Cutting blade and cutting tool with same

Abstract

The cutting blade comprises a first end face, a second end face, a connecting side face and a chip removal part, wherein the first end face and the second end face are oppositely arranged in a spaced mode in the first direction, and the connecting side face is arranged between the two end faces and connected with the two end faces. The connecting side surface comprises two first side surfaces which are oppositely arranged at intervals along a second direction, two second side surfaces which are oppositely arranged at intervals along a third direction and a third side surface which is connected between the first side surfaces and the second side surfaces, and the first direction, the second direction and the third direction intersect pairwise; at least part of the first end face is sunken towards the second end face to form a chip removal part, the chip removal part is connected with the first side face, the third side face and the second side face, and cutting edges are formed at the joints of the chip removal part, the third side face, the first side face and the second side face. The chip removal portion extends obliquely with respect to the central plane. The cutting blade provided by the embodiment of the utility model is high in machining precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting tool technical field especially is a kind of cutting blade and cutting tool with it. BACKGROUND

[0002] With the continuous improvement of the precision requirement of workpiece in modern manufacturing, general cutting blade cannot meet the demand of machining.

[0003] In prior art, to improve the machining precision of workpiece, fine machining is usually carried out on workpiece in the last machining stage, but the machining quality of existing cutting tool for fine machining is poor, which leads to poor quality of workpiece after forming. SUMMARY

[0004] The utility model at least solves one of the technical problems in prior art. To this end, the utility model provides a kind of cutting blade, and the cutting blade is high in machining precision, thereby improving the forming quality of machined workpiece, and solves the technical problem that machining quality of machining tool is poor in prior art, and then leads to poor quality of workpiece.

[0005] The utility model also aims at providing a kind of cutting tool with the above cutting blade.

[0006] According to the cutting blade of the utility model embodiment, first end surface and second end surface are oppositely and spaced apart along first direction;Connecting side surface is arranged between the first end surface and the second end surface and is connected with the first end surface and the second end surface respectively, the connecting side surface includes two first side surfaces oppositely and spaced apart along second direction, two second side surfaces oppositely and spaced apart along third direction and third side surface, the third side surface is connected between the first side surface and the second side surface, the first direction, the second direction and the third direction are intersected two by two;Chip removal portion is recessed towards the second end surface at least part of the first end surface to form the chip removal portion, the chip removal portion is connected with the first side surface, the third side surface and the second side surface respectively, the connecting place of the chip removal portion and the third side surface forms first cutting edge, and the connecting place of the chip removal portion and the first side surface and the connecting place of the chip removal portion and the second side surface form second cutting edge;Wherein, the cutting blade has center plane through center, the center plane is parallel to the first direction, and the chip removal portion extends obliquely relative to the center plane.

[0007] According to the cutting blade, the chip removal part is arranged, so that the chip generated during cutting can be discharged by the chip removal part during the process of cutting the workpiece by the first cutting edge and the second cutting edge, the influence of chip accumulation on the cutting blade and the workpiece is avoided, the machining precision of the cutting blade on the workpiece is maximally ensured, the machining effect is improved, the machining quality of the workpiece is ensured, and the service life of the cutting blade is prolonged.

[0008] In some embodiments, the inclination angle of the chip removal part relative to the central plane is α, and 30°≤α≤60°.

[0009] In some embodiments, α=45°.

[0010] In some embodiments, the inclination angle of the first cutting edge relative to the first side surface or the second side surface is β, and 30°≤β≤60°.

[0011] In some embodiments, the second cutting edge is recessed towards the central axis of the cutting blade, the maximum recess depth of the second cutting edge is D, and D≤0.07mm.

[0012] In some embodiments, between the first side surface and the second side surface, the extension length of the first cutting edge is L1, and on the first side surface or the second side surface, the distance between the opposite ends of the second cutting edge is L2, and L2>L1.

[0013] In some embodiments, 1mm

[0014] In some embodiments, 2mm

[0015] In some embodiments, the chip removal part comprises a first chip removal part and a second chip removal part, the first chip removal part is connected to the third side surface, the second chip removal part is connected to one side of the first chip removal part away from the third side surface, the bottom surface of the first chip removal part is formed as a plane, and the bottom surface of the second chip removal part is formed as a curved surface.

[0016] In some embodiments, on the first side surface or the second side surface, the distance between the opposite ends of the first chip removal part is L3, and the distance between the opposite ends of the second chip removal part is L4, and 0.5mm

[0017] In some embodiments, the cutting blade comprises a plurality of third side surfaces and a plurality of chip removal parts, the plurality of third side surfaces and the plurality of chip removal parts are one-to-one corresponding, and the plurality of third side surfaces are centrally symmetrically arranged about the central axis of the cutting blade.

[0018] According to the cutting tool, the cutting blade is arranged on the cutter body, and the cutting blade is arranged on the cutter body.

[0019] According to the cutting tool, the cutting blade is arranged on the cutter body, and the cutting blade is arranged on the cutter body.

[0020] Additional aspects and advantages of the present application will become apparent from the following description, which is by way of illustration. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, with reference to the following figures, wherein:

[0022] Figure 1 It is a perspective view of the cutting blade of some embodiments of the present application.

[0023] Figure 2 It is a front view of the cutting blade of some embodiments of the present application.

[0024] Figure 3 It is a top view of the cutting blade of some embodiments of the present application.

[0025] Figure 4 It is Figure 3 It is an enlarged view of the region I.

[0026] Figure 5 It is Figure 3 It is a sectional view along line L-L.

[0027] Figure 6 It is a perspective view of the cutting tool of some embodiments of the present application.

[0028] REFERENCE NUMERALS:

[0029] 2000, cutting tool;

[0030] 1000, cutting blade;

[0031] 100, first end surface; 110, center plane;

[0032] 200, second end surface;

[0033] 300, connecting side surface; 310, first side surface; 320, second side surface; 400, third side surface;

[0034] 410, first cutting edge;

[0035] 420, second cutting edge;

[0036] 500, chip removal portion; 510, first chip removal portion; 520, second chip removal portion;

[0037] 600, mounting hole;

[0038] 1100, tool body; 1200, fastener. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and cannot be understood as limiting the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] The cutting insert 1000 of the embodiments of the present application is described below with reference to the drawings of the specification.

[0042] As shown in Figure 1 , the cutting insert 1000 according to the embodiments of the present application comprises a first end surface 100, a second end surface 200, a connecting side surface 300 and a chip removal portion 500.

[0043] Among them, the first end surface 100 and the second end surface 200 are oppositely and spacedly arranged along the first direction. It should be noted that the first direction referred to here can be understood as the Z direction shown in Figure 1 , that is, the first end surface 100 and the second end surface 200 are oppositely and spacedly arranged along the Z direction, so as to form the cutting insert 1000 having a certain size in the Z direction, so that the cutting insert 1000 has a certain volume, to a certain extent, to ensure the working performance of the cutting insert 1000.

[0044] In some embodiments, the second end surface 200 is formed as a mounting surface of the cutting insert 1000, in combination with Figure 1 and Figure 6As shown, the cutting insert 1000 is mounted on the tool body 1100 through the second end surface 200, and the provision of the second end surface 200 is conducive to increasing the contact area of the cutting insert 1000 and the tool body 1100, thereby ensuring the accuracy and stability of the mounting of the cutting insert 1000 and being conducive to improving the machining performance of the cutting insert 1000.

[0045] As shown, Figure 1 The connecting side surface 300 is arranged between and connected with the first end surface 100 and the second end surface 200, and the connecting side surface 300 includes two first side surfaces 310 arranged opposite to each other in the second direction, two second side surfaces 320 arranged opposite to each other in the third direction, and a third side surface 400 connected between the first side surface 310 and the second side surface 320, and the first direction, the second direction and the third direction are intersected with each other. Here, the connecting side surface 300 includes two first side surfaces 310, two second side surfaces 320 and a third side surface 400, the two first side surfaces 310 are arranged opposite to each other in the second direction, and the two second side surfaces 320 are arranged opposite to each other in the third direction, wherein the second direction can be understood as the X direction shown in Figure 1 , and the third direction can be understood as the Y direction shown in Figure 1 , and through the above arrangement, the connecting side surface 300 can be arranged to extend along the circumferential direction of the cutting insert 1000, so that when the connecting side surface 300 is connected with the first end surface 100 and the second end surface 200 respectively, the connecting side surface 300, the first end surface 100 and the second end surface 200 can support each other, so as to facilitate forming the cutting insert 1000 with stable structure and ensuring the working performance of the cutting insert 1000.

[0046] Meanwhile, by connecting the third side surface 400 between the first side surface 310 and the second side surface 320, the first side surface 310 and the second side surface 320 can be used to support the third side surface 400, thereby improving the positional stability of the third side surface 400 and ensuring the working performance of the third side surface 400 to a certain extent.

[0047] In combination with Figure 1 and Figure 2As shown, at least part of the first end surface 100 is recessed towards the second end surface 200 to form a chip removal portion 500, the chip removal portion 500 is connected with the first side surface 310, the third side surface 400 and the second side surface 320 respectively, the connection between the chip removal portion 500 and the third side surface 400 forms a first cutting edge 410, and the connection between the chip removal portion 500 and the first side surface 310 and the connection between the chip removal portion 500 and the second side surface 320 form a second cutting edge 420. The first cutting edge 410 and the second cutting edge 420 mainly contact the workpiece, which facilitates the removal of excess material on the workpiece to achieve the purpose of cutting the workpiece, so that the cutting insert 1000 has the effect of cutting the workpiece and ensures the working performance of the cutting insert 1000.

[0048] Wherein, by removing the excess material on the workpiece through the first cutting edge 410 and the second cutting edge 420, the workpiece can form a smooth surface or a complex profile shape to meet different engineering application scenarios.

[0049] At the same time, the cooperation of the first cutting edge 410 and the second cutting edge 420 can also improve the cutting effect on the workpiece, thereby improving the cutting quality of the cutting insert 1000.

[0050] In the actual cutting process of the workpiece, the first cutting edge 410 can be understood as a main cutting edge, which mainly undertakes the part of cutting work when machining the workpiece on the third side surface 400, and removes the excess material on the workpiece to achieve the purpose of finishing the workpiece. The second cutting edge 420 can be understood as a secondary cutting edge, which plays an auxiliary role in cutting the first cutting edge 410, and mainly polishes the workpiece surface left after the first cutting edge 410 cuts the workpiece to improve the surface quality of the workpiece.

[0051] In a specific example, the cutting insert 1000 is used to be arranged on the upper surface of the workpiece to machine the upper surface. When the first side surface 310 is arranged opposite to the upper surface of the workpiece, the second cutting edge 420 can be understood as being defined by the connection between the chip removal portion 500 and the first side surface 310; when the second side surface 320 is arranged opposite to the upper surface of the workpiece, the second cutting edge 420 can be understood as being defined by the connection between the chip removal portion 500 and the second side surface 320, so that the second cutting edge 420 is arranged opposite to the upper surface of the workpiece to polish the surface of the workpiece by using the second cutting edge 420.

[0052] In combination Figure 1 and Figure 2 As shown, the cutting insert 1000 has a center plane 110 passing through the center thereof, the center plane 110 is parallel to the first direction, and the chip removal portion 500 extends obliquely relative to the center plane 110.

[0053] It should be noted that during the process of machining the workpiece by the first cutting edge 410 and the second cutting edge 420, the excess material removed from the workpiece by the first cutting edge 410 and the second cutting edge 420 becomes the chip, and if the chip is not discharged in time, the chip accumulation will affect the cutting quality of the first cutting edge 410 and the second cutting edge 420, and further affect the machining quality of the workpiece, and the chip will also cause damage to the cutting blade 1000, and reduce the service life of the cutting blade 1000.

[0054] Therefore, the present application sets the chip removal portion 500 on the first end surface 100, and sets the chip removal portion 500 to extend obliquely relative to the center plane 110, so as to guide the chip by the chip removal portion 500, so that the chip can be discharged in time through the chip removal portion 500, to a certain extent, avoid chip accumulation, thereby reducing the influence of the chip on the cutting blade 1000, ensuring the working performance of the cutting blade 1000, and further ensuring the machining quality of the workpiece, and prolonging the service life of the cutting blade 1000.

[0055] Meanwhile, by setting at least part of the first end surface 100 to be recessed towards the second end surface 200 to form the chip removal portion 500, the forming difficulty of the chip removal portion 500 can also be reduced.

[0056] In a specific example, since at least part of the first end surface 100 is recessed towards the second end surface 200 to form the chip removal portion 500 extending obliquely relative to the center plane 110, and the chip removal portion 500 is arranged between the first side surface 310, the third side surface 400 and the second side surface 320, when the first cutting edge 410 and the second cutting edge 420 machine the workpiece, the generated chip can be concentrated in the chip removal portion 500, and when the cutting blade 1000 rotates, the chip can be uniformly guided to the outside of the cutting blade 1000 by the inclination angle of the chip removal portion 500, to achieve the purpose of guiding the chip, avoid the chip accumulation affecting the machining quality of the cutting blade 1000, and avoid reducing the service life of the cutting blade 1000.

[0057] As can be seen from the above structure, the cutting blade 1000 of the embodiment of the present application can discharge the chip generated when the first cutting edge 410 and the second cutting edge 420 machine the workpiece by setting the chip removal portion 500, avoid the influence of the chip accumulation on the cutting blade 1000 and the workpiece, to a certain extent, can ensure the machining precision of the cutting blade 1000, thereby ensuring the machining quality of the workpiece, and within a certain limit, prolonging the service life of the cutting blade 1000, and reducing the use cost of the cutting blade 1000.

[0058] It can be understood that, compared with the prior art, the cutting insert 1000 of the present application is provided with a chip removal portion 500 which extends obliquely relative to the center plane 110 so as to guide the discharge of the cutting chips by means of the chip removal portion 500, so that the cutting chips can be discharged in time, greatly ensuring the working performance of the cutting insert 1000 and prolonging the service life of the cutting insert 1000, and to some extent, ensuring the working performance of the cutting insert 1000.

[0059] In the description of the present application, the features defined as "first", "second", "third" can explicitly or implicitly include one or more of the features, for distinguishing the description features, without order and without difference.

[0060] In some embodiments, in combination with Figure 1 and Figure 3 As shown in the figure, the oblique angle of the chip removal portion 500 relative to the center plane 110 is α, wherein 30°≤α≤60°. So that the chip removal portion 500 can effectively extend obliquely relative to the center plane 110, to some extent, ensuring the chip removal performance of the chip removal portion 500.

[0061] At the same time, by setting 30°≤α≤60°, the oblique angle of the chip removal portion 500 relative to the center plane 110 is moderate, which is conducive to reducing the machining and manufacturing of the chip removal portion 500, and facilitating the machining of the chip removal portion 500 which is inclined relative to the center plane 110.

[0062] It should be further pointed out that, since the chip removal portion 500 is arranged between the first side surface 310, the third side surface 400 and the second side surface 320, the oblique angle of the chip removal portion 500 relative to the center plane 110 indirectly affects the extension length of the third side surface 400 between the first side surface 310 and the second side surface 320, and further affects the extension length of the first cutting edge 410, therefore, by setting 30°≤α≤60°, it is also conducive to making the extension length of the third side surface 400 between the first side surface 310 and the second side surface 320 moderate, improving the cutting effect of the first cutting edge 410, and thus improving the working performance of the cutting insert 1000.

[0063] In summary, by setting the oblique angle α of the chip removal portion 500 relative to the center plane 110 to satisfy 30°≤α≤60°, the machining difficulty of the chip removal portion 500 can be reduced while ensuring the chip removal performance of the chip removal portion 500 and the cutting effect of the first cutting edge 410.

[0064] Alternatively, α is 30°, 40°, 45°, 50° or 60°, etc.

[0065] In some embodiments, a = 45°. This further ensures the chip removal performance of the chip removal portion 500 and the cutting effect of the first cutting edge 410, and reduces the processing difficulty of the chip removal portion 500.

[0066] In some embodiments, in combination with Figure 3 and Figure 4 As shown in FIG. 10, the first cutting edge 410 is inclined to the first side surface 310 or the second side surface 320 by an angle β, where 30°≤β≤60°. This ensures that the first cutting edge 410 can effectively process the workpiece, while reducing the cutting resistance of the first cutting edge 410 when processing the workpiece, thereby reducing the cutting difficulty and prolonging the service life of the first cutting edge 410.

[0067] Optionally, β is 30°, 40°, 45°, 50°, or 60°, etc.

[0068] In some embodiments, in combination with Figure 3 and Figure 4 As shown in FIG. 10, the second cutting edge 420 is recessed towards the central axis of the cutting insert 1000, and the maximum recess depth of the second cutting edge 420 is D, where D≤0.07 mm. By setting the second cutting edge 420 to be recessed towards the central axis of the cutting insert 1000, the second cutting edge 420 can be used to further polish the surface of the workpiece, thereby ensuring the working performance of the second cutting edge 420 to some extent.

[0069] It should be noted that if the maximum recess depth D of the second cutting edge 420 is too large, the second cutting edge 420 will have too large a roughness when polishing the surface of the workpiece, which cannot achieve accurate polishing of the surface of the workpiece, and to some extent, reduces the finishing quality of the workpiece by the second cutting edge 420.

[0070] Therefore, the maximum recess depth D of the second cutting edge 420 recessed towards the central axis of the cutting insert 1000 is set to satisfy D≤0.07 mm, which can achieve further polishing of the surface of the workpiece by the second cutting edge 420, while ensuring the polishing effect of the second cutting edge 420 on the surface of the workpiece, thereby improving the finishing quality of the workpiece by the cutting insert 1000.

[0071] Optionally, D is 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, or 0.07 mm, etc.

[0072] It should be noted that, since the second cutting edge 420 is formed at the junction of the chip removal portion 500 and the first side surface 310 or at the junction of the chip removal portion 500 and the second side surface 320, at least part of the first side surface 310 and at least part of the second side surface 320 can be arranged to be recessed towards the central axis of the cutting insert 1000, and the maximum recess depth is less than or equal to 0.07 mm, so as to set the maximum recess depth D of the second cutting edge 420 to satisfy: D≤0.07 mm, thereby reducing the difficulty of forming the second cutting edge 420.

[0073] In some embodiments, as shown in Figs. 1-3, the first cutting edge 410 is formed at the junction of the chip removal portion 500 and the third side surface 400, and the second cutting edge 420 is formed at the junction of the chip removal portion 500 and the first side surface 310 or at the junction of the chip removal portion 500 and the second side surface 320. Figure 1 、 Figure 3 and Figure 4 In some embodiments, as shown in Figs. 1-3, the first cutting edge 410 is formed at the junction of the chip removal portion 500 and the third side surface 400, and the second cutting edge 420 is formed at the junction of the chip removal portion 500 and the first side surface 310 or at the junction of the chip removal portion 500 and the second side surface 320.

[0074] In some embodiments, as shown in Figs. 1-3, the first cutting edge 410 is formed at the junction of the chip removal portion 500 and the third side surface 400, and the second cutting edge 420 is formed at the junction of the chip removal portion 500 and the first side surface 310 or at the junction of the chip removal portion 500 and the second side surface 320.

[0075] In some embodiments, 1mm < L1≤2mm. When L1 is too short, the machining effect of the first cutting edge 410 on the workpiece will be affected, and the machining quality of the workpiece will be affected. When L1 is too long, the stability of the first cutting edge 410 in machining will be affected.

[0076] In summary, the present application sets the extension length L1 of the first cutting edge 410 to satisfy: 1mm < L1≤2mm, which can ensure that the first cutting edge 410 can meet the cutting depth requirement when machining the workpiece, and at the same time, the stability of the first cutting edge 410 in machining can be improved, thereby improving the machining effect.

[0077] Optionally, L1 is 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, or 2 mm, etc.

[0078] In some embodiments, 2 mm < L2≤ 3 mm. Wherein, when L2 is too short, i.e. the distance between the opposite ends of the second cutting edge 420 is too short, on the one hand, the machining performance of the second cutting edge 420 is reduced, and on the other hand, it is not conducive to the formation of the chip removal portion 500, affecting the chip removal effect of the chip removal portion 500; at the same time, because the cutting insert 1000 of the present application is mainly used for finishing machining of the workpiece in the workpiece machining process relative to the previous process, the cutting depth and feed of the cutting insert 1000 are relatively small in the finishing process, which is the most important process to ensure product quality, therefore, on the first side surface 310 or the second side surface 320, the distance between the opposite ends of the second cutting edge 420 does not need to be too long.

[0079] Based on this, the present application sets the distance L2 between the opposite ends of the second cutting edge 420 to satisfy: 2 mm < L2≤ 3 mm, which not only facilitates the formation of the chip removal portion 500 and ensures the chip removal effect of the chip removal portion 500, but also enables the second cutting edge 420 to meet the finishing requirements and ensure the machining quality of the workpiece.

[0080] Optionally, L2 is 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, or 3 mm, etc.

[0081] In some embodiments, in combination with Figure 3 , Figure 4 and Figure 5 as shown, the chip removal portion 500 includes a first chip removal portion 510 and a second chip removal portion 520, the first chip removal portion 510 is connected to the third side surface 400, and the second chip removal portion 520 is connected to the side of the first chip removal portion 510 away from the third side surface 400, the bottom surface of the first chip removal portion 510 is formed as a plane, and the bottom surface of the second chip removal portion 520 is formed as a curved surface. Here, it can be understood that when at least part of the first end surface 100 is set to be recessed towards the second end surface 200 to form the chip removal portion 500, the first end surface 100 is formed as a combination of a plane and a curved surface, which is conducive to concentrating the chips, so that when the cutting insert 1000 rotates, the chips can be uniformly guided and discharged to the outside of the cutting insert 1000, avoiding the accumulation of chips affecting the machining quality of the cutting insert 1000 and reducing the service life of the cutting insert 1000.

[0082] Meanwhile, since the first chip removal portion 510 is connected to the third side surface 400, by setting the bottom surface of the first chip removal portion 510 to be a plane, the connection strength of the first chip removal portion 510 and the third side surface 400 is increased, and the structural strength of the first cutting edge 410 is improved, which to some extent avoids the first cutting edge 410 from being broken during cutting, prolongs the service life of the first cutting edge 410, and improves the cutting performance of the first cutting edge 410; by setting the bottom surface of the second chip removal portion 520 to be a curved surface, the curved surface can be used to increase the accommodation space of the chip removal portion 500, which is conducive to the concentration of chips, so as to facilitate the discharge of chips, and achieve good chip removal effect.

[0083] In some embodiments, in combination with Figure 1 , Figure 3 and Figure 4 , the distance between the opposite ends of the first chip removal portion 510 on the first side surface 310 or the second side surface 320 is L3, and the distance between the opposite ends of the second chip removal portion 520 is L4, wherein 0.5mm That is, the distance between the opposite ends of the second chip removal portion 520 is greater than the distance between the opposite ends of the first chip removal portion 510, since the bottom surface of the second chip removal portion 520 is a curved surface, by the above setting, the first chip removal portion 510 and the second chip removal portion 520 are formed in the chip removal portion 500 at the same time, and the arc length of the curved surface can be ensured, which is conducive to increasing the accommodation space of the chip removal portion 500 and improving the chip removal effect of the chip removal portion 500.

[0084] Alternatively, L3 is 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm or 1.5mm, etc.; L4 is 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2mm, etc.

[0085] In some embodiments, in combination with Figure 1 and Figure 3As shown, the cutting insert 1000 comprises a plurality of third side surfaces 400 and a plurality of chip-removing portions 500, the plurality of third side surfaces 400 and the plurality of chip-removing portions 500 are one-to-one corresponding, and the plurality of third side surfaces 400 are centrally symmetrically arranged about the central axis of the cutting insert 1000. In order to form a plurality of first cutting edges 410 and a plurality of second cutting edges 420 on the cutting insert 1000, so that only one first cutting edge 410 and one second cutting edge 420 are used to cooperate to machine the workpiece in the process that the cutting insert 1000 actually machines the workpiece, the plurality of first cutting edges 410 and the plurality of second cutting edges 420 are arranged, when one of the first cutting edge 410 and the second cutting edge 420 is worn, the position of the cutting insert 1000 on the cutting tool 2000 can be adjusted, so as to use the remaining first cutting edges 410 and second cutting edges 420 on the cutting insert 1000 to machine the workpiece, prolong the service life of the cutting insert 1000, and reduce the use cost of the cutting insert 1000.

[0086] In the description of the present application, unless otherwise stated, "a plurality of" means two or more.

[0087] The cutting tool 2000 of the embodiment of the present application is described below with reference to the accompanying drawings of the specification.

[0088] As Figure 6 shown, the cutting tool 2000 according to the embodiment of the present application comprises a cutter body 1100 and a cutting insert 1000.

[0089] As Figure 6 shown, the cutting insert 1000 is the aforementioned cutting insert 1000, and the specific structure of the cutting insert 1000 is not described herein again, and the cutting insert 1000 is arranged on the cutter body 1100. It can be understood here that the cutting insert 1000 is fixedly connected to the cutter body 1100, and the cutter body 1100 serves to support the cutting insert 1000, so as to improve the position stability of the cutting insert 1000 and ensure the working performance of the cutting insert 1000 to a certain extent.

[0090] At the same time, the cutter body 1100 can also drive the cutting insert 1000 to rotate and move, so as to facilitate machining of the workpiece by the cutting insert 1000.

[0091] As can be seen from the above structure, the cutting tool 2000 of the embodiment of the present application, by adopting the aforementioned cutting insert 1000, not only ensures the working performance of the cutting tool 2000 to a certain extent, but also prolongs the service life of the cutting tool 2000.

[0092] In some embodiments, in combination with Figure 1 and Figure 6As shown, the cutting tool 2000 further comprises a fastener 1200, which is arranged in the mounting hole 600 of the cutting insert 1000 and is fixedly connected with the tool body 1100, so as to realize the arrangement of the cutting insert 1000 on the tool body 1100.

[0093] Wherein, the fastener 1200 can be understood as a screw, which can realize the fixed connection of the cutting insert 1000 and the tool body 1100, and can also make the cutting insert 1000 and the tool body 1100 form a detachable cooperation, so as to reduce the difficulty of mounting and dismounting the cutting insert 1000, and facilitate the replacement or adjustment of the position of the cutting insert 1000 relative to the tool body 1100.

[0094] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] The other configurations of the cutting insert 1000 and the cutting tool 2000 having the same according to the embodiments of the present application, such as the specific structure of the tool body 1100, are known to those skilled in the art, and will not be described in detail here.

[0096] In the description of the present application, the description of the terms "embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A cutting insert, characterized by, The cutting insert comprises: a first end surface (100) and a second end surface (200) oppositely and spacedly arranged along a first direction; a connecting side surface (300) arranged between and connected with the first end surface (100) and the second end surface (200), the connecting side surface (300) comprising two first side surfaces (310) oppositely and spacedly arranged along a second direction, two second side surfaces (320) oppositely and spacedly arranged along a third direction, and a third side surface (400) connected between the first side surface (310) and the second side surface (320), the first direction, the second direction and the third direction being intersected with each other; a chip removal portion (500) formed by recessing at least part of the first end surface (100) towards the second end surface (200), the chip removal portion (500) being connected with the first side surface (310), the third side surface (400) and the second side surface (320) respectively, a first cutting edge (410) being formed at the connection between the chip removal portion (500) and the third side surface (400), and a second cutting edge (420) being formed at the connection between the chip removal portion (500) and the first side surface (310) or the second side surface (320); wherein the cutting insert has a center plane (110) passing through the center thereof, the center plane (110) being parallel to the first direction, and the chip removal portion (500) extends obliquely relative to the center plane (110).

2. The cutting insert according to claim 1, characterized in that, An oblique angle of the chip removal portion (500) relative to the center plane (110) is α, wherein 30°≤α≤60°.

3. The cutting insert according to claim 2, characterized in that, α＝45°。 4. The cutting insert according to claim 1, characterized in that, An oblique angle of the first cutting edge (410) relative to the first side surface (310) or the second side surface (320) is β, wherein 30°≤β≤60°.

5. The cutting insert according to claim 1, wherein, The second cutting edge (420) is recessed towards a center axis of the cutting insert, a maximum recess depth of the second cutting edge (420) is D, and the D≤0.07mm.

6. The cutting insert according to claim 1, wherein Between the first side surface (310) and the second side surface (320), an extension length of the first cutting edge (410) is L1, and on the first side surface (310) or the second side surface (320), a distance between opposite ends of the second cutting edge (420) is L2, wherein L2>L1.

7. The cutting insert according to claim 6, characterized in that, 1mm<L1≤2mm.

8. The cutting insert according to claim 6, characterized in that, 2mm<L2≤3mm.

9. The cutting insert according to claim 1, wherein, The chip removal portion (500) comprises a first chip removal portion (510) connected to the third side surface (400) and a second chip removal portion (520) connected to a side of the first chip removal portion (510) away from the third side surface (400), a bottom surface of the first chip removal portion (510) is formed as a plane, and a bottom surface of the second chip removal portion (520) is formed as a curved surface.

10. The cutting insert according to claim 9, characterized in that, On the first side surface (310) or the second side surface (320), a distance between opposite ends of the first chip removal portion (510) is L3, and a distance between opposite ends of the second chip removal portion (520) is L4, wherein 0.5mm < L3 ≤ 1.5mm and 1mm < L4 ≤ 2mm.

11. The cutting insert according to any one of claims 1-10, wherein, The cutting insert comprises a plurality of third side surfaces (400) and a plurality of chip removal portions (500), the plurality of third side surfaces (400) and the plurality of chip removal portions (500) are in one-to-one correspondence, and the plurality of third side surfaces (400) are centrally symmetrically arranged about a central axis of the cutting insert.

12. A cutting tool characterized by Comprise: a tool body (1100); a cutting insert according to any one of claims 1-11, the cutting insert being arranged in the tool body (1100).

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