JPS6284923A - Wire-cut electric discharge machine - Google Patents

Abstract

PURPOSE:To make a dielectric machining fluid tube relatively small sized by supporting a Z-axis drive mechanism for moving an electrode in vertical directions by means of a U-V-axes drive mechanism for moving the electrode within horizontal surface and further by means of a column. CONSTITUTION:A Z-axis drive mechanism 2 for moving a machining electrode 4 in vertical directions is supported by a component 12 for moving the electrode 4 within a horizontal surface and by a U-V-axes drive mechanism 1 consisting of a component 11 for moving in direction s perpendicular to that of the component 12. The U-V-axes drive mechanism 1 is supported on the left end surface of a column 5 which constitutes a main body of a wire-out electric discharge machine. With this constitution, the size of a dielectric machining fluid tub can be made relatively small. As a result, overall size of the wire-cut electric discharge machine need not be large, visibility of a machining electrode and machining area is sufficiently secured to improve workability, and excellent machining accuracy can be retained even if pressure of dielectric machining fluid are increased.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a wire-cut electrical discharge machine.

In particular, the present invention relates to improvements in wire-cut electric discharge machines having a taber machining function.

[Conventional technology]

Wire car /) In an electric discharge machine, the wire electrode is held in a vertical direction and the workpiece is moved in a horizontal plane to machine the workpiece into a desired planar shape. In addition to the above, the cut electrical discharge machine and the support device for one side (upper or lower) of the wire electrode can be moved in a horizontal plane to tilt the wire electrode, making it possible to perform three-dimensional machining on the workpiece. Add the taber to
There is a type wire cut electrical discharge machine.

In the conventional Taper machining type wire-cut electrical discharge machine, as shown in FIG. ! The lJ mechanism l is supported by a Z-axis drive mechanism 2 that moves the electrode in the vertical direction. While the Z-axis drive mechanism is essential for wire-cut electrical discharge machines, the UV @ drive mechanism is not necessarily essential, so this structure is advantageous for mass-producing wire-cut electrical discharge machines. .

[Problem that the invention seeks to solve]

However, a machining liquid tank 3 is essential for an electric discharge machine, and in a wire car/discharge machine, this machining liquid tank 3 is arranged so as to surround a machining electrode 4, as shown in FIG. .

Therefore, in the conventional wire-cut electric discharge machine in which the UV-axis drive mechanism 1 is supported by the Z-axis drive mechanism 2, the machining liquid tank 3 has to become larger. This causes the size of the entire processing machine to become unnecessarily large, and this drawback is extremely noticeable when the allowable taper angle is large. In addition to this drawback, U-V
In addition to impeding work efficiency due to the presence of the shaft drive mechanism, increasing the injection pressure of machining fluid may cause elastic deformation of the U-V axis drive mechanism and Z-axis drive mechanism, which may adversely affect machining accuracy. This is a difficult drawback.

The purpose of the present invention is to eliminate these drawbacks,
(a) The size of the machining liquid tank can be made relatively small, (b) As a result, there is no need to unnecessarily increase the overall dimensions of the wire-cut electric discharge machine, and (c) Machining of the tip of the machining electrode It is an object of the present invention to provide a wire-cut electric discharge machine which has a sufficient area within the field of view of the operator, has good workability, and (d) can maintain excellent machining accuracy even when machining fluid pressure is increased.

[Means for solving problems]

The means taken by the present invention to achieve the above object is to support the Z-axis drive mechanism 2 that moves the electrode in the vertical direction with the UV-axis drive mechanism 1 that moves the electrode in a horizontal plane, This U-v axis drive mechanism 1 is supported by a column 5 forming the main body of a wire-cut electrical discharge machine.

[Effect]

The reason for the above drawback is that the UV axis drive mechanism is supported by the Z axis drive mechanism. By the way, as mentioned above, the reason for such a structure is to facilitate standardization on the premise of mass production, and the above structure is not originally a functionally essential requirement.Therefore, the present invention This structure is reversed and the Z-axis drive mechanism is supported by the U-v axis drive mechanism, resulting in (a) preventing the machining liquid tank from becoming large; and (b) ) Wire car / ) Prevents the entire electrical discharge machine from becoming unnecessarily large +
hL, (c) workability is improved, and (d) machining accuracy is prevented from decreasing even if the injection pressure of machining fluid is increased.

〔Example〕

Hereinafter, six embodiments of the present invention will be further described with reference to the drawings.

l Top 1 In the drawing shown in FIG. 1C, 5 is a column, which in this example extends from the right to the left. 1 is a UV axis drive mechanism, which is supported on the left end vertical surface of the column 5 and consists of a portion 11 that moves in a direction perpendicular to the plane of the paper and a portion 12 that moves in a direction parallel to the plane of the paper in the figure. 2 is a Z-axis drive mechanism, and U-
The electrode 4 is supported by the side surface of a portion 12 of the V-axis drive mechanism 1 that moves parallel to the plane of the paper.

In the reference diagram shown in FIG. 1, 5 is a column, on the lower surface of which the UV axis drive mechanism 1 is supported, and a paper surface provided on the lower surface of a portion 12 that moves parallel to the paper surface of the UV axis drive mechanism 1. A Z-axis drive mechanism 2 is supported on the side surface of the portion 11 that moves in a direction perpendicular to .

In the drawing shown in FIG. 1C, 5 is a column, on the upper surface of which a UV-axis drive mechanism 1 is supported, and on the side surface of a portion 11 of the UV-axis drive mechanism 1 that moves perpendicularly to the plane of the drawing, a Z-axis drive is supported. aa2 is supported.

In the drawing shown in FIG. 1C, reference numeral 5 denotes a column, on the side of which a part 12 of the UV-axis drive mechanism 1 that is parallel to the plane of the paper is supported, and a part 11 of the UV-axis drive mechanism 1 that is perpendicular to the plane of the paper is supported. A Z-axis drive mechanism 2 is supported on the side.

In the drawing shown in FIG. 1C, reference numeral 5 denotes a column, on the lower surface of which a portion 12 of the UV axis drive mechanism 1 parallel to the plane of the paper is supported, and the Z axis drive mechanism 2 Part 11 perpendicular to the paper surface
Further, this Z-axis drive mechanism 2 is bent so that the electrode 4 is located almost directly below the column 5. In this example, even when the machining fluid pressure is high, the electrode support mechanism is elastically deformed and the machining accuracy is not impaired.

1f, reference numeral 5 denotes a column, on the lower surface of which is supported a portion 2 of the U-V axis drive mechanism 1 parallel to the plane of the paper, and the Z-axis drive mechanism 2 is connected to the U-V axis drive mechanism l. The part 11 perpendicular to the paper surface of
is supported on the underside of the This example is also effective in maintaining machining accuracy when the machining fluid pressure is increased.

〔Effect of the invention〕

As explained above, the wire-cut electrical discharge machine according to the present invention has a Z-axis drive mechanism that moves the electrode in the vertical direction.
The electrode is supported by a UV axis drive mechanism that moves it in a horizontal plane, and this UV axis drive mechanism is supported by the column 5 that forms the main body of the wire-cut electric discharge machine. ) The size of the machining liquid tank can be made relatively small, (b) As a result, there is no need to unnecessarily increase the wire force and the overall dimensions of the cutter, and (c) The tip of the L main pole and the pressurized area are sufficiently within the field of view of the N for work, resulting in good workability, and (d) excellent machining accuracy can be maintained even when the machining fluid pressure is increased.

[Brief explanation of drawings]

FIGS. 1a, b, c, d, e, and f are structural diagrams showing an electrode support mechanism of a wire-cut electrical discharge machine according to an embodiment of the present invention. FIG. 2 is a structural diagram of a wire-cut electrical discharge machine according to the prior art. 1---U-V axis drive mechanism, 1l---A portion of the U-V axis drive mechanism that moves perpendicular to the plane of the paper, 12... A portion of the U-V axis drive mechanism that moves parallel to the plane of the paper, 2. 1. Z-axis drive mechanism, 3.1 processing liquid tank. 40-Processing electrode, 5th column.

Claims (1)

[Claims] A Z-axis drive mechanism (2) that moves the electrode in the vertical direction is supported by a UV-axis drive mechanism (1) that moves the electrode in a horizontal plane, and the UV-axis drive mechanism ( 1) is a wire-cut electrical discharge machine supported by a column (5) forming the main body of the wire-cut electrical discharge machine.