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High-speed high-precision built-in dynamic and static piezoelectric main shaft

A dynamic and static piezoelectric, high-precision technology, applied in the direction of large fixed members, metal processing machinery parts, maintenance and safety accessories, etc., can solve the problems affecting the machining accuracy and efficiency of CNC machine tools, and achieve simple structure, high rotation accuracy, The effect of averaging error

Active Publication Date: 2017-07-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the vibration caused by the imbalance of the spindle system due to the stress deformation, thermal deformation and uneven wear of the grinding wheel of the spindle system also seriously affects the machining accuracy and efficiency of CNC machine tools.

Method used

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  • High-speed high-precision built-in dynamic and static piezoelectric main shaft
  • High-speed high-precision built-in dynamic and static piezoelectric main shaft

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Experimental program
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Embodiment Construction

[0021] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0022] combine figure 1 and figure 2 , a high-speed and high-precision built-in dynamic and static piezoelectric spindle provided by the present invention is composed of a grinding wheel 1, a flange 2, a front bearing cover 3, an adjusting gasket 4, a front bearing 5, a temperature sensor 6, and an oil inlet 7 , flow regulating valve 8, rear bearing 9, rear bearing end cover...

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Abstract

The invention relates to a high-speed high-precision built-in dynamic and static piezoelectric main shaft. The high-speed high-precision built-in dynamic and static piezoelectric main shaft is characterized in that the main shaft comprises a box body, a front bearing and a rear bearing are arranged in the box body through a front bearing end cover and a rear bearing end cover correspondingly, and the front bearing and the rear bearing jointly bear a main shaft body internally provided with an online dynamic balancing head; the box body is provided with an oil inlet and an oil outlet, the oil inlet communicates with the oil outlet through an oil way, the oil way is divided into two parts, and one part enters the front bearing and the rear bearing through the oil inlet to suspend the main shaft body in a gap between the front bearing and the rear bearing to form pure liquid lubrication; and the other part is fed to the front bearing and the front bearing end cover to make the main shaft body achieve axial positioning, and a grinding wheel is arranged on the front bearing end cover through a flange disc. The high-speed high precision built-in dynamic and static piezoelectric main shaft is simple in structure, good in dynamic performance, large in rotation number of the main shaft, high in rotation precision and small in heat deformation and can be widely applied to grinding wheel electric main shafts of precise grinding machines, main shafts of numerical control machining centers and precise lathes and the like.

Description

technical field [0001] The invention relates to the technical field of precision numerical control machine tools, in particular to a high-speed and high-precision built-in dynamic and static piezoelectric spindle. Background technique [0002] With the proposal of Made in China 2025, higher requirements are put forward for the manufacturing industry, and CNC machine tools are required to develop in the direction of precision, high speed and intelligence. As the core component of CNC machine tools, the spindle's dynamic performance directly determines the processing of the machine tool. precision. At present, more and more high-end CNC machine tool spindles begin to adopt the electric spindle structure. The electric spindle integrates the machine tool spindle and the built-in motor rotor through interference fit, no longer uses belt or gear transmission, and saves the intermediate mechanical transmission. Link, and the main shaft components are relatively independent from th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B19/02B23Q11/12
CPCB23Q1/703B23Q11/127
Inventor 何勇汤世炎彭达刘传群卢斌马晓建费胜巍
Owner DONGHUA UNIV
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