CN105073328B - 用于超声波焊机的超声夹头变幅杆 - Google Patents

用于超声波焊机的超声夹头变幅杆 Download PDF

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CN105073328B
CN105073328B CN201480010127.XA CN201480010127A CN105073328B CN 105073328 B CN105073328 B CN 105073328B CN 201480010127 A CN201480010127 A CN 201480010127A CN 105073328 B CN105073328 B CN 105073328B
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chuck
ultrasonic
ultrasonic transformer
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extremity piece
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CN105073328A (zh
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吉列尔莫·科托
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Branson Ultrasonics Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B23K20/106—Features related to sonotrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary sonotrode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools

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  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

一种用于超声波焊机的超声夹头变幅杆(200)具有本体和夹头(202)，在该夹头(202)上能够接纳可替换的变幅杆稍端件(201)。夹头(202)具有位于其中的多个轴向狭缝、以及锥形的轴向延伸孔，所述多个轴向狭缝将夹头分成部段，该锥形的轴向延伸孔随着其轴向地向外延伸而向外成锥形。本体具有螺纹孔，该螺纹孔能够与夹头锁的带螺纹的内部部段螺纹接合。当变幅杆稍端件被接纳在夹头上时，夹头的部段被迫使向外抵靠变幅杆稍端件的内壁，并且夹头锁拧紧至螺纹孔中以将变幅杆稍端件紧固在夹头上。

Description

用于超声波焊机的超声夹头变幅杆
相关申请的交叉引用
本申请要求于2014年2月21日提交的美国专利申请No.14/186,327的优先权并且还要求于2013年2月25日提交的美国临时申请No.61/768,719的权益。上述申请的全部公开内容通过参引并入本文。
技术领域
本公开内容涉及超声波焊机，并且更具体地涉及用于超声波焊机的夹头变幅杆。
背景技术
本部分提供了与本公开内容相关的背景技术信息，这些背景技术信息不一定是现有技术。
图1中示出了典型的超声波金属焊接设备100的模型。超声波金属焊接设备100的典型部件包括超声换能器102、扩震器104以及超声变幅杆106。如由超声波焊接领域中的技术人员通常理解的，超声变幅杆是将机械能从超声换能器传递至工件的金属杆。超声变幅杆的长度通常是在驱动变幅杆的超声换能器共振的共振频率下的波长的二分之一。来自电源101的处于20KHz至60KHz的频率的电能通过超声换能器102转换成机械能。在超声换能器102中转换的机械能通过扩震器104和变幅杆106传递至焊接负载(比如两个金属件112、114)。扩震器104和变幅杆106执行传递机械能的功能以及通过增益系数转换来自超声换能器102的机械振动的功能。
在变幅杆稍端件110上产生的机械振动是执行将金属焊接在一起的任务的动作。变幅杆稍端件110可以由碳化钨或其他高强度硬质材料制成。待焊接在一起的金属件112、114邻近于变幅杆稍端件110而放置。变幅杆稍端件110与待焊接的顶部金属件112相接触。在图1的实施方式中，变幅杆106包括两个变幅杆稍端件110，其中一个变幅杆稍端件110与顶部金属件112相接触。变幅杆106的轴向震动现在变为相对于顶部机械件112的剪切震动。剪切震动被传递至顶部金属件112，使得其相对于底部金属件114前后移动，从而使两个金属件的表面在待加热的焊接接合面处彼此抵接，最终焊接在一起。底部金属件114放在焊接毡座120上。应当理解的是这种超声波焊机可以用于将多个金属箔层——比如若干层铝箔或铜箔——焊接在一起。
类似的设备用在将塑料件超声焊接在一起。原理上的差异在于超声变幅杆以在塑料件中产生竖向振荡的方式振荡。也就是说，超声变幅杆引起了塑料件相对于彼此的振荡压缩/减压，从而使塑料件的表面在待加热的焊接接合面处彼此抵接，最终焊接在一起。
超声波焊机例如公开在美国专利No.5,658,408“Method for ProcessingWorkpieces by Ultrasonic Energy”(用于通过超声能量加工工件的方法)、美国专利No.6,868,205“Anti-Splice Welder”(“反拼接焊机”)、以及美国专利公开No.2008/0054051的美国专利“Ultrasonic Welding Using Amplitude Profiling”(“使用振幅调整的超声波焊接”)中。前述文献的全部公开内容通过参引并入本文。
超声变幅杆是超声波焊机的关键部件。在金属和塑料膜与纤维的超声波焊接中，超声变幅杆是磨损部件，因为超声变幅杆的与正在被焊接的工件相接触的稍端随着时间磨损。这需要的是定期更换超声变幅杆，这为超声波焊接工艺增加了成本，因为超声变幅杆是相对昂贵的部件。为了减小该成本，某些超声变幅杆具有可替换的稍端件。一种类型的可替换稍端件具有具有外部接触部和从外部接触部延伸的螺柱，该螺柱被拧紧至位于超声变幅杆的端部中的螺纹孔中以将可替换的稍端件紧固至超声变幅杆。在另一类型中，超声变幅杆的端部具有从其向外突出的柱，可替换的稍端件配装在该柱上。柱的端部是带螺纹的，并且之后将前部螺母抵靠可替换的稍端件的前表面拧紧在柱的带螺纹的端部上，以将可替换的稍端件紧固至超声变幅杆的端部。
发明内容
本部分提供了本公开内容的概述，而不是其全部范围或其所有特征的全面公开。
用于超声波焊机的超声夹头变幅杆包括夹头，该夹头在超声夹头变幅杆的本体的端部处轴向地向外突出。一方面，夹头从超声夹头变幅杆的肩部向外突出。夹头具有位于其中的多个轴向狭缝，以及锥形的轴向延伸孔，所述多个轴向狭缝将夹头分成部段，该锥形的轴向延伸孔随着其从超声夹头变幅杆的肩部轴向地向外延伸而向外成锥形。超声夹头变幅杆包括螺纹孔，该螺纹孔从本体的端部——夹头从该端部突出——轴向地向内延伸。一方面，螺纹孔从超声夹头变幅杆的肩部轴向地向内延伸。超声夹头变幅杆的夹头接纳可替换的变幅杆稍端件，该可替换的变幅杆稍端件被放置在夹头上并且抵靠超声夹头变幅杆的肩部。具有带螺纹的内部部段和锥形的外部部段的夹头锁以螺纹方式拧紧在超声夹头变幅杆的螺纹孔中。当夹头锁拧紧在超声变幅杆的螺纹孔中时，夹头锁的锥形外部部段迫使夹头的部段向外抵靠可替换的变幅杆稍端件的内壁，从而将可替换的变幅杆稍端件紧固在夹头上并且紧固至超声夹头变幅杆，其中，所述内壁围绕可替换的变幅杆稍端件的孔。
根据本文提供的描述，其他适用范围将变得明显。此发明内容中的描述和特定实例意在仅为说明性的目的，而并非意在限制本公开内容的范围。
附图说明
本文中描述的附图的目的仅在于示出所选择的实施方式，而并非所有可能的实施方案，并且并不意在限制本公开内容的范围。
图1是现有技术的超声波焊机的示意图；
图2是根据本公开内容的一方面的超声夹头变幅杆的立体图，其中，可替换的变幅杆稍端件紧固至超声夹头变幅杆的夹头；
图3是图2的超声夹头变幅杆在没有紧固至夹头的可替换的变幅杆稍端件的情况下的立体图；
图4是由图3中的区域4指示的图3的超声夹头变幅杆的端部的立体图；
图5是沿图4中的线5-5截取的图3的超声夹头变幅杆的在图4中示出的端部的截面图；
图6是可替换的变幅杆稍端件的立体图；以及
图7是根据本公开内容的一方面的夹头锁的立体图。
贯穿附图中的若干视图，对应的附图标记指示对应的部件。
具体实施方式
现在将参照附图更加全面地描述示例性实施方式。
图2示出了超声夹头变幅杆200以及紧固至超声夹头变幅杆200的夹头202(图3)的可替换的变幅杆稍端件201。图3示出了不具有紧固至夹头202的可替换的变幅杆稍端件201的超声夹头变幅杆200。夹头202在超声夹头变幅杆200的本体203的端部205处轴向地向外突出，比如在本体203的端部205与夹头202的轴向内端207的接合处从超声夹头变幅杆200的肩部204(图4)突出。如在图4中最佳地示出的，夹头202具有将夹头202分割成多个部段208的多个轴向延伸的狭缝206。说明性地，夹头202具有四个轴向狭缝206，所述四个轴向狭缝206围绕夹头202等距地布置并将夹头202分割成四个部段208。如在图5中最佳地示出的，夹头202具有位于其中的锥形的轴向延伸孔210，该锥形的轴向延伸孔210随着孔210轴向地向外延伸而径向地向外成锥形。也就是说，孔210的直径随着孔210轴向地向外延伸而逐渐地增大。超声夹头变幅杆200的本体203包括螺纹孔212，该螺纹孔212从孔210的轴向内端部211轴向地向内延伸。一方面，螺纹孔212也部分地延伸至夹头202中。应当理解的是，不需要螺纹孔212全部都是带螺纹的。说明性地，夹头202可以具有带有由轴向狭缝206所分割的经倒角的边缘的大致方形的外截面。应当理解的是夹头202可以具有除了呈带有经倒角的边缘的方形之外的其他形式的外截面。例如，夹头202可以具有带有经倒角的边缘的多边形的截面，其中，所述多边形是除方形之外的形状。夹头202还可以具有圆形的截面。
图6更详细地示出了可替换的变幅杆稍端件201。该变幅杆稍端件201具有内孔214，该内孔214由可替换的夹头稍端件201的围绕内孔214的内壁215限定。内孔214具有与夹头202的外截面相符的截面。说明性地，可替换的变幅杆稍端件201具有如图6中所示的方形外截面。然而，应当理解的是可替换的变幅杆稍端件201的外部几何形状可以是除方形之外的其他形状并且可以是适合于使用了可替换的变幅杆稍端件201的应用的几何形状。可替换的变幅杆稍端件201可以包括一个或更多个接触表面216，所述一个或更多个接触表面216如在图6的示例中所示设置在可替换的变幅杆稍端件201的外侧部218上。接触表面216可以例如是滚花表面。应当理解的是所述接触表面或多个接触表面可以设置在可替换的变幅杆稍端件201的其他部分上，比如可替换的变幅杆稍端件201的前面上。
图7示出了用于将可替换的变幅杆稍端件201紧固至超声夹头变幅杆200的夹头锁220。夹头锁220可以被认为是具有一定形状的螺栓，该螺栓具有外部带螺纹的内部部段222以及从带螺纹的内部部段222径向地向外成锥形的锥形外部部段224。锥形外部部段224可以具有位于外端部228(图7)中的工具接纳特征226(图2)，紧固工具(未示出)可以插入该工具接纳特征226中以便于拧紧夹头锁220，如下文中所述。说明性地，工具接纳特征226可以是用于接纳艾伦板钳的六角槽，但应当理解的是其可以不同于六角槽。
为了将可替换的变幅杆稍端件201组装至超声夹头变幅杆200，可替换的变幅杆稍端件201被放置在夹头202上并且向上抵靠超声夹头变幅杆200的肩部204。之后将夹头锁220插入夹头202的孔210中，并且将带螺纹的内部部段222旋入超声夹头变幅杆220的螺纹孔212中并且拧紧。说明性地，带螺纹的内部部段222是螺纹轴。当夹头锁220被拧紧时，夹头锁220的锥形外部部段224将夹头202的部段208径向地向外推靠可替换的变幅杆稍端件201的内壁215，因而将可替换的变幅杆稍端件201紧固在夹头202上并且紧固至超声夹头变幅杆200。
已经处于说明和描述的目的提供了实施方式的以上描述。其并不意在是排他性的或限制本公开内容。即使未具体地示出或描述，特定实施方式的各个元件或特征通常不限于该特定实施方式，而是在适用的情况下可互换并且可以用在所选择的实施方式中，。这些元件或特征也可以以许多方式变化。这种变型并不认为背离了本公开内容，而是所有的这种修改意在包括在本公开内容的范围内。
与空间相关的术语比如“内部”、“外部”、“下方”、“之下”、“下部”、“之上”、“上部”等可以在本文中用于易于描述，以描述一个元件或特征相对于另外的元件或特征的如图所示的关系。与空间相关的术语可以意在涵盖使用中或操作中的装置的除了图中描绘的定向之外的不同定向。例如，如果图中的装置翻转，则被描述为在其他元件或特征“之下”或“下方”的元件将定向为在所述其他元件或特征“之上”。因此，示例性术语“之下”可以涵盖“在...之上”和“在...之下”的定向二者。装置可以以其他方式定向(旋转90度或以其他定向)并且相应地理解本文中使用的与空间相关的描述。

Claims (5)

1.一种用于超声波焊机的超声夹头变幅杆，包括：
本体；
夹头，在所述夹头上能够接纳可替换的变幅杆稍端件，所述夹头在所述超声夹头变幅杆的所述本体的端部处向外突出，所述夹头具有位于其中的多个轴向狭缝、以及锥形的轴向延伸孔，所述多个轴向狭缝将所述夹头分成部段，所述锥形的轴向延伸孔随着所述锥形的轴向延伸孔轴向地向外延伸而向外成锥形；以及
所述本体具有螺纹孔，所述螺纹孔能够与夹头锁的带螺纹的内部部段螺纹式地接合，所述螺纹孔从所述锥形的轴向延伸孔的轴向内端部轴向地向内延伸；
在所述变幅杆稍端件被接纳在所述夹头上时，所述夹头的所述部段被迫使向外抵靠所述变幅杆稍端件的内壁，并且所述夹头锁被拧紧至所述螺纹孔中以将所述变幅杆稍端件紧固在所述夹头上。
2.根据权利要求1所述的超声夹头变幅杆，其中，所述夹头具有多边形的截面，所述多边形的截面带有由所述轴向狭缝所分割的经倒角的边缘。
3.根据权利要求1所述的超声夹头变幅杆，其中，所述夹头具有大致方形的截面，所述大致方形的截面带有由所述轴向狭缝所分割的经倒角的边缘。
4.根据权利要求1所述的超声夹头变幅杆，还包括所述夹头锁，所述夹头锁具有锥形外部部段，所述锥形外部部段在所述夹头锁的所述带螺纹的内部部段被拧紧在所述螺纹孔中时迫使所述夹头的所述部段抵靠所述变幅杆稍端件。
5.根据权利要求4所述的超声夹头变幅杆，其中，所述夹头锁的所述带螺纹的内部部段是螺纹轴。
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