Pipe end inner wall polishing device

Abstract

The utility model discloses a pipe end inner wall polishing device which comprises a sliding frame, a fourth motor is installed on the sliding frame, and the fourth motor moves front and back, left and right and up and down along with the sliding frame. A polishing wheel is fixed to a rotating shaft of the fourth motor, a polishing belt is wound on the polishing wheel, the fourth motor drives the polishing wheel and the polishing belt to rotate, and the polishing belt polishes the inner wall of the pipe end. The pipeline end polishing device can polish the end of a welded pipeline in a targeted mode, polishing is convenient, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to a pipe end inner wall grinding device, belonging to the technical field of pipe end inner wall grinding. Background Art

[0002] Spiral welded steel pipe refers to a steel pipe with a seam on the surface, which is formed by bending a steel strip or steel plate into a circular, square or other shapes and then welding. According to different welding methods, it can be divided into arc welded pipe, high-frequency or low-frequency resistance welded pipe, gas welded pipe, furnace welded pipe, Bundy pipe, etc. According to the shape of the weld, it can be divided into straight seam welded pipe and spiral welded pipe. Spiral welded steel pipe has lower cost and higher production efficiency than seamless steel pipe. With the development of society, the application of spiral welded steel pipe is becoming more and more extensive. In the production of spiral welded steel pipe, a grinding device is often needed to grind the weld of the spiral welded steel pipe.

[0003] The existing grinding devices generally grind the entire inner wall of the pipe. In actual applications, in some cases, due to the need to connect the two ends of the pipe, only the flatness of the pipe ends is required, and it is not necessary to grind the entire inner wall of the pipe by the existing grinding devices.

[0004] In summary, the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve. Content of the Utility Model

[0005] Aiming at the deficiencies in the background art, the utility model provides a pipe end inner wall grinding device, which can perform targeted grinding on the ends of welded pipes, is convenient for grinding and has high efficiency.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A pipe end inner wall grinding device includes a sliding frame, on which a fourth motor is installed, and the fourth motor moves back and forth, left and right, and up and down along with the sliding frame;

[0008] A grinding wheel is fixed on the rotating shaft of the fourth motor, and a grinding belt is wound around the grinding wheel. The fourth motor drives the grinding wheel and the grinding belt to rotate, and the grinding belt grinds the inner wall of the pipe end.

[0009] Further, a fixed disk is arranged at the rear side of the grinding wheel, a tensioning adjustment device is arranged at the upper end of the fixed disk, a tensioning wheel is installed at the upper end of the tensioning adjustment device, and the grinding belt is wound around the grinding wheel and the tensioning wheel.

[0010] Further, a driven gear is rotatably installed on the rotating shaft, and the driven gear is fixedly connected with the grinding wheel through a connecting rod; a fifth motor is installed on the fourth bottom plate, and the fifth motor drives the driving gear to rotate, and the driving gear meshes with the driven gear for transmission.

[0011] Further, balls are rotatably provided at the lower ends on both sides of the grinding wheel, and the balls are arranged at the lower end of the mounting seat.

[0012] Further, the sliding frame includes a fourth base plate, and a fourth motor is installed on the fourth base plate;

[0013] A top plate and a third base plate are respectively provided on the upper side and the lower side of the fourth base plate, a guide rod is fixed between the top plate and the third base plate, and the fourth base plate slides up and down along the guide rod;

[0014] A third nut is provided on the fourth base plate, a third screw rod is rotatably arranged in the third nut, and the third screw rod is driven by a third motor.

[0015] Further, a second base plate is provided on the lower side of the third base plate, the third base plate is slidably arranged on the second base plate through a second slide rail, a second nut is fixed on the lower surface of the third base plate, the second nut is rotationally matched with a second screw rod, and the second screw rod is driven by a second motor.

[0016] Further, a first base plate is provided on the lower side of the second base plate, the second base plate is slidably arranged on the first base plate through a first slide rail, a first nut is fixed on the lower surface of the second base plate, the first nut is rotationally matched with a first screw rod, and the first screw rod is driven by a first motor.

[0017] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0018] The grinding wheel can move back and forth, left and right, and up and down along with the sliding frame. A grinding belt is wound around the outer side of the grinding wheel, and the grinding wheel rotates rapidly, thereby driving the grinding belt to grind the convex part of the weld seam, rather than grinding the entire inner wall of the pipe end, which is more targeted and improves the grinding efficiency.

[0019] The present utility model will be described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0020] Figure 1 is the front view of the present utility model;

[0021] Figure 2 is Figure 1 the left view of

[0022] Figure 3 is the three-dimensional view of the present utility model.

[0023] In the figure,

[0024] 1 - First bottom plate, 2 - First slide rail, 3 - First screw rod, 4 - First motor, 5 - Second bottom plate, 6 - Second motor, 7 - Second screw rod, 8 - Second slide rail, 9 - Third bottom plate, 10 - Third nut, 11 - Guide rod, 12 - Fourth bottom plate, 13 - Third screw rod, 14 - Top plate, 15 - Third motor, 16 - Fourth motor, 1601 - Rotating shaft, 17 - Driven gear, 18 - Grinding wheel, 19 - Grinding belt, 20 - Tensioning wheel, 21 - Tensioning adjustment device, 22 - Fixed disk, 23 - Ball, 24 - Driving gear, 25 - Fifth motor, 26 - Mounting seat. Detailed implementation mode

[0025] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific implementation mode of the present utility model will now be described with reference to the accompanying drawings.

[0026] As Figures 1-3 shown, the present utility model provides a pipe end inner wall grinding device, including a sliding frame, on which a fourth motor 16 is installed, and the fourth motor 16 moves back and forth, left and right, and up and down with the sliding frame.

[0027] A grinding wheel 18 is fixed on the rotating shaft 1601 of the fourth motor 16, a grinding belt 19 is wound around the grinding wheel 18, the fourth motor 16 drives the grinding wheel 18 and the grinding belt 19 to rotate, and the grinding belt 19 grinds the inner wall of the pipe end.

[0028] A fixed disk 22 is provided at the rear side of the grinding wheel 18, a tensioning adjustment device 21 is provided at the upper end of the fixed disk 22, a tensioning wheel 20 is installed at the upper end of the tensioning adjustment device 21, and the grinding belt 19 is wound around the grinding wheel 18 and the tensioning wheel 20.

[0029] The grinding wheel 18 can move back and forth, left and right, and up and down with the sliding frame, a grinding belt 19 is wound around the outer side of the grinding wheel 18, and the grinding wheel 18 rotates rapidly, thereby driving the grinding belt 19 to grind the convex part of the weld, rather than grinding the entire inner wall of the pipe end, which is more targeted and improves the grinding efficiency.

[0030] A driven gear 17 is rotatably installed on the rotating shaft 1601, and the driven gear 17 is fixedly connected to the grinding wheel through a connecting rod; a fifth motor 25 is installed on the fourth bottom plate 12, the fifth motor 25 drives the driving gear 24 to rotate, and the driving gear 24 meshes with the driven gear 17 for transmission.

[0031] During grinding, adjust the position of the grinding wheel 18, insert the grinding wheel 18 into the inside of one end of the pipeline for grinding. Since the pipeline is circular and the weld is not straight, it is necessary to continuously adjust the position of the grinding wheel 18 for grinding. During the adjustment process, the tensioning wheel 20 located above the tensioning wheel 20 may interfere with the inner wall of the pipeline. At this time, the fifth motor 25 drives the fixed disk 22 to swing through gear transmission, thereby driving the tensioning wheel 20 to swing and avoiding interference with the inner wall of the pipeline.

[0032] Rolling balls 23 are arranged at the lower ends on both sides of the grinding wheel 18, and the rolling balls 23 are arranged at the lower end of the mounting seat 26. When the grinding wheel 18 moves in the pipeline, the rolling balls 23 play a role in limiting, avoiding excessive movement of the grinding wheel 18 and damaging the grinding wheel 18 or the pipeline.

[0033] The sliding frame includes a fourth bottom plate 12, and a fourth motor 16 is installed on the fourth bottom plate 12; a top plate 14 and a third bottom plate 9 are respectively arranged on the upper side and the lower side of the fourth bottom plate 12, a guide rod 11 is fixed between the top plate 14 and the third bottom plate 9, and the fourth bottom plate 12 slides up and down along the guide rod 11; a third nut 10 is arranged on the fourth bottom plate 12, a third screw rod 13 is rotatably arranged in the third nut 10, and the third screw rod 13 is driven by a third motor 15. When the third screw rod 13 rotates, by the relative rotation of the third screw rod 13 and the third nut 10, the fourth bottom plate 12 is pulled to move up and down, thereby driving the grinding wheel 18 to move.

[0034] A second bottom plate 5 is arranged on the lower side of the third bottom plate 9, the third bottom plate 9 is slidably arranged on the second bottom plate 5 through a second slide rail 8, a second nut is fixed on the lower surface of the third bottom plate 9, the second nut is rotationally matched with a second screw rod 7, the second screw rod 7 is driven by a second motor 6, and when the second screw rod 7 rotates, the third bottom plate 9 is pulled to move left and right.

[0035] A first bottom plate 1 is arranged on the lower side of the second bottom plate 5, the second bottom plate 5 is slidably arranged on the first bottom plate 1 through a first slide rail 2, a first nut is fixed on the lower surface of the second bottom plate 5, the first nut is rotationally matched with a first screw rod 3, the first screw rod 3 is driven by a first motor 4, and when the first screw rod 3 rotates, the second bottom plate 5 is pulled to move back and forth.

[0036] The above is an example of the best implementation mode of the present invention, and the parts not described in detail are all common general knowledge of those of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the present invention is also within the protection scope of the present invention.

Claims

1. A pipe end inner wall grinding device, characterized in that: It includes a sliding carriage, on which a fourth motor (16) is installed, and the fourth motor (16) moves back and forth, left and right, and up and down with the sliding carriage; A grinding wheel (18) is fixed on the rotating shaft (1601) of the fourth motor (16), a grinding belt (19) is wound around the grinding wheel (18), the fourth motor (16) drives the grinding wheel (18) and the grinding belt (19) to rotate, and the grinding belt (19) grinds the inner wall of the pipe end.

2. The inner wall grinding device for the pipe end according to claim 1, characterized in that: A fixing plate (22) is provided at the rear side of the grinding wheel (18), a tensioning adjustment device (21) is provided at the upper end of the fixing plate (22), a tensioning wheel (20) is installed at the upper end of the tensioning adjustment device (21), and the grinding belt (19) is wound around the grinding wheel (18) and the tensioning wheel (20).

3. The inner wall grinding device for pipe ends according to claim 1, characterized in that: A driven gear (17) is rotatably installed on the rotating shaft (1601), and the driven gear (17) is fixedly connected to the grinding wheel (18) through a connecting rod; a fifth motor (25) is installed on the fourth bottom plate (12), and the fifth motor (25) drives the driving gear (24) to rotate, and the driving gear (24) meshes with the driven gear (17) for transmission.

4. The inner wall grinding device for pipe ends according to claim 1, characterized in that: Rolling balls (23) are provided at the lower ends on both sides of the grinding wheel (18), and the rolling balls (23) are arranged at the lower end of the mounting seat (26).

5. The inner wall grinding device for pipe ends according to claim 1, characterized in that: The sliding carriage includes a fourth bottom plate (12), and the fourth motor (16) is installed on the fourth bottom plate (12); A top plate (14) and a third bottom plate (9) are respectively provided on the upper side and the lower side of the fourth bottom plate (12), a guide rod (11) is fixed between the top plate (14) and the third bottom plate (9), and the fourth bottom plate (12) slides up and down along the guide rod (11); A third nut (10) is provided on the fourth bottom plate (12), a third screw rod (13) is rotatably provided in the third nut (10), and the third screw rod (13) is driven by a third motor (15).

6. The tube end inner wall grinding device according to claim 5, wherein: A second bottom plate (5) is provided on the lower side of the third bottom plate (9), the third bottom plate (9) is slidably arranged on the second bottom plate (5) through a second slide rail (8), a second nut is fixed on the lower surface of the third bottom plate (9), the second nut is rotatably matched with a second screw rod (7), and the second screw rod (7) is driven by a second motor (6).

7. The tube end inner wall grinding device according to claim 6, characterized in that: A first bottom plate (1) is provided on the lower side of the second bottom plate (5), the second bottom plate (5) is slidably arranged on the first bottom plate (1) through a first slide rail (2), a first nut is fixed on the lower surface of the second bottom plate (5), the first nut is rotatably matched with a first screw rod (3), and the first screw rod (3) is driven by a first motor (4).

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