Blade, tool structure and machining apparatus

Abstract

The application relates to a blade, a cutter structure and a machining device. The blade comprises a body and a plurality of blade groups; the plurality of blade groups are sequentially arranged around the body along the circumference of the body and connected with the outer edge of the body; each blade group comprises a first blade section, a second blade section and a third blade section which are sequentially connected end to end; wherein any two of the first blade section, the second blade section and the third blade section are not collinear. The blade has multiple machining functions, can reduce the number of blades in use, save materials, and also save the time for changing the blade; meanwhile, the blade can be repeatedly used for multiple times, greatly prolongs the service life of the blade, and saves the cost.

Description

Technical Field

[0001] This application relates to the field of machining, and more particularly to a blade, tool structure, and machining equipment. Background Technology

[0002] The global manufacturing recovery, the rise of emerging markets, and technological advancements driving industrial upgrading have spurred the continuous expansion of the CNC machining market. Industries such as aerospace and automotive manufacturing are demanding higher precision and efficiency in machining. Technically, traditional machining equipment is equipped with tools that have a single function, only capable of machining a single dimension. Since parts are often constructed with combined features, such as countersunk surfaces, holes, and chamfers, multiple tools are required for machining, resulting in long processing times, high tooling costs, and continuously increasing labor and other auxiliary costs. Utility Model Content

[0003] This application provides a blade, a tool structure, and a processing device. The tool has different processing functions to at least partially solve the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a blade is provided, the blade comprising a body and a plurality of blade groups; the plurality of blade groups are arranged sequentially around the body along the circumference of the body and connected to the outer edge of the body, each blade group comprising a first blade segment, a second blade segment and a third blade segment connected end to end in sequence; wherein any two of the first blade segment, the second blade segment and the third blade segment are not collinear.

[0005] Optionally, in the plurality of blade groups, the first end of the first blade group is connected to the second end of the last blade group, and in any pair of adjacent blade groups, the second end of the preceding blade group is connected to the first end of the following blade group; wherein, the first end is the end of the first blade segment away from the second blade segment, and the second end is the end of the third blade segment away from the second blade segment.

[0006] Optionally, the plurality of blade groups are arranged at intervals around the outer edge of the body.

[0007] Optionally, the body has a rotationally symmetric structure, and the length of the outer edge of the body corresponding to the space between any pair of adjacent blade sets is equal.

[0008] Optionally, at least one of the blade groups further includes a fourth blade segment disposed between the second blade segment and the third blade segment in the same group, the curvature of the fourth blade segment being non-zero; one end of the fourth blade segment is connected to the end of the second blade segment near the third blade segment, and the other end of the fourth blade segment is connected to the end of the third blade segment near the second blade segment.

[0009] Optionally, at least one of the blade groups further includes a fifth blade segment that is not collinear with the third blade segment in the same group, the curvature of the fifth blade segment being zero, and one end of the fifth blade segment being connected to the end of the third blade segment in the same group that is away from the second blade segment; wherein, for a blade group including the fifth blade segment, the second end is the end of the fifth blade segment that is away from the third blade segment.

[0010] Optionally, the lengths of the first cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the second cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the third cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the fourth cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the fifth cutting edge segments of different cutting edge groups are all the same. The body has a centrally symmetrical structure, and a first mounting through hole is provided at the center point of the body.

[0011] Optionally, the curvature of the first cutting edge segment, the second cutting edge segment, and the third cutting edge segment is all zero.

[0012] Optionally, the number of blade groups is two, and the included angle between the blade segments connected to adjacent blade groups is between 300 degrees and 345 degrees.

[0013] Optionally, the included angle between the second cutting edge segment and the third cutting edge segment is greater than 180 degrees and less than or equal to 270 degrees, and the included angle between the first cutting edge segment and the second cutting edge segment is greater than 90 degrees and less than 180 degrees.

[0014] According to a second aspect of this application, a cutting tool structure is provided, comprising: a tool holder; a drill bit disposed on the tool holder; and the aforementioned blade, the blade being detachably disposed on the tool holder and located on one side of the drill bit, the circumferential surface of the blade corresponding to the side surface of the drill bit, and one of the cutting edge groups protruding from the edge of the tool holder and the first cutting edge segment of the cutting edge group abutting against the side surface of the drill bit at one end away from the second cutting edge segment.

[0015] Optionally, one end of the tool holder is provided with a second mounting through hole extending in a first direction and a mounting surface extending in the first direction, one end of the drill bit extends into the second mounting through hole, and one side surface of the cutting blade in its thickness direction is attached to the mounting surface.

[0016] According to a third aspect of this application, a processing apparatus is also provided, including a drive device and the aforementioned cutting tool structure, wherein the drive device is connected to the tool holder and is used to drive the tool holder to rotate.

[0017] When machining a part using an insert, the insert is rotated, and the cutting edges on the insert interact with the part. Since each cutting edge group includes multiple non-collinear cutting segments, different cutting segments within the same cutting edge group can machine different surfaces on the part. This allows a single insert to perform multiple machining functions, reducing the number of inserts needed, saving materials, and saving tool change time. Furthermore, because there are multiple cutting edge groups distributed sequentially along the circumference of the insert body, there are also multiple first cutting segments, all spaced apart along the circumference of the insert body; multiple second cutting segments, all spaced apart along the circumference of the insert body; and multiple third cutting segments, all spaced apart along the circumference of the insert body. Thus, during the use of the insert, when one cutting edge group (including the first, second, and third cutting segments) wears out, other cutting edge groups can be switched to continue using the insert by adjusting the insert's mounting method. In other words, the insert can be reused multiple times, greatly extending its service life and saving costs.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0021] Figure 1 This is a schematic diagram of the front view structure of a blade provided in an exemplary embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the front view structure of another blade provided in an exemplary embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the front view structure of another blade provided in an exemplary embodiment of this application;

[0024] Figure 4 This is an exploded structural diagram of the cutting tool structure provided in an exemplary embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of the processing equipment provided in an exemplary embodiment of this application;

[0026] Figures 6 to 8 This is a schematic diagram of a cutting tool structure provided in an exemplary embodiment of this application performing cutting operations on a part.

[0027] Explanation of reference numerals in the attached figures:

[0028] A. Parts;

[0029] 100. Blade; 10. Blade assembly; 101. First blade section; 102. Second blade section; 103. Third blade section; 104. Fourth blade section; 105. Fifth blade section; 11. Body; 111. First mounting through hole;

[0030] 200. Tool structure; 21. Tool holder; 211. Second mounting through hole; 212. Mounting surface; 22. Drill bit;

[0031] 300. Processing equipment; 31. Drive unit. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0033] Firstly, please see Figures 1 to 8 This application provides a cutting tool 100 for machining part A in conjunction with a drill bit 22. As an example, the drill bit 22 is used to drill a hole in part A, and the cutting tool 100 is used to chamfer the hole drilled by the drill bit 22. At the same time, the cutting tool 100 is also used to mill part A to form a countersunk plate communicating with the drill hole.

[0034] Specifically, please see Figures 1 to 3 The edge of the blade 100 is a cutting edge. The blade 100 includes a body 11 and multiple cutting edge groups 10, which are disposed on the body 11. Specifically, the multiple cutting edge groups 10 are arranged sequentially around the body 11 along its circumference and connected to the outer edge of the body 11. Each cutting edge group 10 includes a first cutting edge segment 101, a second cutting edge segment 102, and a third cutting edge segment 103 connected end to end in sequence. Any two cutting edge segments among the first cutting edge segment 101, the second cutting edge segment 102, and the third cutting edge segment 103 are not collinear.

[0035] The cutting tool 100 can be made of a material with high hardness. The material of the cutting tool 100 includes, but is not limited to, cemented carbide, diamond, etc. The edge of the cutting tool 100 is a cutting edge, which interacts with the workpiece when the cutting tool 100 is used to machine it.

[0036] Specifically, the blade 100 includes a body 11 and a blade assembly 10, with the blade assembly 10 constituting the cutting edge of the blade 100. Typically, there is one body 11 and multiple blade assemblies 10, i.e., two or more, such as two, three, or four blade assemblies 10, which is not limited here. The blade assembly 10 is disposed on the body 11. Optionally, the body 11 and the blade assembly 10 are integrally formed to enhance the strength of their connection. The blade assembly 10 is located on the periphery of the body 11, and the blade assembly 10 is connected to the outer edge of the body 11, causing the blade assembly 10 to protrude from the body 11, extending outward from the edge of the body 11. Since there are multiple blade assemblies 10, all blade assemblies 10 are arranged sequentially around the body 11 along its circumference, and all blade assemblies 10 are connected to the outer edge of the body 11.

[0037] Each blade assembly 10 includes a first blade segment 101, a second blade segment 102, and a third blade segment 103 connected end to end in sequence. That is, the first blade segment 101, the second blade segment 102, and the third blade segment 103 are distributed sequentially, wherein one end of the first blade segment 101 is connected to one end of the second blade segment 102, which can be a direct connection or an indirect connection; the other end of the second blade segment 102 is connected to one end of the third blade segment 103, which can be a direct connection or an indirect connection.

[0038] Typically, any two of the first cutting edge segments 101, the second cutting edge segment 102, and the third cutting edge segment 103 are not collinear. That is, the first cutting edge segment 101 and the second cutting edge segment 102 are not collinear, the second cutting edge segment 102 and the third cutting edge segment 103 are not collinear, and the first cutting edge segment 101 and the third cutting edge segment 103 are also not collinear. However, it should be noted that the first cutting edge segment 101 can be a straight cutting edge segment with zero curvature or a curved cutting edge segment with non-zero curvature. Similarly, the second cutting edge segment 102 can be a straight cutting edge segment with zero curvature or a curved cutting edge segment with non-zero curvature, and the third cutting edge segment 103 can be a straight cutting edge segment with zero curvature or a curved cutting edge segment with non-zero curvature.

[0039] When using the blade 100 to process a part, the blade 100 is pushed to rotate, and the cutting edge group 10 on the blade 100 interacts with the part. Since each cutting edge group 10 includes multiple non-collinear cutting edge segments, different cutting edge segments in the same cutting edge group 10 can process different surfaces on the part, so that a single blade 100 has multiple processing functions. In this way, the number of blades 100 can be reduced, materials can be saved, and tool changing time can be saved.

[0040] Furthermore, since there are multiple blade groups 10, and these multiple blade groups 10 are distributed sequentially along the circumference of the body 11, there are also multiple first blade segments 101, all of which are spaced apart along the circumference of the body 11; there are also multiple second blade segments 102, all of which are spaced apart along the circumference of the body 11; and there are also multiple third blade segments 103, all of which are spaced apart along the circumference of the body 11. Thus, during the use of the blade 100, when one of the blade groups 10 (including the first blade segment 101, the second blade segment 102, and the third blade segment 103) wears out, other blade groups 10 can be switched to continue using the blade 100 by adjusting the installation method of the blade 100. In other words, the blade 100 can be reused multiple times, greatly extending the service life of the blade 100 and saving costs.

[0041] In some implementations, please refer to Figure 2 The included angle c between the second cutting edge segment 102 and the third cutting edge segment 103 is greater than 180 degrees and less than or equal to 270 degrees, while the included angle α between the first cutting edge segment 101 and the second cutting edge segment 102 is greater than 90 degrees and less than 180 degrees. Thus, the non-collinear second cutting edge segment 102 and the third cutting edge segment 103 work together as milling cutting edges to machine a countersunk surface on the part, while the non-collinear first cutting edge segment 101 acts as a chamfering cutting edge to machine a chamfer on the part. This allows the insert 100 to function as both a milling cutter and a chamfering cutter. When designing the cutting edge assembly 10, the diameter of the countersunk surface can be controlled by controlling the length of the second cutting edge segment 102, and the maximum depth of the countersunk surface can be controlled by controlling the length of the third cutting edge segment 103. As an example, the included angle α is 91°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, or 179°. As an example, the included angle β is 91°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, or 179°.

[0042] In some embodiments, multiple blade sets 10 are arranged at intervals around the outer edge of the body 11. In this case, adjacent blade sets 10 are not directly connected, and there is a gap between them. That is, the resulting blade 100 has non-continuous blade edges. It should be noted that the multiple blade sets 10 can be arranged at equal intervals or non-equal intervals around the outer edge of the body 11.

[0043] In some embodiments, the body 11 has a rotationally symmetric structure, and the length of the outer edge of the body 11 corresponding to the space between any pair of adjacent blade sets 10 is equal. Thus, when using the blade 100, different blade sets 10 on the outer edge of the body 11 can be switched to process the parts by rotating the body 11, realizing multiple uses of the blade 100.

[0044] In some implementations, please refer to Figures 1 to 3 In a plurality of blade groups 10, the first end of the first blade group 10 is connected to the second end of the last blade group 10, and in any pair of adjacent blade groups 10, the second end of the preceding blade group 10 is connected to the first end of the following blade group 10; wherein, the first end is the end of the first blade segment 101 away from the second blade segment 102, and the second end is the end of the third blade segment 103 away from the second blade segment 102. In this case, two adjacent blade groups 10 are directly connected together, thereby forming blades that are continuously distributed circumferentially along the outer edge of the body 11, that is, the blades of the resulting blade 100 are continuous.

[0045] In some implementations, please refer to Figure 1 and Figure 2In all blade groups 10, at least one blade group 10 further includes a fourth blade segment 104, which is disposed between the second blade segment 102 and the third blade segment 103 in the same group. That is, in the same blade group 10, the second blade segment 102 and the third blade segment 103 are indirectly connected through the fourth blade segment 104. One end of the fourth blade segment 104 is connected to the end of the second blade segment 102 near the third blade segment 103, and the other end of the fourth blade segment 104 is connected to the end of the third blade segment 103 near the second blade segment 102. The curvature of the fourth blade segment 104 is not zero, meaning the fourth blade segment 104 is not a straight blade segment. As an example, the fourth blade segment 104 extends curvedly from the second blade segment 102 to the third blade segment 103; this curvature can be either towards the interior of the body 11 or towards the exterior of the body 11. The fourth cutting edge segment 104 can serve as a chamfering cutting edge. While the second cutting edge segment 102 machines the bottom wall of the countersunk table on the part, and the third cutting edge segment 103 machines the side wall of the countersunk table on the part, the fourth cutting edge segment 104 can machine a chamfered segment connecting the bottom wall and the side wall of the countersunk table on the part. When the fourth cutting edge segment 104 extends in an arc shape, the chamfered segment is an arc-shaped extended surface.

[0046] In some implementations, please refer to Figure 2 In all blade groups 10, at least one blade group 10 further includes a fifth blade segment 105. One end of the fifth blade segment 105 is connected to the end of the third blade segment 103 in the same group that is away from the second blade segment 102. The fifth blade segment 105 is not collinear with the third blade segment 103 in the same group, and the curvature of the fifth blade segment 105 is zero, that is, the fifth blade segment 105 is a straight blade segment. When the blade group 10 further includes a fifth blade segment 105, the second end of the blade group 10 is the end of the fifth blade segment 105 that is away from the third blade segment 103.

[0047] Please continue reading Figure 2 The fifth cutting edge segment 105 is connected to the third cutting edge segment 103, and the fifth cutting edge segment 105 and the third cutting edge segment 103 are not collinear. When the curvature of the third cutting edge segment 103 is also zero, the included angle b between the fifth cutting edge segment 105 and the third cutting edge segment 103 can be less than 180° or greater than 180°.

[0048] In some implementations, please refer to Figure 2The included angle b between the fifth cutting edge segment 105 and the third cutting edge segment 103 is greater than 90° and less than 180°. In this case, the fifth cutting edge segment 105 can serve as a chamfering cutting edge. After the third cutting edge segment 103 has machined the sidewall of the countersunk edge on the part, the fifth cutting edge segment 105 can continue to machine the sidewall to form a chamfer. As an example, the included angle b is 91°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, or 179°.

[0049] In some implementations, please refer to Figures 1 to 3 The blade 100 has a rotationally symmetrical structure. Thus, by rotating the blade 100, different cutting edge groups 10 on the blade 100 can be switched to machine the part, allowing the blade 100 to be used multiple times. For an example, please refer to... Figure 1 The body 11 is provided with two cutting edge groups 10. The blade 100 has a rotationally symmetrical structure. Thus, every time the blade 100 rotates 180°, another set of cutting edges can be switched to process the part.

[0050] As another example, see Figure 3 The body 11 has four cutting edge groups 10. The blades 100 have a rotationally symmetrical structure. Each rotation of the rotationally symmetrical blade 100 allows switching to another cutting edge group 10 to process the part. For some embodiments, please refer to... Figures 1 to 3 In the same blade 100, the first cutting edge segment 101 of different cutting edge groups 10 are all of the same length, and / or the second cutting edge segment 102 of different cutting edge groups 10 are all of the same length, and / or the third cutting edge segment 103 of different cutting edge groups 10 are all of the same length, and / or the fourth cutting edge segment of different cutting edge groups 10 are all of the same length, and / or the fifth cutting edge segment 105 of different cutting edge groups 10 are all of the same length. The body 11 has a centrally symmetrical structure, and a first mounting through hole 111 is provided at the center point of the body 11. When in use, the blade 100 needs to be fixed to the tool holder 21. The rotation of the tool holder 21 drives the blade 100 to rotate, thereby achieving the machining of the part. When the first mounting through hole 111 is provided at the center of the body 11, the blade 100 can be mounted on the tool holder 21 through the first mounting through hole 111. When the blade 100 has a centrally symmetrical structure, the first mounting through hole 111 is also a rotation hole, thus making it easier to rotate the blade 100 to switch the cutting edge group 10 used for machining.

[0051] In some implementations, please refer to Figures 1 to 3The curvature of the first cutting edge segment 101, the second cutting edge segment 102, and the third cutting edge segment 103 is all zero, meaning that each of these segments is a straight cutting edge. Therefore, the machined surfaces formed on the workpiece by these segments are all planar. Of course, in other embodiments, the insert 100 can also be designed such that at least one of the first cutting edge segment 101, the second cutting edge segment 102, and the third cutting edge segment 103 has a non-zero curvature.

[0052] In some implementations, please refer to Figure 1 and Figure 2 In the blade 100, there are two blade groups 10, and the included angle d between the connecting blade segments of two adjacent blade groups 10 is between 300 degrees and 345 degrees. For example, please refer to... Figure 1 The blade assembly 10 includes a first blade segment 101, a second blade segment 102, a fourth blade segment 104, and a third blade segment 103 connected sequentially. The blade segments connecting adjacent blade assemblies 10 are the third blade segment 103 and the first blade segment 101, respectively; that is, the first blade segment 101 of one blade assembly 10 is connected to the third blade segment 103 of another blade assembly 10. As another example, please refer to... Figure 2 The blade assembly 10 includes a first blade segment 101, a second blade segment 102, a fourth blade segment 104, a third blade segment 103, and a fifth blade segment 105 connected in sequence. The blade segments connected between two adjacent blade assemblies 10 are the fifth blade segment 105 and the first blade segment 101, respectively. That is, the first blade segment 101 of one blade assembly 10 is connected to the fifth blade segment 105 of another blade assembly 10. The included angle d between the connected blade segments of two adjacent blade assemblies 10 is the included angle between the connected first blade segment 101 and the fifth blade segment 105. By controlling the included angle d to be between 300 degrees and 345 degrees, a sharp corner can be formed on the cutting tool 100. The first cutting edge segment 101 and the fifth cutting edge segment 105 are formed as the edges of the sharp corner. The sharp corner is convenient to abut against the drill bit 22 when machining the part, so that one of the first cutting edge segment 101 and the fifth cutting edge segment 105 can drill a hole in the part by the drill bit 22 for further processing, such as chamfering.

[0053] It should be noted that the included angle between two different blade segments in this application refers to the angle experienced by one blade segment when it rotates to coincide with the other blade segment on the side away from the main body. For an example, please refer to... Figure 2The angle between the first cutting edge segment 101 and the second cutting edge segment 102 is a, the angle between the second cutting edge segment 102 and the third cutting edge segment 103 is c, the angle between the fifth cutting edge segment 105 and the third cutting edge segment 103 is b, and the angle between the connected first cutting edge segment 101 and the fifth cutting edge segment 105 is d.

[0054] In some implementations, please refer to Figure 1 and Figure 2 The second cutting edge section 102 and the third cutting edge section 103 are perpendicular to each other. Thus, the countersunk holes machined on the part by the second cutting edge section 102 and the third cutting edge section 103 are straight holes, and the side walls and bottom walls of the countersunk holes are also perpendicular to each other.

[0055] Secondly, please see Figure 4 This application also provides a cutting tool structure 200, which includes a shank 21, a drill bit 22, and the aforementioned cutting blade 100. The drill bit 22 is disposed on the shank 21. The cutting blade 100 is detachably disposed on the shank 21 and located on one side of the drill bit 22, with the circumference of the cutting blade 100 corresponding to the side of the drill bit 22, and one of the cutting edge groups 10 protruding from the edge of the shank 21, with the first cutting edge segment 101 of the cutting edge group 10 abutting against the side of the drill bit at the end away from the second cutting edge segment 102.

[0056] Combination Figures 6 to 7 As can be seen, both the drill bit 22 and the cutting insert 100 are mounted on the tool holder 21. When the tool holder 21 is rotated, the drill bit 22 and the cutting insert 100 rotate synchronously. The tool structure 200 is advanced in the direction close to part A. The drill bit 22 contacts part A first and drills a hole in part A. As the tool structure 200 continues to advance, the cutting insert 100 also begins to contact part A. The cutting edge assembly 10, which protrudes from the edge of the tool holder 21, is exposed outside the tool holder 21. This exposed cutting edge assembly 10 can further process part A. As an example, the first cutting edge segment 101 of the exposed cutting edge assembly 10 is chamfered on part A, and the second cutting edge segment 102 and the third cutting edge segment 103 of the exposed cutting edge assembly 10 are countersunk on part A. Since one end of the first cutting edge segment 101 with the chamfer is against the side of the drill bit 22, the chamfer is formed as a transition section from the countersunk to the drill hole. After the tool structure 200 finishes machining on part A, it is pulled out in a direction away from part A, so that the tool structure 200 is separated from part A.

[0057] Since the blade 100 is detachably mounted on the tool holder 21, different cutting edge groups 10 on the blade 100 can be switched to process the parts by disassembling and reassembling the blade 100 and adjusting the assembly angle.

[0058] In some implementations, please refer to Figure 4The tool holder 21 has a second mounting through hole 211 extending in a first direction and a mounting surface 212 extending in the first direction at one end. One end of the drill bit 22 extends into the second mounting through hole 211, and the cutting tool 100 is attached to the mounting surface 212 on one side surface in its thickness direction. Optionally, the first direction is the direction in which the axis of the tool holder 21 extends. One end of the drill bit 22 extends into the second mounting through hole 211 and is connected and fixed by cooperating with the hole wall of the second mounting through hole 211. The other end of the drill bit 22 is exposed outside one end of the tool holder 21, and the exposed part of the drill bit 22 can be used to drill holes in the part.

[0059] As an example, one end of the drill bit 22 has a non-circular cross-section, such as a rectangle. One end of the drill bit 22 is inserted into and adapted to the second mounting through hole 211, thus enabling torque transmission.

[0060] As an example, the blade 100 has a first mounting through hole 111, the blade 100 is disposed on the mounting surface 212, and fasteners (such as screws) connect and fix the blade 100 to the tool holder 21 through the first mounting through hole 111.

[0061] Thirdly, please see Figure 5 This application embodiment also provides a processing device 300, which includes a drive device 31 and the above-mentioned tool structure 200. The drive device 31 is connected to the tool holder 21 and is used to drive the tool holder 21 to rotate.

[0062] The processing equipment 300 includes the aforementioned tool structure 200, and therefore the processing equipment 300 has all the beneficial effects of the aforementioned tool structure 200, which will not be elaborated here.

[0063] In some embodiments, the drive device 31 includes a motor that drives the tool holder 21 to rotate, thereby causing the drill bit 22 and the cutting tool 100 to process the part under the drive of the tool holder 21.

[0064] In some implementations, the processing equipment 300 is a CNC machine tool.

[0065] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0066] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0067] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0068] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A blade, characterized in that The blade includes a body and multiple blade sets; The plurality of blade groups are arranged sequentially around the body along the circumference of the body and connected to the outer edge of the body. Each blade group includes a first blade segment, a second blade segment and a third blade segment connected end to end in sequence. Wherein, any two of the first cutting edge segment, the second cutting edge segment, and the third cutting edge segment are not collinear.

2. The blade of claim 1, wherein In the plurality of blade groups, the first end of the first blade group is connected to the second end of the last blade group, and in any pair of adjacent blade groups, the second end of the preceding blade group is connected to the first end of the following blade group. Wherein, the first end is the end of the first blade segment that is away from the second blade segment, and the second end is the end of the third blade segment that is away from the second blade segment.

3. The blade of claim 1, wherein The plurality of blade groups are arranged at intervals around the outer edge of the body.

4. The blade of claim 3, wherein The body has a rotationally symmetric structure, and the length of the outer edge of the body corresponding to the space between any pair of adjacent blade sets is equal.

5. The blade of claim 2, wherein At least one of the blade groups further includes a fourth blade segment disposed between the second blade segment and the third blade segment in the same group, the curvature of the fourth blade segment being non-zero; one end of the fourth blade segment is connected to the end of the second blade segment near the third blade segment, and the other end of the fourth blade segment is connected to the end of the third blade segment near the second blade segment.

6. The blade of claim 5, wherein, At least one of the blade groups further includes a fifth blade segment that is not collinear with the third blade segment in the same group, the curvature of the fifth blade segment is zero, and one end of the fifth blade segment is connected to the end of the third blade segment in the same group that is away from the second blade segment; Specifically, for a blade assembly including the fifth blade segment, the second end is the end of the fifth blade segment that is furthest from the third blade segment.

7. The blade of claim 6, wherein The lengths of the first cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the second cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the third cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the fourth cutting edge segments of different cutting edge groups are all the same, and / or the lengths of the fifth cutting edge segments of different cutting edge groups are all the same. The body is a centrally symmetrical structure, and a first mounting through hole is provided at the center point of the body.

8. The blade of claim 2, wherein The curvature of the first cutting edge segment, the second cutting edge segment, and the third cutting edge segment is all zero.

9. The blade of claim 2, wherein, The number of blade groups is two, and the included angle between the blade segments connected to the adjacent two blade groups is between 300 degrees and 345 degrees.

10. The insert according to any one of claims 1 to 9, characterized in that The included angle between the second and third cutting edge segments is greater than 180 degrees and less than or equal to 270 degrees, and the included angle between the first and second cutting edge segments is greater than 90 degrees and less than 180 degrees.

11. A tool structure, characterized by include: Handle; The drill bit is mounted on the tool holder; as well as The blade as claimed in any one of claims 1 to 10, wherein the blade is detachably disposed on the shank and located on one side of the drill bit, the circumferential surface of the blade corresponds to the side surface of the drill bit, and one of the cutting edge groups protrudes from the edge of the shank and the first cutting edge segment of the cutting edge group abuts against the side surface of the drill bit at one end away from the second cutting edge segment.

12. The tool structure according to claim 11, characterized in that The tool holder has a second mounting through hole extending in a first direction and a mounting surface extending in the first direction at one end. One end of the drill bit extends into the second mounting through hole, and the cutting blade is attached to the mounting surface on one side of its thickness direction.

13. A processing apparatus characterized by comprising: It includes a drive unit and a tool structure as described in claim 11 or 12, wherein the drive unit is connected to the tool holder and is used to drive the tool holder to rotate.

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