A parameter design method of tooth profile grinding temperature uniform macrostructure forming grinding wheel

Abstract

The invention discloses a parameter design method of a tooth profile grinding temperature uniform macrostructure forming grinding wheel, which is characterized in that a groove whose width varies according to a certain rule from the bottom to the top is designed on the working surface of the forming grinding wheel. The process of determining the change law of the groove width is as follows: establish an analytical model of the intermittent grinding temperature field of the grooved grinding wheel; establish a correlation model of grinding parameters, groove width and grinding temperature through multiple nonlinear regression analysis; combine the gear forming grinding Based on the geometric relationship of the grinding contact, the relationship model between the groove width of the grinding wheel and the grinding parameters, the geometric size of the gear and the contact position is established. According to the derived relationship model, the groove width at any position of the grinding wheel is calculated to determine the macroscopic structure of the grinding wheel working face. Compared with the existing continuous forming grinding wheel, the grinding wheel of the invention is beneficial to solve the problem that the gear forming grinding temperature is concentrated on the top of the teeth, prevent grinding burns and ensure the grinding quality.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a parameter design method of a tooth profile grinding temperature uniform macrostructure forming grinding wheel. Background technique [0002] Gears are widely used in various equipment fields, and their transmission performance and carrying capacity largely determine the performance and quality of mechanical equipment. Hardened gears can double the load capacity and service life of the transmission, and reduce the size and weight of the transmission. The hard tooth surface of the gear is usually obtained by heat treatment after machining. Grinding is the main method to eliminate the heat treatment deformation after the tooth surface is hardened, and further improve the gear precision and the roughness of the tooth surface. Compared with other processing methods such as turning and milling, during grinding, the thickness of the material removed by grinding is thinner, and the heat taken...

AI Technical Summary

Problems solved by technology

Too high and non-uniformly distributed grinding temperature field will cause tooth surface hardness changes, make the same tooth surface present multiple residual stress states and various microstructures, and produce grinding microcracks, which seriously affect the strength of the gear. Lifetime and Reliability

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