JPH05291792A - Parts fitting method - Google Patents

Abstract

PURPOSE:To reduce traveling distance of a parts fitting device by fitting first parts consecutively according to an arrangement order of a plurality of small printed circuit board patterns, at the same time tracing the arrangement order of the small printed circuit board pattern inversely, and repeating forward and backward orders alternatively. CONSTITUTION:First parts are consecutively fitted from a first small printed circuit board pattern A to a last small printed circuit board pattern D according to the arrangement order of small printed circuit board patterns A, B, C, and D. Then, second parts are fitted from the last small printed circuit board pattern D to the first small circuit board pattern A by tracing the arrangement order of the small printed circuit board patterns A, B, C, and D inversely. Then, third parts are fitted from the small printed circuit board pattern A to the small printed circuit board pattern D again. In the same manner, parts are fitted alternately and repeatedly in forward and backward directions, thus fitting all parts and hence reducing traveling distances of a parts fitting nozzle and a printed circuit board supporting device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit board used for electronic equipment, which is of a type that is divided into a plurality of small boards after mounting the parts, that is, a method for mounting the parts on a multi-sided board.

[0002]

2. Description of the Related Art It is now widely practiced to make a plurality of small board patterns on one board, mount the components, and then divide the board to obtain a plurality of small boards. Examples appearing in the literature include Japanese Patent Laid-Open Nos. 64-47100 and 1-103.
709, JP-A-1-105600, and JP-A 1-212498.

[0003]

There are two methods for assembling the mounting sequence when mounting the components on the multi-chamber substrate. One is to concentrate the work on a specific small board pattern, and after mounting all the parts on this small board pattern,
This is a method of starting the component mounting to the next small board pattern, which is called a pattern repeat method. The second is a method of mounting parts of a specific type on all small board patterns, and then mounting parts of the next type on all small board patterns again. Is called a step and repeat system. A more efficient method will be adopted according to the board design, the component arrangement, the characteristics of the component mounting apparatus, etc. Here, the pattern of component mounting by the step-and-repeat method will be described with reference to FIG. . In the figure, A, B, C, and D are small board patterns arranged in a "T" shape on the multi-chambered board. The small board patterns A, B, C and D have the same standard, and the same type of components are mounted at the same position. Reference numerals 1, 2, and 3 indicate component mounting positions. The conventional method is A, B, C, D
Place the component in position 1 in each small board pattern in the order of,
After that, the process returns to A again, and the component to the position 2 is started. After the component mounting at the position 2 is completed up to the pattern D, the process returns to A and the component mounting at the position 3 is started. However, with this method, the distance from the work end position to the start position for the next work is long, which is an obstacle to shortening the work tact.

[0004]

According to the present invention, the first component is sequentially mounted from the first small board pattern to the last small board pattern in accordance with the arrangement order of the small board patterns. As for the second part, the mounting order is started from the last small board pattern to the first small board pattern, the arrangement order of the small board patterns is reversed, and the same order is obtained. Parts are mounted while alternately repeating the reverse order.

[0005]

[Function] The same small board pattern can be used for the mounting work of the next step.
Since it is started in the process, the moving distance of the component mounting nozzle or the substrate supporting device is shortened, and the working tact can be shortened.

[0006]

Embodiment An embodiment will be described with reference to the drawings. The component mounting apparatus 10 of FIG. 2 has its components laid out as shown in FIG. In FIG. 3, reference numeral 12 is a suction device, 14 is a component supply device, 16 is a supply-side substrate transfer device, 18 is a storage-side substrate transfer device, and 20 is a substrate positioning device. The substrate positioning device 20 is mainly composed of an XY table, and is connected to the substrate (multi-chamber substrate) from the supply-side substrate transfer device 16
22 is received, and the component mounting locations of the substrate 22 are sequentially positioned at the work points. After mounting all the required components, the board positioning device 20 delivers the board 22 to the storage-side board transfer device 18.

The component supply device 14 is formed by arranging a plurality of component supply units 26 on a movable support 24 that moves linearly. Tapes, magazines, bulk hoppers, etc. are currently widely used as the parts supply system, but any of them may be used. The suction device 12 is provided with a plurality of mounting heads on the peripheral edge of the rotary index table, but since this configuration is well known, detailed description thereof will be omitted.

FIG. 4 shows a control system of the component mounting apparatus 10. Reference numeral 30 is a control unit including an arithmetic processing unit 32 and a memory 34. The control unit 30 includes a suction device 12, a component supply device 14, a supply-side substrate transfer device 16, a storage-side substrate transfer device 18, a substrate positioning device 20, a component position regulating device 36, a data input unit 38, and a key. A board 40 is connected via an input / output interface 42.

The order of mounting components on the multi-sided board 22 is as follows. As shown in FIG. 1, in the order of small board patterns A, B, C and D, the first component is first mounted at the position 1. Next, the second component is mounted at position 2. This time, the mounting is started from small board pattern D, the order is reversed, and the work of this step is carried out with small board pattern A. To finish. Subsequently, when mounting the third component at the position 3, the work is started again from the small board pattern, and the work is finished with the small board pattern D. In this way, all the components are mounted while alternately repeating the normal and reverse component mounting.

[0010]

According to the present invention, there are many movements within the same small board pattern, and the number of times of jumping over the boundaries of the small board patterns can be reduced in proportion thereto, which is effective in shortening the working time. .

[Brief description of drawings]

FIG. 1 is a top view of a multi-panel board showing a component mounting procedure according to the present invention.

FIG. 2 is a perspective view of a component mounting device.

FIG. 3 is a diagram showing a layout of components of the component mounting apparatus.

FIG. 4 is a block diagram showing a control system of the component mounting apparatus.

FIG. 5 is a flowchart for determining a mounting order.

FIG. 6 is a top view of a multi-sided board showing a component mounting procedure according to the present invention.

[Explanation of symbols]

 22 Multi-Chamfering Board A Small Board Pattern B Small Board Pattern C Small Board Pattern D Small Board Pattern

Claims (1)

[Claims] 1. A method for mounting a component on a multi-chambered substrate, which is divided into a plurality of small substrates after component mounting by a step-and-repeat method, wherein the first component is the first small substrate pattern. From the last small board pattern to the last small board pattern in order according to the arrangement order of the small board patterns, and for the second component, the mounting starts from the last small board pattern to the first small board pattern. The component mounting method is characterized in that the sequence of arranging the small board patterns is reversed until the same time, and the components are mounted while alternately repeating the forward order and the reverse order in the same manner.