JP2789760B2 - Automatic insertion of electronic components - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic electronic component for forming a predetermined electric circuit by automatically incorporating various electronic components with leads into a component mounting board such as a printed board. It concerns the insertion method.

2. Description of the Related Art Conventionally, a predetermined electronic component insertion hole provided on a printed circuit board or the like has been used to automatically incorporate various electronic components with lead wires into a component mounting board such as a printed circuit board to form a predetermined electric circuit. Insert the lead wire of the specified electronic component into
2. Description of the Related Art An automatic electronic component insertion device that automatically performs a series of operations of cutting unnecessary lead wires of an electronic component and clinching the lead wire to prevent the electronic component from falling off a printed circuit board is used.

FIG. 5 is a flow chart showing the insertion operation of the conventional electronic component automatic insertion apparatus, and FIG. 4 is a diagram simply showing the state of insertion of the lead wire of the electronic component into the printed circuit board in order. FIG. 4 (a) shows a state in which the electronic component has been normally mounted on the printed board, and FIG. 4 (b) shows a state in which the electronic component is held by a guide pin passing through the insertion hole from the lower surface of the printed board. FIG. 4 (c) shows a state in which the lead wire is inserted into the printed circuit board using the guide pins, and FIG. 4 (d) shows a state in which the extra part of the lead wire of the electronic component protruding from the lower surface of the printed circuit board is cut. FIG. 4 (e) shows a state in which the lead wires of the electronic component protruding from the lower surface of the printed circuit board are clinched in order to prevent the electronic component from falling off the printed circuit board. In FIG. 4, reference numeral 21 denotes a printed board on which electronic components are mounted, 22 denotes a hole for inserting an electronic component provided on the printed board 21, 23 denotes an electronic component to be inserted into the printed board 21, and 24 denotes an electronic component. Lead wire, 26 is electronic component 23
Guide pins used when inserting the
27 is a cutter for cutting and clinching the lead wire 24.

In such an electronic component automatic insertion device, as shown in FIG. 4, a series of operations for automatically inserting the electronic component 23 into the printed circuit board 21 are as follows.
The printed circuit board 21 is positioned so that a predetermined electronic component 23 (usually fixed to a tape) to be mounted on the printed circuit board 21 is supplied and taken out. Insert the lead wire 24 into 22 and cut off the excess part of the lead wire 24
24 to confirm that the insertion into each of the component insertion holes 22 has been securely performed, and to prevent the electronic components 23 mounted on the printed circuit board 21 from falling off the printed circuit board 21, Clinch to complete a series of insertion operations.

However, in such an electronic component automatic insertion device, the lead wire 24 of the electronic component 23 to be inserted is deformed or the fixing state of the electronic component 23 to the tape is disturbed. For example, the insertion of the lead wire 24 into the electronic component insertion hole 22 on the printed circuit board 21 may fail.

Conventionally, when such an insertion error occurs, the automatic insertion device for the electronic component is automatically stopped, and the automatic insertion device for the electronic component issues an alarm to intervene, and the operator intervenes, and the operator manually recovers the insertion error. Had gone.

However, in the manual recovery by the intervention of the operator, the automatic insertion device for electronic components remains stopped until the operator comes after the alarm is issued.

For the electronic component 23 where the insertion error has occurred, the operator checks the status of the insertion error, examines the recovery method, gives a recovery command to the electronic component automatic insertion device, executes the recovery, and confirms the success of the recovery. It takes a lot of time because many human judgments and interventions are required to confirm and instruct the electronic component automatic insertion device to continue the remaining insertion operation and restart the insertion operation.

In the meantime, in a system in which another automatic insertion device for electronic components is connected before and after, unless a substrate stocker is provided between the automatic insertion devices for mutual electronic components, etc.
When one electronic component automatic insertion device stops due to an insertion error or the like, the machines connected before and after the electronic component automatic insertion device must also be stopped.

For these reasons, the operating efficiency of the machine is greatly reduced.

For this reason, while the automation of the process has been promoted, measures for suppressing the occurrence of such insertion errors have been advanced, but they have not succeeded in completely eliminating the occurrence.

In view of such a problem, the present invention adds a function of judging whether or not automatic recovery from an insertion error is possible to an automatic insertion device for electronic components. When possible, automatic recovery of insertion errors can be performed to greatly reduce the stop time of the automatic insertion device for electronic components and the frequency of operator intervention, thereby realizing automation and labor saving. To provide.

Means for Solving the Problems In order to solve this problem, in the automatic electronic component insertion method of the present invention, a visual recognition device is added, and when an insertion error occurs, a print in which an insertion error has occurred by the visual recognition device is provided. The component insertion hole on the board is recognized, it is determined whether or not a lead wire can be inserted into the component insertion hole, and recovery of an insertion error can be automatically executed.

Operation The operation in this method is as follows.

In the method for automatically inserting an electronic component according to the present invention, when the insertion error occurs, the size and shape of the component insertion hole on the printed circuit board on which the insertion error has occurred are recognized by the visual recognition device. If the insertion is possible, the recovery is automatically executed. If the recovery is successful, the subsequent insertion operation is continued.

On the other hand, if the size and shape of the component insertion hole are such that the lead wire cannot be inserted because the lead wire or the like due to the insertion error remains in the component insertion hole, the automatic insertion of the electronic component automatic insertion device alone is performed. It is determined that recovery cannot be performed, and an alarm is issued to request the intervention of the operator as usual, and the machine is stopped.

As described above, when an insertion error occurs, the insertion device itself determines whether or not recovery can be performed by the automatic insertion device for the electronic component alone, thereby minimizing the time required for recovery when the insertion error occurs and intervening by the operator. Can be minimized, and the operating efficiency of the electronic component automatic insertion device can be greatly increased.

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

FIG. 1 shows an automatic insertion device for electronic components according to an embodiment of the present invention.

In FIG. 1, 1 is a printed board on which electronic components are mounted, 2 is a hole for inserting lead wires of the electronic components provided on the printed board 1, 3 is a visual recognition device, 4 is a control unit of the electronic component insertion device. Reference numeral 5 is a recognition camera, 6 is a light source for hole recognition, and 7 is a monitor display. FIG. 3 is a flowchart showing a method for automatically inserting an electronic component according to an embodiment of the present invention.

In the electronic component automatic insertion device configured as described above, the electronic component is mounted in a state shown in FIG. 4A in a normal insertion operation.

However, as described above, when the lead wire of the electronic component to be inserted is deformed, or when the fixing state of the lead wire of the electronic component to the tape is disturbed, the holding of the electronic component for insertion is performed. Cannot be performed completely, and insertion of the lead wire into the electronic component insertion hole 2 on the printed circuit board 1 sometimes fails. At this time, most of the second
As shown in FIG. 2D, the lead wire 10 of the electronic component 9 is not completely mounted on the two guide pins 8 and before the lead wire 10 is inserted into the component insertion hole 2, as shown in FIG. Thus, the electronic component 9 is flipped off by the push rod 11. For this reason,
A series of insertion operations ends as an insertion error without the lead wire 10 being inserted into the component insertion hole 2 on the printed circuit board 1 where the electronic component 9 is to be originally inserted. In the case of such an insertion error, since the lead wire 10 remains in the component insertion hole 2 without being inserted at all,
Since it is possible to insert the same new part as the electronic component 9 in which the insertion error has occurred again into the component insertion hole 2 in which the insertion error has occurred, the state of the component insertion hole 2 in which the insertion error has occurred Is imaged by the recognition camera 5, the size and shape of the component insertion hole 2 are recognized by the visual recognition device 3, and the lead wire 10 is inserted into the component insertion hole 2 as shown in the image shown in FIG. Perform recovery automatically if it is possible to do so. If the recovery is successful, the subsequent insertion operation is continued.

On the other hand, as shown in FIG. 2A, the lead wire 10 due to an insertion error remains in the component insertion hole 2 or the like.
If the size and shape of the component insertion hole 2 are such that the lead wire 10 cannot be inserted as shown in FIG. 2 (b), execution of the automatic recovery by the electronic component automatic insertion device alone is performed. Is determined to be impossible, and an alarm is issued to request the intervention of the operator as usual, and the machine is stopped.

As described above, according to the present invention, when an insertion error of an electronic component occurs, the component insertion hole in which the insertion error has occurred is recognized and determined by a visual recognition device, so that the electronic component automatic insertion device alone can be used. Automatic recovery can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic component insertion device according to an embodiment of the present invention, FIGS. 2 (a) to 2 (e) are explanatory views showing an electronic component insertion state in the present invention, and FIG. 4 (a) to 4 (e) are explanatory diagrams showing a component insertion operation in a conventional electronic component automatic insertion apparatus, and FIG. 5 is a conventional electronic component insertion method. It is a flowchart about the insertion operation of the component insertion method. DESCRIPTION OF SYMBOLS 1 ... Printed circuit board, 2 ... Component insertion hole, 3 ... Visual recognition device, 5 ... Recognition camera, 6 ... Light source, 7 ... Monitor display, 9 ... Electronic components, 10 ... Electronic components Lead wire, 8 Insert guide pin.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H05K 13/04 H05K 13/08

Claims (1)

(57) [Claims] 1. A table section which holds a substrate having a component insertion hole for inserting a lead wire of an electronic component and is movable in a plane, an insertion head for inserting the lead wire of the electronic component into the substrate, A recognition camera for photographing the component insertion hole of the board, a visual recognition device connected to the recognition camera and processing image information of the component insertion hole included in an image from the recognition camera; A dimension and shape that can be provided with a control unit for controlling the operation of the head unit and the like, and when the component insertion error occurs, the visual recognition device recognizes the component insertion hole where the component insertion error has occurred, and the lead wire of the electronic component can be inserted. If the hole is recognized, it is judged that the automatic recovery by the automatic insertion device of the electronic component alone is possible and the recovery is automatically executed. Continued insertion, whereas, automatic insertion method of the electronic component to stop the machine as an automatic unrecoverable insertion error if the hole size and shape enough to insert the lead wire of the component can not be recognized.