JPH10335894A - Method of mounting component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid stoppage of apparatuses, when waiting for replacing components by sending various mounting information to a supplementary mounting apparatus in the event of a trouble, such as lack of components at a mounting apparatus, and working the supplementary apparatus to mount according to the information sent. SOLUTION: Mounting apparatuses 1, 2, 3 are series coupled on a mounting line from the upstream and have one feeder each for mounting components. At the downstream of the mounting apparatuses 1-3, supplementary mounting apparatus 4 are disposed and have feeders capable of mounting many cassettes which sufficient for mounting all the components of the mounting apparatus 1-3. In the event of a trouble such as lack of components at each mounting apparatus 1-3, various mounting information are sent to the supplementary apparatus 4 to supplementarily mount the lacked components according to the sent information. This avoids stoppage apparatus, when waiting for replacing components.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting method using an electronic component mounter.

[0002]

2. Description of the Related Art In recent years, with the progress of electronics, electronic component mounting machines have also been improved to improve productivity. For example, since the operation of the electronic component mounter is not stopped during component replacement when components run out,
It has multiple parts supply units to enable continuous production.

A conventional component mounting method of this type will be described with reference to FIGS. FIG. 3 is an external view of the electronic component mounter. In FIG. 3, reference numeral 11 denotes a head having a plurality of nozzles 12, which intermittently rotates to mount (adsorb and mount) components. Reference numeral 12 denotes a nozzle,
The component is sucked from 5 and the component is mounted on the printed circuit board.
An XY table 13 fixes a printed circuit board on which components are mounted and positions it below the nozzle 12. 14L ・ 14
R is a supply unit, and a plurality of cassettes 1 in which the same parts are set.
5 are mounted in the same arrangement and position the desired cassette 15 below the nozzle 12. Reference numeral 15 denotes a cassette in which components are set. Reference numeral 17 denotes a controller that controls the entire electronic component mounter.

Further, the supply unit can supply components only at the position 14L in the figure, and at this time, the supply unit is referred to as being selected. Further, at the position 14R in the figure, replacement and replenishment of parts are performed, and at this time, the supply unit is referred to as waiting. Supply units 14L and 1
4R is alternately being selected / standby, and when the supply unit 14L moves to the right position in FIG. 3 and becomes selected, the supply unit 14R becomes standby, and the supply unit 14R moves to the left position and becomes selected. Then, the supply unit 14L is on standby.

Next, a conventional component mounting method will be described with reference to a flowchart of FIG. First, when component mounting starts, one of the supply units is selected in # 40. Here, the supply unit 14L on the left side is selected for explanation. The supply unit 14L is moved to a predetermined cassette 15 in # 41, and the nozzle 12 sucks components from the cassette 15 in # 42. In step # 43, the presence or absence of a component is determined. If there is a component, the component is mounted on the printed circuit board in step # 44, and the operations in and after step # 41 are repeated.

If it is determined in step # 43 that there is no part, # 4
5, the cassette (component) is stored as a component exhaustion, and mounting cannot be continued in the currently selected supply unit 14L.
At 6, it is determined whether the other supply unit 14R has been selected. If it is not selected here, the other component supply unit does not run out, so the other component supply unit 14R is selected in # 47,
The operation after # 41 is continued.

If the other component supply unit has already been selected in # 46, the other component is also running out of components, making it impossible to continue mounting. Therefore, in # 48, the operation of the equipment of the electronic component mounting apparatus is stopped, a warning indicating that the component has run out is displayed, and thereafter, replacement (replenishment) of the component by the operator is awaited.

[0008]

However, in the above component mounting method, the operator cannot always complete the component replacement (replenishment) in a timely manner, and if the component replacement is not performed at a predetermined timing, the component replacement is not performed. Due to the replacement waiting, the standby part supply unit does not become operable and production stops. For example, in FIG. 3, the part A runs out during production in the left supply unit 14 </ b> L, and then the right supply unit 1 </ b> L.
When the part B runs out of parts during production in 4R, if the part replacement of the left supply unit 14L in standby is not completed, the production stops with both parts supply units in standby.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to eliminate equipment stoppage due to waiting for component replacement (replenishment) and to improve the operation rate of a mounting machine.

[0010]

In order to achieve the above object, according to the component mounting method of the present invention, a complementary mounting machine for a plurality of mounting machines is provided, and when a failure such as a component shortage occurs in the mounting machine, various mounting information is provided. Is communicated to the complementary mounting machine, and the complementary mounting machine performs mounting based on the communicated information.

According to the present invention, it is possible to continue production even if the replacement or replenishment of parts by the operator is delayed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, in an electronic component mounting step in which a plurality of mounting machines are connected, a complementary mounting machine for a plurality of mounting machines is provided, When a failure such as
A component mounting method characterized in that mounting position information is communicated, and a complementary mounting machine performs mounting based on the communicated information.
When mounting by the mounting machine is not possible, such as when the mounting machine is inoperable due to trouble, the production can be continued by the complementary mounting machine, even if the parts replacement by the operator is not performed at the predetermined timing. Has the advantageous effect that production can be continued.

According to a second aspect of the present invention, each mounting machine has only a supply unit having a minimum configuration, and the complementary mounting machine has a supply unit capable of mounting all components of the mounting machine. The mounting method according to claim 1, wherein in addition to the function of the invention according to claim 1, the mounting machine is provided with one supply unit, and the moving space of the supply unit of each mounting machine is small. In other words, the overall length of the production line can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. (Embodiment) The description of the external view of the electronic component mounting machine shown in FIG.

However, in the embodiment of the present invention,
Each mounting machine has only one supply unit in comparison with the conventional two supply units 14L and 14R, and is indicated as a supply unit 14. FIG. 1 is a flowchart of a component mounting method according to an embodiment of the present invention, and FIG. 2B is a conceptual diagram of a line configuration according to an embodiment of the present invention.

Referring to FIG. 2B, the line configuration of the embodiment of the present invention will be described. In the figure, a mounting machine 1, a mounting machine 2, and a mounting machine 3 are connected in series from the upstream of a mounting line, and each mounting machine includes one supply unit 14 and mounts components. On the other hand, the complementary mounting machine 4 is installed downstream of the mounting machines 1, 2, and 3, and the supply unit 14 of the complementary mounting machine 4 has a large number of cassettes 15 mounted thereon.
It is possible to mount all of the parts.

The mounting machines 1, 2, 3 and the complementary mounting machine 4
Are connected by a communication cable such as RS-232C, and various data can be transmitted and received between the mounting machines 1, 2, and 3 and the complementary mounting machine 4. In the case where a component shortage has occurred in each of the mounters 1, 2, and 3, the component whose component has run out is complementarily mounted by the complementary mounting machine 4. Therefore, there is only one supply unit for each of the mounting machines 1, 2, and 3, and there is no need to provide supply units on the left and right unlike the conventional example.

Next, a component mounting method according to an embodiment of the present invention will be described with reference to the flowchart of FIG. here,
Steps # 1 to # 4 and # 11 to # 14 are performed in the conventional example # 41.
Operations similar to # 44 are shown. In FIG. 1, the flowchart on the left side shows the mounting operation in the mounting machines 1 to 3,
The flowchart on the right shows the mounting operation of the complementary mounting machine 4.

In the mounting operation of the mounting machines 1 to 3,
Step # 4 is the same as the flow of the normal mounting operation shown in the conventional example. In the embodiment of the present invention, if it is determined in # 3 that the component has run out, the cassette (component) is stored as # 5 in # 5, and the mounting is skipped until the component is replaced (supplemented) thereafter. Next, in # 6, the component information and the mounting position information of the component stored as the component exhaustion are transmitted to the complementary mounting machine 4 as data, and the operation after # 1 is continued again.

Next, the mounting operation of the complementary mounting machine 4 will be described. If the complementary mounting machine 4 receives data such as the component information and the mounting position information of the cut-off component from the mounting machines 1 to 3 in # 10, the complementary mounting machine 4 determines the supply unit based on the component information in # 11. To the cassette, and pick up the parts at # 12.
The presence or absence of the component is determined in # 13. If the component is present, the component is mounted on the printed circuit board based on the mounting position information in # 14.
The operation after # 10 is repeated. If the data of component shortage has not been received from the mounting machines 1 to 3 in # 10, the complementary mounting machine 4 waits for data reception, does not perform the mounting operation, and only carries the printed circuit board from the upstream to the downstream of the line.

If it is determined in # 13 that the parts have run out, the process proceeds to # 1.
At 5, the equipment operation is stopped, a warning of parts exhaustion is displayed, and thereafter, replacement (replenishment) of parts by the operator is waited. As described above, when the complementary mounting machine 4 is provided, and the components run out in each of the mounting machines 1, 2, and 3, the component that has run out of components is replaced with the complementary mounting machine 4.
Is configured to continue implementation.

Although not shown in the figure, when a component is replaced (supplemented) in the mounting machine 1, 2, or 3 in which the component has run out, the complemented mounting machine 4 sends the released data to the complementary mounting machine 4. Then, the supplementary mounting machine 4 stops the complementary mounting. With such a configuration, for example, component A →
In the case where components are cut out in the order of the components B, first, when the component A is cut out in the mounting machine 1, the mounting of the component A is skipped in the mounting machine 1 and the component A is complementarily mounted by the complementary mounting machine 4. Next, when the component B has run out of components in the mounting machine 1, the mounting of the components A and B is skipped in the mounting machine 1, and the components A and B are complementarily mounted by the complementary mounting machine 4, and the components run out of a plurality of components. Does not occur due to waiting for parts replacement (replenishment).

As described above, according to the component mounting method of the present invention, even if a component runs out, it is possible to continue the production by the complementary mounting machine, and the component replacement by the operator is performed at a predetermined timing. If not, production will not stop. Further, it is also possible to mount only some of the components mounted on the mounting machines 1, 2, and 3 to the complementary mounting machine 4. For example, if only components with a large number of mountings per printed circuit board and high frequency of component depletion are mounted, production can be continued in the event of component depletion, and component mounting on the complementary mounting machine 4 It is also possible to reduce the number of steps, reduce the size of the supply section of the complementary mounting machine 4, and reduce the installation area.

In addition, when the cassettes of the mounting machines 1, 2, and 3 are defective, erroneous suction and recognition of components frequently occur, which increases the disposal loss of components and increases production tact due to retries. There are challenges, but in such cases,
As in the case of running out of components, the mounting of components is skipped, various data such as component information and mounting position information are transmitted to the complementary mounting machine 4, and the complementary mounting is performed by the complementary mounting machine 4, thereby continuing production efficiently. It is possible to

Further, even when the mounting machines 1, 2, and 3 are stopped due to a trouble and cannot perform any mounting operation, various data are transmitted to the complementary mounting machine 4 and the complementary mounting is performed by the complementary mounting machine 4. Therefore, production as a mounting line can be continued. Also, as shown in FIG.
The mounting machine in the conventional example is provided with supply units on the left and right, and it is necessary to configure the line length to be long due to the moving space of the left and right supply units. In the embodiment of the present invention, the mounting machine is configured to include only one supply unit. Since the moving space of the supply unit of each mounting machine is small, a complementary mounting machine is added, and the supply unit is mounted. even in the supply of all components possible mounting length, FIG. 2 (a), the (b), the line length L ₂ as a whole is shorter with respect to the line length L ₁ in the conventional example Can be configured.

[0026]

According to the component mounting method of the present invention, when the mounting by the mounting machine cannot be performed, for example, when the mounting machine cannot be operated due to a lack of components, a suction error due to a cassette defect of the mounting machine, or a trouble of the mounting machine, the complementary mounting. The production can be continued by the machine, and even if parts replacement by the operator is not performed at a predetermined timing, the production can be continued.

Each of the mounting machines is provided with one supply unit having a minimum configuration, the moving space of the supply unit of each mounting machine is reduced, the length of the production line can be shortened as a whole, and the entire production line can be configured. Has the effect of saving space.

[Brief description of the drawings]

FIG. 1 is a flowchart of a component mounting method according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram of a line configuration in a conventional example and one embodiment of the present invention.

FIG. 3 is an external view of an electronic component mounter according to a conventional example and an embodiment of the present invention.

FIG. 4 is a flowchart of a conventional component mounting method.

[Explanation of symbols]

 # 3 Component outage determination step # 5 Component outage storage step # 6 Various data transmission step # 10 Various data reception determination step # 13 Component outage determination step

Claims (2)

[Claims] In an electronic component mounting process in which a plurality of mounting machines are connected, a complementary mounting machine for a plurality of mounting machines is provided, and when a failure such as running out of a component of each mounting machine occurs, component information and mounting are performed on the complementary mounting machines. A component mounting method, wherein position information is communicated, and a complementary mounting machine performs mounting based on the communicated information. 2. The component mounting according to claim 1, wherein each mounting machine has only a supply unit having a minimum configuration, and the complementary mounting machine has a supply unit capable of mounting all components of each mounting machine. Method.