Straight seam steel pipe welding device

Abstract

The invention relates to the technical field of straight seam steel pipe welding, and one embodiment of the invention provides a straight seam steel pipe welding device which comprises two guide frames and a collecting frame, the collecting frame is located on one side of the guide frames, and the straight seam steel pipe welding device further comprises two guide plates, a bottom frame, a moving plate, an aligning plate and a blocking mechanism; the two guide plates are arranged at the top end of the guide frame through the moving mechanism, the bottom frame is located on one side of the guide frame, the two collecting frames are fixedly connected into the bottom frame, the two moving plates are arranged in the bottom frame through the swing mechanism, the two moving plates are provided with the neat beating plates through the adjusting mechanism, and the blocking mechanism is arranged on the guide frame. By means of the technical scheme, the technical problems that in the prior art, when steel pipes fall into a collecting frame in a free falling body mode, the two ends of stacked pipe sections are likely to have the end misalignment phenomenon, manual adjustment of operators is needed, time and labor are wasted, and the packaging efficiency is reduced are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of straight seam steel pipe welding, in particular to a straight seam steel pipe welding device. BACKGROUND

[0002] Straight seam steel pipe is a welded pipe with welds parallel to the longitudinal direction of the pipe. It can be divided into various types according to wall thickness, shape and purpose. The main production processes include high-frequency welding and submerged arc welding. It has the advantages of simple production, high efficiency, low cost and beautiful welding, and is widely used in fluid transportation in water supply, petrochemical and other fields, and structural support in bridges, buildings and other fields.

[0003] The processing of straight seam steel pipe needs to go through multiple core processes. First, the plate is coiled. After the coiling is completed, the longitudinal gap formed by the coiling is welded using welding equipment, thereby obtaining a straight seam steel pipe semi-finished product. After the welding process is completed, the straight seam steel pipe is transferred to a cutting device for cutting to size to obtain a finished pipe section that meets the design length requirements. After cutting, the straight seam steel pipe enters the collection stage. The steel pipe is guided into a special collection rack through a guide frame to stack the pipe sections quantitatively. Then it enters the packaging process. However, during the collection and stacking process, the steel pipe falls into the collection rack in a free-falling manner, which easily causes the end edges of the stacked pipe sections at both ends to be misaligned. The operator needs to manually adjust the two ends of the steel pipe by holding an iron hook, which is time-consuming and labor-intensive, and reduces the packaging efficiency. SUMMARY

[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide a straight seam steel pipe welding device to solve the technical problem that in the prior art, the steel pipe falls into the collection rack in a free-falling manner, which easily causes the end edges of the stacked pipe sections at both ends to be misaligned, and the operator needs to manually adjust, which is time-consuming and labor-intensive, and reduces the packaging efficiency.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a straight seam steel pipe welding device, which comprises a guide frame and a collection rack, the collection rack is located on one side of the guide frame, and further comprises a guide plate, a base frame, a moving plate, a aligning plate and a blocking mechanism, the guide plate is provided with two, both the guide plates are arranged at the top end of the guide frame through a moving mechanism, the moving mechanism is used to drive the spacing adjustment between the two guide plates, the base frame is located on one side of the guide frame, both the collection racks are fixedly connected in the base frame, the moving plate is provided with two, both the moving plates are arranged in the base frame through a swing mechanism, the swing mechanism is used to drive the relative movement of the two moving plates, both the moving plates are provided with the aligning plate through an adjusting mechanism, the adjusting mechanism is used to adjust the moving distance of the aligning plate, and the blocking mechanism is arranged on the guide frame and used to limit the steel pipe on the guide frame.

[0006] In order to guide the steel pipe on the guide frame, the moving mechanism comprises a fixed plate, a sliding rod, a driving plate and a driving assembly, the fixed plate is fixedly connected to the top end of the guide frame, the sliding rod is provided with two, the two sliding rods are both slidingly connected to the fixed plate, the guide plate is fixedly connected to one end of the two sliding rods, the driving plate is fixedly connected to the other end of the two sliding rods, the driving assembly is arranged on the driving plate and is used for driving the guide plate to move on the fixed plate.

[0007] In order to drive the guide plate to move, the driving assembly comprises a driving screw and a first motor, both ends of the driving screw are rotatably connected with the guide plate and the driving plate respectively, a screw hole is formed in the fixed plate, the driving screw is threadedly connected in the screw hole, the first motor is installed on one side of the driving plate, the output end of the first motor penetrates through the driving plate and is fixedly connected with one end of the driving screw.

[0008] In order to drive the two alignment plates to move relatively, the swinging mechanism comprises a guide rod, a sliding carriage, a transmission rod, a linkage rod, a rotating rod and a power assembly, two guide rods are fixedly connected to each of the two collecting frames, the other ends of the plurality of guide rods are fixedly connected with the inner wall of the bottom frame, the sliding carriage is provided with two, the two sliding carriages are slidingly connected to every adjacent two guide rods respectively, two moving plates are fixedly connected to the top end of the two sliding carriages respectively, the opposite sides of the two sliding carriages are rotatably connected with the transmission rods respectively, the linkage rod is rotatably connected with the opposite ends of the two transmission rods respectively, the rotating rod is rotatably connected in the bottom frame, the top end of the rotating rod is fixedly connected with the bottom end of the linkage rod, the power assembly is arranged in the bottom frame and is used for driving the rotating rod and the linkage rod to rotate.

[0009] In order to drive the rotating rod to swing, the power assembly comprises a rotating gear, a toothed plate, a power plate and a transmission assembly, the rotating gear is fixedly connected to the rotating rod, the toothed plate is slidingly arranged in the bottom frame through the sliding assembly, the toothed plate is engaged with the rotating gear, the power plate is fixedly connected to one side of the toothed plate, a driving groove is formed in the power plate, the transmission assembly is arranged in the bottom frame and is used for driving the power plate and the toothed plate to move reciprocatingly.

[0010] In order to drive the toothed plate to move reciprocatingly, the transmission assembly comprises a motor frame, a power frame and a second motor, the motor frame is fixedly connected in the bottom frame, the bottom end of the power frame is rotatably and slidingly arranged in the driving groove, the second motor is installed at the top end of the motor frame, the output end of the second motor penetrates through the motor frame and is fixedly connected with the top end of the power frame.

[0011] In order to increase the stability when the toothed plate slides, the sliding assembly comprises a sliding groove and a sliding block, the sliding groove is formed in the toothed plate, the sliding block is fixedly connected to the inner bottom wall of the bottom frame, the toothed plate is slidingly arranged on the sliding block through the sliding groove.

[0012] In order to adjust the position of the alignment plate, the adjusting mechanism comprises an adjusting frame, a moving screw and a third motor, the adjusting frame is slidingly connected to the moving plate, the two ends of the moving screw are rotatably connected to the alignment plate and the adjusting frame respectively, a screw hole is formed in the moving plate, the moving screw is threadedly connected in the screw hole, and the third motor is installed on the adjusting frame, the output end of the third motor penetrates through the adjusting frame and is fixedly connected to one end of the moving screw.

[0013] In order to block and release the steel pipe on the guide frame, the blocking mechanism comprises a first electric cylinder and a blocking plate, the first electric cylinder is installed on the guide frame, and the blocking plate is fixedly connected to the output end of the first electric cylinder.

[0014] In order to increase the stability of the first electric cylinder, a support plate is fixedly connected to the guide frame, and the first electric cylinder is installed at the top end of the support plate.

[0015] The embodiment of the present disclosure has the following beneficial effects: In the present disclosure, the steel pipes rolling on the guide frame can be collected through the arrangement of the guide plate, the base frame, the moving plate, the alignment plate, the moving mechanism, the swinging mechanism and the blocking mechanism, and the two ends of the collected steel pipes can be quickly aligned through the arrangement of the swinging mechanism and the adjusting mechanism after collection, which is time-saving and labor-saving, and improves the packaging efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0017] Figure 1 The structure schematic diagram of the whole in one embodiment of the present disclosure; Figure 2 The structure schematic diagram of another angle in one embodiment of the present disclosure; Figure 3 The structure schematic diagram of the base frame, the swinging mechanism and the adjusting mechanism in one embodiment of the present disclosure; Figure 4 The structure schematic diagram of the swinging mechanism and the adjusting mechanism in one embodiment of the present disclosure; Figure 5 The structure schematic diagram of the moving mechanism in one embodiment of the present disclosure; Figure 6 The structure schematic diagram of the adjusting mechanism in one embodiment of the present disclosure; Figure 7 For one embodiment of the present disclosure Figure 4 A locally enlarged structural schematic view at B.

[0018] In the figure: 1, guide frame; 2, collection frame; 3, guide plate; 4, bottom frame; 5, moving plate; 6, aligning plate; 7, fixed plate; 8, slide rod; 9, driving plate; 10, driving screw; 11, first motor; 12, guide rod; 13, slide frame; 14, transmission rod; 15, linkage rod; 16, rotating rod; 17, rotating gear; 18, gear plate; 19, power plate; 20, motor frame; 21, power frame; 22, second motor; 23, slide groove; 24, slide block; 25, adjusting frame; 26, moving screw; 27, third motor; 28, first electric cylinder; 29, baffle; 30, support plate. DETAILED DESCRIPTION The present disclosure will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0019] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this article, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0021] In the present disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature includes the vertical direction of the first feature above and oblique above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature includes the vertical direction of the first feature below and oblique below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0022] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0023] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] As shown in Figures 1-7 The present disclosure provides a straight seam steel pipe welding device, which comprises a guide frame 1 and a collecting frame 2, the collecting frame 2 is located on one side of the guide frame 1, and further comprises a guide plate 3, a bottom frame 4, a moving plate 5, a flattening plate 6 and a blocking mechanism. The guide plate 3 is provided with two, both of which are arranged at the top end of the guide frame 1 through a moving mechanism, which is used to drive the spacing adjustment between the two guide plates 3. The bottom frame 4 is located on one side of the guide frame 1, and both collecting frames 2 are fixedly connected in the bottom frame 4. The moving plate 5 is provided with two, both of which are arranged in the bottom frame 4 through a swing mechanism, which is used to drive the relative movement of the two moving plates 5. The flattening plate 6 is arranged on both moving plates 5 through an adjusting mechanism, which is used to adjust the moving distance of the flattening plate 6. The blocking mechanism is arranged on the guide frame 1, which is used to limit the steel pipe on the guide frame 1. Through the arrangement of the guide plate 3, the bottom frame 4, the moving plate 5, the flattening plate 6, the moving mechanism, the swing mechanism and the blocking mechanism, the steel pipe rolled on the guide frame 1 can be collected. After collection, the swing mechanism and the adjusting mechanism can be used to quickly flatten the two ends of the collected steel pipe, which is time-saving and labor-saving, and improves the packaging efficiency.

[0025] The moving mechanism comprises a fixed plate 7, slide rods 8, a driving plate 9 and a driving assembly, the fixed plate 7 is fixedly connected to the top end of the guide frame 1, the slide rods 8 are provided in two, the slide rods 8 are both slidingly connected to the fixed plate 7, the guide plates 3 are fixedly connected to one end of the slide rods 8, the driving plate 9 is fixedly connected to the other end of the slide rods 8, the driving assembly is arranged on the driving plate 9 and is used for driving the guide plates 3 to move on the fixed plate 7, the driving assembly comprises a driving screw 10 and a first motor 11, the driving screw 10 is rotatably connected to the guide plates 3 and the driving plate 9 at both ends, a screw hole is formed in the fixed plate 7, the driving screw 10 is screw-connected in the screw hole, the first motor 11 is installed on one side of the driving plate 9, the output end of the first motor 11 penetrates through the driving plate 9 and is fixedly connected to one end of the driving screw 10, the driving screw 10 is driven to rotate by the first motor 11, the driving plate 9 and the slide rods 8 are driven to move when the driving screw 10 rotates, so that the guide plates 3 are driven to move, and then the distance between the guide plates 3 is adjusted according to the length of the steel pipe.

[0026] The swing mechanism comprises a guide rod 12, a sliding frame 13, a transmission rod 14, a linkage rod 15, a rotating rod 16 and a power assembly, two guide rods 12 are fixedly connected on the two collecting frames 2, the other ends of the plurality of guide rods 12 are fixedly connected with the inner wall of the bottom frame 4, two sliding frames 13 are arranged, and the two sliding frames 13 are slidingly connected on every two adjacent guide rods 12 respectively, two moving plates 5 are fixedly connected at the top ends of the two sliding frames 13 respectively, the opposite sides of the two sliding frames 13 are rotatably connected with the transmission rods 14 respectively, the two ends of the linkage rod 15 are rotatably connected with the opposite ends of the two transmission rods 14 respectively, the rotating rod 16 is rotatably connected in the bottom frame 4, the top end of the rotating rod 16 is fixedly connected with the bottom end of the linkage rod 15, the power assembly is arranged in the bottom frame 4 and is used for driving the rotating rod 16 and the linkage rod 15 to rotate, the power assembly comprises a rotating gear 17, a toothed plate 18, a power plate 19 and a transmission assembly, the rotating gear 17 is fixedly connected on the rotating rod 16, the toothed plate 18 is slidingly arranged in the bottom frame 4 through a sliding assembly, the toothed plate 18 is engaged with the rotating gear 17, the power plate 19 is fixedly connected on one side of the toothed plate 18, a driving groove is formed in the power plate 19, the transmission assembly is arranged in the bottom frame 4 and is used for driving the power plate 19 and the toothed plate 18 to move reciprocatingly, the transmission assembly comprises a motor frame 20, a power frame 21 and a second motor 22, the motor frame 20 is fixedly connected in the bottom frame 4, the bottom end of the power frame 21 is rotatably and slidingly arranged in the driving groove, the second motor 22 is installed at the top end of the motor frame 20, the output end of the second motor 22 penetrates through the motor frame 20 and is fixedly connected with the top end of the power frame 21, the sliding assembly comprises a sliding groove 23 and a sliding block 24, the sliding groove 23 is formed in the toothed plate 18, the sliding block 24 is fixedly connected on the inner bottom wall of the bottom frame 4, and the toothed plate 18 is slidingly arranged on the sliding block 24 through the sliding groove 23, the power frame 21 is driven to rotate by the second motor 22, the power frame 21 rotates in the driving groove formed in the power plate 19, so as to drive the power plate 19 and the toothed plate 18 to move reciprocatingly on the sliding block 24, and then the rotating gear 17 and the rotating rod 16 are driven to rotate, the rotating rod 16 drives the linkage rod 15 to swing when rotating, the linkage rod 15 drives the two transmission rods 14 to drive the moving plates 5 to swing relatively when swinging, so as to drive the two beating plates 6 to beat the steel pipes accumulated on the collecting frames 2 quickly and in alignment.

[0027] The adjusting mechanism comprises an adjusting frame 25, a moving screw 26 and a third motor 27, the adjusting frame 25 is slidingly connected to the moving plate 5, the two ends of the moving screw 26 are respectively rotationally connected to the aligning plate 6 and the adjusting frame 25, the moving plate 5 is provided with a screw hole, the moving screw 26 is threadedly connected to the screw hole, the third motor 27 is installed on the adjusting frame 25, the output end of the third motor 27 penetrates through the adjusting frame 25 and is fixedly connected to one end of the moving screw 26, the third motor 27 drives the moving screw 26 to rotate on the moving plate 5, thereby driving the adjusting frame 25 to move on the moving plate 5, and driving the aligning plate 6 to move, so that the moving distance of the aligning plate 6 is adjusted.

[0028] The blocking mechanism comprises a first electric cylinder 28 and a baffle 29, the first electric cylinder 28 is installed on the guide frame 1, the baffle 29 is fixedly connected to the output end of the first electric cylinder 28, the guide frame 1 is fixedly connected with a supporting plate 30, the first electric cylinder 28 is installed on the top end of the supporting plate 30, when a certain number of steel pipes are collected in the collecting frame 2, the supporting plate 30 is driven by the first electric cylinder 28 to rise, thereby blocking the steel pipes on the guide frame 1, and then the aligning and packing operation is performed, when the collecting frame 2 is emptied, the baffle 29 is driven by the first electric cylinder 28 to fall, so that the steel pipes on the guide frame 1 continue to fall into the collecting frame 2.

[0029] When the welded steel pipes need to be collected and packed, the driving screw 10 is driven by the first motor 11 to rotate, the driving plate 9 and the two slide rods 8 are driven by the driving screw 10 to move, thereby driving the guide plates 3 to move, and the distance between the two guide plates 3 is adjusted according to the length of the steel pipes, the steel pipes are guided into the collecting frame 2 through the guide frame 1 and the two guide plates 3, and the steel pipes are collected, when a certain number of steel pipes are collected in the collecting frame 2, the supporting plate 30 is driven by the first electric cylinder 28 to rise, thereby blocking the steel pipes on the guide frame 1, the moving screw 26 is driven by the third motor 27 to rotate on the moving plate 5, thereby driving the adjusting frame 25 to move on the moving plate 5, and driving the aligning plate 6 to move, so that the moving distance of the aligning plate 6 is adjusted, the power frame 21 is driven by the second motor 22 to rotate, the power plate 19 and the tooth plate 18 are driven by the power frame 21 to reciprocate on the slide block 24 when the power frame 21 rotates in the driving groove formed in the power plate 19, thereby driving the rotating gear 17 and the rotating rod 16 to rotate, the rotating rod 16 drives the linkage rod 15 to swing when the rotating rod 16 rotates, the two transmission rods 14 drive the moving plate 5 to swing relatively when the linkage rod 15 swings, thereby driving the two aligning plates 6 to quickly align the unevenly stacked steel pipes on the collecting frame 2, after the alignment, the operator packs the steel pipes, and then when the collecting frame 2 is emptied, the baffle 29 is driven by the first electric cylinder 28 to fall, so that the steel pipes on the guide frame 1 continue to fall into the collecting frame 2.

[0030] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure rather than limit the present disclosure. Although the present disclosure is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.

Claims

1. A straight seam steel pipe welding device, comprising a guide frame (1) and a collecting frame (2), wherein the collecting frame (2) is located on one side of the guide frame (1), and is characterized in that: Also includes: A guide plate (3), wherein two guide plates (3) are provided, and both guide plates (3) are arranged on the top end of the guide frame (1) via a moving mechanism, and the moving mechanism is used to drive the adjustment of the spacing between the two guide plates (3); A base frame (4), the base frame (4) is located on one side of the guide frame (1), and the two collecting frames (2) are fixedly connected to the base frame (4); A movable plate (5), wherein two movable plates (5) are provided, and both movable plates (5) are arranged in the base frame (4) via a swing mechanism, and the swing mechanism is used to drive the two movable plates (5) to move relative to each other; An aligning plate (6), wherein the two movable plates (5) are both provided with the aligning plate (6) via an adjusting mechanism, and the adjusting mechanism is used to adjust the moving distance of the aligning plate (6); A blocking mechanism is provided on the guide frame (1) and is used to limit the position of the steel pipe on the guide frame (1).

2. A straight seam steel pipe welding device according to claim 1, characterized in that: The moving mechanism comprises: A fixing plate (7), the fixing plate (7) being fixedly connected to the top end of the guide frame (1); Sliding rods (8), two sliding rods (8) are provided, both of the two sliding rods (8) are slidably connected to the fixed plate (7), and the guide plate (3) is fixedly connected to one end of the two sliding rods (8); A driving plate (9), the driving plate (9) being fixedly connected to the other ends of the two sliding rods (8); A drive assembly is provided on the drive plate (9) and is used to drive the guide plate (3) to move on the fixed plate (7).

3. A straight seam steel pipe welding device according to claim 2, characterized in that: The drive assembly includes: A driving screw rod (10), wherein both ends of the driving screw rod (10) are rotatably connected to the guide plate (3) and the driving plate (9), respectively; a screw hole is provided on the fixing plate (7), and the driving screw rod (10) is threadedly connected in the screw hole; A first motor (11), wherein the first motor (11) is mounted on one side of the drive plate (9), and an output end of the first motor (11) passes through the drive plate (9) and is fixedly connected to one end of the drive screw (10).

4. The straight seam steel pipe welding device according to claim 1, characterized in that: The swing mechanism comprises: Guide rods (12), two guide rods (12) are fixedly connected to the two collecting racks (2), and the other ends of the plurality of guide rods (12) are fixedly connected to the inner wall of the base frame (4); Slides (13), wherein two slides (13) are provided, and the two slides (13) are respectively slidably connected to two adjacent guide rods (12), and the two movable plates (5) are respectively fixedly connected to the top ends of the two slides (13); A transmission rod (14), wherein opposite sides of the two slides (13) are both rotatably connected to the transmission rod (14); A linkage rod (15), wherein both ends of the linkage rod (15) are rotatably connected to opposite ends of the two transmission rods (14); A rotating rod (16), the rotating rod (16) is rotatably connected in the base frame (4), and the top end of the rotating rod (16) is fixedly connected to the bottom end of the linkage rod (15); A power assembly is provided in the base frame (4) and is used to drive the rotating rod (16) and the linkage rod (15) to rotate.

5. The straight seam steel pipe welding device according to claim 4, characterized in that: The power assembly includes: a rotating gear (17), the rotating gear (17) being fixedly connected to the rotating rod (16); a tooth plate (18), the tooth plate (18) being slidably disposed in the base frame (4) via a sliding assembly, the tooth plate (18) being engaged with the rotating gear (17); A power plate (19), the power plate (19) is fixedly connected to one side of the tooth plate (18), and a driving groove is formed on the power plate (19); A transmission assembly is provided in the base frame (4) and is used to drive the power plate (19) and the tooth plate (18) to move back and forth.

6. The straight seam steel pipe welding device according to claim 5, characterized in that: The transmission assembly comprises: A motor frame (20), the motor frame (20) being fixedly connected within the base frame (4); A power frame (21), the bottom end of which is rotatably and slidably disposed in the driving groove; A second motor (22), the second motor (22) is mounted on the top of the motor frame (20), and an output end of the second motor (22) passes through the motor frame (20) and is fixedly connected to the top of the power frame (21).

7. The straight seam steel pipe welding device according to claim 6, characterized in that: The sliding assembly comprises: A chute (23), wherein the chute (23) is provided on the tooth plate (18); A slider (24), wherein the slider (24) is fixedly connected to the inner bottom wall of the base frame (4), and the tooth plate (18) is slidably arranged on the slider (24) through a sliding groove (23).

8. The straight seam steel pipe welding device according to claim 1, characterized in that: The regulating mechanism comprises: an adjusting frame (25), the adjusting frame (25) being slidably connected to the movable plate (5); A movable screw rod (26), the two ends of which are rotatably connected to the alignment plate (6) and the adjustment frame (25), respectively; a screw hole is provided on the movable plate (5), and the movable screw rod (26) is threadedly connected in the screw hole; A third motor (27), the third motor (27) is mounted on the adjustment frame (25), and an output end of the third motor (27) passes through the adjustment frame (25) and is fixedly connected to one end of the moving screw (26).

9. The straight seam steel pipe welding device according to claim 1, characterized in that: The blocking mechanism comprises: a first electric cylinder (28), the first electric cylinder (28) being mounted on the guide frame (1); A baffle (29), wherein the baffle (29) is fixedly connected to the output end of the first electric cylinder (28).

10. The straight seam steel pipe welding device according to claim 9, characterized in that: A support plate (30) is fixedly connected to the guide frame (1), and the first electric cylinder (28) is mounted on the top end of the support plate (30).

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