Bearing press fitting device

Abstract

This utility model discloses a bearing press-fitting device, specifically relating to the field of automation equipment technology, including: a press head lifting assembly; a bearing press-fitting support assembly; and a movable bracket, wherein buffers and limit pins are fixedly installed on the upper surface of the movable bracket and at both moving ends of the bearing press-fitting support assembly, the buffers and limit pins being able to buffer the movement of the bearing press-fitting support assembly; a translational sliding mechanism is provided between the movable bracket and the bearing press-fitting support assembly, the translational sliding mechanism being able to slide the bearing press-fitting support assembly below the press head lifting assembly. This utility model, by setting up a bearing press-fitting support assembly, achieves the assembly of the bearing outer ring and the brake hub, and then uses the translational sliding mechanism to push the bearing press-fitting support assembly to move, cooperating with the press head lifting assembly to achieve the press-fitting of the brake hub and the bearing inner ring, thus accelerating the efficiency of the press-fitting of the brake hub and the bearing inner ring.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, and more specifically, to a bearing press-fitting device. Background Technology

[0002] In the wheel end systems of modern automobiles, construction machinery, and other transportation vehicles, a reliable connection between the brake wheel hub (or wheel hub flange) and the inner ring of the bearing is crucial. This connection is usually achieved through an interference fit, where the inner diameter of the bearing inner ring is slightly smaller than the outer diameter of the wheel hub journal. An axial force is applied to force the bearing inner ring into the designated position on the wheel hub journal. This process is called "press fitting." A common press fitting method is to use a general-purpose mechanical / hydraulic press, that is, a standard punch press or a four-column hydraulic press with a special press head.

[0003] However, in actual use, existing press-fitting devices often fail to press-fit properly on the first attempt due to the lack of positioning or fixing measures, which reduces processing efficiency. In order to improve the press-fitting efficiency of bearings, a bearing press-fitting device is proposed as a further improvement. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bearing press-fitting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing press-fitting device, comprising:

[0006] A pressure head lifting assembly used for press-fitting brake wheel hubs and bearing inner rings;

[0007] A bearing press-fit support assembly for assembling the outer ring of the bearing with the brake hub; and...

[0008] A movable bracket arranged along the sliding direction of the bearing press-fit support assembly has a buffer and a limit pin fixedly installed on its upper surface and at both moving ends of the bearing press-fit support assembly. The buffer and limit pin can buffer the movement of the bearing press-fit support assembly.

[0009] A translational sliding mechanism is provided between the movable bracket and the bearing press-fit support assembly, which enables the bearing press-fit support assembly to slide below the press head lifting assembly;

[0010] The pressure head lifting assembly is fixed to the movable bracket as a whole by the support frame.

[0011] Furthermore, the movable support includes:

[0012] A fixed base plate located below the bearing press-fit support assembly provides support for the bearing press-fit support assembly;

[0013] Side baffles arranged along the direction of movement of the bearing press-fit support assembly and located on both sides of the upper surface of the fixed base plate restrict the bearing press-fit support assembly that slides between two parallel side baffles.

[0014] A wear-resistant plate is embedded in the upper surface of the fixed base plate, and the wear-resistant plate is parallel to the side baffle.

[0015] Additionally, an upper limit plate is fixedly installed on the upper surface of the side baffle, which cooperates with the fixed base plate to restrict the bearing press-fit support assembly.

[0016] Furthermore, the bearing press-fit support assembly includes:

[0017] A movable support plate that slides between two parallel side baffles, the top of which is limited by an upper limit plate;

[0018] Multiple wear-resistant blocks are fixedly installed on the side of the movable support plate. The wear-resistant blocks are in contact with the wear-resistant plate and slide along the wear-resistant plate.

[0019] The movable support plate has a coaxially arranged press-fit connecting plate, press-fit pad, and press-fit support plate fixedly installed in the middle from bottom to top; the bearing outer ring positioning shaft is fixedly installed in the middle of the press-fit connecting plate.

[0020] Furthermore, the translational sliding mechanism includes:

[0021] A cylinder mounting base is fixedly connected to the upper surface of the movable bracket. The cylinder mounting base is fixedly installed with a cylinder, and the piston rod of the cylinder is fixedly connected to the movable support plate.

[0022] Furthermore, the pressure head lifting assembly includes:

[0023] An electric cylinder is fixedly mounted on a support frame, with its output shaft facing the fixed base plate and perpendicular to the fixed base plate.

[0024] And, the pressure head that moves with the output shaft of the electric cylinder;

[0025] A first pad is fixedly installed on the output shaft of the electric cylinder. A connecting block is fixedly installed on the bottom end of the first pad. A second pad is fixedly installed on the bottom end of the connecting block. A positioning sleeve is fixedly installed on the bottom end of the second pad. The pressure head is fixedly installed on the bottom end of the positioning sleeve. A pressure sensor is fixedly installed between the first pad and the output shaft of the electric cylinder.

[0026] A guide sleeve is fixedly installed on the support frame, and a guide post passing through the guide sleeve is fixedly installed on the top of the connecting block.

[0027] Furthermore, the support frame includes:

[0028] A base fixed to the ground, which provides support;

[0029] The front support leg and the rear support leg are fixedly connected to the upper surface of the base, and the front support leg and the rear support leg are distributed at both ends of the base;

[0030] The lower bracket and the upper bracket are fixedly connected to the side of the rear support leg, and the upper bracket is located above the lower bracket. The pressure head lifting assembly is fixedly installed in the middle of the upper bracket. The lower bracket is fixedly connected to the top of the front support leg. The top of the lower bracket is fixedly connected to the top of the fixed base plate.

[0031] In addition, a column connects the lower support and the upper support, wherein the end of the lower support away from the rear support leg is fixedly connected to the end of the upper support away from the rear support leg through the column.

[0032] The technical effects and advantages of this utility model are as follows:

[0033] 1. Compared with the existing technology, by setting up a bearing press-fit support assembly, the outer ring of the bearing and the brake hub are assembled together. Then, the translation sliding mechanism is used to push the movement of the bearing press-fit support assembly, and the press head lifting assembly is used to press the brake hub and the inner ring of the bearing together, thus speeding up the efficiency of press-fitting the brake hub and the inner ring of the bearing.

[0034] 2. Compared with the existing technology, by setting a buffer and a limit pin, the buffer buffers the movement of the movable support plate, reducing the impact of the movable support plate's movement on the limit pin, and the limit pin provides rigid limitation in the direction of movement of the movable support plate, thereby increasing the service life of the limit pin.

[0035] 3. Compared with existing technologies, by setting wear-resistant plates and wear-resistant blocks, the wear resistance of the movable support plate during movement is increased; direct contact between the movable support plate and the fixed base plate is avoided, and the wear-resistant plates and wear-resistant blocks can be replaced after wear, reducing costs and making manufacturing convenient; by setting a base, front support legs and rear support legs, the front support legs and rear support legs are connected into a whole to build a support frame; thus, the rear support legs and columns provide a stable fixed frame for the lower support and upper support. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0037] Figure 2 This is a schematic diagram of the structure of the pressure head lifting assembly of this utility model.

[0038] Figure 3 This is a structural schematic diagram of the base of this utility model.

[0039] Figure 4 This is a schematic diagram of the structure of the rear support leg of this utility model.

[0040] Figure 5 This is a schematic diagram of the structure of the lower support of this utility model.

[0041] Figure 6 This is a schematic diagram of the upper support structure of this utility model.

[0042] Figure 7 This is a schematic diagram of the structure of the movable support of this utility model.

[0043] Figure 8 This is a schematic diagram of the bearing press-fit support assembly of this utility model.

[0044] The attached figures are labeled as follows:

[0045] 10. Pressure head lifting assembly;

[0046] 11. Electric cylinder; 12. Pressure head; 13. Pad block one; 14. Connecting block; 15. Pad block two;

[0047] 16. Positioning sleeve; 17. Pressure sensor; 18. Guide sleeve; 19. Guide post;

[0048] 20. Bearing press-fit support assembly;

[0049] 21. Movable support plate; 22. Wear-resistant block; 23. Press-fit connecting plate; 24. Press-fit pad;

[0050] 25. Press-fit support plate;

[0051] 30. Movable support frame;

[0052] 31. Buffer; 32. Limit pin; 33. Fixed base plate; 34. Side baffle; 35. Wear-resistant plate;

[0053] 36. Upper limit plate;

[0054] 40. Translation and sliding mechanism; 41. Cylinder mounting base; 42. Cylinder;

[0055] 50. Support frame; 51. Base; 52. Front support leg; 53. Rear support leg;

[0056] 54. Lower support;

[0057] 541. First side connecting plate; 542. Upper support plate; 543. Lower support plate; 544. First reinforcing plate;

[0058] 545. First guide post;

[0059] 55. Install the support frame;

[0060] 551. Second side connecting plate; 552. Upper mounting plate; 553. Lower mounting plate; 554. Second reinforcing plate;

[0061] 555, Second guide post;

[0062] 56. Column; 57. Electrical control cabinet; 58. Indicator light;

[0063] a. Bearing outer ring positioning shaft. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0065] As attached Figure 1-4 The bearing press-fitting device shown includes:

[0066] Press head lifting assembly 10 for press fitting of brake wheel hub and bearing inner ring;

[0067] 20 Bearing press-fit support assembly for assembling bearing outer ring and brake hub;

[0068] In addition, a movable bracket 30 is arranged along the sliding direction of the bearing press-fit support assembly 20. The upper surface of the movable bracket 30 and the two moving ends of the bearing press-fit support assembly 20 are fixedly installed with a buffer 31 and a limiting pin 32. The buffer 31 and the limiting pin 32 can buffer the movement of the bearing press-fit support assembly 20.

[0069] A translational sliding mechanism 40 is provided between the movable bracket 30 and the bearing press-fit support assembly 20. This translational sliding mechanism 40 enables the bearing press-fit support assembly 20 to slide below the press head lifting assembly 10.

[0070] The pressure head lifting assembly 10 is fixed together with the movable bracket 30 via the support frame 50.

[0071] The guide sleeve 18 and guide column 19 in the pressure head lifting assembly 10 not only provide stable support for the pressure head 12 and reduce friction, but also ensure that when the electric cylinder 11 in the pressure head lifting assembly 10 drives the pressure head 12 to move up and down, it can be accurately positioned and precisely aligned with the bearing press support assembly 20, avoiding misalignment that could lead to press deviation or part collision, thus improving press accuracy and press efficiency.

[0072] The bearing press-fit support assembly 20, used for assembling the outer ring of the bearing with the brake hub, is controlled by the cylinder 42 of the translation sliding mechanism 40. It slides along the sliding direction constructed by the side baffle 34 and the upper limit plate 36 of the movable bracket 30. When the bearing press-fit support assembly 20 slides to the moving end, it is buffered by the buffer 31 and the limit pin 32, so that the moving bearing press-fit support assembly 20 can be quickly stabilized and the efficiency can be improved.

[0073] Therefore, when the bearing press-fit support assembly 20 slides below the press head lifting assembly 10, the electric cylinder 11 in the press head lifting assembly 10 drives the press head 12 to accurately align with the bearing outer ring positioning shaft a of the bearing press-fit support assembly 20. That is, the electric cylinder 11 drives the press head 12 to press down on the brake hub, and the brake hub and the bearing outer ring are assembled together, completing the assembly of the brake hub and the bearing outer ring; the bearing outer ring at the other end of the brake hub is assembled in the same way.

[0074] In a preferred embodiment, as shown in the appendix Figure 7 As shown, the movable support 30 includes:

[0075] A fixed base plate 33 located below the bearing press-fit support assembly 20 provides support for the bearing press-fit support assembly 20.

[0076] The side baffles 34 arranged along the direction of movement of the bearing press-fit support assembly 20 and located on both sides of the upper surface of the fixed base plate 33 restrict the sliding of the bearing press-fit support assembly 20 between the two parallel side baffles 34.

[0077] A wear-resistant plate 35 is embedded in the upper surface of the fixed base plate 33, and the wear-resistant plate 35 is parallel to the side baffle 34.

[0078] In addition, an upper limit plate 36 is fixedly installed on the upper surface of the side baffle 34, which cooperates with the fixed base plate 33 to restrict the bearing press-fit support assembly 20;

[0079] The movable bracket 30 limits the movement of the movable support plate 21 by the side baffle 34 to prevent displacement; and limits the movement of the top of the movable support plate 21 by the upper limit plate 36 to prevent displacement.

[0080] When the movable support plate 21 needs to stop at a certain position, it is first acted upon by the buffer 31, and its speed gradually decreases. When it reaches the limit pin 32, the speed approaches 0. At this point, the movable support plate 21 slowly contacts the limit pin 32, reducing the impact and providing rigid limitation in the direction of movement of the movable support plate 21. That is, the buffer 31 is used to buffer the movement of the movable support plate 21, reducing the impact of the movement of the movable support plate 21 on the limit pin 32 and increasing the service life of the limit pin 32. The wear-resistant plate 35 is made of wear-resistant material, which is mainly used to increase the wear resistance of the movable support plate 21 during movement. It avoids direct contact between the movable support plate 21 and the fixed base plate 33. Moreover, the wear-resistant plate 35 can be replaced after wear, reducing costs and making it easy to manufacture.

[0081] In a preferred embodiment, as shown in the appendix Figure 8 As shown, the bearing press-fit support assembly 20 includes:

[0082] A movable support plate 21 slides between two parallel side baffles 34, the top of which is limited by an upper limit plate 36.

[0083] Multiple wear-resistant blocks 22 are fixedly installed on the side of the movable support plate 21. The wear-resistant blocks 22 are in contact with the wear-resistant plate 35 and slide along the wear-resistant plate 35.

[0084] The movable support plate 21 is fixedly installed from bottom to top in the middle of a coaxially arranged press-fit connecting plate 23, press-fit pad 24 and press-fit support plate 25; the bearing outer ring positioning shaft a is fixedly installed in the middle of the press-fit connecting plate 23.

[0085] When the movable support plate 21 of the bearing press-fit support assembly 20 slides between the two parallel side baffles 34 and the upper limit plate 36, multiple wear-resistant blocks 22 on the side of the movable support plate 21 contact the wear-resistant plate 35. Since the wear-resistant blocks 22 and the wear-resistant plate 35 are made of the same material, they are used to increase the wear resistance of the movable support plate 21 during movement and to prevent the movable support plate 21 from directly contacting the fixed base plate 33. Therefore, the wear-resistant blocks 22 can be replaced after they wear out, thereby reducing costs.

[0086] The movable support plate 21 is fixedly installed from bottom to top in the middle of the plate, with a coaxially arranged press-fit connecting plate 23, press-fit pad 24 and press-fit support plate 25; the bearing outer ring positioning shaft a is fixedly installed in the middle of the press-fit connecting plate 23; the press-fit support plate 25 is mainly used to support and position the brake hub to be assembled.

[0087] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2As shown, the translational sliding mechanism 40 includes: a cylinder mounting base 41 fixedly connected to the upper surface of the movable bracket 30, on which a cylinder 42 is fixedly mounted, and the piston rod of the cylinder 42 is fixedly connected to the movable support plate 21, thereby pushing the movable support plate 21 to move.

[0088] In a preferred embodiment, as shown in the appendix Figure 5 As shown, the pressure head lifting assembly 10 includes:

[0089] An electric cylinder 11 is fixedly mounted on a support frame 50. The output shaft of the electric cylinder 11 faces the fixed base plate 33 and is perpendicular to the fixed base plate 33.

[0090] And, the pressure head 12 that moves with the output shaft of the electric cylinder 11;

[0091] A pad 13 is fixedly installed on the output shaft of the electric cylinder 11. A connecting block 14 is fixedly installed on the bottom end of the pad 13. A second pad 15 is fixedly installed on the bottom end of the connecting block 14. A positioning sleeve 16 is fixedly installed on the bottom end of the second pad 15. A pressure head 12 is fixedly installed on the bottom end of the positioning sleeve 16. A pressure sensor 17 is fixedly installed between the pad 13 and the output shaft of the electric cylinder 11.

[0092] A guide sleeve 18 is fixedly installed on the support frame 50, and a guide post 19 passing through the guide sleeve 18 is fixedly installed on the top of the connecting block 14.

[0093] The output shaft of the electric cylinder 11 of the pressure head lifting assembly 10 moves downward, driving the pressure head 12 and pressure sensor 17 to move. Since the outer ring of the bearing below the brake hub is fixed and remains stationary when the brake hub is pressed, the brake hub and the outer ring of the bearing are assembled together when the brake hub moves down. Moreover, when the pressure head 12 presses the brake hub, the pressure sensor 17 can be used to test the pressure. After the pressure signal is transmitted to the control system, the control system judges the working status of the assembly process based on the pressure data.

[0094] Among them, pad 13 is mainly used to install and fix pressure sensor 17; the upper part of connecting block 14 is connected to pad 13, and the lower part of connecting block 14 is connected to pad 2 15, thus playing a transition role; pad 2 15 mainly serves as a transition and fixes positioning sleeve 16; positioning sleeve 16 is mainly used for fixing and precisely positioning pressure head 12; pressure sensor 17 is installed between the output end of electric cylinder 11 and pad 13; the lower part of pressure sensor 17 is also connected to connecting block 14, pad 2 15, positioning sleeve 16 and pressure head 12; guide sleeve 18 is mainly used for precise positioning of guide column 19, providing stable support and reducing friction; guide column 19 is mainly used to ensure precise alignment of pressure head 12 during up and down movement by cooperating with guide sleeve 18, avoiding dimensional deviations or part collisions caused by misalignment.

[0095] In a preferred embodiment, as shown in the appendix Figure 6 As shown, the support frame 50 includes:

[0096] A base 51 fixed to the ground provides support;

[0097] The front support leg 52 and the rear support leg 53 are fixedly connected to the upper surface of the base 51, and the front support leg 52 and the rear support leg 53 are distributed at both ends of the base 51.

[0098] The lower support 54 and the upper support 55 are fixedly connected to the side of the rear support leg 53, and the upper support 55 is located above the lower support 54. The pressure head lifting assembly 10 is fixedly installed in the middle of the upper support 55. The lower support 54 is fixedly connected to the top of the front support leg 52, and the top of the lower support 54 is fixedly connected to the top of the fixed base plate 33.

[0099] And, a column 56 connects the lower support 54 and the upper support 55, with the end of the lower support 54 away from the rear support leg 53 being fixedly connected to the end of the upper support 55 away from the rear support leg 53 via the column 56;

[0100] The base 51 of the support frame 50 is mainly used to fix and support the front support leg 52 and the rear support leg 53, so that the front support leg 52 and the rear support leg 53 are connected into a whole. The lower bracket 54, the upper bracket 55 and the column 56 form a press-fit vertical space, thereby constructing a support frame 50.

[0101] An electrical control cabinet 57 and an indicator light 58 are also installed on the top of the rear outrigger 53; the indicator light 58 is mainly used for working status indication and alarm reminder.

[0102] Among them, the lower bracket 54 is mainly used to install and fix the movable bracket 30; the upper bracket 55 is mainly used to install and fix the electric cylinder 11 and guide sleeve 18 of the pressure head lifting assembly 10; the column 56 is mainly used to connect the movable bracket 30 and the upper bracket 55; and the locking nut can fix the column 56.

[0103] Specifically, the lower support 54 includes: a first side connecting plate 541 fixedly connected to the side of the rear support leg 53; and an upper support plate 542 and a lower support plate 543 fixedly connected to the side of the first side connecting plate 541. The upper support plate 542 is used to install the movable support 30 and the column 56. The lower support plate 543 is located below the upper support plate 542, and the bottom of the lower support plate 543 is fixedly connected to the top of the front support leg 52. The bottom surface of the upper support plate 542 is fixedly connected to the top surface of the lower support plate 543 through multiple first reinforcing plates 544. A first guide post 545 is fixedly installed between the upper support plate 542 and the lower support plate 543, away from the first side connecting plate 541. The bottom end of column 56 passes through the upper support plate 542, the lower support plate 543, and the first guide post 545, and is fixedly connected to the upper support plate 542 and the lower support plate 543 respectively by locking nuts; the first side connecting plate 541 is mainly used for connecting and fixing the lower bracket 54 and the rear support leg 53; the upper support plate 542 is mainly used for installing the movable bracket 30 and the column 56; the lower support plate 543 is mainly used to form a rigid structure together with the upper support plate 542, the first reinforcing plate 544, and the first guide post 545; the first reinforcing plate 544 is mainly used to strengthen the overall rigidity; the first guide post 545 is mainly used to connect the upper support plate 542 and the lower support plate 543, strengthen the overall rigidity, and can also fix the column 56;

[0104] As attached Figure 6 As shown, the specific upper support 55 includes: a second side connecting plate 551 fixedly connected to the side of the rear support leg 53; and an upper mounting plate 552 and a lower mounting plate 553 fixedly connected to the side of the second side connecting plate 551. The upper mounting plate 552 and the lower mounting plate 553 are used to install and fix the pressure head lifting assembly 10. The lower mounting plate 553 is located below the upper mounting plate 552. The bottom surface of the upper mounting plate 552 is fixedly connected to the top surface of the lower mounting plate 553 through a plurality of second reinforcing plates 554. A second guide post 555 is fixedly installed between the upper mounting plate 552 and the lower mounting plate 553 and away from the second side connecting plate 551. The top end of the column 56 passes through the upper mounting plate 552, the lower mounting plate 553 and the second guide post 555 and is fixedly connected to the upper mounting plate 552 and the lower mounting plate 553 respectively by locking nuts. The second side connecting plate 551 is mainly used to connect and fix the upper bracket 55 to the rear support leg 53; the upper mounting plate 552 is mainly used to install and fix the electric cylinder 11 and guide sleeve 18 of the pressure head lifting assembly 10; the lower mounting plate 553 is mainly used to form a rigid structure together with the upper mounting plate 552, the second reinforcing plate 554 and the second guide column 555; the second reinforcing plate 554 is mainly used to strengthen the overall rigidity; the second guide column 555 is mainly used to connect the upper mounting plate 552 and the lower mounting plate 553 to strengthen the overall rigidity, and can also fix the column 56.

[0105] Working principle of this utility model:

[0106] In use, the cylinder 42 of the translation sliding mechanism 40 pushes the movable support plate 21 along the slot in the movable bracket 30, that is, along the side baffle 34, to move above the front support leg 52. At this time, the buffer 31 and the limit pin 32 work to restrict the movable support plate 21. At this time, the robot grabs the outer ring of the bearing and places it on the outer ring positioning shaft a. Then another robot grabs the brake hub and places it on the press-fit support plate 25, which is positioned by the inner hole. The center of the brake hub coincides with the center of the outer ring of the bearing.

[0107] Then, cylinder 42 starts working, moving the movable support plate 21 along the slot in the movable bracket 30, i.e., along the side baffle 34, to the other end. After the buffer 31 and the limit pin 32 are positioned, the center of the brake wheel hub and the outer ring of the bearing is located below the pressure head 12. At this time, the electric cylinder 11 drives the pressure head 12 to press down on the brake wheel hub, and the brake wheel hub and the outer ring of the bearing are assembled together, completing the assembly of the brake wheel hub and the outer ring of the bearing. The outer ring of the bearing at the other end of the brake wheel hub is assembled in the same way.

[0108] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0109] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing press-fitting device, characterized in that: include: Press head lifting assembly (10) for press fitting of brake wheel hub and bearing inner ring. Bearing press-fit support assembly (20) for assembling bearing outer ring and brake hub. In addition, a movable bracket (30) is arranged along the sliding direction of the bearing press-fit support assembly (20). The upper surface of the movable bracket (30) and the two moving ends of the bearing press-fit support assembly (20) are fixedly equipped with a buffer (31) and a limit pin (32). The buffer (31) and the limit pin (32) can buffer the movement of the bearing press-fit support assembly (20). A translational sliding mechanism (40) is provided between the movable bracket (30) and the bearing press-fit support assembly (20), which enables the bearing press-fit support assembly (20) to slide below the press head lifting assembly (10); The pressure head lifting assembly (10) is fixed together with the movable bracket (30) by the support frame (50).

2. The bearing press-fitting device according to claim 1, characterized in that: The movable support (30) includes: A fixed base plate (33) located below the bearing press-fit support assembly (20) provides support for the bearing press-fit support assembly (20); The side baffles (34) arranged along the direction of movement of the bearing press-fit support assembly (20) and located on both sides of the upper surface of the fixed base plate (33) restrict the bearing press-fit support assembly (20) that slides between the two parallel side baffles (34); A wear-resistant plate (35) is embedded in the upper surface of the fixed base plate (33), and the wear-resistant plate (35) is parallel to the side baffle (34); In addition, an upper limit plate (36) is fixedly installed on the upper surface of the side baffle (34), which cooperates with the fixed base plate (33) to restrict the bearing press-fit support assembly (20).

3. The bearing press-fitting device according to claim 2, characterized in that: The bearing press-fit support assembly (20) includes: A movable support plate (21) slides between two parallel side baffles (34), the top of which is limited by an upper limit plate (36); Multiple wear-resistant blocks (22) are fixedly installed on the side of the movable support plate (21). The wear-resistant blocks (22) are in contact with the wear-resistant plate (35) and slide along the wear-resistant plate (35). The movable support plate (21) is fixedly installed from bottom to top with a coaxially arranged press-fit connecting plate (23), press-fit pad (24) and press-fit support plate (25); the press-fit connecting plate (23) is fixedly installed with a bearing outer ring positioning shaft (a) in the middle.

4. The bearing press-fitting device according to claim 3, characterized in that: The translational sliding mechanism (40) includes: A cylinder mounting base (41) is fixedly connected to the upper surface of the movable bracket (30), and a cylinder (42) is fixedly mounted on the cylinder mounting base (41). The piston rod of the cylinder (42) is fixedly connected to the movable support plate (21).

5. The bearing press-fitting device according to claim 2, characterized in that: The pressure head lifting assembly (10) includes: An electric cylinder (11) is fixedly mounted on a support frame (50). The output shaft of the electric cylinder (11) faces the fixed base plate (33) and is perpendicular to the fixed base plate (33). And, the pressure head (12) moves with the output shaft of the electric cylinder (11). A pad block one (13) is fixedly installed on the output shaft of the electric cylinder (11). A connecting block (14) is fixedly installed on the bottom end of the pad block one (13). A pad block two (15) is fixedly installed on the bottom end of the connecting block (14). A positioning sleeve (16) is fixedly installed on the bottom end of the pad block two (15). The pressure head (12) is fixedly installed on the bottom end of the positioning sleeve (16). A pressure sensor (17) is fixedly installed between the pad block one (13) and the output shaft of the electric cylinder (11). A guide sleeve (18) is fixedly installed on the support frame (50), and a guide post (19) passing through the guide sleeve (18) is fixedly installed on the top of the connecting block (14).

6. The bearing press-fitting device according to claim 1, characterized in that: The support frame (50) includes: A base (51) fixed to the ground provides support; The front support leg (52) and the rear support leg (53) are fixedly connected to the upper surface of the base (51), and the front support leg (52) and the rear support leg (53) are distributed at both ends of the base (51); The lower bracket (54) and upper bracket (55) are fixedly connected to the side of the rear support leg (53), and the upper bracket (55) is located above the lower bracket (54). The pressure head lifting assembly (10) is fixedly installed in the middle of the upper bracket (55). The lower bracket (54) is fixedly connected to the top of the front support leg (52). The top of the lower bracket (54) is fixedly connected to the top of the fixed base plate (33). And a column (56) connecting the lower support (54) and the upper support (55), wherein the end of the lower support (54) away from the rear support leg (53) is fixedly connected to the end of the upper support (55) away from the rear support leg (53) through the column (56).

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