SU874303A2

SU874303A2 - Clamping device

Info

Publication number: SU874303A2
Application number: SU792737994A
Authority: SU
Inventors: Юрий Сергеевич Рудаков; Арсений Михайлович Осипов; Лев Семенович Рубинов
Original assignee: Московский Машиностроительный Дважды Ордена Ленина Завод "Знамя Труда"
Priority date: 1979-03-19
Filing date: 1979-03-19
Publication date: 1981-10-23

Description

(54) ЗАЖИМНОЕ УСТРОЙСТВО(54) CLAMPING DEVICE

1one

Изобретение.относитс к станкостроению .The invention relates to machine tool construction.

По основному авт, св. В 72272В известно зажимное устройство, в корпусе которого размещены зажимные элементы , перемещаемые-посредством винта , которые размещены на щеках П образной скобы 1.On the main auth, sv. In 72272B it is known a clamping device, in the case of which clamping elements are placed, moved by means of a screw, which are placed on the cheeks of the U-shaped bracket 1.

Недостатком этого устройства вл етс низка - точность центрировани . A disadvantage of this device is its low centering accuracy.

Цель изобретени - повьашение точ-ности центрировани .The purpose of the invention is to improve the accuracy of centering.

Указанна цель достигаетс чем, что устройство снабжено опорными планками, закрепленными накорпусе с наружной стороны ползунов и цангами с эажимньши гайками, одна из которых размещена между зажимным элементом и винтом, а друга - между .скобой и. винтом.This goal is achieved by the fact that the device is equipped with supporting straps, fixed on the body from the outside of the sliders and collets with nuts, one of which is placed between the clamping element and the screw, and the other between and. screw.

: При этом, с целью ограничени зажимного усили , оно снабжено трещоткой , установленной на свободаом конце зажимного винта.: At the same time, in order to limit the clamping force, it is provided with a ratchet mounted on the free end of the clamping screw.

.На фиг. 1 схематично изображено предлагаемое устройство, разрез на фиг. 2 - то же. вид сверху с часгичными разрезами на фиг, 3 - сечеийе . на фиг . 2..In FIG. 1 schematically shows the proposed device, the section in FIG. 2 - the same. top view with frequency sections in fig. 3 - section. in fig. 2

Зажимное устройство состоит из KOI пуса 1, ползунов 2 и 3, соответственно закрепленных на зажимных элемен- . тах (призмах) 4 и 5, установленных с возможностью перемещени вдоль . продольной оси П - образной ведущей скобы 6, на концах которой закреплен ползун 2, а ползун 3 размещен в противоположной части .ведущей скобы 6, The clamping device consists of a KOI trigger 1, sliders 2 and 3, respectively, attached to the clamping elements. max (prisms) 4 and 5, installed with the possibility of moving along. the longitudinal axis P - shaped leading bracket 6, at the ends of which the slider 2 is fixed, and the slider 3 is placed in the opposite part of the driving bracket 6,

10 зажимного винта 7 с правой и левой резьбой, соединенного с ползуном 3 и ведущей скобой 6, упора 8, закрепленных на корпусе 1 снаружи ползунов 2 и 3 опорных планок 9 и 10, цанг 11 и 5 12 с лепестками, зажимных гаек 13 и 14, шариков 15 и сепаратов 16 и 17, соедин ющих шарики между собой.10 clamping screw 7 with right and left threads connected to slide 3 and leading bracket 6, stop 8 fixed on housing 1 outside slide 2 and 3 of support bars 9 and 10, collets 11 and 5 with petals, clamp nuts 13 and 14 balls 15 and separators 16 and 17 connecting the balls to each other.

В ведущей скобе 6 и ползуне 3 сооско выполнены отверсти 18 и 19, в In the leading bracket 6 and the slider 3 coaxially made holes 18 and 19,

Claims

20, which are mounted to the collets 11 and 12 and the clamping nuts 13 and 14 located on the outside of the collets. In the sliders 2 and 3 and the support bars, guides are mounted in the collets 11 and 12, on the inner surface of the petals of which there is a thread that is engaged clamp screw 7. Balls 15 with separators 16 and 17 are placed 30 between sliders 2 and 3 and bearing bars 9 and 10 in guide slots 20 and 21. A ratchet 22 is fixed to the free end of clamping screw 7. The clamping device operates as follows. When the ratchet 22 rotates, the clamping screw 7 rotates, braked from axial displacement by the stop 8. The action of the collet 11 and 12, the petals of which are pressed along the thread to the clamping screw 7 by means of the clamping nuts 13 and 14, the latter slide the slides 2 and 3 with the prisms attached to them 4 and 5, the centerpiece of the part 23. In this case, the slashes 2 and 3 move on the balls 1 located in the guide slots 20 and 21 between the sliders 9 and 10. When the ratchet 22 rotates in the opposite direction, the part 23 is released. In the proposed device, due to the use of grips with clamping nuts for the transfer from the clamping screw to the slide and the drive bracket, the backlash in threaded joints is eliminated. At the same time, the use of the ratchet provides for the limitation of the force for clamping the part while centering, in consequence of which the deforming of the clamping screw and the centered part is eliminated. In addition, placed on the balls, pressed by the support bars during their installation, eliminates the backlash of the sliders. Claim 1, Clamping device according to ed. No. 722728, characterized in that in order to increase the centering accuracy, the device is equipped with support bars fixed on the housing from the outside of the sliders and collet mI with clamping nuts, one of which is placed between the clamping element and the screw, and the other between the bracket and screw.

2. The device according to claim 1, characterized in that, in order to limit the clamping force, it is provided with a ratchet mounted on the free end of the clamping screw. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 722728, cl. B 23 Q 3/06, 1978. g If n z

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