A tool structure

Abstract

This utility model relates to the field of mold processing technology, and more specifically, to a cutting tool structure. This utility model overcomes the problems of low processing efficiency of ball end mills or obvious tool marks and steps on the side surfaces of beveled end mills in existing technologies. The cutting tool consists of a cutting head and a shank. The cutting head is an irregularly shaped cutting edge, with one side having a 60° bevel angle and the other side having a 45° bevel angle. The cutting tool is used for machining workpieces. This cutting tool solves the problem of obvious steps on the side surfaces of beveled end mills, while simultaneously improving the processing efficiency of workpieces.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, and more specifically, to a cutting tool structure. Background Technology

[0002] The conventional method for machining the side facade of a workpiece is to use a ball end mill for face milling or a flat or bevel end mill for end milling. When using a ball end mill for face milling, the feed rate per pass is very limited. Taking a D60R30 ball end mill as an example, the D60R30 has a stepper of 2mm, meaning the maximum amount of material processed per pass is 2mm. For a 1m high facade, machining from top to bottom would require 500 cuts. A D20R10 ball end mill has a maximum stepper of only 0.8mm, resulting in even longer machining times and extremely low efficiency.

[0003] When machining with a flat or beveled cutter, the workpiece must first be relatively small to allow the five-axis machine tool head to be angled during machining. Secondly, the side profile to be machined must be at a certain height to ensure that the cutter head does not interfere with the base plate during machining. For profiles extending to the base plate, only the upper half can be machined, resulting in severe tool marks and poor surface finish of the mold. Utility Model Content

[0004] This invention overcomes the problems of low processing efficiency of ball end mills or obvious tool marks and steps on the side surface of beveled end mills in the prior art.

[0005] The purpose of this utility model is achieved as follows: a cutting tool structure, the cutting tool being composed of a cutting head and a cutting shank, the cutting head being an irregularly shaped cutting edge, one side of the cutting edge being a 60° beveled edge and the other side being a 45° beveled edge, the cutting tool being used for machining workpieces.

[0006] In one embodiment, the angle between the 60° beveled blade and the 45° beveled blade is a radius of R5.

[0007] In one embodiment, the blade needs to be hardened.

[0008] In one embodiment, the cutting edge length of the blade is 10 mm.

[0009] In one embodiment, the diameter of the handle is 25 mm.

[0010] In one embodiment, during machining, the 60° bevel cutting edge always maintains a machining amount less than that of a 45° bevel cutting edge.

[0011] This utility model achieves the following effects through optimization and improvement of the existing machining tool structure:

[0012] 1. Solve the problem of obvious tool marks after machining with existing tools and improve the surface quality of machined parts.

[0013] 2. The improved tooling step-in can reach 10mm, which is 5 times higher than the original step-in, significantly improving the machining efficiency of the workpiece, especially for the side and vertical surfaces.

[0014] 3. The swing angle of the five-axis machine tool is reduced. The maximum swing angle of the cutter head is 45°, which can meet the machining of all side surfaces. This improves the original side surface machining, which relied more on the swing angle of 90°. As a result, it can meet the machining of parts with larger contour dimensions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cutting tool process;

[0016] Figure 2 This is a schematic diagram of the cutting tool head structure;

[0017] 1-Workpiece, 2-Cutting tool, 3-Tool holder, 4-Tool head. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] This invention overcomes the problems of low efficiency in machining the side surfaces of parts with ball end mills or obvious tool marks and steps on the surface of side surfaces when machining with beveled end mills in the prior art.

[0021] The purpose of this utility model is achieved as follows: a cutting tool structure, comprising a cutting head and a shank, wherein the cutting head has an irregularly shaped cutting edge, one side of which is a 60° bevel angle and the other side is a 45° bevel angle, and the cutting tool is used for machining workpieces. The included angle between the 60° bevel angle and the 45° bevel angle is a radius of R5. The cutting edge needs to be hardened, the cutting edge length is 10mm, and the diameter of the shank is 25mm.

[0022] Specifically, the cutting tool described in this utility model is mainly an optimization of the original 45° beveled tool structure. For example... Figure 1As shown, the first step is to add a small 60° bevel at the tool tip to prevent the continuous machining at a 45° angle from creating a right-angle step on the workpiece. After adding the 60° bevel, the machining amount at the tool tip is less than the main machining amount, allowing for sufficient allowance for the transition in the second cut, which can cover the tool marks left by the first cut.

[0023] Secondly, an R5 rounded corner is made at the angle formed by the 60° beveled edge and the 45° beveled edge, and an R5 rounded corner is also made at the angle formed by the 45° beveled edge and the straight shank edge of the tool holder. This can effectively avoid tool marks and steps on the machined parts, ensure a smooth transition of all machined surfaces, and meet the subsequent toolpath machining allowance.

[0024] Finally, after hardening the cutting edge, the cutting edge length is increased, allowing the tool to continuously process the workpiece for a longer period of time, keeping the cutting edge sharp and improving the surface quality of the workpiece.

[0025] In one embodiment, the processed part 1 is a wooden mold.

[0026] During machining, the 60° beveled edge always maintains a machining amount less than that of a 45° beveled edge. Specifically, taking the machining of a straight side face as an example, the machine tool is tilted at 45°, ensuring the 45° beveled surface of the tool is parallel to the side face, achieving maximum contact between the tool 2 and the workpiece 1. At this point, the 60° beveled edge does not contact the workpiece. During machining, the 60° beveled edge always maintains a machining amount less than that of a 45° beveled edge, leaving two toolpath machining passes to cover the transition machining allowance for subsequent toolpath machining. In this way, each machining tool mark is completely covered by the next machining pass, and because all the tool edge angles are rounded, there are no tool marks or machining steps after machining, resulting in a smooth overall surface transition and improved surface quality. At the same time, the 45° beveled edge can achieve full-edge machining, thus the maximum machining step can reach 10mm, significantly increasing the machining speed of the side face of the workpiece and improving the overall mold machining efficiency.

[0027] This invention optimizes and improves the structure of existing machining tools, solving the problem of obvious tool marks after machining and improving the surface quality of machined parts. Simultaneously, the improved tool's machining stepover can reach 10mm, a five-fold increase compared to the original, significantly improving machining efficiency, especially for side profiles. By reducing the swing angle of the five-axis machine tool, a maximum tool head swing angle of 45° is sufficient for machining all side profiles, improving upon the previous method which relied heavily on a 90° swing angle, thus enabling the machining of parts with larger contour dimensions.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cutting tool structure, characterized in that, The cutting tool consists of a cutting head and a shank. The cutting head has an irregularly shaped cutting edge, with one side of the cutting edge having a 60° bevel angle and the other side having a 45° bevel angle. The cutting tool is used for machining workpieces.

2. The tool structure according to claim 1, characterized in that The angle between the 60° beveled blade and the 45° beveled blade is a radius of R5.

3. The tool structure according to claim 1, characterized in that The blade needs to be hardened.

4. The tool structure according to claim 1, wherein The blade has a cutting edge length of 10mm.

5. The knife structure of claim 1, wherein The diameter of the handle is 25mm.

6. The knife structure of claim 1, wherein During machining, the 60° beveled edge of the cutting tool always maintains a machining amount less than that of a 45° beveled edge.

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