JP3114427B2 - Electronic component supply device and electronic component supply method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supply apparatus and an electronic component supply method capable of stocking many trays in a small arrangement space.

[0002]

2. Description of the Related Art As a device for supplying electronic components to an electronic component mounting device such as a chip mounter, a base material for holding trays is stored in multiple stages on storage shelves, and a desired tray is supplied from the storage shelf to a supply area. The electronic component in the tray is picked up by a suction head and transferred to a transfer head of an electronic component mounting apparatus.

FIG. 18 is a perspective view showing a state in which a tray is held in a conventional electronic component supply device. In FIG. 18, reference numeral 1 denotes a plate-like base material, and trays 2a, 2b, 2 for storing electronic components of the same type on the base material 1.
c and 2d are placed and held.

[0004]

However, in the conventional electronic component supply apparatus, the trays 2a to 2d are placed one by one on the base material 1 in a planar manner. For this reason, the number of trays that can be placed is limited by the area of the upper surface of the base material 1, and as a result, there is a problem that the stock amount of electronic components is limited. On the other hand, when the area of the base material is increased to increase the stock amount, the size of the electronic component supply device that stores the base material increases,
There is a problem that a large arrangement space is required.

In order to increase the stock of electronic parts, it is conceivable to hold trays for storing electronic parts of the same type in a plurality of base materials and store them in storage shelves. Since the number of base materials is limited, the types of electronic components that can be handled are reduced, and there is a problem that it is difficult to supply many types of electronic components.

Accordingly, the present invention provides an electronic component supply apparatus and an electronic component supply method capable of stocking many types of electronic components even in a small arrangement space and increasing the stock amount per type. The purpose is to do.

[0007]

According to the present invention, there is provided an electronic component supply apparatus comprising: a base member on which trays are stacked and placed;
A storage body for storing metal
The base material pulled out from the storage body by the pulling means
An electronic component supply device having a table for supporting
Then, the base material is placed on a stack of trays.
Extraction area for extracting electronic components mounted on the board from the tray
And the collection area where the unnecessary trays are placed.
Electronic parts were sold out in the extraction area
Tray removal means for collecting empty unnecessary trays in the collection area
Is provided .

[0008]

According to the above construction, since the trays are stacked on the base material and placed, the stock amount can be increased even with a smaller base material. Also, an extraction area and a collection area are provided on the base material, trays containing electronic components are stacked in the extraction area, unnecessary trays are stacked in the collection area, and unnecessary tray extraction areas are provided by tray removal means. From the collection area.
It is not necessary to provide a facility for storing unnecessary trays, and the installation space can be further reduced.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a state in which an electronic component supply device TF according to one embodiment of the present invention is set in an electronic component mounting device CM. CV of the electronic component mounting device CM
Is a conveyor provided in the horizontal plane in the X direction for transporting and positioning the substrate A, and H is a transfer head for mounting electronic components at predetermined positions on the substrate A. The electronic component mounting apparatus CM is provided with a tape feeder F in addition to the electronic component supply apparatus TF of the present embodiment, as a means for supplying an electronic component to the transfer head H.

Next, the configuration of the electronic component supply device TF of the present embodiment will be described with reference to FIG.

Reference numeral B denotes a vertically long main body box, and storage shelves CA and CB as storage bodies are arranged in two upper and lower stages at the back of the internal space of the main body box B. The base material 4 can be stored in each of the horizontal stages of the storage shelves CA and CB. On one base member 4, a plurality of trays for storing the same type of electronic components in a matrix are placed in a stacked state. FIG.
As shown in FIG. 2, the door B
1 and B2 are hinged so that they can be opened and closed freely.
When the base 2 is opened, the base members 4 of each stage of the storage shelves CA and CB can be put in and out.

Next, the base member 4 and the like will be described with reference to FIGS. FIG. 3 is a perspective view of the base member 4 and the tray 5 of the electronic component supply device according to the embodiment of the present invention. FIG. 4A is a plan view of the base material of the electronic component supply device according to the embodiment of the present invention. 4 (b) is the base material 4
FIG. 6 is a front view showing a state where a plurality of trays 5 are placed in a stacked state. 3, among the side edges of the base material 4, a side edge 4a on the left side in FIG. 3 and a side edge 4b opposed to the side edge 4a are greatly bent downward, and the strength of the base material 4 is increased. . Thereby, even if a plurality of trays 5 are placed, they are hardly bent. These side edges 4a and 4b are slidably guided by guide rails of a table described later. FIG.
The front right side edge 4c is bent slightly so as to be able to engage with an engagement claw of a table described later.

An extraction area S1 on which a plurality of trays 5 for storing electronic components are placed in a stacked state on the base member 4,
A collection area S2 on which the unnecessary trays 5 are placed in a stacked state is provided. In the vicinity of the take-out area S1, the base member 4 includes positioning pins 6, 7, 9, 10, 11 that penetrate the base member 4 upward and stand. , 10, 11
By contacting the side of the tray 5, the tray 5 is positioned at a predetermined position on the base member 4. Of these, the positioning pins 6 and 7 are fixed to the base material 4,
The positioning pins 8, 9, 10, 11 are slidably passed through slits 4e, 4f, 4g, 4h formed in the base member 4, respectively.
11, the lower end of which is fixed to the magnet plate 12, 1
The positions of the slits 4e, 4f, 4g and 4h are maintained by bonding the bases 4 and 3 to the base member 4 by magnetic force. When the size of the tray 5 changes, the positions of the positioning pins 8, 9, 10, 11 are changed for convenience, and the tray 5 is positioned at a predetermined position on the base material 4. In this example, the magnet plate 12,
Positioning pins 8, 9, 10, 1 by the magnetic force of 13, 14
Although the position 1 is determined, various changes may be made, for example, by determining these positions with screws or the like. The collection area S2 has the same configuration as the removal area S1, and the positioning pins 96, 97, 99, 100, 1
01 corresponds to the positioning pins 6, 7, 9, 10, 11. In addition, the slits 4i to 4l correspond to the slits 4e to 4e.
4h, the magnet plates 102 to 104 correspond to the magnet plates 12 to 14, respectively.

In FIG. 2, reference numeral 16 denotes an electronic component supply device T.
A moving body that moves in the X and Y directions in a component supply area of F (an area having an intermediate height between the storage shelves CA and CB), and electronic components are sandwiched between the moving body 16 and the conveyor CV side. A component take-out head 17 is provided as a component take-out means having a chuck 17a and a nozzle 17b for adsorbing electronic components at a lower portion, and an unnecessary tray 5 (in the present specification, an unnecessary tray) is provided on the storage shelves CA, CB side. In addition to the tray that has been emptied after the supply of the electronic components, the tray also includes a tray that has been identified as a defective electronic component by the camera stage 23 described later and that has returned the defective electronic component. A tray transfer head 18 is provided as tray removal means for transferring the sheet to the collection area S2. That is, the tray transfer head 18 and the component removal head 17 are
6 and integrally moves the component supply area in the XY directions. Reference numeral 19 denotes an X-axis arm that holds the moving body 16 so as to be movable in the X direction.
An X motor 21 for moving the moving body 16 in the X direction by driving a feed screw (not shown) built in
Numeral 22 denotes a Y-axis arm which holds the X-axis arm 19 so as to be movable in the Y-direction.
Is moved in the Y direction. Therefore, X
When the motor 20 and the Y motor 22 are driven, the component take-out head 17 and the tray transfer head 18 can be moved in the XY directions in the component supply area. In this embodiment, the tray transfer head 18 is provided separately from the chuck 17a, but the chuck 17a may be used as a tray removing unit.

A reference numeral 23 denotes a chuck which is disposed near the conveyor CV,
A camera stage 24 with a built-in camera for observing the position and posture of the electronic components taken out of the tray 5 by 7b or the like, and 24 is used for mounting the electronic components taken out of the tray 5 and correcting misalignment and the like. Is a component positioning unit. The camera stage 23 and the component positioning unit 24 are properly used depending on the type of electronic component. For example, a component having fine leads such as a QFP is transferred to the camera stage 23, and a deformed component or the like is transferred to the component positioning unit 24. The components are transferred by the component take-out head 17. The electronic components observed by the camera stage 23 and the electronic components whose positions have been corrected by the component positioning unit 24 are attracted to the transfer head H (see FIG. 1) of the electronic component mounting apparatus CM, and It is mounted at a predetermined position. 25 is the component positioning unit 2
Reference numeral 4 denotes a height adjusting motor, and reference numeral 26 denotes a nozzle holder for holding a replacement nozzle 27.

Next, the delivery means for transferring the base material 4 from the storage shelves CA and CB to the elevating means and the elevating means for bringing the base material 4 to the component supply area will be described. In FIG. 2, reference numeral 30 denotes a frame vertically provided in the internal space of the main body box B, reference numerals 31 and 32 denote vertical feed screws rotatably supported by the frame 30, and reference numerals 35 and 36 denote these feed screws 31. , 32 for independently driving the table. Reference numerals 33 and 34 denote guide rods vertically supported by the frame 30. The upper and lower two tables T1 and T2 are guided by the guide rods 33 and 34 so as to be movable up and down. Table T1,
T2 is in front of storage shelves CA and CB, and tray 5 is
A supporting table for supporting the laminated base material 4
You.

FIG. 5 is a perspective view showing the table T1 with the base member 4 removed. Since the table T2 has the same configuration as the table T1, only the table T1 will be described. Reference numeral 40 denotes a table frame of the table T1. The table frame 40 has a horizontal and substantially U-shape, and a cutout 40a is provided on one side of the table T1 to allow engagement claws 45 and 46 to be described later. . Reference numerals 37, 38 denote sliders provided on the back of the table frame 40, and these sliders 37, 38 are slidably engaged with guide rods 33, 34. Reference numeral 39 denotes a nut provided on the back of the table frame 40, and the nut 39 is screwed to the feed screw 31. Therefore, when the motor 35 is driven to rotate the feed screw 31, the table T1 can be moved up and down in the Z direction. When the table T2 is moved up and down, the motor 36 is driven to rotate the feed screw 32. Reference numeral 41 denotes a pair of guide shafts which are mounted on the table frame 40 and face the Y direction in the horizontal plane. Sliders 43 and 44 provided below the reciprocating plate 42 slide on these guide shafts 41. It is freely inserted. 4
Reference numerals 5 and 46 denote engagement claws fixed on the upper surface of the reciprocating plate 42 with a space therebetween. The tips of the engagement claws 45 and 46 are bent upward in a key shape. Is formed so as to be engageable with the side edge 4c (see FIG. 3). Reference numeral 47 denotes a shaft support provided near the center of the table frame 40. The shaft support 47 supports one end of a swing arm 48 so as to be swingable in a horizontal plane. A bearing 48b is attached to the upper surface of the other end of the swing arm 48, and the bearing 48b is slidably engaged with a long hole 42a formed in the reciprocating plate 42. In the middle of the swing arm 48, a long hole 48a
A bearing 49a attached to the upper surface of a peripheral portion of a rotating plate 49 that rotates in a horizontal plane is slidably engaged with the long hole 48a. Reference numeral 50 denotes a motor for rotating the rotary plate 49 via the gear box 51. The gear box 51, the motor 50, and the like are supported by a long plate 53 extending below the table frame 40. Reference numerals 52 and 53 are guide rails which slidably engage the side edges 4a and 4b of the base member 4 on the upper surface of the table frame 40 to guide the movement of the base member 4.

Therefore, as shown in FIG.
0 is driven to rotate the rotating plate 49, and the reciprocating plate 42
6 is moved to the left from the solid line position in FIG. 6 so that the engaging claws 45 and 46 are projected through the notches 40a and engaged with the side edges 4c of the base material 4 in the storage shelf CA as shown by the dashed line in FIG. Can be done. Then, by rotating the rotating plate 49 in the opposite direction to the above and pulling it to the position indicated by the two-dot chain line in FIG. 6, the base material 4 is pulled out onto the table T1 while guiding the base material 4 by the guide rails 52 and 53. Can be. Then, the motor 35 as a lifting / lowering means is driven,
By moving the table T1 up and down, the moving body 16
(See FIG. 2) to the parts supply area that moves in the X and Y directions.
The base member 4 and the tray 5 placed on the base member 4 can be moved.

In FIG. 2, reference numerals 57 and 58 denote tray sensors as tray height detectors. These tray sensors 57 and 58 are disposed in the component supply area, and position the upper surface of the tray 5 in the height direction. It is detected whether or not the tray 5 is at a height at which the component take-out head 17 can pick up electronic components from the tray 5.

FIG. 7 is a block diagram showing the control means 70 of the electronic component supply device of the present embodiment. 71 is the ROM 7
2 that controls other elements by the control program in
U and 73 are RAMs for storing component stock information for each storage stage of the storage shelves CA and CB shown in FIG. 8 and component supply information for each board type shown in FIG.
5, drawer mechanism 76, pick and place mechanism 7
7, an interface for connecting to the CPU 71;
The interface 74 includes an electronic component mounting apparatus CM.
Is also connected. Here, as shown in FIG. 9, the component supply information of the RAM 73 is provided for each of a plurality of board types, and can correspond to a plurality of types. When the CPU 71 receives a command from the control unit 80 of the electronic component mounting apparatus that a certain type of component should be taken out, the CPU 71 checks this type, and stores the storage shelves CA,
Among the storage stages of the CB, the storage stage for storing parts of this type is confirmed with reference to the component stock information. Then, the elevation mechanism 75 is controlled so that the base material of the storage stage reaches a component supply stage or a standby stage (described later).

The electronic component supply device according to the present embodiment has the above-described configuration. Next, the operation of the electronic component supply device according to the present embodiment will be described with reference to FIGS. FIG. 10 shows that the base members 4P, 4Q, 4R, and 4S on which the trays 5 are stacked are stored in the storage stages of the storage shelf CA, and the base materials 4T, 4U, and 4V are stored in the storage shelf CB. At the same time, the lowermost base material 4W of the storage shelf CB is pulled out onto the second table T2, and the table T2 is located in the component supply area A2. Then, the nozzle 17b of the component take-out head 17 picks up the electronic component P from the uppermost tray 5 stacked on the base material 4W and attempts to transfer it to the camera stage 23. The first table T1 is located slightly below the base member 4P stored at the top of the storage shelf CA, and has the engaging claws 46 protruding. When the motor 35 is driven from this state to raise the table T1 by a small distance, the engaging claw 46 can be engaged with the side edge 4c of the base member 4P. In FIGS. 10 to 17, for simplicity, the storage shelves CA and CB are shown as storing four base materials, respectively, but it goes without saying that four or more base materials may be stored.

Reference numeral 46x denotes an engaging claw of the second table T2, A1 denotes a standby area of the first table T1 immediately above the component supply area A2, and A2 denotes a component supply area A2.
Is a waiting area of the second table T2 immediately below the second table T2. These areas A1 to A3 correspond to the storage shelves CA and CB.
It is located forward.

Next, as shown in FIG. 11, in the component supply area A2, the component take-out head 17 reciprocates in the direction of arrow N1, and the electronic components P from the uppermost tray 5 in the take-out area S1 of the second table T2. Are taken out and sequentially transferred onto the camera stage 23 or the component positioning unit 24 by the nozzle 17b. Further, the motor 50 of the first table T1 is operated, and the uppermost base material 4P of the storage shelf CA is moved to the position of the table T as indicated by an arrow N2.
Pulled up on one. The electronic component P mounted on the camera stage 23 or the component positioning unit 24 is picked up by the transfer head H (see FIG. 1) of the electronic component mounting device CM.

Next, as shown in FIG. 12, the electronic component P mounted on the camera stage 23 or the component positioning unit 24 is picked up by the nozzle N of the transfer head H (see FIG. 1) of the electronic component mounting apparatus CM. Is done. Also,
The motor 35 operates while the transfer operation of the electronic component P by the nozzle 17b is repeated in the component supply area A2,
The first table T1 to be used next time is stored in the standby area A1.
Down to the standby area A1 .

Then, the uppermost tray 5 of the base material 4W
Of when the tray 5 of this electronic component becomes out of stock becomes empty, the tray 5 has become the air as indicated by the arrow N4 in FIG. 13, the tray transfer head 18 Pickup
And transfer and collect to the collection area S2. in this way,
The collection area S2 of the emptied tray 5 is replaced with the removal area S
Since it is disposed on the same base member 4 adjacent to the first tray 1, the loss time required for the operation of removing the empty tray 5 can be minimized.

Next, as shown by an arrow N6 in FIG. 14, the second table T2 in the parts supply area A2 is lowered to the lowest stage where the base material 4W of the storage shelf CB is to be stored, and 16 is retracted to the camera stage 23 side, and the first table T1 in the standby area A1
Is lowered to the component supply area A2 as shown by the arrow N8. As described above, since the table holding the base material to be transferred to the next supply area is made to stand by in the standby area immediately near the component supply area A2, the table can be switched very quickly.

Then, the engaging claw 46x is moved in the direction of arrow N7, and the base material 4U on the second table T2 is stored in the lowermost row of the storage shelf CB.

Next, as shown in FIG. 15, from the uppermost tray 5 in the take-out area S1 on the base material 4P that has newly reached the component supply area A2, the electronic components are picked up by the component take-out head 17 as shown by an arrow N9. The component P is taken out, and as shown by the arrow N10, the table T2 is raised to the height of the base material 4V on which the tray from which the component is to be taken out next is placed.

Next, as shown in FIG.
Is pulled out, and the base member 4V on which the tray from which components are to be taken out next is placed is pulled out onto the table T2. Next, as shown in FIG. 17, the second table T2 is raised to the standby area A3 ,
(A) Stand by at A3 . When the removal of the electronic components from the tray 5 on the first table T1 is completed, the first
The table switching operation is performed to move the second table T2 to the component supply area A2 while moving up the table T1 to store the base material 4P in the storage shelf CA.

The electronic component supply device of the present embodiment is provided with two tables, and when one table is in the component supply area, the other table is kept in the standby area.
When the table is switched, the table in the standby area can be immediately brought to the component supply area, and the loss time when switching the tray for supplying electronic components to another type can be reduced. Further, for example, a base material holding a tray storing electronic components to be sent out to the component supply area on an even-numbered basis is placed on the storage shelf CA, and electronic components to be sent out to the component supply area on an odd-numbered side are stored on the storage shelf CB. If the base material holding the tray thus set is placed, the first table and the second table can be alternately positioned in the component supply area, and the effect can be further enhanced.

[0032]

The present invention is constructed as described above.
By mounting the trays on the base material in a stacked state, the amount of stock per electronic component type can be increased while saving space, and more types of electronic components can be supplied. Further, since the stock amount per base material increases, the frequency of replenishment of parts can be reduced. Furthermore, since the empty trays are collected in the collection areas of the respective base materials, it is not necessary to sort the collected trays for each type of electronic component.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an electronic component supply device according to an embodiment of the present invention is set in an electronic component mounting device.

FIG. 2 is a perspective view of an electronic component supply device according to one embodiment of the present invention.

FIG. 3 is a perspective view showing a base material and a tray of the electronic component supply device according to one embodiment of the present invention.

4A is a plan view showing a base material of an electronic component supply device according to one embodiment of the present invention. FIG. 4B is a front view showing a base material and a tray of the electronic component supply device according to one embodiment of the present invention.

FIG. 5 is a perspective view showing a table of the electronic component supply device according to one embodiment of the present invention.

FIG. 6 is a plan view showing a table of the electronic component supply device according to one embodiment of the present invention.

FIG. 7 is a block diagram of an electronic component supply device according to one embodiment of the present invention.

FIG. 8 is a data configuration diagram of component stock information of the electronic component supply device according to one embodiment of the present invention.

FIG. 9 is a data configuration diagram of component supply information of the electronic component supply device according to one embodiment of the present invention.

FIG. 10 is an explanatory diagram of an operation of the electronic component supply device according to one embodiment of the present invention.

FIG. 11 is an operation explanatory view of the electronic component supply device according to one embodiment of the present invention.

FIG. 12 is an operation explanatory view of the electronic component supply device according to one embodiment of the present invention.

FIG. 13 is an operation explanatory view of the electronic component supply device according to one embodiment of the present invention.

FIG. 14 is an operation explanatory diagram of the electronic component supply device according to one embodiment of the present invention.

FIG. 15 is an operation explanatory view of the electronic component supply device according to one embodiment of the present invention.

FIG. 16 is an operation explanatory view of the electronic component supply device according to one embodiment of the present invention.

FIG. 17 is an operation explanatory view of the electronic component supply device according to one embodiment of the present invention.

FIG. 18 is a perspective view showing a base material and a tray used in a conventional electronic component supply device.

[Explanation of symbols]

 4 Base material 5 Tray 17 Component take-out means 18 Tray removing means 35 Elevating means 36 Elevating means P Electronic components CA Housing CB Housing T1 Table T2 Table A2 Parts supply area S1 Extraction area S2 Collection area

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65G 1/00-1/20 B23P 19/00-21/00 307

Claims (3)

(57) [Claims] 1. A base material on which trays are stacked and placed, a storage body for storing the base material in a plurality of stages, and a base material in front of the storage body and pulled out from the storage body by a drawer means. An electronic component supply device comprising: a supporting table; and a base material on which a tray is stacked and placed, and an extraction area for taking out electronic components mounted on a substrate from the tray and an unnecessary tray are placed. An electronic component supply device having two collection areas and a tray removing means for collecting, in the collection area, an empty unnecessary tray in which electronic components have run out of stock in the removal area. 2. The electronic component supply apparatus according to claim 1, wherein said tray removing means is provided integrally with component picking means for picking up and picking up electronic components from a tray in said picking up area. 3. A storage body for storing a plurality of base materials on which trays for storing electronic components are mounted, and a table in front of the storage body for supporting the base material drawn out of the storage body by a drawer. Wherein the base material has two areas: a take-out area on which trays are stacked and placed to take out electronic components mounted on a substrate from the tray and a collection area for placing unnecessary trays. an electronic component feeding method using a feeder tray electronic components of the take-out area if becomes out of stock, the unwanted tray emptied by tray removal means is adapted to recover the collection areas An electronic component supply method, comprising: