Medical variable-diameter long steel pipe production equipment

Abstract

The utility model relates to medical instrument technical field provides a kind of medical variable-diameter long steel tube production equipment, comprising: base;Knocking mould is set on base, and it is provided with a jack-in hole for inserting steel tube on knocking mould, and the inner diameter of jack-in hole can be reduced when knocking mould is hit, to compress the diameter of steel tube in jack-in hole;Knocking piece, movably set on base, knocking piece can move to the first position of knocking knocking mould and move to the second position of stopping knocking knocking mould.The utility model provides a kind of medical variable-diameter long steel tube production equipment, when using, the steel tube to be variable-diameter is inserted into jack-in hole, then start to knock action, and knocking piece hits knocking mould, so that the diameter of steel tube inserted into jack-in hole is reduced to the same size with the inner hole diameter of jack-in hole.Compared with prior art, the welding quality problem caused by laser welding manufacturing after different diameter steel tube is nested can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a medical variable diameter long steel pipe production equipment. Background Technology

[0002] Currently, variable-diameter long steel pipes are mainly used in engineering fields such as construction and agricultural irrigation. Due to their large overall size and thick walls, they are unsuitable for the medical field. With the development of interventional techniques, the demand for medical variable-diameter long steel pipes is gradually increasing. The lack of technical research on variable-diameter long steel pipes is hindering the innovative development of medical devices. In existing technologies, the production of medical variable-diameter long steel pipes generally involves stacking steel pipes of different diameters and then laser welding them to meet basic usage requirements. However, this process requires a high level of skill from the welder, and the welding quality is inconsistent. For example, fractures may occur at the weld, or the inner diameter change may be a step-like abrupt change rather than a smooth transition. In such cases, turbulence will occur when liquid flows through the diameter change, affecting fluid dynamics. Furthermore, achieving a complete seal is difficult, leading to pressure leakage. Utility Model Content

[0003] Therefore, this utility model aims to solve the problem in the existing technology of manufacturing medical variable diameter long steel pipes by stacking steel pipes of different diameters and then laser welding them, which has the problem that the welding process requires a high level of skill from the operator and the welding quality is unstable. Therefore, this utility model provides a medical variable diameter long steel pipe production equipment.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] This utility model provides a medical variable diameter long steel pipe production equipment, including: a base; a striking mold disposed on the base, the striking mold having an insertion hole for inserting a steel pipe, and the striking mold being struck to reduce the inner diameter of the insertion hole, thereby compressing the diameter of the steel pipe inside the insertion hole; and a striking component movably disposed on the base, the striking component being movable to a first position to strike the striking mold and to a second position to stop striking the striking mold.

[0006] Furthermore, the striking mold includes a mold mounting base, an upper mold, and a lower mold; the mold mounting base is disposed on the base; the upper mold is disposed on the mold mounting base; the lower mold is movably disposed on the mold mounting base, and a force-bearing part is provided at the end of the lower mold away from the upper mold, the force-bearing part extending at least partially beyond the mold mounting base; a first notch is provided on the side of the upper mold facing the lower mold, and a second notch adapted to the first notch is provided on the side of the lower mold facing the upper mold, the first notch and the second notch together forming the insertion hole; when the striking element moves to the first position, it strikes the force-bearing part, causing the lower mold to move toward the upper mold and reducing the inner diameter of the insertion hole.

[0007] Furthermore, the lower mold is provided with an expansion joint, the extension direction of which is perpendicular to the movement direction of the lower mold, in order to disperse excess impact force.

[0008] Furthermore, the striking mold also includes a return spring disposed between the lower mold and the mold mounting base, the return spring being used to force the lower mold to return to its original position when the striking element is in the second position.

[0009] Furthermore, both the upper and lower molds are detachably mounted on the mold mounting base.

[0010] Furthermore, the medical variable diameter long steel pipe production equipment also includes a fixed frame, a striking motor, and a cam frame; the fixed frame is mounted on the base; the striking motor is mounted on the fixed frame; the cam frame is rotatably mounted on the fixed frame relative to the fixed frame, and the cam frame is connected to the output shaft of the striking motor; the striking element is mounted on the cam frame, and the striking motor drives the cam frame to rotate so that the striking element switches between a first position and a second position.

[0011] Furthermore, the striking component is a bearing.

[0012] Furthermore, the bearing is rotatably mounted on the cam carrier about its own axis.

[0013] Furthermore, a plurality of striking elements are spaced apart along the circumferential direction of the cam frame.

[0014] Furthermore, the medical variable diameter long steel pipe production equipment also includes a slide table and a clamping mechanism; the slide table is slidably mounted on the base; the clamping mechanism includes a connecting frame, a clamping head, and a clamping motor; the connecting frame is connected to the slide table; the clamping motor is mounted on the connecting frame, the output shaft of the clamping motor is a hollow shaft, and the output shaft of the clamping motor is connected to the clamping head; the clamping head is located on the side of the connecting frame facing the striking mold, and is used to clamp the steel pipe to be reduced in diameter; the steel pipe can extend into the clamping motor through the output shaft and extend out of the clamping head.

[0015] The technical solution of this utility model has the following advantages:

[0016] This utility model provides a medical-grade variable-diameter long steel pipe production equipment. A striking mold and a striking component are mounted on a base. The striking mold has an insertion hole for inserting a steel pipe, and when the striking mold is struck, the inner diameter of the insertion hole decreases, compressing the diameter of the steel pipe inside. The striking component can move to a first position striking the striking mold and a second position stopping the striking. In use, the steel pipe to be reduced in diameter is inserted into the insertion hole, and then the striking action begins. The striking component impacts the striking mold, reducing the diameter of the steel pipe inserted into the insertion hole to the same size as the inner diameter of the insertion hole. Compared to existing technologies, this avoids welding quality problems caused by laser welding of steel pipes of different diameters after stacking them. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the medical variable diameter long steel pipe production equipment in the embodiments of this utility model;

[0019] Figure 2 This is a schematic diagram of the striking mold and striking components in the medical variable diameter long steel pipe production equipment according to an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram showing the comparison of the steel pipe before and after being struck by the medical variable diameter long steel pipe production equipment in this embodiment of the utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 2. Striking mold; 3. Striking component; 4. Mold mounting base; 5. Upper mold; 6. Lower mold; 7. Insertion hole; 8. Force-bearing part; 9. Expansion joint; 10. Return spring; 11. Fixing frame; 12. Striking motor; 13. Cam frame; 14. Slide table; 15. Motor screw assembly; 16. Clamping motor; 17. Clamping head; 18. Connecting frame; 19. Steel pipe. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1 , Figure 2 as well as Figure 3As shown, this embodiment provides a medical variable-diameter long steel pipe production equipment, including: a base 1; a striking mold 2, disposed on the base 1, the striking mold 2 having an insertion hole 7 for inserting a steel pipe 19, and the striking mold 2 being struck to reduce the inner diameter of the insertion hole 7, thereby compressing the diameter of the steel pipe 19 inside the insertion hole 7; and a striking element 3, movably disposed on the base 1, the striking element 3 being movable to a first position for striking the striking mold 2 and to a second position for stopping striking the striking mold 2. For example, the striking element 3 can perform telescopic movement in a certain direction, intermittently and repeatedly applying striking force to the striking mold 2. For example, the striking element 3 can also perform rotational movement in a certain plane, intermittently and repeatedly applying striking force to the striking mold 2. When the striking element 3 is in the second position, the steel pipe 19 can be fed.

[0028] The medical variable-diameter long steel pipe production equipment provided in this embodiment includes a striking mold 2 and a striking element 3 mounted on a base 1. The striking mold 2 has an insertion hole 7 for inserting a steel pipe 19, and when the striking mold 2 is struck, the inner diameter of the insertion hole 7 is reduced to compress the diameter of the steel pipe 19 inside the insertion hole 7. The striking element 3 can move to a first position to strike the striking mold 2 and to a second position to stop striking the striking mold 2. In use, the steel pipe 19 to be reduced in diameter is inserted into the insertion hole 7, and then the striking action begins. The striking element 3 strikes the striking mold 2, reducing the diameter of the steel pipe 19 inserted into the insertion hole 7 to the same size as the inner diameter of the insertion hole 7. Compared with the prior art, this avoids welding quality problems caused by laser welding of steel pipes 19 of different diameters after stacking them.

[0029] Specifically, the striking mold 2 includes a mold mounting base 4, an upper mold 5, and a lower mold 6. The mold mounting base 4 is disposed on the base 1. The upper mold 5 is disposed on the mold mounting base 4. The lower mold 6 is movably disposed on the mold mounting base 4. For example, the mold mounting base 4 may be provided with a receiving groove for accommodating the upper mold 5 and the lower mold 6. The lower mold 6 is located below the upper mold 5. The upper mold 5 is fixed relative to the mold mounting base 4. The size of the receiving groove can be designed to allow the lower mold 6 to move up and down within a small range relative to the mold mounting base 4. The contact surfaces of the upper mold 5 and the lower mold 6 can be meshed with a toothed structure. The end of the lower mold 6 away from the upper mold 5 is provided with a force-bearing part 8. The force-bearing part 8 extends at least partially beyond the mold mounting base 4. For example, the force-bearing part 8 can be a columnar structure, and the bottom of the columnar structure can be a conical surface. For example, the bottom of the mold mounting base 4 may be provided with a through hole, and the force-bearing part 8 extends outward from the through hole. The upper mold 5 has a first notch on its side facing the lower mold 6, and the lower mold 6 has a second notch on its side facing the upper mold 5 that matches the first notch. For example, both the first and second notches can be semi-circular in cross-section. The first and second notches together form the insertion hole 7, which has a certain depth. When the striking member 3 moves to the first position, it strikes the force-receiving part 8, causing the lower mold 6 to move closer to the upper mold 5 and reducing the inner diameter of the insertion hole 7. That is, in the initial state, the inner diameter of the insertion hole 7 is larger than the outer diameter of the steel pipe 19. When struck, the lower mold 6 moves towards the upper mold 5, at which point the insertion hole 7 contracts, simultaneously squeezing the internal steel pipe 19 and reducing its outer diameter.

[0030] The lower mold 6 is provided with an expansion joint 9, the extension direction of which is perpendicular to the movement direction of the lower mold 6, in order to disperse excess impact force. For example, when the lower mold 6 moves up and down, the expansion joint 9 can extend horizontally, and the expansion joint 9 can be set on the left and right sides of the lower mold 6, extending inward by a certain dimension. For example, multiple expansion joints 9 can be set at intervals along the longitudinal direction.

[0031] The striking mold 2 also includes a return spring 10, disposed between the lower mold 6 and the mold mounting base 4. The return spring 10 is used to force the lower mold 6 to return to its original position when the striking element 3 is in the second position. For example, the return spring 10 can be a helical spring. For example, one or more return springs 10 can be symmetrically arranged on the left and right sides of the lower mold 6. When the force-bearing part 8 is struck, the return spring 10 is in a compressed state. When the force-bearing part 8 is not struck, the return spring 10 returns to its original deformation, allowing the lower mold 6 to move downwards, at which time the insertion hole 7 enlarges again.

[0032] Both the upper mold 5 and the lower mold 6 are detachably mounted on the mold mounting base 4. For example, both the upper mold 5 and the lower mold 6 can be bolted to the mold mounting base 4 for easy disassembly. This arrangement allows for the replacement of molds with different insertion hole 7 sizes to meet different diameter variation requirements, improving applicability.

[0033] The medical variable diameter long steel pipe production equipment also includes a fixed frame 11, a striking motor 12, and a cam frame 13. For example, the fixed frame 11 can be an L-shaped plate, and the horizontal part of the fixed frame 11 can be bolted to the base 1. The striking motor 12 can be bolted to the vertical part of the fixed frame 11. The cam frame 13 is connected to the output shaft of the striking motor 12, so that the cam frame 13 can rotate relative to the fixed frame 11. The striking element 3 is disposed on the cam frame 13, and the striking motor 12 drives the cam frame 13 to rotate so that the striking element 3 switches between a first position and a second position. The mold mounting base 4 can also be bolted to the vertical part of the fixed frame 11 and is located above the cam frame 13.

[0034] Preferably, the striking element 3 is a bearing, and when the cam frame 13 rotates, the outer ring of the bearing strikes the force-bearing part 8.

[0035] The bearing is rotatably mounted on the cam frame 13 around its own axis. For example, the bearing can be mounted on the cam frame 13 via a rotating shaft, allowing it to rotate either with the cam frame 13 or on its own axis. This arrangement allows the bearing to rotate relative to the force-bearing part 8 when it comes into contact with it during impact, reducing friction during impact and improving the service life and reliability of the equipment.

[0036] Multiple striking elements 3 are spaced apart along the circumferential direction of the cam frame 13. For example, one striking element 3 can be provided at each of the upper and lower ends of the cam frame 13.

[0037] The medical-grade variable-diameter long steel pipe production equipment also includes a slide table 14 and a clamping mechanism. The slide table 14 is slidably mounted on the base 1. For example, the slide table 14 can be mounted on the base 1 via a motor screw assembly 15 to facilitate smooth material feeding. The clamping mechanism includes a connecting frame 18, a clamping head 17, and a clamping motor 16. The connecting frame 18 is connected to the slide table 14. For example, the connecting frame 18 can be an L-shaped plate, with its horizontal portion connected to the top surface of the slide table 14. The clamping motor 16 can be mounted on the vertical portion of the connecting frame 18. The output shaft of the clamping motor 16 is a hollow shaft and is connected to the clamping head 17. The clamping head 17 is located on the side of the connecting frame 18 facing the striking mold 2 and is used to clamp the steel pipe 19 to be reduced in diameter. The steel pipe 19 can extend into the clamping head 17 via the output shaft of the clamping motor 16. For example, the clamping head 17 can be a conventional pipe clamping head 17, in which the diameter of the hole can be manually adjusted to clamp steel pipes 19 of different specifications.

[0038] In use, first place the slide table 14 at the end furthest from the striking motor 12. Pass the steel pipe 19 to be struck through the output shaft of the clamping motor 16. After the steel pipe 19 extends 1mm-2mm into the insertion hole 7 of the striking mold 2, adjust the clamping head 17 to clamp the steel pipe 19. Simultaneously start all motors to begin the striking action. The rotating striking motor 12 drives the bearing to strike the striking mold 2, reducing the diameter of the steel pipe 19 inserted into the insertion hole 7. The slide table 14 feeds smoothly, slowly sending the part to be struck into the striking mold 2. The clamping motor 16 can rotate the steel pipe 19 to ensure even striking and maintain the roundness of the struck steel pipe 19. After striking, turn off all motors, release the clamping head 17, and remove the steel pipe 19.

[0039] In summary, the medical variable diameter long steel pipe production equipment of this application can produce variable diameter steel pipes 19 with smooth transitions on both the inner and outer surfaces, which is conducive to fluid flow and will not produce turbulence; it can be used for the production of long variable diameter steel pipes 19, and the variable diameter length is not limited; the modular design can be used for the variable diameter of steel pipes 19 of different diameters, increasing the scope of application.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A medical variable-diameter long steel pipe production equipment, characterized in that, include: Base (1); A striking mold (2) is provided on the base (1). The striking mold (2) is provided with an insertion hole (7) for inserting a steel pipe (19). When the striking mold (2) is struck, the inner diameter of the insertion hole (7) is reduced to compress the diameter of the steel pipe (19) inside the insertion hole (7). The striking element (3) is movably disposed on the base (1). The striking element (3) is capable of moving to a first position to strike the striking mold (2) and to a second position to stop striking the striking mold (2).

2. The medical variable diameter long steel pipe production equipment according to claim 1, characterized in that, The striking mold (2) includes a mold mounting base (4), an upper mold (5), and a lower mold (6); The mold mounting base (4) is disposed on the base (1); The upper mold (5) is mounted on the mold mounting base (4); The lower mold (6) is movably mounted on the mold mounting base (4). A force-bearing part (8) is provided at the end of the lower mold (6) away from the upper mold (5). The force-bearing part (8) extends at least partially out of the mold mounting base (4). The upper mold (5) has a first notch on the side facing the lower mold (6), and the lower mold (6) has a second notch on the side facing the upper mold (5) that matches the first notch. The first notch and the second notch together form the insertion hole (7). When the striking element (3) moves to the first position, it strikes the force-receiving part (8) so that the lower mold (6) moves toward the direction close to the upper mold (5) and reduces the inner diameter of the insertion hole (7).

3. The medical variable diameter long steel pipe production equipment according to claim 2, characterized in that, The lower mold (6) is provided with an expansion joint (9), the extension direction of which is perpendicular to the movement direction of the lower mold (6) to disperse excess impact force.

4. The medical variable diameter long steel pipe production equipment according to claim 2, characterized in that, The striking mold (2) also includes a return spring (10) disposed between the lower mold (6) and the mold mounting base (4). The return spring (10) is used to force the lower mold (6) to return to its original position when the striking element (3) is in the second position.

5. The medical variable diameter long steel pipe production equipment according to claim 2, characterized in that, Both the upper mold (5) and the lower mold (6) are detachably mounted on the mold mounting base (4).

6. The medical variable diameter long steel pipe production equipment according to any one of claims 1-5, characterized in that, It also includes a mounting bracket (11), a striking motor (12), and a cam bracket (13); The fixing frame (11) is mounted on the base (1); The striking motor (12) is mounted on the fixed frame (11); The cam frame (13) is rotatably mounted on the fixed frame (11) relative to the fixed frame (11), and the cam frame (13) is connected to the output shaft of the striking motor (12); The striking element (3) is mounted on the cam frame (13), and the striking motor (12) drives the cam frame (13) to rotate so that the striking element (3) switches between the first position and the second position.

7. The medical variable diameter long steel pipe production equipment according to claim 6, characterized in that, The striking component (3) is a bearing.

8. The medical variable diameter long steel pipe production equipment according to claim 7, characterized in that, The bearing is rotatably mounted on the cam frame (13) about its own axis.

9. The medical variable diameter long steel pipe production equipment according to claim 6, characterized in that, A plurality of striking elements (3) are spaced apart along the circumferential direction of the cam frame (13).

10. The medical variable diameter long steel pipe production equipment according to claim 1, characterized in that, It also includes a slide (14) and a clamping mechanism; The slide (14) is slidably mounted on the base (1); The clamping mechanism includes a connecting frame (18), a clamping head (17), and a clamping motor (16); The connecting frame (18) is connected to the slide (14); The clamping motor (16) is mounted on the connecting frame (18), and the output shaft of the clamping motor (16) is a hollow shaft. The output shaft of the clamping motor (16) is connected to the clamping head (17). The clamping head (17) is disposed on the side of the connecting frame (18) facing the striking mold (2) and is used to clamp the steel pipe (19) to be subjected to diameter reduction. The steel pipe (19) can extend into the clamping motor (16) through the output shaft and extend out from the clamping head (17).

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