Ultrasonic cutter handle, ultrasonic machining equipment and machine tool

Abstract

The invention discloses an ultrasonic cutter handle, ultrasonic machining equipment and a machine tool, and relates to the technical field of machining equipment, the ultrasonic cutter handle comprises a cutter body, a transducer shell, an outer shell assembly and a wireless receiving assembly, the cutter body and the transducer shell are coaxially arranged, and the cutter body and the transducer shell are detachably connected to form a mounting part contracted in the transducer shell; the outer shell assembly sleeves the mounting part through a bearing; the wireless receiving assembly is arranged on the peripheral side of the cutter body, and the wireless receiving assembly is arranged on the rear side of the mounting part and communicates with the transducer in the transducer shell. According to the ultrasonic knife handle, the bearing is arranged on the mounting part in a sleeving mode, the specification size of the bearing can be effectively reduced, the linear speed of the inner ring of the bearing can be effectively reduced under the condition that the ultrasonic knife handle rotates at a high speed, and therefore the heating value of the bearing is reduced, and the service life of the bearing is prolonged; the problem that an existing ultrasonic knife handle needs frequent maintenance and bearing replacement is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical processing equipment, and in particular to an ultrasonic tool holder, 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 tool handles mainly include contact and non-contact. Among them, the non-contact type generally adopts a wireless transmission structure for power supply. The transmitting unit and the receiving unit of the wireless transmission structure cooperate with each other. When the transmitting unit is supplied with alternating current, the transmitting unit generates an induced magnetic field, and the magnetic flux lines circulate between the transmitting unit and the receiving unit, realizing the inductive communication between the transmitting unit and the receiving unit, thereby providing a high-frequency vibration energy source for the ultrasonic machining device. Compared with the contact power supply method, the non-contact power supply method can reduce the heat generated by the ultrasonic tool handle during operation, and is particularly suitable for the scene where the ultrasonic tool handle rotates at high speed (the tool speed reaches 20,000-40,000 revolutions per minute).

[0004] The transducer of the ultrasonic knife handle is prone to heat up during high-power output. Overheated transducers need to be shut down for cooling, which causes the ultrasonic knife handle to fail to work properly. Therefore, some existing ultrasonic knife handles will add an outer shell with a cooling structure on the outside of the transducer to reduce the heat generated by the transducer during high-power output. Or, an outer shell with corresponding functions is provided for anti-fall and dust prevention. Usually, the outer shell structure of the ultrasonic knife handle is generally connected to the outer periphery of the transducer shell through a bearing, resulting in a larger size of the bearing. In this way, when the ultrasonic knife handle rotates at high speed, the linear speed of the inner ring of the bearing is high, causing the bearing to generate a lot of heat, resulting in serious heating of the bearing, affecting the service life of the bearing, and further causing the ultrasonic knife handle to require frequent maintenance and replacement of bearings. Summary of the invention

[0005] The purpose of the present invention is to provide an ultrasonic tool holder, ultrasonic processing equipment and machine tool, which can solve the problem that the existing ultrasonic tool holder needs frequent maintenance and replacement of bearings by optimizing the assembly structure of the cooling structure and reducing the outer diameter of the bearing.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An ultrasonic knife handle comprises a knife body, a transducer housing, an outer housing component and a wireless receiving component, wherein:

[0008] The blade body is coaxially arranged with the transducer housing, and the blade body is detachably connected with the transducer housing, and forms a mounting portion contracted in the transducer housing, and the outer housing assembly is sleeved on the mounting portion through a bearing;

[0009] The wireless receiving component is arranged on the outer peripheral side of the blade body, and the wireless receiving component is arranged on the rear side of the mounting portion and is electrically connected to the transducer in the transducer housing.

[0010] In some embodiments, the blade body has a main body portion and a first protrusion located at the front end of the main body portion, the outer diameter of the first protrusion is smaller than the outer diameter of the main body portion adjacent to the mounting portion, and the transducer housing has a housing portion and a second protrusion located at the rear end of the housing portion, the outer diameter of the second protrusion is smaller than the outer diameter of the housing portion adjacent to the mounting portion, and the second protrusion is nested and connected with the first protrusion so that the first protrusion and the second protrusion form the mounting portion; the bearing sleeve is arranged on the first protrusion.

[0011] In some embodiments, a first electrical connection channel is provided in the blade body, and the first electrical connection channel passes through the outside of the blade body to be connected to the wireless receiving component; and

[0012] A second electrical connection channel is disposed in the mounting portion, and one end of the second electrical connection channel is connected to the first electrical connection channel, so that the first electrical connection channel and the second electrical connection channel form an electrical connection passage.

[0013] In some embodiments, the blade body has a first protrusion extending toward the front end, the transducer housing has a second protrusion extending toward the rear end, the second protrusion is embedded in the first protrusion, so that the first protrusion and the second protrusion form the mounting portion, and,

[0014] The second electrical connection channel is disposed in the first protrusion and passes through to the front end of the blade body; the first electrical connection channel is connected to the rear end of the second electrical connection channel; and,

[0015] A third electrical connection channel is provided in the transducer housing, and the third electrical connection channel is communicated with the second electrical connection channel and is connected to the transducer.

[0016] In some embodiments, the ultrasonic knife handle includes a first conductive member and a second conductive member, wherein the first conductive member is disposed in the second electrical connection channel and is electrically connected to the wireless receiving component; the second conductive member is disposed in the third electrical connection channel and can form a plug-in fit with the first conductive member, and the second conductive member is electrically connected to the transducer.

[0017] In some embodiments, an insulating member is disposed in the transducer housing, and the insulating member is arranged at least on the outer peripheral side of the transducer and is spaced apart from the transducer; and,

[0018] A wire groove is provided on the outer side of the insulating member, and the wire groove is connected to the inner side of the insulating member.

[0019] In some embodiments, the transducer includes a piezoelectric vibrator, the insulating member extends to a rear end of the piezoelectric vibrator, and,

[0020] The lead groove extends from the rear end of the piezoelectric vibrator to the outer peripheral side of the piezoelectric vibrator, and the projections of the first conductive member and the second conductive member in the front-rear direction are located in the lead groove.

[0021] In some embodiments, the transducer housing is provided with an inner cavity for accommodating the transducer, and the inner cavity is connected to the external environment; and the outer shell assembly is provided with a first cooling air path connected to an external cooling air source, and the first cooling air path is connected to the inner cavity.

[0022] In some embodiments, a sealing cover plate is installed on the outside of the transducer housing, the sealing cover plate is arranged on the front side of the bearing and located on the rear side of the inner cavity, and the outer shell assembly extends to the outer peripheral side of the transducer housing, so that the transducer housing, the sealing cover plate and the outer shell assembly form a first channel, and the first cooling air path is connected to the inner cavity through the first channel.

[0023] In some embodiments, an airflow turbine is disposed in the first channel and is fixed relative to the transducer housing so that the airflow turbine rotates synchronously with the transducer housing, thereby driving the airflow in the first channel into the interior of the transducer housing.

[0024] In some embodiments, a plurality of air inlet holes penetrating into the inner cavity are provided at one end of the transducer housing facing the sealing cover plate, and the airflow turbine includes a plurality of turbine blades, the plurality of turbine blades are arranged at circumferential intervals along the transducer housing, and there is at least one air inlet hole between two adjacent turbine blades.

[0025] In some embodiments, the airflow turbine is integrally formed with the sealing cover plate.

[0026] In some embodiments, the outer shell assembly includes a bearing sleeve and an airflow seat, wherein:

[0027] The bearing sleeve is connected to the outer ring of the bearing, and the bearing sleeve extends to the outer peripheral side of the transducer housing, and forms the first channel together with the transducer housing and the sealing cover plate;

[0028] The airflow seat is connected to the outer peripheral side of the bearing sleeve and forms a second channel between the airflow seat and the bearing sleeve. The second channel is connected to the first channel, and the airflow seat is provided with a first air inlet channel connected to an external cooling air source. The first air inlet channel is connected to the second channel in sequence to form the first cooling air path.

[0029] In some embodiments, a flow guide is disposed in the second channel, and a flow guide groove connected to the second channel is formed on the flow guide, and the flow guide groove is spirally arranged axially in a front-to-rear direction on an outer side of the flow guide.

[0030] In some embodiments, the sealing cover plate, the outer housing assembly and the bearing enclose a gap space, and a sealing fit is provided between the first channel and the gap space to separate the first channel from the gap space.

[0031] In some embodiments, the outer shell component is provided with a pressure relief hole communicating with the gap space, and the pressure relief hole is communicated to the outside of the outer shell component to discharge the gas in the gap space.

[0032] In some embodiments, an insulating member is provided in the transducer housing, and the insulating member is arranged at least on the outer peripheral side of the transducer and is spaced apart from the transducer, so that a cooling channel is formed between the insulating member and the transducer, and the cooling channel is connected to the inner cavity.

[0033] In some embodiments, an air inlet hole penetrating into the inner cavity is provided at one end of the transducer housing facing the bearing, and exhaust holes are arranged through the periphery of the transducer housing, and the air inlet hole and the exhaust holes are connected to the cooling channel; and the cross-sectional profile of the outer peripheral side of the transducer housing is circular, and the exhaust holes are arranged extending along the tangent direction of the circle.

[0034] In some embodiments, the front end of the transducer housing is connected to a horn, and the front end of the horn is used to connect to a tool; and,

[0035] The outer shell assembly is provided with a first air duct, a second air duct, and a second air inlet passage connected to an external cooling air source, wherein the first air duct is arranged to extend in the front-to-back direction, the second air duct is arranged in the circumferential direction of the amplitude transformer, and the second air inlet passage, the first air duct and the second air duct are connected in sequence to form a second cooling air path, and,

[0036] A nozzle for cooling the tool is arranged along the arrangement path of the second air duct, and the nozzle is communicated with the second air duct.

[0037] In some embodiments, the outer shell assembly includes a first shell set and a second shell set, the first shell set is arranged at an interval on the outer peripheral side of the transducer shell, and the second shell set is arranged on the outer peripheral side of the first shell set, so that a third channel accommodating the first air duct and the second air duct is formed between the second shell set and the first shell set, and a jet port connected to the nozzle is opened on the third channel, and the second air duct is connected to the nozzle through the jet port.

[0038] In some embodiments, the outer shell assembly is also provided with a first cooling air path connected to the interior of the transducer shell, a fourth channel is formed between the first shell and the transducer shell, and an exhaust port facing the front is formed between the first shell and the amplitude transformer; the interior of the transducer shell, the exhaust hole on the transducer shell, the fourth channel and the exhaust port are connected in sequence, and the first cooling air path and the second cooling air path are arranged independently of each other.

[0039] In some embodiments, the third channel is filled with a heat-insulating material to form a heat-insulating layer covering the first air duct and the second air duct.

[0040] In some embodiments, a receiving slot is fixedly connected to the outer peripheral side of the blade body, the wireless receiving component is arranged in the receiving slot, and a positioning slot is provided on the outer peripheral side of the receiving slot; and

[0041] The outer shell component is provided with a first positioning component and a second positioning component that can move relative to the outer shell component. The movement of the second positioning component relative to the outer shell component can drive the first positioning component to move, so that the first positioning component extends into the positioning groove, so that the receiving groove body and the outer shell component are relatively stationary; and the first positioning component can be driven out of the positioning groove, so that the receiving groove body and the outer shell component can rotate relative to each other.

[0042] In some embodiments, the first positioning assembly includes a swing block, which is rotatably connected to the outer shell assembly to reciprocate toward or away from the receiving slot to allow the swing block to extend into the positioning slot or to escape from the positioning slot.

[0043] In some embodiments, the first positioning assembly further includes a slider, the slider being configured to be able to reciprocate toward the knife body at the outer peripheral side of the knife body; and,

[0044] One end of the swing block away from the receiving slot is rotatably connected to the slider, and one end of the slider away from the knife body abuts against the second positioning assembly, so that the slider is driven close to the knife body, which can drive the swing block to rotate, so that the other end of the swing block is disengaged from the positioning slot.

[0045] In some embodiments, a first elastic member is further provided on the outer shell assembly, and one end of the first elastic member abuts against one end of the slider close to the knife body, and the other end of the first elastic member is fixedly provided; and,

[0046] One end of the slider close to the second positioning component is rotatably connected to a pulley, and the outer edge of the pulley extends out of the slider, so that the pulley is in rolling contact with the second positioning component, so that the second positioning component can drive the slider close to the knife body through the pulley.

[0047] In some embodiments, the second positioning assembly includes a positioning column that can move along the axial direction of the knife body, and the end of the sliding block away from the knife body can abut against the positioning column to drive the swing block out of the positioning groove; and

[0048] The second positioning assembly also includes a limiting block connected to the front end of the positioning column, and the limiting block is provided with an avoidance position recessed toward its inner side, so that the sliding block can move away from the knife body and extend into the avoidance position, thereby driving the swing block to rotate and drive the swing block to extend into the positioning groove.

[0049] In some embodiments, an inclined surface inclined to the axial direction of the blade body is provided on the outer peripheral side of the limiting block, and the inclined surface is arranged on the rear side of the avoidance position and continues to the outer peripheral surface of the positioning column, and the inclined surface gradually converges toward the front side of the limiting block and is connected to the avoidance position.

[0050] In some embodiments, a second elastic member is further provided on the outer shell assembly, one end of the second elastic member abuts against the front end of the second positioning assembly, and the other end of the second elastic member is fixedly disposed.

[0051] In some embodiments, the outer shell assembly is provided with a first mounting slot, a second mounting slot and a third mounting slot, wherein:

[0052] The first mounting groove is arranged on the outer peripheral side of the blade body and extends toward the blade body, and the slider can reciprocate in the first mounting groove;

[0053] The second mounting groove is arranged along the axial direction of the blade body, and the front end of the second mounting groove is communicated with the first mounting groove, and the rear end of the second mounting groove is communicated with the positioning groove; the swing block is rotatably connected in the second mounting groove, and the rear end of the swing block extends out of the second mounting groove;

[0054] The third mounting groove is arranged along the axial direction of the knife body, and the second positioning assembly reciprocates in the third mounting groove, and the end of the first mounting groove away from the knife body is connected to the third mounting groove, so that the sliding block can extend out of the first mounting groove and enter the third mounting groove.

[0055] Based on the aforementioned ultrasonic tool handle, the present invention further provides an ultrasonic machining device, comprising the aforementioned ultrasonic tool handle.

[0056] Based on the aforementioned ultrasonic machining equipment, the present invention further provides a machine tool, comprising a machine tool body, a spindle arranged on the machine tool body, and the aforementioned ultrasonic machining equipment.

[0057] Compared with the prior art, the ultrasonic tool holder, ultrasonic processing equipment and machine tool implemented by the present invention have the following beneficial effects:

[0058] The ultrasonic knife handle of the present invention is formed with a knife body and a transducer housing that are detachably connected, thereby forming a mounting portion at the connection position of the knife body and the transducer housing. The mounting portion is retracted to the transducer housing so that the outer diameter of the mounting portion is smaller than the outer diameter of the transducer housing adjacent to the mounting portion. In this way, the bearing sleeve is arranged on the mounting portion, which can effectively reduce the specification size of the bearing. When the ultrasonic knife handle rotates at a high speed, the linear speed of the inner ring of the bearing can be effectively reduced, thereby reducing the heat generated by the bearing, thereby increasing the service life of the bearing and solving the problem that the existing ultrasonic knife handle needs frequent maintenance and replacement of bearings.

[0059] Furthermore, the ultrasonic knife handle of the present invention provides an electrical connection path within the knife body and the mounting portion, so that the wireless receiving component can be installed on the knife body and be connected to the transducer. Furthermore, the built-in electrical connection path can ensure that the wires between the wireless receiving component and the transducer will not be affected by the high-speed rotation of the ultrasonic knife handle, thereby avoiding interference between the wires and the outer shell component and the bearing, which would affect the normal operation of the ultrasonic knife handle.

[0060] Furthermore, the ultrasonic knife handle of the present invention is provided with a first air inlet channel and a second air inlet channel which are independent of each other, so that the first cooling air path and the second cooling air path are independent of each other and do not interfere with each other. In this way, the ultrasonic knife handle of the present invention can use the first cooling air path and the second cooling air path to independently supply air to the transducer and the cutter according to the heating conditions of the transducer and the cutter, thereby realizing independent cooling of the transducer and the cutter.

[0061] Furthermore, the ultrasonic knife handle of the present invention is provided with a limiting structure, so that when the ultrasonic knife handle is detached from the main shaft, the first positioning component can extend into the positioning groove, so that the relative position of the knife body and the outer shell assembly is fixed, thereby keeping the knife body and the outer shell assembly relatively still. When the ultrasonic knife handle is connected to the main shaft, the limiting structure can unlock from the positioning groove, so that the knife body and the transducer housing can rotate relative to the outer shell assembly without affecting the normal operation of the ultrasonic knife handle.

[0062] The present invention also provides an ultrasonic machining device and a machine tool, which use the ultrasonic tool handle and have the beneficial effects of the ultrasonic tool handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 is a schematic diagram of an ultrasonic knife handle in an embodiment of the present invention;

[0064] Figure 2 This is a schematic diagram of the first matching of the tool handle and the transducer housing in an embodiment of the present invention;

[0065] Figure 3 is a schematic diagram of a second matching method between the tool handle and the transducer housing in an embodiment of the present invention;

[0066] Figure 4 yes Figure 3 A schematic diagram of a transducer housing in the illustrated structure;

[0067] Figure 5 is a top view of the ultrasonic tool handle in an embodiment of the present invention, indicating the position of the AA section line;

[0068] Figure 6 yes Figure 5 Sectional view of AA in the middle;

[0069] Figure 7 yes Figure 6 Enlarged view of middle B;

[0070] Figure 8 yes Figure 6 Enlarged view of middle C;

[0071] Fig. 9 yes Figure 6 Enlarged view of middle D;

[0072] Fig.10 is a schematic diagram of an insulating member in an embodiment of the present invention;

[0073] Fig.11 yes Figure 6 A schematic diagram of the airflow path of the structure shown;

[0074] Fig.12 is a schematic diagram of a flow guide member in an embodiment of the present invention;

[0075] Fig.13 is a schematic diagram of an airflow turbine in an embodiment of the present invention;

[0076] Fig.14 yes Figure 6 A schematic diagram of a transducer housing in the illustrated structure;

[0077] Fig.15 is a top view of the ultrasonic tool handle in an embodiment of the present invention, indicating the position of the EE section line;

[0078] Fig.16 yes Fig.15 Sectional view of EE in the figure;

[0079] Fig.17 yes Fig.15 Enlarged view of middle F;

[0080] Fig.18 is a schematic diagram of a second housing in an embodiment of the present invention;

[0081] Fig.19 yes Fig.17 A schematic diagram of the airflow path of the structure shown;

[0082] Fig. 20 is a top view of the ultrasonic shank in an embodiment of the present invention, indicating the position of the GG section line;

[0083] Fig.21 yes Fig. 20 Cross-sectional view of middle GG;

[0084] Fig. 22 yes Fig.21 Enlarged view of middle H;

[0085] Fig.23 is a schematic diagram of a second positioning assembly in an embodiment of the present invention;

[0086] Fig.24 Schematic cross-sectional view of the airflow seat in the embodiment of the present invention.

[0087] In the figure, 100, ultrasonic knife handle;

[0088] 1. Blade body; 1a. First protrusion; 1a1. First mounting hole; 1a10. Limiting ring; 1b. Main body; 2. Transducer assembly; 2a. Transducer housing; 2a1. Inner cavity; 2a2. Housing; 2a3. Second protrusion; 2a4. Second mounting hole; 2a40. Large diameter section; 2a41. Small diameter section; 2b. Transducer; 2b1. Piezoelectric vibrator; 3. Wireless receiving assembly; 3a. Receiving magnet; 4. Mounting part; 5. Outer housing assembly Component; 5a, bearing jacket; 5b, airflow seat; 6, first electrical connection channel; 7, second electrical connection channel; 8, bearing; 9, first conductive component; 10, second conductive component; 11, third electrical connection channel; 12, insulating component; 13, cooling channel; 14, first cooling air path; 14a, first channel; 14b, second channel; 14c, first air inlet channel; 15, wire groove; 16, third cooling air path; 16a, air inlet hole; 16b, exhaust hole; 17. air guide; 18. air guide groove; 19. air flow turbine; 19a. turbine blade; 20. clearance space; 21. bearing gland; 22. pressure relief hole; 23. first housing; 24. fourth channel; 24a. exhaust port; 25. second housing; 26. third channel; 26a. jet port; 27. second cooling air path; 27a. second air inlet channel; 28. nozzle; 29. ​​first air guide pipe; 30. second air guide pipe; 31. receiving tank ; 32, positioning groove; 33, first positioning assembly; 33a, swing block; 33b, slider; 34, second positioning assembly; 34a, positioning column; 34b, limiting block; 34b1, avoidance position; 34b10, inclined surface; 35, first mounting groove; 36, second mounting groove; 37, first elastic member; 38, third mounting groove; 39, pulley; 40, second elastic member; 41, locking member; 42, amplitude rod; 43, tool; 44, sealing cover plate. DETAILED DESCRIPTION

[0089] The specific implementation of the present invention is further described in detail below 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.

[0090] In the description of the present invention, 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 invention can be understood according to the specific circumstances.

[0091] 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.

[0092] 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 should not 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.

[0093] Example

[0094] refer to Figure 1-24 The embodiment of the present invention provides an ultrasonic knife handle 100, wherein the end side of the ultrasonic knife handle 100 connected to the machining tool is the front side / front end / front, and the other end side opposite thereto is the rear side / rear end / rear, and the ultrasonic knife handle 100 includes a knife body 1, a transducer assembly 2 and a wireless receiving assembly 3, wherein the knife body 1 is generally used to connect with the spindle of a machine tool, and the transducer assembly 2 includes a transducer housing 2a and a transducer 2b, and an inner cavity 2a1 is provided in the transducer housing 2a to accommodate the transducer 2b. The knife body 1 is detachably connected to the transducer housing 2a, and is formed with a mounting portion 4 that is contracted in the transducer housing 2a.

[0095] The ultrasonic knife handle 100 of this embodiment uses a wireless transmission component to realize electrical signal transmission. The wireless transmission component generally includes a wireless transmitting component (not shown in the figure) and a wireless receiving component 3, wherein, as an example, the wireless transmitting component generally has a transmitting magnet and a transmitting coil, the transmitting coil is arranged in the transmitting magnet, and the transmitting magnet can generate a magnetic field by passing an electrical signal into the transmitting coil, while the wireless receiving component 3 generally has a receiving magnet and a receiving coil (not shown in the figure), the receiving magnet receives the magnetic field generated by the transmitting magnet, and based on magnetoelectric induction, the receiving coil generates a current.

[0096] It should be noted that in the prior art, the ultrasonic knife handle that uses wireless transmission to transmit electrical signals usually has an integrated structure. In the present application, considering factors such as dust prevention, drop resistance, and transducer cooling, the ultrasonic knife handle 100 is provided with an outer shell assembly 5 on the periphery of the knife handle body, and the outer shell assembly 5 is used to cover a part of the structure of the knife handle body, or to install a cooling gas path. The outer shell assembly 5 is sleeved on the periphery of the knife handle body through a bearing 8. When the ultrasonic knife handle 100 rotates at high speed, the heating problem of the bearing 8 needs to be considered. Therefore, the ultrasonic knife handle 100 sleeves the bearing 8 on the mounting portion 4 formed by the detachable connection between the knife body 1 and the transducer housing 2a, and the size of the mounting portion 4 is smaller than the size of the transducer housing 2a adjacent to the mounting portion 4. This can not only reduce the size of the bearing 8 and reduce the heating of the bearing 8, but also will not affect the size of the transducer 2b. The design of the ultrasonic knife handle 100 is described in detail one by one below.

[0097] It is understandable that the transducer 2b generally includes a piezoelectric vibrator 2b1, which is used to convert electromagnetic energy into mechanical energy. The horn 42 installed at the front end of the transducer 2b is a component for expanding the mechanical amplitude. Generally speaking, the piezoelectric vibrator 2b1 is installed in the inner cavity 2a1, and the horn 42 extends from the inner cavity 2a1 to the front side of the transducer assembly 2 and is connected to the processing tool 43. The specific working principle of the transducer 2b belongs to the existing design and will not be repeated here. However, it should be noted that the performance of the transducer assembly 2 is closely related to the size of the transducer 2b, such as the size of the piezoelectric vibrator 2b1, and the piezoelectric vibrator 2b1 is installed inside the inner cavity 2a1 of the transducer housing 2a, so the size of the inner cavity 2a1 inside the transducer housing 2a generally reflects the performance of the transducer assembly 2. Changing the size of the inner cavity 2a1 will affect the performance of the transducer assembly 2, such as the output power.

[0098] It should be noted that there are various ways to realize the detachable connection between the blade body 1 and the transducer housing 2a, so there are also many ways to form the mounting portion 4. Generally speaking, the mounting portion 4 is formed at the connection position between the blade body 1 and the transducer housing 2a, and it is only necessary to ensure that the blade body 1 and the transducer housing 2a can be detachably connected. For example, in the first preset situation, a part of the structure of the blade body 1 is detachably connected to a part of the structure of the transducer housing 2a, thereby forming the mounting portion 4. At this time, the mounting portion 4 includes a part of the structure of the blade body 1 and a part of the structure of the transducer housing 2a. Of course, in this preset situation, since the mounting portion 4 includes a part of the structure of the blade body 1, the mounting portion 4 is contracted in the layout of the transducer housing 2a, and the outer diameter of the mounting portion 4 is smaller than the outer diameter of the other part of the structure of the transducer housing 2a adjacent to the mounting portion 4.

[0099] Alternatively, in the second preset situation, the front end of the blade body 1 is provided with a detachable connection structure, and the rear end of the transducer housing 2a is also provided with a detachable connection structure, and the two connection structures are detachably connected to each other, and the detachable connection between the blade body 1 and the transducer housing 2a can also be realized, thereby forming the mounting portion 4. Of course, in this preset situation, the connection structure is an additional structure independent of the blade body 1 and the transducer housing 2a, and the mounting portion 4 is contracted in the layout of the transducer housing 2a, which will present that the outer diameter of the connection structure is smaller than the outer diameter of the transducer housing 2a adjacent to the mounting portion 4.

[0100] Alternatively, in the third preset situation, a detachable connection structure is provided at the front end of the blade body 1 or the rear end of the transducer housing 2a, and the connection structure is detachably connected to the transducer housing 2a or the blade body 1 without the connection structure, and the detachable connection between the blade body 1 and the transducer housing 2a can also be achieved, thereby forming the mounting portion 4. In this preset situation, the connection structure is also an additional structure independent of the blade body 1 and the transducer housing 2a, and the mounting portion 4 is contracted in the layout of the transducer housing 2a, which will present that the outer diameter of the connection structure is smaller than the outer diameter of the transducer housing 2a adjacent to the mounting portion 4.

[0101] The ultrasonic knife handle 100 of this embodiment is further described below by taking the first preset situation as an example.

[0102] refer to Figure 2-4As an example of this embodiment, the transducer housing 2a is a cylindrical structure, which includes a housing portion 2a2 and a second protruding portion 2a3 arranged in sequence along its own axial direction, wherein the housing portion 2a2 is located at the front side of the second protruding portion 2a3, and an inner cavity 2a1 is arranged in the housing portion 2a2 to accommodate the transducer 2b; the second protruding portion 2a3 extends toward the rear end of the transducer housing 2a, and the outer diameter of the second protruding portion 2a3 is smaller than the outer diameter of the housing portion 2a2, so that the second protruding portion 2a3 forms a structure protruding from the rear side of the housing portion 2a2, so that the inner cavity 2a1 is always arranged in the housing portion 2a2, and the change in the specifications and dimensions of the second protruding portion 2a3 will not affect the specifications and dimensions of the inner cavity 2a1, so that the performance of the transducer 2b can be guaranteed.

[0103] The blade body 1 is coaxially arranged with the transducer housing 2a, and the blade body 1 has a first protrusion 1a and a body 1b arranged in sequence along its own axial direction, wherein the body 1b is the main structure of the blade body 1, and is used to connect the spindle of the processing machine tool, the first protrusion 1a is located at the front side of the body 1b, and the outer diameter of the first protrusion 1a is smaller than the outer diameter of the part of the body 1b adjacent to the mounting portion 4. The first protrusion 1a and the second protrusion 2a3 are detachably connected, and thus the blade body 1 and the transducer housing 2a are detachably connected, so that the mounting portion 4 is formed at the connection between the first protrusion 1a and the second protrusion 2a3.

[0104] It can be understood that the blade body 1 of this embodiment is a shaft structure. Since the blade body 1 and the transducer housing 2a are coaxially arranged, and the first protrusion 1a of the blade body 1 is connected to the second protrusion 2a3 of the transducer housing 2a, 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 of the processing machine tool, so that the blade body 1 can be driven by the spindle to rotate, so that the transducer assembly 2 and the processing tool 43 connected to the first protrusion 1a can rotate synchronously to perform the processing action.

[0105] It should be noted that the first protruding portion 1a and the main body portion 1b divided by the blade body 1, and the shell portion 2a2 and the second protruding portion 2a3 divided by the transducer housing 2a are only used to illustrate the matching method of the blade body 1 and the transducer housing 2a to achieve a detachable connection. The shell portion 2a2 and the second protruding portion 2a3, and the main body portion 1b and the first protruding portion 1a are not limited to an integral structure. In other preset situations, the shell portion 2a2 and the second protruding portion 2a3, and the main body portion 1b and the first protruding portion 1a can also be a split two-stage structure. In specific applications, the structure of the blade body 1 and the transducer housing 2a can be selected to adopt an integral connection structure or a segmented structure according to the application scenario.

[0106] It should be noted that the mounting portion 4 formed by the first protrusion 1a and the second protrusion 2a3 being nested and matched with each other can be implemented in at least two ways:

[0107] First, reference Figure 2 , the outer diameter of the first protrusion 1a is larger than the outer diameter of the second protrusion 2a3, a first mounting hole 1a1 is provided in the blade body 1, which passes through the first protrusion 1a and the main body 1b along the axial direction (i.e., the front-to-back direction) of the blade body 1, and the inner wall of the first mounting hole 1a1 protrudes toward the inside of the first mounting hole 1a1 to form a limiting ring 1a10; the second protrusion 2a3 extends toward the rear side along the axial direction of the blade body 1, and a second mounting hole 2a4 extending along the axial direction of the blade body 1 is provided in the second protrusion 2a3, the second protrusion 2a3 extends into the first mounting hole 1a1, and is located at the front side of the limiting ring 1a10, and the second protrusion 2a3 is limited in the axial position of the blade body 1 by the limiting ring 1a10, so that the second protrusion 2a3 is installed in the first mounting hole 1a1, and the first protrusion 1a is wrapped around the outer peripheral side of the second protrusion 2a3, thereby forming a connection between the second protrusion 2a3 and the first protrusion 1a, i.e., the mounting portion 4;

[0108] Second, reference Figure 3-4 The outer diameter of the first protrusion 1a is smaller than the outer diameter of the second protrusion 2a3, the first protrusion 1a extends toward the front side along the axial direction of the blade body 1, and a first mounting hole 1a1 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 second protrusion 2a3 extends toward the rear side along the axial direction of the blade body 1, and the transducer housing 2a is provided with a second mounting hole 2a4 extending along the axial direction of the blade body 1, the second mounting hole 2a4 is a stepped hole, which includes a large diameter section 2a40 and a small diameter section 2a41 that are interconnected, the first protrusion 1a is installed in the large diameter section 2a40 of the second mounting hole 2a4, so that the second protrusion 2a3 is wrapped around the outer peripheral side of the first protrusion 1a, and forms a connection between the second protrusion 2a3 and the first protrusion 1a, that is, the mounting portion 4.

[0109] 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 2 , 6-9, as an example of this embodiment, a locking member 41 is provided in the first mounting hole 1a1, and the locking member 41 passes through the limit ring 1a10 along the axial direction of the blade body 1, extends into the second mounting hole 2a4, and is tightly connected with the second protrusion 2a3 of the transducer housing 2a, so as to realize the detachable connection between the first protrusion 1a and the second protrusion 2a3. In addition, the outer peripheral surface of the second protrusion 2a3 can be set as a conical surface, and correspondingly, the inner peripheral surface of the first protrusion 1a is also set as a conical surface, so that when the locking member 41 locks the first protrusion 1a and the second protrusion 2a3, the outer peripheral surface of the second protrusion 2a3 can be closely fitted with the inner peripheral surface of the first protrusion 1a, so that the first protrusion 1a and the second protrusion 2a3 are closely connected.

[0110] Of course, in Figure 3-4 In the structure shown, the locking member 41 has another matching mode with the first protrusion 1a and the second protrusion 2a3. Figure 3-4 7. As an example of this embodiment, a locking member 41 is provided in the first mounting hole 1a1. The locking member 41 penetrates the first protruding portion 1a along the axial direction of the blade body 1, and extends into the small diameter section 2a41 of the second mounting hole 2a4, and is tightly connected with the second protruding portion 2a3, so as to realize the detachable connection between the first protruding portion 1a and the second protruding portion 2a3. At this time, the outer peripheral surface of the first protruding portion 1a can be set as a conical surface, and correspondingly, the inner peripheral surface of the large diameter section 2a40 of the second mounting hole 2a4 is also set as a conical surface. In this way, when the locking member 41 locks the first protruding portion 1a and the second protruding portion 2a3, the outer peripheral surface of the first protruding portion 1a can be closely fitted with the inner peripheral surface of the large diameter section 2a40 of the second mounting hole 2a4, so that the first protruding portion 1a and the second protruding portion 2a3 are tightly connected.

[0111] Of course, the locking member 41 can also be installed in the second mounting hole 2a4, but the disassembly is more complicated than that of the first mounting hole 1a1. Since the inner cavity 2a1 of the housing portion 2a2 is equipped with the transducer 2b, if the locking member 41 is arranged in the second mounting hole 2a4 on the side of the transducer housing 2a, when the blade 1 and the transducer housing 2a need to be disassembled, the transducer 2b needs to be removed first, and then the locking member 41 needs to be loosened from the second mounting hole 2a4 to achieve the disassembly of the blade 1 and the transducer housing 2a. If the locking member 41 is installed in the first mounting hole 1a1 on the side of the blade 1, when the ultrasonic blade handle 100 is removed from the main shaft, the locking member 41 can be directly loosened to achieve the disassembly of the blade 1 and the transducer housing 2a.

[0112] It should be noted that the mounting portion 4 formed in different situations will always shrink to the transducer housing 2a, that is, the outer diameter of the mounting portion 4 will be smaller than the outer diameter of other positions of the transducer housing 2a adjacent to the mounting portion 4, so that the mutually connected blade body 1 and the transducer housing 2a present a profile that is recessed from the outer surface at the location of the mounting portion 4, so that an installation space, such as an annular groove, is usually formed at the location of the mounting portion 4. Utilizing this annular groove, the ultrasonic knife handle 100 is sleeved with a bearing 8 on the mounting portion 4, and an outer shell assembly 5 is sleeved on the bearing 8, and the outer shell assembly 5 is arranged on the outer peripheral side of the knife handle body. With the cooperation of the outer shell assembly 5, the dustproof effect and the anti-fall effect of the transducer housing 2a and the transducer 2b can be improved, and the transducer housing 2a and the transducer 2b inside thereof can be protected from external influences.

[0113] The ultrasonic knife handle 100 of this embodiment uses a wireless transmission component to realize electrical signal transmission. The wireless transmitting component and the wireless receiving component 3 are usually arranged in a top-to-bottom arrangement or in an inside-outside arrangement. Figure 6-24 The ultrasonic knife handle 100 of this embodiment is further described in the manner that the wireless transmitting component and the wireless receiving component 3 are arranged up and down.

[0114] When the wireless transmission component is in operation, the wireless transmitting component and the wireless receiving component 3 need to be arranged relative to each other and close to each other. If the wireless receiving component 3 is arranged on the mounting portion 4, it may hinder the wireless transmitting component from cooperating with it. Therefore, in the ultrasonic knife handle 100 of this embodiment, the wireless receiving component 3 is arranged on the main body 1b, on the outer peripheral side of the knife body 1, and arranged on the rear side of the mounting portion 4. By connecting the wireless receiving component 3 to the transducer 2b in the transducer housing 2a, the wireless transmission component can transmit the electrical signal to the transducer 2b, so that the transducer 2b works.

[0115] It should be noted that the wireless receiving component 3 is connected to the outer peripheral side of the main body 1b and will rotate along with the rotation of the blade body 1, so the wireless receiving component 3 and the outer shell component 5 are not in close contact with each other, and a certain gap is usually reserved between the front side of the wireless receiving component 3 and the rear side of the outer shell component 5.

[0116] It should be noted that, since the wireless receiving component 3 is arranged at the rear side of the mounting portion 4 and the transducer 2b is arranged at the front side of the mounting portion 4, the wires between the wireless receiving component 3 and the transducer 2b must pass through the mounting portion 4. In the case where the outer shell component 5 is sleeved on the mounting portion 4 through the bearing 8, the wires between the wireless receiving component 3 and the transducer 2b are likely to interfere with the outer shell component 5, causing the wires to be torn off. Figure 2As an example of this embodiment, a first electrical connection channel 6 is provided in the blade body 1 of the ultrasonic blade handle 100, and the first electrical connection channel 6 passes through the outside of the blade body 1 to be connected to the wireless receiving component 3; and a second electrical connection channel 7 is provided in the mounting portion 4, and one end of the second electrical connection channel 7 is connected to the first electrical connection channel 6, so that the first electrical connection channel 6 and the second electrical connection channel 7 form an electrical connection path.

[0117] It should be noted that since the locking member 41 is usually inserted inside the first protrusion 1a and the second protrusion 2a3, it is not convenient to arrange the wire channel, so the second electrical connection channel 7 is usually arranged along the axial extension of the blade body 1 and close to the outer edge of the mounting portion 4, and the arrangement position of the second electrical connection channel 7 will also be different according to the different ways in which the mounting portion 4 is formed. For example, in the case where the first protrusion 1a is wrapped around the outer peripheral side of the second protrusion 2a3, the second electrical connection channel 7 will be arranged inside the first protrusion 1a, and in the case where the second protrusion 2a3 is wrapped around the outer peripheral side of the first protrusion 1a, the second electrical connection channel 7 will be arranged inside the second protrusion 2a3.

[0118] It should be noted that the electrical connection path formed by the second electrical connection channel 7 and the first electrical connection channel 6 will communicate with the inner cavity 2a1 in the transducer housing 2a, and the communication method can be direct or indirect. For example, in the case where the first protrusion 1a is wrapped around the outer peripheral side of the second protrusion 2a3, the second electrical connection channel 7 will be arranged in the first protrusion 1a. At this time, the transducer housing 2a will be provided with a through hole that matches the second electrical connection channel 7, so that the second electrical connection channel 7 is connected to the inner cavity 2a1 in the transducer housing 2a; or, in the case where the second protrusion 2a3 is wrapped around the outer peripheral side of the first protrusion 1a, the second electrical connection channel 7 will be arranged in the second protrusion 2a3. At this time, the first electrical connection channel 6 can be a groove structure opened at the front end of the blade body 1, so that the first electrical connection channel 6 is directly connected to the second electrical connection channel 7, and the first electrical connection channel 6 can also be indirectly connected to the second electrical connection channel 7 through a hole structure or a channel structure opened in the blade body 1.

[0119] Or, for example, refer to Figure 2In the case where the first protrusion 1a is wrapped around the outer peripheral side of the second protrusion 2a3, the second protrusion 2a3 is embedded in the first protrusion 1a, so that the first protrusion 1a and the second protrusion 2a3 form a mounting portion 4. At this time, the second electrical connection channel 7 is arranged in the first protrusion 1a and passes through to the front end of the blade body 1, and a third electrical connection channel 11 extending along the axial direction of the transducer housing 2a is provided in the transducer housing 2a. The third electrical connection channel 11 is connected to the second electrical connection channel 7 and connected to the interior of the transducer housing 2a, that is, the inner cavity 2a1. At this time, the electrical connection path composed of the second electrical connection channel 7 and the first electrical connection channel 6 is connected to the inner cavity 2a1 through the third electrical connection channel 11. It should be noted that the second electrical connection channel 7 and the third electrical connection channel 11 may not extend in the axial direction. Axial extension is only one of the cases. In other ultrasonic knife handles 100, the second electrical connection channel 7 and the third electrical connection channel 11 may also be inclined to the axial direction of the knife body 1, so that communication with the inner cavity 2a1 can also be achieved.

[0120] Considering that the blade body 1 and the transducer housing 2a are detachably connected, the transducer housing 2a and the blade body 1 may be disassembled. In order to facilitate the transducer housing 2a and the blade body 1 to quickly achieve the conduction between the wireless receiving component 3 and the transducer 2b during the disassembly and assembly process, the conductive member arranged in the electrical connection path and the third electrical connection channel 11 is preferably plug-in. Figure 6-7 , used in ultrasonic tool holder 100 Figure 2 In the matching structure shown, the ultrasonic knife handle 100 includes a first conductive member 9 and a second conductive member 10, wherein the first conductive member 9 is arranged in the second electrical connection channel 7 and is electrically connected to the wireless receiving component 3; the second conductive member 10 is in the third electrical connection channel 11, and can form a plug-in match with the first conductive member 9, and the second conductive member 10 is electrically connected to the transducer 2a, so that when the transducer housing 2a and the knife body 1 are disassembled, the first conductive member 9 and the second conductive member 10 can be disassembled and move with the knife body 1 and the transducer housing 2a respectively, and the wires between the wireless receiving component 3 and the first conductive member 9, and the transducer 2b and the second conductive member 10 do not need to be torn off, and when the transducer housing 2a and the knife body 1 are assembled, the first conductive member 9 and the second conductive member 10 can be plugged in, so that the wireless receiving component 3 and the transducer 2b can be connected.

[0121] When the gap between the transducer 2b and the transducer housing 2a is small, sparks are easily generated inside the inner cavity 2a1, so an insulating structure can be arranged between the transducer 2b and the transducer housing 2a to prevent sparks. Figure 6 , 9-10, as an example of this embodiment, an insulating member 12 is provided in the transducer housing 2a, and the insulating member 12 is arranged on the outer peripheral side of the transducer 2b, and the transducer 2b is arranged at intervals. In addition, in order to prevent the wires between the transducer 2b and the wireless receiving component 3 from entering the gap between the transducer 2b and the transducer housing 2a and causing electric sparks, a wire groove 15 can be opened on the outer side of the insulating member 12, and the wire groove 15 is connected to the inner side of the insulating member 12, and the wire groove 15 is connected to the third electrical connection channel 11, and is connected to the second electrical connection channel 7. In this way, after the wires between the transducer 2b and the wireless receiving component 3 enter the inner cavity 2a1, they will enter the wire groove 15 and extend along the wire groove 15. At this time, the wires and the transducer 2b are separated by the insulating member 12, ensuring the safety of the wires arranged in the transducer housing 2a.

[0122] It should be noted that the wire between the transducer 2b and the wireless receiving component 3 is connected to the wiring port of the transducer 2b, so the wire can extend along the wire groove 15 to a position directly opposite to the wiring port, and then enter the inner side of the insulating member 12 to connect with the transducer 2b. Therefore, the position where the wire groove 15 is connected to the inner side of the insulating member 12 is usually the position where the wiring port of the transducer 2b is located, which is also conducive to shortening the length of the wire entering the inner side of the insulating member 12 to ensure its safety. The wire groove 15 can be connected to the inner side of the insulating member 12 through a through-hole structure, or the wire groove 15 itself can be connected to the inner side of the insulating member 12, which is not illustrated separately here.

[0123] Of course, the insulating member 12 may also be wrapped around the rear side of the transducer 2b. For example, the transducer 2b generally has a piezoelectric vibrator 2b1, and see Fig.10 , the insulating member 12 can extend to the rear side of the piezoelectric vibrator 2b1, thereby wrapping the piezoelectric vibrator 2b1 inside. In this case, the wire groove 15 can extend from the rear end of the piezoelectric vibrator 2b1 to the outer peripheral side of the piezoelectric vibrator 2b1, and the projections of the first conductive member 9 and the second conductive member 10 in the axial direction of the blade body 1, that is, in the front-to-back direction, are located in the wire groove 15, so that after the wire between the transducer 2b and the wireless receiving component 3 enters the inner cavity 2a1, it can enter the wire groove 15 along the axial direction of the blade body 1 to control the length of the wire inside the inner cavity 2a1.

[0124] In some ultrasonic knife handles 100, considering that the transducer 2b is easy to heat up during operation, which affects the normal operation of the ultrasonic knife handle 100, a cooling structure may be provided in the ultrasonic knife handle 100. For example, a first cooling air path 14 connected to an external cooling air source is also provided in the outer shell component 5, and the first cooling air path 14 is connected to the inner cavity 2a1. By connecting the external cooling air source to the first cooling air path 14, the cold air enters the inner cavity 2a1 at the rear end of the transducer 2b along the first cooling air path 14, so that the transducer 2b disposed in the transducer housing 2a can be cooled.

[0125] The first cooling air path 14 is connected to the inner cavity 2a1 at the rear end of the transducer 2b, so that the cold air in the first cooling air path 14 can enter the inner cavity 2a1 along the flow direction and pass through the transducer 2b along the axial direction of the blade body 1, thereby ensuring the flow rate of the cold air in the transducer housing 2a, and taking away the heat generated by the transducer 2b in time, avoiding entering the inner cavity 2a1 from the side wall of the transducer housing 2a, and then the cold air turns in the transducer housing 2a to cause flow rate loss.

[0126] Specifically, the piezoelectric vibrator 2b1 is usually stacked inside the transducer housing 2a along the axial direction of the blade body 1. Therefore, when the gas enters the transducer housing 2a through the rear end of the transducer housing 2a, the flow direction of the gas and the stacking direction of the piezoelectric vibrator 2b1 are parallel to the axial direction of the blade body 1. The gas can pass through the piezoelectric vibrator 2b1 along the flow direction, reducing the energy loss of the gas inside the transducer housing 2a, allowing the gas to take away more heat from the piezoelectric vibrator 2b1.

[0127] The first cooling air path 14 needs to be connected to an external cooling air source, and usually an air pipe or air duct is used for cooperation. In order to prevent the air pipe or air duct from becoming tangled when the ultrasonic knife handle 100 rotates at a high speed, the outer shell assembly 5 generally remains stationary relative to the knife body 1 and the transducer housing 2a, so the outer shell assembly 5 uses a bearing 8 as an assembly connection structure, and the bearing 8 is sleeved on the outer peripheral side of the knife body 1 and / or the transducer housing 2a.

[0128] It is understandable that the rear side of the transducer housing 2a and the front side of the bearing 8 are usually spaced apart and do not fit together, which can avoid friction between the transducer housing 2a and the bearing 8 during rotation. Of course, in the case where a bearing cover 21 is provided on the front side of the bearing 8, the rear side of the transducer housing 2a will be spaced apart from the front side of the bearing cover 21, and the bearing cover 21 can limit and seal the bearing 8. Therefore, the first cooling air path 14 connected to the inner cavity 2a1 of the transducer housing 2a may be connected to the bearing 8, which has a certain impact on the bearing 8, and is likely to cause an increase in the air pressure in the space where the bearing 8 is located, resulting in the loss of lubricating grease inside the bearing 8, and the performance of the bearing 8 will seriously affect the service life of the ultrasonic knife handle 100. In this regard, refer to Figure 6-14A sealing cover plate 44 is installed on the outside of the transducer housing 2a, and the sealing cover plate 44 is arranged at the front end of the bearing 8, and the sealing cover plate 44 is located at the rear end of the inner cavity 2a1, and the outer shell assembly 5 extends to the outer peripheral side of the transducer housing 2a, so that the transducer housing 2a, the sealing cover plate 44 and the outer shell assembly 5 form a first channel 14a, and the first cooling gas path 14 is connected to the inner cavity 2a1 through the first channel 14a.

[0129] Under the guidance of the first channel 14a, the cold air transported by the external cooling air source can leave the first cooling air path 14 and flow into the inner cavity 2a1 in the first channel 14a. The first cooling air path 14 is not directly connected to the space where the bearing 8 is located, thereby avoiding an increase in air pressure in the space where the bearing 8 is located.

[0130] It should be noted that, by providing a sealing cover plate 44 between the transducer housing 2a and the bearing 8, the cavity enclosed by the transducer housing 2a, the bearing 8 and the outer housing assembly 5 is separated into a gap space 20 and a first channel 14a, that is, the sealing cover plate 44, the outer housing assembly 5 and the bearing 8 enclose the gap space 20, and the sealing cover plate 44, the outer housing assembly 5 and the transducer housing 2a enclose the first channel 14a, wherein the cold air in the first cooling air path 14 mainly enters the first channel 14a, and then enters the interior of the transducer housing 2a through the first channel 14a to cool the transducer 2b, that is, the first cooling air path 14 is connected to the interior of the transducer housing 2a through the first channel 14a.

[0131] It is understandable that, in order to prevent the cold air in the first channel 14a from entering the gap space 20 and causing a certain impact on the bearing 8, a seal is provided between the first channel 14a and the gap space 20 to separate the first channel 14a from the gap space 20. For example, as an example of this embodiment, refer to Figure 6-7 , 17, a sealing member is provided between the sealing cover plate 44 and the outer shell assembly 5 to seal and isolate the first channel 14a from the gap space 20.

[0132] Of course, considering that when the ultrasonic knife handle 100 rotates at high speed, the transducer housing 2a and the bearing sleeve 5a will rotate relative to each other, if the sealing effect of the seal is too good, it is easy to cause friction between the transducer housing 2a and the seal, generating a large amount of heat. Therefore, the seal can be made of polytetrafluoroethylene to reduce rotational friction, but this will cause a small gap between the transducer housing 2a and the seal, allowing some cold air to enter the gap space 20, resulting in an increase in the air pressure in the space where the bearing 8 is located, resulting in the loss of lubricating grease inside the bearing 8. In this regard, refer to Figure 7 , 11As an example of this embodiment, the outer shell component 5 is provided with a pressure relief hole 22 connected to the gap space 20. The pressure relief hole 22 passes through the outer shell component 5 and is connected to the outside of the outer shell component 5 to discharge the gas in the gap space 20.

[0133] It is understandable that the gas flow rate is one of the main factors affecting gas cooling. Improving the flow rate of cold air inside the transducer housing 2a is beneficial to the heat dissipation of the transducer 2b. Figure 6 , 13 As one of the ways to increase the flow speed of cold air inside the transducer housing 2a, an airflow turbine 19 is connected to the outside of the transducer housing 2a, so that the airflow turbine 19 remains fixed relative to the transducer housing 2a, and the airflow turbine 19 is arranged in the first channel 14a and rotates synchronously with the transducer housing 2a, thereby driving the airflow in the first channel 14a into the interior of the transducer housing 2a.

[0134] The airflow turbine 19 includes a plurality of turbine blades 19a, which are arranged at intervals along the circumference of the transducer housing 2a, and each turbine blade 19a is fitted with the transducer housing 2a, thereby forming a turbine structure. By providing the airflow turbine 19, when the ultrasonic knife handle 100 rotates at high speed, the airflow turbine 19 can rotate at high speed following the transducer housing 2a, thereby sucking the airflow in the first channel 14a into the interior of the transducer housing 2a, accelerating the cold air to enter the interior of the transducer housing 2a, and making the flow rate of the cold air passing through the interior of the transducer housing 2a faster, thereby improving the heat dissipation effect of the cold air on the transducer 2b.

[0135] The piezoelectric vibrators 2b1 of the transducer 2b are usually stacked and arranged along the axial direction of the blade body 1, so the cold air in the first channel 14a enters the inner cavity 2a1 and can pass through the piezoelectric vibrators 2b1 along the flow direction. In this case, the cold air flow rate of the inner cavity 2a1 is optimal, and there is no need to turn in the inner cavity 2a1 to cause flow rate loss. To achieve this, the air inlet 16a of the transducer housing 2a needs to be configured at the top of the transducer housing 2a. Therefore, as an example of this embodiment, the end of the transducer housing 2a facing the sealing cover plate 44 is provided with a plurality of air inlet holes 16a that pass through the inner cavity 2a1, and there is at least one air inlet hole 16a between two adjacent turbine blades 19a, so that the cold air in the first channel 14a can be driven by the airflow turbine 19 to enter the inner cavity 2a1 more evenly to cool the transducer 2b. Moreover, the airflow turbine 19 can distribute the cold air in the first channel 14a to the air inlet 16a more evenly, thereby preventing the cold air from forming turbulence in the inner cavity 2a1 and causing energy loss.

[0136] refer to Fig.13The airflow turbine 19 can adopt the structural layout of the turbine, and is fixedly connected to the rear side of the transducer housing 2a by bolts and other structures, and fits with the transducer housing 2a. It should be noted that the airflow turbine 19 and the transducer housing 2a adopt a split design, which is conducive to the processing of the airflow turbine 19. Of course, as an example of this embodiment, the airflow turbine 19 and the sealing cover plate 44 are integrally formed, so that the two can be synchronously fixedly installed on the transducer housing 2a, thereby omitting one assembly step.

[0137] Of course, when the ultrasonic knife handle 100 rotates at a high speed, the bearing 8 is also prone to generate a large amount of heat, causing the bearing 8 to overheat and affecting its service life. Therefore, the ultrasonic knife handle 100 of this embodiment uses the installation space formed by the installation portion 4 to allow the outer shell assembly 5 to be sleeved on the installation portion 4 through the bearing 8. In this way, the outer diameter of the bearing 8 can be smaller than the outer diameter of the shell portion 2a2, and can also be smaller than the outer diameter of the main body portion 1b, so that the specifications and dimensions of the bearing 8 can be controlled. Moreover, the outer shell assembly 5 can be arranged using the installation space formed by the installation portion 4, which can reduce the space occupied by the outer shell assembly 5 outside the knife body 1 and the transducer housing 2a, and make the first cooling air path 14 closer to the transducer housing 2a, so that the distance from the cold air input through the external cooling air source to the inside of the transducer housing 2a is shorter, reducing the loss of the cold air during the flow process, and increasing the flow rate of the cold air entering the inside of the transducer housing 2a, so that the heat generated by the transducer 2b can be more easily taken away.

[0138] It should be noted that, in the relevant scheme involving the cooling structure, the blade body 1 and the transducer housing 2a of the ultrasonic blade handle 100 do not necessarily adopt a detachable design, and the blade body 1 and the transducer housing 2a may also be an integral structure. In the ultrasonic blade handle 100, the blade body 1 and the transducer housing 2a are generally collectively referred to as the blade handle body. When the blade handle body is an integral structure, the blade body 1 and the transducer housing 2a are connected to each other, but the two are not detachable. In these ultrasonic blade handles 100, the outer shell assembly 5 can be sleeved on the outer peripheral side of the blade body 1 using the bearing 8, or sleeved on the outer peripheral side of the transducer housing 2a, or sleeved at the intersection of the blade body 1 and the transducer housing 2a, that is, sleeved on the outer peripheral side of the blade body 1 and the transducer housing 2a, and in these ultrasonic blade handles 100, the first cooling gas path 14 provided in the outer shell assembly 5 can also be connected to the inside of the transducer housing 2a. The communication arrangement of the first cooling gas path 14 and the transducer housing 2 a is the same as that of the ultrasonic knife handle 100 of this embodiment, and is not illustrated separately here.

[0139] It should be noted that based on the two implementation modes of the mounting portion formed by the cooperation between the first protrusion 1a and the second protrusion 2a3, the cooperation between the bearing 8 and the mounting portion 4 also has at least two modes. Figure 6-7, the inner ring of the bearing 8 is sleeved on the first raised portion 1a, so that the bearing 8 is connected and fixed to the blade body 1. In this way, the bearing 8 and the transducer housing 2a will use the blade body 1 as the assembly reference, effectively reducing the error accumulation caused by assembly, and improving the assembly accuracy of the bearing 8, the outer housing assembly 5 and the transducer housing 2a, so that the ultrasonic knife handle 100 can operate better under high-speed rotation; secondly, the inner ring of the bearing 8 is sleeved on the second raised portion 2a3, so that the bearing 8 is connected and fixed to the transducer housing 2a, so that the assembly of the bearing 8 and the mounting portion 4 can also be achieved.

[0140] When the ultrasonic knife handle 100 rotates at high speed, the inner ring of the bearing 8 will rotate at high speed along with the knife body 1, causing a large amount of friction between the inner and outer rings of the bearing 8, resulting in serious heating of the bearing 8. Considering that the first cooling air path 14 is disposed in the outer shell assembly 5, the first cooling air path 14 can be used to cool the bearing 8. Figure 6-14 As an example of this embodiment, the outer shell assembly 5 includes a bearing sleeve 5a and an airflow seat 5b, wherein the bearing sleeve 5a is connected to the outer ring of the bearing 8, and the bearing sleeve 5a extends to the outer peripheral side of the transducer housing 2a, and forms a first channel 14a between the transducer housing 2a and the sealing cover plate 44; the airflow seat 5b is connected to the outer peripheral side of the bearing sleeve 5a, and forms a second channel 14b between the bearing sleeve 5a, the first channel 14a is connected to the second channel 14b, and the airflow seat 5b is provided with a first air inlet channel 14c connected to an external cooling air source, the first air inlet channel 14c and the second channel 14b are connected in sequence to form a first cooling air path 14.

[0141] The bearing jacket 5a is usually made of metal material, so the bearing jacket 5a connected to the outer ring of the bearing 8 can absorb part of the heat generated by the bearing 8 and play a certain cooling role on the bearing 8. In addition, the cold air supplied by the external cooling air source enters the second channel 14b through the first air inlet channel 14c. Since the bearing jacket 5a and the air flow seat 5b form the second channel 14b, the cold air and the bearing jacket 5a undergo the first heat exchange, taking away the heat of the bearing jacket 5a, thereby reducing the temperature of the bearing jacket 5a and increasing the temperature difference between the bearing 8 and the bearing jacket 5a, so that the heat generated by the bearing 8 is further absorbed by the bearing jacket 5a, thereby realizing the cooling of the bearing 8. Moreover, with the cooperation of the airflow turbine 19, when the ultrasonic knife handle 100 rotates at a high speed, the airflow turbine 19 can rotate at a high speed along with the transducer housing 2a. Under the action of the airflow turbine 19, the cold air will accelerate through the air inlet 16a, making the flow rate of the cold air faster, thereby further improving the heat dissipation effect of the cold air on the transducer 2b, and compensating for the cold air loss due to a heat exchange before cooling the transducer 2b.

[0142] It is understandable that the temperature of the bearing jacket 5a is an important factor in determining the degree of heat exchange between the bearing jacket 5a and the bearing 8. Therefore, when the cold air passes through the bearing jacket 5a, it is necessary to ensure that the cold air can fully remove the heat of the bearing jacket 5a. Fig.12 As an example of this embodiment, a flow guide 17 is provided in the second channel 14b, and a flow guide air groove 18 connected to the second channel 14b is opened on the flow guide 17, and the flow guide air groove 18 is spirally arranged on the outer side of the flow guide 17 in the front-to-back direction, that is, the axial direction of the blade body 1 is the axial direction of the spiral arrangement.

[0143] It can be understood that in the above-mentioned example structure, the bearing sleeve 5a is connected to the outer ring of the bearing 8 to form a layout arranged around the outer ring of the bearing 8. Therefore, the first channel 14a formed between the bearing sleeve 5a and the sealing cover plate 44 and the transducer housing 2a, that is, the first channel 14a is surrounded by the outer housing assembly 5, the bearing 8, and the sealing cover plate 44, and is an annular space arranged around the transducer housing 2a. Moreover, the airflow seat 5b is connected to the outer peripheral side of the bearing sleeve 5a, and also forms a layout arranged around the bearing sleeve 5a. Therefore, the second channel 14b formed between the airflow seat 5b and the bearing sleeve 5a is also an annular space. Therefore, by setting the guide air groove 18 in the guide member 17, the cold air leaving the second channel 14b will form a vortex, which will not only make the flow velocity of the cold air in the first channel 14a faster, but also, the cold air flowing in a vortex manner matches the annular layout of the first channel 14a. The first channel 14a will not hinder the flow of cold air inside it, so that the flow velocity of the cold air entering the inner cavity 2a1 will be faster. In this way, the flow velocity of the cold air through the transducer 2b will be further increased, so that the cold air can take away more heat from the transducer 2b, thereby compensating for the cold loss in the second heat exchange between the cold air and the transducer 2b.

[0144] refer to Figure 6 , 9 -10. As an example of this embodiment, in a case where an insulating member 12 is provided in the transducer housing 2a, the insulating member 12 is arranged on the outer peripheral side of the transducer 2b and is spaced apart from the transducer 2b, so that a cooling channel 13 is formed between the insulating member 12 and the transducer 2b, and the cooling channel 13 is connected to the inner cavity 2a1 and is connected to the first cooling air path 14 through the air inlet hole 16a.

[0145] The insulating member 12 is made of insulating material, such as plastic steel. The insulating member 12 is used to form an insulating isolation between the transducer 2b and the transducer housing 2a, so that the insulating cloth is not wound around the outside of the transducer 2b, which affects the heat dissipation of the transducer 2b. In addition, by using the cooling channel 13 between the insulating member 12 and the transducer 2b, cold air can flow from the first channel 14a to the cooling channel 13 to cool the transducer 2b. Moreover, the provision of the insulating member 12 is conducive to reducing the flow cross-sectional area around the transducer 2b, so that the cooling air can quickly pass through the cooling channel 13, further improving the cooling effect of the transducer 2b.

[0146] The cold air that has undergone the first heat exchange with the bearing housing 5a further flows to the first channel 14a, and reaches the transducer 2b through the cooling channel 13, and undergoes the second heat exchange with the transducer 2b to cool the transducer 2b. Of course, in order to allow the cold air to enter and exit the transducer housing 2a, the transducer housing 2a will be configured with a corresponding hole structure or channel structure. Fig.14 As an example of this embodiment, exhaust holes 16b are arranged through the circumference of the transducer housing 2a. The air inlet holes 16a and the exhaust holes 16b are connected to the interior of the transducer housing 2a to form a third cooling air path 16. The third cooling air path 16 is connected to the first cooling air path 14 and the first channel 14a.

[0147] It should be noted that the first cooling gas path 14 is interconnected with the first channel 14a and the third cooling gas path 16 to form an internal cooling gas path of the ultrasonic knife handle 100. The cold air entering the internal cooling gas path through the first air inlet channel 14c will follow the guidance of the first cooling gas path 14, the first channel 14a, and the third cooling gas path 16, pass through the bearing sleeve 5a, the transducer housing 2a, and the transducer 2b in a forward direction, undergo a first heat exchange with the bearing sleeve 5a, and undergo a second heat exchange with the transducer 2b, and then be discharged from the transducer housing 2a.

[0148] In some ultrasonic knife handles 100, the cross-sectional profile of the outer peripheral side of the transducer housing 2a is circular. In this case, the exhaust holes 16b can be arranged extending along the tangent direction of the circle. Such an arrangement is conducive to the discharge of cold air in the inner cavity 2a1.

[0149] In the structure of the ultrasonic knife handle 100, the front end of the transducer housing 2a is usually connected to a horn 42, and the tool 43 is connected to the front end of the horn 42, and the horn 42 is used to increase the amplitude of the tool 43. In the process of the ultrasonic knife handle 100 being assembled with a disc knife to cut materials, a large amount of heat will be generated when the tool 43 cuts the material, causing the temperature of the material to rise, thereby causing the glue inside the material to melt and adhere to the tool 43, or the chips generated during processing to adhere to the tool 43, affecting the subsequent processing effect. Therefore, the ultrasonic knife handle 100 is provided with a cooling structure for the tool 43 to cool the tool 43 during the processing. Moreover, considering that the cold air entering through the first air inlet channel 14c is heat-exchanged with the bearing sleeve 5a and the transducer 2b, and then heat-exchanged with the tool 43, the efficiency is low, so the ultrasonic knife handle 100 is also configured with a gas path structure of the second cooling gas path 27 independent of the first cooling gas path 14.

[0150] refer to Fig.16 As an example of this embodiment, the outer shell component 5 is provided with a first air duct 29 and a second air duct 30, wherein the first air duct 29 is arranged along the front-back direction, that is, the axial direction of the cutter body 1; the second air duct 30 is arranged in the circumferential direction of the amplitude transformer 42 and is connected with the first air duct 29; the outer shell component 5 is also provided with a second air inlet channel 27a connected with an external cooling air source, and the second air inlet channel 27a, the first air duct 29 and the second air duct 30 are connected in sequence to form a second cooling air path 27. A nozzle 28 that can cool the cutter 43 can also be arranged along the arrangement path of the second air duct 30, and the nozzle 28 is connected with the second air duct 30 to output the cold air of the second cooling air path 27.

[0151] The first air duct 29 and the second air duct 30 are exposed to the outside and are easily damaged by impact. In view of this situation, the outer shell assembly 5 can extend to the location of the first air duct 29 and the second air duct 30 to provide protection for the first air duct 29 and the second air duct 30. Figure 16-19 As an example of this embodiment, the outer shell assembly 5 includes a first set of shells 23, which are arranged at intervals on the outer peripheral side of the transducer shell 2a, so as to form a fourth channel 24 between the first set of shells 23 and the transducer shell 2a; the fourth channel 24 is connected to the exhaust hole 16b, and an exhaust port 24a facing the front end is opened, so that the cold air flowing through the first cooling air path 14 will enter the fourth channel 24 after being discharged from the transducer shell 2a from the exhaust hole 16b, and will flow to the exhaust port 24a under the restriction of the fourth channel 24, and finally be discharged through the exhaust port 24a. Since the exhaust port 24a is arranged toward the front end, the cold air discharged through the exhaust port 24a can be blown toward the tool 43 to cool the tool 43 once.

[0152] The outer shell assembly 5 also includes a second shell 25, which is arranged on the outer peripheral side of the first shell 23, thereby forming a third channel 26 between the second shell 25 and the first shell 23, and the third channel 26 is provided with a jet port 26a connected to the outside, and the second air duct 30 is connected to the nozzle 28 through the jet port 26a.

[0153] The second air inlet channel 27a can be independent of the first air inlet channel 14c, that is, it can be connected to different external cooling air sources according to actual needs, so that the first cooling air path 14 and the second cooling air path 27 are independent of each other and do not interfere with each other. Of course, the second air inlet channel 27a and the first air inlet channel 14c can also be connected to the same cooling air source, and the second air inlet channel 27a and the first air inlet channel 14c are independently supplied with air through a valve. In the aforementioned situation, the second air inlet channel 27a will always introduce cold air independently of the first air inlet channel 14c, so that the cold air flows along the third channel 26 to the air jet 26a. The air jet 26a can be connected to a nozzle 28 arranged toward the tool 43, or the air jet 26a itself is arranged toward the tool 43, so that the cold air introduced through the second air inlet channel 27a is directly blown toward the tool 43 to perform heat exchange with the tool 43.

[0154] The cutter 43 of the ultrasonic knife handle 100 can exchange heat with two cooling air paths, one of which is the cooling air flowing to the exhaust port 24a through the first cooling air path 14 and the third cooling air path 16, and the other is the cooling air flowing to the air jet 26a through the second cooling air path 27. Under the cooling effect of the two cooling air paths, the cutter 43 of the ultrasonic knife handle 100 and the material cut by the cutter 43 can be effectively cooled, thereby preventing the material from absorbing too much heat during the cutting process by the cutter 43, which may cause the glue inside the material to melt or the chips to adhere to the cutter 43.

[0155] Under the guidance of the first air duct 29 and the second air duct 30, the cold air entering the second cooling air path 27 through the second air inlet channel 27a will flow along the axial direction of the cutter body 1 and then flow along the circumferential direction of the horn 42. In this way, the cold air ejected through the air jet 26a can be blown toward the tool 43 from the circumferential direction of the horn 42 to fully cool all positions of the tool 43. The second air duct 30 is preferably arranged around the circumference of the horn 42, so that the air jet 26a distributed along the arrangement path of the second air duct 30 can be arranged around the tool 43, so that the cold air is in full contact with the tool 43.

[0156] In addition, the third channel 26 may be filled with a heat-insulating material to form a heat-insulating layer (not shown in the figure) covering the first air duct 29 and the second air duct 30, so as to ensure that the cold air in the second cooling air path 27 is maintained at a low temperature. Of course, the heat-insulating material can also assist in the connection and cooperation between the first shell 23 and the second shell 25. For example, the rear end of the second shell 25 is fixedly connected to the airflow seat 5b, and the first shell 23 is fixed to the inside of the second shell 25 through the heat-insulating material. In addition, in order to fix the first air duct 29, a bracket is provided inside the second shell 25, so that the first air duct 29 is fixed to the second shell 25.

[0157] It should be noted that the ultrasonic knife handle 100 is provided with the first cooling gas path 14 and the second cooling gas path 27, which is also applicable to the ultrasonic knife handle 100 in which the knife body 1 and the transducer housing 2a adopt an integrated structure. In the ultrasonic knife handle in which the knife body 1 and the transducer housing 2a adopt an integrated structure, the arrangement concept of the first cooling gas path 14, the second cooling gas path 27, and the third cooling gas path 16 is the same as the arrangement concept of the ultrasonic knife handle 100, and will not be described separately here.

[0158] When the ultrasonic knife handle 100 is in operation, the spindle of the processing machine tool is connected to the rear side of the knife body 1, driving the knife body 1 to rotate, and during the rotation of the knife body 1, the outer shell assembly 5 remains stationary relative to the knife body 1. Since the knife body 1 can rotate relative to the outer shell assembly 5, after the knife body 1 is separated from the spindle, relative rotation will occur between the knife body 1 and the outer shell assembly 5, causing the knife body 1 to deviate from the position where it is docked with the spindle, resulting in the spindle being unable to align with the knife body 1 when the ultrasonic knife handle 100 is connected again, thereby causing the processing machine tool to be unable to change the knife. In view of this situation, a limiting structure can be set on the ultrasonic knife handle 100 to limit the relative rotation between the knife body 1 and the outer shell assembly 5 when the knife body 1 is separated from the spindle.

[0159] refer to Figure 20-24 As an example of this embodiment, a receiving slot 31 is fixedly connected to the outer peripheral side of the blade body 1, the wireless receiving component 3 is arranged in the receiving slot 31, and a positioning slot 32 is opened on the outer peripheral side of the receiving slot 31.

[0160] The outer shell component 5 is provided with a first positioning component 33 and a second positioning component 34 which can move relative to the outer shell component 5, and the second positioning component 34 can drive the first positioning component 33 to move when it moves relative to the outer shell component 5, so that the first positioning component 33 can be disengaged from the positioning groove 32, so that the receiving groove body 31 and the outer shell component 5 can rotate relative to each other, that is, the knife body 1 and the outer shell component 5 can rotate relative to each other; and the first positioning component 33 can be driven to extend into the positioning groove 32, so that the receiving groove body 31 and the outer shell component 5 are relatively stationary, that is, the knife body 1 and the outer shell component 5 are relatively stationary.

[0161] By setting the first positioning component 33 and the second positioning component 34, as an example of this embodiment, the second positioning component 34 can be extended to the outside of the outer shell component 5. When the ultrasonic knife handle 100 is connected to the main shaft, the second positioning component 34 extending to the outside of the outer shell component 5 can be squeezed, thereby driving the first positioning component 33 to move, so that the first positioning component 33 is disengaged from the positioning groove 32, so that the receiving groove body 31 and the outer shell component 5 can rotate relative to each other, and since the receiving groove body 31 is connected and fixed to the knife body 1, at this time, the knife body 1 and the outer shell component 5 can rotate relative to each other; and when the ultrasonic knife handle 100 is separated from the main shaft, the second positioning component 34 extending to the outside of the outer shell component 5 can be restored, and with the help of other means, the first positioning component 33 can be driven to move in the opposite direction, so that the first positioning component 33 is extended into the positioning groove 32, thereby making the receiving groove body 31 and the outer shell component 5 relatively stationary, and since the receiving groove body 31 is connected and fixed to the knife body 1, at this time, the knife body 1 is also relatively stationary with the outer shell component 5.

[0162] Of course, the second positioning component 34 may not extend out of the outer shell component 5, and a unit that can abut against the second positioning component 34 can be set at the main shaft end. When the ultrasonic knife handle 100 is installed on the main shaft, the second positioning component 34 can also be squeezed.

[0163] It should be noted that in some ultrasonic knife handles 100, the ultrasonic knife handles 100 may be driven by a brush structure or other electrical connection structures, so in these ultrasonic knife handles 100, the positioning groove 32 may also be directly provided on the outer peripheral side of the knife body 1, so that the first positioning component 33 and the second positioning component 34 are directly matched with the knife body 1. The way in which the first positioning component 33 and the second positioning component 34 are matched with the knife body 1 is the same as the way in which the first positioning component 33 and the second positioning component 34 are matched with the receiving slot body 31, and will not be repeated here.

[0164] There are various ways for the first positioning component 33 to extend into and out of the positioning groove 32. For example, the first positioning component 33 can move linearly along the radial direction of the blade body 1 to enter and exit the positioning groove 32, or the first positioning component 33 can also swing relative to the blade body 1 to enter and exit the positioning groove 32. Figure 20-24 As an example of this embodiment, the first positioning assembly 33 includes a swing block 33a, which is rotatably connected to the outer shell assembly 5 to reciprocate towards or away from the positioning groove 32, so that the swing block 33a extends into the positioning groove 32 or the swing block 33a is disengaged from the positioning groove 32.

[0165] It should be noted that the swing block 33a at least partially extends out of the outer shell component 5. Based on the rotatable connection between the swing block 33a and the outer shell component 5, the swing block 33a will rotate relative to the outer shell component 5 when entering and exiting the positioning groove 32. For example, if the swing block 33a rotates clockwise relative to the outer shell component 5, it will escape from the positioning groove 32. Then, if the swing block 33a rotates counterclockwise relative to the outer shell component 5, the swing block 33a will extend into the positioning groove. Compared with the arrangement direction of linear movement, the swing block 33a adopts a rotational arrangement structure layout, which can reduce the distance between the second positioning component 34 and the handle body accordingly, so that the limiting structure composed of the first positioning component 33 and the second positioning component 34 is more suitable for a small-sized handle structure, or a handle with a relatively large handle body, such as a handle structure with a wireless receiving component installed on the handle body, and can save the space occupied by the limiting structure and improve the space utilization rate of the outer shell component 5.

[0166] In order to drive the swing block 33a to rotate relative to the outer shell assembly 5, the first positioning assembly 33 can be configured with a moving structure for moving the swing block 33a to achieve the rotation of the swing block 33a. Figure 20-24 As an example of this embodiment, the first positioning assembly 33 further includes a reciprocating slider 33b, which is configured to be able to reciprocate toward the blade body 1 at the outer peripheral side of the blade body 1, and the end of the swing block 33a away from the receiving slot 31 is rotatably connected to the slider 33b, that is, the end away from the positioning slot 32 is rotatably connected to the slider 33b, and the end of the slider 33b away from the blade body 1 abuts against the second positioning assembly 34, so that the slider 33b is driven close to the blade body 1, which can drive the swing block 33a to rotate, so that the other end of the swing block 33a is disengaged from the positioning slot 32. Of course, the rotation center between the slider 33b and the swing block 33a deviates from the rotation center between the swing block 33a and the outer shell assembly 5.

[0167] Through the cooperation between the slider 33b and the swing block 33a, the swing block 33a can rotate relative to the outer shell component 5, thereby enabling the first positioning component 33 to achieve the function of limiting or releasing the limit. In order to drive the slider 33b to move and ensure that the first positioning component 33 can achieve its function, refer to Figure 20-24 As an example of this embodiment, a first elastic member 37 is provided on the outer shell assembly 5, and the first elastic member 37 is arranged on the side of the slider 33b close to the knife body, and one end of the first elastic member 37 abuts against the end of the slider 33b close to the knife body 1, and the other end of the first elastic member 37 is fixedly arranged, so that the first elastic member 37 can apply a force to the slider 33b in a direction away from the knife body 1, so that the slider 33b has a tendency to move away from the knife body 1.

[0168] There are many ways to achieve the movement of the second positioning component 34 relative to the outer shell component 5, and using the positioning column 34a is one of the feasible solutions. Figure 20-24 The second positioning assembly 34 includes a positioning column 34a, which can reciprocate along the axial direction of the blade body 1, and the end of the slider 33b away from the blade body 1 can abut against the positioning column 34a to drive the swing block 33a to escape from the positioning groove 32.

[0169] It is understandable that the slider 33b is subjected to a force moving away from the blade body 1 under the action of the first elastic member 37, so that the end of the slider 33b away from the blade body 1 abuts against the positioning column 34a. Of course, in order to limit the movable stroke of the slider 33b, refer to Figure 20-24 As an example of this embodiment, the second positioning assembly also includes a limiting block 34b, the front end of the positioning column 34a is connected to the limiting block 34b, the limiting block 34b is provided with a clearance avoidance position 34b1 recessed toward its inner side, and the positioning column 34a can reciprocate along the axial direction of the blade body 1, so that the clearance avoidance position 34b1 can be moved to the position of the slider 33b, so that the slider 33b extends into the clearance avoidance position 34b1, thereby allowing the slider 33b to drive the swing block 33a to extend into the positioning groove 32.

[0170] The limiting block 34b and the positioning column 34a can be an integral structure or a separate structure. Under the action of the limiting block 34b, the slider 33b driven by the first elastic member 37 will enter the avoidance position 34b1, and will be constrained by the limiting block 34b and cannot move further. In this way, the slider 33b can be prevented from completely coming out, causing the limit structure to fail. As the second positioning component 34 moves forward along the axial direction of the blade body 1, the second positioning component 34 will push the slider 33b back toward the blade body 1, ensuring that the positioning column 34a can move to the horizontal position where the slider 33b is located, so that the swing block 33a is driven to come out of the positioning groove 32.

[0171] In order to facilitate the cooperation between the limiting block 34b and the slider 33b, the outer peripheral side of the limiting block 34b can be provided with an inclined surface 34b10 inclined to the front-back direction. The inclined surface 34b10 is arranged at the rear side of the avoidance position 34b1, gradually converges toward the front side of the limiting block 34b, and is connected to the avoidance position 34b1. In this way, when the limiting block 34b moves toward the front end of the blade body 1, the inclined surface 34b10 can gradually push the slider 33b toward the blade body 1 to prevent the slider 33b from getting stuck inside the avoidance position 34b1. Moreover, the inclined surface 34b10 continues to the outer peripheral surface of the positioning column 34a. When the second positioning assembly continues to move forward, the end of the slider 33b that contacts the second positioning assembly 34 can gradually move to the positioning column 34a along the inclined surface 34b10 to prevent the slider 33b from getting stuck during the movement process.

[0172] In addition, reference Figure 20-24As an example of this embodiment, the end of the slider 33b is rotatably connected to the positioning column 34a, and the outer edge of the pulley 39 extends out of the slider 33b, so that the pulley 39 can roll with the second positioning component 34, making the slider 33b move more smoothly. The second positioning component 34 can drive the slider 33b to approach the blade 1 through the pulley 39.

[0173] In order to drive the second positioning component 34 to act, and ensure that the second positioning component 34 can achieve its function, refer to Figure 20-24 As an example of this embodiment, a second elastic member 40 is further provided on the outer shell component 5, one end of the second elastic member 40 abuts against the front end of the second positioning component 34, and the other end of the second elastic member 40 is fixedly arranged so that the second positioning component 34 has a tendency to move toward the rear side of the knife body 1 after being squeezed, that is, a force is applied to the second positioning component 34 to move toward the rear side. As for the power for squeezing the second positioning component 34, it can be applied to the second positioning component by the spindle when the tool handle is installed with the spindle, which has been explained above.

[0174] Of course, in order to facilitate driving the swing block 33a to rotate relative to the outer shell component 5 and provide necessary protection for the first positioning component 33 and the second positioning component 34, a slot structure can be configured in the outer shell component. Figure 20-24 As an example of this embodiment, a first mounting groove 35 is provided in the outer shell assembly 5 , and the first mounting groove 35 is arranged on the outer peripheral side of the blade body 1 and extends toward the blade body 1 , and the slider 33 b can reciprocate in the first mounting groove 35 .

[0175] It can be understood that the first mounting groove 35 is arranged on the outer peripheral side of the blade body 1 and extends toward the blade body 1, so that the first mounting groove 35 is inclined to / perpendicular to the axial direction of the blade body 1, so the slider 33b reciprocating in the first mounting groove 35 will reciprocate close to and away from the blade body 1 as it moves. Since the swing block 33a rotates relative to the outer shell assembly 5, a rotation center must be provided between the swing block 33a and the outer shell assembly 5, and the rotation center is usually an axis structure.

[0176] The first elastic member 37 is disposed in the first installation groove 35 and arranged on the side of the slider 33b close to the blade body, and can apply a force to the slider 33b in the direction away from the blade body 1, so that the slider 33b has a tendency to move away from the blade body 1 along the first installation groove 35. As the slider 33b reciprocates toward and away from the blade body 1, the end of the swing block 33a away from the slider 33b reciprocates into or out of the positioning groove 32 through the rotation center between the swing block 33a and the outer shell assembly 5. Since the rotation center between the slider 33b and the swing block 33a deviates from the rotation center between the swing block 33a and the outer shell assembly 5, and the first installation groove 35 is located inside the outer shell assembly 5 and the swing block 33a extends to the outside of the outer shell assembly 5, the slider 33b is located at the front side of the swing block 33a, and the rear end of the swing block 33a extends out of the outer shell assembly 5. At this time, as the slider 33b moves, the slider 33b will move the swing block 33a, and the swing block 33a will then rotate relative to the outer shell assembly 5.

[0177] Based on the rotation of the swing block 33a, a corresponding space needs to be configured in the outer shell component 5 for the swing block 33a to rotate, so a second mounting groove 36 is also provided in the outer shell component 5, the second mounting groove 36 is arranged in the front-to-back direction, and the front end of the second mounting groove 36 is connected to the first mounting groove 35, and the rear end of the second mounting groove 36 is connected to the positioning groove 32; the swing block 33a is rotatably connected in the second mounting groove 36, and the rear end of the swing block 33a extends out of the second mounting groove 36. In addition, a third mounting groove 38 is also provided in the outer shell component 5, the third mounting groove 38 is arranged in the front-to-back direction, and the end of the first mounting groove 35 away from the blade 1 is connected to the third mounting groove 38; and the positioning column 34a can reciprocate in the third mounting groove 38, and the positioning column 34a can move to the connecting position of the first mounting groove 35 and the third mounting groove 38, so as to limit the slider 33b from escaping from the first mounting groove 35, so that the slider 33b drives the swing block 33a to escaping from the positioning groove 32.

[0178] The first elastic member 37 can be a spring. The positioning column 34a and the first elastic member 37 cooperate with each other to provide a way to realize the reciprocating movement of the slider 33b in the first installation groove 35: the slider 33b squeezes the first elastic member 37 in the first installation groove 35, so that the first elastic member 37 applies a force to the slider 33b in the direction away from the blade body 1, driving the slider 33b away from the blade body 1. After the connection between the positioning column 34a and the limiting block 34b moves to the connecting position between the first installation groove 35 and the third installation groove 38, the second positioning assembly 34 continues to be driven to move toward the rear end of the blade body 1. The slider 33b will move the swing block 33a, so that the swing block 33a rotates toward the positioning groove 32 and extends. The second positioning assembly 34 is driven to move toward the front end of the blade body 1, and when the positioning column 34a moves to the connecting position of the first mounting groove 35 and the third mounting groove 38, the slider 33b will be pushed into the first mounting groove 35, so that the first elastic member 37 is squeezed, and the positioning column 34a blocks the port of the first mounting groove 35, so that the slider 33b cannot escape from the first mounting groove 35. During this process, the slider 33b will move the swing block 33a, so that the swing block 33a is away from the positioning groove 32 and escapes from the positioning groove 32, so that the blade body 1 can rotate relative to the outer shell assembly 5.

[0179] In order to drive the second positioning assembly 34 to move and ensure that the second positioning assembly 34 can achieve its function, the second elastic member 40 is disposed in the third mounting groove 38, and the second elastic member 40 abuts against the front end of the second positioning assembly 34, so that the second positioning assembly 34 has a tendency to move along the third mounting groove 38 toward the rear side of the third mounting groove 38, that is, a force to move toward the rear side is applied to the second positioning assembly 34. Of course, in order to prevent the second positioning assembly 34 from slipping out of the third mounting groove 38, the third mounting groove 38 can be configured as a countersunk structure or a limiting structure can be set in the channel, which will not be described here.

[0180] It should be noted that the first positioning component 33 and the second positioning component 34 can also be arranged on the rear side of the outer shell component 5, and do not need to be arranged with the help of a groove structure. For example, the first positioning component 33 and the second positioning component 34 can be outside the outer shell component 5, such as the slider 33b slides on the rear end surface of the outer shell component 5, and the swing block 33a is rotatably connected to the outer shell component 5 with the help of a fixing rod.

[0181] It should be noted that the limiting structure composed of the first positioning component 33 and the second positioning component 34 can be applied to other knife handle structures, such as non-ultrasonic knife handles, ultrasonic knife handles in which the knife body and the transducer housing are integrally connected, or ultrasonic knife handles without a wireless transmission structure. In other knife handle structures, the positioning groove 32 is arranged on the outer peripheral side of the knife handle body, and the outer shell component 5 is rotatably sleeved on the outer peripheral side of the knife handle body. As for the structural composition of the first positioning component 33 and the second positioning component 34, they are the same as the structural composition adopted by the ultrasonic knife handle 100, and will not be repeated here.

[0182] Based on the aforementioned ultrasonic tool handle 100 , this embodiment further provides an ultrasonic machining device, including the aforementioned ultrasonic tool handle 100 .

[0183] Based on the aforementioned ultrasonic machining equipment, 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 equipment.

[0184] In summary, the ultrasonic knife handle 100 provided in this embodiment is formed with a detachably connected knife body 1 and transducer housing 2a, so that a mounting portion 4 is formed at the connection position of the knife body 1 and the transducer housing 2a, and the mounting portion 4 is retracted to the knife body 1, so that the outer diameter of the mounting portion 4 is smaller than the outer diameter of the knife body 1. In this way, the bearing 8 is sleeved on the mounting portion 4, which can effectively reduce the specification size of the bearing 8. When the ultrasonic knife handle 100 rotates at a high speed, the linear speed of the inner ring of the bearing 8 can be effectively reduced, thereby reducing the heat generated by the bearing 8, so as to increase the service life of the bearing 8, and solve the problem that the existing ultrasonic knife handle 100 needs to frequently repair and replace the bearing 8.

[0185] Furthermore, the ultrasonic knife handle 100 of the present embodiment provides an electrical connection path in the knife body 1 and the mounting portion 4, so that the wireless receiving component 3 can be installed on the knife body 1 and be connected to the transducer 2b. Moreover, the built-in electrical connection path can ensure that the wire between the wireless receiving component 3 and the transducer 2b will not be affected by the high-speed rotation of the ultrasonic knife handle 100, thereby avoiding interference between the wire and the outer shell component 5 and the bearing 8, thereby affecting the normal operation of the ultrasonic knife handle 100.

[0186] Furthermore, the cooling channel 13 and the first cooling air path 14 are provided in the ultrasonic knife handle 100 of the present embodiment, and the first cooling air path 14 is used to cool the transducer 2b, thereby reducing the heat generation of the transducer 2b and preventing the transducer 2b from overheating and causing the ultrasonic knife handle 100 to fail to work normally. The cooling channel 13 is connected to the first cooling air path 14 at the rear end of the transducer housing 2a, so that the airflow passes through the transducer 2b along the axial direction of the knife body 1, thereby ensuring the flow rate of the cold air in the transducer housing 2a and avoiding the flow rate loss caused by the cold air turning in the transducer housing 2a.

[0187] In addition, the ultrasonic knife handle 100 of the present embodiment is provided with mutually independent first air inlet passage 14c and second air inlet passage 27a, so that the first cooling air path 14 and the second cooling air path 27 are independent of each other and do not interfere with each other. In this way, the ultrasonic knife handle 100 can use the first cooling air path 14 and the second cooling air path 27 to independently supply air to the transducer 2b and the cutter 43 according to the heating conditions of the transducer 2b and the cutter 43, thereby realizing independent cooling of the transducer 2b and the cutter 43.

[0188] In addition, the ultrasonic knife handle 100 of the present embodiment is provided with a limiting structure, so that when the ultrasonic knife handle 100 is detached from the main shaft, the first positioning component 33 and the second positioning component 34 cooperate with each other, so that the first positioning component 33 extends into the positioning groove 32, so that the relative position of the knife body 1 and the outer shell component 5 is fixed, thereby keeping the knife body 1 and the outer shell component 5 relatively still. When the ultrasonic knife handle 100 is connected to the main shaft, the limiting structure can be unlocked from the positioning groove 32, so that the knife body 1 and the transducer housing 2a can rotate relative to the outer shell component 5, without affecting the normal operation of the ultrasonic knife handle 100.

[0189] This embodiment also provides an ultrasonic machining device and a machine tool, which use the aforementioned ultrasonic tool handle 100 and have the beneficial effects of the aforementioned ultrasonic tool handle 100 .

[0190] The first positioning assembly 33 and the second positioning assembly 34 of this embodiment are also applicable to non-ultrasonic tool handles and integrated tool handles, and have the beneficial effects of the aforementioned first positioning assembly 33 and the second positioning assembly 34. In addition, this embodiment also provides a machine tool, which is applied to this type of tool handle and has the beneficial effects of this type of tool handle.

[0191] 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 principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic knife handle, characterized in that: It includes a blade body, a transducer housing, an outer housing component and a wireless receiving component, wherein: The blade body is coaxially arranged with the transducer housing, and the blade body is detachably connected with the transducer housing, and forms a mounting portion contracted in the transducer housing, and the outer housing assembly is sleeved on the mounting portion through a bearing; The wireless receiving component is arranged on the outer peripheral side of the blade body, and the wireless receiving component is arranged on the rear side of the mounting portion and is electrically connected to the transducer in the transducer housing.

2. The ultrasonic knife handle according to claim 1, characterized in that: The blade body comprises a main body portion and a first protrusion portion located at the front end of the main body portion, the outer diameter of the first protrusion portion is smaller than the outer diameter of the main body portion adjacent to the mounting portion, and the transducer housing comprises a housing portion and a second protrusion portion located at the rear end of the housing portion, the outer diameter of the second protrusion portion is smaller than the outer diameter of the housing portion adjacent to the mounting portion, and the second protrusion portion is nested and connected with the first protrusion portion so that the first protrusion portion and the second protrusion portion form the mounting portion; the bearing sleeve is arranged on the first protrusion portion.

3. The ultrasonic knife handle according to claim 1, characterized in that: The blade body is provided with a first electrical connection channel, the first electrical connection channel passes through the outside of the blade body to be connected to the wireless receiving component; and A second electrical connection channel is disposed in the mounting portion, and one end of the second electrical connection channel is connected to the first electrical connection channel, so that the first electrical connection channel and the second electrical connection channel form an electrical connection passage.

4. The ultrasonic knife handle according to claim 3, characterized in that: The blade body has a first protrusion extending toward the front end, the transducer housing has a second protrusion extending toward the rear end, the second protrusion is embedded in the first protrusion, so that the first protrusion and the second protrusion form the mounting portion, and, The second electrical connection channel is disposed in the first protrusion and passes through to the front end of the blade body; the first electrical connection channel is connected to the rear end of the second electrical connection channel; and, A third electrical connection channel is provided in the transducer housing, and the third electrical connection channel is communicated with the second electrical connection channel and is connected to the transducer.

5. The ultrasonic knife handle according to claim 4, characterized in that: The ultrasonic knife handle includes a first conductive member and a second conductive member, wherein the first conductive member is arranged in the second electrical connection channel and is electrically connected to the wireless receiving component; the second conductive member is arranged in the third electrical connection channel and can form a plug-in fit with the first conductive member, and the second conductive member is electrically connected to the transducer.

6. The ultrasonic knife handle according to claim 5, characterized in that: An insulating member is disposed in the transducer housing, and the insulating member is arranged at least on the outer peripheral side of the transducer and is spaced apart from the transducer; and A wire groove is provided on the outer side of the insulating member, and the wire groove is connected to the inner side of the insulating member.

7. The ultrasonic knife handle according to claim 6, characterized in that: The transducer includes a piezoelectric vibrator, the insulating member extends to the rear end of the piezoelectric vibrator, and The lead groove extends from the rear end of the piezoelectric vibrator to the outer peripheral side of the piezoelectric vibrator, and the projections of the first conductive member and the second conductive member in the front-rear direction are located in the lead groove.

8. The ultrasonic knife handle according to claim 1, characterized in that: The transducer housing is provided with an inner cavity for accommodating the transducer, and the inner cavity is communicated with the external environment; and the outer shell component is provided with a first cooling air path communicated with an external cooling air source, and the first cooling air path is communicated with the inner cavity.

9. The ultrasonic knife handle according to claim 8, characterized in that: A sealing cover plate is installed on the outside of the transducer housing, and the sealing cover plate is arranged on the front side of the bearing and located on the rear side of the inner cavity. The outer shell assembly extends to the outer peripheral side of the transducer housing, so that the transducer housing, the sealing cover plate and the outer shell assembly form a first channel, and the first cooling air path is connected to the inner cavity through the first channel.

10. The ultrasonic knife handle according to claim 9, characterized in that: An airflow turbine is arranged in the first channel and is fixed relative to the transducer housing so that the airflow turbine rotates synchronously with the transducer housing, thereby driving the airflow in the first channel into the interior of the transducer housing.

11. The ultrasonic knife handle according to claim 10, characterized in that: The transducer housing is provided with a plurality of air inlet holes penetrating into the inner cavity at one end facing the sealing cover plate, and the airflow turbine comprises a plurality of turbine blades, which are arranged at intervals along the circumference of the transducer housing, and there is at least one air inlet hole between two adjacent turbine blades.

12. The ultrasonic knife handle according to claim 10, characterized in that: The airflow turbine and the sealing cover plate are integrally formed.

13. The ultrasonic knife handle according to claim 9, characterized in that: The outer shell assembly includes a bearing sleeve and an airflow seat, wherein: The bearing sleeve is connected to the outer ring of the bearing, and the bearing sleeve extends to the outer peripheral side of the transducer housing, and forms the first channel together with the transducer housing and the sealing cover plate; The airflow seat is connected to the outer peripheral side of the bearing sleeve and forms a second channel between the airflow seat and the bearing sleeve. The second channel is connected to the first channel, and the airflow seat is provided with a first air inlet channel connected to an external cooling air source. The first air inlet channel is connected to the second channel in sequence to form the first cooling air path.

14. The ultrasonic knife handle according to claim 13, characterized in that: A flow guide is disposed in the second channel. A flow guide groove communicating with the second channel is formed on the flow guide. The flow guide groove is spirally arranged on the outer side of the flow guide in an axial direction with the front-rear direction being a spiral arrangement.

15. The ultrasonic knife handle according to claim 9, characterized in that: The sealing cover plate, the outer shell assembly and the bearing form a gap space, and a sealing fit is provided between the first channel and the gap space to separate the first channel from the gap space.

16. The ultrasonic knife handle according to claim 15, characterized in that: The outer shell component is provided with a pressure relief hole communicated with the gap space, and the pressure relief hole is communicated to the outside of the outer shell component to discharge the gas in the gap space.

17. The ultrasonic knife handle according to claim 8, characterized in that: An insulating member is provided in the transducer housing. The insulating member is arranged at least on the outer peripheral side of the transducer and is spaced apart from the transducer, so that a cooling channel is formed between the insulating member and the transducer, and the cooling channel is connected to the inner cavity.

18. The ultrasonic knife handle according to claim 17, characterized in that: An air inlet hole penetrating into the inner cavity is arranged at one end of the transducer housing facing the bearing, and exhaust holes are arranged penetratingly on the peripheral side of the transducer housing, and the air inlet hole and the exhaust holes are connected to the cooling channel; and the cross-sectional profile of the outer peripheral side of the transducer housing is circular, and the exhaust holes are extended along the tangent direction of the circle.

19. The ultrasonic knife handle according to claim 1, characterized in that: The front end of the transducer housing is connected with a horn, and the front end of the horn is used to connect with a tool; and, The outer shell assembly is provided with a first air duct, a second air duct, and a second air inlet passage connected to an external cooling air source, wherein the first air duct is arranged to extend in the front-to-back direction, the second air duct is arranged in the circumferential direction of the amplitude transformer, and the second air inlet passage, the first air duct and the second air duct are connected in sequence to form a second cooling air path, and, A nozzle for cooling the tool is arranged along the arrangement path of the second air duct, and the nozzle is communicated with the second air duct.

20. The ultrasonic knife handle according to claim 19, characterized in that: The outer shell assembly includes a first shell set and a second shell set, the first shell set is arranged at an interval on the outer peripheral side of the transducer shell, and the second shell set is arranged on the outer peripheral side of the first shell set, so that a third channel for accommodating the first air duct and the second air duct is formed between the second shell set and the first shell set, and a jet port connected to the nozzle is opened on the third channel, and the second air duct is connected to the nozzle through the jet port.

21. The ultrasonic knife handle according to claim 20, characterized in that: The outer shell assembly is also provided with a first cooling air path connected to the interior of the transducer shell, a fourth channel is formed between the first shell and the transducer shell, and an exhaust port facing the front is formed between the first shell and the amplitude transformer; the interior of the transducer shell, the exhaust hole on the transducer shell, the fourth channel and the exhaust port are connected in sequence, and the first cooling air path and the second cooling air path are independently arranged.

22. The ultrasonic knife handle according to claim 20, characterized in that: The third channel is filled with a heat-insulating material to form a heat-insulating layer covering the first air duct and the second air duct.

23. The ultrasonic knife handle according to claim 1, characterized in that: The outer peripheral side of the blade body is fixedly connected with a receiving slot body, the wireless receiving component is arranged in the receiving slot body, and a positioning slot is provided on the outer peripheral side of the receiving slot body; and The outer shell component is provided with a first positioning component and a second positioning component that can move relative to the outer shell component. The movement of the second positioning component relative to the outer shell component can drive the first positioning component to move, so that the first positioning component extends into the positioning groove, so that the receiving groove body and the outer shell component are relatively stationary; and the first positioning component can be driven out of the positioning groove, so that the receiving groove body and the outer shell component can rotate relative to each other.

24. The ultrasonic knife handle according to claim 23, characterized in that: The first positioning assembly includes a swing block, which is rotatably connected to the outer shell assembly to reciprocate toward or away from the receiving slot body so that the swing block extends into the positioning slot or escapes from the positioning slot.

25. The ultrasonic knife handle according to claim 24, characterized in that: The first positioning assembly further includes a slider, the slider being configured to be capable of reciprocatingly moving toward the knife body at the outer peripheral side of the knife body; and, One end of the swing block away from the receiving slot is rotatably connected to the slider, and one end of the slider away from the knife body abuts against the second positioning assembly, so that the slider is driven close to the knife body, which can drive the swing block to rotate, so that the other end of the swing block is disengaged from the positioning slot.

26. The ultrasonic knife handle according to claim 25, characterized in that: The outer shell assembly is further provided with a first elastic member, and one end of the first elastic member abuts against one end of the slider close to the knife body, and the other end of the first elastic member is fixedly provided; and, One end of the slider close to the second positioning component is rotatably connected to a pulley, and the outer edge of the pulley extends out of the slider, so that the pulley is in rolling contact with the second positioning component, so that the second positioning component can drive the slider close to the knife body through the pulley.

27. The ultrasonic knife handle according to claim 25, characterized in that: The second positioning assembly includes a positioning column that can move along the axial direction of the knife body, and one end of the sliding block away from the knife body can abut against the positioning column to drive the swing block out of the positioning groove; and The second positioning assembly also includes a limiting block connected to the front end of the positioning column, and the limiting block is provided with an avoidance position recessed toward its inner side, so that the sliding block can move away from the knife body and extend into the avoidance position, thereby driving the swing block to rotate and drive the swing block to extend into the positioning groove.

28. The ultrasonic knife handle according to claim 27, characterized in that: The outer peripheral side of the limiting block is provided with an inclined surface inclined to the axial direction of the blade body, the inclined surface is arranged on the rear side of the avoidance position and continues to the outer peripheral surface of the positioning column, and the inclined surface gradually converges toward the front side of the limiting block and is connected to the avoidance position.

29. The ultrasonic knife handle according to claim 27, characterized in that: A second elastic member is also provided on the outer shell component, one end of the second elastic member abuts against the front end of the second positioning component, and the other end of the second elastic member is fixedly provided.

30. The ultrasonic knife handle according to claim 25, characterized in that: The outer shell assembly is provided with a first mounting groove, a second mounting groove and a third mounting groove, wherein: The first mounting groove is arranged on the outer peripheral side of the blade body and extends toward the blade body, and the slider can reciprocate in the first mounting groove; The second mounting groove is arranged along the axial direction of the blade body, and the front end of the second mounting groove is communicated with the first mounting groove, and the rear end of the second mounting groove is communicated with the positioning groove; the swing block is rotatably connected in the second mounting groove, and the rear end of the swing block extends out of the second mounting groove; The third mounting groove is arranged along the axial direction of the knife body, and the second positioning assembly reciprocates in the third mounting groove, and the end of the first mounting groove away from the knife body is connected to the third mounting groove, so that the sliding block can extend out of the first mounting groove and enter the third mounting groove.

31. An ultrasonic processing device, characterized in that: Comprising the ultrasonic knife handle described in any one of claims 1-30.

32. A machine tool, characterized in that: It includes a machine tool body, a spindle arranged on the machine tool body, and the ultrasonic machining equipment according to claim 31.

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