Hydraulic type automatic lifting device for grinding wheel guard cover of parallel surface grinding machine

Abstract

The invention relates to a hydraulic type automatic lifting device for a grinding wheel guard cover of a parallel surface grinding machine. The hydraulic type automatic lifting device comprises a grinding wheel guard, an oil cylinder base, the grinding wheel guard cover, a hydraulic oil cylinder, small supports, a shaft, a rear oil cylinder base, bearings, small shafts, pads and end covers. The hydraulic type automatic lifting device is characterized in that the hydraulic oil cylinder enables a piston rod to be stretched out and drawn back so as to drive the oil cylinder base and the grinding wheel guard cover to rotate around the shaft, and the opening and closing angle of the grinding wheel guard cover is controlled according to the stroke of the hydraulic oil cylinder so that opening and closing operation of the grinding wheel guard cover can be accomplished. The hydraulic type automatic lifting device has the advantages of being reasonable in design and simple in structure, and capable of improving the automation level of machine tools.

Description

technical field [0001] The invention relates to the field of machine tool cover lifting, in particular to a hydraulic automatic lifting device for the grinding wheel cover of a double-end grinder. Background technique [0002] At present, the opening and closing of the grinding wheel cover of the double-end grinding machine has previously been performed by manually lifting the grinding wheel cover. Due to the high speed of the grinding wheel, the weight of the grinding wheel cover is generally large for safety purposes, and the machine tool needs to open and close the grinding wheel cover frequently when it is working and adjusting, and the frequent opening and closing of the grinding wheel cover manually increases the It reduces the labor intensity of workers and is not conducive to the improvement of the automation level of machine tools. When the geared motor is used to drive the automatic lifting of the grinding wheel cover, it is also necessary to consider the timely s...

AI Technical Summary

Problems solved by technology

Due to the high speed of the grinding wheel, the weight of the grinding wheel cover is generally large for safety purposes, and the machine tool needs to open and close the grinding wheel cover frequently when it is working and adjusting, and the frequent opening and closing of the grinding wheel cover manually increases the It reduces the labor intensity of workers and is not conducive to the improvement of the automation level of machine tools

When the geared motor is used to drive the automatic lifting of the grinding wheel cover, it is also necessary to consider the timely stop of the grinding wheel cover at the upper and lower limit positions to prevent the geared motor from continuing to rotate after the grinding wheel cover is opened and closed, causing damage to the geared motor. It is difficult to accurately grasp the upper and lower limit positions of the grinding wheel cover only by the proximity switch

When the hydraulic cylinder is used to pull the grinding wheel cover to rotate, it is easy to cause the distortion and deformation of the grinding wheel cover, and finally affect the sealing of the grinding wheel cover

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