CN107356528B - Glass fixing device and glass fixing assembly - Google Patents

Glass fixing device and glass fixing assembly Download PDF

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Publication number
CN107356528B
CN107356528B CN201710738302.2A CN201710738302A CN107356528B CN 107356528 B CN107356528 B CN 107356528B CN 201710738302 A CN201710738302 A CN 201710738302A CN 107356528 B CN107356528 B CN 107356528B
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China
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glass
fixing
glass fixing
adjusting
adjusting table
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CN201710738302.2A
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CN107356528A (en
Inventor
张超
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Lima Optoelectronic Technology Beijing Co ltd
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Lima Optoelectronic Technology Beijing Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106General arrangement of respective parts
    • G01N2021/0112Apparatus in one mechanical, optical or electronic block

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Abstract

The invention provides a glass fixing device and a glass fixing assembly, and belongs to the field of precise detection instruments. The glass fixing device comprises an adjusting table and a fixing block, wherein the adjusting table is used for placing glass to be fixed, the fixing block is arranged on one side surface of the adjusting table, the projection of the fixing block on the adjusting table does not exceed the adjusting table, the fixing block comprises a side wall and a bottom wall, the bottom wall is connected with the adjusting table, the side wall comprises a first part and a second part, the second part forms a step with the adjusting table and is used for propping against the glass, and the first part is coated with a buffer layer. The glass fixing device is simple in structure, convenient and practical, and the buffer layer can play a role in buffering and damping, so that glass damage is avoided. The glass fixing assembly comprises glass fixing platforms and at least 2 glass fixing devices, wherein at least 2 accommodating parts for fixing the adjusting tables of the glass fixing devices are arranged on the glass fixing platforms at intervals. The glass fixing component can well fix glass and can effectively prevent the glass from being damaged in the fixing or tensioning process.

Description

Glass fixing device and glass fixing assembly
Technical Field
The invention relates to the field of precision detection instruments, in particular to a glass fixing device and a glass fixing assembly.
Background
Quality inspection is also called quality inspection, which means that in the production process, various inspection means including sensory inspection, chemical inspection, instrument analysis, physical test and microbiological inspection are used to inspect the quality, specification and grade of the produced product to be inspected, so as to determine whether the product to be inspected meets the specified process. Quality inspection occupies a considerable position in modern industry, especially in precision manufacturing. The current quality inspection method generally detects the size of the product, but does not detect flaws.
In the prior art, the detection platform has poor glass fixing effect, and when glass is fixed, the detection platform is fixed by hard-to-hard connection, so that the glass is easy to damage.
Accordingly, improvements to existing glass fixtures are needed.
Disclosure of Invention
One of the purposes of the invention is to provide a glass fixing component, the glass fixing device has a simple structure, is convenient and practical, and the buffer layer can play a role in buffering and damping to the glass to be fixed in the fixing process, so that the glass to be fixed is prevented from being damaged.
Another object of the present invention is to provide a glass fixing assembly that can perform a better fixing function on glass and effectively prevent the glass from being damaged during fixing and tensioning.
The invention solves the technical problems by adopting the following technical scheme:
the invention provides a glass fixing device which comprises an adjusting table and a fixing block, wherein the adjusting table is used for placing glass to be fixed, the fixing block is arranged on one side surface of the adjusting table, the projection of the fixing block on the adjusting table does not exceed the adjusting table, the fixing block comprises a side wall, a bottom wall and a top wall which are opposite, the bottom wall is connected with the adjusting table, the side wall comprises a first part and a second part, the second part forms a step with the adjusting table and is used for abutting against the glass, and a buffer layer is coated on the first part.
Further, in a preferred embodiment of the present invention, the projection of the first portion on the adjusting table coincides with the first edge, and the first edge is a connecting edge between the adjusting table and the first portion.
Further, in the preferred embodiment of the present invention, the buffer layer is a rubber layer having a thickness of 1.8-2.2 mm.
Further, in a preferred embodiment of the present invention, the glass fixing device further includes a tightening member detachably disposed on the second portion.
Further, in a preferred embodiment of the present invention, the surface of the second portion is a plane, and the tightening member is detachably disposed on the second portion along a direction perpendicular to the surface of the second portion.
Further, in a preferred embodiment of the present invention, the fixing block is provided with a first threaded hole, and the tightening member is provided with a first threaded rod for threaded engagement with the first threaded hole.
The invention also provides a glass fixing assembly, which comprises a glass fixing platform and at least 2 glass fixing devices, wherein the glass fixing platform is provided with at least 2 accommodating parts for fixing adjusting tables of the glass fixing devices at intervals.
Further, in the preferred embodiment of the present invention, the accommodating portion is provided with a connection hole penetrating the accommodating portion along the thickness direction of the glass fixing platform, and a connection rod engaged with the connection hole is provided at a side of the adjusting table away from the fixing block.
Further, in a preferred embodiment of the present invention, the adjustment table is provided with a second adjustment hole for adjusting the distance between the adjustment table and the glass fixing platform.
Further, in a preferred embodiment of the present invention, the glass fixing platform is provided with a pressing member for pressing the glass to be fixed, and the pressing member is detachably connected with the glass fixing platform.
The glass fixing device and the glass fixing assembly in the embodiment of the invention have the beneficial effects that:
the glass fixing device provided by the embodiment of the invention is simple in structure, convenient and practical, and the buffer layer is arranged, so that acting force between the fixing block and the glass fixing platform can be reduced, further, the buffer and shock absorption effects are achieved on the transparent glass in the installation or tensioning process, and damage to the transparent glass due to hard-to-hard connection in the fixing process is reduced.
The glass fixing assembly comprises the glass fixing platform and the glass fixing device, and can play a better fixing role on the transparent glass through steps of the glass fixing platform and the glass fixing device, so that the glass is effectively prevented from being damaged in the fixing or tensioning process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a glass fixing assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of a glass fixing platform in a glass fixing assembly according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure at III in FIG. 1;
FIG. 4 is a schematic view of an exploded structure of a glass fixing device according to an embodiment of the present invention;
FIG. 5 is a schematic view of the assembled structure of FIG. 4;
fig. 6 is a schematic structural diagram of a transparent glass according to an embodiment of the present invention when the transparent glass is fixed to a glass fixing device.
Icon: 10-a glass fixing assembly; 20-a glass fixing platform; 21-a housing; 211-a second connection hole; 23-a pressing member; 30-glass fixing device; 310-adjusting the table; 311-a second connecting rod; 313-a second adjustment aperture; 315-a first surface; 317-a second surface; 320-fixing blocks; 321-a first connection hole; 323-sidewalls; 3231-first part; 3233-a second part; 325-a bottom wall; 327-top wall; 330 steps; 340-a buffer layer; 350-tightening piece; 351-a first connecting rod; 353-a first adjustment aperture; 355-a third surface; 357-fourth surface; 40-light transmitting glass.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In addition, the term "vertical" and the like do not mean that the component is required to be absolutely vertical, but may be slightly inclined. For example, "vertical" merely means that the orientation is more vertical than "horizontal" and does not mean that the structure must be perfectly vertical, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following is a detailed description of the embodiments.
The present embodiment provides a glass fixing assembly 10, referring to fig. 1 and 3, the glass fixing assembly 10 includes a glass fixing platform 20 and at least 2 glass fixing devices 30.
Specifically, the glass fixing platform 20 may be, for example, a rectangular frame structure, and the glass fixing platform 20 is used for placing and mounting glass to be fixed. In this embodiment, the glass to be fixed is transparent glass 40, and the object to be detected is placed on the surface of the transparent glass 40, and the detection light is emitted to the object to be detected through the transparent glass 40, so as to realize the detection of the object to be detected.
Referring to fig. 2 again, the glass fixing platform 20 is provided with at least 2 receiving portions 21 at intervals. The accommodating portions 21 are used for fixing the glass fixing devices 30, and the number of the accommodating portions 21 is greater than or equal to the number of the glass fixing devices 30. When the number of the receiving parts 21 is greater than the number of the glass fixing devices 30, the glass fixing devices 30 may be selectively disposed at different receiving parts 21 according to actual needs.
Alternatively, the number of glass fixtures 30 in the present embodiment is at least 2, but may be 4, 6, and 8. Preferably, the number of the glass fixing devices 30 is even, so as to balance and apply force to the glass to be fixed in the fixing process, thereby improving the fixing effect. The number of glass fixtures 30 may be 4, and correspondingly, the number of the accommodating portions 21 is preferably 4. The 4 receiving parts 21 are respectively disposed at 4 corners of the glass fixing platform 20, that is, the glass fixing device 30 fixes the light-transmitting glass 40 at 4 corners of the light-transmitting glass 40.
It should be noted that, when the number of the accommodating portions 21 is greater than 4, the redundant accommodating portions 21 may be disposed at intervals (not shown) along the side length direction of the glass fixing platform 20, so as to fix the light-transmitting glass 40 at different positions, improve the fixing effect, and avoid the light-transmitting glass 40 from falling off.
Referring to fig. 3 to 6 together, the glass fixing device 30 includes an adjusting table 310 and a fixing block 320 for placing glass to be fixed. The adjustment table 310 is fixed to the housing portion 21, and the adjustment table 310 may have a disk-like cross section, for example. The adjustment stage 310 is preferably a cylindrical stage comprising opposing first and second surfaces 315, 317, specifically, the first surface 315 facing the light transmissive glass 40 and the securing block 320 and adapted to abut or interface with the light transmissive glass 40 and the securing block 320. The second surface 317 faces the glass fixing stage 20 and is fixed to the accommodating portion 21. Optionally, the top of the adjustment table 310 is parallel to the top of the glass holding platform 20.
The fixing block 320 is disposed on one side surface (the first surface 315) of the adjusting table 310, and the projection of the fixing block 320 on the adjusting table 310 does not exceed the adjusting table 310.
The fixed block 320 includes a side wall 323 and opposed bottom and top walls 325, 327, the bottom wall 325 being connected to the first surface 315 of the adjustment stage 310. The side wall 323 includes a first portion 3231 and a second portion 3233, the first portion 3231 facing the accommodating portion 21, and the second portion 3233 facing the light transmitting glass 40. The second portion 3233 forms a step 330 with the adjustment table 310 and is for abutting the light-transmitting glass 40. Alternatively, the first portion 3231 is curved.
In this embodiment, the cross-sectional dimension of the fixing block 320 is smaller than the cross-sectional dimension of the adjusting table 310, and the projection of the first portion 3231 of the fixing block 320 on the first surface 315 of the adjusting table 310 coincides with the first edge. The first side is a connecting side between the adjusting table 310 and the first portion 3231.
The side surface of the light-transmitting glass 40 in the thickness direction thereof abuts against the second portion 3233 of the fixing block 320 for contacting the light-transmitting glass 40, and the bottom surface of the light-transmitting glass 40 abuts against the first surface 315 of the regulating table 310 for contacting the light-transmitting glass 40, so that the light-transmitting glass 40 is restrained by the step 330 formed by the second portion 3233 and the first surface 315.
Further, in order to reduce damage to the light-transmitting glass 40 due to hard-to-hard connection during the fixing process, the first portion 3231 of the fixing block 320 is coated with the buffer layer 340 in the present embodiment. The buffer layer 340 abuts against the accommodating portion 21. Optionally, the cross section of buffer layer 340 is "U" shaped.
By providing the buffer layer 340, the force between the fixing block 320 and the glass fixing platform 20 can be reduced, and thus the light-transmitting glass 40 can be buffered and damped during the installation or tensioning process. In addition, the buffer layer 340 only covers the first portion 3231 of the fixing block 320, so that consumables can be saved, and processing cost and process can be reduced.
Alternatively, the buffer layer 340 may be a rubber layer. The thickness of the rubber layer is preferably 1.8-2.2mm, and the cushioning effect of the light-transmitting glass 40 to be fixed within this thickness range is more excellent than or less than that within this thickness range.
Further, the glass fixing apparatus 30 further includes a tightening member 350, and the tightening member 350 is detachably disposed on the second portion 3233 of the fixing block 320. Preferably, the surface of the second portion 3233 of the fixing block 320 is a plane, and the tightening member 350 is detachably disposed on the second portion 3233 along a direction perpendicular to the surface of the second portion 3233.
The tightening member 350 may be, for example, cylindrical. Specifically, the tightening piece 350 includes a third surface 355 and a fourth surface 357 opposite to each other, the third surface 355 being configured to abut the light-transmitting glass 40, and the fourth surface 357 being configured to connect with the second portion 3233 of the fixing block 320.
Further, the fixing block 320 is provided with a first connection hole 321, and the first connection hole 321 is disposed in a direction from the tightening member 350 to the tightening member 350, i.e., in a direction perpendicular to the surface of the second portion 3233. Correspondingly, the tightening member 350 is provided with a first connection rod 351 for being fitted with the first connection hole 321. Alternatively, the first connecting hole 321 may be, for example, a first threaded hole, and the first connecting rod 351 is correspondingly a first threaded rod that is in threaded engagement with the first threaded hole.
Further, the tightening member 350 is further provided with a first adjusting hole 353, and the first adjusting hole 353 is used for adjusting the distance between the fixing block 320 and the transparent glass 40. The first adjusting holes 353 may be plural, and the plural first adjusting holes 353 are provided at intervals on the circumferential surface of the tightening member 350. Preferably, the spacing distance between two adjacent first adjusting holes 353 is equal.
The first adjusting hole 353 is utilized to drive the tightening member 350 to rotate, so as to adjust the length of the first connecting rod 351 inserted into the first connecting hole 321, i.e. control the distance between the fixing block 320 and the side surface of the transparent glass 40, thereby enabling the fixing block 320 to have the best effect of tensioning the transparent glass 40. And, in this tensioning process, the light-transmitting glass 40 is prevented from being damaged due to the hard connection by the buffering action of the buffer layer 340.
Further, referring to fig. 2 again, the accommodating portion 21 is provided with a second connecting hole 211, and the second connecting hole 211 penetrates the accommodating portion 21 along the thickness direction of the glass fixing platform 20. The side of the adjustment table 310 remote from the fixing block 320, i.e., the second surface 317, is provided with a second connection bar 311 that is engaged with the second connection hole 211. Alternatively, the second connecting hole 211 may be a second threaded hole, and the second connecting rod 311 may be a second threaded rod that mates with the second threaded hole.
The adjustment table 310 is provided with a second adjustment hole 313 for adjusting the distance between the adjustment table 310 and the glass fixing stage 20. The number of the second adjustment holes 313 may be only 1 or may be plural. Preferably, the second adjusting hole 313 is formed on a surface (the first surface 315) of the adjusting stage 310 facing the light-transmitting glass 40. Preferably, the plurality of second adjustment holes 313 are spaced apart, and the spacing distances between two adjacent second adjustment holes 313 are equal.
The second adjusting hole 313 is used to drive the adjusting table 310 to rotate, so as to adjust the length of the second connecting rod 311 inserted into the second connecting hole 211, i.e. control the height of the adjusting table 310, thereby adjusting the horizontal state of the glass.
Further, the glass fixing stage 20 of the present embodiment is also provided with a pressing member 23 for pressing the light-transmitting glass 40. The pressing member 23 is detachably connected to the glass fixing stage 20. A gap is provided between the pressing member 23 and the glass fixing stage 20. By providing the pressing member 23, the light-transmitting glass 40 can be restricted from moving up and down. In particular, for the transportation process, the pressing member 23 can perform a function of pressing and protecting the light-transmitting glass 40, so as to prevent the light-transmitting glass 40 from being separated from the glass fixing assembly 10 or damaged.
On the other hand, the glass fixing device 30 and the glass fixing assembly 10 of the present embodiment operate as follows:
the adjusting table 310 provided with the fixing block 320 and the tightening member 350 is mounted to the accommodating portion 21 by the second connecting rod 311 provided to the adjusting table 310 being engaged with the accommodating portion 21 provided to the glass fixing stage 20.
The light-transmitting glass 40 is placed on the glass fixing platform 20, so that four corners of the light-transmitting glass 40 are respectively abutted against the steps 330 respectively provided by the 4 glass fixing devices 30.
The external rotating member stretches into a second adjusting hole 313 formed in the adjusting table 310 to drive the adjusting table 310 to rotate, so as to adjust the length of the second connecting rod 311 inserted into the second connecting hole 211, namely, control the height of the adjusting table 310, and further adjust the horizontal state of the transparent glass 40.
After the transparent glass 40 is leveled, the external rotating member extends into the first adjusting hole 353 formed in the tightening member 350 to drive the tightening member 350 to rotate, so as to adjust the length of the first connecting rod 351 inserted into the first connecting hole 321, that is, to control the distance between the fixed block 320 and the side surface of the transparent glass 40, so that the fixed block 320 has the best effect of tensioning the transparent glass 40.
Finally, the pressing member 23 is coupled to the glass fixing stage 20 and pressed against the surface of the light-transmitting glass 40 at the side remote from the adjustment stage 310, thereby restricting the light-transmitting glass 40 from moving up and down.
In summary, the glass fixing device 30 provided by the invention has a simple structure, is convenient and practical, and the buffer layer 340 can play a role in buffering and damping the glass to be fixed in the fixing process, so that the glass to be fixed is prevented from being damaged. The glass fixing assembly 10 can play a good role in fixing glass, and can effectively prevent the glass from being damaged in the fixing or tensioning process.
The above embodiments are some, but not all, embodiments of the invention. The detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Claims (4)

1. The glass fixing assembly is characterized by comprising a glass fixing platform and at least 2 glass fixing devices, wherein each glass fixing device comprises a tightening piece, an adjusting table used for placing glass to be fixed and a fixing block, the fixing block is arranged on one side surface of the adjusting table, the projection of the fixing block on the adjusting table does not exceed the adjusting table, each fixing block comprises a side wall and a bottom wall and a top wall which are opposite, the bottom wall is connected with the adjusting table, each side wall comprises a first part and a second part, each second part forms a step with the adjusting table and is used for abutting against the glass, and each first part is coated with a buffer layer; the glass fixing platforms are provided with at least 2 accommodating parts for fixing the adjusting platforms of the glass fixing devices at intervals; the tightening piece is detachably arranged on the second part, and the tightening piece is detachably arranged on the second part along the direction perpendicular to the surface of the second part; the fixed block is provided with a first threaded hole, and the tightening piece is provided with a first threaded rod which is in threaded fit with the first threaded hole;
the accommodating part is provided with a connecting hole penetrating through the accommodating part along the thickness direction of the glass fixing platform, and one side, away from the fixing block, of the adjusting table is provided with a connecting rod matched with the connecting hole; the adjusting table is provided with a second adjusting hole for adjusting the distance between the adjusting table and the glass fixing platform.
2. The glass fixing assembly according to claim 1, wherein the glass fixing platform is provided with a pressing member for pressing the glass to be fixed, and the pressing member is detachably connected with the glass fixing platform.
3. The glass fixing assembly of claim 1, wherein the projection of the first portion onto the adjustment table coincides with a first edge, the first edge being a connecting edge of the adjustment table and the first portion.
4. The glass fixing assembly of claim 1, wherein the buffer layer is a rubber layer having a thickness of 1.8-2.2 mm.
CN201710738302.2A 2017-08-24 2017-08-24 Glass fixing device and glass fixing assembly Active CN107356528B (en)

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Application Number Priority Date Filing Date Title
CN201710738302.2A CN107356528B (en) 2017-08-24 2017-08-24 Glass fixing device and glass fixing assembly

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CN107356528B true CN107356528B (en) 2023-12-01

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110657762A (en) * 2019-09-25 2020-01-07 天津百利泰为科技有限公司 Image acquisition device and method of system for visually detecting flatness of sheet-shaped object

Citations (5)

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Publication number Priority date Publication date Assignee Title
JP2001358202A (en) * 2000-06-14 2001-12-26 Mitsubishi Electric Corp Alignment device
CN102446674A (en) * 2010-09-30 2012-05-09 旭硝子株式会社 Glass substrate for display and sorting method thereof
CN204079778U (en) * 2014-07-31 2015-01-07 美德瑞光电科技(上海)有限公司 A kind of coating clamp for sheet glass
CN104316675A (en) * 2014-11-03 2015-01-28 苏州精创光学仪器有限公司 Sample conveying device of glass appearance defect detecting system
CN207133184U (en) * 2017-08-24 2018-03-23 苏州光照精密仪器有限公司 Glass fixing device and glass fixation kit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001358202A (en) * 2000-06-14 2001-12-26 Mitsubishi Electric Corp Alignment device
CN102446674A (en) * 2010-09-30 2012-05-09 旭硝子株式会社 Glass substrate for display and sorting method thereof
CN204079778U (en) * 2014-07-31 2015-01-07 美德瑞光电科技(上海)有限公司 A kind of coating clamp for sheet glass
CN104316675A (en) * 2014-11-03 2015-01-28 苏州精创光学仪器有限公司 Sample conveying device of glass appearance defect detecting system
CN207133184U (en) * 2017-08-24 2018-03-23 苏州光照精密仪器有限公司 Glass fixing device and glass fixation kit

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