Coating hydraulic loading mechanism

By employing a coating hydraulic assembly mechanism with sponge storage and contact coating in the sealing ring assembly process, the problems of uneven oil application and improper installation on the outside of the sealing ring are solved, achieving efficient and safe sealing ring assembly.

CN121798337APending Publication Date: 2026-04-07NANJING WENXIANG AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional sealing ring assembly processes suffer from problems such as low efficiency, poor consistency, high labor intensity, difficulty in ensuring coating uniformity, easy contamination, and improper installation. Existing oiling equipment cannot effectively solve the problem of oiling the outside of the sealing ring.

Method used

A liquid coating mechanism was designed, which uses a sponge storage and contact coating method to coat the liquid medium on the outside of the annular groove of the second assembly positioning seat, and uses a spring telescopic mechanism to stably position the first assembly. Combined with a movable slide and a buffer mechanism, the liquid coating and pressing operation are automated.

Benefits of technology

It achieves uniform coating on the outside of the sealing ring, reduces media waste and pollution, improves assembly quality and efficiency, reduces the risk of workpiece damage, and ensures operational safety and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a coating press fitting mechanism which is at least used for assembling a first assembly body and a second assembly body, coating the outer side of the second assembly body with a liquid phase medium and sleeving the outer side of the first assembly body with the second assembly body of an annular structure, and comprises a first assembly body positioning seat, a second assembly body positioning seat and a press fitting mechanism, the second assembly body positioning seat is provided with an annular groove position matched with the second assembly body, a liquid phase storage and coating mechanism is arranged on the outer side of the annular groove position, and the first assembly body positioning seat is arranged on the inner side of the second assembly body positioning seat through a spring telescopic mechanism; the first assembly body is placed on the first assembly body positioning seat and moves downwards through the press-fitting mechanism above the first assembly body positioning seat so that the first assembly body can be inserted into the second assembly body. The liquid phase storage and coating mechanism is arranged on the outer side of the annular groove position of the second assembly body positioning seat, so that the outer circumferential surface of the second assembly body of an annular structure can be directly and fully coated.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the field of automation equipment, and particularly relates to a liquid-coated press-fitting mechanism. BACKGROUND

[0002] In the sealing ring assembly process, the traditional manual oiling and press-fitting mode generally has problems such as low efficiency, poor consistency and high labor intensity. The operator needs to manually apply lubricating grease, which is difficult to guarantee uniformity and is prone to pollution or waste. Then, the sealing ring is pressed into the groove by hand or simple tools, which is easy to cause the sealing ring to be distorted, scratched or not installed in place due to uneven force, directly affecting the sealing performance and product reliability. In addition, the quality of manual operation depends on the experience of the operator, and it is difficult to achieve standardization, which has become a bottleneck of production capacity and quality control in mass production.

[0003] The patent number CN215507544U discloses a sealing ring automatic grease coating device and an assembly equipment of rear axle half shaft components.

[0004] The sealing ring automatic grease coating device in the scheme realizes automatic coating of grease to the inner periphery of the sealing ring, without manual coating, thereby reducing human operation errors, improving grease coating efficiency and quality. However, the device cannot coat oil on the outer side of the sealing ring. And as shown in the above patent, the existing oiling mechanism mostly uses the spraying method to coat oil, which may cause overflow. SUMMARY

[0005] In view of the problems in the background art, the present application provides a liquid-coated press-fitting mechanism, which is at least used for the assembly between a first assembly body and a second assembly body, coats liquid medium on the outer side of the second assembly body, and sets the ring-shaped second assembly body on the outer side of the first assembly body, comprising: a first assembly body positioning seat, a second assembly body positioning seat, a press-fitting mechanism, the second assembly body positioning seat is provided with a ring-shaped groove position matched with the second assembly body, a liquid phase storage and coating mechanism is arranged on the outer side of the ring-shaped groove position, the first assembly body positioning seat is arranged in the inner side of the second assembly body positioning seat through a spring extension mechanism, the first assembly body is placed on the first assembly body positioning seat and moved downward by the press-fitting mechanism above to insert into the second assembly body.

[0006] As a preferred scheme of the present application, the liquid phase storage and coating mechanism comprises: a sponge arranged in the ring-shaped groove position, the sponge is connected with the outer side wall of the ring-shaped groove position, the outer side wall of the ring-shaped groove position is connected with a liquid inlet pipeline and a liquid return pipeline, and the liquid inlet pipeline and the liquid return pipeline cooperate to fill the sponge with the liquid phase medium.

[0007] As a preferred embodiment of the present invention, the second assembly positioning seat includes an annular worktable, the annular groove is disposed on the annular worktable, and the liquid inlet pipe and the liquid return pipe pass through the annular worktable and are connected to the external pipe.

[0008] As a preferred embodiment of the present invention, the spring telescopic mechanism includes: a guide post, the guide post being disposed inside the annular worktable, a slider being provided on the guide post that can move up and down along the guide post, a spring being sleeved on the outer side of the guide post, one end of the spring being connected to the slider, the slider being pushed into the top of the guide post by the spring, and a limit block being installed at the top of the guide post.

[0009] As a preferred embodiment of the present invention, the first assembly positioning seat includes a multi-layer stepped groove disposed on the upper end of the slider, wherein the multi-layer stepped groove is located above the annular worktable when the slider is located at the top of the guide post.

[0010] As a preferred embodiment of the present invention, the pressing mechanism includes a lower press corresponding to the slider, the lower press being fixed to the frame by a press top plate, and the press head of the lower press being positioned directly opposite the first assembly positioning seat.

[0011] As a preferred embodiment of the present invention, both the first assembly positioning seat and the second assembly positioning seat are mounted on the slide table, the slide table is mounted on the slide rail, and both ends of the slide rail are provided with buffer mechanisms. When the movable slide table is located at one end of the slide rail, the press head of the press machine is positioned directly opposite the multi-layer stepped slot.

[0012] In a preferred embodiment of the present invention, the slide rail is mounted on a base, a frame is mounted on the base, an operation window facing the slide rail is provided on the fixed frame, and a safety light curtain is installed at the operation window.

[0013] As a preferred embodiment of the present invention, the other surfaces of the frame, excluding the operating window, are assembled using transparent panels.

[0014] As a preferred embodiment of the present invention, buffer mechanisms are installed at both ends of the slide rail.

[0015] Compared with the prior art, the present invention provides a hydraulic coating mechanism, which has the following advantages: 1. The present invention provides a liquid phase storage and coating mechanism (annular sponge soaked in liquid phase medium) on the outer side of the annular groove of the second assembly positioning seat, which can directly and fully coat the outer circumferential surface of the second assembly (sealing ring) with an annular structure.

[0016] 2. This invention uses a sponge storage and contact coating method to replace the traditional spray coating method. It can accurately control the amount of coating liquid, so that the liquid medium (such as grease) is evenly and appropriately transferred to the surface of the second assembly, which basically eliminates the overflow of splashing, dripping and other overflows. This saves the cost of the medium and keeps the working environment clean.

[0017] 3. The first assembly positioning seat of the present invention is supported by a spring telescopic mechanism (guide post, slider, spring) and is provided with multi-layer stepped grooves, which makes the first assembly stable and applicable to various types of assemblies. During the press-fitting process, the spring provides cushioning, allowing the first assembly to be guided into the second assembly with a gentler force, reducing the risk of workpiece damage or deformation caused by rigid impact, and improving the press-fitting success rate and assembly quality.

[0018] 4. This invention integrates the positioning seats of the first and second assemblies onto a movable slide table, which cooperates with a fixed pressing mechanism to achieve rapid and accurate switching between the coating and pressing stations. Combined with the buffer mechanisms at both ends of the slide rail, operation is smooth. The entire mechanism is mounted on a base with a frame, and the operating window is equipped with a safety light curtain. The remaining surfaces are enclosed with transparent panels, ensuring operator safety while facilitating observation of the internal working status. This achieves automated or semi-automated operation with human-machine separation, improving production efficiency and operational safety. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a hydraulic coating mechanism.

[0020] Figure 2 This is a schematic diagram of the structure in which the positioning seats of the first and second assemblies are integrated into the movable slide.

[0021] Figure 3 This is a schematic diagram of the press-fitting mechanism.

[0022] Figure 4 This is a schematic diagram of the base structure.

[0023] Figure 5 This is a structural schematic diagram of the first assembly.

[0024] Figure 6 This is a structural schematic diagram of the second assembly.

[0025] Among them: 1- Annular worktable; 2- Annular groove; 3- Sponge; 4- Liquid inlet pipe; 5- Liquid return pipe; 6- Guide column; 7- Spring; 8- Slider; 9- Multi-layer stepped groove; 10- Limit block; 11- Slide table; 12- Slide rail; 13- Lower press; 14- Press top plate; 15- Press head; 16- Base; 17- Frame; 18- Safety light curtain. Detailed Implementation

[0026] The present disclosure will now be described more fully below with reference to the accompanying drawings. However, the present disclosure may be implemented in many different ways and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided herein to make the disclosure more detailed and complete, and to fully convey the scope of the disclosure to those skilled in the art. The same reference numerals denote the same objects throughout the drawings.

[0027] Example 1 like Figures 1-6 The coating hydraulic assembly mechanism provided by the present invention is used at least for the assembly between the first assembly and the second assembly, coating the outer side of the second assembly with a liquid phase medium and fitting the annular structure of the second assembly onto the outer side of the first assembly.

[0028] In a typical embodiment, the first assembly is as follows: Figure 5 The end housing assembly shown, the second assembly is as follows Figure 6 The sealing ring assembly shown.

[0029] It includes: a first assembly positioning seat, a second assembly positioning seat, and a pressing mechanism. The second assembly positioning seat is provided with an annular groove that matches the second assembly. A liquid phase storage and coating mechanism is provided on the outer side of the annular groove 2. The first assembly positioning seat is set on the inner side of the second assembly positioning seat through a spring telescopic mechanism. The first assembly is placed on the first assembly positioning seat and moved downward by the pressing mechanism above it so that the first assembly is inserted into the second assembly.

[0030] In a typical embodiment, the second assembly positioning seat includes an annular worktable 1, an annular groove 2 is disposed on the annular worktable 1, and the liquid phase storage and coating mechanism includes: an annular sponge 3 disposed in the annular groove 2, the sponge 3 being connected to the outer wall of the annular groove 2, the outer wall of the annular groove 2 being connected to an inlet pipe and a return pipe, the inlet pipe and the return pipe cooperating to fill the sponge with a wetted liquid phase medium, and the inlet pipe 4 and the return pipe 5 penetrating the annular worktable 1 and communicating with external pipes.

[0031] In the above embodiments, the liquid medium is lubricating oil. As an optional solution of the present invention, the inlet and return pipelines are wetted by an oil pump to achieve the immersion of the sponge 3.

[0032] In a typical embodiment, the spring telescopic mechanism includes: a guide post 6, which is disposed inside the annular worktable 1. The guide post 6 is equipped with a slider 8 that can move up and down along the guide post. A spring 7 is also sleeved on the outside of the guide post 6. One end of the spring 7 is connected to the slider 8. The slider 8 is pushed into the top of the guide post 6 by the spring 7. A limit block 10 is installed at the top of the guide post 6. The first assembly positioning seat includes a multi-layer stepped groove 9 disposed on the upper end of the slider 8. When the slider 8 is located at the top of the guide post 6, the multi-layer stepped groove 9 is located above the annular worktable 1.

[0033] In the above embodiments Figure 6 The sealing ring assembly shown is assembled into the annular groove 2. The outer side of the sealing ring assembly is in contact with the sponge 3. The sponge 3, which is soaked in lubricating oil, performs an oiling operation on the sealing ring assembly. Figure 5 The large end housing assembly shown is assembled onto the multi-layer stepped slot 9. In the initial state, the spring 7 pushes the slider 8 to the top of the guide post 6, and the end housing assembly on the multi-layer stepped slot 9 is located above the sealing ring assembly.

[0034] In a typical embodiment, the pressing mechanism includes a lower press 13 corresponding to the slider 8. The lower press 13 is fixed to the frame 17 by the press top plate 14, and the press head 15 of the lower press 13 is positioned opposite the multi-layer stepped slot 9.

[0035] In the above embodiment, the operator assembles the sealing ring assembly into the annular groove 2 and the end housing assembly into the multi-layer stepped slot 9. The operator starts the press 13, and the press head 15 of the press moves downward to press the end housing assembly and the slider 8 downward together. After the end housing assembly moves down, it is inserted into and assembled into the sealing ring assembly.

[0036] In a preferred embodiment, both the first assembly positioning seat and the second assembly positioning seat are mounted on the slide table 11, which is mounted on the slide rail 12. When the slide table 11 is located at one end of the slide rail 12, the press head 15 of the press machine 13 is positioned directly opposite the multi-layer stepped slot 9.

[0037] In a preferred embodiment, the slide rail 12 is mounted on the base 16, and the base 16 is equipped with a frame 17. The frame 17 is provided with an operation window facing the slide rail 13, and a safety light curtain 18 is installed at the operation window.

[0038] In a typical embodiment, the other surfaces of the frame, excluding the operating window, are assembled using transparent panels. In a preferred embodiment, the transparent panels are made of transparent glass or acrylic material.

[0039] In a typical embodiment, buffer mechanisms are installed at both ends of the slide rail. In a preferred embodiment, the buffer mechanisms at both ends of the slide rail are a polyurethane buffer pad and a hydraulic damper, respectively.

[0040] The above description is merely a specific implementation of the embodiments of the present invention, but the protection scope of the embodiments of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention should be determined by the protection scope of the claims.

Claims

1. A coating hydraulic application mechanism, characterized in that, At least for assembly between a first assembly and a second assembly, the second assembly is coated with a liquid phase medium and the annular structure of the second assembly is fitted onto the outside of the first assembly. The assembly includes: a first assembly positioning seat, a second assembly positioning seat, and a pressing mechanism. The second assembly positioning seat has an annular groove that matches the second assembly. A liquid phase storage and coating mechanism is provided on the outer side of the annular groove. The first assembly positioning seat is set on the inner side of the second assembly positioning seat through a spring telescopic mechanism. The first assembly is placed on the first assembly positioning seat and moved downward by the pressing mechanism above it so that the first assembly is inserted into the second assembly.

2. The coating hydraulic application mechanism as described in claim 1, characterized in that, The liquid phase storage and coating mechanism includes: an annular sponge disposed in an annular groove, the sponge being connected to the outer wall of the annular groove, the outer wall of the annular groove being connected to an inlet pipe and a return pipe, the inlet pipe and the return pipe cooperating to fill the sponge with a wetted liquid medium.

3. The coating hydraulic application mechanism as described in claim 2, characterized in that, The second assembly positioning seat includes an annular worktable, the annular groove is disposed on the annular worktable, and the liquid inlet pipe and liquid return pipe pass through the annular worktable and are connected to external pipes.

4. A coating hydraulic application mechanism as described in claim 3, characterized in that, The spring telescopic mechanism includes: a guide post, which is disposed inside the annular worktable; a slider that can move up and down along the guide post is provided on the guide post; a spring is also sleeved on the outside of the guide post; one end of the spring is connected to the slider; the slider is pushed into the top of the guide post by the spring; and a limit block is installed at the top of the guide post.

5. A coating hydraulic application mechanism as described in claim 4, characterized in that, The first assembly positioning seat includes a multi-layer stepped groove disposed on the upper end of the slider. When the slider is located at the top of the guide post, the multi-layer stepped groove is located above the annular worktable.

6. A coating hydraulic application mechanism as described in claim 5, characterized in that, The pressing mechanism includes a lower press with a corresponding slider. The lower press is fixed to the frame by a press top plate, and the press head of the lower press is positioned directly opposite the first assembly positioning seat.

7. A coating hydraulic application mechanism as described in claim 6, characterized in that, Both the first assembly positioning seat and the second assembly positioning seat are mounted on the slide table, which is mounted on the slide rail. Both ends of the slide rail are provided with buffer mechanisms. When the moving slide table is located at one end of the slide rail, the press head of the lower press is positioned directly opposite the multi-layer stepped slot.

8. A coating hydraulic application mechanism as described in claim 7, characterized in that, The slide rail is mounted on the base, the base is equipped with a frame, the frame is provided with an operation window facing the slide rail, and a safety light curtain is installed at the operation window.

9. A coating hydraulic application mechanism as described in claim 8, characterized in that, Apart from the operating window, the other sides of the frame are assembled using transparent panels.

10. A coating hydraulic application mechanism as described in claim 9, characterized in that, The slide rail is equipped with buffer mechanisms at both ends.

Citation Information

Patent Citations

  • Automatic sealing ring greasing device and assembly equipment for rear axle half-shaft assembly parts

    CN215507544U