SU994147A1

SU994147A1 - Self-centring chuck

Info

Publication number: SU994147A1
Application number: SU813334124A
Authority: SU
Inventors: Леонид Аркадьевич Васильевых; Юрий Леонидович Апатов; Андрей Иванович Тарасов
Original assignee: Кировский Политехнический Институт
Priority date: 1981-09-04
Filing date: 1981-09-04
Publication date: 1983-02-07

Description

(54) еАМОЦЕНТРИРУЮЩИЙ ПАТРОН(54) EAMO CENTERING CARTRIDGE

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Йзс ретевие относитр к области станкостроени и может быть вспопьзовано при эагфёплевии деталей на станках токарного л па с автс 1атнэированным циклом обработки.The work is related to the field of machine-tool construction and can be utilized during the eagfeplia of parts on lathe machines with an automatic machining cycle.

: Известен патрон, содержашвй корпус, спирально-реечный механизм перемещени куланков, шестерни прнвсша спирального диска и подводимый фиксатор : Known cartridge, containing body, spiral-pinion mechanism for moving cages, gears of a spiral disk and input lock

Недостатками известного патрона в- ю л ютс низкие надежность и доаг юечнос:ть« . Цепь изобретени - повышение надежности и дбпговечности патронаThe disadvantages of the known cartridge are low reliability and reliability: “. The circuit of the invention - improving the reliability and dbggvechnosti cartridge

С этой ле ыо предлагаемый патрон сйабжен установленным на корпусе пат- fs рона с во этлс кностыо вращени кооьишд с выполненнь1ми нем коническим зубчатым венпом и гнездамн, пре шадначенными Дл взаимодействи с указанным 4 1ксатором, а шестерни привода спнраль-20 ного диска также снабжены коническими зубчатыми венцами, предназначенными дл взаимодействи с коническим венцом кольца.From this le, the proposed cartridge is mounted on the body of the fs-ron with this kostyo of rotation of the coiishd with its conical toothed venp and sockets, preceded by the interaction crowns designed to interact with the conical crown of the ring.

На чертеже показан патрон, .осевоА разрез.The drawing shows a cartridge, an Acex section.

Патрон содержит корпус 1, на котором с возможностью вращени установлено кольцо 2 с ш п101лненш 1ми на нем коническим зубчатым венцоМ 3 и гнездами 4. Гнезда 4 взаимодействуют с периодическн подводимым подпружиненным фиксаторсал В, Венец 3 находитс в посто нном зацеплении с коническими венцами 6 установленных в корпусе шестерен 7, кото рые одновременно зацепл ютс с. конической нарезкоИ спирального приводного диска . 8. Со спираш ю диска, в свою очередь , св заны через зубчатые рейки зажимные кулачки 9,. перемешаюшиес в радиально выполненных в корпусе патрона пазах. Корпус 1 посредством крышки 1О закреплен на шпинделе 11 станка. В патроне о юбатывают деталь 12.The cartridge includes a housing 1, on which a ring 2 is mounted rotatably with w n101lnensh 1m on it with a conical gear M 3 and sockets 4. The sockets 4 interact with periodically supplied spring-loaded locking mechanism B, the Crown 3 is in constant engagement with conical rims 6 installed in gear housing 7, which at the same time engage c. conical rifled spiral drive disc. 8. The spiral disk, in turn, is connected via a toothed rack clamping jaws 9 ,. mix in the slots radially made in the cartridge case. Case 1 by means of the cover 1O is fixed on the spindle 11 of the machine. In chuck about jubile detail 12.

Патрон работает следующим образом.The cartridge works as follows.

Claims

When attaching the workpiece 12, include the ojuiy of the lowest possible spindle speeds, a. 3. 99414 latch 5 is brought to ring 2, where it falls into one of the sockets 4. The workpiece is being supported on the center line of the machine at this time, for example, by gripping the manipulator. As a result, 5 of the latch 5 interacting with ring 2, the latter stops and starts slide with the spindle to the housing 1 in relation to the rotation of the shchamus 1. At that, the gear 7, turning, H rotates the spiral disk 8, and the gear ratio of the conical pairs is chosen such that the frequency of rotation of the spiral disk is greater than the frequency of rotation Enclosures. This causes the movement of the clamping cams 9 to the center of the chuck to touch the workpiece 12. When the specified clamping force adjusted by the clamping spring 5 is reached, the cams 9 and gears 7 stop and the spiral disk 8 and the ring 2 begin to rotate synchronously with the body 1, which leads to the spinning of the spring-loaded part of the retainer 5. Then the retainer 5 is retracted from the chuck, the working frequency of the spindle is turned on and the required machining of the part is performed. The unclamping of the cartridge is carried out similarly when reversing the spindle /. . The stroke of the cams 9 after the release of the part 12 may be limited by the timely disconnection of the spindle rotation, or by withdrawing the lock 5 from the ring

2. Parts of the type of rings and bushings are also fastened. The cartridge is rearranged to another part size automatically with the corresponding direction of rotation and the ring 2 is braked with latch 5. The cartridge is characterized by smooth, unstressed work, which is explained by the absence of latch interaction with the housing through jumpers in the sector grooves, as well as a decrease in the spring stroke of the spring portion retainer. This provides an increase in the durability of the cartridge and retainer, in addition, the noise in industrial premises is reduced. Claims A self-centering cartridge comprising a housing, a spiral-rack moving mechanism, cams, spiral disk drive gears and a locking clip, characterized in that in order to increase reliability and durability, the cartridge is fitted with a ring mounted on the body of the cartridge with rotatable conical a gear rim and sockets designed to interact with the said retainer, and the helical disk drive gears are also provided with bevel gear rims, for interaction with the conical crown of the ring. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 856673, cl. B 23 B 31/16, 1979.

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