SU1409402A1 - Head for rivetting by expanding - Google Patents

Abstract

The invention relates to the field of riveting, in particular to heads for riveting by flaring. The purpose of the invention is to improve productivity and improve working conditions by reducing noise. The head includes a housing 1 in which a drive pin of a shaft 2 is mounted on radial bearings. In the latter, crank 3 is mounted on radial bearings and piercer holder 4 is mounted on supports in a crank. The axes of the spindle, the crank 3 and the punch holder 4 intersect at one point. At the end of the housing 1, a washer 5 is installed having an inner conical surface. On crooked

Description

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WITH

140

The type of spherical surface is made, the center of which lies on the axis of the rivoship. The spherical and conic surfaces are in contact with each other at point K. Spindle 2 is installed; 1YM in it, crank 3 receives rotation (from the drive. The crank degrades

with in rotation around the axis of the pinch. The spherical surface of the crank is wrapped around the conical surface of the washer 5. In this case, the piston holder 4 performs a rocking-rotating motion. 1 il.

one

This invention relates to casting techniques, in particular to iviH devices. assembly of parts by flaring. : The aim of the invention is to increase productivity and improve working conditions by reducing noise. i Figure 1 schematically depicts a riveting tin, flaring. I The head for riveting by flaring includes a housing 1 in which the bearing spindle 2 is mounted on radial bearings. In the latter, on the radial bearings, the curve Yip 3 is mounted so that its axis of rotation is inclined to the axis of rotation of the spindle at an angle 0; 4 is mounted on supports in crank 3 in such a way that its axis of rotation is inclined to the axis of the crank at an angle jb (in the particular case about (/1.0.0si spindle 2, crooked bshpa 3 and punch holder 4 intersect at one point. At the end of the core) - Pusa 1 has a washer 5 installed, having an internal conical erhnost, 0s which coincides with the axis P shpinde-. On the crank vtolnena spherical surface whose center lies on the crank axis. spherical and conical surfaces contact each other at the point C.

The device works as follows.

The spindle 2 with the crank 3 installed in it receives rotation from the Drive (not shown). The crank engages the rotation around the spindle axis. The spherical surface of the curvature is rolling on the conical surface of 5t.

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five

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thirty

35

the holder makes a swinging rotational motion. The force P is applied to the head, under the action of which the ripping occurs.

The use of a friction gear in the head for riveting allows to reduce the noise during operation of the device, as well as to increase productivity by increasing the speed of the spindle obtained from replacing the thrust bearings with radial ones.

Claims (1)

Invention Formula Flare riveting head, comprising a housing with a driving spindle mounted in it, angled to the longitudinal axis of the housing, a crank, a punch holder with a rivet punch, and a mechanism for transmitting rotation from the spindle to the crank, the punch being placed at an angle to the crank axis, and the point the intersection of their axes is located on the longitudinal axis of the spindle, characterized in that, in order to increase productivity and improve working conditions by reducing noise, the mechanism for transferring rotation from spindle to crankshaft y made in the form of a friction pair, the elements of which are placed on the body and crank, while the first element of the friction pair on the body is made in the form of a conical surface symmetrically located relative to the axis of the spivdel, and the second element - as part of the medium, the center of which is placed on the axis of the crank .