Left-right rotation crossed cutting edge milling cutter for inhibiting burrs

Abstract

The invention provides a left-right rotation crossed cutting edge milling cutter for inhibiting burrs, and relates to the technical field of milling cutters, the left-right rotation crossed cutting edge milling cutter comprises a cutter handle main body, a cutting edge and an end cover, the cutting edge comprises a right rotation edge and a left rotation edge, the tool front angle of the cutting edge is 5-10 degrees, the tool rear angle of the cutting edge is 10-12 degrees, and the tool cutting edge angle of the cutting edge is less than 60 degrees, the unique crossed edge design plays a key role, the right-handed rotation edge and the left-handed rotation edge are matched with each other, a material cutting layer is effectively controlled from the upper direction and the lower direction when a composite material is cut, and when the cutting edges cut into the material, the upper layer is stably compacted by the right-handed rotation edge, and the lower layer is precisely lifted by the left-handed rotation edge, the material cutting layer is effectively controlled. And the special design of the first chip removal groove and the second chip removal groove is the core element for improving the cutting stability, cuttings are prevented from being wound and blocked in the grooves, the radial load of the cutter is reduced, and the occurrence probability of cutter vibration is reduced fundamentally.

Description

Technical Field

[0001] The invention belongs to the technical field of milling cutters, and more specifically, particularly relates to a left-right rotating cross-edge milling cutter for suppressing burrs. Background Art

[0002] Left-right rotating cross-edge milling cutters used to suppress burrs are mainly used for high-precision, high-quality cutting of various composite materials. They are widely used in cutting-edge industrial fields such as aerospace, automobile manufacturing, and electronic equipment. They aim to ensure the smoothness and dimensional accuracy of the processed surface, help improve the overall performance and quality of the product, and meet the needs of precision processing of complex parts.

[0003] In practical applications, a left-right cross-edge milling cutter for suppressing burrs usually requires the following technologies:

[0004] 1. Cutting edge material: Select ultra-hard and tough tool materials, such as ultra-fine grain cemented carbide, polycrystalline cubic boron nitride (PCBN), etc., which are made by advanced processes such as powder metallurgy, high temperature and high pressure sintering.

[0005] 2. Geometric design: The right-handed and left-handed blades are precisely designed based on the properties of composite materials and the principles of cutting mechanics.

[0006] 3. Tool handle connection: The tool handle is made of high-strength alloy steel or heat-shrinkable, hydraulic special tool handle, and is connected to the tool body through multiple connection methods such as high-precision taper matching and threaded fastening.

[0007] At present, in the field of composite material cutting and processing, the shortcomings of traditional milling cutters are prominent. Most milling cutters have a single blade type. Faced with the anisotropy of composite materials and the difference in interlayer bonding, the upper and lower layers of materials are unevenly stressed during cutting, and burrs and tears often appear at the end of the cutting. The subsequent grinding and cleaning process is complicated and the workpiece is easily damaged. The conventional chip removal groove is simply designed, and the chips are easily congested and tangled in the groove, causing the radial force of the tool to be unbalanced, causing severe vibration of the tool, which not only damages the tool, but also causes the roughness of the processed surface to soar and the dimensional accuracy to be out of control, making it difficult to meet the stringent requirements of high-end manufacturing for precision processing.

[0008] However, the above method has a structural problem, that is, the burr suppression ability and cutting stability of the milling cutter in actual use are poor. Especially with the booming development of emerging industries and the widespread use of composite materials, the requirements for high precision and low defects of machining tools are "rising", and existing ordinary milling cutters are difficult to match the high-quality and high-efficiency cutting needs. In response to this problem, this application proposes a solution and designs a left-right rotating cross-edge milling cutter. With the synergy of cross-edges and special chip grooves, the problems of burrs and tool vibration are overcome from the cutting mechanism level, the cutting stability is improved, the tool support is strengthened for the precision machining of composite materials, and the process upgrade of advanced manufacturing is promoted. Summary of the invention

[0009] In order to solve the above technical problems, the present invention provides a left-right rotating cross-edge milling cutter for suppressing burrs, so as to solve the above problems.

[0010] A left-right rotating cross-edge milling cutter for suppressing burrs comprises a tool holder body, a cutting edge and an end cover, the cutting edge comprises a right-handed cutting edge and a left-handed cutting edge, the tool rake angle of the cutting edge is 5°-10°, the tool back angle of the cutting edge is 10°-12°, the tool main deflection angle of the cutting edge is less than 60°, the tool holder body is fixedly connected to the end cover, the cutting edge is made of high-strength material, the right-handed cutting edge and the left-handed cutting edge intersect, a chip groove 1 is arranged between the right-handed cutting edges, a chip groove 2 is arranged between the left-handed cutting edges, the intersection of the chip groove 1 and the chip groove 2 is connected, the chip groove 1 is a right-handed right-cut 30° spiral, and the chip groove 2 is a left-handed right-cut 45° spiral.

[0011] Preferably, a clamping end surface is symmetrically provided on the side end portion of the handle body, and the clamping end surface is located on one side of the end cover.

[0012] Preferably, the side end of the handle body is provided with a plurality of air inlets, each of which is evenly distributed on the periphery of the handle body, and the handle body is provided with a plurality of air exhaust ports, each of which is connected to the air inlet, and each of which is provided on one side of the chip removal groove.

[0013] Preferably, a liquid inlet hole is provided at the side end of the end cover, guide holes are provided in the handle body and the cutting edge, and a liquid discharge hole is provided at the side end of the left-handed blade. The positions of the liquid inlet hole and the guide hole correspond to each other, and the liquid inlet hole, the guide hole and the liquid discharge hole are connected.

[0014] Preferably, a limit ring is installed on the outer thread of the handle body, and a built-in opening is opened at the side end of the handle body, which is correspondingly distributed on the outer side of the exhaust port. A rotating blade is rotatably installed on the inner side of the built-in opening, and the limit ring is threadedly sleeved on the outer side of the rotating blade.

[0015] Preferably, a built-in hole is provided on the inner side of the handle body, and the built-in hole is located at the center position of the side end surface of the handle body. A damping block is provided in the built-in hole, and the material of the damping block is a high molecular polymer damping material. A limiting plug is fixedly installed on the side end portion of the end cover, and the limiting plug is filled in the damping block accordingly, and the limiting plug limits and fixes the damping block.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, the unique cross-blade design plays a key role. The right-handed blade and the left-handed blade cooperate with each other to effectively control the material cutting layer from the upper and lower directions when cutting composite materials. When the cutting edge cuts into the material, the upper layer is firmly compacted by the right-handed blade, and the lower layer is accurately lifted by the left-handed blade, so as to avoid disorderly tearing and warping of the material at the cutting end to form burrs. At the same time, the tool rake angle of the cutting edge is set at 5°-10°, which not only ensures that the blade is sharp enough to cut in smoothly, but also maintains a certain strength to resist cutting impact and reduce the risk of chipping. The tool back angle of the cutting edge is 10°-12°, which effectively reduces the friction between the tool back face and the machined surface. The special design of the chip groove one and the chip groove two is the core element for improving cutting stability. During the cutting process, the chips can be discharged smoothly in the direction perpendicular to the cutting edge, so as to avoid the chips from being entangled and blocked in the groove, reduce the radial load of the tool, and reduce the probability of tool vibration from the root.

[0018] In the present invention, when a left-right rotating cross-edge milling cutter for suppressing burrs is used, guide holes are designed axially inside the tool holder body and the cutting edge, and the coolant enters from the liquid inlet hole of the end cover, and then is introduced into the guide hole from the liquid inlet hole, passes through the guide holes inside the tool holder body and the cutting edge, and then is discharged from the liquid discharge hole, and flows directly to the cutting edge, so that during the cutting process, the coolant can quickly reach the cutting edge under pressure and take away the cutting heat.

[0019] In the present invention, when a left-right rotating cross-edge milling cutter for suppressing burrs is used, during the rotation of the tool handle body, air enters the air inlet, and then the air is guided from the air inlet to the air outlet, and then the air is discharged from the air outlet to the cutting edge. Since the air inlet is larger than the air outlet, the air in the air inlet will be accelerated during the rotation of the tool handle body, and then the accelerated air will go directly to the outside of the cutting edge from the air outlet, thereby improving the heat dissipation efficiency of the outer wall of the cutting edge.

[0020] In the present invention, when a left-right rotating cross-edge milling cutter for suppressing burrs is used, the limit ring is rotated, and the limit ring is subjected to force to perform threaded rotation on the outside of the tool handle body. The limit ring threadedly rotates to adjust its own position. When the limit ring is separated from the limiting fixation on the rotating blade, the limit ring is stopped from rotating. At this time, the machine tool is started, and the rotating blades will unfold as the tool handle body rotates. The rotation of the rotating blades drives the airflow, and the airflow is transported toward one side of the cutting edge, so that during the cutting process, on the one hand, the cutting edge can be assisted in heat dissipation, and on the other hand, the cutting chips generated in the cutting process can be blown away, effectively preventing chip accumulation.

[0021] In the present invention, when a left-right rotating cross-edge milling cutter is used to suppress burrs, a damping block is filled and installed in the built-in hole inside the tool handle body. The damping block is a high molecular polymer damping material, so that during the cutting process, the damping block can effectively absorb the vibration generated by the cutting edge during the cutting process, thereby reducing the influence of the vibration on the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the knife handle of the present invention;

[0023] Figure 2 It is a schematic diagram of the cutting edge structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the diversion hole analysis of the present invention;

[0025] Figure 4 It is a schematic diagram of the clamping end surface structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the rotating blade of the present invention;

[0027] Figure 6 It is a schematic diagram of the exhaust port structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the air inlet analysis of the present invention;

[0029] Figure 8 It is a schematic diagram of the end cover structure of the present invention;

[0030] Fig. 9 It is a schematic diagram of the limit plug structure of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the damping block of the present invention.

[0032] In the figure, the correspondence between the component names and the figure numbers is: 1. Tool handle body; 11. Cutting edge; 12. End cover; 13. Clamping end face; 14. Air inlet; 15. Air exhaust; 17. Liquid inlet hole; 18. Guide hole; 19. Liquid drain hole; 2. Right-handed blade; 21. Left-handed blade; 22. Chip groove one; 23. Chip groove two; 3. Limiting ring; 31. Built-in port; 32. Rotating blade; 33. Built-in hole; 34. Damping block; 35. Limiting plug. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1 - Figure 2 The present invention provides a left-right rotating cross-edge milling cutter for suppressing burrs, comprising a handle body 1, a cutting edge 11 and an end cap 12, wherein the cutting edge 11 comprises a right-handed cutting edge 2 and a left-handed cutting edge 21, the tool rake angle of the cutting edge 11 is 5° to 10°, the tool clearance angle of the cutting edge 11 is 10° to 12°, and the tool main deflection angle of the cutting edge 11 is less than 60°, wherein the handle body 1 is fixedly connected to the end cap 12, the cutting edge 11 is made of a high-strength material, the right-handed cutting edge 2 The right-handed blade 2 and the left-handed blade 21 intersect each other, and a chip groove 1 22 is arranged between the right-handed blade 2, and a chip groove 2 23 is arranged between the left-handed blade 21. The intersection of the chip groove 1 22 and the chip groove 2 23 is connected, wherein the chip groove 1 22 is a right-handed right-cut limit ring 3° spiral, and the chip groove 2 23 is a left-handed right-cut 45° spiral. The tool handle body 1 is connected to the machine tool, and then the material is cut. The unique cross-edge design plays a key role. The right-handed blade 2 and the left-handed blade 21 match each other. The cutting layer of the material is effectively controlled from both the upper and lower directions when cutting composite materials. When the cutting edge 11 cuts into the material, the upper layer is firmly compacted by the right-handed blade 2, and the lower layer is accurately lifted by the left-handed blade 21, so as to avoid disorderly tearing and warping of the material at the cutting end to form burrs. At the same time, the tool rake angle of the cutting edge 11 is set at 5°-10°, which not only ensures that the blade is sharp enough to cut in smoothly, but also maintains a certain strength to resist cutting impact and reduce the risk of chipping. The tool back angle of the cutting edge 11 is 10°-12°, which effectively reduces the friction between the tool back face and the machined surface. The special design of the chip groove 1 22 and the chip groove 2 23 is the core element for improving cutting stability. The chip groove 1 22 with a right-handed right-cutting limit ring and a 3° helix angle is matched with the chip groove 2 23 with a left-handed right-cutting 45° helix angle. During the cutting process, the chips can be discharged smoothly in a direction perpendicular to the cutting edge, so as to avoid the chips from being entangled and blocked in the groove, reduce the radial load of the tool, and reduce the probability of tool vibration from the root.

[0036] Embodiment 2:

[0037] See also Figure 1-10The present invention provides a left-right rotating cross-edge milling cutter for suppressing burrs, comprising a handle body 1, a cutting edge 11 and an end cover 12, wherein the cutting edge 11 comprises a right-handed blade 2 and a left-handed blade 21, and a clamping end face 13 is symmetrically arranged at the side end of the handle body 1, wherein the clamping end face 13 is located at one side of the end cover 12, and a plurality of air inlets 14 are arranged at the side end of the handle body 1, wherein each air inlet 14 is evenly distributed at an angle on the periphery of the handle body 1, and a plurality of air exhaust ports 15 are arranged in the handle body 1, wherein each air exhaust port 15 is connected to the air inlet port 14, and during the rotation of the handle body 1, air enters the air inlet port 14, and then the air is guided from the air inlet port 14 to the air exhaust port 15, and then the air is discharged from the air exhaust port 15 to On the cutting edge 11, since the air inlet 14 is larger than the air outlet 15, the air in the air inlet 14 will be accelerated during the rotation of the handle body 1, and then the accelerated air will directly reach the outside of the cutting edge 11 from the air outlet 15, thereby improving the heat dissipation efficiency of the outer wall of the cutting edge 11, and each air outlet 15 is arranged on one side of the chip groove 22, and a liquid inlet hole 17 is arranged at the side end of the end cover 12, and a guide hole 18 is arranged in the handle body 1 and the cutting edge 11, and a liquid discharge hole 19 is arranged at the side end of the left-handed blade 21, wherein the positions of the liquid inlet hole 17 and the guide hole 18 correspond, and the liquid inlet hole 17, the guide hole 18 and the liquid discharge hole 19 are connected, and the guide hole 18 is designed axially inside the handle body 1 and the cutting edge 11, and the coolant is discharged from the liquid inlet hole of the end cover 12 17, and then introduced into the guide hole 18 through the liquid inlet hole 17, passed through the guide hole 18 inside the tool handle body 1 and the cutting edge 11, and then discharged from the drain hole 19, and directly flowed to the cutting edge, so that during the cutting process, the coolant can quickly reach the cutting edge under pressure and take away the cutting heat. A limit ring 3 is threadedly installed on the outer side of the tool handle body 1, and a built-in port 31 is opened on the side end of the tool handle body 1, wherein the built-in port 31 is correspondingly distributed on the outer side of the exhaust port 15, and a rotating blade 32 is rotatably installed on the inner side of the built-in port 31, wherein the limit ring 3 is threadedly sleeved on the outer side of the rotating blade 32, and the limit ring 3 is rotated. The limit ring 3 is subjected to force on the outer side of the tool handle body 1 to rotate by thread, and the limit ring 3 rotates by thread to adjust its own position. When the limiting ring 3 is released from the limiting fixation on the rotating blade 32, the limiting ring 3 is stopped, and the machine tool is started at this time. The rotating blade 32 will be unfolded with the rotation of the tool handle body 1, and the rotation of the rotating blade 32 drives the airflow, and the airflow is transported toward the side of the cutting edge 11, so that during the cutting process, on the one hand, the cutting edge 11 can be assisted in heat dissipation, and on the other hand, the cutting chips generated in the cutting process can be blown away, effectively preventing the accumulation of chips. A built-in hole 33 is provided on the inner side of the tool handle body 1, wherein the built-in hole 33 is located at the center position of the side end face of the tool handle body 1, and a damping block 34 is provided in the built-in hole 33, wherein the material of the damping block 34 is a high molecular polymer damping material, and a limiting plug 35 is fixedly installed on the side end of the end cover 12, wherein,The stopper 35 is filled in the damping block 34, and the stopper 35 limits and fixes the damping block 34. The built-in hole 33 inside the handle body 1 is filled with the damping block 34, and the damping block 34 is a polymer damping material, so that during the cutting process, the damping block 34 can effectively absorb the vibration generated by the cutting edge 11 during the cutting process, and reduce the influence of the vibration on the processing accuracy.

[0038] Working principle:

[0039] The first step is to connect the handle body 1 to the machine tool when using the left-handed cross-edge milling cutter for suppressing burrs. Then, the material is cut. The unique cross-edge design plays a key role. The right-handed blade 2 and the left-handed blade 21 cooperate with each other to effectively control the material cutting layer from the upper and lower directions when cutting composite materials. When the cutting edge 11 cuts into the material, the upper layer is firmly compacted by the right-handed blade 2, and the lower layer is accurately lifted by the left-handed blade 21, so as to avoid disorderly tearing and warping of the material at the end of cutting to form burrs. At the same time, the tool rake angle of the cutting edge 11 is set at 5°-10°, which not only ensures that the blade is sufficient It is sharp enough to cut in smoothly, while maintaining a certain strength to resist cutting impact and reduce the risk of chipping. The tool back angle of 10°-12° of the cutting edge 11 effectively reduces the friction between the tool back face and the machined surface. The special design of the chip groove 1 22 and the chip groove 2 23 is the core element to improve cutting stability. The chip groove 1 22 with a right-handed and right-cutting limit ring and a 3° helix angle is matched with the chip groove 2 23 with a left-handed and right-cutting 45° helix angle. During the cutting process, the chips can be discharged smoothly in a direction perpendicular to the cutting edge, avoiding chips entanglement and clogging in the groove, reducing the radial load of the tool, and reducing the probability of tool vibration from the root.

[0040] The second step is to focus on the preparation of the coolant circulation path before starting the cutting operation with a left-right rotating cross-edge milling cutter specially designed to suppress burrs. Inside the tool holder body 1, along the axial center line, a guide hole 18 is carefully and meticulously designed. These guide holes 18 are considered from the engineering design level, and the appropriate aperture size and hole wall roughness standards are determined based on the comprehensive balance of multiple factors such as the specific structural strength requirements of the tool holder and the cutting edge 11 and the coolant flow carrying requirements. Its aperture can ensure the smooth passage of the coolant without excessively weakening the rigid support capacity of the tool holder body 1; the hole wall is finely processed and polished to minimize the friction resistance encountered by the coolant when it flows, and ensure the efficiency of liquid transmission. When the cutting operation starts, the coolant supply system starts to operate, and the coolant first reaches the carefully set inlet hole 17 at the end cover 12. The position of the inlet hole 17 on the end cover 12 is selected and designed based on practical points such as convenient connection to the machine tool coolant output pipeline and ensuring sealing and leakproof performance. It uses highly compatible sealing connection accessories with the external coolant pipeline, such as matching rubber sealing rings, locking nut combinations, etc., to prevent coolant leakage. Once the coolant flows into the inlet hole 17, it is accurately introduced into the guide hole 18 system along the predetermined path. Driven by the stable pressure applied by the machine tool coolant pumping device, the coolant continues to move along the guide hole 18 winding inside the handle body 1 and the cutting edge 11, and finally sprays out from the drain hole 19 and rushes directly to the cutting edge. In the actual cutting process, the operator needs to reasonably adjust the coolant pumping pressure with the help of the machine tool control panel according to the characteristics of the processing material (such as material hardness, aluminum alloy is soft, stainless steel is high in hardness; the thermal conductivity of the material is good or bad, etc.), cutting parameters (cutting speed, feed amount) and other conditions. When processing high-hardness alloy steel, the cutting heat is generated rapidly, and the pressure is appropriately increased to allow the coolant to rush to the blade more quickly and effectively, efficiently take away the cutting heat, maintain the cutting edge in a suitable working temperature range, and ensure that the cutting process is stable and efficient.

[0041] The third step is that as the milling cutter rotates at high speed along with the machine tool spindle, the air cooling mechanism based on the ingenious structure and layout of the tool handle body 1 is activated synchronously. On the tool handle body 1, the air inlet 14 is scientifically placed at an ideal position to fully capture the outside air. Its opening size is designed to be wide and regular, aiming to take in enough air to the maximum extent. When the tool handle body 1 starts to rotate at high speed, under the dual physical effects of centrifugal force pulling and pressure difference change, the outside air flows smoothly into the air inlet 14. After that, the air follows the air duct trajectory carefully planned in advance and cleverly guided by the internal structure, and is smoothly and orderly guided to the exhaust port 15. The exhaust port 15 is significantly smaller than the air inlet 14 in design size. Based on the principle of "shrinkage and pressure increase" in fluid mechanics, the air flow rate is significantly improved when it flows through this area. Just like the water flow speed increases when passing through a narrow river channel, the air is ejected rapidly from the exhaust port 15 and accurately reaches the outer wall surface of the cutting edge 11. During the cutting process, as the cutting edge 11 and the workpiece continue to rub violently, heat continues to accumulate on the outer wall of the cutting edge 11. At this moment, the accelerated air is like a stream of cool "air reinforcements", which continuously carries away the heat and effectively reduces the temperature of the cutting edge 11. Especially for long-term, high-intensity continuous cutting operations, such as batch processing of large mechanical parts, rough processing of mold cavities, etc., this air heat dissipation enhancement mechanism can significantly alleviate the problem of cutting edge overheating, stabilize the tool cutting performance, and reduce tool wear and deformation caused by high temperature, thereby ensuring that the processing accuracy is maintained at an ideal level.

[0042] The fourth step is to perform a key operation before officially starting the milling process. The operator manually rotates the limit ring 3, which fits tightly on the outer cylindrical surface of the handle body 1, and the two are linked by a precise thread structure. When the limit ring 3 is rotated, it is forced to rotate steadily and smoothly along the outer thread track of the handle body 1, so as to accurately adjust its position. During the rotation operation, the operator concentrates on observing the changes in the relative position relationship between the limit ring 3 and the rotating blade 32 until the limit ring 3 just breaks away from the restraining and locking state of the rotating blade 32, and then decisively stops the rotation operation.

[0043] Then, the machine tool is powered on and started. As the main shaft drives the tool holder body 1 to rotate at high speed, the rotating blades 32, which were originally fixed in position, are driven by the dual forces of centrifugal force and airflow impact, and quickly stretch outward and expand. At the beginning of the design of the rotating blades 32, the cutting environment requirements, the optimal airflow guidance effect and other factors were comprehensively considered, and the shape of the blades (such as the use of streamlined arc design to reduce air resistance), the number (reasonably configure the number of blades according to the size of the tool holder and the expected airflow intensity) and the arrangement layout (uniformly distributed around to ensure stable and balanced airflow output) were carefully planned.

[0044] During the cutting operation, the rotating blades 32 are like a group of "micro fans" running at high speed, which strongly drive the surrounding air to form a continuous, stable and directional airflow. This airflow rushes to the side of the cutting edge 11, playing two significant effects. First, it is like an additional "heat dissipation assistant", which continuously takes away part of the heat generated by the cutting edge 11, assists in enhancing the heat dissipation effect, and cooperates with the coolant and air accelerated heat dissipation mechanism to help the cutting edge maintain a good temperature state; second, it is like a flexible "chip cleaning broom", which efficiently blows the chips generated during the cutting process (whether it is metal chips, plastic chips, or fiber fragments of composite materials, etc.) away from the cutting edge 11 and the workpiece processing area, eliminates the interference of chip accumulation on the cutting process, prevents chips from scratching the surface of the workpiece, and avoids them from wrapping around the tool to affect the cutting effect, ensuring that the cutting operation is carried out smoothly and orderly.

[0045] The fifth step is to properly install the damping block 34 in the built-in hole 33 reserved inside the handle body 1 when using the left-right rotating cross-edge milling cutter for suppressing burrs. The built-in hole 33 is designed based on the engineering key points such as the internal stress distribution and the overall structural stability of the handle body 1. Its spatial shape is mostly regular columnar, and it may also be optimized to a special-shaped structure according to special needs. The core purpose is to provide a stable and adaptable placement space for the damping block 34. The damping block 34 is carefully made of high molecular polymer damping material. This type of material has excellent vibration reduction and energy dissipation performance due to its unique molecular chain structure and physical and chemical properties. Once the cutting operation is started, the cutting edge 11 will contact and cut the workpiece violently, which will inevitably produce vibration. The vibration is transmitted and diffused along the handle body 1 in the form of waves, just like ripples spreading on the water surface. When the vibration wave propagates to the built-in hole 33 area, the damping block 34 plays a key role. Relying on its own excellent viscoelasticity, it acts like a flexible "energy sponge" to efficiently absorb and dissipate vibration energy. For example, when processing precision mechanical parts with micron-level dimensional accuracy requirements, or when processing high-precision parts in the aerospace field with strict tolerance control requirements, the damping block 34 effectively suppresses the vibration amplitude and prevents the vibration from having a negative impact on key parameters such as the tool cutting trajectory and cutting depth, ensuring that the tool cutting action is accurate and stable, and effectively ensuring that the processing accuracy meets high standards.

[0046] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A left-right rotating cross-edge milling cutter for suppressing burrs, comprising a handle body (1), a cutting edge (11) and an end cover (12), wherein the cutting edge (11) comprises a right-handed cutting edge (2) and a left-handed cutting edge (21), characterized in that: The tool rake angle of the cutting edge (11) is 5° to 10°, the tool clearance angle of the cutting edge (11) is 10° to 12°, and the tool main deflection angle of the cutting edge (11) is less than 60°; Wherein, the handle body (1) is fixedly connected to the end cover (12); The right-handed blade (2) and the left-handed blade (21) intersect each other, a first chip removal groove (22) is provided between the right-handed blades (2), a second chip removal groove (23) is provided between the left-handed blades (21), and the intersection of the first chip removal groove (22) and the second chip removal groove (23) is connected; Wherein, the first chip removal groove (22) is a right-handed, right-cut 30° spiral, and the second chip removal groove (23) is a left-handed, right-cut 45° spiral.

2. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 1, characterized in that: The side end of the handle body (1) is symmetrically provided with a clamping end surface (13); Wherein, the clamping end surface (13) is located on one side of the end cover (12).

3. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 2, characterized in that: The side end of the handle body (1) is provided with a plurality of air inlets (14); Wherein, each of the air inlets (14) is distributed at an angle on the periphery of the handle body (1).

4. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 3, characterized in that: A plurality of air outlets (15) are arranged in the handle body (1); Wherein, each of the air exhaust ports (15) is connected to the air inlet (14), and each of the air exhaust ports (15) is arranged on one side of the chip removal groove (22).

5. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 4, characterized in that: The side end of the end cover (12) is provided with a liquid inlet hole (17), the handle body (1) and the cutting edge (11) are provided with a flow guide hole (18), and the side end of the left-handed blade (21) is provided with a liquid discharge hole (19); The positions of the liquid inlet hole (17) and the flow guide hole (18) correspond, and the liquid inlet hole (17), the flow guide hole (18) and the liquid discharge hole (19) are connected.

6. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 5, characterized in that: A limit ring (3) is threadedly mounted on the outer side of the handle body (1), and a built-in opening (31) is provided at the side end of the handle body (1); Wherein, the built-in opening (31) is correspondingly distributed on the outside of the exhaust opening (15).

7. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 6, characterized in that: A rotating blade (32) is rotatably mounted inside the built-in opening (31); Wherein, the limiting ring (3) is threadedly sleeved on the outer side of the rotating blade (32).

8. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 7, characterized in that: A built-in hole (33) is provided on the inner side of the handle body (1); Wherein, the built-in hole (33) is located at the center of the side end surface of the handle body (1).

9. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 8, characterized in that: A damping block (34) is arranged in the built-in hole (33); Wherein, the material of the damping block (34) is a high molecular polymer damping material.

10. A left-right rotating cross-edge milling cutter for suppressing burrs as claimed in claim 9, characterized in that: A limiting plug (35) is fixedly mounted on the side end of the end cover (12); Wherein, the limit plug (35) is correspondingly filled in the damping block (34).

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