JPH0653693A - Automatic electronic component mounting apparatus - Google Patents

Abstract

PURPOSE:To prevent a component from being taken out when a nozzle not in use is still protruding. CONSTITUTION:If a chip component is, when a certain mounting head 15 reaches a nozzle selecting station, sucked by a suction nozzle 14 protruding at present of the next head 15, nozzle detection sensors 146, 149 provided at the station detect whether the nozzle 14 except the nozzle 14 to be used protrudes from its containing position or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of suction nozzles that can be moved in and out of a mounting head, the suction nozzles used for suctioning electronic components projecting to the use position, and the unused nozzles remain in the storage position. The present invention relates to an electronic component automatic mounting device that takes out electronic components and mounts them on a printed circuit board.

[0002]

2. Description of the Related Art A device for automatically mounting electronic components of this type is disclosed in Japanese Patent Laid-Open No.
It is disclosed in Japanese Patent Laid-Open No. 3-174393. Three suction nozzles are attached to the suction head so that they can move up and down. Only the nozzles that perform the suction operation project and the other two suction nozzles that do not perform the suction operation have their flange surfaces pushed up by the pressing lever. It has been pushed upwards.

[0003]

However, in the prior art, when the suction nozzle that is the unused nozzle that does not perform the suction operation is protruding, the protruding unused suction nozzle collides with each other when the component is sucked. There is a problem that the parts are loosened or hit the parts already installed when the parts are installed. Therefore, it is an object of the present invention to prevent components from being taken out when the unused nozzles are protruding.

[0004]

Therefore, according to the present invention, among a plurality of suction nozzles provided to be able to move in and out of a mounting head, a suction nozzle used for sucking an electronic component projects to a use position and an unused nozzle is stored. An electronic component automatic mounting apparatus for picking up an electronic component in a position and mounting it on a printed circuit board is provided with a detecting means for detecting whether or not the unused nozzle is projected from the storage position before the component is sucked.

[0005]

Before the suction of the electronic component, the detection means detects whether or not the unused nozzle out of the plurality of suction nozzles provided in the mounting head protrudes from the storage position.

[0006]

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

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

[0007] (7) is a supply table, chip parts (5)
A large number of component supply devices (8) for supplying the are provided. (9) is a supply base drive motor, which is a ball screw (1
0) is rotated to guide the supply table (7) to the linear guide (12) via the nut (11) fitted to the ball screw (10) and fixed to the supply table (7). Move in the X direction. (13) is a turntable that rotates intermittently, and mounting heads (15) having six suction nozzles (14) are arranged at equal intervals on the outer edge of the table (13) in accordance with the intermittent pitch. There is.

Incidentally, the number of heads (15), that is, the number of stop stations to be described later, is actually 24 times, which is twice the number shown in FIG. The description will be given with reference to FIG. The actual order of arrangement of the respective stop stations with respect to the turntable (13) and the positions of the suction station and the mounting station are shown in FIG.
Does not change.

(A) Description of each station (see FIG. 2) In FIG. 2, the stop position of the mounting head (15) for picking up the component (5) from the supply device (8) by the suction nozzle (14) 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 the suction correction station, and the suction correction device (191) sucks in the Y direction which is a direction orthogonal to the moving direction of the supply table (7). The position of the nozzle (14) is corrected.

The next stop position after the suction station is the component posture detection station, and the presence or absence of suction of the component (5) of the suction nozzle (14) and the standing of the component (5) described later are detected. Be seen.

The reference numeral (16) recognizes the positional deviation of the component (5) sucked by the suction nozzle (14) by imaging the lower surface of the component (5) with a camera in a predetermined visual field range and recognizing the imaged screen. A station which is a component recognition device and in which the turntable (13) rotates and the mounting head (15) stops on the device (16) is a recognition station.

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

The next stop position after the angle correction station is the mounting station, and the component (5) to be sucked by the suction nozzle (14) of the station is mounted on the board (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) and any of the plurality of nozzles (14) is rotated. The nozzle (14) is selected.

Next, the position at which the mounting head (15) stops is the nozzle inlet / outlet station, and the nozzle (14) is stored and projected using the first nozzle contact base (20) (FIGS. 9 to 9). 11).

Next, the position where 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 contact base (21) ( (See FIGS. 12 and 13).

(B) Description of the mounting heads (15) As shown in FIG. 3, each mounting head (15) penetrates the turntable (13) at two locations, an inner side and an outer side, so as to be vertically movable. It is attached to the lower part of 24), and the upper part of the shaft (24) is fixed to an L-shaped roller mounting body (25). An upper cam follower (26) and a lower cam follower (27) protruding inward are rotatably supported on the upper portion of the roller mounting body (25).

Reference numeral (28) is a support table that supports the turntable (13) so as to be horizontally rotatable below and around the rotation axis of the turntable (13) of the support table (28). Has a cylindrical cam (29) projectingly fixed to the support base (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).

Since the cylindrical cam (29) moves up and down, rotation of the turntable (13) causes the cam follower (2) to rotate.
6) (27) moves while rolling on the upper and lower surfaces of the cam (29), and the mounting head (15) also moves while moving up and down accordingly.

Reference numeral (36) is a vacuum tube for supplying a vacuum to the suction nozzle (14) of the mounting head (15), which is provided on the support base (28) through the vacuum passage (37) in the turntable (13). It communicates with 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) is a mounting plate fixed to the lower portion of the shaft (24), and the rotating body (40) is mounted rotatably in the θ direction via a bearing (40A). The six suction nozzles (14) pass through the rotating body (40) so that each of them can move up and down, and are provided at equal rotation angles in the θ direction. The six suction nozzles (14) are of various types such as different diameters so that various parts (5) can be sucked. An engaging body (38) is attached to an upper portion of each nozzle (14), and an engaging piece (42) with which a pressing spring (41) is engaged is formed in the engaging body (38). (14) is always urged downward. The pressing spring (41) is mounted on the guide rod (104), and the engaging piece (42) is provided with a through hole through which the guide rod (104) penetrates. A spindle (43) is provided on top of the rotating body (40).
A lever (44) is provided for each nozzle (14) so as to be swingable around the lever (44).
A locking claw (45) is formed on the lower part. (46) is a spring that biases the lever (44) so that the claw (45) rotates inward.

At the upper end of the engaging body (38), the locking claw (4
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 limit which is the lowermost end position of the suction nozzle (14) is abutted to regulate the lower limit, and the suction claw (45) is engaged to regulate the suction nozzle (14) to the upper limit position which is the "storage position". .

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

Further, the lower engaging claw (48) has a rotating body (40).
When the suction nozzle (14) on the right side of FIG. 5 which is regulated by the upper surface of FIG. 5 is in the “lowermost end position”, the upper side surface (49) of the upper engaging claw (47) is the lower side surface of the locking claw (45) ( 50), and a force is applied from below to the suction nozzle (1
4) can be moved up.

A bit (66), which will be described later, is provided at the upper end of the rotating body (40) for rotating the rotating body (40).
Fitted grooves (52) that can be fitted to each other are formed at three equiangular intervals of 60 degrees in accordance with the arrangement position of the suction nozzle (14), each passing substantially on the rotation axis of the rotating body (40) in three directions. Has been done. That is, the extension of the groove (52) in the arranging direction is 6
The suction nozzles (14) are arranged at 0 degree intervals.

When five suction nozzles are arranged on the rotating body at equal angular intervals, the fitted grooves are provided on a straight line in the direction of arrangement of the nozzles, so that the rotating body is rotated. Grooves will be arranged at 36 degree intervals around the axis.

Further, as shown in FIG. 17, six notches (equal angular intervals) are formed around the nozzle position identification portion (110) at the bottom of the rotating body (40) in accordance with the arrangement position of the suction nozzle (14). The nozzle position identification code part (112) indicating the attachment position of the suction nozzle (14) is provided by not 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 port (108) communicating with the tip of the suction nozzle (14) through a communication port (107) formed in the side surface of the suction nozzle (14) so that the component (5) can be vacuum-sucked. Has been done. The vacuum hole (106) is a vertically long hole so that the communication hole (107) communicates with each other when the suction nozzle (14) is at both the "intermediate height position" and the "lowermost position". When the nozzle (14) is in the “storage position” as shown on the left side of FIG.
The vacuum of 08) is turned off.

(C) Description of Lifting Mechanism of Mounting Head (15) The mounting head (15) is a suction station and a mounting station.
The mounting head (15) ascends and descends as shown in FIG. 3, but in each station, the cylindrical cam (29) is arranged in the cutout portion and has a U-shaped cross section. The cam followers (26) (27) sandwich the lower projection (57) of the block (53) and the mounting head (1
5) is in a supported state. The lifting block (53)
Is moved up and down by rotation of a motor (not shown) that rotates the turntable (13), and rotation of a cam (not shown) that rotates once for each intermittent rotation of the turntable (13). In the suction station and the mounting station, the lifting stroke can be changed by a stroke changing mechanism (not shown) according to the chip component (5) to be sucked or mounted.

(D) Description of component supply device (8) (see FIGS. 3 and 15) At the suction station, the component (5) supplied by the component supply device (8) is sucked by the suction nozzle (14) descending. Taken out. The component (5) accommodated in the tape (130) wound around the tape reel (59) at regular intervals is rotated by the swing lever (61) in the counterclockwise direction in FIG. Through the feed lever (132)
15 swings in the counterclockwise direction in FIG. 15, the feed claw (133) rotates the feed gear (134), and the sprocket (135) rotates to feed the tape (130) at a predetermined pitch. ) Is sent to the removal position.

On the other hand, when the swing lever (61) rotates counterclockwise in FIG. 15, the ratchet lever (137) swings counterclockwise via the tension spring (136), and the ratchet pawl (138). Engages the ratchet gear (139) and rotates the cover tape reel (140) at a predetermined angle in the counterclockwise direction in FIG. The suppressor (14) holding the tape (130) by the rotation of the reel (140)
In the opening (142) of 1), the cover tape (143) attached to the upper surface of the tape (130) is wound around the reel (A40) while being peeled off from the tape (130).

(E) Swing lever (6 for tape feeding
(1) Description of mechanism for rocking (see FIG. 3) (64) penetrates the lift guide block (144) attached to the support base (28) so as to be vertically movable to rock the rocking lever (61). It is a lift bar that has moved, and the supply device (8) reaches a position where it is adsorbed by the adsorption nozzle (14) of the adsorption station by the movement of the supply table (7), stops, and then descends to move the swing lever (61). The above-described tape feeding, which is a pressing-down component supply operation, is performed to move up. The lifting rod (6
The vertical movement of 4) is caused by the rotation of a cam (not shown) which rotates once for each intermittent rotation of the turntable (13).

(F) Description of the component posture detection station.

As shown in FIG. 18, the component attitude detecting station is provided with a component presence / absence detecting sensor (116) including a light projector (114) and a light receiver (115). When the light projected from the projector (114) is blocked by the chip component (5) sucked by the suction nozzle (14), the presence of the component is detected, and when the light is not blocked, 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 attitude detection sensor (119) composed of a light projector (117) and a light receiver (118). The light emitted from the light projector (117) is absorbed by the suction nozzle (14) in a normal state as shown by a broken line in FIG.
The light is received by the light receiver (118) without being shielded by the chip component (5) that is adsorbed on the substrate. However, when it is adsorbed in the standing state as shown by the solid line in FIG. Is detected.

The sensor (116) and the sensor (11) are arranged such that the optical axes of the light projected by the projector (114) and the projector (117) intersect each other below the suction nozzle on a plane.
7) is provided in another place, and the presence or absence of the component and the standing of the component can be detected at the same time in the same station. The component presence / absence detection sensor (116) and the component attitude detection sensor (119) are respectively provided on suction nozzles (1
It is provided above and below according to the intermediate position and the lowermost position of 4).

(G) 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.

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

On the rotary shaft (121) to which the gear (70) of the motor (69) is attached, a disc (122) is attached on the opposite side of the motor (69). As shown in FIG. 20, slits (12) are formed in the disk (122).
3) are cut out at regular intervals on the outer edge thereof, and the slits (123) can be detected by a transmitted light type sensor (126) consisting of a light projector and a light receiver.

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

Reference numeral (72) is a rocking lever rotatable about a support shaft (73), and a roller (74) provided at the right end (FIG. 8) thereof is provided around the elevating member (68). The lift member (68) is moved up and down by fitting in the recess (75) and swinging. Reference numeral (76) is a spring provided between the elevating member (68) and the guide portion (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 about 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) so as to swing it 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), the bit (66) is moved up and down, and the bit (66) is fitted into the fitted groove (52) at the lowered position.

The rotating body (40) in which the bit (66) is fitted by the rotation of the motor (69) by 360 degrees (that is, the rotation of the disc (122) by 360 degrees) is rotated by the gear (70). ) (71) is configured, 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).

In the nozzle selection station, the nozzle position identification code portion (112) corresponding to the suction nozzle (14) stopped at the suction position 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 reflection type optical sensor (S1) (S2) (S3) faces. The presence / absence of the cutout is detected and "1" is output if the notch (111) is present, and "0" is output if it is not present. 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 part (112) with respect to the rotating body (40). ) (S2) (S3), the notch (111) is formed in each nozzle position identification code part (112). FIG. 17 shows a case where the suction nozzle (14) with the nozzle number “1” is stopped at the position for sucking the chip component (5), and the nozzle position identification code portion (112) next to the nozzle in the clockwise direction is shown. Is the nozzle number "2", and the nozzle numbers "3" to "6" correspond to the respective nozzle position identification code portions (112) in the clockwise direction. Adsorption correction device (191)
Also, the head rotation device (17) is not provided with the nozzle position identification sensor (113).

Reference numeral (124) shown in FIG. 8 is a proximity sensor. When the wall surface (125) at the upper portion of the recess (75) formed in the elevating member (68) faces the sensor (124). "ON" is output, and "OFF" is output when the concave portions (75) face each other. When the lever (72) swings counterclockwise in FIG. 8 to raise the lifting member (68), the sensor (124) faces the recess (75), and the lifting member (68) is moved. Falls and bit (66)
The sensor (124) faces the wall surface (125) in a state where the sensor is fitted in the fitted groove (52). Lifting member (6
Even if 8) descends, the bit (66) cannot be fitted into the mating groove (52) and cannot descend further, so that it faces the recess (75) and the sensor (124) outputs "OFF". It is designed to do. Therefore, it is possible to detect whether the elevating member (68) has descended when it should descend.

(H) Description of a mechanism for projecting and storing the suction nozzle (14) at the nozzle loading / unloading station (FIGS. 9 to 1)
(1) (84) is a nozzle release lever that rotates around a support shaft (85), and is selected by being rotated and selected by the nozzle selection device (19), and is in a position to adsorb the component (5) next. 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 hooked between the one end of the lever (84) and a mounting plate (65) to allow the lever (84) to rotate. Is urged to rotate counterclockwise in FIG. At the other end of the rod (87), a lever (91) that pivots around a support shaft (90) that engages with the cam (89) is pivotally supported.

The suction nozzle (14) protruding from the mounting head (15) descending to the first nozzle abutment base (20) provided on the base (92) mounted on the mounting plate (65) is in contact. By contacting and further descending, all the suction nozzles (14) are housed. The height of the abutment table (20) is such that the suction nozzle (14) protruding at the lowermost position does not hit when the mounting head (15) moves to and from the nozzle in / out station. Has been done.

(I) Description of Nozzle Height Selection Station Next, the mounting head (1
5) whether to lower, that is, the suction nozzle (14)
A mechanism for selecting whether or not to be the "intermediate height position" will be described.

The second nozzle abutment table (21) is also provided on the base (92) as shown in FIG. 12, and this height is the same as that of the nozzle abutment table (20). The height does not hit (14). Cylindrical cam (2
Since the height of 9) is almost the same between the stations, both of the nozzle contact bases (20) and (21) are almost the same height.

In FIG. 12, a guide (15) attached to a support plate (156) fixed to a support base (28).
The lifting rod (158) that moves up and down along the shaft 7) is
4) is rotatably supported at one end of a lever (95) which is rotatable around 4) and is biased by a tension spring (96) suspended between a rod (158) and a support (28). The other end of the lever (95) is engaged with the cam (97).
Therefore, the mounting head (15) is moved up and down by the rotation of the cam (97) to move up and down the lifting block (159) attached to the lower end of the lifting rod (158), and the protrusion (160) formed at the lower end of the block (159). ) Is held between the cam followers (26) and (27). This lifting stroke is shorter than the stroke at the nozzle loading / unloading station, and the lifting head (15) is lowered to the 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 what makes me.

Reference numeral (98) is a clutch lever which is rotatable around a support shaft (99) and is pivotally supported by a plunger (101) of a solenoid (100) so that the solenoid (100) is excited. Plunger (10
1) is pulled and resists the urging force of the pressing spring (102).
2 swings in the counterclockwise direction and engages below the left end portion of the lever (95) to restrict the rotation of the lever (95) so that the lifting block (159) does not descend and the suction nozzle (1
4) is set to the lowermost position so that the contact table (21) does not come into contact with the contact point (4). When the solenoid (100) is demagnetized, the spring (102) causes the lever (98) to be in the state shown in FIG.
3) so that the nozzle (14) is brought into contact with the contact table (2
In 1), it is set as "intermediate height position".

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

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

In the nozzle selection station, as shown in FIG. 1, when the mounting head (15) reaches the suction station, the suction nozzle (14) used for sucking the chip component (5) (see FIG. 1). The nozzle used for detecting (129) is provided to detect whether the turntable (13) is located at the outermost side from the center of the turntable (13) and is projected to the lowermost position. Has been. The sensor (129) is a transmitted light type sensor in which the light projected from the light projector (127) is received by the light receiver (128), and as shown in FIG. 23, the suction nozzle (14) protruding to the lowermost position. ), The light from the projector (127) is shielded and the suction nozzle (14) at the lowermost position is detected, and the suction nozzle (14) at the intermediate position is not shielded and the suction nozzle (14) is moved to a level above the intermediate position. In some cases, it is detected that it is not at the bottom end position. The position where the optical axis of the sensor (129) is shielded by only the suction nozzle (14) used for suction as shown in FIG. 1 when the mounting head (15) is stopped in the nozzle selection station. Therefore, even if the other suction nozzle (14) projects to the lowermost position, the light is not shielded.

In the nozzle selection station, as shown in FIG. 1, when the mounting head (15) is stopped, the suction nozzle (14) used for suction is located on the left side of FIG. Is provided with a nozzle detection sensor (146) having a straight line connecting the suction nozzles (14) as an optical axis.
When the suction nozzle (14) of the book protrudes from the storage position, the irradiation light from the light projector (147) is blocked by the nozzle and is not received by the light receiver (148) as shown in FIG. Is detected. Detection of whether or not the four suction nozzles (14) of the mounting head (15) other than those described above are projected from the storage position is detected by the nozzle detection sensor (149), and the detection is performed when the mounting head (15) is stopped. Adjacent to the clockwise direction of the suction nozzle (14) on the optical axis of the nozzle detection sensor (146) shown in FIG. 1 on the optical axis of the light projector (150) and the light receiver (151) that form the sensor (149). The nozzle (14) is positioned. The height positions of the light projector (150) and the light receiver (151) are the same as those of the sensor (146).
It is in the state of 4. The output signal from the sensor (149) 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 is “OFF” when shielded from light. However, even if the light receiving state is subsequently received, the turntable (13) starts rotating from the stopped state of intermittent rotation and the mounting head (15).
Moves and all the suction nozzles (1) of the head (15)
The OFF-delay circuit (not shown) holds the "OFF" state until 4) passes through the optical axis of the sensor (149), as shown in FIG. A CPU (17), which will be described later, outputs signals from the sensor (149).
(0) is taken in by all suction nozzles (1
4) has passed and remains in the “OFF” state, the mounting head (15) moves and then the projector (15) moves.
When the "OFF" state due to the light blocking of the light (0) is detected, 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 position, light is not shielded, so the output signal of the sensor (149) is “ON”.
It is determined that the state remains and that everything is stored. The timing at which the output signals from the used nozzle detection sensor (129) and the nozzle detection sensor (146) are taken into the CPU (170) is only while the mounting head (15) is stopped. Even if it is shielded after moving, it is not detected.

(L) Detection of the height position of the suction nozzle (14) in the nozzle height selection station will be described.

FIG. 1 shows the nozzle height selection station.
2, FIG. 13 and FIG. 25, the projector (15
2) and a light receiver (153), which is provided with a nozzle height detection sensor (154) for detecting the nozzle height. The height of the optical axis of the sensor (154) is such that when the suction nozzle (14) used for suction is in the lowest position when the mounting head (15) is raised as shown in FIG. ), And when the nozzle (14) is at the intermediate position, the light passes through and is received by the light receiver (153). Therefore, when the suction nozzle (14) used for suction should be at the lowermost position, the CPU (170) shields the sensor (154) when the mounting head (15) stops at the nozzle height selection station. If it is determined that the suction nozzle (14) is at the lowermost position, and the light is received by the light receiver (153), the nozzle (1
It is judged that 4) is not projected. If the suction nozzle (14) should be in the middle position, the mounting head (1
After 5) reaches the nozzle height selection station, descends and then rises, and if the sensor (154) passes light and is received by the light receiver (153), it is determined that it is protruding to the intermediate position. If the light is not shielded by the light receiver (153), it is determined that it is still at the lowermost position because the intermediate position has failed.

(2) Description of head number detection.

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

(W) Explanation of control block diagram (FIG. 27) In FIG. 27, (170) is a CPU and ROM
RAM according to the program stored in (171)
Based on the data stored in (172) and the output signal via the sensor interface (173) as described above and shown in FIG. 27, the operation relating to component mounting is controlled. The CPU (170) is an interface (173)
27, and controls the motor and the like described below in FIG. 27 via the drive circuit (174).

(176) is a nozzle selection motor (6) of the nozzle selection device (19) in the suction correction device (191).
9 is a suction correction motor corresponding to 9), and (178) is a nozzle selecting device (19) in the head rotating device (17).
Is an angle correction motor corresponding to the nozzle selection motor (69). The motors (176) (178) are all motors (6
It 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) has 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 lamp (185) is attached to the main body (188) of the apparatus as shown in FIG.
The colors are 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) is
It is mounted on the screen of the CRT (187) via a mounting tool (not shown). In addition, the touch panel switch (186) has a transparent conductive film coated on the entire surface of the glass substrate, and electrodes are printed on four sides. Therefore, an extremely small current is applied to the surface of the touch panel switch (186), and when the operator touches it, the current changes in the electrodes on the four sides, and the coordinate values touched by the circuit board connected to the electrodes are calculated. Therefore, the coordinate value is RA which will be described later.
When the coordinate value in the coordinate value group stored in advance as a switch unit for performing the work in M (172) matches, the work is performed. In this embodiment, CRT (1
The portion enclosed by the double frame of the screen displayed in 87) is stored for each screen so as to serve as the switch unit.

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

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

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

That is, the reel abnormal suction frequency memory (the suction rate of the suction rate of the suction rate of the reel supply for storing the reel warning suction rate set to warn the reel number of the component supply device (8) whose suction rate is lowered during the automatic operation. Numerator) and reel adsorption frequency memory (which is the denominator of adsorption rate)
A reel abnormal suction number counter for counting the abnormal suction number and a reel suction number counter for counting the abnormal suction number 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 also be set in the reel suction number memory and the set number is “m1”. ,
Each time the component supply device (8) having the same reel number picks up m1 times, the reel abnormal suction number counter and the reel suction number counter are cleared, and the reel abnormal suction number counter is set to "1" before the suction number reaches "m1". When it reaches "n1", 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 warning adsorption number memory (which becomes a molecule of the adsorption rate) for storing the nozzle warning adsorption rate set to warn the nozzle number for which the adsorption rate has decreased during automatic operation, and nozzle adsorption A number memory (which is the denominator of the suction rate) is provided, and a nozzle abnormal suction number counter that counts the abnormal suction number and a nozzle suction number counter that counts the suction number are provided for each nozzle number for each head number. ing. Nozzle error suction count memory can be set to 3 digits and the set count is "n".
2 ”, and if the number of times of suction is set to 3 digits in the nozzle suction frequency memory and the set number of times is“ m2 ”, each time the suction nozzle (14) with the same head number and nozzle number sucks m2 times. The nozzle abnormal suction number counter and the nozzle suction number counter are cleared, and if the nozzle abnormal suction number counter reaches "n2" before the suction number reaches "m2", a warning is issued as described later and the nozzle The abnormal suction number counter and the nozzle suction number counter are cleared. The warning is released by the alarm release key (195) and the return key (183) as shown in FIG. Further, a continuous suction abnormality number memory that stores the suction abnormality number set to automatically skip the suction nozzles (14) that have continuously become suction abnormal during the automatic operation, and a continuous counting of the number of consecutive suction abnormality. 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 normally adsorbed, and when the adsorption abnormality occurs continuously and the set number of times is reached, the adsorption nozzle (14) is automatically skipped thereafter. Skipping means that the chip component (5) is not picked up. Therefore, all operations from the nozzle selection station to the preparatory operation performed in each stop station to the recognition station are performed. That is, the suction nozzle (14) cannot do it.

Further, the abnormal number of times of adsorption for nozzle skip for storing the nozzle skip adsorption rate set for automatically skipping the adsorption nozzle (14) whose adsorption rate is lowered during the automatic operation (the adsorption rate numerator And a nozzle skip suction count memory (which is the denominator of the suction rate), and a nozzle skip abnormal suction count counter that counts the abnormal suction count and a nozzle skip suction count counter that counts the suction count. It is provided for each nozzle number for each head number. The number of abnormal adsorption times for nozzle skip can be set to 4 digits and the set number is "n3", and the number of adsorptions for nozzle skip can be set to 4 digits and the set number is "m3". Then, every time m3 suction is performed by the suction nozzle (14) having the same head number and nozzle number,
The nozzle skip abnormal suction number counter and the nozzle skip suction number counter are cleared, and the suction number is "m".
If the nozzle skipping abnormal adsorption number counter reaches "n3" before reaching "3", the adsorption nozzle (14) is automatically skipped thereafter.

The detection of the above-mentioned suction abnormality is carried out 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 detection sensor (119) and when the component recognition device (16) recognizes that the chip component (5) is not adsorbed, or when it is determined that the chip recognition is not recognized, and the component recognition is abnormal. There is. The counter that counts the adsorption abnormality described above counts in all of these cases. However, when the absence of a component or the standing of a component is detected, the operation in the stop station thereafter is not performed, and the component recognition device (16) does not recognize it. Therefore, the same suction abnormality is duplicated twice. It does not count.

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

Further, the mounting head (15) which cannot continuously return to the origin in the nozzle selection station during the automatic operation.
The head origin return abnormality count "2" for automatically skipping is stored (it cannot be set by the user) and stored, and a head origin return abnormality count counter that counts consecutive home return abnormality counts is provided for each head number. It is provided. When the transmitted light type sensor (126) detects the slit (123) and outputs the proximity sensor (124) or "OFF", the nozzle position identification sensor (113) does not detect the nozzle number to be detected. In this case, it is judged that the home return is abnormal. The transmitted light type sensor (126) has a slit (1
Even when 23) cannot be detected, it is determined that the origin return is abnormal.

Furthermore, during automatic operation, the nozzle selection station, the suction correction station, and the rotation return station are continuously displayed.
Bit (66) at the station and nozzle selection station
If the proximity sensor (124) is "OFF" even when the lever is moved down by swinging the swing lever (72), the number of bit lowering abnormalities "2" for automatically skipping the mounting head (15) is fixed. A bit down abnormality number counter for storing and counting consecutive bit down abnormality numbers is provided for each head number. Here, “continuously” means only when the rocking lever (72) is rocked to lower it, and it does not descend when it is lowered once at some station. After that, the second counting is performed when the sensor (124) is "OFF" in the nozzle selection station because it is not attempted to lower it to the next nozzle selection station. The skip of the mounting head (15) means that the head (15) does not perform the operations related to the removal and mounting of the chip component (5).

The RAM (172) further includes a no-part counter for counting the number of times the no-part detection sensor (113) detects no-part, and a part attitude detection sensor (11).
9) A component standing counter that counts the number of times that the standing of the component is detected, a counter without a recognition component that counts the number of times that the chip recognition device (16) recognizes that the chip component (5) is not adsorbed, A recognition abnormality counter is provided for each nozzle number for each head number, which counts the number of times that the recognition device (16) recognizes that the component has been recognized as abnormal and cannot be recognized. In addition, a suction abnormality counter that stores the total value of the component-less counter, the component standing counter, the recognized component-less counter, and the recognition abnormality counter is provided, and the nozzle usage counter that counts the cumulative number of times that component suction has been performed is also 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 by the ratio of both counters. Further, an up / down switching abnormality accumulating counter for counting the cumulative number of up / down switching abnormalities is provided for each nozzle number for each head number.
The no-part counter, the part standing counter, the no-recognition part counter, the recognition error counter, the suction error counter, the nozzle usage count counter, and the up / down switching error accumulation counter are the above-mentioned nozzle error suction count counter, nozzle suction count counter, and nozzle skip error suction. It is not cleared when the number counter and the suction number counter for nozzle skip are cleared, but is cleared by pressing a key formed at a predetermined position of the touch panel switch (186) on the screen (not shown) of the CRT (187). .

The RAM (172) further stores a cumulative reel abnormality suction number counter for counting the cumulative suction abnormality number of the chip component (5) for each reel number, and a cumulative suction number of the chip component (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 both counters. The cumulative reel abnormal suction number counter and the cumulative suction number counter are not cleared by clearing the reel abnormal suction number counter, the reel suction number counter, etc.
It is cleared by pressing a key formed at a predetermined position of the touch panel switch (186) on the screen (not shown) of T (187).

The RAM (172) is further provided with a suction rate lowering nozzle list memory, and in the memory, five heads and nozzle numbers of the suction nozzles (14) whose suction rate is decreasing are in descending order. In addition to being stored, a suction-rate-reduced reel list memory is provided so that five reel numbers having a lower suction rate are stored in ascending order. In the suction rate lowering nozzle list memory, when the nozzle number is displayed on the screen of the CRT (187) as shown in FIG. 32, the suction rate for each head number and nozzle number calculated from the suction abnormality counter and the nozzle usage number counter The CPU (170) searches for and stores the five worst ones. Similarly, when the reel number is displayed on the CRT (187) screen in the pickup rate reduction reel list memory as well, the pickup rate is bad for each reel number calculated by the cumulative reel abnormality suction number counter and the cumulative suction number counter.
The CPU (170) searches for and stores them. In this embodiment, the data once stored is not changed during the screen display, but the worst data is always replaced and stored so that the screen display can be changed according to the actual state. May be.

In the RAM (172), the number of printed circuit boards (6) on which the chip parts (5) have been mounted, that is, the number of guide cycles set to notify the number of finished products for each designated quantity, is stored. A finishing number memory and a production finishing number counter for counting finished substrates (6) are provided. The counter is cleared by the user's operation on the screen of FIG. 33, and is cleared by the CPU (170) for each number stored in the production finishing number memory. In addition, since the production finish number counter is also cleared when the user clears the production finish number counter and the production finish number counter becomes the number of the production finish number memory and is not cleared even if it is cleared, a CPU is also provided. (170) can display the 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 if the nozzle use count counter reaches the number of the nozzle use count memory. CPU (1
70) notifies 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 in order to notify the elapsed time each time the designated time of automatic operation has elapsed.
The U (170) and the RAM (172) form a cycle time timer that is cleared each time the elapsed time memory elapses and a time elapsed timer that measures the accumulated time. The cycle time timer and the elapsed time timer are simultaneously cleared by the user on the screen of FIG. Therefore, every time the time of the elapsed time memory elapses, a screen showing the elapse of time can be displayed.

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

The operation will be described below with the above configuration.

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

The setting operation of various parameters will be described below.

When the switch portion labeled "DATA EDITING" surrounded by double frames on the initial screen is pressed, the data editing screen shown in FIG. 37 is displayed. When the switch section of "operating parameter" is pressed on the screen, the operating parameter screen shown in FIG. 38 is displayed.

On the operation parameter screen, press the switch part on the right side of the "number of consecutive abnormalities" displayed in the "Automatic Nozzle Skip" table, and press "3" on the switch part of the numeric keypad at the bottom right of the screen.
When you key in, "Continuous abnormal frequency:" and "3 times" are displayed as shown in the lower left frame of the same screen, and "Setting" is displayed.
When you press the setting key, which is the switch section displayed as
"3" is stored in the continuous adsorption error count memory in M (172), and "3 times" is displayed in the switch section on the right side of the "Continuous error count" display in the "Automatic nozzle skip" table. It

Next, when the "absorption rate""abnormalitycount" switch section is pressed on the same screen, and similarly "1234" is keyed in and the setting key is pressed, it is stored in the nozzle skip abnormal adsorption count memory. , Press the "Adsorption Number" switch section, key in "4321" and press the setting key. Similarly, it is stored in the nozzle skip adsorption number memory, and nozzle skip adsorption for automatically skipping the adsorption nozzle (14). The rate is set.

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

Next, when the switch section displayed as "Page feed" on the same screen is pressed, the screen shown in FIG. 39 is displayed, and the "Abnormal number" switch section of "Reel warning adsorption rate" is pressed,
When "234" is keyed in and the setting key is pressed, "234" is stored in the reel abnormality adsorption number memory. Press the "Adsorption Number" switch below the same screen, and
When "4" is keyed in and the setting key is pressed, "1234" is stored in the reel attraction frequency memory and the reel warning attraction rate is set.

Next, when the "abnormality number" switch section of "nozzle warning adsorption rate" is pressed on the same screen and "123" is keyed in and the setting key is pressed, "123" is stored in the nozzle abnormality adsorption frequency memory. Remembered. When the “Adsorption Number” switch section below the same screen is pressed and “321” is keyed in and the setting key is pressed, “321” is stored in the nozzle adsorption frequency memory.
Is stored and the nozzle warning suction rate is set.

Next, when the "Page feed" switch section of the same screen is pressed, the screen of FIG. 40 is displayed, and "Guide" is displayed on the right side of "Function selection" of "Board finishing guide". When the switch part is pressed, it becomes a stage where it is possible to set whether to select the function of "board finishing guide". Here, the switch section (197) displayed as "guidance"
When is pressed, a function is selected and displayed in the lower left frame of the screen as shown in FIG. After that, when you press the setting key, the switch section displayed as "guide" on the right side of "function selection" of "board finishing guide" remains as "guide" and the function is set. It Here, if the switch unit (198) displayed as "Do not guide" is pressed, the function is not selected, but the switch unit (197) is pressed to select the function of "functional finishing guide".
Then, when the switch portion on the right side of the "guidance cycle" of "board finishing guide" is pressed, the ten keys shown in FIG. 38 are displayed instead of the display of the switch portions (197) (198).
When "300" is keyed in, "300" is displayed and the setting key is pressed, "300" is stored in the production finishing number memory.

Next, the switch section on the right side of "Function selection" of "Automatic driving guidance" on the same screen is set to "guide" in the same manner, and the "guidance time" below it is set to "400 hours" in the same manner. When the setting key is pressed as, "400" is stored in the elapsed time memory.

Next, in the "Nozzle usage guide" on the same screen, "Function selection" is set to "Guidance" and "Number of times of guidance" is set to "10."
0000 times ”, and“ 10000 ”is stored in the nozzle use frequency memory.

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

Next, when the "screen restoration" switch is pressed on the screen of FIG. 40, the screen returns to the screen of FIG. 37, and when the "initial screen" switch 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 finishing number counter and the cycle time timer are cleared as follows.

In the initial screen of FIG. 36, "Production operation"
When the switch part of is pressed, the screen of "Production operation" of FIG. 41 is displayed.
Screen. 33. When the "guidance information" switch is pressed on the screen, the screen shown in FIG. 33 is displayed, the switch labeled "PCB finishing guide" is pressed, and the "erase" switch is pressed, the production finishing number counter is displayed. And, the production finishing number cumulative counter is cleared and the display of the totalized value of the item becomes “0”. Then, when the "Automatic driving guide" switch is pressed and the "Delete" switch is pressed on the same screen, the cycle time timer and elapsed timer are set to "0", and the display of the aggregate value of the item is "0". It will be. In addition, as for the display of the aggregated value, the value of the production finishing number cumulative counter is displayed in the "board finishing guide", and the "automatic operation guide" is displayed.
The value of the elapsed timer is displayed. Further, when the display of the totalized value of the item is "0", such an operation is not necessary.

Next, the "screen return" switch is pressed to return to FIG. 42 and the "production operation" switch is pressed to press the screen shown in FIG.
Return to the screen of, and start key (181) of the operation unit (180)
When is pressed, the automatic operation for mounting the chip component (5) is started.

First, a head number indexing operation is performed.

That is, when the turntable (13) is stopped, the sensor (200) is in the "light incident" state, and the sensors (201) (202) (203) (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” ...
And the mounting head (1
The head number of 5) is determined and stored in the RAM (172), and thereafter, the state of the head number is grasped for each intermittent rotation of the turntable (13).

Next, a nozzle number indexing operation is performed.

That is, with respect to the mounting head (15) having the head number "1" which is currently stopped in the nozzle selection station, the lever (79) and the lever (77) are used to rotate the lever (79) and the rod (77). 72) rotates clockwise in FIG. 8 and the lifting member (68), that is, the bit (66) descends. Bit (66) descends and motor (69)
Is rotated through the gears (70) and (71) to be fitted in a groove (52) to be fitted, and the rotating body (40) is rotated. Rotation of the disk (122) causes some slit (1
23) is detected by the transmitted light type sensor (126), the output thereof causes the CPU (170) to stop the motor (69) and each sensor (S) of the nozzle position identification sensor (113).
1) Capture the outputs of (S2) and (S3). At this time,
The sensor (S1) (S2) is in the position as shown in 7.
If all the outputs of (S3) are "0", the nozzle number "1"
It is determined that the suction nozzle (14) has stopped at the position where it is used and is stored in the RAM (172). Next, if the turntable (13) is intermittently rotated and the mounting head (15) of head number "2" is stopped at the nozzle selection station, the nozzle number is similarly detected and stored.

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

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

First, the reel number "050" of the step number "001" is read, it is judged from the part data of FIG. 30 that the component type "B1" should be sucked, and the suction nozzle used from the parts library data of FIG. It is read that the nozzle type in (14) is "N1". From the nozzle data shown in FIG. 31, assuming that the head number of the mounting head (15) currently stopped at the nozzle selection station is "1", the CPU (170) causes the suction nozzle (14) having the nozzle number "2". ) Is to be used, and the suction nozzle (14) is selected in the station. 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). When the proximity sensor (124) is lowered and it is confirmed that the proximity sensor (124) is "ON", the motor (69) is rotated by 60 degrees in the direction in which the nozzle number "1" is selected. Here, the sensor (126) is connected to the slit (12
3) is confirmed, the nozzle position identification sensor (113) determines the nozzle number in the same manner as described above, and the outputs of the sensors (S1) (S2) (S3) are "0".
Make sure that they are "0" and "1". If so, it is determined that the nozzle number "2" has been selected. If a different output is detected here, the head origin return abnormality counter counts "1" as the origin return abnormality. In this case, the nozzle number "2" is selected and the counter remains "0". I shall.

In this way, when the suction nozzle (14) is selected, the mounting head (15) reaches the nozzle entry / exit 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 to the storage position by the first contact table (20), and the lower engaging claws (48). ) Is locked by the locking claw (45),
The engaging claw (45) of the suction nozzle (14) to be used is such that the lever (44) on which the engaging claw (45) is formed rotates the nozzle release lever (84) counterclockwise in FIG. Since it is oscillated in the clockwise direction in the figure due to the movement, it does not engage with the lower engaging claw (48), so that 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 type of parts to be installed is "B
1 ”, the nozzle height“ L ”is read from the parts library data of FIG. 29, and the CPU (170) does not operate the solenoid (100) and the clutch lever (98) is in a state in which the lever (95) is locked. The suction nozzle (14) is left at the lowermost position without lowering the mounting head (15) as it is.

At this time, the nozzle height detecting sensor (15
If 4) is shielded from light, it is judged to be normal, and if it is in the light-transmitting state, it is judged to be an up / down switching abnormality, and the up / down switching abnormality number counter counts "1", but it is judged to be normal at the lowermost position. And

Next, when the mounting head (15) reaches the suction correction station, the suction nozzle (14) (nozzle number "2" to be used, which is located on the outermost side from the rotation center of the turntable (13), should be used. Is rotated 90 degrees clockwise in FIG. 2 in the same manner as 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) so that the supply table (7) is linearly guided (12). Then, the component supply device (8) with the reel number “50” is stopped at the component suction position of the suction nozzle (14) to be used in the suction station. And
As the mounting head (15) is lowered, the suction nozzle (14) is lowered and the chip component (5) of the component type "B1" is suctioned and taken out. 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.

In the station, the reel number "5"
The reel suction number counter of "0", the nozzle suction number counter of the nozzle number "2" of the head number "1", the suction number counter for nozzle skip of the same nozzle number, and the nozzle use number counter of the same nozzle number respectively set to "1". Count.

Next, when the mounting head (15) reaches the component posture detection station, the component presence / absence detection sensor (11) at a position aligned with the suction nozzle (14) at the lowest end position.
3) and the component attitude detection sensor (119) detect the presence or absence of the chip component (5) and whether or not the component is standing. Without both, it is considered normal.

Next, when the recognition station is reached, the presence or 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 of the positional deviation 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 the angle correction motor (178) beforehand
After being rotated by the rotation of the rod (77), the raising and lowering member (68) is lowered by the swing of the swing lever (72) by the upward movement of the rod (77), so that the bit (66) is inserted into the fitted groove (52). )
Fit together. Then, the motor (178) is rotated to correct the angular deviation recognized by the component recognition device (16) so that the chip component (5) is rotated by "θ1" of the step number "001" of the NC data. Is rotated. The corrected rotation angle amount is stored in the RAM (172).

Next, when the mounting head (15) reaches the mounting station, a correction amount for correcting the positional deviation recognized by the component recognition device (16) is added to the X-axis motor (2) and the Y-axis motor. (4) is rotated to move the X table (1) and X table.
The Y table (3) moves, and the (X
1, the chip component (5) is attached to the mounting head (1
It is mounted by lowering the suction nozzle (14) via 5).

The above is the mounting head (1
The operation up to the mounting station of 5) has been described. The mounting head (15) with the head number "2" is next to the mounting head (15) with the head number "1" due to the intermittent rotation of the turntable (13). When the nozzle selection station is reached, the CPU (170) should read the step number "002" of the NC data and select the nozzle number "3" from the reel number "20" as in the case of the head number "1". Make a decision. The nozzle selection device (19) selects the suction nozzle (14) with the nozzle number “3” in the same manner as described above, but the suction nozzle (14) with the nozzle number “3” is actually the nozzle data (nozzle data in FIG. 31). It is assumed that a type different from “N3”) is attached.

Next, the head (15) reaches the suction station through the nozzle entry / exit 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" could not be sucked.

Next, in the component attitude detection station, the absence / presence of the chip component (5) is detected by the component presence / absence detection sensor (116), and the continuous suction abnormality number counter of the nozzle number "3" of the head number "2", The above-mentioned suction-related counters such as the no-parts counter and the reel abnormal suction number counter of the reel number "20" count "1". After this, the operation in each station until the nozzle selection station of head number "2" is reached is not performed.

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

Next, for 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 circuit board (6) up to is performed.

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

Next, the component mounting operation is similarly performed for the mounting heads (15) with the head number "9" and thereafter, and it is assumed that the head number "24" and the next head number "1" have operated without any abnormality. To do. Therefore, only the counter that counts the number of times of suction described above is counted, and the counter that counts abnormal suction remains as described above.

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

Next, the mounting head of head number "3" (1
5) is automatically skipped and head numbers “4” to “7”
The mounting heads (15) up to (7) normally perform the component mounting operation.

Next, the mounting head of head number "8" (1
When the suction nozzle (14) of nozzle number "2" of 5) is selected and the chip component (5) is normally sucked by the suction station, the nozzle number "2" of head number "8" continues. The adsorption abnormality number 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, when the suction nozzle (14) of the nozzle number "3" of the head number "2" is selected again and the chip component (5) cannot be sucked, the continuous suction abnormality number counter of the nozzle (14) is selected. Becomes "3", which is the same as the number of times of continuous adsorption abnormality number stored in the memory.
(170) stores the automatic skip of the head number "2" and the nozzle number "3" in the RAM (172). CRT (1
In 87), the display of automatic nozzle skip is added in red characters as shown in FIG.

Next, the head number "7" is operated as described above, the nozzle number "2" is selected for the head number "8", and the chip part (5) is sucked in the standing state in the suction station. Then, the standing of the component is detected by the component posture detection sensor (119) in the component posture detection station. Then, the nozzle abnormal suction number counter, the nozzle suction number counter, the nozzle skip abnormal suction number counter, and the nozzle skip suction number counter are incremented by "1", and the continuous suction abnormality number counter is also counted by "1".

Next, the above operation is repeated, and the suction nozzle (1 with the nozzle number "2" of the head number "8" is
The continuous suction abnormality number counter does not become "3" depending on the suction state of 4), but the nozzle abnormality suction number counter does not count before the nozzle suction number counter counts "321" stored in the nozzle suction number memory. When the number of “123” stored in the memory is counted, the CPU (170) determines that the nozzle warning adsorption rate has been reached, the yellow part of the tower light (185) blinks, and the buzzer (186) sounds, The CRT (187) is used as a warning screen indicating "deterioration of adsorption rate" as shown in FIG. The color of the warning is displayed in yellow. When the nozzle abnormal suction number counter reaches "123", the counter and the nozzle suction number counter are cleared. The buzzer (186) and the tower light (185) let the user know that a warning has been issued, and when the user comes to the electronic component automatic mounting 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 content of the warning. The user may stop the device and check the suction nozzle (14) for the content of the warning on this screen, but if there is something else or if he does not want to stop the component mounting operation, leave it as it is. . When the return key (183) is pressed in this state, C
The screen of RT (187) is a screen showing that the automatic operation is being performed as shown in FIG.

Since no action has been taken on the suction nozzle (14) with the nozzle number "2" having the head number "8", the standing state frequently occurs after that, and the continuous suction abnormality count counter shows "3". If not counted, CR
A warning is issued on the screen of T (187), but before the nozzle skip suction number counter counts "4321" stored in the nozzle skip suction number memory, the nozzle skip abnormal suction number counter is used for nozzle skipping. When "1234" stored in the abnormal suction frequency memory is counted, the CPU (170) determines that the suction nozzle (14) should be automatically skipped, and the RAM (172) stores the nozzle number "8" of the head number "8". Memorize the 2 ”automatic skip. In addition, the fact that the automatic skip of the nozzle has occurred is displayed on the CRT (187) in red characters as described above. In the case of this display, since the display contents up to FIG. 35 have already been cleared, only the occurrence of the automatic skip of this nozzle is displayed.

During this time, for the suction nozzle (14) on which the chip component (5) is normally sucked and mounted, the nozzle suction number counter, the nozzle skip suction number counter, the nozzle use number counter, and the cumulative suction number counter Only each adsorption operation is counted. Even if a suction error occurs on the way and is counted by the nozzle abnormal suction number counter or the like, the suction error does not occur continuously in the same suction nozzle (14), and the nozzle abnormal suction number counter is stored in the nozzle abnormal suction number memory. If the nozzle suction number counter counts "321" stored in the nozzle suction number memory before counting "123", the nozzle abnormal suction number counter and the nozzle suction number 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) with 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 adsorbed by the adsorption nozzle (14), and no component or standing of the component is detected by the component attitude detection station. Then, the counter corresponding to the suction nozzle (14) also performs counting, but the reel abnormal suction number counter and the reel suction number counter of the reel number “101” are respectively incremented by “1” (cumulative reel abnormal suction). The frequency counter is also incremented by "1".) In this way, each time the chip component (5) is taken out from the reel number “101” and 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”. If the reel abnormal suction number counter counts "123" stored in the reel abnormal suction number memory before the reel suction number counter counts "321" stored in the reel suction number memory, Is cleared and the reel number "10" is displayed on the CRT (187) screen.
It is reported that the adsorption rate of "1" has deteriorated, and the tower lamp (185) and the buzzer (189) also notify.

Next, when the mounting head (15) with the head number "10" reaches the nozzle selection station, if the bit (66) tries to descend and the proximity sensor (124) cannot detect the descending, The descending abnormality number counter counts "1". After that, the head (15) is not used until the next nozzle selection station is reached. Next, when the sensor (124) does not detect the descending of the bit (66) again when the nozzle selection station is reached, the bit descending abnormality number 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 skip of the mounting head (15) with the head number "10" is stored in the RAM (172). In addition to being stored, the CRT (187) is informed of the head skip in the same manner as described above in red characters.

While doing so, the step number for which the "C" column of the NC data in FIG. 28 is "E" is set to the CPU (17
0) read out, it is judged that the component mounting on the printed circuit board (6) is finished, and after the component mounting of the step number is finished, the substrate (6) is placed on the XY table (3) by an ejecting device not shown. More discharged. At this time, the production finishing number counter and the production finishing number cumulative counter are incremented by “1”, the next printed circuit board (6) is carried in, and each time the mounting of the chip component (5) on the board (6) is completed. Both counters are incremented by "1".

Next, when the mounting head (15) with the head number "5" reaches the nozzle selection station at the step number "008" of the printed circuit board (5) of some sheets, the reel number "106". The component type "B2" indicates that the nozzle type is "N4" and the nozzle number is "4", and the selection operation of the suction nozzle (14) is performed. When the mounting head (15) reaches the nozzle entry / exit station, the suction nozzle (14) of nozzle number "4" is projected as described above, but when the nozzle height selection station is reached, Since the nozzle height data of 29 is "H", the clutch lever (98) is disengaged by the operation of the solenoid (100), and the lift block (159) is lowered by the rotation of the cam (97) to lower the mounting head (15). And the suction nozzle (14) is moved to the second nozzle contact base (21).
And is pushed to the intermediate position. At this time, for example,
If the locking claw (45) cannot lock the suction nozzle (14) due to lack of the upper engaging claw (47) (see FIG. 14) or the like, then the mounting head (15) is rotated by the rotation of the cam (97). )
When the pressure 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 abnormality number counter and the up / down switching abnormality accumulation counter of the nozzle number “4” of the head number “5” are respectively set to “1”. "Counted. Next, the suction nozzle (14) with the nozzle number "4" with the head number "5" is used, and when an up / down switching abnormality is detected in the same manner, the counters advance by "1" respectively. Then, when the suction nozzle (14) is used again, both counters become "3" due to the abnormality detection, which is the same as the numerical value stored in the up / down switching abnormality frequency memory. The automatic skip of the nozzle (14) is
It is stored in 2). In addition, the same nozzle skip notification as that described above is given to the CRT (187) in red characters.

Next, it is assumed that the suction nozzle (14) with the nozzle number "5" having the head number "8" is clogged and the suction force is reduced. It was detected in the suction station in a normal state that it was in a normal state in the component posture detection station, but the chip component (5) was detected by the suction nozzle (14) while moving to the recognition station after that. ), The nozzle suction suction counter, nozzle suction suction counter, continuous suction suction counter, nozzle skip suction suction counter, nozzle skip suction suction counter, reel suction suction counter, reel suction suction counter , The suction abnormality counter, the nozzle usage counter, etc. are counted in the same manner as described above, but unlike the case where the no-component counter or the component standing counter is also counted when detected by the component posture counting station, It is counted by the counter without recognition parts. After that, when the suction nozzle (14) is used again to suction the chip component (5), the position of the chip component (5) is displaced with respect to the suction nozzle (14) and the one side of the chip component (5) is removed. When the two corners are hidden by the suction nozzle (14) and cannot be recognized by the component recognition device (16), they are counted by the recognition abnormality counter instead of the recognized component-free counter, the component-free counter and the component standing counter, and as described above. It is counted in other related counters.

Next, when the suction nozzle (14) with the nozzle number "5" having the head number "8" is used, the chip component (5) is normally sucked, and the component posture detection step is performed.
If no abnormality is detected in the operation and recognition station, the continuous adsorption abnormality number counter is cleared. Although the suction nozzle (14) does not make a suction error three times in a row, the nozzle suction suction counter is set to "123" before the nozzle suction count counter becomes "321". When counted, it is displayed on the screen of the CRT (187) that the suction rate of the suction nozzle (14) of the nozzle number “5” of the head number “8” has deteriorated and the tower lamp (185) and The user is notified by the buzzer (189). At this time, if the user operates to manually skip the suction nozzle (14) on the screen of the CRT (187) not shown, R
Nozzle number "5" with head number "8" in AM (172)
The skip of the suction nozzle (14) is stored.

Next, the component mounting operation is repeated in this way, and as described above, each time the printed circuit board (6) is finished, the production finishing number counter and the production finishing number accumulating counter count the finished number. When the 300 sheets stored in the memory are finished, a guide that the 300 sheets are finished is displayed as shown in FIG. At the time of this guidance display, the user can know that the guidance display has been made by the notification of the tower light (185) and the buzzer (189) different from the case where the adsorption rate is lowered. For example, in the display of the tower light (185), the green part lights up, and the interval of the intermittent sound of the buzzer (189) is made longer than when the adsorption rate is lowered. ) Screen is supposed to be set. By this notification, the user comes to the electronic component automatic mounting device, presses the alarm release key (195) in FIG. 34 to stop the alarms of the tower light (185) and the buzzer (189), confirms the screen of FIG. 34, and then returns. Key (18
Press 3) to return the CRT (187) to the screen shown in FIG. The production finishing number counter is cleared when "300" is counted, but the production finishing number cumulative counter is not cleared, and is thereafter counted each time the printed circuit board (6) is finished, and the production finishing number counter is counting "300". When the production finish number memory matches, the production finish number cumulative counter "600" notifies that 600 sheets have been finished as in the case of 300 sheets.

Next, in this way, the user is allowed to skip the mounting heads (15) and the suction nozzles (14) during the automatic operation in which the screen of the CRT (187) is in the state shown in FIG. If you want to know, you can know the contents as follows.

That is, first, when the switch portion of the "submenu" in FIG. 54 is pressed, a screen in which the display of "stopped" in FIG. 42 is changed to "in operation" is displayed, and the switch portion of "production control information" is displayed. By pressing, the screen shown in FIG. 55 is displayed.

Next, by pressing the switch portion of "head / nozzle skip information" on the screen, the screen shown in FIG. 22 is displayed. The 24 double circle small circles lined up on the outer circumference of the large circle on the screen correspond to the mounting heads (15) respectively, and the numbers in the large circles indicate the head numbers to which the respective small circles correspond. There is. The small circles with diagonal lines in FIG. 22 are actually displayed in a yellow color, which indicates that the mounting head (15) with the corresponding head number has a nozzle skip, which is described above. Suction nozzle (14)
Skipping is shown. In FIG. 22, a small circle with a meshed line is actually displayed in a red color, indicating that the mounting head (15) with the corresponding head number is skipped. The small circle corresponding to the mounting head (15) in operation is colored in white. The small circle of each double line is a switch part. By pressing the switch part of the head number "8" on the screen, the CRT
On the screen of (187), nozzle skip information is displayed as shown in FIG. 56, the nozzle number “2” is skipped due to a lower suction rate, and the nozzle number “5” is manually skipped. Recognize. For the manual skip described above, select "Manual nozzle skip setting" on this screen.
It is set on a setting screen (not shown) that is displayed by pressing the switch section of.

Next, as shown in FIG. 57, the contents of the respective counters showing the nozzle operation information of the nozzle number "2" which is automatically skipped by pressing the switch portion of "nozzle 2" on the screen of FIG. Is displayed. Nozzle number "2" is displayed by pressing the "Page feed" switch in FIG.
The contents of the other nozzle operation information are shown in FIG. When the "page return" switch is pressed on the screen shown in FIG. 58, the screen returns to the screen shown in FIG. 57, and the screen return is pressed to return to FIGS. 56 and 22.

Next, the head number "1" is displayed on the screen of FIG.
When the switch part of "0" is pressed, a screen corresponding to FIG. 56 without a skip display is displayed, and when the switch part of "Page feed" is pressed, the screen of FIG. 59 is displayed and the bit lower limit continuation is displayed. It can be seen that the head is skipped due to an abnormality. By pressing the "screen return" switch on the screen, the screen returns to the screen of FIG. 22. However, even if the switch of the head number in operation is pressed on the screen of FIG. 22, the screen of FIG. And a screen corresponding to FIG. 59 can be displayed.

Next, when the "screen restoration" switch is pressed on the screen shown in FIG. 22, the screen shown in FIG. 55 is displayed. When the "device downfall list" switch is pressed, the CPU (170)
At this point, the non-adsorption rate is calculated by dividing the value of the adsorption abnormality counter by the value of the nozzle usage count counter for each head number and nozzle number except for the head skip or nozzle skip at this point. The head number and the nozzle number having the highest non-adsorption rate are stored in the adsorption rate lowering nozzle list memory, the second to fifth bad ones are stored, and the contents of the memory are displayed on the CRT (187). .

Also, the non-adsorption rate is calculated by dividing the value of the cumulative reel abnormal adsorption number counter for each reel number by the value of the cumulative adsorption number counter, and the reel number having the highest non-adsorption rate is listed in the adsorption rate lower reel list. Memory in the memory, and the second to fifth bad ones are stored in the CRT.
The contents of the memory are displayed at (187), and the screen of FIG. 32 is displayed. In the pick-up rate lowering reel list, what is displayed in parentheses together with the reel number such as "R101" indicates the component type of the chip component (5) supplied by the component supply device (8) of the reel number. Shows. The nozzle number of the suction nozzle (14) is displayed in parentheses together with the head number and the nozzle number in the suction rate lowering nozzle list. When each switch of the suction rate lowering nozzle list is pressed on this screen, the values of the suction abnormality counter and the nozzle usage number counter similar to those in FIG. The respective values of the standing counter, the no-recognition component counter, and the suction abnormality counter are displayed. Further, as shown in FIG. 58, the current total value of the respective values of the nozzle abnormality suction number counter and the nozzle suction number counter is the nozzle warning suction rate column. Displayed in
The current total value of the respective values of the nozzle skip abnormal suction number counter and the nozzle skip suction number counter is displayed in the column of the automatic nozzle skip suction rate. A screen (not shown) displaying 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 when each switch of the suction rate reduction reel list is pressed. Becomes The user can grasp the worst suction rate of each suction nozzle (14) and each component supply device (8) from the information displayed on the screen, and other suction nozzles (14) Also, since it can be seen that the component supply device (8) is better than these, if there is no problem displayed, it can be determined that there is no problem as a whole. The screens in FIGS. 22 and 32 are displayed in FIG. 4 even when the automatic operation is stopped.
1 and the screen of FIG. 42, the screen of FIG. 55 can be displayed from the screen in which the driving is stopped.

Next, when the automatic operation is continued and the mounting head (15) with the head number "1" reaches the nozzle selection station, the suction nozzle (14) with the nozzle number "2" of the mounting head (15). ) Is used at the time of mounting the previous component and protrudes to the lowermost position, and the suction nozzle (14) having the nozzle number “2” is also used at the time of suctioning the next component of the mounting head (15). If the suction nozzle (14) with another nozzle number is selected, the suction nozzle (1) with the nozzle number “2” is placed at the same position as in FIG.
4) is positioned and the RAM (172) stores that the suction nozzle (14) with the nozzle number “2” was used, so the CPU (170) uses the suction nozzle with the nozzle number “2” to be used. It is confirmed that the nozzle (14) is projected to the lowermost position and that the other suction nozzles (14) are stored in the storage position.

That is, while the mounting head (15) is stopped at the nozzle selection station, the output of the used nozzle detection sensor (129) is observed and the light from the light projector (127) reaches the suction nozzle (14). Since it is shielded from light, it is determined whether there is a suction nozzle (14) to be used, and the nozzle detection sensor (14
Since the light from the projector (147) of 6) is received by the light receiver (148), the suction nozzle (1) of FIG.
It is judged that the suction nozzle (14) on the left of 4) is housed. Further, while the mounting head (15) is stopped and while moving, all the suction nozzles (14) pass through the optical axis of the light from the light projector (150) of the nozzle detection sensor (149). Since 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 stored.
The suction nozzle (1) other than the suction nozzle (14) to be used
It is confirmed that all 4) are stored.

Next, even if the mounting head (15) stops at the nozzle entering / exiting station due to the rotation of the turntable (13), the solenoid (100) of the station does not operate and the clutch lever (98) moves. Since the mounting head (15) does not descend because it is locked to the lever (95), the head (15) does not descend similarly in the nozzle height selection station, and the suction nozzle (14) of nozzle number "2" ) Keeps projecting to the lowermost position, and then N
Parts supply device with reel number specified in C data (8)
Then, the chip component (5) is sucked and attached to the printed circuit board (6).

Next, the user does not turn off the power after stopping the automatic operation by pressing the stop key (182) in order to remove the clogging of the suction nozzle (14) of the nozzle number "5" of the head number "8". It is assumed that the suction nozzle (14) is cleaned to eliminate the clogging, and the start key (181) is pressed with the suction nozzle (14) protruding to the lowermost end position to restart the automatic operation. In addition, the mounting head (1
In 5), it is assumed that the suction nozzle (14) with the nozzle number “1” having the nozzle type “N1” is used in the previous mounting operation and protrudes to the lowest end position.

Next, when the suction nozzle (14) used in the mounting head (15) has the nozzle number "1", the CPU (170) should use the suction nozzle (14) in the same manner as described above. ) Is projected, and it is confirmed whether or not the unused suction nozzle (14) 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
9) detects that the suction nozzle (14) with the nozzle number “1” is at the lowermost position, and the nozzle detection sensor (14)
It is detected by 6) that the suction nozzle (14) with the nozzle number “2” is housed. Nozzle detection sensor (1
49) is blocked by the suction nozzle (14) of nozzle number "5" when the mounting head (15) moves, and its output is kept in the "OFF" state as shown in FIG. 60. It is determined by reading (170) that the nozzles (14) other than the suction nozzles (14) to be used are protruding, and all the suction nozzles (14) should be housed at the nozzle entry / exit station. To be judged.

Therefore, when the mounting head (15) moves to the nozzle entry / exit 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 ejected is projected to the lowermost position by engaging the nozzle release lever (84) with the lever (44). Then, when the head (15) moves to the nozzle height selection station, the mounting head (15) is not lowered, and the chip component (5) is sucked and mounted in the same manner as described above.

Next, the suction nozzle (1
When the mounting head (15) in which 4) protrudes to the intermediate position reaches the nozzle selection station and the protruding suction nozzle (14) is used also in the 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, in the nozzle entry / exit station, the mounting head (15) is lowered and used after all the suction nozzles (14) have been stored. The nozzle (14) is turned on and pushed into the intermediate position in the nozzle height selection station.

Next, the suction nozzle (1
When checking 4), the stop key (182) is pressed to stop the automatic operation, and the skipping suction nozzle (14) is checked by displaying the screen of FIG. It can be seen that the suction nozzle (14) with the nozzle number "3" of different number is replaced with the correct nozzle type, and the suction nozzle (14) with the nozzle number "2" of the head number "8" is worn. This is inferred and confirmed from the fact that there are many chips in FIG. 57, and a new one is replaced. This replacement work shall be performed with the power off. After the power is turned on again, the skip information and the contents of each counter have been backed up and are still stored. Therefore, the counters related to the suction nozzle (14) are cleared by a screen not shown for these replaced items. For the replaced suction nozzle (14), the skip is canceled by pressing the "nozzle skip cancellation" switch on the screen of FIG.
The skip memory is cleared from (172).

Next, on the screen of FIG. 41, the start key (18
When 1) is pressed, since the head number and the nozzle number are not stored because the power is turned off, the automatic operation is restarted, but the head number is first indexed as described above, and each mounted head (15) is described above. As described above, the nozzle number is determined in the nozzle selection station. The indexing operation is not performed for the mounting head (15) having the head number to be skipped that has not been cleared from the RAM (172).

Next, when the automatic operation continues and the cycle time timer reaches 400 hours stored in the elapsed time memory, "automatic operation 400" is performed based on the time stored in the elapsed timer.
"Elapsed time" is displayed in green characters on the screen similar to FIG. Although the cycle time timer is cleared, the elapsed time timer is not cleared, and when the cycle time timer next elapses 400 hours, the fact that the elapsed time timer 800 hours has elapsed is displayed. Both timers do not count the passage of time while the power is off and during automatic operation, but keep the elapsed time until now and restart the counting of time when automatic operation is restarted. To do.

Next, the automatic operation continues, 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. Memorized "10000"
52, the screen similar to that shown in FIG. 52 displays “head number“ 1 ”.
-Nozzle number "6" -Nozzle type "N4" -1000
"Used 0 times" is displayed in green letters.

In this embodiment, the used nozzle detection sensor (119), the nozzle detection sensor (146) and the nozzle detection sensor (149) are provided in the nozzle selection station,
Next, when the nozzle (14) used by the head (15) is the same as the nozzle (14) used last time, the suction nozzle (14) is not stored in the nozzle in / out station, so that the unused nozzle protrudes. The sensor similar to the sensor (119) (146) (149) is arranged in a similar manner in the station before and after the nozzle entrance / exit station or the suction correction station thereafter. Nozzle (1) to be used after storing and projecting the nozzle (14) in the nozzle loading / unloading station.
It may be possible to confirm whether or not 4) is projected and the unused nozzle (14) is housed. It is possible to provide a sensor for this purpose even in the suction correction station, but the position cannot be arranged in the same manner because the position of the nozzle (14) to be used changes in that station. Since the nozzle (14) is at the head position in the moving direction of the head (15), two sensors are provided, a sensor for detecting the nozzle (14) used and a sensor for detecting the head nozzle (14) of the unused nozzle. As for the unused nozzles, the “OFF” output of the sensor is generated by the off-delay circuit as in the above.
It may be held in the same manner as 0 so that even one light can be detected even if it is shielded.

When the suction nozzle (14) projects to the lowermost position, the locking claw (45) is pushed by the upper engaging claw (47) more than when the lever (44) is at any other position. Assuming that the position is rotated to, the lever (4
A sensor for detecting the difference in the rotational position of 4) is provided to detect whether or not it is at the lowermost position, and when the lever (44) is in the housed state of the nozzle (14), it is different from the other protruding state. If it is in the moving position, the difference in the turning position of the lever may be detected to detect whether or not the nozzle (14) projects from the storage position.

[0162]

As described above, according to the present invention, since it is detected whether or not the unused nozzle is projected from the storage position, it is possible to prevent components from being sucked with the unused nozzle being projected thereafter. .

[Brief description of drawings]

FIG. 1 is a plan view showing the position of each sensor in a nozzle selection station.

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

FIG. 3 is a side view of an electronic component automatic mounting device 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 a 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 entry / exit station.

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

FIG. 11 is a side view showing a nozzle entry / 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 in 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 showing an output state of a nozzle position identification sensor for each nozzle number.

FIG. 22 is a screen view displayed via a touch panel switch.

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

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

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

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

FIG. 27 is a control block diagram of the present invention.

FIG. 28 is a diagram showing NC data.

FIG. 29 is a diagram showing parts library data.

FIG. 30 is a diagram showing part data.

FIG. 31 is a diagram showing nozzle data.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

FIG. 57 is a screen diagram 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 abscissa represents the output of the sensor with the passage of time.

[Explanation of symbols]

 (5) Chip-shaped electronic component (electronic component) (6) Printed circuit board (14) Suction nozzle (15) Mounting head (146) Nozzle detection sensor (detection means) (149) Nozzle detection sensor (detection means) (170) CPU (Detection means)

Claims (1)

[Claims] 1. A suction nozzle that is used to suck an electronic component out of a plurality of suction nozzles that can be moved in and out of a mounting head protrudes to a use position, and an unused nozzle remains in a storage position to take out an electronic component and print it. An electronic component automatic mounting apparatus for mounting on a substrate, comprising a detection means for detecting whether or not an unused nozzle is projected from a storage position before suctioning the component.