Ultrasonic knife handle, ultrasonic processing device, and machine tool

Abstract

This application relates to the field of machining technology, and discloses an ultrasonic tool holder, ultrasonic machining equipment, and machine tool. The ultrasonic tool holder includes: a tool body assembly with a mounting cavity at its front end, the mounting cavity being connected to the external environment to form a transducer cooling branch; a fixing assembly, which is sleeved on the tool body assembly via a bearing, and has a bearing cooling channel within the fixing assembly, which is also connected to the external environment to form a bearing cooling branch; a first air inlet channel is also defined within the fixing assembly, the first air inlet channel being connected to both the transducer cooling branch and the bearing cooling branch, and is suitable for connection to an external air source. By providing a first air inlet channel, a transducer cooling branch, and a bearing cooling branch within the ultrasonic tool holder, the cooling gas supplied by the external air source to the ultrasonic tool holder is diverted to the transducer cooling branch and the bearing cooling branch, thereby cooling the transducer and bearing and preventing overheating damage to the transducer and bearing.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to an ultrasonic tool holder, an ultrasonic machining device, and a machine tool. Background Technology

[0002] When manufacturing and processing parts, machine tools can use ultrasonic processing equipment to process part blanks. Specifically, the machine tool supplies power to the transducer installed in the ultrasonic tool holder of the ultrasonic processing equipment, causing the transducer to generate ultrasonic vibration, which drives the blade installed in the ultrasonic tool holder to vibrate, thereby cutting the part blank under high-frequency vibration.

[0003] In related technologies, existing ultrasonic tool holders are connected to the machine tool spindle, and the spindle drives the tool body assembly of the ultrasonic tool holder to rotate the cutting tool. To improve the machining accuracy of the machine tool, the tool body assembly and the fixed assembly of the ultrasonic tool holder are separated to ensure that the tool body assembly can work in a good dynamic balance. A bearing is installed between the tool body assembly and the fixed assembly to separate the tool body assembly from the fixed assembly and prevent the tool body assembly from contacting the fixed assembly. When the tool body assembly is driven by the spindle to rotate at high speed (for example, the tool body assembly speed is 20,000 rpm to 40,000 rpm), the tool body assembly drives the inner ring of the bearing to rotate at high speed relative to the outer ring, resulting in a large amount of heat generated by internal friction of the bearing.

[0004] Furthermore, the transducer is located inside the cutter body assembly. The transducer generates a lot of heat during operation. When too much heat accumulates at the bearing or transducer, the bearing or transducer temperature becomes too high, which can easily lead to overheating and damage. Utility Model Content

[0005] The purpose of this application is to dissipate the heat generated by the transducer and bearing during operation from the ultrasonic scalpel holder to the external environment, so as to prevent the transducer and bearing from overheating and being damaged.

[0006] To achieve the above objectives, this application provides an ultrasonic scalpel holder.

[0007] This application further provides an ultrasonic processing device.

[0008] This application further provides a machine tool.

[0009] The ultrasonic scalpel holder according to this application includes: a scalpel body assembly having a mounting cavity at its front end for mounting a transducer, the mounting cavity being connected to the external environment to form a transducer cooling branch; a fixing assembly being sleeved on the front end of the scalpel body assembly via a bearing, the fixing assembly having a bearing cooling channel surrounding the outer periphery of the bearing, and the bearing cooling channel being connected to the external environment to form a bearing cooling branch; the fixing assembly further defines a first air inlet channel, the first air inlet channel being connected to the transducer cooling branch and also connected to the bearing cooling branch, the first air inlet channel being adapted to be connected to an external air source.

[0010] According to the ultrasonic scalpel holder of this application, a first air inlet channel is provided in the fixing assembly of the ultrasonic scalpel holder, a transducer cooling branch is provided in the scalpel body assembly, and a bearing cooling branch is provided on the outer periphery of the bearing. After the external air source provides cooling gas to the first air inlet channel, the cooling gas is diverted to the transducer cooling branch and the bearing cooling branch. The cooling gas can exchange heat with the transducer and the bearing. After heat exchange, the cooling gas is discharged to the external environment, thereby conducting the heat generated by the transducer and the bearing during operation to the external environment. This can prevent the transducer and the bearing from accumulating too much heat and becoming too hot, thereby preventing the transducer and the bearing from overheating and being damaged, and improving the stability of the ultrasonic scalpel holder during long-term operation.

[0011] In some examples of this application, the fixing component includes a bearing cooling element and a housing. The bearing cooling element is disposed between the housing and the bearing. A guide groove is formed on the outer periphery of the bearing cooling element. The guide groove is spirally arranged on the outer side of the bearing cooling element in a back-to-back direction. The guide groove and the housing form the bearing cooling channel.

[0012] In some examples of this application, the ultrasonic scalpel handle further includes a flow guide fixedly sleeved on the scalpel body assembly. The flow guide includes a flange portion and an airflow turbine fixedly connected. A gap is provided between the flange portion and the fixed assembly, and the flange portion is spaced apart from the scalpel body assembly to form a communicating flow channel. The communicating flow channel communicates the first air inlet channel and the mounting cavity. The airflow turbine includes at least one blade, which is disposed in the communicating flow channel and extends radially toward the scalpel body assembly.

[0013] In some examples of this application, the blade assembly is provided with a connecting hole that connects the connecting channel and the mounting cavity, wherein the connecting hole is located away from the connection between the first air intake channel and the connecting channel.

[0014] In some examples of this application, the fixing component includes a housing and an outer casing assembly. The housing is sleeved on the front end of the blade assembly via a bearing, and the outer casing assembly is fixed to the rear end of the housing. The outer casing assembly defines the first air intake channel, and a bearing cooling channel is provided between the housing and the bearing.

[0015] In some examples of this application, the outer casing assembly includes a side shell and a cover plate. The side shell is fixedly connected to the outer casing, and the side shell defines a first air intake channel. The cover plate is disposed on the rear side of the side shell and has a first air inlet communicating with the first air intake channel. The first air inlet is adapted to be connected to an external air source.

[0016] In some examples of this application, the fixing component and the cutter body assembly are radially spaced apart to form a flow channel. The flow channel has an air inlet end and an air outlet end. The air inlet end is connected to the first air inlet channel, and the air outlet end is connected to the bearing cooling branch and the transducer cooling branch, respectively, so that the cooling airflow can enter the transducer cooling branch and the bearing cooling branch, respectively.

[0017] In some examples of this application, the cover plate is further provided with a second air inlet, and a second air intake channel communicating with the second air inlet is defined inside the side housing. The second air intake channel is spaced apart from the first air intake channel. An annular spray groove is formed at the front end of the outer housing, and a connecting bracket is provided at the front end of the outer housing. The connecting bracket seals the annular spray groove to form an annular spray channel, and an overflow channel is opened inside the outer housing. The second air intake channel communicates with the annular spray channel through the overflow channel. The second air inlet is adapted to be connected and cooperated with an external air source. The connecting bracket can be used to install a cooling nozzle communicating with the annular spray channel.

[0018] The ultrasonic processing equipment according to this application includes the ultrasonic tool holder described above.

[0019] According to the ultrasonic processing equipment of this application, the ultrasonic processing equipment is equipped with an ultrasonic tool holder. A first air inlet channel is provided in the fixing component of the ultrasonic tool holder, a transducer cooling branch is provided in the tool body component, and a bearing cooling branch is provided on the outer periphery of the bearing. After an external air source provides cooling gas to the first air inlet channel, the cooling gas is split to the transducer cooling branch and the bearing cooling branch. The cooling gas can exchange heat with the transducer and the bearing. After heat exchange, the cooling gas is discharged to the external environment, thereby conducting the heat generated by the transducer and the bearing during operation to the external environment. This can prevent the transducer and the bearing from accumulating too much heat and becoming too hot, thereby preventing the transducer and the bearing from overheating and being damaged, and improving the stability of the ultrasonic tool holder during long-term operation.

[0020] The machine tool according to this application includes: a machine tool body; a spindle, the spindle being disposed on the machine tool body, the machine tool body being used to drive the spindle to rotate about the central axis of the spindle; and the aforementioned ultrasonic processing equipment, wherein the ultrasonic tool holder of the ultrasonic processing equipment is connected to the spindle.

[0021] According to the machine tool of this application, the machine tool is equipped with an ultrasonic processing device, and the ultrasonic processing device is equipped with an ultrasonic tool holder. By setting a first air inlet channel in the fixing component of the ultrasonic tool holder, setting a transducer cooling branch in the tool body component, and setting a bearing cooling branch on the outer periphery of the bearing, after the external air source provides cooling gas to the first air inlet channel, the cooling gas is split to the transducer cooling branch and the bearing cooling branch. The cooling gas can exchange heat with the transducer and the bearing, and the cooled gas after heat exchange is discharged to the external environment. In this way, the heat generated by the transducer and the bearing during operation can be conducted to the external environment, which can prevent the transducer and the bearing from accumulating too much heat and becoming too hot, thereby preventing the transducer and the bearing from overheating and being damaged, and improving the stability of the ultrasonic tool holder during long-term operation.

[0022] Compared with the prior art, the ultrasonic tool holder, ultrasonic processing equipment, and machine tool implemented in this application have the following advantages:

[0023] By setting a first air inlet channel in the fixing assembly of the ultrasonic scalpel holder, a transducer cooling branch in the scalpel body assembly, and a bearing cooling branch on the outer periphery of the bearing, after an external air source provides cooling gas to the first air inlet channel, the cooling gas is diverted to the transducer cooling branch and the bearing cooling branch. The cooling gas can exchange heat with the transducer and the bearing, and the cooled gas after heat exchange is discharged to the external environment. This can conduct the heat generated by the transducer and the bearing during operation to the external environment, which can prevent the transducer and the bearing from accumulating too much heat and becoming too hot, thereby preventing the transducer and the bearing from overheating and being damaged, and improving the stability of the ultrasonic scalpel holder during long-term operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the ultrasonic processing equipment according to an embodiment of this application;

[0025] Figure 2 This is a cross-sectional view of the ultrasonic processing equipment according to an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the ultrasonic scalpel handle according to an embodiment of this application;

[0027] Figure 4 This is a top view of the ultrasonic scalpel handle according to an embodiment of this application;

[0028] Figure 5 yes Figure 4 Sectional view at point AA;

[0029] Figure 6 yes Figure 4 Sectional view at point BB;

[0030] Figure 7 yes Figure 4 Sectional view at CC;

[0031] Figure 8 This is a schematic diagram of the tool changing ring according to an embodiment of this application;

[0032] Figure 9 This is a schematic diagram of the flow guide component according to an embodiment of this application;

[0033] Figure 10 This is a schematic diagram of the outer casing according to an embodiment of this application;

[0034] Figure 11 This is a top view of the connecting bracket according to an embodiment of this application;

[0035] Figure 12 yes Figure 11 Sectional view at point DD;

[0036] Figure 13 This is a schematic diagram of a portion of the structure of the ultrasonic scalpel handle according to an embodiment of this application;

[0037] Figure 14 This is a cross-sectional view of a portion of the structure of the ultrasonic scalpel handle according to an embodiment of this application;

[0038] Figure 15 This is a schematic diagram of the braking mechanism according to an embodiment of this application;

[0039] Figure 16 This is a schematic diagram of the friction component according to an embodiment of this application;

[0040] Figure 17 This is a front view of the trigger element in an embodiment of this application.

[0041] In the diagram, 1000 is the ultrasonic processing equipment; 100 is the ultrasonic tool holder; 200 is the transducer; 300 is the amplitude transformer; 400 is the cutting tool; 500 is the tool body assembly; and 600 is the fixing assembly.

[0042] 1. Cutter body; 11. Mounting cavity; 12. Connecting hole; 13. Receiving groove; 14. Positioning notch; 15. First stop; 16. First friction area;

[0043] 2. Wireless receiving unit;

[0044] 3. Connecting sleeve; 31. Clearance hole; 32. Mounting part; 33. First stop surface;

[0045] 4. Outer shell; 41. Annular jet channel; 411. Annular jet groove; 412. Flow channel; 42. Second exhaust port;

[0046] 5. Bearing; 51. Bearing cooling channel; 511. Guide groove; 52. Bearing cooling component; 521. Cooling component body; 522. Guide rib; 53. Bearing end cover; 531. Second stop surface; 54. Bearing pressing part;

[0047] 6. Tool changing ring; 61. Tool changing groove; 62. Second stop section;

[0048] 7. Outer casing assembly; 71. First air inlet; 72. First air inlet channel; 73. Diverter channel; 74. Second air inlet; 75. Second air inlet channel; 76. Connecting pipe; 77. Side shell; 78. Cover plate; 79. First mounting channel; 710. Second mounting channel; 711. Movable annular groove;

[0049] 8. Guide vane; 81. Flange; 82. Airflow turbine; 821. Blade; 83. Connecting flow channel;

[0050] 9. Connecting bracket; 91. Connecting hole;

[0051] 10. Braking mechanism; 101. Friction component; 1011. Friction plate; 1012. Mounting block; 1013. Second friction area; 102. Transmission rod; 103. Trigger; 1031. Stop slope; 104. Pulley; 105. Pulley frame. Detailed Implementation

[0052] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0053] like Figures 1-17 As shown in the figure, this application discloses an ultrasonic processing device 1000 and an ultrasonic tool holder 100. The ultrasonic processing device 1000 includes an ultrasonic tool holder 100 and a cutting tool 400, as shown in the figure. Figure 1 , Figure 2 As shown, the ultrasonic shovel 100 includes a shovel assembly 500 and a fixing assembly 600, with the shovel assembly 500 rotatably mounted within the fixing assembly 600. The shovel assembly 500 contains a transducer 200 and an amplitude transformer 300. The amplitude transformer 300 is mounted on the front end of the transducer 200, extending from the end of the shovel assembly 500 away from the spindle. A cutting tool 400 is mounted on the end of the amplitude transformer 300 outside the shovel assembly 500. The transducer 200 converts electrical energy into high-frequency vibration, the amplitude transformer 300 transmits the vibration and increases the amplitude of the vibration generated by the transducer 200, and the cutting tool 400 receives the vibration and processes the workpiece. The rear end of the ultrasonic shovel 100 is connected to the spindle.

[0054] Specifically, the tool body assembly 500 includes a tool body 1, which has a second end and a first end arranged opposite to each other in the front-rear direction. The first end of the tool body 1 is adapted to be connected and engaged with the spindle of a machine tool. The first end of the tool body 1 is provided with a receiving groove 13 and a positioning notch 14. The positioning notch 14 is located on the outer periphery of the receiving groove 13 and is connected to the receiving groove 13. The spindle is adapted to be inserted into the receiving groove 13, and the positioning pin on the spindle is adapted to be inserted into the positioning notch 14. When the spindle drives the positioning pin to rotate, the positioning pin engages with the positioning notch 14, which allows the tool body 1 to rotate around the central axis of the tool body 1.

[0055] Furthermore, the second end of the cutter body 1 is provided with a mounting cavity 11, which is used to mount the transducer 200. In other words, the cutter body 1 can serve as a housing for mounting the transducer 200. It can also be understood that the cutter body 1, which is used to connect with the spindle, and the housing used to mount the transducer 200 are constructed as an integral part. Compared with setting the cutter body 1 and the housing used to mount the transducer 200 separately and connecting them together with fasteners, the cutter body 1 of this application has higher rigidity, which can improve the machining accuracy of the ultrasonic cutter holder 100 and also improve the machining efficiency of the ultrasonic cutter holder 100.

[0056] It should be noted that the front-to-back direction of the ultrasonic scalpel holder 100 can refer to... Figure 2 The ultrasonic scalpel shank 100 is aligned with the axial direction of the scalpel body 1 in the forward and backward direction. Furthermore, the first end of the scalpel body 1 can point to... Figure 2 The rear end of the middle blade 1, correspondingly, the second end of the blade 1 can refer to... Figure 2 The front end of the middle blade body 1.

[0057] Furthermore, the blade assembly 500 also includes a wireless receiver unit 2, such as... Figure 3 , Figure 4 As shown, the wireless receiving unit 2 is disposed on the blade body 1. In some preferred embodiments, the wireless receiving unit 2 is sleeved on the outer peripheral wall of the blade body 1, and the wireless receiving unit 2 can be detachably connected to the blade body 1. For example, the wireless receiving unit 2 can be connected to the blade body 1 by fasteners such as bolts or locking pins. Of course, in some embodiments, the wireless receiving unit 2 can be fixedly connected to the blade body 1. For example, the wireless receiving unit 2 can be fixedly connected to the blade body 1 by welding, riveting, or other methods. The wireless receiving unit 2 is suitable for electrical connection with the transducer 200. An external power supply first supplies power to the wireless receiving unit 2, and then the wireless receiving unit 2 supplies power to the transducer 200. The transducer 200 receives electrical energy and converts the electrical energy into high-frequency vibration.

[0058] The wireless receiving unit 2 may include a receiving magnet and a receiving coil. The receiving coil is disposed in the receiving magnet and is electrically connected to the transducer 200. In some specific embodiments, a wire passage is provided in the blade body 1 to avoid the electrical connection wire, so that the electrical connection wire is connected between the transducer 200 and the receiving coil.

[0059] Correspondingly, a wireless transmitting unit can be installed on the spindle of the machine tool. The wireless transmitting unit includes a transmitting magnet and a transmitting coil. The transmitting coil is installed inside the transmitting magnet and is electrically connected to an external power source. When the spindle of the machine tool is connected and engaged with the cutter body 1 of the ultrasonic cutter holder 100, the wireless transmitting unit and the wireless receiving unit 2 face each other. Power is supplied to the transmitting coil through the external power source, causing the transmitting magnet to generate a magnetic field. The wireless receiving unit 2 is located within the magnetic field generated by the wireless transmitting unit. Based on the principle of magneto-electric induction, the receiving coil can generate current and supply power to the transducer 200, thereby enabling the transducer 200 to convert electrical energy into high-frequency vibration.

[0060] By using a non-contact power supply method to power the ultrasonic tool holder 100, the heat generated by the ultrasonic tool holder 100 during operation can be reduced. When the machine tool drives the ultrasonic tool holder 100 to rotate at high speed, for example, when the rotation speed of the tool body 1 reaches 20,000 to 40,000 revolutions per minute, the non-contact power supply method can significantly reduce the heat generated by the ultrasonic tool holder 100 during operation, which helps to extend the service life of the ultrasonic tool holder 100.

[0061] Furthermore, the cutter body assembly 500 also includes a connecting sleeve 3 connected to the second end of the cutter body 1. The connecting sleeve 3 is coaxially arranged with the cutter body 1, and the amplitude transformer 300 is installed at the connection between the cutter body 1 and the connecting sleeve 3, extending beyond the front end of the connecting sleeve 3. Specifically, the connecting sleeve 3 is provided with a axial extension along the connecting sleeve 3 (i.e., Figure 2 The connecting sleeve 3 has a clearance hole 31 that passes through it in the front-back direction. The connecting sleeve 3 is coaxial with and fixedly connected to the cutter body 1. The second end of the connecting sleeve 3 is directly opposite to the second end of the cutter body 1, and the connecting sleeve 3 and the second end of the cutter body 1 together form a mounting part 32. The mounting part 32 is used to mount the amplitude transformer 300, and the clearance hole 31 is suitable for the amplitude transformer 300 to pass through. The mounting part 32 can be constructed as an annular mounting groove. The outer peripheral wall of the amplitude transformer 300 is provided with an annular connecting protrusion. The connecting protrusion is located at the end of the amplitude transformer 300 near the transducer 200. The connecting protrusion extends into the mounting groove, and the groove wall of the mounting groove abuts against the connecting protrusion, so that the connecting protrusion is confined within the mounting groove. In this way, the connecting protrusion can restrict the movement of the amplitude transformer 300 relative to the cutter body 1, and achieve the technical effect that the rotation of the cutter body 1 drives the amplitude transformer 300 to rotate.

[0062] Furthermore, such as Figure 6As shown, the outer peripheral wall of the connecting convex ring is provided with at least one locking pin. In some preferred embodiments, the outer peripheral wall of the connecting convex ring may be provided with multiple locking pins, which are arranged evenly spaced along the circumference of the connecting convex ring. The bottom of the mounting groove is provided with a corresponding locking hole, and the locking pin is inserted into the locking hole to further improve the connection reliability between the amplitude transformer 300 and the cutter body 1. Alternatively, the locking pin can be directly inserted into the mounting groove to fix the amplitude transformer 300.

[0063] Furthermore, such as Figure 2 As shown, the amplitude transformer 300 is opposite to and fixedly connected to the transducer 200. When the tool body 1 is driven by the machine tool spindle and rotates around the central axis of the tool body 1, the tool body 1 can drive the amplitude transformer 300 and the transducer 200 to rotate around the central axis of the tool body 1. The cutting tool 400 of the ultrasonic processing equipment 1000 is installed at the end of the amplitude transformer 300 away from the transducer 200. By allowing the clearance hole 31 to pass through the amplitude transformer 300, the end of the amplitude transformer 300 with the cutting tool 400 can extend out to the outside of the tool body assembly 500. The connecting sleeve 3 can guide and support the amplitude transformer 300.

[0064] The fixing component 600 is sleeved on the front end of the tool body assembly 500 via the bearing 5. In some specific embodiments, the fixing component 600 includes a housing 4, which is sleeved on the outer periphery of the connecting sleeve 3 via the bearing 5. That is, the bearing 5 is not located on the outer periphery of the tool body 1, meaning that the bearing 5 does not occupy the outer periphery space of the tool body 1 and can not affect the axial dimension of the tool body 1, thereby improving the rigidity of the tool body 1. Furthermore, since the circular runout near the end of the tool 400 is small, the machining accuracy of the machine tool can be improved. In addition, since the axial dimension of the amplitude rod 300 is relatively long, the corresponding connecting sleeve 3 can have a relatively long axial dimension. The outer periphery of the connecting sleeve 3 has a sufficiently large installation space for installing the bearing 5, thus not extending the overall axial dimension of the ultrasonic tool holder 100.

[0065] Furthermore, by ensuring that the bearing 5 does not occupy the outer peripheral space of the cutter body 1, i.e., without affecting the radial dimension of the cutter body 1, the space within the cutter body 1 for installing the transducer 200 is larger. This allows for a larger structural size of the transducer 200 that can be installed within the cutter body 1. It is understood that the transducer 200 generally includes a piezoelectric vibrator, which converts electromagnetic energy into mechanical energy. The specific working principle of the transducer 200 is well-documented in existing technologies and will not be elaborated upon here. However, it is important to note that the performance of the transducer 200 is closely related to the dimensions of its components. For example, a larger piezoelectric vibrator results in better transducer 200 performance. Increasing the structural size of the transducer 200 installed within the cutter body 1 can significantly improve its performance, such as increasing its output power.

[0066] Furthermore, since the radial dimension of the amplitude transformer 300 is small, the corresponding radial dimension of the connecting sleeve 3 is also small. When the bearing 5 is located on the outer periphery of the connecting sleeve 3, by designing the inner diameter of the bearing 5 to be less than or equal to the outer diameter of the second end of the cutter body 1, the radial dimension of the bearing 5 in this application is smaller than that of the bearing 5 located on the outer periphery of the cutter body 1. When the spindle drives the cutter body 1 to rotate at high speed, the linear velocity of the inner ring of the bearing 5 can be effectively reduced, thereby reducing the heat generation of the bearing 5. This allows the bearing 5 to operate at high speed for a long time, improving the service life of the bearing 5. This solves the problem that the existing ultrasonic cutter holder 100 requires frequent maintenance and replacement of the bearing 5, thereby improving the processing performance of the ultrasonic processing equipment 1000.

[0067] Furthermore, by placing the bearing 5 on the outer periphery of the connecting sleeve 3, the bearing 5 can be removed from the connecting sleeve 3 when it needs to be replaced. Compared to placing the bearing 5 on the outer periphery of the tool body 1, the ultrasonic tool holder 100 of this application does not have the bearing 5 passing through the tool body 1 when removing or installing the bearing 5, which can reduce the impact on the connection between the tool body 1 and the spindle, that is, it does not affect the first end of the tool body 1, thereby reducing the impact of the removal and installation of the bearing 5 on the machining accuracy of the ultrasonic processing equipment 1000.

[0068] like Figures 1-4 , Figure 8 As shown, in some embodiments of this application, the ultrasonic tool holder 100 may further include a tool changing ring 6, which is sleeved on the outer periphery of the tool body 1 and located between the wireless receiving unit 2 and the outer shell 4. In some embodiments, the tool changing ring 6 is fixedly connected to the tool body 1, while in other embodiments, the tool changing ring 6 can be movably disposed on the outer periphery of the tool body 1 via a carrier member. For example, the tool changing ring 6 can be rotatably sleeved on the outer periphery of the tool body 1 via a load bearing. A tool changing groove 61 is provided on the side wall of the tool changing ring 6 away from the tool body 1, and the tool changing groove 61 extends circumferentially along the tool body 1. When the machine tool needs to process the part blank multiple times according to the machining process, and the tool 400 required for at least two processing steps is of different specifications, or when the ultrasonic tool holder 100 needs cooling after long-term operation, the tool changing ring 6 on the ultrasonic tool holder 100 enables the machine tool to automatically change tools.

[0069] When the machine tool needs a tool change, the spindle moves the ultrasonic tool holder 100 to the tool magazine. The tool changing arm clamps the tool holder through the tool changing slot 61, and the spindle releases the tool to unlock the spindle and the ultrasonic tool holder 100 to be replaced. Then, the tool changing arm rotates to send the tool holder back to the tool magazine and moves the ultrasonic tool holder 100 to be used to the spindle side. After the spindle grips the tool, the spindle and the ultrasonic tool holder 100 to be used are interlocked, thus completing the automatic tool changing process of the machine tool. If the tool changing ring 6 is not provided, the ultrasonic tool holder 100 can only be fixed in the tool magazine by the outer shell 4. When the spindle moves to face the ultrasonic tool holder 100, the spindle moves towards the ultrasonic tool holder 100, which will exert a force on the outer shell 4, causing the bearing 5 to be stressed and thus damaging the bearing 5.

[0070] Furthermore, such as Figure 8 As shown, a positioning groove can also be provided on the tool changing ring 6. The positioning groove is connected to the tool changing groove 61. The width of the positioning groove is different from that of the tool changing groove 61. A positioning structure corresponding to the positioning groove can also be provided on the tool changing arm, so that the positioning structure extends into the positioning groove to realize the positioning of the tool changing arm and the ultrasonic scalpel handle 100.

[0071] Furthermore, such as Figure 2 , Figure 6 As shown, the blade body 1 is provided with a first stop 15, and the tool changing ring 6 is provided with a second stop 62. The first stop 15 and the second stop 62 abut against and are fixedly connected, so that the tool changing ring 6 is fixedly installed on the outer periphery of the blade body 1. By setting the tool changing ring 6, the ultrasonic scalpel handle 100 with ring spray function can automatically change the tool. Moreover, during tool changing, the force is applied to the blade body 1, avoiding direct action on the outer shell 4 with ring spray, thereby preventing damage to the bearing 5. The ring spray function of the ultrasonic scalpel handle 100 will be described in detail later.

[0072] like Figure 5 As shown, in some embodiments of this application, the mounting cavity 11 communicates with the external environment to form a transducer cooling branch, which can discharge gaseous medium to the external environment. A bearing cooling channel 51 is provided in the fixing assembly 600, surrounding the outer periphery of the bearing 5, and the bearing cooling channel 51 communicates with the external environment to form a bearing cooling branch, which can discharge gaseous medium to the external environment. A first air inlet channel 72 is also defined within the fixing assembly 600. The first air inlet channel 72 communicates with the transducer cooling branch and also with the bearing cooling branch. The first air inlet channel 72 is adapted to communicate with an external air source. The external air source is used to provide cooling gas to the first air inlet channel 72. The cooling gas can be air, or it can be designed as a specific refrigerant gas according to actual production needs.

[0073] After the external air source supplies cooling gas to the first air intake channel 72, a portion of the cooling gas is diverted to the transducer cooling branch. When the cooling gas flows through the mounting cavity 11, it can exchange heat with the transducer 200 inside the mounting cavity 11, so that the temperature of the transducer 200 decreases and the temperature of the cooling gas increases. The cooled gas after heat exchange is discharged to the external environment, thereby achieving the technical effect of the cooling gas conducting the heat generated by the transducer 200 during operation to the outside of the ultrasonic scalpel handle 100. This ensures that the transducer 200 will not overheat and be damaged after long-term operation.

[0074] Furthermore, another portion of the cooling gas is diverted to the bearing cooling branch. As the cooling gas flows along the bearing cooling channel 51, it exchanges heat with the bearing 5, thereby lowering the temperature of the bearing 5 and raising the temperature of the cooling gas. The cooled gas after heat exchange is then discharged to the external environment. When the spindle drives the connecting sleeve 3 to rotate relative to the outer casing 4, and the inner ring of the bearing 5 to rotate relative to the outer ring, the heat generated by the internal friction of the bearing 5 can be conducted to the outside of the ultrasonic stalk 100 through the cooling gas, thus ensuring that the bearing 5 will not overheat and be damaged after long-term operation.

[0075] Furthermore, the ultrasonic scalpel handle 100 has a first exhaust port communicating with the external environment, through which the mounting cavity 11 can discharge gas to the external environment. In some specific embodiments, the gap between the amplitude transformer 300 and the connecting sleeve 3 is configured as the first exhaust port, or a first exhaust hole is provided on the connecting protrusion of the amplitude transformer 300. However, this application is not limited to this. For example, in other embodiments, the ultrasonic scalpel handle 100 may be provided with an additional hole structure to be used as the first exhaust port.

[0076] The outer casing 4 has a second exhaust port 42 that communicates with the external environment, and the bearing cooling channel 51 can be connected to the external environment through the second exhaust port 42. In some specific implementations, such as Figure 5 , Figure 10 As shown, the second exhaust port 42 is located near the front end of the outer casing 4. Of course, the second exhaust port 42 can also be formed by the outer casing 4 and other units of the ultrasonic scalpel handle 100.

[0077] Furthermore, such as Figure 1 , Figure 3 , Figure 5 As shown, the fixing assembly 600 also includes an outer casing assembly 7, which is fixed to the rear end of the outer casing 4. This means that there can be no relative movement between the outer casing assembly 7 and the outer casing 4. The outer casing assembly 7 is provided with the aforementioned first air intake channel 72. The outer casing assembly 7 also has a first air inlet 71, which communicates with the first air intake channel 72. The first air inlet 71 is adapted to be connected to an external air source, which can provide cooling gas to the first air intake channel 72 through the first air inlet 71.

[0078] In some embodiments of this application, the fixing assembly 600 further includes a bearing cooling element 52, such as... Figure 5 , Figure 13 , Figure 14 As shown, the outer peripheral wall of the bearing 5 and the inner peripheral wall of the housing 4 are spaced apart to form an installation gap. The bearing cooling component 52 is installed in the installation gap. That is, the bearing cooling component 52 is set in the installation gap between the housing 4 and the bearing 5. A guide groove 511 is opened on the outer peripheral side of the bearing cooling component 52. The guide groove 511 is axial in the back-to-back direction and is spirally arranged on the outer side of the bearing cooling component 52. The guide groove 511 and the housing 4 form a bearing cooling channel 51.

[0079] Specifically, the bearing cooling component 52 includes a cooling component body 521 and a guide rib 522. The cooling component body 521 is sleeved on the outer periphery of the bearing 5 and can be fixedly connected to the outer ring of the bearing 5. The bearing cooling component 52 is also fixedly connected to the outer shell 4, thus achieving the technical effect of indirect fixed connection between the outer shell 4 and the outer ring of the bearing 5. When the spindle drives the cutter body 1 to rotate the connecting sleeve 3, the outer housing assembly 7, the outer shell 4, the bearing cooling component 52 and the outer ring of the bearing 5 are stationary relative to the spindle. The cutter body 1, the connecting sleeve 3, the transducer 200, the amplitude rod 300, the cutter 400 and the inner ring of the bearing 5 rotate with the spindle.

[0080] The guide rib 522 is disposed on the outer peripheral wall of the cooling component body 521, and the guide rib 522 extends radially toward the inner peripheral wall of the outer casing 4 along the bearing cooling component 52, such as... Figure 13 As shown, there are multiple guide ribs 522, each of which is spirally arranged on the outer surface of the cooling component body 521 with the back-to-forehead direction as the axial direction. The multiple guide ribs 522 are arranged sequentially at intervals along the circumference of the cooling component body 521, and a guide groove 511 is formed between any two adjacent guide ribs 522, so that the guide groove 511 and the outer shell 44 together define the bearing cooling channel 51.

[0081] In other words, the bearing cooling component 52 can have multiple guide grooves 511. These guide grooves 511, in conjunction with the outer casing 4, define multiple bearing cooling channels 51. Each bearing cooling channel 51 is connected to the second exhaust port 42. The cooling gas that is diverted to the bearing cooling branch is distributed into multiple bearing cooling channels 51 to cool the bearing 5. This ensures uniform circumferential temperature of the bearing 5, preventing localized overheating. By designing the flow path of the cooling gas within the bearing cooling channels 51 as a spiral shape, the flow of the cooling gas within the bearing cooling channels 51 can be prolonged, improving the cooling effect.

[0082] Of course, this application is not limited to this, and the bearing cooling channel 51 can also be constructed in other shapes that are conducive to heat dissipation of the bearing 5.

[0083] like Figure 14 As shown, in some specific embodiments of this application, the connecting sleeve 3 is provided with a first stop surface 33, and the rear end face of the bearing 5 abuts against the first stop surface 33. The ultrasonic scalpel holder 100 also includes a bearing end cap 53, which has a second stop surface 531, and the front end face of the bearing 5 abuts against the second stop surface 531. By cooperating with the connecting sleeve 3, the bearing 5 can be confined between the first stop surface 33 and the second stop surface 531, thereby restricting the bearing 5 from moving relative to the connecting sleeve 3 along the axial direction. The bearing pressing part 54 and the bearing cooling part 52 are locked to the outer ring of the bearing 5, and a seal is provided between the bearing end cap 53 and the bearing pressing part 54 to prevent gas impurities from entering the bearing 5.

[0084] like Figure 5 , Figure 9 As shown, in some embodiments of this application, the ultrasonic scalpel handle 100 further includes a guide member 8 fixedly sleeved on the scalpel body assembly 500. In some specific embodiments, the guide member 8 is located between the outer housing assembly 7 and the wireless receiving unit 2. The guide member 8 includes a flange portion 81 and an airflow turbine 82 fixedly connected. The flange portion 81 is sleeved on the outer periphery of the scalpel body assembly 500 and connected and cooperates with the scalpel body assembly 500. Specifically, as shown... Figure 5 As shown, the flange 81 is fixedly connected to the tool changing ring 6. For example, the flange 81 and the tool changing ring 6 can be fixedly connected by means of screwing, riveting, etc., and the tool changing ring 6 is fixedly connected to the tool body 1. Thus, the flange 81 and the tool body 1 can be indirectly fixedly connected together. At this time, the flange 81 is sleeved on the outer periphery of the tool body 1.

[0085] Furthermore, a gap is provided between the flange 81 and the fixing component 600, in Figure 5 In the embodiment shown, a gap is provided between the flange 81 and the outer housing assembly 7. This arrangement can prevent the flange 81 from contacting the outer housing assembly 7 when the guide member 8 rotates.

[0086] The flange 81 is spaced apart from the blade body 1 to form a connecting channel 83. The blade body 1 is provided with a connecting hole 12 connecting the connecting channel 83 and the mounting cavity 11. The connecting channel 83 connects the first air intake channel 72 and the mounting cavity 11. The cooling gas diverted to the mounting cavity 11 can flow through the connecting channel 83 and the connecting hole 12 in sequence before flowing into the mounting cavity 11 to cool the transducer 200. Furthermore, from the perspective of the flow direction of the cooling gas in the ultrasonic scalpel handle 100, since the diversion channel 73 between the transducer cooling branch and the bearing cooling branch is located between the transducer 200 and the bearing 5 (the diversion channel 73 will be described in detail later), in order to ensure that the cooling gas in the transducer cooling branch flows forward from the rear end of the transducer 200, the connecting hole 12 is located away from the connection between the first air intake channel and the connecting channel 83. In addition, a gap is formed between the tool changing ring 6 and the tool body 1. The gap between the tool changing ring 6 and the tool body 1 can be constructed as an extension of the connecting channel 83. In this way, the connecting length of the connecting channel 83 is longer, and the connecting hole 12 is arranged more flexibly on the tool body 1, thereby improving the cooling requirements of the transducer cooling branch.

[0087] Furthermore, the airflow turbine 82 includes at least one blade 821, which is disposed on the inner peripheral wall of the flange portion 81 and located in the connecting flow channel 83. The blade 821 extends radially toward the cutter body 1. When the spindle drives the cutter body 1 to rotate, the cutter body 1 drives the guide member 8 to rotate around the central axis of the cutter body 1. When the guide member 8 rotates, the blade 821 draws the cooling gas from the first inlet airflow channel 72 into the connecting flow channel 83, thereby making it easier for the cooling air to flow into the mounting cavity 11 to cool the transducer 200.

[0088] Furthermore, along the front-rear direction of the ultrasonic scalpel holder 100, the outlet end of the first inlet air passage 72 is located between the connecting passage 83 and the bearing cooling passage 51, and the connecting passage 83 is located on the side of the bearing cooling passage 51 closer to the spindle, that is, the connecting passage 83 is set close to the transducer cooling branch. By setting the outlet end of the first inlet air passage 72 between the connecting passage 83 and the bearing cooling passage 51, the interval distance between the first inlet air passage 72 and the connecting passage 83, and between the first inlet air passage 72 and the bearing cooling passage 51, can be made approximately the same. The pressure loss of the cooling gas flowing to the connecting passage 83 and the bearing cooling passage 51 is approximately the same. This can ensure that both the transducer cooling branch and the bearing cooling branch can obtain a sufficient amount of cooling gas, thereby ensuring that both the transducer 200 and the bearing 5 are adequately cooled.

[0089] like Figure 5As shown, in some embodiments of this application, the outer casing assembly 7 includes a side shell 77 and a cover plate 78. The side shell 77 is fixedly connected to the outer casing 4, and a first air inlet channel 72 is defined within the side shell 77. The cover plate 78 covers the rear side of the side shell 77 and is provided with a first air inlet 71. The side shell 77 and the connecting sleeve 3 or the blade body 1 are radially spaced apart along the connecting sleeve 3 to form a diversion channel 73. The diversion channel 73 has an air inlet end and an air outlet end. The diversion channel 73 may be provided with two air outlet ends, namely a first air outlet end and a second air outlet end. The air inlet end is connected to the first air inlet channel 72, the first air outlet end is connected to the transducer cooling branch, and the second air outlet end is connected to the bearing cooling branch, so that the first air inlet channel 72 is connected to both the mounting cavity 11 and the bearing cooling channel 51. This arrangement can ensure that the cooling gas in the first air inlet channel 72 is diverted to the mounting cavity 11 and the bearing cooling channel 51 to cool the transducer 200 and the bearing 5.

[0090] like Figure 7 , Figure 11 , Figure 12 As shown, in some embodiments of this application, the outer casing assembly 7 may further be provided with a second air inlet 74, and the outer casing assembly 7 may further define a second air inlet channel 75. Figure 1 , Figure 3 In the illustrated embodiment, the cover plate 78 is provided with a second air inlet 74, and a second air intake channel 75 communicating with the second air inlet 74 is defined within the side housing 77. It should be noted that the second air intake channel 75 and the first air intake channel 72 are separated, which restricts the exchange of gas between the second air intake channel 75 and the first air intake channel 72, thereby providing suitable cooling gas for different cooling requirements in the ultrasonic handpiece.

[0091] The end of the outer casing 4 furthest from the machine tool spindle (i.e. Figure 7 The front end of the outer casing 4 may be provided with a connecting bracket 9, and the front end of the outer casing 4 is formed with an annular spray groove 411 (e.g. Figure 10 As shown, the connecting bracket 9 seals the ring spray groove 411 to form a ring spray channel 41, which has a ring-shaped structure. Furthermore, a flow channel 412 is provided inside the outer casing 4. The second air inlet 74, the second air inlet channel 75, the flow channel 412, and the ring spray channel 41 are sequentially connected. The second air inlet 74 is suitable for connection and cooperation with an external air source. The ring spray channel 41 can connect to a cooling nozzle, and the external air source can provide cooling gas to the cooling nozzle through the aforementioned connecting air path, causing the cooling nozzle to spray cooling gas towards the tool 400 to cool the tool 400 and the workpiece.

[0092] In some specific embodiments, the connecting bracket 9 has at least one connecting hole 91, which communicates with the annular jet channel 41 and is used to install a cooling nozzle. The cooling nozzle has an orifice facing the tool 400. After the cooling nozzle is installed in the connecting hole 91, it communicates with the annular jet channel 41. The cooling gas in the annular jet channel 41 can flow further to the cooling nozzle, and then the cooling gas is sprayed from the cooling nozzle toward the tool 400 to cool the tool 400 and the workpiece. This prevents the tool 400 from overheating and being damaged after long-term operation, thus realizing the annular jet function of the ultrasonic handle.

[0093] In some preferred embodiments, such as Figure 11 , Figure 12 As shown, the connecting bracket 9 can be provided with multiple connecting holes 91. The multiple connecting holes 91 are arranged sequentially and spaced apart along the circumference of the outer shell 4. Each connecting hole 91 is equipped with a corresponding cooling nozzle. By spraying cooling gas onto the tool 400 through multiple cooling nozzles, the temperature of the tool 400 can be made more uniform, and the cooling effect of the ultrasonic tool holder 100 on the tool 400 is better.

[0094] According to some specific implementation schemes of this application, such as Figure 7 As shown, a connecting pipe 76 can be installed inside the outer casing 4. One end of the connecting pipe 76 is connected to the second air intake channel 75, and the other end of the connecting pipe 76 is connected to the annular jet channel 41. The connecting pipe 76 forms the aforementioned flow channel 412 to achieve the technical effect of interconnecting the second air intake channel 75 and the annular jet channel 41.

[0095] Furthermore, when the end of the outer casing 4 is provided with a connecting bracket 9, by setting the tool changing ring 6 on the outer periphery of the tool body 1, when the ultrasonic tool holder 100 is loaded on the spindle, the point of force of the loading force on the ultrasonic tool holder 100 is located on the tool body 1, which can reduce the compression on the connecting bracket 9, thereby reducing the loading force on the bearing 5, thus preventing the bearing 5 from being damaged by force and improving the service life of the bearing 5.

[0096] When the ultrasonic tool holder 100 is in operation, the machine tool spindle is connected to the rear side of the tool body 1, driving the tool body 1 to rotate. During the rotation of the tool body 1, the fixing component 600 remains stationary relative to the tool body 1. However, since the tool body 1 can rotate relative to the fixing component 600, after the tool body 1 disengages from the spindle, relative rotation occurs between the tool body 1 and the fixing component 600, causing the tool body 1 to deviate from its docking position with the spindle. This results in the spindle being unable to align with the tool body 1 when the ultrasonic tool holder 100 is re-engaged, thus preventing tool changing on the machine tool. To address this, a braking mechanism 10 can be provided on the ultrasonic tool holder 100 to limit the relative rotation between the tool body 1 and the fixing component 600 when the tool body 1 disengages from the spindle. Of course, the braking mechanism 10 of this application can also limit the relative rotation between the tool body 1 and the fixing component 600 during the transport of the ultrasonic tool holder 100.

[0097] like Figure 6 , Figures 15-17 As shown, at least a portion of the outer peripheral wall of the blade assembly 500 of the ultrasonic scalpel handle 100 is provided with a first friction region 16. The braking mechanism 10 is installed in the fixing assembly 600. The braking mechanism 10 includes a friction element 101. The braking mechanism 10 is adapted to switch between a first trigger state and a second trigger state. The friction element 101 has a second friction region 1013 opposite to the first friction region 16. In some preferred embodiments, the second friction region 1013 may be formed by a rough surface.

[0098] In the first triggered state, the friction element 101 is driven to abut against the blade assembly 500, causing the second friction area 1013 to contact the first friction area 16. The friction between the second friction area 1013 and the first friction area 16 can restrict the movement of the blade assembly 500 relative to the fixed component 600, thus making the blade assembly 500 relatively stationary with respect to the fixed component 600, thereby achieving the technical effect of braking the blade assembly 500. When the braking mechanism 10 of the ultrasonic scalpel handle 100 to be used is in the first triggered state, the spindle can easily align with and connect to the receiving groove 13 and the positioning notch 14 of the ultrasonic scalpel handle 100.

[0099] The tool body assembly 500 has at least a portion of its outer peripheral wall with a first friction area 16. Alternatively, the first friction area 16 can be located on the entire annular outer peripheral wall. When the first friction area 16 is the entire annular outer peripheral wall, the tool body assembly 500 and the fixing assembly 600 can be relatively stationary at any position, facilitating tool magazine changes and adjustments. In some embodiments, the first friction area 16 is formed by the annular outer peripheral wall of the tool body assembly 500, and the annular outer peripheral wall of the tool body assembly 500 has a rough surface. In other embodiments, the first friction area 16 includes an annular friction assembly fixed to the outer periphery of the tool body assembly 500. The annular friction assembly can be formed by a single friction plate or by splicing together at least two friction plates. The surface of the friction plate forming the first friction area 16 can be a rough surface.

[0100] Furthermore, at least a portion of the outer peripheral wall of the blade body 1 is provided with a first friction area 16 and / or at least a portion of the outer peripheral wall of the connecting sleeve 3 is provided with a first friction area 16. That is, the first friction area 16 is located on the outer peripheral side of the blade body 1, or the first friction area 16 is located on the outer peripheral side of the connecting sleeve 3, or the first friction area 16 is partially located on the outer peripheral side of the blade body 1 and the other part is located on the outer peripheral side of the connecting sleeve 3. The actual setting of the first friction area 16 can be set according to the specific structure of the blade body assembly 500.

[0101] It should be noted that the roughness and area of ​​the first friction region 16 and the roughness and area of ​​the second friction region 1013 can be set according to the actual size, weight, and actual usage scenario of the ultrasonic scalpel handle 100. Furthermore, when the first friction region 16 is an annular region, the second friction region 1013 can remain directly opposite the first friction region 16 when the scalpel assembly 500 rotates relative to the fixed assembly 600 to any angle. This allows the braking mechanism 10 to brake the scalpel assembly 500 at any position, thereby improving the ease of use of the braking mechanism 10 and reducing the braking difficulty of the ultrasonic scalpel handle 100.

[0102] In the second triggered state, the friction element 101 is driven to separate from the tool body assembly 500, creating a gap between the second friction area 1013 and the first friction area 16, thereby unlocking the tool body assembly 500 and allowing it to rotate relative to the fixed assembly 600. Specifically, when the spindle and ultrasonic tool holder 100 are in place, the braking mechanism 10 is in the second triggered state. By unlocking the tool body assembly 500, it is no longer subject to the frictional force of the friction element 101, and can be driven by the spindle to process the object.

[0103] Therefore, during the replacement of the ultrasonic tool holder 100 on the machine tool, or during the idle period of the ultrasonic tool holder 100, by making the friction member 101 abut against the tool body assembly 500, the friction force between the first friction area 16 and the second friction area 1013 is used to brake the tool body assembly 500, so that the tool body assembly 500 and the fixed assembly 600 are relatively stationary, preventing them from rotating relative to each other. Compared with the method of braking the tool body assembly 500 by locking pin and locking groove, the braking mechanism 10 of this application adopts non-rigid contact with the tool body assembly 500. The side wall of the friction member 101 can buffer and absorb energy, and the impact adaptability is better. It can also reduce the magnitude of the impact force transmitted to the tool body assembly 500 and the fixed assembly 600. In addition, the assembly precision of the braking mechanism 10 in this embodiment is relatively low compared with rigid connection, so it is relatively easy to manufacture. In addition, the first friction area 16 and the second friction area 1013 are worn evenly, which can reduce the wear rate of the braking mechanism 10 and avoid setting up easily worn slots. This can improve the product quality of the ultrasonic tool holder 100 and extend the service life of the ultrasonic tool holder 100.

[0104] like Figure 2 , Figure 6 , Figure 15 As shown, in some embodiments of this application, the braking mechanism 10 further includes a transmission rod 102, which can reciprocate within the fixing assembly 600 to move closer to or further away from the blade assembly 500. Figure 6 In the illustrated embodiment, the transmission rod 102 extends into the housing 4 and is adapted to move radially relative to the blade assembly 500. The friction element 101 is disposed at one end of the transmission rod 102 near the blade assembly 500. It should be noted that the friction element 101 can be independently disposed from the transmission rod 102, which facilitates the disassembly and assembly of the braking mechanism 10 within the ultrasonic scalpel handle 100. However, this application is not limited to this. For example, in some embodiments, the friction element 101 can be separately disposed from the transmission rod 102, which facilitates the replacement of the friction element 101.

[0105] When the braking mechanism 10 switches between the first trigger state and the second trigger state, the transmission rod 102 drives the friction element 101 to move closer to or away from the blade assembly 500, causing the friction element 101 to stop or separate from the blade assembly 500. By using the transmission rod 102 to drive the friction element 101 to move relative to the blade assembly 500, the distance between the component driving the friction element 101 (e.g., the trigger element 103, which will be described in detail later) and the friction element 101 is extended. Compared to arranging the component driving the friction element 101 to move compactly together with the friction element 101, setting the transmission rod 102 between them makes it easier to arrange the braking mechanism 10 within the fixed assembly 600, thereby making the ultrasonic scalpel handle 100 easier to maintain.

[0106] For example, 1- Figure 4 , Figure 6 , Figure 15 As shown, in some embodiments of this application, the braking mechanism 10 further includes a trigger 103, which is installed inside the outer housing assembly 7. The trigger 103 has an initial position and a trigger position relative to the outer housing 4. The trigger 103 is driven to move between the initial position and the trigger position. When the trigger 103 is in the initial position, the braking mechanism 10 is in a first trigger state; when the trigger 103 is in the trigger position, the braking mechanism 10 is in a second trigger state. In this way, when the trigger 103 is driven, the transmission rod 102 moves away from the blade assembly 500, which can achieve the technical effect of switching the braking mechanism 10 from the first trigger state to the second trigger state.

[0107] Furthermore, the braking mechanism 10 can be controlled by mechanical triggering, which can improve the working reliability of the braking mechanism 10. Moreover, there is no need to install additional electric drive components in the braking mechanism 10, which can reduce the production cost of the braking mechanism 10.

[0108] Furthermore, such as Figure 2 , Figure 6 As shown, the trigger 103 extends axially along the cutter body assembly 500. Specifically, the trigger 103 extends towards the spindle along the axial direction of the cutter body assembly 500, i.e., rearward. The initial position and the trigger position are spaced apart axially along the housing 4. By extending the trigger 103 towards the spindle, a drive structure facing the trigger 103 can be provided on the outer periphery or front end face of the spindle housing. In some preferred embodiments, the drive structure can be a drive protrusion. The spindle rotates through the spindle housing, which is positioned opposite the fixing assembly 600. It should be noted that when the trigger 103 extends axially along the cutter body assembly 500, the extension axis of the trigger 103 is parallel to or coincides with the central axis of the cutter body 1.

[0109] When the braking mechanism 10 switches from the first trigger state to the second trigger state, the trigger member 103 moves closer to the transmission rod 102, and the trigger member 103 drives the transmission rod 102 away from the cutter body assembly 500 until the friction member 101 is driven to separate from the cutter body assembly 500. At this time, the braking mechanism 10 is in the second trigger state. In some specific embodiments, when the spindle is connected to the cutter body assembly 500, the drive protrusion on the spindle housing side presses the trigger member 103, causing the trigger member 103 to move from the initial position to the trigger position, thereby unlocking the cutter body assembly 500. That is, at this time, the cutter body assembly 500 and the fixed assembly 600 can rotate relative to each other. When the spindle is separated from the cutter body assembly 500, the drive protrusion no longer presses the trigger member 103, and the trigger member 103 can return from the trigger position to the initial position. The friction member 101 is no longer driven away from the cutter body assembly 500 by the force of the trigger member 103.

[0110] Therefore, when the relative position of the spindle and the tool body assembly 500 is adjusted, the position of the trigger 103 changes relative to each other, thereby adjusting the triggering state of the braking mechanism 10. The triggering method of the braking mechanism 10 is simpler, thereby reducing the number of parts required to trigger the braking mechanism 10.

[0111] According to some specific embodiments of this application, the trigger 103 can also be a trigger switch, and the transmission rod 102 moves closer to or further away from the tool body assembly 500 when driven. When the machine tool sends a trigger signal to the trigger 103, and the trigger 103 receives the trigger signal, the trigger 103 can control the braking mechanism 10 to switch to the first trigger state or the second trigger state according to the trigger signal, and the trigger 103 can drive the transmission rod 102 to move to the corresponding position.

[0112] like Figure 2 , Figure 6 As shown, in some embodiments of this application, the fixing component 600 defines a first mounting channel 79 and a second mounting channel 710. Figure 6 In the illustrated embodiment, the first mounting channel 79 and the second mounting channel 710 can be defined by the outer housing assembly 7. The first mounting channel 79 extends radially along the blade assembly 500, and the second mounting channel 710 extends axially along the blade assembly 500. The first mounting channel 79 and the second mounting channel 710 are interconnected. The transmission rod 102 is movably disposed in the first mounting channel 79, and the trigger member 103 is movably disposed in the second mounting channel 710.

[0113] Furthermore, both the first mounting channel 79 and the second mounting channel 710 are located inside the side housing 77. The cover plate 78 is provided with an opening that communicates with the second mounting channel 710. The drive structure on the spindle housing can pass through the opening to contact the trigger 103, or the trigger 103 can pass through the opening to the outside of the outer housing assembly 7 to stop against the drive structure on the spindle housing.

[0114] Furthermore, the first mounting channel 79 guides and limits the transmission rod 102, thereby enabling the transmission rod 102 to move precisely radially along the cutter body assembly 500. The second mounting channel 710 guides and limits the trigger member 103, thereby enabling the trigger member 103 to move precisely axially along the cutter body assembly 500. The cooperation between the first mounting channel 79 and the second mounting channel 710 prevents the braking mechanism 10 from deviating during movement.

[0115] like Figure 2 , Figure 6 and Figure 15As shown, in some embodiments of this application, a pulley 104 is provided at the end of the transmission rod 102 away from the friction member 101. The pulley 104 is in a stop-fitting engagement with the end of the trigger member 103 near the transmission rod 102. When the trigger member 103 moves closer to the transmission rod 102, the trigger member 103 and the pulley 104 roll together to drive the transmission rod 102 away from the blade assembly 500. The surface of the trigger member 103 opposite to the pulley 104 can be a transmission surface. The pulley 104 is rotatable relative to the transmission rod 102. When the trigger member 103 is pressed and triggered, the trigger member 103 moves axially along the blade assembly 500. At this time, the pulley 104 rolls along the transmission surface. The position of the pulley 104 within the fixed assembly 600 changes with the shape of the transmission surface, thereby allowing the pulley 104 to drive the transmission rod 102 closer to or away from the blade assembly 500.

[0116] By cooperating with the pulley 104, the moving direction of the trigger 103 can be reversed with the moving direction of the transmission rod 102. This makes the moving direction and setting position of the trigger 103 more flexible, which helps to meet the needs of different machine tool models.

[0117] In addition, by setting a pulley 104 between the transmission rod 102 and the trigger member 103 to realize the transmission of driving force, the pulley 104 experiences less friction when rolling, which makes the movement of the transmission rod 102 and the trigger member 103 smoother.

[0118] Furthermore, such as Figure 2 , Figure 6 , Figure 15 , Figure 17 As shown, the side wall of the trigger 103 that abuts against the pulley 104 can be provided with a stop slope 1031, that is, the transmission surface is constructed as a slope. From the rear side to the front side of the ultrasonic scalpel handle 100, the stop slope 1031 is inclined towards the scalpel body assembly 500. In some preferred embodiments, the outer peripheral wall profile of the pulley 104 can be a circular profile, and the stop slope 1031 can be a plane. The displacement of the pulley 104 corresponds to the slope of the stop slope 1031 and the displacement of the trigger 103. The ultrasonic scalpel handle 100 can more easily control the displacement of the pulley 104, and the movement of the pulley 104 can also be more stable.

[0119] Of course, in other embodiments, the shape of the outer peripheral wall of the pulley 104 and the shape of the stop slope 1031 can also be set according to the actual use scenario to meet the different displacement requirements of the transmission rod 102 and the trigger 103, as well as the force requirements between the pulley 104 and the trigger 103.

[0120] like Figure 2 , Figure 6 , Figure 15As shown, in some embodiments of this application, pulley 104 is mounted on transmission rod 102 via pulley bracket 105. Pulley bracket 105 is located at the end of transmission rod 102 near trigger member 103, meaning that pulley bracket 105 provides a mounting position for pulley 104. Pulley bracket 105 extends axially away from transmission rod 102, and pulley 104 is pivotally mounted on pulley bracket 105. Specifically, pulley bracket 105 may be provided with a pivot shaft, and pulley 104 is pivotally connected to the pivot shaft. Pulley 104 is adapted to rotate about the central axis of the pivot shaft.

[0121] Furthermore, the end of the pulley frame 105 near the transmission rod 102 is spaced apart from the pulley 104 to form a clearance gap, into which the trigger 103 can extend. By causing the trigger 103 located within the clearance gap to push the pulley 104 to move, the pulley 104 can drive the pulley frame 105 to move the transmission rod 102 closer to or away from the tool body assembly 500. At the same time, the clearance gap can avoid the trigger 103, thereby preventing interference between the trigger 103 and the transmission rod 102 when the trigger 103 moves, thus ensuring that the trigger 103 and the transmission rod 102 are in place.

[0122] In some embodiments of this application, the braking mechanism 10 further includes an elastic element (not shown in the figures), which is elastically deformably connected between the transmission rod 102 and the fixing assembly 600. When the braking mechanism 10 switches from the second trigger state to the first trigger state, the elastic element drives the transmission rod 102 to move closer to the tool body assembly 500 until the friction element 101 is driven to abut against the tool body assembly 500. At this time, the braking mechanism 10 is in the first trigger state. When the braking mechanism 10 switches to the first trigger state, the trigger element 103 is not pressed by the drive structure on the spindle housing. The trigger element 103 moves rearward, and the abutting inclined surface 1031 gradually separates from the pulley 104. Then, the transmission rod 102 is only acted upon by the elastic element.

[0123] Specifically, during the transition from the first trigger state to the second trigger state, the transmission rod 102 moves away from the blade assembly 500, and the transmission rod 102 drives the elastic element to move, for example, by squeezing the elastic element, causing it to undergo elastic deformation and generate elastic force. When the braking mechanism 10 switches from the second state to the first trigger state, the transmission rod 102 is no longer driven away from the blade assembly 500. At this time, the direction of the resultant force on the transmission rod 102 is consistent with the direction of the elastic force generated by the elastic element. The elastic element recovers its deformation and drives the transmission rod 102 to move closer to the blade assembly 500 until the friction element 101 at the end of the transmission rod 102 engages with the blade assembly 500, thereby achieving the technical effect of automatic reset of the braking mechanism 10.

[0124] In some preferred embodiments, after the friction element 101 stops against the blade assembly 500, the remaining elastic force of the elastic element can create a certain pressure between the friction block and the blade assembly 500, which can ensure that a sufficiently large frictional force is generated between the first friction area 16 and the second friction area 1013 to prevent the blade assembly 500 from rotating relative to the fixed assembly 600.

[0125] Furthermore, the elastic element can be constructed as a spring, and the spring is sleeved on the outer periphery of the transmission rod 102. The spring can be a helical spring. This arrangement can reduce the installation space occupied by the elastic element in the fixed assembly 600, thereby making the structure of the braking mechanism 10 more compact. In addition, the direction of the elastic force generated when the helical spring is sleeved on the outer periphery of the transmission rod 102 is collinear with the direction of movement of the transmission rod 102, which can make the transmission rod 102 bear force evenly and reduce the friction between the transmission rod 102 and the side wall of the first mounting channel 79, thereby making the movement of the transmission rod 102 smoother.

[0126] Furthermore, the fixing component 600 is provided with an annular movable groove 711, which is located within the first mounting channel 79. The helical spring is installed within the movable groove 711, which is used to avoid the helical spring so as to ensure that the helical spring can retract and extend when it is located outside the transmission rod 102.

[0127] However, this application is not limited to this. In some other specific embodiments, the elastic element can also be constructed as a torsion spring or a leaf spring, etc. The specific type of elastic element in the ultrasonic scalpel holder 100 can be set according to the usage scenario.

[0128] like Figure 15 , Figure 16 As shown, in some embodiments of this application, the friction element 101 includes a friction plate 1011 and a mounting block 1012. The friction plate 1011 and the mounting block 1012 can be independently disposed, and the friction plate 1011 and the mounting block 1012 can be detachably connected together by means of bonding, screwing, etc. The friction plate 1011 is mounted on the side wall of the mounting block 1012 near the blade assembly 500, and the side wall opposite to the blade assembly 500 is constructed as a second friction area 1013. The friction plate 1011 can be made of a material with a high coefficient of friction, so that a larger frictional force can be more easily generated between the braking mechanism 10 and the blade assembly 500. When the friction plate 1011 wears excessively after prolonged use, maintenance personnel can remove the excessively worn friction plate 1011 from the mounting block 1012 and install the friction plate 1011 to be used onto the mounting block 1012 to extend the service life of the braking mechanism 10. By separating the friction plate 1011 and the mounting block 1012 into two independently configured components, the maintenance cost of the braking mechanism 10 can be reduced compared to replacing the entire friction component 101.

[0129] Based on this, this application further discloses an ultrasonic processing device 1000. The ultrasonic processing device 1000 according to the embodiments of this application includes the ultrasonic tool holder 100 of the above embodiments. Figure 1 In the illustrated embodiment, the ultrasonic processing equipment 1000 can use a cutting tool 400 to process a hole structure on a part blank.

[0130] Based on the aforementioned ultrasonic processing equipment 1000, this embodiment also provides a machine tool, including a machine tool body, a spindle disposed on the machine tool body, and the aforementioned ultrasonic processing equipment 1000.

[0131] In summary, the ultrasonic scalpel holder 100 provided in this application has the following advantages:

[0132] 1. By placing the bearing 5 between the connecting sleeve 3 and the outer housing 4, the bearing 5 does not occupy the outer peripheral space of the tool body 1, thus not affecting the axial dimension of the tool body 1. This improves the rigidity of the tool body 1 and reduces the overall axial dimension of the ultrasonic tool holder 100, thereby improving the machining accuracy of the machine tool. Furthermore, since it does not affect the radial dimension of the tool body 1, the transducer 200 that can be installed inside the tool body 1 can have a larger structural size. Also, since the radial dimension of the amplitude transformer 300 is small, the radial dimension of the connecting sleeve 3 used to install the amplitude transformer 300 is small. When the bearing 5 is placed on the outer peripheral side of the connecting sleeve 3, compared to placing the bearing 5 on the outer peripheral side of the tool body 1, the radial dimension of the bearing 5 in this application can be smaller, allowing the bearing 5 to operate at high speeds for extended periods, thereby improving the machining performance of the ultrasonic tool holder 100.

[0133] 2. By setting a first air inlet channel 72 in the fixed component 600, setting a transducer cooling branch in the cutter body assembly 500, and setting a bearing cooling branch on the outer periphery of the bearing 5, after the external air source provides cooling gas to the first air inlet channel 72, the cooling gas is diverted to the transducer cooling branch and the bearing cooling branch. The cooling gas can exchange heat with the transducer 200 and the bearing 5. After heat exchange, the cooling gas is discharged to the external environment, thereby conducting the heat generated by the transducer 200 and the bearing 5 during operation to the external environment. This can prevent the transducer 200 and the bearing 5 from accumulating too much heat and becoming too hot, thus preventing the transducer 200 and the bearing 5 from overheating and being damaged, and improving the stability of the ultrasonic cutter holder 100 during long-term operation.

[0134] 3. By abutting the friction element 101 against the blade assembly 500, the friction between the first friction area 16 and the second friction area 1013 is used to brake the blade assembly 500 and the fixing component 600. Compared with the method of braking the blade assembly 500 by locking pin and locking groove, the braking mechanism 10 of this application adopts non-rigid contact with the blade assembly 500. The side wall of the friction element 101 can buffer and absorb energy, and the impact adaptability is better. It can also reduce the magnitude of the impact force transmitted to the blade assembly 500 and the fixing component 600. Moreover, the assembly precision of the braking mechanism 10 in this embodiment is relatively low compared with rigid connection. The first friction area 16 and the second friction area 1013 wear evenly, which can reduce the wear rate of the braking mechanism 10 and avoid setting up easily worn slots. This can improve the product quality of the ultrasonic scalpel handle 100 and extend the service life of the ultrasonic scalpel handle 100.

[0135] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. An ultrasonic scalpel handle, characterized in that, include: The blade assembly has a mounting cavity at its front end for mounting a transducer, and the mounting cavity is connected to the external environment to form a transducer cooling branch. A fixing component is sleeved on the front end of the cutter body assembly via a bearing. The fixing component has a bearing cooling channel that surrounds the outer periphery of the bearing, and the bearing cooling channel is connected to the external environment to form a bearing cooling branch. The fixed assembly further defines a first air inlet channel, which is connected to the transducer cooling branch and the bearing cooling branch. The first air inlet channel is adapted to be connected to an external air source.

2. The ultrasonic scalpel holder according to claim 1, characterized in that, The fixing assembly includes a bearing cooling component and a housing. The bearing cooling component is disposed between the housing and the bearing. A guide groove is formed on the outer periphery of the bearing cooling component. The guide groove is spirally arranged along the axial direction in the back-to-back direction and is spirally arranged on the outer side of the bearing cooling component. The guide groove and the housing form the bearing cooling channel.

3. The ultrasonic scalpel holder according to claim 1, characterized in that, It also includes a flow guide fixedly sleeved on the cutter body assembly. The flow guide includes a flange portion and an airflow turbine fixedly connected. There is a gap between the flange portion and the fixed assembly, and the flange portion and the cutter body assembly are spaced apart to form a communicating flow channel. The communicating flow channel communicates the first air inlet channel and the mounting cavity. The airflow turbine includes at least one blade disposed within the communicating flow channel, and the blade extends radially toward the cutter body assembly.

4. The ultrasonic scalpel holder according to claim 3, characterized in that, The blade assembly is provided with a connecting hole that connects the connecting channel and the mounting cavity, wherein the connecting hole is located away from the connection between the first air intake channel and the connecting channel.

5. The ultrasonic scalpel holder according to claim 1, characterized in that, The fixing assembly includes an outer shell and an outer housing assembly. The outer shell is sleeved on the front end of the blade assembly via a bearing, and the outer housing assembly is fixed to the rear end of the outer shell. The outer housing assembly defines the first air intake channel, and a bearing cooling channel is provided between the outer shell and the bearing.

6. The ultrasonic scalpel holder according to claim 5, characterized in that, The outer casing assembly includes a side shell and a cover plate. The side shell is fixedly connected to the outer casing, and the first air intake channel is defined inside the side shell. The cover plate is placed on the rear side of the side shell and has a first air inlet communicating with the first air intake channel. The first air inlet is adapted to be connected to an external air source.

7. The ultrasonic scalpel holder according to claim 1, characterized in that, The fixing component and the cutter body component are radially spaced apart to form a flow channel. The flow channel has an air inlet end and an air outlet end. The air inlet end is connected to the first air inlet channel, and the air outlet end is connected to the bearing cooling branch and the transducer cooling branch, respectively, so that the cooling airflow can enter the transducer cooling branch and the bearing cooling branch, respectively.

8. The ultrasonic scalpel holder according to claim 6, characterized in that, The cover plate is also provided with a second air inlet, and a second air intake channel communicating with the second air inlet is defined inside the side housing. The second air intake channel is spaced apart from the first air intake channel. An annular spray groove is formed at the front end of the outer housing, and a connecting bracket is provided at the front end of the outer housing. The connecting bracket seals the annular spray groove to form an annular spray channel, and an overflow channel is opened inside the outer housing. The second air intake channel communicates with the annular spray channel through the overflow channel. The second air inlet is suitable for connection and cooperation with an external air source. The connecting bracket can be used to install a cooling nozzle communicating with the annular spray channel.

9. An ultrasonic processing device, characterized in that, Includes the ultrasonic scalpel holder according to any one of claims 1-8.

10. A machine tool, characterized in that, include: Machine tool body; A spindle is disposed on the machine tool body, and the machine tool body is used to drive the spindle to rotate around the central axis of the spindle; According to claim 9, the ultrasonic tool holder of the ultrasonic processing equipment is connected to the spindle.

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