JPS6284929A - Electrode for electric discharge machining - Google Patents

Abstract

PURPOSE:To make it possible to form multiple fine holes simultaneously in one process by arranging multiple rotatable electrode supporting members on a plate-shaped member having multiple openings communicating with a dielectric fluid reservoir and connecting those electrode supporting members to each other by means of a belt. CONSTITUTION:Multiple electrode supporting members 6's and tubular hollow electrodes 8's supported by the supporting members are rotated by a belt 72 routed over a pulley 7, and idle rollers 73's driven by a motor 71. At the same time, a dielectric fluid reservoir 4 is pressurized to supply the dielectric fluid through the multiple openings of the plate-shaped member 5, medium sized holes of the electrode supporting members 6's and fine holes of the tubular hollow electrodes 8's. Under this condition, multiple fine holes can be simultaneously machined into a work 2 by lowering the electrode supporting member 4 supported on a Z-axis 3. Here, since each tubular hollow electrode 8 is located corresponding to the openings of the plate-shaped member 5, the tubular hollow electrodes can be arranged in any desired positions to make it possible to machine multiple fine holes simultaneously in the process.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrode for electric discharge machining. In particular, a plurality of pores arranged parallel to each other at relatively unspecified positions,
The present invention relates to an electrode for electric discharge machining that can be simultaneously formed in about -1 seconds.

[Conventional technology]

When forming pores using electrical discharge machining, the electrode is a tubular hollow electrode, the machining fluid is flowed into the hollow hole of the tubular hollow electrode, and a rotary tubular hollow electrode is used to rotate the tubular hollow electrode. method (known to be effective).

[Problem that the invention seeks to solve]

However, if it is necessary to form a plurality of pores, it would be very convenient if they could be formed at the same time in a size of about 1 L. Furthermore, even if the relative positions of these pores; δ are unspecified, it is very convenient if all pores can be formed at the same time with a position of about -1-.

In response to this demand, the present invention provides an electrode for electric discharge machining that can simultaneously form a plurality of pores arranged in parallel to each other at relatively unspecified positions in one process.

[Means for solving problems]

The means taken by the present invention to achieve the above object are as follows: (a) A plate-like member 5 having a plurality of openings 51 communicating with the machining fluid storage tank 4.

(b) A hollow hole 61 supported by this plate-like member 5 and communicating with each of the plurality of openings 51 provided in this plate-like member 5
and a plurality of rotatable electrode support members 6.

(c) A rotation mechanism 7 having an electric motor 71 connected to at least one of the plurality of electrode support members 6 by a belt 72, and this belt 72 also connected to at least one idle roller 73.

(d) The electrode for electrical discharge machining is constituted by the tubular hollow electrode 8 supported by each of the plurality of electrode support members 6 and having a pore 81 connected to the hollow hole 61.

[Effect]

In order to make it possible to simultaneously form a plurality of pores in one step using a rotating tubular hollow electrode system, the present invention requires (a) corresponding to the position of the pores to be formed; It is possible to arrange a plurality of rotary tubular hollow electrodes, and (c) it is possible to simultaneously supply machining fluid to the above rotary tubular hollow electrodes.

(d) In order to meet the requirements such as being able to rotate the above-mentioned rotary tubular hollow electrodes at the same time, it is possible to combine multiple rotary tubular hollow electrodes into a single structure as described above. The rotary tubular hollow electrodes are driven by a belt, and the flexibility of the belt is used to provide flexibility in selecting the position of each rotary tubular hollow electrode.

〔Example〕

The electrode for electric discharge machining according to the present invention will be further explained below with reference to the drawings.

In the drawings shown in FIG. 1, 1 is a main body of an electric discharge machine, and 2 is a workpiece, which is movable in the X-Y direction.

Reference numeral 3 denotes the Z axis, which drives the electrode support device 4 downward to send the electrode toward the workpiece 2. In this example, the electrode support device 4 also serves as a machining fluid storage tank, and the machining fluid is supplied through a machining fluid supply pipe 41. 5 is a plate-shaped member, and an electrode support device that also serves as a processing fluid storage tank is supported on the lower surface of 4;
It has a plurality of openings (not shown) communicating with the processing fluid reservoir. 6 is an electrode support member, which is supported by the plate member 5;
It has a hollow hole (not shown) that communicates with an opening (not shown) in the plate-like member 5, and is rotatable. A plurality of electrode support members 6 are provided. An electric motor 71 is supported by the plate member 5 and drives at least one of the electrode support members 6 and at least one idle roller 73 via a belt 72. These electric motors 71. The rotation mechanism 7 is composed of a belt 72, an idle roller 73, a pulley, and the like. A tubular hollow electrode 8 is supported by the electrode support member 6, has a pore communicating with a hole (not shown) in the electrode support member 6, and rotates together with the electrode support member 6.

Refer to FIG. 2. In order to further clarify the arrangement of each of the above-mentioned members, a view of the plate member 5 seen from below is shown.

The electrode support member 6 that supports the tubular hollow electrode 8 is provided in correspondence with the arrangement of the pores formed in the workpiece 2 . Since the function of the idle roller 73 is to cope with changes in the position of the electrode support member 6 using a single belt 72, it may be provided appropriately around the plate member 5.

Refer to FIG. 3. In order to further clarify the structure of the electrode support member 6, a sectional view thereof is shown. The machining fluid storage tank/electrode support device 4 is provided with a machining method outflow opening 42, and the root-like member 5
It communicates with the opening 51 of. Pores 6 are also provided in the electrode support member 6.
1 is provided, and this pore 61 communicates with the opening 51 of the plate member 5 and the pore 81 of the tubular hollow electrode 8 .

The electrode support member 6 is provided with a bearing 62, a ring 63, etc., and is rotatable in a watertight manner.

When performing electric discharge machining using an electric discharge machine having an electrode for electric discharge machining having the above structure, the electric motor 71 is operated to rotate the electrode support member 6 and the tubular hollow electrode 8 supported by it, At the same time, pressurize the machining fluid storage tank 4,
The machining fluid is supplied through the plurality of openings in the plate member 5, the hollow hole in the electrode support member 6, and the pores in the tubular hollow electrode 8, and the machining fluid is jetted out from the tip of the tubular hollow electrode 8.

When the electrode support device 4 supported by the Z-axis 3 is lowered in this state, all the tubular hollow electrodes 8 approach the workpiece 2 at the same time, and a plurality of pores are simultaneously formed in one process. Ru.

The position of each tubular hollow electrode of the electrode for electric discharge machining having the above structure is determined corresponding to the position of the opening provided in the plate member 5, so that it can be provided at any position, providing excellent flexibility.

〔Effect of the invention〕

As explained above, the electrode for electric discharge machining according to the present invention is
It has a plate-like member having a plurality of openings 51 communicating with a machining liquid storage tank, and a hollow hole supported by this plate-like member and communicating with each of the plurality of openings provided in this plate-like member, and is capable of rotary machining. A plurality of certain electrode support members are connected to at least one of the plurality of electrode support members with a belt,
The belt also includes a rotation mechanism having an electric motor connected to at least one idle roller, and a tubular hollow electrode supported by each of the plurality of electrode support members and having a pore connected to the inner hole. Since it is composed of
A plurality of pores can be formed simultaneously and in one step using electrical discharge machining. Moreover, the positions of these multiple pores can be arbitrarily selected.

[Brief explanation of drawings]

FIG. 1 is a structural diagram of an electrode for electric discharge machining according to an embodiment of the present invention. FIG. 2 is a view from below of a plate-like member of an electrode for electric discharge machining according to an embodiment of the present invention. Fig. 3 is a cross-sectional view of the electrode support member 61...9 electrical discharge machine body, 2... workpiece, 3 life/eZ axis, 4...
・Fist electrode support device (processing liquid storage tank), 41---processing liquid supply pipe, 5, Φ, plate-like member, 51φ, opening, 6, φ electrode support attachment, 81, pore, 6
2...bearing, 63...0 ring, 7.
・Rotation mechanism, 71φ, electric motor, ? 2---Belt, ? 3---Idle roller, 8Φ/tubular hollow electrode.

Claims (1)

[Scope of Claims] A plate-like member (5) having a plurality of openings (51) communicating with a machining liquid storage tank (4); and a plate-like member (5) supported by the plate-like member (5). a plurality of rotatable electrode support members (6) each having a hollow hole (61) that communicates with each of the plurality of openings (51) provided therein; and at least one of the plurality of electrode support members (6). and a belt (72), and this belt (72)
) is supported by a rotating mechanism (7) having an electric motor (71) also connected to at least one idle roller (73), and each of the plurality of electrode support members (6),
An electrode for electrical discharge machining, comprising a tubular hollow electrode (8) having a pore (81) connected to the inner hole (61).