Integrated grinding device for inner ring and outer ring of train hub bearing

Abstract

The invention relates to the technical field of bearing polishing, in particular to a train hub bearing inner and outer ring integrated polishing device which comprises a rack, a conveying table is installed on one side of the top of the rack, a plurality of clamping type rotating mechanisms and adjusting type stepping feeding mechanisms are installed on the rack at equal intervals, and a top plate is connected to the rack through a lifting machine; a grinding mechanism is arranged on the top plate; according to the automatic multi-station grinding device, stepping multi-station automatic feeding treatment is conducted on the train hub bearing through the H-shaped plate in lifting motion in combination with the adjustable stepping feeding mechanism, automatic feeding and discharging type step-by-step comprehensive grinding treatment is achieved in combination with the multi-station L-shaped grinding blocks with different roughness, and the grinding efficiency and quality are improved; and besides, a clamping type rotating mechanism is linked, stable switching treatment of inner clamping and outer clamping is achieved, the problem that the train hub bearing topples over in the conveying process, and later grinding machining is not facilitated is solved, and the train hub bearings of different sizes can be adaptively supported, clamped and machined.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing grinding, and particularly to an integrated grinding device for the inner and outer rings of a train wheel hub bearing. Background Art

[0002] The wheel hub bearing is a key component between the train wheel and the axle. Its main function is to support the wheel and reduce friction to ensure the smooth operation of the train. The wheel hub bearing needs to bear radial loads (vehicle weight) and axial loads (such as lateral forces during steering), and transmit torque.

[0003] For example, a rust removal and grinding machine for an automotive wheel hub bearing with a publication number of CN106965066A grinds the bearing by sleeving it on the output shaft of a motor with a fixed size. Although it can complete the grinding treatment of the bearing, it can only adapt to the grinding treatment of the outer surface of a single specification bearing, and cannot comprehensively and efficiently grind the inner and outer surfaces and end faces of bearings of different specifications. Moreover, the feeding and grinding of the bearing also require the use of multiple shock-absorbing blocks, which increases the complexity of the grinding process and further reduces the feeding and discharging efficiency of the device, making it difficult to achieve the effect of automatic feeding and discharging and comprehensive and efficient grinding treatment. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated grinding device for the inner and outer rings of a train wheel hub bearing to solve the above-mentioned technical defects.

[0005] The purpose of the present invention can be achieved through the following technical solutions: An integrated grinding device for the inner and outer rings of a train wheel hub bearing includes a frame. On one side of the top of the frame, a conveying table is installed. A plurality of clamping type rotating mechanisms and adjustable step feeding mechanisms are equidistantly installed on the frame. The frame is connected to a top plate through a lift, and a grinding mechanism is arranged on the top plate;

[0006] The clamping type rotating mechanism includes three groups of elastic clamping wheels. The bottom of the elastic clamping wheels is fixedly connected to a material supporting ring, and an adjusting disc is located below the frame and is used to adjust the distance between the three groups of elastic clamping wheels. The outside of the three groups of elastic clamping wheels is sleeved with a train wheel hub bearing. The adjustable step feeding mechanism includes movable plates on both sides of the train wheel hub bearing. A clamping column is slidably connected to the movable plates. An auxiliary clamping block and two groups of clamping arms are installed on the clamping column. A guiding plate is arranged on the frame to cooperate with the movable plates to drive the clamping column to move.

[0007] Preferably, the elastic clamping wheels are rotatably installed on an I-shaped block slidably connected to the frame. The bottom of the I-shaped block is fixedly connected to a guiding rod one. A rotating rod rotatably connected to the frame is fixedly connected to the adjusting disc. An arc-shaped groove for the guiding rod one to slide is opened on the adjusting disc.

[0008] Preferably, the bottom of the frame is connected with an I-shaped plate through a plurality of lifting electric push rods, and an I-shaped wheel that slides with the corresponding rotating rod is slidably connected to the I-shaped plate. The bottom of the I-shaped wheel is fixedly connected with an upper ratchet wheel, and the bottom of the rotating rod is fixedly connected with a lower ratchet wheel. An inclined groove is formed on the outer circumferential wall of the I-shaped wheel, and a guiding column that slides with the inclined groove is installed on the I-shaped plate.

[0009] Preferably, a plurality of the movable plates are fixedly connected to the lifting plate, and the lifting plate is slidably connected to the I-shaped plate. A spring guide pin is fixedly connected to one side of the movable plate. A notch for the movable plate to pass through is formed on the frame, and a guiding groove for the spring guide pin to slide is formed on the inner side wall of the notch.

[0010] Preferably, a Z-shaped groove is formed on the guiding plate, and a second guiding rod that slides with the Z-shaped groove is fixedly connected to the clamping column.

[0011] Preferably, lower sliding seats are symmetrically and slidably connected to both sides of the top of the frame, and an upper sliding seat fixedly connected to the guiding plate is slidably connected to the top of the lower sliding seat. A locking bolt that abuts against the bottom of the lower sliding seat is threadedly connected to the upper sliding seat.

[0012] Preferably, two groups of linkage columns are arranged at the bottom of the frame. A plurality of cross bars that slide with the linkage columns are fixedly connected to the frame, and a bracket that slides with the corresponding linkage column is fixedly connected to the upper sliding seat.

[0013] Preferably, a linkage gear that rotates with the rotating rod is fixedly connected to the adjusting disc through a torsion spring, and a toothed plate that meshes with the linkage gear is fixedly connected to the linkage column.

[0014] Preferably, a bilateral toothed column is fixedly connected to the auxiliary clamping block. An installation groove for the bilateral toothed column to slide is formed on the clamping column, and an auxiliary spring is fixedly connected between the installation groove and the bilateral toothed column. Incomplete gears fixedly connected to the corresponding clamping arms are rotatably installed on both sides of the clamping column, and the incomplete gears mesh with the bilateral toothed column.

[0015] Preferably, the grinding mechanism includes two groups of movable strips slidably installed at the bottom of the top plate. A plurality of L-shaped grinding blocks are installed on the movable strips through support rods, and the roughnesses of the plurality of L-shaped grinding blocks are different.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The present invention drives the lifting plate carrying the movable plate to rise by the I-type plate, firstly causes the two groups of clamping columns to move relative to each other, and combines with the auxiliary spring and the auxiliary clamping block to realize preliminary anti-bias centering clamping of the train wheel hub bearing before lifting and conveying, and links the two groups of clamping arms to rotate relative to each other for stable clamping and conveying, which can effectively avoid the relative movement of the elastic clamping wheel, resulting in the train wheel hub bearing being separated from a certain supporting ring and being in a tilted state, making it difficult to stably convey and horizontally place the bearing for grinding in the later stage; then causes the movable plate to carry the stably clamped train wheel hub bearing to move horizontally, realizes multi-station automatic feeding processing, and combines with multiple L-shaped grinding blocks with different roughness to realize automatic loading and unloading type step-by-step comprehensive grinding processing, thereby improving the grinding efficiency and ensuring the grinding quality.

[0018] (2) The present invention also uses the process of the clamping column moving away from the reset by the lowering of the I-type plate, so that the upper ratchet of the I-type wheel is in contact and meshing with the lower ratchet, which simultaneously causes the I-type wheel to drive the rotating rod carrying the adjustment disk to rotate, and drives the torsion spring to twist and deform, so that the three sets of elastic clamping wheels move away from each other, achieving the effect of releasing the external centering clamping and automatically switching to the internal clamping. On the contrary, when the I-type plate rises, the torsion spring twisting elastic force causes the rotating rod to reverse and reset, releasing the internal clamping and switching to the external centering clamping and rigid lifting clamping, further avoiding the problem of the train wheel hub bearing tipping over during the switching process between the internal and external clamping, which is not conducive to the subsequent grinding process;

[0019] (3) The present invention also drives the guide plates on both sides to move synchronously relative to or away from each other through the meshing of the linkage gear and the toothed plate when adjusting the position of the upper slide seat, so that the subsequent relative movement of the clamping columns can have an anti-biased centering clamping effect on train hub bearings of different sizes. In addition, the linkage gear combined with the torsion spring drives the rotation of the adjustment disk and synchronously adjusts the initial position of the elastic clamping wheel before clamping, so that the auxiliary support ring before the inner clamping can have an adaptive supporting effect on train hub bearings of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings;

[0021] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0023] Figure 3 It is a schematic diagram of the installation of the clamping type rotating mechanism of the present invention on a frame;

[0024] Figure 4 It is a schematic diagram of the installation of the adjustable stepping feeding mechanism of the present invention on the frame;

[0025] Figure 5It is a schematic structural diagram of the adjustable step feeding mechanism of the present invention;

[0026] Figure 6 It is a schematic installation diagram of the movable plate of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the clamping column of the present invention;

[0028] Figure 8 It is a schematic installation diagram of the guide plate of the present invention;

[0029] Figure 9 It is a schematic structural diagram of the guide groove of the present invention;

[0030] Figure 10 It is a schematic structural diagram of the elastic clamping wheel of the present invention;

[0031] Figure 11 It is a schematic structural diagram of the adjusting disk of the present invention;

[0032] Figure 12 It is a schematic structural diagram of the I-shaped plate of the present invention.

[0033] Legend Explanation:

[0034] 1. Frame; 11. Conveyor table; 12. Lift; 13. Top plate; 14. Lifting electric push rod; 15. I-shaped plate; 16. I-shaped wheel; 17. Oblique groove; 18. Guide post;

[0035] 2. Clamping type rotating mechanism; 21. Elastic clamping wheel; 22. Material supporting ring; 23. Adjusting disk; 24. I-shaped block; 25. Guide rod one; 26. Rotating rod; 27. Arc groove; 28. Torsion spring; 29. Linkage gear;

[0036] 3. Adjustable step feeding mechanism; 31. Movable plate; 32. Clamping column; 33. Auxiliary clamping block; 34. Clamping arm; 35. Guide plate; 36. Lifting plate; 37. Spring guide pin; 38. Guide groove; 39. Z-shaped groove; 310. Guide rod two; 311. Lower sliding seat; 312. Upper sliding seat; 313. Linkage column; 314. Tooth plate; 315. Double-sided tooth column; 316. Auxiliary spring; 317. Incomplete gear;

[0037] 4. Grinding mechanism; 41. Movable strip; 42. L-shaped grinding block. Detailed Implementation Manner

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Embodiment 1: Please refer to Figures 1 - 12 As shown, for the problem that it is impossible to comprehensively and efficiently polish the inner and outer surfaces and end faces of bearings of different specifications in an integrated manner, and it is difficult to achieve the effect of automatic loading and unloading for comprehensive polishing, the following solutions can be adopted to solve the problem;

[0040] In this embodiment, an integrated polishing device for the inner and outer rings of a train wheel hub bearing includes a frame 1. On one side of the top of the frame 1, a conveying table 11 is installed. The conveying table 11 cooperates with the loading robot arm for automatic intermittent loading. On the top of the frame 1, on the side far from the conveying table 11, a guiding chute is provided for the automatic unloading of the train wheel hub bearing after polishing. A plurality of clamping and rotating mechanisms 2 and adjustable step feeding mechanisms 3 are equidistantly installed on the frame 1. The frame 1 is connected to a top plate 13 through a lifter 12, and a polishing mechanism 4 is arranged on the top plate 13;

[0041] The clamping and rotating mechanism 2 includes three groups of elastic clamping wheels 21 for stably clamping and preventing slipping of the train wheel hub bearing. The three groups of elastic clamping wheels 21 are annularly and equidistantly distributed. The bottom of the elastic clamping wheel 21 is fixedly connected to a supporting ring 22. A plurality of anti-slip protrusions (not shown in the figure) are arranged on the top of the supporting ring 22. When the inner ring of the train wheel hub bearing is clamped internally by the three groups of elastic clamping wheels 21, it contacts the anti-slip protrusions on the top of the supporting ring 22, restricting the relative rotation between the inner ring and the outer ring, and cooperating with the two stationary L-shaped polishing blocks 42 to achieve comprehensive polishing;

[0042] And an adjusting disk 23 located below the frame 1 and used to adjust the distance between the three groups of elastic clamping wheels 21. A train wheel hub bearing is sleeved outside the three groups of elastic clamping wheels 21. The adjustable step feeding mechanism 3 includes movable plates 31 located on both sides of the train wheel hub bearing. The movable plates 31 are used to drive the clamping columns 32 to lift and move in multiple horizontal directions. The clamping columns 32 are slidably connected to the movable plates 31, and auxiliary clamping blocks 33 and two groups of clamping arms 34 are installed on the clamping columns 32;

[0043] The two groups of clamping columns 32 move relative to each other. First, the auxiliary clamping block 33 is used to initially prevent deviation and center the clamping of the train wheel hub bearing before lifting and conveying. Then, the two groups of clamping arms 34 are linked to rotate relative to each other for stable clamping and conveying. A guiding plate 35 is provided on the frame 1 to cooperate with the movable plate 31 to drive the movement of the clamping column 32. When the movable plate 31 drives the clamping column 32 to move upward, the guiding plate 35 causes the clamping column 32 to move in the direction close to the train wheel hub bearing.

[0044] The elastic clamping wheel 21 is rotatably installed on the I-shaped block 24 that is slidably connected to the frame 1. An I-shaped groove adapted to the I-shaped block 24 is formed on the frame 1. A rotary motor for driving the corresponding elastic clamping wheel 21 to rotate is installed on one of the I-shaped blocks 24 by bolts.

[0045] And a guiding rod one 25 is fixedly connected to the bottom of the I-shaped block 24. A rotating rod 26 rotatably connected to the frame 1 is fixedly connected to the adjusting disc 23. An arc-shaped groove 27 for sliding the guiding rod one 25 is formed on the adjusting disc 23. By rotating the adjusting disc 23 and using the guiding of the arc-shaped groove 27 on the guiding rod one 25, the multiple groups of elastic clamping wheels 21 move relative to each other or away from each other, realizing the internal clamping and fixing of the train wheel hub bearing. A roller cooperating with the arc-shaped groove 27 is installed on the guiding rod one 25.

[0046] The bottom of the frame 1 is connected to an I-shaped plate 15 through a plurality of lifting electric push rods 14. And an I-shaped wheel 16 that slides with the corresponding rotating rod 26 is slidably connected to the I-shaped plate 15. An upper ratchet wheel is fixedly connected to the bottom of the I-shaped wheel 16, and a lower ratchet wheel is fixedly connected to the bottom of the rotating rod 26. During the upward movement of the I-shaped plate 15, the bottom of the I-shaped wheel 16 is separated from the lower ratchet wheel. Due to the self-weight of the I-shaped wheel 16, the upper end surface inside the I-shaped wheel 16 comes into contact with the top of the I-shaped plate 15.

[0047] An inclined groove 17 is formed on the circumferential outer wall of the I-shaped wheel 16. A guiding column 18 that slides with the inclined groove 17 is installed on the I-shaped plate 15. A through groove for sliding the I-shaped wheel 16 is formed on the I-shaped plate 15. The guiding column 18 is installed on the inner wall of the through groove. A roller cooperating with the inclined groove 17 is installed on the guiding column 18. When the I-shaped plate 15 drives the I-shaped wheel 16 to move downward, the upper ratchet wheel at the bottom of the I-shaped wheel 16 contacts and meshes with the lower ratchet wheel on the rotating rod 26, and restricts the downward movement of the I-shaped wheel 16.

[0048] As the I-shaped plate 15 continues to move downward, and with the guiding of the inclined groove 17 on the I-shaped wheel 16 and the guiding column 18, the I-shaped wheel 16 drives the rotating rod 26 to rotate, causing the rotating rod 26 to drive the adjusting disc 23 to rotate. Through the guiding of the arc-shaped groove 27 on the adjusting disc 23 and the guiding rod one 25, the three groups of elastic clamping wheels 21 move away from each other, automatically completing the internal clamping and fixing of the train wheel hub bearing, and restricting the relative rotation between the inner ring and the outer ring through the multiple anti-slip protrusions on the top of the material supporting ring 22.

[0049] A plurality of movable plates 31 are fixedly connected to the lifting plate 36, and the lifting plate 36 is slidably connected to the I-shaped plate 15. When the lifting electric push rod 14 drives the I-shaped plate 15 to lift, it can synchronously carry the lifting plate 36 to move downward, and avoid interfering with the horizontal sliding of the lifting plate 36;

[0050] A spring guide pin 37 is fixedly connected to one side of the movable plate 31. A notch for the movable plate 31 to pass through is formed on the frame 1. A guide groove 38 for sliding with the spring guide pin 37 is formed on the inner side wall of the notch. The guide groove 38 includes a plurality of vertically arranged grooves at equal intervals, and upper inclined grooves and lower inclined grooves parallel to each other are communicated between the vertical grooves. Guide blocks are fixedly connected above the lowest point of the upper inclined groove and below the highest point of the lower inclined groove inside the vertical groove. A roller cooperating with the guide groove 38 is installed on the spring guide pin 37;

[0051] The conveying table 11 intermittently conveys the train wheel hub bearings until the train wheel hub bearings move between the two groups of auxiliary clamping blocks 33. The lifting electric push rod 14 drives the I-shaped plate 15 to carry the lifting plate 36 to move upward. When the lifting plate 36 carries the plurality of movable plates 31 and the clamping columns 32 to rise, the spring guide pin 37 on the movable plate 31 first moves in the vertical groove;

[0052] And the two groups of clamping columns 32 move relatively, and after clamping and lifting the train wheel hub bearings until the train wheel hub bearings are higher than the elastic clamping wheels 21, the spring guide pin 37 enters the upper inclined groove through the upper guide block in the vertical groove, promoting the movable plate 31 to rise and simultaneously move horizontally, promoting the train wheel hub bearings to move above the three groups of elastic clamping wheels 21, and the spring guide pin 37 enters the top of the adjacent vertical groove;

[0053] The lifting plate 36 moves downward, promoting the spring guide pin 37 to move downward in the adjacent vertical groove, driving the train wheel hub bearings to be sleeved outside the three groups of elastic clamping wheels 21 and placed on the material supporting ring 22 of the elastic clamping wheels 21. And the two groups of clamping columns 32 move away from each other, causing the auxiliary clamping blocks 33 to separate from the train wheel hub bearings. Then, through the guidance of the spring guide pin 37 by the lower guide block in the vertical groove, it enters the lower inclined groove, promoting the horizontal reset movement of the movable plate 31, and preparing for the conveying of a train wheel hub bearing.

[0054] A Z-shaped groove 39 is formed on the guide plate 35. A second guide rod 310 sliding with the Z-shaped groove 39 is fixedly connected to the clamping column 32. Through the guidance of the Z-shaped groove 39 on the second guide rod 310, when the movable plate 31 drives the clamping column 32 to lift, the relative or separating movement is realized, as well as the stable clamping effect during the continuous rising process.

[0055] The auxiliary clamping block 33 is fixedly connected with a bilateral tooth column 315. An installation groove for the bilateral tooth column 315 to slide is formed on the clamping column 32, and an auxiliary spring 316 is fixedly connected between the installation groove and the bilateral tooth column 315. The two groups of clamping columns 32 perform relative movement through the guiding of the guiding rod 25 by the Z-shaped groove 39 on the guiding plate 35, so that the auxiliary clamping block 33 contacts the train wheel hub bearing. Combining with the compression elastic force of the auxiliary spring 316 for preliminary anti-deviation centering clamping, it can effectively avoid the relative movement of the elastic clamping wheel 21, resulting in the separation of the train wheel hub bearing from a certain material supporting ring 22 and being in a toppled state, which is difficult for subsequent stable conveying and horizontal placement for grinding;

[0056] Incomplete gears 317 fixedly connected with the corresponding clamping arms 34 are rotatably installed on both sides of the clamping column 32, and the incomplete gears 317 are meshed with the bilateral tooth column 315. With the relative movement of the two groups of clamping columns 32 carrying the incomplete gears 317, combined with the meshing of the bilateral tooth column 315 on the auxiliary clamping block 33 and the incomplete gears 317 on both sides, the clamping arms 34 on both sides of the clamping column 32 rotate relatively, rigidly clamp the train wheel hub bearing, and maintain the rigid clamping state and carry the train wheel hub bearing to move upward with the rising of the movable plate 31.

[0057] The grinding mechanism 4 includes two groups of movable strips 41 slidably installed at the bottom of the top plate 13, and a plurality of L-shaped grinding blocks 42 are installed on the movable strips 41 through support rods. The L-shaped grinding blocks 42 on one movable strip 41 are installed forward, that is, the horizontal section is located below, for grinding the outer surface and the bottom end face of the bearing. The L-shaped grinding blocks 42 on the other movable strip 41 are installed upside down, that is, the horizontal section is located above, for grinding the inner surface and the top end face of the bearing, so as to comprehensively grind the train wheel hub bearing. The L-shaped grinding blocks 42 are installed on the support rods through bolts, which is convenient for replacing the worn or train wheel hub bearings with different thicknesses;

[0058] Moreover, the roughnesses of the plurality of L-shaped grinding blocks 42 are different. In the direction from the conveying table 11 to the material guiding chute, the roughness of the L-shaped grinding blocks 42 gradually decreases. Through the multi-station clamping type rotating mechanism 2 and the adjustable stepping feeding mechanism 3, multi-station synchronous grinding treatment is realized, and combined with the L-shaped grinding blocks 42 with various roughnesses, automatic loading and unloading type step-by-step comprehensive grinding treatment is realized, improving the grinding efficiency while ensuring the grinding quality;

[0059] An adjusting electric push rod for driving the movable strip 41 to move is installed on the top plate 13, which is used to realize the contact between the L-shaped grinding block 42 and the train wheel hub bearing before grinding and the separation from the train wheel hub bearing after grinding, and then cooperate with the adjustable stepping feeding mechanism 3 for multi-station automatic feeding treatment.

[0060] Embodiment 2: Please refer to Figures 3 - 8 And Figure 11As shown in the figure, for the problems that it is impossible to comprehensively and integrally grind the train wheel hub bearings of different specifications, and it is difficult to synchronously and equidistantly adjust the positions of the two groups of guide plates, resulting in the deviation of centering clamping and affecting the grinding quality, the following solutions can be adopted;

[0061] In this embodiment, sliding seats 311 are symmetrically and slidably connected to both sides of the top of the frame 1, and an upper sliding seat 312 fixedly connected to the guide plate 35 is slidably connected to the top of the sliding seat 311. Slide rails for the upper sliding seat 312 and the sliding seat 311 to slide are installed on both the frame 1 and the sliding seat 311. The sliding setting of the sliding seat 311 is used to prevent interference with the horizontal movement of the guide plate 35 following the clamping column 32. The sliding of the upper sliding seat 312 is used to adjust the initial position of the auxiliary clamping block 33, so as to feed and clamp the train wheel hub bearings of different specifications. A locking bolt is threadedly connected to the upper sliding seat 312 and is located at the bottom of the sliding seat 311, and is used to lock the position of the upper sliding seat 312 after adjustment.

[0062] Two linkage columns 313 are arranged at the bottom of the frame 1. A plurality of cross bars for the linkage columns 313 to slide are fixedly connected to the frame 1. A bracket for the corresponding linkage column 313 to slide is fixedly connected to the upper sliding seat 312. When adjusting the positions of the two groups of upper sliding seats 312, the distance between the two groups of linkage columns 313 is synchronously adjusted through the bracket.

[0063] A linkage gear 29 rotatable with the rotating rod 26 is fixedly connected to the adjusting disc 23 through a torsion spring 28. A toothed plate 314 meshing with the linkage gear 29 is fixedly connected to the linkage column 313. Through the meshing of the toothed plate 314 and the linkage gear 29, when the rotating rod 26 drives the adjusting disc 23 to rotate, the torsion spring 28 is distorted, so that when the I-shaped plate 15 drives the lifting plate 36 to rise, the rotating rod 26 is driven to rotate reversely and reset by the distorted elastic force of the torsion spring 28, resulting in the relative movement of the three elastic clamping wheels 21;

[0064] In addition, through the meshing of the linkage gear 29 and the toothed plate 314, when adjusting the position of the upper sliding seat 312, the two side guide plates 35 are driven to move relatively or away from each other synchronously, so that the subsequent relative movement of the clamping columns 32 can achieve the effect of anti-deviation centering clamping on the train wheel hub bearings of different sizes, avoiding the problem that the centering clamping is deviated and affecting the grinding quality, and the linkage gear 29 combines with the torsion spring 28 to drive the rotation of the adjusting disc 23, synchronously adjusting the initial position before clamping inside the elastic clamping wheels 21, so that the auxiliary supporting ring 22 before internal clamping can adaptively support the train wheel hub bearings of different sizes.

[0065] Embodiment 3: Please refer to Figures 1 - 12 As shown in the figure, the present invention also proposes a use method of an integrated grinding device for the inner and outer rings of train wheel hub bearings, including the following steps:

[0066] Step 1: The loading robotic arm intermittently conveys the train wheel hub bearings in combination with the conveying table 11 until a train wheel hub bearing moves between two groups of auxiliary clamping blocks 33. The lifting electric push rod 14 drives the I-shaped plate 15 to carry the lifting plate 36 to move upward. When the lifting plate 36 carries multiple movable plates 31 and clamping columns 32 upward, the spring guide pins 37 on the movable plates 31 first move in the vertical grooves, and the two groups of clamping columns 32 perform relative movements under the guidance of the Z-shaped grooves 39 on the guide plate 35 for the guide rod 25, so that the auxiliary clamping blocks 33 contact the train wheel hub bearings, and perform preliminary anti-offset centering clamping in combination with the compression elastic force of the auxiliary spring 316;

[0067] Step 2: Along with the relative movement of the two groups of clamping columns 32 carrying the incomplete gears 317, in combination with the double-sided tooth columns 315 on the auxiliary clamping blocks 33, the clamping arms 34 on both sides of the clamping columns 32 rotate relatively, rigidly clamp the train wheel hub bearings, and maintain the rigid clamping state and carry the train wheel hub bearings to move upward along with the upward movement of the movable plates 31 until the bottom of the train wheel hub bearing is higher than the top of the elastic clamping wheels 21. The spring guide pins 37 enter the upper inclined grooves through the upper guide blocks in the vertical grooves, so that while the movable plates 31 rise, they move horizontally synchronously, so that the train wheel hub bearings move above the three groups of elastic clamping wheels 21, and the spring guide pins 37 enter the top of the adjacent vertical grooves;

[0068] Step 3: The lifting electric push rod 14 drives the lifting plate 36 to move downward through the I-shaped plate 15, so that the spring guide pins 37 move downward in the adjacent vertical grooves, driving the rigidly clamped train wheel hub bearings to be sleeved outside the three groups of elastic clamping wheels 21 and placed on the material supporting rings 22 of the elastic clamping wheels 21. During this process, along with the downward movement of the clamping columns 32, in combination with the guidance of the Z-shaped grooves 39 and the guide rod 310, the clamping arms 34 and the auxiliary clamping blocks 33 are separated from the train wheel hub bearings in sequence, and then the spring guide pins 37 enter the lower inclined grooves through the guidance of the lower guide blocks in the vertical grooves, so that the movable plates 31 move horizontally to reset;

[0069] Step 4: During the process of the lifting plate 36 carrying the movable plates 31 to move downward, after the train wheel hub bearings are placed on the material supporting rings 22, the I-shaped plate 15 carries the I-shaped wheel 16 to move. The upper ratchet wheel at the bottom of the I-shaped wheel 16 contacts and meshes with the lower ratchet wheel on the rotating rod 26, and restricts the downward movement of the I-shaped wheel 16. Along with the continuous downward movement of the I-shaped plate 15 and the guidance of the inclined grooves 17 on the I-shaped wheel 16 and the guide posts 18, the I-shaped wheel 16 drives the rotating rod 26 to rotate, the rotating rod 26 drives the adjusting disc 23 to rotate, and drives the torsion spring 28 to be distorted. Through the guidance of the arc-shaped grooves 27 on the adjusting disc 23 and the guide rod 25, the three groups of elastic clamping wheels 21 move away from each other, internally clamp the train wheel hub bearings, and at the same time complete the reset of the movable plates 31 and the clamping columns 32;

[0070] When the I-shaped plate 15 drives the lifting plate 36 to rise, the torsional elastic force of the torsion spring 28 causes the rotating rod 26 to rotate reversely and reset, resulting in the relative movement of the three groups of elastic clamping wheels 21, releasing the internal clamping while performing external preliminary centering clamping and rigid lifting clamping;

[0071] Step Five: After the internal clamping of the train wheel hub bearing is completed, the elevator 12 drives the top plate 13 to move downward until the top height of the horizontal section of the forward L-shaped grinding block 42 is flush with the bottom height of the train wheel hub bearing. By adjusting the electric push rod to drive the movable strip 41 to move, the forward L-shaped grinding block 42 is urged to contact the annular inner and outer walls and both end faces of the inverted L-shaped grinding block 42 and the train wheel hub bearing. The rotating motor drives the corresponding elastic clamping wheel 21 to rotate, causing the internally clamped train wheel hub bearing to rotate. In combination with the L-shaped grinding block 42 in contact therewith, the primary rough grinding treatment is completed. Then, through the clamping type rotating mechanism 2 and the adjustable step feeding mechanism 3, the train wheel hub bearing is conveyed to the next grinding station and the train wheel hub bearing to be ground is loaded. In combination with multiple L-shaped grinding blocks 42 with different roughnesses, and repeating the loading, conveying and grinding treatments, the step-by-step grinding treatment of automatic loading and unloading is completed.

[0072] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An integrated grinding device for inner and outer rings of a train wheel hub bearing, comprising a frame (1), a conveying platform (11) being installed on one side of the top of the frame (1), characterized in that: A plurality of clamping-type rotating mechanisms (2) and adjustable step-feeding mechanisms (3) are equidistantly mounted on the frame (1); a top plate (13) is connected to the frame (1) via a lift (12); and a grinding mechanism (4) is disposed on the top plate (13); The clamping rotating mechanism (2) comprises three groups of elastic clamping wheels (21), and the bottom of the elastic clamping wheels (21) is fixedly connected to a supporting ring (22), and an adjusting plate (23) located below the frame (1) and used to adjust the spacing between the three groups of elastic clamping wheels (21). The outer sides of the three groups of elastic clamping wheels (21) are sleeved with train wheel hub bearings. The adjustable stepping feeding mechanism (3) comprises a movable plate (31) located on both sides of the train wheel hub bearing, and the movable plate (31) is slidably connected to a clamping column (32), and the clamping column (32) is installed with an auxiliary clamping block (33) and two groups of clamping arms (34). The frame (1) is provided with a guide plate (35) that cooperates with the movable plate (31) to drive the clamping column (32) to move.

2. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 1, characterized in that: The elastic clamping wheel (21) is rotatably mounted on a profile block (24) slidably connected to the frame (1), and a guide rod (25) is fixedly connected to the bottom of the profile block (24). A rotating rod (26) rotatably connected to the frame (1) is fixedly connected to the adjusting disk (23), and an arc groove (27) is provided on the adjusting disk (23) for sliding with the guide rod (25).

3. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 2, characterized in that: The bottom of the frame (1) is connected to an I-shaped plate (15) via a plurality of lifting electric push rods (14), and an I-shaped wheel (16) slidingly connected to the I-shaped plate (15) is slidably connected to slide with a corresponding rotating rod (26), an upper ratchet is fixedly connected to the bottom of the I-shaped wheel (16), a lower ratchet is fixedly connected to the bottom of the rotating rod (26), an oblique groove (17) is provided on the annular outer wall of the I-shaped wheel (16), and a guide column (18) sliding with the oblique groove (17) is installed on the I-shaped plate (15).

4. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 3, characterized in that: The plurality of movable plates (31) are all fixedly connected to the lifting plate (36), and the lifting plate (36) is slidably connected to the I-shaped plate (15); a spring guide pin (37) is fixedly connected to one side of the movable plate (31); a slot for the movable plate (31) to pass through is provided on the frame (1); and a guide groove (38) for sliding with the spring guide pin (37) is provided on the inner side wall of the slot.

5. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 1, characterized in that: The guide plate (35) is provided with a Z-shaped groove (39), and the clamping column (32) is fixedly connected with a second guide rod (310) that slides with the Z-shaped groove (39).

6. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 2, characterized in that: The lower slide seats (311) are symmetrically slidably connected to the two sides of the top of the frame (1), and the top of the lower slide seat (311) is slidably connected to an upper slide seat (312) fixedly connected to the guide plate (35), and the upper slide seat (312) is threadedly connected to a locking bolt at the bottom of the lower slide seat (311).

7. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 6, characterized in that: Two groups of linkage columns (313) are arranged at the bottom of the frame (1); a plurality of cross bars that slide with the linkage columns (313) are fixedly connected to the frame (1); and brackets that slide with corresponding linkage columns (313) are fixedly connected to the upper slide seat (312).

8. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 7, characterized in that: The adjusting disk (23) is fixedly connected to a linkage gear (29) that rotates with the rotating rod (26) via a torsion spring (28), and the linkage column (313) is fixedly connected to a toothed plate (314) that meshes with the linkage gear (29).

9. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 1, characterized in that: The auxiliary clamping block (33) is fixedly connected with a double-sided tooth column (315), the clamping column (32) is provided with a mounting groove that slides with the double-sided tooth column (315), and an auxiliary spring (316) is fixedly connected between the mounting groove and the double-sided tooth column (315), and incomplete gears (317) fixedly connected to the corresponding clamping arms (34) are rotatably installed on both sides of the clamping column (32), and the incomplete gears (317) are meshed with the double-sided tooth columns (315).

10. The integrated grinding device for inner and outer rings of a train hub bearing according to claim 1, characterized in that: The grinding mechanism (4) comprises two groups of movable bars (41) slidably mounted on the bottom of the top plate (13), and a plurality of L-shaped grinding blocks (42) are mounted on the movable bars (41) via supporting rods, and the roughness of the plurality of L-shaped grinding blocks (42) is different.

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