JP4846628B2 - Electronic component mounting method - Google Patents

Description

  The present invention relates to an electronic component mounting method in which electronic components are taken out from a plurality of component supply units that supply electronic components stored in a storage tape wound and stored on a supply reel and mounted on a printed circuit board.

  This type of electronic component mounting method is disclosed in, for example, Patent Document 1, but when an out-of-part notice or out-of-part information is sequentially displayed on a monitor installed in the material storage area, the worker must There is also disclosed a technique in which a new tape supply reel for the parts is prepared and an operator loads the tape supply reel into a part supply unit that is out of parts.

During this loading, the feeder information (serial number) consisting of a barcode attached to the component supply unit to be replenished and having a plurality of patterns is read to manually extract the data and determine the contents. Selects and switches the barcode pattern related to the arrangement of component ID, storage quantity, etc., and stores component information consisting of the barcode attached to the supply reel on which the storage tape is wound and stored (electronic component ID and storage) Information related to the quantity, etc.) is read out, and the component information is extracted along the pattern, and the feeder information (serial number) and the component information are associated with each other and registered in the server.
Japanese Unexamined Patent Publication No. 7-94896

  However, since the operator looked at the storage tape wound and stored on the supply reel and manually selected and switched the pattern related to the arrangement of the electronic component ID, the storage quantity, etc., it was very troublesome and the operator Depending on the proficiency level, different patterns may be selected.

  Accordingly, the present invention automatically switches the barcode pattern related to the component information based on the feeder information, and feeds the component information unique to the component supply unit attached to the component supply unit and the component attached to the supply reel. It is an object of the present invention to provide an electronic component mounting apparatus that can be reliably associated with information (information related to an electronic component ID, stored quantity, and the like).

For this reason, the first invention is an electronic component mounting method in which electronic components are taken out from a plurality of component supply units that supply electronic components stored in a storage tape wound and stored in a supply reel and mounted on a printed circuit board.
Feeder information, which is information unique to this component supply unit attached to the component supply unit that supplies electronic components from a new storage tape, is read by a scanner, and input to a computer.
This computer acquires pattern information determined by the component serial number corresponding to the feeder information read by the scanner this time from the server, compares this pattern information with the current pattern information stored in the computer,
If they are different, the computer stores the latest pattern information in its internal memory,
Read the component information consisting of the component ID and electronic component storage number attached to the tape supply reel on which the new storage tape is wound and stored, and input it to the computer.
This computer adjusts the read component information to the data array corresponding to the latest pattern information, cuts out, determines the content,
The computer stores feeder information and component information in association with each other in the server.

According to a second invention, in the first invention, after the computer associates feeder information and component information and stores them in the server, the latest pattern information is stored in the server.

  The present invention automatically switches the barcode pattern related to the component information based on the feeder information, the feeder information that is unique to the component supply unit attached to the component supply unit, and the component information attached to the supply reel. It is possible to provide an electronic component mounting apparatus that can be reliably associated with (information regarding electronic component IDs, storage quantities, and the like).

  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.

  The component supply unit 3 intermittently feeds a storage tape wound and stored on a tape supply reel (not shown) one pitch at a time, peels off the cover tape, and sends an electronic component to a component extraction position. It is used for removal.

  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 mounting head 7 that moves along the guide by an X-axis drive motor 15 in the longitudinal direction, that is, in the X direction. The mounting head 7 is provided with a plurality of, for example, three suction nozzles 13. It is done. 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 in order to recognize the position of the electronic component with respect to the suction nozzle 13 in terms of the XY direction and the rotation angle. Each electronic component is picked up and picked up by the component recognition camera 18 in a state of being sucked and held by the suction nozzle 13 and recognized by a recognition processing device 23 described later.

  Next, the control block diagram of FIG. 2 will be described. The electronic component mounting apparatus 1 includes a CPU (Central Processing Unit) 20 as a control apparatus that performs overall control of the mounting apparatus 1, and a bus line connected to the CPU 20. RAM (Random Access Memory) 21 and ROM (Read Only Memory) 22 are provided. The CPU 20 controls the operation related to the component mounting operation of the electronic component mounting apparatus 1 according to the program stored in the ROM 22 based on the data stored in the RAM 21. That is, the CPU 20 controls the drive of the Y-axis drive motor 9, the X-axis drive motor 15, the vertical axis drive motor 16, the θ-axis drive motor 17 and the like via the drive circuit 27.

  The RAM 21 stores mounting data for each type of printed circuit board P related to component mounting. For each mounting order (step number), the X direction (indicated by X) in the printed circuit board P, Y Information on direction (indicated by Y) and angle (indicated by Z), arrangement number information of each component supply unit 3, and the like are stored. In addition, the RAM 21 stores information on the type (component ID) of each electronic component corresponding to the component supply unit arrangement number (lane number) of each component supply unit 3 for each type of printed circuit board P, that is, component arrangement information. Further, component library data relating to the characteristics of the electronic component is stored for each component ID.

  A recognition processing device 23 is connected to the CPU 20 via the interface 24. The recognition processing device 23 recognizes an image captured by the component recognition camera 18, and the CPU 20 receives the processing result. Is sent out. That is, the CPU 20 outputs an instruction to the recognition processing device 23 so as to perform recognition processing (calculation of the amount of displacement) of the image captured by the component recognition camera 18 and receives the recognition processing result from the recognition processing device 23. It is.

  Reference numeral 25 denotes a monitor for displaying a part image and a screen for setting various data. The monitor 25 is provided with various touch panel switches 26 as input means. Can be set.

  Reference numeral 30 denotes a bar code scanner as a reading device, which is based on a bar code written on a label attached to a handle used when the component supply unit 3 is attached to or removed from a predetermined position, for example, the base 2. From the configured feeder information (serial number, a unique number of each component supply unit 3) and the barcode written on the label attached to the tape supply reel (not shown) around which the storage tape is wound and stored The component information (component ID which is the name of an electronic component and the quantity of electronic components stored) is read.

  A personal computer 31 includes a microcomputer connected to the electronic component mounting apparatus 1 via the LAN line 32. The personal computer is also connected to the server 33 via the LAN line 32. A monitor 34 as a display device and an input means 35 such as a keyboard are connected to the personal computer 31.

  The personal computer 31 stores, in its own memory, a pattern number which is one of the latest pattern information described later registered by performing an association registration operation of feeder information and component information. The server 33 also includes a correspondence data table (see FIG. 3) between the feeder information and the component serial number (a unique number of the electronic component), and a correspondence data table between the component serial number and the pattern number (see FIG. 4). ) Is stored.

  Note that the arrangement (pattern) of component information (component ID and electronic component storage quantity) represented by a bar code varies depending on the manufacturer of the storage tape. That is, as shown in FIG. 5, the component information of manufacturer A has a component ID arranged in the first row and the storage quantity arranged in the second row, and the component information of manufacturer B is shown in FIG. The storage quantity is arranged next to the part ID, and as shown in FIG. 7, the part information of the C manufacturer is arranged with the first identifier and the part ID on the first line and the first identifier and the storage quantity on the second line. Although there are other arrangements, only three types will be described for convenience. Such an array arranged as shown in FIG. 5 has a pattern number “01”, an array arranged as shown in FIG. 6 has a pattern number “02”, and an array arranged as shown in FIG. The following description will be given assuming that the pattern number is “03”.

  The production operation will be described below on the assumption that the latest (previous) pattern number “01” for which an association registration operation for feeder information and component information was previously performed is stored in the personal computer 33.

  First, the operator can automatically operate the electronic component mounting apparatus 1 by pressing a start switch (not shown). First, the printed circuit board P is moved from the upstream apparatus to the positioning unit 5 via the supply conveyor 4. It is conveyed and positioned and fixed by a positioning mechanism (not shown).

  Next, the mounting heads 7 sequentially follow the mounting data in which the XY coordinate position to be mounted on the printed circuit board P stored in the RAM 21, the rotational angle position around the vertical axis, the arrangement number of each component supply unit 3, etc. are designated. The electronic component to be mounted by the suction nozzle 13 corresponding to the component type of the electronic component is picked up and taken 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 27 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 27 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 27 and the suction nozzle 13 is lowered to pick up and take out the electronic component, and then the mounting head 7 is raised. The number of the suction nozzles 13 is, for example, moved upward above the component supply unit 3 that stores the electronic component to be mounted of step number 0002, and taken down. Taking out a number of electronic components.

  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. The electronic components sucked and held by the three suction nozzles 13 when passing the upper position of the recognition camera 15 are collectively imaged by the component recognition camera 15 (fly recognition). Then, when a component recognition execution command is issued by the CPU 20, the component recognition processing device 23 captures an image, and how much the electronic component is displaced and held with respect to the suction nozzle 13 in the XY direction and rotation. The recognition processing device 34 recognizes the angle. Then, the correction is made based on the recognition processing result of the electronic component, and the Y-axis drive motor 9, the X-axis drive motor 15 and the θ-axis drive motor 17 are controlled by the CPU 20, and are successively mounted at predetermined positions on the printed circuit board P. It will be.

  In this way, electronic components are mounted one after another on the printed circuit board P, and when all the electronic components are mounted on the printed circuit board P, they are delivered to the downstream device via the discharge conveyor 6. Then, when the same mounting is sequentially performed on the printed circuit board P, the number of electronic components in the tape supply reel of each supply unit 3 gradually decreases.

  Here, for example, a counter (not shown) subtracts “1” for each mounting of each electronic component from the number of electronic components stored in the storage tape mounted for each component supply unit 3, and this count contents When the set remaining number of each electronic component is reached when the out-of-stock notice is made, or the counter (not shown) of the electronic component in the storage tape mounted for each component supply unit 3 for each printed circuit board production When the set number of boards that can be produced is reached when subtracting “1” from the total number of pieces that can be produced from the number of stored pieces to make a notice that parts will run out, and a timer (not shown) will run the production operation time. When the time is counted, and the cumulative time of the timer is subtracted from the total production operation time of how many hours the production operation can be performed from the number of electronic components stored in the storage tape mounted for each component supply unit 3, and the parts run out notice After When the set production possible time is reached, the CPU 20 of the electronic component mounting apparatus 1 sends the electronic component out-of-component notice information of the electronic component supply unit 3 to the personal computer 31 via the LAN line 32. Send.

  That is, for example, the remaining amount of electronic components stored in the storage tape whose feeder information (serial number of the component supply unit) is “FDR-2” decreases, and the set remaining number, the number of set production possible boards, the set production If the set remaining number is reached quickly within the possible time, the CPU 20 of the electronic component mounting apparatus 1 transmits the component shortage notice information to the personal computer 31 via the LAN line 32 and causes the monitor 25 to display it.

  Then, the personal computer 31 that has received the part-out notice information displays the part-out notice information of the part supply unit 3 related to the serial number “FDR-2” on the monitor 34. Accordingly, the administrator (operator) of these electronic component mounting apparatuses 1 can expect that the electronic components will eventually disappear by looking at the monitor 25 or 34. A tape supply reel related to an electronic component with a component serial number “002” to be mounted on the component supply unit 3 related to the serial number “FDR-2” is prepared from the material storage, and is actually mounted on the component supply unit 3. The old tape is replaced with the new tape and splicing is performed.

  The operation in this case will be described with reference to FIG. First, the operator uses the barcode scanner 30 to feed the feeder information (serial number “FDR-2”, each component supply unit 3 having a barcode written on the label attached to the handle of the component supply unit 3. ) And is input to the server 33 via the personal computer 31.

  The component serial number corresponding to the feeder information (serial number FDR-2) read by the barcode scanner 30 this time is “002” (see FIG. 3), and the pattern number corresponding to this component serial number “002” ( Hereinafter, the personal computer 33 compares “02” (obtained from the latest pattern number) (obtained from the server 33) with the current pattern number stored in the personal computer 33, for example, “01”. As a result of this comparison, both are different, and the personal computer 31 stores the latest pattern number “02” in its own internal memory. If both are the same, the latest pattern number is not rewritten.

  Next, the operator receives part information (part ID and quantity of electronic parts) composed of the bar code described on the label attached to the tape supply reel on which the new storage tape is wound and stored by the bar code scanner 30. Read and input to the personal computer 31.

  Then, the personal computer 31 cuts out the read component information in accordance with the arrangement indicated by the pattern number “02” and determines the data contents. That is, as shown in FIG. 6, the part information of the manufacturer B is a storage quantity arranged next to the part ID, and the part ID and the storage quantity are known from the information of such an arrangement.

  The personal computer 31 registers the association between the feeder information and the component information, that is, the serial number “FDR-2” and the component serial number “002” (component ID) of the component supply unit 3 and the storage quantity of the electronic component in the server 33. The pattern number “02” selected this time is registered in the server 33 and stored.

  The personal computer function may be provided to the CPU 20 which is the control device of the electronic component mounting apparatus 1, and the barcode scanner 30 may be connected to the CPU 20.

  In addition, as described above, in order for the patterns to be switched without fail, it is assumed that the same component supply unit 3 is always equipped with barcode electronic components that can be cut out in the same pattern number arrangement.

  As described above, when the component runs out, the administrator can supply the feeder information (serial number) attached to the component supply unit on which the new supply reel is mounted and the component information (electronic component information) attached to the supply reel. Information relating to IDs, stored quantities, etc.) can be reliably associated. For this reason, the remaining storage number can be managed based on the storage amount stored in the new supply reel.

  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 various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

The top view of an electronic component mounting apparatus is shown. It is a control block diagram of an electronic component mounting apparatus. It is a figure which shows the corresponding | compatible data table of feeder information and a component serial number. It is a figure which shows the corresponding | compatible data table of a component serial number and a pattern number. It is a figure which shows the data arrangement | sequence of pattern number "01". It is a figure which shows the data arrangement | sequence of pattern number "02". It is a figure which shows the data arrangement | sequence of pattern number "03". It is a figure which shows an operation | movement flowchart.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 3 Component supply unit 20 CPU
21 RAM
30 Barcode scanner 31 Personal computer 33 Server

Claims (2)

In an electronic component mounting method in which electronic components are taken out from a plurality of component supply units that supply electronic components stored in a storage tape wound and stored in a supply reel and mounted on a printed circuit board.
Feeder information, which is information unique to this component supply unit attached to the component supply unit that supplies electronic components from a new storage tape, is read by a scanner, and input to a computer.
This computer acquires pattern information determined by the component serial number corresponding to the feeder information read by the scanner this time from the server, compares this pattern information with the current pattern information stored in the computer,
If they are different, the computer stores the latest pattern information in its internal memory,
Read the component information consisting of the component ID and electronic component storage number attached to the tape supply reel on which the new storage tape is wound and stored, and input it to the computer.
This computer adjusts the read component information to the data array corresponding to the latest pattern information, cuts out, determines the content,
The computer stores the feeder information and the component information in association with each other in the server. 2. The electronic component mounting method according to claim 1, wherein the computer stores the latest pattern information in the server after associating the feeder information with the component information and storing the information in the server.

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