Cutting nozzle suitable for flame and laser

Abstract

The utility model discloses a cutting nozzle suitable for flame and laser, which comprises a main body and a flame core, the main body is provided with a threaded hole, the top of the flame core is provided with a threaded part, the threaded part is matched with the threaded hole, the main body is provided with a main air inlet hole, the flame core is provided with a cutting gas hole, and the main air inlet hole is communicated with the cutting gas hole. The bottom end of the threaded hole is provided with a vertical hole, the outer side of the flame core is provided with a vertical part, the vertical part is located below the threaded part, the vertical part is matched with the vertical hole, and the outer diameter of the vertical part is consistent with the hole diameter of the vertical hole. By arranging the main body and the flame core, the two parts can be conveniently and independently machined, namely, the main air inlet hole and the cutting gas hole can be conveniently and respectively machined, and the machining difficulty of the holes can be easily reduced; therefore, after the threaded hole is in threaded fit with the threaded part, in order to prevent a fit clearance between the main body and the flame core, the flame core is tightly matched with the main body through the fit between the vertical part and the vertical hole, and the stability of the whole cutting nozzle is guaranteed.

Description

Technical Field

[0001] This utility model relates to a cutting nozzle, and more particularly to a cutting nozzle suitable for flame and laser. Background Technology

[0002] Currently, most cutting nozzles are either individual flame cutting nozzles or laser cutting nozzles. Once the cutting nozzle design is complete, it can only be used for a single cutting method. When changing to a different cutting method, a different cutting nozzle needs to be used. Furthermore, many cutting nozzles currently use a one-piece structure. For example, in the cutting nozzle and processing equipment disclosed in application number 202323225973.9, the channel inside the cutting nozzle extends from the top to the bottom. Due to the small diameter and large length of the orifice inside the nozzle, this increases the difficulty of machining the inner hole. Utility Model Content

[0003] The purpose of this invention is to provide a cutting nozzle suitable for flames and lasers that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, a cutting nozzle suitable for flames and lasers is provided, comprising a body and a flame core. The body is provided with a threaded hole, and the top of the flame core is provided with a threaded portion that mates with the threaded hole. The body is provided with a main air inlet, and the flame core is provided with a cutting gas hole. The main air inlet is connected to the cutting gas hole. The bottom end of the threaded hole is provided with a vertical hole, and the outer side of the flame core is provided with a vertical portion located below the threaded portion. The vertical portion mates with the vertical hole, and the outer diameter of the vertical portion is consistent with the diameter of the vertical hole.

[0005] The beneficial effects of this utility model are as follows: By providing a main body and a flame core, it is convenient to process the two parts separately, that is, to process the main air inlet and the cutting gas hole separately, thereby reducing the length of each hole and reducing the processing difficulty of each hole; therefore, when the threaded hole and the threaded part are threaded together, in order to prevent there from being a gap between the main body and the flame core, the vertical part and the vertical hole are fitted together, so that the flame core and the main body fit tightly, avoiding shaking and thus ensuring the stability of the entire cutting nozzle. By using a vertical threaded precision machining fit, the concentricity of the laser cutting nozzle is ensured, and at the same time, the internal and external gases (the external propane-oxygen mixture and the internal oxygen) do not cross-contaminate, ensuring the stability of the laser flame composite, that is, the stability of the wind line length.

[0006] In some implementations, a Laval nozzle is provided at the bottom of the flame core. The Laval nozzle and the flame core are integrally formed, and the Laval nozzle is connected to the cutting gas orifice. Therefore, the pressure and velocity of the cutting gas can be easily increased through the Laval nozzle, resulting in higher efficiency and better cutting quality than traditional flame cutting.

[0007] In some embodiments, the gas cutting orifice includes a tapered orifice and a straight orifice, with the straight orifice located at the bottom end of the tapered orifice. The diameter of the tapered orifice gradually decreases from top to bottom, and the Laval nozzle is located at the bottom end of the straight orifice. Thus, by providing a tapered orifice, as the orifice diameter decreases, the gas flow rate and gas pressure can be increased accordingly.

[0008] In some embodiments, a first annular portion is provided on the outer side of the main body, and a first air inlet is provided on the main body. One end of the first air inlet is located on the first annular portion, and the other end extends downward through the main body. The first air inlet is located on the outer periphery of the main air inlet. Thus, by providing the first annular portion, the opening of the first air inlet is facilitated, and the first air inlet facilitates the entry of other gases.

[0009] In some embodiments, a second annular portion is provided on the outer side of the main body, and an inclined portion is provided between the second annular portion and the main body. A second air inlet is provided on the inclined portion, and the second air inlet is connected to the first air inlet. Thus, by providing a second air inlet, it is convenient for the gas passing through to mix with the gas entering through the first air inlet.

[0010] In some embodiments, there are multiple first air inlets, and multiple second air inlets corresponding to the first air inlets. This allows the appropriate gas to be input through multiple channels, meeting the requirements for flame cutting.

[0011] In some implementations, the axis of the main air inlet is aligned with the axis of the cutting gas inlet. This helps maintain airflow stability, thereby ensuring the stability of the cutting nozzle during cutting.

[0012] In some embodiments, the bottom of the flame core is conical, and multiple guide grooves are provided on its outer periphery, evenly distributed on the outside of the Laval nozzle. Thus, by providing guide grooves, the gases entering through the first and second air inlets, after mixing and flowing out, can be uniformly guided to the Laval nozzle under the guidance of the guide grooves, facilitating airflow stability and improving the uniformity of flame combustion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a cutting nozzle suitable for flame and laser applications according to this utility model.

[0014] Figure 2 This is a cross-sectional structural diagram of a cutting nozzle suitable for flames and lasers according to this utility model.

[0015] Figure 3 This is a schematic diagram of the main body of a cutting nozzle suitable for flame and laser cutting according to this utility model.

[0016] Figure 4This is a schematic diagram of the structure of a flame core in a cutting nozzle suitable for flames and lasers according to this utility model. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Reference Figures 1-4 A cutting nozzle suitable for flame and laser applications includes a body 1 and a flame core 2. The body 1 has a threaded hole 11, and the flame core 2 has a threaded portion 21 at its top, with external threads that mate with the threaded hole 11. The body 1 has a main air inlet 12, and the flame core 2 has a cutting gas hole 22 connected to the main air inlet 12. A vertical hole 13 is located at the bottom of the threaded hole 11, and a vertical portion 23 is located on the outer side of the flame core 2, below the threaded portion 21. The vertical portion 23 mates with the vertical hole 13, and its outer diameter matches the diameter of the vertical hole 13. The axis of the main air inlet 12 and the axis of the cutting gas hole 22 are aligned, ensuring airflow stability.

[0019] When the main body 1 and the flame core 2 are assembled, the threaded portion 21 at the top of the flame core 2 is screwed into the threaded hole 11 of the main body 1. After the threaded portion 21 and the threaded hole 11 are fully screwed in, the outer wall of the vertical portion 23 is tightly attached to the inner wall of the vertical hole 13, thus achieving the engagement of the main body 1 and the flame core 2. Because the main body 1 and the flame core 2 are engaged by threads, and then engaged by the vertical portion 23 and the vertical hole 13, a tight fit is achieved, preventing gaps at the engagement point and thus contributing to the stability of the entire cutting nozzle.

[0020] Since the main body 1 and the flame core 2 are separate, it is convenient to process them separately during production, which facilitates the separate processing of the main air inlet 12 and the cutting gas hole 22, reducing the processing difficulty of each internal hole structure.

[0021] The bottom of the flame core 2 is provided with a Laval nozzle 24, which is integrally formed with the flame core 2. The Laval nozzle 24 is connected to the cutting gas hole 22.

[0022] A laser cutting channel can be formed through the main air inlet 12, the cutting gas inlet 22, and the Laval nozzle 24, which facilitates laser cutting of the material.

[0023] The cutting gas orifice 22 includes a tapered orifice 221 and a straight orifice 222. The straight orifice 222 is located at the bottom end of the tapered orifice 221, and the diameter of the tapered orifice 221 gradually decreases from top to bottom. The Laval nozzle 24 is located at the bottom end of the straight orifice 222. Through the tapered orifice 221, the gas entering from the main air inlet 12 can be pressurized and accelerated, allowing the gas to flow to the straight orifice 222 at a relatively fast speed. When the gas at the straight orifice 222 flows into the Laval nozzle 24, the flow velocity of the gas can be further greatly increased through the channel of the Laval nozzle 24, facilitating rapid cutting of the material.

[0024] The outer side of the main body 1 is formed with a first annular portion 14, and a first air inlet 15 is provided on the main body 1. One end of the first air inlet 15 is provided on the first annular portion 14, and the other end penetrates downward through the main body 1. The first air inlet 15 is located on the outer periphery of the main air inlet 12.

[0025] The outer side of the main body 1 is provided with a second annular portion 16, and an inclined portion 17 is provided between the second annular portion 16 and the main body 1. The inclined portion 17 is provided with a second air inlet 18, and the second air inlet 18 is connected to the first air inlet 15.

[0026] There are multiple first air inlets 15 and multiple second air inlets 18 corresponding to the first air inlets 15.

[0027] The bottom of the flame core 2 is conical, and there are multiple guide grooves 25 on the outer periphery, which are evenly distributed on the outside of the Laval nozzle 24.

[0028] In practical use, oxygen can be introduced into the first air inlet 15 and acetylene into the second air inlet 18. After the two gases are introduced, they mix in the lower vertical portion of the first air inlet 15 and are finally output through the bottom of the first air inlet 15. The mixed oxygen and acetylene flow downwards to the guide groove 25, where they are guided evenly to the Laval nozzle 24. This ensures a more uniform flame during flame cutting, achieving effective flame cutting. Therefore, this cutting nozzle is suitable for both flame cutting and laser cutting, meeting different application requirements.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A cutting nozzle suitable for flame and laser applications, characterized in that, The device includes a main body (1) and a flame core (2). The main body (1) has a threaded hole (11). The flame core (2) has a threaded part (21) at the top, which is engaged with the threaded hole (11). The main body (1) has a main air inlet (12). The flame core (2) has a cutting gas hole (22), which is connected to the cutting gas hole (22). The bottom end of the threaded hole (11) has a vertical hole (13). The outer side of the flame core (2) has a vertical part (23), which is located below the threaded part (21). The vertical part (23) is engaged with the vertical hole (13), and the outer diameter of the vertical part (23) is the same as the diameter of the vertical hole (13).

2. A cutting nozzle suitable for flame and laser cutting according to claim 1, characterized in that, The bottom of the flame core (2) is provided with a Laval nozzle (24), which is integrally formed with the flame core (2). The Laval nozzle (24) is connected to the cutting gas hole (22).

3. A cutting nozzle suitable for flame and laser cutting according to claim 2, characterized in that, The cutting gas hole (22) includes a conical hole (221) and a straight hole (222). The straight hole (222) is located at the bottom end of the conical hole (221). The diameter of the conical hole (221) gradually decreases from top to bottom. The Laval nozzle (24) is located at the bottom end of the straight hole (222).

4. A cutting nozzle suitable for flame and laser cutting according to any one of claims 1 to 3, characterized in that, The outer side of the main body (1) is provided with a first annular portion (14), and the main body (1) is provided with a first air inlet (15). One end of the first air inlet (15) is located on the first annular portion (14), and the other end penetrates downward through the main body (1). The first air inlet (15) is located on the outer periphery of the main air inlet (12).

5. A cutting nozzle suitable for flame and laser applications according to claim 4, characterized in that, The outer side of the main body (1) is provided with a second annular portion (16), and an inclined portion (17) is provided between the second annular portion (16) and the main body (1). The inclined portion (17) is provided with a second air inlet (18), and the second air inlet (18) is connected to the first air inlet (15).

6. A cutting nozzle suitable for flame and laser cutting according to claim 5, characterized in that, There are multiple first air inlets (15) and multiple second air inlets (18) corresponding to the first air inlets (15).

7. A cutting nozzle suitable for flame and laser applications according to claim 6, characterized in that, The axis of the main air inlet (12) and the axis of the cutting gas hole (22) are on the same straight line.

8. A cutting nozzle suitable for flame and laser cutting according to claim 6, characterized in that, The bottom of the flame core (2) is conical and has a guide groove (25) on its outer periphery. There are multiple guide grooves (25) and they are evenly distributed on the outside of the Laval nozzle (24).

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