Efficient plug structure for flow guide optimization tube blank perforation

Abstract

The utility model relates to the technical field of metal pressure processing, in particular to a flow guide optimized tube blank punching efficient top head structure which comprises a top head, and the inner wall of the top head is fixedly connected with a plurality of round fixing plates which are arranged in parallel. A good heat dissipation system can be formed by the connecting pipes on the surfaces of the round pipes, the spiral heat dissipation pipes and the partition plates in the spiral heat dissipation pipes. The heat dissipation area is increased through the spiral heat dissipation pipe, heat generated by the plug in the working process can be rapidly dissipated out, and the plug is kept within the proper working temperature range. Meanwhile, although the tungsten carbide coating on the surface of the plug is only 5 microns, tungsten carbide has the characteristics of high hardness and strong wear resistance, so that the wear resistance and corrosion resistance of the surface of the plug can be greatly enhanced, the service life of the plug is prolonged, and the problems of cost increase and production interruption caused by frequent replacement due to wear and corrosion of the plug are reduced; and continuity and stability of production are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of metal pressure processing technology, specifically a high-efficiency mandrel structure for optimizing flow guidance and perforating tubes. Background Technology

[0002] In the field of pipe processing, billet piercing is a crucial process, and its processing efficiency and quality directly affect the performance of subsequent pipes and production benefits. Traditional billet piercing mandrel structures have several drawbacks. On the one hand, inadequate flow guidance design prevents the uniform and efficient delivery of media such as coolant or lubricant to the piercing area. This forces the mandrel to operate in a high-temperature, high-friction environment, leading to accelerated wear, shortened lifespan, and affecting piercing accuracy and surface quality. On the other hand, insufficient heat dissipation causes a large amount of heat to accumulate at the mandrel, resulting in a decline in the mandrel material's performance and even deformation, severely impacting the continuity and stability of production. Furthermore, the mandrel surface has poor wear resistance, and frequent mandrel replacements not only increase production costs but also reduce production efficiency. Therefore, we have developed a flow-optimized, high-efficiency billet piercing mandrel structure to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency mandrel structure for flow-guiding and optimized perforation of tubes and canopies, in order to solve the problems mentioned in the background art.

[0004] The technical solution of this utility model is: a high-efficiency mandrel structure for flow-guiding and optimization pipe perforation, including a mandrel, wherein a plurality of parallel circular fixing plates are fixedly connected to the inner wall of the mandrel, a plurality of annularly arranged fan-shaped grooves are opened at one end of the plurality of circular fixing plates, a circular hole is opened at one end of the plurality of circular fixing plates, and the same circular pipe is fixedly connected to the inner wall of the plurality of circular holes.

[0005] Preferably, the surface of the circular tube has multiple sets of parallel guide holes, the inner wall of the circular tube is fixedly connected to a partition plate, and the other end of the circular tube is fixedly connected to a connecting rod.

[0006] Preferably, two symmetrically arranged connecting pipes are fixedly connected to the surface of the circular tube, with one end of each connecting pipe penetrating the surface of the circular tube and extending to the outside.

[0007] Preferably, a spiral heat dissipation pipe is fixedly connected to the other end of the connecting pipe on the left side, and the other end of the spiral heat dissipation pipe is connected to one end of the connecting pipe on the right side.

[0008] Preferably, the surface of the top head is provided with a tungsten carbide coating, the thickness of which is 5 micrometers.

[0009] This utility model provides an improved and optimized perforated mandrel structure for flow guidance, which has the following improvements and advantages compared with the prior art:

[0010] Firstly, this invention utilizes multiple circular fixing plates with fan-shaped grooves and circular holes on the inner wall of the mandrel. These, along with the internal circular tube and its surface guide holes, enable efficient flow of the medium (such as coolant or lubricant) during the piercing process. This structural design allows the medium to be evenly and quickly distributed to the piercing working area. On one hand, it effectively removes the heat generated during piercing, preventing the mandrel from overheating and reducing its performance or even becoming damaged. On the other hand, the even distribution of the medium also provides good lubrication, reducing the frictional resistance between the mandrel and the tube blank, thereby significantly improving the efficiency and quality of tube blank piercing.

[0011] Secondly, this invention utilizes a connecting pipe on the surface of the circular tube, a spiral heat dissipation pipe, and an internal partition plate to form an excellent heat dissipation system. The spiral heat dissipation pipe increases the heat dissipation area, quickly dissipating the heat generated by the mandrel during operation and maintaining it within a suitable operating temperature range. Simultaneously, although the tungsten carbide coating on the mandrel surface is only 5 micrometers thick, tungsten carbide possesses high hardness and strong wear resistance, significantly enhancing the wear resistance and corrosion resistance of the mandrel surface, extending its service life, reducing the increased costs and production interruptions caused by frequent replacements due to mandrel wear and corrosion, and ensuring the continuity and stability of production. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0016] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Top; 2. Circular fixing plate; 3. Sector groove; 4. Circular hole; 5. Circular tube; 6. Guide hole; 7. Divider plate; 8. Connecting rod; 9. Connecting pipe; 10. Spiral heat dissipation pipe. Detailed Implementation

[0019] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0020] This utility model provides an improved, optimized, and highly efficient mandrel structure for perforated pipes. The technical solution of this utility model is as follows:

[0021] like Figure 1 - Figure 4 As shown, a high-efficiency mandrel structure for flow-guiding and optimization pipe perforation includes a mandrel 1. Multiple parallel circular fixing plates 2 are fixedly connected to the inner wall of the mandrel 1. Multiple annular fan-shaped grooves 3 are opened at one end of each of the multiple circular fixing plates 2. Circular holes 4 are opened at one end of each of the multiple circular fixing plates 2. The same circular pipe 5 is fixedly connected to the inner wall of the multiple circular holes 4.

[0022] Furthermore, the surface of the circular tube 5 is provided with multiple sets of parallel guide holes 6, the inner wall of the circular tube 5 is fixedly connected with a partition plate 7, and the other end of the circular tube 5 is fixedly connected with a connecting rod 8. The guide holes 6 can precisely control the direction and flow rate of the medium, so that the medium can evenly cover the perforated area and improve the lubrication and cooling effect.

[0023] Furthermore, two symmetrically arranged connecting pipes 9 are fixedly connected to the surface of the circular tube 5. One end of each connecting pipe 9 penetrates the surface of the circular tube 5 and extends to the outside. The symmetrically distributed connecting pipes 9 can ensure a balanced heat transfer path and improve the stability and reliability of the heat dissipation system.

[0024] Furthermore, a spiral heat dissipation pipe 10 is fixedly connected to the other end of the left connecting pipe 9. The other end of the spiral heat dissipation pipe 10 is connected to one end of the right connecting pipe 9. The spiral heat dissipation pipe 10 is fixedly connected to the other end of the left connecting pipe 9. The spiral heat dissipation pipe 10 greatly increases the heat dissipation area through its spiral structure, effectively improving the heat dissipation efficiency and reducing the top temperature.

[0025] Furthermore, the surface of the mandrel 1 is provided with a tungsten carbide coating with a thickness of 5 micrometers. The tungsten carbide coating with a thickness of 5 micrometers is provided on the surface of the mandrel 1. This coating has extremely high hardness, which can significantly enhance the wear resistance of the mandrel 1, extend its service life and maintain good perforation performance.

[0026] Working Principle: During the tube blank piercing process, the mandrel 1 contacts the tube blank and performs the piercing operation. Multiple parallel circular fixing plates 2 are fixed to the inner wall of the mandrel 1. A fan-shaped groove 3 and a circular hole 4 at one end of the mandrel, together with the internal circular tube 5, form a flow channel. The medium enters the circular tube 5 through the circular hole 4. Multiple sets of parallel flow guide holes 6 on the surface of the circular tube 5 evenly distribute the medium to the piercing working area. The partition plate 7 inside the circular tube 5 helps guide the flow of the medium, ensuring uniform distribution. The heat generated during piercing is transferred to the spiral heat dissipation pipe 10 through the connecting pipe 9. The spiral heat dissipation pipe 10 increases the heat dissipation area, accelerates heat dissipation, and discharges the heat from the right-side connecting pipe 9, maintaining a stable temperature for the mandrel. Simultaneously, the 5-micron-thick tungsten carbide coating on the surface of the mandrel 1, with its high hardness and wear resistance, reduces wear between the mandrel and the tube blank, extends the service life of the mandrel, and ensures the entire piercing operation is efficient and stable.

[0027] The foregoing description enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-efficiency mandrel structure for flow-guiding and optimized perforation of pipe tubes, comprising a mandrel (1), characterized in that: The inner wall of the top head (1) is fixedly connected with a plurality of parallel circular fixing plates (2), and one end of each of the plurality of circular fixing plates (2) is provided with a plurality of annular fan-shaped grooves (3), and one end of each of the plurality of circular fixing plates (2) is provided with a circular hole (4), and the inner wall of the plurality of circular holes (4) is fixedly connected with the same circular tube (5).

2. The efficient mandrel structure for flow-guiding and optimized perforated pipe according to claim 1, characterized in that: The surface of the circular tube (5) has multiple sets of parallel guide holes (6), the inner wall of the circular tube (5) is fixedly connected to a partition plate (7), and the other end of the circular tube (5) is fixedly connected to a connecting rod (8).

3. The efficient mandrel structure for flow-guiding and optimized perforated pipe according to claim 1, characterized in that: Two symmetrically arranged connecting pipes (9) are fixedly connected to the surface of the circular tube (5). One end of each connecting pipe (9) penetrates the surface of the circular tube (5) and extends to the outside.

4. The efficient mandrel structure for flow-guiding and optimized perforated tubes according to claim 3, characterized in that: A spiral heat dissipation pipe (10) is fixedly connected to the other end of the connecting pipe (9) on the left side, and the other end of the spiral heat dissipation pipe (10) is connected to one end of the connecting pipe (9) on the right side.

5. The efficient mandrel structure for flow-guiding and optimized perforated tubes according to claim 1, characterized in that: The surface of the top head (1) is provided with a tungsten carbide coating, the thickness of which is 5 micrometers.

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