Water pump shaft grinding device and process

Abstract

The invention discloses a water pump shaft grinding device and process and belongs to the field of machinery. The water pump shaft grinding device comprises a base, an oil cylinder base, a head rack, a central bearing and a grinding wheel bracket, wherein the oil cylinder base, the head rack, the central bearing and the grinding wheel bracket are sequentially arranged on the upper surface of the base. A film chuck is mounted on a spindle of the head rack through a flange and provided with a plurality of claws, and the central bearing is perpendicularly mounted between the film chuck and the grinding wheel. By the water pump shaft grinding device and process, a water pump shaft is clamped or unclamped by means of elastic deformation generated by the film chuck, occupation space of the clamping position is few, a bearing surface of a lower bearing is an inclined surface, radial displacement is prevented during grinding, the water pump shaft can be supported by only one central bearing without using a pressing wheel, and accordingly, grinding of steps and grooves of the multi-step water pump shaft with small double-groove center distance is realized.

Description

technical field [0001] The invention relates to a water pump shaft grinding device and a process, belonging to the field of machinery. Background technique [0002] Electromagnetic centerless fixtures are usually used in the grinding of rolling bearing rings, which has become a standardized clamping method in the bearing grinding process. However, due to the particularity of the pump shaft structure, it is difficult to use electromagnetic centerless fixtures. The processing and clamping method of the shaft channel of the existing water pump is that the one-way bearing drives the water pump shaft, supports the shaft with double supports, positions the end face, and then presses the shaft with the pressure roller to carry out the grinding process. Because the one-way bearing requires a certain The clamping position, and the clamping of the double support and the pressure wheel also requires a certain space, which leads to certain limitations in the grinding of the pump shaft,...

AI Technical Summary

Problems solved by technology

However, due to the particularity of the pump shaft structure, it is difficult to use electromagnetic centerless fixtures

The processing and clamping method of the shaft channel of the existing water pump is that the one-way bearing drives the water pump shaft, supports the shaft with double supports, positions the end face, and then presses the shaft with the pressure roller to carry out the grinding process. Because the one-way bearing requires a certain The clamping position, and the clamping of the double support and the pressure wheel also requires a certain space, which leads to certain limitations in the grinding of the pump shaft, such as many steps, and the pump shaft with a small center distance between the double grooves is not easy to use the above method to process

At present, for the grinding of the steps of the water pump shaft, the plunge grinding is mostly used, but for the longer steps, the grinding accuracy is not easy to guarantee, and it is easy to produce defects such as vibration marks

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