Automatic grinding device for spiral steel pipe production

Abstract

The utility model discloses an automatic coping device for spiral steel pipe production, which belongs to the field of coping devices and comprises a spiral steel pipe body and a coping table, the spiral steel pipe body is fixedly connected to the top surface of the coping table through a fixing mechanism, the fixing mechanism comprises an air cylinder and an arc-shaped pressing plate, and the air cylinder is fixedly connected to the top of a supporting frame on the top surface of the coping table. The arc-shaped pressing plate is fixedly connected to the output end of the air cylinder, a grinding mechanism is further arranged on one side of the top face of the grinding table, and the grinding mechanism comprises a one-way screw rod, a servo rotating part, a moving seat, a rotating motor, a rotating disc, a two-way screw rod, an extension rod and a grinding block. The inner wall of the spiral steel pipe body can be rapidly and automatically ground, compared with a traditional manual grinding mode, manual holding of a grinding device for operation is not needed, the grinding operation is simple, time and labor are saved, the labor intensity of workers is relieved, and the working efficiency is improved. And therefore, the grinding efficiency and the grinding effect of the spiral steel pipe body are improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding devices, and in particular to an automatic grinding device for spiral steel pipe production. Background Technology

[0002] Spiral welded steel pipe is a type of steel pipe made from strip steel coils as raw material, formed by cold extrusion, and welded using an automatic double-wire double-sided submerged arc welding process. The process involves feeding the strip steel into a welding unit, where it is rolled by multiple rollers, gradually forming a circular tube blank with an open gap. The pressure of the extrusion rollers is adjusted to control the weld gap to 1–3 mm, ensuring that both ends of the weld are flush.

[0003] In existing technologies, after the production of spiral welded steel pipes, the inner wall often has impurities, oxide layers, oil stains, rust, and uneven parts such as weld excess. In order to improve the overall quality of spiral welded steel pipes and make them meet the requirements of subsequent processing or use, it is necessary to grind the inner wall of the spiral welded steel pipes. However, at present, when grinding the inner wall of spiral welded steel pipes, it is generally done manually by hand-held grinding tools to gradually grind and repair the inner wall. However, manual grinding is time-consuming and labor-intensive, requiring long periods of holding the grinding tools. In addition, the workload is large due to the long pipeline, and it is highly dependent on the operator's skill level, thus reducing the grinding efficiency of spiral welded steel pipes. Utility Model Content

[0004] The main objective of this invention is to provide an automatic grinding device for spiral steel pipe production, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automatic grinding device for spiral steel pipe production includes a spiral steel pipe body and a grinding table. The spiral steel pipe body is fixedly connected to the top surface of the grinding table by a fixing mechanism, which includes a cylinder and an arc-shaped pressure plate. The cylinder is fixedly connected to the top of a support frame on the top surface of the grinding table, and the arc-shaped pressure plate is fixedly connected to the output end of the cylinder. A grinding mechanism is also provided on one side of the top surface of the grinding table. The grinding mechanism includes a one-way screw, a servo rotor, a moving base, a rotary motor, a rotary disk, a two-way screw, an extension rod, and a grinding block. The one-way screw is connected to the top surface of the grinding table by two... The first rotating rod is movably connected to the top surface of the grinding table and is fixedly connected to the output end of the servo rotation. The moving seat is movably connected to the unidirectional screw through the first screw hole on the side wall, and the rotary motor is fixedly connected to the side wall of the moving seat. The rotating disk is fixedly connected to the output end of the rotary motor, and the bidirectional screw is movably connected to the side wall of the rotating disk through the second rotating rods at both ends. The two extension rods are movably connected to the bidirectional screw through the second screw hole on the top surface of one end, and a grinding block is fixedly connected to the outer wall of the other end of the extension rod.

[0007] Furthermore, a set of symmetrical inverted concave support frames are fixedly installed on the left side of the top surface of the grinding table, and a cylinder is fixedly installed on the top surface of the support frame, with an arc-shaped pressure plate fixedly installed at the output end of the cylinder.

[0008] Furthermore, the top right side of the grinding table has an opening, and guide bars are fixedly installed on the front and rear side walls inside the opening, and first rotating holes are opened on the left and right side walls inside the opening.

[0009] Furthermore, the left and right ends of the one-way screw are respectively fixedly installed with first rotating rods, and the first rotating rods are movably installed in the first rotating hole. The servo rotation is fixedly installed on the right side wall of the grinding table, and the output end of the servo rotation is fixedly installed together with the first rotating rod on the right end. The side wall of the moving seat is provided with a first screw hole and is threadedly connected to the one-way screw through the first screw hole. The front and rear side walls of the moving seat are also provided with guide grooves corresponding to the guide bars.

[0010] Furthermore, the rotary motor is fixedly installed on the right side wall of the movable seat, and a rotating disk is fixedly installed on the output end of the rotary motor. A vertical groove is provided on the left side wall of the rotating disk, and a second rotating hole is provided on the upper and lower end walls of the vertical groove.

[0011] Furthermore, a second rotating rod is fixedly installed at the upper and lower ends of the bidirectional screw, and the second rotating rod is movably installed in the second rotating hole. A knob is fixedly installed on the outer end of one of the second rotating rods. The extension rod is provided with a symmetrical set, and a second screw hole is opened on the top surface of the right end of the extension rod and threadedly connected to the bidirectional screw through the second screw hole. Grinding blocks are also fixedly installed on the opposite side wall of the left end of the symmetrical extension rod, and the outer wall of the grinding block is arc-shaped.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this utility model, the fixing mechanism is set up so that after the spiral steel pipe body is placed on the top surface of the grinding table, the cylinder drive output end on the top surface of the support frame is opened to push the arc-shaped pressure plate downward. After the arc-shaped pressure plate is pressed against both ends of the top surface of the spiral steel pipe body, the spiral steel pipe body can be pressed and fixed on the top surface of the grinding table to prevent shaking or displacement during the grinding of the spiral steel pipe body.

[0014] In conjunction with the grinding mechanism, rotating the knob drives the bidirectional screw to rotate via the second rotating rod. This causes the symmetrical extension rods to move in opposite directions along the bidirectional screw through the second screw hole. The grinding block can then be pressed tightly against the inner wall of the spiral steel pipe body. Simultaneously, activating the servo rotary drive output terminal drives the rotating disk to rotate. This rotating disk then drives the extension rods to rotate, allowing the grinding block to begin grinding the inner wall of the spiral steel pipe body. At the same time, activating the servo rotary drive output terminal drives the unidirectional screw to rotate via the first rotating rod, causing the moving seat to move along the first screw hole. As the unidirectional screw moves to the left, allowing the extension rod to continuously enter the spiral steel pipe body, the grinding block rotates and moves to one side along the inner wall of the spiral steel pipe body to complete the grinding of the inner wall of the spiral steel pipe body. This achieves the purpose of quick and automatic grinding of the inner wall of the spiral steel pipe body. Compared with the traditional manual grinding method, there is no need for manual operation of grinding tools. The grinding operation is simple, time-saving, and labor-saving, and reduces the labor intensity of workers, thereby improving the grinding efficiency and grinding effect of the spiral steel pipe body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the fixing mechanism of this utility model;

[0017] Figure 3 This is a structural breakdown diagram of the grinding mechanism of this utility model;

[0018] Figure 4 This is a structural disassembly diagram of the rotating disk of this utility model.

[0019] In the diagram: 1. Spiral steel pipe body; 2. Grinding table; 3. Fixing mechanism; 4. Grinding mechanism; 5. Support frame; 6. Cylinder; 7. Arc-shaped pressure plate; 8. Movable port; 9. Guide bar; 10. First rotating hole; 11. One-way screw; 12. First rotating rod; 13. Servo rotation; 14. Moving seat; 15. First screw hole; 16. Guide groove; 17. Rotary motor; 18. Rotary disk; 19. Vertical groove; 20. Second rotating hole; 21. Two-way screw; 22. Second rotating rod; 23. Knob; 24. Extension rod; 25. Second screw hole; 26. Grinding block. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] like Figure 1 - Figure 4 As shown, an automatic grinding device for spiral steel pipe production includes a spiral steel pipe body 1 and a grinding table 2. The spiral steel pipe body 1 is fixedly connected to the top surface of the grinding table 2 by a fixing mechanism 3. The fixing mechanism 3 includes a cylinder 6 and an arc-shaped pressure plate 7. The cylinder 6 is fixedly connected to the top of the support frame 5 on the top surface of the grinding table 2, and the arc-shaped pressure plate 7 is fixedly connected to the output end of the cylinder 6. A grinding mechanism 4 is also provided on one side of the top surface of the grinding table 2. The grinding mechanism 4 includes a one-way screw 11, a servo rotation 13, a moving seat 14, a rotary motor 17, a rotary disk 18, a two-way screw 21, an extension rod 24, and a grinding block 26. The one-way screw 11 is connected to the top surface of the grinding table 2 by a cylinder 6 and an arc-shaped pressure plate 7. The first rotating rod 12 is movably connected to the top surface of the grinding table 2, and the first rotating rod 12 is fixedly connected to the output end of the servo rotation 13. The moving seat 14 is movably connected to the unidirectional screw 11 through the first screw hole 15 on the side wall, and the rotary motor 17 is fixedly connected to the side wall of the moving seat 14. The rotating disk 18 is fixedly connected to the output end of the rotary motor 17, and the bidirectional screw 21 is movably connected to the side wall of the rotating disk 18 through the second rotating rods 22 at both ends. The two extension rods 24 are movably connected to the bidirectional screw 21 through the second screw hole 25 on the top surface of one end, and a grinding block 26 is fixedly connected to the outer wall of the other end of the extension rod 24.

[0022] like Figure 2As shown, a set of symmetrical inverted concave support frames 5 are fixedly installed on the left side of the top surface of the grinding table 2, and a cylinder 6 is fixedly installed on the top surface of the support frame 5. An arc-shaped pressure plate 7 is fixedly installed at the output end of the cylinder 6. After the cylinder 6 on the top surface of the support frame 5 is opened, the arc-shaped pressure plate 7 is pushed to press against the two ends of the top surface of the spiral steel pipe body 1, so that the spiral steel pipe body 1 can be pressed and fixed on the grinding table 2 to prevent shaking or displacement during the grinding of the spiral steel pipe body 1 and thus affecting the processing.

[0023] like Figure 2 As shown, a movable opening 8 is provided on the right side of the top surface of the grinding table 2, and guide bars 9 are fixedly installed on the front and rear side walls inside the movable opening 8. The guide bars 9 can guide the moving seat 14 when it moves inside the movable opening 8. A first rotating hole 10 is provided on the left and right side walls inside the movable opening 8. The first rotating hole 10 is used to cooperate with the first rotating rod 12 to realize the rotation operation.

[0024] like Figure 3 As shown, the left and right ends of the one-way screw 11 are respectively fixedly installed with the first rotating rod 12, and the first rotating rod 12 is movably installed in the first rotating hole 10. The servo rotation 13 is fixedly installed on the right side wall of the grinding table 2, and the output end of the servo rotation 13 is fixedly installed together with the first rotating rod 12 on the right end. The side wall of the moving seat 14 is provided with the first screw hole 15 and is threadedly connected to the one-way screw 11 through the first screw hole 15. The front and rear side walls of the moving seat 14 are also provided with guide grooves 16 corresponding to the guide bar 9. When the servo rotation 13 is turned on, the output end drives the one-way screw 11 to rotate through the first rotating rod 12. The moving seat 14 can move to the left side through the first screw hole 15 and the guide groove 16 along the one-way screw 11 and the guide bar 9 in the movable opening 8. In this way, the extension rod 24 can enter the spiral steel pipe body 1 and complete the grinding of the inner wall of the spiral steel pipe body 1 through the grinding block 26.

[0025] like Figure 3 As shown, the rotary motor 17 is fixedly installed on the right side wall of the movable seat 14, and a rotary disk 18 is fixedly installed on the output end of the rotary motor 17. A vertical groove 19 is provided on the left side wall of the rotary disk 18. The vertical groove 19 is used to cooperate with the extension rod 24 to realize the limited movement operation. The upper and lower end walls of the vertical groove 19 are respectively provided with second rotating holes 20. The second rotating holes 20 are used to cooperate with the second rotating rod 22 to realize the rotation operation. After the rotary motor 17 is turned on to drive the output end to drive the rotary disk 18 to rotate, the grinding block 26 on the extension rod 24 can be driven to perform rotational grinding on the inner wall of the spiral steel pipe body 1.

[0026] like Figure 4As shown, the upper and lower ends of the bidirectional screw 21 are respectively fixedly installed with second rotating rods 22, and the second rotating rods 22 are movably installed in the second rotating hole 20. A knob 23 is fixedly installed on the outer end of one of the second rotating rods 22. A symmetrical set of extension rods 24 is provided, and the top surface of the right end of the extension rod 24 is provided with a second screw hole 25, which is threadedly connected to the bidirectional screw 21. Grinding blocks 26 are also fixedly installed on the opposite side of the left end of the symmetrical extension rods 24, and the outer wall of the grinding block 26 is arc-shaped. Rotating the knob 23 drives the bidirectional screw 21 to rotate through the second rotating rod 22, so that the symmetrical extension rods 24 move in opposite directions in the vertical groove 19 along the bidirectional screw 21 through the second screw hole 25 until the grinding block 26 is in close contact with the inner wall of the spiral steel pipe body 1. The inner wall of the spiral steel pipe body 1 can be effectively ground by the grinding block 26.

[0027] The specific operating principle of automatic grinding of the spiral steel pipe body 1 by the combined use of fixing mechanism 3 and grinding mechanism 4 is as follows:

[0028] The spiral steel pipe body 1 to be ground is placed on the top surface of the grinding table 2, and the cylinder 6 installed on the top surface of the support frame 5 is turned on. After the cylinder 6 pushes the arc-shaped pressure plate 7 through the drive output end to press it against both ends of the top surface of the spiral steel pipe body 1, the spiral steel pipe body 1 can be pressed and fixed on the top surface of the grinding table 2 to prevent the spiral steel pipe body 1 from shaking or shifting during grinding. The servo rotation 13 installed on the right side of the grinding table 2 is turned on. The servo rotation 13 drives the first rotating rod 12 to rotate in the first rotating hole 10 through the drive output end, so that the first rotating rod 12 drives the one-way screw 11 to rotate, allowing the moving seat 14 to pass through the first The screw hole 15 and guide groove 16 move to the left along the unidirectional screw 11 and guide bar 9 within the movable opening 8 until the grinding block 26 installed on the outer wall of the left end of the extension rod 24 enters the right end of the spiral steel pipe body 1. Then, the moving seat 14 stops moving. Next, the knob 23 located on the outer wall of the rotating disk 18 is turned. The knob 23 will drive the second rotating rod 22 to rotate within the second rotating hole 20. The second rotating rod 22 will drive the bidirectional screw 21 to rotate within the vertical groove 19, causing the symmetrical extension rods 24 to pass through the second screw hole 25 at the right end and move along the bidirectional screw 21 within the vertical groove 19. Perform the opposite movement operation until the arc-shaped outer wall of the grinding block 26 installed on the left end of the extension rod 24 is tightly pressed against the inner wall of the spiral steel pipe body 1, making the knob 23 unable to rotate. Then, turn on the rotary motor 17 installed on the right side wall of the movable seat 14. The rotary motor 17 will drive the rotating disk 18 to rotate, causing the rotating disk 18 to drive the left symmetrical extension rod 24 to rotate. The extension rod 24 will drive the grinding block 26 to rotate tightly against the inner wall of the spiral steel pipe body 1, and begin grinding the inner wall of the spiral steel pipe body 1 during the rotation. At the same time, turn on the servo rotation 13 again to make the movable seat 14 continue to move to the left. During the movement, the extension rod 24 continuously enters the spiral steel pipe body 1. In this process, the grinding block 26 rotates in a counter-clockwise direction to the left while closely adhering to the inner wall of the spiral steel pipe body 1. In this way, the grinding of the inner wall of the spiral steel pipe body 1 can be gradually completed, thereby achieving the purpose of quick and automatic grinding of the inner wall of the spiral steel pipe body 1. Compared with the traditional manual grinding method, there is no need for manual operation of grinding tools. The operation is simple, time-saving, and labor-saving, and the labor intensity of the workers is reduced, thereby improving the grinding efficiency and grinding effect of the spiral steel pipe body 1.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic grinding device for spiral steel pipe production, comprising a spiral steel pipe body (1) and a grinding table (2), characterized in that: The spiral steel pipe body (1) is fixedly connected to the top surface of the grinding table (2) by a fixing mechanism (3). The fixing mechanism (3) includes a cylinder (6) and an arc-shaped pressure plate (7). The cylinder (6) is fixedly connected to the top of the support frame (5) on the top surface of the grinding table (2). The arc-shaped pressure plate (7) is fixedly connected to the output end of the cylinder (6). A grinding mechanism (4) is also provided on one side of the top surface of the grinding table (2). The grinding mechanism (4) includes a unidirectional screw (11) servo rotation (13), a moving seat (14), a rotary motor (17), a rotating disk (18), a bidirectional screw (21), an extension rod (24), and a grinding block (26). The unidirectional screw (11) is movably connected by the first rotating rods (12) at both ends. Inside the top surface of the grinding table (2), the first rotating rod (12) is fixedly connected to the output end of the servo rotation (13). The moving seat (14) is movably connected to the unidirectional screw (11) through the first screw hole (15) on the side wall. The rotary motor (17) is fixedly connected to the side wall of the moving seat (14). The rotating disk (18) is fixedly connected to the output end of the rotary motor (17). The bidirectional screw (21) is movably connected to the side wall of the rotating disk (18) through the second rotating rods (22) at both ends. The two extension rods (24) are movably connected to the bidirectional screw (21) through the second screw hole (25) on the top surface of one end. A grinding block (26) is also fixedly connected to the outer wall of the other end of the extension rod (24).

2. The automatic grinding device for spiral steel pipe production according to claim 1, characterized in that: A set of symmetrical inverted concave support frames (5) is fixedly installed on the left side of the top surface of the grinding table (2), and a cylinder (6) is fixedly installed on the top surface of the support frame (5). An arc-shaped pressure plate (7) is fixedly installed at the output end of the cylinder (6).

3. The automatic grinding device for spiral steel pipe production according to claim 2, characterized in that: The grinding table (2) has an opening (8) on the right side of its top surface, and guide strips (9) are fixedly installed on the front and rear side walls of the opening (8). The opening (8) has first rotating holes (10) on the left and right side walls of the opening (8).

4. The automatic grinding device for spiral steel pipe production according to claim 3, characterized in that: The left and right ends of the one-way screw (11) are respectively fixedly installed with a first rotating rod (12), and the first rotating rod (12) is movably installed in the first rotating hole (10). The servo rotation (13) is fixedly installed on the right side wall of the grinding table (2), and the output end of the servo rotation (13) is fixedly installed together with the first rotating rod (12) on the right end. The side wall of the moving seat (14) is provided with a first screw hole (15) and is threadedly connected to the one-way screw (11) through the first screw hole (15). The front and rear side walls of the moving seat (14) are also provided with guide grooves (16) corresponding to the guide bar (9).

5. The automatic grinding device for spiral steel pipe production according to claim 4, characterized in that: The rotary motor (17) is fixedly installed on the right side wall of the movable seat (14), and a rotating disk (18) is fixedly installed on the output end of the rotary motor (17). A vertical groove (19) is provided on the left side wall of the rotating disk (18), and a second rotating hole (20) is provided on the upper and lower end walls of the vertical groove (19).

6. The automatic grinding device for spiral steel pipe production according to claim 5, characterized in that: The upper and lower ends of the bidirectional screw (21) are respectively fixedly installed with second rotating rods (22), and the second rotating rods (22) are movably installed in the second rotating hole (20). A knob (23) is fixedly installed on the outer end of one end of the second rotating rod (22). The extension rod (24) is provided with a symmetrical set, and the top surface of the right end of the extension rod (24) is provided with a second screw hole (25) and is threadedly connected to the bidirectional screw (21) through the second screw hole (25). On the opposite side of the left end of the symmetrical extension rod (24), a grinding block (26) is also fixedly installed, and the outer wall of the grinding block (26) is arc-shaped.

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