JPH0763116B2 - Electronic component mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus, and more particularly, to an electronic component mounting apparatus including a transfer head for mounting electronic components on a substrate and a parts feeder for storing electronic components. Regarding the device.

2. Description of the Related Art As an electronic component mounting device for automatically mounting chip-type electronic components on a substrate, a parts feeder equipped with electronic components is placed outside the conveyor for transferring substrates, and the transfer head is set horizontally and vertically. It is widely practiced to pick up electronic parts of the parts feeder while moving the parts feeder, and transfer and mount the electronic parts on a substrate positioned on a conveyor.

Hereinafter, a conventional electronic component mounting apparatus will be described with reference to FIGS. 4 and 5.

FIG. 4 is a plan view of the electronic component mounting apparatus in the case where the electronic component 2 is mounted on the substrate 1A having a large width W1, and is provided on both outer sides of the pair of left and right substrate transfer conveyors 3 and 4, which are parallel to each other.
A large number of parts feeders 5 and 6 are arranged. The substrate 1A that has been conveyed in the X direction (illustration) on the horizontal plane is positioned between the conveyors 3 and 4. Next, the transfer head 7 picks up the electronic components 2 provided in the part feeders 5 and 6 while moving in the XY directions and mounts them on the substrate 1A at predetermined coordinate positions. Q1A and Q2A are movement loci of the transfer head 7, and N1 and N2 are pickup positions of the electronic component 2.

FIG. 5 shows a case where the board type is changed from the board 1A to the board 1B having a smaller width W2. in this case,
One of the conveyors 4 is moved in the lateral direction of the board orthogonal to the board conveying direction to adjust the distance between the conveyors 3 and 4, and then the transfer head 7 is used to transfer the electronic components 2 of the parts feeders 5 and 6 to the board 1B. It is transferred to and mounted on.

Problems to be Solved by the Invention However, in the conventional device, from the large substrate 1A shown in FIG.
When the type of board is changed to the small board 1B shown in FIG. 5, an unnecessary distance L between one conveyor 4 and the parts feeder 6
Therefore, the transfer head 20 for transferring and mounting the electronic component 2 of the parts feeder 6 on the conveyor 4 side onto the substrate 1B.
The length of the locus Q1B, that is, the moving stroke, is considerably longer than the length of the locus Q1A in the case of FIG. 4, and the cycle time is lengthened accordingly, and the work efficiency is lowered.

Therefore, the present invention solves the problems of the above conventional means,
An object of the present invention is to provide electronic component mounting capable of shortening mounting time by allowing electronic components of a parts feeder to be transferred and mounted on a substrate with a shorter moving stroke of a transfer head even if the size of the substrate is changed. To do.

Means for Solving the Problems In the present invention, a pair of left and right substrate transfer conveyors that are parallel to each other, and a supporting unit that supports a part feeder that stores electronic components and is arranged on both outer sides of the substrate transfer conveyor, respectively. An electronic component mounting apparatus comprising: a transfer head that moves in a horizontal direction and a vertical direction to pick up an electronic component of a parts feeder and transfers and mounts the electronic component on a substrate that is conveyed by a substrate conveyer conveyor. At least one of the conveyors is movable in the width direction of the substrate perpendicular to the conveying direction, and the supporting means corresponding to the movable conveyor is coupled to the movable conveyor to move integrally with the conveyor. It is possible and further comprises moving means for moving the movable conveyor and the supporting means integrally.

Further, the moving means has a position detecting device for detecting the moving distance of the pickup position accompanying the movement of the conveyor and the supporting means.

Action According to the above configuration, the movable conveyer is moved along with the change in the substrate size, and the parts feeder is also moved in the same direction as the movable conveyer so that the parts are moved closer to the substrate side.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the electronic component mounting apparatus of the present invention. Reference numerals 3 and 4 denote a pair of left and right substrate transfer conveyors that are parallel to each other, and a substrate 1A having a width W1 is positioned between them. Reference numeral 11 is a conveyor belt provided on the conveyors 3 and 4, and 12 is a drive motor.

Plate-shaped supporting means 13, 14 are provided on the conveyors 3, 4 as standing plates.
They are integrally connected via 15 and 16. This support means
A large number of parts feeders 5 and 6 are supported on 13 and 14, and these parts feeders 5 and 6 are located outside the conveyors 3 and 4.

The supporting means 13 and 14 are installed on the table 10. One supporting means 14 is movably mounted on a linear guide rail 21 provided on the table 10 in the Y direction (illustrated). A nut 22 is integrally formed on a side portion of the support means 14, and a ball screw 23 extending in the Y direction is screwed into the nut 22.

When the ball screw 23 is rotated by operating the handle 24 provided at the end of the ball screw 23, the conveyor 4 and the supporting means 14 move integrally in the Y direction, and the conveyor 3 and the conveyor 3 are moved according to the width of the substrate 1. 4 intervals are adjusted. Of course, the ball screw 23 may be rotated by a motor instead of being manually operated by the handle 24. Therefore, one of the conveyors 4 has a conveying direction X with respect to the other conveyor 3.
It is a movable conveyor that moves in the lateral width direction (Y direction) of the substrate 1 orthogonal to the.

At the other end of the ball screw 23, via a coupling 25,
For example, a position detection device 26 such as an encoder is mounted so that the movement amount of the conveyor 4 when the ball screw 23 is rotated can be detected.

Reference numeral 7 denotes a transfer head, which moves in the X direction, Y direction, and vertical direction on the horizontal plane while vacuum-sucking and picking up the electronic components 2 of the parts feeders 5 and 6 and transferring them to predetermined coordinate positions of the substrate 1A. Mount.

The embodiment of this electronic component mounting apparatus has the above-mentioned configuration, and its operation will be described below.

FIG. 2 shows a state in which the electronic component 2 is mounted on the large-sized board 1A having a large width W1. In this case, the transfer head 7 picks up the electronic components 2 of the parts feeders 5 and 6 while moving in the XY directions as indicated by the loci Q1A and Q2A, and transfers and mounts them on the substrate 1A at predetermined coordinate positions. N1A and N2A are pickup positions of the electronic component 2.

From the large-sized board 1A shown in FIG. 2 to the small-sized board 1B shown in FIG.
To change to, move the handle 24 in FIG. 1 to bring the movable conveyor 4 closer to the other conveyor 3 side,
Change the interval between conveyors 3 and 4 from W1 to W2. In this case, since the movable conveyor 4 and the supporting means 14 are integrally combined, the parts feeder 6 on the movable conveyor 4 side is
The movable conveyer 4 and the other conveyer 3 are approached integrally, and one pickup position is changed from N2A to N.
Move to 2B. Therefore, the unnecessary distance L as shown in FIG. 5 does not occur between the movable conveyor 4 and the parts feeder 6, and the transfer head 7 can transfer and mount the electronic component 2 of the parts feeder 6 on the substrate 1B with a short moving stroke.

Further, when the movable conveyor 4 and the supporting means 14 are integrally moved in the width direction of the substrate, and the parts feeder 6 on the movable conveyor 4 side is moved from the position shown in FIG. 2 to the position shown in FIG. The pick-up position of the electronic component 2 by N moves from N2A to N2B. Since this moving distance is detected by the position detection device 26, the electronic component 2 of the parts feeder 6 is picked up at the pick-up position N2B according to the data. The transfer stroke can be corrected by correcting the movement stroke of the transfer head 7 in the Y direction.

As described above, according to the present invention, the movable conveyor is moved according to the size change of the substrate, and the parts feeder on the supporting means connected to the conveyor is also in the same direction as the conveyor. Since it can be moved to, there is no unnecessary distance between the above conveyor and parts feeder,
Since the transfer head can transfer the electronic components of the parts feeder to the substrate with a short stroke, the mounting time can be shortened.

In addition, by configuring the position detection device that detects the movement distance of the pickup position due to the movement of the conveyor and the supporting means, the movement stroke of the transfer head for picking up the electronic components of the parts feeder at the pickup position is determined according to the data. It is possible to correct and perform the transfer and mounting work.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a plan view of essential parts of an embodiment of the present invention being mounted on a large-sized substrate, and FIG. 3 is the present invention being mounted on a small-sized substrate. FIG. 4 is a plan view of a main part of an embodiment of the present invention, FIG.
FIG. 5 is a plan view of an essential part of a conventional device being mounted on a small board. 1A, 1B ... Substrate, 2 ... Electronic parts, 3 ... Conveyor, 4
...... Movable conveyor, 5,6 …… Parts feeder, 7
...... Transfer head, 13,14 …… Supporting means, 22,23 …… Movement means, 26 …… Position detecting device.

Claims (2)

[Claims] 1. A pair of left and right board transfer conveyors which are parallel to each other, and support means which are respectively arranged on both outer sides of the board transfer conveyor to support parts feeders containing electronic components, and horizontal and vertical directions. An electronic component mounting apparatus comprising: a transfer head that moves to and picks up an electronic component of the parts feeder and transfers and mounts the electronic component on a substrate conveyed by the substrate conveyer, and at least the substrate conveyer; One is movable in the width direction of the substrate perpendicular to the carrying direction, and the supporting means corresponding to the movable conveyor is coupled to the movable conveyor and movable integrally with the conveyor. An electronic device further comprising moving means for integrally moving the movable conveyor and the supporting means. Article mounting apparatus. 2. The electronic component mounting apparatus according to claim 1, wherein the moving means has a position detecting device for detecting a moving distance of a pickup position accompanying the movement of the conveyor and the supporting means. .