JPS6320040B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for automatically assembling electronic components onto a printed circuit board or the like.

Conventionally, the method of supplying parts has been a very difficult problem in electronic parts assembly lines. For example, there is a method of lining up parts using a parts feeder, arranging them on a chute, and then using a robot or the like to directly take them out and assemble them onto a printed circuit board, etc. However, if a problem occurs with the parts feeder or chute, the assembly line This resulted in the entire plant being shut down, resulting in a decline in operating rates. Also,
Even when using parts packed in a magazine, troubles occur within the magazine, in the chute, and in the automatic magazine exchange section, resulting in a reduction in the operating rate of the entire assembly line.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method for automatically assembling electronic components that can eliminate such conventional inconveniences. For this reason, in the present invention, various electronic components are prepared in advance in required quantities on component conveyance pallets, and a component supply conveyor is provided parallel to an assembly conveyor that conveys objects to be assembled such as printed circuit boards. The above component transport pallet containing electronic components is supplied to the assembly conveyor, the component transport pallet and the object to be assembled are positioned with high precision at each assembly station, and the electronic component lead terminals are connected to the component transport pallet at each assembly station. The electronic component is characterized in that it is accurately positioned by a lead terminal guide provided on a conveyance pallet, and a robot or the like is used to take out the electronic component from the component conveyance pallet and assemble it to the object to be assembled.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a pallet 2 for conveying parts from a pallet supply device 1 for conveying parts to a predetermined position is transferred to a first pallet conveyor 3.
supply to. The pallet 2 for transporting parts supplied to the pallet transport conveyor 3 is stopped at each transfer station by a pallet stopper 7 of each assembly station. At each transfer station, parts 1 are transferred from the parts magazine 5 or parts feeder 6 to the shooter 11 as shown in Fig. 2.
2 and transfer it to the transfer unit (e.g. P&
P unit) grab it with finger 13 of 10,
The parts are transferred to a predetermined position on the pallet 2 for transporting parts.
The parts transport pallet 2, on which the parts 12 have been transferred at the final transfer station, is sequentially sent to a parts transport pallet stocker 9 and stocked therein. In addition, in FIG. 1, 4 is a magazine stocker.

An example of the parts conveying pallet 2 used here is shown in FIGS. 3 to 5. In this pallet 2, the electronic components 12 and 15 are inserted into the lead terminal guide holes 18 and held with an accuracy within ±0.1 mm. When inserting the components 12 and 15 into the component transport pallet 2, the component guide 16, the component side guides 14 and 17, and the lead terminal guide hole 18 are each chamfered, so the components 12 and 15 can be roughly positioned. Even with the chuck method, it can be easily inserted without causing insertion failure.

The parts 12, 15 prepared in this manner and stored in the parts transport pallet stocker 9 are then transported manually or by a transport device such as a robot into a parts transport pallet as shown in FIG. The parts are supplied to a supply device 1, and further supplied from this component conveyance pallet supply device 1 to a second pallet conveyor 8. Here, 25 is a printed circuit board conveyor, and the pallet conveyor 8 is installed parallel to this printed circuit board conveyor 25. The printed circuit board 22 is the supply device 21
The printed circuit board is then supplied to the printed circuit board conveyor 25.

The printed circuit board 22 and the component transport pallet 2 supplied from the supply device 21 are stopped as a pair by the stoppers 24 and 7 at each assembly station, respectively. The stopped printed circuit board 22 and component transport pallet 2 are positioned by a printed circuit board positioning device 26 and a pallet positioning device 20, respectively. Thereafter, at each assembly station, the robot 23 takes out the components from the component transport pallet 2 and inserts them into the printed circuit board 22. The pallet positioning holes 19 and the component lead terminal guide holes 18 are machined with such precision that there is no problem in inserting the components into the board, so the robot 23 can directly remove the components from the component transport pallet 2. It can be taken out and inserted into the printed circuit board 22.

Printed circuit board 22 and parts transport pallet 2 that have been supplied and inserted at the final assembly station
are stored in the printed circuit board stocker 27 and the pallet stocker 9 for transporting parts, respectively. The pallets 2 for transporting parts stored in the pallet stocker 9 for transporting parts are returned to the parts supply section,
The parts are again supplied to the pallet conveyor 3 by the pallet supply device 1 for conveying parts. According to this assembly method, the necessary quantities of various electronic components are prepared in advance on the component transport pallet 2, and the component transport pallet 2 is supplied to the component supply conveyor 8 installed parallel to the assembly conveyor. By performing assembly, it is possible to eliminate troubles during component supply in the component assembly department, and it is possible to greatly improve the operating rate of the entire assembly line. Furthermore, when parts are supplied from the parts supply section to the pallet 2, the shape of the guide allows for easy supply. Furthermore, when parts are taken out from a pallet and inserted into a workpiece, they can be inserted accurately.

As described above, according to the present invention, the component supply section is separated from the component assembly section, and in this component supply section, various electronic components are prepared in advance on a pallet for transporting components in the required quantity, and furthermore, they are Various components are accurately positioned using lead terminal guides, and a component transport pallet holding electronic components is fed to a component supply conveyor installed parallel to the assembly conveyor to be assembled at an assembly station. By doing so, it is possible to eliminate troubles in parts supply in the parts assembly department, and it is possible to greatly improve the operating rate of the entire assembly line.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a parts supply section of an automatic parts assembly device according to an embodiment of the automatic parts assembly method of the present invention, Fig. 2 is a side view thereof, and Fig. 3 is a part conveyance section after the parts are inserted. FIG. 4 is a partial perspective view of the pallet for transporting parts, FIG. 5 is a sketch of the empty pallet for transporting parts, and FIG. 6 is a plan view of the apparatus. DESCRIPTION OF SYMBOLS 1... Pallet supply device for parts transport, 2... Pallet for parts transport, 3... Pallet transport conveyor, 4... Magazine stocker, 6... Parts feeder, 8... Parts supply conveyor, 21...
Printed circuit board supply device, 22...Printed circuit board,
23... Robot, 25... Assembly conveyor.

Claims (1)

[Claims] 1 The parts supply section and the parts assembly section are separated, and in the parts supply section, parts with lead terminals supplied from a parts feeder magazine, etc. are transferred to a parts transport pallet by a transfer device, and the parts On the conveyance pallet, the lead terminals of various parts are positioned by lead terminal guides provided on the above-mentioned component conveyance pallet, and in the component assembly department, a component supply conveyor is installed parallel to the assembly conveyor that conveys the objects to be assembled. , the parts transporting pallet that has been supplied with parts is fed onto the parts supplying conveyor by a transport device, the parts transporting pallet and the object to be assembled are moved as a pair on each of the above conveyors, and the parts are moved on each conveyor as a pair. A method for automatically assembling parts, characterized in that the object to be assembled and a pallet for transporting parts are positioned at an assembly station, and the parts are taken out from the pallet for transporting parts at the assembly station and assembled into the object to be assembled.