SU1465172A1 - Arrangement for press-fitting bushings - Google Patents

Abstract

The invention relates to powder metallurgy, in particular to devices for pressing in sleeves, which are thin thin-walled powder sleeves, into shells. The aim of the invention is to increase productivity. Before pressing into the space between the cams 15, the shell 16 is installed, and a thin-walled powder sleeve 9 is installed on the thrust sleeve 6.

Description

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The invention relates to powder metallurgy, in particular, to devices for pressing in sleeves, preferably thin-walled powder sleeves, into shells.

The aim of the invention is to increase productivity.

The drawing shows the described device (to the left of the axis, the position is shown before the start of pressing, to the right of the axis - after pressing).

The device consists of a fixed plate 1 with guide columns 2 and springs 3. On this plate, on the substructure 4, using a clamping ring 5, the procreate bush 6 ... Inside it is firmware 7, which is installed on the ejector of the press 8 and is centering Ele .npH —installation of a press-fit thin-walled powder sleeve 9.

Upper movable goti 10 through guide bushes 1t rests

on the spring and its upper position

limited by nuts 12 with washers 13. A matrix 14 with cams 15 is installed in the bore of the top plate to secure the shell 16. In the bottom and top of the matrix there are polyurethane rings 17 and 18, the Cams installed in the cavity of the matrix, through the washer 19, rest on one of the poly-urethane rings. A calibration ring 20 is fixed in the lower bore of the plate. A punch 21 is mounted on a press slider (not shown).

71p to prevent the cams from falling out of the cavity of the matrix when the scientific research institute of a two-layer product was removed, a ring limit was set on the upper state

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five

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Body 22. In order to center the cams in the cavity of the matrix (without a shell) between the side ends of the cams, flat springs (not shown) are installed.

The device works as follows.

Before pressing into the space between the cams 15, a casing 16 is installed on top, and a thin-walled powder bushing 9 is installed on the guide part of the firmware 7.

When moving the punch. 21 presses down, the sheath 16 together with the cams moves down in the same direction. In this case, the cams, moving along the conical surface of the matrix 14, compress the shell, ensuring its reliable fixing. Upon further movement of the press ram, the casing over the cams shoulders, compressing the polyurethane rings 17, 18, re-. Places the top plate 10 along the guide columns 2 down. When this happens, the ring is calibrated by the ring 20 of the powder sleeve and is axially pressed into the casing.

After the end of the axial pressing, the movement of the press slide stopped, -

shchatsya. ,

Nri, immobile slider press

firmware 7, relocation, wipe up from the bottom of the nod 8, impl radial pressing of the thin-walled powder; sleeve in the shell.

At the end of the press-in, the ejector and the slider: return to the starting position. Upper plate below. the springs also reset to polyurea

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that, the new Rings 7. to 8 are unclean and, by acting on the die and through the washer 19 on the cams, release the shell with the pressed-in powder bushing. The resulting double-layer product, along with the firmware, removes the s.

Before implementing the next to pressing, the firmware is re-installed on the ejector to carry out the next backup.

The formula was invented. The device for pressing in predominantly thin-walled bushing sleeves into the shells contains a punch and a thrust sleeve, which is equipped with an upper and lower plates with interconnected column matrix with clamping jaws, : a vibrating ring and an ejector with firmware placed in a stop sleeve, with the bottom plate you

Thus, the described device with a hole for placement

It allows for the operation of the press and one installation of the shell to perform three operations: calibration, axial | And radial pressing. This leads to an increase in production.

the ejector, the die with the clamping jaws and the calibrating ring is placed in the upper plate, the latter has the possibility of a reciprocal movement of the displacement, and the supporting sleeve is mounted on the bottom plate

5172 F

to the formula of the invention. A device for pressing the sleeves, mostly thin-walled powder sleeves, into the shells containing a punch and a stop sleeve, about which it is equipped with the upper and lower plates, interconnected by columns, a die with clamping jaws: a gage ring and a pusher with firmware placed in a thrust hub, the lower plate of the ejector, a matrix with clamping jaws and a calibrating ring placed in the upper plate, the latter EET possibility of reciprocating postu- |'s translational displacement and persistent 1vtulka installed on the bottom plate.

Editor M. Bandura

Compiled by A.Maturii

Tehred A. Kravchuk Proofreader L. Pilipenko

Order 864/14

Circulation 710

VNISh of the State Couttet on Inventions and Discoveries at the State Committee for Science and Technology CCF 113035, Moscow, Zh-35, 4/5 Raushsk Nab.

Production and Designer Works Patent, Uzhgorod, ul. Gagarin, tOI

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Claims (1)

SUMMARY OF THE INVENTION A device for pressing bushings, mainly thin-walled powder bushings, into shells containing a punch and a thrust bush, which is provided with an upper and lower plate, interconnected by columns, a matrix with clamping cams, a calibrating ring and an ejector with firmware located in the thrust sleeve, while the bottom plate is made with an opening for accommodating the ejector, a matrix with clamping cams and a calibration ring is placed in the upper plate, the latter has the possibility of reciprocating movement, and the persistent [sleeve is mounted on the lower plate.