Grinding wheel moving mechanism with long service life and high precision

Abstract

The invention relates to a long-life high-precision grinding wheel moving mechanism which comprises a grinding wheel box body, an upper inner grinding wheel is arranged in the upper space in the grinding wheel box body, the grinding wheel box body is sleeved with an upper outer grinding wheel, an inner plate is arranged on a bottom plate on the grinding wheel box body, a grinding wheel hole is formed in the middle of the inner plate, and an inclined hopper is arranged on the bottom face of the inner plate. A cylindrical sliding base is arranged in a hole in the center of the inner bottom wall of the inclined hopper, a cylindrical sliding sleeve is arranged in a cylindrical sliding base hole, a disc is arranged on the flange face of the cylindrical sliding sleeve, and an outer dustproof sleeve is arranged below the disc. A sliding pair, a screw transmission mechanism, a gear transmission mechanism and a guide mechanism are separately designed, and an adjusting nut is arranged on the lower end face of a gear nut, so that the axial clearance can be adjusted after a thread pair is abraded. The device has the effect of improving the transmission precision stability of the thread pair.

Description

Technical Field

[0001] The present application relates to the technical field of metal cutting machine tools, and in particular to a long-life high-precision grinding wheel moving mechanism. Background Art

[0002] At present, cutting machine tools are used in metal cutting. The existing grinding wheel moving mechanism is designed separately with sliding pairs, screw transmission mechanisms, gear transmission mechanisms and guide mechanisms. The disadvantages are that there are many mechanisms, many parts, complex structures, low transmission accuracy and high manufacturing costs. Secondly, the dustproof seal ring is used to seal between the sliding column and the sliding seat in the dustproof device in the existing grinding wheel up and down moving mechanism. The material of this seal ring is rubber.

[0003] With regard to the above-mentioned related technologies, the inventors believe that the following defects exist: when the grinding wheel grinds iron chips, sometimes the temperature of the iron chips after grinding reaches more than 1000 degrees. In this way, the iron chips fly to the sliding column and stick together. When the number reaches a certain amount, the sealing ring is burned and the sealing effect is destroyed. During the movement of the grinding wheel, the grinding iron chips enter the gap between the sliding column and the sliding seat, causing the grinding surface of the grinding wheel to deflect, thereby causing the upper and lower grinding surfaces of the grinding wheels to be non-parallel, seriously affecting the verticality and height accuracy of the ground parts, greatly reducing the grinding accuracy of the equipment, and greatly reducing the service life of the equipment. Summary of the invention

[0004] In order to improve the problem of greatly reduced grinding accuracy and greatly reduced service life of equipment, the present application provides a long-life and high-precision grinding wheel moving mechanism.

[0005] The present application provides a long-life high-precision grinding wheel moving mechanism that adopts the following technical solutions:

[0006] A long-life high-precision grinding wheel moving mechanism comprises a grinding wheel box, wherein an upper inner grinding wheel is arranged in the upper space of the grinding wheel box, an upper outer grinding wheel is arranged on the grinding wheel outer sleeve, an inner plate is arranged on the bottom plate of the grinding wheel box, a grinding wheel hole is arranged in the middle of the inner plate, an oblique bucket is arranged on the bottom surface, a cylindrical sliding seat is arranged in the hole at the center of the bottom wall of the oblique bucket, a cylindrical sliding sleeve is arranged in the hole of the cylindrical sliding seat, a disc is arranged on the flange surface of the cylindrical sliding sleeve, an outer dust cover is arranged under the disc, a middle dust cover is arranged in the hole of the outer dust cover, and an inner dust cover is arranged in the hole of the middle dust cover;

[0007] A flat key is arranged on the outer circle of the middle section of the cylindrical slide seat, and the right end of the flat key is arranged in the groove of the cylindrical slide seat and in the long groove on the outer circle of the cylindrical sleeve. A support ring is arranged on the outer circle of the lower section of the cylindrical slide seat, and a bearing seat is arranged on the outer circle of the lower section of the support ring. A cross roller bearing is arranged in the hole of the bearing seat, and a gear nut is arranged on the inner hole of the cross roller bearing. The inner thread of the gear nut is meshed with the outer thread of the cylindrical sleeve. An adjusting nut is arranged on the lower end face of the gear nut, and they are connected together with a hexagonal bolt. The inner thread of the adjusting nut is meshed with the outer thread of the cylindrical sleeve. A round nut is arranged on the upper end face of the inner ring of the cross roller bearing, and the inner thread of the round nut is meshed with the outer thread of the gear nut.

[0008] The cam is provided with a plurality of screws, and the plurality of screws are provided with a plurality of grooves, and the grooves are provided with a plurality of grooves, and the grooves are connected to the plurality of grooves by a plurality of screws.

[0009] By adopting the above technical scheme, high-precision grinding of the workpiece surface is achieved through the combination of the inner grinding wheel and the outer grinding wheel. The clearance match of the cylindrical sleeve, the cylindrical slide seat and its dust cover ensures the stability of the grinding wheel during movement, thereby improving the processing accuracy. The multi-layer protection of the inner and outer dust covers and the middle dust cover effectively prevents the dust generated during the grinding process from entering the sliding parts and rotating parts, reducing wear. The cross roller bearing is adopted to provide the gear nut with the ability to bear axial force, radial force and overturning torque and high-precision rotation, reduce the structural volume, reduce bearing wear, and extend the service life of the mechanism. The dual match of the gear nut and the adjusting nut can adjust the axial clearance with the cylindrical sleeve to ensure high-precision stability during the up and down movement of the grinding wheel. A two-layer vacuum cleaner interface is set on the left side, which can be connected to an external vacuum cleaner to remove dust generated by grinding in real time, keep the working environment clean, and improve operating efficiency. The grinding wheel moving mechanism has high grinding accuracy and efficiency through precise multi-layer structure design and accessory selection, which significantly extends the equipment life, reduces maintenance costs, and adapts to a variety of complex working environments.

[0010] Preferably, the bottom surface of the inner plate is threadedly connected to the bevel bucket by a sixth screw, the number of hole two is multiple, and the number of hole one is multiple.

[0011] By adopting the above technical solution, the inner plate and the bevel bucket are threadedly fixed by the sixth screw, which provides a more stable connection method, improves the rigidity of the overall structure, avoids loosening or displacement of components due to vibration or long-term use, optimizes the dust diversion path, and makes the waste generated by grinding be discharged more concentratedly through the bevel bucket, thereby improving the dust removal efficiency and reducing the difficulty of cleaning. Reasonable configuration of the number of holes helps to optimize the grinding pressure distribution on the grinding wheel, improve the uniformity of the grinding surface, reduce surface defects, and achieve a balance between the pressure difference inside and outside the grinding wheel, thereby improving the grinding effect.

[0012] Preferably, the outer dust cover is arranged below the disc and close to the outer circle, and the outer dust cover is threadedly connected to the disc by a fourth screw.

[0013] By adopting the above technical solution, an outer dust cover is arranged under the disc near the outer circle and connected with screw threads, so as to enhance the stability of the dust cover and the disc, effectively block dust from entering the interior of the grinding mechanism, improve the dustproof performance of the equipment, extend the service life of sliding parts and bearings, facilitate installation and maintenance, and improve the overall processing reliability.

[0014] Preferably, the inner dust cover is threadedly connected to the upper end surface of the hole at the center of the bottom plate of the inclined bucket by a second screw.

[0015] By adopting the above technical solution, the inner dust cover is threadedly connected to the upper end face of the hole at the center of the inclined bucket bottom plate by a second screw, which enhances the fixing stability of the inner dust cover, effectively prevents dust from entering the internal structure, improves the dustproof effect of the equipment, and facilitates installation and disassembly, extending the service life of key components and ensuring the continuous accuracy and reliability of grinding operations.

[0016] Preferably, the support ring is fixed to the outer circle of the lower section of the cylindrical slide seat by an eighth screw, and the bearing seat is threadedly connected to the support ring by a first screw.

[0017] By adopting the above technical solution, the support ring is fixed to the outer circle of the lower section of the cylindrical slide by the eighth screw, and the bearing seat is threadedly connected to the support ring by the first screw, thereby improving the installation stability and load-bearing capacity of the bearing seat, ensuring the coaxial accuracy of the grinding mechanism during high-load operation, reducing the impact of vibration on processing accuracy, and facilitating the installation and maintenance of components, thereby extending the service life of the equipment.

[0018] In summary, the technical features of the invention produce the following effects:

[0019] 1. The grinding wheel moves up and down, and the outer circle of the lower section of the cylindrical sleeve is provided with threads. The outer diameter of the long groove and the thread is equal to the outer diameter of the upper section (matching the clearance of the cylindrical slide seat hole). This part is designed for multiple purposes. The mechanism mainly uses seven simple parts, namely, the cylindrical slide seat, cylindrical sleeve, flat key, cross roller bearing, round nut, bearing seat and gear nut, to replace the existing grinding wheel moving mechanism, which separately designs the sliding pair, screw transmission mechanism, gear transmission mechanism and guide mechanism (a total of 12 main parts). This design has a simple structure and greatly reduces the manufacturing cost.

[0020] 2. An adjusting nut is set on the lower end surface of the gear nut, so that the axial clearance of the thread pair can be adjusted after wear, which improves the high precision and stability of the thread pair transmission;

[0021] 3. Through the dustproof device, the gap between the relatively moving parts is smaller than the gap between the grinding wheel dust and iron filings to achieve the dustproof sealing effect. The structure is simple and solves the problem of short service life of the existing dustproof seal using rubber dustproof rings.

[0022] 4. The gravity of grinding wheel dust and iron chips is utilized, and the inclined bucket structure is adopted to reduce the suction force, that is, reduce the power of the vacuum cleaner, reduce the grinding cost, and solve the problem that the existing machine tool uses a flat bottom structure, the grinding wheel dust and iron chips require a high-power vacuum cleaner, and the grinding cost is high;

[0023] 5. According to the suction force required by the upper and lower chambers in the grinding wheel box, the vacuum cleaner interface is divided into upper and lower layers to solve the problem that the existing machine tools do not have upper and lower layers, resulting in the suction of air in the chamber with small resistance, and the grinding wheel dust and iron filings in the other chamber are not sucked clean.

[0024] 6. The above technical features are combined to form new technical features: long life, high precision, low cost manufacturing and use of environmentally friendly grinding wheel moving mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application.

[0026] Figure 2 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0027] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0028] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point C in the middle.

[0029] Explanation of the accompanying drawings: 1. grinding wheel box; 2. support ring; 3. eighth screw; 4. bearing seat; 5. round nut; 6. cross roller bearing; 7. hexagonal bolt; 8. adjusting nut; 9. gear nut; 10. first screw; 11. second screw; 12. inner dust cover; 13. middle dust cover; 14. outer dust cover; 15. cylindrical sleeve; 16. third screw; 17. disc; 18. screw; 19. inner rotating part; 20. fourth screw; 21. outer rotating part; 22. fifth screw; 23. sixth screw; 24. inner plate; 25. bottom plate; 26. inner grinding wheel; 27. outer grinding wheel; 28. flat key; 29. ​​upper inner grinding wheel; 30. upper outer grinding wheel; 31. second-layer vacuum cleaner interface; 32. oblique bucket; 33. cylindrical slide seat; 34. seventh screw. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The present application discloses a long-life high-precision grinding wheel moving mechanism. Figure 1-Figure 4 , including a grinding wheel box 1, an upper inner grinding wheel 29 is arranged in the upper space of the grinding wheel box 1, an outer grinding wheel 30 is arranged on the outer sleeve, an inner plate 24 is arranged on the bottom plate 25 of the grinding wheel box 1, a grinding wheel hole is arranged in the middle of the inner plate 24, an oblique bucket 32 ​​is arranged on the bottom surface, a cylindrical slide seat 33 is arranged in the hole at the center of the bottom wall of the oblique bucket 32, a cylindrical slide sleeve 15 is arranged in the hole of the cylindrical slide seat 33, a disc 17 is arranged on the flange surface of the cylindrical slide sleeve 15, an outer dust cover 14 is arranged below the disc 17, a middle dust cover 13 is arranged in the hole of the outer dust cover 14, an inner dust cover 12 is arranged in the hole of the middle dust cover 13, and the bottom surface of the inner plate 24 is threadedly connected with the oblique bucket 32 ​​by a sixth screw 23 The grinding wheel moving mechanism is provided with a grinding wheel box 1, an upper inner grinding wheel 29, an upper outer grinding wheel 30, a bottom plate, an inner plate 24, an inclined bucket, a cylindrical slide seat, a cylindrical slide sleeve and a multi-layer dust cover structure, and a multi-point threaded fixed connection design is adopted, which effectively improves the structural stability and coaxial accuracy of the equipment; the setting of the multi-layer dust cover greatly enhances the dustproof effect, prevents dust from entering key components, reduces wear and prolongs the service life; the number optimization design of hole 1 and hole 2 further enhances the ventilation and chip removal capabilities and improves the grinding environment; the overall design achieves the technical effects of high-precision processing, enhanced durability and easy maintenance, and adapts to various working conditions.

[0032] A flat key 28 is provided on the outer circle of the middle section of the cylindrical slide seat 33, and the right part of the flat key 28 is provided in the groove and the long groove on the outer circle of the cylindrical sleeve 15. A support ring 2 is provided on the outer circle of the lower section of the cylindrical slide seat 33, and a bearing seat 4 is provided on the outer circle of the lower section of the support ring 2. A cross roller bearing 6 is provided in the hole of the bearing seat 4, and a gear nut 9 is provided in the inner hole of the cross roller bearing 6. The internal thread of the gear nut 9 is meshed with the external thread of the cylindrical sleeve 15. An adjusting nut 8 is provided on the lower end face of the gear nut 9, which is connected together with a hexagonal bolt 7. The internal thread of the adjusting nut 8 is meshed with the external thread of the cylindrical sleeve 15. A round nut 5 is provided on the upper end face of the inner ring of the cross roller bearing 6, and the internal thread of the round nut 5 is meshed with the gear nut The external thread of the female 9 is engaged, and a flat key 28 is set through the middle section of the cylindrical slide seat 33, so that the flat key 28 cooperates with the long groove on the outer circle of the cylindrical sleeve, thereby realizing the precise guidance and stable transmission of the sleeve; the support ring 2 and the bearing seat 4 are fixed at multiple points to improve the structural rigidity and load-bearing capacity; the application of the crossed roller bearing 6 enhances the radial and axial load-bearing performance of the mechanism, and improves the overall rotation accuracy and stability; the threaded engagement of the gear nut 9 and the adjusting nut 8 facilitates the precise positioning and adjustment of the sleeve; the linkage between the round nut 5 and the gear nut 9 ensures the reliable installation of the bearing and the controllability of the preload force, thereby realizing high-precision and long-life grinding wheel operation effects, and adapting to complex processing requirements.

[0033] The disc 17 arranged on the flange surface of the cylindrical sleeve 15 is fixedly connected to the flange by screws 16, thereby ensuring the stability and coaxial accuracy of the disc.

[0034] An outer rotating member 21 is arranged in the hole of the cylindrical sleeve 15, a boss is arranged in the middle of the upper plane of the flange of the outer rotating member 21, a concave resistance is arranged in the middle of the lower plane, an outer grinding wheel 27 is arranged near the outer circle, a hole 2 is arranged opposite to the inner grinding wheel 26, the inner circle of the concave resistance on the lower plane of the flange is clearance matched with the outer circle of the disc 17, an inner rotating member 19 is arranged in the hole of the outer rotating member 21, an inner grinding wheel 26 is arranged on the upper end surface of the flange of the inner rotating member 19 (near the outer circle), the inner rotating member 19 and the inner grinding wheel 26 are connected together by a fifth screw 22, a hole 1 is arranged near the inner circle of the inner grinding wheel 26, a convex ring is arranged in the middle of the lower end surface of the flange of the inner rotating member 19, the inner circle of the convex ring is clearance matched with the outer circle of the boss on the outer rotating member 21, a grinding wheel box door 27 is arranged on the right side of the grinding wheel box 1, and a two-layer vacuum cleaner interface 31 is arranged on the left side of the grinding wheel box. The cylindrical slide seat 33 arranged at the center of the inner bottom wall of the oblique bucket 32 ​​is threadedly connected to the oblique bucket 32 ​​and the cylindrical slide seat 33 by the seventh screw 34. In a preferred embodiment, the outer dust cover 14 is arranged below the disc 17 near the outer circle, and the outer dust cover 14 and the disc 17 are threadedly connected by the fourth screw 20. The inner dust cover 12 and the upper end surface of the hole at the center of the bottom plate 25 of the oblique bucket 32 ​​are threadedly connected by the second screw 11. The support ring 2 is fixed to the outer circle of the lower section of the cylindrical slide seat 33 by screws 3. The bearing seat 4 is threadedly connected to the support ring 2 by the first screw 10. The cylindrical slide sleeve 15 is precisely matched with the outer rotating member 21, the inner rotating member 19, the outer grinding wheel 27, and the inner grinding wheel 26 to ensure the stability and high-precision movement of the grinding wheel. The screw connection between the outer dust cover 14 and the disc 17, and the close fit between the inner dust cover 12 and the inclined bucket 32 ​​effectively prevent dust from entering key components, reduce wear and failure rate, and extend the service life of the equipment; the multi-layer dust cover design not only improves the sealing, but also improves the overall cleanliness of the equipment, and is suitable for industrial environments with long-term operation. The connection between the support ring, the bearing seat and the cylindrical slide seat is enhanced by precision screws to enhance the load-bearing capacity, ensuring the reliable operation of the equipment under high loads, while the use of cross roller bearings further improves the rotation accuracy and stability; the threaded connection between the inclined bucket 32 ​​and the cylindrical slide seat 15 strengthens the firmness of the overall structure, and the two-layer dust collector interface effectively solves the dust problem generated during the grinding process, improves the safety and cleanliness of the working environment, avoids the harm of dust to equipment and operators, and optimizes the working efficiency, accuracy, durability and dustproof performance of the grinding wheel moving mechanism, so that the equipment can operate stably under complex and harsh working conditions and meet the needs of long-term high-precision grinding processing.

[0035] The implementation principle of a long-life high-precision grinding wheel moving mechanism in the embodiment of the present application is as follows: when in use, the grinding wheel moves up and down: the servo motor rotates forward and reversely through the motor gear to drive the gear nut 9 and the adjusting nut 8 to rotate forward and reverse. Because the cylindrical slide seat 33 is fixedly connected to the flat key 28, the long groove of the cylindrical sleeve 15 and the flat key 28 are in clearance fit, so the cylindrical sleeve 15 can only move up and down in the cylindrical slide seat 33 and cannot rotate, driving the cylindrical sleeve 15 to move up and down, that is, the inner and outer rotating parts and the inner and outer grinding wheels arranged on the cylindrical sleeve 15 move up and down at the same time, achieving the purpose of moving the grinding wheel up and down, dust-proof device: when the inner and outer rotating parts rotate in different directions, that is, the inner and outer grinding wheels also rotate in different directions, the inner and outer grinding wheels also rotate in the same way and the vacuum cleaner is turned on, when the grinding wheel is grinding, part of the grinding wheel ash and iron filings fall On the flange of the inner rotating member 19, because the inner rotating member 19 is driven by the rotation, the grinding wheel dust and iron filings move toward the inner circle of the inner grinding wheel under the action of centrifugal force and leak into the 24 holes one, and then pass through the hole two on the flange plane of the outer rotating member 21 and fall on the plane of the bottom plate 25 on the inclined bucket 32. Another part of the grinding wheel dust and iron filings leak into the gap between the inner and outer grinding wheels by their own gravity, and also enter the hole two on the flange plane of the outer rotating member 21. During the movement of these two parts of grinding wheel dust and iron filings, not only because the inner circle of the convex ring 18 on the inner rotating member 19 and the outer circle of the convex ring 18 on the outer rotating member are clearance-matched, the gap is smaller than the grinding wheel dust and iron filings particles, that is, they are relatively sealed, and the grinding wheel dust and iron filings move away from the rotation center under the action of centrifugal force, and then, in the vacuum cleaner (the suction and Under the action of free gravity, the dust and iron filings of the grinding wheel enter the vacuum cleaner through the lower layer of the second-layer vacuum cleaner interface 31, so the dust and iron filings of the grinding wheel will not enter the matching gap between the cylindrical sleeve 15 and the outer rotating member 21 and the matching gap between the inner and outer rotating members 21. The main part of the dust and iron filings of the grinding wheel fall on the inner table surface, and then, under the action of the suction of the vacuum cleaner, they enter the vacuum cleaner through the upper layer of the second-layer vacuum cleaner interface 31. The gap between the outer circle of the upper outer grinding wheel 30 and the inner table hole leaks out, and part of the dust and iron filings of the grinding wheel fall on the upper plane of the bottom plate 25 of the inclined bucket 32. Under the action of the suction of the vacuum cleaner and free gravity, they enter the vacuum cleaner through the lower layer of the second-layer vacuum cleaner interface 31. When the inner and outer grinding wheels move, they first move upward, because the cylindrical sleeve 15 moves upward under the action of the grinding wheel moving mechanism, driving the disc 1 7 moves upward, and drives the outer dust cover 14 to move upward. When the moving distance is large, the lower inner circle upper end face of the outer dust cover 14 pushes the upper outer circle lower end face of the middle dust cover 13, so that the middle dust cover 13 moves upward. When the lower inner circle upper end face of the middle dust cover 13 contacts the upper outer circle lower end face of the inner dust cover 12, the lower inner and outer grinding wheels move to the maximum and highest position. Secondly, the downward movement is introduced. Because the cylindrical sliding sleeve 15 moves downward under the action of the grinding wheel moving mechanism, it drives the disc 17 to move downward, and drives the outer dust cover 14 to move downward. When the moving distance is large, the lower end face of the disc 17 pushes the upper end face of the middle dust cover 13, so that the middle dust cover 13 moves downward. When the upper end face of the inner dust cover 12 contacts the lower end face of the disc 17, the lower inner and outer grinding wheels move to the lowest position.During the up and down movement of the inner and outer grinding wheels, the dust sleeves are relatively sealed because the gaps are smaller than the grinding wheel dust and iron filings. Therefore, under the action of the vacuum cleaner suction and free gravity, the grinding wheel dust and iron filings will not enter the space between the cylindrical sleeve 15 and the cylindrical slide seat 33 when they pass through the lower layer of the second-layer vacuum cleaner interface 31 and enter the vacuum cleaner.

[0036] The technical advantages of a long-life high-precision grinding wheel moving mechanism in the embodiment of the present application are:

[0037] 1. Enhanced durability and extended service life:

[0038] The multi-layer dust cover design greatly improves the dust-proof effect and prevents dust from entering key components, thereby reducing wear and extending the service life of the equipment; the application of cross roller bearings improves the radial and axial load-bearing performance, enhancing the load-bearing capacity and service life of the equipment.

[0039] 2. Optimize ventilation and chip removal capabilities:

[0040] By optimizing the number of holes one and two, the ventilation and chip removal functions are enhanced, the grinding environment is improved, and the influence of heat and chips generated during grinding on the equipment is reduced.

[0041] 3. Good working environment control:

[0042] The two-layer vacuum cleaner interface design effectively solves the dust problem generated during the grinding process, avoids the harm of dust to equipment and operators, and improves the safety and cleanliness of the working environment. The working principle of the dust prevention device is to ensure the effective discharge of grinding chips and dust through the combination of vacuum cleaner and centrifugal force, prevent them from entering important components, and reduce the failure rate of equipment.

[0043] 4. Adapt to complex working conditions and high-precision processing:

[0044] The grinding wheel moving mechanism can maintain high-precision operation in complex processing environments and adapt to high-load and long-term grinding processing requirements. The double-layer dust-proof structure and precise guide design enable the equipment to operate stably under harsh working conditions, ensuring high precision, durability and easy maintenance.

[0045] 5. Easy to adjust and maintain:

[0046] The design of the adjusting nut and the gear nut allows the equipment to be easily and precisely adjusted, thereby optimizing working performance. The structure is simple and modular, and is easy to disassemble and maintain, which improves the convenience of use and maintenance efficiency of the equipment.

[0047] 6. High precision and stability:

[0048] The multi-point threaded fixed connection design ensures the structural stability of the equipment and reduces errors caused by vibration or deviation during the grinding process; the precise fit between the cylindrical slide and the cylindrical sleeve, as well as the combination of the gear nut and the adjusting nut, ensure the precise guidance and transmission stability of the sleeve, and improve the overall rotation accuracy and stability.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A long-life high-precision grinding wheel moving mechanism, comprising a grinding wheel box (1), characterized in that: An upper inner grinding wheel (29) is arranged in the upper space of the grinding wheel box (1), an upper outer grinding wheel (30) is arranged outside the upper inner grinding wheel (29), an inner plate (24) is arranged on the bottom plate (25) on the grinding wheel box (1), a grinding wheel hole is arranged in the middle of the inner plate (24), an inclined bucket (32) is arranged on the bottom surface of the inner plate (24), a cylindrical sliding seat (33) is arranged in the hole at the center of the inner bottom wall of the inclined bucket (32), a cylindrical sliding sleeve (15) is arranged in the hole of the cylindrical sliding seat (33), a disc (17) is arranged on the flange surface of the cylindrical sliding sleeve (15), an outer dust cover (14) is arranged below the disc (17), a middle dust cover (13) is arranged in the hole of the outer dust cover (14), and an inner dust cover (12) is arranged in the hole of the middle dust cover (13); A flat key (28) is arranged on the outer circle of the middle section of the cylindrical sliding seat (33), the left part of the flat key (28) is arranged in the groove, and the right end of the flat key (28) is arranged in the long groove on the outer circle of the cylindrical sliding sleeve (15). A support ring (2) is arranged on the outer circle of the lower section of the cylindrical sliding seat (33), and a bearing seat (4) is arranged on the outer circle of the lower section of the support ring (2). A cross roller bearing (6) is arranged in the hole of the bearing seat (4), and the inner hole of the cross roller bearing (6) A gear nut (9) is provided, the internal thread of the gear nut (9) meshes with the external thread of the cylindrical sleeve (15), an adjusting nut (8) is provided on the lower end surface of the gear nut (9), and the two are connected together by a hexagonal bolt (7), the internal thread of the adjusting nut (8) meshes with the external thread of the cylindrical sleeve (15), and a round nut (5) is provided on the upper end surface of the inner ring of the cross roller bearing (6), and the internal thread of the round nut (5) meshes with the external thread of the gear nut (9); An outer rotating member (19) is arranged in the hole of the cylindrical sleeve (15); an outer grinding wheel (25) is arranged on the upper plane of the flange of the outer rotating member (19) near the outer circle; the outer rotating member (19) and the outer grinding wheel (25) are connected by a fourth screw (20), and a convex platform is arranged near the middle; a concave platform is arranged on the lower plane of the flange near the middle; a second hole is arranged below the inner grinding wheel (26); a disc (17) is arranged in the concave pit to match the clearance of the outer circle; the disc (17) and the upper end surface of the cylindrical sleeve (15) are connected together by a third screw (16); the outer rotating member (19) and the outer grinding wheel (25) are connected by a fourth screw (20); and a convex platform is arranged near the middle; a concave platform is arranged on the lower plane of the flange near the middle; a second hole is arranged below the inner grinding wheel (26); a disc (17) is arranged in the concave pit to match the clearance of the outer circle; the disc (17) and the upper end surface of the cylindrical sleeve (15) are connected together by a third screw (16); An inner rotating member (21) is arranged in the hole of the moving member (19); an inner grinding wheel (26) is arranged near the outer circle of the upper end surface of the flange of the inner rotating member (21); the inner rotating member (21) and the inner grinding wheel (26) are connected together by a fifth screw (22); a hole 1 is arranged near the inner circle of the inner grinding wheel (26); a convex ring is arranged in the middle of the lower end surface of the flange of the inner rotating member (21); the inner circle and the outer circle of the boss on the outer rotating member (19) are clearance-matched; a grinding wheel box door (27) is arranged on the right side of the grinding wheel box (1); and a second-layer dust collector interface (31) is arranged on the left side of the grinding wheel box (1).

2. The long-life high-precision grinding wheel moving mechanism according to claim 1 is characterized in that: The bottom surface of the inner plate (24) is threadedly connected to the inclined bucket (32) by a sixth screw (23).

3. The long-life high-precision grinding wheel moving mechanism according to claim 1 is characterized in that: The cylindrical sliding seat (33) arranged at the center of the inner bottom wall of the inclined bucket (32) is threadedly connected to the inclined bucket (32) and the cylindrical sliding seat (33) through a seventh screw (34).

4. The long-life high-precision grinding wheel moving mechanism according to claim 1 is characterized in that: A disc (17) is arranged on the flange surface of the cylindrical sleeve (15), and the flange and the disc (17) are fixedly connected by a third screw (16).

5. The long-life high-precision grinding wheel moving mechanism according to claim 1 is characterized in that: The outer dust cover (14) is arranged below the disc (17) and close to the outer circle, and the outer dust cover (14) and the disc (17) are threadedly connected by a fourth screw (20).

6. The long-life high-precision grinding wheel moving mechanism according to claim 1, characterized in that: The inner dust cover (12) is threadedly connected to the upper end surface of the hole at the center of the bottom plate (25) of the inclined bucket (32) by a second screw (11).

7. The long-life high-precision grinding wheel moving mechanism according to claim 1 is characterized by: The support ring (2) is fixed to the outer circle of the lower section of the cylindrical slide seat (33) by an eighth screw (3), and the bearing seat (4) is threadedly connected to the support ring (2) by a first screw (10).

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