SU1738605A1

SU1738605A1 - Finish-machining method

Info

Publication number: SU1738605A1
Application number: SU904826734A
Authority: SU
Inventors: Альберт Викторович Королев; Иван Андреевич Яшкин; Олег Юрьевич Давиденко; Петр Яковлевич Коротков; Александр Альбертович Королев
Original assignee: Саратовский политехнический институт
Priority date: 1990-05-18
Filing date: 1990-05-18
Publication date: 1992-06-07

Abstract

Использование: при обработке высокоточных поверхностей деталей, например, типа колец подшипников качени . Сущность изобретени : в способе чистовой обработки обработку ведут инструментальной головкой 2 с расположенными в ней абразивными брусками 1, ось которой устанавливают из услови пересечени под острым углом в точке, лежащей в плоскости симметрии профил обрабатываемой поверхности. Дл обеспечени обработки внутренних поверхностей вращени , ограниченных одним или двум буртами, угол пересечени осей головки 2 и заготовки 3 периодически измен ют в пределах а - ± arctg D(1 - L)/(D2 + + L-l), а ширину брусков определ ют по формуле 0.5L + . где а-угол пересечени осей головки и заготовки; D - диаметр обрабатываемой поверхности; I - ширина брусков; L - длина обрабатываемой поверхности; Ье- рассто ние между плоскостью симметрии профил обрабатываемой поверхности и поверхностью ближайшего бурта . 2 ил.Use: when machining high-precision surfaces of parts, for example, the type of rolling bearing rings. SUMMARY OF THE INVENTION: In the finishing method, the tool head 2 is machined with abrasive bars 1 located therein, the axis of which is established from the intersection condition at an acute angle at a point lying in the plane of symmetry of the profile of the surface being processed. To ensure the processing of internal surfaces of rotation limited to one or two shoulders, the intersection angle of the axes of the head 2 and the workpiece 3 is periodically changed within a - ± arctg D (1 - L) / (D2 + + Ll), and the width of the bars formula 0.5L +. where a is the angle of intersection of the axis of the head and the workpiece; D is the diameter of the surface to be treated; I - the width of the bars; L is the length of the treated surface; Be is the distance between the plane of symmetry of the profile of the surface to be machined and the surface of the nearest shoulder. 2 Il.

Description

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Фиг. 2FIG. 2

Claims

The finishing method, in which the treatment is carried out with a tool head with abrasive bars located in it, the axis of which is established from the condition of intersection at an acute angle, at a point lying in the plane of symmetry of the profile of the surface to be treated, about τα and that with the aim that expanding the technological capabilities of the method by providing processing of internal surfaces of revolution limited by one or two shoulders, the angle a of the intersection of the axes of the head and the workpiece is periodically changed in the range a = ± arctg [D (l - L ) / (D ² + L1)}, and the width I of the bars is determined by the following formula:

L / V ² l = 0,5L + Le.

where D is the diameter of the treated surface;

at (1 ² -L ²⁾ / D ² <0.1 with an error of meeye 55 5%.

<dod = £.

L is the length of the surface to be treated,

1_b - the distance between the plane of symmetry of the profile of the workpiece and the surface of the nearest shoulder.