JPS62282825A - Electric discharge machine - Google Patents

Abstract

PURPOSE:To attach an electrode and a workpiece both to a table without entailing any damage to the top as well as to aim at dispensing with any special jig at the time of diagonal machining and a crane at the time of carrying in a machine, by installing such a function that automatically tilts a head alone, in an electric discharge machine. CONSTITUTION:Setting the hinge 11 attached to a head 3 and a column 5 down to a fulcrum, the whole body of the head 3 is tiltable (see 3a in illustration) by drive of a cylinder 10, and if this tilting is stopped at an optional spot, the head 3 can be clamped at the optional position. And, at the time of setting an electrode 2, if the head 3 is tilted rearward, a setting surface and a mounting hole both come to the front whereby work can be done easily, and if some part is dropped by mistake, no damage is goven to a table top, and setting of a workpiece 1 to the table top is also easy to be done because the electrode 2 and the head 3 are nothing in the upper part of a table 4. Furthermore, at the time of machining, the head 3 body is tilted to some extent whereby a special electrode and a special jig are all no longer required and, what is more, even in case of a carrying-in port and a ceiling being low, the head 3 body is tilted whereby crane work is omissible.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an electrical discharge machining device, and more particularly to an improvement of the head portion of the device.

[Conventional technology]

In electric discharge machining, an insulating liquid (hereinafter referred to as machining liquid) is stored in a machining tank and the workpiece is immersed in it.
Ka++n 7 A Yuzushi Small Opening R-Snow Breaking Rokuto is a good thing, but recently the direction of electric discharge machining has increased not only vertical machining and horizontal machining, but also special machining such as diagonal machining. It's coming. For this reason, manufacturing of special electrodes and special jigs are required, and the mounting of the electrodes and the special mounting work on the table are increasing.

FIGS. 3 and 4 are side views showing the relationship between the electrode, workpiece, and head of such a conventional apparatus. In the figure, (1
) is the workpiece, (2) is the electrode, (3) is the head to which electrode (2) is attached, (4) is the table, (5) is the column, (
6) is a bolt that tightens the head (3) to the column (5);
(7) is a machining tank, (8) is a machining fluid, and (9) is a special jig.

As shown in the figure, the head (3) is attached to the front surface of the column (5) via bolts (6), and the electrode (2) is attached to the underside of this head (3), not shown in the figure. It moves up and down by a drive device. In addition, the workpiece (1) placed on the top surface of the table (4), the machining tank (7) and the machining fluid (8) assembled on the table (4) are moved forward, backward, left and right by a drive device (not shown). Can be moved.

In addition, for special machining such as diagonal machining, table (
4) Attach the special jig (9) to the top surface, and then attach the special jig (
The workpiece (1) was set on the slope of 9) and processed. Furthermore, when moving the equipment, if the entrance or ceiling of the building is low, as shown in Figure 5, suspend only the head (3) with a crane, lay it down on its side, tighten it with bolts (6), and transport it on its side. I was going.

(Problems to be Solved by the Invention) In the conventional device described above, as shown in FIG.
There were many problems with the top surface being damaged.

Also, during diagonal machining, the special jig (9) table (
4) and then the workpiece (1) was attached to the surface of this special jig (9), causing parts to fall and damaging the table top surface. Additionally, when moving the equipment, if the entrance and ceiling of the building were low, crane work was required to tilt the head sideways.

The present invention has been made to solve the above-mentioned problems, and allows the electrode to be attached without damaging the top surface of the table. Even during diagonal machining, the workpiece can be set with a simple operation, and the equipment can be moved easily. The purpose is to eliminate the need for crane work even when the building entrance and ceiling are low.

[Means for solving problems]

The present invention has been made in order to solve the above-mentioned problems, and provides an electric discharge machining apparatus having a function of automatically tilting only the head body.

(Function) In the present invention, by providing a device that can automatically tilt the head, the electrode can be mounted at a position other than the table top surface, making it easy to install, and special electrodes and special jigs are not required during oblique machining. Furthermore, even if the entrance and ceiling of the building are low when moving the equipment, crane work can be omitted by tilting the head body.

(Embodiment of the invention) Figures 1 and 2 show an embodiment of the present invention.
The figure is a side view showing the relationship between the head and other parts, and FIG. 2 is a view of the main parts of the machining during diagonal machining.

In Fig. 1, (1) to (8) are the third
Since it is exactly the same as the figure, the explanation will be omitted.

OQ is a driving hydraulic cylinder for automatic tilting.The main body is attached to the rear of the column (5), and the rod side is attached to the rear of the head (3). ) The entire structure can be tilted (3a). Further, by stopping the drive of this hydraulic cylinder OQ at a certain arbitrary position, the head (3) can be fixed at an arbitrary position.

In the present invention configured as described above, by tilting the head (3) backward when attaching the electrode (2), the mounting surface and the mounting hole will come out to the front, making the work easier. The workpiece (1) can be easily attached to the table top surface because the electrode (2) and head (3) are not above the table (4). Even at times, special electrodes and special jigs are not required by tilting the head (3) body.Furthermore, crane work can be omitted in areas where the entrance and ceiling are low.

It should be noted that although the above embodiments have been described with respect to an electric discharge machining device, it goes without saying that the present invention can also be applied to machining devices of other machine tools. Further, in the above embodiment, a hydraulic cylinder drive was explained, but an electric drive or other drive device may be used, and the same effects as in the above embodiment can be obtained.

(Effects of the Invention) As described above, the present invention provides a device that can tilt the entire head, thereby making it easy to attach the electrode and the workpiece, and eliminating the trouble of damaging the top surface of the table. In addition, during diagonal machining, special electrodes and special jigs are not required, making the work easier. Furthermore, there is no need for crane work when transporting machinery, resulting in improved work efficiency and greater safety.

[Brief explanation of drawings]

FIGS. 1 and 2 show an embodiment of the present invention, with FIG. 1 being a side view and FIG. 2 being an explanatory view showing the main machining equipment. In the figure, (1): workpiece, (2): electrode, (3):
Head, (4): Table, (5): Column, (6):
Bolt, (7): Processing tank, (8): Processing fluid, (9): Special jig, OQ: Hydraulic cylinder, (1υ: Hinge. In addition, the same reference numerals in each figure indicate the same or equivalent parts. Agent Patent Attorney Masaru Sato Year 3 Head ``3CI'?Electricity at Wi in

Claims (2)

[Claims] (1) An electric discharge machining apparatus that performs machining by generating electric discharge between opposing electrodes and a workpiece, which is characterized by being provided with a function of automatically tilting only the head. (2) The electric discharge machining apparatus according to claim 1, wherein a hydraulic cylinder is interposed between the column and the head.