A steel pipe processing device

Abstract

The application provides a steel pipe machining device, relates to the technical field of steel pipe machining, and comprises a supporting table, a first connecting die and a second connecting die are fixed on the supporting table, a cold-drawing plate is arranged between the first connecting die and the second connecting die, a die hole is arranged in the middle of the cold-drawing plate, an annular heat dissipation cavity is arranged on the circumferential side of the die hole, a first heat dissipation channel and a second heat dissipation channel are arranged on the cold-drawing plate and are communicated with the annular heat dissipation cavity, and the first heat dissipation channel and the second heat dissipation channel are both extended to the outside of the cold-drawing plate at the end away from the annular heat dissipation cavity. The annular heat dissipation cavity is arranged around the circumferential side of the die hole, can directly cover the concentrated heating area of the die hole, and is matched with the first heat dissipation channel and the second heat dissipation channel to dissipate heat, so that the abrasion and size deformation of the die hole caused by high temperature are effectively avoided, the service life of the cold-drawing plate is prolonged, and the machining precision of the steel pipe is ensured.

Description

Technical Field

[0001] This application relates to the field of steel pipe processing technology, and more specifically, to a steel pipe processing apparatus. Background Technology

[0002] During the cold drawing process of steel pipes, the pre-treated steel pipe billet is lubricated and then pulled by a traction mechanism to force the billet through the die hole, thereby achieving size reduction and performance optimization through the plastic deformation of the metal.

[0003] However, during the cold drawing process, the intense friction between the steel pipe blank and the inner wall of the die hole generates a large amount of heat, which easily accumulates inside the die, causing the die hole temperature to rise continuously. This increased die hole temperature not only accelerates die hole wear, shortens the die's service life, and increases equipment maintenance costs, but also alters the microstructure of the metal surrounding the die hole, leading to slight deformations in the die hole dimensions, making it impossible to meet the processing requirements of high-precision steel pipes. Summary of the Invention

[0004] The purpose of this application is to provide a steel pipe processing device that can solve the technical problems raised in the background art.

[0005] This application provides a steel pipe processing device, including a support platform. A first connecting mold and a second connecting mold are fixed on the support platform. A cold-drawn plate is inserted between the first connecting mold and the second connecting mold. A mold hole is provided in the middle of the cold-drawn plate. An annular heat dissipation cavity is provided on the cold-drawn plate along the periphery of the mold hole. A first heat dissipation channel and a second heat dissipation channel are provided on the cold-drawn plate, which are connected to the annular heat dissipation cavity. The ends of the first heat dissipation channel and the second heat dissipation channel away from the annular heat dissipation cavity both extend to the outer side of the cold-drawn plate.

[0006] Furthermore, both the first connecting mold and the second connecting mold have insertion slots on opposite sides that are adapted to the cold-drawn plate. The cold-drawn plate is inserted into the two insertion slots from top to bottom. The first connecting mold has a first pipe, one end of which is connected to the first heat dissipation channel of the cold-drawn plate inserted into the insertion slot. The second connecting mold has a second pipe, one end of which is connected to the second heat dissipation channel of the cold-drawn plate inserted into the insertion slot.

[0007] Furthermore, the insertion slot is provided with a sealing rubber gasket, and the sealing rubber gasket is provided with a communication hole for the first pipe to communicate with the first heat dissipation channel or for the second pipe to communicate with the second heat dissipation channel.

[0008] Furthermore, the first pipe is provided with a first quick connector at the end away from the cold-drawn plate, and the second pipe is provided with a second quick connector at the section away from the cold-drawn plate.

[0009] Furthermore, copper heat dissipation pipes are embedded in the annular heat dissipation cavity, the first heat dissipation channel, and the second heat dissipation channel.

[0010] Furthermore, the distance between the inner wall of the mold hole and the inner wall of the annular heat dissipation cavity is 3-8 mm.

[0011] Furthermore, the upper ends of the first connecting mold and the second connecting mold are provided with pressure blocks, the bottom of the pressure blocks abut against the top of the cold-drawn plate, the pressure blocks are provided with bolt through holes corresponding to the first connecting mold and the second connecting mold, the first connecting mold and the second connecting mold are provided with threaded connection holes corresponding to the bolt through holes, and the pressure blocks are connected to the first connecting mold and the second connecting mold by bolts.

[0012] The beneficial effects of this utility model are:

[0013] This invention features an annular heat dissipation cavity arranged around the periphery of the die hole, which can directly cover the concentrated heat-generating area of ​​the die hole. Combined with the first heat dissipation channel, it effectively prevents the die hole from aggravating wear and dimensional deformation due to high temperature, extends the service life of the cold-drawn plate, and ensures the processing accuracy of the steel pipe. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 These are schematic diagrams of structures in some embodiments of this application;

[0016] Figure 2 These are cross-sectional views of some embodiments of this application;

[0017] The reference numerals in the attached figures are as follows:

[0018] 1. Support platform; 2. First connecting mold; 3. Second connecting mold; 4. Cold-drawn plate; 41. Mold hole; 42. Annular heat dissipation cavity; 43. First heat dissipation channel; 44. Second heat dissipation channel; 5. Insertion groove; 6. First pipe; 7. Second pipe; 8. Sealing rubber gasket; 81. Connecting hole; 9. First quick connector; 10. Second quick connector; 11. Copper heat dissipation pipe; 12. Pressure block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Specific Implementation

[0025] Example 1:

[0026] like Figure 1 and Figure 2 As shown, this application provides a steel pipe processing device, including a support platform 1. A first connecting mold 2 and a second connecting mold 3 are fixed on the support platform 1. A cold-drawn plate 4 is inserted between the first connecting mold 2 and the second connecting mold 3. A mold hole 41 is provided in the middle of the cold-drawn plate 4. An annular heat dissipation cavity 42 is provided on the cold-drawn plate 4 along the periphery of the mold hole 41. A first heat dissipation channel 43 and a second heat dissipation channel 44 are provided on the cold-drawn plate 4, communicating with the annular heat dissipation cavity 42. The ends of the first heat dissipation channel 43 and the second heat dissipation channel 44 away from the annular heat dissipation cavity 42 both extend to the outer side of the cold-drawn plate 4. Specifically, the mold hole 41 in the middle of the cold-drawn plate 4 becomes the steel pipe processing device. The forming channel for the tube blank is formed by the traction mechanism. When the tube blank passes through the die hole 41, it undergoes plastic deformation under the constraint of the die hole 41, eventually forming a steel tube that meets the specifications. During the cold drawing process, a large amount of heat generated by the friction between the die hole 41 and the tube blank is partially dissipated through the direct contact between the die hole 41 and the outside air, and partially transferred to the annular heat dissipation cavity 42. Finally, the heat is dissipated through the first heat dissipation channel 43 and the second heat dissipation channel 44. This can effectively prevent heat from accumulating in the cold-drawn plate 4, avoid increased wear and dimensional deformation of the die hole 41 due to high temperature, extend the service life of the cold-drawn plate 4, and ensure the processing accuracy of the steel tube.

[0027] like Figure 1 and Figure 2 As shown, both the first connecting mold 2 and the second connecting mold 3 have insertion slots 5 on opposite sides that are adapted to the cold-drawn plate 4. The cold-drawn plate 4 is inserted into the two insertion slots 5 from top to bottom. The first connecting mold 2 has a first pipe 6, one end of which is connected to the first heat dissipation channel 43 of the cold-drawn plate 4 inserted into the insertion slot 5. The second connecting mold 3 has a second pipe 7, one end of which is connected to the second heat dissipation channel 44 of the cold-drawn plate 4 inserted into the insertion slot 5. When the cold-drawn plate 4 is inserted into the slot, the first pipe 6 on the first connecting mold 2 and the cold-drawn plate 4 are connected to the first heat dissipation channel 44 of the cold-drawn plate 4 inserted into the insertion slot 5. The first heat dissipation channel 43 of the cold-drawn plate 4 is automatically connected, and the second pipe 7 on the second connecting mold 3 is automatically connected to the second heat dissipation channel 44 of the cold-drawn plate 4. The external cooling system continuously delivers cooling medium (such as cold air, coolant, etc.) to the annular heat dissipation cavity 42 of the cold-drawn plate 4 through the first pipe 6 and the first heat dissipation channel 43. After the cooling medium absorbs the heat generated by the cold drawing friction of the die hole 41, it flows out through the second heat dissipation channel and the second pipe 7. During the cold drawing process of the steel pipe, the heat of the die hole 41 is continuously carried away, thereby achieving efficient cooling of the die hole 41.

[0028] like Figure 2As shown, a sealing rubber gasket 8 is provided in the insertion groove 5. The sealing rubber gasket 8 is provided with a connecting hole 81 for the first pipe 6 to connect with the first heat dissipation channel 43 or the second pipe 7 to connect with the second heat dissipation channel 44. The sealing rubber gasket 8 achieves a tight seal through elastic compression. With the alignment of the connecting hole 81, it ensures the smooth flow path of the cooling medium while effectively preventing medium leakage, avoiding the decrease in heat dissipation efficiency and waste of cooling medium caused by leakage, and ensuring the stable cooling effect of the mold hole 41.

[0029] like Figure 1 and Figure 2 As shown, the first pipe 6 is provided with a first quick connector 9 at the end away from the cold-drawn plate 4, and the second pipe 7 is provided with a second quick connector 10 at the end away from the cold-drawn plate 4. The quick connectors are existing technology and will not be described in detail here. The operator can quickly connect the external cooling medium supply pipe and the output pipe to the first pipe 6 and the second pipe 7 respectively through the first quick connector 9 and the second quick connector 10, so as to achieve quick connection and disconnection and shorten the pipe connection time.

[0030] Example 2:

[0031] like Figure 2 As shown, compared with Embodiment 1, copper heat dissipation pipes 11 are embedded in the annular heat dissipation cavity 42, the first heat dissipation channel 43, and the second heat dissipation channel 44. The high thermal conductivity of the copper heat dissipation pipes 11 significantly improves the heat transfer efficiency from the mold hole 41 to the cooling medium. Compared with simply relying on the cooling medium to directly contact heat dissipation, it can respond to the temperature change of the mold hole 41 more quickly. At the same time, the copper heat dissipation pipes 11 can protect the inner wall of the heat dissipation channel from long-term erosion and corrosion by the cooling medium, reduce thermal stress damage to the cold-drawn plate 4, and extend its service life.

[0032] like Figure 2 As shown, the distance between the inner wall of the die hole 41 and the inner wall of the annular heat dissipation cavity 42 is 3-8mm. This distance ensures that the cold-drawn plate 4 has sufficient structural strength around the die hole 41, preventing deformation or cracking of the die hole 41 under stress due to excessive distance. It also ensures that the copper heat dissipation pipe 11 or cooling medium in the annular heat dissipation cavity 42 maintains efficient heat exchange with the inner wall of the die hole 41, avoiding excessive distance that reduces heat conduction efficiency and prevents heat from being discharged in time. In this embodiment, the distance between the inner wall of the die hole 41 and the inner wall of the annular heat dissipation cavity 42 is 6mm.

[0033] Example 3:

[0034] like Figure 1 and Figure 2As shown, compared with Embodiment 1 or Embodiment 2, the upper ends of the first connecting mold 2 and the second connecting mold 3 are provided with pressure blocks 12, the bottom of the pressure blocks 12 abuts against the top of the cold-drawn plate 4, the pressure blocks 12 are provided with bolt through holes corresponding to the first connecting mold 2 and the second connecting mold 3, the first connecting mold 2 and the second connecting mold 3 are provided with threaded connection holes corresponding to the bolt through holes, and the pressure blocks 12 are connected to the first connecting mold 2 and the second connecting mold 3 by bolts; specifically, the bolts pass through the bolt through holes on the pressure blocks 12 and are threadedly connected to the threaded connection holes on the corresponding connecting molds. By setting the pressure blocks 12, it is ensured that the cold-drawn plate 4 will not be longitudinally displaced or loosened due to the traction force or vibration of the billet during the cold drawing process, thereby reducing steel pipe processing defects caused by the shaking of the cold-drawn plate 4.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steel pipe processing device, characterized in that: The device includes a support platform, on which a first connecting mold and a second connecting mold are fixedly mounted. A cold-drawn plate is inserted between the first connecting mold and the second connecting mold. A mold hole is provided in the middle of the cold-drawn plate. An annular heat dissipation cavity is provided on the cold-drawn plate along the periphery of the mold hole. A first heat dissipation channel and a second heat dissipation channel are provided on the cold-drawn plate, which are connected to the annular heat dissipation cavity. The ends of the first heat dissipation channel and the second heat dissipation channel away from the annular heat dissipation cavity both extend to the outer side of the cold-drawn plate.

2. The steel pipe processing device according to claim 1, characterized in that: The first connecting mold and the second connecting mold each have a plug slot on their opposite sides that is adapted to the cold-drawn plate. The cold-drawn plate is inserted into the two plug slots from top to bottom. The first connecting mold has a first pipe, one end of which is connected to the first heat dissipation channel of the cold-drawn plate inserted into the plug slot. The second connecting mold has a second pipe, one end of which is connected to the second heat dissipation channel of the cold-drawn plate inserted into the plug slot.

3. The steel pipe processing device according to claim 2, characterized in that: The insertion slot is provided with a sealing rubber gasket, and the sealing rubber gasket is provided with a communication hole for the first pipe to communicate with the first heat dissipation channel or for the second pipe to communicate with the second heat dissipation channel.

4. The steel pipe processing device according to claim 3, characterized in that: The first pipe has a first quick connector at the end away from the cold-drawn plate, and the second pipe has a second quick connector at the section away from the cold-drawn plate.

5. The steel pipe processing device according to claim 1, characterized in that: Copper heat dissipation pipes are embedded in the annular heat dissipation cavity, the first heat dissipation channel, and the second heat dissipation channel.

6. The steel pipe processing device according to claim 5, characterized in that: The distance between the inner wall of the mold hole and the inner wall of the annular heat dissipation cavity is 3-8 mm.

7. The steel pipe processing device according to claim 1, characterized in that: The first connecting mold and the second connecting mold are provided with pressure blocks at their upper ends. The bottom of the pressure blocks abuts against the top of the cold-drawn plate. The pressure blocks are provided with bolt through holes corresponding to the first connecting mold and the second connecting mold. The first connecting mold and the second connecting mold are provided with threaded connection holes corresponding to the bolt through holes. The pressure blocks are connected to the first connecting mold and the second connecting mold by bolts.

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