JPH08172296A - Electronic-component automatic loading apparatus and loading method of electronic component - Google Patents

Abstract

PURPOSE: To prevent the operating ratio of an apparatus from being lowered when a suction abnormality is generated by a method wherein a plurality of groups of component feed cassettes in the same arrangement are installed. CONSTITUTION: Component feed cassettes 10 which feed all kinds of various chip components 3 to be loaded on one prescribed printed-circuit board 7 mounted on an X-Y table 6 are placed on movement tables 11A, 11B. Arrangements of the component feed cassettes 10 on the movement tables 11A, 11B are respectively identical. At this time, when a suction abnormality is detected in any of the component feed cassettes 10, it is stopped to take out the components from the component feed cassette 10 in which the suction abnormality has been detected, and a loading operation is continued on the basis of loading data. The movement of feed bases 11A, 11B is controlled in such a way that, after the component in the last order has been taken out, components are taken out from a cassette, arranged in another group, which feeds components of the same kind as that of the component feed cassette 10 which has stopped taking out the components and that the components are loaded on the board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic electronic component mounting for picking up electronic components from a plurality of component supply cassettes arranged on a moving supply table in accordance with data indicating the mounting order and picking them up with a nozzle and mounting them on a printed circuit board. The present invention relates to a device and a mounting method for electronic components.

[0002]

2. Description of the Related Art A device for automatically mounting electronic components of this kind is disclosed in Japanese Patent Laid-Open No.
No. 167286, a plurality of component supply cassettes to which electronic components are supplied are mounted on a supply table that moves in the same movement path, and one of the supply tables is a position for taking out a component of an ejection nozzle. Then, the desired component supply cassette is moved so as to be stopped, and the ejection nozzle takes out the component from the cassette and mounts it at a predetermined position on the printed circuit board. In this type of apparatus that moves a plurality of supply bases to take out components, when the same type of component supply cassette is arranged on the plurality of supply bases and one supply base is moved to supply components, When a component supply cassette causes an adsorption error, another supply base is moved to take out a component from the cassette mounted on another supply base that supplies the same type of component as the cassette and supplies the component. After that, the replaced supply table was moved according to the data indicating the mounting order to supply the components.

When a suction abnormality occurs even in the replaced supply table, it is repeated to return to the first supply table and supply the components in the mounting order.

[0004]

However, in the above-mentioned prior art, when the suction abnormality of the plurality of component supply cassettes occurs in the first supply table, the suction abnormality of the cassette in which the suction abnormality first occurs is detected. At that time, since the operation of replacing the supply table that supplies the components from the cassette of the other supply table is performed, it is not known that the other cassette with the suction abnormality of the first supply table has the suction abnormality. It is only for the first cassette that has an abnormal suction that the parts are replenished while the parts are being sucked, and the parts are taken out from the first supply table again. In this case, another cassette has a suction abnormality, the supply table is replaced, and the supply table is moved for the number of times when the suction failure occurs in the cassette. Since it takes time to move for this replacement, it has been a hindrance to increasing the operation rate of component mounting.

Therefore, an object of the present invention is to provide a plurality of groups having the same arrangement of component supply cassettes so as not to lower the operation rate of the apparatus when a suction abnormality occurs.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention provides a group of component supply cassettes arranged on a supply table having a plurality of identical arrays and each array moving within a group. In an electronic component automatic mounting apparatus that picks up electronic components from the cassette according to the data indicating the mounting sequence, picks them up with a nozzle, and mounts them on a printed circuit board, when a suction abnormality of the cassette is detected, the component supply cassette in which the suction abnormality is detected Cassettes arranged in another group that supplies the same component type as the component supply cassette whose component removal was stopped after the last sequence of components was removed after the removal of the components from the A control means is provided for controlling the movement of the supply table so that the parts can be taken out and mounted on the substrate.

Further, according to the present invention, groups of the same arrangement of component supply cassettes for supplying electronic components are arranged on a plurality of supply bases that reciprocate on the same movement path, and the component supply on one supply base is performed. In the electronic component automatic mounting device that picks up electronic components from the cassette according to the data indicating the mounting order in the cassette group and takes them out with the nozzles and mounts them on the printed circuit board, if the suction abnormality of the cassette is detected, the suction abnormality is detected. The other supply base that supplies the same component type as the component supply cassette whose component removal has been stopped from the component supply cassette that has been stopped and component mounting has been stopped based on the mounting data The control means is provided to control the movement of the supply table so that the components are taken out from the cassettes arranged in the above and mounted on the substrate.

Further, according to the present invention, there is a plurality of identical arrays, and each array is moved according to the data indicating the mounting order in one group of a plurality of component supply cassettes arranged on the moving table. In a method of mounting electronic components, in which electronic components are respectively taken out from a cassette and picked up by a nozzle and mounted on a printed circuit board, a detection step of detecting a suction abnormality of the cassette and a component from a component supply cassette in which the suction abnormality is detected in the detection step. Arrangement in another group that supplies the same component type as the component supply cassette whose component removal has been stopped after the removal of the last-ordered component, and a determination step of determining to stop the removal and continue mounting based on the mounting data. A component mounting recovery step is provided in which components are taken out from the cassette and mounted on the substrate.

[0009]

According to the structure of claim 1, when the suction abnormality of the component supply cassette is detected, the control means stops the removal of the component from the component supply cassette in which the suction abnormality is detected,
Continues mounting based on the mounting data and supplies the same component type as the component supply cassette that stopped component removal after the last component was removed from the cassette arranged in another group and attaches it to the board. Control the movement of the supply table.

According to the second aspect of the present invention, when the suction abnormality of the component supply cassette is detected, the control means stops the removal of the component from the component supply cassette in which the suction abnormality is detected, and mounts it based on the mounting data. After removing the last component in the order, remove the component from the cassette arranged on another supply table that supplies the same component type as the component supply cassette that stopped the component removal, and move the supply table to mount it on the board. Control.

According to the third aspect of the present invention, when the suction abnormality of the component supply cassette is detected in the detection step, the component is taken out from the cassette in which the abnormality is detected and the mounting is continued based on the mounting data. Judgment process judges, parts are removed from cassettes arranged in another group that supplies the same kind of parts as the cassette in which parts are not mounted after the last part in the recovery process is taken out and mounted on the board Let

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 2, reference numeral 1 is a chip-shaped electronic component 3.
This is an electronic component automatic mounting device for mounting (hereinafter referred to as chip component) on a printed circuit board 7, and a suction head 4 provided on the lower end periphery of a rotary table 2 which is driven by a drive motor (not shown) and rotates intermittently. In section I, a plurality of suction nozzles 5 provided on the head 4 suck and pick up chip components 3 supplied from a component supply cassette 10 described later.

Reference numeral 6 denotes an XY table, which is moved in the horizontal direction (XY direction) by driving the X-axis motor 8 and the Y-axis motor 9 at the mounting station II reached by the suction head 4 by the rotation of the rotary table 2. Then, the chip component 3 is mounted at a predetermined position on the printed circuit board 7 placed on the table 6.

Reference numeral 10 denotes a component supply cassette which is arranged on the moving table 11A or the moving table 11B in the moving direction of the tables 11A and 11B.
By the movement of A and 11B, the desired cassette 10 is moved and positioned at the component taking-out position of the suction nozzle 5 of the suction station I.

Reference numeral 13 denotes a recognition device for recognizing the attitude and position shift of the chip component 3 sucked by the suction nozzle 5.
Reference numeral 4 denotes a head rotation device that rotates the head 4 to bring the chip component 3 into a predetermined rotation angle position.

A mechanism for driving the movement of the moving tables 11A and 11B will be described with reference to FIGS.

In the moving tables 11A and 11B, the driving unit 15 is provided with a connecting lever 16 rotatably mounted on the unit 15 driven by a cylinder 17 to move the moving tables 11A and 11B.
They are connected by being fitted between a pair of rollers 18 provided on the lower surfaces of A and 11B, and are movable along the guide rails 20. The drive unit 15 is movable along a guide rail 21 provided in parallel with the guide rail 20, and the bearing unit 2 attached to the unit 15
In FIG. 2, the nut 23 is rotated by the drive motors 24A and 24B via the belt 25, and the nut 23 is fitted to the ball screw shaft 26 that does not rotate, so that the nut 23 moves along the ball screw shaft 26. By doing so, the unit 15 moves. Therefore, the moving tables 11A and 11B connected to the drive unit 15 can be moved.

The component supply cassette 10 has a mounting pin 28 projecting from the lower surface of the cassette 10 fitted into a mounting hole 28 formed on the moving tables 11A and 11B, and a lock lever 30 is attached to the tables 11A and 11B. It is fixed on the tables 11A and 11B by engaging with a lock plate 31 protruding from the table. Reference numeral 32 is a tape reel wound around a component storage tape and attached to the rear of the component supply cassette 10. The tape fed from the tape reel 32 is intermittently moved leftward in FIG. 3 by an intermittent feed mechanism (not shown). The chip components 3 are fed one by one at each feeding operation to the component feeding position where the chipping nozzle 5 can be taken out by the suction nozzle 5.

X is displayed on the moving tables 11A and 11B, respectively.
A component supply cassette 10 for supplying all kinds of various chip components 3 mounted on a predetermined one printed board 7 placed on the Y table 6 is mounted, and normally one supply cassette 10 is one. In order to supply different types of chip components 3, it is necessary to mount the same number of types of cassettes 10 to be mounted on the substrate 7. That is, the arrangements of the component supply cassettes 10 on the moving tables 11A and 11B are the same.

Reference numeral 35 is a component detection device for detecting whether or not a component is attracted to the suction nozzle 5.

The control block of this embodiment will be described with reference to FIG.

Reference numeral 38 denotes a CPU as a control means, and R
Based on the data stored in the AM 39, a given operation related to component mounting of the electronic component automatic mounting apparatus 1 is controlled according to a program (including the one in the flowchart of FIG. 1) stored in the ROM 40. A drive circuit 42 for driving the drive motors 24A and 24B is connected to the CPU 38 via an interface 41.

The RAM 39 stores NC data corresponding to each type of the board 7, and the NC data is stored in the chip component 3 for each step number indicating the component mounting sequence as shown in FIG.
The X data, the Y data, and the θ data indicating the mounting coordinate position of No. 3, and the reel number indicating the position where the component supply cassette 10 mounting the chip component 3 to be mounted are mounted are stored. The θ data is data indicating the rotation angle position described above.

Further, the RAM 39 is supposed to suction the component 3 from the step number of the NC data in which the suction of the component 3 could not be performed when the suction abnormality has occurred and the reel number in which the suction abnormality has occurred. An unadsorbed step number storage area for storing all subsequent step numbers in the data is provided. The suction abnormality may be a condition where the component 3 cannot be taken out from the cassette 10 due to a component shortage or some abnormality. Further, the RAM 39 is provided with a use table memory indicating which of the movement tables 11A and 11B is currently used. That is, it indicates which of the drive motors 24A and 24B is to be used. When "1" is stored, the motor 24A is used.
If "2" is stored, the motor 24B is driven to pick up the component from the component supply cassette 10 having the corresponding reel number in the corresponding NC data.

The reel numbers are the moving tables 11A and 11B.
This shows the position where the component supply cassette 10 of No. 1 is attached, and in the case of the present embodiment, it is allocated in order from the left side of the moving table 11A as "NO. 1""NO.2" ... Since 60 component supply cassettes 10 (in the narrowest cassette 10) can be attached, the moving table 11A ends with "NO.60", and the moving table 11B ends with "NO.61". N
O. Up to 120 ”are allocated.

Both of the moving tables 11A, 11 described above
The correspondence of B is NO. No. 1 for NO. 61 is NO.
No. 2 for NO. The cassette 10 for supplying the components 3 of the same component type in order corresponding to 62 is attached, and the reel number of the NC data is the table 11A.
The numbers 1 to 60 are stored corresponding to
When "2" is stored in the use table memory, the CPU 38 controls the movement of the table 11B by selecting the corresponding reel number of the movement table 11B.

Adsorption head 4 next to the mounting station II
Is the station that starts the sequence of the mounting operation, and when the suction head 4 is stopped here, the step number of the NC data that the head 4 should perform the suction and mounting operation is assigned. Then, various operations for the step number will be performed in the stations to be moved thereafter. The station that starts this sequence (hereinafter the sequence start station
Is called. ) Is the mounting station I in this embodiment.
It also serves as a station for discharging the component 3 not mounted by I in a discharge box (not shown). Further, after the start station of this sequence, the preparation operation for sucking the component 3 is performed from the station where the suction head 4 moves, and in the present embodiment, the component that suctions the nozzle 5 in the next station. The head 4 is rotated by a head rotation mechanism (not shown) in order to make selections according to the three types.

The operation will be described below with the above configuration.

First, when the automatic operation of the electronic component automatic mounting apparatus 1 is started by the operation of the operation unit (not shown), the suction and mounting operation of the component 3 is performed according to the NC data shown in FIG. When the power is turned on, the value of the use table memory stored in the RAM 39 is set to "1".

That is, the CPU 38 reads each data of the step number 1 of the NC data of FIG. 6 which is the NC data suitable for the type of board to be produced, which is stored in the RAM 39, and the components are supplied from the component supply cassette 10 of the reel number 1. It is judged that the adsorption of 3 should be performed.

Next, since the used table memory is "1", the moving table 11A moves to move the cassette 10 of reel number 1 to the component take-out position and stop it. At this time, the moving table 11B is in a standby state at the standby position indicated by the two-dot chain line on the right side of FIG.

Next, the mounting head 4 stopped at the suction station I is lowered by the intermittent rotation of the rotary table 2 and the suction nozzle 5 sucks and takes out the component 3 fed by the cassette 10 fed by the tape. .

Next, the head 4 holding the component 3 taken out from the cassette 10 of reel number 1 stops at the next stop position due to the intermittent rotation of the rotary table 2, and at this position the component detecting device 35 causes the nozzle It is detected whether or not the component 3 is attached to the component 5. When the presence of a component is detected, the rotary table 2 is rotated next time to stop at the stop position provided with the recognition device 13, and the displacement of the component 3 with respect to the nozzle 5 is recognized by the device 13. Correction is performed by the head turning device 14, and the device 14 performs the angle swing so that the component 3 is further positioned at the angular position indicated by the θ data of the NC data of FIG.

Next, in the mounting station II, the XY table 6 corrects the positional deviation recognized by the recognition device 13, and the board 7 is placed at the position indicated by the mounting position data of the NC data.
Move to position.

Next, with respect to step number 2 as well, the reel number 2 is read by the CPU 38, and the motor 24A is driven so that the moving table 11A stops the component supply cassette 10 at the reel number position at the component take-out position.

Next, the component 3 is similarly sucked and the component 3 is mounted on the substrate 7 in the same manner as in the case of step number 1.

In this way, the components 3 up to the last step number N (denoted by E) of the NC data are picked up and mounted on the substrate 7, and then the substrate 7 is moved to the XY table 6. The board 7 is ejected from above, a new substrate 7 is placed on the XY table 6, and the component 3 from step number 1 of the NC data is picked up and mounted in the same manner. According to the flowchart of FIG. 1, it is determined that the suction abnormality has not occurred, because the step number is not stored in the non-suction step number storage area, the used table memory remains “1”, and the part 3 from the movement table 11A is stored. Will continue to be supplied.

Next, it is assumed that a plurality of cassettes 10 out of the cassettes 10 mounted on the moving table 11A in this way, for example, have mounted the components 3 on one substrate 7 and then have run out of components at the same time. . For example, assume that the cassettes of reel number 3 and reel number 10 are out of parts.

Next, the parts 3 are sequentially taken out from the step number 1, and the parts 3 are not picked up by the suction nozzle 5 which has taken out the parts from the cassette 10 of the reel number 3 in the step number 3. The detection device 35 detects the absence of the component 3 after the next intermittent rotation of the rotary table 2.

The CPU 38 again returns to the part 3 of step number 3
Control to take out.

That is, the command for re-taking of step number 3 is stopped at the start station of the sequence when the component detection device 35 detects a pickup error (no component 3) as shown in FIG. It is performed by being assigned to the suction head 4. This operation is called automatic recovery as shown in FIG.

Therefore, the step number has already been assigned to the suction head 4 which has stopped from the start station of the sequence to the suction station I when the suction error is detected, and the assigned step. The operation based on the number is performed in each station, and the part 3 having the assigned step number is attached to the suction station I.
Is absorbed by. Then, a suction error is detected, the suction head to which the step number is assigned again reaches the suction station I, and the suction nozzle 5 causes the cassette 1 of the reel number 3 to be set.
Moving table 1 so that part 3 can be taken out from 0
1A is moved, and the component 3 having the step number is re-sucked.

At this time as well, when the detection device 35 detects the absence, the step number is again assigned to the start station of the sequence and the take-out operation from the reel number 3 is performed. When it is detected that the step number is 1, that is, the same cassette 10 is not used three times, the CPU 38 determines that the suction is abnormal. The number of times of non-detection for this determination can be set to an arbitrary value, and it may be determined that the suction is abnormal by the detection of one non-existence.

Next, based on the determination of the occurrence of the suction abnormality, the CPU 38 stores step number 3 in the non-suction step number storage area (storage of the target step of FIG. 7) as shown in the flowchart of FIG. Number 3
Reel number 3 where the suction error occurred in the subsequent step numbers
All the step numbers from which the part 3 is to be taken out are stored in the non-sucked step number storage area. This storage may be performed in the order of step numbers. Further, for the step numbers after the step number 3 stored in the storage area, the suction operation of the component 3 is not performed, and the component 3 can be taken out by skipping to the next step number in the NC data. It is stored in a predetermined area of the RAM 39.

Next, the step number 3 which is a suction abnormality is not assigned at the start station of the sequence, but the step number is assigned according to the NC data and the component 3 is picked up according to the assignment. Done.
At this time, since the used table memory is not changed, the movement of the moving table 11A causes the taking-out operation of the component 3,
The removed component 3 is mounted on the substrate 7 in the same manner as described above.

In this way, when parts are taken out from the reel number 3 in the subsequent step numbers, the RAM 3
According to the information to be skipped stored in 9, the step number is not assigned at the start station of the sequence, but the next step number is assigned. Therefore, when the head 4 reaches the suction station I, the moving table 11A does not move to this position, but moves to the position of the reel number of the next step number and the component 3 is taken out.
The step number for which the skip is executed is deleted from the information to be skipped in the RAM 39.

Next, the component 3 is continuously picked up and mounted on the substrate 7 step by step, and the component 3 is taken out from the cassette 10 of the reel number 10 in which the component has run out as described above. In that case, the absence of the component 3 is detected by the detection of the component detection device 35 after the take-out operation,
Since it is out of parts, the occurrence of the suction abnormality is judged by the detection of the absence three times as described above, and similarly to the above, the step number in which the suction abnormality occurs in the non-suction step number storage area and the part of the reel number 10 thereafter. The step number from which the extraction is performed and the subsequent step numbers are stored in the information to be skipped. If the storage in the non-adsorption step number storage area is continuously performed for each reel number, the number of movements of the movement table 11B may be reduced at the time of adsorption in the recovery operation described later.

Next, in the suction station I, the suction operation of the component 3 is started from the step number next to the step number in which the suction abnormality has occurred. In this way, the suction operation of the component 3 is performed and the sequence is performed. When the final step number (the step number N indicated by E in the NC data of FIG. 6) is assigned to the start station of No. 2, the judgment of “is it the final step number” is YES in the flowchart of FIG. It is determined that there is a step number stored in the non-adsorption step number storage area, and the CPU 3
8 determines whether or not it is possible to alternate to the moving table 11B, that is, whether or not all the cassettes 10 of the table 11B can be used without any abnormality such as a lack of parts. If the cassette 10 of the table 11B has a suction abnormality such as a component shortage and the treatment (replenishment of the component 3 and the like) has not been completed, and the treatment completion switch has not been pressed, or the like is not usable. In this case, after mounting the components 3 up to the final step number N on the board 7, the apparatus 1 abnormally stops.

When it is determined that the moving table 11B can be used, the CPU 38 executes the alternate operation.

That is, the mounting table 11B is used to mount the component 3 having the step number which has not been mounted yet. The suction head 4 sucks the component 3 having the step number N by the suction station I. Immediately after going to the rotary table 2
The CPU 38 temporarily stops the rotation (stops the motor itself that drives the rotary table 2),
The used table memory in the AM 39 is rewritten from the current 1 to 2, and the moving table 11A is moved to the standby position on the left side in FIG.

Next, the component 3 having the suction abnormality occurrence step number
The adsorption operation of the
In the operation, after the last step number N of the NC data is assigned, the data is stored before the non-adsorption step number storage area for the adsorption head 4 which has reached the next station as shown in FIG. The first step number 3 of the reel number 3 is read out and assigned, and when the rotary table 2 starts rotating, the used table memory becomes 2
Therefore, the drive motor 24B is driven and the reel number 3
The moving table 11B is moved from the standby position so as to stop the cassette 10 corresponding to the reel number 63 at the component take-out position. When the moving table 11A starts moving to the standby position at the same time as the moving of the table 11B, the total moving time of the tables 11A and 11B may be shortened.

Next, the component 3 is taken out of the cassette 10 and is then transported to the mounting station II by the rotation of the rotary table 2, and the mounting operation on the substrate 7 is performed. Step number 3 in the unadsorbed step number storage area
Are erased when assigned at the start station of the sequence. Alternatively, the component detection device 35 and the recognition device 1
3 may be deleted when the presence of the component 3 is detected.

In this way, the start step of the sequence is started.
The step number for picking up the component is read from the reel number 3 stored in the non-sucking step number storage area, and is sequentially assigned to the suction head 4. After that, the component 3 is taken out at the suction station I. These parts 3 are cassettes 10 with the same reel number.
Since the moving table 11B is taken out, the parts 3 are taken out without moving.

Next, the allocation of the parts 3 to the group of step numbers of the reel number 3 is started in the sequence.
When the end of the reel number 10, the step number of the reel number 10 stored next is read out and sequentially assigned to the suction head 4 which reaches the station. When the head 4 assigned with the step number of the reel number 10 reaches the adsorption station I, the motor 24
By the rotation of B, the moving table 11B is moved, the cassette 10 of the reel number 10 is stopped at the component take-out position, and the component 3 is taken out (that is, the recovery process is started).

Thereafter, the component 3 is reel number 10 for each step number stored in the non-adsorption step number storage area.
The component 3 is mounted at the mounting coordinate position on the substrate 7 which is taken out from each of the respective step numbers at the angle position indicated by θ, and all the step numbers stored in the non-sucking step number storage area are assigned. When it disappears, it is judged that the final step is completed (that is, “is the final step adsorption in the flowchart of FIG. 1 YES”), and when the mounting of the component 3 having the last step number is completed, the recovery operation is performed. But the operation of the alternate is finished.

Next, since it is known that there is no suction abnormality, the board 7 on which the components have been mounted is ejected from the XY table 6, a new board 7 is placed, and the suction and mounting operation of the component 3 is performed according to NC data. The same operation is performed as described above, but since the used table memory remains 2, the moving table 11B
The parts 3 are taken out. Using the table 11B saves time required for table replacement, rather than using the moving table 11A.

The automatic recovery operation is performed before or after the alternate operation is activated if an adsorption error is detected. Therefore, even if an adsorption error is detected after the step number stored in the non-adsorption step number storage area is stored in the start station of the sequence for the alternate operation (this detection is normally NC data). The case where the reading is assigned and the case where the step number of the non-adsorbed step number storage area is read and assigned are included.), And the automatic recovery operation is performed. In this automatic recovery, the moving tables 11A and 11B are normally moved so that the parts 3 are taken out from the cassette 10 having the same reel number as the reel number in which the suction error has occurred, but the tables have changed after the alternate start. In this case, since there is always a cassette 10 with the same corresponding reel number that has not run out of parts, there is no problem because it is controlled to take out the parts 3 from there.

Then, even if the automatic recovery is performed a predetermined number of times, if a pickup error occurs, even if the pickup of the component 3 with respect to the step number read from the non-suction step number storage area is performed. As shown in the flowchart of FIG. 1, the data is again stored in the non-adsorption step number storage area. This is the start step of the sequence.
If it is allocated by the option, it is erased from the area and is stored again.

The operation of storing again in the storage area need not be performed as follows. That is, the step number assigned from the storage area is not erased until the component recognition device 13 finds that no suction error is detected in the storage area, and is erased when no suction error is detected. Even if an adsorption error is detected, if the adsorption error is no longer detected before the automatic recovery is performed a predetermined number of times, the data is erased, and it is not erased when the adsorption error is detected even after the predetermined number of automatic recovery. By stopping the automatic recovery with, there is no need to newly memorize. However, in this embodiment, the data is stored again as shown in FIG.

Also, unlike the present embodiment, with respect to the timing of activating the alternate, the step number stored in the non-adsorbed step number storage area is assigned to the start station of the sequence, the last step number of the NC data ( In this embodiment, instead of allocating to the next suction head 4 for which N) has ended, the component detection device 35 or the component recognition device 13 causes the component 3 of the final step number of the NC data to be assigned.
It may be assigned after it is known that there is no suction error in No. 3, or may be assigned after the component 3 having the final step number is attached in the attachment station II.

As described above, in this embodiment, while the step number is stored in the non-adsorbed step number storage area, the step number assigned from the non-adsorbed step number storage area to the start station of the sequence is Except for the step number in which the suction is abnormal, all the step numbers in the storage area are determined to be the final step when the allocation is completed, and the step number newly in the suction abnormal state at that time is shown in FIG. Alternate again according to the flowchart. In this way, the same operation is repeated until the step number is not stored in the non-adsorbed step number storage area. If an abnormality occurs such that the tables 11A and 11B are not ready in the middle of the process, the device is stopped.

For example, after the alternate operation, when the suction error is detected at the predetermined number of times of automatic recovery on the moving table 11B and the suction abnormality occurs again, the suction of the component 3 having the step number of the reel number in which the abnormality has occurred is not performed. If the step number is stored again without performing the step, and the step numbers of other reel numbers are stored, the component 3 for the step number is taken out, and the reel numbers other than the abnormal reel number are stored. When the removal of the component 3 for the step number is completed, it is determined that the suction is the final step in the flowchart of FIG. 1, and it is determined whether the alternation is possible. In this case, when the treatment of the cassette 10 in which the abnormality has occurred on the moving table 11A is finished and a switch (not shown) for finishing the treatment is pushed, the CPU 38
Judges that it is possible to alternate. If the treatment end switch has not been pressed, the device 1 stops abnormally.

Next, if the alternation is executed, the used table memory is switched from 2 to 1, and the reel number 63 in the moving table 11B is abnormal, for example, the step numbers remaining in the unadsorbed step number storage area are displayed. Is for reel number 3. The step number is read out, the moving table 11A is moved to position the cassette 10 with reel number 3 at the component take-out position, and the component 3 is taken out.

In this way, until there is no step number stored in the non-adsorbed step number storage area,
The same operation is repeated.

Further, unlike the operation of the flow chart of FIG. 1 of the present embodiment, after the allocation of the step number read from the NC data is completed at the start station of the sequence, it is stored in the unadsorbed step number storage area. After starting to assign the step number, an adsorption error occurs, automatic recovery is performed, and after the parts 3 are taken out from the replaced moving table by performing alternate, the same step number causes the adsorption error a predetermined number of times. Even if I wake it up,
Do not store in the non-adsorption step number storage area,
It is also possible to perform the alternate operation of exchanging the moving table again and start automatic recovery a predetermined number of times again. After that, if no pick-up error occurs with respect to the step number, the part 3 having another step number stored in the non-sucking step number storage area is taken out from the replaced table.

Alternatively, in the same operation as the operation of the flowchart of FIG. 1, after the step number assignment read from the NC data is completed at the start station of the sequence, the step stored in the non-adsorbed step number storage area. After the number is assigned, the part 3 having the step number stored in the non-sucking step number storage area
Even if the same step number occurs after a certain number of adsorption mistakes due to the adsorption, the value is not stored in the non-adsorption step number storage area, and the alternate operation is performed to replace the moving table again. Then, the automatic recovery can be started a predetermined number of times again.

In the present embodiment, the suction abnormality has been described as a case where the component detection device 35 detects a suction error that the component 3 is not sucked, but the component 3 is not sucked on the surface to be sucked. Even in the case of a suction error in which the suction is performed in a so-called standing state, the suction abnormality is detected when the suction occurs a predetermined number of times (including once).

Also, the adsorption abnormality may be detected by the recognition device 13, and in this case also, it is treated as an adsorption error,
It is determined that the suction is abnormal after a predetermined number of times. Or the part 3
Absence detection, detection of the standing state, and component recognition device 13
The number of suction errors is counted every time one of the suction error detections in (1) occurs, and when this number reaches a predetermined number, it is determined that the suction is abnormal. At this time, the component recognition device 13 does not perform the recognition processing for the component detection device 35 that has detected the suction error, and thus the same suction error is detected by the detection device 35 and the recognition device 13 in duplicate. There is no such thing.

Further, when the shortage of parts is detected by, for example, detecting the end of the tape for housing the part 3, it is judged as the suction abnormality of this embodiment at that time.

The component detecting device 35 detects the absence of the component 3 not only when the component is out, but also when the component 3 is supplied but may be dropped at the time of picking up. In some cases, the suction abnormality is also determined at this time, and the subsequent processing is similarly performed according to the flowchart of FIG.

In this embodiment, the case where the groups of the component supply cassettes 10 having the same arrangement are mounted on the moving tables 11A and 11B as the two supply tables has been described. However, the groups having the same arrangement are the same. Even when they are arranged side by side on the moving table, when the component 3 is taken out from the cassette 10 in one of the groups and the suction abnormality occurs, the parts of the other group are immediately identified with each other. Instead of picking up the part 3 from the cassette that supplies the part 3 of the product type, the part 3 having the next step number in the NC data is taken out, and after the picking up of the part 3 having the final step number is completed, the part 3 from the other group is picked up. It is possible to perform an operation similar to that of the present embodiment, in which the moving table is moved so as to perform suction of No. 3, and in this case, other groups are separated. Since it is disposed in a position,
When the moving amount of the moving table becomes large to move to another group and a plurality of adsorption abnormalities occur at the same time, it is possible to eliminate waste of time by the same operation as in the present embodiment.

Further, in the present embodiment, the reel number of the cassette 10 having the suction abnormality is not directly stored but the step number of the reel number is stored, but the reel number having the suction abnormality is stored. When the step number for picking up the component 3 is read from the cassette 10 of the reel number, the step number is stored without performing the suction operation, and the last step number is stored. After the above, the moving table may be exchanged and the suction operation of the component 3 having the stored step number may be performed. Then, the reel number stored as the adsorption abnormality may be erased when the treatment end switch is pushed due to the end of the replenishment or the like.

[0074]

As described above, according to the present invention, even if a suction abnormality is detected, the parts are not immediately taken out from the component supply cassettes of the same type in the other group, and therefore, when a plurality of suction abnormalities occur. Even if there is, the parts can be collectively taken out from other groups after the last order of taking out parts is completed, and the number of times of movement to other groups can be reduced, and the operation rate of the device can be increased.

Particularly, when other groups are mounted on different supply bases, it takes a long time to switch the supply bases, so that the effect of increasing the operation rate is great.

[Brief description of drawings]

FIG. 1 is a diagram showing a flowchart.

FIG. 2 is a plan view of an electronic component automatic mounting device to which the present embodiment is applied.

FIG. 3 is a side view showing a moving mechanism of a moving table.

FIG. 4 is a partially cutaway front view showing a moving mechanism of a moving table.

FIG. 5 is a control block diagram of the present invention.

FIG. 6 is a diagram showing NC data.

FIG. 7 is a plan view showing a state in which a step number of occurrence of a suction error is assigned to a start station of a sequence.

[Explanation of symbols]

 3 Chip-shaped Electronic Components (Electronic Components) 5 Adsorption Nozzle (Ejection Nozzle) 7 Printed Circuit Board 10 Component Supply Cassette 11A Moving Table (Supply Table) 11B Moving Table (Supply Table) 24A Drive Motor 24B Drive Motor 35 Component Detection Device 38 CPU ( Control means)

Claims (3)

[Claims] 1. A cassette having a plurality of identical arrangements, each of which is moved according to data indicating a mounting order within one group of a plurality of component supply cassettes arranged on a moving table. In an electronic component automatic mounting device that picks up an electronic component with a nozzle and mounts it on a printed circuit board, when a suction abnormality of the cassette is detected, the component pickup from the component supply cassette where the suction abnormality is detected is stopped, and the mounting data is stored. Based on the above, the components are taken out from the cassettes arranged in another group that supplies the same component type as the component supply cassette whose component removal is stopped after the last-ordered component is taken out, and attaches it to the board. An electronic component automatic mounting apparatus comprising a control means for controlling the movement of a supply base. 2. A group of component supply cassettes on one supply table, wherein groups of component supply cassettes for supplying electronic components are arranged on a plurality of supply tables that reciprocate on the same movement path, respectively. In the electronic component automatic mounting apparatus that picks up electronic components from the cassette according to the data indicating the mounting order in the cassette and mounts them on the printed circuit board by the electronic component mounting device, when the suction abnormality of the cassette is detected, the component for which the suction abnormality is detected is detected. The parts are taken out from the supply cassette, and the parts are continuously arranged based on the mounting data. After the last part is taken out, the parts are taken out from the parts cassette and the same kind of parts as the parts supply cassette is arranged. The automatic electronic component mounting apparatus is provided with control means for controlling the movement of the supply table so that the components can be taken out from the cassette and mounted on the substrate. Place. 3. A cassette having a plurality of identical arrangements, each of which is moved according to data indicating a mounting order in one of a plurality of component supply cassettes arranged on a supply table, and each cassette is moved from the cassette. In the electronic component mounting method, in which an electronic component is taken out with a nozzle and mounted on a printed circuit board, a detection process for detecting a suction abnormality of a cassette and a removal of a component from a component supply cassette in which the suction abnormality is detected in the detection process are stopped. A determination step of determining to continue the mounting based on the mounting data, and a cassette arranged in another group that supplies the same component type as the component supply cassette whose component removal is stopped after the last component is removed. An electronic component mounting method comprising a component mounting recovery step of picking up components and mounting them on a substrate.