A precision bearing inner ring assembly fixture

Abstract

This utility model relates to the technical field of precision bearing production equipment, and provides a precision bearing inner ring assembly fixture, including a mounting plate, a first electrically controlled telescopic rod fixedly mounted on the outer surface of the mounting plate, a clamping assembly disposed on the output end of the first electrically controlled telescopic rod, two movable plates disposed on the clamping assembly, a limit plate fixedly disposed on the mounting plate, both movable plates being slidably connected to the outer surface of the limit plate, and clamping plates fixedly disposed on the outer surface of both movable plates. The device is equipped with a structure for fastening, clamping and positioning the bearing body during inner ring assembly, improving the stability of the bearing body during the assembly process, avoiding radial displacement of the bearing due to hydraulic impact or mechanical vibration causing misalignment between the inner ring and the shaft axis, avoiding uneven local interference, avoiding inner ring cracking or shaft bending deformation, improving bearing rotation accuracy and service life, improving the assembly efficiency of the device and the yield rate of the production line, and improving equipment reliability and operational safety.

Description

Technical Field

[0001] This utility model relates to the technical field of precision bearing production equipment, and in particular to a precision bearing inner ring assembly fixture. Background Technology

[0002] Precision bearing inner ring assembly is a process of precisely assembling and pressing the bearing inner ring. It achieves an interference fit through hydraulic or mechanical pressure, ensuring a tight fit between the inner ring and the shaft. This improves assembly accuracy, reduces human error, and ensures the stability of bearing operation. It is widely used in high-precision manufacturing fields such as automobiles and aerospace.

[0003] In the prior art, such as Chinese Publication No. CN212794818U, this utility model relates to the field of tooling and fixture technology, and discloses a special assembly tooling for bearing inner ring and bearing ring. It includes a positioning base for positioning the machine frame, and a positioning sleeve. The positioning sleeve has a bearing inner ring positioning hole, and the lower end of the positioning sleeve has a bearing ring positioning hole. The diameter of the bearing ring positioning hole is larger than the diameter of the bearing inner ring positioning hole. The bearing ring positioning hole and the outer wall of the bearing ring have a clearance fit, and the bearing inner ring positioning hole and the outer wall of the bearing inner ring also have a clearance fit. The upper end of the positioning sleeve also has a pressure rod that has a clearance fit with the bearing inner ring positioning hole, and the lower edge of the pressure rod has a raised ring. This utility model can realize the installation of the bearing ring, bearing inner ring, and spindle in one step, which is convenient to use and improves assembly efficiency.

[0004] While the above-mentioned solution has the advantages mentioned above, its disadvantage lies in the lack of a structure for fastening and clamping the bearing body during the assembly of the inner ring. The stability of the bearing body during the assembly process is affected, and it is prone to radial displacement due to hydraulic impact or mechanical vibration, causing the inner ring and the shaft axis to deviate. This leads to uneven local interference, which can reduce the fit strength or even directly cause the inner ring to crack or the shaft to bend and deform, reducing the bearing's rotational accuracy and service life, reducing the assembly efficiency of the device and the yield rate of the production line, and reducing the reliability and operational safety of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide a precision bearing inner ring assembly fixture. This invention designs a structure for fastening and clamping the bearing body during the assembly of the inner ring, thereby improving the stability of the bearing body during the assembly process, preventing the bearing from being misaligned with the shaft axis due to radial displacement caused by hydraulic impact or mechanical vibration, avoiding uneven local interference, preventing inner ring breakage or shaft bending deformation, improving the bearing rotation accuracy and service life, improving the assembly efficiency of the device and the yield rate of the production line, and improving the reliability and operational safety of the equipment.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a precision bearing inner ring assembly fixture, comprising:

[0007] Mounting plate, wherein a first electrically controlled telescopic rod is fixedly mounted on the outer surface of the mounting plate, and further includes:

[0008] A clamping assembly is provided on the output end of the first electrically controlled telescopic rod. The clamping assembly is provided with two movable plates. A limit plate is fixedly provided on the mounting plate. Both movable plates are slidably connected to the outer surface of the limit plate. A clamping plate is fixedly provided on the outer surface of both movable plates. Two anti-slip plates are fixedly provided on the opposite surfaces of the two clamping plates.

[0009] Adjustment components are mounted on the mounting plate.

[0010] The technical effect of adopting the above-mentioned further solution is that the mounting plate fixes the first electrically controlled telescopic rod, the limiting plate limits and guides the movement of the two moving plates, and the two moving plates move in opposite directions, driving the clamping plates on both sides and multiple anti-slip plates to move in opposite directions.

[0011] Preferably, the clamping assembly includes a toothed plate, which is fixedly connected to the output end of the first electrically controlled telescopic rod. The toothed plate is slidably connected to the mounting plate. Two rotating shafts are rotatably connected to the outer surface of the mounting plate. Gears are fixedly sleeved on the outer surfaces of the two rotating shafts. The two gears mesh with the toothed plate and respectively mesh with the two moving plates.

[0012] The technical effect of adopting the above-mentioned further solution is that the toothed plate moves to one side of the first electrically controlled telescopic rod body, driving the gears on both sides and the two rotating shafts to rotate on the mounting plate. Under the limiting guide of the limiting plate, the rotation of the gears on both sides drives the moving plates on both sides to move in opposite directions, driving the clamping plates on both sides to move in opposite directions until multiple anti-slip plates contact the surface of the bearing body, thereby clamping and fixing the bearing body and improving the stability of the bearing body during the assembly process.

[0013] Preferably, the adjustment component includes an adjustment block, which is fixedly connected to the mounting plate, and a lead screw is threaded onto the inner surface of the adjustment block.

[0014] The technical effect of adopting the above-mentioned further solution is that the rotation of the lead screw drives the adjustment block and the mounting plate to move.

[0015] Preferably, a top frame is rotatably connected to the outer surface of the lead screw, and a guide groove is formed on the inner surface of the top frame, the guide groove being slidably connected to the adjusting block.

[0016] The technical effect of adopting the above-mentioned further solution is that the lead screw rotates inside the top frame, and under the guidance of the guide slide groove, the rotation of the lead screw drives the adjusting block and the mounting plate to move along the guide slide groove in the vertical plane.

[0017] Preferably, a servo motor is fixedly mounted on the outer surface of the top frame, and the output shaft of the servo motor is fixedly connected to one end face of the lead screw.

[0018] The technical effect of adopting the above-mentioned further solution is that when the servo motor is turned on, the output shaft of the servo motor drives the lead screw to rotate inside the top frame.

[0019] Preferably, a frame is fixedly mounted on the outer surface of the top frame, and the frame is fixedly connected to the outer surface of the servo motor.

[0020] The technical effect of adopting the above-mentioned further solution is that the servo motor is fixedly installed on the frame.

[0021] Preferably, a base plate is fixedly disposed on the bottom outer surface of the top frame, and a plurality of support columns are fixedly disposed on the bottom outer surface of the base plate.

[0022] The technical effect of adopting the above-mentioned further solution is that multiple support columns provide stable support for the substrate.

[0023] Preferably, a plurality of second electrically controlled telescopic rods are fixedly disposed on the outer surface of the substrate, and a bearing plate is fixedly disposed on the output end of the plurality of second electrically controlled telescopic rods.

[0024] The technical effect of adopting the above-mentioned further solution is that: opening multiple second electrically controlled telescopic rods, the output ends of multiple second electrically controlled telescopic rods drive the bearing plate to move in the vertical plane, thereby adjusting the height of the bearing plate in the vertical plane.

[0025] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0026] This invention provides a device with a structure that clamps and positions the bearing body during the assembly of the inner ring. This improves the stability of the bearing body during the assembly process, prevents radial displacement of the bearing caused by hydraulic impact or mechanical vibration, avoids misalignment between the inner ring and the shaft axis, prevents uneven local interference, avoids inner ring breakage or shaft bending deformation, improves bearing rotation accuracy and service life, increases the assembly efficiency of the device and the yield rate of the production line, and enhances equipment reliability and operational safety. Attached Figure Description

[0027] Figure 1 A three-dimensional structural diagram of a precision bearing inner ring assembly fixture provided by this utility model;

[0028] Figure 2 A top view of a precision bearing inner ring assembly fixture provided by this utility model;

[0029] Figure 3 A side perspective view of a precision bearing inner ring assembly fixture provided by this utility model;

[0030] Figure 4 This utility model provides a precision bearing inner ring assembly fixture. Figure 1 A magnified three-dimensional structural diagram at point A in the diagram.

[0031] Legend:

[0032] 1. Mounting plate; 2. Limiting plate; 3. Clamping plate; 4. Anti-slip plate; 5. Top frame; 6. Guide groove; 7. Adjusting block; 8. Base plate; 9. Frame; 10. First electrically controlled telescopic rod; 11. Bearing plate; 12. Support column; 13. Second electrically controlled telescopic rod; 14. Servo motor; 15. Lead screw; 16. Gear plate; 17. Rotating shaft; 18. Moving plate; 19. Gear. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0035] Example 1, such as Figures 1 to 4As shown, this utility model provides a precision bearing inner ring assembly fixture, including a mounting plate 1, a first electrically controlled telescopic rod 10 fixedly mounted on the outer surface of the mounting plate 1, a clamping assembly disposed on the output end of the first electrically controlled telescopic rod 10, two movable plates 18 disposed on the clamping assembly, a limit plate 2 fixedly disposed on the mounting plate 1, both movable plates 18 being slidably connected to the outer surface of the limit plate 2, clamping plates 3 fixedly disposed on the outer surface of both movable plates 18, two anti-slip plates 4 fixedly disposed on the opposite surfaces of the two clamping plates 3, and an adjusting assembly disposed on the mounting plate 1. The clamping assembly includes a toothed plate 16, the toothed plate 16 being fixedly connected to the output end of the first electrically controlled telescopic rod 10 and slidably connected to the mounting plate 1, and two anti-slip plates 4 being rotatably connected to the outer surface of the mounting plate 1. Two rotating shafts 17 are fixedly fitted with gears 19 on their outer surfaces. Both gears 19 mesh with gear plates 16 and with two moving plates 18 respectively. When the first electrically controlled telescopic rod 10 is opened, the output end of the first electrically controlled telescopic rod 10 drives the gear plates 16 to move to one side of the body of the first electrically controlled telescopic rod 10, causing the gears 19 on both sides and the two rotating shafts 17 to rotate on the mounting plate 1. Under the limiting and guiding of the limiting plate 2, the rotation of the gears 19 on both sides drives the moving plates 18 on both sides to move in opposite directions, causing the clamping plates 3 on both sides to move in opposite directions until multiple anti-slip plates 4 contact the surface of the bearing body, thereby clamping and fixing the bearing body, improving the stability of the bearing body during the assembly process, and improving the assembly efficiency and equipment reliability of the device.

[0036] Example 2, as Figures 1 to 4 As shown, the adjustment assembly includes an adjustment block 7, which is fixedly connected to the mounting plate 1. A lead screw 15 is threadedly connected to the inner surface of the adjustment block 7, and a top frame 5 is rotatably connected to the outer surface of the lead screw 15. A guide groove 6 is provided on the inner surface of the top frame 5, and the guide groove 6 is slidably connected to the adjustment block 7. A servo motor 14 is fixedly installed on the outer surface of the top frame 5, and the output shaft of the servo motor 14 is fixedly connected to one end face of the lead screw 15. When the servo motor 14 is turned on, the output shaft of the servo motor 14 drives the lead screw 15 to rotate within the top frame 5. Under the limiting guidance of the guide groove 6, the rotation of the lead screw 15 drives the adjustment block 7 and the mounting plate 1 to move along the guide groove 6 in the vertical plane, thereby adjusting the height of the mounting plate 1 and the two side clamping plates 3 in the vertical plane, improving the practicality and flexibility of the device in the process of assembling the bearing body.

[0037] Furthermore, such as Figures 1 to 4 As shown, a frame 9 is fixedly installed on the outer surface of the top frame 5. The frame 9 is fixedly connected to the outer surface of the servo motor 14, and the frame 9 is used to fix the servo motor 14.

[0038] Furthermore, such as Figures 1 to 4 As shown, a base plate 8 is fixedly installed on the bottom outer surface of the top frame 5, and multiple support columns 12 are fixedly installed on the bottom outer surface of the base plate 8, providing stable support for the base plate 8.

[0039] Furthermore, such as Figures 1 to 4 As shown, a plurality of second electrically controlled telescopic rods 13 are fixedly arranged on the outer surface of the substrate 8. A carrier plate 11 is fixedly arranged at the output end of the plurality of second electrically controlled telescopic rods 13. When the plurality of second electrically controlled telescopic rods 13 are opened, the output end of the plurality of second electrically controlled telescopic rods 13 drives the carrier plate 11 to move in the vertical plane, thereby adjusting the height of the carrier plate 11 in the vertical plane.

[0040] Working principle: The bearing body to be assembled on the inner ring is placed on the bearing plate 11. The first electrically controlled telescopic rod 10 is opened. The output end of the first electrically controlled telescopic rod 10 drives the gear plate 16 to move to one side of the first electrically controlled telescopic rod 10 body, driving the gears 19 on both sides and the two rotating shafts 17 to rotate on the mounting plate 1. Under the limiting and guiding of the limiting plate 2, the rotation of the gears 19 on both sides drives the moving plates 18 on both sides to move in opposite directions, driving the clamping plates 3 on both sides to move in opposite directions until the multiple anti-slip plates 4 contact the surface of the bearing body, thus clamping and fixing the bearing body tightly, improving the stability of the bearing body during the assembly process, and improving the bearing body's stability. The device improves assembly efficiency and equipment reliability by opening multiple second electrically controlled telescopic rods 13. The output ends of these rods move the bearing plate 11 vertically, adjusting its height. A servo motor 14 is activated, and its output shaft drives a lead screw 15 to rotate within the top frame 5. Guided by the guide groove 6, the lead screw 15 rotates, causing the adjusting block 7 and mounting plate 1 to move vertically along the guide groove 6, adjusting the height of the mounting plate 1 and the two side clamping plates 3. This enhances the practicality and flexibility of the device during bearing assembly.

[0041] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A precision bearing inner race assembly fixture comprising: Mounting plate (1), wherein a first electrically controlled telescopic rod (10) is fixedly mounted on the outer surface of the mounting plate (1), characterized in that it further includes: A clamping assembly is provided on the output end of the first electrically controlled telescopic rod (10). The clamping assembly is provided with two movable plates (18). A limit plate (2) is fixedly provided on the mounting plate (1). The two movable plates (18) are slidably connected to the outer surface of the limit plate (2). A clamping plate (3) is fixedly provided on the outer surface of the two movable plates (18). Two anti-slip plates (4) are fixedly provided on the opposite surfaces of the two clamping plates (3). Adjustment components are mounted on the mounting plate (1).

2. The precision bearing inner ring assembly fixture according to claim 1, characterized in that: The clamping assembly includes a toothed plate (16), which is fixedly connected to the output end of the first electrically controlled telescopic rod (10). The toothed plate (16) is slidably connected to the mounting plate (1). Two rotating shafts (17) are rotatably connected to the outer surface of the mounting plate (1). Gears (19) are fixedly sleeved on the outer surface of the two rotating shafts (17). The two gears (19) mesh with the toothed plate (16) and mesh with the two moving plates (18) respectively.

3. The precision bearing inner ring assembly fixture according to claim 1, characterized in that: The adjustment assembly includes an adjustment block (7), which is fixedly connected to the mounting plate (1), and a lead screw (15) is threaded onto the inner surface of the adjustment block (7).

4. A precision bearing inner ring assembly fixture according to claim 3, characterized in that: The outer surface of the lead screw (15) is rotatably connected to the top frame (5), and the inner surface of the top frame (5) is provided with a guide groove (6), which is slidably connected to the adjusting block (7).

5. A precision bearing inner ring assembly fixture according to claim 4, characterized in that: A servo motor (14) is fixedly installed on the outer surface of the top frame (5), and the output shaft of the servo motor (14) is fixedly connected to one end face of the lead screw (15).

6. A precision bearing inner ring assembly fixture according to claim 5, characterized in that: A frame (9) is fixedly installed on the outer surface of the top frame (5), and the frame (9) is fixedly connected to the outer surface of the servo motor (14).

7. A precision bearing inner ring assembly fixture according to claim 4, characterized in that: The bottom outer surface of the top frame (5) is fixedly provided with a base plate (8), and the bottom outer surface of the base plate (8) is fixedly provided with multiple support columns (12).

8. A precision bearing inner ring assembly fixture according to claim 7, characterized in that: A plurality of second electrically controlled telescopic rods (13) are fixedly disposed on the outer surface of the substrate (8), and a bearing plate (11) is fixedly disposed at the output end of the plurality of second electrically controlled telescopic rods (13).

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