JP2006073841A - Inspection device of mounted substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the inspection device of a mounted substrate for which the inside of the device can be visually recognized even during an operation while saving costs. <P>SOLUTION: The inspection device of the mounted substrate is designed as inspecting object which is provided with a housing 1 for inspecting the mounted substrate P carried into the housing 1. An opening 15 provided on the housing 1 is provided with a freely openable and closable cover 5, the cover 5 is provided with a through-hole, and the through-hole is formed as a peep hole 6 for visually recognizing the inside from the outside of the housing in a cover closed state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mounting board inspection apparatus in which a mounting state of an electronic component is inspected with respect to a board on which the electronic component is mounted by, for example, a mounting machine.

  As an inspection apparatus for inspecting a board on which an electronic component is mounted, an apparatus for imaging a mounting board carried into the apparatus with an imaging device and inspecting a mounting state of the electronic component on the board based on the imaging data is well known. is there.

  In such an inspection device, the housing is provided with a cover that can be opened and closed. The cover is opened so that the inside of the device can be inspected. Usually, the cover is closed and the device is closed. Since it was operated, it was impossible to visually confirm the operation in the apparatus during operation.

Therefore, a method is conceivable in which a confirmation window is formed by fitting a window material such as an acrylic plate into a window hole formed in the housing, and the inside of the apparatus is visually recognized through the confirmation window during operation of the apparatus (Patent Document 1 or the like).
JP 2002-305229 A (page 2, FIG. 1)

  However, when the confirmation window is formed in the housing of the inspection apparatus, it is necessary to separately attach an expensive window material such as an acrylic plate, and there is a problem that the number of parts increases correspondingly and the cost increases.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a mounting board inspection apparatus that can visually recognize the inside of the apparatus during operation while reducing costs.

  The present invention provides the following means.

[1] A mounting board inspection apparatus having a housing and inspecting a mounting board carried into the housing,
A cover is provided in the opening provided in the housing so as to be freely opened and closed,
A mounting board inspection apparatus, wherein a through hole is provided in the cover, and the through hole is formed as a peep hole for visually recognizing the inside from the outside of the housing when the cover is closed.

  [2] The mounting board inspection apparatus according to [1], wherein a large number of the viewing holes are dispersed.

[3] The cover is disposed along the upper wall portion of the housing in the closed state, and has an inclined portion whose front side is inclined downward in the closed state,
3. The mounting board inspection apparatus according to claim 1 or 2, wherein the peep hole is provided in the inclined portion.

[4] An imaging device for imaging an electronic component on the mounting substrate is provided in the housing,
4. The mounting board inspection apparatus according to any one of the preceding items 1 to 3, wherein the peephole is provided in a region of the cover that avoids the installation position of the imaging device.

[5] There is provided board transfer means for carrying the mounting board into the housing along a predetermined board transfer line and carrying it out of the housing,
5. The mounting substrate inspection apparatus according to any one of the preceding items 1 to 4, wherein the peep hole is formed in a long hole shape extending along a transport direction of the mounting substrate by the substrate transporting means.

[6] A large number of the viewing holes are dispersed,
6. The mounting board inspection apparatus according to any one of the preceding items 1 to 5, wherein a peep hole located at an intermediate portion among a plurality of peep holes is formed larger than a peep hole located at both sides.

  [7] The mounting board inspection apparatus according to any one of [1] to [6], wherein an illumination device capable of being lit in a closed state is provided in the housing.

  According to the mounting board inspection apparatus according to the invention [1], the inside of the apparatus can be visually confirmed through the viewing hole of the cover even when the apparatus is in operation. Furthermore, since the peep hole is constituted by a through hole, the number of parts does not increase and the cost can be reduced.

  According to the mounting board inspection apparatus of the invention [2], the inside of the apparatus can be visually recognized over a wide range.

  According to the mounting board inspection apparatus of the invention [3], the visibility can be further improved.

  According to the mounting substrate inspection apparatus of the above invention [4], it is possible to prevent dust entering from the viewing hole from adhering to the imaging apparatus.

  According to the mounting board inspection apparatus of the invention [5], the visibility can be further improved.

  According to the mounting board inspection apparatus of the invention [6], good visibility can be obtained while ensuring the cover strength.

  According to the mounting board inspection apparatus of the invention [7], the visibility can be further improved.

  FIG. 1 is a front view of a mounting board inspection apparatus according to an embodiment of the present invention. FIG. 2 is a side sectional view of the apparatus, and FIGS. 3 to 5 are block diagrams showing the internal structure of the inspection apparatus according to the embodiment. As shown in both figures, this board inspection apparatus inspects the mounting state of a mounting board P on which electronic components are mounted by a mounting machine, and is arranged along the board transport line of the board mounting system.

  This inspection apparatus includes three leg members that are in contact with the floor and a frame that is a base (not shown) supported by the leg members, and a housing 1 is formed by a plurality of panels that are detachably attached to the frame by bolts. Has been. Inside the housing 1, an internal conveyor 2 is provided on the frame along the substrate transfer line X1 (see FIG. 3). As shown in FIGS. 3 to 5, the internal conveyor 2 is configured to be movable along a Y-axis direction (front-rear direction) orthogonal to the transport line X <b> 1 in a horizontal plane. That is, the inner conveyor 2 is attached to a pair of rails 22 arranged along the Y-axis direction so as to be slidable along the rail length direction. Further, the inner conveyor 2 is screwed to a ball screw 23 arranged along the Y-axis direction. When the ball screw 23 is driven to rotate by driving of the motor 24, the inner conveyor 2 moves in the Y-axis direction. It is configured to be. Thus, the internal conveyor 2 is configured to be movable along the Y-axis direction between the conveyance line X1 and the rear part (back part) in the housing 1.

  In addition, on the transport line X1 on both sides of the internal conveyor 2, a carry-in conveyor and a carry-out conveyor (not shown) respectively covered with conveyor covers 11 and 12 are provided. The housing 1 is provided with openings (not shown) through which the carry-in conveyor and the carry-out conveyor pass, respectively. In a state where the internal conveyor 2 is arranged on the transfer line X1, the mounting board P is transferred from the outside of the housing 1 to the internal conveyor 2 by the carry-in conveyor, and the board P on the internal conveyor 2 is transferred to the internal conveyor 2. And it is comprised so that it may carry out to the exterior of the housing 1 with the carrying-out conveyor.

  A camera 3 as an imaging device is disposed behind (in the back of) the internal conveyor 2 in the housing 1. The camera 3 is configured to be movable along the X-axis direction parallel to the transport line X1. That is, the support member 31 that supports the camera 3 is attached to a pair of rails 32 arranged along the X-axis direction so as to be slidable along the rail length direction. Further, the camera support member 31 is screwed to a ball screw 33 arranged along the X-axis direction. When the ball screw 33 is driven to rotate by driving of the motor 34, the camera 3 is moved in the X-axis direction. It is configured to be moved.

  The camera support member 31 is provided with an illuminating device 35 for illuminating the imaging area of the camera 3.

  As shown in FIGS. 1 and 2, the upper wall portion of the housing 1 is provided with an opening 15 that opens upward. A rear end of the cover 5 is rotatably supported at the rear end of the opening 15 in the housing 1. Then, as shown by the imaginary line in FIG. 2, the cover 5 is rotated upward with the rear end portion as a fulcrum, so that the opening 15 of the housing 1 is opened and the inside of the apparatus is opened to the outside through the opening 15. As shown by the solid line in the figure, by rotating the cover 5 downward with the rear end portion as a fulcrum, the opening 15 of the housing 1 is closed and the inside of the apparatus is sealed.

  In the cover 5, the main region excluding the rear portion is formed as an inclined portion 50. The inclined portion 50 is disposed so that the front side is inclined downward in the cover closed state.

  Further, in the inclined portion 50 of the cover 5, a large number of viewing holes 6 are formed in parallel at predetermined intervals in the vertical direction (Y-axis direction) and the horizontal direction (X-axis direction) in the front half region. The peep hole 6 is formed by a through hole in which a required area of the cover 5 is cut out, and has a long hole shape that is long in the lateral direction (X-axis direction). Further, among the large number of viewing holes 6, the viewing holes 6 disposed at both ends in the X-axis direction are formed to have a smaller length than the viewing hole 6 disposed in the middle.

  As shown in FIG. 2, an illumination device 7 is provided above the inclined portion 50 on the back surface side of the cover 5, and worker detection is performed on the front surface of the housing 1 to detect the presence of the worker M at the housing front surface position. Sensor 71 is provided. Based on the output signal from the sensor 71, the driving of the lighting device 7 is controlled. That is, when the worker M approaches the front position of the housing 1 and the presence is detected, the lighting device 7 is turned on, and when the worker M moves away from the front side of the housing 1, the lighting device 7 is turned off. It is configured.

  As shown in FIGS. 1 and 2, an input device 81 such as a keyboard for inputting various types of information related to the inspection to the inspection device, and various types of information are displayed on the front side of the inspection device. A display device 82 such as a CRT monitor is provided.

  In the inspection apparatus of the present embodiment, the following operation is performed to inspect the substrate P on which electronic components are mounted. During operation (during operation of the apparatus), the cover 5 of the housing 1 is closed.

  First, after the mounting board P is transported to a predetermined position on the inner conveyor 2 by the carry-in conveyor and the inner conveyor 2, the inner conveyor 2 moves rearward along the Y-axis direction, and the board P on the conveyor 2 moves to the camera 3 Is arranged at a position corresponding to (inspection position).

  Subsequently, the camera 3 divides and images the substrate P. During this imaging process, the camera 3 is appropriately moved in the X-axis direction, and the internal conveyor 2 is appropriately moved in the Y-axis direction. Then, the entire required area on the substrate P is imaged. The mounting state of the electronic component on the board P is inspected based on the imaging data at the time of imaging.

  When the imaging process is completed, the internal conveyor 2 moves forward along the Y-axis direction and is disposed at a position corresponding to the transport line X1. Thereafter, the substrate P is carried out of the housing 1 by the internal conveyor 2 and the carry-out conveyor.

  On the other hand, when the operator M confirms the operation inside the apparatus while the apparatus is in operation, the operator M stands on the front side of the inspection apparatus and visually observes the inside of the apparatus through the viewing hole 6 provided in the cover 5. It is to confirm. Thus, even when the apparatus is in operation, the operation inside the apparatus can be reliably confirmed by visual observation.

  Further, in the present embodiment, the sensor 71 is provided on the front surface of the apparatus, and when the worker M approaches the inspection apparatus, the illumination device 7 in the housing 1 is turned on. When the inside of the inspection apparatus is visually recognized through the peephole 6, the interior of the apparatus is illuminated by turning on the illumination apparatus 7, and sufficient brightness is obtained. Therefore, it is possible to reliably grasp the operation state inside the apparatus by visual observation.

  In the present invention, it is not always necessary to control the illumination device 7 based on the sensor 71 as described above. For example, a lighting switch is provided on the front surface of the inspection device, and the operator M manually operates the switch. Thus, the lighting device 7 may be turned on and off. Further, a sensor for detecting opening / closing of the cover 5 may be provided, and based on a signal from the sensor, the lighting device 7 may be turned on when the cover 5 is closed and may be turned off when the cover 5 is opened.

  In this embodiment, since the peeping hole 6 is formed in the shape of a long hole extending along the transport direction (X-axis direction) of the substrate P, the movement of the substrate P can be easily followed and the operation can be confirmed. It can be done reliably.

  Further, since the peep holes 6 on both sides among the many peep holes 6 are formed small, the opening area by the holes 6 of the cover 5 can be reduced, and the strength of the cover 5 can be sufficiently secured. In addition, since the middle peephole 6 is formed large among many peepholes 6, the main part of the middle of the apparatus can be surely seen through the middle peephole 6, and good visibility (visible) Ease).

  Further, in the present embodiment, since the peep hole 6 is formed by a through hole, unlike the case of using a window material such as an acrylic plate, the number of parts does not increase and the cost can be reduced. .

  Further, in the present embodiment, since a large number of small viewing holes 6 are dispersedly formed in the cover 5, the inside of the inspection apparatus can be visually recognized over a wide range, and the operation can be confirmed more accurately. The strength of the cover 5 can be more reliably prevented from lowering.

  In this embodiment, since the peephole 6 is formed in the front half of the cover 5, the peephole 6 is not arranged above the camera 3 arranged behind the cover 5. The upper side is securely closed by the cover 5. For this reason, even if dust such as dust or dust enters the inspection apparatus through the viewing hole 6, the dust does not fall on the camera 3. Therefore, dust does not adhere to the camera 3 as the main part of the inspection apparatus, and the inspection accuracy can be maintained at a high level.

  Furthermore, in this embodiment, since the inclined part 50 which inclines ahead is provided in the front side area | region of the cover 5, and the peeping hole 6 is formed in the inclined part 50, the worker M stood in front of the inspection apparatus Thus, when looking through the viewing hole 6, the line of sight Li of the worker M can smoothly pass through the viewing hole 6 without hindrance, and the visibility inside the apparatus can be further improved.

  FIG. 7 is a perspective view showing the periphery of the cover of the inspection apparatus showing the first modification of the present invention. As shown in the figure, in this inspection apparatus, rectangular (square) peep holes 6 a are formed in a vertical and horizontal parallel arrangement in the front half region of the inclined portion 50 in the cover 5 of the housing 1. Furthermore, each peep hole 6a is formed so that the size decreases as it goes to both sides. Other configurations are the same as those in the above embodiment.

  This inspection apparatus can also obtain the same effect as described above.

  FIG. 8 is a perspective view showing the periphery of the cover of the inspection apparatus showing the second modification of the present invention. As shown in the figure, in this inspection apparatus, circular peep holes 6b are formed in a vertical and horizontal parallel arrangement in the front half region of the inclined portion 50 in the cover 5 of the housing 1. Furthermore, each peep hole 6b is formed so that the size gradually increases as it goes upward (rearward). Other configurations are the same as those in the above embodiment.

  In this inspection apparatus, the same effect as described above can be obtained, and further, the rear (upper) side viewing hole 6b is formed larger, so that the inner depth of the apparatus is increased through the larger viewing hole 6b. The part (rear part) can be visually recognized more reliably, and the visibility can be further improved.

  Needless to say, in the present invention, the shape, size, number and position of the peep holes 6 are not limited to those of the above-described embodiments and modifications.

  For example, when the shape and size of a large number of peep holes are formed uniformly, the holes can be formed efficiently, and the cost can be reduced.

  Further, in the above embodiment, a required portion of the cover is cut out (cut out) to form a peephole. However, the present invention is not limited to this, and in the present invention, for example, as shown in FIG. The peep hole 6 may be formed by cutting down (bending). In this configuration, a bent piece 60 extending horizontally toward the inside of the apparatus is formed at the lower edge portion of the viewing hole 6 on the back surface side of the cover 5. Since the bent pieces 60 are horizontally disposed below the corresponding peep holes 6, dust entering from the peep holes 6 is received by the bent pieces 60, thereby reliably preventing entry into the apparatus. Can do.

  When forming the bent piece 60, the tip of the bent piece 60 may be cut to such an extent that dust can be prevented from entering. That is, as shown in FIG. 9, the push-bending piece 60 may cut a portion on the distal end side (device inner side) with respect to the vertical line Lz passing through the upper end edge of the corresponding viewing hole 6. In this case, it is possible to ensure good visibility while effectively preventing dust from entering.

  In the above embodiment, the camera is configured to move only in the X-axis direction. However, the present invention is not limited to this, and in the present invention, the camera is configured to move together in the X-axis and Y-axis directions. During the imaging process, the substrate may be fixed and the camera may be moved in the XY axis direction.

It is a front view of the inspection apparatus of the mounting board concerning one embodiment of this invention. It is side surface sectional drawing which shows the inspection apparatus of embodiment. It is a top view which shows roughly the internal structure in the inspection apparatus of embodiment. It is a front view which shows roughly the internal structure in the inspection apparatus of embodiment. It is a side view which shows roughly the internal structure in the inspection apparatus of embodiment. It is a perspective view which shows the cover periphery in the inspection apparatus of embodiment. It is a perspective view which shows the cover periphery of the inspection apparatus concerning the 1st modification of this invention. It is a perspective view which shows the cover periphery of the test | inspection apparatus concerning the 2nd modification of this invention. It is sectional drawing which shows the periphery of a peephole of the inspection apparatus concerning the 3rd modification of this invention.

Explanation of symbols

1 Housing 2 Internal conveyor (substrate transfer means)
15 aperture 3 camera (imaging device)
5 Cover 50 Inclined part 6, 6a, 6b Peep hole 7 Lighting device P Printed circuit board (mounting board)
X1 Board transfer line

Claims (7)

A mounting board inspection apparatus having a housing and inspecting a mounting board carried into the housing,
A cover is provided in the opening provided in the housing so as to be freely opened and closed,
A mounting board inspection apparatus, wherein a through hole is provided in the cover, and the through hole is formed as a peep hole for visually recognizing the inside from the outside of the housing when the cover is closed.   2. The mounting board inspection apparatus according to claim 1, wherein a plurality of the viewing holes are formed in a dispersed manner. The cover is disposed along the upper wall portion of the housing in the closed state, and has an inclined portion whose front side is inclined downward in the closed state,
The mounting board inspection apparatus according to claim 1, wherein the peep hole is provided in the inclined portion. An imaging device for imaging an electronic component on the mounting substrate is provided in the housing,
The mounting substrate inspection apparatus according to claim 1, wherein the peep hole is provided in an area of the cover that avoids the installation position of the imaging device. A substrate carrying means for carrying the mounting board into the housing along a predetermined board carrying line and carrying it out of the housing is provided,
5. The mounting board inspection apparatus according to claim 1, wherein the peep hole is formed in a long hole shape extending along a direction of carrying the mounting board by the board carrying means. A large number of the viewing holes are dispersed,
6. The mounting board inspection apparatus according to claim 1, wherein a peep hole located at an intermediate portion among a plurality of peep holes is formed larger than a peep hole located at both sides.   The mounting board inspection apparatus according to claim 1, wherein an illumination device capable of being lit in a closed state is provided in the housing.

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