Adjustable electromagnetic chuck

Abstract

The invention provides an adjustable electromagnetic chuck. A coil of the adjustable electromagnetic chuck is sealed and waterproof, and in addition, a support block can be adjusted, so the universality of the chuck is good; in addition, under the condition with a certain number of turns, the magnetic force of the adjustable electromagnetic chuck is greater than the magnetic force of a single magnetic pole structure, the weight of the adjustable electromagnetic chuck is smaller than that of a multistage chuck, and the manufacturing cost of the adjustable electromagnetic chuck is smaller than that of the multistage chuck, and the economy is good. The adjustable electromagnetic chuck comprises a coil seat, the coil, a main shaft and the support block, wherein the non-support-block-installing side of the coil seat is fastened and connected with the main shaft, the support block installing side of the coil seat is provided with a coil installing groove going deep into the coil seat, and the coil is positioned in the coil installing groove. The adjustable electromagnetic chuck is characterized in that the coil installing groove is concretely an annular installing groove and is arranged around a center installing post of the coil seat, an annular sealing cover is arranged at the annular end surface of the coil installing groove in a covered way, the excircle surface of the support block installing side of the coil seat is sequentially provided with outer magnetism separating blocks and outer magnetism conducing blocks alternatively, and a whole formed by the outer magnetism separating blocks and the outer magnetism conducing blocks is in an annular structure.

Description

technical field [0001] The invention relates to the technical field of an electromagnetic chuck structure of a grinder, in particular to an adjustable electromagnetic chuck. Background technique [0002] At present, the grinding machines with electromagnetic chucks on the market are equipped with a single-pole electromagnetic chuck and a multi-pole electromagnetic chuck. Because of the small suction force of the unipolar electromagnetic chuck, each type of product needs to be equipped with an end support, which is suitable for small and medium-sized grinding machines. The multi-pole chuck has strong suction, but due to its relatively complex structure and the need for a professional brazing magnetic isolation sealing process, the multi-pole chuck is suitable for medium and large bearing grinders, but it is easy to be damaged by water and difficult to maintain. Therefore, there are not many manufacturers using it. Moreover, the supporting blocks of the existing electrom...

AI Technical Summary

Problems solved by technology

The multi-pole chuck has a large suction force, but due to its relatively complex structure and the need for a professional brazing magnetic isolation sealing process, the multi-pole chuck is suitable for medium and large bearing grinders, but it is easy to be damaged by water and difficult to maintain

Therefore, not many manufacturers use

And the support blocks of the existing electromagnetic chucks are all fixed-size structures, and the size of the support blocks of the chuck to absorb the grinding ring cannot be adjusted, so that its versatility is poor

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