SU933417A1

SU933417A1 - Plate rotation mechanism

Info

Publication number: SU933417A1
Application number: SU802987023A
Authority: SU
Inventors: Борис Николаевич Коваленко
Original assignee: Предприятие П/Я А-7799
Priority date: 1980-09-26
Filing date: 1980-09-26
Publication date: 1982-06-07

Description

Изобретение относится к области машиностроения, а именно к металлорежущим станкам, и может быть использовано в звене передачи движения от винтовой пары к ведомому элементу, например в механизмах поворота бабки изделия внутри- ³шлифовальных станков.The invention relates to the field of mechanical engineering, namely to metal-cutting machines, and can be used in a link for transmitting movement from a screw pair to a driven element, for example, in mechanisms for turning the headstock of an inside ³ grinding machine.

Известен механизм, содержащий при- . вод с закрепленным на станине редуктором, выходной вал которого соединей через ' вращающийся винт с гайкой, связанной посредством пальца с плйтой fl j .Known mechanism containing pri-. water with a gearbox fixed to the bed, the output shaft of which is connected via a rotating screw with a nut connected by means of a finger to the plate fl j.

Недостатком известного механизма является низкая надежность его в работе. ₁₅ A disadvantage of the known mechanism is its low reliability. _fifteen

Цель изобретения - повышение надежности механизма в работе.The purpose of the invention is to increase the reliability of the mechanism in operation.

Для этого в предлагаемом механизме выходной вал редуктора выполнен в виде винта, а гайка выполнена цилиндрической _юи установлена внутри пальца с возможностью поворота вокруг оси, перпендикулярной к осям винта и пальца, причем палец установлен в отверстии плиты с возможностью поворота вокруг своей оси и вертикального перемещения.For this, the proposed mechanism of the output shaft of the gearbox is designed as a screw and the nut is cylindrical _th and mounted within a finger pivotable about an axis perpendicular to the axes of the screw and the finger, wherein the finger is mounted in an aperture plate rotatable about its axis and vertical movement .

На¹ фиг. 1 изображен предлагаемый механизм, план; на фиг. 2 - разрез А-А на фиг. 1.In FIG ^1. 1 shows the proposed mechanism, plan; in FIG. 2 is a section AA in FIG. 1.

Кронштейн 1 жестко прикреплен к станине 2. На кронштейне 1 установлен редуктВэр 3 с прикрепленным к нему винтами фланцем 4. В кронштейн 1 запрессована ось 5. Фланец 4 вместе с редуктором 3 может поворачиваться вокруг оси 5.The bracket 1 is rigidly attached to the bed 2. On the bracket 1, the gearbox 3 is mounted with the flange 4 attached to it with screws. The axis 5 is pressed into the bracket 1. The flange 4 together with the gearbox 3 can rotate around axis 5.

Редуктор 3 имеет удлиненный ведущий вал 6, выполненный в виде винта. На редукторе 3 закреплен электродвигатель 7 и маховичок 8. Вдоль винта 6 перемещается гайка 9, которая помещена в цилиндрическую проточку пальца 10. Гайка 9 выполнена в форме цилиндра и имеет возможность поворачиваться внутри проточки пальца 10 только вокруг оси, перпендикулярной к оси винта 6 и к оси пальца 1О. Палеи 10 установлен свободно в поворотной плите 11, несущей, например, бабку изделия.The gearbox 3 has an elongated drive shaft 6, made in the form of a screw. An electric motor 7 and a flywheel are fixed on the reducer 3. A nut 9 is moved along the screw 6, which is placed in the cylindrical groove of the finger 10. The nut 9 is made in the shape of a cylinder and has the ability to rotate inside the groove of the finger 10 only around an axis perpendicular to the axis of the screw 6 and axis of the finger 1O. Paley 10 is mounted loosely in the rotary plate 11, bearing, for example, the headstock of the product.

Максимальный угол поворота плиты d. ограничивается, например, путевыми выключателями. Так как угол поворота cL^ винта 6 зависит от угла поворота плиты oL , то поворот винта 6 и редуктора 3 5 также ограничен. Зазор сЛ выполнен так, что при повороте винта 6 (с редуктором) на максимальный угол (А^не происходит заклинивания механизма.The maximum angle of rotation of the plate d. limited, for example, by limit switches. Since the angle of rotation cL ^ of the screw 6 depends on the angle of rotation of the plate oL, the rotation of the screw 6 and gearbox 3 5 is also limited. The clearance SL is made so that when the screw 6 (with the gearbox) is rotated to the maximum angle (A ^, the mechanism does not jam).

Механизм работает следующим обра- ιο зо м.The mechanism operates as follows.

Винт 6, вращаясь от электродвигателя 7 или маховичка 8, перемещает гайку 9 и вместе с ней палец 10, сообщая усилие винта 6 на плиту 11, несущую 15 бабку изделия. Плита 11 поворачивается вокруг оси 12, сообщает пальцу 10 движение по дуге, а это вызывает поворот винта 6 с редуктором 3 на угол ctj относительно оси 5 и кронштейна 1. 20The screw 6, rotating from the electric motor 7 or the flywheel 8, moves the nut 9 and with it the finger 10, imparting the force of the screw 6 to the plate 11 carrying the headstock 15 of the product. The plate 11 is rotated around axis 12, informs finger 10 of the movement in an arc, and this causes the rotation of the screw 6 with the gear 3 by an angle ctj relative to the axis 5 and the bracket 1. 20

Таким образом, изобретение позволяет повысить надежность механизма в работе,Thus, the invention improves the reliability of the mechanism in operation,

Claims

(54) PLANE TURNING MECHANISM The invention relates to the field of machine building, namely, metal processing machines, and can be used in a motion transmission link from a screw pair to a driven member, for example, in the mechanisms of rotating the headstock of an internal grinding machine. A known mechanism comprising an actuator with a gear mounted on a frame, the output shaft of which is connected via a screw with a nut connected with a finger to the flj board. A disadvantage of the known mechanism is its low reliability. The chain of the invention is to increase the reliability of the mechanism in operation. To do this, in the proposed mechanism, the output shaft of the gearbox is made in the form of a screw, and the nut is cylindrical and mounted inside the finger so that it can rotate around an axis perpendicular to the axis of the screw and finger, and the finger is installed in the hole of the plate with the possibility of rotation around its axis and vertical movement. FIG. 1 depicts the proposed mechanism, plan; in fig. 2 shows section A-A in FIG. 1. Bracket 1 is rigidly attached to the frame

2. Bracket 1 is equipped with a reducer 3 with a flange fastened to it with screws 4. An axle 5 is pressed into bracket 1. Flange 4 together with gear 3 can be rotated around axis 5. Reducer 3 has an elongated drive shaft 6 made in the form of a screw . On the gearbox 3, the electric motor 7 and the handwheel 8 are fastened. A nut 9 moves along the screw 6, which is also in the cylindrical groove of the finger 1O. The nut 9 is made in the form of a cylinder and has the ability to rotate inside the groove of the finger 1O only around an axis perpendicular to the axis of the screw 6 and to the axis of the finger 1O. The finger 1O is installed freely in the swivel plate 11, laying, for example, the workhead. The maximum angle of rotation of the plate d is, for example, limited to limit switches. Since the angle of rotation d, screw 6 depends on the angle of rotation of plate A. the rotation of screw 6 and gearbox 3 is also limited. The clearance is made so that when turning the screw 6 (with the gearbox at the maximum angle d., The mechanism does not jam. The mechanism works as follows. Screw 6, rotating from the electric motor 7 or the handwheel 8, moves the nut 9 and with it the finger U, together with effort the screw 6 on the plate C, carrying the workhead of the product. The plate 11 rotates all the axis 12, informs the finger 10 to move along the arc, and this causes the screw 6 to turn from the gearbox 3 through the angle d- relative to the axis 5 and the bracket 1. Thus, the invention allows to increase the reliability of the mechanism The invention The plate rotation mechanism comprising a drive with a gearbox mounted on the frame, the output shaft of which is connected through a rotating screw with a nut connected to the plate with a finger, characterized in that, in order to increase its reliability in operation, the output ratio of the gearbox is screw, and the nut is cylindrical and mounted inside a finger, which can be rotated around an axis perpendicular to the axis of the screw and a palp, and the finger is mounted to the hole of the plate, which can be rotated around its axis and vertical movement. Sources of information taken into account at export 1. Patent of the GDR No. 102943 Cl. 67a. 32/02, 1974.