WO2015040667A1 - 実装検査装置 - Google Patents
実装検査装置 Download PDFInfo
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- WO2015040667A1 WO2015040667A1 PCT/JP2013/075012 JP2013075012W WO2015040667A1 WO 2015040667 A1 WO2015040667 A1 WO 2015040667A1 JP 2013075012 W JP2013075012 W JP 2013075012W WO 2015040667 A1 WO2015040667 A1 WO 2015040667A1
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- inspection
- substrate
- mounting
- missing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/081—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines
- H05K13/0815—Controlling of component placement on the substrate during or after manufacturing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95638—Inspecting patterns on the surface of objects for PCB's
Definitions
- the present invention relates to a mounting inspection apparatus.
- the shortage inspection apparatus described in Patent Document 1 first obtains luminance data by photographing a raw board on which electronic components are not mounted and a mounting board on which electronic components are mounted with a camera. Subsequently, the shortage inspection apparatus selects a shortage inspection algorithm and calculates a threshold based on the difference value between the respective luminance data. Then, the missing part inspection apparatus performs a missing part inspection based on the calculated threshold value and the luminance information of the mounted board using the selected algorithm. By doing so, the shortage inspection device can more accurately determine whether there is a shortage.
- the present invention has been made in view of such a problem, and a main object thereof is to further suppress a substrate in which a shortage has been detected from becoming a defective substrate.
- the mounting inspection apparatus of the present invention is A shortage inspection means for inspecting a shortage of components mounted on a substrate; Foreign matter inspection means for performing foreign matter inspection for inspecting foreign matter on the substrate on the substrate on which the shortage is detected, based on the result of the shortage inspection by the shortage inspection means, It is equipped with.
- the foreign matter on the board is inspected with respect to the board on which the missing part of the mounted component (such as an electronic part) is detected.
- the part can be detected as a foreign object. Therefore, it is possible to suppress a missing part from being left on the substrate, and it is possible to further suppress a defective substrate from being detected as a defective substrate.
- the foreign matter inspection means may not perform the foreign matter inspection on a substrate on which the shortage is not detected by the shortage inspection. By doing so, the substrate can be inspected more efficiently.
- the foreign matter inspection means acquires out-of-stock position information that is information related to a position where the out-of-stock is detected in the board, and is specified by the out-of-stock position information in the board.
- the foreign matter inspection may be preferentially performed around the position.
- the foreign matter inspection means obtains out of stock transport information that is information on a transport path on the substrate when mounting the component related to the detected out of stock,
- the foreign matter inspection may be preferentially performed on an area specified by the missing part conveyance information.
- the foreign matter inspection means performs the foreign matter inspection based on image processing, and obtains missing part size information that is information relating to the size of a part related to the detected missing part. Then, based on the acquired missing part size information, the foreign substance inspection may be performed by ignoring foreign substances smaller than the part related to the missing part among foreign substances detected based on the image processing. By doing so, it is possible to more efficiently detect a missing part.
- the foreign matter inspection means when there are a plurality of parts related to the detected missing part, the foreign matter inspection means, based on the missing part size information of the smallest part among the parts related to the missing part, The foreign matter inspection may be performed by ignoring foreign matters smaller than the smallest component among foreign matters detected based on the processing. In this way, when there are a plurality of missing parts, the missing parts can be detected more efficiently.
- the board is a multi-sided board including a plurality of sub-boards
- the foreign matter inspection unit is provided for the multi-sided board in which the missing part is detected by the missing part inspection unit.
- the foreign substance inspection may be performed on one or more sub-boards other than the sub-board on which the shortage is detected among the multi-sided boards. In this way, even when there is a missing part on the sub-board other than the sub-board on which the missing part is detected, the part can be detected.
- the mounting inspection apparatus of the present invention may include an informing means for informing the presence of a foreign object when a foreign object is detected by the foreign object inspection.
- the foreign matter inspecting means specifies the position of the foreign matter on the substrate when the foreign matter is detected, and the notification means may notify the position of the specified foreign matter. . In this way, it is possible to efficiently remove foreign substances on the substrate based on the notified position.
- the mounting inspection apparatus of the present invention acquires a reference image for acquiring one or more of pre-mounting reference image data representing a state before mounting the substrate and post-mounting reference image data representing a correct state after mounting the substrate. And a captured image acquisition means for capturing captured image data by capturing the mounted substrate, wherein the foreign matter inspection means includes at least one of the pre-mounting reference image data and the post-mounting reference image data. The foreign matter on the substrate may be inspected based on a comparison between the captured image data and the captured image data.
- FIG. 1 is a configuration diagram showing an outline of the configuration of a component mounting system 10.
- FIG. Explanatory drawing of the mounting condition information 86.
- FIG. The flowchart which shows an example of a missing item inspection process routine.
- Explanatory drawing which shows the relationship between the board
- the flowchart which shows an example of a foreign material inspection process routine.
- Explanatory drawing which shows a mode that the foreign material test
- FIG. 1 is a configuration diagram showing an outline of a configuration of a component mounting system 10 according to an embodiment of the present invention.
- the component mounting system 10 includes a plurality of mounting processing devices 20 connected to a LAN 12 serving as a network and mounting one or more electronic components (components P) on a substrate S (see FIG. 4 described later for the components P and the substrate S), One or more mounting inspection apparatuses 40 that are connected to the LAN 12 and inspect the mounting state of the component P, and a management computer 80 that is connected to the LAN 12 and manages information related to processing in each mounting processing apparatus 20 and each mounting inspection apparatus 40. ing.
- the component mounting system 10 is connected to a plurality of mounting processing apparatuses 20 mounted with reels or the like that accommodate various components P, and is configured as a mounting line that transports the substrate S and mounts the components P.
- the component mounting system 10 includes one mounting processing device 20 and one inspection device 50, but may include a further mounting processing device 20 and an inspection device 50.
- the left-right direction (X-axis), the front-rear direction (Y-axis), and the up-down direction (Z-axis) are as shown in FIG. “Mounting” includes placing, mounting, inserting, joining, and bonding the component P on the substrate S.
- the mounting processing apparatus 20 includes a mounting control unit 21 that executes various controls, a substrate processing unit 30 that performs conveyance and fixation of the substrate S, a mounting processing unit 32 that executes processing for placing the component P on the substrate S, It has. Further, the mounting processing device 20 communicates with a supply unit 37 that supplies a part P accommodated in a reel or a tray to a predetermined take-out position, a parts camera 38 that captures the sucked part P, and a device connected to the LAN 12. An input / output interface (I / F) 39 is provided.
- I / F input / output interface
- the substrate processing unit 30 includes a substrate transport unit that transports the substrate S to a predetermined mounting position where the component P is disposed, and a substrate holding unit that fixes the transported substrate S at the mounting position.
- the substrate transport unit is configured as a device that transports the substrate S by a belt conveyor, for example, and includes a guide member provided in each of the pair of side frames and a conveyor belt provided in each of the pair of side frames. And a belt rotating device that drives the conveyor belt to rotate.
- the substrate holding unit is disposed at each predetermined mounting position, and includes, for example, a support device that supports the substrate S from below and a clamp device that clamps the edge of the substrate S.
- the mounting processing unit 32 includes a mounting head 33, a suction nozzle 34 mounted on the mounting head 33 via a nozzle holder, and a head moving unit 35 that moves the mounting head 33 in the XY directions.
- the mounting head 33 incorporates a Z-axis motor (not shown), and adjusts the height of the suction nozzle 34 attached to a ball screw (not shown) in the Z-axis direction by the Z-axis motor.
- the XY direction is a biaxial direction perpendicular to the horizontal plane, and the Z axis is a vertical axis.
- the suction nozzle 34 uses pressure to suck the component P at the nozzle tip, or to release the component P sucked at the nozzle tip.
- a pipe (not shown) is connected to the suction nozzle 34.
- negative pressure is supplied to the nozzle tip through the pipe, and the component P sucked to the nozzle tip is removed.
- a positive pressure is supplied to the tip of the nozzle through a pipe.
- the suction nozzle 34 can be replaced with one that matches the size and shape of the component P.
- the head moving unit 35 can be moved in the X direction by an X direction slider (not shown) and can be moved in the Y direction by a Y direction slider (not shown). As the head moving unit 35 moves in the XY direction, the mounting head 33 also moves in the XY direction.
- Each slider is driven by a drive motor.
- the supply unit 37 includes a reel supply unit that supplies the component P from the reel.
- the reel supply unit includes a mounting unit for mounting the reel, a tape feeder unit that feeds the tape from the wound reel to a suction position, and a cutting unit that cuts and removes the tape from which the component P has been taken out.
- the mounting processing device 20 can be replaced with a tray supply unit that accommodates a plurality of trays on which a plurality of components P are placed.
- the tray supply unit includes a mounting unit that mounts a magazine cassette containing a plurality of trays, and a tray moving unit that sends out a desired tray from the magazine cassette mounted in the mounting unit.
- the mounting control unit 21 is configured as a microprocessor centered on the CPU 22, and includes a ROM 23 for storing a processing program, a RAM 24 used as a work area, an HDD 25 for storing various data, and the like via a bus. Connected.
- the mounting control unit 21 inputs and outputs signals and information with the substrate processing unit 30, the mounting processing unit 32, the supply unit 37, and the management computer 80 via the input / output interface 39. Further, the mounting control unit 21 outputs a photographing signal to the parts camera 38 and inputs an image signal from the parts camera 38 via the input / output interface 39.
- the mounting control unit 21 configured in this manner causes each component P to be attracted to the suction nozzle 34 based on the mounting condition information including the conditions relating to the mounting of each component P, and the mounting head 33 is moved by the head moving unit 35 to form a substrate. A process of mounting each component P on S is executed.
- the mounting condition information is managed by the management computer 80.
- the mounting inspection apparatus 40 includes an inspection control unit 41 that performs various controls, a substrate processing unit 50 that performs conveyance and fixation of the substrate S on which the component P is mounted, and an inspection process that photographs the substrate S when the substrate S is inspected.
- the unit 52 includes an operation panel 56 on which a display screen is displayed and various input operations can be performed by an operator, and an input / output interface (I / F) 59 that communicates with a device connected to the LAN 12.
- the substrate processing unit 50 includes a substrate transport unit that transports the substrate S to a predetermined inspection position, and a substrate holding unit that fixes the transported substrate at the inspection position. Since the configuration of the substrate processing unit 50 is the same as that of the substrate processing unit 30, the description thereof is omitted here.
- the inspection processing unit 52 photographs the substrate S and obtains a captured image including images of the substrate ID on the substrate S (ID representing the type of the substrate S), the component P, and the like, and the substrate camera 53 as XY.
- a camera moving unit 54 that moves the substrate S to a position where it can be photographed.
- the substrate camera 53 includes an illumination unit that emits light to the substrate S, an imaging element that generates charges by receiving light and outputs the generated charges, and an image that generates captured image data including a captured image based on the output charges.
- a processing unit can be moved in the X direction by an X direction slider (not shown) and can be moved in the Y direction by a Y direction slider (not shown). As the camera moving unit 54 moves in the XY directions, the board camera 53 also moves in the XY directions.
- Each slider is driven by a drive motor.
- the operation panel 56 includes a display unit 57 that displays a screen and an operation unit 58 that receives an input operation from an operator.
- the display unit 57 is configured as a liquid crystal display, and displays the operating state and setting state of the mounting inspection device 40 on the screen.
- the operation unit 58 includes a cursor key for moving the cursor up and down, left and right, a cancel key for canceling input, a determination key for determining selection contents, and the like, and is configured to allow an operator's instruction to be key-inputted.
- the inspection control unit 41 is configured as a microprocessor centered on a CPU 42, and includes a ROM 43 that stores processing programs, a RAM 44 that is used as a work area, an HDD 45 that stores various data, and the like. Connected.
- the inspection control unit 41 outputs control signals to the substrate processing unit 50 and the inspection processing unit 52, outputs display data to the operation panel 56, and transmits information to the management computer 80 via the input / output interface 59.
- the inspection control unit 41 inputs a signal from the substrate processing unit 50 via the input / output interface 59, acquires captured image data captured by the substrate camera 53, and data input to the operation panel 56. Etc. or information is received from the management computer 80.
- the management computer 80 is a computer that includes a control device 81 and manages information on a plurality of mounting processing devices 20 and a plurality of mounting inspection devices 40.
- the control device 81 is configured as a microprocessor centered on a CPU 82, and includes a ROM 83 that stores processing programs, a RAM 84 that is used as a work area, an HDD 85 that stores various data, and the like via a bus. Connected.
- the management computer 80 includes an input device 87 such as a keyboard and a mouse for an operator to input various commands, a display 88 for displaying various information, and an input / output interface 89 for exchanging electrical signals with an external device. It is equipped with.
- the HDD 85 of the management computer 80 stores mounting condition information 86 used for mounting by the mounting processing apparatus 20 and inspection by the mounting inspection apparatus 40, inspection condition information used for inspection by the mounting inspection apparatus 40, and the like.
- FIG. 2 is an explanatory diagram of the mounting condition information 86.
- the mounting condition information 86 includes, for example, information such as the mounting order of the components P, the component type, the component size, the arrangement position on the substrate S, the transport path on the substrate S during mounting, and the like.
- the component size information is, for example, information indicating the vertical and horizontal lengths of the component P (XY direction length when mounted).
- the information on the arrangement position is information representing the XY coordinates of the center of the component P, for example.
- the transport path information is information representing XY coordinates of a plurality of points on the transport path of the component P on the substrate S when the mounting head 33 moves the component P to the arrangement position, for example.
- the inspection condition information for example, the inspection conditions such as the imaging condition of the inspection processing unit 52, the imaging region (shortage inspection region), and the movement condition for moving the substrate camera 53 are included in the substrate ID of the substrate S. It is associated.
- the HDD 85 includes pre-mounting reference image data including an image obtained by photographing the state before mounting of the substrate S, and post-mounting reference image data including an image obtained by photographing the correct state after mounting of the substrate S to be inspected. It is stored in association with the substrate ID of the substrate S.
- the pre-mounting reference image data and the post-mounting reference image data are image data obtained by, for example, photographing the substrate S with the substrate camera 53 in advance.
- FIG. 3 is a flowchart showing an example of a missing part inspection processing routine executed by the CPU 42 of the inspection control unit 41. This routine is stored in the HDD 45 of the mounting inspection apparatus 40, and is executed when the substrate S for which the mounting processing in the mounting processing apparatus 20 has been completed is transported to the mounting inspection apparatus 40.
- the CPU 42 of the mounting inspection device 40 first acquires the mounting condition information 86 from the management computer 80 and stores it in the HDD 45 (step S100).
- the CPU 42 reads out the inspection condition information from the management computer 80 and acquires the inspection conditions (such as a missing part inspection area) (step S110).
- the size and number of the shortage inspection area (imaging area) are determined in advance based on the size of the substrate S, the size of the range that can be imaged by the substrate camera 53, and the like.
- FIG. 4 is an explanatory diagram showing the relationship between the substrate S and the missing part inspection area. In FIG. 4, a missing part inspection area is shown as an area surrounded by a broken line frame.
- the substrate S is a multi-planar substrate having a plurality of sub-substrates S1 to S3 arranged from left to right.
- a range in which each of the sub-substrates S1 to S3 is divided into three in the front-rear direction (the substrate S is divided into nine) is defined as a single shortage inspection area.
- step S100 information such as the XY coordinates of one uninspected missing part inspection area among the plurality of missing part inspection areas is acquired in a predetermined order (for example, the order from the left rear to the right front).
- the CPU 42 controls the camera moving unit 54 based on the inspection condition acquired in step S110 to move the substrate camera 53 to a position where the shortage inspection area acquired in step S110 can be photographed.
- the shortage inspection area on the substrate S is photographed to obtain a photographed image (step S120).
- the CPU 42 determines whether or not there is a missing part in the component P mounted in the missing part inspection area (step S130).
- the CPU 42 can determine whether there is a shortage by comparing the captured image data acquired in step S120 with the post-mounting reference image data stored in the HDD 85 of the management computer 80.
- the post-mounting reference image data is acquired from the management computer 80 by the CPU 42.
- the CPU 42 identifies an area where the part P should exist in the shortage inspection area, and compares the image in that area between the captured image data and the post-mounting reference image data. When there are a plurality of parts P in the missing part inspection area, a comparison is made for each area where each part P should exist.
- the area where the component P should exist is specified by the CPU 42 by reading information such as the arrangement position of the component P and the component size from the mounting condition information 86.
- the CPU 42 determines that there is a missing part of one or more parts P in step S130, the CPU 42 stores, in the HDD 45, information that can identify the part P determined to be missing (step S140).
- the mounting condition information 86 the mounting order of the components P determined to be missing and the board ID to be mounted are specified, and these pieces of information are stored as missing information.
- step S140 determines whether the missing item inspection is completed, that is, whether there is a missing item for all of the plurality of missing item inspection areas described above. It is determined whether or not the inspection has been performed (step S150). Then, when there is an uninspected missing part inspection area, the CPU 42 executes the processing after step S110. That is, the CPU 42 reads out inspection information including information on the next missing part inspection area, etc., performs imaging of the missing part inspection area, inspects whether there is a missing part, and stores the missing part information if there is a missing part. . If the CPU 42 determines that the missing item inspection is completed in step S150, the missing item inspection processing routine is terminated. As described above, the CPU 42 inspects a missing part in the missing part inspection area by image processing based on the photographed image data and the post-mounting reference image data, and repeats this process to repeat the missing part for all the parts P on the substrate S. Perform an inspection.
- FIG. 5 is a flowchart showing an example of a foreign matter inspection processing routine executed by the CPU 42 of the inspection control unit 41.
- This routine is stored in the HDD 45 of the mounting inspection apparatus 40 and is executed for the substrate S in which one or more pieces of missing piece information are stored in the HDD 45 by the missing piece inspection process. That is, based on the result of the missing part inspection process, the foreign substance inspection process is performed on the substrate S on which the missing part is detected. The foreign substance inspection process is not performed on the substrate S on which no missing part is detected in the missing part inspection process.
- the CPU 42 of the mounting inspection device 40 first acquires out-of-stock size information, which is information related to the size of the part P determined as out-of-stock in the out-of-stock inspection processing (step S200).
- the CPU 42 identifies the part size of the part P determined to be a missing part based on the mounting condition information 86 and the missing part information stored in the HDD 45 in the missing part inspection process, and uses this as the missing part size. Obtain as information.
- the CPU 42 acquires out-of-stock size information of each part P.
- the CPU 42 sets a determination threshold Eth for determining foreign matter based on the missing item size information (step S210).
- the determination threshold Eth is a value obtained by adding a margin to a value obtained by converting the area occupied on the substrate S of the component P determined to be a shortage into the number of pixels (for example, 0.9 times the converted value, A value obtained by subtracting a predetermined value from the converted value).
- the CPU 42 sets the determination threshold Eth based on the component P having the smallest area on the substrate S among the plurality of components P.
- the CPU 42 acquires missing part position information, which is information related to the position where the missing part is detected in the substrate S (step S220).
- the CPU 42 specifies the arrangement position of the component P determined to be a missing item based on the mounting condition information 86 and the missing item information stored in the HDD 45 in the missing item inspection process, and uses this as the missing item position. Obtain as information.
- the CPU 42 acquires out-of-stock position information of each part P.
- the CPU 42 sets a foreign substance inspection region including the periphery of the missing part position on the substrate S based on the acquired missing part position information (step S230).
- FIG. 6 is an explanatory view showing a state in which a foreign substance inspection area including the periphery of the shortage position is set.
- FIG. 6 shows a foreign substance inspection area when the component P1 on the sub board S2 is determined to be missing.
- the CPU 42 sets a rectangular area centering on the missing part position, which is the arrangement position of the part P1 (in this embodiment, the center position of the part P1), as the foreign substance inspection area.
- the size in the XY direction of the rectangular area may be a fixed value, for example, as a variable value calculated based on the missing part size information so that the foreign substance inspection area becomes larger as the part size of the part P1 is larger. Also good.
- the shape of the foreign substance inspection area is not limited to a rectangular shape, and may be a circular shape, for example.
- the foreign substance inspection area based on the component P1 includes only the child board S2 in which the shortage of the part P1 is detected, but the rectangular area centered on the component P1 is a child other than the child board S2.
- the region other than the child substrate S2 is also included in the foreign matter inspection region.
- the CPU 42 sets a foreign substance inspection area for each part P. That is, the CPU 42 sets a plurality of foreign substance inspection areas.
- the CPU 42 determines whether or not there is a foreign substance having a size equal to or larger than the determination threshold Eth in the foreign substance inspection area set in step S230 (step S240).
- the determination of the presence or absence of foreign matter by the CPU 42 is performed as follows, for example. First, the photographed image data acquired in step S120 of the shortage inspection process routine is compared with the pre-mounting reference image data and the post-mounting reference image data stored in the HDD 85 of the management computer 80, and within the foreign matter inspection area. One or more pixels that can be regarded as different from the captured image and the reference image are detected, and the detected pixels are specified as foreign object candidate pixels. The CPU 42 acquires the pre-mounting reference image data and the post-mounting reference image data from the management computer 80.
- the CPU 42 compares the area in the foreign object inspection area where the missing item is detected based on the pre-mounting reference image data, and the other area after the mounting reference image data. Make a comparison based on It should be noted that the CPU 42 may not compare the area where the missing item is detected in the foreign substance inspection area. In this case, it is not necessary to acquire pre-mounting reference image data.
- the CPU 42 regards the foreign substance candidate pixels that are continuous in the X direction and the Y direction as one foreign substance candidate, and is a number greater than or equal to the determination threshold Eth in the foreign substance inspection area. It is determined whether there is a foreign object candidate having a foreign object candidate pixel.
- the CPU 42 detects a foreign object candidate having a number of foreign object candidate pixels equal to or greater than the determination threshold Eth as a foreign object.
- the CPU 42 detects each of the plurality of foreign objects.
- the CPU 42 may also compare pixels around the foreign object inspection area. By doing this, even when the foreign object candidate is straddling the inside and outside of the foreign object inspection area, the size of the foreign object candidate (the number of foreign object candidate pixels) is appropriately calculated to determine whether the foreign object candidate is a foreign object.
- the CPU 42 determines whether or not there is a foreign substance having a size equal to or larger than the determination threshold Eth for each foreign substance inspection area. As described above, the CPU 42 uses the periphery of the missing part position of the substrate S as a foreign substance inspection area, and preferentially inspects this foreign substance inspection area. Further, the CPU 42 ignores the foreign matter (foreign matter candidate) that is less than the determination threshold Eth and performs the foreign matter inspection.
- step S240 the CPU 42 stores information that can identify the foreign objects in the HDD 45 as foreign object information (step S250).
- the CPU 42 stores the center coordinates of the foreign matter in the XY direction as foreign matter information as information for specifying the position of the detected foreign matter on the substrate S.
- the CPU 42 determines whether or not the number of foreign matters detected in step S240 is equal to or greater than the number of missing items detected in the missing item inspection process (step S260).
- the CPU 42 determines the board S of the component P in which the missing parts are detected.
- the missing item conveyance information which is information on the upper conveyance route is acquired (step S270).
- the CPU 42 specifies the conveyance path of the component P determined to be a missing item based on the mounting condition information 86 and the missing item information stored in the HDD 45 in the missing item inspection process, and this is conveyed as a missing item conveyance. Obtain as information.
- the CPU 42 acquires out-of-stock transport information for each part P.
- FIG. 7 is an explanatory diagram showing a state in which a foreign substance inspection area including a shortage conveyance path is set.
- FIG. 7 shows a foreign substance inspection area when it is determined that the component P1 on the sub board S2 is missing as in FIG.
- the missing part conveyance path which is the conveyance path on the substrate S of the component P1 at the time of mounting, is a straight line extending from the front end of the substrate S to the right rear and a straight line along the Y direction from the rear to the component P1. Is a broken line-like route.
- the CPU 42 sets an area including the shortage conveyance path as a foreign substance inspection area.
- the shortage conveyance path is a polygonal line, but is not limited thereto, and may be a straight line or a curved line.
- the foreign substance inspection area may be, for example, an area obtained by extending the missing part conveyance path by a fixed value in the XY direction, or based on the missing part size information so that the foreign substance inspection area becomes larger as the part size of the part P1 increases. An area expanded in the XY direction by the calculated variable value may be used. As shown in FIG.
- the CPU 42 when the substrate S is a multi-planar substrate, the CPU 42 also includes the sub-substrate S1 other than the sub-substrate S2 in which the shortage is detected in the foreign substance inspection region.
- the CPU 42 sets a foreign substance inspection area for each part P. That is, the CPU 42 sets a plurality of foreign substance inspection areas.
- the area determined in step S240 such as the area set as the foreign substance inspection area in step S230, may be excluded from the foreign substance inspection area set in step S280.
- the CPU 42 determines whether or not there is a foreign substance having a size equal to or larger than the determination threshold Eth in the foreign substance inspection area set in step S280 (step S290). Is stored in the HDD 45 (step S300).
- the processing of steps S290 and S300 is performed by the CPU 42 in the same manner as the processing of steps S240 and S250.
- the CPU 42 sets a region including the missing item conveyance path in the substrate S as a foreign matter inspection region, and preferentially inspects the foreign matter for this foreign matter inspection region.
- the CPU 42 determines whether or not the number of foreign matters (total number) detected in steps S240 and S290 is equal to or greater than the number of missing parts detected in the missing part inspection process ( Step S310).
- step S320 when the substrate S is a multi-planar substrate, the CPU 42 also includes a child substrate other than the child substrate in which the shortage is detected in the foreign substance inspection region.
- step S330 the CPU 42 determines whether or not there is a foreign object having a size equal to or larger than the determination threshold Eth in the foreign object inspection area set in step S320 (step S330). Is stored in the HDD 45 (step S340).
- steps S330 and S340 is performed by the CPU 42 in the same manner as the processing of steps S240 and S250.
- the CPU 42 performs the foreign matter inspection on the entire non-foreign matter inspection region on the substrate S when no foreign matter is detected in the foreign matter inspection region where the foreign matter inspection has been performed preferentially.
- step S340 After the CPU 42 performs the process of step S340, or after the CPU 42 determines that there is no foreign matter in step S330, the CPU 42 determines that the number of foreign matters (total number) detected in step S240, step S290, and step S330 is 1 or more. It is determined whether or not there is (step S350).
- step S140 the CPU 42 performs step S140 of the missing item inspection process.
- the operation panel 56 is controlled to display on the display unit 57 a predetermined inspection result display screen including the missing item information stored in step S1 and the foreign substance information stored in one or more of steps S250, S300, and S340 (step S250). S360). Accordingly, the operator is notified of the presence of missing items and foreign matters, information on the missing items, position information of foreign matters on the substrate S, and the like.
- step S350 the CPU 42 operates to display the inspection result display screen including the missing item information stored in step S140 of the missing item inspection process on the display unit 57.
- the panel 56 is controlled (step S370). Thereby, the presence of a missing item, information on the missing item, and the like are notified to the worker.
- the CPU 42 controls the substrate processing unit 50 to remove the substrate S from the production line.
- the operator performs an appropriate process on the substrate S that is off the production line. For example, when the presence of foreign matter and the position of a foreign matter are displayed on the inspection result display screen, the operator removes the foreign matter on the substrate S based on the displayed positional information of the foreign matter, and then mounts the processing apparatus 20. Etc. are used to re-mount the component P in which the shortage is detected, and the substrate S is returned to the production line.
- the operator remounts the component P in which the missing item is detected using the mounting processing device 20 or the like.
- the substrate S is returned to the production line.
- the inspection control unit 41 of the present embodiment corresponds to a missing item inspection means, foreign matter inspection means, notification means, and reference image acquisition means of the present invention.
- the substrate camera 53 corresponds to a captured image acquisition unit.
- the foreign matter inspection on the board S is performed on the board S on which the missing part of the mounted component P is detected based on the result of the missing part inspection.
- the inspection control unit 41 can detect the component as a foreign object. Therefore, it is possible to suppress the missing component P from being left on the substrate S, and it is possible to further suppress the substrate S from which the missing item has been detected from becoming a defective substrate.
- the missing component P is present on the substrate S, for example, when the component P falls on the substrate S during conveyance to the mounting position, or when the component P is pressed too much into the substrate S shape.
- the mounting inspection apparatus 40 can inspect the substrate S more efficiently.
- the mounting inspection device 40 acquires out-of-stock position information that is information related to the position where the shortage is detected in the substrate S, and the periphery of the shortage position specified by the shortage position information in the substrate S. Priority is given to foreign matter inspection. There is a relatively high possibility that the missing part P is present around the correct position of the part P. Therefore, by performing the foreign object inspection preferentially in the vicinity of the correct position of the component P, the component P that has become a missing item can be detected more efficiently.
- the mounting inspection apparatus 40 acquires missing part conveyance information that is information regarding the conveyance path on the substrate S when the component P related to the detected missing item is mounted, and is specified by the missing part conveyance information in the substrate S.
- the foreign object inspection is performed preferentially for the area to be processed. There is a relatively high possibility that the missing part P is present in the transport path to the correct position of the part P where the missing part is detected. Therefore, by performing the foreign substance inspection preferentially for the area including the transport path in the substrate S, it is possible to more efficiently detect the missing part P.
- the mounting inspection apparatus 40 performs foreign object inspection based on image processing, acquires out-of-stock size information that is information about the size of the part P related to the out-of-stock, and includes the acquired out-of-stock size information.
- out-of-stock size information that is information about the size of the part P related to the out-of-stock
- includes the acquired out-of-stock size information On the basis of the foreign matter detected based on the image processing, the foreign matter smaller than the missing part P is ignored and the foreign matter inspection is performed. For this reason, for example, it is possible to further prevent erroneous detection of a part smaller than the component P, such as a solder deviation, as a foreign object, and it is possible to more efficiently detect the component P that has become a shortage.
- the mounting inspection apparatus 40 is detected based on the image processing based on the shortage size information of the smallest part P among the parts P related to the shortage. Foreign matter inspection is performed by ignoring foreign matters smaller than the smallest component P among the foreign matters. By doing so, when there are a plurality of missing parts P, the missing parts P can be detected more efficiently.
- the mounting inspection apparatus 40 also performs foreign object inspection on the sub-boards other than the sub-board on which the missing part is detected among the multi-sided boards. Therefore, even when there is a component P that is a missing item on a sub-board other than the sub-board on which the missing item is detected, the component P can be detected.
- the mounting inspection apparatus 40 displays the presence of the foreign object on the display unit 57.
- the position of the foreign matter on the substrate S is also displayed, the foreign matter on the substrate S can be efficiently removed based on the displayed position.
- the mounting inspection apparatus 40 gives the highest priority to the foreign matter inspection for the foreign matter inspection region including the periphery of the shortage position, and then performs the foreign matter inspection for the foreign matter inspection region including the shortage conveyance path.
- priority is given, it is not limited to this.
- the priorities of the two may be reversed. Or you may abbreviate
- the mounting inspection apparatus 40 sets the threshold Eth based on the missing part size information of the smallest part P among the parts P related to the missing part when there are a plurality of parts P related to the missing part.
- the foreign object inspection is performed by ignoring the foreign object smaller than the smallest component P, but the present invention is not limited to this.
- the mounting inspection apparatus 40 may set a predetermined value as the threshold value Eth regardless of the missing part size information. Further, when there are a plurality of parts P related to the shortage, a different threshold Eth may be set for each part P.
- the mounting inspection apparatus 40 uses the threshold Eth1 based on the part P1 for the foreign substance inspection area around the missing part position of the part P1 in step S240.
- the foreign matter inspection region around the missing part position of the component P2 may be subjected to the foreign matter inspection using the threshold Eth2 based on the component P2. The same applies to the foreign substance inspection in the foreign substance inspection area including the shortage conveyance path in step S290.
- one or more foreign substance inspection areas set on the basis of the missing part position or the shortage conveyance path are in a foreign substance inspection area that is less than the number of missing parts.
- a subsequent foreign object inspection area may be set based on information on the part P related to the foreign object inspection area in which no foreign object is detected. In other words, when a foreign object is detected, the subsequent processing may be performed on the assumption that the part P related to the foreign object inspection area where the foreign object has been detected is detected.
- the mounting inspection apparatus 40 detects one or more foreign substances in the foreign substance inspection area around the missing part position of the part P1 in step S240, and the missing part of the part P2 After no foreign matter is detected in the foreign matter inspection region around the position, in step S280, a foreign matter inspection region based on the missing item conveyance path of the component P2 is set, and the foreign matter inspection region based on the missing item conveyance route of the component P1 May not be set.
- the threshold Eth used in step S290 may also be reset based on the missing part size information of the part P2.
- the mounting inspection apparatus 40 when the substrate S is a multi-planar substrate, the mounting inspection apparatus 40 performs foreign matter inspection on a sub-substrate other than the sub-substrate on which the shortage is detected among the multi-planar substrates.
- the mounting inspection apparatus 40 may perform the foreign object inspection only on the child board in which the shortage is detected.
- the mounting inspection apparatus 40 may perform the foreign object inspection only on the child board in which the shortage is detected and the child board adjacent to the child board.
- the mounting inspection apparatus 40 displays the presence of foreign matter and the position of the foreign matter on the substrate S on the display unit 57, but is not limited to display as long as the notification is made.
- the mounting inspection device 40 may notify the worker by voice.
- the mounting inspection apparatus 40 does not perform the foreign object inspection on the substrate S in which the shortage is not detected by the shortage inspection, but is not limited thereto.
- the inspection control unit 41 inputs a foreign object inspection execution instruction from the operator via the operation unit 58, the foreign object inspection may be performed regardless of the result of the missing part inspection.
- the mounting inspection apparatus 40 uses the captured image data acquired in the shortage inspection also in the foreign object inspection.
- the captured image data may be separately acquired by the board camera 53 for the foreign object inspection. .
- the substrate S is a multi-sided substrate including a plurality of sub-substrates, but the substrate S is not limited to this and may be a single substrate.
- the mounting inspection apparatus 40 performs the missing part inspection and the foreign object inspection by comparing the pre-mounting reference image data and the post-mounting reference image data with the photographed image data, but is not limited thereto. Absent. For example, based on the brightness information of each pixel in the captured image data, the pixel that is the edge in the captured image data is detected, the contour of the object (part or foreign object) is detected based on the detected edge, and the detected object. In addition, based on the mounting condition information 86, a missing item inspection or a foreign matter inspection may be performed. Further, the mounting inspection apparatus 40 may perform a missing part inspection or a foreign matter inspection by a method other than image processing.
- the suction nozzle 34 of the mounting head 33 sucks the component P.
- the mounting head 33 is not limited to sucking the component P.
- the mounting head 33 may be configured to hook and hold the component P on the grip portion.
- the mounting inspection apparatus 40 having the function of the present invention has been described.
- the present invention is not particularly limited to this, and a mounting inspection method or a program form thereof may be used.
- the present invention can be used in the technical field of mounting inspection for inspecting the mounting state of components mounted on a substrate.
- 10 component mounting system 12 LAN, 20 mounting processing device, 21 mounting control unit, 22 CPU, 23 ROM, 24 RAM, 25 HDD, 30 substrate processing unit, 32 mounting processing unit, 33 mounting head, 34 suction nozzle, 35 head Moving unit, 37 supply unit, 38 parts camera, 39 input / output interface, 40 mounting inspection device, 41 inspection control unit, 42 CPU, 43 ROM, 44 RAM, 45 HDD, 50 substrate processing unit, 52 inspection processing unit, 53 substrate Camera, 54 Camera moving unit, 56 Operation panel, 57 Display unit, 58 Operation unit, 59 Input / output interface, 80 Management computer, 81 Control device, 82 CPU, 83 ROM, 84 RAM, 85 HDD, 6 mounting condition information, 87 input device, 88 display, 89 input and output interface, P parts, S substrate.
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Abstract
Description
基板上に実装された部品の欠品検査を行う欠品検査手段と、
前記欠品検査手段による前記欠品検査の結果に基づき、前記欠品が検出された基板に対して、該基板上の異物を検査する異物検査を行う異物検査手段と、
を備えたものである。
Claims (5)
- 基板上に実装された部品の欠品検査を行う欠品検査手段と、
前記欠品検査手段による前記欠品検査の結果に基づき、前記欠品が検出された基板に対して、該基板上の異物を検査する異物検査を行う異物検査手段と、
を備えた実装検査装置。 - 前記異物検査手段は、前記基板のうち前記欠品が検出された位置に関する情報である欠品位置情報を取得し、前記基板のうち前記欠品位置情報で特定される前記位置の周辺に対して優先的に前記異物検査を行う、
請求項1に記載の実装検査装置。 - 前記異物検査手段は、前記検出された欠品に係る部品を実装する際の前記基板上の搬送経路に関する情報である欠品搬送情報を取得し、前記基板のうち前記欠品搬送情報で特定される領域に対して優先的に前記異物検査を行う、
請求項1に記載の実装検査装置。 - 前記異物検査手段は、画像処理に基づいて前記異物検査を行うものであり、前記検出された欠品に係る部品の大きさに関する情報である欠品サイズ情報を取得し、該取得した欠品サイズ情報に基づいて、前記画像処理に基づいて検出された異物のうち前記欠品に係る部品よりも小さい異物を無視して前記異物検査を行う、
請求項1~3のいずれか1項に記載の実装検査装置。 - 前記基板は、複数の子基板を含む多面取り基板であり、
前記異物検査手段は、前記欠品検査手段により前記欠品が検出された前記多面取り基板に対して、該多面取り基板のうち該欠品が検出された子基板以外の1以上の子基板に対しても、前記異物検査を行う、
請求項1~4のいずれか1項に記載の実装検査装置。
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EP13893900.4A EP3048439B1 (en) | 2013-09-17 | 2013-09-17 | Mounting inspection device |
US15/021,042 US10420269B2 (en) | 2013-09-17 | 2013-09-17 | Mounting inspection device |
PCT/JP2013/075012 WO2015040667A1 (ja) | 2013-09-17 | 2013-09-17 | 実装検査装置 |
CN201380079577.XA CN105531582B (zh) | 2013-09-17 | 2013-09-17 | 安装检查装置 |
JP2015537442A JP6487327B2 (ja) | 2013-09-17 | 2013-09-17 | 実装検査装置 |
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EP (1) | EP3048439B1 (ja) |
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JP6913851B2 (ja) * | 2017-08-24 | 2021-08-04 | パナソニックIpマネジメント株式会社 | 実装基板製造システムおよび実装基板製造方法 |
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US20160227683A1 (en) | 2016-08-04 |
US10420269B2 (en) | 2019-09-17 |
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EP3048439A4 (en) | 2016-08-31 |
CN105531582A (zh) | 2016-04-27 |
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