Spiral steel pipe port cutting device

Abstract

The utility model discloses a spiral steel pipe port cutting device, which belongs to the technical field of spiral steel pipe processing, and comprises a steel pipe body, a supporting assembly, a cutting assembly, a polishing assembly and a moving assembly for driving the cut steel pipe to move, and the supporting assembly comprises a bottom plate and two rows of supporting seats fixedly connected to the top surface of the bottom plate. According to the spiral steel pipe end opening cutting device, the multiple connecting rods are driven by the driving assembly to rotate synchronously, then the moving base is driven to move, and therefore after the moving base lifts a cut steel pipe part and moves by a certain distance, the cut steel pipe part is placed on the rotating wheel, and therefore the cut part and the uncut part of the steel pipe are separated by a certain distance; and then an electric telescopic rod and a bidirectional air cylinder are matched with a grinding block to finish grinding of the port. Compared with an existing device, the problem that the port on the other side needs to be treated by additional steps due to the fact that only the port on one side is polished is solved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spiral steel pipe processing, and particularly relates to a spiral steel pipe port cutting device. Background Art

[0002] Spiral steel pipes are made of strip steel coils, formed by cold extrusion at normal temperature, and welded by an automatic double-wire submerged arc welding process to form spiral-seam steel pipes. During the production process of spiral steel pipes, it is necessary to cut the ports of the spiral steel pipes to obtain a spiral steel pipe that meets the length dimension requirements and has a flat port. In the existing port cutting devices, after cutting, it is necessary to send them to the next working station for grinding, which increases the time of the intermediate transfer link. This is not only time-consuming and inefficient, but also the grinding device additionally increases the occupied space of the workshop.

[0003] For the existing spiral steel pipe port cutting device, such as a spiral steel pipe port cutting device shown in the authorized publication number CN217394288U, which includes a bottom plate, and two supporting rollers are arranged on the bottom plate. When the above patent is used, although it can grind the ports on one side of the spiral steel pipe, since the ports on both sides of the gap after cutting have burrs, the above patent only facilitates grinding the burrs on one side of the port, and the burrs on the other side of the port still need to be further processed, which affects the processing efficiency.

[0004] Therefore, we propose a spiral steel pipe port cutting device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the prior art that it is difficult to grind the ports on both sides simultaneously, and to propose a spiral steel pipe port cutting device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A spiral steel pipe port cutting device includes a steel pipe body, a support assembly, a cutting assembly, a grinding assembly, and a moving assembly for driving the cut steel pipe to move. The support assembly includes a bottom plate, and two rows of support seats fixedly connected to the top surface of the bottom plate. A plurality of rotating wheels are rotatably arranged at the upper ends of the support seats, and the steel pipe body is placed between the plurality of rotating wheels in the two rows;

[0008] One side of the bottom plate is fixedly connected with a column, and the cutting assembly is installed at the upper end of the column and faces the side wall of the steel pipe body;

[0009] The moving component includes a U-shaped fixed seat fixedly arranged between two rows of support seats. A moving seat is arranged above the fixed seat. Symmetrically fixed rollers are provided on both sides of the upper end of the moving seat. A plurality of connecting rods are rotatably arranged on both sides of the lower end of the moving seat, and the other ends of the connecting rods are rotatably connected to the upper ends of the sides of the fixed seat. A driving component for driving the synchronous rotation of the plurality of connecting rods is arranged inside the fixed seat;

[0010] The grinding component includes an electric telescopic rod installed on the top surface of the bottom plate. The top end of the electric telescopic rod is fixedly connected to a two-way cylinder, and grinding blocks are detachably connected to both ends of the two-way cylinder.

[0011] Preferably, when the moving seat is at the highest point of the stroke, the top end of the support roller is higher than the top end of the rotating wheel; when the moving seat is at the lowest point of the stroke, the top end of the support roller is lower than the top end of the rotating wheel.

[0012] Preferably, after the connecting rod rotates one week, the electric telescopic rod is directly below the cutting gap of the steel pipe body.

[0013] Preferably, after the connecting rod rotates one week, the two grinding blocks are simultaneously in contact with the steel pipe bodies on both sides.

[0014] Preferably, the driving component includes worms rotatably arranged on both sides of the upper end inside the fixed seat. A plurality of worm wheels are meshed above the worms, and the worm wheels are connected to the connecting rods on the same side. A synchronizing component for synchronizing the rotation of the two worms is arranged at the lower end inside the fixed seat.

[0015] Preferably, the synchronizing component includes synchronizing rods rotatably arranged on both sides of the lower end inside the fixed seat. Synchronizing wheels are fixedly sleeved on the ends of the synchronizing rods and the ends of the worms. Synchronizing belts for synchronization are arranged between the two synchronizing rods and between the synchronizing rod on the same side and the worm.

[0016] In summary, the technical effects and advantages of the present invention: For this spiral steel pipe port cutting device, the driving component drives the synchronous rotation of a plurality of connecting rods, thereby driving the movement of the moving seat. In this way, after the moving seat lifts and moves a section of the cut steel pipe part and then places it on the rotating wheel, the cut part and the uncut part of the steel pipe are separated by a distance. Then, the electric telescopic rod and the two-way cylinder cooperate with the grinding blocks to complete the grinding of the port. Compared with the existing devices, it avoids the problem that only one side of the port is ground, resulting in the need for additional steps to process the other side of the port, and improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is a front cross-sectional view of the present invention during grinding;

[0019] Figure 3 This is a side view of the present utility model during grinding;

[0020] Figure 4 This is a schematic cross-sectional structure diagram of the fixed seat in the present utility model.

[0021] In the figure: 1, steel pipe body; 2, cutting assembly; 3, bottom plate; 4, support seat; 5, rotating wheel; 6, column; 7, fixed seat; 8, moving seat; 9, support roller; 10, connecting rod; 11, electric telescopic rod; 12, double-acting cylinder; 13, grinding block; 14, worm; 15, worm gear; 16, synchronizing rod; 17, synchronizing wheel; 18, synchronous belt. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Referring to Figures 1-3 , a spiral steel pipe end cutting device, including a steel pipe body 1, a support assembly, a cutting assembly 2, a grinding assembly, and a moving assembly for driving the cut steel pipe to move. The support assembly includes a bottom plate 3 and two rows of support seats 4 fixedly connected to the top surface of the bottom plate 3. A plurality of rotating wheels 5 are rotatably provided at the upper ends of the support seats 4. The steel pipe body 1 is placed between the two rows of a plurality of rotating wheels 5. The side surface of the rotating wheel 5 is tangent to the side surface of the steel pipe body 1, and there can be two pairs or more pairs of driving wheels among the plurality of rotating wheels 5, which are driven to rotate by a rotating motor. The relevant technology of the rotating wheel 5 is prior art and will not be elaborated here.

[0024] A column 6 is fixedly connected to one side of the bottom plate 3, and the cutting assembly 2 is installed at the upper end of the column 6 and faces the side wall of the steel pipe body 1. The cutting assembly 2 is prior art and can adopt saw cutting or thermal cutting. The subsequent description will be made in conjunction with the accompanying drawings using the method of thermal cutting.

[0025] The moving assembly includes a U-shaped fixed seat 7 fixedly arranged between the two rows of support seats 4. A moving seat 8 is arranged above the fixed seat 7. Support rollers 9 are symmetrically and fixedly arranged on both sides of the upper end of the moving seat 8. A plurality of connecting rods 10 are rotatably arranged on both sides of the lower end of the moving seat 8, and the other ends of the connecting rods 10 are rotatably connected to the upper ends of the side surfaces of the fixed seat 7. A driving assembly for driving the plurality of connecting rods 10 to rotate synchronously is arranged inside the fixed seat 7.

[0026] The grinding assembly includes an electric telescopic rod 11 installed on the top surface of the bottom plate 3. The top end of the electric telescopic rod 11 is fixedly connected with a double-acting cylinder 12, and grinding blocks 13 are detachably connected to both ends of the double-acting cylinder 12.

[0027] When the spiral steel pipe end cutting device is in use, the steel pipe is placed on the rotating wheel 5, and the steel pipe body 1 is cut into a cut steel pipe (such as the left part of the steel pipe in Figure 1 ) and an uncut steel pipe (such as the right part of the steel pipe in Figure 1 ). At this time, the driving component drives the synchronous rotation of a plurality of connecting rods 10, thereby driving the movement of the moving seat 8. The supporting roller 9 moves upward accordingly, lifts the cut steel pipe and moves it to the right by a certain distance, then moves downward and places the steel pipe on the rotating wheel 5, so as to separate the cut part and the uncut part of the steel pipe by a distance. At this time, the electric telescopic rod 11 is turned on until the two-way cylinder 12 moves upward to the middle of the cut part and the uncut part of the steel pipe, and then the two-way cylinder 12 is turned on until the two grinding blocks 13 are respectively attached to the ports of the steel pipe body 1 on both sides. At this time, the rotating wheel 5 is driven to rotate, and the steel pipe rotates accordingly, so that the grinding of the steel pipe port can be realized.

[0028] It should be noted that before cutting the steel pipe, a conveying component for conveying the steel pipe body 1 to the rotating wheel 5 and aligning the position to be cut with the position of the cutting component 2 needs to be set. The conveying component is a prior art and will not be elaborated too much.

[0029] When the moving seat 8 is at the highest point of the stroke, the top of the supporting roller 9 is higher than the top of the rotating wheel 5, so as to realize lifting and moving the cut part of the steel pipe body 1. When the moving seat 8 is at the lowest point of the stroke, the top of the supporting roller 9 is lower than the top of the rotating wheel 5, so as to realize that after the steel pipe body 1 moves, it can be placed on the rotating wheel 5, thus facilitating the subsequent grinding step.

[0030] After the connecting rod 10 rotates one week, the electric telescopic rod 11 is located directly below the cutting gap of the steel pipe body 1. This ensures that the electric telescopic rod 11 can drive the two-way cylinder 12 to move upward between the cutting gaps.

[0031] After the connecting rod 10 rotates one week, the two grinding blocks 13 are simultaneously attached to the steel pipe body 1 on both sides. That is to say, after the electric telescopic rod 11 drives the two-way cylinder 12 to move upward, the two-way cylinder 12 is located directly in the middle of the cutting gap of the steel pipe body 1. This facilitates the simultaneous grinding of the two ports by the two grinding blocks 13.

[0032] Refer to Figure 4, the driving component includes a worm 14 rotatably arranged on both sides of the upper end inside the fixed seat 7. A plurality of worm wheels 15 are meshed above the worm 14, and the worm wheels 15 are connected to the same-side connecting rod 10. The rotation of the worm 14 realizes the rotation of the worm wheel 15 and the connecting rod 10, and further realizes the movement of the moving seat 8. Since the worm and worm wheel mechanism has an excellent transmission ratio and a self-locking effect, the worm 14 is selected to cooperate with the worm wheel 15 to form the driving component. A synchronizing component for synchronizing the rotation of the two worms 14 is arranged at the lower end inside the fixed seat 7. The synchronizing component includes synchronizing rods 16 rotatably arranged on both sides of the lower end inside the fixed seat 7. Synchronizing wheels 17 are fixedly sleeved at the ends of the synchronizing rods 16 and the ends of the worms 14. Synchronizing belts 18 for synchronization are arranged between the two synchronizing rods 16 and between the same-side synchronizing rod 16 and the worm 14. The synchronous rotation of the synchronizing rod 16 and the worm 14 is realized by the cooperation of the synchronizing belt 18 and the synchronizing wheel 17. In addition, a driving motor for driving the rotation of one of the synchronizing rods 16 should be fixedly installed outside the fixed seat 7.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A spiral steel pipe end cutting device, comprising a steel pipe body (1), a support assembly, a cutting assembly (2), a grinding assembly, and a moving assembly for driving the cut steel pipe to move, characterized in that, The support assembly includes a bottom plate (3), and two rows of support seats (4) fixedly connected to the top surface of the bottom plate (3). A plurality of rotating wheels (5) are rotatably provided at the upper ends of the support seats (4), and the steel pipe body (1) is placed between the plurality of rotating wheels (5) in the two rows; One side of the bottom plate (3) is fixedly connected with a column (6), and the cutting assembly (2) is installed at the upper end of the column (6) and faces the side wall of the steel pipe body (1); The moving assembly includes a U-shaped fixed seat (7) fixedly arranged between the two rows of support seats (4). A moving seat (8) is arranged above the fixed seat (7). Support rollers (9) are symmetrically and fixedly arranged on both sides of the upper end of the moving seat (8). A plurality of connecting rods (10) are rotatably arranged on both sides of the lower end of the moving seat (8), and the other ends of the connecting rods (10) are rotatably connected to the upper ends of the side surfaces of the fixed seat (7). A driving assembly for driving the plurality of connecting rods (10) to rotate synchronously is arranged inside the fixed seat (7); The grinding assembly includes an electric telescopic rod (11) installed on the top surface of the bottom plate (3). A two-way cylinder (12) is fixedly connected to the top end of the electric telescopic rod (11), and grinding blocks (13) are detachably connected to both ends of the two-way cylinder (12).

2. The spiral steel pipe end cutting device according to claim 1, characterized in that, When the moving seat (8) is at the highest point of the stroke, the top end of the support roller (9) is higher than the top end of the rotating wheel (5); when the moving seat (8) is at the lowest point of the stroke, the top end of the support roller (9) is lower than the top end of the rotating wheel (5).

3. The spiral steel pipe end cutting device according to claim 2, characterized in that, After the connecting rod (10) rotates one week, the electric telescopic rod (11) is directly below the cutting gap of the steel pipe body (1).

4. The spiral steel pipe end cutting device according to claim 3, characterized in that, After the connecting rod (10) rotates one week, the two grinding blocks (13) are simultaneously in contact with the steel pipe body (1) on both sides.

5. The spiral steel pipe end cutting device according to claim 1, characterized in that, The driving assembly includes worms (14) rotatably arranged on both sides of the upper end inside the fixed seat (7). A plurality of worm wheels (15) are meshed above the worms (14), and the worm wheels (15) are connected to the connecting rods (10) on the same side. A synchronizing assembly for synchronizing the rotation of the two worms (14) is arranged at the lower end inside the fixed seat (7).

6. The spiral steel pipe end cutting device according to claim 5, characterized in that, The synchronizing assembly includes synchronizing rods (16) rotatably arranged on both sides of the lower end inside the fixed seat (7). Synchronizing wheels (17) are fixedly sleeved on the ends of the synchronizing rods (16) and the ends of the worms (14). Synchronizing belts (18) for synchronization are arranged between the two synchronizing rods (16) and between the synchronizing rod (16) and the worm (14) on the same side.

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