JP4757963B2 - Electronic component mounting device - Google Patents

Description

  In the present invention, each electronic component supplied to a component suction position from a predetermined component supply unit is picked up by a plurality of suction nozzles provided in a mounting head, and a plurality of electronic components sucked and held by these suction nozzles This invention relates to an electronic component mounting apparatus in which a component recognition camera captures images in a batch and recognizes the recognition processing device.

When an electronic component picked up and held by the suction nozzle is imaged by the component recognition camera and judged to be abnormal, for example, recognition failure (including poor posture or abnormal suction) has occurred due to lead bending of the electronic component, so-called standing suction, etc. Sometimes it is collected in a parts collection box (see, for example, Patent Document 1).
JP 2003-69287 A

  However, the component recognition camera picks up a plurality of electronic components sucked and held by a plurality of suction nozzles and performs recognition processing. However, even if an image including an electronic component determined to be abnormal is displayed later on the display device It is difficult for an administrator to identify which electronic component is abnormally recognized.

  Therefore, according to the present invention, a plurality of electronic components sucked and held by a plurality of suction nozzles are collectively imaged and recognized by a component recognition camera, and stored in a storage device when any of the electronic components is abnormally recognized. It is intended to display so that it can be understood which electronic component is recognized abnormally based on the displayed image.

  Therefore, according to the first aspect of the present invention, each electronic component supplied from the predetermined component supply unit to the component suction position is picked up by a plurality of suction nozzles provided in the mounting head, and held by these suction nozzles. In an electronic component mounting apparatus in which a component recognition camera collectively captures a plurality of electronic components and performs recognition processing with a recognition processing device, a determination device that determines whether or not the result of recognition processing by the recognition processing device is a recognition error; When it is determined that any one of the electronic components is abnormal in recognition by the determination device, it is determined that there is a storage device that stores images of a plurality of electronic components that are collectively captured by the component recognition camera, and that there is a recognition abnormality. A calculation device that calculates the display target coordinate position of the electronic component based on the image stored in the storage device, and an image of the electronic component at the display target coordinate position calculated by the calculation device Characterized in that a display device to enlarge.

  In the second invention, each electronic component supplied to a component suction position from a predetermined component supply unit is picked up by a plurality of suction nozzles provided in the mounting head, and a plurality of suction components held by these suction nozzles are held. A determination device that determines whether or not a result of recognition processing by the recognition processing device is a recognition abnormality in an electronic component mounting device in which the component recognition camera collectively captures electronic components and performs recognition processing by the recognition processing device, and this determination When it is determined that any of the electronic components is abnormally recognized by the apparatus, the storage device that stores the captured image and the display target coordinate position of the electronic component that is determined to be abnormally recognized are stored in the storage device. A calculation device that calculates based on a stored image, and displays images of a plurality of electronic components that are collectively captured by the component recognition camera, and a display pair calculated by the calculation device Characterized in that a display device and which displays to surround the image of the electronic component of the coordinate position.

  According to a third invention, in the first or second invention, the display device displays the suction nozzle set by the setting device.

  According to a fourth invention, in the first or second invention, the display device displays a component supply unit set by a setting device.

  According to the present invention, an image of an electronic component at a display target coordinate position of a suction nozzle in which recognition abnormality has occurred or a set suction nozzle among a plurality of suction nozzles that have sucked an electronic component is enlarged, or the component recognition camera is collectively displayed. While displaying images of a plurality of electronic components captured in this way, it is possible to specifically display so as to surround the image of the electronic component at the display target coordinate position. It is optimal for monitoring (controlling) the suction state of a specific suction nozzle and the suction state of a specific electronic component, and can greatly improve the work efficiency.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an electronic component mounting apparatus 1, and a plurality of component supply units 3 for supplying various electronic components one by one to their component extraction positions (component adsorption positions) on a base 2 of the apparatus 1. It is installed side by side. A supply conveyor 4, a positioning unit 5, and a discharge conveyor 6 are provided between the opposing supply unit 3 groups. The supply conveyor 4 conveys the printed circuit board P received from the upstream device to the positioning unit 5, and electronic components are mounted on the substrate P positioned by the positioning mechanism (not shown) in the positioning unit 5. Then, it is conveyed by the discharge conveyor 6, and is conveyed to a downstream apparatus.

  Reference numeral 8 denotes a pair of beams that are long in the X direction. The screw shaft 10 is rotated by driving a Y-axis drive motor 9, and a component take-out part (component suction unit) of the printed circuit board P and the component supply unit 3 is aligned along a pair of left and right guides 11. Position) Move upward in the Y direction individually.

  Each beam 8 is provided with a head mounting body 12 that moves along the guide in the longitudinal direction, that is, in the X direction, by an X-axis drive motor 15. As shown in FIG. The body 12 is provided with a mounting head 7 having a plurality of suction nozzles 13. The mounting head 7 is equipped with a vertical axis drive motor 16 for moving the suction nozzle 13 up and down, and a θ-axis drive motor 17 for rotating around the vertical axis. Therefore, the suction nozzle 13 of the mounting head 7 can move in the X direction and the Y direction, can rotate about the vertical axis, and can move up and down.

  Reference numeral 18 denotes a component recognition camera that captures an image of the electronic component D in order to recognize the position of the electronic component D with respect to the suction nozzle 13 with respect to the XY direction and the rotation angle.

  Next, FIG. 2 is a control block diagram of the electronic component mounting apparatus 1. Reference numeral 30 denotes a CPU as a control unit that performs overall control of operations related to the mounting of the mounting apparatus. Reference numeral 31 denotes an X direction (indicated by X) and Y direction in the printed circuit board P for each mounting order (step number) of electronic components. Mounting data consisting of position information (indicated by Y), angle (indicated by Z), arrangement number information of each component supply unit 3, and nozzle position information indicating the position of the suction nozzle used in the mounting head (see FIG. 3) And component placement data (see FIG. 4) indicating the type (component ID) of each electronic component corresponding to the placement number of each component supply unit 3 and what suction nozzle (nozzle ID) is used, and which mounting head 7 (see FIG. 5), which indicates which suction nozzle (nozzle ID) is mounted at which position (indicated by the nozzle number) of 7 (head 1 is the front mounting head, head 2 is the back) RAM for storing parts library data and the like made of the size of electronic components for each electronic component (Random Access Memory), 32 denotes a ROM for storing a program - (read only memory).

  The CPU 30 controls the operation related to the component mounting operation of the electronic component mounting apparatus according to the program stored in the ROM 32 based on the data stored in the RAM 31. That is, the CPU 30 controls the driving of the X-axis drive motor 15, the Y-axis drive motor 9, the vertical axis drive motor 16, and the θ-axis drive motor 17 via the drive circuit 33.

  A recognition processing device 34 is connected to the CPU 30 via the interface 35. The recognition processing device 34 performs recognition processing of an image captured by the component recognition camera 18, and the processing result is sent to the CPU 30. Is sent out. That is, the CPU 30 outputs an instruction to the recognition processing device 34 so as to perform recognition processing (calculation of misalignment amount, etc.) on the image captured by the component recognition camera 18 and receives the recognition processing result from the recognition processing device 34. Is.

  That is, when the amount of positional deviation of the electronic component D is grasped by the recognition processing of the recognition processing device 34, the result is sent to the CPU 30, and the CPU 30 moves the beam 8 to Y to correct the positional deviation of the electronic component D. By moving the mounting head 7 in the Y direction by driving the shaft driving motor 9 and by moving the mounting head 7 in the X direction by driving the X axis driving motor 15, and by rotating the θ by the θ axis driving motor 17, around the X, Y and vertical axes. The rotation angle position is corrected.

  The image picked up by the component recognition camera 18 is displayed on a monitor 36 as a display device. The monitor 36 is provided with various touch panel switches 37. When an operator operates the touch panel switch 37, various settings including setting of image storage conditions as shown in FIG. 6 can be performed. . That is, the image storage condition can be set by pressing a predetermined switch portion of the touch panel switch 37. As shown in FIG. 6, the image processing result is OK (recognition is good), NG (recognition is abnormal), The image can be set to be stored and saved in the RAM 31 at any time of OK and NG, and the suction nozzle number can be designated by pressing the numeric switch unit in order to set the object to be saved, The feeder number of the component supply unit (arrangement number of the component supply unit) can be designated. Here, the image is stored only at the time of NG (recognition abnormality) when the image processing result is a recognition failure (including posture failure and suction abnormality) due to, for example, lead bending of electronic parts or so-called standing suction. Further, the suction nozzle number is designated as “1”.

  The touch panel switch 37 has a transparent conductive film coated on the entire surface of a glass substrate, and electrodes are printed on four sides. For this reason, when a very small current is passed through the surface of the touch panel switch 37 and the operator touches it, a current change occurs in the electrodes on the four sides, and the coordinate value touched by the circuit board connected to the electrodes is calculated. Accordingly, if the coordinate value matches a coordinate value in a coordinate value group stored in advance in the RAM 31 as a switch unit for performing a certain operation, the operation is performed.

  With the above configuration, the operator can automatically operate the component mounting device by pressing a start switch (not shown). First, the printed circuit board P is conveyed from the upstream device to the positioning unit 5 via the supply conveyor 4, and is positioned and fixed by a positioning mechanism (not shown).

  Next, the mounting head 7 moves one after another according to the mounting data in which the XY coordinate position of the printed circuit board to be mounted, the rotation angle position around the vertical axis, the arrangement number of each component supply unit 3 and the like stored in the RAM 31 are designated. Then, the electronic component to be mounted by the suction nozzle 13 corresponding to the component type of the electronic component is sucked out from the predetermined component supply unit 3.

  More specifically, the suction nozzle 13 of the mounting head 7 moves so as to be positioned above the component supply unit 3 that stores the electronic component to be mounted of step number 0001, but the Y-axis drive motor 9 is driven by the drive circuit 33 in the Y direction. When driven, the beam 8 moves along the pair of guides 11. In the X direction, the X-axis drive motor 15 is driven by the drive circuit 33 to move the mounting head 7, and the predetermined component supply unit 3 has already been driven. Since the component can be taken out at the component suction position, the vertical axis drive motor 16 is driven by the drive circuit 33 and the nozzle 13 is lowered to suck and take out the electronic component, and then the mounting head 7 is raised. The electronic components up to step number 0012 are moved above the component supply unit 3 for storing the electronic components to be mounted at step number 0002, and are taken down and removed. Take out.

  The suction nozzle 13 moves so as to mount the electronic component at a predetermined position on the printed circuit board P positioned by the positioning unit 5, and the mounting head 7 moves while the mounting head 7 is moving. When passing through the upper position of the recognition camera 18, the electronic components sucked and held by the twelve suction nozzles 13 are collectively imaged by the component recognition camera 18 (fly recognition). Then, as shown in FIG. 8, when a component recognition execution command is made by the CPU 30, the component recognition processing device 34 captures an image, and how much the electronic component D is displaced with respect to the suction nozzle 13. Whether it is held or not is recognized by the recognition processing device 34 for the XY direction and the rotation angle. Then, correction is made based on the recognition processing result of the electronic component and the above-described recognition processing result of the printed circuit board, and the CPU 30 controls the Y-axis drive motor 9, the X-axis drive motor 15, and the θ-axis drive motor 17 to print one after another. The substrate P is mounted at a predetermined position.

  Here, when each electronic component D is picked up and held by the suction nozzle 13 and picked up by the component recognition camera 18 and recognized by the recognition processing device 34, for example, lead bending of the electronic component D, so-called standing suction, etc. If the recognition failure (including posture failure and suction abnormality) is detected, the following processing is performed.

  That is, the recognition processing device 34 performs recognition processing, and it is determined by the CPU 30 whether or not the result matches the image storage condition. When the CPU 30 determines that the result matches (recognition abnormality), the component recognition camera. The image picked up by 18 is stored in the RAM 31. In this case, the CPU 30 determines from which mounting data (refer to FIG. 3), component layout data (refer to FIG. 4), and nozzle layout data (refer to FIG. 5) whether the suction nozzle 13 has an electronic component that is abnormally recognized. Therefore, it is stored in the RAM 31 as to which suction nozzle 13 of which mounting head 7 the electronic component of which recognition is abnormal.

  Similarly, when an electronic component mounting operation is performed and recognition is abnormal, an image captured by the component recognition camera 18 is stored in the RAM 31. Then, the operator analyzes the recognition abnormality of the electronic component, and presses the display switch portion of the touch panel switch 37 when monitoring (managing) the suction state of the specific suction nozzle 13 or the suction state of the specific electronic component. An operation of displaying the above-described image and specifically displaying which electronic component has a recognition abnormality on the displayed screen will be described.

  First, when the display switch portion of the touch panel switch 37 is pressed, the CPU 30 displays an image related to the recognition abnormality on the monitor 36 (the left part in FIG. 10) and specifies which electronic component has the recognition abnormality. That is, based on the image stored in the RAM 31, the CPU 30 knows the current rotation position angle of the mounting head 7 and the arrangement position of the suction nozzle 13. Therefore, as shown in the flowchart of FIG. The CPU 30 calculates the display target coordinate position from the position angle and the suction nozzle arrangement position, and then the CPU 30 displays the calculated display target coordinate position on the monitor 36 so that the calculated display target coordinate position can be known. That is, the screen is enlarged to be displayed with the display target coordinate position calculated by scrolling the center of the screen (see the right part of FIG. 10) or drawn so as to be surrounded by a circle A (see FIG. 11).

  As described above, since the image related to the recognition abnormality can be displayed and which electronic component is recognized abnormally on the displayed screen, the worker analyzes the recognition abnormality of the electronic component. be able to. In the setting screen shown in FIG. 6, when the image processing result is “OK” or “OK / NG (either OK or NG)”, and the suction nozzle number is specified. When the operator presses the display switch portion of the touch panel switch 37, an image (enlarged image or drawing specifying the position) relating to the designated suction nozzle is displayed regardless of whether the recognition is normal or abnormal. For this reason, it is optimal for monitoring (managing) the suction state of the specific suction nozzle 13 and the suction state of the specific electronic component, and can greatly improve the work efficiency.

  The display on the monitor 36 is related to the suction nozzle 13 set by the setting device or the set component supply unit, so that the display is limited to the case where the display is particularly necessary. You can also.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the above-described alternatives, modifications, or modifications. It includes modifications.

It is a top view of an electronic component mounting apparatus. It is a control block diagram of this electronic component mounting apparatus. It is a figure which shows mounting data. It is a figure which shows component arrangement | positioning data. It is a figure which shows adsorption nozzle arrangement | positioning data. It is a figure which shows the setting screen of an image preservation | save condition. It is a figure which shows the bottom face of a mounting head. It is a figure which shows a flowchart in an image preservation | save process. It is a figure which shows the display flowchart of a preserve | saved image. It is a figure which shows the specific electronic component which concerns on the image which concerns on recognition abnormality, and recognition abnormality. It is a figure which displays the specific electronic component which concerns on recognition abnormality.

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 5 Component supply part 6 Component supply unit 19 Unit base 23 Suppressor 64 Tape path 65 Loading opening 66 Prevention member

Claims (4)

  Each electronic component supplied to a component suction position from a predetermined component supply unit is picked up by a plurality of suction nozzles provided in the mounting head, and a plurality of electronic components sucked and held by these suction nozzles are component recognition cameras. In the electronic component mounting apparatus that collects images and performs recognition processing by the recognition processing apparatus, a determination apparatus that determines whether the recognition processing result of the recognition processing apparatus is a recognition abnormality, and any of the electronic devices in the determination apparatus A storage device that stores images of a plurality of electronic components that are collectively imaged by the component recognition camera when the component is determined to be abnormally recognized, and a display target coordinate position of the electronic component that is determined to be abnormally recognized A calculation device that calculates the image based on the image stored in the storage device, and a display device that displays an enlarged image of the electronic component at the display target coordinate position calculated by the calculation device; An electronic component mounting apparatus characterized by comprising.   Each electronic component supplied to a component suction position from a predetermined component supply unit is picked up by a plurality of suction nozzles provided in the mounting head, and a plurality of electronic components sucked and held by these suction nozzles are component recognition cameras. In the electronic component mounting apparatus that collects images and performs recognition processing by the recognition processing apparatus, a determination apparatus that determines whether the recognition processing result of the recognition processing apparatus is a recognition abnormality, and any of the electronic devices in the determination apparatus When it is determined that the component is abnormal in recognition, the storage device that stores the captured image and the display target coordinate position of the electronic component that is determined as abnormal in recognition are based on the image stored in the storage device. A calculation device for calculation and images of a plurality of electronic components captured by the component recognition camera at a time are displayed, and the electric current at the display target coordinate position calculated by the calculation device is displayed. An electronic component mounting apparatus characterized in that a display device and which displays to surround the image of the part.   The electronic component mounting apparatus according to claim 1, wherein the display device displays an image of the electronic component relating to the suction nozzle set by the setting device.   The electronic component mounting apparatus according to claim 1, wherein the display device displays an image of an electronic component related to the component supply unit set by the setting device.

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