SU846298A1

SU846298A1 - Crank press

Info

Publication number: SU846298A1
Application number: SU792844613A
Authority: SU
Inventors: Борис Алексеевич Степанов; Олег Александрович Ганаго; Вадим Николаевич Субич; Анатолий Васильевич Сафонов; Юрий Николаевич Сергеев; Владимир Анатольевич Волов
Priority date: 1979-11-30
Filing date: 1979-11-30
Publication date: 1981-07-15

Description

II

Изобретение относитс к машиностроению , а именно к конструкци м прессов.The invention relates to mechanical engineering, namely to press structures.

Известен кривошипный пресс дл штамповки, содержащий смонтированный в направл ищих станины наружный ползун с размещенным в его полости внутренним ползуном с направл ющи- v ми, соединенным посредством кривошипно-шатунного механизма с приводом , а также гидроподушку со штоком. В устройстве привод ползунов осуществл етс от кривошипношатунных механизмов A crank press for stamping is known, which comprises an outer slider mounted in the bed guides with an inner slider in its cavity with guides v connected by means of a drive crank mechanism and a hydraulic cushion with a rod. The device drives the sliders from the crank mechanisms.

Недостаток этого устройства ограниченность технологических возможно cTeli.The disadvantage of this device is the technological limitations of cTeli.

Цель изобретени - расширение технологических возможностей за счет обеспечени возможности осадки заготовки с поперечным сдвигом.The purpose of the invention is the expansion of technological capabilities by providing the possibility of precipitation of the workpiece with a transverse shear.

Указанна цель достигаетс тем, что кривошипный пресс дл штамповки , содержащий смонтированный в направл ющих станины наружный ползун с размещенным в его полости внутренним ползуном с.нацравл и цими, соединенным посредством кривошипно-шатунного механизма с приводом а также гидрош.чдушку со штоком, снабжен про- межуточным ползуном-с направл ю1цими и упругими элементами, а таклсе закрепленньм на станине регулируемым упором наружного ползуна, при этом This goal is achieved by the fact that the crank press for punching, containing an outer slider mounted in the bed guides with an internal slider mounted in its cavity, is mounted on the center and tsimi, connected by means of a crank mechanism with a drive and also a hydraulic rotary valve with a rod, equipped - interstitial slider with directions and elastic elements, and tackles are fixed on the frame by adjustable support of the external slider, while

10 промежуточный ползун смонтирован между наружным и внутренним ползунами и подпружинен упругими элементами относительно последнего, а гидроподзшка смонтирована на станине с 10 an intermediate slider is mounted between the outer and inner sliders and is spring-loaded with elastic elements relative to the latter, and the hydropod head is mounted on the frame with

15 возможностью взаимодействи с промежуточным цолзуном.15 the possibility of interacting with an intermediate slide.

Направл ющие внутреннего и промежуточного ползунов выполнены наклой20 ными в противоположные стороны относительно оси пресса.The guides of the inner and intermediate sliders are inclined in opposite directions relative to the axis of the press.

Claims

The drawing shows the construction ;; qi press. The crank press contains frame 1, in which guides 7 an outer slider 3 is installed. Intermediate slider 4 is embedded inside the outer blade 3, and inside the latter an inner sub-wheel 5 connected to the connecting rod 6 connected by means of the crank shaft 7 not shown). The slider 5 has guide lines 8 inclined to the axis of the press at an angle d in the direction opposite to the rotation of the crank shaft 7. Intermediate slider 4 has guide lines 9 which are inclined to the axis of the press at the same angle d in the direction of rotation of the crank shaft 7. Between The inner 5 and intermediate 4 sliders, and also between the intermediate 4 and outer 3 sliders, elastic elements 10 and -11 are installed. An adjustable stop 12 and a hydraulic cushion 13 with a rod 14 are mounted on the bed 1, and the I3 stop and the rod 14 are made adjustable in length. The press works in the following way. In the initial position, the slider 5 occupies the uppermost position. The intermediate 4 and outer 3 sliders, due to the elastic elements 10 and il, occupy the lowest relative to the slider 5 position. The stop 13 and the rod 14 are adjusted to a specific length. When the press is turned on, the crank shaft 7 starts rotating (counterclockwise in the drawing), and the connecting rod 6, acting on the slide 5, begins to move it down along with the sliders 5 and 4 along the bed 2 guide 1. At the moment of contact of the upper die, mounted on the slider 5, with the workpiece, the outer slider 3 rests on the abutment 13, and the intermediate field zun 4 into the rod 14 of the cushion 13, in the result of which they stop. The slider 5 under the action of the connecting rod continues to move along the guides 8, interacting with the intermediate slider 4, upsetting the workpiece with a simultaneous shift of the tool to the left. During this period, shear stamping is carried out with the shift, since the upper stamp acts on the workpiece in both normal and tangential directions. The force of the cushion 13 is chosen 8 so that it exceeds the initial punching force. When the gap between the inner 5 and intermediate 4 sliders becomes zero, both sliders begin to move along the guides 9, overcoming the resistance of the cushion 13, V. .. this period, the slide 5, together with the upper stamp, moves down, moves to the right becomes coaxial with the lower die in the lowest position of the slider 5. With further rotation of the crank shaft 7, the slider returns to the extreme upper position and the sliders 3 and 4 under the influence of the elastic elements 10 and 11 also occupy the initial position. Claims 1. Crank press for punching, contents of an external slider mounted in the bed guides with an internal - slider placed in its cavity. A slider with claws, connected by means of a crank-driven mechanism with a drive, as well as a hydraulic cushion, with a rod, characterized in that, in order to expand technological capabilities by providing the possibility of upsetting the workpiece with a transverse shear, , as well as fixed on the frame adjustable stop of the outer slide, while the intermediate slide is mounted between the outer and inner slide - and spring-loaded elastic element relative to the latter, and the hydraulic cushion is mounted on a frame with the possibility of interaction with an intermediate slider.

2. Press according to claim I, characterized in that the guides of the inner and intermediate sliders are inclined in opposite directions relative to the axis of the press. Sources of information taken into account in the examination1. Encyclopedic reference book of mechanical engineering, T. 8, Mashinostroenie, 1948,. P. 590, FIG. 139.