WO2022254696A1 - 実装装置及び画像処理装置 - Google Patents
実装装置及び画像処理装置 Download PDFInfo
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- WO2022254696A1 WO2022254696A1 PCT/JP2021/021385 JP2021021385W WO2022254696A1 WO 2022254696 A1 WO2022254696 A1 WO 2022254696A1 JP 2021021385 W JP2021021385 W JP 2021021385W WO 2022254696 A1 WO2022254696 A1 WO 2022254696A1
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- 238000012545 processing Methods 0.000 title claims abstract description 185
- 238000003384 imaging method Methods 0.000 claims abstract description 106
- 238000007906 compression Methods 0.000 claims abstract description 105
- 230000006835 compression Effects 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 142
- 230000005856 abnormality Effects 0.000 description 82
- 230000002159 abnormal effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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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
- H05K13/0812—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines the monitoring devices being integrated in the mounting machine, e.g. for monitoring components, leads, component placement
Definitions
- This specification discloses a mounting device and an image processing device.
- a mounting device that mounts components on a substrate
- the side camera of the mounting apparatus described in Patent Document 1 captures images of nozzles and components positioned at each of a plurality of nozzle positions from the side, and the obtained images are arranged in the horizontal direction in the image. Image data representing the single image is obtained.
- the side camera can simultaneously image the nozzles and components located at a plurality of nozzle positions from the side.
- the captured image is used, for example, to determine whether or not the component is correctly held by the nozzle during the mounting process.
- the image obtained by imaging may be stored in a storage device so that it can be used after the fact, for example, to analyze an abnormality that has occurred in the mounting device.
- the image when obtaining image data obtained by imaging an object at a plurality of nozzle positions as in Patent Document 1, the image always includes images at a plurality of nozzle positions. There was a case where the capacity was squeezed.
- the present disclosure has been made to solve the above-described problems, and its main purpose is to reduce the amount of image data.
- the present disclosure has taken the following means to achieve the main purpose described above.
- a first mounting device of the present disclosure includes: A mounting device for mounting components on a substrate, a mounting head having a plurality of holders for holding the component at its tip; an imaging unit that captures a captured image including two or more of the plurality of holders; A region including the periphery of the tip of at least one of the holding bodies in the captured image is set as a target region, pixels in the captured image other than the target region are replaced with pixels of the same color, and the image after replacement is compressed by a predetermined amount.
- an image processing unit that performs post-compression image generation processing for generating a post-compression image compressed in a format; is provided.
- the imaging section captures a captured image including two or more of the plurality of holders. Then, the image processing unit replaces the pixels in the captured image other than the target region with the pixels of the same color, with the region including the periphery of the tip of at least one of the holding bodies as the target region in the captured image, and produces the image after replacement.
- Post-compression image generation processing is performed to generate a post-compression image compressed in a predetermined compression format. Since the compressed image generated in this way is a compressed image in which the portions other than the target area are replaced with pixels of the same color, the compression rate is improved compared to the case where the image is compressed without performing replacement. is doing. Therefore, the amount of image data (compressed image) can be reduced.
- FIG. 1 is a configuration diagram showing a schematic configuration of a mounting system 1 including a mounting apparatus 10;
- FIG. FIG. 2 is an explanatory diagram showing a schematic configuration of a mounting head 40;
- 4 is a plan view showing the arrangement of nozzles 44 and the schematic configuration of a side camera 80.
- FIG. FIG. 4 is an explanatory diagram showing the electrical connection relationship of the control device 90;
- FIG. 4 is an explanatory diagram showing an example of correspondence information 93a stored in an HDD 93;
- 4 is a flowchart showing an example of an implementation processing routine;
- 4 is a flowchart showing an example of an implementation processing routine;
- FIG. 5 is an explanatory diagram showing an example of an image captured after nozzle replacement and post-compression image generation processing for the image;
- FIG. 11 is an explanatory diagram showing an example of an image captured after picking up a component and an example of post-compression image generation processing for the image;
- FIG. 11 is an explanatory diagram showing an example of
- FIG. 1 is a configuration diagram showing a schematic configuration of a mounting system 1 including a mounting apparatus 10 of this embodiment
- FIG. 2 is an explanatory diagram showing a schematic configuration of a mounting head 40
- FIG. FIG. 4 is a plan view showing the configuration
- FIG. 1 the horizontal direction in FIG. 1 is the X-axis direction
- the front (front) and rear (back) directions are the Y-axis direction
- the vertical direction is the Z-axis direction.
- the mounting system 1 includes a mounting device 10 and a management device 100 that manages the mounting device 10, as shown in FIG.
- the mounting system 1 includes a mounting line in which a plurality of mounting apparatuses 10 for mounting a component P on a board 12 are arranged along the direction of transport of the board 12 (the X-axis direction).
- FIG. 1 shows only one mounting apparatus 10 in the mounting line.
- the mounting system 1 may include a solder printing machine, an inspection machine, a reflow oven, and the like on the same mounting line as the mounting apparatus 10 .
- the mounting apparatus 10 includes a component supply device 20, a substrate transfer device 25, an XY robot 30, a mounting head 40, a nozzle stocker 24, a parts camera 28, a mark camera 29, a side It has a camera 80 and a control device 90 (see FIG. 4).
- a plurality of component supply devices 20 are provided on the front side of the mounting device 10 so as to be aligned in the left-right direction (X-axis direction).
- the component supply device 20 is configured as a tape feeder that pulls out a tape 22 (see FIG. 3) containing components P at predetermined intervals from a reel 21 and feeds it at a predetermined pitch.
- the parts P accommodated in the tape 22 are protected by a film covering the surface of the tape 22. - ⁇ The parts P that have reached the predetermined parts supply position are in an exposed state with the film peeled off.
- the substrate transfer device 25 has a pair of conveyor belts 26, 26 (only one of which is shown in FIG. 1) that is provided in the front-rear direction and spanned in the left-right direction.
- the substrate 12 is transported by the conveyor belts 26, 26 and reaches a predetermined take-in position, it is supported by a large number of supporting pins 27 erected on the back side.
- the XY robot 30 spans a pair of left and right Y-axis guide rails 33, 33 provided along the front-rear direction (Y-axis direction) and a pair of left and right Y-axis guide rails 33, 33. and a Y-axis slider 34 .
- the XY robot 30 includes X-axis guide rails 31, 31 provided along the left-right direction (X-axis direction) on the front surface of the Y-axis slider 34, and an X-axis slider attached to the X-axis guide rails 31, 31. 32.
- the X-axis slider 32 can move in the X-axis direction by driving an X-axis motor 36 (see FIG.
- FIG. 4 the Y-axis slider 34 can move in the Y-axis direction by driving a Y-axis motor 38 (see FIG. 4). It is possible.
- Mounting head 40 , mark camera 29 and side camera 80 are attached to X-axis slider 32 .
- the mounting head 40, the mark camera 29, and the side camera 80 are moved to arbitrary positions on the XY plane by the movement of the XY robot 30.
- the mounting head 40 includes a head body 41, a nozzle holder 42, and a nozzle 44, as shown in FIG.
- the head main body 41 is a disk-shaped rotating body.
- a cylindrical reflector 41a capable of reflecting light is attached to the center of the lower surface of the head body 41 (see FIG. 3).
- a plurality of nozzle holders 42 are provided at predetermined intervals in the circumferential direction of the head main body 41, whereby the mounting head 40 is configured as a rotary head.
- the nozzle 44 is replaceably attached to the tip of each nozzle holder 42 .
- the nozzles 44 are attached to the head body 41 via nozzle holders 42 and arranged along the circumferential direction of the head body 41 . In FIG.
- the reflector 41a is omitted and eight nozzle holders 42 and eight nozzles 44 are shown in order to make the nozzle holder 42 easier to see. was set to 12. Therefore, the number of nozzle holders 42 is also twelve. As shown in FIG. 3, the twelve nozzles 44 are referred to as nozzles 44A to 44L counterclockwise in order from the nozzle 44 at the 8 o'clock position in FIG.
- the mounting head 40 also includes an R-axis driving device 50, a Q-axis driving device 60, and Z-axis driving devices 70,70.
- the two nozzle holders 42 positioned to engage with the Z-axis driving devices 70, 70 are indicated by solid lines, and the other nozzle holders 42 are indicated by dashed lines.
- the R-axis driving device 50 is a mechanism that rotates the plurality of nozzles 44 by rotating the head body 41 .
- the R-axis driving device 50 includes an R-axis 51, an R-axis motor 54, and an R-axis position sensor 55 (see FIG. 4).
- the R-axis 51 extends vertically and has a lower end attached to the central axis of the head body 41 .
- the R-axis motor 54 rotates a gear 53 meshing with an R-axis gear 52 provided at the upper end of the R-axis 51 .
- the R-axis position sensor 55 detects the rotational position of the R-axis motor 54 .
- the R-axis driving device 50 rotates the R-axis 51 via the gear 53 and the R-axis gear 52 by the R-axis motor 54 , thereby rotating the head body 41 .
- the plurality of nozzle holders 42 and the plurality of nozzles 44 rotate (revolve) in the circumferential direction together with the head body 41 . That is, by driving the R-axis driving device 50 , the plurality of nozzles 44 revolves along the revolving trajectory around the rotation axis of the head body 41 .
- the R-axis driving device 50 can intermittently revolve the nozzle 44 by a predetermined angle by intermittently rotating the head body 41 by a predetermined angle (for example, 30 degrees).
- nozzle positions N2 and N5 shown in FIG. 3 are working positions. At the work position, work such as replacement of the nozzle 44 and disposal of the part P collected by the nozzle 44 can also be performed.
- the nozzle positions N2 and N5 are positioned to face each other in the left and right with the central axis of the orbit of the nozzle 44 interposed therebetween.
- the nozzle position N2 is the left end position (9 o'clock position in FIG.
- the nozzle position N5 is the right end position (3 o'clock position in FIG. 3) of the nozzle 44 on the revolution locus.
- the nozzle 44L is located at the nozzle position N2
- the nozzle 44F is located at the nozzle position N5.
- the position of the nozzle 44 (the nozzle 44A in FIG. 3) one before the nozzle 44 is referred to as a nozzle position N1.
- the position of the nozzle 44 (nozzle 44K in FIG. 3) is called a nozzle position N3.
- nozzle position N4 immediately before the nozzle 44 (nozzle 44F in FIG. 3) positioned at the nozzle position N5 is called a nozzle position N4, and the nozzle 44 (nozzle 44F in FIG. 3) 3, the position of the nozzle 44E) is referred to as a nozzle position N6.
- the nozzle positions N1 and N4 are positions immediately before (immediately before) the working positions (nozzle positions N2 and N5) on the revolution trajectory of the nozzle 44, so they are also referred to as immediately preceding positions.
- the nozzle positions N3 and N6 are positions one after (immediately after) the working positions (nozzle positions N2 and N5) on the revolution locus of the nozzle 44, and therefore are also referred to as immediate positions.
- the nozzle positions N1, N3, N4, and N6 are positions for the side camera 80 to image at least one of the nozzle 44 and the component P held by the nozzle 44, and are also referred to as imaging positions.
- the imaging position is a position different from the working position, and the immediately preceding position and the immediately following position are the imaging positions.
- the Q-axis drive device 60 is a mechanism that synchronously rotates (rotates) the plurality of nozzles 44 .
- the Q-axis driving device 60 includes two upper and lower Q-axis gears 61 and 62, gears 63 and 64, a Q-axis motor 65, and a Q-axis position sensor 66 (see FIG. 4).
- the upper and lower Q-axis gears 61 and 62 are inserted coaxially and relatively rotatably with respect to the R-axis 51 .
- the gear 63 is provided on the upper portion of each nozzle holder 42 and meshes with the lower Q-axis gear 61 so as to be vertically slidable.
- the Q-axis motor 65 rotates a gear 64 meshing with the upper Q-axis gear 62 .
- a Q-axis position sensor 66 detects the rotational position of the Q-axis motor 65 .
- the Q-axis driving device 60 rotates the Q-axis gears 61 and 62 by the Q-axis motor 65 to rotate the gear 63 that meshes with the Q-axis gear 61, thereby causing the nozzle holders 42 to rotate in the same manner about their central axes. Rotate by the same rotation amount (rotation angle) in the direction.
- the plurality of nozzles 44 also rotate in synchronization with each other.
- the Z-axis drive devices 70, 70 are provided at two locations on the turning (orbiting) orbit of the nozzle holder 42, and are configured so that the nozzle holder 42 can be raised and lowered individually at the two locations.
- the Z-axis driving devices 70 and 70 are provided so as to face each other on both sides of the center of the head main body 41 .
- the position of the nozzle holder 42 at which the Z-axis driving device 70 can move up and down is called an up-and-down position.
- the elevation positions are the same positions as the working positions of the nozzles 44 in top view, that is, the nozzle positions N2 and N5.
- the Z-axis drive device 70 includes a Z-axis slider 71, a Z-axis motor 73, and a Z-axis position sensor 74 (see FIG. 4).
- the Z-axis slider 71 is attached to a vertically extending ball screw 72 so as to be able to move up and down.
- the Z-axis slider 71 has a sandwiching portion 71a that sandwiches the engaging piece 42a extending laterally from the nozzle holder 42.
- the Z-axis motor 73 raises and lowers the Z-axis slider 71 by rotating the ball screw 72 .
- the Z-axis position sensor 74 detects the vertical position of the Z-axis slider 71 .
- the Z-axis driving device 70 drives the Z-axis motor 73 to move the Z-axis slider 71 up and down along the ball screw 72 , thereby moving up and down the nozzle holder 42 and the nozzle 44 integrated with the Z-axis slider 71 .
- the engaging piece 42a of the nozzle holder 42 is sandwiched between the sandwiching portions 71a of the Z-axis slider 71. Therefore, the Z-axis driving device 70 raises and lowers the nozzle holder 42 and the nozzle 44 at the elevation position. Note that when the nozzle holder 42 revolves and moves from the elevated position, the engaging piece 42 a of the nozzle holder 42 comes out of the clamping portion 71 a of the Z-axis slider 71 .
- the nozzle 44 is a member that picks up the component P from the component supply device 20 and holds it.
- the nozzle 44 sucks and holds the part P at the tip (lower end) of the nozzle 44 when a negative pressure is supplied through a pressure regulating valve 46 (see FIG. 4), and when atmospheric pressure or positive pressure is supplied, the component P is held. Release part P.
- the nozzle stocker 24 is provided between the component supply device 20 and the substrate transfer device 25, as shown in FIG. A plurality of types of nozzles 44 can be stocked in the nozzle stocker 24 . By replacing the nozzle 44 between the nozzle stocker 24 and the mounting head 40, the nozzle 44 suitable for the size of the component P to be mounted can be attached to the mounting head 40. - ⁇
- the parts camera 28 is provided between the parts supply device 20 and the substrate transfer device 25, as shown in FIG.
- the parts camera 28 images the attitude of the part P sucked by the nozzle 44 from below.
- the mark camera 29 is provided on the bottom surface of the X-axis slider 32 .
- the mark camera 29 captures an image of a reference mark that the component supply device 20 has, or an image of a reference mark provided on the board 12 .
- the control device 90 specifies the position of the component P stored in the tape 22 and the position of the substrate 12 based on the position of the reference mark in the captured image.
- the side camera 80 is a device that captures a captured image including two or more of the multiple nozzles 44 .
- the side camera 80 takes an image of an object located at each of the four image pickup positions (nozzle positions N1, N3, N4, N6) from the side.
- the side camera 80 images at least one of the nozzle 44 positioned at the imaging position and the component P held by the nozzle 44 .
- the side camera 80 images the component P held by the nozzle 44 positioned at the imaging position.
- the side camera 80 is composed of a camera body 82 provided behind the nozzle 44 and a housing 84 having an optical system unit forming an optical path to the camera body 82 .
- the housing 84 is arranged to surround the left, right, and rear sides of the plurality of nozzles 44 .
- the housing 84 is formed with first to fourth inlets 86 a to 86 d at the left front, left rear, right rear, and right front positions of the head body 41 .
- the first to fourth inlets 86a to 86d are opposed to the nozzle positions N1, N3, N4 and N6 in a one-to-one correspondence.
- the housing 84 has a plurality of light emitters 87 such as LEDs that emit light toward the reflector 41a attached to the head main body 41 (four on the left and right in FIG. 3) on the outer peripheral surface on the side of the plurality of nozzles 44. each) is provided.
- the housing 84 has inside it a plurality of mirrors 88a-88k that reflect light.
- the housing 84 may include other optical systems such as a prism that refracts light, instead of or in addition to one or more of the mirrors 88a to 88k.
- the mirrors 88a to 88e are arranged on the left side of the housing 84, form an optical path indicated by the dashed line in the drawing, and direct the light incident from the first and second entrances 86a and 86b to the mirror 88k in front of the camera body 82. lead. For example, the light incident from the first entrance 86a is reflected by the mirrors 88a, 88c, 88d, and 88e in this order and reaches the mirror 88k.
- the mirrors 88f to 88j are arranged on the right side of the housing 84, form an optical path indicated by broken lines in the drawing, and guide the light incident from the third and fourth inlets 86c, 86d to the mirror 88k.
- the mirror 88k reflects the lights arriving from the first to fourth entrances 86a to 86d and guides them to the camera body .
- the side camera 80 includes an optical system unit having the first to fourth inlets 86a to 86d, the light emitter 87, and the mirrors 88a to 88k as described above.
- the light from each of the nozzle positions N1, N3, N4, and N6 reaches different regions of the imaging element of the camera body 82 and forms an image. Therefore, the camera body 82 captures images of the objects located at the nozzle positions N1, N3, N4, and N6 in one image capturing operation, and acquires a captured image in which the obtained images are arranged in one image. can do. Therefore, the camera body 82 can simultaneously image the nozzles 44 and the component P located at the nozzle positions N1, N3, N4, N6 from the side.
- the camera body 82 has objects positioned at nozzle positions N3, N1, N6, and N4 arranged in this order from left to right, as shown in the upper part of FIGS. 8 and 9, which will be described later.
- image data representing one picked-up image is acquired.
- the first to fourth inlets 86a to 86d and the mirrors 88a to 88k are arranged so that the direction in which the camera body 82 images each imaging position is along the radial direction of the revolution trajectory of the nozzle 44.
- the arrangement and shape are adjusted so that they are oriented toward the center of the revolution trajectory.
- the camera body 82 receives light emitted from the light emitter 87 and reflected by the reflector 41a. Therefore, in the captured image, the nozzle 44 and the part P that block the light appear as black shadows.
- the control device 90 is configured as a microprocessor centered around a CPU 91, and in addition to the CPU 91, it is equipped with a ROM 92, an HDD 93, a RAM 94, an input/output interface 95, and the like. These are connected via a bus 96 .
- the controller 90 receives detection signals from the XY robot 30, detection signals from the mounting head 40 (R-axis position sensor 55, Q-axis position sensor 66, Z-axis position sensors 74 and 74), and image signals from the parts camera 28. , an image signal from the mark camera 29 , an image signal from the side camera 80 , and the like are input via the input/output interface 95 .
- the component supply device 20, the substrate transfer device 25, the XY robot 30 (the X-axis motor 36 and the Y-axis motor 38), the mounting head 40 (the R-axis motor 54, the Q-axis motor 65, and the Z-axis Motors 73 , 73 ), pressure regulating valve 46 , parts camera 28 , mark camera 29 , side camera 80 and control signals are output via input/output interface 95 .
- the control device 90 is connected to the management device 100 so as to be capable of two-way communication, and exchanges data and control signals with each other.
- the HDD 93 is an example of a non-volatile memory that retains information even when the power is turned off, and stores correspondence information 93a as shown in FIG.
- the correspondence information 93a is information representing the correspondence between the imaging timing and the target area regarding the captured image acquired by the side camera 80 .
- the imaging timings are after nozzle replacement, when nozzle is abnormal, after picking parts, when picking is abnormal, before discarding parts, after discarding parts, before mounting parts, and after mounting parts.
- Information about the target area is associated with each of these timings.
- the target area is an area to be left as an image when processing the captured image by performing post-compression image generation processing, which will be described later.
- the target area is defined as an area including the tip periphery of at least one nozzle 44 in the captured image.
- the target area is set so as to include an area of the captured image that is used for various abnormality determinations in a mounting processing routine described later (an area of the captured image that is subject to abnormality determination).
- the correspondence information 93a shown in FIG. 5 includes information about the target nozzle position and information about the target range as the target area.
- the information about the target nozzle position is information about which of the imaging positions (here, nozzle positions N1, N3, N4, and N6) is to be the target region.
- each imaging timing is set to include one or more of a plurality of imaging positions.
- Information about the target range is information about how much of the target nozzle position is to be the target region.
- either “entire” or “near nozzle tip” is set for each imaging timing.
- the whole image of the nozzle positions N3 and N6 in the captured image is associated with the imaging timing "after nozzle replacement” as the target area.
- the image capturing timing of "before component mounting” is associated with "the periphery of the tip of the nozzle 44 in each image of the nozzle positions N1 and N4 in the captured image” as the target area.
- the management device 100 is a device that manages the mounting system 1 as a whole.
- the management device 100 includes a CPU 101, a ROM 102, an HDD 103, a RAM 104, and an input/output interface 105, as shown in FIG. These are electrically connected via bus 106 .
- the management device 100 also includes an input device 107 such as a keyboard and mouse, and a display 108 such as an LCD. An input signal is input from the input device 107 to the management device 100 via the input/output interface 105 . An image signal to the display 108 is output from the management device 100 via the input/output interface 105 .
- the management device 100 transmits and receives information to and from the control device 90 of the mounting device 10 via the input/output interface 105 .
- the HDD 103 of the management device 100 is an example of a non-volatile memory that retains information even when the power is turned off. It is
- the production program for the board 12 contains information about which component P is to be mounted at which position on which board 12 by the mounting machine 10 and in which order for each of the plurality of mounting machines 10 in the mounting system 1, as well as such information. It includes information such as how many mounted substrates 12 are to be manufactured.
- the production program also includes information on the height (thickness) of the part P.
- FIG. 6 and 7 are flowcharts showing an example of a mounting processing routine executed by the CPU 91 of the control device 90.
- FIG. This processing is executed when the control device 90 receives a production program from the management device 100 and is instructed to start production.
- the CPU 91 of the control device 90 first controls the board transfer device 25 to carry out the board transfer process of transferring the board 12 and supporting the board 12 with the support pins 27 (S100). Subsequently, the CPU 91 performs nozzle replacement-related processing (S110 to S170) for replacing the nozzles 44 attached to the mounting head 40 with nozzles 44 of a suitable type. The CPU 91 performs this nozzle replacement related process when the nozzle 44 is not attached to the mounting head 40 or when it is determined that one or more nozzles 44 need to be replaced based on the production program received from the management device 100. . If the nozzle 44 does not need to be replaced, the CPU 91 skips the nozzle replacement related process and performs the part extraction related process (S210 to S270).
- the CPU 91 first controls the XY robot 30 to move the mounting head 40 onto the nozzle stocker 24 (S110). Subsequently, the CPU 91 performs the nozzle exchange process and the post-exchange imaging process in parallel (S120).
- the nozzle replacement process is a process of controlling the mounting head 40 to replace the nozzles 44 positioned at the work positions (nozzle positions N2, N5).
- the CPU 91 controls the XY robot 30 and the Z-axis motor 73 to store the nozzle 44 located at the working position in the empty area in the nozzle stocker 24 and remove it.
- a nozzle 44 is attached to the nozzle holder 42 .
- the CPU 91 may replace the nozzles 44 positioned at the nozzle positions N2 and N5 simultaneously or sequentially. Further, when the nozzle 44 is not attached to the nozzle holder 42 at the working position, the CPU 91 omits the removing operation of the nozzle 44 and performs the attaching operation of the nozzle 44 .
- the CPU 91 controls the side camera 80 to image the nozzles 44 after the nozzle exchange process was performed in the previous S120 at positions immediately after (nozzle positions N3 and N6). Therefore, in S120, which is executed for the first time after starting the nozzle replacement-related process, the CPU 91 does not perform the post-exchange imaging process, but performs only the nozzle replacement process.
- the CPU 91 performs a post-compression image generation process for generating a post-compression image with a reduced data amount based on the image acquired in the post-replacement imaging process (S130), and based on the post-compression image, the nozzle after replacement.
- Nozzle abnormality determination processing for determining the presence or absence of abnormality in No. 44 is performed (S140).
- the CPU 91 omits the processing of S130 and S140 here, and the nozzle 44 is normal. I judge.
- the CPU 91 determines whether or not the exchange of all the nozzles 44 and the nozzle abnormality determination process have been completed (S150). (S160).
- the nozzle 44 subjected to the nozzle replacement process in S120 moves from the work position to the position immediately after.
- the nozzle holder 42 positioned immediately before moves to the working position.
- the CPU 91 executes the processing from S120 onwards. Therefore, the CPU 91 executes S120 for the second time. In the second S120, the CPU 91 executes the nozzle replacement process for the nozzle 44 positioned at the working position, and performs the nozzle replacement process for the nozzle 44 positioned immediately after (the nozzle 44 subjected to the nozzle replacement process in the first S120). After-exchange imaging processing is executed for the replacement. For example, if the nozzles 44A and 44G are positioned at the working position in the first S120, the nozzles 44A and 44G are subjected to the nozzle replacement process in the first S120, and are positioned in the working position in the second S120.
- the nozzle replacement process is performed for the nozzles 44B and 44H, and the post-replacement imaging process is performed for the nozzles 44A and 44G positioned immediately after. Therefore, in the post-replacement imaging process at this time, the image shown in the upper part of FIG. One image is captured including nozzles 44C and 44I.
- the CPU 91 performs post-compression image generation processing in S130.
- the CPU 91 specifies the target area in the captured image based on the imaging timing of the captured image to be processed this time and the correspondence information 93 a stored in the HDD 93 .
- the post-compression image generation process of S130 is performed on the image captured in the post-replacement imaging process of S120, that is, the image captured at the imaging timing after the nozzle replacement. Therefore, the CPU 91 refers to the correspondence relationship information 93a to specify the target region corresponding to the imaging timing after the nozzle replacement, that is, the entire image of the nozzle positions N3 and N6 in the captured image as the target region.
- the CPU 91 replaces pixels other than the specified target region in the captured image with pixels of the same color.
- pixels outside the target area are black pixels (for example, pixels with RGB tone values of (0, 0, 0) for color image pixels, and pixels with tone values for grayscale image pixels. (0) pixels). For example, if the captured image to be processed this time is the captured image shown in the upper row of FIG. By replacing, the captured image is changed to the image shown in the lower part of FIG.
- the CPU 91 generates a post-compression image by compressing the post-replacement image in a predetermined compression format, and stores the post-compression image in the HDD 93 .
- the compression format is JPEG.
- JPEG if pixels of the same color are consecutive, the compression rate increases. Therefore, the post-compression image generated as described above is a compressed image in which portions other than the target area are replaced with pixels of the same color. The compression rate is improved, and the amount of data becomes smaller.
- the compression format is not limited to JPEG, and may be any compression format that increases the compression rate by replacing areas other than the target area with pixels of the same color.
- the compression format may be PNG or GIF.
- the post-replacement imaging process is a process of imaging the nozzles 44 after the nozzle replacement at the position immediately after the nozzle replacement. No need. Therefore, by replacing the image of the immediately previous position (nozzle positions N1, N4) with pixels of the same color without including it in the target area, the compression rate is improved while the image of the necessary area (target area) is left, and the image data The data amount of (compressed image) is reduced.
- the CPU 91 performs nozzle abnormality determination processing in S140 based on the post-compression image.
- the CPU 91 acquires information about the shape of the nozzle 44, such as the position of the tip of the nozzle 44 and the thickness of the nozzle 44, in each image of the nozzle positions N3 and N6, for example, based on the post-compression image. .
- CPU91 determines the presence or absence of nozzle abnormality by whether the correct nozzle 44 exists in each of the nozzle positions N3 and N6 based on the acquired information.
- the CPU 91 determines in S150 that the nozzle replacement and nozzle abnormality determination processing has not been completed for all the nozzles 44.
- the process after S160 is executed. That is, the CPU 91 repeats S160 and S120 to S140.
- the CPU 91 determines in S150 that the nozzle replacement and nozzle abnormality determination processing for all nozzles 44 has been completed, it ends the nozzle replacement related processing and starts the component extraction related processing (S210 to S270).
- each of the nozzles 44A to 44L is replaced with an appropriate nozzle 44, and the compressed image generated in S130 for the replaced nozzles 44A to 44L (here, 6 compressed images) files are stored in the HDD 93 .
- the CPU 91 determines in S140 that there is an abnormality in the nozzle 44 at either of the nozzle positions N3 and N6, the CPU 91 performs nozzle abnormality processing including processing for replacing the nozzle 44 determined to have an abnormality with a correct nozzle 44. (S170).
- the CPU 91 revolves the nozzle 44 so that the nozzle 44 determined to have an abnormality is positioned at the working position. Then, the CPU 91 again performs the above-described nozzle replacement process, holder revolution process, post-replacement imaging process, post-compression image generation process, and nozzle abnormality determination process for the nozzle 44 in this order.
- the processing from S150 onwards is executed. If it is determined that there is an abnormality in the nozzle 44 even after performing the nozzle abnormality processing, the CPU 91 notifies the management device 100 of information to the effect that a nozzle replacement abnormality has occurred, and terminates this routine. good too.
- this nozzle abnormality processing only the nozzles 44 determined to be abnormal in S140 are processed. Therefore, as shown in FIG. 5, in the correspondence information 93a, the target area corresponds to "only the abnormal nozzle among the nozzle positions N3 and N6" and the target range corresponds to "whole” for the imaging timing of "nozzle abnormality". attached.
- the CPU 91 in the post-compression image generation processing during the nozzle abnormality processing, which is performed when only the nozzle 44 at the nozzle position N3 is determined to be abnormal in S140, the CPU 91, unlike the above-described S130, generates an image at the nozzle position N3.
- the target area is only the entire area. Therefore, the CPU 91 generates a post-compression image in which not only the images at the nozzle positions N1 and N4 but also the image at the nozzle position N6 in the picked-up image are replaced with black pixels, and stores the compressed image in the HDD 93 .
- the parts collection related processing (S210 to S270) will be explained.
- the component picking-related process is a process for causing each of the nozzles 44A to 44L to pick up and hold the part P. Similar to the nozzle replacement-related process described above, the work at the work position (here, the part P ) and imaging at the position immediately after are performed in parallel.
- the CPU 91 first controls the XY robot 30 to move the nozzle 44 above the component supply position of the component supply device 20 (S210). As shown in FIG. 3, the CPU 91 controls the XY robot 30 so that the nozzles 44 positioned at the working positions (nozzle positions N2, N5) are positioned directly above the component P positioned at the component supply position. to move.
- the CPU 91 performs the component picking process and the post-pickup imaging process in parallel (S220).
- the CPU 91 lowers the nozzle 44 located at the work position, applies negative pressure to the suction port of the tip surface of the nozzle 44, and removes the component P at the component supply position of the component supply device 20 from the tip surface. , and then the nozzle 44 is lifted.
- the CPU 91 may simultaneously pick up the component P with the nozzle 44 at the nozzle position N2 and pick up the component P with the nozzle 44 at the nozzle position N5, or may pick them up in order.
- the CPU 91 controls the side camera 80 to pick up an image of the nozzle 44 and the part P after the part picking process was performed in the previous S220 at the position immediately after (nozzle positions N3, N6).
- the CPU 91 performs a post-compression image generation process for generating a post-compression image based on the image acquired in the post-pickup imaging process (S230).
- Extraction abnormality determination processing for determining is performed (S240). If there is no abnormality in S240, the CPU 91 determines whether or not the picking of the parts P for all the nozzles 44 and the picking abnormality determination process have ended (S250). 44 is revolved (S260), and the processes after S220 are executed.
- the CPU 91 determines in S250 that the collection of the parts P and the collection abnormality determination process for all the nozzles 44 has ended, the CPU 91 ends the parts collection related process.
- the component-picking-related processing By performing the component-picking-related processing in this way, only the component-picking processing is performed in the first S220 after the start of the component-picking-related processing, and the component-picking processing and post-pickup imaging processing are performed in the second to sixth S220. is performed, and in the seventh S220, only the post-pickup imaging process is performed, and the picking of the parts P and the post-pickup imaging process for all the nozzles 44 are completed.
- the CPU 91 refers to the correspondence information 93a and refers to the target area corresponding to the imaging timing after part picking, that is, the nozzle positions N3 and N6 in the picked-up image.
- the area around the tip of the nozzle 44 in the image is identified as the target area.
- the position and size of the target area (near the tip of the nozzle 44) in the image may be determined in advance, but in this embodiment, the CPU 91 identifies the target area based on the information of each pixel in the captured image. .
- the CPU 91 first detects the contour of the nozzle 44 and the contour of the part P in the image by detecting the feature points of the pixels in the captured image (for example, the edge portion of the brightness value of the pixel).
- the tip (the boundary between the nozzle 44 and the part P) is specified.
- the CPU 91 determines the size and shape of the nozzle 44 to include the tip of the nozzle 44 and the entire part P.
- a region of interest in the image is set as the location region.
- the CPU 91 similarly to S130, the CPU 91 generates a post-compression image in which pixels outside the target area are replaced with black pixels, and stores the compressed image in the HDD 93.
- FIG. For example, if the captured image to be processed this time is the captured image in the upper row of FIG. , A6 are specified, and these areas A3 and A6 are set as target areas. Then, the CPU 91 changes the captured image to the image shown in the lower part of FIG. 9 by replacing pixels other than the areas A3 and A6 with black pixels, and then compresses the changed image to generate a compressed image.
- the CPU 91 determines whether there is an abnormality in the component P within the target area in each image at the nozzle positions N3 and N6 based on the compressed image. For example, the CPU 91 recognizes the position of the part P (for example, the lower end position of the part P) based on the compressed image, and the recognized position is information on the shape of the part P (for example, the thickness of the part P) included in the production program. ), and if it is within the allowable range, it is determined that there is no sampling abnormality.
- the CPU 91 determines that there is a collection abnormality when, for example, the part P is not held by the nozzle 44 in the first place, or when a part P of a different type from the correct part P is held by mistake. be able to.
- an abnormality judgment is performed for the component P picked and held by the nozzle 44 in the component picking processing.
- An image around the tip of the nozzle 44 (an image that should include the sampled part P) is sufficient. Therefore, in the post-compression image generation processing in S230, among the immediately following positions (nozzle positions N3 and N6), the area around the tip of the nozzle 44 is used as the target area, and the other areas are replaced with pixels of the same color. While leaving the image of the area (target area), the compression rate is improved to reduce the amount of image data (compressed image).
- the CPU 91 determines in S240 that the nozzle 44 at one of the nozzle positions N3 and N6 has a collection abnormality
- the CPU 91 performs collection abnormality processing including processing for making the nozzle 44 determined to have an abnormality collect the correct component P. (S270).
- the CPU 91 revolves the nozzle 44 so that the nozzle 44 determined to have the abnormal sampling is positioned at the working position. Then, the CPU 91 performs again the above-described component picking process, holder revolution process, post-pickup imaging process, post-compression image generation process, and picking abnormality determination process for the nozzle 44 in this order. Then, if it is determined that there is no sampling abnormality, the processing from S250 onwards is executed.
- the CPU 91 may notify the management device 100 of information indicating that a collection abnormality has occurred, and terminate this routine. Further, when the CPU 91 determines in S240 that at least one of the nozzles 44 at the nozzle positions N3 and N6 erroneously holds a component P of a different type from the correct component P, the nozzle 44 will be described later. After performing disposal-related processing to discard the part P held by the nozzle 44, the sampling abnormality processing of S270 may be performed. In the sampling abnormality processing of S270, only the nozzles 44 determined to be abnormal in S240 are processed. Therefore, as shown in FIG.
- the target area is "only the abnormal nozzle among the nozzle positions N3 and N6" and the target range is "near the tip of the nozzle” for the imaging timing of "abnormal collection”. are associated. Therefore, the CPU 91, for example, in the post-compression image generation processing during the sampling abnormality processing that is performed when it is determined that only the nozzle 44 at the nozzle position N3 is abnormal in S240, unlike the above-described S230, the image at the nozzle position N3 is Only the area around the tip of the nozzle 44 (area A3 in the example in the upper part of FIG. 9) is set as the target area.
- the CPU 91 moves the mounting head 40 above the parts camera 28 and moves the component P sucked by each nozzle 44 to the parts camera. 28, an image is taken from below (S300). Then, based on the captured image captured by the parts camera 28, the posture of the component P is recognized, and component abnormality determination processing is performed to determine whether or not there is an abnormality in the posture of each component P (S305). When it is determined in S305 that one or more of the parts P held by the plurality of nozzles 44 have an abnormality in the posture, the CPU 91 performs disposal-related processing (S310 to S380) for discarding the abnormal parts P. conduct.
- the CPU 91 first moves the mounting head 40 to a disposal position (not shown) (S310). Subsequently, the CPU 91 moves the nozzle 44 holding the part P to be discarded to the immediately preceding position (either nozzle position N1 or N4), and controls the side camera 80 to image the part P. Pre-imaging processing is performed (S320), and post-compression image generation processing is performed to generate a compressed image based on the captured image and store it in the HDD 93 (S330). Next, the CPU 91 moves the nozzle 44 holding the part P to be discarded to the work position, cancels the holding of the part P by the nozzle 44, and performs a discarding process of discarding the part P (S340).
- the CPU 91 moves the nozzle 44 holding the part P to be discarded to the immediate position (either the nozzle position N3 or N6), and controls the side camera 80 to image the nozzle 44 after the disposal process.
- Post-discard imaging processing is performed (S350), and post-compression image generation processing is performed to generate a compressed image based on the captured image and store it in the HDD 93 (S360).
- the CPU 91 performs disposal abnormality determination processing for determining whether or not there is an abnormality in disposal (whether the disposal has been performed normally) based on the compressed image before disposal and the compressed image after disposal generated in S330 and S360. (S370), and if there is no disposal abnormality, the disposal-related processing is terminated. Note that when there are a plurality of parts P to be discarded, the disposal-related processing may be repeated multiple times.
- the target area is "only nozzles to be discarded among the immediately preceding positions (nozzle positions N1, N4)"
- the target range is "Nozzle Tip Periphery” is associated.
- "only nozzles to be discarded in immediately after positions (nozzle positions N3, N6)" are associated as the target area
- "periphery of the nozzle tip” is associated as the target range.
- the CPU 91 identifies the periphery of the tip of the nozzle 44 of the nozzle to be discarded as the target region based on the correspondence information 93a, and makes the pixels other than the target region black. to generate a compressed image. For example, if the nozzle 44A is a nozzle to be discarded, the CPU 91 determines in S330 the tip of the nozzle 44 (nozzle 44A) of the image of the position (nozzle position N1 or nozzle position N4) immediately before the nozzle 44A exists in the captured image.
- the periphery is specified as the target area, and in S360, the tip periphery of the nozzle 44 (nozzle 44A) in the image immediately after the nozzle 44A exists (nozzle position N3 or nozzle position N6) is specified as the target area.
- the CPU 91 specifies the target area around the tip of the nozzle 44 in the image in S330, similarly to S230, based on the tip of the nozzle 44 specified based on the image and the part P (nozzle 44 to be discarded) included in the production program. and information on the correct height of the part P) that should be held by the P).
- the CPU 91 detects the contour of the nozzle 44 and the contour of the part P in the image by detecting the feature points of the pixels in the captured image (for example, the edge portion of the brightness value of the pixel), and detects the contour of the part P in the image.
- a region of interest may be specified as a region that includes the entirety (and the tip of nozzle 44).
- CPU91 sets the object area
- the CPU 91 identifies the position of the tip of the nozzle 44 in the image in S360, and based on the position of the tip, identifies an area having the same position and size as the target area identified in S330 as the target area in S360. You may This makes it possible to set target regions of the same position and size with the position of the tip of the nozzle 44 as a reference for the image before discarding and the image after discarding. Therefore, it becomes easy to perform abnormality determination using the compressed images before and after disposal in the disposal abnormality determination process.
- the CPU 91 discards the part P based on the compressed image including the appearance before disposal generated in S330 and the compressed image including the appearance after disposal generated in S360. is performed normally. For example, based on the difference in the value of each pixel of the compressed image before and after discarding, the CPU 91 determines that the discarding is normal when the part P that existed in the target area before discarding no longer exists after discarding. It is determined that there is no discarding error because it has been performed. On the other hand, if the part P still exists after being discarded, the CPU 91 determines that there is a discarding abnormality, and performs an error occurrence process of informing the management device 100 of information to the effect that the discarding abnormality has occurred. (S380), this routine is terminated.
- the CPU 91 When it is determined in S370 that there is no disposal abnormality, the CPU 91 performs post-disposal collection processing to cause the nozzle 44 to be discarded to collect the correct part P (S400).
- the post-abandonment sampling process is the same as the above-described abnormal sampling process in S270 for the nozzle 44 to be discarded.
- the correct part P is collected and held in the nozzle 44 to be discarded.
- the post-compression image generated in this post-disposal collection process is also stored in the HDD 93 .
- the CPU 91 determines the parts held by each of the nozzles 44A to 44L. Mounting-related processing (S420 to S470) for mounting P on the board 12 is performed.
- the CPU 91 first performs pre-mounting imaging processing, component mounting processing, and post-mounting imaging processing in parallel (S420).
- the CPU 91 controls the side camera 80 to capture an image of the nozzle 44 holding the component P before the component P is mounted at the immediately preceding position (nozzle positions N1, N4).
- the component mounting process is performed on the nozzles 44 that have undergone the pre-mounting imaging process in the previous S420 and are located at the work positions (nozzle positions N2 and N5).
- the CPU 91 moves the mounting head 40 so that the nozzle 44 at the working position is positioned directly above the mounting position of the component P on the substrate 12, and lowers the nozzle 44 to release the component P.
- the CPU 91 may mount the component P held by the nozzle 44 at the nozzle position N2 and mount the component P held by the nozzle 44 at the nozzle position N5 at the same time or sequentially.
- the CPU 91 controls the side camera 80 to image the nozzle 44 after the component mounting process has been performed in the previous S420 at the position immediately after (nozzle positions N3, N6). Since the side camera 80 simultaneously images the nozzle positions N1, N3, N4, and N6 as described above, the side camera 80 performs the pre-mounting imaging process and the post-mounting imaging process in S420 at the same time. One captured image can be acquired.
- the CPU 91 performs post-compression image generation processing in which a compressed image is generated based on the images acquired in the pre-mounting imaging process and the post-mounting imaging process and stored in the HDD 93 (S430).
- Mounting abnormality determination processing for determining whether or not there is an abnormality during mounting is performed (S440). If there is no abnormality in S440, the CPU 91 determines whether or not the component mounting process and the mounting abnormality determination process for all the nozzles 44 have ended (S450). is performed (S460), and the processes after S420 are executed. When the CPU 91 determines in S450 that the component mounting process and the mounting abnormality determination process have been completed for all the nozzles 44, the mounting related process is terminated.
- the pre-mounting imaging processing is performed in the first S420 after the mounting-related processing is started, and the pre-mounting imaging processing and the component mounting processing are performed in the second S420.
- pre-mounting imaging processing, component mounting processing, and post-mounting imaging processing are performed in the third to sixth S420.
- component mounting processing and post-mounting imaging processing are performed in the seventh S420. Only imaging processing is performed. As a result, pre-mounting imaging processing, component mounting processing, post-mounting imaging processing, and mounting abnormality determination processing are performed in this order for each of the plurality of nozzles 44 .
- the CPU 91 refers to the correspondence information 93a to identify the target region corresponding to at least one of the imaging timings before component mounting and after component mounting.
- a compressed image is generated by substituting black for pixels outside the target area in the captured image in .
- the pre-mounting imaging process is performed and the post-mounting imaging process is not performed.
- the corresponding target region that is, the periphery of the tip of the nozzle 44 in the images at the nozzle positions N1 and N4 in the captured image is specified as the target region.
- both the pre-mounting imaging process and the post-mounting imaging process are performed.
- the target region associated with the imaging timing after mounting that is, the periphery of the tip of the nozzle 44 in the images of the nozzle positions N1, N4, N3, and N6 in the captured image is specified as the target region.
- the pre-mounting imaging process is not performed but the post-mounting imaging process is performed.
- a region, that is, the periphery of the tip of the nozzle 44 in the image of the nozzle positions N3 and N6 in the captured image is specified as the target region.
- the target area corresponding to the imaging timing before component mounting (here, the tip periphery of the nozzle 44 in the images of the nozzle positions N1 and N4) is specified as the area including the tip of the nozzle 44 and the component P held by the nozzle 44. is preferred.
- This target area can be specified in the same manner as in the post-compression image creation process of S230 or S330 described above.
- the target area corresponding to the imaging timing after component mounting (here, the periphery of the tip of the nozzle 44 in the images at the nozzle positions N3 and N6) can be specified in the same manner as the post-compression image creation processing in S360, for example.
- the CPU 91 sets the target area corresponding to the imaging timing after component mounting to include the same area as the target area set in the image at the imaging timing before component mounting for the same nozzles 44 as the nozzles 44 included in the target area. It is preferable to set For example, when the nozzle 44A is positioned at the nozzle position N1 in the first S420 and an image including the nozzle 44A is captured, in the first S430, the nozzle position A region around the tip of the nozzle 44A located at N1 is specified. Then, in the third S420, an image including the nozzle 44A with the nozzle 44A positioned at the nozzle position N3 is captured.
- the CPU 91 identifies the position of the tip of the nozzle 44 (nozzle 44A) in the image of the nozzle position N3 based on the image captured in the third S420, and determines the position of the tip.
- an area having the same position and size as the target area specified in the image of the nozzle position N1 in the first S430 is specified as the target area in the image of the nozzle position N3 in the third S430.
- the CPU 91 includes the compressed image including the state of the nozzle 44 after component mounting generated in S430 and the state of the nozzle 44 before component mounting generated in S430 for the same nozzle 44. Based on the image after compression, it is determined whether or not the component P held by the nozzle 44 has been normally mounted. For example, consider the case where the nozzles 44A and 44G are located at the nozzle positions N1 and N4 in the first S420, and the nozzles 44A and 44G are located at the nozzle positions N3 and N6 in the third S420.
- the CPU 91 in the third S440, the CPU 91 generates the image of the nozzle position N3 in the compressed image generated in the third S430 (that is, the image after component mounting of the nozzle 44A) and the image generated in the first S430. Based on the image at the nozzle position N1 in the compressed image (that is, the image before the component is mounted on the nozzle 44A), it is determined whether or not the component P held by the nozzle 44A is normally mounted. For example, the CPU 91 determines if the component P held by the nozzle 44A that was present in the target region before mounting no longer exists after mounting based on the difference in the value of each pixel in the compressed image before and after mounting. , it is determined that the mounting is performed normally and that there is no mounting abnormality.
- the CPU 91 determines that the component P is brought back during mounting and that there is a mounting abnormality. Similarly, in the third S440, the CPU 91 generates the image of the nozzle position N6 in the compressed image generated in the third S430 (that is, the image after component mounting of the nozzle 44G) and the image generated in the first S430. Based on the image at the nozzle position N4 in the image after compression (that is, the image before component mounting of the nozzle 44G), it is determined whether or not the component P held by the nozzle 44G has been normally mounted.
- the CPU 91 If it is determined in S440 that at least one of the nozzles 44 (the nozzles 44 positioned at the nozzle positions N3 and N6) has a mounting abnormality (here, the component P is brought home), the CPU 91 performs the disposal-related processing described above. The same processing as the processing (S310 to S380) is performed to discard the part P that has been taken away (S470), and the processing from S450 onwards is executed.
- the CPU 91 When it is determined in S450 that the component mounting process and the mounting abnormality determination process have been completed for all the nozzles 44, the CPU 91 performs the post-compression image generation process (S130, S230, S330, S360, S430) executed so far in the mounting process routine.
- Aggregate file generation processing for generating an aggregate file by collecting a plurality of created compressed images into one file, and aggregate file transmission processing for transmitting the created aggregate file to the management device 100 are performed (S500).
- the post-compression image generation processes of S130 and S230 are each performed six times, and the post-compression image generation process of S430 is performed eight times, and a total of 20 post-compression images are stored in the HDD 93 .
- the CPU 91 combines these compressed images and arranges them side by side (for example, arranging them in the order of shooting from top left to bottom right) to form a single image.
- As a file generate an aggregate file.
- the set file is an image file compressed in a predetermined compression format, like the compressed image, and is a JPEG format file in this embodiment.
- one set file is stored in the HDD 93 instead of multiple compressed images.
- the CPU 91 transmits the created collective file to the management device 100 .
- the set file is stored in the HDD 103 of the management device 100 .
- the CPU 91 may delete the set file from the HDD 93 after the set file transmission process.
- the CPU 91 may add identification information for identifying each of the multiple compressed images in the set file to the set file in the set file generation process.
- identification information may be pasted as an image in each area (image) of a plurality of compressed images in the set file.
- the identification information includes, for example, the imaging date and time, the imaging timing, the imaging number indicating which image is taken, and the position information indicating which nozzle position the target area is. One or more of them may be included.
- the CPU 91 determines whether or not the mounting process for the current board 12 has been completed (S510), and if not completed, executes the processes from S110 onwards. That is, the CPU 91 performs the process related to nozzle replacement as necessary, and then performs the process related to component picking, the process related to mounting, and the like, and mounts the component P on the board 12 .
- the CPU 91 causes the board conveying device 25 to discharge the board 12 that has been mounted (S520), and ends this routine.
- the CPU 91 executes the mounting process routine again from S100.
- the mounting apparatus 10 of the present embodiment corresponds to the mounting apparatus and the image processing apparatus of the present disclosure
- the mounting head 40 corresponds to the mounting head
- the side camera 80 corresponds to the imaging unit
- the control device 90 that executes the processes of S130, S230, S330, S360, and S430 of the processing routine corresponds to the image processing section.
- the control device 90 that executes the processing of S500 of the mounting processing routine shown in FIG. 7 corresponds to the set file generation unit.
- the side camera 80 detects two or more of the plurality of nozzles 44 (44A to 44L) (here, four nozzles 44 positioned at nozzle positions N1, N3, N4, and N6).
- a captured image (for example, the images in the upper part of FIG. 8 and the upper part of FIG. 9) is picked up.
- the control device 90 replaces the pixels of the captured image other than the target region with pixels of the same color, with the region including the periphery of the tip of at least one nozzle 44 in the captured image as the target region, and the image after replacement ( For example, post-compression image generation processing is performed to generate post-compression images obtained by compressing the images shown in the lower part of FIG. 8 and the lower part of FIG.
- the mounting apparatus 10 can reduce the amount of image data (compressed image). As a result, for example, the area used for storing image data in the HDD 93 can be reduced.
- control device 90 determines the Identify an area of interest. This allows the control device 90 to appropriately identify the target area based on the imaging timing.
- control device 90 performs a set file generation process for generating a set file by collecting a plurality of post-compression images generated by performing post-compression image generation processing on each of the plurality of captured images into one file.
- a plurality of compressed images are grouped into one set file, so the number of files can be reduced compared to the case where the plurality of compressed images are kept as separate files.
- a plurality of compressed images are arranged to generate an aggregate file in the format of one image file, so the header information of the file can be reduced. For example, if multiple compressed images are to be kept as separate files, there will be header information for each of these files.
- this embodiment only the header information of one set file exists, and the amount of data of the header information can be reduced. This also makes it possible to reduce the amount of image data.
- the control device 90 performs collective file transmission processing for transmitting the generated collective file to the management device 100 .
- the mounting system 1 includes a plurality of mounting apparatuses 10 , and a large number of set files transmitted from each of the plurality of mounting apparatuses 10 are stored in the HDD 103 of the management apparatus 100 . Even in such a case, since the image in the set file is replaced with the same color for pixels other than the target area in the captured image as described above, the compression rate is improved and the data amount is reduced. The area used for storing the image data (aggregate file) can be reduced.
- the image data does not easily occupy the storage capacity of the HDD 103, so it becomes easy to save (store) a large amount of image data for a long period of time. Therefore, it becomes easier to use the past image data for analysis of an abnormality that occurred in the mounting apparatus 10, for example, and it becomes easier to investigate and solve the cause of the abnormality. Furthermore, since the mounting apparatus 10 does not transmit a plurality of compressed images to the management apparatus 100 as separate image data, but collects them into one set file and then transmits them to the management apparatus 100, the number of image data files stored in the HDD 103 is can be reduced. As a result, fragmentation of the HDD 103 can be suppressed.
- a similar effect can be obtained in the HDD 93 of the mounting apparatus 10, but since image data is transmitted from a plurality of mounting apparatuses 10 to the HDD 103, the amount of image data stored in the HDD 103 can be reduced or the number of files can be reduced. It is highly meaningful to reduce it.
- FIG. 10 is an explanatory diagram showing an example of post-compression image generation processing according to the modification.
- FIG. 10 is an example in which the entire image of nozzle positions N3 and N6 is the target area, as in FIG. When the captured image to be processed this time is the captured image in the upper row of FIG.
- the CPU 91 cuts out and arranges the entire image of the target area, that is, the nozzle positions N3 and N6, from the captured image, thereby processing the captured image as shown in FIG. A new image shown in the lower part of is generated, and a post-compression image is generated by compressing the image. Even when the post-compression image generation process is performed in this way, the number of pixels in the new image is smaller than that of the image before cropping. after image) can be reduced.
- CPU91 may delete the data of the captured image of the upper stage of FIG. 10, when a new image is produced
- the CPU 91 combines a plurality of compressed images to generate one image file as a set file in the set file generation process of S500, but the present invention is not limited to this.
- the CPU 91 may generate, as a set file, a single file in which a plurality of post-compression images are kept in a state of being a plurality of post-compression images without being combined into one image.
- the CPU 91 may generate an MNG-format aggregate file in which a plurality of compressed images are grouped into one file.
- the data amount of the header information cannot be reduced, but the number of files can be reduced.
- the CPU 91 collects a plurality of compressed images created in the compressed image generation processing (S130, S230, S330, S360, S430) executed so far in the implementation processing routine into one file.
- the timing of generating the set file and the unit of group of compressed images to be included in one set file can be changed as appropriate.
- the CPU 91 collects the compressed images generated during each process into a set file at the end of each of the nozzle replacement-related process, component extraction-related process, disposal-related process, and mounting-related process.
- the CPU 91 may combine a plurality of post-compression images having the same imaging timing such as after nozzle replacement or before parts disposal into one set file.
- the CPU 91 may combine a plurality of post-compression images generated during processing for one substrate 12 into one set file. For example, when the CPU 91 determines in S510 that the mounting process for the current board 12 has been completed, the CPU 91 may collect a plurality of post-compression images created so far in the mounting process routine into one set file. Also, the timing at which the CPU 91 transmits the set file to the management device 100 is not limited to the above embodiment. For example, the CPU 91 may collectively transmit a plurality of set files to the management device 100 after the set files are generated. Also, the CPU 91 may continue to store the set file in the HDD 93 without transmitting it to the management device 100 .
- the CPU 91 generates a set file in S500 and transmits it to the management device 100, but does not generate a set file and transmits the plurality of compressed images to the management device 100 as they are.
- the compressed image may be kept stored in the HDD 93 .
- the data amount of the compressed image is small as described above, the effect of reducing the area used for storing image data in the HDD 93 and HDD 103 can be obtained.
- the CPU 91 specified the target area based on the correspondence information 93a, but the correspondence information 93a is not limited to the example shown in FIG.
- the target area is set to include a required area of the captured image (for example, an area used for abnormality determination in the nozzle abnormality determination process in S140 in the case of an image captured in the post-replacement imaging process in S120).
- the target range associated with the image pickup timing after picking up the component may be the entire target nozzle position instead of the vicinity of the tip of the nozzle.
- the target nozzle positions associated with the imaging timing when the nozzle is abnormal may be always both the nozzle positions N3 and N6 instead of only the abnormal nozzle.
- twelve nozzles 44 are arranged on the circumference at regular intervals, but the number of nozzles 44 is not limited to twelve, and may be, for example, eight, twenty, or twenty-four. It may be set as an individual. Also, the number of nozzles 44 may be even or odd.
- the side camera 80 captures one captured image in which the objects positioned at the nozzle positions N3, N1, N6, and N4 are arranged in this order from left to right as shown in the upper part of FIG. , but not limited to this.
- the side camera 80 may capture one captured image in which the objects positioned at the nozzle positions N3, N1, N6, and N4 are arranged at the upper left, upper right, lower left, and lower right, respectively.
- the mounting head 40 was provided with the nozzle 44 that sucks the component P using negative pressure, but the mounting head 40 is not limited to the nozzle 44 as long as it is provided with a holder that holds the component.
- the mounting head 40 may have a mechanical chuck that grips and holds the component P instead of the nozzle 44 .
- the mounting apparatus 10 serves as both the mounting apparatus of the present disclosure and the image processing apparatus, but is not limited to this.
- an image processing device different from the mounting device 10 may acquire the captured image from the mounting device 10 and perform the post-compression image generation processing and the assembly file generation processing described above.
- the management device 100 may perform post-compression image generation processing and set file generation processing.
- a plurality of devices may cooperate to perform post-compression image generation processing and set file generation processing.
- the mounting device 10 and the management device 100 cooperate to perform these processes, the mounting device 10 and the management device 100 correspond to the image processing device of the present disclosure.
- the HDD 93 and HDD 103 store compressed images and set files, but not only the HDD but also a non-volatile storage unit that stores images may store them.
- the present disclosure may be configured as follows.
- a second mounting device of the present disclosure includes: A mounting device for mounting components on a substrate, a mounting head having a plurality of holders for holding the component at its tip; an imaging unit that captures a captured image including two or more of the plurality of holders; A region including the periphery of the tip of at least one of the holding bodies in the captured image is defined as a target region, pixels of the target region are extracted from the captured image to form a new image, and the new image is compressed in a predetermined compression format. an image processing unit that performs post-compression image generation processing for generating a compressed post-compression image; is provided.
- the imaging section captures a captured image including two or more of the plurality of holders. Then, the image processing unit sets a region including the periphery of the tip of at least one holding member in the captured image as a target region, cuts out pixels in the target region from the captured image, creates a new image, and compresses the new image by a predetermined compression. A post-compression image generation process is performed to generate a post-compression image compressed in the format. In this way, the number of pixels in the new image is smaller than that of the image before cropping, so the amount of image data (image after compression) is reduced compared to the case where an image captured without cropping is compressed as it is. can be made smaller.
- the image processing unit includes, in the post-compression image generation processing, an imaging timing of the captured image and a predetermined correspondence between the imaging timing and the target region.
- the target area in the captured image may be specified based on the relationship and the relationship.
- the image processing section can appropriately identify the target area based on the imaging timing.
- at the imaging timing for example, after the mounting head holds the holding body, after the holding body holds the component, before mounting the component held by the holding body, the component held by the holding body is mounted.
- One or more timings of after discarding the component held by the holder and after discarding the component held by the holder may be included.
- the imaging timing may include an imaging order. Further, even if the correspondence relationship between the imaging timing and the target area includes the correspondence relationship between the imaging timing and the information that can specify the holder included in the target area among the plurality of holders in the captured image. good.
- the first mounting apparatus or the second mounting apparatus of the present disclosure stores a plurality of post-compression images generated by performing the post-compression image generation processing on each of the plurality of captured images by the image processing unit into one file.
- the set file may be one image file generated by combining a plurality of compressed images, or may be a file in which a plurality of compressed images are not combined into one image. good.
- the first image processing device of the present disclosure is An image processing apparatus for performing image processing on a captured image including two or more of the plurality of holders in a mounting apparatus that includes a mounting head having a plurality of holders that hold a component at the tip thereof and mounts the parts on a board. and A region including the periphery of the tip of at least one of the holding bodies in the captured image is set as a target region, pixels in the captured image other than the target region are replaced with pixels of the same color, and the image after replacement is compressed by a predetermined amount.
- an image processing unit that performs post-compression image generation processing for generating a post-compression image compressed in a format; is provided.
- the image processing section performs the same processing as the image processing section of the first mounting device of the present disclosure described above. Therefore, this image processing apparatus can reduce the amount of image data (compressed image).
- this first image processing apparatus various aspects of the above-described mounting apparatus of the present disclosure may be employed, or a configuration for realizing each function of the above-described mounting apparatus of the present disclosure may be added. .
- a second image processing device of the present disclosure includes: An image processing apparatus for performing image processing on a captured image including two or more of the plurality of holders in a mounting apparatus that includes a mounting head having a plurality of holders that hold a component at the tip thereof and mounts the parts on a board. and A region including the periphery of the tip of at least one of the holding bodies in the captured image is defined as a target region, pixels of the target region are extracted from the captured image to form a new image, and the new image is compressed in a predetermined compression format.
- an image processing unit that performs post-compression image generation processing for generating a compressed post-compression image; is provided.
- the image processing section performs the same processing as the image processing section of the second mounting device of the present disclosure described above. Therefore, this image processing apparatus can reduce the amount of image data (compressed image).
- this second image processing apparatus various aspects of the above-described mounting apparatus of the present disclosure may be adopted, or a configuration for realizing each function of the above-described mounting apparatus of the present disclosure may be added. .
- the present invention can be used in various industries that perform work to mount components on boards.
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Abstract
Description
部品を基板に実装する実装装置であって、
先端に前記部品を保持する保持体を複数備えた実装ヘッドと、
複数の前記保持体のうちの2以上を含む撮像画像を撮像する撮像部と、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域以外の画素を同じ色の画素に置換し、置換後の画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部と、
を備えたものである。
部品を基板に実装する実装装置であって、
先端に前記部品を保持する保持体を複数備えた実装ヘッドと、
複数の前記保持体のうちの2以上を含む撮像画像を撮像する撮像部と、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域の画素を切り出して新たな画像とし、該新たな画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部と、
を備えたものである。
先端に部品を保持する保持体を複数備えた実装ヘッド、を備え前記部品を基板に実装する実装装置における、複数の前記保持体のうちの2以上を含む撮像画像の画像処理を行う画像処理装置であって、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域以外の画素を同じ色の画素に置換し、置換後の画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部、
を備えたものである。
先端に部品を保持する保持体を複数備えた実装ヘッド、を備え前記部品を基板に実装する実装装置における、複数の前記保持体のうちの2以上を含む撮像画像の画像処理を行う画像処理装置であって、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域の画素を切り出して新たな画像とし、該新たな画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部、
を備えたものである。
Claims (6)
- 部品を基板に実装する実装装置であって、
先端に前記部品を保持する保持体を複数備えた実装ヘッドと、
複数の前記保持体のうちの2以上を含む撮像画像を撮像する撮像部と、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域以外の画素を同じ色の画素に置換し、置換後の画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部と、
を備えた実装装置。 - 部品を基板に実装する実装装置であって、
先端に前記部品を保持する保持体を複数備えた実装ヘッドと、
複数の前記保持体のうちの2以上を含む撮像画像を撮像する撮像部と、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域の画素を切り出して新たな画像とし、該新たな画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部と、
を備えた実装装置。 - 前記画像処理部は、前記圧縮後画像生成処理において、前記撮像画像の撮像タイミングと、該撮像タイミングと前記対象領域との所定の対応関係と、に基づいて、該撮像画像中の前記対象領域を特定する、
請求項1又は2に記載の実装装置。 - 請求項1~3のいずれか1項に記載の実装装置であって、
前記画像処理部が複数の前記撮像画像の各々について前記圧縮後画像生成処理を行って生成した複数の前記圧縮後画像を1つのファイルにまとめて集合ファイルを生成する集合ファイル生成部、
を備えた実装装置。 - 先端に部品を保持する保持体を複数備えた実装ヘッド、を備え前記部品を基板に実装する実装装置における、複数の前記保持体のうちの2以上を含む撮像画像の画像処理を行う画像処理装置であって、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域以外の画素を同じ色の画素に置換し、置換後の画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部、
を備えた画像処理装置。 - 先端に部品を保持する保持体を複数備えた実装ヘッド、を備え前記部品を基板に実装する実装装置における、複数の前記保持体のうちの2以上を含む撮像画像の画像処理を行う画像処理装置であって、
前記撮像画像のうち少なくとも1つの前記保持体の先端周辺を含む領域を対象領域として、該撮像画像のうち該対象領域の画素を切り出して新たな画像とし、該新たな画像を所定の圧縮形式で圧縮した圧縮後画像を生成する圧縮後画像生成処理を行う画像処理部、
を備えた画像処理装置。
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