JP2854195B2 - Electronic component automatic mounting device - Google Patents

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 apparatus for mounting an electronic component on a printed circuit board by suctioning the electronic component with a suction nozzle.

[0002]

2. Description of the Related Art This type of electronic component automatic mounting apparatus is disclosed in
No. 1,160,795. The counter counts when the suction nozzle cannot suction the chip-shaped electronic component or when an abnormal state such as a standing state is detected.

If the suction rate, which is the ratio of the number of suction errors counted as described above to the number of suction attempts, becomes worse than a predetermined suction rate, the nozzle skipping operation is stopped after that. Is performed.

[0004]

However, in the prior art, it is not possible to know that a suction error has occurred until a nozzle skip occurs, and the nozzle skips even if a simple data setting error occurs. In some cases, it took time to return. Therefore, an object of the present invention is to make it possible to know a suction error regardless of nozzle skipping.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to an electronic component automatic mounting apparatus for mounting electronic components on a printed circuit board by suctioning electronic components with a plurality of suction nozzles. A warning unit that warns when the number of unsucked times until reaching the first predetermined number is reached, and the number of unsucked times until the other number of suction times is larger than the predetermined number of suctions becomes the second predetermined number. And control means for controlling so as to skip the suction nozzle when it becomes true.

[0006]

The warning means gives a warning when the number of unsucked times for each of the nozzles reaches the predetermined number of suctions reaches a first predetermined number, and the control means warns other suction nozzles larger than the predetermined number of suctions. The suction nozzle is skipped when the number of unsucked times until the number of times reaches the second predetermined number.

[0007]

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

In FIG. 2 and FIG. 3, (1) is an X table which moves in the X direction by rotation of an X-axis motor (2), and (3) is an X table which is rotated by a Y-axis motor (4). This is an XY table that moves in the XY direction by moving in the Y direction on the X table (1), and is a printed circuit board on which the chip-shaped electronic component (5) (hereinafter, referred to as a chip component or component) is mounted. (6) is fixed and mounted on fixing means (not shown).

[0009] (7) is a supply stand, chip components (5)
A large number of component supply devices (8) for supplying the components are provided. (9) is a supply stand drive motor, which is a ball screw (1).
By rotating (0), the supply table (7) is guided by the linear guide (12) via the nut (11) fitted with the ball screw (10) and fixed to the supply table (7). Move in X direction. (13) is a turntable which rotates intermittently. At the outer edge of the table (13), mounting heads (15) having six suction nozzles (14) are arranged at regular intervals according to the intermittent pitch. I have.

Although the number of heads (15), that is, the number of stop stations to be described later, is actually 24, which is twice the number of 12 shown in FIG. The description will be made with reference to FIG. FIG. 2 shows the actual order of arrangement of each stop station with respect to the turntable (13) and the positions of the suction station and the mounting station.
And does not change.

(A) Description of each station (see FIG. 2) In FIG. 2, the stop position of the mounting head (15) in which the suction nozzle (14) sucks and takes out the component (5) from the supply device (8) is the suction station. The suction nozzle (14) sucks the component (5) at the suction station.

The stop position of the mounting head (15) immediately before the suction station is a suction correction station, and the suction correction device (191) performs suction in the Y direction, which is a direction perpendicular to the moving direction of the supply table (7). The position of the nozzle (14) is corrected.

The stop position next to the suction station is a component posture detection station, which detects whether or not the component (5) of the suction nozzle (14) is suctioned and detects the standing of the component (5) described later. Will be

In step (16), the position of the component (5) to be sucked by the suction nozzle (14) is imaged in a predetermined visual field range with a camera on the lower surface of the component (5), and the imaged screen is recognized and recognized. The recognition station is a component recognition device, in which the turntable (13) rotates and the mounting head (15) stops on the device (16).

The next mounting head (1) of the recognition station
The stop position of 5) is the angle correction station, and the mounting head (1) is based on the recognition result by the recognition device (16).
The component (5) to be sucked by the suction nozzle (14) when the head (5) is rotated in the θ direction by the head rotation device (17).
Is corrected.

The next stop position after the angle correction station is the mounting station, on which the component (5) to be sucked by the suction nozzle (14) of the station is mounted on the substrate (6).

The position at which the mounting head (15) stops next to the mounting station is the nozzle selection station, and the head (15) is rotated by the nozzle selection device (19) to arbitrarily select a plurality of nozzles (14). The nozzle (14) is selected.

Next, the position at which the mounting head (15) stops is the nozzle access station, in which the nozzle (14) is stored and projected using the first nozzle abutment (20) (FIGS. 9 to 9). 11).

Next, the position at which the mounting head (15) stops is the nozzle height selection station, and the height position of the nozzle (14) is selected using the second nozzle abutment table (21) ( 12 and 13).

(B) Description of the mounting head (15) As shown in FIG. 3, each mounting head (15) penetrates the turntable (13) at two locations inside and outside so as to be able to move up and down. The shaft (24) is fixed to an L-shaped roller mount (25). An upper cam follower (26) and a lower cam follower (27) projecting inward from the upper portion of the roller mounting body (25) are pivotally supported.

Reference numeral (28) denotes a support for rotatably supporting the turntable (13) in a horizontal direction below. The support (28) is provided around a rotation axis of the turntable (13). A cylindrical cam (29) is fixedly protruded from the support table (28), and the upper cam follower (26) is in contact with the upper surface of the cam (29) to suspend and support the mounting body (25). This supports the mounting head (15). The lower cam follower (27) is urged by a compression spring (not shown) to press the lower surface of the cam (29), and the cam followers (26) and (27) sandwich the cam (29).

Further, since the cylindrical cam (29) is moved up and down, the cam follower (2) is rotated by turning the turntable (13).
6) The (27) moves while rolling on the upper and lower surfaces of the cam (29), and accordingly, the mounting head (15) also rotates while moving up and down.

A vacuum tube (36) for supplying a vacuum to the suction nozzle (14) of the mounting head (15) is provided on the support (28) via a vacuum passage (37) in the turntable (13). Connected to a vacuum source (not shown).

The mounting head (15) is shown in FIGS.
This will be described with reference to FIGS. 6, 14, and 17.

Reference numeral (39) denotes a mounting plate fixed to a lower portion of the shaft (24), and a rotating body (40) is rotatably mounted in the θ direction via a bearing (40A). The six suction nozzles (14) are provided at equal rotation angles in the θ direction by vertically penetrating the rotating body (40). The six suction nozzles (14) are of various types so as to be able to suction various components (5), such as having different diameters. An engagement body (38) is attached to the upper part of each nozzle (14), and an engagement piece (42) with which a pressing spring (41) is engaged is formed on the engagement body (38). (14) is always biased downward. The pressing spring (41) is wound around the guide rod (104), and the engaging piece (42) is provided with a through hole through which the guide rod (104) passes. A support shaft (43) is provided above the rotating body (40).
A lever (44) is swingably provided around the nozzle (14) so as to correspond to each nozzle (14).
A locking claw (45) is formed at the lower part. (46) is a spring for urging the lever (44) so that the claw (45) rotates inward.

The engaging claw (4) is provided at the upper end of the engaging body (38).
5) is formed with an upper engaging claw (47) that can be engaged with the lower engaging claw (48) formed at the lower end of the engaging body (38) on the regulating surface (40B) of the rotating body (40). The lower end position of the suction nozzle (14) is restricted by contacting the lower end position, and the lower end position of the suction nozzle (14) is restricted by engaging with the locking claw (45). .

The position of the suction nozzle (14) on the right side of FIG. 4 where the upper engaging claw (47) engages with the locking claw (45) is determined by the lower engaging claw (48) restricting the rotating body (40). The position is one step higher than the position on the right side of FIG. 5 regulated by the surface (40B), and is a position in the case of sucking a thick component (4). This height position of the suction nozzle (14) is hereinafter referred to as "intermediate height position".

The lower engaging claw (48) is connected to the rotating body (40).
When the suction nozzle (14) on the right side in FIG. 5 is restricted to the lowermost position, the upper side surface (49) of the upper engaging claw (47) is connected to the lower side surface (49) of the locking claw (45). 50), and the suction nozzle (1)
4) can be moved up.

At the upper end of the rotating body (40), a bit (66) described later for rotating the rotating body (40) is provided.
The fitting grooves (52) into which are fittable are formed in three directions at substantially equal angular intervals every 60 degrees along the rotation axis of the rotating body (40) in accordance with the arrangement position of the suction nozzle (14). Have been. That is, the length of the groove (52) is 6
The suction nozzles (14) are provided at 0-degree intervals.

In the case where five suction nozzles are arranged on the rotating body at equal angular intervals, the fitting grooves are provided on a straight line in the direction in which the nozzles are arranged. Grooves will be arranged at 36 degrees intervals around the axis.

As shown in FIG. 17, notches (notches) are formed around the nozzle position identification portion (110) below the rotating body (40) at equal angular intervals in accordance with the position of the suction nozzle (14). A nozzle position identification code (112) indicating the mounting position of the suction nozzle (14) is provided without providing the 111).

As shown in FIG. 14, the vacuum tube (36) communicates with a vacuum chamber (105) formed around the rotating body (40), and the suction nozzle (14) of the rotating body (40). Vacuum holes (10
6) and a suction hole (108) communicating with the tip of the suction nozzle (14) through a communication port (107) formed in a side surface of the suction nozzle (14) so that the component (5) can be vacuum-sucked. It has been done. The vacuum hole (106) is vertically elongated so that the communication hole (107) communicates when the suction nozzle (14) is located at both the "middle height position" and the "lowest position". When the nozzle (14) is in the "storage position" as shown on the left side of FIG.
The vacuum of 08) is cut off.

(C) Description of the lifting mechanism of the mounting head (15) The mounting head (15) is a suction station and a mounting station.
As shown in FIG. 3, at each station where the mounting head (15) moves up and down, as shown in FIG. 3, the cylindrical cam (29) has a U-shaped cross section arranged at a cutout portion. The cam followers (26) and (27) sandwich the projecting piece (57) at the lower part of the block (53) so that the mounting head (1) is inserted.
5) is in a supported state. The lifting block (53)
Is raised and lowered by the rotation of a motor (not shown) that rotates the turntable (13), and the rotation of a cam (not shown) that makes one rotation for each intermittent rotation of the turntable (13). Further, in the suction station and the mounting station, the lifting stroke can be changed by a stroke changing mechanism (not shown) in accordance with the chip component (5) to be suctioned or mounted.

(D) Description of the component supply device (8) (see FIGS. 3 and 15) In the suction station, the component (5) supplied by the component supply device (8) is sucked by the suction nozzle (14) descending. Taken out. The part (5) housed at regular intervals in the tape (130) wound on the tape reel (59) is transmitted to the transmission lever (131) by swinging the swing lever (61) counterclockwise in FIG. Through the feed lever (132)
15 swings counterclockwise in FIG. 15, the feed claw (133) rotates the feed gear (134), and the tape (130) is fed at a predetermined pitch by the rotation of the sprocket (135). ).

On the other hand, the rotation of the swing lever (61) in the counterclockwise direction in FIG. 15 causes the ratchet lever (137) to swing in the counterclockwise direction via the tension spring (136), and the ratchet pawl (138). Engages with the ratchet gear (139) and rotates the cover tape reel (140) counterclockwise in FIG. By the rotation of the reel (140), the suppressor (14) pressing the tape (130) is
At the opening (142) of 1), the cover tape (143) stuck on the upper surface of the tape (130) is wound on a reel (A40) while being peeled off from the tape (130).

(E) The swing lever (6) for feeding the tape
Description of the mechanism for swinging 1) (see FIG. 3) (64) penetrates the lifting guide block (144) attached to the support base (28) so as to be able to move up and down to swing the swing lever (61). The supply device (8) arrives at a position where it is sucked by the suction nozzle (14) of the suction station by the movement of the supply table (7) and stops after moving down, and lowers the swing lever (61). The above-described tape feed, which is a push-down component supply operation, is carried out to move up. The lifting rod (6
The vertical movement of 4) is caused by the rotation of a cam (not shown) that makes one rotation every intermittent rotation of the turntable (13).

(F) Description of the component posture detection station.

As shown in FIG. 18, the component attitude detection station is provided with a component presence / absence detection sensor (116) composed of a light emitter (114) and a light receiver (115). If the light emitted from the light emitter (114) is blocked by the chip component (5) sucked by the suction nozzle (14), the presence of the component is detected. If not, the light is received by the light receiver (115). None is detected.

As shown in FIG. 19, the station is further provided with a component posture detection sensor (119) composed of a light projector (117) and a light receiver (118). The light emitted from the light projector (117) is supplied to the suction nozzle (14) in a normal state as shown by a broken line in FIG.
19, the chip component (5) is received by the light receiver (118) without being shielded from light. However, when the chip component (5) is sucked in a standing state as shown by a solid line in FIG. Is detected.

The sensor (116) and the sensor (11) are arranged such that the optical axes of the light emitted from the light projector (114) and the light projector (117) cross each other below the suction nozzle on a plane.
7) is provided at another location so that the presence or absence of a part and the standing of the part can be detected simultaneously at the same station. The component presence / absence detection sensor (116) and the component attitude detection sensor (119) are respectively provided with a suction nozzle (1) described later.
4) are provided vertically in accordance with the intermediate position and the lowermost position.

(G) The rotating body (4) of the mounting head (15)
Description for Rotating 0) The suction correction device (191), the head rotation device (17), and the nozzle selection device (19) will be described.

Since the devices (191), (17) and (19) have the same structure, the nozzle selecting device (19) will be described with reference to FIGS. 7, 8 and 16.

(66) is a guide portion (6) attached to an attachment plate (65) attached to the support (28).
7) A bit that is formed at the lower end of an elevating member (68) that penetrates the inside and moves up and down as shown in FIG. 16 and that passes through the rotation axis of the elevating member (68) in the depth direction of FIG. 6 and can be fitted into two fitted grooves (52) in the same direction. A gear (71) formed at the upper end of an elevating member (68) is moved up and down by a gear (70) which is rotated by the rotation of a nozzle selection motor (69) which is a pulse motor provided on the guide portion (67). The lifting member (68) rotates in the θ direction by meshing as much as possible, and the fitting groove (52)
The bit (66) fitted to the shaft rotates the rotating body (40).

A disk (122) is mounted on the rotating shaft (121) on which the gear (70) of the motor (69) is mounted, on the opposite side of the motor (69). The disk (122) has slits (12) as shown in FIG.
6) are cut out at equal intervals on the outer edge thereof, and the slit (123) can be detected by a transmitted light sensor (126) composed of a light emitter and a light receiver.

However, in the suction correction device (191) and the head rotation device (17), only one slit is provided in the disk corresponding to the disk (122).

Reference numeral (72) denotes a swinging lever which is rotatable around a support shaft (73), and a roller (74) provided at the right end (FIG. 8) is provided over the periphery of the elevating member (68). The lifting member (68) is moved up and down by fitting into the recessed portion (75) and swinging. (76) is a spring provided between the elevating member (68) and the guide part (67), and urges the elevating member (68) to descend. A rod (77) is rotatably supported at the left end of the swing lever (72), and one end of a lever (79) rotatable around a support shaft (78) is rotatable above the rod (77). Is pivoted to. A spring (80) is attached to this end so as to pull the lever (79) to swing counterclockwise in FIG. The other end of the lever (79) is engaged with the cam (81). The swing lever (72) swings by the rotation of the cam (81), and the bit (66) is raised and lowered, and is fitted in the fitted groove (52) at the lowered position.

The rotating body (40) fitted with the bit (66) by the 360-degree rotation of the motor (69) (ie, the 360-degree rotation of the disk (122)) rotates the gear (70) so as to rotate 360 degrees. ) (71), and
When the motor (69) stops at the position where the slit (123) is detected, the suction nozzle (14) corresponding to the slit (123) stops at the position for sucking the component (5).

At the nozzle selection station, the nozzle position identification code (112) corresponding to the suction nozzle (14) stopped at the position for suction is shown in FIGS. 14 and 17. Three reflective optical sensors (S
1) A nozzle position identification sensor (113) composed of (S2) and (S3) is provided, and a notch (111) at a position where each of the reflection type optical sensors (S1), (S2), and (S3) opposes each other. Is detected, and if there is a notch (111), “1” is output, and if not, “0” is output. For example, in the case of the present embodiment, as shown in FIG. 21, each sensor (S1) for each nozzle number indicating the mounting position of the suction nozzle (14) corresponding to each nozzle position identification code (112) with respect to the rotating body (40). A cutout (111) is formed in each nozzle position identification code (112) so as to be output from (2) and (S3). FIG. 17 shows a case where the suction nozzle (14) of the nozzle number "1" is stopped at the position for sucking the chip component (5), and the next nozzle position identification code part (112) in the clockwise direction. Is the nozzle number “2”, and the nozzle numbers “3” to “6” in the clockwise order correspond to the respective nozzle position identification codes (112). Suction correction device (191)
In addition, the head rotation device (17) is not provided with the nozzle position identification sensor (113).

FIG. 8 shows a proximity sensor (124) which is a proximity sensor when the upper wall (125) of the recess (75) formed in the elevating member (68) faces the sensor (124). "ON" is output, and "OFF" is output when the concave portion (75) is opposed. When the lever (72) swings counterclockwise in FIG. 8 to raise the elevating member (68), the sensor (124) faces the concave portion (75) and the elevating member (68) Falls and bit (66)
Is fitted in the fitted groove (52), the sensor (124) faces the wall surface (125). Lifting member (6
8) If the bit (66) cannot be fitted into the fitted groove (52) and cannot be fully lowered even if it is lowered, the bit (66) faces the recess (75) and the sensor (124) outputs "OFF". It has been made to be. Therefore, it is possible to detect whether the elevating member (68) has descended when it should descend.

(H) Description of the mechanism for protruding and storing the suction nozzle (14) at the nozzle entrance / exit station (FIGS. 9 to 1)
(84) Reference numeral (84) denotes a nozzle releasing lever which rotates around the support shaft (85), which is rotated and selected by the nozzle selecting device (19) and is located at a position where the component (5) is next sucked. It is provided at a position where it can be engaged with the upper end of a lever (44) that engages with the nozzle (14). One end of the lever (84) is rotatably supported by a rod (87), and a spring (88) is hung on one end of the lever (84) between the lever (84) and a mounting plate (65). Are biased to rotate in the counterclockwise direction in FIG. The other end of the rod (87) is pivotally supported by a lever (91) that rotates around a support shaft (90) that engages with the cam (89).

A suction nozzle (14) projecting from a mounting head (15) descending to a first nozzle abutment table (20) provided on a base (92) mounted on a mounting plate (65). The suction nozzles (14) are all housed by coming in contact and descending further. The height of the abutment table (20) is set so that the suction nozzle (14) projecting to the lowermost position does not hit the mounting head (15) when the mounting head (15) moves to and from the nozzle access station. Have been.

(I) Description of the nozzle height selection station Next, the mounting head (1) is set at the nozzle height selection station.
5) whether or not to lower the suction nozzle (14)
A mechanism for selecting whether or not to set “intermediate height position” will be described.

The second nozzle abutment (21) is also provided on the base (92) as shown in FIG. 12, and the height thereof is the same as that of the nozzle abutment (20). The height is set so as not to hit (14). Cylindrical cam (2
Since the height of 9) is substantially the same between the stations, both of the nozzle abutments 20 and 21 are substantially the same height.

In FIG. 12, a guide (15) attached to a support plate (156) fixed to a support (28).
The lifting rod (158) that moves up and down along 7) is supported by a support shaft (9).
4) is pivotally supported on one end of a lever (95) rotatable around and is urged by a tension spring (96) bridged between the rod (158) and the support (28). The other end of the lever (95) is engaged with the cam (97).
For this reason, the mounting head (15) is rotated by the cam (97) to raise and lower the lifting block (159) attached to the lower end of the lifting rod (158). ) Is moved up and down via the cam followers (26) and (27) sandwiching the above. This elevating stroke is shorter than the stroke at the nozzle entry / exit station, and lowers the elevating head (15) to a position where the upper engaging claw (47) is locked by the locking claw (45) (the position of the right nozzle in FIG. 4). It is to let.

A clutch lever (98) is rotatable around a support shaft (99). The clutch lever is rotatably supported by a plunger (101) of the solenoid (100) and is excited by the solenoid (100). By plunger (10
1) is pulled, and the pressing spring (102) is pressed against the urging force of the pressing spring (102).
2 counterclockwise to engage below the left end of the lever (95), restrict the rotation of the lever (95), and prevent the lifting block (159) from descending so that the suction nozzle (1)
4) is set at the lowermost position so as not to hit the contact stand (21). When the solenoid (100) is demagnetized, the lever (98) is brought into the state shown in FIG.
3) so that the nozzle (14) is lowered and the abutment (2)
In the case of 1), “intermediate height position” is used.

The mechanism for raising and lowering the mounting head (15) at the nozzle entrance / exit station in FIG. 9 is also a nozzle selection station.
The structure is the same, including a mechanism for selecting whether to move up and down and configured by a solenoid (100), a clutch lever (98), etc., and the same reference numerals are used in the drawings. However, the stroke is different due to the difference of the cam and the like as described above.

(V) Detection of the suction nozzle (14) in the nozzle selection station will be described.

In the nozzle selection station, as shown in FIG. 22, when the mounting head (15) reaches the suction station, a suction nozzle (14) (FIG. 22) used for suctioning the chip component (5). And a use nozzle detection sensor (129) for detecting whether the turntable (13) is located at the outermost position from the center of the turntable (13). Have been. The sensor (129) is a transmitted light sensor in which the light emitted from the light emitter (127) is received by the light receiver (128), and as shown in FIG. 23, the suction nozzle (14) projecting to the lowermost position. ), The light from the light projector (127) is blocked, and the suction nozzle (14) at the lowermost position is detected. The suction nozzle (14) at the intermediate position is not blocked and the suction nozzle (14) is at a level higher than the intermediate position. In some cases, it is detected that it is not at the lowermost position. When the mounting head (15) is stopped at the nozzle selection station, the optical axis of the sensor (129) is blocked by only the suction nozzle (14) used for suction as shown in FIG. Even if the other suction nozzle (14) projects to the lowermost position, light is not shielded.

FIG. 22 shows the nozzle selection station.
In the state where the mounting head (15) is stopped as shown in FIG. 22, a straight line connecting one suction nozzle (14) on the left side of FIG. 22 of the suction nozzle (14) used for suction is defined as an optical axis. Nozzle detection sensor (146) is provided.
When the one suction nozzle (14) protrudes from the storage position, the irradiation light from the light projector (147) is blocked by the nozzle and not received by the light receiver (148) as shown in FIG. Projection from the position is detected. Four suction nozzles (14) other than those described above of the mounting head (15)
Is detected by the nozzle detection sensor (149), and whether the mounting head (1)
5) When the sensor (149) is stopped, the suction nozzle (150) and the light receiving device (151) constituting the sensor (149) are placed on the optical axis of the nozzle detection sensor (146) shown in FIG. 14) The next suction nozzle (1) in the clockwise direction
4) is located. The floodlight (15
0) and the height position of the light receiver (151)
The state shown in FIG. 24 is the same as that in 6). Sensor (14
The output signal from 9) is in the “ON” state as shown in FIG. 60 while the light from the light emitter (150) is being received by the light receiver (151), and becomes “OFF” when light is shielded. The rotation of the turntable (13) starts after the intermittent rotation of the turntable (13) is stopped, and the mounting head (15) moves to move all the suction nozzles (14) of the head (15). ) Is kept off by an off-delay circuit (not shown) as shown in FIG. 60 until after the light passes through the optical axis of the sensor (149). The timing of capturing the output signal from the sensor (149) into the CPU (170), which will be described later, is performed while all the suction nozzles (14) pass and the "OFF" state continues, and the mounting head (15) When the “OFF” state due to the light blocking of the light of the light projector (150) is detected after moving, it is detected that some of the remaining four nozzles (14) protrude from the storage position. . When all of the four suction nozzles (14) are stored in the storage positions, the light is not blocked, and the output signal of the sensor (149) remains in the "ON" state. Is determined. CPU (1) of the output signal from the used nozzle detection sensor (129) and the nozzle detection sensor (146)
70) The timing of loading into the mounting head (15)
Is stopped only, and even if the mounting head (15) is moved and the light is blocked, no detection is performed.

(L) Description of the detection of the height position of the suction nozzle (14) in the nozzle height selection station.

At the nozzle height selection station, FIG.
2. As shown in FIG. 13 and FIG.
A nozzle height detection sensor (154) configured by 2) and a light receiver (153) to detect the nozzle height is provided. The height of the optical axis of the sensor (154) is raised when the suction nozzle (14) used for suction is at the lowermost position with the mounting head (15) raised as shown in FIG. ), And when the nozzle (14) is at the intermediate position, light is transmitted and received by the light receiver (153). Therefore, if the suction nozzle (14) used for suction should be at the lowermost position, the CPU (170) shields the sensor (154) from light when the mounting head (15) stops at the nozzle height selection station. Then, it is determined that the suction nozzle (14) is at the lowermost position, and if light is received by the light receiver (153), the nozzle (1) is detected.
It is determined that 4) is not protruded. If the suction nozzle (14) should be at the intermediate position, the mounting head (1)
5) After reaching the nozzle height selection station and descending and then ascending, if the sensor (154) transmits light and is received by the light receiver (153), it is determined that it has protruded to the intermediate position. If the light is not received by the light receiving device (153) after being shielded from light, it is determined that the intermediate position has failed and the light is still at the lowermost position.

(ヲ) Description of head number detection.

An index unit (not shown) for intermittently rotating the turntable (13) is attached above the turntable (13) in FIG.
As shown in FIG. 44, five light shielding plates (163) (16) are provided on the rotation shaft (162) of the index unit.
4) (165), (166) and (167) are attached. Light shielding plates (163) (164) (165) (16
6) and (167) have slits (168) cut out as shown in FIG. 45 to FIG. 49, respectively, so that transmitted light sensors (200), (201), (202), and (203) are provided.
(204) corresponding light shielding plates (163) and (164), respectively
(165) Slit of (166) (167) (168)
It is detected by transmitting light. Each sensor (20
0), (201), (202), (203), and (204) are output at the stop position of the intermittent rotation of the rotating shaft (162), that is, the mounting head (1) stopped at the nozzle selection station.
The head number of 5) is as shown in FIG. Therefore, the sensor (200)
Based on the output states of (201), (202), (203) and (204), the head number of the mounting head (15) currently stopped at the nozzle selection station can be detected. “Light incident” in FIG. 50 is a transmitted light sensor (200)
(201), (202), (203), and (204) are in a light-transmitting state by the slit (168). The sensors (200), (202), and (204) are provided in the apparatus main body (1).
FIG. 44 shows the mounting plate (205) attached to the mounting plate (88).
51, and the sensor (20
1) (203) is similarly attached to the attachment plate (206).

(C) Description of Control Block Diagram (FIG. 1) In FIG. 1, reference numeral (170) denotes a CPU,
71) according to the program stored in the RAM (17).
Based on the data stored in 2) and the output signal via the interface (173) of the sensor as described above and shown in FIG. 1, the operation related to component mounting is controlled. The CP
U (170) controls a motor and the like described below in FIG. 1 via an interface (173) and a driving circuit (174).

(176) is a nozzle correction motor (6) of the nozzle selection device (19) in the suction correction device (191).
Reference numeral 178 denotes a suction correction motor corresponding to 9), and reference numeral 178 denotes a nozzle selector (19) in the head rotating device (17).
Is an angle correction motor corresponding to the nozzle selection motor (69). Motors (176) and (178) are all motors (6
This is a pulse motor as in 9).

An operation unit (180), a tower light (185), a touch panel switch (186), a CRT (187), a buzzer (189) and the like are further connected to the interface (173). The operation unit (180) includes a start key (18) for starting automatic operation of component mounting.
1) A stop key (182) for stopping the automatic operation and a return key (183) for stopping a warning display and the like are provided.

The tower light (185) is attached to the apparatus main body (188) as shown in FIG.
The colors are arranged in yellow and green, and various notifications are given to the operator from lighting, blinking and turning off of these colors. Buzzer (18
9) gives various notifications by sound.

The touch panel switch (186)
It is mounted on the screen of the CRT (187) via a mounting tool (not shown). The touch panel switch (186) has a transparent conductive film coated on the entire surface of a glass substrate, and electrodes are printed on four sides. Therefore, a very small current is applied to the surface of the touch panel switch (186), and when the operator touches, a current change occurs in the four electrodes, and the coordinate value touched by the circuit board connected to the electrodes is calculated. Therefore, the coordinate value is RA
If the coordinates in the group of coordinate values stored in advance as a switch unit for performing the work in M (172) match, the work is performed. In this embodiment, the CRT (1
87) is stored for each screen so that a portion surrounded by a double frame of the screen displayed as the switch unit is the above-mentioned switch unit.

The RAM (172) stores the NC data as shown in FIG. 28, the parts data as shown in FIG. 30, the nozzle data as shown in FIG.
And the like are stored. In the NC data of FIG. 28, the step numbers indicate the order in which the component (5) is mounted on the board (6), and for each step number, X coordinate data indicated by "X", Y coordinate data indicated by "Y", The θ angle data indicated by “θ” and the reel number on the supply table (7) on which the component supply device (8) to which the component (5) is to be supplied are stored. The part data of FIG. 30 stores the component type of the chip component (5) supplied by the component supply device (8) mounted at the position for each reel number. The nozzle data of FIG. 31 includes a nozzle for each nozzle number which is a mounting position of the suction nozzle (14) in the mounting head (15) for each head number assigned to each mounting position of the mounting head (15) on the turntable (13). The nozzle type indicating the type is stored. In the part library data of FIG. 29, “nozzle type” indicates the type of the nozzle (14) used to suck the component (5) of the component type, and “nozzle height” indicates that the suction nozzle (14) is in the middle. “H” is stored when used at the position, and “L” is stored when used at the lowermost position.

"E" in the "C" column of the NC data indicates that component mounting on the board (6) has been completed at that step number.

The RAM (172) is further provided with a memory group and a counter group described below.

In other words, a reel abnormal suction frequency memory (for storing the suction rate of the suction rate) for storing the reel warning suction rate set for warning display of the reel number of the component supply device (8) whose suction rate has decreased during the automatic operation. Numerator) and reel suction count memory (denominator of adsorption rate) are provided,
A reel abnormal suction frequency counter for counting the abnormal suction frequency and a reel suction frequency counter for counting the suction frequency are provided for each reel number. It is assumed that a 4-digit number can be set in the reel abnormal suction number memory and the set number is “n1”, and a 4-digit number can be set in the reel suction number memory and the set number is “m1”. ,
Each time the component supply device (8) of the same reel number picks up m1 times, the reel abnormal suction count counter and the reel suction count counter are cleared, and before the suction count reaches “m1”, the reel abnormal suction count counter changes to “m1”. If n1 "is reached, a warning is issued as described later, and the reel abnormal suction number counter and the reel suction number counter are cleared. The warning is released by pressing the alarm release key (195) and the return key (183) as shown in FIG.

Further, a nozzle abnormal suction count memory (which becomes a numerator of the suction rate) for storing a nozzle warning suction rate set for warning a nozzle number whose suction rate has decreased during automatic operation, and a nozzle suction. A count memory (which is a denominator of the suction rate) is provided, and a nozzle abnormal suction count counter for counting the abnormal suction count and a nozzle suction count counter for counting the suction count are provided for each nozzle number for each head number. ing. In the nozzle abnormal suction count memory, a three-digit count can be set, and the set count is “n”.
2 ", and a three-digit number can also be set in the nozzle suction number memory. If the set number is" m2 ", the suction nozzle (14) having the same head number and nozzle number sucks m2 times. In addition, the nozzle abnormal suction frequency counter and the nozzle suction frequency counter are cleared, and if the nozzle abnormal suction frequency counter reaches “n2” before the suction frequency reaches “m2”, a warning is issued as described later and the nozzle The abnormal suction counter and the nozzle suction counter are cleared. The warning is released by an alarm release key (195) and a return key (183) as shown in FIG. Further, a continuous suction abnormality number memory for storing the number of suction abnormalities set for automatically skipping the suction nozzles (14) having a suction abnormality continuously during the automatic operation, and a continuous counting of the number of continuous suction abnormalities. A suction abnormality number counter is provided for each nozzle number for each head number. The counter is cleared when the same nozzle (14) is suctioned normally, and when the suction error occurs continuously and the set number of times is reached, the suction nozzle (14) is automatically skipped thereafter. Skipping means that the chip component (5) is not sucked, and therefore, all operations starting from the nozzle selection station and performing operations at each stop station to operations at the recognition station are pertinent. This is not done by the suction nozzle (14).

A nozzle skip abnormal suction count memory (a numerator of the suction rate and a numerator of the suction rate) for storing the nozzle skip suction rate set for automatically skipping the suction nozzle (14) whose suction rate has decreased during the automatic operation. ) And a nozzle skip suction frequency memory (which is a denominator of the suction rate) are provided, and a nozzle skip abnormal suction frequency counter for counting the abnormal suction frequency and a nozzle skip suction frequency counter for counting the suction frequency are provided. Each is provided for each nozzle number for each head number. The four-digit count can be set in the abnormal skip count memory for nozzle skip, and the set count is “n3”. The four-digit count can also be set in the nozzle skip count memory, and the set count is “m3”. If m is suctioned m3 times by the suction nozzle (14) having the same head number and nozzle number,
The abnormal suction count counter for nozzle skip and the suction count counter for nozzle skip are cleared, and the suction count becomes “m”.
If the abnormal suction counter for nozzle skipping reaches "n3" before reaching "3", the suction nozzle (14) is automatically skipped thereafter.

The above-described detection of the suction abnormality is performed when the absence of a component is detected by the component presence / absence detection sensor (113).
When the standing of the component is detected by the component posture detecting sensor (119), and when the component recognizing device (16) recognizes that the chip component (5) is not sucked or cannot recognize the chip component (5), the component recognition is abnormal. There is. The above-mentioned counter for counting the adsorption abnormality counts in all these cases. However, if no component or a standing component is detected, the operation at the subsequent stop station is not performed, and the component recognition device (16) does not recognize the component, so the same suction abnormality is duplicated twice. There is no counting.

Further, during automatic operation, the nozzle height cannot be switched from the lowermost position to the intermediate position at the nozzle height selection station continuously, or the nozzle height should not be at the lowermost position. And an up / down switching abnormal number memory storing the number of up / down switching abnormalities set for automatically skipping the suction nozzle (14) determined from the detection output of the detection sensor (154), and an up / down counting the number of continuous up / down switching abnormalities. A switching abnormality counter is provided for each nozzle number for each head number. The counter is also cleared unless it fails continuously. Abnormality of up / down switching is detected when the nozzle height detection sensor (154) is shielded from light as described above. At this time, the up / down switching abnormality counter is incremented by "1".
The operation from the next stop station is not performed. However, as long as the set number of automatic skips is not reached, the operation from the nozzle selection station by the next suction nozzle (14) is performed.

Further, the mounting head (15) which cannot return to the origin at the nozzle selection station continuously during the automatic operation.
The head home return error counter “2” for automatically skipping the head is fixed (cannot be set by the user) and stored, and a head home return error counter for counting the continuous home return error count is provided for each head number. Is provided. When the transmitted light sensor (126) detects the slit (123) and outputs "OFF" from the proximity sensor (124), the nozzle position identification sensor (113) does not detect the nozzle number to be detected. In this case, it is determined that the home position return is abnormal. The transmitted light sensor (126) has the slit (1).
23) is also determined to be an origin return abnormality.

Further, the nozzle selection station, the suction correction station, and the rotation return station are continuously performed during the automatic operation.
Bit (66) at station and nozzle selection station
When the proximity sensor (124) is "OFF" even when the lever is lowered by the rocking of the rocking lever (72), the number of bit lowering abnormalities "2" for automatically skipping the mounting head (15) is fixed. A bit descending number counter for counting the number of successive bit descending abnormalities is provided for each head number. Here, "continuously" means only when the swing lever (72) is to be swung to be lowered, and is not to be lowered once in any station. Then, the second counting is performed when the sensor (124) is "OFF" at the nozzle selection station since the nozzle selection station does not attempt to descend to the next nozzle selection station. The skipping of the mounting head (15) means that the head (15) does not perform operations relating to removal and mounting of the chip component (5).

The RAM (172) further includes a component absence counter for counting the number of times that the component absence detection is detected by the component presence / absence detection sensor (113), and a component posture detection sensor (11).
A component standing counter for counting the number of times the component standing is detected by 9); a recognized component absence counter for counting the number of times that the chip component (5) is recognized as not being sucked by the component recognizing device (16); Recognition abnormality counters are provided for each nozzle number for each head number, for counting the number of times that the recognition device (16) has determined that the component has been recognized as being unrecognizable. In addition, a suction abnormality counter that stores the total value of a component absence counter, a component standing counter, a recognition component absence counter, and a recognition abnormality counter is provided, and a nozzle usage counter that counts the cumulative number of times component suction has been performed is provided. It is provided for each nozzle number for each head number, and the suction rate up to now can be calculated for each nozzle number based on the ratio of both counters. Further, an up / down switching abnormality accumulation counter for counting the cumulative number of up / down switching abnormalities is provided for each nozzle number for each head number.
The component absence counter, component standing counter, recognition component absence counter, recognition error counter, suction error counter, nozzle use counter, and up / down switching error accumulation counter are the nozzle abnormal suction counter, nozzle suction counter, and nozzle skip abnormal suction described above. It is not cleared when the number counter and the nozzle skip suction number counter are cleared, but is cleared by pressing a key formed at a predetermined position of a touch panel switch (186) on a screen (not shown) of the CRT (187). .

The RAM (172) further stores a cumulative reel abnormal suction frequency counter for counting the cumulative number of suction abnormalities of the chip component (5) for each reel number, and a cumulative number of chip components (5) for each reel number. A cumulative suction number counter for counting is provided, and the suction rate up to now can be calculated for each reel number based on the ratio of the two counters. The cumulative reel abnormal suction frequency counter and the cumulative suction frequency counter are not cleared by clearing the reel abnormal suction frequency counter and the reel suction frequency counter.
The key is cleared by pressing a key formed at a predetermined position of a touch panel switch (186) on a screen (not shown) of T (187).

The RAM (172) is further provided with a memory for listing nozzles having a reduced suction rate. The memory has five head numbers and nozzle numbers of suction nozzles (14) having a reduced suction rate in ascending order. In addition, a memory for listing reels having a reduced suction rate is provided, and five reel numbers having a reduced suction rate are stored in ascending order of the reel numbers. As shown in FIG. 32, the suction rate reduction nozzle list memory displays the nozzle numbers on the screen of the CRT (187) and the suction rate for each head number and nozzle number calculated from the suction abnormality counter and the nozzle usage counter. The CPU (170) searches and stores five of the worst ones. Similarly, when the reel number is displayed on the CRT (187) screen in the memory for the list of reels having a reduced suction rate, the reel having a poor suction rate for each reel number calculated from the cumulative reel abnormal suction number counter and the cumulative suction number counter 5
The CPU (170) searches for and stores them. In this embodiment, the data once stored in this manner is not changed during the screen display, but is always stored while replacing the worst data so that the screen display is changed according to the actual state. You may.

The RAM (172) further stores a guide cycle number set for notifying the number of printed circuit boards (6) on which the mounting of the chip parts (5) has been completed, that is, the finished number, for each designated number. A finish number memory and a production finish number counter for counting the finished substrates (6) are provided. The counter is cleared by the user's operation on the screen shown in FIG. 33, and is cleared by the CPU (170) for each number stored in the production finished number memory. Also, a production finish number accumulation counter which is cleared at the same time as the user clears the production finish number counter and is not cleared when the production finish number counter reaches the number of the production finish number memory is provided. (170) can display device information as shown in FIG. 34 on the screen of the CRT (187).

The RAM (172) is further provided with a nozzle use count memory for notifying the designated use count of the suction nozzle (14), and when the nozzle use count counter reaches the number of times of the nozzle use count memory. CPU (1
70) reports the number of times of use.

The RAM (172) is further provided with an elapsed time memory for storing the elapsed time to be designated for notifying the elapsed time every time the designated time for automatic operation has elapsed.
The U (170) and the RAM (172) form a period timer that is cleared each time the elapsed time memory elapses and an elapsed timer that counts the accumulated time. The period timer and the elapsed timer are simultaneously cleared by the user on the screen shown in FIG. Therefore, a screen indicating the elapse of time can be displayed each time the time in the elapsed time memory elapses.

The contents of the memory and the counter described above are backed up even when the power is turned off, and are retained even when the power is turned on again.

The operation of the above configuration will be described below.

First, when a power switch (not shown) is pressed to turn on the electronic component automatic placement apparatus, an initial screen as shown in FIG. 36 is displayed on the CRT (187).

The operation of setting various parameters will be described below.

When the user presses a switch section labeled "DATA EDIT" surrounded by a double frame on the initial screen, a data edit screen shown in FIG. 37 is displayed. When the “operating parameter” switch section is pressed on this screen, the operating parameter screen shown in FIG. 38 is displayed.

On the operation parameter screen, press the switch on the right side of the display of “number of continuous abnormalities” in the table of “automatic nozzle skip”, and then press the “3” of the numeric key switch at the lower right of the screen.
Key-in, "Continuous abnormal frequency:" and "3 times" are displayed as shown in the lower left frame of the screen, and "Setting"
Pressing the setting key, which is the switch section displayed
“3” is stored in the continuous suction abnormality count memory in M (172), and “3 times” is displayed in the switch section on the right side of the display of “continuous abnormality count” in the table of “automatic nozzle skip”. You.

Next, on the same screen, press the "absorption rate" switch section of "absorption rate", similarly key in "1234" and press the set key. When the "suction count" switch unit is pressed and "4321" is keyed in and the setting key is pressed, the nozzle skip suction for automatically skipping the suction nozzle (14) is similarly stored in the nozzle skip suction count memory. The rate is set.

Next, when the switch section of "continuous up / down switching abnormality" is pressed, "3" is keyed in and the setting key is pressed, the up / down switching abnormality number memory is stored.

Next, when the switch section of the same screen where "Page Forward" is displayed is pressed, the screen of FIG. 39 is displayed, and the switch section of "Number of abnormalities" of "Reel warning suction rate" is pressed.
When "234" is keyed in and the set key is pressed, "234" is stored in the reel abnormal suction count memory. Press the "Suction count" switch section below the screen, and select "123
When "4" is keyed in and the setting key is pressed, "1234" is stored in the reel suction count memory, and the reel warning suction rate is set.

Next, on the same screen, press the “Nozzle warning suction rate” “Abnormal number of times” switch section, key in “123”, and press the set key. “123” is stored in the nozzle abnormal suction number memory. It is memorized. When the "suction count" switch section below the screen is pressed, "321" is keyed in and the setting key is pressed, and "321" is stored in the nozzle suction count memory.
Is stored, and the nozzle warning suction rate is set. still,
The values set in the nozzle skip abnormal suction frequency memory, the nozzle skip suction frequency memory, the nozzle abnormal suction frequency memory, the nozzle suction frequency memory, etc. are for explanation only, and the operator may adjust the situation as appropriate. The smaller the value set in the nozzle skipping suction number memory or the nozzle suctioning number memory serving as the denominator, the better the response and the lower the suction rate during the smaller number. In particular, if the setting of the nozzle suction count memory is set small, a warning can be issued in response to a small number of deteriorations in the suction rate.

Next, when the “page feed” switch section of the screen is pressed, the screen of FIG. 40 is displayed, and “guide” on the right side of “function selection” of “substrate finishing guide” is displayed. When the user presses the switch, the user can set whether or not to select the function of “substrate finish guidance”. Here, the switch unit (197) displayed as "Guiding"
By pressing, a function is selected and displayed in the lower left frame of the screen as shown in FIG. After that, when the setting key is pressed, the display of the switch section of "guide" on the right side of "function selection" of "substrate finish guide" remains "guide" and the function is set. You. Here, when the switch section (198) displayed as "do not guide" is pressed, the function is not selected, but the switch section (197) is pressed to select the function of "functional finish guidance".
Then, when the switch on the right side of the “guide period” of the “substrate finishing guide” is pressed, the numeric keys shown in FIG. 38 are displayed instead of the switches (197) and (198),
When "300" is keyed in, "300" is displayed, and the setting key is pressed, "300" is stored in the production finished number memory.

Next, the switch unit on the right side of "Function selection" of "Automatic driving guidance" on the same screen is set to "Guidance" in the same manner, and the "Guidance time" thereunder is similarly set to "400 hours". When the setting key is pressed, "400" is stored in the elapsed time memory.

Next, the “function selection” of the “nozzle use guidance” on the same screen is set to “guide”, and the “number of guidance” is set to “10”.
000 times "and" 10000 "are stored in the nozzle use number memory.

In the above setting operation, if the display of each switch section is to be set, it is not necessary to perform the setting operation of that portion.

Next, when the "screen return" switch section is pressed on the screen of FIG. 40, the screen returns to the screen of FIG. 37, and when the "initial screen" switch section is pressed on the screen, the initial screen of FIG. 36 is displayed. Return.

Next, the automatic operation for mounting the chip component (5) is started.

First, the production finish sheet number counter and the cycle time timer are cleared as follows.

In the initial screen shown in FIG.
Pressing the switch section of FIG. 42 brings up the screen of “Production Operation” in FIG. 41, and pressing the switch section of “Submenu” displays the screen of FIG.
Screen. When the switch section of "guidance information" is pressed on the screen, the screen of FIG. 33 is displayed, and the switch section of "board finish guide" is pressed, and the switch section of "erase" is pressed. And the production finish number accumulation counter is cleared, and the display of the total value of the item becomes “0”. Then, when the switch section of “Automatic driving guidance” is pressed on the same screen and the switch section of “Erase” is pressed, the period time timer and the elapsed timer are set to “0”, and the display of the total value of the item is set to “0”. ". In addition, in the display of the total value, in the “board finish guidance”, the value of the production finish number accumulation counter is displayed, and in the “automatic operation guidance”,
The value of the elapsed timer is displayed. Further, when the display of the total value of the item is “0”, such an operation is not necessary.

Next, the switch of "Return to screen" is pushed to return to FIG. 42, and the switch of "Production operation" is pushed, and FIG.
Screen, and the start key (181) of the operation unit (180)
Pressing starts automatic operation of mounting the chip component (5).

First, the operation of determining the head number is performed.

That is, when the turntable (13) is stopped, the sensor (200) is in the "light-in" state, and the sensors (201), (202), (203), and (204) are in the "light-shielded" state.
Assuming that the state is output, the CPU (17
0) judges that the head number of the mounting head (15) stopped at the nozzle selection station is "1". Therefore, "2", "3",... In the clockwise direction of FIG.
And the mounting head (1) stopped at each stop station.
The head number of 5) is determined and stored in the RAM (172), and thereafter, the state of the head number is grasped every time the turntable (13) rotates intermittently.

Next, a nozzle number indexing operation is performed.

That is, with respect to the mounting head (15) of the head number "1" currently stopped at the nozzle selection station, the rotation of the cam (81) causes the lever (79) and the rod (77) to move through the lever (79). 72) rotates clockwise in FIG. 8, and the elevating member (68), that is, the bit (66) is lowered. Bit (66) goes down and motor (69)
Is rotated through the gears (70) and (71), and is fitted into the fitted groove (52) to rotate the rotating body (40). Some slit (1) by rotation of disk (122)
When the transmitted light sensor (126) detects the transmitted light sensor (23), the CPU (170) stops the motor (69) based on the output, and the sensor (S) of the nozzle position identification sensor (113) is stopped.
1) Capture the outputs of (S2) and (S3). At this time, FIG.
7 (S1) (S2)
If the outputs of (S3) are all "0", the nozzle number "1"
It is determined that the suction nozzle (14) has stopped at the position where it will be used, and is stored in the RAM (172). Next, when the turntable (13) is rotated intermittently and the mounting head (15) with the head number "2" stops at the nozzle selection station, the detection and storage of the nozzle number are performed in the same manner.

Next, when the mounting head (15) with the head number "3" stops at the nozzle selection station due to the rotation of the turntable (13), the sensor (126) detects the slit (123). If not, the head origin return abnormality number counter of the head number "3" counts "1", the turntable (13) rotates intermittently, and the mounting head (15) of the head number "4" is similarly checked. . When the nozzle number detection is completed for all the mounting heads (15) up to the head number "24" in this way, the mounting head (15) with the head number "3" is checked again in the same manner. (12
If 6) cannot detect the slit (123), the head origin return error counter is incremented by "1" to "2". Then, the CPU (170) performs the automatic skip of the head number “3” in the RAM (172) because the number of abnormalities “2” for automatically skipping the mounting head (15) stored in the RAM (172) is matched. Remember. At the same time, the notification of the automatic skip appears in red on the screen of the CRT (187) as shown in FIG. At this time, it is assumed that the environment is set by the user so that the notification by the tower light (185) and the buzzer (189) is not performed. When a notification is desired, the user may set an environment on a screen (not shown) so that some notification is performed.

Next, the CPU (170) automatically operates the component mounting on the printed circuit board (6) on the XY table (3) according to the NC data of FIG. 28 which is for the printed circuit board (6) to be produced. To start.

First, the reel number "050" of the step number "001" is read, it is determined that the component type "B1" is to be suctioned from the part data of FIG. 30, and the suction nozzle used is determined from the part library data of FIG. It is read that the nozzle type of (14) is "N1". Assuming that the head number of the mounting head (15) currently stopped at the nozzle selection station is "1" from the nozzle data of FIG. 31, the CPU (170) determines the suction nozzle (14) of the nozzle number "2". ) Is to be used, and the station is operated to select the suction nozzle (14). That is, since the nozzle number "1" is currently selected in the mounting head (15) having the head number "1", the bit (66) is set at the position where the sensor (126) detects the slit (123). The motor (69) is rotated in the direction in which the nozzle number "1" is selected by lowering it and confirming that the proximity sensor (124) is "ON". Here, the sensor (126) is connected to the slit (12).
3) is detected, the nozzle number is determined by the nozzle position identification sensor (113) in the same manner as described above, and the output of the sensors (S1), (S2), and (S3) is "0".
Confirm that they are "0" and "1". If this is the case, it is determined that nozzle number “2” has been selected. Here, if a different output is detected, the head origin return abnormality number counter counts "1" as an origin return abnormality. In this case, the nozzle number "2" is selected and the counter remains "0". Shall be.

When the suction nozzle (14) is selected in this way, the mounting head (15) reaches the nozzle in / out station due to the intermittent rotation of the turntable (13).
As shown in FIG. 10, when the head (15) is lowered, all the suction nozzles (14) of the head (15) are pushed into the storage position by the first abutment table (20), and the lower engagement claws (48) are pressed. ) Is locked by the locking claw (45),
The locking claw (45) of the suction nozzle (14) to be used is rotated counterclockwise in FIG. 10 by turning the lever (44) on which the locking claw (45) is formed. Since it is swung clockwise by the movement and does not engage with the lower engagement claw (48), it is projected by the spring (41) by the rise of the mounting head (15) to the lowermost position.

Next, the mounting head (15) moves to the nozzle height selection station. The component type to be mounted is "B
1 ", the nozzle height" L "is read from the parts library data of FIG. 29, and the CPU (170) operates the solenoid (100) and locks the clutch lever (98) with the lever (95). The suction nozzle (14) is kept at the lowermost position without lowering the mounting head (15).

At this time, the nozzle height detection sensor (15
4) If light is blocked, it is determined that the light is normal. If it is in the light-transmitting state, it is determined that the up / down switching is abnormal, and the up / down switching abnormality counter counts “1”. And

Next, when the mounting head (15) reaches the suction correction station, the suction nozzle (14) (nozzle number "2") located at the outermost position when viewed from the rotation center of the turntable (13). Is rotated 90 degrees clockwise in FIG. 2 in the same manner as in the nozzle selection station.

Next, when the head (15) reaches the suction station, the supply table (7) is rotated by the ball screw (10) by the rotation of the supply table drive motor (9), and the supply table (7) is moved to the linear guide (12). To stop the component supply device (8) with the reel number "50" at the component suction position of the suction nozzle (14) to be used in the suction station. And
The suction nozzle (14) is lowered by the lowering of the mounting head (15) to suck and take out the chip component (5) of the component type "B1". The component thickness "T1" of the chip component (5) of the component type "B1" is thin, and the suction nozzle (14) is at a sufficiently high position even at the lowermost position, so that the descending stroke can be reduced.

At the station, the reel number "5"
The reel suction counter of “0”, the nozzle suction counter of the nozzle number “2” of the head number “1”, the nozzle skip counter of the nozzle skip of the same nozzle number, and the nozzle usage counter of the same nozzle number respectively indicate “1”. Count.

Next, when the mounting head (15) reaches the component attitude detection station, the component presence / absence detection sensor (11) at the position corresponding to the suction nozzle (14) at the lowermost position.
3) and the presence / absence of the chip component (5) and the presence / absence of the component are detected by the component attitude detection sensor (119). If both are not present, it is determined to be normal.

Next, when the recognition stage is reached, the presence / absence of the chip component (5) and the displacement of the component (5) with respect to the suction nozzle (14) are recognized by the component recognition device (16). It is assumed that the chip component (5) has been sucked and a certain amount of displacement has been recognized.

Next, when the mounting head (15) reaches the angle correction station, the deviation in the θ direction among the positional deviations is corrected. That is, in accordance with the rotation angle position (stored in the RAM (172)) of the fitted groove (52) due to the rotation of the rotating body (40) in the suction correction station.
Bit (66) is an angle correction motor (178)
After rotating by the rotation of the rod (77), the bit (66) is inserted into the fitted groove (52) by the lowering of the elevating member (68) through the swing of the swing lever (72) by the upward movement of the rod (77). )
Are fitted. After that, the angular deviation recognized by the component recognition device (16) is corrected so that the motor (178) rotates and the chip component (5) rotates by "θ1" of the step number "001" of the NC data. Rotated. The corrected rotation angle amount is stored in the RAM (172).

Next, when the mounting head (15) reaches the mounting station, an X-axis motor (2) and a Y-axis motor are added by adding a correction amount for correcting the positional deviation recognized by the component recognition device (16). (4) is rotated, and X tables (1) and X
The Y table (3) moves, and (X) on the printed circuit board (6) moves.
The chip component (5) is located at the position of (1, Y1) with the mounting head (1).
It is mounted by lowering the suction nozzle (14) through 5).

The above is the mounting head (1) of the head number “1”.
Although the operation up to the mounting station 5) has been described, the mounting head (15) of the head number "2" is next to the mounting head (15) of the head number "1" due to the intermittent rotation of the turntable (13). The CPU (170) should read the step number "002" of the NC data as in the case of the head number "1" and select the nozzle number "3" from the reel number "20" as in the case of the head number "1". Judge that. The nozzle selection device (19) selects the suction nozzle (14) having the nozzle number "3" in the same manner as described above, but the suction nozzle (14) having the nozzle number "3" is actually the nozzle data (nozzle data) shown in FIG. It is assumed that a type different from "N3") is attached.

Next, the head (15) reaches the suction station through the nozzle in / out station, the nozzle height station, and the suction correction station, but the type of the suction nozzle (14) is different. Therefore, it is assumed that the chip component (5) of the component type “B3” supplied by the component supply device (8) of the reel number “20” cannot be suctioned.

Next, in the component posture detection station, the absence of the chip component (5) is detected by the component presence / absence detection sensor (116), and a continuous suction abnormality frequency counter for the nozzle number "3" of the head number "2" is obtained. Other counters related to the above-described suction, such as the component absence counter and the reel abnormal suction number counter of the reel number “20”, count “1”. Thereafter, the operation at each station until the nozzle selection station of the head number "2" is reached is not performed.

Next, the mounting head (1) of the head number "3"
Regarding 5), no operation is performed in all stations because the automatic skip of the head number “3” is stored in the RAM (172).

Next, for the head numbers "4" to "7", there is no abnormality and the NC data "003" to "006"
The mounting operation of the chip component (5) to the printed board (6) is performed.

Next, the operation from the nozzle selection station is performed for the head number "8", and the component (5) is supplied from the reel number "035" for the step number "007" of the NC data. In the same manner as described above, the suction nozzle (14) with the nozzle number "2" is selected. Nozzle number “2” with nozzle type “N11”
The tip of the suction nozzle (14) is worn out, and the chip part (5) is removed at the suction station by the suction station (14).
When the part is picked up in the standing state, the part posture is detected by the part posture detecting sensor (119) in the part posture detecting station. Then, the continuous suction abnormality number counter of the nozzle number "2" of the head number "8", the component standing counter, and the counter relating to the suction described above are counted by "1". The operation of the mounting head (15) with the head number "8" at each station is performed by a chip component (5) at a station (not shown) until a nozzle selection station.
This operation is not performed except for the discharging operation.

Next, the component mounting operation is similarly performed for the mounting heads (15) after the head number "9", and the heads having the normal operation up to the head number "24" and the next head number "1" are assumed. I do. Accordingly, only the counter for counting the number of times of suction described above is counted, and the counter for counting abnormal suction is the same as described above.

Next, when the suction nozzle (14) of the nozzle number "3" of the head number "2" is selected again, when the suction nozzle (14) reaches the suction station, the chip component (5) is selected. ) Cannot be adsorbed. Then, the continuous suction abnormality number counter and the no-parts counter of the nozzle number “3” of the head number “2” are incremented by “1” to “2”, and the other related counters are also incremented by “1”. .

Next, the mounting head (1) with the head number "3"
5) is automatically skipped and head numbers "4" to "7"
The mounting head (15) performs the component mounting operation normally.

Next, the mounting head (1) with the head number "8"
When the suction nozzle (14) with the nozzle number "2" of 5) is selected and the chip component (5) is normally sucked at the suction station, the nozzle number "2" of the head number "8" continues. The suction abnormality counter is cleared to “0”. However, the counter of the number that counts the number of suctions regardless of the abnormality is incremented by “1”, and the counter that counts the number of suctions of other abnormalities holds the count value.

Next, the suction nozzle (14) of the nozzle number "3" of the head number "2" is selected again, and if the suction of the chip component (5) cannot be performed, the continuous suction abnormality number counter of the nozzle (14) is used. Becomes "3", which is the same as the number stored in the continuous suction abnormality number memory.
(170) stores the automatic skip of the head number “2” and the nozzle number “3” in the RAM (172). CRT (1
In 87), a display of nozzle automatic skip is added in red characters as shown in FIG.

Next, the operation is performed as described above up to the head number "7", the nozzle number "2" is selected for the head number "8", and the chip part (5) is suctioned in the suction state at the suction station. Then, the standing of the component is detected by the component posture detecting sensor (119) in the component posture detecting station. Then, the nozzle abnormal suction frequency counter, the nozzle suction frequency counter, the nozzle skip abnormal suction frequency counter, and the nozzle skip suction frequency counter are incremented by "1", and the continuous suction abnormal frequency counter is also counted by "1".

Next, the above operation is repeated, and the suction nozzle (1) of the nozzle number "2" of the head number "8"
Although the continuous suction abnormality number counter does not become “3” due to the suction state of 4), the nozzle abnormal suction number counter sets the nozzle abnormal suction number counter before the nozzle suction number counter counts “321” stored in the nozzle suction number memory. When counting "123" stored in the number memory, the CPU (170) determines that the nozzle warning suction rate has been reached, the yellow portion of the tower light (185) flashes, and the buzzer (186) sounds, The CRT (187) is used as a warning screen indicating "deterioration of the adsorption rate" as shown in FIG. The color of the warning is displayed in yellow. When the abnormal nozzle suction counter becomes “123”, the counter and the nozzle suction counter are cleared. The user knows that a warning has been issued by the buzzer (186) and the tower light (185), comes to the electronic component automatic placement device, and presses the alarm release key (195) on the screen of the CRT (187). , The tower light (185) and the buzzer (186) are released, but the screen remains as it is, and the user can confirm the contents of the warning. The user may stop the apparatus and check the suction nozzle (14) for the content of the warning on this screen. However, if there is something else to do or the component mounting operation is not desired to be stopped, the operation is left as it is. . When the return key (183) is pressed in this state, C
The screen of RT (187) is a screen indicating that the automatic operation is being performed as shown in FIG.

The suction nozzle (14) with the head number "8" and the nozzle number "2" has not been treated, so that the standing state frequently occurs after that, and the continuous suction abnormality frequency counter indicates "3". If not counted, CR
Although a warning is issued on the screen of T (187), before the nozzle skip suction number counter counts “4321” stored in the nozzle skip suction number memory, the nozzle skip abnormal suction number counter sets the nozzle skip suction counter. When counting “1234” stored in the abnormal suction count memory, the CPU (170) determines that the suction nozzle (14) should be automatically skipped, and stores the nozzle number “8” of the head number “8” in the RAM (172). The automatic skip of "2" is stored. In addition, the fact that the nozzle has been automatically skipped is displayed in red on the CRT (187) in the same manner as described above. In the case of this display, since the display contents up to FIG. 35 have already been cleared, only the fact that the automatic skip of this nozzle has occurred is displayed.

During this time, for the suction nozzle (14) for which the chip component (5) is normally suctioned and mounted, the nozzle suction frequency counter, the nozzle skip suction frequency counter, the nozzle use frequency counter, and the cumulative suction frequency counter Only each is counted for each suction operation. Even if a suction error occurs on the way and is counted by the nozzle abnormal suction frequency counter or the like, the same suction nozzle (14) does not continuously perform suction error, and the nozzle abnormal suction frequency counter is stored in the nozzle abnormal suction frequency memory. If the nozzle suction count counter counts “321” stored in the nozzle suction count memory before counting “123”, the nozzle abnormal suction count counter and the nozzle suction count counter are cleared, and the counting is repeated. Become.

Next, if the position of the chip component (5) supplied by the component supply device (8) of the reel number "101" is bad,
When the chip component (5) is taken out from the component supply device (8) of the reel number, it may not be sucked by the suction nozzle (14), and no component or standing of the component is detected in the component posture detection station. Then, the counting by the counter corresponding to the suction nozzle (14) is also performed, but the reel abnormal suction number counter and the reel suction number counter of the reel number "101" are each advanced by "1" (accumulated reel abnormal suction). The number counter is also incremented by "1".) In this manner, the chip component (5) is taken out from the reel number “101”, and every time a suction error is detected, the reel abnormal suction number counter and the reel suction number counter of the reel number “101” are set to “1”. When the reel abnormal suction frequency counter counts “123” stored in the reel abnormal suction frequency memory before the reel suction frequency counter counts “321” stored in the reel suction frequency memory, Is cleared and the reel number "10" is displayed on the screen of the CRT (187).
It is notified that the adsorption rate of “1” has deteriorated, and a notification is also made by a tower light (185) and a buzzer (189).

Next, when the mounting head (15) with the head number "10" reaches the nozzle selection station, the bit (66) is about to drop and if the proximity sensor (124) cannot detect the drop, the bit The descent abnormality counter counts “1”. Thereafter, the head (15) is not used until the next nozzle selection station is reached. Next, when the sensor (124) does not detect a drop in the bit (66) again when the nozzle selection station is reached, the bit descent abnormality counter is incremented by "1" to "2". Since the number of bit lowering abnormalities "2" for automatically skipping the mounting head (15) stored in the RAM (172) matches the automatic skipping of the mounting head (15) having the head number "10", the RAM (172). At the same time, a head skip similar to that described above is reported on the CRT (187) in red characters.

During this operation, the CPU (17) changes the step number in which the column “C” of the NC data in FIG. 28 is “E”.
0) is read out, the completion of the component mounting on the printed circuit board (6) is determined, and after the component mounting of the step number is completed, the substrate (6) is placed on the XY table (3) by a discharge device (not shown). Is more exhausted. At this time, the production finished number counter and the production finished number accumulation counter are incremented by "1", and the next printed circuit board (6) is carried in, and each time the mounting of the chip component (5) on the substrate (6) is completed. Both counters are incremented by "1". Next, when the mounting head (15) with the head number "5" arrives at the nozzle selection station at the step number "008" of some of the printed circuit boards (5), the component type of the reel number "106" From "B2", it is found that the nozzle type is "N4" and the nozzle number is "4", and the operation of selecting the suction nozzle (14) is performed. When the mounting head (15) reaches the nozzle in / out station, the suction nozzle (14) having the nozzle number "4" is protruded as described above. Since the nozzle height data of No. 29 is "H", the solenoid (100)
The clutch lever (98) is disengaged by the operation of the cam (9).
By the rotation of 7), the elevating block (159) descends and the mounting head (15) descends, and the suction nozzle (14) moves to the second position.
And is pushed into the intermediate position. At this time, if the locking claw (45) cannot lock the suction nozzle (14) due to, for example, a lack of the upper engagement claw (47) (see FIG. 14), the rotation of the cam (97) is performed thereafter. When the mounting head (15) rises, the suction nozzle (14) projects to the lowermost position. Since the nozzle height detection sensor (154) is shielded from light, it is determined that the up / down switching has failed, and the up / down switching abnormal number counter and the up / down switching abnormality counter of the nozzle number “4” of the head number “5” are respectively set to “1”. Is counted.

Next, the suction nozzle (14) having the nozzle number "4" with the head number "5" is used.
Similarly, when an abnormality of the up / down switching is detected, the counters are respectively advanced by “1” to “2”, and when the suction nozzle (14) is used again,
When the abnormality is detected, both counters become "3", and coincide with the numerical value stored in the memory for the number of abnormalities of up / down switching.
Is stored. In addition, a notification of nozzle skip similar to that described above is made in red characters on the CRT (187).

Next, it is assumed that the suction nozzle (14) of the nozzle number "5" of the head number "8" is clogged and the suction force is reduced. In the suction station, the chip component (5) is sucked in a normal state and the component posture detection station detects that the chip component is in a normal state. ), The nozzle abnormal suction counter, the nozzle suction counter, the continuous suction abnormal counter, the nozzle skip abnormal suction counter, the nozzle skip suction counter, the reel abnormal suction counter, and the reel suction counter The counter is counted by the suction abnormality counter and the nozzle use counter in the same manner as described above. However, when detected by the component attitude counting station, it is also counted by the component absence counter or the component standing counter. It is counted by the recognition component absence counter. Thereafter, when the suction nozzle (14) is used again to suck the chip component (5), the position of the chip component (5) is shifted with respect to the suction nozzle (14), and one side of the chip component (5) is shifted. When the two corners are hidden by the suction nozzle (14) and cannot be recognized by the component recognition device (16), they are counted not by the recognition component absence counter, the component absence counter, and the component standing counter but by the recognition abnormality counter as described above. It is counted by other relevant counters.

Next, when the suction nozzle (14) of the nozzle number "5" of the head number "8" is used, the chip component (5) is normally sucked, and the component posture detection stage is performed.
If no abnormality is detected in the station and the recognition station, the continuous suction abnormality number counter is cleared. The use of the suction nozzle (14) does not cause a suction error three times in a row. However, before the nozzle suction frequency counter reaches “321” due to frequent errors, the nozzle abnormal suction frequency counter sets “123”. When the counting is performed, the fact that the suction rate of the suction nozzle (14) of the nozzle number "5" of the head number "8" is deteriorated is displayed on the screen of the CRT (187), and the tower lamp (185) and The user is notified by the buzzer (189). At this time, when the user operates the CRT (187) (not shown) to manually skip the suction nozzle (14), the R
Nozzle number “5” with head number “8” in AM (172)
Of the suction nozzle (14) is stored.

Next, the component mounting operation is repeated as described above, and as described above, each time the printed circuit board (6) is finished, the production finished number counter and the production finished number accumulation counter count the finished number. When the 300 sheets stored in the memory are finished, a guide to the completion of the 300 sheets is displayed as shown in FIG. At the time of this guidance display, the user can know that the guidance display has been performed by the notification of the tower light (185) and the buzzer (189) different from the case of the decrease in the adsorption rate. For example, the display of the tower light (185) may be such that the green portion is lit, and the interval of the intermittent sound of the buzzer (189) may be longer than in the case of a decrease in the suction rate. ) Is set on the screen. The user arrives at the electronic component mounting apparatus by this notification, presses the alarm release key (195) of FIG. 34 to stop the alarm of the tower light (185) and the buzzer (189), and returns after checking the screen of FIG. Key (18
3) Press to return the CRT (187) to the screen of FIG. The production finish number counter is cleared when "300" is counted, but the production finish number accumulation counter is not cleared. Thereafter, it is counted every time the printed circuit board (6) is finished, and the production finish number counter counts "300". When the number matches the production finished number memory, the production finished number accumulation counter "600" notifies that 600 sheets have been finished in the same manner as in the case of 300 sheets.

Next, during the automatic operation in which the screen of the CRT (187) is in the state shown in FIG. 54, the skipping state of each mounting head (15) and suction nozzle (14) is displayed by the user. If you want to know, you can know its contents as follows.

That is, when the switch section of the "submenu" in FIG. 54 is first pressed, a screen in which the display of "stop" in FIG. 42 is changed to "running" is displayed, and the switch section of "production management information" is displayed. By pressing, the screen shown in FIG. 55 is displayed.

Next, the screen shown in FIG. 27 is displayed by pressing the switch of “head / nozzle skip information” on the screen. On the screen, small circles of 24 double lines arranged on the outer periphery of the large circle respectively correspond to the mounting heads (15), and the numbers in the great circles indicate the head numbers corresponding to the respective small circles. I have. In FIG. 27, the hatched small circles are actually displayed in yellow and indicate that there is a nozzle skip in the mounting head (15) of the corresponding head number, as described above. Suction nozzle (14)
The skip is shown. In FIG. 27, the small circles with a hatched line are actually displayed in red, indicating that the mounting head (15) of the corresponding head number is skipped. The inside of the small circle corresponding to the mounting head (15) in operation is colored white. The small circle of each double line is a switch, and when the switch of the head number “8” on the screen is pressed, the CRT is displayed.
As shown in FIG. 56, the screen of (187) displays nozzle skip information, and indicates that nozzle number “2” is skipped due to a decrease in suction rate and nozzle number “5” is manually skipped. Recognize. For the manual skip described above, use the “Manual nozzle skip setting” on this screen.
Is set on a setting screen (not shown) which is displayed by pressing the switch section of the.

Next, by pressing the switch of "Nozzle 2" on the screen of FIG. 56, the contents of each counter indicating the nozzle operation information of the nozzle number "2" for which automatic nozzle skip has been performed are as shown in FIG. Is displayed. Pressing the “page feed” switch in FIG. 57 causes the nozzle number “2”
The contents of other nozzle operation information are shown in FIG. Pressing the “page return” switch on the screen of FIG. 58 returns to the screen of FIG. 57, and pressing the “screen return” switch returns to FIGS. 56 and 27.

Next, the head number "1" is displayed on the screen shown in FIG.
When the "0" switch is pressed, a screen corresponding to FIG. 56 without a skip display is displayed. By pressing the "page feed" switch, the screen of FIG. It can be seen that the head is skipped due to the abnormality. Pressing the "screen return" switch on this screen returns to the screen of FIG. 27. However, in the screen of FIG. 27, even if the switch of the operating head number is pressed, the screen of FIG. 56, FIG. 57, and FIG. And a screen corresponding to FIG. 59 can be displayed.

Next, when the switch of “Return to screen” is pressed on the screen of FIG. 27, the screen of FIG. 55 is displayed.
Calculates the non-sucking rate by dividing the value of the suction abnormality counter by the value of the nozzle use counter for each head number and nozzle number, except for the head skip or nozzle skip at this time. The head number and the nozzle number with the largest number of unsucked parts are stored in the memory for the nozzle list with the reduced suction rate, the second to fifth bad nozzles are further stored, and the contents of the memory are displayed on the CRT (187). . Further, the non-sucking rate is calculated by dividing the value of the cumulative reel abnormal suction number counter by the value of the cumulative suction number counter for each reel number, and the reel number having the largest non-sucking rate is stored in the memory for the reel list with the reduced suction rate. Memorize and memorize the second to fifth bad things,
The contents of the memory are displayed on the CRT (187), and the screen of FIG. 32 is displayed. Select "R10
The type of the chip component (5) supplied by the component supply device (8) of the reel number together with the reel number displayed as "1" or the like is shown in the parentheses. The nozzle type of the suction nozzle (14) is shown in parentheses together with the head number and the nozzle number in the suction rate reduction nozzle list. Pressing each switch in the suction rate lowering nozzle list on this screen displays the respective values of the suction abnormality counter and the nozzle usage counter similar to FIG. 57, the non-suction rate calculated from these values, and the component-less counter.
The respective values of the component standing counter, the no recognition component counter, and the suction abnormality counter are displayed. Also, as shown in FIG. 58, the current total value of the values of the nozzle abnormal suction frequency counter and the nozzle suction frequency counter is the nozzle warning suction rate. In the column, the current total value of the values of the nozzle skip abnormal suction counter and the nozzle skip suction counter is displayed in the automatic nozzle skip suction rate column. A screen (not shown) in which the respective values of the cumulative suction number counter and the cumulative reel abnormal suction number counter and the respective values of the reel abnormal suction number counter and the reel suction number counter are displayed by pressing the respective switches in the suction rate lowering reel list. Becomes The user can grasp the worst suction rate state of each suction nozzle (14) and each component supply device (8) from the information displayed on the screen, and the other suction nozzles (14) Since the component supply device (8) is found to be better than these, it is displayed, and if there is no problem, it can be determined that there is no problem as a whole.

Note that the screens of FIGS. 27 and 32 can be displayed from the screens of FIG. 55 in which the operation is stopped in the screen of FIG. 55 from the screens of FIGS. 41 and 42 even when the automatic operation is stopped. .

Next, when the automatic operation is continued and the mounting head (15) of the head number "1" reaches the nozzle selection station, the suction nozzle (14) of the nozzle number "2" of the mounting head (15) is reached. ) Is used at the time of mounting the previous component and protrudes to the lowermost position, and the suction nozzle (14) of the nozzle number "2" is also used at the time of suctioning the next component of the mounting head (15). In this case, the suction nozzle (14) of the nozzle number "2" is positioned at the position shown in FIG. 22 which is the same position as when the suction nozzle (14) of another nozzle number is selected, and is stored in the RAM (172). Stores that the suction nozzle (14) with the nozzle number "2" is used, the CPU (170) protrudes the suction nozzle (14) with the nozzle number "2" to the lowermost position. And other adsorption Nozzle (14) confirms whether stored in the storing position.

That is, while the mounting head (15) is stopped at the nozzle selection station, the light from the projector (127) is seen by the output of the used nozzle detection sensor (129) to the suction nozzle (14). Since the light is shielded, the presence of the suction nozzle (14) to be used is determined, and the nozzle detection sensor (14) is used.
The light from the light projector (147) of (6) is received by the light receiver (148), so that the suction nozzle (1) to be used in FIG.
It is determined that the suction nozzle (14) on the left side of 4) is housed. Further, while the mounting head (15) is stopped and when all the suction nozzles (14) move and pass through the optical axis of the light from the projector (150) of the nozzle detection sensor (149). FIG. 2 shows that the light is not blocked.
It is determined that all the suction nozzles (14) other than the suction nozzle (14) to be used and the suction nozzle (14) detected by the nozzle detection sensor (146) are housed, and the suction nozzle to be used is determined. It is confirmed that all the suction nozzles (14) other than (14) are housed.

Next, even if the mounting head (15) stops at the station where the nozzle enters and exits due to the rotation of the turntable (13), the solenoid (100) of the station does not operate, and the clutch lever (98) is released. Since the mounting head (15) is locked by the lever (95), the mounting head (15) does not descend, and the head (15) similarly does not descend at the nozzle height selection station. ) Keeps protruding to the lowermost position, after which N
Component supply device of reel number specified in C data (8)
An operation of attaching the chip component (5) to the printed circuit board (6) by suction is performed.

Next, in order to eliminate the clogging of the suction nozzle (14) of the nozzle number "5" of the head number "8", the user presses the stop key (182) to stop the automatic operation and does not turn off the power. Assume that the suction nozzle (14) has been cleaned to eliminate the clogging, the start key (181) has been pressed while the suction nozzle (14) has been projected to the lowermost position, and the automatic operation has been restarted. In addition, the mounting head (1
In 5), it is assumed that the suction nozzle (14) of the nozzle number "1" of the nozzle type "N1" is used in the preceding mounting operation and protrudes to the lowermost position.

Next, when the suction nozzle (14) used in the mounting head (15) is of the nozzle number "1", the CPU (170) executes the suction nozzle (14) to be used in the same manner as described above. ) Is projected, and it is checked whether or not the suction nozzle (14) that is not used is housed. In this case, after the suction nozzle (14) to be used is selected at the position to be used, the used nozzle detection sensor (12) is used.
9) detects that the suction nozzle (14) of the nozzle number “1” is at the lowermost position, and outputs the result to the nozzle detection sensor (14).
6), it is detected that the suction nozzle (14) with the nozzle number "2" is housed. Nozzle detection sensor (1
49) When the mounting head (15) moves, the light is blocked by the suction nozzle (14) of the nozzle number "5" and its output is kept in the "OFF" state as shown in FIG. 60. By reading (170), it is determined that the nozzles (14) other than the suction nozzles (14) to be used are protruding, and all the suction nozzles (14) should be stored at the nozzle access station. Is determined.

Therefore, when the mounting head (15) moves to the nozzle in / out station, the solenoid (100)
Is activated, the clutch lever (98) releases the engagement with the lever (95), the mounting head (15) descends, and all the suction nozzles (14) of the head (15) are temporarily stored and used. Only the suction nozzle (14) to be protruded to the lowermost position by engagement of the nozzle release lever (84) with the lever (44). When the head (15) moves to the nozzle height selection station, the mounting head (15) is not lowered, and the suction and mounting operations of the chip component (5) are performed in the same manner as described above.

Next, the suction nozzle (1
4) When the mounting head (15) projecting to the intermediate position reaches the nozzle selection station and uses the protruding suction nozzle (14) also at the time of next component suction, the used nozzle detection sensor (129) ) Is a light-transmitting state, and it is not known whether the suction nozzle (14) is in the storage position or the intermediate position. Therefore, at the nozzle in / out station, the mounting head (15) is lowered and used after all the suction nozzles (14) are stored once. The nozzle (14) is pushed out to the intermediate position at the nozzle height selection station.

Next, the user has time while continuing the automatic operation, and the suction nozzle (1
In the inspection of 4), the stop key (182) is pressed, the automatic operation is stopped, the screen of FIG. 27 is displayed, and the skipped suction nozzle (14) is inspected. The suction nozzle (14) with the nozzle number "3" is of a different type and replaced with a correct nozzle type, and the suction nozzle (14) with the nozzle number "2" with the head number "8" is worn. This is deduced from the fact that there are many chips in FIG. 57, and is confirmed and replaced with a new one. This replacement work shall be performed with the power turned off. After the power is turned on again, the skip information and the contents of each counter are backed up and stored, so that the counter for the suction nozzle (14) is cleared on a screen (not shown) for those replaced. For the replaced suction nozzle (14), by pressing the "nozzle skip release" switch on the screen of FIG.
The storage of the skip is cleared from (172).

Next, the start key (18) is displayed on the screen shown in FIG.
When 1) is pressed, since the power is turned off, the head number and the nozzle number are not stored, so that the automatic operation is restarted. First, the head number is determined as described above, and the respective mounting heads (15) are described above. As described above, the nozzle number is determined at the nozzle selection station. The indexing operation is not performed on the mounting head (15) of the head number to be skipped which has not been cleared from the RAM (172).

Next, when the automatic operation continues and the cycle time timer reaches the 400 hours stored in the elapsed time memory, the "automatic operation 400" is performed based on the time stored in the elapsed time timer.
"Elapsed time" is displayed in green on a screen similar to that shown in FIG. The period timer is cleared, but the elapsed timer is not cleared. If the period timer has passed 400 hours, the fact that the elapsed timer has passed 800 hours is displayed. Both timers do not count the elapsed time while the power is turned off and are not in automatic operation, but keep the elapsed time so far and resume counting the elapsed time when automatic operation is resumed I do.

Next, the automatic operation is continued, and the value of the nozzle use number counter of the suction nozzle (14) having the nozzle number "6" of the head number "1" and the nozzle type "N4" is stored in the nozzle use number memory. "10000" stored
52, a screen similar to that shown in FIG.
-Nozzle number "6"-Nozzle type "N4"-1000
"Use 0 times" is displayed in green characters.

When the adsorption rate decreases, the CRT (1
87) as shown in FIG. 1, it is possible to give an indication before nozzle skipping, and if the user is not busy at that time, appropriate measures (manual skipping may be performed). If you are busy, you can take no action. If the warning is issued several times and the number of times is increased even if the worker is busy, the worker can stop what he is doing and take appropriate measures, or he can leave it alone or Even if the worst case is not at that time, when the nozzle skip abnormal suction frequency counter reaches the number stored in the nozzle skip abnormal suction frequency memory, it is automatically skipped, and waste of the part (5) beyond that can be suppressed. .

If the suction rate of the chip component (5) by the specific suction nozzle (14) decreases for some reason at the start of operation, etc.
No nozzle skip is performed, but a warning can be issued at the beginning of an unstable state. By setting the number of times of the nozzle skip suction frequency memory and the nozzle skip abnormal suction frequency memory, which are the number of suction times for nozzle skipping, to be large, the operation rate is not reduced by skipping even in such a case. It is necessary to live.

Further, a suction nozzle (1
In the case where the number of mounted nozzles 4) is small, that is, when only some of the mounting heads (15) are mounted, a warning about the nozzle (14) is performed as usual even though the nozzle is skipped. In this case, the non-adsorption rate may be increased, and the number of times of denominator adsorption may be set large. If the number of chip components (5) of a certain type is small and the user does not want to waste them, the suction nozzle (1) for suctioning the components is used.
The warning and the skip in 4) may be performed early.

Further, if the setting before the automatic operation is mistaken, the suction rate is lowered and a warning is issued. If the setting can be reset more easily than the return operation after the automatic skipping, the time is reset. This is advantageous compared to when there is only automatic skipping.

[0165]

As described above, according to the present invention, it is possible to know the deterioration of the suction rate by the warning of the warning means before the suction nozzle skips, so that appropriate measures can be taken.

[Brief description of the drawings]

FIG. 1 is a control block diagram of the present invention.

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

FIG. 3 is a side view of an electronic component automatic mounting apparatus to which the present invention is applied.

FIG. 4 is a side view in which a part of the mounting head is broken.

FIG. 5 is a side view in which a part of the mounting head is broken.

FIG. 6 is a plan view of the mounting head.

FIG. 7 is a side view showing a nozzle selection station.

FIG. 8 is a side view showing a nozzle selection station.

FIG. 9 is a side view showing a nozzle entrance / exit station.

FIG. 10 is a side view showing a nozzle entrance / exit station.

FIG. 11 is a side view showing a nozzle entrance / exit station.

FIG. 12 is a side view showing a nozzle height selection station.

FIG. 13 is a side view showing a nozzle height selection station.

FIG. 14 is a side view in which a part of the mounting head is broken.

FIG. 15 is a side view of the component supply device.

FIG. 16 is a perspective view showing a bit.

FIG. 17 is a plan view of the mounting head at the nozzle selection station.

FIG. 18 is a side view showing a component presence / absence detection sensor.

FIG. 19 is a side view showing a component posture detection sensor.

FIG. 20 is a plan view of a disk attached to the nozzle selection motor.

FIG. 21 is a diagram illustrating an output state of a nozzle position identification sensor for each nozzle number.

FIG. 22 is a plan view showing the position of each sensor at a nozzle selection station.

FIG. 23 is a side view showing a used nozzle detection sensor in a nozzle selection station.

FIG. 24 is a side view showing a nozzle detection sensor at a nozzle selection station.

FIG. 25 is a side view showing a nozzle height detection sensor at a nozzle height selection station.

FIG. 26 is a side view of an electronic component automatic mounting apparatus to which the present invention is applied.

FIG. 27 is a screen view displayed via a touch panel switch.

FIG. 28 is a diagram showing NC data.

FIG. 29 is a diagram showing part library data.

FIG. 30 is a diagram showing part data.

FIG. 31 is a diagram showing nozzle data.

FIG. 32 is a screen view displayed via a touch panel switch.

FIG. 33 is a screen view displayed via a touch panel switch.

FIG. 34 is a screen view displayed via a touch panel switch.

FIG. 35 is a screen view displayed via a touch panel switch.

FIG. 36 is a screen view displayed via a touch panel switch.

FIG. 37 is a screen view displayed via a touch panel switch.

FIG. 38 is a screen view displayed via a touch panel switch.

FIG. 39 is a screen view displayed via a touch panel switch.

FIG. 40 is a screen view displayed via a touch panel switch.

FIG. 41 is a screen view displayed via a touch panel switch.

FIG. 42 is a screen view displayed via a touch panel switch.

FIG. 43 is a plan view showing a light shielding plate and a sensor.

FIG. 44 is a side view showing a light shielding plate and a sensor.

FIG. 45 is a plan view showing a light shielding plate.

FIG. 46 is a plan view showing a light shielding plate.

FIG. 47 is a plan view showing a light shielding plate.

FIG. 48 is a plan view showing a light shielding plate.

FIG. 49 is a plan view showing a light shielding plate.

FIG. 50 is a diagram illustrating an output state of a sensor for each head number.

FIG. 51 is a diagram showing attachment of the sensor to the attachment plate.

FIG. 52 is a screen view displayed via a touch panel switch.

FIG. 53 is a screen view displayed via a touch panel switch.

FIG. 54 is a screen view displayed via a touch panel switch.

FIG. 55 is a screen view displayed via a touch panel switch.

FIG. 56 is a screen view displayed via a touch panel switch.

FIG. 57 is a screen view displayed via a touch panel switch.

FIG. 58 is a screen view displayed via a touch panel switch.

FIG. 59 is a screen view displayed via a touch panel switch.

FIG. 60 is a diagram in which the horizontal axis represents the output of the sensor over time.

[Explanation of symbols]

 (5) Chip-shaped electronic component (6) Printed circuit board (14) Suction nozzle (170) CPU (control means) (172) RAM (185) Tower light (warning means) (187) CRT (warning means) (189) Buzzer (Warning means)

Claims (1)

(57) [Claims] In an electronic component automatic mounting apparatus for sucking an electronic component with each of a plurality of suction nozzles and mounting the electronic component on a printed circuit board, the number of unsucked times until a predetermined number of times of suction is reached for each of the nozzles. A warning unit for warning when the number reaches a predetermined number; and skipping the suction nozzle when the number of non-suctions reaches a second predetermined number until another number of suctions greater than the predetermined number of suctions is reached. Electronic component automatic mounting apparatus provided with control means for performing such control.