JP6144767B2 - Component mounter - Google Patents

Description

  The present invention relates to a component mounting machine including a component disposal unit that discards or collects components adsorbed by an adsorption nozzle without mounting them on a circuit board.

  This type of component mounting machine, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-374100), images a component sucked by a suction nozzle with a camera, and determines the suction posture and shape of the component. Recognize the image to determine whether the component is not mountable (abnormality such as suction posture or component shape). If it is determined that mounting is not possible, the component is disposed in the component disposal unit provided in the component mounter. I try to discard it. The conventional parts disposal unit is arranged either on the side of the feeder that supplies the parts, or on the side of the camera that captures the part adsorbed by the suction nozzle from below. Like to do.

JP 2002-374100 A

  However, in the configuration in which the component disposal unit is arranged on the side of the feeder, the feeder placement space in the component mounter is narrowed by the component disposal unit, the number of feeders that can be mounted is reduced, the number of feeder replacements and component replenishment There is a drawback that the number of times increases, leading to a decrease in productivity. On the other hand, in the configuration in which the component disposal unit is disposed on the side of the camera, the component disposal unit occupies the empty space on the side of the camera in the component mounter, and the additional unit cannot be disposed on the side of the camera. is there.

  Therefore, the problem to be solved by the present invention is to provide a component mounting machine capable of arranging a component disposal unit while securing a feeder arrangement space and an additional unit arrangement space in the component mounting machine.

  In order to solve the above problems, the present invention provides a feeder for supplying components, a suction nozzle for sucking the components supplied by the feeder and mounting them on a circuit board, and a component sucked by the suction nozzles on the circuit board. In a component mounter including a component disposal unit that discards or collects without mounting, the component disposal unit is disposed above the feeder placement space so as to leave a space above the component suction position of the feeder. It is characterized by this.

  In this configuration, since the component disposal unit is arranged above the feeder arrangement space, the component disposal unit is located above the feeder arrangement space while ensuring the feeder arrangement space and the additional unit arrangement space in the component mounting machine. Can be arranged three-dimensionally (three-dimensionally). In addition, if the component disposal unit is arranged so as to be spaced above the component adsorption position of the feeder as in the present invention, the component adsorption operation space of the adsorption nozzle can be secured above the component adsorption position of the feeder. It is possible to avoid the suction nozzle from interfering with the component disposal unit during the suction operation.

  In this case, focusing on the fact that the component disposal unit is located above the feeder arrangement space, the component disposal unit may be configured to function as a cover for preventing the feeder from lifting. In this way, it is not necessary to provide a dedicated cover for preventing the feeder from being lifted, and the component disposal unit can be disposed using the conventional space for arranging the cover for preventing the feeder from being lifted.

  As the component disposal unit, a conveyor may be used to convey the component from the component disposal position where the component released from the suction nozzle is placed to the component collection position outside the component mounting machine. In this way, even when the component mounter is in operation, the operator can recover the components on the conveyor outside the component mounter without stopping the component mounter, and the component recovery operation is easy.

  In this case, it is preferable to control the feeding amount of the conveyor by the control means in accordance with the size of the component so that the component placed on the conveyor does not overlap with the previously placed component. The reason for this is that if the parts are stacked randomly on the conveyor, the parts may be damaged or lead bending of the parts may occur, making it difficult to reuse the collected parts. This is because there are cases.

  Furthermore, the control means controls the position where the suction nozzle releases the parts so that a plurality of parts are placed on the conveyor in the width direction of the conveyor, and the parts are arranged in the width direction of the conveyor. Each time the placement for one row is completed, the conveyor may be fed by the feed amount set according to the size of the component, and the parts on the conveyor may be fed by the feed amount. If it does in this way, the whole space within the width on a conveyor can be used efficiently, and more parts can be mounted on a conveyor.

  The control means may control the placement position of the parts so that the parts are placed in the same arrangement as the feeder on the conveyor. In this case, since the components placed on the conveyor are aligned for each component type, the operator can easily identify the components that can be reused.

  The component disposal unit is not limited to a conveyor, and may be a component disposal tray for placing components released from the suction nozzle. In this case, the component disposal tray is preferably provided so as to be slidable between a component disposal position for placing the component released from the suction nozzle and a component recovery position withdrawn to the outside of the component mounting machine. In this way, when collecting the parts on the parts disposal tray, the parts disposal tray can be pulled out to the outside of the parts mounting machine, so that the parts on the parts disposal tray can be collected outside the parts mounting machine. It is easy to collect the parts on the tray.

FIG. 1 is a perspective view of the main part of the component mounter according to the first embodiment of the present invention as viewed obliquely from above. FIG. 2 is a perspective view of the conveyor as viewed obliquely from above. FIG. 3 is a block diagram showing the configuration of the control system of the component mounter. FIG. 4 is a perspective view of the main part of the component mounter according to the second embodiment of the present invention as viewed obliquely from above.

  Hereinafter, two Examples 1 and 2 which embody the form for implementing this invention are demonstrated.

A first embodiment of the present invention will be described with reference to FIGS.
First, the configuration of the component mounting machine will be described with reference to FIG.

  A front cover 11 is provided on the front side (left side in FIG. 1) of the component mounter so as to be openable and closable. A component disposal conveyor 20 (component disposal unit), which will be described later, and a feeder 12 that supplies components are arranged in a vertical relationship in a portion below the front cover 11 of the component mounter. The feeder 12 may be a tape feeder, a bulk feeder, a stick feeder, a tray feeder, or the like. On a feeder set base (not shown) on which the feeder 12 is placed, a device other than the feeder 12 (for example, a transfer device for transferring flux, solder, adhesive, etc. to terminals on the lower surface of the component) can be placed. ing.

  The component mounting machine is provided with a mounting head 13 that moves in the XYZ directions by a head moving device 25 (see FIG. 3), and a suction nozzle 14 (see FIG. 2) is held on the mounting head 13 so as to be automatically replaceable downward. The components supplied by the feeder 12 are attracted to the suction nozzle 14 at a component supply position near the tip of the feeder 12 and mounted on the circuit board 15. Further, the component mounting machine is provided with a board transfer device 26 (see FIG. 3) for carrying in / out the circuit board 15 and a board clamping device 16 for clamping the circuit board 15 at a predetermined stop position.

  A tape discharge duct 17 for discharging a used component supply tape (carrier tape) discharged from the feeder 12 is provided in the vicinity of the feeder 12 in the component mounting machine. The tape discharge duct 17 and the substrate clamping device 16 are provided. In between, a component recognition camera 18 that images the component sucked by the suction nozzle 14 from below is provided upward. On the left side of the camera 18 (upper side in FIG. 1), a nozzle set base 19 for setting a replacement suction nozzle is provided. An additional unit arrangement area 24 for arranging additional units (not shown) is provided on the right side (lower side in FIG. 1) of the camera 18.

  On the other hand, above the space where the feeder 12 is disposed, the component disposal conveyor 20 is disposed so as to be spaced above the component suction position of the feeder 12. The component disposal conveyor 20 is a conveyor that discards or collects components adsorbed by the suction nozzle 14 without mounting them on the circuit board 15, and one end (component disposal position) of the component disposal conveyor 20 is a component of the feeder 12. Located near the suction position, the other end (part collection position) of the part disposal conveyor 20 protrudes to the outside of the front cover 11. The component released from the suction nozzle 14 is placed at the component disposal position of the component disposal conveyor 20, and the component is gradually conveyed by the component disposal conveyor 20 to the component collection position outside the component mounting machine. The component disposal conveyor 20 is configured to function as a cover for preventing the feeder 12 on the feeder set base from being lifted.

  The component disposal conveyor 20 is provided with a motor 21 serving as a driving source and a rotation detection sensor 22 that detects a feed amount of the component disposal conveyor 20 (or a rotation amount of the motor 21), and an output signal of the rotation detection sensor 22 The feed operation of the component disposal conveyor 20 is controlled while detecting the feed amount of the component disposal conveyor 20 based on the above.

  As shown in FIG. 3, the control device 31 for controlling the operation of the component mounter includes an input device 32 such as a keyboard, a mouse, and a touch panel, a display device 33 such as an LCD, EL, and CRT, and a component mounter and components. A storage device 34 storing various control programs and data necessary for controlling the waste conveyor 20 is connected.

  The control device 31 passes the component above the camera 18 while moving the component adsorbed by the adsorption nozzle 14 above the circuit board 15, images the component with the camera 18, and acquires the image data. The captured image is processed and image recognition is performed on the suction orientation and shape of the component, and it is determined whether or not the image-recognized component is not mountable (the suction posture or component shape is abnormal). If determined, the component is moved from the suction nozzle 14 to the component disposal position of the component disposal conveyor 20 without being mounted on the circuit board 15, and the component is released from the suction nozzle 14. Place in the disposal position.

  At this time, the control device 31 efficiently uses the entire space within the width of the component disposal conveyor 20 and places more components on the component disposal conveyor 20 in order to place more components on the component disposal conveyor 20. The position at which the suction nozzle 14 releases the parts is controlled so that a plurality of parts are placed in the width direction of the waste conveyor 20 with a space therebetween, and the parts are placed in one row in the width direction of the parts waste conveyor 20. Each time the process is completed, the motor 21 of the component disposal conveyor 20 is fed by a feed amount set in accordance with the size of the component so that the component placed on the component disposal conveyor 20 does not overlap the previously placed component. Then, the parts on the parts disposal conveyor 20 are fed by the feed amount. The reason for this is that if the parts are stacked randomly on the parts disposal conveyor 20, the parts may be damaged or the lead of the parts may be bent. This is because it may be difficult.

  The control device 31 controls the feeding operation of the component disposal conveyor 20 while detecting the feeding amount of the component disposal conveyor 20 by taking the output signal of the rotation detection sensor 22 during the feeding operation of the component disposal conveyor 20. The control device 31 issues a “parts collection instruction” alarm by the display or voice of the display device 33 when the top part placed on the parts disposal conveyor 20 approaches the part collection position outside the part mounter. The operator is urged to collect the parts on the parts disposal conveyor 20. Thereby, before the components are fully loaded on the component disposal conveyor 20, an alarm can be issued to prompt the operator to collect the components on the component disposal conveyor 20.

  The component mounting machine is provided with an operation switch (not shown) for manually operating the component disposal conveyor 20 so that the operator can operate the feeding operation of the component disposal conveyor 20 by operating the operation switch. It has become.

  In the first embodiment described above, since the component disposal conveyor 20 is arranged above the arrangement space of the feeder 12, the feeder 12 is secured while securing the arrangement space of the feeder 12 and the additional unit arrangement area 19 in the component mounting machine. The component disposal conveyor 20 can be arranged three-dimensionally (three-dimensionally) above the arrangement space. Further, as in the first embodiment, if the component disposal conveyor 20 is arranged so as to be spaced above the component suction position of the feeder 12, a component suction operation space of the suction nozzle 14 is secured above the component suction position of the feeder 12. It is possible to avoid the suction nozzle 14 from interfering with the component disposal conveyor 20 during the component suction operation.

  Moreover, in the first embodiment, focusing on the fact that the component disposal conveyor 20 is positioned above the space where the feeder 12 is disposed, the component disposal conveyor 20 is configured to function also as a cover for preventing the feeder 12 from rising. Therefore, it is not necessary to provide a dedicated cover for preventing the feeder 12 from being lifted, and the component disposal conveyor 20 can be disposed by using the conventional space for arranging the cover for preventing the feeder 12 from being lifted.

  Furthermore, in the first embodiment, the component disposal conveyor 20 is disposed so as to convey the component from the component disposal position where the component released from the suction nozzle 14 is placed to the component collection position outside the component mounting machine. Therefore, even when the component mounter is in operation, the operator can recover the components on the component disposal conveyor 20 outside the component mounter without stopping the component mounter, and the component recovery operation is easy.

  Next, Embodiment 2 of the present invention will be described with reference to FIG. However, substantially the same parts as those in the first embodiment are denoted by the same reference numerals, the description thereof is simplified or omitted, and different parts are mainly described.

  In the first embodiment, the component disposal conveyor 20 is used as the component disposal unit. However, in the present embodiment 2 shown in FIG. 4, the component disposal tray 36 is used as the component disposal unit. The component disposal tray 36 is slidably provided between a component disposal position on which a component released from the suction nozzle 14 is placed by a slide rail 37 provided on the component mounting machine and a component recovery position withdrawn to the outside of the component mounting machine. It has been. In a state where the component disposal tray 36 is pushed into the component disposal position inside the component mounter, the tip of the component disposal tray 36 does not reach the component adsorption position of the feeder 12 and the upper portion of the component adsorption position of the feeder 12 is vacated. Yes. Further, when the component disposal tray 36 is pushed into the component disposal position inside the component mounter, the component disposal tray 36 also functions as a cover for preventing the feeder 12 from lifting up on the feeder set base.

  A handle portion 38 is provided at the end of the component disposal tray 36 on the drawer side. As shown by a solid line in FIG. 4, even if the component disposal tray 36 is pushed into the component disposal position inside the component mounter, The part 38 is located outside the front cover 11 (outside the component mounter).

  The control device 31 of the component mounter efficiently uses the entire space on the component disposal tray 36 and places the components vertically on the component disposal tray 36 in order to place more components on the component disposal tray 36. Control the position at which the suction nozzle 14 releases the parts so that they are placed with a close spacing in the horizontal direction. When the parts placed on the parts disposal tray 36 are almost full, the control device 31 issues a “parts collection instruction” alarm by display or sound on the display device 33 and informs the operator on the parts disposal tray 36. Prompt to collect parts.

  When collecting the components on the component disposal tray 36, the operator grasps the handle portion 38 of the component disposal tray 36 and moves the component disposal tray 36 to the outside of the component mounting machine as shown by a two-dot chain line in FIG. After pulling out to the component collection position, the operator collects the components on the component disposal tray 36.

  The component mounter is provided with a tray moving mechanism (not shown) that automatically moves the component disposal tray 36 to automatically move the component disposal tray 36 between the component disposal position and the component collection position. You may do it.

In the second embodiment described above, substantially the same effect as that of the first embodiment can be obtained.
The present invention is not limited to the first and second embodiments. For example, in the additional unit arrangement area 19, a parts disposal box that accommodates parts to be discarded without being reused (defective parts, inexpensive parts, etc.) is installed. In addition, only the parts to be reused (expensive parts, normal parts, etc.) may be placed on the parts disposal conveyor 20 or the parts disposal tray 36, or the parts disposal unit (parts disposal conveyor 20, The width of the component disposal tray 36) may be reduced, or the components can be placed on the component disposal conveyor 20 or the component disposal tray 36 in the same arrangement as the feeder 12, and can be reused by the operator. It goes without saying that various modifications can be made without departing from the spirit of the invention, such as making it possible to easily identify parts.

  DESCRIPTION OF SYMBOLS 11 ... Front cover, 12 ... Feeder, 13 ... Mounting head, 14 ... Suction nozzle, 15 ... Circuit board, 18 ... Camera, 20 ... Component disposal conveyor (component disposal unit), 21 ... Motor, 22 ... Rotation detection sensor, 31 ... Control device 33 ... Display device 36 ... Parts disposal tray (parts disposal unit) 37 ... Slide rail 38 ... Handle part

Claims (7)

A feeder for supplying a component; a suction nozzle for sucking and mounting the component supplied by the feeder on a circuit board; and a component disposal unit for discarding or collecting the component sucked by the suction nozzle without mounting on the circuit board In the component mounter equipped with
The component disposal unit is disposed above the feeder placement space so as to leave a space above the component suction position of the feeder.   The component mounter according to claim 1, wherein the component disposal unit also functions as a cover for preventing the feeder from lifting.   The said component disposal unit is a conveyor which conveys this component from the component disposal position which mounts the component released from the said suction nozzle to the components collection position of the outer side of a component mounting machine. The component mounting machine described.   4. The apparatus according to claim 3, further comprising control means for controlling a feeding amount of the conveyor according to a size of the component so that the component placed on the conveyor does not overlap with the previously placed component. The component mounting machine described.   The control means controls the position at which the suction nozzle releases the parts so that a plurality of parts are placed on the conveyor in the width direction of the conveyor at intervals, and one part is placed in the width direction of the conveyor. 5. The conveyor according to claim 4, wherein the conveyor is fed by a feed amount set in accordance with the size of the component every time the placement of the row is completed, and the components on the conveyor are fed by the feed amount. Component mounting machine.   3. The component mounting machine according to claim 1, wherein the component disposal unit is a component disposal tray on which a component released from the suction nozzle is placed.   The component disposal tray is provided so as to be slidable between a component disposal position on which a component released from the suction nozzle is placed and a component recovery position withdrawn to the outside of the component mounter. 6. The component mounting machine according to 6.

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