A bearing installation tool for a small blind hole bearing seat

Abstract

This utility model discloses a bearing installation fixture for a small blind hole bearing housing, relating to the field of mechanical tooling technology. It includes an upper pressure block with a limiting groove on its upper surface; a base correspondingly positioned below the upper pressure block; the limiting groove is clearance-fitted with the bottom surface of the part to be installed with the bearing; pressure plates are positioned on both sides of the limiting groove; a guide rod is coaxially positioned below the blind hole opening within the part, with a limiting rod at its upper end, the outer diameter of the limiting rod being clearance-fitted with the inner diameter of the bearing to be installed; a through hole is provided on the upper pressure block, and a guide post is provided on the base, the outer diameter of the guide post being fit with the inner diameter of the through hole. Beneficial effects: The coaxial design of the guide rod and the blind hole, combined with the axial guidance of the limiting rod, ensures that the bearing always moves along a preset trajectory during the pressing process, completely eliminating the risk of trajectory deviation caused by manual hammering or pneumatic pushing; by inverting the part to be installed with the bearing, the bearing is inserted into the blind hole upright, preventing the bearing from falling out.

Description

Technical Field

[0001] This utility model relates to the field of mechanical tooling technology, and in particular to a bearing installation tooling for a small blind hole bearing housing. Background Technology

[0002] As a crucial component in mechanical transmission, the installation technique of bearings has a profound impact on the performance, reliability, and service life of equipment. The main function of bearings is to support rotating shafts, reduce friction and wear, and ensure the precise rotation of the shaft. Proper installation ensures that bearings can withstand the expected loads during operation, maintain good lubrication and heat dissipation, thereby improving the efficiency and stability of the equipment.

[0003] The main challenge in installing bearings in blind bore bearing housings is how to guide the bearing; and how to prevent the bearing and guide mandrel from falling off during installation, thus ensuring their stable entry into the bearing housing hole. Summary of the Invention

[0004] The main purpose of this utility model is to propose a bearing installation fixture for a small blind hole bearing housing, which aims to solve the technical problems of bearings easily falling off during installation and inconvenient bearing installation guidance.

[0005] To achieve the above objectives, this utility model proposes a bearing installation fixture for a small blind hole bearing housing, including an upper pressure block with a limit groove on its upper part; and a base correspondingly provided below the upper pressure block.

[0006] The limiting groove is clearance-fitted with the bottom surface of the part to be installed with the bearing; pressure plates are provided on both sides of the limiting groove;

[0007] A guide rod is coaxially arranged below the blind hole opening inside the part, and a limit rod is provided at the upper end of the guide rod. The outer diameter of the limit rod is clearance-fitted with the inner diameter of the bearing to be installed.

[0008] The upper pressure block is provided with a through hole, and the base is provided with a guide post, the outer diameter of which matches the inner diameter of the through hole.

[0009] In one embodiment, the base is provided with a mounting hole for mounting a guide rod, and a vent hole is provided through the bottom of the mounting hole for discharging gas from the mounting hole.

[0010] In one embodiment, the base is provided with a through hole corresponding to the pressure block, and the outer diameter of the guide post matches the inner diameter of the through hole.

[0011] In one embodiment, the limiting groove is provided with an opening, and the upper pressing block is provided with a spring sheet on the side of the opening.

[0012] In one embodiment, a positioning rod is provided at the lower end of the upper pressure block. The outer diameter of the positioning rod and the inner diameter of the circular hole on the part are in clearance fit, and the positioning rod and the circular hole are coaxial.

[0013] In one embodiment, a limiting hole is provided on the base, and a nut groove is provided on the bottom plate corresponding to the limiting hole.

[0014] In one embodiment, a limiting step is provided on the guide post, and the distance between the limiting step and the upper pressure block is equal to the distance between the bearing and the blind hole.

[0015] The technical solution of this utility model forms a two-way clamping interface by using a gap fit between the limiting groove and the bottom surface of the part, plus an adjustable pressure plate: the limiting groove provides basic positioning constraints, and the pressure plate achieves multi-angle rotation through screws. When the part is placed in the limiting groove, the pressure plate covers the surface of the part by rotating, forming multi-point contact anti-drop protection, which is especially suitable for the stable fixing of irregular parts or thin-walled structures.

[0016] The coaxial design of the guide rod and the blind hole, combined with the axial guidance of the limiting rod, ensures that the bearing always moves along the preset trajectory during the pressing process, completely eliminating the risk of trajectory deviation caused by manual knocking or pneumatic pushing.

[0017] Through the synergistic effect of guide rods, limit rods and guide columns, a self-centering effect is formed, which enables the bearing press-fitting process to achieve precise matching between blind holes and bearings without repeated manual calibration. This technical solution is particularly suitable for mass production scenarios of high-speed, high-precision transmission components. The modular design enables rapid changeover, significantly improving assembly efficiency and first-pass yield.

[0018] By inverting the part to be installed with the bearing, the bearing is inserted into the blind hole with the bearing facing forward, thus preventing the bearing from falling out. Attached Figure Description

[0019] 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.

[0020] Figure 1 A three-dimensional schematic diagram of the tooling with a manual press installed;

[0021] Figure 2 This is a three-dimensional schematic diagram of the tooling;

[0022] Figure 3 This is a rear view diagram of the tooling with the manual press installed.

[0023] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0024] Explanation of icon numbers:

[0025] 1. Base; 11. Mounting hole; 112. Vent hole; 12. Through hole; 13. Oblong hole; 2. Guide rod; 21. Limiting rod; 3. Guide column; 4. Upper pressure block; 41. Limiting groove; 412. Fixing block; 4121. Pin hole; 4123. Pin; 43. Fixing plate; 5. Fixing rod; 6. Positioning rod; 7. Manual press; 8. Parts; 81. Blind hole; 9. Fastening components; 91. Bolt; 92. Washer; 93. Nut; 10. Limiting hole; 101. Nut groove; 15. Spring plate; 16. Adjustable pressure plate.

[0026] 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

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Example 1: The device includes a base 1 with a mounting hole 11 on the base 1. A guide rod 2 is mounted on the mounting hole 11. A vent hole 112 is provided through the bottom of the mounting hole 11. Because the mounting hole 11 and the guide rod 2 are in a precision fit, the vent hole 112 is needed to release the gas in the mounting hole 11 when the guide rod 2 is installed. This makes it easier for the staff to install the guide rod 2, reduces the installation resistance of the guide rod 2, and avoids the fit deviation caused by air pressure.

[0031] The base 1 has through holes 12 around its perimeter. The through holes 12 are fitted with guide posts 3 with a clearance. The upper end of the guide post 3 is slidably connected to the upper pressure block 4, and its lower end is slidably connected to the base 1, so that the upper pressure block 4 and the base 1 can be aligned. The guide post 3 ensures that the upper pressure block 4 and the base 1 are vertically aligned, reducing assembly errors.

[0032] The upper pressure block 4 is provided with a limiting groove 41, which is clearance-fitted with the part 8 to be installed. Adjustable pressure plates 16 are provided on both sides of the limiting groove 41. The adjustable pressure plates 16 are fixed to the upper pressure block 4 by M4 screws. The adjustable pressure plates 16 limit the part 8 by rotating.

[0033] On the surface opposite to the upper limit groove 41 of part 8, there is a blind hole 81 for the bearing to be installed. A mounting hole 11 is provided below the blind hole 81 on the same axis. A guide rod 2 is provided in the mounting hole 11. A limit rod 21 is provided above the guide rod 2. The outer diameter of the limit rod 21 is clearance-fitted with the inner diameter of the bearing to be installed. The limit rod 21 guides the bearing to be axially positioned to avoid installation misalignment.

[0034] A fixing rod 5 is provided above the upper pressure block 4, and the upper end of the fixing rod 5 is detachably connected to the manual press 7.

[0035] In Example 2, the limiting groove 41 on the lower end face of the upper pressure block 4 is provided with an opening along one side of the upper pressure block 4. A spring sheet 15 is provided on the side of the opening on the upper pressure block 4, which makes it easy for the operator to put the part 8 into the tooling. The spring sheet 15 provides flexible clamping force, which makes it easy to quickly put the part 8 in and prevent it from falling off. Before putting the part 8 in, the spring sheet 15 is rotated to the opening side. After the part 8 is put in, the spring sheet 15 is rotated to the opening position to press against the part 8 and prevent the part 8 from shifting.

[0036] In Example 3, a fixing plate 43 is provided above the upper pressure block 4. A convex through hole is provided in the middle of the fixing plate 43. A fixing rod 5 is provided on the fixing plate 43. The upper end of the fixing rod 5 is connected to the upper part of the manual press 7. The lower end of the fixing rod 5 is provided with a convex step corresponding to the convex through hole. The convex step and the convex through hole cooperate to achieve quick disassembly and assembly, improving maintenance convenience. The upper pressure block 4 and the fixing plate 43 are respectively provided with oblong holes 13 to facilitate the installation of M10 screws. The lower end of the M10 screw is provided with an M10 washer 92 and an M10 nut 93. The connection between the upper pressure block 4 and the fixing block 412 is completed by the fastening component 9.

[0037] Example 4: To achieve more precise positioning of part 8, a positioning rod 6 is provided at the lower end of the upper pressure block 4. The outer diameter of the positioning rod 6 is in clearance fit with the inner diameter of the circular hole on part 8. A chamfer is provided at the end of the positioning rod 6 near part 8 to facilitate the insertion of the positioning rod 6 into the circular hole of part 8 for positioning. The positioning rod 6 is aligned with the direction of the limiting groove 41. The positioning rod 6 is connected to the upper pressure block 4 through a fixing block 412. A pin hole 4121 is provided on the fixing block 412. The pin hole 4121 is perpendicular to the positioning rod 6. The positioning rod 6 and the fixing block 412 are fixed by a pin 4123.

[0038] Example 5: In order to limit the base 1, a limiting hole 10 is opened on the base 1. The base 1 is provided with a nut groove 101 corresponding to the limiting hole 10. After the worker passes the screw through the limiting hole 10, he screws in the nut 93. Then, the nut under the base 1 is sent in along the nut groove 101. After the guide post 3 is installed, the nut is tightened against the base 1 by turning the nut 93.

[0039] Example 6: The base 1 and the guide post 3 are integrally formed, which reduces the installation and positioning time of the guide post 3 and the base 1 and improves the assembly efficiency.

[0040] Example 7: A limiting step is provided on the guide post 3. The limiting step is located in the middle. The distance between the limiting step and the upper pressure block 4 is equal to the distance between the bearing and the blind hole 81. The limiting step restricts the upper pressure block 4 from moving downward to prevent overpressure.

[0041] Work process: First, install the fixing plate 43 onto the fixing rod 5, then connect the fixing rod 5 to the manual press 7, and then connect the upper pressure block 4 and the fixing plate 43 with screws;

[0042] Then place base 1 on the base plate of manual press 7, insert guide rod 2 into mounting hole 11 of base 1, and discharge internal gas through vent hole 112;

[0043] Then insert the four guide pillars 3 into the through hole 12 in the order of fixing plate 43, upper pressure block 4, and base 1;

[0044] Then, push the spring sheet 15 aside, insert the part 8 along the limiting groove 41 until the round hole on the part 8 abuts against the positioning rod 6 or the part 8 abuts against the edge of the limiting groove 41, then push the spring sheet 15 back to abut against the part 8; then move the adjustable pressure plate 16 onto the part 8 to fix the position.

[0045] The bearing to be pressed in is inserted into the limiting rod 21 above the guide rod 2;

[0046] Finally, the workers use the handle of the manual press 7 to move the upper pressure block 4 downwards until the bearing is installed into the blind hole 81 of the part 8;

[0047] Simply repeat the steps above.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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 mounting fixture for a small blind bore bearing housing, characterized in that: It includes an upper pressure block with a limit groove on its upper part; a base is correspondingly provided below the upper pressure block. The limiting groove is clearance-fitted with the bottom surface of the part to be installed with the bearing; pressure plates are provided on both sides of the limiting groove; A guide rod is coaxially arranged below the blind hole opening inside the part, and a limit rod is provided at the upper end of the guide rod. The outer diameter of the limit rod is clearance-fitted with the inner diameter of the bearing to be installed. The upper pressure block is provided with a through hole, and the base is provided with a guide post, the outer diameter of which matches the inner diameter of the through hole.

2. The bearing mounting fixture for a small blind bore bearing housing as described in claim 1, characterized in that: The base is provided with mounting holes for mounting guide rods, and a vent hole is provided below the mounting holes to discharge gas from the mounting holes.

3. The bearing mounting fixture for a small blind bore bearing housing as described in claim 1, characterized in that: The base has a through hole corresponding to the pressure block, and the outer diameter of the guide post matches the inner diameter of the through hole.

4. The bearing mounting fixture for a small blind bore bearing housing as described in claim 1, characterized in that: The limiting groove is provided with an opening, and the upper pressure block is provided with a spring sheet on the side of the opening.

5. The bearing mounting fixture for a small blind bore bearing housing as described in claim 1, characterized in that: The lower end of the upper pressure block is provided with a positioning rod, the outer diameter of the positioning rod and the inner diameter of the circular hole on the part are clearance fit, and the positioning rod and the circular hole are coaxial.

6. The bearing mounting fixture for a small blind bore bearing housing as described in claim 1, characterized in that: The base has a limiting hole, and the bottom plate has a nut groove corresponding to the limiting hole.

7. The bearing mounting fixture for a small blind bore bearing housing as described in claim 1, characterized in that: A limiting step is provided on the guide post, and the distance between the limiting step and the upper pressure block is equal to the distance between the bearing and the blind hole.

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