SU529009A2

SU529009A2 - Cutter head for boring and trimming

Info

Publication number: SU529009A2
Application number: SU1968448A
Authority: SU
Inventors: Израиль Вольфович Белогородский; Борис Моисеевич Бромберг; Александр Соломонович Бурштейн; Аскольд Федорович Дубиненко; Вадим Дмитриевич Праницкий; Александр Моисеевич Фурер; Владимир Исаакович Шехтер
Original assignee: Специальное Конструкторское Бюро Алмазно-Расточных И Радиально-Сверлильных Станков
Priority date: 1973-11-02
Filing date: 1973-11-02
Publication date: 1976-09-25

Description

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Изобретение относитс к области станкостроени и может быть использовано в алмазно-расточных станках.The invention relates to the field of machine tools and can be used in diamond boring machines.

По основному ав.св. 246282 известна резцова головка дл расточки и подрезки, в которой резцедержатели получают радиальные перемещени в результате взаимодействи двух пар роликов, установленных на толкателе , с выполне1шьгми на резцедержател х наклонными пазами, причем кажда пара роликов входит в свой наклонный паз. Ролики установлены на эксцентричных ос х, обеспечивающих возможность регулировки роликов по размеру паза.According to the main av.St. 246282 a known cutting head for boring and cutting, in which the tool holders receive radial movements as a result of the interaction of two pairs of rollers mounted on the pusher, with the slits on the tool holders with inclined grooves, each pair of rollers being inserted into its inclined groove. The rollers are mounted on eccentric axles, providing the possibility of adjusting the rollers to the size of the groove.

Предлагаема резцова головка снабжена дополнительными резцедержател ми, на которых выполнены наклонные пазы, и обхватывающей толкатель подпружиненной в осевом направлении втулкой, две пары роликов , взаимодействующих с пазами этих резцедержателей,The proposed cutting head is provided with additional tool holders, on which inclined grooves are made, and an axially spring-loaded sleeve that surrounds the pusher, two pairs of rollers that interact with the grooves of these tool holders,

На фиг. 1 изобрахсена предлагаема резцова головка дл расточки и подрезки, продольный разрез; на фиг. 2 - разрез по Л-А FIG. 1 depicts the proposed cutter head for boring and trimming, a longitudinal section; in fig. 2 - section along L-A

на фиг. 1; на фиг. 3 - разрез по Б-Б на фиг. 1.in fig. one; in fig. 3 is a section along BB in FIG. one.

Резцова головка состоит из корпуса 1, в пр моугольном пазу которого расположены резцедержатели 2 с щитками 3. Передней стенкой пр моугольного паза служит малый корпус 4, установленный на корпусе 1. В пр моугольном пазу малого корпуса 4 расположены дополнительные резцедержатели 5. На крыщке 6, закрывающей пр моугольный паз малого корпуса 4, закреплен стакан 7.The cutting head consists of a housing 1, in the rectangular slot of which there are tool holders 2 with flaps 3. The front wall of the rectangular groove is a small case 4 mounted on housing 1. In the rectangular groove of the small housing 4 there are additional tool holders 5. On the flap 6, closing the rectangular groove of the small body 4, the glass 7 is fixed.

В центральном отверстии корпусов 1 и 4 размещен толкатель 8, в котором наход тс оси 9 основных роликов 10. Ролики попарно наход тс в наклонном пазу 11 резцедержателей 2, причем каждый ролик контактирует только с одной из противоположных рабочих сторон наклонного паза.A pusher 8 is placed in the central opening of the housings 1 and 4, in which the axes 9 of the main rollers 10 are located. The rollers are in pairs in the inclined groove 11 of the tool holders 2, each roller contacting only one of the opposite working sides of the inclined groove.

Claims

In the central hole of the small body 4 and the lid 6 is placed a sleeve 12, a grip pusher 8. In the sleeve there are axes 13 of additional rollers 14 arranged in pairs in additional slots 15 of additional tool holders 5. Through the flange 16, worn on the threaded end of sleeve 12, the latter is spring-loaded in the seeder the direction of the compression spring 17; the threaded end of the pusher 8 carries the nuts 18. During trimming or changing the bore diameter, the drive (not shown) moves the pusher 8 connected to it 8. In this case, the rollers. 10, on the working sides of the inclined grooves 11, the toolholders 2 are informed of radial movement in opposite directions. The spring 17 holds the sleeve 12 with additional rollers 14 in the extreme right position until the nuts 18 begin to move it. In this case, the rollers 14 impart radial movement to the additional toolholders 5. At the end of the trimming, the movement of the pusher 8 stops, and with it the bushings 12, the rollers 1O and 14, the toolholders 2 and 5. To return the toolholders to their original position, the actuator moves the follower to the right, while the spring 17 moves the sleeve 12 following the nuts 18 moving to the right until the flange 16 stops against the bottom of the sleeve 7. Subsequently, the pusher B moves with the sleeve 12 stopped. Contact of each roller 1O and 14 is only on one of the working sides of the inclined grooves 11 and 15 provides the possibility of gaps in the connection of the rollers with the groove. The tension in the joint is created regardless of the dimensional accuracy of the inclination of the groove and the locations of the rollers, and by creating the cheek axis on which one of the rollers sits, with eccentricity e relative to the rest of the axis. Claim head for boring and trimming auth.St. NO 246282, characterized in that, in order to process stepped holes with spaced ends of unequal width, it is provided with additional tool holders, on which inclined grooves are made, and an axially spring-loaded sleeve, which engages the slots of these tool holders.

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