技术领域technical field
本发明涉及超声加工以及精密切削领域，尤其涉及超声振动铣削、钻削、磨削等旋转超声加工装置。The invention relates to the fields of ultrasonic machining and precision cutting, in particular to ultrasonic vibration milling, drilling, grinding and other rotary ultrasonic machining devices.
背景技术Background technique
近几年来，许多硬脆材料如硅基材料、陶瓷材料、复合材料、一些高强度金属以及一些弱刚度结构、深小孔结构等在机械领域使用越来越多，使用传统的加工非常困难、加工成本非常高或者无法加工，而超声振动加工能减小切削力和切削温度、减小刀具磨损以及加工零件或者刀具刚性强化使得其在这类材料以及结构的加工中应用非常广泛。目前的超声加工研究主要应用的是弯曲振动、纵向振动形式，但是这两种振动形式主要应用于车削、钻削等加工过程中，例如椭圆超声振动车削、超声振动钻削等等，而在铣削等以旋转方式进行去除材料的加工方式并不适合应用弯曲振动、纵向振动等超声振动。应用于铣削加工的扭转振动装置有通过在实心的前盖板上或者变幅杆上增加螺旋槽结构，但是均因结构扭转振动时材料内部摩擦损耗大部分能量而造成扭转幅值较小，能量利用效率较低等缺陷，由于前后扭转振动幅值不一致导致结构扭振振动节面与纵向振动节面不一致，对于装置应用时的如机床主轴等其它结构造成一定的影响。In recent years, many hard and brittle materials such as silicon-based materials, ceramic materials, composite materials, some high-strength metals and some weak stiffness structures, deep and small hole structures, etc. have been used more and more in the mechanical field, and it is very difficult to use traditional processing. The processing cost is very high or cannot be processed, and ultrasonic vibration processing can reduce cutting force and cutting temperature, reduce tool wear, and strengthen the rigidity of processed parts or tools, making it widely used in the processing of such materials and structures. The current research on ultrasonic machining is mainly applied in the form of bending vibration and longitudinal vibration, but these two vibration forms are mainly used in turning, drilling and other processing processes, such as elliptical ultrasonic vibration turning, ultrasonic vibration drilling, etc., while milling The processing method of removing material by rotating, etc. is not suitable for applying ultrasonic vibration such as bending vibration and longitudinal vibration. The torsional vibration device used in milling processing has a spiral groove structure added to the solid front cover plate or the horn, but the torsional amplitude is small due to the frictional loss of most of the energy inside the material during the torsional vibration of the structure, and the energy Defects such as low utilization efficiency, due to the inconsistency of the front and rear torsional vibration amplitudes, the structural torsional vibration vibration nodal surface is inconsistent with the longitudinal vibration nodal surface, which has a certain impact on other structures such as machine tool spindles when the device is applied.
发明内容Contents of the invention
本发明为解决现有应用于铣削加工的扭转振动装置扭转振动时材料内部摩擦损耗大部分能量而造成扭转幅值较小，能量利用效率较低的问题，进而提供一种纵扭共振超声振动装置。The present invention aims to solve the problem of small torsional amplitude and low energy utilization efficiency caused by the internal friction loss of most of the energy in the torsional vibration of the existing torsional vibration device used in milling, and further provides a longitudinal torsional resonance ultrasonic vibration device .
本发明为解决上述问题采取的技术方案是：纵扭共振超声振动装置，它包括阶梯式中空筒锥复合体、纵扭转换空心圆柱体、预紧螺栓、偶数个压电陶瓷片和多个电极片；阶梯式中空筒锥复合体主要由同轴依次设置且制成一体的轴向定位轴、圆柱形纵扭转换体、锥形扭转振动放大体和圆柱形纵向振动放大体组成；The technical solution adopted by the present invention to solve the above problems is: a longitudinal-torsional resonance ultrasonic vibration device, which includes a stepped hollow barrel-cone complex, a longitudinal-torsion conversion hollow cylinder, pre-tightening bolts, an even number of piezoelectric ceramic sheets and a plurality of electrodes The stepped hollow cone complex is mainly composed of an axial positioning shaft, a cylindrical longitudinal-torsion conversion body, a conical torsional vibration amplification body and a cylindrical longitudinal vibration amplification body, which are arranged coaxially in sequence and made into one;
锥形扭转振动放大体的大直径端与圆柱形纵扭转换体连接，锥形扭转振动放大体的小直径端与圆柱形纵向振动放大体连接；纵扭转换空心圆柱体的一端插装在轴向定位轴上；The large-diameter end of the conical torsional vibration amplifying body is connected to the cylindrical longitudinal-torsion conversion body, and the small-diameter end of the conical torsional vibration amplifying body is connected to the cylindrical longitudinal vibration amplifying body; one end of the longitudinal-torsion conversion hollow cylinder is inserted into the shaft to the positioning axis;
轴向定位轴上套装有叠放设置的偶数个压电陶瓷片，相邻两个压电陶瓷片之间的轴向定位轴上套装有一个电极片；纵扭转换空心圆柱体与相邻的压电陶瓷片之间的轴向定位轴上套装有一个电极片，圆柱形纵扭转换体与相邻的压电陶瓷片之间的轴向定位轴上套装有一个电极片；An even number of stacked piezoelectric ceramic sheets is set on the axial positioning shaft, and an electrode sheet is set on the axial positioning shaft between two adjacent piezoelectric ceramic sheets; the vertical torsion conversion hollow cylinder and the adjacent An electrode sheet is sleeved on the axial positioning shaft between the piezoelectric ceramic sheets, and an electrode sheet is sleeved on the axial positioning shaft between the cylindrical longitudinal-torsion conversion body and the adjacent piezoelectric ceramic sheet;
纵扭转换空心圆柱体的周侧面上开设有旋向相同的多条第二螺旋槽，圆柱形纵扭转换体的周侧面上开设有旋向相同的多条第一螺旋槽，第一螺旋槽和第二螺旋槽的数量和尺寸相同而旋向相反，预紧螺栓旋拧在阶梯式中空筒锥复合体和纵扭转换空心圆柱体的贯通的中心螺纹通孔内，预紧螺栓将阶梯式中空筒锥复合体、纵扭转换空心圆柱体、偶数个压电陶瓷片和多个电极片连接在一起。A plurality of second helical grooves with the same direction of rotation are provided on the peripheral side of the longitudinal-torsion conversion hollow cylinder, and a plurality of first helical grooves with the same rotation direction are provided on the peripheral side of the cylindrical longitudinal-torsion conversion body. The number and size of the second helical groove are the same and the direction of rotation is opposite. The pre-tightening bolt is screwed in the central threaded through hole of the stepped hollow barrel-cone composite body and the longitudinal-torsion conversion hollow cylinder, and the pre-tightening bolt will be stepped. The hollow cylinder-cone composite body, the longitudinal-torsion conversion hollow cylinder, an even number of piezoelectric ceramic sheets and a plurality of electrode sheets are connected together.
本发明的有益效果是：本发明的纵扭共振超声振动装置在单一轴向激励下，结构上能产生纵向振动和扭转振动两种振动形式的复合振动，供电形式简单；激振源振动形式简单，产生方式容易；并且由于扭转振动所受结构内部阻力小，能量利用更加充分，使得扭转振动幅值较大，能量利用效率提高。The beneficial effects of the present invention are: the longitudinal-torsional resonance ultrasonic vibration device of the present invention can generate composite vibration of two vibration forms of longitudinal vibration and torsional vibration structurally under single axial excitation, and the power supply form is simple; the vibration form of the excitation source is simple , the generation method is easy; and because the internal resistance of the structure to the torsional vibration is small, the energy utilization is more sufficient, so that the amplitude of the torsional vibration is larger and the energy utilization efficiency is improved.
本发明整个装置采用中空结构，有利于扭转振动幅值的放大，扭转振动节面与纵向振动节面重合，阶梯式中空筒锥复合体和纵扭转换空心圆柱体扭转动量相平衡。The entire device of the present invention adopts a hollow structure, which is beneficial to the amplification of the torsional vibration amplitude, the torsional vibration nodal surface coincides with the longitudinal vibration nodal surface, and the torsional momentum of the stepped hollow cylinder-cone complex and the longitudinal-torsional conversion hollow cylinder is balanced.
扭转振幅比现有技术有大幅增大，相比申请号为201410157974.0的一种纵扭复合超声振动加工装置，在尺寸参数大致相似的情况下，扭转振动幅值能提高3-6倍以上；相比申请号为201410240342.0的一种纵扭复合超声振动切削装置和申请号为：201420691917.6的纵扭复合振动超声加工换能器，在尺寸参数大致相似的情况下，扭转振动幅值能提高2-3倍以上。Compared with the prior art, the torsional amplitude is greatly increased. Compared with a longitudinal-torsional composite ultrasonic vibration processing device with application number 201410157974.0, the torsional vibration amplitude can be increased by more than 3-6 times when the size parameters are roughly similar; Compared with a longitudinal-torsional composite ultrasonic vibration cutting device with application number 201410240342.0 and a longitudinal-torsional composite vibration ultrasonic machining transducer with application number 201420691917.6, the torsional vibration amplitude can be increased by 2-3 when the size parameters are roughly similar. more than double.
本发明的纵扭共振超声振动装置可以直接安装在机床主轴上通过集流环供电后即可作为机床主轴的一部分，使用简易方便，互换性较好。The longitudinal torsional resonance ultrasonic vibration device of the present invention can be directly installed on the main shaft of the machine tool and can be used as a part of the main shaft of the machine tool after being powered by a collector ring. The device is simple and convenient to use and has good interchangeability.
本发明的纵扭共振超声振动装置具有通用刀具安装结构，可以实现快速换刀，因而在实际应用中非常简便易行。The longitudinal torsional resonance ultrasonic vibration device of the present invention has a universal tool installation structure, can realize quick tool change, and is therefore very simple and easy in practical application.
附图说明Description of drawings
图1是本发明纵扭共振超声振动装置的立体图，图2是本发明纵扭共振超声振动装置的半剖图，图3是本发明纵扭共振超声振动装置的阶梯式中空筒锥复合体和主轴安装板连接结构立体图，图4是本发明纵扭共振超声振动装置的纵扭转换空心圆柱体立体图。Fig. 1 is a perspective view of the longitudinal-torsional resonance ultrasonic vibration device of the present invention, Fig. 2 is a half-sectional view of the longitudinal-torsional resonance ultrasonic vibration device of the present invention, and Fig. 3 is a stepped hollow cylinder-cone complex and a longitudinal-torsional resonance ultrasonic vibration device of the present invention The perspective view of the connection structure of the main shaft mounting plate, Fig. 4 is a perspective view of the longitudinal-torsional conversion hollow cylinder of the longitudinal-torsional resonance ultrasonic vibration device of the present invention.
具体实施方式detailed description
具体实施方式一：结合图1-图4说明，本实施方式的纵扭共振超声振动装置，它包括阶梯式中空筒锥复合体、纵扭转换空心圆柱体2、预紧螺栓1、偶数个压电陶瓷片9和多个电极片10；阶梯式中空筒锥复合体主要由同轴依次设置且制成一体的轴向定位轴14、圆柱形纵扭转换体5、锥形扭转振动放大体12和圆柱形纵向振动放大体6组成；Specific Embodiment 1: In conjunction with Fig. 1-Fig. 4, the longitudinal-torsional resonance ultrasonic vibration device of this embodiment includes a stepped hollow cylinder-cone complex, a longitudinal-torsional conversion hollow cylinder 2, a pre-tightening bolt 1, an even number of pressing Electric ceramic sheet 9 and a plurality of electrode sheets 10; the stepped hollow cylinder-cone complex is mainly composed of an axial positioning shaft 14, a cylindrical longitudinal-torsional conversion body 5, and a conical torsional vibration amplification body 12, which are arranged coaxially in sequence and made into one. Composed of cylindrical longitudinal vibration amplifier 6;
锥形扭转振动放大体12的大直径端与圆柱形纵扭转换体5连接，锥形扭转振动放大体12的小直径端与圆柱形纵向振动放大体6连接；纵扭转换空心圆柱体2的一端插装在轴向定位轴14上；The large-diameter end of the conical torsional vibration amplifying body 12 is connected with the cylindrical longitudinal-torsion conversion body 5, and the small-diameter end of the conical torsional vibration amplifying body 12 is connected with the cylindrical longitudinal vibration amplifying body 6; One end is inserted on the axial positioning shaft 14;
轴向定位轴14上套装有叠放设置的偶数个压电陶瓷片9，相邻两个压电陶瓷片9之间的轴向定位轴14上套装有一个电极片10；纵扭转换空心圆柱体2与相邻的压电陶瓷片9之间的轴向定位轴14上套装有一个电极片10，圆柱形纵扭转换体5与相邻的压电陶瓷片9之间的轴向定位轴14上套装有一个电极片10；An even number of stacked piezoelectric ceramic sheets 9 are set on the axial positioning shaft 14, and an electrode sheet 10 is set on the axial positioning shaft 14 between two adjacent piezoelectric ceramic sheets 9; An electrode sheet 10 is set on the axial positioning shaft 14 between the body 2 and the adjacent piezoelectric ceramic sheet 9, and the axial positioning shaft between the cylindrical longitudinal-torsion conversion body 5 and the adjacent piezoelectric ceramic sheet 9 There is an electrode piece 10 on the upper sleeve of 14;
纵扭转换空心圆柱体2的周侧面上开设有旋向相同的多条第二螺旋槽2-1，圆柱形纵扭转换体5的周侧面上开设有旋向相同的多条第一螺旋槽5-1，第一螺旋槽5-1和第二螺旋槽2-1的数量和尺寸相同而旋向相反，预紧螺栓1旋拧在阶梯式中空筒锥复合体和纵扭转换空心圆柱体2的贯通的中心螺纹通孔16内，预紧螺栓1将阶梯式中空筒锥复合体、纵扭转换空心圆柱体2、偶数个压电陶瓷片9和多个电极片10连接在一起。A plurality of second helical grooves 2-1 with the same direction of rotation are provided on the peripheral side of the longitudinal-torsion conversion hollow cylinder 2, and a plurality of first helical grooves with the same direction of rotation are provided on the peripheral side of the cylindrical longitudinal-torsion conversion body 5 5-1, the number and size of the first helical groove 5-1 and the second helical groove 2-1 are the same, but the direction of rotation is opposite, and the pre-tightening bolt 1 is screwed on the stepped hollow barrel-cone complex and the longitudinal-torsion conversion hollow cylinder 2, the pre-tightening bolt 1 connects the stepped hollow cylinder-cone complex, the vertical-torsion conversion hollow cylinder 2, an even number of piezoelectric ceramic sheets 9 and a plurality of electrode sheets 10 together.
本实施方式装置的阶梯式中空筒锥复合体和纵扭转换空心圆柱体2采用空心结构有利于提高结构对扭转振动的放大倍数，也用于减小结构扭转振动过程中结构材料内部摩擦造成的能量损失。螺旋槽结构能实现纵振转化成扭转振动，第一螺旋槽5-1与第二螺旋槽2-1旋向相反，有利于使得纵扭转换空心圆柱体上产生与阶梯式中空筒锥复合体方向相反的扭转振动，从而可以以较低的能量激振起装置的扭转振动。纵扭转换空心圆柱体和圆柱形纵扭转换体的反向设置使纵扭转换结构减小扭转振动的阻力，使得该装置在相同振动能量时实现高效率扭转振动。第一螺旋槽5-1和第二螺旋槽2-1可为通孔状螺旋槽，第一螺旋槽5-1和第二螺旋槽2-1的长度、螺距、宽度等参数相同，可以通过控制第一螺旋槽5-1和第二螺旋槽2-1的长度、螺距、宽度等参数改变纵扭转换的效率。贯通的中心螺纹通孔16结构是指轴向定位轴14、圆柱形纵扭转换体5、锥形扭转振动放大体12、圆柱形纵向振动放大体6以及纵扭转换空心圆柱体共同开设的中心螺纹通孔，以安装预紧螺栓1，可以通过控制中心螺纹通孔16的直径来改变结构的频率以及扭转振动放大倍数。预紧螺栓阶梯式中空筒锥复合体、纵扭转换空心圆柱体2、偶数个压电陶瓷片9和多个电极片10连接在一起，并给压电陶瓷片提供压应力使压电陶瓷处于被压缩状态，从而抑制住压电陶瓷因受与极化方向相同的电场时产生拉力而造成的材料破坏。所述轴向定位轴用于对压电陶瓷片和纵扭转换空心圆柱体进行轴心定位，并保证纵向振动激励方向始终与装置轴心线重合。圆柱形纵向振动放大体6结构为细长部分，可以通过改变这段结构的直径和长度控制纵振振幅的放大倍数。锥形扭转振动放大体12为过渡圆台结构。锥形扭转振动放大体12和圆柱形纵向振动放大体6有利于加工时减少剪切力和加水量。本发明纵扭共振超声振动装置的共振频率为20KHz以上。The hollow structure of the stepped hollow cylinder-cone complex and longitudinal-torsion conversion hollow cylinder 2 of the device in this embodiment is beneficial to improve the magnification of the structure to the torsional vibration, and is also used to reduce the friction caused by the internal friction of the structural material during the torsional vibration of the structure. energy loss. The spiral groove structure can realize the conversion of longitudinal vibration into torsional vibration, and the first spiral groove 5-1 and the second spiral groove 2-1 have the opposite direction of rotation, which is conducive to the formation of a stepped hollow cylinder-cone complex on the longitudinal-torsion conversion hollow cylinder The torsional vibration in the opposite direction can excite the torsional vibration of the device with lower energy. The reverse arrangement of the longitudinal-torsional conversion hollow cylinder and the cylindrical longitudinal-torsional conversion body enables the longitudinal-torsional conversion structure to reduce the resistance of torsional vibration, so that the device can achieve high-efficiency torsional vibration at the same vibration energy. The first helical groove 5-1 and the second helical groove 2-1 can be through-hole shape helical grooves, and the parameters such as length, pitch, width of the first helical groove 5-1 and the second helical groove 2-1 are identical, can pass Controlling parameters such as the length, pitch, and width of the first helical groove 5-1 and the second helical groove 2-1 changes the efficiency of longitudinal-torsion conversion. The penetrating central threaded through hole 16 structure refers to the center where the axial positioning shaft 14, the cylindrical longitudinal-torsional conversion body 5, the conical torsional vibration amplifier 12, the cylindrical longitudinal vibration amplifier 6 and the longitudinal-torsional conversion hollow cylinder are jointly established. The threaded through hole is used to install the pre-tightening bolt 1 , and the frequency of the structure and the amplification factor of torsional vibration can be changed by controlling the diameter of the central threaded through hole 16 . The pre-tightened bolt stepped hollow cone complex, the longitudinal-torsion conversion hollow cylinder 2, an even number of piezoelectric ceramic sheets 9 and a plurality of electrode sheets 10 are connected together, and provide compressive stress to the piezoelectric ceramic sheets so that the piezoelectric ceramics are in the Compressed state, thereby inhibiting the material damage of piezoelectric ceramics caused by the tension generated when subjected to the same electric field as the polarization direction. The axial positioning shaft is used for axial positioning of the piezoelectric ceramic sheet and the longitudinal-torsion conversion hollow cylinder, and ensures that the excitation direction of the longitudinal vibration always coincides with the axis of the device. The structure of the cylindrical longitudinal vibration amplifying body 6 is a slender part, and the amplification factor of the longitudinal vibration amplitude can be controlled by changing the diameter and length of this section of the structure. The conical torsional vibration amplifying body 12 has a transitional frustum structure. The conical torsional vibration amplifying body 12 and the cylindrical longitudinal vibration amplifying body 6 are beneficial to reduce shear force and water addition during processing. The resonance frequency of the longitudinal-torsional resonance ultrasonic vibration device of the present invention is above 20KHz.
具体实施方式二：结合图1和图3说明，本实施方式的多条第一螺旋槽5-1对应的圆心角之和为360°。如此设置，使得纵扭转化效率达到最大，使扭转振动节面与纵向振动节面重合，阶梯式中空筒锥复合体和纵扭转换空心圆柱体扭转动量相平衡；在端节面处进行安装，结构的扭转振动对安装结构(如机床主轴)不产生影响；在端节面处安装，使得安装方式不会影响结构的扭转振动，能够更有效率地利用结构的扭转振型。其它与具体实施方式一相同。Specific Embodiment 2: Referring to FIG. 1 and FIG. 3 , the sum of the central angles corresponding to the plurality of first helical grooves 5 - 1 in this embodiment is 360°. Such setting maximizes the conversion efficiency of longitudinal torsion, makes the nodal surface of torsional vibration coincide with the nodal surface of longitudinal vibration, and balances the torsional momentum of the stepped hollow cylinder-cone complex and the hollow cylinder for longitudinal torsion conversion; it is installed at the end nodal surface, The torsional vibration of the structure does not affect the installation structure (such as the spindle of the machine tool); it is installed at the end section surface, so that the installation method will not affect the torsional vibration of the structure, and the torsional vibration mode of the structure can be used more efficiently. Others are the same as in the first embodiment.
具体实施方式三：结合图1和图4说明，本实施方式的多条第二螺旋槽2-1对应的圆心角之和为360°。如此设置，使得纵扭转化效率达到最大，使扭转振动节面与纵向振动节面重合，阶梯式中空筒锥复合体和纵扭转换空心圆柱体扭转动量相平衡；在端节面处进行安装，结构的扭转振动对安装结构(如机床主轴)不产生影响；在端节面处安装，使得安装方式不会影响结构的扭转振动，能够更有效率地利用结构的扭转振型。其它与具体实施方式一或二相同。Embodiment 3: In conjunction with FIG. 1 and FIG. 4 , the sum of the central angles corresponding to the plurality of second helical grooves 2 - 1 in this embodiment is 360°. Such setting maximizes the conversion efficiency of longitudinal torsion, makes the nodal surface of torsional vibration coincide with the nodal surface of longitudinal vibration, and balances the torsional momentum of the stepped hollow cylinder-cone complex and the hollow cylinder for longitudinal torsion conversion; it is installed at the end nodal surface, The torsional vibration of the structure does not affect the installation structure (such as the spindle of the machine tool); it is installed at the end section surface, so that the installation method will not affect the torsional vibration of the structure, and the torsional vibration mode of the structure can be used more efficiently. Others are the same as in the first or second embodiment.
具体实施方式四：结合图1和图4说明，本实施方式的阶梯式中空筒锥复合体和纵扭转换空心圆柱体2采用相同的材料制成。阶梯式中空筒锥复合体和纵扭转换空心圆柱体2可为38CrMoAl或不锈钢或钛合金等材料。使用方便，取材容易。其它与具体实施方式一相同。Specific Embodiment 4: In conjunction with FIG. 1 and FIG. 4 , the stepped hollow cylindrical-cone complex and the vertical-torsion conversion hollow cylinder 2 of this embodiment are made of the same material. The stepped hollow barrel-cone composite body and the vertical-torsion conversion hollow cylinder 2 can be materials such as 38CrMoAl, stainless steel or titanium alloy. Easy to use and easy to obtain materials. Others are the same as in the first embodiment.
具体实施方式五：结合图1和图2说明，本实施方式的电极片10为铜电极片。相邻两片压电陶瓷片的极化方向相反，且所有压电陶瓷正极均不与阶梯式中空筒锥复合体、纵扭转换空心圆柱体2接触。并且电极片10将压电陶瓷片所有正极、所有负极分别连接在一起，负极与阶梯式中空筒锥复合体、纵扭转换空心圆柱体相连并接地。其它与具体实施方式一、二或四相同。Embodiment 5: In conjunction with FIG. 1 and FIG. 2 , the electrode sheet 10 of this embodiment is a copper electrode sheet. The polarization directions of two adjacent piezoelectric ceramic sheets are opposite, and all piezoelectric ceramic positive electrodes are not in contact with the stepped hollow cylindrical-cone composite body and the vertical-torsion conversion hollow cylinder 2 . And the electrode sheet 10 connects all the positive poles and all the negative poles of the piezoelectric ceramic sheet together respectively, and the negative poles are connected with the stepped hollow cylinder-cone complex and the longitudinal-torsion conversion hollow cylinder and grounded. Others are the same as the specific embodiment 1, 2 or 4.
具体实施方式六：结合图3说明，本实施方式所述装置还包括主轴安装板15，主轴安装板15设置在与轴向定位轴14相邻的圆柱形纵扭转换体5的一端，主轴安装板15的靠近轴向定位轴14一侧的安装面15-1与靠近轴向定位轴14的圆柱形纵扭转换体5的端节面5-2之间圆弧过渡。本实施方式的主轴安装板15用于本发明纵扭共振超声振动装置与机床主轴的连接，其安装面15-1与端节面15-1之间有一定厚度，并采取二次曲线逐渐圆弧过渡的结构，使得整个装置的安装在不影响超声振动的同时具有较高的可靠性。其它与具体实施方式五相同。Specific Embodiment Six: In conjunction with Fig. 3, the device described in this embodiment also includes a main shaft mounting plate 15, which is arranged at one end of the cylindrical vertical-torsion conversion body 5 adjacent to the axial positioning shaft 14, and the main shaft is installed There is a circular arc transition between the mounting surface 15 - 1 of the plate 15 on the side close to the axial positioning shaft 14 and the end section surface 5 - 2 of the cylindrical longitudinal-torque conversion body 5 close to the axial positioning shaft 14 . The spindle mounting plate 15 of this embodiment is used for the connection between the longitudinal torsional resonance ultrasonic vibration device of the present invention and the spindle of the machine tool. There is a certain thickness between the mounting surface 15-1 and the end section surface 15-1, and the quadratic curve is gradually rounded. The structure of the arc transition makes the installation of the whole device have high reliability without affecting the ultrasonic vibration. Others are the same as in the fifth embodiment.
具体实施方式七：结合图2和图3说明，本实施方式的圆柱形纵向振动放大体6的末端内腔7为圆锥形结构。本实施方式的内腔7结构前端具有锥形孔结构，可以与锥形刀柄或者弹簧夹头合用而实现快速换刀。其它与具体实施方式一、二、四或六相同。Embodiment 7: In conjunction with FIG. 2 and FIG. 3 , the end cavity 7 of the cylindrical longitudinal vibration amplifying body 6 of this embodiment is a conical structure. In this embodiment, the front end of the cavity 7 has a tapered hole structure, which can be used together with a tapered tool handle or collet to realize quick tool change. Others are the same as the specific embodiment 1, 2, 4 or 6.
具体实施方式八：结合图2和图3说明，本实施方式的圆柱形纵向振动放大体6的末端加工有刀具固紧螺纹13。如此设置，有利于固定刀具，可以实现快速换刀，因而在实际应用中非常简便易行。其它与具体实施方式七相同。Embodiment 8: As described in conjunction with FIG. 2 and FIG. 3 , the end of the cylindrical longitudinal vibration amplifying body 6 of this embodiment is processed with a tool fastening thread 13 . Such setting is beneficial to fixing the tool and can realize rapid tool change, so it is very simple and easy in practical application. Others are the same as in the seventh embodiment.
本发明纵扭共振超声振动装置的实例进行有限元分析可得到该装置的共振频率为25415Hz，共振时扭转振幅与纵向振动幅值之比为0.48μrad/μm，阶梯式中空筒锥复合体末端外围扭转振动线速度是纵向振动速度的6.9倍。The finite element analysis of the example of the longitudinal torsional resonance ultrasonic vibration device of the present invention can obtain that the resonant frequency of the device is 25415 Hz, the ratio of the torsional amplitude and the longitudinal vibration amplitude during resonance is 0.48 μrad/μm, and the outer periphery of the end of the stepped hollow barrel-cone complex is The linear velocity of torsional vibration is 6.9 times of the longitudinal vibration velocity.
以上所述纵扭共振超声振动装置仅为本发明的一种实例，并不对本发明进行限制，凡是与本发明具有相同设计原则的类似装置均在本发明的保护范围之内。The above-mentioned longitudinal torsional resonance ultrasonic vibration device is only an example of the present invention, and does not limit the present invention. All similar devices with the same design principle as the present invention are within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811527.7ACN105478332A (en) | 2015-11-20 | 2015-11-20 | Longitudinal-torsional resonance ultrasonic vibration device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811527.7ACN105478332A (en) | 2015-11-20 | 2015-11-20 | Longitudinal-torsional resonance ultrasonic vibration device |
| Publication Number | Publication Date |
|---|---|
| CN105478332Atrue CN105478332A (en) | 2016-04-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510811527.7APendingCN105478332A (en) | 2015-11-20 | 2015-11-20 | Longitudinal-torsional resonance ultrasonic vibration device |
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