JP2007273811A - Electronic component mounting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To keep the operation rate of a device by avoiding emergency stop due to continuous suction fault of continuing empty housing parts at joint or in joint zone. <P>SOLUTION: A CPU 110 judges whether or not there is an electronic component in a housing part Cc according to the recognition processing result of images picked up by a substrate recognition camera 17. When there is no electronic component, continuous suction fault monitoring function is canceled if a housing tape at component pick-up position is in the splicing joint part zone, and mounting operation of electronic component to the substrate is continued. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, a plurality of component supply units for supplying electronic components in the storage tape to the component extraction position are arranged side by side on the feeder base, and the suction nozzle takes out the electronic components supplied from the component supply unit and The present invention relates to an electronic component mounting apparatus to be mounted on a machine.

In this type of electronic component mounting device, particularly a high-speed gantry-type mounting device, the component supply unit is fixed and does not move. Therefore, so-called splicing replenishment in which storage tapes are connected and replenished during automatic operation is employed. The number of users is increasing rapidly. A method for connecting the storage tapes of this type is disclosed in, for example, Patent Document 1, but a technique for simplifying the connecting work has been proposed.
JP-A-5-338618

  However, when the storage tapes are connected to each other by a connecting tape due to a lack of electronic components, a plurality of electronic components fall from the storage portion at the connection portion, that is, the seam during the connection work, and a plurality of continuous empty storage portions are generated. To do. In addition, when the connecting operator connects a plurality of empty storage portions at the rear end portion of the old storage tape and the front end portion of the new storage tape, the joint includes a seam and a plurality of storage portions before and after the seam. There is a possibility that a plurality of continuous empty storage parts may be generated in the part zone. Then, when this empty storage part is sent to the electronic component take-out part, the suction nozzle also moves up and down with respect to a plurality of empty storage parts, and the electronic component is picked up and taken out from the storage part The so-called suction operation is repeated, and when the electronic component is not continuously sucked by the suction nozzle, that is, when a continuous suction abnormality occurs, the electronic component mounting device stops abnormally, resulting in a reduction in the operating rate of the device. Problem occurs.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to avoid an abnormal stop due to a continuous adsorption abnormality and maintain the operating rate of the apparatus when a plurality of continuous empty storage portions occur in a seam or a seam zone.

  Therefore, according to the first aspect of the present invention, a plurality of component supply units that supply the electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side and supplied from the component supply unit. In the electronic component mounting apparatus in which the suction nozzle sucks the mounted electronic component at the take-out unit and mounts the electronic component on the printed circuit board, presence / absence detecting means for detecting the presence / absence of the component taken out by the suction nozzle at the take-out unit; A joint detection means for detecting a joint provided for each of the component supply units to connect the storage tapes, and when the presence / absence detection means detects the absence of an electronic component continuously for a set number of times, a suction operation and a mounting operation The seam is detected by the seam detection device when the presence / absence detecting means detects that there is no part, When the serial seam has reached the extraction unit is characterized in that a control means for controlling sucking operation and mounting operation of the electronic component so as not to stop.

  In the second invention, a plurality of component supply units that supply electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side and supplied from the component supply unit. In an electronic component mounting apparatus in which an electronic component is picked up by a suction nozzle at a pick-up unit and mounted on a printed circuit board, presence / absence detecting means for detecting the presence / absence of a component picked up by the pick-up nozzle in the pick-up unit, When there is no electronic component continuously as a result of detection by the detection means, a counter that counts the number of times that there is no component, a seam detection means that detects a seam that is provided for each of the component supply units and connects the storage tapes, When the count of the counter reaches the set number of times, the suction operation and the mounting operation are stopped and the presence / absence detecting means has no parts. And a control means for controlling so that counting by the counter is not performed when the seam is detected by the seam detection device and the seam has reached the take-out portion. Features.

  According to a third aspect of the present invention, a plurality of component supply units that supply the electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged in parallel, and supplied from the component supply unit. In an electronic component mounting apparatus in which an electronic nozzle is picked up by a pickup nozzle and mounted on a printed circuit board, presence / absence detecting means for detecting the presence / absence of the component taken out by the pickup nozzle in the pickup portion, and the component When the detection device that is provided for each supply unit and detects the joint where the storage tapes are connected to each other and the presence / absence detecting means detects the absence of the electronic component continuously for the set number of times, the count of the counter is set to the set number of times. When reaching, the suction operation and the mounting operation are stopped, and when the presence / absence detecting means detects that there is no part, the joint detection is performed. Control means for controlling so that the electronic component suction operation and mounting operation are not stopped when the joint is detected by placement and the joint zone including the joint and the storage portion before and after the joint reaches the take-out portion It is characterized by that.

  According to a fourth aspect of the present invention, a plurality of component supply units that supply the electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side and supplied from the component supply unit. In an electronic component mounting apparatus in which an electronic component is picked up by a suction nozzle at a pick-up part and mounted on a printed circuit board, presence / absence detecting means for detecting the presence / absence of a part picked up by the pick-up nozzle in the pick-up part, and this presence / absence A counter that counts the number of times that there is no component when there is no electronic component as a result of detection by the detection means; a detection device that detects a joint that is provided for each of the component supply units and connects the storage tapes; and the counter When the count reaches the set number of times, the suction operation and the mounting operation are stopped, and the presence / absence detecting means confirms that there are no parts. When the seam is detected, the seam is detected by the seam detection device, and when the seam zone including the seam and the storage part before and after the seam reaches the take-out part, the counter is not counted. And a control means for providing the control means.

  According to a fifth aspect of the present invention, in the electronic component mounting apparatus according to the third or fourth aspect, the storage unit according to a recognition processing result of the recognition processing device when the joint zone is located at the take-out unit. The control device controls the suction operation and the mounting operation to be stopped when the count by the counter reaches a set number of times.

  Even when the storage tapes are connected to each other by connecting tapes, the operation of the apparatus is avoided by avoiding abnormal stop due to continuous adsorption abnormalities due to the continuous empty storage part at the connection part, that is, the joint or the joint part zone. The rate can be maintained.

  Hereinafter, an electronic component mounting apparatus including a component supply apparatus and an electronic component mounting apparatus main body will be described with reference to the accompanying drawings. This electronic component mounting apparatus is a so-called multifunctional chip mounter, and various electronic components can be mounted on the printed circuit board P.

  FIG. 1 is a plan view of an electronic component mounting apparatus. An electronic component mounting apparatus main body 1 includes a machine base 2, a conveyor unit 3 extending in the left-right direction at the center of the machine base 2, and a front of the machine base 2. Two sets of component mounting portions 4 and 4 and two sets of component supply portions 5 and 5 are provided respectively at a portion (lower side in the drawing) and a rear portion (upper side in the drawing). Then, a plurality of component supply units 6 that are electronic component supply devices are detachably incorporated in the component supply unit 5 to constitute an electronic component mounting device.

  The conveyor unit 3 includes a central set table 8, a left supply conveyor 9, and a right discharge conveyor 10. The printed circuit board P is supplied from the supply conveyor 9 to the set table 8, and is set stationary and at a predetermined height in order to receive the mounting of the electronic components by the set table 8. Then, the printed circuit board P on which the mounting of the electronic components is completed is discharged from the set table 8 to the downstream device via the discharge conveyor 10.

  Each component mounting unit 4 is provided with an XY stage (beam) 12 on which a head unit 13 is movably mounted, a component recognition camera 14 (presence / absence detection means) as a first recognition camera, and a nozzle stocker 15. Is arranged. The head unit 13 has two mounting heads 16 and 16 for sucking and mounting electronic components, and a first unit for recognizing the position of the printed circuit board P and the status of an electronic component storage portion of a storage tape described later. The board recognition camera 17 which is the second recognition camera is mounted. Normally, the XY stages 12 and 12 of both the component mounting parts 4 and 4 are alternately operated. Further, as the presence / absence detection means, for example, a line sensor that detects the suction state of the electronic component after the electronic component is sucked by the suction nozzle instead of the component recognition camera 14 may be used.

  In each XY stage 12, the beam 12A is moved in the Y direction by the Y axis drive motor 12Y, and the head unit 13 is moved in the X direction by the X axis drive motor 12X. As a result, the head unit 13 is moved in the XY direction. It becomes.

  As will be described later, each component supply unit 5 includes a number of component supply units 6 on a feeder base 19 that are detachable side by side. Each component supply unit 6 has a storage tape C (described later) in which a large number of electronic components are stored in each storage portion Cc at regular intervals. By intermittently feeding the storage tape C, the component supply unit 6 One electronic component is supplied from the tip to the component mounting portion 4 one by one.

  The operation based on the mounting data stored in the storage unit of the electronic component mounting apparatus main body 1 is performed by first driving the XY stage 12 so that the head unit 13 faces the component supply unit 6 and then the suction nozzle provided on the mounting head 16. A desired electronic component is picked up (taken out) by lowering 18. Subsequently, after the mounting head 16 is raised, the XY stage 12 is driven to move the electronic component to a position directly above the component recognition camera 14 (presence / absence detecting means), and the suction posture and the positional deviation with respect to the suction nozzle 18 are recognized. To do. Next, after the mounting head 16 is moved to the position of the board P on the set table 8 and the position of the board P is recognized by the board recognition camera 17, based on the recognition result by the component recognition camera 14 and the board recognition camera 17, The X-axis drive motor 12X, the Y-axis motor 12Y of the XY stage 12 and the θ-axis drive motor 18A of the suction nozzle 18 are corrected and moved to mount electronic components on the printed circuit board P.

  Next, the component supply unit 6 will be described with reference to FIGS. The component supply unit 6 includes a unit frame 21, a storage tape reel (not shown) that is rotatably mounted on the unit frame 21, and a storage tape C that is sequentially wound in a state of being wound around the storage tape reel. The tape feeding mechanism (tape feeding device) 22 intermittently feeds to the pickup position (suction take-out position), and a cover tape peeling mechanism 20 to be described later for peeling the cover tape Ca of the storage tape C before the pickup position. The

  The storage tape C fed out from the storage tape reel is fed to the pickup position so as to dive under the suppressor 23 disposed in the tape path before the pickup position. The suppressor 23 has an opening for pickup. The suppressor 23 is formed with a slit, and the cover tape Ca of the storage tape C is peeled off from the slit and stored in the storage portion (storage recess) 26. That is, the electronic component mounted on the storage tape C is sent to the pickup opening in a state where the cover tape Ca is peeled off, and is picked up by the suction nozzle 18.

  Next, the tape feeding mechanism 22 will be described with reference to FIG. The tape feeding mechanism 22 includes a servomotor 28 that is a drive source capable of forward and reverse rotation having a gear 27 on its output shaft, and a gear 30 in which a timing belt 29 is stretched between the gear 27 at one end. A feed shaft formed on the storage tape C and having a rotating shaft 33 rotatably supported by a support 31 via a bearing 32 and a worm wheel 35 meshing with a worm gear 34 provided at an intermediate portion of the rotating shaft 33. The sprocket 36 is configured to mesh with the hole Cb and send it. The worm wheel 35 and the support shaft 37 of the sprocket 36 pass through the intermediate partition of the unit frame 21.

  Therefore, when the servo motor 28 is driven and rotated in order to supply the electronic components in the storage tape C in the component supply unit 6, the gear 27 and the gear 30 are rotated via the timing belt 29, thereby rotating the rotating shaft 33. The sprocket 36 rotates only by a predetermined angle in the feed direction via the worm gear 34 and the worm wheel 35, whereby the storage tape C is intermittently fed through the feed hole Cb.

  Next, the cover tape peeling mechanism 20 will be described. The cover tape peeling mechanism 20 includes a drive motor 42 provided with a worm gear 41 on its output shaft, a gear 45 surrounding the gear 45 and a gear 43 that meshes with the gear 41, and a support shaft fixed to a support body 44 fixed to the unit frame 21. A first rotating body 46 rotatably supported through 46A, and a support body that includes a gear 47 that meshes with the contact portion 51 and the gear 45 around the first rotating body 46, and is fixed to the unit frame 21 via the mounting body 48. The unit frame 21 is provided with a second rotating body 50 rotatably supported by a support shaft 49A on a support shaft 49 and an abutting portion 52 that is urged by and abutted by the abutting portion 51 and a spring 55 around the second rotating body 50. A third rotating body 56 rotatably supported via a support shaft 56A by a mounting body 54 that can swing via the support shaft 53, a roller 57 that guides the cover tape Ca, and a unit frame 21 is provided with a roller 60 for guiding the cover tape Ca guided by the roller 57 at the end of a mounting body 59 that can swing through a support shaft 58 and is urged by a spring 61 to be tensioned to the cover tape Ca. It is comprised from the tension application body 62 for adding. Reference numeral 63 denotes a stopper for restricting the swing of the mounting body 59.

  Therefore, when the cover tape Ca is peeled off, when the drive motor 42 is driven, the first rotating body 46 rotates via the gear 41 and the gear 43, and when the first rotating body 46 rotates, the gear 45 is rotated. And the second rotating body 50 rotates via the gear 47, and when the second rotating body 50 rotates, the contact portion 52 and the contact portion 51 urged by the spring 55 sandwich the cover tape Ca. In this state, the third rotating body 56 rotates, and the cover tape Ca of the storage tape C is peeled off by one pitch from the slit of the suppressor 23, and is provided at the end of the component supply unit 6 without being loosened. Stored in the storage unit 26.

  The suppressor 23 has a substantially L-shaped cross section from a vertical piece serving as a support portion and a horizontal piece that holds the storage tape C engaged with the teeth of the sprocket 36 so that the feed hole Cb is not removed. 21, a vertical piece is supported on the inside so as to be rotatable about a support shaft at the rear end portion, and a locking body (not shown) urged by a spring in a locking direction to the front end portion of the horizontal piece. ) Is provided with a vertical locking piece having a locking hole that can be locked.

  In addition, in a state where the suppressor 23 serving as a peeling fulcrum of the cover tape Ca of the storage tape C is rotated upward, the loading that communicates with the tape passage 64 formed in the unit frame 21 from the side of the component supply unit 6. The storage tape C can be loaded into the component supply unit 6 through the opening 65 for use. Reference numeral 66 denotes a prevention member for preventing the storage tape C loaded in the component supply unit 6 from being detached from the loading opening 65, and is provided in the vicinity of the rear end portion of the horizontal passage of the tape passage 64, in the middle portion, or in an oblique passage. In the vicinity of the upper end portion of the tube or at the boundary between the horizontal passage and the oblique passage (see FIG. 2).

  Reference numeral 68 denotes a label attached to the rear surface of the handle 77 of the component supply unit 6, and a bar code indicating the serial number of the component supply unit 6 is written on the label 68. Accordingly, the barcode can be read by a barcode scanner (not shown) even when the plurality of component supply units 6 are attached to the electronic component mounting apparatus main body 1 in close proximity to each other.

  Next, a large number of component supply units 6 are detachably arranged in parallel on the feeder base 19, and the configuration thereof will be described. First, as shown in FIGS. 1, 4, and 5, a pair of guide members 70 having parallel side surfaces 70 </ b> A for guiding each component supply unit 6 are provided on the upper surface of the feeder base 19 via a plurality of mounting pins 101. Provided on the bottom surface of the component supply unit 6 is a guided member 71 having a U-shaped cross section in which a concave portion 71A is formed on each outer surface to which the pair of guide members 70 are fitted and guided. Yes. Further, the front side end portions of the pair of guide members 70 are inclined upward, and opposite side surfaces 70B are formed so that the distance between them becomes farther toward the front.

  A pair of guide members 70 are provided corresponding to the component supply unit 6. However, since a plurality of component supply units 6 are arranged side by side, the guide member 70 is a guide member 70 of the adjacent component supply unit 6. Also used as

  Then, when the guided member 71 is guided by the pair of guide members 70 and moved to attach the component supply unit 6 while sliding the guided member 71 on the feeder base 19. A front-rear restricting member 72 is provided at the end of the feeder base 19 on the depth side to restrict the position of the component supply unit 6 in the front-rear direction by contacting the guided member 71.

  Further, on the feeder base 19 between the side surfaces 70A of the front portion of the guide member 70, a cylindrical shape that fits in the restriction groove 71B of the guided member 71 and restricts the position of the component supply unit 6 in the left-right direction. Rear left and right restricting pins 73 are provided. Further, a cylindrical front left / right restriction pin 74 that fits in a restriction groove 71B of the guided member 71 in the vicinity of the front / rear restriction member 72 where the guide member 70 is not provided and restricts the position in the left / right direction. Is formed.

  However, the regulation groove 71B of the guided member 71 is engaged with the front left / right regulation pin 74 having a larger diameter than the rear left / right regulation pin 73 and regulates the position of the component supply unit 6 in the left / right direction. When the component supply unit 6 is mounted and fixed on the feeder base 19, the width of the restriction groove 71 </ b> B is restricted in order to restrict the position in the left-right direction. It is formed substantially the same as the diameter of the pin 74, and is formed substantially the same as the diameter of the rear left / right regulating pin 73 at a position where the rear left / right regulating pin 73 is fitted.

  Further, a handle 77 is formed at the rear part of the component supply unit 6, and a lock release lever 79 that is rotatable about the support shaft 78 is provided. The lock release member 81 provided with the abutting portion 81A and rotatably supported with the support shaft 80 as a fulcrum, and the lock release lever 79 are connected to the connection plate 84 rotatably supported by the support shafts 82 and 83. Are connected through. The lock release member 81 is urged to rotate counterclockwise by a spring 85, but counterclockwise rotation is restricted by a restriction pin 86.

  A coil spring 90 is stretched between the attachment member 87 of the feeder base 19 and a locking member 89 that can be rotated with the support shaft 88 as a fulcrum, and is locked with the first lock member 92 provided in the component supply unit 6. A locking member 89 having a possible first locking portion 89A is urged to rotate clockwise. The first lock member 92 includes a roller 92A and a support member 92B on which the roller 92A is provided. A release device that releases the lock between the first lock portion 89A of the lock member 89 and the roller 92A of the first lock member 92 is configured from the lock release lever 79, the lock release member 81, the connecting plate 84, and the like. Is done.

  When the component supply unit 6 is attached to the feeder base 19, the operator holds the handle 77 and moves the component supply unit 6 in the depth direction while the guided member 71 is guided by the guide member 70. While the roller 92A is in contact with the guide portion 89C of the locking member 89 provided in the electronic component mounting apparatus main body 1, the roller 92A is rotated counterclockwise while the roller 92A is rotated in the first locking portion 89A. Will be locked.

  Reference numeral 93 denotes a lock cylinder that constitutes an operating member provided in the electronic component mounting apparatus main body 1. One end of a second lock member 95 that can be rotated about a support shaft 94 is biased by a spring 96 to the rod 93 </ b> A. Has been pressed. When the lock cylinder 93 is actuated and the rod 93A is extended, the second lock member 95 provided in the electronic component mounting apparatus body 1 is rotated counterclockwise, and the other end of the second lock member 95 is rotated. The lock lever 95 </ b> A is in contact with the second locking portion 89 </ b> B of the locking member 89 and restricts the rotation of the locking member 89 in the counterclockwise direction.

  The locking member 89 is provided corresponding to each component supply unit 6, but the locking cylinder 93 and the second lock member 95 are provided corresponding to a plurality of component supply units 6. Therefore, the lock lever 95 </ b> A extends in the direction in which the component supply units 6 are arranged.

  6 and 7, reference numeral 102 denotes a seam detection device for the storage tape C, which is provided on the attachment member 103 attached to the rear end portion of the component supply unit 6. The seam detection device (seam detection means) 102 includes a device main body 104 in which a light emitting element 102A and a light receiving element 102B are provided at a distance of 8 millimeters, and a prism 105 is provided at an upper end portion so that a cross section is U-shaped. The intermediate portion is formed by a passage forming body 107 provided with a tape passage opening 106 so that the storage tape C can pass therethrough.

  That is, as the storage tape C is fed, in the case of the seamless storage tape C, the light from the light emitting element 102A is recursively reflected by the prism 105 via the feed holes (opened at intervals of 4 millimeters) Cb. Since the light is received by the light receiving element 102B, the joint detection device 102 can detect the absence of a joint, and in the case of the storage tape C having a joint, the light from the light emitting element 102A covers the feed hole Cb in accordance with the feeding operation. And is not received by the light receiving element 102B, and the presence of a seam is detected (see FIGS. 8 and 9).

  The connecting tape 108A is for connecting the old storage tape C and the new storage tape C, which have a reduced number of electronic components together with the connection tapes 108B and 108C, and the portion where the connection tape 108A is affixed is a joint. It is.

  Next, a control block diagram of the electronic component mounting apparatus shown in FIG. 10 will be described. Reference numeral 110 denotes a CPU as a control means for overall control of operations related to electronic component mounting of the electronic component mounting apparatus, 111 denotes a RAM (random access memory) as a storage device, and 112 denotes a ROM (read-only memory). ).

  The RAM 111 is mounted for each type of printed circuit board P such as X direction, Y direction and angle information in the printed circuit board P, and arrangement number information of each component supply unit 6 for each mounting order (for each step number). Data is stored, and information on the type (component ID) of each electronic component corresponding to the arrangement number (lane number) of each component supply unit 6, that is, component arrangement information, is stored for each type of electronic component. The recognition interval and the number of times of recognition of the storage portion (storage recess) Cc performed when detecting a seam described later are stored. In addition, as shown in FIG. 8, the RAM 111 includes a splicing seam zone (a seam zone) including a seam (a portion where the connecting tape 108 </ b> A is pasted) set in advance by an operator and storage tapes before and after the seam. ) Z dimension L1 (the old storage tape and the new storage tape are continuous before and after the splicing seam zone), before the seam in the splicing seam zone Z (upstream part, hereinafter upstream) Dimension L2 (referred to as a side zone), the number of storage parts Cc located in the upstream zone (determined by dividing the dimension L2 by the pitch of the storage parts Cc), and the number of storage parts Cc located in the splicing seam zone. (Determined by dividing the dimension L1 by the pitch of the storage portion Cc) and the like. Component library data composed of items that represent the characteristics of the electronic component for each ID is also stored.

  Then, the CPU 110 comprehensively controls operations related to the component mounting operation of the electronic component mounting apparatus according to the program stored in the ROM 112 based on the data stored in the RAM 111. That is, the CPU 110 rotates the X-axis drive motor 12X through the drive circuit 113, drives the Y-axis drive motor 12Y through the drive circuit 114, and rotates the suction nozzle 18 by θ through the drive circuit 115. The driving of the θ-axis motor 18A is controlled, and the driving of the vertical-axis motor 16A for moving the mounting head 16 up and down is further controlled via the drive circuit 116.

  A recognition processing device 117 is connected to the CPU 110 via the interface 118. The recognition processing device 117 performs recognition processing of an image captured by the component recognition camera 14 or the board recognition camera 17. The processing result is sent to the CPU 110. That is, the CPU 110 outputs an instruction to the recognition processing device 117 so as to perform recognition processing (calculation of misalignment amount, etc.) on the image captured by the component recognition camera 14 or the board recognition camera 17 and recognizes the recognition processing result. It is received from the device 117.

  That is, when the amount of positional deviation is grasped by the recognition processing of the recognition processing device 117, the result is sent to the CPU 110, and the CPU 110 detects the X axis drive motor 12X, the Y axis motor 12Y and the suction nozzle 18 of the XY stage 12. The θ-axis motor 18A is corrected and moved so that the electronic component is mounted on the printed circuit board P.

  The monitor 119A as a display device is provided with various touch panel switches 119B as input means for data setting. The operator can perform various settings by operating the touch panel switch 119B. Stored in 109A is a counter provided for each component supply unit 6, and counts the number of times of feeding of the storage tape C (the number of feed commands by the CPU 110) since the joint detection device 102 first detects the connecting tape 108A (seam). It should be noted that after the joint is detected by the joint detection device 102, the number of feeds required until the head of the splicing joint zone Z, that is, the component storage portion at the most upstream reaches the suction / extraction position of the electronic component is required N times. is there. The N times, which is the number of times, is the above-described tape that is obtained by subtracting the upstream zone dimension L2 (see FIG. 8) from the transport distance of the storage tape C from the joint detection position by the joint detection device 102 to the suction / removal position of the electronic component. It is the number of times divided by the feed pitch (the transport distance by one tape feed, for example, equal to the interval of each component storage unit Cc). A counter 109B is provided for each component supply unit 6 and counts the number of suction mistakes. The presence or absence of electronic components sucked and held by the suction nozzle 18 is detected by the line sensor 109C provided on the mounting head 16 or by component recognition processing. Then, the number of times that there is no continuous part or a suction failure state is counted. Although the counters 109A and 109B are provided for each component supply unit 6, only one is shown in FIG. 10 for convenience.

  A connector 130 is connected to the CPU 110 via an interface 118, and includes an electronic component mounting device side connector 130A and a component supply unit side connector 130B that can be attached to and detached from the electronic component mounting device side connector 130B. The servo motor 28 and the drive motor 42 are connected via 131. The connector 130, the drive circuit 131, the servo motor 28, and the drive motor 42 are provided for each component supply unit 6, but only one is shown in FIG. 10 for convenience.

  Next, electronic component suction and mounting operations will be described. First, the CPU 110 sends a command to the component supply unit 6 that supplies the electronic component having the first step number in the mounting order of the mounting data (data on which position on the printed circuit board, in which direction and which electronic component is mounted). The CPU 110 drives the servo motor 28 and the drive motor 42 of the component supply unit 6 to perform the component feeding operation and the cover tape Ca peeling operation.

  Thereafter, the CPU 110 determines whether the component supply unit 6 has been inserted or removed from the feeder base 19 regardless of the reason.

  That is, when an operator first operates an operation unit (not shown) of the electronic component mounting apparatus, the CPU 110 operates the lock cylinder 93 to pull in the rod 93A, and the second lock member 95 is used as the fulcrum 94 as a fulcrum. The lock lever 95A at the other end of the second lock member 95 is separated from the second lock portion 89B of the lock member 89, and the lock member 89 is rotated counterclockwise. Ready for Therefore, for example, when the operator puts the thumb on the rotatable unlocking lever 79 and puts another finger in the handle 77 and pulls the thumb, the unlocking lever 79 rotates clockwise with the support shaft 78 as a fulcrum. Then, the unlocking member 81 rotates clockwise, and the contact portion 81A pushes up the guide portion 89C of the locking member 89 against the urging force of the coil spring 90, and rotates the locking member 89 counterclockwise. Since the roller 92A is released from the first locking portion 89A (the locking is released), the operator pulls the component supply unit 6 in the forward direction with the handle 77, so that the guide member 70 is covered. The guide member 71 can move forward while being guided, and the component supply unit 6 can be removed from the feeder base 19. Then, the operator can attach the component supply unit 6 to the feeder base 19 by holding the handle 77 and moving the component supply unit 6 in the depth direction while the guided member 71 is guided by the guide member 70.

  At this time, when removing the component supply unit 6 from the feeder base 19, the electronic component mounting device side connector 130A and the component supply unit side connector 130B are disconnected, and when mounting the component supply unit 6 to the feeder base 19, the electronic component mounting is performed. The device-side connector 130A and the component supply unit-side connector 130B need to be coupled. However, since the CPU 110 constantly monitors the component supply unit 6, depending on the state of signals input from the component supply unit 6 via the interface 118 The CPU 110 can determine whether the component supply unit 6 has been inserted or removed from the feeder base 19.

  Accordingly, when the CPU 110 determines that the component is inserted and removed, the substrate recognition camera 14 is moved by driving the X-axis drive motor 12X and the Y-axis drive motor 12Y to the suction / removal position of the component supply unit 6 that has been removed and inserted, and the storage tape C is stored. The part Cc is imaged, and the recognition processing device 117 performs recognition processing. When this recognition process is performed, the size data of the storage unit Cc having a rectangular shape in plan view is stored in the RAM 111. Therefore, the edge of the storage unit Cc subjected to the recognition process and the electronic components stored in the storage unit Cc are included. In this case, since the size closest to the size data among the sizes of the edges of the electronic component is recognized as the component storage unit Cc, the storage unit Cc and the electronic component stored in the storage unit Cc can be distinguished.

  Then, based on the recognition processing result, the correction value is stored in the RAM 111, the X-axis drive motor 12X and the Y-axis drive motor 12Y are driven in consideration of the correction value, and then the vertical axis drive motor 16A is driven. Then, the suction nozzle 18 descends and picks up the electronic component.

  Further, it is determined whether or not the corresponding component supply unit 6 has been inserted / removed from / from the feeder base 19. If it is determined that the component supply unit 6 has not been inserted / removed, the joint detection of the storage tape C is detected by the joint detection device 102, and then a feed command is issued. The CPU 110 determines whether the count value of the counter 109A, which is the number of times, reaches N times.

  Hereinafter, based on the flowchart of FIG. 11, the operation when sucking the electronic component according to the first embodiment of the present invention, particularly when the electronic component is sucked by the suction nozzle, the determination of the sucked state, that is, the presence or absence of the component, is performed. The operation when performing is described.

  The suction nozzle 18 descends to the storage portion Cc of the storage tape C to perform a suction operation. After the suction nozzle 18 is lifted, an image is picked up by the component recognition camera 14 to recognize the presence / absence of electronic components, the suction posture, and the positional deviation with respect to the suction nozzle 18.

  Here, a recognition processing device (presence / absence detection unit) 117 captures and recognizes an image captured by the component recognition camera 14, and the CPU 110 determines whether there is no component based on the recognition result (presence / absence detection result). When there is a component (see FIG. 13), the CPU 110 clears the count of the counter 109B that counts the number of times that there is no continuous component in the lane on which the component supply unit 6 that supplies the component is placed. Then, the mounting operation is continued, and the mounting operation of the sucked electronic component on the substrate is started.

  Further, when the CPU 110 determines whether there is no component based on the recognition result, if there is no component (see FIG. 12), the CPU 110 further selects the component supply unit 6 in the lane to which the electronic component is to be sucked. Whether or not the storage tape at the part take-out position (suction pocket position) is the splicing joint zone Z including the part where the connecting tape 108A is pasted and the front and rear parts thereof, that is, the part supply unit 6 is at the part take-out position. It is determined whether or not the seam zone has been reached.

  That is, the RAM 111 stores N times, which is the number of feeds from when the seam detection device 102 detects the seam until the splicing seam zone Z reaches the part removal position, and as described above, the splicing seam. For example, the number of splicing seam zones equal to the number of storage parts Cc located in the splicing seam zone is the number of feeds required to pass the part picking position. The number of times M is stored, and the counter 109A counts the number of feeds of the storage tape C after the joint detection device 102 first detects the connecting tape 108A (seam), and when the count is N times or more and less than N + M times. The CPU 110 has a splicing seam zone located at the part removal position. The storage tape is determined to be a splice joint part zone.

  As described above, when the CPU 110 determines that the storage tape at the part removal position is the splicing seam zone Z, the CPU 110 recognizes the continuous suction abnormality monitoring function, that is, when the recognition processing device 117 captures and recognizes an image. Based on the result, the CPU 110 continuously determines that there is no part, and by this continuous part absence determination, a flag for canceling the function that causes the apparatus to be abnormally stopped (hereinafter referred to as a continuous suction abnormality monitoring function cancel flag) is turned on. A cancel flag ON is stored in the RAM 111.

  Then, the CPU 110 determines whether or not the continuous suction abnormality monitoring function cancel flag is ON. If it is determined to be ON, the mounting operation is continued, and the electronic component suction and the mounting operation to the substrate are continued.

  If the CPU 110 determines that the seam is not located at the part removal position and the storage tape at the part removal position is not the splicing seam zone Z, the continuous parts of the suction lane on which the target part supply unit is placed The counter 109B that counts the absence is incremented.

  Then, when the counter 109B is incremented in this way, or when the CPU 110 determines that the continuous suction abnormality monitoring function cancel flag is off, the determination of continuous suction abnormality stop is performed, and the same component supply unit, that is, In the electronic component suction operation from the lane on which the same component supply unit is placed, it is determined whether or not there is no component as described above for a predetermined number of times, for example, twice in succession.

  At this time, when it is determined by the COU 110 that there is no component twice in succession, the continuous suction abnormality monitoring function cancel flag is turned OFF, and the display by the monitor 119A, the sound by the buzzer, or the indicator lamp (not shown) An abnormality is notified by lighting or the like, and the electronic component mounting apparatus is stopped.

  If it is determined that the absence of a component is not continued twice, the mounting operation is continued, and the operation of sucking the electronic component and mounting it on the substrate is continued.

  As described above, when it is determined that there is no component in the suction nozzle 18 after the electronic component suction operation and there is no component, if the component take-out portion of the component supply unit that supplies the component is the splicing joint zone Z, continuous suction is performed. Since the abnormality monitoring function is canceled and the counter 109B is not incremented, it is possible to avoid the abnormality notification due to the absence of the component when the splicing seam zone is located at the component take-out portion and the operation stop of the electronic component mounting apparatus. The operating rate of the electronic component mounting apparatus can be improved.

  Further, a predetermined range before and after the connecting tape 108A passes the suction take-out position, for example, a range of 30 mm before and after the connecting tape 108A (a range located on the left and right sides of the connecting tape 108A shown in FIG. When the operator sets the touch panel switch 119B in advance and determines that there is no component, when the splicing seam zone reaches the component extraction position, the storage unit Cc of the component extraction position is imaged and recognized. When the CPU 110 determines that there is no electronic component in the storage unit Cc based on the recognition result by the processing device 117, the continuous suction abnormality monitoring function is canceled and the counter 109B is not incremented. Empty storage in a wide area before and after the seam when connecting the storage tape Even when Cc exists, it is possible to more reliably avoid abnormality notification and electronic component mounting apparatus shutdown due to the absence of a component when the empty storage unit Cc is located in the component take-out unit. As a result, the operating rate of the electronic component mounting apparatus can be improved.

  Thereafter, similarly, when it is determined that there is no electronic component in the storage unit Cc, it is determined whether or not the component take-out unit of the component supply unit that supplies the component is a splicing seam zone. Absorption abnormality monitoring function is cancelled.

  Further, when it is not the splicing seam zone Z, when it is determined that there is no component continuously for a predetermined number of times, for example, twice in the suction operation from the component supply unit placed in the same lane, The abnormality is notified by turning on an unillustrated indicator lamp and the electronic component mounting apparatus is stopped.

  When it is determined that there is an electronic component in the storage unit Cc, the CPU 110 clears the count of the counter 109B, further turns off the continuous suction abnormality monitoring function cancel flag, and returns to the normal suction state monitoring operation.

  After the splicing is performed and the storage tape is fed the predetermined number of times, as described above, the board recognition camera 17 is moved above the part take-out position (suction pocket position), and the board recognition camera 17 removes the part. The storage unit Cc of the position may be imaged, and the CPU 110 may determine whether or not there is an electronic component in the storage unit Cc based on the recognition result by the recognition processing device 117.

  In the above embodiment, a predetermined range before and after the connecting tape 108A passes through the suction extraction position, for example, a range before and after the connecting tape 108A (a range located on the left and right sides of the connecting tape 108A shown in FIG. 8). The splicing joint zone is set in advance by the operator's operation of the touch panel switch 119B, and when it is determined that there is no part, when this splicing joint zone has reached the part removal position, a continuous suction abnormality monitoring function is provided. Canceled and counter 109B not incremented, but at least when it is determined that there is no part, and when the joint (the part where the connecting tape 108A is affixed) has reached the part removal position, continuous suction abnormality monitoring Cancel function, for example, counter 109B ink When the storage tape is not connected, the empty storage portion Cc is positioned at the component take-out portion when there is an empty storage portion Cc at least at the seam when the storage tape is connected by the operator. It is possible to avoid anomaly notification due to the absence of parts and stop the operation of the electronic component mounting apparatus, and as a result, the operating rate of the electronic component mounting apparatus can be improved.

  In the following, the second embodiment of the present invention will be described with reference to the flowchart of FIG. 14 and the operation when the suction state, that is, the presence / absence of components is determined. Note that detailed description of operations similar to those of the first embodiment described above is omitted.

  When the CPU 110 determines that there is no component and determines that the storage tape (sucked lane) at the component extraction position is the splicing seam zone, the CPU 110 recognizes the continuous processing abnormality monitoring function, that is, the recognition processing device 117 captures and recognizes an image. When processing is performed, the CPU 110 continuously determines that there are no parts based on the recognition result, turns on the continuous suction abnormality monitoring function cancel flag, stores the cancel flag ON in the RAM 111, and further the CPU 110 performs the continuous suction abnormality monitoring function. When it is determined that the cancel flag is ON, that is, every time it is continuously determined that there is no part and the storage tape (sucked lane) at the part removal position is the splicing joint zone, Increment a counter (not shown) as the number of unexpected continuous parts To be counted.

  Then, when the number of unexpected continuous component absence is the number of suction abnormal stop monitoring that is set in advance, for example, exceeds 30, the CPU 110 operates to turn off the continuous suction abnormality monitoring function cancel flag and to generate sound by the buzzer. Or abnormality is alert | reported by lighting of the indicator lamp which is not shown in figure, etc., and an electronic component mounting apparatus is stopped.

  Therefore, in the electronic component suction operation from the splicing seam zone, when the empty storage portions Cc continue to exceed the number of consecutive empty storage portions Cc that has been assumed in advance, the electronic component mounting device operates. As described above, the electronic component mounting apparatus is surely prevented when the operation of the electronic component mounting apparatus is avoided as much as possible and a large number of empty storage portions Cc continue due to the inconvenience of the electronic component mounting apparatus. Can be stopped.

  When it is determined that there is an electronic component in the storage unit Cc, the CPU 110 clears the count of the counter 109B and the number of unexpected continuous component absence, further turns off the continuous suction abnormality monitoring function cancel flag, and the normal suction state Return to the monitoring operation.

  The electronic component mounting apparatus has been described by taking a so-called multi-function chip mounter as an example. However, the present invention is not limited to this and may be applied to a high-speed chip mounter such as a rotary table type.

  The component supply unit may be mounted on a cart that is detachably connected to the main body, and the feeder base may be provided on the cart.

  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.

It is a top view of an electronic component mounting apparatus. It is a side view of the component supply unit of the state fixed on the feeder base. It is a longitudinal cross-sectional view of the cover tape peeling mechanism of FIG. FIG. 3 is a diagram illustrating a relationship between a component supply unit and a feeder base, as viewed from an arrow X direction in FIG. 2. FIG. 3 is a cross-sectional view illustrating a relationship between a component supply unit and a feeder base at a position of a front left / right regulating pin in FIG. 2. It is a side view of a seam detection device. It is the figure which looked at the joint detection apparatus in FIG. 6 from the arrow direction. It is a top view of the storage tape containing the splicing seam part zone connected with the connection tape. It is a side view of the storage tape connected with the connection tape. It is a control block diagram. It is a flowchart figure of 1st Embodiment. It is a figure of the taken-in image of the state without components in a storage part. It is a figure of the taken-in image of the state with components in a storage part. It is a flowchart figure of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus main body 6 Component supply unit 14 Component recognition camera (presence detection means)
17 Substrate recognition camera 18 Suction nozzle 28 Servo motor 110 CPU
102 Seam Detection Device 108A Connecting Tape (Seam)
109A, 109B Counter 110 CPU (control means)
111 RAM
117 Recognition processing device (presence / absence detection means)
C Storage tape Cc Storage zone Z Splicing seam zone

Claims (5)

  A plurality of component supply units that supply electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side, and the suction nozzle receives the electronic components supplied from the component supply unit. In the electronic component mounting apparatus that is picked up by the pick-up unit and mounted on the printed circuit board, a presence / absence detecting unit that detects the presence / absence of the component picked up by the pick-up nozzle in the pick-up unit is provided for each of the component supply units. The joint detection means for detecting the joint connecting the storage tapes, and when the presence / absence detection means detects the absence of electronic components continuously for a set number of times, the suction operation and the mounting operation are stopped, and the presence / absence is detected. When the detecting means detects that there is no part, the seam detection device detects the seam, and the seam is removed from the seam. To when it is reached, the electronic component mounting apparatus characterized by comprising a control means for controlling so as not to stop the suction operation and mounting operation of the electronic component.   A plurality of component supply units that supply electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side, and the suction nozzle receives the electronic components supplied from the component supply unit. In an electronic component mounting apparatus that is picked up by a pick-up unit and mounted on a printed circuit board, presence / absence detecting means for detecting the presence / absence of a component picked up by the pick-up nozzle in the pick-up part, and a detection result by the presence / absence detecting means When there are no electronic components in succession, a counter that counts the number of times that there is no component, a seam detection unit that detects a joint that is provided for each of the component supply units and connects the storage tapes, and the counter counts the set number of times. When it reaches, the suction operation and the mounting operation are stopped, and the presence / absence detecting means detects that there is no part. And a control means for controlling so that counting by the counter is not performed when the seam is detected by the seam detection device and the seam has reached the take-out portion. Component mounting device.   A plurality of component supply units that supply electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side, and the suction nozzle receives the electronic components supplied from the component supply unit. In the electronic component mounting apparatus that is picked up by the pick-up unit and mounted on the printed circuit board, a presence / absence detecting unit that detects the presence / absence of the component picked up by the pick-up nozzle in the pick-up unit is provided for each of the component supply units. When a detection device that detects a joint connecting the storage tapes and a state where no electronic component is continuously detected by the presence / absence detection unit is detected a set number of times, a suction operation is performed when the count of the counter reaches the set number of times. And when the presence / absence detecting means detects that there is no part, the seam detecting device Control means for controlling so that the electronic component suction operation and mounting operation are not stopped when a joint is detected and a joint zone including a joint and a storage portion before and after the joint has reached the take-out portion; An electronic component mounting apparatus characterized by being provided.   A plurality of component supply units that supply electronic components stored in the storage portion of the storage tape to the component take-out portion by feeding operation of the storage tape are arranged side by side, and the suction nozzle receives the electronic components supplied from the component supply unit. In an electronic component mounting apparatus that is picked up by a pick-up unit and mounted on a printed circuit board, presence / absence detecting means for detecting the presence / absence of a component picked up by the pick-up nozzle in the pick-up part, and a detection result by the presence / absence detecting means When there are no electronic components in succession, a counter that counts the number of times that there is no component, a detection device that detects a seam that is provided for each of the component supply units and connects the storage tapes, and the count of the counter reaches the set number of times. When it reaches, the suction operation and the mounting operation are stopped, and when the presence / absence detecting means detects that there is no part Control means for controlling so that counting by the counter is not performed when the seam is detected by the seam detection device and a seam zone including a seam and a storage part before and after the seam has reached the take-out part; An electronic component mounting apparatus characterized by being provided. A counter that counts a state where there is no continuous electronic component in the storage unit according to a recognition processing result of the recognition processing device when the seam zone is located in the take-out unit; 5. The electronic component mounting apparatus according to claim 3, wherein when the count reaches a set number of times, the suction operation and the mounting operation are controlled to be stopped.

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