WO2019084993A1 - 加工刀具 - Google Patents

加工刀具 Download PDF

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Publication number
WO2019084993A1
WO2019084993A1 PCT/CN2017/110084 CN2017110084W WO2019084993A1 WO 2019084993 A1 WO2019084993 A1 WO 2019084993A1 CN 2017110084 W CN2017110084 W CN 2017110084W WO 2019084993 A1 WO2019084993 A1 WO 2019084993A1
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WO
WIPO (PCT)
Prior art keywords
mounting shaft
machining tool
blades
electrode sheet
shape
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PCT/CN2017/110084
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English (en)
French (fr)
Inventor
刘永林
马建
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惠州市秦汉科技有限公司
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Application filed by 惠州市秦汉科技有限公司 filed Critical 惠州市秦汉科技有限公司
Publication of WO2019084993A1 publication Critical patent/WO2019084993A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D35/00Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
    • B23D35/001Tools for shearing machines or shearing devices; Holders or chucks for shearing tools cutting members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D35/00Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
    • B23D35/005Adjusting the position of the cutting members
    • B23D35/007Adjusting the position of the cutting members for circular cutting members

Definitions

  • the invention relates to the field of mobile phone antenna processing, and in particular to a processing tool.
  • a plurality of antenna slots are formed by cutting on the metal mobile phone case for RF signals to enter and exit.
  • the plurality of antenna slots are formed, the plurality of antenna slots are processed one by one by means of a numerically controlled machine tool, and then the plurality of antenna slots are filled with plastic.
  • the embodiment of the invention provides a processing tool, which can improve the width uniformity and controllability of the antenna slot, thereby improving the quality of RF signal transmission and reception.
  • An embodiment of the present invention provides a machining tool including a mounting shaft, at least two blades, and at least one spacer assembly; the at least two blades are sleeved on the mounting shaft at intervals, and any two adjacent ones are At least one spacer assembly is disposed between the blades, and each of the spacer assemblies is sleeved on the mounting shaft;
  • the spacer assembly includes a first electrode sheet, a second electrode sheet, and an electrostrictive pad disposed between the first electrode sheet and the second electrode sheet, and the mounting shaft is respectively provided with The first electrode sheet and the second electrode sheet are electrically connected to the driving circuit.
  • the shape of the cross section of the first electrode sheet and the second electrode sheet is the same as the cross-sectional shape of the electrostrictive liner.
  • the outer wall of the mounting shaft is provided with a plurality of first conductive grooves and a second conductive groove;
  • the inner wall of the first electrode sheet is provided with a first conductive protrusion adapted to the shape of the second conductive groove, and the first conductive protrusion is slidably received in the axial direction of the mounting shaft.
  • the second conductive slot is electrically connected to the second conductive slot;
  • the inner wall of the second electrode sheet is provided with a second conductive protrusion adapted to the shape of the first conductive slot, and the second conductive protrusion can be
  • the first conductive groove is slidably received in the axial direction of the mounting shaft and electrically connected to the first conductive groove.
  • a base is further included, and the mounting shaft is mounted on one end surface of the base.
  • the device further includes a limiting member, the limiting member is sleeved at an end of the mounting shaft away from the base, the limiting member and the base are the at least two blades and the The at least one spacer is clamped and fixed.
  • the minimum distance from the center of the cross section of the mounting shaft to the edge of the cross section is not equal to the maximum distance; the center of the blade is provided with a perforation, the perforation is adapted to the cross-sectional shape and size The blade is sleeved on the mounting shaft through the perforation.
  • the mounting shaft has a semicircular cross section, a sector shape, a triangle shape or a polygonal shape.
  • the at least two blades are all parallel to each other.
  • FIG. 1 is a schematic view showing the structure of a machining tool in an embodiment of the present invention.
  • Fig. 2 is a schematic view showing another structure of the machining tool in the embodiment of the present invention.
  • Fig. 4 is a schematic view showing the structure of a machining tool mounting shaft in the embodiment of the present invention.
  • Fig. 5 is a schematic view showing the structure of a first electrode sheet of a machining tool in an embodiment of the present invention.
  • Figure 6 is a schematic view showing the structure of a second electrode sheet of a processing tool in an embodiment of the present invention.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • Connected, or integrally connected may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the spacer assembly 40 includes a first electrode sheet 42 , a second electrode sheet 43 , and an electrostrictive pad disposed between the first electrode sheet 42 and the second electrode sheet 43 .
  • the mounting shaft 20 is provided with a driving circuit electrically connected to the first electrode piece 42 and the second electrode piece 43, respectively.
  • the thickness of the electrostrictive pad 41 can be adjusted to adjust the distance between adjacent two blades 30.
  • the shape of the cross section of the first electrode sheet 42 and the second electrode sheet 43 is the same as the cross-sectional shape of the electrostrictive liner 41.
  • the electrostrictive pad 41 is annular in shape, and an insulating layer is disposed on the inner wall of the hole.
  • the inner wall of the first electrode sheet 42 is provided with a first conductive protrusion 421 adapted to the shape of the second conductive groove 22 , and the first conductive protrusion 421 can be along the mounting axis.
  • the axial sliding of the second conductive groove 22 is electrically connected to the second conductive groove 22 .
  • the inner wall of the second electrode sheet 43 is provided with a second conductive protrusion 431 adapted to the shape of the first conductive groove 21, and the second conductive protrusion 431 is slidably received in the axial direction of the mounting shaft 20.
  • the first conductive groove 21 is electrically connected to the first conductive groove 21 .
  • the base 10 is substantially cylindrical.
  • the base 10 is used for clamping onto a numerical control machine tool, and the base 10 is rotated by a rotating shaft of the numerical control machine tool.
  • the base 10 is also provided with an anti-slip structure to be more stably clamped by the numerical control machine tool.
  • the anti-slip structure may be a non-slip pattern, a limiting protrusion or a limiting groove.
  • the mounting shaft 20 is substantially columnar and has one end fixed to an end surface of the base 10.
  • the axial direction of the mounting shaft 20 is perpendicular to the end surface of the base 10.
  • Each of the blades 30 has a substantially annular shape, for example, an annular shape or an inner shape of the outer circle.
  • a through hole 31 is defined in the blade 30 such that the blade 30 has an annular shape, for example, the through hole 31 has a circular shape, so that the blade 30 has an annular shape.
  • the number of the blades 30 is three, and the adjacent two blades 30 of the three blades 30 are separated by the thickness of one spacer 40.
  • the mounting shaft 20 is dimensioned with the perforation 31 of the blade 30 such that an interference fit between the mounting shaft 20 and the blade 30 avoids two The person produces a slip.
  • Each shim assembly 40 can be an elastomeric shim, such as a rubber shim.
  • the shape and end face dimensions of the shim assembly 40 are adapted to the blade 30.
  • the number of the spacer assemblies 40 is two, and a spacer assembly 40 is disposed between each adjacent two blades 30.
  • the spacer can also be a non-elastic spacer, and two or three spacer assemblies 40 can also be disposed between two adjacent blades 30.
  • the limiting member 50 can be a nut.
  • the corresponding position on the mounting shaft 20 is provided with an external thread structure, and the limiting member 50 is screwed on the externally threaded structure, so that the limiting member 50 and the base 10 clamping the at least two blades 30, the at least one shim assembly 40.
  • the limiting member 50 can also be a hoop member that is fixedly sleeved on the mounting shaft 20 at a corresponding position.
  • the cross section of the mounting shaft 20 is set to be non-circular, that is, the center of gravity of the cross section 20 to the edge of the cross section.
  • the maximum distance is not equal to the minimum distance.
  • the cross-section of the mounting shaft 20 may be substantially elliptical, semi-circular, fan-shaped, triangular, quadrangular, or polygonal.
  • the mounting shaft 20 has a quadrangular cross section.
  • the insert 30 is provided with a perforation 31 adapted to the cross-sectional size and shape of the mounting shaft 20.
  • the embodiment of the invention adopts at least two blades on one processing tool, so that two antenna slots can be cut at one time, which can improve the uniformity of the width of the antenna slot, thereby improving the transmission and reception quality of the radio frequency signal.
  • the outer wall of the mounting shaft 20 is provided with a plurality of third conductive protrusions 23 and a fourth conductive protrusion 24 .
  • the driving circuit is electrically connected to the plurality of third conductive bumps 23 and one fourth conductive bump 24, respectively.
  • the fourth conductive bumps 24 are for electrical connection with the first electrode pads 42 of the respective pad assemblies 40, which serve as a common ground.
  • the plurality of third conductive bumps 23 are electrically connected to the second electrode tabs 43 of the respective pad assemblies 40 to output respective different driving voltages.
  • the inner wall of the first electrode sheet 42 is provided with a third conductive slot 422 adapted to the shape of the second conductive slot 22 , and the first conductive slot 421 is along the mounting shaft 20 .
  • the second conductive groove 22 is axially slidably received and electrically connected to the second conductive groove 22 .
  • the inner wall of the second electrode sheet 43 is provided with a second conductive protrusion 431 adapted to the shape of the first conductive groove 21, and the second conductive protrusion 431 is slidably received in the axial direction of the mounting shaft 20.
  • the first conductive groove 21 is electrically connected to the first conductive groove 21 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrotherapy Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

一种加工刀具,包括安装轴(20)、至少两个刀片(30)以及至少一个垫片组件(40);所述至少两个刀片(30)间隔地套接在所述安装轴(20)上,任意相邻两个所述刀片(30)之间至少设置有一所述垫片组件(40),每一所述垫片组件(40)均套接在所述安装轴(20)上;所述垫片组件(40)包括第一电极片(42)、第二电极片(43)以及设置于所述第一电极片(42)与所述第二电极片(43)之间的电致可伸缩衬垫(41),所述安装轴(20)上设置有分别与所述第一电极片(42)以及第二电极片(43)电连接的驱动电路。

Description

加工刀具 技术领域
本发明涉及手机天线加工领域,特别涉及一种加工刀具。
背景技术
全金属外壳的手机是目前市场主流。而全金属外壳的手机背面需要留出预定的非导电区域,以供射频信号通过。
现有技术中,通过该金属手机壳上切割形成若干条天线缝隙来供射频信号进出。形成该若干条天线缝隙时,采用数控机床加工的方式一条一条的加工出该若干条天线缝隙,然后用塑胶填充该若干条天线缝隙。
但是,在实际加工过程中,加工完第一条天线缝隙之后,在加工第二条天线缝隙时,由于第一条天线缝隙处是悬空的,无法形成稳定的支撑,导致切割第二条天线缝隙以及后续天线缝隙的过程中缝隙宽度不均匀,影响射频信号的发射与接收。
现有技术存在缺陷,急需改进。
发明内容
本发明实施例提供一种加工刀具,可以提高天线缝隙的宽度均匀性以及可控,从而提高射频信号收发质量。
本发明实施例提供了一种加工刀具,包括安装轴、至少两个刀片以及至少一个垫片组件;所述至少两个刀片间隔地套接在所述安装轴上,任意相邻两个所述刀片之间至少设置有一所述垫片组件,每一所述垫片组件均套接在所述安装轴上;
所述垫片组件包括第一电极片、第二电极片以及设置于所述第一电极片与所述第二电极片之间的电致可伸缩衬垫,所述安装轴上设置有分别与所述第一电极片以及第二电极片所述电连接的驱动电路。
优选地,所述第一电极片以及所述第二电极片的横截面的形状与所述电致可伸缩衬垫的横截面形状相同。
优选地,所述电致可伸缩衬垫呈圆环状,其内侧的孔壁上设置有绝缘层。
优选地,该安装轴的外壁上设置有多个第一导电槽以及一个第二导电槽;
所述第一电极片的内孔壁上设置有与所述第二导电槽的形状适配的第一导电凸起,该第一导电凸起可沿所述安装轴的轴向滑动地收容于该第二导电槽中并与第二导电槽电连接;该第二电极片的内孔壁上设置有与第一导电槽的形状适配的第二导电凸起,该第二导电凸起可沿安装轴的轴向滑动地收容于该第一导电槽中并与第一导电槽电连接。
优选地,还包括一基座,所述安装轴安装于所述基座的一端面上。
优选地,还包括一限位件,所述限位件套接于所述安装轴的远离所述基座的一端,所述限位件以及所述基座将所述至少两个刀片以及所述至少一个垫片夹持固定。
优选地,所述安装轴的横截面的中心到该横截面的边缘上的最小距离与最大距离不相等;所述刀片的中心开设有一穿孔,所述穿孔与所述横截面形状以及尺寸适配,所述刀片通过所述穿孔套接在所述安装轴上。
优选地,所述安装轴的横截面呈半圆形、扇形、三角形或多边形。
优选地,所述至少两个刀片均相互平行。
附图说明
图1是本发明实施例中的加工刀具的一种结构示意图。
图2是本发明实施例中的加工刀具的另一种结构示意图。
图3是本发明实施例中的加工刀具的一种局部结构示意图。
图4是本发明实施例中的加工刀具安装轴的一种结构示意图。
图5是本发明实施例中的加工刀具的第一电极片的一种结构示意图。
图6是本发明实施例中的加工刀具的第二电极片的一种结构示意图。
图7是本发明实施例中的加工刀具安装轴的另一种结构示意图。
图8是本发明实施例中的加工刀具的第一电极片的另一种结构示意图。
图9是本发明实施例中的加工刀具的第二电极片的另一种结构示意图。
具体实施方式
下面详细描述本发明的实施方式,所述实施方式的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的,仅用于解释本发明,而不能理解为对本发明的限制。
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。
在本发明的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接或可以相互通讯;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本发明。此外,本发明可以在不同例子中重复参考数字和/或参考字母,这种重复是为了简化和清楚的目的,其本身不指示所讨论各种实施方式和/或设置之间的关系。此外,本发明提供了的各种特定的工艺和材料的例子,但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参照图1以及图2,在该优选实施例中该加工刀具包括基座10、安装轴20、至少两个刀片30、至少一个垫片组件40以及一限位件50。其中,该安装轴20的一端固定安装于该基座10的一端面上。该至少两个刀片30间隔地套接在安装轴20上,该至少一个垫片组件40套接于该安装轴20上。相邻两个刀片30之间至少套接有一个垫片组件40从而将该相邻的两个刀片30隔开对应的距离。该限位件50套接于该安装轴20的另一端。该限位件50以及该基座10的一端面将该至少两个刀片30、至少一个垫片组件40固定夹持于其间。
请同时参照图3,该垫片组件40包括第一电极片42、第二电极片43以及设置于所述第一电极片42与所述第二电极片43之间的电致可伸缩衬垫41,所述安装轴20上设置有分别与所述第一电极片42以及第二电极片43所述电连接的驱动电路。
工作时,通过调节输出给每一垫片组件40的电压大小,可以调节电致可伸缩衬垫41的厚度,从而调节相邻两个刀片30之间的距离。
具体地,该第一电极片42、第二电极片43的横截面的形状与该电致可伸缩衬垫41的横截面形状相同。
进一步地,在一些实施例中,该电致可伸缩衬垫41均呈圆环状,其内侧的孔壁上设置有绝缘层。
请参照图4,该安装轴20的外壁上设置有多个第一导电槽21以及一个第二导电槽22。该驱动电路分别与该多个第一导电槽21以及一个第二导电槽22电连接。该第二导电槽22用于与各个垫片组件40的第一电极片42电连接,其用作公共地线。该多个第一导电槽21分别与各个垫片组件40的第二电极片43电连接,以输出各自不同的驱动电压。
请参照图5以及图6,该第一电极片42的内孔壁上设置有与第二导电槽22的形状适配的第一导电凸起421,该第一导电凸起421可沿安装轴20的轴向滑动地收容于该第二导电槽22中并与第二导电槽22电连接。该第二电极片43的内孔壁上设置有与第一导电槽21的形状适配的第二导电凸起431,该第二导电凸起431可沿安装轴20的轴向滑动地收容于该第一导电槽21中并与第一导电槽21电连接。
实际应用中,该基座10大致呈圆柱状。该基座10用于夹持到数控机床上,通过数控机床的转轴带动该基座10旋转。该基座10上还设置有防滑结构,以便于更稳定地被数控机床夹持。例如,该防滑结构可以为防滑纹、限位凸起或限位槽等。
该安装轴20大致柱状,其一端固定于该基座10的端面上。该安装轴20的轴向垂直于该基座10的端面。
每一刀片30大致呈环状,例如圆环状也可以是外圆内方的形状。该刀片30内开设有一穿孔31从而使得该刀片30呈环状,例如该穿孔31呈圆形状,从而使得该刀片30呈圆环状。在本实施例中,该刀片30的数量为3个,且该3个刀片30中的相邻两个刀片30相隔一个垫片40的厚度的距离。
在该图1以及图2所示的实施例中,该安装轴20与该刀片30的穿孔31之间的尺寸适配,从而使得安装轴20与该刀片30的之间过盈配合,避免二者产生滑动。
每一垫片组件40均可以为弹性垫片,例如橡胶垫片。该垫片组件40的形状以及端面尺寸均与该刀片30适配。在本实施例中,垫片组件40的数量为两个,每相邻两个刀片30之间分别设置一个垫片组件40。当然可以理解地,该垫片也可以采用非弹性垫片,相邻两个刀片30之间也可以设置2个或3个垫片组件40。
该限位件50可以为螺母,对应地,该安装轴20上对应位置设置有外螺纹结构,该限位件50螺接在该外螺纹结构上,从而使得该限位件50以及该基座10将该至少两个刀片30、至少一个垫片组件40夹紧。该限位件50还可以为抱箍件,其固定套接于该安装轴20上对应位置。
可以理解地,在另一些实施例中,请同时参照图3以及图4,该刀片30的 内侧与该安装轴20的外侧之间设置有限位结构,以防止该刀片30相对于该安装轴20的周向打滑。例如,该限位结构可以包括设置于该刀片30的穿孔31的内壁上的限位槽32以及设置于该安装轴20的外壁上的限位肋23。安装时,该限位肋23卡接在该限位槽32中。
可以理解地,为了防止刀片30沿着该安装轴20的周向打滑,将该安装轴20的横截面设置为非圆形的,也即是该横截面20的重心到该横截面的边缘的最大距离与最小距离不相等。例如,该安装轴20的横截面可以大致呈椭圆形、半圆形、扇形、三角形、四边形或多边形等。例如,该安装轴20的横截面为四边形。对应地,该刀片30内开设有与该安装轴20的横截面尺寸以及形状适配的穿孔31。
由上可知,本发明实施例采用在一个加工刀具上设置至少两个刀片,从而可以一次性切割出两条天线缝隙,可以提高天线缝隙的宽度的均匀性,进而可以提高射频信号的收发质量。
在一些实施例中,请参照图7,该安装轴20的外壁上设置有多个第三导电凸起23以及一个第四导电凸起24。该驱动电路分别与该多个第三导电凸起23以及一个第四导电凸起24电连接。该第四导电凸起24用于与各个垫片组件40的第一电极片42电连接,其用作公共地线。该多个第三导电凸起23分别与各个垫片组件40的第二电极片43电连接,以输出各自不同的驱动电压。
请参照图8以及图9,该第一电极片42的内孔壁上设置有与第二导电槽22的形状适配的第三导电槽422,该第一导电槽421可沿安装轴20的轴向滑动地收容于该第二导电槽22中并与第二导电槽22电连接。该第二电极片43的内孔壁上设置有与第一导电槽21的形状适配的第二导电凸起431,该第二导电凸起431可沿安装轴20的轴向滑动地收容于该第一导电槽21中并与第一导电槽21电连接。
在本说明书的描述中,参考术语“一个实施方式”、“某些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且,描述的具体特征、结构、材料或者 特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
综上所述,虽然本发明已以优选实施例揭露如上,但上述优选实施例并非用以限制本发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明的保护范围以权利要求界定的范围为准。

Claims (8)

  1. 一种加工刀具,其特征在于,包括安装轴、至少两个刀片以及至少一个垫片组件;所述至少两个刀片间隔地套接在所述安装轴上,任意相邻两个所述刀片之间至少设置有一所述垫片组件,每一所述垫片组件均套接在所述安装轴上;
    所述垫片组件包括第一电极片、第二电极片以及设置于所述第一电极片与所述第二电极片之间的电致可伸缩衬垫,所述安装轴上设置有分别与所述第一电极片以及第二电极片所述电连接的驱动电路。
  2. 根据权利要求1所述的加工刀具,其特征在于,所述第一电极片以及所述第二电极片的横截面的形状与所述电致可伸缩衬垫的横截面形状相同。
  3. 根据权利要求1所述的加工刀具,其特征在于,所述电致可伸缩衬垫呈圆环状,其内侧的孔壁上设置有绝缘层。
  4. 根据权利要求1所述的加工刀具,其特征在于,还包括一基座,所述安装轴安装于所述基座的一端面上。
  5. 根据权利要求1所述的加工刀具,其特征在于,还包括一限位件,所述限位件套接于所述安装轴的远离所述基座的一端,所述限位件以及所述基座将所述至少两个刀片以及所述至少一个垫片夹持固定。
  6. 根据权利要求1所述的加工刀具,其特征在于,所述安装轴的横截面的中心到该横截面的边缘上的最小距离与最大距离不相等;所述刀片的中心开设有一穿孔,所述穿孔与所述横截面形状以及尺寸适配,所述刀片通过所述穿孔套接在所述安装轴上。
  7. 根据权利要求6所述的加工刀具,其特征在于,所述安装轴的横截面呈半圆形、扇形、三角形或多边形。
  8. 根据权利要求6所述的加工刀具,其特征在于,所述至少两个刀片均相互平行。
PCT/CN2017/110084 2017-11-03 2017-11-09 加工刀具 WO2019084993A1 (zh)

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