SU686836A1

SU686836A1 - Device for finishing of spur gears

Info

Publication number: SU686836A1
Application number: SU772480481A
Authority: SU
Inventors: Николай Эммануилович Тернюк; Владимир Борисович Варшавский
Original assignee: Предприятие П/Я А-1495
Priority date: 1977-04-25
Filing date: 1977-04-25
Publication date: 1979-10-10

Description

Изобретение относитс к металлообработке , в частности к производству зубчатых колес.This invention relates to metal working, in particular to the manufacture of gear wheels.

Известно устройство дл отделки цилиндрических зубчатых колес, на основании которого установлены две инструментальные головки, несущие два св занных кинематической цепью инструмента, и приспособление дл закреплени цилиндрического колеса с центрирующим элементом 1.A device for trimming cylindrical gears is known, on the basis of which two tool heads are mounted, carrying two associated kinematic chain tools, and a device for securing a cylindrical wheel with a centering element 1.

В известных устройствах нельз примен ть дисковые щеверы, зубь которых расположены на одном из торцов диска (неэвольвентные шеверы), имеющие повышенную жесткость и обеспечивающие благопри тные услови резани .In the known devices it is not possible to use disk shapers, the teeth of which are located at one of the disk ends (non-involute shavers), which have increased rigidity and provide favorable cutting conditions.

Цель изобретени - повышение точности отделки за счет использовани торцовых шеверов.The purpose of the invention is to improve the accuracy of the finish through the use of face shavers.

Дл этого в предлагаемом устройстве кинематическа св зь двух инструментов выполнена жесткой и снабжена приводом периодического сближени шеверов, оси которых расположены на одной пр мой, перпендикул рной оси центрирующего элемента.To do this, in the proposed device, the kinematic connection of two tools is rigid and is equipped with a drive for periodically drawing together the shavers, whose axes are located on one straight, perpendicular axis of the centering element.

На чертеже дана принципиальна с.хема описываемого устройства.In the drawing, the principal scheme of the described device is given.

Устройство содержит два неэвольвентных дисковых торцовых щевера 1 и 2, между ос ми 3 и 4 которых имеетс жестка кинематическа цепь 5. Оси 3 и 4 расположены на одной пр мой, перпендикул рной к оси центрирующего элемента установочнозажимного приспособлени 6. Зубь 7 и 8 инструментов соответственно расположеныThe device contains two non-involute disk face shuvers 1 and 2, between axes 3 and 4 of which there is a rigid kinematic chain 5. Axes 3 and 4 are located on the same straight line perpendicular to the axis of the centering element of the fixing device 6. Tooth 7 and 8 of the tools, respectively located

на торцах дисков и представл ют собой огибающие эвольвентной поверхности.at the ends of the disks and are envelopes of the involute surface.

Claims

The wheel to be machined is centered and fixed with the possibility of rotation on the axis of the centering element of the fixing device 6, and then introduced into a two-profile (or single-profile) engagement with the drivers. With the help of the actuator 9, the periodic convergence of the shavers ensures the introduction of the teeth of the shavers into the teeth of the wheel. The correct engagement of the machined wheel with shavers is achieved by placing the tool axes on one straight, perpendicular to the axis of the centering element of the mounting and clamping device, which coincides with the technological axis of the wheel at the time of machining. When the drivers are rotated by the driver 10, the wheel to be machined turns, resulting in a cutting process and an increase in the finish accuracy of this wheel. Improved wheel machining accuracy (including those with a small number of teeth) is achieved through the synchronous rotation of disc face shavers, which provide an increased overlap ratio and more favorable cutting conditions than involute shapers, and the hard high-precision kinematic connection between tool axes is not allows radial errors to transform into tangential errors when running. Claims The device for finishing cylindrical gears, on the basis of which two tool heads are installed, carrying two connected with a kinematic chain of tools, and a device for fixing a cylindrical wheel with a centering element, characterized in that, in order to improve the accuracy of finishing due to the use of face shchevers The kinematic connection is rigid and is supplied with a drive for periodic approaching of the shavers, whose axes are located on the same straight, perpendicular axis of the center. element Sources of information taken into account during the examination 1. USSR author's certificate No. 564109, cl. In 23 F 19/05, 1974.