An automated hub bearing flange raceway grinding machine

Abstract

The present invention discloses an automatic hub bearing flange raceway grinding machine, which relates to the technical field of flange processing. The present invention includes a grinding machine body, on the top of which a hydraulic press is fixedly installed. The driving end of the hydraulic press is fixedly installed with a lifting plate. On the top of the grinding machine body, a placing table is fixedly installed. An outer ring flange is placed on the top of the placing table, and two coaxially arranged raceway grooves are provided on the inner wall of the outer ring flange. By setting strengthening buckles, before processing, the transposition linear module drives the small grinding machine to move to one side of the strengthening assembly component, so that the strengthening assembly component assembles the two strengthening buckles at the bottom end of the suspension bracket and the small grinding machine, protects the connection between the small grinding machine and the suspension bracket, fixes the angle and position of the small grinding machine, strengthens the structural strength of the rotating joint of the small grinding machine, and prevents structural problems such as loosening and shaking during the grinding process.

Description

Technical Field

[0001] The present invention relates to the technical field of flange processing, and particularly relates to an automatic hub bearing flange raceway grinding machine. Background Art

[0002] Automobile hub bearings are important rolling bearings for automobiles, which are installed inside automobile wheels. Their main function is to bear and provide precise guidance for the rotation of the wheels. They bear both axial loads and radial loads and are very important components. A hub bearing consists of an outer ring, roller bearings, an inner ring, and a cage. Its working principle is similar to that of ordinary bearings, which is to use steel balls to roll in the inner ring, outer ring, or flange raceway to bear and rotate relatively. Automobile hub bearings have gone through the first-generation double-row angular contact ball bearings, the second-generation double-row angular contact ball bearing assemblies with flanges on the outer ring, and have now developed to the current third-generation double-row angular contact ball bearing assemblies with flanges on both the inner and outer rings.

[0003] Both the inner and outer flange of the third-generation hub bearing have contact ball raceways. Among them, the raceway of the inner flange can be machined by a traditional grinding wheel grinding machine, while the raceway of the outer ring is located on the inner wall of the flange, and a small grinding wheel needs to be inserted into the flange for grinding. Since the shapes of the inner and outer raceways of the flanges of each type of bearing are slightly different, when grinding the outer raceway, the angle of the grinding wheel needs to be adjusted. This results in a rotating joint with low structural strength between the grinding wheel mechanism and the main body of the grinding machine, and it is easy to have structural problems such as loosening and shaking during the grinding process, affecting the grinding accuracy. Therefore, an automatic hub bearing flange raceway grinding machine is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that when grinding the raceway of the outer flange of the current hub bearing, the angle of the grinding wheel needs to be adjusted, which results in a rotating joint with low structural strength between the grinding wheel mechanism and the main body of the grinding machine, and it is easy to have structural problems such as loosening and shaking during the grinding process, affecting the grinding accuracy. The present invention provides an automatic hub bearing flange raceway grinding machine.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0006] An automatic hub bearing flange raceway grinding machine includes a grinding machine body. A hydraulic press is fixedly installed at the top of the grinding machine body. A lifting plate is fixedly installed at the driving end of the hydraulic press. A placement table is fixedly installed at the top of the grinding machine body. An outer ring flange is placed on the top of the placement table. Two coaxially arranged raceway grooves are provided on the inner wall of the outer ring flange. A plurality of flange holes are formed on the circumferential side of the outer ring flange. A steering plate is rotatably installed at the bottom of the lifting plate. A steering motor is fixedly installed at the top of the lifting plate. The output shaft of the steering motor is drivingly connected to the steering plate. A horizontally arranged transposition linear module is fixedly installed at the bottom of the steering plate. A suspension bracket is fixedly installed at the bottom of the driving end of the transposition linear module. A horizontally arranged steering electric push rod is fixedly installed at the top of the suspension bracket. A small grinding machine is rotatably installed at the bottom of the suspension bracket. A diagonally arranged steering telescopic rod is rotatably installed at the telescopic end of the steering electric push rod. The telescopic end of the steering telescopic rod is rotatably installed on one side of the small grinding machine. Two symmetrical strengthening buckles are sleeved on the small grinding machine. Limiting grooves adapted to the suspension bracket and the small grinding machine are respectively formed on the inner walls of the strengthening buckles;

[0007] Two strengthening assembly components for automatically assembling the strengthening buckles on the small grinding machine are arranged at the top of the grinding machine body. The two strengthening assembly components are distributed on both sides of the placement table.

[0008] Further, the strengthening assembly component includes an X-axis linear module fixedly installed at the top of the grinding machine body. A support frame is fixedly installed at the top of the driving end of the X-axis linear module. A Y-axis bidirectional linear module is fixedly installed at the top of the support frame. Right-angle brackets are fixedly installed at the tops of the two driving ends of the Y-axis bidirectional linear module. A plurality of suspension claws are fixedly installed on one side of each of the two right-angle brackets close to each other. Outer strengthening slots adapted to the suspension claws are respectively formed on the side walls of the strengthening buckles. A first fastening cylinder and a second fastening cylinder are respectively fixedly installed on one side of the two strengthening buckles. A fastening bolt is arranged inside the first fastening cylinder. A fastening screw cylinder adapted to the fastening bolt is arranged inside the second fastening cylinder. A horizontally arranged fastening electric push rod is fixedly installed on the side wall of one of the right-angle brackets. A small screw gun is fixedly installed at the telescopic end of the fastening electric push rod.

[0009] Further, a flower-shaped sleeve is fixedly sleeved at one end of the fastening screw cylinder. A flower-shaped jack adapted to the flower-shaped sleeve is formed inside the second fastening cylinder. The flower-shaped sleeve is inserted inside the flower-shaped jack. A nut is screwed at one end of the second fastening cylinder away from the first fastening cylinder. A guiding screw ring is fixedly installed inside one end of the first fastening cylinder close to the second fastening cylinder. The fastening bolt is screwed inside the guiding screw ring.

[0010] Furthermore, outer strengthening insertion plates are fixedly installed on both sides of the strengthening buckle plates. The outer strengthening insertion plates are adapted to the outer strengthening slots, and multiple outer strengthening insertion plates located on two strengthening buckle plates are arranged in an interleaved manner.

[0011] Furthermore, multiple inner strengthening slots are formed on the inner wall of one of the strengthening buckle plates, and multiple inner strengthening insertion rods adapted to the inner strengthening slots are fixedly installed on the inner wall of the other strengthening buckle plate.

[0012] Furthermore, a disc-shaped tooling is placed on the top of the placement table. A flower-shaped insertion rod is fixedly installed at the bottom of the disc-shaped tooling. A flower-shaped slot adapted to the flower-shaped insertion rod is formed on the top of the placement table. Multiple positioning columns adapted to the flange holes are fixedly installed on the top of the disc-shaped tooling.

[0013] Furthermore, positioning screw rings are screwed on the tops of the positioning columns, and the positioning screw rings are all located on the top of the outer ring flange.

[0014] Furthermore, a conical disc is fixedly installed at the center position of the top of the disc-shaped tooling. Multiple chip discharge holes are formed on the tops of the disc-shaped tooling, the placement table and the grinding machine body. The chip discharge holes are evenly distributed along the axis of the conical disc. A collection box is arranged inside the grinding machine body, and multiple chip discharge holes communicate with the collection box from top to bottom.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. By arranging the strengthening buckle plates in the present invention, before processing, the transposition linear module drives the small grinding machine to move to one side of the strengthening assembly component, so that the strengthening assembly component assembles two strengthening buckle plates at the bottom end of the suspension bracket and the small grinding machine, protects the connection part between the small grinding machine and the suspension bracket, fixes the angle and position of the small grinding machine, strengthens the structural strength of the rotating joint of the small grinding machine, and prevents structural problems such as loosening and shaking during the grinding process.

[0017] 2. By arranging the strengthening assembly component in the present invention, the strengthening assembly component can realize the automatic assembly of the strengthening buckle plates, so that the bottom end of the suspension bracket and the small grinding machine are received in the limiting groove, and the strengthening buckle plates play a role in protecting and strengthening the rotating joints of the suspension bracket and the small grinding machine, avoiding loosening of the joints of the two due to the vibration of grinding, and at the same time fixing and strengthening the angle of the small grinding machine to prevent the small grinding machine from deflecting during the grinding process and affecting the processing quality of the raceway groove.

[0018] 3. The present invention sets two strengthening assembly components, enabling different strengthening buckles to be hung on the two strengthening assembly components. After the first raceway groove is machined, the outer ring flange is flipped. The first strengthening assembly component removes the first set of strengthening buckles. After the angle of the small grinding machine is adjusted, it is moved to the other side. The second strengthening assembly component assembles the second set of strengthening buckles on the small grinding machine, enabling the two strengthening assembly components to respectively process different raceway grooves and provide different strengthening buckles to strengthen the small grinding machine.

[0019] 4. The present invention sets a flower-shaped sleeve and a guiding screw ring, enabling the fastening bolt to be removed from the guiding screw ring after the set of fastening bolts and fastening screw barrels are used multiple times, then unscrewing the nut and taking out the fastening screw barrel to replace the fastening bolt and the fastening screw barrel, preventing the two from affecting the fastening of the strengthening buckle due to wear. At the same time, when installing the fastening bolt, one end of the fastening bolt can be screwed into the guiding screw ring until it is flush with the end face of the first fastening barrel, so that the head positions of the new and old fastening bolts are consistent, facilitating the docking of the small screwdriver gun with the fastening bolt.

[0020] 5. The present invention sets an outer strengthening slot and a fastening screw barrel, enabling the mutually staggered outer strengthening slots to make the two strengthening buckles different, facilitating assembly on different right-angle frames and docking with the small screwdriver gun. At the same time, when the two strengthening buckles are assembled on the small grinding machine, the outer strengthening plates of the two groups will respectively insert into the opposite outer strengthening slots to limit the two strengthening buckles, which not only facilitates the screwing connection between the fastening bolt and the fastening screw barrel but also can improve the connection strength between the two strengthening buckles from the outside.

[0021] 6. The present invention sets a disc-shaped tooling. Place the disc-shaped tooling on the placement table, align the flower-shaped insertion rod at the bottom of the disc-shaped tooling with the flower-shaped slot at the top of the placement table, and then align the flange holes on the outer ring flange with multiple positioning posts to position the outer ring flange. When the small grinding machine processes the raceway groove, a vertically downward component force will be applied to the outer ring flange, pressing the outer ring flange tightly on the disc-shaped tooling. The modularization of the tooling for the outer ring flange can be achieved through the disc-shaped tooling, so that the corresponding outer ring flange can be replaced for different outer ring flanges.

[0022] 7. The present invention sets a positioning screw ring. After placing the outer ring flange on the top of the disc-shaped tooling, at least one positioning screw ring can be screwed onto the positioning post, so that the positioning screw ring is locked on the top of the outer ring flange. When the small grinding machine processes the raceway groove, the positioning screw ring can cooperate with the vertically downward component force to prevent the disc-shaped tooling from moving up and down, affecting the processing quality of the raceway groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic three-dimensional structure diagram of the outer ring flange of the present invention;

[0025] Figure 3 It is a schematic three-dimensional structure diagram of the cooperation between the lifting disc and the small grinding machine of the present invention;

[0026] Figure 4 It is a schematic three-dimensional structure diagram of the cooperation between the small grinding machine and the strengthening buckle plate of the present invention;

[0027] Figure 5 It is a schematic three-dimensional structure diagram of the strengthened assembly component of the present invention;

[0028] Figure 6 It is the present invention Figure 5 Schematic diagram of the structure at position A;

[0029] Figure 7 It is a schematic three-dimensional structure diagram of the strengthening buckle plate of the present invention;

[0030] Figure 8 It is a schematic three-dimensional structure diagram of the fastening screw barrel of the present invention;

[0031] Figure 9 It is a schematic three-dimensional structure diagram of the top of the placement table of the present invention;

[0032] Figure 10 It is a schematic three-dimensional structure diagram of the top of the disc-shaped tooling of the present invention;

[0033] Figure 11 It is a schematic three-dimensional structure diagram of the bottom of the disc-shaped tooling of the present invention;

[0034] Reference numerals: 1. Grinding machine body; 2. Hydraulic press; 3. Lifting disc; 4. Placement table; 5. Outer ring flange; 501. Raceway groove; 502. Flange hole; 6. Steering wheel; 7. Steering motor; 8. Transposition linear module; 9. Suspension frame; 10. Steering electric push rod; 11. Small grinding machine; 12. Steering telescopic rod; 13. Strengthening buckle plate; 1301. Limit groove; 1302. Outer strengthening slot; 1303. Inner strengthening slot; 14. X-axis linear module; 15. Support frame; 16. Y-axis bidirectional linear module; 17. Right-angle frame; 18. First fastening cylinder; 19. Second fastening cylinder; 20. Fastening bolt; 21. Fastening screw barrel; 22. Fastening electric push rod; 23. Small screw gun; 24. Flower-shaped sleeve; 25. Nut; 26. Guide screw ring; 27. Outer strengthening insertion plate; 28. Inner strengthening insertion rod; 29. Disc-shaped tooling; 2901. Chip removal hole; 30. Flower-shaped insertion rod; 31. Positioning column; 32. Positioning screw ring; 33. Conical disc; 34. Suspension claw. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0037] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "above", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0039] As Figures 1 to 11 shown, an automatic hub bearing flange raceway grinding machine includes a grinding machine body 1. As Figure 1 shown, a hydraulic press 2 is fixedly installed on the top of the grinding machine body 1. A lifting plate 3 is fixedly installed at the driving end of the hydraulic press 2. A placement table 4 is fixedly installed on the top of the grinding machine body 1. An outer ring flange 5 is placed on the top of the placement table 4. As Figure 2 shown, two coaxially centered raceway grooves 501 are provided on the inner wall of the outer ring flange 5. A plurality of flange holes 502 are formed on the circumferential side of the outer ring flange 5. As Figure 3As shown, a steering wheel 6 is rotatably installed at the bottom of the lifting disc 3, and a steering motor 7 is fixedly installed at the top of the lifting disc 3. The output shaft of the steering motor 7 is drivingly connected to the steering wheel 6. In this embodiment, a gear set is arranged inside the lifting disc 3, and the output shaft of the steering motor 7 is drivingly connected to the steering wheel 6 through the gear set. A horizontally arranged transposition linear module 8 is fixedly installed at the bottom of the steering wheel 6. The bottom of the driving end of the transposition linear module 8 is fixedly installed with a suspension bracket 9. In this embodiment, the transposition linear module 8 can adopt a common screw-type linear module on the market, so that the transposition linear module 8 has the function of self-locking and limiting the suspension bracket 9. A horizontally arranged steering electric push rod 10 is fixedly installed at the top end of the suspension bracket 9. A small grinding machine 11 is rotatably installed at the bottom end of the suspension bracket 9. The telescopic end of the steering electric push rod 10 is rotatably installed with an obliquely arranged steering telescopic rod 12. The telescopic end of the steering telescopic rod 12 is rotatably installed on one side of the small grinding machine 11. In this embodiment, the steering electric push rod 10, the small grinding machine 11 and the steering telescopic rod 12 are in the same vertical plane, as Figure 4 shown, two symmetrical reinforcing buckle plates 13 are sleeved on the small grinding machine 11, and limiting grooves 1301 adapted to the suspension bracket 9 and the small grinding machine 11 are respectively formed on the inner walls of the reinforcing buckle plates 13;

[0040] At the top of the grinding machine body 1, there are two strengthening assembly components for automatically assembling the reinforcing buckle plates 13 on the small grinding machine 11, as Figure 1As shown, two strengthened assembly components are distributed on both sides of the placement table 4; specifically, when this automated hub bearing flange raceway grinding machine is in use, the outer ring flange 5 is placed on the placement table 4 and aligned with the lifting plate 3, and then the outer ring flange 5 is fixed. After that, the telescopic movement of the steering electric push rod 10 is controlled according to the specification and shape of the raceway groove 501 to be machined. Then, the small grinding machine 11 is driven to rotate at the bottom of the suspension bracket 9 through the steering telescopic rod 12, and the displacement linear module 8 is controlled to drive the suspension bracket 9 to move horizontally, so as to adjust the angle of the grinding cutter head of the small grinding machine 11 to make it adapt to the position of the preset raceway groove 501. After that, the hydraulic press 2 drives the lifting plate 3 to drive the small grinding machine 11 to descend and gradually extend into the interior of the outer ring flange 5. The small grinding machine 11 drives the cutter head to rotate at a high speed to grind the inner wall of the outer ring flange 5. At the same time, the steering motor 7 drives the steering wheel 6 to rotate along the axis of the outer ring flange 5, so that the cutter head grinds out a circle of raceway grooves 501 on the inner wall of the outer ring flange 5, realizing the automatic processing of the raceway grooves 501. And before processing, the displacement linear module 8 drives the small grinding machine 11 to move to one of the strengthened assembly components, so that the strengthened assembly components assemble two strengthening buckle plates 13 on the bottom end of the suspension bracket 9 and the small grinding machine 11, protect the connection part between the small grinding machine 11 and the suspension bracket 9, fix the angle and position of the small grinding machine 11, strengthen the structural strength of the rotating joint of the small grinding machine 11, and prevent structural problems such as loosening and shaking during the grinding process.

[0041] As Figure 5 shown, the strengthened assembly component includes an X-axis linear module 14 fixedly installed on the top of the grinding machine body 1. The top of the driving end of the X-axis linear module 14 is fixedly installed with a support frame 15. The top of the support frame 15 is fixedly installed with a Y-axis bidirectional linear module 16. The tops of the two driving ends of the Y-axis bidirectional linear module 16 are both fixedly installed with right-angle frames 17. As Figure 6 shown, a plurality of suspension claws 34 are fixedly installed on one side of the two right-angle frames 17 close to each other. As Figure 7 shown, outer strengthening slots 1302 adapted to the suspension claws 34 are formed on the side walls of the strengthening buckle plates 13. In this embodiment, an embedded magnetic attraction plate is arranged inside the right-angle frame 17. The two strengthening buckle plates 13 are hung on the two right-angle frames 17 through the insertion of the suspension claws 34 into the outer strengthening slots 1302 and the magnetic attraction force of the magnetic attraction plate. One side of each of the two strengthening buckle plates 13 is fixedly installed with a first fastening cylinder 18 and a second fastening cylinder 19 respectively. A fastening bolt 20 is arranged inside the first fastening cylinder 18, and a fastening screw cylinder 21 adapted to the fastening bolt 20 is arranged inside the second fastening cylinder 19. As Figure 6As shown, a horizontally arranged fastening electric push rod 22 is fixedly installed on the side wall of one of the right-angle brackets 17, and a small screw gun 23 is fixedly installed at the telescopic end of the fastening electric push rod 22; specifically, by setting the strengthening assembly component, before grinding, the staff hangs the two reinforcing buckle plates 13 that are angle-adapted to the current small grinding machine 11 on the suspension claws 34 on both sides respectively. The transposition linear module 8 drives the small grinding machine 11 to move to one side of the strengthening assembly component. At the same time, the X-axis linear module 14 drives the support frame 15 to carry the Y-axis bidirectional linear module 16 and the right-angle bracket 17 on the top to move synchronously towards the small grinding machine 11, so that the small grinding machine 11 is located between the two reinforcing buckle plates 13. Then, the Y-axis bidirectional linear module 16 drives the two right-angle brackets 17 to approach each other, so that the two reinforcing buckle plates 13 are buckled on the small grinding machine 11. At this time, the first fastening cylinder 18 and the second fastening cylinder 19 are butted against each other. The fastening electric push rod 22 drives the small screw gun 23 to move, so that the front end of the small screw gun 23 is butted against the fastening bolt 20. The small screw gun 23 drives the fastening bolt 20 to rotate. The fastening electric push rod 22 drives the small screw gun 23 to move synchronously, so that the front end of the fastening bolt 20 is screwed into the fastening screw cylinder 21, locking the two reinforcing buckle plates 13 on the suspension frame 9 and the small grinding machine 11. Then, each power component resets, completing the automatic assembly of the reinforcing buckle plates 13, so that the bottom end of the suspension frame 9 and the small grinding machine 11 are received in the limiting groove 1301, and the reinforcing buckle plates 13 play a role in protecting and strengthening the rotating joints of the suspension frame 9 and the small grinding machine 11, avoiding loosening at the joints of the two due to the vibration of grinding. At the same time, the angle of the small grinding machine 11 is fixed and strengthened, preventing the small grinding machine 11 from deflecting during the grinding process and affecting the processing quality of the raceway groove 501. By setting two strengthening assembly components, before grinding, different reinforcing buckle plates 13 can be hung on the two strengthening assembly components. Since there are generally two raceway grooves 501 inside the outer ring flange 5, and the shapes and specifications of the two raceway grooves 501 are different, it is necessary to adjust the small grinding machine 11 to different angles and positions. After the first raceway groove 501 is processed, the outer ring flange 5 is flipped, and the first strengthening assembly component removes the first set of reinforcing buckle plates 13. After the angle of the small grinding machine 11 is adjusted, it moves to the other side, and the second strengthening assembly component assembles the second set of reinforcing buckle plates 13 on the small grinding machine 11, so that the two strengthening assembly components can respectively provide different reinforcing buckle plates 13 for the processing of different raceway grooves 501 to strengthen the small grinding machine 11.

[0042] As Figure 8 shown, one end of the fastening screw cylinder 21 is fixedly sleeved with a flower-shaped sleeve 24, and a flower-shaped jack that is adapted to the flower-shaped sleeve 24 is opened inside the second fastening cylinder 19. The flower-shaped sleeve 24 is inserted into the inside of the flower-shaped jack. As Figure 4 shown, a nut 25 is screwed on the end of the second fastening cylinder 19 that faces away from the first fastening cylinder 18. AsFigure 7 As shown, inside one end of the first fastening cylinder 18 close to the second fastening cylinder 19, a guiding screw ring 26 is fixedly installed, and the fastening bolt 20 is screwed inside the guiding screw ring 26; specifically, by providing the flower-shaped sleeve 24 and the guiding screw ring 26, after a set of fastening bolts 20 and fastening screw cylinders 21 are used multiple times, the fastening bolts 20 can be unscrewed and removed from the guiding screw ring 26, and the nuts 25 can be unscrewed to take out the fastening screw cylinders 21, so as to replace the fastening bolts 20 and the fastening screw cylinders 21, preventing the two from affecting the fastening of the reinforcing buckle plate 13 due to wear. At the same time, when installing the fastening bolts 20, one end of the fastening bolts 20 can be screwed into the guiding screw ring 26 until it is flush with the end face of the first fastening cylinder 18, so that the head positions of the new and old fastening bolts 20 are kept consistent, facilitating the docking of the small screw gun 23 with the fastening bolts 20.

[0043] As Figure 7 As shown, outer reinforcing insertion plates 27 are fixedly installed on both sides of the reinforcing buckle plate 13. The outer reinforcing insertion plates 27 are adapted to the outer reinforcing slots 1302, and a plurality of outer reinforcing insertion plates 27 located on two reinforcing buckle plates 13 are arranged in a staggered manner. In this embodiment, the hanging claws 34, the outer reinforcing slots 1302, and the outer reinforcing insertion plates 27 located on both sides are all arranged in a staggered manner; specifically, by providing the outer reinforcing slots 1302 and the fastening screw cylinders 21, the staggered outer reinforcing slots 1302 can make the two reinforcing buckle plates 13 have differences, facilitating assembly on different right-angle frames 17 and docking with the small screw gun 23. At the same time, when the two reinforcing buckle plates 13 are joined together on the small grinding machine 11, the two groups of outer reinforcing insertion plates 27 will respectively insert into the opposite outer reinforcing slots 1302 to limit the two reinforcing buckle plates 13, which not only facilitates the screwing of the fastening bolts 20 and the fastening screw cylinders 21, but also can improve the connection strength of the two reinforcing buckle plates 13 from the outside.

[0044] As Figure 7 As shown, a plurality of inner reinforcing slots 1303 are formed on the inner wall of one of the reinforcing buckle plates 13, and a plurality of inner reinforcing insertion rods 28 adapted to the inner reinforcing slots 1303 are fixedly installed on the inner wall of the other reinforcing buckle plate 13; specifically, by providing the inner reinforcing insertion rods 28 and the inner reinforcing slots 1303, when the two reinforcing buckle plates 13 are combined, a plurality of inner reinforcing insertion rods 28 on one side will respectively insert into the plurality of inner reinforcing slots 1303, preventing the two reinforcing buckle plates 13 from being misaligned from the inside and improving the connection strength of the two reinforcing buckle plates 13 from the inside at the same time.

[0045] As Figure 9 As shown, a disc-shaped tooling 29 is placed on the top of the placing table 4, as Figure 10As shown, a flower-shaped insertion rod 30 is fixedly installed at the bottom of the disc-shaped tooling 29, and a flower-shaped slot adapted to the flower-shaped insertion rod 30 is opened at the top of the placement table 4. A plurality of positioning posts 31 adapted to the flange holes 502 are fixedly installed at the top of the disc-shaped tooling 29. In this embodiment, an automatic fixture can be used to clamp and fix the outer ring flange 5 instead of the disc-shaped tooling 29. Specifically, by providing the disc-shaped tooling 29, before installing the outer ring flange 5, the disc-shaped tooling 29 adapted to the outer ring flange 5 can be placed on the placement table 4, and the flower-shaped insertion rod 30 at the bottom of the disc-shaped tooling 29 can be docked with the flower-shaped slot at the top of the placement table 4 to prevent the disc-shaped tooling 29 from rotating. Then, the flange holes 502 on the outer ring flange 5 are docked with the plurality of positioning posts 31 to position the outer ring flange 5. When the small grinding machine 11 processes the raceway groove 501, a vertically downward component force will be applied to the outer ring flange 5, pressing the outer ring flange 5 tightly against the disc-shaped tooling 29. The modularization of the tooling for the outer ring flange 5 can be realized through the disc-shaped tooling 29, so that the corresponding outer ring flange 5 can be replaced for different outer ring flanges 5.

[0046] As Figure 10 shown, positioning screw rings 32 are screwed to the tops of the positioning posts 31, and the positioning screw rings 32 are all located at the top of the outer ring flange 5. In this embodiment, it is not necessary to screw the positioning screw rings 32 on each positioning post 31. Screwing at least one positioning screw ring 32 can cooperate with the vertically downward component force during grinding to position the outer ring flange 5. Specifically, by providing the positioning screw rings 32, after the outer ring flange 5 is placed on the top of the disc-shaped tooling 29, at least one positioning screw ring 32 can be screwed onto the positioning post 31, so that the positioning screw ring 32 is locked to the top of the outer ring flange 5. When the small grinding machine 11 processes the raceway groove 501, the positioning screw ring 32 can cooperate with the vertically downward component force to prevent the disc-shaped tooling 29 from moving up and down, affecting the processing quality of the raceway groove 501.

[0047] As Figure 10 shown, a conical disc 33 is fixedly installed at the center position of the top of the disc-shaped tooling 29. A plurality of chip discharge holes 2901 are opened at the tops of the disc-shaped tooling 29, the placement table 4 and the grinding machine body 1. The chip discharge holes 2901 are evenly distributed along the axis of the conical disc 33. A collection box is arranged inside the grinding machine body 1, and the plurality of chip discharge holes 2901 communicate with the collection box from top to bottom. Specifically, by providing the chip discharge holes 2901, during the process of the small grinding machine 11 processing the raceway groove 501, the grinding waste chips will fall on the conical disc 33 and slide down along the inclined surface of the conical disc 33 to the chip discharge holes 2901, and finally fall into the collection box inside the grinding machine body 1, realizing the automatic discharge and collection of the waste chips.

[0048] In summary, when the automatic hub bearing flange raceway grinding machine is in use, the outer ring flange 5 is placed on the placement table 4 and aligned with the lifting plate 3, and then the outer ring flange 5 is fixed. After that, the telescopic movement of the steering electric push rod 10 is controlled according to the specification and shape of the raceway groove 501 to be processed. Then, the small grinding machine 11 is driven by the steering telescopic rod 12 to rotate at the bottom of the suspension frame 9, and the displacement linear module 8 is controlled to drive the suspension frame 9 to move horizontally, so as to adjust the angle of the grinding head of the small grinding machine 11 to make it adapt to the position of the preset raceway groove 501. After that, the hydraulic press 2 drives the lifting plate 3 to drive the small grinding machine 11 to descend and gradually extend into the inner part of the outer ring flange 5. The small grinding machine 11 drives the cutting head to rotate at a high speed to perform grinding processing on the inner wall of the outer ring flange 5. At the same time, the steering motor 7 drives the steering wheel 6 to rotate along the axis of the outer ring flange 5, so that the cutting head grinds out a circle of raceway grooves 501 on the inner wall of the outer ring flange 5, realizing the automatic processing of the raceway grooves 501. And before processing, the displacement linear module 8 drives the small grinding machine 11 to move to one side of the strengthening assembly component, so that the strengthening assembly component assembles two reinforcing buckle plates 13 on the bottom end of the suspension frame 9 and the small grinding machine 11, protects the connection between the small grinding machine 11 and the suspension frame 9, fixes the angle and position of the small grinding machine 11, strengthens the structural strength of the rotating joint of the small grinding machine 11, and prevents structural problems such as loosening and shaking during the grinding process. By setting the strengthening assembly component, before grinding, the staff hangs two reinforcing buckle plates 13 adapted to the angle of the current small grinding machine 11 on the suspension claws 34 on both sides respectively. The displacement linear module 8 drives the small grinding machine 11 to move to one side of the strengthening assembly component. At the same time, the X-axis linear module 14 drives the support frame 15 to carry the Y-axis bidirectional linear module 16 and the right-angle frame 17 on the top to move synchronously towards the small grinding machine 11, so that the small grinding machine 11 is located between the two reinforcing buckle plates 13. Then, the Y-axis bidirectional linear module 16 drives the two right-angle frames 17 to approach each other, so that the two reinforcing buckle plates 13 are buckled on the small grinding machine 11. At this time, the first fastening cylinder 18 and the second fastening cylinder 19 are butted against each other. The fastening electric push rod 22 drives the small screw gun 23 to move, so that the front end of the small screw gun 23 is butted against the fastening bolt 20. The small screw gun 23 drives the fastening bolt 20 to rotate, and the fastening electric push rod 22 drives the small screw gun 23 to move synchronously, so that the front end of the fastening bolt 20 is screwed into the fastening screw cylinder 21, locking the two reinforcing buckle plates 13 on the suspension frame 9 and the small grinding machine 11. After that, each power component resets, completing the automatic assembly of the reinforcing buckle plates 13, so that the bottom end of the suspension frame 9 and the small grinding machine 11 are received in the limit groove 1301, and the reinforcing buckle plates 13 play a role in protecting and strengthening the rotating joints of the suspension frame 9 and the small grinding machine 11, avoiding loosening at the joints of the two due to the vibration of grinding, and at the same time fixing and strengthening the angle of the small grinding machine 11, preventing the small grinding machine 11 from deflecting during the grinding process and affecting the processing quality of the raceway grooves 501. By setting two strengthening assembly components,Before grinding, different reinforcing buckle plates 13 can be hung on the two reinforced assembly components. Since generally two raceway grooves 501 are provided inside the outer ring flange 5 and the shapes and specifications of the two raceway grooves 501 are different, the small grinding machine 11 needs to be adjusted to different angles and positions. After the first raceway groove 501 is processed, the outer ring flange 5 is flipped, the first reinforced assembly component removes the first set of reinforcing buckle plates 13, the small grinding machine 11 is adjusted in angle and then moved to the other side, and the second reinforced assembly component assembles the second set of reinforcing buckle plates 13 on the small grinding machine 11, so that the two reinforced assembly components can respectively provide different reinforcing buckle plates 13 for the processing of different raceway grooves 501 to reinforce the small grinding machine 11. By providing the flower-shaped sleeve 24 and the guiding screw ring 26, after the set of fastening bolts 20 and fastening screw barrels 21 are used multiple times, the fastening bolts 20 can be removed by turning them out of the guiding screw ring 26, the nuts 25 are unscrewed, and the fastening screw barrels 21 are taken out to replace the fastening bolts 20 and the fastening screw barrels 21 to prevent the wear of the two from affecting the fastening of the reinforcing buckle plates 13. At the same time, when installing the fastening bolts 20, one end of the fastening bolts 20 can be screwed into the guiding screw ring 26 until it is flush with the end face of the first fastening barrel 18, so that the head positions of the old and new fastening bolts 20 are kept consistent, which is convenient for the small screw gun 23 to dock with the fastening bolts 20. By providing the outer reinforcing slots 1302 and the fastening screw barrels 21, the mutually staggered outer reinforcing slots 1302 can make the two reinforcing buckle plates 13 different, which is convenient for being assembled on different right-angle frames 17 and docking with the small screw gun 23. At the same time, when the two reinforcing buckle plates 13 are assembled on the small grinding machine 11, the outer reinforcing plates 27 of the two groups will respectively insert into the opposite outer reinforcing slots 1302 to limit the two reinforcing buckle plates 13, which not only facilitates the screwing connection between the fastening bolts 20 and the fastening screw barrels 21, but also can improve the connection strength of the two reinforcing buckle plates 13 from the outside. By providing the inner reinforcing rods 28 and the inner reinforcing slots 1303, when the two reinforcing buckle plates 13 are combined, multiple inner reinforcing rods 28 on one side will respectively insert into multiple inner reinforcing slots 1303 to prevent the two reinforcing buckle plates 13 from being misaligned from the inside and improve the connection strength of the two reinforcing buckle plates 13 from the inside. By providing the disc-shaped tooling 29, before installing the outer ring flange 5, the disc-shaped tooling 29 adapted to the outer ring flange 5 can be placed on the placing table 4, and the flower-shaped insertion rod 30 at the bottom of the disc-shaped tooling 29 is docked with the flower-shaped slot on the top of the placing table 4 to prevent the disc-shaped tooling 29 from rotating. Then, the flange holes 502 on the outer ring flange 5 are docked with multiple positioning columns 31 to position the outer ring flange 5. When the small grinding machine 11 processes the raceway groove 501, a vertically downward component force will be applied to the outer ring flange 5, so that the outer ring flange 5 is pressed tightly on the disc-shaped tooling 29. The modularization of the tooling of the outer ring flange 5 can be realized through the disc-shaped tooling 29, so that the corresponding outer ring flange 5 can be replaced for different outer ring flanges 5. By providing the positioning screw ring 32,After the outer ring flange 5 is placed on the top of the disc-shaped tooling 29 again, at least one positioning snap ring 32 can be screwed onto the positioning post 31, so that the positioning snap ring 32 is locked on the top of the outer ring flange 5. When the small grinding machine 11 processes the raceway groove 501, the positioning snap ring 32 can cooperate with the vertically downward component force to prevent the disc-shaped tooling 29 from moving up and down, which affects the machining quality of the raceway groove 501. By providing the chip removal hole 2901, during the process of the small grinding machine 11 machining the raceway groove 501, the waste chips generated by grinding will fall on the conical disc 33, slide down along the inclined surface of the conical disc 33 to the chip removal hole 2901, and finally fall into the collection box inside the grinding machine body 1, realizing the automatic discharge and collection of waste chips.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated hub bearing flange raceway grinding machine, characterized in that, It includes a grinding machine body (1). A hydraulic press (2) is fixedly installed at the top of the grinding machine body (1). A lifting plate (3) is fixedly installed at the driving end of the hydraulic press (2). A placing table (4) is fixedly installed at the top of the grinding machine body (1). An outer ring flange (5) is placed on the top of the placing table (4). Two coaxially arranged raceway grooves (501) are provided on the inner wall of the outer ring flange (5). A plurality of flange holes (502) are formed on the circumferential side of the outer ring flange (5). A steering plate (6) is rotatably installed at the bottom of the lifting plate (3). A steering motor (7) is fixedly installed at the top of the lifting plate (3). The output shaft of the steering motor (7) is drivingly connected to the steering plate (6). A horizontally arranged transposition linear module (8) is fixedly installed at the bottom of the steering plate (6). A suspension bracket (9) is fixedly installed at the bottom of the driving end of the transposition linear module (8). A horizontally arranged steering electric push rod (10) is fixedly installed at the top of the suspension bracket (9). A small grinding machine (11) is rotatably installed at the bottom of the suspension bracket (9). A diagonally arranged steering telescopic rod (12) is rotatably installed at the telescopic end of the steering electric push rod (10). The telescopic end of the steering telescopic rod (12) is rotatably installed on one side of the small grinding machine (11). Two symmetrical strengthening buckle plates (13) are sleeved on the small grinding machine (11). Limiting grooves (1301) adapted to the suspension bracket (9) and the small grinding machine (11) are respectively formed on the inner walls of the strengthening buckle plates (13). Two strengthening assembly components for automatically assembling the strengthening buckle plates (13) on the small grinding machine (11) are arranged at the top of the grinding machine body (1). The two strengthening assembly components are distributed on both sides of the placing table (4). The strengthening assembly component includes an X-axis linear module (14) fixedly installed at the top of the grinding machine body (1). A support frame (15) is fixedly installed at the top of the driving end of the X-axis linear module (14). A Y-axis bidirectional linear module (16) is fixedly installed at the top of the support frame (15). Right-angle frames (17) are fixedly installed at the tops of the two driving ends of the Y-axis bidirectional linear module (16). A plurality of suspension claws (34) are fixedly installed on one side of each of the two right-angle frames (17) close to each other. Outer strengthening slots (1302) adapted to the suspension claws (34) are respectively formed on the side walls of the strengthening buckle plates (13). A first fastening cylinder (18) and a second fastening cylinder (19) are respectively fixedly installed on one side of the two strengthening buckle plates (13). A fastening bolt (20) is arranged inside the first fastening cylinder (18). A fastening screw cylinder (21) adapted to the fastening bolt (20) is arranged inside the second fastening cylinder (19). A horizontally arranged fastening electric push rod (22) is fixedly installed on the side wall of one of the right-angle frames (17). A small screw gun (23) is fixedly installed at the telescopic end of the fastening electric push rod (22). One end of the fastening screw cylinder (21) is fixedly sleeved with a flower-shaped sleeve (24). A flower-shaped socket adapted to the flower-shaped sleeve (24) is formed inside the second fastening cylinder (19). The flower-shaped sleeve (24) is inserted into the flower-shaped socket. A nut (25) is screwed to one end of the second fastening cylinder (19) away from the first fastening cylinder (18). A guiding screw ring (26) is fixedly installed inside one end of the first fastening cylinder (18) close to the second fastening cylinder (19). The fastening bolt (20) is screwed inside the guiding screw ring (26).

2. An automated hub bearing flange raceway grinding machine according to claim 1, wherein, Outer strengthening insertion plates (27) are fixedly installed on both sides of the strengthening buckle plate (13). The outer strengthening insertion plates (27) are adapted to the outer strengthening slots (1302). A plurality of the outer strengthening insertion plates (27) located on two respective strengthening buckle plates (13) are arranged in an alternating manner.

3. An automatic hub bearing flange raceway grinding machine according to claim 1, characterized in that, A plurality of inner strengthening slots (1303) are formed on the inner wall of one of the strengthening buckle plates (13). A plurality of inner strengthening insertion rods (28) adapted to the inner strengthening slots (1303) are fixedly installed on the inner wall of the other strengthening buckle plate (13).

4. An automatic hub bearing flange raceway grinding machine according to claim 1, characterized in that, A disc-shaped tooling (29) is placed on the top of the placement table (4). A flower-shaped insertion rod (30) is fixedly installed at the bottom of the disc-shaped tooling (29). A flower-shaped slot adapted to the flower-shaped insertion rod (30) is formed on the top of the placement table (4). A plurality of positioning columns (31) adapted to the flange holes (502) are fixedly installed on the top of the disc-shaped tooling (29).

5. An automatic hub bearing flange raceway grinding machine according to claim 4, characterized in that, Positioning screw rings (32) are screwed to the tops of the positioning columns (31). The positioning screw rings (32) are all located on the top of the outer ring flange (5).

6. An automatic hub bearing flange raceway grinding machine according to claim 4, characterized in that, A conical disc (33) is fixedly installed at the center position of the top of the disc-shaped tooling (29). A plurality of chip discharge holes (2901) are formed on the tops of the disc-shaped tooling (29), the placement table (4) and the grinding machine body (1). The chip discharge holes (2901) are evenly distributed along the axis of the conical disc (33). A collection box is arranged inside the grinding machine body (1). A plurality of the chip discharge holes (2901) communicate with the collection box from top to bottom.

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