Ultrasonic knife handle

Abstract

The ultrasonic knife handle comprises a knife handle shell, an ultrasonic transducer and a secondary side unit, a cavity is formed in the front end of the knife handle shell, the ultrasonic transducer is fixedly connected to the front end of the knife handle shell, and the front side of the ultrasonic transducer is used for being connected with a knife for ultrasonic machining; the secondary side unit comprises an annular support and a secondary side magnetic core, the annular support is composed of a first annular part, a second annular part and an inner annular part, so that the section of the annular support is of a C-shaped structure with an outward opening, and the secondary side magnetic core is wound on the inner annular part connected between the first annular part and the second annular part; the annular support is arranged on the knife handle shell in a sleeving mode, the gap between the rear side of the annular support and the knife handle shell, the gap between the front side of the annular support and the ultrasonic transducer and the outer side of the annular support are filled with pouring glue, and the first annular part and / or the second annular part are / is provided with pouring glue inverted buckling grooves. According to the utility model, the risk that potting glue on the ultrasonic knife handle in a side surface electric energy wireless transmission mode is thrown out during high-speed rotation can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic machining technical field especially relates to a kind of ultrasonic tool shank. BACKGROUND

[0002] With the rise of new hard and brittle composite materials in recent years, the range of new hard and brittle composite materials is more and more widely used, and ultrasonic machining technology is considered to be one of the effective methods for processing hard and brittle composite materials. The ultrasonic tool shank basically adopts wireless transmission system, and the receiving coil and the magnetic core are fixed on the tool shank by epoxy resin packaging. Since the power supply part of the ultrasonic tool shank is in the form of wireless power transmission, the maximum diameter of the ultrasonic tool shank is much larger than that of the conventional ultrasonic tool shank, and the ultrasonic tool shank is in the tool magazine. There is an interference problem between the tool shank and the tool shank. The trend of miniaturization of the ultrasonic tool shank in terms of volume is becoming more and more obvious. Changing the transmission mode from wireless power transmission to side power wireless transmission can greatly reduce the volume of the ultrasonic tool shank, but the side power wireless transmission mode also brings the following safety hazards. The ultrasonic tool shank in the form of traditional ultrasonic tool shank wireless power transmission is sealed at the glue port along the axial direction of the tool shank, and there is no risk of epoxy resin falling off. The glue port of the ultrasonic tool shank in the form of side power wireless transmission is located at the peripheral circumferential surface of the tool shank, and there is a risk of epoxy resin being thrown out during high-speed rotation. Therefore, the side power wireless transmission urgently needs a special magnetic core structure to ensure the safety of the ultrasonic tool shank in the side power wireless transmission system.

[0003] The disclosure of the above background art content is only used to assist in understanding the concept and technical scheme of the utility model, and it does not necessarily belong to the prior art of the present patent application. In the absence of explicit evidence that the above content has been disclosed on the filing date of the present patent application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, the utility model provides an ultrasonic tool shank, which can solve the risk of epoxy resin being thrown out during high-speed rotation on the ultrasonic tool shank in the form of side power wireless transmission.

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

[0006] The utility model discloses an ultrasonic tool shank, which comprises a tool shank shell, an ultrasonic transducer and a secondary side unit, wherein,

[0007] A cavity is formed in the front end of the tool shank shell, the ultrasonic transducer is fixedly connected to the front end of the tool shank shell so that the rear end of the ultrasonic transducer is located in the cavity, and the front side of the ultrasonic transducer is used to connect the tool for ultrasonic machining;

[0008] The secondary side unit comprises a ring-shaped support and a secondary side magnetic core, the ring-shaped support is composed of a first ring-shaped part, a second ring-shaped part and an inner ring part so that the cross section of the ring-shaped support is in a C-shaped structure with an opening facing outward, and the secondary side magnetic core is wound on the inner ring part connected between the first ring-shaped part and the second ring-shaped part.

[0009] The ring-shaped support is sleeved on the outer ring of the shank housing at the position corresponding to the cavity, and the gap between the rear side of the ring-shaped support and the shank housing, the gap between the front side of the ring-shaped support and the ultrasonic transducer, and the gap at the outer side of the ring-shaped support are respectively filled with the glue filling, and the first ring-shaped part and / or the second ring-shaped part is provided with a glue filling reverse slot.

[0010] Preferably, the front side and / or the rear side of the first ring-shaped part is provided with a glue filling reverse slot, and / or the front side and / or the rear side of the second ring-shaped part is provided with a glue filling reverse slot.

[0011] Preferably, the cross section of the glue filling reverse slot is rectangular, trapezoidal, semicircular, semi-elliptical or special-shaped structure.

[0012] Preferably, the glue filling reverse slot provided on the first ring-shaped part and / or the second ring-shaped part is a plurality of through holes arranged in the circumferential direction on the first ring-shaped part and / or the second ring-shaped part.

[0013] Preferably, the cross section of the through hole is circular, sector ring-shaped, elliptical or special-shaped structure.

[0014] Preferably, the outer side of the first ring-shaped part and / or the second ring-shaped part is provided with a glue filling reverse slot.

[0015] Preferably, the cross section of the glue filling reverse slot is trapezoidal structure with narrow outside and wide inside.

[0016] Preferably, the glue filling is epoxy resin.

[0017] Preferably, the shank housing is provided with a flange at the outer ring, and the glue filling is partially filled in the gap between the rear side of the ring-shaped support and the flange.

[0018] Preferably, the shank housing is provided with a step at the outer ring, the ultrasonic transducer is provided with a flange at the outer ring, the rear end surface of the flange is provided with a clamping top, the rear side of the clamping top abuts against the step, and the glue filling is partially filled in the gap between the front side of the ring-shaped support and the clamping top.

[0019] Compared with the prior art, the ultrasonic knife handle has the advantages that: the annular support wound by the auxiliary side magnetic core in the auxiliary side unit is composed of a first annular part, a second annular part and an inner ring part, and the cross section is a C-shaped structure with an opening facing outward, a glue pouring reverse buckling groove is formed in the first annular part and / or the second annular part, and the glue pouring reverse buckling groove can provide a force point for the overall glue pouring, so that the risk that the glue pouring on the ultrasonic knife handle of the side surface wireless power transmission mode is thrown outwards during high-speed rotation is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a cross-sectional schematic view of the ultrasonic knife handle of the preferred embodiment of the utility model;

[0021] Figure 2 is Figure 1 is a structure schematic view of an embodiment of the annular support of the ultrasonic knife handle in the utility model;

[0022] Figure 3 is Figure 2 is a cross-sectional schematic view of the annular support;

[0023] Figure 4 is Figure 3 is a local enlarged schematic view in the utility model;

[0024] Figure 5 is a cross-sectional schematic view of the glue pouring reverse buckling groove in the annular support when the cross section shape is trapezoidal;

[0025] Figure 6 is a cross-sectional schematic view of the glue pouring reverse buckling groove in the annular support when the cross section shape is semicircular;

[0026] Figure 7 is Figure 1 is a structure schematic view of another embodiment of the annular support of the ultrasonic knife handle in the utility model;

[0027] Figure 8 is Figure 7 is a cross-sectional schematic view of the annular support;

[0028] Figure 9 is a schematic view of the through hole of the glue pouring reverse buckling groove in the annular support when the through hole is a heterogeneous structure;

[0029] Figure 10 is a schematic view of the through hole of the glue pouring reverse buckling groove in the annular support when the through hole is a fan ring shape;

[0030] Figure 11 is a schematic view of the glue pouring reverse buckling groove in the annular support when the glue pouring reverse buckling groove is arranged on the outer side surface of the first annular part and / or the second annular part.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] 1. shank housing; 11. cavity; 12. flange;

[0033] 2. ultrasonic transducer; 21. flange; 211. clamping top;

[0034] 3. secondary side unit; 31. secondary side magnetic core; 32. annular support; 321. first annular part; 322. second annular part; 323. inner ring part; 324. glue-filling reverse-thread groove;

[0035] 4. tool;

[0036] 5. glue-filling. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in detail below. It should be emphasized that the following description is only exemplary and is not intended to limit the scope of the present application and its applications.

[0038] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for fixing or for circuit / signal communication.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0041] In order to facilitate the description of the positional relationship between the structures, the "front" described in the embodiments of the present application refers to the direction of the installation position of the tool in the overall ultrasonic shank, and the "back" refers to the direction opposite to the "front".

[0042] As Figure 1The utility model discloses a kind of ultrasonic knife handles, including knife handle shell 1, ultrasonic transducer 2 and side unit 3, wherein, the front end of knife handle shell 1 is opened cavity 11, ultrasonic transducer 2 is fixedly connected at the front end of knife handle shell 1 to make the rear end of ultrasonic transducer 2 be in cavity 11, the front side of ultrasonic transducer 2 is used to connect tool 4 of ultrasonic machining;Side unit 3 includes side magnetic core 31 and annular support 32, in combination Figure 2 Annular support 32 is composed of first annular part 321, second annular part 322 and inner ring part 323 to make the section of annular support 32 present C-shaped structure with opening outward, the coil of side magnetic core 31 is wound on inner ring part 323 connected between first annular part 321 and second annular part 322;

[0043] Annular support 32 is sleeved at the outer ring of the position of cavity 11 of knife handle shell 1, and the gap between the rear side of annular support 32 and knife handle shell 1, the gap between the front side of annular support 32 and ultrasonic transducer 2 and the outside of annular support 32 are filled with glue filling 5 respectively, and glue filling reverse slot 324 is opened on first annular part 321 and / or second annular part 322.Further, glue filling 5 is epoxy resin.

[0044] In the embodiment, first annular part 321 is annular part arranged at the rear side of inner ring part 323, and second annular part 322 is annular part arranged at the front side of inner ring part 323.Annular support 32 is sleeved at the outer ring of the position of cavity 11 of knife handle shell 1 through inner ring part 323.

[0045] Specifically, the outer ring of knife handle shell 1 is provided with flange 12, and glue filling 5 is partially filled in the gap between the rear side of annular support 32 and flange 12, that is, in the gap between the rear side of first annular part 321 and flange 12.

[0046] The outer ring of knife handle shell 1 is provided with step 13, the outer ring of ultrasonic transducer 2 is provided with flange 21, the rear end surface of flange 21 is provided with clamping top 211, the rear side of clamping top 211 abuts against step 13, and glue filling 5 is partially filled in the gap between the front side of annular support 32 and clamping top 211, that is, in the gap between the front side of second annular part 322 and clamping top 211.

[0047] In some embodiments, glue filling reverse slot 324 is opened on the front side and / or rear side of first annular part 321, and / or glue filling reverse slot 324 is opened on the front side and / or rear side of second annular part 322.Further, the section of glue filling reverse slot 324 is rectangular, trapezoidal, semicircular, semi-elliptical or special-shaped structure;The special-shaped structure is, for example, the shape combined with rectangle and semicircle.For example, as shown in Figure 3 And Figure 4The annular support 32 shown, wherein the rectangular cross-section glue pouring reverse buckle groove 324 is opened on the front side and the back side of the first annular part 321 and the second annular part 322. Figure 5 The annular support 32 shown, wherein the trapezoidal cross-section glue pouring reverse buckle groove 324 is opened on the front side and the back side of the first annular part 321 and / or the second annular part 322, and the trapezoidal cross-section of the glue pouring reverse buckle groove 324 is narrow outside and wide inside. Figure 6 The annular support 32 shown, wherein the semicircular cross-section glue pouring reverse buckle groove 324 is opened on the front side and the back side of the first annular part 321 and / or the second annular part 322. In other specific examples, glue pouring reverse buckle grooves 324 with different cross-section shapes can also be opened on the front side and the back side of the first annular part 321 and the second annular part 322, respectively.

[0048] In other embodiments, the glue pouring reverse buckle grooves 324 opened on the first annular part 321 and / or the second annular part 322 correspond to a plurality of through holes arrayed in the circumferential direction on the first annular part 321 and / or the second annular part 322. For example, as shown in Figures 7 to 10 The glue pouring reverse buckle grooves opened on the first annular part 321 and the second annular part 322 correspond to a plurality of through holes arrayed in the circumferential direction on the first annular part 321 and the second annular part 322. Further, the cross-section shape of the through hole 325 is circular, sector ring, oval, or special structure. For example, as shown in Figure 7 And Figure 8 As shown, the cross-section shape of the through hole 325 is circular. Figure 9 As shown, the cross-section shape of the through hole 325 is a special structure combined by a rectangle and two semicircles. Figure 10 As shown, the cross-section shape of the through hole 325 is a sector ring, which means a part of a circular ring is cut by a sector.

[0049] In other embodiments, the glue pouring reverse buckle grooves 324 are opened on the outer side of the first annular part 321 and / or the second annular part 322. Further, the cross-section of the glue pouring reverse buckle groove 324 is a trapezoidal structure with the outside narrow and the inside wide, as shown in Figure 11 .

[0050] In other embodiments, the glue pouring reverse buckle grooves 324 opened on the first annular part 321 and the second annular part 322 can also adopt different structures, respectively. For example, the glue pouring reverse buckle grooves 324 opened on the first annular part 321 are rectangular cross-section glue pouring reverse buckle grooves opened on the front side and the back side of the first annular part 321, while the glue pouring reverse buckle grooves 324 opened on the second annular part 322 are a plurality of through holes arrayed in the circumferential direction on the second annular part 322; or any combination of the above structures of the glue pouring reverse buckle grooves 324.

[0051] Through the glue filling and reverse buckling groove arranged in the various embodiments, the glue filling and reverse buckling groove can provide a force point for the overall glue filling 5 when the glue filling 5 is filled, and prevent the glue filling 5 from being thrown out when rotating at a high speed.

[0052] The background section of the present utility model can contain background information about the problem or environment of the present utility model, rather than the prior art described by others. Therefore, the content contained in the background section is not the acknowledgement of the prior art by the applicant.

[0053] The above content is a further detailed description of the present utility model in combination with specific / preferred embodiments, and cannot be regarded as the specific implementation of the present utility model being limited to these descriptions. For ordinary skilled persons in the technical field to which the present utility model belongs, they can make several substitutions or modifications to the described embodiments without departing from the concept of the present utility model, and these substitution or modification manners should be regarded as belonging to the protection scope of the present utility model. In the description of the present specification, the description of the reference terms "an embodiment", "some embodiments", "preferred embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without mutual contradiction. Although the embodiments of the present utility model and their advantages have been described in detail, it should be understood that various changes, substitutions and modifications can be made in this paper without departing from the scope defined by the appended claims.

Claims

1. An ultrasonic knife handle, characterized in that: It includes a tool handle housing, an ultrasonic transducer and a secondary side unit, wherein: A cavity is defined at the front end of the tool handle housing, the ultrasonic transducer is fixedly connected to the front end of the tool handle housing so that the rear end of the ultrasonic transducer is disposed in the cavity, and the front side of the ultrasonic transducer is used to connect to a tool for ultrasonic machining; The secondary unit includes an annular support and a secondary magnetic core, wherein the annular support is composed of a first annular portion, a second annular portion, and an inner annular portion so that the cross section of the annular support is a C-shaped structure with the opening facing outward, and the secondary magnetic core is wound around the inner annular portion connected between the first annular portion and the second annular portion; The annular bracket is sleeved on the outer circle of the handle shell at the position corresponding to the cavity, and the gap between the rear side of the annular bracket and the handle shell, the gap between the front side of the annular bracket and the ultrasonic transducer, and the outer side of the annular bracket are respectively filled with glue, and a glue inverted groove is provided on the first annular portion and / or the second annular portion.

2. The ultrasonic knife handle according to claim 1, characterized in that: A glue pouring undercut groove is provided on the front side and / or the rear side of the first annular portion, and / or a glue pouring undercut groove is provided on the front side and / or the rear side of the second annular portion.

3. The ultrasonic knife handle according to claim 2, characterized in that: The cross section of the glue pouring undercut groove is rectangular, trapezoidal, semicircular, semi-elliptical or a special-shaped structure.

4. The ultrasonic knife handle according to claim 1, characterized in that: The glue-potting undercut grooves provided on the first annular portion and / or the second annular portion correspond to a plurality of through holes provided in an array along a circumferential direction on the first annular portion and / or the second annular portion.

5. The ultrasonic knife handle according to claim 4, characterized in that: The cross-sectional shape of the through hole is circular, sector-shaped, elliptical or special-shaped.

6. The ultrasonic knife handle according to claim 1, characterized in that: A glue-filling undercut groove is provided on the outer side of the first annular portion and / or the second annular portion.

7. The ultrasonic knife handle according to claim 6, characterized in that: The cross section of the glue-pouring undercut groove is a trapezoidal structure that is narrow outside and wide inside.

8. The ultrasonic knife handle according to claim 1, characterized in that: The glue is epoxy resin.

9. The ultrasonic knife handle according to claim 1, characterized in that: A flange is provided on the outer ring of the handle shell, and the glue-filled portion fills the gap between the rear side of the annular bracket and the flange.

10. The ultrasonic knife handle according to claim 1, characterized in that: A step is provided at the outer ring of the handle shell, a flange is provided at the outer ring of the ultrasonic transducer, a card top is convexly provided on the rear end face of the flange, the rear side of the card top is against the step, and the glue filling part fills the gap between the front side of the annular bracket and the card top.

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