The Scene Of The Vibration Of The High-speed Spindle Measurement System

CNC machining center is a new type of CNC machine tools, in order to further improve processing efficiency, reduce the auxiliary time, replace the action and function of the tool and CNC machine tools to form a class of integrated automation and higher productivity. High-speed machining center spindle is the most critical components of the CNC machining center; is one of the critical components of the tools to achieve high precision, high efficiency, high reliability of. Spindle components directly affects the performance of the quality of machining center, the vibration of the spindle affect parts machining accuracy directly. In the case that ensure the spindle quality was distributed uniform. The thesis uses the LabVIEW software designed a spindle dynamic imbalance signal test systems for electric spindle speed 15000r/min, vibration measuring range reaches 0 ~±1000μm, vibration amplitude resolution of 0.1μm, It can Analysis of the band to 5000HZof the data acquisition technology requirements. And the development of a new incentive program to test the reliability and stability of this system.The test system including: system excitation source, the data collection, data analysis and processing. Data collection and data analysis which is the key to this thesis, while they simultaneously work. The test system is a PC based virtual instrument test systems, including hardware and software of two parts, the test system software is to achieve the performance capabilities of the test procedures, test system hardware is a PCI-6220 data acquisition card and computer components.1. Measurement system through the analysis of technical indicators, selected to meet the requirements of the sensor, designed with high accuracy, high-resolution data acquisition system, to ensure that the system can acquire the spindle vibration signals accurately and rapidly. And complete the virtual design data collection procedures, and data collection for storage.2. Made on the spindle vibration signal processing and analysis methods, analys and process the vibration signal of spindle dynamic in the time domain and frequency domain respectively, drawing axis vibration frequency spectrum, the spindle vibration waveform, orbit diagram to show the dynamic performance of the spindle. By resetting the parameters of data acquisition system, from different angles to understand the dynamic balance of the spindle information, program design for synchronous operation. completed the data collection and data analysis,...