JP3821526B2 - Component mounting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component mounting apparatus that automatically performs a component mounting operation.
[0002]
[Prior art]
In recent years, with the advance of electronics, it is necessary to improve productivity in a component mounting apparatus for mounting components such as electronic components. For example, in order to prevent operation from being stopped during parts replacement when parts are out of stock, a plurality of parts supply units are provided to enable continuous production.
[0003]
Hereinafter, a conventional component mounting apparatus will be described with reference to FIGS. 4, 5, and 6.
FIG. 4 shows an external view of the component mounting apparatus. Reference numeral 1 denotes a mounting head, which has a plurality of nozzles 2 as mounting moving means for mounting components, and performs component mounting (suction / mounting) by intermittent rotation. Each nozzle 2 sucks the component from the component tape 3 and mounts it on the substrate. Reference numeral 4 denotes an XY table, which fixes a substrate on which a component is mounted and positions it below the nozzle 2. Reference numerals 5 (5L, 5R) denote component supply units, on which a plurality of parts cassettes 6 are mounted, and the desired parts cassette 6 is positioned below the nozzle 2. A parts tape 3 is set in the parts cassette 6. Reference numeral 7 denotes a controller as control means, which controls the entire component mounting apparatus.
[0004]
Next, a supplementary description of the component mounting apparatus will be given with reference to FIG. 5 which is a schematic configuration diagram of the component mounting apparatus.
Each component supply section 5 is equipped with a parts cassette 6 in which the same component tape 3 is set. In FIG. 5, A and B indicate the types of the component tapes 3, and the same components are mounted in the same arrangement in each component supply unit 5.
[0005]
Further, only the left component supply unit 5L can suck the component at the position indicated by the solid line in FIG. 5, and the component supply unit 5 capable of sucking the component in this way is called active. In the position indicated by the solid line in FIG. 5, only the component supply unit 5R on the right side can replace the component tape 3, and the component supply unit 5 in which the component tape 3 can be replaced in this way is called standby. That is, the component supply unit 5 can be alternately activated and in standby, and when the left component supply unit 5L moves to the position indicated by the phantom line in FIG. 5, the component supply unit 5 is on standby, and the right component supply unit When 5R moves to the position indicated by the phantom line in FIG.
[0006]
FIG. 6 is a flowchart showing a control operation by the controller 7 of the conventional component mounting apparatus, in which “component supply unit” is abbreviated as “supply unit”.
When production is started, first, the left part supply unit 5L is put on standby at # 1, and the right part supply unit 5R is activated at # 2. In step # 3, the board is transferred and the board to be mounted is fixed to the XY table 4. In step # 4, when the component is taken out from the component tape 3 of the component cassette 6 of the activated component supply unit 5 by the nozzle 2, the presence or absence of the component is checked. If there is a component, the component is mounted in # 5. .
[0007]
This is repeated until all the components of one board are mounted (# 6), and # 3 to # 6 are repeated until production is finished (# 7). If it is determined in # 4 that there is no part (parts are out), the active part supply unit 5 (here, the right part supply unit 5R) is moved to the standby position in # 8, and in # 9, If the standby component supply unit 5 (here, the left component supply unit 5L) is in an operable state, the standby component supply unit 5 is activated in # 10. The activated component supply unit 5 operates in the same manner from # 5.
[0008]
Here, the component supply unit 5 that has been on standby due to a component shortage replaces the component tape 3 by the operator (# 11). If the replacement of the component tape 3 is completed in # 12, the standby component supply unit 5 is in an operable state in # 13.
[0009]
[Problems to be solved by the invention]
However, in the component mounting method using the conventional component mounting apparatus described above, the operator cannot always complete the replacement of the component tape 3 in a timely manner, and the waiting component supply unit 5 becomes operable due to the component replacement waiting. Otherwise, production may stop. For example, in the case shown in FIG. 5, when the part A is out of production during production in the right part supply unit 5R, and then the part B is out of production during production in the left part supply unit 5L, standby is performed. If the replacement of the right part supply unit 5R is not completed, the production is interrupted while both the component supply units 5 are on standby.
[0010]
SUMMARY OF THE INVENTION The present invention solves the above-described problems, and it is an object of the present invention to provide a component mounting apparatus that can prevent production work from being interrupted by component replacement and can improve the operation rate of component mounting. is there.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, a component mounting apparatus according to the present invention includes a movable mounting moving unit that mounts a component, a component supply unit that supplies a component to the mounting moving unit, and a component supply unit. Auxiliary cassette that is provided and temporarily holds a plurality of parts and can be taken out again, an auxiliary part supply part that holds parts to be replenished in the auxiliary cassette of the part supply part, and an auxiliary part supply part. And a movable replenishment moving means for replenishing a component held in the component supply unit to an auxiliary cassette of the component supply unit.
[0012]
According to the present invention, it is possible to provide a component mounting apparatus that can prevent production work from being interrupted by component replacement and can improve the operation rate of component mounting.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, a movable mounting moving means for mounting a component, a component supplying section for supplying the component to the mounting moving means, a component supplying section, An auxiliary cassette that can hold and re-extract a plurality of components, an auxiliary component supply unit that holds components to be supplemented to the auxiliary cassette of the component supply unit, and an auxiliary component supply unit. It is equipped with a movable replenishment movement means that replenishes the held parts to the auxiliary cassette of the parts supply unit, and even if the replacement of parts by the operator is delayed, the parts are automatically replenished and production is continued. It becomes possible.
[0014]
According to a second aspect of the present invention, a plurality of component supply units are provided, the component supply units are movable along a predetermined direction, and the auxiliary component supply unit is movable along the component supply unit. The auxiliary component supply unit is moved to a position opposite to the standby component supply unit that is not supplying components to the component, and the component held in the auxiliary component supply unit with respect to the auxiliary cassette of the standby component supply unit is Control means for replenishment by the replenishment moving means is provided, and it becomes possible to start and wait for the parts supply section alternately to perform production, and the parts are automatically replenished to the waiting part supply section. Therefore, it is possible to prevent a decrease in productivity due to replenishment of parts.
[0015]
Hereinafter, embodiments of the present invention will be described with reference to FIGS. Components having the same functions as those of the conventional component mounting apparatus are denoted by the same reference numerals and description thereof is omitted.
As shown in FIG. 1, in this component mounting apparatus, a plurality of auxiliary cassettes 10 are mounted on each component supply unit 5. In addition, an auxiliary component supply unit 11 that is movable in parallel to each component supply unit 5 is provided. The auxiliary component supply unit 11 is equipped with a plurality of parts cassettes 6, and a component tape 3 is set in each parts cassette 6. In addition, an XY robot 12 is mounted on the auxiliary component supply unit 11, and a component is sucked from an arbitrary parts cassette 6 of the auxiliary component supply unit 11 by a supply nozzle 13 as a supply movement unit provided in the XY robot 12. In addition, components can be supplied to an optional auxiliary cassette 10 of the component supply unit 5. The same component tape 3 (components A, B,...) Is mounted on each component supply unit 5 (the left component supply unit 5L, the right component supply unit 5R, and the auxiliary component supply unit 11). The entire component mounting apparatus is controlled by a controller (not shown) as control means.
[0016]
FIG. 2 is a side view showing the component supply unit 5 and the auxiliary component supply unit 11.
As shown in FIG. 2, the auxiliary cassette 10 mounted on the component supply unit 5 has a circulating and loop-shaped component holding unit 10c spanned between the loops 10a and 10b, and this component holding unit 10c. In addition, the component 15 can be temporarily held. That is, since the auxiliary cassette 10 is a circulation type, it is possible to hold a plurality of parts 15 in a lump and sequentially pick up and take out the parts 15 in the same manner as the normal part tape 3.
[0017]
In the auxiliary component supply unit 11, a normal component tape 3 is mounted on a normal parts cassette 6. The XY robot 12 moves the supply nozzle 13 in the left and right and front and rear directions (back / front and left / right with respect to the paper surface of FIG. 2) to take out the part 15 from the parts cassette 6 of the auxiliary part supply unit 11. The component holding part 10c of the auxiliary cassette 10 can be replenished with the component 15.
[0018]
The control operation by the controller of this component mounting apparatus will be described with reference to the flowchart of FIG. In addition, the same operation | movement as the control operation of the conventional component mounting apparatus is attached | subjected, and the description is abbreviate | omitted in part.
[0019]
In step # 1, the left part supply unit 5L is put on standby, and in step # 2, the right part supply unit 5R is activated. Then, in step # 21, it is determined whether or not a component shortage is stored. If no parts are stored, the process proceeds from # 3 to # 4 to determine whether there is a part 15, and if there is no part 15, the part that has been started up in # 20 is out of parts. The supply unit 5 is stored as out of parts.
[0020]
Also, in step # 21, if there is a component out of storage in the activated component supply unit 5, the following processing is performed.
In # 8 ′, the activated component supply unit 5 is moved to the standby position. In # 9 ′, if the standby component supply unit 5 is in an operable state, the standby component supply unit 5 in # 10 ′. Start up. The activated component supply unit 5 operates in the same way from # 4. In parallel with this, the substrate is transported in # 3 ′.
[0021]
Further, the component 15 is replenished to the component supply unit 5 that has been waiting in # 8 ′. That is, the auxiliary component supply unit 11 is moved to the position of the standby component supply unit 5 in # 22, and the component 15 is replenished in # 23.
[0022]
The detailed operation at this time is that the replenishment nozzle 13 is moved by the XY robot 12, the component 15 is sucked and taken out from the component tape 3 of the component cassette 6 of the auxiliary component supply unit 11, and the replenishment nozzle 13 is further moved to stand by. The component 15 is supplied to the auxiliary component supply unit 10 of the component supply unit 5. In this case, the parts 15 that have run out of parts are replenished in batches as many as are used in the production of one board. In step # 24, it is determined whether the replenishment of the part 15 is completed. As described above, at # 13 ′, the operation becomes possible. When the auxiliary cassette 10 is replenished with parts 15 and started, when the parts are mounted, the auxiliary cassette 10 positions the auxiliary cassette 10 instead of the parts cassette 15 which has run out of parts and sucks the parts 15. Further, when a plurality of parts 15 are out of parts, the parts 15 are replenished using a plurality of auxiliary cassettes 10.
[0023]
Further supplementary explanation will be given with a specific flow of operation. It is assumed that the part A is out of parts in the right part supply part 5R, and then the left part supply part 5L is out of parts in part B.
[0024]
When the right part supply unit 5R is activated to perform component mounting, the left part supply unit 5L is on standby. At this time, the auxiliary component supply unit 11 is moved to the position of the left-side component supply unit 5L that has been put on standby to replenish the component 15 (for example, the component B). When the mounting of one board is completed by the right part supply part 5R, the right part supply part 5R is made to stand by and the left part supply part 5L in which the replenishment of the part 15 is completed is activated, and the suction of the part 15 is left. This is performed from the auxiliary cassette 10 of the part supply unit 5L. When component mounting is performed by the left component supply unit 5L, the auxiliary component supply unit 11 is moved to the standby position of the right component supply unit 5R to replenish the component 15 (for example, component A). . When the mounting of one board is completed by the left part supply part 5L, the left part supply part 5L is made to stand by, the right part supply part 5R having been replenished with the part 15 is started, and the right part This is performed from the auxiliary cassette 10 of the component supply unit 5R. This is repeated, but the replenishment operation of the component 15 is completed while the mounting by the other component supply unit 5 is performed, so that the production tact loss due to the replenishment of the component 15 is zero.
[0025]
Production can be continued as described above. During this time, production does not stop even if parts are not replaced by workers in a timely manner.
In addition, basically, the component 12 may be replenished to the component supply unit 5 in which the component has been cut off by the operator depending on the situation while replenishing the component 15 from the auxiliary component supply unit 11, Alternatively, the parts cassette 15 may be arranged with respect to the parts supply unit 5 to be replenished by the operator, and the parts tape 3 that has run out of parts may be replaced.
[0026]
【The invention's effect】
As described above, according to the present invention, it is possible to continue production even when a part replacement operation by an operator is delayed. In addition, the replenishment of parts during production can be automated and unmanned, and continuous production and work man-hours can be reduced, resulting in an improvement in productivity.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an electronic component mounting machine according to an embodiment of the present invention.
FIG. 2 is a schematic configuration diagram of a component supply unit / auxiliary component supply unit according to an embodiment of the present invention.
FIG. 3 is a flowchart of a component mounting method according to an embodiment of the present invention.
FIG. 4 is a perspective view showing an appearance of an electronic component mounting machine in a conventional example.
FIG. 5 is a schematic configuration diagram of an electronic component mounting machine in a conventional example.
FIG. 6 is a flowchart of a component mounting method in a conventional example.
[Explanation of symbols]
1 head 2 nozzle (mounting movement means)
5, 5L, 5R Parts supply unit 6 Parts cassette 10 Auxiliary cassette 11 Auxiliary parts supply unit 12 XY robot 13 Supply nozzle (replenishment moving means)
15 parts

Claims (2)

A movable mounting movement means for mounting components, a component supply section for supplying parts to the mounting movement means, and a component supply section for temporarily holding and re-extracting a plurality of components Auxiliary cassette, an auxiliary component supply unit for holding components to be replenished in the auxiliary cassette of the component supply unit, and an auxiliary component supply unit provided with an auxiliary component supply unit for holding the component held in the auxiliary component supply unit as an auxiliary cassette of the component supply unit A component mounting apparatus comprising a movable replenishment moving means for replenishment. A plurality of component supply units are provided, and these component supply units are movable along a predetermined direction, the auxiliary component supply unit is movable along the component supply unit, and the component supply unit is not supplied with standby. A control means for moving the auxiliary component supply section to a position opposite to the component supply section in the medium and replenishing the components held in the auxiliary component supply section with respect to the auxiliary cassette of the standby component supply section by the replenishment moving means. Provided component mounting device.

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