KR20100100198A - Vision inspection apparatus - Google Patents

Abstract

PURPOSE: A vision inspection apparatus is provided to simplify the structure of the apparatus by fixing two or more trays, on which a plurality of electronic components is loaded, in order to perform a vision inspection process. CONSTITUTION: Electronic components(10) are loaded on two or more trays(20). A vision inspection unit(300) performs a vision inspection process with respect to the electronic components on the trays. Based on the inspection result, a dumping unit loads good electronic components on at least one tray and loads bad electronic components on the other tray. The vision inspection unit and the dumping unit are fixed to at least one shaft and are separately driven.

Description

Vision inspection apparatus

The present invention relates to a vision inspection apparatus, and more particularly, to a vision inspection apparatus for inspecting the appearance of electronic components loaded on a tray.

Electronic components such as semiconductor packages undergo various tests such as electrical tests and external inspections during the manufacturing process or before shipping to improve yield and increase reliability of the product.

Semiconductor packages are manufactured through numerous processes such as processing on wafers, cutting processes, packaging processes, etc., but if the subsequent processes are performed in spite of defects, there is a problem of increasing the overall manufacturing cost by performing unnecessary processes. Such a problem can be prevented by performing the above test before the main process and selecting only good electronic components to perform the subsequent process.

In addition, most electronic parts have been tested before being shipped to the market to ensure that only good products are shipped, thereby improving reliability of the product.

In the conventional vision inspection apparatus, the tray on which the electronic component is loaded is moved up and down along the guide rail, and the camera is moved left and right to inspect the electronic component loaded on the tray. As described above, since the tray on which the electronic component is loaded moves and performs inspection, a defect occurs in measurement as the position of the electronic component loaded in the tray is changed due to the tolerance of the tray receiving groove. Detailed description thereof is as follows.

1 is a plan view showing an example of a conventional vision inspection apparatus.

On the other hand, the conventional vision inspection device for inspecting the appearance of the electronic component test as described above, as shown in Figure 1, guide the tray 5, the electronic component is loaded by a tray transfer device (not shown) Classification of the tray loading apparatus 1 for loading the tray 5 along the rail 1a, the camera 2 for vision inspection of the electronic component conveyed by the picker 6, and the electronic component after vision inspection In order to transfer the electronic parts, the picker 7 and the tray transfer device (not shown) for the transfer of the tray 5, the sorting unit 4, the tray 5 is automatically transferred along the guide rail 4a Etc. shall be provided.

However, the conventional vision inspection apparatus having the configuration as described above should include a tray transporting device for automatically transporting the guide rails 1a and 4a and the trays to both the tray loading device 1 and the sorting unit 4, After the vision inspection, a separate sorting device such as a sorting unit 4 including a picker 7 is separately provided, and the configuration is very complicated, and manufacturing costs are expensive.

In particular, the conventional vision inspection apparatus can use expensive vision inspection apparatus when a large number of electronic components are produced, but if the production quantity is relatively small, the use of expensive vision inspection apparatus increases the overall manufacturing cost. There is a problem of lowering profitability.

In addition, the conventional vision inspection device is not only complicated in configuration but also relatively large in size, thus occupying a relatively large space for installation.

However, in the case of electronic components, the vision inspection device is installed in a clean room to minimize the generation of dust, etc. in order to improve the reliability of the process. There is a problem of lowering the yield per square foot for parts.

Meanwhile, in the conventional vision inspection apparatus, the camera 5 is moved left and right by moving the tray 5 up and down based on the drawing of FIG. The vision test is performed by analyzing the acquired image.

As described above, when the tray 5 is moved, the electronic components are minutely moved due to the tolerance with the electronic components in the receiving groove of the tray 5, so that the positions of the electronic components are changed to cause measurement errors or There is a problem that the vision inspection, such as unable to measure the accurate image of the component to reduce the reliability of vision inspection is not performed smoothly.

An object of the present invention is to provide a vision inspection apparatus that can not only significantly reduce the area occupied by the device due to its simple structure, but also significantly reduce its manufacturing cost.

Another object of the present invention to provide a vision inspection apparatus that can significantly reduce the size and manufacturing cost of the device by minimizing the configuration for the transfer of trays and the configuration for the transfer of electronic components.

The present invention has been created to achieve the object of the present invention as described above, two or more trays on which electronic components are loaded; A vision inspection unit which performs vision inspection of electronic components loaded on the trays; A dumping part for exchanging good and defective electronic parts between the trays according to the vision inspection result, wherein the dumping part loads the good electronic parts in at least one tray and replaces the defective goods in at least one other tray. Disclosed is a vision inspection apparatus for loading an electronic component.

The vision inspection unit and the dumping unit may be driven independently or may be interlocked and fixed to at least one shaft.

The dumping unit may be configured to include a plurality of pickers that pick and place electronic components.

The present invention also includes a plurality of first tray seating parts, each of which has trays on which electronic components are loaded; At least one second tray seat on which the empty tray is seated; A vision inspection unit which performs vision inspection of electronic components loaded on the trays; Disclosed is a vision inspection apparatus comprising a dumping portion that classifies good and defective electronic components into at least one first tray seating portion and a second tray seating portion according to the vision inspection result.

The dumping part may be configured to load good electronic components in at least one tray seated on the first tray seats, and to load bad electronic parts in an empty tray seated on the second tray seat.

The dumping part may be configured to load a defective electronic component on at least one tray seated on the first tray seating portions, and to load a good quality electronic component on an empty tray seated on the second tray seating portion.

The dumping part may be configured to load a good electronic component on at least one tray seated on the first tray seats, and to load a defective electronic component on at least one other tray.

The dumping part may be configured to load a good electronic component on at least one empty tray seated on the second tray seating portion, and to load a defective electronic component on at least one other empty tray.

The vision inspection apparatus according to the present invention comprises: at least one first tray loading portion on which trays on which the electronic components are stacked are stacked; At least one second tray loading portion on which the empty tray is stacked; At least one article tray loading section on which a tray on which the electronic parts of the article are loaded is loaded; At least one defective tray loading portion on which a tray on which the defective electronic parts are stacked is loaded; The apparatus may further include a tray transfer unit configured to transfer trays between the first tray seating units, the second tray seating unit, the first tray seating unit, the second tray seating unit, the goods tray loading unit, and the defective tray loading unit.

The present invention also includes at least one first tray seating unit on which a tray loaded with electronic components for vision inspection is mounted; A first inspection unit including a first vision inspection unit for performing a first vision inspection of the electronic component loaded on the tray of the first tray seating unit; An inverting unit which receives the tray that has completed the first vision inspection and inverts the loading state of the electronic components loaded in the tray; Two or more second tray seats on which the tray inverted by the inverter is seated; A second vision inspection unit configured to perform a second vision inspection of the electronic components loaded on the tray seated on the second tray seating unit, and the second tray seat according to the first and second vision inspection results after the second vision inspection; A second inspection part including a dumping part for classifying the electronic parts loaded on the trays of the parts into good and bad parts; Disclosed is a vision inspection apparatus comprising a tray transfer unit for transferring a tray between the first inspection unit, the inversion unit, and the second inspection unit.

The inversion unit picks up the tray in an inverted state before the tray inversion, the tray transported by the tray transporting unit and the tray picked up by the tray pick-up unit, and then stacks a pair of nested trays on the tray. It may include a reverse device for reversing the loading state of the loaded electronic component.

The second tray seating part of the second inspection part receives one or more first sub tray seating parts that receive a tray from the inverting part and performs a second vision test, and from the first sub tray seating part after the second vision test. The tray may include one or more second sub tray seating units in which the electronic parts are sorted by the dumping part according to the first vision test and the second vision test.

The first sub tray seating part may be disposed between the first test part and the second sub tray seating part adjacent to the first test part.

The first tray seating portion and the second tray seating portion may be arranged in plurality in a direction perpendicular to the direction in which the first vision inspection portion and the second vision inspection portion are disposed.

The second tray seating unit may be configured to sort the electronic components by the dumping unit according to the first vision inspection and the second vision inspection after the second vision inspection.

The vision inspection apparatus according to the present invention may further include a tray loading part for supplying a tray to the first tray seating portion or the second tray seating portion or stacking the trays.

The tray loading portion includes a first tray loading portion for supplying a tray to the first tray seating portion, a second tray loading portion for loading empty trays, and a third tray loading portion for loading trays after the first and second vision inspections. It may include.

The tray loading portion may be located below the first and second tray seating portions, and the tray transfer portion may include an X-Z direction robot or an X-Y-Z direction robot.

Vision inspection apparatus according to the present invention after performing the vision inspection by the vision inspection device in a state in which two or more trays are loaded with a plurality of electronic components for vision inspection, according to the inspection result of the good and defective electronic components It is configured to sort to each tray, there is an advantage that the structure can be simplified and downsized as compared to the conventional complex vision inspection apparatus.

In particular, the present invention has the advantage of significantly reducing the manufacturing cost by miniaturizing the vision inspection device while reducing the installation space occupied by the device, thereby making it possible to utilize the entire space for the production of electronic components more efficiently.

In addition, the vision inspection apparatus according to the present invention has the advantage that can be significantly improved the total output per square sheet of electronic components by miniaturizing the size.

In addition, the vision inspection apparatus according to the present invention performs vision inspection by moving only the camera constituting the vision inspection unit without moving the electronic components, which is the object of vision inspection, to maintain the electronic components in a stable state and stably perform vision inspection. By doing so, the reliability of vision inspection can be improved and the vision inspection can be performed more smoothly.

Hereinafter, a vision inspection apparatus according to the present invention will be described in detail with reference to embodiments and the accompanying drawings.

2 is a perspective view showing a vision inspection apparatus according to a first embodiment of the present invention, Figures 3a to 3c are plan views showing the operation of the vision inspection apparatus of FIG.

Vision inspection apparatus according to a first embodiment of the present invention, as shown in Figure 2, the main body 100; Two or more trays 20 mounted on the tray seating unit 110 fixedly installed on the main body 100 and loaded with the electronic component 10 for vision inspection; A vision inspection unit 300 which performs vision inspection of the electronic component 10 loaded on the tray 20; And a dumping part 200 for exchanging good and defective electronic parts 10 between the trays 20.

First, the electronic component 10 to be subjected to vision inspection is a semiconductor package such as an IC chip such as PGA and BGA, an application chip such as DDI, a printed circuit board (PCB), and the like. can do.

The tray 20 is a configuration for loading and transporting the plurality of electronic components 10, and may have various specifications and structures according to the type of the electronic components 10, and may accommodate the electronic components 10. Receiving grooves may be formed in a horizontal and vertical arrangement.

The main body 100 is a component in which each component is installed, and may include an upper plate portion 101 that forms an upper surface and a support portion 102 that supports the upper plate portion 101, and forms a frame structure. Can be achieved.

As shown in FIG. 2, the tray seat 110 is fixedly installed on the upper plate 101 of the main body 100 and supports the tray 20 from the side so that the tray 20 can be stably seated. A plurality of guide members 111 may be installed. At this time, the tray seat 110 may be manually replaced by another tray 20 by the operator after the vision inspection.

The vision inspection unit 300 is a device for performing a vision inspection of the electronic component 10, such as obtaining an image of the appearance, such as the top, bottom surface of the electronic component 10 to be inspected, and analyzes the acquired image to check for defects. As an image acquisition apparatus (not shown), such as a camera, and an image analysis device (not shown) may be configured.

The vision inspection unit 300 is installed in the main body 100 to photograph the electronic component 10 loaded on the tray 20 while moving from the upper portion of the tray seating unit 110, as shown in Figure 2, XY It may be installed in the XY robot 320 to move in the direction.

Meanwhile, the main body 100 picks up the electronic component 10 between the trays 20 after vision inspection, transfers the electronic component 10 to another tray 20, and the good and defective electronic components 10 between the trays 20. Dumping unit 200 for exchanging them is installed.

The dumping unit 200 may be any configuration as long as it is configured to pick and place the electronic component 10, and as an example, an adsorption head (not shown) to pick up the electronic component 10 by vacuum pressure. And it may be configured to include a dumping unit 210 including a lift drive device for moving the suction head up and down.

Since the dumping part 210 must perform a pickup function from the tray 20 of the electronic component 10 and a stacking (place) function to the tray 20, two or more dumping parts 210 may be installed. In consideration of the simplification of the two it is preferable that.

The dumping part 210 composed of two pickers 211 as described above picks up the electronic component 10 from the tray 20 and moves to another tray 20 on which the electronic component 10 to be replaced is loaded. After picking up the electronic component 10 to be replaced by another picker 211, the operation of repeatedly lowering the picked up electronic component 10 is repeatedly performed.

On the other hand, the dumping unit 210 is installed in the main body 100 to move the electronic component 10 loaded on the tray 20 while moving in the upper portion of the tray seating portion 110, such as the vision inspection unit 300 2, it may be installed in the XY robot 320 to move in the XY direction.

In this case, the vision inspection unit 300 and the dumping unit 210 may be fixed to one shaft and interlocked or driven independently.

On the other hand, two or more tray seating unit 110 is preferably installed for vision inspection and " sorting of the electronic component 10 determined as defective ", and various configurations are possible depending on the operating mode thereof.

First, as shown in FIG. 3A, each of the tray seating parts 110 is mounted with a tray 20 loaded with electronic components 10 to be vision inspected, and after vision inspection, as illustrated in FIGS. 3B and 3C. As can be seen, in the trays 20 seated on the tray seating portions 110, good electronic components 10 (labeled G in FIGS. 3A-3C) and defective electronic components 10 (FIGS. 3A-3C) Only good electronic components 10 (G) are loaded in the tray 20 of some of the tray seating portions 110 so that R) can be sorted by the exchange of the electronic component 10 between the trays 20. In addition, a defective electronic component 10 (R) may be loaded into the trays 20 of the other tray seating portions 110.

For example, as illustrated in FIGS. 2 to 3C, the tray seating unit 110 is disposed in two, and the tray 20 located on the left side after vision inspection is good by replacing the dumping unit 210. Only the electronic component 10 (G) is loaded and the tray 20 located on the right side may be configured such that only the defective electronic component 10 (R) is loaded.

That is, the tray seating units 110 may include at least one first tray seating unit (left tray seating unit) on which the trays 20 on which the electronic parts 10 to be vision-loaded are mounted are mounted, and the dumping unit 210 after vision inspection. One or more second tray seats (right tray seat) for exchanging the defective electronic component 10 and the good electronic component 10 from the trays 20 seated on the other first tray seat 110 by It may be configured to include).

In this case, the positions of the first tray seat and the second tray seat are not fixed, but are set for convenience, and various configurations are possible according to an operation method.

Since the number of defective electronic components 10 is relatively small, as shown in FIG. 3B, when the tray 20 located in the tray seat 110 on the left side is filled with only good electronic components 10, the left side is left. The tray 20 located in the tray seat 110 is repeatedly replaced.

Meanwhile, as shown in FIG. 3C, when all of the defective electronic parts 10 are filled in the tray 20 located at the tray seat 110 on the right side, the operator may load the electronic parts 10 to be vision-tested. Replace with another tray 20.

Meanwhile, the tray 20 seated on the tray seating unit 110 is not replaced every time by an operator, but loads a predetermined number of trays 20, and the trays 20 are attached to each tray seating unit 110. Can be supplied automatically.

Figure 4 is a perspective view showing a vision inspection apparatus according to a second embodiment of the present invention, Figures 5a to 5d is a plan view showing the operation of the vision inspection device of Figure 4, Figure 6 is a tray of the vision inspection device of Figure 4 Partial perspective view showing the payload.

In the second embodiment of the present invention, the arrangement of the tray seating unit 110 is different in the configuration of the first embodiment, and a tray transfer device for automatically transferring the tray 20 is different. And only the configuration to be added will be described.

In the vision inspection apparatus according to the second embodiment of the present invention, the tray seating units 400 may include one or more first tray seating units 410 on which the trays 20 on which the electronic components 10 to be vision-tested are mounted. And one or more second tray seating portions 420 on which the empty tray 20 is seated.

In this case, as illustrated in FIGS. 4 and 5A through 5D, two or more first tray seats 410 may be installed, and the first tray seats 410 may be installed in the tray 20 seated on the first tray seats 410. The electronic component 10 that is inferior in the defective electronic part 10-the defective part-is transferred to the tray 20 of the second tray seating part 420 in the tray 20 seated on another first tray seating part 410. 10) -goods-can be loaded.

On the other hand, the first tray seating portion 410 and the second tray seating portion 420 can be a variety of embodiments depending on the sorting result of the dumping unit 210, each of the good and defective, defective and defective to be configured to be loaded Can be.

In addition, when the plurality of trays 20 are seated, both the first tray seating portion 410 and the second tray seating portion 420 may include a tray 20 in which only good products are loaded and a tray 20 in which only defective items are loaded. It may include.

On the other hand, the second tray seat 420 is initially seated in the empty tray 20, the empty tray 20 in the tray 20 seated on the first tray seat 410 is defective electronic components ( 10) are filled. Of course, the tray 20 on which the electronic parts 10 to be vision-tested are mounted may also be seated in the second tray seating part 420.

On the other hand, the main body 100 has a tray loading portion 500 is loaded with trays 20 to be seated in the tray seating portion 400 to automatically transfer the tray 20; A tray transfer part 580 for transferring the tray 20 between the tray loading part 500 and the tray seating part 400 may be additionally installed.

As shown in FIGS. 4 and 6, the tray loading part 500 is configured to supply or withdraw the tray mounting part 400 and the tray 20 by loading a plurality of trays 20. A first tray loading part 510 for supplying the tray 20 to the first tray seating part 410 and loading the trays 20 to be inspected, a second tray loading part 520 for loading the empty trays; The tray 20 after the vision inspection and the sorting may be configured to include a third tray loading part 530 on which the trays 20 are stacked.

The first tray loading part 510 is a configuration in which the tray 20 on which the electronic parts 10 to be vision inspected and sorted are stacked is loaded.

The second tray loading part 520 is configured to supply the second tray seating part 420 after the loaded or defective electronic parts 10 of the tray 20 emptied in the vision inspection and sorting process are filled up.

The third tray loading portion 530 is a configuration for loading the tray 20 after sorting the electronic component 10 according to the inspection result after the vision inspection, the tray 20 is filled with good electronic components 10 And one or more good tray loading portions 531 to which the stacks are loaded, and one or more reject tray loading portions 532 to which the trays 20 filled with the defective electronic components 10 are stacked.

On the other hand, the tray loading portion 500 is installed on the lower side of the tray seat 400 inside the main body 100, the bottom portion 501 and the tray 20 to form a bottom so that the tray 20 can be stacked, ) May include guide members 502 for guiding each corner to be stably loaded. In this case, unlike the first embodiment, the tray seating unit 400 is configured in the form of a window formed on the upper surface 101 of the main body 100 so that the tray 20 may be smoothly supplied by the tray transfer unit 580. The tray 20 may be configured to include a tray fixing unit 401 to fix the tray 20 after supplying the tray 20 of the sending unit 580.

In addition, the tray loading part 500 is installed in a state of being stored inside the main body 100 so as not to be exposed to the outside, and the main body 100 so that an operator can pull out the trays 20 by grasping the handle 503 or the like. It can be installed to enable sliding.

The tray transfer unit 580 is configured to transfer the tray 20 between the tray loading unit 500 and the tray seating unit 400, and any configuration may be used if the tray transfer unit 580 is configured to transfer the tray 20.

As shown in FIG. 6, the tray transfer unit 580 includes a tray pick-up unit 581 for picking up the tray 20, a tray pick-up unit 581, and a tray loading unit 500 and a tray seating unit 400. It may be configured to include a pickup driving unit 582 for moving the tray 20 between.

The pickup driving unit 582 is configured to move the pickup unit 581 in the X-Z direction, and may be configured as an X-Z direction robot. Of course, according to the arrangement of the tray 20, the pickup driving unit 582 may include an X-Y-Z direction robot.

Referring to the operation of the vision inspection apparatus according to a second embodiment of the present invention having the configuration as described above in detail as follows.

First, the trays 20 to be vision inspected are stacked in the first tray loading part 510, and a predetermined number of empty trays 20 are loaded in the bin loading part 520.

When the tray 20 is finished loading, the tray transfer unit 580 supplies the tray 20 on which the electronic component 10 to be vision-tested is loaded from the first tray loading part 510 to the first tray seating part 410. The empty tray 20 is supplied to the second tray seat 420.

When the supply of the tray 20 is completed, the vision inspection unit 300 and the dumping unit 210 perform a vision inspection and sorting operation of the electronic component 10 loaded on the tray 20.

The tray seat 400 may be configured in various ways according to an operation method. As described above, the tray seat 400 may include at least one first tray seat 410 and at least one second tray seat 420. Can be. For example, the tray seat 400 may include two first tray seats 410 and one second tray seat 420, as shown in FIGS. 4 to 5D. have.

First, as shown in FIG. 5A, the trays 20 to be vision-tested are respectively seated on the two first tray seats 410, and the empty trays 20 are seated on the second tray seats 420. .

When the seating of the tray 20 is completed, the vision inspection unit 300 performs vision inspection on the electronic components 10 loaded on the tray 20 of the first tray seating portion 410 by the movement of the XY robot 320. Perform

When the vision inspection of the vision inspection unit 300 is completed, the electronic components 10 loaded on the tray 20 of the first tray seat 410 according to the inspection result of each electronic component 10 as shown in FIG. 5A are defective. The electronic components 10 are transferred to the tray 20 seated on the second tray seat 420.

As shown in FIG. 5B, the dumping part 210 may have good electrons in the tray 20 (right tray) of one of the two first tray seats 410 with the transfer of the defective electronic parts 10. The component 10 is transferred to the tray 20 (the left tray) of the other first tray seat 410.

As shown in FIG. 5B, when all of the good electronic components 10 are filled in the tray 20 (the left tray) of the first tray seat 410, the tray 20 is transferred to the good tray loading part 531. Then, the new tray 20 is supplied from the first tray loading part 510 to the first tray seating part 410 again.

Meanwhile, as shown in FIG. 5C, when all of the good electronic components 10 are transferred to the tray 20 (the right tray) of the first tray seat 410, the empty tray 20 is the second tray. The stacker 520 may be stacked and a new tray 20 may be supplied from the first tray stacker 510 to the first tray seat 410.

On the other hand, as shown in Figure 5d, when the tray 20 of the second tray mounting portion 420 is filled with the defective electronic component 10, the reject tray loading portion of the third tray loading portion 530 The tray 20 is transferred to 532, and the new empty tray 20 is again supplied from the second tray loading part 520 to the second tray seating part 420.

On the other hand, the vision inspection apparatus according to the present invention can be configured to inspect both the bottom and the top, that is, both sides of the electronic component 10 as needed.

7 is a perspective view showing a vision inspection apparatus according to a third embodiment of the present invention, FIG. 8 is a front view showing a part of the vision inspection apparatus of FIG. 7, FIG. 9 is a plan view of the vision inspection apparatus of FIG. 7, and FIG. 10A to 10C are partial front views illustrating the operation of the reversing apparatus of the vision inspection apparatus of FIG. 7.

The vision inspection apparatus according to the third embodiment of the present invention is configured to perform vision inspection (first vision inspection) firstly, invert the electronic component 10, and perform vision inspection (second vision inspection) secondly. . Here, the second vision inspection has a configuration similar to that of the second embodiment, and for the sake of convenience, the same reference numeral is given to the similar configuration, and detailed description thereof will be omitted.

Vision inspection apparatus according to a third embodiment of the present invention, as shown in Figure 7 to 9, the main body 100; A first inspection unit installed at the main body 100 to perform a first vision inspection; An inverting unit 700 installed in the main body 100 and receiving a tray 20 after the first vision inspection is completed by the first inspection unit to reverse the loading state of the electronic component 10 loaded on the tray 20; A second inspection unit installed at the body 100 and performing a second vision inspection and a sorting operation; It may be configured to include one or more tray transfer unit (780, 580) for transporting the tray (20).

The tray transfer unit 780, 580 is a tray between the first tray seating portion 810, the second tray seating portion 820, the inverting portion 700 and the tray loading portion 500 of the first inspection portion Various configurations are possible as the configuration for transferring the 20, and may have the same or similar configuration as in the third embodiment. Here, reference numeral 781 denotes a pickup portion for picking up the tray 20.

At this time, the tray transfer unit 780, 580, as shown in Figure 7, the first inspection unit and the second inspection unit in consideration of the transfer of the tray 20 can be made in consideration of the first inspection unit and the smooth performance of the process It may be installed separately in each of the second inspection unit.

In addition, the tray conveying parts 780 and 580 may include a plurality of first tray seating parts 810 and may be disposed in the horizontal direction as well as in the vertical direction, depending on the arrangement of the first tray seating parts 810. It may include an XZ direction robot or XYZ direction robot to move in the direction.

At least one first tray seating part 810 fixedly installed on the main body 100 to seat the tray 20 on which the electronic component 10 for the first vision inspection is mounted; A first vision inspection unit for performing a first vision inspection on the electronic component 10 loaded on the tray 20 seated on the first tray seating portion 810 while moving from the upper portion of the first tray seating portion 810 ( 630 may be configured.

The first tray seat 810 has a similar configuration to the second tray seat 820 of the second inspection unit to be described later, it is preferable that the first tray seat 810 is composed of two or more for smoothly performing the first vision inspection. . In this case, when the plurality of first tray seats 810 is configured, the first tray seat 810 may be disposed in a horizontal direction or a vertical direction. In consideration of the size of the device, the first tray seat 810 may be disposed in a horizontal direction (X-axis direction). Is preferably perpendicular to the direction, i.e., longitudinal direction (Y-axis direction).

The first vision inspection unit 630 has a configuration similar to that of the vision inspection unit in the first and second embodiments, and acquires an image of the appearance of the electronic component 10 to be inspected and analyzes the acquired image to determine whether there is a defect. As the inspection device, it may be composed of an image acquisition device (not shown) such as a camera and an image analysis device (not shown).

In addition, the first vision inspection unit 630 is installed on the main body 100 so as to photograph the electronic component 10 loaded on the tray 20 while moving from the upper portion of the first tray seat 810. As shown in the figure, it may be installed in the XY robot 620 to move in the XY direction.

As described above, the second inspecting unit has a configuration similar to that of the third embodiment, and two or more second fixing units installed on the main body 100 and on which the tray 20 inverted by the inverting unit 700 is seated. Tray seating portions 820; A second vision inspection unit that performs a second vision inspection on the electronic component 10 loaded on the tray 20 seated on the second tray seating portions 820 while moving above the second tray seating portions 820. The electronic component 10 loaded on the tray 20 of the second tray seating portions 820 while moving from the upper portion of the second tray seating portions 820 is different from that of the second tray seating portions 820. It may be configured to include a dumping unit 210 to move to the tray 20.

The second inspection unit has a configuration similar to that of the third embodiment, and thus a detailed description thereof will be omitted. However, since the sorting operation is performed according to the vision inspection result in the second inspection unit, the arrangement of the second tray seat 820 may be changed to perform the sorting process according to the first vision inspection result and the second vision inspection result. have.

For example, the second tray seats 820 may include one or more first sub tray seats 821 on which the trays 20 on which the electronic components 10 to be vision-loaded are mounted, respectively, A plurality of second sub tray seating parts receiving the tray 20 from the sub tray seating part 821 and sorting the electronic parts 10 of the good and the electronic parts 10 of the defective by the dumping part 210 ( 822).

The first sub tray seating unit 821 may be configured to perform both the second vision inspection and the sorting process, or as illustrated in FIGS. 7 to 9, and may be configured to perform only the second vision inspection and the first inspection unit. It may have a similar configuration as the first tray mounting portion 810 of.

In addition, the first sub tray seating unit 821 may be disposed immediately adjacent to the first inspection unit in consideration of the tray 20 being transferred after the first vision inspection and inversion process. That is, it may be disposed between the first inspection unit and the second sub tray mounting unit 822.

The second sub tray seating part 822 is configured to be classified as defective after the first vision inspection (R1), defective after the second vision inspection (R2), etc. according to the first vision inspection and the second vision inspection result. According to the sorting method, a part of the tray may be fixed and the like, and a plurality of configurations may be provided to classify the electronic parts 10 of good and bad parts.

For example, as illustrated in FIGS. 7 and 9, the third tray seat 822 may include one or more second-first to first trays 20 to receive the tray 20 from the first sub tray seat 821. It is composed of 2-3 sub-tray seating parts (822a, 822a, 822a), by the dumping portion 210 one or more 2-1 sub-tray seating portion (831a) is a good quality electronic component 10, 2-2 sub tray seating part 822b has the first defective electronic component 10 according to the first vision inspection, and 2-3 sub tray seating part 822c has the second defective electronics according to the second inspection unit. Part 10 may be loaded.

The second sub tray seating part 822 may further include a buffer tray part 424 in which the electronic component 10 may be temporarily loaded for malfunction or initialization of the device.

The second tray seat 820 may be disposed in the horizontal direction or the vertical direction when a plurality of the second tray seat 820 is configured similarly to the arrangement of the first tray seat 810 of the first test part described above. When the direction in which the first inspection unit and the second inspection unit are disposed is referred to as the horizontal direction (X-axis direction), it is preferable that the first inspection unit and the second inspection unit are arranged in the longitudinal direction (Y-axis direction).

On the other hand, the vision inspection unit 300 and the dumping unit 210 may have the same configuration as the second embodiment according to the configuration and arrangement of the first and second tray seating portion 810, 820, the second tray seating When the part 820 is configured to be separated into the first sub tray seating part 821 and the second sub tray seating part 822, the dumping part 210 and the vision inspection part 300 are separate XY robots 620 and 640. It can be configured to be driven independently from each other by.

Meanwhile, the second vision inspection unit 300 may have various configurations, such as a configuration similar to the first vision inspection unit 610 or a configuration similar to that of the second embodiment, and as shown in FIGS. 7 to 9, XY. It may be installed in the XY robot 640 to move in the direction. In this case, the XY robot 620 for the movement of the first vision inspection unit 610 and the XY robot 640 for the movement of the second vision inspection unit 300 may share a guide rail 650 for guiding the movement. have.

In addition, as in the second embodiment, the dumping part 210 moves in the upper portion of the second sub tray seating part 822 and moves the main body 100 to transfer the electronic component 10 loaded in the tray 20. 7 and 9, it may be installed in the XY robot 320 to move in the XY direction.

Meanwhile, as in the second embodiment, trays 20 to be seated by the first and second tray seats 810 and 820 are stacked on the main body 100 so as to automatically transport the trays 20. The loaded tray 500 may be additionally installed.

The tray loading part 500 has a configuration similar to that of the second embodiment, and a plurality of trays 20 are stacked to supply or withdraw the first tray seating part 810 and the tray 20 of the first inspection part. In this configuration, the tray 20 to be non-inspected is stacked, the first tray loading portion 510 for supplying the tray 20 to the first tray seating portion 810 of the first inspection portion, and the empty trays are stacked. It may be configured to include a second tray loading portion 520, and a third tray loading portion 530 is loaded with the trays 20 after the vision inspection and sorting.

The third tray loading part 530 is a good tray loading part 531 in which the tray 20 on which the good electronic component 10 is loaded is loaded in consideration of the vision inspection being the first vision inspection and the second vision inspection. ), The tray 20 on which the electronic component 10 having a defect (R1) is loaded after the first vision inspection, and the tray 20 on which the electronic component 10 of the defect (R2) is loaded after the second vision inspection is The first reject tray loading part 532 and the second reject tray loading part 533 may be configured to be separately loaded.

In addition, the tray loading unit 500 may further include a buffer tray loading unit (not shown) so that the tray 20 can be temporarily loaded after the first vision inspection and after reversing.

Meanwhile, the inversion unit 700 may perform a second vision inspection for inspecting another surface (lower surface or upper surface) that is not vision-tested after the first vision inspection for inspecting one surface (upper surface or lower surface) of the electronic component 10. The first inspection unit receives the tray 20 having completed the first vision inspection and is configured to reverse the loading state of the electronic component 10 loaded on the tray 20.

As shown in FIGS. 10A to 10C, the inversion unit 700 may include a tray transferred by the tray pickup unit 322 and the tray transfer unit 780 to pick up the temporary tray 21 before the tray 20 is inverted. 20) and the temporary tray 21 picked up by the pickup unit 322, and then folded the temporary tray 21 and the tray 20, the electronic components 10 loaded on the tray 20 temporary tray It may be configured to include an inverting device 720 to be loaded inverted to (21).

The pickup unit 322 is configured to pick up the temporary tray 21 before and after the reversal of the reversing apparatus 720. Various configurations are possible, and the temporary tray 21 is picked up before the tray 20 is inverted. After the temporary tray 21 and the tray 20 are reversed, the electronic product 10 picks up the empty tray 20 so that it can be used as another temporary tray.

The reversing device 720 is configured to rotate the tray 20 and the temporary tray 21 in a nested state, and various configurations are possible, and the tray 20 and the tray pick-up unit transferred by the tray transfer unit 780 are provided. The tray fixing part 721 for fixing the temporary tray 21 picked up by the 322 to each other and then fixing the nested temporary tray 21 and the tray 20, the nested temporary tray 21 and the tray ( 20 may be configured to include a tray rotating unit 722 for rotating.

Meanwhile, the tray 20 on which the electronic component 10 is loaded may have various structures, and both upper and lower surfaces may have a usable structure. The tray 20 may be stacked on the bottom surface after inverting the electronic component 10 loaded on the upper surface. It may have a structure.

At this time, the temporary tray 21 picked up by the pickup unit 322 should always be picked up to face the same surface as the nesting tray 20. Therefore, since the tray 20 after being inverted by the inversion apparatus 720 is inverted, the tray 20 used as the temporary tray 21 after inversion of the inversion apparatus 720 may be inverted.

On the other hand, the temporary tray 21 loaded with the electronic products 10 inverted by the inverting device 720 of the inverting unit 700 is performed by the second inspection in a state inverted by another tray transfer device 580 To the second inspection unit.

Referring to the vision inspection apparatus according to the third embodiment having the above configuration in detail as follows.

First, as in the second embodiment, the trays 20 to be vision inspected are stacked in the first tray loading part 510, and a predetermined number of empty trays 20 are loaded in the bin loading part 520. .

After the stacking of the tray 20, first, the tray transport unit 780 of the first inspection unit receives the tray 20 on which the electronic component 10 to be vision inspected is loaded from the first tray loading unit 510. 810).

When loading of the tray 20 to the first tray seating unit 810 is completed, the first vision inspection unit 630 of the first inspection unit performs a first vision inspection.

When the first vision inspection is completed, the tray transfer unit 780 withdraws the tray 20 from the first tray seat 810 and transfers the tray 20 to the inversion unit 700. In this case, when the tray 20 is pulled out from one of the first tray seating parts 810 when the first tray seating part 810 is configured to be two or more, the first vision inspection part 630 is another first tray seating part. Since the electronic components 10 mounted on the tray 20 of 810 may be inspected, the first vision inspection may be continuously performed without interruption.

On the other hand, the tray transfer unit 780 transfers the tray 20 to the inverting unit 700 and supplies another tray 20 to be inspected from the first tray loading unit 610 to the first tray seating unit 810. .

On the other hand, the inverting unit 700 receives the tray 20 after the first vision inspection reverses the inverted tray 20 and then reverses the loading state of the electronic component 10.

After the inversion of the tray 20 is completed by the inversion unit 700, the tray transport unit 580 of the second inspection unit is moved to receive the tray 20 loaded with the inverted electronic component 10. Transfer to the second tray seating portion 820 of.

After the tray 20 is transferred to the second tray seating portion 820 of the second inspection portion, in particular the first sub tray seating portion 821, the second inspection portion 300 is similar to the second embodiment described above. Works.

-Second Vision Inspection and Sorting Process

When the tray 20 is seated on the first sub tray seating part 821 of the second tray seating part 820 of the second test part, the second vision test part 300 performs a second vision test.

After the second vision test, the tray 20 is transferred to the second sub tray seat 822 by the tray transporter 580, and then the dumping part 210 is used according to the first vision test and the second vision test result. The electronic components 10 are sorted.

The sorting process may be variously configured according to the number and arrangement of the second sub tray seating portion 822.

For example, as described above, the second sub tray seating part 822 may be composed of the second to third sub tray seating parts 822a, 822b, and 822c, and the second sub tray mounting parts 822 may be configured as described above. The trays 20 to be sorted may be configured to be continuously supplied from the first sub tray seating part 821 to the second-third sub tray seating parts 822a, 822b, and 822c.

At this time, the electronic parts 10 of the good article are sorted in the 2-1 sub tray seating part 822a by sorting, and the electronic parts of the defective 1 according to the first vision inspection are included in the 2-2 sub tray seating part 822b. (10) In the second sub-tray mounting portion 822c, the electronic component 10 of the defect 2 according to the second vision inspection may be loaded.

Meanwhile, the sorting process of the dumping unit 210 is as follows.

First, the dumping part 210 may check the electronic component 10 of the defectives (defect 1 according to the first vision inspection, defect 2 according to the second vision inspection) loaded on the 2-1 sub tray seating portion 822a. It picks up and moves to the 2-2 sub-tray seating part 822b or the 2-3 sub-tray seating part 822c.

The dumping part 210 picks up the electronic parts 10 of good quality from the tray 20 of the 2nd-2 sub tray seating part 822b or the 2nd-3 sub tray seating part 822c, The electronic component 10 of defective 1 according to the first vision inspection or defective 2 of the second vision inspection is loaded.

The dumping part 210 is moved back to the 2-1 sub-tray seating part 822a and then picked up from the 2-2 sub-tray seating part 822b or the 2-3 sub-tray seating part 822c. The good electronic component 10 is loaded in an empty place.

Through the sorting process of the dumping part 210 as described above, each of the 2-1 sub-tray seating part 822a, the 2-2 sub-tray seating part 822b and the 2-3 sub-tray seating part 822c When each tray 20 is filled with the electronic parts 10 of good, bad 1 and bad 2 are replaced with another tray 20 or moved to a tray loading part 500 which will be described later.

On the other hand, each of the 2-1 to 2-3 sub-tray mounting portion (822a, 822b, 822c) can be supplied from the second tray loading portion 520 when the empty tray is additionally required.

Meanwhile, the tray 20 completed by the sorting process is loaded from the second sub tray mounting part 822 into the tray loading parts 500.

That is, the tray 20 of the 2-1st tray seating portion 822a is loaded into the good tray loading portion 531 when the trays 20 of the 2-1th tray mounting portion 822a are filled with good electronic components 10, and the 2-2nd and 2-3rd sub trays are provided. The trays 20 of the seating parts 822b and 822c are loaded into the reject tray loading parts 532 and 533 when the trays 20 of the mounting parts 822b and 822c are filled with the defective electronic parts 10.

Here, any one of the reject tray loading units 532 and 533 is loaded with the tray 20 inspected as defective 1 in the first vision inspection, and the other tray 20 is inspected as defective 2 in the second vision inspection. Can be loaded.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

1 is a plan view showing an example of a conventional vision inspection apparatus.

2 is a perspective view showing a vision inspection apparatus according to a first embodiment of the present invention.

3A to 3C are plan views illustrating the operation of the vision inspection apparatus of FIG. 2.

4 is a perspective view showing a vision inspection apparatus according to a second embodiment of the present invention.

5A through 5D are plan views illustrating the operation of the vision inspection apparatus of FIG. 4.

6 is a partial perspective view showing a tray loading part of the vision inspection apparatus of FIG.

7 is a perspective view showing a vision inspection apparatus according to a third embodiment of the present invention.

8 is a front view illustrating a part of the vision inspection apparatus of FIG. 7.

9 is a plan view of the vision inspection apparatus of FIG.

10A to 10C are partial front views illustrating the operation of the inverting device of the vision audit device of FIG. 7.

***** Explanation of symbols for main parts of drawing *****

10: electronic component 20: tray

100: main body 210: dumping part

300: vision inspection

Claims (8)

Two or more trays on which electronic components are stacked; A vision inspection unit which performs vision inspection of electronic components loaded on the trays; A dumping part for exchanging good and defective electronic parts between the trays according to the vision inspection result; The dumping unit is a vision inspection apparatus for loading the electronic parts of good quality in at least one tray, and loading the defective electronic parts in at least one other tray. The method according to claim 1, And the vision inspection unit and the dumping unit are driven independently or interlocked and fixed to at least one shaft. The method according to claim 1, The dumping unit includes a plurality of pickers for picking and placing (Pick and Place) the electronic components. A plurality of first tray seats on which trays on which electronic components are stacked are respectively seated; At least one second tray seat on which the empty tray is seated; A vision inspection unit which performs vision inspection of electronic components loaded on the trays; And a dumping part for classifying good and defective electronic parts into at least one first tray seating part and a second tray seating part according to the vision inspection result. The method according to claim 4, The dumping part is a vision inspection, characterized in that for loading at least one tray of the electronic parts of the good quality seated on the first tray seating portion, and loading the defective electronic parts in the empty tray seated on the second tray seating portion Device. The method according to claim 4, At least one first tray loading portion on which trays on which the electronic components are stacked are stacked; At least one second tray loading portion on which the empty tray is stacked; At least one article tray loading section on which a tray on which the electronic parts of the article are loaded is loaded; At least one defective tray loading portion on which a tray on which the defective electronic parts are stacked is loaded; Further comprising a tray transfer unit for transferring the trays between the first tray seating portion, the second tray seating portion, the first tray loading portion, the second tray loading portion, the good quality tray loading portion and the defective tray loading portion. Vision inspection device. At least one first tray seating unit on which a tray on which an electronic component for vision inspection is mounted is mounted; A first inspection unit including a first vision inspection unit for performing a first vision inspection of the electronic component loaded on the tray of the first tray seating unit; An inverting unit which receives the tray that has completed the first vision inspection and inverts the loading state of the electronic components loaded in the tray; Two or more second tray seats on which the tray inverted by the inverter is seated; A second vision inspection unit configured to perform a second vision inspection of the electronic components loaded on the tray seated on the second tray seating unit, and the second tray seat according to the first and second vision inspection results after the second vision inspection; A second inspection part including a dumping part for classifying the electronic parts loaded on the trays of the parts into good and bad parts; And a tray transfer unit configured to transfer a tray between the first inspection unit, the inversion unit, and the second inspection unit. The method of claim 7, The inversion unit The tray pick-up unit which picks up the tray in an inverted state before the tray reversal, the tray transported by the tray transfer unit and the tray picked up by the tray pick-up unit are stacked, and then the stack of stacked trays is turned upside down. Vision inspection apparatus comprising a reverse device for reversing the loading state of parts.

Images