A high-efficiency milling cutter with face milling and side milling functions

Abstract

The application relates to a high-efficiency milling cutter with face milling and side milling functions. The high-efficiency milling cutter with the face milling and side milling functions comprises a cutter body, a bottom blade assembly, a peripheral blade assembly and a chip removal assembly, the bottom blade assembly is arranged at the bottom of the cutter body and comprises M bottom blade mechanisms arranged at intervals along the circumference of the cutter body, the peripheral blade assembly is arranged at the periphery of the cutter body and comprises N peripheral blade mechanisms arranged at intervals along the circumference of the cutter body, wherein M is different from N, and the chip removal assembly is arranged on the cutter body and comprises a plurality of chip removal grooves connected with at least one bottom blade mechanism or at least one peripheral blade mechanism. According to the high-efficiency milling cutter with the face milling and side milling functions, the bottom blade assembly is used for performing face milling, and the peripheral blade assembly is used for performing side milling. M is different from N, so that the milling pin efficiency of the bottom blade mechanism and the peripheral blade mechanism is different, the number of the bottom blade mechanism and the peripheral blade mechanism can be flexibly adjusted according to actual use requirements, and the machining potential of the milling cutter is exerted.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to high-efficiency milling cutters with face milling and side milling functions. Background Technology

[0002] In the field of machining, milling accounts for a significant share and is one of the key machining methods in the mechanical manufacturing process. Face milling and side milling are common machining requirements in milling and are widely present in actual production scenarios.

[0003] In existing technologies, traditional milling cutters face numerous technical challenges when performing combined face milling and side milling. On one hand, some milling cutters are constrained by spatial factors such as tooling interference, weight limitations, and workpiece space interference, resulting in a strict limitation on the cutter diameter and thus preventing a reasonable increase in the number of cutting edges. Furthermore, existing cutters typically design the bottom cutting edge mechanism and the circumferential cutting edge mechanism to have the same number, causing the efficiency of bottom and side milling to become similar, resulting in low machining efficiency. This severely impacts the production efficiency and cost control of machining, failing to meet the high-efficiency requirements of modern machining. Utility Model Content

[0004] Based on this, a high-efficiency milling cutter with face milling and side milling functions is provided to solve the problem of low machining efficiency.

[0005] Embodiments of this application propose a high-efficiency milling cutter with face milling and side milling functions, comprising:

[0006] Knife body;

[0007] A bottom cutting edge assembly is disposed at the bottom of the blade body and includes M bottom cutting edge mechanisms arranged at circumferential intervals along the blade body;

[0008] A peripheral cutting edge assembly is disposed around the periphery of the blade body, comprising N peripheral cutting edge mechanisms arranged at intervals along the circumference of the blade body; wherein M and N are different.

[0009] A chip removal assembly is disposed on the blade body and includes a plurality of chip removal grooves, wherein the chip removal grooves are connected to at least one bottom cutting edge mechanism or at least one peripheral cutting edge mechanism.

[0010] In one embodiment, M is greater than N.

[0011] In one embodiment, the bottom cutting mechanism includes a bottom blade, and M bottom blades of the bottom cutting mechanism are arranged circumferentially spaced along the blade body.

[0012] In one embodiment, the M bottom blades are circumferentially non-uniformly distributed at the bottom of the blade body.

[0013] In one embodiment, the peripheral cutting mechanism includes a plurality of peripheral blades, wherein the plurality of peripheral blades in each peripheral cutting mechanism are arranged in a helical direction around the periphery of the blade body.

[0014] In one embodiment, the bottom blade is provided with a bottom cutting edge facing the bottom of the blade body;

[0015] The peripheral blade is provided with a first peripheral cutting edge facing the periphery of the blade body;

[0016] A portion of the bottom blade is arranged in the helical direction at the tail end of the peripheral cutting mechanism, and this portion of the bottom blade is provided with a second peripheral cutting edge facing the periphery of the blade body.

[0017] In one embodiment, the chip removal assembly includes:

[0018] N main chip removal grooves, wherein the main chip removal grooves are configured as spiral grooves, one end of which is located on the bottom end face of the blade body, and the other end extends along the spiral direction to the periphery of the blade body;

[0019] Each of the main chip removal grooves provides chip removal for one of the peripheral cutting mechanisms and the bottom blade disposed at the tail end of the peripheral cutting mechanism.

[0020] In one embodiment, the chip removal assembly includes:

[0021] P secondary chip removal grooves are configured as straight grooves, with one end located on the bottom end face of the blade body and the other end extending in a straight line to the periphery of the blade body.

[0022] Each of the secondary chip removal slots is used for chip removal from one of the bottom blades;

[0023] The P satisfies: P=MN.

[0024] In one embodiment, the high-efficiency milling cutter with face milling and side milling functions further includes:

[0025] The cooling assembly includes a main cooling channel and several sub-cooling channels. The main cooling channel is disposed on the tool body, and one end of each sub-cooling channel is connected to the main cooling channel, while the other end is connected to the chip removal groove.

[0026] Each of the bottom blades is provided with a corresponding cooling channel, and the outlet of the cooling channel is provided with a first preset distance from the corresponding bottom blade.

[0027] Each peripheral blade is provided with a corresponding cooling channel, and the outlet of the cooling channel is provided with a second preset distance from the corresponding peripheral blade.

[0028] In one embodiment, the high-efficiency milling cutter with face milling and side milling functions further includes:

[0029] A handle, wherein the knife body is disposed on the handle;

[0030] The tool holder includes a straight shank, a taper shank, a Morse taper shank, and a Capto shank.

[0031] According to embodiments of this application, a high-efficiency end mill with face milling and side milling functions has a bottom cutting edge assembly for face milling and a peripheral cutting edge assembly for side milling. Different configurations of M and N result in differences in milling efficiency between the bottom cutting edge and peripheral cutting edge mechanisms. The number of bottom cutting edge and peripheral cutting edge mechanisms can be flexibly adjusted according to actual usage requirements. If face milling efficiency needs to be prioritized, M can be increased; if side milling requires higher rigidity, the number of N can be optimized, fully exploring the potential of the high-efficiency end mill with face milling and side milling functions in different machining scenarios. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a high-efficiency milling cutter with face milling and side milling functions according to an embodiment of this application.

[0033] Figure 2 This is a side view of a high-efficiency milling cutter with face milling and side milling functions according to an embodiment of this application.

[0034] Figure 3 for Figure 2 Sectional view at point AA.

[0035] Figure 4 for Figure 2 Sectional view at point BB.

[0036] Figure 5 This is a schematic diagram of the cooling assembly in a high-efficiency milling cutter with face milling and side milling functions according to an embodiment of this application.

[0037] Figure label:

[0038] 100. Knife body;

[0039] 200. Bottom cutting edge assembly; 210. Bottom cutting edge mechanism; 211. Bottom blade; 2111. Bottom cutting edge; 2112. Second cutting edge;

[0040] 300. Peripheral cutting edge assembly; 310. Peripheral cutting edge mechanism; 311. Peripheral cutting edge; 3111. First periphery cutting edge;

[0041] 400. Chip removal assembly; 410. Main chip removal groove; 420. Secondary chip removal groove;

[0042] 500. Cooling components; 510. Main cooling channel; 520. Sub-cooling channels;

[0043] 600. Knife handle. Detailed Implementation

[0044] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0045] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0046] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0050] See Figure 1 At least one embodiment of this application proposes a high-efficiency milling cutter with face milling and side milling functions. The high-efficiency milling cutter with face milling and side milling functions includes a cutter body 100, a bottom cutting edge assembly 200, a peripheral cutting edge assembly 300, and a chip removal assembly 400. The bottom cutting edge assembly 200 is disposed at the bottom of the cutter body 100 and includes M bottom cutting edge mechanisms 210 arranged at intervals along the circumference of the cutter body 100. The peripheral cutting edge assembly 300 is disposed around the periphery of the cutter body 100 and includes N peripheral cutting edge mechanisms 310 arranged at intervals along the circumference of the cutter body 100. M and N are different. The chip removal assembly 400 is disposed on the cutter body 100 and includes a plurality of chip removal grooves. The chip removal grooves are connected to at least one bottom cutting edge mechanism 210 or at least one peripheral cutting edge mechanism 310.

[0051] According to the embodiments of this application, a high-efficiency milling cutter with face milling and side milling functions has a bottom cutting edge assembly 200 for face milling and a peripheral cutting edge assembly 300 for side milling. Different configurations of M and N result in differences in the milling efficiency of the bottom cutting edge mechanism 210 and the peripheral cutting edge mechanism 310. The number of bottom cutting edge mechanisms 210 and peripheral cutting edge mechanisms 310 can be flexibly adjusted according to actual usage requirements. If face milling efficiency needs to be prioritized, M can be increased; if side milling requires higher rigidity, the number of N can be optimized, fully exploring the potential of the milling cutter in different machining scenarios.

[0052] In some embodiments, M is greater than N, meaning the number of bottom cutting edge mechanisms 210 is greater than the number of peripheral cutting edge mechanisms 310. Too many peripheral cutting edge mechanisms 310 would weaken the structural strength of the cutter body 100's periphery, leading to tool vibration and deformation, affecting machining accuracy, and even damaging the tool. Increasing the number of bottom cutting edge mechanisms 210 improves the machining efficiency when milling pins on the bottom surface of the cutter, while maintaining the number of peripheral cutting edge mechanisms 310 around the cutter body 100 ensures the rigidity of the cutter. With a constant feed per tooth, increasing the number of bottom cutting edge mechanisms 210 reduces the corresponding machining time, significantly increasing face milling speed. Equipment occupancy time, energy consumption, and labor costs are all reduced accordingly. Simultaneously, tool rigidity is ensured, preventing accelerated tool wear due to vibration, indirectly extending tool life, further reducing overall costs, and improving machining efficiency. The number of peripheral cutting edge mechanisms 310 is not blindly increased; the structural strength of the cutter body 100's periphery is sufficient, and vibration and deformation during side milling are controlled within a reasonable range, ensuring the dimensional accuracy and surface roughness of side milling.

[0053] See Figure 2 and Figure 3 In some embodiments, the bottom cutting mechanism 210 includes a bottom blade 211, and the M bottom blades 211 of the M bottom cutting mechanisms 210 are arranged at circumferential intervals along the blade body 100.

[0054] In some embodiments, the M bottom blades 211 are non-uniformly distributed circumferentially at the bottom of the blade body 100, and adjacent bottom blades 211 have different angles to prevent resonance.

[0055] Specifically, when a milling cutter performs face milling, it rotates at high speed around its own axis. The bottom insert 211 periodically cuts into and out of the workpiece. For example, with each rotation, each bottom insert 211 will sequentially impact and cut the material. If the bottom inserts 211 are evenly distributed, then the time interval between each cut and the magnitude of the cutting impact force are fixed. This regular, periodic impact force will superimpose with the inherent vibration frequency of the milling cutter itself. When the two frequencies are close to or the same, resonance will occur, manifesting as severe vibration of the milling cutter, increased machining noise, and ultimately leading to ripples on the workpiece surface, dimensional accuracy deviations, and even accelerated wear of the inserts and deformation of the cutter body.

[0056] In the embodiments of this application, the M bottom cutting blades 211 are non-uniformly distributed circumferentially at the bottom of the cutter body 100, meaning the angular intervals between adjacent bottom cutting blades 211 are unequal. Due to the different blade interval angles, the timing of each blade's entry into the workpiece and the contact area with the cutting material are no longer uniform, resulting in irregular impact force magnitude and frequency. The originally uniform impact force becomes a scattered impact force, unable to form continuous, superimposed energy, thus making it difficult to trigger the inherent resonant frequency of the milling cutter or equipment. Non-uniform distribution allows the cutting force to be evenly distributed circumferentially, rather than concentrated at a few fixed angles. With non-uniform distribution, the impact force is dispersed to more different angles, avoiding local energy accumulation that could lead to vibration amplification.

[0057] By setting the above, resonance patterns and dimensional deviations on the workpiece surface are avoided, resulting in a smoother and more precise surface after milling; the impact and wear of vibration on the bottom insert 211 are reduced, preventing fatigue cracks in the tool body due to vibration and reducing tool wear costs; resonance is accompanied by strong noise, and suppressing resonance creates a more friendly machining environment and reduces vibration damage to the equipment.

[0058] See Figure 2 and Figure 4 In some embodiments, the peripheral cutting mechanism 310 includes a plurality of peripheral blades 311, and the plurality of peripheral blades 311 in each peripheral cutting mechanism 310 are arranged in a helical direction around the blade body 100.

[0059] See Figure 2 and Figure 3 In some embodiments, the bottom insert 211 is provided with a bottom cutting edge 2111 facing the bottom of the cutter body 100; the peripheral insert 311 is provided with a first peripheral cutting edge 3111 facing the periphery of the cutter body 100; a portion of the bottom insert 211 is arranged in the helical direction at the tail end of the peripheral cutting mechanism 310, and this portion of the bottom insert 211 is provided with a second peripheral cutting edge 2112 facing the periphery of the cutter body 100. By adding a second peripheral cutting edge 2112 with a side cutting function to a portion of the bottom insert 211, the milling cutter can achieve smoother cutting connection and a more comprehensive machining range during face milling and side milling, while reducing tool switching or secondary machining. When this portion of the bottom insert 211 rotates, it can cut the workpiece plane through the bottom cutting edge 2111 to complete face milling, and it can also cut the lower part of the workpiece side for auxiliary side milling through the second peripheral cutting edge 2112.

[0060] In each peripheral cutting mechanism 310, adjacent peripheral cutting inserts 311 are circumferentially staggered, while their first peripheral cutting edges 3111 are joined together. This ensures the continuity of side milling while avoiding insert interference, thereby improving cutting stability and machining quality.

[0061] See Figure 1 and Figure 4 In some embodiments, the chip removal assembly 400 includes N main chip removal grooves 410, each configured as a helical groove, with one end located on the bottom end face of the cutter body 100 and the other end extending helically to the periphery of the cutter body 100. Each main chip removal groove 410 provides chip removal for a peripheral cutting mechanism 310 and a bottom insert 211 disposed at the tail end of the peripheral cutting mechanism 310. The helical configuration of the main chip removal grooves 410 improves chip removal efficiency, reduces the friction time between the chips and the inserts, and thus extends the service life of the milling cutter. The helical groove optimizes the chip removal space, is suitable for large-margin cutting applications, and guides the chip flow during machining, preventing chip accumulation on the cutting edge and improving the milling cutter's life. Simultaneously, the helical groove effectively improves the rigidity and strength of the milling cutter and makes reasonable use of the space in the cutter body 100.

[0062] See Figure 1 and Figure 3 In some embodiments, the chip removal assembly 400 includes P secondary chip removal grooves 420, each configured as a straight groove, with one end located on the bottom end face of the tool body 100 and the other end extending in a straight direction to the periphery of the tool body 100. Each secondary chip removal groove 420 provides chip removal for one bottom insert 211. P satisfies: P=MN. The secondary chip removal grooves 420 ensure that chips from all bottom inserts 211 have a dedicated channel for discharge, preventing chip congestion. The bottom inserts 211 are responsible for face milling, and the generated chips are mainly concentrated at the bottom of the tool body 100. The chip flow direction is relatively direct, and the straight groove allows the chips to be discharged quickly in a straight line, eliminating the need for the guiding and pushing function of the spiral groove, resulting in a simpler structure. The straight groove structure is simple, maximizing the preservation of tool body material while meeting chip removal space requirements, without affecting overall rigidity. The machining difficulty of the straight groove is much lower than that of the spiral groove, reducing machining steps and tool manufacturing costs during mass production. Furthermore, the maintenance of the straight groove, such as cleaning chip residue, is more convenient.

[0063] Specifically, in some embodiments, the bottom cutting edge assembly 200 includes six bottom cutting edge mechanisms 210 arranged circumferentially around the cutter body 100. The peripheral cutting edge assembly 300 is disposed around the periphery of the cutter body 100 and includes three peripheral cutting edge mechanisms 310 arranged circumferentially around the cutter body 100; each peripheral cutting edge mechanism 310 includes five peripheral cutting edge inserts 311. The chip removal assembly 400 includes three secondary chip removal grooves 420. Wherein, M is six, N is three, and P is three. When milling with a milling cutter, when face milling is performed by the bottom cutting edge assembly 200, a total of six bottom cutting edge inserts 211 participate in cutting in one revolution of the milling cutter; when side milling is performed by the peripheral cutting edge assembly 300, three peripheral cutting edge inserts 311 participate in cutting in one revolution of the milling cutter. With the feed per tooth remaining constant, doubling the number of bottom cutting edge mechanisms 210 can reduce the machining time by half, reduce cutting costs, and multiply machining efficiency.

[0064] See Figure 4and Figure 5 In some embodiments, the high-efficiency milling cutter with face milling and side milling functions also includes a cooling assembly 500. The cooling assembly 500 includes a main cooling channel 510 and several sub-cooling channels 520. The main cooling channel 510 is disposed in the cutter body 100. One end of each sub-cooling channel 520 is connected to the main cooling channel 510, and the other end is connected to the chip removal groove. Each bottom insert 211 is provided with a corresponding sub-cooling channel 520, and the outlet of the sub-cooling channel 520 is provided with a first preset distance from the corresponding bottom insert 211. Each peripheral insert 311 is provided with a corresponding sub-cooling channel 520, and the outlet of the sub-cooling channel 520 is provided with a second preset distance from the corresponding peripheral insert 311. The main cooling channel 510, as the core carrier for coolant delivery, runs through the interior of the cutter body 100, providing a stable fluid supply for the entire cooling system. The precise docking of the several sub-cooling channels 520 with the main cooling channel 510 achieves uniform distribution of coolant, ensuring that the cooling medium can be efficiently transferred to the vicinity of each insert. The design of connecting the cooling channel 520 with the chip removal channel allows the coolant to act directly on the chip removal path, providing auxiliary power for the chip removal process while completing the cooling function, thus forming a synergistic effect between cooling and chip removal.

[0065] In some embodiments, both the bottom insert 211 and the peripheral insert 311 are configured as PDC (Polycrystalline Diamond) inserts and are brazed to the tool body 100. Each bottom insert 211 and peripheral insert 311 is equipped with an independent cooling channel 520. This one-to-one adaptation design ensures that each cutting edge receives sufficient and balanced cooling supply, effectively avoiding the problem of uneven cooling caused by multiple inserts sharing a cooling channel. This significantly reduces the risk of insert wear, chipping, and other failures caused by local overheating during cutting. Especially for PDC inserts, a stable temperature environment helps maintain their material properties and cutting accuracy. The first and second preset distances set between the outlet of the cooling channel 520 and the corresponding insert are optimized based on cutting dynamics and fluid dynamics. This avoids direct interference between the cooling outlet and the insert, and ensures that the coolant can form a precise coverage area, achieving efficient cooling of the cutting area while reducing ineffective coolant loss.

[0066] It is understandable that the bottom blade 211 and the peripheral blade 311 can be made of PCD material, or other materials such as alloy or ceramic.

[0067] See Figure 5In some embodiments, the high-efficiency milling cutter with face milling and side milling functions also includes a tool holder 600, on which the cutter body 100 is disposed; wherein, the tool holder 600 includes a straight shank, a tapered tool holder 600, a Morse taper shank, and a CAPTO shank. By adding a tool holder 600, the milling cutter achieves precise adaptation and stable connection with the machining equipment, providing a reliable mounting foundation and force transmission path for milling operations.

[0068] Specifically, the straight shank toolholder 600, with its simple structure and cylindrical design, allows for quick clamping and is suitable for small to medium-sized milling cutters and machining scenarios with moderate clamping accuracy requirements. It features convenient installation and strong versatility. The tapered toolholder 600, through its tapered structure, forms a tight fit with the inner tapered surface of the machine tool spindle. Utilizing the self-locking property of the tapered surface, it improves clamping rigidity and positioning accuracy, effectively transmitting cutting torque and adapting to medium-heavy cutting and high-precision machining needs. The Morse taper shank, as a standardized tapered connection form, has uniform taper specifications and interchangeability, and is widely used in traditional machine tools and general machining equipment. Its dual positioning characteristics of the tapered surface and end face ensure the reliability of the connection and repeatability of positioning accuracy. The CAPTO shank, also known as the high-precision modular toolholder 600 system, is a typical representative of the modular toolholder 600 system. It adopts a polygonal cross-section design, combining rigidity and flexibility, enabling quick tool changes and uniform transmission of forces in multiple directions. It is suitable for high-speed cutting, composite machining, and other high-end machining scenarios, significantly improving machining efficiency and process stability. The availability of multiple 600-type tool holder configurations allows milling cutters to flexibly select the appropriate solution based on the actual working conditions such as the spindle type of the machining equipment, machining accuracy requirements, and cutting load, thus expanding the application range of milling cutters while ensuring the stability of force transmission and the controllability of machining accuracy during the milling process.

[0069] 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.

[0070] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A high-efficiency milling cutter with face milling and side milling functions, characterized in that, include: Knife body; A bottom cutting edge assembly is disposed at the bottom of the blade body and includes M bottom cutting edge mechanisms arranged at circumferential intervals along the blade body; A peripheral cutting edge assembly is disposed around the periphery of the blade body, comprising N peripheral cutting edge mechanisms arranged at intervals along the circumference of the blade body; wherein M and N are different. A chip removal assembly is disposed on the blade body and includes a plurality of chip removal grooves, wherein the chip removal grooves are connected to at least one bottom cutting edge mechanism or at least one peripheral cutting edge mechanism.

2. The high-efficiency milling cutter with face milling and side milling functions according to claim 1, characterized in that, M is greater than N.

3. The high-efficiency milling cutter with face milling and side milling functions according to claim 2, characterized in that, The bottom cutting mechanism includes a bottom blade, and M bottom blades of the bottom cutting mechanism are arranged at circumferential intervals along the blade body.

4. The high-efficiency milling cutter with face milling and side milling functions according to claim 3, characterized in that, The M bottom blades are non-uniformly distributed circumferentially on the bottom of the blade body.

5. The high-efficiency milling cutter with face milling and side milling functions according to claim 3, characterized in that, The peripheral cutting mechanism includes multiple peripheral blades, and the multiple peripheral blades in each peripheral cutting mechanism are arranged in a spiral direction around the periphery of the blade body.

6. The high-efficiency milling cutter with face milling and side milling functions according to claim 5, characterized in that, The bottom blade is provided with a bottom cutting edge facing the bottom of the blade body; The peripheral blade is provided with a first peripheral cutting edge facing the periphery of the blade body; A portion of the bottom blade is arranged in the helical direction at the tail end of the peripheral cutting mechanism, and this portion of the bottom blade is provided with a second peripheral cutting edge facing the periphery of the blade body.

7. The high-efficiency milling cutter with face milling and side milling functions according to claim 6, characterized in that, The chip removal assembly includes: N main chip removal grooves, wherein the main chip removal grooves are configured as spiral grooves, one end of which is located on the bottom end face of the blade body, and the other end extends along the spiral direction to the periphery of the blade body; Each of the main chip removal grooves provides chip removal for one of the peripheral cutting mechanisms and the bottom blade disposed at the tail end of the peripheral cutting mechanism.

8. The high-efficiency milling cutter with face milling and side milling functions according to claim 7, characterized in that, The chip removal assembly includes: P secondary chip removal grooves are configured as straight grooves, with one end located on the bottom end face of the blade body and the other end extending in a straight line to the periphery of the blade body. Each of the secondary chip removal slots is used for chip removal from one of the bottom blades; The P satisfies: P=MN.

9. The high-efficiency milling cutter with face milling and side milling functions according to claim 5, characterized in that, The high-efficiency milling cutter with face milling and side milling functions also includes: The cooling assembly includes a main cooling channel and several sub-cooling channels. The main cooling channel is disposed on the tool body, and one end of each sub-cooling channel is connected to the main cooling channel, while the other end is connected to the chip removal groove. Each of the bottom blades is provided with a corresponding cooling channel, and the outlet of the cooling channel is provided with a first preset distance from the corresponding bottom blade. Each peripheral blade is provided with a corresponding cooling channel, and the outlet of the cooling channel is provided with a second preset distance from the corresponding peripheral blade.

10. The high-efficiency milling cutter with face milling and side milling functions according to claim 1, characterized in that, The high-efficiency milling cutter with face milling and side milling functions also includes: A handle, wherein the knife body is disposed on the handle; The tool holder includes a straight shank, a taper shank, a Morse taper shank, and a Capto shank.

Images