Press fitting equipment for bearing machining

By spraying lubricating oil into the bearing press-fitting equipment and optimizing the support structure, the problem of high-temperature wear during bearing press-fitting was solved, achieving stable bearing installation and efficient cooling, and improving the operating performance and cost-effectiveness of the equipment.

CN223544558UActive Publication Date: 2025-11-14HANGZHOU ZHANZHAN BEARING CO LTD
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Patent Information

Application Number
CN202422974902.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-11-14
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

In existing technologies, direct metal-to-metal contact during bearing press-fitting can lead to excessively high temperatures, potentially causing discoloration, scratches, and peeling. Furthermore, a lack of lubrication can accelerate wear.

Method used

A press-fitting device for bearing processing was designed. It uses a nozzle to spray lubricating oil to form an oil film on the bearing surface, reducing metal-to-metal contact friction. The support plate and slide groove structure improve the stability and cooling effect of bearing press-fitting.

Benefits of technology

It effectively reduces friction and wear, lowers bearing temperature, improves installation accuracy and equipment operating performance, and saves on lubricating oil costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses press-fitting equipment for bearing machining, which comprises a box body, a positioning groove is formed in the upper surface of the box body, a through hole is formed in the middle of the positioning groove, a V-shaped clamping plate is slidably mounted in the positioning groove, a vertical plate is fixedly mounted on the lower surface of the clamping plate, and a transverse rod is fixedly mounted on the opposite surface of the vertical plate. And a fixing groove is fixedly formed in an inner cavity of the box body, a spray head is slidably installed in the fixing groove, inclined plates are fixedly installed on the two sides of the spray head, and a collecting groove is formed in the outer side of the through hole. A vertical plate is driven by movement of a clamping plate, then a transverse rod is driven to move, the transverse rod slides on the inclined face of an inclined plate, the inclined plate moves upwards, a spray head is driven to slide upwards and enter the bearing through a through hole, lubricating oil is sprayed to the surface of the bearing, a shaft sleeve is conveniently installed in the bearing, direct contact of metal is prevented, and therefore friction and abrasion are reduced; and meanwhile, the cooling effect can be achieved, the mounting effect is improved, redundant lubricating oil can be collected through a collecting groove, and cost is saved.
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Description

Technical Field

[0001] This utility model belongs to the field of bearing processing technology, and in particular relates to a press-fitting device for bearing processing. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical parts and reduce the coefficient of friction during their movement. The simplest rotary bearing is the bushing bearing, which is just a bushing sandwiched between a wheel and an axle. This design was later replaced by rolling bearings, which use many cylindrical rollers instead of the original bushing. Each rolling element is like an individual wheel. During the bearing manufacturing process, a press-fitting device is needed to press the bushing into the bearing.

[0003] In the prior art, Chinese utility model patent with patent number CN217571680U discloses a bearing press-fitting device, including a positioning sleeve that cooperates with the bearing and a pressure rod assembly that presses the bearing into the housing. The bearing is sleeved in the positioning sleeve, and the pressure rod assembly extends coaxially into the positioning sleeve and abuts against the end face of the bearing. The positioning sleeve is placed on the housing and floats in contact with the housing. The bearing is pressed into the housing as the pressure rod assembly is pressed axially downward.

[0004] In the aforementioned prior art, although the floating contact between the positioning sleeve and the housing allows for leveling of the housing, fine-tuning and correcting any misalignment to ensure coaxial alignment with the positioning sleeve, thus guaranteeing the bearing's coaxial alignment with the housing during press-fitting and facilitating smooth press-fitting of the bearing, reducing the damage rate of both the housing and bearing during press-fitting, the direct metal-to-metal contact during bearing press-fitting can lead to excessively high bearing temperatures, potentially causing discoloration, scratches, and peeling. Furthermore, insufficient lubrication can accelerate bearing wear. Utility Model Content

[0005] This invention addresses the technical problem that direct metal-to-metal contact during bearing press-fitting leads to excessively high bearing temperatures, potentially causing discoloration, scratches, and peeling, while lack of lubrication accelerates bearing wear. It provides a press-fitting device for bearing processing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a press-fitting device for bearing processing, comprising a housing, a positioning groove being provided on the upper surface of the housing, a through hole being provided in the middle of the positioning groove, and two symmetrical first sliding grooves being provided inside the positioning groove, wherein a V-shaped clamping plate is slidably installed inside the first sliding groove;

[0007] A vertical plate is fixedly installed on the lower surface of the clamping plate, and a horizontal bar is fixedly installed on the opposite sides of the two vertical plates.

[0008] A fixing groove is fixedly installed in the inner cavity of the box, and a nozzle is slidably installed inside the fixing groove. Inclined plates are fixedly installed on both sides of the nozzle.

[0009] A collection groove is provided on the outside of the through hole.

[0010] Optionally, the bottom of the nozzle is connected to a conduit, and a solenoid valve is provided in the middle of the conduit.

[0011] Optionally, a fixing plate is fixedly installed on the upper surface of the housing, and a first cylinder for driving the clamping plate is fixedly installed on the side of the fixing plate.

[0012] Optionally, a plurality of columns are fixedly installed on the upper surface of the housing, a top plate is fixedly installed on the top of the plurality of columns, a second cylinder is fixedly installed on the upper surface of the top plate, a support plate is fixedly installed on the output end of the second cylinder, and a press-fitting assembly is fixedly installed on the lower surface of the support plate.

[0013] Optionally, a second groove is provided on the opposite side of the column, and the support plate slides inside the second groove.

[0014] Optionally, the press-fit assembly includes a fixed base and a mounting base. The positioning column is fixedly installed inside the fixed base, and the positioning hole is opened inside the mounting base. Both the fixed base and the mounting base have fixing holes for assembly. The press-fit head is fixedly installed on the lower surface of the mounting base.

[0015] In summary, compared with the prior art, the bearing processing press-fitting equipment provided by this utility model has the following beneficial effects:

[0016] 1. In this utility model, the clamping plate moves in the center, thereby driving the vertical plate connected to it to move in the center within the first sliding groove, which in turn drives the horizontal bar to move. The horizontal bar slides on the inclined surface of the inclined plate, causing the inclined plate to move upward. This causes the nozzle to slide upward inside the fixed groove and enter the bearing through the through hole. Subsequently, the solenoid valve opens, spraying lubricating oil onto the surface of the bearing, facilitating the installation of the bushing in the bearing. The lubricating oil can form an oil film between the moving and stationary parts of the bearing, preventing direct metal-to-metal contact, thereby reducing friction and wear. At the same time, it can remove some of the heat generated during bearing operation, playing a cooling role and improving the installation effect. The collection groove can collect excess lubricating oil, saving costs and making it practical.

[0017] 2. In this utility model, the second cylinder drives the support plate to slide downward inside the second slide groove, thereby driving the pressing head to move downward and pressing the bushing into the bearing. By using the support plate and the second slide groove, the stability of the bearing is improved during the pressing process, which can effectively reduce the additional friction and wear caused by instability and improve the overall operating performance of the equipment.

[0018] 3. In this utility model, the assembly between the pressing head and the support plate facilitates the replacement of different pressing heads, thereby enabling it to be used with bushings of different sizes, which is practical. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the pressing head structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the fixing base structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the box body of this utility model;

[0023] Figure 5 This is a top view of the box structure of this utility model;

[0024] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0025] In the diagram: 1. Housing; 2. Legs; 3. Positioning groove; 4. Bearing; 5. Fixing plate; 6. First cylinder; 7. Clamping plate; 8. Through hole; 9. Collection groove; 10. First slide groove; 11. Vertical plate; 12. Horizontal bar; 13. Fixing groove; 14. Nozzle; 15. Inclined plate; 16. Conduit; 17. Solenoid valve; 18. Column; 19. Top plate; 20. Second cylinder; 21. Support plate; 22. Second slide groove; 23. Fixing seat; 24. Positioning column; 25. Mounting seat; 26. Positioning hole; 27. Fixing hole; 28. Press-fit head. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] refer to Figure 1 A press-fitting device for bearing processing includes a housing 1 and a bearing 4. The lower surface of the housing 1 is fixedly mounted with a support leg 2, and the upper surface of the housing 1 is provided with a positioning groove 3, and the bearing 4 is placed in the middle of the positioning groove 3.

[0028] refer to Figure 1 and Figure 5Symmetrical fixing plates 5 are fixedly installed on the upper surface of the housing 1. A first cylinder 6 is fixedly installed on the opposite side of the fixing plates 5. A V-shaped clamping plate 7 is fixedly installed at the output end of the first cylinder 6. The design of the V-shaped clamping plate 7 can firmly clamp the bearing 4, ensuring that it will not loosen or fall off during operation, providing stable support. At the same time, the V-shaped clamping plate 7 can avoid damage to the bearing 4 through reasonable clamping force and contact area, protecting the integrity and performance of the bearing 4. Moreover, the clamping plate 7 slides inside the positioning groove 3, providing good sliding stability.

[0029] Furthermore, during use, the bearing 4 is placed on the surface of the positioning groove 3, and the first cylinder 6 is controlled to push the two clamping plates 7 to move in the center, thereby pushing the bearing 4 to move, and thus positioning the bearing 4 in the center of the positioning groove 3. Centering and fixing can ensure that the bearing 4 is accurately positioned during the press-fitting process, avoid skewing, and thus improve the press-fitting accuracy.

[0030] refer to Figure 4 and Figure 5 The surface of the positioning groove 3 is provided with a symmetrical through first sliding groove 10. A vertical plate 11 is slidably installed inside the first sliding groove 10. The top of the vertical plate 11 is fixed to the lower surface of the clamping plate 7, and a crossbar 12 is fixedly installed on one side of the bottom end of the vertical plate 11. A fixing groove 13 is fixedly installed in the inner cavity of the box body 1. A nozzle 14 is slidably installed inside the fixing groove 13. Inclined plates 15 that cooperate with the crossbar 12 are fixedly installed on both sides of the nozzle 14. The bottom end of the nozzle 14 is connected to a conduit 16. The conduit 16 is slidably engaged with the lower surface of the box body 1. A solenoid valve 17 is provided in the middle of the conduit 16. The end of the conduit 16 is externally connected to a lubricating oil conveying device. This lubricating oil conveying device is prior art and will not be disclosed in detail here. A through hole 8 that cooperates with the nozzle 14 is provided in the middle of the positioning groove 3.

[0031] Furthermore, during the positioning of the bearing 4, the clamping plate 7 moves to the center, thereby driving the vertical plate 11 connected to it to also move to the center within the first sliding groove 10, which in turn drives the horizontal bar 12 to move, causing the horizontal bar 12 to slide on the inclined surface of the inclined plate 15, causing the inclined plate 15 to move upward, thereby driving the nozzle 14 to slide upward inside the fixed groove 13 and enter the interior of the bearing 4 through the through hole 8. Subsequently, the solenoid valve 17 opens, spraying lubricating oil onto the surface of the bearing 4, facilitating the installation of the bushing in the bearing 4. The lubricating oil can form an oil film between the moving and stationary parts of the bearing 4, preventing direct metal-to-metal contact, thereby reducing friction and wear. At the same time, it can carry away some of the heat generated by the bearing 4 during operation, playing a cooling role and improving the installation effect. After the press-fitting is completed, the nozzle 14 can be reset with the clamping plate 7.

[0032] refer to Figure 6A collection groove 9 is provided on the outside of the through hole 8. The inner surface of the bearing 4 is located directly above the collection groove 9, and the outer side of the bearing 4 is supported on the upper surface of the positioning groove 3, so that the collection groove 9 can collect excess lubricating oil, saving costs and making it practical.

[0033] refer to Figure 1 A column 18 is fixedly installed on the upper surface of the housing 1. A top plate 19 is fixedly installed on the top of the column 18. A second cylinder 20 is fixedly installed on the upper surface of the top plate 19. The output end of the second cylinder 20 passes through the top plate 19 and is slidably engaged. A support plate 21 is fixedly installed at the bottom. A second sliding groove 22 is opened on the opposite side of the column 18. The support plate 21 slides inside the second sliding groove 22.

[0034] refer to Figures 1-3 A press-fitting assembly is fixedly installed on the lower surface of the support plate 21. The press-fitting assembly includes a fixed seat 23 and a mounting seat 25. A positioning post 24 is fixedly installed inside the fixed seat 23. The mounting seat 25 has a positioning hole 26 corresponding to the positioning post 24 inside, and the mounting seat 25 is inserted into the inside of the fixed seat 23. Both the fixed seat 23 and the mounting seat 25 have fixing holes 27 inside, which are used to assemble the fixed seat 23 and the mounting seat 25 together by fixing screws. A press-fitting head 28 for use with the bearing 4 is fixedly installed on the lower surface of the mounting seat 25. The press-fitting head 28 is assembled with the support plate 21, which facilitates the replacement of different press-fitting heads 28, so that it can be used with bushings of different sizes, which is practical.

[0035] Furthermore, during use, the second cylinder 20 drives the support plate 21 to slide downward inside the second slide groove 22, thereby driving the pressing head 28 to move downward and press the bushing into the bearing 4. Through the use of the support plate 21 and the second slide groove 22, the bearing 4 is made more stable during the pressing process, which can effectively reduce the additional friction and wear caused by instability and improve the overall operating performance of the equipment.

[0036] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0038] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A press-fitting device for bearing processing, characterized in that, Includes a housing (1), the upper surface of the housing (1) is provided with a positioning groove (3), the middle part of the positioning groove (3) is provided with a through hole (8), and two symmetrical first sliding grooves (10) are provided inside the positioning groove (3), and a V-shaped clamp (7) is slidably installed inside the first sliding groove (10). A vertical plate (11) is fixedly installed on the lower surface of the clamp (7), and a horizontal bar (12) is fixedly installed on the opposite surfaces of the two vertical plates (11); A fixing groove (13) is fixedly installed in the inner cavity of the box (1), and a nozzle (14) is slidably installed inside the fixing groove (13). Inclined plates (15) are fixedly installed on both sides of the nozzle. A collection groove (9) is provided on the outside of the through hole (8).

2. The bearing processing press-fitting equipment according to claim 1, characterized in that, The bottom of the nozzle (14) is connected to a conduit (16), and a solenoid valve (17) is provided in the middle of the conduit (16).

3. The bearing processing press-fitting equipment according to claim 1, characterized in that, A fixing plate (5) is fixedly installed on the upper surface of the housing (1), and a first cylinder (6) of the drive clamp (7) is fixedly installed on the side of the fixing plate (5).

4. The bearing processing press-fitting equipment according to claim 3, characterized in that, Multiple columns (18) are fixedly installed on the upper surface of the housing (1), and a top plate (19) is fixedly installed on the top of the multiple columns (18). A second cylinder (20) is fixedly installed on the upper surface of the top plate (19), and a support plate (21) is fixedly installed on the output end of the second cylinder (20). A press-fitting assembly is fixedly installed on the lower surface of the support plate (21).

5. The bearing processing press-fitting equipment according to claim 4, characterized in that, The opposing side of the column (18) is provided with a second groove (22), and the support plate (21) slides inside the second groove (22).

6. The bearing processing press-fitting equipment according to claim 1, characterized in that, The press-fit assembly includes a fixed base (23) and a mounting base (25). The positioning column (24) is fixedly installed inside the fixed base (23). The mounting base (25) has a positioning hole (26) inside. Both the fixed base (23) and the mounting base (25) have fixing holes (27) for assembly inside. The lower surface of the mounting base (25) is fixedly installed with a press-fit head (28).

Citation Information

Patent Citations

  • Bearing press fitting device

    CN217571680U