JP5021368B2 - Parts supply device - Google Patents

Description

  The present invention relates to a component supply apparatus that peels a cover tape from a storage tape and intermittently feeds electronic components stored in a component storage portion of a carrier tape to a component pick-up position.

This type of component supply device is disclosed in, for example, Patent Document 1, but the first lock device that locks the suppressor closed is released in order to improve the loading operation of the storage tape into the component supply device. After that, the suppressor is rotated so that the open state can be locked by the second locking device.
JP-A-2005-228847

  However, after the loading operation of the storage tape, it is necessary for the operator to push down the suppressor that is in a floating state with the spring biased upward against the spring bias.

  Accordingly, an object of the present invention is to simplify the work on the suppressor by the operator after loading the storage tape.

Therefore the first aspect of the present invention is the component supplying device for intermittently feeding the storage electronic components from the storage tape to peel the cover tape to the component receiving portion of the carrier tape to a component pickup position, the fulcrum pins provided on the rear wherein the suppressor of the storage tape by pressing from above and guides the intermittent feed, a locking device for maintaining the state when this suppressor is closed with the rotation to be opened and closed as the maintenance by the locking device A first urging body that urges the suppressor to close in a released state, and a second urging member that urges the pin downward when the state where the suppressor is closed by the locking device is maintained. An urging body is provided.

According to a second aspect of the present invention, there is provided a component supply apparatus for intermittently feeding an electronic component stored in a component storage portion of a carrier tape to a component pick-up position by peeling the cover tape from the storage tape, and using a pin provided at the rear as a fulcrum. A suppressor that can be opened and closed by movement and that presses the storage tape from above to guide its intermittent feed, a first locking device that locks the state where the suppressor is closed, and unlocking by the first locking device A second locking device for locking the open state by rotating the suppressor with the pin as a fulcrum, and closing the suppressor with the first locking device and the second locking device released. to urge a first urging body that energizing, the pin when the state where the suppressor is closed is maintained by the locking device downward Characterized in that a second urging body

The present invention can simplify the work on the suppressor by an operator after loading the storage tape, and biases the pin downward when the state where the suppressor is closed by the lock device is maintained. Since the second urging body is provided, the storage tape can be pressed so as not to come off .

  Hereinafter, an electronic component mounting apparatus 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). In the component supply unit 5, a plurality of component supply units 6, which are electronic component supply devices, are incorporated side by side and detachably on the feeder base 19 to constitute an electronic component mounting device. The feeder base 19 may be simply fixed to the electronic component mounting apparatus main body 1 or may be attached to the electronic component mounting apparatus main body 1 in a detachable manner with a carriage.

  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 fixedly set at a predetermined height so as to receive mounting of electronic components on 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 portion 4 is provided with an XY stage 12 on which a head unit 13 is movably mounted, as well as a component recognition camera 14 and a nozzle stocker 15. The head unit 13 is equipped with two mounting heads 16 and 16 for sucking and mounting electronic components, and one substrate recognition camera 17 for recognizing the position of the printed circuit board P. Normally, the XY stages 12 and 12 of both the component mounting parts 4 and 4 are alternately operated.

  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.

  Each component supply unit 6 is equipped with a storage tape in which a large number of electronic components are stored in the respective storage portions of the carrier tape at regular intervals. The storage tape is intermittently fed and the cover tape is peeled off, thereby One electronic component is supplied to the component extraction position of the supply unit 6 one by one and is extracted from each storage unit.

  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 to recognize the suction posture and the positional deviation with respect to the suction nozzle 18. 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 of the XY stage 12, the Y-axis motor and the θ-axis drive motor of the suction nozzle 18 are corrected and moved to mount the electronic component on the printed circuit board P.

  Next, the component supply unit 6 will be described with reference to FIG. The component supply unit 6 intermittently feeds a unit frame 21 and a storage tape that is sequentially wound in a state of being wound around a storage tape reel that is rotatably mounted on the unit frame 21 to a pickup position (suction extraction position) of an electronic component. And a cover tape peeling mechanism (not shown) for peeling the cover tape of the storage tape before the pickup position.

  The storage tape 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. A slit is formed in the suppressor 23, and the cover tape of the storage tape is peeled off from the slit and stored in the storage unit 26. That is, the electronic component mounted on the storage tape is sent to the pickup opening with the cover tape peeled off, and is picked up by the suction nozzle 18.

  Next, the tape feeding mechanism 22 will be described. 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 in the storage tape and having a rotary shaft 33 rotatably supported by a support 31 via a bearing 32 and a worm wheel 35 meshing with a worm gear 34 provided in an intermediate portion of the rotary shaft 33. And a sprocket 36 which is engaged with each other and sends the same. The worm wheel 35 and the support shaft 37 of the sprocket 36 pass through the intermediate partition of the unit frame 21.

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

  Further, as shown in FIG. 3, the suppressor 23 has a generally U-shaped cross section from a vertical piece 23A serving as a support portion and a horizontal piece 23B that holds the storage tape engaged with the teeth of the sprocket 36 so that the storage tape does not come off. It has a shape and is locked to the unit frame 21. When the lock is released, the vertical piece 23A is supported so as to be rotatable about the rear pin 43 as a fulcrum.

  That is, a swinging piece 42 that can be swung in a clockwise direction by a spring 40 that is a biasing body supported at the lower end of the frame 21 via a support shaft 41 supported by the frame 21 and can be swung. The swing piece 42 is connected to the vertical piece 23A of the suppressor 23 via a pin 43 so as to be swingable. Therefore, when the front part of the suppressor 23 is locked, the swing piece 42 swings clockwise through the support shaft 41 by the biasing force of the spring 40, and the suppressor 23 swings clockwise. The rear portion of the suppressor 23 (the right portion in FIG. 3) is swung clockwise via the support shaft 41, that is, urged downward, so that the storage tape in which the feed hole is engaged with the teeth of the sprocket 36 cannot be removed Press like so.

  Then, a torsion spring 39 is wound around the pin 43, and one end 39A (the right end in FIG. 4 is bent to the near side) is formed at the rear end of the vertical piece 23A of the suppressor 23. The other end 39B (left end in FIG. 4) is housed inside the recess 42A formed in the swing piece 42 and locked to the swing piece 42, thereby closing the suppressor 23 ( (Counterclockwise in FIG. 4).

  Further, at the front end portion of the component supply unit 6, the spring 50 whose rear end is supported by the frame 21 is urged and swung clockwise by a support shaft 51 supported by the frame 21. An oscillating piece 52 is provided, and the oscillating piece 52 and an engaging piece 53 having an engaging pin 55 at the upper end are rotatably connected via a pin 54 and wound around the pin 54. One end of the torsion spring (not shown) is engaged with the engagement piece 53 and the other end is engaged with the support shaft 51, and the engagement piece 53 is urged to rotate counterclockwise by the torsion spring. Yes.

  Since the spring 50 urges the swinging piece 52 to rotate clockwise, the locking piece 53 is urged downward, and the front end of the vertical piece 23A of the suppressor 23 is applied to the locking pin 55. When the locking portion 56 is locked, the front portion (left portion in FIG. 3) of the suppressor 23 is biased downward, and the entire suppressor 23 is biased downward at both the front and rear portions together with the rear portion described above. When the operator presses the swing piece 52 against the urging force of the spring 50, the swing piece 52 swings counterclockwise about the support shaft 51 and the locking piece 53 moves obliquely upward. Thus, the locking of the locking pin 55 and the locking portion 56 is released, and the suppressor 23 swings clockwise via the pin 43 by the urging force of the spring 40. In this way, by opening the suppressor 23, it becomes easy to load the storage tape into the component supply unit 6.

  That is, when the suppressor 23 is simply opened, the suppressor 23 swings in the closing direction due to the urging force of the torsion spring 39. Therefore, after releasing the locking of the locking pin 55 and the locking portion 56, the operator It is necessary to swing 23 in the opening direction. When the suppressor 23 is swung in the opening direction, the suppressor 23 presses the rear end of the plate spring 44 fixed to the unit frame 21 via the screw 38, and the rear portion of the plate spring 44 is swung (see FIG. 5). ) When the suppressor 23 is further swung in the opening direction, the rear end portion of the suppressor 23 is locked to the locking portion 44A formed by bending the rear end portion of the leaf spring 44, and the suppressor 23 is opened. It is held (locked) in a state, and the storage tape can be easily loaded into the component supply unit 6 (see FIG. 7).

  Note that the suppressor 23 serving as a peeling fulcrum of the cover tape of the storage tape is rotated upward and held through a loading opening 45 formed in the unit frame 21 from the side of the component supply unit 6. The storage tape is configured to be loaded into the component supply unit 6.

  When the component supply unit 6 is attached to the feeder base 19, the operator holds the handle 60 and guides the guided member 61 to the pair of guide members provided on the feeder base 19. While moving in the depth direction, the roller 62 is locked to a locking member provided in the electronic component mounting apparatus main body 1.

  In addition, a grip 60 made of a synthetic resin material having conductivity is formed at the rear part of the component supply unit 6, and a lock release lever 64 that can be rotated about the support shaft 63 is provided. The lock release member 65 provided with the abutment portion 65A and rotatably supported with the support shaft 66 as a fulcrum is connected to the lock release lever 64 by a connecting plate 69 rotatably supported by the support shafts 67 and 68. Are connected through. The unlocking member 65 is urged so as to rotate counterclockwise by a spring (not shown), but counterclockwise rotation is restricted by a restriction pin (not shown).

  The unlocking lever 64, the unlocking member 65, the connecting plate 69, and the like constitute a releasing device that releases the locking between the locking member provided on the feeder base 19 and the roller 62. The handle 60 is made of a conductive synthetic resin material (for example, carbon is mixed in the synthetic resin material), and the component supply unit 6 is grounded via the feeder base 19 and the like. Therefore, the unit frame 21 and the feeder base 19 are also formed of a conductive metal material and are grounded even when static electricity is generated, thereby preventing the electronic component from being electrostatically broken.

  When the guided member 61 is guided by the pair of guide members and the guided member 61 is slid on the feeder base 19 and moved to attach the component supply unit 6, the feeder is moved. A front-rear restricting member (not shown) that restricts the position of the component supply unit 6 in the front-rear direction by the contact of the guided member 61 is provided at the end of the base 19 on the depth side.

  With the above configuration, the mounting operation of the electronic component on the printed circuit board P will be described. First, the printed circuit board P is supplied from the supply conveyor 9 to the set table 8 and is positioned and fixed by the set table 8. Then, according to the mounting data, the XY stage 12 is driven so that the head unit 13 faces the component supply unit 6, and then a desired electronic component is picked up by taking down the suction nozzle 18 provided on the mounting head 16. .

  In this case, the control device sends a feed command to the component supply unit 6 that supplies the electronic component of the first step number in the mounting order according to the mounting data, and the control device controls the servo motor 28 and the cover tape peeling mechanism of the component supply unit 6. Driven to perform the parts feeding operation and the cover tape peeling operation, the electronic tape is fed to the pickup position so that the storage tape is under the suppressor 23, and is sucked through the pickup opening of the suppressor 23. It is picked up by the nozzle 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 to recognize the suction posture and the positional deviation with respect to the suction nozzle 18. 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 of the XY stage 12, the Y-axis motor and the θ-axis drive motor of the suction nozzle 18 are corrected and moved to mount the electronic component on the printed circuit board P.

  Here, when the remaining amount of electronic components is reduced and the storage tape is loaded into the component supply unit 6, the operator first holds the handle 60 and the lock release lever 64 and swings the lock release lever 64. The lock release member 65 is swung via the connecting plate 69 to release the lock between the lock member provided on the feeder base 19 and the roller 62.

  Next, the operator holds the handle 60 and moves the component supply unit 6 in the pulling direction while the guided member 61 guides the pair of guide members provided on the feeder base 19.

  When the operator presses the swing piece 52 against the urging force of the spring 50, the swing piece 52 swings counterclockwise about the support shaft 51 and the locking piece 53 moves obliquely upward. Thus, the locking of the locking pin 55 and the locking portion 56 is released, and the suppressor 23 is slightly swung clockwise through the pin 43 by the urging force of the spring 40. When the suppressor 23 is swung in the opening direction, the suppressor 23 presses the rear end of the plate spring 44 fixed to the unit frame 21 via the screw 38, and the rear portion of the plate spring 44 is swung (see FIG. 5). ) When the suppressor 23 is further swung in the opening direction, the rear end portion of the suppressor 23 is locked to the locking portion 44A formed at the rear end portion of the leaf spring 44, and the suppressor 23 is held in an open state ( The storage tape can be easily loaded into the component supply unit 6 and workability can be improved (see FIGS. 6 and 7).

  Then, after the storage tape is loaded into the component supply unit 6, when the operator presses the suppressor 23 and swings it counterclockwise, the leaf spring 44 is swung downward to engage the locking portion 44 </ b> A of the leaf spring 44. And the rear end of the suppressor 23 are released. At this time, the suppressor 23 swings in the closing direction automatically by the weight and the urging force of the torsion spring 39 even if the operator does not continue to press the suppressor 23 downward. As a result, the work by the operator can be simplified and workability can be improved.

  Further, when the operator presses the suppressor 23 from above, the engaging portion 56 of the vertical piece 23A of the suppressor 23 is engaged with the engaging pin 55, and the suppressor 23 is kept closed and locked. The Thereafter, when the operator holds the handle 60 and moves the guided member 61 in the depth direction while guiding the guided member 61 to the pair of guide members provided on the feeder base 19, the roller 62 is moved to the locking member provided on the feeder base 19. The parts supply unit 6 can be attached to the feeder base 19 by being locked.

  Even if the parts supply unit 6 is not completely locked without being attached to the feeder base 19 and is not locked with the suppressor 23 closed, the suppressor 23 is biased in the closing direction by the biasing force of the torsion spring 39. Is done.

  Accordingly, the suppressor 23 can maintain the level that is slightly lifted even when it is not locked (see FIG. 8). As a result, even if the production operation of the printed circuit board P is resumed, it is possible to prevent the suction nozzle 18 moving when taking out the electronic components from interfering with the suppressor 23, and the suppressor 23 affects the production operation. You can avoid that. In addition to loading the storage tape to the component supply unit due to the decrease in the remaining number of electronic components, the same applies when loading a new storage tape to the component supply unit, for example, due to switching of the production model of the printed circuit board. Advantageous effects can be obtained.

  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 a component supply unit. It is a principal part enlarged side view of a component supply unit. It is a principal part enlarged view of the state which the suppressor closed. It is a principal part enlarged view just before locking a suppressor in the open state. It is an enlarged view of the state which was locked in the state where the suppressor was opened. It is a principal part enlarged view of the state locked in the state which the suppressor opened. It is an enlarged view of the state closed so that a suppressor may not be locked.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus main body 6 Component supply unit 23 Suppressor 39 Torsion spring 44 Leaf spring

Claims (2)

In the component supply device that peels the cover tape from the storage tape and intermittently feeds the electronic components stored in the component storage part of the carrier tape to the component pick-up position, it can be opened and closed by turning the pin provided at the rear as a fulcrum. a suppressor for guiding the intermittent feed presses the storage tape from above with a certain, a locking device for maintaining the state when this suppressor is closed, the suppressor in a state of releasing the maintained by the locking device A first urging body that urges the pin to close; and a second urging body that urges the pin downward when the state where the suppressor is closed by the locking device is maintained. A component supply device characterized by the above. In the component supply device that peels the cover tape from the storage tape and intermittently feeds the electronic components stored in the component storage part of the carrier tape to the component pick-up position, it can be opened and closed by turning the pin provided at the rear as a fulcrum. And a suppressor for holding the storage tape from above and guiding its intermittent feed, a first lock device for locking the closed state of the suppressor, and releasing the lock by the first lock device to support the pin. A second locking device for rotating the suppressor to lock the open state, and a first attachment for urging the suppressor to close with the first locking device and the second locking device released . And a second biasing body for biasing the pin downward when the suppressor is maintained in a closed state by the locking device. Component supply device, wherein a provided.