SU1578402A1

SU1578402A1 - Automatic limiter of actuating member travel

Info

Publication number: SU1578402A1
Application number: SU884436415A
Authority: SU
Inventors: Владимир Алексеевич Малых; Сергей Борисович Пухов
Original assignee: Предприятие П/Я В-8772
Priority date: 1988-06-06
Filing date: 1988-06-06
Publication date: 1990-07-15

Abstract

Изобретение относитс к машиностроению и может быть использовано в приводах подач металлорежущих станков с механизмами типа винт - гайка. Цель изобретени - расширение кинематических возможностей. С этой целью упор 1 установлен в корпусе 3 на направл ющих 16, параллельных оси винта. Гайка установлена в кронштейне 13 и жестко св зана с муфтой 6, взаимодействующей со втулкой 4. На втулке 4 имеетс выступ 5. При вращении винта гайка совместно с муфтой 6, втулкой 4 и исполнительным органом 11 перемещаетс вдоль его оси. В крайних положени х исполнительного органа 11 болт 17 взаимодействует с упором 1, который преп тствует вращению втулки 4 и винта, так как выступ 5 наталкиваетс на упор 1. Перемеща корпус 3 по направл ющим 16, производ т регулировку величины хода исполнительного органа 11. 3 ил.The invention relates to mechanical engineering and can be used in drive feeds of metal-cutting machines with mechanisms of the screw-nut type. The purpose of the invention is the expansion of kinematic possibilities. For this purpose, the stop 1 is mounted in the housing 3 on the guides 16 parallel to the axis of the screw. The nut is installed in the bracket 13 and is rigidly connected to the coupling 6, which interacts with the sleeve 4. On the sleeve 4 there is a protrusion 5. When the screw rotates, the nut together with the coupling 6, sleeve 4 and the actuator 11 moves along its axis. In the extreme positions of the actuator 11, the bolt 17 interacts with the stop 1, which prevents rotation of the sleeve 4 and the screw, since the protrusion 5 pushes against the stop 1. By moving the body 3 along the guides 16, the stroke of the executive body 11 is adjusted. silt

Description

PiL2.2PiL2.2

II

13 513 5

Claims

Claim

Automatic limiter of the stroke of the executive body, containing a helical gear, two cam clutches.

5 .

mounted on both sides of the screw drive nut on its screw with the possibility of joint rotation with it, two bushings interacting with respective cam couplings and having each 5 protrusion on the outer surface, and stops made each in the form of a housing and a different lever mounted therein, the larger arm of which is designed to interact with the protrusion of the corresponding A-A sleeve, and the smaller - with the executive body, characterized in that, in order to expand the kinematic capabilities, it is equipped with a parallel axis of the guide screw, in which the stop housings are installed with the possibility of movement and fixation, and the couplings are rigidly connected to the screw drive nut and installed on its screw with the possibility of translational movement along its axis.