DE1627484A1 - Forging machine with hydraulically lockable jaws - Google Patents

Description

DR. EULE DR. BERG DI ^; PL, .- ING,

PATENTANWÄLTE 8 MÜNCHEN 2. HILBLESTRASSE 2O

Dr. Owl dr Berg Dipi.-Ing. Stopf, gMOiiaien 2, Hilblestraget 10

Our characters ITl / lCl * 16758 date

Attorney's file Mr. 16 758

Oentral Biuro Köns1; rukz; GyJne

Pres i Miotow ' ^:
Warszawa / Eolen

SohmieaemasGhirLe with hydrauliBök setLlosbareii

The blessing of the invention is a © Sommiedepresse: doiu double-acting WaagereeJit-Limiedepresse ₉ whose clamping

109836/0212 ο

• ■ jaws are closed hydraulically ·

Previously known ■■ "forging press !! have mechanical, mostly Drive of the clamping slide controlled by toggle levers or curves * This type of drive has a rigid kinematic characteristic, i.e. neither the stroke length of the Clamping slide, still the closing time of the clamping jaws "_changed can be. Regardless of the compressive forces generated during its movement, the carriage must be up to one conditioned by the structure of its snematic arrangement Advance position. This forces the installation of an overload protection, which again eliminates the clamping rings the execution of a larger Umformarbeit is made impossible and also any adjustment of the visual force It is also excluded that such Eon- 'structures of flat die forging presses are known, in which both the clamps as well as the compression slide hjrdrauliseheh Have drive. Such solutions basically only represent a connection of a hydrauilsphen vertical with a horizontal press, with out of consideration on the need to switch the sledges in their dead centers, neither the speed nor the Labor productivity of the mechanically driven forging presses can be reached ^ '

The forging press according to the invention avoids such ACh M

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teiie ölbzüz their Konsti £ axfc * IBTI _f at ^ eJ-Ciier the Stauen- '-''.;;? meehanxsolien knüxleh üat uaa the ifeienuffibacken ^ -werfen "-Aaf this way © fc ^ EUEI and the dea · SlaBöiiirLe; jeaer öinei? ' meeHa ^ isc powered Selasiieidepresse "gieicfeKOBuneiij waliieaaÄ at the same 2si1; the 'advantage' ^v Aeee ^^ n ^ axilisoli _iMiyielaes:; for the "SclilieBfeeweguag äer- Klemmbacken- errfiöfet * Until Seib. holds the sesenwimdiglceit bucket SGiimiede press isi» attcn: wicirtä-gy because thereby the time of the contact is shortened and the stamp is again reduced with the heated pressure ^;

In comparison with the well-known forging presses, there are “2iaeIi- · positions Main part of the forging press loudly.

.. the Möglichksit deeply sucked j q "erge ± 'örmte Se mieäestüefcs her'ziAsteilen ^" _- - ^_:;. ■ ·'. '■ - -

. the possibility of open-die forging with ■; Single »" ■ or Bauerhat! Of the clamping slide Si / - "- ^:

the possibility to drive the Xlemmsehlittens "and with de, m Staiiohschlitten alleiii zvl:

- the ability to adjust the handle length of 4 as well as the matrices

safe hydraulic overload protection of the clamping system » . ■ -'.-. ;,;.: - ;; _...- :. "., ;; ;;.-'- ■ ..

1621484

The listed 'advantages allow a considerable Extension of the forming possibilities "-from" forging, press according to the invention compared to the possibilities that the previously known machines of this type Offer" -

The forging press forming the subject of the invention is explained below using one of the drawings attached ,. Schemati sch illustrated embodiment explained.

The drawing shows the machine during the working stroke after the clamping jaws 1 and 2 have been closed. The compression slide 3 driven by the crankshaft 4 is moving straight forward and the cylinder 5 housed in its rear part conveys the working medium through the check valve 6 into the clamping cylinder 7 ° When the pressure in this cylinder © ine reaches the preselected level, the Pressure switch S the passage from the cylinder 5 to the _{feed tank 9 S} in & © ai ti © liquid-under the pressure of compressed air is "The carriage 3 compresses the molding 10 clamped in the dies 1 and 2 and begins its decline, with a new amount of the fluid in the cylinder 5 γ sucks · the jaws are closed .while this time so long, coupled to the to the crankshaft 4

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y11 the reflux valve 12 opens * Immediately thereafter, the roller 13 slides: under the cam: the cam 14 and lifts the lever 15, after which the lever 16 with the jilepimbaGke 2 arranged therein is attached upward transition, the movement of the carriage 16 duröh a hydraulic BämEi he _o 17 ge. br seriously the resulting on se in! damper Druclc can-for driving the ejector 18 for ejecting :: the JOrmlings be utilized from the die "in the clamping carriage 16, a mechanical ejector 19 or a hydraulic ejector can also be installed »If the machine is working in the" single stroke "switch position _? Both slides, both the upsetting slide 3 and the clamping slide 16, remain in their starting positions after the crankshaft 4 has performed a yolle rotation and the crankshaft clutch has been switched off _β .

The distributor valve 20 is connected to the control of the clutch that when the clutch is switched off in the Maximum position of the clamping carriage 16, the compressed air from the Cylinder 21 escapes and the bolt 2: 2 actuated by spring 23 is pushed under gable 15 and thus in Sinking carriage 16 prevents »'

When the clutch is switched on again, rii 22 off, the carriage '"$ ■ begins its Ϋ

■ ■■■ IGB 836/02 12

16 ?? 484

the roller 15 rolls out / its position "button of the curve 14 and under the pressure of the liquid from the! Eank 9 stationary Klenmischlitten 16 falls until the dies are closed »while at the same time the cam drive 11 die Connection between the clamping cylinder 7 and the l'ank 9 locked under "yours." Pressure of the cylinder 5 are the dies clamped with greater force and the work cycle continues as described at the beginning.

By permanently blocking the supply of compressed air to the Cylinder and opening of the hydraulic tex divider valve the movements of the clamping carriage 16 can be switched off. - -

The degree of the open position of the clamping jaws can optionally to one of several available values "can be set by moving the seal 22 around the axis of the Cylinder 21 rotates while the curve 14- on the lever Adjusted accordingly.

The forging machine according to the invention can, as shown in the drawing, have a vertically or horizontally operating clamping slide ₀

TOS83S / Q212

The patent is subject to claims

Claims (1)

Patent claims s 1* . Sclmieaeiaaseliine with laydrauliscli eöhllessenden Kleiiim- • baefen, dadnroli gekeixazeicliEiet: that they with. eiiiei cylinder rdmiüg (5) ^^ rseüen ists seiche, © ineip. high. for the ikr & eitstafo des Klejamschlltteiis (16) imd the closing of the KlemmbsLOken by means of liquid * whereby the cylinder ^ Eollaen-Anoraiimig voa the stanchschlitteii {3) öo-yr the this carriage driving: Löaarbelwelle {4 mechanically driven 2p: Schffliedemkschine according to claim l_ ^ geke_nnaiei £ hnet through a lever (15) with a KurTenstüek. (l4)? s: that through a SQlIe (13) mounted on the upsetting slide (5) is raised is j where the urvenstüclc (14). along the lever ■ (.15) snid the holle (13) right to the direction of movement of the stanchion slide are adjustable ", And (9) to: Seiiaiedsmaschine according to claim 1 2 _s £ ejgennzeichnet a swischen a feed tank od'er actuating cylinder (7) angetirdne- " tes BurchfliißTöntil- (12), which by one with the. Crankshaft ^ (4) or 'coupled with the compression sleeve (3) Kurrentrieb (11} is controlled. ' - 8 _r 1 (527484 4. forging machine according to claim 1, 2 or 3, g by a pneumatically or hydraulically operated bolt (22), the one under the lever (15) or in a corresponding one Opening in the clamping slide (16) can be pushed around this slide in the open position of the clamping jaws to hold the appropriate position. ο forging machine according to one of claims 1 to 4 » characterized by built into the jaw holder hydraulic ejectors, which use the stored energy of a hydraulic damper (17), which in the outer Dead center brakes the clamping slide (16) » Patents considered:
USSR patent 118068,
DBP 892847 %> ■■