Precision welding cold-drawn steel pipe inner wall polishing table

Abstract

The utility model relates to the technical field of cold-drawn steel pipes, in particular to a precision welding cold-drawn steel pipe inner wall polishing table which comprises a bearing plate, a rotary pushing mechanism used for polishing the inner wall of a cold-drawn steel pipe, a supporting mechanism used for bearing the cold-drawn steel pipe and a dust collection mechanism used for collecting dust when the interior of the cold-drawn steel pipe is polished. The dust suction mechanism comprises a dust suction box, a hollow-square-shaped cavity and an open type adsorption cavity are formed in the dust suction box, a through hole is formed between the adsorption cavity and the hollow-square-shaped cavity, and an air pump for pumping air in the hollow-square-shaped cavity is arranged on the dust suction box. The dust collection mechanism can collect dust generated when the interior of the cold-drawn steel pipe is polished, and flying dust is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-drawn steel pipes, in particular to an inner wall polishing table for precision welded cold-drawn steel pipes. Background Art

[0002] Cold-drawn steel pipes, also known as cold-rolled precision steel pipes, are a production process of seamless steel pipes. Cold-drawn steel pipes are one of the high-grade varieties in seamless steel pipe products. Cold-drawn steel pipes have the characteristics of high tolerance dimension accuracy, good finish on both inner and outer walls, no oxide layer on the surface, and excellent comprehensive performance. However, when used in the process of transporting liquids, they are prone to scaling and difficult to clean later. Therefore, the inner wall needs to be polished during the processing. Common inner wall polishing machines are difficult to adapt to cold-drawn steel pipes of different sizes, and dust is easily generated during the polishing process. Content of the Utility Model

[0003] The utility model aims to solve the above defects and provides an inner wall polishing table for precision welded cold-drawn steel pipes.

[0004] In order to overcome the defects in the background art, the technical solution adopted by the utility model to solve its technical problems is: an inner wall polishing table for precision welded cold-drawn steel pipes, which includes a bearing plate, a rotary pushing mechanism for polishing the inner wall of the cold-drawn steel pipe, a supporting mechanism for supporting the cold-drawn steel pipe, and a dust suction mechanism for sucking dust during the inner wall polishing of the cold-drawn steel pipe;

[0005] The dust suction mechanism includes a dust suction box, in which a return cavity and an open adsorption cavity are provided. A through hole is provided between the adsorption cavity and the return cavity, and an air pump for pumping air into the return cavity is provided on the dust suction box.

[0006] Further improvement includes that a flexible sealing part for fitting the cold-drawn steel pipe is provided in the adsorption cavity.

[0007] Further improvement includes that a filter layer for collecting dust is provided in the return cavity.

[0008] Further improvement includes that a metal mesh for limiting the cold-drawn steel pipe is provided in the adsorption cavity.

[0009] Further improvement includes that a pressing mechanism for rolling and pressing the cold-drawn steel pipe is provided on the bearing plate.

[0010] Further improvement includes that the pressing mechanism includes a bracket and a pneumatic rod installed on the bracket, and the output end of the pneumatic rod is connected to a pressure wheel group.

[0011] Further improvements include that the support mechanism comprises a box body with an open structure at the upper end, two idler rollers and a driving motor. The idler rollers are horizontally arranged side by side and rotatably disposed in the box body through rotating shafts, and the output end of the driving motor is connected to a driving gear, and the driving gear is meshed with a driven gear arranged on the rotating shaft to drive the idler rollers to rotate.

[0012] Further improvements include that the rotary pushing mechanism comprises a bearing seat, a cylinder, a polishing part and a rotating unit. The rotating unit is connected to the long shaft, the long shaft is connected to the polishing part, the cylinder is disposed on the bearing seat, and the output end of the cylinder is connected to the rotating unit to drive the polishing part to axially move in the cold-drawn steel pipe.

[0013] Further improvements include that an adsorption mechanism is arranged on the rotating unit.

[0014] Further improvements include that the adsorption mechanism comprises a pipe body. An axial through hole for penetrating the long shaft and a hollow cavity are axially formed in the pipe body. The through hole is arranged through and located at the center of the hollow cavity. Air holes and connection ports for communicating the hollow cavity with the outside are formed on the pipe body.

[0015] Further improvements include that the rotating unit comprises two support plates, a connecting rod for connecting the support plates in series and a rotating motor. The rotating motor is disposed on one of the support plates, the output end of the rotating motor is connected to the long shaft, and the long shaft passes through the other support plate and is connected to the polishing part.

[0016] Further improvements include that multiple support mechanisms can be arranged, and the support mechanisms are slidably disposed on the bearing plate through a sliding mechanism.

[0017] The beneficial effects of the present utility model are as follows: In this design, the dust collection mechanism can collect the dust generated during the polishing of the cold-drawn steel pipe to avoid dust flying; and the flexible sealing part can be used to adapt to cold-drawn steel pipes with different diameters, improving the dust collection effect of the dust collection mechanism; the adsorption mechanism extends into the cold-drawn steel pipe to adsorb the dust accumulated in the cold-drawn steel pipe after polishing or blow it into the dust collection mechanism to achieve collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 is the front view of the present utility model;

[0020] Figure 2 is the front view of the rotary pushing mechanism in the present utility model;

[0021] Figure 3It is the front view of the pressing mechanism in the present utility model;

[0022] Figure 4 It is the front view of the supporting mechanism in the present utility model;

[0023] Figure 5 It is the top view of the supporting mechanism in the present utility model;

[0024] Figure 6 It is the front sectional view of the dust suction mechanism in the present utility model;

[0025] Figure 7 It is the front sectional view of the adsorption mechanism in the present utility model;

[0026] In the figure, 1 - rotary pushing mechanism, 2 - cold-drawn steel pipe, 3 - sliding mechanism, 4 - pressing mechanism, 5 - supporting mechanism, 6 - dust suction mechanism, 7 - bearing plate, 8 - adsorption mechanism, 101 - cylinder, 102 - bearing seat, 103 - support plate, 104 - coupling, 105 - long shaft, 106 - connecting rod, 107 - rotary motor, 108 - polishing part, 401 - bracket, 402 - pneumatic rod, 403 - pressure wheel group, 501 - box body, 502 - idler roller, 503 - driven gear, 504 - rotating shaft, 505 - driving gear, 506 - driving motor, 601 - flexible sealing part, 602 - loop cavity, 603 - filter layer, 604 - metal mesh, 605 - adsorption cavity, 606 - through hole, 607 - air pump, 608 - dust suction box, 801 - pipe body, 802 - hollow cavity, 803 - connection port, 804 - through hole, 805 - air hole. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0028] According to Figure 1 As shown, a precision welding cold-drawn steel pipe inner wall polishing table includes a bearing plate 7, a rotary pushing mechanism 1 for polishing the inner wall of the cold-drawn steel pipe 2, a supporting mechanism 5 for supporting the cold-drawn steel pipe 2, and a dust suction mechanism 6 for sucking dust during the polishing of the inner wall of the cold-drawn steel pipe 2;

[0029] According to Figure 6As shown, the dust suction mechanism 6 includes a dust suction box 608. A loop-shaped cavity 602 and an open adsorption cavity 605 are formed inside the dust suction box 608. A through hole 606 for conducting is formed between the adsorption cavity 605 and the loop-shaped cavity 602. An air pump 607 for pumping air into the loop-shaped cavity 602 is provided on the dust suction box 608. By placing one end of the cold-drawn steel pipe 2 in the adsorption cavity 605 and starting the air pump 607, a negative pressure is formed in the loop-shaped cavity 602 and the adsorption cavity 605 to collect the dust generated on the inner wall of the cold-drawn steel pipe 2 during polishing.

[0030] To improve the dust suction effect of the air pump 607 during the polishing of the cold-drawn steel pipe 2, a flexible sealing part 601 for fitting the cold-drawn steel pipe 2 is provided in the adsorption cavity 605. By fitting and wrapping the cold-drawn steel pipe 2 with the flexible sealing part 601, the dust suction effect on the dust inside the cold-drawn steel pipe 2 can be improved, and it can be applied to cold-drawn steel pipes 2 with different diameters. The flexible sealing part 601 is preferably an airbag or a rubber soft board.

[0031] A filter layer 603 for collecting dust is provided in the loop-shaped cavity 602. The filter layer 603 can collect the dust generated during polishing and avoid environmental pollution.

[0032] A metal mesh 604 for limiting the cold-drawn steel pipe 2 is provided in the adsorption cavity 605. The metal mesh 604 limits the cold-drawn steel pipe 2 while ensuring the adsorption effect of the dust suction mechanism 6.

[0033] According to Figure 3 As shown, a pressing mechanism 4 for rolling and pressing the cold-drawn steel pipe 2 is provided on the bearing plate 7. The pressing mechanism 4 includes a bracket 401 and a pneumatic rod 402 installed on the bracket 401. The output end of the pneumatic rod 402 is connected to a pressure wheel set 403 to roll and press the surface of the cold-drawn steel pipe 2. When polishing the inner wall of the cold-drawn steel pipe 2, the pressing mechanism 4 can press the cold-drawn steel pipe 2 to prevent the cold-drawn steel pipe 2 from moving during polishing, affecting the polishing effect, and ensuring the safety during production.

[0034] According to Figure 4 And Figure 5 As shown, the support mechanism 5 includes a box body 501 with an open upper end, two idler rollers 502, and a driving motor 506. The idler rollers 502 are horizontally arranged side by side in the box body 501 through a rotating shaft 504, and the output end of the driving motor 506 is connected to a driving gear 505. The driving gear 505 is meshed with a driven gear 503 arranged on the rotating shaft 504 to drive the idler rollers 502 to rotate. By placing the cold-drawn steel pipe 2 between the two idler rollers 502, the idler rollers 502 drive the cold-drawn steel pipe 2 to rotate through this design, facilitating polishing.

[0035] According toFigure 2 As shown, the rotary pushing mechanism 1 includes a bearing seat 102, a cylinder 101, a polishing part 108 and a rotary unit. The rotary unit is connected to the long shaft 105 to drive the long shaft 105 to rotate. The long shaft 105 is connected to the polishing part 108. The cylinder 101 is arranged on the bearing seat 102, and the output end of the cylinder 101 is connected to the rotary unit to drive the polishing part 108 to axially move in the cold-drawn steel pipe 2. Through this design, the polishing part 108 is driven to rotate and axially move in the cold-drawn steel pipe 2 for polishing.

[0036] The rotary unit includes two support plates 103, a connecting rod 106 for connecting the support plates 103 in series, and a rotary motor 107. The rotary motor 107 is arranged on one of the support plates 103. The output end of the rotary motor 107 is connected to the long shaft 105, and the long shaft 105 passes through the other support plate 103 and is connected to the polishing part 108, so as to drive the polishing part 108 to rotate through the rotary motor 107. In a further embodiment, the output end of the rotary motor 107 is connected to the long shaft 105 through a coupling 104.

[0037] An adsorption mechanism 8 is arranged on the rotary unit. The adsorption mechanism 8 also extends into the cold-drawn steel pipe 2. According to Figure 7 As shown, the adsorption mechanism 8 includes a pipe body 801. An axial through hole 804 for passing through the long shaft 105 and a hollow cavity 802 are axially opened in the pipe body 801. The through hole 804 is arranged through and is located at the center of the hollow cavity 802. An air hole 805 and a connection port 803 for the hollow cavity 802 to communicate with the outside are opened on the pipe body 801. The connection port 803 is connected to a dust collection device through a pipeline to adsorb the dust in the cold-drawn steel pipe 2 while polishing. Specifically, after a negative pressure is formed in the hollow cavity 802 by the dust collection device, the dust in the cold-drawn steel pipe 2 is adsorbed through the air hole 805, or the connection port 803 is connected to an air pump through a pipeline, so as to blow the dust accumulated in the cold-drawn steel pipe 2 to the dust collection mechanism 6 to facilitate the dust collection mechanism 6 to collect dust, without the need for later cleaning.

[0038] According to Figure 1 As shown, a plurality of support mechanisms 5 can be arranged, and the support mechanisms 5 are slidably arranged on the bearing plate 7 through a sliding mechanism 3, so as to adapt to the support of cold-drawn steel pipes 2 of different lengths.

[0039] Working principle: Place the cold-drawn steel pipe 2 on the support mechanism 5. The rotary pushing mechanism 1 polishes the inner wall of the cold-drawn steel pipe 2 inside it. At the same time, one end of the cold-drawn steel pipe 2 extends into the adsorption cavity 605. Start the air pump 607 to create negative pressure in the adsorption cavity 605 and the return cavity 602 to suck the dust inside the cold-drawn steel pipe 2, avoiding dust flying. At the same time, the flexible sealing part 601 fits circumferentially inside the cold-drawn steel pipe 2, so it is applicable to cold-drawn steel pipes 2 with various different diameters and can improve the dust suction effect.

[0040] 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 precision welded cold drawn steel pipe inner wall polishing table, characterized in that: It comprises a bearing plate (7), a rotating pushing mechanism (1) for polishing the inner wall of a cold-drawn steel tube (2), a supporting mechanism (5) for bearing the cold-drawn steel tube (2), and a dust collecting mechanism (6) for collecting dust when the inner wall of the cold-drawn steel tube (2) is being polished; The dust collection mechanism (6) comprises a dust collection box (608), wherein a circular cavity (602) and an open adsorption cavity (605) are provided in the dust collection box (608), a through hole (606) is provided between the adsorption cavity (605) and the circular cavity (602), and an air pump (607) for extracting air from the circular cavity (602) is provided on the dust collection box (608).

2. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 1, characterized in that: A flexible sealing portion (601) for fitting the cold-drawn steel pipe (2) is provided in the adsorption cavity (605).

3. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 1, characterized in that: A filter layer (603) for collecting dust is provided in the serpentine cavity (602).

4. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 1, characterized in that: A metal mesh (604) for limiting the position of the cold-drawn steel tube (2) is provided in the adsorption cavity (605).

5. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 1, characterized in that: The bearing plate (7) is provided with a pressing mechanism (4) for rolling and pressing the cold-drawn steel tube (2), the pressing mechanism (4) comprising a bracket (401) and a pneumatic rod (402) mounted on the bracket (401), the output end of the pneumatic rod (402) being connected to a pressing wheel assembly (403).

6. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 1, characterized in that: The support mechanism (5) comprises a box body (501) with an open structure at the upper end, two rollers (502) and a drive motor (506); the rollers (502) are arranged horizontally side by side in a rolling manner in the box body (501) via a rotating shaft (504); the output end of the drive motor (506) is connected to a driving gear (505); the driving gear (505) is meshed with a driven gear (503) arranged on the rotating shaft (504) to drive the rollers (502) to rotate.

7. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 1, characterized in that: The rotary pushing mechanism (1) comprises a bearing seat (102), a cylinder (101), a polishing portion (108) and a rotating unit, wherein the rotating unit is connected to a long shaft (105), the long shaft (105) is connected to the polishing portion (108), the cylinder (101) is arranged on the bearing seat (102), and the output end of the cylinder (101) is connected to the rotating unit, thereby driving the polishing portion (108) to move axially in the cold-drawn steel tube (2).

8. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 7, characterized in that: The rotation unit is provided with an adsorption mechanism (8), and the adsorption mechanism (8) comprises a tube body (801), the tube body (801) having an axially provided through hole (804) for inserting the long axis (105) and a hollow cavity (802), the through hole (804) being provided through and located at the center of the hollow cavity (802), and the tube body (801) having an air hole (805) and a connection port (803) for connecting the hollow cavity (802) with the outside.

9. A precision welded cold-drawn steel pipe inner wall polishing table as claimed in claim 8, characterized in that: The rotating unit comprises two support plates (103), a connecting rod (106) connecting the support plates (103) in series, and a rotating motor (107); the rotating motor (107) is arranged on one of the support plates (103); an output end of the rotating motor (107) is connected to a long shaft (105), and the long shaft (105) passes through another support plate (103) and is connected to a polishing portion (108).

10. A precision welded cold-drawn steel pipe inner wall polishing table according to any one of claims 1 to 9, characterized in that: A plurality of the support mechanisms (5) may be provided, and the support mechanisms (5) are slidably arranged on the bearing plate (7) via a sliding mechanism (3).

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