A superfinishing machine with two superfinishing modes: linear superfinishing and arc superfinishing

Abstract

The present invention discloses a superfinishing machine with two superfinishing modes, linear superfinishing and arc superfinishing, comprising a bed, a first pedestal is arranged at the top center position of the bed, a feed system is arranged inside the first pedestal, a lifting seat is arranged inside the feed system, a grinding drive system is arranged on one side of the lifting seat, a superfinishing grinding head is arranged on the other side of the lifting seat, a main shaft is arranged inside one side of the bed, a magnetic disk is arranged on the top of the main shaft, and a plurality of support blocks are arranged on the top of the magnetic disk. The main shaft system adopts a higher precision N bearing and a high-speed 2-angle contact thrust ball bearing with a higher radial load capacity, which effectively reduces the radial runout and axial movement of the main shaft during rotation, ensures the stability of the bearing to be ground during high-speed rotation, makes the machined bearing size accuracy higher, and the shape and position tolerances such as roundness and cylindricity smaller, which can meet the processing requirements for bearing accuracy.

Description

Technical Field

[0001] The invention relates to the field of superfinishing, in particular to a superfinishing machine with two superfinishing modes: linear superfinishing and arc superfinishing. Background Art

[0002] In the field of modern mechanical manufacturing, bearings are key basic components, and their precision and quality have a decisive impact on the performance, reliability and service life of mechanical equipment. With the continuous development of industrial technology, industries such as high-end equipment manufacturing, aerospace, and precision instruments have increasingly stringent requirements for bearing precision, and traditional bearing superfinishing machines have gradually exposed many deficiencies in the processing process. The bearings used in the spindle of traditional superfinishing machines often cannot meet the requirements of high precision and high radial load capacity at the same time. During high-speed rotation processing, radial runout and axial movement are prone to exceed the tolerance, which directly leads to the difficulty of the processed bearings in achieving high standards in terms of form and position tolerances such as dimensional accuracy, roundness, and cylindricity, and cannot meet the requirements of the above-mentioned high-end industries for high-precision bearings. For example, in the processing of bearings for aircraft engines, even small form and position tolerance deviations may cause serious safety hazards. In addition, traditional superfinishing machines have poor adaptability when facing the processing of bearings of different sizes and specifications. Its drive disc is usually a fixed structure. When processing bearings of different diameters, the entire drive disc needs to be replaced, which not only consumes a lot of time and labor costs, but also easily introduces installation errors during the replacement process, affecting the consistency of processing accuracy. At the same time, during the super-finishing process, there is a lack of effective stabilizing devices to suppress the vibration and instability caused by grinding force, spindle rotation, etc. This makes it easy for chatter marks and large waviness to appear on the machined bearing surface, reducing the surface quality and running stability of the bearing, and further affecting its performance under high-speed and high-precision conditions. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a superfinishing machine having two superfinishing modes: linear superfinishing and circular arc superfinishing.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a superfinishing machine with two superfinishing modes of linear superfinishing and arc superfinishing, comprising a bed, a first pedestal is arranged at the top center position of the bed, a feeding system is arranged inside the first pedestal, a lifting seat is arranged inside the feeding system, a grinding drive system is arranged on one side of the lifting seat, and a superfinishing grinding head is arranged on the other side of the lifting seat, a spindle is arranged inside one side of the bed, a spindle drive and speed change system is arranged at the bottom end of the spindle, a disk is arranged at the top of the spindle, a plurality of support blocks are arranged at the top of the disk, a support member is arranged on one side of the outer wall of the spindle, and stabilizing members are arranged at both ends of the support member, a second pedestal is arranged on the side of the bed close to the spindle, a balancing drive system is arranged at the top of the second pedestal, a stabilizing support plate is arranged at the output end of the balancing drive system, an adjusting component is arranged at the bottom end of the stabilizing support plate, balancing wheel frames are arranged inside both sides of the stabilizing support plate, a balancing wheel is arranged on the balancing wheel frame, and a limiting component is arranged on the outer wall of the balancing wheel frame.

[0005] Furthermore, a "T"-shaped slot is arranged on the disk, and the slot is an inverted "T"-shaped slot. A matching insert block is arranged inside the slot, and the insert block is connected to the support block.

[0006] Furthermore, a screw rod for connecting to the stabilizing member is provided on the support member, the connection position between the screw rod and the stabilizing member is a bare rod, and a thread is provided on the top outer wall of the stabilizing member, a nut is provided on the stabilizing member, and a strip slide groove for adjusting the position on the support member is provided inside the stabilizing member.

[0007] Furthermore, the adjustment assembly includes a mounting plate, which is arranged at the bottom center position of the stabilizing support plate by bolts, a rotatable adjusting member is arranged inside the mounting plate, a stud is arranged inside the adjusting member, a connecting plate is arranged at the other end of the stud, tiltable and movable adjusting inclined plates are arranged on both sides of the connecting plate, a connecting member is arranged at the other end of the adjusting inclined plate, an adjusting rod is arranged on the outside of the connecting member, an adjusting rod fixing member is arranged at the end of the adjusting rod, and the adjusting rod fixing member is connected to the balancing wheel frame.

[0008] Furthermore, a sliding block is provided at the connection position between the adjusting inclined plate and the connecting member, and a strip groove matching the sliding block is provided on the connecting member.

[0009] Furthermore, an annular groove is provided inside the mounting plate, and a rotatable annular rotation limiting plate is provided inside the annular groove, and the annular rotation limiting plate is connected to the adjusting member.

[0010] Furthermore, the limiting assembly includes a fixing member, which is detachably arranged on the outer wall of the balancing wheel frame, and support plates are arranged on both sides of the outer wall of the fixing member, a rotating support member is arranged inside the support plate, a positioning wheel is arranged at the bottom end of the rotating support member, and bolts are arranged at the connecting position of the support plate and the rotating shaft of the fixing member.

[0011] Furthermore, the length of the outer support plate is greater than that of the inner support plate, the outer rotating support member is vertically arranged, and the inner rotating support member is L-shaped.

[0012] The beneficial effects of the present invention are:

[0013] 1. The spindle system adopts higher precision N bearings and high-speed 2-angle contact thrust ball bearings with higher radial load capacity, which effectively reduces the radial runout and axial movement of the spindle during rotation, ensures the stability of the bearing to be ground during high-speed rotation, and makes the machined bearings with higher dimensional accuracy, smaller form and position tolerances such as roundness and cylindricity, and can meet the processing requirements for bearing precision.

[0014] 2. The support block is installed on the disk by combining a "T"-shaped slot with an insert block. The position of the support block on the disk can be easily adjusted according to bearings of different sizes without replacing the entire drive disk. This greatly improves the adaptability of the superfinishing machine to bearings of different specifications, reduces the time and cost of equipment adjustment due to processing bearings of different sizes, and improves production efficiency.

[0015] 3. The combined design of the support and the stabilizer can flexibly adjust the position of the stabilizer on the support through the screw, the polished rod and the threaded connection as well as the strip slide on the stabilizer to achieve radial positioning of bearings of different diameters, further enhancing the processing compatibility of the superfinishing machine for bearings of various sizes, so that the equipment can quickly switch to process different types of bearing products on the same production line.

[0016] 4. The balancing drive system drives the stable support plate and the balancing wheel frame and balancing wheel thereon to work, and contacts the bearing during superfinishing, which can effectively offset the vibration and instability factors caused by grinding force, spindle rotation and other factors, provide a stable processing environment for the bearing, reduce chatter and surface waviness during processing, and improve the consistency and stability of the bearing surface quality.

[0017] 5. The adjustment assembly can achieve precise adjustment of the balance wheel frames on both sides to the inside and outside at the same time through the coordinated action of the adjustment parts, studs, connecting plates, adjustment inclined plates, connecting parts and adjustment rods, ensuring the uniformity and accuracy of the contact between the balance wheel and the bearing, and further improving the control ability of the bearing processing stability, so that the processing quality of the bearing can still remain stable and reliable during long-term continuous processing.

[0018] 6. The spindle bearing selection takes into account both precision and radial load capacity, and the entire spindle system has a reasonable structure, which can operate stably under high-speed, high-precision processing conditions, reducing equipment downtime caused by bearing wear, overheating and other faults, improving the overall reliability and service life of the equipment, and reducing equipment maintenance costs and production operation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present invention.

[0020] Figure 2 yes Figure 1 Detailed view of the connection structure from above.

[0021] Figure 3 yes Figure 1 Detailed view of the connection structure at the location of the central stabilizing support plate.

[0022] Figure 4 yes Figure 1 A magnified detail of the connection structure at position A in the middle.

[0023] Figure 5 yes Figure 1 Front view of the connection structure details.

[0024] Figure 6 yes Figure 1 Detailed view of the connection structure from above.

[0025] Figure 7 yes Figure 1 Left view connection structure details.

[0026] Figure 8 yes Figure 5 Detailed diagram of the connection structure between the balance drive system and the stable support plate.

[0027] Fig. 9 yes Figure 8 Detailed view of the connection structure from above.

[0028] Fig.10 yes Figure 8 Detailed view of the left side connection structure between the center stabilizing support plate and the balancing wheel frame.

[0029] Explanation of the accompanying drawings: 1. bed, 2. first pedestal, 3. feeding system, 4. lifting seat, 5. grinding drive system, 6. superfine grinding head, 7. spindle, 8. spindle drive and speed change system, 9. disk, 10. support block, 11. support member, 12. stabilizing member, 13. bearing, 14. second pedestal, 15. balancing drive system, 16. stabilizing support plate, 17. balancing wheel frame, 18. balancing wheel, 19. fixing member, 20. supporting plate, 21. rotating support member, 22. positioning wheel, 23. bolt, 24. mounting plate, 25. adjusting member, 26. stud, 27. connecting plate, 28. adjusting inclined plate, 29. connecting member, 30. adjusting rod, 31. adjusting rod fixing member, 32. cooling system. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with specific embodiments, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

[0031] See also Figure 1-Figure 10 It is a structural schematic diagram of the present invention, a superfinishing machine with two superfinishing modes of linear superfinishing and arc superfinishing, including a bed 1, a first seat 2 is arranged at the top center position of the bed 1, a feeding system 3 is arranged inside the first seat 2, the first seat 2 is used to provide an installation position for the feeding system 3, a lifting seat 4 is arranged inside the feeding system 3, the feeding system 3 drives the lifting seat 4 to move up and down through the rotation of the stud, the lifting seat 4 is used to provide the installation of a grinding drive system 5 and a superfinishing grinding head 6, the grinding drive system 5 provides power to the superfinishing grinding head 6, so that the superfinishing grinding head 6 grinds the bearing 13, the grinding drive system 5 is arranged on one side of the lifting seat 4, the superfinishing grinding head 6 is arranged on the other side of the lifting seat 4, and a cooling system is arranged on one side of the bed 1.

[0032] A spindle 7 is provided inside one side of the bed 1. The bearings used on the spindle 7 are replaced with N bearings with higher precision and high-speed 2-angle contact thrust ball bearings with higher radial load-bearing capacity. A spindle drive and speed change system 8 is provided at the bottom end of the spindle 7. The spindle drive and speed change system 8 is used to drive the spindle 7 to start working. A magnetic disk 9 is provided at the top of the spindle 7 to carry the bearings 13 to be ground. When the magnetic disk is energized, it can generate magnetic force to adsorb the bearings for easy grinding. A plurality of support blocks 10 are provided at the top of the magnetic disk 9. A "T"-shaped slot is provided on the magnetic disk 9. The slot is an inverted "T"-shaped slot. A matching plug-in block is provided inside the slot, and the plug-in block is connected to the support block 10. The support block 10 can be installed and removed from the inside of the slot on the magnetic disk 9 through the plug-in block. The support block 10 can be inserted into the magnetic disk 9 (it can also be replaced with other supports that can support The components supporting the bearing constitute a driving disk, and its function is to support the bearing. According to different bearing sizes, driving disks of different sizes are selected. However, when a pluggable support block 10 is used, its position on the magnetic disk 9 can be adjusted at any time without replacing the driving disk. A bearing 13 is arranged on the support block 10, and a support member 11 is arranged on one side of the outer wall of the main shaft 7 of the support block 10. The support member 11 is "C"-shaped and cooperates with a stabilizing member 12 to achieve radial positioning of the bearing to be ground and to support the bearing during grinding. Stabilizing members 12 are arranged at both ends of the support member 11, and a screw rod for connecting the stabilizing member 12 is arranged on the support member 11. The connection position between the screw rod and the stabilizing member 12 is a bare rod, and a thread is arranged on the top outer wall of the stabilizing member 12, a nut is arranged on the stabilizing member 12, and a strip slide groove for adjusting the position on the support member 11 is arranged inside the stabilizing member 12.

[0033] A second pedestal 14 is provided on one side of the bed 1 close to the spindle 7, a balancing drive system 15 is provided on the top of the second pedestal 14, the second pedestal 14 is used to provide installation of the balancing drive system 15, the balancing drive system 15 is used to provide power to the stable support plate 16, a stable support plate 16 is provided at the output end of the balancing drive system 15, the stable support plate 16 can swing at the output end of the balancing drive system 15, an adjustment component is provided at the bottom end of the stable support plate 16, the adjustment component is used to adjust the balancing wheel frames 17 on both sides to the inside and outside at the same time, balancing wheel frames 17 are provided inside the two sides of the stable support plate 16, the balancing drive system 15 drives the stable support plate 16 to move downward, cooperates with the balancing wheel frame 17 to make the balancing wheel 18 contact with the bearing 13, and provides stability of the bearing 13 during super finishing, a balancing wheel 18 is provided on the balancing wheel frame 17, and a limiting component is provided on the outer wall of the balancing wheel frame 17, the limiting component is used to provide the balancing wheel frame 17 with accurate alignment with the bearing 13 during the adjustment process, and at the same time cooperates with the balancing wheel 18 to increase the stability of the bearing during super finishing.

[0034] The adjustment assembly includes a mounting plate 24, which is arranged at the bottom center of the stable support plate 16 by bolts. A rotatable adjusting member 25 is arranged inside the mounting plate 24, and the adjusting member 25 can rotate inside the mounting plate 24. The adjustable stud 26 can move during the rotation process, and the stud 26 can drive the connecting plate 27 to move inward and outward during the movement. The stud 26 is arranged inside the adjusting member 25, and a connecting plate 27 is arranged at the other end of the stud 26. Adjustable inclined plates 28 that can be tilted and moved are arranged on both sides of the connecting plate 27. The connecting plate 27 drives the adjusting inclined plate 28 to shrink inward and open outward through the pin shaft during the adjustment process. The other end of the adjusting inclined plate 28 is provided with a connecting member 29, and the adjusting inclined plate 28 drives the adjusting rod 30 to move inward and outward through the connecting member 29 during the adjustment process. The balancing wheel frames 17 can be moved sideways, and an adjusting rod 30 is provided on the outer side of the connecting piece 29. During the movement, the adjusting rod 30 can drive the balancing wheel frame 17 to move outward and inward on the stable support plate 16 through the adjusting rod fixing piece 31, so that the balancing wheel frames 17 on both sides can be adjusted at the same time. An adjusting rod fixing piece 31 is provided at the end of the adjusting rod 30. The adjusting rod fixing piece 31 is rotatably set at the end of the adjusting rod 30. A limit rotating plate and a matching limit groove are provided at the connecting position. The adjusting rod fixing piece 31 is connected to the balancing wheel frame 17. A slider is provided at the connecting position of the adjusting inclined plate 28 and the connecting piece 29. A strip groove matching the slider is provided on the connecting piece 29. An annular groove is provided inside the mounting plate 24, and a rotatable annular rotation limit plate is provided inside the annular groove. The annular rotation limit plate is connected to the adjusting piece 25.

[0035] The limiting assembly includes a fixing member 19, which is detachably arranged on the outer wall of the balancing wheel frame 17. The fixing member 19 is installed and removed with the balancing wheel frame 17 by bolts. Support pallets 20 are arranged on both sides of the outer wall of the fixing member 19, and a rotating support member 21 is arranged inside the supporting pallet 20. The rotating support member 21 can rotate 180° inside the supporting pallet 20. When adjusting the balancing wheel frame 17 outward, the outer rotating support member 21 is adjusted upward. Conversely, when moving inward, the inner rotating support member 21 is adjusted upward and the outer rotating support member 21 is adjusted downward. A positioning wheel 22 is arranged at the bottom end of the rotating support member 21. The positioning wheel 22 contacts the bearing 13 and is used to position the balancing wheel 18. Bolts 23 are arranged at the connecting position of the rotating shaft of the supporting pallet 20 and the fixing member 19. The length of the outer supporting pallet 20 is greater than that of the inner supporting pallet 20. The outer rotating support member 21 is vertically arranged, and the inner rotating support member 21 is "L"-shaped.

[0036] When the present invention is in use, the support block 10 is first inserted into the disk 9 through the insert plate according to the size of the bearing 13 that needs to be super-finished. After the installation is completed, the bearing 13 is placed on the support block 10. After placement, the fixing work of the stabilizing member 12 is canceled. After the fixing is canceled, the stabilizing member 12 is adjusted so that the roller of the stabilizing member 12 contacts the bearing 13. After the contact, the control unit controls the balancing drive system 15 to move downward, and drives the stabilizing support plate 16 to move downward during the movement. When it moves above the bearing 13, the adjusting member 25 is rotated. During the rotation of the adjusting member 25, the stud 26 is driven to move. During the movement, the stud 26 drives the connecting plate 27 to move inward or outward. During the movement, the connecting plate 27 drives the adjusting rod 30 to move by adjusting the inclined plate 28 and the connecting member 29. During the movement, the adjusting rod 30 drives the balancing wheel frame 17 on the stabilizing support plate 16 to move outward through the adjusting rod fixing member 31. Or move inward, during the movement, the support member 21 and the positioning wheel 22 are rotated to perform positioning work, so that the balance wheel 18 is above the bearing 13. After the adjustment is completed, the stable support plate 16 is continued to be driven downward to make the balance wheel 18 contact with the bearing 13. After the contact, the control unit controls the spindle drive and speed change system 8 to start driving the spindle 7 to start working. During the working process, the spindle 7 drives the magnetic disk 9 and the support block 10 to rotate, thereby driving the bearing 13 to rotate. After the bearing 13 rotates, the feed system 3 is controlled to start working. During the working process, the feed system 3 drives the lifting seat 4 to move downward. During the downward movement of the lifting seat 4, the grinding drive system and the super-finishing grinding head 6 are driven to be in the processing position. After reaching the position, the grinding drive system is controlled to start working to make the super-finishing grinding head 6 start working, thereby super-finishing the bearing 13. During the working process, the super-finishing grinding head 6 is cooled by the cooling system 32.

Claims

1. A superfinishing machine with two superfinishing modes, linear superfinishing and arc superfinishing, comprising a bed (1), characterized in that: A first pedestal (2) is arranged at the center of the top of the bed (1), a feeding system (3) is arranged inside the first pedestal (2), a lifting seat (4) is arranged inside the feeding system (3), a grinding drive system (5) is arranged on one side of the lifting seat (4), and an ultra-precision grinding head (6) is arranged on the other side of the lifting seat (4), a main shaft (7) is arranged inside one side of the bed (1), a main shaft driving and speed change system (8) is arranged at the bottom end of the main shaft (7), a magnetic disk (9) is arranged at the top end of the main shaft (7), a plurality of support blocks (10) are arranged at the top end of the magnetic disk (9), and a main shaft (7) is arranged at the bottom end of the main shaft (7). A support member (11) is provided on one side of the outer wall, and stabilizing members (12) are provided at both ends of the support member (11); a second pedestal (14) is provided on one side of the bed (1) close to the main shaft (7); a balancing drive system (15) is provided on the top of the second pedestal (14); a stabilizing support plate (16) is provided at the output end of the balancing drive system (15); an adjusting component is provided at the bottom end of the stabilizing support plate (16); balancing wheel frames (17) are provided inside the two sides of the stabilizing support plate (16); a balancing wheel (18) is provided on the balancing wheel frame (17); and a limiting component is provided on the outer wall of the balancing wheel frame (17); The adjustment assembly comprises a mounting plate (24), the mounting plate (24) being arranged at the center position of the bottom end of the stabilizing support plate (16) by means of bolts, a rotatable adjustment member (25) being arranged inside the mounting plate (24), a stud (26) being arranged inside the adjustment member (25), a connecting plate (27) being arranged at the other end of the stud (26), tiltable adjustment inclined plates (28) being arranged on both sides of the connecting plate (27), a connecting member (29) being arranged at the other end of the adjustment inclined plate (28), an adjustment rod (30) being arranged on the outer side of the connecting member (29), an adjustment rod fixing member (31) being arranged at the end of the adjustment rod (30), and the adjustment rod fixing member (31) being connected to the balancing wheel frame (17); A sliding block is provided at the connection position between the adjusting inclined plate (28) and the connecting member (29), and a strip groove matching the sliding block is provided on the connecting member (29); The limiting assembly comprises a fixing member (19), the fixing member (19) being detachably arranged on the outer wall of the balancing wheel frame (17), support plates (20) being arranged on both sides of the outer wall of the fixing member (19), a rotating support member (21) being arranged inside the support plate (20), a positioning wheel (22) being arranged at the bottom end of the rotating support member (21), and a bolt (23) being arranged at a connection position between the support plate (20) and the rotating shaft of the fixing member (19); The length of the outer support plate (20) is greater than the length of the inner support plate (20), the outer rotating support member (21) is vertically arranged, and the inner rotating support member (21) is L-shaped.

2. The superfinishing machine with two superfinishing modes of linear superfinishing and circular superfinishing according to claim 1, characterized in that: The disk (9) is provided with a "T"-shaped slot, the slot being an inverted "T"-shaped slot, a matching insert block being provided inside the slot, and the insert block being connected to the support block (10).

3. The superfinishing machine with two superfinishing modes of linear superfinishing and circular superfinishing according to claim 1, characterized in that: The support member (11) is provided with a screw rod for connecting to the stabilizing member (12); the connection position between the screw rod and the stabilizing member (12) is a bare rod; the top outer wall of the stabilizing member (12) is provided with a thread; the stabilizing member (12) is provided with a nut; and the interior of the stabilizing member (12) is provided with a strip-shaped slide groove for adjusting the position on the support member (11).

4. The superfinishing machine with two superfinishing modes of linear superfinishing and arc superfinishing according to claim 1, characterized in that: An annular groove is provided inside the mounting plate (24), and a rotatable annular rotation limiting plate is provided inside the annular groove, wherein the annular rotation limiting plate is connected to the adjusting member (25).

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