Cutting tool

Abstract

The utility model relates to the technical field of machining tools, in particular to a cutting tool. Comprising a bearing rod and a connecting part, the diameter of the bearing rod corresponds to the inner diameter of the pipe fitting, so that the bearing rod extends into the pipe fitting; one end of the connecting part is connected with the end part of the bearing rod; and the other end of the connecting part is connected with the connecting flange. In the prior art, hollow pipe fittings can be effectively clamped, so that the machining requirement of laser cutting is met. However, when facing a pipe fitting subjected to a certain processing procedure, especially facing a pipe fitting needing to be axially cut, the clamping device is not suitable for the prior art due to the fact that the clamping device is not provided with an end part capable of being clamped. And meanwhile, the problem that the inner wall of the pipe fitting is easily damaged after the pipe fitting is cut through by the laser knife is difficult to avoid. Compared with the prior art, the pipe fitting connecting device has the advantages that the pipe fitting can be connected with the connecting flange, so that the connecting flange can be used for being connected with laser cutting equipment, and a clamping mode is not adopted. And meanwhile, the bearing rod can effectively shield the laser knife, so that the pipe fitting is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of processing tooling, in particular to a cutting tooling. Background Art

[0002] In order to produce the desired mechanical products, it is necessary to process the various parts that constitute the product itself, and the shapes of the parts vary according to actual needs. Among them, hollow tubular parts are a very common part. In order to process such parts, the processing techniques are also different. For example: grinding wheel cutting, circular saw cutting, laser cutting, etc. Laser cutting has gradually become the mainstream processing technology due to its high cutting accuracy and good cutting effect. In actual operation, in order to achieve the desired cutting effect, the pipe to be processed needs to be positioned in advance, which requires the use of corresponding clamping tooling.

[0003] The Chinese patent discloses a clamping tool for laser cutting of stainless steel pipes [application number: CN202221430431.8, publication number: CN217667241U], which includes: a mounting frame, a first bidirectional screw, a transmission block, a first motor, and a transmission mechanism. Although the technical solution of the patent can effectively position hollow tubular parts, in actual operation, the technical solution of the patent needs to clamp the end of the pipe first. At this time, the clamped end is blocked by the structure of the tool itself, so the end of the pipe cannot be processed by the laser cutting equipment. After the cutting is completed, the required part is cut from the pipe. Therefore, the technical solution of the patent is only applicable to original pipes that have not been processed at all. When facing pipes that have undergone a certain processing procedure, especially when facing pipes that need to be cut axially, the technical solution of the patent is not applicable because there is no area that can be clamped. At the same time, when the technical solution of the patent faces the situation where the pipe needs to be cut open, it is affected by the structure of the tool itself. After the laser knife cuts through the pipe, it is very easy to damage the inner wall of the pipe, resulting in waste. Utility Model Content

[0004] In view of the technical problems of the prior art, the utility model provides a cutting tool.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A cutting tool comprises: a bearing rod and a connecting part; the diameter of the bearing rod corresponds to the inner diameter of a pipe fitting so as to extend into the pipe fitting; one end of the connecting part is connected to the end of the bearing rod; and the other end of the connecting part is connected to a connecting flange.

[0007] In actual application, the bearing rod is extended into the pipe to be processed, and at the same time, the bearing rod is connected to the connecting flange through the connecting part. Thus, the pipe can be stably connected to the laser cutting equipment through the connecting flange. Therefore, the tooling can stably connect the pipe to the laser cutting equipment through the connecting flange. When facing a pipe that has undergone a certain processing procedure, even if there is no part on the pipe that can be clamped, the pipe can be effectively positioned. At the same time, the tooling will not block the pipe, so when it is necessary to cut the pipe axially, the tooling will not interfere with the cutting path. On the other hand, when the laser knife cuts through the pipe, the bearing rod will block the laser knife, thereby protecting the inner wall of the pipe to prevent the laser knife from damaging the inner wall of the pipe and causing waste.

[0008] Furthermore, a limiting protrusion is provided on the bearing rod; the limiting protrusion is respectively connected to both ends of the bearing rod; and the limiting protrusion protrudes from the outer surface of the bearing rod.

[0009] Furthermore, the diameter of the bearing rod is smaller than the inner diameter of the pipe fitting; and the diameter of the limiting protrusion corresponds to the inner diameter of the pipe fitting.

[0010] Furthermore, a slag groove is provided on the bearing rod; the slag groove corresponds to the cutting path of the pipe fitting.

[0011] Furthermore, it also includes a limiting portion; the limiting portion is arranged at one end of the bearing rod away from the connecting portion; and threads are provided on the limiting portion and the connecting portion.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The bearing rod can effectively protect the pipe fittings to prevent the laser knife from cutting the inner wall of the pipe fittings and causing waste.

[0014] The slag groove can effectively carry the slag splashed into the pipe fitting, thereby effectively preventing the slag from splashing onto the inner wall of the pipe fitting, thereby improving the cutting quality of the pipe fitting.

[0015] The tool is not connected to the pipe by clamping. Even if there is no area for clamping on the pipe, the tool can be connected to the pipe, and the tool will not interfere with the cutting path of the laser cutting equipment. Therefore, the tool can effectively adapt to pipes that have undergone certain processing procedures and pipes that need to be cut along the axial direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Overall structure diagram.

[0017] In the figure: 1, bearing rod; 11, limiting protrusion; 12, slag groove; 2, connecting part; 3, limiting part. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] A cutting tool comprises: a bearing rod 1, a connecting part 2, and a limiting part 3. The connecting part 2 is arranged at one end of the bearing rod 1, and the limiting part 3 is arranged at the other end of the bearing rod 1. The connecting part 2 and the limiting part 3 are both provided with threads. Thus, the connecting part 2 can be connected to a connecting flange. A nut can be installed on the limiting part 3.

[0020] Specifically, the diameter of the bearing rod 1 is smaller than the inner diameter of the pipe to be processed. The bearing rod 1 is also provided with a limiting protrusion 11 and a slag groove 12. The limiting protrusions 11 are respectively arranged at both ends of the bearing rod 1 and protrude from the outer surface of the bearing rod 1. Specifically, one of the limiting protrusions 11 is arranged at the connection between the bearing rod 1 and the connecting part 2. The other limiting protrusion 11 is arranged at the connection between the bearing rod and the limiting part 3. The diameter of the limiting protrusion 11 corresponds to the inner diameter of the pipe. Preferably, the diameter of the limiting protrusion 11 is equal to the inner diameter of the pipe. A slag groove 12 is also provided on the bearing rod 1. The slag groove 12 corresponds to the cutting path of the pipe. Preferably, the slag groove 12 extends from one end of the bearing rod 1 to the other end along the axial direction of the bearing rod 1. The number of slag grooves 12 is three and they are spiral.

[0021] In actual application, the connection part is connected to the connecting flange through the thread on the connection part 2, and then the tool is connected to the laser cutting equipment through the connecting flange. After the connection is completed, the pipe fitting to be processed is put on the bearing rod 1 so that the bearing rod 1 extends into the pipe fitting. At the same time, the position of the pipe fitting is adjusted so that the cutting path of the pipe fitting corresponds to the slag groove 12. In the process of the bearing rod 1 extending into the pipe fitting, because the diameter of the bearing rod 1 is smaller than the inner diameter of the pipe fitting, the diameter of the limiting protrusion 11 corresponds to the inner diameter of the pipe fitting, and the limiting protrusion 11 is limited to contact with the inner wall of the pipe fitting. Thereby, the friction force on the pipe fitting is reduced when the pipe fitting is put on the bearing rod 1. On the one hand, it is convenient for the operator to operate, and on the other hand, it can effectively avoid the wear of the inner wall of the pipe fitting by friction. When the position adjustment of the pipe fitting is completed, the two limiting protrusions 11 are respectively located at the two ends of the pipe fitting and fully fit with the inner wall of the pipe fitting, so that the pipe fitting is firmly positioned by the limiting protrusions 11, and the friction between the two is used to prevent the pipe fitting from uncontrollably rotating in the circumferential direction during subsequent processing. At this time, the nut is installed on the limiting portion 3, so that the nut is used to further position the pipe fitting, so as to prevent the pipe fitting from uncontrollably rotating in the axial direction during subsequent processing. Preferably, a corresponding stepped structure can be provided on the connecting portion 2 to cooperate with the nut to position the pipe fitting. At this point, the installation of the tooling and the pipe fitting is completed. At this point, the laser cutting equipment can be started to process the pipe fitting.

[0022] In particular, when faced with the situation where the pipe fitting needs to be cut, after the laser knife penetrates the pipe fitting, it will be blocked by the bearing rod 1. Therefore, the bearing rod 1 can effectively protect the pipe fitting to prevent the laser knife from cutting the inner wall of the pipe fitting and causing waste. At the same time, the essence of the cutting process of the laser knife is to melt the pipe fitting in the corresponding area. Therefore, an indefinite amount of slag will be sputtered during the cutting process. Among them, part of the slag is sputtered into the inside of the pipe fitting. Therefore, the slag sputtered into the inside of the pipe fitting can be effectively carried by the slag groove 12, thereby effectively avoiding the slag from sputtering onto the inner wall of the pipe fitting, thereby improving the cutting quality of the pipe fitting. On the other hand, based on the aforementioned connection method, the tooling is not connected to the pipe fitting in the form of clamping. Even if there is no area for clamping on the pipe fitting, the tooling can be connected to the pipe fitting, and the tooling will not interfere with the cutting path of the laser cutting equipment. Therefore, the tooling can effectively adapt to pipe fittings that have undergone certain processing procedures and pipe fittings that need to be cut axially.

[0023] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A cutting tool, characterized in that: include: A bearing rod (1) and a connecting portion (2); The diameter of the bearing rod (1) corresponds to the inner diameter of the pipe fitting so as to extend into the pipe fitting; One end of the connecting portion (2) is connected to the end of the bearing rod (1); The other end of the connecting portion (2) is connected to a connecting flange.

2. A cutting tool according to claim 1, characterized in that: The bearing rod (1) is provided with a limiting protrusion (11); The limiting protrusions (11) are respectively connected to the two ends of the bearing rod (1); The limiting protrusion (11) protrudes from the outer surface of the bearing rod (1).

3. A cutting tool according to claim 2, characterized in that: The diameter of the bearing rod (1) is smaller than the inner diameter of the pipe; The diameter of the limiting protrusion (11) corresponds to the inner diameter of the pipe.

4. A cutting tool according to claim 1, characterized in that: The bearing rod (1) is also provided with a slag groove (12); The slag groove (12) corresponds to the cutting path of the pipe.

5. A cutting tool according to claim 1, characterized in that: It also includes a limiting portion (3); The limiting portion (3) is arranged at an end of the bearing rod (1) away from the connecting portion (2); The limiting portion (3) and the connecting portion (2) are provided with threads.

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