SU899320A1

SU899320A1 - Dimensional electrochemical machining device

Info

Publication number: SU899320A1
Application number: SU802876105A
Authority: SU
Inventors: Александр Алексеевич Габагуев; Владислав Павлович Смоленцев; Зуфар Барыевич Садыков
Original assignee: Базовая Лаборатория 104 Научно-Исследовательского Технологического Института; Воронежский Политехнический Институт
Priority date: 1980-01-30
Filing date: 1980-01-30
Publication date: 1982-01-23

Description

II

Изобретение относитс к электрохимической размерной обработке металлов к сплавов и может быть использоваио при чистовой обработке внутренних каналов круглого сечени переменного диаметра в длиниомерных - детал х.The invention relates to the electrochemical dimensional processing of metals to alloys and can be used for finishing machining of internal channels of circular cross section of varying diameter in length-dimensional parts.

Известно катодное устройство дл размерной электрохимической обработки, имеющее кор пус, рабочую часть, упругий выдвижиой элемент и систему регулировани скорости вращени 1 .A cathode device for dimensional electrochemical processing is known, having a core, a working part, an elastic extension element, and a rotation speed control system 1.

Однако известное устройство ие обеспечивает высокой точности обработки вследствие изменени МЭЗ, -так как во врем обработки происходит механический износ изол торов, обеспечивающих зазор между внутренней поверхиостью канала и рабочей частью устройства .However, the known device does not provide high precision processing due to a change in the OED, as during processing mechanical wear of the insulators occurs, providing a gap between the inner surface of the channel and the working part of the device.

Цель изобретени - повышение точности обработки. The purpose of the invention is to improve the accuracy of processing.

Поставленна цель достигаетс тем, что при электрохимической размерной обработке каналов круглого сечени в длинномерных детал х, осуществл емом при относительном перемещении катодного у(тройства, -содержнщего корпус, рабочую часть и упругий элемент , обработку ведут при вращении катодного устройства, рабоча часть которсмго св зана с корпусом посредством упругс О элемента со скоростью, обеспечивающей посто н ный зазор с обрабатываемой поверхностью, а зазора корректируют при помощи датчика положени , установленного на рабочей поверхносга катода и св зашюго с механизмом вращени катодного устройства.The goal is achieved by the fact that in the case of electrochemical dimensional processing of circular channels in lengthy parts, carried out with relative movement of the cathode tube (triplets, the containing body, the working part and the elastic element, the processing is carried out with rotation of the cathode device, the working part of which is connected with the case by means of an elastic element with a speed that ensures a constant gap with the treated surface, and the gap is corrected by means of a position sensor mounted on the working surface. the upper cathode and its surface with the mechanism of rotation of the cathode device.

10ten

На чертеже схематично изображено предлагаемое устройство.The drawing schematically shows the proposed device.

Устройство содержит корпус 1 катодного устройства, внутренние отверсти которого служат дл подвода электролита, а стенх ts дл подвода тока, упругий элемент 2, рабочую часть 3 катодного устройства, датчик 4 положени , установленный на рабочей части катодного устройства и св занный с механиз мом 5 вращени катодного устройства, The device comprises a cathode device housing 1, the internal openings of which serve to supply electrolyte, and ts walls for current supply, an elastic element 2, a working part 3 of the cathode device, a position sensor 4 mounted on the working part of the cathode device and associated with the rotation mechanism 5 cathode device

20 обрабатываемую деталь 6.20 workpiece 6.

Устройство работает следующим образом.The device works as follows.

Claims

The treatment is carried out with the relative movement of the part 6 and the cathode device. 38 Item 6 is connected to the positive pole of the current source, and the cathode device to the negative. The cathode device is centered relative to the axis of the processed to "g Nala. The mechanism for rotating the cathode device 5 is activated. At the same time, due to the centrifugal force Rc, the working part of the cathode device 3 moves to the surface being processed by the sensor until it is touched by the 4 position sensor. As a result, the command is sent to mehaiem S of rotation, the speed of the cathode device 3 is reduced is stirred from the surface to be machined by the action of the elastic force on the value given by the MEZ. Behind the resultant between the centrifugal force Rc and the elastic force of the Fynp element, the working part of the cathode device 3 is in the set position relative to the surface surface being processed. However, during processing, in particular, when the annular grooves are made, the internal surface 11 dissolves, and the magnitude of the MEP increases with the maintenance of a constant gap. The speed of the cathode device is increased so that & l the speed of movement of the working part of the cathode device to the treated surface p The speed of the cathode device and the speed of movement of the part or the cathode device are adjusted according to the desired channel geometry. The device was used to process the part with a length of 160 mm, the internal opening of which had a taper of 0.4 A large cathode hole 162 out of 40HNMA maternal was used.The cathode device was used with a working part of 100 square meters. mm and coefficient of elasticity of the elastic element of KMO. The treatment was performed on an SECO-901 electrochemical machining machine. Processing Mode:. Operating Voltage: Electrolyte12% Feedrate (longitudinal) 0.15 mm / s Cathode device speed: Initial 1.78 rev / s End 2..81. / Sec Setter electrode gap 0.5 mm A channel with a taper of 0.5 and The accuracy of the angular size is within 20. Thus, the proposed device makes it possible to obtain channels of complex 1f file, e repetition profile of the bale channel, EFFICIENCY processing accuracy of 1.3-1.5. The invention is for an electrically sized (chemical) apparatus comprising a housing in which a cathodic working element is elastically mounted with a radial displacement surface, characterized in that, in order to improve the accuracy of processing, the rotational speed control system with an electrode gap is measured. , which is installed on the working surface of the cathode element.Sources of information taken into account in the examination 1. Copyright Institute of the USSR No. 176123, class B 23 P 1/12, 1963.