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 body, a transducer assembly and a fixing assembly, the fixing assembly is provided with an air inlet channel communicated with the external environment, the air inlet channel is communicated with a cooling branch of a conductive assembly, and the conductive assembly is cooled. The air inlet channel is further communicated with the energy converter cooling branch to cool the energy converter. According to the ultrasonic knife handle, the transducer and the conductive assembly are cooled through the transducer cooling branch and the conductive assembly cooling branch, the electric brush and the conductive assembly which are seriously heated can be fully cooled, and instability of electric transmission caused by too high rotating speed is prevented.

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 generally involves applying voltage or current to an ultrasonic tool holder through an ultrasonic generator, causing the ultrasonic vibration element therein to vibrate at a high frequency, and driving the tool mounted on the ultrasonic tool holder to vibrate, thereby performing machining.

[0003] At present, the power supply methods of ultrasonic knife handles mainly include contact type and non-contact type. Among them, the contact type generally uses slip rings for power supply. However, in the process of the brush and the slip ring rotating to form an electrical connection, a large amount of heat and powder generated by contact wear will be generated. In addition, the transducer of the ultrasonic knife handle is also prone to heat during high power output. These factors will affect the ultrasonic knife handle and cause it to fail to work properly. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrasonic tool handle, ultrasonic processing equipment and machine tool. By configuring a cooling structure for the ultrasonic tool handle, components such as slip rings, brushes, and transducers can dissipate heat in time, ensuring that these components are in an ideal operating environment, so as to solve the problem of heating during operation of the existing ultrasonic tool handle.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ultrasonic knife handle, comprising:

[0007] Knife body;

[0008] A transducer housing is connected to the blade body, wherein an inner cavity for accommodating the transducer is provided in the transducer housing, the transducer is electrically connected to the conductive component, and the inner cavity is communicated with an external space thereof to form a transducer cooling branch;

[0009] A fixing component, wherein the fixing component is rotatably sleeved on the outer peripheral side of the blade body or the transducer housing to form a cavity, wherein the cavity is used to accommodate the conductive component, and the cavity is communicated with the external space thereof to form a conductive component cooling branch; and

[0010] The fixing component is provided with an air inlet passage connected to an external cooling air source, and the air inlet passage is respectively connected to the conductive component cooling branch and the transducer cooling branch.

[0011] In some embodiments, the fixing assembly is rotatably connected to the transducer housing, and the fixing assembly includes an upper cover, an outer cover, and a lower cover, wherein:

[0012] The lower cover is sleeved on the transducer housing through a bearing member, the outer cover is arranged between the upper cover and the lower cover, and the front side of the outer cover is connected to the lower cover, and the rear side of the outer cover is connected to the upper cover to form the cavity.

[0013] In some embodiments, the fixing component includes an airway pressure ring; the airway pressure ring is arranged on the outer peripheral side of the conductive component and close to the transducer housing, so that a bypass air path is formed between the airway pressure ring and the transducer housing, one end of the bypass air path is connected to the air inlet channel, and the other end of the bypass air path is connected in parallel with the conductive component cooling branch and the transducer cooling branch, so that the airflow can enter the transducer cooling branch and the conductive component cooling branch respectively.

[0014] In some embodiments, the fixing component is provided with a first channel and a lateral channel, and a first through hole is provided on the side wall of the outer shell, the first channel is connected to an external cooling air source, the diversion air path is formed between the inner ring side of the airway pressure ring and the transducer shell, the outer ring side of the airway pressure ring is provided with a pressure ring air path connected to the diversion air path, the lateral channel is connected to the pressure ring air path through the first through hole, and the first channel, the lateral channel, the first through hole and the pressure ring air path are connected in sequence to form the air inlet channel.

[0015] In some embodiments, the upper cover body extends into the front side of the blade body along the radial direction of the blade body, and the outer side wall of the blade body is provided with a flange extending toward the front side; the upper cover body is provided with a groove arranged around the blade body, and the flange extends into the upper groove to form an upper air path, and the cavity is connected to the external environment through the upper air path.

[0016] In some embodiments, a bearing member connected to the fixing assembly is disposed on the outer peripheral side of the transducer housing, a gap is provided between the bearing member and the transducer housing, and,

[0017] The transducer housing is provided with a first transducer branch, a second transducer branch and a third transducer branch, and the first transducer branch, the second transducer branch, the gap, the third transducer branch and the inner cavity are sequentially connected to form the transducer cooling branch, wherein:

[0018] The first branch of the transducer is in communication with the air inlet passage.

[0019] In some embodiments, a transducer spiral air path is provided on the outer peripheral side of the transducer housing, and the transducer spiral air path forms the gap and connects the second branch of the transducer with the third branch of the transducer.

[0020] In some embodiments, it also includes a variable amplitude rod fixedly connected to the transducer, the flange portion of the variable amplitude rod is connected to the inner wall of the transducer housing, and a second through hole is opened on the flange portion, and the second through hole connects the inner cavity with the external environment.

[0021] In some embodiments, the fixing component is provided with a hollow guide air nozzle, one end of which extends into the air inlet passage, and the guide air nozzle can move in the air inlet passage along the axial direction of the blade body, and the other end of the guide air nozzle can be connected to an external cooling air source to supply cooling airflow to the air inlet passage.

[0022] In some embodiments, an air nozzle elastic member is provided between the guide air nozzle and the fixed assembly, one end of the air nozzle elastic member is connected to the air inlet channel, and the other end extends into the guide air nozzle, so that when the ultrasonic knife handle is assembled in place, the guide air nozzle is driven by the elastic force of the air nozzle elastic member to press against the supply end of the external cooling air source.

[0023] Based on the aforementioned ultrasonic tool handle, the utility model also provides an ultrasonic processing device, including the aforementioned ultrasonic tool handle, and also including a transmitting seat, the transmitting seat is used to install a power supply side connection end that can be electrically connected to the power consumption side connection end, and the transmitting seat is provided with a second channel that can be connected to the air intake channel, and the second channel can be connected to an external cooling air source to supply cooling airflow to the air intake channel.

[0024] In some embodiments, the ultrasonic knife handle also includes a hollow guide air nozzle, one end of which extends into the air inlet channel, and the guide air nozzle can move in the air inlet channel along the axial direction of the knife body, and the other end of the guide air nozzle can extend into the second channel to connect the air inlet channel with the second channel.

[0025] In some embodiments, an air core that can move along the axial direction of the blade body is further provided in the second channel, and an air core channel that runs through to the front end of the air core is opened inside the air core, and the air core channel is connected to the second channel, and the front end of the air core can be pressed against the rear end of the guide air nozzle to achieve the connection between the air core channel and the air inlet channel.

[0026] In some embodiments, a step portion surrounding the air core is provided in the second channel, the air core passes through the step portion, and an air core elastic member is provided between the air core and the step portion, so that when the ultrasonic knife handle is assembled in place, the air core is pressed tightly against the guide air nozzle under the elastic force of the air core elastic member.

[0027] In some embodiments, an air inlet hole is provided on the side wall of the air core near the rear end thereof, the air inlet hole is communicated with the air core channel and with the second channel; and,

[0028] A sealing groove is arranged at the rear side of the air inlet hole, a sealing ring is filled in the sealing groove, and the sealing groove is sealed with the rear side end surface of the step portion through the sealing ring.

[0029] Based on the aforementioned ultrasonic machining equipment, the utility model further provides a machine tool, comprising a machine tool body, a spindle arranged on the machine tool body and the aforementioned ultrasonic machining equipment, wherein the transmitting seat is installed on the spindle.

[0030] Compared with the prior art, the ultrasonic tool holder, ultrasonic processing equipment and machine tool implemented by the utility model have the following beneficial effects:

[0031] The ultrasonic knife handle of the utility model is provided with a transducer cooling air path and a conductive component cooling air path, and the transducer and the conductive component are cooled by the transducer cooling branch and the conductive component cooling branch. Compared with the central cooling design adopted by the existing ultrasonic knife handle, the cooling air path structure of the ultrasonic knife handle is simple, and can fully cool the brushes and conductive components with serious heat generation to prevent the instability of electrical transmission caused by excessive rotation speed, and can also blow out the dust generated by the wear of the conductive component, further reducing the heat generation of the conductive component, and can also cool the transducer at the same time. Since the two cooling branches are connected in parallel, the dust in the conductive component cooling branch is directly blown out, which prevents the dust from entering the transducer cooling branch and affecting the transducer.

[0032] In addition, the cooling gas path of the ultrasonic tool handle can effectively prevent the problem of component damage caused by errors in the matching between the transmitting seat and the fixing component by adding a guide gas nozzle to match the gas nozzle elastic member. The utility model also provides an ultrasonic processing device and a machine tool, which use the above ultrasonic tool handle and have the beneficial effects of the above ultrasonic tool handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of an ultrasonic knife handle in an embodiment of the utility model;

[0034] Figure 2 This is a partial structural sectional view of the ultrasonic knife handle in the embodiment of the utility model;

[0035] Figure 3 yes Figure 2 A magnified view of middle;

[0036] Figure 4 yes Figure 3 Enlarged view of middle C;

[0037] Figure 5Schematic diagram of the airflow path of the ultrasonic knife handle in the embodiment of the utility model;

[0038] Figure 6 It is a schematic diagram of the handle body in the embodiment of the utility model;

[0039] Figure 7 It is a cross-sectional schematic diagram of the handle body in the embodiment of the utility model;

[0040] Figure 8 is a schematic diagram of a transducer housing in an embodiment of the utility model;

[0041] Fig. 9 is a cross-sectional schematic diagram of a transducer housing in an embodiment of the utility model;

[0042] Fig.10 It is a schematic diagram of the connection between the handle body and the transducer housing in the embodiment of the utility model;

[0043] Fig.11 It is a schematic diagram of another implementation method of the handle body in the embodiment of the utility model;

[0044] Fig.12 is a schematic diagram of another implementation of the transducer housing in the embodiment of the utility model;

[0045] Fig.13 It is a schematic diagram of one implementation method of the conductive connecting member in the embodiment of the utility model;

[0046] Fig.14 is a schematic diagram of an ultrasonic machining device in an embodiment of the present utility model;

[0047] Fig.15 is a schematic diagram of an air core in an embodiment of the utility model;

[0048] Fig.16 is a cross-sectional schematic diagram of an air core in an embodiment of the utility model;

[0049] Fig.17 It is a partial structural sectional view of the ultrasonic processing equipment in the embodiment of the utility model;

[0050] Fig.18 yes Fig.17 Enlarged view of middle D;

[0051] Fig.19 It is a schematic diagram of the horn in the embodiment of the utility model;

[0052] Fig. 20 is a schematic diagram of another perspective of the ultrasonic processing device in the embodiment of the utility model;

[0053] Fig.21yes Fig. 20 Sectional view of EE;

[0054] Fig. 22 yes Fig.21 Enlarged view of middle F;

[0055] Fig.23 This is a schematic diagram of the upper cover body in the embodiment of the utility model;

[0056] Fig.24 It is a schematic diagram of an upper slider in an embodiment of the utility model;

[0057] Fig.25 It is a schematic diagram of the lower slider in the embodiment of the utility model;

[0058] Fig.26 It is a schematic diagram of a slider cover body in an embodiment of the present utility model.

[0059] In the figure, 100, ultrasonic tool holder; 200, ultrasonic processing equipment;

[0060] 1. Blade body; 1a. First protrusion; 11a. First mounting hole; 110a. Limiting ring; 1b. Main body; 10b. Flange structure; 11b. Second limiting groove; 10c. Flange; 2a. Transducer housing; 20a. Inner cavity; 21a. Housing; 210a. Mounting channel; 22a. Second protrusion; 220a. First limiting groove; 23a. Step hole; 230a. Large diameter section; 231a. Small diameter section; 24a. Second mounting hole; 2c. Transducer; 3. Conductive assembly; 3a. Conductive ring; 30a. Rear conductor; 31a. Front conductor; 3b. Conductive mounting portion; 30b, mounting groove; 31b, receiving groove; 3c, conductive voltage cover portion; 3d, conductive connector; 30d, insulating mounting seat; 31d, conductive matching member; 32d, elastic conductive sheet; 3e, conductive member; 4, mounting portion; 5, fixing assembly; 5a, cavity; 5b, upper cover body; 50b, upper groove; 51b, positioning groove; 5c, outer shell; 5d, lower cover body; 5e, receiving seat; 6, brush fixing frame; 7, bearing pressure cover; 8, first bearing; 9, bearing pressing portion; 10, annular groove; 11, limit block; 12, end cover block; 13, sealing ring; 1 4. Transducer cooling branch; 14a. Transducer first branch; 14b. Transducer second branch; 14c. Transducer third branch; 14d. Transducer fourth branch; 15. Conductive component cooling branch; 15a. Upper air path; 16. Airway pressure ring; 16a. Air inlet channel; 16b. Pressure ring air path; 17. Diverter air path; 18. Transducer spiral air path; 19. Guide air nozzle; 20. Air nozzle elastic member; 21. Positioning assembly; 21b. Lower slider; 210b. Second inclined surface; 211b. Snap-in groove; 21c. Top block; 210c. First guide section; 211c. First guide section Two guide sections; 21d, slider cover; 210d, guide hole; 21e, upper slider; 210e, first inclined surface; 211e, guide part; 212e, lower notch; 22, positioning groove; 23, positioning elastic member; 24, launching seat; 25, power supply side contact; 26, power consumption side contact; 27, second channel; 27a, step part; 28, air core; 28a, air core airway; 28b, air inlet hole; 28c, sealing groove; 29, air core elastic member; 30, locking member; 31, collar; 32, block; 33, amplitude transformer; 301a, flange part; 300a, second through hole. DETAILED DESCRIPTION

[0061] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0062] In the description of the present utility model, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can 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 can 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 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 an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0063] 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.

[0064] In the description of the present invention, it should be understood that the terms "first" and "second" are used in the present invention for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0065] Example

[0066] refer to Figure 1-26 The embodiment of the utility model provides an ultrasonic knife handle 100, which includes a knife body 1, a transducer assembly and a conductive assembly 3, wherein the end side of the ultrasonic knife handle 100 connected to the processing tool is the front side, and the transducer assembly includes a transducer housing 2a and a transducer 2b, and an inner cavity 20a is provided in the transducer housing 2a to accommodate the transducer 2c. The knife body 1 is detachably connected to the transducer housing 2a, and a mounting portion 4 is formed. The knife body 1 is connected to the transducer housing 2a, that is, the knife handle body.

[0067] It is understandable that the transducer 2b generally includes a piezoelectric vibrator for converting electromagnetic energy into mechanical energy, and the horn 33 installed at the front end is a component for expanding the mechanical amplitude. Generally speaking, the piezoelectric vibrator is installed in the inner cavity 20a, and the horn 33 extends from the inner cavity 20a to the front side of the transducer assembly and is connected to the processing tool. The specific setting of the transducer 2b can be specifically set according to the application scenario of the ultrasonic knife handle 100 and the target to be processed, which will not be repeated here.

[0068] The performance of the transducer assembly is closely related to the size of the transducer 2b, such as the size of the piezoelectric vibrator. The piezoelectric vibrator is installed inside the inner cavity 20a of the transducer housing 2a. Therefore, the size of the inner cavity 20a inside the transducer housing 2a will generally reflect the performance of the transducer assembly. Changing the size of the inner cavity 20a will affect the performance of the transducer assembly, such as the output power.

[0069] The conductive component 3 is sleeved on the mounting portion 4. As an example of this embodiment, the conductive component 3 includes a conductive ring 3a electrically connected to the transducer 2b in the transducer housing 2a, and the outer diameter of the conductive ring 3a is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion 4. In this way, the conductive ring 3a does not need to be arranged on the outer peripheral side of the transducer housing 2a, and the outer diameter of the conductive ring 3a can be effectively reduced. When other conductive elements that can match the conductive ring 3a slide relatively on the outer peripheral side of the conductive ring 3a, at the same speed, relative to the conductive ring directly mounted on the outer periphery of the transducer housing, in the scheme of the present application, the linear speed of the conductive ring 3a sleeved on the mounting portion 4 can be significantly reduced, and then the conductive ring 3a can work at a relatively high speed, and reduce the friction heat generated by the conductive ring 3a, thereby increasing the service life of the conductive component 3. For example, for an HSK63 ultrasonic knife handle, its rotation speed can be as high as 3000-4000r / min, and the life of the conductive component 3 is better maintained.

[0070] Moreover, the conductive component 3 is sleeved on the mounting portion 4 formed by the detachable connection between the blade body 1 and the transducer housing 2a. With the help of the disassembly of the blade body 1 and the transducer housing 2a, a small-sized integrated conductive ring can be directly sleeved on the mounting portion 4 without a split conductive ring structure. In this way, it is possible to avoid the problem that there is a gap between the two half rings of the split conductive ring, the magnetic resistance is large, and the cross-section needs to be coated with silver or other materials with good conductive properties to enhance the conductivity, and the roughness of the cross-section needs to be ensured, etc., which has many usage restrictions and poor electrical transmission performance. Moreover, with the detachable blade body 1 and the transducer housing 2a, a new conductive component 3 can be replaced when the performance of the conductive component 3 decreases, thereby further extending the service life of the ultrasonic knife handle 100.

[0071] It should be noted that, in order to reduce the linear velocity of the conductive ring 3a and not affect the performance of the transducer, the mounting portion 4 formed by the connection between the blade body 1 and the transducer housing 2a is located at a different position from the inner cavity 20a in the axial direction of the ultrasonic knife handle 100. In this way, when the conductive ring 3a adjusts the size according to the functional requirements, it will not affect the size of the transducer 2b disposed in the inner cavity 20a, ensuring that the power of the transducer 2b can meet the functional requirements of the ultrasonic knife handle 100.

[0072] It is understandable that there are various ways to realize the detachable connection between the blade body 1 and the transducer housing 2a, and therefore, there are various ways to form the mounting portion 4. The mounting portion 4 only needs to ensure that the blade body 1 and the transducer housing 2a can be detachably connected, and the place where the blade body 1 and the transducer housing 2a are connected to each other is the mounting portion 4. For example, the mounting portion 4 can be formed by the detachable connection between the part of the blade body 1 with the part of the transducer housing 2a with the integral structure. In this case, the mounting portion 4 is both a part of the blade body 1 and a part of the transducer housing 2a. Alternatively, the mounting portion 4 can also be formed by the connection of a structure detachably connected to the blade body 1 and a structure detachably connected to the transducer housing 2a, or a single structure detachably connected to the blade body 1 and the transducer housing 2a, respectively. In this case, the mounting portion 4 is a connection structure independent of the blade body 1 and the transducer housing 2a. Of course, the mounting portion 4 can also be a part of the integral structure of the blade body 1 or a part of the integral structure of the transducer housing 2a. The blade body 1 and the transducer housing 2a can be detachably connected to each other by connecting the part of the integral structure of the blade body 1 to the transducer housing 2a, or connecting the part of the integral structure of the transducer housing 2a to the blade body 1.

[0073] It is understandable that, since the conductive ring 3a is sleeved on the mounting portion 4, in order to ensure that the outer diameter of the conductive ring 3a can be smaller than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion, the outer diameter of the mounting portion 4 itself is generally smaller than the outer diameter of the transducer housing 2a. Of course, the outer diameter of a part of the mounting portion 4 can also be made smaller than the outer diameter of the transducer housing 2a by making the outer diameter of the connecting end surface of the blade body 1 and the transducer housing 2a smaller than the outer diameter of the transducer housing 2a, so that the outer diameter of the conductive ring 3a installed in this area is smaller than the outer diameter of the transducer housing 2a.

[0074] The mounting portion 4 may be provided with an installation space, such as an annular groove, and of course, may also be provided with an annular groove together with the adjacent transducer housing 2a and the blade body 1, so that the conductive component 3 may be sleeved and installed, and ensure that the outer diameter of the conductive ring 3a of the conductive component 3 is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion 4.

[0075] Considering that the blade body 1 is often connected and driven by the main shaft, in the ultrasonic blade handle 100, the blade body 1 is often configured with a flange structure 10b for abutting against the end of the main shaft. The flange structure 10b is generally compatible with the main shaft and can also reflect the operating performance of the blade body 1. Therefore, when the outer diameter of the conductive ring 3a is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion, the outer diameter of the conductive ring 3a can also be made less than or equal to the outer diameter of the flange structure 10b of the blade body 1.

[0076] The ultrasonic knife handle 100 of this embodiment is further described below by taking the example that the integral structure of the knife body 1 and the integral structure of the transducer housing 2 a are connected to form the mounting portion 4 .

[0077] As an example of this embodiment, the transducer housing 2a includes a housing portion 21a and a second protrusion portion 22a arranged in sequence along its own axial direction, the housing portion 21a is located on the front side of the second protrusion portion 22a, and an inner cavity 20a is provided in the housing portion 21a to accommodate the transducer 2b.

[0078] The transducer housing 2a is an axial structure, wherein the outer diameter of the second protrusion 22a is smaller than the outer diameter of the housing portion 21a, so that the second protrusion 22a forms a structure protruding from the rear side of the housing portion 21a. In this way, the inner cavity 20a is always arranged in the housing portion 21a, and the size change of the second protrusion 22a will not affect the size of the inner cavity 20a, so that the performance of the transducer 2b can be guaranteed. Of course, in other examples, the housing portion 21a and the second protrusion 22a of the transducer housing 2a can also be distinguished according to other standards, such as using the boundary of the inner cavity 20a as the dividing line between the housing portion 21a and the second protrusion 22a. At this time, the inner cavity 20a is still arranged in the housing portion 21a, and the size change of the second protrusion 22a still does not affect the size of the inner cavity 20a.

[0079] The blade body 1 is coaxially arranged with the transducer housing 2a, and the blade body 1 has a first protrusion 1a and a main body 1b arranged in sequence along its own axial direction, the first protrusion 1a is located at the front side of the main body 1b, the outer diameter of the first protrusion 1a is smaller than the outer diameter of the main body 1b, and the first protrusion 1a and the second protrusion 22a are detachably connected, thereby making the blade body 1 detachably connected with the transducer housing 2a, and forming the mounting portion 4 by utilizing the connection between the first protrusion 1a and the second protrusion 22a.

[0080] The blade body 1 is a shaft structure, the first raised portion 1a of the blade body 1 is connected to the second raised portion 22a, and the main body 1b of the blade body 1 is used to connect the spindle. Therefore, when the ultrasonic blade handle 100 is used to process materials, the main body 1b of the blade body 1 is connected to the spindle, so that the blade body 1 can be driven by the spindle to rotate, thereby making the transducer assembly and the processing tool connected to the first raised portion 1a of the blade body 1 rotate synchronously to perform the processing action.

[0081] It is understandable that the first raised portion 1a and the main body portion 1b divided by the blade body 1, and the housing portion 21a and the second raised portion 22a divided by the transducer housing 2a are only used to illustrate the detachable connection between the blade body 1 and the transducer housing 2a, and do not limit the need to set a clear boundary structure on the blade body 1 and the transducer housing 2a, so that the blade body 1 and the transducer housing 2a form a two-stage structure. In specific applications, the structure of the blade body 1 and the transducer housing 2a can adopt an integrated connection structure or a segmented structure according to the application scenario, and the two structures do not necessarily have a two-stage structure division design.

[0082] Considering the mechanical strength of the ultrasonic knife handle 100 and the conduction efficiency of the conductive ring 3a, when the conductive ring 3a is sleeved on the mounting portion 4, the outer diameter of the conductive ring 3a is greater than 50% of the outer diameter of the transducer housing 2a adjacent to the mounting portion 4. The size of the conductive ring 3a will affect the conduction efficiency of the conductive ring 3a. If the size of the conductive ring 3a is too small, it will mainly cause the strength of the ultrasonic knife handle 100 to decrease, and the efficiency of the electrical signal received by the transducer 2b will also be affected, resulting in the transducer 2b being unable to work according to the set power, or the axial length of the conductive ring 3a needs to be extended to increase the contact area with the brush and increase the transmission efficiency, but it will cause the axial size of the ultrasonic knife handle 100 to be larger, resulting in a large loss of ultrasonic performance. By limiting the lower limit of the outer diameter of the conductive ring 3a, the mechanical strength of the ultrasonic knife handle 100 is guaranteed without affecting energy transmission.

[0083] It should be noted that the aforementioned transducer housing 2a adjacent to the mounting portion 4 or the blade body 1 adjacent to the mounting portion 4 refers to the portion of the transducer housing 2a located beside the mounting portion 4 or the portion of the blade body 1 located beside the mounting portion 4 in the axial direction of the blade body 1.

[0084] refer to Figure 1-13As an example of this embodiment, the ultrasonic knife handle 100 further includes a fixing component 5, which is rotatably sleeved on the outer peripheral side of the transducer housing 2a and rotatably connected to the transducer housing 2a, so that a part of the transducer housing 2a and a part of the knife body 1 can both rotate relative to the fixing component 5. In addition, a cavity 5a for accommodating the conductive component 3 is provided in the fixing component 5, so that the conductive ring 3a can be wrapped by the fixing component 5, and a certain protection is provided by the fixing component 5. Of course, the fixing component 5 can also be rotatably sleeved on the outer peripheral side of the knife body 1 and rotatably connected to the knife body 1 to form a cavity 5a, which can also enable a part of the transducer housing 2a and a part of the knife body 1 to both rotate relative to the fixing component 5.

[0085] The first bearing 8 may be provided on the outer peripheral side of the transducer housing 2a, so that the inner ring of the first bearing 8 is sleeved on the housing portion 21a of the transducer housing 2a, and the fixing assembly 5 is connected to the outer ring of the first bearing 8, so that the transducer housing 2a can rotate relative to the fixing assembly 5, and thus, the blade body 1 connected to the second protrusion 22a can also rotate relative to the fixing assembly 5. Of course, in other examples, the bearing may also be provided between the blade body 1 and the fixing assembly 5, or the bearing may be provided between the blade body 1 and the fixing assembly 5, and between the transducer housing 2a and the fixing assembly 5, so that the blade body 1 and the transducer housing 2a can rotate relative to the fixing assembly 5, and realize the rotation connection with the fixing assembly 5.

[0086] In the above example, a brush holder 6 is provided in the cavity 5a, and a brush (not shown in the figure) is mounted on the brush holder 6 and is slidably matched with the conductive component 3. The external power source extends into the cavity 5a through the lead through the fixing component 5 and is connected to the brush holder 6. The brush on the brush holder 6 is slidably connected with the conductive ring 3a, and contacts with the conductive ring 3a of the conductive component 3 to form a path, and the conductive ring 3a is electrically connected with the transducer 2b, so that the transducer 2b is connected with the external power source, and the wired transmission of the ultrasonic signal is completed.

[0087] refer to Figure 1-13 In the above example, the fixing assembly 5 includes an upper cover 5b, an outer shell 5c and a lower cover 5d, wherein the outer shell 5c is disposed between the upper cover 5b and the lower cover 5d, and the front side of the outer shell 5c is connected to the lower cover 5d, and the rear side of the outer shell 5c is connected to the upper cover 5b, forming a cavity 5a. In addition, the upper cover 5b is located beside the mounting portion 4 and is disposed on the outer peripheral side of the blade body 1, and the lower cover 5d is also located beside the mounting portion 4 and is sleeved on the outer peripheral side of the transducer housing 2a, so that the cavity 5a formed by the lower cover 5d, the outer shell 5c and the upper cover 5b in sequence can accommodate the mounting portion 4, so that the conductive assembly 3 is built into the cavity 5a.

[0088] The lower cover 5d is sleeved on the outer ring of the first bearing 8 and extends to the front side of the first bearing 8. The inner ring of the first bearing 8 is connected to the transducer housing 2a, so that the transducer housing 2a can rotate relative to the fixed assembly 5. The fixed assembly 5 also includes a bearing pressing portion 9 located in the cavity 5a. The bearing pressing portion 9 is pressed on the rear side of the first bearing 8. The bearing pressing portion 9 is locked and connected with the lower cover 5d, so that the lower cover 5d is tightly mounted on the outer ring of the first bearing 8.

[0089] It should be noted that, generally speaking, the lower cover body 5d has no direct contact with the housing portion 21a. The significance of the setting of the lower cover body 5d and the bearing pressing portion 9 is that the limiting of the first bearing 8 relies on the flange on the outer periphery of the transducer housing 2a and the bearing pressure cover 7 on the top of the first bearing 8. The bearing pressure cover 7 is installed on the transducer housing 2a and is tightly pressed against the inner ring of the first bearing 8. The bearing pressing portion 9 is installed on the outer ring of the first bearing 8 and is locked with the lower cover body 5d, so that the lower cover body 5d and the outer ring of the first bearing 8 are fixed.

[0090] In order to fix the conductive component 3 in the axial direction of the blade body 1, the mounting portion 4 can form a groove structure with the adjacent blade body and the transducer housing for the installation of the conductive component 3. Figure 1-13 As an example of this embodiment, the outer diameter of the second protrusion 22a is smaller than the outer diameter of the shell part 21a, and the outer diameter of the first protrusion 1a is smaller than the outer diameter of the body part 1b, so that after the second protrusion 22a is connected with the first protrusion 1a and forms the mounting part 4, the outer peripheral surface of the mounting part 4, the front end surface of the body part 1b, and the rear end surface of the shell part 21a jointly form an annular groove 10, and the annular groove 10 is arranged along the circumference of the blade body 1, and is provided with an opening toward the outside of the blade body 1, and the annular groove 10 is recessed in the outer peripheral side of the body part 1b and the shell part 21a adjacent to the annular groove 10. The conductive ring 3a is arranged in the annular groove 10 and is electrically connected to the transducer 2b, so that the position of the conductive ring 3a in the axial direction of the blade body 1 is limited by the annular groove 10.

[0091] It is understandable that, since the annular groove 10 is arranged on the mounting portion 4 and its adjacent area, and the conductive ring 3a is installed in the annular groove 10, in order to avoid interference between the first bearing 8 and the conductive ring 3a, the first bearing 8 will avoid the mounting portion 4 and its adjacent area. As an example of this embodiment, the first bearing 8 is arranged on the front side of the annular groove 10 in the axial direction of the blade body 1, so that the upper cover 5b and the bearing pressing part 9 will be adjacent to the annular groove 10 in the axial direction of the blade body 1, so the brush holder 6 can be installed on the upper cover 5b or the bearing pressing part 9, so that the brush installed on the brush holder 6 can be slidably connected with the conductive ring 3a to achieve conduction.

[0092] Of course, the mounting portion 4 can also be provided with an annular groove 10, such as the annular groove 10 formed on the outer peripheral side of the first protrusion 1a or the second protrusion 22a, or the outer peripheral side of the first protrusion 1a or the second protrusion 22a is provided with a protrusion extending radially outwardly along the blade 1, and the annular groove 10 is formed by two protrusions extending side by side. In this way, the annular groove 10 can also be formed on the mounting portion 4, so that the conductive component 3 can be installed in the annular groove 10 and sleeved on the mounting portion 4. No additional drawings are provided here for illustration.

[0093] In addition, the fixing component 5 may also include a receiving seat 5e, which is arranged on one side of the outer shell 5c, and is used to install a power-side contact 26 (i.e., a power-side connection end) electrically connected to the brush, so that the power-side contact 26 can rotate relative to the blade body 1, and the power-side contact 26 is used to be electrically connected to an external power supply, so that the external power supply can transmit an electrical signal to the conductive component 3 through the power-side contact 26.

[0094] When the ultrasonic knife handle 100 of this embodiment is working, the knife body 1 can drive the transducer housing 2a to rotate and rise and fall, so the knife body 1 and the transducer housing 2a need to be locked and fixed in the axial direction of the knife body 1. Figure 6-10 As an example of this embodiment, the first protrusion 1a of the blade body 1 extends toward the front side along the axial direction of the blade body 1, and a first mounting hole 11a is provided in the blade body 1 and passes through the first protrusion 1a and the main body 1b along the axial direction of the blade body 1; and

[0095] The second protrusion 22a of the transducer housing 2a extends toward the rear side along the axial direction of the blade body 1, and the second protrusion 22a of the transducer housing 2a and the housing portion 21a are jointly provided with a step hole 23a that penetrates along the axial direction of the blade body 1, and the step hole serves as a second mounting hole, wherein the step hole 23a includes a large diameter section 230aa and a small diameter section 231a that are interconnected, wherein the large diameter section 230aa is partially located in the second protrusion 22a, and partially located in the housing portion 21a; the small diameter section 231a is located in the housing portion 21a and is connected to the inner cavity 20a.

[0096] The first protrusion 1a is installed in the large diameter section 230a of the step hole 23a, so that the second protrusion 22a is wrapped around the outer peripheral side of the first protrusion 1a, and forms the connection between the second protrusion 22a and the first protrusion 1a, that is, the installation portion 4; and a locking piece 30 is provided in the first installation hole 11a, and the locking piece 30 penetrates the first protrusion 1a along the axial direction of the blade body 1, and extends into the small diameter section 231a of the step hole 23a, and is tightly connected with the second protrusion 22a, so as to realize the detachable connection between the first protrusion 1a and the second protrusion 22a. Furthermore, the outer circumferential surface of the first protrusion 1a can be set as a conical surface, and correspondingly, the inner circumferential surface of the large diameter section 230aa of the step hole 23a is also set as a conical surface. In this way, when the locking member 30 locks the first protrusion 1a and the second protrusion 22a, the outer circumferential surface of the first protrusion 1a can be tightly fitted with the inner circumferential surface of the large diameter section 230aa of the step hole 23a, so that the first protrusion 1a and the second protrusion 22a are tightly connected.

[0097] It can be understood that the radial outer diameter of the first protrusion 1a in the blade body 1 is smaller than the radial outer diameter of the main body 1b adjacent to the mounting portion in the blade body 1, and the radial outer diameter of the second protrusion 22a in the blade body 1 is smaller than the radial outer diameter of the shell portion 21a adjacent to the mounting portion in the blade body 1. Therefore, after the first protrusion 1a is embedded in the second protrusion 22a, an annular groove 10 recessed in the outer peripheral side of the shell portion 21a and the outer peripheral side of the main body 1b will be formed between the blade body 1 and the transducer housing 2a.

[0098] The connection relationship between the first protrusion 1a and the second protrusion 22a is not unique. As long as the two are connected and fixed in the axial direction of the blade body 1, the blade body 1 and the transducer housing 2a can be locked and fixed in the axial direction of the blade body 1.

[0099] For example, in other examples, refer to Figure 11-12 The first protrusion 1a of the blade body 1 extends toward the front side along the axial direction of the blade body 1, and a first mounting hole 11a is provided in the blade body 1 and passes through the first protrusion 1a and the main body 1b along the axial direction of the blade body 1, and the inner wall of the first mounting hole 11a protrudes toward the inside of the first mounting hole 11a to form a limiting ring 110a; the second protrusion 22a of the transducer housing 2a extends toward the rear side along the axial direction of the blade body 1, and the second protrusion 22a of the transducer housing 2a and the housing part 21a are jointly provided with a second mounting hole 24a that passes through the axial direction of the blade body 1.

[0100] The second protrusion 22a is installed in the first mounting hole 11a and is located in front of the limiting ring 110a. The limiting ring 110a limits the axial position of the second protrusion 22a in the blade body 1. The second protrusion 22a is installed in the first mounting hole 11a so that the first protrusion 1a is wrapped around the outer peripheral side of the second protrusion 22a, and the connection between the second protrusion 22a and the first protrusion 1a, i.e., the mounting portion 4, is formed.

[0101] A locking member 30 is disposed in the first mounting hole 11a. The locking member 30 passes through the limiting ring 110a along the axial direction of the blade body 1, extends into the second mounting hole 24a, and is tightly connected to the second protruding portion 22a of the transducer housing 2a, so as to realize a detachable connection between the first protruding portion 1a and the second protruding portion 22a. The connection and cooperation between the first protruding portion 1a and the second protruding portion 22a, and the connection and cooperation between the locking member 30 and the transducer housing 2a, and Figure 6-10 The principle of the structure shown is the same. Since the cavity 5a of the housing portion 21a is equipped with the transducer 2c, if the locking member 30 is arranged in the second mounting hole 24a on the side of the transducer housing 2a, when the blade body 1 and the transducer housing 2a need to be disassembled, the transducer 2c needs to be removed first, and the locking member 30 can be loosened from the second mounting hole 24a to achieve the disassembly of the blade body 1 and the transducer housing 2a. If the locking member 30 is installed in the first mounting hole 11a on the side of the blade body 1, when the ultrasonic blade handle 100 is removed from the main shaft, the locking member 30 can be directly loosened to achieve the disassembly of the blade body 1 and the transducer housing 2a. Therefore, the locking member 30 can also be installed in the second mounting hole 24a, but the disassembly is more complicated than that of the first mounting hole 11a.

[0102] For ease of installation, refer to Figure 6-10 The first mounting hole 11a can be a countersunk hole, and a collar 31 is also installed in the first mounting hole 11a. The collar 31 is used to limit the axial displacement of the locking member 30. After the locking member 30 connects and fixes the first protrusion 1a and the second protrusion 22a, the axial displacement of the locking member 30 relative to the blade body 1 is limited by the collar 31. When the blade body 1 and the transducer housing 2a need to be disassembled, the locking member 30 is loosened. Due to the presence of the collar 31, the locking member 30 will not withdraw from the first mounting hole 11a. The locking member 30 is continued to be loosened, and the blade body 1 is lifted up from the large diameter hole of the transducer housing 2a, thereby separating the blade body 1 from the transducer housing 2a.

[0103] refer to Figure 1-14As an example of this embodiment, the rear end face of the second protruding portion 22a is provided with two first limiting grooves 220a, and the first limiting grooves 220a are evenly arranged along the circumference of the second protruding portion 22a. Correspondingly, the front end face of the main body portion 1b is provided with a second limiting groove 11b, and a clamping block 32 is installed in each second limiting groove 11b, and each clamping block 32 extends into the corresponding first limiting groove 220a along the axial direction of the blade body 1, so that the blade body 1 can better transmit torque to the transducer housing 2a. Of course, the number of the first limiting groove 220a and the second limiting groove 11b can be one, or other numbers.

[0104] refer to Figure 1-14 As an example of this embodiment, the conductive component 3 also includes a conductive mounting portion 3b and a conductive voltage cover portion 3c, wherein a mounting groove 30b for accommodating the conductive ring 3a is provided in the conductive mounting portion 3b, the notch of the mounting groove 30b faces the outside of the blade body 1, and the front side of the conductive mounting portion 3b abuts against the side wall of the annular groove 10; the conductive voltage cover portion 3c is pressed onto the rear side of the conductive mounting portion 3b and is connected and fixed to the bottom of the annular groove 10. In this embodiment, since the second protrusion 22a is sleeved on the first protrusion 1a to form the mounting portion 4, the conductive voltage cover portion 3c is connected and fixed to the second protrusion 22a.

[0105] The conductive mounting portion 3b is made of insulating material, so that the conductive ring 3a can be accommodated by the conductive mounting portion 3b. In the axial direction of the blade body 1, the front side of the conductive mounting portion 3b is pressed against the annular groove 10 on the side wall of the transducer housing 2a, that is, the rear end face of the housing portion 21a, and the conductive voltage cover portion 3c is pressed against the rear side of the conductive mounting portion 3b, so that the axial position of the conductive component 3 on the blade body 1 is fixed.

[0106] It is understandable that a plurality of mounting grooves 30b may be provided in the conductive mounting portion 3b, and the plurality of mounting grooves 30b are sequentially arranged in the axial direction of the blade body 1, and each mounting groove 30b surrounds the connection between the second protrusion 22a and the first protrusion 1a, and has a notch facing the outside of the blade body 1. Correspondingly, the number of the conductive rings 3a may also be multiple, and the plurality of conductive rings 3a are installed one-to-one with the plurality of mounting grooves 30b. The number of the conductive rings 3a and the mounting grooves 30b may be adjusted according to the demand for electrical transmission, so that the conductive rings 3a can meet the power demand of the transducer 2b. Generally speaking, the number of the conductive rings 3a is set to two, including a rear conductor 30a and a front conductor 31a, and the rear conductor 30a and the front conductor 31a are installed at intervals in the mounting groove 30b, so as to facilitate the positive and negative electrodes of the transducer 2b to be respectively connected through the rear conductor 30a and the front conductor 31a.

[0107] Considering that the conductive ring 3a is built into the annular groove 10 and is recessed in the main body 1b of the blade 1 and the housing 21a of the transducer housing 2a, if the lead wire between the conductive ring 3a and the transducer 2b is arranged outside the transducer housing 2a and enters the inner cavity 20a along the radial direction of the transducer housing 2a, the length of the lead wire will undoubtedly be too long, and it is easy for the lead wire to interfere with other structures, such as the fixing component 5, making it difficult to install the fixing component 5. Therefore, the conductive ring 3a can achieve conductive communication with the transducer 2b in the axial direction of the blade 1.

[0108] refer to Figure 1-14 As an example of this embodiment, the conductive component 3 also includes a conductive part, which can be plugged into the transducer housing 2a in the axial direction of the blade body 1, and the conductive part can be conductively connected to the conductive ring 3a and the transducer 2b to achieve electrical connection between the conductive ring 3a and the transducer 2b. The conductive part can be detachably connected to the transducer housing 2a in whole or in part. In this way, when the conductive component 3 is removed from the mounting portion 4, the conductive part can move with the conductive ring 3a in whole or in part, thereby achieving removal from the transducer housing 2a, so that the conductive ring 3a can move synchronously with the conductive part, so that the conductive ring 3a can achieve a plug-and-play plug-in function.

[0109] In order to enable the conductive part to be detachably connected to the transducer housing 2a in whole or in part, the conductive part may adopt an integral structure or a split structure. Figure 1-14 , taking the split structure of the conductive part as an example for explanation, specifically, the conductive part may include a plurality of conductive connectors 3d electrically connected to the transducer 2c and conductive components 3e corresponding to the number of the conductive connectors.

[0110] The conductive connecting piece 3d is arranged on the front side of the conductive component 3e along the axial direction of the blade body 1 and is disposed in the shell portion 21a of the transducer shell 2a. In addition, in the axial direction of the blade body 1, one end of the conductive portion is electrically connected to the inner side of the conductive ring 3a, and the other end is electrically connected to the transducer 2b. In this way, it is possible to avoid the conductive line between the conductive ring 3a and the transducer 2b being placed outside the cavity 5a and interfering with the fixing component 5. It is also possible to shorten the arrangement path of the conductive line between the conductive ring 3a and the transducer 2b, and to make the electrical connection between the conductive ring 3a and the transducer 2b more stable.

[0111] In order to facilitate the electrical connection between the conductive connector 3d and the transducer 2b, a mounting channel 210a that passes through the inner cavity 20a may be provided in the shell portion 21a of the transducer shell 2a, and the conductive connector 3d is detachably connected to the mounting channel 210a in whole or in part, so that the conductive component 3 can be detached from the transducer shell 2a along the axial direction of the blade body 1.

[0112] Each conductive member 3e may be a columnar structure, and is mounted on the conductive mounting portion 3b, and is in contact and electrically connected with the corresponding conductive connector 3d, and the conductive member 3e is axially mounted in the conductive mounting portion 3b of the blade body 1, is located inside the conductive ring 3a, and is electrically connected to the conductive ring 3a. Generally speaking, the conductive connector 3d and the conductive member 3e are at least adapted to the number of the conductors. In the case where the conductive ring 3a has a rear conductor 30a and a front conductor 31a, part of the conductive member 3e is electrically connected to the rear conductor 30a, and the remaining part of the conductive member 3e is electrically connected to the front conductor 31a, so that the rear conductor 30a and the front conductor 31a are respectively connected to the positive and negative electrodes of the transducer 2b.

[0113] It can be understood that, in the case where there are multiple conductive rings 3a, the number of conductive components 3e can also be increased accordingly, and each conductive component 3e can be electrically connected to the conductive ring 3a one by one. Taking the conductive ring 3a including the rear conductor 30a and the front conductor 31a as an example, the two conductive components 3e can be electrically connected to the two conductive rings 3a respectively, that is, one of the conductive components 3e is only electrically connected to one of the conductive rings 3a, and the other conductive component 3e is only electrically connected to the other conductive ring 3a, so that part of the conductive components 3e is electrically connected to the rear conductor 30a, and the remaining part of the conductive components 3e is electrically connected to the front conductor 31a, so as to realize the positive and negative distribution in the connection circuit. Of course, if the conductive component 3 is only provided with one conductive ring 3a, a partition structure needs to be provided inside the conductive ring 3a so that the single conductive ring 3a can realize positive and negative conduction. At this time, the conductive mounting portion 3b only needs to be provided with a mounting groove 30b for mounting the conductive ring 3a.

[0114] It is understandable that the structure of the conductive connector 3d is diverse, and it can be an integrated structure or a detachable structure, as long as the conductive connector 3d can be plugged into the mounting channel 210a to achieve conductive connection between the conductive ring 3a and the transducer 2b. For example, the conductive connector 3d may include an insulating mounting seat 30d and a conductive matching member 31d placed in the insulating mounting seat 30d, and the conductive matching member 31d is electrically connected to the transducer 2b. The insulating mounting seat 30d is arranged in the mounting channel 210a, so that the conductive matching member 31d is fixed on the transducer housing 2a, and the conductive member 3e is installed on the conductive mounting portion 3b and fixed in the conductive component 3. In this way, when the conductive ring 3a is sleeved on the mounting portion 4, the conductive component 3e can contact the conductive matching component 31d, so that the conductive ring 3a and the transducer 2b are conductive. When the conductive ring 3a is removed from the mounting portion 4, the conductive component 3e and the conductive matching component 31d are disconnected, so that the conductive ring 3a and the transducer 2b are disconnected, thereby realizing the plug-in assembly of the conductive ring 3a and the transducer 2b.

[0115] In a specific application, the conductive component 3e can be a socket or a plug, and the conductive matching component 31d is a corresponding plug or socket. The plug and the socket are inserted into each other to form an electrical connection between each conductive component 3e and the corresponding conductive matching component 31d. In the case where the conductive ring 3a has a rear conductor 30a and a front conductor 31a, specifically, on one side of the transducer housing 2a, an insulating mounting seat 30d is provided in the mounting channel 210a. The conductive matching components 31d are installed in the insulating mounting seat 30d one by one and are electrically connected to the transducer 2b through a wire, wherein one conductive matching component 31d is connected to the positive electrode sheet of the transducer 2b, and the other conductive matching component 31d is connected to the negative electrode sheet of the transducer 2b, so that the conductive components 3 are connected to each other. When arranged on the mounting portion, the conductive component 3e can be plugged into the conductive matching component 31d, so that the conductive ring 3a is conductive with the transducer 2b, thereby ensuring that the conductive component 3 and the transducer 2b are quickly electrically connected. Moreover, when the conductive component 3 is detached from the mounting portion, the conductive matching component 31d is separated from the conductive component 3e, so that part of the conductive portion can be detachably connected to the mounting channel 210a, and the conductive component 3 can be connected to the transducer 2b by a plug-in connection, so that the entire conductive component 3 is easy to disassemble and replace.

[0116] refer to Fig.13 In other examples, the conductive connector 3d may also adopt a matching structure of an insulating mounting seat 30d and an elastic conductive sheet 32d, which includes an insulating mounting seat 30d and an elastic conductive sheet 32d, a conductive component 3e electrically connected to the conductive ring 3a, and an elastic conductive sheet 32d electrically connected to the transducer 2b. The conductive component 3e contacts the elastic conductive sheet 32d to form an electrical connection. In this way, the conductive component 3 can also enable the conductive ring 3a to be electrically connected to the transducer 2b in the axial direction of the blade body 1.

[0117] refer to Figure 2-4 As an example of this embodiment, the front end face of the conductive mounting portion 3b is provided with accommodating grooves 31b corresponding to the number of the conductive components 3e, the front end of each conductive component 3e is arranged in the accommodating groove 31b, and the rear end face of each insulating mounting seat 30d extends into the corresponding accommodating groove 31b, so that when the conductive ring 3a is sleeved on the mounting portion 4, the conductive component 3e and the conductive matching piece 31d or the elastic conductive sheet 32d can be quickly positioned, matched and connected.

[0118] When the ultrasonic knife handle 100 is working, the conductive ring 3a will contact the brush and generate heat by friction. Therefore, after the ultrasonic knife handle 100 has been working for a long time, the conductive ring 3a will generate a large amount of heat and dust, which will affect the service life of the conductive ring 3a. A cooling air path is set in the ultrasonic knife handle 100 to cool the conductive ring 3a and the transducer 2c and remove the dust generated by the conductive ring 3a during operation, which can extend the service life of the conductive ring 3a and the transducer 2c.

[0119] refer to Figure 1-19 As an example of this embodiment, the ultrasonic knife handle 100 also includes a conductive component cooling branch 15 for cooling the conductive component 3 and a transducer cooling branch 14 for cooling the transducer 2c. The inner cavity 20a is connected to its external space to form the transducer cooling branch 14, and the cavity 5a is connected to its external space to form the conductive component cooling branch 15. The external space here mainly refers to the external environment, so as to discharge the gas in the cooling branch. The fixed component 5 is provided with an air inlet channel 16a connected to the external cooling air source. The air inlet channel 16a is connected to the transducer cooling branch 14 and the conductive component cooling branch 15, respectively, so that the airflow of the external cooling air source can flow to the cavity 5a and the inner cavity 20a through the air inlet channel 16a. The transducer cooling branch 14 is connected to the transducer assembly, and can allow airflow to enter the inner cavity 20a from the outside of the inner cavity 20a to cool the transducer 2c; the conductive component cooling branch 15 is connected to the conductive component 3, and can allow airflow to flow to the outer peripheral side of the conductive ring 3a to cool the conductive ring 3a. Of course, according to the application scenario of the ultrasonic knife handle 100, the transducer cooling branch 14 and the conductive component cooling branch 15 can be used alone or at the same time.

[0120] The fixing assembly 5 may also include an airway pressure ring 16, so that the airflow can enter the transducer cooling branch 14 and the conductive assembly cooling branch 15 respectively. Specifically, the airway pressure ring 16 is arranged on the outer peripheral side of the conductive ring 3a, and is close to the transducer housing 2b, so that a shunt air path 17 is formed between the airway pressure ring 16 and the transducer housing 2b, and the shunt air path 17 is arranged to be able to introduce external air, and the introduced air enters the transducer cooling branch 14 and the conductive assembly cooling branch 15 respectively. Specifically, the other end of the shunt air path 17 is connected in parallel with the conductive assembly cooling branch 15 and the transducer cooling branch 14, so that the airflow can enter the transducer cooling branch 14 and the conductive assembly cooling branch 15 respectively.

[0121] It is understandable that the path design of the transducer cooling branch 14 and the conductive component cooling branch 15 is not unique, and it is only necessary to ensure that the airflow flowing inside the transducer cooling branch 14 can cool the transducer 2c, and the airflow flowing inside the conductive component cooling branch 15 can cool the conductive ring 3a. As an example of this embodiment, the transducer cooling branch 14 can be designed as follows:

[0122] A gap is formed between the first bearing 8 and the transducer housing 2b, and a first transducer branch 14a arranged along the axial direction of the blade body 1, a second transducer branch 14b arranged along the radial direction of the blade body 1, and a third transducer branch 14c and a fourth transducer branch 14d connected to the inner cavity 20a are provided in the transducer housing 2b. The first transducer branch 14a, the second transducer branch 14b, the gap, the third transducer branch 14c, the inner cavity 20a and the fourth transducer branch 14d are connected in sequence to form a transducer cooling branch 14, wherein:

[0123] The first branch 14a of the transducer is arranged at the rear end of the transducer housing 2b, and is connected to the air inlet channel 16a through the bypass air path 17; one end of the second branch 14b of the transducer is connected to the first branch 14a of the transducer, and the other end is connected to the gap between the transducer housing 2b and the first bearing 8 serving as a bearing member; one end of the third branch 14c of the transducer is connected to the gap between the transducer housing 2b and the first bearing 8, and the other end is connected to the inner cavity 20a; one end of the fourth branch 14d of the transducer is connected to the inner cavity 20a, and the other end is connected to the outside.

[0124] Specifically, as an example of this embodiment, the transducer assembly also includes a transformer rod 33 fixedly connected to the transducer 2c, the flange portion 301a of the transformer rod 33 is connected to the inner wall of the transducer housing 2b, and a second through hole 300a is opened on the flange portion 301a, and the second through hole 300a connects the inner cavity 20a with the external environment to form the fourth branch 14d of the transducer.

[0125] In addition, a transducer spiral gas path 18 extending along the axial direction of the blade body 1 may be provided on the outer peripheral side of the transducer housing 2b to form a gap between the transducer housing 2b and the first bearing 8 and extend the flow distance of the airflow between the transducer housing 2b and the first bearing 8. The transducer spiral gas path 18 connects the transducer second branch 14b and the transducer third branch 14c, so that after the airflow flows out from the transducer second branch 14b, it can flow along the spiral path defined by the transducer spiral gas path 18 to cool the first bearing 8.

[0126] It is understandable that the shunt air path 17 formed by the airway pressure ring 16 will be connected to the cavity 5a to cool the conductive ring 3a. In order to ensure that the cooling airflow can blow to the conductive ring 3a, the airway pressure ring 16 will be close to one end of the conductive component 3, so that the airway pressure ring 16 will also be close to the side wall of the annular groove 10, so the brush holder 6 can also be installed on the airway pressure ring 16, so that the brush installed on the brush holder 6 can be slidably connected with the conductive ring 3a to achieve conduction. As an example of this embodiment, the airway pressure ring 16 is installed on the bearing pressing part 9 as a component of the fixed component 5.

[0127] refer to Figure 1-19 As an example of this embodiment, the cavity 5a where the conductive ring 3a is located constitutes a conductive component cooling branch 15. After the airflow enters the cavity 5a from the branch air path 17, the conductive ring 3a can be cooled. In addition, an upper air path 15a is formed between the blade body 1 and the fixed component 5. The upper air path 15a can connect the outside with the inside of the fixed component 5, that is, the cavity 5a, and is connected to the conductive component cooling branch 15.

[0128] In this way, after the airflow flows into the split air path 17, it can enter the cavity 5a and the first branch 14a of the transducer respectively, and then flow to the conductive ring 3a and the transducer 2c, respectively cooling the conductive ring 3a and the transducer 2c. In addition, the airflow entering the cavity 5a can take out the dust generated during the operation of the conductive ring 3a from the upper air path 15a, thereby ensuring the stability of the electrical connection between the conductive ring 3a and the brush, and extending the service life of the conductive component 3.

[0129] Specifically, the upper cover body 5b extends into the front side of the blade body 1 along the radial direction of the blade body 1, and the outer side wall of the blade body 1 is provided with a flange 10c extending toward the front side; and, an upper groove 50b arranged around the blade body 1 is provided on the upper cover body 5b, and the flange 10c extends into the upper groove 50b to form an upper air path 15a, and the cavity 5a is connected with the external environment through the upper air path 15a.

[0130] By cooperating with the flange 10c of the blade body 1 and the upper groove 50b of the upper cover body 5b, the upper air path 15a can form a U-shaped passage, so that the upper air path 15a can form a labyrinth seal to prevent external dust and the like from entering the cavity 5a where the conductive ring 3a and the brush are located, thereby affecting the electrical connection between the two.

[0131] The ultrasonic knife handle 100 adopts a parallel air path design, so that after the external airflow enters from the air inlet channel 16a, it can be diverted to the transducer cooling branch 14 and the conductive component cooling branch 15, and the transducer 2c and the conductive component 3 are cooled synchronously. In the cooling air path of the ultrasonic knife handle 100, the air inlet channel 16a is responsible for connecting to the external cooling air source and obtaining the cooling airflow. The air inlet channel 16a can be a normally open air path, or a gas path with an opening and closing structure.

[0132] refer to Figure 1-19As an example of this embodiment, the fixing component 5 is provided with a first channel 161a and a lateral channel 162a, and a first through hole 160a is provided on the side wall of the outer shell 5c, the first channel 161a is connected to the external cooling air source, a bypass air path 17 is formed between the inner ring side of the airway pressure ring 16 and the transducer housing 2b, and a pressure ring air path 16b connected to the bypass air path 17 is provided on the outer ring side of the airway pressure ring 16, the lateral channel 162a is connected to the pressure ring air path 16b through the first through hole 160a, and the first channel 161a, the lateral channel 162a, the first through hole 160a and the pressure ring air path 16b are connected in sequence to form an air inlet channel 16a. At this time, the first channel 161a and the lateral channel 162a are located on the outside of the outer shell 5c and can be connected to the external cooling air source. Of course, the upper cover 5b and the receiving seat 5e can also be an integrated structure. At this time, the first channel 161a and the lateral channel 162a are arranged on the upper cover 5b or the receiving seat 5e. Fig. 20 and 23 It is shown that the upper cover 5b and the receiving seat 5e are integrally formed.

[0133] In order to introduce the gas flow into the bypass gas path 17, refer to Figure 1-19 As an example of this embodiment, a hollow guide air nozzle 19 is provided on the fixing assembly 5. One end of the guide air nozzle 19 extends into the air inlet passage 16a, and the guide air nozzle 19 can move in the air inlet passage 16a along the axial direction of the blade body 1, and the other end of the guide air nozzle 19 can be connected to an external cooling air source to supply cooling air flow to the air inlet passage 16a.

[0134] Specifically, an air nozzle elastic member 20 is arranged between the guide air nozzle 19 and the fixed component 5, one end of the air nozzle elastic member 20 is connected to the air inlet channel 16a, and the other end extends into the guide air nozzle 19, so that the guide air nozzle 19 can move relative to the fixed component 5 along the axial direction of the blade body 1, and the guide air nozzle 19 is connected to the bypass air path 17 and to the outside of the fixed component 5 to form a cooling air inlet path, so that when the ultrasonic knife handle 100 is assembled in place, the guide air nozzle 19 is driven by the elastic force of the air nozzle elastic member 20 to press against the supply end of the external cooling air source, so that the cooling airflow of the external cooling air source can enter the air inlet channel 16a through the guide air nozzle 19.

[0135] In combination with the aforementioned transducer cooling branch 14 and the conductive component cooling branch 15, the ultrasonic knife handle 100 of this embodiment can realize the following flow path and make the air flow flow along the flow path:

[0136] The airway pressure ring 16 is an annular structure, which is arranged around the blade body 1, so that the shunt air path 17 formed between the airway pressure ring 16 and the transducer housing 2b is also an annular structure, which is arranged around the blade body 1. An air inlet channel 16a connected to the shunt air path 17 is also arranged in the airway pressure ring 16, and the air inlet channel 16a is also connected to the guide air nozzle 19. Among them, the bearing pressure cover 7 is used to limit the axial direction of the first bearing 8, which is installed at the rear end of the housing part 21a, and its rear end face is flush with the rear end face of the housing part 21a, so the shunt air path 17 is also the air path between the airway pressure ring 16 and the bearing pressure cover 7.

[0137] After the gas flows out from the guide gas nozzle 19, it enters the branch gas path 17 through the air inlet channel 16a, and then is divided into two paths in the branch gas path 17:

[0138] The gas enters the transducer cooling branch 14, specifically, sequentially passes through the transducer first branch 14a, the transducer second branch 14b, the transducer spiral gas path 18, and the transducer third branch 14c, and enters the inner cavity 20a of the transducer housing 2b to cool the transducer 2c to extend the service life of the transducer 2c. Finally, the gas is discharged along the transducer fourth branch 14d, that is, from the second through hole 300a provided on the flange portion 301a.

[0139] The other way enters the conductive component cooling branch 15, specifically through the cooling gap between the airway pressure ring 16 and the conductive mounting portion 3b, enters the cavity 5a of the fixed component 5, thereby cooling the conductive ring 3a, and then enters the gap between the upper cover body 5b and the conductive voltage cover portion 3c, and finally is discharged from the gap along the upper air path 15a, that is, the gap between the blade body 1 and the upper cover body 5b, thereby blowing out the dust generated by the wear of the conductive ring 3a and the brush, ensuring the stability of the electrical connection and extending the service life of the conductive component 3.

[0140] When the ultrasonic knife handle 100 is working, the electrical signal is generally input through the transmitting seat 24, and the electrical signal is transmitted to the transducer 2c through the conductive component 3. Since the knife body 1 can rotate relative to the fixed component 5, after the knife body 1 is separated from the main shaft, relative rotation will occur between the knife body 1 and the fixed component 5 and the conductive component 3. At this time, the power-side contact 26 (i.e., the receiving part) provided on the end face of the fixed component 5 may deviate from the current position, so that when the ultrasonic knife handle 100 is connected to the main shaft again, the power-side contact 26 of the fixed component 5 will not directly contact the power-side contact 25 (i.e., the power supply part) of the transmitting seat 24, so that the transmitting seat 24 will not be able to transmit the electrical signal to the conductive component 3. In view of this situation, a positioning component 21 can be provided on the ultrasonic knife handle 100 to limit the relative rotation between the knife body 1 and the fixed component 5 when the knife body 1 is separated from the main shaft.

[0141] refer to Figure 1-14 , Figure 20-25 As an example of this embodiment, the ultrasonic knife handle 100 further includes a positioning component 21, which is disposed on the outer peripheral side of the knife body 1 and arranged on the upper cover body 5b; the knife body 1 is provided with a positioning groove 22 arranged along the circumference of the knife body 1, and the positioning component 21 is configured to be able to move toward the knife body 1 and extend into the positioning groove 22, so that the knife body 1 and the fixing component 5 are relatively stationary, and can move away from the knife body 1 to escape from the positioning groove 22, so that the knife body 1 and the fixing component 5 can rotate relatively.

[0142] The upper end surface of the upper cover 5b is provided with a positioning groove 51b, which is connected to the positioning groove 22; the positioning assembly 21 is arranged in the positioning groove 51b. In some implementation examples, the positioning assembly 21 and the power-side contact 26 are located on the same side of the blade body 1 to facilitate the structural layout of the ultrasonic blade handle 100. Specifically, when the ultrasonic blade handle is installed on the spindle, the transmitting seat on the spindle side can act on the positioning assembly.

[0143] Specifically, the positioning assembly 21 includes a slider group and a top block 21c, wherein the slider group includes an upper slider 21e and a lower slider 21b sequentially arranged along the circumference of the blade body 1, wherein:

[0144] The upper slider 21e can reciprocate along the axial direction of the blade body 1, and a first inclined surface 210e is provided on the side of the upper slider 21e away from the blade body 1. The first inclined surface 210e is inclined from top to bottom, that is, from the rear side to the front side toward the blade body 1.

[0145] The lower slider 21b can reciprocate to approach or move away from the blade body 1, and the lower slider 21b is connected to the top block 21c, and a second inclined surface 210b is provided on the side of the lower slider 21b facing the blade body 1, and the second inclined surface 210b is inclined from top to bottom toward the blade body 1, so that the first inclined surface 210e and the second inclined surface 210b are attached to each other and can slide relative to each other, so that the upper slider 21e moves toward the front side, squeezes the lower slider 21b and can make the lower slider 21b away from the blade body 1, and then the top block 21c is released from the positioning groove 22. When the upper slider 21e moves toward the rear side, the lower slider 21b loses the axial squeezing force on the blade body 1, so that the lower slider 21b no longer has the tendency to move away from the blade body 1, and the lower slider 21b has the premise of approaching the blade body 1.

[0146] The lower slider 21b is provided with a snap-fit ​​groove 211b, and the top block 21c is embedded in the snap-fit ​​groove 211b, so that the top block 21c moves synchronously with the lower slider 21b, that is, the top block 21c is connected to the lower slider 21b and can move synchronously with the lower slider 21b, and the upper slider 21e is provided with a lower notch 212e on the side facing the blade body 1, and the lower slider 21b passes through the lower notch 212e and extends toward the side where the blade body 1 is located to achieve connection with the top block 21c, and also enables the upper slider 21e and the lower slider 21b to form a constraint fit in the axial direction of the blade body 1 by using the lower notch 212e, so that the upper slider 21e and the lower slider 21b will not separate during the relative movement. Moreover, it can avoid interference between the lower slider 21b and the upper slider 21e when it moves toward the blade body.

[0147] The top block 21c is configured to be able to reciprocate toward or away from the blade body 1, so that the top block 21c is inserted into the positioning groove 22 or is removed from the positioning groove 22. Specifically, the positioning assembly 21 further includes a positioning elastic member 23, the top block 21c is in contact with the positioning elastic member 23, and the positioning elastic member 23 is configured to be able to squeeze the top block 21c, exert a force on the top block 21c to move toward the blade body 1, so that the top block 21c is inserted into the positioning groove 22, and since the top block 21c moves synchronously with the lower slider 21b, the lower slider 21b can drive the upper slider 21e to rise.

[0148] Through the aforementioned positioning assembly 21, when the ultrasonic knife handle 100 is connected to the main shaft, the upper slider 21e can be squeezed, so that the upper slider 21e moves toward the front side, and the lower slider 21b cooperates with the top block 21c to move to the side away from the knife body 1, so that the top block 21c exits the positioning groove 22 of the knife body 1. When the ultrasonic knife handle 100 is separated from the main shaft, the upper slider 21e loses the squeezing, and the positioning elastic member 23 squeezes the top block 21c, exerting a force on the top block 21c to move toward the knife body 1. Under the action of the positioning elastic member 23, the top block 21c extends into the positioning groove 22 and drives the lower slider 21b to move toward the side close to the blade body 1. In this way, the upper slider 21e moves toward the rear side under the action of the first inclined surface 210e and the second inclined surface 210b and protrudes from the upper cover 5b, so that when the ultrasonic knife handle 100 is connected to the main shaft next time, the upper slider 21e can be squeezed again, so that the positioning assembly 21 performs the aforementioned action again, so that the top block 21c withdraws from the positioning groove 22 of the blade body 1.

[0149] It is understandable that the structural design of the top block 21c is diverse, and the top block 21c only needs to be driven by the lower slider 21b to extend into the positioning groove 22, and driven by the positioning elastic member 23 to escape from the positioning groove 22. Figure 1-14 , Figure 20-25As an example of this embodiment, the top block 21c may include a first guide section 210c and a second guide section 211c, and the first guide section 210c and the second guide section 211c are arranged at an angle; and the first guide section 210c is located on the side of the second guide section 211c close to the blade body 1, so that one end of the first guide section 210c can extend into the positioning groove 22, and the other end is connected to the second guide section 211c, and the second guide section 211c is connected to the slider group. In this way, the movement of the lower slider 21b can make the first guide section 210c of the top block 21c reciprocate in and out of the positioning groove 22, which can correspondingly make the blade body 1 and the fixed component 5 relatively stationary and the blade body 1 and the fixed component 5 relatively rotatable.

[0150] In addition, in order to enable the top block 21c to move smoothly, the slider group and the positioning elastic member 23 can be two groups, and both are located on the side of the second guide section 211c away from the blade body 1, and each of the slider groups is respectively connected to the two ends of the second guide section 211c, and each positioning elastic member 23 is arranged between the two slider groups at intervals and is connected to the second guide section 211c. Moreover, the first guide section 210c is arranged perpendicular to the second guide section 211c, and the first guide section 210c is arranged along the radial direction of the blade body 1. In this way, the action of the slider group or the positioning elastic member 23 can exert a force on the top block 21c along the radial direction of the blade body 1, and the force is distributed on both sides of the first guide section 210c, so that the top block 21c can smoothly enter and exit the positioning groove 22.

[0151] It can be understood that the number of positioning grooves 22 can be multiple. In this way, when the initial position of the blade body 1 is adjusted, the position determined by the multiple positioning grooves 22 can be used to calibrate its relative position with the fixing component 5, so that after the top block 21c extends into the positioning groove 22 to lock the position of the blade body 1, the power-side contact 26 arranged on the end face of the fixing component 5 can maintain a position corresponding to the power-supply side contact 25.

[0152] When the ultrasonic knife handle 100 is separated from the main shaft, the upper slider 21e should protrude from the fixing assembly 5 and extend out of the upper cover 5b, so that when the ultrasonic knife handle 100 is connected to the main shaft, the upper slider 21e can be easily squeezed and moved forward. In order to limit the axial travel of the upper slider 21e in the knife body 1 to prevent the upper slider 21e from falling out, refer to Figure 1As an example of this embodiment, the positioning assembly 21 also includes a slider cover 21d located above the positioning groove 51b. The slider cover 21d is arranged on the moving path of the upper slider 21e to limit the upward stroke of the upper slider 21e, that is, the axial displacement of the positioning assembly 21 with respect to the blade body 1. Specifically, a guide hole 210d is arranged on the slider cover 21d. The guide hole 210d penetrates the slider cover 21d along the axial direction of the blade body 1, and the upper slider 21e is provided with a guide portion 211e extending along the axial direction of the blade body 1. The guide portion 211e extends into the guide hole 210d to guide the moving direction of the upper slider 21e. Moreover, the slider cover 21d can also cover other parts of the positioning groove to limit the lower slider and the top block to prevent them from falling out of the positioning groove.

[0153] After the upper slider 21e moves a certain distance toward the rear side along the axial direction of the cutter body 1, it will abut against the slider cover 21d and cannot escape from the slider cover 21d. Of course, the stroke limited by the slider cover 21d should be able to satisfy the escape of the top block 21c from the positioning groove 22.

[0154] Based on the aforementioned ultrasonic knife handle 100, this embodiment also provides an ultrasonic processing device 200, including the aforementioned ultrasonic knife handle 100, and further including a transmitter 24, on which a power supply side contact 25 (i.e., a power supply side connection end) is installed, and a power side contact 26 (i.e., a power side connection end) is installed on the upper cover 5b of the ultrasonic knife handle 100, and the power supply side contact 25 and the power side contact 26 are in surface contact to form an electrical connection, and the power side contact 26 is electrically connected to the conductive component 3. Compared with point contact, the surface contact between the power supply side contact 25 and the power side contact 26 can obtain a better electrical connection effect. In addition, by installing the positioning component 21 at the position where the power side contact 26 is located, i.e., the upper cover 5b, the positioning component 21 can lock the relative position of the upper cover 5b and the knife body 1, ensuring that the power side contact 26 is connected to the power supply side contact 25.

[0155] refer to Figure 1-25 The transmitting seat 24 is provided with a second channel 27 having a step portion 27a, the second channel 27 is connected to the air inlet channel 16a, and the second channel 27 can be connected to an external cooling air source to supply cooling airflow to the air inlet channel 16a. In addition, one end of the guide air nozzle 19 extends into the air inlet channel 16a, and the other end of the guide air nozzle 19 can extend into the second channel 27, so that the air inlet channel 16a is connected to the second channel 27, so that when the transmitting seat 24 is connected to the ultrasonic knife handle 100, the guide air nozzle 19 can connect the second channel 27 with the air inlet channel 16a, so that the cooling airflow transported by the external cooling air source enters the air inlet channel 16a.

[0156] An air core 28 is disposed in the second passage 27, and the air core 28 passes through the step portion 27a, and an air core elastic member 29 is disposed between the air core 28 and the step portion 27a, so that the air core 28 can move along the axial direction of the blade body 1. When the air core 28 moves toward the step portion 27a, the air core 28 can squeeze the air core elastic member 29, and the air core elastic member 29 applies a force to the air core 28 to move the air core 28 away from the step portion 27a, so that the air core 28 is pressed against the guide air nozzle 19.

[0157] An air core air passage 28a is provided in the air core 28 and runs through the rear end thereof, and the air core air passage 28a is communicated with the second passage 27. In addition, an air inlet hole 28b is provided on the side wall of the air core 28 near the rear end thereof, and the air inlet hole 28b is communicated with the air core air passage 28a and can be communicated with the second passage 27. A sealing groove 28c is also provided on the rear side of the air inlet hole 28b along the axial direction of the blade body 1, and a sealing ring 13 can be filled in the sealing groove 28c. Under the action of the air core elastic member 29, the air core 28 can maintain a tendency to move away from the step portion 27a, so that the sealing ring 13 installed in the sealing groove 28c is pressed on the step portion 27a, so that the sealing groove 28c is sealed with the rear end face of the step portion 27a through the sealing ring 13, so that the second passage 27 is closed, that is, it is not communicated with the air inlet hole 28b.

[0158] When the ultrasonic knife handle 100 is used, the ultrasonic knife handle 100 is mounted on the main shaft. When the ultrasonic knife handle 100 is assembled in place, the power supply side contact 25 of the transmitting seat 24 is connected to the power side contact 26 of the upper cover 5b, so that the electrical signal can be connected to the transducer 2c. At the same time, the air core 28 arranged in the launching seat 24 can be pressed onto the guide air nozzle 19 under the elastic force of the air core elastic member 29, and the front end of the air core 28 and the rear end of the guide air nozzle 19 are pressed against each other, so that the air core air channel 28a is connected with the guide air nozzle 19, so as to realize the connection between the air core air channel 28a and the air inlet channel 16a, and the guide air nozzle 19, based on the action of the air nozzle elastic member 20, can squeeze the air core 28 and move the air core 28 to the side of the step portion 27a, so that the sealing ring 13 installed on the air core 28 is separated from the step portion 27a, and the air inlet hole 28b of the air core 28 is connected with the outside, so that the external air can enter the air core air channel 28a from the air inlet hole 28b, and enter the diversion air path 17 through the guide air nozzle 19 and the air inlet channel 16a.

[0159] When the ultrasonic knife handle 100 is separated from the main shaft, the air core 28 is away from the guide air nozzle 19. In this way, the air core 28 can move to the side away from the step portion 27a under the action of the air core elastic member 29, so that the sealing ring 13 installed in the sealing groove 28c is pressed onto the step portion 27a to close the second channel 27.

[0160] Based on the aforementioned ultrasonic machining device 200, this embodiment further provides a machine tool, including a machine tool body, a spindle arranged on the machine tool body, and the aforementioned ultrasonic machining device 200, wherein the transmitting seat 24 is installed on the spindle.

[0161] In summary, the embodiment of the utility model provides an ultrasonic knife handle 100 which forms a mounting portion 4 through a detachably connected knife body 1 and a transducer housing 2a, so that the conductive component 3 can be sleeved on the mounting portion 4, so that the conductive ring 3a can adopt an integrated structure, and the radial outer diameter of the conductive ring 3a in the knife body 1 is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion 4. By reducing the outer diameter of the conductive ring 3a, the linear speed of the conductive ring 3a is reduced, and the heat generated by the conductive ring 3a is reduced, so as to increase the service life of the conductive component 3, and solve the problems of the existing ultrasonic knife handle having a high linear speed and severe heat generation, and the ultrasonic knife handle being difficult to apply high-speed processing. Furthermore, since the conductive component 3 is sleeved on the mounting portion 4 formed by connecting the blade body 1 and the transducer housing 2a, the size change of the conductive component 3 will not affect the specifications of the inner cavity 20a of the transducer housing 2a, that is, it will not affect the specifications of the transducer 2c. Therefore, even if the ultrasonic blade handle 100 of the present invention adjusts the size of the conductive ring 3a according to functional requirements, it can ensure that the power of the transducer 2c is not affected, and will not affect the normal operation of the ultrasonic blade handle 100.

[0162] Moreover, the ultrasonic knife handle 100 of the present embodiment adds a transducer cooling branch 14 and a conductive component cooling branch 15, and uses the transducer cooling branch 14 and the conductive component cooling branch 15 to cool the transducer 2c and the conductive component 3. Compared with the central cooling design adopted by the existing ultrasonic knife handle 100, the cooling air path structure of the ultrasonic knife handle 100 is simple, and the dust generated by the wear of the conductive ring 3a and the brush can be blown out, further reducing the heat generation of the conductive ring 3a. In addition, the cooling air path of the ultrasonic knife handle 100 can effectively prevent the problem of component damage caused by errors in the cooperation between the transmitting seat 24 and the fixing component 5 by adding a guide air nozzle 19 and a design of an air nozzle elastic member 20.

[0163] In addition, the ultrasonic knife handle 100 of this embodiment is provided with a positioning assembly 21, and when the main shaft is separated from the knife body 1, the positioning assembly 21 can be used to lock the current position of the knife body 1, so that the knife body 1 and the receiving portion can be relatively still. Moreover, when the ultrasonic knife handle is installed on the main shaft, the knife body and the receiving seat can rotate relatively. This embodiment also provides an ultrasonic processing device 200 and a machine tool, which use the aforementioned ultrasonic knife handle 100 and have the beneficial effects of the aforementioned ultrasonic knife handle 100.

[0164] 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 substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An ultrasonic knife handle, characterized in that: include: Knife body; A transducer housing is connected to the blade body, wherein an inner cavity for accommodating the transducer is provided in the transducer housing, the transducer is electrically connected to the conductive component, and the inner cavity is communicated with an external space thereof to form a transducer cooling branch; A fixing component, wherein the fixing component is rotatably sleeved on the outer peripheral side of the blade body or the transducer housing to form a cavity, wherein the cavity is used to accommodate the conductive component, and the cavity is communicated with the external space thereof to form a conductive component cooling branch; and The fixing component is provided with an air inlet passage connected to an external cooling air source, and the air inlet passage is respectively connected to the conductive component cooling branch and the transducer cooling branch.

2. The ultrasonic knife handle according to claim 1, characterized in that: The fixing assembly is rotatably connected to the transducer housing, and the fixing assembly includes an upper cover, an outer cover, and a lower cover, wherein: The lower cover is sleeved on the transducer housing through a bearing member, the outer cover is arranged between the upper cover and the lower cover, and the front side of the outer cover is connected to the lower cover, and the rear side of the outer cover is connected to the upper cover to form the cavity.

3. The ultrasonic knife handle according to claim 2, characterized in that: The fixing component includes an airway pressure ring; the airway pressure ring is arranged on the outer peripheral side of the conductive component and close to the transducer housing, so that a shunt air path is formed between the airway pressure ring and the transducer housing, one end of the shunt air path is connected to the air inlet channel, and the other end of the shunt air path is connected in parallel with the conductive component cooling branch and the transducer cooling branch, so that the airflow can enter the transducer cooling branch and the conductive component cooling branch respectively.

4. The ultrasonic knife handle according to claim 3, characterized in that: The fixing component is provided with a first channel and a lateral channel, and a first through hole is provided on the side wall of the outer shell, the first channel is connected with an external cooling air source, the bypass air path is formed between the inner ring side of the airway pressure ring and the transducer shell, the outer ring side of the airway pressure ring is provided with a pressure ring air path connected with the bypass air path, the lateral channel is connected with the pressure ring air path through the first through hole, and the first channel, the lateral channel, the first through hole and the pressure ring air path are connected in sequence to form the air inlet channel.

5. The ultrasonic knife handle according to claim 2, characterized in that: The upper cover body extends into the front side of the blade body along the radial direction of the blade body, and the outer side wall of the blade body is provided with a flange extending toward the front side; the upper cover body is provided with an upper groove arranged around the blade body, and the flange extends into the upper groove to form an upper air path, and the cavity is connected with the external environment through the upper air path.

6. The ultrasonic knife handle according to claim 1, characterized in that: A bearing member connected to the fixing assembly is disposed on the outer peripheral side of the transducer housing, a gap is provided between the bearing member and the transducer housing, and, The transducer housing is provided with a first transducer branch, a second transducer branch and a third transducer branch, and the first transducer branch, the second transducer branch, the gap, the third transducer branch and the inner cavity are sequentially connected to form the transducer cooling branch, wherein: The first branch of the transducer is in communication with the air inlet passage.

7. The ultrasonic knife handle according to claim 6, characterized in that: A transducer spiral air path is arranged on the outer peripheral side of the transducer housing, and the transducer spiral air path forms the gap and connects the second branch of the transducer with the third branch of the transducer.

8. The ultrasonic knife handle according to claim 1, characterized in that: It also includes a horn fixedly connected to the transducer, a flange portion of the horn connected to the inner wall of the transducer housing, and a second through hole is opened on the flange portion, and the second through hole connects the inner cavity with the external environment.

9. The ultrasonic knife handle according to claim 1, characterized in that: The fixing component is provided with a hollow guide air nozzle, one end of which extends into the air inlet passage, and the guide air nozzle can move in the air inlet passage along the axial direction of the knife body, and the other end of the guide air nozzle can be connected to an external cooling air source to supply cooling airflow to the air inlet passage.

10. The ultrasonic knife handle according to claim 9, characterized in that: An air nozzle elastic member is arranged between the guide air nozzle and the fixed component, one end of the air nozzle elastic member is connected to the air inlet channel, and the other end extends into the guide air nozzle, so that when the ultrasonic knife handle is assembled in place, the guide air nozzle is driven by the elastic force of the air nozzle elastic member to press against the supply end of the external cooling air source.

11. An ultrasonic processing device, characterized in that: It comprises the ultrasonic knife handle described in any one of claims 1-10, and also comprises a transmitting seat, wherein the transmitting seat is used to install a power supply side connection end which can be electrically connected to the conductive component, and the transmitting seat is provided with a second channel which can be connected to the air inlet channel, and the second channel can be connected to an external cooling air source to supply cooling airflow to the air inlet channel.

12. The ultrasonic processing equipment according to claim 11, characterized in that: The ultrasonic knife handle also includes a hollow guide air nozzle, one end of which extends into the air inlet channel, and the guide air nozzle can move in the air inlet channel along the axial direction of the knife body, and the other end of the guide air nozzle can extend into the second channel to connect the air inlet channel with the second channel.

13. The ultrasonic processing equipment according to claim 12, characterized in that: An air core which can move along the axial direction of the blade body is also provided in the second channel. An air core channel which runs through to the front end of the air core is opened inside the air core. The air core channel is connected with the second channel, and the front end of the air core can be pressed against the rear end of the guide air nozzle to realize the connection between the air core channel and the air inlet channel.

14. The ultrasonic processing equipment according to claim 13, characterized in that: A step portion surrounding the air core is provided in the second channel, the air core passes through the step portion, and an air core elastic member is provided between the air core and the step portion, so that when the ultrasonic knife handle is assembled in place, the air core is pressed tightly against the guide air nozzle under the elastic force of the air core elastic member.

15. The ultrasonic processing equipment according to claim 14, characterized in that: An air inlet hole is provided on the side wall of the air core near the rear end thereof, the air inlet hole is communicated with the air core channel and the second channel; and A sealing groove is arranged at the rear side of the air inlet hole, a sealing ring is filled in the sealing groove, and the sealing groove is sealed with the rear side end surface of the step portion through the sealing ring.

16. A machine tool, characterized in that: It comprises a machine tool body, a spindle arranged on the machine tool body and the ultrasonic machining equipment according to any one of claims 11 to 15, wherein the transmitting seat is installed on the spindle.

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