JP3063275B2 - Electronic component mounting apparatus and electronic component mounting 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 mounting apparatus for automatically changing a part feeder of a table moving device.
And electronic component mounting methods .

[0002]

2. Description of the Related Art As an electronic component mounting apparatus, a table on which a part feeder such as a tape feeder or a tube feeder is arranged is provided on a table moving device provided behind a mounting apparatus main body, and the table is reciprocated in a horizontal direction. While moving, the electronic parts of the parts feeder on the table,
2. Description of the Related Art A mounting apparatus that picks up by a transfer head and transfers and mounts it on a substrate has been widely implemented.

However, in recent years, as the mounting speed of the mounting apparatus has been increased, the consumption speed of electronic components has been increased, and the frequency of replacement of the parts feeder has been increased. It had to be moved to a mobile device, which was extremely troublesome.

As a countermeasure, the present applicant has previously proposed an automatic replacement device for a parts feeder (JP-A-63-60).
599).

In this apparatus, a table (table moving device) 12 provided behind a component mounting unit (mounting apparatus main body) 14 reciprocates a table 3 in which component cassettes (parts feeders) 1 are arranged in a horizontal direction. A table 32 on which a spare component cassette 1 is juxtaposed is provided behind the table 12 so as to be movable. When the electronic components of the component cassette 1 on the table 12 are exhausted, the rod 28a of the cylinder 28 provided on the table 32 is expanded and contracted, and the empty component cassette 1 on the table 12 and the spare component cassette on the table 32 1 is automatically replaced one by one.

[0006]

However, the parts feeder such as the parts cassette 1 has an unstable posture due to its narrow width in spite of its high height, and the parts feeder fluctuates during replacement. There was a problem that it was not possible to smoothly take in and out for replacement. Further, since the table 32 is fixed on the floor, there is a problem that the replacement place of the parts feeder is limited.

Accordingly, the present invention provides an electronic component mounting apparatus and an electronic component mounting method capable of smoothly performing a replacement operation of a parts feeder and increasing a degree of freedom of a replacement position of the parts feeder. Aim.

[0008]

SUMMARY OF THE INVENTION The present invention To this end, an electronic component mounting apparatus main body, and the table moving device which is disposed behind the electronic component mounting apparatus main body, on the moving base of the table moving device An electronic device comprising: a table provided to be able to reciprocate in the X direction; and a transfer head provided on the electronic component mounting apparatus main body, for picking up an electronic component of a parts feeder and transferring the electronic component to a substrate positioned on an XY table. In the component mounting apparatus, an exchange table on which the parts feeders are arranged side by side is mounted on the table so as to be freely slid in the Y direction, and a spare parts feeder is arranged behind the table moving apparatus. A self-propelled trolley equipped with a set exchange table, and this self-propelled trolley
Moves in the X direction behind the table moving device.
In addition, a changer for replacing the exchange table on the table with the exchange table on the cart is provided on the cart.
The electronic components on the base table
The replacement table with the parts feeder
Collect on the trolley and add a new parts feeder on the trolley
Replenish the replacement table provided on the base table
It is like that .

[0009]

According to the above arrangement, when the electronic component parts feeder on the table moving device it runs out, tape dolly
By moving the changer behind the movable table in the X direction , the changer is driven, the exchange table having the empty parts feeder is pulled out from the base table and collected on a cart, and then a new parts feeder on the cart is removed. Refill the replacement table with the empty base table thus drawn.

[0010]

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

FIG. 1 is a perspective view of an electronic component mounting apparatus according to the present invention. Reference numeral 1 denotes an electronic component mounting apparatus main body, which is provided with a rotary head 2 having a large number of transfer heads 3. An XY table 4 for positioning the substrate 5 is provided below the rotary head 2. The XY table 4 moves the substrate 5 in the XY directions. Reference numeral 10 denotes a table moving device, which is disposed behind the electronic component mounting device main body 1. Next, the detailed structure will be described.

Reference numeral 11 denotes a moving table serving as a main body of the table moving apparatus 10, on which a plurality of base tables 12 are mounted. In the present embodiment, eight base tables 12 are provided. By dividing the base table 12 into a large number in this way, the weight of the base table 12 is reduced, and the base table 12 can be moved on the movable base 11 at high speed. Reference numeral 16 denotes a guide provided on both sides of the base table 12, and reference numeral 17 denotes a positioning portion provided at the tip of the table 12. The guide 16 and the positioning unit 17 are provided for guiding and positioning the exchange table 50 (described later).

A linear guide 13 extending in the horizontal direction (X direction) is provided on the movable base 11. As shown in FIG. 2, a slider 14 that engages with the linear guide 13 is provided on the lower surface of the base table 12, and the base table 12 moves laterally along the linear guide 13. An exchange table 50 is slidably mounted on the base table 12 in the Y direction. The exchange table 50 has a large number of tape feeders 15 as parts feeders. The exchange table 50 is guided by the guide 16 on the table 12 and slides in the Y direction. In the present invention, the moving table 11
Length direction (base table 12 along linear guide 13)
Direction of movement) is called the X direction, and the direction orthogonal to this direction.
Is called the Y direction.

In FIG. 2, reference numeral 51 denotes a handle, which is provided at the rear end of the exchange table 50. Reference numeral 52 denotes a long plate-shaped positioning member, which is provided on the lower surface of the exchange table 50. As shown in the partial enlarged view of FIG. 2, when the replacement table 50 is placed on the base table 12, the tip taper portion 52a of the positioning member 52 becomes
7. The replacement table 50 is positioned in the Y direction by firmly contacting the tapered portion 17a of the seventh table 7 by a wedge action. Reference numeral 53 denotes a clamper, which is provided behind the base table 12. The exchange table 50 is clamped and fixed by the upper end of the clamper 53 being removably engaged with the rear end tapered portion 52b of the positioning member 52. The transfer head 3 has a nozzle 6 and picks up the electronic component P of the tape feeder 15. As the parts feeder, the tape feeder 15 as described above is used.
In addition, a tube feeder is often used.

In FIG. 1, the center of the movable table 11 is a work area A, and both sides are retreat areas B1 and B2. In the work area A, two ball screws 21 and 22 are provided. By rotating these ball screws 21 and 22 by a motor (not shown), the electronic component P is picked up by the transfer head 3 while the base table 12 is moved in the work area A in the lateral direction with high feed accuracy. I do.

On the back of both sides of the moving table 11, there is a table 11a.
A driving means for the clamper 53 described below is provided on the base 11a. That is, in FIG. 2, reference numeral 54 denotes a slider of the clamper 53, and reference numeral 55 denotes a pair of rollers protruding from both ends of the slider 54, and a handle 53 a of the clamper 53 is provided between these rollers 55. positioned. Reference numeral 56 denotes a guide rail, which is provided on the base 11a. Reference numeral 57 denotes a slider, which is provided on the lower surface of the slider 54. Reference numeral 58 denotes a cylinder, and when the rod 59 is protruded and retracted, the slider 54 moves in the front-rear direction along the guide rail 56,
The handle 5 of the clamper 53 is attached to one of the front and rear rollers 55.
The contact of 3a rotates the clamper 53 rightward or leftward, and clamps and releases the exchange table 50 with respect to the base table 12.

In FIG. 2, reference numeral 60 denotes a cylinder provided as a positioning means provided at a lower portion of the movable base 11. After the movement of the self-propelled bogie 63 (to be described in detail later) is stopped, the rod 61 of the cylinder 60 is protruded and fitted into a positioning hole 62 provided in the bogie 63 so that the X of the bogie 63 is reduced.
Direction positioning is performed.

In FIG. 1, the cart 63 is located behind the table moving device 10. 64 casters (see FIG. 2). T is an aluminum foil tape, which is stuck to the floor along the table moving device 10, and along this tape T, the carriage 63 is free to run laterally. As described above, since the cart 63 is a self-propelled type, the parts feeder 15 can be replaced at an arbitrary position behind the table moving device 10.

The carriage 63 is constructed by standing frames 131 on both sides of a base portion 130, and the following components are disposed between the frames 131. In FIG. 1, reference numeral 66 denotes an elevator, which is provided between the frames 131. In FIG. 2, reference numeral 67 denotes a vertical guide rail provided on the inner surface of each frame 131. In FIG. 3, reference numeral 120 denotes a slider provided on both sides of the elevating table 66 and fitted to the guide rail 67, reference numeral 68 denotes a ball screw, Numerals 69 are provided at both ends of the elevating table 66 and screwed to the ball screw 68, 70 is a bearing of the ball screw 68, 71 is a pulley mounted on the lower end of each ball screw 68, and 73 is a motor. A pulley driven by the MZ 72 is a timing belt tuned to the pulleys 71 and 73, and 74 in FIG. 3 is a pressing roller for applying tension to the timing belt 72. When the timing belt 72 rotates by the driving of the motor MZ, the ball screw 68 rotates and the guide rail 67 rotates.
The elevating table 66 moves up and down along. In this case, as shown in FIG. 3, the pulleys 71 of the left and right ball screws 68 are rotated by the same timing belt 72, so that the left and right ball screws 68 rotate at the same speed, and the lift 66 moves up and down smoothly without blurring. .

In FIG. 2, reference numeral 110 denotes a level sensor such as an infrared sensor. The level sensor 110 includes a light emitting unit 110a provided on the front surface of the elevating table 66 and a light receiving unit 110b provided on the rear surface of the base unit 11a. The guide rail 87 is provided on the exchange table 50.
The slide in the Y direction is guided, and the lift 66 is a guide.
Adjust the height of the rail 87. When the lift 66 moves up and down, the light emitted from the light emitting unit 110a is received by the light receiving unit 110b.
, The height of the elevating table 66 is detected, and the height L1 of the upper surface of the base table 12 and the height L2 of the upper surface of the guide rail 87 on the trolley 63 are matched with each other. The exchange table 50 can be slid smoothly between the guide rails 87.

In FIGS. 2 and 3, reference numeral 77 denotes the lift 6
6 is a movable plate disposed on the moving plate 6. Reference numeral 79 denotes a guide rail extending in the X direction, and is provided on the elevating table 66.
Reference numeral 80 denotes a slider provided on the lower surface of the moving plate 77,
The guide rail 79 is fitted. 81 is a ball screw in the X direction. In FIG. 3, bearings 82 are provided at both ends of the ball screw 81, and are provided on both sides of the elevating table 66. In FIG. 2, reference numeral 83 denotes a nut provided on the lower surface of the moving plate 77, which is screwed to the ball screw 81. 84 and 85 are pulleys, 86 is a timing belt, and MX is an X-direction motor. When the timing belt 86 rotates by the driving of the motor MX, the ball screw 81 rotates, and the moving plate 77 moves in the X direction along the guide rail 79.

In FIG. 3, reference numeral 87 denotes a guide rail in the Y direction, which is provided on the movable plate 77. The guide rails 87 guide the movement of the exchange table 50 in the Y direction. 99 is a guide part.

In FIGS. 2 and 3, reference numeral 88 denotes a moving element. Reference numeral 89 denotes a cylinder, which is disposed on the moving element 88. The cylinder 89 opens and closes a chuck claw 90 for chucking the handle 51 of the exchange table 50. 91
Are ball screws in the Y direction provided between the left and right guide rails 87.
7. In FIG. 2, reference numeral 93 denotes a nut, which is provided on the lower surface of the moving element 88. 94, 95
Is a pulley, 96 is a timing belt, and MY is a motor in the Y direction. When the timing belt 96 rotates by the driving of the motor MY, the ball screw 91 rotates, and each moving element 88 moves in the Y direction. During this move,
The cylinder 89 is driven to open and close the chuck pawl 90,
By chucking or releasing the grip 51 of the exchange table 50, the exchange table 50 is pulled out from the base table 12 and collected on the carriage 63. These components MY, 89 to 96, constitute a changer for exchanging the exchange table 50 on the base table 12 and the exchange table 50 on the carriage 63.

This apparatus has the above-described configuration, and the operation will be described next. In FIG. 1, the base table 12 is moved to the work area A of the movable base 11 along the linear guide 13. Next, while rotating the base table 12 in the working area A by rotating the ball screws 21 and 22, the rotary head 2 is rotated by an index, and the tape feeder 1 is moved by each transfer head 3.
5 is picked up (see FIG. 2) and mounted on the substrate 5 of the XY table 4.

If the electronic component P of any of the tape feeders 15 is out of stock during mounting of the electronic component P,
Base table 1 on which this tape feeder 15 is placed
2 is evacuated to the evacuation area B1 or B2. At the same time, the base table 12 which has been retreated to the other retreat area B2 or B1 is moved into the work area A, and the same transfer operation of the electronic component P as described above is performed.

During this operation, the bogie 63 is moved to the evacuation area B1.
Alternatively, it moves behind the base table 12 on which the empty tape feeder 15 retracted to B2 is placed. Then, FIG.
By driving the positioning cylinder 60 to fit the rod 61 into the positioning hole 62 of the carriage 63,
The carriage 63 is positioned in the X direction.

Next, referring to FIG.
Is driven, the motor MZ is driven to rotate the ball screw 68, and the lift 66 is moved up and down. Thus, the height L1 of the base table 12 and the guide rail 87
Height L2.

Next, the cylinder 58 is driven to release the clamped state of the exchange table 50 by the clamper 53. Next, the motor MY is driven to move the chuck claws 90 to the movable table 11 side. Next, the cylinder 89 is driven to close the chuck claws 90 and the handle 51 of the exchange table 50 is moved.
Chuck. Next, the motor MY is driven in the reverse direction to retract the chuck claws 90, whereby the exchange table 50 is collected on the carriage 63 along the guide rail 87.

Next, referring to FIG. 2 and FIG.
The ball screw 81 is rotated by driving the X, and the moving plate 77 is rotated.
Are moved in the X direction, and the spare exchange table 50 on the moving plate 77 is made to face the empty base table 12 by pulling out the exchange table 50 as described above. Next, the motor MY is driven to move the moving plate 77.
The upper spare exchange table 50 is refilled to the base table 12. Next, the chuck jaws 90 are released to return the movable element 88 to the standby position shown in FIG.
The cylinder 58 is driven to clamp the replacement table 50 refilled on the base table 12 by the clamper 53, and the table replacement is completed.

As described above, the present means comprises the tape feeder 15
When the electronic component P is out of stock, the replacement table 50 on which the tape feeder 15 is placed is replaced, so that the replacement operation can be performed smoothly.

[0031]

As described above, the invention according to claim 1 is described above.
According to the electronic parts feeder on the table moving device
When parts are out of stock, move the cart in the X direction.
The parts feeder replacement work smoothly.
Can be. According to the invention described in claim 2, the side portion of the moving table
Position the cart firmly in the designated position in the evacuation area
The exchange table on the mobile platform can be collected on a cart.
Wear. According to the third aspect of the present invention, the exchange table is
Slide along the idling rail and
Slide the exchange table smoothly between
Work can be done. According to the invention described in claim 4,
The electronic parts of the parts feeder on the table moving device are out of stock.
When this happens, move the cart in the X direction to
It is possible to smoothly perform the work of replacing the feeder.
According to the fifth aspect of the present invention, the evacuation area on the side of the movable base is provided.
A.
The upper exchange table can be collected on a cart.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a main part according to the present invention.

FIG. 3 is a plan view of the same according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus main body 3 Transfer head 5 Substrate 10 Table moving device 12 Base table 15 Parts feeder 50 Exchange table 63 Dolly P Electronic component

Claims (5)

(57) [Claims] An electronic component mounting apparatus main body, a table moving device provided behind the electronic component mounting apparatus main body, and a base table provided on a moving table of the table moving device so as to be reciprocally movable in the X direction. And a transfer head provided on the main body of the electronic component mounting apparatus for picking up an electronic component of a parts feeder and transferring the mounted electronic component to a substrate positioned on an XY table.
An exchange table on which the parts feeders are juxtaposed is slidably mounted in the Y direction on the base table, and a replacement table having spare parts feeders juxtaposed behind the table moving device is provided. A traveling trolley is arranged, and this self-propelled trolley is
The base table is made to run by itself in the X direction, and a changer for exchanging the exchange table on the base table with the exchange table on the cart is provided.
Place the parts feeder on which the electronic components on the
The exchange table collected on this trolley and the new
Replacement table with Tana Parts Feeder
An electronic component mounting apparatus characterized by being refilled on a table . 2. The evacuation area is located on the side of the moving table.
Positioning for positioning the cart in the evacuation area in the X direction
Means in the evacuation area,
That the replacement table of
The electronic component mounting apparatus according to claim 1, wherein: 3. A sliding table in the Y direction of the exchange table.
Guide rail for guiding the guide and the height of this guide rail
Equipped with an elevator that adjusts the height, and detects the height of the elevator
Level sensor, and the base table
The height of the upper surface of the
3. The method as claimed in claim 1, wherein:
Electronic component mounting apparatus according to the above. 4. A base tape in which parts feeders are juxtaposed.
The table on the table of the table moving device in the X direction.
By using the transfer head, the electronic components of this parts feeder
That picks up and transfers it to the substrate
In the component mounting method, If the electronic components in the parts feeder are out of stock,
Moving table To the evacuation area on the side of
Self-propelled in the X direction on the exchange table on this base table
The trolley moved to the evacuation area.
After picking up the parts, new parts
Replacement table with a loader based on a changer
An electronic device characterized by being refilled on a table
Component mounting method. 5. A positioning means in the retreat area.
The positioning of the carriage in the X direction is further performed.
The electronic component mounting method according to claim 4.