SU897479A1

SU897479A1 - Duplicating-grinding machine

Info

Publication number: SU897479A1
Application number: SU792807499A
Authority: SU
Inventors: Николай Михайлович Нестеров; Олег Павлович Бордовский; Рахиль Моисеевна Бордовская
Original assignee: Предприятие П/Я В-8683
Priority date: 1979-08-10
Filing date: 1979-08-10
Publication date: 1982-01-15

Description

(54) КОПИРОВАЛЬНО-ШЛИФОВАЛЬНЫЙ СТАНОК ДЛЯ ОБРАБОТКИ ПРОФИЛЯ ЛОПАТОК(54) COPY-GRINDING MACHINE FOR PROFILING PROFILE OF BLADE

II

Изобретение относитс к шлифованию и может быть использовано при обработке сложных объемных поверхностей, например поверхностей лопаток ГТД.The invention relates to grinding and can be used in the treatment of complex volume surfaces, such as the surfaces of GTE blades.

Известны копировальнр-шлифовальные станки дл обработки профил лопаток, содержащие станину, на которой размещены приводы подачи на врезание, несущий ходовой винт, и вращени щлифовального круга , а также установленный с возможностью возвратно-поступательного перемещени стол со смонтированным на нем копировальным механизмом, на одной оси которого установлены бабка дл закреплени обрабатываемой детали и копир 1.Copier grinding machines for blade profile processing are known, containing a frame on which are placed the feed drives for plunging, carrying the lead screw and the grinding wheel, as well as the reciprocating table mounted on it with a copying mechanism on one axis which the headstock for fixing the workpiece and the copier 1 are installed.

Недостатком известныхстанков вл етс их низка производительность.A disadvantage of known machines is their low productivity.

Цель изобретени - повышение производительности .The purpose of the invention is to increase productivity.

Поставленна цель достигаетс тем, что станок снабжен клиновым упором и установленным с возможностью взаимодействи с ним ползуном с роликами, при этом ползун жестко св зан в осевом направлении с ходовым винтом привода подачи на врезание , который снабжен микрометрическим винтом с нониусом.The goal is achieved by the fact that the machine is equipped with a wedge stop and a slider mounted with the ability to interact with it with rollers, while the slider is rigidly connected in axial direction with the drive screw of the feed drive, which is equipped with a vernier micrometer screw.

На фиг. 1 изображена гидромеханическа схема станка, где условно совмещены в одной плоскости элементы копировального механизма и механизма подачи на врезание; на фиг. 2 - сечение А-А на фиг. 1; 5 на фиг. 3 - сечение Б-Б на фиг. 1.FIG. 1 shows the hydromechanical scheme of the machine, where the elements of the copying mechanism and the infeed feed mechanism are conditionally combined in one plane; in fig. 2 is a section A-A in FIG. one; 5 in FIG. 3 is a section BB in FIG. one.

Станок содержит станину 1, на которой закреплены механизм привода абразивного инструмента 2, и механизм подачи на врезание , содержащий копировальный ролик 3, пиноль 4, ходовой винт 5, конические шестерни 6 и 7, маховичок 8, ползун 9, ролики 10 и 11, поперечный клиновой упор 12, щток 13, гидроцилиндр 14, микрометрический винт 15, нониус 16, электрогидравлический золотник 17. Сверху на станке установлен стол (не показан), на котором смонтирована чалка 18 копировального механизма, несуща на себе бабку 19 дл закреплени обрабатываемой детали 20, объемный копир 21, распределительный вал 22 с кулачками 23 и 24 и конечный выключатель 25.The machine includes a frame 1, on which is fixed the drive mechanism of the abrasive tool 2, and the feed mechanism for plunging, containing a copy roller 3, quill 4, lead screw 5, bevel gears 6 and 7, handwheel 8, slider 9, rollers 10 and 11, transverse wedge stop 12, brush 13, hydraulic cylinder 14, micrometer screw 15, nonius 16, electro-hydraulic spool 17. On top of the machine, there is a table (not shown) on which the chalk 18 of the copying machine is mounted, bearing the headstock 19 for fixing the workpiece 20, bulk mine 21, a camshaft 22 with cams 23 and 24 and the limit switch 25.

Claims

The operation of the device for automatic shifting and the effect of its use in the case when it is necessary to compensate for the failure in one section of the profile is shown in FIG.

2. Here: a is the volume of the copier material. removed from the profile as a result of uneven wear hp errors during fine-tuning (“profile failure); b - metal layer, which is necessary to remove the correct profile correction; c - a layer of metal that can be removed when the profile is corrected, if the machine is equipped with an automatic shift mechanism; guide - non-working sections of the copier profile, which correspond to the edges of the pen of the blade to be processed; e is the shift of the sections of the copier profile to which the shift of the camcorder adjusted by the screw 15 must correspond The machine works as follows. Using a micrometer screw 15, the value of the automatic shift is predetermined by the measurement of the blade blank or by measuring the wear of the copier. The cams 23 and 24 of the camshaft 22 are fixed at an angular position corresponding to the beginning and end of the shear sections of the profiles. The workpiece 20 is installed in the head 19 of the rocker 18, the drive of the abrasive tool is turned on. By turning the handwheel 8, the quill 4 is lowered, and with it the rocking chair 18, before the tool is inserted into the workpiece by the required amount. The longitudinal passes of the part relative to the tool and turning the string around the axis will remove the allowance. When the specified angle of rotation of the copier 21 with detail 20 (usually on the border of the sections of the back and trough profiles), the cam 23 of the camshaft 22 presses the limit switch 25, which gives a command to the spool 17 controlling the hydraulic cylinder 14. The transverse wedge stop 12, the slider 9 is moved to the desired amount of shift, and with it by means of a screw 5 quill 4 with a copy roller 3, lift or lower the rocking chair 18 with a volume copier 21 and the workpiece 20, thereby reducing if increasing the value removes allowance. Upon further rotation of the volume copier 21 and reaching the boundary of the portion of the shifted profile, the second cam 24 commands the automatic shift mechanism, and the entire system is set in the initial position. Thus, the proposed machine allows to increase productivity by eliminating idle strokes. The invention of a copy grinding machine for processing a blade profile containing a frame on which are placed the feed drives for plunging, carrying the lead screw and rotating the grinding wheel, as well as a table mounted with reciprocating movement with a copying mechanism mounted on it, on one axis a headstock is installed to secure the workpiece and a copier, characterized in that, in order to increase productivity by eliminating idle passes, it is equipped Linova abutment and mounted to cooperate with it slide with rollers, wherein the slider fixedly coupled axially to the spindle drive infeed which is provided with a vernier micrometer. Sources of information taken into account during the examination 1. Copy grinding machine mod. LS-1A-0800P. “Metal-cutting machines and automatic lines. 1974, No. 2, p. 25-30,

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