KR20190117955A - Bar code recognition device of handler for processing electronic component - Google Patents

Abstract

The present invention relates to a barcode recognition device of a handler for use in electronic component processing. According to the present invention, the barcode recognition device provides a pressurizing device for a test handler supporting a test of a semiconductor element. The barcode recognition device comprises: at least one barcode recognizer for recognizing barcodes in electronic components moving along a predetermined movement path; and a rotator for rotating the barcode recognizer 180 degrees forward and backward so that the barcode recognizer recognizes or selectively recognizes all barcodes on one side and the other side of the electronic component. According to the present invention, the enlargement of equipment and the increase in the production costs are minimized while individually managing the electronic components.

Description

Bar code recognition device for handler for electronic component processing {BAR CODE RECOGNITION DEVICE OF HANDLER FOR PROCESSING ELECTRONIC COMPONENT}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a barcode recognition device applied to a handler for handling electronic components to recognize barcodes printed or attached to the electronic components.

In the past, handlers managed information about electronic components on a LOT basis.

In most cases, the handler is run once based on the volume of one lot to prevent the different lots from mixing. By the way, large electronic components such as a module ram loaded with dozens of electronic components are produced in a specialized way in the final product, so the quantity of one lot is small. This requires the handler to be run multiple times in order to handle multiple lot quantities, which causes the handler to run down.

Therefore, in recent years, barcodes of electronic components are recognized to manage the history (production plant or production line, lot information, etc.) and test results of the electronic components separately. To this end, some handlers have a barcode reader capable of reading barcodes. In such a case, the handler is provided with a barcode reader to recognize a barcode located on a specific surface of the electronic components, and the barcode reader is placed on the moving path of the electronic component in consideration of the efficiency of the work.

However, in the case of electronic parts specialized for the final product, the case where the position of the barcode is located on the opposite side cannot be excluded. In this case, a separate handler for recognizing barcodes on the opposite side must be used. This is a cost burden for the consumer of the handler and is undesirable in terms of space utilization. And even if such a handler can handle the quantities of several lots, the operation rate is lowered because it is impossible to process lots with different positions of the barcode by one operation of the handler.

Therefore, the applicant of the present invention is a bar code recognizer through the Republic of Korea Patent Publication No. 10-2017-0108703 (hereinafter referred to as 'prior art 1') and Application No. 10-2017-0040270 (hereinafter referred to as 'prior art 2') We have proposed techniques to selectively read both barcodes on both sides of the part.

In general, the movement of the electronic components in the handler is made by the picking device or by the moving shuttle. Prior art 1 shows an example of reading a barcode of an electronic component held in a picking device, and prior art 2 shows an example of reading a barcode of an electronic component loaded in a mobile shuttle.

Prior art 1 includes a barcode recognizer twice as many as the number of electronic components held by the picking device, so as to selectively read all barcodes that can be selectively positioned on both sides of the electronic component. In this case, the distance between the electronic components held by the picking device must be wide enough so that the gap between the individual pickers constituting the picking device must be sufficiently secured. This is a factor that has to increase the overall size of the picking device or to have a separate drive means for adjusting the interval between the individual pickers and to secure the space occupancy of the picking device in the equipment. In this case, due to the size of the picking device, it is accompanied by an increase in the production cost due to the hassle of design for solving the interference problem of the movement path, the increase of the equipment itself, the provision of the driving means, and the increase in the number of barcode readers. Of course, the prior art 1 also provides an example of minimizing the distance between individual pickers by using a reflector, but this also has a limit in reducing the size of the picking device, the burden of increased production cost due to the increase in the number of cameras I have it.

On the other hand, the prior art 2 by rotating the bar code reader a predetermined angle to be able to selectively read all the bar code that can be selectively positioned on both sides of the electronic component. According to this prior art 2, the reading direction of the bar code recognizer is inclined so that the decoding rate may be slightly lowered, so that an expensive bar code recognizer is required, and all of them are used regardless of the bar code attachment position (whether the bar code is attached to the top or the bottom). In order to be able to read it, it is necessary to secure enough space between electronic components. As a result, many of the same problems as the prior art 1 are shared.

It is an object of the present invention to further improve the above-described prior arts 1 and 2 to provide a technology related to a barcode recognition device that can minimize the increase of equipment or increase the production cost and increase the recognition rate thereof.

Furthermore, it is an object of the present invention to provide a technique that can recognize all of the attachment positions of the barcodes (left or right or both sides), and even if the heights of the barcodes are different.

Bar code recognition device of the electronic component test handler according to the first aspect of the present invention comprises at least one bar code reader for recognizing a bar code in the electronic component moving along a certain movement path; And a rotator rotating the barcode recognizer 180 degrees forward and backward to enable the barcode recognizer to recognize or selectively recognize all of the barcodes on one side and the other side of the electronic component. It includes.

The at least one bar code reader is installed, the rotating plate rotated by the rotor; And a base plate on which the rotator is installed; Further comprising, the rotating plate and the base plate are spaced apart from each other.

The rotating plate is provided with a locking end, the base plate is provided with a stopper, and the rotational degree of the rotating plate is set by engaging the locking end with the stopper when the rotating plate rotates.

A calibrator for calibrating a rotation position of the at least one barcode reader when the at least one barcode reader is rotated by the rotator; It may further include.

A height adjuster for adjusting a height of the at least one barcode recognizer; It may further include.

When the rotator rotates the at least one barcode reader, a positional movement of the picking device for moving the electronic component to correspond to the electronic component and the barcode reader is involved.

There are a plurality of barcode readers, and the corresponding order of the plurality of barcode readers is changed when the rotor rotates the plurality of barcode readers.

When the rotator rotates the at least one barcode reader, the rotator may be uniaxially rotated or the rotator may be horizontally moved to correspond to the electronic component and the barcode reader.

According to the present invention, it is possible to minimize the increase of equipment or increase the production cost and increase the barcode recognition rate.

1 is a partially exploded perspective view of a barcode recognition device of an electronic component processing handler according to an embodiment of the present invention.
2 is a reference view for explaining the configuration of the rotating plate and the base plate applied to the bar code recognition device of FIG.
3 is an excerpt view of a rotator applied to the barcode recognition device of FIG. 1.
Figure 4 is an excerpt of the excerpt of the installation member portion applied to the rotator of FIG.
FIG. 5 is an excerpt view of a calibrator applied to the barcode recognition device of FIG. 1.
FIG. 6 is a reference diagram for explaining a correspondence relationship and a corresponding procedure of an electronic component and a barcode recognizer. FIG.
FIG. 7 is a reference diagram according to a hardware implementation of a change of a corresponding order of an electronic component and a barcode recognizer.
FIG. 8 is a reference diagram for explaining a work process that is performed when programmatically controlling a correspondence relation and an order of correspondence between an electronic component and a barcode reader according to rotation of a barcode reader.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments according to the present invention will be described with reference to the accompanying drawings, for the sake of brevity of description, descriptions of overlapping or substantially identical configurations are omitted or compressed where possible.

<Description of the configuration of the barcode recognition device>

1 is a partially exploded perspective view of a barcode recognition device (hereinafter, abbreviated as 'barcode recognition device') of an electronic component processing handler according to the present invention.

Bar code recognition device 100 of Figure 1 is four bar code reader 110, height adjuster 120 and reflector 130 and mounting plate 140, rotating plate 150, rotating machine 160, base plate 170 And a calibrator 180.

 Four barcode readers 110 are provided to recognize barcodes in the electronic component D moving along a predetermined movement path by the picking device. In this embodiment, the camera is considered as the barcode reader 110, but according to the implementation may be provided with a conventional barcode reader. The barcode reader 110 may also check whether the electronic component D is reversely inserted, and when the camera is provided with a camera, it may be possible to check whether or not a foreign material is attached or whether the barcode is defective.

For reference, the bar code may contain various information such as production history and test history, and this information may be transmitted to the PC of the tester or handler, so that the information may be referred to for the control of equipment required for handling or testing the electronic component (D). .

The height adjuster 120 is provided to increase the barcode recognition rate by adjusting the height of the barcode recognizer 110. In this embodiment, the long regulator is formed in the height adjuster 120 in the vertical direction, and the height of the barcode recognizer 110 can be manually adjusted using the mounting bolt B, but the barcode recognizer 110 is elevated. Any structure can be considered as long as possible, and the automatic adjustment using a motor or the like can also be considered.

The reflector 130 is provided to send the image of the barcode in the electronic component D to the barcode recognizer 110 below the barrel MT by bending the light 90 degrees. That is, when the picking device lowers the electronic parts D, the electronic parts D held by the picking device are disposed at least between the reflecting mirrors 130 with the barcode therebetween. The image of the barcode that comes through the reflectors 130 of the will be read.

The installation plate 140 is provided to install the reflector 130 and the barcode reader 110 by placing the barrel MT.

Rotating plate 150 is provided for placing the mounting plate 140 and the barrel (MT) ultimately rotatably install the reflector 130 and the barcode reader 110. To this end, the installation plate 140 and the rotating plate 150 are integrally coupled to be spaced apart by a predetermined height through the gap retaining rod GR. Therefore, when the rotating plate 150 rotates, the mounting plate 140 also rotates by the same angle, and the reflector 130 and the barcode reader 110 installed on the mounting plate 140 also rotate based on the rotation center point of the rotating plate 150. Done. By applying the rotating plate 150, a plurality of barcode readers 110 may be rotated together by one rotating unit 160.

And the rotating plate 150 is provided with two engaging ends 151 on both sides in order to allow the rotation degree of the rotating plate 150 to be set to the amount of rotation of 180 degrees, as shown in the excerpt of FIG. It also has two calibration holes 152a and 152b for the purpose. In the present embodiment, the locking end 151 is provided as a bearing, and the locking end 151 and the calibration holes 152a and 152b will be described later.

The rotor 160 is provided to rotate the rotating plate 150 by 180 degrees. The barcode reader 110 installed on the rotary plate 150 and ultimately the rotary plate 150 by the rotor 160 is rotated 180 degrees in the forward and reverse directions based on the rotation center point of the rotary plate 150, whereby the barcode reader 110 is rotated. The barcodes on one side and the other side of the electronic component D can be recognized or selectively recognized. To this end, the rotor 160 has a driving cylinder 161, a rotating belt 162, a coupling block 163, a first pulley 164a, a second pulley 164b, and a rotating member as shown in the extract of FIG. 3. 165, a reference member 166, an adjustment member 167, and an installation member 168.

The driving cylinder 161 provides a driving force necessary for the rotation of the rotating plate 150.

The rotating belt 162 transmits the linear driving force of the driving cylinder 161 to the rotational force of the first pulley 164a and the second pulley 164b.

The coupling block 163 couples the forward and backward rods FB of the driving cylinder 161 to the rotating belt 162. Therefore, when the driving cylinder 161 operates, the rotating belt 162 rotates using both pulleys 164a and 164b as rotation turning points.

The first pulley 164a and the second pulley 164b are provided to install the rotating belt 162. The first pulley 164a and the second pulley 164b provide rotation turning points of the rotating belt 162 and rotate in conjunction with the rotation of the rotating belt 162.

The rotating member 165 is coupled to the second pulley 164b to rotate together with the rotation of the second pulley 164b, and the rotating plate 150 is coupled to the rotating member 165 to rotate the rotating member 165. In conjunction with the rotation of the rotating plate 150 is rotated. Due to this structure, when the driving cylinder 161 is operated, the rotating belt 162 rotates with both pulleys 164a and 164b as rotation turning points, and at this time, the rotating member is linked with the rotation of the second pulley 164b. As the 165 rotates, the rotating plate 150 rotates together.

Reference member 166 is coupled to the base plate 170 is provided to adjust the position of the installation member 168.

The adjusting member 167 is coupled to and passed through the reference member 166 in a screwing manner so that its end touches the installation member 168. Accordingly, when the adjustment member 167 is rotated, the adjustment member 167 is moved by screwing or unwinding the screw, and the installation member 168 moves in conjunction with the adjustment member 168 to adjust the position of the installation member 168.

The installation member 168 is provided to install the first pulley 164a. The installation member 168 is movably coupled to the base plate 170 as in the excerpt of FIG. To this end, the installation member 168 has a long long hole (LH) is formed in the movement direction, the coupling bolt (JB) has a structure that is coupled to the base plate 170 through the long hole (LH) installation member 168 ) Can be moved somewhat. And the installation member 168 is to be moved while being guided by the moving groove (MG) formed in the base plate 170 by the trench.

The reason for allowing the position of the installation member 168 to be varied is to maintain the tension of the rotating belt 162. Rotating belt 162 is a tension fluctuations due to the weight or use of the combined object or the use of seasonal temperature, in this case, it is difficult to precisely rotate the rotating plate 150 by the rotating belt 162. Therefore, in the present embodiment, by rotating the installation member 168 by using the adjustment member 167 to maintain the tension of the rotating belt 162 at an appropriate level, the rotation of the rotating plate 150 is precisely made.

For reference, in the present embodiment, the rotary plate 150 is rotated using the drive cylinder 161 to reduce the production cost, but according to the implementation will be simply implemented by a forward and reverse rotation motor.

On the other hand, the rotating plate 160 is installed on the base plate 170. The base plate 170 is provided with a stopper 171 to which the above-described locking end 151 can be caught, as referred to in FIG. 2. Accordingly, when the rotating plate 150 is rotated, the locking end 151 provided as a bearing rides on the stopper 171 so that the rotational degree of the rotating plate 150 may be set to have only about 180 degrees of rotation amount. will be. The base plate 170 and the rotating plate 150 are spaced apart from each other by a predetermined interval G so that the rotation of the rotating plate 150 is smoothly performed.

The calibrator 180 is provided to calibrate the rotation position of the barcode recognizer 110 when the barcode recognizer 110 rotates. Of course, the rotation amount of the rotating plate 150 and the barcode reader 110 can be controlled relatively accurately by the above-mentioned locking end 151 and the stopper 171, but in this embodiment more precise calibration after the 180-degree rotation is completed It further includes a calibrator 180 for. To this end, the calibrator 180 includes a calibration pin 181 and a calibration cylinder 182 as shown in the excerpt of FIG. 54.

The calibration pin 181 is inserted into or removed from the calibration holes 152a and 152b of the rotating plate 150 to correct the rotation position of the rotating plate 150 or to make the rotating plate 150 rotatable.

The calibration cylinder 182 lifts the calibration pin 181 so that the calibration pin 181 is inserted into or removed from the calibration holes 152a and 152b. That is, according to which side of the electronic component the bar code is provided, the calibration pin 181 is inserted into the calibration hole of 152a or the calibration hole of 152b according to the rotational state of the rotating plate 150, thereby aligning according to the situation. This becomes possible.

Therefore, in the present embodiment, the rotation positions of the rotating plate 150 and the barcode reader 110 are firstly corrected by the locking end 151 and the stopper 171, and secondly precisely corrected by the calibrator 180. It is supposed to be.

<Description of the operation of the barcode recognition device>

1. First operation example

If there is a bar code on one side of the electronic component (D), the operation of the handler is made in a state that the reflector 130 is opposed to one side of the electronic component (D). In this state, when the barcode on the other side of the electronic component D is changed due to the change of the type of the electronic component D to be processed, the rotating unit 160 operates to rotate the plate 150 and the barcode reader 110. The back is rotated 180 degrees, and the position of the rotating plate 150 is precisely corrected by the straightener 180. The position of the barcode reader 110 is also corrected by the position calibration of the rotating plate 150. In the state where the position of the rotating plate 150 is corrected, the barcode is processed for the electronic component D on the other side.

2. Second operation example

This operation example is applied when both barcodes are present on both sides of the electronic component D, and both barcodes are required to be read. First, the picking apparatus allows the reflecting mirror 130 to face one side of the electronic component D, and then raises the electronic component D when recognition of the barcode on one side is completed. In addition, the barcode reader 110 rotates 180 degrees while the electronic component D is raised, and the picking device lowers the electronic component so that the reflector 130 faces the other side of the electronic component D. The barcode on the side is recognized.

<Additional considerations>

1. Relationship with Picking Device

In general, the picking apparatus has a plurality of pickers to move the plurality of electronic components (D). Each picker grips one electronic component D, respectively. At this time, as shown in the reference diagram of FIG. 6, when the barcode recognizers 110 rotate about the central axis O to become the state of FIG. 6 from (a) of FIG. It becomes impossible to recognize the barcode C for D). Therefore, the barcode readers 110 should be in the state of FIG. 6C so that the barcode readers 110 may face the barcode C of the electronic component D, respectively. Two technologies can be considered as a technique for properly switching from the state (a) of FIG. 6 to the state (c) of FIG.

First, a technique of rotating the bar code recognizers 110 or rotating the rotor 160 horizontally may be considered.

Second, a technique of moving the picking device PA through programmatic movement control may be considered by using the mobility basically provided to the picking device PA.

Depending on the designer, the first technique or the second technique may be selectively applied.

However, when the barcode readers 110 are uniaxially rotated or the rotator 160 is horizontally moved, the horizontal movement of the picking device PA does not need to be considered, but the uniaxial rotation of the barcode reader 110 or the horizontal of the rotator 160 may be considered. More space for movement is required and mechanically complex. Therefore, by utilizing the mobility basically provided to the picking device PA, the movement of the picking device PA is accompanied by a horizontal movement of the picking device PA (see arrow 'K') in the state of FIG. It may be more preferable to allow the transition to the state (c) of 6.

2. Correspondence relationship between barcode reader and electronic parts

Meanwhile, referring to (a) and (c) of FIG. 6, the correspondence relation between the barcode readers 110 and the electronic parts D in the state (a) of FIG. 6 (①-ⓐ, ②- Ⓑ, ③-ⓒ, ④-ⓓ) and the correspondence order (①-ⓓ, ②-ⓒ, ③-ⓑ, ④- of the barcode readers 110 and the electronic parts D in the state (c) of FIG. Ⓐ) are different.

That is, the correspondence relationship between the barcode readers 110 and the electronic components D in the first mode, which is the basic mode without rotation, may correspond to the barcode readers 110 and electronics in the second mode in which the barcode readers 110 are rotated. The corresponding relationship between the parts D is changed, which indicates that the order of correspondence between the barcode readers 110 and the electronic parts D is reversed in both modes.

Thus by correcting that the order of the barcode readers 110 has changed in the second mode. The electronic parts of ①, ②, ③, and ④ need to be changed in the order of the barcode reader 110 of ⓓ, ⓒ, ⓑ, ⓐ. Two techniques can be considered as a technique for changing the order.

First, as shown in FIGS. 7 (a) and 7 (b), the order of the terminals T which are in electrical contact with the barcode recognizer 110 is given, so that the sequence of the barcode recognizers 110 even when the barcode recognizers 110 rotate. Is a technique that can be maintained.

The second is a technique to programmatically change the order of the barcode recognizers 110 in the rotational state.

In this regard, a technique for programmatically changing the order of the barcode recognizers 110 may be more preferably recommended in consideration of the inconvenience of mechanical implementation.

FIG. 8 shows the flow of the above-described relationship between the barcode readers 110 and the picking device PA or the correspondence between electronic components.

First, is the manager of the handler visually observing the electronic parts D loaded on the customer tray, and is the position where the barcode C is provided? Or if it is another surface? <S800>. When the position where the barcode C is provided is one side, the handler should operate as the first mode, which is a basic mode in which the barcode recognizers 110 are not rotated. Therefore, the manager selects to operate in the first mode, which is the basic mode, through the input unit provided in the handler, and then inserts the customer tray loaded with the electronic component D into the loading stacker, and executes the operation. Let's do it. Accordingly, the picking device PA is operated to grasp and move the electronic component D in the customer tray, thereby performing the recognition operation <S814> of the barcode C. FIG.

On the other hand, when the location of the barcode (C) is the other surface, the handler should operate as a second mode in which the barcode readers 110 are rotated 180 degrees. Therefore, the manager selects to operate in the second mode, which is the change mode, through the input unit provided in the handler <S821>. In this case, the handler rotates the barcode reader 110 by 180 degrees by rotating the rotating plate 150, and changes the corresponding order of the barcode readers 110 corresponding to the electronic components D. Then, the manager injects the customer tray loaded with the electronic component D into the loading stacker <S823>, and executes the operation. Accordingly, the picking device PA is operated to grip and move the electronic parts D in the customer tray, and to move the picking device PA horizontally so that the electronic parts D correspond to the barcode readers 110, respectively. Accompanying it, the recognition operation <S824> of the barcode C is performed.

Of course, when the barcode (C) is attached to both sides of the electronic component (D), and both the barcodes (C) should be read, the first mode and the first mode may be changed every time the barcode (C) is recognized. 2 mode switching is required.

Since the barcode recognition apparatus 100 as in the above descriptions must read the barcode C while the picking device PA having a plurality of pickers moves the electronic component, the handler recognizes the barcode. 100 and the picking device PA, and if a program control is required, the corresponding order of the electronic parts D and the barcode recognizers 110 or the barcode recognizers 110 through a control unit equipped with a dedicated program. Positioning of the picking device PA should be accompanied by the rotation of the wheels.

As described above, the detailed description of the present invention has been made by the embodiments with reference to the accompanying drawings, but since the above-described embodiments have only been described with reference to the preferred examples of the present invention, the present invention is limited to the above embodiments only. It should not be understood to be limited, and the scope of the present invention should be understood as the following claims and their equivalents.

100: Barcode recognition device of the handler for electronic component processing
110: barcode reader
120: height adjuster
150: rotating plate
151: locking step 152: correction hole
160: Rotator
170: base plate
171: stopper
180: braces

Claims (8)

At least one barcode recognizer for recognizing barcode in electronic components moving along a predetermined movement path; And
A rotator rotating the barcode recognizer 180 degrees forward and backward to allow the barcode recognizer to recognize or selectively recognize all barcodes on one side and the other side of the electronic component; Containing
Bar code recognition device of handler for electronic component processing. According to claim 1,
The at least one bar code reader is installed, the rotating plate rotated by the rotor; And
A base plate on which the rotator is installed; More,
The rotating plate and the base plate are spaced apart from each other
Bar code recognition device of handler for electronic component processing. According to claim 1,
The at least one bar code reader is installed, the rotating plate rotated by the rotor; And
A base plate on which the rotator is installed; More,
The rotating plate is provided with a locking end,
The base plate is provided with a stopper,
The degree of rotation of the rotating plate is set by engaging the stopper with the stopper when rotating the rotating plate.
Bar code recognition device of handler for electronic component processing. According to claim 1,
A calibrator for calibrating a rotation position of the at least one barcode reader when the at least one barcode reader is rotated by the rotator; Containing more
Bar code recognition device of handler for electronic component processing. According to claim 1,
A height adjuster for adjusting a height of the at least one barcode recognizer; Containing more
Bar code recognition device of handler for electronic component processing. According to claim 1,
When the rotator rotates the at least one barcode reader, the position of the picking device for moving the electronic component to correspond to the electronic component and the barcode reader is accompanied.
Bar code recognition device of handler for electronic component processing. According to claim 1,
The barcode reader is a plurality,
When the rotator rotates the plurality of bar code readers to change the corresponding order of the plurality of bar code readers
Bar code recognition device of handler for electronic component processing. According to claim 1,
When the rotator rotates the at least one barcode reader, the rotator rotates the rotor or horizontally rotates the rotator so that the electronic component and the barcode reader correspond.
Bar code recognition device of handler for electronic component processing.

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