Barrel-type roller grinding device

Abstract

A grinding device for processing a drum-shaped roller belongs to the machining technology field. The invention is characterized in that a precision platform is taken as the bed; a hydrodynamic-hydrostatic grinding wheel system, a precision work-arbor system, a Y-axis precision rectilinear motion platform and a Z-axis precision turntable are arranged on the bed; in the turning and the rectilinear motions, the double-shaft numerical-control linkage is adopted, and the machining track can be controlled via changing the linear feed amount and the angular displacement. The grinding device has the advantages of solving the technical difficulties in machining the drum-shaped roller, ensuring the machining precision and the working efficiency of the drum-shaped roller, satisfying the developing requirement of increasing the oil-supply pressure in a novel engine, having definite significance for improving the design level and the manufacture level of a vehicle dynamical system.

Description

Technical field: [0001] The invention belongs to the technical field of machining. Background technique [0002] With the continuous improvement of the oil supply pressure of diesel engines, the quality and strength of the components of the oil supply system are required to be higher. In terms of structure, the shape of the roller is designed as a drum structure with high bearing capacity, which prevents the edge of the cylindrical roller from being crushed, improves the strength of the roller, and prolongs the service life of the engine. The radius of curvature of the bus bar on the side of the drum-shaped roller is required to be more than 1.4m, and the protrusion on the cylindrical surface with a width of 4mm is required to be 0.016-0.002mm, and the shape and position accuracy is required to be high, such as figure 1 As shown in the roller processing diagram, the processing difficulty of the roller is increased. [0003] Usually, two methods are used to process drum-sha...

AI Technical Summary

Problems solved by technology

[0003] Usually, two methods are used to process drum-shaped rollers: one: forming grinding, which is to trim the grinding wheel into a shape similar to the drum shape for grinding. However, due to the small amount of trimming and the difficulty in controlling the trimming accuracy, the dimensional accuracy of the processed rollers is difficult. Guarantee, at the same time, because the forming grinding area is large, the roughness and precision are difficult to meet the technical requirements of drum rollers; the second type: lapping and polishing processing, the processing efficiency is low, and the consistency of polishing is not guaranteed, which affects the performance of a group of rollers Big

If the above method is used for processing, if the structure of the drum roller is changed, the grinding wheel and polishing tools will also be changed, and it is difficult to adapt to the multi-variety and variable batch production requirements of the drum roller.

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