Rubber lip seal and lip seal snap spring assembly tool

Abstract

The utility model relates to a rubber lip seal and lip seal snap spring assembly tool which comprises a press bottom plate, a lip seal press-fitting pump positioning assembly, a rubber lip seal containing box, a start button and a press body, wherein the lip seal press-fitting pump positioning assembly is fixed above the press bottom plate and used for positioning a compressor, and the rubber lip seal containing box is used for containing a lip seal. And a pressure head transition plate driven by a driving cylinder is arranged on one side of the press body. The utility model relates to the technical field of assembly of rubber lip seals and lip seal snap springs. According to the rubber lip seal and snap spring integrated assembly tool, after the pressing head assembly makes contact with the lip seal snap spring, pressure is continuously exerted on the pressing head assembly, the lip seal snap spring shrinks and moves downwards along the lip seal snap spring guide-in tool, the pressing head assembly is continuously pressed downwards to make contact with the lip seal snap spring guide-in tool, a rubber lip seal and the lip seal snap spring are pressed in place, and assembly is completed; and the pressure head assembly is in contact with the clamp spring guide-in tool for limiting, so that the lip seal is prevented from being damaged due to too deep pressing, and the mounting precision is ensured when the rubber lip seal and the lip seal clamp spring can be quickly and effectively mounted.

Description

Technical Field

[0001] This utility model relates to the field of lip seal spring assembly technology, specifically a rubber lip seal and lip seal spring assembly tooling. Background Technology

[0002] During operation, the compressor rotates at high speed. The rubber lip seal serves to seal the inside and outside of the compressor body. The lip seal retaining spring is installed in the groove of the front cover retaining ring to prevent the rubber lip seal from falling off or shifting during rotation. Its main function is to fix the lip seal.

[0003] The existing lip seal spring assembly fixture has the following problems during assembly:

[0004] (1) If the lip seal retainer is too short, the retainer will expand after passing through the guide sleeve. After expanding, it will contact the inner wall of the product. However, the retainer is not in place and continues to move downward. The two ears of the retainer will scratch the inner wall of the product, generating fine dust that falls into the gap between the lip seal and the workpiece. This can easily cause premature wear and damage to the lip seal during use.

[0005] (2) The assembly efficiency is low and the safety of the operators cannot be effectively protected during assembly.

[0006] (3) Traditional methods often require multiple pressing operations, which increases the complexity of operation and time costs. With the development of industrial automation and precision manufacturing, the requirements for assembly efficiency and accuracy are getting higher and higher. Therefore, it is particularly important to develop a tooling that can quickly, accurately and safely complete the assembly of rubber lip seals and lip seal springs. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a rubber lip seal and lip seal spring assembly fixture, which solves the aforementioned problems.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a rubber lip seal and lip seal retaining spring assembly tooling, including a press base plate and a lip seal press pump positioning assembly for positioning the compressor, a rubber lip seal placement box for placing the lip seal, a start button, and a press body respectively fixed on the press base plate. A press head transition plate driven by a drive cylinder is provided on one side of the press body. A press head fixing sleeve is fixedly connected to the bottom of the press head transition plate. A press head assembly is threadedly connected to the bottom of the inner cavity of the press head fixing sleeve.

[0009] The two sides of the press body are respectively fixedly connected to the lip seal spring assembly bracket and the lip seal guide sleeve fixing bracket;

[0010] The top of the lip seal spring assembly bracket is fixedly connected to an assembly rod for placing the lip seal spring, and a 1.6mm gap is provided between the bottom of the assembly rod and the lip seal spring assembly bracket;

[0011] The top of the lip seal guide sleeve fixing bracket is clamped to the lip seal guide sleeve placement bracket by an interference fit. The top of the lip seal guide sleeve fixing bracket is fitted with a retaining spring guide fixture by a clearance fit. The inner cavity of the lip seal guide sleeve fixing bracket is clamped to the lip seal guide sleeve by a clearance fit. The bottom of the lip seal guide sleeve is provided with a positioning hole adapted to the compressor rotating shaft.

[0012] As a further embodiment of this utility model: the lip seal press pump positioning assembly includes a positioning plate fixed above the press base plate, and the top of the positioning plate is fixedly connected with a positioning pin that matches the positioning reference hole at the bottom of the compressor.

[0013] As a further embodiment of this utility model: two start buttons are provided, both of which are electrically connected to the press body. By setting two start buttons, the press can be started with both hands to prevent the hands from being crushed.

[0014] As a further embodiment of this utility model: the inner cavity of the pressure head fixing sleeve is threaded with an internal hexagonal bolt set screw that abuts against the pressure head assembly.

[0015] As a further embodiment of this utility model: the thickness of the lip seal spring is 1.3mm, and a photoelectric sensor switch is fixedly connected to the side of the lip seal spring mounting bracket.

[0016] When using the compressor, first place it on the positioning plate and align it with the positioning pin through the positioning reference hole on the bottom of the compressor. Insert the retaining ring into the tooling and place it into the compressor lip seal fitting position hole to find the center plane contacting the compressor lip seal pressing surface. Place the lip seal guide sleeve onto the compressor main shaft through the positioning hole at the bottom. Take the rubber lip seal from the rubber lip seal placement box and place it on the lip seal guide sleeve. Manually remove the lip seal retaining ring with the photoelectric sensor switch that alarms if it is not removed. Press the start button with both hands, and the compressor will drive the pressure head transition plate to press down. The pressure head transition plate will drive the pressure head assembly. The pressure head assembly contacts the lip seal retaining spring. Continuous pressure causes the rubber lip seal to slide downwards along the lip seal guide sleeve. After contacting the lip seal retaining spring, the pressure head assembly continues to apply pressure, causing the lip seal retaining spring to retract and move downwards along the lip seal retaining spring guide fixture. Continuous pressure causes the pressure head assembly to contact the lip seal retaining spring guide fixture, pressing the rubber lip seal and lip seal retaining spring into place. After holding the pressure for 2 seconds, the pressure cylinder drives the pressure head transition plate to retract, completing the assembly. The pressure head assembly contacts the retaining spring guide fixture to limit the pressure and prevent excessive pressing that could damage the lip seal. This ensures machining accuracy while allowing for quick and effective installation of the lip seal retaining spring.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] (1) Improved assembly efficiency: By designing a dedicated assembly fixture for the rubber lip seal and lip seal spring, the assembly process has been transformed from manual operation to automated assembly, significantly improving assembly efficiency. In particular, the assembly of the rubber lip seal and lip seal spring is completed in one press-fit operation, reducing the number of operation steps and time.

[0019] (2) Ensure assembly accuracy: The tooling uses precision positioning components and guide sleeves to ensure the precise positioning of the rubber lip seal and lip seal spring during the assembly process, thereby ensuring the accuracy and consistency of the assembly.

[0020] (3) Enhanced operational safety: By setting up dual start buttons and photoelectric sensor switches, misoperation and potential safety risks during operation, such as hand crushing accidents, are effectively prevented, thus improving operational safety.

[0021] (4) Reduced operation difficulty: The tooling design takes into account the ease of operation. The threaded connection enables quick replacement of the pressure head assembly, adapting to the assembly needs of different products. At the same time, it eliminates the need for traditional snap ring pliers, reducing the difficulty of operation and skill requirements.

[0022] (5) Prevent overpressure damage: The contact limit design between the pressure head assembly and the retaining ring guide tool effectively prevents damage to the lip seal due to excessive pressure, thus protecting the integrity of the parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention in the press-fit state;

[0025] Figure 3 This is a front view of the structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the present invention in the feeding state;

[0027] Figure 5 This is a side view of the structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the lip seal guide sleeve fixing bracket of this utility model;

[0029] Figure 7 This is a schematic diagram of the lip seal spring assembly bracket of this utility model;

[0030] Figure 8 This is a cross-sectional view of the structure of the lip seal guide sleeve placement bracket of this utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the present invention in the press-fit state.

[0032] In the diagram: 1. Press base plate; 2. Press body; 3. Press head transition plate; 4. Lip seal circlip assembly bracket; 5. Assembly rod; 6. Lip seal circlip; 7. Photoelectric sensor switch; 8. Lip seal guide sleeve fixing bracket; 9. Lip seal guide sleeve placement bracket; 10. Lip seal guide sleeve; 11. Circlip guide tooling; 12. Press head fixing sleeve; 13. Press head assembly; 14. Lip seal; 15. Positioning plate; 16. Start button; 17. Rubber lip seal placement box; 18. Compressor. Detailed Implementation

[0033] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0034] Please see Figure 1-9 This utility model provides a technical solution: a rubber lip seal and lip seal spring assembly tooling, including a press base plate 1 and a lip seal press pump positioning assembly for positioning the compressor 18, a rubber lip seal placement box 17 for placing the lip seal 14, a start button 16 and a press body 2 respectively fixed on the press base plate 1. A press head transition plate 3 driven by a drive cylinder is provided on one side of the press body 2. A press head fixing sleeve 12 is fixedly connected to the bottom of the press head transition plate 3. A press head assembly 13 is threadedly connected to the bottom of the inner cavity of the press head fixing sleeve 12. The threaded connection can realize quick change and is suitable for various products.

[0035] The two sides of the press body 2 are respectively fixedly connected to the lip seal spring assembly bracket 4 and the lip seal guide sleeve fixing bracket 8;

[0036] The top of the lip seal spring assembly bracket 4 is fixedly connected to an assembly rod 5 for placing the lip seal spring 6. There is a 1.6mm gap between the bottom of the assembly rod 5 and the lip seal spring assembly bracket 4. The lip seal spring 6 falls onto the flat plate by its own weight and is picked up manually.

[0037] The top of the lip seal guide sleeve fixing bracket 8 is clamped to the lip seal guide sleeve placement bracket 9 by interference fit. The top of the lip seal guide sleeve fixing bracket 8 is placed with the retaining spring guide fixture 11 by clearance fit. The inner cavity of the lip seal guide sleeve fixing bracket 8 is clamped to the lip seal guide sleeve 10 by clearance fit. The bottom of the lip seal guide sleeve 10 is provided with a positioning hole adapted to the compressor rotating shaft.

[0038] The lip seal press pump positioning assembly includes a positioning plate 15 fixed above the press base plate 1. The top of the positioning plate 15 is fixedly connected with a positioning pin that matches the positioning reference hole at the bottom of the compressor 18. Different positioning plates 15 can be replaced for different products.

[0039] There are two start buttons 16, both of which are electrically connected to the press body 2. The two start buttons 16 allow for two-hand start to prevent hand crushing.

[0040] The inner cavity of the pressure head fixing sleeve 12 is threaded with an internal hexagonal bolt set screw that abuts against the pressure head assembly 13.

[0041] The lip seal spring 6 is 1.3mm thick. A photoelectric sensor switch 7 is fixedly connected to the side of the lip seal spring mounting bracket 4. If the photoelectric sensor switch 7 retainer ring of the lip seal spring 6 is missing, the equipment will not start, preventing errors and foolproof installation.

[0042] When using the compressor, first place the compressor 18 on the positioning plate 15, align the positioning pin with the positioning reference hole at the bottom of the compressor 18, insert the retaining ring into the tooling 11 and place it into the lip seal fitting position hole of the compressor 18, find the center plane to contact the lip seal pressing surface of the compressor 18, and fit the lip seal guide sleeve 10 onto the main shaft of the compressor 18 through the positioning hole at the bottom. Take the rubber lip seal 14 from the rubber lip seal placement box 17 and place it on the lip seal guide sleeve 10. Manually remove the lip seal retaining ring 6. The tooling control allows only one to be removed at a time. The photoelectric sensor switch 7 alarms for missing equipment. Press the start button 16 with both hands. The press drives the pressure head transition plate 3 to press down. The pressure head transition plate 3 drives the pressure head assembly 13 to press down and contact the lip seal retaining ring 6. The rubber lip seal 14 is continuously pressed down and slides downward along the lip seal guide sleeve 10. After the pressure head assembly 13 contacts the lip seal retaining spring, it is continuously subjected to pressure. The lip seal retaining spring 6 retracts and moves downward along the lip seal retaining spring guide fixture 11. The pressure head assembly 13 is continuously pressed down and contacts the lip seal retaining spring guide fixture 11. The rubber lip seal and lip seal retaining spring 6 are pressed into place. After holding the pressure for 2 seconds, the pressure cylinder drives the pressure head transition plate 3 to retract, completing the assembly. The pressure head assembly 13 contacts the retaining spring guide fixture 11 to limit the pressure and prevent excessive pressure from damaging the lip seal. The installation accuracy is ensured while allowing for quick and effective installation of the lip seal retaining spring 6. The retaining spring guide fixture 11 eliminates the need for retaining spring pliers, and the two-stage pressing is reduced to a single pressing, while also adding a pressing limit function.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rubber lip seal and lip seal retaining spring assembly fixture, comprising a press base plate (1) and a lip seal press pump positioning assembly for positioning a compressor (18) respectively fixed above the press base plate (1), a rubber lip seal placement box (17) for placing the lip seal (14), a start button (16) and a press body (2), characterized in that: A press head transition plate (3) driven by a drive cylinder is provided on one side of the press body (2). A press head fixing sleeve (12) is fixedly connected to the bottom of the press head transition plate (3). A press head assembly (13) is threadedly connected to the bottom of the inner cavity of the press head fixing sleeve (12). The press body (2) is fixedly connected to the two sides of the press body (2) with a lip seal spring assembly bracket (4) and a lip seal guide sleeve fixing bracket (8); The top of the lip seal spring assembly bracket (4) is fixedly connected to an assembly rod (5) for placing the lip seal spring (6), and a 1.6mm gap is provided between the bottom of the assembly rod (5) and the lip seal spring assembly bracket (4). The top of the lip seal guide sleeve fixing bracket (8) is fitted with a lip seal guide sleeve placement bracket (9) by an interference fit. The top of the lip seal guide sleeve fixing bracket (8) is fitted with a snap ring guide fixture (11) by a clearance fit. The inner cavity of the lip seal guide sleeve fixing bracket (8) is fitted with a lip seal guide sleeve (10) by a clearance fit. The bottom of the lip seal guide sleeve (10) is provided with a positioning hole adapted to the compressor rotating shaft.

2. The rubber lip seal and lip seal spring assembly fixture according to claim 1, characterized in that: The lip seal press pump positioning assembly includes a positioning plate (15) fixed above the press base plate (1), and the top of the positioning plate (15) is fixedly connected with a positioning pin that matches the positioning reference hole at the bottom of the compressor (18).

3. The rubber lip seal and lip seal spring assembly fixture according to claim 1, characterized in that: There are two start buttons (16), both of which are electrically connected to the press body (2).

4. The rubber lip seal and lip seal spring assembly fixture according to claim 1, characterized in that: The inner cavity of the pressure head fixing sleeve (12) is threaded with an internal hexagonal bolt set screw that abuts against the pressure head assembly (13).

5. The rubber lip seal and lip seal spring assembly fixture according to claim 1, characterized in that: The lip seal spring (6) has a thickness of 1.3 mm, and a photoelectric sensor switch (7) is fixedly connected to the side of the lip seal spring mounting bracket (4).

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