Radial extrusion device for metal pipe

Abstract

The utility model discloses a radial extrusion device for a metal pipe, and relates to the technical field of radial extrusion devices. The radial extrusion device for the metal pipe comprises a base, a mounting plate is fixedly connected to the upper surface of the base, a round rod is arranged on the mounting plate, the right end of the round rod rotationally penetrates out of the right side surface of the mounting plate, a second round rod is fixedly connected to the left end of the round rod, and cavities are formed in the second round rod and the round rod correspondingly; the interiors of the two cavities communicate with each other, threaded rods are rotationally connected to the inner walls of the left sides of the cavities, threaded sleeves are arranged on the outer surfaces of the threaded rods in a threaded sleeving mode, connecting plates are fixedly connected to the outer surfaces of the threaded sleeves, and grooves are formed in the outer surfaces of the second round rods, so that the pipes can be fixed more conveniently; and the problem that continuous force needs to be applied to the rotating disc like a traditional structure to avoid the problem that the fixing structure is not firm due to looseness of the rotating disc is solved, and the difficulty of fixing the pipe is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of radial extrusion devices, in particular to a radial extrusion device used for metal pipes. Background Art

[0002] Vertical radial extrusion pipe making machine is a mechanical equipment used for the efficient production of small-diameter metal pipes. It has the advantages of short production cycle, high extrusion forming force, high density and low mechanical noise.

[0003] For example, the Chinese utility model patent with patent publication number CN220295526U includes a base, a motor 1 is fixedly connected to the front side of the top end of the base, a hydraulic rod 1 is fixedly connected to the front end of the fixed block 2, the output end of the hydraulic rod 1 and the middle part of the fixed block 1 are rotatably connected to a connecting rod, the output end of the motor 1 is connected to the front side of the front connecting rod by a chain, a transmission rod is arranged inside the connecting rod, a rack 1 is fixedly connected to the top end of the transmission rod, four front supports are rotatably connected around the outer end of the transmission rod, a gear 1 is arranged inside the connecting rod, and a threaded rod is fixedly connected inside the gear 1.

[0004] Although this patent realizes the ability to process metal pipes of different buckle diameters according to metal pipes of different lengths, which greatly improves the versatility of the equipment and improves the production efficiency of the enterprise, when processing the metal pipe, it is necessary to use a rack in conjunction with a transmission rod to drive the front and rear supports to move, and then fix the pipe. However, after fixation, since the rack does not have self-locking properties, it is necessary to use a nut to lock the threaded rod. However, since the front and rear supports need to be close to the inner wall of the pipe when fixing the pipe, when locking the threaded rod with the nut, it is still necessary to control the turntable to prevent it from reversing and causing loose fixation. In actual applications, this fixing method is relatively cumbersome, and it is easy to have the problem of loosening due to slight rotation of the turntable when operating the nut. In view of this, we propose a radial extrusion device for metal pipes. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a radial extrusion device for metal pipes, which can solve the problem of complicated fixing process.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a radial extrusion device for metal pipes, comprising a base, the upper surface of the base is fixedly connected to a mounting plate, a round rod is arranged on the mounting plate, the right end of the round rod rotates and passes through the right side surface of the mounting plate, the left end of the round rod is fixedly connected to a second round rod, the second round rod and the round rod are both provided with cavities, the interiors of the two cavities are communicated, a threaded rod is rotatably connected to the left inner wall of the cavity, a threaded sleeve is provided on the outer surface of the threaded rod, a connecting plate is fixedly connected to the outer surface of the second round rod, a groove is provided on the bottom wall of the groove, a sliding groove extending into the cavity is provided, the right end of the threaded rod is fixedly connected to a push rod, the internal sliding sleeve of the push rod is provided with a connecting rod, the right end of the connecting rod movably passes through the right end of the round rod, and a locking assembly is arranged on the connecting rod.

[0007] Preferably, the locking assembly includes a knob, which is fixedly connected to the right end of the connecting rod, a protrusion is fixedly connected to the left surface of the knob, a second groove matching the protrusion is opened at the right end of the round rod, a movement cavity is opened inside the round rod, a circular ring is rotatably sleeved on the outer surface of the connecting rod, a spring is fixedly connected to the right surface of the circular ring, the right end of the spring is fixedly connected to the inner wall of the movement cavity, a rear support rod is rotatably connected to the inner wall of the groove, a front support rod is arranged inside the groove, the right end of the front support rod is rotatably connected to the front end of the rear support rod, and a side surface of the connecting plate away from the threaded sleeve is rotatably connected to the front support rod.

[0008] Preferably, the upper surface of the base is provided with two second sliding grooves, the inner walls of the two second sliding grooves are respectively fixedly connected with limiting sliding rods, and the outer surfaces of the two limiting sliding rods are respectively provided with clamping grooves.

[0009] Preferably, a mounting plate is also provided on the base, and a limiting protrusion is provided on the outer surface sliding sleeve of the limiting sliding rod, and the upper side surface of the limiting protrusion is fixedly connected to the lower surface of the mounting plate.

[0010] Preferably, a lifting plate is provided on the upper surface of the mounting plate on the left side, a locking plate is fixedly connected to the lower surface of the lifting plate, and an arc groove is provided on the lower side surface of the locking plate.

[0011] Preferably, the lower side surface of the locking plate slides through the lower surface of the limiting protrusion.

[0012] Preferably, a second movement cavity is opened inside the left mounting plate, and a reset rod is fixedly connected to the lower surface of the lifting plate.

[0013] Preferably, the lower end of the reset rod slides through the interior of the second motion cavity, the outer surface of the reset rod is sleeved with a second spring, and the upper end of the second spring is fixedly connected to the inner wall of the second motion cavity.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The radial extrusion device for metal pipes, when fixing the metal pipes, sleeves the pipes on the outer surface of the second round rod, then unlocks the connecting rod through the locking assembly, and uses the locking assembly to drive the connecting rod to rotate. When the connecting rod rotates, it simultaneously drives the push rod to rotate, and when the push rod rotates, it drives the threaded rod to rotate. Since the movement trajectory of the threaded sleeve is restricted by the connecting plate and the sliding groove, when the threaded rod rotates, it will simultaneously drive the threaded sleeve to move horizontally, and then use the connecting plate to cooperate with subsequent components to support the inner wall of the pipe. Through the above structure, it can make it more convenient to fix the pipe. There is no need to apply continuous force to the turntable to prevent it from loosening and causing the fixing structure to be unstable, as in the traditional structure, which reduces the difficulty of fixing the pipe.

[0016] (2) The radial extrusion device for metal pipes pulls up the lifting plate. When the lifting plate moves, the reset rod will be used to compress the second spring, and the locking plate will be driven to move. After the locking plate moves, it will disengage from the slot and then push the mounting plate to move. After moving to the designated location, the lifting plate is released and the locking plate can be re-entered into the slot under the action of the second spring, thereby completing the locking of the position. The above structure can make it easier to adjust the distance between the two mounting plates, and there is no travel limit of the hydraulic rod, making the radial extrusion device more widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic structural diagram of a radial extrusion device for metal pipes according to the utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of a round rod of the utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the installation plate of the utility model;

[0021] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure numerals: 1. base; 2. mounting plate; 3. round rod; 4. second round rod; 5. cavity; 6. threaded rod; 7. threaded sleeve; 8. connecting plate; 9. groove; 10. sliding groove; 11. push rod; 12. connecting rod; 13. knob; 14. protrusion; 15. second groove; 16. motion cavity; 17. ring; 18. spring; 19. rear support rod; 20. front support rod; 21. second sliding groove; 22. limiting sliding rod; 23. slot; 24. limiting protrusion; 25. lifting plate; 26. locking plate; 27. second motion cavity; 28. reset rod; 29. ​​second spring. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a radial extrusion device for metal pipes, including a base 1, a mounting plate 2 is fixedly connected to the upper surface of the base 1, a round rod 3 is arranged on the mounting plate 2, the right end of the round rod 3 rotates and penetrates the right side surface of the mounting plate 2, the left end of the round rod 3 is fixedly connected to a second round rod 4, the second round rod 4 and the round rod 3 are both provided with cavities 5, the interiors of the two cavities 5 are communicated, a threaded rod 6 is rotatably connected to the inner wall of the left side of the cavity 5, a threaded sleeve 7 is provided on the outer surface of the threaded rod 6, a connecting plate 8 is fixedly connected to the outer surface of the threaded sleeve 7, a groove 9 is provided on the outer surface of the second round rod 4, a sliding groove 10 extending into the interior of the cavity 5 is provided on the bottom wall of the groove 9, a push rod 11 is fixedly connected to the right end of the threaded rod 6, a connecting rod 12 is provided on the inner sliding sleeve of the push rod 11, and the right end of the connecting rod 12 movably penetrates the right side of the round rod 3. At the end, a locking assembly is provided on the connecting rod 12. When fixing the metal pipe, the pipe is sleeved on the outer surface of the second round rod 4, and then the connecting rod 12 is unlocked by the locking assembly, and the locking assembly is used to drive the connecting rod 12 to rotate. When the connecting rod 12 rotates, the push rod 11 is simultaneously driven to rotate, and after the push rod 11 rotates, the threaded rod 6 is driven to rotate. Since the movement trajectory of the threaded sleeve 7 is restricted by the connecting plate 8 and the sliding groove 10, the threaded sleeve 7 is synchronously driven to move horizontally when the threaded rod 6 rotates, and then the connecting plate 8 is used to cooperate with subsequent components to support the inner wall of the pipe. Through the above structure, it can make it more convenient to fix the pipe. There is no need to apply continuous force to the turntable like the traditional structure to avoid loosening and causing the fixing structure to be unstable, which reduces the difficulty of fixing the pipe.

[0025] Furthermore, the locking assembly includes a knob 13, which is fixedly connected to the right end of the connecting rod 12, a protrusion 14 is fixedly connected to the left surface of the knob 13, a second groove 15 adapted to the protrusion 14 is provided at the right end of the round rod 3, a movement cavity 16 is provided inside the round rod 3, a ring 17 is rotatably sleeved on the outer surface of the connecting rod 12, a spring 18 is fixedly connected to the right surface of the ring 17, the right end of the spring 18 is fixedly connected to the inner wall of the movement cavity 16, a rear support rod 19 is rotatably connected to the inner wall of the groove 9, a front support rod 20 is provided inside the groove 9, the right end of the front support rod 20 is rotatably connected to the front end of the rear support rod 19, and a side surface of the connecting plate 8 away from the threaded sleeve 7 is rotatably connected to the front support rod 20 The upper surface of the base 1 is connected, and two second sliding grooves 21 are provided, and the inner walls of the two second sliding grooves 21 are respectively fixedly connected to the limited sliding rods 22, and the outer surfaces of the two limited sliding rods 22 are respectively provided with card grooves 23. The base 1 is also provided with a mounting plate 2, and the outer surface of the limited sliding rod 22 is slidably sleeved with a limiting protrusion 24, and the upper side surface of the limiting protrusion 24 is fixedly connected to the lower surface of the mounting plate 2, and a lifting plate 25 is provided on the upper surface of the left mounting plate 2, and a locking plate 26 is fixedly connected to the lower surface of the lifting plate 25, and an arc groove is provided on the lower side surface of the locking plate 26, and the lower side surface of the locking plate 26 slides through the lower surface of the limiting protrusion 24, and the inside of the left mounting plate 2 is provided with a second sliding groove. The lower surface of the lifting plate 25 is fixedly connected with a reset rod 28, and the lower end of the reset rod 28 slides into the second movement cavity 27. The outer surface of the reset rod 28 is sleeved with a second spring 29, and the upper end of the second spring 29 is fixedly connected to the inner wall of the second movement cavity 27. By pulling the knob 13 to move, the knob 13 moves so that the protrusion 14 is disengaged from the second groove 15 to complete the unlocking of the knob 13. When the knob 13 moves, the ring 17 is used to compress the spring 18, and then the knob 13 is used to drive the connecting rod 12 to rotate, and then the connecting rod 12 is used to drive the connecting plate 8 to move. After the fixing is completed, the knob 13 is released to allow the protrusion 14 to re-enter the second groove 15. The knob 13 is then locked. At the same time, when controlling the distance between the two mounting plates 2, by pulling up the lifting plate 25, the reset rod 28 will be used to compress the second spring 29 when the lifting plate 25 moves, and the locking plate 26 will be driven to move. After the locking plate 26 moves, it will disengage from the slot 23, and then push the mounting plate 2 to move. After moving to the designated location, the lifting plate 25 is released, and the locking plate 26 can re-enter the slot 23 under the action of the second spring 29, thereby completing the locking of the position. Through the above structure, it is also convenient to adjust the distance between the two mounting plates 2, and there is no stroke limit of the hydraulic rod, which makes the radial extrusion device more widely applicable.

[0026] Working principle: When fixing the metal pipe, the pipe is sleeved on the outer surface of the second round rod 4, and then the connecting rod 12 is unlocked through the locking component, and the locking component is used to drive the connecting rod 12 to rotate. When the connecting rod 12 rotates, it simultaneously drives the push rod 11 to rotate, and after the push rod 11 rotates, it drives the threaded rod 6 to rotate. Since the threaded sleeve 7 is restricted by the connecting plate 8 and the sliding groove 10, the threaded sleeve 7 will be synchronously driven to move horizontally when the threaded rod 6 rotates, and then the connecting plate 8 is used to cooperate with the subsequent components to support the inner wall of the pipe, and the knob 13 is pulled to move. After the knob 13 moves, the protrusion 14 is disengaged from the second groove 15 to complete the unlocking of the knob 13. When the knob 13 moves, the ring 1 7 compresses the spring 18, and then uses the knob 13 to drive the connecting rod 12 to rotate, and then uses the connecting rod 12 to drive the connecting plate 8 to move. After the fixation is completed, the knob 13 can be released to allow the protrusion 14 to re-enter the interior of the second groove 15, thereby completing the locking of the knob 13. At the same time, when controlling the distance between the two mounting plates 2, by pulling up the lifting plate 25, when the lifting plate 25 moves, the second spring 29 will be synchronously compressed by the reset rod 28, and the locking plate 26 will be driven to move. After the locking plate 26 moves, it will disengage from the slot 23, and then push the mounting plate 2 to move. After moving to the designated location, release the lifting plate 25, and the locking plate 26 can be re-entered into the interior of the slot 23 under the action of the second spring 29, thereby completing the locking of the position.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A radial extrusion device for metal pipes, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a mounting plate (2), a round rod (3) is arranged on the mounting plate (2), the right end of the round rod (3) is rotatably passed through the right side surface of the mounting plate (2), the left end of the round rod (3) is fixedly connected to a second round rod (4), the second round rod (4) and the round rod (3) are both provided with cavities (5), the interiors of the two cavities (5) are communicated, a threaded rod (6) is rotatably connected to the left inner wall of the cavity (5), and the outer surface of the threaded rod (6) is provided with a threaded sleeve A threaded sleeve (7) is provided, and a connecting plate (8) is fixedly connected to the outer surface of the threaded sleeve (7). A groove (9) is provided on the outer surface of the second round rod (4). A sliding groove (10) extending into the interior of the cavity (5) is provided on the bottom wall of the groove (9). The right end of the threaded rod (6) is fixedly connected to a push rod (11). The internal sliding sleeve of the push rod (11) is provided with a connecting rod (12). The right end of the connecting rod (12) is movable and passes through the right end of the round rod (3). A locking assembly is provided on the connecting rod (12).

2. The radial extrusion device for metal pipes according to claim 1, characterized in that: The locking assembly comprises a knob (13), which is fixedly connected to the right end of the connecting rod (12), a protrusion (14) is fixedly connected to the left surface of the knob (13), a second groove (15) matched with the protrusion (14) is provided at the right end of the round rod (3), a movement cavity (16) is provided inside the round rod (3), a circular ring (17) is rotatably sleeved on the outer surface of the connecting rod (12), a spring (18) is fixedly connected to the right surface of the circular ring (17), the right end of the spring (18) is fixedly connected to the inner wall of the movement cavity (16), a rear support rod (19) is rotatably connected to the inner wall of the groove (9), a front support rod (20) is arranged inside the groove (9), the right end of the front support rod (20) is rotatably connected to the front end of the rear support rod (19), and a side surface of the connecting plate (8) away from the threaded sleeve (7) is rotatably connected to the front support rod (20).

3. The radial extrusion device for metal pipes according to claim 1, characterized in that: The upper surface of the base (1) is provided with two second sliding grooves (21), the inner walls of the two second sliding grooves (21) are respectively fixedly connected to limit sliding rods (22), and the outer surfaces of the two limit sliding rods (22) are respectively provided with clamping grooves (23).

4. The radial extrusion device for metal pipes according to claim 3, characterized in that: The base (1) is also provided with a mounting plate (2), and the outer surface sliding sleeve of the limiting slide rod (22) is provided with a limiting protrusion (24), and the upper side surface of the limiting protrusion (24) is fixedly connected to the lower surface of the mounting plate (2).

5. The radial extrusion device for metal pipes according to claim 4, characterized in that: A lifting plate (25) is provided on the upper surface of the left mounting plate (2), a locking plate (26) is fixedly connected to the lower surface of the lifting plate (25), and an arc groove is provided on the lower side surface of the locking plate (26).

6. The radial extrusion device for metal pipes according to claim 5, characterized in that: The lower side surface of the locking plate (26) slides through the lower surface of the limiting protrusion (24).

7. The radial extrusion device for metal pipes according to claim 5, characterized in that: A second movement cavity (27) is provided inside the left mounting plate (2), and a reset rod (28) is fixedly connected to the lower surface of the lifting plate (25).

8. The radial extrusion device for metal pipes according to claim 7, characterized in that: The lower end of the reset rod (28) slides into the interior of the second movement chamber (27), the outer surface of the reset rod (28) is sleeved with a second spring (29), and the upper end of the second spring (29) is fixedly connected to the inner wall of the second movement chamber (27).

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