JPH04324698A - Irregular-shaped smd mounting machine - Google Patents

Abstract

PURPOSE:To provide an irregular-shaped SMD mounting machine which can automatically mount great many kinds of irregular-shaped SMDs. CONSTITUTION:A tray housing shelf 10 which can accommodate a large number of trays 14 containing a plurality of SMDs 18 is provided. A component taking- out robot 20 which is provided with an sucking nozzle and is movable in three axes X, Y, and Z is provided in front of the shelf 10 and the robot 20 takes out the component indicated by a personal computer 54 from one of the trays 14 and places the component on the component recognition stage 42 of this irregular-shaped SMD mounting machine 1. Then the mounting hand 46 of a mounting robot 44 attracts by suction the component on the stage 42 and places the component on a desired position of a printed wiring board 50.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an odd-shaped SMD mounting machine that automatically mounts odd-shaped surface mount components (hereinafter referred to as odd-shaped SMD) such as QFPs and capacitors on printed wiring boards.

Electronic equipment such as communication equipment is generally constructed by mounting a printed wiring board unit (electronic circuit package) in which electronic circuit components are mounted on a printed wiring board on a shelf. Particularly in the field of industrial products such as communication equipment, the diversification of customer needs has spurred the trend toward a greater variety and smaller quantity of printed wiring board units, and this has led to the automatic installation of a wide variety of different types of SMDs such as QFPs. Variant S that can be
There is a demand for the development of an MD-equipped machine.

0003

[Prior art] Conventional machines equipped with irregularly shaped SMDs are equipped with irregularly shaped SMDs.
A plurality of SMDs are stored in a tray, and these trays are stored in a tray storage shelf that is movable in the horizontal and vertical directions, and the irregularly shaped SMD is taken out by a parts extraction hand provided at a predetermined position, and the parts are placed on a recognition stage. After recognizing
The onboard robot places the irregular shape S on the printed wiring board at a predetermined position.
It is configured to be equipped with an MD.

0004

[Problem to be solved by the invention] However, the conventional variant S
The MD-equipped machine has the following problems because it has a configuration in which the component take-out hand is provided at a predetermined position and the tray storage shelf is moved.

(1) At most, only 40 types and 40 trays of irregularly shaped SMDs can be loaded at once. (2) Since the stock amount of each part is small, it is necessary to replenish parts in a complicated manner. (3) Since the types of parts that can be loaded at one time are limited, the trays containing the parts must be replaced, making long-term unmanned operation impossible.

[0006] The present invention has been made in view of the above points, and its purpose is to provide an odd-shaped SMD mounting machine that can automatically mount an extremely wide variety of odd-shaped SMDs. .

[0007]

[Means for Solving the Problems] The present invention provides an odd-shaped SMD mounting machine that takes out an odd-shaped SMD housed in a tray from the tray and mounts the odd-shaped SMD at a predetermined position on a printed wiring board by a mounting robot. A tray storage shelf capable of accommodating a plurality of trays containing a plurality of trays is provided, and a parts extraction robot having a suction nozzle and movable in three axes of XYZ is provided adjacent to the tray storage shelf. .

[0008]

[Function] The present invention fixes the tray storage shelf and uses a component extraction robot that takes out irregularly shaped SMDs from the tray storage shelf.
Since it is movable in the YZ three-axis directions, a large number of trays can be set in the tray storage shelf at once, and long-term unmanned operation is possible without replacing the trays.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, a plan view of an embodiment of the present invention is shown. 10 is a fixed tray storage shelf;
There are two. As shown in FIG. 2, the tray storage shelf 10 includes a plurality of guide members 12 at predetermined intervals.
are attached, and these guide members 12 support a tray 14 containing a plurality of QFPs 18. The tray 14 is provided with a partition member 16, and one QFP 18 is accommodated in each pocket divided by the partition member 16.

The tray 14 is fed from the rear side of the tray storage shelf 10 as shown by arrow A in FIG. be done.

[0012] In front of each tray storage shelf 10, a parts take-out robot (handling robot) 20 movable in the XYZ directions is provided. Parts extraction robot 2
0's hand 22 is moved in the direction of arrow Y in FIG. Figure 4
To explain the hand 22 part in more detail with reference to
An air cylinder 24 is attached to the parts removal robot 20, and a piston rod 26 of the air cylinder 24
An arm member 28 is attached to the tip.

A reversible motor 30 is provided within one end 28a of the arm member 28, and a pulley 34 attached to the output shaft 32 of the reversible motor 30 and a pulley 34 provided at the other end of the arm member 28 are connected to each other. Pulley 3
A belt 38 is looped around 6. belt 3
A suction nozzle 40 is attached to 8.

When the air cylinder 24 is actuated, the piston rod 26 extends, thereby causing the arm member 28 to move as shown in FIG.
, the QFP 18 is moved to the left and the suction nozzle 40 suctions the QFP 18 . Next, when the piston rod 26 is contracted, the arm member 28 is moved to the right in FIG. The QFP 18 is further moved to the right side, and by releasing suction on the component recognition stage 42, the QFP 18 can be placed on the component recognition stage 42.

Referring again to FIG. 1, the odd-shaped SMD mounting machine 41 is provided with two component recognition stages 42 for optically recognizing components, corresponding to each component take-out robot 20.

Reference numeral 44 denotes a mounting robot that can move in the XYZ directions and rotational directions, and a mounting hand 46 is provided with a suction nozzle (not shown), and the mounting hand 46 sucks the components placed on the component mounting stage 42. and mount it at a desired position on the printed wiring board 50.

The printed wiring board 50 is carried to a predetermined position of the odd-shaped SMD mounting machine 41 by a return type conveyor 48. Reference numeral 52 denotes an operating section of the mounted robot 44 provided with push button switches and the like.

[0018] Parts extraction robot 20 and irregularly shaped SMD
The operation of the loading machine 41 is controlled by a personal computer (hereinafter abbreviated as a personal computer) 54. The control system of the present invention will be briefly described with reference to the block diagram of FIG.

In the computer 54, what kind of odd-shaped SMs are stored in the tray 14 stored at which position on the tray storage shelf 10?
Information as to whether D is accommodated is input in advance, and that information is stored in the memory. The parts picking robot 20 is controlled by a personal computer 54 via a programmable controller 56.

On the other hand, the component recognition stage 42, mounting robot 44, mounting hand 46, conveyor 48, and operation section 52 of the odd-shaped SMD mounting machine 41 are also controlled by a personal computer 54 via a programmable controller 58.

The operation of the embodiment of the present invention constructed as described above will be explained below.

QFP 18 to be mounted on the tray storage shelf 10
A large number of trays 14 containing all the trays are set from the rear side of the tray storage shelf 10 shown by arrow A. one tray 14
All the QFP18s of the same type are accommodated, and the PC 5
4 stores the setting positions of each type of tray 14 as a database, and when the personal computer 54 instructs each programmable controller 56, 58 about the type of component to be mounted, the instructions operate as follows.

[0023] First, the parts take-out robot 20 takes out the designated QFP from the tray storage shelf 10 without moving the tray 14, and places it on the parts recognition stage 42 of the odd-shaped SMD mounting machine 41.

The component recognition stage 42 optically recognizes whether or not the mounted component is the component specified by the personal computer 54 .

QF placed on the component recognition stage 42
When P is recognized as the designated part, the loading hand 46 of the loading robot 44 is moved onto the component recognition stage 42, and the QFP 18 on the component recognition stage 42 is sucked by the suction nozzle of the loading hand 46.

The loading robot 44 moves the QFP attracted by the loading hand 46 to a desired mounting position on the printed wiring board 50, lowers the hand 46, and places the QFP on the printed wiring board 50.
QFP18 is mounted on top.

After the QFP on the component recognition stage 42 is picked up by the loading hand 46 of the loading robot 44, the component take-out robot 20 takes out the next QFP from the tray 14 and places it on the component recognition stage 42.

The empty tray 14 from which the QFPs 18 have been removed is dropped toward the front of the tray storage shelf 10 as indicated by arrow B using the parts removal robot 20.

The tray storage shelf 10 of this embodiment has 80 types of trays 14, each containing 5 different QFPs 18.
It can accommodate a total of 400 trays.

[0030]

[Effects of the Invention] As described in detail above, the present invention has a fixed tray storage shelf, and the odd-shaped SMD to be mounted is taken out from the tray by a parts takeout robot that can move in the XYZ directions. Various kinds of irregularly shaped SMDs can be stored in the tray storage shelf, and there is an effect that unmanned automatic operation for a long period of time is possible.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a schematic front view of a tray storage shelf.

FIG. 3 is a side view of the tray storage shelf.

FIG. 4 is a schematic configuration diagram of the hand section of the take-out robot.

FIG. 5 is a block diagram of a control system.

[Explanation of symbols]

10 Tray storage shelf 14 Tray 18 QFP 20 Parts extraction robot 22 Hand 41　Uniform SMD equipped machine 42 Parts recognition stage 44 Loaded robot 46 Equipped with hand 48 Conveyor 50 Printed wiring board 54 PC

Claims (2)

[Claims] [Claim 1] Irregular shape S housed in a tray (14)
A plurality of odd-shaped SMDs (18) are loaded in an odd-shaped SMD loading machine that takes out an MD (18) from a tray (14) and mounts the odd-shaped SMD (18) at a predetermined position on a printed wiring board (50) by a loading robot (44). The tray containing the pieces (
A tray storage shelf (10) capable of accommodating a plurality of trays (14) is provided, and a component extraction robot (20) having a suction nozzle (40) and movable in three axes of XYZ is installed adjacent to the tray storage shelf (10). Irregular SM characterized by being provided with
D-equipped machine. 2. The suction nozzle (40) is attached to an extendable arm member (28) and is movable between an arbitrary position of the tray storage shelf (10) and the component recognition stage (42). The machine equipped with a modified SMD according to claim 1.