SU1570883A1

SU1570883A1 - Method and apparatus for abrasive working of parts

Info

Publication number: SU1570883A1
Application number: SU874344288A
Authority: SU
Inventors: Вячеслав Николаевич Чучалин; Анатолий Акимович Васин; Сергей Викторович Щепелев
Original assignee: Предприятие П/Я В-8062
Priority date: 1987-11-17
Filing date: 1987-11-17
Publication date: 1990-06-15

Abstract

Изобретение касаетс абразивной обработки, в частности отделочной обработки деталей свободным абразивом. Цель изобретени - интенсификаци процесса обработки. Способ абразивной обработки деталей заключаетс в воздействии на вращающийс абразивно-воздушный поток, образованный за счет действи на абразивную массу с размещенными в ней детал ми равнонаправленных струй сжатого воздуха, встречным потоком меньшей интенсивности. Последний образуют дополнительными стру ми сжатого воздуха, причем интенсивность обоих потоков циклично взаимоизмен ют в импульсном режиме. Отделочна установка дл осуществлени данного способа обработки содержит рабочую камеру, выполненную в виде двух конических чаш 1 и 2, соединенных между собой большими основани ми. В днище нижней чаши 2 установлена крышка 5, на наружной поверхности которой равномерно по окружности выполнены сопловые отверсти 6, соединенные посредством канала 8 с распределителем воздуха 10. Между сопловыми отверсти ми 6 крышки 5 выполнены дополнительные сопловые отверсти 7, которые соединены с распределителем воздуха 10 посредством канала 9. Сопловые отверсти 7 выполнены под углом и встречно основным сопловым отверсти м 6. Давление сжатого воздуха, подаваемого в сопловые отверсти 6 и 7, циклично взаимоизмен ют в импульсном режиме. 2 с.п.ф-лы, 4 ил.The invention relates to abrasive machining, in particular the finishing treatment of parts with a free abrasive. The purpose of the invention is to intensify the process. The method of abrasive machining of parts consists in influencing the rotating abrasive-air flow, formed due to the effect on the abrasive mass with parts of unidirectional compressed air jets placed in it, with a counter stream of lesser intensity. The latter is formed by additional jets of compressed air, the intensity of both streams cyclically mutually changing in a pulsed mode. The finishing installation for carrying out this treatment method comprises a working chamber made in the form of two conical bowls 1 and 2 interconnected by large bases. In the bottom of the lower bowl 2, a lid 5 is installed, on the outer surface of which evenly circumferentially formed are nozzle holes 6 connected by a channel 8 to an air distributor 10. Between the nozzle holes 6 of the lid 5 additional nozzle holes 7 are made, which are connected to the air distributor 10 by channel 9. The nozzle holes 7 are made at an angle and opposite to the main nozzle holes 6. The pressure of the compressed air supplied to the nozzle holes 6 and 7 cyclically interchange in a pulsed mode. 2 sp.f-ly, 4 Il.

Description

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Claims

Claim

1. The method of abrasive treatment of parts, in which the abrasive mass with the parts placed in it is affected by uniformly directed jets of compressed air with the formation of a rotating abrasive-air flow, characterized in that, in order to intensify the processing process, the rotating abrasive-air flow is affected by a counter flow lower intensity, which is formed by additional jets of compressed air, and the intensity of both flows cyclically interchange in the pulsed mode.

2. A device for abrasive processing of parts, containing a working chamber made in the form of two conical bowls connected by large bases to one another, in the bottom of which there is a lid with circumferentially arranged uniformly directed nozzle openings connected to a compressed air distributor, characterized in that in the cover between the nozzle holes are made at an angle to them additional

AA counter-directed nozzle openings connected to a compressed air distributor.