JPS6018260Y2 - Electrolytic processing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electrolytic processing apparatus that reduces the amount of metal bodies to be electrolytically processed.

Generally, the shape of the metal body 1 that is electrolytically processed is larger than the diameter or width of the hollow electrode 2, as shown in FIG.
Processing is performed using.

That is, the above processing is performed by applying a voltage to the hollow electrode 2 and the metal body 1 and flowing the electrolyte 3 from the inside of the hollow electrode 2 to the outside through the tip as shown by the arrow in the figure. A cylindrical or irregularly shaped electrolytically excavated cavity 4
They have started cutting out shapes to discipline them.

Note that 9 is a bottom plate for the metal body 1.No particular problem will occur if the cavity 4 as described above is formed over the entire circumference of the hollow electrode 2, but if a test piece is cut from a rolled steel material, for example. In this case, from the viewpoint of rolling yield, it is desirable that the diameter of the hollow electrode 2 and the width of the metal body 1 be the same as shown in FIG.

In addition, when the processing shown in FIG. 2 is performed, the metal body 1a to be removed is divided at the same time as the cavity 4 is formed up to the -E surface of the bottom plate 5, so it is tilted to cover the outer periphery of the hollow electrode 2 or to cover the lower part of the hollow electrode 2. There was a risk that the hollow electrode 2 would be damaged by contacting the land 2a.

The present invention was made to satisfy the above-mentioned demands and eliminate the runner-up problems, and its characteristics are as shown in the embodiments shown in FIGS. 3 and 4.
In an electrolytic core-leaving drilling machine that electrolytically excavates the metal body 1 while moving it close to the metal body 1 through a flowing film of the electrolytic solution 3, and forms a hollow metal piece of the electrode 2, the hollow part is a hollow electrode 2 formed so that a part of its inner peripheral edge can coincide with a part of the side end surface of the metal body 1; A recess 6a forming a cavity equal to the electrolytically excavated cavity, ? an insulating guide 6 which is detachably provided on the side end surface of the metal body 1;
．． 7.

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

In FIGS. 3 and 4, the insulating guide 6.7, which has a plurality of recesses 6at7a formed on the side in contact with the side surfaces of the metal body 1 approximately equally with the cavity 4a, holds the metal body 1 from both sides of the chifur 8. These are placed on the upper floor plate 9, but in this example, these are positioned using the positioning block 10 and positioning pin ``1'' that were previously provided on the table 8, and the corresponding clamp bolt 12 and metal body 1 are held down from above. It is configured to be fixed onto the table 8 with a clamp bolt (not shown).

In FIGS. 3 and 4, the same parts as in FIGS. 1 and 2 are given the same reference numerals.

Since the electrolytic processing apparatus of the present invention has the configuration as in the above example, the hollow electrode 2 is formed in the recess 6a in the guide 6. If the elongated metal body 1 is electrolytically applied by positioning the elongated metal body 1 between the guide 6.
, 7a, the electrolytic solution 3 forms an average electrolytic solution flow film over the entire circumference of the hollow electrode 2.
It flows out from the entire upper end opening of a and 6a.

Further, since the metal body 1a separated by the hollow electrode 2 is held by the portions 6b and 7b of the insulating guide 6.7, the metal body 1a will not tilt and damage the hollow electrode 2.

As described above, the present invention makes the diameter or width of the hollow electrode match the width of the long metal body, provides an insulating guide on the side surface of the metal body, and connects the insulating guide in the width direction of the metal body. Since a concave portion is provided on the side end face to form a cavity equal to the cavity 4a, there is no need for a material to be electrolyzed that is larger than the diameter or width of the hollow electrode as in the conventional method, so the amount of sampling from rolled steel materials can be reduced, for example. This makes it possible to always perform smooth electrolytic processing while preventing a decrease in yield.Also, since the metal body divided by the hollow electrode is held by an insulating guide, the metal body does not tilt. Therefore, the hollow electrode will not be damaged.

Furthermore, since the guides disposed on both sides of the metal body are insulating guides, the original shape is maintained without being electrolyzed, making it possible to use it repeatedly.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view showing the conventional electrolytic processing state, Fig. 2 (a) is a vertical cross-sectional view and a schematic plan view showing the electrolytic processing state of the present invention, and Fig. 3 is the electrolytic processing apparatus of the present invention. FIG. 4 is a longitudinal cross-sectional view showing the auxiliary device, and FIG. 4 is a cross-sectional view taken along the line ■-■ in FIG. 1...metal body, 2...hollow electrode, 4...
... Electrolytically dug cavity, 4a... Electrolytically dug cavity to be a non-exposed part, 4b... Electrolytically dug cavity to be an exposed part, 6゜7... Insulation Guide, 6a,
7a... Concavity.

Claims (1)

[Scope of utility model registration request] In an electrolytic core-leaving drilling device that electrolytically excavates a metal body while moving an open-tip hollow electrode close to the metal body through an electrolyte flow membrane to form a hollow-shaped metal piece of the electrode,
a hollow electrode formed so that a part of the inner periphery of the hollow portion can coincide with a part of the side end surface of the metal body; an electrolytically dug cavity formed in the metal body opposite to a part of the side end face of the metal body; An electrolytic processing apparatus characterized in that the electrolytic processing apparatus has a concave portion that forms a uniform cavity, and is provided with insulating guides that are removably attached to the side end surfaces of the metal body.