SU977855A1 - Embeded composite rivet and method of placing it - Google Patents

Description

(5) MORTGAGE COMPOSITION STAPLE AND METHOD FOR ITS INSTALLATION

The invention relates to riveting-c6oro - (works, in particular, to the construction of embedded rivets and the method of its installation in a rigid package of thick-walled parts working for shearing and tearing in areas where it is necessary to ensure non-falling of composite rivets and radial tension). riveting connection.

The known embedded composite rivet for mounting it into a rigid package of thick-walled parts, comprising a tubular body with a fixing head and a core-punch with a pull element at one end thereof .1 J .;

However, the known design of the composite rivet has the disadvantage that when pressing in the core of the punch with the moving element into the shell of the rivet, there is not sufficient radial tension over the height of the package of riveting, and the closing head is not sufficiently strong.

connection when working for shear and tear and as a result of the destruction of the rod-punch can fall out of the housing. Sa rivets, which reduces the durability of the joint.

The purpose of the invention is to improve the quality of the riveting joint and its durability.

The goal is achieved due to the fact that in mortgage compound

10 rivet for installation in a rigid package of thick-walled parts containing a tubular body with a fixed head and a core-punch with a sleeve, a spherical element at one end thereof, an inner annular groove is made in the tubular body on the side of the fixed head, and at the end of the rivet head a deformable annular tapered protrusion, while on

Claims (2)

20, the core element of the punch rod is made of a deformable shank with a diameter smaller than the diameter of the expensive element. The method of installation of the embedded rivet in a rigid package of parts consists in that the tubular body of the inset rivet installed in the package opening is pressed by pulling a rod-punch with the subsequent formation of a locking head on the tubular body, while before pressing the rod-punch is installed under the tubular body the shank in the direction of its insertion head, the pressing is performed to the location of the shank in the annular groove of the body, and after pressing the rod-punch joint About with the body deform C) comfort from two sides simultaneously with the formation of the closing head. Fig. 1 shows the rivet prior to pressing the core of the punch rod into its housing; in fig. 2 - the same, the type of rivet with pressed into its core-punch; in fig. 3 - riveted rivet in a package of thick-walled parts; general view The core-punch 5 for a dive in a tubular body 1 contains at one end a fitting 6 with a deformable shank 7, the diameter of which is less than the diameter of the said element, and at the other end - a tapered section 8. C GSS installation mortgage composition Noah rivets in hard thick package details is as follows. ... A package of 9 parts is installed between the 10 and 1 press riveting punches (not shown). The tubular body of the embedded head 2 is placed in the opening of the bag, and the center punch is placed under the body 1 along its axis by a shank 7 in the side of the fixed head 2. It is turned on. the working stroke of the punches 10 and 11, wherein the punch 11 acts on the annular tapered protrusion 3 of the embedded gadget 2, and the punch 10 acts on the tapered section B of the pin-rod 5 by pressing the latter into the tubular body 1 of the rivet to the location of the tail 7 in the cylindrical groove i of the housing 1. With the further course of the punches, simultaneous deformation of the rivet and the rod-punch 5 pressed into it from the two sides of the housing 1 takes place with the formation of the closing heads 12 of the rod and the closing head 13 of the rivet, while at the same time The deformation of the annular conical protrusion 3 ensures the rolling of the shank 7 during the formation of the head 12. The application of the invention in comparison with the prototype allows to obtain high-quality riveting joints, ensuring that the embedded rivet is not removable at the time of the connection failure. The rivet is intended for installation in rigid power packages of thick-walled parts, structures with increased radial tension along the height of the package, this leads to an improvement in the performance and service life of the thick power packages connected by the proposed method, as well as aggregates as a whole. Claim 1. A fixed rivet for installation in a rigid package of thick-walled parts, comprising a tubular body with a fixed head and a core-punch with a road element at one end, distinguishes it by the fact that, in order to improve the quality of the joint riveting and its durability, The tubular casing is provided with an internal annular groove on the side of the inset head, and a deformable annular conical protrusion is made on the butt end of the rivet head, with i this on the road element of the punch rod there is a defor iruemy shank having a diameter smaller than the diameter Dorn element. 2. The method of installation of embedded composite rivets in a rigid package of thick-walled parts according to claim 1, which means that a tubular body is pressed into a tubular body installed in the package opening by pulling a rod into a tubular body, characterized in that the rod the punch is installed under the tubular body with a deformable shank in the direction of its embedded head, .zap5 977855. 6 repair of the npOM3BOflflt before the location of the sources of information, the shank in the annular groove is taken into account when examining the trigger, and after pressing in, the rod is combined with the body of the deformity-1. Orlov P, and. The fundamentals are constructed from two sides at the same time with form-5, M, Mashinostroenie, 1972, by closing the closing head.ic. 202, fig. 221 (prototype).