JPH088430B2 - Electronic component mounting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic component mounting apparatus for mounting electronic (chip) components on a printed circuit board, and in particular, improves the usability of an operator to facilitate driving operation. In addition, the present invention also relates to an electronic component mounting apparatus suitable for reducing the installation area of the apparatus.

[Prior Art] A conventional electronic component mounting apparatus is disclosed in, for example, JP-A-55-1186.
As described in Japanese Patent Publication No. 98, the main part of which is shown in FIG.
A linear drive table 13 that selectively moves a plurality of chip component supply units 11 that supply taped chip components to a position corresponding to the chip component mounting unit 12 is a component mounting unit.
It is proposed that the device be installed on the opposite side of the operator of the device centering on 12.

[Problems to be Solved by the Invention]

In the above-mentioned conventional technique, since the chip component supply unit 11 is linearly arranged on the straight-ahead table, in order to move any chip component supply unit to the position of the chip component mounting unit, the moving distance of the table is the table. The length is required to be approximately twice the length.

Therefore, if the number of chip component supply units installed is increased, the length of the table inevitably becomes longer, and
A large installation area was required compared to the width of the device body.

In addition, the chip component supply unit installed further to the far right
In the case where the chip component supply unit 11b to be selected next from 11a is on the left side of the table, the amount of movement of the table becomes large, so that there is a problem that the time required for the movement increases and the takt time is lost.

On the other hand, such an electronic component mounting device has a substrate supply device, a solder printing device, or an adhesive application device as a pre-process, and an adhesive curing device, a solder reflow device, etc. are formed on one line as a post process. The operation side of the device, which is often juxtaposed as described above, may be separated from the rear surface.

For this reason, when the board to be produced changes and it becomes necessary to change the type of parts, the operator has to go around behind the device and operate the chip part supply unit. There is a problem in that the operation is inconvenient and the operation rate of the device is lowered.

An object of the present invention is to solve the problems of the above-mentioned conventional electronic component mounting apparatus, improve the usability of the operator and facilitate the driving operation, and at the same time, reduce the installation area of the apparatus. An object is to provide an electronic component mounting device.

[Means for solving the problem]

In order to achieve the above-mentioned object, the electronic component mounting apparatus of the present invention has (i) a door for supplying electronic components and a door for replacing a printed circuit board on one side surface, and the doors are provided above and inside the interior. A box-shaped frame with a fixed base, and (ii) a plurality of electronic component supply means are removably and radially attached to the upper surface of a circular table so as to be rotatable in the frame lower part and the door side down. And (3) the printed circuit board positioning means installed on the table in the frame, and the printed circuit board mounted on the printed circuit board positioning means, and the electronic parts in the rotary table. Electronic component mounting means for mounting the electronic component taken out from the supply means, and (iv) a plurality of cams are provided on the same shaft, and as the shaft rotates,
The electronic component supplied at the lowermost position on the door side of the inclined rotary table is transferred from the electronic component supply means at a position reaching the uppermost method on the opposite door side of the rotary table via the electronic component mounting means. At the same time, the synchronous drive means for repeatedly synchronizing and operating the electronic components that have been taken out and mounted on the printed circuit board placed on the printed circuit board positioning means is provided.

[Action]

With the above configuration, it becomes possible to perform operations such as machine operation and monitoring / correction of device status, and supply / replacement of parts such as chip parts and printed circuit boards, etc. on only one side of the device. Conventionally, the above operations and the supply / replacement of parts are performed on different sides, and the operator turns around from the front side of the device to the rear side of the device and vice versa, from the rear side of the device to the front side of the device. You can recall the trouble you were working on. Therefore, the usability of the operator is improved, and the driving operation can be easily performed. Further, since the respective units are three-dimensionally arranged in the vertical direction, it becomes possible to reduce the installation area of the entire apparatus while improving the usability for the operator.

〔Example〕

The present invention will be described below with reference to FIGS. 1 to 4 in which a chip component mounting apparatus is embodied.

As shown in FIGS. 1 and 2, the chip component mounting apparatus 1 of the present invention rotates the rotary table 3 and the rotary table 3 which rotates in both the forward and reverse directions with the upper surface inclined in the frame 2. The driving means 4, a plurality of chip component supplying means 5 radially and removably mounted on the rotary table 3, the printed circuit board positioning means 6 arranged above the lowermost position of the rotary table 3, and the uppermost side. The chip component mounting means 7 arranged above the chip component supply means 5 and the printed circuit board positioning means 6 which have reached the positions;
It is composed of a synchronous drive means 8.

 In addition, 9 of a figure is a printed circuit board.

 Next, the configuration of each unit will be described in more detail.

The frame 2 is in the shape of a closed box, and the door 21 for replacement of the chip component supply means 5 and the door 22 for replacement of the printed circuit board 9 can be freely opened and closed on the left side of the operation side of FIG. It is installed, and an upper table 23 is fixed above the inside, and a central table 24 is fixed on the substantially left side of the center.

In the rotary table 3, a circular table is installed in the lower part of the frame 2 so that the left side is the lowermost position and the right side is the uppermost position with respect to FIG. A plurality of jigs 31 are radially attached to the upper surface of the circular table. Then, the turntable 3 is rotated in both forward and reverse directions by the turntable drive means 4 in an inclined state. The chip component supply means 5 is detachably attached to each of the plurality of jigs 31.

In the rotary table drive means 4, when the forward / reverse DC motor 42 fixed to the bottom surface of the frame 2 via the bracket 41 is driven, the driven pulley 45 is rotated via the drive pulley 43 and the timing belt 44, and the frame is rotated. The shaft 48 fixed to the lower surface rotation center position of the rotary table 3 rotates via the bearing box 47 fixed to the bottom surface of the bracket 2 via the bracket 46.

As shown in FIG. 4, the plurality of chip component supplying means 5 are
Paper tapes (or plastic tapes) 501 for accommodating both ends of a plurality of chip parts (not shown) at equal intervals are engaged with sprocket wheels 502 through sprocket holes (not shown) at both ends thereof. In this sprocket wheel 502, when a tip end portion of a lever 503 connected to the synchronous drive means 8 is pushed down and the ratchet lever 504 is rotated to rotate, a paper tape 501 is sent, and the paper tape 501 is fixed so as not to drop the chip component. The upper tape 505 adhered by the adhesive force is peeled from the paper tape 501 at the tip of the pressing plate 506 pressing from above the paper tape 501 and wound around the reel 507. Therefore, at the tip of the tip of the pressing plate 506, the chip components stored in the paper tape 501 are taken out by the chip component mounting means 7. Then, when the sprocket wheel 502 rotates by a certain pitch, the tip of the fixed claw 508 engages and the rotation is stopped. As shown in FIG. 1, the lever 503 has a lever 511 which is swingably supported via a pin 510 by a bracket 509 fixed to the frame 2 when the chip component supply means 5 reaches the uppermost position. Touch the bottom edge. This lever 511 has its upper end connected to the lever 51 via a bar 512 and a flexible joint 513 as shown in FIG. 3, and this lever 514 is connected to the camshaft 8 of the synchronous drive means 8.
A cam follower 516, which is pushed down by a cam 515 supported by 14, is fixed to the end.

Therefore, the chip component supply means 5 reaching the uppermost position
Is the cam 5 supported by the cam shaft 814 of the synchronous drive means 8.
By the rotation of 15, the lever 503 automatically moves downward so that the chip component can be taken out by the chip component mounting means 7. When the rotary table 3 rotates, it rotates from the uppermost position. Lever 503 is lever 511
Even if the lever 511 moves downward due to the rotation of the cam 515, the lever 503 does not operate.

The printed circuit board positioning means 6 includes a base 601 having a shape on the center stand 24, two X-direction guide bars 602 having both ends fixed to the base 601, and both ends rotatably supported by the base 601. And an X-direction feed screw (not shown) that is rotated by the X-direction DC servo motor 603, is screwed to this X-direction feed screw via a nut 604, and slides on the two X-direction guide bars 602 in the X-direction. A freely movable X-direction moving table 605, two Y-direction guide bars 606 having both ends fixed to the X-direction table 605, and an X-direction table 6
Both ends are rotatably supported by 05 Y direction DC servo motor
The Y direction feed screw 608 rotated by 607 is screwed to the Y direction feed screw 608 via a nut (not shown), and is supported slidably in the Y direction by two Y direction guide bars 606. And a Y-direction table 609 on which the printed circuit board 9 is detachably mounted.

Therefore, the printed circuit board positioning means 6 moves the printed circuit board 9 between the solid line position and the two-dot chain line position shown in FIG.
Since it is possible to move and position in the same direction as the Y direction which is perpendicular to the direction, the mounting positions of the chip components sequentially mounted on the printed circuit board 9 can be sequentially positioned.

The chip component mounting means 7 is rotatably fitted on the upper base 23 and fixedly supports two discs 702 and 703 arranged in parallel at a lower end portion of a shaft 701 connected to the synchronous drive means 8 with a space therebetween. are doing. These two discs 702 and 703 have four bushes 704 press-fitted at equal intervals in the circumferential direction, and the center of each of these four bushes 704 is vacuumed by vacuum air at the tip of the chip component supply means 5. A nozzle 705 for adsorbing a chip component is provided so as to be vertically movable. Each of these nozzles 705 has an upper flat plate 70 via a spring 706.
7 is connected to a rod 708 which is always pressed upwards. Of these four flat plates 707, above one of the two facing flat plates 707, one end portion of a lever 711 swingably supported on the lower surface of the upper base 23 via a bracket 709 and a pin 710 is provided. Kamufoloa 712 is in contact. As shown in FIG. 2, one end of a lever 714 is connected to the other end of the lever 711 via a flexible joint 713. The lever 714 has a swing center portion supported by the upper table 23 and the other end portion. The cam follower 715 is connected to two cams 716 supported by the cam shaft 814 of the synchronous drive means 8.

Therefore, the chip component mounting means 7 is synchronized with the synchronous drive means 8
When the two cams 716 are rotated by the cam shaft 814 of the above and the cam follower 712 at one end of the lever 711 moves downward,
The two opposing rods 708 and nozzle 705 move downward due to the elastic force of the spring 706. Therefore, the nozzle 705 on the chip component supply means 5 side at the uppermost position adsorbs the chip component at the lower end thereof, and at the same time, the nozzle 705 on the printed circuit board 9 side mounts the chip component on the printed circuit board 9.

Then, one nozzle 705 completes the suction of the chip component, and the other nozzle 705 picks up the chip component on the printed circuit board 9.
When the cam follower 712 moves upward after the installation is completed,
The rod 708 and the nozzle 705 move to the original upper position by the elastic force of the spring 706.

Then, when the shaft 701 is rotated by the synchronous drive means 8, the two discs 702 and 703 and the four rods 708 and the nozzle 705 are rotated by 90 °, and the other two flood plates 707 facing each other are turned to the cam follower 712. The above operation is repeated in contact with each other, and the chip components are sequentially taken out from the chip component supply means 5 which reaches the uppermost position and mounted on the printed circuit board 9.

The synchronous drive means 8 is supported on the upper table 23 as shown in FIG. 3, and when the motor 801 is driven, the coupling 802
The output shaft 804, which is decelerated to a predetermined rotation speed by the speed reducer 803 connected via, rotates the input shaft 808 via the two pulleys 805 and 806 and the timing belt 807, and transmits it to the synchronization unit 809. The synchronizing unit 809 rotates the shaft 701 of the chip component mounting means 7, and the output shaft 810 rotates the cam shaft 814 in a fixed relationship with the shaft 701 via the two pulleys 811 and 812 and the timing belt 813. This camshaft 814 is rotatably supported at its both ends by two brackets 815, and has three cams 515, 716.
Thus, as described above, when the chip component supplying means 5 and the chip component mounting means 7 are related to each other, that is, when the chip component supplying means 5 reaches the uppermost position with the rotation of the rotary table 3, the lever of the chip component supplying means 5 is reached. The tip part of 503 is pushed down to bring the chip part out of the paper tape 501, and at the same time, the nozzle 70 of the chip part mounting means 7
The lower end portion of 5 absorbs the chip component and mounts the chip component on the printed circuit board 9.

Since the chip component mounting apparatus 1 according to the present invention is configured as described above, its operation will be described below.

When the rotary table 3 is rotated by the rotary table driving means 4, the chip component supplying means for mounting the chip component supplying means 5 on the rotary table 3 in sequence according to the order of mounting on the printed circuit board 9 is selected. 5 is transferred to the uppermost position. Also turntable 3
By enabling the rotation in both forward and reverse directions, the required chip component supply means 5 can be transferred to the uppermost upper position at the minimum rotation angle.

When the chip component supply means 5 sequentially reaches the uppermost position in this manner, the synchronous drive means 8 drives the chip components so that they are separated from the paper tape 501 and taken out, and the nozzles 705 of the chip component mounting means 7 cause the chip components to be removed. Chip components are sequentially mounted on the printed circuit board 9 that picks up the components and at the same time stands by at a predetermined position in advance.

Then, when the mounting of the predetermined chip parts on the printed circuit board 9 is completed, the printed circuit board positioning means 6 moves the printed circuit board 9 to the position indicated by the solid line in the left direction with respect to FIG. 1, and the door 22 is opened. The printed circuit board 9 is replaced and the printed circuit board positioning means 6 moves it to the position of the two-dot chain line in the right direction with respect to FIG.

On the other hand, when the chip component supply means 5 having no chip components reaches the lowermost position, the door 21 is opened and the chip component supply means 5 is replaced with the new chip component supply means 5. In the above-mentioned embodiment, the case where the chip component supply means is used to mount the chip component has been described, but the present invention is not limited to this, and it is conceivable that only the chip component is supplied.

〔The invention's effect〕

Since the present invention is configured as described above,
It improves the usability of the operator and makes driving easier.
In addition, there is an effect that the installation area of the device can be reduced.

[Brief description of drawings]

FIG. 1 is a side view showing a chip component mounting apparatus according to an embodiment of the present invention, FIG. 2 is a front view of the embodiment, and FIG.
FIG. 4 is a plan view taken along the arrow A in FIG. 4, FIG. 4 is an enlarged perspective view of the chip component supply means, and FIG. 5 is a perspective view showing a conventional chip component mounting apparatus. 1 ... Chip component mounting device, 2 ... Frame, 3 ... Rotating table, 4 ... Rotating table driving means, 5 ... Chip component supplying means, 6 ... Printed board positioning means, 7
...... Chip component mounting means, 8 ...... Synchronous drive means, 9 ......
Printed board

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masato Itagaki Masato Itagaki 502 Jinritsu-cho, Tsuchiura-shi, Ibaraki Institute of Mechanical Research, Hiritsu Manufacturing Co., Ltd. (72) Keisuke Fujishiro 390 Muramatsu, Shimizu-shi, Shizuoka Hitachi, Ltd. Shimizu Plant (56) Reference JP-A-59-47799 (JP, A) JP-A-52-116869 (JP, A)

Claims (1)

[Claims] 1. A box-shaped frame having: (i) doors for supplying electronic components and replacing a printed circuit board on one side surface, and a base fixed to the upper part and the central part of the inside; ii) a rotary table in which a plurality of electronic component supply means are removably and radially attached to the upper surface of a circular table, and the rotary table is rotatably installed in the lower part of the frame and tilted with the door side down, (Iii) A printed circuit board positioning means installed on the table in the frame, and an electronic component for mounting the electronic component taken out from the electronic component supply means on the rotary table to the printed circuit board mounted on the printed circuit board positioning means. Mounting means, and (iv) a plurality of cams on the same shaft, with the rotation of the shaft,
The electronic component supplied at the lowermost position on the door side of the tilted rotary table is moved from the electronic component supply means to the uppermost position on the opposite door side of the rotary table via the electronic component mounting means. An electronic component mounting apparatus comprising: a synchronous driving unit that takes out the electronic components and, at the same time, repeatedly and synchronously operates so that the electronic components that have already been taken out are mounted on the printed circuit board placed on the printed circuit board positioning unit. .