JP2001015997A - Component mounting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use the CAD data of each circuit pattern when there are a plurality of circuit patterns on the same circuit substrate. SOLUTION: A circuit substrate that is composed by combining circuit patterns, coordinates zero-point data where the position relationship has been registered for individual coordinates zero points being fixed for each point for each circuit pattern, mounting coordinates data where mounting coordinates in each circuit pattern have been registered in reference to the coordinates zero point, and a component mounting method for calculating a mounting position by calculating a mounting position from coordinates zero point data and mounting coordinates data are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting method for an electronic component mounting apparatus for automatically mounting electronic components on a circuit board.

[0002]

2. Description of the Related Art FIG. 2 shows an electronic component mounting apparatus. Hereinafter, an example of a conventional mounting method will be described with reference to the drawings.

In FIG. 2, a columnar rotating body 28 is horizontally rotatable about its central axis 31 and a plurality of suction nozzles 29 are arranged around the rotating body 28 to suck a component. The component sucked by the suction nozzle 29 is the rotating body 28
With the rotation of, the light passes above the component presence / absence sensor 16 and the component position recognition camera 18.

[0004] The component presence / absence information recognized by the component presence / absence sensor 16 is determined by the computing unit 20 and then transmitted to the microcomputer controller 1.
7 and the microcomputer controller 17 when there is no part.
The process of mounting retry is performed. The component position information recognized by the component position recognition camera 18 is transmitted to the microcomputer control device 17 after being determined by the image processing unit 19, and is used to correct the positions of the x-axis motor 22 and the y-axis motor 23 in the xy table 21. Used.

Next, when the component sucked by the suction nozzle 29 reaches the position above the xy table 21 supporting the circuit board 24, the microcomputer control device 17
Then, the y-axis motor 23 is driven and positioned, and the components are mounted at predetermined positions on the circuit board.

Conventionally, in such an electronic component mounting apparatus, since the board has only one circuit board origin as a whole, the mounting position of all components has to be set from this circuit board origin. Did not get. For this reason, for example, even in a substrate having a plurality of different circuit patterns as shown in FIG. 9, the component mounting positions are set from the circuit substrate origin Gk. Details will be described below. The substrate shown in FIG. 9 includes a plurality of circuit patterns P1 and P2,
It is composed of two circuit board origins Gk.

On this substrate, the mounting position 5 (5a, 5b) on the circuit pattern P1 and another circuit pattern P2
Mounting position 6 (6a, 6b) of the circuit board origin Gk
The mounting position was calculated on the basis of the data and registered as mounting position data in the mounting program.

[0008]

However, in the above-described configuration, even if there is already CAD data of each of the circuit patterns P1 and P2 or data in which the mounting position of the circuit pattern is registered, the circuit board origin Gk is determined. As a criterion, all of the mounting coordinate data must be registered, and there is a problem that data diversion is low.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a component mounting method capable of effectively utilizing mounting coordinate data of each circuit pattern.

[0010]

In order to solve the above-mentioned problems, a component mounting method according to the present invention provides a method for mounting a plurality of different circuit patterns and one coordinate origin on each circuit pattern on a board having one circuit board origin. The position data of the plurality of coordinate origins is calculated as coordinate origin data with reference to the circuit board origin, and mounting coordinates for mounting components in a pattern are determined with respect to each coordinate origin for each circuit pattern. The mounting coordinate data based on the coordinate origin of each of the patterns, the coordinate origin data, and a preset origin offset of the mounting device origin and the circuit board origin. The mounting coordinates are calculated based on the origin of the component, and the component is mounted on the circuit board.

Thus, information for each pattern prepared in advance by CAD data or the like is used as mounting position data.
It can be used directly, and even if the arrangement of the pattern on the substrate is changed, it can be dealt with by changing only the coordinate origin data.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 2 is an example of a component mounting apparatus used in the present invention, which is the same as that described in the related art, and thus the description is omitted.

Here, a case where components are mounted on a circuit board as shown in FIG. 1 will be described in detail. The board 3 shown in FIG. 1 has one circuit board origin Gk and a plurality of different circuit patterns P
1 and P2, and coordinate origins G1 and G2 provided for each of the circuit patterns P1 and P2.

Prior to starting the operation shown in the flowchart of FIG. 3, the circuit board origin Gk is shifted from the origin Gm of the mounting apparatus.
The positional relationship up to this point is registered in advance as an origin offset L as shown in FIG. In this example, the circuit board origin Gk is set at an arbitrary position on the circuit board 3. In the example of this figure, it is the left corner. The coordinate origins G1 and G2 of the circuit patterns P1 and P2 are also set at arbitrary positions on the circuit patterns. Here, the position data of the coordinate origins G1 and G2 calculated based on the circuit board origin Gk are referred to as coordinate origin data 7 and 8.

Hereinafter, the flowchart of FIG. 3 will be described.
In step 40, it is checked whether coordinate origin data 7 and 8 are created. If the coordinate origin data already exists, the existing coordinate origin data is acquired in step 41; otherwise, the operator creates coordinate origin data 7 and 8 in step 42.

The coordinate origin data 7 and 8 are, for example, based on the circuit board origin Gk, respectively.
When the coordinate origins G1 and G2 are set as shown in FIG. 4, the coordinates of the coordinate origins G1 and G2 of the circuit patterns P1 and P2 with respect to the circuit board origin Gk are as shown in FIG. , The coordinates of the coordinate origin G1 (1c, 1
It is obtained by subtracting the coordinates (0x, 0y) of the circuit board origin Gk from d) and the coordinate origin G2 (2c, 2d), respectively.

Here, since the coordinates of the circuit board origin Gk are the origins, the coordinates are usually (0, 0), but are set to (0x, 0y) for the description of the above method. Next, in step 43, it is checked whether or not mounting coordinate data for mounting a component is to be created. Existing mounting coordinate data or
If there is CAD data of the circuit pattern, step 4
Acquired in 4. Otherwise, in step 45, the operator or the like registers the mounting coordinate data.

In step 46, coordinate origin data 7 and 8 shown in FIG. 5 and coordinate data 1a (1e, 1f) based on coordinate origins G1 and G2 shown in FIG.
1b (1g, 1h), 2a (2e, 2f) and 2b
Using (2g, 2h), the mounting position data is calculated based on the circuit board origin Gk. To this end, the coordinate origin data 7 (1c-0x, 1
d + 0y) or 8 (2c-0x, 2d-0y).

As a result, the mounting coordinates 1a become (1e + 1c-
0x, 1f + 1d-0y). Other coordinates can be calculated in the same manner, and the mounting coordinates of the circuit pattern P1 are shown in FIG. 7, and the mounting coordinates of the circuit pattern P2 are similarly shown in FIG. Note that coordinate data based on the coordinate origins G1 and G2 can be obtained from CAD data.

Although the circuit board 3 shown in FIG. 1 has been described as having two types and two types of circuit patterns, the present invention can be similarly applied to the case where the types and number of patterns are increased. Subsequently, the component is mounted at the mounting position calculated by the mounting means.

An unnecessary circuit pattern portion is mounted by setting a mounting position correction mark and a mounting position availability determination mark on a circuit pattern and calculating a mounting position while avoiding a circuit pattern that cannot be mounted. Instead, it is also possible to prevent parts from being wasted.

[0022]

As described above, according to the present invention, when components are mounted on a circuit board having a plurality of different circuit patterns, one coordinate origin is provided for each circuit pattern, and the coordinates are determined with reference to the circuit board origin. Is used as the coordinate origin data, and the mounting coordinates in each pattern can be calculated using the mounting coordinate data registered with reference to the coordinate origin, so that the mounting position of the component can be calculated. Can be directly used as the mounting position data, and even if the arrangement of the pattern on the substrate is changed, it is possible to obtain the effect that it is possible to respond by changing only the coordinate origin data.

[Brief description of the drawings]

FIG. 1 is a plan view showing a circuit board used in an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a component mounting apparatus used in an embodiment of the present invention.

FIG. 3 is an operation flowchart according to an embodiment of the present invention;

FIG. 4 is a diagram showing coordinate data of a coordinate origin of each circuit pattern based on the circuit board origin Gk of FIG. 1;

FIG. 5 is a diagram showing coordinate origin data calculated based on the circuit board coordinates Gk of FIG. 1;

FIG. 6 is a diagram showing the coordinates of the mounting position on each circuit pattern with reference to the coordinate origin of FIG. 1;

FIG. 7 is a diagram showing mounting coordinate data of a circuit pattern P1 calculated based on the circuit board coordinates Gk of FIG. 1;

FIG. 8 is a view showing mounting coordinate data of a circuit pattern P2 calculated based on the circuit board coordinates Gk of FIG. 1;

FIG. 9 is a plan view of a conventional circuit board.

[Explanation of symbols]

16 to 24, 28, 29, 31 Components of the component mounting means of the present invention 40, 41 Steps of acquiring coordinate origin data of the circuit board of the present invention 43, 44 Steps of acquiring mounting coordinate data of the present invention 46 The first step of calculating the mounting position by the mounting position calculating means for calculating the mounting position from the coordinate origin data and mounting coordinate data of step 47. Mounting the components on the circuit board according to the mounting position obtained by the mounting position calculating means of the present invention. Second step

Continuing from the front page (72) Inventor Pro. Konishi 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. F-term (Reference) 5E313 AA01 AA11 CC03 CC04 CD06 EE02 EE03 EE24 EE25 EE50 FF24 FF26 FF28 FF29 FF32 FG01

Claims (1)

[Claims] 1. A circuit board having one circuit board origin, wherein a plurality of different circuit patterns and one
Two coordinate origins, position data of the plurality of coordinate origins are calculated as coordinate origin data with reference to the circuit board origin, and mounting coordinates for mounting components in a pattern are set for each of the circuit patterns. Set based on the origin, the mounting coordinate data based on the coordinate origin of each pattern, the coordinate origin data, and the origin offset of the mounting device origin and the circuit board origin set in advance. , Calculate the mounting coordinates based on the origin of the mounting device,
A component mounting method comprising mounting components on a circuit board.