CN102873558B - Turbine blade clamp based on piezoelectric ceramics and quick posture adjusting method - Google Patents
Turbine blade clamp based on piezoelectric ceramics and quick posture adjusting method Download PDFInfo
- Publication number
- CN102873558B CN102873558B CN201210355478.7A CN201210355478A CN102873558B CN 102873558 B CN102873558 B CN 102873558B CN 201210355478 A CN201210355478 A CN 201210355478A CN 102873558 B CN102873558 B CN 102873558B
- Authority
- CN
- China
- Prior art keywords
- positioning pin
- blade
- turbine blade
- seat
- eddy current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 53
- 238000012806 monitoring device Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 238000013528 artificial neural network Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
一种基于压电陶瓷的涡轮机叶片夹具与位姿快速调节方法，夹具采用六个销钉对涡轮机叶片的叶身曲面进行定位，用螺杆对叶片两端的端平面进行夹紧，定位销钉底部与压电陶瓷的位移输出杆相配合，位姿快速调节方法利用压电陶瓷位移输出杆长度随所接电压变化而变化的特性，在叶片夹紧后，根据电涡流位移传感器采集的叶片榫头在X、Y、Z方向上位姿变化的数据，调节压电陶瓷所接电压来改变定位销钉与叶片的相对位置，达到调节叶片位姿的目的，该方法提高了涡轮机叶片夹具的灵活性与叶片的定位精度，节约了叶片装夹时间，降低了生产成本，提高了经济效益。
A piezoelectric ceramic-based turbine blade fixture and a quick adjustment method for its position and posture. The fixture uses six pins to position the blade body surface of the turbine blade, and uses a screw to clamp the end planes at both ends of the blade. The bottom of the positioning pin is in contact with the piezoelectric The ceramic displacement output rod is matched, and the quick adjustment method of position and posture utilizes the characteristic that the length of the piezoelectric ceramic displacement output rod changes with the change of the connected voltage. According to the position change data in the Z direction, adjust the voltage connected to the piezoelectric ceramic to change the relative position between the positioning pin and the blade to achieve the purpose of adjusting the blade position. This method improves the flexibility of the turbine blade fixture and the positioning accuracy of the blade, saving energy. The blade clamping time is shortened, the production cost is reduced, and the economic benefit is improved.
Description
技术领域 technical field
本发明涉及涡轮机叶片的夹具领域，特别涉及一种基于压电陶瓷的涡轮机叶片夹具与位姿快速调节方法。The invention relates to the field of fixtures for turbine blades, in particular to a piezoelectric ceramic-based turbine blade fixture and a method for quickly adjusting its position and posture.
背景技术 Background technique
涡轮机是一种将气体或液体燃料燃烧产生的热能转化为机械功的旋转式叶轮动力机械装置，广泛应用于能源、航空、交通、国防等领域，是适应我国能源结构调整和航空工业发展的关键重大装备。高温涡轮叶片处于燃气轮机温度最高（1400℃以上）、应力最复杂、环境最恶劣的部位，其价值占整机的近50%，是燃气轮机中的关键部件。叶片的加工精度就成为影响叶片寿命及性能重要因素之一。由于叶身曲面比较复杂，如何保证叶片机械加工中的准确定位和合理夹紧也就成为确保叶片在高温、高速旋转等恶劣环境下使用寿命的关键。A turbine is a rotary impeller power mechanical device that converts the heat energy generated by the combustion of gas or liquid fuel into mechanical work. It is widely used in energy, aviation, transportation, national defense and other fields. It is the key to adapt to the adjustment of my country's energy structure and the development of the aviation industry. major equipment. High-temperature turbine blades are located in the part of the gas turbine with the highest temperature (above 1400°C), the most complex stress, and the harshest environment. Its value accounts for nearly 50% of the whole machine and is a key component of the gas turbine. The processing accuracy of the blade has become one of the important factors affecting the life and performance of the blade. Due to the complex surface of the blade body, how to ensure accurate positioning and reasonable clamping in the machining of the blade becomes the key to ensure the service life of the blade in harsh environments such as high temperature and high speed rotation.
目前，在叶片榫头的加工中，生产厂家一般都采用低熔点合金包容箱型法。中国专利文件CN101417396A公开了一种基于微分几何的夹具精度理论、定位点的形封闭准则的新型复杂曲面定位与夹紧快速算法。该文件中所阐述的发明的缺点是定位销钉长度固定不可调，涡轮机叶片在夹紧后位姿无法更改，在夹紧过程中没有对叶片关键区域的位姿变化进行实时监测，夹具装置中设计的定位销钉一旦加工完成后，整个夹具可调性差、重复使用效率低下、螺杆旋转夹紧后叶片的位姿不可调。At present, in the processing of blade tenons, manufacturers generally adopt the low melting point alloy containing box method. Chinese patent document CN101417396A discloses a novel complex surface positioning and fast clamping algorithm based on the fixture precision theory of differential geometry and the shape closure criterion of positioning points. The disadvantage of the invention described in this document is that the length of the positioning pin is fixed and cannot be adjusted, the position of the turbine blade cannot be changed after clamping, and there is no real-time monitoring of the position change of the key area of the blade during the clamping process. Once the positioning pins are processed, the entire fixture has poor adjustability, low reuse efficiency, and the position and posture of the blade after the screw is rotated and clamped cannot be adjusted.
发明内容 Contents of the invention
为了克服上述现有技术的缺点，本发明的目的在于提供一种基于压电陶瓷的涡轮机叶片夹具与位姿快速调节方法，能够现叶片位姿的快速、精准的调节以达到加工前叶片夹紧位姿的精度要求。In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a piezoelectric ceramic-based turbine blade clamp and a quick adjustment method for position and posture, which can achieve rapid and accurate adjustment of the blade position and posture to achieve blade clamping before processing Pose accuracy requirements.
为了达到上述目的，本发明采取的技术方案为：In order to achieve the above object, the technical scheme that the present invention takes is:
一种基于压电陶瓷的涡轮机叶片夹具，包括叶片定位装置、叶片夹紧装置和叶片榫头位姿信号监测装置，叶片定位装置、叶片夹紧装置和叶片榫头位姿信号监测装置都固定在基座平台4上；A turbine blade fixture based on piezoelectric ceramics, including a blade positioning device, a blade clamping device, and a blade tenon position and attitude signal monitoring device, and the blade positioning device, blade clamping device, and blade tenon position and attitude signal monitoring device are all fixed on the base on platform 4;
所述的叶片夹紧装置包括第一夹紧座8和第二夹紧座14，第一夹紧座8与第二夹紧座14固定在基座平台4的长轴线上，第一夹紧座8上布有竖直方向的第一螺杆9，用于加载夹紧涡轮机叶片5的尾部，第二夹紧座14上设有安装导向孔2，并布有竖直方向的第二螺杆11、第三螺杆12以及水平方向的第四螺杆1、第五螺杆13，用于加载夹紧涡轮机叶片5的头部；The blade clamping device includes a first clamping seat 8 and a second clamping seat 14, the first clamping seat 8 and the second clamping seat 14 are fixed on the long axis of the base platform 4, the first clamping seat The seat 8 is provided with a vertical first screw rod 9 for loading and clamping the tail of the turbine blade 5, and the second clamping seat 14 is provided with an installation guide hole 2, and is provided with a vertical second screw rod 11 , the third screw rod 12 and the fourth screw rod 1 and the fifth screw rod 13 in the horizontal direction are used for loading and clamping the head of the turbine blade 5;
所述的叶片定位装置包括第一定位销钉3、第二定位销钉6、第三定位销钉7、第四定位销钉10、第五定位销钉16、第六定位销钉17，还包括第一销钉固定座15、第二销钉固定座18，其中第一定位销钉3、第二定位销钉6、第三定位销钉7、第六定位销钉17竖直固定在上述基座平台4上，在第二夹紧座14右侧的第一定位销钉3中心和第六定位销钉17中心连线与第二螺杆11中心和第三螺杆12中心连线成30°角，在第一夹紧座8的左侧的第二定位销钉6中心和第三定位销钉7中心连线与基座平台4的长轴线成30°角，第四定位销钉10、第五定位销钉16分别水平安装在第二销钉固定座18与第一销钉固定座15上,第一销钉固定座15与第二销钉固定座18平行固定在基座平台4的长轴线两侧；The blade positioning device includes a first positioning pin 3, a second positioning pin 6, a third positioning pin 7, a fourth positioning pin 10, a fifth positioning pin 16, a sixth positioning pin 17, and a first pin fixing seat 15. The second pin fixing seat 18, wherein the first positioning pin 3, the second positioning pin 6, the third positioning pin 7, and the sixth positioning pin 17 are vertically fixed on the above-mentioned base platform 4, on the second clamping seat 14 The line connecting the center of the first positioning pin 3 on the right side and the center of the sixth positioning pin 17 forms an angle of 30° with the center line connecting the center of the second screw 11 and the center of the third screw 12. The connecting line between the center of the second positioning pin 6 and the center of the third positioning pin 7 forms an angle of 30° with the long axis of the base platform 4, and the fourth positioning pin 10 and the fifth positioning pin 16 are installed horizontally on the second pin fixing seat 18 and the On a pin fixing seat 15, the first pin fixing seat 15 and the second pin fixing seat 18 are fixed on both sides of the long axis of the base platform 4 in parallel;
所述的叶片榫头位姿信号监测装置包括第一法兰座20、第二法兰座19、第一电涡流位移传感器21、第二电涡流位移传感器22、第三电涡流位移传感器23、第四电涡流位移传感器24、第五电涡流位移传感器25、第六电涡流位移传感器26，第一法兰座20与第二法兰座19固定在基座平台4上，第一法兰座20与第二夹紧座14平行且其长轴方向的中心距涡轮机叶片5的榫头端面不超过10mm，第二法兰座19在涡轮机叶片5的榫齿端面外侧并间距不超过20mm，第三电涡流位移传感器23与第六电涡流位移传感器26对称固定在第一法兰座20的正X方向上，第一电涡流位移传感器21与第二电涡流位移传感器22固定在第一法兰座20的Z方向上，第五电涡流位移传感器25与第四电涡流位移传感器24固定在第二法兰座19的Y方向上。The blade tenon position and posture signal monitoring device includes a first flange seat 20, a second flange seat 19, a first eddy current displacement sensor 21, a second eddy current displacement sensor 22, a third eddy current displacement sensor 23, a Four eddy current displacement sensors 24, the fifth eddy current displacement sensor 25, the sixth eddy current displacement sensor 26, the first flange seat 20 and the second flange seat 19 are fixed on the base platform 4, the first flange seat 20 Parallel to the second clamping seat 14 and its center in the long axis direction is not more than 10mm from the tenon end face of the turbine blade 5, the second flange seat 19 is outside the tenon tooth end face of the turbine blade 5 and the distance is not more than 20mm, the third electric The eddy current displacement sensor 23 and the sixth eddy current displacement sensor 26 are symmetrically fixed on the positive X direction of the first flange seat 20, and the first eddy current displacement sensor 21 and the second eddy current displacement sensor 22 are fixed on the first flange seat 20 In the Z direction, the fifth eddy current displacement sensor 25 and the fourth eddy current displacement sensor 24 are fixed on the Y direction of the second flange seat 19 .
所述的定位销钉的底部设有凹孔A，凹孔A与压电陶瓷C头部的位移输出杆是相配合的，所有的压电陶瓷C均是安装在销钉固定座或基座平台B内部的，安装孔都是通孔以方便压电陶瓷的电源线接入，并且所有的通孔都设计有限位凸台以固定压电陶瓷C的位置。The bottom of the positioning pin is provided with a concave hole A, and the concave hole A is matched with the displacement output rod of the head of the piezoelectric ceramic C, and all the piezoelectric ceramics C are installed on the pin fixing seat or the base platform B Inside, the mounting holes are all through holes to facilitate the access of the piezoelectric ceramic power cord, and all through holes are designed with limited bosses to fix the position of the piezoelectric ceramic C.
一种基于压电陶瓷的涡轮机叶片夹具的位姿快速调节方法，包括以下步骤A method for quickly adjusting the pose of a piezoelectric ceramic-based turbine blade fixture, comprising the following steps
第一步，利用LABVIEW设计虚拟仪器记录榫头位姿监测装置中电涡流位移传感器所采集到涡轮机叶片5榫头位姿初始状态量Wa=（Wa1,Wa2，Wa3，Wa4，Wa5，Wa6），在对涡轮机叶片5夹紧后，记录其榫头位姿的稳定状态量Wb=（Wb1,Wb2,Wb3,Wb4,Wb5,Wb6），计算得到位姿状态变化量ΔW＝Wa-Wb；The first step is to use LABVIEW to design a virtual instrument to record the initial state quantity W a = (W a1 , W a2 , W a3 , W a4 , W a5 , W a6 ), after clamping the turbine blade 5, record the stable state quantity W b = (W b1 , W b2 , W b3 , W b4 , W b5 , W b6 ) of the tenon pose, and calculate the pose State change ΔW=W a -W b ;
第二步，假定涡轮机叶片5在夹紧后的位姿要达到定位精度要求时需调节定位销钉的位移量为L=（L1,L2,L3,L4,L5,L6），采用神经网络算法建立叶片榫头位姿变化量与定位销钉理论位移调节量之间的函数关系L=f（ΔW）；In the second step, assuming that the position and posture of the turbine blade 5 after clamping is to meet the positioning accuracy requirements, the displacement of the positioning pin needs to be adjusted as L=(L 1 , L 2 , L 3 , L 4 , L 5 , L 6 ) , the neural network algorithm is used to establish the functional relationship L=f(ΔW) between the change of blade tenon and the theoretical displacement adjustment of the positioning pin;
第三步，设压电陶瓷C的电压调节值为U=(U1,U2,U3,U4,U5,U6),根据压电陶瓷C的电压-位移参数数据，建立叶片榫头位姿变化量W、定位销钉理论位移调节量L与压电陶瓷电压调节量U三者之间的函数关系U=f(L,W)，并存入计算机中；The third step is to set the voltage adjustment value of the piezoelectric ceramic C as U=(U 1 , U 2 , U 3 , U 4 , U 5 , U 6 ), and establish the blade according to the voltage-displacement parameter data of the piezoelectric ceramic C. The functional relationship U=f(L,W) between the tenon head position change amount W, the positioning pin theoretical displacement adjustment amount L, and the piezoelectric ceramic voltage adjustment amount U is stored in the computer;
第四步，在每个涡轮机叶片5进行加工夹紧时，根据采集到的涡轮机叶片5的榫头位姿变化数据直接调入计算机数据库中得到应该调节的压电陶瓷C的电压值U，并对对应的压电陶瓷C所接电压进行调节即可。In the fourth step, when each turbine blade 5 is processed and clamped, according to the collected tenon pose change data of the turbine blade 5, it is directly transferred into the computer database to obtain the voltage value U of the piezoelectric ceramic C that should be adjusted, and the The voltage connected to the corresponding piezoelectric ceramic C can be adjusted.
本发明具有以下优点和有益效果The present invention has the following advantages and beneficial effects
1）采用定位销钉对涡轮机叶片的叶身曲面进行定位，相对于传统的低熔点合金箱型包容法，工艺流程更简单，耗能更少，制造成本低，有害气体排放大幅度降低。1) Positioning pins are used to position the airfoil surface of the turbine blade. Compared with the traditional low-melting point alloy box-type containment method, the process flow is simpler, the energy consumption is less, the manufacturing cost is low, and the harmful gas emission is greatly reduced.
2）在对涡轮机叶片定位夹紧过程中对叶片关键区域（榫头）进行位姿变化数据的实时监测和采集，对每个叶片的实际工况进行详细的数据记录，可形成丰富的、有实际分析价值的叶片加工数据库。2) In the process of positioning and clamping the turbine blades, real-time monitoring and collection of pose change data of the key areas (tenons) of the blades, and detailed data records of the actual working conditions of each blade can form a rich and realistic Analytical value of blade machining database.
3）采用压电陶瓷与定位销钉相配合的装置结构，能有效控制、改变销钉与叶片的相对位置，可在叶片夹紧后可以充分的、快速的、精确的调整叶片的位姿，以满足叶片在加工前的夹紧精度要求，降低废品率。3) The device structure of piezoelectric ceramics and positioning pins is used, which can effectively control and change the relative position of the pins and the blades, and can fully, quickly and accurately adjust the posture of the blades after the blades are clamped to meet the The clamping accuracy of the blade before processing is required to reduce the scrap rate.
4）本发明整体上缩短了涡轮机叶片的加工时间，提高了加工效率，增强了夹具的重复使用性和灵活性，同时在夹具使用上节约了加工成本提高了经济效益。4) The present invention shortens the processing time of the turbine blade as a whole, improves the processing efficiency, enhances the reusability and flexibility of the fixture, and saves the processing cost and improves the economic benefit in the use of the fixture.
附图说明：Description of drawings:
图1为本发明的整体装配图。Fig. 1 is the overall assembly drawing of the present invention.
图2为图1的俯视图。FIG. 2 is a top view of FIG. 1 .
图3为本发明涡轮机叶片榫头位姿信号监测装置的等轴测图。Fig. 3 is an isometric view of the turbine blade tenon position and attitude signal monitoring device of the present invention.
图4为定位销钉与压电陶瓷的安装配合示意图。Fig. 4 is a schematic diagram of the installation and cooperation between the positioning pin and the piezoelectric ceramic.
具体实施方式：Detailed ways:
以下结合附图对本发明做详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings.
参照图1与图2，一种基于压电陶瓷的涡轮机叶片夹具，包括叶片定位装置、叶片夹紧装置和叶片榫头位姿信号监测装置，叶片定位装置、叶片夹紧装置和叶片榫头位姿信号监测装置都固定在基座平台4上；Referring to Figure 1 and Figure 2, a turbine blade fixture based on piezoelectric ceramics, including a blade positioning device, a blade clamping device and a blade tenon position and attitude signal monitoring device, a blade positioning device, a blade clamping device and a blade tenon position and attitude signal The monitoring devices are all fixed on the base platform 4;
所述的叶片夹紧装置包括第一夹紧座8和第二夹紧座14，第一夹紧座8与第二夹紧座14通过内六角螺钉固定在基座平台4的长轴线上，第一夹紧座8上布有竖直方向的第一螺杆9用于加载夹紧涡轮机叶片5的尾部，第二夹紧座14上设有安装导向孔2，并布有竖直方向的第二螺杆11、第三螺杆12以及水平方向的第四螺杆1、第五螺杆13用于加载夹紧涡轮机叶片5的头部；The blade clamping device includes a first clamping seat 8 and a second clamping seat 14, and the first clamping seat 8 and the second clamping seat 14 are fixed on the long axis of the base platform 4 by hexagon socket screws, The first clamping seat 8 is provided with a vertical first screw rod 9 for loading and clamping the tail of the turbine blade 5, and the second clamping seat 14 is provided with an installation guide hole 2, and is provided with a vertical first screw rod 9. The second screw 11, the third screw 12, the fourth screw 1 in the horizontal direction, and the fifth screw 13 are used to load and clamp the head of the turbine blade 5;
所述的叶片定位装置包括第一定位销钉3、第二定位销钉6、第三定位销钉7、第四定位销钉10、第五定位销钉16、第六定位销钉17，还包括第一销钉固定座15、第二销钉固定座18，其中第一定位销钉3、第二定位销钉6、第三定位销钉7、第六定位销钉17竖直固定在上述基座平台4上，在第二夹紧座14右侧的第一定位销钉3中心和第六定位销钉17中心连线与第二螺杆11中心和第三螺杆12中心连线成30°角，在第一夹紧座8的左侧的第二定位销钉6中心和第三定位销钉7中心连线与基座平台4的长轴线成30°角，第四定位销钉10、第五定位销钉16分别水平安装在第二销钉固定座18与第一销钉固定座15上,第一销钉固定座15与第二销钉固定座18通过内六角螺钉平行固定在基座平台4的长轴线两侧；The blade positioning device includes a first positioning pin 3, a second positioning pin 6, a third positioning pin 7, a fourth positioning pin 10, a fifth positioning pin 16, a sixth positioning pin 17, and a first pin fixing seat 15. The second pin fixing seat 18, wherein the first positioning pin 3, the second positioning pin 6, the third positioning pin 7, and the sixth positioning pin 17 are vertically fixed on the above-mentioned base platform 4, on the second clamping seat 14 The line connecting the center of the first positioning pin 3 on the right side and the center of the sixth positioning pin 17 forms an angle of 30° with the center line connecting the center of the second screw 11 and the center of the third screw 12. The connecting line between the center of the second positioning pin 6 and the center of the third positioning pin 7 forms an angle of 30° with the long axis of the base platform 4, and the fourth positioning pin 10 and the fifth positioning pin 16 are installed horizontally on the second pin fixing seat 18 and the On a pin fixing seat 15, the first pin fixing seat 15 and the second pin fixing seat 18 are fixed on both sides of the long axis of the base platform 4 in parallel by hexagon socket head cap screws;
参照图3，所述的涡轮机叶片榫头位姿信号监测装置包括第一法兰座20、第二法兰座19、第一电涡流位移传感器21、第二电涡流位移传感器22、第三电涡流位移传感器23、第四电涡流位移传感器24、第五电涡流位移传感器25、第六电涡流位移传感器26，第一法兰座20与第二法兰座19通过内六角螺钉固定在基座平台4上，第一法兰座20与第二夹紧座14平行且其长轴方向的中心距涡轮机叶片5的榫头端面不超过10mm，第二法兰座19在涡轮机叶片5的榫齿端面外侧并间距不超过20mm，第三电涡流位移传感器23与第六电涡流位移传感器26对称固定在第一法兰座20的正X方向上，这两个传感器探头中心离基座平台4的上表面43mm，以有效的实时监测叶片榫头在夹紧过程中X方向的位姿变化数据；第一电涡流位移传感器21与第二电涡流位移传感器22固定在第一法兰座20的正Z方向上，这两个传感器探头中心与上述X方向上的2个传感器探头中心完全处于一个平面内，用于监测叶片榫头在夹紧过程中Z方向的位姿变化数据；第四电涡流位移传感器24与五电涡流位移传感器25固定在法兰座19的正Y方向上，这两个传感器探头中心离基座平台4的上表面43mm，离叶片榫齿端面1.5-3mm，用于监测叶片榫头在夹紧过程中Y方向的位姿变化数据。Referring to Fig. 3, the described turbine blade tenon position and attitude signal monitoring device comprises a first flange seat 20, a second flange seat 19, a first eddy current displacement sensor 21, a second eddy current displacement sensor 22, a third eddy current The displacement sensor 23, the fourth eddy current displacement sensor 24, the fifth eddy current displacement sensor 25, the sixth eddy current displacement sensor 26, the first flange seat 20 and the second flange seat 19 are fixed on the base platform by hexagon socket screws 4, the first flange seat 20 is parallel to the second clamping seat 14 and its center in the long axis direction is no more than 10 mm from the tenon end face of the turbine blade 5, and the second flange seat 19 is outside the tenon tooth end face of the turbine blade 5 And the spacing is not more than 20mm, the third eddy current displacement sensor 23 and the sixth eddy current displacement sensor 26 are symmetrically fixed on the positive X direction of the first flange seat 20, and the center of the two sensor probes is away from the upper surface of the base platform 4 43mm, to effectively monitor the position change data of the blade tenon in the X direction during the clamping process in real time; the first eddy current displacement sensor 21 and the second eddy current displacement sensor 22 are fixed on the positive Z direction of the first flange seat 20 , the centers of these two sensor probes are completely in the same plane as the centers of the above two sensor probes in the X direction, and are used to monitor the position and orientation change data of the blade tenon in the Z direction during the clamping process; the fourth eddy current displacement sensor 24 and The five-current eddy current displacement sensor 25 is fixed on the positive Y direction of the flange seat 19. The center of the two sensor probes is 43mm away from the upper surface of the base platform 4, and 1.5-3mm away from the end face of the tenon tooth of the blade. The pose change data in the Y direction during the tight process.
参照图4，所述的定位销钉的底部设有凹孔A，凹孔A与压电陶瓷C头部的位移输出杆是相配合的，所有的压电陶瓷C均是安装在销钉固定座或基座平台B内部的，安装孔都是通孔以方便压电陶瓷C的电源线接入，并且所有的通孔都设计有限位凸台以固定压电陶瓷C的位置。Referring to Fig. 4, the bottom of the positioning pin is provided with a concave hole A, and the concave hole A is matched with the displacement output rod of the head of the piezoelectric ceramic C, and all the piezoelectric ceramic C are installed on the pin fixing seat or Inside the base platform B, the mounting holes are all through holes to facilitate the access of the power cord of the piezoelectric ceramic C, and all the through holes are designed with limited bosses to fix the position of the piezoelectric ceramic C.
一种基于压电陶瓷的涡轮机叶片夹具的位姿快速调节方法，包括以下步骤A method for quickly adjusting the pose of a piezoelectric ceramic-based turbine blade fixture, comprising the following steps
第一步：利用LABVIEW设计虚拟仪器记录榫头位姿监测装置中电涡流位移传感器所采集到涡轮机叶片5榫头位姿初始状态量Wa=（Wa1,Wa2，Wa3，Wa4，Wa5，Wa6），在对涡轮机叶片5夹紧后，记录其榫头位姿的稳定状态量Wb=（Wb1,Wb2,Wb3,Wb4,Wb5,Wb6），计算得到位姿状态变化量ΔW＝Wa-Wb；Step 1: use LABVIEW to design a virtual instrument to record the initial state quantity W a = (W a1 , W a2 , W a3 , W a4 , W a5 , W a6 ), after clamping the turbine blade 5, record the stable state quantity Wb=(W b1 , W b2 , W b3 , W b4 , W b5 , W b6 ) of the tenon pose, and calculate the pose state Variation ΔW=W a -W b ;
第二步：假定涡轮机叶片5在夹紧后的位姿要达到定位精度要求时需调节定位销钉的位移量为L=（L1,L2,L3,L4,L5,L6），采用神经网络算法建立叶片榫头位姿变化量与定位销钉理论位移调节量之间的函数关系L=f（ΔW）；Step 2: Assuming that the position and posture of the turbine blade 5 after clamping is to meet the positioning accuracy requirements, the displacement of the positioning pin needs to be adjusted as L=(L 1 , L 2 , L 3 , L 4 , L 5 , L 6 ) , the neural network algorithm is used to establish the functional relationship L=f(ΔW) between the change of blade tenon and the theoretical displacement adjustment of the positioning pin;
第三步：设压电陶瓷C的电压调节值为U=(U1,U2,U3,U4,U5,U6),根据压电陶瓷C的电压-位移参数数据，建立叶片榫头位姿变化量W、定位销钉理论位移调节量L与压电陶瓷电压调节量U三者之间的函数关系U=f(L,W)，并存入计算机中；Step 3: Set the voltage adjustment value of piezoelectric ceramic C as U=(U 1 , U 2 , U 3 , U 4 , U 5 , U 6 ), and establish the blade according to the voltage-displacement parameter data of piezoelectric ceramic C The functional relationship U=f(L,W) between the tenon head position change amount W, the positioning pin theoretical displacement adjustment amount L, and the piezoelectric ceramic voltage adjustment amount U is stored in the computer;
第四步：在每个涡轮机叶片5进行加工夹紧时，根据采集到的涡轮机叶片5的榫头位姿变化数据直接调入计算机数据库中得到应该调节的压电陶瓷C的电压值U，并对对应的压电陶瓷C所接电压进行调节即可。The fourth step: when each turbine blade 5 is processed and clamped, according to the collected tenon position and orientation change data of the turbine blade 5, it is directly transferred into the computer database to obtain the voltage value U of the piezoelectric ceramic C that should be adjusted, and the The voltage connected to the corresponding piezoelectric ceramic C can be adjusted.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355478.7A CN102873558B (en) | 2012-09-21 | 2012-09-21 | Turbine blade clamp based on piezoelectric ceramics and quick posture adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355478.7A CN102873558B (en) | 2012-09-21 | 2012-09-21 | Turbine blade clamp based on piezoelectric ceramics and quick posture adjusting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873558A CN102873558A (en) | 2013-01-16 |
| CN102873558B true CN102873558B (en) | 2014-12-10 |
Family
ID=47475190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210355478.7A Expired - Fee Related CN102873558B (en) | 2012-09-21 | 2012-09-21 | Turbine blade clamp based on piezoelectric ceramics and quick posture adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102873558B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170860B (en) * | 2013-03-28 | 2015-06-10 | 西北工业大学 | Hollow turbine blade wax mould cantilever-type clamp |
| CN104190904A (en) * | 2014-08-01 | 2014-12-10 | 南京赛达机械制造有限公司 | Fixture special for steam turbine die forging blades |
| CN105583672B (en) * | 2014-10-23 | 2018-01-23 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of localization method of conjuncted guide vane |
| CN104369020B (en) * | 2014-11-13 | 2017-06-06 | 四川成发航空科技股份有限公司 | A kind of fixture for high temperature alloy precision castings blade processing |
| CN106271734B (en) * | 2016-08-29 | 2019-06-18 | 中航动力股份有限公司 | A kind of wire cutting positioning fixture |
| CN106425734B (en) * | 2016-08-29 | 2018-08-03 | 中航动力股份有限公司 | Aero-engine finish forge stator blade intake and exhaust edge numerical control sbrasive belt grinding tooling |
| CN106392694B (en) * | 2016-08-30 | 2018-04-13 | 南通中能机械制造有限公司 | A kind of double leaf root blade four-axis milling machine fixture |
| US10227874B2 (en) | 2016-09-27 | 2019-03-12 | General Electric Company | Tooling fixture assembly for processing a component of a gas turbine engine |
| CN106624936A (en) * | 2016-12-16 | 2017-05-10 | 四川绵竹鑫坤机械制造有限责任公司 | Auxiliary clamping device for die forging blades |
| DE102018210894A1 (en) * | 2018-07-03 | 2020-01-09 | Siemens Aktiengesellschaft | Design and manufacture of a turbomachine blade |
| CN109571046B (en) * | 2019-01-23 | 2024-03-26 | 佛山顺德区三创智能装备有限责任公司 | Machine tool seat of full-automatic arrangement fixture |
| CN110315359B (en) * | 2019-06-21 | 2020-06-23 | 西安朋邦工贸有限公司 | Low-pressure turbine guide blade tool structure and adjusting method |
| CN110977070B (en) * | 2019-11-11 | 2020-12-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Fixing device and method for blade tenon in linear cutting |
| CN110936231B (en) * | 2019-12-17 | 2021-06-29 | 中国航发动力股份有限公司 | System for monitoring dynamic displacement of precision forging blade and monitoring method thereof |
| CN113458823B (en) * | 2021-07-13 | 2024-11-08 | 成都航利航空科技有限责任公司 | An adjustable blade adaptive angle precise positioning clamping device |
| CN114113170B (en) * | 2021-11-19 | 2023-08-11 | 华能国际电力股份有限公司 | A support device and support method for non-destructive testing of the internal structure of a turbine blade |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2446482A (en) * | 2006-11-28 | 2008-08-13 | John Mayfield | Apparatus for machining mower blades |
| CN101417396A (en) * | 2008-11-27 | 2009-04-29 | 西安交通大学 | Turbine hollow blade rabbet processing locating clamping method and device |
| CN102205498A (en) * | 2010-03-31 | 2011-10-05 | 天津市臣涛精密机械设备有限公司 | Clamp special for surface milling of multiple parts |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6652369B2 (en) * | 2001-12-13 | 2003-11-25 | General Electric Company | Fixture for clamping a gas turbine component and its use in shaping the gas turbine component |
| US6890248B2 (en) * | 2003-02-28 | 2005-05-10 | General Electric Company | Apparatus and method for consistently retaining a gas turbine engine blade in a predetermined position and orientation |
| US7328496B2 (en) * | 2003-10-31 | 2008-02-12 | General Electric Company | Apparatus for rebuilding gas turbine engine blades |
-
2012
- 2012-09-21 CN CN201210355478.7A patent/CN102873558B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2446482A (en) * | 2006-11-28 | 2008-08-13 | John Mayfield | Apparatus for machining mower blades |
| CN101417396A (en) * | 2008-11-27 | 2009-04-29 | 西安交通大学 | Turbine hollow blade rabbet processing locating clamping method and device |
| CN102205498A (en) * | 2010-03-31 | 2011-10-05 | 天津市臣涛精密机械设备有限公司 | Clamp special for surface milling of multiple parts |
Non-Patent Citations (2)
| Title |
|---|
| 叶片精密定位夹具设计;辛永刚等;《航空工艺技术》;19970630(第３期);第28-31页 * |
| 辛永刚等.叶片精密定位夹具设计.《航空工艺技术》.1997,(第３期),第28-31页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102873558A (en) | 2013-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102873558B (en) | Turbine blade clamp based on piezoelectric ceramics and quick posture adjusting method | |
| CN101417396B (en) | Hollow Turbine Blade Tenon Machining Positioning Clamping Method and Fixture | |
| CN109632285B (en) | A kind of high temperature fatigue test fixture for turbine blade | |
| CN103921146B (en) | A kind of fixture for the processing of finish forge blade tenon root | |
| CN202648570U (en) | Comprehensive measuring instrument for gas turbine stator blade | |
| CN203572356U (en) | Longitudinal tree type blade root and blade composite measuring tool | |
| CN109655333A (en) | A kind of flat test piece stretches-is bent composite fatigue test fixture | |
| CN205898042U (en) | Gas turbine engine turbine vane profile measuring device | |
| CN207423505U (en) | Dove-tail form fretting fatigue experimental system | |
| CN110378005A (en) | Admittedly the modeling method of lathe bed stream-heat-coupling finite element Thermal characteristic analysis model | |
| CN104501690B (en) | A kind of tool measuring blade chord length | |
| CN203449202U (en) | Measurement clamp for processing and detecting inner radial plane of guide vane of steam turbine | |
| CN207487562U (en) | A kind of blade profile molded line measures special measuring tool | |
| CN108168475B (en) | Method for measuring special-shaped angle of special-shaped air film hole of flame tube of conveyor | |
| CN115900986A (en) | Cylindrical front precursor ceramic film temperature sensor and its preparation device and preparation method | |
| CN202329491U (en) | Internal diameter comparator | |
| CN214095804U (en) | Super large combustion engine turbine blade position degree detects instrument | |
| CN221935958U (en) | A clamping device for machining heavy-duty large blades | |
| CN207629739U (en) | A kind of stator blade leaf shoulder detection device | |
| CN202648640U (en) | Detection module for turbine blade root | |
| CN109015013B (en) | Accurate clearance processing location frock of mounting panel | |
| CN208231318U (en) | The positioning fixture of bacterial type blade root processing | |
| CN206588855U (en) | A kind of groove type heat collector supporting spring assembly tool | |
| CN205209735U (en) | Multi freedom balance calibrating device | |
| CN206567816U (en) | A kind of Large Machine Body connects adjustment mechanism in high precision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180921 |