CN102574260B - For the apparatus and method of precision edge finishing - Google Patents

For the apparatus and method of precision edge finishing Download PDF

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Publication number
CN102574260B
CN102574260B CN201080042810.3A CN201080042810A CN102574260B CN 102574260 B CN102574260 B CN 102574260B CN 201080042810 A CN201080042810 A CN 201080042810A CN 102574260 B CN102574260 B CN 102574260B
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China
Prior art keywords
finishing
edge
sensor
adjustment
removable
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Expired - Fee Related
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CN201080042810.3A
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Chinese (zh)
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CN102574260A (en
Inventor
J·W·布朗
D·L·德鲁姆
G·N·库德瓦
S·卢
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Corning Inc
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Corning Inc
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
    • B24B9/102Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass for travelling sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B24B49/04Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
    • B24B49/045Specially adapted gauging instruments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/10Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

Providing a kind of finishing treats by the method at the edge of the material of finishing, comprises to the described step treating to be applied by a part for the material of finishing removable sensed layer, and described treating is placed step into a machining area by the edge of the material of finishing.This method also comprises, and utilizes at least one sensor to sense the step of position of described removable sensed layer, and based on sensed position adjustment machine and described to treat by the edge of the material of finishing between the step of relative position.In one embodiment, at least one sensor described is inductive pick-up, and described removable sensed layer is ferromagnetic material.

Description

For the apparatus and method of precision edge finishing
This application claims the benefit of priority of the U.S. Provisional Application No.61/237468 that on August 27th, 2009 submits to.
Technical field
The present invention relates in general to and treats by the method at the edge of the material of finishing for finishing (finish).More specifically, the present invention relates to the method for finishing glass material such as sheet glass (glasssheet), comprise adjust such as emery wheel and so on finishing device relative to treating by the step of the position of the material of finishing.The sheet glass of LCD substrate of edge the present invention is such as applicable to to(for) precise finish is useful.
Background technology
Formed and to treat by the sheet material of such as sheet glass and so on of finishing for various application it is all desirable.After initial formation, treat to be processed (machine) by the material require of finishing by frequent, to obtain, there are the peripheral shape of expection and the final products of edge feature.Need to provide in order to adjustment for processing the technology treated by the machine at the edge of the material of finishing, thus consistent processing is provided and presents the edge with favorable characteristics simultaneously.
Summary of the invention
Proposed below is and the simplification of present disclosure is summed up, to provide, the basis of some exemplary aspect described in this detailed description is understood.
Disclosed herein is many aspects of the present invention.Should be understood that these aspects can be overlapped or not overlapped.Therefore, a part for an aspect can drop in scope on the other hand; Vice versa.
Each aspect is illustrated by some embodiments, and these some embodiments can comprise one or more specific embodiment.Should be understood that described embodiment can be overlapped or not overlapped.Therefore, the part of an embodiment or its specific embodiments can drop on or not drop in the scope of specific embodiments of another embodiment or this another embodiment; Vice versa.
A first aspect of the present invention is that a kind of finishing is treated, by the method at the edge of the material of finishing, to comprise the steps:
A removable sensed layer is applied by a part for the material of finishing to described treating;
Described treating is placed into a machining area by the edge of the material of finishing;
At least one sensor is utilized to sense the position of described removable sensed layer; And
Based on sensed position, adjustment machine and described to treat by the edge of the material of finishing between relative position.
In some embodiment of a first aspect of the present invention, described in treat to be comprised sheet glass by the material of finishing.
In some embodiment of a first aspect of the present invention, described treating is comprised the sheet glass with following thickness by the material of finishing, described thickness is 1000 μm at the most, such as 700 μm, 500 μm at the most, at the most 300 μm, at the most 100 μm at the most, 10 μm even at the most.
In some embodiment of a first aspect of the present invention, described removable sensed layer comprises ferromagnetic material.
In some embodiment of a first aspect of the present invention, described ferromagnetic material comprises ferromagnetic tape.
In some embodiment of a first aspect of the present invention, at least one sensor described comprises multiple sensor, a corresponding interval position of the described removable sensed layer of each sensor sensing in wherein said multiple sensor.
In some embodiment of a first aspect of the present invention, at least one sensor described comprises at least one inductive pick-up.
In some embodiment of a first aspect of the present invention, described method comprise further to guide along direct of travel described in treat by the edge of the material of finishing through the step of described machining area, described sensor senses the position of described removable sensed layer along one and the axis of described direct of travel transverse direction.
In some embodiment of a first aspect of the present invention, a contactless element adjusts described relative position.
In some embodiment of a first aspect of the present invention, described contactless element is being treated described in guiding to be adjusted described relative position by the edge of the material of finishing through while described machining area.
In some embodiment of a first aspect of the present invention, described contactless element comprises at least one fluid bearing thing (fluidbearing), and this fluid bearing thing is treated by the material eject fluid stream of finishing relative to described to adjust described relative position.
In some embodiment of a first aspect of the present invention, at least one fluid bearing thing described comprises a pair relative fluid bearing thing.
In some embodiment of a first aspect of the present invention, controller adjusts described relative position automatically based on a precalculated position of described ferromagnetic material and the position that senses.
A second aspect of the present invention is a kind of method of edge of finishing sheet glass, comprises the steps:
Along the edge application ferromagnetic material of described sheet glass;
The edge of described sheet glass is placed into a machining area;
At least one inductive pick-up is utilized to sense the position of described ferromagnetic material; And
Based on sensed position, the relative position between adjustment machine and the edge of described sheet glass, wherein said relative position utilizes at least one fluid bearing thing to adjust relative to described sheet glass eject fluid stream.
In some embodiment of a second aspect of the present invention, described ferromagnetic material comprises ferromagnetic tape.
In some embodiment of a second aspect of the present invention, described method comprises further and guides the edge of described sheet glass through the step of described machining area along direct of travel, and at least one inductive pick-up described senses the position of described ferromagnetic material along one and the axis of described direct of travel transverse direction.
In some embodiment of a second aspect of the present invention, described fluid bearing thing adjusts described relative position while guiding the edge of described sheet glass to pass described machining area.
A third aspect of the present invention is that a kind of finishing is treated, by the method at the edge of the material of finishing, to comprise the steps:
A removable sensed layer is applied by a part for the material of finishing to described treating;
Described treating is placed into a machining area by the edge of the material of finishing;
At least one sensor is utilized to sense the position of described removable sensed layer;
Based on sensed position, adjustment machine and described to treat by the edge of the material of finishing between relative position;
Treat by the edge of the material of finishing described in processing; And
Remove described sensed layer.
In some embodiment of a third aspect of the present invention, described removable sensed layer comprises ferromagnetic material, and at least one sensor described comprises at least one inductive pick-up.
In some embodiment of a third aspect of the present invention, the step of described processing comprises using to be treated by the edge of the material of finishing described in milling tool processing, and the step of wherein said adjustment comprises the described milling tool of adjustment and treats by the position at the edge of the material of finishing relative to described.
In some embodiment of a third aspect of the present invention, the step of described processing comprises described in polishing to be treated by the edge of the material of finishing, and the step of wherein said adjustment comprise adjustment described milling tool treat by the position at the edge of the material of finishing relative to described.
In a fourth aspect of the present invention, adjustment is treated to be comprised by the method for the machine at the edge of the material of finishing for processing: to the described step treating to be applied by a part for the material of finishing a removable sensed layer, and described treating is placed step into a machining area by the edge of the material of finishing.This method also comprises the step of position utilizing at least one sensor to sense described removable sensed layer, and based on sensed position adjustment machine and described to treat by the edge of the material of finishing between the step of relative position.
In a fifth aspect of the present invention, a kind of method that adjustment is used for the machine at the edge of processed glass sheet comprises: along the step of the edge application ferromagnetic material of described sheet glass, and the step into a machining area is placed at the edge of described sheet glass.Described method comprises further, utilizes at least one inductive pick-up to sense the step of the position of described ferromagnetic material, and based on sensed position, the step of the relative position between adjustment machine and the edge of described sheet glass.Described relative position utilizes at least one fluid bearing thing to adjust relative to described sheet glass eject fluid stream.
In a sixth aspect of the present invention, a kind of processing is treated to be comprised by the method at the edge of the material of finishing: to the described step treating to be applied by a part for the material of finishing a removable sensed layer, described treating is placed step into a machining area by the edge of the material of finishing, and utilizes at least one sensor to sense the step of the position of described removable sensed layer.This method comprises based on sensed position further, adjustment machine and described to treat by the edge of the material of finishing between the step of relative position, treat by the step at the edge of the material of finishing described in processing, and remove the step of described sensed layer.
It is one or more that one or more embodiments of various aspects of the present invention have in following advantages.Owing to employing sensing and set-up procedure, the precise position information treated by the material of finishing can be obtained, and this information is used for adjust the position that this treats by the material of finishing relative to the machine part being applicable to described finishing function---such as emery wheel---, realizes the precision edge finishing to described edge.This method can adapt to the flexing of the light sheet of such as sheet glass and so on, distortion, bending and other distortion and/or mobile, to realize having high uniformity and repeatable dynamic edge finishing.This method is especially favourable for the edge finishing of the sheet glass with following thickness, and described thickness is 1000 μm at the most, is such as less than 700 μm, is less than 500 μm, is less than 300 μm, is less than 100 μm or be even less than about 10 μm.
Other features and advantages of the present invention will be listed in the following detailed description, those skilled in the art obviously will understand a wherein part from described explanation, or by practice as written explanation herein and claim and the invention described in accompanying drawing will be recognized wherein a part of.
Should be understood that above-mentioned general description and detailed description are below only examples of the present invention, and be intended to provide a general view or framework, to understand Essence and characteristics of the present invention as requested.
Accompanying drawing is included to provide a further understanding of the present invention, and is included into this description and forms the part of this description.
Accompanying drawing explanation
When with reference to accompanying drawing read below detailed description time, will be better appreciated by these and other aspects, in the accompanying drawings:
Fig. 1 treats by the material of finishing example machine for processing and is arranged in and treats by the schematic diagram of the material of finishing outside this machine;
Fig. 2 is the sectional view got along the line 2-2 of Fig. 1;
Fig. 3 is similar to Fig. 2, wherein treats to be placed into machining area by the edge of the material of finishing;
Fig. 4 is similar to Fig. 3, and wherein sensor is used to the position sensing removable sensed layer;
Fig. 5 is similar to Fig. 4, wherein adjusts described machine based on sensed position and relative position between treating by the edge of materials of finishing; And
Fig. 6 is the schematic diagram of another example machine, wherein treats to be placed into machining area by the edge of the material of finishing.
Detailed description of the invention
As used herein, term " finishing " intention, to the process of material, includes but not limited to: mechanical treatment and remodeling, such as grinding, chamfering, polishing, formation pattern, cutting, indentation, processing, material removing, material interpolation etc.; Chemical treatment, such as chemical polishing, ion-exchange, etches, is exposed to other chemicals etc.; Optical treatment, such as irradiation, laser ablation etc.; And its combination.Hereafter in the detailed description of each aspect of the present invention and embodiment, focus in processing.After having read the present invention and having benefited from instruction herein, those of ordinary skill in the art will understand that the present invention also can be applicable to other edge finishing process immediately.
Hereafter more fully describe embodiment with reference to the accompanying drawings, accompanying drawing which illustrate the embodiment of example.As possible, identical reference number is used to represent same or analogous part in all of the figs.But described aspect can be presented as many multi-form, should not be construed as the embodiment listed by being limited to herein.
Exemplary method herein relates to frangible the treating by the material of finishing with little thickness.Treat can be had large-scale thickness by the material of finishing.Such as, the thin glass sheet with following thickness " T " can be used, described thickness " T " is in the scope of about 100 μm to about 1000+ μm, all 600 μm according to appointment, about 500 μm, about 400 μm, about 300 μm, about 200 μm, about 100 μm etc., but other smaller or greater thickness also can comprise in other embodiments.
As mentioned above, thin glass sheet fairly bends often, even and if also can tend to flexing, distortion, bending or other distortion when being subject to less mechanical stress in the process of edge finishing, acceleration or deceleration.This is for requiring to be such as a challenge greatly for the repeating of high precision sheet glass, of the sheet glass and so on of LCD substrate precision edge finishing of making peace.The quality at the finishing edge of LCD substrate and other photoelectric devices produces large impact for substrate and the intensity of the final device manufactured.Due to the detection of dynamic of the method for present disclosure and the ability of adjustment sheet glass relative position of---such as emery wheel---relative to finishing device, the edge that the inventive method is particularly advantageous in this thin glass sheet of finishing---especially having the sheet glass of the thickness being less than about 500 μm---.In addition, the inventive method is particularly advantageous in the sheet glass of finishing movement, and the sheet glass of described movement is easier to shape and change in location occur, and especially those have the sheet glass of the movement being less than about 500 μm of thickness.
Treat can be comprised glass by the material of finishing, such as transparent, translucent, colored or other type of glass.In another embodiment, treat can be comprised polymer by the material of finishing, such as comprise the synthetic of glass and polymer.In other embodiments, treat can be comprised crystalline material by the material of finishing, such as quartz components, pottery or glass ceramics.Treat to be can be used for various application by the material of finishing.In one embodiment, treat can be comprised for display assembly by the material of finishing the glass of---such as liquid crystal display or other display equipments---.Such as, as shown, can provide such and treat by the material 101 of finishing, it comprises the sheet glass material be configured for for LCD display application.Treat can be manufactured with various shape by the material of finishing, such as plane, cylinder, circular cone, truncated cone shape or other shapes.
Referring now to Fig. 1, show one for processing the schematic diagram treated by an example machine 103 at the edge 105 of the material 101 of finishing.For clarity sake, only discuss the processing to an edge 105 herein, should be understood that machine 103 can be applicable to processing the various edges treated by the material 101 of finishing.Such as, can process simultaneously treat by the top of the material 101 of finishing and bottom margin.
Various technology can be used process the edge 105 treated by the material 101 of finishing.Such as, processing can comprise (separately or its combination): grinding, indentation, etching, polishing or cut through completely, wherein each all to cause treating by the edge 105 of the material 101 of finishing shaping.Such as, the grinding at edge 105 can be performed for increasing it to because of friction with impact and cause the resistance of fracture, and increases the ability of its anti-vibration in transit.Processing can be carried out along edge in substantially all positions.Or processing can be carried out along edge at interval location place.Moreover processing can be continuous print or pulse.Such as, processing can be included in pulse operation along the interval location place at edge or the application of substantially all positions or non-pulse operation.
In the illustrated embodiment, machine 103 can comprise at least one machining area 107, for receiving and process the edge 105 treated by the material 101 of finishing.As shown, machine 103 can comprise milling tool 109, such as treats by the emery wheel at the edge 105 of the material 101 of finishing for grinding.In the embodiment of shown in Fig. 2, milling tool 109 can have the working edge of the overall circular periphery with spill machining profile 201, thus processing has the edge 105 of convex (not shown).Described spill machining profile 201 can be suitable for edge 105 to be ground to and have the convex that radius is about 1/2 of thickness T, all 250 μm to about 350 μm according to appointment, but other embodiments also can comprise other radiuses.Edge 105 also can be processed into has other profiles various, such as cut sth. askew etc.Additionally or alternatively, machine 103 can comprise polishing tool 111, such as polishing or clean to treat by the polishing wheel at the edge 105 of the material 101 of finishing.In one embodiment, polishing tool 111 can be disposed in the downstream of milling tool 109, thus after grinding action polishing or clean edge 105.
Machine 103 can comprise contactless element 113 further, and this contactless element 113 is suitable for guiding along direct of travel S treating by the edge 105 of the material 101 of finishing through machining area 107.In one embodiment, contactless element 113 can comprise multiple element, such as paired fluid bearing thing 203,205, each fluid bearing thing is provided with one or more nozzle 207,209, and described nozzle injection is suitable for lateral support and treats by the fluid stream of the material 101 of finishing.Therefore, treat directly not contacted contactless element 113 by the material 101 of finishing, but alternatively by fluid stream lateral support.In one embodiment, fluid can comprise water (such as, water support), but also can use various other liquid, gases etc.Paired fluid bearing thing 203,205 can be arranged with relativeness, and a spaced predetermined and fixing distance D, all 2mm are according to appointment to about 2.5mm, but other different distance various are also expect.As shown in Figure 2, fluid bearing thing 203,205 can be positioned at the either side treated by the material 101 of finishing, thus with identical or different degree to treating to be applied power by the one or both sides of the material 101 of finishing.Fluid bearing thing 203,205 also can totally be positioned at above milling tool 109 and/or polishing tool 111, thus does not disturb process operation.
Machine 103 can comprise being suitable for guiding further to be treated by the edge 105 of the material 101 of finishing other structures various through machining area 107.Such as, machine 103 can comprise one or more rollers 115 etc., treats to be moved along direct of travel S by the material 101 of finishing to facilitate.Treat by the movement of the material 101 of finishing it can is that bottom margin (such as, edge 105) transmits.Between processing period, when when processed edge 105 is bottom margins, fluid bearing thing 203,205 can provide the lateral support treated by the side of the material 101 of finishing, a vacuum chuck 117 can be used to transmit along direct of travel S and treat by the material 101 of finishing.In one embodiment, vacuum chuck 117 can be about 75mm wide (height) and extend the length (such as, being up to 3.2 meters) of about sheet material.Vacuum chuck 117 also can be positioned at the one or both sides for the treatment of by the material 101 of finishing.Vacuum chuck 117 can run on following linear track or analog, and described linear track or analog provide the accuracy and rigidity that transmit and treat desired by the material 101 of finishing.For clarity sake, roller 115 and vacuum chuck 117 schematically show in Fig. 1 and 6, and in figs. 2-5 not shown.
As can be appreciated, utilize fixed location device mechanism to carry out edge grinding to glass surface and can produce edging change (groundedgevariation).Due to the little lateral stiffness of glass, glass can in transport and distortion in the process of application grinding force, bending or flexure.Such distortion can cause the change in the contact in edge grinding and between glass and bearing-surface, causes damage of edges or damaged surfaces.In order to provide basically identical expection edge, and/or solving glass bending and the change of other glass position, now description adjustment being used for processing the exemplary method treated by the machine 103 at the edge 105 of the material 101 of finishing.
With reference to Fig. 2-5, an exemplary method can comprise, utilizing at least one sensor 211 to sense treats by the step of the position of the material 101 of finishing, and based on the step of sensed position adjustment at machine 103 and the relative position between treating by the edge 105 of the material 101 of finishing.In one embodiment, single-sensor 211 can be used for the single position sensing removable sensed layer 213, or even can be used to when the multiple positions repeatedly sensing removable sensed layer 213 in time being moved through machine 103 by the material 101 of finishing.In another embodiment, at least one sensor 211 described can comprise multiple sensor 601,603,605,607 (see Fig. 6), a corresponding interval position of the described removable sensed layer 213 of each sensor sensing.Also can expect, multiple removable sensed layer (not shown) can for single or even multiple sensor.Because treat by the material 101 of finishing by the total fluid lateral support that penetrates from noncontact fluid bearing thing in machine 103, therefore sensor 211 should be able to operate in fluid environment.Such as, when use a pair fluid bearing thing 203,205, sensor 211 should be able to operate in water environment, wherein treats to be covered with fluid, such as water by a part for the material 101 of finishing (such as whole).
In one embodiment, at least one sensor 211 described can be inductive pick-up.Inductive pick-up is electric proximity transducer, and it detects metal object, such as ferromagnetic object, and does not contact them.Usually, inductive pick-up comprises inductive loop, and provides electric current to produce magnetic field.The induction coefficient of loop changes according to the material in magnetic field, because compared to other materials, the normally more effective inductor of metal, therefore the existence of metal adds the electric current flowing through loop.This change can detect by sensed circuit (not shown), and described sensing circuit can provide a signal when metal object being detected.Such as, described sensing circuit can be a part for sensor 211, or can away from sensor and be suitable for from sensor 211 receive input.Therefore, because magnetic field is not usually by the impact of fluid (such as water), so inductive pick-up is especially favourable for the application that wherein there is fluid.For the sake of clarity, herein by description wherein at least one sensor 211 are embodiments of inductive pick-up, but be contemplated that, sensor 211 also can comprise various other contact or non-contact sensor, such as physical contact sensor, hydraulic pressure or pneumatic transmitter, laser sensor, sonac, capacitance sensor and/or analog.
In one embodiment, described inductive pick-up 211 can comprise the compact sensor of relative high accuracy, has the resolution ratio of about 2 microns and the measurement category of about 0-10mm.Such as, inductive pick-up 211 can be Keyence inductive displacement pick-up model EX-422V sensor head, it can match with Keyence model EX-V10 controller, and export to be caught sensor by data-acquisition system, described data-acquisition system can provide the output of display displacement.
But some treat by the material 101 of finishing, such as sheet glass, may not comprise can the hardware that detects of sensed sensor.Therefore, described method can comprise removable sensed layer 213 is applied to the step treated by a part for the material 101 of finishing.In one embodiment, removable sensed layer 213 can comprise ferromagnetic material.Such as, ferromagnetic material can comprise ferromagnetic tape, and described ferromagnetic tape is removably applied to by adhesive etc. the material 101 treated by finishing, but also can use other removable materials various.Described removable sensed layer 213 can along treating by the length at the edge 105 of the material 101 of finishing or direction, such as in length or direction, near length or direction, above length or direction or parallel with length or direction, and to be employed.Such as, as shown, removable sensed layer 213 can be applied to along edge 105 and treat by the material 101 of finishing at least partially.
Removable sensed layer 213 can be applied along edge 105 by basic continous, or can be used in interval location place along edge 105.Such as, as shown in fig. 1, removable sensed layer 213 can along treating to be applied by basic continous by a side of the material 101 of finishing, simultaneously with edge 105 parallel interval one distance.When until material 101 relatively dry by finishing, wish carefully to apply ferromagnetic tape basically identical to guarantee the thickness be with, there is little (such as not having) perturbation or ripple.The basically identical of tape thickness is desirable, and accurately to sense the position for the treatment of by the material 101 of finishing, the interference of the ferromagnetic tape between band and glass, such as ripple, bubble etc., can cause measure error.Because treat that by the interval D between the thickness T of the material 101 of finishing and fluid bearing thing 203,205 be all totally controlled and predetermined, therefore removable sensed layer 213 can be applied to and treat by a least possible part of the material 101 of finishing (such as, a face), accurately to sense its position relative to machine 103.In addition, due to the fluid that fluid bearing thing 203,205 penetrates, the removable sensed layer 213 of resist fluids can advantageously be used.
As illustrated further in Fig. 2, exemplary method can comprise the step by treating to be put into by the edge 105 of the material 101 of finishing machining area 107 further.Such as, as shown, treat can be totally positioned at above machining area 107 by the material 101 of finishing, and be placed in wherein by the moving of direction along arrow P.In another embodiment, treat to be placed in machining area 107 by the moving of arrow S direction (or other directions even various) along Fig. 1 by the material 101 of finishing.
Once be placed in machining area 107, treating can be sensed by the position of the material 101 of finishing, to provide basically identical expection edge and/or to solve glass bending and other glass position change etc.As shown in Figure 3, treat may do not aimed at the spill machining profile 201 of milling tool 109 by the edge 105 of the material 101 of finishing.Such as, when milling tool 109 is totally centrally placed between paired fluid bearing thing 203,205, treat can be arranged as relatively closer to one of fluid bearing thing 203,205 by the material 101 of finishing.Treat by the first offset or dish d between a side 301 of the material 101 of finishing and a fluid bearing thing 203 1the the second offset or dish d treated by between the second side 303 of the material 101 of finishing and other fluid bearing things 205 can be different from 2.If do not adjusted, out-of-alignment profile can be grinding in edge 105.
With reference to Fig. 4, this method can comprise the step utilizing at least one sensor 211 to sense the position of removable sensed layer 213 further.Such as, at least one inductive pick-up 211 described magnetic field 401 that can be used for by producing senses the position of ferromagnetic material.The removed sensed layer existed in magnetic field 213 can change the induction coefficient of sensor 211.The sensing circuit (not shown) that described change can be coupled to sensor 211 detects, described sensing circuit can provide the signal of the displacement between display sensor 211 and removable sensed layer 213.Such as, based on the detection-sensitive distance between sensor 211 and removable sensed layer 213, sensor 211 can be used for the distance between sensing fluid bearing thing 203 and adjacent side 301.
Because removable sensed layer 213 will have predetermined thickness, and/or because sensor 211 can be located relative to a fluid bearing thing 203 by different way, therefore the output of sensor 211 can be calibrated, such as with the calibration of suitable predetermined variable, thus the offset or dish be accurately provided between a fluid bearing thing 203 and adjacent side 301 measures d 1.In one embodiment, calibrated section can comprise sensor 211 is exposed to removable sensed layer 213, and use 3 dot systems of a full scale and half scale, within the system, removable sensed layer 213 is placed as and treats to be contacted by the material 101 of finishing.Reading can be recorded and original vortex field data transformations for being provided by sensor 211 is sensor 211 and the distance between treating by the material 101 of finishing.Thus, such as, once the calibration completed a group former (mastersheet) and measurement, system can be programmed for compensation perpendicular to the error on the direction of direct of travel.
(namely the step sensing the position of removable sensed layer 213 can perform according to static mode, treat by the material 101 of finishing static relative to machine 103), or perform (that is, treating to be moved relative to machine 103 by the material 101 of finishing) according to dynamical fashion.The step sensing the position of removable sensed layer 213 even can first perform in a static manner, then performs in a dynamic fashion; Or vice versa.Such as, as shown in Figure 4, the direct of travel guiding that described method can comprise along arrow S (namely see Fig. 1) is treated by the edge 105 of the material 101 of finishing through machining area 107, and sensor 211 can sense the position of moveable sensed layer 213 along the overall horizontal axis (i.e. z axis) of a direct of travel relative to arrow S.
Additionally or alternatively, the step sensing the position of removable sensed layer 213 can perform under dry or wet condition.Such as, as shown in Figure 4, the step of sensing can be performed, and each eject fluid stream 403,405 of fluid bearing thing 203,205 is bearing in treating in machine 103 by the material 101 of finishing simultaneously.Because the magnetic field that inductive pick-up 211 produces is not usually by the impact of fluid stream 403,405, sensing is treated by the step of the position of the material 101 of finishing not by the impact of fluid.
Turn to Fig. 5 now, described method can comprise the step based on sensed position adjustment machine 103 and the relative position between treating by the edge 105 of the material 101 of finishing further.Such as, machine 103 and the relative position between treating by the material 101 of finishing can be adjusted, to aim at treating to be placed as by the edge 105 of the material 101 of finishing with the spill machining profile 201 of milling tool 109.
Usually, (namely total linear spacing D between fluid bearing thing 203,205 can equal the first offset or dish, treating by between a side 301 of the material 101 of finishing and a fluid bearing thing 203), treat by the thickness T of the material 101 of finishing and the second offset or dish (that is, treating by between the second side 303 of the material 101 of finishing and another fluid bearing thing 205) summation.In one embodiment, when milling tool 109 is totally centrally placed between paired fluid bearing thing 203,205, thickness T does not totally change, and can adjust machine 103 and relative position between treating by the edge 105 of the material 101 of finishing, until first through the offset or dish d of adjustment 3substantially equal second through adjustment offset or dish d 4.Thus, only can sense the position of removable sensed layer 213 from side, but various other also can be taked to measure.Still, depend on the geometry of the various parts of machine 103, also can perform adjustment relatively to machine 103 and other specifications various between treating by the material 101 of finishing, such as when milling tool 109 (or other instruments etc.) is not totally centrally placed between fluid bearing thing 203,205.
Described relative adjustment can perform in every way.In one embodiment, contactless element 113 adjustable relative position, is such as guiding in time being passed machining area 107 by the edge 105 of the material 101 of finishing.Such as, at least one in fluid bearing thing 203,205 can relative to treating by the material 101 eject fluid stream 403,405 of finishing to adjust relative position.The supporting force applied by each in fluid stream 403,405 can be adjusted separately in every way, aims at thus by treating to be arranged as by the edge 105 of the material 101 of finishing with milling tool 109 (or other instruments etc.).Fluid stream 403,405 can be adjusted separately in every way, such as by adjustment pressure, mass flow, volume flow, jet type, direction and/or other features.In another embodiment, when fluid bearing thing 203,205 comprises multiple fluid tip 207,209 (see Fig. 4), net flow body stream 403,405 by enabling, stop using or at least one adjustment in multiple fluid tip 207,209 effectively adjusted.
Additionally or alternatively, in fluid bearing thing 203,205 any one or both can be adjusted by physics in every way, such as along at least one displacement axis (namely, X, Y, Z axis line) displacement and/or along at least one rotation angle adjustment (that is, deflect, tilt, roll).Additionally or alternatively, any or all in other machines element (such as milling tool 109, polishing tool 111 etc.) also can be adjusted by physics in every way, such as along at least one displacement axis (namely, X, Y, Z axis line) displacement and/or along at least one rotation angle adjustment (that is, deflect, tilt, roll).
Being contemplated that the step of the position sensing described removable sensed layer 213, and the step of the relative position at adjustment machine 103 after this and edge 105, can both perform with repetitive mode, until realize re-set target.Such as, the step of sensing and adjustment can be performed, until the position sensed of removable sensed layer 213 reaches a predetermined threshold and/or a preset range.In one embodiment, the step of sensing and adjustment can be performed, until the first offset or dish d of sensing between treating by a side 301 of the material 101 of finishing 1reach predetermined threshold distance and/or in a predetermined distance range (see Fig. 3).In another embodiment, sensing and adjustment step can be performed, until first through adjustment offset or dish d 3totally equal second through adjustment offset or dish d 4(see Fig. 5).The single of described removable sensed layer 213 or even multiple position is sensed based on single-sensor 211, or even based on single or even multiple position of the described removable sensed layer 213 of each sensing of multiple sensor 601,603,605,607, the step of described sensing and adjustment can perform with repetitive mode.Additionally or alternatively, utilize single-sensor 211 or multiple sensor 601,603,605,607, the comparison of the position that the step of described sensing and adjustment can sense based at least two performs with repetitive mode.In one embodiment, the step of described sensing and adjustment can perform with repetitive mode, until the position sensed between two sensors 601,603 in multiple sensor relatively reach a predetermined threshold and/or a preset range.
Once realize expection adjustment, processing is treated can be comprised by the method at the edge 105 of the material 101 of finishing, and processing is treated by the edge 105 of the material 101 of finishing, and next from treating the step being removed sensed layer 213 by the material 101 of finishing.After the described removable sensed layer 213 of removing, also can perform various post-processing step to clean the material 101 treated by finishing.Therefore, milling tool 109 processing is such as used to treat by the edge 105 of the material 101 of finishing when the step of processing comprises, or use polishing tool 111 polishing when by the edge 105 of the material 101 of finishing, the step of adjustment can comprise adjustment milling tool 109 and/or polishing tool 111 relative to treating by the position at the edge 105 of the material 101 of finishing.
Also expect, sense the step of the position of described removable sensed layer 213, and after this adjust the step of relative position at machine 103 and edge 105, can be performed at least one times, such as one or many.In one embodiment, the step of adjustment can perform once, such as treats on the test specimen material 101 by finishing at one, or is even treating the production material 101 by finishing performs adjustment.Then the treating by the material 101 of finishing of mass-produced different number can be processed.After the unit and/or predetermined time amount etc. of predetermined number, the step of adjustment can be repeated with check accuracy test.In another embodiment, the step of adjustment can treat that processed treating is performed by each unit of the material 101 of finishing.Such as, treat can be had first displacement in the process of initial cut by the material 101 of finishing, before being then stabilized to new equilbrium position in the process of main grinding and/or last grinding, there is second displacement.
Additionally or alternatively, machine 103 is adjusted and the step of relative position between treating by the edge 105 of the material 101 of finishing can perform in manual, semi-automatic or even full-automatic mode.In one embodiment, can be performed manually by adjusting one or more element of machine 103 based on one or more the sensed position of described removable sensed layer 213 adjustment of machine 103.In another embodiment, as shown in Figure 6, machine 103 adjustment can with single or even continuation mode be performed automatically.Such as, such as based on precalculated position and the position sensed of ferromagnetic material 216, controller 609 can adjust relative position automatically.In another embodiment, in order to allow little change, controller 609 can be configured to not make corrects adjustment, unless the position sensed exceeds predetermined threshold distance or exceeds predetermined distance range.Controller 609 can be configured to the element with arbitrary number---such as milling tool 109, polishing tool 111, fluid bearing thing 203,205, in one or more sensor 211,601,603,605,607 etc. arbitrarily or all---carry out wired or wireless communication.
Controller 609 can be configured to send various types of information to any or all in said elements and/or receive various types of information from any or all said elements, such as sensed position data, adjustment data etc.Such as, controller 609 can receive from one or more sensor 211,601,603,605,607 position data sensed, and can send adjustment data (namely adjusting order) to any or all in milling tool 109, polishing tool 111, fluid bearing thing 203,205 etc.In another embodiment, controller 609 any or all from removable and/or adjustable element can receive reference location data.Controller 609 can perform to the single of machine 103 or continuous print, repetition, semi-automatic or full automatic sensing and adjustment.Controller 609 can even control to treat the movement through machine 103 by the material 101 of finishing, such as via roller 115 and/or vacuum chuck 117 etc.Such as, one or more sensor 211,601,603,605,607 can be used for the ad-hoc location determining to treat when to have been moved to machine 103 by the material 101 of finishing, such as enters machine 103 or leaves machine 103.
Controller 609 can be electronic controller and can comprise processor.It is one or more that controller 609 can comprise in microprocessor, microcontroller, digital signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA), discrete logic circuitry etc.Controller 609 can comprise memory further, and can store the programmed instruction making controller 609 provide function as herein described.Described memory can comprise one or more volatile, non-volatile, magnetic, light or electric medium, such as read-only storage (ROM), random access memory (RAM), electrically erasable ROM (EEPROM), flash memory etc.Controller 609 can comprise one or more analog to digital (A/D) converter further, for the treatment of the various analog inputs to described controller.Controller 609 also can be integrated into control unit of engine (ECU).Signal Regulation and/or circuit isolation can be used for providing purer signal, and reduce the noise in (such as eliminating) signal data.Those skilled in the art should understand, when not departing from required the spirit and scope of the invention, can do various modifications and variations.
Those skilled in the art should understand, when not departing from required the spirit and scope of the invention, can do various modifications and variations.

Claims (20)

1. finishing is treated, by the method at the edge of the material of finishing, to comprise the steps:
A removable sensed layer is applied by a part for the material of finishing to described treating;
Described treating is placed into a machining area by the edge of the material of finishing;
At least one sensor is utilized to sense the position of described removable sensed layer; And
Based on sensed position, adjustment machine and described to treat by the edge of the material of finishing between relative position.
2. method according to claim 1, wherein said treating is comprised sheet glass by the material of finishing.
3. method according to claim 1, wherein said removable sensed layer comprises ferromagnetic material.
4. method according to claim 3, wherein said ferromagnetic material comprises ferromagnetic tape.
5. the method according to aforementioned any one of claim, at least one sensor wherein said comprises multiple sensor, a corresponding interval position of the described removable sensed layer of each sensor sensing of described multiple sensor.
6. the method according to any one of claim 1,2 or 3, at least one sensor wherein said comprises at least one inductive pick-up.
7. the method according to any one of claim 1,2 or 3, comprise further, treat by the edge of the material of finishing through the step of described machining area described in guiding along direct of travel, described sensor senses the position of described removable sensed layer along one and the axis of described direct of travel transverse direction.
8. the method according to any one of claim 1,2 or 3, wherein said relative position is by a contactless element adjustment.
9. method according to claim 8, wherein said contactless element is being treated described in guiding to be adjusted described relative position by the edge of the material of finishing through while described machining area.
10. method according to claim 8, wherein said contactless element comprises at least one fluid bearing thing, and this fluid bearing thing is treated by the material eject fluid stream of finishing relative to described to adjust described relative position.
11. methods according to claim 10, at least one fluid bearing thing wherein said comprises a pair relative fluid bearing thing.
12. methods according to claim 3 or 4, wherein said relative position is adjusted based on a precalculated position of described ferromagnetic material and the position that senses automatically by a controller.
The method at the edge of 13. 1 kinds of finishing sheet glass, comprises the steps:
Along the edge application ferromagnetic material of described sheet glass;
The edge of described sheet glass is placed into a machining area;
At least one inductive pick-up is utilized to sense the position of described ferromagnetic material; And
Based on sensed position, the relative position between adjustment machine and the edge of described sheet glass, wherein said relative position utilizes at least one fluid bearing thing to adjust relative to described sheet glass eject fluid stream.
14. methods according to claim 13, wherein said ferromagnetic material comprises ferromagnetic tape.
15. methods according to claim 13 or 14, comprise further, guide the edge of described sheet glass through the step of described machining area along direct of travel, at least one inductive pick-up described senses the position of described ferromagnetic material along one and the axis of described direct of travel transverse direction.
16. methods according to claim 13 or 14, wherein said fluid bearing thing adjusts described relative position through while described machining area guiding the edge of described sheet glass.
17. 1 kinds of finishing are treated, by the method at the edge of the material of finishing, to comprise the steps:
A removable sensed layer is applied by a part for the material of finishing to described treating;
Described treating is placed into a machining area by the edge of the material of finishing;
At least one sensor is utilized to sense the position of described removable sensed layer;
Based on sensed position, adjustment machine and described to treat by the edge of the material of finishing between relative position;
Treat by the edge of the material of finishing described in processing; And
Remove described sensed layer,
Described removable sensed layer comprises ferromagnetic material, and at least one sensor described comprises at least one inductive pick-up.
18. methods according to claim 17, the step of wherein said processing comprise utilize milling tool process described in treats by the edge of the material of finishing, and the step of wherein said adjustment comprise adjustment described milling tool treat by the position at the edge of the material of finishing relative to described.
19. methods according to claim 17, the step of wherein said processing comprises using to be treated by the edge of the material of finishing described in polishing tool polishing, and the step of wherein said adjustment comprises the described polishing tool of adjustment and treats by the position at the edge of the material of finishing relative to described.
The method of 20. claims 18, the step of wherein said processing---except utilize milling tool process described in treat by except the edge of the material of finishing---also comprise described in polishing and treat by the edge of the material of finishing, and the step of wherein said adjustment comprise adjustment described milling tool treat by the position at the edge of the material of finishing relative to described.
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