A bearing flanging anti-overpressure tool

Abstract

The utility model discloses a kind of bearing flanging anti-overvoltage tool, it is related to bearing installation technical field, and it includes upper pressing block, the upper pressing block is coaxially provided with guide rod below, the upper pressing block is correspondingly provided with base below, non-through guide hole is set on the guide rod of base, through hole is set below the guide hole, the edge opening groove of connecting through hole is set on the lower end surface of base.Affinity effect: the rigid abutment of guide rod end and guide hole bottom is used to form hard limit mechanism, effectively prevent the deformation of flanging caused by overpressure;Through hole and recess are set in base, so that the compressed air in guide hole can escape along through hole through recess in pressing process, completely eliminate the press-fit deviation problem caused by gas blocking effect, finally reach the technical effect of improving bearing installation quality, preventing rotation tight and dead.

Description

Technical Field

[0001] This utility model relates to the field of bearing installation technology, and in particular to a bearing flange anti-overpressure tooling. Background Technology

[0002] A bearing consists of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. It can withstand large loads and, depending on its structure and type, can withstand radial loads, axial loads, or combined radial and axial loads. It has a large swing angle and good compliance, accommodating angular deviations and relative movements between two shafts, allowing the shaft to swing and tilt within a certain range. It is widely used in aerospace, automotive, engineering machinery, metallurgical equipment, robotics, and other fields. Therefore, the installation quality of bearings is crucial. For bearings with flanged outer rings, in addition to assembling them into the bearing mounting base as required, flange clamping is also involved. In existing installation methods, after pressing in, external force is applied to the upper pressure block and the base. The upper pressure block and the base compress the flange groove on the bearing outer ring, deforming and flange the bearing outer ring, which then clamps onto the chamfer of the bearing housing. The upper pressure block, bearing, and base are guided by a guide mandrel to ensure that the bearing installation tool is aligned with the bearing's axial direction.

[0003] However, during the installation of the bearing flange, the bearing may experience issues such as poor inner ring rotation, tightness, or even seizing. This is because when subjected to excessive external force in the axial direction, the V-shaped annular tip on the upper pressure block and the base will excessively compress the outer ring flange groove of the bearing, causing the inner side of the flange groove to be squeezed towards the center. The resulting structural deformation compresses the inner ring of the bearing. At the same time, the guide shaft of the upper pressure block cooperates with the base, causing the air in the cavity to be unable to escape in time during the downward movement of the upper pressure block. This results in the upper pressure block and the base being pushed back or radially offset, causing the bearing flange to shift. Consequently, this leads to poor rotation, tightness, or even seizing. Summary of the Invention

[0004] The main purpose of this utility model is to propose a bearing flange anti-overpressure tooling, which aims to solve the problem of excessive external pressure during the installation of bearing flanges.

[0005] To achieve the above objectives, this utility model proposes a bearing flange anti-overpressure tooling, including an upper pressure block, a guide rod coaxially arranged below the upper pressure block, a base correspondingly arranged below the upper pressure block, a non-penetrating guide hole arranged on the base corresponding to the guide rod, a through hole arranged below the guide hole, and an edge opening groove connecting the through hole arranged on the lower end face of the base.

[0006] In one embodiment, the lower end face of the upper pressure block is coaxially fixed with an upper V-shaped annular tip, and the upper end face of the base is coaxially fixed with a lower V-shaped annular tip. The upper pressure block and the base are used to place the bearing to be flipped and the bearing mounting seat. The upper and lower ends of the bearing are coaxially provided with V-shaped annular grooves.

[0007] In one embodiment, the upper V-shaped annular tip and the lower V-shaped annular tip have the same angle, which is between 70° and 80°. The inner ring of the bearing mounting seat has chamfers at both ends, and the chamfer angle is set to 40°-50°.

[0008] In one embodiment, at least one first vent hole is vertically disposed through the upper pressure block. The first vent hole is located between the tip of the upper V-shaped ring and the guide rod. The upper end face of the upper pressure block is provided with a guide groove with an edge opening. The guide groove is connected to the first vent hole. At least one second vent hole is vertically disposed through the base. The second vent hole is located between the tip of the lower V-shaped ring and the guide hole. The second vent hole is connected to a groove on the base.

[0009] In one embodiment, the outer diameter of the guide rod is clearance-fitted with the inner diameter of the bearing, with a clearance distance between 0.001 mm and 0.05 mm, and the outer diameter of the guide rod is clearance-fitted with the inner diameter of the guide hole, with a clearance distance between 0.001 mm and 0.05 mm.

[0010] In one embodiment, the upper end of the upper pressure block is a plane, and the lower end of the base is a plane.

[0011] In one embodiment, the cross-sectional shape of the guide groove is one of a semicircle, an arc, a segmental circle, or a rectangle, and the cross-sectional shape of the groove is one of a semicircle, an arc, a segmental circle, or a rectangle.

[0012] In one embodiment, when the guide rod abuts against the guide hole, the distance between the upper pressure block and the base is greater than the height of the bearing.

[0013] The technical solution of this utility model utilizes the rigid contact between the end of the guide rod and the bottom of the guide hole to form a hard limiting mechanism, which effectively prevents flange deformation caused by overpressure; a through hole and groove are set in the base so that the compressed air in the guide hole can escape in time along the through hole and groove during the press-fitting process, completely eliminating the press-fitting offset problem caused by air resistance effect, and finally achieving the technical effect of improving the bearing installation quality and preventing rotational stiffness and seizure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram of a bearing flange anti-overpressure tooling provided by this utility model;

[0016] Figure 2 This is a first main view structural schematic diagram of a bearing flange anti-overpressure tooling provided by the present invention;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 4 This utility model provides a second main view structural schematic diagram of a bearing flange anti-overpressure tooling.

[0019] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction;

[0020] Figure 6 This is a three-dimensional structural diagram of the bearing and bearing mounting base;

[0021] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure along the CC direction;

[0022] Explanation of icon numbers:

[0023] 1. Upper pressure block; 11. Upper V-shaped annular tip; 12. Guide rod; 123. First vent hole; 124. Guide groove; 2. Base; 21. Lower V-shaped annular tip; 22. Guide hole; 23. Through hole; 24. Groove; 25. Second vent hole; 3. Bearing; 31. V-shaped annular groove; 4. Bearing mounting seat; 41. Chamfer.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if any directional indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of this utility model, such directional indication is only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Moreover, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Furthermore, the use of "and / or" or "and / or" throughout the text includes three parallel options; for example, "A and / or B" includes option A, option B, or options where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] like Figure 1 and Figure 2As shown in the figure, this embodiment provides a tooling for bearing flange overpressure protection, including an upper pressure block 1 and a base 2.

[0029] A guide rod 12 is coaxially fixed to the lower end face of the upper pressure block 1, which cooperates with the guide hole 22 of the base 2. The size of the guide rod 12 is clearance-fitted with the inner diameter of the bearing 3, with a clearance distance between 0.001 mm and 0.05 mm. The outer diameter of the guide rod 12 is clearance-fitted with the inner diameter of the guide hole 22, with a clearance distance between 0.001 mm and 0.05 mm. A through hole 23 is vertically provided below the guide hole 22, which penetrates the guide hole 22. The inner diameter of the through hole 23 is smaller than the inner diameter of the guide hole 22, and the other end of the through hole 23 is connected to the groove 24.

[0030] During the flangeing process of bearing 3, the lower pressure block moves relative to the base 2. During this movement, the guide rod 12 moves downward along the guide hole 22, and air is continuously discharged through the through hole 23 along the groove 24 to prevent gas stagnation and deformation of bearing 3. The guide rod 12 of the upper pressure block 1 and the guide hole 22 of the base 2 adopt a double clearance fit (outer diameter clearance 0.001-0.05mm), which ensures the axial alignment of bearing 3 during press-fitting and forms a hard limit through the rigid contact between the end of the guide rod 12 and the bottom of the guide hole 22. When the flange deformation reaches the preset value (the guide rod 12 is fully inserted into the guide hole 22), the tooling automatically stops applying pressure to prevent deformation of the inner ring of bearing 3 due to overpressure.

[0031] When the guide rod 12 is pressed against the guide hole 22, the tooling completes the flanging of the bearing 3. The guide rod 12 is limited by the guide hole 22 to avoid the upper pressure block 1 from over-pressuring the bearing 3 and damaging the flanging quality of the bearing 3.

[0032] The lower end face of the upper pressure block 1 is coaxially fixed with an upper V-shaped annular tip 11, the upper end face of the base 2 is coaxially fixed with a lower V-shaped annular tip 21, and the upper and lower ends of the bearing 3 are coaxially provided with V-shaped annular grooves 31.

[0033] In the second embodiment, the upper end of the upper pressure block 1 is a flat surface, and the lower end of the base 2 is a flat surface, which is used for the press to apply pressure and facilitates the placement and positioning of the tooling.

[0034] In Example 3, the upper V-shaped annular tip 11 and the lower V-shaped annular tip 21 have the same angle, which ranges from 70 to 80°. The angle used in this tooling is 75°.

[0035] The inner ring of the bearing mounting base 4 has chamfers 41 at both the upper and lower ends. The chamfer angle 41 is set to 40-50°, and the angle used in this bearing mounting base is 45°.

[0036] In Example 4, the upper V-shaped annular tip 11 of the upper pressure block 1 and the lower V-shaped annular tip 21 of the base 2 have the same structure. The positions of the upper pressure block 1 and the base 2 can be interchanged during the flanging process without affecting the flanging process. There is no need to set up an anti-reverse structure, which simplifies the assembly and adjustment process, improves work efficiency, and reduces the teaching time for beginners.

[0037] In embodiment 5, the upper pressure block 1 is provided with two first vent holes 123 axially. The first vent holes 123 are all located between the upper V-shaped annular tip 11 and the guide rod 12. The upper end face of the upper pressure block 1 is provided with a guide groove 124, which connects to the first vent holes 123.

[0038] Two second vent holes 25 are provided on the base 2. The second vent holes 25 are located between the lower V-shaped annular tip 21 and the guide hole 22. The second vent holes 25 are connected to the groove 24 on the base 2.

[0039] Through the cooperation of the first vent hole 123 and the second vent hole 25, air can be directly discharged when the space between the upper pressure block 1 and the bearing 3 is compressed during the flanged process of the bearing 3. Similarly, air can be directly discharged when the space between the base 2 and the bearing 3 is compressed, reducing the impact on flanged quality caused by space compression and preventing deformation of the bearing 3 due to gas stagnation. The upper pressure block 1 is provided with two first vent holes 123, and the base 2 is provided with two second vent holes 25, forming a through-flow airflow channel. During the flanged process, the air in the compressed area between the upper pressure block 1 and the bearing 3 is discharged through the first vent hole 123 → guide groove 124 → to the outside; the compressed air between the base 2 and the bearing 3 is discharged through the second vent hole 25 → groove 24 → to the outside, eliminating pressure misalignment caused by air resistance.

[0040] Working principle: The bearing 3 and the bearing mounting seat 4 are placed on the lower V-shaped annular tip 21 of the base 2, and the upper pressure block 1 is axially aligned with the guide hole 22 of the base 2 through the guide rod 12;

[0041] The press drives the upper pressure block 1 to continue moving downwards, and the upper / lower V-shaped annular tips 21 begin to squeeze the outer ring V-shaped annular groove 31 of the bearing 3. Compressed air is discharged through the first vent hole 123 → guide groove 124 → outside of the upper pressure block 1, and the second vent hole 25 → groove 24 → outside of the base 2. Compressed air is discharged through the guide hole 22 → through hole 23 → groove 24 → outside of the base 2.

[0042] The guide rod 12 is fully inserted into the bottom of the guide hole 22 to form rigid contact, at which point the flange height reaches the preset value;

[0043] The press automatically unloads, completing the flanging process.

[0044] It should be understood that the terms "one embodiment" or "one example" throughout the specification mean that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in one example" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Those skilled in the art should also recognize that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0045] In various embodiments of this utility model, it should be understood that the sequence number of each process does not necessarily imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of this utility model embodiment.

[0046] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, or they may sometimes be executed in reverse order, depending on the functions involved. It is particularly important to note that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A bearing flange anti-overpressure tooling, characterized in that: The upper pressure block (1) is provided with a guide rod (12) coaxially below the upper pressure block (1). A base (2) is provided below the upper pressure block (1). A non-through guide hole (22) is provided on the base (2) corresponding to the guide rod (12). A through hole (23) is provided below the guide hole (22). An edge opening groove (24) connecting the through hole (23) is provided on the lower end face of the base (2).

2. The bearing flanging anti-overpressure tooling as described in claim 1, characterized in that: The upper pressure block (1) has an upper V-shaped annular tip (11) coaxially fixed on its lower end face, and the base (2) has a lower V-shaped annular tip (21) coaxially fixed on its upper end face. The upper pressure block (1) and the base (2) are used to place the bearing (3) to be turned over and the bearing mounting seat (4). The upper and lower ends of the bearing (3) are coaxially provided with V-shaped annular grooves (31).

3. The bearing flanging anti-overpressure tooling as described in claim 2, characterized in that: The upper V-shaped annular tip (11) and the lower V-shaped annular tip (21) have the same angle, which is between 70° and 80°. The inner ring of the bearing mounting base (4) is provided with chamfers (41) at both ends, and the chamfer (41) angle is set to 40°-50°.

4. The bearing flanging anti-overpressure tooling as described in claim 1, characterized in that: At least one first vent hole (123) is vertically provided in the upper pressure block (1). The first vent hole (123) is located between the upper V-shaped annular tip (11) and the guide rod (12). The upper end face of the upper pressure block (1) is provided with a guide groove (124) with an edge opening. The guide groove (124) is connected to the first vent hole (123). At least one second vent hole (25) is vertically provided in the base (2). The second vent hole (25) is located between the lower V-shaped annular tip (21) and the guide hole (22). The second vent hole (25) is connected to the groove (24) on the base (2).

5. The bearing flanging anti-overpressure tooling as described in claim 2, characterized in that: The outer diameter of the guide rod (12) is clearance-fitted with the inner diameter of the bearing (3), with a clearance distance between 0.001 mm and 0.05 mm. The outer diameter of the guide rod (12) is clearance-fitted with the inner diameter of the guide hole (22), with a clearance distance between 0.001 mm and 0.05 mm.

6. The bearing flanging anti-overpressure tooling as described in claim 1, characterized in that: The upper end of the upper pressure block (1) is a plane, and the lower end of the base (2) is a plane.

7. The bearing flanging anti-overpressure tooling as described in claim 4, characterized in that: The cross-sectional shape of the guide groove (124) is one of a semicircle, an arc, a chamfer, or a rectangle, and the cross-sectional shape of the groove (24) is one of a semicircle, an arc, a chamfer, or a rectangle.

8. The bearing flanging anti-overpressure tooling as described in claim 2, characterized in that: When the guide rod (12) abuts against the guide hole (22), the gap between the upper pressure block (1) and the base (2) is greater than the height of the bearing (3).

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