KR101643386B1 - substrate loading and unloading apparatus for auto optical inspection device - Google Patents

Abstract

Disclosed is a substrate supplying and withdrawing device for automatic optical inspection equipment capable of supplying substrates to the inspection equipment to inspect the substrates received in baskets and collecting the substrates which the inspection thereof is completed back in the baskets. According to the present invention, a basket supply-withdrawal unit capable of supplying and withdrawing the baskets to stably and accurately insert the substrates at a preset location and to preset an interval between the substrates, which are received in the baskets by a sheet, narrower at the same time is formed in a single line. Accordingly, a supply unit and a withdrawal unit can be integrally operated by receiving the substrates which the inspection is completed back in the baskets. In addition, an installation space of the device can be reduced by more than half. Moreover, the number of the baskets in operation can be reduced by more than half.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a substrate loading and unloading apparatus,

The present invention relates to an apparatus and a method for supplying and removing substrates to and from an automatic optical inspection facility, and more particularly, to an automatic optical inspection apparatus for supplying a substrate to an inspection apparatus such that an inspection of a substrate accommodated in the basket is performed, And to an apparatus for supplying and removing substrates for inspection sites.

In general, since a circuit is designed on a board having a limited size, such as a printed circuit board (hereinafter, referred to as a PCB), which is flexible, small in size, and highly integrated in a circuit, And the line width is formed to be very thin.

Therefore, it is necessary to confirm the abnormality of the pattern formed on the PCB before mounting the component element on the PCB. Therefore, after checking the abnormality of all the PCBs manufactured by the PCB manufacturer, .

In order to check whether there is an abnormality in the pattern formed on the PCB as described above, it is necessary to input it into the optical inspection equipment (AOI: Automated Optical Inspection) which optically tests the PCB. Since the number of PCBs to be inspected is very large, There is a problem that the efficiency of the operation is greatly reduced.

In addition, since PCBs used in small-sized precision electronic devices are very thin with a thickness of 0.06 to 0.1 mm, there is a high risk of being broken while moving for testing.

To solve these problems, the developed device is an AOI automatic feeder / unloader.

Korean Patent No. 0868486 'Rotating device for receiving PCB'

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a method of inserting a substrate stably and accurately at a specified position of a basket, And a basket supply / take-out unit for feeding and discharging the basket is formed in one line, and the substrate on which inspection is completed is re-housed in the taken-out position, so that the combined operation of the supply unit and the take- And an object of the present invention is to provide an automatic optical inspection station cost substrate supply and dispensing apparatus which can reduce the area by more than half and reduce the operation amount of the basket by more than half.

In order to achieve the above-mentioned object, the present invention provides a means for solving the above-mentioned problems, comprising: a first conveying means for horizontally conveying a plurality of substrates erected vertically, A first holding means for holding a basket to be conveyed while moving up and down on a first conveying means; a gripping means for gripping both upper ends of the board housed in the basket; A second fixing means fixed to the upper and lower ends of both sides of the substrate clamped by the holding means, and a second fixing means for holding the substrate horizontally by rotating the second fixing means in the forward and backward directions, And a second conveying means for conveying the second fixing means in the left-right direction are formed, and a second rotating means for rotating the second rotating means in the horizontal direction A substrate aligning portion for forming a pusher for pressing and aligning the floated substrate in the front and rear left and right directions; and a substrate aligning portion for aligning both sides of the aligned substrate on the table A substrate feeding part for forming a first conveying device for conveying the first suction device to the inspection table of the inspection equipment and a second conveying device for conveying the first suction device to the inspection table of the inspection equipment; And a substrate take-out unit that forms a fourth transfer means for transferring the second sucking means to the table of the substrate aligning portion, wherein the substrate rotating portion is mounted on the table by the second securing means Wherein the first and second rotating means are used to hold the substrate in a vertical position, A pair of upper and lower slits spaced apart from each other at upper ends of both sides of the basket are arranged opposite to each other, And the inspection substrate is inserted into the basket while guiding both side ends of the substrate through guide means of the optical inspection unit.

According to the present invention as described above, a substrate can be stably and accurately inserted into a specified position of a basket, and a basket and a basket can be provided with a purpose of being able to more densely set a gap between substrates to which a single substrate is inserted, Out port is formed in one line, and the substrate on which the inspection is completed is re-housed in the taken-out position, so that the combined operation of the supply unit and the take-out unit can be performed, the installation area of the apparatus can be reduced by half or more, The number of operation of the apparatus can be reduced by more than half.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a substrate supplying and taking-out apparatus for an automatic optical inspection facility according to an embodiment of the present invention;
Fig. 2 is a perspective view of the substrate lifting unit shown in Fig. 1, showing a state in which the substrate accommodated in the basket is taken out;
FIG. 3 is a perspective view of the substrate rotating unit in FIG. 2,
FIG. 4 is a perspective view of the substrate rotating unit shown in FIG. 3,
FIG. 5 is a perspective view of the substrate rotating unit shown in FIG. 4,
FIG. 6 is a perspective view showing a state in which the substrate supply unit supplies the substrate of the substrate alignment unit to the inspection table of the inspection equipment,
FIG. 7 is a perspective view showing a state in which a substrate having been inspected is taken out to a substrate aligning portion,
8 is a sectional view showing a state in which a basket is supplied through a basket supply /
Fig. 9 is a sectional view of the basket shown in Fig. 8,
FIG. 10 is a sectional view showing the basket lifted up by the basket lifting means in FIG. 9,
11 is a cross-sectional view showing a state in which the substrate aligning portion is raised and lowered,
12 is a cross-sectional view showing a state where a substrate mounted on the substrate alignment unit is floated.

The apparatus for supplying and taking out substrates for an optical inspection facility according to the present invention supplies a substrate to an inspection equipment so as to inspect the substrate and simultaneously collects the inspected substrates. It looked.

1 is a perspective view of an apparatus for supplying and removing a substrate for an automatic optical inspection facility according to an embodiment of the present invention.

The present invention relates to a substrate supplying and taking out apparatus for loading or unloading substrates 10 and 10 'on a testing table 30 of an automatic optical inspection apparatus, the apparatus including a basket supplying and removing unit 100, a substrate elevating unit 200, A substrate rotating unit 300, a substrate aligning unit 400, a substrate supplying unit 500, a substrate takeout unit 600, and a guiding unit 700.

First, the basket supply / take-out unit 100 includes a first conveying means 110 such as a conveyor that horizontally conveys a plurality of boards 10 in a vertical direction, A first fixing means 120 for fixing the transporting basket 20 to the upper portion of the first transporting means 110 so as to prevent the transporting basket 20 from moving is formed on the basket 20 in which the substrate 10 to be inspected is stored. The substrate 20 is supplied to the substrate lifting part 200 and the basket 20 is held at the lower part of the substrate lifting part 200 during the inspection of the substrate 10, 20, the basket 20 is taken out to the outside.

The substrate lifting unit 200 includes gripping means 210 for grasping the upper ends of both sides of the inspected substrate 10 'to be accommodated in the substrate 10 and the basket 20 accommodated in the basket 20, Elevating means 220 for transferring the means 210 to the upper and / or lower portion is formed, and the substrate 10 is taken out from the basket 20.

The substrate lifting unit 200 clamps both ends of the substrate 10 'which is vertically installed on the substrate rotating unit 300 by the gripping unit 210 and uses the lifting unit 220 So that the clamped substrate 10 'can be re-supplied to the basket 20.

The substrate rotating unit 300 includes a second fixing unit 310 fixed to upper and lower ends of both sides of the substrate 10 clamped by the holding unit 210 and a second fixing unit 310 rotating the second fixing unit 310 in the forward and backward directions A first rotating means 320 for horizontally laying the substrate 10 in the vertical standing state and a second conveying means 330 for conveying the second fixing means 310 in the lateral direction, The substrate 10 of the substrate lifting unit 200 is received and laid down in a horizontal direction and transferred to the substrate aligning unit 400.

The substrate rotating unit 300 fixes both upper and lower ends of the inspected substrate 10 'mounted on the table 410 with the second fixing unit 310 and transfers the substrate to the substrate elevating unit 200 The substrate 10 'is vertically raised by using the first rotating means 320 and is supplied to the substrate lifting unit 200.

The substrate alignment unit 400 includes a table 410 on which the substrate 10 laid in the horizontal direction is mounted, a lifting means 420 for floating the substrate 10, Thereby forming a pusher 430 for pressing and aligning in the lateral direction.

The substrate aligning unit 400 may be configured to align the substrates 10 and 10 'mounted on the table 410 through the substrate rotating unit 300 or a substrate take-out unit 600 described later by using the lifting unit 420 And the substrates 10 and 10 'floating in the non-contact state with the table 410 are pressed and aligned in the forward, backward, leftward, and rightward directions using the pusher 430.

12, the pressing of the pusher 430 is performed in a state in which the substrate 10, 10 'is lifted so as not to be in contact with the table 410, so that the substrate 10, 10' Since the substrates 10 and 10 'are pressed in the front, rear, left, and right directions, alignment of the substrates 10 and 10' can be performed in all directions.

The substrate supply unit 500 includes a first adsorption unit 510 for adsorbing at least two sides of the substrate 10 aligned on the table 410 and a second adsorption unit 510 for inspecting the first adsorption unit 510 30) are formed on the second transfer means (520).

The substrate take-out unit 600 includes a second adsorption unit 610 formed in parallel with the substrate supply unit 500 and configured to adsorb at least two sides of the substrate 10 ' And fourth transfer means 620 for transferring the second sucking means 610 to the table 410 of the substrate aligning unit 400 are formed.

The substrate supplying part 500 and the substrate taking-out part 600 may include a vacuum module for attracting the substrates 10 and 10 'and may include elevating means for elevating the substrates 10 and 10' .

According to an embodiment of the present invention, slits 710 formed to be spaced from top to bottom at both upper ends of the basket 20 are guided by a pair of guide means 700, 'Is inserted into the basket 20 while guiding both ends of the substrate 10'.

The guide means 700 may be inserted into the basket 20 and only guide the substrate 10 '. The substrate 10 can be inserted into the groove of the basket 20 while guiding the substrate 10 in a straight line by the action of the guide means 700 so that the substrate 10 can be stably and accurately inserted into the predetermined position of the basket 20 .

Since the upper portion of the slit 710 is formed to be wide and the lower portion is narrowly formed, the substrate 10 can easily enter and the introduced substrate 10 can be accurately guided to the groove portion of the basket 20.

Hereinafter, the process of loading and unloading the substrate using the apparatus configured as described above will be described in the order of the following drawings.

First, as shown in FIG. 1, a basket 20 on which a substrate 10 to be inspected is mounted is mounted on a first conveying means 110 and transferred to a lower portion of the substrate elevating portion 200. At this time, the basket 20 is fixed to the lower portion of the substrate lifting unit 200 by the action of the first fixing means 120.

Subsequently, as shown in FIG. 2, the substrate lifting unit 200 grasps the upper ends of both sides of the substrate 10 of the basket 20 and takes it out to the upper side. Subsequently, as shown in FIG. 3, the substrate rotating unit 300 grasps both upper and lower ends of the substrate 10 and then rotates in the forward and backward directions as shown in FIG. 4 to lay the substrate 10 standing in a horizontal direction, To the table 410 of the server 400. 5, the substrate 10 is moved in the forward, backward, left and right directions in the floating state to align the substrate 10, and the substrate supply unit 500 is lowered and aligned with the table 410 as shown in FIG. And then the substrate 10 is supplied to the inspection table 30 of the inspection equipment.

Subsequently, the substrate 10 'inspected in the inspection equipment is transferred to the table 410 of the substrate aligning unit 400 through the substrate take-out unit 600 as shown in FIG. 7, and the substrate rotating unit 300 is moved to the table 410 The upper and lower ends of the substrate 10 'mounted on the substrate 10' are fixed, and then the substrate 10 'is transferred to the substrate lifting unit 200 and is vertically erected. Substrate elevating unit 200 then clamps both upper ends of substrate 10 'that are erected in a vertical position and re-supplies substrate 10' to basket 20 under the guidance of guiding means 700.

8 is a cross-sectional view showing a state in which a basket is fed through a basket feed-out portion, FIG. 9 is a cross-sectional view showing a state in which a basket is fixed to a stopper in FIG. 8, and FIG. 10 is a cross- Is a cross-sectional view showing the basket in an elevated state.

According to an embodiment of the present invention, the first fixing means 120 of the basket supply-take-out portion 100 controls the movement of the basket 20 while moving up and down to the upper portion of the first transfer means 110 A stopper 121 and a pedestal 122 for supporting the front and bottom surfaces of the basket 20 and the rear surface of the basket 20 are formed at the upper end of the basket 120. Between the first transporting means 110 and the first transporting means 110, A basket lifting and lowering means 123 for lifting and lowering the basket 20 while raising and lowering the basket 20 in a non-contact manner, a clamping means 124 for clamping both side surfaces of the basket 20, and a lifting means 123 and a clamping means 124, and pitch transfer means 125 for advancing or retracting in units of pitch so that the substrate 10 of the basket 20 is taken out for inspection and inserted into place when the inspection is completed.

8, when the basket 20 mounted on the first transporting unit 110 enters the lower portion of the substrate lifting unit 200, the stopper 121 rises and moves the basket 20 as shown in FIG. Stop. 10, the elevation means 123 is lifted up, the pedestal 122 lifts the basket 20, and the basket 20 is moved forward or backward by a pitch by the pitch transfer means 125, Repeat backward.

For example, when the n-th substrate 10 is taken out by the substrate lifting unit 200, the pitch conveying unit 125 may pitch the n-1 th substrate 10 ' , And advances by twice the unit distance (pitch) so that the (n + 1) th substrate 10 is taken out.

That is, when the first substrate 10 of the basket 20 is taken out, the pitch conveying means 125 advances by a unit distance so that the second substrate is taken out. Thereafter, when the second substrate is taken out, the pitch conveying means 125 moves backward by a unit distance so that the inspected substrate 10 'is reinserted. Thereafter, the pitch transfer means 125 advances by a distance equal to twice the unit distance so that the third substrate is taken out, and moves back by a unit distance so that the second substrate after the inspection is reinserted. When the last substrate is reinserted after the inspection is completed, the lifting means 123 descends and the basket 20 is mounted on the first conveying means 110. When the stopper 121 descends, (110).

According to an embodiment of the present invention, the substrate elevating unit 200 includes a substrate 10 clamped to the holding unit 210 along the alignment direction of the substrate 10 housed in the basket 20, And a second rotating unit 230 rotating the inspected substrate 10 'from the substrate rotating unit 300 to an initial position by -180 degrees.

That is, depending on whether the inspection surface of the substrate 10 housed in the basket 20 faces forward or backward, the substrate lifting unit 200 moves the substrate 10 taken out of the basket 20 by 180 degrees . In addition, when the taken-out substrate 10 is rotated in the reverse direction, the substrate 10 'that has been inspected can be fed back to the basket 20 after rotating the substrate 10' in the basket 20 by -180 degrees.

11 is a cross-sectional view of the substrate aligning portion, and FIG. 12 is a cross-sectional view showing the substrate mounted on the table in a floating state in FIG.

According to an embodiment of the present invention, the substrate aligning part 400 may be arranged to protrude above the table 410 in accordance with the arrangement direction of the substrate 10 supplied to the inspection table 30, And a third rotating means 440 for rotating the inspected substrate 10 'mounted on the table 410 through the substrate take-out unit 600 by 90 degrees to one side and rotating the inspected substrate 10' to the initial position by -90 degrees.

11, depending on whether the substrate 10 is mounted on the inspection table 30 of the inspection equipment, the third rotation means 440 may be mounted on the substrate 10 ) Can be rotated by 90 degrees. In addition, the substrate 10 'which has been inspected may be rotated by -90 degrees and then transferred to the substrate rotating unit 300.

According to an embodiment of the present invention, the second fixing unit 310 of the substrate rotating unit 300 is provided as a holding unit for gripping both upper and lower ends of the substrate 10, An insertion groove 450 formed to be recessed inwardly is formed in the table 410 of the second fixing unit 310 so that the second fixing unit 310 is received. Therefore, it is possible to easily grasp the substrate 10 'in a state where it is mounted so as to be in contact with the table 410 by inserting the second fixing means 310 into the insertion groove 450 formed in the table 410, Can easily be mounted on the table 410 so that the operation of mounting the substrate 10 on the table 410 and the operation of holding the substrate 10 'of the table 410 can be facilitated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention.

Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

10, 10 ': substrate 20: basket
100: basket feed-out portion 110: first feeding means
120: first fixing means 121: stopper
122: pedestal 123: basket lifting means
124: clamping means 125: pitch transfer means
200: substrate elevating part 210: holding means
220: elevating means 230: second rotating means
300: substrate rotating part 310: second fixing means
320: first rotating means 330: second conveying means
400: substrate alignment unit 410: table
420: lifting means 430: pusher
440: third rotating means 450: insertion groove
500: substrate supply unit 510: first adsorption means
520: Third conveying means 600: Substrate take-
610: second suction means 620: fourth transfer means

Claims (7)

A first conveying means for conveying a plurality of substrates erected in a vertical direction and carrying therein the stored basket successively to transport them in the anteroposterior direction and a basket securing means for securing a basket to be conveyed while moving up and down above the first conveying means, - take-out part;
A grasping means for grasping upper ends on both sides of the substrate housed in the basket; a substrate elevating portion having elevating means for grasping the grasping means up and / or down;
Second fixing means fixed to upper and lower ends of both sides of the substrate clamped by the holding means, first rotating means for rotating the second fixing means in the forward and backward directions to lay the substrate in the horizontal direction, A second rotating means for rotating the substrate rotating means;
A table on which the horizontally laid substrate is mounted; a lifting means for floating the substrate; a substrate aligning unit for forming a pusher for pressing and aligning the floating substrate in the longitudinal and lateral directions;
A first suction unit for sucking at least two sides of the aligned substrate on the table and a third transfer unit for transferring the first suction unit to the inspection unit of the inspection equipment;
A second sucking means for sucking at least two sides of the substrate on which the inspection is completed in the inspection equipment and a fourth transporting means for transporting the second sucking means to the table of the substrate sorting unit,
The substrate rotating unit may be configured such that the upper and lower ends of the substrate mounted on the table are fixed by the second fixing unit, the substrate is vertically set using the first rotating unit,
Wherein the substrate lifting unit clamps both upper ends of the vertically standing substrate by the holding means and supplies the clamped substrate to the basket by using the elevating means,
Wherein the basket is inserted into the basket while guiding both side ends of the substrate through a pair of guide means disposed opposite to each other such that the slits formed so as to narrow the interval from the upper portion to the lower portion on both upper ends of the basket, Optical inspection station cost board supply and takeout device.
The method according to claim 1,
The first fixing means of the basket feeding-taking-out portion includes a stopper for controlling the movement of the basket while protruding and retreating to the upper portion of the first feeding means, and a pedestal for supporting the front, bottom, and rear central portions of the basket, A basket lifting and lowering means for lifting and lowering the basket between the first feeding means and the first feeding means, a clamping means for clamping both sides of the basket, and a lifting means for moving the lifting means and the clamping means forward Wherein the basket of the basket is taken out for inspection and then inserted into the recess when the inspection is completed.
The method according to claim 1,
Wherein the substrate elevating portion rotates the substrate clamped by the holding means 180 degrees to one side in accordance with the alignment direction of the substrate accommodated in the basket and rotates the inspected substrate transferred from the substrate rotating portion to a second rotation And an automatic optical inspection station cost substrate feed and take-out device.
The method according to claim 1,
The substrate aligning portion rotates the substrate 90 degrees to one side while moving up and down to the top of the table in accordance with the arrangement direction of the substrate supplied to the inspection table, and inspects the inspected substrate mounted on the table through the substrate take- And a third rotating means for rotating the first optical system.
The method according to claim 1,
Wherein the substrate alignment unit floats the inspected substrate mounted on the table through the substrate take-out unit using the lifting means and presses the substrates in the front, rear, left, and right directions using the pusher, And a takeout device.
The method according to claim 1,
Wherein the second fixing means of the substrate rotating portion is provided with gripping means for gripping both upper and lower ends of the substrate, and the table of the substrate aligning portion is provided with an automatic optical Inspection station cost Substrate supply and extraction device.
The method according to claim 1,
When the n-th substrate is taken out by the substrate lifting unit, the basket supply / take-out unit moves backward by a unit distance so as to insert the (n-1) pitch of the substrate to be inspected is repeated twice.

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