Elastic grindstone dressing method

Technical Field

The present invention relates to elastic trimming method of grinding wheel.

Background Art

Liquid crystal display, plasma display, and the like used in the FPD (Flat   Display   Panel, flat panel display) for glass plate, the glass melt is formed into a plate-shaped, then utilize the cutting device to cut into a predetermined rectangular size of the glass plate. Furthermore, the glass plate with the lip of the Patent document 1, the chamfering of the device disclosed in the chamfering of the grinding wheel for grinding processing and chamfering.

Furthermore, Patent document 2 is recorded in the device is provided with the chamfering of the outer peripheral surface of the V-shaped groove for grinding of metal bonded grinding wheel (grinding wheel) and as the outer peripheral face of the flat surfaces of an elastic grinding wheel (grinding wheel). According to Patent literature 2 of the chamfering device, utilizing the above-mentioned metal-bonded grinding of the V-shaped groove of the plate-shaped body of the grinding edge lip and forming the chamfer surface, and then, utilizing the above-mentioned elastic grinding wheel the outer periphery of the flat shape of the above-mentioned chamfer surface grinding the face. In Patent literature 2 in, the binding agent as the above-mentioned elastic grinding wheel, instantiates the butyl rubber, silicone, polyurethane or natural rubber, as a grinding wheel, instantiates the alumina (Al₂ O₃), silicon carbide (SiC), pumice, or garnet.

Literature of the prior art

Patent literature

Patent literature 1: Japanese opens especially 2002-160147, the

Patent document 2: Japanese opens especially 2001-9689, the

Content of the invention

The problem to be solved by the invention

Patent literature 2 discloses an elastic grinding wheel, against the surface of the plate-like body as the chamfering of the flat surfaces of the processing the outer peripheral surface of wear with the passage of time. Therefore, in a flat shape is formed on the outer peripheral surface of the lip of the plate-like body, transfer of the shape of the annular grooves. The above-mentioned annular groove is, in addition to the lip of the plate-shaped body other than the grinding, the principal plane of the plate-shaped body is also abrasive, therefore in the annular groove reaches a predetermined depth, the need for the outer peripheral surface of the elastic grinding wheel for grinding processing is resumed to the original flat shape, i.e., the need for trimming the outer peripheral surface of the elastic grinding wheel.

As the above-mentioned elastic trimming method of grinding wheel, think of the following method: the elastic grinding wheel in the same time of rotating around the central axis, the turning tool to the partial cutting tool such as the outer peripheral surface of the elastic grinding wheel, the grinding of the outer circumferential surface is flat.

However, in use as a dressing tool of the lathe, the lathe tool and the grinding wheel is the point contact of the outer peripheral surface of the high-temperature part of the heat processing of the outer peripheral surface of the grinding wheel or insusceptible to expansion. Furthermore, the binding agent is a elastomer elastic grinding wheel, therefore, for applying a high pressure to carry out the purposes of the grinding lathe, grinding the outer peripheral surface is difficult to be processed into a flat shape. Therefore, in the use of trimming of the turning tool, the grinding of the outer peripheral surface of the existence of the problem of poor machining precision.

In order to eliminate such problems, thought of the use of disc-shaped or cylindrical metal-bonded grinding wheel as a dressing tool. In other words, in the metal-bonded grinding wheel and the outer elastic grinding wheel week facial suture rotate under the state of contact, the contact part of the on-line reduced processing heat , so as to carry on the outer peripheral surface of the elastic grinding wheel grinding processing.

However, as the use of metal-bonded grinding when the dressing tool, the handle will be metal-bonded grinding but premature blockage, therefore, there is the problem of efficiency reduction of the dressing.

In order to eliminate the problem, can be implemented in the above-mentioned line-contact portion of the cutting water to wash off the handle at the same time elastic grinding wheel for grinding the outer peripheral surface of the wet finishing method. However, wet finishing method there are the following problems: the use of water containing handle after the cutting, the cutting of the water to the water treatment equipment.

This invention is in view of such a situation and to complete, its purpose is to provide the wet finishing method, that is, by adopting the dry-type finishing method which is capable of good precision the outer peripheral surface of an elastic grinding wheel dressing is flat elastic trimming method of grinding wheel.

For means for solving the problem

In order to achieve the above-mentioned purpose, the present invention provides an elastic trimming method of grinding wheel, as for finishing the outer peripheral face of the flat surfaces of an elastic grinding wheel, the trimming method,

Make in the stated is formed on the outer circumferential surface of the ring-shaped groove to the plated elastic grinding wheel of the grinding wheel in their respective mutually rotate around the center axis, and the outer peripheral surface of the grinding wheel to the grinding wheel and the peripheral surface of the roller relative to the pressing, therefore, the grinding wheel using the accumulator, the elastic grinding wheel of the grinding processing to the flat shape of the peripheral surface of the trimming is carried out.

According to the present invention, even in the use in dry finishing method can also be without blockage to electroplating of modifying the elastic grinding wheel of the grinding wheel as a trimming the outer peripheral surface of the abrasive surface. In other words, the flat shape of the ring-shaped groove formed on the outer circumferential surface of the elastic need to be fixed in their respective plating grinding wheel of the grinding wheel and the center of the rotating axis as the center, and the outer peripheral surface of the grinding wheel and the grinding wheel the outer periphery of the pressing face. Therefore, using electro-plating grinding wheel the outer peripheral surface of the wear of the outer peripheral surface of the elastic grinding, crushing, thus the elastic grinding wheel for grinding the outer peripheral surface of the flat-shaped trimming is carried out.

In the electroplating grinding wheel is made of diamond or CBN to (Cubic   Boron   Nitride: vertical tetragonal boron nitride) abrasive grain is held in the base member on the surface of the nickel plating at the same time mechanical fixing the abrasive grain to the base component and the grinding wheel. Plating grinding wheel projected amount of the binding agent than the metal grains of the grinding wheel, the grinding wheel-resin binding agent, more sharp compared with the characteristic of these grinding wheel. Using the characteristic, even in the ring-shaped groove is formed on the outer circumferential surface of the grinding wheel, can also be electroplated abrasive wheel, through a dry finishing method good precision without blockage and the its trimming is of a flat shape. Furthermore, use in electroplating trimming method of grinding wheel, set up and attract only in the finishing position of the trimming in crushed small-sized dust collector to dust collection can be, therefore, does not need to be in the wet finishing method of large-scale water treatment equipment.

Furthermore, in order to achieve the above-mentioned purpose, the present invention provides an elastic trimming method of grinding wheel, elastic grinding wheel used for repairing, the abrasive surface of the grinding wheel by the as to the outer peripheral surface of the lip of the plate-like body, and said elastic grinding wheel to the center axis of the rotation of the polishing process is carried out states the reason department , the trimming method,

In the of the plate-shaped body, the shape of the states the reason department is transferred to the said elastic grinding wheel is formed on the peripheral surface of the accumulator reaches a predetermined depth of the ring-shaped groove, the elastic the grinding wheel and the plating grinding wheel to the center of the respective rotating axis as the center, of the emery wheel and the peripheral surface of the accumulator, the accumulator, and the peripheral surface of the grinding wheel relative to the pressing, therefore, the grinding wheel using the accumulator, the elastic grinding wheel of the grinding processing to the flat shape of the peripheral surface of the trimming is carried out.

For the specialization of the present invention the lip of the plate-like body, the elasticity of the polishing process is carried out a grinding wheel dressing method. In other words, the outer peripheral face of the flat as the abrasive surface of the grinding wheel to the outer peripheral surface of the lip of the plate-like body, and the elastic wheel in which the mandrel to rotate the polishing process is carried out to the above-mentioned edge. As the processing the passage of time, the outer peripheral surface of the flat elastic grinding wheel is worn, in the above-mentioned formed on the outer circumferential surface of the plate-shaped body transfer the shape of the lip of the annular grooves. Moreover, in the above-mentioned ring-shaped groove when the reaches a predetermined depth, through this invention the trimming method for trimming the outer peripheral surface of the elastic grinding wheel.

Of this invention in a way, preferably make the said elastic grinding wheel with the electroplating the rotation direction of the rotating direction of the grinding wheel in the same direction, the elastic grinding wheel of the grinding wheel with the plating of said exterior peripheral surface of the peripheral surface of the contact part of the accumulator, the relative circumferential speed is 6.5-13.0m/seconds.

According to one way of this invention, the elastic the grinding wheel and the electroplating the rotating direction of the grinding wheel is set to the same direction, respectively, the outer peripheral surface of the elastic grinding wheel of the grinding wheel with electroplating the contact of the outer circumferential surface of the circumferential speed of the parts of the set to be 6.5-13.0m/sec, therefore, to the short finishing time to get the required lowest limit the dressing precision.

In other words, because the elastic grinding wheel as the elastomer, therefore, the circular peripheral speed is set to be more than 13.0m/sec at a high speed, because the elastic grinding wheel the centrifugal force generated by the expansion of the outer peripheral surface of the elastomer. Therefore, to the good precision trimming the outer peripheral surface of the elastic grinding wheel. Furthermore, the circular peripheral speed exceeding 13.0m/seconds, as dry conditioning law , therefore also there are the following problems: the heat becomes the high-temperature processing, so as to allow the elastic insusceptible to the outer peripheral surface of the grinding wheel. Therefore, there are the following tendencies: the circular peripheral speed is the low speed, the dressing accuracy is raised. However, the circular peripheral speed in the low speed is set too much, excessive prolonged dressing time, the original elastic grinding wheel (grinding) of the work is adversely affected. Therefore, use of compacting machine used to obtain the desired minimum the dressing precision finishing time for the verification, the result can be confirmed, it is preferable that the peripheral speed of the set to the lower limit value 6.5m/seconds. Therefore, through the circular peripheral speed is set to be 6.5-13.0m/sec, to the short finishing time to get the required lowest limit the dressing precision. Furthermore, an elastic grinding wheel of the grinding wheel and the disc-shaped, cylindrical or cylindrical shape.

Of this invention in a way, preferably, the elastic wheel of the anchoring agent is butyl rubber, natural rubber or resin, the elastic grinding wheel is a diamond abrasive particles, cubic boron nitride (CBN), aluminum oxide (Al₂ O₃), silicon carbide (SiC), pumice, or garnet.

According to one way of this invention, can be instantiated using butyl rubber, natural rubber as the binding agent of the grinding wheel, or using resin as a binding agent as the elastic resin bonded grinding wheel of the grinding wheel.

The effect of this invention

According to the present invention, electroplating use as a grinding wheel dressing tool, therefore, can adopt a dry finishing method to the outer peripheral surface of the elastic grinding wheel dressing good precision in a flat shape.

Description of drawings

Figure 1 is a top view of an elastic of this invention through trimming method of grinding wheel of the chamfering of the trimming device for elastic grinding wheel.

Figure 2 is enlarged a perspective view of the main part of the chamfer angle device.

Figure 3A is map of metal-bonded grinding the grinding grooves and to dispose the lip of the glass sheet.

Figure 3B is note chart of the use of metal-bonded grinding wheel for grinding the lip of the glass sheet.

Figure 3C is an enlarged view of a chamfer surface is formed by grinding the lip of the glass plate.

Figure 4 is a side view of metal-bonded grinding wheel.

Figure 5 is a perspective view of a whole of the new state or after finishing elastic grinding wheel.

Figure 6A is amplifying a side view of the grinding wheel to the said elastic grinding wheel against the outer peripheral surface of the main part of the state of on.

Figure 6B is amplifying a side view of the grinding wheel using electro-plating said elastic grinding wheel to the state of the outer peripheral surface of the main part of the repair.

Figure 6C is amplifying a side view of the grinding wheel using electro-plating said elastic grinding wheel after trimming of the outer peripheral surface of the main part of the the elastic grinding wheel.

Mode of execution

The following, according to the Figure the elastic grinding wheel of the present invention a preferred embodiment of the method for trimming a detailed description.

Figure 1 is a top view of the present invention through the elasticity of the trimming trimming method of grinding wheel of the grinding wheel 26, 28 of the chamfer device 10. The chamfering device 10 is to a thickness of 0.7 mm below the glass plate for a liquid crystal display (platelike body) 12 lip and 12A-12D use of metal-bonded grinding wheel 18, 20 for grinding and chamfering processing, and the chamfer chamfer processing after the elastic grinding wheel 26, 28 is subjected to a mirror finish grinding of the device.

Furthermore, as can be applied to the chamfer device 10 of the plate-like body, is not limited to a glass plate for liquid crystal display 12. For example, the glass plate used for plasma display, LED display, other glass plate used for glass plate used for FPD, can also be used for the solar battery, lighting, building materials, such as for the glass plate of the mirror. Furthermore, even if the plate is metal or resin, can be applied. The thickness of the plate-like body is also not limited to, 0.7 mm the following, may also be more than 0.7 mm thickness.

Chamfering device 10 by the absorb and keep the rectangular glass plate 12 of the platform 14, the platform 14 in the direction along the arrow A-B the reciprocating movement of the mobile device 16, to the glass plate 12 the lip of the 12A-12D the grinding of the lip and forming the chamfer disc-shaped or a cylindrical shape of a pair of metal bonded grinding wheel 18, 20, the metal-bonded grinding wheel 18, 20 of the high-speed rotation of the electric motor 22, 24, the above-mentioned chamfer surface is subjected to a mirror finish grinding of the disc-shaped or cylindrical elastic grinding wheel 26, 28, the elastic grinding wheel 26, 28 of the high-speed rotation of the electric motor 30, 32, to the use of metal-bonded grinding wheel 18, 20 of the nozzle the injection of the cooling liquid of a process portion 34, 36, to the elastic grinding wheel and 26, 28 of the nozzle the injection of the cooling liquid of a process portion 38, 40 and so on.

Elastic grinding wheel 26, 28 is an elastic binding butyl rubber, natural rubber or silicone resin, polyurethane resin, phenolic resin, resin such as a polyimide resin or an epoxy resin, in addition, an elastic grinding wheel 26, 28 is a diamond abrasive particles, cubic boron nitride (CBN), aluminum oxide (Al₂ O₃), silicon carbide (SiC), pumice, or garnet. On an elastic grinding wheel 26, 28 of the trimming method, to explain in the following text.

Chamfering device 10 has opposed in the 2 main surface of the glass plate 12 from the lip of the platform 14 is exposed on the upper surface of the under the state, the glass plate 12 on a principal plane absorb and keep in platform 14 of the upper surface of the surface, using the mobile device 16 makes the platform 14 move in the direction along the arrow A. In its movement, with the glass plate 12 opposite the moving direction of the rotation direction of the ([...]) of metal bonded grinding wheel 18, 20 to the glass plate 12 of the lip of the opposed 12A, 12B chamfer surface is formed by grinding. Furthermore, with the glass plate 12 opposite the direction of movement of the the elasticity of the rotation direction of the grinding wheel 26, 28 of the above-mentioned chamfer surface. Therefore, the glass plate 12 the lip of the 12A, 12B after performing chamfering, is subjected to a mirror finish.

Furthermore, when the processing of chamfering, from the nozzle 34 to the metal-bonded grinding wheel 18 and the glass plate 12 the lip of the 12A the contact of the spray coolant, and from the nozzle 36 to the metal-bonded grinding wheel 20 and the glass plate 12 the lip of the 12B contact processing portion and spraying the cooling liquid. Furthermore, in the mirror at the time of processing, from the nozzle 38 to the elastic grinding wheel 26 and the glass plate 12 the lip of the 12A the contact of the spray coolant, and from the nozzle 40 to the elastic grinding wheel 28 and the glass plate 12 the lip of the 12B contact processing portion and spraying the cooling liquid.

Therefore, the above-mentioned processing is the above-mentioned cooling liquid, therefore, the reduction of the glass plate 12 the lip of the 12A, 12B the burn, the generation of the gap. Furthermore, the glass plate is also reduced 12 of the above-mentioned 2 a with the edge of their respective main 12A, 12B the border surface of the end face of the of debris generated. Furthermore, as a coolant, can be instantiated pure water, grinding oil and mixtures of them.

Chamfering device 10 in, in order to to the glass plate 12 of the one pair of opposed lips 12A, 12B processing and chamfering at the same time the mirror processing, the metal bonded grinding wheel 18 and an elastic grinding wheel 26 and lip 12A contraposition configuration, and the metal-bonded grinding wheel 20, elastic grinding wheel 28 and lip 12B contraposition configuration. Elastic grinding wheel 26, 28 with respect to the metal-bonded grinding wheel 18, 20 is disposed in the glass plate 12 to the downstream side of the conveying direction.

Figure 1 in, metal-bonded grinding wheel 18 by the electric motor 22 is rotated along a clockwise direction, metal-bonded grinding wheel 20 by motor 24 along the counterclockwise rotation. Furthermore, elastic grinding wheel 26 by the electric motor 30 is rotated along a clockwise direction, an elastic grinding wheel 28 by motor 32 along the counterclockwise rotation. These grinding wheel 18, 20, 26, 28 is preferably set as the rotational speed of the 3000rpm the above.

Furthermore, fig. 1 in the shown in the glass plate 12 along the arrow A using fixed at the same time moved in the direction of metal bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 to the lip 12A, 12B the chamfering of the processing device 10, but is not limited to this. For example, can be the glass plate 12 is fixed and the metal-bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 along the glass plate 12 the lip of the 12A, 12B mobile chamfer device. Furthermore, the metal binding agent can also be the grinding wheel 18, 20 and an elastic grinding wheel 26, 28 and the glass plate 12 along the glass plate 12 the lip of the 12A, 12B close to each other in the direction of the movement of the chamfering device. Furthermore, the glass plate 12 of the lip of the other opposed 12C, 12D can utilize the configuration in fig. 1 of metal bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 of the not shown of the rear section of the grinding wheel and a metal anchoring agent for processing the elastic grinding wheel. Or, can utilize the platform 14 so that the glass plate 12 and move in the direction along the B is returned to the original position, then, the platform 14 of the glass plate 12 a glass plate 12 in the direction perpendicular to the principal plane of the axis of the 90 degree rotation, then, the use of platform 14 so that the glass plate 12 at the same time moved in the direction along the A, using matching glass plate 12 the lip of the 12A, 12B change the length of the spacing of metal bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 to the lip 12C, 12D to be processed.

Figure 2 is a perspective view of enlarged chamfer device 10 of the main part, has shown the metal-bonded grinding wheel 18 and an elastic grinding wheel 26.

As shown in Figure 2, metal-bonded grinding wheel 18 and an elastic grinding wheel 26 and the glass plate 12 end 12E contraposition configuration. In this, end face 12E is in relation to the glass plate 12 of the principal plane 12F the surface of the orthogonal direction, is processing the front surface. Comprising the end face 12E and principal plane 12F side interface, and end surface 12E called lip part of 12A-12D, the lips 12A-12D use of metal-bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 is processed. Furthermore, such as in Patent document 1, as recorded, can make the metal-bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 relative to the rotary shaft erected on the glass plate 12 of the principal plane 12F is tilted at a predetermined angle with the vertical line of the.

Metal-bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 is rotationally driven at the same time, and through using chart 1 of the mobile device 16 of the glass plate 12 of the mobile, the glass plate 12 of the lip of the opposed 12A, 12B use of metal-bonded grinding wheel 18, 20 and an elastic grinding wheel 26, 28 is processed at the same time.

Figure 3A and Figure 3B is enlarged cross-sectional diagram of metal-bonded grinding wheel 18, 20 of the outer peripheral surface of the main part. Furthermore, metal-bonded grinding wheel 18, 20 a is the same, therefore, in the pair of metal-bonded grinding wheel 18 to explain, and omit the metal-bonded grinding wheel 20 of the note.

The metal-bonded grinding wheel 18 on the outer peripheral surface of the, as the grinding grooves, a plurality of annular grooves 42 along the horizontal direction (relative to the Figure 4 in order to single-dot chain line in the direction orthogonal to the axis of rotation) is formed. As shown in Figure 4 of metal bonded grinding wheel 18 is shown a side view of, the annular groove 42 in the direction of up and down a plurality of provided an in parallel.

Furthermore, annular groove 42 of metal bonded grinding wheel 18 in the thickness direction is not limited to the plan shape of the cross section of the 3A and 3B the U-shape shown, can also be a V-shaped, concave. Furthermore, annular groove 42 can be a number of 1 bar, but in order to save metal-bonded grinding wheel 18 of the replacement operation, preferably as shown in Figure 4 the metal-bonded grinding wheel 18 in the direction of thickness of the plurality of set up at a predetermined interval. The metal-bonded grinding wheel 18 is provided with a plurality of annular grooves 42, thus, in use, the annular groove 42 to achieve the service life, if the not shown control device will be metal-bonded grinding wheel 18 to annular groove 42 in the upper and lower direction of the distance between the (metal-bonded grinding wheel 18 in the thickness direction) for lifting, can the metal-bonded grinding wheel 18 of the replacement operation of the new annular groove 42 to the glass plate 12 the lip of the 12A for grinding. Furthermore, annular groove 42 can be of the shape having a single radius of curvature of the shape of, the end surface can also be is 12E part of grinding, and as shown in Figure 3C shown in the end face of the grinding after the 12E [...] and principal plane 12F the boundary face 12G of grinding the radius of curvature of the part has a different shape.

As shown in Figure 3A shown, in the horizontal direction, metal-bonded grinding wheel 18 of the annular groove 42 and the glass plate 12 the lip of the 12A opposed, starting from this state of metal grinding wheel 18 to the lip 12A transferred along the horizontal direction. Furthermore, the metal-bonded grinding wheel 18 of the annular groove 42 to the lip against 12A time, as shown in Figure 3B shown, metal-bonded grinding wheel 18 to the amount of the grinding amount corresponding to the lips 12A transfer. Therefore, as shown in Figure 3C shown, lip 12A is annular groove 42 the grinding, the lips 12A formed a chamfer surface. Furthermore, as shown in Figure 3A shown in the dashed-line B, in order to make the end 12E glass plate 12 against the center portion of the thickness direction of the annular groove 42 of the most deep the metal-bonded grinding wheel 18 to the lip 12A transfer.

Furthermore, the elastic grinding wheel 26, 28 for description. Furthermore, elastic grinding wheel 26 and the elastic grinding wheel 28 for the same object, therefore, in the pair of elastic grinding wheel 26 to explain, and elastic grinding wheel 28 of the note. Furthermore, the elastic and the grinding wheel 28 of the associated note.

Figure 5 is a perspective view of a whole new state or after finishing said elastic grinding wheel 26. Elastic grinding wheel 26 is configured as disc-shaped, cylindrical shape or the cylinder shape and a flat shape of the outer peripheral face of the grinding surfaces of the grinding wheel.

Elastic grinding wheel 26 is to utilize the thermosetting resin of the binding agent obtained by maintaining abrasive grains of the grinding wheel. As the above-mentioned binding agent, can be enumerated butyl rubber, natural rubber or silicone resin, polyurethane resin, phenolic resin, resin such as a polyimide resin or an epoxy resin. Furthermore, as the abrasive grain, can be enumerated diamond, cubic boron nitride (CBN), aluminum oxide (Al₂ O₃), silicon carbide (SiC), pumice, or garnet, and the like. Furthermore, with regard to elastic grinding wheel 26 the particle size of the abrasive particles, for example, in the case of diamond abrasive grain, preferably 200-1500, (JIS   R6001: 1998).

Elastic grinding wheel 26 in, the connected to the glass plate 12 the lip of the 12A the end face of the the 12E [...] (reference Figure 3C) with the flat outer circumferential surface of the abrasion of the processing with the passage of time. Therefore, as shown in Figure 2 the elastic grinding wheel 26 as shown, the outer peripheral surface of the flat 43 transfer is formed on a glass plate 12 the lip of the 12A the concavities (concave) shape of the annular groove 44. Annular groove 44 is, in addition to the glass plate 12 the lip of the 12A other than by grinding, glass plate 12 of the principal plane 12F is also abrasive, therefore, the annular groove 44 when the reaches a predetermined depth, an elastic grinding wheel 26 the peripheral surface 43 is grinding processing is resumed to the original flat shape. In other words, an elastic grinding wheel 26 the peripheral surface 43 is trimming. In this specification, refers to a flat shape, as shown in Figure 6C shown, elastic grinding wheel from the 26 center shaft 26A orthogonal direction to observe elastic grinding wheel 26 the form of the surface of the is flat.

Furthermore, the elastic grinding wheel 26 by the trimming method.

Elastic grinding wheel 26 the outer peripheral surface 43 of the trimming method, as the dressing tool, as shown in Figure to use 6A, Figure 6B shown in the form of a disc-shaped, cylindrical or cylindrical plating grinding wheel 46. Figure 6A is amplifying a side view of the said grinding wheel 46 against the outer peripheral surface of the flat to the elastic grinding wheel 26 the outer peripheral surface 43 of the main part of the state of the amplifying a side view, Figure 6B that utilize the electric plating grinding wheel 46 pair of elastic grinding wheel 26 the outer peripheral surface 43 of the main part of the state of the amplifying a side view, Figure 6C that utilize the electric plating grinding wheel 46 pair of elastic grinding wheel 26 the outer peripheral surface 43 and trimming after to restore the elasticity of the flat shape of the grinding wheel 26 of the main portion.

In other words, embodiment of a flexible abrasive wheel 26 in the trimming method, even in the dry-type finishing method for use in trimming without blockage to the plating grinding wheel 46 pair of elastic grinding wheel 26 the outer peripheral surface 43 for trimming.

Specifically, as shown in Figure 6A illustrated, the form annular grooves 44 need to be fixed by elastic grinding wheel 26 and electroplating grinding wheel 46 to the central axis of their respective 26A, 46A as the center of mutual rotation, and as shown in Figure 6B the plated grinding wheel shown in 46 the outer peripheral surface of the flat shape of the elastic grinding wheel 26 the outer peripheral surface 43 relatively press. Therefore, using electro-plating grinding wheel 46 the elastic grinding wheel 26 the outer peripheral surface 43 wear, crushing, thus Figure 6C the outer peripheral surface as shown in 43 grinding trimming is carried out to a flat shape.

Furthermore, it is of course, the elastic grinding wheel 26 and electroplating grinding wheel 46 of the central shaft 26A, 46A set to parallel.

Plating grinding wheel 46 is finger on a disc-shaped, cylindrical shape or the cylinder shape of the outer periphery of the metal substrate, the diamond or CBN (Cubic   Nitride   Boron: cubic boron nitride) abrasive grain to maintain in the electroplating grinding wheel 46 of the base member (not shown) on the surface of the nickel-plated at the same time the mechanical fixing the abrasive grain to the base component and the grinding wheel. Plating grinding wheel 46 projected amount of the binding agent than the metal grains of the grinding wheel, the grinding wheel-resin binding agent, more sharp compared with the characteristic of these grinding wheel.

Utilizing the above-mentioned electroplating grinding wheel 46 of the characteristic, even in the outer peripheral surface 43 is formed with a annular groove 44 elastic grinding wheel 26, through a dry finishing method can be also blocked not good precision the its trimming is of a flat shape.

Furthermore, using electro-plating grinding wheel 46 in the method for trimming, set up and attract only in the finishing position of the trimming in crushed small-sized dust collector to dust collection can be, therefore, does not need to be in the wet finishing method of large-scale water treatment equipment.

Furthermore, preferably the elastic grinding wheel 26 the outer peripheral surface 43 and electroplating grinding wheel 46 contact of the outer circumferential surface of the circumferential speed of the parts of the set to be 6.5-13.0m/seconds.

According to the method of the embodiment, as shown in Figure 6A, Figure 6B illustrated, the elastic grinding wheel 26 and electroplating grinding wheel 46 in the rotation direction are respectively set to the same direction, the elastic grinding wheel 26 the outer peripheral surface 43 and electroplating grinding wheel 46 contact of the outer circumferential surface of the circumferential speed of the parts of the set to be 6.5-13.0m/sec, therefore, to the short finishing time to get the required lowest limit the dressing precision.

In other words, because the elastic grinding wheel 26 of elastomer, therefore, the circumferential speed is set to be more than 13.0m/sec at a high speed, because the elastic grinding wheel 26 and a centrifugal force generated in the outer peripheral surface of the elastomer 43 expansion. In other words, an elastic grinding wheel 26 as a result of the centrifugal force and elastic deformation takes place. Therefore, the good precision to the elastic grinding wheel 26 the outer peripheral surface 43 finishing to smooth (flat). Furthermore, more than the circumferential speed of the 13.0m/seconds, dry conditioning law due to, the following problem will also produce: heat becomes the high-temperature processing, so as to allow the elastic grinding wheel 26 the outer peripheral surface 43 of the contactors occurs. Therefore, there are the following tendencies: the above-mentioned circumferential speed to low speed is, the more improved the finishing precision.

However, in the above-mentioned circumferential speed of the low speed is set too much, excessive prolonged dressing time, to the elastic grinding wheel 26 the original working (grinding process) is adversely affected. Therefore, use of compacting machine used to obtain the desired minimum the dressing precision finishing time for the verification, the result can be recognized, the above-mentioned circumferential speed is preferably set to the lower limit of 6.5m/seconds. Therefore, through the above-mentioned circumferential speed is set to be 6.5-13.0m/sec, to the short finishing time to get the required lowest limit the dressing precision.

Detailed and the reference the particular embodiment described the present invention, but a person skilled in the art it is evident that, without deviating from the scope and spirit of the present invention can be carried out under the condition of various modification and alteration.

This application is based on Japan Patent application 10 October 2012 2012-224921, its content in the as a reference into this specification.

Grade description

10 the chamfer device [...] , 12 the glass plate [...] , 12A-12D the lip of the glass sheet [...] , 12E, the 12E [...] ... the end face of the glass plate, the 12F [...] principal surface of the glass plate, the 12G [...] with the principal plane of the end face of the glass plate side interface, 14 the platform [...] , 16 the mobile device [...] , 18, 20 the metal-bonded grinding [...] , 22, 24 the motor [...] , 26, 28 the elastic grinding wheel [...] , 30, 32 the motor [...] , 34, 36, 38, 40 the nozzle [...] , 42 the annular groove [...] , 43 the outer peripheral surface [...] , 44 the annular groove [...] , 46 the electroplating [...] grinding wheel