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Testing device for reliability of numerical control grinder hydraulic system

A technology of hydraulic system and CNC grinding machine, which is applied in the testing of fluid pressure actuating system, fluid pressure actuating device, servo meter circuit, etc. problem, to achieve the effect of good application prospects

Active Publication Date: 2015-10-21
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the reliability test of the hydraulic system is mainly carried out under no-load conditions, which leads to the inability of purchasers and designers to correctly control the reliability of the hydraulic system, thus affecting the reliability of the CNC grinding machine.

Method used

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  • Testing device for reliability of numerical control grinder hydraulic system
  • Testing device for reliability of numerical control grinder hydraulic system
  • Testing device for reliability of numerical control grinder hydraulic system

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Experimental program
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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the headstock variable frequency motor (1) meshes with the gear b (3) on the headstock spindle (4) through the gear a (2) to drive the headstock spindle (4) to rotate, and the workpiece (7) is on the top a ( 6) and the top b (19) to rotate; the spindle frequency conversion motor (13) drives the grinding wheel spindle (9) to rotate through the timing belt (12), timing belt (14) and timing belt (16), thereby driving the grinding wheel (8 ) to realize the grinding of the workpiece (7); the radial hydraulic pressure is composed of a diamond gauge (28), a hydraulic arm (27), a hydraulic cylinder d (26) and a slider (31), and is passed by a hydraulic servo motor (22) The shaft coupling (22) drives the lead screw (25) to drive the slider (31) to move, and the slider (31) realizes the movement along the z-axis direction under the guidance of ...

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Abstract

The invention provides a testing device for the reliability of a numerical control grinder hydraulic system. A mechanical control system is mainly used for controlling rotation of a headstock spindle, rotation of a grinding wheel spindle and feeding of radial hydraulic pressure. A spindle hydraulic system is mainly used for controlling suspension of the grinding wheel spindle. A hydraulic and tailstock hydraulic system is mainly used for controlling feeding of the radial hydraulic pressure, overturn of axial hydraulic pressure and feeding of a tailstock. An electrical control system is mainly used for controlling all elements to cooperatively work. The testing device simulates different working conditions of a numerical control grinder, a programmable logic controller controls a touch screen to store measurement data and failure data in the operation process of the hydraulic system, and the reliability level of a measuring instrument of the numerical control grinder is calculated and estimated according to the data.

Description

technical field [0001] The invention relates to a test device for evaluating the reliability of a hydraulic system of a numerically controlled grinding machine, which belongs to the fields of precision manufacturing technology and industrial automation control. Background technique [0002] High-end CNC machine tools are high-tech "working machines" and "machines for manufacturing machines". They are one of the basic manufacturing equipment for realizing national industrialization and modernization. An important symbol of comprehensive national strength. At present, my country has mastered some key technologies of CNC machine tools and formed its own CNC machine tool industry, but there is still a huge gap with foreign countries in terms of medium and high-end CNC machine tools. CNC grinding machine is a machine tool that uses abrasive tools to process workpieces, and is widely used in mechanical processing and manufacturing. CNC grinding machine is usually the last proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
CPCF15B19/005F15B2211/87
Inventor 范晋伟伊晓龙陈东菊唐宇航苗伟张兰清纪实
Owner BEIJING UNIV OF TECH