JP2938556B2 - Component mounting equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a component mounting apparatus for mounting various components such as electronic components on a circuit board or the like.

2. Description of the Related Art As an electronic component mounting machine for mounting an electronic component on a substrate, as shown in FIG. 6, a rotating body provided with a plurality of mounting heads 21 is intermittently rotated around a vertical axis. A component mounting device of a revolving type, in which a mounting means 20 is provided, a component is taken out at a predetermined component supply position A of a component supply part 22 and mounted on a substrate 23 at a component mounting position B, is a component mounting device capable of high-speed mounting. It is conventionally known as an apparatus. The component supply unit 22 of the component mounting apparatus sets a stop position at the rear part of the turning path of the mounting head 21 as a component supply position A, and can move in the component supply position A in a tangential direction (X direction) with respect to the turning path. A movable base 24 is provided, and a large number of component supply units 25 are mounted on the movable base 24 in parallel in the moving direction (X direction) so that any component supply unit 25 can be positioned corresponding to the component supply position A. Is configured. or,
The stop position of the mounting head 21 at the front of the turning path is a component mounting position B, and the component mounting position B can move in two horizontal directions (X direction and Y direction) orthogonal to each other.
A table 26 is provided, and the substrate 23 is fixed thereon. Further, the CCD recognition camera 28 and the pair of reflecting mirrors 29a, 29a are arranged so that the position of the component is recognized at the stop position of the mounting head 21 from the component supply position A to the component mounting position B.
Recognition means 27 consisting of b is provided.

However, in the component mounting apparatus as shown in FIG.
There is a problem that components can be mounted on only one substrate 23 at a time by one component mounting apparatus, and it is difficult to increase the mounting efficiency beyond a certain level even if the mounting speed is increased.

Therefore, as shown in FIG. 7, a plurality of mounting means 30a and 30b operating in synchronization with each other are provided in parallel, and a plurality of mounting means 30a and 30b are provided on the movable base 34 of the component supply unit 32 in correspondence with the mounting means 30a and 30b, respectively. Are mounted in the same arrangement, and the mounting means 30a and 30b are mounted on a common XY table 36.
A plurality of substrates 23a and 23b are fixed in accordance with
There has been proposed a component mounting apparatus in which components are simultaneously mounted on 23a and 23b at once.

Problems to be Solved by the Invention However, in the component mounting apparatus as shown in FIG. 7, each of the mounting means 30a and 30b has its own component supply position A.
It is unavoidable that the relative positions of the components are slightly deviated from each other when the components are taken out, while the substrates 23a and 23b are fixed on the common XY table 36, so that the substrates 23a and 23b
In order to mount the component with high accuracy, the only way to fix the component holding position mechanically by the position setting means while the component is held by the mounting head 21 is. Therefore, it is necessary to provide a complicated positioning means in the mounting head 21, which complicates the configuration, increases the cost, increases the weight of the mounting head, adversely affects high-speed mounting, and furthermore, determines the positioning by the positioning means. However, there is a problem that the method cannot be applied to the mounting of a component having a shape that is impossible.

Further, in the component mounting apparatus as shown in FIG. 7, each of the mounting means 30a and 30b has its own component supply position A.
In order to take out the desired components in order to cope with the increase in the types of components mounted on the substrates 23a and 23b, the movable table 34 of the component supply unit 32 must necessarily be enlarged. 34
There is also a problem that it becomes large and heavy, and it is difficult to perform high-speed operation.

Means for Solving the Problems In order to achieve the above object, the component mounting apparatus of the present invention is provided with a plurality of mounting means operating in synchronization with each other,
Each mounting means is provided with a plurality of mounting heads around a rotating body which is intermittently rotatable around a vertical axis, and by intermittently rotating each of the rotating bodies, each mounting head is provided with a predetermined mounting means. A component mounting apparatus that picks up components from a component unloading position of a component supply unit at a component supply position and then mounts the component on a member to be mounted positioned by a positioning unit at a predetermined component mounting position for each mounting unit. So,
The component supply unit includes a plurality of moving bodies on which a plurality of component supply devices having components of the same type are mounted, and each of the moving bodies is independent of each other on a predetermined plane in any direction. Each component supply device on which a desired component is mounted is movable so as to be positioned with respect to each component supply position, and the positioning means includes a plurality of moving bodies capable of holding the object to be mounted. Each of the bodies is independently movable in an arbitrary direction on a predetermined plane, and is configured to simultaneously position the held objects to be mounted on the respective component mounting positions.

According to the component mounting apparatus of the present invention, a plurality of mounting means operating in synchronization with each other are provided in parallel, so that the component mounting can be efficiently performed, and the mounting is performed at each component supply position by each mounting means. Even if a relative misalignment occurs in the holding position when holding the component, the component position is recognized between the component supply position and the component mounting position, and the position of each moving body in the positioning means is individually adjusted based on that. By doing so, components can be accurately mounted on the plurality of mounted members fixed on each moving body. Furthermore, even if the total number of parts used increases, it is possible to suppress the expansion of the parts supply unit as in the conventional equipment, to save the space of the entire equipment, and to separately operate multiple parts supply devices. By moving, the individual component supply devices can be reduced in weight and high-speed moving operation can be performed.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a component mounter, and a component supply unit 2 is provided behind the component mounter. The component supply unit 2 includes a guide plate 3 forming a fixed moving plane, and a plurality of guide plates 3 each of which can independently move on the guide plate 3 through an arbitrary path and can be positioned at an arbitrary position. The moving body 4 includes a plurality of component supply units 5 mounted in parallel on each moving body 4 as shown in FIG.

The component supply unit 5 is equipped with a reel 6 on which a tape-like component assembly holding a large number of components in a line is wound, and the tape-like component assembly is sequentially fed from the reel 6 and the component is placed at one end. The parts can be sequentially sent out to the component take-out position 5a provided at the position.

A pair of revolving component mounting means is provided at the front of the component supply unit 2.
7a and 7b are arranged in parallel. This component mounting means 7
a and 7b are configured so that a plurality of mounting heads 8 are arranged at equal intervals around a rotating body that can rotate intermittently around a vertical axis, and the rotating bodies are rotated intermittently at the arrangement intervals of the mounting heads 8. . The rear stop position of each mounting head 8 is set to a component supply position A for extracting a component from the component extraction position 5a of the component supply unit 5, and the front stop position is set to a component mounting position B.

In front of these component mounting means 7a and 7b, a positioning means 10 for a circuit board 9 on which components are to be mounted is provided. The positioning means 10 fixes the pair of circuit boards 9a and 9b in correspondence with the respective component mounting units 7a and 7b, and also allows an arbitrary position of the circuit boards 9a and 9b to correspond to the component mounting position B, and is independent of each other. The position is adjustable. That is, as shown in FIG. 2, a pair of moving bodies 12a and 12b, each of which can move independently on the guide plate 11 and can be positioned at an arbitrary position, are provided, and a circuit board is provided thereon.
It is configured to fix 9a and 9b. Reference numeral 13 denotes supply means for supplying the circuit board 9 to the positioning means 10, and reference numeral 14 denotes discharge means for discharging the circuit board 9 after mounting components.

The principle of movement of the guide plate 3 and the moving body 4 and the principle of movement of the guide plate 11 and the moving bodies 12a and 12b are based on the principle of movement of the linear motor.
As shown in FIGS. 4 and 5, the guide plates 3 and 11 are formed by projecting a myriad of projections 16 in a matrix on the surface of a plate 15 made of a magnetic material. A pair of electromagnets 17a, 17b, 18a, 18b are arranged in the moving body 4, 12a, 12b in the front-rear direction and the left-right direction, respectively, and the magnetic poles thereof They face each other via a gap. The gap between the projections 16 of the guide plates 3 and 11 is filled with a synthetic resin 19 or the like to form a smooth surface, and the surfaces of the guide plates 3 and 11 and the moving bodies 4, 12a and 12b are The moving bodies 4, 12a, and 12b are movably supported in such a manner that high-pressure air is ejected between the lower surfaces to form a fixed gap therebetween. Also,
Each of the electromagnets 17a, 17b, 18a, 18b is formed such that the pair of magnetic poles is shifted in phase by a half pitch with respect to the pitch of the projection 16, and the electromagnets 17a and 17b, and 18a and 1 in the same direction.
8b are shifted from each other by a quarter pitch phase. In this way, by alternately operating the electromagnets 17a, 17b or 18a, 18b, the moving body 4 can be moved in the front-rear direction or the left-right direction by a quarter pitch of the protrusion 16 and positioned at a predetermined position.

In the above configuration, when components are mounted, a plurality of component supply units 25 corresponding to the type of the circuit board 9 are required.
A pair of moving bodies 4 each having
a, 7b is located at the rear supply operation position so that any of the mounted component supply units 25 can be positioned corresponding to the component supply position A. From this state, by moving the pair of moving bodies 4 at the supply operation position in the left-right direction in accordance with the component mounting order, the component supply units 5 holding the components to be mounted are sequentially positioned corresponding to the component supply position A. . The components supplied to the component supply position A are sequentially taken out by the mounting heads 8 of the component mounting means 7a and 7b,
They are simultaneously mounted on a pair of circuit boards 9a and 9b fixed and positioned on each of the moving bodies 12a and 12b.

In this series of component mounting operations, each component mounting means 7
When the parts a and 7b take out the parts at the respective part supply positions A, it is inevitable that the relative holding positions of the parts are shifted from each other. The stop position of the head 8 is set as the component recognition position C, and the holding position of the component is recognized by the recognition unit as appropriate. Based on the position recognition, the position of each of the moving bodies 12a and 12b in the positioning unit 10 is controlled by a control unit (not shown). By adjusting the values, components can be accurately mounted on the circuit boards 9a and 9b.

In the component supply unit 2, each component supply unit 5
If there is an error in the left-right direction or the front-back direction of the stop position with respect to the component supply position A, the control unit (not shown) adjusts the stop position of each moving body 4 in a necessary direction, thereby The stop position of the component supply unit 5 can completely match the supply position A.

In the case where any one of the component supply units 5 has run out of components, the mobile unit 4 on which the component supply unit 5 is mounted is retracted to the standby position and the same component supply unit 5 is mounted at the same time. The component mounting operation is restarted by moving the waiting mobile unit 4 to the supply operation position and performing the replacement. At this time, the moving bodies 4 can move independently of each other through an arbitrary moving route, so that the moving bodies 4 can be quickly replaced. Thus, the component mounting operation can be continued with only a short interruption, and the productivity of component mounting can be maintained high. Further, even when the type of the circuit board 9 is changed, it is possible to promptly respond by the same replacement operation.

Further, since the switching operation of the mobile unit 4 does not require a complicated operation and the switching operation can be performed in a short time, even if the number of the mobile units 4 is large, the switching operation does not require a long time and is frequently performed. A great effect can be obtained by applying the present invention to a component mounting line for multi-product small-quantity production in which a large number of products are switched.

In the above embodiment, the guide table 3 is used as the component supply unit 2.
Although the example in which the plurality of moving bodies 4 are arranged has been described above, the present invention can also be applied to a moving body using a movable base that moves in one direction along a guide frame as in the related art.

Further, in the above embodiment, high-pressure air is blown out between the moving bodies 4, 12a, 12b and the guide tables 3, 11, and the moving bodies 4, 12a,
Although an example was shown in which a and 12b were floated and supported movably,
You may make it magnetically levitate.

EFFECTS OF THE INVENTION According to the component mounting apparatus of the present invention, since a plurality of mounting means operating in synchronization with each other are provided in parallel, component mounting can be performed efficiently, and each mounting means supplies each component. Even if a relative displacement occurs in the holding position when holding the component at the position, the component position is recognized between the component supply position and the component mounting position, and the position of each moving body in the positioning means is determined based on the recognized position. By individually adjusting the components, components can be accurately mounted on a plurality of mounted members fixed on each moving body, and there is no need to provide a mechanical component positioning means or the like in the mounting means. , Simple configuration
Lightweight, high-speed mounting is possible, and there is no restriction on the type of components. Furthermore, even if the total number of parts used increases, the expansion of the parts supply unit can be suppressed as in the conventional equipment, and the space of the entire equipment can be saved.
In addition, by moving a plurality of component supply devices individually, the weight of each component supply device can be reduced and a high-speed movement operation can be performed.

[Brief description of the drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a plan view showing a schematic configuration of the entire component mounting apparatus, FIG. 2 is a perspective view of a positioning means, and FIG. FIG. 4 is a perspective view showing the structure of the moving body, FIG. 5 is an explanatory view of the principle of movement of the moving body, and FIGS. 6 and 7 are schematic structures of a conventional component mounting apparatus. FIG. 1 ... component mounting machine, 7a, 7b ... component mounting means, 9, 9a,
9b ... circuit board, 10 ... positioning means, 11 ... guide plate, 12a, 12b ... moving body, A ... parts supply position, B ...
… Component mounting position.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Osamu Hikita 1006 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-2-207600 (JP, A) JP-A-58- 138091 (JP, A) JP-A-64-64399 (JP, A)

Claims (1)

(57) [Claims] A plurality of mounting means operating in synchronism with each other, each mounting means being provided with a plurality of mounting heads around a rotating body which is intermittently rotatable about a vertical axis, wherein each of said rotating bodies is provided. Is intermittently rotated to take out each component from the component pick-up position of the component supply unit at the component supply position for each predetermined mounting means by each of the mounting heads, and then at the predetermined component mounting position for each mounting means. What is claimed is: 1. A component mounting apparatus for mounting components on a member to be mounted positioned by positioning means, wherein the component supply unit includes a plurality of moving bodies on which a plurality of component supply devices having components of the same type are mounted. And each of the moving bodies is configured to be movable independently on a predetermined plane in an arbitrary direction so that each component supply device on which a desired component is mounted is positioned with respect to each component supply position. The positioning The means comprises a plurality of movable bodies capable of holding the mounted objects, each movable body being independently movable in an arbitrary direction on a fixed plane, and each of the held mounted objects being mounted on each of the components. A component mounting apparatus characterized in that it is configured to be positioned simultaneously with respect to a mounting position.