Composite conical threading die with self-lubricating oil duct structure

Abstract

The utility model discloses a composite conical threading die with a self-lubricating oil duct structure. The composite conical threading die comprises a threading die body, a dust guide groove is formed in the surface of the threading die body, a dust discharge inclined groove is formed in the surface of the threading die body, a threaded groove is formed in the inner wall of the threading die body, and a mounting groove is formed in the surface of the threading die body. The lubricating assembly is arranged on the inner wall of the threading die body, and the lubricating assembly is used for lubricating the composite conical threading die when the composite conical threading die works. According to the composite conical threading die with the self-lubricating oil channel structure, the lubricating assembly is arranged, lubricating oil is continuously output through the lubricating groove, a micro-channel and a surface notch groove can be used for guiding the lubricating agent to the position near a cutting edge through capillary oil guiding, it is avoided that lubricating grease is thrown outwards by centrifugal force in the rotating state, and the lubricating oil can be really brought to the position of a center cutting point; and the device can stably output lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of die technology, specifically a composite conical die with a self-lubricating oil passage structure. Background Technology

[0002] Dies can be used as thread-machining tools for machining or correcting external threads.

[0003] Patent CN213003124U discloses a guide die. The die body has a guide structure with a guide hole. The axis of the guide hole is coaxial with the axis of the die thread on the die body. The diameter of the guide hole matches the major diameter of the die thread on the die body. The guide structure avoids the chip removal holes on the die body. A cutting cone is ground at the connection between the guide hole and the die thread. The guide structure on the die body, with its guide hole and coaxial axis, inherently provides a guiding function, ensuring that the axis of the guide hole is coaxial with the die thread axis during use, resulting in more precise guidance.

[0004] As shown in the above technology, a lack of lubricating oil can lead to direct metal-to-metal friction, rapid heat accumulation, and jamming of the cutting process. The depth of cut of the tapered structure gradually increases, and the resistance is greater than that of ordinary straight threads. The lack of lubrication is particularly fatal, as chips adhere and clog. In the absence of oil, metal chips are not easy to be discharged and are easily stuck in the cutting groove. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a composite conical die with a self-lubricating oil channel structure. This solves the problems that lack of lubricating oil can lead to direct metal-to-metal friction, rapid heat accumulation, and jamming during the cutting process. The conical structure itself gradually increases the depth of cut, resulting in greater resistance than ordinary straight threads. The lack of lubrication is particularly fatal, causing chips to adhere and clog. In the absence of oil, metal chips are not easily discharged and are easily stuck in the cutting groove.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite conical die with a self-lubricating oil passage structure, comprising:

[0007] The die body has a ash guiding groove on its surface, an ash discharge inclined groove on its surface, a threaded groove on its inner wall, and an installation groove on its surface.

[0008] A lubrication assembly is disposed on the inner wall of the die body and is used for lubricating the composite conical die during operation.

[0009] Preferably, the lubrication assembly includes a storage groove disposed on the inner wall of the die body, the storage groove being cylindrical.

[0010] Preferably, one side of the storage tank is connected to a lubrication groove, which is a capillary groove.

[0011] Preferably, an annular plate is fixedly connected to one side of the inner wall of the storage tank, and the surface of the annular plate is treated with rust prevention.

[0012] Preferably, one side of the storage tank is connected to a feed trough, and the inner wall of the feed trough is provided with internal threads.

[0013] Preferably, the inner wall of the feed trough is threaded with a sealing cap, and the surface of the sealing cap is provided with anti-slip protrusions.

[0014] This invention provides a composite conical die with a self-lubricating oil passage structure. Compared with the prior art, it has the following advantages:

[0015] 1. This composite conical die with a self-lubricating oil channel structure utilizes the lubrication components and lubrication grooves to continuously output lubricating oil. Capillary oil guiding uses microchannels and surface grooves to guide the lubricant to the vicinity of the cutting edge, avoiding the centrifugal force from throwing the lubricating oil outward during rotation. It can truly bring the lubricant to the center cutting point, which can only be achieved through active or passive design methods such as the "capillary structure". It is suitable for low-to-medium speed manual or intermittent cutting, does not require complex equipment, has low manufacturing cost, is not affected by centrifugal force, and is easy to integrate into the small-sized structure of the die, ensuring that the device can stably output lubricating oil.

[0016] 2. This composite tapered die with a self-lubricating oil channel structure, utilizing the dust guide groove, avoids a sharp increase in cutting resistance and significantly reduces resistance, making it easier for operators to operate. It also prevents chip adhesion and blockage, effectively promoting chip discharge and preventing chips from getting stuck in the cutting groove. This solves the problem that insufficient lubrication can lead to direct metal-to-metal friction, rapid heat accumulation, and cutting process stagnation. Furthermore, the tapered structure itself gradually increases the depth of cut, resulting in greater resistance than ordinary straight threads, making lubrication deficiency particularly critical. Chips adhere and clog, and in the absence of oil, metal chips are difficult to discharge and easily get stuck in the cutting groove. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This utility model Figure 2 A magnified view of a section at point B.

[0021] In the diagram: 1. Main body of the die; 2. Ash guide groove; 3. Ash discharge chute; 4. Threaded groove; 5. Mounting groove; 6. Lubrication assembly; 61. Storage tank; 62. Lubrication tank; 63. Annular plate; 64. Feed chute; 65. Sealing cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides two technical solutions:

[0024] Example 1: A composite conical die with a self-lubricating oil passage structure, comprising:

[0025] The die body 1 has a dust guide groove 2 on its surface, which is arc-shaped. The die body 1 also has a dust discharge inclined groove 3 on its surface, a threaded groove 4 on its inner wall, and an installation groove 5 on its surface.

[0026] The lubrication component 6 is located on the inner wall of the die body 1. The lubrication component 6 is used to lubricate the composite conical die during operation. By utilizing the lubrication component 6, the lubrication groove 62 continuously outputs lubricating oil. Capillary oil guiding can use microchannels and surface grooves to guide the lubricant to the vicinity of the cutting edge, avoiding the centrifugal force from throwing the lubricating oil outward during rotation. It can truly bring the lubricant to the center cutting point. This can only be achieved by relying on active or passive design methods such as the "capillary structure". It is suitable for low-to-medium speed manual or intermittent cutting, does not require complex equipment, has low manufacturing cost, is not affected by centrifugal force, and is easy to integrate into the small-sized structure of the die, ensuring that the device can stably output lubricating oil.

[0027] Example 2 differs from Example 1 primarily in that it includes a composite conical die with a self-lubricating oil channel structure. The lubrication assembly 6 includes a storage groove 61 disposed on the inner wall of the die body 1. The storage groove 61 is cylindrical, and its inner wall is arc-shaped to reduce flow resistance. One side of the storage groove 61 is connected to a lubrication groove 62, which is a capillary groove with an inner diameter of approximately 0.4-0.8 mm, sufficient to generate capillary force without clogging, and capable of stably maintaining a small oil supply. An annular plate 63 is fixedly connected to one side of the inner wall of the storage groove 61. The surface of the annular plate 63 is rust-proofed. One side of the storage groove 61 is connected to a feed groove 64. The inner wall is threaded, and the inner wall of the feed groove 64 is threaded with a sealing cap 65. The surface of the sealing cap 65 is provided with anti-slip protrusions. With the setting of the dust guide groove 2, the cutting resistance is reduced significantly, avoiding a sharp increase in cutting resistance, making it convenient for operators to operate. At the same time, it avoids chip adhesion and blockage, effectively promoting chip discharge and preventing it from getting stuck in the cutting groove. It solves the problem that lack of lubricating oil can lead to direct metal-to-metal friction, rapid heat accumulation, and jamming of the cutting process. The tapered structure itself has a gradually increasing depth of cut, and the resistance is greater than that of ordinary straight threads. Lack of lubrication is particularly fatal, and chip adhesion and blockage occur. In the absence of oil, metal chips are not easy to discharge and are easy to get stuck in the cutting groove.

[0028] The main body of the die 1 is small in size, and lubricant needs to be added after each use.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] During operation, rotate the sealing cover 65 to separate it from the feed trough 64, add sufficient lubricating grease to the storage tank 61, then add some compressed air to the storage tank 61, and rotate the sealing cover 65 in reverse until one side of the sealing cover 65 is tightly fitted with the annular plate 63. Fix the mounting groove 5 on one side of the die body 1 to the auxiliary equipment. When the die body 1 is working as a whole, the thread groove 4 operates on the thread, the lubrication groove 62 draws the lubricating grease out of the storage tank 61, and the debris is discharged outward through the ash discharge chute 3 and the ash guide chute 2. When the device finishes working, restore the device to its original state.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite conical die with a self-lubricating oil passage structure, characterized in that, include: The die body (1) has a ash guiding groove (2) on its surface, an ash discharge inclined groove (3) on its surface, a threaded groove (4) on its inner wall, and an installation groove (5) on its surface. Lubrication component (6) is disposed on the inner wall of the die body (1) and is used for lubrication when the composite conical die is working.

2. The composite conical die with a self-lubricating oil passage structure according to claim 1, characterized in that: The lubrication assembly (6) includes a storage groove (61) disposed on the inner wall of the die body (1), the storage groove (61) being cylindrical.

3. A composite conical die with a self-lubricating oil passage structure according to claim 2, characterized in that: The storage tank (61) is connected to a lubrication tank (62) on one side, and the lubrication tank (62) is a capillary tank.

4. A composite conical die with a self-lubricating oil passage structure according to claim 2, characterized in that: An annular plate (63) is fixedly connected to one side of the inner wall of the storage tank (61), and the surface of the annular plate (63) is treated with rust prevention.

5. A composite conical die with a self-lubricating oil passage structure according to claim 2, characterized in that: The storage tank (61) is connected to a feed trough (64) on one side, and the inner wall of the feed trough (64) is provided with internal threads.

6. A composite conical die with a self-lubricating oil passage structure according to claim 5, characterized in that: The inner wall of the feed trough (64) is threaded with a sealing cover (65), and the surface of the sealing cover (65) is provided with anti-slip protrusions.

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