Ultrasonic turning tool

Abstract

The utility model relates to the technical field of machining, and discloses an ultrasonic turning tool which comprises an ultrasonic transducer, an amplitude-change pole unit and a tool head, the amplitude-change pole unit comprises an amplitude-change pole body and a vibration isolation flange, and the vibration isolation flange is arranged on the side face of the amplitude-change pole body; one end of the amplitude-change pole body is connected with the ultrasonic transducer, and the other end of the amplitude-change pole body is provided with a tool head; at least one through groove is formed in the amplitude-change pole body and used for enabling ultrasonic vibration to be spread to the tool head in the longitudinal direction of the amplitude-change pole body. The ultrasonic cutting device is stable in ultrasonic vibration output, diversified in ultrasonic cutting mode, high in rigidity and high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, and more specifically, to an ultrasonic turning tool. Background Art

[0002] With the continuous development of fields such as automobiles, new energy, and consumer electronics, higher requirements are put forward for material properties and processing quality. For example, high-strength, high-hardness, and low-density materials are widely used, and the required machining accuracy and surface quality are also getting higher and higher, which puts more stringent requirements on machining equipment. Taking turning as an example, traditional turning cannot meet the requirements of high-efficiency and high-quality machining when dealing with the above new materials and new processes, with fast tool wear, poor machining surface quality, and inability to meet the dimensional accuracy requirements.

[0003] Ultrasonic machining has its unique machining advantages for hard and brittle materials and composite materials, and can solve the problems that cannot be overcome by traditional turning. However, the current ultrasonic turning mechanism has problems such as single vibration mode, poor machining stability, insufficient rigidity, and low versatility, resulting in unstable machining quality. Most of them are used for mechanistic machining test research in laboratories and are difficult to be popularized to large-scale industrial applications. Summary of the Invention

[0004] The purpose of the utility model is to provide an ultrasonic turning tool for the technical problems existing in the prior art, which has stable ultrasonic vibration output, diverse ultrasonic cutting modes, and the characteristics of high rigidity and strong versatility.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows:

[0006] The utility model provides an ultrasonic turning tool, which includes an ultrasonic transducer, a horn unit, and a tool head. The horn unit includes a horn body and a vibration isolation flange, and the vibration isolation flange is arranged on the side surface of the horn body.

[0007] One end of the horn body is connected to the ultrasonic transducer, and the other end of the horn body is provided with a tool head; at least one through groove is arranged on the horn body for enabling ultrasonic vibration to longitudinally propagate along the horn body to the tool head.

[0008] Further, the through groove adopts a U-shaped through groove arranged longitudinally along the horn body.

[0009] Further, vibration isolation flanges are symmetrically arranged on both sides of the horn body, and a support part connected to the horn body is arranged on the side surface of each vibration isolation flange, and a vibration isolation groove is formed between the vibration isolation flange and the horn body.

[0010] Further, the horn body is of a cuboid structure, and the through groove penetrates the upper and lower end faces of the horn body.

[0011] Further, the length of the horn body is L1, and the diameter of the ultrasonic transducer is D1, satisfying L1 = n1×D1, where 0 < n1 ≤ 15; the distance between the installation axis of the vibration isolation flange and the installation surface A on the horn body is L2, satisfying L2 = n2×L1, where 0 < n2 < 1.

[0012] Further, the distance between the axis of the through groove and the installation surface A on the horn body is L3, satisfying L3 = n3×L1, where 0 < n3 < 1; the length of the U-shaped through groove is L4, satisfying L4 = n4×(L1 - L2), where 0 < n4 < 1.

[0013] Further, the tool head includes a connecting portion and an installation portion. The connecting portion is connected to the end of the horn body, and a tapered transition portion is provided between the installation portion and the connecting portion. A blade for material processing is provided at the end of the installation portion.

[0014] Further, the horn body, the tool head, and the blade are located on the same axis and in the same plane.

[0015] Further, the tool head includes a clamping portion and a bent installation portion. The clamping portion is connected to the horn body, and a blade is provided at the end of the bent installation portion; the installation axis of the bent installation portion forms a set angle with the axis of the horn body for changing the direction of ultrasonic vibration.

[0016] Further, the value of the angle is 0° < α < 180°; the length of the tool head is L51, satisfying L51 = n9×L1×sinα, where L1 is the length of the horn body and 0 < n9 < 5.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The ultrasonic turning tool provided by the present utility model can make the ultrasonic vibration generated by the ultrasonic transducer be successively amplified by multiple stages by the horn body and the tool head and then reliably longitudinally transmitted to the blade of the tool head by providing a through groove on the horn body, ensuring the reliability of the ultrasonic processing when the blade acts on the material. The overall structure is simple, the ultrasonic vibration output of the whole ultrasonic turning tool is stable, the ultrasonic cutting modes are diverse, and it has the characteristics of high rigidity and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0020] Figure 1 This is the structural diagram of the first example of the ultrasonic turning tool of the present utility model.

[0021] Figure 2 This is another structural diagram of the first example of the ultrasonic turning tool of the present utility model.

[0022] Figure 3 This is the parameter schematic diagram of the first example of the ultrasonic turning tool of the present utility model.

[0023] Figure 4 This is another parameter schematic diagram of the first example of the ultrasonic turning tool of the present utility model.

[0024] Figure 5 This is the structural diagram of the second example of the ultrasonic turning tool of the present utility model.

[0025] Figure 6 This is another structural diagram of the second example of the ultrasonic turning tool of the present utility model.

[0026] Figure 7 This is the parameter schematic diagram of the second example of the ultrasonic turning tool of the present utility model.

[0027] Figure 8 This is another parameter schematic diagram of the second example of the ultrasonic turning tool of the present utility model.

[0028] Among them, 10 - ultrasonic transducer, 20 - horn unit, 21 - horn body, 22 - vibration isolation flange, 221 - support part, 23 - vibration isolation groove, 24 - through groove, 30 - tool head, 31 - connection part, 32 - installation part, 33 - tapered transition part, 34 - clamping part, 35 - bent installation part, 40 - blade. Specific embodiments

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. For example, the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position based on the orientation or position shown in the drawings, which are only for convenience of description and should not be construed as a limitation to the technical solution of the present application.

[0030] In the description, claims and the above description of the drawings of the present utility model, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion; the terms "first", "second", etc. in the description, claims or the above drawings of the present utility model are used to distinguish different objects, rather than to describe a specific order. In the description, claims and the above description of the drawings of the present utility model, when an element is referred to as being "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on that other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to that other element.

[0031] In addition, the mention of "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present utility model. The phrase appears at various positions in the description and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] Referring to Figure 1 and Figure 2 As shown, the present utility model provides an ultrasonic turning tool, which includes an ultrasonic transducer 10, a horn unit 20, and a tool head 30. The horn unit 20 includes a horn body 21 and a vibration isolation flange 22. Vibration isolation flanges 22 are relatively arranged on both sides of the horn body 21.

[0033] One end of the horn body 21 is connected to the ultrasonic transducer 10, and a tool head 30 is provided at the other end of the horn body 21. The tool head 30 is used for processing materials. At least one through groove 24 is provided on the horn body 21 for enabling ultrasonic vibration to propagate longitudinally along the horn body 21 to the tool head 30.

[0034] Specifically, by providing at least one through groove 24 on the horn body 21, the ultrasonic vibration generated by the ultrasonic transducer 10 can be transmitted longitudinally along the horn body 21 to the tool head 30, which can increase the ultrasonic amplitude on the tool head 30 and ensure that the tool head 30 can perform ultrasonic processing on materials.

[0035] Specifically, the length of the horn body 21 is L1, and the diameter of the ultrasonic transducer 10 is D1, satisfying L1 = n1 × D1, where 0 < n1 ≤ 15. Among them, D1 is usually a given value, and n1 can take values of 0.5, 1, 5, 10, 15 or any value within the range, which can ensure reliable installation of the two in cooperation.

[0036] Specifically, the distance between the installation axis of the vibration isolation flange 22 and the installation surface A on the horn body 21 is L2, and the distance between the axis of the through groove 24 and the installation surface A is L3, satisfying L2 = n2×L1, L3 = n3×L1, 0 < n2 < 1, 0 < n3 < 1, and n2 and n3 can take values of 0.1, 0.2, 0.5, 0.7, 0.9 or any value within the range, which can ensure the reliability of installation and operation.

[0037] Further, the through groove 24 is a U-shaped through groove longitudinally arranged along the horn body 21, which is convenient for processing and setting, and can further ensure the reliability of ultrasonic amplitude transmission to the tool head 30.

[0038] Specifically, the length of the U-shaped through groove is L4, satisfying L4 = n4×(L1 - L2), 0 < n4 < 1, and n4 can take values of 0.1, 0.2, 0.5, 0.7, 0.9 or any value within the range. It can be understood that the through groove 24 can also adopt other structures. In the present utility model, setting a U-shaped through groove on the horn body 21 and satisfying the length function relationship can ensure that ultrasonic vibration can be transmitted longitudinally along the horn body 21.

[0039] Specifically, the diameter of the arc parts at both ends of the U-shaped through groove is D2, satisfying D2 = 2π×n8×W2, 0 < n8 < 1, and n8 can take values of 0.05, 0.2, 0.5, 0.7, 0.9 or any value within the range.

[0040] Further, vibration isolation flanges 22 are symmetrically arranged on both sides of the horn body 21. A support part 221 is provided on the side surface of each vibration isolation flange 22 to connect with the horn body 21. Vibration isolation grooves 23 are symmetrically arranged on both sides of the support part 221, that is, vibration isolation grooves 23 are formed between the vibration isolation flanges 22 and the horn body 21, which is convenient for the vibration isolation flanges 22 to form vibration null points.

[0041] Specifically, mounting holes 222 are provided on the vibration isolation flanges 22, which is convenient for installation in cooperation with an external machine tool. By forming vibration isolation grooves 23 between the vibration isolation flanges 22 and the horn body 21, ultrasonic amplitude leakage is avoided, which affects the external machine tool cooperating with the horn unit 20.

[0042] Specifically, the length of the support part 221 is L6, and the width of the support part 221 is L7, satisfying L6 = n6×L4, L7 = n7×L6, 0 < n6 < 1, 0 < n7 < 1, and n6 and n7 can take values of 0.05, 0.2, 0.5, 0.7, 0.9 or any value within the range, which can ensure the reliability of installation and operation.

[0043] Furthermore, the horn body 21 is a rectangular parallelepiped structure, and the through slot 24 runs through the upper and lower end surfaces of the horn body 21. Compared with the cylindrical structure, the horn body 21 adopts a rectangular parallelepiped structure, which can reduce the overall installation space of the ultrasonic turning tool, and also facilitate the reliable installation and matching of the vibration isolation flange 22 and the machine tool, that is, the horn body 21 adopts a rectangular parallelepiped structure to increase the matching surface with the machine tool, which is convenient for the two to be fixed and installed.

[0044] In one embodiment of the present utility model, continue to refer to Figure 2 As shown, the tool head 30 includes a connecting portion 31 and a mounting portion 32. The connecting portion 31 is connected to the end of the amplitude transformer body 21. A conical transition portion 33 is provided between the mounting portion 32 and the connecting portion 31. A blade 40 for material processing is provided at the end of the mounting portion 32.

[0045] Specifically, the cross-sectional area of ​​the tapered transition portion 33 perpendicular to the axis of the horn body 21 gradually decreases along the ultrasonic amplitude transmission direction, that is, gradually decreases from the horn body 21 to the blade 40, which can increase the ultrasonic amplitude transmitted to the blade 40. It can be understood that the tapered transition portion 33 can be provided with multiple stages, which can realize the multi-stage amplitude variation effect between the ultrasonic transducer 10 and the blade 40.

[0046] Specifically, the length of the tool head 30 is L5, satisfying L5=n5×L1, 0<n5≤5, and n5 can be 0.5, 1, 2, 2.5, 3, 5 or any value within the range, which can ensure the reliability of ultrasonic machining.

[0047] Specifically, the minimum width of the mounting portion 32 is W1, and the maximum width of the connecting portion 31 is W2, satisfying W2=m1×D1, W1=m2×W2, 0<m1≤7, 0<m2≤1, m1 can take values ​​of 1, 3, 5, 7 or any value within the range, and m2 can take values ​​of 0.1, 0.3, 0.5, 0.7, 1 or any value within the range, which can ensure the reliability of ultrasonic machining.

[0048] Furthermore, the amplitude transformer body 21, the tool head 30 and the blade 40 are located on the same axis and on the same plane, and can drive the blade 40 to vibrate longitudinally.

[0049] In this embodiment, the amplitude transformer body 21 and the tool head 30 can adopt an integrated structure, and a positioning groove is provided on the mounting portion 32, and a blade 40 is arranged in the positioning groove, which is convenient for installing and positioning the blade 40; the cutting edge of the blade 40 is arranged in a direction away from the amplitude transformer body 21, which is also convenient for processing the workpiece and ensuring the reliability of the overall operation of the ultrasonic turning tool.

[0050] Specifically, the thickness of the vibration isolation flange 22 is T1, and the thickness of the installation part 32 is T2, satisfying T1 = m3×D1, T2 = m4×T1, 0 < m3 ≤ 6, 0 < m4 ≤ 10. m3 can take values of 1, 3, 5, 6 or any value within the range, and m2 can take values of 1, 2, 4, 6, 10 or any value within the range, which can ensure the reliability of ultrasonic processing.

[0051] In another embodiment of the present invention, refer to Figure 4 and Figure 5 As shown, the tool head 30 includes a clamping part 34 and a bent installation part 35. The clamping part 34 is connected to the horn body 21, and a blade 40 is arranged at the end of the bent installation part 35; the installation axis of the bent installation part 35 forms a set angle with the axis of the horn body 21, which is used to change the direction of the ultrasonic vibration transmitted to the blade 40.

[0052] Furthermore, the bending angle of the bent installation part 35, that is, the included angle α, takes values of 0° < α < 180°. α can take values of 5°, 30°, 60°, 90°, 120°, 150°, 175° or any value within the range, which is convenient for changing the direction of ultrasonic vibration and meets different processing requirements.

[0053] Specifically, the length of the tool head 30 is L51, satisfying L51 = n9×L1×sinα, 0 < n9 < 5. n9 can take values of 0.5, 1, 2, 2.5, 3, 4.5 or any value within the range, which can ensure the reliability of ultrasonic processing. The installation axis of the blade 40 is parallel to the installation axis of the bent installation part 35, which is convenient for the blade 40 to process materials and meets different processing requirements.

[0054] In this embodiment, the tool head 30 is provided with a bent installation part 35, and the installation axis of the bent installation part 35 forms an included angle α with the axis of the horn body 21. In this way, the direction of the ultrasonic vibration generated by the ultrasonic transducer 10 transmitted to the blade 40 can be changed, that is, the longitudinal vibration can be converted into bending vibration to meet different processing requirements.

[0055] In the present invention, the ultrasonic amplitude generated by the ultrasonic transducer 10 undergoes a secondary amplitude change effect successively through the horn body 21 and the tool head 30, and then is transmitted to the blade 40 at the end of the tool head 30, which can make the blade 40 have a larger amplitude and ensure the reliability of ultrasonic processing.

[0056] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. An ultrasonic turning tool, characterized in that: It includes an ultrasonic transducer, a horn unit, and a tool head. The horn unit includes a horn body and a vibration isolation flange. The side of the horn body is provided with a vibration isolation flange. One end of the horn body is connected to the ultrasonic transducer, and the other end of the horn body is provided with a tool head; at least one through slot is provided on the horn body for transmitting ultrasonic vibration along the longitudinal direction of the horn body to the tool head.

2. The ultrasonic turning tool according to claim 1, characterized in that: The through groove is a U-shaped through groove arranged along the longitudinal direction of the amplitude transformer body.

3. The ultrasonic turning tool according to claim 1, characterized in that: Vibration isolation flanges are symmetrically arranged on both sides of the horn body, a support portion connected to the horn body is arranged on the side of each vibration isolation flange, and a vibration isolation groove is formed between the vibration isolation flange and the horn body.

4. The ultrasonic turning tool according to claim 1, characterized in that: The amplitude transformer body is a rectangular parallelepiped structure, and the through slot passes through the upper and lower end surfaces of the amplitude transformer body.

5. The ultrasonic turning tool according to claim 1, characterized in that: The length of the amplitude transformer body is L1, and the diameter of the ultrasonic transducer is D1, satisfying L1=n1×D1, 0<n1≤15; the distance between the installation axis of the vibration isolation flange and the installation surface A on the amplitude transformer body is L2, satisfying L2=n2×L1, 0<n2<1.

6. The ultrasonic turning tool according to claim 5, characterized in that: The distance between the axis of the through slot and the mounting surface A on the amplitude transformer body is L3, satisfying L3=n3×L1, 0<n3<1; the length of the through slot is L4, satisfying L4=n4×(L1-L2), 0<n4<1.

7. The ultrasonic turning tool according to any one of claims 1 to 6, characterized in that: The tool head comprises a connecting portion and a mounting portion, wherein the connecting portion is connected to the end of the amplitude transformer body, a conical transition portion is arranged between the mounting portion and the connecting portion, and a blade for material processing is arranged at the end of the mounting portion.

8. The ultrasonic turning tool according to claim 7, characterized in that: The horn body, the tool head and the blade are located on the same axis and on the same plane.

9. The ultrasonic turning tool according to any one of claims 1 to 6, characterized in that: The tool head includes a clamping portion and a bent mounting portion, wherein the clamping portion is connected to the amplitude transformer body, and a blade is arranged at the end of the bent mounting portion; the mounting axis of the bent mounting portion forms a set angle with the axis of the amplitude transformer body, which is used to change the direction of ultrasonic vibration.

10. The ultrasonic turning tool according to claim 9, characterized in that: The angle is 0°<α<180°; the length of the tool head is L51, which satisfies L51=n9×L1×sinα, L1 is the length of the amplitude changing rod body, and 0<n9<5.

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