Double-sided enhanced cutting blade and cutting tool

Abstract

The present invention relates to the technical field of cutting tools, and proposes a double-sided enhanced cutting blade and a cutting tool, which has a double-sided negative blade cutting feature with a special lateral side structure, can better ensure low cutting force and the guiding effect of the cutting direction, and has a specially set lateral mounting surface structure, which is beneficial to the stability of the installation and the enhancement of the blade strength. When matched and installed in the tool body, it is stronger than the positive blade and has a preload pressure due to its non-coplanar mounting surface structure, and thus has a better anti-loosening effect, and increases the stability of cutting processing. Based on the above-mentioned cutting blade, a tool with lower cutting force and stable and reliable is obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting tools, and in particular relates to a double-sided enhanced cutting blade and a cutting tool. Background Art

[0002] With the popularity of high-power spindle machine tools, more and more customers need to meet large cutting parameters, pursue high metal removal rate to achieve high-efficiency cutting, and at the same time have reliable clamping, stable cutting, and excellent processing performance. Therefore, the development of cutting tools with stable and reliable clamping and low cutting force has become particularly important. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the main purpose of the present invention is to provide a double-sided enhanced cutting insert and a cutting tool.

[0004] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0005] A double-sided enhanced cutting blade, rotationally symmetrical relative to the X axis; comprising:

[0006] An upper end surface, a lower end surface arranged opposite to the upper end surface, and a side surface connecting the upper end surface and the lower end surface;

[0007] Sides include:

[0008] A lateral side, comprising a main lateral side, the main lateral side comprising a first main lateral side and a third main lateral side, and the third main lateral side is partially adjacent to the first main lateral side, wherein the third main lateral side comprises a first lateral mounting surface and a second lateral mounting surface that are not coplanar, and the first lateral mounting surface and the second lateral mounting surface are parallel to the Z axis respectively;

[0009] longitudinal sides, which include a main longitudinal side;

[0010] A corner side surface, which is located between adjacent transverse side surfaces and longitudinal side surfaces, and includes a first corner side surface and a fourth corner side surface, wherein two ends of the main transverse side surface are respectively connected to the first corner side surface and the fourth corner side surface, and one end of the main longitudinal side surface is connected to the first corner side surface;

[0011] The blade portion formed at the intersection of the side surface and the upper end surface includes a main blade, and the main blade includes at least:

[0012] a main cutting edge, which is provided at the intersection of the main transverse side surface and the upper end surface;

[0013] A main corner cutting edge, which is provided at the intersection of the first corner side surface and the upper end surface;

[0014] A secondary corner cutting edge, which is provided at the intersection of the side surface of the fourth corner and the upper end surface;

[0015] Wherein, two ends of the main cutting edge are respectively connected to the main corner cutting edge and the secondary corner cutting edge;

[0016] Looking down at the upper end face from the Z-axis direction, the main cutting edge is convex;

[0017] Looking down at the main lateral side from the X-axis direction, the distance between the main cutting edge in the Z-axis direction and the Y-axis first decreases and then increases from the main corner cutting edge to the secondary corner cutting edge.

[0018] As a preferred solution of a double-sided enhanced cutting blade of the present invention, the lowest point of the distance between the main cutting edge in the Z-axis direction and the Y-axis is located on the side close to the secondary corner cutting edge.

[0019] As a preferred solution of a double-sided enhanced cutting blade of the present invention, the distance between the main corner cutting edge in the Z-axis direction and the Y-axis is greater than the distance between the secondary corner cutting edge in the Z-axis direction and the Y-axis.

[0020] As a preferred solution of a double-sided enhanced cutting insert of the present invention, the main lateral side further comprises a second main lateral side, a fourth main lateral side and a fifth main lateral side.

[0021] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, wherein: along the Z-axis direction from the upper end face to the lower end face, a first main lateral side, a third main lateral side, a fourth main lateral side and a second main lateral side are arranged in sequence on the side adjacent to the first corner side, wherein a portion of the first main lateral side is connected to the first lateral mounting surface in the third main lateral side, the first lateral mounting surface is connected to the fourth main lateral side, and the fourth main lateral side is connected to a portion of the second main lateral side.

[0022] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, wherein: looking down at the main longitudinal side surface from the Y-axis direction, along the Z-axis direction from the upper end surface to the lower end surface, on one side adjacent to the first corner side surface, there are arranged in sequence a first main lateral side surface inclined downward away from the center of the blade, a third main lateral side surface parallel to the Z-axis direction and not inclined, a fourth main lateral side surface inclined downward away from the center of the blade, and a second main lateral side surface inclined downward toward the center of the blade.

[0023] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, wherein: along the Z-axis direction from the upper end face to the lower end face, a first main lateral side, a fifth main lateral side, a third main lateral side and a second main lateral side are arranged in sequence on the side adjacent to the fourth corner side, wherein a portion of the first main lateral side is connected to the fifth main lateral side, the fifth main lateral side is connected to the second lateral mounting surface in the third main lateral side, and the second lateral mounting surface is connected to a portion of the second main lateral side.

[0024] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, the longitudinal side also includes a secondary longitudinal side, one end of which is connected to the fourth corner side. Looking down at the secondary longitudinal side from the Y-axis direction, along the Z-axis direction from the upper end face to the lower end face, on the side adjacent to the fourth corner side, there are arranged in sequence a first main lateral side inclined downward away from the center of the blade, a fifth main lateral side inclined downward toward the center of the blade, a third main lateral side parallel to the Z-axis direction and not inclined, and a second main lateral side inclined downward toward the center of the blade.

[0025] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, the first main lateral side surface is rotationally symmetrical and non-coplanar with the second main lateral side surface along the X-axis direction, the fourth main lateral side surface is rotationally symmetrical and non-coplanar with the fifth main lateral side surface along the X-axis direction, and the first lateral mounting surface is rotationally symmetrical and non-coplanar with the second lateral mounting surface along the X-axis direction.

[0026] As a preferred solution of a double-sided enhanced cutting blade of the present invention, when looking down at the upper end face from the Z-axis direction, the first main transverse side surface and the fourth main transverse side surface are visible, while the third main transverse side surface and the fifth main transverse side surface are not visible.

[0027] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, the intersection of the fourth main lateral side and the first lateral mounting surface forms an angle α3, and the intersection of the fifth main lateral side and the second lateral mounting surface also forms an angle α3, wherein 5°≤α3≤90°.

[0028] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, wherein: along the direction from the main corner cutting edge to the secondary corner cutting edge, the height M1 of the first lateral mounting surface gradually increases, and the height M4 of the second lateral mounting surface gradually decreases, and a maximum height M2 is formed at the intersection of the two; and M2>M1>M4.

[0029] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, the blade portion further includes a secondary edge, and the main edge further includes a secondary cutting edge, wherein the secondary edge and the secondary cutting edge are both located at the intersection of the main longitudinal side surface and the upper end surface, and the two ends of the secondary cutting edge are respectively connected to the secondary edge and the main corner cutting edge.

[0030] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, the main cutting edge is formed by the intersection of the first main lateral side and the main front cutting surface, the main corner cutting edge is formed by the intersection of the first corner side and the corner front cutting surface, the secondary cutting edge is formed by the intersection of the main longitudinal side and the secondary front cutting surface, the secondary corner cutting edge is formed by the intersection of the fourth corner side and the corner front cutting surface, and the secondary edge is formed by the intersection of the main longitudinal side and the secondary front surface.

[0031] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, wherein: in the cross section perpendicular to the Z axis and intersecting the third main lateral side and the main longitudinal side, the first lateral mounting surface forms an angle θ1 with the main longitudinal side, and the second lateral mounting surface forms an angle θ3 with the main longitudinal side, θ1≠90° and θ3≠90°; further, θ1>90° and θ1≠θ3; further, θ3<90° and θ1>θ3; further, θ1+θ3=180°.

[0032] As a preferred embodiment of a double-sided enhanced cutting blade of the present invention, in which: in the cross-section perpendicular to the Z axis and intersecting with the third main lateral side, the first lateral mounting surface intersects with the second lateral mounting surface at an angle θ2, and the vertex of θ2 is located in the middle area of ​​the main lateral side, and the angle θ2 is toward the internal opening of the cutting blade.

[0033] As a preferred solution of a double-sided enhanced cutting insert of the present invention, wherein: 140°≤θ2<180°, θ2>θ1>θ3.

[0034] As a preferred solution of a double-sided enhanced cutting insert of the present invention, the upper end surface has an upper mounting surface, and the lower end surface has a lower mounting surface.

[0035] As a preferred solution of a double-sided enhanced cutting blade of the present invention, the blade further comprises a blade hole penetrating the upper end surface and the lower end surface.

[0036] To solve the above technical problem, according to another aspect of the present invention, the present invention provides the following technical solution:

[0037] A cutting tool comprising:

[0038] A cutter body and the above-mentioned double-sided enhanced cutting insert;

[0039] The cutter body has at least one cutter particle groove, which includes a first transverse support surface, a second transverse support surface and a third support surface, which are matched with the first transverse mounting surface, the second transverse mounting surface and the mounting surface of the cutting blade respectively;

[0040] The first transverse supporting surface is inclined toward the inside of the blade body, and the second transverse supporting surface is inclined toward the inside of the blade body from a direction opposite to the first transverse supporting surface.

[0041] The beneficial effects of the present invention are as follows:

[0042] The present invention provides a double-sided enhanced cutting blade and cutting tool, which has a double-sided negative blade cutting feature with a special lateral side structure, can better ensure low cutting force and the guiding effect of the cutting direction, has a specially set lateral mounting surface structure, is beneficial to the stability of the installation and the enhancement of the blade strength, and when matched and installed on the tool body, it is stronger than the positive blade and has a preload pressure due to its non-coplanar mounting surface structure, and thus has a better anti-loosening effect and increases the stability of cutting processing. A tool with lower cutting force and stable and reliable is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0044] Figure 1 The structure of the double-sided enhanced cutting blade of the present invention is shown in FIG. Figure 1 ;

[0045] Figure 2 The structure of the double-sided enhanced cutting blade of the present invention is shown in FIG. Figure 2 ;

[0046] Figure 3 It is a schematic structural diagram of the lateral side of the double-sided enhanced cutting blade of the present invention;

[0047] Figure 4 It is a schematic structural diagram of the end surface of the double-sided enhanced cutting blade of the present invention;

[0048] Figure 5 It is a schematic structural diagram of the longitudinal side of the double-sided enhanced cutting blade of the present invention;

[0049] Figure 6 for Figure 4 Sectional view along AX-AX;

[0050] Figure 7 for Figure 4 Section along AY-AY in the middle;

[0051] Figure 8 for Figure 4 Section along WW;

[0052] Fig. 9 for Figure 4 Section along VV;

[0053] Fig.10 for Figure 5Sectional view along AA-AA;

[0054] Fig.11 for Figure 5 Section along AB-AB;

[0055] Fig.12 for Figure 5 Section along ZZ;

[0056] Fig.13 It is a schematic structural diagram of the cutting tool of the present invention.

[0057] The meanings of the reference numerals in the figure are: 100: blade; 200: knife body; 300: tool;

[0058] 2: Blade hole; 5: Main blade; 6: Secondary blade; 7: Corner side;

[0059] X-axis: a virtual horizontal axis that is perpendicular to the center of the horizontal side and runs through the horizontal side;

[0060] Y axis: a virtual longitudinal axis perpendicular to the center of the longitudinal side and running through the longitudinal side;

[0061] Z axis: vertical to the center of the end face and the direction of the virtual axis that runs through the end face;

[0062] 11: upper end surface; 12: lower end surface;

[0063] 31: major transverse side; 32: minor transverse side;

[0064] 41: main longitudinal side; 42: secondary longitudinal side;

[0065] 51: main cutting edge; 52: main corner cutting edge; 53: secondary cutting edge; 54: secondary corner cutting edge;

[0066] 71: first corner side; 72: second corner side; 73: third corner side; 74: fourth corner side;

[0067] 111: upper mounting surface; 112: main front section; 113: corner front section; 114: secondary front section; 115: secondary front surface; 121: lower mounting surface;

[0068] 311: first main transverse side surface; 312: second main transverse side surface; 313: third main transverse side surface; 314: fourth main transverse side surface; 315: fifth main transverse side surface; 3131: first transverse mounting surface; 3132: second transverse mounting surface;

[0069] 201: knife particle groove; 2011: first lateral support surface; 2012: second lateral support surface; 2013: third support surface.

[0070] Explanation of the arrow end marks in the figure:

[0071] None: indicates the entire area of ​​the orientation;

[0072] ~: indicates that the whole is like a blade;

[0073] Solid arrows: represent the surface within the small area;

[0074] Solid black dot: indicates the specific surface;

[0075] Hollow circle: represents line;

[0076] Solid square: indicates the specific line.

[0077] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0078] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0079] The present invention provides a double-sided enhanced cutting blade and a cutting tool, such as Figure 1-12 As shown, a double-sided enhanced cutting blade is rotationally symmetrical relative to the X axis; comprising:

[0080] An upper end surface 11, a lower end surface 12 disposed opposite to the upper end surface 11, and a side surface 20 connecting the upper end surface 11 and the lower end surface 12;

[0081] Side 20 includes:

[0082] A transverse side surface, comprising a main transverse side surface 31, wherein the main transverse side surface 31 comprises a first main transverse side surface 311 and a third main transverse side surface 313, wherein the third main transverse side surface 313 is partially adjacent to the first main transverse side surface 311, wherein the third main transverse side surface 313 comprises a first transverse mounting surface 3131 and a second transverse mounting surface 3132 which are not coplanar, and the first transverse mounting surface 3131 and the second transverse mounting surface 3132 are parallel to the Z axis respectively;

[0083] longitudinal sides, which include a main longitudinal side 41;

[0084] The corner side 7 is located between the adjacent lateral sides and longitudinal sides, and includes a first corner side 71 and a fourth corner side 74, wherein the two ends of the main lateral side 31 are respectively connected to the first corner side 71 and the fourth corner side 74, and one end of the main longitudinal side 41 is connected to the first corner side 71; the functional areas of the main lateral side 31 are reasonably partitioned and arranged, complementing each other, meeting the cutting strength while achieving better installation stability.

[0085] The edge portion formed at the intersection of the side surface 20 and the upper end surface 11 includes a main edge 5, and the main edge 5 includes at least:

[0086] a main cutting edge 51, which is provided at the intersection of the main transverse side surface 31 and the upper end surface 11;

[0087] a main corner cutting edge 52, which is disposed at the intersection of the first corner side surface 71 and the upper end surface 11;

[0088] A secondary corner cutting edge 54, which is disposed at the intersection of the fourth corner side surface 74 and the upper end surface 11;

[0089] Wherein, both ends of the main cutting edge 51 are connected to the main corner cutting edge 52 and the secondary corner cutting edge 54 respectively;

[0090] Looking down at the upper end surface 11 from the Z-axis direction, the main cutting edge 51 is convex;

[0091] Looking down at the main lateral side surface 31 from the X-axis direction, the distance between the main cutting edge 51 in the Z-axis direction and the Y-axis first decreases and then increases from the main corner cutting edge 52 toward the secondary corner cutting edge 54 .

[0092] The morphological features of the main cutting edge 51 at different viewing angles can reasonably meet the requirements of good machining side quality, the reduced portion of the main cutting edge 51 can better ensure low cutting force and the guiding role of the cutting direction, and the reverse increased portion of the main cutting edge 51 can ensure the primary requirement of a stronger cutting edge at a larger cutting depth, thereby making the cutting smoother and more stable. The structure of the lateral side is beneficial to the stability of the installation and the enhancement of the blade strength. When it is matched and installed in the cutter body, it is stronger than the positive blade and has preload pressure due to its non-coplanar mounting surface structure, thereby having a better anti-loosening effect and enhancing the stability of the cutting process.

[0093] In one embodiment of the present invention, the lowest point of the distance between the main cutting edge 51 in the Z-axis direction and the Y-axis is located on a side close to the secondary corner cutting edge 54 .

[0094] In one embodiment of the present invention, the distance between the primary corner cutting edge 52 in the Z-axis direction and the Y-axis is greater than the distance between the secondary corner cutting edge 54 in the Z-axis direction and the Y-axis.

[0095] In one embodiment of the present invention, the main transverse side surface 31 further includes a second main transverse side surface 312 , a fourth main transverse side surface 314 and a fifth main transverse side surface 315 .

[0096] In one embodiment of the present invention, along the Z-axis direction from the upper end face 11 to the lower end face 12, the first main transverse side face 311, the third main transverse side face 313, the fourth main transverse side face 314, and the second main transverse side face 312 are arranged in sequence on the side adjacent to the first corner side face 71, wherein a portion of the first main transverse side face 311 is connected to the first transverse mounting surface 3131 in the third main transverse side face 313, the first transverse mounting surface 3131 is connected to the fourth main transverse side face 314, and the fourth main transverse side face 314 is connected to a portion of the second main transverse side face 312. Looking down at the main longitudinal side face 41 from the Y-axis direction, along the Z-axis direction from the upper end face 11 to the lower end face 12, on the side adjacent to the first corner side face 71, the first main transverse side face 311 tilted downward away from the blade center, the third main transverse side face 313 parallel to the Z-axis direction and not tilted, the fourth main transverse side face 314 tilted downward away from the blade center, and the second main transverse side face 312 tilted downward toward the blade center are arranged in sequence. A first main lateral side 311 structure is set to be inclined downward away from the center of the blade, so that the cutting blade 100 has a strong main cutting edge 51, which plays a role in enhancing the strength of the cutting edge at a conventional cutting depth; a third main lateral side 313 structure is set to be parallel to the Z-axis direction and not inclined, so that the cutting blade 100 has sufficient installation surface space to provide guarantees for stable installation and large-parameter cutting, and the side installation area can be reasonably controlled to ensure stable cutting; a fourth main lateral side 314 structure is set to be inclined downward away from the center of the blade, which ensures the cutting edge strength at a large cutting depth while reducing the risk of the back tool face interfering with the workpiece during cutting; a second main lateral side 312 structure is set to be inclined downward close to the center of the blade, which further ensures the cutting edge strength while reducing the risk of interference with the workpiece.

[0097] In one embodiment of the present invention, along the Z-axis direction from the upper end face 11 to the lower end face 12, the first main transverse side face 311, the fifth main transverse side face 315, the third main transverse side face 313 and the second main transverse side face 312 are arranged in sequence on the side adjacent to the fourth corner side face 74, wherein a portion of the first main transverse side face 311 is connected to the fifth main transverse side face 315, the fifth main transverse side face 315 is connected to the second transverse mounting face 3132 in the third main transverse side face 313, and the second transverse mounting face 3132 is connected to a portion of the second main transverse side face 312. The functional areas of the main transverse side face 31 are reasonably arranged in zones, complementing each other, satisfying the cutting strength while achieving better installation stability, especially when the cutting depth exceeds half of the blade, i.e., when the cutting depth is large, sufficient cutting edge strength and a suitable anti-interference clearance between the back face of the cutting blade and the workpiece can be provided to ensure stable and reliable cutting. The longitudinal side also includes a secondary longitudinal side 42, one end of which is connected to the fourth corner side 74. Looking down at the secondary longitudinal side 42 from the Y-axis direction, along the Z-axis direction from the upper end surface 11 to the lower end surface 12, on the side adjacent to the fourth corner side 74, there are arranged in sequence a first main lateral side 311 inclined downward away from the center of the blade, a fifth main lateral side 315 inclined downward toward the center of the blade, a third main lateral side 313 parallel to the Z-axis direction and not inclined, and a second main lateral side 312 inclined downward toward the center of the blade. A first main lateral side 311 structure is set to be inclined downward away from the center of the blade, so that the cutting blade 100 has a strong main cutting edge 51, which plays a role in enhancing the strength of the cutting edge when the cutting depth is large; a fifth main lateral side 315 structure is set to be inclined downward close to the center of the blade, and is constructed so that the first main lateral side 311 of the main lateral sides 31 close to the corner side 7 is farthest from the center of the blade, which can ensure the cutting edge strength when the cutting depth is large while reducing the risk of the back tool face interfering with the workpiece during cutting; a third main lateral side 313 structure is set to be parallel to the Z-axis direction and not inclined, so that the cutting blade 100 has sufficient installation surface space to provide guarantees for stable installation and large-parameter cutting, and can reasonably control the side installation area to ensure stable cutting; a second main lateral side 312 structure is set to be inclined downward close to the center of the blade, and is constructed so that the main cutting edge 51 on the opposite side close to the corner side 7, that is, the lower end face 12 side, is closest to the center of the blade, which further ensures the cutting edge strength while reducing the risk of interference with the workpiece.

[0098] In one embodiment of the present invention, the first main transverse side surface 311 and the second main transverse side surface 312 are rotationally symmetrical and non-coplanar along the X-axis direction, the fourth main transverse side surface 314 and the fifth main transverse side surface 315 are rotationally symmetrical and non-coplanar along the X-axis direction, and the first transverse mounting surface 3131 and the second transverse mounting surface 3132 are rotationally symmetrical and non-coplanar along the X-axis direction. This structural arrangement can achieve double-sided enhanced stable and reliable cutting.

[0099] In one embodiment of the present invention, when looking down at the upper end face 11 from the Z-axis direction, the first main transverse side 311 and the fourth main transverse side 314 are visible, and the third main transverse side 313 and the fifth main transverse side 315 are invisible. This structure illustrates the enhanced stable and reliable cutting function of the blade of the present invention, the visible area can achieve enhanced cutting edge strength, and the invisible area can meet the cutting edge strength while reducing the risk of the back face interfering with the workpiece during cutting.

[0100] In one embodiment of the present invention, the intersection of the fourth main lateral side 314 and the first lateral mounting surface 3131 forms an angle α3, and the intersection of the fifth main lateral side 315 and the second lateral mounting surface 3132 also forms an angle α3, wherein 5°≤α3≤90°. The second lateral side 312 and the fourth lateral side 314 are reasonably arranged to enhance the cutting edge strength at a large cutting depth, and the reasonable angle range setting is easy to manufacture.

[0101] In one embodiment of the present invention, along the direction from the main corner cutting edge 52 to the secondary corner cutting edge 54, the height M1 of the first transverse mounting surface 3131 gradually increases, and the height M4 of the second transverse mounting surface (3132) gradually decreases, and the intersection of the two forms a maximum height of M2; the change relationship and layout of each surface of the third main transverse side surface 313 are defined, which can meet the requirements of blade strength, blade cutting force and reliable installation when different cutting depths are used, and effectively balance cutting performance and blade stability. And M2>M1>M4, further defining the size relationship of each surface of the third main transverse side surface 313, which can meet the requirements of blade strength, blade cutting force and reliable installation when different cutting depths are used, and effectively balance cutting performance and blade stability.

[0102] In one embodiment of the present invention, the blade portion further includes a secondary edge 6, and the main edge 5 further includes a secondary cutting edge 53, wherein the secondary edge 6 and the secondary cutting edge 53 are both located at the intersection of the main longitudinal side surface 41 and the upper end surface 11, and the two ends of the secondary cutting edge 53 are respectively connected to the secondary edge 6 and the main corner cutting edge 52. The structural features and the constitutive positions of the main edge 5 and the secondary edge 6 are further limited to ensure that the cutting of the blade is carried out in an orderly manner.

[0103] In one embodiment of the present invention, the main cutting edge 51 is formed by the intersection of the first main lateral side 311 and the main front cutting surface 112, the main corner cutting edge 52 is formed by the intersection of the first corner side 71 and the corner front cutting surface 113, the secondary cutting edge 53 is formed by the intersection of the main longitudinal side 41 and the secondary front cutting surface 114, the secondary corner cutting edge 54 is formed by the intersection of the fourth corner side 74 and the corner front cutting surface 113, and the secondary edge 6 is formed by the intersection of the main longitudinal side 41 and the secondary front face 115.

[0104] In one embodiment of the present invention, in the cross section perpendicular to the Z axis and intersecting the third main transverse side surface 313 and the main longitudinal side surface 41, the first transverse mounting surface 3131 forms an angle θ1 with the main longitudinal side surface 41, and the second transverse mounting surface 3132 forms an angle θ3 with the main longitudinal side surface 41, θ1≠90° and θ3≠90°; further elaborating the characteristics that the first transverse mounting surface 3131 and the second transverse mounting surface 3132 intersect with the main longitudinal side surface 41 at specific angles, by setting two mounting angles of non-90°, the blade itself has two inclined mounting surfaces, which is beneficial to enhance the installation stability and the anti-loosening effect during cutting. Further, θ1>90°, and θ1≠θ3; further clarifying the angle range of θ1 and the angle characteristics of θ1≠θ3, θ1>90° indicates that the first transverse mounting surface 3131 is inclined away from the center of the blade along the Y axis direction, which can effectively prevent the blade from moving in the opposite direction of the secondary edge, and the setting of θ1≠θ3 can further prevent the aforementioned function from failing. Furthermore, θ3<90°, and θ1>θ3; further clarify the angle range of θ3 and the angle size relationship characteristics of θ1 and θ3, θ3<90° indicates that the second lateral mounting surface 3132 is inclined toward the center of the blade along the Y-axis direction, which can effectively prevent the blade from moving toward the secondary edge, and the setting of θ1>θ3 can further prevent the aforementioned function from failing, and enhance the anti-movement effect as a whole. Furthermore, θ1+θ3=180°, further clarifying the angle size relationship characteristics of θ1 and θ3, θ1+θ3=180° indicates that the two angles complement each other, providing a basic guarantee for the third main lateral side to have a rotational symmetry feature along the X-axis, that is, ensuring the correct, stable and reliable installation of the double-sided blade.

[0105] In one embodiment of the present invention, in the cross section perpendicular to the Z axis and intersecting the third main lateral side 313, the first lateral mounting surface 3131 intersects with the second lateral mounting surface 3132 at an angle θ2, and the vertex of θ2 is located in the middle area of ​​the main lateral side 31, and the angle θ2 faces the inner opening of the cutting blade 100. It is further clarified that the third main lateral side 313 has the characteristic of extending from the middle area to both ends toward the center of the blade. Since the blade side mounting area itself has two inclined mounting surfaces, it is beneficial to enhance the installation stability and the anti-loosening effect during cutting, and a certain degree of self-locking and reliable installation is achieved while increasing the installation area, further ensuring the stable implementation of cutting.

[0106] In one embodiment of the present invention, 140°≤θ2<180°, further clarifying the angle range of θ2 of the third main lateral side 313. Optimizing the scheme, optimizing the self-locking effect and the effect of stable cutting implementation. And θ2>θ1>θ3, limiting the size relationship and layout of the angles of the third main lateral side 313, optimizing the scheme, optimizing the self-locking effect, installation stability and the effect of stable cutting implementation with anti-jumping.

[0107] In one embodiment of the present invention, the upper end surface 11 has an upper mounting surface 111 , and the lower end surface 12 has a lower mounting surface 121 .

[0108] In one embodiment of the present invention, the blade further comprises a blade hole 2 penetrating the upper end surface 11 and the lower end surface 12 .

[0109] The present invention also provides a cutting tool, such as Fig.13 As shown, including:

[0110] A cutter body 200 and the above-mentioned double-sided enhanced cutting insert 100;

[0111] The blade body 200 has at least one blade particle groove 201, which includes a first transverse support surface 2011, a second transverse support surface 2012 and a third support surface 2013, which are matched with the first transverse mounting surface 3131, the second transverse mounting surface 3132 and the upper mounting surface 111 or the lower mounting surface 121 of the cutting insert 100 respectively;

[0112] The first transverse supporting surface 2011 is inclined toward the inside of the blade body 200 , and the second transverse supporting surface 2012 is inclined toward the inside of the blade body 200 from a direction opposite to the first transverse supporting surface 2011 .

[0113] The special blade groove structure is inclined toward the inside of the blade body 200. When the loaded blade tends to jump, the special structure of the tool will wrap the blade to prevent it from escaping, further enhancing the tool's ability to prevent jumping, stable installation and reliable cutting.

[0114] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification under the inventive concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A double-sided enhanced cutting insert, characterized in that: Rotational symmetry about the X-axis; including: An upper end surface (11), a lower end surface (12) arranged opposite to the upper end surface (11), and a side surface (20) connecting the upper end surface (11) and the lower end surface (12); The side (20) comprises: A transverse side surface, comprising a main transverse side surface (31), wherein the main transverse side surface (31) comprises a first main transverse side surface (311) and a third main transverse side surface (313), and the third main transverse side surface (313) is partially adjacent to the first main transverse side surface (311), wherein the third main transverse side surface (313) comprises a first transverse mounting surface (3131) and a second transverse mounting surface (3132) which are not coplanar, and the first transverse mounting surface (3131) and the second transverse mounting surface (3132) are respectively parallel to the Z axis; longitudinal sides, comprising a main longitudinal side (41); A corner side surface (7), which is located between adjacent transverse side surfaces and longitudinal side surfaces, and includes a first corner side surface (71) and a fourth corner side surface (74), wherein two ends of the main transverse side surface (31) are respectively connected to the first corner side surface (71) and the fourth corner side surface (74), and one end of the main longitudinal side surface (41) is connected to the first corner side surface (71); The blade portion formed at the intersection of the side surface (20) and the upper end surface (11) includes a main blade (5), and the main blade (5) includes at least: A main cutting edge (51) is provided at the intersection of the main transverse side surface (31) and the upper end surface (11); A main corner cutting edge (52) is provided at the intersection of the first corner side surface (71) and the upper end surface (11); A secondary corner cutting edge (54) disposed at the intersection of the fourth corner side surface (74) and the upper end surface (11); Wherein, two ends of the main cutting edge (51) are respectively connected to the main corner cutting edge (52) and the secondary corner cutting edge (54); When looking down at the upper end surface (11) from the Z-axis direction, the main cutting edge (51) is convex; When looking down at the main transverse side surface (31) from the X-axis direction, the distance between the main cutting edge (51) in the Z-axis direction and the Y-axis first decreases and then increases from the main corner cutting edge (52) to the secondary corner cutting edge (54); The lowest point of the distance between the main cutting edge (51) in the Z-axis direction and the Y-axis is located on a side close to the secondary corner cutting edge (54); the distance between the main corner cutting edge (52) in the Z-axis direction and the Y-axis is greater than the distance between the secondary corner cutting edge (54) in the Z-axis direction and the Y-axis.

2. The double-sided enhanced cutting insert according to claim 1, characterized in that: The main transverse side (31) further includes a second main transverse side (312), a fourth main transverse side (314) and a fifth main transverse side (315).

3. The double-sided enhanced cutting insert according to claim 2, characterized in that: Along the Z-axis direction, from the upper end surface (11) to the lower end surface (12), a first main transverse side surface (311), a third main transverse side surface (313), a fourth main transverse side surface (314) and a second main transverse side surface (312) are sequentially arranged on the side adjacent to the first corner side surface (71), wherein a portion of the first main transverse side surface (311) is connected to a first transverse mounting surface (3131) in the third main transverse side surface (313), the first transverse mounting surface (3131) is connected to the fourth main transverse side surface (314), and the fourth main transverse side surface (314) is connected to a portion of the second main transverse side surface (312); Along the Z-axis direction from the upper end face (11) to the lower end face (12), on the side adjacent to the fourth corner side face (74), a first main transverse side face (311), a fifth main transverse side face (315), a third main transverse side face (313) and a second main transverse side face (312) are arranged in sequence, wherein a portion of the first main transverse side face (311) is connected to the fifth main transverse side face (315), the fifth main transverse side face (315) is connected to the second transverse mounting face (3132) in the third main transverse side face (313), and the second transverse mounting face (3132) is connected to a portion of the second main transverse side face (312).

4. The double-sided enhanced cutting insert according to claim 3, characterized in that: Looking down at the main longitudinal side surface (41) from the Y-axis direction, along the Z-axis direction from the upper end surface (11) to the lower end surface (12), on the side adjacent to the first corner side surface (71), there are arranged in sequence a first main transverse side surface (311) inclined downward away from the center of the blade, a third main transverse side surface (313) parallel to the Z-axis direction and not inclined, a fourth main transverse side surface (314) inclined downward away from the center of the blade, and a second main transverse side surface (312) inclined downward toward the center of the blade.

5. The double-sided enhanced cutting insert according to claim 3, characterized in that: The longitudinal side also includes a secondary longitudinal side (42), one end of which is connected to the fourth corner side (74). When looking down at the secondary longitudinal side (42) from the Y-axis direction, along the Z-axis direction from the upper end face (11) to the lower end face (12), on the side adjacent to the fourth corner side (74), there are arranged in sequence a first main transverse side (311) inclined downward away from the center of the blade, a fifth main transverse side (315) inclined downward toward the center of the blade, a third main transverse side (313) parallel to the Z-axis direction and not inclined, and a second main transverse side (312) inclined downward toward the center of the blade.

6. The double-sided enhanced cutting insert according to claim 3, characterized in that: The first main transverse side surface (311) and the second main transverse side surface (312) are rotationally symmetrical along the X-axis direction and are not coplanar, the fourth main transverse side surface (314) and the fifth main transverse side surface (315) are rotationally symmetrical along the X-axis direction and are not coplanar, and the first transverse mounting surface (3131) and the second transverse mounting surface (3132) are rotationally symmetrical along the X-axis direction and are not coplanar; Looking down at the upper end surface (11) from the Z-axis direction, the first main transverse side surface (311) and the fourth main transverse side surface (314) are visible, while the third main transverse side surface (313) and the fifth main transverse side surface (315) are not visible.

7. The double-sided enhanced cutting insert according to claim 3, characterized in that: The intersection of the fourth main transverse side surface (314) and the first transverse mounting surface (3131) forms an angle α3, and the intersection of the fifth main transverse side surface (315) and the second transverse mounting surface (3132) also forms an angle α3, wherein 5°≤α3≤90°.

8. The double-sided enhanced cutting insert according to claim 3, characterized in that: Along the direction from the main corner cutting edge (52) to the secondary corner cutting edge (54), the height M1 of the first transverse mounting surface (3131) gradually increases, and the height M4 of the second transverse mounting surface (3132) gradually decreases, and the maximum height M2 is formed at the intersection of the two; and M2>M1>M4.

9. The double-sided enhanced cutting insert according to claim 3, characterized in that: The blade portion further comprises a secondary cutting edge (6), and the main cutting edge (5) further comprises a secondary cutting edge (53), wherein the secondary cutting edge (6) and the secondary cutting edge (53) are both located at the intersection of the main longitudinal side surface (41) and the upper end surface (11), and the two ends of the secondary cutting edge (53) are respectively connected to the secondary cutting edge (6) and the main corner cutting edge (52).

10. The double-sided enhanced cutting insert according to claim 9, characterized in that: The main cutting edge (51) is formed by the intersection of the first main transverse side surface (311) and the main front cutting surface (112), the main corner cutting edge (52) is formed by the intersection of the first corner side surface (71) and the corner front cutting surface (113), the secondary cutting edge (53) is formed by the intersection of the main longitudinal side surface (41) and the secondary front cutting surface (114), the secondary corner cutting edge (54) is formed by the intersection of the fourth corner side surface (74) and the corner front cutting surface (113), and the secondary edge (6) is formed by the intersection of the main longitudinal side surface (41) and the secondary front surface (115).

11. The double-sided enhanced cutting insert according to claim 3, characterized in that: In the cross section perpendicular to the Z axis and intersecting the third main transverse side (313) and the main longitudinal side (41), the first transverse mounting surface (3131) forms an angle θ1 with the main longitudinal side (41), and the second transverse mounting surface (3132) forms an angle θ3 with the main longitudinal side (41), θ1≠90° and θ3≠90°.

12. The double-sided enhanced cutting insert according to claim 11, characterized in that: θ1>90°, and θ1≠θ3.

13. The double-sided enhanced cutting insert according to claim 12, characterized in that: θ3<90°, and θ1>θ3.

14. The double-sided enhanced cutting insert according to claim 13, characterized in that: θ1+θ3=180°.

15. The double-sided enhanced cutting insert according to claim 14, characterized in that: In the cross section perpendicular to the Z axis and intersecting with the third main lateral side (313), the first lateral mounting surface (3131) intersects with the second lateral mounting surface (3132) at an angle θ2, and the vertex of θ2 is located in the middle area of ​​the main lateral side (31), and the angle θ2 is toward the internal opening of the cutting blade (100).

16. The double-sided enhanced cutting insert according to claim 15, characterized in that: 140°≤θ2<180°.

17. The double-sided enhanced cutting insert according to claim 16, characterized in that: θ2>θ1>θ3.

18. The double-sided enhanced cutting insert according to claim 1, characterized in that: The upper end surface (11) has an upper mounting surface (111), and the lower end surface (12) has a lower mounting surface (121); the blade also includes a blade hole (2) penetrating the upper end surface (11) and the lower end surface (12).

19. A cutting tool, characterized in that: include: A tool body (200) and a cutting insert (100) according to any one of claims 1 to 18; The blade body (200) has at least one blade particle groove (201), which includes a first transverse support surface (2011) and a second transverse support surface (2012), which are matched with a first transverse mounting surface (3131) and a second transverse mounting surface (3132) of the cutting blade (100) respectively; The first transverse supporting surface (2011) is inclined toward the inside of the blade body (200), and the second transverse supporting surface (2012) is inclined toward the inside of the blade body (200) from a direction opposite to the first transverse supporting surface (2011).

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