Profiling indexable ball blade and milling tool
By introducing insert positioning and arc cutting edge design into the milling insert, the problems of fixed instability and large cutting resistance of traditional milling inserts at large cutting depths are solved, achieving more stable assembly and longer service life.
Patent Information
- Application Number
- CN202420519449.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-18
AI Technical Summary
In processing with a large cutting depth, traditional indexable milling inserts are easily pressed out of the tool holder due to the axial force component, resulting in unstable fixation and the fastening screws bear large forces.
A counterfeit indexable ball blade is designed, and its blade body includes an insert position and an arc-shaped cutting edge. The insert position matches the angle position on the tool rod body to enhance assembly stability; the arc-shaped cutting edge extends in a high middle and low ends, and uses a progressive contact method to participate in cutting to reduce cutting resistance.
By matching the insertion position and the angle position, more stable assembly and use is achieved; the design of the arc cutting edge reduces cutting resistance and extends the service life of the insert.
Smart Images
Figure CN222536408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of milling cutters, in particular to a profiled indexable ball blade and a milling tool. Background Art
[0002] In the field of cutting operations, connection devices of the type described below are increasingly frequently used as interfaces between different components included in a cutting tool, which connection devices are formed with cooperating male and female engagement members. Such connection devices are particularly frequently found in the interface between the body of the tool and (multiple) replaceable milling inserts.
[0003] A tool for profile milling, the tool comprising a conventional indexable milling insert for a profile milling cutter. This conventional milling insert comprises two cutting edges, each of which comprises a curved portion and a substantially straight portion connected to the curved portion. The milling insert is elliptical in shape as a whole in plan view. The bottom and side support surfaces of the milling insert are planar, and the fixation of the milling insert is mainly ensured by the tightening force from the fastening screw and the cooperation between the clearance surface of the milling insert and the side support surface of the tool holder. For this type of tool, especially in machining with a greater cutting depth, when only the curved portion of the cutting edge engages with the workpiece, a larger axial force component is generated, which will tend to press the milling insert out of its tool holder, which will subject the fastening screw to a greater force and make the fixation risk unstable. Utility Model Content
[0004] In view of this, the utility model provides a profiled indexable ball insert and a milling tool.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a profiling indexable ball blade, having a blade body, the blade body comprising: a top surface, a bottom surface and a side surface connected between the top surface and the bottom surface, and a center hole penetrating the top surface and the bottom surface is provided on the blade body; the side surface comprises: a first side surface and a second side surface, the first side surface is connected to the first end of the second side surface, and the first side surface and the second side surface extend from the first end to the second end with a certain curvature; the first side surface and the second end of the second side surface are connected through an inner concave surface, so that a blade clamping position concave toward the first end is formed on the blade body; the intersection of the first side surface and the top surface constitutes a first cutting edge, and the intersection of the second side surface and the bottom surface constitutes a second cutting edge, the first cutting edge and the second cutting edge extend in opposite directions respectively, so that the first cutting edge is higher than the top surface, and the second cutting edge is higher than the bottom surface; the first rake angle α2 of the second cutting edge is smaller than the first rake angle α1 of the first cutting edge, and the first rake angle length C2 of the second cutting edge is larger than the first rake angle length C1 of the first cutting edge.
[0006] In a further technical solution, a first band-shaped groove is formed on the top surface connected to the first cutting edge; a second band-shaped groove is formed on the bottom surface connected to the second cutting edge; the first band-shaped groove and the second band-shaped groove both extend from the first end to the second end of the blade body, the first band-shaped groove is concave toward the bottom surface, and the second band-shaped groove is concave toward the top surface.
[0007] In a further technical solution, the first side surface includes: a first connecting surface a and a second connecting surface a, and the angle between the first connecting surface a and the second connecting surface a is β1; the second side surface includes: a first connecting surface b and a second connecting surface b, and the angle between the first connecting surface b and the second connecting surface b is β2; the first connecting surface a and the second connecting surface a, the first connecting surface b and the second connecting surface b both extend from the first end of the blade body to the second end with a certain curvature, and the first connecting surface a is connected to the top surface, and the second connecting surface a is connected to the bottom surface; the first connecting surface b is connected to the bottom surface, and the second connecting surface b is connected to the top surface.
[0008] In a further technical solution, a connecting line A is formed between the first connecting surface a and the second connecting surface a, and a connecting line B is formed between the first connecting surface b and the second connecting surface b. The first connecting surface a extends in a direction away from the center hole during the process of extending from the connecting line A to the top surface; the first connecting surface b extends in a direction away from the center hole during the process of extending from the connecting line B to the bottom surface.
[0009] In a further technical solution, the first cutting edge and the second cutting edge extend from the first end to the second end of the blade body in a manner of being higher in the middle and lower at both ends.
[0010] In a further technical solution, the concave surface includes: a first concave surface and a second concave surface connected to each other, and the clamping angle between the first concave surface and the second concave surface is γ; with the connecting line C between the first concave surface and the second concave surface as the separator, the second end of the blade body constitutes a first clamping angle and a second clamping angle, and the first clamping angle and the second clamping angle are staggered up and down.
[0011] In a further technical solution, the first inner concave surface, the second inner concave surface, the first side surface and the second side surface are non-vertical planes in the vertical direction from the top surface to the bottom surface.
[0012] A milling tool comprises: a tool bar body rotating around an axis and the above-mentioned copy-type indexable ball insert assembled at the front end of the tool bar body.
[0013] In a further technical solution, the front end of the tool rod body constitutes at least two mounting positions for the forward and reverse assembly of the contoured indexable ball blade; the mounting position has a supporting surface and a clamping angle position corresponding to the blade clamping position; a clearance groove is formed between the supporting surface and the inner side wall of the mounting position.
[0014] In a further technical solution, an assembly mark is provided on the tool rod body.
[0015] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial technical effects:
[0016] The utility model adds a blade clamping position at the second end of the blade body, and the blade clamping position matches the clamping angle position on the tool rod body, so that the assembly is more stable during assembly. At the same time, when the milling tool rotates at a high speed, the clamping effect between the blade clamping position and the clamping angle position can effectively prevent the blade body from slipping.
[0017] The first inner concave surface, the second inner concave surface, the first side surface and the second side surface of the blade body of the utility model are non-vertical planes in the vertical direction from the top surface to the bottom surface, which are approximately inclined surfaces. Therefore, corresponding to the installation position of the arbor body, the inner side wall of the installation position should also be inclined, so as to form a dovetail clamping, which makes the assembly more stable.
[0018] The first cutting edge and the second cutting edge in the utility model are arc-shaped edges and have the highest point, which are extended in a manner of being high in the middle and low at both ends. During milling, they participate in cutting in a progressive contact manner, and the cutting method from point to surface can effectively reduce cutting resistance, thereby enhancing the service life of the blade.
[0019] Other beneficial technical effects of the present invention are embodied in the following specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0021] Figure 1 It is a schematic diagram of the top surface angle structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the bottom angle structure of the utility model;
[0023] Figure 3 It is a forward schematic diagram of the top surface angle in the utility model;
[0024] Figure 4 It is a reverse schematic diagram of the bottom surface angle in the utility model;
[0025] Figure 5 It is a schematic diagram of a side angle in the utility model;
[0026] Figure 6 for Figure 3 Schematic diagram of observation from the middle left viewing direction;
[0027] Figure 7 for Figure 3 Sectional view along the AP-AP' line;
[0028] Figure 8 is a schematic diagram of the structure of a milling tool;
[0029] Fig. 9 A schematic diagram of a reverse angle of a milling tool;
[0030] Fig.10 for Fig. 9 Sectional view along line Y-Y';
[0031] Fig.11 for Fig.10 The enlarged view of point A in the middle;
[0032] Fig.12 A schematic diagram of a bottom angle of a milling tool; DETAILED DESCRIPTION
[0033] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0034] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.
[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0036] A profiled indexable ball insert, see Figure 1-7As shown, there is a blade body 00, which is made of materials such as cemented carbide. When viewed from the top surface 10 or the bottom surface 20, the shape is roughly blade-shaped or eye-shaped; the blade body 00 has a top surface 10 and a bottom surface 20 facing each other, a side surface connected between the top surface 10 and the bottom surface 20, and a center hole 01 that passes through the top surface 10 and the bottom surface 20. The center hole 01 is for the convenience of subsequent installation of the blade body 00 on the mounting position of the arbor body 40, so that the blade body 00 can be stably locked in the mounting position by screws.
[0037] by Figure 3 As shown in the manner, the right side of the blade body 00 is defined as the first end, the left side of the blade body 00 is defined as the second end, and the second end of the blade body 00 is formed with a blade clamping position 02, which can enable the blade body 00 to be stably assembled on the arbor body 40.
[0038] The side surfaces include: a first side surface 31, a second side surface 32 and an inner concave surface 33. The first ends of the first side surface 31 and the second side surface 32 are connected and extend toward the second end of the blade body 00 with a certain curvature. The first side surface 31 and the second side surface 32 are connected at the second end of the blade body 00 through the inner concave surface 33. The formation of the inner concave surface 33 is due to the fact that the second end of the blade body 00 is recessed toward the first end, forming a blade clamping position 02. The setting of the blade clamping position 02 is for better limiting assembly on the arbor body 40 later.
[0039] The first side surface 31 protrudes and extends substantially in a direction away from the center hole 01 when extending from the bottom surface 20 to the top surface 10 , and the second side surface 32 protrudes and extends substantially in a direction away from the center hole 01 when extending from the top surface 10 to the bottom surface 20 .
[0040] The blade body 00 is provided with a first cutting edge 03 and a second cutting edge 04. The connection between the first side surface 31 and the top surface 10 constitutes the first cutting edge 03, and the connection between the second side surface 32 and the bottom surface 20 constitutes the second cutting edge 04. The first cutting edge 03 and the second cutting edge 04 both extend from the first end to the second end of the blade body 00.
[0041] From 3 and Figure 4 From the perspective of the horizontal plane, the first cutting edge 03 and the second cutting edge 04 are both arc-shaped edges, and the middle sections 031 and 041 are the highest, with the middle section being high and the sides being low; and from the perspective of Figure 5It can be seen that on the vertical plane, the first cutting edge 03 and the second cutting edge 04 are both arc-shaped edges, and the middle section is the highest, with a tendency of being high in the middle and low on both sides, that is, the first cutting edge 03 has a tendency to extend upward and outward relative to the top surface 10, and the second cutting edge 04 has a tendency to extend downward and outward relative to the bottom surface 20, and the extension directions of the first cutting edge 03 and the second cutting edge 04 are opposite; then, when the first cutting edge 03 and the second cutting edge 04 are in use, the middle sections 031 and 041 first contact the workpiece to be milled during cutting, and then the first cutting edge 03 and the second cutting edge 04 participate in cutting in a progressive contact manner, and the cutting method from point to surface can effectively reduce the cutting resistance, thereby enhancing the service life of the blade.
[0042] like Figure 3 As shown, the highest points of the first cutting edge 03 and the second cutting edge 04 are A'B', and a circle C' is drawn with the center of the central hole 01. The highest points of the first cutting edge 03 and the second cutting edge 04 are A'B' and are both located on the circle C'.
[0043] Figure 3 In the figure, make tangents A1 and A2 of the first cutting edge 03 and the second cutting edge 04, make an axis ML parallel to the tangents A1 and A2 and passing through the diameter of the center hole at the same time, the axis ML is the midline between the two tangents, and the top surface 01 is based on the axis ML.
[0044] The first side surface 31 includes: a first connection surface a311 and a second connection surface a312, and the angle between the first connection surface a311 and the second connection surface a312 is β1; the second side surface 32 includes: a first connection surface b321 and a second connection surface b322, and the angle between the first connection surface b321 and the second connection surface b322 is β2; β1=β2. The first connection surface a311 and the second connection surface a312, the first connection surface b321 and the second connection surface b322 are extended from the first end to the second end of the blade body 00 with a certain curvature, and the first connection surface a311 is connected to the top surface 10, and the second connection surface a312 is connected to the bottom surface 20; the first connection surface b321 is connected to the bottom surface 20, and the second connection surface b322 is connected to the top surface 10; the first connection surface a311 and the second connection surface a312, the first connection surface b321 and the second connection surface b322 are asymmetrical structures.
[0045] like Figure 5As shown, a first cutting edge first clearance angle θ1 is formed between the first connecting surface a311 and the first cutting edge 03, and a first cutting edge second clearance angle θ2 is formed between the second connecting surface a312 and the first cutting edge 03; a second cutting edge first clearance angle θ3 is formed between the first connecting surface b321 and the second cutting edge 04, and a second cutting edge second clearance angle θ4 is formed between the second connecting surface b322 and the second cutting edge 04, wherein θ1=θ3, θ2=θ4, and therefore, the above-mentioned β1=β2 is obtained.
[0046] The values of θ1 and θ3 are 5°, and the value range is 4°~6°; the values of θ2 and θ4 are 13°, and the value range is 11°~15°; when θ1=θ3=5°, θ2=θ4=13°, then β1=β2=8°.
[0047] Furthermore, a connection line A is formed between the first connection surface a311 and the second connection surface a312, and a connection line B is formed between the first connection surface b321 and the second connection surface b322. The first connection surface a311 extends from the connection line A to the top surface 10 in a direction away from the center hole 01; the first connection surface b321 extends from the connection line B to the bottom surface 20 in a direction away from the center hole 01. Figure 3 The lower edge of the middle blade body 00 is the second side surface 32. Figure 4 The lower edge of the middle blade body 00 is the first side surface 31 .
[0048] like Figure 7 As shown, the AP-AP' line is used as a cross-section, wherein the highest point A'B' is where the AP-AP' line passes through the first cutting edge 03 and the second cutting edge 04, the first rake angle α2 of the second cutting edge 04 is smaller than the first rake angle α1 of the first cutting edge 03, the reference line ML' is perpendicular to the axis ML, the angle between the blade tangent of the first cutting edge 03 and the reference line ML' is the first rake angle α1, α1=4°, and the value range of α1 can be 3°-5°; the angle between the blade tangent of the second cutting edge 04 and the reference line ML' is the first rake angle α2, α2=0°; α1>α2.
[0049] The first rake angle length C1 of the first cutting edge 03 is 0.14 mm, and the value of C1 is 0.11-0.17 mm; the first rake angle length C2 of the second cutting edge 04 is 0.17 mm, and the value of C2 is 0.14-0.2 mm, and C1<C2 must be satisfied.
[0050] like Figure 1 and Figure 2As shown, the top surface 10 is connected to the first cutting edge 03 and is formed with a first strip groove 11; the bottom surface 20 is connected to the second cutting edge 04 and is formed with a second strip groove 21; the first strip groove 11 and the second strip groove 21 both extend from the first end to the second end of the blade body 00, the first strip groove 11 is concave toward the bottom surface 20, and the second strip groove 21 is concave toward the top surface 10; the portion of the top surface 10 connected to the first strip groove 11 and the first side surface 31 is the first blade surface 12, and the portion of the bottom surface 20 connected to the first strip groove 11 and the first side surface 31 is the first blade surface 12. The portion of the second band-shaped groove 21 and the second side surface 32 is the second blade surface 22. The above-measured C1 is the width of the first blade surface 12, and C2 is the width of the second blade surface 22. The sum of the widths of the first blade surface 12 and the first band-shaped groove 11 is the groove width D1, and the sum of the widths of the second blade surface 22 and the second band-shaped groove 21 is the groove width D2. D1=1.5mm, and the value of D1 is 1.3-1.7mm; D2=1.7mm, and the value of D2 is 1.5-1.9mm. At the same time, D2>D1.
[0051] The first belt-shaped groove 11 and the second belt-shaped groove 21 are corresponding chip removal grooves, which can quickly discharge waste chips during cutting, thereby ensuring cutting capacity and smooth chip removal.
[0052] The blade clamping position 02 is set from the second inner concave of the blade body 00, so that the second end of the blade body 00 is roughly in the shape of a fish mouth; the inner concave surface 33 includes: a first inner concave surface 331 and a second inner concave surface 332 connected, and the clamping angle between the first inner concave surface 331 and the second inner concave surface 332 is γ, γ = 119°.
[0053] A blade clamping angle γ1 is formed between the axis ML and the second inner concave surface 332, where γ1 = 56°.
[0054] The connecting line C between the first inner concave surface 331 and the second inner concave surface 332 is a separation, and the second end of the blade body 00 forms a first clamping angle 05 and a second clamping angle 06, and the first clamping angle 05 and the second clamping angle 06 are staggered up and down; please refer to Figure 5 As shown, since the first cutting edge 03 and the second cutting edge 04 are high in the middle and low on both sides, the corresponding first clamping angle 05 and the second clamping angle 06 are Figure 5 The directions shown are staggered up and down, and from Figure 5 As shown, the beginning and the end of the first cutting edge 03 are not on a straight line parallel to the axis ML, and the beginning and the end of the second cutting edge 04 are also not on a straight line parallel to the axis ML.
[0055] Meanwhile, the first inner concave surface 331 , the second inner concave surface 332 , the first side surface 31 and the second side surface 32 are non-vertical planes in the vertical direction from the top surface 10 to the bottom surface 20 .
[0056] The first cutting edge 03 is a center edge. The center edge is a cutting edge configured to cut an area on the tool rotation axis when the insert body 00 is assembled to the tool holder body 40.
[0057] The second cutting edge 04 is a peripheral cutting edge. The peripheral cutting edge is a cutting edge that is arranged so as not to cut an area on the tool rotation axis when the insert body 00 is mounted on the arbor body 40 .
[0058] See below for more information. Figure 8-12 As shown, the tool bar body 40 equipped with the above-mentioned blade body 00 and the milling tool composed of the combination of the two are further described in detail.
[0059] The milling tool comprises a shank body 40 and a blade body 00 mounted on the front end of the shank body 40. The shank body 40 is made of a high-hardness alloy, and the front end of the shank body 40 is provided with a mounting position. There are two mounting positions, namely a first mounting position 401 and a second mounting position 402. The inner walls of the first mounting position 401 and the second mounting position 402 are support surfaces, and the inner side surface is in conflict with the side surface of the blade body 00. After the blade body 00 is assembled, the top surface 10 or the bottom surface 20 of the blade body 00 will be tightly attached to the support surface, and one side surface of the blade body 00 will be in close contact with the inner side surface, and the first side surface 31 or the second side surface 32 will be in close contact with the inner side surface of the mounting position.
[0060] During assembly, the first mounting position 401 installs the blade body 00 in the forward direction, while the second mounting position 402 installs the blade body 00 in the reverse direction. The forward direction here means that after assembly, the bottom surface 20 of the blade body 00 is in close contact with the support surface, and the top surface 10 faces outward; the reverse assembly here means that after assembly, the top surface 10 of the blade body 00 is in close contact with the support surface, and the bottom surface 20 faces outward; after assembly in this way, the milling tool has a first cutting edge 03 and a second cutting edge 04 working at the same time, the first cutting edge 03 is the center edge, and the second cutting edge 04 is the peripheral edge. The cooperation of the two can achieve good precision and efficient milling effect.
[0061] An assembly mark 42 is set on the first mounting position 401 and the second mounting position 402, or an assembly mark 42 is set on the tool rod body 40 corresponding to the first mounting position 401 and the second mounting position 402; in this embodiment, the top surface 10 is set with a symbol "C", and the bottom surface 20 is set with a symbol "K", then the assembly mark 42 on the first mounting position 401 is the symbol "C", and the assembly mark 42 on the second mounting position 402 is the symbol "C", which effectively prevents reverse installation.
[0062] The first mounting position 401 and the second mounting position 402 are both provided with a clamping angle position 41 corresponding to the blade clamping position 02; the second end of the blade body 00 is formed with the blade clamping position 02. During assembly, the first end of the blade body 00 is facing outward from the end of the arbor body 40, while the second end of the blade body 00 is facing inward and cooperates with the clamping angle position 41 of the first mounting position 401 and the second mounting position 402. The clamping angle position 41 here can just be inserted into the gap between the first inner concave surface 331 and the second inner concave surface 332. The side surface of the clamping angle position 41 conflicts with the first inner concave surface 331 and the second inner concave surface 332. The clamping position restriction can prevent slipping during the cutting process.
[0063] It is mentioned above that the first inner concave surface 331, the second inner concave surface 332, the first side surface 31 and the second side surface 32 are non-vertical planes in the vertical direction from the top surface 10 to the bottom surface 20. Figure 8 As shown in the orientation, it can be seen that a blade body 00 is assembled in the first mounting position 401 in a forward manner. At this time, the first side surface 31 of the blade body 00 faces outward, and the second side surface 32 faces inward and is tightly attached to the inner side surface of the first mounting position 401. Since the second side surface 32 is a non-vertical plane, and the first inner concave surface 331 and the second inner concave surface 332 are also non-vertical planes, the blade body 00 is installed in the first mounting position 401 in a dovetail clamping manner, and the inner side surface and the second side surface 32 form a reverse buckle to prevent the blade body 00 from loosening, and the clamping is firm and reliable.
[0064] A clearance slot is formed between the support surface and the inner side wall of the mounting position, and the clearance slot is used to prevent Figure 8 When used in the correct manner as shown, the second cutting edge 04 is prevented from being damaged when the first cutting edge 03 is in use.
[0065] like Fig.12 As shown, an angle f is formed between the support surface and the rotation axis L of the shank body 40, where f=10°.
[0066] Fig. 9 In the figure, the rotation axis L of the arbor body 40 passes through the blade body on the first mounting position 401, the first cutting edge 03 on the first mounting position 401 faces outward, and the second cutting edge on the second mounting position 402 faces outward. Therefore, the first cutting edge 03 is the center edge and the second mounting position 402 is the peripheral edge.
[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A profiled indexable ball insert having an insert body (00), wherein the insert body (00) comprises: The blade body (00) is provided with a center hole (01) penetrating the top surface (10) and the bottom surface (20), and the blade body (00) has a top surface (10), a bottom surface (20) and a side surface connected between the top surface (10) and the bottom surface (20); the characteristics are: The side surface comprises: a first side surface (31) and a second side surface (32), the first side surface (31) and the first end of the second side surface (32) are connected, and the first side surface (31) and the second side surface (32) extend from the first end to the second end with a certain curvature; the second ends of the first side surface (31) and the second side surface (32) are connected through an inner concave surface (33), so that a blade clamping position (02) concave toward the first end is formed on the blade body (00); the intersection of the first side surface (31) and the top surface (10) forms a first cutting edge (03), and the intersection of the second side surface (32) and the bottom surface (20) forms a second cutting edge (04), and the first cutting edge (03) and the second cutting edge (04) extend in opposite directions respectively, so that the first cutting edge (03) is higher than the top surface (10), and the second cutting edge (04) is higher than the bottom surface (20); The first rake angle α2 of the second cutting edge (04) is smaller than the first rake angle α1 of the first cutting edge (03), and the first rake angle length C2 of the second cutting edge (04) is larger than the first rake angle length C1 of the first cutting edge.
2. The profiled indexable ball insert according to claim 1, characterized in that: A first band-shaped groove (11) is formed on the top surface (10) and connected to the first cutting edge (03); a second band-shaped groove (21) is formed on the bottom surface (20) and connected to the second cutting edge (04); the first band-shaped groove (11) and the second band-shaped groove (21) both extend from the first end to the second end of the blade body (00), the first band-shaped groove (11) is concave toward the bottom surface (20), and the second band-shaped groove (21) is concave toward the top surface (10).
3. The profiled indexable ball insert according to claim 1, characterized in that: The first side surface (31) comprises: a first connecting surface a (311) and a second connecting surface a (312), and the angle between the first connecting surface a (311) and the second connecting surface a (312) is β1; the second side surface (32) comprises: a first connecting surface b (321) and a second connecting surface b (322), and the angle between the first connecting surface b (321) and the second connecting surface b (322) is β2; the first connecting surface a (311) and the second connecting surface a (312), the first connecting surface b (321) and the second connecting surface b (322) all extend from the first end to the second end of the blade body (00) with a certain curvature, and the first connecting surface a (311) is connected to the top surface (10), and the second connecting surface a (312) is connected to the bottom surface (20); the first connecting surface b (321) is connected to the bottom surface (20), and the second connecting surface b (322) is connected to the top surface (10).
4. The profiled indexable ball insert according to claim 3, characterized in that: A connecting line A is formed between the first connecting surface a (311) and the second connecting surface a (312), and a connecting line B is formed between the first connecting surface b (321) and the second connecting surface b (322). The first connecting surface a (311) extends in a direction away from the center hole (01) when extending from the connecting line A to the top surface (10); and the first connecting surface b (321) extends in a direction away from the center hole (01) when extending from the connecting line B to the bottom surface (20).
5. The profiled indexable ball insert according to claim 1, characterized in that: The first cutting edge (03) and the second cutting edge (04) extend from the first end to the second end of the blade body in a manner of being high in the middle and low at both ends.
6. The profiled indexable ball insert according to claim 1, characterized in that: The concave surface (33) includes: a first concave surface (331) and a second concave surface (332) connected to each other, and the clamping angle between the first concave surface (331) and the second concave surface (332) is γ; with the connecting line C between the first concave surface (331) and the second concave surface (332) as a separator, the second end of the blade body constitutes a first clamping angle (05) and a second clamping angle (06), and the first clamping angle (05) and the second clamping angle (06) are staggered up and down.
7. The profiled indexable ball insert according to claim 6, characterized in that: The first inner concave surface (331), the second inner concave surface (332), the first side surface (31) and the second side surface (32) are non-vertical planes in the vertical direction from the top surface (10) to the bottom surface (20).
8. Milling tool, characterized in that: include: A tool rod body (40) that rotates around an axis and a profiled indexable ball insert as claimed in any one of claims 1 to 7 that is mounted on the front end of the tool rod body (40).
9. The milling tool according to claim 8, characterized in that: The front end of the tool bar body forms at least two installation positions for positive and negative assembly of the profiled indexable ball blade; the installation position has a support surface and a clamping angle position (41) corresponding to the blade clamping position (02); A clearance slot is formed between the supporting surface and the inner side wall of the installation position.
10. The milling tool according to claim 9, characterized in that: An assembly mark (42) is arranged on the knife bar body.