SU623714A1

SU623714A1 - Apparatus for grinding non-circular article surfaces

Info

Publication number: SU623714A1
Application number: SU762387067A
Authority: SU
Inventors: Адольф Иосифович Лурье; Юрий Борисович Серебренник
Original assignee: Пермский политехнический институт
Priority date: 1976-07-15
Filing date: 1976-07-15
Publication date: 1978-09-15

Description

Изобретение относитс к области станкостроени , а именно к стенкам дл шлифовани некруглых отверстий нлв валов поперечный контур которых отличаетс свойством равноосност (полироннью профили ).The invention relates to the field of machine-tool construction, in particular, to walls for grinding non-circular holes of shaft shaft, the transverse contour of which is characterized by the property of equilibrium (polyron profiles).

Известно устройство ,дл шлифовани некруглых поверхностей изделий, содержащее расположенную в направл ющих станины каретку, установленный в направл ющих каретки корпус шпиндел и два соединенных между собой и нахо- д пшхс в контакте с корпусом н кареткой эксцентрика ij .A device is known for grinding non-circular surfaces of products, comprising a carriage located in the bed guides, a spindle housing mounted in the carriage guides, and two interconnected and located pshhs in contact with the housing n the eccentric carriage ij.

Однако это устройство позвол ет шлифовать полигонный профиль только одного размера. При переходе на обработку другого профил приходитс мен ть эксцентрики .However, this device allows you to grind a polygon profile of only one size. When switching to processing another profile, eccentrics must be changed.

Целью насто щего изобретени вл етс расширение диапазона форм и размеров обрабатываемых поверхностей и повышение точности их воспроизведени путем сдвига фаз ортогональных колебап НИИ шпиндел .The aim of the present invention is to expand the range of shapes and sizes of machined surfaces and to improve their accuracy by shifting the phases of orthogonal oscillations of the research institute of the spindle.

Дл этого в предлагаемом устройстве эксцентрики соединены муфтой, обеспечивающей разворот одного эксцентрика относительно другого. При этом муфта может быть выполнена зубчатой с различным числом зубьев в полу муфтах.For this, in the proposed device, the eccentrics are connected by a clutch, which ensures the reversal of one eccentric relative to another. In this case, the coupling can be made gear with a different number of teeth in the floor of the coupling.

На фиг. 1 изображено устройство, ni перечный разрез; на фиг. 2 - разрез А-А на фиг. 1.FIG. 1 shows a device, ni pepper cut; in fig. 2 shows section A-A in FIG. one.

Шпиндель 1 вращаетс в подшипниках, расположенных в корпусе 2. Корпус может перемещатьс по направл ющим каретки 3. Каретка в свою очередь может перемещатьс по направл ющим станиныThe spindle 1 rotates in bearings located in the housing 2. The housing can move along the guides of the carriage 3. The carriage, in turn, can move along the bed guides

4. Пружина 5 прнжимает корпус 2 к поверхности эксцентрика 6, а пружина 7 прижимает каретку 3 к поверхности эксцентрика 8. Эксцентрики 6 и 8 обработаны совместно и имеют полностью идентичные размеры наружной поверхности. При вращении вала 9 от шкива ременной передачи Ю эксцентрик 8 поворачиваетс и это вращение далее передаетс на полумуфту 11, соединительную муфту4. The spring 5 presses the body 2 to the surface of the eccentric 6, and the spring 7 presses the carriage 3 to the surface of the eccentric 8. The eccentrics 6 and 8 are machined together and have completely identical dimensions of the outer surface. When the shaft 9 rotates from the belt drive pulley, the eccentric 8 rotates and this rotation is then transmitted to the coupling half 11, the coupling sleeve

Claims

12, half coupling 13, shaft 14 n eccentric 6. As a result of the eccentrics acting on the housing 2 and the carriage 3, the latter: oscillate in two mutually perpendicular directions. The addition of these oscillations provides the spindle axis movement along an ellipse. To accommodate the rotational speeds of spindle 1 and kala 9, the guitar is equipped with interchangeable gears (leading gear 15). The rotation from the last gear of the guitar to the cachacadium and chindel is transmitted by the cardan shaft. To regulate the amplitude of the oscillations, the position of the eccentrics 6: and 8 on shafts 14 and 9 is changed by means of intermediate eccentric bushings. The ratio of the axles of the axles is made relative times by turning the shafts 9 and 14. To do this, the coupling 12 is shifted, for example j to the left and turned 0al 14 while the shaft 9 is fixed. After the rotation of the coupling 12 at the predetermined angle, the coupling half again joins . : For an increased accuracy of the relative rotation of the shafts 9n 14 half-hems 11 and 13, each different number. For example, psshumufta 11 has 50 teeth, and a floor-coupling 13 corresponds to 49 aubier. This allows you to adjust the relative rotation of the shafts 9 and 14 with a discreteness of 9 minutes. Such a device can be used for internal grinding and circular grinding machines. The inventive formula is: 1. A device for grinding non-circular surfaces of products, comprising a carriage located in the bed guides, a spindle body mounted in the carriage guide and two interconnected and in contact with the carriage and the carriage an eccentric. Ricke, characterized in that, in order to expand the range of shapes and sizes of machined surfaces and increase the accuracy of their reproduction by shifting the phases of orthogonal oscillations of the spindle, the eccentrics are connected by a clutch ensuring the reversal of one eccentric relative to another.

2. The device according to claim 1, which is based on the fact that the coupling is made gear with a different number of teeth in the coupling half. Sources of information taken into account in the examination: 1. USSR Author's Certificate No. 84432, il. B 24 B 5/16, 1949.

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