JP5387895B2 - Electrodeposition abrasive wire tool production method and electrodeposition abrasive wire tool production apparatus - Google Patents

Description

  The present invention relates to a method for producing an electrodeposited abrasive wire tool and an apparatus for producing an electrodeposited abrasive wire tool.

  In recent years, solar cells as clean energy and LEDs as power saving have attracted attention. Solar cells use a silicon substrate, and LEDs use a sapphire substrate. Silicon, sapphire, quartz, glass, ceramics, etc., which are the base materials for these electronic materials, are also called hard brittle materials, are hard and easily cracked, and are particularly difficult to cut, such as cutting an ingot into a wafer. . Therefore, as a cutting tool for the hard brittle material, abrasive grains are fixed (adhered) to the surface of a single wire (or stranded wire) of a metal wire made of piano wire (high carbon steel wire), stainless steel wire, tungsten wire or the like. Fixed abrasive wire tools are used. The types of abrasive grains include brown alumina abrasive grains (A), white alumina abrasive grains (WA), single crystal alumina abrasive grains (HA), black silicon carbide abrasive grains (C), and green silicon carbide grains. Abrasive grains (GC), zirconia alumina abrasive grains (Z), diamond abrasive grains, CBN (Cubic Boron nitride) and the like can be mentioned.

In the fixed abrasive wire tool, it is necessary to fix the abrasive grains uniformly at a predetermined density on the surface of the continuous long wire. As an adhering method for adhering abrasive grains to a metal wire surface, a resin coating method and an electrodeposition method are known. The resin coating method is a method of fixing (adhering) the abrasive grains to the wire surface using a resin as an adhesive. The abrasive grains can be fixed to the wire in a short time, but the adhesive strength of the abrasive grains is weak because the resin is soft. It is not reliable.
In the electrodeposition method, abrasive grains are dispersed in a plating solution to form a mixed solution (suspension), and electroplating is performed in this suspension to deposit a metal such as nickel or cobalt on the surface of the wire. This is a method for fixing (electrodepositing) the grains to the wire surface, and has a strong adhesion of abrasive grains and high reliability. On the other hand, in order to electrodeposit abrasive grains, it is necessary to deposit the plating for a predetermined time, and it takes time to deposit the plating, and there is a problem that the manufacturing time of the wire tool becomes long.

  As a manufacturing method (manufacturing apparatus) for electrodepositing abrasive grains on a wire surface by an electrodeposition method, Patent Documents 1 to 3 are publicly known. Further, the applicants of the present application have been intensively researching a production method for shortening the production time of a wire tool while making use of the strong adhesion force and high reliability of the abrasive grains to the wire by the electrodeposition method (Non-patent Document 1). 2).

  FIG. 18 is a diagram illustrating an electrodeposited abrasive wire tool, where (a) is a side view and (b) is a cross-sectional view taken along line AA. The electrodeposited abrasive wire tool is a tool in which, for example, abrasive grains (diamond abrasive grains) 203 are electrodeposited on the surface of a wire (piano wire) 201 by a plating layer (nickel plating layer) 205.

JP 2006-55952 A JP 2006-181701 A JP 2006-110703 A

Hitoshi Suwabe, Hironori Kinoshita, Kenichi Ishikawa: Development and processing characteristics of fine diamond wire tools, Journal of Abrasive Technology, (2007), 351-357 Kenichi Ishikawa, Hitoshi Suwabe, Yoshihiro Nakamura: Research on high-speed production of diamond electrodeposition wire tools by flowing water electrodeposition, 2005 Precision Engineering Autumn Meeting, (2005), pp. 1059-1060

According to the above electrodeposition method, since it takes time to deposit the plating, the length of the plating tank is several meters to several tens of meters or more in order to electrodeposit abrasive grains on the surface of a continuous long wire. A large plating tank is required.
For this reason, for example, in the method for manufacturing an electrodeposited abrasive wire tool described in Patent Document 1, a wire is stretched around pulleys arranged at a predetermined interval, and arranged in a zigzag shape, so that the wire in the plating tank is arranged. The route is lengthened.
However, in the manufacturing method described in Patent Document 1, the abrasive grains dispersed in the plating solution are precipitated (sedimented) on the bottom of the abrasive electrodeposition tank over time. Further, since the plating solution is in a non-flowing state, a cathode diffusion layer is generated in the vicinity of the wire surface several seconds after the plating solution is energized, and the fixing efficiency of the abrasive grains decreases. In other words, since the plating is deposited on the wire surface in the electric double layer near the wire surface, the concentration of metal ions decreases as the wire surface is approached. Concentration gradient (concentration polarization) occurs in the wire, and the reaction with metal ions on the wire surface deteriorates. As a result, the deposition amount of plating decreases, and the electrodeposition efficiency of abrasive grains decreases with time.

In the method of manufacturing the electrodeposition abrasive wire tool described in Patent Document 2, the entire surface of the abrasive grains is metal-coated in advance, and the metal-coated abrasive grains are electrodeposited on the wire. We are trying to shorten it.
However, in the manufacturing method described in Patent Document 2, since the entire surface of the abrasive grains is coated with metal, when using an electrodeposited abrasive wire tool, the working surface of the wire tool on a workpiece such as silicon An operation (so-called dressing operation) for removing the surface metal coat and exposing a part of the abrasive grains to be cut is essential.

Patent Document 3 is an invention that was filed and put into practical use by the applicants of the present application. The patent document 3 includes a hollow tube that allows a mixed solution in which abrasive grains are dispersed in a plating solution to flow out in one direction. By causing the wire to run in the same direction as the outflow direction and electrodepositing abrasive grains on the surface of the wire inside the hollow tube, it is possible to uniformly fix the abrasive grains to the wire at a predetermined density. It is a thing. That is, by imparting fluidity to the plating solution in the vicinity of the wire surface, the growth of the cathode diffusion layer can be suppressed and the replenishment of metal ions can be facilitated, so that the plating deposition rate is improved.
However, in the manufacturing method described in Patent Document 3, since the length of the hollow tube cannot be set so long, there is a limit to producing a wire tool by the electrodeposition method at high speed.

  In view of these above-mentioned problems, the applicants of the present invention have intensively studied a method of electrodepositing abrasive grains on a wire by an electrodeposition method without using the hollow tube, and as a result, precipitated abrasive grains in a plating solution. The idea was that the wire was passed through the deposited abrasive grain deposit, the current was passed while the wire was filled with the abrasive grain deposit, and the abrasive grains were fixed to the wire. In this method, since the current is applied while the wire is filled with abrasive precipitates, the abrasive can be reliably electrodeposited on the surface of the wire, but the time until the plating is deposited is not moved. Since it has to be fixed, the production time becomes very long. In addition, the accumulated abrasive precipitates are compacted over time, so if you continue to pass the wire through the accumulated abrasive precipitates, tunnel-shaped side holes are formed, and uneven electrodeposition of the abrasive grains occurs. As a result, it was found that a portion where the abrasive grains were not electrodeposited was formed, and the abrasive grains could not be electrodeposited uniformly at a predetermined density on the surface of the wire. Further, when the plating solution in the vicinity of the wire surface is in a non-flowing state, the above-mentioned cathode diffusion layer is generated, and there is a conventional problem that the electrodeposition efficiency of the abrasive grains decreases.

  Accordingly, an object of the present invention is to provide a method and an apparatus for producing an electrodeposited abrasive wire tool that can be electrodeposited in a short time by increasing the electrodeposition efficiency of abrasive grains, and the size of the apparatus can be easily reduced. It is in.

The method for producing the electrodeposition abrasive wire tool of the present invention is such that a suspension comprising a plating solution and abrasive grains is supplied to an abrasive electrodeposition tank by a liquid supply pump, and a rotation disposed in the abrasive electrodeposition tank. Abrasive grains are allowed to settle on a flange formed below the drum drum tank to create an abrasive pool, and a wire is placed along a conveying roller arranged upright at predetermined intervals on the flange, and the abrasive is A wire is put into the grain reservoir, and the wire is wound around by a wire winder, while the wire is circulated on the collar portion, the rotary drum tank is rotated by the driving means, and the wire and the abrasive being circulated are rotated. It is characterized in that the abrasive grains are electrodeposited on the wire surface by energizing between the anode electrode arranged in the grain electrodeposition tank.
The electrodeposition abrasive wire tool manufacturing apparatus of the present invention includes an abrasive electrodeposition tank, a rotary drum tank disposed in the abrasive electrodeposition tank and rotated by driving means, and plating in the abrasive electrodeposition tank. A liquid supply pump that supplies a suspension of liquid and abrasive grains, an anode electrode disposed in the abrasive electrodeposition tank, a transport roller that runs along the wire, and a wire winder that winds the wire, Abrasive grains are allowed to settle on a flange formed below the rotary drum tank to create an abrasive grain reservoir, and a wire is placed along a conveying roller arranged upright at predetermined intervals on the flange. A wire is put into the abrasive grain reservoir, and the wire is wound around by the wire winder, and the wire drum is run around on the collar portion. And the anode electrode placed in the abrasive electrodeposition bath to energize the wire surface Wherein the electrodepositing particles.

In these inventions, abrasive grains are precipitated on a collar formed below the rotary drum tank to form an abrasive grain reservoir, and a conveying roller disposed upright at predetermined intervals on the collar. Put the wire along the wire into the abrasive grain reservoir, wind the wire around the saddle by winding the wire with a wire winder, rotate the rotary drum tank with the driving means, A current is passed between the wire running around and the anode electrode arranged in the abrasive electrodeposition tank, and the abrasive grains are electrodeposited on the wire surface. That is, according to the present invention, while the wire is circulated, the collar portion is circulated, so that the wire is energized while maintaining the state in which the wire is buried in the abrasive grain reservoir, and the abrasive particles are securely attached to the wire. Electrodeposit on the surface.
Then, as the wire and the collar portion run around, the plating solution in the vicinity of the wire surface becomes a fluid state, the generation of the cathode diffusion layer is suppressed, and the electrodeposition efficiency of the abrasive grains is increased.

The said conveyance roller is a wire conveyance component comprised from the shaft part fixed to the said collar part, and the roller distribute | circulated rotatably on the outer periphery of this shaft part.
As a material of the roller constituting the conveying roller, a plastic having high slidability, excellent insulation, and chemical resistance is preferable. Examples of the roller material include polyethylene, polyacetal, fluororesin, and phenol resin. By applying grooves to the rollers at predetermined positions on the outer circumference of the rollers, and placing the wires along the grooved portions of the rollers, it is difficult for the wire orbits to deviate from the predetermined positions. In order to improve the slidability of the roller, a sliding member such as a bearing may be incorporated inside the roller.

Examples of the circular trajectory for circulating the wire include a circular trajectory (elliptical trajectory), a spiral trajectory, an 8-shaped trajectory, and an S-shaped trajectory (reverse S-shaped trajectory).
FIG. 13 is a diagram illustrating a wire orbit in an abrasive electrodeposition bath to which the present invention is applied, where (a) is a circumferential orbit, (b) is a spiral orbit, and (c) is 8 (D) illustrates an inverted S-shaped trajectory. For example, if the circular orbit is a circular orbit (FIG. 13A), it is easy to circulate by putting a wire in the abrasive grain reservoir in the suspension. For example, if the circular trajectory is a spiral trajectory (FIG. 13B), the circular distance of the wire is further increased. For example, if the circular trajectory is an 8-shaped trajectory (FIG. 13C) or an inverted S-shaped trajectory (FIG. 13D), the direction of the wire is reversed in the course of the wire, so that the wire and the transport roller Since the contact position is reversed, it is easy to put the entire circumference of the wire into the abrasive pool.

  The present invention is characterized in that the wire and the eaves are caused to travel around the metal substantially simultaneously. Further, the present invention is characterized in that the wire winder and the driving means are operated synchronously.

  According to the present invention, by causing the wire and the collar portion to run around at the same time, the waste of the wire is reduced, and the abrasive is efficiently electrodeposited on the wire. By synchronously operating the wire winder and the driving means, the electrodeposition of abrasive grains is started when the winding of the wire is started, and the electrodeposition of abrasive grains is stopped when the winding of the wire is stopped. So there is less waste of wire.

  The present invention is characterized in that the circumferential speed of the flange is set to a speed substantially equal to the circumferential speed of the wire. In the present invention, for example, the wire winder also serves as the driving unit, and the circumferential speed of the flange portion and the circumferential speed of the wire are slightly different by a timing belt.

According to the present invention, the difference in the relative speed between the wire and the abrasive grain pool is made small by setting the circumferential speed of the collar portion to a speed substantially equal to the circumferential speed of the wire. Accordingly, the relative position between the wire and the abrasive grain reservoir does not change so much until the plating is deposited, and the abrasive grains are reliably electrodeposited on the surface of the wire in a stable state.
For example, the wire winder also serves as the driving means, and the contact position where the wire comes into contact with the transport roller by slightly varying the circumferential speed of the flange and the circumferential speed of the wire by a timing belt. Will shift slightly, and the abrasive can be uniformly electrodeposited without unevenness.

  The present invention is characterized in that a fixed drum tank is concentrically arranged on the outer side of the flange portion, and the wires cross three-dimensionally at a wire entrance to the rotary drum tank provided in the fixed drum tank. . In the present invention, a fixed drum tank is concentrically arranged on the outer side of the flange portion, and the wire entrance height and the wire take-out height at the wire entrance to the rotary drum tank provided in the fixed drum tank. It is characterized by making it different.

Examples of the shape of the abrasive electrodeposition tank include a drum shape (cylindrical shape), an annular shape, a rectangular parallelepiped shape, a bathtub shape, and a reverse cone shape (funnel shape).
According to the present invention, the size of the abrasive electrodeposition tank is minimized by the concentric arrangement of the fixed drum tank outside the collar portion. The wires do not come into contact with each other at the wire entrance / exit to the rotary drum tank provided in the fixed drum tank, so that the wires do not come into contact with each other, so that the electrodeposited abrasive grains fall off from the wire. There is no worry.
For example, at the wire entrance / exit to the rotary drum tank provided in the fixed drum tank, the wire take-out height is set slightly higher than the wire entry height, and the wire is inserted from the wire entrance / exit, Is wound around the outer periphery of the conveying roller arranged upright on the collar and the wire enters the abrasive grain reservoir. Then, when the wire is taken out from the wire entrance / exit, the wire is separated from the outer periphery of the transport roller toward the outside of the flange portion, so that the abrasive pool is broken. Therefore, each time the rotary drum tank makes one turn, the abrasive grain pool is destroyed, so that it is possible to prevent uneven electrodeposition of the abrasive grains and places where the abrasive grains are not electrodeposited. Can be uniformly electrodeposited.

  The present invention is characterized in that the liquid supply pump periodically supplies the suspension along an inner wall of the fixed drum tank. In the present invention, for example, the liquid supply port of the liquid supply pump is disposed toward the inner wall of the fixed drum tank, and the liquid supply pump is disposed in the fixed drum tank each time the rotary drum tank rotates a predetermined amount. The suspension is supplied along the inner wall.

  According to the present invention, the liquid supply pump periodically supplies the suspension along the inner wall of the fixed drum tank, so that the abrasive pool is periodically formed. It is possible to prevent electrodeposition unevenness and a portion where abrasive grains are not electrodeposited. For example, the liquid supply port of the liquid supply pump is arranged toward the inner wall of the fixed drum tank, and the liquid supply pump is moved along the inner wall of the fixed drum tank every time the rotary drum tank rotates a predetermined amount. By supplying the suspension, the abrasive pool is made every predetermined rotation of the rotary drum tank. If the liquid supply pump supplies the suspension along the inner wall of the fixed drum tank every time the rotary drum tank makes one revolution, the wire once breaks out of the abrasive grain reservoir. The abrasive pool is immediately reformed.

  According to the present invention, through holes are formed at predetermined intervals on the lower side surfaces of the rotary drum tank and the fixed drum tank, respectively, and a plating solution is additionally supplied from above the rotary drum tank to The abrasive grains deposited on the bottom of the drum tank are discharged together with the plating solution. In the present invention, for example, through holes are formed at predetermined intervals on the lower side surfaces of the rotary drum tank and the fixed drum tank, respectively, and a plating solution is additionally supplied from the inner side of the rotary drum tank. Every time the drum tank makes one revolution, the abrasive grains deposited on the bottom of the fixed drum tank are discharged together with the plating solution by the oyster plate disposed on the lower surface of the rotary drum tank.

  According to the present invention, by additionally supplying a plating solution from above the rotary drum tank, the plating solution flows even inside the circular orbit where the wire is wound around the transport roller to generate a cathode diffusion layer. Is suppressed, and higher electrodeposition efficiency of abrasive grains can be obtained. According to the present invention, for example, every time the rotary drum tank makes one revolution, the abrasive particles deposited on the bottom of the fixed drum tank are plated with the oyster plate disposed on the lower surface of the rotary drum tank. By discharging together, the abrasive grains can be collected effectively.

  The present invention is characterized in that a wire taken out from the abrasive electrodeposition bath is placed in a post-plating bath and continuously subjected to post-plating treatment. In the present invention, it is preferable that the wire is degreased immediately before being put into the abrasive electrodeposition bath.

In order to fix the abrasive grains by the electrodeposition method, plating must be deposited for a predetermined time. According to the applicant's research, the plating deposition rate is several times faster when electrodepositing using only the plating solution than when electrodepositing with the wire in the abrasive grain reservoir. I understood. This is due to the fact that the energization current becomes weaker when a wire is put in the abrasive grain reservoir.
According to the present invention, in the operation of electrodepositing the above-mentioned abrasive grains on the wire, the electrodeposition treatment is performed with a minimum plating thickness to such an extent that the abrasive grains do not fall off in the post-plating step, and then the abrasive electrodeposition is performed. By subjecting the wire taken out from the tank to continuous post-plating, an electrodeposition treatment with a sufficient plating thickness can be performed, whereby the substantial electrodeposition time of the abrasive grains can be shortened.
Furthermore, degreasing the wire immediately before putting it in the abrasive electrodeposition bath saves the trouble of storing the degreased wire and continuously produces high quality electrodeposited abrasive wire tools. Can do.

  The present invention is characterized in that the suspension is circulated between the abrasive electrodeposition tank and the post plating tank by the liquid supply pump.

In order to deposit the plating uniformly and stably, the capacity of the plating tank is preferably large.
According to the present invention, even when the abrasive electrodeposition tank is made small by circulating the suspension between the abrasive electrodeposition tank and the post plating tank by the liquid supply pump, A large volume of plating solution can be circulated and the plating can be deposited uniformly and stably. For example, a suspension stirring tank is disposed in the post-plating tank, and the suspension is supplied from the suspension stirring tank to the abrasive electrodeposition tank by the liquid supply pump, and the bottom of the fixed drum tank If the drainage liquid discharged from the suspension outlet is returned to the suspension stirring tank, the plating liquid is shared between the abrasive electrodeposition tank and the post-plating tank. However, the suspension can be circulated separately from the plating solution.

  The present invention is characterized in that electricity is supplied from both the outside of the flange and the inside of the flange. In the present invention, for example, the anode electrode is disposed on the inner side of the rotary drum tank and on the outer side of the flange portion, respectively.

  According to the present invention, the anode electrode is disposed on the inner side of the rotary drum tank and on the outer side of the flange part, so that both sides of the inner side of the wire orbit and the outer side of the wire orbit are provided. Thus, the wire is energized, so that the energization current to the wire can be made uniform and the energization current can be increased.

  According to the present invention, while the wire is circulated while the wire is circulated, the wire is energized while maintaining the state where the wire is buried in the abrasive grain reservoir, and the abrasive particles are surely attached to the surface of the wire. Electrodeposit. According to the present invention, by causing the wire and the collar portion to run around at the same time, the waste of the wire is reduced, and the abrasive is efficiently electrodeposited on the wire. By synchronously operating the wire winder and the driving means, the electrodeposition of abrasive grains is started when the winding of the wire is started, and the electrodeposition of abrasive grains is stopped when the winding of the wire is stopped. So there is less waste of wire. Then, as the wire and the collar portion run around, the plating solution in the vicinity of the wire surface becomes a fluid state, the generation of the cathode diffusion layer is suppressed, and the electrodeposition efficiency of the abrasive grains is increased.

  According to the present invention, by setting the circumferential speed of the collar portion to a speed substantially equal to the circumferential speed of the wire, the difference in the relative speed between the wire and the abrasive grain pool is made slight, and plating is deposited. The relative position between the wire and the abrasive grain reservoir does not change so much until the time until, and the abrasive grains are reliably electrodeposited on the surface of the wire in a stable state. For example, the wire winder also serves as the driving means, and the contact position where the wire comes into contact with the transport roller by slightly varying the circumferential speed of the flange and the circumferential speed of the wire by a timing belt. Will shift slightly, and the abrasive can be uniformly electrodeposited without unevenness.

  According to the present invention, the size of the abrasive electrodeposition tank is minimized by the concentric arrangement of the fixed drum tank outside the collar portion. The wires do not come into contact with each other at the wire entrance / exit to the rotary drum tank provided in the fixed drum tank, so that the wires do not come into contact with each other, so that the electrodeposited abrasive grains fall off from the wire. There is no worry. For example, at the wire entrance / exit to the rotary drum tank provided in the fixed drum tank, the wire extraction height is set slightly higher than the wire entry height, and the wire is inserted from the wire entrance / exit, A wire wraps around the outer periphery of the transport roller arranged upright on the collar, and the wire enters the abrasive grain reservoir. Then, when the wire is taken out from the wire entrance / exit, the wire is separated from the outer periphery of the transport roller toward the outside of the flange portion, so that the abrasive pool is broken. Therefore, each time the rotary drum tank makes one turn, the abrasive grain pool is destroyed, so that it is possible to prevent uneven electrodeposition of the abrasive grains and places where the abrasive grains are not electrodeposited. Can be uniformly electrodeposited.

  According to the present invention, the liquid supply pump periodically supplies the suspension along the inner wall of the fixed drum tank, so that the abrasive pool is periodically formed. It is possible to prevent electrodeposition unevenness and a portion where abrasive grains are not electrodeposited. For example, every time the rotary drum tank makes one revolution, if the liquid supply pump supplies the suspension along the inner wall of the fixed drum tank, the wire once breaks out of the abrasive grain reservoir. The polished abrasive puddle is immediately reformed.

  According to the present invention, by additionally supplying a plating solution from above the rotary drum tank, the plating solution flows even inside the circular orbit where the wire is wound around the transport roller to generate a cathode diffusion layer. Is suppressed, and higher electrodeposition efficiency of abrasive grains can be obtained. According to the present invention, for example, every time the rotary drum tank makes one revolution, the abrasive particles deposited on the bottom of the fixed drum tank are plated with the oyster plate disposed on the lower surface of the rotary drum tank. By discharging together, the abrasive grains can be collected effectively.

According to the present invention, in the operation of electrodepositing the above-mentioned abrasive grains on the wire, the electrodeposition treatment is performed with a minimum plating thickness to such an extent that the abrasive grains do not fall off in the post-plating step, and then the abrasive electrodeposition is performed. By subjecting the wire taken out from the tank to continuous post-plating, an electrodeposition treatment with a sufficient plating thickness can be performed, whereby the substantial electrodeposition time of the abrasive grains can be shortened.
According to the present invention, even when the abrasive electrodeposition tank is made small by circulating the suspension between the abrasive electrodeposition tank and the post plating tank by the liquid supply pump, A large volume of plating solution can be circulated and the plating can be deposited uniformly and stably. For example, a suspension stirring tank is disposed in the post-plating tank, and the suspension is supplied from the suspension stirring tank to the abrasive electrodeposition tank by the liquid supply pump, and the bottom of the fixed drum tank If the drainage liquid discharged from the suspension outlet is returned to the suspension stirring tank, the plating liquid is shared between the abrasive electrodeposition tank and the post-plating tank. However, the suspension can be circulated separately from the plating solution.

According to the present invention, the anode electrode is disposed on the inner side of the rotary drum tank and on the outer side of the flange part, so that both sides of the inner side of the wire orbit and the outer side of the wire orbit are provided. Thus, the wire is energized, so that the energization current to the wire can be made uniform and the energization current can be increased.
Therefore, according to the present invention, an electrodeposition abrasive wire tool manufacturing apparatus that can be electrodeposited in a short time by increasing the electrodeposition efficiency of the abrasive grains and can be easily downsized is realized.

It is a block diagram which shows the whole structure of the preparation apparatus of the electrodeposition abrasive wire tool to which this invention is applied. It is a perspective view which shows the abrasive grain electrodeposition tank of the said embodiment. It is a perspective view which shows the internal structure of the wire entrance / exit vicinity of the abrasive grain electrodeposition tank of the said embodiment. It is a perspective view which expands and shows the wire entrance / exit vicinity of the abrasive electrodeposition tank of the said embodiment. It is a perspective view which expands and shows the liquid distribution opening vicinity of the abrasive electrodeposition tank of the said embodiment. It is the top view which looked at the abrasive electrodeposition tank and wire winding machine of the above-mentioned embodiment from the upper part. It is sectional drawing which looked at the collar part vicinity of the abrasive electrodeposition tank of the said embodiment from the side surface. It is a figure which shows the conveyance roller of the said embodiment, (a) is a side view, (b) is sectional drawing. It is a side view which shows the relationship between the conveyance roller of the said embodiment, and a wire. It is a perspective view which shows the abrasive grain electrodeposition tank heat retention mechanism of the said embodiment. It is a perspective view which shows the post-plating tank of the said embodiment. It is a flowchart which shows the preparation procedures of the electrodeposition abrasive wire tool to which this invention is applied. It is a figure which illustrates the circulation track | orbit of the wire in the abrasive grain electrodeposition tank to which this invention is applied. It is an external appearance photograph which shows the abrasive grain pool in the collar part vicinity of the abrasive grain electrodeposition tank to which this invention is applied, (a) is an external appearance photograph at the time of supplying a suspension along the outer wall of a rotary drum tank. Yes, (b) is a photograph of the appearance when the suspension is supplied along the inner wall of the fixed drum tank. It is the external appearance photograph which observed the electrodeposition abrasive wire tool produced by this invention with the microscope. It is the external appearance photograph which observed the electrodeposition abrasive wire tool produced by this invention with the microscope. It is sectional drawing which illustrates the electrodeposition abrasive wire tool to which this invention is applied, (a) has shown the state immediately after electrodeposition of an abrasive grain, (b) has shown the state after-plating. It is a figure which illustrates an electrodeposition abrasive wire tool, (a) is a side view, (b) is an AA sectional view.

(Production device for electrodeposited abrasive wire tool)
FIG. 1 is a configuration diagram showing the overall configuration of a production apparatus for an electrodeposited abrasive wire tool to which the present invention is applied. The electrodeposition abrasive wire tool production apparatus 1 of the present embodiment includes a core wire delivery unit 10 that feeds a core wire 201 wound around a bobbin under a predetermined tension, and a cleaning tank 20 that cleans the core wire 201 immediately before electrodeposition. Abrasive electrodeposition tank 30 for electrodepositing abrasive grains 203 on washed core wire 201, post-plating tank 60 for post-plating wire tool 200 with electrodeposited abrasive grains, and post-plated wire tool 200 A cleaning tank 80 for cleaning and a wire winder 90 for winding the completed wire tool 200 around a bobbin. The wire tool 200 and the core wire 201 are hooked on pulleys K1, K2, and K3 arranged at predetermined locations, and are conveyed from the core wire feeding unit 10 to the wire winder 90. In the present embodiment, the wire tool 200 and the core wire 201 are pulled and sequentially delivered by winding the wire tool 200 completed by the wire winder 90. In this embodiment, since pre-cleaning, electrodeposition of abrasive grains, post-plating, and post-cleaning are continuously performed on the core wire 201, for convenience of explanation, the wire tool and the post-plating on which the abrasive grains are electrodeposited are performed. The same reference numerals are used for the wire tool and the cleaned wire tool.

The core wire feeding portion 10 of the present embodiment includes a shaft portion to which a core wire bobbin is attached, a thrust washer is attached to each of the shaft portions from both sides of the core wire bobbin, and is tightened with a double nut via a rubber cushion on one side of the core wire bobbin. It has become.
According to this embodiment, the core wire (wire) 201 can be sent out while maintaining a predetermined range of tension by sandwiching the elastic rubber cushion and the self-lubricating thrust washer together with the core wire bobbin. The wire 201 of this embodiment is a piano wire (high carbon steel wire).

The washing tank 20 is a container for immersing and washing the wire 201 immediately before electrodeposition. In this embodiment, a solvent washing tank 21, an acid washing tank 22, and a water washing tank 23 are arranged in this order from the upstream side. (FIG. 1). In order to degrease the dirt (oil) on the surface of the core wire 201, acetone is contained in the solvent washing tank 21. In order to prevent the evaporation of acetone, the solvent washing tank 21 is provided with a lid. Next, in order to activate the surface by removing the oxide film on the surface of the wire 201, 10% hydrochloric acid water diluted with water at a rate of 10 wt% is in the pickling tank 22. And in order to neutralize the surface of the wire 201, the ion-exchange water is in the washing tank 23. By immersing the predetermined pulleys K1 and K2 in the cleaning liquid, the core wire 201 is conveyed and cleaned through the predetermined pulleys K1 and K2 while being immersed in the cleaning liquid. The pulley K1 on which the wire 201 is hooked is made of a chemical resistant resin material such as a fluororesin or a phenol resin. This is to prevent the pulley K1 from being attacked by acetone or 10% hydrochloric acid water. Since the wire 201 serves as a cathode electrode, the wire 201 is electrically connected to the DC power source 70 through a pulley K2 immersed in the washing bath 23. The material of the pulley K2 was made of stainless steel, which has high conductivity and hardly rusts.
According to the present embodiment, by degreasing the wire 201 immediately before putting it into an abrasive electrodeposition tank 30 to be described later, the trouble of storing the degreased wire 201 can be saved.

FIG. 2 is a perspective view showing the abrasive electrodeposition tank of the present embodiment. FIG. 6 is a plan view of the abrasive electrodeposition tank and wire winder of this embodiment as viewed from above, and FIG. 7 is a cross-sectional view taken along the line AA.
In the abrasive electrodeposition tank 30 of the present embodiment, a fixed drum tank 34 is concentrically arranged outside the rotary drum tank 31, and each is installed on a base 38. A lid 39 is disposed on the upper surface of the abrasive electrodeposition tank 30. An acrylic plate was used as the material of the lid 39 in order to observe the state in the tank. A rotary shaft is attached to the center of the rotary drum tank 31, and is connected to the rotary drum tank 31 by a bearing 32c on the upper side of the rotary drum tank 31 (FIG. 2). The rotating shaft is connected to the pulley 99 below the rotary drum tank 31 and interlocks with the pulley 95 via the timing belt 97 (FIGS. 2 and 6). The pulley 95 is interlocked with the pulley 93, the pulley 93 is interlocked with the pulley 94 via the belt 96, and the pulley 94 is connected to the drive shaft and driven by the drive means (drive motor) M1 (FIG. 6). The drive motor M1 drives the pulley 92 via the pulley 94 and the belt 96, and rotates the wire winding bobbin 91 connected to the pulley 92 (FIG. 6). That is, the drive motor M1 of the wire winder 90 also serves as the drive means for the rotary drum tank 31, and the wire winding bobbin 91 and the rotary drum tank 31 are operated synchronously by the drive motor M1. The detailed operation of the drive system will be described later.

The fixed drum tank 34 of the present embodiment has a cylindrical shape, and is concentrically arranged so as to hold the rotary drum tank 31. A cylindrical partition 33 is formed integrally with the fixed drum tank 34 and arranged concentrically at a position inside the fixed drum tank 34 and outside the flange 37 of the rotary drum tank 31. In addition, a cylindrical partition 341 is formed integrally with the fixed drum tank 34 and arranged concentrically at a position inside the rotary drum tank 31 inside the fixed drum tank 34. The rotary drum tank 31 has a concave shape when viewed from the side, and the lowermost surface 34c of the fixed drum tank 34 is formed with a suspension discharge port extending vertically through the lowermost surface 34c, and a drain pipe 432 is formed. It is attached (see FIG. 7). The drainage pipes 432 are attached to the lowermost surface 34c of the fixed drum tank 34 at four predetermined positions with axial symmetry. A roller clamp R <b> 1 is attached to the drain pipe 432 at a position slightly away from the fixed drum tank 34 to adjust the discharge amount of the suspension 204 (including the plating solution 202).
According to this embodiment, since the fixed drum tank 34 is arranged concentrically outside the rotary drum tank 31, the size of the abrasive electrodeposition tank 30 is minimized.

  The rotary drum tank 31 of the present embodiment has a cylindrical shape, and a disk-shaped partition 32 is provided on the upper portion thereof, and penetrates the disk-shaped partition 32 vertically along the inner periphery of the disk-shaped partition 32. Through holes 32a are arranged at predetermined intervals (FIG. 6). The rotary drum tank 31 has a reverse concave shape when viewed from the side, and a ring-shaped flange 37 is formed below the rotary drum tank 31 (see FIG. 7). The fixed drum tank 34 and the rotary drum tank 31 are preferably made of a material that does not easily corrode against the plating solution. In the present embodiment, the fixed drum tank 34 and the rotary drum tank 31 are made of stainless steel.

  On the collar part 37, the conveyance roller P1 is erected at a predetermined interval. In the present embodiment, a total of 12 conveying rollers P1 are erected every 30 degrees (FIG. 6). The number of the transport rollers P1 is set according to the size of the collar portion 37 and the size of the transport rollers P1, and as a guideline, about 6 to 60 are set up.

  FIG. 8 shows the conveying roller P1 of the present embodiment, where (a) is a side view and (b) is a cross-sectional view. The conveying roller P1 is bolted with a nut through a through hole (or a screw hole) formed in the flange portion 37 by inserting a bolt-shaped shaft portion P12 into the hollow pipe-shaped roller P11. The shaft part P12 may use a commercially available stainless steel bolt (for example, a M2.6 bolt). The roller P11 is rotatably arranged on the outer periphery of the shaft portion P12. The material of the roller P11 is preferably a plastic having high slidability, excellent insulation, and chemical resistance. In this embodiment, a polyethylene pipe is used. A groove processing portion P11b that circulates around the roller is formed at a predetermined position on the outer periphery of the roller P11, and the wire 201 is placed along the groove processing portion P11b of the roller P11 so that the circular trajectory of the wire 201 does not easily come off the predetermined position. Become.

  As shown in FIG. 6, in this embodiment, the degreased and cleaned wire 201 advances from the right side (right hand in the drawing) in the direction of travel a, and moves to the pulley K1 disposed on the front right side of the base 38. Then, while the traveling direction is corrected, it enters the tank through the right side window 34a of the abrasive electrodeposition tank 30, is hung on the twelve transport rollers P1, and makes one turn around the rotary drum 31 clockwise. It is taken out from the left side window 34b of the electrodeposition tank 30, and proceeds to the next process while its traveling direction is corrected by a pulley K1 disposed on the front left side of the base 38.

  In the present embodiment, nickel lumps 71a and 72a are placed in titanium baskets 71 and 72, respectively, as anode electrodes. The titanium baskets 71 and 72 are connected in a daisy chain and electrically connected to the DC power source 70 via an electric cable. In the present embodiment, a titanium basket 71 serving as an anode electrode is suspended and fixed from the lid 39 and arranged inside the rotary drum tank 31. A titanium basket 72 as an anode electrode is placed on the bottom of the fixed drum tank 34. And it energizes to the wire 201 as a cathode electrode along the outer periphery of the conveyance roller P1. Therefore, electricity is supplied from both the outside of the flange portion 37 around which the core wire 201 circulates and the inside of the flange portion 37. Thus, by applying current from both sides of the inner circumference of the wire 201 and the outer side of the circumference of the wire 201, the conduction current to the wire 201 can be made uniform and the conduction current can be increased.

  In the present embodiment, a post plating tank 60 is provided for continuously performing a post plating process on the wire 201 taken out from the abrasive electrodeposition tank 30. This is because, in the operation of electrodepositing the abrasive grains 203 on the wire 201, the electrodeposition treatment with the minimum plating thickness 205a is performed to such an extent that the abrasive grains 203 do not fall off in the post-plating step (FIG. 17A). The wire 201 taken out from the abrasive electrodeposition tank 30 is continuously post-plated to form a wire tool 200, thereby performing an electrodeposition treatment with a sufficient plating thickness 205b (FIG. 17B). The substantial electrodeposition time 203 can be shortened.

In the present embodiment, a part of the post plating tank 60 is partitioned by a partition, and the abrasive stirring layer 50 is disposed. A predetermined amount of plating solution 202 is contained in the post-plating tank 60, and the plating solution 202 enters and exits the abrasive agitation layer 50 from above the partition or the like. The abrasive agitation layer 50 mixes and agitates the diamond abrasive grains 203 in the plating solution 202 to form a suspension 204. Then, the suspension 204 is conveyed by the liquid supply pump 41 via the transport pipe 411 and supplied from the supply pipe 412 to the abrasive electrodeposition tank 30 (FIG. 1). Then, the plating solution 202 is conveyed by the solution supply pump 42 and supplied to the abrasive electrodeposition tank 30 from the supply pipe 412. A discharge pipe 432 is disposed below the abrasive electrodeposition tank 30, and the suspension 204 (including the plating solution 202) is discharged and returned to the abrasive stirring layer 50 of the post-plating tank 60.
According to the present embodiment, the suspension 204 is circulated between the abrasive grain electrodeposition tank 30 and the post-plating tank 60 by the liquid supply pump 41. A large volume of plating solution can be circulated and can be deposited uniformly and stably.

  3 and 4 are views showing the vicinity of the wire entrance / exit of the abrasive electrodeposition tank of the present embodiment. In this embodiment, the front side of the cylindrical partition 33 provided in the fixed drum tank 34 is cut off to form the wire entrance / exit 331. A U-shaped gate member 36 is disposed on the front side (front side) of the wire entrance / exit 331 as viewed from above. A right side window 36a for allowing the wire 201 to enter is formed on the right side surface of the gate member 36, and a left side window 36b for taking out the wire 201 is formed on the left side surface of the gate member 36 (FIG. 4). On the left and right sides of the gate member 36, a pair of partition plates 35 are arranged at predetermined intervals and installed in a C shape when viewed from above (FIG. 3). The gate member 36 causes the wire 201 to enter the rotary drum tank 31, removes the wire 201 from the rotary drum tank 31, and prevents the suspension 204 (including the plating solution 202) from flowing out from the partition. Cough up. In addition, the pair of partition plates 35 are blocked so that the suspension 204 (including the plating solution 202) overflowing from the gate member 36 does not flow out of the partitioned section. That is, the suspension member 204 is prevented from flowing out of the abrasive electrodeposition tank 30 by combining the gate member 36 and the pair of partition plates 35.

By increasing the height 6h3 of the gate member 36 (the height 6h3 from the bottom 34d of the fixed drum tank 34 to the upper surface of the gate member 36), the liquid level of the suspension 204 rises and the height of the gate member 36 increases. Since the liquid level of the suspension 204 is lowered by reducing the height 6h3, the liquid level of the suspension 204 can be adjusted by changing the height 6h3 of the gate member 36 (FIG. 4). See).
Then, the height 6h1 of the right side window 36a (the height 6h1 from the bottom 34d of the fixed drum tank 34 to the center of the right side window 36a of the gate member 36) through which the wire 201 of the gate member 36 enters, and the wire of the gate member 36 The height 6h2 of the left window 36b from which 201 is taken out (the height 6h2 from the bottom 34d of the fixed drum tank 34 to the center of the left window 36b of the gate member 36) is made different (see FIG. 4). ). In the present embodiment, the height 6h2 of the left window 36b from which the wire 201 is taken out is set slightly higher than the height 6h1 of the right window 36a through which the wire 201 enters (6h1 <6h2).
According to the present embodiment, the wires 201 do not come into contact with each other at the wire entrance / exit 331 to the rotary drum tank 31 provided in the fixed drum tank 34 so that the wires 201 do not come into contact with each other. There is no concern that the polished abrasive 203 will fall off the wire 201.

  In the present embodiment, abrasive grains 203 are precipitated on a flange 37 formed below the rotary drum tank 31 to form an abrasive grain reservoir 203b, and are arranged upright at predetermined intervals on the flange 37. By placing the wire 201 along the transport roller P1 and placing the wire 201 in the abrasive grain reservoir 203b, and winding the wire tool 200 (the electrode 201 electrodeposited with the abrasive grains 203) on the wire winder 90 The rotary drum tank 31 is rotated by the driving means M1 while the wire 201 is circulated around the portion 37. The rotation direction of the rotary drum tank 31 and the direction of the circular running of the wire 201 are the same clockwise direction (cw direction in FIG. 1).

  FIG. 9 is a side view showing the relationship between the transport roller P1 and the wire 201 of the present embodiment. In this embodiment, when the wire 201 enters the rotary drum tank 31 from the right window 36a of the gate member 36, the wire 201 approaches the outer periphery of the transport roller P1 that is erected on the flange 37 (FIG. 9A). )), The wire 201 is wound around the groove processing portion P11b of the conveying roller P1, and the wire enters the abrasive grain reservoir 203b (FIG. 9B). Then, the rotary drum tank 31 rotates about once in a state where the wire is put in the abrasive grain reservoir 203b (FIG. 9C), and when the wire 201 is taken out from the left window 36b of the gate member 36, the wire 201 becomes the transport roller. It leaves | separates from the outer periphery of P11 toward the outer side of the collar part 37 (FIG.9 (d)), and the abrasive grain reservoir 203b is destroyed. According to the present embodiment, each time the rotary drum tank 31 makes one revolution, the abrasive grain reservoir 203b is broken, so that uneven electrodeposition of the abrasive grains 203 or a place where the abrasive grains 203 are not electrodeposited can be formed. Thus, the abrasive grains 203 can be uniformly electrodeposited on the wire 201.

In the present embodiment, the suspension 204 is conveyed by the liquid supply pump 41 via the transport pipe 411 and supplied from the supply pipe 412 to the abrasive electrodeposition tank 30 (FIG. 1). FIG. 5 is an enlarged perspective view showing the vicinity of the liquid distribution port 412a of the abrasive electrodeposition tank 30 of the present embodiment. The liquid supply pump 41 is disposed in a gap between the outer periphery of the rotary drum tank 31 and the inner periphery of the cylindrical partition 33, and from the vicinity of the left window 36 b of the gate member 36 toward the rotation direction of the rotary drum tank 31. A plurality of liquid distribution ports (liquid distribution holes) 412a are formed so as to be bent in an L shape and to face the inner wall of the cylindrical partition 33 (to face the opposite side of the outer peripheral wall of the rotary drum tank 31). . Each time the rotary drum tank 31 makes one rotation, the liquid supply pump 41 discharges the suspension 204 toward the inner wall of the cylindrical partition 33 formed inside the fixed drum tank 34, and the cylinder The suspension 204 is supplied along the inner wall of the partition 33.
According to this embodiment, every time the rotary drum tank 31 makes one rotation, the liquid supply pump 41 is suspended along the inner wall of the cylindrical partition 33 formed inside the fixed drum tank 34. Therefore, the abrasive grain reservoir 203b, which has been broken once the wire 201 comes out of the abrasive grain reservoir 203b, is immediately re-formed.

In this embodiment, through holes 33 a are formed at predetermined intervals on the lower side surface of the cylindrical partition 33 formed inside the fixed drum tank 34, and predetermined on the outer peripheral lower side surface of the rotary drum tank 31. Through holes 31a are formed at intervals (FIG. 7). Then, the plating liquid 202 is provided above the rotary drum tank 31 with the supply pipe 412 of the liquid supply pump 42, and the plating liquid 201 is supplied to the abrasive electrodeposition tank 30. In the present embodiment, the suspension 204 is supplied to the abrasive electrodeposition tank 30, and the plating solution 201 is additionally supplied.
With this configuration, as shown in FIG. 7, the level of the plating solution 201 (including the suspension 204) gradually increases from the inside of the rotary drum tank 31 toward the inner wall of the fixed drum tank 34. It is set to be low. That is, when the lowermost surface 34c of the fixed drum tank 34 is used as a reference, the liquid level height 2h2 in the inner area of the rotary drum tank 31 is higher than the liquid level height 2h1 in the area where the flange 37 is disposed. The surface is high (2h1 <2h2). Therefore, the plating solution 201 flows into the abrasive grain reservoir 203b, effectively suppressing the cathode diffusion layer around the wire 201 and obtaining higher electrodeposition efficiency of the abrasive grains.

  In the present embodiment, the oyster plate Q1 is disposed on the lowermost surface of the flange portion 37 of the rotary drum tank 31. The oyster plate Q1 has a spatula shape, and is attached at predetermined positions at four positions with axial symmetry in accordance with the arrangement of the drain pipes 432. With this configuration, as shown in FIG. 7, every time the rotary drum tank 31 makes one revolution, the sediment deposited on the bottom of the fixed drum tank 34 by the oyster plate Q <b> 1 disposed on the lower surface of the rotary drum tank 31. While removing the abrasive grains 203 c, the deposited abrasive grains 203 c are discharged together with the discharge of the plating solution 202 from the drain pipe 432 attached to the bottom of the fixed drum tank 31. Therefore, the accumulated abrasive grains 203c precipitated on the bottom of the fixed drum tank 34 can be effectively recovered.

  In this embodiment, in order to maintain the temperature required for plating, a heat retention mechanism is added to the abrasive electrodeposition tank 30 (FIG. 10). In the present embodiment, a closed-cell rubber sponge S21 having a high heat insulating effect is attached to the outer peripheral side surface of the abrasive electrodeposition tank 30, and similarly, the rubber sponge S22 is attached to the back bottom surface of the abrasive electrodeposition tank 30. . For the heat radiation to the upper part of the abrasive electrodeposition tank 30, an acrylic lid 39 is attached to suppress a decrease in the liquid temperature of the suspension 204 (including the plating solution 202). Moreover, it heats with the electric heater S1 distribute | arranged to the upper part inside the rotary drum tank 31 of the abrasive electrodeposition tank 30 as needed.

  FIG. 11 is a perspective view showing the post-plating tank 60 of the present embodiment. In the present embodiment, four multi-groove pulleys K3 are arranged at predetermined intervals in the post-plating tank 60, and the electrodeposited wire 200 taken out from the abrasive electrodeposition tank 30 is the post-plating tank. It is conveyed along the pulley K1 at the entrance of 60, spirally circulates along the groove portions of the four multi-groove pulleys K3, and is conveyed to the next step along the pulley K1 at the exit of the post-plating tank 60. Three titanium baskets 73 containing nickel lumps are arranged at predetermined intervals between the four multi-groove pulleys K3 and outside with the electrode 200 with electrodeposited abrasive grains interposed therebetween. The abrasive electrodeposited wire 200 is electrically connected as a cathode electrode, the titanium basket 73 is electrically connected as an anode electrode, and post-plating is performed. The multi-groove pulley K3 has a structure shown in FIG. 8, for example. Then, the post-plated wire tool 200 is immersed in a cleaning tank 80 and washed with water (FIG. 1). Then, the wire tool 200 that has been washed with water is passed through a winder 98 so that the wound wires do not overlap each other at the time of winding the wire, and wound by the wire winding bobbin 91 (FIG. 6).

With the above-described apparatus configuration, in the present embodiment, the drive motor M1 of the wire winder 90 also serves as a drive unit that rotates the rotary drum tank 31, and the timing belt 97 and the rotation speed of the flange 37 and the wire 201 are rotated. The lap speed is slightly different.
According to the present embodiment, the difference in the relative speed between the wire 201 and the abrasive grain reservoir 203b is made slight by setting the peripheral speed of the flange portion 37 to a speed substantially equal to the peripheral speed of the wire 201. Therefore, the relative position between the wire 201 and the abrasive grain reservoir 203b does not change so much until the plating is deposited, and the abrasive grains 203 are reliably electrodeposited on the surface of the wire 201 in a stable state. Then, by slightly varying the circumferential speed of the flange 37 and the circumferential speed of the wire 201 by the timing belt 97, the contact position where the wire 201 contacts the transport roller P1 is slightly shifted, and the grinding is performed uniformly without unevenness. The grains 203 can be electrodeposited. In the present embodiment, the circumferential speed of the flange portion 37 is slightly delayed by the timing belt 97 from the circumferential speed of the wire 201.

(Method for producing electrodeposited abrasive wire tool)
FIG. 12 is a flowchart showing a procedure for producing an electrodeposited abrasive wire tool to which the present invention is applied. Steps S <b> 1 to S <b> 3 in FIG. 12 are preprocessing steps for the core wire (wire) 201. Steps S <b> 4 to S <b> 8 are abrasive grain electrodeposition processing steps of the abrasive grains 203 to the wire 201. Step S <b> 9 is a post-plating process for the electrodeposited wire 200. Step S10 is a washing process of the post-plated wire tool 200. Step S11 is a wire winding process in which the completed wire tool 200 is wound around a bobbin.

In the present embodiment, the wire 201 is pretreated by degreasing (S1), pickling (S2), and washing with water (S3). Then, the diamond abrasive grains 203 are stirred into the plating liquid 202 to form a suspension 204 (S4), and the suspension 204 is supplied to the abrasive electrodeposition tank 30 by the liquid supply pump 41 (S5). The abrasive grains 203 are precipitated on the flange 37 formed below the tank 31 to form an abrasive grain reservoir 203b (S6), and the wire 201 is put into the formed abrasive grain reservoir 203b. The rotary drum tank 31 is rotated almost simultaneously while winding the wire 201 on the collar portion 37 by winding the wire with the drive motor M1, and the wire 201 and the abrasive electrodeposition tank 30 in the circular running are rotated. A current is passed between the anode electrodes 71 and 72 arranged on the wire, and the abrasive grains 203 are electrodeposited on the wire surface (S7). Then, by removing the electrode 200 with the electrodeposited abrasive grains from the abrasive grain reservoir 203b, the abrasive grain reservoir 203b is eliminated (S8), continuously post-plated (S9), washed with water (S10), and wound with a wire tool ( S11) is performed.
According to the present embodiment, wire degreasing, abrasive electrodeposition treatment, post-plating treatment, water washing, and wire winding can be continuously performed, and a high-quality wire tool 200 can be obtained in a short time. In addition, the pre-processing process and post-plating process of FIG. 12 can be suitably omitted according to the production conditions of the wire tool.

(Example)
An apparatus for producing the electrodeposited abrasive wire tool of the present embodiment described above was prototyped. The overall size of the prototype electrodeposition abrasive wire tool production apparatus 1 is 1.8 m in width and 0.9 m in depth, which is much smaller than the conventional apparatus (as a guide, the size is 1 / 10 or less). In this example, the size of the abrasive electrodeposition tank 30 was 0.45 m in width and 0.45 m in depth. Further, the post-plating tank 60 has a wire travel distance of about 1.5 m per turn, and a wire travel distance of about 45 m at maximum can be obtained by attaching 30 grooves to each of the four multi-groove pulleys K3. It was.

  FIG. 14 is an external photograph showing the formation state of the abrasive grain reservoir 203b in the vicinity of the flange 37 of the above-described abrasive electrodeposition tank 30 of the present embodiment. When the suspension 204 is supplied along the outer wall of the rotary drum tank 31, the accumulated height of the abrasive grain reservoir 203b is about 4 mm, and there are some places where the wire 201 (appears whitish) is exposed. (FIG. 14A). Therefore, when the suspension 204 is supplied along the inner wall of the cylindrical partition 33 formed in the fixed drum tank 34 (FIGS. 5 and 7), the accumulated height of the abrasive pool 203b is about 6 mm. It was confirmed that more abrasive grains were accumulated and the wire 201 was buried in the abrasive grain reservoir 203b (FIG. 14B). In the experiment, commercially available green silicon carbide abrasive grains (GC) having an abrasive grain size of about 15 μm were stirred into a commercially available plating solution to give a suspension, and the rotating drum tank 31 was set at a peripheral speed of 2. It was rotated so that it might become 1,000,000 / min. The wire is a commercially available piano wire having a wire diameter of 0.2 mm.

FIG. 15 is an external view photograph of a microscopic observation of an electrodeposited abrasive wire tool made at a wire tool production speed of about 1,500 mm / min. FIG. 15A is a plan view of the wire observed with a microscope at an arbitrary position, FIG. 15B is a rear view, FIG. 15C is a left side view, and FIG. 15D is a right side view. 15A to 15D also show that uniform electrodeposition of abrasive grains is performed over the entire circumference of the wire tool.
FIG. 16 is an appearance photograph of a microscopic observation of an electrodeposited abrasive wire tool made at a wire tool production speed of about 2,000 mm / min. FIG. 16A is a plan view of the wire observed with a microscope at an arbitrary position, FIG. 16B is a rear view, FIG. 16C is a left side view, and FIG. 16D is a right side view. 16 (a) to 16 (d), it can be seen that uniform electrodeposition of abrasive grains is performed over the entire circumference of the wire tool. Also, there is a significant difference in the amount of electrodeposited abrasive on the wire surface when the wire tool production speed is about 1,500 mm / min and when the wire tool production speed is about 2,000 mm / min. In other words, the amount of abrasive electrodeposition on the wire surface is constant. Therefore, according to this example, it was confirmed that good electrodeposition of the abrasive grains was performed even when the production speed of the wire tool was 3 to 4 times higher than that of the conventional apparatus.

  The present invention is not limited to the embodiment described above. As abrasive grains to which the present invention is applied, diamond abrasive grains, CBN, brown alumina abrasive grains (A), white alumina abrasive grains (WA), single crystal alumina abrasive grains (HA), black silicon carbide abrasive grains Examples thereof include grains (C), green silicon carbide abrasive grains (GC), and zirconia alumina abrasive grains (Z). In addition, examples of the wire material to which the present invention is applied include piano wire, stainless steel wire, tungsten wire, and the like, and the wire shape may be not only a single wire but also a stranded wire. Thus, it goes without saying that the present invention can be modified as appropriate without departing from the spirit of the present invention.

1 Electrodeposition abrasive wire tool production equipment,
10 Core wire feeding part,
20, 21, 22, 23 Cleaning tank,
30 Abrasive electrodeposition bath,
31 Rotary drum tank,
33 Fixed drum tank,
37
P1 transport roller,
41, 42 liquid supply pump,
50 abrasive stirring tank,
60 post-plating bath,
70 DC power supply,
80 washing tank,
90 wire winder,
M1 drive means (drive motor),
K, K1, K2 pulley,
200 Electrodeposited abrasive wire tool (wire tool),
201 core wire (wire),
202 plating solution,
203 abrasive grains (diamond abrasive grains),
203b Abrasive grain reservoir,
204 suspension,
205 plating layer

Claims (18)

  A suspension consisting of a plating solution and abrasive grains is supplied to the abrasive electrodeposition tank by a liquid supply pump, and the abrasive is deposited on the collar formed below the rotary drum tank disposed in the abrasive electrodeposition tank. The grains are precipitated to form an abrasive grain reservoir, and the wire is placed in the abrasive grain reservoir with a wire placed along a conveying roller that is erected at a predetermined interval on the collar, and the wire is wound by a wire winder. The rotating drum tank is rotated by the driving means while the wire is circulated on the collar by winding the wire, and the wire between the circulated and the anode electrode arranged in the abrasive electrodeposition tank is A method for producing an electrodeposited abrasive wire tool, wherein the abrasive is electrodeposited on the surface of the wire.   The method for producing an electrodeposited abrasive wire tool according to claim 1, wherein the wire and the flange are caused to travel around the metal substantially simultaneously.   The method for producing an electrodeposited abrasive wire tool according to claim 1 or 2, wherein the circumferential speed of the flange is set to a speed substantially equal to the circumferential speed of the wire.   The fixed drum tank is concentrically arranged outside the flange, and the wires cross three-dimensionally at a wire entrance to the rotary drum tank provided in the fixed drum tank. A method for producing an electrodeposited abrasive wire tool.   The method for producing an electrodeposited abrasive wire tool according to claim 4, wherein the liquid supply pump periodically supplies the suspension along an inner wall of the fixed drum tank.   Through holes are formed at predetermined intervals on the lower side surfaces of the rotary drum tank and the fixed drum tank, respectively, and a plating solution is additionally supplied from the upper side of the rotary drum tank, so that the bottom of the fixed drum tank 6. The method for producing an electrodeposited abrasive wire tool according to claim 5, wherein the abrasive grains deposited on the substrate are discharged together with a plating solution.   An electrodeposited abrasive wire tool according to any one of claims 1 to 6, wherein the wire taken out from the abrasive electrodeposition bath is placed in a post-plating bath and continuously subjected to post-plating treatment. Manufacturing method.   The method for producing an electrodeposited abrasive wire tool according to claim 7, wherein the suspension is circulated between the abrasive electrodeposition tank and the post plating tank.   2. The method for producing an electrodeposited abrasive wire tool according to claim 1, wherein electricity is applied from both the outside of the flange and the inside of the flange. Abrasive electrodeposition tank, a rotary drum tank disposed in the abrasive electrodeposition tank and rotated by driving means, and a liquid supply for supplying a suspension of plating solution and abrasive grains into the abrasive electrodeposition tank A pump, an anode electrode disposed in the abrasive electrodeposition tank, a transport roller for winding the wire, and a wire winder for winding the wire;
Abrasive grains are allowed to settle on a flange formed below the rotary drum tank to create an abrasive grain reservoir, and a wire is placed along a conveying roller arranged upright at predetermined intervals on the flange. A wire is put into the abrasive grain reservoir, and the wire is wound around by the wire winder, and the wire drum is run around on the collar portion. A device for producing an electrodeposited abrasive wire tool, wherein the abrasive is electrodeposited on the surface of the wire by energizing between the electrode and the anode electrode disposed in the electrodepositing tank.   The apparatus for producing an electrodeposited abrasive wire tool according to claim 10, wherein the wire winder and the driving means are operated synchronously.   12. The electrodeposited abrasive wire according to claim 11, wherein the wire winder also serves as the driving means, and the circumferential speed of the flange portion and the circumferential speed of the wire are slightly different by a timing belt. Tool making device.   A fixed drum tank is concentrically arranged outside the flange, and the wire entrance height and the wire take-out height are made different at the wire entrance to the rotary drum tank provided in the fixed drum tank. The electrodeposition abrasive wire tool manufacturing apparatus according to claim 10.   The liquid supply port of the liquid supply pump is arranged toward the inner wall of the fixed drum tank, and the liquid supply pump is moved along the inner wall of the fixed drum tank every time the rotary drum tank rotates a predetermined amount. 14. The apparatus for producing an electrodeposited abrasive wire tool according to claim 13, wherein the suspension is supplied.   Through holes are formed at predetermined intervals in the lower side surfaces of the rotary drum tank and the fixed drum tank, respectively, and a plating solution is additionally supplied from the inside of the rotary drum tank, and the rotary drum tank rotates once. 15. The electrodeposition according to claim 14, wherein the abrasive grains deposited on the bottom of the fixed drum tank are discharged together with a plating solution by an oyster plate disposed on a lower surface of the rotary drum tank each time. A device for producing an abrasive wire tool.   The apparatus for producing an electrodeposited abrasive wire tool according to claim 10, wherein a post-plating tank for continuously performing post-plating treatment on the wire taken out from the abrasive electrodeposition tank is installed.   A suspension agitation tank is disposed in the post-plating tank, and the suspension is supplied from the suspension agitation tank to the abrasive electrodeposition tank by the liquid supply pump, and at the bottom of the fixed drum tank. 17. The apparatus for producing an electrodeposited abrasive wire tool according to claim 16, wherein the discharged liquid from the formed suspension outlet is returned to the suspension stirring tank. 11. The electrodeposition abrasive wire tool manufacturing apparatus according to claim 10, wherein the anode electrode is disposed on an inner side of the rotary drum tank and on an outer side of the flange portion, respectively.

Images