JPH0463628A - Electrode jig for electropolishing - Google Patents

Abstract

PURPOSE:To concurrently perform chemical polishing and polishing with abrasive grains by providing many holes on a stainless pipe as passing holes of an electrolyte, and winding a nonwoven fabric stuck with abrasive grains around it. CONSTITUTION:An insulating tape 2 is wound around a stainless steel bar 1, a stainless pipe 3 having a diameter larger than that of the steel bar 1 and bored with many holes 4 on the whole periphery of its side face is fitted at one end of the steel bar 1, a synthetic fiber nonwoven fabric 5 stuck with abrasive grains is wound on the side face of the pipe 3, an adhesive is coated on its surface, and a stiff thread 6 such as a silk gut thread is wound on it and fixed. An electrode jig is rotated as shown by an arrow B, an electrolyte A is fed into the pipe 3 as shown by arrows and discharged to the outside through many holes 4, and a machining surface is polished via the nonwoven fabric 5. Since abrasive grains are stuck on the nonwoven fabric 5, the polishing function by abrasive grains is provided in addition to the polishing function by the electrolyte A, the work efficiency is improved, and the machining surface can be finished into a mirror-shaped smooth surface.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an electrode jig for electrolytic polishing.

[Conventional technology]

Conventionally, this type of electrode jig for electrolytic polishing is not only a chemical polishing method that simply flows an electrolytic solution onto the surface to be processed, but also has a complex electrode shape that makes it difficult for the electrolytic solution to flow, making it difficult to polish the desired surface. was not obtained.

[Problem to be solved by the invention]

The present invention was developed to improve such conventional electrolytic polishing means, and uses a stainless steel pipe provided with many holes as an electrode, and uses the holes as holes for electrolyte to pass through. By winding a nonwoven fabric with abrasive particles attached around it, chemical polishing and abrasive polishing can be performed simultaneously.

[Means to solve the problem]

Therefore, the electrolytic solution flows radially in all directions through the many holes provided in the electrode, and the polishing effect is improved by the polishing action of the abrasive grains attached to the nonwoven fabric.

[Effect]

Therefore, by using the electrode jig of the present invention, the surface of the workpiece is finished in a mirror-like finish, and processing effects not seen in conventional electrolytic polishing can be obtained.

〔Example〕

The electrode jig for electrolytic polishing of the present invention will be explained with reference to the accompanying drawings. Fig. 1 shows the t8F! of the present invention. FIG. 2 is a front view showing the electrode portion, and FIG. 2 is a sectional view showing the internal structure of the electrode portion. FIG. 3 is an explanatory diagram showing the flow of electrolyte.

In the figure, (1) is a jig, which is a rod-shaped body made of stainless steel, around which an insulating tape (2) is wrapped. At one end of this steel rod (1), there are many holes (
4) Attach a stainless steel pipe (3) with a larger diameter than the steel rod (1).

In addition, a synthetic resin non-woven fabric (5) with abrasive grains attached is wound around the circumferential side of the pipe (3), a small amount of adhesive is applied thereon, and a strong thread (6
) is roughly wrapped and fixed.

When processing the electrode jig for electrolytic polishing of the present invention, referring to FIG. The nonwoven fabric (
5), but in the present invention, since the abrasive grains are attached to the nonwoven fabric, the abrasive grains have a grinding action in addition to the polishing action of the electrolytic solution, which improves work efficiency. It has good polishing properties and continuous polishing is possible.

〔effect〕

When using a processing method using a polar jig for electrolytic polishing of the present invention, the surface of the product is polished by passing a (+) current to the product side and a (-) current to the electrode side as described above. By melting and then flowing an electrolytic solution, the processed surface is eroded by the acid solution, and at the same time it is ground with abrasive grains.This process is repeated continuously, and the polishing efficiency is extremely high.
Furthermore, the machined surface is finished with a mirror-like smooth surface, which is an innovative effect not seen in conventional electrolytic polishing.

[Brief explanation of drawings]

FIG. 1 is a front view of the present invention, FIG. 2 is a sectional view showing the internal structure, and FIG. 3 is an explanatory diagram showing the flow of electrolyte. (1)...Stainless steel rod, (2)...Insulating tape, (3)...Pipe, (4)...Hole, (5)...
Non-woven fabric, (6)... Thread Figure 1 Figure 3

Claims (1)

[Claims] 1. From the steel rod (1), an insulating tape (2) is wrapped around the stainless steel rod (1), and a number of holes (4) are drilled at one end of the steel rod (1) around the entire circumference of the side surface. A large-diameter stainless steel pipe (3) is attached, a synthetic fiber nonwoven fabric (5) with abrasive grains attached is wound around the side of the pipe (3), and an adhesive is applied to the surface of the pipe (3). An electrode jig for electrolytic polishing characterized by a strong thread (6) such as Tegus thread wrapped around and fixed.