DE2042509C3 - Device for fastening upper sections to mounting rails. Aiun: Reinhardt Maschinenbau GmbH, 7032 Sindelfingen - Google Patents

Description

The invention relates to a device for fastening exchangeable, upper parts, in particular goat foot rails, round rails, pointed rails and the like, as well as upper tools or press rams on receiving rails and Obenvangen of swivel bending machines or on press beams of die brakes, the The receiving rail and the folding rail to be used are provided with interlocking grooves of complementary design.

Such a device is also available USA.-Patent 2 234 178. at the an der Oberwange a mounting rail is attached via screw bolts. the one below, pointing forward Has projection and an overlying groove which is completed by the one present at this point. front part of the upper cheek, being the actual folding rail, which is in the form of a goat's foot rail may have, complementary in the region of the groove and the projection of the receiving rail is designed and so can be plugged together with this. Obviously by tightening the There is a jamming of the screw bolt between the upper beam and the mounting rail, but only in the immediate area of the screw bolt can be effective due to increased friction. the Connection of the folding rail with the receiving rail is therefore "in this known Vorrichiung based on a clamping effect and suggests that due to the favorable ratio the clamping width to the total height of the rail does not work properly can be. Similar devices for sheet metal bending machines can still be found in the Swiss Pa publications 27 557 and 84 310 can be taken. with the first Swiss patent specification a clamping effect is exerted directly from the upper beam on the folding rail, while in the Swiss patent specification 84 310 although a mounting rail is attached to the upper beam by means of a screw connection. the folding rail, however only in a gap in the receiving rail. without any other attachment.

Such types of fastening of folding rails on swivel bending machines od. Dg !, are moreover no longer permissible according to more recent uniform regulations.

To attach the individual sections to the mounting rail of the Obcrwangc were previously next to the above-mentioned possibility of jamming the folding rail two more other types of fastening are possible, namely the direct screw connection, with the mounting rail with threaded holes and the individual pieces were provided with elongated holes. Tcil pieces had to be offset for different pressed workpieces or completely removed, it was always necessary to completely remove the screws, «eiche Tcil pieces and mounting rails connected. In dic- ■ 111 Case are still a large number of

yvindel holes in the mounting rail necessary, so that a force component in the vertical which leads to a cumbersome and time-consuming preparation of the exact drawing in of the section in positionally leads. Furthermore, it has been customary so far for the upper groove of the mounting rail to be developed the sections on the mounting rails thereby to further embodiments of the invention are fastening, that in the receiving rail a T-slot 5 subject to the Untcransprüche and provided in these was, within which corresponding lays.

T-nuts were inserted. In the following, the individual parts will be split up using the figures sat screws that are in the slot nuts and the mode of operation of the invention in detail could be screwed and the section explained in more detail. It shows

Hold the mounting rail. As a result, it was indeed m Fig. 1 an overall view of a swivel bending machine

possible, after loosening the screw, the individual sub-machine,

piece to move laterally (inside the groove in FIG. 2 an enlarged sectional view

the mounting rail), but nevertheless had to be in the machine with a special representation of the upper

in most cases the screws are completely strangled,

be removed if, for example, individual sections 15 F i g. 3 in an enlarged view of the invention

had to be exchanged for each other. A proper arrangement of the attachment of sections

Another possibility was, after loosening the on the upper beam rail according to section 3-3

Fastening screws all parts in the longitudinal direction in F i g. 4,

from the T-slot and remove the parts from the T-slot. 4 a top view from the front of different

In accordance with the new size, insert what 20 pieces. di; on an upper beam rail:

was also cumbersome and too long set-up times are

led. In Fin. 1, the upper beam of a Sehwenkbie-

The invention is based on the object of denoting a bending machine or bending machine with 6. The upper

preferably individual ones, in the manner of bending or deflecting troughs 6, can be raised and lowered and throw

Tcilslücke formed by edge rails 25 is usually form-fitting over its entire width with a

against acting force effects with a mounting rail or a receiving piece 7

Mounting rail in the upper beam of a swivel view (see Figs. 2 and 3). in which the individual

to connect the bending machine in such a way that any part that serves to bend the sheet metal

ges moving and adjusting the pieces to hold on piece, can be used. The

the width of the folding machine is possible. 30 section 8 or more besides this section 8

nevertheless a partial gap 8 'arranged against all stresses. 8 "can ncbcncinan-

sterile and stable seat is achieved. that in the receiving piece 7 in the corresponding

To solve this problem, the invention is based on the length of the workpiece 9. as in FIG. 4 shown. of the device mentioned at the outset as being attached. The number of the intended known, presupposed type and consists, according to the invention, of diaper holes 18 is preferably matched to the respective one in that between the length of the partial gap 8, as a result of a groove-lost length,
clamping groove acting as anchoring means In the exemplary embodiment in FIG. 3 is provided as projection units screw pins. Portion of a so-called high clamping beam rail shown in running threads on the sections that containing 4 ×> expires been published in an acute angle ending the threaded pins through the respective section below R & I '. Of course, it is possible to stretch it and also to support round mounting rails with its lower part against the correspondingly desired folds. rails. Pointed rails and other rails too

There is the advantage that. although they refer to \ erwendeu. The only thing that matters is the

the bending force exerted in the upper part of the body.

from the beginning of the folding process with the finished rail 7 of the upper beam 6. According to the invention, this

-i.ciiung proceeded in their direction from vertical to horizontal at mi that the upper beam 6 or a

changes, the sections in a solid form-locking with the upper cheek verbundciic recording chieiie; n

are held in engagement that yields to their upper part! is provided with a groove 11. Where-

Compared to any acting force, this necessity is unobjectionable over the whole

lent. One reaches a.if this way a '-ehr go ή "width of \ ulnah: iiescliienc 7 runs and is in this

Accurate, reproducible work, Nu can still do: an upward spitting 12

In the case of an initially easy solution, Jei screw oes filing 8 or tier 8. 8. 8 one-

Shafts a sliding rope Vj'-shift that stretches. The NuI Il opens down, and groove

Parts in the mounting rail of the upper beam as well as the projection are preferably rectangular ^ ¹ ! mig

reach. If the screw pin is finally even 5Γ. educated. In (Ic I bene der 1 ünterkaMe des \ oi-

what is turned out further, then it is possible to use the '.primus 12 de- Te: | stiukos this ^ unierhalh im

respective Tcüstück - this can also be two or corresponding \ distance to i'k 111 projection 12 v: l ·

open up more south-bound land - · go down; tine groove 13. in wvk-iie \ u! -I am now one

take and through another shaped or by corresponding projection 14 of the Sufruthme-

a section of different width to ersc ' ^fi <> rail 7 extends.

Zen. It is furthermore advantageous that this groove 13 also runs during insertion

a section in the receiving rail of the top and projection 14 over the entire width of the

cheek alone through (read tightening ·, 'des Sei, ·: i-.ibst ^; fte- Tciktück, · b / w. dei Aiifnalimeschieiie

or the Sfhrnubsliftc an automatic / internal 11 groove 13 open at the top! ίγ ·: 'the protrusion 14 in

and tightening the Te'.lslückes nnn-.lieh is. da; n ß _r also right ', bell-shaped, yield: Uitmii to un-

a further advantageous embodiment of the I '' ■ '1st stretch' ..

tion the level, r.cgen can be (let lower part dt.s In other words, the VeranK-nmg des

Srhr; nihstifics supported, is inclined to the vertical. Teiktückcs in de; Recording 7 of the O'v r-

cheek 6 can also be seen that way. that seen from the upper cheek down two hook-shaped Bulges extend, namely an upper hook 15 and a hooked back and down hook 14, which corresponds to the projection 14 mentioned above. These hooks are each made of protrusions 12 or 16 engaged from behind in part 3, in such a way that only one degree of freedom for the solution of receiving rail 7 and part 8 remains at the bottom.

Finally, for the final mutual securing of the receiving piece 7 and part 8, the receiving part 7 has a plane 17 which is inclined at an angle to the vertical and expediently extends over the entire width of the receiving rail 7, whereas a hole 18 is provided in the part 8. which points to this F.bcnc 17 and impinges on the inclined plane 17 at ^{an angle of approximately C 'O.} The bore 18, which runs through the entire part 8, is provided with a thread in which a screw pin or threaded pin 19 is arranged. When the screw pin 19 is screwed into the thread, a point is finally reached where it meets the inclined plane 17 perpendicularly and is supported thereon in such a way that the piece 8 is completely and firmly clamped to the receiving piece 7. A force component is also developed upwards in the vertical direction - due to the plane 17 which is preferably inclined by 30 "from the vertical - so that reliable centering in the vertical direction is achieved by stopping the projection 12 within the groove 11 of the receiving rail 7 will.

The when the upper beam 6 and horizontal and vertical forces occurring when the sheet metal is bent, in addition to pure compressive forces mch can lead to a torque at the Finspannstellc, are caused by the grooves and projections securely received in mounting rail 7 and part 8. As in particular from FIG. 3 It is clear that a slight loosening of the screw pin 19 can cause a lateral displacement of the Tcilstückc can easily be made within the mounting rail, with the Teilstiick on Reason for guidance through grooves and protrusions in

ίο the mounting rail can slide. Will the Screw pin unscrewed so far that its lower part is out of the connecting plane of the upper Groove and lower protrusion in the receiving rail? pulls back, then the piece can follow taken out below and replaced by another.

The screw pin 19 is advantageously designed in such a way that that it carries in its lower part an insert 20, which is made of a softer material than that Material of the receiving rail 7 is made, so that even a firm bias does not damage the rail can. The pressure piece or insert 20 in the screw pin 19 extends advantageously in a central drilling

»5 tion.

As already mentioned, a particular advantage of the invention can be seen in the fact that now a very quick change of parts is possible. thereby achieving a considerable saving in set-up parts

3 »will. Furthermore, it is advantageous to use the device according to the invention no loose parts accumulate, which in a cumbersome loosening and unscrewing misplaced and can be lost. Furthermore, it is still used for precise centering no longer necessary to ar bet with elongated holes, because of the arbitrary shifting ability lichkcit the piece can be inserted and fastened exactly at any desired point.

For this purpose 2 sheets of drawings

Claims (7)

Patent claims: 1. Device for fastening interchangeable upper sections, in particular of Goat foot rails, round rails, pointed rails and the like, as well as upper tools or press rams on mounting rails and upper cheeks of folding machines or on press beams of press brakes ^ where the one « Mounting rail attached to the upper beam and the folding rail to be used with interlocking Grooves and projections are provided in complementary design, characterized in that that between the groove / projection units acting as anchoring means as a result of a groove jamming, screw pins (19) are provided, which run in threads (18) on the sections (8) that the Screw pins (15) extend through the respective section 1 (8) and with their lower part Support against the mounting rail (7). 2. Device according to Ai pruch 1, characterized in that that the TciMück (8, 8 ', 8 ") consists of several parts and that each part for gapless insertion into the mounting rail (7) in its upper area a projection (12) running across its width and in its the lower area has an upwardly opening groove (13) 3. Apparatus according to claim I or 2, characterized in that the Λ jfnahmeschiene in its upper region cii.e übe ■ its entire width running, η; κ; i opening at the bottom and the projection (12) of the section (Ii) receiving Groove (11) and in its lower region a projection (14) running over the entire width, extending downwards and engaging in the groove (13) on the part (8). 4. Device according to one of claims I to 3, characterized in that the projection (12 or 14) and groove (13 or 11) on section (8) and mounting rail (7) are rectangular in shape and offset from one another in depth are arranged and that between the upper groove (11) of the receiving rail and her linter projection (14) one over the 'jesamte Wide running and with respect to the vertical inclined surface (17) is provided against which »I supports the screw pin (19) of the section (8). 5. Device according to one of claims 1 | iis 4. characterized in that the angle «les screw pin (19) through the section (8) corresponds to the angle of inclination of the surface (17) of the Aufnah-Ineschiene (7) and 30 compared to the vertical amounts to. 6. Device according to one of claims 1 to 5, characterized in that the surface (17) and the screw pin (19) are arranged and coordinated so that the section (8) can be removed downwards after partial loosening of the screw pin. 7. Device according to one of claims I to 6, characterized in that the screw pin (19) in its lower part with one inserted into a central hole on the screw pin (19) Druckstüek (20) is provided, which is made of a softer metal than the metal of the mounting rail (7) exists.