Cylindrical drilling and milling cutter

Abstract

The utility model relates to a drilling and milling cylindrical cutter which comprises a cutter bar, a cutter handle and a slag breaking structure, the cutter handle and the cutter bar are fixedly connected together, a first cutting edge and a second cutting edge are arranged on the cutter bar, the first cutting edge and the second cutting edge are identical in structure, a slag discharging groove structure is arranged between the first cutting edge and the second cutting edge, and the slag breaking structure is arranged on the cutter bar. And the slag breaking structure is fixedly arranged in the slag discharging groove structure. The drilling and milling cylindrical cutter is simple in structure, suitable for machining of soft materials such as plastic, brass and aluminum, sharp in structure, provided with a plurality of cutting edges and provided with a slag breaking structure, so that drilling, slag discharging and cutting are easy, side edge milling is sharp, and the drilling and cutting integrated effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools, specifically to a drilling and milling cylindrical tool. Background Technology

[0002] Currently, the existing cutting tools are mainly single-flute end mills for machining. These single-flute end mills are mainly suitable for the production and processing of soft materials, plastics, copper and aluminum, etc. However, these single-flute end mills have many disadvantages: (1) When drilling, the cutting residue will be wrapped around the tool, affecting the cutting progress, accuracy and work efficiency; (2) Single-flute end mills are not durable. After multiple uses, the cutting edge will become dull, broken or have other problems; (3) The drilling resistance is high due to the problem of slag breakage; (4) Slag removal during drilling affects the slag breakage and cannot cut efficiently. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a drilling and milling cylindrical tool.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a drilling and milling cylindrical tool, comprising: a tool holder, a tool shank, and a slag-breaking structure, wherein the tool shank and the tool holder are fixedly connected together, the tool holder is provided with a first cutting edge and a second cutting edge, the first cutting edge and the second cutting edge have the same structure, a slag discharge groove structure is provided between the first cutting edge and the second cutting edge, and the slag-breaking structure is fixedly provided in the slag discharge groove structure.

[0005] Furthermore, the blade holder has a central axis, and the first cutting edge has a front angle and a rear angle. The front angle is the angle between the first tangent of the first cutting edge and the central axis of the blade holder, and the rear angle is the angle between the second tangent of the first cutting edge and the central axis of the blade holder. The front angle ranges from 12° to 17°, and the rear angle ranges from 20° to 27°.

[0006] Furthermore, the angle between the first tangent of the first cutting edge and the central axis of the cutting shank is 15°.

[0007] Furthermore, the angle between the second tangent of the first cutting edge and the central axis of the blade is 25°.

[0008] Furthermore, the first and second cutting edges are wound together in a spiral upward manner, and the slag discharge trough structure is a spiral groove.

[0009] Furthermore, the cutter bar has an end face, the slag-breaking structure is fixedly connected to the surface of the slag discharge trough structure, and the slag-breaking structure extends toward the end face of the cutter bar, and the slag-breaking structure and the end face of the cutter bar are flush.

[0010] Furthermore, the tool holder is provided with a crescent structure, which reduces cutting resistance.

[0011] Furthermore, the blade holder is also provided with a first blade and a second blade, the first blade is fixedly connected to the first blade, the second blade is fixedly connected to the second blade, and the first blade and the end face are flush, as are the second blade and the second blade and the end face.

[0012] The beneficial effects of this application are: the drilling and milling cylindrical tool provided by this application has a simple structure, and the drilling and milling tool is suitable for processing soft materials such as plastics, brass, aluminum and other materials. The drilling and milling tool has a sharp structure with multiple cutting edges and a slag-breaking structure, which makes it easy to remove slag and break the cutting edge during drilling. The side milling edge is sharp, achieving the effect of drilling and milling in one step. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a drilling and milling cylindrical tool provided by this utility model.

[0014] Figure 2 for Figure 1 The image shown is a partially enlarged view of a drilling and milling tool for cylindrical surfaces.

[0015] Figure 3 for Figure 1 The image shows a right view of a drilling and milling cylindrical tool.

[0016] Figure 4 for Figure 1 Another enlarged view of a drilling and milling cylindrical tool is shown. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0018] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0019] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0020] Please refer to Figure 1-3 This application provides a drilling and milling cylindrical tool (hereinafter referred to as "the tool"), which includes: a tool holder 1, a tool shank 2, and a slag-breaking structure 13. The tool shank 2 and the tool holder 1 are fixedly connected together. The tool holder 1 is provided with a first cutting edge 11 and a second cutting edge 12. The first cutting edge 11 and the second cutting edge 12 have the same structure. A slag discharge groove structure 19 is provided between the first cutting edge 11 and the second cutting edge 12. The slag-breaking structure 13 is fixedly disposed in the slag discharge groove structure 19.

[0021] In one embodiment of this application, please refer to Figure 1 The blade shank 1 has a central axis 15, and the first blade 11 has a front angle and a rear angle. The front angle is the angle a1 between the first tangent 16 of the first blade 11 and the central axis 15 of the blade shank 1, and the rear angle is the angle a2 between the second tangent 17 of the first blade 11 and the central axis 15 of the blade shank 1. The front angle a1 ranges from 12° to 17°, and the rear angle a2 ranges from 20° to 27°.

[0022] In one embodiment of this application, please refer to Figure 1 The angle between the first tangent 16 of the first blade 11 and the central axis 15 of the blade shank 1 is 15°.

[0023] In one embodiment of this application, please refer to Figure 1 The angle between the second tangent 17 of the first blade 11 and the central axis 15 of the blade 1 is 25°.

[0024] In one embodiment of this application, please refer to Figure 1 The first blade 11 and the second blade 12 are wound together in a spiral upward manner, and the slag discharge groove structure 19 is a spiral groove.

[0025] In one embodiment of this application, please refer to Figure 1The cutter bar 1 has an end face 18, the slag-breaking structure 13 is fixedly connected to the surface of the slag discharge trough structure 19, and the slag-breaking structure 13 extends toward the end face 18 of the cutter bar 1, and the slag-breaking structure 13 and the end face 18 of the cutter bar 1 are flush.

[0026] In one embodiment of this application, please refer to Figure 3 The tool holder 1 is provided with a crescent structure 14, which reduces the cutting resistance.

[0027] In one embodiment of this application, please refer to Figure 4 The blade holder 1 is also provided with a first cutting edge 110 and a second cutting edge 111. The first cutting edge 110 is fixedly connected to the first cutting edge 11, and the second cutting edge 111 is fixedly connected to the second cutting edge 12. The first cutting edge 110 is flush with the first cutting edge 11 and the end face 18, and the second cutting edge 111 is flush with the second cutting edge 12 and the end face 18.

[0028] The drilling and milling cylindrical tool provided in this application has a simple structure and is suitable for machining soft materials such as plastics, brass, and aluminum. The drilling and milling tool has a sharp structure with multiple cutting edges and a slag-breaking structure, which makes it easy to remove slag and break the cutting edge during drilling. The side milling edge is sharp, achieving the effect of drilling and milling in one step.

[0029] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A drill-mill cylindrical cutter characterized by, The utility model relates to a cutting tool, including: A cutter bar, a cutter handle and a slag breaking structure, the cutter handle and the cutter bar are fixedly connected together, the cutter bar is provided with a first cutting edge and a second cutting edge, the first cutting edge and the second cutting edge are the same structure, a slag discharge groove structure is arranged between the first cutting edge and the second cutting edge, and the slag breaking structure is fixedly arranged in the slag discharge groove structure.

2. The drill-mill cylindrical cutter according to claim 1, characterized in that, The cutter bar has a central axis, the first cutting edge has a rake angle and a relief angle, the rake angle is the included angle between the first tangent of the first cutting edge and the central axis of the cutter bar, and the relief angle is the included angle between the second tangent of the first cutting edge and the central axis of the cutter bar, wherein the range of the rake angle is 12°-17°, and the range of the relief angle is 20°-27°.

3. The drill-mill cylindrical cutter according to claim 2, characterized in that, The included angle between the first tangent of the first cutting edge and the central axis of the cutter bar is 15°.

4. The drill-mill cylindrical cutter according to claim 2, characterized in that, The included angle between the second tangent of the first cutting edge and the central axis of the cutter bar is 25°.

5. The drill-mill cylindrical cutter according to claim 1, characterized in that, The first cutting edge and the second cutting edge are wound together in a spiral upward manner, and the slag discharge groove structure is a spiral groove.

6. The drill-mill cylindrical cutter according to claim 1, characterized in that, The cutter bar has an end face, the slag breaking structure is fixedly connected to the surface of the slag discharge groove structure, the slag breaking structure extends to the end face of the cutter bar, and the slag breaking structure is flush with the end face of the cutter bar.

7. The drill-mill cylindrical cutter according to claim 1, characterized in that, The cutter bar is provided with a crescent structure, and the crescent structure reduces the cutting resistance.

8. The drill-mill cylindrical cutter according to claim 6, characterized in that, The cutter bar is also provided with a first cutting edge and a second cutting edge, the first cutting edge is fixedly connected to the first cutting edge, the second cutting edge is fixedly connected to the second cutting edge, and the first cutting edge is flush with the first cutting edge and the end face, and the second cutting edge is flush with the second cutting edge and the end face.

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