JPH11289189A - Component mounting method and device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a component mounting method and device capable of shortening a component outage stop time, efficiently performing replacement work, and improving productivity. SOLUTION: A plurality of component supply units movable between a component supply position and a component replacement position, means for moving the component supply unit to the component replacement position when components are exhausted, In the component mounting apparatus provided with means for controlling a component, when a component shortage occurs, all the remaining components to be supplied from the component supply unit that has run out of components are skipped, a component shortage notification is performed, and the component supply unit that has run out of the component is sent to the component mounting unit. Move parts to the replacement position and supply parts from other parts supply parts. After replenishing parts at the parts replacement position, move the parts supply part to the parts supply position, skip parts due to lack of parts and parts that have not been mounted Recovery mounting.

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 and apparatus for mounting various types of components on a board.

[0002]

2. Description of the Related Art In recent years, an electronic component mounting apparatus has been required to efficiently mount various types of electronic components on a circuit board. Among them, a major problem is that productivity is reduced due to operations such as stopping equipment due to running out of parts, replenishing the parts, and setting completion of replacement.

[0003] In particular, unlike a mounting device called a high-speed mounting machine, which has abundant component supply devices of about 100 units,
In a multi-functional mounting device that is intended to mount odd-shaped components or large-sized components using a cassette component supply unit or a tray component supply unit, the number of mounted mechanical component supply devices is limited to, for example, about 20 units. Particularly, productivity reduction due to running out of parts is an important issue.

Hereinafter, a component mounting apparatus (hereinafter, referred to as a multifunctional mounting machine) for mounting various types of components will be described with reference to FIGS.

[0005] In FIG. 1 showing the configuration of a multi-function mounting machine,
Reference numeral 1 denotes a transport unit for loading and unloading the circuit board 11, reference numeral 2 denotes a cassette component supply unit, and reference numeral 3 denotes a tray component supply unit. 4 is XY
The robot positions the head unit 5 and the board recognition camera 7 at arbitrary positions. The head unit 5 sucks the electronic component P from the cassette component supply unit 2 or the tray component supply unit 3 by the suction nozzle 6 and mounts the electronic component P on the substrate 11. At this time, the head unit 5 is positioned at the mounting position of the circuit board according to the measurement result of the position of the circuit board 11 by the board recognition camera 7.
Reference numeral 8 denotes a component recognition camera which captures and measures the suction posture of the electronic component by the suction nozzle 6, 9 denotes a nozzle station having the suction nozzle 6 and the jig nozzle, and 10 denotes a component supply position (in the direction of arrow A in the cassette component supply unit 2). This is a component replacement position moving means for moving between the component replacement position (B) and the component replacement position (C).

In FIG. 2 showing the tray component supply section 3,
A lifter unit 13 moves up and down a tray magazine 14 holding trays 15 on which electronic components are arranged in a stacked state, and constitutes a component replacement position moving unit for tray components. Further, the predetermined tray 15 positioned at the supply position by the lifter unit 13 is pulled out from the tray magazine 14 back and forth in the direction of arrow D.

As described above, the multi-function mounting machine supplies various types of components from appropriate component supply units such as taping components, tray storage components or stick storage components (not shown), and mounts the components on the substrate 11. It is configured as follows.

[0008] As a specific example, the taping component is 1.0 ×
We can supply from 0.5mm square micro chip parts to 44mm square large irregular parts, including capacitors, transistor parts, CSP (Chip Scale Package) parts and the like. The tray storage parts are 25m high.
m, large parts up to about 150mm in width can be supplied.
Large QFP and SOP parts, BGA (Bell Grid Alley
) Parts, odd-shaped parts, expensive custom ICs, etc. are included.

Next, a description will be given of the operation of the cassette component supply unit 2 of the multi-function mounting machine when components run out.

First, there are four types of modes (connection mode, exchange mode, priority exchange mode, preparation mode) as a component supply system of the multi-function mounting machine, and the features of each operation will be described.

As shown in FIG. 4, a supply block L and a supply block R are provided as two cassette component supply units 2. Here, the first supply block L mounts 20 cassette parts Z1 to Z20, and the second supply block R mounts 20 cassette parts Z21 to Z40, for a total of 40 cassette parts. It is assumed that the cassette component is mounted.

The connection mode uses two supply blocks L and R from Z1 to Z40, and is capable of supplying various kinds of components. In particular, a supply method effective in the case of multi-product small-quantity production. It is.

The operation flow in this case will be described with reference to FIG. If one cassette component, for example, Z1, runs out of components, the component is notified and the supply block L moves to the component replacement position and the mounting machine stops. Then, when the components are replenished at the component replacement position and the switch is pressed after the replenishment is completed, the supply block L moves to the component supply position and the supply of the part-removed components is started, and the mounting is resumed.

The exchange mode consists of two supply blocks L and R
This is a supply system in which the same parts are mounted in advance, and when one supply block runs out of parts, the other supply block automatically continues production. For example, Z1 to Z20 and Z21 to Z40 are supplied by the same taping component, and Z1 and Z21 supply the same taping component. When Z1 is out of components, Z1 is produced and Z21 is produced.
1 can be replenished in the meantime, and if parts are replenished during this time, Z1 to Z20 and Z21 to Z4
The supply unit of 0 can be alternately produced each time a part is exhausted, and the stop of the mounting machine can be eliminated. In this case, the types of components that can be supplied are reduced.

The priority replacement mode is a supply system in which components are set in the same manner as the above-described replacement mode, but a supply block to be used with priority is specified. For example, Z1 to Z20
If Z1 is out of order and Z1 runs out of parts and production shifts to Z21, then Z21 is produced, but after Z1 parts run-out replenishment is completed, supply is transferred from Z21 to Z1 again upon completion of replenishment.

In the preparation mode, production is performed using only one supply block, for example, Z1 to Z20, and the other supply block, Z21 to Z40, is used to prepare a taping component for performing the next production during this production. This mode is effective when there are many replacements.

Although the case of taping components has been described above, two tray component supply units 3 for supplying tray storage components are provided, and a similar four-mode component supply unit can be selected.

[0018]

In the above-described configuration, the three modes of the preparation mode, the replacement mode, and the priority replacement mode are advantageous at the time of component exhaustion or setup change. However, there is a problem that only the component types of the supply block can be supplied and mounted.

On the other hand, the connection mode is advantageous for supplying various types of parts, but has a problem that the apparatus stops when parts are exhausted, resulting in a production loss.

In view of the above-mentioned conventional problems, the present invention provides a component mounting method and a component mounting method capable of supplying various types of components during the production as in the connection mode, and further capable of continuing the component mounting without stopping the apparatus when the components run out. It is intended to provide a device.

[0021]

According to the present invention, there is provided a component mounting method comprising a plurality of components which are movable between a component supply position and a component replacement position and in which a plurality of different types of components are arranged. A first step of supplying a component and mounting it on a substrate, and when any component supply section runs out during the first step, the component supply section is moved to a component replacement position to replenish components. The second step is a third step of skipping component mounting by component supply from a component supply unit where a component shortage has occurred, supplying components from another component supply unit, and mounting the components on a board.
A process and after the completion of component replenishment at the component replacement position, the component supply unit is moved to the component supply position and the process returns to the first process.
And a process.

In the fourth step, a method of performing recovery mounting by supplying a component from the component supply section skipped after the component supply from the component supply section supplying the component in the third step is completed, or in the third step, A method of prioritizing the mounting of components supplied from a previously specified component supply unit among the component supply units that are supplying components and the component supply units that have returned to the component supply position, or component supply in the third step There is a method of arbitrarily selecting between mounting by component supply from the component supply unit and recovery mounting by component supply from the component supply unit that has returned to the component supply position.

Also, the component mounting apparatus of the present invention includes a plurality of component supply units movable between a component supply position and a component replacement position, a head unit having a suction nozzle for sucking components,
A component mounting apparatus comprising: means for positioning a head at an arbitrary position; means for moving a component supply unit to a component replacement position when a component runs out; and control means for detecting a component run and performing control when the component runs out. In the event that a component shortage occurs, all the remaining components to be supplied from the component supply unit that has run out of components are skipped, a component shortage notification is performed, the component supply unit that has run out of components is moved to the component replacement position, and another component supply unit is used. After the parts are supplied at the part replacement position, the parts supply part is moved to the parts supply position after the parts are replenished, and the parts that have been skipped due to the lack of parts and have not been mounted are subjected to recovery mounting.

[0024] Thus, during the production, various kinds of parts can be supplied by arranging different types of parts in a plurality of parts supply units, and even when parts run out, continuous production can be performed without stopping the equipment and there is no production loss. The parts can be replaced by moving the parts supply unit to the parts replacement position, so the parts can be replaced easily and efficiently during production. By installing the recovery after the replacement, it is possible to smoothly return to the normal production, and stop the apparatus due to the lack of parts as much as possible, thereby improving the productivity.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a component mounting apparatus according to the present invention will be described below with reference to FIGS. Since the mechanical configuration of the component mounting apparatus according to the present embodiment is exactly the same as the conventional example described with reference to FIGS. 1 to 4, the detailed description is omitted here with the help of the description.

FIG. 1 is a perspective view showing the overall configuration of the multi-function mounting machine of the present embodiment, FIG. 2 is a perspective view of a tray component supply unit 3,
FIG. 3 shows a part of the tray component supply unit and the substrate
FIG. 2 is a perspective view showing a state in which a component P is mounted on the upper part 1;

When the electronic component P is mounted, as shown in FIGS. 1 to 3, the circuit board 11 is carried into the mounting position by the transport unit 1 and is positioned and fixed. Next, the XY robot 4 moves the head unit 5 onto the circuit board 11, and the board recognition camera 7
Recognizes the substrate 11 and measures the position to be mounted. Next, the XY robot 4 moves the head unit 5 to the component supply unit 2 or 3
The electronic component P is moved upward and is sucked by the suction nozzle 6.
Next, when the electronic component P sucked by the movement of the head unit 5 is positioned on the component recognition camera 8, the head unit 5 lowers the suction nozzle 6 to move the electronic component P sucked to the focus surface of the component recognition camera 8. Position. The electronic component P is imaged by the component recognition camera 8, the position of which is corrected based on this information, and the electronic component P is mounted on the substrate 11.

Next, a procedure for mounting components supplied from the cassette component supply unit 2 in the multifunction mounting machine will be described.
This will be mainly described with reference to FIGS.

The parts supplied are, as shown in FIG.
Necessary components are arranged in Z1 to Z40 of the supply block L and the supply block R, which are two cassette component supply units 2. Then, for example, it is assumed that mounting is started in order from Z1. First, a component is sucked, and then the number of remaining components is checked. If there is a remaining number, it is mounted on the board 11 after performing component recognition without any problem. By repeating the above operation, the components are sequentially mounted on the board. During this time, for example, Z
If the component has run out in step 10, skip the component mounting from Z11 to Z20, skip the component, notify the component running out, and move the component block L to the component replacement position by the component replacement position moving means 10. At the same time, the supply block for supplying components is moved to another component block R, and component supply of components Z21 to Z40 of the component block R is started.
During this time, after the parts are replenished to the parts block L as needed, the supply completion switch is pressed. Then, the supply block L returns to the component supply by the component replacement position moving means 10. Then, after the supply of the components of the supply block R is completed, the components from the components Z11 to Z20 of the supply block L skipped due to the component shortage are supplied, and the recovery production is performed. At this time, if a new component runs out, the above operation is repeated. The release of the recovery operation can be released by key input.

In the above description, after the supply block L is restored, the component supply from the supply block R, which has been supplying components while the components are being supplied to the supply block L, ends.
Although the example in which the recovery mounting is performed by supplying the components from the supply block L has been described, after the supply block L is restored, the components supplied from the supply block L or the supply block L of the supply block L which has been designated in advance by priority. Mounting may be performed with priority, and recovery mounting by supplying components from the supply block L and mounting by supplying components from the supply block R may be arbitrarily selected based on an appropriate algorithm for optimizing the mounting efficiency. You may do it.

In the above description, only the procedure for mounting components supplied from the cassette component supply unit 2 has been described. However, the same applies to the case where components are supplied from the tray component supply unit 3; The same applies to the case of mounting.

[0032]

According to the component mounting method and apparatus of the present invention, as is apparent from the above description, it is possible to mount various types of components by arranging different components in a plurality of component supply units during production. In addition, when a component shortage occurs, all of the remaining components to be supplied from the component supply unit that has been cut out are skipped, a component exhaustion notification is performed, the component supply unit that has lost the component is moved to the component replacement position, and another component supply unit is sent to another component supply unit. Transfer component supply and continue component mounting.After replenishing components at the component replacement position, move the component supply unit to the production position, and perform recovery mounting of components that were skipped due to component exhaustion and were not mounted. As a result, parts can be replaced while production is continued, and the effect of improving productivity by minimizing stoppage of the apparatus due to running out of parts can be obtained.

[Brief description of the drawings]

FIG. 1 is an overall schematic perspective view of a component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view of a tray component supply unit in the embodiment.

FIG. 3 is a detailed perspective view of a tray component supply unit and a head unit in the embodiment.

FIG. 4 is an explanatory diagram of a component arrangement state of a plurality of component supply units in the embodiment.

FIG. 5 is a flowchart of a mounting operation in the embodiment.

FIG. 6 is a flowchart of a mounting operation in a conventional example.

[Explanation of symbols]

 2 Cassette component supply unit 3 Tray component supply unit 4 XY robot 5 Head unit 6 Suction nozzle 10 Component replacement position moving means 13 Lifter unit (component replacement position moving means)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshihiko Oda 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A first component, which supplies a desired component from a plurality of component supply units which are movable between a component supply position and a component replacement position and in which a plurality of different types of components are arranged, and are mounted on a substrate. A second step of moving a component supply unit to a component replacement position and replenishing a component when a component shortage occurs in any of the component supply units during the first process; A third step of skipping component mounting by a component supply from a unit and supplying components from another component supply unit and mounting the components on a board, and moving the component supply unit to the component supply position after completion of component replenishment at the component replacement position A fourth step of moving and returning to the first step. 2. In the fourth step, after the component supply from the component supply unit that supplies components in the third step ends, recovery mounting is performed by component supply from the skipped component supply unit. The component mounting method according to claim 1. 3. In the fourth step, mounting of a component supplied from a previously specified component supply unit of the component supply unit that supplies components in the third step and the component supply unit that has returned to the component supply position. 2. The component mounting method according to claim 1, wherein priority is given to performing the mounting. In the fourth step, mounting by component supply from the component supply unit that supplies components in the third step and recovery mounting by component supply from the component supply unit that has returned to the component supply position are optional. 2. The component mounting method according to claim 1, wherein the selecting is performed. 5. A plurality of component supply units movable between a component supply position and a component replacement position, a head unit having a suction nozzle for sucking components, and means for positioning the head unit at an arbitrary position. In a component mounting apparatus provided with means for moving a component supply unit to a component replacement position when a component runs out, and control means for detecting a component run-out and performing control when the component runs out, when a component run-out occurs, All the remaining parts to be supplied by the supply unit are skipped, a component shortage notification is performed, the component supply unit that has run out of components is moved to the component replacement position, and a component is supplied from another component supply unit, and the component is supplied at the component replacement position. A component mounting apparatus characterized in that the component supply unit is moved to a component supply position after replenishment, and the component mounting unit skips due to component exhaustion and performs recovery mounting of components that have not been mounted.