DE1400906A1 - Glued connection to completely or partially nestable machine parts or the like. - Google Patents

Description

Company Soharmann & Co ,, R h e y d t / Rhld », Hugo-Junkers-Str.12-52

"Adhesive connection to wholly or partially interlocking Machine parts or the like ""

The invention relates to an adhesive connection on machine parts _{or the like that can be completely or partially plugged into one another}

The task is often to work on a machine or Design part to provide a thin cylindrical shaft « In the case of machining, the manufacturing costs are

exnes of such machine or structural part is very high. It is therefore preferable to insert one end of a rod which corresponds to the cylindrical shaft into a recess or bore in the corresponding second part and to connect it to it. The part to be connected to the rod can be punched in the die and glued to the rod. In the case of drilling tools, for example, the tool cone can be produced cheaply in this way and the drill rod can be inserted into a hole in this cone and glued there _{or the like}

When tying the mentioned machine parts to one another, it is crucial that the adhesive bond between the rod and the second part, e.g. the tool cone, is so intimate that high torques can be absorbed »

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It is an adhesive bond between highly stressed structural parts known (German patent specification 846 644) »at .der _ .... the parts to be connected are pushed into one another after the adhesive has been applied or by inserting connecting pieces with one another are connected, the adhesive surfaces of the male or female part over the length of engagement in one or more Graduations of the diameter are divided, Tor In part, the paragraphs formed by the gradations are higher than the applied Adhesive layer β

The task of the known adhesive joint, like the present adhesive joint, is to distribute the adhesive evenly over the adhesive surface. Z ₀ B _{0 of} the rod, is stripped _o

The invention is based on an adhesive connection on completely or partially nested machine parts, in which the sections of the parts to be connected lie against each other and at least one of the sections has a subdivision over its length, _o It aims to improve the previously known adhesive connection and provides that one of the sections to be connected bears at least one annular groove at a distance from the section ends and the areas between the grooves or between the section ends and the hats run parallel or approximately parallel to the direction of insertion when the two parts are joined. This not only results in a step-like tapering and thus weakening of the

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the part to be plugged in, but it will also be the too performing spanabgebeh.de processing of the part to be inserted reduced »Preferably one sees in the sleeve-like and the part to be inserted into the part receiving the ring grooves «. You can also use both parts if this is deemed necessary will be provided, ring grooves o ■

To d ^! At the rear end of the adhesive surface of one part in the direction of insertion, another annular groove can be provided in which the excess adhesive can collect if necessary *

Will the glue on the inside of the sleeve-like part and if necessary also applied to the part to be inserted, so part of the amount of adhesive is pressed into the grooves and arrives from there 'when the one to be glued is pushed into one another Also parts at sections where the adhesive has been stripped off or reduced »It is preferable to do this. some Draw a back and forth and also a twisting motion around the glue to get anywhere. ·

In the drawing, an embodiment of the invention is shown '^:'

The conical machine or construction part is said to be 'a tool cone serve and is cast in the die. It has · the threaded mounting hole 2, which leads into an enlarged

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Cylindrical recess 3 passes over _a This has in the longitudinal direction of the machine part 1 one behind the other annular grooves 4 and at its end an extended groove 5 "The annular grooves are evenly spaced in the example shown, and the areas 6 between the grooves run parallel to the longitudinal direction L of part 1 o

With this part 1 is the machine or construction part 7, ZoBo to connect a boring bar. This carries a cylindrical Approach 8, the diameter of which corresponds to the diameter of the recess 3, taking into account a game for inserting the part corresponds to the recess 3. The bore 3 forms the section of the machine part 1, with which the extension 8 of the machine part 7, which forms the mating section, is to be connected by gluing is. For this purpose, the areas 6 of the recess 3 and the extension 8 are provided with adhesive. When inserting the approach 8 in the recess 3, the adhesive is distributed and one Part of the amount of adhesive displaced into the grooves 4, so that when Sliding the approach 8 a part of the adhesive from the hats on the approach and on the areas 6 transfers. By the grooves will be part of the adhesive on adhesive-free or «, Adhesive-poor places brought especially when you the approach 8 back and forth several times in the recess, an even distribution of the adhesive is achieved

Should the amount of adhesive that comes from the face 9 is detected, be very large, the excess amount of adhesive is brought into the enlarged hat 5 «

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Claims (1)

Claims : 1Λ00806 1ο Adhesive connection on fully or partially pluggable. Machine parts in which the "connected sections of the üieile lie against each other and at least one of the sections has a subdivision over its length, characterized in that one of the sections to be connected (recess 3) at least one annular groove (4) at a distance from the Section Senaen carries, and. the areas (6) between the Hut en C4-) or ο the section ends parallel or approximately parallel to the direction of insertion when joining the two parts run ^ ■■ - ■ - -f - - Adhesive connection according to Claim 1, characterized in that on the rear bnae of the section in the direction of insertion extended ring groove (5) is provided * 8AD ORIGtNAi 8098 11/0 1 17