TWI689378B - Polishing apparatus, method for machining polishing member, method for modifying polishing member, cutting tool for machining shape, and tool for modifying surface - Google Patents

Abstract

An object of the present invention is to provide a polishing device that can easily perform shape processing or shape modification of a polishing surface having a shape different from a planar shape. The polishing device includes: a polishing member (10) having a polishing surface having a shape along the end (KE) of the workpiece (K) to be polished; a tool (41) having the same shape as the shape of the end (KE) It can be used as a cutting tool for shape processing that polishes the polished surface of the polishing member (10) into a shape along the end (KE) or a surface trimming tool that trims the polished surface into a shape along the shape of the polished portion And a contact mechanism (40), so that the tool (41) contacts the polishing surface of the polishing member (10).

Description

Polishing device, processing method of polishing member, dressing method of polishing member, cutting tool for shape processing and tool for surface finishing

The invention relates to a polishing device, a processing method of a polishing member, a dressing method of a polishing member, a cutting tool for shape processing and a tool for surface finishing.

As described in Patent Document 1, when the polished part of the object to be polished (object to be polished) is polished by the polishing member, the shape of the polishing surface of the polishing member is gradually changed. For this reason, the grinding surface is generally trimmed to restore the original shape, so-called trimming.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 11-188590

[Summary of the Invention]

However, the above-mentioned conventional dressing is mostly for the purpose of dressing a planar polishing surface, and almost no consideration is given to dressing of various shapes of polishing surfaces along the shape of the portion to be polished of the workpiece.

The present invention was developed in view of the above circumstances, and its object is to provide a polishing device, a method for processing a polishing member, and a method for dressing a polishing member, which can easily perform shape processing or shape modification of a polishing surface having a shape different from a planar shape . Furthermore, a cutting tool for shape processing used for processing the shape of the polished surface used by the polishing apparatus and the processing method, or a dressing surface used by the polishing apparatus and the processing method for trimming the polishing surface along the shape of the portion to be polished Tool for shaping the surface.

The polishing device for solving the above-mentioned problem includes: a polishing member having a polishing surface having a shape along the shape of the portion to be polished; and having the same shape as the shape of the polishing portion, and processing the polishing surface along the above A cutting tool for shape processing of the shape of the portion to be polished or a surface trimming tool for trimming the polished surface to a shape along the shape of the polishing portion; and bringing the cutting tool for shape processing or the surface trimming tool into contact with the polishing surface Contact agencies.

In the same configuration, the polishing member has a polishing surface shaped along the shape of the portion to be polished of the workpiece. Therefore, the workpiece to be polished is polished The portion can be polished even if it has a shape different from a flat surface such as a curved surface or a triangle.

Here, in the same configuration, a cutting tool for shape processing or a trimming of the polished surface along the shape of the polished portion by the contact mechanism such that the polished surface has the same shape as the shape of the polished portion The surface-shaping tool in the shape of the above-mentioned polishing portion contacts the polishing surface. Therefore, the grinding surface in contact with the cutting tool for shape processing or the tool for surface finishing transfers the cutting tool for shape processing or the tool for surface finishing having the same shape as the shape of the portion to be polished of the workpiece to be processed or It is trimmed to a shape along the shape of the portion to be polished. As described above, although the polishing surface of the polishing member has the shape of the part to be polished of the workpiece to be polished, the shape of the polishing surface and the shape processing cutting tool or surface trimming tool are concave on one side and convex on the other Because of the above-mentioned relationship, it is easy to carry out the shape processing or shape modification of the polishing surface having a different shape from the planar shape.

In addition, the shape of the portion to be polished of the object to be polished is not necessarily the same as the shape of the cutting tool for shape processing or the tool for surface finishing, and may be slightly different from each other to the extent that there is no practical problem.

In addition, the cutting tool for shape processing is a polishing surface that can properly process the polishing member, and it is not particularly limited as long as it has a processed portion having a higher hardness than the polishing surface of the polishing member, and specific examples include the use of particles or electrocoat grinding wheels, etc. Abrasive processing tools, cutting tools such as end mills or cutter heads.

Moreover, as a tool for surface finishing, the surface of the polishing member can be made Tools for smoothing or removing dirt or fixed substances adhering to the surface of the polishing member, specifically, the above-mentioned processing tools with fixed abrasive particles or hard brushes, etc. can be used.

In addition, it is preferable that the above-mentioned polishing apparatus contacts the cutting tool or the tool for surface finishing on the polishing surface by the contact mechanism at each predetermined cycle. According to the same configuration, the polishing surface is processed or trimmed at each predetermined cycle, so the polishing accuracy when polishing the workpiece to be polished can be appropriately maintained.

In addition, in the above-mentioned polishing apparatus, the polishing surface of the polishing member is formed by contacting the surface of the polishing member having a shape different from that of the portion to be polished with the cutting tool for shape processing or the tool for surface finishing, thereby forming The shape of the shape of the polishing part is preferable.

According to the same configuration, the formation of the polishing surface along the shape of the portion to be polished of the workpiece to be polished is performed on the polishing device. Therefore, it is possible to form the shape of the polishing surface as described above with higher accuracy compared to a case where a polishing member having a polishing surface formed in advance along the shape of the portion to be polished is attached to the polishing device.

In addition, it is preferable that the polishing device includes a motor that rotates the polishing member from below, or a machine tool table that rotates integrally with the polishing member in a state where the polishing member is placed on the top. According to such a configuration, it is possible to obtain a stable rotation of the grinding member with low vibration such as shaft chattering, and therefore, it is possible to perform processing with higher accuracy.

Moreover, it has the same shape as the shape of the to-be-polished portion, and the above-mentioned polishing apparatus uses a cutting tool for shape processing that polishes the polished surface into a shape along the shape of the polished portion, or trims the polished surface along the to-be-polished surface The tool for surface trimming of the shape of the partial shape can easily perform the shape processing or trimming of the polishing surface having a shape different from the planar shape.

In addition, a method of processing or dressing an abrasive member that solves the above-mentioned problems is to use a cutting tool for shape processing that has the same shape as the shape of the portion to be polished and the grinding surface is processed along the shape of the portion to be polished, or to polish the surface The surface trimming tool trimmed to the shape of the to-be-polished portion is in contact with the polishing surface of the polishing member having the polishing surface with the shape of the to-be-polished portion shape of the workpiece to be polished.

In the same method, a polishing member having a polishing surface having a shape along the shape of the portion to be polished is prepared. Therefore, the portion to be polished of the workpiece to be polished can be polished even if the shape is different from the planar shape such as a curved surface or a triangle.

Here, the same method is to shape the cutting tool having the same shape as the shape of the portion to be polished and process the polishing surface into a shape along the shape of the portion to be polished or trim the polishing surface to follow the portion to be polished The shape of the surface finishing tool is in contact with the polishing surface. Therefore, the polishing surface contacted by the cutting tool for shape processing or the tool for surface trimming performs the transfer of the shape of the cutting tool for shape processing or the tool for surface trimming having the same shape as the shape of the portion to be polished This trimming takes a shape along the shape of the portion to be polished of the workpiece. As described above, although the polishing surface of the polishing member has a shape along the shape of the portion to be polished, the shape of the polishing surface and the shape of the cutting tool for surface processing or the tool for surface finishing are formed so that one is concave and the other One of them has a convex relationship, so that it is possible to easily perform the shape modification of the polishing surface having a shape different from the planar shape.

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

10, 10A, 90‧‧‧ abrasive components

11‧‧‧Abrasive surface

20‧‧‧machine table

21‧‧‧ 1st motor

30‧‧‧ 2nd motor

31‧‧‧spindle

32‧‧‧Fixed

33‧‧‧Motor moving mechanism

40‧‧‧ Contact organization

41‧‧‧Tools

42‧‧‧Maintaining Department

43‧‧‧Moving mechanism

50‧‧‧Cutter

60‧‧‧Contact organization

70‧‧‧Bar

71‧‧‧Abrasive surface

80‧‧‧disc

91‧‧‧Curved

100‧‧‧nonwoven

200‧‧‧Cutting tool for shape processing

210‧‧‧Cutting edge

210a‧‧‧Front end

300‧‧‧Cutting tool for shape processing

310‧‧‧Front end

400‧‧‧surface finishing tools

410‧‧‧brush

K‧‧‧Work to be ground

KE‧‧‧(to be processed) end

KU‧‧‧(to be processed)

KD‧‧‧(to be processed)

Fig. 1 is a top view showing a schematic configuration of a polishing device of an embodiment.

Fig. 2 is a side view showing a schematic configuration of the polishing apparatus of the same embodiment.

Fig. 3 is a partial side view of the polishing apparatus showing the state when the cutting tool for shape processing or the tool for surface finishing is in contact with the polishing member in the same embodiment.

Fig. 4 is a partial side view of the polishing apparatus showing the state when the cutting tool for shape processing or the surface finishing tool is separated from the polishing member in the same embodiment.

Fig. 5 is a top view showing a schematic configuration of a polishing device according to a modification of the same embodiment.

Fig. 6 is a side view showing the structure of a cutting tool for shape processing according to another modification of the same embodiment.

Fig. 7(A) is a side view showing the structure of a cutting tool for shape processing according to another modification of the same embodiment. Fig. 7(B) is a cross-sectional view taken along line C-C.

Fig. 8 is a diagram showing the surface modification of other modified examples of the same embodiment Side view of the construction of the tool.

Fig. 9 is a side view showing the operation of the contact mechanism in another modification of the same embodiment.

Fig. 10 is a side view showing the operation of the contact mechanism in the same modified example as Fig. 9.

FIG. 11 is a side view showing the operation of the contact mechanism in the same modified example as FIG. 9.

Fig. 12 is a perspective view showing another modification of the same embodiment.

Fig. 13 is a top view showing a polishing member of the same modified example as Fig. 12.

Fig. 14 is a side view showing another modified example of the same embodiment.

Fig. 15 is a top view showing a polishing member of the same modified example as Fig. 14;

Fig. 16 is a side cross-sectional view showing a polishing member of the same modified example as Fig. 14.

Fig. 17 is a partial side view showing a workpiece to be polished and a polishing member according to another modification of the same embodiment.

Fig. 18 is a partial side view showing a workpiece to be polished and a polishing member according to another modification of the same embodiment.

Fig. 19 is a partial side view showing a workpiece to be polished and a polishing member according to another modification of the same embodiment.

Fig. 20 is a diagram showing another modified example of the same embodiment Partial side view of works and abrasive components.

Fig. 21 is a partial side view showing a workpiece to be polished and a polishing member according to another modification of the same embodiment.

Fig. 22 is a partial side view showing another modified example of the same embodiment.

Fig. 23 is a partial side view showing a polishing member of the same modified example as Fig. 22.

Hereinafter, referring to FIGS. 1 to 4, an embodiment in which the polishing apparatus of the present invention, the dressing method of the polishing member, the cutting tool for shape processing, and the tool for surface dressing are embodied will be described.

As shown in FIG. 1, this polishing apparatus includes a disc-shaped polishing member 10. Using the radial peripheral surface of the polishing member 10, the end KE of the portion to be polished of the workpiece K to be polished is polished. The end portion KE is formed into a curved shape by pre-processing. The shape of the workpiece K to be polished may be any shape according to its use or the like.

The material of the polishing member 10 may be any material other than the polishing end KE. For example, when resin is used as the material of the polishing member 10, any synthetic resin can be used. Examples thereof include thermosetting resins (phenol resin, epoxy resin, polyurethane resin, polyimide, etc.), or thermoplastic resins (polyethylene, polypropylene, acrylic resin, polyimide, polycarbonate, etc.). Also, it may be a woven fabric, a non-woven fabric, a non-woven resin processed product, a synthetic leather, or a composite product of these, and the grinding member 10 may be developed. The hardness of the grinding surface is preferably Shore A hardness 5 or more. The Shore A hardness of 5 or more means a rubber hardness tester based on JIS K6253 after the polishing member 10 having a polished surface of the hardness measurement sample is left at room temperature for 60 minutes or more in a dry state with a humidity of 20 to 60%. (Type A) The measured hardness of the polished surface is 5 or more. When the Shore A hardness is 5 or more, the surface of the workpiece K to be polished can be appropriately processed, and the polishing surface of the polishing member 10 can be prevented from being deformed by polishing in a short time.

Furthermore, the Shore A hardness of the polishing surface of the polishing member 10 is preferably 40 or more, more preferably 70 to 95, and particularly 70 to 85.

In addition, when a metal is used as the material of the polishing member 10, magnesium, aluminum, titanium, iron, nickel, cobalt, copper, zinc, manganese, or alloys containing these as main components can be used.

In addition, when resin or metal is used as the material of the polishing member 10, the polishing member 10 may have abrasive grains. The type of abrasive particles 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, chromium oxide, etc., or Carbides such as silicon carbide, other nitrides, borides, diamonds, etc.

In addition, when ceramic is used as the material of the polishing member 10, in addition to ceramics or glass, oxides, nitrides, borides, carbides, etc. such as silicon, aluminum, zirconium, calcium, and barium, or alumina can be used , Zirconium oxide, silicon oxide, silicon carbide, silicon nitride, boron carbide, etc.

The material of the workpiece K to be polished may be any material. For example, when resin is used as the material of the workpiece K to be polished, any material can be used. Synthetic resin. Examples thereof include thermosetting resins (phenol resin, epoxy resin, polyurethane resin, polyimide, etc.), or thermoplastic resins (polyethylene, polypropylene, acrylic resin, polyimide, polycarbonate, etc.).

In addition, when using ceramics as the material of the workpiece K, in addition to ceramics, glass, or fine ceramics, oxides, carbides, nitrides, and borides such as silicon, aluminum, zirconium, calcium, and barium can be used. Wait.

In addition, when a metal is used as the material of the workpiece K, magnesium, aluminum, titanium, iron, nickel, cobalt, copper, zinc, manganese, or alloys containing these as main components can be used.

In addition, the specific use for the workpiece K to be polished may be arbitrary. For example, rollers, shafts, containers, frames (boxes, casings, etc.), frames (frames, etc.), balls, cables, ornaments, etc. can be used for this purpose.

As shown in FIG. 2, the polishing member 10 is detachably fixed to the upper surface of the disc-shaped machine table 20. The rotating shaft of the first motor 21 is fixed under the center of the machine table 20. When the first motor 21 is driven to rotate, the machine table 20 and the polishing member 10 rotate together. The first motor 21 is provided below the grinding member 10 and the machine tool table 20, and the grinding member 10 disposed on the machine tool table 20 rotates together with the machine tool table 20 from below, thereby obtaining low vibration such as shaft vibration. The rotation of the polishing member 10 is stabilized, and processing with higher accuracy can be performed.

On the radial peripheral surface of the polishing member 10, a polishing surface 11 having a groove-like curved surface shape extending in the peripheral direction is provided. The curved surface of the polishing surface 11 is formed along the end KE shape (shape of the polished portion) of the workpiece K to be polished. That is, the curvature of the grinding surface 11 is the same as the end KE Has the same curvature.

The workpiece K to be polished is detachably held on the fixed table 32. The fixed table 32 is fixed to the rotating shaft 31 of the second motor 30. The second motor 30 is mounted on a motor moving mechanism 33 that reciprocates the second motor 30 in a direction orthogonal to the rotation axis of the polishing member 10 (arrow X direction shown in FIGS. 1 and 2 ). When the motor moving mechanism 33 moves the second motor by this, the second motor 30 and the rotating shaft 31 and the fixed table 32 and the object to be polished K move integrally in a direction orthogonal to the rotating axis of the polishing member 10. By the movement of the second motor 30 of the motor moving mechanism 33 described above, the end KE of the workpiece K is pressed against the polishing surface 11. In addition, the contact portion of the end portion KE and the polishing surface 11 is supplied with processing fluid or the like in an appropriate state, and the first motor 21 and the second motor 30 are driven at a predetermined rotation speed, thereby performing the end portion KE having a curved shape Grinding process. Then, when the end KE of the workpiece K is pressed against the polishing surface 11, the pressing force is adjusted to give a predetermined pressure determined in advance.

The supply of the machining liquid may be directly supplied from the outside to the contact portion of the end KE and the polishing surface 11. Alternatively, a machining fluid supply mechanism such as a coupling is provided at the contact portion between the polishing member 10 and the first motor 21. The machining liquid can be supplied from the machining liquid supply mechanism to the inside of the grinding member 10, and the machining liquid supplied to the inside of the grinding member 10 can be supplied to the contact portion through the supply channel formed inside the grinding member 10. As described above, the machining fluid is supplied from the inside of the polishing member 10 toward the contact portion, and the machining fluid can be further effectively supplied. In addition, in order to effectively use the machining liquid, it is more preferable to provide a cover around the polishing member 10 to provide a recovery device that improves the recovery efficiency of the machining liquid.

The type of the above-mentioned working fluid can be appropriately used according to the material of the workpiece K to be polished or the material of the polishing member 10. Specifically, a machining liquid for grinding or grinding, an abrasive, a polishing agent, a polishing liquid for chemical mechanical polishing, and the like can be used. The machining fluid may also contain abrasive particles. The type of abrasive particles 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, chromium oxide, etc., or Carbide, nitride, boride, diamond, etc. of silicon carbide.

For example, the content of the abrasive particles in the processing fluid is preferably 1% by mass or more, and more preferably 2% by mass or more. In addition, the content of the abrasive particles in the processing fluid is preferably 50% by mass or less, and more preferably 40% by mass or less.

The average secondary particle size of the abrasive particles in the machining fluid is preferably 0.1 μm or more, and more preferably 0.3 μm or more. As the average secondary particle size of the abrasive particles becomes larger, the processing speed of the processing fluid can be increased.

On the other hand, the average secondary particle size of the abrasive particles in the machining fluid is preferably 20 μm or less, and more preferably 5 μm or less. As the average secondary particle size of the abrasive particles in the processing fluid becomes smaller, the surface of the workpiece K to be polished can be more uniformly ground. Incidentally, the average secondary particle size of the abrasive particles is, for example, a volume average particle size measured using a laser diffraction/scattering type particle size distribution measuring device such as "LA-950" manufactured by Excavation Corporation.

The above-mentioned processing liquid may further contain a pH adjuster, an etchant, an oxidizing agent, a water-soluble polymer, a copolymer or a salt thereof, a derivative, an anticorrosive agent, a chelating agent, a dispersion aid, a preservative, and an antifungal agent as needed Other ingredients.

As an example of the above-mentioned pH adjuster, conventional acids, bases, or Such salts. Examples of the acid that can be used as the pH adjuster include inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, boric acid, carbonic acid, hypophosphorous acid, phosphorous acid, and phosphoric acid, or formic acid, acetic acid, propionic acid, butyric acid , Valeric acid, 2-methylbutyric acid, n-hexane, 3,3-dimethylbutyric acid, 2-ethylbutyric acid, 4-methylpentanoic acid, n-heptanoic acid, 2-methylhexyl 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, equine 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, methoxy Organic acids such as acetic acid, methoxyphenylacetic acid and phenoxyacetic acid.

Examples of the base used as the pH adjuster include amines such as aliphatic amines and aromatic amines, organic bases such as fourth ammonium hydroxide, hydroxides of alkali metals such as potassium hydroxide, and alkaline earth metals Hydroxides and ammonium.

In addition, in the substitution of the acid or the combination with the acid, a salt such as an ammonium salt or an alkali metal salt of the acid may be used as a pH adjuster. In addition, the above-mentioned pH adjusting agent is used to adjust the pH value of the processing liquid to the most appropriate value according to different types of the workpiece K to be polished.

Examples of the etchant include inorganic acids such as nitric acid, sulfuric acid, and phosphoric acid, organic acids such as acetic acid, citric acid, tartaric acid, or methanesulfonic acid, inorganic bases such as potassium hydroxide, and sodium hydroxide, ammonia, and amine. , Organic bases such as the fourth-grade ammonium hydroxide.

Examples of the oxidizing agent include hydrogen peroxide, peracetic acid, percarbonate, urea peroxide, perchlorate, and perchlorate, and other carboxylic acids such as sulfuric acid, nitric acid, phosphoric acid, and salts thereof. Or its salts.

Examples of the water-soluble polymers, copolymers, or salts and derivatives thereof include polycarboxylic acids such as polyacrylic acid salts, polyacid acids, sulfonated polystyrene, and the like, xanthan gum, and alginic acid. Polysaccharides such as sodium, cellulose derivatives such as hydroxyethyl cellulose, carboxymethyl cellulose, polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, sorbitol monostearate, with a single or An alkylene oxide polymer of a plurality of alkylene oxide units, a nonionic surfactant, an anionic surfactant, etc. Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, sorbitol monostearate, and single or plural alkylene oxides. Units of alkylene oxide polymers, etc. Examples of the anionic surfactants include alkylsulfonic acid-based compounds, alkylbenzenesulfonic acid-based compounds, alkylnaphthalenesulfonic acid-based compounds, methylaminoethanesulfonic acid-based compounds, and alkyldiphenyl ether disulfonic acid. Acid compounds, α-olefin sulfonate compounds, naphthalenesulfonic acid condensates, sulfosuccinate compounds, and the like.

Examples of the anticorrosive agent include amines, pyridines, tetraphenylphosphonium root salts, benzotriazoles, triazoles, tetrazoles, benzoic acid, etc., monocyclic compounds, and polycyclic compounds having condensed rings , Heterocyclic compounds, etc.

Examples of the chelating agent include carboxylic acid-based chelating agents such as gluconic acid, amine-based chelating agents such as ethylenediamine, diethylenetriamine, and triethylenetetramine, ethylenediaminetetraacetic acid, and nitrilotriacetic acid. , Hydroxyethylethylenediamine triacetic acid, triethylenetetraminehexaacetic acid, diethylenetriaminepentaacetic acid and other polyaminopolycarboxylic acid-based chelating agents, 2-aminoethylphosphoric acid, 1-hydroxyethylene -1,1-diphosphate, aminotri (methylene phosphoric acid), ethylenediamine tetra (methylene phosphoric acid), diethylenetriamine penta (methylene phosphoric acid), ethane-1,1-diphosphate salt, Organic phosphoric acid-based chelating agents such as ethane-1,1,2-triphosphate, methane hydroxysulfonic acid, 1-phosphobutane-2,3,4-tricarboxylic acid, phenol derivatives, 1,3- Dione, etc.

Examples of the above-mentioned dispersion aids include condensed phosphates such as pyrophosphate and hexametaphosphate.

Examples of the preservatives include sodium hypochlorite.

Examples of the antifungal agent include oxazoline such as oxazolidine-2,5-propanedione.

Incidentally, as long as the diameter of the polishing member 10 is increased as much as possible within the range in which the polishing accuracy can be appropriately maintained, the end surface KE of a plurality of workpieces K to be polished can be simultaneously polished on the outer peripheral surface of the polishing member 10, so that productivity can be improved. Moreover, when the diameter of the polishing member 10 is increased as much as possible, even if the rotation speed of the polishing member 10 is the same, since a large linear velocity can be obtained on the periphery, a sufficient line can be obtained even when the rotation speed of the polishing member 10 is relatively low during the polishing process speed. Therefore, for example, it is possible to suppress scattering of the machining fluid described later.

As shown in the previous FIG. 1, a contact mechanism 40 is provided at a position facing the polishing surface 11 in the vicinity of the radial outer surface of the polishing member 10.

The contact mechanism 40 is provided with a tool 41. The tool 41 is rod-shaped, and the processed portion at the tip thereof has the same shape as the shape of the end portion KE, and has more detail and has the same curvature as the curvature of the end portion KE. In addition, the tool 41 has a function of a cutting tool for shape processing that grinds the polishing surface 11 into a shape along the end KE shape, or a surface trimming tool that trims the grinding surface 11 into a shape along the end KE shape. In addition, the material of the tool 41 is the most suitable material except for processing or dressing of the polished surface 11. The shape of the end KE of the workpiece K and the shape of the tool 41 There is no need to be exactly the same, and the degree of practically no problem may be slightly different from each other.

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

3 and 4 show the operation of the contact mechanism 40.

As shown in FIG. 3, when the holding portion 42 is moved toward the rotation center of the polishing member 10 (in the direction of arrow M1) by the contact mechanism 40, the tool 41 contacts the polishing surface 11. In more detail, the tool 41 presses the polishing surface 11.

When the tool 41 is pressed against the polishing surface 11, fixed-pressure processing may be performed, but it is preferable to perform fixed-size processing (fixed-size cutting processing). The constant pressure processing is mainly a processing method used to increase the surface roughness, and a tool 41 is pressed against the polishing surface 11 with a certain pressing force to perform polishing. On the other hand, the fixed-size machining is mainly a machining method used to perform shape finishing, and a machining method in which the tool 41 is ground with a certain depth of cut with respect to the polishing surface 11. As described above, the fixed-size processing is suitable for the finishing of the shape, so it is suitable for the method of trimming or processing the shape of the polishing surface 11 using the tool 41, and the shape can be performed with higher accuracy than when the fixed-pressure processing is performed. Dressing and processing.

In addition, the method of trimming or machining the shape of the polishing surface 11 using the tool 41 may also perform the above-described constant pressure processing. In this case, for example, the accuracy of the surface roughness of the workpiece K may be improved. Processing is mainly because the tool 41 is a tool for surface trimming. When the polishing surface 11 is trimmed, proper processing can be performed.

As shown in FIG. 4, when the holding portion 42 is moved away from the center of rotation of the polishing member 10 (in the direction of arrow M2) by the contact mechanism 40, the tool 41 is separated from the polishing surface 11.

Basically, the tool 41 is arranged at the position of FIG. 4 separated from the polishing surface 11. In addition, at every predetermined cycle, for example, when the cumulative value of the polishing time exceeds a predetermined value, or when the operator performs a switch operation, the tool 41 is directed toward the polishing surface 11 while the polishing member 10 is rotationally driven. Touch the position of Figure 3 to move.

In addition, when the tool 41 is in contact with the polishing surface 11, water or machining fluid can be supplied to the contact portion of the tool 41 and the polishing surface 11. At this time, the processing or dressing of the grinding surface 11 by the tool 41 may be assisted, and the contact portion may be cooled.

The type of machining fluid used depends on the type of cutting tool for shape processing or tool for surface finishing, or the material of the abrasive member, and an appropriate one can be arbitrarily selected. For example, when a tool for cutting is used, a working fluid for cutting can be used. When a processing tool with fixed abrasive particles is used, a machining fluid for grinding can be used. When using a hard brush, you can use a cleaning solution.

According to the present embodiment described above, the following effects can be obtained fruit.

(1) The polishing device 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 has a shape different from the planar shape, that is, a curved surface shape, the end KE can be polished.

(2) The polishing device has a tool 41 that has the same shape as the shape of the end portion KE and performs dressing or processing of the polishing surface 11 along the shape of the end portion KE, and a contact mechanism 40 that causes the tool 41 to contact the polishing surface 11. Therefore, as shown in the previous FIG. 3, the polishing surface 11 contacted by the tool 41 is trimmed or processed along the surface by transferring the shape of the tool 41 having the same curvature as the shape of the end KE of the workpiece K to be polished The shape of the end KE shape of the polished workpiece K.

As described above, although the polishing surface 11 of the polishing member 10 is shaped along the end KE of the workpiece K, the shape of the polishing surface 11 and the shape of the tool 41 are concave on one side and convex on the other relationship. Therefore, it is possible to easily perform the shape processing or the shape modification of the polishing surface 11 having a shape different from the planar shape, that is, the curved surface.

(3) The tool 41 of the contact mechanism 40 contacts the polishing surface 11 every predetermined cycle. Therefore, since the polishing surface 11 is trimmed every predetermined period, the polishing accuracy when polishing the end KE of the workpiece K to be polished can be maintained for a long period of time.

In addition, the above-mentioned embodiment may be implemented as follows.

‧The grinding of the polished surface 11 by the tool 41 may be performed while the workpiece K is being polished, or the workpiece K may be used Part of or all of the time in the grinding is performed simultaneously with the grinding.

‧The cutting tool for shape processing is not limited as long as it can properly process the polishing surface of the polishing member, and has a processed portion with a hardness higher than that of the polishing surface of the polishing member. Specific examples include the use of granules or electro-coated grinding wheels. Cutting tools such as fixed abrasive grain processing tools, end mills or cutter heads.

In addition, when using the above-mentioned electro-coated grinding wheel, when the polishing surface 11 of the polishing member 10 is cut, abrasive particles may fall off and the surface of the workpiece K to be polished may be damaged. Such scratches must be paid attention to when the workpiece K is polished by the polishing member 10, and especially when the electro-coated grinding wheel is used to grind the polishing surface 11. To this end, coating the surface of the electro-coated grinding wheel with a hard layer, for example, coating by DLC (diamond-like carbon), etc., suppresses the shedding of the above-mentioned abrasive particles, thereby suppressing the occurrence of the above-mentioned scratches.

‧The above-mentioned tool for surface finishing is a tool that can smooth the surface of the polishing member, or remove dirt or fixed substances adhering to the surface. Specific examples include the use of a processing tool with the above-mentioned fixed abrasive or a hard brush.

‧As shown in FIG. 5, as the tool 41 having the function of a cutting tool for shape processing or a tool for surface finishing, it is also possible to use the same shape as the shape of the end KE of the workpiece K to be polished, with The surface 11 is a rotary cutter with a cutting edge shaped along the shape of the end KE.

FIG. 5 shows a schematic configuration of the polishing device in this modification. As shown in FIG. 5, the contact mechanism 60 is provided at a position facing the polishing surface 11 near the radial outer surface of the polishing member 10. In the contact mechanism 60 A cutter 50 as described above is provided, 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 (arrow M direction shown in FIG. 5). The contact mechanism 60 moves the cutter 50 toward (in the direction of arrow M1) the center of rotation of the polishing member 10, and the blade of the cutter 50 contacts the polishing surface 11 as indicated by the two dotted lines in FIG. 5. On the other hand, when the cutter 50 is moved away from the rotation center of the polishing member 10 (in the direction of arrow M2) by the contact mechanism 60, the blade of the cutter 50 is separated from the polishing surface 11. Even in the above-described modification, since the shape of the polishing surface 11 and the shape of the blade of the cutter 50 are concave on one side and convex on the other, it is still possible to easily perform a shape different from a planar shape, that is, a curved shape The shape of the polishing surface 11 is trimmed.

‧A tool different from the above-mentioned tool 41 can also be used as a tool having the function of a cutting tool for shape processing or a tool for surface finishing. Several modifications as described above will be described below.

The cylindrical shape cutting tool 200 shown in FIG. 6 is provided with a plurality of cutting edges 210 extending in the axial direction at intervals in the circumferential direction. The outer shape of the cutting edge 210 of the front end portion 210a of the cutting tool 200 for shape processing has the same curvature as the curvature of the end portion KE. When the cutting tool 200 for shape processing is used instead of the tool 41, by rotating the cutting tool 200 for shape processing while bringing the tip portion 210a into contact with the polishing surface 11, the polishing surface 11 of the polishing member 10 can be processed along The shape of the end KE shape.

For other shapes shown in Figure 7(A) and Figure 7(B) The cutting tool 300 is formed into a flat plate shape, and its front end portion 310 forms a circular cutting edge having the same curvature as the curvature of the end portion KE. As also shown in FIG. 7(B), the thickness of the cutting tool 300 for shape processing gradually becomes thinner toward the tip portion 310. When such a cutting tool 300 for shape processing is used instead of the tool 41, the polishing surface 11 of the polishing member 10 may be processed by rotating the cutting tool 300 for shape processing while bringing the tip portion 310 into contact with the polishing surface 11 A shape along the end KE shape. Furthermore, a plurality of flat-shaped cutting tools 300 for shape processing may be used in combination, for example, a plurality of cutting tools for shape processing 300 may be combined to cross each other at a certain angle of 60° or 90°.

FIG. 8 shows another cylindrical surface trimming cutting tool 400, which is provided with a hard brush 410 at its tip portion. The entire shape of the tip of the brush 410 is formed in a hemispherical shape, and the curvature of the hemispherical shape has substantially the same curvature as the curvature of the end KE. When the above surface trimming cutting tool 400 is used instead of the tool 41, the surface trimming cutting tool 400 is rotated so that the brush 410 contacts the polishing surface 11, whereby the polishing surface 11 of the polishing member 10 can be trimmed along the end KE Shape shape.

‧ In the above embodiment, the polishing member 10 provided with the curved polishing surface 11 is fixed to the machine table 20 in advance. However, the shape formation of the polishing surface 11 can be performed using a cutting tool for shape processing, for example, a polishing member having no surface along the shape of the portion to be polished can be prepared, and the cutting tool for shape processing can be used to form The polishing surface of the shape of the part to be polished of the workpiece. For example, as shown in FIGS. 9 to 11, the shape of the end KE having the workpiece K to be polished may be different from the shape The peripheral surface of the polishing member 10A in the shape is in contact with the tool 41 to form a polishing surface 11 having a shape along the shape of the end KE.

In more detail, as shown in FIG. 9, the polishing member 10A whose radial outer surface is planar is fixed to the machine table 20. Then, as shown in FIG. 10, the holding member 42 is moved toward the rotation center of the polishing member 10A (in the direction of arrow M1) by the contact member 40, so that the tool 41 is brought into contact with the radial outer surface of the polishing member 10A. In more detail, the tool 41 is pressed against the radial outer peripheral surface 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 planar polishing member 10A. In the formation of the polishing surface 11, it is also preferable to supply the above-mentioned machining liquid. After the polishing surface 11 is formed, as shown in FIG. 11, by the contact mechanism 40, the holding portion 42 is moved away from the center of rotation of the polishing member 10A (in the direction of arrow M2 ), and the tool 41 is moved from The grinding surface 11 is separated.

With this modification, the formation of the polishing surface 11 along the shape of the end KE of the workpiece K is performed on the polishing device. Therefore, compared with the case where the polishing member 10 in which the polishing surface 11 of the shape of the end KE of the workpiece K is formed in advance is attached to the polishing device, the shape of the polishing surface 11 can be formed with high accuracy. It can save time and labor for preparing the polishing member 10 with the polishing surface 11 formed in advance.

‧ As shown in FIG. 12, a polishing surface 71 having the same shape as the polishing surface 11 is provided on one side surface of the linear rod 70 in the longitudinal direction. Moreover, any material can be selected as the material of the rod 70. For example, a material that is easy to bend is preferably made of synthetic resin or brass.

Further, as shown in FIG. 13, the rod 70 is wound around the disc 80 so that the polishing surface 71 faces outward. The wound rod 70 is fixed to the disc 80 by an appropriate method, thereby producing an abrasive member composed of the rod 70 and the disc 80. In the above aspect, the same polishing member as the above-described polishing member 10 may be formed. Furthermore, the material of the disc 80 can also be arbitrarily selected. For example, although metal or ceramics can be used, it is preferable to use a lightweight material as much as possible.

Incidentally, the modification shown in the previous FIGS. 12 and 13 is that after the rod 70 is provided with the grinding surface 71, the same rod 70 is wound on the disc 80, but instead of this, for example, it may be linear After the rod 70 is wound on the disc 80, the grinding surface 71 is set on the same rod 70.

According to the above modification, for example, when the polishing surface 71 is worn out, only the bar 70 provided with the same polishing surface 71 may be replaced, and the replacement cost can be suppressed compared to the polishing member 10 as described above. In addition, when the shape of the portion to be polished is polished by various workpieces K to be polished, the replacement of the bar 70 can easily cope with the difference in the shape of the portion to be polished as described above.

‧ As shown in FIG. 14, the radial outer surface of the disc-shaped polishing member 90 may be provided with the same curved surface 91 as the above-mentioned polishing surface 11 extending in the peripheral direction, and a surface to which other members are attached may be formed on the curved surface 91 Abrasive surface is provided for coating. For example, FIG. 15 and FIG. 16 show that the band-shaped nonwoven fabric 100 that becomes the polishing surface may be attached to the curved surface 91 formed on the radially outer surface of the polishing member 90. At this time, replacing the nonwoven fabric 100 can restore the polished surface to a new state. Therefore, for example, the material of the polishing member 90 is preferably a relatively durable material, such as a metal such as stainless steel. However, the material of the polishing member 90 can be arbitrarily selected. For example, the polishing member 90 may be made of metal, and a resin coating that becomes the polishing surface may be applied to the curved surface 91. Furthermore, the polishing member 90 may be made of ceramics, and a resin coating to be a polishing surface may be applied to the curved surface 91.

‧Although the polishing member 10 is provided on the upper surface of the machine tool table 20, the machine tool table 20 may be omitted, and the rotating shaft of the first motor 21 may be directly fixed at 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 rotary grinding member 10 is rotated, it can also be moved back and forth in a straight line.

‧Although the end KE of the object K to be polished is polished, the part to be polished is not limited to the above-mentioned end, but may be other parts.

‧The shape of the end KE of the workpiece K may be a non-planar shape other than a curved surface, for example, it may be a triangle as shown in FIG. 17 or a substantially triangular shape as shown in FIG. 18 with a rounded top shape. In addition, the shape of the end portion KE of the workpiece K may be a stepped shape as shown in FIG. 19 or a substantially stepped shape as shown in FIG. 20 and the top portion may be rounded. Also, as shown in FIG. 21, the end portion KE may have a curved shape that is recessed toward the inside of the workpiece K to be polished. Furthermore, a curved surface formed by a plurality of curvatures or a curved surface partially including a straight portion may be used. In these modified examples, the polishing surface 11 of the polishing member 10 has a shape along the end KE shape (shape of the polished portion) of the workpiece K to be polished It can grind the end KE.

‧ As shown in the previous FIG. 2 and the like, the above-mentioned embodiment pushes the workpiece K to be polished toward the polishing surface 11 in the direction orthogonal to the rotation axis of the polishing member 10 (arrow X direction shown in FIG. 2 etc.) As a result, the end KE of the workpiece K is polished. At this time, with respect to the upper and lower surfaces of the object to be polished K that can be polished at the end KE pressed as described above, that is, both surfaces of the object to be polished K that are parallel to the plane orthogonal to the rotation axis of the polishing member 10, No excessive pressure is applied during polishing, and there is a possibility that the polishing process cannot be sufficiently performed.

For this reason, first, the polishing member 10 is formed of a material having a certain degree of elasticity such as resin and elastically deformable. Moreover, as shown in FIG. 22, the width H1 of the polishing surface 11 parallel to the direction of the rotation axis of the polishing member 10 (arrow Y direction shown in FIG. 22) is only greater than the thickness T1 (i.e. The length between the upper KU and the lower KD of the polishing product K is smaller than the predetermined amount α. As described above, the polishing member 10 is formed of an elastic body, and the shape of the polishing surface 11 is formed to be smaller than the shape of the workpiece K to be polished, and the following effects can be obtained.

As shown in FIG. 23, according to this modification, when the object K to be polished is pressed against the polishing member 10 for polishing, the upper surface KU and the lower surface KD of the object K to be polished are given elastic deformation of only the above-mentioned predetermined amount α The pressing force F from the grinding member 10. Therefore, when polishing the workpiece K, not only the end KE, but also the effect of simultaneously grinding the upper KU and the lower KD. Moreover, the larger the above-mentioned predetermined amount α, the larger the amount of elastic deformation of the polishing member 10 when polishing the workpiece K is polished. Therefore, By optimizing the predetermined amount α, the pressing force F given to the upper KU and lower KD of the workpiece K can be optimized.

In addition, the force that pushes the end KE of the workpiece K against the polishing surface 11 and the force F given to the upper surface KU and the lower surface KD of the workpiece K can be adjusted as necessary, thereby enabling proper polishing Processing of object K.

10‧‧‧Abrasive components

40‧‧‧ Contact organization

41‧‧‧Tools

42‧‧‧Maintaining Department

43‧‧‧Moving mechanism

K‧‧‧Work to be ground

KE‧‧‧(to be processed) end

Claims (12)

A polishing device is characterized by comprising: a polishing member having a curved polishing surface along the shape of the portion to be polished; and having the same shape as the portion to be polished, and processing the polishing surface into A curved shape machining tool along the shape of the to-be-polished portion or a surface trimming tool for trimming the polished surface into a curved shape along the shape of the to-be-polished portion; and the cutting tool or surface trimming for the shape processing A contact mechanism for contacting the grinding surface with a tool; the winding member is formed by winding a replaceable bar material on a disc. According to the polishing device described in item 1 of the patent application range, the above-mentioned curved polishing surface is a curved surface composed of a plurality of curvatures or a curved surface partially including a straight portion. The polishing apparatus as described in item 1 of the patent application scope, wherein the above-mentioned polished surface is brought into contact with the cutting tool for shape processing or the tool for surface finishing at each predetermined cycle by a contact mechanism. The polishing apparatus as described in item 1 of the patent application range, wherein the polishing surface of the polishing member is formed by winding a replaceable bar material on a disc and has a shape different from that of the portion to be polished The surface of the polishing member is in contact with the cutting tool for shape processing or the tool for surface finishing, thereby forming a curved shape along the shape of the portion to be polished. The polishing device described in item 1 of the patent application scope, wherein, A motor that rotates the polishing member from below is provided. The polishing apparatus as described in item 1 of the patent application range includes a machine tool table that rotates integrally with the polishing member in a state where the polishing member is placed on the upper surface. A cutting tool for shape processing, characterized in that the member used in the polishing device described in any one of claims 1 to 6 has the same shape as the above-mentioned portion to be polished, and will be replaced by The polishing surface of the polishing member formed by winding a rod material around a disc is processed into a curved shape along the shape of the portion to be polished. A tool for surface finishing, characterized in that the member used in the polishing device described in any one of claims 1 to 6 has the same shape as the above-mentioned polished part, and will be replaced by the The polishing surface of the polishing member formed by winding a bar material on a disk is trimmed into a curved shape along the shape of the portion to be polished. A method of processing a polishing member, characterized in that a cutting tool for shape processing having the same shape as the shape of the portion to be polished and processing the polishing surface into a curved shape along the shape of the portion to be polished is contacted by The above-mentioned polishing surface of the polishing member having a curved polishing surface along the shape of the portion to be polished of the workpiece to be polished is formed by a replaceable bar material wound around a disc. The method for processing a polishing member as described in item 9 of the patent application range, wherein the curved polishing surface is a curved surface composed of a plurality of curvatures or a curved surface partially including a straight portion. A method for dressing abrasive components, characterized by the following: The surface to be polished portion has the same shape and the polishing surface is trimmed to a curved surface along the shape of the surface to be polished. The surface trimming tool is formed by winding a replaceable rod into a disc and having The polishing surface of the polishing member along the curved polishing surface of the shape of the polished portion of the workpiece. The polishing method for polishing members as described in item 11 of the patent application range, wherein the curved polishing surface is a curved surface composed of a plurality of curvatures or a curved surface partially including a straight portion.

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