Adaptive grinding device for bearing rings and grinding method thereof

Abstract

The application belongs to the technical field of bearing machining, and discloses a self-adaptive grinding device for bearing rings and a grinding method thereof, which comprises a swing arm, an assembling mechanism and a grinding action piece, the grinding action piece comprises a rough grinding part, a fine grinding part and a processing disc, elastic sleeve-pushing assemblies are equidistantly distributed on the outer side surface of the processing disc, and the number of the rough grinding part and the fine grinding part is the same. The self-adaptive grinding device for bearing rings is characterized in that three cam assemblies, rough grinding parts and fine grinding parts are used in cooperation with pushing assemblies and a processing disc, the independent control of the rough grinding parts and the fine grinding parts which are alternately and circumferentially distributed is realized through the three cam assemblies, the extension and retraction displacement of the rough grinding parts and the fine grinding parts is respectively controlled under the deflection in different directions, the switching of the rough grinding and the fine grinding is quickly realized in the rotating grinding process without stopping and processing, the operation is simple, and the switching is quick.

Description

Technical Field

[0001] This invention belongs to the field of bearing processing technology, specifically an adaptive grinding device and grinding method for bearing steel rings. Background Technology

[0002] Bearing rings are one of the core components of rolling bearings. They are usually made of high-carbon chromium bearing steel, which has high hardness, high wear resistance and good fatigue resistance. The most important step in the production and processing of bearing rings is grinding. Grinding of bearing rings usually requires grinding of the inner grooves.

[0003] In existing adaptive grinding equipment for bearing steel rings, during operation, the grinding end is moved to the inner side of the bearing steel ring by a fixed clamping arm to perform grinding processing on the groove. In order to ensure high grinding quality, a switching method between rough grinding and fine grinding is usually adopted. However, the current switching method requires the removal of the rough grinding tool and the movement control of the fine grinding tool, and the fine grinding process is started after the movement switch. In practice, continuous staged grinding operation is inconvenient, requiring intermediate pauses and switching processes, which greatly reduces grinding efficiency and results in poor overall performance. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive grinding device and grinding method for bearing steel rings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an adaptive grinding device and grinding method for bearing steel rings, comprising a swing arm, an assembly mechanism, and grinding actuators. The grinding actuators include a rough grinding section, a fine grinding section, and a processing disk. Elastically fitted pushing assemblies are distributed at equal intervals on the outer surface of the processing disk. The number of rough grinding sections and fine grinding sections is the same, and there are three sets of each. The three sets of rough grinding sections and the three sets of fine grinding sections are alternately distributed. Both the rough grinding sections and the fine grinding sections are mounted on the outer ends of the pushing assemblies. A three-cam assembly is rotatably mounted inside the processing disk. A mounting seat is provided on the front of the processing disk, and a rotating mounting part is installed inside the mounting seat. One end of the rotating mounting part is fixedly connected to the processing disk, and the rotating mounting part controls the rotation of the processing disk.

[0006] The three-cam assembly includes three cams, an intermediate shaft, a gear, and a gear plate. The gear plate is meshed with the gear, the gear is fixedly sleeved on the intermediate shaft, and the intermediate shaft is fixedly sleeved in the three cams. When the three cams deflect in the processing disk, they respectively control the coarse grinding part and the fine grinding part to contact the inner groove of the bearing steel ring.

[0007] Preferably, the assembly mechanism includes an assembly cylinder and a fixing part, the swing arm is fixedly connected to the assembly cylinder, the bearing steel ring to be ground is sleeved in the assembly cylinder, the swing arm swings to control the position of the bearing steel ring, the three-cam assembly also includes an electric push rod and a mounting block, the electric push rod is fixed to the front of the processing disk by the mounting block sleeved on the outside, and the movable end of the electric push rod is fixedly connected to the toothed plate.

[0008] Preferably, the processing disk includes a disk body, stepped holes, and through holes, wherein the stepped holes are formed on the outer side of the disk body, and the through holes are formed on the front side of the disk body.

[0009] Preferably, the push assembly includes a connecting frame, a fixed shaft, a bearing, a push rod, and a spring. The fixed shaft is fixedly connected in the connecting frame, the bearing is rotatably sleeved on the outside of the fixed shaft, one end of the push rod is fixedly connected to the connecting frame, and the other end passes through the stepped hole and extends into the interior of the disc body. One end of the spring is fixedly connected in the stepped hole, and the other end is fixedly connected to the connecting frame.

[0010] Preferably, the coarse grinding section includes a first mounting ring, a coarse grinding block, and a first positioning hole; the fine grinding section includes a second mounting ring, a second fine grinding block, and a second positioning hole. The coarse grinding block is fixed to the outside of the first mounting ring, and the first positioning hole is opened on the front of the first mounting ring. The fine grinding block is fixed to the outside of the second mounting ring, and the second positioning hole is opened on the front of the second mounting ring. The inner walls of the first and second mounting rings are both fixedly sleeved with bearings and installed in the corresponding push assembly through the bearings.

[0011] Preferably, there are three coarse grinding blocks and three fine grinding blocks. The three coarse grinding blocks are nested in a ring at equal intervals on the outside of the first mounting ring, and the three fine grinding blocks are nested in a ring at equal intervals on the outside of the second mounting ring. The side of the connecting frame is fitted with locking bolts. The locking bolts lock and fix the coarse grinding part through the internally threaded positioning hole one, and lock and fix the fine grinding part through the internally threaded positioning hole two. Infrared thermal imagers are nested on the outer surfaces of both the first and second mounting rings.

[0012] Preferably, a spray pipe is fixedly sleeved on the outer side of the processing disk, the spray pipe is symmetrically distributed on both sides of the push assembly, an inlet pipe is fixedly connected to the side of the mounting base, and a rotating communication mechanism is provided inside the mounting base. The rotating communication mechanism is connected to the inside of the rotating mounting part. The inlet pipe injects cutting fluid into the processing disk through the rotating communication mechanism and the rotating mounting part, and sprays it out through the spray pipe.

[0013] Preferably, the rotating mounting part includes a mounting post, an annular groove, an internal cavity, and a side opening. The annular groove is formed on the outer surface of the mounting post. One end of the mounting post is fixedly connected to the disc body. The internal cavity is formed inside the mounting post. The side opening is formed inside the mounting post. The two ends of the side opening are respectively connected to the annular groove and the internal cavity. Both sides of the mounting post are fixedly connected to a guide tube. The other end of the guide tube is fixedly connected to the front surface of the disc body. One end of the guide tube is connected to the internal cavity, and the other end is connected to a through hole. An mounting kit is fixedly provided on the outer surface of the mounting post. An adapter cavity is formed inside the mounting post. The mounting kit is aligned and connected to the adapter cavity. The toothed plate is movably sleeved in the adapter cavity and the mounting kit.

[0014] Preferably, the rotating communication mechanism includes a retaining ring, an outer ring groove, an inner ring groove, and a second side opening. The retaining ring is fixedly sleeved on the inner wall of the mounting base. The outer ring groove is formed on the inner wall of the mounting base and located outside the retaining ring. The inner ring groove is formed on the inner wall of the retaining ring. The second side opening is formed in the retaining ring, and its two ends are respectively connected to the inner ring groove and the outer ring groove. The liquid inlet pipe is connected to the outer ring groove. The power component includes a motor frame, a motor, and a connecting rod. The motor frame is fixedly connected to the mounting base, the motor is fixedly installed in the motor frame, and the connecting rod is fixedly connected to the mounting base.

[0015] A grinding method using an adaptive grinding device for bearing steel rings includes the following grinding steps:

[0016] Step 1: Place the bearing to be processed in the assembly mechanism. The swing arm drives the assembly mechanism to rotate to the processing position. The external push mechanism pushes the mounting base to move and drives the processing plate to move into the assembly mechanism.

[0017] Step 2: Position the rough grinding section and the fine grinding section in the plane of the bearing groove, start the three-cam assembly, the gear plate drives the gear to rotate, and the three cams deflect. The three cams push the push components corresponding to the three sets of rough grinding sections on the outside, causing the push components to move laterally and move the rough grinding section closer to and contact the inner wall of the bearing groove. Start the power assembly, drive the rotating mounting part to rotate, drive the processing plate to rotate, and cause the rough grinding section to rotate to perform rough grinding.

[0018] Step 3: After rough grinding, start the three-cam assembly. The electric push rod drives the gear plate to move again and drives the gear to rotate, causing the three cams to deflect again and push the corresponding push assembly of the outer fine grinding part to move. This moves the fine grinding part closer to the bearing groove, while the rough grinding part resets and moves away. As the processing disc rotates, it drives the fine grinding part to rotate, completing the fine grinding process.

[0019] Step 4: Input external cutting fluid into the inlet pipe and into the mounting base, and input it into the treatment plate by rotating the mounting part. It is then sprayed along the spray pipe toward the grinding contact surface to complete the grinding cooling treatment.

[0020] Step 5: During the rotary grinding process, infrared thermal imagers on the outside of the rough grinding section and the fine grinding section detect the temperature at the inner groove of the machined bearing and feed it back to the external temperature control equipment to adjust the flow and temperature of the cutting fluid.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) This invention utilizes a three-cam assembly, a coarse grinding section and a fine grinding section, along with a push assembly and a processing disk. The three-cam assembly enables independent control of the alternatingly distributed coarse grinding section and fine grinding section. Under the deflection action in different directions, the extension and retraction displacement of the coarse grinding section and the fine grinding section are controlled respectively. With the cooperation of different grinding blocks in the coarse grinding section and the fine grinding section, the switching between coarse grinding and fine grinding actions can be quickly realized during the rotational grinding process without stopping the machine. The operation is simple and the switching is quick.

[0023] (2) This invention utilizes a rotating mounting part, a rotating connecting mechanism, and a processing disc to achieve the introduction and processing of cutting fluid. With the help of the spray pipes distributed on the outside of the processing disc, the cutting fluid is directly input into the spray pipes. With the distribution and processing of the rough grinding part and the fine grinding part on the outside of the processing disc, the grinding contact surface of the rough grinding part and the fine grinding part can be precisely sprayed with cutting fluid. In the actual grinding process, the cutting fluid is precisely sprayed at the grinding position, which improves the cooling and rinsing effect and reduces the splashing problem caused by external spraying of cutting fluid. It has the effect of high precision in spraying cooling and rinsing and controlling environmental splashing.

[0024] (3) The present invention utilizes the rotatable mounting ring 1 and mounting ring 2 in the coarse grinding part and the fine grinding part, in conjunction with the locking bolt and the positioning hole 1 and positioning hole 2, to fix the rotating coarse grinding part and the fine grinding part. After the fixation is released, the coarse grinding part and the fine grinding part can be deflected to switch the grinding blocks on the outer surface of the coarse grinding part and the fine grinding part. When a local grinding block fails or is damaged, a spare grinding block can be quickly switched to use. The operation is simple. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram showing the connection between the rotating mounting part and the processing disk of the present invention;

[0027] Figure 3 This is a cross-sectional schematic diagram of the processing disk of the present invention;

[0028] Figure 4This is an exploded view of the rough grinding section and the pushing assembly of the present invention;

[0029] Figure 5 This is a schematic diagram of the precision grinding section of the present invention;

[0030] Figure 6 This is a cross-sectional schematic diagram of the mounting base and the rotating mounting part of the present invention;

[0031] Figure 7 This is a schematic diagram of the three-cam assembly of the present invention;

[0032] Figure 8 This is an exploded view of the rotating mounting part and the processing disk of the present invention;

[0033] Figure 9 This is a cross-sectional schematic diagram of the rotating mounting part and the processing disk of the present invention;

[0034] Figure 10 This is a cross-sectional schematic diagram of the mounting base and the rotating communication mechanism of the present invention.

[0035] In the diagram: 1. Swing arm; 2. Assembly mechanism; 3. Processing disc; 31. Disc body; 32. Stepped hole; 33. Through hole; 4. Rough grinding section; 41. Mounting ring one; 42. Rough grinding block; 43. Positioning hole one; 5. Fine grinding section; 51. Mounting ring two; 52. Fine grinding block; 53. Positioning hole two; 6. Push assembly; 61. Connecting frame; 62. Fixed shaft; 63. Bearing; 64. Push rod; 65. Spring; 7. Three-cam assembly; 71. Three cams; 72. Intermediate shaft; 73. Gear; 74. Electric push rod; 75. 76. Toothed plate; 8. Mounting block; 9. Mounting base; 10. Rotating mounting part; 11. Mounting column; 12. Annular groove one; 13. Internal cavity; 14. Side opening one; 15. Power assembly; 16. Motor frame; 17. Motor; 18. Connecting rod; 19. Spray pipe; 10. Inlet pipe; 11. Rotating connecting mechanism; 12. Snap ring; 13. Outer annular groove; 14. Inner annular groove; 15. Side opening two; 16. Assembly set; 17. Conductor pipe; 18. Adaptor cavity; 19. Infrared thermal imager; 10. Locking bolt. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1 to 10As shown, this embodiment of the invention provides an adaptive grinding device and grinding method for bearing steel rings, including a swing arm 1, an assembly mechanism 2, and grinding actuators. The grinding actuators include a rough grinding section 4, a fine grinding section 5, and a processing disk 3. Elastically fitted push assemblies 6 are distributed at equal intervals on the outer surface of the processing disk 3. The number of rough grinding sections 4 and fine grinding sections 5 is the same, and there are three sets of each. The three sets of rough grinding sections 4 and the three sets of fine grinding sections 5 are alternately distributed. Both the rough grinding sections 4 and fine grinding sections 5 are installed on the outer end of the push assemblies 6. A three-cam assembly 7 is rotatably mounted inside the processing disk 3. The front of the processing disk 3 is provided with a mounting base 8, and a rotating mounting part 9 is installed inside the mounting base 8. One end of the rotating mounting part 9 is fixedly connected to the processing disk 3, and the rotating mounting part 9 controls the rotation of the processing disk 3. The three-cam assembly 7 includes a three-cam 71, an intermediate shaft 72, a gear 73 and a toothed plate 75. The toothed plate 75 is meshed with the gear 73. The gear 73 is fixedly sleeved on the intermediate shaft 72. The intermediate shaft 72 is fixedly sleeved in the three-cam 71. When the three-cam 71 deflects in the processing disk 3, it controls the coarse grinding part 4 and the fine grinding part 5 to contact the inner groove of the bearing steel ring respectively.

[0038] Example 1: The bearing to be processed is placed in the assembly mechanism 2. The swing arm 1 drives the assembly mechanism 2 to rotate to the processing position. The external moving mechanism pushes the mounting base 8 to move, and drives the processing disk 3 to move into the assembly mechanism 2, so that the rough grinding part 4 and the fine grinding part 5 are located in the vertical plane where the bearing groove is located. The three-cam assembly 7 is activated. The electric push rod 74 drives the gear plate 75 to move, and drives the meshing gear 73 to rotate, and causes the three cams 71 to deflect. The three cams 71 push the push assembly 6 corresponding to the three sets of rough grinding parts 4 on the outside, so that the push rod 64 in the push assembly 6 moves, stretches the spring 65, and drives the rough grinding part 4 to move close to and contact the inner wall of the bearing groove. The power assembly 10 is activated, which drives the rotating mounting part 9 to rotate, and drives the connected processing disk 3 to rotate, so that the rough grinding part 4 rotates to perform rough grinding. After the rough grinding, the... The three-cam assembly 7 and the electric push rod 74 drive the gear plate 75 to move again, which in turn drives the gear 73 to rotate, causing the three-cam 71 to deflect again and push the corresponding push assembly 6 of the outer fine grinding part 5 to move. This causes the fine grinding part 5 to move and approach the bearing groove, while the rough grinding part 4 resets and moves away. As the processing disk 3 rotates, it drives the fine grinding part 5 to rotate, completing the fine grinding process. External cutting fluid is input into the inlet pipe 12 and into the rotating communication mechanism 13 of the mounting base 8. The cutting fluid enters the inner ring groove 133 along the outer ring groove 132 and the second side opening 134, and then enters the internal cavity 93 of the rotating mounting part 9 through the first side opening 94. It is also input into the processing disk 3 through the guide pipe 15 on the outside of the rotating mounting part 9. The cutting fluid in the processing disk 3 is sprayed towards the grinding contact surface along the spray pipe 11, completing the grinding cooling process.

[0039] First, by utilizing the three-cam assembly 7, the rough grinding section 4, and the fine grinding section 5, in conjunction with the push assembly 6 and the processing disk 3, the three-cam assembly 7 enables independent control of the alternately distributed rough grinding section 4 and fine grinding section 5. Under the deflection action in different directions, the extension and retraction displacement of the rough grinding section 4 and the fine grinding section 5 are controlled respectively. With the different grinding blocks in the rough grinding section 4 and the fine grinding section 5, the switching between rough grinding and fine grinding actions can be quickly realized during the rotational grinding process without stopping the machine. The operation is simple and the switching is quick.

[0040] Furthermore, by utilizing the rotating mounting part 9, the rotating connecting mechanism 13, and the treatment plate 3, the cutting fluid is introduced. With the help of the spray pipes 11 distributed on the outside of the treatment plate 3, the cutting fluid is directly input into the spray pipes 11. With the help of the distribution of the rough grinding part 4 and the fine grinding part 5 on the outside of the treatment plate 3, the grinding contact surfaces of the rough grinding part 4 and the fine grinding part 5 can be precisely sprayed. During the actual grinding process, the cutting fluid is precisely sprayed at the grinding position, which improves the cooling and rinsing effect and reduces the splashing problem caused by externally sprayed cutting fluid. It has the effect of high precision in spraying cooling and rinsing and controlling environmental splashing.

[0041] Example 2: When the grinding blocks in the coarse grinding section 4 or the fine grinding section 5 wear out, loosen the locking bolt 18, rotate the mounting ring 41 and switch the coarse grinding block 42 on the outside of the coarse grinding section 4. Similarly, adjust and switch the fine grinding block 52 in the fine grinding section 5 to complete the quick switch.

[0042] First, by utilizing the rotatable mounting ring 41 and mounting ring 51 in the coarse grinding section 4 and the fine grinding section 5, and cooperating with the locking bolt 18 and the positioning holes 43 and 53, the rotating coarse grinding section 4 and the fine grinding section 5 are fixed. After the fixation is released, the coarse grinding section 4 and the fine grinding section 5 can be deflected to switch the grinding blocks on the outer surface of the coarse grinding section 4 and the fine grinding section 5. In case of local grinding block failure or damage, a spare grinding block can be quickly switched for use. The operation is simple.

[0043] The assembly mechanism 2 includes an assembly cylinder and a fixing part. The swing arm 1 is fixedly connected to the assembly cylinder. The bearing steel ring to be ground is sleeved in the assembly cylinder. The swing arm 1 swings to control the position of the bearing steel ring. The three-cam assembly 7 also includes an electric push rod 74 and a mounting block 76. The electric push rod 74 is fixed to the front of the processing disk 3 through the mounting block 76 sleeved on the outside. The movable end of the electric push rod 74 is fixedly connected to the toothed plate 75.

[0044] The assembly mechanism 2 and the swing arm 1 work together to complete the existing feeding and positioning processes, preparing for grinding. The electric push rod 74 in the three-cam assembly 7 controls the movement of the gear plate 75, realizes the rotation of the gear 73, and completes the deflection control of the three-cam 71.

[0045] The processing disk 3 includes a disk body 31, a stepped hole 32, and a through hole 33. The stepped hole 32 is located on the outside of the disk body 31, and the through hole 33 is located on the front of the disk body 31.

[0046] The processing plate 3 is used to assemble the push assembly 6 and provide control space, allowing the three-cam assembly 7 to be processed and enabling the internal conduction of the cutting fluid, guiding the spraying of the cutting fluid.

[0047] The push assembly 6 includes a connecting frame 61, a fixed shaft 62, a bearing 63, a push rod 64, and a spring 65. The fixed shaft 62 is fixedly connected in the connecting frame 61. The bearing 63 is rotatably sleeved on the outside of the fixed shaft 62. One end of the push rod 64 is fixedly connected to the connecting frame 61, and the other end passes through the stepped hole 32 and extends into the interior of the disc body 31. One end of the spring 65 is fixedly connected in the stepped hole 32, and the other end is fixedly connected to the connecting frame 61.

[0048] By utilizing the push assembly 6 to provide the telescopic pushing force, and in conjunction with the elastic return of the spring 65, the stepped hole 32 provides the mounting space for the spring 65.

[0049] The coarse grinding section 4 includes a mounting ring 41, a coarse grinding block 42, and a positioning hole 43. The fine grinding section 5 includes a mounting ring 51, a fine grinding block 52, and a positioning hole 53. The coarse grinding block 42 is fixed on the outside of the mounting ring 41, and the positioning hole 43 is opened on the front of the mounting ring 41. The fine grinding block 52 is fixed on the outside of the mounting ring 51, and the positioning hole 53 is opened on the front of the mounting ring 51. The inner walls of the mounting ring 41 and the mounting ring 51 are both fixedly sleeved with bearings and installed in the corresponding push assembly 6 through the bearings 63.

[0050] The rough grinding section 4 and the fine grinding section 5 achieve controlled grinding by changing their positions relative to the bearing groove.

[0051] There are three coarse grinding blocks 42 and three fine grinding blocks 52. The three coarse grinding blocks 42 are nested in a ring at equal intervals on the outside of the first mounting ring 41, and the three fine grinding blocks 52 are nested in a ring at equal intervals on the outside of the second mounting ring 51. The side of the connecting bracket 61 is fitted with locking bolts 18. The locking bolts 18 lock and fix the coarse grinding part 4 through the internally threaded positioning hole 43, and lock and fix the fine grinding part 5 through the internally threaded positioning hole 53. The outer surfaces of the first mounting ring 41 and the second mounting ring 51 are both fitted with infrared thermal imagers 17.

[0052] By utilizing multiple sets of coarse grinding blocks 42 and fine grinding blocks 52 arranged in a ring, it is convenient to quickly switch when the grinding blocks fail or are damaged, reducing the difficulty and cost of replacement. During the rotating grinding process, the infrared thermal imager 17 on the outside of the coarse grinding section 4 and the fine grinding section 5 detects the temperature at the inner groove of the machined bearing and feeds it back to the external temperature control equipment to adjust the flow and temperature of the cutting fluid. The cooling treatment during the grinding process is adaptive. The infrared thermal imager 17 is existing technology, specifically model FLIR A655sc.

[0053] The outer side of the processing plate 3 is fixedly fitted with a spray pipe 11, which is symmetrically distributed on both sides of the push assembly 6. The side of the mounting base 8 is fixedly connected with an inlet pipe 12. The mounting base 8 is provided with a rotating communication mechanism 13, which is connected to the inside of the rotating mounting part 9. The inlet pipe 12 injects cutting fluid into the processing plate 3 through the rotating communication mechanism 13 and the rotating mounting part 9, and sprays it out through the spray pipe 11.

[0054] The spray pipe 11 is distributed correspondingly to the push component 6 and is directed toward the extended displacement grinding block to complete the precise directional spray cooling treatment, avoiding the splashing problem caused by external spraying, and improving the cooling effect.

[0055] The rotating mounting part 9 includes a mounting post 91, an annular groove 92, an internal cavity 93, and a side opening 94. The annular groove 92 is formed on the outer surface of the mounting post 91. One end of the mounting post 91 is fixedly connected to the disk body 31. The internal cavity 93 is formed inside the mounting post 91. The side opening 94 is formed inside the mounting post 91. Both ends of the side opening 94 are connected to the annular groove 92 and the internal cavity 93, respectively. Both sides of the mounting post 91 are fixedly connected to a guide tube 15. The other end of the guide tube 15 is fixedly connected to the front surface of the disk body 31. One end of the guide tube 15 is connected to the internal cavity 93, and the other end is connected to the through hole 33. A mounting accessory 14 is fixedly provided on the outer surface of the mounting post 91. An adapter cavity 16 is formed inside the mounting post 91. The mounting accessory 14 is aligned and connected to the adapter cavity 16. The toothed plate 75 is movably sleeved in the adapter cavity 16 and the mounting accessory 14.

[0056] The rotating mounting part 9 connects to the treatment plate 3 on one hand, enabling the treatment plate 3 to rotate, and on the other hand, it provides a conductive function to ensure that the cutting fluid is guided into the treatment plate 3, while also providing support and movement space for the toothed plate 75.

[0057] The rotating communication mechanism 13 includes a retaining ring 131, an outer ring groove 132, an inner ring groove 133, and a second side opening 134. The retaining ring 131 is fixedly sleeved on the inner wall of the mounting base 8. The outer ring groove 132 is opened on the inner wall of the mounting base 8 and is located outside the retaining ring 131. The inner ring groove 133 is opened on the inner wall of the retaining ring 131. The second side opening 134 is opened in the retaining ring 131. The two ends of the second side opening 134 are respectively connected to the inner ring groove 133 and the outer ring groove 132. The liquid inlet pipe 12 is connected to the outer ring groove 132. The power assembly 10 includes a motor frame 101, a motor 102, and a connecting rod 103. The motor frame 101 is fixedly connected to the mounting base 8. The motor 102 is fixedly installed in the motor frame 101. The connecting rod 103 is fixedly connected to the mounting base 8.

[0058] The rotating communication mechanism 13 is used to guide the cutting fluid, ensuring that the cutting fluid is stably introduced into the rotating treatment disk 3 during the rotation of the rotating mounting part 9, thereby realizing dynamic rotating spraying.

[0059] A grinding method using an adaptive grinding device for bearing steel rings includes the following grinding steps:

[0060] Step 1: Place the bearing to be processed in the assembly mechanism 2. The swing arm 1 drives the assembly mechanism 2 to rotate to the processing position. The external push mechanism pushes the mounting base 8 to move and drives the processing plate 3 to move into the assembly mechanism 2.

[0061] Step 2: Position the coarse grinding section 4 and the fine grinding section 5 in the plane of the bearing groove. Activate the three-cam assembly 7. The gear plate 75 drives the gear 73 to rotate, causing the three-cam 71 to deflect. The three-cam 71 pushes the push assembly 6 corresponding to the three sets of coarse grinding sections 4 on the outside, causing the push assembly 6 to move laterally and move the coarse grinding section 4 closer to and in contact with the inner wall of the bearing groove. Activate the power assembly 10, drive the rotating mounting part 9 to rotate, drive the processing disk 3 to rotate, and cause the coarse grinding section 4 to rotate for coarse grinding.

[0062] Step 3: After rough grinding, start the three-cam assembly 7. The electric push rod 74 drives the gear plate 75 to move again and drives the gear 73 to rotate, causing the three-cam 71 to deflect again and push the push assembly 6 corresponding to the outer fine grinding part 5 to move. This causes the fine grinding part 5 to move and approach the bearing groove, while the rough grinding part 4 resets and moves away. As the processing disk 3 rotates, it drives the fine grinding part 5 to rotate, completing the fine grinding process.

[0063] Step 4: External cutting fluid is introduced into the inlet pipe 12 and into the mounting base 8, and then into the treatment plate 3 through the rotating mounting part 9. It is also sprayed along the spray pipe 11 toward the grinding contact surface to complete the grinding cooling treatment.

[0064] Step 5: During the rotary grinding process, the infrared thermal imager 17 on the outside of the rough grinding section 4 and the fine grinding section 5 detects the temperature at the inner groove of the machined bearing and feeds it back to the external temperature control equipment to adjust the flow rate and temperature of the cutting fluid.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive grinding device for bearing steel rings, comprising a swing arm (1), an assembly mechanism (2), and grinding actuators, characterized in that: The grinding action includes a rough grinding section (4), a fine grinding section (5), and a processing disk (3). The outer surface of the processing disk (3) is provided with elastically fitted push components (6) at equal intervals. The number of rough grinding sections (4) and fine grinding sections (5) is the same, and there are three sets of each. The three sets of rough grinding sections (4) and three sets of fine grinding sections (5) are alternately distributed. The rough grinding sections (4) and fine grinding sections (5) are both installed on the outer end of the push components (6). A three-cam assembly (7) is rotatably mounted inside the processing disk (3). A mounting seat (8) is provided on the front of the processing disk (3). A rotating mounting part (9) is installed inside the mounting seat (8). One end of the rotating mounting part (9) is fixedly connected to the processing disk (3), and the rotating mounting part (9) controls the rotation of the processing disk (3). The three-cam assembly (7) includes three cams (71), an intermediate shaft (72), a gear (73), and a gear plate (75). The gear plate (75) meshes with the gear (73). The gear (73) is fixedly sleeved on the intermediate shaft (72). The intermediate shaft (72) is fixedly sleeved in the three cams (71). When the three cams (71) deflect in the processing disk (3), they respectively control the coarse grinding part (4) and the fine grinding part (5) to contact the inner groove of the bearing steel ring. The push assembly (6) includes a connecting frame (61), a fixed shaft (62), a bearing (63), a push rod (64), and a spring (65). The coarse grinding section (4) includes a mounting ring one (41), a coarse grinding block (42), and a positioning hole one (43). The fine grinding section (5) includes a mounting ring two (51), a fine grinding block (52), and a positioning hole two (53). The coarse grinding block (42) is fixed on the outside of the mounting ring one (41). The positioning hole one (43) is opened on the front of the mounting ring one (41). The fine grinding block (52) is fixed on the outside of the mounting ring two (51). The positioning hole two (53) is opened on the front of the mounting ring two (51). The inner walls of the mounting ring one (41) and the inner walls of the mounting ring two (51) are both fixedly sleeved with bearings and installed in the corresponding push assembly (6) through bearings (63). The number of coarse grinding blocks (42) and fine grinding blocks (52) are three in each case. The three coarse grinding blocks (42) are nested in a ring at equal intervals on the outside of the first mounting ring (41). The three fine grinding blocks (52) are nested in a ring at equal intervals on the outside of the second mounting ring (51). The side of the connecting frame (61) is fitted with locking bolts (18). The locking bolts (18) lock and fix the coarse grinding part (4) through the internally threaded positioning hole one (43) and the fine grinding part (5) through the internally threaded positioning hole two (53). The outer surfaces of the first mounting ring (41) and the second mounting ring (51) are both fitted with infrared thermal imagers (17).

2. The adaptive grinding equipment for bearing steel rings according to claim 1, characterized in that: The assembly mechanism (2) includes an assembly cylinder and a fixing part. The swing arm (1) is fixedly connected to the assembly cylinder. The bearing steel ring to be ground is sleeved in the assembly cylinder. The swing arm (1) swings to control the position of the bearing steel ring. The three-cam assembly (7) also includes an electric push rod (74) and a mounting block (76). The electric push rod (74) is fixed to the front of the processing disk (3) through the mounting block (76) sleeved on the outside. The movable end of the electric push rod (74) is fixedly connected to the toothed plate (75).

3. The adaptive grinding equipment for bearing steel rings according to claim 2, characterized in that: The processing disk (3) includes a disk body (31), a stepped hole (32) and a through hole (33). The stepped hole (32) is located on the outside of the disk body (31), and the through hole (33) is located on the front of the disk body (31).

4. The adaptive grinding equipment for bearing steel rings according to claim 3, characterized in that: The fixed shaft (62) is fixedly connected in the connecting frame (61), the bearing (63) is rotatably sleeved on the outside of the fixed shaft (62), one end of the push rod (64) is fixedly connected to the connecting frame (61), and the other end passes through the stepped hole (32) and extends into the interior of the disc body (31), one end of the spring (65) is fixedly connected in the stepped hole (32), and the other end is fixedly connected to the connecting frame (61).

5. The adaptive grinding equipment for bearing steel rings according to claim 1, characterized in that: The outer side of the processing plate (3) is fixedly fitted with a spray pipe (11), which is symmetrically distributed on both sides of the push assembly (6). The side of the mounting base (8) is fixedly connected with an inlet pipe (12). The mounting base (8) is provided with a rotating communication mechanism (13), which is connected to the inside of the rotating mounting part (9). The inlet pipe (12) injects cutting fluid into the processing plate (3) through the rotating communication mechanism (13) and the rotating mounting part (9), and sprays it out through the spray pipe (11).

6. The adaptive grinding equipment for bearing steel rings according to claim 5, characterized in that: The rotating mounting part (9) includes a mounting post (91), an annular groove (92), an internal cavity (93), and a side opening (94). The annular groove (92) is formed on the outer surface of the mounting post (91). One end of the mounting post (91) is fixedly connected to the disc body (31). The internal cavity (93) is formed inside the mounting post (91). The side opening (94) is formed inside the mounting post (91). The two ends of the side opening (94) are respectively connected to the annular groove (92) and the internal cavity (93). The mounting post (91) Both sides are fixedly connected to a guide tube (15). The other end of the guide tube (15) is fixedly connected to the front of the disc body (31). One end of the guide tube (15) is connected to the internal cavity (93), and the other end is connected to the through hole (33). The outer side of the mounting post (91) is fixedly provided with a mounting set (14). The interior of the mounting post (91) is provided with an adapter cavity (16). The mounting set (14) is aligned and connected with the adapter cavity (16). The toothed plate (75) is movably sleeved in the adapter cavity (16) and the mounting set (14).

7. The adaptive grinding equipment for bearing steel rings according to claim 6, characterized in that: The rotating communication mechanism (13) includes a retaining ring (131), an outer ring groove (132), an inner ring groove (133), and a side opening (134). The retaining ring (131) is fixedly sleeved on the inner wall of the mounting base (8). The outer ring groove (132) is opened on the inner wall of the mounting base (8) and is located outside the retaining ring (131). The inner ring groove (133) is opened on the inner wall of the retaining ring (131). The side opening (134) is opened in the retaining ring (131). The two ends of the side opening (134) are connected to the inner ring groove (133) and the outer ring groove (132) respectively. The liquid inlet pipe (12) is connected to the outer ring groove (132). The power assembly (10) includes a motor frame (101), a motor (102) and a connecting rod (103). The motor frame (101) is fixedly connected to the mounting base (8). The motor (102) is fixedly installed in the motor frame (101). The connecting rod (103) is fixedly connected to the mounting base (8).

8. A grinding method for an adaptive grinding apparatus for bearing steel rings according to any one of claims 1-7, characterized in that: The grinding process includes the following steps: Step 1: Place the bearing to be processed in the assembly mechanism (2), swing arm (1) drives the assembly mechanism (2) to rotate to the processing position, external push mechanism pushes the mounting base (8) to move, and drives the processing plate (3) to move into the assembly mechanism (2); Step 2: Position the coarse grinding section (4) and the fine grinding section (5) in the plane of the bearing groove. Start the three-cam assembly (7). The gear plate (75) drives the gear (73) to rotate and causes the three cams (71) to deflect. The three cams (71) push the corresponding push assembly (6) of the three sets of coarse grinding sections (4) on the outside, causing the push assembly (6) to move laterally and drive the coarse grinding section (4) to move close to and contact the inner wall of the bearing groove. Start the power assembly (10), drive the rotating mounting part (9) to rotate, drive the processing disk (3) to rotate, and cause the coarse grinding section (4) to rotate for coarse grinding. Step 3: After rough grinding, start the three-cam assembly (7), the electric push rod (74) drives the gear plate (75) to move again, and drives the gear (73) to rotate, so that the three-cam (71) deflects again, and pushes the push assembly (6) corresponding to the outer fine grinding part (5) to move, driving the fine grinding part (5) to move and approach the bearing groove, while the rough grinding part (4) resets and moves away. As the processing disk (3) rotates, it drives the fine grinding part (5) to rotate, completing the fine grinding process; Step 4: Input external cutting fluid into the inlet pipe (12) and into the mounting base (8), and input it into the treatment plate (3) by rotating the mounting part (9), and spray it along the spray pipe (11) toward the grinding contact surface to complete the grinding cooling treatment; Step 5: During the rotary grinding process, the infrared thermal imager (17) on the outside of the rough grinding section (4) and the fine grinding section (5) detects the temperature at the inner groove of the machined bearing and feeds it back to the external temperature control device to adjust the flow rate and temperature of the cutting fluid.

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