A test method for double-drive electric spindle

Abstract

The invention provides a dual-drive spindle test stand and test method avoiding previous measurement defects, and aims at measuring temperature and vibration of a dual-drive spindle. The scheme is that the dual-drive spindle test stand comprises a computer, a frequency converter, a main body base, a spindle unit which is connected with the frequency converter, a positioning clamp, a driving motor which is connected with the frequency converter, a synchronous belt, synchronous belt wheels, a lubricating system, a cooling system and a test head component. The spindle unit is fixed on the upper end of the main body base via the positioning clamp. The driving motor is fixed on the main body base arranged at one side of the spindle unit. The driving motor and the spindle unit are connected via the synchronous belt wheels and the synchronous belt. The cooling system is connected with the water inlet and the water outlet of the spindle unit. The lubricating system is connected with the oil inlet of the spindle unit. The test head comprises a vibration measurement block which is arranged on the front large cover of the spindle unit, a vibration sensor of which the data acquisition end is connected with the vibration measurement block, and a temperature sensor which is installed in a temperature measurement hole.

Description

technical field [0001] The invention relates to the technical field of spindle unit tests, and mainly relates to a double-drive spindle test bench and a test method. Background technique [0002] Spindle units usually have motorized spindles and belt shafts, both of which have their own advantages and disadvantages. The electric spindle has a high speed and small torque; the belt shaft has a small speed and a large torque compared with the electric spindle; this will inevitably lead to different application occasions of the two. With the development of the spindle unit, in order to meet the requirements of the industry, the dual-drive spindle came into being. However, whether the comprehensive performance of this type of spindle unit meets the national and industry standards remains to be further studied. Among them, the main factors affecting the practical performance of the electric spindle are temperature, vibration and speed. [0003] Spindle units are generally used ...

AI Technical Summary

Problems solved by technology

During this measurement process, the vibration of the spindle unit will inevitably affect the adsorption state of the magnet, which will affect the measurement results of the vibration state of the spindle unit and reduce the accuracy of the results

[0007] The impact of the speed on the spindle unit is also prominent. When the speed gradually increases, the heat generated will inevitably increase, and the centrifugal force on the bearing will increase, and the inertial slip will also increase, which will affect the dynamic balance of the spindle unit.

[0008] However, the test bench and experimental method for the dual-drive electric spindle are still blank in China, and the relevant literature has not been reported.

Images