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Online flexible finishing method for spherical micro-grinding tool based on electromagnetic rheological effect

A spherical, electromagnetic technology, applied in the direction of machine tools, grinding machines, manufacturing tools, etc. suitable for grinding the edge of the workpiece, it can solve the problems of fast wear of abrasive tools, improve the quality of the processed surface, increase the contact area, improve the processing efficiency and processing The effect of precision

Active Publication Date: 2021-06-22
HUNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention aims to solve the problems such as rapid abrasive wear due to the small contact surface between the ball-end micro-abrasive and the micro-curved parts

Method used

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  • Online flexible finishing method for spherical micro-grinding tool based on electromagnetic rheological effect
  • Online flexible finishing method for spherical micro-grinding tool based on electromagnetic rheological effect
  • Online flexible finishing method for spherical micro-grinding tool based on electromagnetic rheological effect

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Embodiment Construction

[0035] The following is attached Figure 1-5 Specific embodiments of the present invention are described in detail.

[0036] Such as Figure 1-3 As shown, this embodiment provides a nanofluid electromagnetic rheological grinding fluid and a spherical micro-grinding online flexible dressing device, including a grinding fluid reservoir 1, a water pump 2, a flow control valve 3, a spindle coil 6, and a nozzle 7 , a horizontal magnetic field auxiliary device 9, a frequency conversion control unit 10, a power supply 12, an oscilloscope 13, and an electrode 16, wherein: the grinding fluid reservoir 1 is connected with the water pump 2, the flow control valve 3, and the nozzle 7 sequentially through pipelines, and the liquid flow and The flow rate can be controlled and adjusted by the flow control valve 3 , and the electromagnetic rheological grinding fluid 22 is output to the area between the spherical micro grinding tool 8 and the micro curved surface part 14 through the nozzle 7 ...

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Abstract

The invention provides an online flexible finishing method for a spherical micro-grinding tool based on an electromagnetic rheological effect. According to the method, gradient pressure gaps are formed in the surface of the spherical micro-grinding tool to be finished and the surface of a curved surface part by utilizing the difference between the surface curvature of the spherical micro-grinding tool and the surface curvature of the micro curved surface part, the distribution and the motion state of electromagnetic rheological nano-particles in electromagnetic rheological grinding liquid are controlled, and under the synergistic effect of the surface pressure of the micro curved surface part, online finishing of the spherical micro-grinding tool is realized, and meanwhile, surface pretreatment of the micro curved surface part is realized. According to the method, the spherical micro-grinding tool is subjected to online finishing / sharpening, so that the problems that the loss of the micro-grinding tool is serious and the quality of the machined surface is poor due to the fact that the contact area between the spherical micro-grinding tool and the micro curved surface part is small before the micro curved surface part is machined can be solved, and the repeated installation error caused by the fact that the micro-grinding tool needs to be finished offline due to passivation can be avoided; and in addition, only a small amount of grinding liquid needs to be used for finishing each time, so that energy conservation and environmental protection are achieved.

Description

technical field [0001] The invention belongs to the technical field of micro-abrasive trimming in grinding processing, and in particular relates to an online flexible trimming method for spherical micro-abrasives based on electromagnetic rheological effects. Background technique [0002] Micro-grinding technology has the advantages of good precision, low cost, and strong flexibility, and can realize the processing of small and complex shape / structural parts. However, the size of the micro-abrasives used in micro-grinding is small (<1mm), and it is very difficult to manufacture, especially in the manufacturing process of micro-abrasives, it is difficult to ensure the uniformity of the abrasive grains and the height of the edge, and the micro-tools Difficult to precisely reshape after wear. In addition, there is a difference in surface curvature between the spherical micro-abrasive tool used for processing micro-curved parts and the surface of the micro-curved part, so tha...

Claims

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Application Information

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IPC IPC(8): B24B1/00B24B31/112B24B51/00B24B49/00B24B57/02
CPCB24B1/005B24B31/112B24B51/00B24B49/006B24B57/02
Inventor 姜潮陈启迪李伟黄向明
Owner HUNAN UNIV
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