摘要：压电式传感器是一种典型的发电式传感器，其传感元件是力敏感元件，能测量最终能变为力的物理量，例如：力，力矩和加速度等。
     压电式传感器是根据石英晶片的晶体变形效应研制的一种钻削测力仪。这种新型压电式钻削测力仪轴向力测量2片晶组采用石英晶组对装；扭矩测量晶组则是由3片具有扭转效应的晶片组成，这种装置可以使电荷灵敏度增大1倍。35164
     压电晶体能够在钻削过程中同一时间测量出扭矩、径向力以及轴向力。而这三项指标也均能达到国际上所规定的标准。这类钻削测力仪的灵敏度和固有频率高、线性和重复性好，且测力仪结构较为简单，而在使用过程中，装配和调试都相对简单，成本也较低，在工程中，具有良好的应用情景。论文网
     对压电式传感器而言，最重要的便是灵敏度的高低，而灵敏度高低则取决于石英晶片的摆放与贴片数量。在这篇论文中，将设计三套压电式传感器石英晶片的贴片方式，并且对其灵敏度进行了计算分析。
     对于灵敏度的计算，主要是从所受到的轴向力与力矩来进行分析。力矩则是其中较为主要的检验灵敏度的数据，也是相对测量起来较为复杂的数据。而压电式传感器的灵敏度对所需检测的数据是非常重要的，因为检测的数据能够有效地帮助加工人员进行钻削过程中潜在会发生的危险的预防，避免出现重大生产事故。
     在机械加工中，压电式传感器多运用于钻削、铣削、车削等测力。因此，本片论文既是设计多套钻削测力系统中使用的压电式传感器的结构，进行多种结构方案分析，选取最为合适的钻削测力系统辅助装置的结构。
毕业论文关键词： 压电式传感器；钻削；测力；石英晶片；灵敏度
Design of auxiliary device for drilling force system
Abstract：Piezoelectric sensor is a kind of typical power sensor and its sensing element is force sensitive element, can measure can eventually become powerless physical quantity, for example: force, torque and acceleration.
The piezoelectric sensor is a drilling dynamometer based on the crystal distortion effect of quartz crystal.. Drill the the novel piezoelectric type cutting measuring instrument axial force measuring 2 lamellae group using quartz crystal group of; group of torque measuring crystal is consists of 3 pieces with torsion effect of chip component, the device can be increased by 1 times the charge sensitivity.
The experimental results show that the piezoelectric quartz chip can simultaneously measure the torque, radial force and axial force of the drilling process.. And these three indicators can also achieve the international standards. This kind of drilling dynamometer has the characteristics of high sensitivity, high inherent frequency, good linearity and good repeatability, and has the advantages of simple structure, easy assembly and debugging, low cost and wide application scenario..
The sensitivity is the most important for the piezoelectric sensor, while the sensitivity depends on the number of the quartz chip and the number of patches.. In this paper, three sets of piezoelectric quartz chip are designed, and the sensitivity of the chip is analyzed..
For the sensitivity, the axial force and torque are mainly analyzed.. Torque is the main test sensitivity of the data, but also relatively complex data measured. The pressure sensitivity of piezoelectric sensors required for data detection is very important, because the detection data can effectively help processing personnel to carry out the drilling process potential risk will occur in the prevention, to avoid major accidents in production.
In machining, the piezoelectric sensor is used for drilling, milling, turning, etc.. Therefore, this paper is the design of drilling cutting test used in the force system of piezoelectric sensor structure, a variety of structural analysis, select most suitable measuring the drilling force system auxiliary device structure. 钻削测力系统的辅助装置设计+CAD图纸:http://www.751com.cn/jixie/lunwen_32998.html