SU1255040A3 - Hydraulic press for the finishing blanking - Google Patents

Abstract

The hydraulic press, in particular for even-cutting, has two rams (3 and 4). The ram (3) connected to one part (5) of a two-piece tool is provided for performing a rapid advance for closing the tool. The ram (4) connected to the other part (6) of the tool performs the main working movement. Serving to drive the ram (3) is a hydraulic plunger drive with a cylinder (7) sitting in the ram (3) and displaceable on the plunger (8). In addition, the ram (3) is provided with a hydraulic plunger drive (11, 12) whose plunger (12) interacts with an ejector (14). The ram (4) is provided with a hydraulic drive (15, 16), accommodated inside the ram, for performing the main working movement. Furthermore, it has allocated to it a drive which has a cylinder (23), interacting with a plunger (20), and a plunger (24) which interacts with rings pressing against the border of the workpiece (25). Connected to the ram (3) is a locking device which locks it in its end position. The device consists of a ring (27), connected to the ram (3), and a ring (28) rotatably inserted in the base plate of the body (1), the two rings (27 and 28) being provided with interacting radial teeth (29). <IMAGE>

Description

The invention relates to equipment for metal forming and can be used for finishing cutting of parts from sheet material.

The purpose of the invention is to increase the energy intensity of the press and the speed of movement of its working parts.

FIG. 1 shows the load in the initial open position, longitudinal section; ya fig. 2 - the same, in the closed position of the working tools (punch and die); in fig. 3 - furthermore, in the position after the cutting; in fig. 4 - fixation unit in the open position, longitudinal section; in fig. 5 the same, in a closed position; in fig. b - section in fig. 5.

Press the soderment I frame with guides 2 movements of the sliders 3 and 4, equipped with individual movement drives. On the slider 3, the matrix 5 is installed, and: on the slider 4 - a punch 6 and a pressure ring 7. In the working window of the matrix 5 there is an ejector 8. The drive of the accelerator of the first movement of the slider 3 is made in the form of a hydrocyl clamp 9 and the plunger 0 fixed on the bed of the B with channel for the supply of fluid. In the slider 3 there is a drive for moving the ejector 8; made in the form of a stationary hydraulic cylinder 11 and a plunger 12 moving in it 12. The movement of the slide 4 is made in the form of a hydraulic cylinder 13 and a plunger 14 moving in it, with a spherical bearing surface B, ghunzhera 14 larger than the diameter of the plunger 10.

In addition, in the slider 4, the HYDRODIL1DZD15 is fixed, in which the plunger 16 moves, serving as a 1st to move the pin of the rat ring 7. On the end surface of the hydraulic cylinder 15 there is a spherical protrusion G, which is in contact with the spherical bearing surface B of the saddle 14, Slider 4 is fitted with a drive its movement to its original position, carried out in the form of hydrots1-shindra 17, mounted on the base 1, with pistons 18, each of which is connected to a slider 4 of the second 19,

The slider 3 is equipped with a fixing unit in the position of the closing of the matrix 5 and the clamping ring 7. This node with

holds a pair of rings 20 and 21 with alternating protrusions and depressions at one of the ends. The ring 20 is fixed on the slider 3, and the ring 21 is installed with the possibility of rotation on the frame 1, B the ring 21 is made a groove, which includes the tongue 22.

Hydraulic press works as follows.

Through channel B, a liquid is supplied to the cavity of the hydraulic cylinder 9, under the action of which the hydraulic cylinder 9 and the slider 3 are moved to the upper position and the matrix 5 is pressed against the material being processed. In the extreme upper position of the slider 3, the ring 21 by the control system (not shown) at the nominal pins 22 rotates to a position in which the protrusions of the ring 20 rest on its arms and the slider 3 is fixed in the upper position (Fig. 2).

Then, the control system provides fluid supply to the hydraulic cylinder 13, as a result of which the plunger 14, acting on the spherical surface of the hydraulic cylinder 15 on the spherical surface of the hydraulic cylinder 15, moves the sliders 4 downwards and ensures the incorporation of the near ring 7 into the material being processed (Fig. 3).

With further movement of the slider 4 down, the punch 6 is inserted into the process of the 1st material with a set speed of movement. Wherein

the movement of the punch 6, the part to be cut is influenced by the anti-polar forces of the punch 6 and the ejector 8, which is under the influence of the hydraulic cylinder 1I and the plunger 12.

After the punching process is completed, the control system ensures that the ring 21 is rotated to a position in which the protrusions of the ring 20 enter the depressions of the ring 21, release the slide 3 from fixing, Crawler 1-1s 3 and 4 and the matrix 5 mounted on them The inner ring 7 is set in motion in opposite directions.

directions x. The pressure of the liquid, the pollutant into the hydraulic cylinders 17, the return -in-set slider 4 to its original upper position, and the pressure of the liquid filed in HYDROTS1SHINDR 11 causes the plunger 12 and the ejector 8 to move and the cut part is removed from the working hole of the die 5.

. one

The relatively small diameter of the plunger 10 provides a quick supply of the slider 3 with the matrix 5 to the material being processed.

A hydraulic press can be controlled by a central control system that controls the solenoid valves, as well as by means of an electric pump.

tron sensors or computer control system.

The proposed press can be used not only for finishing, but also for multi-operational processes. Such an embodiment of the press allows to increase the power consumption and high speed.

1

Fng.2

-20

Editor M. Iedoluzhenko

Compiled by Y. Tseitlin

Tehred I.Popovich- CorrectorM. Pojo

Order 4730/59 Circulation 783 Subscription

VNLIPI USSR State Committee

Inventions n discoveries 113035, Moscow, Zh-35, Raushsk nab ,, D. 4/5

Production and printing company, Uzhgorod, st. Project, 4

cpus, 6

Claims (3)

1. A HYDRAULIC PRESS FOR CLEAR FELLING, containing a bed, two opposite sliders, a punch and a clamping ring mounted on one slide, a matrix mounted on the other, an ejector placed in the working window of the matrix, individual slide drive drives, each made in the form of a hydraulic cylinder with a plunger, a drive for moving the ejector, made in the form of a hydraulic cylinder with a plunger, a fixing unit for one of the sliders, distinguishing-. with the fact that, in order to increase the energy intensity and speed of movement of the working parts, the slider on which the punch is fixed is equipped with an additional hydraulic drive of the working movement, made in the form of a hydraulic cylinder and plunger, and the slider carrying the matrix is equipped with a hydraulic drive of rapid clamping rings and a matrix made in the form of a hydraulic cylinder and a plunger with a diameter smaller than the diameter of the plunger of the additional drive of the working movement, and a slider carrying the matrix is connected to the fixing unit. 2, Press pop. 1, characterized in that the clamping ring is connected to a plunger located in the hydraulic cylinder of the drive for moving the slider carrying the punch, and this hydraulic cylinder is mounted with the possibility of contacting its end surface with the end face of the plunger of the drive of the main working movement. 3. Press pop. ^ characterized in that the slider fixation unit is made in the form of a pair of rings with alternating protrusions and depressions at the ends facing one another, one of which is fixedly mounted on the slider, and the other is mounted on the bed with the possibility of rotation and interaction of its protrusions with the protrusions and hollows of another ring. oh OH sl o o1