Press fitting component and machining device

Abstract

The utility model relates to the technical field of mechanical assembly, and provides a press fitting component and a machining device. The press-fitting component comprises a press-fitting base and a press-fitting cap. The press-fitting base is provided with a first limiting groove, the first limiting groove is used for limiting the plug head part, the plug head part comprises a plug head seat, a pressing ring and a plug head pad, the plug head pad is sleeved with the pressing ring, and the pressing ring and the plug head pad are both limited to the plug head seat; the press-fitting cap is provided with a first cavity, the press-fitting cap is arranged on the press-fitting base, the press-fitting cap is used for press-fitting of the plug head part, the press-fitting cap is provided with a press-fitting cap inner hole, and the press-fitting cap inner hole is in clearance fit with the plug head cushion. The press-fitting component overcomes the defects that in the prior art, in the press-fitting process, a press head of the press-fitting component can also generate direct acting force on a plug cushion of the plug component, the plug cushion can be damaged in the press-fitting process, and therefore the product percent of pass is reduced, the plug cushion cannot be in direct contact in the press-fitting process, and the product quality is improved. Therefore, the plug pad is not damaged, and the qualified rate of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical assembly, in particular to a pressing component and a processing device. Background Art

[0002] The plug component of an electromagnetic control valve is one of the key components inside the solenoid valve. Factors such as its design and assembly effect will affect the working effect and performance of the solenoid valve. When assembling the plug component, a processing device is required, and the pressing component in the processing device plays a crucial role in the assembly of the plug component. During the pressing process of the pressing component in the current processing device, the pressing head will also exert a direct force on the plug gasket of the plug component, damaging the plug gasket during the pressing process, thereby reducing the product qualification rate. Summary of the Utility Model

[0003] The utility model provides a pressing component to solve the defect that in the prior art, the pressing head of the pressing component will also exert a direct force on the plug gasket of the plug component, damaging the plug gasket during the pressing process, thereby reducing the product qualification rate. It realizes that the plug gasket will not be directly contacted during the pressing process, and thus the plug gasket will not be damaged, ensuring the product qualification rate.

[0004] The utility model provides a pressing component, including a pressing base and a pressing cap. The pressing base has a first limiting groove for limiting the plug component. The plug component includes a plug seat, a pressing ring, and a plug gasket. The pressing ring is sleeved outside the plug gasket, and both the pressing ring and the plug gasket are limited in the plug seat. The pressing cap has a first cavity, and the pressing cap is arranged on the pressing base. The pressing cap is used for pressing the plug component, and the pressing cap is provided with a pressing cap inner hole, and the pressing cap inner hole has a clearance fit with the plug gasket.

[0005] According to the pressing component provided by the utility model, the diameter of the pressing cap inner hole is larger than the inner diameter of the pressing ring and smaller than the outer diameter of the pressing ring.

[0006] According to the pressing component provided by the utility model, the pressing base and the pressing cap are in contact connection.

[0007] According to the pressing component provided by the utility model, the plug seat is provided with a first protruding portion, and a third cavity is arranged inside the first protruding portion. The pressing ring and the plug gasket are located inside the third cavity.

[0008] According to the pressing component provided by the utility model, one end of the plug gasket facing the bottom wall of the third cavity is provided with a second protruding portion, and the second protruding portion extends along the radial direction of the plug gasket. The pressing ring is located above the second protruding portion and is in contact connection with the second protruding portion.

[0009] According to the press-fit component provided by the utility model, the top of the pressing ring is coplanar with the top of the first protruding portion, or the top of the pressing ring protrudes from the top of the first protruding portion.

[0010] According to the press-fit component provided by the utility model, the top of the plug pad protrudes from the top of the first protrusion.

[0011] According to the press-fit component provided by the utility model, the top of the press ring and the first protrusion are in contact with the top wall of the press-fit cap.

[0012] The utility model also provides a processing device, comprising a press machine and a press-fitting component as described in any one of the above embodiments; the press machine comprises a press machine base and a press machine body. The press-fitting component is limited to the press machine base; the press machine body is arranged on the press machine base and is arranged corresponding to the press-fitting component, and is used to apply pressure to the press-fitting cap to press-fit the plug head component.

[0013] According to a processing device provided by the utility model, the press base is provided with a second limiting groove, and the press-fitting component is limited in the second limiting groove.

[0014] The press-fitting component provided by the utility model effectively avoids direct squeezing of the plug pad by the press-fitting cap during the press-fitting process by designing a clearance fit between the inner hole of the press-fitting cap and the plug pad. This design reduces the direct impact force on the plug pad and prevents it from being damaged. Secondly, since the force of the press-fitting cap acts on the plug pad through the pressure ring, during the press-fitting process, the outer wall of the pressure ring and the inner wall of the plug seat, as well as the inner wall of the pressure ring and the side wall of the plug pad are fixed by friction, so the plug pad will not move due to temperature changes or with the increase in the number of uses. This makes the assembly of the various components of the plug component more compact and firm.

[0015] The utility model also provides a processing device, and because the processing device includes the above-mentioned press-fitting component, it also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the press-fit component provided by the utility model.

[0018] Figure 2It is a schematic structural diagram of the press-fitting base of the press-fitting component provided by the present utility model.

[0019] Figure 3 It is a schematic structural diagram of the press-fitting cap of the press-fitting component provided by the present utility model.

[0020] Figure 4 It is a schematic structural diagram of the plug seat of the press-fitting component provided by the present utility model.

[0021] Figure 5 It is a schematic structural diagram of the plug gasket of the press-fitting component provided by the present utility model.

[0022] Figure 6 It is a schematic structural diagram of the processing device provided by the present utility model.

[0023] Figure 7 It is a schematic structural diagram of the press-fitting component in the prior art.

[0024] Reference numerals: 100: press; 110: press base; 111: second limit groove; 120: support rod; 130: press body; 131: press head; 200: press-fitting component; 210: press-fitting base; 211: first limit groove; 220: press-fitting cap; 221: first cavity; 222: inner hole of press-fitting cap; 300: plug component; 310: plug seat; 311: first protrusion; 312: third cavity; 320: pressure ring; 330: plug gasket; 331: second protrusion; 410: base; 420: press head; 421: press groove. Detailed implementation manners

[0025] The following further describes in detail the implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0026] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Figure 7 The schematic diagram of the structure of the press-fit component in the prior art is illustrated. Figure 7 The press-fitting component in the prior art includes a base 410 and a pressure head 420, and a pressure groove 421 is provided at the bottom of the pressure head 420. The plug component 300 is arranged on the base 410, and the pressure head 420 covers the top of the plug component 300, and the tops of the plug seat 310, the pressure ring 320 and the plug pad 330 are all in contact with the bottom wall of the pressure groove 421. During the press-fitting process, the pressure groove 421 will directly act on the top of the plug pad 330, so it will cause certain damage to the plug pad 330, thereby reducing the qualified rate of the plug component 300. In order to solve this technical problem, the utility model provides a press-fitting component. In combination with Figures 1-7 The embodiments of the present invention are described.

[0031] Figure 1 It illustrates a schematic structural diagram of the press-fitting component provided by the embodiment of the present utility model. Figure 2 It illustrates a schematic structural diagram of the press-fitting base of the press-fitting component provided by the embodiment of the present utility model. Figure 3 It illustrates a schematic structural diagram of the press-fitting cap of the press-fitting component provided by the embodiment of the present utility model. A press-fitting component provided by the embodiment of the present utility model includes a press-fitting base 210 and a press-fitting cap 220. The press-fitting base 210 has a first limiting groove 211, and the first limiting groove 211 is used to limit the plug head component 300. The plug head component 300 includes a plug head seat 310, a pressing ring 320 and a plug head gasket 330. The pressing ring 320 is sleeved outside the plug head gasket 330, and both the pressing ring 320 and the plug head gasket 330 are limited in the plug head seat 310; the press-fitting cap 220 has a first cavity 221, the press-fitting cap 220 is arranged on the press-fitting base 210, the press-fitting cap 220 is used to press-fit the plug head component 300, the press-fitting cap 220 is provided with a press-fitting cap inner hole 222, and the press-fitting cap inner hole 222 is in clearance fit with the plug head gasket 330. Specifically, the press-fitting cap 220 can be covered on the top of the press-fitting base 210, so that the first cavity 221 and the first limiting groove 211 form a complete cavity, and then the plug head component 300 can be placed inside the cavity.

[0032] In the above structure, the press-fitting base 210 serves as the carrier of the entire press-fitting component. The first limiting groove 211 provided thereon is used to fix and limit the plug head component 300 to ensure that the position of the plug head component 300 remains stable during the press-fitting process. The press-fitting cap 220 is provided with a first cavity 221 and is installed on the press-fitting base 210. The press-fitting cap 220 is internally provided with a press-fitting cap inner hole 222, and there is a clearance fit between this inner hole and the plug head gasket 330, that is, there is a certain gap between the two to avoid direct contact. Before the press-fitting starts, the plug head component 300 is placed in the first limiting groove 211 of the press-fitting base 210, and at the same time, ensure that the positions of the plug head gasket 330, the pressing ring 320 and the plug head seat 310 are accurate; then the press-fitting cap 220 is placed on the press-fitting base 210. Since the press-fitting cap inner hole 222 and the plug head gasket 330 are designed with a clearance fit, when the press-fitting cap 220 moves downward, it will not directly exert a squeezing force on the plug head gasket 330, but indirectly act on the plug head gasket 330 through the pressing ring 320, so as to assemble the plug head gasket 330 onto the plug head seat 310. During this process, the first limiting groove 211 of the press-fitting base 210 ensures the stable position of the plug head component 300 during the press-fitting process, improving the assembly accuracy and consistency. This helps to reduce the uneven force and damage of the plug head gasket 330 caused by position deviation.

[0033] In the present utility model, a clearance fit is designed between the inner hole 222 of the press-fitting cap and the plug gasket 330, thus effectively avoiding the direct extrusion of the plug gasket 330 by the press-fitting cap 220 during the press-fitting process. This design reduces the direct impact force borne by the plug gasket 330 and prevents its damage. Secondly, the design of the pressing ring 320 enables the pressure from the press-fitting cap 220 to be evenly distributed to the side of the plug gasket 330, rather than concentrating on the top of the plug gasket 330. This pressure dispersion mechanism further reduces the risk of damage to the top of the plug gasket 330, thereby significantly improving the qualified rate and production quality of the product. Since the acting force of the press-fitting cap 220 acts on the plug gasket 330 through the pressing ring 320, during the press-fitting process, there is frictional fixation between the outer wall of the pressing ring 320 and the inner wall of the plug seat 310, and between the inner wall of the pressing ring 320 and the side wall of the plug gasket 330. Therefore, the plug gasket 330 will not move due to temperature changes or increased usage times. This makes the assembly of each component of the plug component 300 more compact and firm.

[0034] Specifically, the inner hole 222 of the press-fitting cap can be set at the central position on the top of the press-fitting cap 220, and the plug gasket 330 is also set at the central position on the top of the plug seat 310, and the inner hole 222 of the press-fitting cap and the plug gasket 330 are coaxially arranged. With such an arrangement, when pressing the press-fitting cap 220, the plug gasket 330 can be located inside the inner hole 222 of the press-fitting cap. Of course, the inner hole 222 of the press-fitting cap can be set as a circular hole, and correspondingly, the top of the plug gasket 330 is set as a cylinder, and the diameter of the inner hole 222 of the press-fitting cap is slightly larger than the diameter of the top of the plug gasket 330. It should be noted that the upper half parts of the inner hole 222 of the press-fitting cap and the plug gasket 330 are not limited to the above shapes, and can also be other shapes, as long as the plug gasket 330 is located inside the inner hole 222 of the press-fitting cap during the press-fitting process.

[0035] In this embodiment, the material of the plug gasket 330 is PTFE (polytetrafluoroethylene). Among them, PTFE is a material with excellent corrosion resistance, capable of resisting the erosion of various strong acids, strong alkalis and organic solvents. At the same time, it also has good high-temperature resistance, non-stickiness and flame retardancy. The material of the plug gasket 330 can also be: ① fluororubber, which also has excellent corrosion resistance and high-temperature resistance and is suitable for a variety of chemical media. ② nitrile rubber (NBR), which has good oil resistance but relatively weak corrosion resistance and is suitable for non-corrosive or mildly corrosive media. ③ ethylene propylene diene monomer rubber (EPDM), which has good aging resistance and weather resistance and is suitable for applications outdoors or in harsh environments.

[0036] The plug seat 310 and the pressure ring 320 can be made of stainless steel (such as SUS304, 316L, etc.), brass, bronze, aluminum and other metal materials. In addition, for specific application environments, the plug seat 310 and the pressure ring 320 can also be made of alloy materials with special properties, such as high-temperature resistant alloys, corrosion-resistant alloys, etc.; composite materials can also be selected, such as combining metals with other materials (such as ceramics, plastics, etc.) to combine the advantages of different materials and improve overall performance.

[0037] Reference Figure 1 In some embodiments of the present invention, the diameter of the inner hole 222 of the press-fitting cap is larger than the inner diameter of the press ring 320 and smaller than the outer diameter of the press ring 320 .

[0038] Such arrangement can ensure that during the press-fitting process, the press-fitting cap 220 can directly act on the press ring 320. When setting the press ring 320, it is necessary to impose certain restrictions on the outer diameter of the press ring 320, so that after the press ring 320 is sleeved on the outside of the plug pad 330, it can also be tightly matched with the plug seat 310. That is, after the three are arranged, the press ring 320 is tightly arranged between the plug seat 310 and the plug pad 330. In this way, during the press-fitting process, the friction between the plug seat 310, the press ring 320 and the plug pad 330 can be used to increase the tightness of the connection between the plug seat 310, the press ring 320 and the plug pad 330.

[0039] Reference Figure 1 In some embodiments of the present invention, the press-fit base 210 and the press-fit cap 220 are in abutting connection.

[0040] Reference Figure 7 As shown, the base 410 and the pressing head 420 in the prior art do not contact during the press-fitting process, so when pressure is applied to the pressing head 420, the base 410 does not generate a reaction force on the pressing head 420. As the pressure increases, the pressing head 420 will only transfer the pressure to the plug component 300 infinitely, which can easily cause damage to the plug component 300 due to excessive pressure. In this embodiment, by making the press-fitting base 210 and the press-fitting cap 220 contact during the press-fitting process, it is possible to avoid excessive pressure directly acting on the plug component 300.

[0041] It should be noted that, in order for the plug component 300 to receive sufficient force, it is necessary to ensure that after the press-fitting base 210 and the press-fitting cap 220 are positioned properly, in the absence of pressure, a suitable gap is left between the press-fitting base 210 and the press-fitting cap 220, so that the plug component 300 can be easily acted upon after pressure is applied. As for the height of the gap, it is adjusted based on the standard of firmly assembling the plug component 300.

[0042] To prevent excessive pressure from damaging the press-fitting base 210 and the press-fitting cap 220, the materials of the press-fitting base 210 and the press-fitting cap 220 can be made of some metal materials with a certain hardness, such as steel. In some other possible embodiments, a pressure sensor can also be provided between the press-fitting base 210 and the press-fitting cap 220 to adjust the applied pressure by detecting the pressure between the two.

[0043] Figure 4 The structural schematic diagram of the plug seat of the press-fitting component provided by the embodiment of the present invention is illustrated. Refer to Figure 4 , in some embodiments of the present invention, the plug seat 310 is provided with a first protrusion 311, and a third cavity 312 is arranged inside the first protrusion 311. The pressure ring 320 and the plug gasket 330 are located inside the third cavity 312. By providing the first protrusion 311, on the one hand, it is convenient to place the pressure ring 320 and the plug gasket 330, and on the other hand, it is convenient for the press-fitting cap 220 to apply pressure to it.

[0044] Figure 5 The structural schematic diagram of the plug gasket of the press-fitting component provided by the present invention is shown. Refer to Figure 5 , in some embodiments of the present invention, one end of the plug gasket 330 facing the bottom wall of the third cavity 312 is provided with a second protrusion 331. The second protrusion 331 extends radially along the plug gasket 330. The pressure ring 320 is located above the second protrusion 331 and is in contact connection with the second protrusion 331.

[0045] Specifically, the second protrusion 331 is a ring structure and is arranged outside the plug gasket 330. By providing the second protrusion 331, on the one hand, it can play a role in limiting the pressure ring 320, and on the other hand, it can enable the pressure ring 320 to squeeze it, so that the assembly of the plug gasket 330 is tighter and the stress area of the plug gasket 330 is also increased.

[0046] Refer to Figure 1 , in some embodiments of the present invention, the top of the pressure ring 320 is coplanar with the top of the first protrusion 311, or the top of the pressure ring 320 protrudes from the top of the first protrusion 311, and the top of the plug gasket 330 protrudes from the top of the first protrusion 311.

[0047] Such a configuration can ensure that the press-fitting cap 220 can always apply pressure to the pressing ring 320. It should be noted that when the top of the plug pad 330 protrudes from the top of the first protrusion 311, the protrusion height cannot be too high, otherwise the press-fitting cap 220 will not be able to act on the plug seat 310. The protrusion height needs to ensure that the press-fitting cap 220 can contact both the plug seat 310 and the pressing ring 320 during the press-fitting process. That is, the top of the pressing ring 320 and the first protrusion 311 need to be in contact with the top wall of the press-fitting cap 220.

[0048] Figure 6 The schematic diagram of the structure of the processing device provided by the embodiment of the utility model is illustrated. Figure 6 The utility model also provides a processing device, including a press machine 100 and a press-fitting component 200 as in any one of the above embodiments. The press machine 100 includes a press machine base 110 and a press machine body 130. A second limiting groove 111 is provided at the center of the top of the press machine base 110, and the press-fitting component 200 is limited in the second limiting groove 111. A support rod 120 is also vertically provided on the press machine base 110, and the press machine body 130 is arranged on the support rod 120 so as to be movable up and down. The press machine body 130 is arranged corresponding to the press-fitting component 200, and is used to apply pressure to the press-fitting cap 220 to press-fit the plug component 300. A press head 131 is provided on the press body 130. The press head 131 is coaxially arranged with the press cap 220, and the press body 130 can directly act on the top of the press cap 220 during the downward movement to apply pressure to the press cap 220, thereby press-fitting the plug component 300.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A press-fit component, characterized in that: include: The press-fit base (210) has a first limiting groove (211), wherein the first limiting groove (211) is used to limit the position of the plug component (300), wherein the plug component (300) comprises a plug seat (310), a pressure ring (320) and a plug pad (330), wherein the pressure ring (320) is sleeved on the outside of the plug pad (330), and the pressure ring (320) and the plug pad (330) are both limited to the position of the plug seat (310); The press-fitting cap (220) has a first cavity (221). The press-fitting cap (220) is arranged on the press-fitting base (210). The press-fitting cap (220) is used to press-fit the plug component (300). The press-fitting cap (220) is provided with a press-fitting cap inner hole (222). The press-fitting cap inner hole (222) is clearance-matched with the plug pad (330).

2. The press-fit component according to claim 1, characterized in that: The diameter of the inner hole (222) of the press-fitting cap is larger than the inner diameter of the press ring (320), and smaller than the outer diameter of the press ring (320).

3. The press-fit component according to claim 2, characterized in that: The press-fit base (210) and the press-fit cap (220) are in abutting connection.

4. The press-fit component according to any one of claims 1 to 3, characterized in that: The plug seat (310) is provided with a first protruding portion (311), a third cavity (312) is provided inside the first protruding portion (311), and the pressure ring (320) and the plug pad (330) are located inside the third cavity (312).

5. The press-fit component according to claim 4, characterized in that: A second protrusion (331) is provided at one end of the plug pad (330) facing the bottom wall of the third cavity (312), and the second protrusion (331) extends radially along the plug pad (330). The pressure ring (320) is located above the second protrusion (331) and is in contact with and connected to the second protrusion (331).

6. The press-fit component according to claim 5, characterized in that: The top of the pressure ring (320) is coplanar with the top of the first protruding portion (311), or the top of the pressure ring (320) protrudes from the top of the first protruding portion (311).

7. The press-fit component according to claim 6, characterized in that: The top of the plug pad (330) protrudes from the top of the first protruding portion (311).

8. The press-fit component according to claim 5, characterized in that: The top of the pressing ring (320) and the first protruding portion (311) are in contact with the top wall of the press-fitting cap (220).

9. A processing device, characterized in that: The invention comprises a press machine (100) and a press-fit component (200) according to any one of claims 1 to 8; the press machine (100) comprises: A press base (110), wherein the press-fitting component (200) is limited to the press base (110); The press body (130) is disposed on the press base (110) and is arranged corresponding to the press-fitting component (200) and is used to apply pressure to the press-fitting cap (220) to press-fit the plug component (300).

10. The processing device according to claim 9, characterized in that: The press base (110) is provided with a second limiting groove (111), and the press-fitting component (200) is limited in the second limiting groove (111).

Images