The article deals with theoretical analysis of the production of worm gears and also the calculation of the tool cutting edges for their production. Based on the design parameters of worm and worm wheel, it is possible to calculate the coordinates of the shape of the tool cutting edge. The exact calculation of the coordinates or parameters requires mathematical formulations and applying mathematical relationships we can transform the design of worm screw profile to the profile of tool. Worms of different types can be produced in various ways, e.g. with a lathe and the plane to set a tool is either axial or normal. In this article we consider their production on the lathe and tool setting in the normal plane. Axial profile of worm is a curve which is the intersection of worm surface and the plane passing through its axis, and normal profile is perpendicular in a selected point to worm profile. This normal profile in more accurately way characterizes the shape of the worm profile, therefore, the calculation of the shape of the tool cutting edge is designed with a tool set to the normal plane. Based on the analyses, the new computation equations were obtained, flowchart compiled and, according to a given regulation, the computer aided calculation of the coordinates can be implemented.
Production of screws with the optimal profile in terms of mesh properties is still in focus of worm gear manufacturers. The overall problem of tool edge designing is divided in few parts. This post only partly solves the problem of optimal tool shape design to produce the screws. In this paper is solved the problem of the abrasive wheel forming to produce screws with the logic operation of management system of tool grinder and calculation of profile curve on tooth heel.
PL
Produkcja ślimaków o optymalnym profilu pod względem właściwości siatki pozostaje wciąż w centrum uwagi producentów przekładni ślimakowych. Ogólny problem projektowania ostrzy narzędzi jest podzielony na kilka części. Artykuł ten tylko częściowo rozwiązuje problem optymalnego projektowania kształtu narzędzi do produkcji ślimaków przekładni ślimakowej. W pracy rozwiązano problemu formowania tarczy ściernej do produkcji ślimaka i obliczenie krzywej profilu na stopie zęba.
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