CN111065903A - Inspection apparatus - Google Patents
Inspection apparatus Download PDFInfo
- Publication number
- CN111065903A CN111065903A CN201880057119.9A CN201880057119A CN111065903A CN 111065903 A CN111065903 A CN 111065903A CN 201880057119 A CN201880057119 A CN 201880057119A CN 111065903 A CN111065903 A CN 111065903A
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- Prior art keywords
- holding
- inspection
- liquid crystal
- mounting
- crystal panel
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- 238000007689 inspection Methods 0.000 title claims abstract description 142
- 230000007246 mechanism Effects 0.000 claims abstract description 143
- 230000003028 elevating effect Effects 0.000 claims description 25
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 description 104
- 239000000523 sample Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Analytical Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The inspection device comprises: a holding section (6) having a holding mechanism (34) on one end side and a holding mechanism (35) on the other end side; and a rotation mechanism (7) which rotates the holding part (6) with the central position of the holding part (6) as the rotation center in the vertical direction as the rotation axis direction. The rotating mechanism (7) rotates the holding unit (6) to a first replacement position and a second replacement position, wherein in the first replacement position, the holding mechanism (34) is arranged above a first mounting part (3) on which the inspection object (2) is mounted during lighting inspection, the holding mechanism (35) is arranged above a second mounting part (4) on which the inspection object (2) before and after lighting inspection is mounted, in the second replacement position, the holding unit (6) is rotated 180 DEG from the first replacement position, so that the holding mechanism (34) is arranged above the second mounting part (4), and the holding mechanism (35) is arranged above the first mounting part (3). This simplifies the structure and shortens the time required to replace the test object.
Description
Technical Field
The present invention relates to an inspection apparatus for inspecting an object to be inspected by lighting.
Background
Conventionally, an inspection device for inspecting lighting of a liquid crystal panel is known (for example, see patent document 1). The inspection apparatus described in patent document 1 is incorporated in the middle of the manufacturing process of the liquid crystal panel. The inspection apparatus includes: a detection unit for performing lighting inspection of the liquid crystal panel; a carry-in side conveyor for conveying the liquid crystal panel before inspection to the detection part; a carrying-in mechanism for carrying in the liquid crystal panel carried by the carrying-in side conveyor into the detection part; a carrying-out mechanism for carrying out the inspected liquid crystal panel from the detecting part; and a carrying-out side conveyor which conveys the liquid crystal panel carried out by the carrying-out mechanism.
In the inspection device described in patent document 1, the detection unit includes a stage on which the liquid crystal panel is mounted, a backlight that irradiates light to the liquid crystal panel from the back surface of the liquid crystal panel, a screen that projects an image of the surface of the liquid crystal panel, and an optical system disposed between the stage and the screen, and these components are disposed in the case. The case is provided with a slide door that opens and closes when the liquid crystal panel is carried in by the carrying-in mechanism and a slide door that opens and closes when the liquid crystal panel is carried out by the carrying-out mechanism.
In the inspection device described in patent document 1, when the slide door is closed, the inside of the housing becomes a sealed space, and becomes a dark room in which light from the outside is blocked. The lighting inspection of the liquid crystal panel is performed in the case with the shutter closed. That is, the lighting inspection of the liquid crystal panel is performed inside the case which becomes a darkroom. When the lighting inspection of the liquid crystal panel is finished, the sliding door is opened, and after the inspected liquid crystal panel is carried out of the workbench through the carrying-out mechanism, the liquid crystal panel before the inspection is carried into the workbench through the carrying-in mechanism. When the liquid crystal panel before inspection is carried into the table, the slide door is closed, and the next liquid crystal panel is lighted and inspected in the interior of the housing serving as the darkroom.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2007-107973
Disclosure of Invention
Technical problem to be solved by the invention
In the inspection apparatus described in patent document 1, a carrying-in mechanism for carrying a liquid crystal panel before inspection into a table and a carrying-out mechanism for carrying a liquid crystal panel after inspection out of the table are provided separately. Therefore, the structure of the inspection apparatus described in patent document 1 becomes complicated. In the inspection apparatus described in patent document 1, in order to improve the inspection efficiency of the liquid crystal panel, it is preferable that the time for replacing the liquid crystal panel mounted on the table is short. However, in this inspection apparatus, when the lighting inspection of the liquid crystal panel is completed, the liquid crystal panel before the inspection is carried into the table by the carrying-in mechanism after the liquid crystal panel after the inspection is carried out of the table by the carrying-out mechanism, and therefore, the replacement time of the liquid crystal panel becomes long.
Therefore, an object of the present invention is to provide an inspection apparatus for performing lighting inspection on an inspection object, which can simplify the structure and shorten the time for replacing the inspection object.
Technical solution for solving technical problem
In order to solve the above-described problems, an inspection apparatus according to the present invention is an inspection apparatus for inspecting an object to be inspected by lighting, the inspection apparatus including: a holding unit having a first holding mechanism for holding an inspection object on one end side and a second holding mechanism for holding the inspection object on the other end side; a rotation mechanism that rotates the holding portion with a central position of the holding portion as a rotation center in an axial direction of rotation in a vertical direction; a first placing part for placing the object to be inspected during lighting inspection; a second mounting part for mounting the inspection object before and after the lighting inspection; a housing that is formed with an opening through which a part of the holding portion passes when the holding portion rotates, and that houses a first placement portion; and a sliding door that moves between a closed position closing the opening portion and an open position opening the opening portion, the second placement portion being disposed outside the housing, the rotation mechanism rotating the holding portion toward a first replacement position at which the first holding mechanism is disposed above the first placement portion and the second holding mechanism is disposed above the second placement portion, a second replacement position at which the holding portion is rotated 180 ° from the first replacement position, the first holding mechanism being disposed above the second placement portion, and a standby position at which the holding portion is disposed at a position at which the sliding door can move toward the closed position.
The inspection apparatus of the present invention includes: a holding section having a first holding mechanism on one end side and a second holding mechanism on the other end side; and a rotation mechanism that rotates the holding portion with a central position of the holding portion as a rotation center in an axial direction of rotation in the vertical direction. In the present invention, the rotation mechanism rotates the holding unit toward a first replacement position where the first holding mechanism is disposed above a first mounting portion on which the inspection object is mounted during the lighting inspection, and a second replacement position where the holding unit is rotated 180 ° from the first replacement position so that the first holding mechanism is disposed above the second mounting portion and the second holding mechanism is disposed above the first mounting portion.
Therefore, according to the present invention, the holding unit for holding the inspection object by the first holding mechanism and the second holding mechanism is rotated from the first replacement position to the second replacement position, or from the second replacement position to the first replacement position, whereby the inspection object placed on the first placement unit can be replaced. That is, in the present invention, the replacement of the inspection object can be performed using one holding portion and one rotating mechanism. Therefore, in the present invention, the structure of the inspection apparatus can be simplified as compared with a case where a mechanism for carrying in the inspection object to the first mounting part and a mechanism for carrying out the inspection object from the first mounting part are separately provided.
Further, in the present invention, if the holding unit is rotated from the first replacement position to the second replacement position or the holding unit is rotated from the second replacement position to the first replacement position, the inspection object placed on the first placement unit can be replaced, and therefore, the time for replacing the inspection object can be shortened. Further, in the present invention, since the holding unit is rotated toward the standby position where the holding unit is disposed at a position where the slide door can move to the closed position, the opening can be closed by the slide door at the time of lighting inspection, and the inside of the case becomes a dark room.
According to the present invention, in the inspection apparatus, for example, the lighting inspection of the inspection object placed on the first placing portion is performed in a state where the holding portion is placed at the standby position and the shutter is placed at the closed position, and when the lighting inspection of the inspection object is completed, the shutter at the closed position is moved to the open position, and after the holding portion at the standby position is moved to one of the first replacement position and the second replacement position, the holding portion is moved to the other of the first replacement position and the second replacement position, and then moved to the standby position.
According to the present invention, the standby position is preferably a position in which the holding portion is rotated by 90 ° from the first replacement position and the second replacement position. With this configuration, when lighting inspection of the inspection object is performed, the entire holding unit can be reliably retracted from between the inspection object placed on the first placing unit and the inspection camera disposed above the inspection object. Therefore, the entire image of the inspection object can be reliably projected onto the inspection camera. Further, if the structure is such that the distance between the rotation center of the holding portion and the opening is short, the holding portion is prevented from contacting the slide door when the slide door is closed, and the opening can be closed by the slide door. Therefore, the inspection apparatus can be miniaturized.
According to the present invention, for example, the holding portion at the standby position is disposed inside the housing. Further, according to the present invention, it is preferable that the inspection apparatus includes an elevating mechanism for elevating the holding portion. With such a configuration, the configuration of the inspection apparatus can be simplified as compared with a case where an elevating mechanism for elevating the first mounting portion to mount the inspection object on the first mounting portion and an elevating mechanism for elevating the second mounting portion to mount the inspection object on the second mounting portion are provided.
According to the present invention, it is preferable that the first mounting portion includes: a mounting jig for mounting an inspection object; a mounting member on which the mounting jig is mounted; and a plurality of positioning pins protruding upward from the mounting member, wherein the mounting jig is formed with insertion holes into which the positioning pins are inserted, and the mounting jig is positioned in the horizontal direction with respect to the mounting member by the positioning pins and the insertion holes. With this configuration, the placing jig can be removed from the placing member by lifting up the placing jig. Therefore, the replacement operation when replacing the mounting jig according to the size, shape, etc. of the inspection object becomes easy.
(effect of the invention)
As described above, according to the inspection apparatus for lighting inspection of an inspection object of the present invention, the structure of the inspection apparatus can be simplified and the time for replacing the inspection object can be shortened.
Drawings
Fig. 1 is a front view for explaining a structure of an inspection apparatus according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a main part of the inspection apparatus shown in fig. 1.
Fig. 3 is a plan view for explaining the configuration of a main part of the inspection apparatus shown in fig. 2.
Fig. 4 is a view for explaining the structure of the second mounting portion, the slide door, and the like from the direction E-E in fig. 2.
Fig. 5 is an enlarged view of a portion F of fig. 2.
Fig. 6 is a diagram for explaining an operation of the holding portion shown in fig. 1.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(schematic configuration of inspection apparatus)
Fig. 1 is a front view for explaining a structure of an inspection apparatus 1 according to an embodiment of the present invention. Fig. 2 is an enlarged view of a main part of the inspection apparatus 1 shown in fig. 1.
The inspection apparatus 1 of the present embodiment is an apparatus for inspecting a liquid crystal panel 2 as an inspection object by lighting. The liquid crystal panel 2 is formed in a rectangular flat plate shape. The liquid crystal panel 2 is a relatively small panel used in, for example, a mobile terminal. The inspection apparatus 1 includes: a first mounting unit 3 for mounting the liquid crystal panel 2 during lighting inspection; a second mounting unit 4 on which the liquid crystal panel 2 before and after the lighting inspection is mounted; and a panel conveying mechanism 5 for conveying the liquid crystal panel 2 between the first mounting part 3 and the second mounting part 4. The panel conveying mechanism 5 includes: a holding unit 6 for holding the liquid crystal panel 2; a rotation mechanism 7 that rotates the holding portion 6 in an axial direction in which the vertical direction is rotational; and an elevating mechanism 8 for elevating the holding portion 6. In addition, the liquid crystal panel 2 is not mounted with a backlight.
The inspection apparatus 1 further includes: a backlight 10 that irradiates light from the back surface (lower surface) of the liquid crystal panel 2 during lighting inspection; a camera 11 disposed above the first mounting portion 3; a power supply unit 12 that supplies power to the liquid crystal panel 2 during lighting inspection; and a case 13 that houses the first mounting portion 3, the backlight 10, the camera 11, the power supply portion 12, and the like. The second mounting portion 4 is disposed outside the housing 13. The second placement unit 4 is disposed adjacent to the housing 13. The inspection apparatus 1 further includes a slide door 14 for closing an opening 13b, which will be described later, formed in the housing 13. The inspection apparatus 1 is provided on the gantry 15.
In the following description, a direction in which the second placement portion 4 is adjacent to the housing 13 (X direction in fig. 1 and the like) is referred to as a "left-right direction", and a direction orthogonal to the up-down direction (vertical direction) and the left-right direction (Y direction in fig. 1 and the like) is referred to as a "front-rear direction". The side where the housing 13 is disposed in the left-right direction (the side in the X1 direction in fig. 1 and the like) is referred to as the "right" side, and the opposite side (the side where the second placement unit 4 is disposed, the side in the X2 direction in fig. 1 and the like) is referred to as the "left" side.
The backlight 10 is disposed below the first mounting portion 3. The camera 11 is disposed above the first mounting portion 3 as described above, and captures an image of the liquid crystal panel 2 irradiated with the backlight 10. The camera 11 is connected to a lifting mechanism (not shown) for lifting and lowering the camera 11. The power feeding unit 12 is disposed on the right side of the first mounting unit 3. The power supply unit 12 has a contact probe (not shown) that contacts a power supply terminal formed on the liquid crystal panel 2, and supplies power to the liquid crystal panel 2 from the contact probe at the time of lighting inspection. The power supply unit 12 has a moving mechanism (not shown) for moving the contact probe. The moving mechanism rotates the contact probe in an axial direction in which the vertical direction is a rotational direction and moves the contact probe in a front-rear direction, a left-right direction, and a vertical direction.
(concrete Structure of inspection apparatus)
Fig. 3 is a plan view for explaining the configuration of a main part of the inspection apparatus 1 shown in fig. 2. Fig. 4 is a diagram illustrating the structure of the second mounting portion 4, the shutter 14, and the like from the direction E-E in fig. 2. Fig. 5 is an enlarged view of a portion F of fig. 2. Fig. 6 is a diagram for explaining the operation of the holding portion 6 shown in fig. 1.
The first mounting portion 3 includes: a mounting jig 18 for mounting the liquid crystal panel 2; two placement members 19 on which the placement jig 18 is placed; and a plurality of positioning pins 20, the plurality of positioning pins 20 protruding upward from one of the two mounting members 19. The first mounting portion 3 of the present embodiment has two positioning pins 20. The mounting member 19 is formed in a rectangular flat plate shape. The mounting member 19 is disposed so that the thickness direction and the vertical direction of the mounting member 19 coincide with each other. The backlight 10 is disposed below the mounting member 19. The two mounting members 19 are disposed with a space in the left-right direction so that light from the backlight 10 is applied to the liquid crystal panel 2, and light emitted from the backlight 10 passes between the two mounting members 19.
The positioning pin 20 is a stepped pin, and is composed of a large diameter portion 20a formed in a cylindrical shape and a small diameter portion 20b formed in a cylindrical shape having an outer diameter smaller than that of the large diameter portion 20 a. As shown in fig. 5, the small diameter portion 20b is inserted into and fixed to an insertion hole 19b formed in the mounting member 19. The stepped surface between the large diameter portion 20a and the small diameter portion 20b is in contact with the upper surface of the mounting member 19, and the large diameter portion 20a protrudes upward from the upper surface of the mounting member 19. The two positioning pins 20 are fixed to the mount member 19 with a gap therebetween in the front-rear direction.
The mounting jig 18 is formed in a rectangular flat plate shape. The placement jig 18 is placed on the upper surface of the placement member 19 such that the thickness direction of the placement jig 18 coincides with the vertical direction. The mounting jig 18 is formed with an insertion hole 18a into which the positioning pin 20 is inserted (see fig. 5). The insertion hole 18a penetrates the placement jig 18 in the vertical direction. The insertion hole 18a is formed in a circular hole shape. The large diameter portion 20a of the positioning pin 20 is inserted into the insertion hole 18 a. The thickness of the mounting jig 18 is formed to be larger than the length (length in the vertical direction) of the large diameter portion 20 a. The inner diameter of the insertion hole 18a is formed to be substantially equal to the outer diameter of the large diameter portion 20 a. The mounting jig 18 is positioned in the horizontal direction (front-rear-right direction) with respect to the mounting member 19 by the positioning pins 20 and the insertion holes 18 a.
In the present embodiment, the mounting jig 18 mounts two liquid crystal panels 2. That is, the first mounting unit 3 mounts the two liquid crystal panels 2, and the lighting inspection of the two liquid crystal panels 2 is performed simultaneously. The mounting jig 18 has two rectangular through holes 18b formed therein for irradiating the liquid crystal panel 2 with light from the backlight 10. The through hole 18b penetrates the placement jig 18 in the vertical direction. The two through holes 18b are formed with a predetermined gap therebetween in the front-rear direction. A planar mounting surface on which the liquid crystal panel 2 is mounted is formed at the edge of the through hole 18 b. The mounting surface is formed in a rectangular frame shape. The mounting surface has a plurality of suction holes formed therein, and the edge of the liquid crystal panel 2 mounted on the mounting surface is sucked by the suction holes.
The second mounting portion 4 includes: a mounting member 21 on which the liquid crystal panel 2 is mounted; and an alignment mechanism 22 for aligning the liquid crystal panel 2 placed on the placing member 21. The second mounting unit 4 of the present embodiment includes two mounting members 21, and the second mounting unit 4 mounts two liquid crystal panels 2. The two mounting members 21 are disposed at a predetermined interval in the front-rear direction. The height of the upper surface of the mounting member 21 is the same as the height of the upper surface of the mounting jig 18. The liquid crystal panel 2 placed on the second placement unit 4 before the lighting inspection is carried in by a carrying mechanism (not shown) of the liquid crystal panel 2 such as a robot. Then, the liquid crystal panel 2 after the lighting inspection placed on the second placing unit 4 is carried out by the carrying mechanism of the liquid crystal panel 2.
The alignment mechanism 22 has: a roller 23 for aligning the liquid crystal panel 2 in the left-right direction; rollers 24, 25 for aligning the liquid crystal panel 2 in the front-rear direction; a roller moving mechanism 26 for moving the roller 23 in the left-right direction; and a roller moving mechanism 27 for moving the rollers 24 and 25 in the front-rear direction. The roller 23 is rotatably held by a roller holding member 28 in an axial direction in which the roller rotates in the vertical direction, and the rollers 24 and 25 are rotatably held by roller holding members 29 and 30 in an axial direction in which the roller rotates in the vertical direction.
The rollers 23 are disposed on both sides of the two mounting members 21 in the left-right direction. The roller moving mechanism 26 is a linear actuator having a motor as a drive source. The roller holding member 28 is fixed to a movable portion of the roller moving mechanism 26. The rollers 23 are in contact with both left and right end surfaces of the liquid crystal panel 2 disposed on the mounting member 21, and align the liquid crystal panel 2 in the left-right direction.
The roller 25 is disposed between the two mounting members 21 in the front-rear direction, and the roller 24 is disposed outside the two mounting members 21 in the front-rear direction. The roller moving mechanism 27 is a linear actuator having a motor as a drive source, similarly to the roller moving mechanism 26. The roller holding members 29 and 30 are fixed to a movable portion of the roller moving mechanism 27. The roller 24 held by the roller holding member 29 can be brought into contact with the liquid crystal panel 2 placed on the placement member 21 arranged on one side in the front-rear direction of the two placement members 21 from one side in the front-rear direction, and the roller 25 held by the roller holding member 29 can be brought into contact with the liquid crystal panel 2 placed on the placement member 21 arranged on the other side in the front-rear direction from one side in the front-rear direction. The roller 24 held by the roller holding member 30 can be brought into contact with the liquid crystal panel 2 placed on the placement member 21 disposed on the other side in the front-rear direction from the other side in the front-rear direction, and the roller 25 held by the roller holding member 30 can be brought into contact with the liquid crystal panel 2 placed on the placement member 21 disposed on the one side in the front-rear direction from the other side in the front-rear direction. The rollers 24 and 25 contact both front and rear end surfaces of the liquid crystal panel 2 mounted on the mounting member 21, and align the liquid crystal panel 2 in the front-rear direction. Further, the mounting position of the roller 25 to the roller holding members 29, 30 in the front-rear direction is adjustable. The roller holding members 29 and 30 are formed with long holes for adjusting the attachment position of the roller 25 in the front-rear direction.
The holding portion 6 has: a holding member 33 formed in a shape of an elongated substantially rectangular flat plate; a holding mechanism 34 attached to one end side (one end side in the longitudinal direction) of the holding member 33 and holding the liquid crystal panel 2; and a holding mechanism 35 attached to the other end side (the other side in the longitudinal direction) of the holding member 33 and holding the liquid crystal panel 2. That is, the holding portion 6 has a holding mechanism 34 on one end side and a holding mechanism 35 on the other end side. The holding mechanism 34 of the present embodiment is a first holding mechanism, and the holding mechanism 35 is a second holding mechanism.
The holding member 33 is disposed so that the thickness direction of the holding member 33 coincides with the vertical direction. The holding mechanism 34 is attached to the lower side of one end side of the holding member 33, and the holding mechanism 35 is attached to the lower side of the other end side of the holding member 33. The holding mechanisms 34 and 35 are disposed above the upper surface of the mounting jig 18 and the upper surface of the mounting member 21. The holding mechanisms 34 and 35 are suction mechanisms that hold the liquid crystal panel 2 by sucking the upper surface of the liquid crystal panel 2. The holding mechanism 34 of the present embodiment sucks and holds the two liquid crystal panels 2. Similarly, the holding mechanism 35 sucks and holds the two liquid crystal panels 2.
The lifting mechanism 8 is accommodated in the housing 13. The elevating mechanism 8 is disposed between the first mounting portion 3 and the second mounting portion 4 in the left-right direction. As shown in fig. 2, the lifting mechanism 8 includes: a motor 36; a screw member 37 coupled to an output shaft of the motor 36; and a nut member 38 that is engaged with the screw member 37 and fixed to the holding portion 6. The elevating mechanism 8 includes a guide shaft 39 and a guide bush 40 for guiding the holding portion 6 in the vertical direction. The lifting mechanism 8 of the present embodiment has four guide shafts 39 and four guide bushes 40.
The upper end of the guide shaft 39 is fixed to the fixed plate 41. The lower end of the guide shaft 39 is fixed to a fixing plate 42. The four guide shafts 39 are disposed in a square shape when viewed in the vertical direction. Four guide bosses 40 are fixed to the central portion of the holding member 33. That is, the four guide bosses 40 are fixed to the central portion of the holding portion 6. The guide shaft 39 is inserted through the guide boss 40.
The motor 36 is a servo motor. The motor 36 is disposed such that an output shaft of the motor 36 protrudes downward. The motor 36 is disposed above the fixed plate 41 and fixed to the fixed plate 41 via a bracket 43. The screw member 37 is attached to the output shaft of the motor 36 via a coupling 44. The upper end side of the screw member 37 is rotatably supported by a bearing attached to the fixed plate 41, and the lower end side of the screw member 37 is rotatably supported by a bearing attached to the fixed plate 42. The nut member 38 is fixed to the center of the holding member 33. That is, the nut member 38 is fixed to the center position of the holding portion 6.
The rotation mechanism 7 is accommodated in the housing 13. The rotation mechanism 7 is disposed between the first mounting portion 3 and the second mounting portion 4 in the left-right direction. The rotation mechanism 7 is a rotation actuator having a motor 47 as a drive source. The motor 47 is a servomotor. A fixed plate 42 is fixed to the upper end surface of the rotation mechanism 7, and the rotation mechanism 7 rotates the holding portion 6 together with the elevation mechanism 8 and the fixed plates 41 and 42. The rotation center of the rotation mechanism 7 coincides with the center position of the holding member 33 when viewed in the vertical direction. That is, the rotation mechanism 7 rotates the holding portion 6 around the center position of the holding portion 6 as the rotation center. In the present embodiment, the rotation center of the rotation mechanism 7 coincides with the rotation center of the motor 36 when viewed in the vertical direction. However, the rotation center of the rotation mechanism 7 may not coincide with the rotation center of the motor 36 when viewed in the vertical direction.
When the holding portion 6 rotates, the holding portion 6 rises to a predetermined position. When the liquid crystal panel 2 held by the holding mechanisms 34 and 35 is placed on the first placing portion 3 and the second placing portion 4, and when the liquid crystal panel 2 placed on the first placing portion 3 and the second placing portion 4 is held by the holding mechanisms 34 and 35, the holding portion 6 is lowered from the predetermined position and then raised to the predetermined position.
The case 13 is formed in a rectangular parallelepiped box shape. The left side surface 13a constituting the left side surface of the housing 13 is disposed at a position close to the right side of the second mounting portion 4 and at a position close to the left side of the rotation mechanism 7 and the elevating mechanism 8. The left side surface 13a is formed with an opening 13b through which a part of the holding portion 6 passes when the holding portion 6 rotates. The opening 13b penetrates the left side surface 13a in the left-right direction. As shown in fig. 4, the opening 13b is formed in a rectangular shape elongated in the front-rear direction.
The slide door 14 is disposed on the left side of the left side surface 13 a. The slide door 14 moves between a closing position 14A (a position shown by a two-dot chain line in fig. 4) for closing the opening 13B and an opening position 14B (a position shown by a solid line in fig. 2 and 4) for opening the opening 13B. Specifically, the shutter 14 moves up and down between a closed position 14A that is a lower limit position of the movement range of the shutter 14 and an open position 14B that is an upper limit position of the movement range of the shutter 14. The air cylinder 48 for moving the slide door 14 up and down is connected to the slide door 14.
As shown in fig. 4, a guide rail 49 for guiding the slide door 14 in the up-down direction is fixed to the left surface of the left side surface portion 13 a. A guide block 50 that engages with the guide rail 49 is fixed to the right surface of the slide door 14. A damper 51 and a damper 52 are attached to the left surface of the left side surface portion 13a, the damper 51 is used to absorb an impact when the slide door 14 stopped at the closed position 14A is stopped, and the damper 52 is used to absorb an impact when the slide door 14 stopped at the open position 14B is stopped. The slide door 14 is formed with a contact portion 14a that contacts the damper 51 and a contact portion 14b that contacts the damper 52.
As described above, the rotation mechanism 7 rotates the holding portion 6. In the present embodiment, the rotation mechanism 7 rotates the holding unit 6 toward the first replacement position 6A, the second replacement position 6B, and the standby position 6C, and in the first replacement position 6A (the position shown in fig. 2 and 6A), the holding mechanism 34 is disposed above the first mounting unit 3, the holding mechanism 35 is disposed above the second mounting unit 4, and in the second replacement position 6B (the position shown in fig. 6B), the holding unit 6 is rotated 180 ° from the first replacement position 6A, the holding mechanism 34 is disposed above the second mounting unit 4, the holding mechanism 35 is disposed above the first mounting unit 3, and in the standby position 6C (the position shown in fig. 3), the holding unit 6 is disposed at a position where the shutter 14 can move toward the closed position 14A.
When the holding portion 6 is at the first replacement position 6A, the holding mechanism 34 is disposed above the two through holes 18b, and the holding mechanism 35 is disposed above the two mounting members 21. When the holding unit 6 is at the second replacement position 6B, the holding mechanism 34 is disposed above the two placement members 21, and the holding mechanism 35 is disposed above the two through holes 18B. The standby position 6C in the present embodiment is a position where the holding portion 6 is rotated by 90 ° from the first replacement position 6A and the second replacement position 6B. The holding portion 6 at the standby position 6C is disposed inside the housing 13.
(operation of inspection apparatus)
In the inspection apparatus 1, the two liquid crystal panels 2 placed on the first placement unit 3 are inspected to be lit with the holding unit 6 disposed at the standby position 6C and the slide door 14 disposed at the closed position 14A. When the liquid crystal panel 2 is inspected by lighting, the interior of the case 13 becomes a dark room, and the backlight 10 irradiates light to the liquid crystal panel 2 placed on the placing jig 18. When the lighting inspection of the liquid crystal panel 2 is performed, the holding mechanisms 34 and 35 do not hold the liquid crystal panel 2.
When the lighting inspection of the liquid crystal panel 2 is finished, the shutter 14 at the closed position 14A moves toward the open position 14B. Then, the holding portion 6 in the standby position 6C is rotated by 90 ° and moved toward one of the first replacement position 6A and the second replacement position 6B. For example, the holding portion 6 at the standby position 6C moves toward the first replacement position 6A. In this state, the holding unit 6 is lowered, the liquid crystal panel 2 after the inspection placed on the first placing unit 3 is held by the holding mechanism 34, the liquid crystal panel 2 before the inspection placed on the second placing unit 4 is held by the holding mechanism 35, and thereafter, the holding unit 6 is raised.
Thereafter, the holder 6 in the first replacement position 6A is rotated by 180 ° and moved toward the second replacement position 6B. In this state, the holding unit 6 is lowered, the liquid crystal panel 2 before inspection is placed on the first placing unit 3 by the holding mechanism 35, the liquid crystal panel 2 after inspection is placed on the second placing unit 4 by the holding mechanism 34, and then the holding unit 6 is raised. Thereafter, the holding portion 6 at the second replacement position 6B is rotated by 90 ° and moved to the standby position 6C. When the holding portion 6 moves toward the standby position 6C, the shutter 14 moves from the open position 14B to the closed position 14A. When the slide door 14 moves toward the closed position 14A, the inside of the case 13 becomes a dark room, and the lighting inspection of the next two liquid crystal panels 2 is performed.
(main effect of the present embodiment)
As described above, in the present embodiment, the inspection apparatus 1 includes: a holding portion 6 having a holding mechanism 34 on one end side and a holding mechanism 35 on the other end side; and a rotation mechanism 7 that rotates the holding unit 6 about the center position of the holding unit 6 as a rotation center in the vertical direction as a rotation axial direction. In the present embodiment, the rotation mechanism 7 rotates the holding unit 6 toward the first replacement position 6A and the second replacement position 6B, and in the first replacement position 6A, the holding mechanism 34 is disposed above the first placement unit 3, and the holding mechanism 35 is disposed above the second placement unit 4, and in the second replacement position 6B, the holding unit 6 is rotated 180 ° from the first replacement position 6A, and the holding mechanism 34 is disposed above the second placement unit 4, and the holding mechanism 35 is disposed above the first placement unit 3.
Therefore, in the present embodiment, for example, by rotating the holding portion 6 from the first replacement position 6A to the second replacement position 6B, the liquid crystal panel 2 placed on the first placement portion 3 can be replaced as described above. That is, in the present embodiment, the liquid crystal panel 2 can be replaced with one holding portion 6 and one rotation mechanism 7. Therefore, in the present embodiment, the configuration of the inspection apparatus 1 can be simplified as compared with a case where a mechanism for carrying in the liquid crystal panel 2 to the first mounting portion 3 and a mechanism for carrying out the liquid crystal panel 2 from the first mounting portion 3 are separately provided.
In addition, in the present embodiment, for example, if the holding unit 6 is rotated from the first replacement position 6A to the second replacement position 6B, the liquid crystal panel 2 placed on the first placement unit 3 can be replaced, and therefore, the replacement time of the liquid crystal panel 2 can be shortened. In the present embodiment, since the holder 6 is rotated toward the standby position 6C where the holder 6 is disposed at a position where the slide door 14 can move toward the closed position 14A, the opening 13b can be closed by the slide door 14 at the time of lighting inspection, and the inside of the case 13 becomes a dark room.
In the present embodiment, the standby position 6C is a position in which the holding portion 6 is rotated by 90 ° from the first replacement position 6A and the second replacement position 6B. Therefore, in the present embodiment, even if the distance (distance in the left-right direction) between the rotation center of the holding portion 6 and the opening 13b is close, the holding portion 6 is prevented from contacting the shutter 14 when the shutter 14 is closed, and the opening 13b can be closed by the shutter 14. Therefore, in the present embodiment, the inspection apparatus 1 can be downsized. Further, since the standby position 6C is a position where the holding unit 6 is rotated by 90 ° from the first replacement position 6A and the second replacement position 6B, the entire holding unit 6 can be reliably retracted from between the liquid crystal panel 2 placed on the placement unit 3 and the camera 11 when the lighting inspection of the liquid crystal panel 2 is performed. Therefore, in the present embodiment, the entire image of the liquid crystal panel 2 can be reliably projected onto the camera 11.
In the present embodiment, the inspection apparatus 1 includes an elevating mechanism 8 for elevating and lowering the holding unit 6. Therefore, in the present embodiment, the structure of the inspection apparatus 1 can be simplified as compared with a case where, instead of the elevating mechanism 8, an elevating mechanism for elevating the first mounting unit 3 to mount the liquid crystal panel 2 on the first mounting unit 3 and an elevating mechanism for elevating the second mounting unit 4 to mount the liquid crystal panel 2 on the second mounting unit 4 are provided.
In the present embodiment, the mounting jig 18 is positioned in the horizontal direction with respect to the mounting member 19 by the positioning pins 20 protruding upward from the mounting member 19 and the insertion holes 18a of the mounting jig 18 into which the positioning pins 20 are inserted. Therefore, in the present embodiment, the placing jig 18 can be removed from the placing member 19 by lifting up the placing jig 18. Therefore, in the present embodiment, the replacement operation when replacing the mounting jig 18 in accordance with the size, shape, or the like of the liquid crystal panel 2 becomes easy.
(other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited thereto, and various modifications can be made within a range not changing the gist of the present invention.
In the above-described embodiment, the standby position 6C may be a position in which the holding portion 6 is rotated by an angle of less than 90 ° from the first replacement position 6A, or a position in which the holding portion 6 is rotated by an angle of more than 90 ° from the first replacement position 6A. In the above-described embodiment, the holding portion 6 located at the standby position 6C may be disposed outside the housing 13. In this case, the rotation mechanism 7 and the lifting mechanism 8 are disposed outside the housing 13.
In the above-described embodiment, the inspection apparatus 1 may include, instead of the elevating mechanism 8, an elevating mechanism for elevating the first mounting portion 3 and an elevating mechanism for elevating the second mounting portion 4. In the above-described embodiment, the slide door 14 may slide in the front-rear direction between the closed position for closing the opening portion 13b and the open position for opening the opening portion 13b, or may rotate in the axial direction in which the vertical direction or the front-rear direction is rotated.
In the above-described embodiment, the number of the liquid crystal panels 2 placed on the first placing unit 3 and the second placing unit 4 may be one. In this case, the holding mechanisms 34 and 35 attract and hold one liquid crystal panel 2. The number of the liquid crystal panels 2 placed on the first placing unit 3 and the second placing unit 4 may be three or more. In this case, the holding mechanisms 34 and 35 attract and hold three or more liquid crystal panels 2. In the above-described embodiment, the lighting inspection of the liquid crystal panel 2 is performed in the dark room inside the housing 13, but the lighting inspection of the inspection object other than the liquid crystal panel 2 may be performed in the dark room inside the housing 13D.
Description of the reference numerals
1 inspection device
2 liquid crystal panel (inspection object)
3 first placing part
4 second placing part
6 holding part
6A first alternative position
6B second alternate position
6C standby position
7 rotating mechanism
8 lifting mechanism
13 casing
13b opening part
14 sliding door
14A closed position
Position of 14B
18-placing jig
18a is inserted into the hole
19 placing part
20 positioning pin
34 holding mechanism (first holding mechanism)
35 holding means (second holding means).
Claims (6)
1. An inspection apparatus for performing lighting inspection on an inspection object, comprising:
a holding unit having a first holding mechanism for holding the inspection object on one end side and a second holding mechanism for holding the inspection object on the other end side;
a rotation mechanism that rotates the holding portion with a vertical direction as a rotation axis and a central position of the holding portion as a rotation center;
a first placing unit for placing the inspection object during lighting inspection;
a second mounting unit on which the inspection object before and after lighting inspection is mounted;
a housing that is formed with an opening through which a part of the holding portion passes when the holding portion rotates, and that accommodates the first placement portion; and
a sliding door that moves between a closed position closing the opening portion and an open position opening the opening portion,
the second placement portion is disposed outside the housing,
the rotating mechanism rotates the holding part to a first replacement position, a second replacement position and a standby position,
in the first replacement position, the first holding mechanism is disposed above the first placement portion, and the second holding mechanism is disposed above the second placement portion,
in the second replacement position, the holding portion is rotated by 180 ° from the first replacement position, the first holding mechanism is disposed above the second placement portion, and the second holding mechanism is disposed above the first placement portion,
in the standby position, the holding portion is disposed at a position where the slide door can move toward the closed position.
2. The inspection device of claim 1,
performing lighting inspection of the inspection object placed on the first placing portion in a state where the holding portion is placed at the standby position and the slide door is placed at the closed position,
when lighting inspection of the inspection object is completed, the slide door at the closed position moves to the open position, and the holding unit at the standby position moves to one of the first replacement position and the second replacement position, then moves to the other of the first replacement position and the second replacement position, and then moves to the standby position.
3. The inspection device according to claim 1 or 2,
the standby position is a position in which the holding portion is rotated by 90 ° from the first replacement position and the second replacement position.
4. The inspection device according to claim 1 or 2,
the holding portion in the standby position is disposed inside the housing.
5. The inspection device according to claim 1 or 2,
the inspection device includes an elevating mechanism for elevating the holding portion.
6. The inspection device according to claim 1 or 2,
the first placing part includes:
a mounting jig on which the inspection object is mounted;
a placement member on which the placement jig is placed; and
a plurality of positioning pins protruding upward from the placement member,
the mounting jig is formed with an insertion hole into which the positioning pin is inserted,
the mounting jig is positioned in the horizontal direction with respect to the mounting member by the positioning pin and the insertion hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017176717A JP2019052914A (en) | 2017-09-14 | 2017-09-14 | Inspection device |
| JP2017-176717 | 2017-09-14 | ||
| PCT/JP2018/033536 WO2019054345A1 (en) | 2017-09-14 | 2018-09-11 | Inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111065903A true CN111065903A (en) | 2020-04-24 |
| CN111065903B CN111065903B (en) | 2022-09-27 |
Family
ID=65722705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880057119.9A Active CN111065903B (en) | 2017-09-14 | 2018-09-11 | Inspection apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2019052914A (en) |
| CN (1) | CN111065903B (en) |
| WO (1) | WO2019054345A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253497A (en) * | 2021-06-08 | 2021-08-13 | 江苏二五七特显科技集团有限公司 | High-definition liquid crystal display assembling tool clamp and assembling method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020167256A (en) * | 2019-03-29 | 2020-10-08 | 日本電産サンキョー株式会社 | Panel transfer device and panel transfer system |
| JP7219172B2 (en) * | 2019-06-14 | 2023-02-07 | 日本電産サンキョー株式会社 | inspection system |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2019052914A (en) | 2019-04-04 |
| CN111065903B (en) | 2022-09-27 |
| WO2019054345A1 (en) | 2019-03-21 |
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