SU753579A1

SU753579A1 - Apparatus for guiding wire electrode in electroerosion cutting-out machines

Info

Publication number: SU753579A1
Application number: SU762326560A
Authority: SU
Inventors: Юрий Михайлович Горев; Валерий Михайлович Лахтюхов; Вадим Евгеньевич Полоцкий
Priority date: 1976-02-24
Filing date: 1976-02-24
Publication date: 1980-08-07

Description

1one

Изобретение относитс к электроэроэионной обработке, точнее к конструкци м устройств дл электроэрозионных вырезных станков.The invention relates to electric aeroion processing, more precisely to the design of devices for EDM cutting machines.

Устройство предназначено дл на- 5 правлени и фиксации положени движущегос электрода-проволоки в непосредственной близости к зоне обработки и может быть использовано во всех модел х электроэрозиоИных вырезных tO станков, работающих электродом-проволокой с диаметром в диапазоне от 0,01 до 0,4 мм.The device is intended for directing and fixing the position of a moving electrode wire in close proximity to the treatment area and can be used in all models of electroerosion cut-tO machines operating with a wire electrode with a diameter in the range from 0.01 to 0.4 mm .

Известно устройство дл направлени электрода-проволоки в вырезных элек- 15 троэрозионных станках, выполненное в виде корпуса, в котором размещены направл ющие элементы из износостойкого материала в виде неподвижных вкладышей , образукицих двугранный угол с 20 ребром, параллельным оси электродапроволоки и подвижных вкладышей, подпружиненных в плоскости, перпендикул рной оси электрода-проволоки.It is known a device for guiding the electrode-wire in cut-off electro-trozionic machines, made in the form of a body, in which the guide elements are placed of wear-resistant material in the form of fixed liners, forming a dihedral angle with a 20 edge parallel to the axis of the electro-wire and movable liners spring-loaded plane perpendicular to the axis of the electrode-wire.

Электрод-проволока в таких направ-25 л ющих проходит через пр моугольное отверстие, образованное -четырьм плоско-параллельными планками, две из которых подпружинены в поперечном направлении , причем одна из них в 30The electrode wire in such guides passes through a rectangular opening formed by four plane-parallel strips, two of which are spring-loaded in the transverse direction, one of which is 30

двух взаимно перпендикул рных плоскост х , выбира зазор между стенками отверсти и электродом проволокой l .two mutually perpendicular planes, choosing a gap between the walls of the hole and the electrode with a wire l.

Недостатком этого устройства вл етс невозможность обработки электродом-проволокой диаметром меньше 0,1 мм возможный диапазон используемых проволок невелик в силу малой одвижности направл ющих элементов.A disadvantage of this device is the impossibility of processing by an electrode-wire with a diameter of less than 0.1 mm; the possible range of wires used is small due to the low uniqueness of the guide elements.

Целью изобретени вл етс устранени указанного недостатка.The aim of the invention is to eliminate this drawback.

Это достигаетс тем, что, на двух взаимно перпендикул рных сторонах корпуса , перпендикул рно оси электродапроволоки , выполнены пазы, смещенные вдоль указанной оси, в каждом из которых размещены упом нутые вкладыши, причем подвижные вкладыши установлены с возможностью поворота в плоскости паза и смещени вдоль него.This is achieved by the fact that, on two mutually perpendicular sides of the housing, perpendicular to the axis of the electroconductor, grooves are made that are displaced along said axis, in each of which the said liners are placed, and the movable liners are installed with the possibility of rotation in the groove plane and displacement along it .

Claims

FIG. 1 shows the device in an axonometric view, the upper part of the device is shown in the open form, corresponding to the position of the movable inserts during wire filling, and the lower part - in the working position, in FIG. 2 - the position of the inserts when filling the wire (top view); in fig. 3 - position of inserts and wire in the working position (top view). The guide elements are assembled in housing 1, having grooves of right-angled form on two lateral sides. In the grooves placed liners 2 and 3, and the liners 2 are fixed in the housing, and inserts 3 have the ability to rotate and shift along the groove of the housing. The movable inserts 3 are constantly pressed against the inserts 2 by a spring 4. The pressing force is adjusted by a screw 5, the movable 3 and the fixed 2 inserts form a pair of guides. items. At the ends of the liners at the wire base portion. cylindrical rods 6 are embedded of wear resistant material. The pairs of guide elements are arranged in parallel planes, while the pair is turned relative to the previous one so that the fixed liners 2 with the rods 6 at the ends form in plan a dihedral base angle (Fig.2) in which the electrode-wire 7 is based Using movable inserts 3, both of them are forced to press the guide wires to the sides of the base angle (Fig. 3). The four upper liners and the four lower liners (Fig. 1) form two base zones f displaced towards the axis of the wire, which results in an increase in the portion of the wire based in the guides. The device works as follows. When charging the wire, the inserts 3 shift and release the base angle. After the wire is threaded, the inserts 3 return to their working position and rotate by an angle depending on the diameter of the wire, while the wire is between the insert 2 and 3 with the rods 6, each baking its base. The point contact between the wire electrode and guide elements having a cylindrical surface in the area in contact with the wire provides minimal fluctuations of the friction force and favors the constant tension of the prowling and the stability of the process. The arrangement of the fixed guiding elements of the device provides for a strict fixation of the position of the caster in two coordinates, and the presence of rotatable spring-loaded elements — the constant mode of the electric wire to the base stationary elements, regardless of inconsistency of the wire diameter. Tests of the proposed device showed the reliability of its work and confirmed the advantages described above. The conditions will be used in commercially available EDM cutting machines. The invention The device for guiding the electrode-wire in the slotted EDM machines, made in the form of a body in which the guide elements of wear-resistant material in the form of fixed liners forming a dihedral angle with an edge parallel to the axis of the electrode wire and movable liners spring-loaded in the plane perpendicular to the axis of the electrode-wire, which, in order to expand the range of wires used, on two mutually perpendicular sides of the body, perpendicular ndikul-angles to the axis of the wire electrode are formed grooves which are offset along said axis, each of which has the said inserts being movable inserts are rotatably mounted in the slot plane and displaceable along it. Information sources. taken into account during the examination 1. Copyright certificate № 446381, cl. B 23 P 1/08, 1973.