JP2007027652A - Inspecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspecting device capable of accurately reading bar code information provided to an object to be inspected through a transparent plate after the object is fitted to a jig. <P>SOLUTION: The inspecting device is equipped with a mount where the object which has the bar code is mounted; the transparent plate which covers the top surface of the object mounted on the mount section; a bar code reader for reading the information of the bar code; and a bar code reader driving means which supports and moves the bar code reader to a position opposed to the bar code, and reads the information of the bar code through the transparent plate. An inspector inspects the object, and a processor processes an inspection result of the inspection. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an inspection apparatus having a barcode reader that reads a barcode provided on an object to be inspected.

  2. Description of the Related Art Conventionally, a substrate inspection apparatus as this type of inspection apparatus is used for managing history of inspection data, so that barcode information provided on a substrate is subjected to a separate process before placing the substrate on the placement portion of the inspection apparatus. The worker is reading with a barcode reader. In this reading, the barcode information is read by bringing the barcode reader closer to the barcode on the substrate as the inspection object attached to the fixed position of the jig. Further, as described in Patent Document 1, there is a technique in which a barcode reader is attached to the lower surface of the upper jig, and the barcode reader is read after being brought close to the substrate.

Japanese Utility Model Publication No. 5-052958

  Since the conventional inspection apparatus is configured as described above, it is necessary to read the barcode information in a separate process from the inspection, and there is a problem that work efficiency is poor. Further, since the barcode information is read before the substrate is placed on the inspection apparatus, there is a problem that a substrate different from the substrate from which the barcode is read is erroneously placed on the inspection apparatus.

  In addition, as described in Patent Document 1, in a case where a substrate is brought close to a barcode reader and read close to barcode information provided on the substrate, the barcode reader and an electronic component on the substrate interfere with each other. The bar code reader cannot be attached to a jig. In addition, when a different substrate is placed and contacted with a probe pin, there is a problem that the probe pin or the support hits an electronic component and one of them is damaged. Furthermore, since the barcode reader is attached to a fixed position of the jig, there is a problem that the barcode position on the substrate is also limited.

  The present invention has been made to solve the above-described problems. An inspection apparatus capable of accurately reading bar code information provided on an inspection object through a transparent plate after the inspection object is attached to a jig. The purpose is to provide.

  The inspection apparatus according to the present invention provides a placement unit for placing an inspection object having a barcode, a transparent plate covering an upper surface of the inspection object placed on the placement portion, and information on the barcode. A barcode reader for reading through a transparent plate, a barcode reader driving means for supporting the barcode reader and moving the barcode reader to a position facing the barcode, and processing information read by the barcode reader; A determination processing unit that determines whether the inspection object placed on the placement unit is an inspection object, and an inspection object placed on the placement unit from the determination processing unit is an inspection object. And an inspection unit that performs an inspection upon receiving the determination result.

According to this invention, since the barcode information provided on the inspection object is read through the transparent plate after the inspection object is attached to the inspection apparatus, the work efficiency is high, and a substrate different from the substrate from which the barcode is read is obtained. It is possible to reliably avoid erroneous placement on the inspection apparatus. Further, the barcode reader is moved to a position facing the barcode by the barcode reader driving means, and the barcode information is read through the transparent plate, so that the barcode information can be read accurately. is there.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a side view showing an inspection apparatus according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a plan view taken along the line AA of FIG. 1, and FIG. 4 is a perspective view of an XY moving mechanism. The apparatus main body 100 has a configuration in which the lower base 2 is placed on the base 1 and the upper base 3 is attached to the upper ends of the columns 101 standing at the four corners of the base 1. A press cylinder 12 is attached to the lower surface of the base 1 located at the center of the lower base 2, and the lower base 2 is attached to a sliding shaft 12 a of the press cylinder 12 passing through the base 1.

  A lower jig 4 is attached to the lower base 2 at intervals, and a predetermined number of probe pins 10 are provided at predetermined positions on the lower jig 4. Further, positioning pins 9 for setting the substrate 6 as an object to be inspected at the time of energization inspection are provided at predetermined locations (for example, four corners) around the lower jig 4.

  A cutout hole 16 having substantially the same shape as the substrate 6 is formed in the central portion of the upper base 3. A support rail 3 a for exchanging and supporting an upper jig 5 (for example, a transparent acrylic plate) having a size covering the notch 16 is provided on the lower surface of the upper base 3. Support rods 8 are provided downward at the peripheral portions (for example, at the four corners). In addition, a predetermined number of support pins 11 for pressing down the substrate 6 are provided on the lower surface of the upper jig 5. Therefore, the upper jig 5 is replaced and installed in accordance with the inspection target substrate.

  An XY moving mechanism 17 is provided on the upper surface of the upper base 3. The XY moving mechanism 17 includes an X-axis slider 19 provided in parallel on both sides of the upper surface of the upper base 3, and a portal-shaped Y-axis slider 18 that moves in the X-axis direction along the X-axis slider 19. The ends of both legs of the Y-axis slider 18 are engaged with the guide grooves 19 a of the X-axis slider 19 and fixed with X-axis fixing screws 21.

  The base of the camera 13 is fixed to the guide groove 18a of the Y-axis slider 18 with a Y-axis fixing screw 20 so that the camera 13 moves in the Y-axis direction, and the illumination device 14 is integrally provided at the front of the camera 13. It has been. A deflection filter 15 is provided on each of the front surfaces of the camera 13 and the illumination device 14.

  A barcode reader 22 that reads information on the barcode 7 on the substrate 6 is connected between the camera 13 and the processing device 23. In addition, the lead wires of the plurality of probe pins 10 are connected together and connected to the processing device 23 to the measuring unit 24 that processes the inspection signal. The electromagnetic valve 25 controls the press cylinder 12 in response to a processing signal from the processing device 25, and is provided integrally with the press cylinder.

Next, the operation will be described.
A substrate 6 as an object to be inspected is positioned and fixed by positioning pins 9 and set on the lower jig 4. The camera 13 is moved in the X-axis direction and the Y-axis direction by the XY moving mechanism 17 so as to oppose the barcode 7 marked, printed or pasted on the substrate 6 by the laser. In this case, the camera 13 is moved manually by the operator and is not shown in the figure, but the motor 13 is driven by a drive signal from the processing device 23 and the camera 13 is moved by the power. You can also

  In this way, the information of the barcode 7 is read through the notch hole 16 of the upper base 3 and the transparent acrylic 5 as the upper jig by the camera 13 after illuminating with the illumination device 14, and the read barcode The information is read by the barcode reader 22 and supplied to the processing device 23. When the processing device 23 processes the supplied barcode information and determines that the substrate 6 set on the lower jig 4 is a substrate to be inspected, the electromagnetic valve 25 is driven, and the press cylinder 12 is operated by this driving. The lower base 2 is raised to the support bar 8. As a result, the lower jig 4 fixed to the lower base 2 is also raised, and the substrate 6 is pressed into the support pins 11 of the upper jig 5, and the electrodes on the substrate and the probe pins 10 come into contact with each other to thereby measure the measurement unit 24. The inspection is started. The inspection result by the measuring unit 24 is supplied to the processing device 23, and the history of search data is managed together with the barcode information.

  Since this embodiment is configured as described above, with the substrate 6 as the inspection object set at the inspection position, the notch hole 16 of the upper base 3 and the transparent acrylic 5 as the upper jig are passed through. The barcode 7 is read by the camera 13. Normally, when the barcode 7 is read with the camera 13 in focus, the barcode is made up of a set of points as shown in FIG. There is a risk of reading.

  However, by reading the barcode information through the transparent acrylic 5 as the upper jig as described above, the reflected light from the barcode is refracted in the transparent acrylic 5 and enters the camera 13, and the camera is in a kind of defocused state. 13 is read. For this reason, a bar code consisting of a set of points is read linearly as shown in FIG. 5B, and bar code information can be read accurately.

  Further, by reading the barcode with the substrate 6 as the inspection object set at the inspection position, the work efficiency is improved and the apparatus can be downsized. Moreover, since the set state of the substrate 6 can be visually confirmed through the notch hole 16 of the upper base 3 and the transparent acrylic 5 as the upper jig, a setting error of the substrate 6 can be prevented.

  Further, since the camera 13 and the illumination device 14 can be moved along the Y-axis slider 18 and the X-axis slider 19 of the XY moving mechanism 17, they are moved in advance to a position facing the barcode 7 and fixed to the Y-axis. By fixing with the screw 20 and the X-axis fixing screw 21, it is possible to read the barcode 7 at an arbitrary position on the substrate 6, and there is no restriction on the marking, printing, or attaching position of the barcode 7. In addition, since the deflection filter 15 is attached to the camera 13 and the illumination device 14, it is possible to prevent a reading defect due to irregular reflection of ambient light.

  If the identification information of the barcode 7 read by the camera 13 is set as a substrate to be inspected by the processing device 23 via the barcode reader 22 to determine whether it is a substrate to be inspected, an electromagnetic valve is set. By controlling so that the press cylinder 12 is not driven by 25, when a different substrate 6 is set and probe pin contact is made, the probe pin 10 or the support pin 11 hits an electronic component of the substrate 6 and either one is damaged. It can be prevented in advance.

1 is a side view of an inspection apparatus according to an embodiment of the present invention. It is a front view of the inspection device by an embodiment of this invention. It is a cross-sectional plan view which follows the AA line of FIG. It is a perspective view of an XY movement mechanism part. It is explanatory drawing of a barcode.

Explanation of symbols

1 base, 2 lower base, 3 upper base, 4 lower jig, 5 upper jig, 6 substrate, 7 bar code, 12 press cylinder, 13 camera, 14 illumination device, 15 deflection filter, 16 notch hole, 17 XY Moving mechanism, 22 Bar code reader (decoder) 23 Processing device, 24 Measuring unit, 25 Electromagnetic valve, 100 Device body.

Claims (3)

  A placement unit for placing an inspection object having a barcode; a transparent plate that covers an upper surface of the inspection object placed on the placement unit; and a barcode reader that reads information on the barcode through the transparent plate; A barcode reader driving means for supporting the barcode reader and moving the barcode reader to a position opposite to the barcode; and reading information by the barcode reader; A determination processing unit that determines whether the inspection object is an inspection object, and an inspection that performs an inspection based on a determination result from the determination processing unit that the inspection object placed on the placement unit is an inspection object And inspection device.   2. The inspection apparatus according to claim 1, wherein the bar code reader driving means drives the bar code reader in XY biaxial directions orthogonal to each other. 2. The inspection apparatus according to claim 1, wherein a deflection filter is provided on a reading surface of the bar code reader.

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