JP6474861B2 - Polishing apparatus, polishing member processing or correction tool, polishing member processing or correction method, and polishing member manufacturing method - Google Patents

Description

  The present invention relates to a polishing apparatus provided with a polishing member and its peripheral technology.

  As described in Patent Document 1, when a portion to be polished of an object to be polished (object to be polished) is polished with an abrasive member, the shape of the polished surface of the abrasive member gradually changes. Therefore, in general, so-called dressing is performed in which the polished surface is corrected and returned to the original shape.

JP 11-188590 A

  By the way, the conventional dressing is often performed for the purpose of correcting a flat polishing surface, and almost consideration is given to dressing various shapes of polishing surfaces along the shape of the portion to be polished of the workpiece. It has not been.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a polishing apparatus and a polishing apparatus that can easily perform shape processing and shape correction of a polishing surface having a shape different from a planar shape. An object of the present invention is to provide a polishing tool processing or correction tool, a polishing member processing or correction method, and a polishing member manufacturing method.

  A polishing apparatus that solves the above problems is formed of a resin, a woven fabric, a nonwoven fabric, a resin processed product of a nonwoven fabric, a synthetic leather, or a composite product thereof having a polished surface that follows the shape of the part to be polished of the workpiece. A polishing member, a tool having the same shape as the shape of the portion to be polished, a tool for processing or correcting the polishing surface into a shape along the shape of the portion to be polished, and the polishing surface And a contact mechanism for bringing the tool into contact therewith.

  In this configuration, the polishing member has a polishing surface having a shape that follows the shape of the portion to be polished of the workpiece. Therefore, even if the part to be polished of the workpiece is different from a flat shape such as a curved surface or a triangular shape, it can be polished.

  Here, in the same configuration, the tool has the same shape as the shape of the portion to be polished, and a tool for processing or correcting the polishing surface into a shape along the shape of the portion to be polished is applied to the polishing surface by the contact mechanism. Touch. Therefore, the polishing surface that is in contact with the tool is transferred to the shape of the portion to be polished of the workpiece by transferring the shape of the tool having the same shape as the shape of the portion to be polished of the workpiece to be polished. Processed or modified to the shape along. Thus, the polishing surface of the polishing member has a shape that conforms to the shape of the part to be polished of the workpiece, but the shape of the polishing surface and the shape of the tool are in such a relationship that one is concave and the other is convex. Therefore, shape processing or shape correction of the polished surface having a shape different from the planar shape can be easily performed.

  Note that the shape of the part to be polished of the workpiece and the shape of the tool do not have to be completely the same, and the shapes may be slightly different from each other to the extent that there is no practical problem.

  Further, the tool is not particularly limited as long as it can process the polishing surface of the polishing member appropriately and has a processed part having a hardness higher than the polishing surface of the polishing member. As such, it is possible to use processing tools with fixed abrasives such as pellets and electrodeposition grindstones, and cutting tools such as end mills and tools.

  Alternatively, the tool is a tool capable of adjusting the surface of the polishing member or removing dirt or fixed matter adhering to the surface of the polishing member. As a specific example, the tool with a fixed abrasive is used. Alternatively, a hard brush or the like can be used.

  Moreover, it is preferable that the said grinding | polishing apparatus contacts the tool with respect to the grinding | polishing surface by a contact mechanism for every predetermined period. According to this configuration, since the polishing surface is processed or corrected every predetermined period, it is possible to favorably maintain the polishing accuracy when polishing the workpiece.

  Further, in the above polishing apparatus, the polishing surface of the polishing member has a shape along the shape of the polished portion by bringing a surface of the polishing member having a shape different from the shape of the polished portion into contact with the tool. Preferably it is formed.

  According to this configuration, the formation of the polished surface along the shape of the portion to be polished of the workpiece is performed on the polishing apparatus. Therefore, it is possible to form the shape of such a polished surface with high accuracy as compared with a case where a polishing member having a polished surface formed in advance along the shape of the portion to be polished of the workpiece is attached to the polishing apparatus. it can.

  The polishing apparatus preferably includes a motor that rotates the polishing member from below, or a surface plate that rotates integrally with the polishing member with the polishing member placed on the upper surface. According to these configurations, since stable rotation of the polishing member with less shaft runout or the like can be obtained, more accurate processing can be performed.

  Moreover, it has the same shape as the shape of the part to be polished, and by using a tool for processing or correcting the polishing surface into a shape along the shape of the part to be polished in the above polishing apparatus, Can easily shape or modify a polished surface having a different shape.

  Moreover, in the processing or correction method of the polishing member that solves the above problems, a resin having a polished surface that follows the shape of the part to be polished of the workpiece to be polished, a woven fabric, a nonwoven fabric, a resin processed product of a nonwoven fabric, a synthetic leather, Alternatively, the polishing surface of the polishing member formed of the composite product has the same shape as the shape of the portion to be polished, and the polishing surface is processed or corrected to a shape that matches the shape of the portion to be polished. Tool to make contact.

  In this method, a polishing member having a polishing surface having a shape along the shape of a portion to be polished of a workpiece to be polished is prepared. Therefore, even if the part to be polished of the workpiece is different from a flat shape such as a curved surface or a triangular shape, it can be polished.

  Here, in this method, a tool that has the same shape as the shape of the portion to be polished and that processes or modifies the polishing surface into a shape that conforms to the shape of the portion to be polished is brought into contact with the polishing surface. I am doing so. Therefore, the polishing surface that is in contact with the tool is transferred to the shape of the portion to be polished of the workpiece by transferring the shape of the tool having the same shape as the shape of the portion to be polished of the workpiece to be polished. It is corrected to the shape along. Thus, the polishing surface of the polishing member has a shape that conforms to the shape of the part to be polished of the workpiece, but the shape of the polishing surface and the shape of the tool are in such a relationship that one is concave and the other is convex. Therefore, the shape of the polished surface having a shape different from the planar shape can be easily corrected.

  According to the present invention, it is possible to easily perform shape processing or shape correction of a polished surface having a shape different from a planar shape.

The top view which shows schematic structure of the grinding | polishing apparatus of one Embodiment. The side view which shows schematic structure of the grinding | polishing apparatus of the embodiment. The partial side view of the grinding | polishing apparatus which shows a state when the cutting tool for shape processing or the tool for surface correction is contacting the grinding | polishing member in the embodiment. The partial side view of the grinding | polishing apparatus which shows a state when the cutting tool for shape processing or the tool for surface correction leaves | separated from the grinding | polishing member in the embodiment. The top view which shows schematic structure of the grinding | polishing apparatus in the modification of the embodiment. The side view which shows the structure of the cutting tool for shape processing in another modification of the embodiment. (A) is a side view which shows the structure of the cutting tool for shape processing in another modification of the embodiment. (B) is sectional drawing along CC line. The side view which shows the structure of the tool for surface correction in another modification of the embodiment. The side view which shows the operation | movement aspect of the contact mechanism in another modification of the embodiment. The side view which shows the operation | movement aspect of the contact mechanism in the same modification as FIG. The side view which shows the operation | movement aspect of the contact mechanism in the same modification as FIG. The perspective view of the bar in another modification of the embodiment. The top view of the polishing member in the same modification as FIG. The side view of the grinding | polishing member in another modification of the embodiment. The top view of the polishing member in the same modification as FIG. FIG. 15 is a side cross-sectional view of a polishing member in the same modification as FIG. The partial side view of the to-be-polished workpiece and polishing member in another modification of the embodiment. The partial side view of the to-be-polished workpiece and the polishing member in another modification of the embodiment. The partial side view of the to-be-polished workpiece and the polishing member in another modification of the embodiment. The partial side view of the to-be-polished workpiece and polishing member in another modification of the embodiment. The partial side view of the to-be-polished workpiece and the polishing member in another modification of the embodiment. The partial side view of the polishing member in another modification of the embodiment. The partial side view of the grinding | polishing member in the same modification as FIG.

Hereinafter, an embodiment in which a polishing apparatus, a polishing member correction method, a shape processing cutting tool, and a surface correction tool of the present invention are embodied will be described with reference to FIGS.
As shown in FIG. 1, the polishing apparatus includes a disk-shaped polishing member 10. Using the outer peripheral surface of the polishing member 10 in the radial direction, the end KE, which is the portion to be polished, of the workpiece K is polished. The end KE is curved by pre-processing. The shape of the workpiece K can be any shape depending on the application.

  As the material of the polishing member 10, an optimum material for polishing the end KE can be arbitrarily used. For example, when a resin is used as the material of the polishing member 10, any synthetic resin can be used. Examples thereof include a thermosetting resin (phenol resin, epoxy resin, urethane resin, polyimide, etc.) and a thermoplastic resin (polyethylene, polypropylene, acrylic resin, polyamide, polycarbonate, etc.). Further, it may be a woven fabric, a non-woven fabric, a non-woven fabric processed resin product, synthetic leather, or a composite product thereof. The hardness of the polishing surface of the polishing member 10 is preferably 5 or more in Shore A hardness. A Shore A hardness of 5 or more means that a polishing member 10 that is a specimen whose hardness is to be measured and has a polishing surface is placed in a dry state at a humidity of 20 to 60% at room temperature for 60 minutes or more, and is then placed in JIS K6253. It means that the hardness of the polished surface measured by a compliant rubber hardness meter (type A) is 5 or more. When the Shore A hardness is 5 or more, the surface of the workpiece K can be suitably processed, and the polishing surface of the polishing member 10 can be prevented from being deformed by short-time polishing.

The Shore A hardness of the polishing surface of the polishing member 10 is more preferably 40 or more, still more preferably 70 to 95, and particularly preferably 70 to 85.
Further, when a metal is used as the material of the polishing member 10, magnesium, aluminum, titanium, iron, nickel, cobalt copper, zinc, manganese, or an alloy mainly composed thereof can be used as the material.

  In addition, when using resin or a metal as a material of the grinding | polishing member 10, the grinding | polishing member 10 may have an abrasive grain. The type of abrasive grains used is not particularly limited, but metal oxide particles such as silicon oxide, aluminum oxide, zirconium oxide, cerium oxide, magnesium oxide, calcium oxide, titanium oxide, manganese oxide, iron oxide, and chromium oxide, and carbonized Carbides such as silicon, other nitrides, borides, diamonds and the like can be used.

  Further, when ceramics are used as the material of the polishing member 10, as materials, ceramics, glass, oxides such as silicon, aluminum, zirconium, calcium, barium, nitrides, borides, carbides, etc. Aluminum, zirconium oxide, silicon oxide, silicon carbide, silicon nitride, boron nitride and the like can be used.

  Any material can be used for the workpiece K to be polished. For example, when a resin is used as the material of the workpiece K, any synthetic resin can be used. Examples thereof include a thermosetting resin (phenol resin, epoxy resin, urethane resin, polyimide, etc.) and a thermoplastic resin (polyethylene, polypropylene, acrylic resin, polyamide, polycarbonate, etc.).

  When ceramics are used as the material of the workpiece K, ceramics, glass, fine ceramics, oxides such as silicon, aluminum, zirconium, calcium, barium, carbides, nitrides, borides, etc. Can be used.

  Further, when a metal is used as the material of the workpiece K, magnesium, aluminum, titanium, iron, nickel, cobalt, copper, zinc, manganese or an alloy containing the same as the main component can be used. .

  The specific use of the workpiece K is also arbitrary. For example, a wheel, a shaft, a container, a housing (a case, a housing, etc.), a frame (a frame, etc.), a ball, a wire, a decorative article, and the like can be used.

  As shown in FIG. 2, the polishing member 10 is detachably fixed to the upper surface of a disk-shaped surface plate 20. A rotation shaft of the first motor 21 is fixed to the lower surface of the center portion of the surface plate 20. When the first motor 21 is driven to rotate, both the surface plate 20 and the polishing member 10 rotate. The first motor 21 is provided under the polishing member 10 and the surface plate 20, and the polishing member 10 disposed on the upper surface of the surface plate 20 is rotated together with the identification plate 20 from the bottom, so that the shaft shake and the like are stable. Since the rotation of the polishing member 10 can be obtained, more accurate processing can be performed.

  A polishing surface 11 having a groove-like curved surface extending in the circumferential direction is provided on the outer circumferential surface of the polishing member 10 in the radial direction. The curved surface of the polishing surface 11 is shaped along the shape of the end KE of the workpiece K (the shape of the portion to be polished). That is, the curvature of the polished surface 11 is the same as the curvature of the end KE.

  The workpiece K is detachably held on the fixed base 32. The fixed base 32 is fixed to the rotating shaft 31 of the second motor 30. The second motor 30 is attached to a motor moving mechanism 33 that reciprocates the second motor 30 in a direction orthogonal to the rotation axis of the polishing member 10 (the direction of the arrow X shown in FIGS. 1 and 2). When the second motor 30 is moved by the motor moving mechanism 33, the second motor 30, the rotating shaft 31, the fixed base 32, and the workpiece K to be polished are integrated in a direction orthogonal to the rotating shaft of the polishing member 10. Move to. By such movement of the second motor 30 by the motor moving mechanism 33, the end KE of the workpiece K is pressed against the polishing surface 11. Then, the working fluid or the like is supplied to the contact portion between the end KE and the polishing surface 11 in an appropriate manner, and the first motor 21 and the second motor 30 are driven at a predetermined rotational speed, whereby a curved surface is obtained. The end KE having the shape is polished. Note that when the end KE of the workpiece K is pressed against the polishing surface 11, the pressing force is adjusted so that a predetermined pressure is applied.

  The machining liquid can be directly supplied from the outside to the contact portion between the end KE and the polishing surface 11. Alternatively, a machining fluid supply mechanism such as a rotary joint is interposed at the connection portion between the polishing member 10 and the first motor 21. Then, the machining liquid is supplied from the machining liquid supply mechanism to the inside of the polishing member 10, and the machining liquid supplied to the inside of the polishing member 10 is supplied to the contact portion through a supply path formed inside the polishing member 10. It can also be supplied. Thus, by supplying the processing liquid from the inside of the polishing member 10 toward the contact portion, the processing liquid can be supplied more efficiently. Further, in order to use the machining fluid efficiently, it is further preferable to provide a recovery device that provides a cover around the polishing member 10 to increase the recovery efficiency of the machining fluid.

  As the type of the above-described machining liquid, an appropriate one can be used according to the material to be polished K or the polishing member 10. Specifically, cutting and grinding working fluids, lapping materials, polishing agents, chemical mechanical polishing polishing fluids, and the like can be used. The processing liquid may contain abrasive grains. The type of abrasive grains used is not particularly limited, but metal oxide particles such as silicon oxide, aluminum oxide, zirconium oxide, cerium oxide, magnesium oxide, calcium oxide, titanium oxide, manganese oxide, iron oxide, and chromium oxide, and carbonized Carbides such as silicon, nitrides, borides, diamonds and the like can be used.

  For example, the content of abrasive grains in the working fluid is preferably 1% by mass or more, and more preferably 2% by mass or more. Moreover, it is preferable that content of the abrasive grain in a processing liquid is 50 mass% or less, More preferably, it is 40 mass% or less.

  The average secondary particle diameter of the abrasive grains in the working fluid is preferably 0.1 μm or more, more preferably 0.3 μm or more. As the average secondary particle diameter of the abrasive grains increases, the processing speed by the processing liquid is improved.

  On the other hand, the average secondary particle diameter of the abrasive grains in the working fluid is preferably 20 μm or less, more preferably 5 μm or less. As the average secondary particle diameter of the abrasive grains in the processing liquid decreases, the surface of the workpiece K can be more uniformly polished. Incidentally, the average secondary particle size of abrasive grains is, for example, the volume average particle size measured using a laser diffraction / scattering particle size distribution measuring device such as “LA-950” manufactured by Horiba Ltd. is there.

  In the above-mentioned processing liquid, a pH adjuster, an etching agent, an oxidizing agent, a water-soluble polymer, a copolymer and a salt thereof, a derivative, an anticorrosive agent, a chelating agent, a dispersion aid, an antiseptic agent, and an antifungal agent, as necessary It may further contain other components such as an agent.

  As examples of the pH adjusting agent, known acids, bases, or salts thereof can be used. Examples of acids that can be used as pH adjusters include inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, boric acid, carbonic acid, hypophosphorous acid, phosphorous acid, and phosphoric acid, formic acid, acetic acid, Propionic acid, butyric acid, valeric acid, 2-methylbutyric acid, n-hexanoic acid, 3,3-dimethylbutyric acid, 2-ethylbutyric acid, 4-methylpentanoic acid, n-heptanoic acid, 2-methylhexanoic acid, n-octane Acid, 2-ethylhexanoic acid, benzoic acid, glycolic acid, salicylic acid, glyceric acid, oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, maleic acid, phthalic acid, malic acid, tartaric acid, citric acid Lactic acid, diglycolic acid, 2-furancarboxylic acid, 2,5-furandicarboxylic acid, 3-furancarboxylic acid, 2-tetrahydrofurancarboxylic acid, methoxyacetic acid, methoxyphene Le acetate, and phenoxy organic acids such as acetic acid.

  Examples of bases that can be used as pH adjusters include amines such as aliphatic amines and aromatic amines, organic bases such as quaternary ammonium hydroxide, alkali metal hydroxides such as potassium hydroxide, alkaline earth metal A hydroxide, ammonia, etc. are mentioned.

  Moreover, you may use salts, such as an ammonium salt of the said acid, an alkali metal salt, etc. as a pH adjuster instead of the acid mentioned above or combining with the acid mentioned above. Such a pH adjuster is used to adjust the pH value of the processing liquid to an optimum value that varies depending on the type of workpiece K to be polished.

  Examples of the etching agent include inorganic acids such as nitric acid, sulfuric acid and phosphoric acid, acetic acid, citric acid, organic acids such as tartaric acid and methanesulfonic acid, inorganic alkalis such as potassium hydroxide and sodium hydroxide, ammonia, amines, And organic alkalis such as quaternary ammonium hydroxides.

  Examples of the oxidizing agent include hydrogen peroxide, peracetic acid, percarbonate, urea peroxide, perchlorate, persulfate and the like, oxo acids such as sulfuric acid, nitric acid, phosphoric acid and salts thereof, and the like. Examples include salts.

  Examples of the above water-soluble polymers, copolymers, salts and derivatives thereof include polycarboxylic acids such as polyacrylates, polysulfonic acids such as polyphosphonic acid and polystyrene sulfonic acid, polysaccharides such as chitansan gum and sodium alginate, hydroxy Cellulose derivatives such as ethyl cellulose and carboxymethyl cellulose, polyethylene glycol, polyvinyl alcohol, polyvinyl pyrrolidone, sorbitan monooleate, oxyalkylene polymers having one or more oxyalkylene units, nonionic surfactants, anionic surfactants Agents and the like. Examples of nonionic surfactants include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, sorbitan monooleate, oxyalkylene polymers having a single kind or plural kinds of oxyalkylene units. Examples of anionic surfactants include alkyl sulfonic acid compounds, alkyl benzene sulfonic acid compounds, alkyl naphthalene sulfonic acid compounds, methyl tauric acid compounds, alkyl diphenyl ether disulfonic acid compounds, α-olefin sulfonic acid compounds, Naphthalenesulfonic acid condensate, sulfosuccinic acid diester compound and the like.

  Examples of the anticorrosives include amines, pyridines, tetraphenylphosphonium salts, benzotriazoles, triazoles, tetrazoles, benzoic acid, monocyclic compounds, polycyclic compounds having a condensed ring, heterocyclic compounds, etc. Is mentioned.

  Examples of the chelating agents include carboxylic acid chelating agents such as gluconic acid, amine chelating agents such as ethylenediamine, diethylenetriamine, and trimethyltetraamine, ethylenediaminetetraacetic acid, nitrilotriacetic acid, hydroxyethylethylenediaminetriacetic acid, triethylenetetramine hexa Polyaminopolycarboxylic chelating agents such as acetic acid and diethylenetriaminepentaacetic acid, 2-aminoethylphosphonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, aminotri (methylenephosphonic acid), ethylenediaminetetrakis (methylenephosphonic acid), diethylenetriaminepenta (Methylenephosphonic acid), ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, methanehydroxyphosphonic acid, 1-phosphonobutane-2,3,4 Organic phosphonic acid chelating agent, such as a tricarboxylic acid, a phenol derivative, 1,3-diketones and the like.

Examples of the dispersion aid include condensed phosphates such as pyrophosphate and hexametaphosphate.
Examples of the preservative include sodium hypochlorite and the like.

Examples of the antifungal agent include oxazolines such as oxazolidine-2,5-dione.
Incidentally, if the diameter of the polishing member 10 is made as large as possible within a range where the polishing accuracy can be suitably maintained, the end portions KE of the plurality of workpieces K can be simultaneously polished on the outer peripheral surface of the polishing member 10. , Productivity can be improved. Further, if the diameter of the polishing member 10 is made as large as possible, even if the rotation speed of the polishing member 10 is the same, a large linear velocity can be obtained on the outer periphery. Even if it is relatively low, a sufficient linear velocity can be obtained. Therefore, for example, scattering of the processing liquid can be suppressed.

As shown in FIG. 1, a contact mechanism 40 is provided at a position near the outer peripheral surface in the radial direction of the polishing member 10 and facing the polishing surface 11.
The contact mechanism 40 is provided with a tool 41. The tool 41 has a rod shape, and the processed portion at the tip thereof has the same shape as the shape of the end KE, more specifically, the same curvature as the curvature of the end KE. The tool 41 functions as a shape cutting tool for processing the polishing surface 11 into a shape along the shape of the end KE, or as a surface correction tool for correcting the polishing surface 11 into a shape along the shape of the end KE. To do. As the material of the tool 41, an optimum material for processing or correcting the polishing surface 11 is selected. Further, the shape of the end KE of the workpiece K and the shape of the tool 41 are not necessarily the same, and the shapes may be slightly different from each other to the extent that there is no practical problem.

  The contact mechanism 40 includes a holding portion 42 to which the tool 41 is detachably fixed, and a moving mechanism for reciprocating the holding portion 42 in a direction perpendicular to the rotation axis of the polishing member 10 (in the direction of arrow M shown in FIG. 1). 43 is also provided. In addition, as a power source of the moving mechanism 43, electric power, hydraulic pressure, or the like can be used. The contact mechanism 40 is driven by automatic driving by a control device including a CPU, RAM, ROM, or the like, or by a switch operation of an operator who operates the polishing apparatus.

3 and 4 show an operation mode of the contact mechanism 40.
As shown in FIG. 3, when the holding unit 42 is moved toward the rotation center of the polishing member 10 (in the direction of the arrow M <b> 1) by the contact mechanism 40, the tool 41 contacts the polishing surface 11. More specifically, the tool 41 is pressed against the polishing surface 11.

  When the tool 41 is pressed against the polishing surface 11, constant pressure processing can be performed, but it is more preferable to perform constant size processing (fixed cut processing). The constant pressure processing is a processing method mainly used for improving the surface roughness, and is a processing method in which the tool 41 is pressed against the polishing surface 11 with a constant pressing force for polishing. On the other hand, the sizing processing is a processing method mainly used for finishing the shape, and is a processing method in which the tool 41 is cut into the polishing surface 11 by a certain dimension and ground. Since the sizing process is suitable for finishing the shape, it is suitable for a processing method when the shape of the polishing surface 11 is corrected or processed using the tool 41, and compared with a case where constant pressure processing is performed. The shape can be corrected and processed with higher accuracy.

  In addition, as the processing method when the shape of the polishing surface 11 is corrected or processed using the tool 41, the above-described constant pressure processing can be performed. In this case, for example, the surface roughness of the workpiece K to be polished is determined. It is possible to perform processing for the purpose of improving accuracy, and it is possible to perform suitable processing mainly when the tool 41 is a surface correction tool and the polishing surface 11 is corrected.

As shown in FIG. 4, when the holding unit 42 is moved by the contact mechanism 40 in a direction away from the rotation center of the polishing member 10 (in the direction of the arrow M <b> 2), the tool 41 is separated from the polishing surface 11.
Basically, the tool 41 is arranged at a position in FIG. 4 away from the polishing surface 11. In addition, when the accumulated value of the polishing time exceeds a predetermined value, for example, when the operator performs a switch operation, the tool 41 is rotated in a state where the polishing member 10 is driven to rotate. 3 is brought into contact with the polishing surface 11.

  When the tool 41 is in contact with the polishing surface 11, it is preferable to supply water or a working fluid to the contact portion between the tool 41 and the polishing surface 11. In this case, the processing or correction of the polishing surface 11 by the tool 41 can be assisted, or the contact portion can be cooled.

  The kind of working fluid to be used can be arbitrarily selected according to the kind of the cutting tool for shape processing or the tool for surface correction, or according to the material of the polishing member. For example, when a cutting tool is used, a cutting fluid can be used. When using a processing tool with fixed abrasive, a working fluid for grinding can be used. When a hard brush is used, a cleaning solution or the like can be used.

According to this embodiment described above, the following effects can be obtained.
(1) The polishing apparatus includes a polishing member 10 having a polishing surface 11 having a shape along the shape of the end KE of the workpiece K to be polished. Therefore, even if the end KE of the workpiece K is different from a flat shape, that is, a curved shape, the end KE can be polished.

  (2) The polishing apparatus has the same shape as the shape of the end portion KE, a tool 41 for correcting or processing the polishing surface 11 into a shape along the shape of the end portion KE, and a tool for the polishing surface 11 And a contact mechanism 40 for bringing 41 into contact therewith. Therefore, as shown in FIG. 3, the shape of the tool 41 having the same curvature as the shape of the end KE of the workpiece K is transferred to the polishing surface 11 with which the tool 41 is in contact. Then, it is corrected or processed into a shape along the shape of the end KE of the workpiece K to be polished.

  As described above, the polishing surface 11 of the polishing member 10 has a shape along the shape of the end KE of the workpiece K to be polished. The shape of the polishing surface 11 and the shape of the tool 41 are concave on one side and the other is on the other side. Convex relationship. Therefore, the shape processing or shape correction of the polished surface 11 having a shape different from the planar shape, that is, the curved shape can be easily performed.

  (3) The contact of the tool 41 with the polishing surface 11 by the contact mechanism 40 is performed at predetermined intervals. Therefore, since the polishing surface 11 is corrected every predetermined period, it is possible to maintain the polishing accuracy when polishing the end KE of the workpiece K to be polished over a long period of time.

In addition, the said embodiment can also be changed and implemented as follows.
The correction of the polishing surface 11 by the tool 41 is performed during polishing of the workpiece K to be polished, or is performed at the same time as polishing using a part or all of the time during polishing of the workpiece K to be polished. May be.

  The cutting tool for shape processing described above is capable of appropriately processing the polishing surface of the polishing member, and is not particularly limited as long as it has a processed portion having a hardness higher than the polishing surface of the polishing member. As a specific example, it is possible to use a processing tool with fixed abrasives such as pellets or an electrodeposition grindstone, or a cutting tool such as an end mill or a bite.

  When the above-described electrodeposition grindstone is used, the abrasive grains may drop off when the polishing surface 11 of the polishing member 10 is cut, and the surface of the workpiece K may be damaged. Such scratches require special attention when grinding the polished surface 11 with an electrodeposition grindstone during polishing of the workpiece K to be polished by the polishing member 10. Therefore, by performing a treatment for coating the surface of the electrodeposited grindstone with a hard layer, for example, coating with DLC (diamond-like carbon), it is possible to prevent the above-mentioned abrasive grains from falling off. Can be suppressed.

  The above-mentioned surface correction tool is a tool capable of adjusting the surface of the polishing member or removing dirt or fixed matter adhering to the surface, and as a specific example, the processing tool with fixed abrasive Alternatively, a hard brush or the like can be used.

  As shown in FIG. 5, the tool 41 functioning as a shape processing cutting tool or surface correction tool has the same shape as the end KE of the workpiece K, and the polishing surface 11 You may make it use the rotary cutter which equips the outer periphery with the blade corrected to the shape along the shape of the edge part KE.

  FIG. 5 shows a schematic configuration of a polishing apparatus according to this modification. As shown in FIG. 5, a contact mechanism 60 is provided near the outer peripheral surface in the radial direction of the polishing member 10 and at a position facing the polishing surface 11. The contact mechanism 60 is provided with the cutter 50 as described above and a moving mechanism that reciprocates the rotation axis of the cutter 50 in a direction orthogonal to the rotation axis of the polishing member 10 (the direction of arrow M shown in FIG. 5). When the cutter 50 is moved toward the rotation center of the polishing member 10 (in the direction of the arrow M1) by the contact mechanism 60, the blade of the cutter 50 is brought into contact with the polishing surface 11 as shown by a two-dot chain line in FIG. Contact. On the other hand, when the cutter 50 is moved by the contact mechanism 60 in a direction away from the rotation center of the polishing member 10 (in the direction of the arrow M <b> 2), the blade of the cutter 50 is separated from the polishing surface 11. Even in such a modified example, the shape of the polishing surface 11 and the shape of the blade of the cutter 50 are in a relationship in which one is concave and the other is convex, so that the polishing surface 11 has a shape different from a flat shape, that is, a curved shape. The shape can be easily corrected.

A tool different from the tool 41 described above may be used as a tool that functions as a cutting tool for shape processing or a tool for surface correction. Some of these variations are described below.
6 has a plurality of cutting blades 210 extending in the axial direction at intervals in the circumferential direction. The outer shape of the cutting edge 210 at the tip end portion 210a of the cutting tool 200 for shape processing has the same curvature as the curvature of the end portion KE. When such a cutting tool for shape machining 200 is used instead of the tool 41, the polishing surface 11 of the polishing member 10 is made to contact the tip surface 210a with the polishing surface 11 while rotating the cutting tool for shape machining 200. It can be processed into a shape along the shape of the end KE.

  Another shape cutting tool 300 shown in FIGS. 7 (A) and 7 (B) has a flat plate shape, and a tip 310 thereof has a circular cutting edge having the same curvature as that of the end KE. It has become. Further, as shown in FIG. 7B, the thickness of the cutting tool 300 for shape processing becomes thinner toward the tip portion 310. Even when such a shape machining cutting tool 300 is used instead of the tool 41, the polishing surface 11 of the polishing member 10 is made to contact the tip surface 310 with the polishing surface 11 while rotating the shape machining cutting tool 300. It can be processed into a shape along the shape of the end KE. A plurality of such flat shape cutting tools 300 may be used in combination. For example, a plurality of shape cutting tools 300 may be combined so that they intersect each other at a fixed angle such as 60 ° or 90 °. Also good.

  Another cylindrical surface correcting tool 400 shown in FIG. 8 includes a hard brush 410 at the tip. The tip of the brush 410 has a hemispherical shape as a whole, and the curvature of the hemispherical shape has substantially the same curvature as that of the end KE. When such a surface correction tool 400 is used instead of the tool 41, the polishing surface 11 of the polishing member 10 is brought into contact with the end KE by bringing the brush 410 into contact with the polishing surface 11 while rotating the surface correction tool 400. It can be corrected to a shape along the shape.

  In the above embodiment, the polishing member 10 provided with the curved polishing surface 11 in advance is fixed to the surface plate 20. However, since the shape of the polishing surface 11 can be formed using a cutting tool for shape processing, for example, a polishing member that does not have a surface having a shape along the shape of the portion to be polished is prepared, and shape processing is performed. You may form the grinding | polishing surface of the shape along the shape of the to-be-polished part of a to-be-polished workpiece using the cutting tool for an object. As an example of this, as shown in FIGS. 9 to 11, by bringing the outer peripheral surface of the polishing member 10 </ b> A having a shape different from the shape of the end KE of the workpiece K into contact with the tool 41, the end KE is obtained. You may make it form the grinding | polishing surface 11 of the shape along this shape.

  More specifically, as shown in FIG. 9, the polishing member 10 </ b> A whose outer peripheral surface in the radial direction is planar is fixed to the surface plate 20. Then, as shown in FIG. 10, the tool 41 is moved in the radial direction of the polishing member 10A by moving the holding portion 42 toward the rotation center of the polishing member 10A (in the direction of the arrow M1) by the contact mechanism 40. In contact with the outer peripheral surface. More specifically, the tool 41 is pressed against the outer peripheral surface in the radial direction of the polishing member 10A. By the pressing of the tool 41, the polishing surface 11 is formed on the outer peripheral surface of the polishing member 10A which is flat. Note that it is desirable to supply the above-described processing liquid also when forming the polished surface 11. After the polishing surface 11 is formed, the tool 42 is moved by the contact mechanism 40 in a direction away from the center of rotation of the polishing member 10A (in the direction of the arrow M2), as shown in FIG. 41 is separated from the polishing surface 11.

  According to this modification, formation of the polishing surface 11 having a shape along the shape of the end KE of the workpiece K is performed on the polishing apparatus. Therefore, the shape of the polishing surface 11 is formed with higher accuracy than when the polishing member 10 in which the polishing surface 11 having a shape corresponding to the shape of the end KE of the workpiece K is previously formed is attached to the polishing apparatus. Will be able to. Moreover, the trouble of preparing the polishing member 10 on which the polishing surface 11 is formed in advance can be saved.

  As shown in FIG. 12, a polishing surface 71 having the same shape as the polishing surface 11 is provided on one side surface in the longitudinal direction of the linear bar 70. An arbitrary material can be selected as the material of the bar 70. For example, it is preferable to use a material that can be easily bent, such as synthetic resin or brass.

  Then, as shown in FIG. 13, a rod 70 is wound around the disk 80 so that the polishing surface 71 faces outward, and the wound rod 70 is fixed to the disk 80 by an appropriate method. An abrasive member composed of 70 and a disk 80 is made. Even in such an embodiment, a polishing member similar to the polishing member 10 can be formed. In addition, the material of the disk 80 can also be selected arbitrarily. For example, metal or ceramic can be used, but a material that is as light as possible is preferable.

  Incidentally, in the modification shown in FIGS. 12 and 13, the polishing surface 71 is provided on the rod 70 and then the rod 70 is wound around the disk 80. Instead, for example, a linear rod is used. After the material 70 is wound around the disk 80, a polishing surface 71 may be provided on the rod 70.

  According to such a modified example, for example, when the polishing surface 71 is worn out, it is possible to replace only the bar 70 provided with the polishing surface 71. Therefore, compared to the polishing member 10 as described above. Exchange costs can be reduced. Further, when polishing the workpiece K having different shapes of the parts to be polished, it is possible to easily cope with the difference in the shape of the parts to be polished by exchanging the rod 70. become.

  As shown in FIG. 14, a curved surface 91 similar to the polishing surface 11 extending in the circumferential direction is provided on the radially outer peripheral surface of the disc-shaped polishing member 90, and another member is pasted or coated on the curved surface 91. Or a polishing surface may be provided. For example, as shown in FIGS. 15 and 16, a tape-like nonwoven fabric 100 serving as a polishing surface may be attached to a curved surface 91 formed on the outer circumferential surface of the polishing member 90 in the radial direction. In this case, the polishing surface can be returned to a new state by replacing the nonwoven fabric 100. Therefore, for example, a material having a relatively high durability, such as a metal such as stainless steel, is preferably used as the material of the polishing member 90. However, the material of the polishing member 90 can be arbitrarily selected. For example, the polishing member 90 may be made of metal, and the curved surface 91 may be provided with a resin coating serving as a polishing surface. Further, the polishing member 90 may be made of ceramic, and the curved surface 91 may be provided with a resin coating serving as a polishing surface.

Although the polishing member 10 is provided on the upper surface of the surface plate 20, the surface plate 20 may be omitted and the rotation shaft of the first motor 21 may be directly fixed to the center of the polishing member 10.
Although the end KE is pressed against the polishing surface 11 by driving the motor moving mechanism 33, a mechanism for pressing the end KE against the polishing surface 11 may be provided separately.

Although the polishing member 10 is rotated, it may be reciprocated linearly.
-Although the edge part KE of the workpiece K was grind | polished, a to-be-polished part is not limited to such an edge part, Other parts may be sufficient.

  The shape of the end KE of the workpiece K may be a non-planar shape other than a curved surface, for example, a triangular shape as shown in FIG. 17 or a substantially triangular shape as shown in FIG. The shape may have a tinge. Further, the shape of the end KE of the workpiece K may be a staircase shape shown in FIG. 19 or a substantially staircase shape as shown in FIG. 20 with rounded corners. Further, as shown in FIG. 21, the end KE may have a curved shape that is recessed toward the inside of the workpiece K to be polished. Further, it may be a curved surface composed of a plurality of curvatures or a curved surface partially including a straight line portion. Also in these modifications, the end KE is polished by making the polishing surface 11 of the polishing member 10 along the shape of the end KE of the workpiece K (the shape of the part to be polished). Can do.

  As shown in FIG. 2 and the like, in the above-described embodiment, the workpiece K to be polished with respect to the polishing surface 11 is perpendicular to the rotation axis of the polishing member 10 (the direction of the arrow X shown in FIG. 2 and the like). ), The end portion KE of the workpiece K to be polished was polished. In this case, the end KE thus pressed can be polished, but the upper and lower surfaces of the workpiece K, that is, the object to be polished which is parallel to the plane in which the rotation axis of the polishing member 10 is orthogonal. Since both sides of the workpiece K do not require excessive pressure during polishing, there is a possibility that sufficient polishing cannot be performed.

  Therefore, first, the polishing member 10 is formed of a material that has a certain degree of elasticity, such as resin, and that is elastically deformed. As shown in FIG. 22, the width H1 of the polishing surface 11 in the direction parallel to the rotation axis of the polishing member 10 (the direction of the arrow Y shown in FIG. 22) is the thickness T1 of the workpiece K to be polished before processing. That is, it is made smaller by a predetermined amount α than the length between the upper surface KU and the lower surface KD of the workpiece K. As described above, in the modification in which the polishing member 10 is formed of an elastic body and the shape of the polishing surface 11 is smaller than the shape of the workpiece K, the following effects are obtained.

  As shown in FIG. 23, according to this modification, when the workpiece K is pressed against the polishing member 10 for polishing, the upper surface KU and the lower surface KD of the workpiece K are divided by the predetermined amount α. A pressing force F is applied from the polishing member 10 which is elastically deformed only. Therefore, when the workpiece K is polished, not only the end KE but also the upper surface KU and the lower surface KD can be simultaneously polished. As the predetermined amount α is increased, the amount of elastic deformation of the polishing member 10 when polishing the workpiece K is increased. Therefore, by optimizing the predetermined amount α, the workpiece K can be polished. The pressing force F applied to the upper surface KU and the lower surface KD can be optimized.

  Further, by adjusting the force for pressing the end KE of the workpiece K to the polishing surface 11 and the pressing force F applied to the upper surface KU and the lower surface KD of the workpiece K as necessary, The workpiece K can be appropriately processed.

DESCRIPTION OF SYMBOLS 10, 10A, 90 ... Polishing member, 11 ... Polishing surface, 20 ... Surface plate, 21 ... 1st motor, 30 ... 2nd motor, 31 ... Rotating shaft, 32 ... Fixed stand, 33 ... Motor moving mechanism, 40 ... Contact Mechanism: 41 ... Tool, 42 ... Holding part, 43 ... Moving mechanism, 50 ... Cutter, 60 ... Contact mechanism, 70 ... Bar material, 71 ... Polished surface, 80 ... Disc, 91 ... Curved surface, 100 ... Nonwoven fabric, 200 ... Shape Cutting tool for processing, 210: Cutting edge, 210a: Tip portion, 300: Cutting tool for shape processing, 310: Tip portion, 400 ... Tool for surface correction, 410 ... Brush, K ... Workpiece to be polished, KE ... End of polishing workpiece, KU ... upper surface of workpiece to be polished, KD ... lower surface of workpiece to be polished.

Claims (9)

A polishing member formed of a resin having a polishing surface along the shape of the part to be polished of the workpiece, a woven fabric, a non-woven fabric, a non-woven resin processed product, synthetic leather, or a composite product thereof,
A tool for processing or correcting the polished surface into a shape along the shape of the portion to be polished, having the same shape as the shape of the portion to be polished;
A polishing apparatus comprising a contact mechanism for contacting the tool with the polishing surface, wherein the polishing member is configured by winding a replaceable bar around a disk . The polishing apparatus according to claim 1, wherein the contact of the tool with the polishing surface by the contact mechanism is performed at predetermined intervals. The polishing apparatus according to claim 1, further comprising a motor that rotates the polishing member from below. The polishing apparatus according to claim 1, further comprising a surface plate that rotates integrally with the polishing member in a state where the polishing member is placed on an upper surface. The polishing apparatus according to claim 1, wherein a polishing surface of the polishing member is a curved surface.   The polishing apparatus according to claim 5, wherein the curved surface is configured with a plurality of curvatures, or includes a straight portion in part. It is a member used with the grinding | polishing apparatus of any one of Claims 1-6 , Comprising: It has the same shape as the shape of the said to-be-polished part, and is comprised by winding an exchangeable bar around a disk. A tool for processing or correcting the polished surface of the polished polishing member into a shape along the shape of the portion to be polished. Resin performed in the polishing apparatus according to any one of claims 1 to 6 woven, nonwoven, nonwoven resin processed article, synthetic leather, or processing or correction method of the polishing member which is formed of these composite articles A method for processing or correcting a polishing member, comprising bringing the tool into contact with a polishing surface of the polishing member formed by winding a replaceable bar around a disk . A method for producing an abrasive member formed of a resin, a woven fabric, a non-woven fabric, a non-woven fabric resin processed product, a synthetic leather, or a composite product thereof, which is performed in the polishing apparatus according to any one of claims 1 to 6. ,
By contacting the configured and surface of a polishing member having a shape different from the shape of the polished section by winding a replaceable bar in a disk to the tool, the polished section of the polishing surface of the polishing member The manufacturing method of the polishing member including forming in the shape along the shape of this.