齒輪激光精密測量裝置與軟件系統(tǒng)的研發(fā)
[Abstract]:With the rapid development of the contemporary manufacturing industry, the precision requirements of mechanical products are becoming higher and higher. As an important part of mechanical transmission components, the accuracy of gear directly determines the stability of mechanical transmission, so the requirements of its production and manufacture are becoming more and more strict. The measurement of gear manufacturing accuracy has become an indispensable part of the enterprise production process, but the widely used measuring instruments and methods have some shortcomings, such as complex operation, long detection time and so on. At the same time, when facing the complicated profile gear such as bevel gear or arc tooth cylindrical gear, it is even difficult to measure, which restricts the improvement of manufacturing precision of domestic gear. In this paper, a non-contact gear measuring device based on laser displacement sensor is put forward for the first time, and the corresponding numerical control measuring and analyzing software is developed, which can carry on the tooth pitch deviation and tooth profile deviation to all kinds of gears commonly used at present. Rapid automatic detection of radial runout deviation and other measurement items. This paper introduces the development of gear detection technology and instrument in recent years, and analyzes the contact gear measuring principle which is widely used at present: sampling the coordinate points of gear tooth surface by using trigger or scanning probe. Then fitting the sampled coordinate points in the workpiece coordinate system to calculate the tooth surface error. The method of contact measurement has some requirements on the measuring surface, and it also needs to set the measuring path in advance, and the measurement steps and error analysis methods are complex. In addition, the conventional contact measurement is difficult to detect the bevel gear and the arc cylindrical gear with complex tooth surface, but it is more complicated and difficult to develop contact measuring center for this kind of gear. At present, there is no very mature product in our country. The measuring device is mainly composed of worktable, mechanical motion mechanism, servo control system, laser displacement sensor and upper mechanism. In the part of mechanical structure, the high precision linear module and grating ruler are used to improve the accuracy of motion positioning, and the motion control card based on PCI bus is used to control the servo system with high precision and high efficiency. In addition, the non-contact measurement method and the corresponding error analysis method are proposed for the first time in view of the shortcomings of the current contact measurement method. By using the laser displacement sensor to measure the profile of the tooth surface with high precision, the displacement data are transformed into coordinate points in the right angle coordinate system by the spatial position relation of the gear, and the error data of the tooth surface are obtained by using the coordinate method. Non-contact measurement method has the advantages of high efficiency, high accuracy, simple operation and wide adaptability. This paper uses SolidWorks secondary development technology VB development technology and database technology to integrate the three functions of model simulation, motion control and error analysis, and successfully completes the development of the software system of the measuring device. In this paper, the self-developed device and measurement system are used to carry out the measurement experiment. The effective deviation of tooth pitch, tooth profile and radial runout is obtained by analyzing the data, which verifies the feasibility and correctness of the measurement method proposed in this paper. It can meet the basic needs of gear detection and lay a foundation for the research and development of non-contact gear measurement methods.
【學(xué)位授予單位】:揚州大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TG86
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