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Hydrostatic guide rail based on precision improvement and temperature maintaining system

A hydrostatic guideway, precision technology, applied in the direction of maintenance and safety accessories, large fixed members, metal processing machinery parts, etc., can solve the problems of dynamic error, reduce the processing accuracy of parts, vibration of tool parts, etc., to reduce manufacturing requirements, Strong throttling effect and open installation position

Pending Publication Date: 2021-05-28
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the process of ultra-precision machine tool processing, the direct or indirect effects of dynamic excitations such as oil source pressure fluctuations, inertial forces caused by unbalanced masses, air pressure fluctuations around the static pressure support oil film, eccentric electromagnetic forces of motors, cutting forces and environmental disturbances will Arouse the vibration of the hydrostatic guide rail, causing the tool parts to vibrate relative to each other, resulting in dynamic errors and reducing the machining accuracy of the parts

Method used

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  • Hydrostatic guide rail based on precision improvement and temperature maintaining system
  • Hydrostatic guide rail based on precision improvement and temperature maintaining system
  • Hydrostatic guide rail based on precision improvement and temperature maintaining system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as Figure 1-Figure 8 As shown, the hydrostatic guideway based on improved precision includes a support assembly, a drive assembly, a position measurement assembly, a cooling assembly and a protection assembly, and the support assembly includes a fixed part and a sliding part;

[0058] The fixed part includes a middle side guide rail bar 11, a main side guide rail bar 12, a main upper guide rail bar 13, a guide rail base 14, an auxiliary upper guide rail bar 112 and an auxiliary side guide rail bar 113, and the upper end surface of the guide rail base 14 is provided with a base set Oil tank 141, the first boss 142 of the base, the second boss 143 of the base and the fourth boss 145 of the base are arranged in the oil collecting tank 141 of the base, the main side guide rail bar 12, the auxiliary side guide rail bar 113 and the middle side guide rail The bars 11 are respectively fixed on the upper end surfaces of the first boss 142 of the base, the second boss 143 o...

Embodiment 2

[0084] This embodiment is based on Embodiment 1, the heights of the first boss 142 of the base and the second boss 143 of the base are the same, the heights of the main slider 15 and the auxiliary slider 111 are the same, and the main side rail bar 12 and the auxiliary side The heights of the guide rail bars 113 are the same; the first horizontal step oil hole 163 of the workbench, the second level step oil hole 164 of the workbench, the third level step oil hole 165 of the workbench, and the fourth level step oil flow hole of the workbench The same throttle is installed at the steps of the hole 166, the fifth horizontal step oil hole 168 of the workbench and the sixth level step oil hole 169 of the workbench, the first vertical step oil hole 1610 of the workbench, the workbench The second vertical step oil hole 1611, the third vertical step oil hole 1612 of the workbench, the fourth vertical step oil hole 1613 of the workbench, the fifth vertical step oil hole 1614 of the work...

Embodiment 3

[0086] The hydrostatic guide rail temperature maintenance system based on improved precision includes the hydrostatic guide rail 1 described in Embodiment 1 or Embodiment 2, and also includes a temperature sensor 2, a data collector 3, a controller 4, a cooling fan 5, a first Oil cooler 6, second oil cooler 7 and lubricating oil supply device 8;

[0087] There are multiple temperature sensors 2, which are respectively installed in the inner area of ​​the hydrostatic guide rail 1, the air outlet of the cooling fan 5, the oil outlet of the first oil cooler 6, the oil outlet of the second oil cooler 7 and The oil outlet of the lubricating oil supply device 8;

[0088] The input end of the data collector 3 is connected to the temperature sensor 2, and the output end is connected to the input end of the controller 4; the output end of the controller 4 is connected to the air cooler 5, the first oil cooler 6 and the second oil cooler 7 connected to the control input;

[0089] The ...

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Abstract

The invention discloses a hydrostatic guide rail based on precision improvement and a temperature maintaining system. The hydrostatic guide rail comprises a supporting assembly, a driving assembly, a position measuring assembly, a cooling assembly and a protection assembly; after hydrostatic lubricating oil is introduced into the hydrostatic guide rail, hydrostatic oil films are formed on the upper and lower surfaces of a main sliding block and an auxiliary sliding block; and the vertical up-and-down movement of a guide rail sliding part is limited, hydrostatic oil films are formed on the left side face and the right side face of the main sliding block, the lateral left-and-right movement of the guide rail sliding part is limited, two throttlers which are installed in a workbench in series and lead to oil cavity paths can adjust the pressure of the oil films in a self-adaptive mode in real time according to changes of external loads, and therefore, high-precision linear motion and high dynamic characteristics of the hydrostatic guide rail are realized. A controller maintains the internal environment temperature of the hydrostatic guide rail by controlling the fluid temperature and the supply flow in an air cooler, a first oil cooler, a second oil cooler and a lubricating oil supply device, and then the high heat stability of the hydrostatic guide rail is achieved.

Description

technical field [0001] The invention relates to the technical field of fluid static pressure support, in particular to a fluid static pressure guide rail and a temperature maintenance system based on improved precision. Background technique [0002] With the advancement of science and technology and the development of the national economy, the complexity, light weight, high speed and automation of mechanical systems have been continuously improved, and industrial technology and products are developing in a more advanced, sophisticated and cutting-edge direction. Products for high-end applications in the fields of aviation, aerospace, weapons, biology, medical treatment, and electronics have put forward high-performance manufacturing requirements of micro-nano scale or even higher precision for parts. Ultra-precision machining is one of the key technologies to achieve high-performance manufacturing. [0003] As the material basis of ultra-precision machining, the ultra-precis...

Claims

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Application Information

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IPC IPC(8): B23Q1/38B23Q11/12B23Q1/01
CPCB23Q1/38B23Q11/126B23Q1/017
Inventor 陈刚利刘有海尹承真阳红姜忠魏巍杜凯旋
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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