SU774822A1

SU774822A1 - Spindle for vibratory cutting

Info

Publication number: SU774822A1
Application number: SU782686974A
Authority: SU
Inventors: Абрам Ефроимович Кропп; Александр Яковлевич Рызванович; Михаил Игоревич Касаткин; Игорь Семенович Козырев; Карл Валентинович Шредер; Михаил Петрович Ерочкин
Original assignee: Ярославский политехнический институт
Priority date: 1978-11-21
Filing date: 1978-11-21
Publication date: 1980-10-30

Description

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Изобретение относитс к области станкостроени к может быть использовано в силовых головках и металлорежущих станках.This invention relates to the field of machine tool construction and can be used in power heads and machine tools.

Известен привод шпинлел дл виб- 5 рационного резани , включающий коробку скоростей, шпиндель и три диска, один из которых, промежуточный, установлен в подшипнике с обоймой, шарнирно св зак.чой со стойкой, с возмож- ностью перемещени относительно паслед ней ij.The known spindlel drive for vibratory cutting includes a gear box, a spindle and three disks, one of which, intermediate, is installed in a bearing with a holder, hingedly connected with a stand, with the possibility of movement relative to the last ij.

Недостаток .такого привода - сложность конструкции.The disadvantage of such a drive is the complexity of the design.

Цель изобретени - упрощение кон- 15 струкции.The purpose of the invention is to simplify the design.

Дл этого промежуточный диск установлен на шпинделе с зазором, а крайние диски снабжены ступенчатыми пальцами с диаметрами, расположенны- 20 ми эксцентрично один относительно другого.For this, the intermediate disk is mounted on the spindle with a gap, and the extreme disks are equipped with stepped fingers with diameters that are located eccentrically one relative to another.

На фиг, 1 изображен привод шпиндел дл вибрационного резани на фиг. 2 - устройство дл создани виб25 рации) на фиг. 3 - сечение А-А на фиг. 2.FIG. 1 shows a spindle drive for vibratory cutting in FIG. 2 is a device for creating a vibration) in FIG. 3 is a section A-A in FIG. 2

Привод шпиндел вибрационного резани состоит из электродвигател 1, коробки скоростей 2, шпиндел 3 (он 30The vibration cutting spindle drive consists of an electric motor 1, a gearbox 2, a spindle 3 (it is 30

же выходной вал коробки скоростей) и устройства дл создани вибрации 4, На шпинделе 3 без возможности поворота установлен диск 5, с возможнсстью поворота установлен диск 6 и свободно надет с зазором промежуточный диск 7, В диски 5 и 6 одним концом вставлены ступенчатые пальцы 8 с диаметрами , расположенными эксцентрично один относительно другого. Другим концом пальц-Ы 8 вход т в соответствующие расточки диска 7. Диск 7 установлен в подшипнике 9, наружна обойма которого размещена в корпусе подшипника 10 и шарнирно соединена посредством шпильки 11 со стойкой 12, установленной на пиноли шпиндел посредством клеммового зажима. Между собой диски 5, 6 и 7 св заны только ступенчатыми пальцами 8. Диск 5 зафиксирован на шпинделе 3 с помощью клиньев 13, которые фиксируютс кольцом 14.same gearbox output shaft and device for creating vibration 4, disk 5 is mounted without rotation; disk 5 is installed; disk 6 is installed with rotation and intermediate disk 7 is loosely fitted with a gap; step 5 fingers are inserted into disks 5 and 6 at one end diameters eccentric to each other. The other end of the finger-8 enters into the corresponding bores of the disk 7. The disk 7 is mounted in the bearing 9, the outer cage of which is housed in the bearing housing 10 and pivotally connected by means of a stud 11 to the stand 12 mounted on the spindle spindle through a terminal clip. Between them, the disks 5, 6, and 7 are connected only by stepped fingers 8. The disk 5 is fixed on the spindle 3 by means of wedges 13, which are fixed by a ring 14.

Диск 6 выполнен в виде гильзы, котора установлена в подшипниках качени 15 на специальном удлинителе шпиндел 16. Диск 6 жестко соединен с патроном 17.The disk 6 is made in the form of a sleeve, which is mounted in rolling bearings 15 on a special spindle extension 16. The disk 6 is rigidly connected to the chuck 17.

Claims

A device for adjusting the amplitude of modulating the tangential velocity of the spindle on the move and under load includes studs 11 screwed into the sub-housing 10 and adjusting screws 18. The drive of the spindle for vibratory cutting works as follows. The rotation from the electric motor 1 is communicated to the input shaft of the gearbox 2, reduced to the required magnitude AND is communicated by the spindle 3 and the disk 5 connected to it, the disk 5 through the stepped pin 8 rotates the intermediate disk 7, which through the finger 8 drives the disk 6 with the chuck 17. In the case when the axes of rotation of the disks 5, b and 7 coincide (the eccentricity of the intermediate disk 6 is zero), the spindle 3 rotates uniformly, and the spindle drive for vibratory cutting is equivalent in its work to the vibration-free drive, which is very convenient. If several rotations of screws 18 are made, for example clockwise, the center of the bearing housing 10 will move relative to the center of the spindle 3 a certain distance. In this case, due to the presence of the central hole, the intermediate disc 7 will also be displaced along with it by the same distance. Therefore, the axis of rotation of the intermediate disk will not coincide with the axis of rotation of disks 5 and 6 and the spindle. In this case, the eccentricity of the intermediate disk will be equal to a certain value. Due to the presence of eccentricity, the spindle 3 will rotate unevenly, creating sign-like modulation of speed in the tangential direction. The invention provides a spindle drive for vibratory cutting, including a gearbox, a spindle and three discs, one of which, in between, is mounted in a bearing with a yoke hinged to the stand, which is movable relative to the latter, characterized in that, in order to simplify the construction, an intermediate disk is mounted on the spindle with a gap, and the extreme disks are provided with stepped fingers that are eccentrically located one relative to the other. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2543717 / 25-08, cl. at 23 at 47/04, 11/17/77.

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