Novel PCD milling cutter structure

Abstract

The utility model relates to the field of cutters, in particular to a novel PCD milling cutter structure which comprises a cutter bar and a cutter head structure, the cutter head structure and the cutter bar are integrally formed, the cutter head structure is provided with a plurality of notch grooves with openings, and the openings of the notch grooves are located in the end, away from the cutter bar, of the cutter head structure. The end, deviating from the cutter bar, of the cutter head structure is in a cross dart shape, a ball groove is further formed in the center of the end, deviating from the cutter bar, of the cutter head structure, a first communicating hole is further formed in the center of the ball groove and sequentially penetrates through the cutter head structure and the cutter bar, and a plurality of second communicating holes evenly distributed are further formed in the wall face forming the ball groove. And the plurality of second communicating holes are communicated with the first communicating hole. By effectively utilizing the structural configuration of the cutter, the cutter has the advantages of convenience in use, capability of effectively reducing the temperature of the cutter and convenience in chip removal.

Description

Technical Field

[0001] This application relates to the field of cutting tools, and more specifically to a novel PCD end mill structure. Background Technology

[0002] The existing PCD end mill structure is as follows: Figure 4 The end structure shown is shaped like a cross-shaped dart, and the PCD end mill structure also has multiple evenly distributed chip removal grooves. Its local structure can be described as follows: Figure 5 As shown, the above structure suffers from chip clogging issues when the tool uses a large feed rate. Furthermore, the high temperatures caused by large feed rate machining can easily affect the cutting efficiency of the insert, and the external cutting fluid takes up considerable space. Therefore, there is a need for a new PCD end mill structure that is easy to use, effectively reduces tool temperature, and facilitates chip removal. Summary of the Invention

[0003] The main objective of this application is to provide a novel PCD end mill structure, wherein the novel PCD end mill structure can effectively utilize its own structural configuration to achieve the advantages of effectively reducing tool temperature and facilitating chip removal.

[0004] Another objective of this application is to provide a novel PCD end mill structure, wherein the novel PCD end mill structure includes a shank and a cutter head structure, the cutter head structure being integrally formed with the shank, and the cutter head structure having multiple notches with openings, the openings of the notches being located at the end of the cutter head structure opposite to the shank, and the end of the cutter head structure opposite to the shank being cross-shaped, and the center of the end of the cutter head structure opposite to the shank also having a ball groove, the center of the ball groove also having a first connecting hole, the first connecting hole sequentially penetrating the cutter head structure and the shank, the wall of the ball groove also having multiple evenly distributed second connecting holes, all of which are connected to the first connecting hole, wherein external cutting fluid can be guided to the ball groove through the aforementioned first connecting hole, and the periphery of the ball groove also has an annular guide groove and multiple drainage channels, the cutting fluid located in the ball groove sequentially flowing to the annular guide groove and drainage channels, and being guided to the notches of the cutter head structure, that is, reducing the temperature of the cutting tool at the cutter head structure through heat transfer, thereby avoiding the problem of tool sticking.

[0005] Another objective of this application is to provide a novel PCD end mill structure, wherein the novel PCD end mill structure is simple in structure, easy to operate, does not involve complex manufacturing processes and expensive materials, has high economic efficiency, and is easy to promote and use.

[0006] To achieve at least one of the above-mentioned objectives, this application provides a novel PCD end mill structure, wherein the novel PCD end mill structure includes:

[0007] The tool holder and tool head structure are integrally formed with the tool holder. The tool head structure has multiple notches with openings. The openings of the notches are located at the end of the tool head structure opposite to the tool holder. The end of the tool head structure opposite to the tool holder is shaped like a cross-shaped dart. The center of the end of the tool head structure opposite to the tool holder also has a ball groove. The center of the ball groove also has a first connecting hole. The first connecting hole passes through the tool head structure and the tool holder in sequence. The wall of the ball groove also has multiple evenly distributed second connecting holes, all of which are connected to the first connecting hole.

[0008] In one or more embodiments of this application, the notch has a first sidewall and a second sidewall, the first sidewall and the second sidewall are arranged perpendicularly, and each of the first sidewalls has a mounting groove with an opening, wherein a blade is also mounted at the mounting groove.

[0009] In one or more embodiments of this application, the outer wall of the ball groove further has an annular guide groove, which is connected to the ball groove.

[0010] In one or more embodiments of this application, a plug is also installed at the end of the second connecting hole near the end of the cutter head structure.

[0011] In one or more embodiments of this application, the plug further has a plurality of evenly distributed third connecting holes, and each of the plurality of third connecting holes is connected to the first connecting hole.

[0012] In one or more embodiments of this application, the cutter head structure has a plurality of evenly distributed drainage channels at the center of the end away from the cutter bar, and the plurality of drainage channels correspond one-to-one with the plurality of notch grooves. In addition, one end of the drainage channel is connected to the annular guide groove, and the other end is connected to the corresponding notch groove.

[0013] In one or more embodiments of this application, each of the second sidewalls further has a fourth connecting hole, and the plurality of the fourth connecting holes are connected to the first connecting hole, and the fourth connecting hole is also close to the bottom of the notch groove. Attached Figure Description

[0014] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0015] Figure 1 The figure shows a schematic diagram of a novel PCD end mill structure. Figure 1 .

[0016] Figure 2The figure shows a schematic diagram of a novel PCD end mill structure. Figure 2 .

[0017] Figure 3 The diagram shows a schematic of the plug's structure.

[0018] Figure 4 and Figure 5 The diagram illustrates the structure of an existing milling cutter. Detailed Implementation

[0019] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0020] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0021] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0023] Schematic illustration of a novel PCD end mill structure

[0024] refer to Figures 1 to 3 According to a preferred embodiment of the present invention, a novel PCD end mill structure is described as follows: Figure 1As shown, the novel PCD end mill structure includes a tool holder 10 and a tool head structure 20, wherein the tool head structure 20 is disposed on the tool holder 10, that is, the tool head structure 20 and the tool holder 10 are integrally formed.

[0025] Specifically, the cutter head structure 20 has a plurality of notches 201 with openings. The openings of the notches 201 are located at the end of the cutter head structure 20 away from the cutter bar 10, and the end of the cutter head structure 20 away from the cutter bar 10 is shaped like a cross-shaped dart.

[0026] Furthermore, the notch 201 has a first sidewall 21 and a second sidewall 22, the first sidewall 21 and the second sidewall 22 are arranged perpendicularly, and each of the first sidewalls 21 has a mounting groove 2101 with an opening. A blade 30 is also installed in the mounting groove 2101. The connection between the blade and the mounting groove 2101 can be implemented by welding or screw connection. If screw connection is used, a positioning hole needs to be opened in the mounting groove 2101 to fix the position of the blade 30 with the screw.

[0027] It should also be noted that the cutter head structure 20 has a ball groove 202 at its center away from the end of the cutter bar 10, and the outer wall of the ball groove 202 has an annular guide groove 203, which is connected to the ball groove 202. Specifically, the ball groove 202 can be implemented as a hemispherical groove 202, and the center of the ball groove 202 also has a first connecting hole 204. The first connecting hole 204 passes through the cutter head structure 20 and the cutter bar 10 in sequence. That is, it should be noted that external coolant passes through the first connecting hole 204 and is guided to the ball groove 202, and then comes into contact with the surface of the external workpiece. The wall surface forming the ball groove 202 also has a plurality of evenly distributed second connecting holes 205, all of which are connected to the first connecting hole 204. It is worth mentioning that a plug 40 can be installed on the end of the second connecting hole 205 near the end of the cutter head structure 20, that is, the coolant flows from the end of the first connecting hole 204 near the cutter bar 10 to the second connecting hole 205, and then enters the ball groove 202. The connection between the plug 40 and the first connecting hole 204 can be a threaded connection to limit the position of the plug 40.

[0028] Among them, such as Figure 3 As shown, the plug 40 also has a plurality of evenly distributed third connecting holes 401, and the plurality of third connecting holes 401 are all connected to the first connecting hole 204, that is, the flow direction of the coolant can also be from the end of the first connecting hole 204 near the tool bar 10 to the third connecting hole 401, and then enter the ball groove 202.

[0029] It is worth mentioning that the center of the end of the cutter head structure 20 away from the cutter bar 10 also has a plurality of evenly distributed drainage channels 206. The plurality of drainage channels 206 correspond one-to-one with the plurality of notch slots 201. In addition, one end of the drainage channel 206 is connected to the annular guide groove 203, and the other end is connected to the corresponding notch slot 201. That is, the coolant entering the ball groove 202 can be guided to the notch slot 201 through the drainage channel 206, so that the coolant can adhere to the metal scrap, thereby reducing the splashing of scrap during the machining process.

[0030] It should also be noted that each of the second sidewalls 22 also has a fourth connecting hole 207. The plurality of fourth connecting holes 207 are connected to the first connecting hole 204, and the fourth connecting hole 207 is also close to the bottom of the notch groove 201. That is, the coolant flows from the end of the first connecting hole 204 near the tool holder 10 to the fourth connecting hole 207 and enters the corresponding notch groove 201. It is worth mentioning that the coolant flowing to the fourth connecting hole 207 can flush away the metal scraps accumulated at the bottom of the notch groove 201, so that the notch groove 201 can effectively remove chips.

[0031] In summary, the novel PCD end mill structure based on the embodiments of this application has been clarified, which provides advantages such as ease of use, effective reduction of tool temperature, and convenient chip removal.

[0032] It is worth mentioning that, in the embodiments of this application, the novel PCD end mill structure is simple in structure, does not involve complex manufacturing processes or expensive materials, and has high economic efficiency. At the same time, for manufacturers, the novel PCD end mill structure provided in this application is easy to produce and has low cost, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A novel PCD milling tool construction characterised in that, The new PCD milling cutter structure comprises: A cutter stem and a cutter head structure, the cutter head structure is integrally formed with the cutter stem, and the cutter head structure has a plurality of notch slots with openings, the openings of the notch slots are located at the end of the cutter head structure away from the cutter stem, the end of the cutter head structure away from the cutter stem is in the shape of a cross-shaped dart, and the center of the end of the cutter head structure away from the cutter stem also has a ball groove, the center of the ball groove also has a first through hole, the first through hole sequentially penetrates the cutter head structure and the cutter stem, and the wall surface of the ball groove also has a plurality of uniformly distributed second through holes, and the plurality of second through holes are all in communication with the first through hole.

2. The new PCD milling cutter structure according to claim 1, wherein the notch slot has a first side wall and a second side wall, the first side wall and the second side wall are arranged vertically, and each of the first side walls has a mounting slot with an opening, and a blade is mounted at the mounting slot.

3. The new PCD milling cutter structure according to claim 2, wherein the outer wall of the ball groove also has an annular guide groove, and the annular guide groove is in communication with the ball groove.

4. The new PCD milling cutter structure according to claim 3, wherein the second through hole near the end of the cutter head structure also has a plug.

5. The new PCD milling cutter structure according to claim 4, wherein the plug also has a plurality of uniformly distributed third through holes, and the plurality of third through holes are also in communication with the first through hole.

6. The new PCD milling cutter structure according to claim 5, wherein the center of the end of the cutter head structure away from the cutter stem also has a plurality of uniformly distributed liquid discharge channels, the plurality of liquid discharge channels correspond to the plurality of notch slots one by one, and one end of the liquid discharge channel is in communication with the annular guide groove, and the other end is in communication with the corresponding notch slot.

7. The new PCD milling cutter structure according to claim 6, wherein each of the second side walls also has a fourth through hole, the plurality of fourth through holes are all in communication with the first through hole, and the fourth through hole is also near the bottom of the notch slot.

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