JP6110172B2 - Electronic component mounting device - Google Patents

Description

  The present invention relates to an electronic component mounting apparatus for mounting an electronic component on a substrate.

  This type of electronic component mounting apparatus is disclosed in, for example, Patent Document 1.

  In this type of electronic component mounting apparatus, the beam that moves in the Y direction is provided with a mounting head that moves along the beam, and the electronic component supply device is provided with a plurality of extraction holders provided on the mounting head. Then, the electronic component is taken out, the beam is moved, the mounting head is moved in the plane direction, and the held electronic component is mounted on the substrate.

  Patent Document 1 discloses a beam moving mechanism that moves a beam by rotating a screw shaft provided in the Y direction by a drive motor.

JP 2012-186232 A

  In an electronic component mounting apparatus having such a beam moving mechanism, for example, in a mechanism in which the beam moving mechanism includes a screw shaft and the beam is moved by rotating the screw shaft by a motor, an operator manually moves the beam. In order to move or move the beam in the Y direction by pushing or pulling, it is necessary to open the cover of the apparatus and manually move the beam with a certain amount of force.

  SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to make it possible to easily move a beam when an electronic component mounting apparatus is not in operation, and to greatly simplify the designation of the movement destination of a mounting head by an operator. .

Therefore, in the first invention, a beam that moves in the Y direction by the Y-axis drive mechanism and a mounting that moves in the X direction along the beam by the X-axis drive mechanism provided on the beam and mounts the electronic component on the substrate In an electronic component mounting apparatus comprising a head and a control device for controlling the Y-axis drive mechanism and the X-axis drive mechanism,
A monitor that displays the current position of the mounting head that has stopped moving and allows the operator to specify the position of the mounting head to move to, and displays the specified position of the mounting head to move to The control device controls the X-axis drive mechanism and the Y-axis drive mechanism so that the mounting head moves to a designated destination position.

  According to a second invention, in the first invention, the monitor includes a touch panel switch, and by pressing the touch panel switch, a position of a movement destination of the mounting head is specified, and a position of the movement destination is It is displayed on a monitor.

  In a third aspect based on the second aspect, the monitor displays a movable range in the Y direction and a movable range in the X direction of the mounting head, and the beam and the mounting head are located inside the movable range. Is displayed.

  According to a fourth aspect, in the third aspect, the monitor displays the mounting head stopped at the current position inside the movable range, and the specified movement destination of the mounting head. Is displayed in a display form different from the display form of the mounting head at the current position.

  According to a fifth invention, in any one of the first to fourth inventions, the X-axis drive mechanism includes a screw shaft disposed in the X direction, and an X-axis motor that rotates the screw shaft. Features.

  The present invention makes it possible to easily move the beam when the electronic component mounting apparatus is stopped, and to greatly simplify the designation of the movement destination of the mounting head by the operator.

It is a schematic plan 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 the flowchart which concerns on the operation | movement at the time of moving a head. It is a figure which shows the display screen of movement position designation | designated of the mounting head in a monitor. It is explanatory drawing of the movement range of each mounting head. It is a figure which shows the display screen after completion | finish of a movement of the mounting head in a monitor.

  Hereinafter, an embodiment of an electronic component mounting apparatus constituting a production line for mounting electronic components on a printed circuit board will be described with reference to the drawings. FIG. 1 is a plan view of an electronic component mounting apparatus 1, and a component supply unit 3 for supplying various electronic components one by one to a component extraction section (component suction extraction position) on a machine base 2 of the mounting apparatus 1. FIG. Are arranged side by side. A supply conveyor 4, a positioning unit 5, and a discharge conveyor 6 are provided between the opposing component supply unit 3 groups. The supply conveyor 4 transports a printed circuit board P as a substrate received from an upstream device to the positioning unit 5, and electronic components are mounted on the substrate P positioned and fixed by a positioning mechanism (not shown) in the positioning unit 5. Then, it is conveyed to the discharge conveyor 6, and is conveyed to a downstream apparatus through this discharge conveyor 6.

  8A and 8B are a pair of beams that are long in the X direction. Each beam is provided corresponding to each beam, and a Y axis motor 9 provided in the Y direction (in FIG. 2, only one Y axis motor is used). The screw shaft 10 is rotated by driving (shown), and individually moves in the Y direction above the component suction and extraction positions of the printed circuit board P and the component supply unit 3 along the pair of left and right guides 11. The Y-axis motor 9 and the screw shaft 10 constitute a Y-axis drive mechanism. The beams 8A and 8B may be driven by a linear motor regardless of the screw shaft 10.

  Each of the beams 8A and 8B is provided with mounting heads 7A and 7B that move along a guide (not shown) by an X-axis motor 12 as an X-axis drive mechanism in the longitudinal direction, that is, in the X direction (see FIG. 2, only one X-axis motor is illustrated among the X-axis motors provided in the beams 8A and 8B, and the X-axis drive mechanism may be configured by a screw shaft similar to the Y-axis. Further, it may be configured to be driven by a linear motor.) Each mounting head 7A or 7B is equipped with two vertical axis motors 13 for vertically moving the plurality of suction nozzles 17A, 17B or 17C, 17D, and a θ-axis motor 14 for rotating around the vertical axis. Each is installed. Accordingly, the suction nozzles of the two mounting heads 7A and 7B can move in the X direction and the Y direction, can rotate around a vertical line, and can move up and down.

  Reference numeral 16 denotes a component recognition camera that captures an image of electronic components sucked and held by suction nozzles 17A, 17B, 17C, and 17D as component holders. Reference numeral 18 denotes a height level measuring device such as a laser displacement meter provided on the mounting heads 7A and 7B. The height is measured by the positioning unit 5 by irradiating the printed board P with laser light and receiving the reflected light. The height level of the printed circuit board P is measured.

  Next, in the control block diagram of FIG. 2, each element of the electronic component mounting apparatus 1 is centrally controlled by a CPU (Central Processing Unit) 30, and a ROM (Read An only memory (31) and a RAM (random access memory) 32 for storing various data are connected via a bus line 33. Further, a monitor 34 for displaying an operation screen and the like, and a touch panel switch 35 as input means formed on the display screen of the monitor 34 are connected to the CPU 30 via an interface 36. The Y-axis motor 9 and the like are connected to the CPU 30 via a drive circuit 38 and an interface 36. In addition, by pressing the touch panel switch 35 as an input means, or by using a pointing device such as a mouse 39 or the like, the position is specified by a cursor displayed on the monitor screen, and various settings or instructions can be made. it can.

  The RAM 32 stores mounting data relating to mounting of electronic components of one electronic component mounting apparatus 1 constituting the production line of the printed circuit board P for each type of the printed circuit board P. For each number), X-coordinate, Y-coordinate and angle information as mounting coordinates of each electronic component in the printed circuit board P, arrangement number information of each component supply unit 3, and the like are stored.

  In addition to the mounting data handled only by the electronic component mounting apparatus 1, when a plurality of electronic component mounting apparatuses 1 are arranged side by side as a production line, all electronic components mounted on the printed circuit board P are displayed. Mounting data related to mounting, in other words, mounting data composed of the sum (see FIG. 3) of the mounting data of all the electronic component mounting devices arranged in parallel is also stored in the RAM 32.

  The RAM 32 stores information on the types of electronic components corresponding to the component supply unit arrangement numbers of the component supply units 3 of the electronic component mounting apparatus 1, that is, component arrangement data. In the case where a plurality of electronic component mounting apparatuses 1 are arranged side by side, arrangement data for each of the plurality of electronic component mounting apparatuses 1 is stored in the RAM 32.

  Further, component library data relating to the length of the electronic component in the X direction and Y direction, the type of storage tape for storing the electronic component, and the like is stored for each component ID of the electronic component mounted in all the electronic component mounting apparatuses. .

  A recognition processing device 37 is connected to the CPU 30 via the interface 36. The recognition processing device 37 performs recognition processing of an image captured by the component recognition camera 16, and the processing result is sent to the CPU 30. Is sent out. In other words, the CPU 30 outputs an instruction to the recognition processing device 37 so as to perform recognition processing (calculation of misalignment amount, etc.) on the image captured by the component recognition camera 16 and receives the recognition processing result from the recognition processing device 37. is there.

  Hereinafter, the production operation of the printed circuit board P will be described. First, when the printed circuit board P is inherited from an upstream device (not shown) and exists on the supply conveyor 4, the printed circuit board P on the supply conveyor 4 is positioned by the positioning unit 5. Move to.

  At this time, the printed circuit board P is locked and stopped by a positioning pin (not shown) of the position regulating device as a reference in the substrate transport direction. Then, the Z clamp mechanism (not shown) is operated, and the level of the printed circuit board P is fixed, and the printed circuit board P can be positioned in the vertical direction. Can be fixed.

  Further, backup pins necessary for the printed circuit board P to be produced are inserted into a plurality of concave grooves of the backup base (not shown), and when the backup base rises, the backup pins hit the back surface of the printed circuit board P. The substrate P is pushed up and supported so as to hold the substrate P horizontally.

  In this way, the positioning operation of the printed circuit board P is completed.

  Next, according to the mounting data stored in the RAM 32 on the printed circuit board P conveyed to the positioning unit 5, an electronic component to be mounted by any of the suction nozzles 17 </ b> A, 17 </ b> B, 17 </ b> C, 17 is sent from a predetermined component supply unit 3. Each electronic component sucked and held by the suction nozzle is picked up and picked up, picked up and held by the pick-up nozzle, recognized and processed by the recognition processing device 37, and mounting of mounting data based on the result The electronic components are respectively mounted on the printed circuit board P while correcting the displacement by adding the component recognition result to the coordinates.

  As described above, when the electronic component is mounted on the printed circuit board P, for example, the component recognition camera 16 images each electronic component sucked and held by the suction nozzle and is recognized by the recognition processing device 37. As a result of processing, when it is determined that the part is falling, this is displayed on the monitor 34. When the operator confirms the display and operates a stop switch (not shown) of the electronic component mounting apparatus 1, the motor of each axis such as the Y-axis motor 9 stops and the operation of the electronic component mounting apparatus 1 stops.

As described above, when the operation of the electronic component mounting apparatus 1 is stopped, that is, the electronic component mounting apparatus 1 stops the mounting operation of the electronic component on the printed circuit board, for example, each mounting head 7A, 7B is electronic. An operation by the operator when the operator automatically moves the mounting head 7B when the beam 8A, 8B is stopped while the components are not held, and an electronic component mounting device 1 will be described with reference to the flowcharts of FIGS. 1, 2, and 3, the display screen of the monitor of FIG. 4, and the explanatory diagram of the movement range of each mounting head of FIG.
In addition, for example, when an electronic component supply device is out of components and the electronic component mounting device stops the operation of mounting the electronic component on the substrate, or the type of the substrate on which the electronic component is mounted is changed, In order to make a setup such as changing the width of the conveyance path, the mounting head 7B is automatically moved as follows even when the electronic component mounting apparatus stops the mounting operation of the electronic component on the board. Can do.

  When the operator presses a page feed switch on a display screen (not shown) displayed on the monitor 34 when the electronic component mounting apparatus 1 is stopped, an operation screen for mounting head movement instruction shown in FIG. The operation screen is displayed on the monitor 34 (step S1). This operation can be performed without opening the cover that covers the mounting heads 7A and 7B and the beams 8A and 8B when the electronic component mounting apparatus 1 is stopped.

  When the operation screen is displayed, the CPU 30 acquires the X-axis current position and the Y-axis current position, which are the current positions of the mounting heads 7A and 7B, from the RAM 32 (step S2). Also, the CPU 30. The X-axis current position and the Y-axis current position B, which are the current position of the mounting head 7A, are acquired from the RAM 32 (step S3). Based on the signal from the CPU 30, the monitor 34 displays a display screen for designating the movement position of the mounting head schematically representing the plane of the electronic component mounting apparatus, as shown in FIG. In this display screen, the Y-direction range including the Y-direction movable ranges of the mounting heads 7A and 7B is defined as the vertical side L1, and the common X-direction movable range of the mounting heads 7A and 7B is defined as the horizontal side. A rectangular movable range L designated L2 is displayed (see FIG. 5), and the current positions of the mounting heads 7A and 7B are drawn and displayed inside the movable range as indicated by solid lines (step S4). . At this time, the positions of the beams 8A and 8B are schematically drawn and displayed together with the current positions of the mounting heads.

  Next, the operator touches the mounting head to be moved on the monitor, for example, the mounting head 7B, while viewing the display on the monitor 34 (step S5). When the operator touches, the displayed state of the mounting head 7B is switched from the lighting state to the blinking state (step S6), and it can be seen from the display screen of the monitor 34 that it has been designated.

Next, when the operator touches a place (movement destination) where the mounting head 7b is to be moved on the screen of the monitor 34 (step S7), the CPU 30 determines the positioning unit according to the touched position based on the signal from the monitor 34. 5 is calculated (step S8). Then, the CPU 30 checks whether or not the designated movement position (movement destination position) is within the movement range of the mounting head 7B (step S9).

  That is, as shown in FIG. 5, the X axis movable range and the Y axis movable range of both the mounting head 7A and the mounting head 7B are stored in the RAM 30 or POM 31 in advance. Then, it is determined whether or not the moving position of the mounting head 7B is within the X axis movable range and the Y axis movable range of the mounting head 7B, and the moving position of the mounting head 7B is X axis movable of the mounting head 7B. When it is within the range and within the Y-axis movable range, the determination result (step S10) is “OK”, and as indicated by the broken line in FIG. The mounting head 7b blinks and is displayed at the moving position (step S11).

Further, the CPU 30 outputs a driving signal to the X-axis motor 9 and the Y-axis motor 12 simultaneously with the above-described blinking display instruction of the mounting head 7b, for example, and the motors of the respective axes start operation, both moving along the beam 8B, beams 8B is moved in the Y-direction, the mounting head 7B starts to move in the XY direction (step S12). Then, the X-axis motor 9 and the Y-axis motor 12 are stopped, and the movement of the mounting head 7B is completed (step S13).

  Based on the signal from the CPU 30, the monitor 34 switches the blinking state of the mounting head 7B at the moving position to the lighting state, and the mounting head 7b is drawn as shown by the solid line in FIG. 6 (step S14), and the mounting head 7B. This movement instruction operation and movement operation are completed.

As described on the following, an electronic component mounting apparatus 1 is stopped mounting operation of electronic components on a printed board, the worker is when it is desired to move the mounting head 7B is moved locate the mounting head which is displayed on the monitor 34 On the display screen, the operator can specify the destination of the mounting head B easily and in a short time by specifying the monitor screen, that is, touch panel switch or by moving the cursor of the mouse, each beam 8A, even when the screw shaft is used in the mechanism for moving the 8B, by specifying the movement position, the mounting head 7B to moving position without moving the operator manually mounting head 7B automatic Can be moved. Further, even when the mounting heads 7A and 7B are moved by driving a linear motor, they can be moved more easily than manually. However, in the case of screw shaft driving, a larger force is required than when manually pushing, so it is effective to automatically move the monitor 34 by designating the destination.

  Further, at the time of checking the designated movement position in step S9 described above, it is determined that the movement position of the mounting head 7B is not in either the X-axis movable range or the Y-axis movable range of the mounting head 7B. In this case, the determination result (step S10) is “NG”, and the blinking of the mounting head 7B is terminated on the display screen of the monitor 34 in accordance with an instruction from the CPU 30 (step S15).

  The display screen of the monitor 34 displays “cannot move to the designated position” at the position indicated by the broken line in accordance with an instruction from the CPU 30 (step S16). With this display, the operator can immediately know that the designated movement position is incorrect after the designation of the position, and can instruct the movement position again.

  Note that the mounting position of the mounting head 7A can also be designated using the display screen of the monitor 34, as with the mounting head 7b. Further, the mounting head 7A can be automatically moved to the designated position.

As shown in FIG. 4, when the movement position of one mounting head 7B (the position of the mounting head 7b in FIG. 4) is designated, the position of the mounting head 7a indicated by the broken line is indicated by the other mounting head 7A. When this stop position is closer to the mounting head 7B before the movement than the position of the movement destination of the mounting head 7B in the Y direction (when it is the lower position in FIG. 4), the mounting is performed. Before or during the movement of the head 7B, the mounting head 7A is in a direction away from the mounting head 7B, and is a position above the position to which the mounting head 7B is moved (a position represented by 7b) in FIG. The CPU 30 controls the Y-axis motor so that the mounting head 7a moves in the Y direction. As a result, when the mounting head 7B moves to the position of the mounting head 7b, it is possible to avoid interference with the mounting head 7a. By specifying the moving position, the mounting head 7B can be mounted regardless of the current position of the mounting head 7A. The head 7B can be moved to the movement position. Alternatively, the mounting head 7A may move and retract in the X direction that does not interfere with the movement of the mounting head 7B. Although only the mounting head may be displayed on the monitor, it is easy to identify which mounting head of the pair of mounting heads is displayed by displaying the beam together.
In addition, the operator presses the touch panel of the monitor provided in the electronic component mounting apparatus, switches to a screen that can specify the movement destination of the mounting head, inputs the X coordinate and Y coordinate of the movement destination, and then moves the mounting head. The movement may be instructed. However, in this case, the coordinate input operation becomes complicated for the operator in order to prevent mistakes in inputting the coordinates by the operator, so the position of the moving destination should be specified on the touch panel on the monitor. Thus, the mounting head can be moved more easily.

  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 5 Positioning part 7A, 7B Mounting head 7b Mounting head 8A, 8B which showed the movement destination Beam 9 Y-axis motor (Y-axis drive mechanism)
10 Screw shaft (Y-axis drive mechanism)
12 X-axis motor (X-axis drive mechanism)
17A, B, C, D Suction nozzle 18 Height level measuring device 30 CPU (control device)
32 RAM
34 Monitor (display device)
35 Touch Panel Switch 39 Mouse P Printed Circuit Board

Claims (4)

A beam that moves in the Y direction by the Y-axis drive mechanism, a mounting head that is provided on the beam and moves in the X direction along the beam by the X-axis drive mechanism, and mounts electronic components on the substrate, and the Y-axis drive mechanism And an electronic component mounting apparatus comprising a control device for controlling the X-axis drive mechanism,
An input means capable of designating a position of a movement destination of the mounting head by an operator;
And displays the current position of the mounting head has stopped moving, and a monitor for displaying the position of the destination of the mounting head specified by said input means,
The control device controls the X-axis drive mechanism and the Y-axis drive mechanism so that the mounting head moves to a specified destination position ,
The electronic component mounting apparatus , wherein the monitor displays a movable range in the Y direction and a movable range in the X direction of the mounting head, and displays the beam and the mounting head inside the movable range . Wherein the input means is a touch panel switch is provided on the monitor, by pressing the touch panel switch, the destination position of the mounting head is specified, and the position of the destination is displayed on the monitor The electronic component mounting apparatus according to claim 1, wherein: The monitor displays the mounting head stopped at the current position inside the movable range, and displays the position of the specified movement destination of the mounting head on the mounting head at the current position. electronic component mounting apparatus according to claim 1 or 2, characterized in that displayed in a different display form and the form. A screw shaft that the X-axis driving mechanism is arranged in the X direction, the electronic component mounting apparatus according to any one of claims 1 to 3, characterized in that it comprises an X-axis motor for rotating the screw shaft .

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