JP2003283190A - Mounting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting system in which a suction nozzle can be fixed/ removed efficiently to/from a head through a simple arrangement. <P>SOLUTION: The mounting system comprises a base, a board moving table moving to the left/right direction while holding a board in substantially horizontal attitude, a component feeding section disposed contiguously to the board moving table in the longitudinal direction, and a head unit for picking up a component from the component feeding section by moving in the longitudinal direction and mounting it on the board. The board moving table has a replacing nozzle containing section which moves to the left/right as the board moving table moves to the left/right and faces the vertically underside of the head unit as the it moves in the longitudinal direction. Under this positional relation, the head unit can fix a replacing nozzle contained in the replacing nozzle containing section smoothly (or can remove a nozzle fixed to the head unit and place it in the replacing nozzle containing section). <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounter for mounting components on a substrate, and more particularly to a mounter suitable for attaching / detaching a suction nozzle, which is required with a simple structure.

[0002]

2. Description of the Related Art As an example of a mounting machine for mounting and mounting a chip resistor, a chip capacitor, an IC (Integrated Circuit), etc. on a substrate, there is a printed wiring board assembling apparatus described in Japanese Patent No. 2919486.

In this printed wiring board assembling apparatus, the printed wiring board positioned and held on the X table is
Mount and mount components that have been sucked onto the suction nozzle (take-out nozzle). At that time, positioning of the suction nozzle with respect to the printed wiring board in the X direction (horizontal direction) is performed by moving the X table itself in the horizontal direction. Positioning of the suction nozzle with respect to the printed wiring board in the Y direction (front-back direction) is performed by moving the mounting (suction) head equipped with the suction nozzle in the Y direction (single axis movement).

Thus, instead of fixing the substrate and moving the mounting head in both the X and Y directions for mounting and mounting the components on the substrate, the movement of the mounting head is limited to, for example, only the Y direction. A mechanism for moving the substrate side in the X direction is known.

[0005]

By the way, in the mounting machine, generally, the suction nozzle provided in the mounting head needs to be replaced according to the size and weight of the component to be suctioned. Nozzles with a large suction diameter for small parts cannot pick up parts due to gaps, and nozzles with a small suction diameter for large and heavy parts do not have sufficient suction force to achieve stable suction operation. Because.

In order to replace such a suction nozzle, a mounting machine is usually provided with a suction nozzle housing portion, and the replacement suction nozzle is housed in this suction nozzle housing portion. In the above-mentioned publicly known documents, it can be seen from the drawings that the nozzle accommodating portion is provided on the side of the X table, but there is no mention of its detailed configuration and operation.

How efficiently the suction nozzle can be replaced and how simple the structure can be made are important matters for improving the mounting efficiency (shortening the tact time) and reducing the cost of the apparatus. .

The present invention has been made in consideration of the above circumstances, and is a mounting machine for mounting components on a substrate, in which the suction nozzle can be efficiently attached to and detached from the head with a simple structure. The purpose is to provide.

[0009]

In order to solve the above-mentioned problems, the present invention provides a base and a substrate moving unit provided on the base, capable of holding the substrate in a substantially horizontal posture and moving in the horizontal direction. A table, and is provided adjacent to the substrate moving table in the front-rear direction,
For picking up a component, a component supply unit capable of arranging a plurality of the components in the front-rear direction, and moving in the front-rear direction from above the arrangement of the plurality of components to above the substrate moving table, A head unit that picks up a component and mounts the picked-up component on the held substrate, and holds the nozzle in a replaceable manner, wherein the substrate moving table has a replacement nozzle housing portion, The replacement nozzle accommodating portion moves left and right as the substrate moving table moves in the left-right direction, and opposes substantially vertically below the head unit by the left-right movement and the front-back movement of the head unit. And

That is, this mounting machine is a mounting machine in which the substrate moving table moves in the left-right direction and the head unit moves in the front-rear direction, and the replacement nozzle accommodating portion is provided in the substrate moving table. Further, the replacement nozzle storage part moves left and right as the board moving table moves left and right, and by this and the head unit front-back movement, the replacement nozzle storage part is positioned substantially vertically below the head unit. Has been Therefore, in this positional relationship, the head unit can smoothly mount the replacement nozzle housed in the replacement nozzle housing (or detach the nozzle already mounted in the head unit into the replacement nozzle housing). it can.

In other words, there is no need for a new mechanism for moving the replacement nozzle accommodating portion for attaching / detaching the nozzle to / from the head unit, and the head unit and the replacement nozzle accommodating portion for attaching / detaching the nozzle to / from the head unit. It is also easy to face and at a predetermined position by the above-mentioned left-right movement and forward-backward movement. Therefore, the suction nozzle can be efficiently attached to and detached from the head with a simple configuration.

Incidentally, the "front-back direction" with respect to the "left-right direction"
Do not necessarily have to be at right angles. This is because the above description holds even if the relationship intersects diagonally (oblique system). This also applies to the following.

Further, as an embodiment of the present invention, the replacement nozzle accommodating section is provided on the component supply section side of the substrate moving table, and a plurality of replacement nozzles can be accommodated in the left-right direction.

According to this, the head unit can be moved to the component supply portion in a short time after the nozzle replacement, and the efficiency of the mounting operation can be improved when the nozzle replacement is performed relatively frequently.

As another embodiment, the replacement nozzle storage section is provided on the opposite side of the substrate moving table from the component supply section side, and a plurality of replacement nozzles can be stored in the left-right direction. .

According to this, since the distance between the substrate moving table and the component supplying section can be further shortened, the head unit can move between the substrate moving table and the component supplying section in a shorter time, and the nozzle replacement is possible. When is relatively infrequent, it is possible to improve the efficiency of the mounting operation.

Further, as an embodiment, the replacement nozzle housing portion can house a plurality of replacement nozzles in the front-rear direction in addition to the left-right direction. According to this, more replacement nozzles can be provided, and it is possible to cope with a case where a large number of types of nozzles are used.

Further, as an embodiment, the substrate moving table further has a conveyor for transporting the substrate to be held in the left-right direction. According to this, it is not necessary to separately provide a mechanism for transporting the substrate left and right for loading (or unloading) the substrate into the mounting machine, separately from the substrate moving table.

Further, as an embodiment, the present invention further comprises an image pickup device which is provided on the base and between the board moving base and the component supply unit and which picks up an image from the lower side to the upper side. By imaging the head unit with the imaging device, it can be confirmed whether or not the head unit holds the nozzle.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are configuration diagrams schematically showing a mounting machine according to an embodiment of the present invention. FIG. 1 is a plan view and FIG. 2 is a left side view.

As shown in FIGS. 1 and 2, this mounting machine includes a base 11, X-direction guide rails 12a and 12b,
Substrate conveyors 13a and 13b, X-direction engaging member 1
4, X-direction servo motor 15, X-direction encoder 16,
X-direction feed screw 17, X-direction feed screw receiver 18, fixed camera lighting device 19, fixed camera 20, feeder bank 21, tape feeder 22, head unit 23,
Adsorption head 24, Y-direction frame 25, Y-direction guide rails 26a and 26b, Y-direction servomotor 27, Y-direction encoder 28, Y-direction feed screw 29, Y-direction feed screw receiver 30, moving camera 31, replacement nozzle storage section. Three
2, conveyor belt variable timing belt 8, pulley 9a
And 9b, the substrate moving table 10 is provided. Each tape feeder 22 has a component suction point 22a,
A suction nozzle 24 a is attached to the lower end of the suction head 24.

As shown in the figure, on the base 11, there is a mechanism for holding the substrate in a horizontal position and moving it in the X direction, including the substrate moving table 10 (in FIG. 1, this mechanism is used). The illustration of the mechanism for moving in the X direction is partially omitted.) The substrate moving table 10 includes a nut member fixed to the substrate moving table 10, that is, an X-direction engaging member 1.
4 is engaged with the X-direction feed screw 17. The X-direction feed screw 17 is installed between the X-direction servo motor 15 and the X-direction feed screw receiver 18, and is rotated by a predetermined amount by the X-direction servo motor 15, thereby being connected to the X-direction engagement member 14. The substrate moving table 10 is moved in the X direction. The X-direction encoder 16 constitutes an X-axis servo device together with the X-direction servomotor 15, and functions as a sensor and an actuator as the servo device, respectively.

In addition, the substrate moving table 10 moves in the X direction on a pair of X direction guide rails 12a and 12b provided in parallel with each other in the X direction for smooth movement. Further, on the substrate moving table 10, a pair of substrate conveyors 13a and 13b are provided at the uppermost position in parallel with each other in the X direction.

The board conveyors 13a and 13b are for carrying out the printed circuit board P on which the components are mounted and for carrying in the printed circuit board P on which the components are mounted. The printed circuit board P is moved by a belt (not shown) which moves in the X direction. Mobile stand 10
It is conveyed in the X direction above (an example of the mechanism of the substrate conveyor will be mentioned later again (FIG. 5)). The printed circuit board P is stopped and fixed at a predetermined position with respect to the substrate moving table 10 by a clamp mechanism (not shown).

The substrate conveyor 13a is constructed so that it can be moved in the Y direction corresponding to the width of the substrate P. That is, the board conveyer 13a includes the pulleys 9 at both ends in the Y direction.
It is connected to a conveyor width changing timing belt 8 which is stretched between a and 9b in the Y direction. Then, by rotating and moving the timing belt 8 by a motor (not shown), the distance between the substrate conveyor 13a and the opposing substrate conveyor 13b is changed (the state shown is the case where the maximum width is set). is there).

This variable width mechanism is arranged so as to move the side of the board conveyor 13b, or
It is also possible to move both a and 13b. In this embodiment, in order to reduce the tact time by setting the distance between the tape feeder 22 as the component supply unit and the substrate P to be short, the side of the substrate conveyor 13a opposite to the tape feeder 22 is moved. There is.

The substrate conveyors 13a and 13b are X
Regarding the direction, it is integrated with the substrate moving table 10, and by moving the substrate moving table 10 in the X direction, it is possible to change the end position for loading or unloading the printed circuit board. The maximum allowable movement width of the board conveyors 13a and 13b in the X direction is within a range that does not interfere with the surroundings of the mounting machine on which the mounting machine is installed, and the X direction guide rail 1
It depends on the X-direction length of 2a and 12b. If the length of the printed circuit board in the X direction is equal to or less than the maximum allowable length that is slightly larger than the maximum allowable movement width, mounting is possible.

Further, as shown in the drawing, the substrate moving table 10 has a tape feeder 22 having a replacement nozzle storage portion 32 capable of storing a plurality of replacement nozzles in the X direction as a component supply portion.
It is provided on the side. As a result, the replacement nozzle housing portion 32 moves in the X direction at the same time as the movement of the substrate moving table 10 in the X direction.

Further, the width in the X direction of the replacement nozzle accommodating portion 32 is set to be within the maximum allowable length in the X direction of the printed circuit board P. As a result, the replacement nozzle housing 32
Any of the replacement nozzles (or empty seats therefor)
Also, the suction head 2 is moved by moving the substrate moving table 10 in the X direction.
4 can be located opposite to each other (the suction head 24 can be moved in the Y direction as described below).

As shown in the figure, the substrate moving table 10,
There is a mechanism including the Y-direction frame 25 so as to straddle the board conveyors 13a and 13b and extend this direction downward in the Y-direction of FIG. The Y-direction frame 25 is provided on the base 11 and is used for picking up a component and mounting the component on the substrate P.
3 is provided and is moved in the Y direction.

A pair of Y-direction guide rails 26a and 26b are provided on the upper portion of the Y-direction frame 25 in parallel with each other.
The movements in the Y direction are guided by a and 26b. Further, the head unit 23 is engaged with a Y-direction feed screw 29, which is arranged in the Y-direction frame so as to extend in the Y-direction, by an engaging member made of a nut member (not shown). By rotating a certain amount, it moves in the Y direction by a predetermined amount via the engaging member.

The Y-direction feed screw 29 is installed between the Y-direction servomotor 27 provided on the side closer to the substrate moving table 10 and the Y-direction feed screw receiver 30 provided on the opposite side. . Further, the Y-direction encoder 28 constitutes a Y-axis servo device together with the Y-direction servo motor 27, and functions as a sensor and an actuator as the servo device, respectively.

The Y-direction servomotor 27 can be provided at the end of the Y-direction feed screw 29 on the side closer to the tape feeder 22. In this embodiment, an operator works on the left side of FIG. 1 in the X direction and the lower side of FIG. 1 in the Y direction in order to replace the tape feeder 22 in consideration of the actual operating state. Because it is a space,
In order to avoid the projection shape of the device on these sides and improve the workability of the operator, the above-mentioned arrangement is adopted. This also realizes a compact shape in the Y direction as a whole.

The head unit 23 includes the Y-direction frame 2
The suction head 24 is guided and moved as described above by the mechanism on the fifth side, and the suction head 24 is directly between the component suction point 22a of the tape feeder 22 which is the component supply unit, the substrate P, and the replacement nozzle storage unit 32. Up and down (Z
In order to be able to go back and forth), it has a shape that projects to the left in FIG. Such an overhanging shape is convenient because it is easy to secure a space around the suction head 24 when the head unit 23, particularly the suction head 24 thereof, is maintained in the working space described above.

In the present embodiment, the head unit 23 is provided with four suction heads 24 arranged in a line in the Y direction, and can be moved up and down independently of each other by an elevating mechanism (not shown), and its axis is rotated. It can be rotated (in the R direction). Further, at the time of picking up components, a negative pressure is supplied from a negative pressure supply means (not shown) to the suction nozzles 24a provided at the lower end of each suction head 24. As a result, the component can be attracted to the suction nozzle 24a by the suction force.

The replacement nozzle housing 32 is as follows. FIG. 6 is a diagram schematically showing a configuration example of the replacement nozzle housing section 32. A storage hole for storing the suction nozzle 24a is formed in the base member 32A. This hole has three types of storage holes 31A1 to 31A of different sizes.
3, each of the storage holes 31A1 to 31A3 has three types of suction nozzles 24a1 of three sizes according to the magnitude of the suction force.
24a3 can be stored. Base member 3
A shutter 32B is provided on the upper surface of 2A so as to be fixed in the vertical direction and movable in the horizontal direction.
-24a3 slides during the detaching operation from the suction head 24.

The suction head 24 is replaced by the replacement nozzle housing 32.
When exchanging the suction nozzle 24a between and, the following operation is performed, for example. First, among the suction heads 24, the one for which the nozzle is to be replaced is aligned with the vacant seat position of the replacement nozzle housing 32 for housing the nozzle 24a. This includes the replacement nozzle housing 3 in the X direction.
2 to move the substrate moving table 10 to a predetermined position, and
The head unit 23 is moved to a predetermined position in the direction.

Next, the suction head 24 whose nozzle is to be replaced is lowered, and the suction nozzle 24a is inserted into the storage hole 32A1 (32A).
2, 32A3) rushes into the vacant seat position. Here, the shutter 32B is moved in a predetermined direction (for example, the X direction or the Y direction) to move the flange portion 24 of the suction nozzle 24a.
It is engaged with a11 or the shoulder portion 24a21 or 24a31. Thereafter, the suction head 24 is raised to move the balls of the notch mechanism (not shown) of the suction head 24 into the ball grooves 24a12, 24a22 or 24 of the suction nozzle 24a.
The suction nozzle 24a is released from the a32 and the storage hole 31A
1 (32A2, 32A3) is left to be placed. After that, the shutter 32B is returned in the opposite direction to the above, and the upper portions of all the storage holes 31A1, 32A2, 32A3 are left open.

Next, the suction head 24 is aligned with the replacement nozzle storage portion 32 in which the suction nozzle 24a to be newly mounted is stored. To this end, the substrate moving table 10 is moved to a predetermined position in the X direction together with the replacement nozzle housing 32. Since the current position can be applied as it is to the Y direction, it does not need to be newly moved.

Then, the suction head 24 from which the suction nozzle 24a has been removed is lowered to the position of the suction nozzle 24a to be mounted in the replacement nozzle housing 32. The suction head 24 is lowered to move the tip 24a1 of the suction nozzle 24a.
3, 24a23 or 24a33 is fitted. At this time, the balls of the notch mechanism (not shown) of the suction head 24 are fitted into the ball grooves 24a12, 24a22 or 24a32 of the suction nozzle 24a, so that the suction head 24 is locked and held by the suction head 24.

After that, the suction head 24 is raised. As a result, the suction head 24 is in a state in which the suction nozzle 24a is mounted, and a new empty seat is created in the replacement nozzle housing 32. As described above, the suction nozzle 24a can be replaced.

The tip portion 24a2 of the suction nozzle 24a is
3 and 24a33, and ball groove 24a22 and 2
4a32 has a common shape. Corresponding to this, the head unit 23 is equipped with a total of four suction heads 24 of two types. On the other hand, the suction nozzle 24a is provided with a suction port (not shown), and each suction nozzle 24a1 to 24a3 has a plurality of types depending on its shape or size. Further, in the figure, 32C2 and 32C3 are plates made of an elastic body that serves as a cushion for supporting the suction nozzles 24a2 and 24a3 while protecting the suction surface.

The moving camera 31 provided in the head unit 23 recognizes the existence and the accurate position of the substrate P by picking up an image of the substrate P (especially the fiducial mark printed on the substrate P) from above. It is a thing. The moving camera 31 can also make a control unit (not shown) recognize the replacement history by imaging the replacement nozzle storage unit 32 from above every time the suction nozzle 24a is replaced. Further, by disposing a storage detection sensor in the replacement nozzle storage section 32, it is possible to make a control section (not shown) similarly recognize the replacement history.

The feeder bank 21 can fix a plurality of tape feeders 22 adjacent to each other and in a state where they are positioned. The tape feeder 22 is arranged in parallel with the substrate transport direction of the substrate conveyors 13a and 13b so that the additional component supply is in the X direction (from left to right in FIG. 1).

Here, each tape feeder 22 is constructed such that a tape containing and holding small piece electronic components such as ICs, transistors and capacitors at predetermined intervals is drawn out from the reel. 24a
As a result, the tape is intermittently sent out as the parts are picked up.

The X-direction coordinate of each of the component suction points 22a of the tape feeder 22 is made to coincide with the X-direction coordinate of the suction head 24. As a result, when the head unit 23 exists on the side of the tape feeder 22 that is the component supply unit on the Y-direction frame 25 (the state shown in the drawing), the head unit 23 moves in the Y-direction so that it is below the predetermined suction head 24. The component suction point 22a can be located. In this state, the individual suction heads 24 are moved up and down to pick up and pick up predetermined parts.

The fixed camera 20 has its imaging direction directed from the lower side to the upper side, and the X-direction coordinate of the optical axis of the fixed camera 20 substantially coincides with the X-direction coordinate of the suction head 23.
As a result, when the position of the head unit 23 in the Y direction is at the position of 23a shown in the drawing, it is possible to image the component sucked from below by the fixed camera 20.

This image pickup is for recognizing the detailed position / orientation of the sucked component, and based on this recognition information, the position correction amount when the component is mounted on the substrate P is calculated and the accuracy is high. Realize the implementation. Furthermore, the fixed camera 20
Can also be used to make a control unit (not shown) recognize whether or not the head unit 23 holds the nozzle. An illumination device 19 for the fixed camera is provided above the fixed camera 20 to improve the illumination conditions of the components sucked by the suction head 24.

With the above-described structure, in this embodiment, the pickup and the image pickup of the component (the image pickup is shown in FIG. 23a).
Head unit 23 which has been subjected to (in the vicinity position)
Can be positioned on the substrate P (for example, 23b in the figure) by extending the movement of the movement. And Y
Positioning is performed by a servo device such as the Y-direction servo motor 27 in the direction, and X is determined in the X direction.
Positioning is performed by a servo device including the direction servo motor 15. Then, in this state, the individual suction heads 2
4 can be moved up and down to mount a predetermined component on the substrate P at a predetermined position.

Further, a mechanism for moving the replacement nozzle accommodating portion 32 for attaching / detaching the suction nozzle 24a to / from the head unit 23 is not required, and the head unit 23 is not required.
In order to attach / detach the suction nozzle 24a to / from the suction head 24, the head unit 23 and the replacement nozzle housing 32 are made to face each other at a predetermined position also by moving the substrate moving table 10 in the X direction,
It is easier by moving the head unit 23 in the Y direction.
Therefore, the suction nozzle 24a can be efficiently attached to and detached from the suction head 24 with a simple configuration.

Further, by mounting the replacement nozzle housing 32 on the fixed camera 20 side of the substrate moving table 10, the mounting machine as a whole can be made compact in the front-rear direction and the left-right direction. At the same time, the head unit 23 can be moved to the tape feeder 22, which is a component supply unit, in a short time after the nozzle replacement, and the efficiency of the mounting operation can be improved especially when the nozzle replacement is performed relatively frequently.

Next, an embodiment different from the embodiment shown in FIGS. 1 and 2 will be described with reference to FIG. Figure 3
FIG. 6 is a plan view schematically showing the configuration of a mounting machine according to another embodiment of the present invention. In FIG. 3, the components already described are given the same reference numerals and the description thereof will be omitted.

In this embodiment, instead of the replacement nozzle storage portion 32 in the above embodiment, a replacement nozzle storage portion 32a is provided side by side on the side of the substrate moving table 10 opposite to the tape feeder 22 side. Is. The operation of exchanging the suction nozzle is almost the same except that the position of the head unit 23 in the Y direction when exchanging is different.

Also in this embodiment, the suction nozzle can be efficiently attached to and detached from the suction head 24 with a simple structure as in the above-described embodiments. Further, by providing the replacement nozzle housing 32a on the opposite side of the substrate moving base 10 from the fixed camera 20 side, the distance between the substrate moving base 10 and the component supply unit (tape feeder 22) is further shortened for designing. You can do it. Therefore, the head unit 23 can move between the substrate moving table 10 and the tape feeder 22 in a shorter time, and the efficiency of the mounting operation can be improved especially when the nozzle replacement is relatively infrequent.

Next, an embodiment different from the embodiments shown in FIGS. 1, 2 and 3 will be described with reference to FIG. FIG. 4 is a plan view schematically showing the configuration of a mounting machine according to still another embodiment of the present invention. In FIG. 4, the same components as those already described are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, instead of the replacement nozzle housing 32 in the above embodiment, a replacement nozzle housing 32b is provided side by side on the side of the substrate moving table 10 on the tape feeder 22 side. Replacement nozzle housing 32b
Is capable of accommodating a plurality of nozzles in the X direction and a plurality (2 in this example) of nozzles in the Y direction. The operation of exchanging the suction nozzle is almost the same as in the above embodiment.

According to this, a large number of replacement nozzles can be provided, and it is possible to deal with a case where a large number of types of nozzles are required. Needless to say, such a nozzle housing portion 32b can also be applied to the embodiment shown in FIG.

Next, the substrate transfer function of the substrate moving table 10 described in each of the above embodiments will be additionally described with reference to FIG. FIG. 5 is a front view schematically showing a configuration example of the substrate moving table 10, and the same reference numerals are given to the components already described. Here, for convenience of explanation,
Illustration of the replacement nozzle housing 32 (or 32a, 32b) is omitted.

As shown in the figure, a narrow belt 51 is laid in the longitudinal direction on the substrate conveyor 13b, and the belt 51 is wound around pulleys 52, 53 provided at both ends of the substrate conveyor 13b. Then, it passes over the pulleys 54 and 55 provided further below to form a circular shape (the same applies to the substrate conveyor 13a although not shown). The pulley 55 is rotationally driven by the motor 56. When the motor 56 is rotationally driven, the belt 51 moves along the path formed by the pulley group. The length of the substrate conveyors 13a and 13b is longer than the length required to fix the substrate, as shown in the figure.

As a result, the board conveyors 13a, 13b
The substrates placed on the upper P1 and P2 can be moved from P1 to P2 which is a substrate fixing (clamping) position, and from the substrate fixing position P2 to P1 (or the opposite side of P1 via P2 (P3)). ) Can be moved to. Note that, as described above, the maximum allowable movement width of the board conveyors 13a and 13b in the X direction is within a range where there is no interference with the surroundings of the mounting machine on which the mounting machine is installed, and the X direction of the X-direction guide rails 12a and 12b.
It depends on the direction length. Furthermore, this maximum allowable movement width increases as the length of the board conveyors 13a and 13b is shortened, and as a result, the length in the X direction of the printed circuit board that can be mounted, that is, the maximum allowable length can also be increased.

However, the substrate conveyors 13a, 13
When the length of b is too short, the unloading side of the board conveyors 13a and 13b by the movement of the board moving table 10 at the same time as the unloading of the printed board P by the board conveyors 13a and 13b from the board fixing position P2 to the unloading position P3. To one side in the X direction, from the unloading side position of the substrate conveyors 13a and 13b to the center position (the position which is the center of the moving range at the time of mounting) to the loading side position in the other X direction, It takes time to move the printed circuit board P from the carry-in position P1 by the substrate conveyors 13a and 13b after receiving the printed circuit board P to the central position of the substrate conveyors 13a and 13b in one X direction. become.

If possible, the lengths of the board conveyors 13a and 13b may be the same as the length of the base 11 in the X direction, or may be shorter than that by the length of the printed board P. Although a mechanism for fixing the substrate is not shown, for example, a plate-like member is provided on the belt 51 via the substrate and the substrate is provided between the belt 51 and the plate-like member. It can be fixed by sandwiching.

In this way, the board conveyors 13a, 13b
Is provided in a length extended in the moving direction of the substrate moving table 10, and the substrate moving table 10 has not only the function of fixing the substrate but also the function of transferring the substrate. It is not necessary to provide a conveyor for loading and unloading the substrate, which leads to cost reduction of the device. Further, by changing the carrying stroke of the board conveyors 13a and 13b, it is possible to change the carrying-in / carrying-out position of the board, which is convenient especially when carrying in / carrying out the board manually.

In the above, the carry-in position and the carry-out position are set to the base 11
Although the case where the setting is separately performed on both sides in the X direction has been described, the carry-in position and the carry-out position may be set to either one of the X directions of the base 11. The setting can be performed by changing the control program registered in the control device (not shown).

In FIG. 5, the pulley 9b is a pulley for the conveyor width varying mechanism described above, and similar pulleys 109b are provided separately in the longitudinal direction of the board conveyors 13a and 13b. Pulley 9b and pulley 109b
Are driven simultaneously by the drive shaft 61 and rotate the drive shaft 61. Therefore, the motor 60, the pulley 58, the belt 5
9. A pulley 57 is provided to transmit power.

[0066]

As described in detail above, according to the present invention,
In the mounting machine, the substrate moving base moves in the left-right direction and the head unit moves in the front-rear direction, and the replacement nozzle housing is provided in the substrate moving base. Further, the replacement nozzle storage part moves left and right as the board moving table moves left and right, and by this and the head unit front-back movement, the replacement nozzle storage part is positioned substantially vertically below the head unit. Therefore, the replacement nozzle housed in the replacement nozzle housing can be smoothly mounted (or the nozzle already mounted on the head unit can be detached from the replacement nozzle housing).

Therefore, there is no need for a new mechanism for moving the replacement nozzle accommodating portion for attaching / detaching the nozzle to / from the head unit, and the head unit and the replacement nozzle accommodating portion are required for attaching / detaching the nozzle to / from the head unit. It is also easy to face each other at a predetermined position by the above-mentioned left-right movement and forward-backward movement. Therefore, the suction nozzle can be efficiently attached to and detached from the head with a simple configuration.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing the configuration of a mounting machine according to an embodiment of the present invention.

FIG. 2 is a left side view schematically showing the configuration of the mounting machine according to the embodiment of the present invention.

FIG. 3 is a plan view schematically showing the configuration of a mounting machine according to another embodiment of the present invention.

FIG. 4 is a plan view schematically showing the configuration of a mounting machine according to still another embodiment of the present invention.

FIG. 5 is a front view schematically showing a configuration example of the substrate moving table 10 in each of the above embodiments.

FIG. 6 is a schematic diagram showing a configuration example of a replacement nozzle housing section 32 shown in FIG.

[Explanation of symbols]

8 ... Timing belt for varying conveyor width 9a, 9b ...
Pulley 10 ... Substrate moving base 11 ... Base 12a, 12
b ... X-direction guide rails 13a, 13b ... Substrate conveyor 14 ... X-direction engaging member 15 ... X-direction servo motor
16 ... X-direction encoder 17 ... X-direction feed screw 18
… X-direction feed screw receiver 19… Fixed camera lighting device
20 ... Fixed camera 21 ... Feeder bank 22 ... Tape feeder 22a ... Component suction point 23 ... Head unit 24 ... Suction head 24a ... Suction nozzle
25 ... Y direction frame 26a, 26b ... Y direction guide rail 27 ... Y direction servo motor 28 ... Y direction encoder 29 ... Y direction feed screw 30 ... Y direction feed screw receiver 31 ... Moving camera 32, 32a, 32b ... For replacement Nozzle housing 51 ... Belts 52, 53, 54, 55
... Pulley 56 ... Motor 57,58 ... Pulley 59 ...
Belt 60 ... Motor 109b ... Pulley

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Keika Muramatsu             Yamaha Motor, 2500 Shinkai, Iwata, Shizuoka Prefecture             Within the corporation (72) Inventor Mitsugu Akiyama             Yamaha Motor, 2500 Shinkai, Iwata, Shizuoka Prefecture             Within the corporation F term (reference) 5E313 AA03 AA18 CC03 CC04 DD12                       EE02 EE03 EE05 EE24 EE25                       EE34 EE35 FF24 FF28 FF29                       FG02

Claims (6)

[Claims] 1. A base, a substrate moving base provided on the base, capable of holding a substrate in a substantially horizontal posture, and moving in the left-right direction, and provided adjacent to the substrate moving base in the front-rear direction. A component supply unit for arranging a plurality of the components in the front-rear direction for pickup, and moving in the front-rear direction from above the arrangement of the plurality of components to above the substrate moving table, and from the component supply unit to the component. A head unit that picks up and mounts the picked-up parts on the held substrate and holds nozzles in a replaceable manner, wherein the substrate moving table has a replacement nozzle housing portion, The nozzle storage part moves left and right as the substrate moving table moves in the left-right direction, and the left-right movement and the front-back direction movement of the head unit cause the head unit to move. Mounter, characterized in that facing vertically downward. 2. The replacement nozzle storage section is provided on the component supply section side of the substrate moving base, and a plurality of replacement nozzles can be stored in the left-right direction. Mounting machine. 3. The replacement nozzle storage portion is provided on the opposite side of the substrate moving base from the component supply portion side, and a plurality of replacement nozzles can be stored in the left-right direction. The mounting machine according to Item 1. 4. The mounting machine according to claim 2, wherein the replacement nozzle housing section is capable of housing a plurality of replacement nozzles in the front-rear direction in addition to the left-right direction. 5. The mounting machine according to claim 1, wherein the board moving table further includes a conveyor that conveys the board to be held in the left-right direction. 6. The image pickup device, which is provided on the base and between the board moving base and the component supply unit, and which picks up an image from the lower side to the upper side.
6. The mounting machine according to any one of items 1 to 5.