JP7382555B2 - Component mounting equipment and component mounting method - Google Patents

Description

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

The component mounting apparatus includes a parts feeder that supplies components while being attached to a base, and a mounting head that takes out components from the parts feeder attached to the base and mounts them on a board. The parts feeder is held on a trolley that can be freely coupled to and detached from the base, and by coupling the trolley to the base, the parts feeder can be attached to the base. An opening is formed between the base and a cover member provided over the base, and the mounting head takes out the parts from the parts feeder held by the truck through the opening.

In such a component mounting apparatus, when the cart is removed from the base, a cavity is formed at the end of the base. The cavity communicates with the movable area of the mounting head through an opening. This creates an unsafe situation, such as an operator accidentally touching the moving mounting head. In order to prevent such an unsafe situation, when the cart is removed from the base, the operation of the mounting head is stopped to maintain the safety of the operator. In a component mounting device that can attach carts to one side and the other side of the base, when the cart is removed from one side of the base, the supply of components from the cart on the other side of the base is stopped, and the mounting The operation of the head is also completely stopped (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2012-151332

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

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a component mounting apparatus and a component mounting method that can continue the operation of a mounting head while ensuring the safety of workers.

The component mounting apparatus of the present invention includes: a mounting head that takes out a component from the parts feeder through an opening formed above a component supply port of a parts feeder held by a cart coupled to a base and mounts the component onto a board; a shutter that is moved between an open position that opens an opening and a closed position that closes the opening; at least while the shutter is moved from the open position to the closed position, the mounting head A component is taken out from a parts feeder held by a truck different from the truck and mounted on a board.

The component mounting method of the present invention includes: a mounting head that takes out a component from the parts feeder through an opening formed above a component supply port of a parts feeder held by a cart coupled to a base and mounts the component on a board; Component mounting, comprising a shutter that is moved between an open position that opens an opening and a closed position that closes the opening, in which the mounting head takes out a component from the parts feeder and mounts the component on the board. A component mounting method using an apparatus, wherein at least while the shutter is moved from the open position to the closed position, the mounting head takes out a component from a parts feeder held by a cart different from the cart.

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

(a) Side view (b) Plan view of a component mounting apparatus in an embodiment of the present invention A perspective view of a main part of a component mounting apparatus according to an embodiment of the present invention (a) (b) Partial perspective views of a component mounting apparatus in an embodiment of the present invention (a) Partial perspective view (b) Partial side view of a component mounting apparatus in an embodiment of the present invention (a) Partial perspective view (b) Partial side view of a component mounting apparatus in an embodiment of the present invention (a) Partial perspective view (b) Partial side view of a component mounting apparatus in an embodiment of the present invention (a) Partial perspective view (b) Partial side view of a component mounting apparatus in an embodiment of the present invention (a) Partial perspective view (b) Partial side view of a component mounting apparatus in an embodiment of the present invention A block diagram showing a control system of a component mounting apparatus according to an embodiment of the present invention (a) Side view (b) Plan view of a component mounting apparatus in an embodiment of the present invention A partial perspective view of a component mounting apparatus according to an embodiment of the present 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 represents an embodiment of the present invention. The component mounting apparatus 1 includes a board transport section 12, a component supply section 13, and a component mounting section 14 on a base 11, and repeatedly performs an operation of mounting components 3 on a board 2. For convenience of explanation, the direction in which the board 2 is transported by the board transport unit 12 (arrow A shown in FIG. 1(b) and FIG. 2) is assumed to be the X-axis direction (left-right direction as seen from the operator), and the X-axis direction The direction in the orthogonal horizontal plane (the front-rear direction as seen from the operator) is the Y-axis direction. Further, the vertical direction is the Z-axis direction.

1(a), (b) and FIG. 2, the substrate transport unit 12 has two substrate transport lanes 12L before and after receiving the substrate 2 sent from another device on the upstream process side and transporting it in the X-axis direction. Consists of. The parts supply unit 13 includes one or more parts feeders 21 attached to two locations facing each other in the front-rear direction of the base 11, and a cart 22 that attaches and holds these parts feeders 21 to a feeder base 22a. By connecting or separating the trolley 22 to one side or the other side facing the base 11 in the front-rear direction, the parts feeders 21 held on the trolley 22 can be attached to or removed from the base 11 all at once. I can do it. The parts feeder 21 is made 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 section 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 suction 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 imaging field of view is directed downward. Each board camera 33 moves together with the mounting head 31, and the board transport lane 12L images a mark (not shown) provided on the board 2 positioned at the working position.

Component cameras 34 are provided at positions (two locations) between the parts feeder 21 attached to the base 11 and the board transport section 12. Each component camera 34 has an imaging field of view facing upward, and images the component 3 that the mounting head 31 has suctioned by the suction nozzle 31a from below.

A safety cover 36 (cover member) is provided on the base 11 to cover 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 section 12, the mounting head 31, etc. by opening a portion of the safety cover 36.

In FIGS. 3(a) and 3(b), the front and rear of the base 11 include box parts 41 arranged on both left and right sides, and left and right partition walls 42 arranged in the middle part thereof and extending in the left-right direction in a vertical plane. Thus, a cart insertion portion 43 having a concave shape in plan view is formed. A part of the safety cover 36 (overhanging part 36a) overhangs above each trolley insertion part 43, and a rectangular opening 44 is formed by the overhanging part 36a of the safety cover 36, the left and right box parts 41, and the partition wall 42. has been done. 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 parts feeder 21 held on the feeder base 22a is Positioning with respect to the table 11 is performed. Thereby, the component supply port 21p of each parts feeder 21 is located directly below the opening 44.

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

In FIGS. 4A and 4B, the shutter drive mechanism 46 includes a base member 50 extending in the front-rear direction, a cylinder 51 extending in the front-rear direction on the outside of the base member 50, and a cylinder 51 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 of the cavity inserted into the base 11 on which the partition wall 42 is arranged is defined as the back side, and the side opposite to the back side is defined as the side. The cylinder 51 has an end on the front side supported by a cylinder support member 54 provided on the base member 50, and an end on the rear side supported by a second pin 55 at the front end of the arm member 53. is combined with

Further, 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 extending vertically in a position on the back side of the base member 50, and the second guide groove 57 is provided vertically extending in a position on the near side of the base member 50 relative to the first guide groove 56. It is provided to extend in the direction. The upper end of the second guide groove 57 is bent toward the front side.

In FIG. 4(b), the first link member 58 has a linear shape, and the second pin 61 provided at one end is positioned within the first guide groove 56, and the second pin 61 provided at the other end is located within the first guide groove 56. The third pin 62 is located within the second guide groove 57. The lower end portion of the shutter 45 in 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, and a fourth pin 63 provided at the lower end is coupled to the rear end of the arm member 53, and a fourth pin 63 provided at the upper end is connected to the rear end of the arm member 53. A fifth pin 64 is coupled to an intermediate portion of the first link member 58. The third link member 60 has one end connected to a sixth pin 65 provided on the base member 50, and a long hole 66 provided on the other end includes a sixth pin 65 provided at the intermediate portion of the arm member 53. 7 pin 67 is located.

When the cylinder 51 extends from the state where the shutter 45 is in the open position (FIGS. 4(a) and 4(b)), the arm member 53 swings around the first pin 52. The first link member 58 is pushed up. At this time, the second pin 61 provided at one end of the first link member 58 moves up along the first guide groove 56, and the third pin 62 provided at the other end moves up along the second guide groove 57. (Fig. 4(a), (b), Fig. 5(a), (b)). The 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, so that the first link member 58 is moved by the expansion of the cylinder 51. When the shutter 45 further rises, the entire shutter 45 swings toward the front (Figs. 5(a), (b), Figs. 6(a), (b), Figs. 7(a), (b)). )) Finally, the shutter 45 takes 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 a path opposite to that when the cylinder 51 is extended and is located in the open position.

In this embodiment, the shutter 45 is made of a plate-like member, and is in a substantially horizontal position in the closed position and in a substantially vertical position in the open position, so that the movement range of the shutter 45 can be limited to a narrow area, 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, parts feeder 21, head moving mechanism 32, and nozzle operating mechanism 31G in order to mount and transport the components 3 on the board 2. Further, the control device 70 includes a shutter control section 70a that controls driving of each of the shutters 45 provided oppositely at 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 the front and rear positions of the base 11. In FIG. These first detectors 71 detect the state in which the truck 22 is coupled to the base 11 by fitting into the protrusion 22b provided on the truck 22. The detection signal of 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 cart 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 of the box portion 41 that is in contact with the cart 22. In FIG. In this embodiment, the second detector 72 detects coupling and detachment by turning on/off a mechanical switch such as a microswitch. The second detector 72 is turned on when the truck 22 contacts and presses the actuator portion 72a of the second detector 72, and detects the coupling of the truck 22. Further, the second detector 72 is switched off when the actuator portion of the second detector 72 that is being pressed leaves, and detects the detachment of the cart 22.

In FIG. 9, shutter operation buttons 73 are provided at the front and rear of the safety cover 36, respectively. 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 open the shutter 45. It is moved from an open position to a closed position, or from a closed position to an open position.

A series of operations when an operator detaches 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 due to changing the model of the board 2, etc. Explain. The operator operates the shutter operation button 73 on the side corresponding to the parts feeder 21 to be replaced. Thereby, the shutter drive mechanism 46 is operated by the shutter control section 70a, and moves 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 located above the parts feeder 21 suctions the component 3, is closed by the shutter 45 (FIG. 8(a) , (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 trolley 22 from the base 11, attaches the parts feeder 21 that supplies parts 3 after model switching to the feeder base 22a, and then couples the trolley 22 to the base 11 again. During this operation, the opening 44 is closed by the shutter 45 (FIG. 11). Therefore, even if a cavity is formed at the end of the base 11 after the carriage insertion part 43 by removing the carriage 22 from the base 11, the operator can pass the mounting head through the opening 44 from the cavity. There is no risk of inserting your hand into the movable area of 31.

When the trolley 22 is reconnected to the base 11, the parts feeder 21 corresponding to the part 3 after model switching is set within the movable area of the mounting head 31. After coupling the trolley 22 to the base 11, the operator operates the shutter operation button 73. As a result, the shutter control section 70a operates the shutter drive mechanism 46, and moves the shutter 45 from the closed position to the open position. As a result, the opening 44 becomes open, 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 cart 22 is removed from the base 11 as described above. Therefore, even if the cart 22 connected to one side of the base 11 in the front-rear direction is detached from the base 11, it will not be attached to the cart 22 connected 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 which takes out the parts 3 supplied by the parts feeder 21 and mounts them on the board 2.

In this way, in the component mounting apparatus 1 according to the present embodiment, the mounting head 31 moves the components from the parts feeder 21 in a state in which the carriage 22 is coupled to the base 11 and in a state in which the shutter 45 is located at the open position. 3 is taken out and attached to the board 2. In addition, in the component mounting method of mounting the component 3 on the board 2 using the component mounting apparatus 1, the mounting head 31 takes out the parts 3 from the parts feeder 21.

Next, a modification 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 trolley 22 may be linked to maintain a safe state. Hereinafter, description of configurations that overlap with this embodiment will be omitted.

First, a series of operations for removing one side or the other side of the cart 22 from the base 11 will be explained. The operator moves the trolley 22 coupled to the base 11 in the detachment direction to separate the trolley 22 from the base 11. When the first detector 71 detects that the cart 22 is detached from the base 11, the shutter control section 70a operates 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 cart 22 from the base 11.

Here, the opening 44 remains open while the shutter 45 completes its movement to the closed position. That is, if the carriage 22 is completely removed from the base 11 before the shutter 45 completes its movement to the closed position, there is a risk that the operator may insert his/her hand 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 and the movement of the trolley 22. The shutter control of the control device 70 will be explained below.

The control device 70 changes from a safe state to an unsafe state when the first detector 71 detects detachment of the trolley 22, and changes from the unsafe state to a safe state when the first detector 71 detects the coupling of the trolley 22. Transition. The control device 70 detects that the shutter 45 has moved to the closed position or the open position. Furthermore, the control device 70 includes a timer 74 (FIG. 9) for maintaining the 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 detachment of the cart 22. The timer 74 starts measuring after the first detector 71 detects the separation of the cart 22 from the base 11. The control device 70 is maintained in a safe state for a certain period of time (about several seconds) after the timer 74 starts measuring. Note that the control device 70 operates the mounting head 31 in a safe state, and stops the mounting head 31 in an unsafe state.

When the first detector 71 detects detachment of the trolley 22, the control device 70 operates a timer 74 to maintain a safe state. Then, the control device 70 continues to maintain the safe state when the shutter 45 completes movement from the open position to the closed position within a certain period of time (approximately several seconds) after the timer 74 starts measuring. In this way, by controlling the control device 70 to maintain the safe state even while the cart 22 is detached, there is no risk of inserting a hand into the movable area of the mounting head 31 through the opening 44, thereby making it easier. A safe state can be ensured. Note that if the shutter 45 has not completed moving from the open position to the closed position 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 state changes to an unsafe state and the operation of the mounting head 31 is stopped.

Next, a procedure for coupling the detached cart 22 on one side or the other side to the base 11 will be explained. The control device 70 maintains the safe state when the second detector 72 detects that the cart 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, there is no risk that the operator will insert his/her hand into the movable region of the mounting head 31 through the opening 44 due to the carriage 22. Therefore, the control device 70 continues to maintain a safe state and is coupled to the trolley 22 by the operator, and the first detector 71 is coupled to the trolley 22. In this manner, the control device 70 controls the carriage 22 to maintain a safe state even while it is coupled to the base 11, thereby allowing the mounting head 31 to continue operating.

Note that, using the timer 74, if the shutter 45 has not completely moved from the closed position to the open position within a certain period of time (approximately several seconds), the control device 70 stops moving the shutter 45 because the shutter 45 has not moved. It is determined that a problem has occurred. Then, the control device 70 transits from the safe state to the unsafe state and stops the operation of the mounting head 31. Also, if the first detector 71 is not connected to the trolley 22 within a certain period of time (approximately several seconds), it is determined that the trolley 22 is not moving properly, and the state changes from a safe state to an unsafe state. Alternatively, the operation of the mounting head 31 may be stopped. Further, in such a configuration, the distance between the cart 22 attached to the base 11 and the base 11 is narrow, and when the cart 22 is connected to the base 11, the shutter 45 cannot be moved from the open position to the closed position. It is also effective in cases where it is not possible to

The control device 70 further includes a notification means that includes a notification device 75 and a notification device control section 70b (FIG. 9) that detects that some kind of error has occurred when the cart 22 is separated from the base 11. You can leave it there. For example, if some foreign object is caught in the shutter 45 and the shutter drive mechanism 46 cannot operate, the alarm control section 70b receives a notification from the shutter control section 70a that an abnormality has occurred, and activates the alarm 75 ( error notification). In addition, when the second detector 72 detects that the trolley 22 has not been pulled out to the worker's side to a predetermined position even though the time measured by the timer 74 reaches a preset predetermined time, an alarm is issued. The device control unit 70b receives the notification that an abnormality has occurred, and activates the alarm 75 (error notification).

As explained above, in the component mounting apparatus 1 (and the component mounting method by the component mounting apparatus 1) according to the present embodiment, the cart 22 is coupled to the base 11 and the shutter 45 is located at the open position. In this state, the mounting head 31 takes out the parts 3 from the parts feeder 21 and mounts them on the board 2. Further, in the component mounting apparatus 1 according to the present embodiment, when the cart 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 1 Since the shutter 45 closes the opening 44 formed between the opening 44 and the safety cover 36 provided to cover the upper part, the operator can move the cart 22 away from the base 11 and move it to the end of the base 11. Even if a cavity is formed, there is no risk of inserting a hand into the movable region of the mounting head 31 through the opening 44 from the cavity. Therefore, even if the cart 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 those skilled in the art will understand that various modifications can be made to the combinations of these components and processing processes, and that such modifications are also within the scope of the present invention.

To provide a component mounting device and a component mounting method that can continue the operation of a mounting head while ensuring the safety of workers.

1 Component mounting device 2 Board 3 Component 11 Base 21 Parts feeder 21p Component supply port 22 Dolly 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 takes out a component from the parts feeder through an opening formed above a component supply port of a parts feeder held by a cart coupled to a base and mounts it on a board;
comprising a shutter that is moved between an open position for opening the opening and a closed position for closing the opening;
At least while the shutter is moved from the open position to the closed position, the mounting head takes out a component from a parts feeder held by a truck different from the truck and mounts it on a board. The component mounting apparatus according to claim 1, further comprising a shutter drive mechanism that drives the shutter. The component mounting apparatus according to claim 2, further comprising a shutter control section that controls the shutter drive 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 a worker. 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 a worker. 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. 2. The base further comprises a cover member that covers the base and an upper area of the base, the parts feeder is attached to the base, and the opening is provided between the base and the cover member. 7. The component mounting device according to any one of 1 to 6. a mounting head that takes out a component from the parts feeder through an opening formed above a component supply port of a parts feeder held by a trolley connected to a base and mounts it on a board; and an open position that opens the opening. a shutter that is moved between a shutter that closes the opening and a closed position, and the mounting head takes out a component from the parts feeder and mounts the component on the board, ,
At least while the shutter is moved from the open position to the closed position, the mounting head takes out a component from a parts feeder held by a truck different from the truck.

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