JPS5833058B2 - Hoden Kakoukiyou Kakouekisouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container-shaped machining fluid device used when drilling a large number of holes with an electric discharge machine, and in particular, it relates to a container-shaped machining fluid device that is automatically moved to a desired position and used for machining. The present invention relates to a machining fluid device for an electrical discharge machine that is in close contact with a workpiece without fluid leakage.

Generally, when drilling a large number of holes with an electric discharge machine, a container-shaped machining liquid device (hereinafter referred to as a pot) is installed on the opposite side of the workpiece from the electrode in order to improve the accuracy of the hole drilling. The machining fluid supplied from the workpiece is flowed into the pot through the small holes of the workpiece to perform machining.

Conventionally, this type of machining method requires that the pot be manually moved to the machining area after each hole is completed, and machining fluid tends to leak if the ribs between adjacent holes are small in multi-cavity machining. Therefore, it took a lot of time to align the acupuncture points.

When machining multiple holes using conventional machining liquid equipment, the table must be moved each time the hole is completed, and at the same time, the pot must be manually moved to the part to be machined and aligned to the desired position. I had to.

In particular, when machining is performed by automatically moving the table, such as with an N/C electric discharge machine, the pot cannot be moved automatically because it is carried out in the sludge machining fluid. The table moves to the hole, applies the N/C stop, manually moves and positions the pot, and starts the process with an N/C start.

In this way, a lot of time is spent moving the pressure points, and
Fully automatic driving was not possible.

The present invention focuses on the above-mentioned drawbacks and provides a machining fluid device for an electrical discharge machine, in which the pot is moved up and down in conjunction with the movement of the table, so that the pot is always automatically placed in the machining area. It is something to do.

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 to 3, 1 is a hydraulically servo spindle, 2 is an electrode attached to the spindle, 3 is a multi-cavity workpiece, 4 is a head guiding the spindle 1, and 5 is a head. A mounting plate is attached to the mounting plate, 6 is a pot fixed to the mounting plate,
7 is a seal for bringing the pot 6 and workpiece 3 into close contact; 8
9 is a metal bellows for raising and lowering the pot; 10 is a hydraulic inlet for expanding and contracting the metal bellows;
Reference numeral 11 designates a table for placing a workpiece on the table, 12 a table, and 13 a processing tank.

First, the electrode 2 and the pot 6 are aligned and assembled.

When the first hole machining is started, hydraulic pressure is supplied to the metal bellows 9 to extend the metal bellows 9.

The pot 6 comes into close contact with the workpiece 3 via the gasket 7 and begins to flow the processing fluid.

By doing this, the adhesion between the pot 6 and the workpiece 3 is improved, and the machining fluid pressure is kept constant, increasing the stability of machining.

After finishing the machining, the metal bellows 9 contracts and separates the pot 6 from the workpiece 3.

After confirming this separation, the table 12 is moved and the next hole of the workpiece 3 is positioned below the electrode 2.

At this time, neither the electrode 2 nor the acupuncture point 6 moves, so there is no shift in relative position.

Therefore, the next processing can be started without manually moving the pot 6, which is essential for processing using a multi-piece pot.

It is particularly effective for N/C electrical discharge machining and labor-saving electrical discharge machines.

In the above description, a metal bellows is used to move the pot up and down, but the same effect can be obtained by using a device that moves up and down, such as a cylinder, instead of the metal bellows.

As described above, in this invention, since the acupuncture points are attached to the same area as the guide part of the main axis, there is no need to move the acupoints when moving the table, there is no time required for aligning the acupoints with the electrodes, and moreover, it is possible to fully automatically This enables processing using individual pots.

[Brief explanation of the drawing]

Figures 1a and b are front and side views showing the external structure of the machining liquid device for an electric discharge machine of the present invention, Figure 2 is a structural diagram of a pot used in the present invention, and Figure 3 is a diagram showing a large number of It is an external view of the workpiece for cutting. In the figure, 1 is the main shaft, 2 is an electrode, 3 is a workpiece, 4 is a head, 5 is a mounting plate, 6 is a pot, 7 is a gasket, 9 is a metal bellows, 11 is a mounting table, 12 is a table, and 13 is a It is a processing tank.

Claims (1)

[Claims] 1 In a machining fluid device for an electrical discharge machine that is provided on the opposite side of the workpiece to the electrode and has a container-like structure and passes the machining fluid, the fluid is supported by a fixed member such as a guide portion of the main shaft of the electrical discharge machine. A machining liquid device for an electric discharge machine having a structure having a vertical mechanism that closely contacts a workpiece during machining and lowers and separates from the workpiece when the table moves.