SU1551463A1 - Die forging die set - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in forging and stamping production. The purpose of the invention is to expand the range of stamped products. In order to produce the same type of parts with different thickness of elements (for example, hubs, flanges), a container filled with electro or magnetic fluid is located under the passively movable forming element of the stamp (for example, ejector). The forming element rests on this fluid. The cavity contains elements capable of receiving an electrical signal from the sensor of the position of the forming element (via the control system). At a certain moment, upon receiving a signal, these elements (electrodes or electromagnets) create an electric or magnetic field in a liquid. The liquid instantly solidifies. The forming element (ejector) stops. The result is a predetermined size of the corresponding element of the product to be stamped, for example, the thickness of the hub and / or flange. 2 Il.

Description

The invention relates to the processing of metals by pressure and can be used in forging and stamping production in the manufacture of such forged strains that within the same batch of forgings of the same type they differ in sizes of identical elements, for example, parts with a hub and a flange at different thicknesses of the hubs (flanges).

The purpose of the invention is to expand the range of stamped products.

FIG. 1 shows a stamp, a longitudinal section; in fig. 2 is an electrical diagram of the control system.

A stamp for manufacturing parts d of different height of the hub and / or flange comprises an upper body 1 in which a punch 2 with an upper ejector 3 is placed. The lower die body 4 contains a lower die 5 which rests on the lower ejector guide 6. It is passive movable shaping element, since during punching its working end represents a part of the stamp engraving. The guide 6 rests on the base plate 8, in which the capacitance (cavity) 9 with an electro or magnet fluid is made

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10. Electrodes or electromagnets (elements 11 receiving an electrical signal) are placed in cavity 9, depending on which fluid is used: electrostatic or magnetically electrodes are intended to create an electric field in an electrically fluid, an electromagnet to create a magnetic field in a magnetic field. - in a viscous liquid.

A spring 13 is placed in the separator 12. The sensor 14 of the position (stroke) of the ejector 7 is located in the guide 6 and is connected to the control system (command device) 15, which includes the current in the elements 11 depending on the setting of the control system regulator and the position of the pusher. Between the matrices 5 and 2 placed the workpiece 16 (stamped forging 17).

In one of the possible options (Fig. 2), the ejector travel control system consists of a resistance sensor 18, a controller (resistance resistor) 19, an amplifier 20, a relay 21, connections 22, and contacts 23 of the relay. The stamp works as follows. The controller of the control system sets the value of the hub of the stamped forging. The signal from the regulator enters the control unit 15 and until the signal from the sensor 14 is recognized in the control unit 15, the elements 11 will be de-energized and the working fluid 10 will not prevent the ejector 7 from moving downwards when the workpiece 16 is deformed.

When the height of the forging hub 17 reaches the value set by the regulator, the signal from sensor 14 will be recognized in the command device 15, which will turn on the current in the circuit of elements 11 (electrodes or electromagnets) creating the appropriate field, electro-45 or a magnetic fluid will instantly harden hanging in the tank from level A to level B, and with further movement of the punch 2

The application of the invention in comparison with the known one makes it possible to eliminate the need for re-adjusting the stamp to produce parts of the same type with different hub and / or flange heights and thereby expand the range of products stamped in this stamp. Due to the fact that the container in the described stamp may not have an insert (unlike a hydraulic cylinder in a known stamp), the design of the stamp is simplified.

Claims (1)

Invention Formula A die forging stamp containing a punch, a matrix and a passively movable forming element, down will provide an emphasis when deforming50, such as a pusher, as well as forgings 17. Thus, the forging hub will be made of the height that is specified by the regulator. During the run of the press crawl up, the controller will turn off 55 i i the current in the circuit of the elements 11, the working fluid will take its original form and when removing the forging 17 and during the eject 10 15 20 45 14634 The pad 7 up will fill the cavity under the ejector 7. The control system (Fig. 2) works as follows. Depending on the position of the pusher, the voltage Ugbix is removed from the sensor 18. It is supplied to the regulator 19, which is ottarirovan so that after the ejector pushes some predetermined distance A at its output, the voltage amplified in the amplifier 20 becomes greater than or equal to the threshold voltage relay 21 trips. Relay 21 will close the contacts 23 of the device circuit, i.e. applies voltage to electrodes or electromagnets, creating an appropriate field, under the action of which an electro or magnetic fluid solidifies. When extrusion of the stamped forging 1 is ejected, the voltage at the output of the sensor 18 will decrease, respectively, the voltage at the output of the regulator 19 will decrease. UeblXi will become less than the threshold of the relay 21. The device will de-energize. The liquid will begin to move from the additional chamber into the cavity under the ejector. In the future, the cycle will be repeated. The application of the invention in comparison with the known one makes it possible to eliminate the need for re-adjusting the stamp to produce parts of the same type with different hub and / or flange heights and thereby expand the range of products stamped in this stamp. Due to the fact that the container in the described stamp may not have an insert (unlike a hydraulic cylinder in a known stamp), the design of the stamp is simplified. 25 thirty 35 40 Invention Formula A die forging stamp containing a punch, a matrix and a passively movable forming element, A container filled under it, filled with a working medium, with a support on which a shaping element is mounted, a stroke control system of the shaping element and a signal contact sensor connected to this capacitance, characterized in that, in order to expand the range of stamped products, it is equipped located next to the capacitance and connected to the control system by perceiving electric signal elements creating a magnetic or electric field in the working medium for its instantaneous solidification, As this medium Magneto or electrolysis fluid is used, and the signal contact sensor is mounted for contact with a passively movable forming element to limit its movement. 9 To controller  oh oh W