A grinding device and grinding method for special-shaped bearing ring

Abstract

The present invention discloses a grinding processing device for a special-shaped bearing ring, comprising a chuck bracket, a chuck, a gate-shaped bracket and a power element. The chuck is rotatably installed on the chuck bracket, the gate-shaped bracket is mounted astride the outer sides of the chuck bracket and the chuck, a grinding tool mechanism is installed on the gate-shaped bracket, the grinding tool mechanism comprises a grinding tool seat which is installed for transverse movement, a rod-shaped grinding tool is rotatably installed on the grinding tool seat, the power element and the chuck are connected in transmission, and each time the chuck rotates an angle, a groove of the bearing ring workpiece will fall on the motion trajectory of the rod-shaped grinding tool, a linkage mechanism is installed in the gate-shaped bracket, and the linkage mechanism is connected in transmission with the power element and the grinding tool seat respectively. The present invention adopts a chuck to clamp the bearing ring workpiece, and realizes the fixed-angle rotation of the bearing ring workpiece by the power element. Each time it rotates an angle, the grinding tool mechanism can link and control the rod-shaped grinding tool to approach the corresponding groove to complete the groove grinding processing operation. The present invention can realize automated and efficient grinding processing operations.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing component processing technology, and more specifically, to a grinding processing device and a grinding processing method for a special-shaped bearing ring. Background Art

[0002] Bearings are an important transmission component found in various types of mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Bearing products are widely used in various industries such as automobiles, aviation, navigation, and precision equipment. Bearing rings are important components of bearing products, such as Figure 4 The figure shows a special-shaped bearing ring used in aviation bearings. Its characteristic is that a number of circumferentially evenly distributed grooves are opened on one end face. These grooves have high roughness requirements, so each groove needs to be polished. How to efficiently complete the groove polishing process has become a difficult problem that the company needs to solve urgently, which is the result of this case. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a grinding processing device and a grinding processing method for special-shaped bearing rings. The present invention adopts a chuck to clamp the bearing ring workpiece, and realizes the fixed-angle rotation of the bearing ring workpiece through a power element. After each rotation of an angle, the grinding tool mechanism can link and control the rod-shaped grinding tool to approach the corresponding groove to complete the groove grinding processing operation. The present invention has the advantage of a high degree of automation, and the automatic grinding processing of all grooves can be completed after one clamping.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A grinding processing device for a special-shaped bearing ring, used for grinding processing operations on the grooves of a bearing ring workpiece, comprises a chuck bracket, a chuck, a gate-shaped bracket and a power element, the chuck is rotatably mounted on the chuck bracket, the chuck can be fixedly clamped on the bearing ring workpiece, the gate-shaped bracket is mounted across the chuck bracket and the outer side of the chuck, a grinding tool mechanism is mounted on the gate-shaped bracket, the grinding tool mechanism comprises a grinding tool seat mounted for transverse movement, a rod-shaped grinding tool is rotatably mounted on the grinding tool seat, the rod-shaped grinding tool is mounted vertically downward, the power element is transmission-connected to the chuck, the power element drives the chuck to rotate, and each time the chuck rotates an angle, a groove of the bearing ring workpiece will fall on the motion trajectory of the rod-shaped grinding tool, a linkage mechanism is installed in the gate-shaped bracket, the linkage mechanism is transmission-connected to the power element and the grinding tool seat respectively, and the lateral movement of the grinding tool seat can be driven by the linkage mechanism.

[0006] Furthermore, the mold mechanism also includes an outer frame, which is fixedly installed above the chuck. Two parallel guide rods are fixedly installed inside the outer frame. The mold seat is matched and inserted into the two guide rods. A first motor is installed on the mold seat, and the output shaft of the first motor is connected to the rod-shaped mold.

[0007] Furthermore, the power element includes a second motor and a reducer, the second motor is installed at the input end of the reducer, an angle drive gear is installed on the output shaft of the reducer, the chuck is fixedly connected to the angle drive shaft, the angle drive shaft extends toward the power element and is fixedly connected to the angle transmission gear, the angle drive gear adopts an incomplete gear, and the angle drive gear is provided with an arc-shaped rack, and during the rotation of the angle drive gear, the arc-shaped rack can engage with the angle transmission gear.

[0008] Furthermore, each time the second motor is started, it can drive the angle driving gear to rotate one circle.

[0009] Furthermore, the linkage mechanism includes a telescopic drive disk, a pipe sleeve and a vertical rod, the telescopic drive disk is fixedly connected to the output shaft of the reducer, the pipe sleeve is upright and fixed to the door-shaped bracket, the vertical rod is upright and matched with the pipe sleeve, the pipe sleeve is arranged directly above the telescopic drive disk, the bottom of the vertical rod contacts the outer edge of the telescopic drive disk, the top of the vertical rod is rotatably installed with a collision wheel, the grinding tool seat is connected to a connecting rod, and a triangular linkage block is installed on the connecting rod, the triangular linkage block is provided with an inclined surface, the inclined surface is arranged downward, and the inclined surface is arranged on the movement path of the collision wheel.

[0010] Furthermore, a notch is provided on the outer edge of the telescopic driving disc, and the notch of the telescopic driving disc and the arc-shaped rack of the angle driving gear are arranged in the same direction.

[0011] Furthermore, a spring is sleeved on the outer side of the guide rod, and the elastic force of the spring can drive the mold seat to move toward the power element.

[0012] Furthermore, the door-shaped bracket is also equipped with a disassembly and assembly auxiliary mechanism, which includes a push cylinder and a push seat plate. The push cylinder is fixedly installed above the grinding tool seat, and the push seat plate is upright installed on the upper end surface of the grinding tool seat. The push seat plate is arranged on the outward extension path of the push cylinder piston rod.

[0013] A grinding method for a special-shaped bearing ring is implemented using a grinding device for a special-shaped bearing ring, comprising the following steps:

[0014] (a) Start the disassembly and assembly auxiliary mechanism and push the grinding tool holder away from the chuck through the push cylinder so that a gap is formed between the rod-shaped grinding tool and the chuck to allow the bearing ring workpiece to be installed;

[0015] (b) Adjust the installation position of the bearing ring workpiece on the chuck so that one of the grooves faces the rod-shaped grinding tool;

[0016] (c) starting the rotation of the rod-shaped grinding tool, closing the disassembly and assembly auxiliary mechanism, retracting the piston rod of the push cylinder, and moving the rod-shaped grinding tool toward the groove to grind the groove;

[0017] (d) After one groove is machined, the power element is activated. The power element first creates an effect where the rod-shaped grinding tool is moved away from the groove, so that the rod-shaped grinding tool does not affect the rotation of the bearing ring workpiece. The power element then drives the bearing ring workpiece to rotate at a fixed angle. After the rotation, another groove will be directly opposite the rod-shaped grinding tool. After the rod-shaped grinding tool is reset, it can grind the other groove.

[0018] (e) After all the grooves are processed one by one, the disassembly and assembly auxiliary mechanism is started again to leave space for the installation of the bearing ring workpiece, and the next bearing ring workpiece is replaced for processing.

[0019] The beneficial effects of the present invention are:

[0020] The present invention adopts a chuck to clamp the bearing ring workpiece, and realizes the fixed-angle rotation of the bearing ring workpiece through a power element. Each time it rotates an angle, the grinding tool mechanism can control the rod-shaped grinding tool to approach the corresponding groove to complete the groove grinding operation. The present invention has the advantage of a high degree of automation. After one clamping, the automatic grinding of all grooves can be completed. The application of the present invention can well solve the groove processing problem of special-shaped bearing rings and meet the needs of enterprises for efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural diagram of a grinding and processing device for a special-shaped bearing ring in this embodiment;

[0022] Figure 2 Schematic diagram of the lateral internal structure of a grinding and processing device for a special-shaped bearing ring in this embodiment;

[0023] Figure 3 This is a front view of the mounting structure of the angle drive gear and the telescopic drive disc in this embodiment;

[0024] Figure 4 The three-dimensional shape drawing of the bearing ring workpiece that needs to be processed.

[0025] Figure numerals: chuck bracket 1, angle drive shaft 11, angle transmission gear 12, chuck 2, gate bracket 3, grinding tool mechanism 4, grinding tool seat 41, rod-shaped grinding tool 42, outer frame 43, guide rod 44, spring 45, first motor 46, power element 5, second motor 51, reducer 52, linkage mechanism 6, angle drive gear 61, arc-shaped rack 611, telescopic drive disk 62, notch groove 621, pipe sleeve 63, vertical rod 64, impact wheel 65, connecting rod 66, triangular linkage block 67, inclined surface 68, disassembly and assembly auxiliary mechanism 7, push cylinder 71, push seat plate 72, bearing ring workpiece 8, groove 81. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figure 4 The figure shows a bearing ring workpiece 8 for an aviation bearing. The characteristic of the bearing ring workpiece 8 is that a plurality of grooves 81 are opened on one end surface. All grooves 81 are evenly distributed around the circumference. Since the grooves 81 have a high roughness requirement, grinding is required. In order to solve the grinding processing problem, Figure 1-Figure 3 As shown, the present invention is specially designed to design a grinding processing device for special-shaped bearing rings, which includes a chuck bracket 1, a chuck 2, a gate-shaped bracket 3 and a power element 5. The chuck 2 is rotatably mounted on the chuck bracket 1. The bearing ring workpiece 8 can be fixedly clamped on the chuck 2, and then the angle change of the bearing ring workpiece 8 is achieved by rotating the chuck 2 (because the number of grooves 81 is large, the grooves 81 can only be processed one by one by rotating the bearing ring workpiece 8). The gate-shaped bracket 3 is mounted across the outside of the chuck bracket 1 and the chuck 2. A grinding tool mechanism 4 is installed on the gate-shaped bracket 3, which is the mounting carrier of the grinding tool mechanism 4. The grinding tool mechanism 4 includes a grinding tool seat 41 that is movably mounted. A rod-shaped grinding tool 42 is rotatably mounted on the grinding tool seat 41. The rod-shaped grinding tool 42 is vertically drooping and can move laterally with the grinding tool seat 41 ( Figure 2The rod-shaped grinding tool 42 can move away from or approach the bearing ring workpiece 8 during the lateral movement. When the rod-shaped grinding tool 42 approaches the bearing ring workpiece 8, the groove 81 can be ground. The power element 5 is connected to the chuck 2 through a transmission connection. The chuck 2 is driven to rotate by the power element 5. Every time the chuck 2 rotates an angle, a groove 81 of the bearing ring workpiece 8 falls on the motion trajectory of the rod-shaped grinding tool 42. Since the grooves 81 are uniformly distributed circumferentially, the angle of each rotation of the chuck 2 needs to be fixed. When grinding the grooves 81, the rod-shaped grinding tool 42 needs to contact the grooves 81. When the bearing ring workpiece 8 rotates to change angles, the rod-shaped grinding tool 42 needs to stay away from the grooves 81 so as not to affect the bearing ring workpiece. 8 rotates. In order to achieve the above-mentioned effect, the present invention is designed and installed with a linkage mechanism 6 in the door-shaped bracket 3. The linkage mechanism 6 is respectively connected to the power element 5 and the grinding tool seat 41 for transmission. The grinding tool seat 41 can be driven to move laterally through the linkage mechanism 6. Before the chuck 2 rotates, the linkage mechanism 6 first drives the rod-shaped grinding tool 42 away from the groove 81. After the chuck 2 has completed the rotation angle, the linkage mechanism 6 can drive the rod-shaped grinding tool 42 to contact the groove 81, and then the groove 81 is polished by the rod-shaped grinding tool 42. The structural design of the present invention is ingenious, and the polishing of all grooves 81 can be completed after one clamping. The application of the present invention can well solve the groove processing problem of special-shaped bearing rings and meet the needs of enterprises for efficient production.

[0028] like Figure 1 and Figure 2 As shown, the mold mechanism 4 also includes an outer frame 43, which is fixedly installed above the chuck 2. The outer frame 43 is hollow inside, and two parallel guide rods 44 are fixedly installed inside the outer frame 43. The two guide rods 44 are installed horizontally at the same height. The mold seat 41 is matched and inserted on the two guide rods 44. The mold seat 41 can move along the length direction of the guide rods 44, which is the lateral movement mentioned above. A first motor 46 is installed on the mold seat 41, and the output shaft of the first motor 46 is connected to the rod-shaped mold 42. The first motor 4 provides rotational power to the rod-shaped mold 42. A spring 45 is installed on the outside of each guide rod 44. One end of the spring 45 is connected to the inner side of the outer frame 43, and the other end is connected to the mold seat 41. Figure 2 As shown, the spring 45 blocks the direction of the leftward movement of the mold seat 41, that is, the elastic force of the spring 45 can drive the mold seat 41 to move toward the power element 5 (toward the right). When the mold seat 41 moves to the left, the spring 45 is compressed, and the rod-shaped mold 42 moves away from the groove 81. When the mold seat 41 moves to the right, the spring 45 is reset, and the rod-shaped mold 42 approaches the groove 81.

[0029] like Figure 1 and Figure 2As shown, the power element 5 includes a second motor 51 and a reducer 52. The second motor 51 is installed at the input end of the reducer 52. The reducer 52 can reduce the output speed. An angle driving gear 61 is installed on the output shaft of the reducer 52. When the second motor 51 is started, the angle driving gear 61 can be rotated. The chuck 2 is fixedly connected to the angle driving shaft 11. The angle driving shaft 11 extends toward the power element 5 and is fixedly connected to the angle transmission gear 12. The chuck 2 can be driven to rotate by the angle driving shaft 11. In order to realize the fixed angle rotation of the chuck 2 and the bearing ring workpiece 8 clamped therein, the present invention The angle drive gear 61 is designed to adopt an incomplete gear. An arc-shaped rack 611 is provided on the angle drive gear 61. During the rotation of the angle drive gear 61, the arc-shaped rack 611 can engage with the angle transmission gear 12. This engagement process can drive the rotation of the angle drive shaft 11, so that the chuck 2 also rotates. The present invention designs the second motor 51 to drive the angle drive gear 61 to rotate one circle each time it is started. Since the length of the arc-shaped rack 611 is fixed and the angle drive gear 61 only rotates one circle, the chuck 2 only rotates a fixed angle each time, and the angle corresponds to the angular relationship between the grooves 81.

[0030] In order to control the orderly movement of the grinding tool holder 41, the present invention cleverly designs a linkage mechanism 6, such as Figure 2As shown, the linkage mechanism 6 includes a telescopic driving disk 62, a sleeve 63 and a vertical rod 64. The telescopic driving disk 62 is fixedly connected to the output shaft of the reducer 52. When the second motor 51 is started, the telescopic driving disk 62 rotates together with the angle driving gear 61, the sleeve 63 is upright and fixed to the door-shaped bracket 3, the vertical rod 64 is upright and matched with the sleeve 63, and the vertical rod 64 can perform vertical lifting movement along the sleeve 63. The sleeve 63 is located just above the telescopic driving disk 62. The bottom of the vertical rod 64 contacts the outer edge of the telescopic driving disk 62. As the height of the outer edge of the driving disk 62 changes, the lifting and lowering movement effect of the vertical rod 64 can be formed. The present invention provides a notch 621 on the outer edge of the telescopic driving disk 62. After the bottom of the vertical rod 64 enters the notch 621, the vertical rod 64 can form a descending effect. When the bottom of the vertical rod 64 does not enter the notch 621, the vertical rod 64 is in a raised state. The top of the vertical rod 64 is rotated and equipped with a bump The wheel 65 is connected to the grinding tool seat 41 with a connecting rod 66, and a triangular linkage block 67 is installed on the connecting rod 66. The triangular linkage block 67 is provided with an inclined surface 68, which is set downward. The inclined surface 68 is set on the movement path of the impact wheel 65. When the vertical rod 64 is raised, the inclined surface 68 of the triangular linkage block 67 can drive the triangular linkage block 67 to move toward the left direction of the chuck 2, which will form the effect of the grinding tool seat 41 moving to the left. The spring 45 is compressed at this time, and the rod-shaped grinding tool 42 is away from the groove 81. At this time, the angle change operation of the bearing ring workpiece 8 can be performed. After the bottom of the vertical rod 64 enters the notch groove 621, the vertical rod 64 naturally falls due to gravity, and the grinding tool seat 41 loses the top power. Under the action of the restoring force of the spring 45, the grinding tool seat 41 will move to the right, and the rod-shaped grinding tool 42 will approach until it contacts the groove 81, which will form the effect of grinding the groove 81. Since the vertical rod 64 must be in an ascending state when the bearing ring workpiece 8 changes its angle, Figure 3 As shown, the present invention sets the notched groove 621 of the telescopic drive disk 62 and the arc-shaped rack 611 of the angle drive gear 61 in the same orientation position. Since the telescopic drive disk 62 and the angle drive gear 61 rotate synchronously, during the meshing process of the arc-shaped rack 611 of the angle drive gear 61 and the angle transmission gear 12, the bottom of the vertical rod 64 just contacts the outer edge of the non-notched groove 621 of the telescopic drive disk 62. In this way, the vertical rod 64 is in a raised state. At this time, the rod-shaped grinder 42 is away from the groove 81 and does not affect the angle changing operation of the bearing ring workpiece 8. The present invention sets the initial position of the notched groove 621 to be vertically upward. In this way, each time the telescopic drive disk 62 rotates one circle, the notched groove 621 is vertically upward, the vertical rod 64 can just restore to the lowered state, and the rod-shaped grinder 42 can just restore to contact the groove 81 for grinding.

[0031] In the present invention, when the rod-shaped grinding tool 42 is pushed away from the groove 81 by the linkage mechanism 6, the distance between the rod-shaped grinding tool 42 and the end surface of the bearing ring workpiece 8 does not need to be too large, as long as it does not affect the rotation of the bearing ring workpiece 8. However, when disassembling and replacing the new bearing ring workpiece 8, the rod-shaped grinding tool 42 needs to be further away from the end surface of the bearing ring workpiece 8 so as to leave enough installation space. Therefore, Figure 1 and Figure 2 As shown, the present invention is further equipped with a disassembly and assembly auxiliary mechanism 7 on the door-shaped bracket 3. The disassembly and assembly auxiliary mechanism 7 includes a push cylinder 71 and a push seat plate 72. The push cylinder 71 is fixedly installed above the mold seat 41. The push cylinder 71 is installed horizontally, and the push seat plate 72 is vertically installed on the upper end surface of the mold seat 41. The push seat plate 72 is arranged on the outward extension path of the piston rod of the push cylinder 71. The disassembly and assembly auxiliary mechanism 7 is only used when disassembling and replacing the bearing ring workpiece 8. When in use, the piston rod of the push cylinder 71 extends outward, and the piston rod pushes the mold seat 41 toward Figure 2 When the bearing ring workpiece 8 moves to the left, the spring 45 will be extremely compressed, and the distance between the rod-shaped mold 42 and the end face of the bearing ring workpiece 8 will be extremely widened. Of course, when disassembling and replacing the new bearing ring workpiece 8, the rod-shaped mold 42 should stop rotating. When the bearing ring workpiece 8 rotates normally, the rod-shaped mold 42 keeps rotating.

[0032] A grinding method for a special-shaped bearing ring is implemented using a grinding device for a special-shaped bearing ring, comprising the following steps:

[0033] (a) The disassembly and assembly assist mechanism 7 is activated, and the push cylinder 71 is used to push the grinding tool holder 41 away from the chuck 2, that is, to the left in the figure, so that a gap is formed between the rod-shaped grinding tool 42 and the chuck 2 to allow the bearing ring workpiece 8 to be installed;

[0034] (b) Adjust the mounting position of the bearing ring workpiece 8 on the chuck 2 so that one of the grooves 81 faces the rod-shaped grinding tool 42. The rod-shaped grinding tool 42 is naturally drooping. The first groove 81 to be machined needs to be vertically upward facing the rod-shaped grinding tool 42. The outer diameter of the rod-shaped grinding tool 42 matches the groove 81 to achieve a comprehensive grinding effect.

[0035] (c) After the bearing ring workpiece 8 is adjusted and installed in place, the rod-shaped grinding tool 42 is started to rotate, and then the disassembly and assembly auxiliary mechanism 7 is closed, and the piston rod of the push cylinder 71 is retracted, so that the rod-shaped grinding tool 42 moves toward the groove 81. The rod-shaped grinding tool 42 contacts the groove 81 and grinds the groove 81. During the grinding process, the impact wheel 65 on the vertical rod 64 does not contact the triangular linkage block 67. The rod-shaped grinding tool 42 relies on the spring force to maintain contact with the groove 81 (the impact wheel 65 on the vertical rod 64 will push the triangular linkage block 67 only when the vertical rod 64 rises);

[0036] (d) After one groove 81 is processed, the power element 5 is started, and the power element 5 drives the telescopic drive disk 62 and the angle drive gear 61 to rotate together. As the vertical rod 64 moves and slides out of the notch groove 621 first, the power element 5 first forms the effect of the rod-shaped mold 42 away from the groove 81, so that the rod-shaped mold 42 does not affect the rotation of the bearing ring workpiece 8. As the telescopic drive disk 62 and the angle drive gear 61 continue to rotate, the power element 5 can drive the bearing ring workpiece 8 to achieve a fixed angle rotation. The telescopic drive disk 62 and the angle drive gear 61 rotate a full circle. After the rotation, there will be another groove 81 facing the rod-shaped mold 42. As the vertical rod 64 moves again and slides into the notch groove 621, the rod-shaped mold 42 can be reset to grind another groove 81;

[0037] (e) After all the grooves 81 are machined one by one through the above steps, the disassembly and assembly auxiliary mechanism 7 is started again to reserve installation space for the bearing ring workpiece 8, and the next bearing ring workpiece 8 is replaced for machining.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A grinding device for a special-shaped bearing ring, used for grinding a groove (81) of a bearing ring workpiece (8), characterized in that: The invention comprises a chuck bracket (1), a chuck (2), a gate bracket (3) and a power element (5), wherein the chuck (2) is rotatably mounted on the chuck bracket (1), the chuck (2) can fix and clamp a bearing ring workpiece (8), the gate bracket (3) is mounted across the outer sides of the chuck bracket (1) and the chuck (2), a grinding tool mechanism (4) is mounted on the gate bracket (3), the grinding tool mechanism (4) comprises a grinding tool seat (41) which is mounted for transverse movement, a rod-shaped grinding tool (42) is rotatably mounted on the grinding tool seat (41), and the rod-shaped grinding tool (42) is mounted vertically downward, the power element (5) is connected to the chuck (2) in a transmission manner, the power element (5) drives the chuck (2) to rotate, and the bearing ring workpiece (8) is characterized in that one end face is opened. A plurality of grooves (81) are provided, and all the grooves (81) are evenly distributed in the circumferential direction. When the chuck (2) rotates an angle, a groove (81) of the bearing ring workpiece (8) falls on the motion trajectory of the rod-shaped grinding tool (42). A linkage mechanism (6) is installed in the door-shaped bracket (3). The linkage mechanism (6) is respectively connected to the power element (5) and the grinding tool seat (41). The grinding tool seat (41) can be driven to move laterally through the linkage mechanism (6). The power element (5) includes a second motor (51) and a reducer (52). The second motor (51) is installed at the input end of the reducer (52). The output shaft of the reducer (52) is installed with an angle driving gear (61). The chuck (2) is fixedly connected with An angle drive shaft (11), the angle drive shaft (11) extends toward the power element (5) and is fixedly connected to an angle transmission gear (12), the angle drive gear (61) is an incomplete gear, and an arc-shaped rack (611) is provided on the angle drive gear (61), and during the rotation of the angle drive gear (61), the arc-shaped rack (611) can mesh with the angle transmission gear (12), the linkage mechanism (6) includes a telescopic drive disc (62), a pipe sleeve (63) and a vertical rod (64), the telescopic drive disc (62) is fixedly connected to the output shaft of the reducer (52), the pipe sleeve (63) is upright and fixed to the door-shaped bracket (3), the vertical rod (64) is upright and matched with the pipe sleeve (63), and the The pipe sleeve (63) is arranged at a position directly above the telescopic drive disk (62), the bottom of the vertical rod (64) contacts the outer edge of the telescopic drive disk (62), the top of the vertical rod (64) is rotatably mounted with a collision wheel (65), the grinding tool seat (41) is connected with a connecting rod (66), the connecting rod (66) is mounted with a triangular linkage block (67), the triangular linkage block (67) is provided with an inclined surface (68), the inclined surface (68) is arranged downward, and the inclined surface (68) is arranged on the movement path of the collision wheel (65), the outer edge of the telescopic drive disk (62) is provided with a notch groove (621), the notch groove (621) of the telescopic drive disk (62) and the arc-shaped rack (611) of the angle drive gear (61) are arranged in the same direction.

2. The grinding device for a special-shaped bearing ring according to claim 1, characterized in that: The grinding tool mechanism (4) further comprises an outer frame (43), the outer frame (43) being fixedly mounted above the chuck (2), two parallel guide rods (44) being fixedly mounted inside the outer frame (43), the grinding tool seat (41) being matched and inserted into the two guide rods (44), the grinding tool seat (41) being mounted with a first motor (46), and the output shaft of the first motor (46) being connected to the rod-shaped grinding tool (42).

3. The grinding device for a special-shaped bearing ring according to claim 1, characterized in that: Each time the second motor (51) is started, it can drive the angle driving gear (61) to rotate one circle.

4. The grinding device for a special-shaped bearing ring according to claim 2, characterized in that: A spring (45) is sleeved on the outer side of the guide rod (44), and the elastic force of the spring (45) can drive the mold seat (41) to move toward the power element (5).

5. The grinding device for a special-shaped bearing ring according to claim 1, characterized in that: The door-shaped bracket (3) is also equipped with a disassembly and assembly auxiliary mechanism (7), and the disassembly and assembly auxiliary mechanism (7) includes a push cylinder (71) and a push seat plate (72), wherein the push cylinder (71) is fixedly installed above the grinding tool seat (41), and the push seat plate (72) is vertically installed on the upper end surface of the grinding tool seat (41), and the push seat plate (72) is arranged on the outward extension path of the piston rod of the push cylinder (71).

6. A method for grinding a special-shaped bearing ring, implemented by using the grinding device for a special-shaped bearing ring according to claim 5, characterized in that: The steps include: (a) starting the disassembly and assembly auxiliary mechanism (7) and pushing the grinding tool holder (41) in a direction away from the chuck (2) by means of the push cylinder (71), so that a gap is formed between the rod-shaped grinding tool (42) and the chuck (2) to allow the bearing ring workpiece (8) to be installed; (b) adjusting the mounting position of the bearing ring workpiece (8) on the chuck (2) so that one of the grooves (81) faces the rod-shaped grinding tool (42); (c) starting the rotation of the rod-shaped grinding tool (42), closing the disassembly auxiliary mechanism (7), retracting the piston rod of the push cylinder (71), and moving the rod-shaped grinding tool (42) toward the groove (81), and grinding the groove (81); (d) After one groove (81) is machined, the power element (5) is started. The power element (5) first forms an effect of the rod-shaped grinding tool (42) being away from the groove (81), so that the rod-shaped grinding tool (42) does not affect the rotation of the bearing ring workpiece (8). Then, the power element (5) drives the bearing ring workpiece (8) to rotate at a fixed angle. After the rotation, another groove (81) will be opposite to the rod-shaped grinding tool (42). After the rod-shaped grinding tool (42) is reset, it can grind the other groove (81); (e) After all the grooves (81) are machined one by one, the disassembly and assembly auxiliary mechanism (7) is started again to leave space for the installation of the bearing ring workpiece (8), and the next bearing ring workpiece (8) is replaced for machining.

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