Intelligent roundness correcting machine for thin-walled tube
By designing an intelligent rounding machine with replaceable rounding rollers and a limiting structure, the problem that existing equipment cannot adapt to thin-walled tubes of different sizes and materials has been solved, achieving flexible application and reduced damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN QUANGONG AUTOMATION TECH CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-04
AI Technical Summary
Existing straightening machines cannot flexibly adapt to thin-walled tubes of different sizes and materials, requiring frequent equipment changes, which leads to inconvenience in operation and may damage the tubes.
An intelligent rounding machine was designed. Through the interchangeable first rounding roller, third gear and third rounding roller, and limit structure, it can be applied to thin-walled tubes of different diameters and materials, and the roller design is optimized to reduce damage.
It enables the rounding of thin-walled tubes of different diameters and materials within a certain range, reducing the frequency of equipment replacement and damage to pipe fittings, and improving the flexibility and precision of operation.
Smart Images
Figure CN224586656U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roundness adjustment machine technology, and in particular to an intelligent roundness adjustment machine for thin-walled tubes. Background Technology
[0002] Thin-walled tubes are widely used in aerospace, automotive manufacturing, and medical device industries due to their light weight and high strength-to-weight ratio. These tubes are prone to plastic deformation such as ellipticing and denting during processing, transportation, or storage due to external forces, affecting subsequent assembly accuracy (such as the sealing fit with flanges and the welding quality with joints). Therefore, they need to be restored to their roundness using a rounding machine.
[0003] However, existing rounding machines still have certain drawbacks. For example, the rounding rollers of existing equipment are mostly rigidly connected to the main structure, which can only be adapted to thin-walled pipes of a single diameter. When processing pipes of different sizes, it is necessary to replace them with other models of equipment, which is quite inconvenient. Utility Model Content
[0004] The purpose of this invention is to provide an intelligent rounding machine for thin-walled tubes, which can replace the first rounding roller, the third gear and the third rounding roller of different sizes, so that the equipment can be used for thin-walled tubes of different diameters within a certain range. Moreover, the first rounding roller, the third gear and the third rounding roller of different materials can be replaced as needed, thereby optimizing the roller design according to the material characteristics and reducing damage to the tubes.
[0005] To achieve the above objectives, an intelligent rounding machine for thin-walled tubes is provided, comprising: An L-shaped mounting base has a controller fixedly connected to its front surface, a cylinder fixedly connected to its upper surface, a slide fixedly connected to the output end of the cylinder, a first drive shaft rotatably connected to the inner surface of the slide, a first rounding roller slidably connected to the outer surface of the first drive shaft, an L-shaped mounting plate fixedly connected to its right surface, a motor fixedly connected to the right surface of the L-shaped mounting plate, a rotating shaft fixedly connected to the output end of the motor, a first gear fixedly connected to the outer surface of the rotating shaft, a second drive shaft rotatably connected to the inner surface of the L-shaped mounting base, and a first gear fixedly connected to the outer surface of the second drive shaft. Two gears, a second rounding roller is slidably connected to the outer surface of the second drive shaft, a third drive shaft is rotatably connected to the inner surface of the L-shaped fixed seat, a third gear is fixedly connected to the outer surface of the third drive shaft, a third rounding roller is slidably connected to the inner surface of the third drive shaft, threaded rods are rotatably connected to the inner surfaces of the first drive shaft, a limit block is fixedly connected to the right end of the threaded rod, a limit block is slidably connected to the inner surface of the first drive shaft, an inclined block is fixedly connected to the left surface of the limit block, a second spring is fixedly connected to the outer surface of the inclined block, and an inclined frame is threadedly connected to the outer surface of the threaded rod.
[0006] The left end of the threaded rod is fixedly connected to a limit block, the outer surface of the threaded rod is provided with a first spring, the outer surface of the threaded rod is slidably connected to a hexagonal sleeve, and the right surface of the hexagonal sleeve is fixedly connected to a pin.
[0007] Furthermore, the outer surface of the inclined plane frame is slidably connected to the inclined plane block, and the end of the second spring away from the inclined plane block is fixedly connected to the first drive shaft.
[0008] Furthermore, the left ends of the first drive shaft, the second drive shaft, and the third drive shaft are all provided with slots, and the inner surface of the slots is adapted to the pin post.
[0009] Furthermore, the outer surface of the L-shaped fixing seat is provided with a limiting groove, and the inner surface of the limiting groove is adapted to the slide.
[0010] Furthermore, the left end of the first spring contacts the limiting block, and the right end of the first spring contacts the hexagonal sleeve.
[0011] Furthermore, the outer surfaces of the first drive shaft, the second drive shaft, and the third drive shaft are all fixedly connected with limit strips.
[0012] Furthermore, the controller is electrically connected to the cylinder, and the motor is electrically connected to an external power source.
[0013] Furthermore, the first gear meshes with the second gear, and the first gear meshes with the third gear.
[0014] The above-mentioned solution has at least the following beneficial effects: By incorporating structures such as threaded rods, limiting blocks, limiting blocks, inclined blocks, second springs, and inclined frames, the first rounding roller, third gear, and third rounding roller of different sizes can be replaced. This allows the equipment to be used with thin-walled tubes of different diameters within a certain range. Furthermore, the first rounding roller, third gear, and third rounding roller of different materials can be replaced as needed, thereby optimizing the roller design based on material characteristics to reduce damage to the tubes. In addition, by incorporating structures such as limiting blocks, first springs, hexagonal sleeves, pins, and slots, the threaded rod can be limited, thereby reducing the possibility of the rounding roller falling off due to the rotation of the threaded rod. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the overall structure of an intelligent rounding machine for thin-walled tubes according to the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the rear side of the overall structure of an intelligent rounding machine for thin-walled tubes according to the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 This is a cross-sectional view of the internal structure of an intelligent rounding machine for thin-walled tubes according to the present invention. Figure 6 for Figure 5 A magnified schematic diagram of the structure at point C.
[0016] Legend: The components are as follows: 1. L-shaped fixed base; 2. Controller; 3. Cylinder; 4. Slide; 5. First drive shaft; 6. First rounding roller; 7. L-shaped fixed plate; 8. Motor; 9. Rotating shaft; 10. First gear; 11. Second drive shaft; 12. Second gear; 13. Second rounding roller; 14. Third drive shaft; 15. Third gear; 16. Third rounding roller; 17. Threaded rod; 18. Limiting round block; 19. Limiting block; 20. Inclined block; 21. Limiting square block; 22. First spring; 23. Hexagonal sleeve; 24. Pin post; 25. Second spring; 26. Slot; 27. Limiting groove; 28. Inclined frame; 29. Limiting strip. Detailed Implementation
[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0018] Reference Figure 1-6 This utility model discloses an intelligent rounding machine for thin-walled tubes, comprising: an L-shaped fixed base 1, a controller 2 fixedly connected to the front surface of the L-shaped fixed base 1, a cylinder 3 fixedly connected to the upper surface of the L-shaped fixed base 1, a slide 4 fixedly connected to the output end of the cylinder 3, a first transmission shaft 5 rotatably connected to the inner surface of the slide 4, a first rounding roller 6 slidably connected to the outer surface of the first transmission shaft 5, an L-shaped fixed plate 7 fixedly connected to the right surface of the L-shaped fixed base 1, a motor 8 fixedly connected to the right surface of the L-shaped fixed plate 7, a rotating shaft 9 fixedly connected to the output end of the motor 8, and a first gear 10 fixedly connected to the outer surface of the rotating shaft 9. A second drive shaft 11 is rotatably connected to the inner surface of the L-shaped fixed base 1. A second gear 12 is fixedly connected to the outer surface of the second drive shaft 11. A second rounding roller 13 is slidably connected to the outer surface of the second drive shaft 11. A third drive shaft 14 is rotatably connected to the inner surface of the L-shaped fixed base 1. A third gear 15 is fixedly connected to the outer surface of the third drive shaft 14. A third rounding roller 16 is slidably connected to the inner surface of the third drive shaft 14. Threaded rods 17 are rotatably connected to the inner surfaces of the first drive shaft 5, the second drive shaft 11, and the third drive shaft 14. A limit block 18 is fixedly connected to the right end of the threaded rod 17. The inner surface of the first drive shaft 5 is slidably connected to the limit block 18. A limit block 19 is dynamically connected, and a slope block 20 is fixedly connected to the left surface of the limit block 19. A second spring 25 is fixedly connected to the outer surface of the slope block 20. A slope bracket 28 is threadedly connected to the outer surface of the threaded rod 17, and the outer surface of the slope bracket 28 is slidably connected to the slope block 20. The end of the second spring 25 away from the slope block 20 is fixedly connected to the first drive shaft 5. The left ends of the first drive shaft 5, the second drive shaft 11, and the third drive shaft 14 are all provided with slots 26. The inner surface of the slots 26 is adapted to the pin post 24 for limiting the threaded rod 17. The outer surface of the L-shaped fixing seat 1 is provided with a limit groove 27. The inner surface of 7 is adapted to the slide 4 to limit the movement of the slide 4. The outer surfaces of the first drive shaft 5, the second drive shaft 11, and the third drive shaft 14 are all fixedly connected to the limiting strip 29. The controller 2 is electrically connected to the cylinder 3. The controller 2 is a mature existing technology device. In this patent, the type of controller can be selected as needed. It is mainly used for intelligent control of the opening, closing and pressure of the cylinder 3. The control circuit can be implemented by simple programming by people in this field, so it will not be described in detail. The motor 8 is electrically connected to the external power supply. The first gear 10 meshes with the second gear 12 and the first gear 10 meshes with the third gear 15.
[0019] The left end of the threaded rod 17 is fixedly connected to a limiting block 21. A first spring 22 is provided on the outer surface of the threaded rod 17. A hexagonal sleeve 23 is slidably connected to the outer surface of the threaded rod 17. A pin 24 is fixedly connected to the right surface of the hexagonal sleeve 23. The left end of the first spring 22 is in contact with the limiting block 21, and the right end of the first spring 22 is in contact with the hexagonal sleeve 23.
[0020] Working principle: During operation, the thin-walled tube with a rounding tool is fitted onto the first rounding roller 6. Then, the controller 2 controls the cylinder 3 to start, which in turn drives the first rounding roller 6 downward through the slide 4. This causes the outer surface of the thin-walled tube to contact the second rounding roller 13 and the third rounding roller 16 respectively. Subsequently, the motor 8 is started, driving the rotating shaft 9 to rotate the second rounding roller 13 and the third rounding roller 16 under the meshing action of the first gear 10 and the second gear 12 and the first gear 10 and the third gear 15. Rotating in the same direction causes the thin-walled tube fitted onto the first rounding roller 6 to rotate, and performs a rounding operation on the thin-walled tube under the action of the first rounding roller 6, the second rounding roller 13, and the third rounding roller 16. When it is necessary to round thin-walled tubes of other sizes, simply pull the limiting block 21 to the left, causing the pin 24 to disengage from the slot 26 and compressing the first spring 22. Then rotate the hexagonal sleeve 23, and under the limiting action of the limiting block 21, drive the threaded rod 17 to rotate. The inclined frame 28 slides along the inclined surface of the inclined block 20, thereby causing the limiting block 19 to retract into the interior of the first drive shaft 5 under the rebound force of the second spring 25, which is in a compressed state, thus releasing the restriction on the first rounding roller 6. Then, the first rounding roller 6 can be directly removed along the first drive shaft 5 to complete the disassembly. Then, the first rounding roller 6 of all sizes and materials is sleeved on the first drive shaft 5, and the hexagonal sleeve 23 is rotated in the opposite direction to drive the inclined frame 28 to slide along the inclined surface of the inclined block 20, thereby causing the limiting block 19 to unfold outward and compressing the second spring 25, thus completing the limiting installation of the new first rounding roller 6. Similarly, the second rounding roller 13 and the third rounding roller 16 can be installed in the same way. After the installation is completed, the hexagonal sleeve 23 is loosened, and the pin post 24 is inserted into the slot 26 under the rebound force of the first spring 22, thereby limiting the rotation of the threaded rod 17 to reduce the possibility of the rounding roller falling off due to the rotation of the threaded rod 17.
[0021] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An intelligent rounding machine for thin-walled tubes, characterized in that, include: An L-shaped fixed base (1) is fixedly connected to a controller (2) on its front surface. A cylinder (3) is fixedly connected to the upper surface of the L-shaped fixed base (1). A slide (4) is fixedly connected to the output end of the cylinder (3). A first transmission shaft (5) is rotatably connected to the inner surface of the slide (4). A first rounding roller (6) is slidably connected to the outer surface of the first transmission shaft (5). An L-shaped fixed plate (7) is fixedly connected to the right surface of the L-shaped fixed base (1). A motor (8) is fixedly connected to the right surface of the L-shaped fixed plate (7). A rotating shaft (9) is fixedly connected to the output end of the motor (8). A first gear (10) is fixedly connected to the outer surface of the rotating shaft (9). A second transmission shaft (11) is rotatably connected to the inner surface of the L-shaped fixed base (1). A second gear (12) is fixedly connected to the outer surface of the second transmission shaft (11). The outer surface of the second drive shaft (11) is slidably connected to the second rounding roller (13), the inner surface of the L-shaped fixed seat (1) is rotatably connected to the third drive shaft (14), the outer surface of the third drive shaft (14) is fixedly connected to the third gear (15), the inner surface of the third drive shaft (14) is slidably connected to the third rounding roller (16), the inner surfaces of the first drive shaft (5), the second drive shaft (11) and the third drive shaft (14) are all rotatably connected to the threaded rod (17), the right end of the threaded rod (17) is fixedly connected to the limit block (18), the inner surface of the first drive shaft (5) is slidably connected to the limit block (19), the left surface of the limit block (19) is fixedly connected to the inclined block (20), the outer surface of the inclined block (20) is fixedly connected to the second spring (25), and the outer surface of the threaded rod (17) is threadedly connected to the inclined frame (28). The left end of the threaded rod (17) is fixedly connected to a limit block (21), the outer surface of the threaded rod (17) is provided with a first spring (22), the outer surface of the threaded rod (17) is slidably connected to a hexagonal sleeve (23), and the right surface of the hexagonal sleeve (23) is fixedly connected to a pin (24).
2. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The outer surface of the inclined plane frame (28) is slidably connected to the inclined plane block (20), and the end of the second spring (25) away from the inclined plane block (20) is fixedly connected to the first drive shaft (5).
3. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The left ends of the first drive shaft (5), the second drive shaft (11), and the third drive shaft (14) are all provided with slots (26), and the inner surface of the slots (26) is adapted to the pins (24).
4. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The outer surface of the L-shaped fixing seat (1) is provided with a limiting groove (27), and the inner surface of the limiting groove (27) is adapted to the slide (4).
5. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The left end of the first spring (22) is in contact with the limiting block (21), and the right end of the first spring (22) is in contact with the hexagonal sleeve (23).
6. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The outer surfaces of the first drive shaft (5), the second drive shaft (11), and the third drive shaft (14) are all fixedly connected with limit strips (29).
7. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The controller (2) is electrically connected to the cylinder (3), and the motor (8) is electrically connected to an external power source.
8. The intelligent rounding machine for thin-walled tubes according to claim 1, characterized in that, The first gear (10) meshes with the second gear (12), and the first gear (10) meshes with the third gear (15).