Length-accurate cutting device for hot-rolled seamless steel pipes
Patent Information
- Application Number
- CN202522194898.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0005]为了弥补以上不足，本实用新型提供了热轧无缝钢管长度精确切割装置，旨在改善在对钢管切割位置进行控制时，通常凭借着工作人员的主观判断来决定，容易导致切割长度较长或较短的问题
1、本实用新型中，通过挡板和防护垫一对钢管一端均阻挡，同时通过卡柱与长度板内部相卡合，对防护垫一位置进行固定，达到了对钢管切割长度进行精准控制的效果，解决了在对钢管切割位置进行控制时，通常凭借着工作人员的主观判断来决定，容易导致切割长度较长或较短的问题，增强了钢管切割的精准性。
Smart Images
Figure CN224879463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe cutting equipment, and in particular to a device for precise length cutting of hot-rolled seamless steel pipes. Background Technology
[0002] Hot-rolled seamless steel pipes are widely used in construction, machinery manufacturing, petrochemical and other fields. Their cutting accuracy directly affects subsequent processing and performance. Therefore, the development of efficient and precise hot-rolled seamless steel pipe cutting equipment has become a key industry requirement to meet the ever-increasing standards for high-quality pipe processing.
[0003] In existing hot-rolled seamless steel pipe cutting technologies, automated cutting machines are mostly used for pipe cutting operations. These machines mainly consist of a feeding mechanism, cutting blades, a drive system, and simple positioning components. The feeding mechanism transports the steel pipe via roller conveyors, while the cutting blades rotate at high speed or reciprocate under motor drive. The positioning components use limit blocks and other structures to initially position the steel pipe. Once the steel pipe reaches the limit block, the cutting blades initiate the cutting process.
[0004] However, existing hot-rolled seamless steel pipe cutting devices generally rely on the operator's experience to judge the cutting timing when controlling the cutting position. This method is essentially based on subjective judgment and lacks precise quantitative control methods, which can easily lead to deviations in the cutting length of the steel pipe. The length of the cut steel pipe may be too long or too short, making it difficult to meet the requirements of high-precision processing. This not only wastes materials but also increases subsequent rework costs, affecting production efficiency and product quality. Therefore, a precise cutting device for the length of hot-rolled seamless steel pipes is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a precise cutting device for hot-rolled seamless steel pipes, which aims to improve the problem that the cutting position of steel pipes is usually determined by the subjective judgment of the operator, which can easily lead to the cutting length being too long or too short.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A precision cutting device for hot-rolled seamless steel pipes includes a base, a cutting machine fixedly connected to the top of the base, and a positioning component on one side of the cutting machine. The positioning component includes a baffle located on one side of the cutting machine. A fixing block is fixedly connected to the top of the base. A length plate is slidably connected inside the fixing block. One side of the length plate is fixedly connected to the outer wall of the baffle. A protective pad is fixedly connected to one side of the baffle. Multiple fixing shells are fixedly connected to one side of the fixing block. Each fixing shell has a locking pin slidably connected inside. One end of each locking pin passes through the fixing block and engages with the inside of the length plate. A fixing block is fixedly connected to the bottom of the inner wall of each fixing shell. Each fixing block has a locking groove inside. A locking strip is fixedly connected inside each locking pin. A reset component is provided on the outer wall of each locking pin.
[0007] As a further description of the above technical solution: Each of the reset components includes a spring, each spring is located on the outer wall of the locking post, one end of each spring is fixedly connected to one side of the inner wall of the fixing housing, and the other end of each spring is in contact with the locking strip.
[0008] As a further description of the above technical solution: Each of the card posts is fixedly connected to a handle at the other end, and a clamping assembly is provided on the top of the base.
[0009] As a further description of the above technical solution: The clamping assembly includes multiple arc-shaped clamps located on the top of the base. Each arc-shaped clamp has a protective pad II fixedly connected to its inner wall. Each arc-shaped clamp has a connecting block II fixedly connected to both sides. Each connecting block II on each side has a rotating bar fixedly connected inside. Each rotating bar has a connecting block I rotatably connected to its outer wall. The outer wall of one connecting block I on one side is fixedly connected to one side of the inner wall of the fixed frame, and the outer wall of the other connecting block I on the other side is fixedly connected to a connecting plate.
[0010] As a further description of the above technical solution: A fixing frame is fixedly connected to the top of the base, and a threaded rod is threadedly connected inside the fixing frame.
[0011] As a further description of the above technical solution: One end of the threaded rod is fixedly connected to a handle, and the other end of the threaded rod passes through the fixing frame and is fixedly connected to a connecting column.
[0012] As a further description of the above technical solution: A limiting ring is fixedly connected to the outer wall of the connecting column, and a connecting ring is rotatably connected to the outer wall of the limiting ring.
[0013] As a further description of the above technical solution: One side of the connecting ring is fixedly connected to the outer wall of the connecting plate, and a slider is fixedly connected to the bottom of the connecting plate. The slider is slidably connected to the inner wall of the fixing frame.
[0014] This utility model has the following beneficial effects: 1. In this utility model, both ends of the steel pipe are blocked by the baffle and the protective pad. At the same time, the protective pad is fixed in one position by the locking post engaging with the inside of the length plate. This achieves the effect of precise control of the cutting length of the steel pipe, which solves the problem that the cutting position of the steel pipe is usually determined by the subjective judgment of the workers, which can easily lead to the cutting length being too long or too short. This enhances the accuracy of steel pipe cutting.
[0015] 2. In this utility model, by rotating the handle two, the protective pads on both sides are pressed and fixed to the surface of the steel pipe. At the same time, the protective pads two rotate around the rotating bar to adapt to steel pipes with different center points, achieving a good fixing effect on the steel pipe. This solves the problem that the fixing parts in traditional equipment are generally flat and only point-connected to the surface of the steel pipe, resulting in a relatively narrow clamping range. This can easily cause the steel pipe to vibrate during the cutting process, affecting the cutting accuracy of the steel pipe. This enhances the stability of the equipment in clamping the steel pipe. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the precise length cutting device for hot-rolled seamless steel pipes proposed in this utility model. Figure 2 This is a schematic diagram of the baffle structure of the hot-rolled seamless steel pipe length precision cutting device proposed in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed shell of the hot-rolled seamless steel pipe length precision cutting device proposed in this utility model; Figure 4 This is a schematic diagram of the arc-shaped clamping plate structure of the hot-rolled seamless steel pipe length precision cutting device proposed in this utility model; Figure 5 This is a schematic diagram of the limiting ring structure of the hot-rolled seamless steel pipe length precision cutting device proposed in this utility model.
[0017] Legend: 1. Base; 2. Cutting machine; 3. Fixing block one; 4. Length plate; 5. Baffle; 6. Protective pad one; 7. Fixing shell; 8. Clamping post; 9. Clamping strip; 10. Spring; 11. Fixing block two; 12. Clamping groove; 13. Handle one; 14. Fixing frame; 15. Threaded rod; 16. Handle two; 17. Connecting block one; 18. Rotating bar; 19. Connecting block two; 20. Arc-shaped clamping plate; 21. Protective pad two; 22. Connecting post; 23. Connecting ring; 24. Connecting plate; 25. Limiting ring; 26. Slider. 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] Reference Figures 1-3 An embodiment of this utility model provides a hot-rolled seamless steel pipe length precision cutting device, including a base 1, a cutting machine 2 fixedly connected to the top of the base 1, and a positioning component provided on one side of the cutting machine 2; The positioning assembly includes a baffle 5, which blocks the end of the steel pipe and controls the cutting length. The baffle 5 is located on one side of the cutting machine 2. A fixing block 3 is fixedly connected to the top of the base 1. The fixing block 3 supports and guides the length plate 4. The length plate 4 is slidably connected inside the fixing block 3. The length plate 4 is used to adjust the position of the baffle 5. One side of the length plate 4 is fixedly connected to the outer wall of the baffle 5. A protective pad 6 is fixedly connected to one side of the baffle 5. The protective pad 6 is used to buffer the impact of the steel pipe. Multiple fixing shells 7 are fixedly connected to one side of the fixing block 3. The fixing shells 7 are used to install the positioning mechanism. Each fixing shell 7 has a locking pin 8 slidably connected inside. The locking pin 8 is used to lock the position of the length plate 4. One end of each locking pin 8 passes through the fixing block 3 and engages with the inside of the length plate 4. Each inner wall bottom is fixedly connected to a fixing block 2 11, which is used to fix the card slot 12. Each fixing block 2 11 has a card slot 12 inside, which is used to lock with the card strip 9. Each card post 8 has a card strip 9 fixedly connected inside, which is used to transmit elastic force and realize rotation locking. Each card post 8 has a reset component on its outer wall. Each reset component includes a spring 10, which is used to provide reset elastic force. Each spring 10 is located on the outer wall of the card post 8. One end of each spring 10 is fixedly connected to one side of the inner wall of the fixing shell 7. The other end of each spring 10 is in contact with the card strip 9. Each card post 8 has a handle 13 fixedly connected to its other end, which is used to manually operate the card post 8. The top of the base 1 is provided with a clamping component.
[0020] Reference Figure 1 , Figure 4 and Figure 5The clamping assembly includes multiple arc-shaped clamping plates 20, which are used to adapt to the curved surface of the steel pipe. These arc-shaped clamping plates 20 are located on the top of the base 1. Each arc-shaped clamping plate 20 has a protective pad 21 fixedly connected to its inner wall to protect the surface of the steel pipe. Each arc-shaped clamping plate 20 has connecting blocks 29 fixedly connected to both sides to connect rotating bars 18. Each connecting block 29 has a rotating bar 18 fixedly connected inside it, allowing for the rotational adjustment of the arc-shaped clamping plate 20. Each rotating bar 18 has a connecting block 17 rotatably connected to its outer wall, connecting the rotating bar 18 to the fixing frame 14. One side of the connecting block 17 is fixedly connected to one side of the inner wall of the fixing frame 14, while the other side has a connecting plate 24 fixedly connected to its outer wall, transmitting clamping force. A fixed plate is also fixedly connected to the top of the base 1. The fixed frame 14 supports the clamping mechanism. A threaded rod 15 is threadedly connected inside the fixed frame 14. The threaded rod 15 is used to generate clamping displacement. A handle 16 is fixedly connected to one end of the threaded rod 15. The handle 16 is used to manually rotate the threaded rod 15. The other end of the threaded rod 15 passes through the fixed frame 14 and is fixedly connected to a connecting post 22. The connecting post 22 is used to connect the threaded rod 15 and the connecting ring 23. A limit ring 25 is fixedly connected to the outer wall of the connecting post 22. The limit ring 25 is used to limit the rotation of the connecting ring 23. The connecting ring 23 is rotatably connected to the outer wall of the limit ring 25. The connecting ring 23 is used to convert rotational motion into linear motion. One side of the connecting ring 23 is fixedly connected to the outer wall of the connecting plate 24. A slider 26 is fixedly connected to the bottom of the connecting plate 24. The slider 26 is used to guide the movement of the connecting plate 24. The slider 26 is slidably connected to the inner wall of the fixed frame 14.
[0021] Working principle: In the process of controlling the cutting length of the steel pipe, firstly, pull handle 13 to push one end of the locking pin 8 out of the length plate 4. As the locking pin 8 moves, it will compress the spring 10 through the locking strip 9. When the locking strip 9 moves to the side of the fixing block 11, rotate handle 13 90 degrees to make the locking strip 9 also rotate accordingly. Since the locking strip 9 is in contact with one end of the spring 10, the rotational force of the locking strip 9 will not affect the spring 10. Next, release the pulling force on handle 13, and use the rebound force of the spring 10 to push the locking strip 9 into the inner wall of the slot 12, thereby fixing the position of the locking pin 8. Then, push the length plate 4 to slide inside the fixed block 3 until the protective pad 6 on one side of the baffle 5 is moved to the appropriate position. Then, according to the same principle as above, make the locking post 8 engage with the inside of the length plate 4 to fix the position of the protective pad 6. By blocking one end of the steel pipe with the protective pad 6, it is ensured that the surface position of the steel pipe is accurately at the bottom of the cutting tool on the surface of the cutting machine 2. This achieves the effect of precise control of the cutting length of the steel pipe, which solves the problem that the cutting position of the steel pipe is usually determined by the subjective judgment of the operator, which can easily lead to the cutting length being too long or too short. This enhances the accuracy of steel pipe cutting. During the process of fixing the position of the steel pipe, rotating the handle 16 causes the connecting post 22 at one end of the threaded rod 15 to move while rotating because the threaded rod 15 is connected to the fixing frame 14 by a thread. Since the limiting ring 25 on the outer wall of the connecting post 22 is rotatably connected to the connecting ring 23, the rotational force of the connecting post 22 will not affect the connecting ring 23, but will only push the connecting ring 23 to move. The movement of the connecting ring 23 will also push the connecting plate 24 and the slider 26 to move accordingly. The slider 26 slides inside the fixing frame 14 to move the connecting plate 24. The movement direction is limited until the protective pads 21 on both sides clamp and fix the steel pipe surface. When the center point of the steel pipe is not on the same horizontal plane as the protective pad 21, the arc-shaped clamping plate 20 on the outer wall of the protective pad 21 will rotate around the rotating bar 18 as the center, ensuring that the protective pad 21 can fully fit the steel pipe surface, achieving a good fixing effect on the steel pipe. This solves the problem that the fixing parts in traditional equipment are usually flat and have a point connection with the steel pipe surface, resulting in a relatively narrow clamping range, which easily causes the steel pipe to vibrate during the cutting process and affects the cutting accuracy of the steel pipe. This enhances the stability of the equipment in clamping the steel pipe.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A precision cutting device for hot-rolled seamless steel pipes, comprising a base (1), characterized in that: A cutting machine (2) is fixedly connected to the top of the base (1), and a positioning component is provided on one side of the cutting machine (2); The positioning component includes a baffle (5), which is located on one side of the cutting machine (2). A fixing block (3) is fixedly connected to the top of the base (1). A length plate (4) is slidably connected inside the fixing block (3). One side of the length plate (4) is fixedly connected to the outer wall of the baffle (5). A protective pad (6) is fixedly connected to one side of the baffle (5). Multiple fixing shells (7) are fixedly connected to one side of the fixing block (3). Each fixing shell (7) has a locking post (8) slidably connected inside. One end of each locking post (8) passes through the fixing block (3) and engages with the inside of the length plate (4). A fixing block (11) is fixedly connected to the bottom of the inner wall of each fixing shell (7). A slot (12) is opened inside each fixing block (11). A locking strip (9) is fixedly connected inside each locking post (8). A reset component is provided on the outer wall of each locking post (8).
2. The precision length cutting device for hot-rolled seamless steel pipes according to claim 1, characterized in that: Each of the reset components includes a spring (10), each spring (10) is located on the outer wall of the locking post (8), one end of each spring (10) is fixedly connected to one side of the inner wall of the fixing shell (7), and the other end of each spring (10) is in contact with the locking strip (9).
3. The precision length cutting device for hot-rolled seamless steel pipes according to claim 1, characterized in that: Each of the card posts (8) is fixedly connected to a handle (13) at the other end, and a clamping assembly is provided on the top of the base (1).
4. The precision length cutting device for hot-rolled seamless steel pipes according to claim 3, characterized in that: The base (1) is fixedly connected to a fixed frame (14) at the top, and the fixed frame (14) is internally threaded with a threaded rod (15).
5. The precision length cutting device for hot-rolled seamless steel pipes according to claim 4, characterized in that: The clamping assembly includes multiple arc-shaped clamps (20), which are located on the top of the base (1). Each arc-shaped clamp (20) has a protective pad (21) fixedly connected to its inner wall. Each arc-shaped clamp (20) has a connecting block (19) fixedly connected to both sides. Each connecting block (19) has a rotating bar (18) fixedly connected inside. Each rotating bar (18) has a connecting block (17) rotatably connected to its outer wall. The outer wall of one connecting block (17) is fixedly connected to one side of the inner wall of the fixing frame (14), and the outer wall of the other connecting block (17) is fixedly connected to a connecting plate (24).
6. The precision length cutting device for hot-rolled seamless steel pipes according to claim 5, characterized in that: One end of the threaded rod (15) is fixedly connected to a handle (16), and the other end of the threaded rod (15) passes through the fixing frame (14) and is fixedly connected to a connecting column (22).
7. The precision length cutting device for hot-rolled seamless steel pipes according to claim 6, characterized in that: The outer wall of the connecting column (22) is fixedly connected to a limiting ring (25), and the outer wall of the limiting ring (25) is rotatably connected to a connecting ring (23).
8. The precision length cutting device for hot-rolled seamless steel pipes according to claim 7, characterized in that: The connecting ring (23) is fixedly connected to the outer wall of the connecting plate (24) on one side, and a slider (26) is fixedly connected to the bottom of the connecting plate (24). The slider (26) is slidably connected to the inner wall of the fixing frame (14).