DE1908870U - COUNTERWEIGHT BAR FEEDER. - Google Patents

Description

-563- tiemsche id-Lennep,

Albert Schweitzer Str., 5

Hemscheid-Lennep ₉ the 3O ₀ Oct. 19 64

GEGSNGE TIG HT S-S T ANGSWVQ RS C HUB.

Counterweights bar front strokes are used in tool machines that Process general material, especially on 'ievo lver lathes and Einsp inde 1 — OrehautoEiat en. They are there in particular Used to advance lighter bars of material. Principle 11 the horizontally guided I <ateri al rod after opening r * er collet by a counterweight in an essentially evenly accelerated movement offset, where the friction in the fire cartridge, as well as in the guide tube or in the guide bearing is overcome.

This friction is approximately proportional to the learning of the weight of the material bar, that is, the lower the weight of the bar-hest piece, the lower it is. In addition, the lighter it becomes ^; le st piece of the material rod is more accelerated by the counterweight than the initially available full length of the material rod. The result is that initially the full length of the material rod is gently advanced against the stop of the machine tool, and that with decreasing weight or decreasing length of the water rod, the advance ns it ever higher Speed is where it gets harder when the material hits the stop. Ties also cause the remainder of the rod, which is becoming lighter and lighter, to spring back, ie unnecessarily large amounts of tape are admitted if one wants to adhere to the usual length tolerances on the back pieces.

*) The disadvantages shown arise in particular on material rods of greater weight, so that the counterweight rod feeders have so far only been able to be used for lighter work. z. B. over Orehnagnete with downstream subset Zung _gear? can not speed over a certain speed, the I- aterial.

'Hese solution has the disadvantage of a significantly larger one Effort compared to the counterweight rod front hub, as well

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Claims (1)

aside from that the susceptibility to faults or repairs is greater and the maximum permissible switching frequency of the "Qrehmagne te s" can be with shorter Piece times appear disruptive. 'lier the innovation described below involving a substantial technical Fortsehritt _s because Ruée ^ e acceleration or feed forces the length and the weight of? aterial rod automatically adjusted to earth. Theoretically, this “fitting in” can be drawn up in any number of stages, practical requirements two to four stages are sufficient Fig.! shows a counterweight bar feed with two, Fig. 2 one with four adjustment levels. In both figures, the following designations apply: 1 is the material to be advanced - rod 2 is the guide tube or a guide bearing (2a is a rod for guiding the filling bearing) ; 3 is a feed pipe or a Vor pushes, its length z. ^ü >. the length is the Terkzeugmaschinen-spindle bore adapted;! 4 is a traction cable, that the feeding force by the guide tube 3 to the pulley 5 iiberträgtj6 is "skins, the thrust of the ^v or as" a torque from the large pulley 5 to the small pulley 7 transmits; 8 is the pull rope that transfers the feed force from the assembled counterweight 9 to the small pulley 7. Up to this point the description corresponds to the previously known Executions jdie by a constant, albeit from individual slices Compatible counterweights are marked. The measure of the innovation is the counterweight 9 from individual disks different diameters (9 "1 to 9" 4) composed of some of them by corresponding stops (10 < > .1. up to 10.3) are automatically lifted off as the length of the material bar becomes smaller. In the execution example 1, these stops have the shape of an ear and are designed in such a way that the individual counterweights are lifted off without clogging 9 from the support body H takes place. Claim to protection Counterweight rod feed, characterized in that the Counterweight composed of discs of different diameters is caused by stops as the rod length becomes shorter be lifted from their supporting body or the basic weight (ll ^.