High-sealing-performance oil plug bolt

Abstract

The utility model discloses a high-sealing-performance oil plug bolt which comprises a screw head, a bearing ring is arranged at the bottom of the screw head, a screw portion is arranged at the bottom of the bearing ring, and a bottom column is arranged at the bottom of the screw portion. According to the scheme, in the production process of the oil plug bolt with the high sealing performance, cutting machining is carried out under the condition that the oil plug bolt is not punched through a three-axis hob type cutting method, so that the sealing performance and the plane perpendicularity of the oil plug bolt are greatly improved, and in the punching process of the oil plug bolt, if a gap is adjusted improperly, the oil plug bolt can be prevented from being damaged. In addition, burrs of the oil plug bolt are increased, a cutter is needed to be used for removing the burrs subsequently, and secondary treatment of the burrs can be avoided by adopting a hob type cutting method.

Description

Technical Field

[0001] This utility model relates to the field of oil plug bolt technology, and more specifically, to a high-sealing oil plug bolt. Background Technology

[0002] Oil plug bolts are industrial fasteners used to seal oil circuit systems. They belong to the screw category and are mainly used for sealing and managing devices such as cylinders, hydraulic stations, and gearboxes in spacecraft, ships, automobiles, and machinery. Materials include carbon steel, alloy steel, and stainless steel (such as 304 / 316). Based on structure, they can be divided into internal and external hexagonal plugs, shouldered spiral plugs, and other types.

[0003] The existing oil plug bolts are produced using a cold heading machine, which is used to cold press metal wire into bolt blanks through a mold. After spheroidizing annealing to improve the plasticity of the material, the initial shape is formed by the cold heading process. However, the extrusion process will cause the oil plug bolt to deform and bend, thereby reducing the perpendicularity of the oil plug bolt plane, which will affect the accuracy and final quality of the product. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-sealing oil plug bolt to solve the problem that the plane perpendicularity of the oil plug bolt is reduced during the extrusion process, thereby affecting the accuracy and final quality of the product.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-sealing oil plug bolt, including a screw head, a receiving ring at the bottom of the screw head, a screw portion at the bottom of the receiving ring, and a bottom post at the bottom of the screw portion.

[0006] Preferably, a square groove is formed at the top of the screw head, the square groove is in the shape of a regular hexagon, and the height of the screw head is 6mm.

[0007] Preferably, the surface of the screw section is provided with fine grooves, and the height of the screw section is 8mm.

[0008] Preferably, the height of the receiving ring is 1.5 mm and the outer diameter of the receiving ring is 10 mm.

[0009] Preferably, the height of the base post is 2.5 mm and the outer diameter of the base post is 3.5 mm.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] In the above scheme, the high-sealing oil plug bolt is machined by a three-axis hobbing cutter during the production process without stamping. This greatly increases the sealing performance and perpendicularity of the oil plug bolt to the plane. If the gap is not properly adjusted during the stamping process, it will also lead to an increase in burrs on the oil plug bolt, which will need to be removed with a tool later. The hobbing cutter method can avoid the need for secondary burr treatment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a bottom view of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the screw head and receiving ring structure of this utility model.

[0015] The attached diagram is labeled as follows: 1. Screw head; 2. Receiving ring; 3. Square groove; 4. Screw section; 5. Fine groove; 6. Bottom post. Detailed Implementation

[0016] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0017] As attached Figure 1 To be continued Figure 3 The present invention provides a high-sealing oil plug bolt, including a screw head 1, a receiving ring 2 at the bottom of the screw head 1, a screw part 4 at the bottom of the receiving ring 2, and a bottom post 6 at the bottom of the screw part 4.

[0018] The top of the screw head 1 is provided with a square groove 3, which is a regular hexagon. The height of the screw head 1 is 6mm.

[0019] Specifically, during the machining process of the square groove 3 of the screw head 1, the bottom of the oil plug bolt prototype will be clamped and fixed inside the machine, and the three-axis hobbing cutter inside the equipment will cut the screw head 1 to replace the stamping method.

[0020] The screw part 4 has fine grooves 5 on its surface and the screw part 4 has a height of 8mm.

[0021] The height of the receiving ring 2 is 1.5mm, and the outer diameter of the receiving ring 2 is 10mm.

[0022] The height of the base post 6 is 2.5mm, and the outer diameter of the base post 6 is 3.5mm.

[0023] Specifically, the oil plug bolt is made entirely of stainless steel, and the screw head 1, the receiving ring 2, the screw part and the bottom post 6 are all made of the same material.

[0024] The working process of this utility model is as follows:

[0025] During the production of this high-sealing oil plug bolt, the operator first places one side of the prototype oil plug bolt into the processing equipment for fixation. A three-axis hobbing cutter method is then used to cut the surface of the oil plug bolt, creating a square groove 3 on the top of the bolt and fine grooves 5 on the screw section 4. Since the cutting is performed without stamping the oil plug bolt, the surface is not deformed or cracked due to stamping, significantly increasing the sealing performance and perpendicularity to the plane. During stamping, improper gap adjustment can lead to increased burrs on the oil plug bolt, requiring subsequent removal of these burrs using a cutting tool. The hobbing cutter method removes these burrs during the cutting process, avoiding the need for secondary burr removal.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-sealing oil plug bolt, comprising a screw head (1), characterized in that: The bottom of the screw head (1) is provided with a receiving ring (2), the bottom of the receiving ring (2) is provided with a screw part (4), and the bottom of the screw part (4) is provided with a bottom post (6).

2. The high-sealing oil plug bolt according to claim 1, characterized in that: The top of the screw head (1) is provided with a square groove (3), the square groove (3) is in the shape of a regular hexagon, and the height of the screw head (1) is 6mm.

3. The high-sealing oil plug bolt according to claim 1, characterized in that: The surface of the screw part (4) is provided with fine grooves (5), and the height of the screw part (4) is 8mm.

4. The high-sealing oil plug bolt according to claim 1, characterized in that: The height of the receiving ring (2) is 1.5 mm, and the outer diameter of the receiving ring (2) is 10 mm.

5. The high-sealing oil plug bolt according to claim 1, characterized in that: The height of the bottom post (6) is 2.5 mm, and the outer diameter of the bottom post (6) is 3.5 mm.

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