Multi-waveform electromagnetic field assisted permanent magnet grinding machining device and using method thereof

Abstract

The invention belongs to the technical field of magnetic grinding surface finishing, and particularly relates to a multi-waveform electromagnetic field assisted permanent magnet grinding machining device and a using method thereof. The multi-waveform electromagnetic field assisted permanent magnet grinding machining device comprises a bottom plate, two Y-axis lead screws, two Y-axis motors, two portal frames arranged on the two Y-axis lead screws, X-axis lead screws and X-axis motors arranged on the portal frames respectively, Z-axis lifting devices arranged on the portal frames respectively,rotary motors arranged on the Z-axis lifting devices, permanent magnetic poles connected with output shafts of the rotary motors, electromagnet groups arranged on the bottom plate, and a cover plate arranged above the electromagnet groups. According to the multi-waveform electromagnetic field assisted permanent magnet grinding machining device and the using method thereof, magnetic grinding machining of a plane and a curved surface can be achieved. Meanwhile, through arrangement of an upper magnetic pole and a lower magnetic pole and large-area magnetic field distribution, the magnetic flux leakage problem of a machining area is effectively reduced, and the grinding quality of the large-area plane or curved surface is guaranteed. Different interactions between a dynamic magnetic field anda magnetic abrasive can be achieved by controlling the current waveform, and self-renewal of the abrasive is facilitated.

Description

technical field [0001] The invention belongs to the technical field of magnetic grinding surface finishing, and in particular relates to a multi-waveform electromagnetic field assisted permanent magnet grinding processing device and a use method. Background technique [0002] In traditional mechanical processing, after the workpiece is processed into a finished product through a series of processing methods, the surface will be damaged to varying degrees, and the surface quality is poor. During the use of the workpiece, the actual quality and effect will be greatly affected, especially Aerospace, military and other fields have stricter requirements on the surface of the workpiece, so it is particularly important to smooth the surface of the workpiece to improve the service reliability of the workpiece. Magnetic grinding technology can be used to smooth the surface of flat or curved workpieces. However, the current magnetic grinding equipment for flat or curved surfaces has ...

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Problems solved by technology

However, the current magnetic grinding equipment for flat or curved surfaces has problems such as insufficient magnetic field strength, serious magnetic flux leakage in the processing area, and insufficient self-renewal of the abrasive during grinding, which directly leads to insufficient bonding force of the magnetic abrasive in the processing area, abrasive splashing, and dispersion of magnetic force lines. The normal force on the abrasive is low, and it cannot effectively cut into the workpiece; at the same time, because the traditional magnetic grinding device is mostly a static magnetic field, it is not conducive to the renewal of the abrasive, and the processing efficiency and quality will decrease as the processing time increases.

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