SU882730A1

SU882730A1 - Roller-type expander

Info

Publication number: SU882730A1
Application number: SU792852846A
Authority: SU
Inventors: Владимир Александрович Заикин
Original assignee: Ростовский-на-Дону научно-исследовательский институт технологии машиностроения
Priority date: 1979-12-17
Filing date: 1979-12-17
Publication date: 1981-11-23

Description

(54) РОЛИКОВАЯ РАСКАТКА(54) ROLLER ROLLING

II

Изобретение относитс к металлообработке , а частности к инструментам дл обработки металлов пластическим деформированием, и может быть использовано дл чистовой и упроч- . н ющей обработки внутренних поверхностей деталей.The invention relates to metalworking, and in particular to tools for the treatment of metals by plastic deformation, and can be used for finishing and strengthening. naya processing of internal surfaces of details.

Известны раскатки, содержащие оправку, в которой под углом к ее оси расположены деформирующие ролики , контактирующие с опорным элементом 1.Known rolling, containing the mandrel, in which at an angle to its axis are deforming rollers in contact with the supporting element 1.

Недостатком известной раскатки вл етс то, что деформирующие поверхности частей ролика выполнены с разными заборными и обратными углами . У одной части ролика заборной вл етс радиусна часть, а обратной - торцова , а у другой - наоборот , что приводит к возникновению неравномерного п тна контакта и снижению качества обработки. Помимо этого регулирующим элементом между част ми ролика вл етс мерна шайба , котора не позвол ет производить поднастройку рабочего размера раскатки в процессе обработки.A disadvantage of the known rolling is that the deforming surfaces of the roller parts are made with different intake and return angles. One part of the intake roller is the radius part, and the reverse part is the end part, and the other part is the opposite, which leads to an uneven contact patch and a decrease in the quality of processing. In addition, the regulating element between the parts of the roller is a dimensional washer, which does not allow the adjustment of the working size of the rolling process.

Цель изобретени - повышение производительности и качества обработки.The purpose of the invention is to increase the productivity and quality of processing.

Эта цель достигаетс тем, что в роликовой раскатке, содержащей установленный под углом в оправке деформирующий ролик, выполненный из сопр женных торцами частей, св занных регулирующим-элементом, части ролика размещены в оправке несоосно,причем оси всех частей ролика расположении на единой конической поверхности.This goal is achieved by the fact that in roller rolling containing a deforming roller installed at an angle in the mandrel, made of parts connected by a control element, the parts of the roller are placed non-axially in the mandrel, and the axes of all parts of the roller are located on a single conical surface.

На фиг.1 изображена предлагаема роликова раскатка , на фиг.2 - разрез /А-А на фиг. 1.Figure 1 shows the proposed roller rolling, figure 2 - section / A-A in FIG. one.

Claims

The proposed rolling expansion consists of a mandrel 1, carrying deforming rollers 2-7, the ends of which are matched with each other by means of a regulating element 8, made in the form of a ball, mounted to move in the hole 9 the axes of the mandrel 1 under the influence of the plug 10 and interacting with elastic element 11. The axes of all rollers 2-7 lie on a uniform conical surface, the top of which is at the point of intersection of the axes of the roller parts with the axis of the mandrel. The installation angle of all rollers 2-7 is chosen so as to ensure simultaneous contact of the deforming surfaces of the rollers with the surface of the hole being machined. The work of the proposed roller is carried out as follows. zom. Pre-rollers 2-7 rolls are adjusted to the desired size of processing by moving the ball 8 with the stopper 10. The workpiece is set, fixed on the machine and the working movements of the rotation and feed are communicated to it and the rolling. The deforming surfaces of the rollers 2-7 simultaneously come into contact with the workpiece and, due to a given tension of treatment, produce plastic deformation of the asperities of the surface to be treated. Each of the rollers 2-7, rotating around its axis, contacts the ball 8 at a point, which reduces friction on the surface of their contact, and the ball 8 under the influence of the elastic element 11 constantly contacts the plug 10, THAT eliminates its spontaneous movement along the axis of the mandrel 1 in the hole 9 and the violation of the specified size of processing. Due to the placement in the mandrel 1. at the same time working, the rollers 2-7, the working feed of the roller roll increases in proportion to the number of parts of the roller without compromising the quality of processing. Since rollers 2-7 are placed in such a way that their axes lie on a single conical surface, all parts of the roller have the same intake and reverse deforming surfaces, which makes it possible to obtain the same contact points of these parts of the roller with the workpiece. 4 At the end of the working stroke, the treatment is stopped. If it is necessary to reconfigure roller rolling to another working size, the rollers are moved by 2-7 ball 8, and the stepless adjustment of the working size is carried out. Thus, placing the roller parts in the proposed roller rolling does not align the number of roller parts more than two in one row, which improves the processing performance in proportion to the number of roller parts, and placing their axes on a single conical surface makes it possible to work with the same intake parts and inverse deforming surfaces, which increases. em quality processing at 15-25 compared with the known rolling. The implementation of the adjustment element in the form of a ball mounted with the possibility of movement along the axis of the mandrel allows stepless adjustment of the working size of the rolling. Claim 1. Roller rolling, holding the mandrel, in which deforming rollers are located at an angle to its axis in contact with the supporting element, in order to increase the productivity and quality of processing, the supporting element is made in the form of a ball mounted with adjustable, with the deforming rollers in contact with the supporting element with their ends, and their axes are located on a single conical surface.

2. Raskatka according to claim 1, that is, so that the parts of the roller may be more than two. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 368996, cl. B 24 B 39/02, 1971.

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