JP2015216175A - Electronic component mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the number of electronic components that can be mounted on a substrate 8.SOLUTION: An electronic component mounting device 10 for mounting a lead type electronic component by inserting into an insertion hole of a substrate while holding the body thereof, includes an electronic component supply device 90 for supplying the lead type electronic component, a head 15 including a nozzle 32 for holding the lead type electronic component supplied from the electronic component supply device, a head movement mechanism 16 for moving the head 15, a bent 106 capable of abutting against the leads of the lead type electronic component, and supported movably, and a lead processing device 100 for bending the lead substantially at a right angle, while maintaining the posture of the lead type electronic component, by moving the bent.

Description

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

  An electronic component mounting apparatus for mounting an electronic component on a substrate has a head including a nozzle, holds the electronic component with the nozzle, and mounts the electronic component on the substrate. The electronic component mounting apparatus sucks the components in the electronic component supply apparatus by moving the nozzle of the head in a direction orthogonal to the surface of the substrate. After that, the head is moved relatively in the direction parallel to the surface of the substrate, and when it reaches the mounting position of the sucked component, the head nozzle is moved in the direction perpendicular to the surface of the substrate and sucked by bringing it closer to the substrate. Mount electronic components on the board.

  Here, as an electronic component mounted on a substrate, there is a lead-type electronic component including a main body and leads connected to the main body, in addition to the mounted electronic component mounted on the substrate. In this case, the lead type electronic component is mounted by inserting a lead into a hole formed in the substrate. In this case, an electronic component that is mounted on the substrate without being inserted into the insertion hole (substrate hole), for example, SOP, QFP, and the like is a mountable electronic component. As an electronic component mounting apparatus for mounting a lead type electronic component on a substrate, for example, there are apparatuses described in Patent Documents 1 and 2. Patent Document 1 describes an electronic component mounting machine including a component mounting machine that mounts both a mounted electronic component that is attracted by a suction head and a lead type electronic component that is sandwiched by a sandwiching head and then clinched after inserting a substrate. Yes. Patent Document 2 describes an electronic component mounting apparatus in which a mounting head for mounting a mounting type electronic component and an insertion head for mounting a lead type electronic component are integrally formed.

  Moreover, it is an electronic component supply device that supplies an electronic component to a position where the operator can pick up the electronic component so that the operator can manually insert the electronic component, but the radial lead type in which lead wires are arranged in the radial direction. Some supply electronic parts (Patent Document 3).

Japanese Patent Laid-Open No. 5-335582 JP-A-9-83121 Japanese Patent Publication No. 7-48595

  Like the device described in Patent Document 1, since the lead-type electronic components having leads can be mounted on the substrate, the number of electronic components that can be mounted on the substrate can be increased, and the operator can manually mount the components on the substrate. It is possible to reduce the number of electronic components to be used. In recent years, it has been desired to further increase the number of electronic components that can be mounted on the apparatus.

  The present invention has been made in view of the above, and an object thereof is to provide an electronic component mounting apparatus capable of increasing the number of electronic components that can be mounted on a substrate.

  The present invention relates to an electronic component mounting apparatus for holding a main body of a lead type electronic component and mounting the lead type electronic component by inserting the lead into an insertion hole of a substrate, the electronic component supply device supplying the lead type electronic component, and the electronic A head including a nozzle for holding a lead-type electronic component supplied from a component supply device; a head moving mechanism for moving the head; and a fold that is movably supported by the lead of the lead-type electronic component. A lead processing apparatus that has a bent portion and moves the bent portion to bend the lead substantially at a right angle while maintaining the posture of the lead-type electronic component.

  Here, the lead processing apparatus includes a support base that is formed with an opening into which the lead is inserted and is in contact with the main body, and the bent portion of the lead-type electronic component held on the support base. It is preferable that the lead includes a bent portion that bends with the opening of the support base as a base point.

  In addition, the lead processing apparatus includes a posture changing unit that rotates the support base around an axis parallel to the surface of the substrate and rotates the lead-type electronic component in contact with the support base. It is preferable.

  In addition, it is preferable that the support base is formed with a plurality of openings into which the leads are inserted, and can support the plurality of lead-type electronic components simultaneously.

  According to the present invention, it is possible to mount electronic components with bent leads on a substrate, and it is possible to mount more electronic components.

FIG. 1 is a schematic diagram showing a schematic configuration of an electronic component mounting apparatus. FIG. 2 is a schematic diagram illustrating a schematic configuration of an example of a component supply unit. FIG. 3 is a schematic diagram showing a schematic configuration of the head of the electronic component mounting apparatus. FIG. 4 is a schematic diagram showing a schematic configuration of the head of the electronic component mounting apparatus. FIG. 5 is an explanatory diagram illustrating an example of a nozzle. FIG. 6 is a schematic configuration diagram illustrating an example of a lead-type electronic component. FIG. 7 is a schematic configuration diagram showing an example of a processed lead-type electronic component. FIG. 8 is a top view showing a schematic configuration of the lead processing apparatus. FIG. 9 is a side view showing a schematic configuration of the lead processing apparatus. FIG. 10 is a side view illustrating a schematic configuration of the support base and the bent portion. FIG. 11 is a top view illustrating a schematic configuration of the support base and the bent portion. FIG. 12 is an explanatory diagram for explaining the function of the posture changing unit. FIG. 13 is an explanatory diagram for explaining the operation of the lead machining apparatus. FIG. 14 is an explanatory diagram for explaining the operation of the lead machining apparatus. FIG. 15 is an explanatory diagram for explaining the operation of the lead machining apparatus. FIG. 16 is an explanatory diagram illustrating an example of a nozzle. FIG. 17 is an explanatory diagram illustrating an example of a nozzle. FIG. 18 is an explanatory diagram illustrating an example of a nozzle.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited by the following modes for carrying out the invention (hereinafter referred to as embodiments). In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. Furthermore, the constituent elements disclosed in the following embodiments can be appropriately combined.

  Embodiments of an electronic component mounting apparatus according to the present invention will be described below in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. The electronic component mounting apparatus of the present invention has a lead, and the lead is inserted into a substrate hole (insertion hole, hole) of the substrate, so that the electronic component mounted on the substrate, a so-called lead-type electronic component (insertion) This is an electronic component mounting apparatus for mounting a mold electronic component). The electronic component mounting apparatus has a function of mounting a lead type electronic component (insertion type electronic component). Here, the lead type electronic component is mounted by inserting a lead into a hole formed in the substrate. Further, electronic components mounted on the substrate without being inserted into the insertion hole (substrate hole), for example, SOP, QFP, etc., are mounted electronic components. The electronic component mounting apparatus may have a function of mounting a mountable electronic component mounted on the substrate. An electronic component mounting apparatus 10 according to the following embodiment has a function of mounting both a mounted electronic component and a lead electronic component.

  Next, an electronic component mounting apparatus 10 capable of mounting both the mountable electronic component and the lead type electronic component of the present embodiment will be described with reference to FIGS. 1 to 5. The electronic component mounting apparatus 10 can mount both a mountable electronic component to be mounted by placing it on a substrate and a lead type electronic component (insertable electronic component) to be mounted by inserting a lead into an insertion hole of the substrate. It is a device that can. The electronic component mounting apparatus 10 can mount both the mounted electronic component and the lead electronic component, or can mount only one of them. That is, the electronic component mounting apparatus 10 can mount both a mounted electronic component and a lead type electronic component, and can be used for various purposes depending on the board to be manufactured and the layout of other electronic component mounting apparatuses. Can do.

  FIG. 1 is a schematic diagram showing a schematic configuration of an electronic component mounting apparatus. An electronic component mounting apparatus 10 shown in FIG. 1 is an apparatus for mounting electronic components on a substrate 8. The electronic component mounting apparatus 10 includes a housing 11, a board transport unit 12, component supply units 14 f and 14 r, a head 15, an XY movement mechanism 16, a VCS unit 17, a replacement nozzle holding mechanism 18, and a component storage. The unit 19, the control device 20, the operation unit 40, the display unit 42, and the lead processing device 100 are included. The XY movement mechanism 16 includes an X-axis drive unit 22 and a Y-axis drive unit 24. Here, as shown in FIG. 1, the electronic component mounting apparatus 10 according to the present embodiment includes component supply units 14 f and 14 r on the front side and the rear side with the board conveyance unit 12 as the center. In the electronic component mounting apparatus 10, the component supply unit 14 f is disposed on the front side of the electronic component mounting apparatus 10, and the component supply unit 14 r is disposed on the rear side of the electronic component mounting apparatus 10. In the following description, the two component supply units 14f and 14r are referred to as a component supply unit 14 unless particularly distinguished.

  The board | substrate 8 should just be a member which mounts an electronic component, and the structure is not specifically limited. The substrate 8 of the present embodiment is a plate-like member, and a wiring pattern is provided on the surface. Solder which is a bonding member for bonding the wiring pattern of the plate-like member and the electronic component is attached to the surface of the wiring pattern provided on the substrate 8 by reflow. The substrate 8 is also formed with through holes (insertion holes, substrate holes) into which electronic components are inserted.

  The substrate transport unit 12 is a transport mechanism that transports the substrate 8 in the X-axis direction in the drawing. The substrate transport unit 12 includes a rail that extends in the X-axis direction, and a transport mechanism that supports the substrate 8 and moves the substrate 8 along the rail. The substrate transport unit 12 transports the substrate 8 in the X-axis direction by moving the substrate 8 along the rail by the transport mechanism in a direction in which the mounting target surface of the substrate 8 faces the head 15. The board transport unit 12 transports the board 8 supplied from the equipment supplied to the electronic component mounting apparatus 10 to a predetermined position on the rail. The head 15 mounts an electronic component on the surface of the substrate 8 at a predetermined position. When the electronic component is mounted on the substrate 8 that has been transported to a predetermined position, the substrate transport unit 12 transports the substrate 8 to an apparatus that performs the next process. Various structures can be used as the transport mechanism of the substrate transport unit 12. For example, a belt type transport integrated with a transport mechanism that combines a rail disposed along the transport direction of the substrate 8 and an endless belt that rotates along the rail and transports the substrate 8 mounted on the endless belt. A mechanism can be used.

  In the electronic component mounting apparatus 10, a component supply unit 14f is disposed on the front side, and a component supply unit 14r is disposed on the rear side. The front-side component supply unit 14f and the rear-side component supply unit 14r each hold a large number of electronic components mounted on the substrate 8, and can supply them to the head 15, that is, they can be held (sucked or gripped) by the head 15. The electronic component supply apparatus which supplies to a holding position in a state is provided. Both the component supply units 14f and 14r of this embodiment supply lead-type electronic components having a main body and leads connected to the main body.

  FIG. 2 is a schematic diagram illustrating a schematic configuration of an example of a component supply unit. As shown in FIG. 2, the component supply unit 14 includes a plurality of electronic component supply devices (hereinafter also simply referred to as “component supply devices”) 90 and 90 a.

  Specifically, the component supply unit 14 is mounted with an electronic component holding tape (radial component tape) in which a plurality of radial lead type electronic components (radial lead components) are fixed to the tape body. A lead of the lead type electronic component held by the electronic component holding tape is cut at a holding position (second holding position), and the lead type electronic component at the holding position is held by a suction nozzle or a grip nozzle provided in the head. In addition to the radial lead type electronic component, the component supply unit 14 may be mounted with an electronic component holding tape (chip component tape) in which a plurality of mounted electronic components are fixed to the tape body. Moreover, the component supply unit 14 may install a stick feeder or a tray feeder as the other electronic component supply device 90a. A plurality of component supply apparatuses 90 and 90 a shown in FIG. 2 are held by a support base (bank) 96. Further, the support table 96 can be mounted with other devices (for example, a measuring device, a camera, etc.) of the component supply devices 90 and 90a.

  The component supply unit 14 includes a plurality of types of electronic component supply devices that are different in the types of electronic components to be mounted, the mechanisms for holding the electronic components, or the supply mechanisms. 90, 90a. Further, the component supply unit 14 may include a plurality of electronic component supply devices 90 and 90a of the same type. The component supply unit 14 is preferably configured to be detachable from the apparatus main body.

  The component supply device 90 supplies a radial lead type electronic component to the head 15 using an electronic component holding tape configured by sticking a plurality of radial lead type electronic component leads to the tape. The component supply device 90 holds an electronic component holding tape and sends the held electronic component holding tape. That is, the component supply device 90 is a tape feeder that moves a held radial lead type electronic component to a holding region (a suction position, a gripping position, a holding position) where the electronic component can be held by the nozzles of the head 15. Further, the component supply device 90 can hold the radial lead type electronic component having the lead fixed with the tape in a predetermined position by cutting and separating the lead of the radial lead type electronic component moved to the holding region. State. Further, the radial lead type electronic component can be held (adsorbed and gripped) by the nozzle of the head 15. The plurality of component supply apparatuses 90 may supply different types of electronic components or separate electronic components. Further, the component supply device 90 is not limited to a plurality of radial lead type electronic components on a tape, and a bowl feeder, an axial feeder, a stick feeder, a tray feeder, or the like can also be used.

  The electronic component supply device 90a supplies an electronic component to the head 15 using an electronic component holding tape that holds a chip-type electronic component mounted on the tape. In the electronic component holding tape, a plurality of storage chambers are formed in the tape, and the electronic components are stored in the storage chamber. The electronic component supply device 90 a is a tape feeder that holds an electronic component holding tape, sends the held electronic component holding tape, and moves the storage chamber to a holding region where the electronic components can be adsorbed by the nozzles of the head 15. By moving the storage chamber to the holding area, the electronic component accommodated in the storage chamber can be exposed to a predetermined position, and the electronic component is sucked and held by the nozzle of the head 15. Can do. The electronic component supply device 90a is not limited to a tape feeder, and can be various chip component feeders that supply chip-type electronic components. As the chip component feeder, for example, a stick feeder, a tape feeder, or a bulk feeder can be used.

  The head 15 holds (sucks or grips) the electronic component held by the component supply unit 14f or the electronic component held by the component supply unit 14r with a nozzle, and the held electronic component is moved to a predetermined position by the substrate transport unit 12. It is a mechanism for mounting on the moved substrate 8. Further, when the component supply unit 14r includes the electronic component supply device 90a, the head 15 mounts (mounts) a chip-type electronic component (mounted electronic component) held by the electronic component supply device 90a on the substrate 8. It is a mechanism to do. The configuration of the head 15 will be described later. The chip-type electronic component (mounted electronic component) is a leadless electronic component that does not include a lead that is inserted into an insertion hole (through hole) formed in the substrate. Examples of the on-board electronic component include SOP and QFP as described above. The chip-type electronic component is mounted on the substrate without inserting the lead into the insertion hole.

  The XY moving mechanism (head moving mechanism) 16 is a moving mechanism that moves the head 15 in the X-axis direction and the Y-axis direction in FIG. 1, that is, on a plane parallel to the surface of the substrate 8. A shaft drive unit 24. The X-axis drive unit 22 is connected to the head 15 and moves the head 15 in the X-axis direction. The Y-axis drive unit 24 is connected to the head 15 via the X-axis drive unit 22 and moves the head 15 in the Y-axis direction by moving the X-axis drive unit 22 in the Y-axis direction. The XY moving mechanism 16 can move the head 15 to the position facing the substrate 8 or the position facing the component supply units 14f and 14r by moving the head 15 in the XY axis direction. The XY moving mechanism 16 adjusts the relative position of the head 15 and the substrate 8 by moving the head 15. Thus, the electronic component held by the head 15 can be moved to an arbitrary position on the surface of the substrate 8, and the electronic component can be mounted at an arbitrary position on the surface of the substrate 8. That is, the XY movement mechanism 16 moves the head 15 on the horizontal plane (XY plane), and places the electronic components in the electronic component supply devices of the component supply units 14f and 14r on the substrate 8 at predetermined positions (mounting position, mounting position). It becomes a transfer means to transfer to. As the X-axis drive unit 22, various mechanisms that move the head 15 in a predetermined direction can be used. As the Y-axis drive unit 24, various mechanisms that move the X-axis drive unit 22 in a predetermined direction can be used. As a mechanism for moving the object in a predetermined direction, for example, a linear motor, a rack and pinion, a transport mechanism using a ball screw, a transport mechanism using a belt, or the like can be used.

  The VCS unit 17, the replacement nozzle holding mechanism 18, the component storage unit 19, and the lead processing device 100 are the movable region of the head 15 and the position in the Z direction is vertically lower than the head 15 in the XY plane. It is arranged at the position that becomes the side. In the present embodiment, the VCS unit 17, the replacement nozzle holding mechanism 18, the component storage unit 19, and the lead processing apparatus 100 are disposed adjacent to each other between the substrate transport unit 12 and the component supply unit 14 r. .

  The VCS unit (component state detection unit, state detection unit) 17 is an image recognition device, and includes a camera for photographing the vicinity of the nozzles of the head 15 and an illumination unit for illuminating the photographing region. The VCS unit 17 recognizes the shape of the electronic component sucked by the nozzle of the head 15 and the holding state of the electronic component by the nozzle. More specifically, when the head 15 is moved to the facing position, the VCS unit 17 captures the nozzle of the head 15 from the lower side in the vertical direction, and analyzes the captured image so that it is adsorbed by the nozzle. Recognize the shape of the electronic component and the holding state of the electronic component by the nozzle. The VCS unit 17 sends the acquired information to the control device 20.

  The replacement nozzle holding mechanism 18 is a mechanism that holds a plurality of types of nozzles. The replacement nozzle holding mechanism 18 holds a plurality of types of nozzles in a state where the head 15 can be attached and detached. Here, the replacement nozzle holding mechanism 18 of the present embodiment holds a suction nozzle that holds the electronic component by suction and a gripping nozzle that holds the electronic component by gripping the electronic component. The head 15 changes the nozzle to be mounted by the replacement nozzle holding mechanism 18, and supplies air pressure to the mounted nozzle to drive it, thereby holding the electronic component to be held under appropriate conditions (suction or gripping). be able to.

  The component storage unit 19 is a box that stores electronic components that the head 15 holds with nozzles and is not mounted on the substrate 8. That is, the electronic component mounting apparatus 10 is a disposal box for discarding electronic components that are not mounted on the substrate 8. When there is an electronic component that is not mounted on the substrate 8 among the electronic components held by the head 15, the electronic component mounting apparatus 10 moves the head 15 to a position facing the component storage unit 19 and holds the held electronic component. By releasing the part, the electronic part is put into the part storage unit 19.

  The lead processing apparatus 100 is an apparatus that processes leads of lead-type electronic components among electronic components that the head 15 holds with nozzles and is mounted on the substrate 8. The lead processing apparatus 100 bends the lead of the lead type electronic component and changes the posture of the lead type electronic component. The lead processing apparatus 100 will be described later.

  The control device 20 controls each part of the electronic component mounting apparatus 10. The control device 20 is an aggregate of various control units. The operation unit 40 is an input device through which an operator inputs an operation. Examples of the operation unit 40 include a keyboard, a mouse, and a touch panel. The operation unit 40 sends the detected various inputs to the control device 20. The display unit 42 is a screen that displays various types of information to the worker. Examples of the display unit 42 include a touch panel and a vision monitor. The display unit 42 displays various images based on the image signal input from the control device 20.

  Although the electronic component mounting apparatus 10 of the present embodiment has one head, two heads may be provided corresponding to each of the component supply units 14f and 14r. In this case, two X-axis drive units are provided, and the two heads can be moved independently by moving the two heads in the XY directions, respectively. Furthermore, the electronic component mounting apparatus 10 is also preferably arranged with two board transfer parts 12 in parallel. The electronic component mounting apparatus 10 can move the two substrates 8 alternately to the electronic component mounting positions by the two substrate transfer units 12 and mount the components alternately by the two heads 15. Can be installed.

  Next, the configuration of the head 15 will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic diagram showing a schematic configuration of the head of the electronic component mounting apparatus. FIG. 4 is a schematic diagram showing a schematic configuration of the head of the electronic component mounting apparatus. FIG. 3 also shows various control units that control the electronic component mounting apparatus 10 and one component supply device 90 of the component supply unit 14r. As shown in FIGS. 3 and 4, the head 15 is held by an imaging device (substrate state detection unit) 36, a height sensor (detection means) 37, and a nozzle for recognizing marks on the head body 30 and the substrate 8. A laser recognition device (component state detection unit, state detection unit) 38 for determining the shadow of the electronic component main body or lead in the horizontal direction.

  As shown in FIG. 3, the electronic component mounting apparatus 10 includes a control unit 60, a head control unit 62, and a component supply control unit 64. The control unit 60, the storage unit 61, the head control unit 62, and the component supply control unit 64 are part of the control device 20 described above. In addition, the electronic component mounting apparatus 10 is connected to a power source and supplies power supplied from the power source to each unit using the control unit 60, the head control unit 62, the component supply control unit 64, and various circuits. The control unit 60, the storage unit 61, the head control unit 62, and the component supply control unit 64 will be described later.

  The electronic component supply device 90 is a mechanism that supplies the electronic component 80. Here, the electronic component 80 has an electronic component main body (hereinafter simply referred to as “main body”) 82 and two leads 84 arranged in the radial direction of the main body 82. Although the electronic component 80 of this embodiment has two leads 84, the number of leads 84 is not particularly limited. As the electronic component 80, an aluminum electrolytic capacitor is exemplified. In addition to the aluminum electrolytic capacitor, various electronic components having leads can be used as the electronic component 80. In the electronic component supply device 90, the main body 82 of the electronic component 80 in which the leads 84 are held by the electronic component holding tape (radial component tape) is exposed upward. The electronic component supply apparatus 90 moves the electronic component 80 held on the electronic component holding tape to the holding area (suction area, holding area) by pulling out and moving the electronic component holding tape. In the present embodiment, the vicinity of the tip in the Y-axis direction of the component supply device 90 is the holding area. The head 15 holds the electronic component 80 in the holding area using a nozzle. Similarly, in the case of the electronic component supply apparatus 90a, the predetermined position is a holding region for holding the electronic component 80 in which the nozzles of the head 15 are held on the electronic component holding tape.

  The head body 30 includes a head support 31 that supports each part, a plurality of nozzles 32, and a nozzle drive unit 34. As shown in FIG. 4, six nozzles 32 are arranged in a row in the head main body 30 of the present embodiment. The six nozzles 32 are arranged in a direction parallel to the X axis. In addition, as for the nozzle 32 shown in FIG. 4, the suction nozzle which adsorb | sucks and hold | maintains the electronic component 80 is arrange | positioned.

  The head support 31 is a support member connected to the X-axis drive unit 22 and supports the nozzle 32 and the nozzle drive unit 34. The head support 31 also supports the laser recognition device 38.

  The nozzle 32 is a suction mechanism that sucks and holds the electronic component 80. The nozzle 32 has an opening 32a at the tip. The opening 32 a is connected to the nozzle driving unit 34 through an internal cavity and a cavity of the nozzle holding unit 33. The nozzle 32 sucks air from the opening 32a to suck and hold the electronic component 80 at the tip. The nozzle 32 can be attached to and detached from the nozzle holding portion 33, and is stored (stored) in the replacement nozzle holding mechanism 18 when the nozzle 32 is not attached to the nozzle holding portion 33. The nozzle 32 has various shapes and sizes of the opening 32a. In the present embodiment, an adsorption type nozzle having an opening for adsorbing an electronic component is shown. However, an arm that operates by air pressure is used, and a holding type nozzle is used to hold the electronic component by sandwiching it. Can do.

  The nozzle holding unit 33 is a mechanism that holds the nozzle 32 at the end (tip) on the lower side in the vertical direction. For example, the nozzle driving unit 34 is connected to the shaft that moves relative to the head support 31 and the nozzle 32. Socket. The shaft is a rod-shaped member, and is arranged extending in the Z-axis direction. The shaft supports a socket disposed at an end portion on the lower side in the vertical direction. The shaft is supported with respect to the head support 31 in a state where a portion connected to the socket is movable in the Z-axis direction and is rotatable in the θ direction. Here, the Z axis is an axis orthogonal to the XY plane and is a direction orthogonal to the surface of the substrate 8. That is, the θ direction is a direction parallel to the circumferential direction of a circle around the Z axis, which is an axis parallel to the direction in which the nozzle driving unit 34 moves the nozzle 32. The θ direction is the rotation direction of the nozzle 32. A portion of the shaft connected to the socket is moved and rotated in the Z-axis direction and the θ direction by the nozzle driving unit 34.

  The nozzle driving unit 34 moves the nozzle holding unit 33 in the Z-axis direction to move the nozzle 32 in the Z-axis direction, and sucks the electronic component 80 through the opening 32 a of the nozzle 32. Further, the nozzle drive unit 34 rotates the nozzle 32 in the θ direction by rotating the nozzle holding unit 33 in the θ direction when the electronic component 80 is mounted.

  The nozzle driving unit 34 is a mechanism having a Z-axis motor 34a, specifically, a linear motion linear motor whose driving direction is the Z-axis direction as a mechanism for moving the nozzle 32 in the Z-axis direction. The nozzle drive unit 34 moves the shaft of the opening 32a at the tip of the nozzle 32 in the Z-axis direction by moving the nozzle 32 in the Z-axis direction together with the nozzle holding unit 33 by the Z-axis motor 34a. In addition, the nozzle drive unit 34 includes a mechanism configured by, for example, a motor and a transmission element connected to the shaft of the nozzle holding unit 33 as a mechanism for rotating the nozzle 32 in the θ direction. The nozzle driving unit 34 transmits the driving force output from the motor to the shaft of the nozzle holding unit 33 by a transmission element, and rotates the shaft in the θ direction, thereby rotating the tip of the nozzle 32 in the θ direction.

  The nozzle drive unit 34 has a mechanism for sucking the electronic component 80 through the opening 32a of the nozzle 32, that is, as a suction mechanism, for example, an air pipe connected to the opening 32a of the nozzle 32, and a pump connected to the air pipe. And a solenoid valve that switches between opening and closing the pipe of the air pipe. The nozzle drive unit 34 sucks air from the air pipe with a pump, and switches whether to suck air from the opening 32a by switching between opening and closing of the electromagnetic valve. The nozzle drive unit 34 opens the electromagnetic valve and sucks (holds) the electronic component 80 in the opening 32a by sucking air from the opening 32a, and closes the electromagnetic valve and sucks air in the opening 32a by not sucking air from the opening 32a. The electronic component 80 that has been released is released, that is, the electronic component 80 is not sucked (not held) by the opening 32a.

  The head 15 of the present embodiment uses a gripping nozzle, which will be described later, when the upper surface of the main body has a shape that cannot be sucked by the nozzle (suction nozzle) 32 when holding the main body of the electronic component. As with the suction nozzle, the gripping nozzle can release and hold the air from the upper side by opening and closing the movable piece with respect to the fixed piece by sucking and releasing air. Moreover, the head 15 can change the nozzle 32 which the nozzle drive part 34 drives by moving the nozzle 32 by the nozzle drive part 34, and performing replacement | exchange operation | movement.

  The imaging device 36 is fixed to the head support 31 of the head body 30 and images an area facing the head 15, for example, the substrate 8 or the substrate 8 on which the electronic component 80 is mounted. The imaging device 36 has a camera and an illumination device, and acquires an image with the camera while illuminating the visual field with the illumination device. Thereby, an image of a position facing the head body 30, for example, various images of the substrate 8 and the component supply unit 14 can be taken. For example, the imaging device 36 captures an image of a BOC mark (hereinafter also simply referred to as a BOC) or a through hole (insertion hole) as a reference mark formed on the surface of the substrate 8. Here, when a reference mark other than the BOC mark is used, an image of the reference mark is taken.

  The height sensor 37 is fixed to the head support 31 of the head body 30 and measures the distance from the area facing the head 15, for example, the substrate 8 or the substrate 8 on which the electronic component 80 is mounted. The height sensor 37 includes a light emitting element that emits laser light and a light receiving element that receives the laser light reflected and returned at the facing position, and the time from when the laser light is emitted until it is received. It is possible to use a laser sensor that measures the distance from the facing part. In addition, the height sensor 37 processes the distance from the facing portion using the position of the sensor itself and the position of the substrate 8 to measure the height of the facing portion, specifically, the electronic component 80. To detect. The process of detecting the height of the electronic component based on the measurement result of the distance to the electronic component may be performed by the control unit 60.

  The laser recognition device 38 includes a light source 38a and a light receiving element 38b. The laser recognition device 38 is built in the bracket 50. As shown in FIG. 3, the bracket 50 is connected to the lower side of the head support 31. The laser recognition device 38 is a device that detects the state of the electronic component 80 by irradiating the electronic component 80 sucked by the nozzle 32 of the head body 30 with laser light. Here, the state of the electronic component 80 includes the shape of the electronic component 80, whether the electronic component 80 is sucked in the correct posture by the nozzle 32, and the like. The light source 38a is a light emitting element that outputs laser light. The light receiving element 38b has a position in the Z-axis direction, that is, a position having the same height, and is disposed at a position facing the light source 38a.

  Next, the control function of the device configuration of the electronic component mounting apparatus 10 will be described. As illustrated in FIG. 3, the electronic component mounting apparatus 10 includes a control unit 60, a head control unit 62, and a component supply control unit 64 as the control device 20. Each of the various control units is configured by a member having an arithmetic processing function and a storage function such as a CPU, a ROM, and a RAM. In this embodiment, a plurality of control units are used for convenience of explanation, but a single control unit may be used. Further, when the control function of the electronic component mounting apparatus 10 is a single control unit, it may be realized by one arithmetic device or a plurality of arithmetic devices.

  The control unit 60 is connected to each unit of the electronic component mounting apparatus 10 and executes a stored program based on the input operation signal and information detected by each unit of the electronic component mounting apparatus 10. Control the operation of each part. The control unit 60 controls, for example, the transport operation of the substrate 8, the drive operation of the head 15 by the XY movement mechanism 16, the shape detection operation by the laser recognition device 38, and the like. Further, the control unit 60 sends various instructions to the head control unit 62 as described above, and also controls the control operation by the head control unit 62. The control unit 60 also controls the control operation by the component supply control unit 64.

  The storage unit 61 is connected to the control unit 60 and has a storage function such as a ROM or a RAM. The storage unit 61 may be provided integrally with the control unit 60 or may be provided separately. The storage unit 61 stores data acquired from each unit by the control unit 60 and data calculated and calculated by the control unit 60. The storage unit 61 stores design drawing data, shapes of various electronic components, suction conditions, suction processing correction conditions, production programs, and the like. The storage unit 61 can also delete unnecessary data under the control of the control unit 60.

  The head control unit 62 is connected to the nozzle driving unit 34 and various sensors and the control unit 60 disposed on the head support 31, and controls the nozzle driving unit 34 to control the operation of the nozzle 32. The head control unit 62 performs the operation of sucking (holding) / releasing the electronic components of the nozzle 32 and the rotation of each nozzle 32 based on the operation instruction supplied from the control unit 60 and the detection results of various sensors (for example, distance sensors). Controls movement and movement in the Z-axis direction.

  The component supply control unit 64 controls the operation of supplying the electronic component 80 by the component supply units 14f and 14r. The component supply control unit 64 may be provided for each of the electronic component supply devices 90 and 90a or may control all the electronic component supply devices 90 and 90a. For example, the component supply control unit 64 controls an electronic component holding tape drawing operation (moving operation), lead cutting operation, and radial lead type electronic component holding operation by the electronic component supply device 90. In addition, when the component supply unit 14 includes the electronic component supply device 90a, the component supply control unit 64 controls the electronic component holding tape drawing operation (moving operation) by the electronic component supply device 90a. The component supply control unit 64 executes various operations based on instructions from the control unit 60. The component supply control unit 64 controls the movement of the electronic component holding tape or the electronic component holding tape by controlling the drawing operation of the electronic component holding tape or the electronic component holding tape.

  Here, in the above embodiment, the case where the suction nozzle is used as the nozzle mounted on the head has been described, but the present invention is not limited to this. FIG. 5 is an explanatory diagram illustrating an example of a nozzle. FIG. 5 is a diagram illustrating an example of a gripping nozzle (gripper nozzle). A nozzle 201 illustrated in FIG. 5 includes a fixed arm 202 and a movable arm 204. The nozzle 201 is fixed in a state in which the fulcrum 205 of the movable arm 204 is rotatable on the main body of the nozzle 201, and the movable arm 204 has a portion facing the fixed arm 202 with the fulcrum 205 as an axis close to the fixed arm 202. It can move in a direction away from the direction. The movable arm 204 is connected to a drive unit 206 on a side opposite to a portion of the main body of the nozzle 201 and a portion approaching or moving away from the fixed arm 202 via a fulcrum 205. The drive unit 206 is moved up and down by a drive source (air pressure) that drives the gripping nozzle. The movable arm 204 is separated from the fixed arm 202 when the drive unit 206 is lowered (state shown in FIG. 5), and approaches the fixed arm when the drive unit 206 is raised.

  The nozzle 201 can grip the electronic component 80 by reducing the distance between the fixed arm 202 and the movable arm 204 in a state where the electronic component 80 is between the fixed arm 202 and the movable arm 204.

  The gripping nozzle is not limited to the nozzle 201 and can have various shapes. The gripping nozzle can have various values for the distance between the fixed arm and the movable arm and the movable range. As described above, the gripping nozzle has different shapes of electronic components that can be gripped for each shape of the nozzle.

  The electronic component mounting apparatus 10 can appropriately hold the electronic component by selecting the type of nozzle that holds the electronic component according to the type of electronic component to be held. Specifically, one electronic component can be mounted by selecting whether to use a suction nozzle or a gripping nozzle according to the electronic component to be held, and switching which nozzle to use among each type of nozzle. More kinds of electronic components can be mounted on the device.

  Next, the lead processing apparatus 100 will be described with reference to FIGS. FIG. 6 is a schematic configuration diagram illustrating an example of a lead-type electronic component. FIG. 7 is a schematic configuration diagram showing an example of a processed lead-type electronic component. FIG. 8 is a top view showing a schematic configuration of the lead processing apparatus. FIG. 9 is a side view showing a schematic configuration of the lead processing apparatus. FIG. 10 is a side view illustrating a schematic configuration of the support base and the bent portion. FIG. 11 is a top view illustrating a schematic configuration of the support base and the bent portion. FIG. 12 is an explanatory diagram for explaining the function of the posture changing unit.

  First, a lead type electronic component processed by the lead processing apparatus 100 will be described with reference to FIGS. 6 and 7. As shown in FIG. 6, the lead-type electronic component (electronic component) 80 has a lead 84 fixed to a part of a main body 82. An electronic component 80 shown in FIG. 6 is an aluminum electrolytic capacitor, and two leads 84 are fixed to a main body 82. The electronic component 80 is sucked by the nozzle 32 and conveyed after the lead 84 is cut to a predetermined length by the electronic component supply device 90. The electronic component 80 sucked by the nozzle 32 is mounted on the substrate 8 by inserting the lead 84 into the hole formed in the substrate 8.

  The lead processing apparatus 100 processes the leads 84 of the electronic component 80 as shown in FIG. Specifically, like the electronic component 80a shown in FIG. 7, the lead 84a has a shape in which a first line segment 86 and a second line segment 88 that are 90 degrees different in angle are connected. That is, the second line segment 88, which is a portion of the lead 84a farther from the main body 82, is bent 90 degrees with respect to the first line segment 86, and the extension direction of the main body 82a and the extension of the lead 84 before processing are performed. The shape is inclined by 90 degrees with respect to the direction.

  The lead processing apparatus 100 can tilt the extension direction of the second line segment 88 including the end portion of the lead 84a inserted into the substrate by 90 degrees with respect to the extension direction of the main body 82 by bending the lead 84a. The main body 82 can be mounted on the substrate 8 in a state (state shown in FIG. 7) in a different direction from the electronic component 80 shown in FIG.

  Next, the configuration of the lead processing apparatus 100 will be described with reference to FIGS. The lead processing apparatus 100 includes a base 102, a support base 104, a bending part 106, and a posture changing part 108.

  The base 102 includes a base 110 that supports each of the support base 104, the bending portion 106, and the posture changing portion 108, and a component support portion 112 that supports an electronic component whose posture has been changed by the posture changing portion 108. The base 110 is fixed to the housing 11. Predetermined portions of the support base 104, the bent portion 106, and the posture changing portion 108 are fixed to the base 110. The component support portion 112 is fixed to the base portion 110 and supports the main body 82 of the electronic component 80a whose posture has been changed. The component support portion 112 is formed with unevenness along the side surface of the main body 82 (the surface on the lower side in the vertical direction of the electronic component whose posture has been changed). Thereby, the component support part 112 can support the electronic component 80a in a predetermined position.

  The support table 104 is a table that supports an electronic component (lead-type electronic component) 80 held by the nozzle 32. The support base 104 is connected to the base 102 in a rotatable state. The support base 104 includes a support base body 120 and a shaft 122 that connects the support base body 120 to the base 102. The support base body 120 has a support surface 120a that supports the electronic component 80, and side surfaces 120b that are respectively connected to both ends of the support surface and extend in a direction orthogonal to the support surface, and are on the base 102 side (lower side). Is a member having a U-shaped cross section opened. The support base body 120 has a plurality of openings 124 in which the leads 84 of the electronic component 80 are inserted on the support surface. The opening 124 is formed through the support surface 120a in the vertical direction. Further, the opening 124 is formed along the extending direction of the side surface (toward the X direction shown in FIG. 11), and one end portion is opened on the side opposite to the X direction (the direction opposite to the X direction). It is an elongated groove. A plurality of openings 124 are formed on the end surface of the support surface where the component support portion 112 is installed. Specifically, the openings 124 are arranged at the same interval as the interval between the leads of one electronic component. Further, the openings 124 are formed by the number of leads of a plurality of electronic components. The shaft 122 is fixed to the base 102 after passing through the side surface 120 b of the support base body 120. The shaft 122 supports the support base body 120 in a rotatable manner.

  Further, the support base 104 supports the electronic component in a state where the lead is inserted into the opening 124 of the support base body 120. As a result, in the support base 104, the support surface 120 a of the support base main body 120 comes into contact with the surface of the electronic component 80 on which the lead of the main body 82 is fixed, and supports the electronic component 80.

  The bent portion 106 is disposed in the vicinity of the support base 104. The bending portion 106 is a cylinder 130 that expands and contracts in one direction, a lead guide 134 that moves in one direction by the cylinder 130, contacts the lead 84 of the electronic component 80 supported by the support base 104, and applies a force for bending the lead 84. And having.

  The cylinder 130 has a cylinder body 131 and a piston rod 132 that is moved by the cylinder body 131. In the cylinder 130, the cylinder body 131 is fixed to the base 110, and the lead guide 134 is fixed to the piston rod 132. The lead guide 134 has a main body part 134a attached to the piston rod, and a bent part 134b that is folded back from the main body part and extends upward. The bending portion 134b has a guide groove 139 formed on the upper end side.

  As shown in FIG. 15, the bent portion 106 moves the lead guide 134 in the extending direction of the opening 124 by the forward and backward movement of the cylinder 130. As the lead guide 134 moves, the lead 84 comes into contact with the end surface 136 of the lead guide, and the lead 84 is bent along the bottom surface of the support 120 and guided to the guide groove 139.

  As shown in FIGS. 9 and 12, the posture changing unit 108 has a cylinder 140 and rotates the support base 104 around the shaft 122. The cylinder 140 moves the piston rod 140a in a predetermined direction.

  The cylinder 140 is provided with an engagement shaft 144 at the tip 142 of the piston rod 140a. The engagement shaft 144 is inserted into the elongated hole 145 of the support base 104. The posture changing unit 108 moves the position of the engagement shaft 144 in the elongated hole 145 by moving the tip 142 of the cylinder 140. The posture changing unit 108 rotates the support base 104 around the shaft 122 as shown in FIG. 12 by moving the position of the engagement shaft 144 in the elongated hole 145. Thereby, the posture changing unit 108 moves the support base 104 from the posture shown in FIG. 9 to the posture shown in FIG. 12 or vice versa.

  Next, the operation of the lead processing apparatus 100 will be described with reference to FIGS. 13 to 15 are explanatory views for explaining the operation of the lead machining apparatus. The support base 104 is rotated from the state of FIG. 15 to the state of FIG. 9 through the state of FIG. 12 by the forward and backward movement of the cylinder 140 of the posture changing unit 108. 9 shows a state in which the opening is oriented in the horizontal direction, and FIG. 15 shows a state in which the opening 124 is oriented in the vertical direction. The operation will be specifically described below.

  First, the lead type electronic component 80 a is sucked by the nozzle 32. Next, as shown in FIG. 15, the nozzle 32 is moved so that the electronic component 80 a is placed on the support base 104 so that the lead 84 is positioned on the back side (right side in the figure) of the opening 124 of the support base 104. .

  Next, as shown in FIG. 15, when the electronic component is mounted on the support base 104, the lead processing apparatus 100 holds the electronic component 80 from the support surface of the support base body 120 with the nozzle 32 of the head. In this state, the cylinder 130 of the bent portion 106 is advanced. As the cylinder 130 advances, the lead guide 134 moves along the bottom surface of the support base body 120. As the lead guide 134 moves, the lead 84 comes into contact with the end surface 136 of the lead guide, and the lead 84 is bent along the bottom surface of the support 120 and guided to the guide groove 139. The lead 84 is deformed along the guide groove 139 by being pushed by the end surface 136, and is bent as shown in FIG.

  In the lead processing apparatus 100, when the lead is bent by the bending portion 106, the support base body 120 is rotated by the posture changing portion 108, and the electronic component is rotated 90 degrees as shown in FIGS. Turn the part sideways.

  In this way, the electronic component mounting apparatus 10 bends the leads by the lead processing apparatus 100, holds the electronic components in the horizontal direction with the nozzle, and mounts them on the substrate. As a result, the electronic component mounting apparatus 10 mounts an electronic component supplied from the same component supply device, with the main body tilted 90 degrees with respect to the board and an electronic component with the main body not tilted with respect to the board. be able to. That is, the electronic component mounting apparatus 10 can be mounted with the main body of the electronic component in the horizontal direction. For example, in order to reduce the height of the substrate after mounting the electronic component, an aluminum electrolytic capacitor or the like is mounted on the horizontal plate. In contrast, electronic components can be mounted. Moreover, since it can process after hold | maintaining with a nozzle, even if it is an electronic component with which it is difficult to supply in the electronic component mounting apparatus in the state which bent the lead, a lead can be bent and mounted. As a result, the number and types of electronic components that can be mounted by the electronic component mounting apparatus can be increased.

  In addition, although the lead processing apparatus 100 of the present embodiment is bent at 90 degrees, it may be substantially 90 degrees, and an error of several degrees may occur. That is, the lead processing apparatus 100 may bend the second line segment of the lead at an angle of 85 degrees to 95 degrees with respect to the first line segment. The angle of bending is not particularly limited, and may be an angle that matches the direction of the main body of the electronic component when mounted. The angle at the time of bending can be adjusted by the shape of the guide groove 139.

  Further, the lead processing apparatus 100 simultaneously processes the leads of the plurality of electronic components by providing openings 124 for a plurality of electronic components and forming the lead guide 134 so as to cover a range where the plurality of openings 124 are formed. be able to. Note that the interval at which the openings 124 are formed is preferably the same as the arrangement interval of the nozzles 32 of the head. Thereby, a some electronic component can be hold | maintained simultaneously so that it may not move from a support surface with each nozzle. Moreover, it is preferable to form a plurality of openings in accordance with the interval between the leads of the electronic component that is expected to be processed. As a result, a plurality of types of electronic component leads can be processed with one support base body 120.

  16 to 18 are explanatory diagrams showing examples of the nozzles. The electronic component mounting apparatus 10 can suitably use the nozzle 232 shown in FIG. 16 when holding the electronic component 80a in a horizontal orientation by rotating the main body 82 by 90 degrees. The nozzle 232 has a nozzle tip 250 fixed to the nozzle base 240. The nozzle base portion 240 is a portion that is attached to the nozzle holding portion 33. The nozzle tip portion 250 is a portion that sucks and holds the electronic component 80a. In the nozzle 232, a passage 252 connected to the air flow path of the suction mechanism is formed in the nozzle base 240.

  The nozzle tip portion 250 is provided with an air flow path 254 connected to the passage 252 and an opening portion 255 opened on the end surface on the lower side in the vertical direction. The nozzle tip portion 250 is bent with respect to the extending direction of the nozzle base portion 240, that is, the direction orthogonal to the Z direction, and the direction orthogonal to the Z direction is the longitudinal direction. That is, the nozzle tip portion 250 has a shape extending along the extending direction of the surface on the upper side in the vertical direction of the electronic component that is turned sideways. In addition, the nozzle tip 250 has a shape in which the lower surface 256 in the vertical direction where the opening 255 is formed is along the upper surface in the vertical direction of the electronic component supported by the component support portion 112 of the lead processing apparatus 100. ing.

  The electronic component mounting apparatus 10 sucks and holds the electronic component 80a processed by the lead processing apparatus 100 with the nozzle 232, so that the surface 256 is along the main body of the electronic component 80a as shown in FIG. Suction can be performed from the opening surface 244. Thereby, the electronic component 80a can be suitably held. In addition, by forming the nozzle tip 250 of the nozzle 232 in a shape bent in one direction with respect to the nozzle base 240, when the electronic component 80 a is held by the nozzle 232, the lead 84 a is disposed around the nozzle base 240. State. Thereby, the lead 84a of the electronic component 80a can be inserted into the hole of the board with high probability. Thereby, an electronic component can be mounted on a substrate with higher probability.

  Here, in the present embodiment, the lead machining apparatus 100 is installed between the substrate 8 and the component supply unit 14 in the same manner as the VCS unit 17, the replacement nozzle holding mechanism 18, and the component storage unit 19, but the installation position is particularly limited. Not. The lead processing apparatus 100 only needs to be able to process the electronic component to be processed at a position that can be held by the nozzle 32 of the head 15. For example, the lead processing apparatus 100 may be disposed in the vicinity of the electronic component supply device 90 as a part of the component supply unit 14 or may be provided for each of the electronic component supply devices 90.

  Further, in the above embodiment, the cylinder 130 of the bent portion 106 is held with the nozzle 32 held so as not to move the electronic component 80 from the support surface of the support base body 120 (while maintaining the posture of the electronic component 80). The lead 84 was bent and moved forward. Instead, a member that holds the posture of the electronic component 80 may be provided in the lead processing apparatus itself. Further, the lead processing apparatus may have a structure in which the member that holds the electronic component 80 is held or supported from the side.

  8 substrate, 10 electronic component mounting apparatus, 11 housing, 12 substrate transport unit, 14, 14f, 14r component supply unit, 15 head, 16 XY moving mechanism, 17 VCS unit, 18 replacement nozzle holding mechanism, 19 component storage unit, 20 control device, 22 X-axis drive unit, 24 Y-axis drive unit, 30 head body, 31 head support, 32 nozzles, 34 nozzle drive unit, 34a Z-axis motor, 38 laser recognition device, 40 operation unit, 42 display unit , 60 control unit, 62 head control unit, 64 component supply control unit, 80 electronic component, 82 main body (electronic component main body), 84 lead, 90, 90a electronic component supply device, 96 support base, 100 lead processing device, 102 base , 104 Support base, 106 Bending part, 108 Posture changing part, 110 Base part, 112 Component support part, 120 Jidai body 122 shaft, 124 opening, 130 cylinders, 131 cylinder body, 132 piston rod 134 lead guide

Claims (4)

An electronic component mounting apparatus that holds a main body of a lead type electronic component and mounts by inserting a lead into an insertion hole of a board,
An electronic component supply device for supplying lead-type electronic components;
A head including a nozzle for holding a lead-type electronic component supplied from the electronic component supply device;
A head moving mechanism for moving the head;
The lead-type electronic component has a bent portion that can be brought into contact with the lead and is supported movably. The bent portion is moved to substantially maintain the posture of the lead-type electronic component. An electronic component mounting apparatus comprising: a lead processing apparatus that bends at right angles. The lead processing apparatus has a support base in which an opening into which the lead is inserted is formed and in contact with the main body,
The electronic component mounting apparatus according to claim 1, wherein the bent portion bends the lead of the lead-type electronic component held on the support base with an opening of the support base as a base point.   The lead processing apparatus includes an attitude changing unit that rotates the support base about an axis parallel to the surface of the substrate as a rotation center, and rotates the lead-type electronic component in contact with the support base. 2. The electronic component mounting apparatus according to 2.   4. The electronic component mounting apparatus according to claim 2, wherein the support base is formed with a plurality of openings into which the leads are inserted, and can simultaneously support the plurality of lead-type electronic components. 5.

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