TWI820488B - Handler for processing electronic components and method for detecting inferior insert - Google Patents

Abstract

The present invention relates to a sorting machine for handling electronic components and a method for confirming whether inserts are defective. According to the present invention, the brightness difference of each part of the insert is used to confirm whether the insert is defective, and the operation of confirming whether the insert is defective during the standby period of the tray is improved by improving the pallet transfer logistics, so that the production cost is not increased. Improve equipment reliability.

Description

Sorting machine for processing electronic components and method for confirming whether inserts are defective

The present invention relates to a technology for confirming whether an electronic component loading insert is defective.

The produced electronic components go through a testing process or a classification process before leaving the factory. In this procedure, an electronic component processing sorter (hereinafter referred to as the "sorter") for processing electronic components is used.

For example, a sorter provided in a testing process of electronic components performs the following operations: moves electronic components to be tested loaded on a customer pallet to a test tray, and then electrically connects the electronic components loaded on the test tray to a tester, and The electronic components that have completed testing are sorted into grades and moved again to customer pallets. Regarding this, you can refer to the technology disclosed in Korean Patent Publication No. 10-2017-0108703 (hereinafter referred to as the "existing technology").

That is, electronic components are supplied to the sorting machine in a state of being loaded on customer pallets. However, usually electronic components are moved from customer pallets and loaded onto processing pallets (hereinafter referred to as "pallets") required for processes such as testing or sorting. Processing process.

Pallets are often equipped with inserts for loading electronic components.

Although the interposer can have various structures depending on the size of the electronic component, the loading configuration, etc., defects may occur due to breakage due to use or detachment due to impact.

If the insert is defective, defects may occur during the loading operation of the electronic components, thereby preventing the normal processing process. Not only that, but also reducing the reliability of the equipment due to damage to expensive electronic components during the loading process.

Therefore, various techniques for inspecting inserts for defects have been proposed.

However, it is difficult to apply any one inspection technique to various sorting machines due to factors such as the structure of the insert, the moving path of the insert, surrounding structures, and lighting.

Additionally, there may be an added time burden due to the comparison of good normal images with captured images, thereby reducing the processing capacity of the device. Of course, if a scanning camera with fine photography and a computing device with high computing speed are applied, the time required for inspecting defects can be slightly shortened. However, the production cost of the device increases accordingly due to the need to equip it with expensive scanning cameras and computing devices.

The present invention was proposed in consideration of a technology that can accurately confirm defects of inserts while using an inexpensive area camera.

A sorting machine for processing electronic components according to the present invention includes: a picker that loads electronic components to a pallet located at a loading position or unloads electronic components from a pallet located at an unloading position; and a processor that when electronic components are loaded by the picker When the component pallet reaches the processing position, the electronic components loaded on the pallet are processed; a plurality of transfers are used to connect the pallet to the loading position again after passing through the loading position, the processing position and the unloading position. on the circular movement; a camera arranged to photograph the insert of a pallet not loaded with electronic components on the circular path; and a controller to control the picker, the processor, the plurality of transfers and the camera , by comparing the image captured by the camera with the information of a good and normal insert to confirm whether the insert is defective.

The camera is arranged to photograph the insert of a pallet that is not loaded with electronic components between the loading position and the unloading position.

Between the loading position and the unloading position, there is a standby position where a pallet not loaded with electronic components is located. Among the plurality of transfers, the pallet in the unloading position passes through the standby position toward the loading. The specific transfer device for position movement includes: a first clamper, which clamps the pallet located in the standby position or releases the clamping of the pallet; and a second clamper, which clamps the pallet located in the unloading position or releases the clamping of the pallet. The clamping of the pallet and performing the clamping operation independently of the first clamper; and the mover by moving the first clamper or the second clamper from the unloading position to the desired position. The loading position moves in the direction or in the opposite direction to move the pallet in the standby position to the loading position or the pallet in the unloading position to move to the standby position, wherein the controller passes through the third After a clamper and a second clamper simultaneously clamp the pallet in the standby position and the pallet in the unloading position, when the pallet in the standby position moves to the loading position, the pallet in the unloading position When the pallet in the stop position moves to the stop position between the loading position and the standby position, the clamping of the first clamper is released, and then the pallet in the stop position is moved to the standby position. , and controls the transfer device and the camera to cause the camera to photograph the insert of the pallet in the process of moving from the stop position to the standby position.

Between the loading position and the unloading position, there is a standby position where a tray without electronic components is located. The camera may be arranged between the unloading position and the standby position or between the standby position and the unloading position. between the loading positions.

The sorting machine for electronic component processing according to the present invention further includes: a heat soaking chamber that applies thermal stress to the electronic components loaded on the pallet from the loading position; and a heat removal chamber that moves the pallet to the unloading position. Before, the thermal stress of the electronic components loaded on the pallet is removed; wherein the camera may be arranged between the unloading position and the heat soaking chamber or between the heat removal chamber and the unloading position.

The electronic component processing sorting machine according to the present invention further includes: a shielding plate that blocks the background when the insert of the tray is photographed by the camera, wherein the camera is located below the tray, and the shielding plate is located on the tray. above.

A method of confirming whether an electronic component loading insert is defective according to the first aspect of the present invention includes: an input step of inputting information about a good and normal insert; a photographing step of photographing the insert; and a first selection step: A first region of interest is selected from the image taken in the photographing step based on the first part of the insert; a second selection step is based on a second part of the insert that is different from the first part and is selected from the image taken in the photographing step. Selecting a second region of interest from the captured image; and a confirming step, based on the first region of interest selected in the first selection step and the second region of interest selected in the second selection step. information to confirm whether the insert is defective.

The method for confirming whether there is a defect in an electronic component loading insert according to the present invention also includes: a third selection step, after the second selection step, confirming the center of the second area of interest, and further selecting the confirmed The center is the third region of interest of the center point, and the confirming step confirms whether there is a defect in the insert by comparing the relative position deviation of the first region of interest and the third region of interest.

The first region of interest and the third region of interest are selected in a rectangular box shape, and a rectangular side of the third region of interest is parallel to a corresponding rectangular side of the first region of interest.

The information input in the input step is the structure of the insert and numerical information about the brightness of each part.

The third area of interest has a different brightness than the remaining areas of the insert.

A method for confirming whether an electronic component loading insert is defective according to the second aspect of the present invention includes: an input step of inputting information about a good and normal insert; a photographing step of photographing the insert; and a first selection step: The first region of interest is selected based on the image of the first part of the insert taken in the shooting step; the second selection step is based on the second part of the insert that is different from the first part from the image taken in the shooting step. Select a second region of interest in the image; a third selection step, confirm the center of the second region of interest selected in the second selection step, and select a third region of interest with the confirmed center as the center point; The confirming step is to confirm whether there is a defect in the insert by comparing the relative position deviation of the first region of interest and the third region of interest.

The first region of interest and the third region of interest are selected in a rectangular box shape, and a rectangular side of the third region of interest is parallel to a corresponding rectangular side of the first region of interest.

The information input in the input step is the structure of the insert and numerical information about the brightness of each part.

The third area of interest has a different brightness than the remaining areas of the insert.

According to the present invention, since it is possible to accurately confirm whether an insert is defective by using an inexpensive area camera and a low-spec computing device, production costs can be reduced and equipment reliability can be improved.

In the following, the preferred embodiments of the present invention as described above will be described with reference to the drawings. For the sake of simplicity of description, repeated descriptions will be omitted or compressed as much as possible. ＜Overview of sorting machines for electronic component testing＞

FIG. 1 is a conceptual plan view of a sorting machine 100 for electronic component processing according to an embodiment of the present invention.

The sorting machine 100 of Figure 1 is provided for the testing process of electronic components, and includes a supply recovery part SR, a first picker 111, a second picker 112, a processor 120, a plurality of transferers 130, T1, T2, T3, T4, cameras 141 to 144, shielding plate 150, holder 160 and controller 170.

The supply and recovery section SR is located at the front and is equipped to supply or recover electronic components loaded on customer pallets CT. This supply and recovery section SR may have a form including a stacker as described in Korean Patent Publication No. 10-2017-0033131, or may have a form in which a supply cart is attached as described in Korean Patent Publication No. 10-2017-0103496. That is, regardless of the form, the supply and recovery section SR only needs to be able to store the customer tray CT loaded with the electronic components to be tested and the customer tray CT loaded with the electronic components that have been tested. The customer pallet CT can move forward and backward in the area of the supply and recovery section SR. The first picker 111 and the second picker 112 perform operations with the customer pallet CT located at the rear as an object, and the first picker 111 or the second picker 112 The customer tray CT moved forward after the operation of the machine 112 is completed.

The first picker 111 moves the electronic components supplied through the supply and recovery section SR to the test tray TT (hereinafter simply referred to as “tray”) as a processing tray located at the loading position LP. When the electronic components are moved and loaded onto the tray TT by such first picker 111, if the insert of the tray TT is defective, the loading operation of the electronic components may be defective.

The second picker 112 moves the tested electronic components from the tray TT located at the unloading position UP to the customer tray CT located at the supply recovery section SR. Of course, in the operation process by the second picker 112, the electronic components are sorted by test level and moved to the customer tray CT.

For reference, in this embodiment, the first picker 111 for loading electronic components on the tray TT and the second picker 112 for unloading the electronic components from the tray TT are separately provided, but in consideration of test time, etc., The first picker 111 and the second picker 112 can be integrated into one picker, and when only the operation of loading electronic components on the tray TT is required, the second picker 112 can be omitted.

The processor 120 electrically connects the electronic components loaded on the tray TT moved to the test position TP as the processing position to the test socket of the tester and processes them. Obviously, the test of the electronic component is performed in a state where the electronic component is electrically connected to the test socket through the processor 120 .

The plurality of transfers 130, T1, T2, T3, and T4 cyclically move the pallet TT along a closed loop path from the loading position LP through the test position TP and the unloading position UP, and then back to the loading position LP. In the circulation path that is one of the features of the present invention, the transfer of the pallet TT formed in the section S from the unloading position UP to the loading position LP is handled by a transfer device represented by reference numeral 130, which will be described later in other categories. Be specific.

The cameras 141 to 144 photograph the insert of the tray TT on which no electronic components are mounted between the loading position LP and the unloading position UP. Such cameras 141 to 144 are located below the tray TT. In the present embodiment, the reason why four cameras 141 to 144 are provided is that one electronic component is supported by two inserts and four inserts are confirmed at a time to increase processing speed. Therefore, only two cameras are needed to confirm two inserts paired with each other without increasing the processing speed. In addition, if there is a structure in which the electronic components are loaded in an inserter and there is no need to increase the processing speed, it can be equipped with only one camera.

When the inserts of the tray TT are photographed by the cameras 141 to 144, the shielding plate 150 can block the complex-shaped background due to the upper structure, so that a clear image of the insert can be obtained by the cameras 141 to 144. Therefore, the shielding plate 150 is located above the tray TT. Of course, there may be a situation where the cameras 141 to 144 are installed in a small space where the shielding plate 150 cannot be installed or in a space where the shielding plate cannot be arranged due to interference with other devices. Therefore, the shielding plate 150 is an optional structure.

The holder 160 is configured to fix the pallet TT in the standby position WP between the loading position LP and the unloading position UP.

The controller 170 controls the configuration and compares the images captured by the cameras 141 to 144 with numerical information of good normal inserts to check whether there are defects in the inserts.

For reference, component numeral 180 is a mounter equipped with a buffer tray BT for temporarily storing electronic components in various situations. SC is a heat soaking chamber for applying thermal stress to preliminarily assimilate the electronic components loaded on the pallet TT from the loading position LP to a temperature based on the test conditions, and TC is an electronic component loaded on the accommodated pallet TT. The test chamber where the test is performed, DC, is a heat removal chamber for removing thermal stress from the electronic components loaded on the tray TT before the tray TT loaded with the electronic components that has been tested moves to the unloading position UP. <Explanation of the movement of the pallet from the unloading position to the loading position>

As shown in the conceptual extraction diagram shown in Figure 2, there is a stop position SP and a standby position WP between the loading position LP and the unloading position UP. In this embodiment, in order to reduce the left and right width of the sorting machine 100, the right side of the stop position SP overlaps with the left side of the standby position WP.

The stop position SP is a position where the pallet TT moved from the unloading position UP stops, and the waiting position WP is a position where the pallet TT stopped at the stop position SP retreats toward the unloading position UP and waits. Of course, the tray TT located at the stop position SP and the standby position WP is not loaded with electronic components.

First, as shown in FIG. 3 , when the trays TT not mounted with electronic components are located at the unloading position UP and the standby position WP respectively, the transfer device 130 moves the two trays TT toward the loading position LP together. Therefore, as shown in FIG. 4 , the pallet TT located at the standby position WP moves to the loading position LP, and the pallet TT located at the unloading position UP moves to the stop position SP.

In the state shown in FIG. 4 , the transfer device 130 only moves the pallet TT located at the stop position SP toward the unloading position UP and moves it to the standby position WP as shown in FIG. 5 . In this procedure, the cameras 141 to 144 photograph the insert of the tray TT. In addition, in order to take pictures by the cameras 141 to 144, it is preferable to implement the transferer 130 to move backward in steps by repeatedly moving and stopping the tray TT. If the imaging is performed while retracting the moving pallet TT step by step in this manner, the cameras 141 to 144 can be configured with low-priced area cameras, so the production cost can be reduced.

According to the present embodiment, the interval between the loading position LP and the unloading position UP is set to have separate stop positions SP and standby positions WP, so that the time when the pallets TT are all filled at the loading position LP and the time at the unloading position UP During the time when all pallets TT are unloaded, one pallet TT can move and stop or standby between the loading position LP and the unloading position UP. Furthermore, since the defect confirmation operation for the insert can be performed during this time, the defect confirmation operation for the insert does not reduce the operation rate of the sorter 100 . ＜Explanation of the pallet＞

Before describing the transfer device 130 responsible for transferring the pallet TT from the unloading position UP to the loading position LP and the method of confirming insert defects, the structure of the pallet TT will first be described.

As shown in FIG. 6 , the tray TT has an installation frame IF and a plurality of inserts IT.

Setting framework IF is used to set multiple plug-ins IT. In addition, clamping grooves GG are formed on the left and right sides of the installation frame IF so that the transfer device 130 can clamp and release the clamping.

The plurality of interposers IT are equipped so that a pair of interposers IT facing each other in the front-rear direction can load one electronic component ED. As shown in FIG. 7 , the insert IT has a fixing body B and a clamping part G.

The fixing body B is a portion fixed to the installation frame IF and is made of black resin material.

The clamping member G has a shape in which the lower end portion of the electronic component ED can be inserted and clamped, and is made of a metal material. Therefore, the fixed body B and the clamping member G have different brightness from each other, and in the images acquired by the cameras 141 to 144 , the fixed body B and the clamping member G have a brightness difference. Of course, if they are configured to have mutually different brightnesses, there is no reason why the materials or colors of the fixing body B and the clamping member G are limited to this embodiment. ＜Explanation of the transfer unit＞

FIG. 8 is a schematic perspective view of the transfer device 130 responsible for transferring the pallet TT from the unloading position UP to the loading position LP and the structure combined with the transfer device 130 .

The transfer device 130 is generally arranged between the loading position LP and the unloading position UP, and includes a pair of transfer rails 131a, 131b, a first gripper 132, a second gripper 133 in the extraction diagram of FIG. 9, and a mover. 134.

The pair of transfer rails 131a and 131b are fixedly provided on the base plate BP, and are provided with a plurality of rollers R to guide the movement of the tray TT moving in the left-right direction.

The first clamper 132 can clamp or release the right side of the pallet TT located in the standby position WP, and is equipped with a clamping pin 132a and a lifter 132b.

The clamping pin 132a is inserted into the clamping groove GG of the pallet TT when ascending to engage and clamp the pallet TT, and is separated from the clamping groove GG of the pallet TT when descending to release the clamping of the pallet TT.

The lifter 132b raises and lowers the clamping pin 132a so that the clamping pin 132a can clamp or release the clamping of the pallet TT.

The second clamper 133 can clamp or release the left side of the pallet TT located in the unloading position UP, and has the same structure as the first clamper 132 . Since such a second clamper 133 and the above-described first clamper 132 are respectively equipped with lifters 132b, the second clamper 133 and the first clamper 132 can perform clamping operations independently of each other.

The mover 134 moves the first gripper 132 and the second gripper 133 from the unloading position UP to the loading position LP or in the opposite direction, thereby moving the pallet TT in the standby position WP to the loading position LP or in the opposite direction. The pallet TT in the unloading position UP moves to the standby position WP. This mover 134 includes a transfer motor 134a and a transfer belt 134b, and the first clamper 132 and the second clamper 133 are coupled to the transfer belt 134b. Therefore, when the transfer motor 134a operates in the forward or reverse direction, the transfer belt 134b rotates in the forward or reverse direction, and the first and second grippers 132 and 133 coupled to the transfer belt 134b also advance and retreat in the left and right directions. . Of course, when the pallet TT is clamped by the first clamper 132 and the second clamper 133, the pallet TT also moves forward and backward accordingly.

Next, the operation of the transfer device 130 will be described.

First, if the empty pallets TT are respectively located at the standby position WP and the unloading position UP, the first gripper 132 and the second gripper 133 are positioned to the left through the transfer device 130 while gripping the two pallets TT at the same time. The loading position moves in the LP direction. Thus, when the pallet TT in the standby position WP moves to the loading position LP and the pallet TT in the unloading position UP moves to the stop position SP, the first clamper 132 releases the clamping of the pallet TT in the loading position LP, And the second clamper 133 keeps clamping the pallet TT located at the stop position SP. In this state, while the first gripper 132 and the second gripper 133 retreat toward the right side of the loading position LP, the pallet TT gripped by the second gripper 133 moves to the standby position WP. In this way, in the process of moving the tray TT in the stop position SP backward to the standby position WP, when the insert IT is located directly above the cameras 141 to 144, the cameras 141 to 144 capture images of the insert IT. To this end, the transfer device 130 moves and stops the retracted pallet TT while retracting in stages, and the cameras 141 to 144 are controlled by the controller 170 to take pictures at each time point when the pallet TT stops. In this case, the cameras 141 to 144 may be implemented to capture only one insert IT, or may be implemented to capture a plurality of adjacent inserts IT simultaneously. In addition, since the imaging is performed at the time when the tray TT stops, the cameras 141 to 144 only need to be provided as inexpensive area cameras. Of course, if the performance of the cameras 141 to 144 is good, the cameras 141 to 144 may be implemented to shoot while performing continuous retreat, rather than during stepwise retreat of repeated movement and stopping.

Furthermore, according to the present embodiment, two shielding plates 150 are coupled to the substrate BP so as to be spaced upward. In addition, the cameras 141 to 144 are arranged below the shielding plate 150 in a structure combined with the substrate BP. Here, the cameras 141 to 144 may be composed of a camera CAM, a lighting element L, a diffusion plate D, and the like.

Based on the transferer 130 of FIG. 8 as mentioned above, the transfer of the pallet TT and the inspection procedure of the insert IT are expanded as follows: from the unloading position UP through the transfer section TS to the loading position LP, the empty pallet located in the unloading position UP After the TT is moved to the stop position SP, it retreats step by step in the first retreat section R1, and the insert IT is photographed and inspected in the first inspection section TE1 and the second inspection section TE2. In addition, the pallet TT that has been inspected in the first retreat section R1 is further retreated in the second retreat section R2 and transferred to the waiting position WP, and then transferred to the loading position LP. ＜How to check whether the insert is defective＞

Whether or not the insert IT is defective can be confirmed by comparing the numerical information input to the good normal insert IT with the numerical information obtained from the images obtained by the cameras 141 to 144 . This will be described with reference to the flowchart of FIG. 10 and the image of FIG. 11 . 1. Input step (S11)

First, the administrator inputs information about good and normal plug-in IT (the structure of the plug-in, the brightness of each part, etc.). This is realized by the input window shown in FIG. 11 displayed on the screen of the monitor M.

The structural information SD includes dimensional information such as the mechanical form and bending of the insert IT, and is information that can be confirmed from the bottom surface.

In addition, the brightness information BD is information on the brightness in the image obtained from mechanical form, bending, color, material, etc. For example, if the fixed body B is made of a black resin material and the clamping member G is made of a metal-colored metal material, there will obviously be a difference in brightness between the bottom surfaces of the fixed body B and the clamping member G. In addition, due to structural bends, etc., There is also a difference in brightness. Therefore, the numerical values of the brightness values of each part of the image, such as the brightness value of the bottom surface of the fixed body B (which may have a predetermined range) and the brightness value of the bottom surface of the clamping member G (which may have a predetermined range), are input to the controller 170 . This input can be realized using an input device (touch screen, mouse, keyboard, etc.) equipped with the sorting machine 100 . Of course, it is also possible to consider a method of inputting the relative brightness difference between the fixed body B and the clamping member G using a numerical value. In addition, the area of the fixed body B and the area of the clamping member G are set, and their outer shape, length, etc. are coordinates and input as numerical values.

At this time, the input numerical value can be input to have a predetermined range. This is because the brightness may vary even with the same material and color due to lighting, other diffuse reflections, or diffuse reflections from surrounding structures.

The input method may have various implementation forms. For example, as shown in FIG. 11 , the image of the bottom surface of the normal insert IT can be taken, and the information about the bottom surface shape or clip of the fixed body B can be input through the input window displayed on the display M. Numerical values such as the length or inclination of the bottom surface of the holding member G, as well as numerical values regarding the brightness of the fixed body B region or the brightness of the clamping member G region, etc. 2. Shooting steps (S12)

Take a photo of the underside of the normal insert IT. At this time, the administrator adjusts the normal insert IT to be located above the predetermined cameras 141 , 142 , 143 , and 144 among the cameras 141 to 144 . Of course, in the subsequent automation process, as mentioned above, when the tray TT retreats in stages, the cameras 141 to 144 photograph the bottom surface of the insert IT. 3. Steps to set the extraction area (S13)

The administrator selects the extraction area ES by dragging the mouse on the captured image. For example, as shown in FIG. 12 , when taking the normal insert IT as a reference, the extraction area ES may include the entire area of the clamping member G and a partial area of the fixing body B. At this time, the administrator needs to set the extraction area ES so as to exclude parts that may be confused with the brightness value of the clamping member G. More specifically, the frame F portion of the pallet TT is made of the same metal and has the same silver color as the clamping member G. Therefore, if the frame F portion of the pallet TT is included in the extraction area ES, it may cause the computer to fail in the automated inspection process. Create confusion.

For reference, the extraction area is set to complete the information input performed in the above input step (11). Therefore, the first region of interest, the second region of interest, and the third region of interest, which will be described later, can be accurately selected to a degree required for inspection only by the information input performed in the input step (11). area, the extraction area setting step (S13) can be omitted.

Of course, the controller 170 continuously displays the extraction area ES dragged and selected by the administrator through the display M of the sorting machine 100 . Therefore, the administrator can select the accurate extraction area ES while confirming the extraction area ES selected by the administrator through the display M. 4. Test execution steps (S14)

If the administrator determines that the extraction area is set as desired, the test is performed by clicking the test button on the screen of the monitor M. 5. First selection step (S15)

According to the administrator's test implementation command, the controller 170 captures the image again, confirms the extraction area ES from the captured image, and then selects the extraction area ES including A first area of interest A1 of a part of the fixed body B of the insert IT. This first area of interest A1 may be generated based on the physical specifications of the fixed body B, such as the size or brightness of the fixed body B.

In this embodiment, a part of the fixed body B viewed from the first area of interest A1 is the area where the clamping member G is located, and the area where the clamping member G is located is removed in order to confirm the defect of the insert IT. A first part used as a reference for setting the first area of interest A1. However, if there is another part that can serve as a reference in addition to the fixed body B, the other part can also be selected as the first area of interest A1, which will be described later. 6. Second selection step (S16)

Based on the information input in the input step ( S11 ), the controller 170 selects the second area of interest A2 based on a second part different from a partial area of the fixed body B as the first part from the captured image. That is, the second area of interest A2 may be a specific part of the insert IT, and in the present embodiment, the second area of interest A2 is the clamping member G having a brightness value different from that of the fixed body B area.

Of course, depending on the implementation situation, different from the above described order, the first selection step (S15) and the second selection step (S16) can be implemented at the same time, and the second selection step (S16) can also be implemented before the first selection step (S15). .

For reference, since the first area of interest A1 is formed in the shape of a rectangular box based on the local area of the fixed body B having the holding member G, the second area of interest A2 is formed based on the clamping member G. The shape of the rectangular box, so the sides of each rectangular box may not be parallel to each other depending on the defective state of the insert IT.

In addition, as mentioned above, when the shielding plate 150 is not allowed to be provided, the second area of interest A2 on the image may not have obvious contrast with the first area of interest A1 due to diffuse reflection of light. That is, contrast may not exist between the clamping member G and the local area of the fixed body B having the clamping member G. Furthermore, in this case, it may be difficult to select the second area of interest A2. Therefore, as shown in the example of FIG. 14 , a position away from the clamping component G (for example, an area having a matching hole H into which a matching pin of the test socket is inserted) may also be selected as the first area of interest A1. 7. The third selection step (S17)

Further, the center O of the second area of interest A2 is obtained, and a rectangle of a predetermined area with the center O as the center point is selected as the third area of interest A3. This is related to the form in which the clamping member G protrudes downward and obliquely in this embodiment. That is, the third selection step (S17) is used to select the lower end bottom surface area of the clamping member G having the highest brightness value. Therefore, depending on the shape of the clamping member G and the like, the third selection step ( S17 ) may be omitted.

At this time, the third area of interest A3 can be selected based on the rectangular area and brightness value of the bottom area input in advance in the input step (S11) and the center point of the clamping member G obtained through the second area of interest A2. Therefore, the third area of interest A3 has a narrower area than the second area of interest A2. Furthermore, the third area of interest A3 in the form of a rectangular box is set with each side of its rectangle being parallel to each side of the rectangle selected as the first area of interest A1.

Likewise, the controller 170 displays the first area of interest A1 selected in the first selection step (S15), the second area of interest A2 selected in the second selection step (S16), and the third area of interest A2 selected in the third selection step (S16) through the display M. The center O and the selected third area of interest A3 obtained in step (S17) enable the administrator to continuously confirm the test situation. At this time, it is preferable that the third region of interest A3 and the center O can be displayed in a color different from the colors of the extraction region ES, the first region of interest A1 and the second region of interest A2, and it is preferable that the third sense region The area of interest A3 and the center O are also displayed in different colors so that the administrator can easily confirm, 8. Confirmation step (S18)

By comparing the numerical information of the first region of interest A1, the second region of interest A2, and the third region of interest A3 with the numerical information input in the input step (S11), it is confirmed whether the insert IT is defective. At this time, confirmation can be performed by combining the following methods or selectively selecting them.

For example, the confirmation method may be to analyze whether the first area of interest A1 has a different shape or area from the input value based on the information input in the input step ( S11 ). This is a suitable method that can be used to determine whether the insert IT is defective when the fixed body B of the insert IT is out of position or has a shape or area different from the input information due to partial damage or the like.

For example, the confirmation method may be by analyzing the relative position deviation or positional relationship between the first area of interest A1 and the second area of interest A2. This is a suitable method for judging whether the insert IT is defective when it is tilted or twisted, and can be applied when the third region of interest A3 is not selected. Therefore, when the third area of interest A3 is selected as in this embodiment, it can be converted into a confirmation method by analyzing the relative position deviation or positional relationship between the first area of interest A1 and the third area of interest A3. , further, the relative position deviation or positional relationship between the second area of interest A2 and the third area of interest A3 can also be analyzed.

By selecting or mixing the above multiple methods, if it is confirmed whether the insert IT is defective, the controller 170 outputs the result through the display M. Then, the administrator uses this result and the result of his/her own visual confirmation to confirm whether the defect confirmation operation of the plug-in IT is performed normally.

In addition, in the subsequent automated process, as mentioned above, when the tray TT is retreated step by step, the camera 141 to the camera 144 photograph the bottom surface of the insert IT (S12), and then the first selection step (S15) is performed. ), the second selection step (S16), the third selection step (S17) and the confirmation step (S18). However, in the automated process, if a defect is confirmed in the confirmation step (S18), a jam will occur.

For reference, Figure 13 above illustrates a normal insert, while Figure 15 illustrates an example of an insert in a defective state.

Referring to FIG. 15 , a state in which the first area of interest A1 , the second area of interest A2 , and the third area of interest A3 are selected and displayed is shown. Figure 15 illustrates the second area of interest A2 and the third area of interest A3 protruding forward relative to the first area of interest A1, which means that the degree of protrusion of the insert IT is equivalent to the degree of inclination of the insert IT, which belongs to Defect status.

In addition, the above method for confirming whether the interposer IT is defective can be performed in various cases.

First, it can be performed as a preliminary operation before starting the sorting machine 100 to process the electronic components ED. This will be described separately later.

Second, as mentioned above, the shooting step (S12), the selecting step of the first area of interest A1, the selecting step of the second area of interest A2, the selecting step of the third area of interest A3 and the confirming step (S18) can be processed in Electronic components ED are performed continuously or periodically in automated processes.

Third, it can be performed in the case of replacing the electronic components ED to be processed by the sorting machine 100, thereby replacing the tray TT and applying the insert IT having other forms and specifications. ＜Another example of a sorting machine for electronic component testing＞

FIG. 16 is a conceptual plan view of a sorter 200 for electronic component processing according to another example.

In the sorter 200 of FIG. 16 , the tray TT also moves along the circulation path C connecting the loading position LP, the heat soaking chamber SC, the testing chamber TC, the heat removal chamber DC, and the unloading position UP and the loading position LP. Here, the partial paths represented by C1 and C2 are provided to enable testing of electronic components loaded on two pallets TT at one time.

In addition, in the sorting machine 200 of FIG. 16 , it is impossible to ensure a distance by which the pallet TT located between the unloading position UP and the loading position LP can be retreated in steps. Therefore, in the sorting machine 200 of FIG. 16 , there is no room for considering stepwise retreat on the circulation path C.

In addition, since the sorting machine 200 in FIG. 16 lacks space for installing four cameras, only two cameras 241 and 242 are installed, and their positions can be varied.

For example, as shown in FIG. 17 , the cameras 241 and 242 may be disposed between the unloading position UP and the standby position WP. In this case, it is preferable that the sorting machine 200 moves the pallet TT moved from the unloading position UP to the standby position WP in a stepwise manner. Similarly, if the cameras 241 and 242 have good performance, it is also possible to shoot while the tray TT is moving continuously.

For example, as shown in FIG. 18 , the cameras 241 and 242 may be disposed between the standby position WP and the loading position LP.

In addition, due to the narrow space, it is difficult to install a shielding plate in the sorting machine 200 of FIG. 16 . Therefore, as mentioned above, regarding the selection of the first area of interest A1 , the example of FIG. 14 can be adopted.

Additionally, inspection of insert IT defects may be performed during implementation preliminary operations prior to testing operations. Here, the preliminary operation refers to an operation for supplying the empty pallet TT on which no electronic components are loaded to the sorting machine 200, and then operating the sorting machine 200 to observe whether the pallet TT is transferred normally or the like.

Of course, the insert IT can be checked for defects in a preliminary operation, and the insert IT can also be checked for defects during a test operation. However, depending on the embodiment, the insert IT may be inspected for defects only during preliminary operations. This is because when the insert IT is inspected for defects during the test operation, there may be a disadvantage that the processing speed of the sorting machine 200 is slowed down.

If the implementation is to check the defects of the insert IT only in the preliminary operation, as shown in Figure 19, the cameras 241, 242 can also be arranged between the loading position LP and the soaking chamber SC, or as shown in Figure 20, The cameras 241 and 242 may also be arranged between the heat removal chamber DC and the unloading position UP. Of course, the arrangement of the cameras 241 and 242 according to this example can also be the same arrangement in the sorting machine 100 of FIG. 1 .

For reference, in the sorting machine of FIG. 16 , it is preferable that the tray TT is configured to move stepwise in the corresponding section so that appropriate photography can be performed even with low-standard cameras 241 and 242 .

As mentioned above, the present invention has been specifically described by referring to the embodiments of the drawings. However, the above embodiments only illustrate preferred examples of the present invention. Therefore, the present invention should not be understood as being limited to the embodiments. The present invention The scope of rights should be understood as the scope of the patent application and its equivalent concepts.

100: Processor for processing electronic components

111:First Pickup

112:Second Pickup

120: Processor

130,T1,T2,T3:Transfer

131a, 131b: transfer track

132:First holder

132a: Clamping pin

132b: Lifter

133:Second holder

134:Movers

134a:Transfer motor

134b:Transfer belt

141~144:Camera

150:shielding plate

160: Fixer

170:Controller

180:Installer

200: Sorting machine

241, 242:Camera

S11~S18: Steps

LP: loading position

UP: uninstall location

SP: stop position

WP: standby position

FIG. 1 is a conceptual plan view of a sorting machine for electronic component processing according to an embodiment of the present invention.

FIG. 2 is a conceptual extraction diagram for explaining the movement of the tray implemented in the sorting machine of FIG. 1 .

3 to 5 are extracted perspective views of a mounter used in the electronic component testing sorting machine of FIG. 1 .

FIG. 6 is a reference diagram for explaining the structure of the tray.

FIG. 7 is an extracted view of the insert applied to the pallet of FIG. 6 .

FIG. 8 is an extracted perspective view of an extraction transfer device and a structure coupled thereto in the sorting machine of FIG. 1 .

FIG. 9 is an extracted perspective view showing a part of the illustration in FIG. 8 .

FIG. 10 is a flow chart of a method of testing insert defects implemented in the sorter of FIG. 1 .

11 to 15 are reference diagrams for explaining the flowchart of FIG. 10 .

16 to 20 are reference diagrams for explaining another embodiment of the present invention implemented in a sorting machine for electronic component processing that is different from that in FIG. 1 .

Domestic storage information (please note in order of storage institution, date and number) without Overseas storage information (please note in order of storage country, institution, date, and number) without

100: Processor for processing electronic components

111:First Pickup

112:Second Pickup

120: Processor

130,T1,T2,T3,T4:Transfer

141~144:Camera

150:shielding plate

160: Fixer

170:Controller

180:Installer

BT: buffer tray

CT:Customer pallet

LP: loading position

UP: uninstall location

SP: stop position

WP: standby position

M: monitor

S: interval

SR: Supply Recycling Section

TP: test position

TT: pallet

Claims (11)

A sorting machine for processing electronic components, including: a picker that loads electronic components to a tray located in a loading position or unloads electronic components from a tray located in an unloading position; and a handler that loads the tray with electronic components through the picker When arriving at the processing position, the electronic components loaded on the pallet are processed; a plurality of transfers make the pallet circulate on a circulation path that is connected to the loading position again after passing through the loading position, the processing position and the unloading position. ; a camera arranged to photograph an insert of a pallet not loaded with electronic components on the circulation path; and a controller controlling the picker, the processor, the plurality of transfers, and the camera by placing By comparing the image captured by the camera with the information of a good and normal insert, it is confirmed whether the insert is defective. The sorting machine for processing electronic components according to claim 1, wherein the camera is arranged to photograph the insert of a tray not loaded with electronic components between the loading position and the unloading position. The sorting machine for processing electronic components according to claim 2, wherein there is a standby position where a tray with no electronic components loaded is located between the loading position and the unloading position, and the plurality of transferers is located at the The pallet passing through the unloading position The specific transfer device that moves the standby position toward the loading position includes: a first clamper that clamps the pallet located in the standby position or releases the clamping of the pallet; and a second clamper that clamps the pallet located in the standby position. The pallet in the unloading position or releases the clamping of the pallet and performs a clamping operation independently of the first clamper; and a mover by causing the first clamper or the second clamper to The holder moves from the unloading position to the loading position or in the opposite direction, so that the pallet located in the standby position moves to the loading position or the pallet located in the unloading position moves to the standby position. Move, wherein after the controller simultaneously clamps the pallet in the standby position and the pallet in the unloading position through the first clamper and the second clamper, when the pallet in the standby position moves to the The loading position, when the pallet in the unloading position moves to the stop position between the loading position and the standby position, the clamping of the first clamper is released, and then the pallet in the stop position is The pallet moves to the standby position, and the transfer device and the camera are controlled to cause the camera to photograph the insert of the pallet in the process of moving from the stop position to the standby position. The sorting machine for processing electronic components according to claim 2, wherein there is a standby position where a tray with no electronic components loaded is located between the loading position and the unloading position, The camera is arranged between the unloading position and the standby position or between the standby position and the loading position. The sorting machine for processing electronic components according to claim 1, further comprising: a heat equalizing chamber for applying thermal stress to the electronic components loaded on the pallet from the loading position; and a heat removal chamber for unloading the pallet to the Before the position is moved, the thermal stress of the electronic components loaded on the pallet is removed; wherein the camera is arranged between the unloading position and the heat soaking chamber or between the heat removal chamber and the unloading position . The sorting machine for processing electronic components according to claim 1, further comprising: a shielding plate that blocks the background when the camera is used to photograph the insert of the tray, wherein the camera is located below the tray, and the shielding plate is located on the above the tray. A method for confirming whether an insert for loading electronic components is defective, including: an input step of inputting information about a good and normal insert; a photographing step of photographing the insert; and a first selection step based on a first part of the insert A first region of interest is selected from the image captured in said capturing step; a second selection step is based on a second location of the insert that is different from the first location. selecting a second region of interest from the image captured in the photographing step; and a confirming step based on the first region of interest selected in the first selection step and the second region of interest selected in the second selection step. The information obtained in the second region of interest is used to confirm whether the insert is defective. A method for confirming whether an insert for loading electronic components is defective, including: an input step of inputting information about a good and normal insert; a photographing step of photographing the insert; and a first selection step based on a first part of the insert A first region of interest is selected from the image captured in the photographing step; a second selection step selects a second region of interest from the image captured in the photographing step based on a second portion of the insert that is different from the first portion. region of interest; the third selection step is to confirm the center of the second region of interest selected in the second selection step, and select a third region of interest with the confirmed center as the center point; the confirmation step is to select the region of interest by The relative position deviation of the first region of interest and the third region of interest is compared to determine whether there is a defect in the insert. The method of confirming whether there is a defect in an electronic component loading insert according to claim 8, wherein the first region of interest and the third region of interest are selected as In the form of a rectangular box, the rectangular side of the third region of interest is parallel to the rectangular side corresponding to the first region of interest. The method of confirming whether an electronic component loading insert is defective according to claim 7 or claim 8, wherein the information input in the input step is the structure of the insert and numerical information on the brightness of each part. The method of confirming whether there is a defect in an electronic component loading insert according to claim 7 or claim 8, wherein the second area of interest has different brightness from the remaining areas of the insert.