A guide tool for oil seal installation

Abstract

The utility model relates to oil seal installation frock technical field, and disclose a kind of for the guiding frock of oil seal installation, including guiding positioning sleeve, the inside of guiding positioning sleeve is provided with press fitting assembly;The press fitting assembly includes four guide rails, press fitting motor, transmission screw rod, driving disc, connecting rod, fixed boss, press fitting disc and limit seat;The top of transmission screw rod is connected with the output shaft of press fitting motor by coupling. Relative to prior art, the utility model is matched by press fitting motor, transmission screw rod, driving disc and other structures, realizes the automatic press fitting of oil seal, reduces the operation intensity of staff, and in the press fitting process, press fitting disc can descend at uniform speed, realizes the uniform speed press fitting of oil seal, avoids the situation that oil seal lip mouth instantaneous overload deformation or local stress concentration is caused due to strength fluctuation.

Description

Technical Field

[0001] This utility model relates to the field of oil seal installation tooling technology, specifically a guide tooling for oil seal installation. Background Technology

[0002] In the automotive industry, oil seals are widely used, especially in automotive transmissions. They play a crucial role in preventing external dust, sand, liquids, and other contaminants from entering the transmission while also preventing internal oil leakage. However, oil seals are relatively fragile and easily damaged. Misalignment or tilting during assembly can damage the oil seal, reducing its sealing performance and leading to foreign objects entering the transmission or oil leakage, causing other malfunctions. Therefore, the installation process of oil seals is particularly important.

[0003] A Chinese utility model patent (publication number: CN221791688U) discloses an oil seal installation guide fixture, which provides guidance for the oil seal during the oil seal assembly process, ensuring that the oil seal is aligned with the center of the oil seal mounting hole. Simultaneously, it maintains the oil seal end face perpendicular to the axis of the oil seal mounting hole throughout the assembly process, ensuring that the oil seal is not eccentric or tilted during installation and avoiding damage to the oil seal. The rounded corner at the front end of the oil seal press-fitting shaft protects the inner lip of the oil seal, preventing the fixture from wearing down the oil seal.

[0004] Its guiding structure can effectively guide the oil seal to the precise installation position, but it still has significant limitations in the actual press-fitting process:

[0005] Most current tooling only has positioning function, while the pressing process still relies on operators to manually tap or push. This manual-driven method not only leads to a significant increase in workload (especially in batch installation or large-size oil seal scenarios), but also causes multiple quality risks due to the uncontrollability of manual operation: for example, it is difficult for operators to achieve uniform pressing speed, and fluctuations in force can easily cause instantaneous overload deformation of the oil seal lip (such as lip flange or skeleton delamination) or local stress concentration, which in turn leads to early leakage. Therefore, a guiding tooling for oil seal installation is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a guide tool for oil seal installation, so as to solve the problem mentioned in the background art that the reliance on manual driving not only leads to a significant increase in work intensity, but also causes multiple quality risks due to the uncontrollability of manual operation: for example, it is difficult for the operator to achieve uniform pressing speed, and the fluctuation of force can easily cause instantaneous overload deformation of the oil seal lip or local stress concentration, which in turn leads to early leakage.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a guide tooling for oil seal installation, comprising a guide positioning sleeve, wherein a press-fitting component is provided inside the guide positioning sleeve;

[0008] The press-fit assembly includes four guide rails, a press-fit motor, a transmission screw, a drive plate, a connecting rod, a fixed boss, a press-fit plate, and a limit seat;

[0009] The top end of the transmission screw is connected to the output shaft of the press-fitting motor via a coupling. The drive disc is slidably connected to the inner wall of the guide positioning sleeve and threadedly connected to the outer wall of the transmission screw. The drive disc is fixedly connected to the press-fitting plate via a connecting rod. The bottom of the fixed boss is tapered and fixedly connected to the lower surface of the press-fitting plate. The limiting seat is fixedly connected to the bottom end of the transmission screw. The outer wall of the press-fitting plate and the outer wall of the drive disc are both provided with grooves that match the size of the guide rail. The guide rail is symmetrically fixedly connected to the inner wall of the guide positioning sleeve.

[0010] Preferably, the drive disk described above is slidably connected to the outer wall of the guide rail via a groove.

[0011] Preferably, the outer wall of the press-fitting disc is slidably connected to the inner wall of the guide positioning sleeve.

[0012] Preferably, the pressing plate, guide positioning sleeve and fixing boss described above are all coaxially arranged.

[0013] Preferably, the aforementioned limiting seat is located above the pressing plate.

[0014] Preferably, the top of the guide positioning sleeve is fixedly connected to a mounting base by screws, and the press-fitting motor is mounted on the upper surface of the mounting base.

[0015] Preferably, the bottom of the guide positioning sleeve is fixedly connected to a positioning boss, and the lower surface of the positioning boss is fixedly connected to positioning posts distributed in a ring.

[0016] Preferably, the outer side wall of the guide positioning sleeve described above is symmetrically fixedly connected with two handles.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0018] This invention utilizes a press-fitting motor to drive a transmission screw, which in turn drives a drive disc to move downwards along a guide rail. A connecting rod then drives a press-fitting disc, which in turn drives a fixed boss. The fixed boss presses the oil seal into the workpiece, thus achieving the guided press-fitting operation of the oil seal. Compared to existing technologies, this invention achieves automatic press-fitting of the oil seal through the coordinated structure of the press-fitting motor, transmission screw, and drive disc, reducing the workload of workers. Furthermore, during the press-fitting process, the press-fitting disc descends at a uniform speed, ensuring uniform press-fitting of the oil seal and preventing instantaneous overload deformation or localized stress concentration of the oil seal lip due to fluctuations in force. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an exploded view of the press-fit assembly structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the guide rail installation position of this utility model;

[0023] Figure 4 This is a schematic diagram of the guide positioning sleeve structure of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 101, press-fit assembly; 11, guide positioning sleeve; 12, guide rail; 13, press-fit motor; 14, transmission screw; 15, drive disc; 16, slide groove; 17, connecting rod; 18, fixed boss; 19, press-fit disc; 20, mounting base; 21, limit seat; 31, positioning boss; 32, positioning post; 33, handle. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0027] Example

[0028] In existing technologies, relying on manual operation not only leads to a significant increase in workload (especially in batch installation or large-size oil seal scenarios), but also causes multiple quality risks due to the uncontrollability of manual operation: for example, it is difficult for operators to achieve uniform pressing speed, and fluctuations in force can easily cause instantaneous overload deformation of the oil seal lip (such as lip flange or skeleton delamination) or local stress concentration, which in turn leads to early leakage.

[0029] Please see Figures 1-4 The present invention provides a technical solution: a guide tool for oil seal installation, including a guide positioning sleeve 11, and a press-fitting component 101 is provided inside the guide positioning sleeve 11;

[0030] The press assembly 101 includes four guide rails 12, a press motor 13, a transmission screw 14, a drive disc 15, a connecting rod 17, a fixed boss 18, a press disc 19, and a limit seat 21.

[0031] The top end of the transmission screw 14 is connected to the output shaft of the press motor 13 via a coupling. The drive disk 15 is slidably connected to the inner side wall of the guide positioning sleeve 11 and threadedly connected to the outer side wall of the transmission screw 14. The press motor 13 drives the transmission screw 14 to rotate, and the transmission screw 14 drives the drive disk 15 through the thread, thereby realizing the lifting and lowering control of the drive disk 15.

[0032] The press-fit motor 13 is an adjustable speed variable frequency motor, and its electrical terminals are connected to an external power supply through a wire with a switch.

[0033] The drive plate 15 is fixedly connected to the pressing plate 19 via the connecting rod 17. The bottom of the fixed boss 18 is conical and fixedly connected to the lower surface of the pressing plate 19. When the drive plate 15 moves, it drives the pressing plate 19 via the connecting rod 17. The pressing plate 19 drives the fixed boss 18, thereby realizing the guiding pressing operation of the oil seal.

[0034] The outer diameter of the fixed boss 18 is larger than the natural diameter of the inner lip of the oil seal and smaller than the working diameter of the inner lip of the oil seal. This can satisfy the need to tighten the oil seal without causing excessive deformation of the inner lip of the oil seal, thus preventing damage to the oil seal.

[0035] The conical bottom of the fixed boss 18 can be inserted into the inner ring of the oil seal, supporting and straightening the oil seal before the press-fitting begins, preventing it from tilting or the lip from rolling over due to uneven force during the initial press-fitting stage.

[0036] Both the outer wall of the pressing plate 19 and the outer wall of the drive plate 15 are provided with grooves 16 that are adapted to the size of the guide rail 12. The guide rail 12 is symmetrically fixedly connected to the inner side wall of the guide positioning sleeve 11. The drive plate 15 is slidably connected to the outer side wall of the guide rail 12 through the grooves 16. The outer side wall of the pressing plate 19 is slidably connected to the inner side wall of the guide positioning sleeve 11. Through the cooperation of the grooves 16 and the guide rail 12, the drive plate 15 can be accurately guided, ensuring that the drive plate 15 and the pressing plate 19 move only in the vertical direction, thereby effectively preventing the oil seal from shifting or tilting laterally and ensuring that the oil seal can be pressed straight into the workpiece.

[0037] In this embodiment, specifically: the pressing plate 19, the guide positioning sleeve 11, and the fixing boss 18 are all coaxially arranged. The limiting seat 21 is fixedly connected to the bottom end of the transmission screw 14. The limiting seat 21 is located above the pressing plate 19. During the pressing process, the drive plate 15 moves downward along the guide rail 12. The limiting seat 21 can prevent the drive plate 15 from falling off the transmission screw 14. A limiting boss (not shown in the figure) is provided inside the guide positioning sleeve 11 to limit the displacement distance of the drive plate 15, strictly controlling the depth of the oil seal being pressed in and ensuring that all oil seals are installed at the same depth.

[0038] In this embodiment, specifically: the top of the guide positioning sleeve 11 is fixedly connected to the mounting base 20 by screws, the press motor 13 is installed on the upper surface of the mounting base 20, and the mounting base 20 is detachably installed, which facilitates the maintenance of the internal structure of the guide positioning sleeve 11, such as lubricating the transmission screw 14 and the guide rail 12, and cleaning and dusting the inner wall of the guide positioning sleeve 11.

[0039] In this embodiment, specifically: a positioning boss 31 is fixedly connected to the bottom of the guide positioning sleeve 11, and a positioning post 32 distributed in a ring is fixedly connected to the lower surface of the positioning boss 31. When the oil seal is press-fitted, the positioning post 32 is inserted into the flange hole of the workpiece, and the positioning boss 31 contacts the workpiece, thereby limiting the position of the tooling.

[0040] In this embodiment, specifically: the outer side wall of the guide positioning sleeve 11 is symmetrically fixedly connected with two handles 33, which facilitate the carrying of the tooling and ensure the overall stability when pressing the oil seal.

[0041] The working principle or structural principle is as follows: The oil seal is installed from the bottom of the guide positioning sleeve 11, the oil seal is fitted onto the fixed boss 18, and the oil seal is pushed to fit against the pressing plate 19. Then, the positioning pin 32 is aligned and inserted into the flange hole of the workpiece, and the positioning boss 31 contacts the workpiece. At this time, the position of the tooling is limited. The pressing motor 13 is started, and the pressing motor 13 drives the transmission screw 14 to rotate. The transmission screw 14 drives the drive plate 15 through the thread. The drive plate 15 moves downward along the guide rail 12 and drives the pressing plate 19 through the connecting rod 17. The pressing plate 19 drives the fixed boss 18, and the fixed boss 18 presses the oil seal into the workpiece downward, thereby realizing the guiding pressing operation of the oil seal.

[0042] In summary, compared with the prior art, this utility model achieves automatic pressing of oil seals through the cooperation of the pressing motor 13, transmission screw 14, drive disc 15 and other structures, which reduces the labor intensity of workers. Moreover, during the pressing process, the pressing disc 19 can descend at a uniform speed, so as to achieve uniform pressing of the oil seal and avoid the situation of instantaneous overload deformation of the oil seal lip or local stress concentration caused by force fluctuation.

[0043] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A guide fixture for oil seal installation, comprising a guide positioning sleeve (11), characterized in that: The guide positioning sleeve (11) is provided with a press-fit assembly (101) inside; The press assembly (101) includes four guide rails (12), a press motor (13), a transmission screw (14), a drive plate (15), a connecting rod (17), a fixed boss (18), a press plate (19), and a limiting seat (21); The top end of the transmission screw (14) is connected to the output shaft of the press motor (13) via a coupling. The drive disc (15) is slidably connected to the inner wall of the guide positioning sleeve (11) and threadedly connected to the outer wall of the transmission screw (14). The drive disc (15) is fixedly connected to the press disc (19) via a connecting rod (17). The bottom of the fixed boss (18) is conical and fixedly connected to the lower surface of the press disc (19). The limiting seat (21) is fixedly connected to the bottom end of the transmission screw (14). The outer wall of the press disc (19) and the outer wall of the drive disc (15) are both provided with a sliding groove (16) that matches the size of the guide rail (12). The guide rail (12) is symmetrically fixedly connected to the inner wall of the guide positioning sleeve (11).

2. The guide fixture for oil seal installation according to claim 1, characterized in that: The drive disk (15) is slidably connected to the outer wall of the guide rail (12) via a slide groove (16).

3. The guide fixture for oil seal installation according to claim 2, characterized in that: The outer wall of the pressing plate (19) is slidably connected to the inner wall of the guide positioning sleeve (11).

4. A guide fixture for oil seal installation according to claim 3, characterized in that: The pressing plate (19), guide positioning sleeve (11) and fixing boss (18) are all coaxially arranged.

5. A guide fixture for oil seal installation according to claim 1, characterized in that: The limiting seat (21) is located above the pressing plate (19).

6. A guide fixture for oil seal installation according to claim 1, characterized in that: The top of the guide positioning sleeve (11) is fixedly connected to the mounting base (20) by screws, and the press motor (13) is mounted on the upper surface of the mounting base (20).

7. A guide fixture for oil seal installation according to claim 1, characterized in that: The bottom of the guide positioning sleeve (11) is fixedly connected to a positioning boss (31), and the lower surface of the positioning boss (31) is fixedly connected to positioning posts (32) distributed in a ring.

8. A guide fixture for oil seal installation according to claim 7, characterized in that: The outer side wall of the guide positioning sleeve (11) is symmetrically fixedly connected with two handles (33).

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