JP2013207285A - Electronic component loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component loading device capable of predicting change in state of the loading device by grasping fluctuation in production time of a substrate.SOLUTION: Whenever loading of an electronic component having a final step number of loading data on a printed substrate completes and loading head 6A or 6B rises as it is to reach a standby position, a counter 26 increments production number by one, and a control device 15 updates production number, and then causes a storage device 17 to store the production number and further causes a monitor 19 to display it. Then, the control device 15 updates latest production time, and causes the storage device 17 to store the latest production time, and causes the monitor 19 to display it. The control device 15 compares the latest production time with a fastest time for production time per a single substrate that has been manufactured so far, and if it is determined that the latest production time is shorter than a fastest production time per a single substrate that has been manufactured so far, the control device updates the fastest production time, and causes the storage device 17 to store the fastest production time and causes the monitor 19 to display it.

Description

  The present invention relates to an electronic component mounting apparatus that takes out an electronic component from a component supply device by a plurality of component holders provided in a mounting head and mounts the electronic component sucked and held by the component holder on a substrate.

  An electronic component mounting apparatus that sucks and removes an electronic component from a component supply device by a suction nozzle attached to a mounting head and mounts the electronic component on a substrate is disclosed in Patent Document 1 and the like. The general electronic component mounting apparatus displays the fastest production time per board on the display device, or displays the elapsed production time that is constantly lapsed for the board currently being produced.

JP 2010-87305 A

  However, by displaying the elapsed production time for the board currently being produced, the practitioner can grasp the past fastest production time and the current production elapsed time, but when the production of the board being produced is finished I can't figure out the time. For this reason, there is a problem that the fluctuation of the production time is not known and it is not possible to judge whether the production time is shortening or whether there is a problem in production and the production time is increasing.

  Accordingly, an object of the present invention is to provide an electronic component mounting apparatus capable of grasping fluctuations in the production time of a substrate and predicting a change in the state of the electronic component mounting apparatus.

  For this reason, according to the first aspect of the present invention, there is provided an electronic component mounting apparatus for taking out an electronic component from a component supply device by a plurality of component holders provided in a mounting head and mounting the electronic component sucked and held by the component holder on a substrate. A timer for measuring the production time required for the production of the printed circuit board currently produced, and a display device for displaying the production time required for the most recent production of the printed circuit board measured by the timer. Features.

  According to a second aspect of the present invention, there is provided an electronic component mounting apparatus in which an electronic component is taken out from a component supply device by a plurality of component holders provided in a mounting head, and the electronic component sucked and held by the component holder is mounted on a substrate. A timer that counts the production time required to produce the printed circuit board that is currently produced, a storage device that stores the fastest production time of the printed circuit board produced in the past, and the latest printed circuit board timed by the timer A determination device for determining which is the fastest based on the production time taken for production and the fastest past production time stored in the storage device, and the production time taken for the most recent production of the printed circuit board by this determination device When it is determined that the time is short, the fastest production time of the printed circuit board produced in the past stored in the storage device is updated and stored in the storage device. An update device and a display device for displaying the latest production time of the printed circuit board updated by the update device and the production time of the latest printed circuit board timed by the timer are provided. To do.

  According to a third invention, in the second invention, another storage device for storing production times of a plurality of printed circuit boards produced in the past, and a plurality of recent storage devices that have finished production stored in the other storage device And a control device for controlling the display device to display the difference between the production time of one printed circuit board and the latest production time of the plurality of printed circuit boards and the fastest production time. To do.

  The present invention can provide an electronic component mounting apparatus that can grasp a change in the production time of a substrate and predict a change in the state of the electronic component mounting apparatus.

It is a top view of an electronic component mounting apparatus. It is a control block diagram of an electronic component mounting apparatus. It is a figure which shows mounting data. It is a figure which shows the screen displayed on the monitor. It is a figure which shows the flowchart of 1st Embodiment which concerns on the update of production time. It is a figure which shows the flowchart of 2nd Embodiment which concerns on the update of production time. It is a figure which shows the screen displayed on the monitor.

  Hereinafter, based on FIG. 1 which is a plan view of the electronic component mounting apparatus 1, an embodiment of the present invention will be described for the electronic component mounting apparatus 1 for mounting an electronic component on a printed circuit board P as a substrate. The electronic component mounting apparatus 1 includes a transport device 2 that transports the printed circuit board P, component supply devices 3A and 3B that are disposed on the front side and the back side of the device body, and supply electronic components. A pair of beams 4A, 4B that can move in the direction (reciprocating in the Y direction) and a suction nozzle 5 as a component holder, respectively, can be moved by each drive source in the direction along the beams 4A, 4B. Mounting heads 6A and 6B are provided.

  The conveying device 2 includes a supply conveyor 2A that inherits the printed circuit board P from the upstream device, a positioning unit 2B that positions and fixes the printed circuit board P, and a discharge conveyor 2C. Then, the supply conveyor 2A conveys the printed circuit board P received from the upstream to the positioning unit 2B, and after the electronic components are mounted on the printed circuit board P positioned by the positioning device in each positioning unit 2B, the discharge conveyor 2C It is the structure conveyed to the downstream apparatus after that.

  The component supply devices 3A and 3B are disposed at the back side and the front side of the transport device 2, and a large number of component supply units 8 are arranged in parallel on the feeder bases of the cart bases 7A and 7B as mounting bases. Is. Each cart base 7A, 7B is detachably disposed on the apparatus main body via a connector so that the tip on the component supply side of the component supply unit 8 faces the conveyance path of the printed circuit board P, and each cart base 7A, When 7B is properly attached to the apparatus main body, power is supplied to the component supply unit 8 mounted on the cart bases 7A and 7B, and when the handle is released and the handle is pulled, it can be moved by a caster provided on the lower surface. It is a configuration.

  The pair of front and rear beams 4A and 4B, which are long in the X direction, include sliders fixed to the beams along a pair of left and right front and rear guides driven by a Y direction motor 9 composed of linear motors. Slide and move individually in the Y direction. The Y-direction motor 9 includes a pair of upper and lower stators fixed along a pair of left and right bases 1A and 1B, and a mover 9A fixed to lower portions of mounting plates provided at both ends of the beams 4A and 4B. It consists of.

  The beams 4A and 4B are provided with mounting heads 6A and 6B that move along guides by an X-direction motor 10 constituted by a linear motor in the longitudinal direction (X direction), respectively. The X-direction motor 10 includes a pair of front and rear stators fixed to the beams 4A and 4B, and a mover provided between the stators and provided on the mounting heads 6A and 6B.

  Accordingly, the mounting heads 6A and 6B are provided inside the beams 4A and 4B so as to face each other, and the mounting head 6A performs an operation of taking out an electronic component from the corresponding component supply unit 8 of the component supply device 3A on the back side. The mounting head 6B can take out an electronic component from the corresponding component supply device 3B on the near side and mount it on the printed circuit board P.

  In each of the mounting heads 6A and 6B, for example, four suction nozzles 5 biased downward by the respective springs are arranged on the circumference at a predetermined interval, and the mounting head 6A is selected. Alternatively, the suction nozzle 5 lowered from 6B can be moved up and down by moving the mounting head 6A or 6B by the vertical axis motor 12, and by rotating the mounting heads 6A and 6B around the vertical axis by the θ-axis motor 13, As a result, each suction nozzle 5 of each mounting head 6A, 6B can move in the X direction and the Y direction, can rotate about a vertical line, and can move up and down.

  Each component recognition camera 14 collectively images the electronic components sucked and held by the suction nozzles 5 provided in the mounting heads 6A and 6B.

  FIG. 2 is a control block for control related to electronic component mounting of the electronic component mounting apparatus 1 and will be described below. Each element of the electronic component mounting apparatus 1 is comprehensively controlled by the control device 15, and a storage device 17 for storing various data is connected to the control device 15 via a bus line 18. Further, a monitor 19 as a display device for displaying an operation screen and the like and a touch panel switch 20 as an input means formed on the display screen of the monitor 19 are connected to the control device 15 via an interface 21. The Y-direction motor 9 and the like are connected to the control device 15 via a drive circuit 22 and an interface 21. The control device 15 functions as a control device, a determination device, a comparison device, a calculation device, an update device, and the like.

  The storage device 17 stores mounting data (see FIG. 3) for each type of printed circuit board P. The mounting data includes, for each mounting order (mounting step number), position information in the X direction (mounting coordinates X) and position information in the Y direction (mounting coordinates Y) on each printed circuit board P. , Mounting angle information (mounting angle θ), component arrangement number information of each component supply unit 8, and the like.

  The storage device 17 stores component arrangement data of each electronic component type (component ID) corresponding to the component arrangement number of each of the component supply units 8 arranged on the cart bases 7A and 7B. Yes.

  Further, the storage device 17 stores component library data for each electronic component including shape data, recognition data, control data, and component supply data representing the characteristics of the electronic component.

  A recognition processing device 23 is connected to the control device 15 via the interface 21. The recognition processing device 23 performs recognition processing of an image captured by the component recognition camera 14. The processing result is sent to 15. That is, the control device 15 outputs an instruction to the recognition processing device 23 so as to perform recognition processing (such as calculation of a positional deviation amount) on the image captured by the component recognition camera 14 and receives the recognition processing result from the recognition processing device 23. Is.

  A timer 25 and a counter 26 are connected to the control device 15 via the interface 21. When the work manager presses the operation start switch, which is the touch panel switch 20 displayed on the monitor 19, the mounting operation of the electronic component on the printed circuit board P is started, but the first printed circuit board that has started the production operation is started. With respect to P, after the mounting head 6A or 6B starts moving from the origin position, the mounting of the electronic component of the final step number of the mounting data on the printed circuit board P is completed, and then rises to reach the standby position. The time until the point of time is counted by the timer 25 as the production time of the first printed circuit board P. For the second and subsequent sheets, printing of the electronic component of the last step number from the time when the mounting head 6A or 6B in the standby position starts moving to mount the electronic component of the first step number of the mounting data. The time from the end of mounting on the substrate P to the point of ascending and reaching the standby position is defined as production time. Note that the time measured in this way is not limited to the production time. For example, the time measurement is started after the discharge request signal for the printed circuit board P on the supply conveyor 2A is transmitted to the supply conveyor 2A, and the final step number When the mounting of the electronic component on the printed circuit board P is completed, the mounting head 6A or 6B is lifted as it is, reaches the standby position, and again transmits a discharge request signal for the printed circuit board P to the supply conveyor 2A. The time up to may be the production time.

  The counter 26 counts the number of produced printed circuit boards P. When the mounting of the electronic component having the final step number of the mounting data on the printed circuit board P is completed, the mounting head 6A or 6B remains as it is. Every time it rises and reaches the standby position, it is incremented by “1”.

  With the above configuration, the mounting operation of the electronic component on the printed board P will be described. First, the work manager presses the board type switch of the touch panel switch 20 on the board type of the printed board P displayed on the monitor 19, selects the board type of the printed board P to be produced, and the touch panel switch 20 similarly. When the operation start switch is pressed, the electronic component mounting operation of the electronic component mounting apparatus is started.

  When the printed circuit board P is inherited from the previous process apparatus and is present on the supply conveyor 2A, the printed circuit board P is conveyed to the positioning unit 2B and positioned by the positioning apparatus.

  And the operation | movement which mounts an electronic component on the printed circuit board P positioned in this way is started. That is, the controller 15 mounts the mounting heads 6A and 6B for picking up and mounting electronic components from the mounting data by one reciprocation between the component supply devices 3A and 3B and the printed circuit board P because of the chain suction. The step number is cut out, and the electronic component can be chain-adsorbed with respect to the maximum number “4” of the suction nozzles 5 provided in the mounting heads 6A and 6B. For example, all the four suction nozzles of the mounting heads 6A and 6B 5 is performed.

  Next, the electronic component is moved to the component extraction position of the component supply unit 8 in order to suck and extract the electronic component. That is, the mounting head 6A on the back side moves in the Y direction by the Y direction motor 9 and moves the beam 4A, and in the X direction moves by the X direction motor 10 and moves in the XY direction. Move to the removal position. Then, the control device 15 controls the vertical axis drive motor 12 to lower the suction nozzle 5 and suck and take out the electronic components of the component supply unit 8. Similarly, the four suction nozzles 5 of the mounting head 6A take out an electronic component from the component supply device 3A. At this time, the suction nozzle 5 of the mounting head 6B similarly takes out the electronic component from the component supply device 3B.

  Thereafter, the vertical axis drive motor 12 of the mounting heads 6A and 6B is controlled to start the suction nozzle 5 ascending, and the electronic component is placed at a predetermined position on the printed circuit board P where the suction nozzle 5 of the mounting head 6A is positioned. The electronic component picked up and held by the suction nozzle 5 while the mounting head 6A or 6B is moving is imaged by the component recognition camera 14 (fly recognition), and the component recognition processing operation is performed. Is done.

  Next, the control device 15 moves the mounting head 6A or 6B to the mounting position of the electronic component based on the mounting data, and lowers and raises each suction nozzle 5 to sequentially print the sucked and held electronic components. Mount on the substrate P.

  Subsequently, the mounting step number in the mounting data for taking out and mounting the next electronic component is sequentially extracted, and the mounting head 6A or 6B removes the electronic component from the component supply device 3A or 3B according to the extracted mounting data. The operation of taking out and mounting on the printed circuit board P is repeated. When all the electronic components have been mounted on the printed circuit board P, the mounting head 6A or 6B returns to the standby position, passes from the positioning unit 2B to the discharge conveyor 2C, and then discharges to the downstream apparatus.

  The production elapsed time of the first printed circuit board P that has started the production operation is timed by the timer 25 and displayed on the monitor 19 from the time when the mounting head 6A or 6B starts moving from the origin position (FIG. 3). reference).

  Then, from the point when the mounting head 6A or 6B starts moving from the origin position, mounting of the electronic component having the final step number of the mounting data on the printed circuit board P is finished, and the mounting heads 6A and 6B are lifted as they are. The time until reaching the standby position is set as the production time of the first printed circuit board P by the timer 25.

  The elapsed production time of the second and subsequent printed circuit boards P is measured by the timer 25 and displayed on the monitor 19 from the time when the mounting head 6A or 6B starts moving from the standby position (see FIG. 4). In this case, the production time rises as it is and reaches the standby position after the mounting of the electronic component of the last step number on the printed circuit board P is completed from the time when the mounting head 6A or 6B starts moving from the standby position. Time to the point. The latest production time of the printed circuit board P (which has just finished production) is also displayed on the monitor 19.

  Then, as shown in FIG. 5, when the mounting of the electronic component of the final step number of the mounting data on the printed circuit board P is completed and the mounting head 6A or 6B is lifted as it is and reaches the standby position, the counter 26 increments the production number by “1”, so that the control device 15 updates the production number, controls to store the production number in the storage device 17, and displays it on the monitor 19 (step S01). ).

  Next, the control device 15 updates the latest production time, and controls to store the latest production time in the storage device 17 and displays it on the monitor 19 (step S02). Then, the control device 15 compares the latest production time with the fastest production time (fastest production time) per printed circuit board P produced so far, and the latest production time has been produced so far. It is determined whether it is shorter than the fastest production time per substrate P (step S03). In this case, since it is the printed board P produced first, the control device 15 determines that it is short, updates the fastest production time, and stores this fastest (most recent) production time in the storage device 17. And control to display on the monitor 19 (step S04).

  For the second and subsequent sheets, the latest production time is compared with the latest production time so far by comparing the latest production time with the fastest production time (the fastest production time) per printed circuit board P. When it is shorter than the fastest production time per printed circuit board P produced, the control device 15 updates the fastest production time, controls the storage device 17 to store the fastest production time, and displays it on the monitor 19. Control is performed as described above (step S04).

  Similarly, the second and subsequent sheets are displayed on the monitor 19 in accordance with the flowchart shown in FIG. 5, such as the production time of the printed circuit board P, the latest production time, the number of printed circuit boards P produced, and the fastest production time. Then (see FIG. 4), the operator can confirm the latest production time and the fastest production time at the same time to grasp the change in the production time.

  Although the reset switch unit 20A which is the touch panel switch 20 is shown in FIG. 4, when the reset switch unit 20A is pressed by the work manager, the latest production time of the printed circuit board P, the printed circuit board P The number of produced sheets, the fastest production time, etc. are reset, and for example, “0” is displayed. If necessary, the data stored in the storage device 17 is also erased. The timing of this reset is determined by the convenience of the work manager, but is generally considered when the model of the printed circuit board P is switched. Further, the model name of the printed circuit board P may be displayed on the monitor 19.

  Next, another embodiment will be described with reference to FIGS. When the mounting of the electronic component of the last step number of the mounting data on the printed circuit board P is completed and the mounting head 6A or 6B is lifted as it is and reaches the standby position, the counter 26 increments the production number by “1”. Since it is incremented, the control device 15 updates the production number, controls to store the production number in the storage device 17, and controls to display it on the monitor 19 (step S11).

  Next, the control device 15 controls to store the production time (history) for the latest five sheets in the storage device 17 and to display it on the monitor 19 (step S12). That is, the production time of the latest five printed circuit boards P including the latest is displayed.

  Then, the control device 15 compares the latest production time just finished production with the fastest production time (fastest production time) per printed circuit board P produced so far, and determines the latest production time. It is determined whether or not it is shorter than the fastest production time per printed circuit board P produced up to (step S13). In this case, since it is the printed board P produced first, the control device 15 determines that it is short, updates the fastest production time, and stores this fastest (most recent) production time in the storage device 17. And control to display on the monitor 19 (step S14).

  For the second and subsequent sheets, the latest production time is compared with the latest production time so far by comparing the latest production time with the fastest production time (the fastest production time) per printed circuit board P. When it is shorter than the fastest production time per printed circuit board P produced, the control device 15 updates the fastest production time, controls the storage device 17 to store the fastest production time, and displays it on the monitor 19. Control is performed as follows (step S14).

  Next, the control device 15 calculates and updates the difference in production time, that is, the difference between the production time of the latest printed circuit board P just finished production and the fastest production time, and stores this difference in the storage device 17. And control to display on the monitor 19 (step S15). In this case, “+” means longer than the fastest time.

  In the same manner for the second and subsequent sheets, according to the flowchart as shown in FIG. 6, the monitor 19 produces the latest five sheets including the printed board P production time, the fastest production time, the number of printed board P produced, and the latest. The production time (production time for each printed board P production order, difference from the fastest production time) will be displayed (see FIG. 7), and the operator will find the fastest production time and the latest five production times. Comparisons can be made and the difference from the fastest production time can be confirmed.

  Although the reset switch unit 20B which is the touch panel switch 20 is shown in FIG. 7, when the reset switch unit 20B is pressed by the work manager, the production time of the printed board P, the fastest production time, The production number of the board P, the production time for the last five sheets including the latest (the production time for each production order of the printed board P, the difference from the fastest production time), etc. are reset, for example, “0” is displayed. If necessary, the data stored in the storage device 17 is also erased. The timing of this reset is determined by the convenience of the work manager, but is generally considered when the model of the printed circuit board P is switched. Further, the model name of the printed circuit board P may be displayed on the monitor 19.

  As described above, according to the first and second embodiments, it is possible to provide an electronic component mounting apparatus that can grasp a change in the production time of a substrate and predict a change in the state of the electronic component mounting apparatus.

  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.

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 3A, 3B Component supply apparatus 6A, 6B Mounting head 15 Control apparatus 17 Memory | storage device 19 Monitor 20 Touch panel switch 25 Timer 26 Counter P Printed circuit board

Claims (3)

  An electronic component mounting apparatus that takes out an electronic component from a component supply device by a plurality of component holders provided in a mounting head and mounts the electronic component sucked and held by the component holder on a substrate is currently produced. An electronic component mounting apparatus comprising: a timer that counts a production time required for the production of a printed circuit board; and a display device that displays a production time for the most recent production of the printed circuit board measured by the timer.   An electronic component mounting apparatus that takes out an electronic component from a component supply device by a plurality of component holders provided in a mounting head and mounts the electronic component sucked and held by the component holder on a substrate is currently produced. A timer for measuring the production time required for the production of the printed circuit board, a storage device for storing the fastest production time of the printed circuit board produced in the past, and the production time for the production of the latest printed circuit board timed by the timer And a determination device that determines which is the fastest based on the past and the fastest production time stored in the storage device, and the determination device determines that the production time required for the most recent production of the printed circuit board is short An update device that updates the fastest production time of the printed circuit board produced in the past stored in the storage device and stores it in the storage device; And a display device for displaying the latest production time of the printed circuit board updated by the update device and the production time of the latest printed circuit board measured by the timer. apparatus.   Other storage devices for storing the production times of the plurality of printed circuit boards produced in the past, the recent production times of the plurality of printed circuit boards that have finished production stored in the other storage devices, and their recent 3. The electronic component mounting apparatus according to claim 2, further comprising: a control device configured to control a difference between a production time of a plurality of printed circuit boards and the fastest production time on the display device.

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