DE1998107U - MACHINE TOOL FOR PLASTIC FORMING - Google Patents

Description

, ^<; p _ATENTAN w _AL t R A. 105 OS 8-23.2. S8 't

, ALBERT SCHÜRHOFF, “. kcmm · ™haben. «,» eh 22.Sebr.la68

ti BOCHUM TELEPHONE: 415 95

AM WALDSCHLÖSSCHEN 11A »OSTSCHECtXONTO: DORTMUND 745O7

BANK DETAILS: ΑΚίΐβ ϊ 68 ~ VQ- - \ COMMERZEANK BANKVEREIN A.C. BOCHUM

Machine tool for plastic F

The ^, xx 'connection refers to a machine tool for plasti mechanical shaping by hammering, forging, weaving or the like three-dimensional shaping takes place by means of double-sided rocking levers, which carry the tools on their short levers for exercising the working hood and are driven toggles on their length.

• For the plastic Po ^rm S ^e bun _t: it is necessary in particular to feed elongated four-piece pieces such as rods, ears, etc. in a rotating open to the machine tool; a cccially displaceable support in a machine bed, in which a rotatable hollow spindle with a chuck is mounted. Lie workpieces are inserted into the cabbage spindle from behind, clamped, turned, pushed forward, withdrawn, relaxed and un <? Entnoiiunen »Such rotating feed devices are extremely complex and have to be connected to the actual deformation machine. Darts. In addition, the rotating insertion process often takes longer than the actual piastic deformation. In the case of pipes whose o-weight still requires manual feeding. manual feed results in a higher output than machine feed

Infeed reached, j ^ s are also workpiece bars, their length
as well as flexibility that does not allow turning such a thin
Have wall thickness that they can no longer be braced.

It is also known to feed the bar material through parabolic inclined rollers. This type of feed is there
but narrowly limited because between the Vsferkstüok and 4es treilses = _ψ the roles there is only line contact »||

In all known feed devices, it is not possible to | Stirrup-like or U-shaped pipes closed by machine | lead whose sneezes are to be reduced. f

The object of the invention is to provide a machine tool for plastic. .Ponögsbung to design so that it simultaneously takes over the task of the previously upstream complex feeder: devices. Their essence is seen in particular in! dag di? double-laraigen 3ahwinghe "bel -nit iiiren Werks eugtrag-rn ^{are arranged rotating about {} a deformation axis.

The object of the invention is on the drawing by an execution; illustrated schematically, and s ^ ar shows

Fig. 1 the iiex & z eugm as chine according to the invention, partially

in longitudinal section and partly in longitudinal view; ^;

Αύ'ο. <l- ;. fc frontal view of ife _J. ^> _Ä zeu.gsiaoe ^ i_e ge ^ iäB the Aoo- l
in 7ordiht

jino p_astisciie iOrsgcburu by hammering, forging, pressing cd.dgl.
eriol ^ t by ocüwinghecel, aie on their short lever arms i zur
Λ-suoun ^ äer ^ rarbeitsnuce who «bear the utensils 2 * at iiiren lang
Ksoelarmen 3 get iie öe ^ wingiiecel 1 »J jiren drive and
scr. .-. Lu ^ en uz. their ochweEJiiaoLsc 4. ^ s _{let s} -t is oirJie the ^ riin

J r

that the double-armed rocker arms 1,2 and 4 with their tool carriers 2 are arranged to rotate around a deformation axis 5 »

iSs is also within the meaning of the invention that the Yerformmigswerkzeuge 2 at the short lever ends 1 around the deformation axis 5 rotating rocker arms 1,3,4 outside the machine housing

• asa ß are arranged freely accessible. For this purpose the

Ends of the short lever arms 1 out of the machine housing 6.

\ The. ; A fully accessible tool arrangement from three sides is for

j the plastic forming very * ^r orteilhaft.

Jis has been found to be advantageous because the double-armed Rocker arm 1,3,4 in the longitudinal direction parallel to the deformation axis 5 and placed on a side 7 of a coal shaft 8 are stored. The Eohlweiie S is used for the Mxtnafime of the Sehwttnkachsen 4 and thus the rocker arm 1 to 5 during their rotary movements about the deformation axis 5.

On the hollow shaft 8, a drive runs freely around the work it ε-hubfc the rocker arm 1,3 with Inren Verf orsunssweirkäeagBa i, generated. In the embodiment shown in the drawing, a driven eccentric bushing 9 or the like runs freely on the hollow shaft 8 . This eccentric bushing 9 is in a force-locking connection with the ends 10 of the long shafts 3 of the rocker arm for the purpose of breaking the working groove. The eccentric bushing 9 rotates on the hollow shaft 8 by a motor-driven pulley 11 or the like This ensures that the drives 11 and 12 for the rotation of the rocker arms 1, 3, 4 with their deformation tools 2 around the deformation axis 5 and for the generation

the working hood sxnd from each other. The subject of the invention is not left because these drives 11, 12 are mutually exclusive are coupled to one another so that they can be switched on or off. It is within the meaning of the invention to design the coupling of the drives 11, 12 so that the tools 2 work with any number of strokes ürLa independent därön ui € hollow shaft oxide uEffixii uic ouhwingiiebei 1 to 4 can rotate around the deformation axis 5 * Furthermore, it is' in the sense of the invention, the coupling between the drives 11, 12 to be designed in such a way that the rotary movements of the rocking levers 1, 3, 4 with their tools take place as a function of their Ηώ movements, in that, for example, a rotation takes place only when the deformation tools 2 move away from one another.

Claims (1)

~ ⁵ ~ PA 1.09 098 * 23.2.68 (' in. -ν »ii r \ Li Ω * ^tl " * Sweetheart claims 1. Machine tool for plastic shaping od by iiäanaem, forging, pressing, like _o aas doupelarmigen vibration fog carrying the tools at their short levers to carry out the Arbeitsnube and are driven by their long levers, characterized in that the double-äaß Schwii Ebel (1,3,4 ) with their .terkseugträgern or tools (2) are arranged to rotate around an axis (5). <; "Machine tool according to claim 1, characterized in that that the Yerformungswerkzeuge (2) on the short lever ends (1) the rocker arm rotatable about a deformation axis (5) (1,3,4) arranged freely accessible outside the machine housing (6) are. 3. machine tool according to one of the preceding Claims 1 and 2, characterized in that the do ^ pelarmigen Rocker arm (1,3 $ 4) in longitudinal direction parallel to the deformation axis (5) arranged and pivotable on the ünde (7) of a hollow shaft (8) are mounted, on which the working hub of the rocker arm (1.3> 4) generating drive (9, 11) rotates freely, 4ο machine tool according to claim 3, characterized ge ~ indicates that on the hollow shaft (8) a driven eccentric bushing (9) od, the like. Farei circulates, which for generating the working strokes with the ends (10) of the long lever arms (3) frictionally are connected, 5 ο machine tool according to one of the preceding Claims 1 to 4, characterized in that the drives (11) (12) for the rotation of the rocker arm (1 - 4) around the deformation axis (p) as well as being separate from one another and designed to be mutually switched on and off for the generation of the working hood. DEÄ AL3ERI SCHÜEHOFF