JP2023026709A - Component mounting device and component mounting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a component mounting device and a component mounting method that can continue the operation of the mounting head while ensuring the safety of a worker.

SOLUTION: A component mounting device 1 includes a mounting head 31 that picks up a component 3 from a parts feeder 21 through an opening formed above a component supply port 21p of a parts feeder 21 held by a carriage 22 coupled to a base 11 and mounts it on a substrate 2, and a shutter 45 that is moved between an open position that opens the opening and a closed position that closes the opening, at least while the shutter 45 is being moved from the open position to the closed position, the mounting head 31 picks up the component 3 from the parts feeder 21 held by another carriage 22 different from the carriage 22 and mounts it on the substrate 2.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a component mounting apparatus for mounting electronic components on a board and a component mounting method using the component mounting apparatus.

A component mounting apparatus includes a parts feeder that supplies components while attached to a base, and a mounting head that picks up components from the parts feeder attached to the base and mounts them on a board. 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 to cover the top of the base, and the mounting head takes out the parts from the parts feeder held by the truck through the opening.

When the carriage is removed from the base in such a component mounting apparatus, a cavity formed at the end of the base is formed. The cavity communicates with the movable area of the mounting head through the opening. For this reason, an unsafe state occurs, such as an operator accidentally touching the mounting head during movement. 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 mounter capable of mounting carriages on opposite sides of a base, when the carriage is removed from one side of the base, the supply of components from the carriage on the other side of the base is stopped and mounting is stopped. The operation of the head is also completely stopped (see Patent Document 1, for example).

JP 2012-151332 A

However, even when the truck holding the parts feeder is removed from one side of the base, the mounting head on the removed truck can be operated if the safety of the operator can be ensured.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a component mounting apparatus and a component mounting method capable of continuing the operation of the mounting head while ensuring the safety of the operator.

A component mounting apparatus according to the present invention includes a mounting head that picks up a component from the parts feeder through an opening formed above a component supply port of the parts feeder held by a carriage coupled to a base and mounts the component on a board; a shutter that is moved between an open position that opens an opening and a closed position that closes the opening, wherein at least while the shutter is moved from the open position to the closed position, the mounting head is A part is picked up from a parts feeder held by another truck different from the above-mentioned truck, and mounted on a board.

A component mounting method according to the present invention comprises: a mounting head for picking up a component from the parts feeder through an opening formed above a component supply port of the parts feeder held by a cart coupled to a base and mounting the component on a substrate; A component mounting device comprising a shutter that is moved between an open position that opens an opening and a closed position that closes the opening, wherein the mounting head picks up a component from the parts feeder and mounts the component on the board. In the method of mounting parts by an apparatus, at least while the shutter is moved from the open position to the closed position, the mounting head takes out the parts from a parts feeder held by another truck different from the truck.

ADVANTAGE OF THE INVENTION According to this invention, operation|movement of a mounting head can be continued, ensuring a worker's safe state.

1(a) side view and (b) plan view of a component mounting apparatus according to an embodiment of the present invention 1 is a perspective view of a main part of a component mounting apparatus according to one embodiment of the present invention; FIG. (a) and (b) are partial perspective views of a component mounting apparatus according to an embodiment of the present invention. 1(a) partial perspective view and (b) partial side view of a component mounting apparatus according to one embodiment of the present invention 1(a) partial perspective view and (b) partial side view of a component mounting apparatus according to one embodiment of the present invention 1(a) partial perspective view and (b) partial side view of a component mounting apparatus according to one embodiment of the present invention 1(a) partial perspective view and (b) partial side view of a component mounting apparatus according to one embodiment of the present invention 1(a) partial perspective view and (b) partial side view of a component mounting apparatus according to one embodiment of the present invention 1 is a block diagram showing a control system of a component mounting apparatus according to one embodiment of the present invention; FIG. 1(a) side view and (b) plan view of a component mounting apparatus according to an embodiment of the present invention 1 is a partial perspective view of a component mounting apparatus according to one embodiment of the present invention; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. A component mounting apparatus 1 shown in FIGS. 1(a), (b) and 2 represents one embodiment of the present invention. The component mounting apparatus 1 includes a board transfer section 12 , a component supply section 13 , and a component mounting section 14 on a base 11 and repeatedly performs an operation of mounting a component 3 on a board 2 . Here, for convenience of explanation, the transport direction of the substrate 2 by the substrate transport unit 12 (the arrow A shown in FIGS. 1B and 2) is defined as the X-axis direction (horizontal direction as seen from the operator), and the X-axis direction The orthogonal horizontal direction (the front-rear direction as seen from the operator) is defined as the Y-axis direction. Also, the vertical direction is defined as the Z-axis direction.

In FIGS. 1A, 1B and 2, the board transfer section 12 has two board transfer lanes 12L before and after receiving the board 2 delivered from another apparatus on the upstream process side and transferring it in the X-axis direction. consists of The parts supply unit 13 is composed of one or a plurality of parts feeders 21 attached to two locations facing each other in the front-rear direction of the base 11 and a carriage 22 that attaches and holds these parts feeders 21 to a feeder base 22a. The carriage 22 is coupled 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 collectively attached to or removed from the base 11. can be done. The parts feeder 21 is, 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 section 14 is composed of two mounting heads 31 facing each other in the front-rear direction of the base 11 and a head moving mechanism 32 for independently moving these two mounting heads 31 within a horizontal plane. Each mounting head 31 is provided with a plurality of suction nozzles 31 a for sucking the parts 3 supplied by the parts feeder 21 attached to the base 11 .

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

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

A safety cover 36 (cover member) is provided on the base 11 to cover the area above the base 11 (the movable area of the two mounting heads 31). A part of the safety cover 36 can be opened and closed. When the movement of the mounting head 31 by the head moving mechanism 32 is stopped, the operator can access the substrate transfer section 12, the mounting head 31, etc. by partially opening the safety cover 36. FIG.

3(a) and 3(b), in front of and behind the base 11 are box portions 41 arranged on both left and right sides, and left and right partition walls 42 arranged in the intermediate portion thereof and extending in the horizontal direction in the vertical plane. A carriage insertion portion 43 having a concave shape in a plan view is formed by . A portion of the safety cover 36 (overhanging portion 36a) projects above each carriage insertion portion 43, and a rectangular opening 44 is formed by the overhanging portion 36a of the safety cover 36, the left and right box portions 41, and the partition wall 42. It is 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 bases of the parts feeders 21 held by the feeder base 22a are attached. Positioning with respect to the table 11 is performed. As a result, the parts supply port 21p of each parts feeder 21 is located directly below the opening 44. As shown in FIG.

In FIGS. 4(a) and 4(b), a shutter 45 made of a plate-like member is provided in the area of the partition wall 42 facing the carriage 22 in a substantially vertical posture extending in the left-right direction. A shutter driving mechanism 46 is accommodated in the portion 41 . The shutter 45 is moved by a shutter driving mechanism 46 between an "open position" in which the opening 44 is opened in the substantially vertical posture and a "closed position" in which the opening 44 is closed in a substantially horizontal posture.

4A and 4B, the shutter driving mechanism 46 includes a base member 50 extending in the front-rear direction, a cylinder 51 extending in the front-rear direction outside the base member 50, and attached to the base member 50. It has an L-shaped arm member 53 whose central portion is supported by a first pin 52 . Here, the surface on which the partition wall 42 of the cavity inserted into the base 11 is arranged is the back side, and the side opposite to the back side is the hand side. The cylinder 51 is supported by a cylinder support member 54 provided on the base member 50 at the end of the front side surface of the cylinder 51 , and is supported at the end of the front side of the arm member 53 by a second pin 55 at the end of the rear side surface. is coupled to

The shutter drive mechanism 46 also has 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 extends in the vertical direction on the far side of the base member 50 , and the second guide groove 57 extends on the front side of the base member 50 relative to the first guide groove 56 . provided extending in the direction The upper end of the second guide groove 57 is bent forward.

In FIG. 4(b), the first link member 58 has a linear shape and positions the second pin 61 provided on one end side in the first guide groove 56, and the second pin 61 provided on the other end side. The third pin 62 is positioned inside the second guide groove 57 . A lower end portion of the shutter 45 positioned at the open position is coupled to the first link member 58 . The second link member 59 has a linear shape extending substantially in the vertical direction. A fifth pin 64 is connected to the intermediate portion of the first link member 58 . One end of the third link member 60 is coupled to a sixth pin 65 provided on the base member 50 , and a long hole 66 provided on the other end of the third link member 60 accommodates a third pin 65 provided in the intermediate portion of the arm member 53 . 7 pin 67 is located.

When the cylinder 51 extends 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, thereby causing the second link member 59 to move. 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 rises along the second guide groove 57. It rises (Figs. 4(a), (b), Figs. 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 extension of the cylinder 51 causes the first link member 58 to move. When it rises further, the shutter 45 swings so that the entire shutter 45 falls forward (FIGS. 5(a), (b), FIGS. 6(a), (b), FIGS. 7(a), (b)). )), and finally, the shutter 45 becomes horizontal and is positioned at the closed position (FIGS. 8(a) and 8(b)). On the other hand, when the cylinder 51 contracts from the state in which the shutter 45 is at the closed position, the shutter 45 moves in a path opposite to that when the cylinder 51 is extended, and is positioned at the open position.

In this embodiment, the shutter 45 is made of a plate-like member, and is substantially horizontal at the closed position and substantially vertical at the open position. 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 board transport lane 12L, the parts feeder 21, the head moving mechanism 32, and the nozzle operating mechanism 31G in order to mount the component 3 on the board 2 and transport it. Further, the control device 70 has a shutter control section 70a that controls the driving of each of the shutters 45 that are provided on the front and rear sides of the base 11 so as to face each other. The shutter control section 70 a controls the operation of the shutter drive mechanism 46 corresponding to each shutter 45 .

In FIG. 1A, the first detectors 71 (first detection means) are provided at front and rear positions of the base 11 . These first detectors 71 detect the state in which the carriage 22 is coupled to the base 11 by engaging with projections 22b provided on the carriage 22 . A detection signal from the first detector 71 is input to the shutter control section 70a of the control device 70 (FIG. 9). The first detector 71 also functions as a detachment detector that detects a state in which 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 carriage 22 of the box portion 41 contacts. The second detector 72 detects connection and disconnection by ON/OFF of a mechanical switch such as a microswitch in this embodiment. The second detector 72 is switched on when the truck 22 contacts and presses the actuator portion 72 a of the second detector 72 , and detects the coupling of the truck 22 . Further, the second detector 72 is switched off by the release of the actuator portion of the second detector 72 that is being pressed, and detects the detachment of the carriage 22 .

In FIG. 9, shutter operation buttons 73 are provided on the front and rear sides of the safety cover 36, respectively. When the operator operates the front or rear shutter operation button 73 , the shutter control unit 70 a of the control device 70 operates the shutter drive mechanism 46 corresponding to the operated shutter operation button 73 to open 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 removes the carriage 22 from the base 11 in order to replace the parts feeder 21 attached to one side or the other side of the base 11 opposed in the front-rear direction by switching the model of the substrate 2 or the like. explain. The operator operates the shutter operation button 73 on the side corresponding to the parts feeder 21 to be replaced. As a result, the shutter driving mechanism 46 is operated by the shutter control section 70a to move the shutter 45 from the open position to the closed position. As a result, the opening 44, which is a passage during the vertical movement of the suction nozzle 31a when the mounting head 31 positioned above the parts feeder 21 picks up the component 3, is closed by the shutter 45 (FIG. 8A). , (b) and FIGS. 10(a), (b)). As described above, in the present embodiment, when the carriage 22 is removed from the base 11 , the shutter 45 is moved from the open position for opening the opening 44 to the closed position for closing the opening 44 .

The operator removes the truck 22 from the base 11, attaches the parts feeder 21 for supplying the parts 3 after the model change to the feeder base 22a, and then connects the truck 22 to the base 11 again. During this operation, the opening 44 is closed by the shutter 45 (FIG. 11). Therefore, even if a hollow portion behind the carriage inserting portion 43 is formed at the end of the base 11 by removing the carriage 22 from the base 11, the operator can insert the mounting head through the opening 44 from the hollow portion. There is no risk of inserting a hand into the movable area of 31.

When the carriage 22 is again coupled to the base 11 , the parts feeder 21 corresponding to the part 3 after the model changeover is set within the movable area of the mounting head 31 . After connecting the carriage 22 to the base 11 , the operator operates the shutter operation button 73 . As a result, the shutter driving mechanism 46 is operated by the shutter control section 70a to position the shutter 45 from the closed position to the open position. As a result, the opening 44 is opened, and the mounting head 31 can pick up the parts 3 supplied by the parts feeder 21 after replacement.

In the component mounting apparatus 1 according to the present embodiment, the safety of the operator is ensured when the carriage 22 is removed from the base 11 as described above. Therefore, even if the carriage 22 connected to one side of the base 11 in the front-rear direction is detached from the base 11, the carriage 22 connected to the other side in the front-rear direction of the base 11 cannot be attached. The production of the board 2 can be continued by continuing the supply of the parts 3 from the parts feeder 21 and the mounting operation of the parts 3 by the mounting head 31 which picks up the parts 3 supplied by the parts feeder 21 and mounts them on the board 2 .

As described above, in the component mounting apparatus 1 according to the present embodiment, the mounting head 31 moves the component from the parts feeder 21 while the carriage 22 is connected to the base 11 and the shutter 45 is positioned at the open position. 3 is taken out and attached to the substrate 2. Further, in the component mounting method for mounting the component 3 on the substrate 2 by the component mounting apparatus 1, the mounting head is mounted while the carriage 22 is coupled to the base 11 and the shutter 45 is positioned at the open position. 31 takes out the parts 3 from the parts feeder 21 .

Next, a modified example of shutter control by the control device 70 in this embodiment will be described. In the above example, the shutter 45 is moved from the open position to the closed position or from the closed position to the open position by the operator operating the shutter operation button 73 (that is, manually). In a modified example, the operation of the shutter 45 and the movement of the carriage 22 may be interlocked to maintain a safe state. Hereinafter, descriptions of configurations that overlap with the present embodiment will be omitted.

First, a series of operations for removing the carriage 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 detachment direction to detach the carriage 22 from the base 11 . When the first detector 71 detects that the carriage 22 is separated from the base 11, the shutter control section 70a operates the shutter driving mechanism 46. As shown in FIG. As the shutter 45 moves from the open position to the closed position, the operator completely separates the carriage 22 from the base 11 .

Here, the opening 44 is open while the shutter 45 completes its movement to the closed position. That is, if the carriage 22 is completely separated from the base 11 before the shutter 45 completes its movement to the closed position, there is a risk that a hand may be inserted into the movable area of the mounting head 31 through the opening 44 . Therefore, the control device 70 needs to interlock the operation of the shutter 45 with the movement of the carriage 22 . Shutter control of the control device 70 will be described below.

The control device 70 transitions from the safe state to the unsafe state when the first detector 71 detects the detachment of the truck 22, and from the unsafe state to the safe state when the first detector 71 detects the coupling of the truck 22. Transition. The control device 70 detects that the shutter 45 has moved to the closed position or the open position. The control device 70 also 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 measuring after the first detector 71 detects that the carriage 22 has left the base 11 . The control device 70 is maintained in a safe state for a certain period of time (about several seconds) from the start of measurement by the timer 74 . Note that 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 truck 22, the control device 70 activates the timer 74 to maintain a safe state. Then, the control device 70 continues to maintain a safe state when the shutter 45 completes movement from the open position to the closed position within a certain period of time (about several seconds) after the start of measurement by the timer 74 . In this way, the control device 70 controls to maintain a safe state even while the carriage 22 is detached. A safe state can be ensured. If the movement of the shutter 45 from the open position to the closed position is not completed within a certain period of time (about 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 the unsafe state.

Next, a procedure for connecting the detached carriage 22 on one side or the other side to the base 11 will be described. The controller 70 maintains a safe state when the second detector 72 detects that the truck 22 has been moved to a predetermined position. When the second detector 72 detects the docking of the carriage 22, the shutter 45 begins to operate. When the second detector 72 detects the coupling of the carriage 22 , the carriage 22 prevents the operator from inserting his hand into the movable area of the mounting head 31 through the opening 44 . As such, the controller 70 remains in a safe state and is coupled to the carriage 22 by the operator and the first detector 71 is coupled to the carriage 22 . In this manner, the control device 70 controls the mounting head 31 so as to maintain a safe state even while the carriage 22 is connected to the base 11, thereby allowing the mounting head 31 to continue operating.

Note that the control device 70 uses the timer 74 to detect that the shutter 45 has not moved from the closed position to the open position within a certain period of time (about several seconds). determine that a problem has occurred. Then, the control device 70 transitions from the safe state to the unsafe state to stop the operation of the mounting head 31 . Also, if the first detector 71 is not connected to the carriage 22 within a certain period of time (about several seconds), it is determined that the carriage 22 is not properly moving, and the state changes from the safe state to the unsafe state. , the operation of the mounting head 31 may be stopped. Further, in such a configuration, the distance between the carriage 22 attached to the base 11 and the base 11 is small, and the shutter 45 can be moved from the open position to the closed position when the carriage 22 is coupled to the base 11. It is effective even in cases where it is not possible to

The control device 70 further comprises a notification means comprising a notification device 75 for detecting the occurrence of an error when the carriage 22 is separated from the base 11 and a notification device control section 70b (FIG. 9). may be For example, when the shutter driving mechanism 46 cannot operate due to some kind of foreign object caught in the shutter 45, the alarm control unit 70b receives the notification that an abnormality has occurred from the shutter control unit 70a, and activates the alarm 75 ( error notification). Also, when the time measured by the timer 74 reaches the predetermined time set in advance and the second detector 72 detects that the carriage 22 has not been pulled out to the predetermined position toward the operator side, notification is made. The device control unit 70b receives the fact that an abnormality has occurred and activates the annunciator 75 (announces the error).

As described above, in the component mounting apparatus 1 (and the component mounting method using the component mounting apparatus 1) according to the present embodiment, the carriage 22 is connected to the base 11 and the shutter 45 is positioned at the open position. In this state, the mounting head 31 picks up the component 3 from the parts feeder 21 and mounts it on the board 2 . Further, in the component mounting apparatus 1 according to the present embodiment, when the carriage 22 is removed from the base 11 and the mounting head 31 takes out the component 3 from the parts feeder 21 attached to the base 11, the base 11 and the base 11 are separated from each other. Since the shutter 45 closes the opening 44 formed between the safety cover 36 provided covering the upper part of the carriage 22, the operator can move the carriage 22 from the base 11 to the end of the base 11. Even if a hollow portion is formed, there is no danger of inserting a hand into the movable area of the mounting head 31 through the opening portion 44 from the hollow portion. Therefore, even when the carriage 22 is detached from the base 11, the operation of the mounting head 31 can be continued while ensuring the safety of the operator.

It should be understood by those skilled in the art that this embodiment is merely an example, and that various modifications can be made to combinations of these components and processing processes, and that such modifications are within the scope of the present invention.

Provided are a component mounting device and a component mounting method capable of continuing the operation of a mounting head while ensuring the safety of a worker.

REFERENCE SIGNS LIST 1 component mounting device 2 substrate 3 component 11 base 21 parts feeder 21p component supply port 22 cart 31 mounting head 36 safety cover (cover member)
44 opening 45 shutter 46 shutter drive mechanism 70a shutter control section 73 shutter operation button

Claims (8)

a mounting head that picks up a component from the parts feeder through an opening formed above a component supply port of the parts feeder held by a truck coupled to a base and mounts it on a substrate;
a shutter that is moved between an open position that opens the opening and a closed position that closes the opening;
A component mounting apparatus, wherein at least while the shutter is moved from the open position to the closed position, the mounting head picks up a component from a parts feeder held by another carriage different from the carriage and mounts it on a substrate. 2. The component mounting apparatus according to claim 1, further comprising a shutter drive mechanism for driving said shutter. 3. The component mounting apparatus according to claim 2, further comprising a shutter control section for controlling said shutter driving mechanism. 4. The component mounting apparatus according to claim 3, wherein the shutter control section operates the shutter drive mechanism to move the shutter from the open position to the closed position when a shutter operation button is operated by an operator. 4. The component mounting apparatus according to claim 3, wherein the shutter control section 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. 6. The component mounting apparatus according to claim 2, wherein the shutter is moved from the closed position to the open position by the shutter drive mechanism after the carriage is coupled to the base. 3. A cover member covering said base and an area above said base, wherein said parts feeder is attached to said base, and said opening is provided between said base and said cover member. 7. The component mounting apparatus according to any one of 1 to 6. a mounting head for picking up a component from the parts feeder through an opening formed above a component supply port of the parts feeder held by a carriage coupled to a base and mounting the component on a board; and an open position for opening the opening. A component mounting method using a component mounting apparatus, which includes a shutter that is moved between a closing position for closing the opening and a shutter, wherein the mounting head takes out a component from the parts feeder and mounts the component on the board. ,
The component mounting method, wherein at least while the shutter is moved from the open position to the closed position, the mounting head picks up the component from a parts feeder held by another carriage different from the carriage.

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