Brush-type nozzle capable of automatically adjusting flow of grinding fluid

Abstract

The invention discloses a brush nozzle capable of automatically adjusting the flow rate of grinding fluid, which comprises a brush nozzle and an automatic flow adjustment system. The brush nozzle includes a universal bamboo tube and a hollow fiber bundle, and the universal bamboo tube wraps the hollow fiber bundle to form a brush nozzle. The end of the hollow fiber bundle is close to the working surface of the grinding wheel and can destroy the air barrier layer on the surface of the grinding wheel, so that The grinding fluid sprayed by the hollow fiber bundle can effectively enter the grinding area for lubrication and cooling; the automatic flow adjustment system includes a valve body, a valve core, a motor, a gear and a force sensor. When the grinding force changes, it is installed on the fixture The force sensor sends a feedback signal, and the motor adjusts the spool through the gear to turn over a suitable angle to control the number of fiber openings in the inner cavity of the valve, thereby controlling the flow of grinding fluid entering the grinding area and realizing automatic adjustment of the flow of grinding fluid. The invention has the advantages of increasing the utilization rate of the grinding fluid, reducing the grinding temperature, improving the grinding quality, protecting the environment, saving costs and the like.

Description

technical field [0001] The invention belongs to the field of grinding processing, in particular to a brush nozzle capable of automatically adjusting the flow rate of grinding fluid. Background technique [0002] Grinding has the advantages of high machining accuracy, good surface quality and wide application range. However, the grinding process will generate a lot of grinding heat during the process of removing material, and most of the grinding heat is concentrated in the grinding area, which is easy to form high temperature, which will cause various forms of thermal damage to the workpiece, such as: burns , metallographic transformation, surface softening (annealing) caused by secondary quenching, tensile stress on the grinding surface, grinding cracks and fatigue strength reduction, etc. In addition, thermal expansion during grinding will also cause deformation of the workpiece. Grinding productivity is often limited due to the negative impact of high grinding temperatur...

AI Technical Summary

Problems solved by technology

However, since this method must use pressurization and atomization equipment, it is expensive, and because the droplets entering the grinding zone are in the form of mist, the performance of washing away abrasive debris is poor

[0007] In summary, the current grinding cooling system needs to be further improved

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