A manual oil seal pressing tool

Abstract

This utility model belongs to the field of oil seal press-fitting technology, and discloses a manual oil seal press-fitting fixture, including a pressure cap, a fixing member, and a connecting member. The fixing member is nested inside the pressure cap, and the connecting member passes through the pressure cap from top to bottom and is fixedly connected to the fixing member. The pressure cap has a hollow structure. The fixing member moves up and down inside the pressure cap through the connecting member. In the initial state, the fixing member is separated from the connecting member. The connecting member is fitted with a first fastener and a second fastener. The first fastener and the second fastener apply circumferential pressure to the pressure cap to achieve press-fitting. The first pressure cap has several second through holes along the circumference, which effectively reduces the amount of material used while ensuring the overall strength of the pressure cap and the press-fitting function. A sealing member is provided between the first fastener and the pressure cap to ensure the stability and sealing of the entire fixture during use. It eliminates the need to transfer workpieces such as flywheel housings from the main assembly line, reduces the labor intensity of workers, and is suitable for small-batch or multi-model production.

Description

Technical Field

[0001] This utility model belongs to the field of oil seal press-fitting technology, and relates to a manual oil seal press-fitting tool. Background Technology

[0002] In the assembly and production process of power equipment such as automobile engines, the pressing quality of oil seals is directly related to the sealing performance and service life of the assembly. The pressing process requires smoothness, precise alignment, and avoidance of damage to the oil seal lip or the mating surface of the housing.

[0003] Existing oil seal press-fitting methods include two approaches: one involves hoisting or transporting the flywheel housing from the main assembly line to a dedicated press-fitting station, pressing the oil seal, and then transporting it back to the assembly line. While this ensures press-fitting accuracy, the repeated transfer operations increase the labor intensity and workload of workers. Furthermore, the transfer process interrupts the continuous assembly flow, affecting the production cycle of the entire assembly line and hindering efficient, rhythmic mass production. The other approach is hydraulic press-fitting, but for small batches or products with frequent model changes, the return on investment is too low, resulting in poor economic efficiency. Moreover, the pressure generated by hydraulic systems is typically high, leading to poor flexibility. Even slight deviations can easily cause jamming during press-fitting, resulting in poor press-fitting effects such as oil misalignment and lip curling, and potentially damaging the workpiece. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a manual oil seal press-fitting tool.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a manual oil seal press-fitting fixture, including a pressure cap, a fixing member, and a connecting member. The fixing member is nested inside the pressure cap, and the connecting member passes through the pressure cap from top to bottom and is fixedly connected to the fixing member. The pressure cap has a hollow structure, and the fixing member can move up and down inside the pressure cap through the connecting member.

[0006] Furthermore, in the initial state, the fastener is separated from the connector.

[0007] Furthermore, the connector is fitted with a first fastener and a second fastener, the lower end of the first fastener abutting against the pressure cap, and the lower end of the second fastener being fixedly connected to the fixing member.

[0008] Furthermore, a seal is provided between the first fastener and the gland.

[0009] Furthermore, both the pressure cap and the fixing member are provided with a first through hole for fixed connection with the connecting member.

[0010] Furthermore, the pressure cap includes a first pressure cap and a boss disposed on the outer side wall of the first pressure cap, wherein the first pressure cap is fixedly connected to the boss.

[0011] Furthermore, the first pressure cap is provided with a plurality of second through holes along the circumferential direction.

[0012] Furthermore, the end of the connector away from the fixing member has a hexagonal structure.

[0013] Furthermore, the connector is a screw, and the seal is a gasket.

[0014] Furthermore, both the first fastener and the second fastener are nuts.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This utility model discloses a manual oil seal press-fitting fixture. The pressure cover and the fixing part are fixedly connected by a connector. The fixing part moves up and down inside the pressure cover. There is no need to transfer workpieces such as flywheel housing from the main assembly line, which reduces the labor intensity of workers and is suitable for small batch or multi-model production.

[0016] This utility model discloses a manual oil seal press-fitting fixture, which realizes the position adjustment and pressure application of the fixed part by manually rotating the connecting part or the first fastener, without relying on complex power equipment, and is suitable for a variety of working scenarios.

[0017] This utility model discloses a manual oil seal pressing tool. The first pressure cap is provided with several second through holes along the circumference, which effectively reduces the amount of material used while ensuring the overall strength of the pressure cap and the pressing function.

[0018] This utility model discloses a manual oil seal pressing fixture. The connecting part is threadedly connected to the first fastener, which can accurately determine the movement distance of the fixing part, ensure the consistency of the oil seal pressing depth, and improve the pressing quality.

[0019] This utility model discloses a manual oil seal press-fitting fixture. A sealing element is provided between the first fastener and the pressure cap to enhance the sealing performance of the connection between the fastener and the pressure cap, prevent external impurities from entering the fixture during the press-fitting process, and avoid leakage of lubricating oil and other substances that may exist inside the fixture, thus ensuring the normal service life and safety of the fixture. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a manual oil seal pressing tool before pressing, according to this utility model. Figure 2 This is a schematic diagram of the structure of a manual oil seal press-fitting tool according to the present invention after press-fitting.

[0021] Figure label: 1-Gland; 2-Fixing component; 3-Connecting component; 31-First fastener; 32-Second fastener; 4-Sealing component. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] This utility model discloses a manual oil seal pressing fixture, comprising a pressure cap 1, a fixing member 2, and a connecting member 3. The fixing member 2 is nested inside the pressure cap 1, and the connecting member 3 passes through the pressure cap 1 from top to bottom and is fixedly connected to the fixing member 2. The pressure cap 1 has a hollow structure, and the fixing member 2 can move up and down within the pressure cap 1 via the connecting member 3. A first fastener 31 and a second fastener 32 are fitted onto the connecting member 3. The lower end of the first fastener 31 abuts against the pressure cap 1, and the lower end of the second fastener 32 is fixedly connected to the fixing member 2. The connections between the components are reliable and easy to disassemble and maintain, reducing manufacturing costs and allowing for flexible adjustments according to the pressing requirements of oil seals of different specifications, making it highly adaptable.

[0024] Specifically, the manual oil seal press-fit fixture mainly consists of a gland 1, a fixing part 2, and a connecting part 3. The fixing part 2 moves up and down inside the gland 1 to achieve oil seal press-fit. The gland 1 and the fixing part 2 are connected by the connecting part 3. The connecting part 3 is fitted with a first fastener 31 and a second fastener 32. The first fastener 31 and the second fastener 32 apply circumferential pressure to the gland 1 to achieve press-fit. A sealing part 4 is provided between the first fastener 31 and the gland 1 to ensure the stability and sealing of the entire fixture during use.

[0025] The gland 1 has a hollow structure, providing space for the fastener 2 to move up and down, such as... Figure 1 As shown, the gland 1 consists of a first gland and a boss. The boss is fixedly mounted on the outer wall of the first gland, serving two purposes: firstly, to enhance the radial structural strength of the first gland and prevent deformation of the side wall due to excessive force during pressing; and secondly, to provide a convenient gripping point for the operator, allowing them to hold the boss with both hands during pressing to ensure the overall fixture does not shake, further improving pressing stability. Specifically, the pressing depth of the oil seal is limited by controlling dimension C. Pressing is completed when surface D contacts the housing. The bottom end of gland 1, surface E, is used to contact the oil seal. The fixing member 2 is positioned by engaging with a shaft that mates with the housing via ФA. Gland 1 is positioned by engaging with the oil seal via ФB.

[0026] The first pressure cap has several second through holes along its circumference. The size of the second through holes can be designed according to actual usage requirements to reduce the weight of the pressure cap 1, i.e., to reduce weight. In addition, the pressure cap 1 is provided with a first through hole, which matches the first through hole on the connector 3 for fixed connection with the connector 3.

[0027] In its initial state, the fastener 2 is separate from the connector 3. Specifically, the fastener 2 is nested inside the hollow structure of the gland 1, and directly contacts the oil seal during the press-fitting process, transmitting pressure to the oil seal to complete the press-fitting. Figure 1 As shown, in the initial state, the fixing part 2 and the connecting part 3 are separated, facilitating preliminary adjustment of the position of the fixing part 2 before press-fitting. When press-fitting is required, the connecting part 3 is connected to the fixing part 2, allowing the fixing part 2 to move up and down within the gland 1, thereby controlling the press-fitting depth and force of the oil seal. The structure after press-fitting is as follows. Figure 2 As shown.

[0028] The connector 3 passes through the pressure cap 1 and is fixedly connected to the fixing member 2. By rotating the connector 3 or the first fastener 31, it is fixedly connected to the fixing member 2. The end of the connector 3 away from the fixing member 2 has a hexagonal structure, facilitating the operator to apply torque to drive the connector 3. In this embodiment, the connector 3 is a screw, and the threaded structure of the screw cooperates with the first fastener 31, enabling precise control of the movement distance of the fixing member 2 and further improving the pressing accuracy.

[0029] Both the first fastener 31 and the second fastener 32 are fitted onto the connector 3. The lower end of the first fastener 31 abuts against the pressure cap 1. By tightening the first fastener 31, the position of the connector 3 relative to the pressure cap 1 can be fixed, preventing the connector 3 from loosening during the pressing process. The lower end of the second fastener 32 is fixedly connected to the fixing member 2, transmitting the power of the connector 3 to the fixing member 2. When the connector 3 is rotated, the second fastener 32 can drive the fixing member 2 to move up and down synchronously. In this embodiment, both the first fastener 31 and the second fastener 32 are nuts. The first fastener 31 and the second fastener 32 cooperate with the connector 3, ensuring a reliable connection and facilitating operation.

[0030] The sealing element 4 is disposed between the first fastener 31 and the gland 1. Its main function is to enhance the sealing performance of the connection between the two, prevent external impurities from entering the tooling during the pressing process, and avoid leakage of lubricating oil and other substances that may be present inside the tooling, thus ensuring the normal service life and safety of the tooling. In this embodiment, the sealing element 4 is a gasket, which has the characteristics of simple structure, convenient installation, and good sealing effect, and can effectively adapt to the connection structure between the first fastener 31 and the gland 1.

[0031] In summary, the pressure cap 1 and the fixing part 2 are fixedly connected by the connector 3. The fixing part 2 can move up and down inside the pressure cap 1, eliminating the need to transfer workpieces such as flywheel housing from the main assembly line, reducing the labor intensity of workers, and making it suitable for small batch or multi-model production.

[0032] The method of using the manual oil seal press-fitting fixture of this utility model is as follows: First, the fastener 2 is nested into the hollow structure of the gland 1, ensuring that the fastener 2 can move freely within the gland 1 without jamming. The connector 3 is then passed through the first through hole on the gland 1 from top to bottom, extending its lower end into the gland 1 and aligning it with the fastener 2. A first fastener 31 is fitted onto the upper part of the connector 3 on the gland 1, and a seal 4 is placed between the first fastener 31 and the gland 1. The seal 4 prevents external dust, iron filings, coolant, and other impurities from entering the tooling during the pressing operation, avoiding impurities adhering to the threads of the connector 3 or the movement gaps of the fastener 2, preventing wear and jamming, and ensuring the smooth up-and-down movement of the fastener 2 within the gland 1, indirectly improving the stability and accuracy of the oil seal pressing. Furthermore, it prevents potential lubricant leakage within the tooling, reducing the risk of component corrosion, extending the service life of core components such as the gland and connector, reducing the frequency and cost of tooling maintenance, and ensuring continuous and stable operation in scenarios such as automotive engine oil seal pressing.

[0033] The second fastener 32 is fitted onto the connector 3, located at the lower end inside the gland 1. The connector 3 or the first fastener 31 is tightened to connect the lower end of the connector 3 with the fixing part 2, completing the assembly. After assembly, according to the specifications and pressing requirements of the oil seal to be pressed, the hexagonal structure of the connector 3 is rotated to adjust the initial position of the fixing part 2 inside the gland 1, so that the lower end of the fixing part 2 matches the contact position of the oil seal to be pressed; until the D surface of the gland contacts the housing to complete the pressing action, the loosening process is to loosen the connector 3 in the reverse direction until the second fastener 32 separates from the fixing part 2, and then the fixing part 2 is removed, completing the entire pressing process.

[0034] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as open-ended, meaning equivalent to "containing at least...", and not as closed-ended, meaning "only containing...". Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

Claims

1. A manual oil seal pressing tool, characterized in that: comprising a pressing cap (1), a fixing part (2) and a connecting part (3), the fixing part (2) is nested in the pressing cap (1), the connecting part (3) is fixedly connected with the fixing part (2) from top to bottom through the pressing cap (1), the pressing cap (1) is a hollow structure, and the fixing part (2) moves up and down in the pressing cap (1) through the connecting part (3).

2. The manual oil seal pressing tool according to claim 1, characterized in that: the fixing part (2) is in a separated state with the connecting part (3) in an initial state.

3. The manual oil seal pressing tool according to claim 2, characterized in that: a first fastener (31) and a second fastener (32) are sleeved on the connecting part (3), the lower end of the first fastener (31) abuts against the pressing cap (1), and the lower end of the second fastener (32) is fixedly connected with the fixing part (2).

4. The manual oil seal pressing tool according to claim 3, characterized in that: a sealing part (4) is arranged between the first fastener (31) and the pressing cap (1).

5. The manual oil seal pressing tool according to claim 1, characterized in that: first through holes are arranged on the pressing cap (1) and the fixing part (2) for fixed connection with the connecting part (3).

6. The manual oil seal pressing tool according to claim 1, characterized in that: the pressing cap (1) comprises a first pressing cap and a boss arranged on the outer sidewall of the first pressing cap, and the first pressing cap is fixedly connected with the boss.

7. The manual oil seal pressing tool according to claim 6, characterized in that: the first pressing cap is provided with a plurality of second through holes in the circumferential direction.

8. The manual oil seal pressing tool according to claim 1, characterized in that: the end of the connecting part (3) away from the fixing part (2) is a hexagonal structure.

9. The manual oil seal pressing tool according to claim 4, characterized in that: the connecting part (3) is a screw rod, and the sealing part (4) is a gasket.

10. The manual oil seal pressing tool according to claim 3, characterized in that: the first fastener (31) and the second fastener (32) are both nuts. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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