Bearing adsorption positioning installation mechanism
By using annular sealing gaskets, guide columns, and elastic adjustment devices in the bearing adsorption positioning and installation mechanism, combined with plungers and bearing contact grooves, the sealing and positioning accuracy problems in the bearing assembly installation process are solved, achieving efficient and stable bearing installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JINGSHUNTONG AUTOMATION TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-21
AI Technical Summary
The existing bearing assembly installation process suffers from problems such as insufficient adsorption sealing, positioning accuracy being easily affected by assembly gaps, and inflexible elastic preload adjustment, resulting in low installation quality and efficiency.
The system employs an annular sealing gasket that combines the base and the adsorption chamber, along with a guide column and an elastic adjustment device. A cylindrical helical spring provides elastic pre-pressure, and the T-shaped contact end of the plunger and the bearing contact groove combine to achieve stable negative pressure adsorption and precise positioning.
It improves the sealing and positioning accuracy of bearing installation, enhances the stability and safety of assembly, adapts to the installation requirements of various bearing models, and significantly improves installation efficiency and accuracy.
Smart Images

Figure CN224527004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mechanism for assisting in the transportation and positioning of bearing assemblies, and more particularly to a bearing adsorption positioning and installation mechanism. Background Technology
[0002] In the field of bearing assembly, a combination of adsorption positioning and mechanical preloading is often used to improve the installation and handling efficiency of bearing assemblies. In existing technologies, bearing adsorption typically relies on vacuum negative pressure, while positioning is accomplished through structures such as guide columns and positioning grooves. Some mechanisms also incorporate elastic components to buffer assembly pressure. However, traditional devices generally suffer from insufficient adsorption sealing, positioning accuracy easily affected by assembly gaps, and inflexible elastic preloading adjustment. These issues lead to misalignment, eccentricity, or adsorption failure during bearing assembly installation, affecting assembly quality and efficiency.
[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a bearing adsorption and positioning installation mechanism that has greater industrial application value. Utility Model Content
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a bearing adsorption positioning and installation mechanism.
[0005] This utility model discloses a bearing adsorption positioning and installation mechanism, comprising a base, wherein an adsorption cavity for adsorbing bearings is mounted on the base, the inner wall of the adsorption cavity is provided with air guiding channels, and an air intake connector is installed on one side of the adsorption cavity, the air intake connector being connected to the air guiding channels; an elastic adjustment device is installed inside the adsorption cavity, and a pre-pressure head is connected to the elastic adjustment device; the elastic adjustment device includes a guide column movably connected to the base, an elastic component is sleeved on the guide column, and a pre-pressure head is connected to the end of the guide column; several plungers are installed on the pre-pressure head facing the inner wall of the adsorption cavity; and a pre-set adsorption groove is formed between the lower end of the adsorption cavity and the pre-pressure head.
[0006] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, the base and the adsorption cavity are connected by a number of locking screws.
[0007] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, annular sealing gaskets are distributed on the joint end face of the base and the adsorption cavity.
[0008] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, the elastic component is a cylindrical helical spring, with one end of the cylindrical helical spring contacting the guide post and the other end contacting the preload head.
[0009] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, the base has a guide hole, and the guide post passes through the guide hole; the guide post extends downward with a guide protrusion, and the preload head has a connecting slot at a corresponding position, the guide protrusion is inserted into the connecting slot, so that the preload head and the guide post are combined; the guide post extends upward with a stop block, and the diameter of the stop block is larger than the diameter of the guide hole.
[0010] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, the plunger has T-shaped contact ends distributed outwards.
[0011] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, the preload head is provided with annular guide clearance grooves.
[0012] Furthermore, in the aforementioned bearing adsorption positioning and mounting mechanism, the lower end of the adsorption cavity is provided with bearing contact grooves.
[0013] By means of the above solution, this utility model has at least the following advantages:
[0014] 1. This mechanism effectively prevents air leakage during adsorption by using an annular sealing gasket at the joint end face between the base and the adsorption chamber. This creates a stable negative pressure within the adsorption chamber, ensuring reliable adsorption of the bearing assembly. Simultaneously, the T-shaped contact end of the plunger fits snugly against the inner wall of the bearing assembly, precisely assisting in positioning the radial position of the bearing assembly. This significantly reduces tilting and eccentricity issues during bearing installation, improving positioning accuracy.
[0015] 2. The elastic adjustment device uses a cylindrical helical spring sleeved on the outside of the guide column as the elastic component. Its wire diameter and number of turns can be flexibly adjusted according to the actual required preload, providing a suitable elastic preload for the preload head. At the same time, the guide column is prevented from falling off the base by a stop block, and the annular guide relief groove of the preload head can avoid interference when docking with the bearing assembly, ensuring the stability of the preload process and improving the smoothness and safety of the assembly operation.
[0016] 3. The T-shaped contact end of the plunger can be replaced according to the bearing assembly model. The shape of the bearing contact groove at the lower end of the adsorption cavity can be adapted to the outer circumferential contour of different bearing assemblies. At the same time, the preload parameter of the cylindrical helical spring can be flexibly adjusted. It can adapt to the installation requirements of various bearing models without replacing the entire mechanism, which significantly improves the applicability and reusability of the mechanism.
[0017] 4. The adsorption components, elastic adjustment device and plunger of this mechanism work together to form a negative pressure in the adsorption chamber to adsorb the bearing assembly while the vacuum generator creates the negative pressure. At the same time, the pre-pressure of the elastic component can push the pre-pressure head, so that the plunger can simultaneously complete the radial positioning of the bearing assembly. Furthermore, the cooperation between the pre-pressure head and the guide column can help ensure the concentricity of the bearing assembly and the pre-pressure head, and simultaneously realize multiple functions of adsorption fixation, elastic pre-pressure and radial positioning, effectively improving the overall efficiency and accuracy of bearing installation.
[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0019] Figure 1 This is a half-section structural diagram of the bearing adsorption positioning and mounting mechanism.
[0020] Figure 2 This is a schematic diagram of the bearing adsorption positioning and mounting mechanism.
[0021] The meanings of the labels in the figures are as follows.
[0022] 1. Base 2. Adsorption cavity
[0023] 3. Airflow duct 4. Intake connector
[0024] 5. Preload head; 6. Guide column
[0025] 7. Elastic component 8. Plunger
[0026] 9. Locking screws 10. Circular sealing gaskets
[0027] 11 Guide protrusion 12 Stop block
[0028] 13 Annular guide relief groove 14 Bearing contact groove
[0029] 15 Bearing Assembly Detailed Implementation
[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0031] like Figures 1 to 2The bearing adsorption positioning and mounting mechanism includes a base 1, which is fastened to the adsorption chamber 2 by several locking screws 9. To ensure a seal at the joint end face and prevent air leakage during subsequent adsorption, an annular sealing gasket 10 is embedded at the joint end face. During manufacturing, the sealing gasket can be made of conventional sealing materials such as rubber or silicone to ensure the negative pressure sealing inside the adsorption chamber 2. Furthermore, airflow channels 3 are distributed on the inner wall of the adsorption chamber 2. During manufacturing, the airflow channels 3 can be formed using conventional processes such as milling and etching. After forming, an air intake connector 4 is installed on one side of the airflow channel 3 and connected to it for connection to a vacuum generator. Considering the needs of subsequent adsorption positioning, a bearing contact groove 14 is provided at the lower end of the adsorption chamber 2, the shape of which matches the outer circumferential contour of the bearing assembly 15. This allows for a sufficient shape fit during adsorption. To achieve effective pre-pressure bonding, an elastic adjustment device is installed inside the adsorption chamber 2, and a pre-pressure head 5 is connected to the elastic adjustment device. Specifically, the elastic adjustment device includes a guide post 6 and an elastic component 7. The guide post 6 passes through a guide hole in the base 1 to achieve axial guidance. A guide protrusion 11 extends downward from the guide post 6, and a connecting slot is opened at the corresponding position of the preload head 5. The guide protrusion 11 is inserted into the connecting slot to fix the two axially. The two can be interference-fitted or snap-fitted. Furthermore, a stop block 12 extends upward from the guide post 6, and its diameter is larger than the diameter of the guide hole to prevent the guide post 6 from falling off the base 1.
[0032] In a preferred embodiment of this invention, the elastic component 7 is a cylindrical helical spring, sleeved on the outside of the guide post 6, with one end in contact with the guide post 6 and the other end in contact with the pre-pressure head 5. During implementation, the wire diameter and number of turns of the cylindrical helical spring can be adjusted according to the pre-pressure requirement to provide elastic pre-pressure to the pre-pressure head 5. Simultaneously, several plungers 8 are installed on the side of the pre-pressure head 5 facing the adsorption cavity 2. Furthermore, the pre-pressure head 5 has annular guide clearance grooves 13 to prevent interference during docking with the bearing assembly 15, allowing the bearing assembly 15 to smoothly engage with the pre-set engagement adsorption groove between the adsorption cavity 2 and the pre-pressure head 5.
[0033] Furthermore, the outward-facing end of the plunger 8 is provided with a T-shaped contact end, which can fit against the inner wall of the bearing assembly 15 to assist in positioning the radial position of the bearing during the adsorption process. The size of the T-shaped contact end needs to match the adaptation structure of the bearing's inner wall and can be replaced according to the bearing model to improve versatility.
[0034] The working principle of this utility model is as follows:
[0035] External equipment moves the mechanism closer to the bearing assembly 15. As the mechanism presses down, the bearing assembly 15 enters the adsorption tank under the guidance of the pre-pressure head 5. Then, through the operation of the vacuum generator, the airflow channel 3 creates a negative pressure in the adsorption chamber 2, adsorbing the bearing assembly 15 into the bearing contact groove 14, thus achieving positioning.
[0036] Simultaneously, the pre-pressure of the elastic component 7 pushes the pre-pressure head 5, causing the T-shaped contact end of the plunger 8 to adhere to the inner wall of the bearing assembly 15, achieving radial positioning of the bearing. At the same time, the annular guide clearance groove 13 provides clearance space for the axial movement of the pre-pressure head 5, avoiding structural interference. This ensures that the bearing assembly 15, after final adsorption and positioning, is concentrically distributed with the pre-pressure head 5, and that the horizontal plane of the bearing assembly 15 remains straight.
[0037] Furthermore, the directions or positional relationships described in this utility model are based on the directions or positional relationships shown in the accompanying drawings. They are only for the purpose of facilitating the description of this utility model and simplifying the description, and are not intended to indicate or imply that the device or structure referred to must have a specific orientation, or to operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A bearing adsorption positioning and mounting mechanism, comprising a base, characterized in that, The base faces an adsorption cavity for adsorbing bearings. The inner wall of the adsorption cavity has airflow channels. An air intake connector is installed on one side of the adsorption cavity, and the air intake connector is connected to the airflow channels. An elastic adjustment device is installed inside the adsorption cavity, and a pre-pressure head is connected to the elastic adjustment device. The elastic adjustment device includes a guide column movably connected to the base, and an elastic component is sleeved on the guide column. A pre-pressure head is connected to the end of the guide column. Several plungers are installed on the inner wall of the adsorption cavity facing the pre-pressure head. A pre-set adsorption groove is formed between the lower end of the adsorption cavity and the pre-pressure head.
2. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The base and the adsorption cavity are connected by several locking screws.
3. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The base and the adsorption cavity are joined by annular sealing gaskets.
4. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The elastic component is a cylindrical helical spring, with one end of the cylindrical helical spring in contact with the guide post and the other end in contact with the preload head.
5. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The base has a guide hole, and the guide post passes through the guide hole; the guide post extends downward to a guide protrusion, and the preload head has a connecting slot at the corresponding position, and the guide protrusion is inserted into the connecting slot to connect the preload head with the guide post; the guide post extends upward to a stop block, and the diameter of the stop block is larger than the diameter of the guide hole.
6. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The plunger has T-shaped contact ends distributed outwards.
7. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The preload head is provided with annular guide relief grooves.
8. The bearing adsorption positioning and mounting mechanism according to claim 1, characterized in that: The lower end of the adsorption cavity is provided with bearing contact grooves.