An automobile bearing manufacturing device and its usage method

Abstract

The present invention belongs to the technical field of bearing manufacturing, and particularly discloses an automobile bearing manufacturing device and a using method thereof. The using method of the automobile bearing manufacturing device includes a bottom plate, and horizontal frames arranged in parallel are installed on both the front and rear sides of the top surface of the bottom plate. A clamping structure for correspondingly clamping the outer ring of the bearing is movably clamped at the center of the two horizontal frames. In the present invention, by synchronously rotating two nuts, the spiral effect of the nuts and the horizontal frames can drive the moving frame to move on the surface of the horizontal frame. During the movement of the moving frame, the convex strips are used to move smoothly on the surface of the horizontal frame, and the moving frame drives the frame plate to slide on the surface of the inclined rod. Since the inclined rod is horizontally inclined inside the horizontal groove of the horizontal frame, when the two frame plates slide on the inclined surface of the inclined rod, the two frame plates gradually approach or move away from each other during the back-and-forth sliding process. The two frame plates that approach or move away from each other use the clamping pieces to correspondingly clamp the outer rings of bearings with different outer diameters, improving the adaptability of the entire manufacturing device to different bearing outer rings.

Description

Technical Field

[0001] The present invention belongs to the technical field of bearing manufacturing, and particularly relates to an automobile bearing manufacturing device and a using method thereof. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment, mainly used to support a mechanical rotating body, reduce the friction coefficient during its movement, thereby reducing the wear of the mechanical body, and at the same time ensuring high rotational accuracy of the mechanical body. During the process of automobile production, bearings are often required to fix mechanical rotating bodies such as crankshafts and camshafts.

[0003] The existing bearing end face grinding device has a relatively simple structure and is insufficient in adaptability when grinding the end faces of bearings with different volumes and specifications, and it is easy to produce grinding errors.

[0004] Therefore, it is very necessary to invent an automobile bearing manufacturing device and a using method thereof to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present invention provides an automobile bearing manufacturing device and a using method thereof to solve the problems raised in the above background art:

[0006] To achieve the above object, the present invention provides the following technical solution: An automobile bearing manufacturing device includes a bottom plate. On the front and rear sides of the top surface of the bottom plate, horizontally arranged cross frames are installed in parallel. A clamping structure for correspondingly clamping the outer ring of the bearing is movably clamped at the centers of the two cross frames. Inside the outer ring of the bearing, a grinding structure for grinding the inner side wall of the outer ring of the bearing is correspondingly sleeved. At the top and bottom of the grinding structure, a top frame and a bottom frame are respectively arranged. Column rods penetrate through the centers of the top frame and the bottom frame. The bottom end of the column rod is correspondingly connected to the output shaft of the motor, and a circular plate is connected to the surface of the bottom end of the column rod. The column rod is rotationally matched with the through groove at the center of the top surface of the bottom plate by means of the circular plate. The rotation of the column rod drives the top frame and the bottom frame to rotate. The top frame drives the grinding structure to rotate synchronously. The top frame, the grinding structure, and the bottom frame cooperate to grind the outer ring of the bearing.

[0007] Further, a horizontal groove is provided on the surface of the cross frame. The clamping structure includes a moving frame. The moving frame is slidably matched with the cross frame by means of the horizontal groove. Nuts that are helically matched with the cross frame are arranged on both sides of the moving frame. Protrusions that are slidably matched with the circumferential outer surface of the cross frame are arranged on the top and bottom surfaces of the moving frame.

[0008] Further, a frame plate is correspondingly inserted at the inner end of the moving frame. The inner ends of two opposite frame plates are used to correspondingly clamp the outer ring of the bearing by means of clamping pieces. The outer ends of the frame plates are located inside the moving frame. A horizontally arranged inclined rod is fixed inside the horizontal groove, and the inclined rod correspondingly penetrates through the inner end of the frame plate.

[0009] Further, the grinding structure includes a rotating ring, which is correspondingly located inside the outer ring of the bearing. A plurality of mounting grooves are equidistantly arranged in a ring shape on the circumferential side surface of the rotating ring. Cross bars are fixedly connected to both the top and bottom inside the mounting grooves, and the length of the mounting groove is greater than the height of the outer ring of the bearing.

[0010] Further, a first convex block and a second convex block are respectively arranged at the centers inside the top frame and the bottom frame. The top frame is correspondingly buckled on the top of the rotating ring by means of the first convex block, and the bottom frame is in screw fit with the bottom of the rotating ring by means of the second convex block. Grinding rings are arranged on the inner side walls of both the top frame and the bottom frame. The two grinding rings are respectively in corresponding contact with the top side and the bottom side of the outer ring of the bearing, and the column rod correspondingly penetrates through the centers of the first convex block and the second convex block.

[0011] Further, a plurality of clamping bars are equidistantly arranged side by side on the circumferential outer side surface of the first convex block, and inner grooves corresponding to the plurality of clamping bars are arranged on the top of the inner side wall of the rotating ring. By means of the cooperation between the clamping bars and the inner grooves, the column rod drives the rotating ring to rotate synchronously by means of the first convex block. The bottom of the second convex block is fixedly connected to the bottom frame by means of a plurality of connecting plates, and a leakage groove is arranged between adjacent two connecting plates.

[0012] Further, rotating plates are arranged on both the top and bottom inside the mounting grooves. The outer ends of the rotating plates are rotatably sleeved on the surfaces of the cross bars, the inner ends of the rotating plates are hinged to the inner ends of the inner cross plates, the outer ends of the inner cross plates are correspondingly buckled in the inner grooves of the grinding plates, vertical rods penetrating through the outer ends of the inner cross plates are arranged in the inner grooves of the grinding plates, a limiting rod is correspondingly arranged through the centers of the two inner cross plates, and a spring is sleeved on the surface of the limiting rod. The two inner cross plates are connected by means of the spring.

[0013] The present invention also provides a using method of an automobile bearing manufacturing device. The using method is applied to the above-mentioned automobile bearing manufacturing device and includes the following steps:

[0014] S1. Rotate two nuts. By means of the screw effect between the nuts and the cross frame, the moving frame is pushed to move. When the moving frame drives the frame plate to move synchronously, the relative distance between the two clamping pieces is adjusted by the sliding fit between the inclined rod and the frame plate. The outer ring of the bearing is correspondingly placed between the two moving frames, and the outer ring of the bearing is limited and clamped by the two clamping pieces.

[0015] S2. Before placing the outer ring of the bearing, correspondingly sleeve the bottom frame on the surface of the column rod, correspondingly sleeve the rotating ring on the surface of the column rod, and the rotating ring is located on the top of the bottom frame. The outer ring of the bearing drives the bottom frame to move synchronously by means of the rotating ring until the outer ring of the bearing is limited between the two clamping pieces.

[0016] S3. Align the second convex block of the bottom frame with the bottom end of the rotating ring, rotate the rotating ring, and the bottom end of the rotating ring is spirally sleeved on the surface of the second convex block. The top end of the second convex block pushes the outer side of the grinding plate of the grinding structure to fit against the inner side wall of the outer ring of the bearing, and the grinding ring of the bottom frame fits against the bottom side of the outer ring of the bearing. After the top frame is buckled with the inner groove of the rotating ring by using the clamping strip of the first convex block, start the motor. The motor drives the top frame and the bottom frame to rotate synchronously through the column rod, and the top frame drives the rotating ring to rotate synchronously by using the first convex block.

[0017] S4. During the rotation of the rotating ring, the inner side wall of the outer ring of the bearing is polished by using the grinding plate. When the top frame and the bottom frame respectively polish the top side and the bottom side of the outer ring of the bearing by using the grinding rings, the inner side walls of the top frame and the bottom frame respectively polish the top and the bottom of the circumferential outer side of the outer ring of the bearing.

[0018] S5. After the grinding is completed, remove the top frame, then rotate the rotating ring in the reverse direction to separate the rotating ring from the second convex block. Rotate the nut, and during the movement of the moving frame, the two frame plates are separated, which is convenient for removing the polished outer ring of the bearing, thus completing the polishing process of the outer ring of the bearing during the manufacturing process.

[0019] The technical effects and advantages of the present invention:

[0020] 1. In the present invention, by synchronously rotating the two nuts, the spiral effect between the nuts and the cross frame can drive the moving frame to move on the surface of the cross frame. During the movement of the moving frame, the convex strip moves smoothly on the surface of the cross frame, and the moving frame drives the frame plates to slide on the surface of the inclined rod. Since the inclined rod is horizontally inclined inside the cross groove of the cross frame, when the two frame plates slide on the inclined surface of the inclined rod, the two frame plates gradually approach or move away from each other during the back-and-forth sliding process. The two frame plates that approach or move away from each other respectively clamp the outer rings of bearings with different outer diameters by using the clamping pieces, improving the adaptability of the entire manufacturing equipment to different outer rings of bearings.

[0021] 2. In the present invention, the rotating top frame and bottom frame use the rotating grinding rings to perform rotational grinding and polishing on the top side and the bottom side of the outer ring of the bearing, and the inner side walls of the top frame and the bottom frame respectively perform rotational grinding on the top and the bottom of the circumferential outer side of the outer ring of the bearing during the rotation process. The rotating rotating ring uses the grinding structure to grind the inner side wall of the outer ring of the bearing. The top frame, the bottom frame, and the grinding structure installed on the rotating ring perform comprehensive internal and external grinding on the outer ring of the bearing, improving the grinding and polishing efficiency of the outer ring of the bearing during the production process.

[0022] 3. During the process of the top of the second convex block moving upward inside the swivel ring, the swivel plate is squeezed. The rotating swivel plate causes the inner horizontal plate to gradually move out of the installation groove. The swivel plate at the bottom drives the swivel plate at the top to rotate by means of the inner horizontal plate. During the process of the inner horizontal plate moving out of the installation groove, the outer side of the grinding plate gradually fits against the inner side wall of the bearing outer ring, and the first convex block is correspondingly limited at the top of the swivel ring. The first convex block is used to limit the swivel plate at the top, so that the outer side of the grinding plate can be in close contact with the inner side wall of the bearing outer ring, improving the grinding and polishing effect of the outer side of the grinding plate on the inner side wall of the bearing outer ring during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an overall three-dimensional structural schematic diagram of the automotive bearing manufacturing equipment according to an embodiment of the present invention;

[0024] Figure 2 is an overall schematic diagram of the clamping structure sleeved on the surface of the cross frame according to an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of the top frame and the bottom frame correspondingly limiting the swivel ring according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of the internal component structure of the top frame according to an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the internal component structure of the bottom frame according to an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the grinding structure inside the swivel ring according to an embodiment of the present invention;

[0029] In the figure: 1, bottom plate; 2, cross frame; 3, bearing outer ring; 4, top frame; 5, bottom frame; 6, column rod; 7, round plate; 8, moving frame; 9, nut; 10, rib; 11, frame plate; 12, clip; 13, inclined rod; 14, swivel ring; 15, cross bar; 16, first convex block; 17, second convex block; 18, grinding ring; 19, clamping bar; 20, inner groove; 21, connecting plate; 22, swivel plate; 23, inner horizontal plate; 24, grinding plate; 25, vertical rod; 26, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] The present invention provides an automotive bearing manufacturing equipment, as Figures 1 to 3As shown in the figure, it includes a bottom plate 1. On both the front and rear sides of the top surface of the bottom plate 1, horizontally arranged cross frames 2 are installed. A clamping structure for correspondingly clamping the outer ring 3 of the bearing is movably clamped at the centers of the two cross frames 2. Inside the outer ring 3 of the bearing, a grinding structure for correspondingly sleeving and grinding the inner side wall of the outer ring 3 of the bearing is arranged. At the top and bottom of the grinding structure, a top frame 4 and a bottom frame 5 are correspondingly arranged. A column rod 6 penetrates through the centers of the top frame 4 and the bottom frame 5. The bottom end of the column rod 6 is correspondingly connected to the output shaft of the motor, and a circular plate 7 is connected to the surface of the bottom end of the column rod 6. The column rod 6 is rotationally matched with the through groove at the center of the top surface of the bottom plate 1 by means of the circular plate 7. When the column rod 6 rotates, it drives the top frame 4 and the bottom frame 5 to rotate. The top frame 4 drives the grinding structure to rotate synchronously. The top frame 4, the grinding structure, and the bottom frame 5 cooperate to grind the outer ring 3 of the bearing. First, after the bottom frame 5 and the outer ring 3 of the bearing are correspondingly sleeved on the surface of the column rod 6, the outer ring 3 of the bearing to be ground is correspondingly clamped by the clamping structure. After the grinding structure is correspondingly limited by the top frame 4 and the bottom frame 5, the motor is started. When the motor drives the column rod 6 to rotate, the column rod 6 drives the circular plate 7 to rotate inside the through groove of the bottom plate 1. By means of the rotational cooperation between the circular plate 7 and the through groove, the vertical effect of the column rod 6 on the top of the bottom plate 1 is ensured.

[0032] When the column rod 6 rotates, the column rod 6 drives the grinding structure to rotate synchronously by means of the top frame 4 and the bottom frame 5. The circumferential outer side surface of the outer ring 3 of the bearing, as well as the top and bottom sides of the outer ring 3 of the bearing, are polished and ground by the rotating grinding structure on the circumferential inner side wall of the outer ring 3 of the bearing, ensuring the comprehensiveness of the polishing and grinding of the outer ring 3 of the bearing during the manufacturing process.

[0033] In Figure 1 and Figure 2 In the figure, a horizontal groove is arranged on the surface of the cross frame 2. The clamping structure includes a moving frame 8. The moving frame 8 is slidably matched with the cross frame 2 by means of the horizontal groove. On both sides of the moving frame 8, nuts 9 that are helically matched with the cross frame 2 are arranged. On the top and bottom surfaces of the moving frame 8, convex strips 10 that are slidably matched with the circumferential outer side surface of the cross frame 2 are arranged. When the moving frame 8 moves on the surface of the cross frame 2, the two nuts 9 are rotated synchronously. The helical effect between the nuts 9 and the cross frame 2 can drive the moving frame 8 to move on the surface of the cross frame 2. During the moving process of the moving frame 8, the convex strips 10 slide on the circumferential outer side surface of the cross frame 2. The multiple convex strips 10 ensure the smoothness of the moving frame 8 moving on the surface of the cross frame 2, avoiding the situation of severe shaking of the moving frame 8 during the moving process.

[0034] In Figure 1 and Figure 2Inside, a shelf plate 11 is correspondingly inserted at the inner end of the moving frame 8. The inner ends of two opposite shelf plates 11 respectively clamp the outer ring 3 of the bearing by using clamping pieces 12. The outer ends of the shelf plates 11 are inside the moving frame 8. A horizontally arranged inclined rod 13 is fixed inside the transverse groove, and the inclined rod 13 correspondingly penetrates through the inner end of the shelf plate 11. When the moving frame 8 moves smoothly on the surface of the transverse frame 2 by using the convex strip 10, the moving frame 8 drives the shelf plate 11 to slide on the surface of the inclined rod 13. Since the inclined rod 13 is horizontally inclined inside the transverse groove of the transverse frame 2, when the two shelf plates 11 slide on the surface of the inclined rod 13, the two shelf plates 11 gradually approach or move away from each other during the back-and-forth sliding process. The two shelf plates 11 that approach or move away from each other respectively clamp the outer rings 3 of bearings with different outer diameters by using the clamping pieces 12, improving the adaptability of the entire manufacturing equipment to different outer rings 3 of bearings.

[0035] In Figure 3 and Figure 6 Inside, the grinding structure includes a rotating ring 14. The rotating ring 14 is correspondingly inside the outer ring 3 of the bearing. A plurality of mounting grooves are annularly and equidistantly arranged on the circumferential side surface of the rotating ring 14. Cross bars 15 are fixedly connected to the top and bottom of the inner side of the mounting grooves respectively. The length of the mounting grooves is greater than the height of the outer ring 3 of the bearing. When the rotating ring 14 rotates, the rotating ring 14 drives the grinding structure to rotate inside the outer ring 3 of the bearing by using the cross bars 15 inside the plurality of mounting grooves. The rotating grinding structure can perform a comprehensive polishing and grinding treatment on the inner side wall of the outer ring 3 of the bearing.

[0036] In Figures 3 to 5 Inside, a first convex block 16 and a second convex block 17 are respectively arranged at the central positions inside the top frame 4 and the bottom frame 5. The top frame 4 is correspondingly buckled on the top of the rotating ring 14 by using the first convex block 16. The bottom frame 5 is in screw fit with the bottom of the rotating ring 14 by using the second convex block 17. Grinding rings 18 are arranged on the inner side walls of the top frame 4 and the bottom frame 5 respectively. The two grinding rings 18 are respectively in corresponding contact with the top side and the bottom side of the outer ring 3 of the bearing, and the column rod 6 correspondingly penetrates through the centers of the first convex block 16 and the second convex block 17. After the top frame 4 and the bottom frame 5 are respectively buckled on the top and the bottom of the outer ring 3 of the bearing, until the top frame 4 and the bottom frame 5 are respectively in corresponding contact with the top side and the bottom side of the outer ring 3 of the bearing by using the grinding rings 18, the rotating top frame 4 and bottom frame 5 use the rotating grinding rings 18 to perform a rotating grinding and polishing treatment on the top side and the bottom side of the outer ring 3 of the bearing, and the inner side walls of the top frame 4 and the bottom frame 5 respectively perform a rotating grinding treatment on the top and the bottom of the circumferential outer side surface of the outer ring 3 of the bearing during the rotation process, ensuring the comprehensiveness of the grinding of the outer ring 3 of the bearing.

[0037] In Figures 3 to 5Among them, a plurality of clamping bars 19 are arranged in equidistant parallel on the outer circumferential side surface of the first convex block 16, and inner grooves 20 corresponding to the plurality of clamping bars 19 one by one are arranged at the top of the inner side wall of the rotating ring 14. By using the cooperation of the clamping bars 19 and the inner grooves 20, the column rod 6 drives the rotating ring 14 to rotate synchronously by means of the first convex block 16. The bottom of the second convex block 17 is fixedly connected to the bottom frame 5 by a plurality of connecting plates 21, and a leakage groove is arranged between two adjacent connecting plates 21. The first convex block 16 and the second convex block 17 rotate synchronously under the drive of the column rod 6, and the first convex block 16 drives the rotating ring 14 to rotate synchronously with the first convex block 16 by using the cooperation of the clamping bars 19 and the inner grooves 20. The rotating rotating ring 14 polishes the inner side wall of the bearing outer ring 3 by means of the polishing structure. The top frame 4, the bottom frame 5 and the polishing structure installed on the rotating ring 14 polish the bearing outer ring 3 comprehensively inside and outside, improving the polishing efficiency of the bearing outer ring 3 during the production process.

[0038] When the inner side wall of the bearing outer ring 3 is polished by rotation, the powder on the surface of the bearing outer ring 3 falls inside the bottom frame 5 through the inside of the rotating ring 14. The bottom frame 5 facilitates the discharge of the metal powder inside the bottom frame 5 by means of the rotating plurality of leakage grooves, avoiding the influence on the polishing effect of the bottom frame 5 on the bearing outer ring 3 caused by the accumulation of metal powder.

[0039] In Figures 4 to 6 Among them, rotating plates 22 are arranged at both the top and the bottom of the inner side of the installation groove. The outer ends of the rotating plates 22 are rotatably sleeved on the surface of the cross bar 15, and the inner ends of the rotating plates 22 are hinged to the inner ends of the inner cross plates 23. The outer ends of the inner cross plates 23 are correspondingly buckled in the inner grooves of the polishing plate 24. A vertical rod 25 penetrating the outer end of the inner cross plate 23 is arranged in the inner groove of the polishing plate 24. A limiting rod is correspondingly arranged through the centers of the two inner cross plates 23, and a spring 26 is sleeved on the surface of the limiting rod. The two inner cross plates 23 are connected by means of the spring 26. When the bottom frame 5 is correspondingly buckled at the bottom of the rotating ring 14 by means of the second convex block 17, the rotating ring 14 is rotated. The spiral effect between the rotating ring 14 and the second convex block 17 causes the top of the second convex block 17 to gradually enter the inside of the rotating ring 14. The top end of the second convex block 17 gradually moves upward inside the rotating ring 14. The side of the top of the second convex block 17 presses the bottom rotating plate 22. When the rotating plate 22 rotates by means of the cross bar 15, due to the limitation of the vertical rod 25 and the limiting rod on the two inner cross plates 23, the rotating rotating plate 22 causes the inner cross plates 23 to gradually move out of the installation groove. The bottom rotating plate 22 drives the top rotating plate 22 to rotate by means of the inner cross plates 23. The two inner cross plates 23 gradually squeeze the spring 26 during the rotation of the rotating plates 22, and the outer side surface of the polishing plate 24 gradually fits the inner side wall of the bearing outer ring 3 during the process of the inner cross plates 23 moving out of the installation groove. The top frame 4 is correspondingly buckled at the top of the rotating ring 14 by means of the first convex block 16, and the clamping bars 19 and the inner grooves 20 are correspondingly buckled. When the column rod 6 rotates to drive the first convex block 16 to rotate, the first convex block 16 causes the rotating ring 14 to rotate synchronously with the column rod 6, and the inner side wall of the bearing outer ring 3 is polished by means of the rotating polishing plate 24.

[0040] The present invention also provides a method for using an automobile bearing manufacturing device, and the method for using is applied to the above-mentioned automobile bearing manufacturing device. Referring to Figures 1 to 6 as shown, it includes the following steps:

[0041] S1. Rotate two nuts 9, and use the spiral effect of the nuts 9 and the cross frame 2 to push the moving frame 8 to move. When the moving frame 8 drives the frame plate 11 to move synchronously, the sliding fit between the inclined rod 13 and the frame plate 11 adjusts the relative distance between the two clamping pieces 12. Place the bearing outer ring 3 correspondingly between the two moving frames 8, and use the two clamping pieces 12 to complete the limiting clamping of the bearing outer ring 3;

[0042] S2. Before placing the bearing outer ring 3, sleeved the bottom frame 5 correspondingly on the surface of the column rod 6, and sleeved the rotating ring 14 correspondingly on the surface of the column rod 6, and the rotating ring 14 is at the top of the bottom frame 5. The bearing outer ring 3 drives the bottom frame 5 to move synchronously by means of the rotating ring 14 until the bearing outer ring 3 is limited between the two clamping pieces 12;

[0043] S3. Align the second convex block 17 of the bottom frame 5 with the bottom end of the rotating ring 14, and rotate the rotating ring 14. The bottom end of the rotating ring 14 is spirally sleeved on the surface of the second convex block 17. The top end of the second convex block 17 pushes the outer side of the grinding plate 24 of the grinding structure to fit with the inner side wall of the bearing outer ring 3, and the grinding ring 18 of the bottom frame 5 fits with the bottom side of the bearing outer ring 3. After the top frame 4 uses the clamping strip 19 of the first convex block 16 to be correspondingly buckled with the inner groove 20 of the rotating ring 14, start the motor. The motor drives the top frame 4 and the bottom frame 5 to rotate synchronously by means of the column rod 6, and the top frame 4 drives the rotating ring 14 to rotate synchronously by means of the first convex block 16;

[0044] S4. During the rotation of the rotating ring 14, the inner side wall of the bearing outer ring 3 is polished by the grinding plate 24, and when the top frame 4 and the bottom frame 5 respectively polish the top side and the bottom side of the bearing outer ring 3 by means of the grinding ring 18, the inner side walls of the top frame 4 and the bottom frame 5 respectively polish the top and the bottom of the circumferential outer side of the bearing outer ring 3;

[0045] S5. After the grinding is completed, remove the top frame 4, and then rotate the rotating ring 14 in the reverse direction to separate the rotating ring 14 from the second convex block 17. Rotate the nut 9, and when the moving frame 8 moves, the two frame plates 11 are separated, which is convenient to remove the polished bearing outer ring 3, and complete the polishing process of the bearing outer ring 3 during the manufacturing process.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. An automobile bearing manufacturing device, comprising a bottom plate (1), characterized in that: On the front and rear sides of the top surface of the bottom plate (1), horizontally arranged cross frames (2) are installed in parallel. A clamping structure for correspondingly clamping the outer ring (3) of the bearing is movably clamped at the center of the two cross frames (2). Inside the outer ring (3) of the bearing, a grinding structure for correspondingly sleeving and grinding the inner side wall of the outer ring (3) of the bearing is arranged. At the top and bottom of the grinding structure, a top frame (4) and a bottom frame (5) are respectively arranged. Column rods (6) penetrate through the centers of the top frame (4) and the bottom frame (5). The bottom end of the column rod (6) is correspondingly connected to the output shaft of the motor. The surface of the bottom end of the column rod (6) is connected with a circular plate (7). The column rod (6) is rotationally matched with the through groove at the center of the top surface of the bottom plate (1) by means of the circular plate (7). The rotation of the column rod (6) drives the top frame (4) and the bottom frame (5) to rotate. The top frame (4) drives the grinding structure to rotate synchronously. The top frame (4), the grinding structure and the bottom frame (5) cooperate to grind the outer ring (3) of the bearing. Horizontal grooves are arranged on the surface of the cross frame (2). The clamping structure includes a moving frame (8). The moving frame (8) is slidably matched with the cross frame (2) by means of the horizontal grooves. Nuts (9) that are helically matched with the cross frame (2) are arranged on both sides of the moving frame (8). Protrusions (10) that are slidably matched with the circumferential outer side surface of the cross frame (2) are arranged on the top and bottom surfaces of the moving frame (8). At the inner ends of the moving frame (8), shelf plates (11) are correspondingly inserted. At the inner ends of the two opposite shelf plates (11), the outer ring (3) of the bearing is correspondingly clamped by clip pieces (12). The outer ends of the shelf plates (11) are inside the moving frame (8). A horizontally arranged inclined rod (13) is fixed inside the horizontal groove. The inclined rod (13) correspondingly penetrates through the inner ends of the shelf plates (11).

2. The automobile bearing manufacturing equipment according to claim 1, wherein: The grinding structure includes a rotating ring (14). The rotating ring (14) is correspondingly inside the outer ring (3) of the bearing. A plurality of mounting grooves are annularly and equidistantly arranged on the circumferential side surface of the rotating ring (14). Cross bars (15) are fixedly connected to the top and bottom of the inner side of the mounting grooves. The length of the mounting grooves is greater than the height of the outer ring (3) of the bearing.

3. The automobile bearing manufacturing equipment according to claim 2, wherein: First convex blocks (16) and second convex blocks (17) are respectively arranged at the centers of the interiors of the top frame (4) and the bottom frame (5). The top frame (4) is correspondingly buckled on the top of the rotating ring (14) by means of the first convex blocks (16). The bottom frame (5) is helically matched with the bottom of the rotating ring (14) by means of the second convex blocks (17). Grinding rings (18) are arranged on the inner side walls of the top frame (4) and the bottom frame (5). The two grinding rings (18) are respectively in corresponding contact with the top side edges and the bottom side edges of the outer ring (3) of the bearing. The column rod (6) correspondingly penetrates through the centers of the first convex blocks (16) and the second convex blocks (17).

4. The automobile bearing manufacturing equipment according to claim 3, wherein: A plurality of clamping bars (19) are arranged in parallel at equal intervals on the outer circumferential side surface of the first convex block (16), and inner grooves (20) corresponding to the plurality of clamping bars (19) one by one are arranged at the top of the inner side wall of the rotary ring (14). By using the cooperation of the clamping bars (19) and the inner grooves (20), the column rod (6) drives the rotary ring (14) to rotate synchronously by means of the first convex block (16). The bottom of the second convex block (17) is fixedly connected to the bottom frame (5) by a plurality of connecting plates (21), and leakage grooves are arranged between adjacent two connecting plates (21).

5. The automobile bearing manufacturing equipment according to claim 4, characterized in that: Rotary plates (22) are arranged at both the top and the bottom of the inner side of the installation groove. The outer ends of the rotary plates (22) are rotatably sleeved on the surface of the cross bar (15). The inner ends of the rotary plates (22) are hinged to the inner ends of the inner cross plates (23). The outer ends of the inner cross plates (23) are correspondingly buckled in the inner grooves of the grinding plate (24). A vertical rod (25) penetrating through the outer end of the inner cross plate (23) is arranged in the inner groove of the grinding plate (24). A limiting rod is correspondingly arranged through the centers of the two inner cross plates (23), and a spring (26) is sleeved on the surface of the limiting rod. The two inner cross plates (23) are connected by the spring (26).

6. A method of using a manufacturing device for automotive bearings, characterized in that: The usage method applies the automobile bearing manufacturing equipment according to claim 5, and comprises the following steps: S1. Rotate the two nuts (9), and use the spiral effect of the nuts (9) and the cross frame (2) to push the moving frame (8) to move. When the moving frame (8) drives the frame plate (11) to move synchronously, the sliding cooperation between the inclined rod (13) and the frame plate (11) is used to adjust the relative distance between the two clamping pieces (12). Place the bearing outer ring (3) correspondingly between the two moving frames (8), and use the two clamping pieces (12) to complete the limiting clamping of the bearing outer ring (3); S2. Before placing the bearing outer ring (3), sleeved the bottom frame (5) correspondingly on the surface of the column rod (6), sleeved the rotary ring (14) correspondingly on the surface of the column rod (6), and the rotary ring (14) is located at the top of the bottom frame (5). The bearing outer ring (3) drives the bottom frame (5) to move synchronously by means of the rotary ring (14) until the bearing outer ring (3) is limited between the two clamping pieces (12); S3. Align the second convex block (17) of the bottom frame (5) with the bottom end of the rotary ring (14), rotate the rotary ring (14), and the bottom end of the rotary ring (14) is spirally sleeved on the surface of the second convex block (17). The top end of the second convex block (17) pushes the outer side surface of the grinding plate (24) of the grinding structure to be attached to the inner side wall of the bearing outer ring (3), and the grinding ring (18) of the bottom frame (5) is attached to the bottom side of the bearing outer ring (3). After the clamping bars (19) of the first convex block (16) of the top frame (4) are correspondingly buckled with the inner grooves (20) of the rotary ring (14), start the motor, and the motor drives the top frame (4) and the bottom frame (5) to rotate synchronously by means of the column rod (6). The top frame (4) drives the rotary ring (14) to rotate synchronously by means of the first convex block (16); S4. During the rotation of the swivel ring (14), the inner wall of the outer bearing ring (3) is polished by the grinding plate (24). When the top frame (4) and the bottom frame (5) respectively polish the top side and the bottom side of the outer bearing ring (3) by means of the grinding rings (18), the inner walls of the top frame (4) and the bottom frame (5) respectively polish the top and the bottom of the circumferential outer side of the outer bearing ring (3). S5. After the grinding is completed, the top frame (4) is removed, the swivel ring (14) is rotated in the reverse direction to separate the swivel ring (14) from the second convex block (17), and the nut (9) is rotated. During the movement of the moving frame (8), the two frame plates (11) are separated, which facilitates the removal of the polished outer bearing ring (3), thus completing the polishing process of the outer bearing ring (3) during the manufacturing process.

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