Strip steel coil welding device

Abstract

The present invention provides a strip steel rolling welding device, comprising a strip steel limiting assembly, a strip steel power assembly, a strip steel outer edge shaping assembly, a rolling device, a round tube heating assembly, an opening shaping assembly, a straight seam welding assembly and a weld scar cutting assembly, which are sequentially arranged. The strip steel outer edge shaping assembly is used to cut the two side edges of the strip steel into oppositely arranged grooves. The strip steel rolling welding device described in the present invention can cut the two side profiles of the strip steel into opposite grooves through the strip steel outer edge shaping assembly. After rolling, the two grooves fit together, and then the fitting grooves are melt-welded by the straight seam welding assembly. During welding, the strip steel body located at the upper groove position is used to release the welding material for molten welding, and the strip steel body located at the lower groove position is used to receive the molten welding material. The molten welding material is self-gathered in the weld seam by gravity and surface tension to ensure the welding quality, and can reduce or avoid the weld scar inside the welded pipe, thereby improving the forming quality.

Description

Technical Field

[0001] The invention belongs to the field of straight seam welded pipes, and in particular relates to a strip steel coil welding device. Background Art

[0002] Straight seam welded pipe is an open steel pipe made of cold rolled steel plate or steel strip, and is obtained by straight seam welding on welding equipment. According to different uses, there are different post-production processes. It can be roughly divided into scaffolding pipes, fluid pipes, wire casings, bracket pipes, guardrail pipes and other types.

[0003] In the prior art, straight seam welded pipes are mainly made by using strip steel to be pressed into a "J" shape on a JCO forming machine through multiple step-by-step stamping, and then the other half of the steel plate is bent in the same way and pressed into a "C" shape, and finally an open "O" shape is formed. The opening is then straight-seam continuously welded by a welding machine, and the inner and outer scars of the weld are trimmed after welding to finally form the pipe. In the prior art, the method of controlling the weld of a round pipe is usually to control the opening spacing after rolling. After welding, the size of the weld and the size of the weld scar are in a disordered state, which affects the welding quality and structural strength of the steel pipe after forming. Summary of the invention

[0004] In view of this, the present invention aims to propose a strip steel coil welding device to solve the problem in the prior art that the size of the weld and the weld scar cannot be effectively controlled, which affects the welding quality and structural strength of the formed steel pipe.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A strip steel rolling welding device comprises a strip steel limiting assembly, a strip steel power assembly, a strip steel outer edge shaping assembly, a rolling device, a round tube heating assembly, an opening shaping assembly, a straight seam welding assembly and a weld scar cutting assembly which are sequentially arranged along the direction of travel of the strip steel body. The strip steel limiting assembly is used for limiting the relative positions of both sides of the strip steel, the strip steel power assembly is used for driving the strip steel to move linearly, the strip steel outer edge shaping assembly is used for cutting both sides of the strip steel into grooves arranged oppositely, the rolling device is used for rolling the strip steel, and the grooves arranged oppositely are matched with each other, the round tube heating assembly is used for heating the rolled strip steel, the opening and closing shaping assembly is used for cutting and shaping the grooves that are matched with each other, and welding is performed through the straight seam welding assembly, and the weld scar cutting assembly is used for cutting the weld scar on the periphery of the steel pipe after the straight seam welding is completed.

[0007] Furthermore, the strip outer edge shaping assembly comprises a first shaping tool and a second shaping tool of the same structure, and the first shaping tool and the second shaping tool are parallel to each other and arranged opposite to each other, the execution end of the first shaping tool is used to cut the lower edge of one side of the strip body, and the execution end of the second shaping tool is used to cut the upper edge of the other side of the strip body;

[0008] Further, the first shaping tool comprises a first support frame, a cutting knife, a first support roller and a side stop roller, the cutting knife, the first support roller and the side stop roller are respectively installed on the first support frame, the cutting knife is arranged opposite to the support roller, the cutting knife is used to cut one side of the strip steel body, the first support roller is used to support the strip steel body during cutting, and the side stop roller and the cutting knife are arranged parallel to each other, and the side stop roller is used to limit the relative position of the other side of the strip steel body;

[0009] Furthermore, the cutting knife is arranged on a first knife seat, and the first knife seat is mounted on a transverse sliding assembly via a longitudinal sliding assembly, and the transverse sliding assembly is mounted on a first supporting frame;

[0010] Further, the longitudinal sliding assembly includes a first screw rod, a first threaded hole is provided on the first tool holder, the outer periphery of the first screw rod is threadedly connected to the first threaded hole, and one end of the first screw rod is rotatably sleeved to the moving end of the transverse sliding assembly, a first sliding hole is provided on the first tool holder, a first guide rod is slidably connected in the first sliding hole, and the first guide rod is fixedly installed to the moving end of the transverse sliding assembly;

[0011] Furthermore, one side of the first knife seat is threadedly connected to one end of a locking screw, and the first support frame is provided with a long hole, the outer periphery of the locking screw can slide in the long hole, and the other end of the locking screw can be clamped on one side of the first support frame;

[0012] Further, the transverse sliding assembly includes a first slide, one end of the first screw is rotatably sleeved on the first slide, one end of the first guide rod is fixedly connected to the first slide, and a second threaded hole is provided on the first slide, the first support frame is rotatably sleeved on the first lead screw, the outer periphery of the first lead screw is threadedly connected to the second threaded hole, and a second slide hole is provided on the first slide, the second slide hole is slidably connected to the second guide rod, and the second guide rod is fixedly installed on the first support frame;

[0013] Furthermore, the support roller and the side stop roller are arranged perpendicular to each other, and the side stop roller is installed on the side wall of the first support frame through the first roller seat, the side wall of the first support frame is rotatably sleeved with the second screw, and one end of the second screw is threadedly connected to the first roller seat, and a third sliding hole is provided on the first support frame, the third sliding hole is slidably connected to the third guide rod, the third guide rod is fixedly installed to the bottom of the first roller seat, and the third guide rod and the second screw are arranged parallel to each other.

[0014] Furthermore, the opening shaping assembly includes a second support frame, a second lead screw is threadedly connected to the second support frame, one end of the second lead screw is rotatably sleeved on the second tool holder, the lower end of the second tool holder is detachably mounted with a shaping tool, a second supporting roller is arranged below the shaping tool, and the second supporting roller is fixedly mounted to the second support frame through a first fine-tuning assembly;

[0015] Furthermore, a first slot is provided on one side of the second knife seat, a limiting support plate is slidably connected in the first slot, and the limiting support plate is fixedly mounted on the second support frame;

[0016] Furthermore, the cross section of the position limiting support plate is a triangular structure;

[0017] Furthermore, the second supporting roller is rotatably connected to the second roller seat, and the second roller seat is fixedly mounted to the execution end of the first fine-tuning assembly, and the periphery of the second supporting roller is provided with an annular groove with an arc-shaped cross-section.

[0018] Furthermore, the straight seam welding assembly includes a third support frame, on which a welding head can be detachably mounted, the execution end of the welding head is used to perform straight seam welding on the circular tube to be welded, a third support roller is arranged below the welding head, and the third support roller is fixedly mounted to the third support frame via a second fine-tuning assembly, and the third support roller is used to lift the circular tube to be welded.

[0019] Furthermore, the weld scar cutting assembly includes a fourth support frame, a fourth screw is rotatably sleeved on the fourth support frame, and a third sliding hole of a polygonal structure is provided on the fourth support frame, a floating slider is slidably connected in the third sliding hole, the upper end of the floating slider is threadedly connected to the fourth screw, a scar cutting head is provided at the lower end of the floating slider, a fourth support roller is provided below the scar cutting head, the fourth support roller is installed on the third fine-tuning assembly, and the third fine-tuning assembly is fixedly installed on the fourth support frame;

[0020] Furthermore, the fourth support roller includes a third roller seat, the cross section of the third roller seat is a U-shaped structure, and a side roller body is respectively arranged on both side walls of the third roller seat, and the two side roller bodies are arranged in a V shape, and the two side roller bodies are used to support the welded round tube, and the inner ring of the side roller body is rotatably sleeved on the central axis, one end of the central axis is hinged to the first support plate, and the other end of the central axis is hinged to the second support plate, and a slide groove is provided at the bottom of the third roller seat, and the outer periphery of the first support plate is slidably connected to the slide groove, and an adjustment groove is provided on the side wall of the third roller seat, and the outer periphery of the second support plate is slidably connected to the adjustment groove, and the third screw is rotatably sleeved on the third roller seat, and the outer periphery of the third screw is threadedly connected to the second support plate;

[0021] Furthermore, a support rod is arranged at the lower end of the floating slider, a floating seat is arranged below the support rod, the floating seat is rotatably connected to the support rod through an axle pin, and an abutment groove is arranged at the upper end of the floating seat, a scar removal head can be detachably installed at the lower end of the floating seat, and the lower end of the support rod can abut against the bottom of the abutment groove;

[0022] Furthermore, the lower end surface of the support rod is respectively provided with a plane end surface and a bevel end surface, the plane end surface and the bevel end surface can respectively abut against the bottom of the abutment groove, the plane end surface and the bevel end surface are used to adjust the angle between the scar shaving head and the welded round pipe, and the execution end of the scar shaving head is an arc structure;

[0023] Furthermore, a first spring is installed on the plane end surface of the lower end of the support rod, and a second spring is installed on the inclined end surface. The first spring and the second spring are floating structures of the scar shaving head.

[0024] Furthermore, the first fine-tuning component includes a supporting base, a fourth sliding hole with a polygonal structure is provided on the first base, a floating rod is slidably connected in the fourth sliding hole, the upper end of the floating rod is fixedly installed with the second roller seat, the lower end of the floating rod is threadedly connected to the third lead screw, and the outer periphery of the third lead screw is rotatably sleeved on the supporting base, the outer periphery of the third lead screw is fixedly sleeved on the worm gear, and the worm is rotatably sleeved on the supporting base, the worm and the third lead screw are perpendicular to each other, and the outer periphery of the worm is meshed with the outer periphery of the worm gear.

[0025] Compared with the prior art, the strip steel coil welding device of the present invention has the following beneficial effects:

[0026] (1) The strip steel rolling welding device described in the present invention can cut the two side profiles of the strip steel into opposite grooves through the strip steel outer edge shaping component. After rolling, the two grooves fit together, and then the fitting grooves are melt-welded by the straight seam welding component. During welding, the strip steel body located at the upper groove position is used to release the welding material for molten welding, and the strip steel body located at the lower groove position is used to receive the molten welding material. The molten welding material is self-gathered in the weld seam by gravity and surface tension to ensure the welding quality, and can reduce or avoid the weld scar inside the welded pipe, thereby improving the forming quality.

[0027] (2) In the strip coil welding device described in the present invention, the cutting knife is used to cut one side edge of the strip body, the first support roller is used to support the strip body during cutting, and the side stop roller and the cutting knife are arranged parallel to each other. The side stop roller is used to limit the relative position of the other side edge of the strip body. The relative position of the strip body is supported by the side stop roller and the first support roller to prevent the relative position of the strip body from moving during cutting, thereby improving the quality of the edge cutting of the strip body.

[0028] (3) In the strip steel coil welding device described in the present invention, the transverse sliding assembly and the longitudinal sliding assembly are used to drive the first knife seat and the cutting knife to slide transversely and laterally relative to the steel strip body, so as to meet the use of steel strips of different widths and thicknesses, improve the versatility of the device, and facilitate the adjustment of the size to be cut, and the operation is simple.

[0029] (4) In the strip steel coil welding device described in the present invention, the first guide rod is used to limit the longitudinal sliding trajectory of the first knife seat, and then the longitudinal adjustment of the first knife seat is achieved through the relative rotation of the first screw and the first knife seat, and the longitudinal sliding of the first knife seat can be achieved through the pitch of the first screw. The adjustment accuracy is high, and one side of the first knife seat is threadedly connected to one end of the locking screw. When the strip steel body is cut, the relative position of the cutting knife can be locked by the locking screw to prevent the cutting knife from moving and affecting the cutting quality.

[0030] (5) In the strip steel coil welding device described in the present invention, the shaping tool is used to blank the strip steel body located at the upper groove position. Because the strip steel body located at the upper groove position is mainly used for molten welding, the amount of molten welding material and the weld position can be reduced by blanking, which is used by the staff to adjust the weld scar size and weld position.

[0031] (6) The strip steel coil welding device described in the present invention adjusts the relative position of the shaping tool and the open round tube to be shaped by rotating the second lead screw, and in order to prevent the second tool holder from rotating synchronously with the second lead screw, the relative position of the second tool holder is limited by a limit support plate, and the limit support plate can support the relative position of the second tool holder to prevent the shaping tool and the second tool holder from being displaced when the open round tube moves, thereby improving the structural strength of the device.

[0032] (7) In the strip steel coil welding device described in the present invention, the fourth screw is used to adjust the relative positions of the floating slider and the scar-shaving head relative to the straight seam steel pipe. The fourth screw can rotate relative to the fourth support frame and the relative position remains unchanged. The floating slider located in the polygonal third sliding hole can only slide relatively but not rotate relatively. Therefore, the relatively rotating fourth screw can drive the floating slider to slide on the fourth support frame, thereby adjusting the position of the scar-shaving head to meet various usage conditions.

[0033] (8) The strip steel coil welding device described in the present invention has two side rollers arranged in a V-shape, which can meet the production needs of round tubes with different diameters, and can support the two side walls of the round tube, hold the relative position of the round tube, and prevent the round tube from moving when scraping. The V-shaped structure can meet the use requirements of different tube diameters, and the relative angle of the side roller with respect to the round tube can be adjusted by rotating the third screw to meet the support requirements.

[0034] (9) In the strip steel coil welding device described in the present invention, the arc-shaped scar shaving head can rotate relatively on the support rod through a floating seat. The first spring is installed on the flat end face of the lower end of the support rod, and the second spring is installed on the inclined end face. The first spring and the second spring are the floating structure of the scar shaving head, so that the scar shaving head is always in contact with the outer periphery of the round tube. When encountering non-concentric or elliptical sections of the round tube, the first spring or the second spring will be squeezed, so that the execution end of the scar shaving head can achieve a small flexible deflection angle to meet the needs of continuous scar shaving without damaging the scar shaving head. After the process is completed, the round tube is rounded by the subsequent rounding step. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0036] Figure 1 It is a structural schematic diagram of a strip steel coil welding device according to an embodiment of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the first shaping tool of the strip steel coil welding device according to an embodiment of the present invention;

[0038] Figure 3 It is a front view schematic diagram of the second shaping tool of the strip steel coil welding device according to an embodiment of the present invention;

[0039] Figure 4 It is a structural schematic diagram of the opening shaping assembly of the strip steel coil welding device according to an embodiment of the present invention;

[0040] Figure 5 It is a structural schematic diagram of a weld scar cutting assembly of a strip steel coil welding device according to an embodiment of the present invention;

[0041] Figure 6 It is a front view schematic diagram of the third roller seat of the strip steel coil welding device according to an embodiment of the present invention;

[0042] Figure 7 It is a schematic structural diagram of a straight seam welding assembly of a strip steel coil welding device according to an embodiment of the present invention;

[0043] Figure 8 This is a schematic diagram of the structure of the cooperation between the floating seat and the support rod of the strip steel coil welding device according to an embodiment of the present invention;

[0044] Fig. 9 It is a cross-sectional schematic diagram of the cooperation between the floating seat and the support rod of the strip steel coil welding device according to an embodiment of the present invention;

[0045] Fig.10 This is a schematic structural diagram of a support rod of a strip steel coil welding device according to an embodiment of the present invention;

[0046] Fig.11 It is a schematic structural diagram of a straight seam welding assembly of a strip steel coil welding device according to an embodiment of the present invention;

[0047] Fig.12 It is a structural schematic diagram of the first fine-tuning assembly of the strip steel coil welding device according to an embodiment of the present invention;

[0048] Fig.13 It is a schematic diagram of a strip steel body of the strip steel coil welding device according to an embodiment of the present invention, after being cut by a first shaping tool and a second shaping tool to form a groove;

[0049] Fig.14 It is a schematic structural diagram of a round tube to be welded according to an embodiment of the present invention.

[0050] Description of reference numerals:

[0051] 1-strip limit assembly; 2-strip power assembly; 3-strip outer edge shaping assembly; 31-first support frame; 32-cutting knife; 33-first support roller; 34-side stop roller; 35-first knife seat; 36-first screw; 37-first guide rod; 38-locking bolt; 39-first slide; 310-first lead screw; 311-second guide rod; 312-first roller seat; 313-second screw; 314-third guide rod; 4-rolling device; 5-round tube heating assembly; 6-opening shaping assembly; 61-second support frame; 62-second lead screw; 63-second knife seat; 64-shaping knife; 65-second support roller; 66-first fine-tuning assembly; 661-support base; 662-floating rod; 6 63-worm; 67-limit support plate; 7-straight seam welding assembly; 71-third support frame; 72-welding head; 73-third support roller; 74-second fine-tuning assembly; 8-weld scar cutting assembly; 81-fourth support frame; 82-fourth screw; 83-floating slider; 84-scar cutting head; 85-fourth support roller; 86-third fine-tuning assembly; 87-third roller seat; 88-side roller body; 89-first support plate; 810-second support plate; 811-third screw; 812-support rod; 8121-plane end face; 8122-bevel end face; 813-floating seat; 814-axle pin; 815-first spring; 816-second spring; 9-strip steel body; 91-groove; 10-round tube to be welded. DETAILED DESCRIPTION

[0052] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0055] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0056] like Figure 1-Figure 14 As shown, the strip steel rolling welding device comprises a strip steel limiting assembly 1, a strip steel power assembly 2, a strip steel outer edge shaping assembly 3, a rolling device 4, a round tube heating assembly 5, an opening shaping assembly 6, a straight seam welding assembly 7 and a weld scar cutting assembly 8, which are sequentially arranged along the direction of travel of the strip steel body 9. The strip steel limiting assembly 1 is used to limit the relative position of both sides of the strip steel, the strip steel power assembly 2 is used to drive the strip steel to move linearly, the strip steel outer edge shaping assembly 3 is used to cut both side lines of the strip steel into grooves 91 arranged oppositely, the rolling device 4 is used to roll the strip steel, and the grooves 91 arranged oppositely fit each other, the round tube heating assembly 5 is used to heat the rolled strip steel, and the opening and closing shaping assembly is used to cut the grooves that fit each other. 91 is cut and shaped, and welding is performed through the straight seam welding component 7. The weld scar cutting component 8 is used to cut the weld scar on the periphery of the steel pipe completed by straight seam welding. The welding device can cut the two side profiles of the strip into opposite grooves 91 through the strip outer edge shaping component 3. After rolling, the two grooves 91 are matched. Then, the matched grooves 91 are melt-welded through the straight seam welding component 7. During welding, the strip body located at the upper groove 91 is used to release the welding material for molten welding, and the strip body located at the lower groove 91 is used to receive the molten welding material. The molten welding material is self-gathered in the weld seam by gravity and surface tension to ensure the welding quality, and can reduce the weld scar inside the welded pipe and improve the forming quality.

[0057] During implementation, the strip limit assembly 1 is two limit rollers arranged opposite to each other, and the limit rollers can rotate with the linear movement of the left and right sides of the strip body 9, and the two limit rollers can be clamped on both sides of the strip body 9. The strip power assembly 2 is the traveling power of the strip. The strip power assembly 2 includes a power roller and a driven roller, and the power roller and the driven roller are arranged parallel to each other, and the power roller and the driven roller are respectively clamped on the upper and lower sides of the strip. The power roller is fixedly installed on the power motor, and the power roller is driven to rotate by the power motor. The rolling device 4 is a JCO forming machine or other rolling equipment in the prior art. On the JCO forming machine, first, half of the pre-bent strip body 9 is subjected to multiple step stampings to be pressed into a "J" shape, and then the other half of the steel plate is bent in the same way and pressed into a "C" shape, and finally an open "O" shape is formed. The round tube heating assembly 5 is an electromagnetic coil in the prior art, and the open "O" shaped round tube is heated by the electromagnetic coil to eliminate its internal stress and prepare for subsequent welding finalization.

[0058] like Figure 2 and Figure 3 As shown, the strip outer edge shaping assembly 3 includes a first shaping tool and a second shaping tool of the same structure, and the first shaping tool and the second shaping tool are parallel to each other and arranged oppositely, the execution end of the first shaping tool is used to cut the lower edge of one side of the strip body 9, and the execution end of the second shaping tool is used to cut the upper edge of the other side of the strip body 9; the first shaping tool includes a first support frame 31, a cutting knife 32, a first support roller 33 and a side stop roller 34, and the cutting knife 32, the first support roller 33 and the side stop roller are respectively installed on the first support frame 31, and the cutting knife 32 is used to cut the lower edge of the strip body 9. A first support roller 33 is arranged, and the cutting knife 32 is used for cutting one side edge of the strip steel body 9. The first support roller 33 is used for supporting the strip steel body 9 during cutting, and the side stop roller and the cutting knife 32 are arranged parallel to each other, and the side stop roller is used for limiting the relative position of the other side edge of the strip steel body 9. The relative position of the strip steel body 9 is supported by the side stop roller 34 and the first support roller 33 to prevent the relative position of the strip steel body 9 from moving during cutting, thereby improving the quality of the edge cutting of the strip steel body 9, and the cutting knife 32 is provided with an oblique cutting knife 32 opening for cutting the side edge of the steel strip body.

[0059] The cutting knife 32 is arranged on the first knife seat 35, and the first knife seat 35 is installed on the transverse sliding assembly through the longitudinal sliding assembly, and the transverse sliding assembly is installed on the first support frame 31. The transverse sliding assembly and the longitudinal sliding assembly are used to drive the first knife seat 35 and the cutting knife 32 to slide transversely and laterally relative to the steel belt body, so as to meet the use of steel belts of different widths and thicknesses, improve the versatility of the device, and facilitate the adjustment of the size to be cut, and the operation is simple.

[0060] The longitudinal sliding assembly includes a first screw rod 36, a first threaded hole is provided on the first knife seat 35, the outer periphery of the first screw rod 36 is threadedly connected to the first threaded hole, and one end of the first screw rod 36 is rotatably sleeved to the moving end of the transverse sliding assembly, a first sliding hole is provided on the first knife seat 35, and a first guide rod 37 is slidably connected in the first sliding hole. The first guide rod 37 is fixedly installed to the moving end of the transverse sliding assembly, and the first guide rod 37 is used to limit the longitudinal sliding trajectory of the first knife seat 35, and then the first screw rod 36 and the first knife seat 35 are relative to each other. The first knife seat 35 can be adjusted longitudinally by rotation, and the longitudinal sliding of the first knife seat 35 can be achieved through the pitch of the first screw 36, with high adjustment accuracy. One side of the first knife seat 35 is threadedly connected to one end of the locking screw, and a long hole is provided on the first support frame 31. The outer periphery of the locking screw can slide in the long hole, and the other end of the locking screw can be clamped on one side of the first support frame 31. When the strip steel body 9 is cut, the relative position of the cutting knife 32 can be locked by the locking screw to prevent the cutting knife 32 from moving and affecting the cutting quality.

[0061] The transverse sliding assembly includes a first slide 39, one end of the first screw rod 36 is rotatably sleeved on the first slide 39, one end of the first guide rod 37 is fixedly connected to the first slide 39, and a second threaded hole is provided on the first slide 39, the first support frame 31 is rotatably sleeved on the first lead screw 310, the outer periphery of the first lead screw 310 is threadedly connected to the second threaded hole, and a second sliding hole is provided on the first slide 39, the second sliding hole is slidably connected to the second guide rod 311, and the second guide rod 311 is fixedly installed on the first support frame 31, the adjustment principle of the transverse sliding assembly is the same as that of the longitudinal sliding assembly, the second guide rod 311 is used to limit the relative position of the first slide 39, and then the relative position of the first slide 39 is adjusted by the first lead screw 310, so that the first slide 39 drives the first tool holder 35 to slide horizontally.

[0062] The support roller and the side stop roller are arranged perpendicular to each other, and the side stop roller is installed on the side wall of the first support frame 31 through the first roller seat 312, the side wall of the first support frame 31 is rotatably sleeved with the second screw 313, and one end of the second screw 313 is threadedly connected to the first roller seat 312, and a third sliding hole is provided on the first support frame 31, and the third sliding hole is slidably connected to the third guide rod 314, the third guide rod 314 is fixedly installed on the bottom of the first roller seat 312, and the third guide rod 314 and the second screw 313 are arranged parallel to each other, the third guide rod 314 is used to limit the sliding trajectory of the first roller seat 312, and the second screw 313 is used to adjust the relative position of the first roller seat 312 relative to the side of the strip body 9, so as to meet the use of strips of different widths.

[0063] The opening shaping component 6 includes a second support frame 61, on which a second lead screw 62 is threadedly connected, one end of which is rotatably sleeved on a second tool holder 63, and a shaping tool 64 is detachably installed at the lower end of the second tool holder 63. A second support roller 65 is arranged below the shaping tool 64, and the second support roller 65 is fixedly mounted to the second support frame 61 through a first fine-tuning component 66. The shaping tool 64 is used for blanking the strip steel body located at the upper groove 91 position, because the strip steel body located at the upper groove 91 position is mainly used for molten welding, and blanking can reduce the amount of molten welding material and the weld position, which is used for the staff to adjust the weld scar size and weld position. The actual blanking depth and width are set according to demand and will not be repeated here.

[0064] A first slot is provided on one side of the second tool holder 63, and a limit support plate 67 is slidably connected in the first slot. The limit support plate 67 is fixedly mounted on the second support frame 61. When adjusting the relative position of the shaping tool 64 and the open circular tube to be shaped, it is achieved by rotating the second lead screw 62. In order to prevent the second tool holder 63 and the second lead screw 62 from rotating synchronously, the relative position of the second tool holder 63 is limited by the limit support plate 67, and the limit support plate 67 can support the relative position of the second tool holder 63 to prevent the shaping tool 64 and the second tool holder 63 from being displaced when the open circular tube moves, thereby improving the structural strength of the device. In this embodiment, the cross-section of the limit support plate 67 is a triangular structure; the second support roller 65 is rotatably connected to the second roller seat, and the second roller seat is fixedly mounted to the execution end of the first fine-tuning component 66. The periphery of the second support roller 65 is provided with an annular groove with an arc-shaped cross-section.

[0065] The straight seam welding assembly 7 includes a third support frame 71, on which a welding head 72 can be detachably mounted, and the execution end of the welding head 72 is used for straight seam welding of the circular tube 10 to be welded, and a third support roller 73 is arranged below the welding head 72, and the third support roller 73 is fixedly mounted to the third support frame 71 through a second fine-tuning assembly 74, and the third support roller 73 is used for lifting the circular tube 10 to be welded, and the welding head 72 and the straight seam welding of the circular tube in this embodiment are prior arts.

[0066] The weld scar cutting assembly 8 includes a fourth support frame 81, on which a fourth screw rod 82 is rotatably sleeved, and the fourth support frame 81 is provided with a third sliding hole of a polygonal structure, in which a floating slider 83 is slidably connected, and the upper end of the floating slider 83 is threadedly connected to the fourth screw rod 82, and a scar cutting head 84 is arranged at the lower end of the floating slider 83, and a fourth supporting roller 85 is arranged below the scar cutting head 84, and the fourth supporting roller 85 is installed on the third fine-tuning assembly 86, and the third fine-tuning assembly 86 is fixedly installed on the fourth support frame 81, and the fourth screw rod 82 is used to adjust the relative position of the floating slider 83 and the scar cutting head 84 relative to the straight seam steel pipe, and the fourth screw rod 82 can rotate relative to the fourth support frame 81 and the relative position remains unchanged, and the floating slider 83 located in the polygonal third sliding hole can only slide relatively but not rotate relatively, so the relatively rotating fourth screw rod 82 can drive the floating slider 83 to slide on the fourth support frame 81, so as to adjust the position of the scar cutting head 84 to meet a variety of usage conditions.

[0067] The fourth supporting roller 85 includes a third roller seat 87. The cross section of the third roller seat 87 is a U-shaped structure. A side roller body 88 is respectively arranged on the two side walls of the third roller seat 87. The two side roller bodies 88 are arranged in a V shape. The two side roller bodies 88 are used to support the welded round tube. The inner ring of the side roller body 88 rotates and sleeves the central axis. One end of the central axis is hinged to the first supporting plate 89, and the other end of the central axis is hinged to the second supporting plate 810. A slide groove is provided at the bottom of the third roller seat 87. The outer periphery of the first supporting plate 89 is slidably connected to the slide groove. The side wall of the third roller seat 87 is provided with an adjustment groove. The second The periphery of the support plate 810 is slidably connected to the adjustment groove, and the third screw 811 is rotatably sleeved on the third roller seat 87. The periphery of the third screw 811 is threadedly connected to the second support plate 810. The two side rollers 88 arranged in a V-shape can meet the production of round tubes with different diameters, and can support the two side walls of the round tube, hold the relative position of the round tube, and prevent the round tube from moving when scraping. The V-shaped structure can meet the use requirements of different tube diameters. The relative angle of the side roller 88 relative to the round tube can be adjusted by rotating the third screw 811 to meet the support requirements.

[0068] A support rod 812 is arranged at the lower end of the floating slider 83, and a floating seat 813 is arranged below the support rod 812. The floating seat 813 is rotatably connected to the support rod 812 through an axle pin 814, and an abutting groove is arranged at the upper end of the floating seat 813. The scar-shaving head 84 can be detachably installed at the lower end of the floating seat 813. The lower end of the support rod 812 can abut against the bottom of the abutting groove. The floating seat 813 can rotate relative to the support rod 812, and a plane end face 8121 and a bevel end face 8122 are respectively arranged on the end face of the lower end of the support rod 812. The plane end face 8121 and the bevel end face 8122 can abut against the bottom of the abutting groove respectively. The plane end face 8121 and the bevel end face 8122 are used to adjust the angle between the scar-shaving head 84 and the round pipe after welding, and the execution end of the scar-shaving head 84 is Arc-shaped structure, the scar-shaving head 84 with an arc-shaped structure can rotate relatively on the support rod 812 through the floating seat 813 to meet the scar-shaving needs when the linear circular tube is not concentric. The first spring 815 is installed on the plane end face 8121 of the lower end of the support rod 812, and the second spring 816 is installed on the inclined end face 8122. The first spring 815 and the second spring 816 are the floating structure of the scar-shaving head 84, so that the scar-shaving head 84 is always attached to the outer periphery of the circular tube. When encountering non-concentric or elliptical segments of the circular tube, the first spring 815 or the second spring 816 will be squeezed, so that the execution end of the scar-shaving head 84 can achieve a small flexible deflection angle to meet the needs of continuous scar-shaving without damaging the scar-shaving head 84. After the process is completed, the circular tube is made into a perfect circle by the subsequent rounding step.

[0069] like Fig.12 As shown, the first fine-tuning component 66 includes a support base 661, and a fourth sliding hole with a polygonal structure is provided on the first base. A floating rod 662 is slidably connected in the fourth sliding hole. The upper end of the floating rod 662 is fixedly installed on the second roller seat, and the lower end of the floating rod 662 is threadedly connected to the third lead screw, and the outer periphery of the third lead screw is rotatably sleeved on the support base 661. The outer periphery of the third lead screw is fixedly sleeved on the worm gear, and the worm 663 is rotatably sleeved on the support base 661. The worm 663 and the third lead screw are perpendicular to each other, and the outer periphery of the worm 663 is meshed with the outer periphery of the worm gear. The staff can drive the worm gear and the third lead screw to rotate by rotating the worm 663. When the third lead screw rotates, it can drive the floating rod 662 and the second roller seat to rise or fall synchronously, so as to adjust the relative position of the round tube to be supported by the second roller seat. In this embodiment, the structures of the first fine-tuning component 66, the second fine-tuning component 74 and the third fine-tuning component 86 are the same.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Strip steel coil welding device, characterized by: The invention comprises a strip steel limiting assembly (1), a strip steel power assembly (2), a strip steel outer edge shaping assembly (3), a rolling device (4), a round tube heating assembly (5), an opening shaping assembly (6), a straight seam welding assembly (7) and a weld scar cutting assembly (8) which are sequentially arranged along the direction of travel of the strip steel body (9); the strip steel limiting assembly (1) is used to limit the relative position of the two sides of the strip steel; the strip steel power assembly (2) is used to drive the strip steel to move linearly; the strip steel outer edge shaping assembly (3) is used to cut the two side edges of the strip steel into grooves (91) arranged oppositely; the rolling device (4) is used to roll the strip steel, and the grooves (91) arranged oppositely are matched with each other; the round tube heating assembly (5) is used to heat the rolled strip steel; the opening shaping assembly (6) is used to cut and shape the grooves (91) that are matched with each other, and welding is performed through the straight seam welding assembly (7); and the weld scar cutting assembly (8) is used to cut the weld scar on the periphery of the steel pipe after the straight seam welding is completed; The opening shaping component (6) comprises a second support frame (61), a second lead screw (62) is threadedly connected to the second support frame (61), one end of the second lead screw (62) is rotatably sleeved on the second tool seat (63), the lower end of the second tool seat (63) is detachably mounted with a shaping tool (64), a second support roller (65) is arranged below the shaping tool (64), and the second support roller (65) is fixedly mounted on the second support frame (61) through a first fine-tuning component (66); a first slot is arranged on one side of the second tool seat (63), a limiting support plate (67) is slidably connected in the first slot, and the limiting support plate (67) is fixedly mounted on the second support frame (61); the cross section of the limiting support plate (67) is a triangular structure; the second support roller (65) is rotatably connected to the second roller seat, and the second roller seat is fixedly mounted to the execution end of the first fine-tuning component (66), and the outer periphery of the second support roller (65) is provided with an annular groove with an arc-shaped cross section; The first fine-tuning assembly (66) comprises a support base (661). A fourth sliding hole with a polygonal structure is provided on the first base. A floating rod (662) is slidably connected in the fourth sliding hole. The upper end of the floating rod (662) is fixedly mounted with a second roller seat. The lower end of the floating rod (662) is threadedly connected with a third lead screw. The outer periphery of the third lead screw is rotatably sleeved on the support base (661). The outer periphery of the third lead screw is fixedly sleeved on a worm gear. A worm (663) is rotatably sleeved on the support base (661). The worm (663) and the third lead screw are perpendicular to each other, and the outer periphery of the worm (663) is meshed with the outside of the worm gear.

2. The strip steel coil welding device according to claim 1, characterized in that: The strip outer edge shaping assembly (3) comprises a first shaping tool and a second shaping tool of the same structure, wherein the first shaping tool and the second shaping tool are parallel to each other and arranged opposite to each other, the execution end of the first shaping tool is used to cut the lower edge of one side of the strip body (9), and the execution end of the second shaping tool is used to cut the upper edge of the other side of the strip body (9); The first shaping tool comprises a first support frame (31), a cutting knife (32), a first support roller (33) and a side stop roller (34). The cutting knife (32), the first support roller (33) and the side stop roller are respectively installed on the first support frame (31). The cutting knife (32) is arranged opposite to the first support roller (33). The cutting knife (32) is used to cut one side edge of the strip steel body (9). The first support roller (33) is used to support the strip steel body (9) during cutting. The side stop roller and the cutting knife (32) are arranged parallel to each other. The side stop roller is used to limit the relative position of the other side edge of the strip steel body (9).

3. The strip steel coil welding device according to claim 2, characterized in that: The cutting knife (32) is arranged on the first knife seat (35), and the first knife seat (35) is installed on the transverse sliding assembly through the longitudinal sliding assembly, and the transverse sliding assembly is installed on the first supporting frame (31); The longitudinal sliding assembly comprises a first screw rod (36), a first threaded hole is provided on the first knife seat (35), the outer periphery of the first screw rod (36) is threadedly connected to the first threaded hole, and one end of the first screw rod (36) is rotatably sleeved to the movable end of the transverse sliding assembly, a first sliding hole is provided on the first knife seat (35), a first guide rod (37) is slidably connected in the first sliding hole, and the first guide rod (37) is fixedly installed to the movable end of the transverse sliding assembly.

4. The strip steel coil welding device according to claim 3, characterized in that: One side of the first knife seat (35) is threadedly connected to one end of the locking screw, and the first support frame (31) is provided with a long hole, the outer periphery of the locking screw can slide in the long hole, and the other end of the locking screw can be clamped on one side of the first support frame (31); The transverse sliding assembly comprises a first slide (39), one end of the first screw rod (36) is rotatably sleeved on the first slide (39), one end of the first guide rod (37) is fixedly connected to the first slide (39), and a second threaded hole is provided on the first slide (39), a first lead screw (310) is rotatably sleeved on the first support frame (31), the outer periphery of the first lead screw (310) is threadedly connected to the second threaded hole, and a second slide hole is provided on the first slide (39), a second guide rod (311) is slidably connected in the second slide hole, and the second guide rod (311) is fixedly installed on the first support frame (31); The support roller and the side stop roller are arranged perpendicular to each other, and the side stop roller is installed on the side wall of the first support frame (31) through the first roller seat (312); the side wall of the first support frame (31) is rotatably sleeved with the second screw rod (313), and one end of the second screw rod (313) is threadedly connected to the first roller seat (312); a third sliding hole is provided on the first support frame (31), and the third sliding hole is slidably connected to the third guide rod (314); the third guide rod (314) is fixedly installed on the bottom of the first roller seat (312), and the third guide rod (314) and the second screw rod (313) are arranged parallel to each other.

5. The strip steel coil welding device according to claim 1, characterized in that: The straight seam welding assembly (7) comprises a third support frame (71), a welding head (72) is detachably mounted on the third support frame (71), an execution end of the welding head (72) is used for straight seam welding the circular pipe (10) to be welded, a third support roller (73) is arranged below the welding head (72), and the third support roller (73) is fixedly mounted to the third support frame (71) via a second fine-tuning assembly (74), the third support roller (73) is used for lifting the circular pipe (10) to be welded, and the second fine-tuning assembly (74) has the same structure as the first fine-tuning assembly (66).

6. The strip steel coil welding device according to claim 1, characterized in that: The weld scar cutting assembly (8) comprises a fourth support frame (81), a fourth screw rod (82) is rotatably sleeved on the fourth support frame (81), and a third sliding hole with a polygonal structure is provided on the fourth support frame (81), a floating slider (83) is slidably connected in the third sliding hole, the upper end of the floating slider (83) is threadedly connected to the fourth screw rod (82), a scar cutting head (84) is provided at the lower end of the floating slider (83), a fourth support roller (85) is provided below the scar cutting head (84), the fourth support roller (85) is installed on the third fine-tuning assembly (86), the third fine-tuning assembly (86) is fixedly installed on the fourth support frame (81), and the third fine-tuning assembly (86) has the same structure as the first fine-tuning assembly (66).

7. The strip steel coil welding device according to claim 6, characterized in that: The fourth supporting roller (85) comprises a third roller seat (87). The cross section of the third roller seat (87) is a U-shaped structure. A side roller body (88) is respectively arranged on the two side walls of the third roller seat (87). The two side roller bodies (88) are arranged in a V shape. The two side roller bodies (88) are used to support the welded round tube. The inner ring of the side roller body (88) is rotatably sleeved on the central axis. One end of the central axis is hinged to the first supporting plate (89), and the other end of the central axis is hinged to the second supporting plate (810). A sliding groove is provided at the bottom of the third roller seat (87). The outer periphery of the first supporting plate (89) is slidably connected to the sliding groove. An adjusting groove is provided on the side wall of the third roller seat (87). The outer periphery of the second supporting plate (810) is slidably connected to the adjusting groove. A third screw rod (811) is rotatably sleeved on the third roller seat (87). The outer periphery of the third screw rod (811) is threadedly connected to the second supporting plate (810).

8. The strip steel coil welding device according to claim 6, characterized in that: A support rod (812) is arranged at the lower end of the floating slider (83), a floating seat (813) is arranged below the support rod (812), the floating seat (813) is rotatably connected to the support rod (812) via an axle pin (814), and an abutment groove is arranged at the upper end of the floating seat (813), a scar removal head (84) is detachably mounted at the lower end of the floating seat (813), and the lower end of the support rod (812) can abut against the bottom of the abutment groove; The lower end surface of the support rod (812) is respectively provided with a plane end surface (8121) and a bevel end surface (8122), the plane end surface (8121) and the bevel end surface (8122) can respectively abut against the bottom of the abutment groove, the plane end surface (8121) and the bevel end surface (8122) are used to adjust the angle between the scar shaving head (84) and the welded round pipe, and the execution end of the scar shaving head (84) is an arc structure; The first spring (815) is installed on the plane end surface (8121) at the lower end of the support rod (812), and the second spring (816) is installed on the inclined end surface (8122). The first spring (815) and the second spring (816) are the floating structure of the scar removal head (84).

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