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Device for studying the effect of vibration on precision measurement of machine tool spindles

A machine tool spindle and precision measurement technology, which is applied to the vibration displacement measurement device of the machine tool spindle, and the field of devices that analyze the impact of vibration noise on the vibration displacement measurement of the machine tool spindle, and can solve the problems of vibration isolation, failure to take into account, structural installation, and inconvenient adjustment, etc. problems, to achieve the effect of improving coupling stiffness, easy clutch adjustment, and good rigidity

Inactive Publication Date: 2018-11-13
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0009] However, the existing experimental devices for measuring spindle rotation accuracy, such as "mixed multi-method test device for spindle rotation accuracy measurement experiment" (CN105033759A), although they can be used for various experimental purposes to collect radial displacement experiments when the spindle rotates, And the positioning accuracy of the sensor is guaranteed, but it does not take into account the impact of the vibration of the bed body on the test of the spindle rotation accuracy caused by the power source and transmission instability during the rotation of the spindle, so it is impossible to compare whether the vibration is on the test of the spindle rotation accuracy of the machine tool Impact
Although the existing vibration isolation platform, such as "passive vibration isolation platform" (CN204083050U), can also play the role of vibration isolation, but it cannot be directly used for the test of the rotation accuracy of the machine tool spindle: first, because of the inconvenience of its structure installation and adjustment, it cannot Adapt to precise testing; secondly, because the existing vibration isolation platform cannot isolate the vibration under the condition that the position of the test sensor remains unchanged

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  • Device for studying the effect of vibration on precision measurement of machine tool spindles
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  • Device for studying the effect of vibration on precision measurement of machine tool spindles

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Embodiment Construction

[0041] The application of the present invention to the drilling and milling machine will be described in detail below in conjunction with the accompanying drawings. It is mainly used to isolate the influence of the vibration of the machine tool itself on the sensor in the experiment that needs to collect the vibration of the machine tool spindle or the tool displacement data, so as to ensure that the collected data is true and effective. refer to Figure 14 , Figure 15 , Figure 16 .

[0042] Such as figure 1 , as shown in 2, a device for studying the influence of vibration on the precision measurement of the spindle of a machine tool, including a bed base plate 1, a vibration isolation layer 7, a test table 6, an upper clutch positioning mechanism 4, a lower clutch positioning mechanism 2, and a lateral clutch positioning mechanism Mechanism 3 and positioning boss 5 etc.

[0043] The bed base plate 1 is connected with the machine tool processing table through a T-shaped ...

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Abstract

The invention relates to a device for investigating impacts of vibration to precise measurement of a machine tool main shaft. A bed seat plate, an isolation vibration layer and test platform are overlaid in sequence. The bed seat plate and the test platform are connected by several upper clutching positioning mechanisms, lower clutching positioning mechanisms and horizontal clutching positioning mechanisms located on the bed base plate according to the six-point-positioning principle. The false and true clutching between the bed seat plate and the test platform is achieved through the clutching lugs and clutching knobs in the three clutching mechanisms. A clutching sensor detects whether resonance exists in the working table of the machine tool. According to the device for investigating impacts of vibration to the precise measurement of a machine tool main shaft, through the simple adjustment of whether the clutching knob is fastened, the actual displacement condition of the rotation of the machine tool main shaft in space can be tested, and relative displacement of the cutters to the working pieces can also be tested; through the replacement of different sensor clamps and the coordination of corresponding sensors, the device can satisfy the requirements of precise measurement of machine tool main shaft rotation with two-point method, three-point method and four-pint method, and the roundness errors, cylindricity errors and the like of the shaft can be measure and assessed.

Description

technical field [0001] The invention relates to a machine tool precision testing device, mainly a device for measuring the vibration displacement of a machine tool spindle, in particular to a device for analyzing the influence of vibration noise on the vibration displacement measurement of the machine tool spindle. Background technique [0002] During the machining of mechanical parts by machine tools, the vibration generated by the spindle has a great influence on the machining accuracy of the product, as well as the wear and life of the tool. The processing of high-precision mechanical parts has very high requirements on the rotation accuracy, roundness accuracy, and cylindricity accuracy of the machine tool spindle. Spindle rotation error, roundness error, cylindricity error, etc. are important indicators to measure the accuracy of machining centers and machine tools. Usually, they can be tested and evaluated by two-way method and three-point method. Through measurement,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 朱坚民沈昕璐周亚南李尧郑洲洋赵展田丰庆
Owner UNIV OF SHANGHAI FOR SCI & TECH
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