Dustproof ring press fitting tool

Abstract

The utility model discloses a dustproof ring press fitting tool. The dustproof ring press-fitting tool comprises a press-fitting body (11), a press-down face (14) is arranged at the bottom of the press-fitting body, a plurality of threaded holes (12) are formed in the press-fitting body and penetrate through the top of the press-fitting body and the press-down face at the bottom of the press-fitting body, jacking pieces (13) are assembled in the threaded holes, screwdriver butt-joint grooves are formed in the top ends of the jacking pieces, jacking heads are arranged at the bottom ends of the jacking pieces, and the screwdriver butt-joint grooves are matched with the jacking heads. The pressing head protrudes out of the pressing surface; and an annular cover edge (15) is arranged at the edge part of the press fitting body. When the dustproof ring press-fitting tool is used for assembling a dustproof ring (2), the dustproof ring is pressed into the sinking ring groove, and meanwhile, the jacking part is jacked on the outer ring end face of the guide sleeve (3) and is close to the sinking ring groove to form a recess, that is, the sample punching dotting operation is completed while the dustproof ring is assembled, so that the dustproof ring press-fitting tool is convenient and rapid, does not need to consume manpower, and improves the production efficiency. The operation efficiency is effectively improved, and the operation quality is improved.

Description

Technical Field

[0001] The utility model relates to a hydraulic equipment assembly tool, in particular to a dust ring press assembly tool. Background Art

[0002] Metal skeleton dust seals are widely used in the field of hydraulic sealing, and their dustproof performance is better than that of ordinary pure rubber dust seals.

[0003] A guide sleeve is provided in the hydraulic cylinder device, and one end of the inner hole of the guide sleeve needs to be connected to the piston rod of the hydraulic cylinder. In order to achieve a sealing effect, a dust ring needs to be installed at the connection. The dust ring is installed in an embedded configuration provided on the dust ring in an embedded manner, and a sample punching operation is performed on the periphery of the embedded configuration to form a depression, so that the part of the embedded configuration adjacent to the depression is deformed, thereby forming a squeezing effect on the dust ring installed in the embedded configuration, so that the dust ring is firmly positioned.

[0004] The current problem is that the operation process of punching and dotting to form depressions around the embedded configuration is implemented manually. The manual punching and dotting method has low efficiency and low quality. There is currently no special tooling to implement the punching and dotting operation. Summary of the invention

[0005] The utility model aims to provide a dust ring pressing tool, which can realize sample punching and dotting operations while assembling the dust ring, which is convenient and fast and does not require manpower.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] A dust ring press-fitting tool, the dust ring press-fitting tool comprises a press-fitting body, the bottom of the press-fitting body has a press-fitting surface, the press-fitting body is provided with a plurality of threaded holes, the threaded holes penetrate the top of the press-fitting body and the press-fitting surface of the bottom of the press-fitting body, a pressing piece is assembled in the threaded hole, a screwdriver docking groove is provided at the top of the pressing piece, a pressing head is provided at the bottom of the pressing piece, and the pressing head protrudes from the press-fitting surface.

[0008] Furthermore, an annular cover edge is provided on the edge portion of the press-fit body.

[0009] Furthermore, an inverted conical surface is provided on the inner side of the lower end of the annular cover edge.

[0010] Furthermore, the number of threaded holes provided on the press-fit body is 3.

[0011] Furthermore, a central circular hole is opened in the middle of the press-fit body.

[0012] Furthermore, a conical surface is arranged adjacent to the central circular hole.

[0013] The dust ring pressing tool of the utility model has a plurality of pressing parts on its pressing body. When the dust ring is assembled by the dust ring pressing tool, while the dust ring is pressed into the sunken ring groove, the pressing parts press to form a depression on the outer ring end face of the guide sleeve near the sunken ring groove. That is to say, while the dust ring is being assembled, the sample punching and dotting operation is also completed, which is convenient and quick, does not require manpower, effectively improves the working efficiency, and also improves the working quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the dust ring press-fitting tool of the utility model;

[0015] Figure 2 It is a radial cross-sectional view of the dust ring press-fitting tool of the utility model;

[0016] Figure 3 and Figure 4 It is a schematic diagram of assembling a dustproof ring by using the dustproof ring press-fitting tool of the utility model, wherein: Figure 3 This is a schematic diagram of the dust ring not yet assembled. Figure 4 This is a schematic diagram of the dust seal being assembled. DETAILED DESCRIPTION

[0017] The utility model is further described below with specific embodiments:

[0018] The present embodiment relates to a guide sleeve, which is a component of a hydraulic cylinder and is also called a cylinder cover.

[0019] In order to achieve the sealing effect, a dust ring needs to be installed at one end of the inner hole of the guide sleeve. For the convenience of description, the end of the guide sleeve where the dust ring needs to be installed is called the "installation target end" of the guide sleeve.

[0020] An embedded configuration for the dustproof ring is provided at the "installation target end" of the guide sleeve, specifically, an annular sunken step. For the convenience of description, this embedded configuration is called a "sunken ring groove". The configuration size of the sunken ring groove matches the configuration of the dustproof ring, and the dustproof ring can be assembled in the sunken ring groove in an embedded manner.

[0021] There is also a circle of annular end face on the periphery of the sunken annular groove. For the convenience of description, this annular end face is called the "outer ring end face" of the installation target end of the guide sleeve.

[0022] It should be noted that the dust seal involved in the present embodiment is a dust seal provided with a metal frame.

[0023] This embodiment provides a dust ring press-fitting tool, which is used to assemble the dust ring at the installation target end of the guide sleeve, or in other words, to embed the dust ring into the sunken annular groove at the installation target end.

[0024] Specifically, see Figure 1 and Figure 2 The press-fitting tool 1 of this embodiment mainly includes a press-fitting body 11 and three pressing members 13 arranged thereon.

[0025] A central circular hole is opened in the middle of the press-fit body 11 , and the configuration of the entire press-fit body 11 is similar to a disk with a hollowed-out middle portion, and its configuration size matches the installation target end of the guide sleeve 3 .

[0026] The purpose of providing the central circular hole is to reduce weight, and a conical surface is provided adjacent to the central circular hole. The purpose of providing the conical surface is to prevent the lip of the dustproof ring 2 from being squeezed.

[0027] The press-fit body 11 is further provided with three threaded holes 12 , which penetrate the top and bottom of the press-fit body 11 . The three threaded holes 12 are evenly and discretely distributed around the central circular hole in the middle of the press-fit body 11 .

[0028] The center points of all threaded holes 12 are on the same circle, which is called the "pressure point circle". The center of the "pressure point circle" is the center point of the press-fit body 11, that is, the distance between the "center point of all threaded holes 12" and the "center point of the press-fit body 11" is consistent.

[0029] The three pressing members 13, for a single pressing member 13, are provided with threads matching the threaded holes 12 on their circumferential surfaces, a screwdriver docking groove is provided at the top end of the pressing member 13, and the bottom end of the pressing member 13 is provided with an arc-shaped "pressing head" configuration.

[0030] The three pressing pieces 13 are respectively assembled in the three threaded holes 12 by means of threaded connection. The pressing heads at the bottom ends of the pressing pieces 13 extend out from the lower openings of the threaded holes 12 , that is, protrude from the bottom of the press-fit body 11 .

[0031] The configuration of the bottom of the press-fit body 11 matches the configuration of the installation target end of the guide sleeve 3 .

[0032] Specifically,

[0033] The edge of the press-fit body 11 extends downward to form a circular ring-shaped enclosure, which is referred to as a “circular cover edge” for ease of description. Based on the circular cover edge 15 , the bottom of the press-fit body 11 can be buckled onto the installation target end of the guide sleeve 3 .

[0034] The bottom of the press-fit body 11 has a press-fit surface 14 , which is actually the annular bottom surface of the press-fit body 11 within the annular cover edge 15 . The press-fit surface 14 is used to press the dust ring 2 into the sunken annular groove of the guide sleeve 3 .

[0035] The three threaded holes 12 opened on the press-fit body 11 mentioned above have their lower ends located on the press-fitting lower surface 14 . The pressing piece 13 assembled in the threaded hole 12 has its pressing head at the bottom end extending from the lower end of the threaded hole 12 , that is, protruding downward from the press-fitting lower surface 14 of the press-fitting body 11 .

[0036] The dust ring press-fitting tool of this embodiment is used to assemble the dust ring 2 on the installation target end of the guide sleeve 3. The specific assembly process is as follows:

[0037] See also Figure 3 and Figure 4 , install the press-fitting tool 1 of this embodiment on a punching machine (not shown in the figure), place the guide sleeve 3 at the assembly position in the punching machine, with the installation target end of the guide sleeve 3 facing the press-fitting tool 1 above, and place the dust ring 2 in the sunken ring groove of the guide sleeve 3.

[0038] Start the punching machine to press down, driving the press-fit body 11 to buckle on the installation target end of the guide sleeve 3. At this time,

[0039] The "outer ring end face of the installation target end of the guide sleeve 3" is located directly below the "pressing piece 13 provided on the press-fitting body 11", that is, the "pressing head at the bottom end of the press-fitting piece 13" is directly facing the "outer ring end face of the installation target end of the guide sleeve 3" below.

[0040] The pressing bottom surface 14 of the press-fit body 11 presses downward on the dust ring 2 and presses it downward.

[0041] The punching machine drives the press fitting 1 to continue pressing downward until the pressing surface 14 of the press fitting body 11 presses the dust ring 2 into the sunken annular groove of the guide sleeve 3 .

[0042] At the same time, the pressing piece 13 provided on the press-fitting body 11 has its pressing head pressed against the "outer ring end surface of the installation target end of the guide sleeve 3" (such as Figure 3 The dustproof ring 2 is firmly positioned in the sinking ring groove, and the dustproof ring 2 is not easy to fall off from the sinking ring groove.

[0043] When the dust ring pressing tool of the present embodiment is used to assemble the dust ring 2, while the dust ring 2 is pressed into the sunken ring groove, the pressing piece 13 presses on the outer ring end face of the guide sleeve 3 near the sunken ring groove to form a depression, that is, the sample punching and dotting operation is completed, which is convenient and quick and can be achieved without manpower, thereby effectively improving the working efficiency.

[0044] In addition, the pressing piece 13 is assembled in the threaded hole 12 by means of a threaded connection, and a screwdriver can be used to adjust the extent to which the pressing head of the pressing piece 13 protrudes from the pressing surface 14, so that the depth of the sample punching can be controlled.

[0045] It should be noted that, in other implementations, the specific number of the pressing pieces 13 may be set according to actual conditions. In general, a plurality of pressing pieces 13 may be set on the press-fit body 11 .

[0046] Preferably, an inverted conical surface (a conical surface with the bell mouth facing downward, such as Figure 2 The annular cover edge 15 is preferably arranged at the position indicated by the middle arrow B), or in other words, a chamfer is provided. Such a setting is conducive to guiding the annular cover edge 15 to be buckled on the installation target end of the guide sleeve 3.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dust ring press fitting tool, Features: The dust ring press-fitting tool comprises a press-fitting body (11), the bottom of the press-fitting body (11) has a press-fitting surface (14), The press-fit body (11) is provided with a plurality of threaded holes (12), the threaded holes (12) penetrate the top of the press-fit body (11) and the press-fit surface (14) at the bottom of the press-fit body (11). A pressing piece (13) is installed in the threaded hole (12), a screwdriver docking groove is arranged at the top end of the pressing piece (13), and a pressing head is arranged at the bottom end of the pressing piece (13), and the pressing head protrudes from the pressing surface (14).

2. According to the dust ring press-fitting tool described in claim 1, Features: The edge of the press-fit body (11) is provided with an annular cover edge (15).

3. According to the dust ring press-fitting tool described in claim 2, Features: An inverted conical surface is arranged on the inner side of the lower end of the annular cover edge (15).

4. According to the dust ring press-fitting tool described in claim 1, Features: The number of threaded holes (12) provided on the press-fit body (11) is three.

5. According to the dust ring press-fitting tool described in claim 1, Features: A central circular hole is provided in the middle of the press-fit body (11).

6. According to claim 5, the dust ring press-fitting tool, Features: A conical surface is arranged adjacent to the central circular hole.

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