JPWO2014049822A1 - Suction nozzle and component mounting method - Google Patents

Abstract

A suction nozzle 10 that has a rectangular suction surface and can suck and hold two types of components P1 and P2 that are different from each other in size of the suction surface, and (A) a component The suction surface 50 that comes into contact with the suction surfaces of P1 and P2 is formed in a size and shape that fits inside the suction surface of P2 that is a large one of the two types of components, and the two types of components are inside it. (B) the opening 62 to the suction surface 50 of the through hole 60 that functions as an intake passage is formed on the small one of the two types of parts P1. It is formed in a dimension shape that fits inside the attracted surface. Therefore, by using the main suction nozzle 10, for example, the number of suction nozzles necessary for manufacturing one substrate can be reduced.

Description

  The present invention relates to a suction nozzle for sucking and holding a component, and relates to a method for mounting a component on a substrate using the suction nozzle.

  Many components are mounted on the circuit board. There are a plurality of parts with different sizes on the circuit board. In order to suck and hold various parts with different sizes, a plurality of suctions are provided for each size of the parts. A nozzle is prepared. Even if the size is the same, there are parts of different types, and therefore, for example, there is a suction nozzle described in the following patent document in order to stably hold each of the parts of different types.

JP-A-8-78885 Japanese Patent No. 4461660

  For example, in a component mounting machine, it is necessary to prepare a plurality of suction nozzles for each size of components to be mounted, and further, a process for replacing the nozzles during work is required. There is a problem that this leads to an increase in time. That is, the suction nozzle leaves room for improvement, and it seems that the practicality of the suction nozzle is improved by making some improvements. The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a highly practical suction nozzle and to provide a practical component mounting method using the suction nozzle.

  In order to solve the above-described problems, the suction nozzle of the present invention has a rectangular suction surface, and can suck and hold two types of parts that are different from each other in the size of the suction surface. (A) The suction surface that contacts the suction surface of the component is formed in a size and shape that fits inside the suction surface of the larger one of the two components, It is formed in a shape that fits the suction surface of a small one of the two types of parts, and (B) the opening to the suction surface of the through hole that functions as an intake passage is the suction of the small one of the two types of parts It is characterized in that it is formed in a size and shape that fits inside the surface.

  The component mounting method of the present invention is a method of mounting a component on a substrate using the suction nozzle described above, and (I) a large one of two types of components is sucked by the suction nozzle. A large component mounting step for holding and mounting on a substrate; and (II) a small component mounting step for mounting and mounting on a substrate by sucking and holding a small one of the two types of components by the suction nozzle. It is characterized by.

  According to the suction nozzle of the present invention, since one suction nozzle can cope with two types of parts, for example, the number of suction nozzles necessary for manufacturing one substrate can be reduced. . Moreover, according to the component mounting method of the present invention, the step of replacing the suction nozzle between the step of mounting one component of two types of components and the step of mounting the other component. Therefore, it is possible to shorten the cycle time during manufacturing.

Aspects of the Invention

  In the following, some aspects of the invention that can be claimed in the present application (hereinafter sometimes referred to as “claimable invention”) will be exemplified and described. As with the claims, each aspect is divided into sections, each section is numbered, and is described in a form that cites the numbers of other sections as necessary. This is merely for the purpose of facilitating the understanding of the claimable inventions, and is not intended to limit the combinations of the constituent elements constituting those inventions to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiments, etc., and as long as the interpretation is followed, another aspect is added to the form of each section. In addition, an aspect in which some constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention. In each of the following items, each of items (1) to (7) corresponds to each of claims 1 to 7.

(1) A suction nozzle that has a rectangular suction surface and is capable of sucking and holding two types of components that are different from each other in the size of the suction surface,
(a) a suction surface that comes into contact with the suction surface of the component; and (b) a through hole that penetrates in the axial direction and opens to the suction surface and functions as an intake passage.
The suction surface is formed in a size and shape that fits inside the suction target surface of a large one of the two types of components, and the suction target surface of a small one of the two types of components is arranged inside itself. Is formed in a dimension and shape that fits
A suction nozzle formed so that an opening of the through hole fits inside the suctioned surface of a small one of the two types of parts.

  In the suction nozzle described in this section, the size and shape of the suction surface and the air inlet are determined in accordance with the two types of corresponding parts so that the two types of parts having different sizes can be used. As described above, since there are various sizes of components to be mounted on one substrate, in order to manufacture one substrate, a plurality of suction nozzles are provided corresponding to these various components. It is necessary to prepare. That is, by using the suction nozzle of this section, it is possible to reduce the number of suction nozzles necessary for manufacturing the substrate.

(2) The suction surface has a shape extending in one direction, and the contour of the suction surface has two sides facing each other in a direction orthogonal to the longitudinal direction, which is the direction in which the suction surface extends, and parallel to each other. Shape and
The suction nozzle according to item (1), wherein the opening of the through hole has an elongated hole shape extending in the same direction as the longitudinal direction.

  The suction nozzle described in this section is an aspect in which the suction surface and the opening of the through hole to the suction surface are long in one direction, like a component having a rectangular suction surface, The suction nozzle is used so as to suck and hold the component in the state in which the longitudinal direction of the component and the longitudinal direction of the component are combined. Therefore, for example, when a small one of the two types of parts is detached from the part feeder, the interval between the parts in the part feeder can be made as small as possible.

(3) The opening of the through hole is
The suction nozzle according to item (2), wherein a dimension in a direction perpendicular to the longitudinal direction is formed in the middle part of the longitudinal direction so as to have a narrow width part formed in a half dimension on both ends.

  According to the suction nozzle described in this section, it is possible to prevent a small one of the two types of parts from being sucked into the through-hole or from being inclined and sucked to the suction surface. It is.

(4) The opening of the through hole is
The suction nozzle according to (3), wherein each of the longitudinal ends has a circular circular portion, and each of the two circular portions is connected by the narrow portion.

  In the suction nozzle described in this section, since the opening of the through-hole has a circular portion, even if the suction surface of the component is rounded, the circular portion abuts on the suction surface of the component without a gap. Therefore, even such parts can be stably adsorbed and held.

(5) The suction nozzle is
A small diameter portion, a large diameter portion, and a tapered portion formed by connecting the small diameter portion and the large diameter portion into a tapered shape,
The tip of the small diameter portion is shaped like a cutout cylinder, so that the suction surface is formed at the tip of the small diameter portion, the shape having the two sides parallel to each other,
The adsorption according to any one of items (2) to (4), wherein the large-diameter portion is formed in a size and shape in which a large one of the two types of components is accommodated inside the cross-sectional shape of itself. nozzle.

  The outer shape of the suction nozzle described in this section is embodied. The suction nozzle described in this section is shaped so that the cross-sectional shape becomes smaller toward the tip. Therefore, the suction nozzle described in this section can be easily manufactured by die cutting. In addition, the suction nozzle described in this section captures a good image because the tapered portion forms a background even if the suction held part is imaged, even if it is a large part of the two types. Is possible.

(6) The suction nozzle is
For sucking and holding a component having a long side of 1.6 mm and a short side of 0.8 mm and a component having a long side of 1.0 mm and a short side of 0.5 mm in the size of the surface to be sucked The suction nozzle according to any one of (1) to (5).

  In the suction nozzle described in this section, two types of corresponding parts are specified, and the suction nozzle is formed so as to correspond to so-called 1608 parts and 1005 parts.

(7) A method of mounting a component on a board using the suction nozzle according to any one of (1) to (6),
A large component mounting step of sucking and holding a large one of the two types of components by the suction nozzle, and mounting on the substrate;
A component mounting method comprising: a small component mounting step of sucking and holding a small one of the two types of components by the suction nozzle and mounting the component on the substrate.

  The mode described in this section is a mode in which the category is a component mounting method. According to the component mounting method described in this section, each of the two types of components is mounted on the substrate by using the suction nozzle capable of handling two types of components. When preparing two types of suction nozzles corresponding to each of the two types of components, it was necessary to replace one of the two types of suction nozzles with the other, but the component mounting method described in this section Therefore, since the process is not necessary, it is possible to shorten the cycle time for manufacturing one substrate.

It is a perspective view of the component mounting machine comprised including the suction nozzle which is an Example of claimable invention. It is a side view which expands and shows one of the mounting heads shown in FIG. It is a perspective view of the suction nozzle which is an example of the claimable invention. FIG. 4 is a plan view of the suction nozzle shown in FIG. 3, showing a relationship between a suction surface of the suction nozzle and a suction target surface of a component.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments as modes for carrying out the claimable invention will be described in detail with reference to the drawings. In addition to the following examples, the claimable invention is implemented in various modes including various modifications and improvements based on the knowledge of those skilled in the art, including the mode described in the above [Mode of Invention]. can do. Moreover, it is also possible to constitute the modification of the following Example using the technical matter described in the description of each item of [Aspect of the Invention].

  FIG. 1 is a perspective view of a component mounting machine 20 including a suction nozzle 10 that is an embodiment of the claimable invention. FIG. 1 shows the component mounting machine 20 with the exterior panel removed. The component mounting machine 20 can be replaced with a base 22, a beam 24 overlaid on the base 22, a board conveyor device 26 disposed on the base 22, and the base 22 on the front side of the component mounting machine 20. A plurality of component feeders 28 attached, a component camera 30 fixed to the base 22 between the substrate conveyor device 26 and the plurality of component feeders 28, and components supplied from any of the plurality of component feeders 28 are held. Then, a mounting head 32 for mounting the component on the substrate S and a head moving device 34 which is disposed on the beam 24 and moves the mounting head 32 are provided.

  The mounting head 32 is an index-type head and includes eight suction nozzles 10 which will be described in detail later. Each of the eight suction nozzles 10 sucks and holds the component P by supplying negative pressure (lowering the pressure below atmospheric pressure), and detaches the sucked and held component P from itself by stopping the supply of negative pressure. Let As shown in FIG. 2, each of the eight suction nozzles 10 is held by a nozzle holder 40 included in the mounting head 32, and the nozzle holder 40 corresponding to one suction nozzle 10 at a specific position is The suction nozzle 10 is configured to move up and down by being moved up and down by a nozzle lifting mechanism (not shown) of the mounting head 32.

  The suction nozzle 10 is attached to the lower end of the nozzle holder 40 provided in the mounting head 32 and is detachable. The nozzle holder 40 is configured to be rotated around the axis by a nozzle rotation mechanism (not shown) of the mounting head 32 for adjusting the mounting position. So that the relative rotation is impossible. That is, the suction nozzle 10 is configured to rotate integrally with the nozzle holder 40. The nozzle holder 40 is generally formed in a cylindrical shape, and the inside thereof serves as a passage for supplying negative pressure, that is, an intake passage 42 for sucking air (see FIG. 3). ing.

  Next, the suction nozzle 10 of the present embodiment will be described in detail with reference to FIGS. 3 and 4 as well. 3 is a perspective view of the tip side of the suction nozzle 10, and FIG. 4 is a plan view showing the relationship between the suction nozzle 10 and components. As shown in FIG. 3, the suction nozzle 10 includes a small diameter portion 44, a large diameter portion 46, and a tapered portion 48 formed in a tapered shape by connecting the small diameter portion 44 and the large diameter portion 46. Yes. The small-diameter portion 44 has a shape in which the tip ends are sharpened on both ends facing each other across the axis, and the tip surface of the small-diameter portion 44 abuts against the suction surface of the component. The surface 50 is used. As shown in FIG. 4, the suction surface 50 has a shape in which each of both end sides sandwiching one center line is cut out in parallel with the center line. That is, the suction surface 50 has a shape extending in one direction, and the contour of the suction surface 50 is opposed to each other in a direction orthogonal to the direction in which the suction surface 50 extends, and parallel sides 52 that are two sides parallel to each other. It is made into the shape which has.

  As described above, the small-diameter portion 44 has a shape in which the tip is rolled up at both ends facing each other across the axis. Therefore, the small-diameter portion 44 has an axial direction from the cylindrical portion 54 connected to the tapered portion 48, the columnar nozzle tip 56 having the same cross-sectional shape as the suction surface 50, and the parallel side 54 of the suction surface 50 in the nozzle tip 54. And an inclined surface portion 58 that connects the cylindrical portion 56 with an inclined surface.

  Further, the suction nozzle 10 has a through hole 60 that opens to the suction surface 50 and functions as a part of the intake passage 42. The opening of the through hole 60, that is, the air inlet 62 has a long shape in the same direction as the direction in which the suction surface 50 extends. More specifically, the air inlet 62 has a circular circular portion 64 formed on each of both end sides in the direction in which the air inlet 62 extends, and each of the two circular portions 64 is half the outer shape of the circular portion 64. The shape includes a narrow portion 66 connected by a width.

  The suction nozzle 10 can suck and hold two types of components P1 and P2 having different sizes. The part P1 is a so-called 1005 part in which the dimension of the surface to be sucked by the suction nozzle 10 is 1.0 mm long and 0.5 mm short. The component P2 is a so-called 1608 component in which the dimension of the surface to be sucked by the suction nozzle 10 is 1.6 mm long and 0.8 mm short. 4A shows the relationship between the suction surface 50 of the suction nozzle 10 and the suction target surface of the component P1, and FIG. 4B shows the suction surface 50 of the suction nozzle 10 and the suction surface of the component P2. Shows the relationship. The suction nozzle 10 is adjusted by the mounting head 32 so that the longitudinal direction of the suction nozzle 10 coincides with the longitudinal direction of the parts P1 and P2 when sucking and holding the parts P1 and P2. It has become.

  As can be seen from FIG. 4, the suction surface 50 is formed in a size and shape that fits inside the suction surface of P2, which is the larger of the two types of parts P1 and P2, and 2 It is formed in a size and shape that fits the attracted surface of P1, which is a small one of the seed components P1, P2. Further, the air inlet 62 is formed in a size and shape that fits inside the attracted surface of P1, which is the smaller of the two types of parts P1 and P2.

  In the suction nozzle 10 of the present embodiment, the suction surface 50 and the intake port 62 are shaped as described above, so that two types of parts P1 and P2 having different sizes can be stably suctioned and held. Is possible. In particular, P1 which is a small one of the two types of components may be sucked into the through hole 52 or may be sucked and sucked with respect to the suction surface 50. Since the suction nozzle 10 has a shape in which the suction port 62 has a narrow width portion 66 at the middle in the longitudinal direction, the smaller component P1 can be stably sucked and held. Further, as shown in FIG. 4, the distance between the parallel sides 52 on the suction surface 50 is slightly smaller than the short side of the large component P2 of the two types of components, and the short side of the small component P1. It is made slightly larger. As a result, according to the suction nozzle 10 of the present embodiment, the component interval in the supply feeder 28 is almost unnecessary in the large component P2, and even in the small component P1, it is not necessary to leave a large interval. .

  The component having a rectangular surface to be attracted is a rectangular chip having a generally rectangular parallelepiped shape, and there are two types of corner chips, a resistor and a capacitor. Since these square chips are set on the component feeder 28 in a state of being affixed to the tape, the square chips have a sufficient suction force to be sucked by the suction nozzle 10 and to be detached from the tape. The component P1 is a resistor square chip, and the resistor square chip has eight rectangular parallelepiped-shaped corners as compared with the capacitor square chip. That is, the square corner of the resistor is more likely to be caught when it is detached from the tape than the square corner of the capacitor, and a large suction force is required. In addition, the surface of the resistor square tip has a slightly rounded shape. In the suction nozzle 10 of the present embodiment, since both end portions of the suction port 62 are formed in a circular shape, the circular portion 64 can be in contact with the rounded resistance suction surface without a gap. Therefore, according to the suction nozzle 10 of the present embodiment, even a component having the above shape can be stably sucked and held.

  Furthermore, as shown in FIG. 4B, the suction nozzle 10 is sized and shaped so that P2 which is a large one of the two types of parts is accommodated inside the large diameter portion 46. Therefore, in the suction nozzle 10 of this embodiment, when the part P2 is picked up and held while the part P2 is picked up, the inclined surface part 58 and the taper part 48 of the small diameter part 44 form the background of the part P2. Since it functions as a member, it is possible to capture a good image.

  Next, the work process of the component mounting machine 20 including the suction nozzle 10 will be briefly described. First, when holding the component P1 which is a small one of the two types of components in the component mounting machine 20, the mounting head 32 is first positioned above the component feeder 28 by the head moving device 34. Then, the suction nozzle 10 at a specific position among the eight suction nozzles 10 is lowered by the nozzle lifting mechanism, negative pressure is supplied to the suction nozzle, and the component P supplied from the component feeder 28 is suction-held. Is done. By repeating this suction holding operation for each suction nozzle 10 in order, the component P1 is sucked and held by each of the eight suction nozzles 10.

  Next, when mounting the component P1 on the substrate S, the mounting head 32 is positioned above the mounting position of the component P1 on the substrate S fixed by the substrate conveyor device 26 by the head moving device 34. Then, the suction nozzle 10 at the specific position is lowered by the nozzle lifting mechanism, the supply of negative pressure to the suction nozzle 10 is cut off, and the component is mounted at the mounting position. This mounting operation is sequentially repeated for each suction nozzle 10 so that the component P1 sucked and held by each of the eight suction nozzles 10 is mounted on the substrate S.

  Subsequently, the component P2, which is the larger of the two types of components, is sucked and held by each of the eight suction nozzles 10 in the same manner as the component P1, and the sucked and held component P2 is mounted on the substrate S. . That is, the component mounting method of the present embodiment using the suction nozzle 10 includes a small component mounting step in which P1 which is a small one of the two types of components is suction-held and mounted on the substrate S, and the two types of components. And a large component mounting step in which P2 which is a large one of them is held by suction and mounted on the substrate S. That is, in the component mounting method of the present embodiment, compared to the case of preparing two types of suction nozzles corresponding to each of the two types of components, the process of exchanging from one of the two types of suction nozzles to the other is performed. The cycle time for manufacturing one substrate is shortened by the time required. Incidentally, the eight suction nozzles 10 included in the mounting head 32 are automatically replaceable, and the above two types of nozzle nozzles 70 disposed between the substrate conveyor device 26 and the plurality of component feeders 28 are provided. A replacement suction nozzle capable of accommodating two types of parts having different sizes from the parts P1 and P2 is accommodated.

  From the above, by using the suction nozzle of this embodiment, it is possible to reduce the types of suction nozzles necessary for manufacturing one substrate. Furthermore, since the types of components to be mounted on the substrate S in one component mounting machine 20 can be increased by using the suction nozzle of this embodiment, the number of necessary component mounting machines can be reduced. It is possible to reduce.

  DESCRIPTION OF SYMBOLS 10: Suction nozzle 20: Component mounting machine 22: Base 24: Beam 26: Substrate conveyor device 28: Component feeder 30: Component camera 32: Mounting head 34: Head moving device 40: Nozzle holder 42: Intake passage 44: Small diameter part 46 : Large diameter portion 48: Tapered portion 50: Suction surface 52: Parallel side 54: Column portion 56: Nozzle tip portion 58: Inclined surface portion 60: Through hole 62: Air inlet 64: Circular portion 66: Narrow width portion 70: Nozzle stocker P1: 1005 parts (resistance) P2: 1608 parts S: Board

Claims (7)

Each of the suction nozzles has a suction surface of a rectangular shape and can suck and hold two types of parts that are different from each other in the size of the suction surface.
(a) a suction surface that comes into contact with the suction surface of the component; and (b) a through hole that penetrates in the axial direction and opens to the suction surface and functions as an intake passage.
The suction surface is formed in a size and shape that fits inside the suction target surface of a large one of the two types of components, and the suction target surface of a small one of the two types of components is arranged inside itself. Is formed in a dimension and shape that fits
A suction nozzle formed so that an opening of the through hole fits inside the suctioned surface of a small one of the two types of parts. The suction surface has a shape extending in one direction, and the contour of the suction surface has a shape having two sides facing each other in a direction perpendicular to the longitudinal direction, which is the direction in which the suction surface extends, and parallel to each other. ,
The suction nozzle according to claim 1, wherein the opening of the through hole has an elongated hole shape extending in the same direction as the longitudinal direction. The opening of the through hole is
The suction nozzle according to claim 2, wherein a dimension in a direction perpendicular to the longitudinal direction is formed in the middle part of the longitudinal direction so as to have a narrow width part formed in a half dimension on both ends. The opening of the through hole is
The suction nozzle according to claim 3, wherein each of both ends in the longitudinal direction has a circular circular portion, and each of the two circular portions is connected by the narrow width portion. The suction nozzle
A small diameter portion, a large diameter portion, and a tapered portion formed by connecting the small diameter portion and the large diameter portion into a tapered shape,
The tip of the small diameter part is shaped like a notch, thereby forming the suction surface having the two sides parallel to each other at the tip of the small diameter part,
The suction nozzle according to any one of claims 2 to 4, wherein the large-diameter portion is formed in a size and shape in which a large one of the two types of components is accommodated inside the cross-sectional shape of the large-diameter portion. The suction nozzle
For sucking and holding a component having a long side of 1.6 mm and a short side of 0.8 mm and a component having a long side of 1.0 mm and a short side of 0.5 mm in the size of the surface to be sucked The suction nozzle according to any one of claims 1 to 5. A method of mounting a component on a substrate using the suction nozzle according to any one of claims 1 to 6,
A large component mounting step of sucking and holding a large one of the two types of components by the suction nozzle, and mounting on the substrate;
A component mounting method comprising: a small component mounting step of sucking and holding a small one of the two types of components by the suction nozzle and mounting the component on the substrate.

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