DE7711131U1 - BASE ELEMENT MADE OF CAST MATERIAL FOR THE MANUFACTURE OF A MOLDED CASTING - Google Patents

Description

Pont-a-Mousson S.A.

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Base element made of casting material for the production of a molded casting

The innovation relates to a basic element made of cast material for manufacture of a forro casting with the help of a gauge.

It turns out that it is difficult in molding, especially in casting is to obtain fittings of large dimensions with acceptable tolerances. On the other hand, if you set up a highly mechanized facility, one is limited with regard to the dimensions of the fittings due to the properties of the plant. In addition, at Increase in the dimensions of the fittings and the defects increase in the same way: twisting, lack of loading, difficult to control Shrinkage changes the integrity of the workpieces and their external appearance.

The task of the innovation is to create a basic element made of cast material for the Hers ^ ^{1 development of} a molded piece with the help of a gauge. Such a Lshre waist normally stops with variable spacing in a given direction and a holding device transverse to this direction and can be used to assemble a molding with two main dimensions, of which

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at least one of significant size is / be designed * so that the Device for the transverse direction, a contact surface that extends in the direction of both of the main dimensions mentioned, as well as lateral stops having.

The innovation according to the basic element is characterized in that it is on its end to be arranged in the vicinity of another basic element has a boundary surface for a cavity to be filled.

The drawings show in

1 shows the structure of a teaching for the production of a mobile manhole frame; and in

2 shows the same application example according to the composite teaching, with in particular the delimitation surfaces provided according to the invention are recognizable for a cavity to be filled.

The frame or part to be made is a sprue of rectangular shape and consists of two identical basic elements or components. 1 and 1a of U-shaped shape and angled profile cross-section. The profile comprises a first leg 2 to form a flat base for the frame and a second leg 3 standing perpendicularly on the first leg to form the rectangular belt of the frame. The base leg 2 is directed outwards with respect to the belt leg 3 and is provided with stiffening corners 4 which are spaced apart between the two legs are attached to the outside of the frame. Furthermore, a reinforcing rib 5 is attached to the inside of the frame and at half the height of the belt leg 3, which is for receiving a not shown Lid is used and at a certain distance from the ends of the legs of the "U" is interrupted for a reason to be explained later. In the end each base element contains at each end of the legs of the "U" a rectangular connecting flange 6 which is perpendicular to the legs 2 and 3 and has a screw hole 7 »

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This frame is manufactured by casting the shortened both basic elements 1 and 1a in suitable molds van Dimensions and subsequent assembly of the two basic elements on a teaching 8.

This gauge 8 has a contact surface 9, formed by a rectangular, flat plate, as well as stops carried by this contact surface. These attacks comprise a first group of lateral ones or alignment stops 10a and 10b along the long sides of the contact surface and a second group of stops 11a and 11b with variable Distance, which are attached along the small sides, with the contact surface and the side stops provide means for holding the frame in place transversely during assembly. All the facilities forming stops to the contact surface and its edge is directed against the basic element that needs to be supported there.

The side or alignment stops consist of stops 10a, here one per leg of the base element, as well as inner stops 10b, as well one per base element leg, these stops on the contact surface are attached and have a distance approximately equal to the length of a leg of a base element. The variable spacing stops also consist of outer stops 11a, here one per basic element, and inner stops 11b, here two per basic element, however, the stops 11a and 11a assigned to a base element 1 11b attached to the contact surface and are spaced apart from the length the base of the base element, while if the outer stop 11a assigned to the other base element 1a is in the same way the contact surface is attached, the associated, inner stops 11b are movably attached to this contact surface, for example by sliding lower approaches of these stops in slots 12, which are parallel are aligned to the large sides of the contact surface. The inner stops 10b and 11b finally have a greater height than the outer stops 10a and 11a because only they essentially adjust the basic elements serve through their inner surface, while the others are mainly used for blocking, and they are in the event that to be assembled Basic elements no inner skirt 5 is provided over the entire height of the basic element must extend.

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The teaching is completed by two parts in the form of a bracket 13, where the distance between the legs is the length of the connecting flanges 6 of the basic elements corresponds to the height of that of the basic elements / wherein the web of each bracket has a hole 14 for filling of adhesive and a vent 15.

The assembly of the basic elements on the teaching happens as follows V7eise:

First, the basic elements 1 and 1a are placed on the contact surface 9 in such a way that they lie next to one another in the direction of their legs and in the direction X-X of the large side of the contact surface, the webs and the legs of these basic elements between the stops 11a and 11a 11b or the stops 10a and 10b sit. Vfegen of the solid Distance between the stops 10a and 10b and the play of the element 1 associated with ' Stops 11a and 11b, the element 1 sits immovably on the contact surface, while the element 1a slide on the contact surface in the direction X-X because of the mobility of the inner stops 11b assigned to it can.

Then you set the inside length of the frame to the desired value Distance between the two inner stops 11b by moving the base element 1a associated stops 11b in.den elongated holes 12, For example, for this purpose by counters or the like. Graduated, which allow the stops on the Abetzfläche in the predetermined Able to hold immobile.

The base element 1a is then brought into contact with the stops 11b in such a way that that the two basic elements 1 and 1a are exactly in their desired mutual position in order to make the two basic elements formed frame to take into account the intended length very carefully.

Then you put bolts 16 in the holes 7 of the flaps 6 of the two basic elements one, but without putting it on, solely for a perfect one To achieve alignment of the two basic elements.

The two brackets 13 are then considered over each of the legs

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able pairs of flanges 6 and thus tightly closes the spaces between the basic elements. Adhesive 17, for example an epoxy resin with or without filler, is then injected into these interspaces and through the holes in the brackets 14 in such a way that it completely fills the interspaces.

As soon as the adhesive has hardened, it takes about half an hour to four Hours takes, w ±> ei ma: a..e has the possibility of the hardening process in one To speed up the furnace, tighten the bolts 1F. So you get the one you want Roadway frame with the exact desired side lengths, wcfoei the screw connection may also allow a slight preload to apply to the bond points.

If the connection is to be permanent, the screws can be tightened blocked by soldering points or the like.

In addition to its main role as a filler, which it allows on the one hand, in spite of the Great fluctuations possible due to the tolerances of the foundry on the one hand to adjust the dimensions of a workpiece to very precise values and on the other hand if necessary, the production of workpieces of very large dimensions starting from castings of smaller dimensions, the adhesive also serves as a means of uniting the various components and allows the concealment of possible surface defects if necessary on the connecting flanges 6.

In the particular application described, the invention allows roadway frames of much larger dimensions than usual. However, this application is given as an example only, and not intended to be limiting; in fact, the invention is also very different in assembly Components can be used, such as T-connectors, elbows Fork pieces, for assembling pipe systems or even large containers, boilers, etc.

The invention also allows the production of various objects from standardized components in the form of "U", "L" ■ straight pieces, etc. *, with assembly stops for the filling process and possibly one in each case

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Screw connections are to be provided.

One can also learn a doctrine in the form of the objects to be manufactured or make use of a universal teaching, the application of which is then limited to assaulted types of fittings.

Claims (1)

ijööü Horno 1,. ''. ί · '' · 80OD ΜΟηΟιοη * 0, prolllarothatralie 10 ■%! · *! In « a U CVa'h» ¹ · · ' "' Eloonneiier StrnOo 17 PQBURctttMo umpiring · "· η, tianr> · · _ p« t, .Anw. New « ι * "*", "ι." lOlpl-Phys. Eduard Betzier * m * ™ **, »j« ^B10M DIpI. ^Ing.W. Herrmann-Trentepohl aeao13 f / Te | egr »mm« n »c | irlrti Toleorammenechrllti X Bahrpatonto Horno PATENTANWÄLTE Bnbotapnt Mflnchon . J Τ · ΙβΧ OB 220 BS3 TO | OX52153BO O ^ f ~ \ Bank accounts Bnyorlache Vorelnabonk MOnohon es2 SW j Droednor Punk AQ Horn »7-520 4M Poatnchockkonto Dortmund 590 M-W Rei.i M 05 783Λ B / h. Specify bltto in the answer Please send a letter: Munich May 11, 1977 Base element made of cast material for the production of a Molded pieces Claim to protection ν j base element made of casting material for the production of a Fongußstückes with the aid of a jig, characterized in that it has a boundary surface (6) for a cavity (17) to be filled at its end to be arranged in the vicinity of another base element. 7711131 2109.77