Shearing and butt welding monitoring structure of longitudinal welded pipe mill

Abstract

The utility model relates to a shearing and butt welding monitoring structure of a longitudinal welded pipe mill, which belongs to the technical field of shearing and butt welding and comprises a base, a butt welding monitoring mechanism is arranged at the top of the base, a limiting auxiliary component is arranged in the base, and the butt welding monitoring mechanism comprises a movable frame movably connected with the top of the base. A lifting adjusting assembly used for adjusting the vertical position of the movable frame is arranged in the base. According to the shearing and butt welding monitoring structure of the straight seam pipe welder, shearing and welding of a steel belt can be achieved under the condition that the position of the steel belt to be welded is not replaced, repeated clamping and aligning operation is avoided, the shearing and welding operation efficiency of the steel belt is improved, the steel belt in the shearing and welding process can be detected in real time, and the welding quality is improved. The shearing and welding precision is effectively improved, the mechanism machining assembly is timely controlled to stop machining when welding defects exist, the yield and the consistency of product welding forming are effectively improved, the situation of unstable welding is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shearing butt welding, in particular to a shearing butt welding monitoring structure of a longitudinal submerged arc welded pipe mill. Background Art

[0002] Longitudinal submerged arc welded pipe is a kind of welded steel pipe, which is a pipe obtained by straight seam welding of a steel strip rolled from hot-rolled steel plate, cold-rolled steel plate or steel strip on a welding equipment. It is named because the welding joint of the steel pipe is a straight line. At present, on the production line of processing steel strip into welded pipe, in order to meet the continuity of production, it is often necessary to shear and weld the tail end of the front coil steel strip and the head end of the rear coil steel strip together to connect the front coil steel strip and the rear coil steel strip and improve work efficiency.

[0003] Please refer to a shearing butt welding device for easy calibration with the publication number of CN115533543A. In this patent, it is proposed that "during the process of shearing and butt welding the steel strip, it is necessary for the staff to manually align the steel strip with the shearing knife or welding torch by visual observation, and there are defects that the end of the steel strip needs to be adjusted multiple times during the shearing butt welding process, thus reducing work efficiency". This patent can initially align the steel strip through the provided alignment baffle to reduce the deviation of the end of the steel strip; the feeding table can provide support for the steel strip to be welded, and the limiting part can slide on the feeding table to limit the moving distance of the clamped steel strip, enabling the staff to move the end of the steel strip to a suitable position by controlling the moving distance of the limiting part, thereby aligning the steel strip.

[0004] Although the above patent can ensure the alignment of the steel strip during the shearing and welding process of the steel strip, its shearing and welding need to be processed at different processing positions, and position adjustment is required after shearing to achieve welding, with cumbersome operation and reduced work efficiency. Moreover, the existing longitudinal submerged arc welded pipe mill does not have a real-time monitoring function. When there are protrusions, cracks or defects in the welded steel strip, it is very difficult to detect in the first time, which easily causes insufficient yield, poor consistency in the welding forming of the product, and unstable welding. The practicality is not good. In view of this, this application proposes a shearing butt welding monitoring structure of a longitudinal submerged arc welded pipe mill. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a shearing butt welding monitoring structure of a longitudinal submerged arc welded pipe mill, which has the effects of realizing the shearing and welding operations of the steel strip without changing the position of the steel strip to be welded, can improve the shearing and welding operation efficiency of the steel strip, and can also realize the real-time detection of the shearing and welding processes, improve the processing accuracy, and reduce the unstable welding situation. It solves the problems of cumbersome alignment operation, low efficiency, inconvenient real-time monitoring of the steel strip during the shearing and welding processes, and poor practicality in the prior art.

[0006] To achieve the above object, the present utility model provides the following technical solution: a shearing butt welding monitoring structure of a straight seam welding pipe machine, including a base, on the top of the base is provided a butt welding monitoring mechanism, and inside the base is provided a limiting and assisting component;

[0007] The butt welding monitoring mechanism includes a movable frame movably connected to the top of the base. Inside the base is provided a lifting adjustment component for adjusting the vertical position of the movable frame. Inside the movable frame is movably connected a rotating block. On both the left and right sides of the rotating block are fixedly connected rotating rods rotatably connected to the movable frame. On the outside of the movable frame is provided a rotation adjustment component for driving the rotation of the rotating block. On one side of the rotating block is fixedly connected a fixed tool holder, and inside the fixed tool holder is installed a shearing knife;

[0008] On one side of the fixed tool holder is fixedly connected a high-frequency camera. On the side of the rotating block away from the fixed tool holder is movably connected a welding head. On the front and back sides of the welding head are respectively provided a transmitting transducer and a receiving transducer for transmitting and receiving ultrasonic waves. On the side of the rotating block away from the fixed tool holder is provided a displacement component for adjusting the position of the welding head. On the front of the base is fixedly connected a control box.

[0009] Furthermore, the lifting adjustment component includes fixing plates fixedly connected to both the left and right sides of the movable frame. Inside the base is fixedly connected an electric push rod corresponding to the position of the fixing plate, and the output end of the electric push rod is fixedly connected to the fixing plate.

[0010] Furthermore, the rotation adjustment component includes a rotating gear fixedly connected to the side of the right rotating rod away from the rotating block. On the top of the right fixing plate is fixedly connected a rotating motor, and the output end of the rotating motor is fixedly connected to a driving gear meshing with the rotating gear.

[0011] Furthermore, the movable frame is in an inverted U shape, and inside the base is provided a chip removal groove corresponding to the position of the movable frame.

[0012] Furthermore, the displacement component includes a displacement block fixedly connected to the side of the welding head close to the rotating block. On the side of the rotating block away from the fixed tool holder is fixedly connected a displacement motor, and the output end of the displacement motor is fixedly connected to a displacement screw threadedly connected to the displacement block.

[0013] Furthermore, on the side of the displacement block away from the welding head is fixedly connected a limiting slider, and on the side of the rotating block close to the welding head is provided a limiting sliding groove slidably adapted to the limiting slider.

[0014] Furthermore, the position-limiting auxiliary assembly includes position-limiting plates slidably connected to the top of the base and distributed on the front and rear sides of the movable frame. There are two position-limiting plates on each of the front and rear sides of the movable frame, and an adjusting assembly for adjusting the positions of the position-limiting plates is provided on the top of the base.

[0015] Furthermore, the adjusting assembly includes an adjusting motor fixedly connected to the inside of the base. The output end of the adjusting motor is fixedly connected to a bidirectional screw rod, and a sliding block threadedly connected to the bidirectional screw rod is fixedly connected to the bottom of the position-limiting plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. For the shearing butt-welding monitoring structure of this straight-seam welded pipe machine, by setting the butt-welding monitoring mechanism, the rotating block can be rotated as needed to switch between shearing and welding operations, so as to realize the shearing and welding of the steel strip without changing the position of the steel strip to be welded, thus avoiding repeated clamping and alignment operations, reducing the operation difficulty during the butt-welding of the steel strip, effectively improving the operation efficiency of the shearing and welding of the steel strip, and enhancing the practicability of the device;

[0018] In addition, the high-frequency camera can monitor the shearing situation during the process of the steel strip when the shearing knife is facing downwards, while the ultrasonic wave propagated between the transmitting transducer and the receiving transducer can monitor the situation of the steel strip during the welding process, so as to effectively improve the shearing and welding precision, improve the product quality, and control the mechanism processing component to stop processing in time when there are defects in the welding, effectively improving the finished product rate and the consistency of the welded shape of the product, reducing the situation of unstable welding, and enhancing the practicability of the device.

[0019] 2. For the shearing butt-welding monitoring structure of this straight-seam welded pipe machine, by setting the position-limiting auxiliary assembly, the position-limiting plates on the left and right sides can move towards the closer or farther side as the bidirectional screw rod rotates, so as to clamp the steel strip to be welded and restrict its left and right movement, thus facilitating the alignment of the steel strips on the front and rear sides of the movable frame. Description of the Drawings

[0020] Figure 1 is a cross-sectional view of the structure of the present utility model;

[0021] Figure 2 is a three-dimensional view of the structure of the base of the present utility model;

[0022] Figure 3 is a side cross-sectional view of the movable frame of the present utility model;

[0023] Figure 4 is a cross-sectional view of the structure of the position-limiting plate of the present utility model.

[0024] In the figure: 1. Base; 101. Chip removal groove; 2. Movable frame; 3. Fixed plate; 4. Electric push rod; 5. Rotating block; 6. Rotating rod; 7. Fixed tool holder; 8. Shearing tool; 9. Shifting motor; 10. Shifting screw; 11. Shifting block; 1101. Limit slider; 12. Welding head; 13. High-frequency camera; 14. Transmitting transducer; 15. Receiving transducer; 16. Rotating gear; 17. Rotating motor; 18. Driving gear; 19. Control box; 20. Adjusting motor; 21. Bidirectional screw; 22. Limit plate; 23. Sliding block. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 4 , a shearing butt welding monitoring structure of a straight seam welded pipe machine in this embodiment, includes a base 1, a butt welding monitoring mechanism is arranged on the top of the base 1, and a limit auxiliary component is arranged inside the base 1.

[0027] Embodiment 1: The butt welding monitoring mechanism includes a movable frame 2 movably connected to the top of the base 1. The movable frame 2 is in an inverted U shape. An elevating adjustment component for adjusting the vertical position of the movable frame 2 is arranged inside the base 1. The elevating adjustment component includes fixed plates 3 fixedly connected to the left and right sides of the movable frame 2. An electric push rod 4 corresponding to the position of the fixed plate 3 is fixedly connected inside the base 1, and the output end of the electric push rod 4 is fixedly connected to the fixed plate 3, which facilitates the up and down movement of the movable frame 2 along with the operation of the electric push rod 4.

[0028] Among them, a rotating block 5 is movably connected inside the movable frame 2. Rotating rods 6 rotatably connected to the movable frame 2 are fixedly connected to the left and right sides of the rotating block 5. A chip removal groove 101 corresponding to the position of the movable frame 2 is opened inside the base 1, which facilitates the discharge of chips generated during the processing by using the chip removal groove 101.

[0029] In this embodiment, a rotation adjustment component for driving the rotation of the rotating block 5 is arranged outside the movable frame 2. The rotation adjustment component includes a rotating gear 16 fixedly connected to the side of the right rotating rod 6 away from the rotating block 5. A rotating motor 17 is fixedly connected to the top of the right fixed plate 3. The output end of the rotating motor 17 is fixedly connected to a driving gear 18 meshing with the rotating gear 16, which facilitates the rotation of the rotating block 5 inside the movable frame 2 along with the operation of the rotating motor 17.

[0030] Among them, one side of the rotating block 5 is fixedly connected with a fixed tool holder 7. A shearing blade 8 is installed inside the fixed tool holder 7. A bolt that passes through the shearing blade 8 is threadedly connected inside the fixed tool holder 7, facilitating the simple disassembly, replacement, and operation of the shearing blade 8 using the bolt. One side of the fixed tool holder 7 is fixedly connected with a high-frequency camera 13, facilitating the monitoring of the shearing condition of the steel strip using the provided high-frequency camera 13 when the shearing blade 8 faces downward.

[0031] In this embodiment, a welding head 12 is movably connected to the side of the rotating block 5 away from the fixed tool holder 7. A transmitting transducer 14 and a receiving transducer 15 for transmitting and receiving ultrasonic waves are respectively arranged on the front and rear sides of the welding head 12. The provided transmitting transducer 14 can send ultrasonic waves to the steel strip, and the provided receiving transducer 15 can receive the ultrasonic waves reflected from the steel strip. A displacement assembly for adjusting the position of the welding head 12 is arranged on the side of the rotating block 5 away from the fixed tool holder 7.

[0032] Among them, the displacement assembly includes a displacement block 11 fixedly connected to the side of the welding head 12 close to the rotating block 5. A displacement motor 9 is fixedly connected to the side of the rotating block 5 away from the fixed tool holder 7. The output end of the displacement motor 9 is fixedly connected with a displacement screw rod 10 threadedly connected to the displacement block 11, facilitating the displacement block 11 to drive the welding head 12 to move left and right as the displacement screw rod 10 rotates.

[0033] Among them, a limit slider 1101 is fixedly connected to the side of the displacement block 11 away from the welding head 12. A limit sliding groove slidably adapted to the limit slider 1101 is formed on the side of the rotating block 5 close to the welding head 12, facilitating the limit slider 1101 to extend into the rotating block 5 using the limit sliding groove, thereby restricting the rotation of the displacement block 11 by the sliding of the limit slider 1101 in the limit sliding groove.

[0034] In this embodiment, a control box 19 is fixedly connected to the front of the base 1. An ultrasonic generator and a power regulator connected to the transmitting transducer 14 and the receiving transducer 15 are arranged inside the control box 19. A motion control module electrically connected to each electronic device is also arranged inside the control box 19. The motion control module is a conventional known device with control functions such as a PLC or a single-chip microcomputer, and the motion control module is signal-connected to an external host computer, facilitating the analysis and processing of ultrasonic detection and image data in the case of forming an ultrasonic detection circuit, so as to realize the control of each electronic device according to the data analysis result, and further realize the automatic operation of the steel strip shearing and welding operations. At the same time, it also enables the staff to master the real-time situation of the steel strip during the processing.

[0035] The beneficial effects of the above embodiments are:

[0036] The shearing butt welding monitoring structure of this longitudinal submerged arc welded pipe mill, through the set butt welding monitoring mechanism, can rotate the rotating block 5 as needed to switch between shearing and welding operations, so as to realize the shearing and welding of the steel strip without changing the position of the steel strip to be welded, thus avoiding repeated clamping and alignment operations, reducing the operation difficulty during the butt welding of the steel strip, effectively improving the operation efficiency of the shearing and welding of the steel strip, and enhancing the practicability of the device;

[0037] In addition, the set high-frequency camera 13 can monitor the shearing condition of the steel strip when the shearing knife 8 faces downward, while the ultrasonic wave propagated between the transmitting transducer 14 and the receiving transducer 15 can monitor the condition of the steel strip during the welding process, so as to effectively improve the shearing and welding accuracy, improve the product quality, and when there are defects in the welding, timely control the mechanism processing components to stop processing, effectively improving the finished product rate and the consistency of the welded shape of the product, reducing the situation of unstable welding and enhancing the practicability of the device.

[0038] Embodiment 2: The limit auxiliary component includes limit plates 22 slidably connected to the top of the base 1 and distributed on the front and rear sides of the movable frame 2. There are two limit plates 22 on both the front and rear sides of the movable frame 2, and the top of the base 1 is provided with an adjustment component for adjusting the position of the limit plates 22.

[0039] Among them, the adjustment component includes an adjustment motor 20 fixedly connected to the inside of the base 1. The output end of the adjustment motor 20 is fixedly connected with a bidirectional screw 21. The bottom of the limit plate 22 is fixedly connected with a sliding block 23 threadedly connected to the bidirectional screw 21, which facilitates the sliding block 23 to drive the limit plates 22 on the left and right sides to move towards the adjacent or separated sides as the bidirectional screw 21 rotates.

[0040] The beneficial effects of the above embodiment are as follows:

[0041] The shearing butt welding monitoring structure of this longitudinal submerged arc welded pipe mill, through the set limit auxiliary component, can make the limit plates 22 on the left and right sides move towards the adjacent or separated sides as the bidirectional screw 21 rotates, so as to clamp the steel strip to be welded and limit its left and right movement, thus facilitating the alignment of the steel strips on the front and rear sides of the movable frame 2.

[0042] The working principle of the above embodiment is as follows:

[0043] When using the shearing butt welding monitoring structure of this longitudinal submerged arc welded pipe mill, first, the steel strips to be welded need to be placed on the front and rear sides of the movable frame 2 respectively, and the adjustment motor 20 is operated to drive the bidirectional screw 21 to rotate, so as to facilitate the clamping of the steel strips on both sides by the limit plates 22 on the left and right sides, thus realizing the positioning and installation of the steel strips; after the steel strips are installed, one of the steel strips can be pushed to extend one side of the steel strip under the movable frame 2;

[0044] At this time, the rotation motor 17 is operated to drive the drive gear 18 to rotate, and the drive gear 18 drives the rotating block 5 to rotate by means of the rotating gear 16 until the shearing blade 8 in the movable frame 2 faces vertically downward; then the electric push rod 4 can be operated to drive the movable frame 2 to move up and down, so as to facilitate the shearing of the steel strip by the shearing blade 8;

[0045] After the steel strips on both sides are sheared, the steel strips on both sides can be pushed to make them close. At this time, the rotation motor 17 can be operated to rotate the rotating block 5 until the welding head 12 in the movable frame 2 faces vertically downward, so as to cooperate with the electric push rod 4 to adjust the height of the movable frame 2 and the position adjustment component to adjust the position of the welding head 12 to realize the welding of the steel strip;

[0046] During this process, the provided high-frequency camera 13 can monitor the shearing condition of the steel strip when the shearing blade 8 faces downward, and the ultrasonic wave propagated between the transmitting transducer 14 and the receiving transducer 15 can monitor the condition of the steel strip during the welding process, so as to effectively improve the shearing and welding accuracy, improve the product quality, and when there are defects in the welding, the control mechanism processing component can be timely stopped, effectively improving the finished product rate and the consistency of the welded shape of the product, reducing the unstable welding situation and enhancing the practicability of the device.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shear butt welding monitoring structure of a straight seam pipe welding machine, comprising a base (1), characterized in that: A butt welding monitoring mechanism is arranged on the top of the base (1), and a position limiting auxiliary component is arranged inside the base (1); The butt welding monitoring mechanism comprises a movable frame (2) movably connected to the top of a base (1); a lifting adjustment component for adjusting the vertical position of the movable frame (2) is arranged inside the base (1); a rotating block (5) is movably connected inside the movable frame (2); both left and right sides of the rotating block (5) are fixedly connected to rotating rods (6) rotatably connected to the movable frame (2); a rotating adjustment component for driving the rotating block (5) to rotate is arranged on the outer side of the movable frame (2); a fixed knife seat (7) is fixedly connected to one side of the rotating block (5); a shear knife (8) is installed inside the fixed knife seat (7); A high-frequency camera (13) is fixedly connected to one side of the fixed knife seat (7); a welding head (12) is movably connected to the side of the rotating block (5) away from the fixed knife seat (7); a transmitting transducer (14) and a receiving transducer (15) for transmitting and receiving ultrasonic waves are respectively arranged on the front and rear sides of the welding head (12); a shifting component for adjusting the position of the welding head (12) is arranged on the side of the rotating block (5) away from the fixed knife seat (7); and a control box (19) is fixedly connected to the front of the base (1).

2. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 1 is characterized in that: The lifting and adjusting assembly comprises a fixed plate (3) fixedly connected to the left and right sides of the movable frame (2); an electric push rod (4) corresponding to the position of the fixed plate (3) is fixedly connected inside the base (1); and an output end of the electric push rod (4) is fixedly connected to the fixed plate (3).

3. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 2 is characterized in that: The rotation adjustment assembly comprises a rotating gear (16) fixedly connected to the side of the right rotating rod (6) away from the rotating block (5); a rotating motor (17) is fixedly connected to the top of the right fixed plate (3); and a driving gear (18) meshing with the rotating gear (16) is fixedly connected to the output end of the rotating motor (17).

4. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 1 is characterized in that: The movable frame (2) is in an inverted U shape, and a chip removal groove (101) corresponding to the position of the movable frame (2) is provided inside the base (1).

5. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 1 is characterized in that: The shift assembly comprises a shift block (11) fixedly connected to a side of a welding head (12) close to a rotating block (5); a side of the rotating block (5) away from a fixed knife seat (7) is fixedly connected to a shift motor (9); and an output end of the shift motor (9) is fixedly connected to a shift screw (10) threadedly connected to the shift block (11).

6. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 5 is characterized in that: The side of the displacement block (11) away from the welding head (12) is fixedly connected to a limiting slide block (1101), and the side of the rotation block (5) close to the welding head (12) is provided with a limiting slide groove that is slidably matched with the limiting slide block (1101).

7. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 1 is characterized in that: The position limiting auxiliary component comprises a position limiting plate (22) slidably connected to the top of the base (1) and distributed on the front and rear sides of the movable frame (2); two position limiting plates (22) are arranged on the front and rear sides of the movable frame (2); and an adjustment component for adjusting the position of the position limiting plates (22) is arranged on the top of the base (1).

8. The shear butt welding monitoring structure of a straight seam pipe welding machine according to claim 7 is characterized in that: The adjustment component comprises an adjustment motor (20) fixedly connected to the inside of the base (1); the output end of the adjustment motor (20) is fixedly connected to a bidirectional screw (21); and the bottom of the limit plate (22) is fixedly connected to a sliding block (23) threadedly connected to the bidirectional screw (21).

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