Ultrasonic cutter handle, ultrasonic machining equipment and machine tool

Abstract

The utility model discloses an ultrasonic knife handle, ultrasonic machining equipment and a machine tool, and relates to the technical field of drilling machining equipment, the ultrasonic knife handle comprises a knife handle body, a gland and an amplitude-change pole, the gland is connected to the front end of the knife handle body; a plurality of first clamping grooves are formed in the circumferential surface of the amplitude-change pole; a plurality of second clamping grooves corresponding to the first clamping grooves are formed in the connecting position of the cutter handle body and the gland, and openings of the second clamping grooves face the amplitude-change pole. One end of each connecting piece extends into the first clamping groove, the other end of each connecting piece extends into the second clamping groove, and the number of the connecting pieces is larger than or equal to three, so that the amplitude-change pole and the knife handle body are fixedly connected in the axial direction and the circumferential direction of the knife handle body, and the amplitude-change pole is prevented from rotating, swinging and moving relative to the knife handle body. The amplitude-change pole is not in direct hard contact with the knife handle body and the gland, so that the vibration loss of the amplitude-change pole in the working process of the ultrasonic knife handle is reduced. The ultrasonic machining equipment adopts the ultrasonic cutter handle and also has the above effects.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling processing equipment, in particular to an ultrasonic tool handle, ultrasonic processing equipment and a machine tool. Background Art

[0002] Ultrasonic machining typically involves applying voltage or current to an ultrasonic toolholder through an ultrasonic generator, causing the ultrasonic vibrating element within it to vibrate at high frequencies. This in turn drives the tool mounted on the toolholder to vibrate, thus performing the machining. Existing ultrasonic toolholders consist of a toolholder body, a transducer, and an amp. The transducer is located within the toolholder body and generates vibrations, while the amp is connected to the transducer to increase or decrease the amplitude of the transducer's vibrations.

[0003] The horn typically has a flange structure, known as a horn flange, to facilitate the installation and connection between the horn and the handle body. Existing ultrasonic handles typically assemble the horn and handle body by welding the horn flange to the handle body, or by connecting the horn flange to the handle body or gland with pins or screws arranged along the horn's axis.

[0004] Although the horn flange connected to the toolholder body in this assembly method is close to the transducer vibration node, the large contact area between the horn flange and the toolholder body or gland inevitably affects the transducer vibration at the connection point. This is especially true when the ultrasonic toolholder needs to generate large amplitudes, as the ultrasonic performance of the ultrasonic toolholder varies significantly. This connection causes significant vibration loss, seriously affecting the ultrasonic machining effect. Utility Model Content

[0005] The purpose of the utility model is to provide an ultrasonic tool holder, ultrasonic processing equipment and machine tool, which solve the problem of large vibration loss in the existing horn assembly structure by limiting the circumferential displacement and axial displacement of the horn and avoiding direct contact between the horn and the tool holder body and the pressure cover.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An ultrasonic scalpel handle comprises a scalpel body, a pressure cover, and a horn, wherein the pressure cover is connected to the front end of the scalpel body, and a plurality of first slots are provided on the circumference of the horn; a plurality of second slots corresponding to the first slots are formed at the connection between the scalpel body and the pressure cover, and the openings of the second slots are arranged toward the horn;

[0008] It also includes connecting members corresponding to the number of the first slots, one end of each connecting member extends into the first slot, and the other end extends into the corresponding second slot, and the number of the connecting members is n, n≥3, so that the amplitude rod is fixedly connected to the handle body axially and circumferentially.

[0009] In some embodiments, the first slot is arranged along the radial direction of the amplitude transformer.

[0010] In some embodiments, the front end of the hilt body is provided with a first groove portion corresponding to the number of the second slots, and the rear end of the pressure cover is provided with a plurality of second groove portions corresponding to each of the first groove portions, and each of the first groove portions and the corresponding second groove portion form the second slot.

[0011] In some embodiments, the rear end of the amplitude changing rod is provided with a flange portion protruding from its circumference, the first slot is provided on the circumference of the flange portion, and a gap is provided between the flange portion and the shank body and the pressure cover.

[0012] In some embodiments, the number n of the connectors is ≤20.

[0013] In some embodiments, the cross-sectional profile of the connector is circular, and the radius of the connector is R 连接 The length of the connecting member extending into the first slot is L1, L1≥0.3R 连接 .

[0014] In some embodiments, the length of the connecting member extending into the second slot is L2, L2 ≥ 0.5R 连接 .

[0015] In some embodiments, the outer diameter of the flange portion is L 法兰 , the diameter of the connecting piece is D, and 0.5≤L 法兰 ÷D÷n≤7.

[0016] In some embodiments, a mounting groove for accommodating the flange portion is formed at the connection between the shank body and the pressure cover, the opening of the mounting groove is arranged toward the amplitude varying rod, the opening of the second clamping groove is arranged at the bottom of the mounting groove, and the axial depth of the mounting groove is greater than the axial depth of the second clamping groove.

[0017] In some embodiments, the inner edge of the front end surface of the shank body is recessed to form a first step portion, and the inner edge of the rear end surface of the pressure cover is recessed to form a second step portion. The first step portion and the second step portion form the mounting groove. A first buffer member is provided between the first step portion and the flange portion, and a second buffer member is provided between the second step portion and the flange portion.

[0018] In some embodiments, the rear end surface of the flange portion is provided with a first clamping surface opposite to the first step portion, and the first clamping surface is inclined relative to the radial direction of the horn; the first buffer is clamped between the first clamping surface and the first step portion; and,

[0019] The front end surface of the flange portion is provided with a second clamping surface opposite to the second step portion. The second clamping surface is inclined relative to the radial direction of the horn, and the second buffer is clamped between the second clamping surface and the second step portion.

[0020] In some embodiments, along the radial direction of the horn, the first clamping surface is inclined toward the front side from inside to outside; and / or,

[0021] Along the radial direction of the horn, the second clamping surface is inclined from inside to outside toward the rear side.

[0022] In some embodiments, the angle between the first clamping surface and the radial direction of the horn is α1, and α1 is in the range of 5° to 45°; and / or,

[0023] An included angle between the second clamping surface and the radial direction of the horn is α2, and α2 is within a range of 5° to 45°.

[0024] In some embodiments, a first limiting surface is provided on the circumferential surface of the horn located on the rear side of the flange portion, and a second limiting surface is provided on the circumferential surface of the horn located on the front side of the flange portion, the first clamping surface, the first limiting surface and the first step portion cooperate to form a first installation space, and the first buffer member is disposed in the first installation space; and / or,

[0025] The second clamping surface, the second limiting surface and the second step portion cooperate to form a second installation space, and the second buffer member is disposed in the second installation space.

[0026] Based on the aforementioned ultrasonic tool handle, the present invention further provides an ultrasonic machining device, comprising the aforementioned ultrasonic tool handle.

[0027] Based on the aforementioned ultrasonic machining equipment, the present invention further provides a machine tool, comprising the aforementioned ultrasonic machining equipment.

[0028] Compared with the prior art, the ultrasonic tool holder, ultrasonic machining equipment and machine tool implemented in this application have the following beneficial effects:

[0029] The ultrasonic knife handle of the present application is provided with multiple first slots on the circumference of the amplitude transformer, and multiple second slots corresponding to the first slots are formed at the connection between the knife handle body and the pressure cover. Multiple connecting members corresponding to the number of the first slots are provided between the amplitude transformer, the knife handle body and the pressure cover, that is, the connecting members are arranged on the circumference of the amplitude transformer, and the number of connecting members is greater than or equal to 3. In this way, the amplitude transformer can be fixedly connected to the knife handle body, and the amplitude transformer is constrained by the connecting member so that the amplitude transformer and the knife handle body are axially and circumferentially connected and fixed relative to the knife handle body, avoiding rotation, swinging and movement of the amplitude transformer relative to the knife handle body, that is, the amplitude transformer has no relative movement relative to the knife handle body, and the connection between the amplitude transformer and the knife handle body and the pressure cover is realized by the connecting member. There is no direct hard contact between the amplitude transformer and the knife handle body and the pressure cover. In this way, the contact area between the amplitude transformer and the knife handle body and the pressure cover can be greatly reduced, thereby reducing the vibration loss generated by the amplitude transformer during the operation of the ultrasonic knife handle.

[0030] Moreover, the ultrasonic scalpel handle of the present application is provided with a first clamping surface and a second clamping surface, and the first clamping surface and the second clamping surface are arranged obliquely to the radial direction of the amplitude transformer, so that not only the flange portion can be subjected to uniform radial force, thereby limiting the radial freedom of the amplitude transformer and reducing the circular runout of the amplitude transformer, but also the first buffer member and the second buffer member are squeezed by the first clamping surface and the second clamping surface, which can avoid the first buffer member and the second buffer member being subjected to force in a single direction, thereby extending the service life of the buffer member.

[0031] The utility model also provides an ultrasonic processing device and a machine tool, which apply the ultrasonic tool handle and have the beneficial effects of the ultrasonic tool handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of an ultrasonic knife handle in an embodiment of the present application;

[0033] Figure 2 It is a schematic diagram of the partial structure of the ultrasonic knife handle in the embodiment of the present application;

[0034] Figure 3 yes Figure 2 A magnified view of middle A;

[0035] Figure 4 yes Figure 3 Enlarged view of middle B;

[0036] Figure 5 This is a partial schematic diagram of the cooperation between the handle body and the pressure cover in the embodiment of the present application;

[0037] Figure 6 yes Figure 5 Enlarged view of middle C;

[0038] Figure 7is a schematic diagram of the handle body in an embodiment of the present application;

[0039] Figure 8 is a schematic diagram of a gland in an embodiment of the present application;

[0040] Figure 9 It is a partial structural diagram of the amplitude transformer in the embodiment of the present application.

[0041] In the figure, 100, ultrasonic knife handle;

[0042] 1. Handle body; 10. First groove portion; 11. First step portion; 2. Accommodating cavity; 3. Transducer; 4. Amplitude transformer; 40. Flange portion; 400. First clamping surface; 401. Second clamping surface; 402. First limiting surface; 403. First installation space; 404. Second installation space; 405. Second limiting surface; 5. Pressure cover; 50. Second groove portion; 51. Second step portion; 6. First clamping slot; 7. Second clamping slot; 8. Connector; 9. Installation slot; 10a. First buffer member; 10b. Second buffer member. DETAILED DESCRIPTION

[0043] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] In the description of the present invention, it should be understood that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, it may be internal communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0045] In the description of the present invention, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship 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.

[0046] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0047] Example

[0048] refer to Figure 1-9 One embodiment of the present application provides an ultrasonic knife handle 100, which includes a knife handle body 1, wherein the end of the knife handle body 1 connected to the processing tool is the front end, and the end of the knife handle body 1 connected to the spindle is the rear end. Therefore, when the ultrasonic knife handle 100 is used to process materials, the rear end of the knife handle body 1 is connected to the spindle, so that the tool can be driven by the spindle to rotate, thereby causing the processing tool connected to the front end of the knife handle body 1 to rotate synchronously to complete the processing.

[0049] The handle body 1 is provided with a housing chamber 2 arranged axially along the handle body 1. The housing chamber 2 has an opening toward the front end, and the opening of the housing chamber 2 extends through the front end of the handle body 1, allowing objects to enter the interior of the housing chamber 2 through the opening of the housing chamber 2. A transducer 3 is disposed within the housing chamber 2 for generating ultrasonic vibrations. Of course, in some examples, the handle body 1 may further be divided into a transducer housing, with the housing chamber 2 disposed within the transducer housing.

[0050] The ultrasonic scalpel handle 100 also includes a horn 4 connected to the scalpel body 1. Specifically, one end of the horn 4 is assembled into or at the opening of the accommodating chamber 2 through the opening of the accommodating chamber 2, and the other end of the horn 4 extends outside the accommodating chamber 2. The transducer 3 is fixedly connected to the horn 4 within the accommodating chamber 2, so that the vibration generated by the transducer 3 can be transmitted to the horn 4. A pressure cap 5 is also provided at the front end of the scalpel body 1. The pressure cap 5 covers the front end of the scalpel body 1 and has an annular structure, allowing the horn 4 to pass through the pressure cap 5 and extend outside the accommodating chamber 2.

[0051] refer to Figure 2-4 、 Figure 9, a plurality of first card slots 6 with openings facing outward are provided on the circumferential surface of the amplitude converter 4, and the plurality of first card slots 6 are arranged along the circumferential side of the amplitude converter 4. Correspondingly, a plurality of second card slots 7 corresponding to the first card slots 6 are formed at the connection between the handle body 1 and the pressure cover 5, and the openings of the second card slots 7 are arranged toward the amplitude converter 4. A plurality of connecting members 8, such as pins, are provided between the amplitude converter 4 and the handle body 1 and the pressure cover 5. One end of the connecting member 8 extends into the first card slot 6, and the other end extends into the second card slot 7, so that the amplitude converter 4 is installed and fixed to the handle body 1, and the number of connecting members 8 is greater than or equal to 3, so that the amplitude converter 4 and the handle body 1 remain coaxially connected. Generally speaking, the number of connecting members 8 corresponds to the number of first card slots 6.

[0052] The connection between the connector 8 and the first slot 6 can be an interference fit, which can ensure a tight connection between the connector 8 and the horn 4. The connection between the connector 8 and the second slot 7 can be a clearance fit, which facilitates the installation and assembly of the connector 8.

[0053] It is understandable that there is no direct connection between the horn 4 and the handle body 1 or the pressure cover 5, and the circumferential and axial positions of the horn 4 are defined by the connector 8. By arranging multiple connectors 8 on the circumferential side of the horn 4, and with the multiple connectors 8 cooperating with each other, the horn 4 has no circumferential displacement relative to the handle body 1, and its axial displacement relative to the handle body 1 is limited, ensuring that the horn 4 remains stationary relative to the handle body 1. Moreover, the connector 8 is configured to maintain a coaxial connection between the horn 4 and the handle body 1 with the cooperation of the multiple connectors 8. In this way, the relative swing between the horn 4 and the handle body 1 is also limited, ensuring that the horn 4 and the handle body 1 do not move relative to each other.

[0054] In order to securely connect the horn 4 to the handle body 1 in the axial and circumferential directions of the handle body 1, the number n of connectors 8 is generally greater than or equal to three. It will be appreciated that, because the connectors 8 are distributed around the circumference of the horn 4, when the number n of connectors 8 is greater than or equal to three, these three connectors 8 define a plane, preventing the horn 4 from moving, swinging, or rotating relative to the handle body 1, thereby securing the horn 4 to the handle body 1 in the axial and circumferential directions.

[0055] It is understood that the connectors 8 are not limited to being evenly arranged around the horn 4. When the portion of the connector 8 extending into the first slot 6 and the portion of the connector 8 extending into the second slot 7 are sufficient to support the horn 4, multiple connectors 8 may also be arranged adjacent to each other around the horn 4. Of course, this arrangement still needs to ensure that the horn 4 and the handle body 1 do not move relative to each other.

[0056] By providing a connecting piece 8 between the handle body 1, the pressure cover 5 and the amplitude transformer 4, the ultrasonic handle 100 can avoid direct hard contact between the amplitude transformer 4 and the handle body 1. In this way, the ultrasonic vibration generated by the operation of the transducer 3 can be transmitted to the processing tool through the amplitude transformer 4 in a more concentrated manner, thereby reducing the vibration loss of the ultrasonic handle 100 caused by the assembly of the amplitude transformer 4.

[0057] refer to Figure 2-9 As an example of this embodiment, in order to facilitate the connection between the amplitude variable rod 4 and the handle body 1, the rear end of the amplitude variable rod 4 can be provided with a flange portion 40 protruding from its circumferential surface, and there is a gap between the flange portion 40 and the handle body 1 and the pressure cover 5. In this way, the first slot 6 is provided on the circumferential side of the flange portion 40, and the connecting member 8 is connected to the flange portion 40 to avoid direct contact between the amplitude variable rod 4 and the handle body 1 and the pressure cover 5.

[0058] Of course, the distance between the flange part 40 and the handle body 1 and the pressure cover 5 can be adjusted according to the specifications of the ultrasonic handle 100. It can be a small gap to ensure that the flange part 40 has no direct contact with the handle body 1 and the pressure cover 5. It can also make full use of the internal space of the handle body 1 to make the structural arrangement of the ultrasonic handle 100 more compact.

[0059] refer to Figure 2-4 As an example of this embodiment, the first card slot 6 is arranged along the radial direction of the amplitude transformer 4. Specifically, the notch of the first card slot 6 is arranged radially outward along the radial direction of the amplitude transformer 4, and the first card slot 6 extends radially toward the inside of the amplitude transformer 4, and the second card slot 7 is arranged opposite to the first card slot 6 and corresponds to the first card slot 6 one by one.

[0060] It is understood that the orientation of the first and second slots 6, 7 only needs to be opposite each other so that the connector 8 can extend into each of them, thereby securing the horn 4 to the handle body 1. The first and second slots 6, 7 do not necessarily need to be arranged in opposite radial directions with respect to the horn 4; however, from the perspectives of processing and stress, this arrangement is a preferred option.

[0061] In order to form the second slot 7 at the connection between the handle body 1 and the pressure cover 5, refer to Figure 2-8 As an example of this embodiment, the front end of the handle body 1 may be provided with a plurality of first grooves 10 that are recessed toward the rear end, and the rear end of the pressure cover 5 may be provided with a plurality of second grooves 50 that are recessed toward the front end. The number of the first grooves 10 corresponds to the number of the second clamping slots 7, and the number of the second grooves 50 corresponds to the number of the first grooves 10. Each first groove 10 and the corresponding second groove 50 form a second clamping slot 7.

[0062] It is understood that the second engaging groove 7 is not limited to being formed by the cooperation between the first groove portion 10 and the second groove portion 50. In other examples, the second engaging groove 7 can also be formed directly at the front end of the handle body 1, or directly at the rear end of the pressure cover 5, so that the horn 4 and the connecting member 8 can be assembled more conveniently.

[0063] The number and structural dimensions of the connectors 8 will affect the stability of the assembly of the amplitude converter 4. Considering the structural stability, the number of connectors 8 is generally greater than or equal to three. However, if the number of connectors 8 is too large, the volume of the connectors 8 themselves will be too small, which will affect the stability of the assembly of the amplitude converter 4 and may increase the contact area of ​​the connection between the amplitude converter and the handle body, resulting in more vibration losses. As an example of this embodiment, the number of connectors 8 may be n, 3≤n≤20. Moreover, in order to ensure the supporting strength of the connector 8, when the cross-sectional profile of the connector 8 is circular, the radius of the connector 8 is R 连接 The length of the connecting member 8 extending into the first slot 6 is L1, and L1 should satisfy L1 ≥ 0.3R 连接 The length of the connecting member 8 extending into the second slot 7 is L2, and L2 should satisfy L2 ≥ 0.5R 连接 .

[0064] Secondly, it is understandable that after arranging multiple connectors 8 on the circumference of the horn 4, if the total area occupied by the multiple connectors 8 is too large, the multiple connectors 8 will be arranged too densely, which is not conducive to the assembly of the horn 4. If the total area occupied by the multiple connectors 8 is too small, the multiple connectors 8 will be arranged too sparsely, making it difficult to provide sufficient supporting strength. As an example of this embodiment, the outer diameter of the flange portion 40 is L 法兰 , the diameter of the connecting piece 8 is D, and

[0065] For example, the outer diameter L of the flange portion 40 is 法兰 The outer diameter of the flange 40 is 56 mm, the diameter D of the connector 8 is 3 mm, and the number of connectors 8 is 4. This ensures that the number of connectors 8 is appropriate and sufficient support strength can be provided. In this case, the outer diameter of the flange 40 divided by the diameter of the connector 8 and the number of connectors 8 is 4.7.

[0066] It is understandable that, since the flange portion 40 protrudes from the circumference of the horn 4, the flange portion 40 needs to occupy a certain internal space of the handle body 1. In order to make the assembly of the horn 4 more compact, refer to Figure 2-8 As an example of this embodiment, a mounting groove 9 for accommodating the flange portion 40 can be formed at the connection between the shank body 1 and the pressure cover 5, the opening of the mounting groove 9 is set toward the amplitude rod 4, and the opening of the second card groove 7 is set at the bottom of the mounting groove 9, and the axial depth of the mounting groove 9 is greater than the axial depth of the second card groove 7.

[0067] The mounting groove 9 can be formed separately on the handle body 1, or separately on the pressure cover 5, or formed by the handle body 1 and the pressure cover 5. As an example of this embodiment, the inner edge of the front end surface of the handle body 1 is recessed to form a first step portion 11, and the inner edge of the rear end surface of the pressure cover 5 is recessed to form a second step portion 51. The first step portion 11 and the second step portion 51 surround the mounting groove 9, and the first step portion 11 is evenly arranged along the circumference of the handle body 1. A first buffer member 10a is provided between the first step portion 11 and the flange portion 40. The second step portion 51 is also evenly arranged along the circumference of the handle body 1. A second buffer member 10b is provided between the second step portion 51 and the flange portion 40.

[0068] The first step 11 and the second step 51 can be designed as an annular or multi-segment arc, so that the first and second buffers 10a, 10b can be arranged axially around the handle body 1 at the front end of the handle body 1 and the rear end of the gland 5. It will be appreciated that the first and second buffers 10a, 10b are primarily used to reduce noise, and the support structure of the horn 4 primarily relies on the connector 8. Therefore, the first and second step 11, 51 can be selectively arranged and are not necessarily required to be simultaneously provided.

[0069] When the first step portion 11 is configured, the front end face of the flange portion 40 may be provided with a first clamping surface 400 opposite to the first step portion 11, and the first clamping surface 400 is inclined relative to the radial direction of the amplitude transformer 4; the first buffer member 10a is clamped between the first clamping surface 400 and the first step portion 11.

[0070] Correspondingly, when the second step portion 51 is configured, the rear end face of the flange portion 40 may be provided with a second clamping surface 401 opposite to the second step portion 51, and the second clamping surface 401 is inclined relative to the radial direction of the amplitude transformer 4, and the second buffer member 10b is clamped between the second clamping surface 401 and the second step portion 51.

[0071] By providing the first clamping surface 400 and the second clamping surface 401, after the gland 5 is locked to the front end of the shank body 1, the extrusion force borne by the flange 40 is perpendicular to the first clamping surface 400 and the second clamping surface 401. Because the first clamping surface 400 and the second clamping surface 401 are tilted relative to the radial direction of the horn 4, the extrusion force borne by the flange 40 can be decomposed into a force along the axial direction of the horn 4 and a force along the radial direction of the horn 4. In this way, the flange 40 will bear a uniform radial force in the radial direction of the horn 4, thereby limiting the radial degree of freedom of the horn 4 and reducing the circular runout of the horn 4.

[0072] refer to Figure 4As an example of this embodiment, along the radial direction of the horn 4, the first clamping surface 400 is inclined from the inside to the outside toward the front side. The angle between the first clamping surface 400 and the radial direction of the horn 4 is α1, and α1 is in the range of 5° to 45°. In addition, along the radial direction of the horn 4, the second clamping surface 401 is inclined from the inside to the outside toward the rear side. The angle between the second clamping surface 401 and the radial direction of the horn 4 is α2, and α2 is in the range of 5° to 45°. In other words, the front and rear end surfaces of the flange portion 40 are inclined from the inside to the outside toward the center plane therebetween along the radial direction of the horn 4.

[0073] By limiting the direction of the first clamping surface 400 and the second clamping surface 401, the inner side of the first clamping surface 400 can be closer to the first step portion 11 than the outer side thereof, and correspondingly, the inner side of the second clamping surface 401 can also be closer to the second step portion 51 than the outer side thereof. In this way, the first buffer 10a is squeezed by the first clamping surface 400 and the second clamping surface 401 of the second buffer 10b, and the forces on the first buffer 10a and the second buffer 10b can be decomposed into two directions, namely, the force along the axial direction of the amplitude transformer 4 and the force along the axial direction of the amplitude transformer 4. The radial force of the amplitude transformer 4 is reduced, thereby avoiding the first buffer 10a and the second buffer 10b from being subjected to force in only a single direction, thereby extending the service life of the first buffer 10a and the second buffer 10b; moreover, under the restriction of the first clamping surface 400 and the second clamping surface 401, the first buffer 10a and the second buffer 10b are not prone to the problem of moving along the radial direction of the amplitude transformer 4, which can not only limit the position of the first buffer 10a and the second buffer 10b, but also reduce the assembly time of the first buffer 10a and the second buffer 10b. Furthermore, when the first buffer 10a and the second buffer 10b are squeezed, the first step portion 11 and the first clamping surface 400 can enclose a space for accommodating the first buffer 10a. Similarly, the second step portion 51 and the second clamping surface 401 can also enclose a space for accommodating the second buffer 10b. Even if the rear end surface of the flange portion 40 is flush with or in contact with the rear end of the first step portion 11 of the handle body 1, the aforementioned space still exists, and the first buffer 10a and the second buffer 10b can still be filled in the corresponding space, making it more convenient to assemble the first buffer 10a and the second buffer 10b of the ultrasonic handle 100.

[0074] refer to Figure 4As an example of this embodiment, a first limiting surface 402 is provided on the circumference of the horn 4 located behind the flange 40 to prevent the buffer from being dislodged, and a second limiting surface 405 is provided on the circumference of the horn 4 located in front of the flange 40 to prevent the buffer from being dislodged. This further increases the space for installing the first and second buffers 10a, 10b and further limits the radial displacement of the first and second buffers 10a, 10b. Based on the arrangement of the first limiting surface 402 and the second limiting surface 405, the first clamping surface 400, the first limiting surface 402, and the first step 11 cooperate to form a first installation space 403. The first buffer 10a is disposed in the first installation space 403 and is compressed by the first clamping surface 400, the first limiting surface 402, and the first step 11. Similarly, the second clamping surface 401 , the second limiting surface 405 and the second step portion 51 can cooperate to form a second installation space 404 , and the second buffer member 10b is arranged in the second installation space 404 and is pressed by the second clamping surface 401 , the second limiting surface 405 and the second step portion 51 .

[0075] Based on the aforementioned ultrasonic tool handle 100, this embodiment further provides an ultrasonic machining device, including the aforementioned ultrasonic tool handle 100. Also, based on the aforementioned ultrasonic machining device, this embodiment further provides a machine tool, including the aforementioned ultrasonic machining device.

[0076] In summary, the ultrasonic scalpel handle 100 provided in this embodiment is provided with a plurality of first slots 6 on the circumference of the amplitude transformer 4, and a plurality of second slots 7 corresponding to the first slots 6 are formed at the connection between the shank body 1 and the pressure cover 5. The amplitude transformer 4 is connected to the shank body 1 through a connecting member 8. The circumferential side of the amplitude transformer 4 is constrained by the connecting member 8, so that the circumferential displacement and axial displacement of the amplitude transformer 4 relative to the shank body 1 are both limited. Moreover, the connecting member 8 can keep the amplitude transformer 4 and the shank body 1 coaxially connected, thereby avoiding the amplitude transformer 4 from swinging relative to the shank body 1. Moreover, the connection between the amplitude transformer 4 and the shank body 1 and the pressure cover 5 is realized through the connecting member 8. There is no direct hard contact between the amplitude transformer 4 and the shank body 1 and the pressure cover 5. In this way, the contact area between the amplitude transformer 4 and the shank body 1 and the pressure cover 5 can be greatly reduced, thereby reducing the vibration loss generated by the amplitude transformer 4 during the operation of the ultrasonic scalpel handle 100.

[0077] Moreover, the ultrasonic scalpel handle 100 of the present application, by limiting the positional relationship between the flange portion 40 and the connecting member 8, ensures that the connecting member 8 can limit the circumferential rotation, axial runout, and radial swing of the horn 4 relative to the shank body 1, so that the horn 4 remains coaxially connected to the shank body 1, thereby ensuring the processing quality of the ultrasonic scalpel handle 100. In addition, the ultrasonic scalpel handle 100 of the present application, by providing a first clamping surface 400 and a second clamping surface 401, and making the first clamping surface 400 and the second clamping surface 401 inclined to the radial direction of the horn 4, not only allows the flange portion 40 to receive a uniform radial force, thereby limiting the radial degree of freedom of the horn 4 and reducing the circular runout of the horn 4, but also, the buffer is squeezed by the first clamping surface 400 and the second clamping surface 401, which can avoid the first buffer 10a and the second buffer 10b from being subjected to force in a single direction, thereby extending the service life of the first buffer 10a and the second buffer 10b. This embodiment further provides an ultrasonic machining device, which applies the aforementioned ultrasonic tool handle 100 and has the beneficial effects of the aforementioned ultrasonic tool handle 100 .

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic knife handle, characterized in that: The knife comprises a handle body, a pressure cover and a horn, wherein the pressure cover is connected to the front end of the handle body, and a plurality of first slots are provided on the circumference of the horn; a plurality of second slots corresponding to the first slots are formed at the connection between the handle body and the pressure cover, and the openings of the second slots are arranged toward the horn; It also includes connecting members corresponding to the number of the first slots, one end of each connecting member extends into the first slot, and the other end extends into the corresponding second slot, and the number of the connecting members is n, n≥3, so that the amplitude rod and the handle body are connected and fixed in the axial and circumferential directions of the handle body.

2. The ultrasonic knife handle according to claim 1, characterized in that: The first clamping groove is arranged along the radial direction of the amplitude transformer.

3. The ultrasonic knife handle according to claim 1, characterized in that: The front end of the hilt body is provided with first groove portions corresponding to the number of the second slots, and the rear end of the pressure cover is provided with multiple second groove portions corresponding to each of the first groove portions. Each of the first groove portions and the corresponding second groove portion form the second slot.

4. The ultrasonic knife handle according to claim 1, characterized in that: The cross-sectional profile of the connecting member is circular, and the radius of the connecting member is R 连接 The length of the connecting member extending into the first slot is L1, L1≥0.3R 连接 .

5. The ultrasonic knife handle according to claim 1, characterized in that: The cross-sectional profile of the connecting member is circular, and the radius of the connecting member is R 连接 The length of the connecting member extending into the second slot is L2, L2 ≥ 0.5R 连接 .

6. The ultrasonic knife handle according to claim 1, characterized in that: The number n of the connecting parts is ≤20.

7. The ultrasonic knife handle according to claim 1, characterized in that: The rear end of the amplitude changing rod is provided with a flange portion protruding from its circumference, the first clamping groove is provided on the circumference of the flange portion, and a gap is provided between the flange portion and the shank body and the pressure cover.

8. The ultrasonic knife handle according to claim 7, characterized in that: The outer diameter of the flange is L 法兰 , the diameter of the connecting piece is D, and 0.5≤L 法兰 ÷D÷n≤7.

9. The ultrasonic knife handle according to claim 7, characterized in that: A mounting groove for accommodating the flange portion is formed at the connection between the shank body and the pressure cover, the opening of the mounting groove is arranged toward the amplitude rod, and the opening of the second clamping groove is arranged at the bottom of the mounting groove, and the axial depth of the mounting groove is greater than the axial depth of the second clamping groove.

10. The ultrasonic knife handle according to claim 9, characterized in that: The inner edge of the front end surface of the shank body is recessed to form a first step portion, and the inner edge of the rear end surface of the pressure cover is recessed to form a second step portion. The first step portion and the second step portion form the mounting groove. A first buffer member is provided between the first step portion and the flange portion, and a second buffer member is provided between the second step portion and the flange portion.

11. The ultrasonic knife handle according to claim 10, characterized in that: The rear end surface of the flange portion is provided with a first clamping surface opposite to the first step portion, and the first clamping surface is inclined relative to the radial direction of the horn; the first buffer is clamped between the first clamping surface and the first step portion; and, The front end surface of the flange portion is provided with a second clamping surface opposite to the second step portion. The second clamping surface is inclined relative to the radial direction of the horn, and the second buffer is clamped between the second clamping surface and the second step portion.

12. The ultrasonic knife handle according to claim 11, characterized in that: Along the radial direction of the horn, the first clamping surface is inclined toward the front side from inside to outside; and / or, Along the radial direction of the horn, the second clamping surface is inclined rearward from inside to outside.

13. The ultrasonic knife handle according to claim 11, characterized in that: The angle between the first clamping surface and the radial direction of the horn is α1, and α1 is in the range of 5° to 45°; and / or, An included angle between the second clamping surface and the radial direction of the horn is α2, and α2 is within a range of 5° to 45°.

14. The ultrasonic knife handle according to claim 11, characterized in that: A first limiting surface is provided on the circumferential surface of the horn located on the rear side of the flange portion, and a second limiting surface is provided on the circumferential surface of the horn located on the front side of the flange portion, the first clamping surface, the first limiting surface and the first step portion cooperate to form a first installation space, and the first buffer member is disposed in the first installation space; and / or, The second clamping surface, the second limiting surface and the second step portion cooperate to form a second installation space, and the second buffer member is disposed in the second installation space.

15. An ultrasonic processing device, characterized in that: The ultrasonic knife handle comprises any one of claims 1-14.

16. A machine tool, characterized in that: Including the ultrasonic machining equipment according to claim 15.

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