Tool components and processing tools

Abstract

The present invention relates to the field of machining, and discloses a tool assembly and a machining tool. The tool assembly according to the present invention comprises a tool body, a first cutting portion and a second cutting portion, the outer periphery of the tool body being formed with a cutting edge; the first cutting portion and the second cutting portion are respectively arranged on the tool body and arranged in the extension direction of the cutting edge, the first cutting portion is formed with a first cutting edge, the second cutting portion is formed with a second cutting edge, and the first cutting edge and the second cutting edge are staggered in the machining direction of the tool body. The tool assembly according to the present invention reduces the effective length of the actual cutting edge by staggering the first cutting edge and the second cutting edge in the machining direction, thereby reducing the resistance of the workpiece to the tool assembly and the vibration of the tool assembly, improving the quality and precision of the workpiece machined by the tool assembly, and increasing the service life of the tool assembly.

Description

Technical Field

[0001] The invention relates to the field of machining, and in particular to a tool assembly and a machining tool. Background Art

[0002] In machining, rotating tools are prone to vibration during the cutting process, and during cutting, vibration will cause adverse consequences such as poor surface quality of the workpiece and reduced tool life. When the tool contacts the workpiece, the length of the effective cutting edge will affect the cutting resistance, and the magnitude of the resistance will directly affect the magnitude of the tool vibration. In related technologies, the tool mainly cuts by dividing the cutting edge into multiple separate main cutting edges to reduce the effective cutting length and thereby reduce the vibration of the tool. However, this method will result in no effective cutting edge between the two separate cutting edges to process the workpiece, and other tools need to be set up to compensate for the unprocessed position, which will increase the manufacturing accuracy, installation accuracy and processing cost of the tool. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a tool assembly. The tool assembly according to the present invention reduces the effective length of the actual cutting edge by staggering the first cutting edge and the second cutting edge in the machining direction, thereby reducing the resistance of the workpiece to the tool assembly and the vibration of the tool assembly, improving the quality and precision of the workpiece processed by the tool assembly, and increasing the service life of the tool assembly.

[0004] The present invention also provides a processing tool comprising the tool assembly.

[0005] The tool assembly according to the present invention comprises a tool body, a first cutting part and a second cutting part, the outer periphery of the tool body being formed with a cutting edge; the first cutting part and the second cutting part being respectively arranged on the tool body and in the extension direction of the cutting edge, the first cutting part being formed with a first cutting edge, the second cutting part being formed with a second cutting edge, the first cutting edge and the second cutting edge being staggered in the processing direction of the tool body.

[0006] The tool assembly reduces the effective length of the actual cutting edge by staggering the first cutting edge and the second cutting edge in the machining direction, thereby reducing the resistance of the workpiece to the tool assembly and the vibration of the tool assembly, so that the tool can distribute the cutting force more evenly during the cutting process, avoiding excessive load on a single cutting edge, helping to achieve a smoother cutting process, and improving stability during machining and the service life of the tool assembly.

[0007] According to an embodiment of the present invention, the first cutting portion and the second cutting portion are configured to be a plurality of portions alternately arranged on the cutting edge.

[0008] According to an embodiment of the present invention, the distances between the first cutting edge and the second cutting edge and the rotation center of the tool body are the same.

[0009] According to one embodiment of the present invention, the tool body has a first surface, a second surface and a side surface connected between the first surface and the second surface, the outer periphery of the first surface is configured as the cutting edge and is formed with the first cutting portion and the second cutting portion; wherein the first surface is configured as a polygon, and each edge of the first surface is formed with the first cutting portion and the second cutting portion.

[0010] According to an embodiment of the present invention, the first cutting edge of the first cutting portion protrudes from the top surface of the second cutting portion and / or the second cutting edge of the second cutting portion protrudes from the side surface of the first cutting portion.

[0011] According to one embodiment of the present invention, the distance between the first cutting edge and the second cutting edge in a direction perpendicular to the first surface is h, the distance between the first cutting edge and the second cutting edge in a direction parallel to the first surface is L, and satisfies: 2≤h / L≤5.

[0012] According to an embodiment of the present invention, the angle between the side wall of the first cutting portion and the direction perpendicular to the first surface is β1, the angle between the side wall of the second cutting portion and the direction perpendicular to the first surface is β2, and β2>β1 is satisfied.

[0013] According to one embodiment of the present invention, in the direction of cutting of the tool body around the rotation axis, the side surfaces of the first cutting portion and the second cutting portion facing the rotation direction are respectively constructed as the first rake face and the second rake face; wherein a protruding or recessed partition portion is formed on the first rake face.

[0014] According to an embodiment of the present invention, reverse planes respectively connected to the first rake face and the second rake face are formed on the first surface, and the reverse planes are inclined in a direction away from the cutting edge toward a direction away from the second surface.

[0015] According to an embodiment of the present invention, a flat surface parallel to the first surface is provided on the top of the reverse plane, and a height difference E between the flat surface and the first cutting edge in a direction perpendicular to the first surface is provided, and the following condition is satisfied: 0.03≤E≤0.5.

[0016] The processing tool according to the present invention will be briefly described below.

[0017] The processing tool according to the present invention includes the tool assembly in the above-mentioned embodiment. Since the processing tool according to the present invention is provided with the tool assembly in the above-mentioned embodiment, when the processing tool performs cutting processing on the workpiece, the tool assembly processes the workpiece through the first cutting edge and the second cutting edge staggered in the processing direction, thereby reducing the effective length of the actual cutting edge when the processing tool cuts the same position area of ​​the workpiece at the same time, reducing the resistance encountered by the processing tool, thereby reducing the vibration of the processing tool, and improving the processing accuracy and service life of the processing tool.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a structural diagram of a tool assembly according to one embodiment of the present invention;

[0021] Figure 2 is a top view of a tool assembly according to one embodiment of the present invention;

[0022] Figure 3 is a side view of a tool assembly according to one embodiment of the present invention;

[0023] Figure 4 is based on Figure 3 The middle circle shows a partial enlarged view of A;

[0024] Figure 5 is a cross-sectional view of a first cutting portion according to an embodiment of the present invention;

[0025] Figure 6 is a cross-sectional view of a second cutting portion according to an embodiment of the present invention;

[0026] Figure 7 is a schematic diagram of a tool assembly during cutting processing according to an embodiment of the present invention;

[0027] Figure 8 is an assembly diagram of a tool assembly according to one embodiment of the present invention.

[0028] Reference numerals:

[0029] Tool assembly 1;

[0030] Tool body 11, cutting edge 110, first surface 111, second surface 112, side surface 113;

[0031] A first cutting portion 12, a first cutting edge 121, and a first rake face 122;

[0032] A second cutting portion 13, a second cutting edge 131, and a second rake face 132;

[0033] A partition 14;

[0034] The counter plane 15 , the flat surface 16 , the mounting hole 161 , the curved cutting edge 101 , and the cutting edge revolution profile 102 . DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In machining, rotating tools are prone to vibration during the cutting process, and during cutting, vibration will cause adverse consequences such as poor surface quality of the workpiece and reduced tool life. When the tool contacts the workpiece, the length of the effective cutting edge will affect the cutting resistance, and the magnitude of the resistance will directly affect the magnitude of the tool vibration. In related technologies, the tool mainly cuts by dividing the cutting edge into multiple separate main cutting edges to reduce the effective cutting length and thereby reduce the vibration of the tool. However, this method will result in no effective cutting edge between the two separate cutting edges to process the workpiece, and other tools need to be set up to compensate for the unprocessed position, which will increase the manufacturing accuracy, installation accuracy and processing cost of the tool.

[0037] Reference below Figure 1-Figure 8 A tool assembly according to an embodiment of the present invention is described.

[0038] The tool assembly 1 according to the present invention includes a tool body 11, a first cutting part 12 and a second cutting part 13, and a cutting edge 110 is formed on the periphery of the tool body 11; the first cutting part 12 and the second cutting part 13 are respectively arranged on the tool body 11 and arranged in the extension direction of the cutting edge 110, the first cutting part 12 is formed with a first cutting edge 121, and the second cutting part 13 is formed with a second cutting edge 131, and the first cutting edge 121 and the second cutting edge 131 are staggered in the processing direction of the tool body 11.

[0039] The tool assembly 1 according to the present invention is provided with a cutting edge 110 on the periphery of the tool body 11. Figure 1 As shown here, Figure 1Taking the tool body 11 shown in as an example, the edges around the tool body 11 form cutting edges 110, and each cutting edge 110 is provided with a first cutting portion 12 and a second cutting portion 13. Correspondingly, a first cutting edge 121 is formed on the first cutting portion 12, and a second cutting edge 131 is formed on the second cutting portion 13. The arrangement of the first cutting edge 121 and the second cutting edge 131 enables each cutting edge 110 of the tool body 11 to have the ability to cut a workpiece. When cutting processing is performed, only the first cutting edge 121 and the second cutting edge 131 on one of the cutting edges 110 need to be used to cut the workpiece. When the corresponding first cutting edge 121 and / or second cutting edge 131 on the cutting edge 110 is worn and cannot be used, only the tool body 11 needs to be rotated a certain angle, and the first cutting edge 121 and the second cutting edge 131 on the other cutting edge 110 need to be used for cutting. The design of arranging cutting edges 110 around the tool body 11 enables one tool body 11 to be used multiple times, thereby increasing the service life of the tool assembly 1 and reducing the cost of replacing the tool body 11.

[0040] On the tool body 11, each cutting edge 110 is provided with a first cutting edge 121 and a second cutting edge 131, and the first cutting edge 121 and the second cutting edge 131 are staggered in the processing direction when the tool body 11 performs cutting processing on the workpiece. Figure 7 As shown, Figure 7 The cutting edge revolving profile 102 in the figure can be understood as the trajectory formed when the first cutting edge 121 and the second cutting edge 131 rotate around the rotation center of the tool body 11 when the tool body 11 is cutting. The processing direction at this time can be simply understood as the tangent direction of the center point of the first cutting edge 121 and the second cutting edge 131 on the cutting edge revolving profile 102, and the first cutting edge 121 and the second cutting edge 131 are staggered in the processing direction. Figure 7 Taking the rotation direction of the tool body 11 as counterclockwise as an example, when the tool body 11 cuts the workpiece, the first cutting edge 121 participates in the cutting before the second cutting edge 131. Figure 7 Understand, in Figure 7In the figure, when the first cutting edge 121 reaches point a, the second cutting edge 131 has not yet reached point a. At this time, it can be understood that the first cutting edge 121 has already cut the position corresponding to point a on the workpiece, but the second cutting edge 131 has not yet cut the position corresponding to point a on the workpiece. Therefore, in the direction of cutting, any position of the workpiece is always cut by the first cutting edge 121 first. After a period of time, the second cutting edge 131 cuts the position again to make up for the unprocessed area of ​​the first cutting edge 121. The design method of the first cutting edge 121 and the second cutting edge 131 reduces the effective length of the actual cutting edge. At the same time, the same position on the workpiece only generates resistance to one of the first cutting edge 121 and the second cutting edge 131, thereby reducing the vibration of the tool body 11, improving the quality and accuracy of the workpiece processed by the tool assembly 1, and increasing the service life of the tool assembly 1.

[0041] Compared with the method of adding additional tools in the related art, the tool assembly 1 of the present invention can achieve cutting requirements through the cooperation of the first cutting edge 121 and the second cutting edge 131 without adding additional tools. The manufacturing accuracy and installation accuracy requirements of the tool assembly 1 are more relaxed than those of the related art, and the assembly is simple and convenient, which can reduce manufacturing costs and has better practicality.

[0042] The tool assembly 1 distributes the cutting force more evenly during the cutting process by staggering the first cutting edge 121 and the second cutting edge 131 in the processing direction, thereby avoiding excessive load on a single cutting edge, helping to achieve a smoother cutting process, and improving the stability during processing and the service life of the tool assembly 1.

[0043] In some embodiments, a curved cutting edge 101 can be set between the first cutting portion 12 and the second cutting portion 13, and one end of the curved cutting edge 101 is connected to the first cutting edge 121. At the same time, the other end of the curved cutting edge 101 is connected to the second cutting edge 131. The curved cutting edge 101 cooperates with the first cutting edge 121 and the second cutting edge 131 to form a complete and continuous cutting edge. The complete cutting edge can form a smoother processing surface when cutting the workpiece, thereby improving the processing quality and aesthetics of the workpiece.

[0044] According to one embodiment of the present invention, the first cutting portion 12 and the second cutting portion 13 are configured as a plurality of cutting portions alternately arranged on the cutting edge 110. The first cutting portion 12 and the second cutting portion 13 are configured in the extending direction of the cutting edge 110, and the time when the first cutting edge 121 and the second cutting edge 131 cut the same position of the workpiece is different. Therefore, by configuring the first cutting portion 12 and the second cutting portion 13 as a plurality of cutting portions alternately arranged on the cutting edge 110, the cutting load can be more evenly distributed to each cutting edge, avoiding the cutting load from being concentrated on a certain area on the cutting edge 110, which helps to reduce the wear and damage of a single cutting edge due to overload, thereby extending the overall life of the tool. At the same time, the plurality of alternately arranged cutting edges can generate a more stable cutting force output during the cutting process, reduce the fluctuation of the cutting force, achieve a smoother cutting process, reduce vibration and noise, and thus improve machining accuracy.

[0045] According to one embodiment of the present invention, the first cutting edge 121 and the second cutting edge 131 are at the same distance from the rotation center of the tool body 11. Figure 7 As shown, at this time, the center of the cutting edge rotation profile 102 can be understood as the rotation center of the tool body 11, and the distance between the first cutting edge 121 and the rotation center of the tool body 11 is equal to the distance between the second cutting edge 131 and the rotation center of the tool body 11, ensuring that the motion trajectory of the first cutting edge 121 and the second cutting edge 131 during cutting processing is Figure 7 The cutting edge 121 and the second cutting edge 131 are arranged on the arc line of the cutting edge rotation profile 102 shown in the figure, thereby ensuring that the cutting accuracy of the first cutting edge 121 and the second cutting edge 131 are the same, reducing the machining error of the workpiece and improving the quality of the workpiece machined by the tool assembly 1.

[0046] According to one embodiment of the present invention, the tool body 11 has a first surface 111 and a second surface 112 and a side surface 113 connected between the first surface 111 and the second surface 112, the outer periphery of the first surface 111 is configured as a cutting edge 110 and is formed with a first cutting portion 12 and a second cutting portion 13; wherein the first surface 111 is configured as a polygon, and the edge of each first surface 111 is formed with a first cutting portion 12 and a second cutting portion 13.

[0047] Specifically, a first surface 111 and a second surface 112 are formed on the tool body 11. The periphery of the first surface 111 is configured as the cutting edge 110 in the above embodiment, and each cutting edge 110 is provided with a first cutting portion 12 and a second cutting portion 13. In order to improve the service life of the tool body 11, the first surface 111 can be configured as a polygon, for example, the first surface 111 can be a triangle, a quadrilateral, a pentagon or other polygons. Each side of the first surface 111 can be processed into a cutting edge 110. By processing the first surface 111 into a polygon, the number of cutting edges 110 can be increased. When the tool assembly 1 performs cutting processing on a workpiece, only the first cutting portion 12 and the second cutting portion 13 on one of the cutting edges 110 need to be used to process the workpiece. When the first cutting portion 12 and the second cutting portion 13 on one of the cutting edges 110 are worn, only the other cutting edge 110 needs to be used to continue processing. Therefore, the number of cutting edges 110 will affect the service life of the tool body 11. Constructing the first surface 111 into a polygon can increase the service life of the tool body 11.

[0048] According to one embodiment of the present invention, the first cutting edge 121 of the first cutting portion 12 protrudes from the top surface of the second cutting portion 13 and / or the second cutting edge 131 of the second cutting portion 13 protrudes from the side surface of the first cutting portion 12. During processing, the first cutting edge 121 of the first cutting portion 12 usually protrudes from the first surface 111, such as Figure 1 As shown, it can be simply understood that the first cutting edge 121 protrudes from the top surface of the second cutting portion 13 in the direction away from the second surface 112. The design of the first cutting edge 121 can make the first cutting edge 121 participate in cutting before the second cutting edge 131 when the tool body 11 participates in cutting processing, thereby reducing cutting resistance and cutting vibration. The second cutting edge 131 protrudes from the side surface of the first cutting portion 12. The design of the second cutting edge 131 is to ensure that the turning radius of the second cutting edge 131 is the same as that of the first cutting edge 121, that is, the second cutting edge 131 can make up for the unprocessed area of ​​the first cutting edge 121.

[0049] According to one embodiment of the present invention, the distance between the first cutting edge 121 and the second cutting edge 131 in a direction perpendicular to the first surface 111 is h, and the distance between the first cutting edge 121 and the second cutting edge 131 in a direction parallel to the first surface 111 is L, and satisfies: 2≤h / L≤5.

[0050] The positional relationship between the first cutting edge 121 and the second cutting edge 131 will affect the cutting process of the workpiece by the tool assembly 1. Specifically, Figure 4As shown, the first cutting edge 121 and the second cutting edge 131 have a height difference h in a direction perpendicular to the first surface 111. The setting of h ensures that the first cutting edge 121 participates in cutting first when the tool body 11 rotates; and the first cutting edge 121 and the second cutting edge 131 have a horizontal distance difference L in a direction parallel to the first surface 111. The setting of L is to make the second cutting edge 131 protrude from the side surface 113 of the tool body 11, thereby ensuring that the second cutting edge 131 can have the same rotation radius as the first cutting edge 121 while cutting behind the first cutting edge 121. It can also be understood that: if L is not set, that is, there is no horizontal distance difference between the first cutting edge 121 and the second cutting edge 131, the distance between the second cutting edge 131 and the side surface 113 of the tool body 11 will be too small, that is, the second cutting edge 131 protrudes from the side surface 113 of the tool body 11 by a small amount, thereby reducing the cutting accuracy of the second cutting edge 131 or even causing the second cutting edge 131 to be unable to cut.

[0051] In addition, h and L need to satisfy: 2≤h / L≤5. When h / L>5, that is, h is too large and L is too small. At this time, in order to make the first cutting edge 121 and the second cutting edge 131 have the same turning radius, the rotation axis of the tool body 11 needs to be moved away from the tool body 11, which will reduce the stability of the tool body 11 during operation and thus affect the machining accuracy; when h / L<2, that is, h is too small and L is too large, at this time, the second cutting edge 131 protrudes too much from the side 113 of the tool body 11, which will increase the wear of the second cutting edge 131 during cutting. The value of h / L is set between 2-5, which is a relatively appropriate ratio. Compared with other values, 2≤h / L≤5 helps to achieve a smoother and more efficient cutting process.

[0052] According to one embodiment of the present invention, the angle between the side wall of the first cutting portion 12 and the direction perpendicular to the first surface 111 is β1, the angle between the side wall of the second cutting portion 13 and the direction perpendicular to the first surface 111 is β2, and β2>β1 is satisfied.

[0053] like Figure 5 and Figure 6 As shown, β1 can be understood as the angle between the back face of the first cutting portion 12 and the direction perpendicular to the first surface 111; β2 can be understood as the angle between the back face of the second cutting portion 13 and the direction perpendicular to the first surface 111, β2>β1 makes the second cutting edge 131 protrude from the side 113 of the tool body 11, and makes the second cutting edge 131 have a horizontal distance difference with the first cutting edge 121 away from the tool body 11; and makes the second cutting portion 13 have a sufficient gap with the workpiece processing surface, and the sufficient gap can effectively reduce the wear of the back face of the tool body 11 and extend the service life of the tool body 11.

[0054] According to an embodiment of the present invention, in the direction of cutting of the tool body 11 around the rotation axis, the first cutting portion 12 and the second cutting portion 13 are respectively configured as a first rake face 122 and a second rake face 132 on one side facing the rotation direction; wherein a convex or concave partition 14 is formed on the first rake face 122. Figure 1 and Figure 2 As shown, taking the recessed partition 14 provided on the first cutting portion 12 as an example, when the recessed partition 14 is provided on the first front cutting surface 122, the recessed partition 14 can interrupt the first front cutting surface 122, thereby reducing the contact area between the first front cutting surface 122 and the iron chips generated during cutting, thereby reducing the friction of the iron chips on the first front cutting surface 122 when flowing through the first front cutting surface 122, thereby extending the service life of the tool assembly 1.

[0055] In some embodiments, the partition 14 may also be convex. Compared with the concave partition 14, the convex partition 14 reduces the friction and heat between the iron chips and the first rake surface 122 by breaking the iron chips in advance.

[0056] According to an embodiment of the present invention, a reverse plane 15 connected to the first rake face 122 and the second rake face 132 is formed on the first surface 111 , and the reverse plane 15 is inclined in a direction away from the cutting edge 110 and toward a direction away from the second surface 112 .

[0057] like Figure 1 and Figure 2 As shown, the tool body 11 can process a reverse plane 15 on the first surface 111, and the bottom of the reverse plane 15 is respectively connected to the first front cutting edge 122 and the second front cutting edge 132, and the top of the reverse plane 15 extends in the direction away from the cutting edge 110 toward the direction away from the second surface 112, so that the reverse plane 15 is tilted. During cutting, iron chips generated by the first cutting edge 121 and the second cutting edge 131 can contact the reverse plane 15 and be broken by the reverse plane 15 and fly out. The setting of the reverse plane 15 allows the iron chips to be able to separate from the tool body 11 and the workpiece surface in time, thereby avoiding the influence of the iron chips on the workpiece processing during processing.

[0058] In some embodiments, the angle between the reverse plane 15 and at least one first rake face 122 is θ1, the angle between the reverse plane 15 and at least one second rake face 132 is θ2, and θ1<θ2. During cutting, the iron chips flow through the rake face to reach the reverse plane 15, and the reverse plane 15 changes the curling of the iron chips to break the iron chips. Among them, the first cutting part 12 first participates in cutting and generates iron chips, and because θ1<θ2, the iron chips generated by the first cutting part 12 are curled tighter than those generated by the second cutting part 13, and can be broken first, so that they fly out earlier, thereby reducing the accumulation of iron chips and further reducing the wear of the knife assembly.

[0059] According to one embodiment of the present invention, a flat surface 16 is provided on the top of the reverse plane 15, and the flat surface 16 and the first cutting edge 121 have a height difference E in a direction perpendicular to the first surface 111, and satisfy: 0.03≤E≤0.5. Since the cutting edge and the rounded corner of the tool tip of the tool assembly 1 are relatively weak, they are easily damaged when the tool assembly 1 is inverted or transported, etc., and is subject to collision. Therefore, the tool assembly 1 is provided with a flat surface 16 higher than the first cutting edge 121, and the flat surface 16 is hit first when the tool assembly 1 is hit. At this time, since there is a height difference E between the flat surface 16 and the first cutting edge 121, the first cutting edge 121 and the second cutting edge 131 have a certain gap with the impact object, which can reduce the risk of damage to the cutting edge of the tool assembly 1 and improve the safety of the tool assembly 1.

[0060] It should be noted that E can satisfy: 0.03≤E≤0.5. When E<0.03mm, the protection effect of the flat surface 16 on the first cutting edge 121 is too low or even fails to protect the first cutting edge 121; and when E>0.5mm, the flat surface 16 will affect the first cutting edge 121 in cutting the workpiece; wherein, the value of E is preferably 0.2mm≥E≥0.1mm.

[0061] In some embodiments, a mounting hole 161 is provided on the flat surface 16 . When the tool body 11 is assembled with a driving device for controlling the rotation of the tool body 11 , fasteners such as screws can be passed through the mounting hole 161 to assemble and fix with the corresponding driving device.

[0062] The processing tool according to the present invention will be briefly described below.

[0063] The processing tool according to the present invention includes the tool assembly 1 in the above-mentioned embodiment. Since the processing tool according to the present invention is provided with the tool assembly 1 in the above-mentioned embodiment, when the processing tool performs cutting processing on the workpiece, the tool assembly 1 processes the workpiece through the first cutting edge 121 and the second cutting edge 131 staggered in the processing direction, thereby reducing the effective length of the actual cutting edge when the processing tool cuts the same position area of ​​the workpiece at the same time, reducing the resistance encountered by the processing tool, thereby reducing the vibration of the processing tool, and improving the processing accuracy and service life of the processing tool.

[0064] Description of the drawings: Figure 8 The “arrow” shown in FIG. 1 represents a processing direction after the tool body 11 is assembled.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0067] In the description of the present invention, "plurality" means two or more.

[0068] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0069] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0071] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tool assembly, characterized in that: include: A tool body (11), wherein a cutting edge (110) is formed on the periphery of the tool body (11), the tool body (11) comprising a first surface (111), a second surface (112), and a side surface (113) connected between the first surface (111) and the second surface (112), and the periphery of the first surface (111) is configured as the cutting edge (110); A first cutting portion (12) and a second cutting portion (13), the first cutting portion (12) and the second cutting portion (13) are respectively arranged on the tool body (11) and arranged in the extension direction of the cutting edge (110), the first cutting portion (12) is formed with a first cutting edge (121), the second cutting portion (13) is formed with a second cutting edge (131), the first cutting edge (121) and the second cutting edge (131) are arranged alternately in the processing direction of the tool body (11), the first cutting edge (121) of the first cutting portion (12) protrudes from the top surface of the second cutting portion (13), and the second cutting edge (131) of the second cutting portion (13) protrudes from the side surface of the first cutting portion (12); wherein The distance between the first cutting edge (121) and the second cutting edge (131) in a direction perpendicular to the first surface (111) is h, and the distance between the first cutting edge (121) and the second cutting edge (131) in a direction parallel to the first surface (111) is L, and the following conditions are satisfied: 2≤h / L≤5; The angle between the side wall of the first cutting portion (12) and the direction perpendicular to the first surface (111) is β1, the angle between the side wall of the second cutting portion (13) and the direction perpendicular to the first surface (111) is β2, and the following conditions are satisfied: β2>β1; In the direction of cutting of the tool body (11) around the rotation axis, the one side surfaces of the first cutting portion (12) and the second cutting portion (13) facing the rotation direction are respectively configured as a first rake face (122) and a second rake face (132); A reverse plane (15) is formed on the first surface (111) and is connected to the first front cutting edge (122) and the second front cutting edge (132) respectively. A flat surface (16) parallel to the first surface (111) is arranged on the top of the reverse plane (15). The flat surface (16) and the first cutting edge (121) have a height difference E in a direction perpendicular to the first surface (111), and the following condition is satisfied: 0.03 mm ≤ E ≤ 0.5 mm.

2. The tool assembly according to claim 1, characterized in that The first cutting portion (12) and the second cutting portion (13) are configured as a plurality of portions alternately arranged on the cutting edge (110).

3. The tool assembly according to claim 2, characterized in that: The first cutting edge (121) and the second cutting edge (131) are at the same distance from the rotation center of the tool body (11).

4. The tool assembly according to claim 3, characterized in that: The first surface (111) is configured as a polygon, and the first cutting portion (12) and the second cutting portion (13) are formed on the edge of each of the first surfaces (111).

5. The tool assembly according to claim 4, characterized in that A convex or concave partition (14) is formed on the first rake surface (122).

6. The tool assembly according to claim 5, characterized in that The counter plane (15) is inclined in a direction away from the cutting edge (110) toward a direction away from the second surface (112).

7. A processing tool, characterized in that: A tool assembly comprising any one of claims 1-6.

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