JP2019052914A - Inspection device - Google Patents

Abstract

To provide an inspection device for inspecting an inspection object, with which it is possible to shorten an inspection object replacement time while simplifying the configuration.SOLUTION: This inspection device comprises a holding unit 6 having a holding mechanism 34 at one end and a holding mechanism 35 at the other end, and a rotation mechanism 7 for rotating the holding unit 6 around the center position of the holding unit 6 as the center of rotation, the vertical direction being the axial direction of rotation. The rotation mechanism 7 rotates the holding unit 6 to a first replacement position where the holding mechanism 34 is arranged upward of a first placement unit 3 during lighting inspection on which an inspection object 2 before and after lighting inspection is placed and the holding mechanism 35 is arranged upward of a second placement unit 4 on which the inspection object 2 is placed, and a second replacement position where the holding unit 6 rotates 180 degrees from the first replacement position and the holding mechanism 34 is arranged upward of the second placement unit 4 and the holding mechanism 35 is arranged upward of the first placement unit 3.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an inspection apparatus for inspecting lighting of an inspection object.

  2. Description of the Related Art Conventionally, an inspection apparatus 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 a liquid crystal panel manufacturing process. The inspection apparatus includes a prober that performs a lighting inspection of the liquid crystal panel, a carry-in conveyor that conveys the liquid crystal panel before the inspection toward the prober, a carry-in mechanism that carries the liquid crystal panel carried by the carry-in conveyor into the prober, A carry-out mechanism for carrying out the liquid crystal panel after inspection from the prober and a carry-out conveyor for carrying the liquid crystal panel carried out by the carry-out mechanism are provided.

  In the inspection apparatus described in Patent Document 1, the prober includes a work table on which the liquid crystal panel is placed, a backlight that irradiates the liquid crystal panel with light from the back surface of the liquid crystal panel, and a screen on which an image of the surface of the liquid crystal panel is projected. And an optical system disposed between the work table and the screen, and these configurations are disposed in the housing. The housing is provided with a shutter that opens and closes when the liquid crystal panel is carried in by the carry-in mechanism, and a shutter that opens and closes when the liquid crystal panel is carried out by the carry-out mechanism.

  In the inspection apparatus described in Patent Document 1, when the shutter 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 test of the liquid crystal panel is performed in a housing in which the shutter is closed. In other words, the lighting inspection of the liquid crystal panel is performed inside the casing that is a dark room. When the lighting inspection of the liquid crystal panel is completed, the shutter is opened, and the liquid crystal panel after the inspection is carried out from the work table by the carry-out mechanism, and then the liquid crystal panel before the inspection is carried into the work table by the carry-in mechanism. Further, when the liquid crystal panel before inspection is carried into the work table, the shutter is closed, and the next liquid crystal panel lighting inspection is performed inside the casing that has become a dark room.

JP 2007-109773 A

  In the inspection apparatus described in Patent Document 1, a carry-in mechanism for carrying in a liquid crystal panel before inspection into a work table and a carry-out mechanism for carrying out a liquid crystal panel after inspection from the work table are individually provided. Therefore, the configuration of the inspection apparatus described in Patent Document 1 is complicated. Moreover, in the inspection apparatus described in Patent Document 1, it is preferable that the replacement time of the liquid crystal panel placed on the work table is short in order to increase the inspection efficiency of the liquid crystal panel. However, in this inspection apparatus, when the lighting inspection of the liquid crystal panel is completed, the liquid crystal panel after the inspection is carried out from the work table by the carry-out mechanism, and then the liquid crystal panel before the inspection is carried into the work table by the carry-in mechanism. The replacement time of the liquid crystal panel becomes longer.

  Accordingly, an object of the present invention is to provide an inspection apparatus capable of shortening the replacement time of the inspection object while simplifying the configuration in the inspection apparatus for lighting inspection of the inspection object.

  In order to solve the above problems, an inspection apparatus according to the present invention has a first holding mechanism for holding an inspection object on one end side and holds the inspection object in an inspection apparatus for lighting inspection of the inspection object. A holding portion having a second holding mechanism on the other end side, a rotating mechanism that rotates the holding portion with the up-down direction as the axial direction of rotation and the center position of the holding portion as the rotation center, and an inspection object are mounted during lighting inspection. A first placement portion to be placed, a second placement portion on which the inspection object before and after the lighting inspection is placed, and an opening through which a part of the holding portion passes when the holding portion rotates. And a shutter that moves between a closed position that closes the opening and an open position that opens the opening, and the second mounting portion includes a casing. The rotating mechanism has a first holding mechanism disposed above the first mounting portion. And a first replacement position where the second holding mechanism is disposed above the second placement portion, and the holding portion rotates 180 ° from the first replacement position so that the first holding mechanism is located above the second placement portion. And the second holding mechanism is disposed above the first mounting portion, and the holding portion is disposed at a standby position where the holding portion is disposed at a position where the shutter can move to the closed position. It is made to rotate.

  An inspection apparatus according to the present invention includes a holding portion having a first holding mechanism on one end side and a second holding mechanism on the other end side, and a vertical direction as an axis direction of rotation and a center position of the holding portion as a rotation center. And a rotation mechanism that rotates the holding portion. In the present invention, the rotating mechanism has the first holding mechanism disposed above the first mounting portion on which the inspection object is placed during the lighting inspection, and the inspection object before and after the lighting inspection. A first replacement position in which the second holding mechanism is disposed above the second mounting portion to be mounted, and the holding portion rotates 180 ° from the first replacement position, so that the first holding mechanism is in the second mounting portion. The holding unit is rotated to the second replacement position that is arranged on the upper side and the second holding mechanism is arranged on the upper side of the first placement unit.

  Therefore, in this invention, the 1st holding mechanism and the 2nd holding mechanism hold | maintain the holding | maintenance part which hold | maintains to-be-inspected object from a 1st replacement position to a 2nd replacement position, or from a 2nd replacement position to a 1st replacement position. It is possible to replace the inspection object placed on the first placement unit by rotating the first placement part. That is, in the present invention, it is possible to replace the inspection object using one holding unit and one rotation mechanism. Therefore, in this invention, compared with the case where the mechanism for carrying in the inspection object to the first mounting part and the mechanism for carrying out the inspection object from the first mounting part are provided individually, The configuration can be simplified.

  Moreover, in this invention, if a holding | maintenance part is rotated from a 1st replacement position to a 2nd replacement position or from a 2nd replacement position to a 1st replacement position, the test object mounted in a 1st mounting part will be carried out. Therefore, it is possible to shorten the replacement time of the inspection object. Further, in the present invention, since the holding unit is rotated to the standby position where the holding unit is disposed at a position where the shutter can move to the closed position, the opening is closed by the shutter and the inside of the housing is made into a dark room at the time of lighting inspection. It becomes possible to do.

  In the present invention, in the inspection apparatus, for example, a lighting inspection of the inspection object placed on the first placement portion is performed in a state where the holding portion is located at the standby position and the shutter is located at the closed position. When the lighting inspection of the inspection object is completed, the shutter in the closed position has moved to the open position, and the holding unit in the standby position has moved to either the first replacement position or the second replacement position. Then, it moves to the other of the first replacement position and the second replacement position, and then moves to the standby position.

  In the present invention, it is preferable that the standby position is a position where the holding unit is rotated 90 ° from the first replacement position and the second replacement position. If comprised in this way, at the time of lighting inspection of a test subject, between a test subject placed in the 1st placing part and a camera for inspection arranged above a test subject, a holding part It becomes possible to evacuate the whole reliably. Therefore, the entire image of the inspection object can be reliably transferred to the inspection camera. Also, with this configuration, even when the distance between the rotation center of the holding portion and the opening is close, when the shutter is closed, the contact between the holding portion and the shutter is prevented and the opening is closed by the shutter. It becomes possible. Therefore, the inspection apparatus can be reduced in size.

  In the present invention, for example, the holding portion in the standby position is disposed inside the housing. Moreover, in this invention, it is preferable that an inspection apparatus is provided with the raising / lowering mechanism which raises / lowers a holding | maintenance part. If comprised in this way, the raising / lowering mechanism which raises / lowers the 1st mounting part in order to mount an inspection target object in a 1st mounting part, and 2nd in order to mount an inspection target object in a 2nd mounting part. The configuration of the inspection apparatus can be simplified as compared with a case where an elevating mechanism for elevating the placement unit is provided.

  In the present invention, the first mounting portion protrudes upward from the mounting member, a mounting jig on which the inspection object is mounted, a mounting member on which the mounting jig is mounted. The mounting jig is formed with an insertion hole into which the positioning pin is inserted, and the mounting jig is horizontally positioned with respect to the mounting member by the positioning pin and the insertion hole. It is preferably positioned. If comprised in this way, if the mounting jig | tool is lifted, it will become possible to remove the mounting jig | tool from a mounting member. Therefore, the exchange work when exchanging the mounting jig according to the size or shape of the inspection object is facilitated.

  As described above, according to the present invention, in the inspection apparatus for performing the lighting inspection of the inspection object, it is possible to shorten the replacement time of the inspection object while simplifying the configuration of the inspection apparatus.

It is a front view for demonstrating the structure of the test | inspection apparatus concerning embodiment of this invention. It is an enlarged view of the principal part of the inspection apparatus shown in FIG. It is a top view for demonstrating the structure of the principal part of the inspection apparatus shown in FIG. It is a figure for demonstrating structures, such as a 2nd mounting part and a shutter, from the EE direction of FIG. It is an enlarged view of the F section of FIG. It is a figure for demonstrating operation | movement of the holding | maintenance part shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Schematic configuration of inspection equipment)
FIG. 1 is a front view for explaining the configuration 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.

  The inspection apparatus 1 of this embodiment is an apparatus for lighting and inspecting a liquid crystal panel 2 that is an inspection object. The liquid crystal panel 2 is formed in a rectangular flat plate shape. The liquid crystal panel 2 is a relatively small panel used for, for example, a portable terminal. The inspection apparatus 1 includes a first placement unit 3 on which the liquid crystal panel 2 is placed at the time of lighting inspection, a second placement unit 4 on which the liquid crystal panel 2 before and after the lighting inspection is placed, A panel transport mechanism 5 that transports the liquid crystal panel 2 between the mounting unit 3 and the second mounting unit 4 is provided. The panel transport mechanism 5 includes a holding unit 6 that holds the liquid crystal panel 2, a rotating mechanism 7 that rotates the holding unit 6 with the vertical direction as the axis direction of rotation, and an elevating mechanism 8 that raises and lowers the holding unit 6. . Note that a backlight is not attached to the liquid crystal panel 2.

  Further, the inspection apparatus 1 includes a backlight 10 that emits light from the back surface (lower surface) of the liquid crystal panel 2 at the time of lighting inspection, a camera 11 that is disposed above the first placement unit 3, and the liquid crystal panel 2 at the time of lighting inspection. A power supply unit 12 that supplies power to the first power supply unit 12 and a housing 13 in which the first placement unit 3, the backlight 10, the camera 11, the power supply unit 12, and the like are accommodated. The second placement unit 4 is disposed outside the housing 13. The second placement unit 4 is disposed adjacent to the housing 13. In addition, the inspection apparatus 1 includes a shutter 14 for closing an opening 13 b described later formed in the housing 13. The inspection apparatus 1 is installed on the gantry 15.

  In the following description, the direction in which the second placement unit 4 and the housing 13 are adjacent (the X direction in FIG. 1 and the like) is referred to as “left-right direction”, and is orthogonal to the up-down direction (vertical direction) and the left-right direction. The direction (Y direction in FIG. 1 and the like) is referred to as “front-rear direction”. Further, the side (the X1 direction side in FIG. 1 or the like) in the left and right direction is the “right” side, and the opposite side (the side on which the second mounting portion 4 is arranged, FIG. The X2 direction side of 1 etc. is the “left” side.

  The backlight 10 is disposed on the lower side of the first placement unit 3. The camera 11 is arranged above the first placement unit 3 as described above, and photographs the liquid crystal panel 2 illuminated by the backlight 10. The camera 11 is connected to a lifting mechanism (not shown) that lifts and lowers the camera 11. The power supply unit 12 is disposed on the right side of the first placement unit 3. The power supply unit 12 includes 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 during a lighting test. The power supply unit 12 includes a moving mechanism (not shown) that moves the contact probe. This moving mechanism rotates the contact probe with the vertical direction as the axial direction of rotation, and moves the contact probe in the front-rear direction, the left-right direction, and the vertical direction.

(Specific configuration of inspection device)
FIG. 3 is a plan view for explaining the configuration of the main part of the inspection apparatus 1 shown in FIG. FIG. 4 is a diagram for explaining the configuration of the second placement unit 4 and the shutter 14 from the EE direction of FIG. FIG. 5 is an enlarged view of a portion F in FIG. FIG. 6 is a diagram for explaining the operation of the holding unit 6 shown in FIG.

  The first placement unit 3 includes a placement jig 18 on which the liquid crystal panel 2 is placed, two placement members 19 on which the placement jig 18 is placed, and two placement members. And a plurality of positioning pins 20 projecting upward from one mounting member 19. The first placement portion 3 of this embodiment includes 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 of the mounting member 19 matches the vertical direction. The backlight 10 is disposed below the placement member 19. The two mounting members 19 are arranged in a state of being spaced apart in the left-right direction so that the light from the backlight 10 is irradiated onto the liquid crystal panel 2. The light emitted from the backlight 10 is 2 It passes between the mounting members 19.

  The positioning pin 20 is a stepped pin and includes a large diameter portion 20a formed in a columnar shape and a small diameter portion 20b formed in a columnar shape having an outer diameter smaller than that of the large diameter portion 20a. As shown in FIG. 5, the small diameter portion 20 b is inserted and fixed in an insertion hole 19 b formed in the mounting member 19. The step surface between the large diameter portion 20 a and the small diameter portion 20 b is in contact with the upper surface of the mounting member 19, and the large diameter portion 20 a protrudes upward from the upper surface of the mounting member 19. The two positioning pins 20 are fixed to the mounting member 19 with a space in the front-rear direction.

  The mounting jig 18 is formed in a rectangular flat plate shape. The mounting jig 18 is mounted on the upper surface of the mounting member 19 so that the thickness direction of the mounting jig 18 matches the vertical direction. An insertion hole 18a into which the positioning pin 20 is inserted is formed in the mounting jig 18 (see FIG. 5). The insertion hole 18a penetrates the mounting jig 18 in the vertical direction. The insertion hole 18a is formed in a round hole shape. The large diameter portion 20a of the positioning pin 20 is inserted into the insertion hole 18a. The thickness of the mounting jig 18 is thicker than the length of the large-diameter portion 20a (length in the vertical direction). The inner diameter of the insertion hole 18a is substantially equal to the outer diameter of the large diameter portion 20a. The mounting jig 18 is positioned in the horizontal direction (front / rear / left / right direction) with respect to the mounting member 19 by the positioning pins 20 and the insertion holes 18a.

  In this embodiment, two liquid crystal panels 2 are placed on the placement jig 18. That is, the two liquid crystal panels 2 are placed on the first placement unit 3 and the lighting inspection of the two liquid crystal panels 2 is performed simultaneously. The mounting jig 18 is formed with two rectangular through holes 18b for illuminating the liquid crystal panel 2 with the light of the backlight 10. The through hole 18b penetrates the mounting jig 18 in the vertical direction. The two through holes 18b are formed in a state where a predetermined interval is provided in the front-rear direction. A planar placement surface on which the liquid crystal panel 2 is placed is formed at the edge of the through hole 18b. This mounting surface is formed in a rectangular frame shape. A plurality of suction holes are formed on the placement surface, and the edge of the liquid crystal panel 2 placed on the placement surface is sucked into the suction holes.

  The second placement unit 4 includes a placement member 21 on which the liquid crystal panel 2 is placed, and an alignment mechanism 22 that aligns the liquid crystal panel 2 placed on the placement member 21. The second placement unit 4 of this embodiment includes two placement members 21, and two liquid crystal panels 2 are placed on the second placement unit 4. The two mounting members 21 are disposed in a state where a predetermined interval is provided 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. In addition, the liquid crystal panel 2 before the lighting test placed on the second placement unit 4 is carried in by a transport mechanism (not shown) of the liquid crystal panel 2 such as a robot. The liquid crystal panel 2 after the lighting inspection placed on the second placement unit 4 is carried out by the transport mechanism of the liquid crystal panel 2.

  The alignment mechanism 22 includes a roller 23 for aligning the liquid crystal panel 2 in the left-right direction, rollers 24 and 25 for aligning the liquid crystal panel 2 in the front-rear direction, and a roller moving mechanism for moving the roller 23 in the left-right direction. 26 and a roller moving mechanism 27 for moving the rollers 24 and 25 in the front-rear direction. The roller 23 is held by a roller holding member 28 so as to be able to rotate with the vertical direction as the axis direction of rotation, and the rollers 24 and 25 can be rotated with the vertical direction as the axis direction of rotation. It is held by roller holding members 29 and 30.

  The rollers 23 are disposed on both sides of the two placement members 21 in the left-right direction. The roller moving mechanism 26 is a linear actuator that uses a motor as a drive source. The roller holding member 28 is fixed to the movable part of the roller moving mechanism 26. The roller 23 contacts the left and right end surfaces of the liquid crystal panel 2 placed on the placement member 21 and aligns the liquid crystal panel 2 in the left-right direction.

  The roller 25 is disposed between the two placement members 21 in the front-rear direction, and the roller 24 is disposed outside the two placement members 21 in the front-rear direction. Similar to the roller moving mechanism 26, the roller moving mechanism 27 is a linear actuator using a motor as a drive source. The roller holding members 29 and 30 are fixed to the movable part of the roller moving mechanism 27. The roller 24 held by the roller holding member 29 is moved from one side in the front-rear direction to the liquid crystal panel 2 placed on the placement member 21 arranged on one side in the front-rear direction among the two placement members 21. The roller 25 held by the roller holding member 29 can come 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. It has become. The roller 24 held by the roller holding member 30 can come 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 the other side in the front-rear direction. The roller 25 held by 30 can come into contact with the liquid crystal panel 2 placed on the placement member 21 arranged on one side in the front-rear direction from the other side in the front-rear direction. The rollers 24 and 25 are in contact with the front and rear end faces of the liquid crystal panel 2 placed on the placement member 21 to align the liquid crystal panel 2 in the front and rear direction. In addition, the attachment position of the front-back direction of the roller 25 with respect to the roller holding members 29 and 30 can be adjusted. The roller holding members 29 and 30 are formed with long holes for adjusting the mounting position of the roller 25 in the front-rear direction.

  The holding unit 6 includes a holding member 33 formed in an elongated, substantially rectangular flat plate shape, a holding mechanism 34 that is attached to one end side (one end side in the longitudinal direction) of the holding member 33 and holds the liquid crystal panel 2, and a holding member And a holding mechanism 35 that holds the liquid crystal panel 2 and is attached to the other end of 33 (the other end in the longitudinal direction). That is, the holding part 6 has a holding mechanism 34 on one end side and a holding mechanism 35 on the other end side. In this embodiment, the holding mechanism 34 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 this 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 elevating mechanism 8 is accommodated in the housing 13. The lifting mechanism 8 is disposed between the first placement unit 3 and the second placement unit 4 in the left-right direction. As shown in FIG. 2, the lifting mechanism 8 includes a motor 36, a screw member 37 connected to the output shaft of the motor 36, and a nut member 38 that engages with the screw member 37 and is fixed to the holding unit 6. I have. The elevating mechanism 8 includes a guide shaft 39 and a guide bush 40 that guide the holding unit 6 in the vertical direction. The lifting mechanism 8 of this embodiment includes 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 the fixed plate 42. The four guide shafts 39 are arranged in a square shape when viewed from above and below. The four guide bushes 40 are fixed to the central portion of the holding member 33. That is, the four guide bushes 40 are fixed to the central portion of the holding portion 6. The guide shaft 39 is inserted into the guide bush 40.

  The motor 36 is a servo motor. The motor 36 is disposed so that the output shaft of the motor 36 protrudes downward. The motor 36 is disposed above the fixed plate 41 and is fixed to the fixed plate 41 via the bracket 43. The screw member 37 is attached to the output shaft of the motor 36 via the 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 at the center position of the holding member 33. That is, the nut member 38 is fixed at the center position of the holding portion 6.

  The rotation mechanism 7 is accommodated in the housing 13. Further, the rotation mechanism 7 is disposed between the first placement unit 3 and the second placement unit 4 in the left-right direction. The rotation mechanism 7 is a rotary actuator that uses a motor 47 as a drive source. The motor 47 is a servo motor. A fixed plate 42 is fixed to the upper end surface of the rotation mechanism 7, and the rotation mechanism 7 rotates the holding unit 6 together with the elevating mechanism 8 and the fixed plates 41 and 42. When viewed in the vertical direction, the rotation center of the rotation mechanism 7 and the center position of the holding member 33 coincide with each other. That is, the rotation mechanism 7 rotates the holding unit 6 around the center position of the holding unit 6 as a rotation center. In this embodiment, the rotation center of the rotation mechanism 7 and the rotation center of the motor 36 coincide with each other when viewed from the vertical direction. However, the rotation center of the rotation mechanism 7 and the rotation center of the motor 36 do not have to coincide with each other when viewed from the vertical direction.

  When the holding unit 6 rotates, the holding unit 6 is raised to a predetermined position. When the liquid crystal panel 2 held by the holding mechanisms 34 and 35 is placed on the first placement part 3 and the second placement part 4, and placed on the first placement part 3 and the second placement part 4. When the holding mechanisms 34 and 35 hold the placed liquid crystal panel 2, the holding unit 6 is lowered from the predetermined position and then raised again to the predetermined position.

  The casing 13 is formed in a rectangular parallelepiped box shape. The left side surface portion 13 a that constitutes the left side surface of the housing 13 is disposed immediately on the right side of the second mounting portion 4, and is disposed on the left side of the rotation mechanism 7 and the lifting mechanism 8. The left side surface portion 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. Further, as shown in FIG. 4, the opening 13b is formed in a rectangular shape elongated in the front-rear direction.

  The shutter 14 is disposed on the left side of the left side surface portion 13a. The shutter 14 is between a closed position 14A (a position indicated by a two-dot chain line in FIG. 4) that closes the opening 13b and an open position 14B (a position indicated by a solid line in FIGS. 2 and 4) that opens the opening 13b. Moving. 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. An air cylinder 48 that moves the shutter 14 up and down is connected to the shutter 14.

  As shown in FIG. 4, a guide rail 49 for guiding the shutter 14 in the vertical direction is fixed to the left surface of the left side surface portion 13a. A guide block 50 that engages with the guide rail 49 is fixed to the right surface of the shutter 14. Further, on the left surface of the left side surface portion 13a, a shock absorber 51 for reducing the shock when the shutter 14 stopped at the closed position 14A is stopped, and a shock when the shutter 14 stopped at the open position 14B is stopped. The shock absorber 52 is attached. The shutter 14 is formed with a contact portion 14 a that contacts the shock absorber 51 and a contact portion 14 b that contacts the shock absorber 52.

  As described above, the rotation mechanism 7 rotates the holding unit 6. In this embodiment, the rotation mechanism 7 includes a first replacement position 6A (FIG. 2) in which 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. 6A and the position shown in FIG. 6A), the holding unit 6 is rotated by 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 the first. A second replacement position 6B (position shown in FIG. 6 (B)) arranged on the upper side of the placing section 3 and a standby position 6C (position where the holding section 6 is arranged at a position where the shutter 14 can move to the closed position 14A). The holding part 6 is rotated to the position shown in FIG.

  When the holding portion 6 is in the first replacement position 6A, the holding mechanism 34 is arranged above the two through holes 18b, and the holding mechanism 35 is arranged above the two placement members 21. When the holding portion 6 is in the second replacement position 6B, the holding mechanism 34 is arranged above the two placement members 21 and the holding mechanism 35 is arranged above the two through holes 18b. The standby position 6C of the present embodiment 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 holding unit 6 at the standby position 6 </ b> C is disposed inside the housing 13.

(Operation of inspection device)
In the inspection apparatus 1, the two liquid crystal panels 2 placed on the first placement unit 3 in a state where the holding unit 6 is disposed at the standby position 6 </ b> C and the shutter 14 is disposed at the closed position 14 </ b> A. A lighting test is performed. During the lighting inspection of the liquid crystal panel 2, the inside of the housing 13 is a dark room, and the light is irradiated from the backlight 10 onto the liquid crystal panel 2 placed on the placement jig 18. Further, the holding mechanisms 34 and 35 do not hold the liquid crystal panel 2 during the lighting inspection of the liquid crystal panel 2.

  When the lighting inspection of the liquid crystal panel 2 is completed, the shutter 14 at the closed position 14A moves to the open position 14B. In addition, the holding unit 6 at the standby position 6C rotates 90 ° and moves to one of the first replacement position 6A and the second replacement position 6B. For example, the holding unit 6 at the standby position 6C moves to the first replacement position 6A. In this state, the holding portion 6 is lowered, the holding mechanism 34 holds the liquid crystal panel 2 after the inspection placed on the first placement portion 3, and the holding mechanism 35 is placed on the second placement portion 4. After holding the placed liquid crystal panel 2 before the inspection, the holding unit 6 rises.

  Thereafter, the holding unit 6 in the first replacement position 6A rotates 180 ° and moves to the second replacement position 6B. In this state, the holding unit 6 is lowered, the holding mechanism 35 places the liquid crystal panel 2 before the inspection on the first placement unit 3, and the holding mechanism 34 places the liquid crystal after the inspection on the second placement unit 4. After the panel 2 is placed, the holding unit 6 is raised. Thereafter, the holding unit 6 at the second replacement position 6B rotates 90 ° and moves to the standby position 6C. When the holding unit 6 moves to the standby position 6C, the shutter 14 moves from the open position 14B to the closed position 14A. When the shutter 14 moves to the closed position 14A, the inside of the housing 13 becomes a dark room, and the next two liquid crystal panels 2 are inspected for lighting.

(Main effects of this form)
As described above, in this embodiment, the inspection apparatus 1 includes the holding unit 6 having the holding mechanism 34 on one end side and the holding mechanism 35 on the other end side, and the holding unit 6 having the vertical direction as the axial direction of rotation. And a rotation mechanism 7 that rotates the holding portion 6 with the center position of the rotation center as a rotation center. Further, in this embodiment, the rotation mechanism 7 includes the first replacement position 6 </ b> A in which the holding mechanism 34 is disposed on the upper side of the first placement unit 3 and the holding mechanism 35 is disposed on the upper side of the second placement unit 4. The holding unit 6 is rotated 180 ° from the first replacement position 6A so that the holding mechanism 34 is arranged on the upper side of the second mounting unit 4 and the holding mechanism 35 is arranged on the upper side of the first mounting unit 3. 2 The holding part 6 is rotated to the replacement position 6B.

  Therefore, in this embodiment, for example, by rotating the holding unit 6 from the first replacement position 6A to the second replacement position 6B, the liquid crystal panel 2 mounted on the first mounting unit 3 is replaced as described above. It becomes possible. That is, in this embodiment, the liquid crystal panel 2 can be replaced by using one holding unit 6 and one rotating mechanism 7. Therefore, in this embodiment, compared with the case where the mechanism for loading the liquid crystal panel 2 into the first placement unit 3 and the mechanism for unloading the liquid crystal panel 2 from the first placement unit 3 are provided separately, The configuration of the apparatus 1 can be simplified.

  In this 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 part 3 can be replaced. Therefore, the replacement time of the liquid crystal panel 2 can be shortened. Further, in this embodiment, since the holding unit 6 is rotated to the standby position 6C where the holding unit 6 is disposed at a position where the shutter 14 can move to the closed position 14A, the opening 14b is opened by the shutter 14 at the time of lighting inspection. It is possible to block the inside of the housing 13 into a dark room.

  In this embodiment, the standby position 6C is a position where the holding unit 6 has rotated 90 ° from the first replacement position 6A and the second replacement position 6B. Therefore, in this embodiment, even when the distance between the rotation center of the holding unit 6 and the opening 13b (distance in the left-right direction) is short, contact between the holding unit 6 and the shutter 14 is prevented when the shutter 14 is closed. Thus, the opening 13b can be closed by the shutter 14. Therefore, in this embodiment, the inspection apparatus 1 can be reduced in size. 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 liquid crystal placed on the placement unit 3 at the time of lighting inspection of the liquid crystal panel 2 It is possible to reliably retract the entire holding unit 6 from between the panel 2 and the camera 11. Therefore, in this embodiment, the entire image of the liquid crystal panel 2 can be reliably transferred to the camera 11.

  In this embodiment, the inspection apparatus 1 includes an elevating mechanism 8 that elevates the holding unit 6. Therefore, in this embodiment, instead of the lifting mechanism 8, a lifting mechanism that lifts and lowers the first mounting part 3 in order to place the liquid crystal panel 2 on the first mounting part 3, and a liquid crystal on the second mounting part 4. The configuration of the inspection apparatus 1 can be simplified as compared with a case where an elevating mechanism for elevating and lowering the second placement portion 4 is provided for placing the panel 2.

  In this embodiment, the mounting jig 18 is mounted by the positioning pin 20 protruding upward from the mounting member 19 and the insertion hole 18a of the mounting jig 18 into which the positioning pin 20 is inserted. 19 is positioned in a horizontal direction. Therefore, in this embodiment, when the placement jig 18 is lifted, the placement jig 18 can be removed from the placement member 19. Therefore, in this embodiment, the replacement work when replacing the mounting jig 18 according to the size, shape, etc. of the liquid crystal panel 2 is facilitated.

(Other embodiments)
The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited to this, and various modifications can be made without departing from the scope of the present invention.

  In the above-described form, the standby position 6C may be a position where the holding unit 6 is rotated by an angle less than 90 ° from the first replacement position 6A, or the angle at which the holding unit 6 exceeds 90 ° from the first replacement position 6A. It may be a rotated position. In the embodiment described above, the holding unit 6 at the standby position 6 </ b> C 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 embodiment described above, the inspection apparatus 1 may include an elevating mechanism that elevates and lowers the first placement unit 3 and an elevating mechanism that elevates and lowers the second placement unit 4 instead of the elevating mechanism 8. In the above-described form, the shutter 14 may slide in the front-rear direction between the closed position that closes the opening 13b and the open position that opens the opening 13b, and rotates in the up-down direction or the front-rear direction. It may be rotated as the axial direction.

  In the embodiment described above, the number of the liquid crystal panels 2 placed on the first placement unit 3 and the second placement unit 4 may be one. In this case, the holding mechanisms 34 and 35 suck and hold one liquid crystal panel 2. Further, the number of liquid crystal panels 2 placed on the first placement unit 3 and the second placement unit 4 may be three or more. In this case, the holding mechanisms 34 and 35 suck 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 an inspection object other than the liquid crystal panel 2 may be performed in the dark room inside the housing 13. good.

1 Inspection device 2 Liquid crystal panel (inspection object)
DESCRIPTION OF SYMBOLS 3 1st mounting part 4 2nd mounting part 6 Holding part 6A 1st replacement position 6B 2nd replacement position 6C Standby position 7 Rotating mechanism 8 Lifting mechanism 13 Housing | casing 13b Opening part 14 Shutter 14A Closed position 14B Open position 18 Mounted Placement jig 18a Insertion hole 19 Placement member 20 Positioning pin 34 Holding mechanism (first holding mechanism)
35 Holding mechanism (second holding mechanism)

Claims (6)

In an inspection device for lighting inspection of inspection objects,
A holding part 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 around the center position of the rotation center, a first placement portion on which the inspection object is placed during a lighting inspection, and the inspection object before and after the lighting inspection. A second placement portion to be placed; a housing in which a portion of the holding portion passes when the holding portion rotates; and the first placement portion is accommodated; and the opening portion A shutter that moves between a closed position that closes and an open position that opens the opening,
The second placement portion is disposed outside the housing,
The rotating mechanism includes a first replacement position in which the first holding mechanism is disposed above the first placement portion and the second holding mechanism is disposed above the second placement portion; The holding portion is rotated 180 ° from the first replacement position so that the first holding mechanism is arranged above the second placement portion and the second holding mechanism is arranged above the first placement portion. An inspection apparatus, wherein the holding unit is rotated to a second replacement position and a standby position where the holding unit is disposed at a position where the shutter can move to the closed position. In a state where the holding unit is disposed at the standby position and the shutter is disposed at the closed position, a lighting inspection of the inspection object placed on the first placement unit is performed,
When the lighting inspection of the inspection object is completed, the shutter in the closed position moves to the open position, and the holding unit in the standby position moves between the first replacement position and the second replacement position. 2. The inspection apparatus according to claim 1, wherein the inspection apparatus moves to one of the first replacement position and the second replacement position and then moves to the standby position.   The inspection apparatus according to claim 1, wherein the standby position is a position obtained by rotating the holding unit by 90 ° from the first replacement position and the second replacement position.   The inspection apparatus according to claim 1, wherein the holding unit in the standby position is disposed inside the housing.   The inspection apparatus according to claim 1, further comprising an elevating mechanism that elevates and lowers the holding unit. The first placement portion includes a placement jig on which the inspection object is placed, a placement member on which the placement jig is placed, and an upward protrusion from the placement member. And a plurality of positioning pins
The mounting jig has an insertion hole into which the positioning pin is inserted,
The inspection apparatus according to claim 1, wherein the placement jig is positioned in a horizontal direction with respect to the placement member by the positioning pin and the insertion hole.

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