SU804137A1

SU804137A1 - Article rolling tool

Info

Publication number: SU804137A1
Application number: SU792704215A
Authority: SU
Inventors: Юрий Михайлович Водопьянов; Сергей Иванович Кольцов
Original assignee: Алтайский Научно-Исследовательскийинститут Технологии Машиностроения
Priority date: 1979-01-03
Filing date: 1979-01-03
Publication date: 1981-02-15

Description

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Изобретение относитс к обработке металлов давлением и может быть использовано при поперечной и винтовой прокатке сплошных и полых профилей.The invention relates to the processing of metals by pressure and can be used in the cross and helical rolling of solid and hollow sections.

Известен инструмент дл поперечной прокатки изделий, содержащий валки с выгнутыми деформируюш,ими поверхност ми, выполненные в виде сегментов, оси врашени которых смещены по обе стороны от оси прокатки на равные от нее рассто ни 1.A tool for transverse rolling of products is known, which contains rolls with deformed curved surfaces, made in the form of segments, the axis of which is shifted on either side of the rolling axis by equal distances from it 1.

Несмотр на широкие технологические возможности, применение известного инструмента ограничено из-за трудностей его конструктивного выполнени . Кроме того, хот инструмент и прост в конструктивном и технологическом отношении, он имеет ограниченные технологические возможности вследствие того, что непригоден дл накатывани шлицевых и зубчатых профилей, а также резьб и ступенчатых изделий с утолщени ми на концах.Despite the wide technological possibilities, the use of the known tool is limited due to the difficulties of its constructive implementation. In addition, although the tool is both structurally and technologically simple, it has limited technological capabilities due to the fact that it is unsuitable for rolling spline and gear profiles, as well as threads and stepped products with thickened ends.

Кроме того, известный инструмент не позвол ет реализовать принцип дробности деформации дл снижени нагрузок на валIn addition, the known tool does not allow to realize the principle of fractional deformation to reduce the load on the shaft.

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Цель изобретени - расширение технологических возможностей инструмента.The purpose of the invention is to expand the technological capabilities of the tool.

Поставленна цель достигаетс тем, что каждый валок выполнен по меньшей мере с одним торцовым секторным выступом , имеющим внутреннюю вогнутую деформирующую поверхность, при этом каж- да точка секторного выступа одного валка расположена симметрично относительно оси прокатки соответствующей ей точке секторного выступа .другого валка, а ширина каждого секторного выступа равна хорде, ст гивающей точки пересечени двух окружностей, образованных продолжением внутренних поверхностей секторных выступов .This goal is achieved by the fact that each roll is made with at least one end sector protrusion having an internal concave deforming surface, with each point of the sector protrusion of one roll symmetrically relative to the axis of rolling of the corresponding point of the sector protrusion of the other roller, and width Each sector protrusion is equal to the chord of the intersecting point of two circles formed by the continuation of the internal surfaces of the sector protrusions.

Такое выполнение инструмента позвол ет придать деформирующим поверхност м ту или иную конфигурацию в зависимостиSuch an embodiment of the tool allows deforming surfaces to be given this or that configuration depending on

5 от вида накатываемого профил (шлицевого , зубчатого, резьбового или гладкого), а также легко реализовать принцип дробности деформации дл снижени нагрузок на валки за счет наличи нескольких выступов5 of the type of rolling profile (slotted, serrated, threaded, or smooth), and it is also easy to implement the principle of fractional deformation to reduce the load on the rolls due to the presence of several projections

и возможности выполнени их внутренних деформируюших поверхностей с различными радиусами.and the possibility of performing their internal deforming surfaces with different radii.

Claims

FIG. 1 shows the proposed tool, a section along the rolling axis; in fig. 25 - the same, cross section of various provisions when rolling products. The tool for rolling products comprises a pair of ring-shaped rolls 1 and 2, the rotation axes 0 | -Oi and Og-Og of which are shifted on either side of the rolling axis X-X by equal distances. Each roll of this pair has sector protrusions 3 at the end with internal concave deforming surfaces 4 and is set with respect to another roller so that each point At sector pie of roller 1 is located symmetrically with respect to the rolling axis XX corresponding to point AZ of pie sector roller 2, and the width of each sector projection is equal to the chord, which draws the intersection point of two circles formed by the continuation of the internal surfaces of the four sector projections 3. The proposed tool works as follows th. Rolling products while rotating the rolls 1 and 2 and the workpiece 5 in the same direction between the inner deforming surfaces of the 4 sector protrusions 3. In the course of this rotation, the sector protrusions 3 sequentially come into contact with the workpiece 5, roll it and come out of contact with by her. Upon further rotation of the rolls 1 and 2, the protrusions 3 move away from the workpiece, and the next protrusions come into contact with it. At the time of removal of the projections 3, axial feeding of the workpiece 5 into the rolls is carried out. Claims An instrument for rolling products comprising a pair of ring-shaped rollers forming inner gauge internal concave deforming surfaces, with axes offset at equal distances from the axis of rolling, characterized in that, in order to expand technological capabilities, each roller is made at least with one end sector protrusion having an internal concave deforming surface, each point of the sector protrusion of one roll is located symmetrically with respect to the rolling axis, respectively the point of the sector protrusion of the other roll, and the width of each sector protrusion is equal to the chord, which draws the intersection point of two circles formed by the continuation of the internal surfaces of the sector protrusions. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 536873, cl. B 21 N 1/00, 10.27.75.

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