JP2020161851A - Component mounting system and component mounting method - Google Patents

Abstract

To provide a component mounting system and a component mounting method capable of continuing the operation of a mounting head while ensuring the safety of workers.SOLUTION: The component mounting system includes: a mounting head 31 that is configured to pick up a part 3 from a part feeder 21 through an opening formed above the part supply port 21p of the part feeder 21 held by a dolly 22 coupled to a base 11 and mount the same to a circuit board 2; and a shutter 45 that moves between the open position to open the opening and the closing position that closes the opening. When the dolly 22 is connected to the base 11 and the shutter 45 is at the open position, the mounting head 31 picks up the part 3 from the part feeder 21 and mounts the same to the circuit board 2.SELECTED DRAWING: Figure 1

Description

The present invention relates to a component mounting device for mounting an electronic component on a substrate and a component mounting method using the component mounting device.

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

When the dolly is separated from the base in such a component mounting device, a cavity formed at the end of the base is formed. The cavity leads to the movable area 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 dolly is separated from the base, the operation of the mounting head is stopped to maintain the safety state of the operator. In the component mounting device that can mount the dolly on one side and the other side of the base, when the dolly is removed from one side of the base, the parts supply from the dolly on the other side of the base is stopped and mounted. The operation of the head is also stopped at all (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2012-151332

However, even when the trolley holding the parts feeder is detached from one side of the base, the mounting head on the detached trolley side can be operated as long as the safety state of the operator can be ensured.

Therefore, an object of the present invention is to provide a component mounting device and a component mounting method capable of continuing the operation of the mounting head while ensuring the safety state of the operator.

The component mounting device of the present invention includes a mounting head that takes out parts from the parts feeder through an opening formed above the parts supply port of the parts feeder held by the trolley coupled to the base and mounts the parts on the board. A state in which the carriage is coupled to the base and the shutter is located at the open position, including a shutter that is moved between an open position that opens the opening and a closing position that closes the opening. In this state, the mounting head takes out the parts from the parts feeder and mounts them on the substrate.

The component mounting method of the present invention includes a mounting head that takes out parts from the parts feeder through an opening formed above the parts supply port of the parts feeder held by the trolley coupled to the base and mounts the parts on the substrate. A component mounting that includes a shutter that is moved between an open position that opens the opening and a closing position that closes the opening, and the mounting head takes out a component from the component feeder and mounts the component on the substrate. In a method of mounting parts by an apparatus, the mounting head takes out parts from the parts feeder in a state where the dolly is coupled to the base and the shutter is located at the open position.

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

(A) Side view (b) Plan view of the component mounting device according to the embodiment of the present invention. Perspective view of the main part of the component mounting device according to the embodiment of the present invention. (A) (b) Partial perspective view of the component mounting device according to the embodiment of the present invention. (A) Partial perspective view (b) Partial side view of the component mounting device according to the embodiment of the present invention. (A) Partial perspective view (b) Partial side view of the component mounting device according to the embodiment of the present invention. (A) Partial perspective view (b) Partial side view of the component mounting device according to the embodiment of the present invention. (A) Partial perspective view (b) Partial side view of the component mounting device according to the embodiment of the present invention. (A) Partial perspective view (b) Partial side view of the component mounting device according to the embodiment of the present invention. A block diagram showing a control system of a component mounting device according to an embodiment of the present invention. (A) Side view (b) Plan view of the component mounting device according to the embodiment of the present invention. Partial perspective view of the component mounting device according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The component mounting device 1 shown in FIGS. 1 (a) and 1 (b) and FIG. 2 shows an embodiment of the present invention. The component mounting device 1 includes a board transport unit 12, a component supply unit 13, and a component mounting unit 14 on a 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 (arrow A shown in FIGS. 1B and 2) is defined as the X-axis direction (horizontal direction as seen from the operator), and is defined as the X-axis direction. The direction in the horizontal plane (the front-back direction seen from the operator) is defined as the Y-axis direction. Further, the vertical direction is the Z-axis direction.

In FIGS. 1 (a), 1 (b) and 2, the substrate transport unit 12 receives two substrate transport lanes 12L before and after receiving the substrate 2 sent from another device on the upstream process side and transporting the substrate 2 in the X-axis direction. Consists of. The parts supply unit 13 includes 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 for attaching and holding these parts feeders 21 to the feeder base 22a. The dolly 22 is connected to or separated from one side or the other side facing the base 11 in the front-rear direction, so that the parts feeder 21 held by the dolly 22 can be collectively attached to or removed from the base 11. Can be done. The parts feeder 21 is composed of, for example, a tape feeder, and supplies the parts 3 to the parts supply port 21p in a state of being attached to the base 11.

The component mounting portion 14 includes two mounting heads 31 located opposite to each other in the front-rear direction of the base 11, and a head moving mechanism 32 that moves these two mounting heads 31 independently of each other in a horizontal plane. Each mounting head 31 includes a plurality of suction nozzles 31a that suck the parts 3 supplied by the parts feeder 21 mounted on the base 11.

Each of the two mounting heads 31 is provided with a substrate camera 33 with the imaging field of view facing downward. Each board camera 33 moves integrally with the mounting head 31, and images a mark (not shown) provided on the board 2 in which the board transfer lane 12L is positioned at the working position.

Parts cameras 34 are provided at positions (two locations) between the parts feeder 21 attached to the base 11 and the board transfer unit 12. Each component camera 34 has an imaging field of view facing upward, and the component 3 attracted by the mounting head 31 by the suction nozzle 31a is imaged from below.

The base 11 is provided with a safety cover 36 (cover member) that covers the upper region of the base 11 (the movable region 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 transport unit 12, the mounting head 31, and the like by opening a part of the safety cover 36.

In FIGS. 3A and 3B, in front of and behind the base 11, box portions 41 arranged on both left and right sides and left and right partition walls 42 arranged in the middle portion thereof and extending in the vertical direction in the vertical direction are formed. A trolley insertion portion 43 having a concave shape in a plan view is formed. A part of the safety cover 36 (overhanging portion 36a) projects above each trolley 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. Has been done. When the dolly 22 is inserted into the dolly insertion portion 43 and connected to the base 11 (FIG. 3B), 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 pedestal 11 is made. As a result, the component supply port 21p of each component feeder 21 is located directly below the opening 44.

In FIGS. 4A and 4B, a shutter 45 made of a plate-shaped member is provided in a region of the partition wall 42 facing the carriage 22 in a substantially vertical posture extending in the left-right direction, and the left and right boxes. A shutter drive mechanism 46 is housed in the unit 41. The shutter 45 is moved by the shutter drive mechanism 46 between the "open position" in which the opening 44 is opened in a substantially vertical posture and the "closed position" in which the opening 44 is closed in a substantially horizontal posture.

In FIGS. 4A and 4B, the shutter drive mechanism 46 is attached to a base member 50 extending in the front-rear direction, a cylinder 51 extending outward from the base member 50 in the front-rear direction, and a base member 50. It has an L-shaped arm member 53 whose central portion is supported by the first pin 52. Here, the surface on which the partition wall 42 of the cavity to be inserted into the base 11 is arranged is the back side, and the side opposite to the back side is the labor side. The end of the front surface of the cylinder 51 is supported by the cylinder support member 54 provided on the base member 50, and the end of the back surface is supported by the second pin 55 on the front end of the arm member 53. Is combined with.

Further, the shutter drive mechanism 46 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 is provided so as to extend the position on the inner side of the base member 50 in the vertical direction, and the second guide groove 57 vertically extends the position on the front side of the first guide groove 56 of the base member 50. It is provided extending in the direction. The upper end of the second guide groove 57 is bent toward the front side.

In FIG. 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 is provided on the other end side. The third pin 62 is located in the second guide groove 57. The lower end of the shutter 45 in the open position is connected to the first link member 58. 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 connected to the inner end of the arm member 53 and is provided at the upper end. The fifth pin 64 is coupled 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 the third link member 60 is provided in the middle portion of the arm member 53 in the elongated hole 66 provided on the other end side. 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 passing through the second link member 59. 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 is along the second guide groove 57. Ascend (FIGS. 4 (a), (b), 5 (a), (b)). A shutter 45 is attached to the first link member 58 as described above, and the upper end of the second guide groove 57 is bent toward the front side. Therefore, the extension of the cylinder 51 causes the first link member 58 to be bent. When it rises further, the shutter 45 swings so that the entire shutter 45 falls toward the front side (FIGS. 5 (a), (b), 6 (a), (b), 7 (a), (b). )) Finally, the shutter 45 is in a horizontal position and is located in the closed position (FIGS. 8 (a) and 8 (b)). 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 in the reverse path of the extension of the cylinder 51 and is located in the open position.

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

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. Further, the control device 70 has a shutter control unit 70a for controlling the drive of each of the shutters 45 provided so as to face each other in the front and rear of the base 11. The shutter control unit 70a 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 in front of and behind the base 11. The first detector 71 detects a state in which the trolley 22 is coupled to the base 11 by fitting with a protrusion 22b provided on the trolley 22. 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 for detecting 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 comes into contact with the second detector 72. In the present embodiment, the second detector 72 detects coupling and disconnection by turning ON / OFF a mechanical switch such as a micro switch. The switch of the second detector 72 is turned on by the carriage 22 contacting and pressing the actuator portion 72a of the second detector 72 to detect the coupling of the carriage 22. Further, the second detector 72 detects that the carriage 22 is detached by turning off the switch when the actuator portion of the second detector 72 that is being pressed is released.

In FIG. 9, shutter operation buttons 73 are provided on the front and rear of the safety cover 36, respectively. When the front or rear shutter operation button 73 is operated by an 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 release 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 separates the trolley 22 from the base 11 in order to replace the parts feeder 21 attached to one side or the other side facing the base 11 in the front-rear direction by switching the model of the board 2. Will be explained. 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 drive mechanism 46 is operated by the shutter control unit 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 ascending / descending operation of the suction nozzle 31a when the mounting head 31 located above the part feeder 21 sucks the part 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 where the opening 44 is opened to the closed position where the opening 44 is closed.

The operator removes the dolly 22 from the base 11, attaches the parts feeder 21 that supplies the parts 3 after the model change to the feeder base 22a, and then connects the dolly 22 to the base 11 again. During this work, the opening 44 is in a state of being closed by the shutter 45 (FIG. 11). Therefore, even if the trolley 22 is separated from the pedestal 11 to form a cavity behind the trolley insertion portion 43 at the end of the base 11, the operator can attach the mounting head from the cavity through the opening 44. There is no risk of inserting a hand into the movable area of 31.

When the dolly 22 is connected to the base 11 again, the parts feeder 21 corresponding to the part 3 after the model change is set in the movable area of the mounting head 31. After connecting the dolly 22 to the base 11, the operator operates the shutter operation button 73. As a result, the shutter drive mechanism 46 is operated by the shutter control unit 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 suck the parts 3 supplied by the parts feeder 21 after replacement.

In the component mounting device 1 according to the present embodiment, the safety state of the operator is achieved in the state where the carriage 22 is removed from the base 11 as described above. Therefore, even when the trolley 22 coupled to one side of the base 11 in the front-rear direction is separated from the pedestal 11, it is attached to the trolley 22 coupled to the other side of the base 11 in the front-rear direction. 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 for taking out the parts 3 supplied by the parts feeder 21 and mounting them on the board 2.

As described above, in the component mounting device 1 according to the present embodiment, the mounting head 31 is a component from the component feeder 21 in a state where the carriage 22 is coupled to the base 11 and the shutter 45 is located in the open position. 3 is taken out and mounted on the substrate 2. Further, in the component mounting method in which the component 3 is mounted on the substrate 2 by the component mounting device 1, the mounting head is in a state where the carriage 22 is coupled to the base 11 and the shutter 45 is located in the open position. 31 takes out the part 3 from the part feeder 21.

Next, a modified example of shutter control by the control device 70 in the present embodiment will be described. In the above example, the shutter 45 shows an example in which 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 the modified example, 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 configuration overlapping with the present embodiment will be omitted.

First, a series of operations of separating the carriage 22 on one side or the other side from the base 11 will be described. The operator moves the dolly 22 coupled to the base 11 in the detaching direction to separate the trolley 22 from the base 11. When the shutter control unit 70a detects that the carriage 22 is separated from the base 11 by the first detector 71, the shutter control unit 70a operates the shutter drive mechanism 46. Then, as the shutter 45 moves from the open position to the closed position, the operator completely separates the trolley 22 from the base 11.

Here, the opening 44 is in the open state while the shutter 45 completes the movement to the closed position. That is, if the dolly 22 is completely separated from the base 11 before the shutter 45 completes the movement to the closed position, there is a possibility 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 link the operation of the shutter 45 with the movement of the carriage 22. The shutter control of the control device 70 will be described below.

When the first detector 71 detects the detachment of the trolley 22, the control device 70 transitions from the safe state to the unsafe state, and when the first detector 71 detects the coupling of the trolley 22, the control device 70 changes from the unsafe state to the safe state. Transition. The control device 70 detects that the shutter 45 has moved to the closed position or the open position. Further, the control device 70 includes a timer 74 (FIG. 9) for maintaining a safe state for a certain period of time so that the operation of the mounting head 31 is not stopped when the first detector 71 detects the detachment of the carriage 22. The timer 74 starts the 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 period of time (about several seconds) from the start of measurement of the timer 74. The control device 70 operates the mounting head 31 when it is in a safe state, and stops the mounting head 31 when it is in an unsafe state.

When the first detector 71 detects the detachment of the carriage 22, the control device 70 operates the timer 74 to maintain the safe state. Then, the control device 70 continues to maintain the safe state when the shutter 45 moves from the open position to the closed position within a certain time (about several seconds) from the start of measurement of the timer 74. In this way, the control device 70 controls so that the safety state is maintained even while the carriage 22 is detached, so that there is no risk of inserting a hand into the movable area of the mounting head 31 through the opening 44. A safe state can be ensured. If the shutter 45 has not been moved from the open position to the closed position within a certain period of time (about several seconds), the control device 70 determines that the shutter 45 has not moved and a problem has occurred in the movement of the shutter 45. Then, the state transitions to an unsafe state and the operation of the mounting head 31 is stopped.

Next, a procedure for connecting the separated carriage 22 on one side or the other side to the base 11 will be described. The control device 70 maintains a 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 trolley 22, the operator does not have a possibility that the trolley 22 will insert his / her hand into the movable area of the mounting head 31 through the opening 44. Therefore, the control device 70 continues to maintain a safe state, is coupled to the carriage 22 by the operator, and the first detector 71 is coupled to the carriage 22. In this way, the control device 70 can continue the operation of the mounting head 31 by controlling the carriage 22 so as to maintain the safety state while the carriage 22 is connected to the base 11.

When the control device 70 uses the timer 74 to complete the movement of the shutter 45 from the closed position to the open position within a certain period of time (about several seconds), the shutter 45 does not move and the shutter 45 moves. Judge 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 if the first detector 71 is not connected to the trolley 22 within a certain period of time (about several seconds), it is determined that the trolley 22 is not properly moved, 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 narrow, and the shutter 45 is moved from the open position to the closed position when the carriage 22 is connected to the base 11. It is also effective when it is not possible to make it.

The control device 70 further includes a notification means including a notification device 75 for detecting that an error has occurred when the carriage 22 is separated from the base 11, and a notification device control unit 70b (FIG. 9). You may be. For example, when some foreign matter is caught in the shutter 45 and the shutter drive mechanism 46 cannot operate, the alarm control unit 70b receives the fact that an abnormality has occurred from the shutter control unit 70a and operates the alarm 75 ( Error notification). Further, when it is detected by the second detector 72 that the trolley 22 has not been pulled out to the operator side to the predetermined position even if the time measured by the timer 74 reaches the preset predetermined time, the notification is notified. 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 device 1 (and the component mounting method by the component mounting device 1) in the present embodiment, the carriage 22 is connected to the base 11 and the shutter 45 is located in the open position. In this state, the mounting head 31 takes out the component 3 from the component feeder 21 and mounts the component 3 on the substrate 2. Further, in the component mounting device 1 according to the present embodiment, when the carriage 22 is removed from the base 11, the mounting head 31 takes out the component 3 from the parts feeder 21 attached to the base 11, and the base 11 and the base 11 are taken out. Since the shutter 45 closes the opening 44 formed between the safety cover 36 and the safety cover 36 which covers the upper part of the trolley 22, the operator can remove the trolley 22 from the pedestal 11 to the end of the pedestal 11. Even if the hollow portion is formed, there is no possibility that the hand is inserted into the movable region of the mounting head 31 from the hollow portion through the opening 44. Therefore, even when the bogie 22 is separated from the base 11, the operation of the mounting head 31 can be continued while ensuring the safety of the operator.

This embodiment is an example, and it is understood by those skilled in the art that various modifications are possible for the combination of these components and each processing process, and that such modifications are also within the scope of the present invention.

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

1 Parts mounting device 2 Board 3 Parts 11 Base 21 Parts feeder 21p Parts supply port 22 Cart 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 (8)

A mounting head that takes out parts from the parts feeder through an opening formed above the parts supply port of the parts feeder held by the dolly connected to the base and mounts them on the board.
It includes a shutter that is moved between an open position that opens the opening and a closing position that closes the opening.
A component mounting device in which the mounting head takes out a component from the component feeder and mounts the component on a substrate in a state where the carriage is coupled to the base and the shutter is located at the open position. The component mounting device according to claim 1, further comprising a shutter drive mechanism for driving the shutter. The component mounting device 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. Claim that the base and a cover member covering the upper region of the base are further provided, the parts feeder is attached to the base, and the opening is provided between the base and the cover member. The component mounting device according to any one of 1 to 3. The component mounting device according to any one of claims 1 to 4, further comprising a shutter control unit that controls the shutter drive mechanism. The component mounting device according to claim 5, wherein the shutter control unit operates the shutter drive mechanism to move the shutter from the open position to the closed position when the shutter operation button is operated by an operator. The component mounting device according to claim 5, wherein the shutter control unit operates the shutter drive mechanism when the shutter operation button is operated by an operator to move the shutter from the closed position to the open position. A mounting head that takes out parts from the parts feeder and mounts them on the board through an opening formed above the parts supply port of the parts feeder held by the dolly connected to the base, and an open position that opens the opening. A component mounting method using a component mounting device that includes a shutter that is moved to and from a closing position that closes the opening, and the mounting head takes out a component from the component feeder and mounts the component on the substrate. ,
A component mounting method in which the mounting head takes out a component from the parts feeder in a state where the carriage is coupled to the base and the shutter is located at the open position.

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