Tool for punching and rolling steel pipe

Abstract

The utility model discloses a steel pipe perforating and rolling tool which comprises a perforating and rolling tool body, the perforating and rolling tool body comprises a connector, one end of the connector is fixedly connected with a connecting pipe, an opening is formed in the middle of one end of the connecting pipe, a threaded pipe is arranged in the middle of the opening, and an ejector rod is arranged in the middle of the threaded pipe in a threaded mode. A butt joint structure is further included, the butt joint structure comprises a butt joint pipe, a threaded ring is arranged on the outer surface of the butt joint pipe in a threaded mode and extends into the connector, rectangular protrusions are arranged on the outer surface of the threaded ring at equal intervals, and a butt joint column is arranged in the middle of the butt joint pipe. According to the utility model, while being easy to disassemble and assemble, a damaged structure can be independently overhauled and maintained, so that the cost is reduced, the axial force of the ejector rod is increased, so that the use requirement is better met, the bending damage probability of the ejector rod is reduced, and the cost is further saved; and subsequent thread slipping or breakage can be avoided, so that disassembly and replacement of the ejector rod are not affected, and the use effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe rolling technology, specifically to a tool for piercing and rolling steel pipes. Background Technology

[0002] Steel pipe rolling is a metal pressure processing technology. It involves rolling a solid billet or hollow rough tube through a series of rolling mills to gradually form a steel pipe with specific dimensions, shape, and properties. The minimum diameter of the mandrel used in the workshop for the hot tool piercing mill is Φ76. Because the diameter of the mandrel is smaller than the previous size, the wall thickness of the steel pipe is thicker, the axial pressure of the mandrel is too high, and the mandrel is prone to bending during use, which does not meet production needs. Therefore, it is necessary to provide a steel pipe piercing rolling tool that can solve the above-mentioned drawbacks to improve the efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a tool for piercing and rolling steel pipes, so as to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0004] This utility model relates to a tool for piercing and rolling steel pipes, comprising:

[0005] A piercing rolling tool, comprising a connector, one end of which is fixedly connected to a connecting pipe, and one end of the connecting pipe has an opening in the middle, a threaded pipe is arranged in the middle of the opening, and a push rod is provided in the middle of the threaded pipe.

[0006] Furthermore, the inner wall of the opening is provided with positioning grooves at equal intervals, and the outer surface of the threaded tube is provided with positioning blocks at equal intervals, extending into the positioning grooves.

[0007] Furthermore, one end of the positioning block is fixedly connected to a positioning hole block, which fits against the outer edge of the opening, and a positioning post is provided through the middle of the positioning hole block and extends into the connecting pipe.

[0008] Furthermore, it also includes a convenient disassembly and assembly structure, which includes a slot, the slot being equidistantly opened in the middle of the outer surface of the top rod, and a disassembly and assembly protrusion being engaged in the middle of the slot.

[0009] Furthermore, it also includes a docking structure, which includes a connecting pipe. The outer surface of the connecting pipe is threaded with a threaded ring that extends into the connector. The outer surface of the threaded ring is provided with rectangular protrusions at equal intervals. A docking post is provided in the middle of the connecting pipe, and one end of the docking post is fixed to the movable end of the drilling machine.

[0010] Furthermore, the outer surface of the connecting tube is provided with a through-connecting post in the middle and a pin extending therefrom, and the end of the spool is provided with a damping limiting post.

[0011] This utility model has the following beneficial effects:

[0012] This utility model modularizes the tool for piercing and rolling steel pipes, and uses a threaded connection between the smaller-sized push rod and the connecting pipe. This facilitates easy disassembly and assembly, and allows for independent inspection and maintenance of damaged structures, thereby reducing costs. Furthermore, by increasing the axial force of the push rod, it better meets the usage requirements and reduces the probability of push rod bending damage, further saving costs. At the same time, the threaded connection adopts a detachable threaded pipe structure, which can avoid subsequent stripping or breakage, thus affecting the disassembly and replacement of the push rod and improving the usage effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a view of the appearance of the present utility model;

[0015] Figure 2 This is a schematic diagram of the top rod installation of this utility model;

[0016] Figure 3 This is a schematic diagram of the installation of the docking structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the docking structure of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 11. Connector; 12. Connecting pipe; 13. Opening; 14. Threaded pipe; 15. Positioning groove; 16. Positioning block; 17. Positioning hole block; 18. Positioning pin; 19. Push rod; 21. Slot; 22. Disassembly and assembly protrusion; 31. Connecting pipe; 32. Connecting pin; 33. Pin; 34. Limiting pin; 35. Threaded ring; 36. Rectangular protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] Please see Figure 1-4 As shown, this utility model is a tool for piercing and rolling steel pipes, comprising:

[0023] A piercing rolling tool includes a connector 11, one end of which is fixedly connected to a connecting pipe 12, and one end of the connecting pipe 12 has an opening 13 in the middle, and a threaded pipe 14 is arranged in the middle of the opening 13, and a push rod 19 is threaded in the middle of the threaded pipe 14.

[0024] The connector 11 is installed and fixed to the connecting pipe 12. The opening 13 of the connecting pipe 12 is opened to receive the threaded pipe 14, and then the push rod 19 is threaded and fixed to increase the axial force of the push rod 19, better meet the use requirements, and reduce the probability of bending damage. The modular disassembly and assembly settings allow for independent disassembly, inspection and maintenance of the structure to reduce costs. The push rod 19 completes the steel pipe rolling piercing guidance.

[0025] The inner wall of the opening 13 is provided with positioning grooves 15 at equal intervals, and the outer surface of the threaded tube 14 is provided with positioning blocks 16 at equal intervals, extending into the positioning grooves 15.

[0026] One end of the positioning block 16 is fixedly connected to the positioning hole block 17 and fits against the outer edge of the opening 13. The positioning hole block 17 is provided with a positioning post 18 through the middle and extends into the connecting pipe 12.

[0027] The positioning pin 18 is installed and fixed to the positioning hole block 17. The positioning block 16 is then fixed by the fixed positioning hole block 17. The positioning groove 15 satisfies the initial fixation of the positioning block 16, and then the threaded tube 14 is installed and fixed. This method facilitates the disassembly of the threaded tube 14, so as to avoid the inconvenience caused by stripping or breaking during use.

[0028] It also includes a docking structure, which includes a connecting pipe 31. The outer surface of the connecting pipe 31 is threaded with a threaded ring 35 that extends into the connector 11. The outer surface of the threaded ring 35 is provided with rectangular protrusions 36 at equal intervals. A docking post 32 is provided in the middle of the connecting pipe 31, and one end of the docking post 32 is fixed to the movable end of the drilling machine.

[0029] The threaded ring 35 is installed and fixed to the connecting pipe 31. The rectangular protrusion 36 facilitates the gripping of the threaded ring 35. The connecting pipe 31 is fixed to the connecting post 32, thereby satisfying the connection between the push rod 19 and the moving end of the piercing machine to transmit the applied force.

[0030] The outer surface of the connector 31 is provided with a through-connecting post 32 and an extending pin 33, and the end of the spool is provided with a damping limiting post 34.

[0031] The pin 33, in conjunction with the limiting pin 34, fixes the docking pin 32 in the docking pipe 31.

[0032] Working principle: The top rod 19 is pre-installed. One end of the top rod 19 is extended into the threaded pipe 14 and tightened by rotation. One end of the top rod 19 is installed and fixed to the connecting pipe 12. Then, the docking post 32 connected to the movable end of the piercing machine is extended into the docking pipe 31. At this time, the pin 33 is passed out of the docking pipe 31 and passed out of the limiting post 34 through the end damping of the pin 33. The docking post 32 and the docking pipe 31 are installed and fixed. Then, the controlled external piercing machine transmits force to the top rod 19 to act on the steel pipe to complete the piercing.

[0033] This solution is easy to disassemble and assemble, and allows for independent inspection and maintenance of damaged structures to reduce costs. By increasing the axial force of the push rod 19, it better meets the usage requirements and reduces the probability of bending damage to the push rod 19, further saving costs. At the same time, the threaded connection adopts a detachable threaded tube 14 structure, which can avoid subsequent stripping or breakage, thereby affecting the disassembly and replacement of the push rod 19 and improving the usage effect.

[0034] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0035] The easy disassembly and assembly structure includes a slot 21, which is equidistantly opened in the middle of the outer surface of the top rod 19, and a disassembly and assembly protrusion 22 is snapped into the middle of the slot 21.

[0036] The slot 21 accommodates the installation of multiple disassembly and assembly protrusions 22. By using the disassembly and assembly protrusions 22 to increase frictional resistance, the disassembly and assembly of the push rod 19 can be completed conveniently and quickly.

[0037] Working principle: In the above-mentioned disassembly and assembly of the push rod 19, the disassembly and assembly protrusions 22 are sequentially installed in the multiple slots 21. The push rod 19 is then held by increasing the contact damping through the multiple disassembly and assembly protrusions 22, and the required force for disassembly and assembly is then applied.

[0038] This solution allows for easy assembly and disassembly of the top rod 19, saving time and effort and facilitating subsequent use.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tool for piercing and rolling steel pipes, characterized in that, Include: Piercing rolling tool, the piercing rolling tool includes connecting head (11), one end of connecting head (11) is fixedly connected with connecting pipe (12), and the middle part of one end of connecting pipe (12) is provided with opening (13), the middle part of opening (13) is provided with threaded pipe (14), and the middle part of threaded pipe (14) is provided with top rod (19) in screw thread.

2. A tool for piercing a steel tube according to claim 1, characterized in that: The inner wall of the opening (13) is equally provided with a positioning groove (15), and the outer surface of the threaded pipe (14) is equally provided with a positioning block (16) and extends into the positioning groove (15).

3. A tool for piercing a steel tube according to claim 2, characterized in that: One end of the positioning block (16) is fixedly connected with a positioning hole block (17) and is attached to the outer side edge of the opening (13), and the middle part of the positioning hole block (17) is provided with a positioning column (18) and extends into the connecting pipe (12).

4. A tool for piercing a steel tube according to claim 1, characterized in that: It also includes a convenient disassembly structure, the convenient disassembly structure includes a clamping groove (21), the clamping groove (21) is equally provided in the middle part of the outer surface of the top rod (19), and the middle part of the clamping groove (21) is connected with the disassembly protruding block (22) by clamping.

5. A tool for piercing a steel tube according to claim 1, characterized in that: It also includes a docking structure, the docking structure includes a docking pipe (31), the outer surface of the docking pipe (31) is provided with a threaded ring (35) in screw thread and extends into the connecting head (11), and the outer surface of the threaded ring (35) is equally provided with a square-shaped protrusion (36), the middle part of the docking pipe (31) is provided with a docking column (32), and one end of the docking column (32) is fixed with the movable end of the piercing machine.

6. A tool for piercing a steel tube according to claim 5, characterized in that: The middle part of the outer surface of the docking pipe (31) is provided with a pin shaft (33) extending out of the through docking column (32), and the end of the spool damping is provided with a limiting column (34).

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