JP6689658B2 - Component mounting device and head unit for component mounting device - Google Patents

Description

  The present invention relates to a component mounting apparatus and a head unit for a component mounting apparatus, and particularly to a component mounting apparatus including a plurality of holding heads and a head unit for a component mounting apparatus.

  Conventionally, a component mounting apparatus including a plurality of holding heads is known (for example, refer to Patent Document 1).

  Patent Literature 1 discloses an electronic component mounting apparatus (component mounting apparatus) including a mounting head (head unit) having a plurality of nozzles (holding heads). Each nozzle is configured to move up and down by a linear motor. Also, each nozzle has the same stroke length. Therefore, in this electronic component mounting apparatus, it is considered that each nozzle is configured to be compatible with components of different sizes, from large components to small components.

JP, 2013-254785, A

  Here, since the size of the component is different between when the large component is sucked and when the small component is sucked, the stroke length required by the nozzle is different due to the difference in height (thickness). For example, consider the case where a component sucked by a nozzle is transported to a substrate. In this case, a large component requires a large stroke length in order to raise the component to a height position where the component mounted on the substrate and the component attracted to the nozzle do not come into contact with each other during transportation, while the large component requires a large stroke length. Then, it does not require the stroke length as much as when transporting large parts. However, in the electronic component mounting apparatus described in Patent Document 1, all nozzles have the same stroke length, so it is considered that the stroke length of the nozzles may become longer than necessary. Therefore, it is considered that there is a problem that the mounting head (head unit) increases in size and the weight of the mounting head (head unit) increases.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a component mounting apparatus and a head unit for a component mounting apparatus capable of reducing the size and weight of the head unit. Is to provide.

A component mounting apparatus according to a first aspect of the present invention includes a head unit for mounting a component on a substrate, and the head unit includes a first holding head, a second holding head, and a first holding head. A first holding head including a first vertical driving mechanism that drives in the vertical direction and a second vertical driving mechanism that drives the second holding head in the vertical direction and is of the same type as the first vertical driving mechanism. Has a first maximum ascendable / descendable stroke length that is a length from an upper end position in which the first holding head is most raised to a lower end position in which the first holding head is most lowered in the vertical direction . the holding head, closed at the top and bottom direction, from the upper end position where the second holding head is the most elevated, the second maximum elevating stroke length is the length of up to a lower end position where the second holding head is most lowered The first holding head It is configured to hold the component height greater than retained components Ri, the first vertical drive mechanism includes a first driving length corresponding to the first maximum elevating stroke length And the second vertical drive mechanism has a second drive length corresponding to the second maximum liftable stroke length, and the first maximum liftable stroke length is the second maximum liftable stroke length. And the first drive length is less than the second drive length .

In the component mounting apparatus according to the first aspect of the present invention, as described above, the length from the upper end position where the first holding head is most raised to the lower end position where the first holding head is most lowered in the vertical direction . having a first maximum elevating stroke length is. The second holding head, in the up and down direction, from the second holding head most elevated upper end position, the second maximum elevatable second holding head is the length of the up most the lowered end position Has a stroke length. Then, the second holding head is configured to hold a component having a height larger than that of the component held by the first holding head , and the first vertical drive mechanism has the first maximum lifting / lowering stroke length. The second vertical drive mechanism has a corresponding first drive length, and the second vertical drive mechanism has a second drive length corresponding to the second maximum liftable stroke length. The length is smaller than the second maximum liftable stroke length, and the first drive length is smaller than the second drive length . As a result, since the holding head has a stroke length corresponding to the height of the component, unlike the case where all the holding heads have the same stroke length, it is possible to prevent the stroke length of the holding head from becoming unnecessarily large. it can. As a result, the head unit can be reduced in size and weight. Further, the reduction in size and weight of the head unit is also effective in improving the productivity accompanying the improvement in the moving speed of the head unit and reducing the vibration associated with the movement of the head unit.

  In this case, preferably, the first vertical drive mechanism and the second vertical drive mechanism include a linear motor, and the linear motor of the first vertical drive mechanism drives more than the linear motor of the second vertical drive mechanism. The length is small. According to this structure, the linear motor of the first vertical drive mechanism can be reduced in size and weight, and accordingly, the head unit can be reduced in size and weight. Further, by using a small vertical drive mechanism including a linear motor, the head unit can be made smaller and lighter than in the case of using a large vertical drive mechanism having a ball screw mechanism.

  In the component mounting apparatus according to the first aspect, preferably, the head unit includes a plurality of first holding heads and a plurality of second holding heads, a plurality of first holding heads, and a plurality of first holding heads. The two holding heads are arranged so as to be adjacent to each other. According to this structure, when the component is held by the first holding head and the second holding head, the small component and the large component are adjacent to each other, so that the adjacent components are prevented from interfering with each other. be able to. In addition, a large component held by the second holding head may overhang to an adjacent holding head, and the holding head adjacent to the second holding head may become unusable. In this case, in the present configuration, it is possible to prevent the first holding head that sucks a small component from becoming unusable and the second holding head that sucks a large component from becoming unusable. In addition, in a configuration in which the head unit includes the plurality of first holding heads and the plurality of second holding heads, it is possible to effectively reduce the size and weight.

  In this case, preferably, the plurality of first holding heads and the plurality of second holding heads are alternately arranged in rows. According to this structure, it is possible to effectively prevent the adjacent components from interfering with each other and effectively prevent the second holding head that holds the large component from becoming unusable. .

In the configuration in which the plurality of first holding heads and the plurality of second holding heads are arranged adjacent to each other, preferably, the plurality of first holding heads are arranged in a row, The plurality of second holding heads are adjacent to the plurality of first holding heads arranged in a row in a direction orthogonal to the arrangement direction of the plurality of first holding heads arranged in a row, They are arranged in rows. Even with such a configuration, it is possible to effectively prevent interference between adjacent components and effectively prevent the second holding head that holds a large component from becoming unusable. it can. Further, in this configuration, since the plurality of first holding heads and the plurality of second holding heads are arranged in a plurality of rows, the plurality of first holding heads and the plurality of second holding heads are arranged in a row. The length of the column can be reduced as compared with the case where the columns are arranged.

  The component mounting apparatus according to the first aspect preferably further includes an elevating mechanism section that drives the entire head unit in the vertical direction. According to this structure, the first stroke length of the first holding head and the second stroke length of the second holding head can be reduced by the amount of driving the entire head unit in the vertical direction by the lifting mechanism. You can As a result, the head unit can be effectively reduced in size and weight.

  In this case, it is preferable to further include a control unit that controls the descending amount of the entire head unit by the elevating mechanism unit according to the height of the held component. According to this structure, since the descending amount of the entire head unit by the elevating mechanism is controlled according to the height of the held component, the descending amount of the head unit is insufficient and the descending amount of the head unit is reduced. It is possible to prevent the size from becoming excessively large. As a result, the component can be reliably held regardless of which of the first holding head and the second holding head is used.

A component mounting apparatus head unit according to a second aspect of the present invention includes a first holding head, a second holding head, a first vertical drive mechanism for driving the first holding head in the vertical direction, and The second holding head is driven in the vertical direction, and is provided with the second vertical driving mechanism of the same type as the first vertical driving mechanism . The first holding head is the highest in the vertical direction . from the upper end position, has a first maximum elevating stroke length is the length of up to a lower end position where the first holding head is most lowered, the second holding head in up and down direction, the second holding It has a second maximum ascendable / descendable stroke length which is a length from the uppermost position where the head is most raised to the lowermost position where the second holding head is most lowered, and is larger than the component held by the first holding head Holds large parts Is composed urchin, the first vertical drive mechanism includes a first driving length corresponding to the first maximum elevating stroke length, the second vertical drive mechanism, the second maximum elevatable A second drive length corresponding to the stroke length, the first maximum liftable stroke length is smaller than the second maximum liftable stroke length, and the first drive length is the second drive length. Smaller than .

In the component mounting apparatus head unit according to the second aspect of the present invention, as described above, the first holding head is the first holding head in the vertical direction from the uppermost position where the first holding head is most raised. Has a first maximum ascending / descending stroke length that is the length to the lowermost position in which it is most lowered . The second holding head, in the up and down direction, from the second holding head most elevated upper end position, the second maximum elevatable second holding head is the length of the up most the lowered end position Has a stroke length. Then, the second holding head is configured to hold a component having a height larger than that of the component held by the first holding head , and the first vertical drive mechanism has the first maximum lifting / lowering stroke length. The second vertical drive mechanism has a corresponding first drive length, and the second vertical drive mechanism has a second drive length corresponding to the second maximum liftable stroke length. The length is smaller than the second maximum liftable stroke length, and the first drive length is smaller than the second drive length . As a result, the head unit can be made smaller and lighter as in the case of the component mounting apparatus according to the first aspect.

  According to the present invention, as described above, it is possible to provide a component mounting apparatus and a head unit for a component mounting apparatus that can reduce the size and weight of the head unit.

It is a top view showing the whole component mounting device composition by the 1st-3rd embodiment of the present invention. It is a perspective view showing a head unit of the component mounting apparatus of the first embodiment. It is a front view which shows the head unit of the component mounting apparatus of 1st Embodiment. It is a figure for demonstrating the stroke length of the suction head for large components and the suction head for small components of the component mounting apparatus of 1st Embodiment. It is a front view which shows the head unit of the component mounting apparatus of 2nd Embodiment. It is a side view which shows the head unit of the component mounting apparatus of 2nd Embodiment. It is a figure for demonstrating the stroke length of the suction head for large components and the suction head for small components of the component mounting apparatus of 2nd Embodiment. It is a perspective view which shows the head unit of the component mounting apparatus of 3rd Embodiment. It is a side view which shows the head unit of the component mounting apparatus of 3rd Embodiment.

  Embodiments embodying the present invention will be described below with reference to the drawings.

[First Embodiment]
(Structure of component mounting device)
First, the configuration of the component mounting apparatus 100 according to the first embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 1, the component mounting apparatus 100 is a device for mounting a component E (electronic component) such as an IC, a transistor, a capacitor and a resistor on a substrate P such as a printed board.

  In addition, the component mounting apparatus 100 includes a base 1, a substrate transport unit 2, a head unit 3, a support unit 4, a rail unit 5, a component recognition lower camera 6, a substrate recognition camera 7, and a component recognition side. A direction camera 8 and a control unit 9 are provided. The head unit 3 is an example of the "head unit for component mounting apparatus" in the claims.

  At both ends (Y1 side and Y2 side) of the base 1 in the Y direction, feeder placement portions 1a for placing a plurality of tape feeders 10 are provided, respectively.

  The tape feeder 10 holds a reel (not shown) around which a component supply tape holding a plurality of components E at predetermined intervals is wound. The tape feeder 10 is configured to supply the component E by rotating a reel and feeding a component supply tape that holds the component E.

  Each tape feeder 10 is arranged in the feeder arrangement portion 1a in a state of being electrically connected to the control portion 9 via a connector (not shown) provided in the feeder arrangement portion 1a. As a result, each tape feeder 10 is configured to send the component supply tape from the reel and supply the component E based on the control signal from the control unit 9. At this time, each tape feeder 10 is configured to supply the component E in accordance with the suction operation for taking out the component E by the head unit 3.

  The board | substrate conveyance part 2 has a pair of conveyors 2a. The substrate transport unit 2 is configured to transport the substrate P in the horizontal direction (X direction) by the pair of conveyors 2a. Specifically, the board transport unit 2 carries in the board P before mounting from a transport path (not shown) on the upstream side (X1 side), transports the carried board P to the mounting work position M, and transfers it to the downstream side ( The substrate P, which has been mounted, is unloaded onto a transport path (not shown) on the X2 side). The board transport unit 2 is configured to hold and fix the board P stopped at the mounting work position M by a board fixing mechanism (not shown) such as a clamp mechanism.

  The pair of conveyors 2a of the substrate transport unit 2 are configured to transport the substrate P in the horizontal direction (X direction) while supporting the substrate P from below. Further, the pair of conveyors 2a is configured so that the interval in the Y direction can be adjusted. This makes it possible to adjust the distance between the pair of conveyors 2a in the Y direction according to the size of the substrate P to be loaded.

  The head unit 3 is provided at a position above the substrate transport unit 2 and the tape feeder 10, and is movable in the horizontal direction (X direction and Y direction) via the support unit 4 and the pair of rail units 5. It is configured. Further, the head unit 3 is configured to suck (hold) the component E supplied from the tape feeder 10 and mount the sucked component E on the substrate P fixed at the mounting work position M. The detailed configuration of the head unit 3 will be described later.

  Further, the head unit 3 is configured to be movable in the X direction along the support portion 4. Specifically, the support portion 4 includes a ball screw shaft 41, an X-axis motor 42 that rotates the ball screw shaft 41, and a guide rail (not shown) that extends in the X direction. Further, the head unit 3 is provided with a ball nut 3a that engages with the ball screw shaft 41. The head unit 3 is configured to be movable in the X direction along the support portion 4 together with the ball nut 3a engaged (screwed) with the ball screw shaft 41 when the ball screw shaft 41 is rotated by the X axis motor 42. ing.

  Further, the support portion 4 is configured to be movable along the pair of rail portions 5 fixed on the base 1 in the Y direction orthogonal to the X direction. Specifically, the rail portion 5 rotates the pair of guide rails 51 that movably support both ends of the support portion 4 in the X direction in the Y direction, the ball screw shaft 52 extending in the Y direction, and the ball screw shaft 52. It includes a Y-axis motor 53. Further, the support portion 4 is provided with a ball nut 43 with which a ball screw shaft 52 is engaged (screwed). The support portion 4 is movable in the Y direction along the pair of rail portions 5 together with the ball nut 43 engaged (screwed) with the ball screw shaft 52 when the ball screw shaft 52 is rotated by the Y-axis motor 53. It is configured.

  With such a configuration, the head unit 3 is configured to be movable on the base 1 in the horizontal direction (X direction and Y direction). As a result, the head unit 3 can move above the tape feeder 10 and suck the component E supplied from the tape feeder 10. The head unit 3 can move above the substrate P fixed at the mounting work position M to mount the sucked component E on the substrate P, for example. Further, the head unit 3 can be moved, for example, above the component recognition lower camera 6 so that the sucked component E can be imaged by the component recognition lower camera 6.

  The component recognition lower camera 6 is configured to capture an image of the component E sucked by the head unit 3 prior to mounting the component E. The component recognition lower camera 6 is fixed on the upper surface of the base 1, and is configured to capture an image of the component E sucked by the head unit 3 from below the component E (Z2 direction). The imaging result is acquired by the control unit 9. Then, the control unit 9 acquires the suction state (rotational posture and suction position) of the component E based on the acquired imaging result of the component E.

  The board recognition camera 7 is configured to capture an image of a position recognition mark (fiducial mark) FM attached to the board P prior to mounting the component E. The position recognition mark FM is a mark for acquiring the position of the substrate P. In the substrate P shown in FIG. 1, a pair of position recognition marks FM is attached to the lower right position and the upper left position of the substrate P. The imaging result of the position recognition mark FM is acquired by the control unit 9. Then, the control unit 9 obtains the accurate position and posture of the substrate P fixed by the substrate fixing mechanism (not shown) based on the obtained imaging result of the position recognition mark FM.

  The board recognition camera 7 is attached to the side of the head unit 3 on the X2 side, and is configured to be movable in the horizontal direction (X direction and Y direction) on the base 1 together with the head unit 3. . Further, the board recognition camera 7 is configured to move on the base 1 in the X direction and the Y direction, and image the position recognition mark FM attached to the board P from above the board P (Z1 direction). ing.

  The component recognition side camera 8 is configured to capture an image of the component E sucked by the head unit 3 prior to mounting the component E. The component recognition side camera 8 is attached to the side portion of the head unit 3 on the Y2 side, and is configured to image the component E adsorbed by the head 32 from the side (Y2 direction) of the component E. There is. The imaging result is acquired by the control unit 9. Then, the control unit 9 acquires the height (thickness) and the posture of the component E based on the acquired imaging result of the component E. Further, the component recognition side camera 8 is configured to be movable in the horizontal direction (X direction and Y direction) on the base 1 together with the head unit 3.

  The control unit 9 includes a CPU (Central Processing Unit) and is configured to control the operation of the component mounting apparatus 100. The control unit 9 controls the substrate transfer unit 2, the X-axis motor 42, the Y-axis motor 53, a linear motor 70, a rotary drive mechanism 80, and the like, which will be described later, according to a production program to suck the component E supplied from the tape feeder 10. And the component E is mounted on the board P.

(Structure of head unit)
Next, the configuration of the head unit 3 will be described with reference to FIGS. As shown in FIGS. 2 and 3, the head unit 3 includes 10 suction heads 60, 10 linear motors 70, and a rotary drive mechanism 80.

  Each suction head 60 is configured to hold the component E supplied from the tape feeder 10 by suction. Here, in the first embodiment, the ten suction heads 60 include five small component-compatible suction heads 61 and five large component-compatible suction heads 62. The suction head 61 for small components is an example of the "first holding head" in the claims. Further, the suction head 62 for large parts is an example of the "second holding head" in the claims.

As shown in FIG. 4, each small component compatible suction head 61 has a vertical stroke length D1. The stroke length D1 is a length from the upper end position H1 where the small component corresponding suction head 61 is most raised to the lower end position H2 where the small component corresponding suction head 61 is most lowered. That is, each small component compatible suction head 61 is configured to be vertically movable from the upper end position H1 to the lower end position H2. In the first embodiment, the stroke length D1 of the suction head 61 for small components is smaller than the stroke length D2 of the suction head 62 for large components described later. The stroke length D1 is an example of the "first maximum liftable stroke length" in the claims.

  As shown in FIG. 3, the suction head 61 for each small component is configured to suck the small component E1 having a small height (thickness). That is, in the component mounting apparatus 100, the suction head 61 corresponding to each small component is in charge of suctioning the small component E1. On the other hand, in the component mounting apparatus 100, the suction heads 61 for small components do not take charge of suction of a large component E2 described later.

  Each small component compatible suction head 61 has a shaft portion 61a and a suction nozzle 61b. The shaft portion 61a is formed so as to extend in the vertical direction. An upper end (Z1 side) of the shaft 61a is connected to a linear motor 71 described later. Further, the shaft portion 61a is provided with a suction nozzle 61b at the lower (Z2 side) end portion. In the component mounting apparatus 100, a negative pressure is supplied to the suction nozzle 61b by a vacuum generator (not shown). The suction head 61 for each small component is configured to be capable of sucking the small component E1 by the negative pressure supplied to the suction nozzle 61b.

As shown in FIG. 4, each large component compatible suction head 62 has a vertical stroke length D2. The stroke length D2 is a length from the upper end position H3 where the large-sized component suction head 62 is most raised to the lower end position H4 where the large-component suction head 62 is most lowered. That is, each of the large-size component-compatible suction heads 62 is configured to be vertically movable from the upper end position H3 to the lower end position H4. The stroke length D2 is an example of the "second maximum liftable stroke length" in the claims.

  As shown in FIG. 3, the large-sized component-compatible suction head 62 is configured to suck a large-sized component E2 having a height (thickness) larger than that of the small-sized component E1. The suction heads 62 corresponding to the large components are configured to suck the small components E1 in addition to the large components E2. That is, in the component mounting apparatus 100, each large component compatible suction head 62 is in charge of suction of both the small component E1 and the large component E2.

  Each large-size component-compatible suction head 62 has a shaft portion 62a and a suction nozzle 62b. The shaft portion 62a is formed so as to extend in the vertical direction. An upper end (Z1 side) of the shaft portion 62a is connected to a linear motor 72 described later. In addition, the shaft portion 62a is provided with a suction nozzle 62b at the lower (Z2 side) end portion. In the component mounting apparatus 100, a vacuum generator (not shown) supplies a negative pressure to the suction nozzle 62b. Each large component compatible suction head 62 is configured to be capable of sucking the small component E1 or the large component E2 by the negative pressure supplied to the suction nozzle 62b.

  In the component mounting apparatus 100, the upper end position H1 of each small component compatible suction head 61 and the upper end position H3 of each large component compatible suction head 62 are at different height positions. Specifically, the upper end position H3 of the suction head 62 for each large component is higher than the upper end position H1 of the suction head 61 for each small component by ΔD1. That is, in the component mounting apparatus 100, the suction head 62 for the large component can raise the upper end of the component E to a higher position than the suction head 61 for the small component.

  As a result, the suction head 62 corresponding to the large component elevates the large component E2 to a height position where the component E mounted on the substrate P and the large component E2 being conveyed do not come into contact with each other when the large component E2 is conveyed. It is possible to Further, for example, even when the height position at which the component recognition side camera 8 images the component E is high, the large-sized component E2 can be moved up to the height position at which the component recognition side camera 8 images the component E. It is possible. Therefore, in the component mounting apparatus 100, the large component compatible suction head 62 is in charge of both suction of the large component E2 and suction of the small component E1 smaller than the large component E2.

  On the other hand, in the component mounting apparatus 100, when the small component-compatible suction head 61 takes charge of suction of the large component E2, for example, the height position at which the component E mounted on the substrate P and the large component E2 being conveyed do not contact each other. Up to this, there arises a disadvantage that the large component E2 cannot be lifted or the large component E2 cannot be lifted to a height position where the component recognition side camera 8 images the component E. Therefore, in the component mounting apparatus 100, the small component compatible suction head 61 is in charge of suction of the small component E1 but not of the large component E2. In the first embodiment, the stroke length D1 of the small component-compatible suction head 61 is changed to the stroke length D1 of the small component-compatible suction head 61 by the stroke length that is no longer required because the small-size component-compatible suction head 61 is not in charge of suction of the large component E2. It is possible to make the stroke length D2 smaller than the stroke length D2.

  Further, in the component mounting apparatus 100, the lower end position H2 of each small component compatible suction head 61 and the lower end position H4 of each large component compatible suction head 62 are at the same height position. That is, the small component compatible suction head 61 and the large component compatible suction head 62 can lower the component E to the same height position. Since the height of the small component E1 is smaller than that of the large component E2 when the small component E1 is mounted, since the small component corresponding suction head 61 is lowered, the large component compatible suction head 62 is lowered when the large component E2 is mounted. Lower than the position.

  Further, in the first embodiment, as shown in FIGS. 2 and 3, the five small component compatible suction heads 61 and the five large component compatible suction heads 62 are arranged so as to be adjacent to each other. . Specifically, the five small component-compatible suction heads 61 and the five large component-compatible suction heads 62 are arranged alternately in rows. Further, the five small component-compatible suction heads 61 and the five large component-compatible suction heads 62 are arranged in a row at equal distance intervals.

  The ten linear motors 70 are provided so as to correspond to the ten suction heads 60, respectively. Each linear motor 70 is configured to drive the corresponding suction head 60 in the vertical direction.

  Further, in the first embodiment, the ten linear motors 70 correspond to the five linear motors 71 corresponding to the respective five small component-compatible suction heads 61 and the respective five large component-compatible suction heads 62. And five linear motors 72 that operate. The linear motor 71 and the linear motor 72 are vertical drive mechanisms of the same type. The linear motor 71 is an example of the "first vertical drive mechanism" in the claims. The linear motor 72 is an example of the "second vertical drive mechanism" in the claims.

  Each linear motor 71 has a drive length corresponding to the stroke length D1 of the suction head 61 for small parts. The linear motor 71 has a stroke length D1 and is configured to be capable of driving the suction head 61 for small components in the vertical direction.

  Each linear motor 72 has a drive length corresponding to the stroke length D2 of the suction head 62 for large parts. That is, in the first embodiment, each linear motor 71 has a smaller drive length than each linear motor 72. Each linear motor 71 is smaller than each linear motor 72 because the driving length is small. The linear motor 72 has a stroke length of D2 and is configured to be capable of driving the large-sized component-compatible suction head 62 in the vertical direction.

  The rotation drive mechanism 80 is configured to rotate each suction head 60 around the vertical direction (Z direction).

  The rotary drive mechanism 80 includes a first rotary drive mechanism 81 that rotates the five suction heads 60 on the X2 side and a second rotary drive mechanism 82 that rotates the five suction heads 60 on the X1 side. The five suction heads 60 on the X2 side include two small component-compatible suction heads 61 and three large component-compatible suction heads 62. The five suction heads 60 on the X1 side include three suction heads 61 for small components and two suction heads 62 for large components.

  The first rotation drive mechanism 81 has a drive motor 81a and a belt pulley mechanism 81b. The drive motor 81a is configured to generate a drive force for rotating the five suction heads 60 on the X2 side. The belt pulley mechanism 81b is configured to transmit the driving force generated by the drive motor 81a to the five suction heads 60 on the X2 side. The five suction heads 60 on the X2 side are configured to rotate in the vertical direction by the driving force of the drive motor 81a transmitted via the belt pulley mechanism 81b.

  The second rotation drive mechanism 82 has a drive motor 82a and a belt pulley mechanism 82b. The drive motor 82a is configured to generate a drive force for rotating the five suction heads 60 on the X1 side. The belt pulley mechanism 82b is configured to transmit the driving force generated by the driving motor 82a to the five suction heads 60 on the X1 side. The five suction heads 60 on the X1 side are configured to rotate in the vertical direction by the driving force of the drive motor 82a transmitted via the belt pulley mechanism 82b.

(Effects of the first embodiment)
In the first embodiment, the following effects can be obtained.

  In the first embodiment, as described above, the small component compatible suction head 61 has the vertical stroke length D1. The suction head 62 for large parts has a vertical stroke length D2 different from the stroke length D1. Then, the large component corresponding suction head 62 is configured to suck a component (large component E2) having a height higher than the component sucked (held) by the small component corresponding suction head 61. Accordingly, since the suction head 60 has a stroke length corresponding to the size of the component, unlike the case where all the suction heads 60 have the same stroke length, it is possible to prevent the stroke length of the suction heads 60 from unnecessarily increasing. can do. As a result, the head unit 3 can be reduced in size and weight. Further, the reduction in size and weight of the head unit 3 is also effective in improving the productivity accompanying the improvement in the moving speed of the head unit 3 and reducing the vibration associated with the movement of the head unit 3.

  In addition, in the first embodiment, as described above, the stroke length D1 is smaller than the stroke length D2. As a result, it is possible to prevent the stroke length of the suction head 61 for small components from becoming unnecessarily large, and the head unit 3 can be made smaller and lighter by that amount. Further, since the stroke length D2 can be made larger than the stroke length D1, it is possible to move a large component (large component E2) having a large height in the vertical direction by a large amount in the vertical direction. As a result, a larger component (large component E2) can be easily handled by the suction component 62 for large components.

  Further, in the first embodiment, as described above, the linear motor 71 has a smaller drive length than the linear motor 72. As a result, the linear motor 71 can be reduced in size and weight, and accordingly, the head unit 3 can be reduced in size and weight. Further, by using a small vertical drive mechanism including the linear motor 70, the head unit 3 can be made smaller and lighter than when a large vertical drive mechanism having a ball screw mechanism is used.

  In addition, in the first embodiment, as described above, the plurality (five) of small component compatible suction heads 61 and the plurality (five) of large component compatible suction heads 62 are arranged so as to be adjacent to each other. Accordingly, when the small component E1 is sucked by the small component suction head 61 and the large component E2 is sucked by the large component suction head 62, the small component E1 and the large component E2 are adjacent to each other, and thus are adjacent to each other. It is possible to prevent the parts from interfering with each other. Further, in the configuration in which the head unit 3 includes the plurality of small component compatible suction heads 61 and the plurality of large component compatible suction heads 62, it is possible to effectively reduce the size and weight.

  Further, in the first embodiment, as described above, the plurality of small component compatible suction heads 61 and the plurality of large component compatible suction heads 62 are arranged alternately in rows. As a result, it is possible to effectively prevent the adjacent components from interfering with each other.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIG. 1 and FIGS. 5 to 7. In the second embodiment, an example will be described in which, in addition to the configuration of the first embodiment, an elevating mechanism section that drives the entire head unit in the vertical direction is provided. In addition, about the same structure as the said 1st Embodiment, the same code | symbol is attached | subjected and shown in figure in the figure, and the description is abbreviate | omitted.

(Structure of component mounting device)
As shown in FIGS. 1, 5 and 6, the component mounting apparatus 200 according to the second exemplary embodiment of the present invention includes the head unit 103, a control unit 109, and an elevating mechanism unit 190. It is different from the component mounting apparatus 100 of the embodiment. The head unit 103 is an example of the "head unit for component mounting apparatus" in the claims.

  In the second embodiment, the component mounting apparatus 200 is provided with an elevating mechanism section 190 as shown in FIGS. 5 and 6. The elevating mechanism section 190 is configured to drive the entire head unit 103 in the vertical direction.

  The head unit 103 has a vertical stroke length D3, as shown in FIG. The stroke length D3 is a length from the upper end position H5 where the head unit 103 is most raised to the lower end position H6 where the head unit 103 is most lowered. That is, the head unit 103 is configured to be vertically movable by the elevating mechanism portion 190 from the upper end position H5 to the lower end position H6.

  In the second embodiment, since the head unit 103 has a stroke length D3 and is driven in the vertical direction, the stroke length D4 of the small component compatible suction head 161 described later and the stroke length D5 of the large component compatible suction head 162 described later are reduced. It becomes possible to do. The suction head 161 for small components is an example of the "first holding head" in the claims. Further, the suction head 162 for large parts is an example of the "second holding head" in the claims. Further, in the second embodiment, the stroke length D3 is larger than the stroke length D4 of the small component compatible suction head 161 and the stroke length D5 of the large component compatible suction head 162. This makes it possible to sufficiently reduce the stroke length D4 of the suction head 161 for small components and the stroke length D5 of the suction head 162 for large components.

  In the second embodiment, since the stroke length D4 of the small component compatible suction head 161 and the stroke length D5 of the large component compatible suction head 162 are reduced, the stroke length D3 of the head unit 103 causes the small component compatible suction head 161 to be reduced. The amount of vertical movement with the suction head 162 for large parts is secured. As a result, for example, when the component E is conveyed by the small component compatible suction head 161 and the large component compatible suction head 162, the component E mounted on the substrate P does not come into contact with the component E that is being transported until a height position at which the component E is conveyed. It is possible to raise E. Further, for example, even when the height position at which the component recognition side camera 8 images the component E is high, the suction head 161 and the large component-compatible suction head 161 up to the height position at which the component recognition side camera 8 images the component E. It is possible to raise the component E sucked by the component-corresponding suction head 162. In addition, the linear motor 71 and the linear motor 72 of the second embodiment are the linear motor 71 and the linear motor 72 of the above-described first embodiment by the amount that the stroke length of the suction head 161 for small components and the suction head 162 for large components is reduced. It is smaller than.

  The lifting mechanism 190 has a drive length corresponding to the stroke length D3 of the head unit 103. The lifting mechanism 190 has a stroke length D3 and is configured to be capable of driving the head unit 103 in the vertical direction. The elevating mechanism section 190 is a vertical drive mechanism having a ball screw mechanism. It is possible to easily drive the heavy head unit 103 in the vertical direction by using the vertical drive mechanism (elevating mechanism unit 190) having the ball screw mechanism.

  As shown in FIGS. 5 and 6, the lifting mechanism 190 has a drive motor 191, a ball screw shaft 192, and a pair of rails 193.

  The drive motor 191 is configured to generate a driving force for rotating the ball screw shaft 192. The ball screw shaft 192 is configured to rotate in the vertical direction (Z direction) by the driving force of the drive motor 191. The pair of rail portions 193 are formed so as to extend in the vertical direction. Further, the head unit 103 is provided with a ball nut 103b that engages with the ball screw shaft 192. When the ball screw shaft 192 is rotated by the drive motor 191, the elevating mechanism portion 190 moves the head unit 103 along the pair of rail portions 193 within the range of the stroke length D3 together with the ball nut 103b engaging with the ball screw shaft 192. It is configured to move in the vertical direction.

  In the second embodiment, as shown in FIG. 5, the head unit 103 includes five small component compatible suction heads 161 and five large component compatible suction heads 162.

  In the head unit 103 of the second embodiment, the stroke lengths of the small component compatible suction head 161 and the large component compatible suction head 162 are the same as in the first embodiment described above, because the head unit 103 is vertically driven by the lifting mechanism unit 190 with the stroke length D3. This is different from the head unit 3 of the first embodiment in that the stroke lengths of the suction head 61 for small parts and the suction head 62 for large parts are smaller. Further, the head unit 103 of the second embodiment is the head of the first embodiment in that the upper end position of the small component compatible suction head 161 and the upper position of the large component compatible suction head 162 are at the same height position. Different from unit 3.

As shown in FIG. 7, the suction head 161 for each small component has a vertical stroke length D4. The stroke length D4 is, for example, from the height position H7 where the head unit 103 is the most lowered and the small component compatible suction head 161 is most raised, to the lower end where the head unit 103 is the most lowered and the small component compatible suction head 161 is most lowered. It is the length up to the position H8. In the second embodiment, each small component compatible suction head 161 moves vertically from the upper end position H5 of the head unit 103 (the upper end position of the small component compatible suction head 161) to the lower end position H8 of the small component compatible suction head 161. It is configured to be movable. Further, the stroke length D4 of the suction head 161 for small components is smaller than the stroke length D5 of the suction head 162 for large components described later. The stroke length D4 is an example of the "first maximum liftable stroke length" in the claims.

The suction head 162 for each large component has a vertical stroke length D5. The stroke length D5 is, for example, from a height position H9 at which the head unit 103 is most lowered and the large-sized component suction head 162 is most raised, to a lower end where the head unit 103 is most lowered and the large-component suction head 162 is most lowered. The length is up to the position H10. In the second embodiment, each large component compatible suction head 162 moves vertically from the upper end position H5 of the head unit 103 (the upper end position of the large component compatible suction head 162) to the lower end position H10 of the large component compatible suction head 162. It is configured to be movable. The stroke length D5 is an example of the "second maximum liftable stroke length" in the claims.

  In the second embodiment, the stroke length D5 of the suction head 162 for large parts is larger than the height (thickness) of the large parts E2. As a result, it is possible to take out the large component E2 arranged in the recess of the component supply tape of the tape feeder 10 from the recess only by the upward stroke of the suction head 162 for the large component. Therefore, in the component mounting apparatus 200, the large component compatible suction head 162 handles both the suction of the large component E2 and the suction of the small component E1 smaller than the large component E2.

  Further, in the second embodiment, the stroke length D4 of the suction head 161 for small-sized components is smaller than the height (thickness) of the large-sized component E2. Therefore, it is not possible to take out the large component E2 arranged in the recess of the component supply tape of the tape feeder 10 from the recess only by the upward stroke of the suction head 161 for the small component. Therefore, in the component mounting apparatus 200, the suction head 161 for small-sized components is in charge of sucking the small-sized component E1 but not the large-sized component E2.

  Further, in the component mounting apparatus 200, the upper end position (H5) of each small component compatible suction head 161 and the upper end position (H5) of each large component compatible suction head 162 are at the same height position.

  Here, as shown in FIG. 5, consider a case where a large-sized component E2 having a large width that extends to the adjacent small-component-compatible suction head 161 is handled. In this case, if the upper end position of the suction head 161 for each small component is lower than the upper end position of the suction head 162 for each large component as in the first embodiment, the suction head 162 for the large component is raised to the upper end position. In such a case, the adjacent small component compatible suction head 161 and the large component E2 interfere with each other. For this reason, the large component compatible suction head 162 can be raised only to a height position where the adjacent small component compatible suction head 161 and the large component E2 do not interfere with each other, and the stroke length that cannot be used for the large component compatible suction head 162 is long. Inconvenience occurs.

  In the second embodiment, since the upper end position (H5) of each small component compatible suction head 161 and the upper end position (H5) of each large component compatible suction head 162 are at the same height position, a large component compatible suction head. When raising 162 to the upper end position, it is possible to prevent the adjacent small component compatible suction head 161 and the large component E2 from interfering with each other. As a result, the large component compatible suction head 162 can handle a large component E2 having a large width that extends to the adjacent small component compatible suction head 161.

  Further, in the component mounting apparatus 200, the lower end position H8 of each small component compatible suction head 161 and the lower end position H10 of each large component compatible suction head 162 are at different height positions. Specifically, the lower end position H10 of the suction head 162 corresponding to each large component is lower than the lower end position H8 of the suction head 161 corresponding to each small component by ΔD2. The lower position of the suction head 161 for small components when mounting the small component E1 is lower than that of the large component E2 because the height of the small component E1 is smaller than that of the large component E2. Lower than the position.

  Further, in the second embodiment, the control unit 109 is configured to control the descending amount of the entire head unit 103 by the elevating mechanism unit 190 according to the height (thickness) of the component E to be sucked. Specifically, the control unit 109 is configured to perform control to increase the descending amount of the entire head unit 103 by the elevating / lowering mechanism unit 190 as the height (thickness) of the component E decreases. .

  For example, the control unit 109, when sucking the small component E1 by the small component corresponding suction head 161, compared with the case where the large component corresponding suction head 162 sucks the large component E2, the head unit 103 by the elevating mechanism unit 190. It is configured to perform control to increase the total amount of descent.

  Further, the control unit 109 lowers the entire head unit 103 by the elevating mechanism unit 190, and then lowers the small component compatible suction head 161 or the large component compatible suction head 162 to accommodate the small component compatible suction head 161 or the large component compatible suction head 161. The suction head 162 is configured to control the suction of the component E.

  Further, after the component E is sucked, the control unit 109 is configured to raise the small component-compatible suction head 161 and the large component-compatible suction head 162 and to raise the entire head unit 103 by the elevating mechanism unit 190 in parallel. Has been done. Then, the control unit 109 is configured to perform control to convey the component E sucked by the small component compatible suction head 161 or the large component compatible suction head 162 to the substrate P.

  The other configurations of the second embodiment are similar to those of the first embodiment.

(Effects of Second Embodiment)
In the second embodiment, the following effects can be obtained.

  In the second embodiment, as described above, the suction head 161 for small components has the vertical stroke length D4. The suction head 162 for large parts has a vertical stroke length D5 different from the stroke length D4. As a result, the head unit 103 can be made smaller and lighter as in the first embodiment.

  In addition, in the second embodiment, as described above, the component mounting apparatus 200 is provided with the elevating mechanism section 190 that drives the entire head unit 103 in the vertical direction. As a result, the stroke length D4 of the suction head 161 for small components and the stroke length D5 of the suction head 162 for large components can be reduced because the entire head unit 103 is vertically driven by the elevating mechanism 190. As a result, the head unit 103 can be effectively reduced in size and weight.

  Further, in the second embodiment, as described above, the component mounting apparatus 200 includes the control unit 109 that controls the descending amount of the entire head unit 103 by the elevating mechanism unit 190 according to the height of the component E to be sucked. Set up. As a result, the descending amount of the entire head unit 103 by the elevating mechanism unit 190 is controlled according to the height of the component E to be sucked, so that the descending amount of the head unit 103 is insufficient or the descending amount of the head unit 103 is insufficient. Can be suppressed from becoming excessively large. As a result, the component E can be reliably sucked regardless of which of the suction head 161 for small components and the suction head 162 for large components is used.

  Further, in the second embodiment, as described above, the plurality (five) of small component compatible suction heads 161 and the plurality (five) of large component compatible suction heads 162 are arranged so as to be adjacent to each other. As a result, when the small component corresponding suction head 161 sucks the small component E1 and the large component corresponding suction head 162 sucks the large component E2, since the small component E1 and the large component E2 are adjacent to each other, they are adjacent to each other. It is possible to prevent the parts from interfering with each other. In addition, as described above, the large component E2 sucked by the large component corresponding suction head 162 may project to the adjacent suction head 60, and the suction head 60 adjacent to the large component corresponding suction head 162 may become unusable. In this case, with this configuration, it is possible to prevent the suction head 161 for small-sized components that sucks the small-sized component E1 from becoming unusable and the suction head 162 for large-sized components that sucks the large-sized component E2 from being unusable. This effect is particularly effective when both the small component E1 and the large component E2 are handled by the large component compatible suction head 162. Further, in a configuration in which the head unit 103 includes a plurality of suction heads 161 for small-sized components and a plurality of suction heads 162 for large-sized components, it is possible to further reduce the size and weight.

  Further, in the second embodiment, as described above, the plurality of small component compatible suction heads 161 and the plurality of large component compatible suction heads 162 are alternately arranged in rows. As a result, it is possible to effectively prevent the adjacent components from interfering with each other, and it is possible to effectively prevent the suction head 162 corresponding to the large component that sucks the large component E2 from becoming unusable.

  The other effects of the second embodiment are similar to those of the first embodiment.

[Third Embodiment]
Next, a third embodiment will be described with reference to FIGS. 1, 8 and 9. In the third embodiment, different from the configuration of the second embodiment in which the suction nozzles are arranged in one row, an example in which the suction nozzles are arranged in two rows will be described.

(Structure of component mounting device)
The component mounting apparatus 300 according to the third embodiment of the present invention includes a head unit 203 and a rotation drive mechanism 280 as shown in FIGS. 1, 8 and 9 in that the component mounting apparatus according to the second embodiment is mounted. Different from the device 200. The head unit 203 is an example of the "head unit for component mounting apparatus" in the claims.

  In the third embodiment, the head unit 203 includes, as shown in FIG. 5, eight small component-compatible suction heads 261 and eight large component-compatible suction heads 262. The suction head 261 for small components is an example of the "first holding head" in the claims. The large-sized component-compatible suction head 262 is an example of the "second holding head" in the claims.

  The eight small component-compatible suction heads 261 are arranged in a row on the Y2 side. Further, the eight large component-compatible suction heads 262 are arranged in a row in the direction (Y direction) orthogonal to the arrangement direction (X direction) of the eight small component-compatible suction heads 261 arranged in a row. In addition, they are arranged in a row so as to be adjacent to the suction heads 261 for small parts. That is, the head unit 203 has two rows, that is, a row of eight suction heads 261 for small components and a row of eight suction heads 262 for large components. The suction heads 261 for small parts and the suction heads 262 for large parts are arranged to face each other in the Y direction.

  Further, the component mounting apparatus 300 of the third embodiment is also provided with the lifting mechanism section 190. The lifting mechanism 190 is configured to drive the entire head unit 203 in the vertical direction.

  The relationship between the stroke lengths of the small-sized component-compatible suction heads 261 and the large-sized component-based suction heads 262, the upper end position, the lower end position, and the like is the same as in the second embodiment, so description thereof is omitted.

  Also in the third embodiment, since the upper end position of each small component compatible suction head 261 and the upper position of each large component compatible suction head 262 are at the same height position, the large component compatible suction head 262 is positioned at the upper end. It is possible to prevent interference between the small component compatible suction head 261 and the large component E2, which are adjacent to each other in the Y direction, when being raised to the position. As a result, the large component compatible suction head 262 can handle a large component E2 having a large width that extends to the adjacent small component compatible suction head 261 in the Y direction. Further, in the third embodiment, the pitch in the X direction of the adjacent large component compatible suction heads 262 does not cause the large component E2 to extend to the adjacent large component compatible suction head 262 even if the large component E2 is sucked. It is set to length. Note that in FIG. 8, for convenience of illustration, the distance between the small component-compatible suction head 261 and the large component-compatible suction head 261 that are adjacent in the Y direction is greater than the X-direction pitch of the adjacent large component-compatible suction heads 262. It is illustrated as follows.

  In the third embodiment, the rotary drive mechanism 280 includes a first rotary drive mechanism 281 that rotates the four small component-compatible suction heads 261 on the X2 side and the four large component-compatible suction heads 262 on the X2 side. The second rotation drive mechanism 282 includes four X1 side suction heads 261 for small components and four X1 side suction heads 262 for large components.

  The first rotation drive mechanism 281 has a drive motor 281a and a belt pulley mechanism 281b. The X2 side suction heads 261 for small parts and the four suction heads 262 for large parts on the X2 side rotate in the vertical direction by the driving force of the drive motor 281a transmitted via the belt pulley mechanism 281b. It is configured to rotate.

  The second rotation drive mechanism 282 has a drive motor 282a and a belt pulley mechanism 282b. The X1 side suction heads 261 for small parts and the four suction heads 262 for large parts on the X1 side are rotated in the vertical direction by the driving force of the drive motor 282a transmitted via the belt pulley mechanism 282b. It is configured to rotate.

  The rest of the configuration of the third embodiment is similar to that of the second embodiment.

(Effect of the third embodiment)
In the third embodiment, the following effects can be obtained.

  In the third embodiment, as described above, the small component compatible suction head 261 has the vertical stroke length D4. The suction head 262 for large parts has a vertical stroke length D5 different from the stroke length D4. As a result, the head unit 203 can be made smaller and lighter as in the first embodiment.

  Further, in the third embodiment, as described above, a plurality (eight) of suction heads 261 for small components are arranged in rows. Then, a plurality (eight) of the large-sized component-compatible suction heads 262 are arranged in rows in a direction (Y direction) orthogonal to the arrangement direction (X-direction) of the plurality of small-component compatible suction heads 261 arranged in a row. It is arranged in a row so as to be adjacent to the plurality of arranged small component-compatible suction heads 261. As a result, it is possible to effectively prevent the adjacent components from interfering with each other, and it is possible to effectively prevent the suction head 262 corresponding to the large component that sucks the large component E2 from becoming unusable. Further, in the present configuration, since the plurality of suction heads 261 for small parts and the plurality of suction heads 262 for large parts are arranged in a plurality of rows (two rows), the plurality of suction heads 261 for small parts and the plurality of large parts. The length of the row can be made smaller than in the case where the corresponding suction heads 262 are arranged in one row.

  The other effects of the third embodiment are similar to those of the first and second embodiments.

[Modification]
In addition, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and further includes meanings equivalent to the scope of the claims and all modifications (modifications) within the scope.

  For example, in the above-described first to third embodiments, an example in which a linear motor is used as the vertical drive mechanism that drives the suction head in the vertical direction has been shown, but the present invention is not limited to this. In the present invention, other than the linear motor may be used as the vertical drive mechanism that drives the suction head in the vertical direction. For example, a vertical drive mechanism having a ball screw mechanism may be used.

  Further, in the above-described first to third embodiments, an example is shown in which the stroke length of the suction head for small components (first suction head) is smaller than the stroke length of the suction head for large components (second suction head). However, the present invention is not limited to this. In the present invention, the stroke length of the first suction head may be larger than the stroke length of the second suction head.

  In addition, in the first to third embodiments, the plurality of small component compatible suction heads (first suction head) and the plurality of large component compatible suction heads (second suction head) are arranged adjacent to each other. Although an example in which they are arranged is shown, the present invention is not limited to this. In the present invention, the plurality of first suction heads and the plurality of second suction heads may not be arranged adjacent to each other.

  In addition, in the first to third embodiments, the small component compatible suction head (first holding head) and the large component compatible suction head (second holding head) suck the component to hold the component. However, the present invention is not limited to this. In the present invention, the first holding head and the second holding head do not have to be configured to hold the component by sucking the component. For example, the first holding head and the second holding head may be configured to hold the component by sandwiching (gripping) the component. That is, the first holding head and the second holding head may be configured as gripping heads.

  In the first to third embodiments, the belt of the belt pulley mechanism is continuously wound around the plurality of suction heads on the X2 side (X1 side), but the present invention is not limited to this. I can't. In the present invention, the belt of the belt pulley mechanism does not have to be continuously wound around the plurality of suction heads on the X2 side (X1 side). For example, the belt of the belt pulley mechanism may be laid on every other suction head.

  In the first and second embodiments, a plurality of small component compatible suction heads (first suction heads) and a plurality of large component compatible suction heads (second suction heads) are alternately arranged in rows. Although an example of arrangement is shown, the present invention is not limited to this. In the present invention, the plurality of first suction heads and the plurality of second suction heads may not be arranged alternately in a row. For example, if the second suction heads are arranged adjacent to both sides of the first suction head, the first suction head is arranged on one side adjacent to the second suction head, and the second suction head is arranged. The second suction head may be arranged on the other side adjacent to the head.

  In addition, in the third embodiment, the head unit includes two rows of suction heads (first suction heads) for small components and two rows of suction heads (second suction heads) for large components. Although an example having columns is shown, the present invention is not limited to this. In the present invention, the head unit may not have two rows, that is, the row of the plurality of first suction heads and the row of the plurality of the second suction heads. For example, as in the first and second embodiments, the head unit has two rows in which a plurality of first suction heads and a plurality of second suction heads are alternately arranged in rows. You may have. In the zigzag pattern, in the present invention, the head unit may have three or more rows composed of a plurality of first suction heads and a plurality of second suction heads.

  Further, in the third embodiment, the suction heads corresponding to the small components (first suction head) and the suction heads corresponding to the large components (second suction head) are arranged so as to face each other in the Y direction. However, the present invention is not limited to this. In the present invention, each first suction head and each second suction head may not be arranged so as to face each other in the Y direction. For example, the positions between the first suction heads and the second suction heads may be arranged so as to face each other in the Y direction. That is, the first suction heads and the second suction heads may be arranged in a staggered pattern.

  In the third embodiment, in the configuration in which the head unit has two rows of suction nozzles, the upper end positions of the suction heads for the small components (first suction head) and the suction heads for the large components (second suction head). Although the example in which the upper end position of) is the same height position is shown, the present invention is not limited to this. In the present invention, in the configuration in which the head unit has two rows of suction nozzles, the upper end position of each first suction head and the upper end position of each second suction head are different from each other, as in the first embodiment. It may be at the height position.

3, 103, 203 Head unit (head unit for component mounting device)
61, 161, 261 Small component compatible suction head (first holding head)
62, 162, 262 Suction head for large parts (second holding head)
71 Linear motor (first vertical drive mechanism)
72 Linear motor (second vertical drive mechanism)
9, 109 Control unit 100, 200, 300 Component mounting device 190 Lifting mechanism unit D1, D4 Stroke length (first maximum lifting stroke length)
D2, D5 stroke length (second maximum lifting stroke length)
E parts P board

Claims (8)

Equipped with a head unit for mounting components on the board,
The head unit is
A first holding head,
A second holding head,
A first vertical drive mechanism for vertically driving the first holding head;
Driving the second holding head in the vertical direction, and including a second vertical driving mechanism of the same type as the first vertical driving mechanism,
The first holding head can move up and down in the vertical direction by a maximum length that is a length from an upper end position where the first holding head is most raised to a lower end position where the first holding head is most lowered. Has a stroke length,
Up the second holding head in up and down direction, from the upper end position where the second holding head is the most elevated, the second holding head the second is the length of the to the lower end position most lowered It has a stroke length capable of raising and lowering , and is configured to hold the component that is larger in height than the component held by the first holding head ,
The first vertical drive mechanism has a first drive length corresponding to the first maximum liftable stroke length,
The second vertical drive mechanism has a second drive length corresponding to the second maximum liftable stroke length,
The first maximum liftable stroke length is smaller than the second maximum liftable stroke length,
Said first driving length, the second has smaller than the drive length, the component mounting apparatus. The first vertical drive mechanism and the second vertical drive mechanism include a linear motor,
Wherein the linear motor of the first vertical drive mechanism, the drive length is smaller than the linear motor of the second vertical drive mechanism, the component mounting apparatus according to claim 1. The head unit includes a plurality of the first holding heads and a plurality of the second holding heads,
Wherein a plurality of first holding head, and the plurality of second holding heads are arranged adjacent to each other, the component mounting apparatus according to claim 1 or 2. The component mounting apparatus according to claim 3 , wherein the plurality of first holding heads and the plurality of second holding heads are alternately arranged in rows. The plurality of first holding heads are arranged in a row,
The plurality of second holding heads are adjacent to the plurality of first holding heads arranged in a row in a direction orthogonal to the arrangement direction of the plurality of first holding heads arranged in a row. 4. The component mounting apparatus according to claim 3 , wherein the component mounting apparatuses are arranged in rows. The elevator mechanism that drives the entire head unit in the vertical direction, further comprising a component mounting apparatus according to any one of claims 1-5. The component mounting apparatus according to claim 6 , further comprising: a control unit that controls a descending amount of the entire head unit by the elevating mechanism unit according to a height of the component held. A first holding head,
A second holding head,
A first vertical drive mechanism for vertically driving the first holding head;
The second holding head is driven in the vertical direction, and a second vertical drive mechanism of the same type as the first vertical drive mechanism is provided,
The first holding head can move up and down in the vertical direction by a maximum length that is a length from an upper end position where the first holding head is most raised to a lower end position where the first holding head is most lowered. Has a stroke length,
Up the second holding head in up and down direction, from the upper end position where the second holding head is the most elevated, the second holding head the second is the length of the to the lower end position most lowered has a vertically movable stroke length, is configured to hold the height is greater the component than the first part article held by the holding head,
The first vertical drive mechanism has a first drive length corresponding to the first maximum liftable stroke length,
The second vertical drive mechanism has a second drive length corresponding to the second maximum liftable stroke length,
The first maximum liftable stroke length is smaller than the second maximum liftable stroke length,
Said first driving length, the second has smaller than the drive length, the component mounting apparatus head unit.

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