Combined rotary bearing polishing device

Abstract

The invention discloses a combined rotary bearing polishing device, which belongs to the technical field of bearing processing, and comprises a machine base, a supporting seat is fixedly mounted on the upper surface of the machine base, a supporting column is fixedly mounted on the upper surface of the supporting seat, a supporting plate is fixedly mounted on the upper surface of the supporting column, and a sliding groove is formed in the side wall of the supporting column. A cavity is formed in the supporting seat; the polishing assembly is arranged on the upper surface of the supporting plate; the positioning assembly is arranged outside the upper surface of the supporting seat; according to the bearing polishing device, the positioning assembly and the polishing assembly are arranged, bearings of different sizes are fixed by moving a positioning block, the interiors of the bearings of different sizes can be polished by expanding and shrinking a polishing disc, and the application range of the bearing polishing device is further embodied; and therefore, the convenience of the bearing polishing device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bearing processing, and in particular relates to a combined rotary bearing grinding device. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. In order to ensure the overall accuracy of the bearings during the processing of the bearings, the bearings need to be polished, so a polishing device needs to be used for the polishing operation.

[0003] During the grinding process, the grinding device needs to be adjusted according to the different sizes of the bearings. However, most of the current grinding devices are manually operated during adjustment. On the one hand, the operation is not convenient enough, and on the other hand, the overall working efficiency of the grinding device is reduced. In addition, when grinding the inner surface of the bearing, the adjustment is relatively cumbersome. For this purpose, a combined rotary bearing grinding device is provided. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the current grinding device is relatively complicated to operate when fixing and grinding different bearings, and to propose a combined rotary bearing grinding device.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a combined rotary bearing grinding device, comprising a machine base, a support seat fixedly mounted on the upper surface of the machine base, a support column fixedly mounted on the upper surface of the support seat, a support plate fixedly mounted on the upper surface of the support column, a slide groove provided on the side wall of the support column, and a chamber provided inside the support base; A polishing assembly, the polishing assembly being arranged on the upper surface of the support plate; A positioning assembly, the positioning assembly being arranged outside the upper surface of the support base; A protective component, the protective component being arranged on the outer surface of the support seat; A cleaning assembly, the cleaning assembly being disposed in a cavity of the support seat; Among them, the polishing assembly includes a cylinder, the lower surface of the cylinder is fixedly connected to the upper surface of the support plate, one end of the cylinder extends outside the lower surface of the support plate, a servo motor is fixedly installed at one end of the cylinder, and a fixed disk is fixedly installed at the output end of the servo motor.

[0006] As a further description of the above technical solution: A groove is provided on the inner wall of the fixed plate, a fixed cylinder is fixedly installed on the lower surface of the fixed plate, an electric telescopic rod is fixed on the inner wall of the top surface of the fixed cylinder, a sleeve is fixedly installed on one end of the electric telescopic rod, and the sleeve is sleeved on the outer surface of the movable rod.

[0007] As a further description of the above technical solution: Several fixed plates are fixedly installed on the outer surface of the sleeve, and movable rods are rotatably installed on both side walls of the fixed plates through a rotating shaft. A connecting plate is rotatably installed on one end of the movable rod through a rotating shaft, and a grinding disk is fixedly installed on the side wall of the connecting plate. A limiting block is fixedly installed on the upper surface of the grinding disk, and the outer surface of the limiting block is slidably connected to the inner wall of the groove.

[0008] As a further description of the above technical solution: The positioning assembly includes a rotating disk, the upper surface of which is provided with a travel groove, the upper surface of the support seat is slidably mounted with a positioning block, the upper surface of the positioning block is rotatably mounted with a pulley via a rotating shaft, and the pulley is located inside the travel groove.

[0009] As a further description of the above technical solution: A bidirectional motor is fixedly mounted on the inner wall of the bottom surface of the internal chamber of the support seat, and a rotating rod is fixedly mounted on the output end of the bidirectional motor. One end of the rotating rod extends outside the upper surface of the support seat, and one end of the rotating rod is fixedly connected to the lower surface of the rotating disk.

[0010] As a further description of the above technical solution: The protective assembly includes a protective cover and a positioning plate. A limiting strip is fixedly installed on the inner surface of the protective cover. A limiting groove is provided on the outer surface of the support seat. The outer surface of the limiting strip is slidably connected to the inner wall of the limiting groove. A lifting plate is fixedly installed on the side wall of the protective cover.

[0011] As a further description of the above technical solution: The side wall of the positioning plate is fixedly connected to the side wall of the machine base, a threaded rod is rotatably installed on the upper surface of the positioning plate, a through hole is provided inside the lifting plate, a threaded sleeve is fixedly installed on the inner wall of the through hole, the outer surface of the threaded rod is threadedly connected to the inner wall of the threaded sleeve, and a ball screw is fixedly installed on the upper surface of the threaded rod.

[0012] As a further description of the above technical solution: The outer surface of the ball screw is threadedly mounted with a screw sleeve, the outer surface of the screw sleeve is fixedly mounted with a drive plate, one end of the drive plate passes through the interior of the slide groove, and the inner wall of the drive plate is fixedly connected to the outer surface of the cylinder.

[0013] As a further description of the above technical solution: The cleaning assembly includes a piston box and a cam. The lower surface of the piston box is fixedly connected to the bottom inner wall of the chamber of the support seat. A fixing spring is fixedly installed on the inner side wall of the piston box. A piston plate is fixedly installed on one end of the fixing spring. A push rod is fixedly installed on the side wall of the piston plate. One end of the push rod extends outside the side wall of the piston box.

[0014] As a further description of the above technical solution: The inner wall of the cam is fixedly connected to the outer surface of the rotating rod, one end of the push rod is in contact with the outer surface of the cam, the upper surface of the piston box is connected and a connecting pipe is installed, one end of the connecting pipe extends to the outside of the upper surface of the support seat, one end of the connecting pipe is connected and an air outlet pipe is installed, both ends of the air outlet pipe are fixedly installed with mounting plates, the lower surface of the mounting plate is fixedly connected to the upper surface of the support seat, the outer surface of the air outlet pipe is provided with an air outlet, the outer surface of the piston box is connected and an air inlet pipe is installed, one end of the air inlet pipe extends to the outside of the support seat, and an air path one-way valve is fixedly installed on the inner wall of the air inlet pipe.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, a positioning assembly and a grinding assembly are provided, and the bearing is placed on the upper surface of the rotating disk, and then the bidirectional motor drives the rotating rod to rotate. As the rotating rod rotates, the pulley moves in the stroke groove, thereby causing the positioning block to move toward the center position of the rotating disk, thereby clamping the bearing on the rotating disk. After the bearing is fixed, the cylinder drives the servo motor to descend, and when the grinding disk is located inside the bearing, the electric telescopic rod drives the sleeve to move upward. At this time, under the action of the fixed plate, the movable rod and the connecting plate, the grinding disk will expand around the sleeve under the action of the limit block and the groove. After the outer surface of the grinding disk is in contact with the inner surface of the bearing, the servo motor drives the fixed disk to rotate, thereby driving the grinding disk to rotate. As the grinding disk rotates, the inner surface of the bearing is polished. By moving the positioning block, bearings of different sizes can be fixed. By expanding and contracting the grinding disk, the inside of bearings of different sizes can be polished, further reflecting the applicability of the bearing grinding device and improving the convenience of the bearing grinding device.

[0016] 2. In the present invention, a protective component is provided, and when the cylinder drives the servo motor to descend, it also drives the driving plate to descend synchronously. At this time, the driving plate drives the screw sleeve to descend on the outer surface of the ball screw, thereby causing the ball screw to rotate, and then drives the threaded rod to rotate synchronously on the upper surface of the positioning plate. At this time, under the action of the thread, the threaded sleeve drives the lifting plate to move upward, and then drives the protective cover to move upward in the limiting groove under the limit of the limiting bar, thereby protecting the top of the support seat. During the bearing grinding process, the protective cover is automatically raised and lowered, thereby realizing the automatic protection function of the bearing grinding device, which can block the debris generated by grinding. On the one hand, it is convenient for cleaning the debris in the later stage, reducing the difficulty of cleaning the bearing grinding device. On the other hand, blocking the debris can effectively reduce the danger of debris splashing to the operator, thereby improving the safety of the bearing grinding device.

[0017] 3. In the present invention, a cleaning component is provided. After the grinding of the inner surface of the bearing is completed, the bidirectional motor is reversed, so that the positioning block loses its fixation on the bearing. When the positioning block fixes the bearing, air is sucked into the piston box through the air inlet pipe. When the positioning block loses its fixation on the bearing, the rotating rod drives the cam to rotate. At this time, the cam will squeeze the push rod, so that the push rod drives the piston plate to move in the piston box, squeezing the gas in the piston box. The squeezed gas is transported to the air outlet pipe through the connecting pipe, and then blown to the upper surface of the support seat through the air outlet, so as to clean the grinding debris on the upper surface of the support seat, thereby realizing automatic cleaning of the grinding debris of the bearing. On the one hand, it is convenient for cleaning the bearing grinding device in the later stage. On the other hand, the blown gas can also partially cool the grinding bearing, so as to facilitate the removal of the grinding bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a combined rotary bearing grinding device.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a combined rotary bearing grinding device from another angle.

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a grinding component in a combined rotary bearing grinding device.

[0021] Figure 4 A combined rotary bearing grinding device Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of a positioning component in a combined rotary bearing grinding device.

[0023] Figure 6This is a schematic diagram of the three-dimensional structure of a cleaning component in a combined rotary bearing grinding device.

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of a combined rotary bearing grinding device.

[0025] Legend: 1. Machine base; 2. Support base; 3. Positioning assembly; 31. Rotating plate; 32. Travel groove; 33. Positioning block; 34. Pulley; 35. Bidirectional motor; 36. Rotating rod; 4. Support column; 5. Support plate; 6. Grinding assembly; 61. Cylinder; 62. Servo motor; 63. Fixed plate; 64. Fixed cylinder; 65. Electric telescopic rod; 66. Sleeve; 67. Fixed plate; 68. Movable rod; 69. Connecting plate ;610, grinding disc;7, protective assembly;71, protective cover;72, limit strip;73, limit groove;74, lifting plate;75, threaded rod;76, positioning plate;77, ball screw;78, screw sleeve;79, drive plate;8, cleaning assembly;81, piston box;82, connecting pipe;83, exhaust pipe;84, mounting plate;85, cam;86, push rod;87, fixing spring;88, piston plate. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figure 1-Figure 7The present invention provides a technical solution: a combined rotary bearing grinding device, comprising a machine base 1, a support base 2 is fixedly mounted on the upper surface of the machine base 1, a support column 4 is fixedly mounted on the upper surface of the support base 2, a support plate 5 is fixedly mounted on the upper surface of the support column 4, a slide groove is provided on the side wall of the support column 4, and a chamber is provided inside the support base 2; a grinding component 6, the grinding component 6 is provided on the upper surface of the support plate 5; a positioning component 3, the positioning component 3 is provided outside the upper surface of the support base 2; a protective component 7, the protective component 7 is provided on the support The outer surface of the seat 2; a cleaning assembly 8, the cleaning assembly 8 is arranged in the chamber of the support seat 2; wherein the polishing assembly 6 includes a cylinder 61, the lower surface of the cylinder 61 is fixedly connected to the upper surface of the support plate 5, one end of the cylinder 61 extends to the outside of the lower surface of the support plate 5, one end of the cylinder 61 is fixedly mounted with a servo motor 62, the output end of the servo motor 62 is fixedly mounted with a fixed disk 63, the inner wall of the fixed disk 63 is provided with a groove, the lower surface of the fixed disk 63 is fixedly mounted with a fixed cylinder 64, the top inner wall of the fixed cylinder 64 is fixed There is an electric telescopic rod 65, one end of which is fixedly mounted with a sleeve 66, which is sleeved on the outer surface of a movable rod 68, and a plurality of fixed plates 67 are fixedly mounted on the outer surface of the sleeve 66. The two side walls of the fixed plate 67 are both rotatably mounted with movable rods 68 through a rotating shaft, and one end of the movable rod 68 is rotatably mounted with a connecting plate 69 through a rotating shaft, and a grinding disc 610 is fixedly mounted on the side wall of the connecting plate 69. A limit block is fixedly mounted on the upper surface of the grinding disc 610, and the outer surface of the limit block is slidably connected to the inner wall of the groove. The component 3 includes a rotating disk 31, the upper surface of which is provided with a travel groove 32, and a positioning block 33 is slidably installed on the upper surface of the support seat 2. A pulley 34 is rotatably installed on the upper surface of the positioning block 33 through a rotating shaft, and the pulley 34 is located inside the travel groove 32. A bidirectional motor 35 is fixedly installed on the inner wall of the bottom surface of the internal cavity of the support seat 2, and a rotating rod 36 is fixedly installed on the output end of the bidirectional motor 35. One end of the rotating rod 36 extends to the outside of the upper surface of the support seat 2, and one end of the rotating rod 36 is fixedly connected to the lower surface of the rotating disk 31.

[0031] The specific embodiment is as follows: the bearing is placed on the upper surface of the rotating disk 31, and then the bidirectional motor 35 drives the rotating rod 36 to rotate. As the rotating rod 36 rotates, the pulley 34 moves in the stroke groove 32, thereby causing the positioning block 33 to move toward the center position of the rotating disk 31, thereby clamping the bearing on the rotating disk 31. After the bearing is fixed, the cylinder 61 drives the servo motor 62 to descend. When the grinding disk 610 is located inside the bearing, the electric telescopic rod 65 drives the sleeve 66 to move up. At this time, under the action of the fixed plate 67, the movable rod 68 and the connecting plate 69, the grinding disk 610 will expand around the sleeve 66 under the action of the limit block and the groove. After the outer surface of the grinding disk 610 is in contact with the inner surface of the bearing, the servo motor 62 drives the fixed disk 63 to rotate, thereby driving the grinding disk 610 to rotate. As the grinding disk 610 rotates, the inner surface of the bearing is polished.

[0032] The protective assembly 7 includes a protective cover 71 and a positioning plate 76. The inner surface of the protective cover 71 is fixedly installed with a limit strip 72. The outer surface of the support seat 2 is provided with a limit groove 73. The outer surface of the limit strip 72 is slidably connected to the inner wall of the limit groove 73. The side wall of the protective cover 71 is fixedly installed with a lifting plate 74. The side wall of the positioning plate 76 is fixedly connected to the side wall of the machine base 1. The upper surface of the positioning plate 76 is rotatably installed with a threaded rod 75. The interior of the lifting plate 74 is provided with a through hole, and a threaded sleeve is fixedly installed on the inner wall of the through hole. The outer surface of the threaded rod 75 is threadedly connected to the inner wall of the threaded sleeve. The upper surface of the threaded rod 75 is fixedly installed with a ball screw 77. The outer surface of the ball screw 77 is threadedly installed with a screw sleeve 78. The outer surface of the screw sleeve 78 is fixedly installed with a drive plate 79. One end of the drive plate 79 passes through the interior of the slide groove, and the inner wall of the drive plate 79 is fixedly connected to the outer surface of the cylinder 61.

[0033] Its specific embodiment is: when the cylinder 61 drives the servo motor 62 to descend, it will also drive the drive plate 79 to descend synchronously. At this time, the drive plate 79 will drive the screw sleeve 78 to descend on the outer surface of the ball screw 77, thereby causing the ball screw 77 to rotate, and then drive the threaded rod 75 to rotate synchronously on the upper surface of the positioning plate 76. At this time, under the action of the thread, the threaded sleeve drives the lifting plate 74 to move upward, and then drives the protective cover 71 to move up in the limit groove 73 under the limit of the limit bar 72, thereby protecting the top of the support seat 2.

[0034] The cleaning assembly 8 includes a piston box 81 and a cam 85. The lower surface of the piston box 81 is fixedly connected to the inner wall of the bottom surface of the chamber of the support seat 2. A fixed spring 87 is fixedly installed on the inner wall of the piston box 81. One end of the fixed spring 87 is fixedly installed with a piston plate 88. A push rod 86 is fixedly installed on the side wall of the piston plate 88. One end of the push rod 86 extends to the outside of the side wall of the piston box 81. The inner wall of the cam 85 is fixedly connected to the outer surface of the rotating rod 36. One end of the push rod 86 is in contact with the outer surface of the cam 85. The upper surface of the piston box 81 is connected to a connecting pipe 82, one end of the connecting pipe 82 extends to the outside of the upper surface of the support seat 2, and one end of the connecting pipe 82 is connected to an air outlet pipe 83, both ends of the air outlet pipe 83 are fixedly installed with mounting plates 84, the lower surface of the mounting plate 84 is fixedly connected to the upper surface of the support seat 2, and the outer surface of the air outlet pipe 83 is provided with an air outlet, and the outer surface of the piston box 81 is connected to an air inlet pipe, one end of the air inlet pipe extends to the outside of the support seat 2, and an air path one-way valve is fixedly installed on the inner wall of the air inlet pipe.

[0035] The specific embodiment is as follows: after the inner surface of the bearing is polished, the bidirectional motor 35 is reversed, so that the positioning block 33 loses its fixation on the bearing. When the positioning block 33 fixes the bearing, air is sucked into the piston box 81 through the air inlet pipe. When the positioning block 33 loses its fixation on the bearing, the rotating rod 36 drives the cam 85 to rotate. At this time, the cam 85 will squeeze the push rod 86, so that the push rod 86 drives the piston plate 88 to move in the piston box 81, squeezing the gas in the piston box 81. The squeezed gas is transported to the outlet pipe 83 through the connecting pipe 82, and then blown to the upper surface of the support seat 2 through the air outlet to clean the debris polished on the upper surface of the support seat 2.

[0036] Working principle: Place the bearing on the upper surface of the rotating disk 31, and then the bidirectional motor 35 drives the rotating rod 36 to rotate. As the rotating rod 36 rotates, the pulley 34 moves in the stroke groove 32, so that the positioning block 33 moves to the center position of the rotating disk 31, thereby clamping the bearing on the rotating disk 31. After the bearing is fixed, the cylinder 61 drives the servo motor 62 to descend. When the grinding disk 610 is located inside the bearing, the electric telescopic rod 65 drives the sleeve 66 to move up. At this time, the fixed plate 67, under the action of the movable rod 68 and the connecting plate 69, the grinding disc 610 will expand to the periphery of the sleeve 66 under the action of the limit block and the groove. After the outer surface of the grinding disc 610 is in contact with the inner surface of the bearing, the servo motor 62 drives the fixed plate 63 to rotate, thereby driving the grinding disc 610 to rotate. As the grinding disc 610 rotates, the inner surface of the bearing is polished. When the cylinder 61 drives the servo motor 62 to descend, it also drives the drive plate 79 to descend synchronously. At this time, the drive plate 79 drives the wire The lever sleeve 78 descends on the outer surface of the ball screw 77, thereby causing the ball screw 77 to rotate, thereby driving the threaded rod 75 to rotate synchronously on the upper surface of the positioning plate 76. At this time, under the action of the thread, the threaded sleeve drives the lifting plate 74 to move upward, thereby driving the protective cover 71 to move upward in the limiting groove 73 under the limitation of the limiting bar 72, thereby protecting the upper part of the support seat 2. After the inner surface of the bearing is polished, the bidirectional motor 35 is reversed, causing the positioning block 33 to lose its fixation on the bearing, and the positioning block 33 When the bearing is fixed, air is sucked into the piston box 81 through the air inlet pipe. When the positioning block 33 loses its fixation on the bearing, the rotating rod 36 drives the cam 85 to rotate. At this time, the cam 85 will squeeze the push rod 86, so that the push rod 86 drives the piston plate 88 to move in the piston box 81, squeezing the gas in the piston box 81. The squeezed gas is transported to the outlet pipe 83 through the connecting pipe 82, and then blown to the upper surface of the support seat 2 through the air outlet to clean the grinding debris on the upper surface of the support seat 2.

[0037] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A combined rotary bearing grinding device, characterized in that: include: A machine base (1), wherein a support base (2) is fixedly mounted on the upper surface of the machine base (1), a support column (4) is fixedly mounted on the upper surface of the support base (2), a support plate (5) is fixedly mounted on the upper surface of the support column (4), a slide groove is provided on the side wall of the support column (4), and a chamber is provided inside the support base (2); A grinding assembly (6), wherein the grinding assembly (6) is arranged on the upper surface of the support plate (5); A positioning component (3), the positioning component (3) being arranged outside the upper surface of the support seat (2); A protective component (7), the protective component (7) being arranged on the outer surface of the support seat (2); A cleaning assembly (8), the cleaning assembly (8) being arranged in a cavity of the support seat (2); The polishing assembly (6) comprises a cylinder (61), the lower surface of the cylinder (61) is fixedly connected to the upper surface of the support plate (5), one end of the cylinder (61) extends outside the lower surface of the support plate (5), a servo motor (62) is fixedly mounted on one end of the cylinder (61), and a fixed disk (63) is fixedly mounted on the output end of the servo motor (62).

2. A combined rotary bearing grinding device according to claim 1, characterized in that: A groove is provided on the inner wall of the fixed plate (63), a fixed cylinder (64) is fixedly mounted on the lower surface of the fixed plate (63), an electric telescopic rod (65) is fixed on the inner wall of the top surface of the fixed cylinder (64), a sleeve (66) is fixedly mounted on one end of the electric telescopic rod (65), and the sleeve (66) is sleeved on the outer surface of the movable rod (68).

3. A combined rotary bearing grinding device according to claim 2, characterized in that: A plurality of fixed plates (67) are fixedly mounted on the outer surface of the sleeve (66), and movable rods (68) are rotatably mounted on both side walls of the fixed plate (67) via a rotating shaft. A connecting plate (69) is rotatably mounted on one end of the movable rod (68) via a rotating shaft, and a grinding disc (610) is fixedly mounted on the side wall of the connecting plate (69). A limiting block is fixedly mounted on the upper surface of the grinding disc (610), and the outer surface of the limiting block is slidably connected to the inner wall of the groove.

4. A combined rotary bearing grinding device according to claim 3, characterized in that: The positioning assembly (3) comprises a rotating disk (31), the upper surface of the rotating disk (31) is provided with a travel groove (32), the upper surface of the support seat (2) is slidably mounted with a positioning block (33), the upper surface of the positioning block (33) is rotatably mounted with a pulley (34) via a rotating shaft, and the pulley (34) is located inside the travel groove (32).

5. The combined rotary bearing grinding device according to claim 4, characterized in that: A bidirectional motor (35) is fixedly mounted on the inner wall of the bottom surface of the internal chamber of the support seat (2), and a rotating rod (36) is fixedly mounted on the output end of the bidirectional motor (35). One end of the rotating rod (36) extends to the outside of the upper surface of the support seat (2), and one end of the rotating rod (36) is fixedly connected to the lower surface of the rotating disk (31).

6. The combined rotary bearing grinding device according to claim 5, characterized in that: The protective assembly (7) includes a protective cover (71) and a positioning plate (76); a limiting strip (72) is fixedly mounted on the inner surface of the protective cover (71); a limiting groove (73) is provided on the outer surface of the support seat (2); the outer surface of the limiting strip (72) is slidably connected to the inner wall of the limiting groove (73); and a lifting plate (74) is fixedly mounted on the side wall of the protective cover (71).

7. The combined rotary bearing grinding device according to claim 6, characterized in that: The side wall of the positioning plate (76) is fixedly connected to the side wall of the machine base (1), and a threaded rod (75) is rotatably mounted on the upper surface of the positioning plate (76). A through hole is provided inside the lifting plate (74), and a threaded sleeve is fixedly mounted on the inner wall of the through hole. The outer surface of the threaded rod (75) is threadedly connected to the inner wall of the threaded sleeve, and a ball screw (77) is fixedly mounted on the upper surface of the threaded rod (75).

8. The combined rotary bearing grinding device according to claim 7, characterized in that: The outer surface of the ball screw (77) is threadedly mounted with a screw sleeve (78), and the outer surface of the screw sleeve (78) is fixedly mounted with a drive plate (79), one end of the drive plate (79) passes through the interior of the slide groove, and the inner wall of the drive plate (79) is fixedly connected to the outer surface of the cylinder (61).

9. The combined rotary bearing grinding device according to claim 8, characterized in that: The cleaning assembly (8) includes a piston box (81) and a cam (85), the lower surface of the piston box (81) is fixedly connected to the inner wall of the bottom surface of the chamber of the support seat (2), a fixed spring (87) is fixedly installed on the inner wall of the piston box (81), one end of the fixed spring (87) is fixedly installed with a piston plate (88), and a push rod (86) is fixedly installed on the side wall of the piston plate (88), and one end of the push rod (86) extends outside the side wall of the piston box (81).

10. The combined rotary bearing grinding device according to claim 9, characterized in that: The inner wall of the cam (85) is fixedly connected to the outer surface of the rotating rod (36), one end of the push rod (86) is in contact with the outer surface of the cam (85), the upper surface of the piston box (81) is connected to a connecting pipe (82), one end of the connecting pipe (82) extends to the outside of the upper surface of the support seat (2), one end of the connecting pipe (82) is connected to an outlet pipe (83), both ends of the outlet pipe (83) are fixedly installed with a mounting plate (84), the lower surface of the mounting plate (84) is fixedly connected to the upper surface of the support seat (2), the outer surface of the outlet pipe (83) is provided with an outlet port, the outer surface of the piston box (81) is connected to an intake pipe, one end of the intake pipe extends to the outside of the support seat (2), and an air path one-way valve is fixedly installed on the inner wall of the intake pipe.

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