cutter

Abstract

The utility model discloses a tool, tool includes: clamping piece, cutting piece, abutting piece, first fastener and second fastener. Clamping piece is equipped with clamping groove, and first fastening hole and second fastening hole are equipped in the clamping groove, cutting piece is arranged in the clamping groove, and is equipped with first mounting hole, abutting piece is arranged in the clamping groove and is in abutment with cutting piece, and is equipped with second mounting hole, first fastener is threaded in first mounting hole and is connected with first fastening hole cooperation, second fastener is threaded in second mounting hole and is connected with second fastening hole cooperation. The tool of the utility model can improve the stability of cutting piece mounting and holding, bears greater cutting force, and further improves the reliability of tool.

Description

Technical Field

[0001] This utility model relates to the field of tool clamping technology, and in particular to a tool. Background Technology

[0002] In the automotive industry, a turbocharging system is a device that uses the residual energy of the exhaust gas of an internal combustion engine to increase the intake air volume of the internal combustion engine. The turbine housing is an important component of the turbocharging system. In order to withstand high temperatures and deformation, the turbine housing is usually made of high-temperature resistant alloy material, which has the characteristics of high temperature resistance, high strength and strong corrosion resistance.

[0003] In the machining of turbine housings, the cutting tool generates a cutting force of nearly 2500N. Therefore, the clamping stability of the cutting tool is the primary key to successful machining. Current cutting tool clamping methods use through-hole type inserts, with the inserts positioned by V-shaped clamping plates. When the cutting tool cuts the workpiece, the inserts are prone to loosening and uneven force distribution, resulting in poor clamping stability. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a cutting tool that can improve the stability of clamping the workpiece, withstand greater cutting forces, and thus improve the reliability of the cutting tool.

[0005] The cutting tool according to an embodiment of the present utility model includes: a clamping member having a clamping groove, the clamping groove having a first fastening hole and a second fastening hole; a cutting member having a cutting member disposed in the clamping groove and having a first mounting hole; a clamping member having a clamping member disposed in the clamping groove and abutting against the cutting member, and having a second mounting hole; a first fastener having a first fastener passing through the first mounting hole and engaging with the first fastening hole; and a second fastener having a second fastener passing through the second mounting hole and engaging with the second fastening hole.

[0006] According to the present invention, the cutting tool can fix the cutting part in the clamping member through the synergistic action of the first fastener, the clamping groove and the abutment member, limit the cutting part, avoid vibration and displacement of the cutting part during the cutting process, improve the stability of the cutting part during the cutting process, withstand greater cutting force, and thus improve the reliability of the cutting tool.

[0007] In some embodiments of this utility model, the clamping groove includes a first groove, a second groove, and a third groove. The first groove extends along a first direction and has an opening at one end of the clamping member. The second groove is located at the end of the first groove away from the opening. The third groove is located at one end of the first groove in a second direction and communicates with the first groove. The second direction, the first direction, and the axial direction of the first fastening hole are perpendicular to each other. The cutting member passes through the opening and is partially located in the first groove. A gap is formed between the cutting member and the second groove. The abutting member is located in the third groove.

[0008] In some embodiments of this utility model, the second groove is an arc groove and is provided at both ends of the first groove in the second direction. The first groove includes a supporting groove surface, a first pressing surface, a second pressing surface, and a third pressing surface. The first pressing surface and the second pressing surface are connected to both ends of the supporting groove surface in the second direction. The first pressing surface is closer to the abutting member relative to the second pressing surface. The third pressing surface is connected to the end of the supporting groove surface away from the opening. A second groove is provided between the third pressing surface and the first pressing surface. Another second groove is provided between the third pressing surface and the second pressing surface. The supporting groove surface, the second pressing surface, and the third pressing surface all abut against the cutting member.

[0009] In some embodiments of this utility model, the axes of the first fastening hole and the second fastening hole are set at an angle, the abutting member has a pressing surface close to the cutting member, and the distance between the pressing surface and the central axis of the second fastening hole gradually increases in the direction from the inside to the outside of the third groove; the cutting member has a pressure-receiving surface that abuts against the pressing surface, and the angle between the pressure-receiving surface and the pressing surface is θ, wherein 1 degree ≤ θ ≤ 3 degrees.

[0010] In some embodiments of this utility model, the cutting member includes a main body and a cutting part. The main body is provided with the first mounting hole. The cutting part is located at both ends of the main body in a first direction and extends relative to the main body toward the side away from the clamping groove. The cutting part includes a first surface, a second surface, a third surface, a fourth surface, and a fifth surface. The first surface and the second surface are located at both ends of the cutting part in a second direction. The third surface and the fourth surface are located at both ends of the cutting part in the first direction. The fourth surface is closer to the first mounting hole relative to the third surface. The fifth surface connects the first surface, the second surface, the third surface, and the fourth surface and is away from the main body. A first secondary cutting edge is formed between the third surface and the first surface. A second secondary cutting edge is formed between the fourth surface and the first surface. A main cutting edge is formed between the fifth surface and the first surface. The second direction, the first direction, and the axial direction of the first mounting hole are perpendicular to each other.

[0011] In some embodiments of this utility model, the third surface is inclined relative to the first surface on the side closer to the first mounting hole, and forms the first plumb surface that passes through the first secondary cutting edge. The included angle between the third surface and the first plumb surface is α1, where 3 degrees ≤ α1 ≤ 6 degrees.

[0012] In some embodiments of this utility model, the fourth surface is inclined relative to the first surface on the side away from the first mounting hole, and is a second plumb surface that passes through the second secondary cutting edge. The included angle between the fourth surface and the second plumb surface is α2, where 3 degrees ≤ α2 ≤ 6 degrees.

[0013] In some embodiments of this utility model, the main cutting edge includes a first cutting edge segment, a second cutting edge segment, and a third cutting edge segment connected in sequence and in an arc shape. The first cutting edge segment is connected to the first secondary cutting edge, and the third cutting edge segment is connected to the second secondary cutting edge. The radius of curvature of the first cutting edge segment is R1, the radius of curvature of the second cutting edge segment is R2, and the radius of curvature of the third cutting edge segment is R3, wherein R1 > R2 ≥ R3.

[0014] In some embodiments of this utility model, the fifth surface includes a first surface segment, a second surface segment, and a third surface segment that are sequentially connected and arc-shaped. A first cutting edge is formed between the first surface segment and the first surface, a second cutting edge is formed between the second surface segment and the first surface, and a third cutting edge is formed between the third surface segment and the first surface. A third plumb surface is formed through the first cutting edge, and the included angle between the first surface segment and the third plumb surface is β1. A fourth plumb surface is formed through the second cutting edge, and the included angle between the second surface segment and the fourth plumb surface is β2. A fifth plumb surface is formed through the third cutting edge, and the included angle between the third surface segment and the fifth plumb surface is β3. Wherein, β1≥β2≥β3.

[0015] In some embodiments of this utility model, the included angle between the first secondary cutting edge and the second secondary cutting edge is β4, wherein 10 degrees ≤ β4 ≤ 30 degrees.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 Exploded views of the tool structure provided in some embodiments of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the cutting tool portion provided in some embodiments of the present utility model;

[0020] Figure 3 Schematic diagrams of the cutting tool provided in some embodiments of this utility model;

[0021] Figure 4 A three-dimensional structural schematic diagram of the clamping member provided in some embodiments of this utility model;

[0022] Figure 5 for Figure 4 A magnified view of a portion of point I;

[0023] Figure 6 for Figure 3 A sectional view taken along direction AA;

[0024] Figure 7 for Figure 6 Enlarged view of section II;

[0025] Figure 8 Schematic diagram of the three-dimensional structure of the cutting tool provided in some embodiments of this utility model Figure 1 ;

[0026] Figure 9 Schematic diagram of the three-dimensional structure of the cutting tool provided in some embodiments of this utility model Figure 2 ;

[0027] Figure 10 Schematic diagrams of the cutting tool provided in some embodiments of this utility model;

[0028] Figure 11 for Figure 10 A sectional view taken along the BB direction;

[0029] Figure 12 for Figure 10 A sectional view taken along the CC direction;

[0030] Figure 13 for Figure 8 Enlarged view of section III;

[0031] Figure 14 for Figure 9 A magnified view of section VI.

[0032] Figure label:

[0033] 100. Knives;

[0034] 10. Clamping components;

[0035] 10a, clamping groove; 101a, first groove; 1011a, supporting groove surface; 1011b, first pressing surface; 1011c, second pressing surface; 1011d, third pressing surface; 1011e, opening; 101b, second groove; 101c, third groove; 10b, first fastening hole; 10c, second fastening hole;

[0036] 20. Cutting part; 20a. Pressure-bearing surface; 21. Main body; 21a. First mounting hole; 22. Cutting part; 22a. First face; 22b. Second face; 22c. Third face; 22d. Fourth face; 22e. Fifth face; 2201. First face section; 2202. Second face section; 2203. Third face section; 221. First secondary cutting edge; 221a. First vertical hammer face; 222. Second secondary cutting edge; 222a. Second vertical hammer face; 223. Main cutting edge; 2231. First cutting edge section; 2231a. Third vertical hammer face; 2232. Second cutting edge section; 2232a. Fourth vertical hammer face; 2233. Third cutting edge section; 2233a. Fifth vertical hammer face;

[0037] 30. Clamping element; 30a. Second mounting hole; 30b. Pressing surface;

[0038] 40. First fastener;

[0039] 50. Second fastener. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, features specified as "first" or "second" may explicitly or implicitly include one or more of the same feature, used to distinguish and describe features, without any order or distinction of importance.

[0043] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] The following is for reference. Figures 1-14 The present invention describes the cutting tool 100 of an embodiment of the present invention.

[0046] like Figures 1 to 3 As shown, the cutting tool 100 of this utility model embodiment includes: a clamping member 10, a cutting member 20, a clamping member 30, a first fastener 40, and a second fastener 50. The clamping member 10 is provided with a clamping groove 10a, and the clamping groove 10a is provided with a first fastening hole 10b and a second fastening hole 10c; the cutting member 20 is disposed in the clamping groove 10a and is provided with a first mounting hole 21a; the clamping member 30 is disposed in the clamping groove 10a and abuts against the cutting member 20, and is provided with a second mounting hole 30a; the first fastener 40 passes through the first mounting hole 21a and is engaged with the first fastening hole 10b; the second fastener 50 passes through the second mounting hole 30a and is engaged with the second fastening hole 10c.

[0047] The clamping component 10 can refer to a part used to clamp the cutting workpiece 20, and can be, but is not limited to, alloy tool steel, high-speed steel, cemented carbide, structural steel, stainless steel, titanium alloy, and powder metallurgy materials, etc. The clamping component 10 is provided with a clamping groove 10a, through which the cutting workpiece 20 can be fixed. The clamping groove 10a is provided with a first fastening hole 10b and a second fastening hole 10c, which can be, but is not limited to, threaded holes, smooth holes (for mating with pins or bolts), and stepped holes, etc.

[0048] The cutting element 20 can refer to a component used for cutting the workpiece, and can be fixed to the clamping element 10 through the first mounting hole 21a. The material of the cutting element 20 can be, but is not limited to, high-speed steel, cemented carbide, ceramics, cubic boron nitride, and polycrystalline diamond, etc. As an example, the cutting element 20 can refer to a cutting tool.

[0049] The clamping member 30 can refer to a component used to fix the cutting part 20, and can be, but is not limited to, a wedge block and a pressure plate, etc. The clamping member 30 is provided with a second mounting hole 30a, through which it can be fixed to the clamping member 10.

[0050] The first fastener 40 can refer to a component disposed on the first mounting hole 21a and the first fastening hole 10b, and can be used to connect and fix the cutting member 20 and the clamping member 10. The first fastener 40 can be, but is not limited to, bolts, screws, and pins, etc. The second fastener 50 can refer to a component disposed on the second mounting hole 30a and the second fastening hole 10c, and can be used to connect and fix the abutment member 30 and the clamping member 10. The second fastener 50 can be, but is not limited to, bolts, screws, and pins, etc.

[0051] It is understandable that the first mounting hole 21a and the first fastening hole 10b are similar in shape and size, and the second mounting hole 30a and the second fastening hole 10c are similar in shape and size.

[0052] In the above technical solution, the clamping member 10 serves as the main frame and is provided with a clamping groove 10a. The cutting part 20 is disposed within the clamping groove 10a, which provides basic positioning and limiting for the cutting part 20. The first fastener 40 connects and fixes the cutting part 20 and the clamping member 10, further positioning and limiting the cutting part 20. The second fastener 50 connects and fixes the abutting member 30 and the clamping member 10, so that the abutting member 30 is within the clamping groove 10a and abuts against the cutting part 20, further limiting the cutting part 20 and enhancing the limiting effect. The cutting part 20 is fixed in the clamping member 10 through the interaction of the first fastener 40, the clamping groove 10a, and the abutting member 30, which can completely limit the cutting part 20, prevent the cutting part 20 from loosening during workpiece processing, and improve the stability of the cutting part 20.

[0053] According to the embodiment of the present utility model, the cutting tool 100 can fix the cutting part 20 in the clamping member 10 through the synergistic action of the first fastener 40, the clamping groove 10a and the abutment member 30, thereby limiting the cutting part 20, avoiding vibration and displacement of the cutting part 20 during the cutting process, improving the stability of the cutting part 20 during the cutting process, and enabling it to withstand greater cutting force, thereby improving the reliability of the cutting tool 100.

[0054] In some embodiments of this utility model, reference is made to Figure 2 , Figure 4 and Figure 5The clamping groove 10a includes a first groove 101a, a second groove 101b, and a third groove 101c. The first groove 101a extends along a first direction and has an opening 1011e at one end of the clamping member 10. The second groove 101b is located at the end of the first groove 101a away from the opening 1011e. The third groove 101c is located at one end of the first groove 101a in a second direction and communicates with the first groove 101a. The second direction, the first direction, and the axial direction of the first fastening hole 10b are perpendicular to each other. The cutting member 20 passes through the opening 1011e and is partially located in the first groove 101a. A gap is formed between the cutting member 20 and the second groove 101b. The abutting member 30 is located in the third groove 101c.

[0055] For example, "first direction" can be referred to Figure 4 The left and right directions. The "second direction" can be referenced. Figure 4 The vertical direction. The "axial direction of the first fastening hole 10b" can be referenced. Figure 4 The front and back directions.

[0056] The contours of the first groove 101a and the cutting part 20 can be similar, and the contours of the third groove 101c and the clamping part 30 can be similar. The shape of the second groove 101b can be, but is not limited to, arc, rectangle, and irregular shape, etc.

[0057] It is understood that the lengths of the first groove 101a, the second groove 101b, and the third groove 101c in the axial direction of the first fastening hole 10b are at least greater than most of the length of the cutting part 20 in the axial direction of the first fastening hole 10b.

[0058] In the above technical solution, by extending the first groove 101a along the first direction and providing an opening 1011e at one end of the clamping member 10, the cutting part 20 can be conveniently installed along the first direction. Simultaneously, a gap is formed between the cutting part 20 and the second groove 101b, which avoids the cutting part 20 (e.g., avoids the cutting edge of the cutting part 20), preventing damage to the cutting part 20 during installation. The design of the third groove 101c being perpendicularly connected to the first groove 101a allows the clamping member 30 to apply a uniform clamping force to the cutting part 20 from the second direction, enhancing the limiting effect of the cutting part 20. The mutually perpendicular arrangement of the first groove 101a, the second groove 101b, and the third groove 101c to the first direction, the second direction, and the axis of the fastening hole can construct a three-dimensional spatial fixing system, improving the vibration resistance and stability of the tool 100 under complex cutting forces, and further enhancing the reliability of the tool 100.

[0059] In some embodiments of this utility model, reference is made to Figures 3 to 5The second groove 101b is an arc groove and is located at both ends of the first groove 101a in the second direction. The first groove 101a includes a supporting groove surface 1011a, a first pressing surface 1011b, a second pressing surface 1011c, and a third pressing surface 1011d. The first pressing surface 1011b and the second pressing surface 1011c are connected to both ends of the supporting groove surface 1011a in the second direction. The first pressing surface 1011b is closer to the abutting member 30 than the second pressing surface 1011c. The third pressing surface 1011d is connected to the end of the supporting groove surface 1011a away from the opening 1011e. A second groove 101b is provided between the third pressing surface 1011d and the first pressing surface 1011b. Another second groove 101b is provided between the third pressing surface 1011d and the second pressing surface 1011c. The supporting groove surface 1011a, the second pressing surface 1011c, and the third pressing surface 1011d all abut against the cutting member 20.

[0060] The shapes of the second pressing surface 1011c and the third pressing surface 1011d can be, but are not limited to, planes, trapezoids, and arcs, etc. For example, refer to Figure 5 The second pressing surface 1011c and the third pressing surface 1011d can be trapezoidal in shape to avoid the cutting part 20.

[0061] In the above technical solution, the second groove 101b is an arc groove, which facilitates processing and saves costs. Simultaneously, the second groove 101b is located at both ends of the first groove 101a in the second direction, preventing the cutting part 20 from contacting the second groove 101b and improving the reliability of the cutting part 20. The supporting groove surface 1011a, the second pressing surface 1011c, and the third pressing surface 1011d all abut against the cutting part 20. The supporting groove surface 1011a can limit and support the cutting part 20 in the axial direction of the first fastening hole 10b; the second pressing surface 1011c can limit the cutting part 20 in the second direction; and the third pressing surface 1011d can further limit the cutting part 20 in both the first and second directions, improving the limiting effect of the cutting part 20 and further enhancing its stability during the cutting process.

[0062] In some embodiments of this utility model, reference is made to Figure 6 and Figure 7 The first fastening hole 10b and the second fastening hole 10c are set at an angle to each other. The clamping member 30 has a pressing surface 30b close to the cutting member 20. In the direction from the inside to the outside of the third groove 101c, the distance between the pressing surface 30b and the central axis of the second fastening hole 10c gradually increases. The cutting member 20 has a pressure-bearing surface 20a that abuts against the pressing surface 30b. The angle between the pressure-bearing surface 20a and the pressing surface 30b is θ, where 1 degree ≤ θ ≤ 3 degrees.

[0063] The pressure surface 30b can be, but is not limited to, curved surfaces and inclined surfaces, etc.

[0064] "In the direction from the inside out in the third slot 101c", you can refer to Figure 6 The front and back directions.

[0065] θ can be, but is not limited to, 1 degree, 2 degrees, 3 degrees, etc.

[0066] In the above technical solution, the included angle between the pressure surface 20a and the pressure surface 30b is θ, which allows the clamping member 30 to apply a certain pressure to the cutting member 20, thereby pressing the cutting member 20 and fixing it more firmly in the clamping groove 10a. This enhances the limiting effect of the cutting member 20, improves the stability of the cutting process of the cutting member 20, and further improves the reliability of the tool 100.

[0067] In some embodiments of this utility model, reference is made to Figures 8 to 10 The cutting part 20 includes a main body 21 and a cutting part 22. The main body 21 is provided with a first mounting hole 21a. The cutting part 22 is provided at both ends of the main body 21 in a first direction and extends towards the side opposite to the clamping groove 10a relative to the main body 21. The cutting part 22 includes a first surface 22a, a second surface 22b, a third surface 22c, a fourth surface 22d, and a fifth surface 22e. The first surface 22a and the second surface 22b are located at both ends of the cutting part 22 in a second direction, and the third surface 22c and the fourth surface 22d are located at both ends of the cutting part 22 in a first direction. The fourth face 22d is close to the first mounting hole 21a relative to the third face 22c. The fifth face 22e connects the first face 22a, the second face 22b, the third face 22c and the fourth face 22d, and is away from the main body 21. A first secondary cutting edge 221 is formed between the third face 22c and the first face 22a. A second secondary cutting edge 222 is formed between the fourth face 22d and the first face 22a. A main cutting edge 223 is formed between the fifth face 22e and the first face 22a. The second direction, the first direction and the axial direction of the first mounting hole 21a are perpendicular to each other.

[0068] It is understood that the cutting part 20 includes two cutting portions 22, which are respectively provided at both ends of the main body 21 in the first direction. The two cutting portions 22 may be rotationally symmetrical about the axial direction of the first mounting hole 21a, or they may not be rotationally symmetrical about the axial direction of the first mounting hole 21a. For example, the two cutting portions 22 may be provided at both ends of the main body 21 in the first direction, and the dimensions of the two cutting portions 22 may not be equal.

[0069] In the above technical solution, the cooperation of the first secondary cutting edge 221, the second secondary cutting edge 222 and the main cutting edge 223 forms a three-dimensional cutting network, which can process more complex workpieces, improve the versatility of the cutting part 20, and further improve the reliability of the tool 100.

[0070] In some embodiments of this utility model, reference is made to Figure 10 and Figure 11 The third surface 22c is inclined relative to the first surface 22a towards the side closer to the first mounting hole 21a. The first vertical surface 221a, which has passed the first secondary cutting edge 221, is α1. The included angle between the third surface 22c and the first vertical surface 221a is α1, where 3 degrees ≤ α1 ≤ 6 degrees.

[0071] α1 can be, but is not limited to, 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, etc.

[0072] In the above technical solution, the included angle between the third surface 22c and the first vertical hammer surface 221a is α1, which can prevent the third surface 22c from contacting the workpiece and affecting the workpiece machining when the cutting part 20 is machining the workpiece, thereby improving the reliability of the tool 100.

[0073] In some embodiments of this utility model, reference is made to Figure 10 and Figure 12 The fourth surface 22d is inclined relative to the first surface 22a and is located away from the first mounting hole 21a. The second vertical surface 222a, which has been the second secondary cutting edge 222, is α2. The included angle between the fourth surface 22d and the second vertical surface 222a is α2, where 3 degrees ≤ α2 ≤ 6 degrees.

[0074] α2 can be, but is not limited to, 1 degree, 2 degrees, 3 degrees, 4 degrees, 5 degrees, 6 degrees, etc.

[0075] In the above technical solution, the included angle between the fourth surface 22d and the second plumb surface 222a is α2, which can prevent the fourth surface 22d from contacting the workpiece and affecting the workpiece machining when the cutting part 20 is machining the workpiece, and further improve the reliability of the tool 100.

[0076] In some embodiments of this utility model, reference is made to Figure 8 and Figure 9 The fourth face 22d is perpendicular to the cutting part 22. In the above technical solution, the fourth face 22d being perpendicular to the cutting part 22 allows the cutting part 20 to withstand greater cutting force, ensuring the strength of the cutting part 20 and improving the reliability of the tool 100.

[0077] In some embodiments of this utility model, reference is made to Figure 8 , Figure 13 and Figure 14 The main cutting edge 223 includes a first cutting edge 2231, a second cutting edge 2232, and a third cutting edge 2233 connected in sequence and in an arc shape. The first cutting edge 2231 is connected to the first secondary cutting edge 221, and the third cutting edge 2233 is connected to the second secondary cutting edge 222. The radius of curvature of the first cutting edge 2231 is R1, the radius of curvature of the second cutting edge 2232 is R2, and the radius of curvature of the third cutting edge 2233 is R3, wherein R1 > R2 ≥ R3.

[0078] In the above technical solution, R1>R2≥R3, the workpiece can be cut sequentially by the first cutting edge 2231, the second cutting edge 2232 and the third cutting edge 2233, which reduces the burrs on the workpiece, increases the surface finish of the workpiece, improves the reliability of the workpiece, and thus improves the reliability of the tool 100.

[0079] In some embodiments of this utility model, reference is made to Figure 9 and Figure 14 The fifth surface 22e includes a first surface segment 2201, a second surface segment 2202, and a third surface segment 2203 that are sequentially connected and arc-shaped. A first cutting edge 2231 is formed between the first surface segment 2201 and the first surface 22a, a second cutting edge 2232 is formed between the second surface segment 2202 and the first surface 22a, and a third cutting edge 2233 is formed between the third surface segment 2203 and the first surface 22a. The first cutting edge 2231 is then used to cut the surface. The three-pronged hammer face 2231a has an angle of β1 between the first face segment 2201 and the third hammer face 2231a; the fourth hammer face 2232a, which has passed through the second cutting segment 2232, has an angle of β2 between the second face segment 2202 and the fourth hammer face 2232a; the fifth hammer face 2233a, which has passed through the third cutting segment 2233, has an angle of β3 between the third face segment 2203 and the fifth hammer face 2233a; wherein, β1≥β2≥β3.

[0080] In the above technical solution, β1≥β2≥β3 can reduce the friction between the first cutting edge 2231, the second cutting edge 2232 and the third cutting edge 2233 and the workpiece, increase the life of the cutting part 20, improve the reliability of the cutting part 20, and further improve the reliability of the tool 100.

[0081] In some embodiments of this utility model, reference is made to Figure 10 The included angle between the first cutting edge 221 and the second cutting edge 222 is β4, where 10 degrees ≤ β4 ≤ 30 degrees.

[0082] β4 can be, but is not limited to, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, etc.

[0083] In the above technical solution, when machining workpieces with complex shapes, the space of the cutting tool 100 is limited. The included angle between the first set of cutting edges 221 and the second set of cutting edges 222 is β4. The first set of cutting edges 221 and the second set of cutting edges 222 can form a "V" shape, so that the tool 100 can machine workpieces with complex shapes and improve the reliability of the tool 100.

[0084] The following is combined Figures 1 to 14 This describes a specific embodiment of the cutting tool 100 of this utility model.

[0085] The cutting tool 100 includes: a clamping member 10, a cutting member 20, a clamping member 30, a first fastener 40, and a second fastener 50.

[0086] The clamping member 10 is provided with a clamping groove 10a, and a first fastening hole 10b and a second fastening hole 10c are provided in the clamping groove 10a. The first fastening hole 10b and the second fastening hole 10c are threaded holes. The clamping groove 10a includes a first groove 101a, a second groove 101b and a third groove 101c. The first groove 101a extends along a first direction and has an opening 1011e at one end of the clamping member 10. The second groove 101b is located at the end of the first groove 101a away from the opening 1011e. The third groove 101c is located at the end of the first groove 101a in a second direction and communicates with the first groove 101a. The second direction, the first direction and the axial direction of the first fastening hole 10b are perpendicular to each other.

[0087] The second groove 101b is an arc groove and is located at both ends of the first groove 101a in the second direction. The first groove 101a includes a supporting groove surface 1011a, a first pressing surface 1011b, a second pressing surface 1011c, and a third pressing surface 1011d. The first pressing surface 1011b and the second pressing surface 1011c are connected to both ends of the supporting groove surface 1011a in the second direction. The first pressing surface 1011b is closer to the abutting member 30 than the second pressing surface 1011c. The third pressing surface 1011d is connected to the end of the supporting groove surface 1011a away from the opening 1011e. A second groove 101b is provided between the third pressing surface 1011d and the first pressing surface 1011b. Another second groove 101b is provided between the third pressing surface 1011d and the second pressing surface 1011c. The supporting groove surface 1011a, the second pressing surface 1011c, and the third pressing surface 1011d all abut against the cutting member 20.

[0088] The cutting part 20 is disposed in the clamping groove 10a and has a first mounting hole 21a, which is a through hole. The cutting part 20 includes a main body 21 and a cutting part 22. The main body 21 has the first mounting hole 21a, and the cutting part 22 is disposed at both ends of the main body 21 in a first direction and extends toward the side opposite to the clamping groove 10a relative to the main body 21.

[0089] The cutting part 22 includes a first surface 22a, a second surface 22b, a third surface 22c, a fourth surface 22d, and a fifth surface 22e. The first surface 22a and the second surface 22b are located at both ends of the cutting part 22 in a second direction. The third surface 22c and the fourth surface 22d are located at both ends of the cutting part 22 in a first direction. The fourth surface 22d is closer to the first mounting hole 21a than the third surface 22c. The fifth surface 22e connects the first surface 22a, the second surface 22b, the third surface 22c, and the fourth surface 22d, and is away from the main body 21. A first secondary cutting edge 221 is formed between the third surface 22c and the first surface 22a. A second secondary cutting edge 222 is formed between the fourth surface 22d and the first surface 22a. A main cutting edge 223 is formed between the fifth surface 22e and the first surface 22a. The second direction, the first direction, and the axial direction of the first mounting hole 21a are perpendicular to each other.

[0090] The third surface 22c is inclined relative to the first surface 22a towards the side closer to the first mounting hole 21a.

[0091] The fourth surface 22d is inclined relative to the first surface 22a on the side away from the first mounting hole 21a.

[0092] The fifth surface 22e includes a first surface segment 2201, a second surface segment 2202, and a third surface segment 2203 that are sequentially connected and arc-shaped. A first cutting edge 2231 is formed between the first surface segment 2201 and the first surface 22a, a second cutting edge 2232 is formed between the second surface segment 2202 and the first surface 22a, and a third cutting edge 2233 is formed between the third surface segment 2203 and the first surface 22a. The fifth surface 22e is formed by the first cutting edge 2231. The three-pronged hammer face 2231a has an angle of β1 between the first face segment 2201 and the third hammer face 2231a; the fourth hammer face 2232a, which has passed through the second cutting segment 2232, has an angle of β2 between the second face segment 2202 and the fourth hammer face 2232a; the fifth hammer face 2233a, which has passed through the third cutting segment 2233, has an angle of β3 between the third face segment 2203 and the fifth hammer face 2233a; wherein, β1≥β2≥β3.

[0093] The main cutting edge 223 includes a first cutting edge 2231, a second cutting edge 2232, and a third cutting edge 2233 connected in sequence and in an arc shape. The first cutting edge 2231 is connected to the first secondary cutting edge 221, and the third cutting edge 2233 is connected to the second secondary cutting edge 222. The radius of curvature of the first cutting edge 2231 is R1, the radius of curvature of the second cutting edge 2232 is R2, and the radius of curvature of the third cutting edge 2233 is R3, wherein R1 > R2 ≥ R3.

[0094] The clamping member 30 is disposed in the clamping groove 10a and abuts against the cutting member 20, and is provided with a second mounting hole 30a, which is a through hole. The clamping member 30 has a pressing surface 30b close to the cutting member 20, and the distance between the pressing surface 30b and the central axis of the second fastening hole 10c gradually increases in the direction from the inside to the outside of the third groove 101c.

[0095] The first fastener 40 is a bolt, which passes through the first mounting hole 21a and is connected to the first fastening hole 10b. The axes of the first fastening hole 10b and the second fastening hole 10c are set at an angle.

[0096] The second fastener 50 is a bolt, which passes through the second mounting hole 30a and is connected to the second fastening hole 10c.

[0097] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0098] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cutting tool, characterized in that, include: A clamping member, wherein the clamping member is provided with a clamping groove, and a first fastening hole and a second fastening hole are provided in the clamping groove; A cutting component, wherein the cutting component is disposed in the clamping groove and has a first mounting hole; A clamping member is provided in the clamping groove and abuts against the cutting member, and is provided with a second mounting hole; The first fastener passes through the first mounting hole and is connected to the first fastening hole; The second fastener passes through the second mounting hole and is connected to the second fastening hole.

2. The cutting tool according to claim 1, characterized in that, The clamping groove includes a first groove, a second groove, and a third groove. The first groove extends along a first direction and has an opening at one end of the clamping member. The second groove is located at the end of the first groove away from the opening. The third groove is located at one end of the first groove in a second direction and communicates with the first groove. The second direction, the first direction, and the axial direction of the first fastening hole are perpendicular to each other. The cutting element passes through the opening and is partially located in the first groove. A gap is formed between the cutting element and the second groove. The abutting element is located in the third groove.

3. The cutting tool according to claim 2, characterized in that, The second groove is an arc groove and is located at both ends of the first groove in the second direction. The first groove includes a support groove surface, a first pressing surface, a second pressing surface, and a third pressing surface. The first pressing surface and the second pressing surface are connected to both ends of the support groove surface in the second direction. The first pressing surface is closer to the abutment than the second pressing surface. The third pressing surface is connected to the end of the support groove surface away from the opening. The second groove is provided between the third pressing surface and the first pressing surface. Another second groove is provided between the third pressing surface and the second pressing surface. The support groove surface, the second pressure surface, and the third pressure surface all abut against the cutting part.

4. The cutting tool according to claim 1, characterized in that, The first fastening hole and the second fastening hole are arranged at an angle to each other. The abutment has a pressing surface close to the cutting part. In the direction from the inside to the outside of the third groove, the distance between the pressing surface and the central axis of the second fastening hole gradually increases. The cutting part has a pressure-bearing surface that abuts against the pressure-bearing surface, and the included angle between the pressure-bearing surface and the pressure-bearing surface is θ, wherein 1 degree ≤ θ ≤ 3 degrees.

5. The cutting tool according to claim 1, characterized in that, The cutting part includes a main body and a cutting part. The main body is provided with the first mounting hole, and the cutting part is provided at both ends of the main body in a first direction and extends relative to the main body toward the side away from the clamping groove. The cutting part includes a first surface, a second surface, a third surface, a fourth surface, and a fifth surface. The first surface and the second surface are located at both ends of the cutting part in a second direction, and the third surface and the fourth surface are located at both ends of the cutting part in a first direction. The fourth surface is close to the first mounting hole relative to the third surface. The fifth surface connects the first surface, the second surface, the third surface, and the fourth surface and is away from the main body. A first secondary cutting edge is formed between the third surface and the first surface, a second secondary cutting edge is formed between the fourth surface and the first surface, and a main cutting edge is formed between the fifth surface and the first surface. The second direction, the first direction, and the axial direction of the first mounting hole are perpendicular to each other.

6. The cutting tool according to claim 5, characterized in that, The third surface is inclined relative to the first surface on the side closest to the first mounting hole, and is the first plumb surface that passes through the first secondary cutting edge. The included angle between the third surface and the first plumb surface is α1, where 3 degrees ≤ α1 ≤ 6 degrees.

7. The cutting tool according to claim 5, characterized in that, The fourth surface is inclined relative to the first surface on the side away from the first mounting hole, and is the second plumb surface that passes through the second secondary cutting edge. The included angle between the fourth surface and the second plumb surface is α2, where 3 degrees ≤ α2 ≤ 6 degrees.

8. The cutting tool according to claim 5, characterized in that, The main cutting edge includes a first cutting edge segment, a second cutting edge segment, and a third cutting edge segment connected in sequence and in an arc shape. The first cutting edge segment is connected to the first secondary cutting edge, and the third cutting edge segment is connected to the second secondary cutting edge. The radius of curvature of the first cutting edge segment is R1, the radius of curvature of the second cutting edge segment is R2, and the radius of curvature of the third cutting edge segment is R3, wherein R1 > R2 ≥ R3.

9. The cutting tool according to claim 8, characterized in that, The fifth surface includes a first surface segment, a second surface segment, and a third surface segment that are connected in sequence and are arc-shaped. A first cutting edge is formed between the first surface segment and the first surface, a second cutting edge is formed between the second surface segment and the first surface, and a third cutting edge is formed between the third surface segment and the first surface. The third plumb surface of the first blade segment is formed, and the included angle between the first blade segment and the third plumb surface is β1. The fourth plumb surface of the second cutting edge is formed, and the angle between the second cutting edge and the fourth plumb surface is β2. The fifth plumb surface of the third cutting edge is formed, and the included angle between the third cutting edge and the fifth plumb surface is β3. Where β1≥β2≥β3.

10. The cutting tool according to claim 5, characterized in that, The included angle between the first secondary cutting edge and the second secondary cutting edge is β4, where 10 degrees ≤ β4 ≤ 30 degrees.

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