SU1004151A1

SU1004151A1 - Mechanical press

Info

Publication number: SU1004151A1
Application number: SU792732440A
Authority: SU
Inventors: Роман Михайлович Аденин
Original assignee: Предприятие П/Я А-7555
Priority date: 1979-03-05
Filing date: 1979-03-05
Publication date: 1983-03-15

Description

(54) МЕХАНИЧЕСКИЙ ПРЕСС(54) MECHANICAL PRESS

1one

Изобретение относитс к машиностроению , а именно к кузнечно-.прессовому оборудованию ,iThe invention relates to mechanical engineering, namely to press-forging equipment, i

Известен механический пресс, содержащий смонтированный в направл ющих станины ползун, приводной кривощипный вал, мотылева щейка которого соединена с щатуном , щарнирно св занным с ползуном и механизм включени 1.A mechanical press is known which comprises a slider mounted in the bed guides, a drive-type crankshaft shaft, the crank shaft of which is connected to the tongue, which is hinged to the slider and the switching mechanism 1.

Недостатками известного устройства вл ютс сложность и неудобство обслуживани .The disadvantages of the known device are the complexity and inconvenience of maintenance.

Цель изобретени - упрощение конструкции и повыщение удобства обслуживани .The purpose of the invention is to simplify the design and increase serviceability.

Поставленна цель достигаетс тем, что в механическом прессе, содержащем смонтированный в направл ющих станины ползун , приводной кривощипный вал, мотылева щейка которого соединена с щатуном, щарнирно св занным с ползуном, и механизм включени , последний выполнен в виде эксцентричной втулки, установленной в отверстии щатуна и соединенной отверстием с мотылевой щейкой кривощипного вала, подвижного упора, подпружиненного фиксатора , ролика и механизма нагружени щатуна , при этом фиксатор выполнен в виде двуплечего рычага с выступом, на эксцентричной втулке выполнен ссютветствующий, выступу паз, а на головке шатуна выполнен жесткий упор, причём подвижный упор смон5 тирован на станине, ролик - на одном из плеч фиксатора, а другое плечо последнего щарнирно св зано с щатуном.The goal is achieved by the fact that in a mechanical press containing a slider mounted in the bed guides, a drive crankshaft shaft, the crank pinch of which is connected to a tongue pivotally connected to the slider, and the switching mechanism is designed as an eccentric bushing installed in the slot of the tongue and connected by a hole with a crank shaft of a crankshaft shaft, a movable stop, a spring-loaded retainer, a roller and a load-off mechanism of the rocket, wherein the retainer is made in the form of a double-arm lever with a protrusion, and the eccentric bushing is made with a sling, a protrusion groove, and a hard stop is made on the head of the connecting rod, with the movable stop mounted on the frame, the roller on one of the retainer arms, and the other shoulder of the latter is hinged to the shaft.

На фиг. 1 - изображен пресс, общий вид; на фиг. 2 - вид А на фиг. 1 при ключенном движении ползуна; на фиг. 3 - то же, при включенном движении ползуна; на фиг. 4 - вид Б на фиг. 2.FIG. 1 shows a press, a general view; in fig. 2 is a view A of FIG. 1 when the slider moves; in fig. 3 - the same, when the motion of the slide is on; in fig. 4 is a view B in FIG. 2

В подщипниках станины 1 помещен кривощипный вал 2, на одном конце которого жестко насажен маховик 3, соединенный сIn the supports of the frame 1, a crankshaft shaft 2 is placed, at one end of which a flywheel 3 is rigidly mounted, connected to

Claims

15 by means of a gear consisting of a belt 4 and a pin 5 with an electric motor 6, and at the other end there is a moth jaw on which an eccentric sleeve 7 is mounted, the eccentricity of the opening of which distributes the crankshaft crank shaft 2 eccentricity the hole of the head of the rod 8, which with the help of a screw 9 with a nut 10 and a support consisting of an insert 11 and 12, is connected with a slide G6. The head of the connecting rod 8 is provided with a rigid support, with which it interacts with a movable support 14 connected to the frame 1. An connecting rod loading mechanism 8 is connected, for example, in the form of a spring 15 connected to the connecting rod head with the other end. frame I. In the side surface of the eccentric bushing 7, a groove is made that interacts with a retainer connected to the connecting rod 8 and consisting of a two-arm lever 16 with a protrusion, an axis 17, a spring 18 and a roller 19. To control the operation of the retainer, the movable stop 14 is provided with With a cusp. The press works as follows. From the electric motor 6 and the transmission consisting of the pulley 5 and the belt 4, the rotation is transmitted to the flywheel 3 and then to the crank shaft

2. The crank shaft 2 transmits the movement to the eccentric sleeve 7 with the help of a crank bite 7. At the same time, depending on the position of the movable stop 14, the connecting rod 8 and the slider 13 connected to it can be stationary, being in the upper position, or moving, making a working stroke. In order to carry out the working movement of the slide 13, the movable stop 14 is retracted upward, while the protrusion of the movable stop 14 releases the roller 19 of the lever 16. Under the action of the spring 18, the lever 16 rotates on the axis 17, its protrusion falls into the groove of the eccentric sleeve 7, rigidly connecting it with the connecting rod 8. As the crank shaft 2 rotates continuously, the crank neck, interacting with the eccentric sleeve 7, causes the connecting rod 8 to reciprocate. Through a screw 9 with a nut 10 and a support consisting of inserts 11 and 12, the movement is transmitted to the slide 13. When the connecting rod 8 moves, the spring 15 acts as a balancer, i.e. periodically expanding and contracting. To stop the movement of the slide, the movable stop 14 is moved downward as the slide 13 moves upwards. When the connecting rod head 8 approaches the upper dead center, the roller 19 of the lever 16, interacting with the protrusion of the movable stop 14, turns the lever 16 around the axis 17, withdrawing its protrusion from the groove of the eccentric sleeve 7, releasing it. Simultaneously, the hard stop on the rod 8, interacting with the movable stop 14, stops the movement of the rod 8, as the eccentric sleeve 7 starts to rotate freely in the hole of the rod of the rod 8. Spring 15 presses the rod 8 to the movable stop 14, preventing it from moving under the action of friction forces between the sleeve 7 and the head of the connecting rod. The use of the invention allows to reduce metal consumption, increase durability and improve press maintenance. Claims of the invention: A mechanical press comprising a slider mounted in the bed guides, a drive crank shaft, the moty-left neck of which is connected to a connecting rod pivotally connected to the slider, and an actuating mechanism, characterized in that, in order to simplify the design and improve serviceability, the switching mechanism is made in the form of an eccentric bushing installed in the hole of the connecting rod and connected by a hole with a crank neck of a crank shaft, a movable stop, a spring-loaded retainer, a roller and a loading mechanism Yeni Rod, while the retainer is made in the form of a two-arm lever with a protrusion, a groove corresponding to the protrusion is made on the eccentric bushing, and a rigid stop is made on the rod head, the movable stop is mounted on the frame, the roller is on one of the retainer arms, and the other shoulder is the last connected to the connecting rod. Sources of information taken into account during the examination 1. Linz V. P., Maksimov L. Yu. Forge-and-press equipment and its adjustment. M., “Higher School, 1975, p. 98, fig. 79.

15

P

FIG. 2

Y / {

15

eleven

Rig.Z

MS

No

eight