SU1491636A1 - Electrochemical working apparatus - Google Patents

Abstract

The invention relates to electrochemical removal of burrs and rounding of sharp edges from blanks such as washers assembled into a bag. The aim of the invention is the expansion of technological capabilities for processing blanks that cannot be loaded with axial force in a package. A package of blanks is placed in a chamber between the annular outer and rod-shaped inner electrodes. To center the blanks, insulating plates are placed on the inner electrode. The internal electrode is kinematically associated with a source of torsional vibrations. In the course of processing, due to the torsional vibrations, the blanks, which are freely put on the insulating plates, are displaced in a circular direction relative to the said plates, as a result of which the plates are shielded by the plates and the metal is removed along the entire circumference evenly. 2 Il.

Description

The invention relates to electrochemical machining, in particular to electrochemical deburring and rounding of sharp edges along the outer and inner contour of workpieces such as washers and rings assembled into a bag.

The purpose of this invention is to expand the technological capabilities for processing workpieces that cannot be loaded with axial force in a package.

FIG. I presents a device for electrochemistry for deburring from a roll of zag type, longitudinal section; in fig. 2 - section A-L in FIG. I.

The device contains an external graphite elekrod I ,. installed between the insulation shields 2 and 3, with which it forms a closed sealing chamber 4. Moreover, the insulation shielding screen 2 is retracted.

Inside the chamber 4 coaxially e. The section I of the section I has been replaced with an internal electrode consisting of a metal rod 5, B1) 1 filled, for example, steel l2Xl8Hl () T and graphite wtu, 1 ki 6, screwed onto the rod 5. fluctuations. Inner electrode

coupled with insulating screens 2 and 3 for landing movement.

In order to ensure the tightness of the chamber 4 when the torsional oscillating inner electrode is not reduced, the rod 5 is introduced into the chamber 4 through the elastic seal 8.

On a graphite sleeve 6, insulating plates 9 are fixed in a known manner, the width of the outer face surface of which is made not larger than half the amplitude of torsional vibrations.

In chamber 4 there is a lot of 1-packaged blanks 10 with filling the chamber 0.8-0.85 in its height N.

In insulating electrodes | ан anach 2 and 3, the holes II, 12 d, -1 of the input of electrolyte and 13, 14 for removal of eio and. cameras 4.

E.Chtrod I and graphite I.1ka 6 through the rod 5 are connected to the poles of the source of a non-temporary 1 h) current.

The device works in the same way.

When removed from, 1 rationally, 1 ek | 1ean 2 on the inner 11 e, | ecr) .1 | 1abi) there is a package of parts. Then from 1π1-1 screen 2 setting-. pulls into place and presses against the em.e (L

four

WITH

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oo

05

Trol 1, i4 p ieTii: inpyH chamber 4, and effort P, 11 | N B () CX () g 1 cm () tzhimg) K) I1 the power of electrolyte inside the chamber 4.

In chamber 4 in the c; 1 spacing 11 and 12, an e. 1 monolith is fed, which, when closed, interelectrode ja: iop, is output through holes 13 and 14.

At the same time e feed: electrolyte includes a source of 7 torsional vibrations, providing displacement of the support sites on the inside (base) surface of the part. K y. excluding shielding by its insulating plates and electrochemical processing.

After that, VK, 1K) is the source of alternating current and to the electrode 1 and graphite vtu, 1ku (technical current is supplied through the rod 5.

Q device bin. During the semi-period, the electrochemical treatment goes

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details I) non-nodically external or internal surfaces.

Formula.la isorep No Device for the electrochemical processing of workpieces such as washers assembled into a package containing a chamber of insulating material, in which the internal electrodes are installed in the form of an outer and in the form of a rod, an internal drive electrodes, to ensure the relative movement of the package n electrodes and the static technological current, characterized in that, with the expansion of technological capabilities in the processing of workpieces, which can not be loaded with an axial force in the package, the internal electrode along the cylindrical oh ioverhnosti provided for centering workpieces iso thereon; 1 tsnonnymi nlasti- na.mn. and, as a drive for the automatic transmission, the source of a twist, 1 ny oscillations, is kinematically connected with the input electrode.

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Claims (1)

A device for electrochemical processing of washers such as washers assembled in a bag containing a chamber of insulating material, in which the outer electrodes and the inner electrodes are mounted in the form of a ring, a drive for providing relative movement of the bag and electrodes and a source of technological current, characterized in that , in order to expand technological capabilities in the processing of workpieces that cannot in the bag, 5 are loaded with axial force, the inner electrode along the generatrix of the cylindrical surface of sleep It is used to center blanks on it with insulating plates, and a torsional vibration source connected kinematically with the internal electrode is used as a drive.