SU937125A1

SU937125A1 - Tool-electrode

Info

Publication number: SU937125A1
Application number: SU803263949A
Authority: SU
Inventors: Анатолий Васильевич Глазков; Анатолий Викторович Михайлов; Станислав Владимирович Романов; Сергей Петрович Горбач; Юрий Дмитриевич Кряжин
Original assignee: Московский Ордена Ленина Энергетический Институт
Priority date: 1980-12-30
Filing date: 1980-12-30
Publication date: 1982-06-23

Description

(54) ЭЛЕКТРОД-ИНСТРУМЕНТ(54) ELECTRODE-TOOL

Изобретение относитс к электрофизическим и электрохимическим методам обработки материалов и, в частности, касаетс электрода-инструмента дл размерной электрохимической обработки по методу трепанации, деталей.The invention relates to electrophysical and electrochemical methods of treating materials and, in particular, relates to an electrode tool for trepanation, dimensional electrochemical machining, and parts.

Наиболее .близким к изобретению по технической сущности и достигаемому ; результату вл етс электрод-инструмент дл размерной электрохимичес-. кой обработки по методу трепанации, выполненный в виде полого цилиндра с рабочим буртиком и с изол цией на внешней и внутренних сторонах, с элементом удержани образующегос керна внутри цилиндра, в котором выполнены каналы дл проток а электролита . Элемент удержани выполнен в виде упругого элемента иэ литой резины с глухим отверстием , расположенным по оси электрода дл закреплени керна l.Closest to the invention of the technical nature and achievable; The result is an electrode tool for dimensional electrochemical. A trepanation treatment, made in the form of a hollow cylinder with a working shoulder and with insulation on the outer and inner sides, with a core element holding part inside the cylinder, in which channels for the electrolyte duct are made. The retention element is made in the form of an elastic element of cast rubber with a blind hole located along the axis of the electrode for securing the core l.

Недостатком электрода-инструмента вл етс то, что выполнение элемента удержани из упругого материала приводит к вибраци м образующегос керна из-за высоких значений давлени прокачиваемого электролита и к технологически сложност мThe disadvantage of the tool electrode is that the implementation of the retention element from the elastic material leads to vibrations of the core formed due to the high values of the pressure of the pumped electrolyte and to technological difficulties.

при изготовлении данной конструкции .in the manufacture of this design.

Цель изобретени - упрощение конструкции и повышение надежности удержани ,керна в процессе обработки.The purpose of the invention is to simplify the design and increase the reliability of retention, core during processing.

Поставленна цель достигаетс тем, что в электроде-инструменте .дл размерной электрохимической обработки по методу трепанации, выполнен10 ном в виде полого цилиндра с рабочим буртиком и с изЪл цией на внешней и внутренней сторонах, с элементом удержани образующегос керна, в котором выполнены каналы дл про15 тока электролита, элемент дл удержани керна выполнен с утолщением внутренней изол ции, начинающимс на.рассто нии от рабочего буртика не болёё толщины трепанируемой The goal is achieved by the fact that in a tool electrode .dl dimensional electrochemical machining according to the trepanning method, it is made 10 in the form of a hollow cylinder with a working collar and with radiation on the outer and inner sides, with a retaining element of the core formed, in which the channels for the core are formed. the current of the electrolyte, the element for holding the core is made with a thickening of the internal insulation, starting at a distance from the working collar of no more than the thickness of the trepanning

20 заготовки, а внутренний диаметр места утолщени изол ции равен диамет-, ру керна.20 of the workpiece, and the internal diameter of the place of thickening of the insulation is equal to the diameter of the core.

На фиг.1 изображен злектрод-инст .румент и обрабатываема деталь, вид 1 shows the electrode-tool and the workpiece, view

25 спереди; на фиг.2 - разрез А-А на фиг.1.25 in front; figure 2 - section aa in figure 1.

Claims

The electrode tool consists of a hollow cylinder 1 with a working shoulder 2 and with insulation on the outer 3 and inner 4 sides, having a core 5 holding element 6 formed in the rod 7. In the holding element 5 there are channels 8 for the flow of electric roller. The electrode tool works as follows. During the process of dimensional electrochemical processing, the electrode tool is inserted into the body of the workpiece 1, forming an annular slot in it and at the same time a core 6, the electrolyte is supplied to the treatment area, for example, through an electrode tool and a stick 8. When flashing the part 7 to a depth equal to no more than 80% of the thickness of the part 7, the core 6 enters, through a sliding fit, a thickening of the inner insulation 4 and thereby reliably locks in it from vibration and falling out at the end of the trepanation of the part 7. The distance from the working shoulder to place is thickened and internal isolation equal to no more than 80% of the thickness of the trepanned billet, selected from the condition of reliable retention of the core and creation of a chamber of calm electrolyte released from channels 8 to: its entrance into the treatment zone. The use of the invention will eliminate the vibration of the resulting core and thereby increase the processing stability at the final stage of the treating operation, as well as simplify the manufacturing technology of the electrode tool. The invention Electrode-tool for electrochemical trepanation of holes, made in the form of a hollow cylinder, on the working surface of which a flange is made, and the outer and inner sides of the cylinder are insulated, while in the cylinder there is an element for holding the core with holes for the passage of electrolyte, which differs so that, in order to increase the reliability of the core retention, a thickening is made on the inner insulation to retain the core formed, located at a distance of about the shoulder not more than 80% of the thickness of the core paniruemoy preform. Sources of information taken into account in the examination 1. USSR author's certificate 722718, cl. B 23 P 1/12, 1977.