An adjustment method for a mechanical on-line dynamic balancing system built into the main shaft
An adjustment method, a mechanical technology, applied in static/dynamic balance testing, general control system, control/adjustment system, etc., can solve the problems of spindle dynamic imbalance, affecting the spindle rotation accuracy, instability, etc., to improve the rotation Accuracy, practical adjustment method, comprehensive effect
Active Publication Date: 2018-02-02
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology
Furthermore, due to the narrow space of the technological hole of the general spindle and the complex structure of the mechanical dynamic balancing device, the uncertainty and instability of any parameter during the adjustment process of the dynamic balancing device will destroy the original characteristics of the spindle, and even the additional spindle will be replaced by a new dynamic balance device. Balance or affect the rotation accuracy of the spindle
Therefore, it is challenging to adopt a proper method to realize the proper operation of the mechanical online dynamic balance system built into the spindle
Method used
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[0056] Example: such as figure 1 As shown, the adjustment method of the present invention comprises the following steps:
[0057] Step 1: Install an online dynamic balancing system, such as Figure 8-Figure 11 shown;
[0058] Step 1.1: Place the dynamic balancing device in the inner hole of the main shaft 19, fix the expansion ring 1 firmly and fix the dynamic balancing device in the inner cavity of the main shaft 19, and ensure that the dynamic balancing device is concentric with the rotation center of the main shaft 19;
[0059] Step 1.2: Fix the two acceleration sensors I18 and II22 on the main shaft sleeve 20 respectively, the plane formed by the center line of the two acceleration sensors and the axis of the main shaft 19 is perpendicular to the horizontal plane, and measure the distance between the acceleration sensor and the main shaft sleeve 20 - a fixed point The distance is l 2 , l 6 ;
[0060] Step 1.3: install the phase sensor 25 horizontally, set it at the ce...
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The invention relates to an adjustment method of a mechanical online dynamic balancing system built into a main shaft, which belongs to the technical field of high-speed main shaft online dynamic balancing. Step 1: Install the online dynamic balance system; Step 2: Calibrate the online dynamic balance correction: Calibrate the axial position parameters lA and lB of the two adjustment balance surfaces; Step 3: Measure the dynamic unbalance and calculate the equivalent centrifugal force of the dynamic unbalance FD and its position lD; Step 4: Correct the dynamic unbalance of the main shaft: Calculate the angle β1 or β2 that the mass block needs to adjust according to the parameters obtained above, control the motor to rotate, and adjust the corresponding mass block; Step 5: The main shaft does not move The balance data and mass block adjustment data are displayed on the monitor of the industrial computer in real time, realizing real-time monitoring of the whole process. The invention is suitable for various operating conditions of the main shaft, and realizes online correction of the dynamic unbalanced state of the main shaft. It can improve the rotation accuracy of the high-speed spindle, so as to realize the processing of high-quality parts.
Description
technical field [0001] The invention belongs to the technical field of online dynamic balancing of high-speed spindles, and in particular relates to an adjustment method of a mechanical online dynamic balancing system built into a spindle. Background technique [0002] High-speed CNC machine tools are one of the technical foundations and development directions of the equipment manufacturing industry. The technical level of high-speed CNC machine tools is a sign to measure the level of a country's manufacturing industry. The main shaft is one of the most critical components in all rotating CNC machine tools, and its performance has a crucial impact on the machining accuracy and reliability of the entire machine tool. Rotational imbalance is one of the main factors affecting the rotation accuracy of the spindle. The realization of dynamic balance on the spindle has become an indispensable key technology. It is the ultimate goal of striving to improve the rotation accuracy, rel...
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IPC IPC(8): G01M1/38G05B19/401
Inventor 吴玉厚张珂邓华波张丽秀石怀涛范丽婷王展李桐张驰宇
Owner SHENYANG JIANZHU UNIVERSITY