Full-automatic grease injection gland tool for precision bearing

By introducing a cylinder and limit pin system into the fully automatic grease injection cap tooling for precision bearings, the position of the solenoid valve and the valve opening are automatically adjusted, solving the problem that existing tooling cannot be automatically adjusted, and achieving accuracy and consistency in grease injection.

CN224135656UActive Publication Date: 2026-04-17FUAN XURI BEARING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUAN XURI BEARING CO LTD
Filing Date
2025-06-06
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing fully automatic grease injection cap tooling for precision bearings lacks an automated adjustment system, making it impossible to automatically adjust the position of the solenoid valve according to different bearing models. Furthermore, it relies on manual experience to control the amount of grease injected, resulting in inconsistency and poor accuracy in grease injection.

Method used

A system comprising a cylinder, a limit post, and a sliding block was designed to automatically adjust the position of the solenoid valve and to automatically adjust the valve opening through the solenoid valve, thereby ensuring the consistency and accuracy of grease injection.

Benefits of technology

It enables automatic adjustment of the solenoid valve position based on the bearing model, avoiding manual adjustment and ensuring the accuracy and consistency of each grease injection.

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Abstract

The full-automatic grease injection gland tool for the precision bearing comprises a base, a fixing block is fixedly installed on one side of the upper end of the base, a third air cylinder is fixedly installed at the upper end of the fixing block, and the extending end of the third air cylinder penetrates through the fixing block and is inwards and fixedly provided with a second fixing plate. The second fixing plate is installed in the open groove in a sliding mode, a first fixing plate is fixedly installed on one side of the second fixing plate, a sliding groove is formed in the left end of the first fixing plate, a first air cylinder is fixedly installed on the left side of the first fixing plate, and two limiting columns are fixedly installed in the sliding groove; the extending end of the first air cylinder penetrates through the first fixing plate to be internally and fixedly provided with a sliding block, the sliding block is slidably installed on the limiting column, and an electromagnetic valve is fixedly installed on the sliding block. By arranging the first air cylinder, the limiting column and the sliding block, the position of the electromagnetic valve can be automatically adjusted according to parameters of different bearing models, and the situation that an operator can only manually adjust the position of the electromagnetic valve is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of bearing processing equipment technology, and in particular to a fully automatic grease injection cap tooling for precision bearings. Background Technology

[0002] In the field of bearing processing equipment, the production quality and efficiency of precision bearings are of paramount importance, and the grease injection and capping process is a key step in this process. Currently, fully automated grease injection and capping fixtures for precision bearings are widely used, achieving a certain degree of automated production and capable of completing basic grease injection and capping operations. However, as the performance requirements for precision bearings continue to rise across industries, the problems exposed by existing fixtures are becoming increasingly prominent.

[0003] However, the existing fully automatic grease injection capping fixture for precision bearings still has the following problems:

[0004] 1. The existing tooling does not have an integrated automated adjustment system, and cannot automatically adjust the position of the solenoid valve according to the parameters of different bearing models. Operators can only rely on their own knowledge of the grease injection requirements of different bearing models to manually adjust the distance that the solenoid valve needs to be adjusted.

[0005] 2. Many existing tools rely on the operator's experience to control the amount of grease injected, and the grease is injected by manually adjusting the valve opening and injection time. However, manual operation is greatly affected by individual conditions and skill levels, making it difficult to guarantee the consistency and accuracy of each grease injection.

[0006] According to the Chinese Patent Announcement No. CN214331243U, a fully automatic grease injection cap tooling for precision bearings is disclosed, which relates to the field of bearing processing. It includes a base, a cap is set on the top of the base, and connecting plates are fixedly connected to both ends of the upper surface of the cap. The connecting plates are connected to a hydraulic device, a sealing mechanism is set in the middle of the cap, and a grease injection mechanism is set on the edge of the upper surface of the cap. This invention improves grease injection efficiency by incorporating a sealing mechanism on the pressure cap. The cylinder in this mechanism, via a push rod and piston, injects air from the sealing groove into the air bladder, causing it to inflate and seal the central cavity of the bearing inner ring. This prevents grease from entering the bearing inner ring. The solenoid valve on the pressure cap is movable, its position adjusted via a threaded rod. The threaded rod and return spring work together to maintain the valve's stability, allowing the grease inlet on the solenoid valve to accommodate bearings of different sizes. However, this invention relies solely on the operator's manual adjustment of the solenoid valve position according to the grease requirements of different bearing models; it cannot automatically adjust the solenoid valve position based on the parameters of different bearing models. Utility Model Content

[0007] The purpose of this utility model is to provide a fully automatic grease injection capping fixture for precision bearings, which solves the problem that the existing fully automatic grease injection capping fixture for precision bearings does not have an integrated automated adjustment system, cannot automatically adjust the position of the solenoid valve according to the parameters of different bearing models, and relies on the operator's experience to control the amount of grease injection, and completes the grease injection by manually adjusting the valve opening and grease injection time.

[0008] To achieve the above objectives, a fully automatic grease injection cap tooling for precision bearings is provided, comprising a base, a fixing block fixedly installed on one side of the upper end of the base, a slot opened inward on one side of the fixing block, a cylinder three fixedly installed on the upper end of the fixing block, a fixing plate two fixedly installed inward through the extension end of the cylinder three through the fixing block, the fixing plate two slidably installed in the slot, and a fixing plate one fixedly installed on one side of the fixing plate two.

[0009] A motor is fixedly installed in the middle of the fixed plate. A sliding groove is opened at the left end of the fixed plate. A cylinder is fixedly installed on the left side of the fixed plate. Two limiting posts are fixedly installed in the sliding groove. A sliding block is fixedly installed inward through the fixed plate at the extension end of the cylinder. The sliding block is slidably installed on the limiting posts. A through groove is opened at the bottom of the sliding groove. A solenoid valve is fixedly installed on the sliding block.

[0010] According to the aforementioned fully automatic grease injection capping fixture for precision bearings, the output end of the motor is fixedly connected to a rotating column through a fixed plate, and a rotating disk is threaded onto the bottom of the rotating column.

[0011] According to the aforementioned fully automatic grease injection cap fixture for precision bearings, four support frames are symmetrically fixedly installed on the fixed plate, and support plates are fixedly installed on the support frames.

[0012] According to the aforementioned fully automatic grease injection capping fixture for precision bearings, a grease injection box is fixedly installed on the support plate, and a feed port is provided on one side of the grease injection box.

[0013] According to the aforementioned fully automatic grease injection capping fixture for precision bearings, a second cylinder is fixedly installed on the grease injection box, and a piston plate is fixedly installed inward through the extension end of the second cylinder into the grease injection box.

[0014] According to the aforementioned fully automatic grease injection cap fixture for precision bearings, one end of the solenoid valve is fitted with a grease injection hose, and the grease injection hose passes through a support plate and is fixedly installed at the bottom of the grease injection box.

[0015] According to the aforementioned fully automatic grease injection cap tooling for precision bearings, a grease injection tube is threaded downwards onto the through sliding block of the solenoid valve, and the grease injection tube is slidably installed in the through groove.

[0016] According to the aforementioned fully automatic grease injection capping fixture for precision bearings, a grease injection nozzle is fixedly installed at the bottom of the grease injection tube.

[0017] The above-mentioned solution has the following beneficial effects:

[0018] 1. This patent, by setting up a cylinder, a limit post and a sliding block, can automatically adjust the position of the solenoid valve according to the parameters of different bearing models during use, avoiding the need for operators to manually adjust the position of the solenoid valve themselves.

[0019] 2. This patent, by setting up a solenoid valve, can automatically adjust the valve opening during use, ensuring the consistency and accuracy of each grease injection, and avoiding the need to manually adjust the valve opening and grease injection time to complete the grease injection.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is an overall drawing of a fully automatic grease injection cap tooling for precision bearings according to this utility model;

[0023] Figure 2 This is a schematic diagram of the fixing block of a fully automatic grease injection cap tooling for precision bearings according to this utility model;

[0024] Figure 3 This utility model relates to a fully automatic grease injection cap tooling for precision bearings. Figure 1 Schematic diagram A in the diagram;

[0025] Figure 4 This is a cross-sectional view of the injection box of a fully automatic grease injection capping fixture for precision bearings according to this utility model.

[0026] Legend:

[0027] 1. Base; 2. Grease injection pipe II; 3. Fixing plate I; 4. Cylinder I; 5. Grease injection pipe I; 6. Inlet; 7. Cylinder II; 8. Grease injection box; 9. Support plate; 10. Support frame; 11. Motor; 12. Rotating column; 13. Rotating disk; 14. Grease injection nozzle; 15. Groove; 16. Fixing plate II; 17. Cylinder III; 18. Fixing block; 19. Slide groove; 20. Sliding block; 21. Limiting column; 22. Through groove; 23. Solenoid valve; 24. Piston plate. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] Reference Figure 1-4 This utility model discloses an automatic grease injection capping fixture for precision bearings, comprising a base 1. A fixing block 18 is fixedly installed on one side of the upper end of the base 1. A slot 15 is formed inward on one side of the fixing block 18. A cylinder 3 17 is fixedly installed on the upper end of the fixing block 18. A fixing plate 2 16 is fixedly installed inward through the extension end of the cylinder 3 17, and the fixing plate 2 16 is slidably installed in the slot 15. A fixing plate 1 3 is fixedly installed on one side of the upper fixing plate 2 16. In use, by starting the cylinder 3 17, the fixing plate 2 16 fixedly installed on the extension end of the cylinder 3 17 moves in the slot 15, thereby moving the fixing plate 1 3 fixedly installed on one side of the fixing plate 2 16, and simultaneously moving all parts fixedly installed on the fixing plate 1 3. A motor 11 is fixedly installed in the middle of the fixing plate 1 3. A sliding groove 19 is formed on the left end of the fixing plate 1 3. A cylinder is fixedly installed on the left side of the fixing plate 1 3. Two limiting posts 21 are fixedly installed inside the slide groove 19. A sliding block 20 is fixedly installed inside the extension end of the cylinder 4 through the fixing plate 3. The sliding block 20 is slidably installed on the limiting posts 21. A through groove 22 is opened at the bottom of the slide groove 19. A solenoid valve 23 is fixedly installed on the sliding block 20. When in use, the cylinder 4 is started to drive the sliding block 20 fixedly installed on the extension end of the cylinder 4 and slidably installed on the limiting post 21 to move. At the same time, the solenoid valve 23 fixedly installed on the sliding block 20 is driven to move. The output end of the motor 11 is fixedly connected to the rotating post 12 downward through the fixing plate 3. A rotating disk 13 is threadedly installed at the bottom of the rotating post 12. The motor 11 is started to drive the rotating post 12 fixedly installed at the output end of the motor 11 to rotate. At the same time, the rotating disk 13 threadedly connected to the bottom of the rotating post 12 is driven to rotate. The rotating disk 13 can be replaced according to different models and sizes of bearings.

[0030] Four support frames 10 are symmetrically fixedly installed on the fixed plate 3. Support plates 9 are fixedly installed on the support frames 10. A grease injection tank 8 is fixedly installed on the support plate 9. A feed port 6 is provided on one side of the grease injection tank 8. A cylinder 7 is fixedly installed on the grease injection tank 8. A piston plate 24 is fixedly installed inward through the extension end of the cylinder 7 through the grease injection tank 8. A grease injection hose 5 is sleeved on one end of the solenoid valve 23. The grease injection hose 5 is fixedly installed at the bottom of the grease injection tank 8 through the support plate 9. A grease injection tube 2 is threaded downward through the sliding block 20 of the solenoid valve 23. The grease injection tube 2 is slidably installed in the through groove 22. A grease injection nozzle 14 is fixedly installed at the bottom of the grease injection tube 2. By starting the cylinder 7, the piston plate 24 fixedly installed at the extension end of the cylinder 7 moves downward, generating pressure to deliver the grease material to the grease injection hose 5. At the same time, the solenoid valve 23 automatically adjusts the valve opening according to the size of the bearing, and then delivers the grease material into the grease injection tube 2. Finally, it is injected into the bearing through the grease injection nozzle 14.

[0031] Working principle: When a precision bearing is put into use using a fully automatic grease injection capping fixture, the bearing is first placed on the base 1. Then, cylinder 3 17 is activated to move the fixed plate 2 16 within the slot 15, simultaneously moving the fixed plate 1 3 fixedly mounted on one side of the fixed plate 2 16. This also moves all parts fixedly mounted on the fixed plate 1 3. When the rotating disk 13 is in contact with the inside of the bearing, cylinder 4 is activated to move the sliding block 20, simultaneously moving the solenoid valve 23 fixedly mounted on the sliding block 20. The system automatically adjusts the position of the solenoid valve 23 to the required position of the injection-molded bearing, then starts the motor 11 to drive the rotating column 12 to rotate, which in turn drives the rotating disk 13 threaded to the bottom of the rotating column 12 to rotate. The rotating disk 13 drives the bearing to rotate together. Finally, the cylinder 7 is started, which drives the piston plate 24 to move downward, generating pressure to deliver the grease material to the grease injection hose 5. At the same time, the solenoid valve 23 automatically adjusts the valve opening according to the size of the bearing, and then delivers the grease material into the grease injection tube 2. Finally, the grease material is injected into the bearing through the grease injection nozzle 14.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A full-automatic grease injection gland tool for precision bearings, comprising a base (1), characterized in that, A fixing block (18) is fixedly installed on one side of the upper end of the base (1). A slot (15) is opened inward on one side of the fixing block (18). A cylinder three (17) is fixedly installed on the upper end of the fixing block (18). A fixing plate two (16) is fixedly installed inward through the fixing block (18). The fixing plate two (16) is slidably installed in the slot (15). A fixing plate one (3) is fixedly installed on one side of the fixing plate two (16). A motor (11) is fixedly installed in the middle of the fixed plate (3). A slide groove (19) is opened at the left end of the fixed plate (3). A cylinder (4) is fixedly installed on the left side of the fixed plate (3). Two limit posts (21) are fixedly installed in the slide groove (19). A sliding block (20) is fixedly installed inward through the fixed plate (3) at the extension end of the cylinder (4). The sliding block (20) is slidably installed on the limit post (21). A through groove (22) is opened at the bottom of the slide groove (19). A solenoid valve (23) is fixedly installed on the sliding block (20).

2. The full-automatic grease injection cover pressing tool for precision bearings according to claim 1, characterized in that, The output end of the motor (11) is fixedly connected to a rotating column (12) through the fixed plate (3) downwards, and a rotating disk (13) is threadedly installed at the bottom of the rotating column (12).

3. The full-automatic grease injection cover pressing tool for precision bearings according to claim 1, characterized in that, Four support frames (10) are symmetrically fixed on the fixed plate (3), and support plates (9) are fixedly installed on the support frames (10).

4. The full-automatic grease injection cover pressing tool for precision bearings according to claim 3, characterized in that, A grease injection box (8) is fixedly installed on the support plate (9), and a feed port (6) is provided on one side of the grease injection box (8).

5. The full-automatic grease injection cover pressing tool for precision bearings according to claim 4, characterized in that, A cylinder 2 (7) is fixedly installed on the grease injection box (8), and a piston plate (24) is fixedly installed inward through the grease injection box (8) at the extended end of the cylinder 2 (7).

6. The full-automatic grease injection cover pressing tool for precision bearings according to claim 1, characterized in that, One end of the solenoid valve (23) is fitted with a grease injection hose (5), which passes through the support plate (9) and is fixedly installed at the bottom of the grease injection box (8).

7. The full-automatic grease injection cover pressing tool for precision bearings according to claim 1, characterized in that, The through sliding block (20) of the solenoid valve (23) is threaded downwards with a grease injection pipe (2), which is slidably installed in the through groove (22).

8. The fully automatic grease injection cap tooling for precision bearings according to claim 7, characterized in that, The bottom of the grease injection tube (2) is fixedly installed with a grease injection nozzle (14).

Citation Information

Patent Citations

  • Full-automatic grease injection gland tool for precision bearing

    CN214331243U