Ultrasonic cutter handle, ultrasonic machining equipment and machine tool

Abstract

The utility model discloses an ultrasonic cutter handle, ultrasonic machining equipment and a machine tool, and relates to the technical field of drilling machining equipment, the ultrasonic cutter handle comprises a cutter handle body, and the cutter handle body is provided with a positioning groove arranged along the circumferential direction of the cutter handle body; the receiving part is arranged on the peripheral side of the knife handle body and can receive an electric signal; the positioning assembly is arranged on the peripheral side of the cutter handle body and can rotate synchronously with the receiving part. And the positioning assembly is arranged to be capable of moving towards the knife handle body, extending into the positioning groove and being far away from the knife handle body so as to be separated from the positioning groove. The ultrasonic knife handle is provided with the positioning assembly, so that the ultrasonic knife handle can move towards the knife handle body and extend into the positioning groove through the positioning assembly under the condition that the ultrasonic knife handle is separated from the main shaft, the relative position of the knife handle body and the positioning assembly is fixed, and the knife handle body is driven to be away from the knife handle body and separated from the positioning groove through the positioning assembly. The cutter handle body can rotate relative to the positioning assembly.

Description

Technical Field

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

[0002] In ultrasonic processing, generally, a voltage or current is applied to an ultrasonic tool holder by an ultrasonic generator, so that an ultrasonic vibration element therein performs high-frequency ultrasonic vibration, and drives a tool mounted on the ultrasonic tool holder to vibrate, thereby performing processing. The existing power supply methods of ultrasonic tool holders include contact power supply. Among them, in contact power supply, contacts are generally arranged on a receiving seat and a transmitting seat respectively. When the contacts of the receiving seat are connected to the contacts of the transmitting seat, an electrical signal is transmitted from the transmitting seat to the receiving seat.

[0003] At present, the transmitting seat is generally fixedly connected to the spindle of the processing equipment, while the receiving seat is connected to the ultrasonic tool holder and can rotate relative to the ultrasonic tool holder. Moreover, a preset position is provided between the ultrasonic tool holder and both the receiving seat and the transmitting seat. When the relative positions between the ultrasonic tool holder and the receiving seat and the transmitting seat respectively meet the corresponding preset positions, the ultrasonic tool holder can be connected to the spindle and driven by the spindle. When the ultrasonic tool holder of the processing equipment is replaced, the ultrasonic tool holder is separated from the spindle, and the ultrasonic tool holder may rotate relative to the receiving seat, resulting in a change in the relative position between the ultrasonic tool holder and the receiving seat. The relative position between the ultrasonic tool holder and the receiving seat no longer meets the preset position, resulting in a change in the relative position between the receiving seat and the transmitting seat, and the two cannot be electrically connected when reloading the tool, thereby affecting the automatic tool change process of the processing equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide an ultrasonic tool holder, an ultrasonic processing equipment and a machine tool. By setting a positioning component to lock the relative position between the tool holder body and the receiving seat, the tool holder body can maintain the relative position with the receiving seat, ensuring that the ultrasonic tool holder can be applied to the processing equipment to realize automatic tool change and realize the electrical connection between the receiving seat and the transmitting seat, so as to solve the problem that the existing ultrasonic tool holder is difficult to realize automatic tool change.

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

[0006] An ultrasonic tool holder, comprising:

[0007] A tool holder body, on which a positioning groove is provided;

[0008] A fixing component, which is rotatably sleeved on the tool holder body;

[0009] A receiving part, which is arranged on the fixing component, and the receiving part can receive an electrical signal and transmit the electrical signal to a transducer in the tool holder body;

[0010] A positioning component, which is arranged on the fixing component; and,

[0011] The positioning component is configured to be able to move towards the tool holder body and extend into the positioning groove, so that the tool holder body and the fixing component are relatively stationary, and be able to move away from the tool holder body to disengage from the positioning groove, so that the tool holder body and the fixing component can rotate relative to each other.

[0012] In some embodiments, the positioning component includes a top block, which is fixedly connected, and,

[0013] The top block is configured to be able to reciprocate close to or away from the tool holder body, so that the top block extends into the positioning groove or the top block disengages from the positioning groove.

[0014] In some embodiments, the positioning component further includes a slider group fixedly connected to the top block. The slider group includes an upper slider and a lower slider arranged in sequence along the axial direction of the tool holder body. Among them,

[0015] The upper slider can reciprocate along the axial direction of the tool holder body, and a first inclined surface facing away from the tool holder body is arranged on the upper slider, and the first inclined surface inclines towards the tool holder body side from top to bottom;

[0016] The lower slider can reciprocate close to or away from the tool holder body, and the lower slider is connected to the top block. And a second inclined surface facing the tool holder body is arranged on the lower slider, and the second inclined surface inclines towards the tool holder body side from top to bottom. And,

[0017] The first inclined surface and the second inclined surface are mutually attached and can produce relative sliding, so that the upper slider moves along the axial direction of the tool holder body towards the lower slider and can squeeze the lower slider, so that the lower slider moves away from the tool holder body, and the top block disengages from the positioning groove.

[0018] In some embodiments, a clamping groove is arranged on the lower slider, and the top block is embedded in the clamping groove so that the top block and the lower slider move synchronously.

[0019] In some embodiments, a lower notch is arranged on the side surface of the upper slider facing the tool holder body, and the lower slider passes through the lower notch and is connected to the top block.

[0020] In some embodiments, the fixing component includes an upper cover body; a positioning groove is arranged on the upper end surface of the upper cover body, and the positioning groove can communicate with the positioning groove; the positioning component is arranged in the positioning groove.

[0021] In some embodiments, it further includes a slider cover located above the positioning groove, and the slider cover is connected to the upper cover to limit the axial displacement of the positioning component.

[0022] In some embodiments, a guiding hole is provided on the slider cover, and the guiding hole penetrates through the slider cover along the axial direction of the tool handle body, and

[0023] the upper slider is provided with a guiding portion extending along the axial direction of the tool handle body, and the guiding portion extends into the guiding hole to guide the moving direction of the upper slider.

[0024] In some embodiments, the positioning component further includes a first elastic member, the top block abuts against the first elastic member, and the first elastic member can apply a force to the top block to move towards the tool handle body, so that the top block extends into the positioning groove.

[0025] In some embodiments, the top block includes a first guiding section and a second guiding section, and the first guiding section and the second guiding section are arranged at an angle; the first guiding section is located on the side of the second guiding section close to the tool handle body, one end of the first guiding section can extend into the positioning groove, the other end is connected to the second guiding section, and the second guiding section is connected to the slider group.

[0026] In some embodiments, the positioning component further includes a first elastic member abutting against the top block, both the slider group and the first elastic member are two groups, and both are located on the side of the second guiding section far from the tool handle body. Each slider group is respectively connected to both ends of the second guiding section, and each first elastic member is arranged at intervals between the two slider groups and is connected to the second guiding section.

[0027] In some embodiments, the first guiding section is perpendicular to the second guiding section, and the first guiding section is arranged along the radial direction of the tool handle body.

[0028] In some embodiments, the positioning component and the receiving portion are located on the same side of the tool handle body.

[0029] Based on the foregoing ultrasonic tool handle, the present invention further provides an ultrasonic processing device, including the foregoing ultrasonic tool handle and a transmitting seat. A power supply portion capable of being conducted with the receiving portion is installed on the transmitting seat, and

[0030] Based on the foregoing ultrasonic processing equipment, the present utility model further provides a machine tool, which includes a machine tool body, a spindle disposed on the machine tool body, and the foregoing ultrasonic processing equipment, and the transmitting seat is mounted on the spindle.

[0031] Compared with the prior art, the beneficial effects of an ultrasonic tool shank, an ultrasonic processing equipment, and a machine tool according to the embodiments of the present utility model are as follows:

[0032] The ultrasonic tool shank of the present utility model is provided with a positioning component, so that when the ultrasonic tool shank is separated from the spindle, it can move toward the tool shank body through the positioning component and extend into the positioning groove, so that the relative position between the tool shank body and the positioning component is fixed. Since both the positioning component and the receiving part are mounted on the fixing component, in this way, the relative position between the receiving part and the tool shank body can be locked, so that the tool shank body can remain relatively stationary with respect to the receiving part. When the present ultrasonic tool shank is connected to the spindle, the receiving part can be electrically connected to the power supply structure of the processing equipment. The relative positions of the receiving seat and the transmitting seat remain unchanged, and electrical connection can be achieved without affecting tool change. Moreover, the tool shank body can be rotated relative to the positioning component by being driven away from the tool shank body and disengaged from the positioning groove by the positioning component.

[0033] Furthermore, by providing a cooperating upper slider and lower slider on the ultrasonic tool shank of the present utility model, when the upper slider moves axially along the tool shank body toward the lower slider, it can squeeze the lower slider, causing the lower slider to move away from the tool shank body. In this way, the moving direction of the upper slider intersects with the moving direction of the lower slider, which can not only utilize the space in the axial direction of the tool shank body to avoid excessive radial structural dimensions of the tool shank body, but also cooperate with the power supply structure. When the power supply structure is connected to the present ultrasonic tool shank, it simultaneously squeezes the upper slider, driving the upper slider to move toward the lower slider, causing the lower slider to drive the top block out of the positioning groove. When the power supply structure is disconnected from the ultrasonic tool shank, the top block can extend into the positioning groove to ensure that the tool shank body can remain relatively stationary with respect to the receiving part.

[0034] The present utility model further provides an ultrasonic processing equipment and a machine tool, which apply the foregoing ultrasonic tool shank and have the beneficial effects of the foregoing ultrasonic tool shank. Description of the Drawings

[0035] Figure 1 is a schematic diagram of an ultrasonic tool shank in an embodiment of the present utility model;

[0036] Figure 2 is a partial structural cross-sectional view of an ultrasonic tool shank in an embodiment of the present utility model;

[0037] Figure 3 is Figure 2 an enlarged view of A in

[0038] Figure 4 is Figure 3 an enlarged view of C in

[0039] Figure 5 It is a schematic diagram of the air flow path of the ultrasonic tool handle in the embodiment of the present utility model;

[0040] Figure 6 It is a schematic diagram of the tool handle body in the embodiment of the present utility model;

[0041] Figure 7 It is a schematic cross-sectional view of the tool handle body in the embodiment of the present utility model;

[0042] Figure 8 It is a schematic diagram of the transducer housing in the embodiment of the present utility model;

[0043] Figure 9 It is a schematic cross-sectional view of the transducer housing in the embodiment of the present utility model;

[0044] Figure 10 It is a schematic diagram of the connection between the tool handle body and the transducer housing in the embodiment of the present utility model;

[0045] Figure 11 It is a schematic diagram of another implementation manner of the tool handle body in the embodiment of the present utility model;

[0046] Figure 12 It is a schematic diagram of another implementation manner of the transducer housing in the embodiment of the present utility model;

[0047] Figure 13 It is a schematic diagram of one implementation manner of the conductive connecting member in the embodiment of the present utility model;

[0048] Figure 14 It is a schematic diagram of the ultrasonic processing equipment in the embodiment of the present utility model;

[0049] Figure 15 It is a schematic diagram of the air core in the embodiment of the present utility model;

[0050] Figure 16 It is a schematic cross-sectional view of the air core in the embodiment of the present utility model;

[0051] Figure 17 It is a partial structural cross-sectional view of the ultrasonic processing equipment in the embodiment of the present utility model;

[0052] Figure 18 It is Figure 17 An enlarged view of D in;

[0053] Figure 19 It is a schematic diagram of the horn in the embodiment of the present utility model;

[0054] Figure 20 It is a schematic diagram of another perspective of the ultrasonic processing equipment in the embodiment of the present utility model;

[0055] Figure 21 is Figure 20 The sectional view taken along line E - E in the [figure];

[0056] Figure 22 is Figure 21 The enlarged view of F in the [figure];

[0057] Figure 23 is the schematic diagram of the upper cover body in the embodiment of the present utility model;

[0058] Figure 24 is the schematic diagram of the upper slider in the embodiment of the present utility model;

[0059] Figure 25 is the schematic diagram of the lower slider in the embodiment of the present utility model;

[0060] Figure 26 is the schematic diagram of the slider cover body in the embodiment of the present utility model.

[0061] In the figure, 100, ultrasonic tool handle; 200, ultrasonic machining equipment;

[0062] 1. Knife body; 1a. First convex part; 11a. First mounting hole; 110a. Limiting ring; 1b. Body part; 10b. Flange structure; 11b. Second limiting groove; 10c. Flange; 2a. Transducer housing; 20a. Inner cavity; 21a. Housing part; 210a. Installation channel; 22a. Second convex part; 220a. First limiting groove; 23a. Step hole; 230a. Large-diameter section; 231a. Small-diameter section; 24a. Second mounting hole; 2c. Transducer; 3. Conductive component; 3a. Conductive ring; 30a. Rear conductive body; 31a. Front conductive body; 3b. Conductive mounting part; 30b. Mounting groove; 31b. Accommodating groove; 3c. Conductive pressure cover part; 3d. Conductive connecting piece; 30d. Insulating mounting seat; 31d. Conductive matching piece; 32d. Elastic conductive sheet; 3e. Conductive member; 4. Mounting part; 5. Fixing component; 5a. Cavity; 5b. Upper cover body; 50b. Upper groove; 51b. Positioning groove; 5c. Outer housing; 5d. Lower cover body; 5e. Receiving seat; 6. Brush fixing bracket; 7. Bearing gland; 8. First bearing; 9. Bearing pressing part; 10. Annular groove; 11. Limiting block; 12. End cover block; 13. Sealing ring; 14. Transducer cooling branch; 14a. Transducer first branch; 14b. Transducer second branch; 14c. Transducer third branch; 14d. Transducer fourth branch; 15. Conductive component cooling branch; 15a. Upper air path; 16. Airway pressure ring part; 16a. Intake channel; 16b. Pressure ring air path; 17. Shunt air path; 18. Transducer spiral air path; 19. Guide air nozzle; 20. Air nozzle elastic part; 21. Positioning component; 21b. Lower slider; 210b. Second inclined surface; 211b. Clamping groove; 21c. Top block; 210c. First guiding section; 211c. Second guiding section; 21d. Slider cover body; 210d. Guiding hole; 21e. Upper slider; 210e. First inclined surface; 211e. Guiding part; 212e. Lower notch; 22. Positioning groove; 23. Positioning elastic part; 24. Emitter seat; 25. Power supply side contact; 26. Power consumption side contact; 27. Second channel; 27a. Step part; 28. Air core; 28a. Air core airway; 28b. Intake hole; 28c. Sealing groove; 29. Air core elastic part; 30. Locking part; 31. Collar; 32. Clamping block; 33. Horn; 301a. Flange part; 300a. Second through hole. Detailed implementation manners

[0063] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0064] In the description of the present utility model, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "mounted", "connected", and "connected to" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0065] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation of the present utility model.

[0066] In the description of the present utility model, it should be understood that the terms "first" and "second" in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0067] Embodiment

[0068] Reference Figures 1 - 26 , an embodiment of the present utility model provides an ultrasonic tool handle 100, which includes a tool body 1, a transducer assembly, and a conductive assembly 3. Among them, taking the end side where the ultrasonic tool handle 100 is connected to the processing tool as the front side, the transducer assembly includes a transducer housing 2a and a transducer 2b. An inner cavity 20a is provided in the transducer housing 2a to accommodate the transducer 2c. The tool body 1 is detachably connected to the transducer housing 2a and forms a mounting portion 4. When the tool body 1 is connected to the transducer housing 2a, it is the tool handle body.

[0069] It can be understood that the transducer 2b generally includes a piezoelectric vibrator for converting electromagnetic energy into mechanical energy. The horn 33 installed at its front end is a component for expanding the mechanical amplitude. Generally speaking, the piezoelectric vibrator is installed in the inner cavity 20a, and the horn 33 extends from the inner cavity 20a to the front side of the transducer assembly and is connected to the machining tool. The specific setting of the transducer 2b can be specifically set according to the application scenario of the ultrasonic tool shank 100 and the machining target, which will not be elaborated here.

[0070] The performance of the transducer assembly is closely related to the size of the transducer 2b, such as the size of the piezoelectric vibrator. Since the piezoelectric vibrator is installed inside the inner cavity 20a of the transducer housing 2a, generally, the size of the inner cavity 20a inside the transducer housing 2a will also reflect the performance of the transducer assembly. Changing the size of the inner cavity 20a will affect the performance of the transducer assembly, such as the output power.

[0071] The conductive component 3 is sleeved on the mounting portion 4. As an example of this embodiment, the conductive component 3 includes a conductive ring 3a electrically connected to the transducer 2b in the transducer housing 2a, and the outer diameter of the conductive ring 3a is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion 4. In this way, the conductive ring 3a does not need to be arranged on the outer peripheral side of the transducer housing 2a, and the outer diameter of the conductive ring 3a can be effectively reduced. When other conductive elements that can match the conductive ring 3a slide relatively on the outer peripheral side of the conductive ring 3a, at the same rotational speed, compared with the conductive ring directly installed on the outer periphery of the transducer housing, in the solution of the present application, the linear velocity of the conductive ring 3a sleeved on the mounting portion 4 can be significantly reduced. Furthermore, the conductive ring 3a can work at a relatively high rotational speed, and the frictional heat generation of the conductive ring 3a can be reduced, improving the service life of the conductive component 3. For example, for the HSK63 ultrasonic tool shank, its rotational speed can be as high as 3000 - 4000 r / min, and the service life of the conductive component 3 is maintained in a better state.

[0072] Moreover, the conductive component 3 is sleeved on the mounting portion 4 formed by the detachable connection between the tool body 1 and the transducer housing 2a. By means of the disassembly of the tool body 1 and the transducer housing 2a, a small-sized integral conductive ring can be directly sleeved on the mounting portion 4 instead of using a split conductive ring structure. In this way, problems such as the need to coat a material with good electrical conductivity such as silver on the cross-section to enhance conductivity due to the large magnetic resistance caused by the gap between the two half-rings of the split conductive ring, and the need to ensure the roughness of the cross-section with more usage restrictions and poor electrical transmission performance can be avoided. Moreover, by means of the detachable connection between the tool body 1 and the transducer housing 2a, a new conductive component 3 can be replaced when the performance of the conductive component 3 deteriorates, thereby further extending the service life of the ultrasonic tool shank 100.

[0073] It should be noted that in order to reduce the linear velocity of the slip ring 3a without affecting the performance of the transducer, the mounting portion 4 formed by the connection between the tool body 1 and the transducer housing 2a is at different positions axially of the ultrasonic tool handle 100 from the inner cavity body 20a. In this way, when the slip ring 3a is adjusted in specification according to functional requirements, it will not affect the specification of the transducer 2b arranged in the inner cavity body 20a, ensuring that the power of the transducer 2b can meet the functional requirements of the ultrasonic tool handle 100.

[0074] It can be understood that there are various ways to achieve the detachable connection between the tool body 1 and the transducer housing 2a. Therefore, there are various ways to form the mounting portion 4. The mounting portion 4 only needs to ensure that the tool body 1 and the transducer housing 2a can be detachably connected, and the connection between the tool body 1 and the transducer housing 2a is the mounting portion 4. For example, the mounting portion 4 can be formed by the detachable connection between a part of the integral structure of the tool body 1 and a part of the integral structure of the transducer housing 2a. At this time, the mounting portion 4 is both a part of the tool body 1 and a part of the transducer housing 2a. Or, the mounting portion 4 can also be formed by the connection between a structure detachably connected to the tool body 1 and a structure detachably connected to the transducer housing 2a, or formed by a single structure detachably connected to the tool body 1 and the transducer housing 2a respectively. At this time, the mounting portion 4 is a connection structure independent of the tool body 1 and the transducer housing 2a. Of course, the mounting portion 4 can also be a part of the integral structure of the tool body 1 or a part of the integral structure of the transducer housing 2a. By connecting the part of the integral structure of the tool body 1 to the transducer housing 2a, or connecting the part of the integral structure of the transducer housing 2a to the tool body 1, the tool body 1 and the transducer housing 2a can be detachably connected to each other.

[0075] It can be understood that since the slip ring 3a is sleeved on the mounting portion 4, in order to ensure that the outer diameter of the slip ring 3a is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion, the outer diameter of the mounting portion 4 itself is generally less than the outer diameter of the transducer housing 2a. Of course, it is also possible to make the outer diameter of a part of the mounting portion 4 less than the outer diameter of the transducer housing 2a by making the outer diameter of the connection end face between the tool body 1 and the transducer housing 2a less than the outer diameter of the transducer housing 2a, so that the outer diameter of the slip ring 3a mounted in this area is less than the outer diameter of the transducer housing 2a.

[0076] The mounting portion 4 can be provided with a mounting space, such as an annular groove. Of course, it can also form an annular groove with the adjacent transducer housing 2a and the tool body 1 for the conductive component 3 to be sleeved and installed, and ensure that the outer diameter of the slip ring 3a of the conductive component 3 is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion 4.

[0077] Considering that the tool body 1 is often driven by being connected to the spindle, in the ultrasonic tool holder 100, the tool body 1 is often configured with a flange structure 10b for abutting against the end of the spindle. This flange structure 10b is generally adapted to the spindle and can also reflect the operating performance of the tool body 1. Therefore, when the outer diameter of the slip ring 3a is less than or equal to the outer diameter of the transducer housing 2a adjacent to the mounting portion, the outer diameter of the slip ring 3a can also be made less than or equal to the outer diameter of the flange structure 10b of the tool body 1.

[0078] Taking the example where the part of the integrated structure of the tool body 1 and the part of the integrated structure of the transducer housing 2a are connected to form the mounting portion 4, the ultrasonic tool holder 100 of this embodiment will be further described below.

[0079] As an example of this embodiment, the transducer housing 2a includes a housing portion 21a and a second protrusion portion 22a arranged in sequence along its own axis. The housing portion 21a is located on the front side of the second protrusion portion 22a, and an inner cavity 20a is provided in the housing portion 21a to accommodate the transducer 2b.

[0080] The transducer housing 2a is an axial structure. Among them, the outer diameter of the second protrusion portion 22a is smaller than the outer diameter of the housing portion 21a, so that the second protrusion portion 22a forms a structure protruding from the rear side of the housing portion 21a. In this way, the inner cavity 20a is always arranged in the housing portion 21a, and the change in the specification size of the second protrusion portion 22a will not affect the specification size of the inner cavity 20a, ensuring the performance of the transducer 2b. Of course, in other examples, the housing portion 21a and the second protrusion portion 22a of the transducer housing 2a can also be distinguished according to other criteria. For example, taking the boundary of the inner cavity 20a as the demarcation line between the housing portion 21a and the second protrusion portion 22a. At this time, the inner cavity 20a is still arranged in the housing portion 21a, and the change in the specification size of the second protrusion portion 22a still will not affect the specification size of the inner cavity 20a.

[0081] The tool body 1 and the transducer housing 2a are coaxially arranged. Moreover, the tool body 1 has a first protrusion portion 1a and a body portion 1b arranged in sequence along its own axis. The first protrusion portion 1a is located on the front side of the body portion 1b. The outer diameter of the first protrusion portion 1a is smaller than the outer diameter of the body portion 1b, and the first protrusion portion 1a is detachably connected to the second protrusion portion 22a, so that the tool body 1 and the transducer housing 2a are detachably connected, and the mounting portion 4 is formed by the connection portion between the first protrusion portion 1a and the second protrusion portion 22a.

[0082] The tool body 1 is in the shape of a shaft. The first protrusion 1a of the tool body 1 is connected to the second protrusion 22a. The main body portion 1b of the tool body 1 is used to connect to the main shaft. Therefore, when this ultrasonic tool holder 100 is applied to process materials, the main body portion 1b of the tool body 1 is connected to the main shaft, enabling the tool body 1 to be driven by the main shaft to rotate. As a result, the transducer assembly and the processing tool connected to the first protrusion 1a of the tool body 1 rotate synchronously to perform the processing operation.

[0083] It can be understood that the first protrusion 1a and the main body portion 1b divided by the aforementioned tool body 1, and the housing portion 21a and the second protrusion 22a divided by the transducer housing 2a are only used to illustrate the detachable connection between the tool body 1 and the transducer housing 2a, and do not limit the structures on the tool body 1 and the transducer housing 2a that need to have obvious demarcations, so that the tool body 1 and the transducer housing 2a form a two-piece structure. In specific applications, the structures of the tool body 1 and the transducer housing 2a can adopt an integral connection structure or a segmented structure according to the application scenario, and the two structures do not necessarily have the design of the two-piece structure division.

[0084] Considering the mechanical strength of the ultrasonic tool holder 100 and the conduction efficiency of the slip ring 3a, when the slip ring 3a is sleeved on the installation portion 4, the outer diameter of the slip ring 3a is greater than 50% of the outer diameter of the transducer housing 2a adjacent to the installation portion 4. The specification size of the slip ring 3a will affect the conduction efficiency of the slip ring 3a. If the size of the slip ring 3a is too small, it will mainly lead to a decrease in the strength of the ultrasonic tool holder 100, and the efficiency of the electrical signal received by the transducer 2b will also be affected, resulting in the transducer 2b being unable to operate at the set power, or the axial length of the slip ring 3a needs to be extended to increase the contact area with the brush and increase the transmission efficiency, but this will result in a larger axial size of the ultrasonic tool holder 100 and a large loss of ultrasonic performance. By defining the lower limit of the outer diameter size of the slip ring 3a, in this way, the mechanical strength of the ultrasonic tool holder 100 is ensured, and the energy transmission is not affected.

[0085] It should be noted that the aforementioned transducer housing 2a adjacent to the installation portion 4 or the tool body 1 adjacent to the installation portion 4 refers to the part of the transducer housing 2a located beside the installation portion 4 or the part of the tool body 1 located beside the installation portion 4 in the axial direction of the tool body 1.

[0086] Reference Figures 1 - 13, As an example of this embodiment, the ultrasonic tool handle 100 further includes a fixing component 5. The fixing component 5 is rotatably sleeved on the outer peripheral side of the transducer housing 2a and is rotatably connected to the transducer housing 2a, so that both a part of the transducer housing 2a and a part of the tool body 1 can rotate relative to the fixing component 5. Moreover, a cavity 5a for accommodating the conductive component 3 is provided in the fixing component 5, so that the conductive ring 3a can be wrapped by the fixing component 5 to provide a certain degree of protection through the fixing component 5. Of course, the fixing component 5 can also be rotatably sleeved on the outer peripheral side of the tool body 1 and rotatably connected to the tool body 1 to form a cavity 5a, which can also make both a part of the transducer housing 2a and a part of the tool body 1 rotate relative to the fixing component 5.

[0087] A first bearing 8 can be provided on the outer peripheral side of the transducer housing 2a, with the inner ring of the first bearing 8 sleeved on the housing portion 21a of the transducer housing 2a, and the fixing component 5 is connected to the outer ring of the first bearing 8, so that the transducer housing 2a can rotate relative to the fixing component 5. In this way, the tool body 1 connected to the second convex portion 22a can also rotate relative to the fixing component 5. Of course, in other examples, the bearing can also be provided between the tool body 1 and the fixing component 5, or bearings are provided between both the tool body 1 and the fixing component 5 and the transducer housing 2a and the fixing component 5, so that the tool body 1 and the transducer housing 2a can rotate relative to the fixing component 5 to achieve a rotational connection with the fixing component 5.

[0088] In the foregoing example, a brush fixing frame 6 is provided in the cavity 5a, and a brush (not shown in the figure) that slidably cooperates with the conductive component 3 is installed on the brush fixing frame 6. The external power supply extends into the cavity 5a through a lead wire passing through the fixing component 5 and is connected to the brush fixing frame 6. The brush on the brush fixing frame 6 is slidably connected to the conductive ring 3a and contacts the conductive ring 3a of the conductive component 3 to form a circuit, and the conductive ring 3a is electrically connected to the transducer 2b, so that the transducer 2b is electrically connected to the external power supply to complete the wired transmission of ultrasonic signals.

[0089] Reference Figures 1 - 13 , In the foregoing example, the fixing component 5 includes an upper cover body 5b, an outer housing 5c, and a lower cover body 5d. Among them, the outer housing 5c is disposed between the upper cover body 5b and the lower cover body 5d, and the front side of the outer housing 5c is connected to the lower cover body 5d, and the rear side of the outer housing 5c is connected to the upper cover body 5b to form a cavity 5a. Moreover, the upper cover body 5b is beside the mounting portion 4 and is sleeved on the outer peripheral side of the tool body 1, and the lower cover body 5d is also beside the mounting portion 4 and is sleeved on the outer peripheral side of the transducer housing 2a. In this way, the cavity 5a formed by sequentially splicing the lower cover body 5d, the outer housing 5c, and the upper cover body 5b can accommodate the mounting portion 4, and the conductive component 3 is placed inside the cavity 5a.

[0090] The lower cover 5d is sleeved on the outer ring of the first bearing 8 and extends to the front side of the first bearing 8. The inner ring of the first bearing 8 is connected to the transducer housing 2a, so that the transducer housing 2a can rotate relative to the fixed assembly 5. The fixed assembly 5 also includes a bearing pressing portion 9 located in the cavity 5a. The bearing pressing portion 9 is pressed on the rear side of the first bearing 8. The bearing pressing portion 9 is locked and connected with the lower cover 5d, so that the lower cover 5d is tightly mounted on the outer ring of the first bearing 8.

[0091] It should be noted that, generally speaking, the lower cover body 5d has no direct contact with the housing portion 21a. The significance of the setting of the lower cover body 5d and the bearing pressing portion 9 is that the limiting of the first bearing 8 relies on the flange on the outer periphery of the transducer housing 2a and the bearing pressure cover 7 on the top of the first bearing 8. The bearing pressure cover 7 is installed on the transducer housing 2a and is tightly pressed against the inner ring of the first bearing 8. The bearing pressing portion 9 is installed on the outer ring of the first bearing 8 and is locked with the lower cover body 5d, so that the lower cover body 5d and the outer ring of the first bearing 8 are fixed.

[0092] In order to fix the conductive component 3 in the axial direction of the blade body 1, the mounting portion 4 can form a groove structure with the adjacent blade body and the transducer housing for the installation of the conductive component 3. Figures 1 - 13 As an example of this embodiment, the outer diameter of the second protrusion 22a is smaller than the outer diameter of the shell part 21a, and the outer diameter of the first protrusion 1a is smaller than the outer diameter of the body part 1b, so that after the second protrusion 22a is connected with the first protrusion 1a and forms the mounting part 4, the outer peripheral surface of the mounting part 4, the front end surface of the body part 1b, and the rear end surface of the shell part 21a jointly form an annular groove 10, and the annular groove 10 is arranged along the circumference of the blade body 1, and is provided with an opening toward the outside of the blade body 1, and the annular groove 10 is recessed in the outer peripheral side of the body part 1b and the shell part 21a adjacent to the annular groove 10. The conductive ring 3a is arranged in the annular groove 10 and is electrically connected to the transducer 2b, so that the position of the conductive ring 3a in the axial direction of the blade body 1 is limited by the annular groove 10.

[0093] It is understandable that, since the annular groove 10 is arranged on the mounting portion 4 and its adjacent area, and the conductive ring 3a is installed in the annular groove 10, in order to avoid interference between the first bearing 8 and the conductive ring 3a, the first bearing 8 will avoid the mounting portion 4 and its adjacent area. As an example of this embodiment, the first bearing 8 is arranged on the front side of the annular groove 10 in the axial direction of the blade body 1, so that the upper cover 5b and the bearing pressing part 9 will be adjacent to the annular groove 10 in the axial direction of the blade body 1, so the brush holder 6 can be installed on the upper cover 5b or the bearing pressing part 9, so that the brush installed on the brush holder 6 can be slidably connected with the conductive ring 3a to achieve conduction.

[0094] Of course, the installation part 4 can also be provided with an annular groove 10 by itself. For example, the annular groove 10 is formed on the outer peripheral side of the first convex part 1a or the second convex part 22a. Or, on the outer peripheral side of the first convex part 1a or the second convex part 22a, there are convex parts extending radially outward along the tool body 1, and the annular groove 10 is formed by two convex parts extending side by side. In this way, the annular groove 10 can also be formed on the installation part 4, so that the conductive component 3 can be installed in the annular groove 10 and sleeved on the installation part 4. No separate drawing is provided here for illustration.

[0095] In addition, the fixing component 5 can further include a receiving seat 5e. The receiving seat 5e is arranged on one side of the outer housing 5c and is used for installing the power-consuming side contact 26 (i.e., the power-consuming side connection end) electrically connected to the brush, so that the power-consuming side contact 26 can rotate relative to the tool body 1. And the power-consuming side contact 26 is used for electrically connecting to an external power supply, so that the external power supply can transmit an electrical signal to the conductive component 3 through the power-consuming side contact 26.

[0096] When the ultrasonic tool handle 100 of the present embodiment works, the tool body 1 can drive the transducer housing 2a to rotate and lift. Therefore, the tool body 1 and the transducer housing 2a need to be locked and fixed in the axial direction of the tool body 1. Refer to Figures 6 - 10 , as an example of the present embodiment, the first convex part 1a of the tool body 1 extends forward along the axial direction of the tool body 1, and a first installation hole 11a is provided in the tool body 1 and runs through the first convex part 1a and the body part 1b along the axial direction of the tool body 1; and,

[0097] the second convex part 22a of the transducer housing 2a extends backward along the axial direction of the tool body 1, and a stepped hole 23a running through along the axial direction of the tool body 1 is jointly provided in the second convex part 22a and the housing part 21a of the transducer housing 2a. This stepped hole serves as the second installation hole. Among them, the stepped hole 23a includes a large-diameter section 230aa and a small-diameter section 231a that are communicated with each other. Part of the large-diameter section 230aa is located in the second convex part 22a, and part is located in the housing part 21a; the small-diameter section 231a is located in the housing part 21a and is communicated with the inner cavity 20a.

[0098] The first convex portion 1a is installed within the large-diameter section 230a of the stepped hole 23a, enabling the second convex portion 22a to wrap around the outer peripheral side of the first convex portion 1a, and forming the connection portion between the aforementioned second convex portion 22a and the first convex portion 1a, namely, the installation portion 4; and, a locking member 30 is disposed within the first installation hole 11a. The locking member 30 penetrates the first convex portion 1a along the axial direction of the tool body 1 and extends into the small-diameter section 231a of the stepped hole 23a, and is fixedly connected to the second convex portion 22a to achieve the detachable connection between the first convex portion 1a and the second convex portion 22a. Moreover, the outer peripheral surface of the first convex portion 1a can be set as a conical surface. Correspondingly, the inner peripheral surface of the large-diameter section 230aa of the stepped hole 23a is also set as a conical surface. In this way, when the locking member 30 locks the first convex portion 1a and the second convex portion 22a, the outer peripheral surface of the first convex portion 1a can be closely attached to the inner peripheral surface of the large-diameter section 230aa of the stepped hole 23a, making the first convex portion 1a and the second convex portion 22a closely connected.

[0099] It can be understood that the outer diameter of the first convex portion 1a in the radial direction of the tool body 1 is smaller than the outer diameter of the body portion 1b adjacent to the installation portion in the radial direction of the tool body 1, and the outer diameter of the second convex portion 22a in the radial direction of the tool body 1 is smaller than the outer diameter of the housing portion 21a adjacent to the installation portion in the radial direction of the tool body 1. Therefore, after the first convex portion 1a is embedded into the second convex portion 22a, an annular groove 10 will be formed between the tool body 1 and the transducer housing 2a, which is recessed from the outer peripheral sides of the housing portion 21a and the body portion 1b.

[0100] The connection relationship between the first convex portion 1a and the second convex portion 22a is not unique. As long as the two are connected and fixed in the axial direction of the tool body 1, the tool body 1 and the transducer housing 2a can be locked and fixed in the axial direction of the tool body 1.

[0101] For example, in other examples, referring to Figures 11 - 12 , the first convex portion 1a of the tool body 1 extends forward along the axial direction of the tool body 1, and a first installation hole 11a that penetrates the first convex portion 1a and the body portion 1b along the axial direction of the tool body 1 is provided within the tool body 1. Moreover, a limiting ring 110a is formed by the inner wall of the first installation hole 11a protruding towards the inside of the first installation hole 11a; the second convex portion 22a of the transducer housing 2a extends backward along the axial direction of the tool body 1, and a second installation hole 24a that penetrates along the axial direction of the tool body 1 is jointly provided within the second convex portion 22a and the housing portion 21a of the transducer housing 2a.

[0102] The second protrusion 22a is installed in the first mounting hole 11a and is located on the front side of the limiting ring 110a. The position of the second protrusion 22a in the axial direction of the tool body 1 is restricted by the limiting ring 110a. The second protrusion 22a is installed in the first mounting hole 11a, enabling the first protrusion 1a to wrap around the outer peripheral side of the second protrusion 22a, and forming the connection part between the aforementioned second protrusion 22a and the first protrusion 1a, that is, the mounting part 4.

[0103] A locking member 30 is provided in the first mounting hole 11a. The locking member 30 axially penetrates the limiting ring 110a along the tool body 1 and extends into the second mounting hole 24a, and is fixedly connected to the second protrusion 22a of the transducer housing 2a to achieve the detachable connection between the first protrusion 1a and the second protrusion 22a. The connection and cooperation between the first protrusion 1a and the second protrusion 22a, and the connection and cooperation between the locking member 30 and the transducer housing 2a are the same as Figures 6 - 10 the principle of the structure shown. Since the transducer 2c is installed in the cavity 5a of the housing part 21a, if the locking member 30 is arranged in the second mounting hole 24a on the side of the transducer housing 2a, when it is necessary to disassemble the tool body 1 and the transducer housing 2a, it is necessary to first remove the transducer 2c and then loosen the locking member 30 from the second mounting hole 24a to achieve the disassembly of the tool body 1 and the transducer housing 2a. However, if the locking member 30 is installed in the first mounting hole 11a on the side of the tool body 1, when the ultrasonic tool handle 100 is removed from the spindle, the locking member 30 can be directly loosened to achieve the disassembly of the tool body 1 and the transducer housing 2a. Therefore, the locking member 30 can also be installed in the second mounting hole 24a, but the disassembly is more complex compared to being installed in the first mounting hole 11a.

[0104] For the convenience of installation, referring to Figures 6 - 10 , the first mounting hole 11a can be a counterbore. And a collar 31 is also installed in the first mounting hole 11a. The collar 31 is used to limit the axial displacement of the locking member 30. After the locking member 30 connects and fixes the first protrusion 1a and the second protrusion 22a, the axial displacement amount of the locking member 30 on the tool body 1 is limited by the collar 31. When it is necessary to disassemble the tool body 1 and the transducer housing 2a, the locking member 30 is loosened. Due to the existence of the collar 31, the locking member 30 will not withdraw from the first mounting hole 11a. Continuing to loosen the locking member 30, the tool body 1 is jacked up from the large-diameter hole of the transducer housing 2a, thereby separating the tool body 1 from the transducer housing 2a.

[0105] Referring to Figures 1 - 14, as an example of this embodiment, two first limiting grooves 220a are provided on the rear end surface of the second convex portion 22a. The first limiting grooves 220a are uniformly arranged along the circumferential direction of the second convex portion 22a. Correspondingly, second limiting grooves 11b are provided on the front end surface of the main body portion 1b. A clamping block 32 is installed in each second limiting groove 11b, and each clamping block 32 extends axially into the corresponding first limiting groove 220a along the tool body 1, so that the tool body 1 can better transmit torque to the transducer housing 2a. Of course, the number of the first limiting grooves 220a and the second limiting grooves 11b can both be one, or other numbers.

[0106] Reference Figures 1 - 14 , as an example of this embodiment, the conductive component 3 further includes a conductive mounting portion 3b and a conductive pressing cover portion 3c. Among them, an installation groove 30b for accommodating the conductive ring 3a is provided in the conductive mounting portion 3b. The notch of the installation groove 30b faces the outside of the tool body 1, and the front side of the conductive mounting portion 3b abuts against the side wall of the annular groove 10; the conductive pressing cover portion 3c is pressed on the rear side of the conductive mounting portion 3b and is fixedly connected to the bottom of the annular groove 10. In this embodiment, since the second convex portion 22a sleeves the first convex portion 1a to form the mounting portion 4, the conductive pressing cover portion 3c is fixedly connected to the second convex portion 22a.

[0107] The conductive mounting portion 3b is made of an insulating material so that the conductive ring 3a can be accommodated by the conductive mounting portion 3b. In the axial direction of the tool body 1, the front side of the conductive mounting portion 3b abuts tightly against the annular groove 10 on the side wall of the transducer housing 2a, that is, the rear end surface of the housing portion 21a. And, the conductive pressing cover portion 3c is pressed on the rear side of the conductive mounting portion 3b, so that the conductive component 3 is fixed in the axial position of the tool body 1.

[0108] It can be understood that a plurality of installation grooves 30b can be provided in the conductive mounting portion 3b. The plurality of installation grooves 30b are arranged in sequence in the axial direction of the tool body 1, and each installation groove 30b surrounds the connection portion of the second convex portion 22a and the first convex portion 1a and has a notch facing the outside of the tool body 1. Correspondingly, the number of the conductive rings 3a can also be multiple, and the multiple conductive rings 3a are installed in one-to-one correspondence with the multiple installation grooves 30b. The number of the conductive rings 3a and the installation grooves 30b can be adjusted according to the requirements of electrical transmission, so that the conductive rings 3a can meet the power consumption requirements of the transducer 2b. Generally speaking, the number of the conductive rings 3a will be set to two, including a rear conductive body 30a and a front conductive body 31a. The rear conductive body 30a and the front conductive body 31a are installed at intervals in the installation groove 30b, so as to facilitate the conduction of the positive electrode and the negative electrode of the transducer 2b through the rear conductive body 30a and the front conductive body 31a respectively.

[0109] It is considered that the conductive ring 3a is built into the annular groove 10 and recessed in the body portion 1b of the tool body 1 and the housing portion 21a of the transducer housing 2a. If the lead wire between the conductive ring 3a and the transducer 2b is arranged outside the transducer housing 2a and enters the inner cavity 20a along the radial direction of the transducer housing 2a, undoubtedly, the length of the lead wire will be too long, and it is easy for the lead wire to interfere with other structures, such as the fixing component 5, resulting in difficulty in installing the fixing component 5. Therefore, the conductive ring 3a can be electrically connected to the transducer 2b axially of the tool body 1.

[0110] Reference Figures 1 - 14 , as an example of this embodiment, the conductive component 3 further includes a conductive portion. The conductive portion can be axially inserted into the transducer housing 2a of the tool body 1, and the conductive portion can be electrically connected to the conductive ring 3a and the transducer 2b to achieve electrical connection between the conductive ring 3a and the transducer 2b. The conductive portion can be integrally or partially detachably connected to the transducer housing 2a. In this way, when the conductive component 3 is disassembled from the mounting portion 4, the conductive portion can move integrally or partially together with the conductive ring 3a, so as to realize disassembly from the transducer housing 2a, enabling the conductive ring 3a to move synchronously with the conductive portion, and enabling the conductive ring 3a to achieve the plug-and-play plugging function.

[0111] In order to enable the conductive portion to be integrally or partially detachably connected to the transducer housing 2a, the conductive portion can adopt an integral structure or a split structure. Reference Figures 1 - 14 , taking the conductive portion adopting a split structure as an example for illustration. Specifically, the conductive portion can include a plurality of conductive connectors 3d electrically connected to the transducer 2c and conductive members 3e corresponding to the number of conductive connectors.

[0112] The conductive connectors 3d are arranged axially of the tool body 1 on the front side of the conductive members 3e and are disposed in the housing portion 21a of the transducer housing 2a. And in the axial direction of the tool body 1, one end of the conductive portion is electrically connected to the inner side of the conductive ring 3a, and the other end is electrically connected to the transducer 2b. In this way, it can be avoided that the conductive circuit between the conductive ring 3a and the transducer 2b is externally disposed in the cavity 5a and interferes with the fixing component 5, and the layout path of the conductive circuit between the conductive ring 3a and the transducer 2b can be shortened, and the electrical connection between the conductive ring 3a and the transducer 2b is more stable.

[0113] In order to facilitate the electrical connection between the conductive connectors 3d and the transducer 2b, an installation channel 210a penetrating through to the inner cavity 20a can be provided in the housing portion 21a of the transducer housing 2a, and the conductive connectors 3d are integrally or partially detachably connected in the installation channel 210a, so that the conductive component 3 can be axially disassembled and connected to the transducer housing 2a along the tool body 1.

[0114] Each conductive member 3e may adopt a columnar structure, be installed on the conductive mounting portion 3b, and be in electrical contact connection with the corresponding conductive connecting member 3d. Moreover, the conductive member 3e is axially installed in the conductive mounting portion 3b along the tool body 1, is located inside the conductive ring 3a, and is electrically connected to the conductive ring 3a. Generally speaking, the conductive connecting member 3d and the conductive member 3e are at least adapted to the number of conductors. When the conductive ring 3a has a rear conductor 30a and a front conductor 31a, some of the conductive members 3e are electrically connected to the rear conductor 30a, and the remaining conductive members 3e are electrically connected to the front conductor 31a, so that the rear conductor 30a and the front conductor 31a respectively conduct the positive and negative electrodes of the transducer 2b.

[0115] It can be understood that when the number of conductive rings 3a is multiple, the number of conductive members 3e can also be increased accordingly, and each conductive member 3e can be electrically connected to the conductive ring 3a in a one-to-one correspondence. Taking the conductive ring 3a including a rear conductor 30a and a front conductor 31a as an example, two conductive members 3e can be respectively electrically connected to two conductive rings 3a, that is, one conductive member 3e is only electrically connected to one conductive ring 3a, and the other conductive member 3e is only electrically connected to another conductive ring 3a, so that some of the conductive members 3e are electrically connected to the rear conductor 30a, and the remaining conductive members 3e are electrically connected to the front conductor 31a, realizing the distribution of the positive and negative electrodes in the connection circuit. Of course, if only one conductive ring 3a is provided in the conductive assembly 3, a partition structure needs to be provided inside the conductive ring 3a so that a single conductive ring 3a can conduct the positive and negative electrodes. At this time, the conductive mounting portion 3b only needs to be provided with one mounting groove 30b for mounting the conductive ring 3a.

[0116] It can be understood that the structure of the conductive connecting member 3d is diverse. It can be an integral structure or a detachable structure, as long as the conductive connecting member 3d can be inserted into the installation channel 210a to electrically connect the conductive ring 3a and the transducer 2b. For example, the conductive connecting member 3d may include an insulating mounting seat 30d and a conductive matching member 31d placed inside the insulating mounting seat 30d, and the conductive matching member 31d is electrically connected to the transducer 2b. The insulating mounting seat 30d is arranged in the installation channel 210a so that the conductive matching member 31d is fixed on the transducer housing 2a, while the conductive member 3e is installed on the conductive mounting portion 3b and fixed inside the conductive assembly 3. In this way, when the conductive ring 3a is sleeved on the mounting portion 4, the conductive member 3e can contact the conductive matching member 31d, so that the conductive ring 3a is conducted with the transducer 2b. When the conductive ring 3a is removed from the mounting portion 4, the conductive member 3e is disconnected from the conductive matching member 31d, so that the conductive ring 3a is disconnected from the transducer 2b, thereby realizing the plug-in assembly of the conductive ring 3a and the transducer 2b.

[0117] In a specific application, the conductive member 3e can be a socket or a plug. Correspondingly, the conductive mating member 31d is the corresponding plug or socket. The electrical connection between each conductive member 3e and the corresponding conductive mating member 31d is formed by the insertion and contact of the plug and the socket. When the conductive ring 3a has a rear conductive body 30a and a front conductive body 31a, specifically, on the side of the transducer housing 2a, an insulating mounting seat 30d is provided in the installation channel 210a. The conductive mating members 31d are respectively mounted in the insulating mounting seat 30d and are electrically connected to the transducer 2b through wires. Among them, one conductive mating member 31d is connected to the positive electrode plate of the transducer 2b, and the other conductive mating member 31d is connected to the negative electrode plate of the transducer 2b. Thus, when the conductive assembly 3 is sleeved on the installation part, the conductive member 3e can be inserted into the conductive mating member 31d, making the conductive ring 3a conduct with the transducer 2b, thereby ensuring that the conductive assembly 3 and the transducer 2b achieve quick-change electrical connection. Moreover, when the conductive assembly 3 is detached from the installation part, the conductive mating member 31d is separated from the conductive member 3e, enabling a part of the conductive part to be detachably connected in the installation channel 210a and enabling the conductive assembly 3 to be connected to the transducer 2b in a plug-in connection manner, so that the entire conductive assembly 3 is convenient for disassembly and replacement.

[0118] Reference Figure 13 , in other examples, the conductive connecting member 3d can also adopt a cooperative structure of an insulating mounting seat 30d and an elastic conductive sheet 32d, which includes an insulating mounting seat 30d and an elastic conductive sheet 32d. The conductive member 3e is electrically connected to the conductive ring 3a, and the elastic conductive sheet 32d is electrically connected to the transducer 2b. The conductive member 3e contacts the elastic conductive sheet 32d to form an electrical connection. In this way, the conductive assembly 3 can also make the conductive ring 3a conductively communicate with the transducer 2b axially of the tool body 1.

[0119] Reference Figures 2 - 4 , as an example of this embodiment, the front end face of the conductive installation part 3b is provided with accommodation grooves 31b corresponding to the number of conductive members 3e. The front ends of the conductive members 3e are arranged in the accommodation grooves 31b, and the rear end faces of the insulating mounting seats 30d extend into the corresponding accommodation grooves 31b, so that when the conductive ring 3a is sleeved on the installation part 4, the conductive member 3e and the conductive mating member 31d or the elastic conductive sheet 32d can be quickly positioned and connected in a matching manner.

[0120] When the ultrasonic tool handle 100 works, the conductive ring 3a will contact the brush, generating heat by friction. Therefore, after the ultrasonic tool handle 100 works for a long time, a large amount of heat energy and dust will be generated on the conductive ring 3a, affecting the service life of the conductive ring 3a. By providing a cooling air path in the ultrasonic tool handle 100 to cool the conductive ring 3a and the transducer 2c and remove the dust generated during the operation of the conductive ring 3a, the service life of the conductive ring 3a and the transducer 2c can be extended.

[0121] Reference Figures 1 - 19 As an example of this embodiment, the ultrasonic tool handle 100 further includes a conductive component cooling branch 15 for cooling the conductive component 3 and a transducer cooling branch 14 for cooling the transducer 2c. The inner cavity 20a communicates with its external space to form the transducer cooling branch 14, and the cavity 5a communicates with its external space to form the conductive component cooling branch 15. The external space here mainly refers to the external environment to discharge the gas in the cooling branch. The fixing component 5 is provided with an air inlet channel 16a communicating with an external cooling air source. The air inlet channel 16a communicates with the transducer cooling branch 14 and the conductive component cooling branch 15 respectively, so that the air flow of the external cooling air source can flow through the air inlet channel 16a to the cavity 5a and the inner cavity 20a. Among them, the transducer cooling branch 14 communicates with the transducer assembly and can allow the air flow to enter the inside of the inner cavity 20a from the outside of the inner cavity 20a to cool the transducer 2c; the conductive component cooling branch 15 communicates with the conductive component 3 and can allow the air flow to flow to the outer peripheral side of the conductive ring 3a to cool the conductive ring 3a. Of course, according to the application scenario of the ultrasonic tool handle 100, the transducer cooling branch 14 and the conductive component cooling branch 15 can be selectively applied, or both can be used at the same time.

[0122] The fixing component 5 may further include an airway pressing ring member 16 to enable the air flow to enter the transducer cooling branch 14 and the conductive component cooling branch 15 respectively. Specifically, the airway pressing ring member 16 is disposed on the outer peripheral side of the conductive ring 3a and approaches the transducer housing 2b, so that a split air path 17 is formed between the airway pressing ring member 16 and the transducer housing 2b. And the split air path 17 is configured to be able to introduce external air and make the introduced air enter the transducer cooling branch 14 and the conductive component cooling branch 15 respectively. Specifically, the other end of the split air path 17 is connected in parallel with the conductive component cooling branch 15 and the transducer cooling branch 14, so that the air flow can enter the transducer cooling branch 14 and the conductive component cooling branch 15 respectively.

[0123] It can be understood that the path design of the transducer cooling branch 14 and the conductive component cooling branch 15 is not unique, as long as it is ensured that the air flow flowing inside the transducer cooling branch 14 can cool the transducer 2c and the air flow flowing inside the conductive component cooling branch 15 can cool the conductive ring 3a. As an example of this embodiment, the transducer cooling branch 14 can adopt the following design:

[0124] A gap is formed between the first bearing 8 and the transducer housing 2b. Inside the transducer housing 2b, there are arranged a first transducer branch 14a along the axial direction of the tool body 1, a second transducer branch 14b along the radial direction of the tool body 1, a third transducer branch 14c and a fourth transducer branch 14d that communicate with the inner cavity 20a. The first transducer branch 14a, the second transducer branch 14b, the gap, the third transducer branch 14c, the inner cavity 20a and the fourth transducer branch 14d are connected in sequence to form a transducer cooling branch 14, where

[0125] The first transducer branch 14a is arranged at the rear end of the transducer housing 2b and is connected to the air inlet passage 16a through a shunt air path 17; one end of the second transducer branch 14b is connected to the first transducer branch 14a, and the other end is connected to the gap between the transducer housing 2b and the first bearing 8 serving as a bearing component; one end of the third transducer branch 14c is connected to the gap between the transducer housing 2b and the first bearing 8, and the other end is connected to the inner cavity 20a; one end of the fourth transducer branch 14d is connected to the inner cavity 20a, and the other end is connected to the outside.

[0126] Specifically, as an example of this embodiment, the transducer assembly further includes a horn 33 fixedly connected to the transducer 2c. The flange portion 301a of the horn 33 is connected to the inner side wall of the transducer housing 2b, and a second through hole 300a is formed in the flange portion 301a. The second through hole 300a communicates the inner cavity 20a with the external environment to form the fourth transducer branch 14d.

[0127] Moreover, a transducer spiral air path 18 extending along the axial direction of the tool body 1 can be arranged on the outer peripheral side of the transducer housing 2b to form a gap between the transducer housing 2b and the first bearing 8 and extend the flow distance of the air flow between the transducer housing 2b and the first bearing 8. The transducer spiral air path 18 communicates the second transducer branch 14b with the third transducer branch 14c, so that after the air flow flows out from the second transducer branch 14b, it can flow along the spiral path defined by the transducer spiral air path 18 to cool the first bearing 8.

[0128] It can be understood that since the shunt air path 17 formed by the airway pressure ring member 16 communicates with the cavity 5a to cool the conductive ring 3a. In order to ensure that the cooling air flow can blow towards the conductive ring 3a, the airway pressure ring member 16 will approach one end of the conductive assembly 3. In this way, the airway pressure ring member 16 will also approach the side wall of the annular groove 10. Therefore, the brush fixing bracket 6 can also be installed on the airway pressure ring member 16, so that the brush installed on the brush fixing bracket 6 can be in sliding connection with the conductive ring 3a to achieve conduction. As an example of this embodiment, the airway pressure ring member 16 is used as a part of the fixing assembly 5 and is installed on the bearing press-fitting portion 9.

[0129] ReferenceFigures 1 - 19 As an example of this embodiment, the cavity 5a where the conductive ring 3a is located constitutes the cooling branch 15 of the conductive component. After the air flow enters the cavity 5a from the shunt air path 17, it can cool the conductive ring 3a. Moreover, an upper air path 15a is formed between the tool body 1 and the fixing component 5. The upper air path 15a can communicate the outside with the inside of the fixing component 5, that is, the cavity 5a, and is connected to the cooling branch 15 of the conductive component.

[0130] In this way, after the air flow flows in from the shunt air path 17, it can enter the cavity 5a and the first transducer branch 14a respectively, and then flow to the conductive ring 3a and the transducer 2c to cool the conductive ring 3a and the transducer 2c respectively. Moreover, the air flow entering the cavity 5a can take out the dust generated during the operation of the conductive ring 3a from the upper air path 15a, ensure the stability of the electrical connection between the conductive ring 3a and the brush, and extend the service life of the conductive component 3.

[0131] Specifically, the upper cover body 5b extends radially along the tool body 1 into the front side of the tool body 1. A flange 10c extending forward is provided on the outer side wall of the tool body 1. Moreover, an upper groove 50b surrounding the tool body 1 is provided on the upper cover body 5b. The flange 10c extends into the upper groove 50b to form the upper air path 15a, and the cavity 5a is communicated with the external environment through the upper air path 15a.

[0132] Through the mutual cooperation of the flange 10c of the tool body 1 and the upper groove 50b of the upper cover body 5b, the upper air path 15a can form a passage with a U-shaped path trajectory, so that the upper air path 15a can form a labyrinth seal to prevent external dust and the like from entering the cavity 5a where the conductive ring 3a and the brush are located and affecting their electrical connection.

[0133] The ultrasonic tool handle 100 adopts a parallel air path design, so that after the external air flow enters from the air inlet channel 16a, it can be shunted to the transducer cooling branch 14 and the conductive component cooling branch 15 to cool the transducer 2c and the conductive component 3 synchronously. In the cooling air path of the ultrasonic tool handle 100, the air inlet channel 16a undertakes the function of connecting the external cooling air source and obtaining the cooling air flow. The air inlet channel 16a can be a normally open air path or an air path provided with an opening and closing structure.

[0134] Reference Figures 1 - 19, as an example of this embodiment, the fixed component 5 is provided with a first channel 161a and a lateral channel 162a, and a first through hole 160a is provided on the side wall of the outer housing 5c. The first channel 161a is communicated with an external cooling air source. A shunt air path 17 is formed between the inner ring side of the air duct retaining ring member 16 and the transducer housing 2b. A retaining ring air path 16b communicated with the shunt air path 17 is provided on the outer ring side of the air duct retaining ring member 16. The lateral channel 162a is communicated with the retaining ring air path 16b through the first through hole 160a, and the first channel 161a, the lateral channel 162a, the first through hole 160a and the retaining ring air path 16b are communicated in sequence to form an intake air channel 16a. At this time, the first channel 161a and the lateral channel 162a are located outside the outer housing 5c and can be communicated with an external cooling air source. Of course, the upper cover 5b and the receiving seat 5e can also be an integral structure. At this time, the first channel 161a and the lateral channel 162a are provided on the upper cover 5b or the receiving seat 5e. Figure 20 and 23 shows the integral molding of the upper cover 5b and the receiving seat 5e.

[0135] To introduce the air flow into the shunt air path 17, refer to Figures 1 - 19 , as an example of this embodiment, a hollow guiding air nozzle 19 is provided on the fixed component 5. One end of the guiding air nozzle 19 extends into the intake air channel 16a, and the guiding air nozzle 19 can move along the axial direction of the tool body 1 in the intake air channel 16a. The other end of the guiding air nozzle 19 can be communicated with an external cooling air source to supply cooling air flow to the intake air channel 16a.

[0136] Specifically, an air nozzle elastic member 20 is provided between the guiding air nozzle 19 and the fixed component 5. One end of the air nozzle elastic member 20 is connected to the intake air channel 16a, and the other end extends into the guiding air nozzle 19, so that the guiding air nozzle 19 can move relative to the fixed component 5 along the axial direction of the tool body 1. Moreover, the guiding air nozzle 19 is communicated with the shunt air path 17 and is communicated with the outside of the fixed component 5 to form a cooling air intake combined path, so that when the ultrasonic tool handle 100 is assembled in place, the guiding air nozzle 19 is abutted against the supply end of the external cooling air source under the elastic force of the air nozzle elastic member 20, so that the cooling air flow of the external cooling air source can enter the intake air channel 16a through the guiding air nozzle 19.

[0137] Combined with the aforementioned transducer cooling branch 14 and the conductive component cooling branch 15, the ultrasonic tool handle 100 of this embodiment can realize the following flow path and make the air flow flow along the flow path:

[0138] The airway pressure ring member 16 is of a ring structure and is arranged around the tool body 1, such that a split air path 17 is formed between the airway pressure ring member 16 and the transducer housing 2b. The split air path 17 is also of a ring structure and is arranged around the tool body 1. An air inlet passage 16a communicating with the split air path 17 is further arranged inside the airway pressure ring member 16, and the air inlet passage 16a is simultaneously communicated with the guide air nozzle 19. Among them, the bearing gland 7 is used to define the axial direction of the first bearing 8. It is installed at the rear end of the housing portion 21a, and its rear end face is flush with the rear end face of the housing portion 21a. Therefore, the split air path 17 is also the air path between the airway pressure ring member 16 and the bearing gland 7.

[0139] After the gas flows out from the guide air nozzle 19, it enters the split air path 17 through the air inlet passage 16a. Then, inside the split air path 17, it is divided into two paths:

[0140] One path enters the transducer cooling branch 14. Specifically, it sequentially passes through the first transducer branch 14a, the second transducer branch 14b, the transducer spiral air path 18, and the third transducer branch 14c, and enters the inner cavity 20a of the transducer housing 2b to cool the transducer 2c, so as to extend the service life of the transducer 2c. Finally, the gas flows along the fourth transducer branch 14d, that is, it is discharged from the second through hole 300a provided in the flange portion 301a.

[0141] The other path enters the conductive component cooling branch 15. Specifically, it enters the cavity 5a of the fixing component 5 through the cooling gap between the airway pressure ring member 16 and the conductive mounting portion 3b, thereby cooling the conductive ring 3a. Then, it enters the gap between the upper cover body 5b and the conductive gland portion 3c, and finally is discharged from along the upper air path 15a, that is, the gap between the tool body 1 and the upper cover body 5b, so as to blow out the dust generated by the abrasion of the conductive ring 3a and the carbon brush, ensure the stability of the electrical connection, and extend the service life of the conductive component 3.

[0142] When the ultrasonic tool handle 100 is working, generally, an electrical signal is input through the transmitting seat 24, and the electrical signal is conducted to the transducer 2c through the conductive component 3. Since the tool body 1 can rotate relative to the fixing component 5, after the tool body 1 is separated from the main shaft, relative rotation will occur between the tool body 1 and the fixing component 5 and the conductive component 3. At this time, the power-consuming side contact 26 (i.e., the receiving portion) provided on the end face of the fixing component 5 may deviate from the current position, such that when the ultrasonic tool handle 100 is connected to the main shaft again, the power-consuming side contact 26 of the fixing component 5 will not directly contact the power supply side contact 25 (i.e., the power supply portion) of the transmitting seat 24. In this way, the transmitting seat 24 will be unable to transmit the electrical signal to the conductive component 3. In view of this situation, a positioning component 21 can be provided on the ultrasonic tool handle 100 to limit the relative rotation between the tool body 1 and the fixing component 5 when the tool body 1 is separated from the main shaft.

[0143] Refer to Figures 1 - 14 、Figures 20 - 25 As an example of this embodiment, the ultrasonic tool handle 100 further includes a positioning component 21. The positioning component 21 is disposed on the outer peripheral side of the tool body 1 and arranged on the upper cover body 5b. A positioning groove 22 is arranged on the tool body 1 along the circumferential direction of the tool body 1. Moreover, the positioning component 21 is configured to be able to move towards the tool body 1 and extend into the positioning groove 22, so that the tool body 1 is relatively stationary with respect to the fixing component 5, and is also able to move away from the tool body 1 to disengage from the positioning groove 22, such that the tool body 1 and the fixing component 5 can rotate relative to each other.

[0144] A positioning groove 51b is provided on the upper end surface of the upper cover body 5b, and the positioning groove 51b communicates with the positioning groove 22. The positioning component 21 is disposed in the positioning groove 51b. In some implementation examples, the positioning component 21 and the power supply side contact 26 are located on the same side of the tool body 1, which is convenient for the structural layout of the ultrasonic tool handle 100. Specifically, when the ultrasonic tool handle is installed on the spindle, the emitter seat on the spindle side can act on the positioning component.

[0145] Specifically, the positioning component 21 includes a slider group and a top block 21c. Among them, the slider group includes an upper slider 21e and a lower slider 21b arranged in sequence along the circumferential direction of the tool body 1. Among them,

[0146] the upper slider 21e can reciprocate along the axial direction of the tool body 1, and a first inclined surface 210e is provided on the side of the upper slider 21e facing away from the tool body 1. The first inclined surface 210e inclines towards the tool body 1 from top to bottom, that is, from the rear side to the front side.

[0147] the lower slider 21b can reciprocate close to or away from the tool body 1, and the lower slider 21b is connected to the top block 21c. Moreover, a second inclined surface 210b is provided on the side of the lower slider 21b facing the tool body 1. The second inclined surface 210b inclines towards the tool body 1 from top to bottom, such that the first inclined surface 210e and the second inclined surface 210b are in contact with each other and can slide relative to each other, causing the upper slider 21e to move forward, squeeze the lower slider 21b and enable the lower slider 21b to move away from the tool body 1, and further causing the top block 21c to disengage from the positioning groove 22. When the upper slider 21e moves towards the rear side, the lower slider 21b loses the axial extrusion force from the tool body 1, the lower slider 21b no longer has the tendency to move away from the tool body 1, and the lower slider 21b is provided with the precondition to move close to the tool body 1.

[0148] The lower sliding block 21b is provided with a clamping groove 211b, and the top block 21c is embedded in the clamping groove 211b, so that the top block 21c moves synchronously with the lower sliding block 21b. That is, the top block 21c is connected to the lower sliding block 21b and can move synchronously with the lower sliding block 21b. Moreover, the side surface of the upper sliding block 21e facing the tool body 1 is provided with a lower notch 212e, and the lower sliding block 21b passes through the lower notch 212e and extends toward the side where the tool body 1 is located to achieve connection with the top block 21c. Also, the upper sliding block 21e and the lower sliding block 21b can form a constraint fit in the axial direction of the tool body 1 by means of the lower notch 212e, so that the upper sliding block 21e and the lower sliding block 21b will not disengage during the relative movement. Moreover, it can avoid interference between the lower sliding block 21b and the upper sliding block 21e when the lower sliding block 21b moves toward the tool body.

[0149] The top block 21c is arranged to be able to reciprocally approach or move away from the tool body 1, so that the top block 21c extends into the positioning groove 22 or the top block 21c disengages from the positioning groove 22. Specifically, the positioning assembly 21 further includes a positioning elastic member 23. The top block 21c abuts against the positioning elastic member 23, and the positioning elastic member 23 is arranged to be able to squeeze the top block 21c and apply a force to the top block 21c to move toward the tool body 1, so that the top block 21c extends into the positioning groove 22. Since the top block 21c moves synchronously with the lower sliding block 21b, the lower sliding block 21b can drive the upper sliding block 21e to rise.

[0150] Through the foregoing positioning assembly 21, when the ultrasonic tool handle 100 is connected to the spindle, the upper sliding block 21e can be squeezed, so that the upper sliding block 21e moves forward, and the lower sliding block 21b cooperates with the top block 21c to move toward the side away from the tool body 1, thereby causing the top block 21c to withdraw from the positioning groove 22 of the tool body 1. When the ultrasonic tool handle 100 is disengaged from the spindle, the upper sliding block 21e loses the extrusion force, and the positioning elastic member 23 squeezes the top block 21c and applies a force to the top block 21c to move toward the tool body 1. Under the action of the positioning elastic member 23, the top block 21c extends into the positioning groove 22 and drives the lower sliding block 21b to move toward the side close to the tool body 1. In this way, the upper sliding block 21e moves backward under the action of the first inclined surface 210e and the second inclined surface 210b and protrudes from the upper cover body 5b, so that when the ultrasonic tool handle 100 is connected to the spindle next time, the upper sliding block 21e can be squeezed again, so that the positioning assembly 21 performs the foregoing actions again, causing the top block 21c to withdraw from the positioning groove 22 of the tool body 1.

[0151] It can be understood that the structural design of the top block 21c is diverse. The top block 21c only needs to be able to be driven by the lower sliding block 21b to extend into the positioning groove 22, and can be driven by the positioning elastic member 23 to disengage from the positioning groove 22. Refer to Figures 1 - 14 、 Figures 20 - 25, as an example of this embodiment, the top block 21c may include a first guiding section 210c and a second guiding section 211c, and the first guiding section 210c and the second guiding section 211c are arranged at an angle; moreover, the first guiding section 210c is located on the side of the second guiding section 211c close to the tool body 1, so that one end of the first guiding section 210c can extend into the positioning groove 22, and the other end is connected to the second guiding section 211c, and the second guiding section 211c is connected to the slider group. In this way, when the lower slider 21b moves, the first guiding section 210c of the top block 21c can reciprocate in and out of the positioning groove 22, correspondingly enabling the tool body 1 to be relatively stationary with respect to the fixing component 5 and the tool body 1 to be relatively rotatable with respect to the fixing component 5.

[0152] In addition, in order to enable the top block 21c to move smoothly, there may be two sets of both the slider group and the positioning elastic member 23, and they are both located on the side of the second guiding section 211c away from the tool body 1. Each slider group is respectively connected to both ends of the second guiding section 211c, and the positioning elastic members 23 are arranged at intervals between the two slider groups and are both connected to the second guiding section 211c. Moreover, the first guiding section 210c is perpendicular to the second guiding section 211c, and the first guiding section 210c is arranged along the radial direction of the tool body 1. In this way, when the slider group moves or the positioning elastic member 23 moves, a radial force on the tool body 1 can be applied to the top block 21c, and this force is distributed on both sides of the first guiding section 210c, enabling the top block 21c to smoothly move in and out of the positioning groove 22.

[0153] It can be understood that the number of the positioning grooves 22 can be multiple. In this way, when the tool body 1 is adjusted at the initial position, the relative position between the tool body 1 and the fixing component 5 can be calibrated by using the positions determined by the multiple positioning grooves 22, so that after the top block 21c extends into the positioning groove 22 to lock the position of the tool body 1, the power-consuming side contact 26 arranged on the end face of the fixing component 5 can maintain a corresponding position with the power supply side contact 25.

[0154] When the ultrasonic tool handle 100 is disengaged from the spindle, the upper slider 21e should protrude from the fixing component 5 and extend outside the upper cover body 5b, so that when the ultrasonic tool handle 100 is connected to the spindle, the upper slider 21e can be easily squeezed and move forward. In order to limit the stroke of the upper slider 21e in the axial direction of the tool body 1 and prevent the upper slider 21e from coming out, refer to Figure 1, as an example of this embodiment, the positioning component 21 further includes a slider cover 21d located above the positioning groove 51b. The slider cover 21d is disposed on the moving path of the upper slider 21e to limit the upward stroke of the upper slider 21e, that is, the displacement of the positioning component 21 in the axial direction of the tool body 1. Specifically, a guiding hole 210d is provided on the slider cover 21d. The guiding hole 210d penetrates the slider cover 21d along the axial direction of the tool body 1. Moreover, the upper slider 21e is provided with a guiding portion 211e extending along the axial direction of the tool body 1. The guiding portion 211e extends into the guiding hole 210d to guide the moving direction of the upper slider 21e. Also, the slider cover 21d can cover other parts of the positioning groove to define the lower slider and the top block and prevent them from disengaging from the positioning groove.

[0155] After the upper slider 21e moves a certain distance axially rearward along the tool body 1, it will abut against the slider cover 21d and cannot disengage from the slider cover 21d. Of course, the stroke limited by the slider cover 21d should be able to satisfy the disengagement of the top block 21c from the positioning groove 22.

[0156] Based on the foregoing ultrasonic tool shank 100, this embodiment further provides an ultrasonic machining device 200, including the foregoing ultrasonic tool shank 100. Moreover, it further includes a transmitter base 24. A power supply side contact 25 (i.e., a power supply side connection end) is installed on the transmitter base 24, and a power consumption side contact 26 (i.e., a power consumption side connection end) is installed on the upper cover 5b of the ultrasonic tool shank 100. The power supply side contact 25 is in surface contact with the power consumption side contact 26 to form an electrical connection, and the power consumption side contact 26 is electrically connected to the conductive component 3. Compared with point contact, the surface contact between the power supply side contact 25 and the power consumption side contact 26 can obtain a better electrical connection effect. And by installing the positioning component 21 at the position where the power consumption side contact 26 is located, that is, the upper cover 5b, the positioning component 21 can lock the relative position between the upper cover 5b and the tool body 1 to ensure the connection between the power consumption side contact 26 and the power supply side contact 25.

[0157] Reference Figures 1 - 25 , a second channel 27 with a stepped portion 27a is provided on the transmitter base 24. The second channel 27 is communicated with the air inlet channel 16a. The second channel 27 can be communicated with an external cooling air source to supply a cooling air flow to the air inlet channel 16a. And one end of the guiding air nozzle 19 extends into the air inlet channel 16a, and the other end of the guiding air nozzle 19 can extend into the second channel 27 to communicate the air inlet channel 16a with the second channel 27. When the transmitter base 24 is connected to the ultrasonic tool shank 100, the guiding air nozzle 19 can communicate the second channel 27 with the air inlet channel 16a to allow the cooling air flow conveyed by the external cooling air source to enter the air inlet channel 16a.

[0158] A gas core 28 is provided in the second channel 27. The gas core 28 passes through the stepped portion 27a, and a gas core elastic member 29 is provided between the gas core 28 and the stepped portion 27a, enabling the gas core 28 to move axially along the tool body 1. When the gas core 28 moves towards the stepped portion 27a, the gas core 28 can compress the gas core elastic member 29, and the gas core elastic member 29 applies a force to the gas core 28 to move the gas core 28 away from the stepped portion 27a, causing it to press tightly against the guiding air nozzle 19.

[0159] A gas core air passage 28a penetrating through the rear end is provided in the gas core 28, and the gas core air passage 28a communicates with the second channel 27. Moreover, an air inlet hole 28b is provided on the side wall of the gas core 28 near its rear end. The air inlet hole 28b communicates with the gas core air passage 28a and can communicate with the second channel 27. Axially along the tool body 1, a sealing groove 28c is further provided at the rear side of the air inlet hole 28b, and a sealing ring 13 can be filled in the sealing groove 28c. Under the action of the gas core elastic member 29, the gas core 28 can maintain a tendency to move away from the stepped portion 27a, pressing the sealing ring 13 installed in the sealing groove 28c against the stepped portion 27a, so that the sealing groove 28c is hermetically arranged with the rear end face of the stepped portion 27a through the sealing ring 13, closing the second channel 27, that is, not communicating with the air inlet hole 28b.

[0160] When the ultrasonic tool shank 100 is applied, the ultrasonic tool shank 100 is installed on the spindle. When the ultrasonic tool shank 100 is assembled in place, the power supply side contact 25 of the emitter seat 24 is connected to the power consumption side contact 26 of the upper cover body 5b, enabling an electrical signal to be accessed to the transducer 2c. At the same time, the gas core 28 provided in the emitter seat 24 can be pressed against the guiding air nozzle 19 under the elastic force drive of the gas core elastic member 29. The front end of the gas core 28 and the rear end of the guiding air nozzle 19 are pressed tightly against each other, enabling the gas core air passage 28a to communicate with the guiding air nozzle 19, so as to realize the communication between the gas core air passage 28a and the intake passage 16a. Moreover, based on the action of the air nozzle elastic member 20, the guiding air nozzle 19 can press the gas core 28, causing the gas core 28 to move towards the stepped portion 27a, so that the sealing ring 13 installed on the gas core 28 is separated from the stepped portion 27a, and the air inlet hole 28b of the gas core 28 communicates with the outside. In this way, external air can enter the gas core air passage 28a from the air inlet hole 28b, and enter the shunt air path 17 through the guiding air nozzle 19 and the intake passage 16a.

[0161] When the ultrasonic tool shank 100 is detached from the spindle, the gas core 28 moves away from the guiding air nozzle 19. In this way, the gas core 28 can move towards the side away from the stepped portion 27a under the action of the gas core elastic member 29, pressing the sealing ring 13 installed in the sealing groove 28c against the stepped portion 27a to close the second channel 27.

[0162] Based on the foregoing ultrasonic machining device 200, this embodiment further provides a machine tool, which includes a machine tool body, a spindle disposed on the machine tool body, and the above-mentioned ultrasonic machining device 200. The transmitting seat 24 is installed on the spindle.

[0163] In summary, in the embodiment of the present utility model, an ultrasonic tool shank 100 forms an installation portion 4 through a detachably connected tool body 1 and a transducer housing 2a, enabling the conductive component 3 to be sleeved on the installation portion 4, such that the conductive ring 3a can adopt an integral structure. Moreover, the outer diameter of the conductive ring 3a in the radial direction of the tool body 1 is less than or equal to the outer diameter of the transducer housing 2a adjacent to the installation portion 4. By reducing the outer diameter of the conductive ring 3a, the linear velocity of the conductive ring 3a is reduced, the heat generation of the conductive ring 3a is decreased, so as to improve the service life of the conductive component 3, and solve the problems that the linear velocity of the conductive wire of the existing ultrasonic tool shank is high, the heat generation is serious, and it is difficult for the ultrasonic tool shank to be applied to high-speed machining. And because the conductive component 3 is sleeved on the installation portion 4 formed by the connection of the tool body 1 and the transducer housing 2a, the change in the size of the conductive component 3 will not affect the specification size of the inner cavity 20a of the transducer housing 2a, that is, it will not affect the specification of the transducer 2c. Therefore, even if the size of the conductive ring 3a of the ultrasonic tool shank 100 of the present utility model is adjusted according to functional requirements, the power of the transducer 2c can be ensured not to be affected, and the normal operation of the ultrasonic tool shank 100 will not be affected.

[0164] Moreover, the ultrasonic tool shank 100 of this embodiment is provided with a transducer cooling branch 14 and a conductive component cooling branch 15, and the transducer 2c and the conductive component 3 are cooled by using the transducer cooling branch 14 and the conductive component cooling branch 15. Compared with the central cooling design adopted by the existing ultrasonic tool shank 100, the cooling air path structure of this ultrasonic tool shank 100 is simple, and it can also blow out the dust generated by the wear of the conductive ring 3a ring and the carbon brush, further reducing the heat generation of the conductive ring 3a. And the cooling air path of this ultrasonic tool shank 100 can effectively prevent the problem of component damage caused by the error in the cooperation between the transmitting seat 24 and the fixing component 5 through the design of adding a guiding air nozzle 19 and cooperating with an air nozzle elastic member 20.

[0165] In addition, the ultrasonic tool shank 100 of this embodiment can lock the current position of the tool body 1 by using the positioning component 21 when the spindle is disengaged from the tool body 1, so that the tool body 1 and the receiving portion can be relatively stationary. And when the ultrasonic tool shank is installed on the spindle, the tool body and the receiving seat can rotate relative to each other. This embodiment further provides an ultrasonic machining device 200 and a machine tool, and the ultrasonic machining device 200 and the machine tool apply the foregoing ultrasonic tool shank 100 and have the beneficial effects of the foregoing ultrasonic tool shank 100.

[0166] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. An ultrasonic tool handle, characterized in that, Comprising: A tool handle body, on which a positioning groove is provided; A fixing component, which is rotatably sleeved on the tool handle body; A receiving part, which is arranged on the fixing component, and the receiving part can receive an electrical signal and transmit the electrical signal to a transducer in the tool handle body; A positioning component, which is arranged on the fixing component; and, The positioning component is arranged to be able to move towards the tool handle body and extend into the positioning groove, so that the tool handle body and the fixing component are relatively stationary, and can move away from the tool handle body to escape from the positioning groove, so that the tool handle body and the fixing component can rotate relatively.

2. The ultrasonic tool handle according to claim 1, wherein, The positioning component includes a top block, and the top block is arranged to be able to reciprocally approach or move away from the tool handle body, so that the top block extends into the positioning groove or the top block escapes from the positioning groove.

3. The ultrasonic tool handle according to claim 2, wherein, The positioning component further includes a slider group fixedly connected to the top block. The slider group includes an upper slider and a lower slider arranged in sequence along the axial direction of the tool handle body. Among them, The upper slider can reciprocally move along the axial direction of the tool handle body, and a first inclined surface facing away from the tool handle body is provided on the upper slider, and the first inclined surface inclines towards the tool handle body side from top to bottom; The lower slider can reciprocally approach or move away from the tool handle body, and the lower slider is connected to the top block. Moreover, a second inclined surface facing the tool handle body is provided on the lower slider, and the second inclined surface inclines towards the tool handle body side from top to bottom. And, The first inclined surface and the second inclined surface are mutually attached and can produce relative sliding, so that the upper slider moves along the axial direction of the tool handle body towards the lower slider and can squeeze the lower slider, so that the lower slider moves away from the tool handle body, and the top block escapes from the positioning groove.

4. The ultrasonic tool handle according to claim 3, characterized in that, A clamping groove is provided on the lower slider, and the top block is embedded in the clamping groove, so that the top block and the lower slider move synchronously.

5. The ultrasonic tool handle according to claim 4, characterized in that, A lower notch is provided on the side surface of the upper slider facing the tool handle body, and the lower slider passes through the lower notch and is connected to the top block.

6. The ultrasonic tool handle according to claim 3, characterized in that, The fixing component includes an upper cover body; a positioning groove is provided on the upper end surface of the upper cover body, and the positioning groove can communicate with the positioning groove; the positioning component is arranged in the positioning groove.

7. The ultrasonic tool handle according to claim 6, wherein It further includes a slider cover body located above the positioning groove. The slider cover body is connected to the upper cover body to limit the axial displacement of the positioning component.

8. The ultrasonic tool handle according to claim 7, wherein, A guiding hole is provided on the slider cover body, and the guiding hole penetrates through the slider cover body along the axial direction of the tool handle body. And, The upper slider is provided with a guiding part extending along the axial direction of the tool handle body, and the guiding part extends into the guiding hole to guide the moving direction of the upper slider.

9. The ultrasonic tool handle according to claim 2, wherein, The positioning component further includes a positioning elastic member, the top block abuts against the positioning elastic member, and the positioning elastic member can apply a force to the top block to move towards the tool handle body, so that the top block extends into the positioning groove.

10. The ultrasonic tool handle according to claim 3, characterized in that, The top block includes a first guiding section and a second guiding section, and the first guiding section and the second guiding section are arranged at an angle; the first guiding section is located on the side of the second guiding section close to the tool holder body, one end of the first guiding section can extend into the positioning groove, the other end is connected to the second guiding section, and the second guiding section is connected to the slider group.

11. The ultrasonic tool shank according to claim 10, characterized in that, The positioning assembly further includes a positioning elastic member abutting against the top block. There are two sets of the slider group and the positioning elastic member, and both are located on the side of the second guiding section away from the tool holder body. Each slider group is respectively connected to both ends of the second guiding section. Each positioning elastic member is arranged at intervals between the two slider groups and is connected to the second guiding section.

12. The ultrasonic tool handle according to claim 10, wherein, The first guiding section and the second guiding section are perpendicularly arranged, and the first guiding section is arranged along the radial direction of the tool holder body.

13. The ultrasonic tool handle according to claim 1, wherein The positioning assembly and the receiving portion are located on the same side of the tool holder body.

14. An ultrasonic machining device, characterized in that, It includes the ultrasonic tool holder according to any one of claims 1-13 and a transmitting seat. A power supply portion capable of conducting with the receiving portion is installed on the transmitting seat. Moreover, the transmitting seat can squeeze the positioning assembly to make the positioning assembly away from the tool holder body and disengage from the positioning groove.

15. A machine tool, characterized in that, It includes a machine tool body, a main shaft arranged on the machine tool body, and the ultrasonic processing equipment according to claim 14. The transmitting seat is installed on the main shaft.

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