Self-adaptive grinding equipment for bearing steel ring and grinding method of self-adaptive grinding equipment

Abstract

The invention belongs to the technical field of bearing machining, and discloses self-adaptive grinding equipment for a bearing steel ring and a grinding method.The self-adaptive grinding equipment 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, and pushing assemblies which are elastically connected in a sleeving mode are distributed on the outer side face of the processing disc at equal intervals; the number of the rough grinding parts is the same as that of the fine grinding parts. The three-cam assembly, the rough grinding part and the fine grinding part are matched with the pushing assembly and the processing disc, independent control over the rough grinding part and the fine grinding part which are alternately distributed in a surrounding mode is achieved through the three-cam assembly, and under the deflection action in different directions, telescopic displacement of the rough grinding part and the fine grinding part is controlled correspondingly; different grinding blocks in the rough grinding part and the fine grinding part are matched, in the rotating grinding process, switching of rough grinding and fine grinding actions is rapidly achieved, shutdown treatment is not needed, operation is easy, and switching is rapid.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing processing, and particularly relates to an adaptive grinding device for a bearing steel ring and a grinding method thereof. Background Art

[0002] The bearing steel ring is one of the core components of a rolling bearing, usually made of high-carbon chromium bearing steel, with high hardness, high wear resistance and good fatigue resistance. For the production and processing of the bearing steel ring, the most important step is grinding. For the grinding treatment of the bearing steel ring, the grinding process of the inner groove is usually required.

[0003] In the existing adaptive grinding device for bearing steel rings, during use, in cooperation with the fixedly clamped bearing steel ring, the grinding end is moved to the inner side of the bearing steel ring by means of an action arm, and the groove is ground. In order to ensure high-quality grinding, the rough grinding and fine grinding are usually switched. However, the current switching method requires the rough grinding tool to be pushed out and the movement control of the fine grinding tool, and starts the fine grinding process after the movement and switching. The actual continuous stepped grinding operation is inconvenient, and it is necessary to pause in the middle and perform switching processing, which greatly reduces the grinding efficiency and the overall use effect is not good. Summary of the Invention

[0004] The purpose of the invention is to provide an adaptive grinding device for a bearing steel ring and a grinding method thereof, so as to solve the problems raised in the above background art.

[0005] In order to achieve the above purpose, the invention provides the following technical solutions: an adaptive grinding device for a bearing steel ring and a grinding method thereof, including a swing arm, an assembly mechanism and a grinding action member. The grinding action member includes a rough grinding part, a fine grinding part and a processing disc. Elasticly sleeved pushing components are evenly distributed on the outer side of the processing disc. The number of the rough grinding parts and the fine grinding parts is the same, and both are three groups. The three groups of rough grinding parts and the three groups of fine grinding parts are alternately distributed. The rough grinding parts and the fine grinding parts are both installed at the outer ends of the pushing components. Three cam components are rotatably arranged inside the processing disc. An installation seat is arranged on the front surface of the processing disc. A rotating installation part is installed inside the installation seat. One end of the rotating installation part is fixedly connected to the processing disc, and the rotating installation part controls the rotation of the processing disc.

[0006] The three cam components include three cams, an intermediate shaft, a gear and a toothed plate. The toothed plate is meshed with the gear. The gear is fixedly sleeved on the intermediate shaft. The intermediate shaft is fixedly sleeved in the three cams. When the three cams deflect in the processing disc, they respectively control the rough 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. A 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 further includes an electric push rod and a mounting block. The electric push rod is fixed to the front of the processing disk through the externally sleeved mounting block. The movable end of the electric push rod is fixedly connected to the toothed plate.

[0008] Preferably, the processing disk includes a disk body, a stepped hole and a through hole. The stepped hole is formed on the outer side of the disk body. The through hole is formed on the front of the disk body.

[0009] Preferably, the pushing 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 outer side 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 disk 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 rough grinding part includes a first mounting ring, rough grinding blocks and a first positioning hole. The fine grinding part includes a second mounting ring, fine grinding blocks and a second positioning hole. The rough grinding blocks are fixed on the outer side of the first mounting ring. The first positioning hole is formed on the front of the first mounting ring. The fine grinding blocks are fixed on the outer side of the second mounting ring. The second positioning hole is formed on the front of the second mounting ring. The inner walls of the first mounting ring and the second mounting ring are both fixedly sleeved with bearings and are installed in the corresponding pushing assemblies through the bearings.

[0011] Preferably, the number of both the rough grinding blocks and the fine grinding blocks is three. The three rough grinding blocks are nested on the outer side of the first mounting ring at equal intervals in a ring shape. The three fine grinding blocks are nested on the outer side of the second mounting ring at equal intervals in a ring shape. A locking bolt is sleeved on the side of the connecting frame. The rough grinding part is locked and fixed through the first positioning hole with internal threads, and the fine grinding part is locked and fixed through the second positioning hole with internal threads. Infrared thermal imagers are nested on the outer sides of the first mounting ring and the second mounting ring.

[0012] Preferably, a liquid spraying pipe is fixedly sleeved on the outer side of the processing disk. The liquid spraying pipes are symmetrically distributed on both sides of the pushing assembly. A liquid inlet pipe is fixedly connected to the side of the mounting seat. A rotating communication mechanism is provided inside the mounting seat. The rotating communication mechanism is internally communicated with the rotating mounting part. The cutting fluid is injected into the processing disk through the liquid inlet pipe, the rotating communication mechanism and the rotating mounting part and is sprayed out through the liquid spraying pipe.

[0013] Preferably, the rotating mounting part includes a mounting post, a first annular groove, an internal cavity, and a first side port. The first annular groove is formed on the outer side 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 first side port is formed inside the mounting post. Two ends of the first side port are respectively communicated with the first annular groove and the internal cavity. Conducting pipes are fixedly connected to both sides of the mounting post. The other ends of the conducting pipes are fixedly connected to the front surface of the disc body. One end of the conducting pipe is communicated with the internal cavity and the other end is communicated with the through hole. A fitting sleeve is fixedly arranged on the outer side surface of the mounting post. An adapting cavity is formed inside the mounting post. The fitting sleeve is aligned and communicated with the adapting cavity. The toothed plate is movably sleeved in the adapting cavity and the fitting sleeve.

[0014] Preferably, the rotating communication mechanism includes a snap ring, an outer annular groove, an inner annular groove, and a second side port. The snap ring is fixedly sleeved on the inner wall of the mounting seat. The outer annular groove is formed on the inner wall of the mounting seat and is located outside the snap ring. The inner annular groove is formed on the inner wall of the snap ring. The second side port is formed in the snap ring. Two ends of the second side port are respectively connected and communicated with the inner annular groove and the outer annular groove. The liquid inlet pipe is communicated with the outer annular groove. The power assembly includes a motor bracket, a motor, and a connecting rod. The motor bracket is fixedly connected to the mounting seat. The motor is fixedly installed in the motor bracket. The connecting rod is fixedly connected to the mounting seat.

[0015] A grinding method for an adaptive grinding device of a bearing steel ring 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 pushing mechanism pushes the mounting seat to move and drives the processing disc to move into the assembly mechanism.

[0017] Step 2: Make the rough grinding part and the fine grinding part be located in the plane where the bearing groove is located. Start the three-cam assembly. The toothed plate drives the gear to rotate and makes the three cams deflect. The three cams push the pushing components corresponding to the three outer rough grinding parts, so that the pushing components move horizontally and drive the rough grinding parts to move closer to and contact the inner wall of the bearing groove. Start the power assembly to drive the rotating mounting part to rotate and drive the processing disc to rotate, so that the rough grinding parts rotate for rough grinding treatment.

[0018] Step 3: After the rough grinding treatment, start the three-cam assembly. The electric push rod drives the toothed plate to act again and drives the gear to rotate, so that the three cams deflect again and push the pushing components corresponding to the outer fine grinding parts to move, driving the fine grinding parts to move closer to the bearing groove. At the same time, the rough grinding parts reset and move away. As the processing disc rotates, drive the fine grinding parts to rotate to complete the fine grinding treatment.

[0019] Step 4: Input the external cutting fluid into the liquid inlet pipe and then into the mounting base. Then, through the rotation of the mounting part, the cutting fluid is input into the processing tray and sprayed towards the grinding contact surface along the liquid spraying pipe to complete the grinding temperature reduction treatment;

[0020] Step 5: During the rotation grinding process, the infrared thermal imagers on the outer sides of the rough grinding part and the fine grinding part detect the temperature at the inner groove of the processed bearing and feed it back to the external temperature control device to regulate the flow rate and temperature of the cutting fluid.

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

[0022] (1) By using the three-cam assembly, the rough grinding part and the fine grinding part, and cooperating with the pushing assembly and the processing tray, the present invention realizes the independent control of the alternately circumferentially distributed rough grinding part and fine grinding part through the three-cam assembly. Under the deflection action in different directions, the telescopic displacements of the rough grinding part and the fine grinding part are respectively controlled. Cooperating with different grinding blocks in the rough grinding part and the fine grinding part, during the rotation grinding process, the rapid switching between the rough grinding and fine grinding actions can be achieved without stopping the machine, with simple operation and quick switching.

[0023] (2) By using the rotating mounting part, the rotating connection mechanism and the processing tray, the present invention realizes the introduction treatment of the cutting fluid. Cooperating with the liquid spraying pipes distributed on the outer side of the processing tray, the cutting fluid is directly input into the liquid spraying pipes. Cooperating with the distribution treatment of the rough grinding part and the fine grinding part on the outer side of the processing tray, the grinding contact surfaces of the rough grinding part and the fine grinding part can be directly and precisely sprayed with the cutting fluid. During the actual grinding process, the cutting fluid is precisely sprayed at the grinding position to improve the temperature reduction and flushing effects, and reduce the splashing problem caused by the external spraying of the cutting fluid, with high precision of liquid spraying for temperature reduction and flushing and the effect of controlling environmental splashing.

[0024] (3) By using the rotatable mounting ring 1 and mounting ring 2 in the rough grinding part and the fine grinding part, and cooperating with the assembly of the locking bolts and the positioning holes 1 and 2, the present invention realizes the fixation of the rotating rough grinding part and fine grinding part, and after the fixation is released, the rough grinding part and the fine grinding part can be deflected to switch the grinding blocks on the outer sides of the rough grinding part and the fine grinding part. When local grinding blocks fail and are damaged, the spare grinding blocks can be quickly switched for use, with simple operation. Description of the Drawings

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

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

[0027] Figure 3 is a schematic cross-sectional view of the processing tray of the present invention;

[0028] Figure 4Explosion schematic diagram of the rough grinding part and the pushing component of the present invention;

[0029] Figure 5 Schematic diagram of the fine grinding part of the present invention;

[0030] Figure 6 Cross-sectional schematic diagram of the mounting seat and the rotating mounting part of the present invention;

[0031] Figure 7 Schematic diagram of the three-cam component of the present invention;

[0032] Figure 8 Explosion schematic diagram of the rotating mounting part and the processing disk of the present invention;

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

[0034] Figure 10 Cross-sectional schematic diagram of the mounting seat and the rotating connection mechanism of the present invention.

[0035] In the figure: 1, swing arm; 2, assembly mechanism; 3, processing disk; 31, disk body; 32, stepped hole; 33, through hole; 4, rough grinding part; 41, mounting ring one; 42, rough grinding block; 43, positioning hole one; 5, fine grinding part; 51, mounting ring two; 52, fine grinding block; 53, positioning hole two; 6, pushing component; 61, connecting frame; 62, fixed shaft; 63, bearing; 64, push rod; 65, spring; 7, three-cam component; 71, three-cam; 72, intermediate shaft; 73, gear; 74, electric push rod; 75, toothed plate; 76, mounting block; 8, mounting seat; 9, rotating mounting part; 91, mounting column; 92, annular groove one; 93, internal cavity; 94, side port one; 10, power component; 101, motor frame; 102, motor; 103, connecting rod; 11, liquid spraying pipe; 12, liquid inlet pipe; 13, rotating connection mechanism; 131, snap ring; 132, outer annular groove; 133, inner annular groove; 134, side port two; 14, fitting sleeve; 15, conducting pipe; 16, fitting cavity; 17, infrared thermal imager; 18, locking bolt. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1 to 10As shown in the figure, an adaptive grinding device for a bearing steel ring and its grinding method are provided in an embodiment of the present invention, including a swing arm 1, an assembly mechanism 2, and a grinding actuator. The grinding actuator includes a rough grinding part 4, a fine grinding part 5, and a processing disk 3. Elastic socketed push components 6 are evenly distributed on the outer side of the processing disk 3. The numbers of the rough grinding part 4 and the fine grinding part 5 are the same, and both are three groups. The three groups of rough grinding parts 4 and the three groups of fine grinding parts 5 are alternately distributed. The rough grinding part 4 and the fine grinding part 5 are both installed at the outer ends of the push components 6. Three cam components 7 are rotatably arranged inside the processing disk 3. An installation seat 8 is provided on the front surface of the processing disk 3. A rotating installation part 9 is installed inside the installation seat 8. One end of the rotating installation part 9 is fixedly connected to the processing disk 3, and the rotating installation part 9 controls the rotation of the processing disk 3. The three cam components 7 include three cams 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 cams 71. When the three cams 71 deflect in the processing disk 3, they respectively control the rough grinding part 4 and the fine grinding part 5 to contact the inner groove of the bearing steel ring.

[0038] Embodiment 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 moving mechanism pushes the installation seat 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. Start the three cam components 7. The electric push rod 74 drives the toothed plate 75 to move, and drives the meshed gear 73 to rotate, and makes the three cams 71 deflect. The three cams 71 push the push components 6 corresponding to the three outer rough grinding parts 4, so that the push rod 64 in the push component 6 moves, stretches the spring 65, and drives the rough grinding part 4 to move closer to and contact the inner wall of the bearing groove. Start the power component 10, drive the rotating installation part 9 to rotate, and drive the connected processing disk 3 to rotate, so that the rough grinding part 4 rotates for rough grinding treatment. After the rough grinding treatment, start the three cam components 7. The electric push rod 74 drives the toothed plate 75 to act again, drives the gear 73 to rotate, makes the three cams 71 deflect again, and pushes the push components 6 corresponding to the outer fine grinding parts 5 to move, drives the fine grinding part 5 to move closer to the bearing groove, and at the same time the rough grinding part 4 returns and moves away. As the processing disk 3 rotates, it drives the fine grinding part 5 to rotate to complete the fine grinding treatment. Input the external cutting fluid into the liquid inlet pipe 12 and input it into the rotating communication mechanism 13 of the installation seat 8. The cutting fluid enters the inner ring groove 133 along the outer ring groove 132 and the side port two 134, and enters the inner cavity 93 of the rotating installation part 9 through the side port one 94, and is input into the processing disk 3 through the conduction pipe 15 on the outside of the rotating installation part 9. The cutting fluid entering the processing disk 3 sprays toward the grinding contact surface along the liquid spraying pipe 11 to complete the grinding cooling treatment.

[0039] First, by utilizing the three-cam assembly 7, the rough grinding part 4, and the finish grinding part 5, cooperating with the pushing assembly 6 and the processing disk 3, independent control of the alternately circumferentially distributed rough grinding part 4 and finish grinding part 5 is achieved through the three-cam assembly 7. Under the deflection action in different directions, the telescopic displacements of the rough grinding part 4 and the finish grinding part 5 are respectively controlled. Cooperating with different grinding blocks in the rough grinding part 4 and the finish grinding part 5, during the rotational grinding process, the rapid switching between rough grinding and finish grinding operations can be achieved without stopping the machine for processing. The operation is simple and the switching is fast.

[0040] In addition, by utilizing the rotating mounting part 9, the rotating connection mechanism 13, and the processing disk 3, the introduction treatment of the cutting fluid is realized. Cooperating with the liquid spraying pipes 11 distributed on the outer side of the processing disk 3, the cutting fluid is directly input into the liquid spraying pipes 11. Cooperating with the distribution treatment of the rough grinding part 4 and the finish grinding part 5 on the outer side of the processing disk 3, the grinding contact surfaces of the rough grinding part 4 and the finish grinding part 5 can be directly and precisely sprayed with the cutting fluid. During the actual grinding processing, the cutting fluid is precisely sprayed at the grinding position, improving the cooling and flushing effects and reducing the sputtering problem caused by external spraying of the cutting fluid. It has a high precision of liquid spraying for cooling and flushing and an effect of controlling environmental sputtering.

[0041] Embodiment 2: When the grinding blocks in the rough grinding part 4 or the finish grinding part 5 are worn out and ineffective, loosen the locking bolts 18, rotate the mounting ring one 41, and switch the rough grinding blocks 42 on the outer side of the rough grinding part 4. Similarly, adjust and switch the finish grinding blocks 52 in the finish grinding part 5 to complete the rapid switching.

[0042] First, by utilizing the rotatable mounting ring one 41 and mounting ring two 51 in the rough grinding part 4 and the finish grinding part 5, cooperating with the assembly of the locking bolts 18 and the positioning holes one 43 and positioning holes two 53, the fixation of the rotatable rough grinding part 4 and finish grinding part 5 is achieved. And after the fixation is released, the rough grinding part 4 and the finish grinding part 5 can be deflected to switch the grinding blocks on the outer sides of the rough grinding part 4 and the finish grinding part 5. When local grinding blocks are worn out and damaged, the spare grinding blocks can be quickly switched for use, and the operation is simple.

[0043] Among them, the assembly mechanism 2 includes an assembly cylinder and a fixing part. The swing arm 1 is fixedly connected to the assembly cylinder. A 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 further includes an electric push rod 74 and a mounting block 76. The electric push rod 74 is fixed on the front surface of the processing disk 3 through the externally sleeved mounting block 76. 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 cooperate to complete the existing feeding and positioning processing, preparing for the grinding work. The electric push rod 74 in the three-cam assembly 7 controls the movement of the toothed plate 75 to realize the rotation of the gear 73 and complete the deflection control of the three-cam 71.

[0045] Among them, the processing disk 3 includes a disk body 31, a stepped hole 32, and a through hole 33. The stepped hole 32 is opened on the outer side of the disk body 31, and the through hole 33 is opened on the front surface of the disk body 31.

[0046] The processing disk 3 is used to assemble the pushing component 6, provide a control space, allow the action processing of the three-cam component 7, and achieve the internal conduction of the cutting fluid to guide the ejection of the cutting fluid.

[0047] Among them, the pushing component 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 outer side 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 disk 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 using the pushing component 6 to provide telescopic driving force and cooperating with the elastic reset of the spring 65, the stepped hole 32 provides an installation space for the spring 65.

[0049] Among them, the rough grinding part 4 includes a first mounting ring 41, rough grinding blocks 42, and a first positioning hole 43. The fine grinding part 5 includes a second mounting ring 51, fine grinding blocks 52, and a second positioning hole 53. The rough grinding blocks 42 are fixed on the outer side of the first mounting ring 41. The first positioning hole 43 is opened on the front surface of the first mounting ring 41. The fine grinding blocks 52 are fixed on the outer side of the second mounting ring 51. The second positioning hole 53 is opened on the front surface of the second mounting ring 51. The inner walls of the first mounting ring 41 and the second mounting ring 51 are fixedly sleeved with bearings and are installed in the corresponding pushing component 6 through the bearing 63.

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

[0051] Among them, the number of both the rough grinding blocks 42 and the fine grinding blocks 52 is three. The three rough grinding blocks 42 are nested on the outer side of the first mounting ring 41 at equal intervals in a ring shape. The three fine grinding blocks 52 are nested on the outer side of the second mounting ring 51 at equal intervals in a ring shape. A locking bolt 18 is sleeved on the side surface of the connecting frame 61. The locking bolt 18 locks and fixes the rough grinding part 4 through the internally threaded first positioning hole 43, and locks and fixes the fine grinding part 5 through the internally threaded second positioning hole 53. Infrared thermal imagers 17 are nested on the outer side surfaces of the first mounting ring 41 and the second mounting ring 51.

[0052] Utilizing multiple groups of rough grinding blocks 42 and fine grinding blocks 52 distributed around, it is convenient to quickly switch when the grinding blocks fail and are damaged, reducing the replacement difficulty and cost. Moreover, during the rotational grinding process, the infrared thermal imagers 17 on the outer sides of the rough grinding part 4 and the fine grinding part 5 detect the temperature at the inner groove of the processed bearing and feedback it to the external temperature control device to regulate the flow rate and temperature of the cutting fluid, adaptively cooling during the grinding process in terms of time. And the infrared thermal imager 17 is a prior art, with the specific model being FLIR A655sc.

[0053] Among them, a liquid spraying pipe 11 is fixedly sleeved on the outer side surface of the processing disk 3. The liquid spraying pipes 11 are symmetrically distributed on both sides of the pushing component 6. A liquid inlet pipe 12 is fixedly connected to the side surface of the mounting seat 8. A rotational connection mechanism 13 is arranged inside the mounting seat 8. The rotational connection mechanism 13 is internally connected to the rotational mounting part 9. The cutting fluid is injected into the processing disk 3 through the rotational connection mechanism 13 and the rotational mounting part 9 and is ejected through the liquid spraying pipe 11.

[0054] The liquid spraying pipes 11 are correspondingly distributed with the pushing component 6 and are oriented towards the grinding blocks after the extended displacement to complete the accurately directed spraying and cooling treatment, avoiding the sputtering problem caused by external spraying and improving the cooling effect at the same time.

[0055] Among them, the rotational mounting part 9 includes a mounting column 91, a first annular groove 92, an internal cavity 93, and a first side port 94. The first annular groove 92 is formed on the outer side surface of the mounting column 91. One end of the mounting column 91 is fixedly connected to the disk body 31. The internal cavity 93 is formed inside the mounting column 91. The first side port 94 is formed inside the mounting column 91. Both ends of the first side port 94 are respectively connected to the first annular groove 92 and the internal cavity 93. Conducting pipes 15 are fixedly connected to both sides of the mounting column 91. The other ends of the conducting pipes 15 are fixedly connected to the front surface of the disk body 31. One end of the conducting pipe 15 is connected to the internal cavity 93 and the other end is connected to the through hole 33. A fitting sleeve 14 is fixedly arranged on the outer side surface of the mounting column 91. An adapting cavity 16 is formed inside the mounting column 91. The fitting sleeve 14 is aligned and connected to the adapting cavity 16. The toothed plate 75 is movably sleeved in the adapting cavity 16 and the fitting sleeve 14.

[0056] The rotational mounting part 9, on the one hand, connects the processing disk 3 to drive the rotation of the processing disk 3, and on the other hand, realizes the conducting function to ensure the conduction of the cutting fluid to the processing disk 3, and at the same time provides the support and movement space for the toothed plate 75.

[0057] Among them, the rotating connection mechanism 13 includes a snap ring 131, an outer ring groove 132, an inner ring groove 133, and a side port two 134. The snap ring 131 is fixedly sleeved on the inner wall of the mounting seat 8. The outer ring groove 132 is opened on the inner wall of the mounting seat 8 and is located outside the snap ring 131. The inner ring groove 133 is opened on the inner wall of the snap ring 131. The side port two 134 is opened in the snap ring 131. The two ends of the side port two 134 are respectively communicated with the inner ring groove 133 and the outer ring groove 132. The liquid inlet pipe 12 is communicated with 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 seat 8. The motor 102 is fixedly installed in the motor frame 101. The connecting rod 103 is fixedly connected to the mounting seat 8.

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

[0059] A grinding method for an adaptive grinding device of a bearing steel ring includes the following grinding steps:

[0060] The first step: 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 pushing mechanism pushes the mounting seat 8 to move and drives the processing disk 3 to move into the assembly mechanism 2.

[0061] The second step: Make the rough grinding part 4 and the fine grinding part 5 be located in the plane where the bearing groove is located. Start the three-cam assembly 7. The toothed plate 75 drives the gear 73 to rotate and deflects the three-cam 71. The three-cam 71 pushes the pushing components 6 corresponding to the three outer rough grinding parts 4, causing the pushing components 6 to move horizontally and driving the rough grinding parts 4 to move closer to and contact the inner wall of the bearing groove. Start the power assembly 10 to drive the rotating mounting part 9 to rotate, drive the processing disk 3 to rotate, and make the rough grinding parts 4 rotate for rough grinding.

[0062] The third step: After the rough grinding process, start the three-cam assembly 7. The electric push rod 74 drives the toothed plate 75 to act again, drives the gear 73 to rotate, deflects the three-cam 71 again, and pushes the pushing components 6 corresponding to the outer fine grinding parts 5 to move, driving the fine grinding parts 5 to move closer to the bearing groove. At the same time, the rough grinding parts 4 reset and move away. As the processing disk 3 rotates, drive the fine grinding parts 5 to rotate to complete the fine grinding process.

[0063] The fourth step: Input the external cutting fluid into the liquid inlet pipe 12, then into the mounting seat 8, and through the rotating mounting part 9 into the processing disk 3, and spray it toward the grinding contact surface along the liquid spraying pipe 11 to complete the grinding temperature reduction process.

[0064] Step 5: During the rotary grinding process, the infrared thermal imagers 17 outside the rough grinding part 4 and the fine grinding part 5 detect the temperature at the inner groove of the processed bearing and feedback it to the external temperature control device to regulate the flow rate and temperature of the cutting fluid.

[0065] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive grinding device for a bearing steel ring, comprising a swing arm (1), an assembly mechanism (2) and a grinding action member, characterized in that: The grinding action part comprises a rough grinding part (4), a fine grinding part (5) and a processing disc (3); elastic sleeve-connected pushing components (6) are evenly spaced on the outer side surface of the processing disc (3); the rough grinding parts (4) and the fine grinding parts (5) are the same in number and are in three groups; the three groups of rough grinding parts (4) and the three groups of fine grinding parts (5) are alternately distributed; the rough grinding parts (4) and the fine grinding parts (5) are both mounted on the outer end of the pushing component (6); a three-cam component (7) is rotatably provided inside the processing disc (3); a mounting seat (8) is provided on the front side of the processing disc (3); a rotating mounting part (9) is mounted inside the mounting seat (8); one end of the rotating mounting part (9) is fixedly connected to the processing disc (3), and the rotating mounting part (9) controls the rotation of the processing disc (3); The three-cam assembly (7) comprises three cams (71), an intermediate shaft (72), a gear (73) and a toothed plate (75); the toothed plate (75) is meshedly connected 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 rough grinding part (4) and the fine grinding part (5) to contact with the inner groove of the bearing steel ring.

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

3. The adaptive grinding device for a bearing steel ring according to claim 2, characterized in that: The processing disk (3) comprises a disk body (31), a stepped hole (32) and a through hole (33); the stepped hole (32) is opened on the outside of the disk body (31), and the through hole (33) is opened on the front side of the disk body (31).

4. The adaptive grinding device for a bearing steel ring according to claim 3, characterized in that: The pushing assembly (6) comprises 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 to the connecting frame (61); the bearing (63) is rotatably sleeved on the outer side 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 to the inside of the disk body (31); one end of the spring (65) is fixedly connected to the stepped hole (32), and the other end is fixedly connected to the connecting frame (61).

5. The adaptive grinding device for bearing steel ring according to claim 4, characterized in that: The rough grinding section (4) comprises a mounting ring (41), a rough grinding block (42) and a positioning hole (43); the fine grinding section (5) comprises a mounting ring (51), a fine grinding block (52) and a positioning hole (53); the rough grinding block (42) is fixed to the outer side of the mounting ring (41); the positioning hole (43) is provided on the front side of the mounting ring (41); the fine grinding block (52) is fixed to the outer side of the mounting ring (51); the positioning hole (53) is provided on the front side of the mounting ring (51); the inner wall of the mounting ring (41) and the inner wall of the mounting ring (51) are both fixedly sleeved with the bearing and are installed in the corresponding pushing assembly (6) through the bearing (63).

6. The adaptive grinding device for a bearing steel ring according to claim 5, characterized in that: The number of the rough grinding blocks (42) and the number of the fine grinding blocks (52) are both three. The three rough grinding blocks (42) are nested in an annular manner at equal intervals on the outside of the mounting ring 1 (41). The three fine grinding blocks (52) are nested in an annular manner at equal intervals on the outside of the mounting ring 2 (51). The side surface of the connecting frame (61) is sleeved with a locking bolt (18). The locking bolt (18) locks and fixes the rough grinding part (4) through the positioning hole 1 (43) with an internal thread, and locks and fixes the fine grinding part (5) through the positioning hole 2 (53) with an internal thread. The outer side surfaces of the mounting ring 1 (41) and the mounting ring 2 (51) are both nested with infrared thermal imagers (17).

7. The adaptive grinding device for bearing steel ring according to claim 1, characterized in that: The outer side surface of the processing disc (3) is fixedly sleeved with a liquid spray pipe (11), and the liquid spray pipe (11) is symmetrically distributed on both sides of the pushing component (6). The side surface of the mounting seat (8) is fixedly connected with a liquid inlet pipe (12), and the interior of the mounting seat (8) is provided with a rotating communication mechanism (13), and the rotating communication mechanism (13) is connected with the interior of the rotating mounting part (9). The liquid inlet pipe (12) injects cutting fluid into the processing disc (3) through the rotating communication mechanism (13) and the rotating mounting part (9), and sprays it out through the liquid spray pipe (11).

8. The adaptive grinding device for a bearing steel ring according to claim 7, characterized in that: The rotating mounting portion (9) comprises a mounting column (91), an annular groove (92), an internal cavity (93) and a side opening (94), wherein the annular groove (92) is provided on the outer surface of the mounting column (91), one end of the mounting column (91) is fixedly connected to the disk body (31), the internal cavity (93) is provided inside the mounting column (91), the side opening (94) is provided inside the mounting column (91), and the two ends of the side opening (94) are respectively connected to the annular groove (92) and the internal cavity (93), and the mounting column (91) Both sides of the mounting column (91) are fixedly connected with a conducting tube (15), the other end of the conducting tube (15) is fixedly connected to the front side of the disk body (31), one end of the conducting tube (15) is connected to the internal cavity (93), and the other end is connected to the through hole (33), the outer side surface of the mounting column (91) is fixedly provided with an assembly sleeve (14), the interior of the mounting column (91) is provided with an adapting cavity (16), the assembly sleeve (14) is aligned and connected with the adapting cavity (16), and the tooth plate (75) is movably sleeved in the adapting cavity (16) and the assembly sleeve (14).

9. The adaptive grinding device for a bearing steel ring according to claim 8, characterized in that: The rotating connecting mechanism (13) comprises a snap ring (131), an outer ring groove (132), an inner ring groove (133) and a second side opening (134); the snap ring (131) is fixedly sleeved on the inner wall of the mounting seat (8); the outer ring groove (132) is provided on the inner wall of the mounting seat (8) and is located on the outer side of the snap ring (131); the inner ring groove (133) is provided on the inner wall of the snap ring (131); the second side opening (134) is provided in the snap ring (131); and the side opening (134) is provided in the snap ring (131). The two ends of the second surface 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) comprises a motor frame (101), a motor (102) and a connecting rod (103); the motor frame (101) is fixedly connected to the mounting seat (8); the motor (102) is fixedly mounted in the motor frame (101); and the connecting rod (103) is fixedly connected to the mounting seat (8).

10. A grinding method for a bearing steel ring using an adaptive grinding device according to any one of claims 1 to 9, characterized in that: The grinding steps include: The first step: placing 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 driving mechanism drives the mounting seat (8) to move, and drives the processing plate (3) to move into the assembly mechanism (2); Step 2: The rough grinding part (4) and the fine grinding part (5) are located in the plane where the bearing groove is located, the three-cam assembly (7) is started, the tooth plate (75) drives the gear (73) to rotate, and the three cams (71) are deflected, and the three cams (71) push the push assemblies (6) corresponding to the three outer groups of rough grinding parts (4), so that the push assemblies (6) move laterally and drive the rough grinding part (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 make the rough grinding part (4) rotate to perform the rough grinding process; Step 3: After the rough grinding process, the three-cam assembly (7) is started, and the electric push rod (74) drives the tooth plate (75) to move again, and drives the gear (73) to rotate, so that the three cams (71) are deflected again, and the push assembly (6) corresponding to the outer fine grinding part (5) is pushed to move, and the fine grinding part (5) is driven to move and approach the bearing groove, and the rough grinding part (4) is reset and moved away, and as the processing disk (3) rotates, the fine grinding part (5) is driven to rotate, and the fine grinding process is completed; Step 4: external cutting fluid is input into the liquid inlet pipe (12), and then into the mounting seat (8), and then into the processing disc (3) through the rotating mounting part (9), and then sprayed along the liquid spray pipe (11) toward the grinding contact surface to complete the grinding cooling treatment; Step 5: During the rotational 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 of the inner groove of the processed bearing and feeds it back to the external temperature control device to regulate the flow and temperature of the cutting fluid.

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