An ultrasonic cutting tool

Abstract

The utility model relates to multifunctional cutting tool technical field, specifically disclose a kind of ultrasonic cutting tool, power pack is installed in shell, ultrasonic generator and battery component electrically connected and can produce the high-frequency current of ultrasonic frequency, transducer connects ultrasonic generator and amplifier, transducer can convert high-frequency current into high-frequency vibration, amplifier can amplify and output high-frequency vibration, the output end of amplifier includes stem portion and shaft sleeve portion, one end of stem portion is fixedly connected to eccentric side of shaft sleeve portion and the connecting region between both can occur elastic deformation, the axial direction of stem portion and the axial direction of shaft sleeve portion are perpendicular;Output assembly includes shaft portion and clamping portion, shaft portion is fixedly inserted in shaft sleeve portion, the axis of shaft portion coincides with the axis of shaft sleeve portion, clamping portion is fixedly connected with shaft portion;Working head is located outside shell, working head is fixed to clamping portion, and working head can swing around shaft portion. Thus, the tool cuts without noise, without vibration, without dust.

Description

Technical Field

[0001] This utility model relates to the field of multifunctional cutting tools, and in particular to an ultrasonic cutting tool. Background Technology

[0002] In the field of materials processing, traditional cutting technologies such as mechanical blades, laser, or waterjet cutting still dominate. Handheld tools generally employ multi-functional cutting tools. Mechanical cutting relies on the sharp edge of the cutting head and immense physical pressure. When cutting soft, sticky, or elastic composite materials, it is prone to problems such as material deformation, edge fraying, delamination, or blade sticking. Furthermore, the cut quality is closely related to the wear of the cutting head, resulting in high maintenance costs. While laser cutting offers high precision, it has limitations such as a large heat-affected zone, the potential generation of harmful fumes, expensive equipment, and difficulty in processing certain highly reflective materials. Waterjet cutting, on the other hand, suffers from drawbacks such as bulky equipment, wet cutting pollution, high operating noise, and tapered cuts.

[0003] Therefore, there is an urgent need for an ultrasonic cutting tool to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic cutting tool to solve problems such as high noise, high dust, high vibration, and difficulty in holding during cutting operations.

[0005] This utility model provides an ultrasonic cutting tool, which includes:

[0006] case;

[0007] Battery components;

[0008] A power assembly, installed within the aforementioned housing, includes an ultrasonic generator, a transducer, and an amplifier. The ultrasonic generator is electrically connected to the aforementioned battery assembly and is capable of generating a high-frequency current at the ultrasonic frequency. The transducer connects the ultrasonic generator and the amplifier, and is capable of converting the high-frequency current at the ultrasonic frequency into high-frequency vibration at the ultrasonic frequency. The amplifier is capable of amplifying and outputting the high-frequency vibration at the ultrasonic frequency. The output end of the amplifier includes a rod and a bushing. One end of the rod is fixed to the eccentric side of the bushing, and the connection area between the two is capable of elastic deformation. The axial direction of the rod is perpendicular to the axial direction of the bushing.

[0009] The output component includes a rotating shaft and a clamping part. The rotating shaft is fixedly inserted into the bushing part. The axis of the rotating shaft coincides with the axis of the bushing part. The clamping part is fixedly connected to the rotating shaft.

[0010] The working head is located outside the housing and is fixed to the clamping part. The working head can swing around the rotating shaft.

[0011] As a preferred technical solution for the ultrasonic cutting tool, the shaft is connected to the housing via a bearing.

[0012] As a preferred technical solution of the ultrasonic cutting tool, the clamping part includes a first pressure plate, a second pressure plate and a threaded fastener. The first pressure plate is fixed to the rotating shaft part, and the shank of the working head is clamped between the first pressure plate and the second pressure plate. The first pressure plate and the second pressure plate are connected by the threaded fastener.

[0013] As a preferred technical solution of the ultrasonic cutting tool, the housing includes a head, a gripping part and a tail, the head, the gripping part and the tail are fixed in sequence along the length direction, the output component is installed on the head, the power component is installed on the gripping part and the battery component is installed on the tail.

[0014] As a preferred technical solution for the aforementioned ultrasonic cutting tool, a clearance hole is provided at the tail end, and the output end of the battery assembly is connected to the input end of the ultrasonic generator through the clearance hole.

[0015] As a preferred technical solution of the ultrasonic cutting tool, it includes a first button, which is installed on the grip and electrically connected to the ultrasonic generator for controlling the opening and closing of the ultrasonic generator.

[0016] As a preferred technical solution for the ultrasonic cutting tool, a second button is also included. The second button is installed on the grip and is electrically connected to the ultrasonic generator for adjusting the output power of the ultrasonic generator.

[0017] As a preferred technical solution for the ultrasonic cutting tool, it further includes a display light assembly, which is installed at the head or the tail and is electrically connected to the ultrasonic generator to display the output power of the ultrasonic generator.

[0018] As a preferred technical solution for the aforementioned ultrasonic cutting tool, the battery assembly is detachably connected to the aforementioned housing.

[0019] As a preferred technical solution for the aforementioned ultrasonic cutting tool, the battery assembly is installed inside the housing and electrically connected to an external power source via a charging port.

[0020] The ultrasonic cutting tool provided by this utility model has at least the following beneficial effects:

[0021] This application provides an ultrasonic cutting tool, including a housing, a battery assembly, a power assembly, and a working head. The power assembly is installed inside the housing and includes an ultrasonic generator, a transducer, and an amplifier. The ultrasonic generator is electrically connected to the battery assembly and can generate a high-frequency current at the ultrasonic frequency. The transducer connects the ultrasonic generator and the amplifier, converting the high-frequency current into high-frequency vibrations at the ultrasonic frequency. The amplifier amplifies and outputs these high-frequency vibrations. The output end of the amplifier includes a rod and a sleeve. One end of the rod is fixed to the eccentric side of the sleeve, and the connection area between the two is capable of elastic deformation. The axial direction of the rod is perpendicular to the axial direction of the sleeve. The output assembly includes a rotating shaft and a clamping part. The rotating shaft is fixedly inserted into the sleeve, and its axis coincides with the axis of the sleeve. The clamping part is fixedly connected to the rotating shaft. The working head is located outside the housing and fixed to the clamping part. The working head can swing around the rotating shaft.

[0022] For example, the housing provides a mounting platform for the power assembly. The battery pack acts as a power source, supplying power to the power assembly. The power assembly includes an ultrasonic generator, a transducer, and an amplifier. The ultrasonic generator draws electrical energy from the battery pack and converts the DC power into high-frequency electrical energy. The high-frequency electrical energy is input to the transducer, which, based on the piezoelectric ceramic effect, converts the received high-frequency electrical energy into mechanical vibration of the same frequency. The mechanical vibration is input to the amplifier, which mechanically amplifies the minute vibration amplitude generated by the transducer to achieve the required amplitude for cutting. The amplifier includes a rod and a bushing. The bushing has an insertion hole along its axis. One end of the rod is fixedly connected to the outer peripheral wall of the bushing, and the extension line of the rod's axis does not intersect with the axis of the bushing. The connection area between the two can undergo elastic deformation. When the amplifier is running, the rod vibrates along its axis, which in turn causes the bushing to rotate slightly around its own axis. The shaft of the output component is fixedly inserted into the bushing. The bushing can swing the output component around its own axis, which in turn causes the working head to swing slightly. The swing direction is parallel to the cutting direction to cut the material.

[0023] Thus, compared to traditional power tools, this tool operates without noise, vibration, or dust during cutting. It also performs multiple functions such as cutting, grinding, and welding. Specifically, the high-frequency vibration causes fatigue in the material's molecular structure, reducing its mechanical strength and making it easier to separate. The resulting cuts are clean and smooth, effectively preventing material loosening, and because the cutting pressure is extremely low, it does not compress or pull flexible materials. The cutting process produces little or no chips, making it easy to clean, and because of the vibration cutting rather than hard friction, the working head experiences less wear and has a longer lifespan.

[0024] Furthermore, the amplifier's bushing and rod are fixedly connected, and the working head can swing within a small range by relying on the elastic deformation of their connection area. The rod and bushing can transmit most of the high-frequency vibrations of the ultrasonic waves to the working head to drive the working head to swing, resulting in high energy utilization. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the ultrasonic cutting tool in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the ultrasonic cutting tool (hidden housing and battery assembly) in an embodiment of the present invention. Figure One ;

[0027] Figure 3 This is a schematic diagram of the ultrasonic cutting tool (concealing another part of the housing and battery assembly) in an embodiment of the present invention. Figure One ;

[0028] Figure 4 This is a schematic diagram of the ultrasonic cutting tool (concealing another part of the housing and battery assembly) in an embodiment of the present invention. Figure Two .

[0029] In the picture:

[0030] 1. Shell; 11. Head; 12. Grip; 13. Tail;

[0031] 2. Battery assembly;

[0032] 3. Power assembly; 31. Ultrasonic generator; 32. Transducer; 33. Amplifier; 331. Rod; 332. Bushing;

[0033] 4. Output assembly; 41. Rotating shaft; 42. Clamping part; 421. First pressure plate; 422. Second pressure plate;

[0034] 5. Working head;

[0035] 61. First button; 62. Second button; 63. Indicator light group. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] like Figures 1 to 4This application provides an ultrasonic cutting tool, including a housing 1, a battery assembly 2, a power assembly 3, and a working head 5. The power assembly 3 is installed inside the housing 1 and includes an ultrasonic generator 31, a transducer 32, and an amplifier 33. The ultrasonic generator 31 is electrically connected to the battery assembly 2 and can generate a high-frequency current at the ultrasonic frequency. The transducer 32 connects the ultrasonic generator 31 and the amplifier 33, and can convert the high-frequency current at the ultrasonic frequency into high-frequency vibrations at the ultrasonic frequency. The amplifier 33 can amplify and output the high-frequency vibrations at the ultrasonic frequency. The output end of the amplifier 33 includes a rod portion 331 and a bushing portion. 332, one end of the rod 331 is fixed to the eccentric side of the bushing 332 and the connection area between the two can undergo elastic deformation, the axial direction of the rod 331 is perpendicular to the axial direction of the bushing 332; the output component 4 includes a rotating shaft 41 and a clamping part 42, the rotating shaft 41 is fixedly inserted into the bushing 332, the axis of the rotating shaft 41 coincides with the axis of the bushing 332, and the clamping part 42 is fixedly connected to the rotating shaft 41; the working head 5 is located outside the housing 1, the working head 5 is fixed to the clamping part 42, and the working head 5 can swing around the rotating shaft 41.

[0041] For example, housing 1 provides a mounting carrier for power assembly 3. Battery assembly 2 serves as a power source to power assembly 3. Power assembly 3 includes an ultrasonic generator 31, a transducer 32, and an amplifier 33. The ultrasonic generator 31 can obtain electrical energy from battery assembly 2 and convert the DC power from battery assembly 2 into high-frequency electrical energy. The high-frequency electrical energy is input into transducer 32, which, based on the piezoelectric ceramic effect, can convert the received high-frequency electrical energy into mechanical vibration of the same frequency. The mechanical vibration is input into amplifier 33, which can mechanically amplify the small vibration amplitude generated by transducer 32 to achieve the amplitude required for cutting. The amplifier 33 includes a rod 331 and a bushing 332. The bushing 332 has an insertion hole along its axis. One end of the rod 331 is fixedly connected to the outer peripheral wall of the bushing 332. The extension line of the axis of the rod 331 does not intersect with the axis of the bushing 332, and the connection area between the two can undergo elastic deformation. When the amplifier 33 is running, the rod 331 vibrates along its axis, thereby causing the bushing 332 to rotate a small range around its own axis. The rotating shaft 41 of the output component 4 is fixedly inserted into the bushing 332. The bushing 332 can swing the output component 4 around its own axis, thereby causing the working head 5 to swing a small range. The swing direction is parallel to the cutting direction to cut the material.

[0042] Thus, compared to traditional power tools, this tool operates without noise, vibration, or dust during cutting. It also performs multiple functions such as cutting, grinding, and welding. Specifically, the high-frequency vibration causes fatigue in the material's molecular structure, reducing its mechanical strength and making it easier to separate. The resulting cuts are clean and smooth, effectively preventing material loosening, and because the cutting pressure is extremely low, it does not compress or pull flexible materials. The cutting process produces little or no chips, making it easy to clean, and because of the vibration cutting rather than hard friction, the working head experiences less wear and has a longer lifespan.

[0043] Furthermore, the bushing portion 332 of the amplifier 33 is fixedly connected to the rod portion 331. Relying on the elastic deformation of the connection area, the working head 5 can swing within a small range. The rod portion 331 and the bushing portion 332 can transmit most of the high-frequency vibration of the ultrasonic frequency to the working head 5 to drive the working head 5 to swing, resulting in high energy utilization.

[0044] It should be noted that the DC power supply ranges from 3.6V to 120V. The high-frequency power supply ranges from 20kHz, 30kHz, 35kHz, or 40kHz.

[0045] Optionally, the rotating shaft 41 is connected to the housing 1 via a bearing.

[0046] For example, the bearing includes an inner ring, an outer ring, and rolling elements sandwiched between the two. The shaft portion 41 is inserted into the inner ring and is interference-fitted with the inner ring. The outer ring is interference-fitted with the housing 1. The bearing serves as a support for the shaft portion 41, reducing the cantilever length of the shaft portion 41, thereby maintaining the stability of the shaft portion 41 and the working head 5.

[0047] Optionally, the clamping part 42 includes a first pressure plate 421, a second pressure plate 422, and threaded fasteners. The first pressure plate 421 is fixed to the rotating shaft part 41, and the shank of the working head 5 is clamped between the first pressure plate 421 and the second pressure plate 422. The first pressure plate 421 and the second pressure plate 422 are connected by threaded fasteners. This arrangement facilitates the replacement of the working head 5.

[0048] Furthermore, threaded fasteners are inserted into the working head 5 to tighten the working head 5.

[0049] Optionally, the working head 5 is directly mounted on the amplifier 33 and is detachably connected to the amplifier 33.

[0050] For example, the working head 5 is threadedly connected to the amplifier 33, the tail end of the working head 5 has an internal threaded hole, the output end of the amplifier 33 is provided with an external thread, and the output end of the amplifier 33 is threadedly connected to the tail end of the working head 5.

[0051] Furthermore, in addition to the threads, the end face where the working head 5 and the amplifier 33 contact must have a smooth, flat mating surface perpendicular to the axis. This surface is the main load-bearing surface for transmitting ultrasonic energy, while the threads mainly serve to tighten and fix the surface.

[0052] For example, the working head 5 is connected to the conical surface of the amplifier 33, and both the output end of the amplifier 33 and the tail of the working head 5 are machined into precise conical surfaces. The working head 5 is pressed together by a locking nut, causing the two conical surfaces to fit tightly together.

[0053] Because the working head 5 is detachably connected to the amplifier 33, the working head 5 can be replaced with the corresponding type depending on the usage scenario and the object being cut. For example, the working head 5 can be a metal cutting blade, a wood cutting blade, a chisel, a triangular grinding head, a diamond grinding disc, and a semi-circular serrated blade, etc. By changing different blades, different functions such as cutting, grinding, and drilling can be achieved.

[0054] Optionally, the housing 1 includes a head 11, a grip 12, and a tail 13, which are fixed sequentially along the length direction. The output component 4 is installed on the head 11, the power component 3 is installed on the grip 12, and the battery component 2 is installed on the tail 13.

[0055] For example, the tail end of the head 11 is connected to the front end of the grip 12, and the front end of the tail 13 is connected to the rear end of the grip 12. Thus, the working head 5 and the battery assembly 2 are positioned on the front and rear sides of the grip 12, respectively, not on the same side of the grip 12, and are spaced far apart, so they do not interfere with each other and also provide balance. The grip 12 facilitates user carrying and holding of the ultrasonic cutting tool during operation.

[0056] For example, the head 11, the gripping part 12 and the tail 13 are integrally formed.

[0057] Optionally, the tail section 13 is provided with a clearance hole, through which the output end of the battery assembly 2 is connected to the input end of the ultrasonic generator 31.

[0058] Optionally, the ultrasonic cutting tool includes a first button 61, which is mounted on the grip 12 and electrically connected to the ultrasonic generator 31 for controlling the opening and closing of the ultrasonic generator 31.

[0059] For example, the power assembly 3 also includes a control unit. The first button 61 is electrically connected to the ultrasonic generator 31 through the control unit. The control unit controls the start and stop of the ultrasonic generator 31, thereby driving or stopping the working head 5 to process the workpiece.

[0060] Furthermore, the first button 61 can also control the gear switching function. When pressed and held, it can switch between power on and off. When the power is on, a short press can switch the gear.

[0061] Optionally, the ultrasonic cutting tool also includes a second button 62, which is mounted on the grip 12 and electrically connected to the ultrasonic generator 31 for adjusting the output power of the ultrasonic generator 31.

[0062] Optionally, the ultrasonic cutting tool also includes an indicator light assembly 63, which is mounted on the head 11 or the tail 13 and is electrically connected to the ultrasonic generator 31 to display the output power of the ultrasonic generator 31.

[0063] For example, the display light group 63 includes multiple LEDs, and different numbers of LEDs are lit to indicate the current output power of the ultrasonic generator 31.

[0064] Optionally, the battery assembly 2 can be detachably connected to the housing 1.

[0065] For example, the battery assembly 2 serves as an external power source for the power assembly 3 and is plugged into the housing 1. When the battery assembly 2 is low on power, it can be removed from the housing 1 and replaced with a fully charged battery assembly 2. This reduces the charging time of the ultrasonic cutting tool. Furthermore, the battery assembly 2 being mounted on the housing 1 makes the ultrasonic cutting tool easy to carry.

[0066] Furthermore, the battery assembly 2 is inserted into the housing 1, and at least a portion of the battery assembly 2 can be inserted into the housing 1. This reduces the overall size.

[0067] Optionally, a docking interface is provided on the side of the tail 13 of the housing 1 facing away from the working head 5. The battery assembly 2 includes a plug-in part and a snap-fit ​​part. The plug-in part is inserted into the docking interface along the length direction of the housing 1, and the snap-fit ​​part is snapped into the housing 1 within the docking interface. This arrangement facilitates the docking and installation of the battery assembly 2 and the housing 1.

[0068] Optionally, a groove is provided on the side of the tail section 13 facing away from the working head 5. The opening direction of the groove is parallel to the axis of the rotating shaft 41, and the battery assembly 2 is inserted into the groove on the side facing away from the working head 5. This arrangement facilitates the docking and installation of the battery assembly 2 and the housing 1.

[0069] Optionally, the battery assembly 2 is installed inside the housing 1 and electrically connected to an external power source via a charging port.

[0070] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An ultrasonic cutting tool, characterized in that, include: Shell (1); Battery assembly (2); A power assembly (3) is installed inside the housing (1). The power assembly (3) includes an ultrasonic generator (31), a transducer (32), and an amplifier (33). The ultrasonic generator (31) is electrically connected to the battery assembly (2) and can generate a high-frequency current at the ultrasonic frequency. The transducer (32) connects the ultrasonic generator (31) and the amplifier (33). The transducer (32) can convert the high-frequency current at the ultrasonic frequency into a high-frequency vibration at the ultrasonic frequency. The amplifier (33) can amplify and output the high-frequency vibration at the ultrasonic frequency. The output end of the amplifier (33) includes a rod (331) and a bushing (332). One end of the rod (331) is fixed to the eccentric side of the bushing (332), and the connection area between the two can undergo elastic deformation. The axial direction of the rod (331) is perpendicular to the axial direction of the bushing (332). The output component (4) includes a rotating shaft (41) and a clamping part (42). The rotating shaft (41) is fixedly inserted into the bushing part (332). The axis of the rotating shaft (41) coincides with the axis of the bushing part (332). The clamping part (42) is fixedly connected to the rotating shaft (41). The working head (5) is located outside the housing (1), and the working head (5) is fixed to the clamping part (42). The working head (5) can swing around the rotating shaft part (41).

2. The ultrasonic cutting tool according to claim 1, characterized in that, The rotating shaft (41) is connected to the housing (1) via a bearing.

3. The ultrasonic cutting tool according to claim 1, characterized in that, The clamping part (42) includes a first pressure plate (421), a second pressure plate (422) and a threaded fastener. The first pressure plate (421) is fixed to the rotating shaft part (41). The handle of the working head (5) is clamped between the first pressure plate (421) and the second pressure plate (422). The first pressure plate (421) and the second pressure plate (422) are connected by the threaded fastener.

4. The ultrasonic cutting tool according to claim 1, characterized in that, The housing (1) includes a head (11), a grip (12) and a tail (13), the head (11), the grip (12) and the tail (13) being fixed sequentially along the length direction, the output component (4) being mounted on the head (11), the power component (3) being mounted on the grip (12), and the battery component (2) being mounted on the tail (13).

5. The ultrasonic cutting tool according to claim 4, characterized in that, The tail (13) has a clearance hole, and the output end of the battery assembly (2) is connected to the input end of the ultrasonic generator (31) through the clearance hole.

6. The ultrasonic cutting tool according to claim 4, characterized in that, It also includes a first button (61), which is installed on the grip (12) and is electrically connected to the ultrasonic generator (31) for controlling the opening and closing of the ultrasonic generator (31).

7. The ultrasonic cutting tool according to claim 4, characterized in that, It also includes a second button (62), which is installed on the grip (12) and is electrically connected to the ultrasonic generator (31) for adjusting the output power of the ultrasonic generator (31).

8. The ultrasonic cutting tool according to claim 4, characterized in that, It also includes a display light group (63), which is installed on the head (11) or the tail (13). The display light group (63) is electrically connected to the ultrasonic generator (31) and is used to display the output power of the ultrasonic generator (31).

9. The ultrasonic cutting tool according to claim 1, characterized in that, The battery assembly (2) is detachably connected to the housing (1).

10. The ultrasonic cutting tool according to claim 1, characterized in that, The battery assembly (2) is installed inside the housing (1) and is electrically connected to an external power source through a charging port.

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