Tool applied to seamless tube cold-drawing process

Abstract

The utility model discloses a tool applied to a seamless tube cold-drawing process, which belongs to the technical field of seamless tube production devices and is characterized in that one end of a cold-drawing die holder connecting frame is fixedly connected with a fixed seat, the middle position of the fixed seat is provided with a rotating groove, and the inner wall of the rotating groove is rotatably connected with a turntable through a rotating shaft; according to the tool applied to the seamless tube cold-drawing process, through the arrangement of the scrapers, the cutting edges and the steel tube penetrating holes, dirt on the surface of a seamless tube can be conveniently scraped after the seamless tube penetrates through the tool, and the tool is convenient to use and high in practicability. Meanwhile, the scraped dirt cannot be accumulated and extruded into a steel pipe through hole, the cleaning quality of the dirt on the surface of the seamless pipe is greatly improved, rapid adjustment can be conducted according to the actual outer diameter of the seamless pipe through the arranged rotating disc and scrapers with different inner diameters, and therefore the dirt on the surfaces of the seamless pipes with different outer diameters can be cleaned, and the cleaning efficiency is improved. And the application range is greatly expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless pipe production devices, and more specifically, to a tooling applied in the cold drawing process of seamless pipes. Background Art

[0002] Thin-walled seamless steel pipes are made from steel ingots or solid billets by piercing to form a hollow billet, and then are made by hot rolling, cold rolling or cold drawing. During the cold drawing process of seamless pipes, tooling is needed to clean the dirt on the surface of the hollow billet. However, the commonly used tooling is made of soft materials, which reduces the cleaning effect during the cleaning process. Moreover, the size of the tooling is fixed, and it cannot be used for seamless pipes with different outer diameters, thus narrowing the scope of application.

[0003] For example, a tooling applied in the cold drawing process of seamless pipes disclosed in the publication number CN118371547A includes a cold drawing machine table, a die holder and a cold drawing die. The die holder is installed at the trackless table body of the cold drawing machine table, and a cold drawing die is locked to the outer wall of the die holder with bolts. It also includes a pipe cleaning mechanism, and the pipe cleaning mechanism includes an L-shaped upper mounting plate, a guide ring, a rubber scraping ring, an L-shaped bottom mounting plate, a vibration motor, a support plate, a connecting plate, a main diagonal rod, a secondary diagonal rod and a controller.

[0004] It can be seen from the above disclosed solution that the dirt on the surface of the seamless pipe is scraped off by the rubber scraping ring. However, the rubber material is soft and cannot scrape off the stubborn dirt on the surface of the seamless pipe. At the same time, due to the elasticity of the scraping ring, the dirt scraped off from the surface of the seamless pipe will accumulate at one end of the scraping ring and squeeze into the central hole of the scraping ring under the drive of the seamless pipe, thereby causing the inner diameter of the scraping ring to become larger, reducing the cleaning effect of the dirt, and the fixed-size scraping ring can only clean seamless pipes of a certain size, narrowing the scope of application. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a tooling applied in the cold drawing process of seamless pipes. The tooling applied in the cold drawing process of seamless pipes is provided with a scraper, a blade and a steel pipe perforation, which is convenient for scraping the dirt on the surface of the steel pipe after it passes through, and at the same time, the scraped dirt will not accumulate and squeeze into the steel pipe perforation, greatly improving the cleaning quality of the dirt on the surface of the seamless pipe. And by setting a turntable and scrapers with different inner diameters, it can be quickly adjusted according to the actual outer diameter of the seamless pipe, so as to clean the dirt on the surfaces of seamless pipes with different outer diameters, greatly increasing its scope of application.

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

[0007] A tooling used in the cold drawing process of seamless pipes, including a cold drawing die seat connecting frame. One end of the cold drawing die seat connecting frame is fixedly connected with a fixed seat. A rotating groove is provided at the middle position of the fixed seat. The inner wall of the rotating groove is rotationally connected with a turntable through a rotating shaft. The surface of the turntable is provided with countersunk heads distributed at equal intervals in a ring shape, and scrapers with different inner diameters are fixedly installed in each countersunk head. The scraper is circular ring-shaped, and one end is provided with a circular ring-shaped cutting edge. A steel pipe perforation is provided at the middle position of the scraper. An installation plate is fixedly sleeved outside the scraper. The surface of the turntable is provided with positioning holes distributed at equal intervals in a ring shape. A positioning bolt is inserted into the inner wall of the positioning hole. A through hole is slidably connected to the surface of the positioning bolt. For this tooling used in the cold drawing process of seamless pipes, through the provided scraper, cutting edge and steel pipe perforation, it is convenient to scrape the dirt on the surface of the seamless pipe after it passes through, and at the same time, the scraped dirt will not accumulate and be squeezed into the steel pipe perforation, greatly improving the cleaning quality of the dirt on the surface of the seamless pipe. And through the provided turntable and scrapers with different inner diameters, it can be quickly adjusted according to the actual outer diameter of the seamless pipe, so as to clean the dirt on the surfaces of seamless pipes with different outer diameters, greatly increasing its scope of application.

[0008] Further, through holes and fastening holes are provided on the inner wall of the countersunk head. Installation holes are provided on the surface of the installation plate. A fastening screw is inserted into the inner wall of the installation hole. One end of the fastening screw is threadedly fastened to the inner wall of the fastening hole through threads, so that the scraper and the turntable have the function of disassembly and combination, which is convenient for separately replacing the scraper when it is damaged later.

[0009] Further, a shaft hole is provided on the surface of the fixed seat. A central hole is provided at the center position of the turntable. The inner walls of the central hole and the shaft hole are slidably connected to the surface of the rotating shaft. Detachable nuts are provided at both ends of the rotating shaft, so that the turntable has the function of freely rotating.

[0010] Further, the through holes and the steel pipe perforations are concentric and coaxial, and the inner diameters of the through holes are the same. The inner diameter of the through hole is larger than the inner diameter of the steel pipe perforation, and the through hole will not affect the seamless pipes with different inner diameters passing through the corresponding steel pipe perforations.

[0011] Further, the shape of the scraper is trumpet-shaped. The scraper and the cutting edge are both made of high-carbon tool steel, which can scrape the dirt adhered to the surface of the seamless pipe when it passes through.

[0012] Further, a connecting plate is provided at the other end of the cold drawing die seat connecting frame, and the connecting plate is fastened to the surface of the cold drawing die through bolts, which is convenient for cooperating with the cold drawing die.

[0013] Further, one end of the fastening screw is located in the countersunk head, which can prevent the fastening screw from protruding and affecting the rotation of the turntable.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] (1) In this solution, by setting the scraper, the blade and the steel pipe perforation, it is convenient to scrape the dirt on the surface of the seamless pipe after it passes through, and at the same time, the scraped dirt will not accumulate and be squeezed into the steel pipe perforation, greatly improving the cleaning quality of the dirt on the surface of the seamless pipe.

[0016] (2) In this solution, by setting the turntable and scrapers with different inner diameters, it can be quickly adjusted according to the actual outer diameter of the seamless pipe, so as to clean the dirt on the surfaces of seamless pipes with different outer diameters, greatly increasing its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0018] Figure 2 is a three-dimensional view of the turntable structure of the present utility model;

[0019] Figure 3 is a three-dimensional view of the scraper structure of the present utility model;

[0020] Figure 4 is a three-dimensional view of the fixed seat structure of the present utility model;

[0021] Figure 5 is Figure 3 the cross-sectional view of the scraper structure.

[0022] Description of the reference numerals in the drawings:

[0023] 1 cold drawing die seat connecting frame, 11 fixed seat, 12 rotating groove, 13 shaft hole, 14 through hole, 2 turntable, 21 countersunk head groove, 22 through hole, 23 fastening hole, 24 fastening screw, 25 center hole, 26 positioning hole, 3 scraper, 31 mounting plate, 32 mounting hole, 33 blade, 34 steel pipe perforation, 4 rotating shaft, 5 positioning bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the 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 of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1-5, A tooling applied in the cold drawing process of seamless pipes, including a cold drawing die seat connecting frame 1. At the other end of the cold drawing die seat connecting frame 1, there is a connecting plate, and the connecting plate is fastened to the surface of the cold drawing die through bolts, facilitating the cooperation with the cold drawing die. The bottom of the cold drawing die seat is installed on the surface of the cold drawing machine table. On one side of the cold drawing machine table, there are a steel pipe support plate and a vibration motor, used to support and vibrate the seamless pipe before cold drawing through vibration force to remove dirt. Its composition structure and working principle are well-known to those skilled in the art and will not be described in detail here. One end of the cold drawing die seat connecting frame 1 is fixedly connected to a fixed seat 11. In the middle position of the fixed seat 11, there is a rotating groove 12. The inner wall of the rotating groove 12 is rotatably connected to a turntable 2 through a rotating shaft 4. The steel pipe perforation 34 at the zero-degree position on the left side or the 180-degree position on the right side of the turntable 2 is concentric and coaxial with the hole of the cold drawing die, enabling the seamless pipe after removing dirt to enter the cold drawing die for cold drawing. At the same time, after rotating the turntable 2, the scrapers 3 with different inner diameters can be quickly positioned with the cold drawing die. On the surface of the turntable 2, there are countersunk heads 21 distributed at equal intervals in a ring shape. One end of the fastening screw is located in the countersunk head 21, which can prevent the fastening screw from protruding and affecting the rotation of the turntable 2. And in each countersunk head 21, there is a scraper 3 with a different inner diameter fixedly installed. The scraper 3 is circular ring-shaped, and one end is provided with an annular cutting edge 33. In the middle position of the scraper 3, there is a steel pipe perforation 34. The outer side of the scraper 3 is fixedly sleeved with a mounting plate 31. On the surface of the turntable 2, there are positioning holes 26 distributed at equal intervals in a ring shape. The inner wall of the positioning hole 26 is inserted with a positioning bolt 5, and the surface of the positioning bolt 5 is slidably connected to a through hole 14.

[0027] The inner wall of the countersunk head 21 is provided with a through hole 22 and a fastening hole 23. On the surface of the mounting plate 31, there is a mounting hole 32. The inner wall of the mounting hole 32 is inserted with a fastening screw. One end of the fastening screw is thread-fastened to the inner wall of the fastening hole 23 through threads, enabling the scraper 3 and the turntable 2 to have the function of disassembly and combination, facilitating the separate replacement of the scraper 3 in case of damage later. On the surface of the fixed seat 11, there is a shaft hole 13. At the center position of the turntable 2, there is a center hole 25. The inner walls of the center hole 25 and the shaft hole 13 are slidably connected to the surface of the rotating shaft 4. At both ends of the rotating shaft 4, there are detachable nuts, enabling the turntable 2 to have the function of free rotation.

[0028] The through hole 22 is concentric and coaxial with the steel pipe perforation 34, and the inner diameter sizes of each through hole 22 are the same. The inner diameter of the through hole 22 is larger than the inner diameter of the steel pipe perforation 34. The through hole 22 will not affect the seamless pipes with different inner diameters passing through the corresponding steel pipe perforations 34. The shape of the scraper 3 is trumpet-shaped. The scraper 3 and the cutting edge 22 are both made of high-carbon tool steel, which can scrape the dirt adhered to the surface of the seamless pipe when it passes through.

[0029] When the tooling in the seamless pipe cold drawing process is in use, the scraper 3 with a corresponding inner diameter can be adjusted according to the actual seamless pipe to be cold drawn. First, the positioning bolt 5 can be removed with the handle, so that the turntable 2 can rotate freely. Then, the scraper 3 with the corresponding inner diameter is rotated to a position concentric and coaxial with the cold drawing die hole. Next, the positioning bolt 5 is inserted into the positioning hole 26 at this position and tightened clockwise. Then, the seamless pipe before cold drawing is supported and vibrated to remove dirt and then inserted into the steel pipe piercing 34. At the same time, during the movement of the seamless pipe, the scraper 3 scrapes the dirt on its surface. After scraping, the seamless pipe enters the cold drawing die for cold drawing.

[0030] The above is only a preferred specific embodiment of the present invention; however, 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 and its improved concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A tooling applied in the cold drawing process of seamless pipes, including a cold drawing die base connecting frame (1), characterized in that: One end of the cold drawing die holder connecting frame (1) is fixedly connected with a fixed seat (11). A rotating groove (12) is arranged at the middle position of the fixed seat (11). The inner wall of the rotating groove (12) is rotationally connected with a turntable (2) through a rotating shaft (4). The surface of the turntable (2) is provided with countersunk head grooves (21) distributed at equal intervals in a ring shape, and scraping knives (3) with different inner diameters are fixedly installed in each of the countersunk head grooves (21). The scraping knife (3) is circular ring-shaped, and one end is provided with an annular cutting edge (33). A steel pipe through hole (34) is arranged at the middle position of the scraping knife (3). An installation plate (31) is fixedly sleeved on the outer side of the scraping knife (3). The surface of the turntable (2) is provided with positioning holes (26) distributed at equal intervals in a ring shape. A positioning bolt (5) is inserted into the inner wall of the positioning hole (26), and the surface of the positioning bolt (5) is slidably connected with a through hole (14).

2. The tooling applied in the cold drawing process of seamless pipes according to claim 1, characterized in that: A through hole (22) and a fastening hole (23) are arranged on the inner wall of the countersunk head groove (21). An installation hole (32) is arranged on the surface of the installation plate (31). A fastening screw rod is inserted into the inner wall of the installation hole (32), and one end of the fastening screw rod is threadedly fastened with the inner wall of the fastening hole (23) through threads.

3. The tooling applied in the seamless tube cold drawing process according to claim 1, characterized in that: A shaft hole (13) is arranged on the surface of the fixed seat (11). A central hole (25) is arranged at the central position of the turntable (2). The inner walls of the central hole (25) and the shaft hole (13) are slidably connected with the surface of the rotating shaft (4). Detachable nuts are arranged at both ends of the rotating shaft (4).

4. The tooling applied in the cold drawing process of seamless pipes according to claim 2, characterized in that: The through holes (22) and the steel pipe through holes (34) are concentric and coaxial, and the inner diameters of the through holes (22) are the same. The inner diameter of the through hole (22) is larger than the inner diameter of the steel pipe through hole (34).

5. The tooling applied to the seamless pipe cold drawing process according to claim 1, characterized in that: The shape of the scraping knife (3) is trumpet-shaped. The scraping knife (3) and the cutting edge (33) are both made of high-carbon tool steel.

6. The tooling applied in the seamless tube cold drawing process according to claim 1, wherein: The other end of the cold drawing die holder connecting frame (1) is provided with a connecting plate, and the connecting plate is fastened to the surface of the cold drawing die through bolts.

7. The tooling applied in the seamless tube cold drawing process according to claim 2, characterized in that: One end of the fastening screw rod is located in the countersunk head groove (21).

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