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Machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and dynamometer

A machine tool spindle and mixed loading technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problem that the machine tool spindle reliability test device cannot truly simulate static cutting force and cutting torque loading, etc. Achieve the effect of improving life, simple structure of loading system and reducing overturning moment

Active Publication Date: 2014-11-26
JILIN UNIV
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the current machine tool spindle reliability test device cannot truly simulate dynamic and static cutting force and cutting torque loading. The present invention provides a machine tool spindle reliability test with mixed loading of electro-hydraulic servo and dynamometer The platform realizes mixed dynamic loading of dynamic and static cutting force and cutting torque on the spindle of the machine tool. The dynamometer provided by the invention includes various types of dynamometers such as electric dynamometers and eddy current dynamometers.

Method used

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  • Machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and dynamometer
  • Machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and dynamometer
  • Machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and dynamometer

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Embodiment Construction

[0039] The present invention is described in detail below in conjunction with accompanying drawing:

[0040] refer to figure 1 , figure 2 According to the present invention, the machine tool spindle reliability test bench loaded by electro-hydraulic servo and dynamometer includes a machine tool spindle support part, a torque loading part, and a cutting force loading part.

[0041] 1. Spindle support part of machine tool

[0042] The supporting part of the machine tool spindle includes a headstock backing plate 14 and a shim assembly 15 .

[0043] The headstock backing plate 14 is a plate structure, and there are T-shaped grooves parallel to each other on the upper plane. 15 is four sets of NC milling machine pads of the same specification, the model is S83-2, the machine tool spindle 13 is assembled on the headstock through the flange, and together with the three-jaw chuck is used as the test object of this test bench; Bolts and T-shaped nuts are fixed on the headstock ba...

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Abstract

The invention relates to a test device of a machine tool spindle, in particular to a machine tool spindle reliability test bed based on mixed loading of electro-hydraulic servo and a dynamometer, and aims to solve the problem that the conventional machine tool spindle reliability test device cannot truly simulate dynamic cutting force loading, static cutting force loading and cutting torque loading. The machine tool spindle reliability test bed mainly comprises a machine tool spindle supporting part, a torque loading part and a cutting force loading part, wherein the machine tool spindle supporting part is formed by combining a spindle box base plate (14) and an iron gasket (15); the torque loading part consists of a loading rod (12), an elastic diaphragm coupler (9) and the dynamometer (8), which are coaxially assembled; and the cutting force loading part employs two loading modes, namely a cutting resultant force loading mode and a cutting axial force and radial force separated loading mode. By performing reliability test for simulating true working conditions on the tested machine tool spindle, the failure of a product is stimulated and exposed, and practical basic data are provided for reliability growth and evaluation of the product.

Description

technical field [0001] The present invention relates to a test device for machine tool spindles, more precisely, the present invention relates to a machine tool spindle reliability test system that realizes mixed dynamic loading of dynamic and static cutting force and cutting torque on the machine tool spindle through electro-hydraulic servo and dynamometer Test Bench. Background technique [0002] CNC machine tools are an important cornerstone of industrial modernization, and their quality, performance and ownership have become an important symbol to measure a country's industrialization level and comprehensive national strength. Although CNC machine tools have been developed for nearly half a century, their reliability has always been a key issue that people pay attention to and make unremitting efforts to solve. Reliability is an important issue that restricts the rapid and efficient development of CNC machine tools, and improving reliability is the key to improving the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
Inventor 杨兆军许彬彬杨川贵何佳龙朱岩王凯方杰王东亮
Owner JILIN UNIV
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