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A reliability test device for hydraulic system of CNC grinding machine

A hydraulic system and CNC grinding machine technology, applied in fluid pressure actuation system testing, fluid pressure actuation devices, servo meter circuits, etc., can solve the problem of not being able to correctly control the reliability of the hydraulic system and affecting the reliability of the CNC grinding machine, etc. problem, to achieve the effect of good application prospects

Active Publication Date: 2017-11-24
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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  • A reliability test device for hydraulic system of CNC grinding machine
  • A reliability test device for hydraulic system of CNC grinding machine
  • A reliability test device for hydraulic system of CNC grinding machine

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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 b3 on the headstock spindle 4 through the gear a2 to drive the headstock spindle 4 to rotate, and the workpiece 7 rotates under the drive of the top a6 and the top b19; the spindle frequency conversion motor 13 passes through the synchronous belt 12. The timing belt 14 and the timing belt 16 drive the grinding wheel spindle 9 to rotate, thereby driving the grinding wheel 8 to realize the grinding of the workpiece 7; the radial hydraulic pressure is composed of a diamond probe 28, a hydraulic arm 27, a hydraulic cylinder d26 and a slide block 31. The hydraulic servo motor 22 drives the lead screw 25 through the shaft coupling 22 to drive the slider 31 to move. The slider 31 realizes the movement along the z-axis direction under the guidance of the guide rod 32. The hydraulic ...

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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 Patents(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