Tungsten steel forming contour end mill for machining titanium alloy appearance surface of middle frame

Abstract

The invention relates to a tungsten steel forming contour end mill for machining a titanium alloy appearance surface of a middle frame, and belongs to the technical field of end mills. The tungsten steel forming contour end milling cutter for machining the titanium alloy appearance surface of the middle frame comprises a cutter body and a cutter head, and the cutter body is fixedly connected with the cutter head; the liquid supply buffer mechanism comprises a connecting guide block, a liquid supply assembly and a connecting guide assembly; when the cutter body is used, cooling liquid is directionally conveyed through the offset main channel and distributed in the flow guide ring to act on the cutting side corresponding to the cutter head in a concentrated mode, a controllable cooling and washing area is formed in front of the cutter head, the liquid supply main side keeps the fixed orientation after being clamped through the connection guide assembly, and therefore it is guaranteed that cooling and chip removal act on an expected cutting area all the time; through the matching of directional liquid supply and directional locking, a low-heat and low-adhesion stable cutting environment is constructed for the tool bit under the working condition of finish machining of an appearance surface, and the problems that a titanium alloy work hardening layer is instable in cut-in and the tool is abraded due to adhesion are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of end mill technology, and in particular to a tungsten carbide profile end mill for machining the outer surface of a titanium alloy frame. Background Technology

[0002] In the 3C electronics manufacturing industry, the mobile phone mid-frame is a crucial structural and aesthetic component of the entire device. Its appearance typically requires continuous contours and high surface consistency, and the quality of the surface processing directly impacts the product's assembly effect and market perception. With the increasing demands for lightweighting and strength in high-end models, titanium alloys, due to their high specific strength and excellent corrosion resistance, are increasingly being used in mobile phone mid-frame manufacturing. During the machining of titanium alloy mid-frames, the surface contour is usually milled using a profile end mill. The profile formed by the tool's peripheral edge is then used on CNC equipment to complete the finishing or semi-finishing of the mid-frame's appearance contour, achieving both dimensional shaping and surface quality control.

[0003] In the machining of the outer surface of titanium alloy frame, under the conditions of small cutting width and light load required for the finishing of the outer surface, the cutting edge of the tool mainly relies on process adjustment to achieve cutting of the work-hardened layer formed during the machining process. The stability and consistency of its cutting state are difficult to guarantee, and the cutting behavior is prone to fluctuation between effective cutting and extrusion friction, which leads to problems such as abnormal wear of the cutting edge and unstable machining quality of the outer surface. Summary of the Invention

[0004] Based on this, it is necessary to provide a tungsten carbide profile end mill for machining the outer surface of titanium alloy frames under the conditions of small cutting width and light load. In this case, the cutting of the work-hardened layer by the tool mainly depends on process adjustment, and the stability of the cutting state is difficult to guarantee. The cutting state is prone to fluctuation between effective cutting and extrusion friction, which leads to increased edge wear and affects the machining quality of the outer surface.

[0005] A tungsten carbide profile end mill for machining the outer surface of a titanium alloy frame includes a cutter body and a cutter head, wherein the cutter body and the cutter head are fixedly connected.

[0006] A liquid supply buffer mechanism includes a connecting guide block, a liquid supply component, and a connecting guide component. The cutter body and the cutter head are fixedly connected by the connecting guide block. The liquid supply component is disposed inside the cutter body, and the connecting guide component is disposed outside the cutter body.

[0007] The liquid supply assembly includes a guide ring, an offset main channel, and a liquid outlet groove. The guide ring is fixedly installed on the outside of the cutter body, the offset main channel is opened inside the cutter body, and the guide ring and the offset main channel are interconnected through the liquid outlet groove.

[0008] In one embodiment, the liquid supply assembly further includes a plurality of nozzles fixedly installed on the outside of the flow guide ring. The plurality of nozzles are distributed in a crescent shape on the surface of the flow guide ring, and the other side of the plurality of nozzles is close to the connecting guide block.

[0009] In one embodiment, a flow-blocking block is fixedly installed inside the flow guide ring, and a distribution cavity is opened inside the flow guide ring, with multiple nozzles located on one side of the distribution cavity.

[0010] In one embodiment, a weight-reducing section, a buffer section, and a rigid section are fixedly installed inside the blade body. The diameters of the weight-reducing section, the buffer section, and the rigid section gradually decrease. The buffer section is connected to the offset main path.

[0011] In one embodiment, a throttling connection hole is fixedly installed on one side of the buffer section, and the other end of the throttling connection hole is connected to the offset main channel.

[0012] In one embodiment, the connecting guide block is configured as a frustum shape, and a guide groove is formed on the surface of the connecting guide block, the guide groove being configured as a spiral shape.

[0013] In one embodiment, a resistance inner wall is fixedly installed inside the buffer section, and the resistance inner wall is arranged in a honeycomb pattern.

[0014] In one embodiment, a plurality of first reinforcing ribs are fixedly installed inside the biased main channel. The first reinforcing ribs are configured as rings, and a plurality of second reinforcing ribs are fixedly installed between the plurality of first reinforcing ribs. The plurality of second reinforcing ribs are all configured as strips.

[0015] In one embodiment, the connection guide assembly includes a positioning sleeve fixedly installed on the outside of the blade body, the surface of the positioning sleeve having two mating grooves, and a mating seat fixedly installed on the other side of the blade body.

[0016] In one embodiment, the surface of the connecting guide block is provided with a plurality of guide grooves, one side of each of the plurality of guide grooves is aligned with a plurality of nozzles, and the other side of the plurality of guide grooves is connected to a guide groove.

[0017] Beneficial effects

[0018] The aforementioned tungsten carbide profile end mill with titanium alloy inner frame has a coolant supply system. During use, the coolant is directionally delivered through an offset main channel and distributed within a guide ring, concentrating on the cutting side corresponding to the cutter head. This creates a controllable cooling and flushing zone in front of the cutter head. The connecting guide assembly ensures that the main supply side remains in a fixed orientation after clamping, thereby guaranteeing that cooling and chip removal always act on the intended cutting area. Through the combination of directional coolant supply and direction locking, a stable cutting environment with low heat and low adhesion is created for the cutter head during surface finishing, effectively solving the problems of unstable cutting into the work-hardened layer of titanium alloy and sticky wear.

[0019] The positioning sleeve forms a unique circumferential fit with the docking seat through two mating grooves on its surface. This allows the tool body to be docked and positioned at a predetermined angle when it is clamped to the machine tool spindle or matching clamping structure, thereby achieving reliable locking of the tool body in the circumferential direction. Through the mutual cooperation between the mating grooves and the docking seat, the tool body can be prevented from rotating freely or misaligning during the clamping process, ensuring that the main liquid supply side corresponding to the offset main channel, nozzle and guide ring always maintains a consistent orientation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the liquid supply buffer mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the blade body of the present invention;

[0024] Figure 4 This is a schematic diagram of the bias main channel and guide ring structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the connecting guide block structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the guide ring of the present invention;

[0027] Figure 7 This is a schematic diagram of the damping section, buffer section, and rigid section structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the first and second reinforcing ribs of the present invention;

[0029] Figure 9 This is a schematic diagram of the guide groove and flow channel structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the positioning sleeve and symmetrical groove structure of the present invention.

[0031] Figure label:

[0032] 100. Blade body; 200. Blade tip; 300. Liquid supply buffer mechanism; 310. Connecting guide block; 320. Liquid supply assembly; 321. Guide ring; 322. Offset main channel; 323. Liquid outlet groove; 324. Nozzle; 325. Guide groove; 326. Flow blocking block; 327. Distribution chamber; 328. Weight reduction section; 329. Buffer section; 3210. Rigid section; 3211. Throttling connecting hole; 3212. Resistance inner wall; 3213. First reinforcing rib; 3214. Second reinforcing rib; 330. Connecting guide assembly; 331. Positioning sleeve; 332. Docking groove; 333. Docking seat; 334. Guide groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0035] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification 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 in this specification includes any and all combinations of one or more of the associated listed items.

[0038] The following is combined with Figures 1-10 This invention describes a tungsten carbide profile end mill for machining the titanium alloy outer surface of a mid-frame.

[0039] In one embodiment, a tungsten carbide profile end mill for machining the outer surface of a titanium alloy frame includes a cutter body 100 and a cutter head 200, with the cutter body 100 and the cutter head 200 fixedly connected. A liquid supply buffer mechanism 300 includes a connecting guide block 310, a liquid supply assembly 320, and a connecting guide assembly 330. The cutter body 100 and the cutter head 200 are fixedly connected via the connecting guide block 310. The liquid supply assembly 320 is disposed inside the cutter body 100, and the connecting guide assembly 330 is disposed outside the cutter body 100. The liquid supply assembly 320 includes a guide ring 321, an offset main channel 322, and a liquid outlet groove 323. The guide ring 321 is fixedly installed on the outside of the cutter body 100, the offset main channel 322 is formed inside the cutter body 100, and the guide ring 321 and the offset main channel 322 are interconnected via the liquid outlet groove 323.

[0040] In this embodiment, the coolant is input through the machine tool cooling components and enters the biased main channel 322. Since the biased main channel 322 is offset relative to the centerline of the tool body 100, the coolant forms a directional flow path inside the tool body 100 and concentrates towards the main supply side during the flow. The coolant flows along the biased main channel 322 to the outlet tank 323 and then enters the guide ring 321. The guide ring 321 performs circumferential distribution and buffering of the fluid, causing the coolant to form a directional distribution within the guide ring 321 before being guided and released. This allows the coolant to preferentially act on the corresponding part of the tool head 200. In the cutting zone, a concentrated and controllable cooling and flushing area is formed in front of the tool head 200, effectively reducing edge wear and built-up edge formation caused by cutting heat and material adhesion during titanium alloy machining. The connecting guide assembly 330 is located at the clamping end of the tool body 100, including a directional reference structure on the outside of the tool holder and a matching positioning sleeve 331. This ensures that the tool body 100 can only be positioned and assembled in a predetermined direction when clamped to the machine tool spindle, thus ensuring that the main supply side corresponding to the offset main channel 322, the coolant outlet groove 323, and the guide ring 321 always maintains a consistent orientation in the machine tool coordinate system. This ensures that the coolant and flushing flow stably act on the expected cutting and chip removal sides, avoiding problems such as cooling failure or chip interference with the appearance due to tool clamping direction deviation.

[0041] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the liquid supply assembly 320 also includes a plurality of nozzles 324 fixedly installed on the outside of the guide ring 321. The plurality of nozzles 324 are distributed in a crescent shape on the surface of the guide ring 321, and the other side of the plurality of nozzles 324 is close to the connecting guide block 310.

[0042] In this embodiment, multiple nozzles 324 are distributed in a crescent shape on the surface of the guide ring 321 and are concentrated on one side near the connecting guide block 310, so that the spray direction corresponds to the main cutting side of the cutter head 200. When the coolant enters the guide ring 321 through the bias main channel 322 and the outlet channel 323, it is sprayed in front of the cutter head 200 by multiple nozzles 324 in an array, so that the coolant forms a spray flow band with controllable coverage and concentrated direction in the cutting area, thereby continuously cooling and scouring the contact area between the cutter head 200 and the outer surface of the titanium alloy frame. By concentrating the nozzles 324 on one side near the connecting guide block 310, the coolant can preferentially act on the area between the cutter head 200 and the outer surface of the workpiece where the heat and adhesion are most concentrated, so that the work-hardened layer and fine chips formed during the processing can be peeled off and carried away from the cutting area in time, reducing the retention and secondary scraping of chips in the outer surface area.

[0043] A flow-blocking block 326 is fixedly installed inside the flow guide ring 321, and a distribution cavity 327 is opened inside the flow guide ring 321. Multiple nozzles 324 are located on one side of the distribution cavity 327.

[0044] In this embodiment, the flow-blocking block 326 is fixedly installed inside the guide ring 321, forming a distribution cavity 327 with the inside of the guide ring 321. This allows the coolant entering the guide ring 321 through the outlet groove 323 to undergo a flow-blocking and converging process before entering the nozzle 324, thereby reducing the direct flow effect and initially balancing the flow rate. Multiple nozzles 324 are located on one side of the distribution cavity 327, allowing the coolant in the distribution cavity 327 to be concentrated and guided for spraying under stable pressure, effectively avoiding uneven spraying or amplified pulsation caused by direct supply from a single channel.

[0045] It should be noted that the multiple nozzles 324 are not of equal diameter, but are configured with different diameters according to their spatial relationship with the cutting area of ​​the tool head 200. The nozzles 324 closer to the tool tip are configured with smaller orifices, which can form a high-pressure, high-velocity coolant jet during spraying to enhance cooling and flushing of the tool tip and areas with concentrated work-hardened layers. The nozzles 324 closer to the tool body 100 are configured with larger orifices to provide a larger flow rate of coolant to form a continuous cooling and chip removal flow band around the cutting area. By setting the orifice diameters of the multiple nozzles 324 in a graded manner, the coolant forms a spray combination with different pressure and flow rates from the inside to the outside during the spraying process, avoiding the defect that a single orifice spray cannot simultaneously meet the requirements of cutting enhancement and chip removal stability.

[0046] The blade body 100 has a weight reduction section 328, a buffer section 329 and a rigid section 3210 fixedly installed inside. The diameters of the weight reduction section 328, the buffer section 329 and the rigid section 3210 gradually decrease. The buffer section 329 is connected to the offset main path 322.

[0047] In this embodiment, the weight-reducing section 328, the buffer section 329, and the rigid section 3210 are arranged sequentially along the axial direction of the tool body 100, with their diameters decreasing progressively. This creates a mechanical transition structure from flexible to rigid in the tool body 100. The weight-reducing section 328 reduces the overall moment of inertia and decreases the unbalanced load during high-speed rotation. The rigid section 3210 is located close to the tool tip 200 to provide a stable and reliable support foundation for the cutting edge. The buffer section 329 is positioned between the weight-reducing section 328 and the rigid section 3210 and is connected to the offset main channel 322. This allows the coolant to form a volumetrically elastic fluid buffer chamber within the buffer section 329, absorbing and attenuating pressure fluctuations during the coolant supply process and instantaneous impacts caused by cutting loads. This prevents the superposition of fluid pulsation and cutting vibration from being transmitted to the tool tip 200, thereby improving the stability of the tool operation and the durability of the cutting edge during the finishing of the titanium alloy frame's outer surface.

[0048] A throttling connection hole 3211 is fixedly installed on one side of the buffer section 329, and the other end of the throttling connection hole 3211 is connected to the offset main channel 322.

[0049] In this embodiment, the throttling orifice 3211 ensures that the coolant flows into the buffer section 329 through a controlled throttling channel when entering from the biased main channel 322, thereby forming a fluid buffer zone with limited flow and stable pressure within the buffer section 329. By limiting the fluid flow through the throttling orifice 3211, instantaneous flow shocks and pressure pulsations generated during the fluid supply process can be effectively suppressed, making the fluid buffering effect within the buffer section 329 more significant. This prevents coolant pulsations from directly affecting the rigid section 3210 and the cutting head 200, reducing the superimposed effects of fluid shock and cutting vibration, and further improving the cutting stability and surface finish of the tool under finishing conditions on the titanium alloy outer surface.

[0050] The connecting guide block 310 is shaped like a frustum, and a guide groove 325 is provided on the surface of the connecting guide block 310. The guide groove 325 is shaped like a spiral.

[0051] In this embodiment, the frustum-shaped structure of the connecting guide block 310 forms a gradually converging outline in the transition area connected to the cutting head 200. This facilitates the smooth flow of coolant and chips during the high-speed rotation of the cutting body 100. The guide groove 325 is spirally formed on the surface of the connecting guide block 310, allowing the coolant sprayed by the guide ring 321 and nozzle 324 to flow along the spiral path towards the cutting head 200 after contacting the outer surface of the connecting guide block 310. This forms a continuous liquid film and scouring flow around the cutting head 200. Through the secondary guiding effect of the spiral guide groove 325 on the coolant, the coolant can maintain a wall-adhering flow state during the delivery to the cutting area, reducing liquid scattering caused by centrifugal force and improving the stability of the coolant coverage of the cutting head 200 and the cutting area.

[0052] The buffer section 329 has a fixed inner resistance wall 3212 installed inside, and the inner resistance wall 3212 is arranged in a honeycomb pattern.

[0053] In this embodiment, the interior of the buffer section 329 forms a multi-channel fluid damping structure through a honeycomb-shaped inner wall 3212. This disperses the coolant entering the buffer section 329 through the throttling orifice 3211 into multiple fine streams during flow, significantly increasing the flow resistance and residence time of the fluid within the buffer section 329. The honeycomb-shaped inner wall 3212 further enhances the absorption and attenuation of coolant pressure pulsations and instantaneous flow impacts, resulting in a more stable and continuous flow of coolant to the cutter head 200 via the offset main channel 322. This prevents the amplification of fluid fluctuations and cutting vibrations, further improving the stability of the tool operation and the durability of the cutting edge during the finishing of the titanium alloy frame's outer surface.

[0054] Multiple first reinforcing ribs 3213 are fixedly installed inside the offset main lane 322. The first reinforcing ribs 3213 are configured as rings. Multiple second reinforcing ribs 3214 are fixedly installed between the multiple first reinforcing ribs 3213. The multiple second reinforcing ribs 3214 are all configured as strips.

[0055] In this embodiment, the first reinforcing rib 3213 and the multiple strip-shaped second reinforcing ribs 3214 form a skeleton-type reinforcing structure, which enables the offset main channel 322 to have higher structural rigidity and deformation resistance while maintaining the function of the coolant channel. The annular first reinforcing ribs 3213 are distributed at intervals along the axial direction of the offset main channel 322 to provide circumferential support for the channel wall. The multiple second reinforcing ribs 3214 are disposed between adjacent first reinforcing ribs 3213 and extend along the axial direction of the offset main channel 322 to provide longitudinal reinforcement for the channel wall. This makes it less likely for the offset main channel 322 to undergo local deformation or resonance when subjected to internal fluid pressure and external cutting load.

[0056] like Figure 2 , Figure 9 and Figure 10 As shown, the connecting guide assembly 330 includes a positioning sleeve 331 fixedly installed on the outside of the blade body 100. Two mating grooves 332 are formed on the surface of the positioning sleeve 331, and a mating seat 333 is fixedly installed on the other side of the blade body 100.

[0057] In this embodiment, the positioning sleeve 331 forms a unique circumferential fit with the docking seat 333 through two docking grooves 332 on its surface. This ensures that when the tool body 100 is clamped to the machine tool spindle or the matching clamping structure, it can only complete the docking and positioning at a predetermined angle. This achieves reliable locking of the tool body 100 in the circumferential direction. Through the mutual cooperation between the docking grooves 332 and the docking seat 333, the tool body 100 can be prevented from rotating freely or misaligning during the clamping process. This ensures that the main liquid supply side corresponding to the offset main channel 322, nozzle 324 and guide ring 321 always maintains a consistent orientation, avoiding problems such as cooling failure, chip accumulation or surface scratches caused by tool direction installation errors.

[0058] Multiple guide grooves 334 are provided on the surface of the connecting guide block 310. One side of each guide groove 334 is aligned with a multiple nozzle 324, and the other side of each guide groove 334 is connected to the guide groove 325.

[0059] In this embodiment, through the continuous guiding structure of the guide groove 334 and the guide groove 325, a controlled flow path can be formed for the coolant sprayed from the nozzle 324 when the cutter body 100 is rotating at high speed, so that the coolant can stably enter the cutting area near the cutter head 200 in a wall-following manner, thereby improving the continuity of coolant coverage and scouring efficiency of the cutting area, and further enhancing the ability to remove work-hardened layers and fine chips.

[0060] Working principle: First, the tool body 100 is clamped to the machine tool spindle in a predetermined direction via the connecting guide assembly 330, ensuring that the main supply side of the offset main channel 322, nozzles 324, and guide structure are aligned with the predetermined cutting and chip removal sides. After the machine tool cooling system is started, the coolant is input through the machine tool cooling components and enters the offset main channel 322 inside the tool body 100. Since the offset main channel 322 is offset relative to the centerline of the tool body 100, the coolant forms a directional main path inside the tool body 100 and is concentratedly delivered to the main supply side. The coolant flows along the offset main channel 322 to the outlet tank 323 and then enters the guide ring 321. In the guide ring 321, it is collected and buffered in the distribution cavity 327 formed by the flow blocking block 326, which weakens the fluid pulsation and forms a stable pressure state. Subsequently, the coolant is sprayed from multiple nozzles 324 in an array onto the side of the connecting guide block 310, with the nozzles near the tool tip being sprayed in an array. Nozzle 324 forms a high-pressure jet to break the work-hardened layer. Nozzle 324 near the tool body 100 forms a high-flow jet to create a chip removal flow band, thereby forming a graded cooling and flushing area in front of the tool head 200. The sprayed coolant is guided into the spiral guide groove 325 through the guide groove 334 on the surface of the connecting guide block 310, and flows along the spiral path to the area around the tool head 200, forming a continuous liquid film and flushing flow band in the cutting zone, which quickly removes the fine chips and hardened layer debris generated during cutting from the surface area. At the same time, some coolant enters the buffer section 329 through the throttling connecting hole 3211 and forms fluid damping in the honeycomb resistance inner wall 3212, thereby absorbing the liquid supply pulsation and cutting vibration, making the load entering the rigid section 3210 and the tool head 200 more stable. Thus, a stable, low-heat, and low-adhesion cutting environment is created in front of the tool head 200, achieving high-quality finishing of the titanium alloy frame surface.

[0061] 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.

[0062] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A tungsten carbide profile end mill for machining the outer surface of a titanium alloy frame, comprising a cutter body (100) and a cutter head (200), characterized in that, The blade body (100) is fixedly connected to the blade head (200); A liquid supply buffer mechanism (300) includes a connecting guide block (310), a liquid supply assembly (320), and a connecting guide assembly (330). The blade body (100) and the blade head (200) are fixedly connected by the connecting guide block (310). The liquid supply assembly (320) is disposed inside the blade body (100), and the connecting guide assembly (330) is disposed outside the blade body (100). The liquid supply assembly (320) includes a flow guide ring (321), an offset main channel (322), and a liquid outlet groove (323). The flow guide ring (321) is fixedly installed on the outside of the blade body (100), and the offset main channel (322) is opened inside the blade body (100). The flow guide ring (321) and the offset main channel (322) are interconnected through the liquid outlet groove (323).

2. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 1, characterized in that, The liquid supply assembly (320) also includes a plurality of nozzles (324) fixedly installed on the outside of the guide ring (321). The plurality of nozzles (324) are distributed in a crescent shape on the surface of the guide ring (321), and the other side of the plurality of nozzles (324) is close to the connecting guide block (310).

3. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 2, characterized in that, A flow-blocking block (326) is fixedly installed inside the flow guide ring (321), and a distribution cavity (327) is opened inside the flow guide ring (321). The multiple nozzles (324) are all located on one side of the distribution cavity (327).

4. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 1, characterized in that, The blade body (100) is internally fixedly equipped with a weight-reducing section (328), a buffer section (329) and a rigid section (3210), the diameters of the weight-reducing section (328), the buffer section (329) and the rigid section (3210) gradually decrease, and the buffer section (329) is connected to the offset main channel (322).

5. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 4, characterized in that, A throttling connection hole (3211) is fixedly installed on one side of the buffer section (329), and the other end of the throttling connection hole (3211) is connected to the offset main channel (322).

6. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 1, characterized in that, The connecting guide block (310) is configured as a frustum shape, and a guide groove (325) is provided on the surface of the connecting guide block (310), which is configured as a spiral shape.

7. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 5, characterized in that, The buffer section (329) is fixedly installed with a resistance inner wall (3212), which is arranged in a honeycomb pattern.

8. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 1, characterized in that, The offset main channel (322) is internally fixedly equipped with a plurality of first reinforcing ribs (3213), the first reinforcing ribs (3213) are configured as rings, and a plurality of second reinforcing ribs (3214) are fixedly installed between the plurality of first reinforcing ribs (3213), the plurality of second reinforcing ribs (3214) are all configured as strips.

9. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 1, characterized in that, The connecting guide assembly (330) includes a positioning sleeve (331) fixedly installed on the outside of the blade body (100). Two docking grooves (332) are opened on the surface of the positioning sleeve (331), and a docking seat (333) is fixedly installed on the other side of the blade body (100).

10. The tungsten carbide profile end mill for machining the titanium alloy outer surface of the middle frame according to claim 3, characterized in that, The surface of the connecting guide block (310) is provided with a plurality of guide grooves (334), one side of each of the plurality of guide grooves (334) is aligned with a plurality of nozzles (324), and the other side of the plurality of guide grooves (334) is connected to the guide groove (325).

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