SU884876A1

SU884876A1 - Double-jaw self centring chuck

Info

Publication number: SU884876A1
Application number: SU792797625A
Authority: SU
Inventors: Леонид Кузьмич Новиков
Original assignee: Витебское Специальное Конструкторское Бюро Зубообрабатывающих Шлифовальных И Заточных Станков
Priority date: 1979-07-16
Filing date: 1979-07-16
Publication date: 1981-11-30

Description

1one

Изобретение относитс к механической обработке материалов, а именно к устройствам дл закреплени деталей на токарных станках, внутришлифовальных и заточных.The invention relates to the machining of materials, namely, devices for fixing parts on lathes, intra grinders and sharpeners.

Известен двухкулачковый самоцентрирующий патрон, содержащий корпус, в направл ющих которого с возможностью радиального перемещени посредством винта установлены основные кулачки с зажимными элементами 1.A two-cam self-centering cartridge is known, comprising a housing, in guides of which main cams with clamping elements 1 are installed with the possibility of radial movement by means of a screw.

Недостатком указанного патрона вл етс возможность попадани стружки, смазочно-охлаждаю1цей жидкости G абра-. зивом на трущиес поверхности деталей патрона что приводит к их быстрому износу. .The disadvantage of this cartridge is the possibility of chips, cooling lubricant G abra-. zivom on the rubbing surface of the parts of the cartridge that leads to their rapid wear. .

Цель изобретени - повышение долговечности патрона.The purpose of the invention is to increase the durability of the cartridge.

Указанна цель достигаетс тем, что корпус патрона выполнен в виде двух симметричных планшайб со срезами , параллельными оси патрона и сегментов, жестко прикрепленных к поверхност м срезов планшайб, а каждый основной кулачок выполнен в виде цилиндрической направл ющей с опорами, св занной с винтом посредством введенного в корпус кронштейна, причем одна опора цилиндрической направл ю2This goal is achieved by the fact that the body of the cartridge is made in the form of two symmetrical faceplates with cuts parallel to the axis of the cartridge and segments rigidly attached to the surfaces of the faceplate cuts, and each main cam is made in the form of a cylindrical guide with supports connected with a screw by means of into the body of the bracket, with one bearing cylindrical directions S2

щей размещена в разъеме корпуса, а друга - в сегменте.The connector is located in the housing connector, and the other is in the segment.

На фиг. 1 изображен предлагаемый патрон, разрез; на фиг. 2 - разрезА-А на фиг. 1.FIG. 1 shows the proposed cartridge, the cut; in fig. 2 is a section A-A in FIG. one.

Патрон содержит корпус 1, состо щий из двух симметричных планшайб со срезами 2. В разъеме 3 корпуса 1 установлены опоры 4 с упругими эле10 ментами 5. К срезам 2 корпуса 1 прикреплены сегменты 6, в которых опоры. 7 и 8, имеющие упругие элементы 9 и 10. В опорах 4 и 7 установлены основные кулачки - цилиндрическиеThe cartridge includes a housing 1 consisting of two symmetrical faceplates with sections 2. In the connector 3 of the housing 1, there are supports 4 with elastic elements 5. The sections 6 of housing 1 are attached with segments 6 in which there are supports. 7 and 8, having elastic elements 9 and 10. In the supports 4 and 7, the main cams are installed - cylindrical

15 направл ющие 11, несущие зажимные : элементы призмы 12. Направл ющие 11 посредством кронштейнов 13 соединены с винтом 14. Винт 14, имеющий правую и левую резьбу, установлен в опо20 «pax 8 и зафиксирюван посредством их от осевого перемещени . К торцам корпуса 1 и сигментов 6 прилегают фланцы 15 и 16, которые закрывают внутреннюю полость патрона и скрепл ют15 guides 11 carrying the clamping elements of the prism 12. The guides 11 are connected to the screw 14 by means of brackets 13. A screw 14, having a right and left thread, is mounted in an axle of 20 pax 8 and fixed by axial movement. The ends of the housing 1 and the segments 6 are flanged by flanges 15 and 16, which cover the internal cavity of the cartridge and fasten

25 его планшайбы. Фланец 15 обеспечивает , установку и центрирование патрона в шпинделе станка (не показан).25 of his faceplate. The flange 15 provides the installation and centering of the cartridge in the spindle of the machine (not shown).

Claims

The cartridge works as follows. When installing the workpiece in the prisms 12, the screw 14 is rotated. in this case, the brackets 13 mix the guides 11 with the prisms 12, which center and clamp the part. Due to such a two-cam self-centering cartridge, all its movable elements are reliably protected from falling on them the dust of coolant and abrasive, which ensures their increased durability and, consequently, greater durability of the cartridge. Claims of the invention A two-cam self-centering cartridge, comprising a housing, in guides of which main cams with clamping elements are installed with the possibility of radial movement by means of a screw, characterized in that, in order to increase the durability of the cartridge, its body is made in the form of two symmetrical faceplates with slices parallel the axis of the cartridge and the segments rigidly attached to the planes of the slice of the faceplates, and each main cam is made in the form of a cylindrical guide with supports connected to a screw along means inserted into the housing of the bracket, with one support cylindrical guide placed in the connector housing, and the other - in the segment. Sources of information taken into account in the examination 1. M. Anserov. Accessories for machine tools. L., Mechanical Engineering, 1975, p. 381, fig. U1, 25 b.

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