1, and the rotating columns 22 are movably passed through the two brackets a21. The two rotating columns 22 are fixedly sleeved with guide rollers 5. When the metal pipe passes through, the guide rollers 5 are driven to rotate, thereby driving the rotating column 22 to rotate. A bracket b23 is fixedly installed on the upper side of the bottom plate 1, and a The rotating rod 20 has a gear c25 fixedly sleeved on it, and a transmission belt 24 movably sleeved on the rotating rod 20 and the rotating column 22. The transmission belt 24 can drive the rotating rod 20 to rotate when the rotating column 22 rotates, and the gear c25 is meshed with the gear b27. The rotation of the gear c25 can drive the gear b27 to rotate, and the metal tube of the blocking tube 6 moves backward, which will drive the guide roller 5 to rotate, thereby driving the rotating column 22 to rotate, so that the rotating rod 20 can be driven to rotate through the transmission belt 24, thereby driving the gear c25 to rotate, thereby driving the gear b27 to rotate, and thus driving the two gears a35 to rotate through the transmission rod 33, so that the two annular boxes 32 can be driven to rotate through the two racks 36, thereby driving the nozzle 31 to rotate, so that the coverage of the water flow can be further improved, thereby further improving the cooling effect of the metal tube.

[0032] During use, the first step is to convey the metal tube to be welded between the two extrusion rollers 9 through the conveying device 12, so that the metal tube to be welded will pass through the heating ring 10, so that the metal tube to be welded can be heated, and then the metal tube to be welded will be squeezed by the extrusion tube 9 and the extrusion wheel 16 to make the straight seam welded, and the up and down position of the extrusion wheel 16 can be adjusted by the back and forth rotation of the screw 13. At the same time, the pressure of the pressure spring 17 is used to apply pressure to the extrusion wheel 16, while avoiding deformation of the metal tube to be welded due to excessive pressure.

[0033] Step 2: Inject water into the circular tube a37 through the water inlet pipe 26, so that the water will enter the two annular boxes 32 through the circular tube a37, and then the water will be sprayed out through the nozzles 31 on the two annular boxes 32, thereby spraying the water onto the welded metal pipes, so that the metal pipes can be quickly and comprehensively cooled by multi-directional water flow.

[0034] Step 3: The splashing water flow can be blocked by the blocking pipe 6, and the splashing water flow is further intercepted by the two annular plates 40. The intercepted water flow will be discharged through the outlet pipe 29, so as to facilitate the user to centrally recycle water resources, thus avoiding the waste of water resources.

[0035] Step 4: The two rubber rings a38 are used to improve the sealing performance between the round tube b39 and the two annular boxes 32. The two rubber rings b28 are used to improve the sealing performance between the round tube a37 and the two annular boxes 32, thereby preventing a large amount of water from flowing out.

[0036] Step 5: The backward movement of the metal tube through the blocking tube 6 will drive the guide roller 5 to rotate, thereby driving the rotating column 22 to rotate, so that the rotating rod 20 can be driven to rotate through the transmission belt 24, thereby driving the gear c25 to rotate, thereby driving the gear b27 to rotate, thereby driving the two gears a35 to rotate through the transmission rod 33, thereby driving the two annular boxes 32 to rotate through the two racks 36, thereby driving the nozzle 31 to rotate, thereby further improving the coverage of the water flow, thereby further improving the cooling effect of the metal tube.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for processing metal straight seam welded pipes, comprising a base plate (1), characterized in that: A high-frequency welding machine (2) is fixedly mounted on the bottom plate (1), a heating ring (10) is fixedly mounted on the high-frequency welding machine (2), a conveying device (12) is fixedly mounted on the upper side of the bottom plate (1), two conveying rollers (11) are mounted on the conveying device (12), a mounting block (8) is fixedly mounted on the upper side of the bottom plate (1), a base (7) is fixedly mounted on the upper side of the mounting block (8), a screw rod (13) is threaded through the base (7), a pressure block (3) is sleeved on the screw rod (13), a limiting ring (15) is provided below the pressure block (3), and the limiting ring (15) is fixedly sleeved on the screw rod (13), a pressure wheel (16) is installed on the pressure block (3), a ring plate a (18) is fixedly sleeved on the screw (13), a pressure spring (17) is fixedly installed on the lower side of the ring plate a (18), a ring plate b (14) is fixedly installed on the lower end of the pressure spring (17), and a plurality of movable balls (19) are movably embedded on the lower side of the ring plate b (14), each movable ball (19) is in contact with the upper side of the pressure block (3), two slide rails (4) are fixedly installed on the left side of the base (7), the pressure block (3) is connected to the slide rails (4), and two squeezing rollers (9) are provided on the pressure block (3).

2. The automatic welding device for processing metal straight seam welded pipes according to claim 1, characterized in that: Two annular boxes (32) are provided on the right side of the mounting block (8), and a plurality of nozzles (31) are fixedly connected to the inner walls of the two annular boxes (32). A circular tube a (37) and a circular tube b (39) are provided between the two annular boxes (32), and the circular tube b (39) is provided inside the circular tube a (37). The two ends of the circular tube a (37) and the circular tube b (39) are respectively connected to the two annular boxes (32), and the circular tube a (37) is fixedly connected to a water inlet pipe (26).

3. The automatic welding device for processing metal straight seam welded pipes according to claim 2, characterized in that: A barrier pipe (6) is provided on the water inlet pipe (26), the water inlet pipe (26) is fixedly passed through the barrier pipe (6), two support blocks (30) are fixedly installed on the lower side of the barrier pipe (6), both support blocks (30) are fixedly connected to the upper side of the bottom plate (1), a water outlet pipe (29) is fixedly connected to the barrier pipe (6), and two annular plates (40) are fixedly installed inside the barrier pipe (6).

4. The automatic welding device for processing metal straight seam welded pipes according to claim 2, characterized in that: Two rubber rings a (38) and two rubber rings b (28) are fixedly installed in the two annular boxes (32), the round tube b (39) is movably sleeved on the two rubber rings a (38), and the two rubber rings b (28) are movably sleeved on the round tube a (37).

5. The automatic welding device for processing metal straight seam welded pipes according to claim 3, characterized in that: Two small plates (34) are fixedly mounted on the inner side wall of the blocking tube (6). A transmission rod (33) is movably passed through the two small plates (34). Two gears a (35) are fixedly sleeved on the transmission rod (33). The transmission rod (33) movably passes through the right annular plate (40) of the two annular plates (40). A gear b (27) is fixedly sleeved on the transmission rod (33). A circle of racks (36) is fixedly mounted on each of the two annular boxes (32). The two racks (36) are respectively meshed with the two gears a (35).

6. The automatic welding device for processing metal straight seam welded pipes according to claim 5, characterized in that: Two brackets a (21) are fixedly mounted on the upper side of the bottom plate (1), and rotating columns (22) are movably passed through the two brackets a (21). Material guide rollers (5) are fixedly sleeved on the two rotating columns (22). A bracket b (23) is fixedly mounted on the upper side of the bottom plate (1), and a rotating rod (20) is movably passed through the bracket b (23).

7. The automatic welding device for processing metal straight seam welded pipes according to claim 6, characterized in that: A gear c (25) is fixedly sleeved on the rotating rod (20), a transmission belt (24) is movably sleeved on the rotating rod (20) and the rotating column (22), and the gear c (25) is meshedly connected with the gear b (27).

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