JP2019009474A - Part mounting apparatus - Google Patents

Abstract

To provide a part mounting apparatus capable of continuing an operation of a mounting head while ensuring the safety of workers.SOLUTION: A component mounting apparatus includes a plurality of parts feeders 21 for supplying parts 3, a mounting head 31 for taking out a part 3 from the parts feeder 21 through an opening 44 formed above part supply ports 21p of the plurality of parts feeders 21 and mounting the part on a substrate 2, a shutter 45 moved from an opening position for opening the opening 44 to a closing position for closing the opening 44, and a shutter drive mechanism 46 for driving a shutter 45.SELECTED DRAWING: Figure 7

Description

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

  The component mounting apparatus includes a parts feeder that supplies components in a state of being mounted on a base, and a mounting head that takes out components from the parts feeder that is mounted on the base and mounts them on a substrate. The parts feeder is held by a carriage that can be freely connected to and detached from the base, and the parts feeder can be attached to the base by connecting the carriage to the base. An opening is formed between the base and a cover member provided so as to cover the top of the base, and the mounting head takes out a part from a parts feeder held by the carriage through the opening.

  In such a component mounting apparatus, when the carriage is detached from the base, a hollow portion formed at the end of the base is formed. The cavity communicates with the movable region of the mounting head through the opening. For this reason, an unsafe state such as an operator accidentally touching the moving mounting head occurs. In order to prevent such an unsafe state, when the carriage is detached from the base, the operation of the mounting head is stopped to keep the worker in a safe state. In a component mounting device that can mount a carriage on the opposite side and the other side of the base, when the carriage is removed from one side of the base, the component supply from the other side of the base is stopped and mounted. The head operation is also stopped at all (for example, see Patent Document 1).

JP 2012-151332 A

  However, even if the cart holding the parts feeder is detached from one side of the base, the detached mounting head on the cart side can be operated if the safety state of the operator can be secured.

  Accordingly, an object of the present invention is to provide a component mounting apparatus capable of continuing the operation of the mounting head while ensuring the safety state of the worker.

  A component mounting apparatus according to the present invention includes a plurality of parts feeders for supplying components, and a mounting head for taking out the components from the parts feeder through an opening formed above a component supply port of the plurality of part feeders and mounting the components on a substrate. And a shutter that is moved from an open position that opens the opening to a close position that closes the opening, and a shutter drive mechanism that drives the shutter.

  According to the present invention, the operation of the mounting head can be continued while ensuring the worker's safety state.

BRIEF DESCRIPTION OF THE DRAWINGS (a) Side view (b) Top view of the component mounting apparatus in one embodiment of this invention The principal part perspective view of the component mounting apparatus in one embodiment of this invention (A) (b) The partial perspective view of the component mounting apparatus in one embodiment of this invention BRIEF DESCRIPTION OF THE DRAWINGS (a) Partial perspective view (b) Partial side view of the component mounting apparatus in one embodiment of this invention BRIEF DESCRIPTION OF THE DRAWINGS (a) Partial perspective view (b) Partial side view of the component mounting apparatus in one embodiment of this invention BRIEF DESCRIPTION OF THE DRAWINGS (a) Partial perspective view (b) Partial side view of the component mounting apparatus in one embodiment of this invention BRIEF DESCRIPTION OF THE DRAWINGS (a) Partial perspective view (b) Partial side view of the component mounting apparatus in one embodiment of this invention BRIEF DESCRIPTION OF THE DRAWINGS (a) Partial perspective view (b) Partial side view of the component mounting apparatus in one embodiment of this invention The block diagram which shows the control system of the component mounting apparatus in one embodiment of this invention BRIEF DESCRIPTION OF THE DRAWINGS (a) Side view (b) Top view of the component mounting apparatus in one embodiment of this invention The fragmentary perspective view of the component mounting apparatus in one embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. A component mounting apparatus 1 shown in FIGS. 1 (a), 1 (b) and 2 shows an embodiment of the present invention. The component mounting apparatus 1 includes a substrate transport unit 12, a component supply unit 13, and a component mounting unit 14 on the base 11, and repeatedly executes an operation of mounting the component 3 on the substrate 2. Here, for convenience of explanation, the transport direction of the substrate 2 by the substrate transport unit 12 (the arrow A shown in FIG. 1B and FIG. 2) is taken as the X-axis direction (left-right direction as viewed from the operator), and the X-axis direction An orthogonal horizontal plane direction (front-rear direction seen from the operator) is taken as a Y-axis direction. Also, the vertical direction is the Z-axis direction.

  1A, 1B, and 2, the substrate transport unit 12 receives two substrates 2 sent from another apparatus on the upstream process side and transports them in the X-axis direction before and after the two substrate transport lanes 12L. Consists of. The component supply unit 13 includes one or a plurality of parts feeders 21 attached to two locations facing the base 11 in the front-rear direction and a carriage 22 that attaches and holds these parts feeders 21 to a feeder base 22a. The carriage 22 is connected to or separated from one side or the other side of the base 11 facing in the front-rear direction, so that the parts feeders 21 held on the carriage 22 can be attached to or removed from the base 11 in a lump. Can do. The parts feeder 21 is composed of, for example, a tape feeder, and supplies the parts 3 to the parts supply port 21p while being attached to the base 11.

  The component mounting unit 14 includes two mounting heads 31 that face each other in the front-rear direction of the base 11, and a head moving mechanism 32 that moves the two mounting heads 31 in a horizontal plane independently of each other. Each mounting head 31 is provided with a plurality of suction nozzles 31 a for sucking the components 3 supplied by the parts feeder 21 attached to the base 11.

  Each of the two mounting heads 31 is provided with a substrate camera 33 whose imaging field of view is directed downward. Each substrate camera 33 moves integrally with the mounting head 31 and images a mark (not shown) provided on the substrate 2 positioned at the work position by the substrate transport lane 12L.

  A component camera 34 is provided at a position (two locations) between the parts feeder 21 attached to the base 11 and the substrate transport unit 12. Each component camera 34 has an imaging field of view upward, and the mounting head 31 images the component 3 sucked by the suction nozzle 31a from below.

  A safety cover 36 (cover member) is provided on the base 11 so as to cover an upper area of the base 11 (a movable area of the two mounting heads 31). A part of the safety cover 36 can be opened and closed. In a state where the movement of the mounting head 31 by the head moving mechanism 32 is stopped, the operator can access the substrate transport unit 12, the mounting head 31, and the like by opening a part of the safety cover 36.

  3 (a) and 3 (b), on the front and rear of the base 11, there are a box portion 41 disposed on both the left and right sides, and left and right partition walls 42 disposed in the middle portion thereof and extending in the left-right direction in the vertical plane. Thus, a cart insertion portion 43 having a concave shape in plan view is formed. A part of the safety cover 36 (an overhang portion 36 a) protrudes above each carriage insertion portion 43, and a rectangular opening 44 is formed by the overhang portion 36 a of the safety cover 36, the left and right box portions 41, and the partition wall 42. Has been. When the carriage 22 is inserted into the carriage insertion portion 43 and coupled to the base 11 (FIG. 3 (b)), the feeder base 22a is attached to the base 11 and the base of each part feeder 21 held by the feeder base 22a. Positioning with respect to the base 11 is performed. As a result, the component supply port 21p of each part feeder 21 is positioned directly below the opening 44.

  4 (a) and 4 (b), a shutter 45 made of a plate-like member is provided in a substantially vertical posture extending in the left-right direction in a region facing the carriage 22 of the partition wall 42. The left and right boxes A shutter drive mechanism 46 is accommodated in the part 41. The shutter 45 is moved by the shutter drive mechanism 46 between the “open position” where the opening 44 is opened in the substantially vertical posture and the “closed position” where the opening 44 is closed in the substantially horizontal posture.

  4A and 4B, the shutter drive mechanism 46 is attached to a base member 50 that extends in the front-rear direction, a cylinder 51 that extends outward in the front-rear direction of the base member 50, and the base member 50. In addition, an L-shaped arm member 53 having a central portion supported by the first pin 52 is provided. Here, the surface on which the partition wall 42 of the hollow portion inserted into the base 11 is disposed is the back side, and the opposite side of the back side is the labor side. The end of the front surface of the cylinder 51 is supported by a cylinder support member 54 provided on the base member 50, and the end of the rear surface of the cylinder 51 is supported by the second pin 55 on the front end of the arm member 53. Is bound to.

  The shutter drive mechanism 46 includes a first guide groove 56, a second guide groove 57, a first link member 58, a second link member 59, and a third link member 60. The first guide groove 56 is provided by extending the position of the back side of the base member 50 in the up-down direction, and the second guide groove 57 is moved up and down with respect to the first guide groove 56 of the base member 50. It extends in the direction. The upper end of the second guide groove 57 is bent toward the front side.

  4B, the first link member 58 has a linear shape, and the second pin 61 provided on one end side is positioned in the first guide groove 56 and provided on the other end side. The third pin 62 is positioned in the second guide groove 57. The first link member 58 is coupled to the lower end of the shutter 45 in the open position. The second link member 59 has a linear shape extending substantially in the vertical direction, and a fourth pin 63 provided at the lower end is coupled to the end on the back side of the arm member 53 and provided at the upper end. The formed fifth pin 64 is coupled to the intermediate portion of the first link member 58. One end side of the third link member 60 is coupled to a sixth pin 65 provided in the base member 50, and the third link member 60 is provided in an intermediate portion of the arm member 53 in a long hole 66 provided on the other end side. 7 pins 67 are located.

  When the cylinder 51 is extended from the state in which the shutter 45 is in the open position (FIGS. 4A and 4B), the arm member 53 swings around the first pin 52, and thereby the second link member 59 is interposed. The first link member 58 is pushed up. At this time, the second pin 61 provided on one end side of the first link member 58 rises along the first guide groove 56, and the third pin 62 provided on the other end side extends along the second guide groove 57. It rises (FIG. 4 (a), (b), FIG. 5 (a), (b)). As described above, the shutter 45 is attached to the first link member 58, and the upper end of the second guide groove 57 is bent toward the front side, so that the first link member 58 is expanded by the extension of the cylinder 51. When it further rises, the shutter 45 swings so that the whole of the shutter 45 is tilted forward (FIGS. 5A, 5B, 6A, 6B, 7A, 7B). )) Finally, the shutter 45 assumes a horizontal posture and is positioned at the closed position (FIGS. 8A and 8B). On the other hand, when the cylinder 51 contracts from the state where the shutter 45 is in the closed position, the shutter 45 moves along the path opposite to that when the cylinder 51 is extended, and is located in the open position.

  In the present embodiment, the shutter 45 is made of a plate-like member, and has a substantially horizontal posture at the closed position and a substantially vertical posture at the open position. Therefore, the movement range of the shutter 45 can be limited to a narrow region, and the shutter 45 and its drive mechanism (shutter drive mechanism 46) can be made compact.

  In FIG. 9, the control device 70 controls the operations of the substrate transport lane 12L, the parts feeder 21, the head moving mechanism 32, and the nozzle operating mechanism 31G in order to mount and transport the component 3 on the substrate 2. In addition, the control device 70 includes a shutter control unit 70 a that controls driving of the shutters 45 provided to face the front and rear of the base 11. The shutter controller 70 a controls the operation of the shutter drive mechanism 46 corresponding to each shutter 45.

  In FIG. 1A, the first detector 71 (first detection means) is provided at positions before and after the base 11. These first detectors 71 are engaged with protrusions 22 b provided on the carriage 22 to detect a state in which the carriage 22 is coupled to the base 11. The detection signal of the first detector 71 is input to the shutter control unit 70a of the control device 70 (FIG. 9). The first detector 71 also functions as a detachment detector that detects a state where the carriage 22 coupled to the base 11 is detached from the base 11.

  In FIG. 3A, the second detector 72 (second detection means) is provided at a position where the cart 22 of the box portion 41 contacts. In the present embodiment, the second detector 72 detects coupling and detachment by ON / OFF of a mechanical switch such as a micro switch. The second detector 72 is turned on when the carriage 22 contacts and presses the actuator portion 72 a of the second detector 72, and detects the coupling of the carriage 22. Further, the second detector 72 detects the separation of the carriage 22 by turning off the switch when the pressed actuator portion of the second detector 72 is released.

  In FIG. 9, the shutter operation buttons 73 are provided on the front and rear sides of the safety cover 36. When the front or rear shutter operation button 73 is operated by the operator, the shutter control unit 70a of the control device 70 operates the shutter drive mechanism 46 corresponding to the operated shutter operation button 73 to move the shutter 45. Move from the open position to the closed position, or move from the closed position to the open position.

  A series of operations when the operator detaches the carriage 22 from the base 11 in order to replace the parts feeder 21 attached to one side or the other side facing the front and rear direction of the base 11 by switching the model of the substrate 2 or the like. Will be explained. The operator operates the shutter operation button 73 on the side corresponding to the parts feeder 21 to be replaced. Accordingly, the shutter drive mechanism 46 is operated by the shutter control unit 70a, and moves the shutter 45 from the open position to the closed position. As a result, the opening 44 serving as a passage during the lifting / lowering operation of the suction nozzle 31a when the mounting head 31 positioned above the parts feeder 21 sucks the component 3 is closed by the shutter 45 (FIG. 8A). , (B) and FIGS. 10 (a), (b)). As described above, in this embodiment, when the carriage 22 is removed from the base 11, the shutter 45 is moved from the open position where the opening 44 is opened to the closed position where the opening 44 is closed.

  The operator removes the carriage 22 from the base 11, attaches the parts feeder 21 for supplying the parts 3 after model switching to the feeder base 22 a, and then couples the carriage 22 to the base 11 again. During this operation, the opening 44 is closed by the shutter 45 (FIG. 11). For this reason, even if an operator forms a cavity after the carriage insertion portion 43 at the end of the base 11 by detaching the carriage 22 from the base 11, the mounting head passes through the opening 44 from the cavity. There is no possibility of inserting a hand into the 31 movable region.

  When the carriage 22 is coupled to the base 11 again, the parts feeder 21 corresponding to the part 3 after the model change is set in the movable region of the mounting head 31. When the carriage 22 is coupled to the base 11, the operator operates the shutter operation button 73. Accordingly, the shutter driving mechanism 46 is operated by the shutter control unit 70a, and the shutter 45 is positioned from the closed position to the open position. As a result, the opening 44 is opened, and the mounting head 31 can suck the parts 3 supplied by the replaced parts feeder 21.

  In the component mounting apparatus 1 according to the present embodiment, the worker's safety state is achieved in a state where the carriage 22 is removed from the base 11 as described above. Therefore, even when the carriage 22 coupled to one side in the front-rear direction of the base 11 is detached from the base 11, the carriage 22 is attached to the carriage 22 coupled to the other side of the base 11 in the front-rear direction. The supply of the component 3 from the parts feeder 21 and the mounting operation of the component 3 by the mounting head 31 that takes out the component 3 supplied by the parts feeder 21 and mounts it on the substrate 2 can be continued, and the production of the substrate 2 can be continued.

  Next, a modified example of shutter control by the control device 70 in the present embodiment will be described. In the above-described example, the shutter 45 is an example in which the operator operates the shutter operation button 73 (that is, manually) to move the shutter 45 from the open position to the close position or from the close position to the open position. In the modification, the operation of the shutter 45 and the movement of the carriage 22 may be linked to maintain a safe state. Hereinafter, the description of the structure which overlaps with this Embodiment is abbreviate | omitted.

  First, a series of operations for removing the cart 22 on one side or the other side from the base 11 will be described. The operator moves the carriage 22 coupled to the base 11 in the disengagement direction to remove the carriage 22 from the base 11. When the first detector 71 detects that the carriage 22 is detached from the base 11, the shutter controller 70 a activates the shutter drive mechanism 46. Then, as the shutter 45 is moved from the open position to the closed position, the operator completely removes the carriage 22 from the base 11.

  Here, while the movement of the shutter 45 to the closed position is completed, the opening 44 is in an open state. That is, if the carriage 22 is completely detached from the base 11 before the movement of the shutter 45 to the closed position is completed, there is a risk that a hand may be inserted into the movable region of the mounting head 31 through the opening 44. Therefore, the control device 70 needs to link the operation of the shutter 45 and the movement of the carriage 22. Hereinafter, shutter control of the control device 70 will be described.

  The control device 70 transitions from the safe state to the unsafe state when the first detector 71 detects the detachment of the carriage 22, and changes from the unsafe state to the safe state when the first detector 71 detects the coupling of the carriage 22. Transition. The control device 70 detects that the shutter 45 has moved to the closed position or the open position. In addition, the control device 70 includes a timer 74 (FIG. 9) for maintaining a safe state for a certain period of time so as not to stop the operation of the mounting head 31 when the first detector 71 detects the detachment of the carriage 22. The timer 74 starts measurement after the first detector 71 detects the detachment of the carriage 22 from the base 11. The control device 70 is maintained in a safe state for a certain time (approximately several seconds) from the start of measurement by the timer 74. The control device 70 operates the mounting head 31 in the safe state, and stops the mounting head 31 in the unsafe state.

  When the first detector 71 detects the detachment of the carriage 22, the control device 70 operates the timer 74 to maintain a safe state. Then, the control device 70 continues to maintain the safe state when the movement of the shutter 45 from the open position to the closed position is completed within a certain time (about several seconds) from the start of the measurement by the timer 74. As described above, since the control device 70 is controlled so as to maintain the safe state even while the carriage 22 is detached, there is no possibility that a hand is inserted into the movable region of the mounting head 31 through the opening portion 44. A safe state can be ensured. Note that if the movement of the shutter 45 from the open position to the closed position is not completed within a certain time (several seconds), the control device 70 determines that a problem has occurred in the movement of the shutter 45 because the shutter 45 has not moved. Then, the operation of the mounting head 31 is stopped by transitioning to an unsafe state.

  Next, a procedure for coupling the carriage 22 separated on one side or the other side to the base 11 will be described. The control device 70 maintains the safe state when the second detector 72 detects that the carriage 22 has been moved to a predetermined position. When the second detector 72 detects the coupling of the carriage 22, the shutter 45 starts operating. When the second detector 72 detects the coupling of the carriage 22, the operator does not have to put his hand into the movable region of the mounting head 31 through the opening 44 by the carriage 22. Therefore, the control device 70 continues to maintain a safe state and is coupled to the carriage 22 by the operator, and the first detector 71 is coupled to the carriage 22. As described above, the operation of the mounting head 31 can be continued by controlling the control device 70 so that the safety state is maintained while the carriage 22 is coupled to the base 11.

  The control device 70 uses the timer 74 to move the shutter 45 when the shutter 45 has not been moved from the closed position to the open position within a certain time (several seconds). It is determined that a problem has occurred. Then, the control device 70 transitions from the safe state to the unsafe state and stops the operation of the mounting head 31. Further, even when the first detector 71 is not coupled to the carriage 22 within a certain time (several seconds), it is determined that the movement of the carriage 22 is not properly performed, and the transition is made from the safe state to the unsafe state. Then, the operation of the mounting head 31 may be stopped. Further, in such a configuration, the distance between the carriage 22 and the base 11 attached to the base 11 is narrow, and the shutter 45 is moved from the open position to the closed position when the carriage 22 is coupled to the base 11. It is effective even when it cannot be made.

  The control device 70 further includes notification means configured to include a notification device 75 that detects that an error has occurred when the carriage 22 is separated from the base 11 and a notification device control unit 70b (FIG. 9). It may be. For example, when some foreign matter is caught in the shutter 45 and the shutter drive mechanism 46 cannot be operated, the alarm control unit 70b receives notification that an abnormality has occurred from the shutter control unit 70a and operates the alarm 75 ( Error notification). In addition, when the second detector 72 detects that the carriage 22 has not been pulled out to a predetermined position even when the time measured by the timer 74 reaches a predetermined time set in advance, a notification is given. The device control unit 70b receives the fact that an abnormality has occurred and operates the notification device 75 (error notification).

  As described above, in the component mounting apparatus 1 according to the present embodiment, when the carriage 22 is removed from the base 11, the base 11 is used when the mounting head 31 takes out the component 3 from the parts feeder 21 attached to the base 11. Since the shutter 45 closes the opening 44 formed between the upper cover 11 and the safety cover 36 provided to cover the upper side of the base 11, the operator removes the carriage 22 from the base 11 to thereby remove the base 11. Even if a hollow portion is formed at the end of this, there is no possibility that a hand is inserted into the movable region of the mounting head 31 through the opening 44 from the hollow portion. For this reason, even if it is a case where the trolley | bogie 22 is made to detach | leave from the base 11, operation | movement of the mounting head 31 can be continued, ensuring a worker's safety.

  This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to combinations of those components and processing processes, and such modifications are also within the scope of the present invention.

  Provided is a component mounting apparatus capable of continuing the operation of a mounting head while ensuring the safety of an operator.

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 2 Board | substrate 3 Component 11 Base 21 Parts feeder 21p Component supply port 22 Bogie 31 Mounting head 36 Safety cover (cover member)
44 Opening 45 Shutter 46 Shutter Drive Mechanism 70a Shutter Control Unit 73 Shutter Operation Button

Claims (6)

Multiple parts feeders that supply parts;
A mounting head for taking out components from the parts feeder through an opening formed above the component supply ports of the plurality of parts feeders and mounting them on a substrate;
A shutter that is moved from an open position that opens the opening to a closed position that closes the opening;
A component mounting apparatus comprising: a shutter driving mechanism that drives the shutter.   The component mounting apparatus according to claim 1, wherein the plurality of parts feeders are held by a carriage.   The component mounting apparatus according to claim 2, wherein the opening is formed in a cover member provided to cover an upper part of the plurality of parts feeders.   The component mounting apparatus according to claim 1, further comprising a shutter control unit that controls the shutter driving mechanism.   5. The component mounting apparatus according to claim 4, wherein when a shutter operation button is operated by an operator, the shutter control unit operates the shutter driving mechanism to move the shutter from the open position to the close position.   The component mounting apparatus according to claim 4, wherein the shutter control unit operates the shutter drive mechanism to move the shutter from the closed position to the open position when a shutter operation button is operated by an operator.

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