Bowl-shaped plug press fitting tool

Abstract

The utility model relates to the technical field of engines, and particularly discloses a bowl-shaped plug press-fitting tool which comprises a press-fitting body, an adsorption part and an abutting part, the press-fitting body is provided with a press-fitting part, the press-fitting part can extend into a bowl-shaped plug so as to press the bowl-shaped plug into a position to be sealed, the adsorption part is connected to one end, facing the bowl-shaped plug, of the press-fitting part, and the abutting part abuts against the adsorption part. The adsorption piece is used for adsorbing the bowl-shaped plug, the abutting piece is installed on the outer side wall of the press-fitting part, and the abutting piece can abut against the inner side wall of the bowl-shaped plug. The adsorption part is arranged on the press fitting part to adsorb the bowl-shaped plug, the abutting part is arranged to abut against the inner side wall of the bowl-shaped plug, the bowl-shaped plug is prevented from falling off through the combined action of the adsorption part and the abutting part, the requirement for the material of the bowl-shaped plug does not exist, it is guaranteed that the bowl-shaped plug does not fall off, and meanwhile the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to a bowl-shaped plug press-fitting tooling. Background Art

[0002] As a common sealing part of an engine, the bowl-shaped plug is widely used on castings such as the engine block and cylinder head, and is installed in a press-fitting manner. Due to the complex structures of the engine block and cylinder head, during the process of press-fitting the bowl-shaped plug, the bowl-shaped plug needs to be inserted deep into the engine block or cylinder head. During this process, the bowl-shaped plug is likely to fall off from the press-fitting tooling, and due to the complex structure at the press-fitting position, the fallen bowl-shaped plug is not easy to take out, resulting in a reduction in press-fitting efficiency.

[0003] In response to this, there is provided an installation device for a bowl-shaped plug in the prior art, which adsorbs the bowl-shaped plug by setting a magnetic part to reduce the risk of falling off during the press-fitting process. However, this device is only applicable to iron bowl-shaped plugs and cannot adsorb bowl-shaped plugs made of non-magnetic metal materials such as stainless steel or copper, and its application range is relatively small. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bowl-shaped plug press-fitting tooling to solve the problem of the relatively small application range of the existing bowl-shaped plug installation device.

[0005] The utility model provides a bowl-shaped plug press-fitting tooling, which includes a press-fitting body, an adsorbing part and a pressing part. The press-fitting body is provided with a press-fitting part, and the press-fitting part can extend into the bowl-shaped plug to press the bowl-shaped plug into the position to be sealed. The adsorbing part is connected to one end of the press-fitting part facing the bowl-shaped plug, and the adsorbing part is used for adsorbing the bowl-shaped plug. The pressing part is installed on the outer side wall of the press-fitting part, and the pressing part can be in tight contact with the inner side wall of the bowl-shaped plug.

[0006] As a preferred technical solution of the bowl-shaped plug press-fitting tooling, the pressing part is an elastic part. When the press-fitting part extends into the bowl-shaped plug, the elastic part undergoes elastic deformation and is in tight contact with the inner side wall of the bowl-shaped plug.

[0007] As a preferred technical solution of the bowl-shaped plug press-fitting tooling, the elastic part is set as a spring clip. The spring clip extends along the axial direction of the press-fitting part, and both ends of the spring clip are respectively connected to the press-fitting part. When the press-fitting part extends into the bowl-shaped plug, the spring clip is compressed and is in tight contact with the inner side wall of the bowl-shaped plug.

[0008] As a preferred technical solution of the bowl-shaped plug press-fitting tooling, a plurality of spring clips are provided, and the plurality of spring clips are evenly distributed along the circumferential direction of the press-fitting part.

[0009] As a preferred technical solution of the bowl-shaped plug press-fitting tooling, the elastic part is set as an elastic ring. The press-fitting part is provided with an annular groove for accommodating the elastic ring. The elastic ring is fixedly arranged in the annular groove and partially protrudes from the annular groove. When the press-fitting part extends into the bowl-shaped plug, the elastic ring is compressed and is in tight contact with the inner side wall of the bowl-shaped plug.

[0010] As a preferred technical solution of the bowl-shaped plug pressing tooling, the adsorbing member is a magnetic member, and the pressing portion is provided with a receiving hole for receiving the magnetic member. The magnetic member is fixedly arranged in the receiving hole and can adsorb the bottom wall of the bowl-shaped plug.

[0011] As a preferred technical solution of the bowl-shaped plug pressing tooling, the magnetic member is arranged at an interval from the bottom wall of the bowl-shaped plug.

[0012] As a preferred technical solution of the bowl-shaped plug pressing tooling, the adsorbing member is a suction cup. The pressing portion is provided with a receiving hole for receiving the suction cup. The suction cup base of the suction cup is fixedly arranged in the receiving hole. When the pressing portion extends into the bowl-shaped plug, the body of the suction cup adsorbs on the bottom wall of the bowl-shaped plug.

[0013] As a preferred technical solution of the bowl-shaped plug pressing tooling, the pressing body includes a base and a pressing member that are detachably connected, and the pressing portion is arranged on the pressing member.

[0014] As a preferred technical solution of the bowl-shaped plug pressing tooling, the pressing member is threadedly connected to the base.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model provides a bowl-shaped plug pressing tooling. By arranging an adsorbing member on the pressing member to adsorb the bowl-shaped plug, and arranging a pressing member to abut against the inner side wall of the bowl-shaped plug, the bowl-shaped plug is prevented from falling off by the combined action of the adsorbing member and the pressing member, and there is no requirement for the material of the bowl-shaped plug, which improves the applicable range while ensuring that the bowl-shaped plug does not fall off. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the bowl-shaped plug pressing tooling in an embodiment of the present utility model

[0018] Figure 2 It is a cross-sectional view of the bowl-shaped plug pressing tooling in an embodiment of the present utility model;

[0019] Figure 3 It is a cross-sectional view at the connection position of the pressing member and the base in an embodiment of the present utility model;

[0020] Figure 4 It is a cross-sectional view of the pressing member cooperating with the bowl-shaped plug in an embodiment of the present utility model;

[0021] Figure 5 It is a cross-sectional view of the pressing member in an embodiment of the present utility model.

[0022] In the figure:

[0023] 100, bowl-shaped plug;

[0024] 1. Base; 2. Press-fitting part; 21. Connection part; 22. Press-fitting part; 221. Accommodating hole; 23. Flange part; 3. Spring clip; 4. Magnetic part. Detailed implementation manner

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing 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 thus cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" 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, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and cannot be construed as a limitation of the present utility model.

[0029] The utility model provides a bowl-shaped plug press-fitting tooling for press-fitting a bowl-shaped plug 100 to positions such as the engine block or cylinder head that need to be sealed by the bowl-shaped plug 100. As Figures 1-5 shown, the bowl-shaped plug press-fitting tooling includes a press-fitting body, an adsorbing member, and a pressing member. The press-fitting body includes a detachable base 1 and a press-fitting member 2, and a press-fitting portion 22 is provided on the press-fitting member 2. The press-fitting portion 22 can extend into the bowl-shaped plug 100 to press the bowl-shaped plug 100 into the position to be sealed. The adsorbing member is connected to one end of the press-fitting portion 22 facing the bowl-shaped plug 100, and the adsorbing member is used for adsorbing the bowl-shaped plug 100. The pressing member is installed on the outer side wall of the press-fitting portion 22, and the pressing member can be in tight contact with the inner side wall of the bowl-shaped plug 100. During the process of press-fitting the bowl-shaped plug 100, the bowl-shaped plug 100 is sleeved on the press-fitting portion 22, and the inner side wall of the bowl-shaped plug 100 is in tight contact with the pressing member installed on the outer side wall of the press-fitting portion 22, thereby reducing the risk of the bowl-shaped plug 100 falling off during the press-fitting process. And because the bowl-shaped plug 100 is in tight contact with the pressing member and adsorbed by the adsorbing member, the two methods act simultaneously and can effectively avoid falling off, and there is no restriction on the material. The bowl-shaped plug press-fitting tooling can be applied to bowl-shaped plugs 100 of various materials. The diameter of the press-fitting portion 22 extending into the bowl-shaped plug 100 is smaller than the inner diameter of the bowl-shaped plug 100. The pressing member is arranged on the outer side wall of the press-fitting portion 22, and its height is greater than the difference between the inner diameter of the bowl-shaped plug 100 and the diameter of the press-fitting portion 22, and the pressing member has a certain ability of elastic deformation. During the process of the press-fitting portion 22 extending into the bowl-shaped plug 100, the inner side wall of the bowl-shaped plug 100 is squeezed with the pressing member, and the pressing member deforms within the range of elastic deformation, so that there is a frictional force between the inner side wall of the bowl-shaped plug 100 and the pressing member, thereby reducing the risk of the bowl-shaped plug 100 falling off during the press-fitting process. After the bowl-shaped plug 100 is press-fitted, the outer side wall of the bowl-shaped plug 100 is in tight contact with the engine block or cylinder head, and the frictional force between the two is greater than the frictional force between the inner side wall of the bowl-shaped plug 100 and the pressing member, so that the bowl-shaped plug press-fitting tooling can be smoothly withdrawn to ensure the sealing effect of the bowl-shaped plug 100.

[0030] Furthermore, the base 1 is provided with a large-diameter end and a small-diameter end, and the press-fitting member 2 is connected to the small-diameter end. In this embodiment, the base 1 is preferably a stepped shaft structure, and the press-fitting member 2 is threadedly connected to the small-diameter end. During the press-fitting process, the diameter of the small-diameter end is smaller, and the required tool space is smaller to avoid interference. The end diameter of the large-diameter end is larger, which is convenient for hammering operations. Since the specifications of the bowl-shaped plugs 100 are different, when press-fitting bowl-shaped plugs 100 of different specifications, because the press-fitting member 2 is threadedly connected to the base 1, only by replacing the press-fitting member 2 can the press-fitting requirements of bowl-shaped plugs 100 of different specifications be met, and there is no need to replace the base 1, thereby improving the generalization degree of the structure.

[0031] Specifically, as Figures 2-5As shown in the figure, the press-fitting part 2 is provided with a connecting part 21 and a press-fitting part 22. The connecting part 21 is threadedly connected to the base 1, and the press-fitting part 22 is used to insert into the bowl-shaped plug 100 and perform a press-fitting operation. The connecting part 21 is provided with an external thread, and a threaded hole is correspondingly provided at the small-diameter end of the base 1. The connecting part 21 is fixedly connected to the base 1 through the threaded hole. In other embodiments, the connecting part 21 is sleeved on the small-diameter end of the base 1. The connecting part 21 is provided with an internal thread, and the outer side wall of the small-diameter end is provided with an external thread, which can also achieve a fixed connection. In this embodiment, the connecting part 21 and the base 1 are connected in the former way, on the one hand, reducing the requirement for radial space, and on the other hand, being beneficial to improving lightweight. Optionally, since the diameter of the connecting part 21 is smaller than the diameter of the small-diameter end of the base 1, the stress at the root of the connecting part 21, that is, the junction of the connecting part 21 and the press-fitting part 22, is relatively large during the press-fitting process and is prone to fatigue failure. Therefore, a flange part 23 can be provided between the connecting part 21 and the press-fitting part 22. After the connecting part 21 is threadedly connected to the small-diameter end of the base 1, the flange part 23 is closely attached to the small-diameter end of the base 1. The diameter of the flange part 23 is greater than or equal to the diameter of the small-diameter end of the base 1, thereby reducing the stress distribution at the root of the connecting part 21 to improve its fatigue strength.

[0032] Furthermore, as Figures 2-4 shown, the pressing member is an elastic member. When the press-fitting part 22 extends into the bowl-shaped plug 100, the elastic member undergoes elastic deformation and presses against the inner side wall of the bowl-shaped plug 100, thereby preventing the bowl-shaped plug 100 from falling off during the press-fitting process. In this embodiment, the elastic member is preferably a spring clip 3, and the spring clip 3 extends along the axial direction of the press-fitting part 2. The spring clip 3 is arranged on the outer side wall of the press-fitting part 22 of the press-fitting part 2, and both ends of the spring clip 3 are respectively connected to the press-fitting part 2. When the press-fitting part 2 extends into the bowl-shaped plug 100, the spring clip 3 is compressed, so that there is friction between the spring clip 3 and the inner side wall of the bowl-shaped plug 100, realizing pressing the bowl-shaped plug 100 against the press-fitting part 22. The spring clip 3 is a prior art, and its structure and installation method will not be described here.

[0033] Optionally, the spring card 3 can be set to one or more. The height of the spring card 3 is greater than the difference between the inner diameter of the bowl-shaped plug 100 and the outer diameter of the press-fitting portion 22. After the bowl-shaped plug 100 and the press-fitting portion 22 are fitted, the inner side wall of the bowl-shaped plug 100 presses against the spring card 3, and the spring card 3 is compressed within the range of elastic deformation, and the spring card 3 exerts an elastic force on the bowl-shaped plug 100. When the spring card 3 is set to one, under the elastic force of the spring card 3, on the one hand, the bowl-shaped plug 100 is in close contact with the spring card 3 and there is friction, and on the other hand, there is friction between the bowl-shaped plug 100 and the outer side wall of the press-fitting portion, thereby reducing the risk of falling off during the press-fitting process. When the spring card 3 is set to multiple, multiple spring cards 3 are distributed at intervals along the circumferential direction of the press-fitting portion 22. The inner side walls of the corresponding bowl-shaped plugs 100 are in close contact with multiple spring cards 3 at the same time, and there is friction between each spring card 3 and the inner side wall of the bowl-shaped plug 100. While reducing the risk of falling off during the press-fitting process, it can also ensure that the bowl-shaped plug 100 and the press-fitting portion 22 are coaxial and ensure the press-fitting accuracy. In this embodiment, the number of spring cards 3 is preferably three, and the three spring cards 3 are evenly distributed along the circumferential direction of the press-fitting part 2, so as to reduce the complexity of the structure on the premise of meeting the use requirements.

[0034] Optionally, in other embodiments, the elastic member can also be set as an elastic ring, and the elastic ring can be made of metal or rubber. The press-fitting portion 22 is provided with an annular groove for accommodating the elastic ring, and the elastic ring is fixedly arranged in the annular groove and partially protrudes from the annular groove. When the press-fitting portion 22 extends into the bowl-shaped plug 100, the elastic ring is compressed and abuts against the inner side wall of the bowl-shaped plug 100, so that the bowl-shaped plug 100 can also be prevented from falling off during the press-fitting process.

[0035] Furthermore, please refer to Figures 2-3 and combine with Figure 5, in this embodiment, the adsorbing member is preferably a magnetic member 4. Correspondingly, a receiving hole 221 for accommodating the magnetic member 4 is provided in the press-fitting portion 22. The axis of the receiving hole 221 is coaxial with the axis of the press-fitting portion 22. The magnetic member 4 is fixedly arranged in the receiving hole 221 and can adsorb the bottom wall of the bowl-shaped plug 100. The magnetic member 4 is protected by providing the receiving hole 221. For the iron bowl-shaped plug 100, during the installation process, it is also subjected to the magnetic force of the magnetic member 4, further reducing the risk of falling off during the press-fitting process. After the press-fitting is completed, the outer side wall of the iron bowl-shaped plug 100 is in interference connection with the machine body or the cylinder head, and the frictional force between the two is greater than the sum of the magnetic force received by the iron bowl-shaped plug 100 and the frictional force between its inner side wall and the abutting member, which can also ensure that the bowl-shaped plug press-fitting tooling can be smoothly withdrawn. The surface of the magnetic member 4 can be flush with or spaced from the top surface of the press-fitting portion 22, and both can achieve the adsorption of the iron bowl-shaped plug 100. The magnetic member 4 in this embodiment is a rotary body structure, and its axis is coaxial with the axis of the receiving hole 221. Thus, when adsorbing the bowl-shaped plug 100, the magnetic force acts in the axial direction of the bowl-shaped plug 100, and there is no radial component force, avoiding the radial offset of the bowl-shaped plug 100 and ensuring the press-fitting accuracy. For example, the magnetic member 4 in this embodiment is set as a magnetic screw, and the magnetic screw is screwed into the receiving hole 221 along the axis direction of the press-fitting portion 22, thereby realizing the adsorption of the iron bowl-shaped plug 100. In other embodiments, the adsorbing member can also be an annular magnet, whose axis is coaxial with the axis of the receiving hole 221, and the fastener passes through the through hole of the annular magnet to fix it on the press-fitting portion 22.

[0036] Specifically, as Figure 5 shown, the magnetic member 4 is spaced from the bottom wall of the bowl-shaped plug 100, so that the magnetic member 4 does not directly contact the bowl-shaped plug 100, and the magnetic force that needs to be overcome when withdrawing the bowl-shaped plug press-fitting tooling is smaller, thereby reducing the labor intensity of the operator.

[0037] Optionally, in other embodiments, for the bowl-shaped plug 100 with a closed bottom wall, the adsorbing member can also be set as a suction cup. A receiving hole for accommodating the suction cup is provided in the press-fitting portion 22, and the suction cup seat of the suction cup is fixedly arranged in the receiving hole. When the press-fitting portion 22 extends into the bowl-shaped plug 100, the body of the suction cup adsorbs on the bottom wall of the bowl-shaped plug 100, thereby similarly being able to avoid falling off during the press-fitting process.

[0038] When using the bowl-shaped plug pressing tooling in this embodiment to press-fit the bowl-shaped plug 100, first select the corresponding pressing part 2 according to the specification of the bowl-shaped plug 100 to be press-fitted. Screw the connecting part 21 of the pressing part 2 into the threaded hole at the small-diameter end of the base 1 until the flange part 23 is in close contact with the small-diameter end. Set the bowl-shaped plug 100 on the pressing part 22 and press it in with appropriate force so that the pressing part 22 extends into the bowl-shaped plug 100. After the bowl-shaped plug 100 is sent to the position to be press-fitted, use a pressing device or apply pressure to the large-diameter end of the base 1 by hammering to gradually press-fit the bowl-shaped plug 100 in place. Finally, pull out the bowl-shaped plug pressing tooling to complete the press-fitting operation of the bowl-shaped plug 100. By using the bowl-shaped plug pressing tooling in this embodiment, the risk of the bowl-shaped plug 100 falling off is effectively reduced during the press-fitting process, and it can be applied to bowl-shaped plugs 100 made of any material, and its applicable range is greatly improved compared with the prior art.

[0039] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation modes of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to list all the implementation modes here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Bowl-shaped plug press fitting, characterized in that: include: A press-fitting body, wherein the press-fitting body is provided with a press-fitting portion (22), and the press-fitting portion (22) can extend into the bowl-shaped plug (100) to press the bowl-shaped plug (100) into a position to be sealed; An adsorption member, the adsorption member being connected to one end of the press-fitting portion (22) facing the bowl-shaped plug (100), the adsorption member being used for adsorbing the bowl-shaped plug (100); A pressing piece, wherein the pressing piece is mounted on the outer side wall of the press-fitting portion (22), and the pressing piece can be pressed against the inner side wall of the bowl-shaped plug (100).

2. The bowl-shaped plug press-fitting tool according to claim 1, characterized in that: The pressing member is an elastic member. When the pressing portion (22) extends into the bowl-shaped plug (100), the elastic member undergoes elastic deformation and presses against the inner wall of the bowl-shaped plug (100).

3. The bowl-shaped plug press-fitting tool according to claim 2, characterized in that: The elastic member is configured as a spring card (3), and the spring card (3) extends along the axial direction of the press-fitting portion (22). Both ends of the spring card (3) are respectively connected to the press-fitting portion (22). When the press-fitting portion (22) extends into the bowl-shaped plug (100), the spring card (3) is compressed and pressed against the inner wall of the bowl-shaped plug (100).

4. The bowl-shaped plug press-fitting tool according to claim 3, characterized in that: The spring clips (3) are arranged in plurality, and the plurality of spring clips (3) are evenly distributed along the circumference of the press-fitting portion (22).

5. The bowl-shaped plug press-fitting tool according to claim 2, characterized in that: The elastic member is configured as an elastic ring, the press-fitting portion (22) is provided with an annular groove for accommodating the elastic ring, the elastic ring is fixedly disposed in the annular groove and partially protrudes from the annular groove, and when the press-fitting portion (22) extends into the bowl-shaped plug (100), the elastic ring is compressed and pressed against the inner wall of the bowl-shaped plug (100).

6. The bowl-shaped plug press-fitting tool according to claim 1, characterized in that: The adsorption member is a magnetic member (4), the press-fitting portion (22) is provided with a receiving hole (221) for receiving the magnetic member (4), and the magnetic member (4) is fixedly arranged in the receiving hole (221) and is capable of adsorbing the bottom wall of the bowl-shaped plug (100).

7. The bowl-shaped plug press-fitting tool according to claim 6, characterized in that: The magnetic member (4) is spaced apart from the bottom wall of the bowl-shaped plug (100).

8. The bowl-shaped plug press-fitting tool according to claim 1, characterized in that: The adsorption component is a suction cup, and the press-fitting portion (22) is provided with a receiving hole for accommodating the suction cup. The suction cup seat of the suction cup is fixedly arranged in the receiving hole. When the press-fitting portion (22) extends into the bowl-shaped plug (100), the body of the suction cup is adsorbed on the bottom wall of the bowl-shaped plug (100).

9. The bowl-shaped plug press-fitting tool according to any one of claims 1 to 8, characterized in that: The press-fitting body comprises a detachably connected base (1) and a press-fitting piece (2), and the press-fitting part (2) is provided with the press-fitting portion (22).

10. The bowl-shaped plug press-fitting tool according to claim 9, characterized in that: The press-fitting part (2) is threadedly connected to the base (1).

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