Adjusting device for processing top of seamless steel tube puncher
By designing a mandrel adjustment device for a seamless steel pipe piercing machine, and using an electric telescopic rod to support the mandrel in conjunction with a heat dissipation component, the problem of mandrel sinking was solved, ensuring the stability of the piercing angle and the life of the mandrel, thereby improving production quality.
Patent Information
- Application Number
- CN202520228208.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-13
AI Technical Summary
The sinking of the top rod end of the seamless steel pipe piercing machine leads to unstable production quality.
A mandrel processing and adjustment device for a seamless steel pipe piercing machine was designed, including a mandrel, a mounting frame, and a heat dissipation assembly. The mandrel is supported by an electric telescopic rod to prevent displacement, and the heat dissipation assembly reduces the mandrel temperature and extends its service life.
It effectively prevents the mandrel from shifting, maintains a stable piercing angle, extends the service life of the mandrel, and improves production quality.
Smart Images

Figure CN223642472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of piercing machine technology, specifically to a processing and adjustment device for the mandrel of a seamless steel pipe piercing machine. Background Technology
[0002] The seamless steel pipe piercing mill is used in the production of seamless steel pipes to pierce solid billets into hollow tubes. The whole process generally includes piercing, rolling and diameter setting. Piercing is the first step in metal deformation. The pierced tube has a thicker wall, shorter length and poorer inner and outer surface quality, hence the name "burden tube".
[0003] During the operation of existing seamless steel pipe piercing machines, the end of the push rod will sink under the influence of gravity, which will affect the production quality of seamless steel pipes. Utility Model Content
[0004] The purpose of this utility model is to provide a processing and adjustment device for the mandrel of a seamless steel pipe piercing machine, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mandrel processing and adjustment device for a seamless steel pipe piercing machine, comprising a mandrel, a first mounting frame, and a second mounting frame. The mandrel is a hollow tube, with a mounting plate fixedly connected to one end of the mandrel, a mandrel threadedly connected to the outer side of the end of the mandrel away from the mounting plate, a heat dissipation component provided on the inner side of the end of the mandrel away from the mounting plate, and multiple adjustment components provided on the outer surface of the second mounting frame.
[0006] Preferably, the heat dissipation assembly includes a heat dissipation block, which is threaded to the inner side of the top rod away from the mounting plate. The heat dissipation block has a cavity inside, and a thermal pad is fixedly connected to the outer surface of the heat dissipation block. Two connecting pipes are threaded to both ends of the side of the heat dissipation block.
[0007] Preferably, the adjustment assembly includes an electric telescopic rod, which is fixedly connected to the outer surface of the second mounting frame. The telescopic end of the electric telescopic rod passes through the second mounting frame and is fixedly connected to a third mounting frame. A rotating roller is rotatably connected to the inner side wall of the third mounting frame.
[0008] Preferably, the first mounting bracket and mounting plate are circumferentially distributed on the side and have multiple through holes, with fixing bolts passing through the inner side of the through holes.
[0009] Preferably, the second mounting bracket is octagonal, and multiple adjustment components are arranged in a circular pattern on the outer side of the second mounting bracket.
[0010] Preferably, the top head has an internal cavity, the shape of the heat sink block matches the internal cavity of the top head, and the first mounting bracket has a through hole in the middle, through which the two connecting pipes pass.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] In use, the electric telescopic rod drives the third mounting bracket to extend, causing the rotating roller to fit against the surface of the top rod, thereby supporting the top rod and preventing it from shifting during movement. This avoids changes in the perforation angle during piercing. By adjusting the extension distance of the electric telescopic rod, it can support top rods of different sizes. A water pump pumps cooling water into the connecting pipe, and a heat-conducting pad directs the heat from the top rod to the heat sink. The cooling water flows between the heat sink and the connecting pipe, carrying away the heat from the heat sink, thus dissipating heat from the top rod and improving its service life. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of a partially unfolded structure of the present invention;
[0015] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;
[0016] Figure 4 This is a partial cross-sectional view of the present invention.
[0017] In the diagram: 1. Top rod; 2. First mounting bracket; 3. Second mounting bracket; 4. Mounting plate; 5. Top head; 6. Heat dissipation assembly; 61. Heat dissipation block; 62. Thermal pad; 63. Connecting pipe; 7. Adjustment assembly; 71. Electric telescopic rod; 72. Third mounting bracket; 73. Rotating roller; 8. Fixing bolt; 9. Perforation. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-4 This utility model provides a technical solution: a processing and adjustment device for the top head of a seamless steel pipe piercing machine, including a top rod 1, a first mounting frame 2 and a second mounting frame 3. The top rod 1 is a hollow tube, a mounting plate 4 is welded to one end of the top rod 1, a top head 5 is threaded to the outer side of the top rod 1 away from the mounting plate 4, a heat dissipation component 6 is installed on the inner side of the top rod 1 away from the mounting plate 4, and multiple adjustment components 7 are installed on the outer surface of the second mounting frame 3.
[0020] The heat dissipation assembly 6 includes a heat sink 61, which is threaded to the inner side of the top rod 1 away from the mounting plate 4. The heat sink 61 has a cavity inside. The thermal pad 62 is bonded to the outer surface of the heat sink 61. Two connecting pipes 63 are threaded to the two ends of the side of the heat sink 61.
[0021] The adjustment assembly 7 includes an electric telescopic rod 71, which is bolted to the outer surface of the second mounting frame 3. The telescopic end of the electric telescopic rod 71 passes through the second mounting frame 3. The third mounting frame 72 is bolted to the telescopic end of the electric telescopic rod 71. The rotating roller 73 is rotatably mounted on the inner wall of the third mounting frame 72 via a bearing. The electric telescopic rod 71 is connected to an external controller via a wire, and the electric telescopic rod 71 is opened and closed by the external controller.
[0022] The first mounting bracket 2 and the mounting plate 4 are circumferentially distributed on the side and have multiple through holes. The fixing bolts 8 are inserted inside the through holes, and the mounting plate 4 is fixedly installed on the side of the first mounting bracket 2 by the multiple fixing bolts 8.
[0023] The second mounting bracket 3 is octagonal, and multiple adjustment components 7 are arranged in a circular pattern on the outer side of the second mounting bracket 3. There are four sets of adjustment components 7.
[0024] The top head 5 has an internal cavity, and the shape of the heat sink 61 matches the internal cavity of the top head 5. The first mounting bracket 2 has a through hole 9 in the middle, and two connecting pipes 63 pass through the through hole 9. The ends of the two connecting pipes 63 away from the heat sink 61 are connected to the water pump inlet and outlet.
[0025] Working principle: When using this utility model, select a suitable size top rod according to the seamless steel pipe to be manufactured, start the electric telescopic rod 71, the electric telescopic rod 71 drives the third mounting bracket 72 to extend, so that the rotating roller 73 fits against the surface of the top rod, thereby supporting and pressing the top rod 1, so that the top rod 1 will not deviate when moving, and avoid the perforation angle of the top head 5 changing when perforating. By adjusting the extension distance of the electric telescopic rod 71, top rods 1 of different sizes can be supported. Cooling water is pumped into the connecting pipe 63 by a water pump. The heat conducting pad 62 guides the heat on the top head 5 to the heat dissipation block 61. The cooling water flows in the middle of the heat dissipation block 61 and the connecting pipe 63 and carries away the heat on the heat dissipation block 61, thereby dissipating heat from the top head and improving the service life of the top head 5. This utility model has the advantages of being easy to use and having good performance.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mandrel processing and adjustment device for a seamless steel pipe piercing machine, comprising a mandrel (1), a first mounting bracket (2), and a second mounting bracket (3), characterized in that: The top rod (1) is a hollow tube. One end of the top rod (1) is fixedly connected to the mounting plate (4). The outer side of the top rod (1) away from the mounting plate (4) is threaded with a top head (5). The inner side of the top rod (1) away from the mounting plate (4) is provided with a heat dissipation component (6). The outer surface of the second mounting bracket (3) is provided with multiple adjustment components (7).
2. The seamless steel pipe piercing machine mandrel processing and adjustment device according to claim 1, characterized in that: The heat dissipation assembly (6) includes a heat dissipation block (61), which is threaded to the inner side of the top rod (1) away from the mounting plate (4). The heat dissipation block (61) has a cavity inside, and a heat-conducting pad (62) is fixedly connected to the outer surface of the heat dissipation block (61). Two connecting pipes (63) are threaded to both ends of the side of the heat dissipation block (61).
3. The seamless steel pipe piercing machine mandrel processing and adjustment device according to claim 1, characterized in that: The adjustment assembly (7) includes an electric telescopic rod (71), which is fixedly connected to the outer surface of the second mounting frame (3). The telescopic end of the electric telescopic rod (71) passes through the second mounting frame (3) and is fixedly connected to a third mounting frame (72). A rotating roller (73) is rotatably connected to the inner side wall of the third mounting frame (72).
4. The seamless steel pipe piercing machine mandrel processing and adjustment device according to claim 1, characterized in that: The first mounting bracket (2) and mounting plate (4) are circumferentially distributed on the side and have multiple through holes, with fixing bolts (8) passing through the inside of the through holes.
5. The seamless steel pipe piercing machine mandrel processing and adjustment device according to claim 1, characterized in that: The second mounting bracket (3) is octagonal, and multiple adjustment components (7) are arranged in a circular pattern on the outer side of the second mounting bracket (3).
6. The seamless steel pipe piercing machine mandrel processing and adjustment device according to claim 2, characterized in that: The top head (5) has an internal cavity, and the shape of the heat sink (61) matches the internal cavity of the top head (5). The first mounting bracket (2) has a through hole (9) in the middle, and the two connecting pipes (63) pass through the through hole (9).