SU931382A1

SU931382A1 - Rotation indexing apparatus

Info

Publication number: SU931382A1
Application number: SU802945631A
Authority: SU
Inventors: Олег Иванович Зудин; Игорь Евсеевич Гольдберг; Михаил Николаевич Онищенко; Николай Иванович Леусенко; Николай Иванович Тарасов
Priority date: 1980-06-20
Filing date: 1980-06-20
Publication date: 1982-05-30

Description

1one

Изобретение относитс к машиностроению и может быть использовано дл углового делени при станочных работах.The invention relates to mechanical engineering and can be used for angular division during machine tool work.

Известно поворотно-делительное устройство, содержащее поворотный диск, ведущую собачку, шарнирно установленную на оси, закрепленной на диске, рабоча поверхность которой взаимодействует, с одной из рабочих поверхностей зуба храпового колеса , фиксирующую собачку и привод поворота фиксирукмцей собачки LQ A rotary-dividing device is known, which contains a rotary disk, a leading dog hinged on an axis fixed to a disk, the working surface of which interacts with one of the working surfaces of the ratchet tooth, locking the dog and driving the turn by fixing the LQ pawl.

Недостатком данного устройства вл етс невысока его надежность, так как планшайба поворачиваетс за счет движени собачки, опирающейс 9 зуб. храпового колеса и может в результате инерционных сил двигатьс в сторону вращени , опережа собачку , а затем подталкиватьс далее ударами соб.ачки о зуб.The disadvantage of this device is its low reliability, since the faceplate is rotated due to the movement of the pawl, which is supported by the 9 tooth. of the ratchet wheel and, as a result of inertial forces, can move in the direction of rotation, ahead of the dog, and then pushed further by the dog's blows on the tooth.

Цель изобретени - повышение надежности paбotы за счет исключени The purpose of the invention is to increase the reliability of the work by eliminating

отрыва зуба храпового колеса от ведущей собачки оseparation of the tooth of the ratchet wheel from the leading dog about

Поставленна цель достигаетс тем, что устройство снабжено дополнительной подпружиненной ведущей собачкой, установленной на оси основной ведущей собачки с возможностью взаимодействи с противоположной рабочей поверхностью зуба храпового колеса и с фиксирующей собачкой-.The goal is achieved by the fact that the device is equipped with an additional spring-loaded leading pawl mounted on the axis of the main leading pawl with the possibility of interaction with the opposite working surface of the ratchet tooth and with the locking paw -.

На фиг. 1 показано поворотно-делительное устройство, сверху; на фиг. 2 вид по стрелке Л на фиг. 1.FIG. 1 shows a rotation-dividing device, from above; in fig. 2 is a view along arrow L in FIG. one.

Поворотно-делительное устройство состоит из корпуса 1 с закрепленной в нем осью 2, на которой установлена свободно планшайба 3, храповое колесо f с зубь ми 5.The turning-dividing device consists of a body 1 with an axis 2 fixed in it, on which a faceplate 3 is installed, a ratchet wheel f with teeth 5.

Claims

On axis 2, the output link 6 of the drive of the faceplate 3 is also freely mounted. On the output link 6, there is a serrated surface 7 with which the rod-rod 8 connected to the drive 9 is hooked. 39 On the output link 6, an axis 10 is fixed on which it is mounted. a leading pusher dog 11 and a leading dog-holding element 12, each of which, respectively, are straps 13 and H rigidly mounted on dogs and wound up against the stop 15u preloaded to the ratchet wheel of the faceplate 3 On the axis 16, fixed directly on the body 1, installed dog locking 17, which has an inclined surface 18 and is attached to the ratchet wheel t by a spring 19, which is attached to the stop 20. A stop pin 21 is fixed to the output link 6. A clamp 22 is located on the peripheral portion of the faceplate 3. The device operates as follows. The actuator 9, the rod rail 8, which is in engagement with the toothed surface 7 of the output link 6, is moved to the right (Fig. 1). At the same time, the output link 6 is rotated clockwise. The axis 10 fixed on the output link 6, together with the leading pusher dog 11 mounted on it, also rotates, while the leading dog pusher 11 is pressed to the ratchet 4 of the faceplate 3 by the spring 13 from the stop 15 (Fig. 2), departs from one tooth 5 and, slipping on the ratchet wheel, comes behind the other tooth 5 (faceplate with ratchet wheel k is fixed, as it is locked by retainer 22). At the same time, the lead pawl-holding element 12 moves with spring 1 with abutment 15 to the inclined surface 18 of locking dog 17, which is freely mounted on axis 16 located on housing 1, and spring 19 with abutment 20 The pawl-holding element 12 slides off the inclined surface 18 and slides over the ratchet wheel k to the next tooth 5. When the output link 6 is rotated, the stop pin 21, which is fixed at the end of the stroke, pushes the locking dog ku 17 from the ratchet wheel. Thus, when moving the shock of the rail 8 of the actuator 9 to the right, there is a 1DESERT of the leading pusher dog P 2 FROM one tooth 5 and moving after the other, moving the leading cusher retaining element 12 with an inclined surface 18 to the next tooth 5 and squeezing the stop pin 21 of the locking pawl 17 from the ratchet wheel of the faceplate 3. Then the latch 22 is released and the rod-rod 8 is driven by the actuator 9 to the left. With this, the leading pusher 11 pushes its working surface against the tooth 5 and begins to rotate the faceplate 3 on the axis 2 rigidly fixed in the housing 1. At the same time, the leading dog-holding element 12 with its working surface captures the tooth 5 by its opposite working surface the surface, which allows for turning the faceplate 3 to avoid the last separation from the leading pusher dog 11. i.e. The faceplate fixed by the tooth 5 of the ratchet wheel between the working surface of the leading pusher 11 and the working surface of the leading pawl 12 moves uniformly. The stop pin 21 moves away from the locking pawl 17, which is again pressed against the ratchet wheel by the spring 19, but already in the next section between the teeth 5, since during this time the previous tooth 5 has turned in joint movement with the driving pusher dog 11 at an adequate angle At the end of the rotation of the faceplate, the lead dog-holding element 12, with its bevel, hits the inclined surface 18 of the locking dog brake of the brake 17 and moves away from the ratchet wheel t, and the tooth 5 with the driving dog of the pusher 11 abuts against the surface of the locking dog-brake and 17, i.e., in hard stop. The washer 3 is stopped and clamped with a latch 22. The rotation from one fixed position to another is made. The number of fixed positions is determined by the number of teeth 5 on the ratchet wheel k face plate 3 (in our case there are four of them). The proposed drive rotary table design is highly reliable, since the presence of the retaining element allows the table to rotate evenly, without jerks and shocks, and the presence of a rigid brake allows the table to stop without deviations. The present invention can be used in machines and semiautomatic devices designed to assemble and fasten the cores of magnetic circuits. Claims The turning-dividing device contains a turning disk, a leading dog hinged on an axis fixed to a disk, the working surface of which interacts with one of the working surfaces of the ratchet tooth, locking the dog and driving the locking dog different from that. in order to increase the reliability of operation, the device is equipped with an additional spring-loaded driving dog mounted on the axis of the main driving dog with the ability to interact with the opposite Static preparation of the tooth surface of the ratchet wheel and a locking pawl. Sources of information taken into account during the examination 1. USSR author's certificate; t 61А931, cl. 23 Q 17/02, 1976.

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