Bidirectional double-helical cooling water jacket

Abstract

The invention discloses a bidirectional double-helical cooling water jacket which comprises a water jacket body, a water jacket shell and a water jacket end cover. The water jacket body comprises twohelical water channels; the two helical water channels are helically distributed on the water jacket body and form a double helical structure in the space; the water jacket shell and the water jacketbody are matched; and the water jacket end cover is used for fixing the water jacket shell and the water jacket body. Compared with the prior art, the invention provides an arrangement manner of the helical water channels, the water channels are helically distributed on the water jacket body, and cooling water flows in the helical water channels along the helical directions, so that the temperature change of the cooling water is little in the circumferential direction, and the problem that an electric spindle is heat-radiated nonuniformly in the circumferential direction is solved; and meanwhile, the two helical water channels are adopted for working independently, and the two helical water channels with the double helical structure in the space compensate for each other in the axial direction, so that a cooling effect on the cooling water jacket in the axial direction is uniform, and the problem that the electric spindle is heat-radiated nonuniformly in the axial direction is solved.

Description

technical field [0001] The invention relates to an electric spindle cooling water jacket, in particular to a bidirectional double-helix cooling water jacket for an electric spindle. Background technique [0002] As the core component of the high-speed machining machine tool, the electric spindle's performance directly affects the performance of the high-speed machining machine tool. Due to the high-speed operation of the electric spindle, a large amount of heat will be generated inside the electric spindle, which will cause large thermal deformation of the electric spindle and affect the machining accuracy of the machine tool. [0003] As the main heat dissipation device of the electric spindle, the cooling water jacket will take away most of the heat generated by the electric spindle, and the thermal deformation of the electric spindle during operation accounts for about 80% of the total deformation of the electric spindle, so the cooling performance of the cooling water ja...

AI Technical Summary

Problems solved by technology

Due to the single cooling water channel, when the cooling water flows through the water channel, the temperature of the cooling water will gradually increase, making the cooling effect gradually deteriorated. When the cooling water jacket is cooled, the cooling effect at the water inlet is the best, and the cooling effect at the water outlet is the best. The cooling effect is the worst, and the cooling effect is not uniform in the axial direction and the circumferential direction of the electric spindle

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