A precision turning device for the inner hole of a guide roller
By designing a precision turning device for the inner hole of the guide roller, and utilizing a rotating ring system driven by springs and motors, the problems of guide roller clamping deformation and alignment difficulties were solved, achieving efficient coaxiality assurance and improved processing efficiency.
Patent Information
- Application Number
- CN202611570766.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-10-12
- Publication Date
- 2026-11-06
AI Technical Summary
When a general-purpose lathe directly clamps and processes guide rollers, clamping deformation and alignment difficulties are likely to occur, making it difficult to ensure the coaxiality between the inner hole of the guide roller and the outer working surface of the roller, thus affecting the processing effect.
A precision turning device for the inner hole of a guide roller was designed. By setting up a T-shaped rod, a third spring, a second movable sleeve, a fixed sleeve, and an adjusting column, the spring force is used to achieve stable clamping and positioning of the guide roller. The rotating ring driven by the motor moves the mounting base and the movable sleeve to adapt to the turning of the inner hole of guide rollers of different specifications.
This eliminates the need to adjust the clamping mechanism when changing guide rollers of different specifications, improving machining efficiency and ensuring the coaxiality between the inner hole of the guide roller and the outer working surface of the roller body, thus avoiding affecting the machining effect.
Smart Images
Figure CN123039839A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of turning equipment technology, and more specifically, to a precision turning device for the inner hole of a guide roller. Background Technology
[0002] Guide rollers are core, easily damaged roller components in the rolling guide device on a steel rolling line. They are installed at the inlet and outlet of the rolling mill. They are passive rollers (without independent drive) and are driven to rotate by the friction of the high-temperature red-hot rolled workpieces (bars, wires, and small round steel). They can play a guiding and centering role as well as a protective clamping and limiting role, accurately feeding the red-hot steel into the roll pass, preventing the workpiece from deviating or twisting, restraining the lateral swing of the workpiece, and preventing steel from being thrown, wrapped, or overturned. The precision turning device for the inner hole of the guide roller is a special machining tool or special machine tool unit specifically designed for precision turning (precision boring) of the bearing mounting inner hole of the guide roller (roller (71) type roller sleeve workpiece) of rolling mill. Direct clamping and processing on a general-purpose lathe can easily lead to clamping deformation and difficulty in alignment. It is difficult to ensure the coaxiality between the inner hole of the guide roller and the outer working surface of the roller during the turning process, thus affecting the processing effect. Summary of the Invention
[0003] The purpose of this invention is to solve the problems that current general-purpose lathes often cause clamping deformation and alignment difficulties when directly clamping and machining, and it is difficult to ensure the coaxiality between the inner hole of the guide roller and the outer working surface of the roller during the turning process, thus affecting the machining effect.
[0004] To achieve the above-mentioned objectives and improve the above-mentioned problems, the present invention provides a precision turning device for the inner hole of a guide roller, comprising a lathe base, mounting grooves symmetrically opened on the upper surface of the lathe base, electric guide rails fixedly connected to the wall of the mounting grooves, a movable plate slidably connected to the surfaces of the two electric guide rails, and a turning mechanism disposed on the upper surface of the movable plate. A rectangular groove is opened in the middle of the upper surface of the lathe base, a rotating ring is rotatably connected to the wall of the rectangular groove, an annular rack is fixedly connected to the outer side of the rotating ring, a first gear is meshed on the surface of the annular rack, and a first motor is fixedly connected to the upper surface of the lathe base next to the rectangular groove, and the output end of the first motor is fixedly connected to the first gear. The rotating ring is fixedly connected to a mounting base that is evenly distributed in a ring. The mounting base has a circular hole on its surface. A first movable sleeve is slidably connected to the wall of the circular hole. A T-shaped post is slidably connected to the inner wall of the first movable sleeve. A first spring is fixedly connected to one end of the T-shaped post inside the first movable sleeve. The end of the first spring away from the T-shaped post is fixedly connected to the inner wall of the first movable sleeve. A second spring is fixedly connected between two first movable sleeves. Three arc-shaped plates are evenly distributed in a ring on the inner side of the rotating ring. The surfaces of the arc-shaped plates... A fixed rod is symmetrically fixedly connected to the fixed sleeve. A second movable sleeve is fitted onto the surface of the fixed rod. A fixed sleeve is symmetrically fixedly connected to the end of the second movable sleeve away from the arc-shaped plate. A T-shaped rod is slidably connected to the inner wall of the fixed sleeve away from the second movable sleeve. A third spring is fixedly connected to the end of the T-shaped rod inside the fixed sleeve. The end of the third spring away from the T-shaped rod is fixedly connected to the inner wall of the fixed sleeve. An adjusting column is fixedly connected to the surface of the second movable sleeve between the two fixed sleeves. A movable block is slidably connected to the end of the T-shaped rod away from the third spring. An adjusting rod is mounted on the outer surface of the first movable sleeve via a torsion spring. Trapezoidal grooves are symmetrically and equidistantly opened on the outer surface of the second movable sleeve. The end of the adjusting rod away from the first movable sleeve is fitted with the trapezoidal groove. The rectangular groove has two symmetrically formed arc-shaped grooves on its two side walls.
[0005] As a preferred technical solution of this application, the initial state of the first spring is a compressed state.
[0006] As a preferred technical solution of this application, the surface of the movable block is provided with a first inclined groove, and the end face of the adjusting column away from the second movable sleeve is symmetrically provided with a second inclined groove.
[0007] As a preferred technical solution of this application, the bottom of the rectangular groove wall is provided with symmetrical through holes.
[0008] As a preferred technical solution of this application, the rectangular groove wall is fixedly connected to a limiting plate next to the arc-shaped groove, the rotating ring surface is symmetrically fixedly connected to a limiting ring, and the multiple limiting plates are rotatably connected to the limiting ring.
[0009] As a preferred technical solution of this application, rollers are symmetrically installed on the outer side of the rotating ring next to the annular rack, and all four rollers are rotatably connected to the upper surface of the lathe base.
[0010] As a preferred technical solution of this application, the mounting base surface is fixedly connected to an arc-shaped block that is uniformly distributed in a ring on the outer side of the first movable sleeve.
[0011] As a preferred technical solution of this application, a ball bearing is fitted at the end of the T-shaped post away from the first spring.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. Through the T-shaped rods, third spring, second movable sleeve, fixed sleeve, and adjusting column, the two T-shaped rods can be adjusted and moved together with the second movable sleeve and fixed sleeve. The ends of the multiple T-shaped rods away from the third spring first contact the surface of the guide roller. Then, the T-shaped rods remain stationary, and relative movement occurs between the T-shaped rods and the fixed sleeve. The third spring is compressed, and the second inclined groove on the surface of the adjusting column also moves closer to the first inclined groove. Then, relative movement occurs between the first inclined groove and the second inclined groove. The two movable blocks are adjusted to move away from each other. The movable blocks are in close contact with the surface of the guide roller to be machined, and the guide roller to be machined is stably clamped and positioned. During the machining process, the coaxiality between the inner hole of the guide roller and the outer working surface of the roller body can be guaranteed, avoiding affecting the machining effect.
[0013] 2. By placing the guide roller to be machined at the center of the inner side of the rotating ring, the first motor is started, driving the first gear to rotate. The first gear meshes with the ring rack, thereby driving the rotating ring to rotate. The mounting base, the first movable sleeve, and the T-shaped column can all rotate relative to the arc groove. Since the arc groove wall is sloped, the first movable sleeve and the T-shaped column are adjusted to move in the direction of compressing the second spring. The adjusting rod cooperates with the trapezoidal groove, and the second movable sleeve is adjusted and moved. The second movable sleeve and the fixed rod move relative to each other. The second movable sleeve, the fixed sleeve, the T-shaped rod, and the movable block are all adjusted and moved, thereby clamping and positioning the guide roller. Utilizing the elastic force of the third spring, when changing guide rollers of different specifications for tight inner hole turning, there is no need to spend additional time adjusting the clamping mechanism, which can improve the turning efficiency of the guide roller. Attached Figure Description
[0014] Figure 1 This application provides an overall structural schematic diagram; Figure 2 This application provides a structural schematic diagram from another angle. Figure 3 Provided for this application Figure 2 Enlarged view at point A1; Figure 4 Provided for this application Figure 2 Enlarged view at point A2; Figure 5 This is a partial structural diagram of the rotating ring provided in this application; Figure 6 A partial structural diagram of the rectangular groove and the arc groove provided in this application.
[0015] The image shows: 1. Lathe base; 2. Mounting slot; 3. Electric guide rail; 4. Movable plate; 5. Turning mechanism; 6. Rectangular slot; 61. Through hole; 62. Limiting plate; 63. Limiting ring; 7. Rotating ring; 71. Roller; 8. Ring rack; 9. First gear; 10. First motor; 11. Mounting base; 111. Arc block; 12. Round hole; 13. First movable sleeve; 14. T-shaped column; 141. Ball bearing; 15. First spring; 16. Second spring; 17. Arc plate; 18. Fixed rod; 19. Second movable sleeve; 20. Fixed sleeve; 21. T-shaped rod; 22. Third spring; 23. Adjusting column; 231. Second inclined groove; 24. Movable block; 241. First inclined groove; 25. Adjusting rod; 26. Trapezoidal groove; 27. Arc groove. Detailed Implementation
[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0017] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0018] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0020] Please refer to Figures 1-6 A precision turning device for the inner hole of a guide roller includes a lathe base 1, mounting grooves 2 symmetrically opened on the upper surface of the lathe base 1, electric guide rails 3 fixedly connected to the groove wall of the mounting groove 2, movable plates 4 slidably connected to the surfaces of the two electric guide rails 3, and a turning mechanism 5 disposed on the upper surface of the movable plate 4. A rectangular groove 6 is opened in the middle of the upper surface of the lathe base 1. A rotating ring 7 is rotatably connected to the groove wall of the rectangular groove 6. A ring rack 8 is fixedly connected to the outer side of the rotating ring 7. A first gear 9 is meshed on the surface of the ring rack 8. A first motor 10 is fixedly connected to the upper surface of the lathe base 1 next to the rectangular groove 6. The output end of the first motor 10 is fixedly connected to the first gear 9. A mounting base 11, evenly distributed in a ring, is fixedly connected to the inner side of the rotating ring 7. A circular hole 12 is formed on the surface of the mounting base 11. A first movable sleeve 13 is slidably connected to the wall of the circular hole 12. A T-shaped post 14 is slidably connected to the inner wall of the first movable sleeve 13. A first spring 15 is fixedly connected to one end of the T-shaped post 14 inside the first movable sleeve 13. The end of the first spring 15 away from the T-shaped post 14 is fixedly connected to the inner wall of the first movable sleeve 13. A second spring 16 is fixedly connected between two first movable sleeves 13. Three arc-shaped plates 17, evenly distributed in a ring, are provided inside the rotating ring 7. The surfaces of the arc-shaped plates 17 are symmetrically fixedly connected... A fixed rod 18 is attached, and a second movable sleeve 19 is fitted onto the surface of the fixed rod 18. A fixed sleeve 20 is symmetrically fixed to the end of the second movable sleeve 19 away from the arc plate 17. A T-shaped rod 21 is slidably connected to the inner wall of the fixed sleeve 20 away from the second movable sleeve 19. A third spring 22 is fixedly connected to the end of the surface of the T-shaped rod 21 inside the fixed sleeve 20. The end of the third spring 22 away from the T-shaped rod 21 is fixedly connected to the inner wall of the fixed sleeve 20. An adjusting column 23 is fixedly connected to the surface of the second movable sleeve 19 between the two fixed sleeves 20. A movable block 24 is slidably connected to the end of the T-shaped rod 21 away from the third spring 22. An adjusting rod 25 is mounted on the outer surface of the first movable sleeve 13 via a torsion spring. Trapezoidal grooves 26 are symmetrically and equidistantly opened on the outer surface of the second movable sleeve 19. The end of the adjusting rod 25 away from the first movable sleeve 13 is fitted with the trapezoidal groove 26. The rectangular groove 6 has two symmetrically formed arc grooves 27 on its two side walls; It should be noted that during overall operation, the guide roller to be machined is placed at the center of the inner side of the rotating ring 7. The first motor 10 is started, driving the first gear 9 to rotate. The first gear 9 meshes with the ring rack 8, and the ring rack 8 is fixedly connected to the rotating ring 7. The rotating ring 7 rotates together with the ring rack 8. The mounting base 11 is fixedly connected to the rotating ring 7. The T-shaped columns 14 can all rotate relative to the arc groove 27. Since the wall of the arc groove 27 is sloped, the first movable sleeve 13 and the T-shaped columns 14 are both adjusted towards the compression of the second... When the spring 16 moves in a certain direction, the adjusting rod 25 engages with the trapezoidal groove 26, and the second movable sleeve 19 is adjusted and moved. The second movable sleeve 19 and the fixed rod 18 move relative to each other. The second movable sleeve 19, the fixed sleeve 20, the T-shaped rod 21 and the movable block 24 are all adjusted and moved, thereby clamping and positioning the guide roller. By utilizing the elastic force of the third spring 22, when changing guide rollers of different specifications for tight inner hole turning, there is no need to spend additional time adjusting the clamping mechanism, which can improve the turning efficiency of the guide roller. After the T-shaped column 14 is separated from the arc groove 27 and the rectangular groove 6, the T-shaped column 14 and the first movable sleeve 13 return to their initial state under the action of the second spring 16. The adjusting rod 25 is adjusted and rotated as the first movable sleeve 13 moves. The end of the adjusting rod 25 away from the first movable sleeve 13 can contact the trapezoidal groove 26 at another adjacent position, thereby adjusting the movement of the second movable sleeve 19 again. This cycle continues until the guide roller is clamped and positioned. The movable plate 4 and the electric guide rail 3 move relative to each other, and the turning mechanism 5 moves closer to the guide roller to perform turning machining on the inner hole of the guide roller.
[0021] The first spring 15 is initially in a compressed state; It should be noted that the reaction force generated by the compression of the first spring 15 acts on the surface of the T-shaped column 14. During the clamping and positioning of the guide roller, when the adjusting column 23 is not in contact with the surface of the guide roller, during the relative rotation between the T-shaped column 14 and the arc groove 27, both the T-shaped column 14 and the first movable sleeve 13 move in the direction of compressing the second spring 16. Utilizing the elastic force of the second spring 16, after the T-shaped column 14 separates from the arc groove 27, it can return to its initial state. Only when the end of the adjusting column 23 away from the second movable sleeve 19 contacts the surface of the guide roller, and the T-shaped column 14 and the arc groove 27 rotate relative to each other, will the T-shaped column 14 move relative to the first movable sleeve 13, and the first spring 15 will be further compressed. At this time, the end of the adjusting rod 25 away from the first movable sleeve 13 cooperates with the trapezoidal groove 26 at the corresponding position to hold the second movable sleeve 19 against it, and the second movable sleeve 19 will not be adjusted or moved.
[0022] The surface of the movable block 24 is provided with a first inclined groove 241, and the end face of the adjusting column 23 away from the second movable sleeve 19 is symmetrically provided with a second inclined groove 231. It should be noted that the two T-shaped rods 21 can be adjusted and moved together with the second movable sleeve 19 and the fixed sleeve 20. The ends of the multiple T-shaped rods 21 away from the third spring 22 first contact the surface of the guide roller. Then the T-shaped rods 21 remain stationary, and relative movement occurs between the T-shaped rods 21 and the fixed sleeve 20. The third spring 22 is compressed, and the second inclined groove 231 on the surface of the adjusting column 23 also moves closer to the first inclined groove 241. Then relative movement occurs between the first inclined groove 241 and the second inclined groove 231, and the two movable blocks 24 are adjusted to move away from each other. The movable blocks 24 are in close contact with the surface of the guide roller to be machined, which can be adapted to stably clamp and position guide rollers of different specifications. It should be noted that the turning mechanism is similar in structure to the mechanism used by existing turning machine tools to turn the inner hole of the workpiece. It includes components such as turning tools, telescopic rods and drive shafts, and is a mature technology that will not be described in detail here.
[0023] It should be noted that, without the application of external force, the second movable sleeve 19 does not move relative to the fixed rod 18. During the process of moving the second movable sleeve 19 toward the guide roller, the second movable sleeve 19 can be intermittently adjusted.
[0024] The bottom of the rectangular groove 6 has symmetrical through holes 61; It should be noted that the through hole 61 facilitates the unloading of the guide roller after the inner hole machining is completed.
[0025] The wall of the rectangular groove 6 is fixedly connected to the limiting plate 62 next to the arc groove 27, and the surface of the rotating ring 7 is symmetrically fixedly connected to the limiting ring 63. The multiple limiting plates 62 are rotatably connected to the limiting ring 63. It should be noted that the limiting ring 63 and the limiting plate 62 can limit the installation of the rotating ring 7, ensuring that the rotating ring 7 can be stably adjusted and rotated.
[0026] Rollers 71 are symmetrically installed on the outer side of the rotating ring 7 next to the annular rack 8, and all four rollers 71 are rotatably connected to the upper surface of the lathe base 1. It should be noted that the roller 71 provides support for the rotating ring 7, and the weight of the rotating ring 7 itself will not be fully applied to the surface of the limiting plate 62, thus ensuring that the rotating ring 7 can be stably adjusted and rotated.
[0027] The surface of the mounting base 11 is fixedly connected to an arc-shaped block 111 that is evenly distributed in a ring on the outside of the first movable sleeve 13; It should be noted that the arc-shaped block 111 can protect the second spring 16, enabling it to stably extend and retract along its own axis.
[0028] A ball bearing 141 is fitted to the end of the T-shaped post 14 away from the first spring 15; It should be noted that the arrangement of the ball bearing 141 can reduce the contact wear between the arc groove 27 and the T-shaped column 14, thereby extending the service life of the lathe.
[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0030] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.
Claims
1. A precision turning device for the inner hole of a guide roller, comprising a lathe base (1), mounting grooves (2) symmetrically formed on the upper surface of the lathe base (1), electric guide rails (3) fixedly connected to the groove wall of the mounting grooves (2), a movable plate (4) slidably connected to the surfaces of the two electric guide rails (3), and a turning mechanism (5) disposed on the upper surface of the movable plate (4), characterized in that, A rectangular groove (6) is provided in the middle of the upper surface of the lathe base (1). A rotating ring (7) is rotatably connected to the wall of the rectangular groove (6). An annular rack (8) is fixedly connected to the outside of the rotating ring (7). A first gear (9) is meshed on the surface of the annular rack (8). A first motor (10) is fixedly connected to the upper surface of the lathe base (1) next to the rectangular groove (6). The output end of the first motor (10) is fixedly connected to the first gear (9). The rotating ring (7) is fixedly connected to a mounting base (11) that is evenly distributed in a ring. The mounting base (11) has a circular hole (12) on its surface. A first movable sleeve (13) is slidably connected to the wall of the circular hole (12). A T-shaped column (14) is slidably connected to the inner wall of the first movable sleeve (13). A first spring (15) is fixedly connected to one end of the T-shaped column (14) inside the first movable sleeve (13). The end of the first spring (15) away from the T-shaped column (14) is fixedly connected to the inner wall of the first movable sleeve (13). A second spring (16) is fixedly connected between the two first movable sleeves (13). The rotating ring (7) is provided with three arc-shaped plates (17) that are evenly distributed in a ring. The surfaces of the arc-shaped plates (17) are symmetrically fixed. A fixed rod (18) is fixedly connected to the fixed sleeve (18), and a second movable sleeve (19) is fitted on the surface of the fixed rod (18). A fixed sleeve (20) is symmetrically fixedly connected to the end of the second movable sleeve (19) away from the arc plate (17). A T-shaped rod (21) is slidably connected to the inner wall of the fixed sleeve (20) away from the second movable sleeve (19). A third spring (22) is fixedly connected to the end of the surface of the T-shaped rod (21) inside the fixed sleeve (20). The end of the third spring (22) away from the T-shaped rod (21) is fixedly connected to the inner wall of the fixed sleeve (20). An adjusting column (23) is fixedly connected to the surface of the second movable sleeve (19) between the two fixed sleeves (20). A movable block (24) is slidably connected to the end of the T-shaped rod (21) away from the third spring (22). An adjusting rod (25) is installed on the outer surface of the first movable sleeve (13) by a torsion spring. Trapezoidal grooves (26) are symmetrically and equidistantly opened on the outer surface of the second movable sleeve (19). The end of the adjusting rod (25) away from the first movable sleeve (13) is fitted with the trapezoidal groove (26). The rectangular groove (6) has two side walls symmetrically provided with arc-shaped grooves (27).
2. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, The first spring (15) is initially in a compressed state.
3. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, The surface of the movable block (24) is provided with a first inclined groove (241), and the end face of the adjusting column (23) away from the second movable sleeve (19) is symmetrically provided with a second inclined groove (231).
4. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, The rectangular groove (6) has through holes (61) symmetrically opened at the bottom of the groove wall.
5. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, The rectangular groove (6) has a fixed connection of a limiting plate (62) next to the arc groove (27), and the rotating ring (7) has a fixed connection of a limiting ring (63) symmetrically on its surface. The multiple limiting plates (62) are rotatably connected to the limiting rings (63).
6. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, Rollers (71) are symmetrically installed on the outer side of the rotating ring (7) next to the annular rack (8), and all four rollers (71) are rotatably connected to the upper surface of the lathe base (1).
7. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, The mounting base (11) has an arc-shaped block (111) that is uniformly distributed in a ring on the outer side of the first movable sleeve (13).
8. The precision turning device for the inner hole of a guide roller according to claim 1, characterized in that, A ball bearing (141) is fitted to the end of the T-shaped post (14) away from the first spring (15).