JPH0344053A - Conveying equipment of electronic parts - Google Patents

Abstract

PURPOSE:To reduce detection processing period and facilitate conveyance control of electronic parts, by inspecting whether imperfect sockets are contained in conveyed board, inspecting each socket of only the boards for which it is dicided that imperfect sockets are contained, and detecting the imperfect sockets. CONSTITUTION:A first line 1 carries electronic parts 2 which have not yet been processed into an exchanging station, exchages the above parts for electronic parts 2 in a second line 4 which have been processed, and delivers the electronic parts 2 which have been processed to the next electronic parts inspection process. The exchanging station is provided with the following; a detecting means 10 for detecting boards 5 requiring inspection aging in the second line 4, and for detecting whether sockets 6 on said boards 5 are acceptable, and a stocker 13 on which the electronic parts 2 are temporarily put when the sockets 6 are defective. When an aging board 5 having a defect mark 21' and requiring inspection is detected in the second line 4, whether the socket 6 is acceptable is detected before the electronic parts 2 is transferred to the first line.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an electronic component transport device.

(Prior Art) Electronic components (for example, ICs) are subjected to aging in order to stabilize their characteristics by energizing them for a certain period of time to bring them into an operating state after they are manufactured and prior to their practical use. A tray line is used as a general transport device for electronic components for aging, and a tray line is used to place multiple electronic components before aging on a tray for general transport, and a tray line is used to store electronic components on a board for aging. There is a method of installing a board line for general transport with a tray line and a transfer means for transferring electronic components from the tray line to the board line (for example, Japanese Patent Laid-Open No. 62-2
(See Publication No. 49821). That is, in this device, the transfer means is provided with a suction cup for attaching and detaching the electronic components, so that the electronic components picked up from the trays 1 to 1 can be automatically transferred to the sockets on the board. Electronic components are placed in sockets and subjected to aging together with the circuit board.

(Problems to be Solved by the Invention) By the way, if the socket has defects such as breakage, it cannot be used for aging electronic components.

Therefore, in the case of the electronic component transport device described above, the transfer means automatically transfers the electronic component from the tray to the socket on the board, so if there is a defective socket on the board, the electronic component in the defective socket can be removed later. Either remove it manually or the defective socket 1
It takes a lot of effort to fix a board with ~, and the latter method also makes it impossible to use even normal sockets.
There is a lot of waste.

(Means for Solving the Problems) The present invention, as a means for solving the problems described in 1., provides a first line for carrying in electronic components, and a line for storing electronic components in respective sockets on a board and distributing them to the public. the second line and this first and second line
The electronic component transfer means passed between the two lines was prepared, and the
In a device in which electronic components carried in on a line are transferred by the transfer means to sockets on a second line and carried out, an inlet is provided between the first line and the second line, and a stocker on which electronic components are placed, a detection means for detecting a board having a defective socket among the boards, and detecting the quality of each socket on the board before the electronic components of the first line are transferred; 111 means for receiving a detection signal of a defective socket from the detecting means and outputting a signal to the transferring means for transferring the electronic component scheduled to be transferred to the defective socket to the stocker. The present invention provides a transport device for electronic components.

(Function) In the j-fastest equipment for electronic components mentioned above, the board that has been transported is first inspected to see if it contains a defective socket, and only those boards that are determined to contain a defective socket are inspected for each socket.
- is inspected to detect a defective socket, and when the detection means detects a defective socket, the electronic components scheduled to be transferred to the defective socket are transferred to the defective socket, and the good sockets receive the electronic components as planned. Parts are transferred. In other words, if a board has a defective socket, it is sent out to the next process with only that defective socket empty, and between the loading of electronic components by the first line and the general delivery of electronic components by the second line. The synchronization is also maintained.

(Effects of the Invention) Therefore, according to the present invention, since the electronic component stocker and the detection means and control means for transferring electronic components scheduled to be transferred to the defective socket to the stocker are provided, the defective socket is placed on the board. Even if there is a defective socket, the board can be handled and treated in the same way as a board without a defective socket, without having to remove the electronic components from the defective socket, and
Even if there is a defective socket, the synchronization between the first line and the second line will not be disrupted, making it easy to control the transport of electronic components.

Further, since the detection means detects the quality of each socket only for the board having a defective socket, the frequency of occurrence of defective sockets is extremely low, and the detection processing time can be relatively short.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall configuration of an electronic component transport device. In the figure, 1 is a first line in which a plurality of electronic components (for example, IC flan I packages) 2 are placed on a tray 3 and transported, and 4 is a line in which a plurality of electronic components 2 are placed in each socket 6 of an aging board 5. 1 in the opposite direction to the first line 1
This is the second line for general delivery. And this conveyance device is
Unprocessed (before aging) electronic components 2 and processed electronic components 2, that is, the first line 1 carries the unprocessed electronic components 2 to the exchange station, and the unprocessed electronic components 2 are transferred to the second line 4 which has processed them. The processed electronic component 2 is exchanged with the electronic component 2 and then transported to the next electronic component inspection process. On the other hand, the second line 4 carries the processed electronic components 2 supplied from the aging device to the board loading section 7 to the exchange station, and combines the processed electronic components 2 with the unprocessed electronic components 2 of the first line 1. After replacing the electronic component 2, the unprocessed electronic component 2 is carried out to the substrate transport section 8 to the aging device.

Then, the aging board 5 (i.e. the defective socket 6) in the second line 4 is installed at the replacement station.
detecting means 10 for detecting the aging board 5 having at least one aging board 5 and detecting the quality of the socket 6 on the aging board 5 requiring inspection; and for transferring the electronic component 2 from the first line ↓ to the second line 4. A first transfer means 11, a second transfer means 12 for transferring the electronic component 2 from the second line 4 to the first line 1, and a second transfer means 12 for temporarily loading the electronic component 2 when the socket 6 is defective. A control means 14 for the above-mentioned transfer means 1], , ]2 and the stocker 13 is provided. In this example, the tray 3 and the aging board 5 have electronic components 2 placed in one horizontal row.
The number of trays 3 is 5 in one row, and the aging substrate 5 is 4 in 1 row.

First, as shown in FIG. 2 (a plan view with the lid open), the socket 6 has a lid 17 connected to a main body 15 on which the electronic component 2 is mounted by a hinge 16 so that the lid 17 can be opened and closed. Main body 1
5 is provided with a large number of terminals 18 for electrically connecting the aging board 5 and the electronic component 2, and Mll is a locking portion of the main body 15]
9 is provided. The quality of the socket 6 is detected by the presence or absence of a mark 21 attached to the corner of the top surface of the main body 15 exposed when the lid 17 is opened.
This mark 21 is attached by manually inspecting each socket 6 in advance and pasting a light-reflective aluminum tape on defective sockets 1-6. Further, on an aging board 5 having at least one defective solder hole I/6, a mark 21'' similar to the mark 21 described above is pasted on the corner of the upper surface, as shown in FIG.

The detection means 10 is shown in FIG. 3 (top view) and FIG. 4 (front view).
, and in the second line 4, the previous mark 2
1゛ When an aging board 5 requiring inspection is detected, a mark 21 of the socket body with lid 17 opened for a plurality of sockets 6 on the aging board 5 requiring inspection] 5 is detected.
Whether the socket 6 is good or not is detected before the electronic component 2 is transferred to the first line 1. That is, the detection means 10 is provided between the lid opening device (not shown) of the socket 6 and the second transfer means 12, and the aging board 5 is detected from the support 22 which is erected beside the second line 4.
4 detectors (photoelectric switches) 24 corresponding to the four sockets 6 in one row of the aging board 5 and a mark 21 indicating whether the board contains a defective socket The configuration includes a detector 24' for detecting.

In this case, the bracket 23 is provided with an elongated hole 25 that is perpendicular to the second line 4 and is elongated in the horizontal direction, and each detector 24 and 24' is positioned at a position relative to this elongated hole 25. It is attached in an adjustable manner so that the corner of each socket 6 faces the mark 21' on the board.

The first and second transfer means 11.12 are substantially the same, and their specific structures are shown in FIGS. 5 to 7.

That is, the transfer means 11.12 are arranged in parallel in the transfer direction (direction orthogonal to each line 1.4).
The fourth movable bodies 292 to 29d are provided, and each movable body 29a to
29d are rod-shaped, each having first to fourth cylindrical bodies 30.
It is supported so as to be able to move up and down from a to 30d. The cylindrical bodies 30a to 30d are fixed to first to fourth sliders 32a to 32d that are fitted onto guide bars 31 parallel to the moving direction, and are fixed to first to fourth links 33a to 33d. are connected.

The first to fourth links 33a to 33d are connected in a triangular wave shape by tilting alternately in opposite directions in the moving direction. Second and third cylindrical bodies 30b and 30c are pivotally supported by pins via second and third sliders 32b and 32C, respectively, at the center of the connection points at both ends, and
and the fourth links 33a and 33d, the first and fourth links 33a and 33d
The cylindrical bodies 30a and 30d are pivotally supported by pins via first and fourth sliders 32a and 32d, respectively.

At one end in the moving direction (right side in FIG. 5), the main drive pulley 36 and the lower drive pulley 37 are connected to the vertical support shaft 3.
8 are coaxially supported, and on the other end side 0 is provided with an upper and lower driven boob IJ39.40 corresponding to the upper and lower drive pulleys 36.37, and upper and lower toothed bells 1 to 41.42 are set, respectively. It's being passed around. Large diameter gears 4.3.4 are provided for the drive pulleys 36.37, respectively.
4 and a servo motor 47 via small diameter gears 45 and 46.
．． 48 are linked, and the upper and lower toothed healds, ', 1
．． 42 as shown in FIG. 7 (first slider 32a
and the fourth slider 32d by fasteners 49 and 49.As shown in FIG. It is designed to move up and down together with the rod 52. These movable bodies 292 to 29d and the guide port, door 5
The upper end of the second plate is connected to the L-shaped upper play 1 at 53, and the lower end is connected to the plate 54. And upper plate 5
3 can be movably engaged in the aforementioned moving direction via a cam floor (engaging means) 58 with an L-shaped actuating member 57 driven by a vertical motor 56 on a support base 55. ing. The actuator shaft 57 is connected to a crank 59 connected to the output shaft of the motor 56 via a connecting rod 60, and is fixed to a support plate 6162 at both end positions in the moving direction as shown in FIG. Guide tube 63.
-E is supported so as to be movable downward relative to 63 via Gytro 7-do 64 and 64.

Therefore, the upper plate 5 of each of the movable bodies 29a to 29d
3 is provided with first to fourth inverted-shaped hook pieces 65a to 65d each having a horizontal portion, and the first to fourth hook pieces 65a to 65d are provided to release the engagement between d and the actuating member 57. Operation member 66a~
66d is provided. In other words, each operation part month 6
6a to 66d are provided with a horizontal portion on which each of the above-mentioned latching pieces 65a to 65d is latched over the entire length of the movable distance of each movable body 29a to 29d, and both ends of each can be rotated coaxially. It is fixed to a pair of left and right brackets supported by 67 and 68. As shown in FIG. 6, on the left side of the support stand 55, the first and third operating members 66a,
The actuating rods 7 of the first and third electromagnetic drive means 69a and 69c are respectively attached to the brackets 67 and 67 to which 66C is fixed.
0.70, and the bracket 1-67. with the second and fourth operating members 66b and 66d fixed on the right side of the support stand 55.
67, second and fourth electromagnetic drive means 69b, 69, respectively.
The actuating rods 70, 70 of d are connected.

In this case, each operation member 66a to 66d is placed in a position where the locking piece 65a to 65d is released by the protrusion of the operating door 0, and the locking piece 662 to 65d is moved to a position where the locking piece 662 to 65d is released by the retraction of the operating door 0. Each can be rotated to its latching position.

Each block 67 also has an operating member 66 as shown in FIG.
It is urged by a spring 71 in the rotational direction with a to 66d being the unlatched position.

Further, below the lower plate 54, a sensor bracket 7 is provided.
2 is movable up and down and is supported by a spring 73 biasing it downward. A sensor 74 is provided at the lower end of the sensor bracket 3 72 to check whether the electronic component 2 is correctly inserted into the socket 6 by checking whether or not light passes through it. Whether or not the electronic component 2 has been removed by the suction cup 50 is determined by the presence or absence of fluctuations in the vacuum pressure exerted on the suction cup 50. As shown in FIG. 1 line 1 side)
, the suction cups 50 are placed at narrow intervals so that each suction cup 50 corresponds to the electronic components 2 placed on the tray 3 at narrow intervals;
When it is desired to move to the right as shown by the chain line, the upper and lower servo motors 4 and 7 are activated so that the suction cups 50 are spaced widely so that they correspond to the electronic components 2 placed on the aging board 5 on the second line 4 at wide intervals. The drive is controlled at .48.

Now, when all the movable bodies 29a to 29d are to be operated when the electronic component 2 is transferred from the tray 3 to the aging board 5 by the first transfer means 11, first, each movable body 2
9a to 29d are moved to the tray side by the servo motor 4.7.4.8, and the locking piece 65a is moved by rotating the operation part +4'66a to 66d.
The hook +h of ~65d is removed, and the operating part +457 is lowered by the operation of the motor 5G. Therefore, each movable body 29a
~29d descends while engaging with the actuating member 57 via the camf I core 58. As a result, after the sensor blade 72 comes into contact with the first helley 3, the suction cup 50 further descends and comes into contact with the electronic component 2.

Then, the electronic component 2 is attracted to the suction cup 50 by vacuuming, and the actuating member 57 is raised.

When the electronic component 2 is picked up in this way, each movable body 29 is operated by the upper and lower servo motors 17.48.
a to 29d are moved onto the aging base #5.5 by increasing the distance between them, and the electronic component 2 is lowered by lowering the actuating member 57, that is, the movable bodies 29a to 29d by the operation of the motor 56. Then, by releasing the vacuum of the suction cup 50, it is placed on the socket l-6 of the aging board 5. After this placement, the actuating member 5 is operated by the motor 56.
7 to Ueno, the servo motors 4, 7, and 48 are reversely rotated, and the movable bodies 29a to 29d are returned to the top of the tray 3.

In addition, for example, as shown in FIG. 7, the first to third operating members 6
6a to 66c are the latching positions, and the fourth operation part +A'66d
only is the latching release position. In this state, the actuating member 57
When the fourth movable body 29d is lowered, the eye of the fourth movable body 29d engages the actuating member 5.
7, the remaining first to third movable bodies 29a to 29c are engaged with the locking pieces 65a to 65a.
By engaging the operating portions 65C with the operating portions 66a to 66C, they remain in the second raised position and are disengaged from the actuating member 57. That is, in this case, only the fourth movable body 29d is selected and operated.

As described above, each of the movable bodies 29a to 29d is operated by appropriately selecting jx by operating the corresponding operating portions 66a to 66d, and is operated to load four pieces in one row from the tray 3, which has five pieces in one line. The electronic components 2 are sequentially transferred to the aging board 5 having a mounting section. Aging board 5 to tray 3-1
The electronic component 2 can be transferred by the second transfer means 12 in the reverse manner to the above-mentioned mode. Stodska 1
If the electronic component 2 is transferred to
This is done by stopping the transfer means ↓1 and operating the selected movable body.

The specific structure of the stocker 13 is shown in FIG. 8 (plan view) and FIG. 9 (front view).

Of course, this stocker 13 is equipped with a temporary stand 75 on which a plurality of electronic components 2 can be placed. Then, this temporary stand 75 is placed against the first guide member 76.
and the second line 1.4 so as to be movable in the conveying direction, and is coupled to a toothed feed belt 77. In this case, the guide member 76 is fixed to a support plate 79 fixed to a support column 78, and the feed heald 77 is stretched in the transport direction by driving and driven pulleys 80 and 81 supported by the support plate 79. In addition, the driving pulley 80 includes transmission boos IJ82, 83 and a transmission heald 84.
A drive motor 85 is linked to the driven pulley 81, and a rotating index plate 89 is linked to the driven pulley 81 via an interlocking pulley 8687 and an interlocking heald 88.

” The temporary storage stand 75 is placed in one pitch on the rotary indexing plate 89 (
A notch 89a is provided to determine the rotation angle when the electronic component 2 is moved.
is provided. That is, this index detector 90,
Each electronic component mounting portion 75a of the notch 89a is successively positioned directly below the transfer path of the first transfer means 11. The support plate 79 also includes a sensor 91 for detecting the forward end and the backward end of the temporary stand 75, respectively.
92 is provided. In this case, when the forward end sensor 91 detects the temporary storage table 75, it outputs a full signal for the temporary storage table 75, and stops the operation of the conveying device.

The control means 14 controls the operation of the first transfer means 11, as shown in FIG. Transfer control unit 10
4. Second transfer control unit 10 that controls the operation of the second transfer means
5 and a stocker control section 106 that controls the operation of the stocker 13.

Detection signal input section 1.0 ] is connected to the aging board 5 when the second
Each time the line 4 advances by one pitch corresponding to the mounting interval of the sockets 6, a signal from the detection means 10 is input manually. The quality determination unit 102 determines the quality of each socket 6 in one row of the aging board 5 based on the detection signal taken in by the detection signal input unit 102, and writes it into the data table in the section 1a 103.

That is, as shown in FIG. 11, the storage unit 103 stores first to fifth data tables 107a to 107a corresponding to the number of aging boards 5 (five in this example) in the exchange station.
07e, the data tables 107a to 107e, and the first to fifth positions 1083 to 1 of the aging board 5.
It also includes a board position table 109 in which the correspondence with 08e is written. Each of the data tables 107a to 107e has seven writing sections corresponding to the number of columns for writing the quality of each socket 6 in one column of the aging board 5. Substrate position table ], 09 For example, where aging group 1 to 5 moves between each position (every time a new aging board 5 is inserted), what are the positions] 08a to 108e and data tables 107a to 107e? At the same time, the writing section that writes the text is also being written.

The first transfer control unit 104 searches the storage unit 103 for the quality of the socket 6 of the aging board 5 to which the electronic component 2 is to be transferred, and if it is good, issues a transfer command to the socket 6.
Further, when the product is defective, a transfer command for the stocker 13 is given to the first transfer means 11. In this case, the quality of the socket 6 of the target aging board 5 is determined by the board position table 1.
09 from the data table specified for the second aging board 5.

2nd transfer control wholesaler section] 05, the storage section 103 stores the quality of the sockets 1-6 of the aging board 5 from which the electronic component 2 is to be extracted.
If it is good, a sampling command is given to the second transfer means 12, and if it is defective, a sampling stop command is given to the second transfer means 12. In this case as well, the quality of the socket 6 of the target aging board 5 is given from the data table specified for the aging board 5 in the board position table 109.

The stocker control unit 106 receives a signal issued from the first transfer control unit 104 when the electronic component 2 is transferred to the stocker 13, and gives an operation command to the drive motor 85. In the case of this example, the temporary storage stand 75 of the stocker 13 has two rows of electronic component placement sections 75a, so the electronic components 2 can be placed in two rows.
Each time an individual is placed, a two-state operation command is given.

FIG. 12 shows the control flow of the control means 14.

First, a pitch feed command for the aging base fabric 5 in the second line 4 is issued to this line (Sl).

When the above-mentioned pitch feeding is performed, it is determined whether the socket is in the first row of one board, and if it is YE or S, first, it is determined whether the board has a long socket or not using the signal from the detector 24 of the detection means 10. Judgment (SIO). Defective 1 For the board with no good socket 1, write ``Good'' in the data table 09 (Sl5). On the other hand, if the board has a defective socket I, write "No" (S11). Quality determination unit 102
First, the data table 109 is looked at, and only when the signal is negative, the signal from the detection means 10 is inputted to determine whether the Sogeno I-6 is good or bad, and the data is stored in the data table. If the above writing has not been completed for one aging board 5 (in this example, it is completed after 7 writings), the process returns to step S1, and if it has been completed, the board position table 109 is rewritten ( S8 S9).

In the first transfer control unit 104, when the pitch feeding is performed, the data table 10 corresponding to the aging substrate 5 is
Look at 9 and see if there is a defective part 1-. (S1
6) If there are no defective sockets, immediately issue a transfer command to the socket. (S23) When there is a defective socket, the data table 107 is searched for the socket 1 to example. (S17) Then, when the corresponding socket 6 is good for the first transfer means 11, (318) Give a command to transfer the electronic component to the socket 62, and if it is defective, send it to the socket 62.
7 gives a transfer command to 13 (Sl, 9).

If the above-mentioned socket 16 or socket 13 cannot be transferred, an error signal is issued, and when one row of sockets 64 is stuck and the transfer control is completed, the process proceeds to the next step S1.5. (S33-534).

Furthermore, when the stocker control unit 106 has been transferred to the stocker 13 twice, it gives a pitch feed command for the temporary storage table 75 to the drive morph 85 (S2), 522).
.

In the second transfer control unit 105, when pitch feeding of the aging board 5 is performed (S1, S2), the data table 109 corresponding to the aging board 5 is checked to see if there is a defective socket. (326) If there is no defective socket 1, immediately issue a sampling command and confirm removal. (S31.
．． (S27)
).

When the corresponding socket 6 is defective, a sampling command is given to the second transfer means 12, and removal is confirmed.
S29). When the extraction control for one row of sockets 6 is completed, the process advances to steps 333 and 34. In step S33, the transfer control of one row of sockets 6 in the [transfer system 91] first section 104 and the extraction control of one row of sockets 6 in the second transfer control section 105 are both completed. Make sure that Then, in step 334, if the conveyance is not completed, step Sl (pinch feeding of the aging substrate 5)
make the transition to .

Note that the electronic components 2 temporarily placed in the stocker 7 13 are finally transferred to the good socket 6 of the aging board 5 all at once.

Therefore, in the case of this embodiment, if there is a defective socket 6 on the aging board 5, the electronic component 2 is not removed from the socket 1-6, and the electronic component 2 is transferred to the defective socket 1-6. is not carried out either. Therefore, the aging board 5 will be used for aging in the same way as the non-defective aging board 5, leaving out the defective socket 716 and using only the remaining good sockets 6.

In addition, since the electronic components 2 scheduled to be transferred to the defective sorter 6 are transferred to the stocker 13, the number of unprocessed electronic components removed from the tray 3 of the first line 1 and the number of unprocessed electronic components
The number of processed electronic parts picked up from the aging board 5 is always balanced, and both lines 1 and 4 can be synchronized without changing the preset line speed.

2 is a plan view showing the socket with the lid open, FIG. 3 is a plan view showing the detection means in a partial plane, and FIG. 4 is a front view of the same means. Figure 5 is a front view of the transfer means, Figure 6 is a plan view partially showing the same in section, and Figure 7 is a front view of the transfer means.
The figure is a side view partially showing the means, FIG. 8 is a plan view of the stocker, FIG. 9 is a front view of the stocker, FIG. 10 is a block diagram showing the configuration of the control means, and FIG. 11 is an aging FIG. 12 is an explanatory diagram showing the relationship between the substrate, the data table, and the substrate position table, and FIG. 12 is a control flowchart.

1...First line, 2...Electronic parts,
4...Second line, 5...Aging board, 6...Sokeno I, 10...Detection means, 11...No. 1 Transfer means, 13...
... Stocker, 14... Control means.

Claims (1)

[Claims] (1) A first line for carrying in electronic components, a second line for carrying out electronic components in each socket on a board, and an electronic component transfer means passed between the first and second lines. , in which the electronic components carried in on the first line are transferred by the above-mentioned transfer means to the sockets on the second line and carried out, and the above-mentioned a stocker on which electronic components are placed using a transfer means;
A detection means for detecting a board having a defective socket among the above-mentioned boards and detecting the quality of each socket on the board before the electronic components of the first line are transferred, and a socket defect detection signal from the detection means. and control means for outputting a signal to the transfer means to transfer the electronic component scheduled to be transferred to the defective socket to the stocker.