Cutting tool for digital cutting machine

Abstract

The utility model discloses a cutting tool for a digital cutting machine, and belongs to the technical field of cutting tools. Comprising a cutter handle head and an alloy cutter handle, and the end of the alloy cutter handle is provided with a first slope intersecting with a rotating shaft of the alloy cutter handle, a set of second slopes symmetrical about the rotating shaft and a cutting notch parallel to the rotating shaft; the symmetrical middle face of the second inclined faces is perpendicular to the first inclined faces and the cutting notch, the intersecting line of the first inclined faces and the side wall of the cutting notch does not coincide with the rotating shaft, and the depth of the cutting notch is smaller than the radius of the alloy cutter handle within the range of the symmetrical middle face and in the direction perpendicular to the rotating shaft. According to the cutting tool for the digital cutting machine, the problems that the cutting edge position of an existing cutting tool is large in radius, and the requirement for fine cutting is difficult to meet are solved.

Description

Technical Field

[0001] This utility model belongs to the field of cutting tool technology, and in particular relates to a cutting tool for a digital cutting machine. Background Technology

[0002] In digital cutting and processing, it is often necessary to round or bevel the corners of the material to meet the requirements of product appearance, safety and assembly.

[0003] Existing cutting tools have several problems. For example, under the ultimate strength of the cutting tool, existing tools can only guarantee normal wear when cutting chamfers and fillets with a radius of radius R0.5 or larger. However, for the fine cutting requirements of chamfers and fillets with a radius of radius R0.5 or even smaller, existing tools struggle to cut precisely to the predetermined dimensions close to the workpiece contour due to the large radius of rotation at the cutting edge. Furthermore, a large radius of rotation causes the contact point between the cutting edge and the workpiece to be relatively concentrated in a certain area during cutting, resulting in uneven cutting force distribution. During high-speed rotary cutting, this uneven cutting force can easily cause tool chatter, which accelerates tool wear, shortens tool life, and also roughens the cut surface, reducing the surface quality of the product.

[0004] Therefore, there is an urgent need for a cutting tool that can meet the requirements of precision cutting. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cutting tool for a digital cutting machine, which solves the problem that the existing cutting tool has a large radius of return at the cutting edge position and is difficult to meet the needs of fine cutting.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cutting tool for a digital cutting machine, including a tool holder head and an alloy tool holder, wherein the end of the alloy tool holder is provided with a first inclined surface intersecting the rotation axis of the alloy tool holder, a set of second inclined surfaces symmetrical along the rotation axis, and a cutting notch parallel to the rotation axis;

[0007] In this configuration, the symmetrical mid-plane of a set of second inclined planes is perpendicular to the first inclined plane and the cutting notch, and the intersection line of the first inclined plane and the sidewall of the cutting notch does not coincide with the rotation axis, and the depth of the cutting notch is less than the radius of the alloy tool holder within the range of the symmetrical mid-plane and in the direction perpendicular to the rotation axis.

[0008] Optionally, the angle between the first inclined plane and the rotation axis is 45°.

[0009] Optionally, in the same plane perpendicular to the rotation axis, there is a first common straight line between the inner wall of the cutting notch and the plane, and a second common straight line between the first inclined surface and the plane, and the distance between any point on the first common straight line and the rotation axis is greater than the distance between any point on the second common straight line and the rotation axis.

[0010] Optionally, the diameter of the alloy handle is 1mm, the depth of the cutting notch in the direction perpendicular to the rotation axis within the range of the symmetry median plane is 0.25mm, and the depth of the cutting notch in the direction parallel to the rotation axis is 0.7mm.

[0011] Optionally, an arc chamfer is arranged at the corner of the cutting notch.

[0012] Optionally, the handle head and the alloy handle are integrally formed.

[0013] Compared with the prior art, the utility model has the beneficial effects that: a group of second inclined surfaces can reduce the thickness of the end of the alloy handle, the edge part of the cutting notch parallel to the rotation axis can be used as a cutting edge of the material, the edge of the first inclined surface does not contact the material, when the cutter is in a certain intensity range, the cutting notch can reduce the rotary radius of the cutting edge, thereby meeting the operation requirement of smaller chamfer angle and chamfer, and the cutting tool can also be prevented from vibrating, and the service life of the cutting tool is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with the drawings and embodiments.

[0015] Fig. 1 is the structure schematic diagram in preferred embodiment of the utility model;

[0016] Fig. 2 is the structure schematic diagram in preferred embodiment of the utility model;

[0017] Fig. 3 is the structure schematic diagram in preferred embodiment of the utility model;

[0018] Wherein, 1, handle head;2, alloy handle;201, first inclined surface;202, second inclined surface;203, cutting notch;2031, arc chamfer. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and embodiments.

[0020] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] like Figs. 1-3 As shown, a cutting tool for a digital cutting machine includes a tool holder head 1 and an alloy tool holder 2. The end of the alloy tool holder 2 is provided with a first inclined surface 201 intersecting the rotation axis of the alloy tool holder 2, a set of second inclined surfaces 202 symmetrical along the rotation axis, and a cutting notch 203 parallel to the rotation axis.

[0022] Among them, the symmetrical mid-plane of a set of second inclined planes 202 is perpendicular to the first inclined plane 201 and the cutting notch 203. The symmetrical mid-plane is an imaginary plane. The set of second inclined planes is symmetrical along the symmetrical mid-plane. The intersection line of the sidewall of the first inclined plane 201 and the cutting notch 203 does not coincide with the axis of rotation. The depth of the cutting notch 203 is less than the radius of the alloy tool holder 2 within the range of the symmetrical mid-plane and in the direction perpendicular to the axis of rotation.

[0023] The cutting tool in this technical solution can be installed on a digital cutting machine and driven by the digital cutting machine to rotate at high speed. Specifically, a set of second bevels 202 can reduce the thickness of the end of the alloy tool holder 2. The cutting notch 203 parallel to the rotation axis has its edge portion serving as the cutting edge for cutting materials. The edge of the first bevel 201 does not contact the material. When the tool is within a certain strength range, the turning radius of the cutting edge can be reduced through the cutting notch 203, thereby meeting the operational requirements of smaller bevel angles and rounded corners. At the same time, it can also avoid cutting tool vibration and extend the life of the cutting tool.

[0024] The above, such as Fig. 2As shown, the included angle between the first inclined surface 201 and the rotation axis is 45°, and the first inclined surface 201 with an angle of 45° has good adaptability. Specifically, for soft materials, it can make the cutting tool cut into the material gently, avoiding excessive extrusion to cause material deformation; and for hard materials, it can make the first inclined surface 201 evenly cut the gap 203 as the cutting edge to bear the force, which helps to stably break and cut off the material and reduces the phenomenon of broken edge.

[0025] As shown above, Fig. 2 As shown, in the same plane perpendicular to the rotation axis, there is a first common straight line between the inner wall of the cutting gap 203 and the plane, and a second common straight line between the first inclined surface 201 and the plane, and the distance between any point on the first common straight line and the rotation axis is greater than the distance between the second common straight line and the rotation axis. So that when the alloy handle 2 rotates at high speed along the rotation axis, the cutting gap can cut the material as the cutting edge, and the edge of the first inclined surface is avoided to contact the material, thereby improving the quality of material cutting.

[0026] Further, an arc chamfer 2031 is arranged at the corner of the cutting gap 203, so that the entire edge part of the cutting gap 203 can cut the material as the cutting edge.

[0027] In the embodiment, the handle head 1 and the alloy handle 2 are integrally formed, so that the structural strength of the handle head 1 and the alloy handle 2 is higher. Meanwhile, in the technical solution, preferably, the diameter of the alloy handle 2 is 1 mm, the depth of the cutting gap 203 in the range of the symmetry plane and the direction perpendicular to the rotation axis is 0.25 mm, and the depth of the cutting gap 203 in the direction parallel to the rotation axis is 0.7 mm, that is, the rotary radius of the cutting gap 203 is 0.5 mm.

[0028] Working principle: the cutting tool can be installed on a digital cutting machine and can be driven by the digital cutting machine to rotate at high speed. A set of second inclined surfaces 202 can reduce the thickness of the end of the alloy handle 2, and the edge part of the cutting gap 203 parallel to the rotation axis can be used as the cutting edge for cutting the material, and the edge of the first inclined surface 201 does not contact the material. When the cutting tool is within a certain intensity range, the rotary radius of the cutting edge can be reduced through the cutting gap 203, thereby meeting the operation requirements of smaller chamfer angle and chamfer radius, and also avoiding the vibration of the cutting tool and prolonging the service life of the cutting tool.

[0029] Based on the ideal embodiment of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A cutting tool for a digital cutting machine, characterized in that: The utility model relates to a cutting tool, comprising a shank head (1) and an alloy shank (2), wherein the end of the alloy shank (2) is provided with a first inclined surface (201) intersecting with the rotation axis of the alloy shank (2), a group of second inclined surfaces (202) symmetric to the rotation axis, and a cutting notch (203) parallel to the rotation axis. The symmetry median plane of the group of second inclined surfaces (202) is perpendicular to the first inclined surface (201) and the cutting notch (203), the intersection line between the first inclined surface (201) and the side wall of the cutting notch (203) does not coincide with the rotation axis, and the depth of the cutting notch (203) in the direction perpendicular to the rotation axis is less than the radius of the alloy shank (2) within the range of the symmetry median plane.

2. The cutting tool for a numerical cutting machine according to claim 1, characterized in that: The included angle between the first inclined surface (201) and the rotation axis is 45 degrees.

3. The cutting blade for a digital cutting machine according to claim 1, characterized in that: In the same plane perpendicular to the rotation axis, there is a first common straight line between the inner wall of the cutting notch (203) and the plane, and a second common straight line between the first inclined surface (201) and the plane, wherein the distance between any point on the first common straight line and the rotation axis is greater than the distance between any point on the second common straight line and the rotation axis.

4. The cutting blade for a digital cutting machine according to claim 1, characterized in that: The diameter of the alloy shank (2) is 1mm, the depth of the cutting notch (203) in the direction perpendicular to the rotation axis is 0.25mm within the range of the symmetry median plane, and the depth of the cutting notch (203) in the direction parallel to the rotation axis is 0.7mm.

5. The cutting blade for a digital cutting machine according to claim 1, characterized in that: An arc chamfer (2031) is arranged at the corner of the cutting notch (203).

6. The cutting blade for a digital cutting machine according to claim 1, characterized in that: The shank head (1) and the alloy shank (2) are integrally formed.

Images