Device for sleeving sealing ring into piston

Abstract

The utility model provides a device for sleeving a sealing ring into a piston. The device comprises a base; the sealing ring opening assembly is arranged on the base and comprises a plurality of opening rods, at least two opening rods are distributed in the first direction at intervals, and the axial directions of the opening rods extend in the second direction; the piston clamping assembly is arranged on the base and comprises a piston clamping head and a piston clamping head driver, and the piston clamping head driver is used for driving the piston clamping head to be close to or away from the opening rod in the second direction and driving the piston clamping head to move in the third direction; according to the device for sleeving the sealing ring into the piston, the sealing ring and the piston can be mechanically assembled, the efficiency is improved, and the device can be well suitable for assembling the sealing ring and the piston on a large scale.

Description

Technical Field

[0001] This utility model belongs to the field of sealing ring assembly technology, specifically relating to a device for fitting a sealing ring into a piston. Background Technology

[0002] Seals are widely used in various fields. For example, in engines, seals need to be fitted onto pistons to prevent internal liquids such as grease or oil from leaking out, and also to prevent the intrusion of external splashes of water or dust.

[0003] In existing technologies, the installation of sealing rings onto pistons is mostly done manually. This involves first spreading the sealing ring open, then moving it to the desired installation position, and finally releasing the spread to allow the sealing ring to fit into the required position. This manual method of assembling the sealing ring and piston is not only labor-intensive for operators but also time-consuming and inefficient, making it unsuitable for assembling large quantities of sealing rings.

[0004] Therefore, it is necessary to design a device for fitting the sealing ring into the piston to improve the assembly efficiency of the sealing ring and the piston. Utility Model Content

[0005] To address some or all of the aforementioned technical problems in the prior art, this utility model proposes a device for fitting a sealing ring into a piston. This device can mechanize the assembly of the sealing ring and the piston, improving efficiency and making it well-suited for assembling large quantities of sealing rings and pistons.

[0006] According to this utility model, a device for fitting a sealing ring into a piston is provided, comprising:

[0007] Base

[0008] A sealing ring opening assembly is disposed on the base. The sealing ring opening assembly includes a plurality of opening rods, at least two of which are spaced apart in a first direction and the axial direction of each opening rod extends along a second direction.

[0009] The piston clamping assembly disposed on the base includes a piston clamping head and a piston clamping head driver. The piston clamping head driver is used to drive the piston clamping head to move closer to or further away from the spreading rod in a second direction, and to drive the piston clamping head to move upward in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0010] In one embodiment, the sealing ring opening assembly further includes a slider that is slidably connected to the base in a first direction, and at least one of the opening rods is fixed to the slider.

[0011] In one embodiment, there are two of each of the spreading rods and the sliders, and the spreading rods are fixed to the sliders in a one-to-one correspondence.

[0012] In one embodiment, the slider is constructed as a bent piece, with one side of the slider slidably connected to the base and the other side of the slider used to fix the support rod.

[0013] In one embodiment, the end face of the slider used to fix the spreading rod protrudes from the spreading rod at least at its outer end in a first direction.

[0014] In one embodiment, a mounting base is provided on the base, the mounting base is provided with a guide groove extending along a first direction, and a guide block is provided on one side of the slider, the guide block being embedded in the guide groove.

[0015] In one embodiment, the mounting base is connected to the base via an extender, the extender being used to extend and retract the mounting base in a second direction.

[0016] In one embodiment, a weight-reducing hole is provided on one side of the slider.

[0017] In one embodiment, the spreading rod is constructed as a cylindrical rod.

[0018] In one embodiment, the piston clamping head includes a clamping head body and clamping motion blocks movably connected to the clamping head body, wherein there are multiple clamping motion blocks and they are evenly distributed circumferentially around a second direction.

[0019] Compared with the prior art, the advantages of this utility model are: the device for fitting the sealing ring onto the piston can mechanically fit the sealing ring onto the piston, improving efficiency, reducing employee fatigue, and is especially suitable for assembling large quantities of sealing rings and pistons. Attached Figure Description

[0020] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, in which:

[0021] Figure 1 This invention illustrates a device for fitting a sealing ring onto a piston according to an embodiment of the present invention;

[0022] Figure 2 This invention illustrates a device for fitting a sealing ring onto a piston according to an embodiment of the present invention;

[0023] Figure 3 The illustration shows a seal ring opening assembly and a mounting base for a device for fitting a seal ring onto a piston, according to an embodiment of the present invention.

[0024] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0025] To make the technical solution and advantages of this utility model clearer, the exemplary embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0026] An embodiment of this utility model provides a device for fitting a sealing ring into a piston. For example... Figures 1 to 3 As shown, the device for fitting a sealing ring into a piston includes a base (not shown), a sealing ring spreading assembly 1, and a piston clamping assembly 5. The base primarily serves as a foundation support, positioning the device for fitting the sealing ring into the piston at a predetermined position. Depending on actual needs, the base can be frame-like or platform-like, etc. Of course, any component that can fix the device for fitting the sealing ring into the piston to the predetermined position falls within the scope of protection of this application. It is easily understood that the device for fitting the sealing ring into the piston can be mounted on a sealing ring supply and cutting device, and the base of the sealing ring supply and cutting device can serve as the base for the device for fitting the sealing ring into the piston. The sealing ring spreading assembly 1 is mounted on the base. Specifically, the sealing ring spreading assembly 1 includes spreading rods 11. The spreading rods 11 are rod-shaped. There are multiple spreading rods 11, with at least two spaced apart in a first direction, and the axial direction of each spreading rod 11 extends along a second direction. The spreading rods 11 are mainly used to spread the sealing ring 10. The piston clamping assembly 5 is mounted on the base. The piston clamping assembly 5 includes a piston clamping head 51 and a piston clamping head driver 52. The piston clamping head 51 is used to clamp and fix the piston 20. The piston clamping head driver 52 is used to drive the piston clamping head 51 to move closer to or further away from the spreading rod 11 in a second direction. The piston clamping head driver 52 can also drive the piston clamping head 51 to move in a third direction. In this application, the first direction, the second direction, and the third direction are perpendicular to each other. Figure 1 The first direction, the second direction, and the third direction are identified.

[0027] During use, the sealing ring 10 is placed on the expansion rod 11. Due to the distance between the two expansion rods 11, the sealing ring 10 is expanded. After the sealing ring 10 is expanded, its outer peripheral wall forms two spaced edges in the third direction. The piston 20 is placed on the piston clamping head 51 and clamped and fixed. The piston clamping head driver 52 drives the piston clamping head 51 to approach the sealing ring 10 in the second direction and abut against a portion of the outer periphery of the sealing ring 10, i.e., one side of the sealing ring 10 in the third direction. The piston clamping head driver 52 drives the piston clamping head 51 to continue moving in the second direction and press down on the portion of the outer periphery of the sealing ring 10. At this time, the piston 20 follows the piston clamping head 51 in the second direction until the mounting groove 21 on the piston 20 to be fitted with the sealing ring 10 is aligned with the unpressed portion of the outer periphery of the sealing ring 10 (i.e., the other side of the sealing ring 10 in the third direction). Next, the piston clamping head driver 52 drives the piston clamping head 51 to move in the third direction, approaching the outer periphery of the unpressed portion of the sealing ring 10, until the sealing ring 10 is fitted into the mounting groove 21. Afterwards, the piston clamping head driver 52 drives the piston clamping head 51 to perform a reset movement, removing the piston 20 with the sealing ring 10 fitted. The operation of fitting the sealing ring 10 onto the piston 20 is repeated as described above, completing the assembly operation of multiple sealing rings 10 and pistons 20.

[0028] The sealing ring opening assembly also includes a slider 12. The slider 12 is slidably connected to the base in a first direction. At least one of the opening rods 11 is fixed to the slider 12. Thus, the slider 12 can drive the opening rod 11 to move in the first direction, thereby adjusting the distance between two adjacent opening rods 11. This allows the opening rod 11 to adapt to sealing rings 10 of different specifications, meeting a wider range of application needs. For example, if the inner diameter of the sealing ring 10 is different, the distance between the opening rods 11 can be adjusted to adapt to the sealing ring 10; if the thickness of the sealing ring 10 is different, the opening tension of the sealing ring 10 can also be adjusted by adjusting the distance between the opening rods 10. Preferably, there are two opening rods 11 and two sliders 12. The opening rods 11 are fixed to the sliders 12 in a one-to-one correspondence. This arrangement allows the sliders 12 to move in tandem, thereby driving the two opening rods 11 to move relative to or towards each other, achieving rapid and stable adjustment and ensuring uniform force on the sealing ring 10.

[0029] The movement of slider 12 along the first direction can be driven by a pneumatic or hydraulic cylinder. The position of the expansion rod 11 ensures the expansion tension of the sealing ring 10.

[0030] The slider 12 is constructed as a bent component. One side of the slider 12 is used to slide onto the base, and the other side of the slider is used to fix the support rod 11. This structure is simple, easy to implement, and allows the support rod 11 to be easily mounted on the base.

[0031] The end face of the slider 12 used to fix the support rod 11 protrudes from the outer end of the support rod 11 at least in the first direction. That is, the end face of the slider 12 used to fix the support rod 11 is larger than the cross-section of the support rod 11, and the support rod 11 is located on the inner side of the end face of the slider 12 in the first direction. On the one hand, this arrangement makes the distance between the two sliders 12 consistent with the distance between the support rods 11, and it is not easy to interfere with the piston clamping head 51. On the other hand, the above arrangement creates a limiting surface 13 on the end face of the slider 12 to limit the sealing ring 10, preventing the sealing ring 10 from moving downward as a whole during the pressing process by the piston clamping head 51, ensuring that part of the circumference of the sealing ring 10 moves downward while part of its position remains stationary, so as to ensure installation positioning.

[0032] A mounting base 14 is provided on the base. A guide groove 15 extending along a first direction is provided on the mounting base 14. A guide block 16 is provided on one side of the slider 12. The guide block 16 is embedded in the guide groove 15. The above arrangement can ensure that the slider 12 can move safely and stably relative to the mounting base 14.

[0033] Mounting base 14 is connected to the base via an extender 17. The extender 17 can be a hydraulic cylinder or a pneumatic cylinder, etc. By setting the extender 17, the mounting base 14 can drive the slider 12, which in turn drives the support rod 11, etc., to move in the second direction. This configuration increases the mobility of the mounting base 14 and improves the adjustment range of the support rod 11 and the slider 12 in the second direction.

[0034] The slider 12 can be formed by bending a plate or rod. To ensure the strength of the slider 12 while meeting the requirements for lightweighting, for example, the slider 12 can be formed by bending a tube with a square cross-section. In addition, a weight-reducing hole 18 is provided on one side of the slider 12 to reduce weight.

[0035] The support rod 11 is constructed as a cylindrical rod. This design is simple and easy to implement, and in particular, it ensures that the outer wall of the support rod 11 is smooth when it comes into contact with the sealing ring 10, thus protecting the sealing ring 10.

[0036] The piston clamping head 51 includes a clamping head body 53 and clamping motion blocks 54 movably connected to the clamping head body 53. Multiple clamping motion blocks 54 are evenly distributed circumferentially around a second direction. When the clamping motion blocks 54 move towards the center relative to the clamping head body 53, they can clamp the piston 20; when the clamping motion blocks 54 move outward relative to the clamping head body 53, they can unload the piston 20 or be in a state where the piston 20 is ready to be installed. For example, there are three clamping motion blocks 54.

[0037] By using the device for fitting a sealing ring into a piston as described in this application, the sealing ring can be mechanically fitted into the piston, improving efficiency and reducing labor costs.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and / or modifications falling within the scope of the present invention, and all changes and / or modifications made according to the embodiments of the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for fitting a sealing ring into a piston, characterized in that, include: Base A sealing ring opening assembly is disposed on the base. The sealing ring opening assembly includes a plurality of opening rods, at least two of which are spaced apart in a first direction and whose axial directions all extend along a second direction. The piston clamping assembly disposed on the base includes a piston clamping head and a piston clamping head driver. The piston clamping head driver is used to drive the piston clamping head to move closer to or further away from the spreading rod in a second direction, and to drive the piston clamping head to move upward in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

2. The device for fitting a sealing ring into a piston according to claim 1, characterized in that, The sealing ring opening assembly also includes a slider, which is slidably connected to the base in a first direction, and at least one of the opening rods is fixed to the slider.

3. The device for fitting a sealing ring into a piston according to claim 2, characterized in that, There are two of each of the spreading rods and the sliders, and the spreading rods are fixed to the sliders in a one-to-one correspondence.

4. The device for fitting a sealing ring into a piston according to claim 3, characterized in that, The slider is constructed as a bent part, with one side of the slider being slidably connected to the base and the other side of the slider being used to fix the support rod.

5. The device for fitting a sealing ring into a piston according to claim 4, characterized in that, The end face of the slider used to fix the spreading rod protrudes from the spreading rod at least at its outer end in a first direction.

6. The device for fitting a sealing ring into a piston according to claim 4, characterized in that, A mounting base is provided on the base, and a guide groove extending along a first direction is provided on the mounting base. A guide block is provided on one side of the slider, and the guide block is embedded in the guide groove.

7. The device for fitting a sealing ring into a piston according to claim 6, characterized in that, The mounting base is connected to the base via an extender, which is used to extend and retract the mounting base in a second direction.

8. The device for fitting a sealing ring into a piston according to any one of claims 2 to 7, characterized in that, A weight-reducing hole is provided on one side of the slider.

9. The device for fitting a sealing ring into a piston according to any one of claims 1 to 7, characterized in that, The support rod is constructed as a cylindrical rod.

10. The device for fitting a sealing ring onto a piston according to any one of claims 1 to 7, characterized in that, The piston clamping head includes a clamping head body and clamping motion blocks movably connected to the clamping head body. There are multiple clamping motion blocks, which are evenly distributed in the circumferential direction around the second direction.

Images