High speed electric main shaft dynamic loading vibration measuring device
A high-speed motorized spindle, dynamic loading technology, applied in measurement devices, vibration testing, testing of machine/structural components, etc., can solve problems such as inaccurate data, inaccurate applied force, and inability to simulate cantilever states. Accurate, simple-structured effects
Inactive Publication Date: 2019-04-30
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
Most of the existing electric spindle loading test benches are empty-loaded, and a few can apply radial force, axial force and tangential force, but they cannot simulate the cantilever state with the tool when the electric spindle is working, and the applied force is not accurate enough, resulting in The experimental data is not accurate enough
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[0017] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0018] Such as figure 1 As shown, a high-speed electric spindle dynamic loading vibration measurement device is characterized in that: a mobile platform (2) is installed on the left side of the test bench (1), and a spindle fixture (3) is installed on the mobile platform (2). The tested spindle (4) is installed on the spindle fixture (3), and two vibration acceleration sensors (14) are installed at the front end bearing position of the tested spindle (4), and the tested spindle (4) passes through the broach device It is connected with the connection shaft B (13), the connection shaft B (13) is connected with the coupling (6), the coupling (6) is connected with the connection shaft A (8), and the connection shaft The speed disc (7) is installed on A (8), the right side of the connecting shaft A (8) is connected with the magnetic powder brake in th...
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The invention relates to a high speed electric main shaft dynamic loading vibration measuring device and belongs to the electric main shaft performance measurement field. An experiment stand is connected with a mobile platform, the mobile platform is equipped with a main shaft clamp, the main shaft clamp is equipped with a detected main shaft, the detected main shaft is connected with a coupling through a connection shaft B, the bearing position of the detected main shaft is equipped with two vibration acceleration sensors, a temperature detection mechanism and a speed detection mechanism, thetwo vibration acceleration sensors, the temperature detection mechanism and the speed detection mechanism are electrically connected with a PC control mechanism, the coupling is connected with a connection shaft A, a right end of the connection shaft A is connected with a magnetic powder brake in a tangential force mechanism, the magnetic powder brake is mounted above a radial force mechanism, aright side of the magnetic powder brake is equipped with an axial force mechanism, external force borne during operation is simulated, a problem that simulating the actual force of the experiment stand in the prior art is difficult is solved, radial force and axial force top plates are equipped with pressure sensors, and detected signals are transmitted back to the PC control mechanism to form closed loop control. The device is advantaged in that the device is used for measuring electric main shaft vibration performance.
Description
technical field [0001] The invention relates to a dynamic loading vibration measuring device of a high-speed electric spindle, which belongs to the field of performance measurement of a high-speed electric spindle. Background technique [0002] High-speed electric spindles are widely used in the field of mechanical processing, and are used in the processing of various parts, which improves the existing processing accuracy and processing efficiency. However, in order to ensure the accuracy and stability of the high-speed electric spindle, it is necessary to simulate the working conditions of the high-speed electric spindle and measure its vibration performance, which will be used to improve and optimize the structure and parameters of the high-speed electric spindle. [0003] Vibration testing is generally to embed sensors on the electric spindle bearing housing, such as vibration sensors, displacement sensors, etc., to test the vibration characteristics of the electric spind...
Claims
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IPC IPC(8): G01M7/02
CPCG01M7/02G01M7/025
Inventor 张元王丽锋张津
Owner HARBIN UNIV OF SCI & TECH