Ultrasonic cutting tool and machining method thereof

Abstract

The invention relates to the technical field of tool machining, in particular to an ultrasonic cutting tool and a machining method thereof.The ultrasonic cutting tool comprises a mounting part, a supporting part and a tool body, one end of the supporting part is connected with the mounting part, the tool body is connected with the other end of the supporting part, and the tool body is provided with a first side face; front tool faces are arranged on the two sides of the first side face, and a plurality of holes are formed in the tool body in the longitudinal vibration direction. Wherein the rake face is arranged in an inclined state, and the lengths of the multiple holes are sequentially changed according to the inclination trend of the rake face. The multiple holes with the lengths changing in sequence are formed in the tool body in the longitudinal vibration direction, in this way, the front tool face is subjected to plastic deformation at the positions of the holes through hole forming, original stress distribution at the positions is changed through plastic deformation, the tool body is prevented from being broken, and the service life of the tool is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of tool processing, and in particular to an ultrasonic cutting tool and a processing method thereof. Background Art

[0002] Ultrasonic cutting refers to a processing method in which ultrasonic frequency vibration is applied in the longitudinal direction of the tool so that the tool performs pulse cutting on the workpiece material. Ultrasonic cutting has the advantages of low cutting force, low cutting temperature, and high processing quality. It has been widely used in aerospace, electronics and other fields. CNC ultrasonic cutting machine tools are high-end processing equipment for composite materials and semiconductor wafers. The ultrasonic cutting method is an advanced manufacturing method that relies on CNC ultrasonic cutting machine tools as a carrier to perform efficient and precise processing of workpiece materials. The tool is an indispensable tool for CNC ultrasonic cutting machine tools. The processing quality and performance of the tool directly affect the product qualification rate and the production cost of the product. For this reason, we need to provide an ultrasonic cutting tool and its processing method.

[0003] At present, ultrasonic cutting tools (i.e., pointed knives and forming knives) do not have holes. During ultrasonic cutting, ultrasonic frequency vibrations will generate large stress and lateral vibrations, which will limit the longitudinal vibration amplitude, causing the tool to break, thereby affecting the ultrasonic cutting efficiency and processing quality. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in order to solve the technical problem that existing cutting tools break due to high stress and lateral vibration, the present invention provides an ultrasonic cutting tool and a processing method thereof. By improving the tool structure, the stress distribution of the tool body when subjected to force is made more uniform, the lateral vibration amplitude is reduced, the longitudinal vibration amplitude of the tool is increased, and the tool breakage is avoided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an ultrasonic cutting tool, comprising: a mounting part, a supporting part and a tool body, one end of the supporting part is connected to the mounting part, and the tool body is connected to the other end of the supporting part, the tool body has a first side surface, both sides of the first side surface are provided with a front cutting surface, and the tool body is provided with a plurality of holes along the longitudinal vibration direction; wherein: the front cutting surface is arranged in an inclined state, and the lengths of the plurality of holes change sequentially according to the inclination trend of the front cutting surface.

[0006] Therefore, by opening a plurality of holes of successively varying lengths along the longitudinal vibration direction on the tool body, compared with the existing method without opening holes, when the tool body is used, this method causes the front cutting edge to undergo plastic deformation at the position of the hole through the opening of the hole, and changes the original stress distribution at the position through the plastic deformation, thereby greatly reducing the stress deviation range at each position of the front cutting edge (the stress distribution when subjected to force is more uniform), thereby avoiding the breakage of the tool body and increasing the service life of the tool; in addition, since the hole is opened in the longitudinal vibration direction, thus weakening the lateral vibration amplitude of the tool body and increasing the longitudinal vibration amplitude of the tool, thereby avoiding the breakage of the tool body and increasing the service life of the tool.

[0007] Furthermore, the hole is a waist-shaped hole; wherein: the length of the hole is L, the width of the hole is W, and the distance between two adjacent holes is d1.

[0008] Furthermore, the two front cutting surfaces and the A surface together constitute the first side surface, and the cross-sectional shape of the A surface is a triangle; the tool body also has a second side surface, and the second side surface is located on the opposite side of the first side surface, and the two sides of the second side surface are provided with back cutting surfaces, and the back cutting surfaces are arranged in an inclined state, and the two back cutting surfaces and the B surface together constitute the second side surface, and the cross-sectional shape of the B surface is a triangle; wherein: the front cutting surface is connected to the back cutting surface; the inclination angle of the back cutting surface is equal to the inclination angle of the front cutting surface, the width of the front cutting surface is d2, and the width of the back cutting surface is d3, d2>d3. Therefore, since the front cutting surface contacts the chips after cutting and the back cutting surface contacts the workpiece after cutting, for this reason, by means of d2>d3, the front cutting surface facilitates the cutting of the material, and the back cutting surface makes the workpiece after cutting meet the required precision requirements and surface smoothness requirements.

[0009] Furthermore, the two rake faces, the main rake faces and the A face together constitute the first side face, and the cross-sectional shape of the A face is a trapezoid; the two flank faces, the main flank faces and the B face together constitute the second side face, and the cross-sectional shape of the B face is a trapezoid.

[0010] Furthermore, the length L of the plurality of holes is expressed as:

[0011] L={L n , L n-1 ,…,L2,L1,L2,…,L n-1 , L n};

[0012] When the cross-sectional shape of the A surface is a triangle, the calculation formula of the hole length L is:

[0013]

[0014] Wherein: the number of the tool bodies is 2n-1, and n is rounded to an integer, the base of the triangle A surface is a, the height is b, and the inclination angle of the front tool surface is α.

[0015] Furthermore, when the cross-sectional shape of the A surface is a trapezoid, the calculation formula of the hole length L is:

[0016]

[0017] Among them: the upper base of trapezoid A is a1, the lower base is a2, and the height is b.

[0018] Further, the supporting part includes: a positioning part, a transition part and an operating part, the positioning part, the transition part and the operating part are connected in sequence, the end of the positioning part away from the transition part is connected to the mounting part, and the end of the operating part away from the transition part is connected to the tool body; wherein: the side surface of the positioning part close to one side of the mounting part is used to position the tool body and the output end of the amplitude transformer, and is also used to transmit ultrasonic energy, and the cross-sectional shape of the operating part is a regular hexagon.

[0019] A method for processing an ultrasonic cutting tool, comprising the following steps:

[0020] S1, obtaining a blank of an ultrasonic cutting tool;

[0021] S2, obtaining the ultrasonic cutting tool blank in step S1, and cutting the ultrasonic cutting tool blank into an ultrasonic cutting tool workpiece;

[0022] S3, obtaining the ultrasonic cutting tool workpiece in step S2, and cutting the ultrasonic cutting tool workpiece to form an ultrasonic cutting tool workpiece having a mounting portion;

[0023] S4, obtaining the ultrasonic cutting tool workpiece with the mounting portion in step S3, and cutting the ultrasonic cutting tool workpiece with the mounting portion to form an ultrasonic cutting tool workpiece with the mounting portion and a supporting portion;

[0024] S5, obtaining the ultrasonic cutting tool workpiece having the mounting portion and the supporting portion in step S4, and cutting the ultrasonic cutting tool workpiece having the mounting portion and the supporting portion to form an ultrasonic cutting tool;

[0025] S6. Obtain the ultrasonic cutting tool in step S5, and perform fine grinding on the blade of the ultrasonic cutting tool to form a tool product.

[0026] Furthermore, the step S4 comprises the following steps:

[0027] S4-1, obtaining the ultrasonic cutting tool workpiece having the mounting portion in step S3, and cutting the ultrasonic cutting tool workpiece having the mounting portion to form an ultrasonic cutting tool workpiece having the mounting portion and a positioning member;

[0028] S4-2, obtaining the ultrasonic cutting tool workpiece having the mounting portion and the positioning piece in step S4-1, and cutting the ultrasonic cutting tool workpiece having the mounting portion and the positioning piece to form an ultrasonic cutting tool workpiece having the mounting portion, the positioning piece and the transition piece;

[0029] S4-3. Obtain the ultrasonic cutting tool workpiece having the mounting portion, the positioning piece and the transition piece in step S4-2, and cut the ultrasonic cutting tool workpiece having the mounting portion, the positioning piece and the transition piece to form an ultrasonic cutting tool workpiece having the mounting portion, the positioning piece, the transition piece and the operating piece.

[0030] Furthermore, the step S5 comprises the following steps:

[0031] S5-1, obtaining the ultrasonic cutting tool workpiece having the mounting portion and the supporting portion in step S4, and cutting the ultrasonic cutting tool workpiece having the mounting portion and the supporting portion to form an ultrasonic cutting tool without a hole;

[0032] S5-2, obtaining the ultrasonic cutting tool without a hole in step S5-1, and performing a hole-opening process on the ultrasonic cutting tool without the hole to obtain an ultrasonic cutting tool with the hole;

[0033] S5-3, obtaining the ultrasonic cutting tool with the hole in step S5-2, and performing a quenching treatment on the ultrasonic cutting tool with the hole to obtain an ultrasonic cutting tool that has been quenched and has the hole.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] By opening a plurality of holes of successively varying lengths along the longitudinal vibration direction on the tool body, compared with the existing method without opening holes, when the tool body is used, this method causes the front cutting edge to undergo plastic deformation at the position of the hole through the opening of the hole, and changes the original stress distribution at the position through the plastic deformation, thereby greatly reducing the stress deviation range at each position of the front cutting edge (the stress distribution when subjected to force is more uniform), avoiding the tool body from breaking, thereby increasing the service life of the tool; in addition, since the hole is opened in the longitudinal vibration direction, the lateral vibration amplitude of the tool body is weakened, and the longitudinal vibration amplitude of the tool is increased, thereby avoiding the tool body from breaking, thereby increasing the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0037] Figure 1 It is a structural schematic diagram of the ultrasonic cutting tool of Example 1;

[0038] Figure 2 It is a structural schematic diagram of the first side of Example 1;

[0039] Figure 3 It is a structural schematic diagram of the second side of Example 1;

[0040] Figure 4 It is a structural schematic diagram of the A surface of Example 1;

[0041] Figure 5 For Example 1 Figure 4 A is an enlarged schematic diagram of the local structure at center A;

[0042] Figure 6 It is a structural schematic diagram of the waist-shaped hole of the present invention;

[0043] Figure 7 It is a structural schematic diagram of an ultrasonic cutting tool and a processing method thereof according to Example 2;

[0044] Figure 8 It is a structural schematic diagram of the first side of Example 2;

[0045] Fig. 9 It is a structural schematic diagram of the second side of Example 2;

[0046] Fig.10 It is a structural schematic diagram of the A surface of Example 2;

[0047] Fig.11 is a flow chart of a method for processing an ultrasonic cutting tool of Example 3;

[0048] Fig.12 is a flow chart of step S4 of embodiment 3;

[0049] Fig.13 This is a flowchart of step S5 of Example 3.

[0050] In the figure: 1, mounting portion; 2, supporting portion; 201, positioning member; 202, transition member; 203, operating member; 3, tool body; 301, first side surface; 3011, front cutting edge; 3012, main front cutting edge; 302, second side surface; 3021, back cutting edge; 3022, main back cutting edge; 303, hole. DETAILED DESCRIPTION

[0051] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0052] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Example 1

[0055] like Figures 1 to 6As shown, an ultrasonic cutting tool is a sharp knife, comprising: a mounting portion 1, a supporting portion 2 and a tool body 3, one end of the supporting portion 2 is connected to the mounting portion 1, and the tool body 3 is connected to the other end of the supporting portion 2, the tool body 3 has a first side surface 301, both sides of the first side surface 301 are provided with a front blade surface 3011, and the tool body 3 is provided with a plurality of holes 303 along the longitudinal vibration direction; wherein: the front blade surface 3011 is arranged in an inclined state, and the lengths of the plurality of holes 303 change sequentially according to the inclination trend of the front blade surface 3011. Therefore, by opening a plurality of holes 303 of successively varying lengths along the longitudinal vibration direction on the tool body 3, compared with the existing method without opening the holes 303, when the tool body 3 is used, this method causes the front cutting surface 3011 to undergo plastic deformation at the position of the holes 303 through the opening of the holes 303, and changes the original stress distribution at the position through the plastic deformation, thereby greatly reducing the stress deviation range of the front cutting surface 3011 at each position (the stress distribution when subjected to force is more uniform), thereby avoiding the tool body 3 from breaking, thereby increasing the service life of the tool; in addition, since the opening direction of the holes 303 is along the longitudinal vibration direction, thereby weakening the lateral vibration amplitude of the tool body 3, increasing the longitudinal vibration amplitude of the tool, thereby avoiding the tool body 3 from breaking, thereby increasing the service life of the tool.

[0056] In other words, by opening a plurality of holes 303 of varying lengths along the longitudinal vibration direction on the tool body 3, the stress distribution at each position of the front cutting edge 3011 is made more uniform, thereby greatly reducing the stress deviation range at each position of the tool body 3, and making the stress distribution at the tool body 3 more uniform after being subjected to force. In this way, the tool body 3 can be prevented from breaking. In the existing method where the holes 303 are not opened, the stress at each position of the tool body 3 is inconsistent, with some positions having greater stress and some positions having less stress. The stress variation range at each position of the tool body 3 after being subjected to force is greater, and thus, it is very easy to break during use.

[0057] It should be noted that the thickness of the ultrasonic cutting tool is very small (generally only 1mm-8mm), and it will break when subjected to strong vibration. Therefore, during use, by controlling the stress distribution on the tool body 3 to be more uniform, the service life of the ultrasonic cutting tool can be changed intuitively.

[0058] For example, the outer peripheral surface of the mounting portion 1 is provided with threads, so that the entire tool is threadedly connected to the output end of the amplitude transformer.

[0059] In this embodiment, the hole 303 is a waist-shaped hole; wherein: the length of the hole 303 is L, the width of the hole 303 is W, and the spacing between two adjacent holes 303 is d1. Specifically, the waist-shaped hole 303 means: the middle area of ​​the cross section of the hole 303 is a square (i.e., a square with a length of L-W and a width of W), and the two end areas are semicircular arcs (i.e., semicircular arcs with a diameter of W), and in addition, the front cutting surface 3011 is tangent to the semicircular arc on the side of the hole 303 away from the operating member 203 (i.e., the semicircular arc on the side of the hole 303 away from the operating member 203 is tangent to the intersection line of the front cutting surface 3011 and the A surface (i.e., the side cutting edge)).

[0060] In this embodiment, the two rake faces 3011 and the A surface together constitute the first side surface 301, and the cross-sectional shape of the A surface is a triangle; the tool body 3 also has a second side surface 302, and the second side surface 302 is located on the opposite side of the first side surface 301, and both sides of the second side surface 302 are provided with a back face 3021, and the back face 3021 is arranged in an inclined state. The two back faces 3021 and the B surface together constitute the second side surface 302, and the cross-sectional shape of the B surface is a triangle; wherein: the rake face 3011 is connected to the back face 3021; ​​the inclination angle of the back face 3021 is equal to the inclination angle of the rake face 3011, the width of the rake face 3011 is d2, the width of the back face 3021 is d3, and d2>d3;

[0061] The length L of the plurality of holes 303 is expressed as:

[0062] L={L n , L n-1 ,…,L2,L1,L2,…,L n-1 , L n};

[0063] When the cross-sectional shape of the A surface is a triangle, the calculation formula for the length L of the hole 303 is:

[0064]

[0065] Among them: the number of tool bodies 3 is 2n-1, and n is rounded, the base of triangle A is a, the height is b, and the inclination angle of the front cutting face 3011 is α. Therefore, since the front cutting face 3011 contacts the cut chips after cutting, and the back cutting face 3021 contacts the cut workpiece after cutting, for this reason, by the way of d2>d3, the front cutting face 3011 facilitates the cutting of materials (that is, facilitates the separation of the cut chips from the cut workpiece), and the back cutting face 3021 makes the cut workpiece meet the required precision requirements and surface smoothness requirements.

[0066] It should be noted that: during the use of the tool body 3 , the entity in the area of ​​the first side surface 301 after cutting is the chips, and the entity in the area of ​​the second side surface 302 is the required workpiece.

[0067] In this embodiment, the support portion 2 includes: a positioning member 201, a transition member 202 and an operating member 203, the positioning member 201, the transition member 202, and the operating member 203 are connected in sequence, the end of the positioning member 201 away from the transition member 202 is connected to the mounting portion 1, and the end of the operating member 203 away from the transition member 202 is connected to the tool body 3; wherein: the side surface of the positioning member 201 close to the mounting portion 1 is used to position the tool body 3 and the output end of the amplitude transformer, and is also used to transmit ultrasonic energy, and the cross-sectional shape of the operating member 203 is a regular hexagon.

[0068] It should be noted that during the installation of the tool body 3, the tool body 3 is installed to the output end of the amplitude transformer through the installation part 1, and the installation of the tool body 3 is performed by the operating member 203 with a regular hexagonal cross-section (ie, the tool body 3 is rotated to achieve installation).

[0069] Embodiment 2:

[0070] like Figures 7 to 10 As shown, the difference from Example 1 is that the ultrasonic cutting tool is a forming tool, two rake faces 3011, the main rake face 3012 and the A surface together constitute the first side surface 301, and the cross-sectional shape of the A surface is a trapezoid; two flank faces 3021, the main flank face 3022 and the B surface together constitute the second side surface 302, and the cross-sectional shape of the B surface is a trapezoid; when the cross-sectional shape of the A surface is a trapezoid, the calculation formula of the length L of the hole 303 is:

[0071]

[0072] Specifically, a portion of the holes 303 is tangent to the main rake face 3012 (i.e., a portion of the holes 303 is tangent to the intersection line of the main rake face 3012 and the A face (i.e., the transverse cutting edge)), and the length of the portion of the holes 303 remains unchanged, and another portion of the holes 303 is tangent to the rake face 3011 (i.e., another portion of the holes 303 is tangent to the intersection line of the rake face 3011 and the A face (i.e., the side cutting edge)), and the length of the portion of the holes 303 changes sequentially.

[0073] Embodiment 3:

[0074] like Figures 11 to 13 As shown, a method for processing an ultrasonic cutting tool comprises the following steps:

[0075] S1, obtaining a blank of an ultrasonic cutting tool;

[0076] S2, obtaining the ultrasonic cutting tool blank in step S1, and cutting the ultrasonic cutting tool blank into an ultrasonic cutting tool workpiece;

[0077] S3, obtaining the ultrasonic cutting tool workpiece in step S2, and cutting the ultrasonic cutting tool workpiece to form an ultrasonic cutting tool workpiece having a mounting portion 1;

[0078] S4, obtaining the ultrasonic cutting tool workpiece having the mounting portion 1 in step S3, and cutting the ultrasonic cutting tool workpiece having the mounting portion 1 to form an ultrasonic cutting tool workpiece having the mounting portion 1 and the supporting portion 2;

[0079] S5, obtaining the ultrasonic cutting tool workpiece having the mounting portion 1 and the supporting portion 2 in step S4, and cutting the ultrasonic cutting tool workpiece having the mounting portion 1 and the supporting portion 2 to form an ultrasonic cutting tool;

[0080] S6. Obtain the ultrasonic cutting tool in step S5, and perform fine grinding on the blade of the ultrasonic cutting tool to form a tool product.

[0081] Specifically, when the ultrasonic cutting tool is a pointed knife, the finely ground blade includes: a front blade surface 3011 and a back blade surface 3021; ​​when the ultrasonic cutting tool is a forming knife, the finely ground blade includes: a front blade surface 3011, a back blade surface 3021, a main front blade surface 3012 and a main back blade surface 3022.

[0082] In this embodiment, step S4 includes the following steps:

[0083] S4-1, obtaining the ultrasonic cutting tool workpiece having the mounting portion 1 in step S3, and cutting the ultrasonic cutting tool workpiece having the mounting portion 1 to form an ultrasonic cutting tool workpiece having the mounting portion 1 and a positioning member 201;

[0084] S4-2, obtaining the ultrasonic cutting tool workpiece having the mounting portion 1 and the positioning piece 201 in step S4-1, and cutting the ultrasonic cutting tool workpiece having the mounting portion 1 and the positioning piece 201 to form an ultrasonic cutting tool workpiece having the mounting portion 1, the positioning piece 201 and the transition piece 202;

[0085] S4-3. Obtain the ultrasonic cutting tool workpiece having the mounting portion 1, the positioning piece 201 and the transition piece 202 in step S4-2, and cut the ultrasonic cutting tool workpiece having the mounting portion 1, the positioning piece 201 and the transition piece 202 to form an ultrasonic cutting tool workpiece having the mounting portion 1, the positioning piece 201, the transition piece 202 and the operating piece 203 (that is, having the mounting portion 1 and the supporting portion 2).

[0086] In this embodiment, step S5 includes the following steps:

[0087] S5-1, obtaining the ultrasonic cutting tool workpiece having the mounting portion 1 and the supporting portion 2 in step S4, and cutting the ultrasonic cutting tool workpiece having the mounting portion 1 and the supporting portion 2 to form an ultrasonic cutting tool without a hole 303;

[0088] S5-2, obtaining the ultrasonic cutting tool without the hole 303 in step S5-1, and performing a hole-opening process on the ultrasonic cutting tool without the hole 303 to obtain an ultrasonic cutting tool with a hole 303;

[0089] S5-3, obtaining the ultrasonic cutting tool with the hole 303 in step S5-2, and quenching the ultrasonic cutting tool with the hole 303 to obtain an ultrasonic cutting tool that has been quenched and has the hole 303. Specifically, if an ultrasonic cutting sharp knife is processed, the cutting edge includes: a front blade face 3011 and a back blade face 3021; ​​if an ultrasonic cutting forming knife is processed, the cutting edge includes: a front blade face 3011, a main front blade face 3012, a back blade face 3021 and a main back blade face 3022.

[0090] Specifically, the purpose of quenching is to significantly improve the rigidity, hardness, wear resistance, fatigue strength and toughness of the tool, so as to meet the different use requirements of the tool.

[0091] In summary, the present invention opens a plurality of holes 303 of varying lengths along the longitudinal vibration direction on the tool body 3. Compared with the existing method without opening the holes 303, when the tool body 3 is in use, this method causes the front cutting surface 3011 to undergo plastic deformation at the position of the holes 303 through the openings 303, and changes the original stress distribution at the position through the plastic deformation. In this way, the stress deviation range of each position of the front cutting surface 3011 is greatly reduced (the stress distribution when subjected to force is more uniform), thereby avoiding the tool body 3 from breaking, thereby increasing the service life of the tool. In addition, since the hole 303 is opened in the longitudinal vibration direction, the lateral vibration amplitude of the tool body 3 is weakened, the longitudinal vibration amplitude of the tool is increased, thereby avoiding the tool body 3 from breaking, thereby increasing the service life of the tool.

[0092] The above description is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An ultrasonic cutting tool, characterized in that: include: a mounting portion (1), and A supporting portion (2), one end of the supporting portion (2) being connected to the mounting portion (1); A tool body (3), the tool body (3) being connected to the other end of the support portion (2), the tool body (3) having a first side surface (301), both sides of the first side surface (301) being provided with a rake surface (3011), and the tool body (3) being provided with a plurality of holes (303) along a longitudinal vibration direction; Wherein: the front cutting surface (3011) is arranged in an inclined state, and the lengths of the plurality of holes (303) change in sequence according to the inclination trend of the front cutting surface (3011).

2. The ultrasonic cutting tool according to claim 1, characterized in that: The hole (303) is a waist-shaped hole; Wherein: the length of the hole (303) is L, the width of the hole (303) is W, and the distance between two adjacent holes (303) is d1.

3. The ultrasonic cutting tool according to claim 1, characterized in that: The two rake faces (3011) and the A surface together form the first side surface (301), and the cross-sectional shape of the A surface is a triangle; The tool body (3) further comprises a second side surface (302), and the second side surface (302) is located on the opposite side of the first side surface (301), and both sides of the second side surface (302) are provided with a flank surface (3021), and the flank surface (3021) is arranged in an inclined state, and the two flank surfaces (3021) and the B surface together constitute the second side surface (302), and the cross-sectional shape of the B surface is a triangle; Wherein: the front cutting surface (3011) is connected to the rear cutting surface (3021); The inclination angle of the flank surface (3021) is equal to the inclination angle of the rake surface (3011), the width of the rake surface (3011) is d2, the width of the flank surface (3021) is d3, and d2>d3.

4. The ultrasonic cutting tool according to claim 3, characterized in that: The two rake faces (3011), the main rake face (3012) and the A surface together constitute the first side surface (301), and the cross-sectional shape of the A surface is a trapezoid; The two flank surfaces (3021), the main flank surface (3022) and the B surface together constitute the second side surface (302), and the cross-sectional shape of the B surface is a trapezoid.

5. The ultrasonic cutting tool according to claim 1, characterized in that: The length L of the plurality of holes (303) is expressed as: L={L n 、L n-1 、…、L2、L1、L2、…、L n-1 、L n }; When the cross-sectional shape of the A surface is a triangle, the calculation formula for the length L of the hole (303) is: Wherein: the number of the tool bodies (3) is 2n-1, and n is rounded to an integer, the base of the triangle A surface is a, the height is b, and the inclination angle of the front tool surface (3011) is α.

6. The ultrasonic cutting tool according to claim 1, characterized in that: When the cross-sectional shape of the A surface is a trapezoid, the calculation formula for the length L of the hole (303) is: Among them: the upper base of trapezoid A is a1, the lower base is a2, and the height is b.

7. The ultrasonic cutting tool according to claim 1, characterized in that: The support portion (2) comprises: A positioning member (201), a transition member (202) and an operating member (203), wherein the positioning member (201), the transition member (202) and the operating member (203) are connected in sequence, an end of the positioning member (201) away from the transition member (202) is connected to the mounting portion (1), and an end of the operating member (203) away from the transition member (202) is connected to the tool body (3); Wherein: the side surface of the positioning member (201) close to the mounting portion (1) is used to position the tool body (3) and the output end of the amplitude transformer, and is also used to transmit ultrasonic energy; the cross-sectional shape of the operating member (203) is a regular hexagon.

8. A method for processing an ultrasonic cutting tool according to any one of claims 1 to 7, characterized in that: The following steps are described: S1, obtaining a blank of an ultrasonic cutting tool; S2, obtaining the ultrasonic cutting tool blank in step S1, and cutting the ultrasonic cutting tool blank into an ultrasonic cutting tool workpiece; S3, obtaining the ultrasonic cutting tool workpiece in step S2, and cutting the ultrasonic cutting tool workpiece to form an ultrasonic cutting tool workpiece having a mounting portion (1); S4, obtaining the ultrasonic cutting tool workpiece having the mounting portion (1) in step S3, and cutting the ultrasonic cutting tool workpiece having the mounting portion (1) to form an ultrasonic cutting tool workpiece having the mounting portion (1) and a supporting portion (2); S5, obtaining the ultrasonic cutting tool workpiece having the mounting portion (1) and the supporting portion (2) in step S4, and cutting the ultrasonic cutting tool workpiece having the mounting portion (1) and the supporting portion (2) to form an ultrasonic cutting tool; S6. Obtain the ultrasonic cutting tool in step S5, and perform fine grinding on the blade of the ultrasonic cutting tool to form a tool product.

9. The method for processing an ultrasonic cutting tool according to claim 8, characterized in that: The step S4 comprises the following steps: S4-1, obtaining the ultrasonic cutting tool workpiece having the mounting portion (1) in step S3, and cutting the ultrasonic cutting tool workpiece having the mounting portion (1) to form an ultrasonic cutting tool workpiece having the mounting portion (1) and a positioning member (201); S4-2, obtaining the ultrasonic cutting tool workpiece having the mounting portion (1) and the positioning piece (201) in step S4-1, and cutting the ultrasonic cutting tool workpiece having the mounting portion (1) and the positioning piece (201) to form an ultrasonic cutting tool workpiece having the mounting portion (1), the positioning piece (201) and the transition piece (202); S4-3. Obtain the ultrasonic cutting tool workpiece having the mounting portion (1), the positioning piece (201) and the transition piece (202) in step S4-2, and cut the ultrasonic cutting tool workpiece having the mounting portion (1), the positioning piece (201) and the transition piece (202) to form an ultrasonic cutting tool workpiece having the mounting portion (1), the positioning piece (201), the transition piece (202) and the operating piece (203).

10. The method for processing an ultrasonic cutting tool according to claim 8, characterized in that: The step S5 comprises the following steps: S5-1, obtaining the ultrasonic cutting tool workpiece having the mounting portion (1) and the supporting portion (2) in step S4, and cutting the ultrasonic cutting tool workpiece having the mounting portion (1) and the supporting portion (2) to form an ultrasonic cutting tool without a hole (303); S5-2, obtaining the ultrasonic cutting tool without the hole (303) in step S5-1, and performing a hole-opening process on the ultrasonic cutting tool without the hole (303) to obtain an ultrasonic cutting tool with the hole (303); S5-3, obtaining the ultrasonic cutting tool with the hole (303) in step S5-2, and performing a quenching treatment on the ultrasonic cutting tool with the hole (303) to obtain an ultrasonic cutting tool that has been quenched and has the hole (303).

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