SU770746A1

SU770746A1 - Apparatus for feeding and clamping workpiecies

Info

Publication number: SU770746A1
Application number: SU792711055A
Authority: SU
Inventors: Сергей Вениаминович Кузнецов
Original assignee: Пермский Машиностроительный Завод Им. Октябрьской Революции
Priority date: 1979-01-09
Filing date: 1979-01-09
Publication date: 1980-10-15

Description

1one

Изобретение относитс к области станкостроени , а именно к загрузочным устройствам дл станков, и предназначено дл подачи и зажима заготовок типа колец, шайб с базированием их по оси симметрии.The invention relates to the field of machine-tool construction, in particular, to loading devices for machine tools, and is intended for feeding and clamping blanks such as rings, washers and basing them along the axis of symmetry.

Известны устройства дл подачи и зажима заготовок, содержаш,ие корпус, механизм питани , выполненный в виде шибера, зажимной механизм с двум подпружиненными губками, св занными рычагом с приводом 1.Devices for feeding and clamping blanks are known, comprising a housing, a feeding mechanism made in the form of a gate, a clamping mechanism with two spring-loaded jaws connected by a lever with an actuator 1.

Недостатком известного устройства вл етс то, что положение цилиндра зажатой заготовки находитс в зависимости от диаметра последней и может смещатьс в ту или другую сторону в вертикальном направлении .A disadvantage of the known device is that the position of the cylinder of the clamped billet is dependent on the diameter of the latter and can be displaced in one direction or another in the vertical direction.

Цель изобретени - повышение точности базировани и обеспечение надежности зажима заготовки. .The purpose of the invention is to improve the accuracy of the base and ensure the reliability of the workpiece clamping. .

Это достигаетс тем, что шибер снабжен шарнирно закрепленной на нем планкой дл прижима заготовки к базовой поверхности корпуса, а рычаг зажимного механизма св зан с приводом ползуном, при этом шибер и ползун расположены по обе стороны корпуса.This is achieved by the fact that the gate is provided with a bar hinged on it to hold the workpiece against the base surface of the housing, and the clamping lever is connected with the drive by a slide, with the slide and slide being located on both sides of the housing.

На фиг. 1 изображен общий вид предлагаемого устройства; на фиг. 2 - то же, вид сзади; на фиг. 3 - разрез А-А на фиг. 1; на фиг. 4 - разрез Б-Б на фиг. 2. Устройство состоит из корпуса 1, на передней части которого расположены зажимные губки 2 и 3 с возможностью перемещени в направл ющих колодках 4 и 5 и имеющие призматические вырезы дл захвата заготовок и скосы 6 дл их направлени . Сверху корпуса закреплена пластина 7, в которой выполнен канал 8 дл подвода за10 готовок, а над ним размещен отсекатель 9. Под пластиной 7 закреплена пластина 10. Обращенные друг к другу кромки этих пластин образуют паз дл заготовки. В этом пазу с зазором расположена пластинка 11,FIG. 1 shows a general view of the proposed device; in fig. 2 - the same, rear view; in fig. 3 shows section A-A in FIG. one; in fig. 4 shows a section BB in FIG. 2. The device consists of a housing 1, on the front part of which there are clamping jaws 2 and 3 with the possibility of movement in guide pads 4 and 5 and having prismatic notches to grip the blanks and bevels 6 to direct them. A plate 7 is fixed on top of the casing, in which a channel 8 is made for supplying 10 cookings, and a cutter 9 is placed above it. A plate 10 is fixed under the plate 7. The edges of these plates facing each other form a groove for the workpiece. In this groove with a gap is a plate 11,

15 шарнирно закрепленна на шибере 12, размещенном в направл ющих 13 и 14, посредством винта 15. В корпусе 1 помещен подпружиненный шарик 16, взаимодействующий с пластинкой 11. Шибер 12 с помощью винта 17 и планки 18 св зан с15 is hinged on the gate 12 placed in the guides 13 and 14 by means of a screw 15. In the case 1 a spring-loaded ball 16 is placed, interacting with the plate 11. The gate 12 is connected with a screw 17 and a bar 18

Claims

20 by a pneumatic cylinder 19 and carries a screw 20 for driving the shut-off device 9. On the rear side of the housing there is a groove in which a slider 21 is placed, made of two parts connected by a spring 22. The slider 21 and the jaws 2 and 3 are interconnected by two levers 23 and four stones 24, which sit on the axes x 25. The sponges, moreover, are interconnected by a spring 26. A slider 21 by a screw 27 is connected to a pneumatic cylinder 19. The device operates as follows. From the bunker into the channel 8, blanks are fed, which with the help of the cutter 9 are fed one by one into the horizontal groove. During the passage of the pneumatic cylinder 19 to the left, the gate 12 and the slider 21 move simultaneously with it. At the beginning of the stroke, the spring-loaded ball 16 pushes the plate 11 from the body so that there is a sufficient gap between the body and the plate to move the workpiece. During the course of the movement to the left, the center of the screw 15 moves to the left of the ball. At the same time, the plate 11 rotates at the end of the screw and its end presses the workpiece against the base surface 28 of the housing 1. In this form, the workpiece enters the bevels of the jaws 2 and 3, expands them and pushes the previously prepared workpiece into the tray 29. During the return stroke of the pneumatic cylinder the slide valve. 12 with the plate 11 and the slider 21 move to its original position. When this occurs, the spring 22 is stretched, the force from which is transmitted through the levers 23 to the clamping jaws 2 and 3. The workpiece is clamped and simultaneously centered. After processing the workpiece, the cycle is repeated. Claim 1. Device for supplying and clamping blanks, comprising a housing, a feeding mechanism, made in the form of a shcheber, a clamping mechanism with two spring-loaded jaws, a lever and a drive, characterized in that, in order to improve the accuracy of the base and ensure the reliability of the clamping of the workpiece, the gate it is provided with a bar hinged on it to hold the blanks against the base surface of the housing, and the clamping lever is connected to the drive by means of a slide.

2. A device according to claim 1, characterized in that the gate and slider are located on both sides of the housing. Sources of information taken into account in the examination 1. A. N. Malov. Loading devices for machine tools, “Mashinostroenie, 1965, C; 366, f. 226.

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