SU876347A1

SU876347A1 - Tool electrode

Info

Publication number: SU876347A1
Application number: SU802880446A
Authority: SU
Inventors: Олег Владимирович Тарханов; Лилия Степановна Тарханова
Original assignee: Уфимский авиационный институт им.Орджоникидзе
Priority date: 1980-02-13
Filing date: 1980-02-13
Publication date: 1981-10-30

Description

1one

Изобретение относитс к электрофизическим и электрохимическим методам обработки..This invention relates to electrophysical and electrochemical processing methods.

Известен электрод-инструмент дл электрохимической обработки дл получени выемок в боковых спииках канала , который выполнен полым с глухим передним концом, на наружную noBejjxность электрода-инструмента наноситс электроизолирующее покрытие, а на его боковЬй поверхности выполнено отверстие дл истечени электролита, причем электролит вводитс в полость под давлением tl3.гThe electrode-tool for electrochemical processing is known for obtaining grooves in the lateral spikes of the channel, which is made hollow with a blind front end, an electrically insulating coating is applied to the outer noBejjx of the electrode-tool, and an electrolyte hole is made on its side surface pressure tl3.g

Недостаток известного устройства - 15 уэкие функциональные возможности и сравнительна сложность эксплуатации. Уэкие функциональные воэможности устройства заключаютс в том, что электрод-инструмент можно примен ть дл получени выемок только строго определенной формы, при изменений же формы необходимо полностью эамен ть весь инструмент.A disadvantage of the known device is 15 high functionality and comparative complexity of operation. Uneven functional capabilities of the device consist in the fact that the electrode tool can be used to obtain notches only of a strictly defined form, and if the form changes, the whole tool must be completely replaced.

Сравнительна сложность эксплуата- з ции электродо-инструмента состоит не только в необходимости его полной замены при необходимости изменить конфигурацию отверсти , но и в сравнительной сложности его очистки в 30 The comparative complexity of the operation of an electrode tool consists not only in the need to completely replace it if necessary to change the hole configuration, but also in the relative complexity of its cleaning in 30

случае забивки его продуктами электрохимического окислени металла после окончани процесса обработки.if it is clogged with the products of electrochemical oxidation of the metal after the end of the treatment process.

Цель изобретени - расширение функциональных возможностей и упрощение эксплуатации электродо- инструмента.The purpose of the invention is to expand the functionality and simplify the operation of the electrode tool.

Поставленна цель достигаетс тем, что электрод-инструмент, содержащий полую камеру с ввод щим патрубком и с вывод щими формирующими отверсти ми , снабжен подвижным штокам, изолированным снаружи диском и фиксирующей гайкой при этом пола камера с одной стороны изготовлена открытой , в основание этой камеры ввинчен шток, положение которого определ етс фиксирующей гайкой, размещаемой с внешией.стороны основани камеры , а на свободный конец штока с открытого конца камеры жестко насажен изолированный диск.The goal is achieved by the fact that the electrode-tool containing a hollow chamber with an inlet nozzle and with outgoing forming apertures is provided with movable rods, an outside insulated disk and a fixing nut while the floor of the chamber is open on one side and screwed into the base of this chamber a rod, whose position is determined by a locking nut placed with the outer side of the chamber base, and an insulated disk is rigidly mounted on the free end of the rod from the open end of the chamber.

Поверхность диска со стороны открытого конца полой камеры в радиальном направлении изготовлена либо гладкой, либо с радиальными канавками , профилированными по различным законгм.,The disk surface on the side of the open end of the hollow chamber in the radial direction is made either smooth or with radial grooves profiled according to different laws.

Claims

The floor chamber on the side of the base into which the rod is screwed in has an inlet. The drawing shows the proposed device. A device for electrochemical machining of internal surfaces of hollow electrically conductive parts, namely to obtain grooves in the side walls of the channels, for example, the part contains a hollow chamber 2 / insulated from the outside using a dielectric 3 and provided with an inlet 4, the chamber being made open on one side . At the base of the chamber, an electrically conducting rod 5 is mounted on the thread, fixed from the outer side of the chamber base by a nut b. The device is equipped with an externally insulated disk 7 fixed from the free end of the chamber 2 on the rod 5 (for example, by means of a threaded joint). The disk surface on the side of the open end of the chamber can be made either smooth or with radial grooves of various configurations. The negative pole of the technological voltage source is connected to the rod 5, and the positive pole to the workpiece 1.-. The operation of the proposed device is as follows. The electrode tool is placed inside the machined channel of the part 1 of the hole between the open end of the hollow chamber 2 and the disk 7, opposite the surface to be machined. Enter under pressure the electrolyte through the pipe 4, receive a directed jet in the area of the treated surface in accordance with the shape of the slit or the hole between the free end of the chamber 2 and the disk 7. Using the rod 5 and nut b you can adjust the amount of radial gap between the edge of the open end of the hollow chamber 2 and disk 7, which expands the functionality, since there is no need to change the electrode completely. Due to the fact that the disk 7 can change its position relative to the open end of the hollow chamber 2, by expanding or narrowing the gap between them, it is possible to change the width of the groove, i.e. With the same tool electrode, it is possible to make both very narrow and rather wide annular slots on the internal surfaces of the channels in the electrically conducting parts. Since the disk 7 is removable, it can easily be replaced with another disk in case of a change in the configuration of the holes to be machined, i.e. the functionality of the electrode tool is also expanded. Due to the fact that when changing the configuration of the grooves in the proposed electrotool, it is necessary to replace only the disk 7, and not the entire electrode-tool, the materials required for the manufacture of new electrodes-tools are completely reduced, the need to manufacture a hollow chamber and the whole equipment for it, it also reduces the cost of raw metal, insulating material, etc. and labor. The electrode tool is collapsible, therefore, it is easier to replace and easier to clean if necessary. All this expands the technological capabilities of the proposed device, simplifies its operation and increases the efficiency of its use in the electrochemical machining of internal surfaces of channels in electrically conductive parts. 1. Electrode-tool for dimensional electrochemical machining of internal surfaces of parts, made in the form of a hollow cylinder, insulated from the outside, so that they, in order to expand technological capabilities and simplify the operation of the electrode-tool, it is provided with a disk, a rod rigidly connected with it, located inside the electrode and mounted for movement relative to the cylinder.

2. Electrode tool according to claim 1, characterized in that the surface of the disk from the open end of the cylinder is made smooth.

3. Electrode tool according to claims 1 and 2, characterized in that the disk surface from the open end of the cylinder is made with radial grooves. Sources of information taken into account during the examination 1. B. Artamonov. and others. Dimensional electrical processing of metals. M ,, Higher School, 1978 p.265, ris.159.