Novel cutting tool and numerical control machine tool

Abstract

The utility model relates to a novel cutting tool and a numerical control machine tool. The novel cutting tool comprises a tool handle and a tool bit connected with the tool handle. The tool bit is sequentially provided with a first cutting edge, a first chip groove, a second cutting edge and a second chip groove in the circumferential direction. The first cutting edge and the second cutting edge are arranged in a double-helix structure, and the first chip groove and the second chip groove are arranged in a double-helix structure. The first cutting edge comprises a first edge body and a second edge body connected with the first edge body, the thickness of the first edge body is larger than that of the second edge body, the second edge body is arranged close to the first chip groove, and the first edge body is arranged close to the second chip groove; the second cutting edge comprises a third edge body and a fourth edge body connected with the third edge body, the thickness of the third edge body is larger than that of the fourth edge body, the fourth edge body is arranged close to the second chip groove, and the third edge body is arranged close to the first chip groove. According to the novel cutting tool, chippings can be discharged in time when a product is cut, so that the surface quality of the product is improved, and the service life of the tool is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting tools for numerically controlled machine tools, in particular to a novel cutting tool and a numerically controlled machine tool. Background Art

[0002] A CNC machine tool is an automated machine tool equipped with a program-controlled system. This control system logically processes control codes or other symbolic instructions, decodes them into coded digital representations, and then inputs them into the CNC device via an information carrier. After processing, the CNC device issues various control signals to control the machine's movements, automatically machining parts to the shape and size specified in the drawings.

[0003] CNC machine tool cutting tools are tools with specific geometric shapes and cutting edges used in CNC machining. They are primarily used to remove excess material from workpieces to meet specific machining requirements. Previously, CNC machine tool cutting tools were unable to quickly remove the chips generated during cutting operations. The accumulated chips damaged the product's appearance and shortened the cutting tool's service life. Utility Model Content

[0004] Based on this, it is necessary to provide a new type of cutting tool and CNC machine tool to address the problem that the cutting tool of the CNC machine tool cannot quickly discharge the cutting debris during the cutting operation, the accumulated debris causes damage to the product appearance, and also shortens the service life of the cutting tool.

[0005] A new cutting tool comprises a tool holder and a tool head connected to the tool holder, wherein the tool head is provided with a first cutting edge, a first chip removal groove, a second cutting edge and a second chip removal groove in sequence along the circumferential direction;

[0006] The first cutting edge and the second cutting edge are arranged in a double helical structure, and the first chip removal groove and the second chip removal groove are arranged in a double helical structure;

[0007] The first cutting edge includes a first blade body and a second blade body connected to the first blade body, the thickness of the first blade body is greater than the thickness of the second blade body, the second blade body is arranged adjacent to the first chip groove, and the first blade body is arranged adjacent to the second chip groove;

[0008] The second cutting edge includes a third blade and a fourth blade connected to the third blade. The thickness of the third blade is greater than that of the fourth blade. The fourth blade is adjacent to the second chip groove, and the third blade is adjacent to the first chip groove.

[0009] The new cutting tool includes a shank and a cutting head connected to the shank, and the cutting head is provided with a first cutting edge, a first chip groove, a second cutting edge and a second chip groove in sequence along the circumferential direction; the first cutting edge and the second cutting edge are arranged in a double helix structure, and the first chip groove and the second chip groove are arranged in a double helix structure; the first cutting edge includes a first blade body and a second blade body connected to the first blade body, the thickness of the first blade body is greater than the thickness of the second blade body, the second blade body is arranged adjacent to the first chip groove, and the first blade body is arranged adjacent to the second chip groove; the second cutting edge includes a third blade body and a fourth blade body connected to the third blade body, the thickness of the third blade body is greater than the thickness of the fourth blade body, the fourth blade body is arranged adjacent to the second chip groove, and the third blade body is arranged adjacent to the first chip groove. When the new cutting tool is performing a cutting operation, the first blade body can guide the chips generated by cutting to the second blade body, and guide the chips generated by cutting to the first chip groove through the second blade body. The third blade body can guide the chips generated by cutting to the fourth blade body, and guide the chips generated by cutting to the second chip groove through the fourth blade body. Through the mutual cooperation of the first cutting edge, the first chip groove, the second cutting edge and the second chip groove, the chips generated by cutting can be quickly discharged, thereby preventing damage to the product surface and extending the service life of the tool.

[0010] In one embodiment, the end of the first cutting edge is provided with a first cutting surface, a second cutting surface and a third cutting surface, and the end of the first chip removal groove is provided with a first chip removal surface;

[0011] The first cutting surface, the second cutting surface, and the third cutting surface are respectively connected to the first chip removal surface.

[0012] In one embodiment, a first connecting groove is further provided at the end of the first cutting edge, and the first connecting groove respectively connects the first cutting surface, the second cutting surface, the third cutting surface and the end of the second chip removal groove.

[0013] In one embodiment, the end of the second cutting edge is provided with a fourth cutting surface, a fifth cutting surface and a sixth cutting surface, and the end of the second chip removal groove is provided with a second chip removal surface;

[0014] The fourth cutting surface, the fifth cutting surface, and the sixth cutting surface are respectively connected to the second chip removal surface.

[0015] In one embodiment, a second connecting groove is further provided at the end of the second cutting edge, and the second connecting groove is respectively connected to the fourth cutting surface, the fifth cutting surface, the sixth cutting surface and the end of the first chip removal groove.

[0016] In one embodiment, the helix angles of the first chip removal groove and the second chip removal groove are both 10°.

[0017] In one embodiment, the handle is cylindrical.

[0018] In one embodiment, the tool handle and the tool head are integrally formed.

[0019] A numerically controlled machine tool comprises the novel cutting tool mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a new cutting tool according to the present utility model;

[0021] Among them, 10 is the tool handle, 20 is the tool head, 21 is the first cutting edge, 22 is the first chip groove, 23 is the second cutting edge, 24 is the second chip groove, 211 is the first blade body, 212 is the second blade body, 213 is the first cutting surface, 214 is the second cutting surface, 215 is the third cutting surface, 216 is the first connecting groove, 221 is the first chip surface, 231 is the third blade body, 232 is the fourth blade body, 233 is the fourth cutting surface, 234 is the fifth cutting surface, 235 is the sixth cutting surface, 236 is the second connecting groove, and 241 is the second chip surface. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only."

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The utility model discloses a new type of cutting tool. Figure 1 As shown, the new cutting tool includes a tool holder 10 and a tool head 20 connected to the tool holder 10. The tool head 20 is provided with a first cutting edge 21, a first chip groove 22, a second cutting edge 23, and a second chip groove 24 in sequence along the circumference. The first cutting edge 21 and the second cutting edge 23 are arranged in a double helical structure, and the first chip groove 22 and the second chip groove 24 are arranged in a double helical structure. The first cutting edge 21 includes a first blade 211 and a second blade 212 connected to the first blade 211. The thickness of the first blade 211 is greater than that of the second blade 212. The second blade 212 is arranged adjacent to the first chip groove 22, and the first blade 211 is arranged adjacent to the second chip groove 24. The second cutting edge 23 includes a third blade 231 and a fourth blade 232 connected to the third blade 231 . The thickness of the third blade 231 is greater than that of the fourth blade 232 . The fourth blade 232 is adjacent to the second chip groove 24 , and the third blade 231 is adjacent to the first chip groove 22 .

[0026] When the new cutting tool is performing a cutting operation, the first blade body can guide the chips generated by cutting to the second blade body, and guide the chips generated by cutting to the first chip groove through the second blade body. The third blade body can guide the chips generated by cutting to the fourth blade body, and guide the chips generated by cutting to the second chip groove through the fourth blade body. Through the mutual cooperation of the first cutting edge, the first chip groove, the second cutting edge and the second chip groove, the chips generated by cutting can be quickly discharged, thereby preventing damage to the product surface and extending the service life of the tool.

[0027] The end of the first cutting edge 21 is provided with a first cutting surface 213, a second cutting surface 214, and a third cutting surface 215, and the end of the first chip flute 22 is provided with a first chip flute 221. The first cutting surface 213, the second cutting surface 214, and the third cutting surface 215 are respectively connected to the first chip flute 221. When machining a part, chips are first generated at the end of the first cutting edge 21 and can be quickly transferred from the first cutting surface 213, the second cutting surface 214, and the third cutting surface 215 to the first chip flute 221, thereby entering the first chip flute 22 and being discharged from the first chip flute 22. Furthermore, any two of the first cutting surface 213, the second cutting surface 214, and the third cutting surface 215 form a certain angle, making the end of the first cutting edge 21 sharper.

[0028] Furthermore, a first connecting groove 216 is provided at the end of the first cutting edge 21. The first connecting groove 216 respectively connects the first cutting surface 213, the second cutting surface 214, the third cutting surface 215, and the end of the second chip removal groove 24. It is understandable that when a large amount of chips is generated at the end of the first cutting edge 21, simply quickly transferring the chips from the first cutting surface 213, the second cutting surface 214, and the third cutting surface 215 to the first chip removal surface 221 often cannot meet the chip removal speed requirement. By providing the first connecting groove 216, the chips can be quickly transferred from the first cutting surface 213, the second cutting surface 214, and the third cutting surface 215 to the first connecting groove 216 at the same time, and discharged through the first connecting groove 216 and the second chip removal groove 24, thereby further accelerating the chip removal speed.

[0029] The end of the second cutting edge 23 is provided with a fourth cutting surface 233, a fifth cutting surface 234, and a sixth cutting surface 235. The end of the second chip flute 24 is provided with a second chip flute 241. The fourth cutting surface 233, the fifth cutting surface 234, and the sixth cutting surface 235 are respectively connected to the second chip flute 241. When machining a part, chips are first generated at the end of the second cutting edge 23. They are then quickly transferred from the fourth cutting surface 233, the fifth cutting surface 234, and the sixth cutting surface 235 to the second chip flute 241, where they enter the second chip flute 24 and are discharged from the second chip flute 24. Furthermore, any two of the fourth cutting surface 233, the fifth cutting surface 234, and the sixth cutting surface 235 form a certain angle, making the end of the second cutting edge 23 sharper.

[0030] Furthermore, a second connecting groove 236 is provided at the end of the second cutting edge 23. The second connecting groove 236 respectively connects the fourth cutting surface 233, the fifth cutting surface 234, the sixth cutting surface 235, and the end of the first chip removal groove 22. As can be understood, when a large amount of chips is generated at the end of the second cutting edge 23, simply quickly transferring the chips from the fourth cutting surface 233, the fifth cutting surface 234, and the sixth cutting surface 235 to the second chip removal surface 241 often cannot meet the chip removal speed requirement. By providing the second connecting groove 236, the chips can be quickly transferred from the fourth cutting surface 233, the fifth cutting surface 234, and the sixth cutting surface 235 to the second connecting groove 236 at the same time, and discharged through the first chip removal groove 22 via the second connecting groove 236, thereby further accelerating the chip removal speed.

[0031] The helix angles of the first and second chip flutes 22, 24 can be adjusted based on actual conditions. Preferably, the helix angles of both the first and second chip flutes 22, 24 are 10°. The helix angle refers to the angle between the helix line and a line perpendicular to the helix axis in a double helix structure. Practical experience has shown that a helix angle of 10° for both the first and second chip flutes 22, 24 facilitates rapid chip removal.

[0032] The shape of the handle 10 can be customized based on actual needs. Preferably, the handle 10 is cylindrical. This cylindrical shape facilitates gripping and control of the handle 10. Furthermore, the handle 10 and the cutter head 20 are integrally machined, making the structure of the novel cutting tool more stable.

[0033] The present invention also discloses a CNC machine tool including the aforementioned novel cutting tool. Due to the inclusion of the aforementioned novel cutting tool, the CNC machine tool can quickly discharge cutting debris when cutting products, thereby preventing damage to the product surface and extending the tool life.

[0034] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0035] The above-described embodiments merely represent several implementations of the present invention. 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 a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A new cutting tool, characterized in that: The tool comprises a tool handle and a tool head connected to the tool handle, wherein the tool head is provided with a first cutting edge, a first chip removal groove, a second cutting edge and a second chip removal groove in sequence along the circumferential direction; The first cutting edge and the second cutting edge are arranged in a double helical structure, and the first chip removal groove and the second chip removal groove are arranged in a double helical structure; The first cutting edge includes a first blade body and a second blade body connected to the first blade body, the thickness of the first blade body is greater than the thickness of the second blade body, the second blade body is arranged adjacent to the first chip groove, and the first blade body is arranged adjacent to the second chip groove; The second cutting edge includes a third blade and a fourth blade connected to the third blade. The thickness of the third blade is greater than that of the fourth blade. The fourth blade is adjacent to the second chip groove, and the third blade is adjacent to the first chip groove.

2. The new cutting tool according to claim 1, characterized in that: The end of the first cutting edge is provided with a first cutting surface, a second cutting surface and a third cutting surface, and the end of the first chip removal groove is provided with a first chip removal surface; The first cutting surface, the second cutting surface, and the third cutting surface are respectively connected to the first chip removal surface.

3. The new cutting tool according to claim 2, characterized in that: A first connecting groove is further provided at the end of the first cutting edge, and the first connecting groove respectively connects the first cutting surface, the second cutting surface, the third cutting surface and the end of the second chip removal groove.

4. The new cutting tool according to claim 3, characterized in that: The end of the second cutting edge is provided with a fourth cutting surface, a fifth cutting surface and a sixth cutting surface, and the end of the second chip removal groove is provided with a second chip removal surface; The fourth cutting surface, the fifth cutting surface, and the sixth cutting surface are respectively connected to the second chip removal surface.

5. The new cutting tool according to claim 4, characterized in that: A second connecting groove is further provided at the end of the second cutting edge, and the second connecting groove is respectively connected to the fourth cutting surface, the fifth cutting surface, the sixth cutting surface and the end of the first chip removal groove.

6. The new cutting tool according to any one of claims 1 to 5, characterized in that: The helix angles of the first chip removal groove and the second chip removal groove are both 10°.

7. The new cutting tool according to claim 6, characterized in that: The knife handle is cylindrical.

8. The new cutting tool according to claim 7, characterized in that: The knife handle and the knife head are integrally processed.

9. A CNC machine tool, characterized in that: The CNC machine tool comprises the novel cutting tool according to any one of claims 1 to 8.

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