Knife handle and machine tool

Abstract

The utility model discloses a knife handle and a machine tool, and relates to the technical field of ultrasonic machining equipment, the knife handle comprises a positioning assembly, the positioning assembly comprises a first positioning piece and a second positioning piece, the first positioning piece can be driven to be far away from a knife handle body, so that the first positioning piece is separated from a positioning groove; the second positioning piece abuts against the end, away from the cutter handle body, of the first positioning piece, the second positioning piece moves towards the rear side of the cutter handle body, the first positioning piece can be pushed to move towards the cutter handle body, and the first positioning piece extends into the positioning groove. The cutter handle is provided with the first positioning piece and the second positioning piece, so that the cutter handle can move towards the cutter handle body and extend into the positioning groove through the first positioning piece under the condition that the cutter handle is separated from the main shaft, the relative position of the cutter handle body and the outer shell assembly is fixed, and when the cutter handle is connected into the main shaft, the first positioning piece can be separated from the positioning groove. The cutter handle body can rotate relative to the outer shell assembly, and normal work of the cutter handle is not affected.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and in particular to a tool holder and a machine tool. Background Technology

[0002] When existing toolholder structures are assembled into machine tools, the toolholder body is driven to rotate by the spindle during operation, and can rotate relative to the housing. To mount the toolholder onto the spindle, there is usually a preset position between the toolholder body and the housing. When this preset position is met, the toolholder can engage with the spindle and be driven by it. However, when changing toolholders in the machining equipment, the toolholder disengages from the spindle, and the toolholder body and housing may rotate relative to each other. This changes the relative position between the toolholder body and housing, causing the toolholder to no longer meet the preset position. During reloading, the toolholder cannot smoothly engage with the spindle, requiring manual intervention from the machining operator and affecting the automatic tool changing process of the machining equipment. Utility Model Content

[0003] The purpose of this utility model is to provide a tool holder and a machine tool. By locking the relative position between the tool holder body and the outer shell assembly, the tool holder body can maintain the relative position between itself and the outer shell, ensuring that the tool holder can be used in processing equipment to achieve automatic tool changing, thereby solving the problem that existing tool holders are difficult to achieve automatic tool changing.

[0004] To achieve the above objectives, this utility model provides a

[0005] A knife handle, characterized in that it comprises:

[0006] The handle body has a positioning groove on its outer peripheral side;

[0007] A housing assembly, which is sleeved on the handle body and the handle body is rotatable relative to the housing assembly;

[0008] A positioning component, wherein the positioning component is disposed on the outer shell assembly, and the positioning component includes a first positioning element and a second positioning element, wherein...

[0009] The first positioning element can be driven away from the tool holder body, thereby disengaging the first positioning element from the positioning groove;

[0010] The second positioning member abuts against the end of the first positioning member away from the handle body. The second positioning member can reciprocate along the axial direction of the handle body. Furthermore, the second positioning member can move towards the rear side of the handle body, thereby pushing the first positioning member towards the handle body and causing the first positioning member to extend into the positioning groove.

[0011] In some embodiments, a first elastic element is connected to the first positioning member, and one end of the first elastic element near the handle body is connected to the outer housing assembly, and the other end of the first elastic element is connected to the first positioning member. The first positioning member can move toward the positioning groove to drive the first elastic element to elastically deform, and the elastic recovery of the first elastic element can drive the first positioning member away from the positioning groove, and cause the end of the first positioning member away from the handle body to abut against the second positioning member.

[0012] In some embodiments, the first elastic element is sleeved on the first positioning element.

[0013] In some embodiments, the second positioning member further includes a positioning post and a limiting block connected to each other. The positioning post is arranged on the front side of the limiting block, and the limiting block has a clearance space that is recessed inward, allowing the end of the first positioning member away from the handle body to extend into the clearance space, thereby enabling the first positioning member to disengage from the positioning groove; and...

[0014] The positioning post moves toward the rear side of the handle body, and the positioning post can abut against the end of the first positioning member away from the handle body, and push the first positioning member toward the handle body, so that the first positioning member extends into the positioning groove.

[0015] In some embodiments, the outer periphery of the limiting block is provided with an inclined surface that is inclined to the axial direction of the tool holder body. The inclined surface is arranged on the front side of the limiting block and is continuous with the outer periphery of the positioning post. Furthermore, the inclined surface gradually converges toward the rear side of the limiting block and connects to the clearance space.

[0016] In some embodiments, the outer contour of the positioning post is cylindrical, and the outer surface of the end of the first positioning member away from the handle body is spherical.

[0017] The positioning post moves toward the rear side of the handle body, and the positioning post can abut against the end of the first positioning member away from the handle body to form a point contact engagement, and push the first positioning member toward the handle body so that the first positioning member extends into the positioning groove.

[0018] In some embodiments, the second positioning member is connected to a second elastic member, and one end of the second elastic member is fixedly connected to the outer housing assembly, while the other end of the second elastic member abuts against the second positioning member. The second positioning member can move towards the front of the handle body to cause the second elastic member to elastically deform, and the elastic recovery of the second elastic member can cause the second positioning member to move towards the rear of the handle body.

[0019] In some embodiments, the outer casing assembly is provided with a first limiting groove, which extends outward from the outer periphery of the handle body toward the handle body and communicates with the positioning groove.

[0020] The first positioning member is disposed in the first limiting groove and can reciprocate within the first limiting groove to extend into and exit the positioning groove.

[0021] In some embodiments, a limiting flange extending inward is provided within the first limiting groove, the limiting flange being arranged on the outer periphery of the first positioning member, and...

[0022] The end of the first elastic element near the handle body is connected to the limiting flange.

[0023] In some embodiments, the housing assembly further includes a second limiting groove, the second limiting groove being arranged axially along the handle body and communicating with the end of the first limiting groove away from the handle body.

[0024] The second positioning element is disposed in the second limiting groove and can reciprocate within the second limiting groove.

[0025] In some embodiments, the positioning groove has an outwardly facing opening to connect to the outside, and the outer contour of the opening is polygonal in the direction in which the first positioning member enters or exits the positioning groove, and the outer contour of the end of the first positioning member facing the opening is polygonal, or a limiting member with a polygonal outer contour is installed at the end of the first positioning member facing the opening.

[0026] Based on the aforementioned tool holder, this utility model also provides a machine tool, including a machine tool body, a spindle disposed on the machine tool body, and the aforementioned tool holder, wherein the tool holder is installed at the front end of the spindle.

[0027] Compared with the prior art, the tool holder and machine tool implemented in this utility model have the following advantages:

[0028] The tool holder of this utility model is provided with a first positioning member and a second positioning member. When the tool holder is detached from the spindle, it can move toward the tool holder body through the first positioning member and extend into the positioning groove, so that the relative position of the tool holder body and the outer shell assembly is fixed. Moreover, when the tool holder is connected to the spindle, the first positioning member can disengage from the positioning groove, so that the tool holder body can rotate relative to the outer shell assembly without affecting the normal operation of the tool holder.

[0029] This utility model also provides a machine tool that uses the aforementioned tool holder and has the aforementioned beneficial effects of the tool holder. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the ultrasonic scalpel handle in an embodiment of this utility model;

[0031] Figure 2 This is a top view of the ultrasonic scalpel handle in an embodiment of this utility model, showing the cross-sectional position of AA;

[0032] Figure 3 yes Figure 2 Sectional view of AA;

[0033] Figure 4 yes Figure 3 Enlarged view of B in the middle;

[0034] Figure 5 This is a schematic diagram of the arrangement of the first air guide tube and the second air guide tube in an embodiment of this utility model;

[0035] Figure 6 This is a schematic diagram of the blade body and the transducer housing in an embodiment of this utility model;

[0036] Figure 7 This is a top view of the ultrasonic scalpel handle in an embodiment of this utility model, showing the cross-sectional position of CC;

[0037] Figure 8 yes Figure 7 CC section view;

[0038] Figure 9 yes Figure 8 Enlarged view of D;

[0039] Figure 10 yes Figure 9 Enlarged view of G in the middle;

[0040] Figure 11 yes Figure 8 Enlarged view of E in the middle;

[0041] Figure 12 yes Figure 8 Enlarged view of F in the middle;

[0042] Figure 13 This is a schematic diagram of the ultrasonic processing equipment in an embodiment of this utility model;

[0043] Figure 14 This is a top view of the ultrasonic processing equipment in an embodiment of the present invention, showing the cross-sectional position of HH;

[0044] Figure 15 yes Figure 14 Middle HH sectional view;

[0045] Figure 16 yes Figure 15 Enlarged view (Middle II);

[0046] Figure 17 This is a schematic diagram of the second housing in an embodiment of this utility model;

[0047] Figure 18 This is a schematic diagram of the second positioning element in an embodiment of this utility model;

[0048] Figure 19 This is a partial structural schematic diagram of the amplitude transformer in an embodiment of this utility model.

[0049] In the diagram, 100 is the ultrasonic scalpel handle; 1 is the handle body; 1a is the scalpel body; 1b is the transducer housing; 1b1 is the inner cavity; 1c is the mounting part; 2 is the outer shell assembly; 2a is the bearing pressure ring; 2b is the lower cover plate; 2c is the outer shell; 2d is the air passage pressure ring; 2e is the partition plate; 2f is the receiving panel; 3 is the transducer; 3a is the piezoelectric vibrator; 4 is the amplitude transformer; 5 is the conductive assembly; 5a is the conductive ring; 5b is the conductive ring bracket; 6 is the bearing; 7 is the bearing cooling air passage; 7a is the first bearing cooling channel; 7b is the second bearing cooling channel; 8 is the flow passage; 9 is the vent hole; 10 is the flow conduit; 11 is the first air inlet channel; 12 is the air guide column; 13 is the transducer cooling channel; 14 is the insulating component; 15 is the cavity; 17 is the first gap channel; 18 is the temperature controller; 19 is the opening; 20 is the first slot. 21. Second slot; 22. First end cap; 23. Second end cap; 24. Exhaust port; 25. First air guide pipe; 26. Second air guide pipe; 27. Air jet nozzle; 28. Second air intake channel; 29. ​​First housing; 30. Second housing; 31. Exhaust channel; 32. Exhaust port; 33. Housing cavity; 34. Air jet nozzle; 35. Cutting tool; 36. Positioning groove; 36a. Connecting port; 37. First positioning element; 38. Second positioning element; 38a. Limiting block; 38b. Positioning post; 38c. Inclined surface; 39. First elastic element; 40. First limiting groove; 40a. Limiting flange; 41. Second elastic element; 42. Second limiting groove; 43. Clearance space; 44. Supply seat; 45. Receiving part; 46. Power supply part; 47. Switch assembly; 48. Nozzle; 49. Second gap channel. Detailed Implementation

[0050] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0051] In the description of this utility model, it should be understood that when an element is referred to as "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. The terms "mounted," "connected," and "attached" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0052] In the description of this utility model, it should be understood that the terms "height," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0054] Example

[0055] like Figure 1-19 As shown, this utility model embodiment provides an ultrasonic scalpel handle 100, which includes a scalpel body 1a, a transducer housing 1b, and an outer housing assembly 2. The side of the ultrasonic scalpel handle 100 connected to the processing tool 35 is called the front side / front end / forward side, and the opposite side is called the rear side / rear end / rear side. The front end of the scalpel body 1a is connected to the rear end of the transducer housing 1b, thereby forming the scalpel handle body 1. An inner cavity 1b1 is provided inside the transducer housing 1b to accommodate the transducer 3.

[0056] Understandably, the transducer 3 generally includes a piezoelectric vibrator 3a, used to convert electromagnetic energy into mechanical energy. The amplitude transformer 4 mounted at its front end is a component used to amplify the mechanical amplitude. Generally, the piezoelectric vibrator 3a is installed in the inner cavity 1b1, while the amplitude transformer 4 extends from the inner cavity 1b1 to the front side of the transducer housing 1b, connecting to the machining tool 35. The specific configuration of the transducer 3 can be determined according to the application scenario of the ultrasonic tool holder 100 and the target to be processed, and will not be elaborated here.

[0057] The performance of transducer 3 is closely related to its size, such as the size of piezoelectric vibrator 3a. Piezoelectric vibrator 3a is installed inside the inner cavity 1b1 of transducer housing 1b. Therefore, the size of the inner cavity 1b1 inside transducer housing 1b generally reflects the performance of transducer 3 assembly. Changing the size of inner cavity 1b1 will affect the performance of transducer 3 assembly, such as output power.

[0058] It should be noted that the power supply methods for transducer 3 mainly include contact and non-contact types. Contact types generally use slip ring power supply, while non-contact types generally use wireless transmission components. Below, this embodiment will use a contact-type slip ring structure as the conductive component 5 to further describe the structure of the ultrasonic scalpel handle 100 in this embodiment.

[0059] The blade body 1a and the transducer housing 1b can be an integral connection structure or a detachable connection structure. The connection point between the blade body 1a and the transducer housing 1b is the mounting part 1c. It should be noted that, depending on the connection and fit between the blade body 1a and the transducer housing 1b, the outer diameter of the mounting part 1c can be smaller than the outer diameter of the blade body 1a adjacent to the mounting part 1c and the outer diameter of the transducer housing 1b adjacent to the mounting part 1c, or it can be equal to the outer diameter of the blade body 1a or the outer diameter of the transducer housing 1b.

[0060] As an example of this embodiment, refer to Figure 1-6 A portion of the blade body 1a is detachably connected to a portion of the transducer housing 1b, forming a mounting portion 1c. This mounting portion 1c can include a portion of the blade body 1a or a portion of the transducer housing 1b. Furthermore, the outer diameter of the mounting portion 1c is smaller than the outer diameter of the transducer housing 1b adjacent to it. The mounting portion 1c can be integrally formed with the blade body 1a or with the transducer housing 1b. Alternatively, the mounting portion 1c can be independent of both the blade body 1a and the transducer housing 1b, meaning it can be detachably connected to both the blade body 1a and the transducer housing 1b.

[0061] The conductive component 5 is sleeved on the mounting portion 1c of the tool holder body 1. As an example of this embodiment, the conductive component 5 includes a conductive ring 5a electrically connected to the transducer 3. The outer diameter of the conductive ring 5a is less than or equal to the outer diameter of the transducer housing 1b adjacent to the mounting portion 1c. In this way, the outer diameter of the conductive ring 5a can be effectively reduced. When other conductive elements that can be matched with the conductive ring 5a slide relative to each other on the outer periphery of the conductive ring 5a, at the same rotational speed, the linear velocity of the conductive ring 5a sleeved on the mounting portion 1c can be significantly reduced compared to the conductive ring 5a directly mounted on the outer periphery of the transducer housing 1b. As a result, the conductive ring 5a can work at a relatively high rotational speed, and the frictional heat generated by the conductive ring 5a is reduced, thereby improving the service life of the conductive component 5.

[0062] Considering that transducer 3 is prone to overheating during operation, which may affect the normal operation of ultrasonic scalpel holder 100, refer to Figure 1-18 In this embodiment, the ultrasonic scalpel handle 100 is also equipped with a housing assembly 2. The housing assembly 2 is sleeved on the outer periphery of the transducer housing 1b via a bearing 6. The housing assembly 2 is provided with a bearing cooling air passage 7 and a flow passage 8 that are interconnected. The bearing cooling air passage 7 is arranged on the outer periphery of the bearing 6 and is connected to an external air source. The flow passage 8 is arranged on the rear side of the bearing cooling air passage 7 and extends to the rear end of the transducer housing 1b to connect to the interior of the transducer housing 1b, that is, to the inner cavity 1b1.

[0063] The bearing cooling air passage 7 needs to be connected to an external air source, usually using an air pipe or air channel. To prevent the air pipe or air channel from tangling during the high-speed rotation of the ultrasonic scalpel handle 100, the outer shell assembly 2 generally remains stationary relative to the scalpel body 1a and the transducer housing 1b. Therefore, the outer shell assembly 2 uses a bearing 6 as the connection structure for assembly, with the bearing 6 fitted onto the outer periphery of the transducer housing 1b. Moreover, during the high-speed rotation of the ultrasonic scalpel handle 100, the bearing 6 easily generates a large amount of heat, causing it to overheat and affecting its service life. Therefore, in this embodiment, the ultrasonic scalpel handle 100 utilizes the bearing cooling air passage 7 to introduce gas, allowing the gas to flow to the outer periphery of the bearing 6 for the first heat exchange, carrying away the heat from the bearing 6 and thus reducing its temperature and achieving cooling. The cold air that has undergone the first heat exchange with the bearing 6 flows further to the flow channel 8 and reaches the rear end of the transducer housing 1b through the flow channel 8, entering the interior of the transducer housing 1b. Subsequently, the gas that has undergone the first heat exchange with the bearing 6 will undergo a second heat exchange with the transducer 3 to cool the transducer 3.

[0064] The bearing cooling air passage 7 and the flow channel 8 can be implemented in various ways within the housing assembly 2. (See reference) Figure 3-4As an example of this embodiment, the outer casing assembly 2 includes a bearing retaining ring 2a, a lower cover plate 2b, an outer casing 2c, and an air passage retaining ring 2d. The bearing retaining ring 2a is arranged around the bearing 6 and is connected to the rear side of the outer ring of the bearing 6. The lower cover plate 2b is arranged around the bearing 6 and is connected to the outer periphery and front side of the outer ring of the bearing 6. The bearing retaining ring 2a is locked to the lower cover plate 2b to fix the outer casing assembly 2 to the outer ring of the bearing 6. The outer casing 2c surrounds the bearing retaining ring 2a. The ring 2a and the lower cover plate 2b are arranged to form a bearing cooling air passage 7 together with the bearing pressure ring 2a and the lower cover plate 2b; the air passage pressure ring 2d is arranged around the transducer housing 1b, and the flow passage 8 is formed in the air passage pressure ring 2d. The air passage pressure ring 2d is arranged on the rear side of the bearing pressure ring 2a, so that the flow passage 8 can be arranged on the rear side of the bearing cooling air passage 7. Furthermore, since the bearing cooling air passage 7 is surrounded by the bearing pressure ring 2a, the lower cover plate 2b and the housing 2c, the flow passage 8 can communicate with the bearing cooling air passage 7.

[0065] Understandably, the duration of gas residence within the bearing cooling air passage 7 affects the gas's heat dissipation efficiency on the bearing 6. Therefore, the bearing cooling air passage 7 can be configured with layered or spiral air passages to extend the gas's path through it. (Reference) Figure 3 , 9 11. As an example of this embodiment, the outer shell assembly 2 includes a partition 2e, which is arranged within the bearing cooling air passage 7 and surrounds the outer periphery of the bearing 6, thereby dividing the bearing cooling air passage 7 into a first bearing cooling channel 7a and a second bearing cooling channel 7b. Both the first bearing cooling channel 7a and the second bearing cooling channel 7b surround the bearing 6, and the first bearing cooling channel 7a is arranged behind the second bearing cooling channel 7b. Furthermore, the partition 2e is provided with a vent hole 9 that extends through the blade body 1a along its axial direction. The first bearing cooling channel 7a and the second bearing cooling channel 7b are connected through the vent hole 9, and the first bearing cooling channel 7a is connected to an external air source, while the second bearing cooling channel 7b is connected to a flow channel 8. Of course, in other examples, the external air source can also be connected to the second bearing cooling channel 7b. In this case, the first bearing cooling channel 7a is connected to the flow channel 8, which also allows the gas to flow in layers within the bearing cooling air passage 7. Of course, the direction of the vent 9 is not necessarily along the axial direction of the tool holder body 1, but can also be inclined to the axial direction of the tool holder body 1.

[0066] It should be noted that the partition 2e can be a structure independent of the bearing ring 2a and the lower cover plate 2b, or it can be composed of a portion of the bearing ring 2a and / or the lower cover plate 2b, for example, see reference. Figure 3 , 11In this example, the partition 2e is part of the structure of the lower cover plate 2b. It is connected to the outer periphery of the bearing 6 and located inside the outer casing 2c, so that the bearing cooling air passage 7 is divided into the first bearing cooling channel 7a and the second bearing cooling channel 7b.

[0067] After the gas supplied by the external air source enters the first bearing cooling channel 7a, it cannot directly enter the second bearing cooling channel 7b due to the separation effect of the partition 2e. The gas flows along the first bearing cooling channel 7a to cool the bearing 6, and then enters the second bearing cooling channel 7b through the vent 9, flowing along the second bearing cooling channel 7b to cool the bearing 6 again. Of course, when multiple bearings 6 are arranged between the outer casing assembly 2 and the transducer housing 1b, the first bearing cooling channel 7a and the second bearing cooling channel 7b can cool different bearings 6 respectively.

[0068] It is understandable that, in order to ensure that gas can pass through the entire area of ​​the first bearing cooling channel 7a and the second bearing cooling channel 7b, the position of the external gas source entering the first bearing cooling channel 7a and the position of the vent hole 9 are preferably arranged symmetrically with respect to the bearing 6. Moreover, the connection position between the second bearing cooling channel 7b and the flow channel 8 and the position of the vent hole 9 are also preferably arranged symmetrically with respect to the bearing 6.

[0069] Understandably, since the second bearing cooling channel 7b is located in front of the first bearing cooling channel 7a, while the flow channel 8 is located behind the first bearing cooling channel 7a, a channel connecting the two needs to be configured within the housing assembly 2 for the second bearing cooling channel 7b to connect to the flow channel 8. (Reference) Figure 9 As an example of this embodiment, a flow conduit 10 is provided inside the outer casing assembly 2. The flow conduit 10 passes through the partition 2e and the bearing pressure ring 2a along the axial direction of the cutter body 1a, and one end of the flow conduit 10 is connected to the flow channel 8, while the other end of the flow conduit 10 is connected to the second bearing cooling channel 7b. Under the action of the flow conduit 10, the gas flowing in the second bearing cooling channel 7b can pass through the first bearing cooling channel 7a and enter the flow channel 8 without affecting the gas flowing in the first bearing cooling channel 7a.

[0070] Furthermore, the ultrasonic scalpel holder 100 may also be equipped with an air inlet channel within the housing assembly 2 to facilitate the entry of gas supplied from an external air source into the bearing cooling air passage 7. (Reference) Figure 9As an example of this embodiment, the outer shell assembly 2 is provided with a first air intake channel 11. The first air intake channel 11 extends from the rear side of the transducer housing 1b to the periphery of the transducer housing 1b and is connected to the bearing cooling air passage 7. Furthermore, the first air intake channel 11 is provided with a hollow air guide column 12. The air guide column 12 can move relative to the outer shell assembly 2 along the axial direction of the blade body 1a, and the air guide column 12 is connected to an external air source.

[0071] With the first air intake channel 11, bearing cooling air passage 7, and flow passage 8 connected in sequence, the gas supplied by the external air source can flow along the first air intake channel 11, bearing cooling air passage 7, and flow passage 8 to the rear end of the transducer housing 1b, and then enter the interior of the transducer housing 1b. In this gas flow path, the gas reaches the outer periphery of the bearing 6 from the first air intake channel 11, and then flows to the rear side of the transducer housing 1b via the outer periphery of the bearing 6, making full contact with the bearing 6 and effectively carrying away the heat generated by the rotation of the bearing 6.

[0072] It should be noted that the piezoelectric vibrator 3a is usually stacked inside the transducer housing 1b along the axial direction of the cutter body 1a. Therefore, when the gas enters the transducer housing 1b through the rear end of the transducer housing 1b, the gas flow direction and the stacking direction of the piezoelectric vibrator 3a are both parallel to the axial direction of the cutter body 1a. The gas can pass through the piezoelectric vibrator 3a in the direction of flow, reducing the energy loss of the gas inside the transducer housing 1b and enabling the gas to carry away more heat from the piezoelectric vibrator 3a in a timely manner.

[0073] Of course, a gas flow channel arranged along the axial direction of the cutter body 1a can also be configured inside the transducer housing 1b to guide the gas entering the transducer housing 1b through the piezoelectric vibrator 3a along the axial direction of the cutter body 1a. (Reference) Figure 3-4 As an example of this embodiment, a transducer cooling channel 13 is provided inside the transducer housing 1b, which is arranged along the axial direction of the cutter body 1a. The transducer cooling channel 13 is arranged on the outer periphery of the transducer 3 and is connected to the flow channel 8 at the rear end of the transducer housing 1b.

[0074] It should be noted that when the gap between transducer 3 and transducer housing 1b is small, electrical sparks can easily be generated inside transducer housing 1b. Therefore, an insulating structure can be arranged between transducer 3 and transducer housing 1b to prevent electrical sparks. (Reference) Figure 3-4 As an example of this embodiment, an insulating member 14 is provided inside the transducer housing 1b. The insulating member 14 is arranged on the outer periphery of the transducer 3 and spaced apart from the transducer 3, so that the transducer cooling channel 13 is formed between the insulating member 14 and the transducer 3.

[0075] The insulating element 14 is made of an insulating material, such as acetal. By using the insulating element 14 to form an insulating barrier between the transducer 3 and the transducer housing 1b, it is not necessary to wrap the outside of the transducer 3 with insulating cloth, which would affect the heat dissipation of the transducer 3. Furthermore, the gas can cool the transducer 3 using the transducer cooling channel 13 between the insulating element 14 and the transducer 3.

[0076] Because the transducer housing 1b has an insulating component 14 inside, the space on the outer periphery of the transducer 3 is reduced. The insulating component 14 is attached to / bonded to the inner wall of the transducer housing 1b, so that the gas can only flow along the transducer cooling channel 13. As a result, the channel area on the outer periphery of the transducer 3 is reduced, and the flow rate of the gas through the transducer 3 is further increased, so that the gas can carry away more heat from the transducer 3, thereby making up for the cooling loss during the second heat exchange between the gas and the transducer 3.

[0077] Of course, during operation of the ultrasonic scalpel holder 100, the conductive ring 5a will come into contact with the brush, generating heat through friction. Therefore, after prolonged operation, the conductive ring 5a will also generate a large amount of heat and dust, affecting its service life. Therefore, the ultrasonic scalpel holder 100 is also equipped with a gas channel to cool the conductive ring 5a and remove the dust generated during operation, thereby extending its service life.

[0078] refer to Figure 1-10 As an example of this embodiment, a conductive component 5 electrically connected to the transducer 3 is sleeved on the blade body 1a; the outer shell assembly 2 extends rearward to the outer periphery of the blade body 1a to form a cavity 15 to accommodate the conductive component 5, and the cavity 15 is connected to the flow channel 8 and to the outside of the outer shell assembly 2 to form a cooling air path for the conductive component.

[0079] The cavity 15 can also be implemented in various ways within the outer casing assembly 2. (See reference...) Figure 1-10 As an example of this embodiment, the outer casing assembly 2 further includes a receiving panel 2f, which covers the rear side of the outer casing 2c and, together with the outer casing 2c and the air passage pressure ring 2d, forms a cavity 15. The receiving panel 2f constitutes the rear sidewall of the cavity 15, the air passage pressure ring 2d constitutes the front sidewall of the cavity 15, and the outer casing 2c constitutes the outer sidewall of the cavity 15. The conductive component 5, disposed within the cavity 15, is fitted onto the mounting portion 1c and positioned on the side of the flow channel 8 facing the mounting portion 1c, allowing gas flowing through the flow channel 8 to also flow to the conductive component 5.

[0080] The conductive component 5 typically also includes a conductive ring bracket 5b. It should be noted that the conductive ring 5a is mounted to the rear end of the transducer housing 1b via the conductive ring bracket 5b, facilitating electrical connection between the conductive ring 5a and the transducer 3. Therefore, in this embodiment, the connection point between the flow channel 8 and the cavity 15 can be located between the end of the air passage pressure ring 2d facing the mounting portion 1c and the conductive ring bracket 5b, i.e. Figure 10 The first gap channel 17 shown allows gas to flow along the flow channel 8 to the rear end of the transducer housing 1b, where it can be diverted into the cavity 15 to cool the conductive component 5. Of course, to facilitate the discharge of gas from the cavity 15, a second gap channel 49 can be provided between the outer housing assembly 2 and the blade body 1a. This gap channel connects the cavity 15 and the outside of the outer housing assembly 2, allowing the gas in the cavity 15 to be discharged to the outside.

[0081] In addition to gas cooling, this ultrasonic scalpel holder 100 is also equipped with a temperature monitoring function to prevent damage to the transducer 3 due to overwork. (Reference) Figure 4 As an example of this embodiment, a temperature controller 18 is provided inside the transducer housing 1b to monitor the temperature inside the transducer housing 1b; the temperature controller 18 is electrically connected to the conductive component 5 and the transducer 3.

[0082] For example, a temperature control switch, acting as a temperature controller 18, is installed inside the transducer housing 1b and connected to the positive terminal of the conductive component 5 and the positive terminal of the transducer 3. When the internal temperature of the transducer housing 1b reaches a specified value, the temperature control switch disconnects the circuit between the conductive component 5 and the transducer 3, causing the transducer 3 to stop operating and triggering an alarm. When the internal temperature of the transducer housing 1b falls below the specified value, the circuit between the conductive component 5 and the transducer 3 is restored. In this way, the temperature controller 18 can prevent the transducer 3 from being damaged due to overheating caused by prolonged operation or other unforeseen circumstances.

[0083] In the structure of the ultrasonic scalpel holder 100, an amplitude transformer 4 is typically connected to the front end of the transducer housing 1b, and the cutter 35 is connected to the front end of the amplitude transformer 4. The amplitude transformer 4 is used to increase the amplitude of the cutter 35. In order to assemble the amplitude transformer 4, the transducer housing 1b typically has an opening 19 facing the front side of the cutter body 1a, and the amplitude transformer 4 extends into the interior of the transducer housing 1b through the opening 19.

[0084] The fixing methods between the amplitude transformer 4 and the transducer housing 1b are quite varied. For example, the amplitude transformer 4 and the transducer housing 1b can be fixed together using set screws and end caps. (Reference) Figure 12As an example of this embodiment, the circumferential surface of the amplitude rod 4 is provided with a plurality of first slots 20 located in the opening 19; and a first end cap 22 and a second end cap 23 are connected in the opening 19, wherein the first end cap 22 cooperates with the transducer housing 1b to form a second slot 21 corresponding to the first slots 20, and the opening of the second slot 21 is arranged facing the amplitude rod 4; the second end cap 23 is connected to the front side of the first end cap 22 and is connected and fixed to the inner wall of the transducer housing 1b in the opening 19.

[0085] The first slot 20 has an opening facing the transducer housing 1b, and the second slot 21 has an opening facing the amplitude transformer 4. Thus, set screws (not shown in the figure) can be installed in the first slot 20 and the second slot 21, allowing the amplitude transformer 4 to engage with the opening 19 of the transducer housing 1b. Furthermore, the second end cap 23 is threadedly connected to the transducer housing 1b, thereby locking the first end cap 22 and the second end cap 23 into the opening 19 of the transducer housing 1b. Moreover, to increase the contact area between the set screw and the first slot 20, refer to... Figure 19 The cross-section of the first slot 20 can be circular, so that the connection surface between the set screw connected to the first slot 20 and the first slot 20 is a circumferential surface. Of course, in this case, the corresponding cross-section of the second slot 21 is also circular (not shown in the figure). It should be noted that in some ultrasonic scalpel holders 100, the bottom wall of the second slot 21 may be omitted, that is, the groove structure is not provided on the first end cap 22, so that the second slot 21 is formed only by the groove structure of the transducer housing 1b. Moreover, the second slot 21 can be replaced by a mounting hole. Since the contact surface between the set screw and the mounting hole and the first slot 20 is large, the set screw will not fall out of the mounting hole.

[0086] Furthermore, the second end cap 23 may have mounting holes for mounting set screws arranged along the axis of the cutter body 1a. The set screws are used to press the first end cap 22 against the amplitude transformer 4, thereby assembling and fixing the amplitude transformer 4. Moreover, since the transducer 3 and the transducer housing 1b need to rotate at high speed with the cutter body 1a, the transducer structure composed of the transducer 3 and the transducer housing 1b has high requirements for dynamic balance. The set screws on the second end cap 23 can be used to adjust the dynamic balance of the transducer section relatively easily.

[0087] During the cutting or drilling process of materials by the ultrasonic squeegee 100, the tool 35 generates a large amount of heat, causing the material temperature to rise. This leads to the melting of adhesives inside the material, which then adhere to the tool 35, or chips generated during processing, which also stick to the tool 35, affecting subsequent processing results. Therefore, this ultrasonic squeegee 100 incorporates a cooling structure for the tool 35 to cool it during processing.

[0088] refer to Figure 1-12 and Figure 17 ,19 As an example of this embodiment, the amplitude transformer 4 is provided with an exhaust port 24 communicating with the interior of the transducer housing 1b to discharge the gas inside the transducer housing 1b; and the outer shell assembly 2 is connected with a first air guide pipe 25 and a second air guide pipe 26, wherein the first air guide pipe 25 extends toward the front end of the blade body 1a and communicates with an external air source; the second air guide pipe 26 is arranged circumferentially on the amplitude transformer 4 and communicates with the first air guide pipe 25, and the second air guide pipe 26 has an air jet port 27 communicating with the outside. Of course, the exhaust port 24 can also be provided on the transducer housing 1b.

[0089] Guided by the first air guide pipe 25 and the second air guide pipe 26, the cold air enters through the first air guide pipe 25 and flows along the axial direction of the cutter body 1a, and then flows along the circumference of the amplitude rod 4. The second air guide pipe 26 is preferably arranged around the circumference of the amplitude rod 4, and there are multiple air jets 27. The multiple air jets 27 are distributed along the arrangement path of the second air guide pipe 26. In this way, the cold air ejected through the air jets 27 can be blown from the circumference of the cutter 35 to the cutter 35, and fully cools all parts of the cutter 35.

[0090] Considering that the efficiency of the gas entering through the first air inlet channel 11 exchanging heat with the bearing 6 and transducer 3 before exchanging heat with the cutting tool 35 is relatively low, this ultrasonic scalpel holder 100 is also equipped with an air path structure independent of the first air inlet channel 11. (Reference) Figure 1-12 As an example of this embodiment, the outer shell assembly 2 is provided with a second air intake channel 28 that communicates with an external air source. The second air intake channel 28 is independent of the first air intake channel 11 and is connected to the first air guide pipe 25.

[0091] The second air intake channel 28 can be connected to the same external air source as the first air intake channel 11, or it can be connected to an independent external air source. In both cases, the second air intake channel 28 will always introduce cold air independently of the first air intake channel 11, allowing the cold air to flow along the first air guide pipe 25 and the second air guide pipe 26 to the jet nozzle 27. The jet nozzle 27 can be connected to a nozzle 48 arranged towards the cutting tool 35, so that the cold air introduced through the second air intake channel 28 can be directly blown onto the cutting tool 35 for the first heat exchange.

[0092] Since the gas blown out through the jet nozzle 27 is generally cryogenic gas, this ensures that the gas reaching the tool 35 can achieve the expected cooling effect. Of course, the first gas guide pipe 25 and the second gas guide pipe 26 need to be equipped with some protective and heat-insulating structures to ensure that the cryogenic gas can be maintained at a low temperature when flowing in the first gas guide pipe 25 and the second gas guide pipe 26, or to prevent the first gas guide pipe 25 and the second gas guide pipe 26 from being damaged, resulting in the leakage of cryogenic gas.

[0093] refer to Figure 1-12 17. As an example of this embodiment, the outer shell assembly 2 includes a first shell 29 and a second shell 30. The first shell 29 is spaced apart on the outer periphery of the transducer shell 1b, thereby forming an exhaust channel 31 between the first shell 29 and the transducer shell 1b. The exhaust channel 31 is connected to the exhaust port 24 and has an exhaust port 32 facing the front end. This part of the cold air can also cool the cutting tool 35. The second shell 30 is arranged on the outer periphery of the first shell 29, thereby forming a shell cavity 33 between the second shell 29 and the first shell 29 for accommodating the first air guide tube 25 and the second air guide tube 26. The shell cavity 33 is connected to an air jet port 34 that communicates with the outside. The air jet port 34 is connected to the air jet port 27.

[0094] It should be noted that the jet hole 34 is located at the front end of the second housing 30. The jet port 27 can pass through the jet hole 34 and be connected to the nozzle 48, or it can be connected only to the jet hole 34 to spray out cold air. Figure 17 In the middle, the hole adjacent to the jet hole 34 is used to connect the second housing 30 to the first housing 29.

[0095] In some ultrasonic scalpel handles 100, there may be multiple air jets 27, and the number of air jets 27 corresponds to the number of air jet holes 34. Multiple air jets 27 are distributed along the arrangement path of the second air guide tube 26, and the air jets 27 are connected to nozzles 48 through corresponding air jet holes 34.

[0096] Through the cooperation of the first housing 29 and the second housing 30, the cutting tool 35 of this ultrasonic scalpel holder 100 can exchange heat with two streams of cold air. One stream is the gas flowing to the exhaust port 32 via the bearing cooling gas path 7 and the transducer cooling channel 13; the other stream is the cold air flowing to the jet port 27 via the first air guide pipe 25 and the second air guide pipe 26. Under the cooling effect of the two streams of gas, the cutting tool 35 of this ultrasonic scalpel holder 100 and the material cut by the cutting tool 35 can be effectively cooled, thereby preventing the material from absorbing too much heat during the cutting process, which could cause the internal glue to melt or the chips to adhere to the cutting tool 35.

[0097] In addition, the cavity 33 of the casing can be filled with thermal insulation material to form an insulation layer (not shown in the figure) covering the first air guide tube 25 and the second air guide tube 26, so as to ensure that the cold air in the first air guide tube 25 and the second air guide tube 26 is maintained at a low temperature. Of course, the thermal insulation material can also assist in the connection and cooperation between the first casing 29 and the second casing 30. For example, the rear end of the second casing 30 is fixedly connected to the lower cover plate 2b, the first casing 29 is fixed inside the second casing 30 by the thermal insulation material, and in order to fix the first air guide tube 25, a support is provided inside the second casing 30, thereby fixing the first air guide tube 25 to the second casing 30.

[0098] When the ultrasonic tool holder 100 is in operation, the spindle of the machining tool is connected to the rear side of the tool body 1a, driving the tool body 1a to rotate. During the rotation of the tool body 1a, the outer shell assembly 2 remains stationary relative to the tool body 1a. However, since the tool body 1a can rotate relative to the outer shell assembly 2, after the tool body 1a is disengaged from the spindle, relative rotation will occur between the tool body 1a and the outer shell assembly 2. This causes the tool body 1a and the outer shell assembly 2 to deviate from their docking position with the spindle. Consequently, when the ultrasonic tool holder 100 is re-engaged, the air intake structure on the outer shell assembly 2 may not correspond to the air supply structure on the spindle side, or the power supply terminal structure arranged on the outer shell assembly 2 and electrically connected to the conductive component 5 may not correspond to the power supply terminal structure on the spindle side, thus preventing the machining tool from automatically changing tools. To address this issue, a limiting structure can be provided on the ultrasonic tool holder 100 to restrict the relative rotation between the tool body 1a and the outer shell assembly 2 when the tool body 1a is disengaged from the spindle, without affecting the relative rotation between the two during machining. The limiting structure includes a positioning component and an elastic element connected to the positioning component, which will be described in detail below.

[0099] refer to Figure 6 , 13 -16, 18, as an example of this embodiment, a positioning groove 36 is provided on the outer periphery of the blade body 1a, and the positioning groove 36 has a connecting port 36a facing outward to connect to the outside; the outer shell assembly 2 is sleeved on the blade body 1a, and the blade body 1a can rotate relative to the outer shell assembly 2. Of course, the positioning groove 36 can also be provided on the handle body 1, and the outer shell assembly 2 is sleeved on the handle body 1. That is, this limiting structure is also applicable to other handle structures, such as non-ultrasonic handles, ultrasonic handles with an integral structure of the blade body and transducer housing. Of course, for ultrasonic handles, this limiting structure is not only applicable to ultrasonic handles 100 with a wired transmission structure as used in this embodiment, but also applicable to ultrasonic handles with a wireless transmission structure for electrical signal transmission. In these handle structures, the working principle of the limiting structure restricting the relative rotation between the blade body 1a and the outer shell assembly 2 is the same as the working principle of the limiting structure in this embodiment.

[0100] The positioning component is disposed on the outer shell assembly 2, and the positioning component includes a first positioning member 37 and a second positioning member 38. The first positioning member 37 can be driven away from the blade body 1a, thereby disengaging the first positioning member 37 from the positioning groove 36. The second positioning member 38 abuts against the end of the first positioning member 37 away from the blade handle body 1, and can reciprocate along the axial direction of the blade body 1a. Furthermore, the second positioning member 38 moves toward the rear side of the blade body 1a, thereby pushing the first positioning member 37 toward the blade handle body 1, bringing the first positioning member 37 closer to the blade body 1a, thereby allowing the first positioning member 37 to extend into the positioning groove 36.

[0101] By setting the first positioning member 37 and the second positioning member 38, when the ultrasonic scalpel handle 100 is connected to the spindle, the second positioning member 38 can be squeezed and then move towards the front of the scalpel body 1a. The first positioning member 37 can be driven by other structures to move away from the positioning groove 36 and disengage from the positioning groove 36, so that the scalpel body 1a and the outer shell assembly 2 can rotate relative to each other. When the ultrasonic scalpel handle 100 is disengaged from the spindle, the second positioning member 38 can be restored and then move towards the rear of the scalpel body 1a, thereby pushing the first positioning member 37 to move in the opposite direction, so that the first positioning member 37 moves closer to the scalpel body 1a and extends into the positioning groove 36, thereby making the scalpel body 1a and the outer shell assembly 2 relatively stationary, thus achieving position locking.

[0102] The positioning groove 36 is typically arranged radially along the cutter body 1a, such that the connecting opening 36a also faces radially outward from the cutter body 1a. In this case, the first positioning member 37 preferably also enters the positioning groove 36 radially along the cutter body 1a to facilitate mating with the positioning groove 36.

[0103] There are various ways to form the positioning groove 36 on the cutter body 1a. For example, the cutter body 1a can have multiple extension blocks extending towards the transducer housing 1b on its end face facing the transducer housing 1b, and these extension blocks can be arranged at intervals to form the positioning groove 36 on the outer periphery of the cutter body 1a. Of course, from the perspective of processing convenience, in the direction in which the first positioning member 37 enters and exits the positioning groove 36, the outer contour of the connecting opening 36a is usually polygonal, such as a rectangle or a square. Correspondingly, the outer contour of the end of the first positioning member 37 facing the connecting opening 36a is also polygonal. This is beneficial for the first positioning member 37 to cooperate with the positioning groove 36 and lock the relative position of the cutter body 1a and the outer housing assembly 2.

[0104] Of course, to make the outer contour of the end of the first positioning member 37 facing the communication port 36a polygonal, it can be made by integral casting to form a polygonal contour of the outer contour of the end of the first positioning member 37 facing the communication port 36a. Alternatively, a structure with a polygonal outer contour, such as a limiting member with a polygonal outer contour, can be added to the end of the first positioning member 37 facing the communication port 36a to form a polygonal contour of the outer contour of the end of the first positioning member 37 facing the communication port 36a.

[0105] To drive the first positioning element 37 to move relative to the tool body 1a, the outer shell assembly 2 may be configured with a corresponding structure for driving the first positioning element 37. (See reference) Figure 13-1618. As an example of this embodiment, a first elastic member 39 is sleeved on the first positioning member 37, and one end of the first elastic member 39 away from the blade body 1a is connected to the outer shell assembly 2, and the other end of the first elastic member 39 is connected to the first positioning member 37. When the first positioning member 37 moves toward the blade body 1a, it can compress the first elastic member 39. In this way, when the first positioning member 37 moves toward the positioning groove 36, it can drive the first elastic member 39 to elastically deform, and when the first elastic member 39 elastically recovers, it can drive the first positioning member 37 away from the positioning groove 36, and make the end of the first positioning member 37 away from the handle body 1 abut against the second positioning member 38.

[0106] Of course, the first elastic element 39 may not be fitted onto the first positioning element 37. Instead, two first elastic elements 39 may be connected to the first positioning element 37. The two first elastic elements 39 are respectively arranged on the outer periphery of the first positioning element 37 and are symmetrically arranged relative to the first positioning element 37. In this way, the first positioning element 37 can be connected to the first elastic element 39, and the first elastic element 39 can provide the first positioning element with a force away from the blade body.

[0107] The first elastic element 39 can be a spring, used to apply a force to the first positioning element 37 away from the blade body 1a. The first elastic element 39 and the second positioning element 38 cooperate to provide a means for the reciprocating movement of the first positioning element 37: the second positioning element 38 moves towards the rear of the blade body 1a, allowing the first positioning element 37 to approach the blade body 1a, thus extending the first positioning element 37 into the positioning groove 36. During this process, the first positioning element 37 compresses the first elastic element 39, putting it in a compressed state, and the first elastic element 39 applies a force to the first positioning element 37 away from the blade body 1a. The second positioning element 38 moves towards the front of the blade body 1a, no longer applying a force close to the blade body 1a to the first positioning element 37. At this point, under the action of the first elastic element 39, the first positioning element 37 moves away from the blade body 1a, disengaging from the positioning groove 36, thus allowing the blade body 1a to rotate relative to the outer shell assembly 2.

[0108] To achieve the engagement of the first positioning element 37 and the second positioning element 38, a feasible solution is to use a structure in which a limiting block 38a engages with a positioning post 38b. (Reference) Figure 13-18 The second positioning member 38 includes a limiting block 38a and a positioning post 38b connected to each other. The positioning post 38b is arranged on the front side of the limiting block 38a, and the limiting block 38a is provided with a clearance space 43. The clearance space 43 is recessed towards the interior of the limiting block 38a, so that the end of the first positioning member 37 away from the tool holder body 1 can extend into the clearance space 43, thereby the first positioning member 37 can be driven to disengage from the positioning groove 36.

[0109] When the second positioning member 38 moves forward along the axial direction of the handle body 1, the limiting block 38a moves towards the front of the blade body 1a, and the end of the first positioning member 37 away from the handle body 1 extends into the clearance space 43, disengaging from the positioning groove 36. When the second positioning member 38 moves backward along the axial direction of the handle body 1, the positioning pin 38b moves towards the rear of the blade body 1a, abutting against the end of the first positioning member 37 away from the handle body 1, and pushing the first positioning member 37 towards the blade body 1a, causing the first positioning member 37 to extend into the positioning groove 36.

[0110] It should be noted that in this embodiment, the clearance space 43 surrounds the outer periphery of the limiting block 38a, making the outer diameter of the limiting block 38a smaller than the outer diameter of the positioning post 38b. With the cooperation of the limiting block 38a and the positioning post 38b, the second positioning member 38 can achieve its action cooperation with the first positioning member 37 in a relatively simple structure, making this limiting structure easy to maintain. Moreover, the relative action between the positioning post 38b and the first positioning member 37 allows the first positioning member 37 to extend into the positioning groove 36, resulting in relative stillness between the blade body 1a and the outer shell assembly 2, making this limiting structure simple in construction and easy to operate. Of course, in other blade holder structures, the clearance space 43 can also be arranged only at a local position on the outer periphery of the limiting block 38a, without needing to surround the limiting block 38a. For example, a groove extending axially along the blade body 1a can be opened on the outer periphery of the limiting block 38a, with the opening of the groove facing the first positioning member 37, which can also form a clearance space 43.

[0111] With the cooperation of the clearance space 43, when the second positioning member 38 moves toward the front of the blade body 1a, the first positioning member 37 can enter the clearance space 43 by utilizing the force of the first elastic member 39, so that the first positioning member 37 contacts the limiting block 38a. In this way, when the second positioning member 38 moves toward the rear of the blade body 1a, the positioning post 38b can squeeze the first positioning member 37, push the first positioning member 37 back, and then make the first positioning member 37 move toward the blade body 1a.

[0112] To facilitate the engagement of the first positioning element 37 with the limiting block 38a, refer to Figure 13-16 18. As an example of this embodiment, the outer periphery of the limiting block 38a is provided with an inclined surface 38c that is inclined to the axial direction of the cutter body 1a. As a component of the limiting block 38a, the inclined surface 38c is arranged on the front side of the limiting block 38a and is continuous with the outer periphery of the positioning post 38b. Furthermore, the inclined surface 38c gradually converges toward the limiting block 38a and connects to the clearance space 43.

[0113] With the cooperation of the inclined surface 38c, when the second positioning member 38 moves toward the rear end of the cutter body 1a, the inclined surface 38c can gradually push the first positioning member 37 into the cutter body 1a, so as to prevent the first positioning member 37 from getting stuck inside the clearance space 43.

[0114] In some tool holder structures, the portion connecting the positioning pin 38b and the first positioning member 37 can be configured as a point contact fit, making it easier for the positioning pin 38b to engage with the first positioning member 37. For example, as an example of this embodiment, the outer contour of the positioning pin 38b is cylindrical, and the outer surface of the end of the first positioning member 37 away from the tool holder body 1 is spherical. When the positioning pin 38b moves toward the rear side of the tool holder body 1, it can abut against the end of the first positioning member 37 away from the tool holder body 1, forming a point contact fit, and push the first positioning member 37 toward the tool holder body 1, causing the first positioning member 37 to extend into the positioning groove 36. It should be noted that due to machining errors in the preparation of the first positioning member 37 and the positioning pin 38b, the point contact fit formed between the first positioning member 37 and the positioning pin 38b, i.e., the tangential surface between the first positioning member 37 and the positioning pin 38b, may also be a tiny plane.

[0115] To drive the second positioning element 38 to move and ensure that the second positioning element 38 can perform its function, refer to Figure 13-16 18. As an example of this embodiment, the second positioning member 38 is connected to the second elastic member 41. The second elastic member 41 can be a spring, and the front end of the second elastic member 41 is connected to the outer shell assembly 2, and the rear end of the second elastic member 41 is connected to the second positioning member 38. This allows the second positioning member 38 to move towards the front of the blade body 1a, thereby compressing the second elastic member 41. In this way, when the rear side of the second positioning member 38 is compressed, causing the second positioning member 38 to move towards the front of the blade body 1a, the second elastic member 41 will be compressed by the second positioning member 38 and undergo elastic deformation. When the rear side of the second positioning member 38 is no longer compressed, the second elastic member 41 has the property of elastically returning to its normal state, thereby pushing the second positioning member 38 to move towards the rear of the blade body 1a along the axis of the blade body 1a.

[0116] It should be noted that the limiting structure is used to connect the ultrasonic scalpel handle 100 to the spindle. Therefore, when the ultrasonic scalpel handle 100 is connected to the spindle, the second positioning member 38 can be squeezed by the structure connected to the spindle side and move towards the front of the scalpel body 1a. When the ultrasonic scalpel handle 100 is removed from the spindle, the second positioning member 38 is no longer squeezed by the structure on the spindle side, and the second elastic member 41 can return to its normal state.

[0117] Furthermore, the first elastic element 39 is not subjected to force when the first positioning element 37 disengages from the positioning groove 36, and the second elastic element 41 is not subjected to force when the positioning post 38b abuts against the first positioning element 37. This ensures that when the ultrasonic scalpel handle 100 is engaged with the spindle for operation, the first elastic element 39 and the second elastic element 41 will not be in a state of tension / compression for an extended period. This reduces the resistance force on the elastic elements during the operation of the ultrasonic scalpel handle 100 and reduces the impact of the elastic elements on the outer housing assembly 2. Of course, to ensure that the first positioning element 37 and the second positioning element 38 can move into place, the first elastic element 39 and the second elastic element 41 can also be kept in a compressed state.

[0118] To facilitate the movement of the first positioning member 37 relative to the housing assembly 2, and to provide necessary protection for the first positioning member 37 and the second positioning member 38, a groove structure may be configured within the housing assembly. (See reference) Figure 13-16 18. As an example of this embodiment, the outer shell assembly 2 is provided with a first limiting groove 40. The first limiting groove 40 extends toward the outer periphery of the blade body 1a and is connected to the positioning groove 36. The first positioning member 37 is disposed in the first limiting groove 40 and can reciprocate within the first limiting groove 40 to extend into and out of the positioning groove 36.

[0119] When the first positioning member 37 reciprocates within the first limiting groove 40, the first elastic member 39 must engage with the first limiting groove 40 so that the first positioning member 37 can compress the first elastic member 39 during its movement toward the cutter body 1a. For this purpose, refer to... Figure 13-16 18. As an example of this embodiment, a limiting flange 40a extending inward is provided in the first limiting groove 40. The limiting flange 40a is arranged on the outer periphery of the first positioning member 37. One end of the first elastic member 39 is connected to the side of the limiting flange 40a away from the blade body 1a, and the other end of the first elastic member 39 is connected to the first positioning member 37. In this way, with the cooperation of the limiting flange 40a, the first positioning member 37 can cooperate with the first elastic member 39 in the first limiting groove 40. As the first positioning member 37 moves toward the blade body 1a, the first elastic member 39 can be compressed by the first positioning member 37 and the limiting flange 40a.

[0120] Based on the presence of the first limiting groove 40 and the movement of the second positioning member 38, the outer shell assembly 2 also needs to be equipped with corresponding space for the movement of the second positioning member 38. (See reference) Figure 13-1618. As an example of this embodiment, a second limiting groove 42 is provided inside the outer shell assembly 2. The second limiting groove 42 is arranged along the axial direction of the blade body 1a and is connected to the end of the first limiting groove 40 away from the blade body 1a. Furthermore, a second elastic member 41 is provided in the second limiting groove 42, and one end of the second elastic member 41 is connected to the bottom of the second limiting groove 42. The other end of the second elastic member 41 is connected to the second positioning member 38, so that the second positioning member 38 can squeeze the second elastic member 41 when it moves towards the front side of the blade body 1a.

[0121] With the cooperation of the first limiting groove 40 and the second limiting groove 42, when the second positioning member 38 moves along the second limiting groove 42 toward the front side of the blade body 1a, the second elastic member 41 is compressed, and the first elastic member 39 drives the first positioning member 37 away from the blade body 1a, thereby causing the first positioning member 37 to disengage from the positioning groove 36, and the end of the first positioning member 37 away from the blade body 1a will extend into the second limiting groove 42 and abut against the limiting block 38a; when the second elastic member 41 in the compressed state of the second positioning member 38 is driven to move along the second limiting groove 42 toward the rear side of the blade body 1a, the second positioning member 38 will push the first positioning member 37 back into the first limiting groove 40 and close to the blade body 1a, thereby causing the first positioning member 37 to extend into the positioning groove 36, at the same time, the first positioning member 37 will compress the first elastic member 39, so that the first elastic member 39 is in a compressed state.

[0122] Of course, the first positioning member 37 and the second positioning member 38 included in the limiting structure may not be set in the corresponding limiting groove. For example, the first positioning member 37 is connected to the rear end face of the outer shell assembly 2, and the front end of the second positioning member 38 is connected to the rear end face of the outer shell assembly 2 through the second elastic member 41. This can also achieve relative stillness and relative rotation between the blade body 1a and the outer shell assembly 2.

[0123] Based on the aforementioned ultrasonic shovel 100, this embodiment also provides an ultrasonic processing device, including the aforementioned ultrasonic shovel 100 and a supply seat 44, wherein a receiving part 45 is provided on the outer shell assembly 2, the receiving part 45 is used to receive electrical signals and transmit the electrical signals to the transducer 3 inside the shovel body 1a; a power supply part 46 is provided on the supply seat 44 that can be connected to the receiving part 45, and the supply seat 44 can squeeze the second positioning member 38, causing the second positioning member 38 to move toward the front side of the shovel body 1a, thereby causing the first positioning member 37 to disengage from the positioning groove 36.

[0124] In application, the ultrasonic scalpel holder 100 is mounted to the spindle. When the ultrasonic scalpel holder 100 is in place, the power supply unit 46 connects to the receiving unit 45, allowing electrical signals to be transmitted to the transducer 3. The power supply unit 46 is mounted in the supply seat 44 at the spindle end, and the receiving unit 45 is mounted on the housing assembly 2. Simultaneously, the supply seat 44 presses against the second positioning member 38, causing the second positioning member 38 to move towards the front of the scalpel body 1a. Consequently, the first positioning member 37 can be driven away from the scalpel body 1a by the first elastic member 39, thereby disengaging the first positioning member 37 from the positioning groove 36.

[0125] To ensure proper assembly of the ultrasonic scalpel holder 100 with the spindle, a corresponding touch switch can also be configured within the supply seat 44. For example, refer to... Figure 16 As an example of this embodiment, a switch assembly 47 is provided inside the supply seat 44. The switch assembly is located behind the second positioning member 38. When the ultrasonic scalpel handle 100 is installed to the front end of the spindle, the second positioning member 38 can press the switch assembly 47 to trigger it, indicating that the ultrasonic scalpel handle 100 and the spindle have been assembled in place. Furthermore, the triggering of the switch assembly 47 also proves that the receiving unit 45 and the power supply unit 46 are connected.

[0126] Based on the aforementioned ultrasonic processing equipment, this embodiment also provides a machine tool, including a machine tool body, a spindle disposed on the machine tool body, and the aforementioned tool holder or ultrasonic processing equipment, wherein the tool holder or ultrasonic processing equipment is installed at the front end of the spindle.

[0127] In summary, this utility model embodiment provides an ultrasonic tool holder 100, an ultrasonic processing device, and a machine tool. By setting up a bearing cooling air passage 7, the bearing 6 is cooled using the bearing cooling air passage 7, reducing the heat generation of the bearing 6 and preventing the bearing 6 from being overheated for a long time and affecting its service life. Moreover, the bearing cooling air passage 7 is connected to the rear end of the transducer housing 1b through the flow channel 8, which allows the airflow of the bearing cooling air passage 7 to enter the interior of the transducer housing 1b in the flow direction and pass through the transducer 3 along the axial direction of the tool body 1a, thereby ensuring the flow velocity of the airflow in the transducer housing 1b and avoiding the loss of flow velocity caused by the airflow turning in the transducer housing 1b.

[0128] Furthermore, the ultrasonic scalpel handle 100 of this invention, by setting up an independent first air intake channel 11 and a second air intake channel 28, allows the bearing cooling air path 7 and the first air guide pipe 25 to have independent air intake without interference. In this way, the ultrasonic scalpel handle 100 of this invention can independently supply air to the transducer 3 and the cutter 35 according to the heat generation of the transducer 3 and the cutter 35, respectively, thereby achieving independent cooling of the transducer 3 and the cutter 35.

[0129] Furthermore, the ultrasonic scalpel handle 100 of this utility model is provided with a first positioning member 37 and a second positioning member 38, so that the ultrasonic scalpel handle 100 can move toward the scalpel body 1a and extend into the positioning groove 36 through the first positioning member 37 when it is detached from the spindle, so that the relative position of the scalpel body 1a and the outer shell assembly 2 is fixed. In this way, when the ultrasonic scalpel handle 100 is connected to the spindle, the first positioning member 37 can disengage from the positioning groove 36, so that the scalpel body 1a can rotate relative to the outer shell assembly 2 without affecting the normal operation of the ultrasonic scalpel handle 100.

[0130] Furthermore, the ultrasonic scalpel handle 100 of this utility model connects the first elastic element 39 to the outer shell assembly 2, and the first elastic element 39 is not subjected to force when the first positioning element 37 disengages from the positioning groove 36. This ensures that when the ultrasonic scalpel handle 100 is engaged with the spindle for operation, the first elastic element 39 will not be in a state of tension / compression for a long time, which can reduce the resistance of the first elastic element 39 during the operation of the ultrasonic scalpel handle 100 and reduce the impact of the first elastic element 39 on the outer shell assembly 2.

[0131] This utility model also provides an ultrasonic processing equipment and machine tool, which uses the aforementioned ultrasonic tool holder 100 and has the aforementioned beneficial effects of the ultrasonic tool holder 100.

[0132] The above description is only a preferred embodiment of the present utility model. 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 the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A shank characterized in that, The utility model relates to a cutting tool handle, comprising: a handle body provided with a positioning groove on the outer periphery thereof; an outer housing assembly sleeved on the handle body and capable of rotating relative to the outer housing assembly; a positioning assembly provided on the outer housing assembly and comprising a first positioning member and a second positioning member, wherein the first positioning member is capable of being driven away from the handle body so as to be disengaged from the positioning groove; the second positioning member is in abutment with one end of the first positioning member away from the handle body, is capable of reciprocating along the axial direction of the handle body, and is capable of moving towards the rear side of the handle body to push the first positioning member towards the handle body so as to make the first positioning member extend into the positioning groove.

2. The tool holder according to claim 1, characterized in that a first elastic member is connected to the first positioning member, one end of the first elastic member close to the handle body is connected to the outer housing assembly, and the other end of the first elastic member is connected to the first positioning member, the movement of the first positioning member towards the positioning groove can cause the first elastic member to elastically deform, and the elastic recovery of the first elastic member can cause the first positioning member to move away from the positioning groove and abut against the second positioning member at one end thereof away from the handle body.

3. The tool holder according to claim 2, characterized in that The first elastic member is sleeved on the first positioning member.

4. The tool holder according to claim 1, wherein The second positioning member further comprises a positioning column and a limiting block connected to each other, the positioning column is arranged on the front side of the limiting block, the limiting block is provided with a clearance, the clearance is recessed towards the inside of the limiting block, one end of the first positioning member away from the handle body can extend into the clearance, so that the first positioning member can be disengaged from the positioning groove; and the positioning column is capable of abutting against one end of the first positioning member away from the handle body and pushing the first positioning member towards the handle body so as to make the first positioning member extend into the positioning groove when the positioning column moves towards the rear side of the handle body.

5. The tool holder according to claim 4, characterized in that The outer periphery of the limiting block is provided with an inclined surface inclined to the axial direction of the handle body, the inclined surface is arranged on the front side of the limiting block and is continuous with the outer periphery of the positioning column, and the inclined surface gradually converges towards the rear side of the limiting block and communicates with the clearance.

6. The tool holder according to claim 4, wherein The outer contour of the positioning column is a cylinder, the outer surface of one end of the first positioning member away from the handle body is a spherical surface, and the positioning column is capable of abutting against one end of the first positioning member away from the handle body to form point contact and pushing the first positioning member towards the handle body so as to make the first positioning member extend into the positioning groove when the positioning column moves towards the rear side of the handle body.

7. The tool holder according to claim 1, wherein The second positioning member is connected with a second elastic member, one end of the second elastic member is fixedly connected with the outer shell assembly, the other end of the second elastic member abuts against the second positioning member, the second positioning member moving towards the front side of the shank body can drive the second elastic member to elastically deform, and the elastic recovery of the second elastic member can drive the second positioning member to move towards the rear side of the shank body.

8. The tool holder according to claim 2, wherein The outer shell assembly is provided with a first limiting groove, the first limiting groove is arranged extending towards the shank body from the outer circumferential side of the shank body, and is communicated to the positioning groove, and The first positioning member is arranged in the first limiting groove and can reciprocate in the first limiting groove to extend into and out of the positioning groove.

9. The tool holder according to claim 8, characterized in that The first limiting groove is provided with a limiting flange extending towards the inside, the limiting flange is arranged on the outer circumferential side of the first positioning member, and one end of the first elastic member close to the shank body is connected to the limiting flange.

10. The tool holder according to claim 8, wherein The outer shell assembly is further provided with a second limiting groove, the second limiting groove is arranged along the axial direction of the shank body, and is communicated to one end of the first limiting groove away from the shank body, and The second positioning member is arranged in the second limiting groove and can reciprocate in the second limiting groove.

11. The tool holder according to claim 1, wherein The positioning groove has a communicating port towards the outside to communicate with the outside, in the direction of the first positioning member entering and exiting the positioning groove, the outer contour of the communicating port is polygonal, and the outer contour of the end of the first positioning member towards the communicating port is polygonal, or the end of the first positioning member towards the communicating port is provided with a limiting member with a polygonal outer contour.

12. A machine tool, characterized by The machine tool comprises a machine tool body, a main shaft arranged on the machine tool body, and a tool shank according to any one of claims 1-11, the tool shank being mounted on the front end of the main shaft.

13. Machine tool according to claim 12, characterized in that The main shaft is provided with a switch assembly, the switch assembly is located at the rear side of the second positioning member, and when the first positioning member is out of the positioning groove, the second positioning member can press the switch assembly to trigger the switch assembly.

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