JP2012248562A - Component mounting program and component mounting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid increase in the number of arranged feeders even when a kind of a suction nozzle is changed without interfering with an adjacent mounted component.SOLUTION: A control device of a component mounting machine executes a component mounting program to suck the components in a predetermined mounting order and mount them on a circuit substrate using plural kinds of suction nozzles of the component mounting machine. A mounting sequence, in which component kinds, mounting positions (X-coordinate, Y-coordinate) and kinds of the suction nozzles to be used (hereinafter, referred to as "used nozzle kind") are designated in the mounting order, is set to the component mounting program, and the used nozzle kind is set to the suction nozzle with a large nozzle diameter among the kinds of the suction nozzles that can suck the components and do not interfere with the adjacent mounted components. When the component kinds designated by the mounting sequence are identical to each other, even if the used nozzle kinds designated by the mounting sequence are different from each other, the components supplied from the same feeder are sucked.

Description

  The present invention relates to a component mounting program and a component mounting machine that use a plurality of types of suction nozzles to suck and mount components on a circuit board in a predetermined mounting order.

  Conventionally, when a component is mounted on a circuit board by a component mounting machine, the type of suction nozzle to be used (nozzle diameter, shape, etc.) is switched according to the type of component (size, etc.). In general, a large component uses a suction nozzle with a large nozzle diameter, and a small component uses a suction nozzle with a small nozzle diameter. Further, for particularly small parts, an elliptical cut nozzle adapted to the part shape as shown in FIG. 2 may be used.

  However, in order to stabilize the suction posture even with small parts, it is desirable to use a circular suction nozzle with a nozzle diameter as large as possible to increase the part suction force (suction area), as shown in FIG. If a circular suction nozzle with a nozzle diameter larger than the width of the part is used, a part of the suction nozzle sticks out of the part, so if the distance between adjacent mounted parts is narrow, the suction nozzle When a sucked component is mounted, the suction nozzle may interfere with an adjacent mounted component, resulting in a component mounting failure.

  Therefore, in the component mounting machine disclosed in Japanese Patent Application Laid-Open No. 2009-170573, the suction nozzle does not interfere with the adjacent mounted component when the difference in height between the two adjacent components is equal to or less than a predetermined value. The suction nozzle to be used is selected from the nozzle candidates of the nozzle diameter.

JP 2009-170573 A

  However, with current component mounting machines, the type (nozzle diameter) of the suction nozzle to be used is determined for each component type, and the same type of suction nozzle is used for the same component type. Even if it is a product type, if the type of suction nozzle to be used is different, it is set so as to be handled as a different part type in form and to pick up parts supplied from different feeders. For this reason, as in Patent Document 1, when changing the type of the suction nozzle so as not to interfere with the adjacent mounted component, a plurality of feeders that supply the same component type must be arranged. There is a disadvantage that the number of feeders is increased.

  Therefore, the problem to be solved by the present invention is to provide a component mounting program and a component mounting machine that can avoid an increase in the number of feeders even when the type of suction nozzle is changed.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a component mounting program for sucking components and mounting them on a circuit board in a predetermined mounting order using a plurality of types of suction nozzles of a component mounting machine. A mounting sequence in which the component type, the mounting position, and the type of suction nozzle to be used are specified in the mounting order is set. In this way, even when the type of the suction nozzle is changed, there is no need to arrange a plurality of feeders that supply the same component type, and an increase in the number of feeders arranged can be avoided.

  In this case, as described in claim 2, the type of suction nozzle to be used is set from the types of suction nozzles that can suck parts and do not interfere with adjacent mounted parts, and are specified in the mounting sequence. If the component types are the same, it is preferable to set the components supplied from the same feeder to be absorbed even if the types of the suction nozzles specified in the mounting sequence are different. In this way, even when the type of the suction nozzle is changed so as not to interfere with the adjacent mounted component, it is not necessary to arrange a plurality of feeders that supply the same component type, and the number of feeders arranged increases. Can be avoided.

  Further, as described in claim 3, the type of the suction nozzle to be used is set to a suction nozzle having a large nozzle diameter from among the types of suction nozzles that can suck parts and do not interfere with adjacent mounted parts. It is good to do so. This is because the suction nozzle having a larger nozzle diameter has a larger component suction force (suction area) and can stably suction the component.

  Further, as in claim 4, the type of the suction nozzle to be used may be arbitrarily set on the user side who uses the component mounting program. In this way, for example, even if the user replaces the suction nozzle held by the mounting head of the component mounting machine and changes the type of suction nozzle that can be used in the component mounting machine, the user specifies the mounting sequence accordingly. The type of suction nozzle can be changed by the user.

  Further, when the present invention is applied to a component mounting machine having a nozzle station for storing replacement suction nozzles, the suction nozzle specified in the mounting sequence is not held by the mounting head as in claim 5. In some cases, the suction nozzle designated in the mounting sequence may be selected from the suction nozzles stored in the nozzle station and replaced with the mounting head. In this way, the number of types of suction nozzles designated in the mounting sequence can be increased.

FIG. 1 is a side view of a component mounting machine according to an embodiment of the present invention. FIG. 2 is a perspective view showing an example of avoiding interference with adjacent mounted parts using an elliptical cut nozzle. FIG. 3 is a perspective view showing an example in which a suction nozzle having a nozzle diameter larger than the width of the component interferes with an adjacent mounted component. FIG. 4 is a diagram illustrating a setting example of the mounting sequence. FIG. 5 is a diagram showing a mounting example of components to be mounted on the circuit board.

Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described.
First, the configuration of the component mounting machine will be described with reference to FIG.
A conveyor 13 for transporting the circuit board 12 is provided on the base 11 of the component mounting machine (hereinafter, the transport direction of the circuit board 12 by the conveyor 13 is defined as the X direction, and a horizontal direction perpendicular to the transport direction). Is the Y direction). Of the two support rails 13a and 13b and the support members 15a and 15b that support the conveyor belts 14a and 14b constituting the conveyor 13, one support member 15a is fixed at a fixed position, and the opposite support member By adjusting the position in the Y direction of 15b along the guide rail 16 by a feed screw mechanism or the like, the width of the conveyor 13 (the interval between the conveyor rails 13a and 13b) can be adjusted to the width of the circuit board 12. Yes.

  A component supply device 20 is set on the side of the conveyor 13 on the base table 11 so as to be detachable in the Y direction. This component supply apparatus 20 has a configuration in which a device pallet 22 on which a plurality of feeders 23 are mounted is mounted on a base table 11 via a pallet base 21.

  A mounting head 33 is attached to an X slide 31 that moves in the X direction of the XY movement mechanism (two-axis robot) of the component mounting machine. The X slide 31 is supported by a Y slide (not shown) so as to be slidable in the Y direction, and can be driven in the X direction at the same time as the mounting head 33 is driven between the feeder 23 and the circuit board 12 in the Y direction. It is like that. The mounting head 33 is a rotary head (revolver type head) in which a plurality of suction nozzles 34 are arranged in a circumferential direction on a rotatable nozzle holder 39, and each suction nozzle 34 moves up and down individually. It is supposed to be.

  The plurality of suction nozzles 34 exchangeably held by the mounting head 33 are a plurality of types of circular suction nozzles (see FIG. 3) having different nozzle diameters, or elliptical cut nozzles (see FIG. 2) is used. In addition, the component mounting machine is provided with a nozzle station (not shown) for storing a replacement suction nozzle.

  The control device (not shown) of the component mounting machine configured as described above executes a component mounting program and uses the plurality of types of suction nozzles 34 of the component mounting machine to arrange the components in a predetermined mounting order. Adsorbed and mounted on the circuit board 12. As shown in FIG. 4, the component mounting program includes a mounting sequence in which a component type, a mounting position (X coordinate, Y coordinate) and a type of suction nozzle to be used (hereinafter referred to as “used nozzle type”) are specified. The set nozzle type is set to a suction nozzle having a large nozzle diameter from among the types of suction nozzles that can suck parts and do not interfere with adjacent mounted parts. This is because the suction nozzle having a larger nozzle diameter has a larger component suction force (suction area) and can stably suction the component.

  In the mounting example shown in FIG. 5, the part A (4) in the mounting order 4 has a narrow interval with the adjacent mounted part B (1), so a circular suction having a nozzle diameter larger than the width of the part A (4). If a nozzle is used, a part of the suction nozzle will stick out of the part A (4), and the suction nozzle will interfere with the adjacent mounted part B (1), resulting in part A (4) or part B (1 ) May occur (see Fig. 3).

  Therefore, in the mounting sequence of FIG. 4, the nozzle type used for picking up the component A (4) in the mounting order 4 is larger than the nozzle type used in the parts A (2) and (3) in the mounting order 2 and 3. Is set to “φ0.4”. Parts A (2) and (3) in the mounting order 2 and 3 are the same type as the parts A (4) in the mounting order 4, but the interval between the mounted parts can be secured sufficiently. 3 is set to a nozzle diameter “φ0.7” larger than the used nozzle type of the component A (4) in the order of installation 4.

  When there are suction nozzles having the same nozzle diameter and different nozzle shapes, both the nozzle diameter and the nozzle shape may be set.

  Further, in the component mounting program of this embodiment, when the component types specified in the mounting sequence are the same, the components supplied from the same feeder 23 are sucked even if the used nozzle types specified in the mounting sequence are different. Is set.

In the present embodiment, the user nozzle that uses the component mounting program can arbitrarily set the type of nozzle used. In this way, for example, even if the user replaces the suction nozzle 34 held by the mounting head 33 of the component mounting machine and changes the type of the suction nozzle 34 that can be used in the component mounting machine, the mounting sequence is changed accordingly. The user can change the nozzle type to be used.
The function for manually setting the used nozzle type may be set manually for each part, or the used nozzle types for the same part type may be set manually.

  In this embodiment, since the nozzle station for storing the replacement suction nozzle is provided, the component mounting program stores the suction nozzle specified in the mounting sequence in the nozzle station when the mounting nozzle 33 does not hold the suction nozzle. The suction nozzle specified in the mounting sequence is selected from the stored suction nozzles and is set to be replaced with the mounting head 33.

  In the component mounting program of the present embodiment described above, a mounting sequence in which the component type, mounting position, and used nozzle type are specified in the mounting order is set, and the used nozzle type can adsorb the component and has been mounted adjacently. If the types of suction nozzles that do not interfere with the components are set and the component types specified in the mounting sequence are the same, the components supplied from the same feeder 23 are not affected even if the types of suction nozzles specified in the mounting sequence are different. Since the suction is set, even when the type of the suction nozzle is changed so as not to interfere with adjacent mounted parts, it is not necessary to arrange a plurality of feeders 23 that supply the same part type, and the number of feeders 23 is arranged. Can be avoided.

  Moreover, since the type of nozzle used is set to a suction nozzle with a large nozzle diameter from among the types of suction nozzles that can suck parts and do not interfere with adjacent mounted parts, adjacent mounted parts The components can be stably adsorbed while avoiding interference with the components.

  However, the present invention is not limited to the case where the type of nozzle used is set to a suction nozzle having a large nozzle diameter, and the type of nozzle used is a type of suction nozzle that can suck parts and does not interfere with adjacent mounted parts. What is necessary is just to set suitably from the inside.

  In addition, the present invention is not limited to the above-described embodiments. For example, the present invention does not depart from the gist such as a configuration in which feeders are arranged on both sides of a component mounting machine or a configuration in which a plurality of conveyors are provided. Needless to say, various modifications can be made within the scope.

  DESCRIPTION OF SYMBOLS 11 ... Base stand, 12 ... Circuit board, 13 ... Conveyor, 20 ... Component supply apparatus, 23 ... Feeder, 31 ... X slide, 33 ... Mounting head, 34 ... Suction nozzle

Claims (5)

In a component mounting program that uses a plurality of types of suction nozzles of a component mounting machine to suck components and place them on a circuit board in a predetermined mounting order.
A component mounting program characterized in that a mounting sequence specifying a component type, a mounting position, and a type of suction nozzle to be used is set in the mounting order. The type of the suction nozzle to be used is set from among the types of suction nozzles that can suck parts and do not interfere with adjacent mounted parts,
When the component types specified in the mounting sequence are the same, even if the types of suction nozzles specified in the mounting sequence are different, it is set to suck components supplied from the same feeder The component mounting program according to claim 1.   The type of the suction nozzle to be used is set to a suction nozzle having a large nozzle diameter from among the types of suction nozzles that can suck parts and do not interfere with adjacent mounted parts. The component mounting program according to 1 or 2.   The component mounting program according to any one of claims 1 to 3, wherein a type of the suction nozzle to be used can be arbitrarily set by a user who uses the component mounting program. A control device that controls the operation of mounting the components on the circuit board in the mounting order specified in the mounting sequence by executing the component mounting program according to any one of claims 1 to 4.
A mounting head that holds one or more suction nozzles in a replaceable manner;
In a component mounting machine equipped with a nozzle station for storing a replacement suction nozzle,
When the suction nozzle specified in the mounting sequence is not held by the mounting head, the control device selects the suction nozzle specified in the mounting sequence from the suction nozzles stored in the nozzle station. A component mounting machine, wherein the mounting head is replaced with the mounting head.

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