Anti-deviation positioning oil seal assembly tool

By designing an anti-deviation positioning oil seal assembly fixture and utilizing the linkage structure of the support frame and expansion components, precise positioning and stable assembly of the oil seal are achieved, solving the problems of low assembly efficiency and large error in existing oil seal technologies, and improving assembly quality and stability.

CN120941332APending Publication Date: 2025-11-14KUNSHAN KENBO SEALING SCI & TECH
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Patent Information

Application Number
CN202511286396.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing oil seal assembly methods are inefficient, have large assembly errors, and are prone to damaging the oil seals. In particular, problems such as eccentricity, misalignment, and deformation can easily occur during the assembly of complex or large oil seal products, leading to a decrease in sealing performance.

Method used

An anti-deviation positioning oil seal assembly fixture was designed. Through the linkage structure of the support frame, drive cylinder and expansion component, the oil seal is accurately positioned and stably assembled. The fixture includes a sliding plate, push plate, contact head, expansion component, etc., to ensure that the oil seal is not eccentric or tilted during the assembly process, and to provide uniform support and buffer.

Benefits of technology

It improves the stability and efficiency of oil seal assembly, avoids eccentricity, misalignment and damage during the assembly process, and enhances assembly quality and consistency. It is suitable for the efficient assembly of oil seals of various specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of oil seal assembly tools, and discloses an anti-deviation positioning oil seal assembly tool which comprises a supporting frame, a console is arranged on one side of the supporting frame, a placing frame is arranged at the top of the supporting frame, a side supporting plate is arranged on one side of the placing frame, and a sliding plate is arranged at the bottom of a pushing plate. A second driving air cylinder is arranged on one side of the side supporting plate, a set of first moving rails are arranged on the containing frame, a sliding plate is arranged on the first moving rails in a sliding mode, a set of sliding blocks are arranged on the sliding plate, an assembling shell is placed in the sliding blocks, an oil seal body is arranged on the assembling shell, and a containing assembly is arranged on the sliding plate. A group of placing tables are arranged on one side of the side supporting plate, and expansion assemblies are placed in the placing tables; the placing assembly is used for fixing the assembling shell when the assembling shell is assembled; and the expansion assembly is used for expanding and fixing when the oil seal body is assembled. Compared with the prior art, the assembling quality and efficiency are improved.
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Description

Technical Field

[0001] This invention relates to the field of oil seal assembly tooling technology, specifically to an anti-deviation positioning oil seal assembly tooling. Background Technology

[0002] Oil seals, as important sealing elements in mechanical equipment, are widely used in automobiles, construction machinery, hydraulic equipment and various industrial transmission devices. They are mainly used to prevent lubricating oil leakage and to prevent external impurities such as dust and water vapor from entering the bearings or moving parts, thereby ensuring the stable operation of the equipment.

[0003] Currently, oil seal assembly is mainly done manually or with simple assembly fixtures. This method is relatively primitive, resulting in low efficiency and a high dependence on the experience and skill level of the operators. This manual or semi-automated assembly method has several problems. First, due to the lack of precise guiding and positioning structures, oil seals are prone to misalignment and other positioning errors during assembly, leading to uneven force on the lip or misalignment during pressing, thus affecting sealing performance and even causing premature failure. Second, oil seals are usually made of elastic materials. If uneven force, incorrect orientation, or excessively fast pressing occurs during assembly, the oil seal is easily deformed, damaged, or even curled or torn, increasing rework rates and scrap costs. Especially for oil seal products with relatively complex structures or large diameters, the requirements for assembly stability are even higher. Due to the large volume and wide contact surface of the oil seal, it is prone to axial slippage or radial deflection during compression without effective fixing or cushioning measures. This can lead to problems such as loose fit or incomplete pressing. Traditional fixtures often lack expansion support or flexible cushioning structures, making it difficult to provide effective support for the oil seal body on the inner diameter, outer diameter, and bottom surface simultaneously. The instability that occurs during assembly further amplifies assembly errors, affecting product consistency and quality control. Therefore, this application discloses an anti-deviation positioning oil seal assembly fixture that can effectively expand and support the oil seal and has an anti-deviation function. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an anti-deviation positioning oil seal assembly fixture, which effectively avoids problems such as eccentricity, skewing, and damage during the oil seal assembly process. It solves the problems of low efficiency, large assembly errors, and easy damage to the oil seal during the assembly process in existing assembly methods.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-deviation positioning oil seal assembly fixture, comprising a support frame, a control panel on one side of the support frame, a placement frame on the top of the support frame, a side support plate on one side of the placement frame, a support upright plate on the other side of the placement frame, a first driving cylinder on the support upright plate, a push plate at the output end of the first driving cylinder, a set of contact heads on the push plate, a sliding plate at the bottom of the push plate, a second driving cylinder on one side of the side support plate, the output end of the second driving cylinder contacting the sliding plate, a set of first moving tracks on the placement frame, the sliding plate slidably disposed on the first moving tracks, a set of sliding blocks on the sliding plate, an assembly shell placed inside the sliding blocks, an oil seal body disposed on the assembly shell, and a placement assembly on the sliding plate; a placement platform on one side of the side support plate, an expansion assembly placed inside the placement platform; the placement assembly is used to fix the assembly shell during assembly; the expansion assembly is used to expand and fix the oil seal body during assembly.

[0008] Preferably, the placement assembly includes a set of limiting plates disposed on the sliding plate, a second moving track disposed on the sliding plate, a plurality of sliding blocks disposed on the second moving track, the top of the sliding blocks being connected to the push plate, a limiting plate disposed on one of the sliding blocks, a contact plate disposed on one side of the limiting plate, and a contact head disposed on one side of the push plate, the contact head being able to contact one side of the assembly housing.

[0009] Preferably, the expansion assembly includes a mounting plate disposed within the placement platform, a movable rod passing through the mounting plate, a contact plate at one end of the movable rod, multiple sets of connecting rods on one side of the contact plate, a movable plate at one end of the connecting rod, multiple sets of second deflection arms on the movable plate, a first deflection arm on each of the second deflection arms, a hollow tube at one end of each first deflection arm, the movable rod slidably disposed within the hollow tube, a contact arc plate at the top of one end of each second deflection arm, a contact protrusion on one side of the bottom of the contact arc plate, and multiple sets of contact grooves on one side of the contact arc plate.

[0010] Preferably, the limiting plate has an arc-shaped opening on one side, and the contact plate also has an arc-shaped opening. Both the contact plate and the limiting plate are adapted to the assembly housing on one side.

[0011] Preferably, a protrusion is provided on one side of the assembly housing, and the protrusion is used to place the oil seal body.

[0012] Preferably, the contact arc plate is in contact with the inner wall of the oil seal body, and the contact protrusion plate is in contact with the bottom of the oil seal body.

[0013] Preferably, a rotating rod is provided on one side of the bottom of the limiting plate, and a driving plate is provided on the rotating rod. The driving plate is curved and one end of the driving plate is in contact with the assembly housing. A deflection plate is also provided on the rotating rod, and a contact pad is provided on the deflection plate. Multiple sets of telescopic holes are formed through the surface of the contact pad, and the contact pad is made of rubber.

[0014] Preferably, the hollow tube is provided with multiple sets of contact arc plates, one end of the contact arc plate is provided on the mounting plate, the moving rod is sleeved with a buffer spring, one end of the buffer spring is provided on one side of the mounting plate, the other end of the buffer spring is provided inside the hollow tube, and the moving rod is a telescopic structure.

[0015] Preferably, a mounting block is provided on one side of the second deflection arm, and a guide rod is provided on the mounting block. The guide rod is a telescopic structure, and a connecting plate is provided at one end of the guide rod. One end of the connecting plate is provided on the contact protrusion plate, and a support spring is sleeved on the guide rod. One end of the support spring is provided on one side of the mounting block, and the other end of the support spring is provided on one side of the connecting plate.

[0016] Preferably, the other end of the movable rod is provided with a pull ring.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an anti-deviation positioning oil seal assembly tooling, which has the following beneficial effects: 1. This anti-deviation positioning oil seal assembly fixture, during assembly, places the assembly shell and oil seal body sequentially into the sliding block and placement component on the sliding plate. A first drive cylinder drives the push plate to move, causing the contact head to axially press the oil seal body, ensuring stable assembly. The sliding plate slides on the first moving track, and its position is adjusted by a second drive cylinder, thus precisely aligning the assembly position and avoiding misalignment or eccentricity. Simultaneously, the placement platform on the side support plate is used to fix the expansion component. The expansion component applies an expansion force to the oil seal body, improving its fit with the assembly shell and ensuring coaxiality and tightness during oil seal assembly. The sliding structure with linkage control of the first and second drive cylinders and the adjustable expansion component effectively prevent eccentricity, tilting, and damage during oil seal body assembly. The cooperation between the sliding plate and the first moving track improves assembly stability, and the contact head on the push plate can apply force evenly, improving assembly quality and efficiency. Furthermore, this fixture is easy to operate, suitable for the precise assembly of oil seals of various specifications, and has good practicality and industrial promotion value.

[0019] 2. This anti-deviation positioning oil seal assembly fixture utilizes a second moving track and multiple sets of sliding blocks on a sliding plate to achieve flexible movement and adjustment of contact components during assembly. One set of sliding blocks features a limiting plate and a contact plate, both with arc-shaped openings to adapt to the outer side of the assembly housing, providing stable positioning and support. When the push plate drives the contact head to press the assembly housing, the rotating rod at the bottom of the limiting plate drives the drive plate to rotate, thus pushing the assembly housing more stably into the limiting range. Simultaneously, the deflection plate on the rotating rod provides a buffering effect through the contact pad, and the expansion holes on the contact pad further enhance elasticity. This achieves stable positioning and flexible fit of the assembly housing, effectively avoiding problems such as eccentricity, slippage, and uneven local stress during assembly. The drive plate and deflection plate form a linked structure, which, combined with the buffering and energy absorption effect of the contact pad, makes the pressing process more stable and controllable. It is suitable for high-efficiency, high-quality automated or semi-automated oil seal assembly applications.

[0020] 3. This anti-deviation positioning oil seal assembly fixture, by setting a mounting plate inside the placement platform and slidingly mounting a telescopic movable rod on the mounting plate, forms an expanded structural assembly for positioning and supporting the oil seal body. The movable rod can reciprocate axially on the mounting plate, and one end of it is fixedly connected to a contact plate. The contact plate, as the driving end component, is flexibly connected to the movable plate through multiple sets of connecting rods, ensuring that the movable rod can synchronously drive the movable plate to move smoothly. Multiple sets of second deflection arms are symmetrically mounted on the movable plate, and the other end of each second deflection arm is connected to a first deflection arm. The end of each first deflection arm is provided with a hollow tube. A multi-segment linkage transmission structure is formed. Under the push of the moving rod, the linkage structure enables the deflection arms of each stage to deflect synchronously through the force transmission of the contact plate and transmit the motion to the contact arc plate on the hollow tube. The contact arc plate is distributed in an arc shape and is evenly distributed along the outer side of the hollow tube. Its outer edge structure can precisely fit with the inner wall of the oil seal body, providing radial limiting and expansion support. At the same time, the bottom of the contact arc plate is provided with a contact protrusion plate, which can abut against the bottom of the oil seal body to achieve axial support. Thus, it provides stable and uniform internal support force during the oil seal assembly process, effectively preventing assembly deviations or damage to the oil seal caused by deformation or uneven pressure.

[0021] 4. This anti-deviation positioning oil seal assembly fixture features multiple contact grooves on the contact arc plate. This structure releases compressed air or excess medium during expansion, improving sealing and compliance during bonding and preventing localized pressure buildup that could deform the oil seal. To further enhance the device's flexible response during expansion, a buffer spring is installed between the hollow tube and the mounting plate. One end of the buffer spring is fixed to the mounting plate, and the other end is located inside the hollow tube. When the moving rod pushes the expansion structure, the buffer spring provides appropriate rebound and buffering force, absorbing some of the impact load and ensuring the oil seal body remains stable during assembly. In addition to ensuring safety and assembly precision, the movable rod features a telescopic structure with a pull ring at the other end. The operator can manually pull the pull ring or use an external drive mechanism to open and close the expansion assembly. This facilitates pre-expansion and positioning of the oil seal body before assembly and allows for rapid release of support force after assembly, enabling quick reset and multiple cycles of use. Through the coordinated operation of the above structures, the expansion assembly not only effectively achieves precise radial and axial expansion and positioning of the oil seal body during assembly but also improves the stability, safety, and efficiency of the assembly process, making it suitable for assembling oil seals of various specifications.

[0022] 5. This anti-deviation positioning oil seal assembly fixture, when the expansion structure operates, allows the guide rod to axially extend and retract under contact pressure, while the support spring provides elastic support force, enabling the contact convex plate to flexibly conform to the bottom of the oil seal body. This achieves a more stable and buffered support effect, avoiding deformation or damage to the oil seal caused by rigid pressure. By adding a mounting block, guide rod, and support spring to the second deflection arm, the conformity of the contact convex plate can be effectively improved, allowing it to contact the bottom of the oil seal body more stably during oil seal assembly, reducing impact force and improving assembly stability. At the same time, the telescopic structure of the guide rod and the elastic response of the support spring can automatically adjust the support force under different assembly conditions, improving structural adaptability and service life. It has good protection and practicality, and is particularly suitable for oil seal product production lines with high assembly quality requirements. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional first-view structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional second-view structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional assembly structure of the oil seal body and the assembly shell of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the component placement in this invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the extended component of the present invention; Figure 6 This is a schematic diagram of the three-dimensional cross-section of the hollow tube of the present invention; Figure 7 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 8 For the present invention Figure 5 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Support frame; 2. Control panel; 3. Placement rack; 4. Side support plate; 5. Support upright plate; 6. First drive cylinder; 7. Push plate; 8. Contact head; 9. First moving track; 10. Second drive cylinder; 11. Sliding plate; 12. Second moving track; 13. Sliding block; 14. Contact plate; 15. Limiting plate; 16. Assembly shell; 17. Protrusion; 18. Oil seal body; 19. Rotating rod; 20. Drive plate; 21. 21. Deflection plate; 22. Contact pad; 23. Telescopic hole; 24. Placement platform; 25. Mounting plate; 26. Moving rod; 27. Pull ring; 28. Hollow tube; 29. ​​Buffer spring; 30. First deflection arm; 31. Second deflection arm; 32. Moving disk; 33. Connecting rod; 34. Contact disk; 35. Contact arc plate; 36. Contact protrusion plate; 37. Contact groove; 38. Mounting block; 39. Guide rod; 40. Support spring; 41. Connecting plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0026] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes an anti-offset positioning oil seal assembly tooling.

[0027] In one typical implementation of this application, such as Figures 1-8 As shown, an anti-deviation positioning oil seal assembly fixture includes a support frame 1, a control panel 2 on one side of the support frame 1, a placement frame 3 on the top of the support frame 1, a side support plate 4 on one side of the placement frame 3, and a support upright plate 5 on the other side of the placement frame 3. A first drive cylinder 6 is mounted on the support upright plate 5, a push plate 7 is mounted at the output end of the first drive cylinder 6, a set of contact heads 8 are mounted on the push plate 7, and a sliding plate 11 is mounted at the bottom of the push plate 7. A second drive cylinder 10 is mounted on one side of the side support plate 4, and the output end of the second drive cylinder 10 is connected to the sliding plate 11. The plates 11 are in contact with each other. A set of first moving rails 9 are provided on the placement rack 3. The sliding plate 11 is slidably placed on the first moving rails 9. A set of sliding blocks 13 are provided on the sliding plate 11. An assembly housing 16 is placed inside the sliding blocks 13. An oil seal body 18 is provided on the assembly housing 16. A placement assembly is provided on the sliding plate 11. A set of placement platforms 24 is provided on one side of the side support plate 4. An expansion assembly is placed inside the placement platform 24. The placement assembly is used to fix the assembly housing 16 when it is assembled. The expansion assembly is used to expand and fix the oil seal body 18 when it is assembled. During assembly, the housing 16 and the oil seal body 18 are sequentially placed in the sliding block 13 and placement assembly on the sliding plate 11. The first drive cylinder 6 drives the push plate 7 to move, causing the contact head 8 to axially press the oil seal body 18, ensuring stable assembly. The sliding plate 11 slides on the first moving track 9, and its position is adjusted by the second drive cylinder 10 to accurately align the assembly position and avoid misalignment or eccentricity. At the same time, the placement platform 24 on the side support plate 4 is used to fix the expansion assembly. The expansion assembly applies an expansion force to the oil seal body 18, improving... Its fit with the housing 16 ensures coaxiality and tightness during the oil seal assembly process. The sliding structure and adjustable expansion assembly, controlled by the linkage of the first and second drive cylinders 6 and 10, effectively prevent eccentricity, misalignment, and damage during the assembly of the oil seal body 18. The cooperation between the sliding plate 11 and the first moving track 9 improves assembly stability, and the contact head 8 on the pushing plate 7 applies force evenly, enhancing assembly quality and efficiency. Furthermore, this tooling is easy to operate and suitable for the precise assembly of oil seals of various specifications, possessing excellent practicality and industrial application value.

[0028] As a preferred embodiment of this example, please refer to the appendix. Figure 1 , Figure 2 and Figure 4 The placement assembly includes a set of limiting plates 15 disposed on a sliding plate 11. A second moving track 12 is disposed on the sliding plate 11, and multiple sets of sliding blocks 13 are disposed on the second moving track 12. The top of the sliding blocks 13 is connected to a push plate 7. A limiting plate 15 is disposed on one side of the limiting plate 15, and a contact plate 14 is disposed on one side of the push plate 7. The contact head 8 can contact one side of the assembly housing 16. The limiting plate 15 is provided with an arc-shaped opening on one side, and the contact plate 14 is also provided with an arc-shaped opening. One side of both the contact plate 14 and the limiting plate 15 is adapted to the assembly housing 16. A rotating rod 19 is disposed on one side of the bottom of the limiting plate 15, and a drive plate 20 is disposed on the rotating rod 19. The drive plate 20 is bent, and one end of the drive plate 20 contacts the assembly housing 16. The rotating rod 19 is also provided with a deflection plate 21, and a contact pad 22 is provided on the deflection plate 21. Multiple sets of telescopic holes 23 are opened through the surface of the contact pad 22, and the contact pad 22 is made of rubber. The second moving track 12 and multiple sets of sliding blocks 13, which are set on the sliding plate 11, enable flexible movement and adjustment of the contact parts during the assembly process. One set of sliding blocks 13 is equipped with a limiting plate 15 and a contact plate 14, both of which have an arc-shaped opening structure to adapt to the outside of the assembly housing 16, and play a role in stabilizing, limiting and supporting. When the push plate 7 drives the contact head 8 to press the assembly housing 16, the rotating rod 19 at the bottom of the limiting plate 15 drives the drive plate 20 to rotate, thereby pushing the assembly housing 16 more stably into the limiting range. At the same time, the deflection plate 21 on the rotating rod 19 achieves a buffering effect through the contact pad 22, and the expansion hole 23 on the contact pad 22 further enhances the elasticity and adaptability. This achieves stable limiting and flexible fitting of the assembly housing 16, effectively avoiding problems such as eccentricity, slippage and uneven local force during the assembly process. The drive plate 20 and the deflection plate 21 form a linkage structure, which, together with the buffering and energy absorption effect of the contact pad 22, makes the pressing process more stable and controllable. It is suitable for high-efficiency, high-quality automated or semi-automated assembly application scenarios of oil seals.

[0029] As a preferred embodiment of this example, please refer to the appendix. Figure 1 , Figure 2 , Figure 5 and Figure 6 The expansion assembly includes a mounting plate 25 disposed within a placement platform 24. A movable rod 26 passes through the mounting plate 25. A contact plate 34 is disposed at one end of the movable rod 26. Multiple sets of connecting rods 33 are disposed on one side of the contact plate 34. A movable plate 32 is disposed at one end of the connecting rods 33. Multiple sets of second deflection arms 31 are disposed on the movable plate 32. A first deflection arm 30 is disposed on the second deflection arm 31. A hollow tube 28 is disposed at one end of the first deflection arm 30. The movable rod 26 is slidably disposed within the hollow tube 28. A contact arc plate 35 is disposed at the top of one end of the second deflection arm 31. A contact protrusion 36 is disposed on one side of the bottom of the contact arc plate 35. Multiple sets of contact grooves 37 are provided on one side of the 35; a protrusion 17 is provided on one side of the housing 16, the protrusion 17 is used to place the oil seal body 18; the contact arc plate 35 contacts the inner wall of the oil seal body 18, and the contact protrusion 36 can contact the bottom of the oil seal body 18; multiple sets of contact arc plates 35 are provided on the hollow tube 28, one end of the contact arc plate 35 is provided on the mounting plate 25, a buffer spring 29 is sleeved on the moving rod 26, one end of the buffer spring 29 is provided on one side of the mounting plate 25, and the other end of the buffer spring 29 is provided inside the hollow tube 28, the moving rod 26 is a telescopic structure; a pull ring 27 is provided at the other end of the moving rod 26. By setting an mounting plate 25 inside the placement platform 24 and sliding a telescopic movable rod 26 on the mounting plate 25, an expansion structure assembly for positioning and supporting the oil seal body 18 is formed. The movable rod 26 can reciprocate axially on the mounting plate 25. One end of the rod is fixedly connected to a contact plate 34, which serves as a drive end component. A flexible connection is formed between the contact plate 34 and the movable plate 32 through multiple sets of connecting rods 33, ensuring that the movable rod 26 can synchronously drive the movable plate 32 to move smoothly. Multiple sets of second deflection arms 31 are symmetrically installed on the movable plate 32. The other end of the second deflection arm 31 is connected to the first deflection arm 30. The end of the first deflection arm 30 is provided with a hollow tube 28. This forms a multi-segment linkage transmission structure. Under the push of the moving rod 26, the linkage structure transmits force through the contact plate 34, enabling the deflection arms at each stage to deflect synchronously and transmit the motion to the contact arc plate 35 on the hollow tube 28. The contact arc plate 35 is arc-shaped and evenly distributed along the outer side of the hollow tube 28. Its outer edge structure can precisely fit with the inner wall of the oil seal body 18, providing radial limiting and expansion support effects. At the same time, the bottom of the contact arc plate 35 is provided with a contact protrusion 36, which can abut against the bottom of the oil seal body 18 to achieve axial support, thereby providing stable and uniform internal support force during the oil seal assembly process, effectively preventing assembly deviations or damage to the oil seal caused by deformation or uneven pressure. Furthermore, multiple sets of contact grooves 37 are formed on the contact arc plate 35. This structure can release compressed air or excess medium during expansion, improving the sealing and compliance during bonding and preventing local pressure accumulation from causing oil seal deformation. To further enhance the flexible response capability of the device during expansion, a buffer spring 29 is provided between the hollow tube 28 and the mounting plate 25. One end of the buffer spring 29 is fixed to the mounting plate 25, and the other end is located inside the hollow tube 28. When the moving rod 26 pushes the expansion structure, the buffer spring 29 can provide appropriate rebound force and buffering force to absorb part of the impact load and ensure the oil seal body 18 during assembly. In addition to ensuring safety and assembly accuracy, the movable rod 26 is designed with a telescopic structure, and its other end is equipped with a pull ring 27. The operator can manually pull the pull ring 27 or cooperate with an external drive mechanism to realize the opening and closing operation of the expansion component. This facilitates the pre-expansion and positioning of the oil seal body 18 before assembly, and also facilitates the rapid release of support force after assembly, enabling quick reset and multiple cycles of use. Through the coordinated work of the above structures, the expansion component can not only effectively realize the radial and axial precise expansion and positioning of the oil seal body 18 during the assembly process, but also improve the stability, safety and efficiency of the assembly process, and is suitable for the assembly operation of oil seals of various specifications.

[0030] As a preferred embodiment of this example, please refer to the appendix. Figure 5 and Figure 8A mounting block 38 is provided on one side of the second deflection arm 31. A guide rod 39 is provided on the mounting block 38. The guide rod 39 is a telescopic structure. A connecting plate 41 is provided at one end of the guide rod 39. One end of the connecting plate 41 is provided on the contact protrusion 36. A support spring 40 is sleeved on the guide rod 39. One end of the support spring 40 is provided on one side of the mounting block 38, and the other end of the support spring 40 is provided on one side of the connecting plate 41. When the expansion structure operates, the guide rod 39 can axially extend and retract under contact pressure, and the support spring 40 provides elastic support force, allowing the contact convex plate 36 to flexibly fit against the bottom of the oil seal body 18, thereby achieving a more stable and buffered support effect and avoiding deformation or damage to the oil seal caused by rigid pressure. By adding the mounting block 38, guide rod 39 and support spring 40 to the second deflection arm 31, the fit compliance of the contact convex plate 36 can be effectively improved, making it more stable in contact with the bottom of the oil seal body 18 during oil seal assembly, reducing impact force and improving assembly stability. At the same time, the telescopic structure of the guide rod 39 and the elastic response of the support spring 40 can automatically adjust the support force under different assembly conditions, improving structural adaptability and service life, and providing good protection and practicality. It is particularly suitable for oil seal product production lines with high assembly quality requirements.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-deviation positioning oil seal assembly tooling, comprising a support frame (1), characterized in that: A control panel (2) is provided on one side of the support frame (1), a placement rack (3) is provided on the top of the support frame (1), a side support plate (4) is provided on one side of the placement rack (3), a support plate (5) is provided on the other side of the placement rack (3), a first drive cylinder (6) is provided on the support plate (5), a push plate (7) is provided at the output end of the first drive cylinder (6), a set of contact heads (8) is provided on the push plate (7), a sliding plate (11) is provided at the bottom of the push plate (7), a second drive cylinder (10) is provided on one side of the side support plate (4), and the first... The output end of the second drive cylinder (10) is in contact with the sliding plate (11). A set of first moving rails (9) is provided on the placement frame (3). The sliding plate (11) is slidably placed on the first moving rails (9). A set of sliding blocks (13) is provided on the sliding plate (11). An assembly shell (16) is placed inside the sliding block (13). An oil seal body (18) is provided on the assembly shell (16). A placement component is provided on the sliding plate (11). A set of placement platforms (24) is provided on one side of the side support plate (4). An expansion component is placed inside the placement platform (24). The placement component is used to fix the assembly housing (16) during assembly; The expansion assembly is used to expand and fix the oil seal body (18) during assembly.

2. The anti-deviation positioning oil seal assembly tooling according to claim 1, characterized in that: The placement assembly includes a set of limiting plates (15) disposed on the sliding plate (11), a second moving track (12) disposed on the sliding plate (11), a plurality of sliding blocks (13) disposed on the second moving track (12), the top of the sliding blocks (13) being connected to the push plate (7), a limiting plate (15) disposed on one of the sliding blocks (13), a contact plate (14) disposed on one side of the limiting plate (15), a contact head (8) disposed on one side of the push plate (7), and the contact head (8) being able to contact one side of the assembly housing (16).

3. The anti-deviation positioning oil seal assembly tooling according to claim 1, characterized in that: The expansion assembly includes an installation plate (25) disposed within the placement platform (24). A moving rod (26) passes through the installation plate (25). A contact plate (34) is disposed at one end of the moving rod (26). Multiple sets of connecting rods (33) are disposed on one side of the contact plate (34). A moving plate (32) is disposed at one end of the connecting rod (33). Multiple sets of second deflection arms (31) are disposed on the moving plate (32). A first deflection arm (30) is disposed on the second deflection arm (31). A hollow tube (28) is disposed at one end of the first deflection arm (30). The moving rod (26) is slidably disposed within the hollow tube (28). A contact arc plate (35) is disposed at the top of one end of the second deflection arm (31). A contact protrusion (36) is disposed on one side of the bottom of the contact arc plate (35). Multiple sets of contact grooves (37) are opened on one side of the contact arc plate (35).

4. The anti-deviation positioning oil seal assembly tooling according to claim 2, characterized in that: The limiting plate (15) has an arc-shaped opening on one side, and the contact plate (14) also has an arc-shaped opening. Both the contact plate (14) and the limiting plate (15) are adapted to the assembly housing (16) on one side.

5. The anti-deviation positioning oil seal assembly tooling according to claim 3, characterized in that: A protrusion (17) is provided on one side of the assembly housing (16), and the protrusion (17) is used to place the oil seal body (18).

6. The anti-deviation positioning oil seal assembly tooling according to claim 5, characterized in that: The contact arc plate (35) is in contact with the inner wall of the oil seal body (18), and the contact protrusion plate (36) can be in contact with the bottom of the oil seal body (18).

7. The anti-deviation positioning oil seal assembly tooling according to claim 4, characterized in that: A rotating rod (19) is provided on one side of the bottom of the limiting plate (15). A driving plate (20) is provided on the rotating rod (19). The driving plate (20) is curved. One end of the driving plate (20) is in contact with the assembly housing (16). A deflection plate (21) is also provided on the rotating rod (19). A contact pad (22) is provided on the deflection plate (21). Multiple sets of telescopic holes (23) are opened through the surface of the contact pad (22). The contact pad (22) is made of rubber.

8. The anti-deviation positioning oil seal assembly tooling according to claim 3, characterized in that: Multiple sets of contact arc plates (35) are provided on the hollow tube (28). One end of the contact arc plate (35) is provided on the mounting plate (25). A buffer spring (29) is sleeved on the moving rod (26). One end of the buffer spring (29) is provided on one side of the mounting plate (25), and the other end of the buffer spring (29) is provided inside the hollow tube (28). The moving rod (26) is a telescopic structure.

9. The anti-deviation positioning oil seal assembly tooling according to claim 8, characterized in that: A mounting block (38) is provided on one side of the second deflection arm (31). A guide rod (39) is provided on the mounting block (38). The guide rod (39) is a telescopic structure. A connecting plate (41) is provided at one end of the guide rod (39). One end of the connecting plate (41) is provided on the contact protrusion (36). A support spring (40) is sleeved on the guide rod (39). One end of the support spring (40) is provided on one side of the mounting block (38), and the other end of the support spring (40) is provided on one side of the connecting plate (41).

10. The anti-deviation positioning oil seal assembly tooling according to claim 9, characterized in that: The other end of the moving rod (26) is provided with a pull ring (27).