WO1998016345A1

WO1998016345A1 - Part mounting device and part mounting method

Info

Publication number: WO1998016345A1
Application number: PCT/JP1997/003636
Authority: WO
Inventors: Shigekazu Yoneyama; Yuzo Nishimori; Makito Seno
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 1996-10-14
Filing date: 1997-10-09
Publication date: 1998-04-23

Abstract

A part mounting device comprises a retracting table (203) capable of retracting and transferring thereto a first transfer table (130), which receives part supply cassettes (131) for supply of parts, within a movable range of a moving table (110), which carries thereon the first transfer table (130), in a direction perpendicular to a direction of movement of the moving table, and a changing table (202) for forwarding a second transfer table (135) in a direction perpendicular to a direction of movement of the moving table. When parts in the cassettes on the first transfer table run out of stock, retreat of the transfer table relative to the moving table and change thereof are performed automatically. Accordingly, it is possible to provide a part mounting device, which is small in length in the direction of movement of the moving table and high in productivity of substrates, and a part mounting method.

Description

Description Component mounting device and component mounting method

The present invention relates to a component mounting apparatus and a component mounting method for, for example, adsorbing electronic components and mounting them on a substrate such as a circuit board. Background art

In recent years, there has been a strong demand for increasing productivity without expanding factories, and there is also a demand for improving the productivity per unit area and the operating rate of electronic component mounting equipment.

Heretofore, a component supply device in this type of electronic component mounting device has generally been configured as shown in Japanese Patent Application Laid-Open No. 3-221326. Hereinafter, the configuration will be described with reference to FIG.

As shown in FIG. 19, the component supply device 17 includes a first supply table 1 arranged in an I direction parallel to the flow direction V of the substrate 24 and each of which is independently movable in the I direction. 9 and a second supply table 20. Each of the first supply table 19 and the second supply table 20 accommodates a large number of electronic components along the moving direction thereof. A plurality of component supply cassettes 18 are installed in parallel. Such a component supply device 17 is configured to supply a desired component to a predetermined component suction position 25 using the first and second supply tables 19 and 20.

The component mounting device 16 sucks the component supplied to the component suction position 25 by the component supply device 17 using the nozzle 22 of the rotary head 21 and X—Y It is mounted on the board 24 positioned on the table 23.

In the above configuration, if any of the components stored in the component supply cassette 18 in the first supply table 19 runs out of stock, the second supply table 20 is moved to the same position as the missing component. The component supply cassette 18 containing the components is positioned at the predetermined component suction position 25 to supply the components. As a result, the parts supply can be continued until the parts supply to the first supply table 19 is completed, so that efficient production can be performed.

However, in the above conventional configuration, the first and second supply tables 19 and 20 are arranged in series in parallel to the flow direction V of the substrate 24, so that the component supply device 17 is installed. Standby spaces S 1 and S 2 are required on both sides of the space F for parts supply. Therefore, when the component mounting device 16 is installed on a production line, the above-mentioned standby space SI, S2 is required, which has a negative effect on shortening the line length, that is, increasing productivity per area. Had become.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a compact and highly productive component mounting apparatus and a component mounting method. Disclosure of the invention

A component mounting device according to a first aspect of the present invention includes: a component holding device having a nozzle that moves while holding a component between a component suction position and a component mounting position;

A component supply cassette for sending out components has a cassette group arranged in parallel, and the cassette group is moved within a movement range of the cassette group along the arrangement direction of the component supply cassette in the component supply area. The components of the component supply cassette containing the desired components are moved in the arrangement direction of the component supply cassette and the components of the component supply cassette are placed in the above-described portion. When the parts to be supplied to the above-mentioned component holding device are out of stock or replaced, the cassette is located at the opposite side to the above-mentioned component holding device with respect to the above-mentioned component holding device. A component supply and retraction device for moving the cassette group in a direction perpendicular to the arrangement direction to a retreat area corresponding to the range of movement of the group of

A component is sucked at the component holding position from the component supply cassette, which is connected to the component holding device and the component supply and retraction device and is positioned at the component suction position, and mounts the component on the object. A control device for performing the replacement and retreat operation of the cassette group by the component supply and retraction device when a component supplied to the component holding device is out of stock or replaced;

With.

According to such a configuration, when a component is broken or replaced, the cassette group located in the component supply area moves to the retreat area corresponding to the moving range of the cassette group in the moving direction of the cassette group. Therefore, it is not necessary to provide an evacuation space in the component supply area in the moving direction of the cassette group. Therefore, the length of the component mounting device in the moving direction of the cassette group can be shortened, and a compact component mounting device can be provided.

According to the component mounting apparatus of the second aspect of the present invention,

There is a moving body on which the first transfer table for mounting the cassette group is detachably mounted, and the moving body is moved in the arrangement direction of the component supply cassette within the moving range of the cassette group. A component supply device for positioning the component of the component supply cassette containing the desired component to the component suction position;

The component supply cassette is disposed in the retreat area and is adjacent to the component supply device. A replacement and evacuation device arranged side by side in the arrangement direction of the components, wherein the replacement device is a second transfer device on which a group of cassettes in which the component supply cassettes are arranged in parallel are placed. The table is removably mounted, and the first transfer apparatus has a first transfer apparatus. The first transfer apparatus is mounted on the second transfer table in a direction orthogonal to the arrangement direction of the component supply cassette on a plane. To transfer the second transfer table to and from the moving body, wherein the evacuation device has a second transfer device, and the second transfer device is the component supply cassette. A replacement and evacuation device for moving the first transfer table in a direction orthogonal to the arrangement direction of the first transfer table and transferring the first transfer table to and from the moving body. Prepared,

The control device includes:

The component holding cassette is connected to the component holding device, the component supply device, the replacement and retraction device, and the component holding cassette is used to suck the component from the component supply cassette positioned at the component suction position and mount the component. When the parts are out of stock or replaced at the first transfer table, the first transfer table is evacuated to the evacuation device, and the second transfer table is moved from the replacement device. It can also be configured to be transferred to the body.

Here, the replacement and evacuation device may be configured to be movable.

According to such a configuration, the replacement table and the evacuation table are arranged adjacent to the component supply device and perpendicular to the moving direction of the moving table. Delivery to and from the evacuation table is possible. Therefore, there is no need to provide a space for evacuation in the moving direction of the moving table, and the length of the component mounting device in the moving direction of the moving table can be reduced, thereby providing a compact component mounting device. can do. Further, according to the component mounting apparatus of the third aspect of the present invention,

When the transfer table on which the cassette group is placed is detachably held and the parts to be supplied to the part holding device are out of stock or replaced, the parts supply force should be placed on a plane in the arrangement direction of the set. A second replacement device for moving the transfer table to the evacuation area in an orthogonal direction,

A plate-shaped member on which the second replacement device is placed; and moving the plate-shaped member in the arrangement direction of the component supply cassette within a moving range of the cassette group in the component supply area. And a component supply device for positioning a component in the component supply cassette containing a desired component to the component suction position.

Here, the second replacement device is:

A first arm member installed on the plate-like member of the component supply device, the first arm member moving in a direction orthogonal to the plane of the component supply cassette in a plane, and the first arm member attached to the first arm member; When the platform is replaced, the first arm member moves in the same direction as the direction of movement of the first arm member along with the movement of the first arm member in the orthogonal direction, and when not replaced, the first arm member overlaps with the first arm member and overlaps with the first arm member. A second arm member disposed on the shape member;

An engagement device attached to the second arm member and engaged with the transfer table may be provided.

According to such a configuration, a second replacement device to the component supplying device for supplying parts to the component holding device, when the out-of-stock or replacement of parts occurs, placing the component supply cassettes having a section port ⁰ necked Since the mounted transfer table is moved in a plane perpendicular to the transfer direction of the transfer table, there is no need to provide a space for evacuation in the transfer direction of the transfer table. Component mounting in the direction of movement The length of the mounting device can be shortened, and a compact component mounting device can be provided.

According to the component mounting apparatus of the fourth aspect of the present invention,

A first cassette group and a second cassette group in which component supply cassettes for sending out components are respectively arranged in parallel;

The first cassette group is moved in the arrangement direction of the component supply cassettes in the component supply area so that components are supplied to the component suction position from the component supply cassettes constituting the first cassette group. A first moving device that moves the first cassette group in a direction orthogonal to a plane with respect to the arrangement direction and arranges the first cassette group from the component supply area to the retreat area;

The second cassette group is moved in the component supply area in the arrangement direction of the component supply cassettes in the component supply area so that components are supplied to the component suction position from the component supply cassettes that constitute the second cassette group. And within the movement range of the second cassette group in the arrangement direction, the second cassette group is moved in a direction orthogonal to the arrangement direction in a plane orthogonal to the arrangement direction and is arranged in the retreat area. A moving device, wherein the moving direction of the second cassette group in the arrangement direction is parallel to the moving direction of the first cassette group in the arrangement direction, and the moving range of the second cassette group is A second moving device that is disposed so as to correspond to the moving range of the first cassette group and that the first moving device is located between the component holding device and the second moving device; With

The control device includes:

The component supply device, the first moving device, and the second moving device are connected to each other, and the component supplied to the component suction position is suctioned by the component holding device, and the component is mounted on an object to be mounted. One of the first and second cassette groups When retreating from the component supply area to the retreat area, either one of the first cassette group and the second cassette group is operated by operating one of the first moving device and the second moving device. And the other of the first moving device and the second moving device is operated to move one of the first force set group and the second cassette group out of the evacuation region. It is also possible to arrange in the above-mentioned component supply area to supply components from the component supply cassette in one of the first cassette group and the second cassette group.

According to such a configuration, each of the first and second moving devices moves each of the first and second cassette groups in the arrangement direction of the component supply cassettes, and Since the first and second cassette groups are respectively moved in a plane orthogonal to the above-mentioned arrangement direction within the movement range of the first and second cassette groups, the component mounting apparatus in the above-mentioned arrangement direction is moved. The length can be shortened as compared with the conventional component mounting apparatus, and a compact component mounting apparatus can be provided.

According to the component mounting method of the fifth aspect of the present invention, one cassette group in which component supply cassettes for sending out components are arranged in parallel is arranged in the component supply area. The components of the component supply cassette containing the desired components are moved to the component holding position of the component holding device by moving the cassettes along the direction within the moving range of the cassette group, and the components are supplied.

When a component to be supplied to the component holding device is out of stock or replaced, the cassette is moved to a retreat area, which is an area corresponding to the moving range of the cassette group and is orthogonal to the arrangement direction and is orthogonal to the arrangement direction. Automatically re-evacuates the group of components, and automatically loads a new group of cassettes into the parts supply area in place of the retreated group of cassettes, The components are supplied from the component supply cassette provided for the new cassette group to the component holding device.

According to such a method, when, for example, a part is out of stock, the cassette group in which the stock has run out is automatically evacuated and a new cassette group is automatically carried into the parts supply area. It is possible to quickly return from the out-of-stock state to the state where parts can be mounted, and it is possible to improve the productivity of the mounted body.

Further, according to the component mounting method of the sixth aspect of the present invention, the component supply cassette for sending out components has a first cassette group and a second cassette group arranged in parallel, respectively. When the component supply is performed only from the cassette group, when the one of the first cassette group and the second cassette group is retreated from the component supply area to the retreat area, the first moving device and the second moving apparatus are used. By operating one or the other of the devices, one of the first cassette group and the second cassette group is retreated to the retreat area, and the other of the first and second moving devices is relocated. Move the other one of the first and second cassette groups by moving the other one of the first and second cassette groups, and move the other one of the first and second cassette groups from the retreat area to the component supply area. Parts in one or the other of the group Parts can also be supplied from the supply cassette.

According to such a method, for example, when the parts in the first cassette group are out of stock, for example, the first force set group including the out-of-stock component supply cassette is automatically moved to the retreat area, In addition, from the second cassette group

The second cassette group, which was previously placed in the retreat area, is automatically moved so that the opening can be supplied to the component suction position. It is possible to return, and the productivity of the mounted body can be improved. BRIEF DESCRIPTION OF THE FIGURES

These and other objects and features of the present invention will become apparent from the following description, taken in conjunction with preferred embodiments of the accompanying drawings. In this drawing, FIG. 1 is a perspective view showing a component mounting apparatus according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing a component mounting apparatus according to another embodiment of the present invention. 3 is a block diagram showing the configuration of the component mounting apparatus shown in FIGS. 1 and 2;

FIG. 4 is a plan view for comparing the length in the board transfer direction between the component mounting apparatus shown in FIGS. 1 and 2 and the conventional component mounting apparatus.

FIG. 5 is a perspective view showing a component mounting apparatus according to a second embodiment of the present invention, FIG. 6 is a cross-sectional view of a moving device in the component mounting apparatus shown in FIG. 5, and FIG. FIG. 3 is a plan view of the component mounting apparatus for explaining the operation,

FIG. 8 is a block diagram showing the configuration of the component mounting apparatus shown in FIG. 5, and FIG. 9 is a diagram for comparing the length in the board conveyance direction between the component mounting apparatus shown in FIG. 5 and a conventional component mounting apparatus. FIG.

FIG. 10 is a perspective view showing a component mounting apparatus according to a third embodiment of the present invention, and FIG. 11 is a perspective view of the second replacement apparatus shown in FIG.

FIG. 12 is a plan view for explaining the operation of the second replacement device shown in FIG. 11,

FIG. 13 is a plan view for explaining the operation of the second replacement device shown in FIG. 11,

FIG. 14 is a side view of the second replacement device shown in FIG. 12,

FIG. 15 is a perspective view showing a modification of the component mounting apparatus shown in FIG. 10, and FIG. 16 is a perspective view showing a modification of the component mounting apparatus shown in FIG. 10. FIG. 17 is a diagram showing the structure of the positioning device shown in FIG. 1,

FIG. 18 is a diagram showing the structure of the positioning and fixing device shown in FIG. 2, and FIG. 19 is a plan view showing a conventional component mounting device. BEST MODE FOR CARRYING OUT THE INVENTION

A component mounting apparatus according to an embodiment of the present invention and a component mounting method executed by the component mounting apparatus will be described below with reference to the drawings. In each of the drawings, the same reference numerals are given to components that perform the same or similar functions. Also, in the present embodiment, electronic components are handled as “parts” to be handled, and circuit boards are used as “objects to be mounted”. However, the “components” and “objects to be mounted” are not limited to these Not something.

1st embodiment;

The component mounting device 1 according to the first embodiment is roughly divided into a single tally head 21 which is an example of a device performing a function of a “component holding device”, an XY table 23, and a component supply device 1. 0, an exchange evacuation table 201 which is an example of performing the function of the exchange evacuation device, and a control device 251.

The rotary head 21 and the XY table 23 have the same configuration as the conventional one described above. That is, the rotary head 21 is provided with a plurality of suction nozzles 22 that are fixed and do not move and are rotatable around the main body 21a and suction components, and the suction nozzle 22 is fixed at a fixed position. The component is sucked at a certain component suction position 25 to hold the component, and the component is mounted on the component mounting position on the board 24 at the fixed component mounting position. The X—Y table 23 places the substrate 24 transferred by the substrate transfer device 26, and matches the component mounting position where the component is to be mounted on the substrate 24 to the component mounting position. The substrate 24 is moved in the X and Y directions as described above. The board 24 on which the components have been mounted is the board It is transported in the direction of arrow V by the transport device 26. Further, in the first embodiment, the mouth-tally head 21 and the XY table 23 are mounted on a common base 27.

The component supply device 101 is roughly divided into a substrate indicated by an arrow V similarly to the one disclosed in the patent application (Japanese Patent Application No. 7-2494971) already filed by the applicant. A moving table 110 serving as an example which can move in the I direction parallel to the transport direction of 24 and which fulfills the function of a moving body; and a traveling section 120 which moves the moving table 110 in the I direction. And a first transfer table 130 mounted on the moving table 110.

First, the traveling section 120 will be described. A pair of rails 122, 122 are laid in parallel with each other along the I direction on the pedestal 121 adjacent to the pedestal 27 and extending in the I direction. Between these two rails 1 2 2 and 1 2 2, a screw shaft 1 2 3 supported on a pedestal 1 2 1 with both ends rotatable is provided along the above I direction. A driving device 124 for rotating the screw shaft 123 is connected to one end of the screw shaft 123. The moving table 110 is a plate-like member that slides in the moving direction of the moving table on the rails 122 in the direction I while being guided by the rails 122, 122. A transfer device 1 12 provided on the upper surface side of the plate-like member 1 1 1 for moving the first transfer table 130 in a direction II perpendicular to the direction I, and the plate-like member 1 1 A nut portion (not shown) fixed to the lower surface of 1 and screwed with the screw shaft 1 2 3 and a first transfer table 1 30 mounted on the plate member 1 1 1 attached to the plate member 1 1 1 And a positioning device (1 13) for positioning the first transfer table (130) when mounting. Note that, in the first embodiment, the movable table movable range is the length in the I direction in the cassette group 132 mounted on the first transfer table 130 described later. The length is slightly larger than twice. However, The movable table movable range is not limited to the length of the first embodiment, and may be twice or more the length of the cassette group 132 in the I direction. In the present embodiment, the positioning device 113 includes an air cylinder 113a connected to a driving device 113c having a compressed air source, as shown in FIG. The first transfer table 130 is positioned by engaging a rod 113b provided in the 113a with a recess provided in the first transfer table 130. When the first transfer table 130 is positioned at a predetermined position of the plate-like member 111, the rod 113b can be engaged with the recess as described above. It is possible to detect whether or not the first transfer table 130 is positioned at a predetermined position of the plate-like member 111 by detecting whether or not the matching is possible via the driving device 113c. The structure of the positioning device 113 is not limited to that described above. For example, a known ball plunger may be used instead of the air cylinder 113a and the mouth 113b.

The transfer device 112 has the same configuration as that provided in the exchange evacuation table 201 described later. That is, a pair of shafts 114 and 114 extending in the I direction are rotatably supported at both ends of the plate-like member 111 in the II direction. A pair of strips 115 and 115 are looped between the shafts 114 and 114 at both ends of the shafts 114 and 114, respectively. In addition, one of the shafts 114 is provided with a driving device 116 for rotating the shaft 114.

The first transfer rack 1 3 0 described later, _c is placed on the strip 1 1 5, 1 1 5 Therefore, the by the shaft 1 1 4 by the driving apparatus 1 1 6 is rotated The belts 1 15 and 1 15 wrapped around the shaft 1 14 move in the above-mentioned II direction, and accordingly, the first transfer table placed on the belts 1 15 and 1 15 1 3 0 is above Moved in the II direction. When the positioning device 113 detects that the first transfer table 130 is placed at the predetermined position with respect to the plate member 111, the operation of the driving device 116 is reduced. Stop.

In the moving table 110 having such a structure, since the nut portion is screwed to the screw shaft 123, the screw shaft 123 is rotated by the driving device 124. As a result, the rail slides on the rails 122 and 122 in the direction I.

The method of moving the moving table 110 is not limited to the above-described embodiment. For example, a known method such as a method in which a driving means is provided in place of the above-described nut portion and the moving table 110 is allowed to self-propelled, instead of rotating the screw shaft 123 as described above, can be applied. .

The first transfer table 130 has a plurality of electronic components wound around a tape temporarily fixed so that the electronic components are sent out one by one. A cassette group 132 in which the supply cassettes 131 are arranged in the above-mentioned I direction is placed. Such a first transfer table 130 is placed on the strips 115 and 115 constituting the transfer device 112 of the moving table 110 as described above.

The exchange evacuation table 201 is composed of a replacement table 202 on which the second transfer table 135 to be replaced with the first transfer table 130 is placed, and a first transfer table 130 for replacement. Evacuation table 203 for evacuation. In the first embodiment, one replacement table 202 and one evacuation table 203 are provided, respectively. However, the present invention is not limited to this, and one or more replacement tables can be provided. In the first embodiment, the same cassette group 132 as the cassette group 132 mounted on the first transfer table 130 is mounted on the second transfer table 135. However, it is not limited to this. In other words, the force set group 13 2 placed on the second transfer table 13 5 is moved to the cassette group 13 2 placed on the first transfer table 13 If the parts are not out of stock, the second transfer table 135 has a different type of cassette group than the cassette group 132 mounted on the first transfer table 130. Is placed o

Such a replacement evacuation table 201 is disposed adjacent to the pedestal 121 of the component supply device 101 and within the movable table movable range. By arranging the replacement evacuation table 201 along the direction 上記 orthogonal to the direction I and within the movable range of the moving table in this way, as shown in FIG. In comparison with the above, the space occupied by the device can be reduced by the distance IV in the direction I. The transfer table 112 and the evacuation table 203 are provided with the transfer device 112 described above, respectively. The replacement table 202 and the evacuation table 203 are arranged along the line. In the first embodiment, the replacement table 202 and the evacuation table 203 are fixed and cannot be moved.

As shown in FIG. 3, the above-described substrate transfer device 26, rotary head 21, component supply device 101, and transfer device 112 are connected to a control device 251, respectively. The control device 251 controls the operation of the component mounting device 1 described below.

The operation of the component mounting apparatus 1 configured as described above will be described.

A first transfer table 130 on which a group of cassettes 13 2 is mounted is mounted on the moving table 110 of the component supply device 101. The board 24 transferred by the component transfer device 26 is placed on the XY table 23. Further, the control device 25 1 includes the types of electronic components accommodated in the respective component supply cassettes 13 1 placed on the first transfer table 130, the types of the respective electronic components, and the respective component supply cassettes. Relationship with 1 3 1 arrangement position, parts supply cassette 1 3 1 arrangement pitch, base Each piece of information such as the relationship between each component mounting position on the board 24 and the types of components mounted at these component mounting positions is stored in advance. Therefore, according to the control of the control device 251, the control device 2 is controlled so that the electronic component is supplied to the component suction position 25 from the component supply cassette 131, in which the electronic component to be mounted on the board 24 is accommodated. Numeral 51 operates the driving device of the traveling section 120 in the component supply device 101 to move the moving table 110 in the I direction. On the other hand, the movement of the XY table 23 is controlled by the control device 25 1, and the component mounting position on the substrate 24 placed on the XY table 23 is changed to the component on the rotary head 21. Matched to the mounting position. Therefore, the rotary head 21 sucks the component supplied to the component suction position 25 by the nozzle 22 and holds the component, and is sucked by the rotational movement of the nozzle 22 in the direction of arrow III. The mounted component moves to the component mounting position and is mounted on the component mounting position on the board 24. By repeating such an operation, predetermined components are sequentially mounted on the component mounting positions of the board 24.

When any of the component supply cassettes 1 31 in the first transfer table 130 is insufficient due to shortage of components in the first transfer table 130 while repeating the component mounting operation described above, or when the type of component to be mounted is changed When this occurs, the above-described component mounting operation is interrupted. As a method for detecting the out-of-stock condition, as described above, a method of decrementing the information on the number of components of each component supply cassette 131, which is stored in advance in the control device 251, or an optical device, for example, There is a known method such as a method in which a sensor that detects a component mechanically or mechanically is provided in the component supply cassette 131, and detection is performed by a signal supplied from the sensor to the control device 251.

Then, under the control of the control device 251, the drive device of the traveling section 120 is operated to move the moving table 110 in the I direction to a position corresponding to the evacuation table 203. In this case, the movement control of the movement table 110 is as follows. —

A known method can be applied. For example, the control device 25 1 calculates the distance between the position of the moving table 110 when the above-described component mounting operation is interrupted and the position corresponding to the evacuation table 203 by calculation, and calculates the distance as the moving distance. The moving table 110 may be moved based on the detection signal of the moving table 110, or a sensor may be provided to detect that the moving table 110 has moved to a position corresponding to the evacuation table 203. The movement of the table ₁₁₀ may be stopped. _{C When} the movement table 110 is disposed at a position facing the evacuation table _{203 in} this way, the control device 251 moves the movement table 111. After releasing the attachment / detachment positioning device 1 13 provided at 0, the moving table 1 10 and the evacuation tape are moved so that the first transfer table 13 0 is transferred to the evacuation table 2 0 3 Activate each drive 1 1 6 of each transfer device 1 1 2 provided in the socket 203 c Therefore, the first transfer table 130 mounted on the strips 115 of the moving table 110 is provided with guides 204 provided on the left and right sides of the evacuation table 203. It is transferred to the strips 115 and 115 in the evacuation table 203 while being guided by the refuge. It should be noted that a known method can be applied to the movement control of the first transfer table 130 at this time. For example, the first transfer table 130 may be moved based on a previously determined movement distance from the moving table 110 to the evacuation table 203, or the first transfer table 130 may be used for evacuation. A sensor may be provided for detecting the complete transfer to the table 203, and the movement of the first transfer table 130 may be stopped based on a detection signal from the sensor.

After the first transfer table 130 is placed on the evacuation table 203 in this way, the control table 251 controls the movement table 110 to correspond to the exchange table '202. To the position you want. The movement control at this time can be performed in the same manner as when the movement table 110 is moved to the evacuation table 203. When the moving table 110 is placed at a position facing the replacement table 202, the control device 251 causes the second transfer table 135 mounted on the replacement table 202 to move. The drive units 1 16 of the transfer tables 1 12 provided on the replacement table 202 and the transfer table 110 are operated so as to be transferred to the transfer table 110. Therefore, the second transfer table 1 35 placed on the strips 115 and 115 of the replacement table 202 becomes the strips 115, 111 of the transfer table 110. Transferred to 5. The movement control at this time can be performed in the same manner as when the first transfer table 130 is moved from the movement table 110 to the evacuation table 203.

After the second transfer table 1 35 is placed on the transfer table 110 in this way, components are supplied using the cassette group 1 32 placed on the second transfer table 1 35 Is restarted, and the components are supplied to the substrate 24 in the same manner as in the case of the first transfer table 130 described above.

By the time the parts in the cassette group 13 2 placed on the second transfer table 13 5 are out of stock, the parts supply cassette for the parts that were out of stock in the first transfer table 130 is generated. The series of operations described above can be automatically repeated by exchanging point 13.

As described above, according to the component mounting apparatus 1 of the first embodiment, the replacement evacuation table 201 is arranged along the above-mentioned II direction orthogonal to the above-mentioned I direction and within the movable table movable range. However, the space occupied by the component mounting apparatus in the transport direction V of the board 24 can be reduced as compared with the related art. Furthermore, since the transfer table on which the component supply cassette 13 1 is mounted can be automatically replaced, a circuit board can be efficiently produced.

In the component mounting apparatus 1 described above, the replacement table 202 and the evacuation table 203 are both installed and fixed, but the component mounting shown in FIG. As in the case of the attachment device 2, it is also possible to adopt a movable cart form. It should be noted that such a movable trolley has the same structure as that disclosed in a patent application (Japanese Patent Application No. 7-2494971) already filed by the applicant. . In such a replacement table trolley 2 1 1 and an evacuation table trolley 2 1 2, the operator turns the handle 2 14 to raise and lower the base plate 2 1 3 on which the transfer device 1 1 2 is attached. Has a possible structure. In addition, both the component supply device 101 in the above-mentioned I direction are so arranged that the replacement table cart 2 1 1 and the evacuation table cart 2 1 2 are located at predetermined positions with respect to the component supply device 101. Positioning and fixing devices 2 15 and 2 15 are attached to the ends. As shown in FIG. 18 in this embodiment, the positioning and fixing device 2 15 includes an air cylinder 2 15 a connected to a driving device 2 15 c having a compressed air source. The replacement table truck 2 1 1 is engaged by engaging the rod 2 15 b provided on the 15 a with the concave portions provided on the replacement table truck 2 1 1 and the evacuation table truck 2 12. And the position of the evacuation table cart 2 1 2 is determined. In FIG. 18, the relationship with the positioning and fixing device 2 15 is shown by taking the evacuation table cart 2 12 as an example. Further, the structure of the positioning and fixing device 2 15 is not limited to the above-described one. For example, a known ball plunger can be used instead of the air cylinder 2 15 a and the rod 2 15 b.

The replacement table carriage 2 11 and the evacuation table carriage 2 112 include the strips 115, 115 of the moving table 110, the replacement table carriage 2 11 1 and the evacuation table. The worker raises and lowers the base plate 2 13 so that the height of the strips 1 15 and 1 15 on the trolley 2 1 2 is the same, and then the moving table 1 10 and the replacement table trolley. Transfer the transfer table between 2 1 1 and the evacuation table cart 2 1 2. Also, go to the evacuation table cart 2 1 2 The first transfer table 130 which is retracted and placed on the evacuation table cart 2 1 2 is moved by the operator when the evacuation table cart 2 1 2 is separated from the component supply device 101 by, for example, a component. It is transported to the replacement location of supply cassette 1 3 1

By making the exchange evacuation table 201 conveyable in this way, it is possible to exchange and change the component supply cassette 13 1 more quickly and safely, and to produce circuit boards more efficiently. Can be.

2nd embodiment;

A component mounting apparatus according to a second embodiment of the present invention and a component mounting method executed by the component mounting apparatus will be described below with reference to the drawings.

As shown in FIGS. 5 and 8, the component mounting device 300 of the second embodiment is roughly divided into a rotary head 21 which is an example of a device that performs the function of a “component holding device”, It comprises a Y table 23, a component supply device 301, and a control device 361.

As shown in FIG. 5, the rotary head 21 and the XY table 23 have the same configuration as the conventional one described above, and the outline has been described in the first embodiment. The description in is omitted.

The component supply device 301 is roughly divided into first and second moving devices 310A and 310B, and first and second moving devices 31A and 31B mounted on the respective moving devices 31OA and 31OB. 2 cassette groups 1 32 A and 1 32 B are provided.

With reference to FIGS. 5 and 6, the mobile devices 31 OA and 31 OB will be described first. Since both of them have the same configuration, only the first mobile device 31 OA will be described as a representative. The components of the first mobile device 31OA are given a suffix "A", and the components of the second mobile device 310B are given a suffix "B". The moving device 3 1 OA is an I-direction driving device 3 for moving the first cassette group 13 2 A in the I direction parallel to the V direction, which is the transport direction of the substrate 24.

2 OA and an II-direction drive device 34 2 OA for moving the cassette group 13 2 A in the II direction which is a direction orthogonal to the I direction on a plane, and an I-direction drive device 3 2 OA Move the II-directional drive device 34 OA in the direction I while supporting the II-directional drive device 34 OA at.

Also, a plurality of electronic components are placed at regular intervals so that the electronic components are sent out one by one to the mounting plates 345A and 345B, which will be described later, in the moving devices 31OA and 31OB. A cassette group 1 in which component supply cassettes 1 3 1 provided for each type of electronic component and wound around a temporarily fixed tape are arranged in the above-mentioned I direction.

32 A and 1 32 B are placed.

The I-direction drive device 32 O A has the following structure. That is, the screw shaft 32 along the I direction is placed at the center of the inside of the elongated box 32 A extending in the I direction.

2 A extends, and both ends thereof are rotatably supported by a box 3 21 A. Also, a driving device 32 3 A such as a motor for rotating the screw shaft 32 2 A around the axis is connected to one end 3 22 A of the screw shaft 3 22 A, Equipment 3 2

3 A is supported by the box 3 2 1 A. Further, the screw shaft 32 A is engaged with the screw shaft 32 A, and is moved in the direction I by the rotation of the screw shaft 32 A by the driving device 32 A. Joint 3 2 4 A is attached.

The II-directional drive device 34 OA has the same structure as the I-directional drive device 32 OA. That is, there is provided an elongated box 34 1 A extending in the II direction, and the engaging portion 3 24 A is fixed to one end of the bottom surface 3 41 A a of the box 3 41 A. . Therefore, the rotation of the screw shaft 3 2 2 A causes the box 3 4 1 A to move in the above-mentioned I direction. In addition, the bottom surface 341 Aa of the box 341 A slides on the upper surface 321 Aa while being supported by the upper surface 321 Aa on the opening side of the box 321 A. Above box A screw shaft 342A extends in the center of the inside of the body 341A along the direction II, and both ends thereof are rotatably supported by the box 341A. Also, a driving device 3443A such as a motor for rotating the screw shaft 3442A around the axis is connected to one end 3442Aa of the screw shaft 3442A. 3 4 3 A is supported by the box 3 4 1 A. Furthermore, the screw shaft 3 4 2 A is engaged with the screw shaft 3 4 2 A, and the engaging portion 3 which is moved in the above-mentioned II direction by the rotation of the screw shaft 3 4 2 A by the driving device 3 4 3 A. 44 A is attached, and the engaging portion 344 A is fixed to the bottom surface 345 Aa of the mounting plate 345 A on which the cassette group 132 A is mounted. Therefore, the mounting plate 3445 A and the force set group 1332 A move in the II direction by the rotation of the screw shaft 34 A. In addition, the bottom surface 3 4 5 A a of the mounting plate 3 4 5 A slides on the upper surface 3 4 1 A a while being supported by the opening side upper surface 3 4 1 A a of the box body 3 4 1 A. I do.

As described above, the I-directional drive device 32OA moves the box 3411A extending in the II direction in the I direction by the rotation of the screw shaft 32A, and the II-directional drive device 34OA. Moves the mounting plate 3445 A in the direction II by rotating the screw shaft 34 A.

The moving devices 310A and 310B are configured as described above, and the I-direction driving device 32OA in the moving device 310A and the I-direction driving device 320 in the moving device 310B are formed. The moving device 310A and the moving device 310B are set on the base 302 with B and B being parallel to each other. Also, in such an installation state, in the moving device 31 OA, the II direction driving device 34 OA box body in the 34 A. The bottom surface 34 1 A of the 34 1 A has one end portion in the moving device 3 10 A. I-directional drive unit 3 2 OA box 3 2 1 A supported on the upper surface 3 2 A, the other end of which is the I-directional drive unit 3 2 0 B box in the adjacent moving unit 3 10 B It slides while being supported by the upper surface 3 2 1 B a of 3 2 1 B. Similarly, the mobile device 3 10 B The bottom surface 341 B a of the box 341 B of the II-direction drive 340 B in the first direction is supported by the top end 321 Ba of the box 32 1 B of the I-direction drive 320 B in the moving device 310 B, The other end slides while being supported by the upper surface 321Aa of the box 321A of the I-direction driving device 32OA in the adjacent moving device 310A.

The method of moving the I-direction driving devices 32 OA, 32 OB and the II-direction driving devices 34 OA, 34 OB in the moving devices 31 OA, 31 OB is not limited to the above-described embodiment. For example, instead of rotating each screw shaft 322 A, 322 B, 342 A, 342 B as described above, each screw shaft 322 A, 322 B, 342 A, 342 B engages with each of these screw shafts. A well-known method such as a method of providing a moving driving means and causing the boxes 341A and 341B and the mounting plates 345A and 345B to run by the driving means can be applied.

Further, in the second embodiment, as described above, the two moving devices 310A and 310B are provided. However, the present invention is not limited to this, and a total of three or more moving devices may be provided. . Further, in the second embodiment, the same cassette groups 132A and 132B are mounted on the moving device 31OA and the moving device 310B, but the present invention is not limited to this. That is, the cassette group 132B mounted on the mounting plate 345B of the moving device 310B is not used for running out of parts in the cassette group 132A mounted on the mounting plate 345A of the moving device 31OA. In this case, a group of cassettes of a different type from the group of cassettes mounted on the mounting device 345A of the mobile device 31OA is mounted on the mobile device 310B.

By configuring the moving devices 310A and 310B in this manner, for example, for the moving device 31OA, the cassette group 132A is moved in the I direction by rotating the screw shaft 322A of the I-direction driving device 32OA, and II direction drive By rotating the screw shaft 34A of 34OA, the cassette group 1332A can be moved in the direction II perpendicular to the direction I. Therefore, as shown in FIG. 9, the space occupied by the device can be reduced by the distance IV in the above-mentioned I direction as compared with the conventional component mounting device 16.

Also, as shown in FIG. 8, the above-described substrate transfer device 26, rotary head 21 and component supply device 301 are connected to a control device 361, respectively. Controls the operation of the component mounting apparatus 300 described below.

The operation of the component mounting apparatus 300 configured as described above will be described.

A group of cassettes 1332A is placed on the mounting plate 345A of the moving device 31OA in the component supply device 301. The board 24 transferred by the component transfer device 26 is placed on the XY table 23. The control device 36 1 is provided with the component supply cassettes 1 3 1 mounted on the mounting plates 3 4 5 A and 3 4 5 B of the moving devices 3 1 OA and 3 10 B, respectively. Type of electronic components accommodated, the relationship between the type of each electronic component and the arrangement position of each component supply cassette 131, the arrangement pitch of the component supply cassette 131, the mounting position of each component on the board 24 Each piece of information, such as the relationship with the types of components mounted at these component mounting positions, is previously stored. Therefore, according to the control of the control device 361, the control device is controlled so that the electronic component is supplied to the component suction position 25 from the component supply cassette 131, in which the electronic component to be mounted on the board 24 is accommodated. 361, the moving device 31 in the component supply device 301, the I-direction driving device 321OA of the OA is operated, and the mounting plate 345A is moved in the above-mentioned I-direction. On the other hand, the movement of the XY table 23 is controlled by the controller 361, and the component mounting position on the substrate 24 placed on the XY table 23 is changed to the component mounting position on the rotary head 21. Is matched. Therefore, the rotary head 21 is supplied to the component suction position 25. The picked-up part is sucked by the nozzle 22 and held, and the picked-up part is moved to the above-mentioned part mounting position by the rotational movement of the nozzle 22 in the direction of arrow III. Mount on the above component mounting position. By repeating such an operation, predetermined components are sequentially mounted on each component mounting position of the board 24. _{c While the} above-described component mounting operation is repeated, the moving device 3 1 OA mounting plate 3 45 If any of the component supply cassettes in 5 A is missing due to a shortage of components in component 1, or if the type of components to be mounted is changed, the above component mounting operation is interrupted. You. It should be noted that the method of detecting the necessity of the out-of-stock or the change of the component type is the same as that of the component mounting apparatus 1 of the first embodiment described above. Then, under the control of the control device 361, the I-direction drive device 32OA of the moving device 311OA is driven, and as shown in FIG. Is moved to the first advancing / retreating area 374, and the II-direction driving device OA is driven to move the mounting plate 345A from the component supply area 371 to the retreat area 372. On the other hand, after or during the operation of the moving device 31 OA, the II-direction driving device 340B of the moving device 310B is driven by the control of the control device 361 to place the mounting plate. 3 4 5 B is moved from the evacuation area 3 7 2 to the parts supply area 3 7 1, and the I-direction drive device 3 2 0 B is driven to move the mounting plate 3 4 5 B to the second retreat area 3 7 Move from 5 to the supply movement area 3 7 3.

In addition, the supply movement area 3 7 3 is placed within the range where the parts can be supplied from the parts supply cassette 1 3 1 to the parts suction position 25 described above. The area that moves in the direction. Further, the component supply area 371 is not only the supply movement area 3733, but also the mounting plates 3445A, 3 adjacent to the supply movement area 373 along the I direction. 45 B refers to the area that includes the range where B can move in the I direction. The evacuation area 372 is an area where the other mounting plate is arranged without interfering with one of the mounting plates arranged in the component supply area 371. U. In addition, the first advance / retreat area 374 is an area for moving the mounting plate 345A to the above-mentioned retreat area 372 by the II direction driving device OA of the moving device OA. Also, the second advance / retreat area 375 is used for moving the mounting plate 345B to the above-mentioned retreat area 372 by the II direction driving device 340B of the moving device 310B. Area.

The moving operation of the moving devices 31OA and 310B is performed so that the mounting plates 3445A and 345B do not come into contact with each other.

It should be noted that a known method can be applied to the above-described movement control of the mounting members 345A and 345B in the I direction and the II direction. For example, the case of the mounting plate 345 A will be described as an example. When the above-described component mounting operation is interrupted, the mounting plate 3445 A starts from the position of the mounting device 34OA in the moving device 31OA. The control device 25 1 may calculate the distance required to move the mounting plate 3 45 5 A to the position corresponding to the first advance / retreat area 3 74, and move the mounting plate 3 45 A based on the moving distance. A sensor is provided for detecting that the mounting plate 345A has moved to a position corresponding to the first advance / retreat area 3744, and the movement of the mounting plate 3445A is stopped based on the detection signal of the sensor. You may. In addition, the movement control of the mounting plate 345A from the component supply area 371 to the evacuation area 372 can be executed in the same manner as in the case of the box 341A described above. it can.

In this way, the cassettes 1 3 2 A mounted on the mounting plate 3 45 A of the moving device 3 1 OA are retracted to the evacuation area 3 7 2, while the mounting of the moving device 3 10 B is The cassette group 1 32 B placed on the plate 345 B is arranged from the retreat area 372 to the component supply area 371. Then, before the parts in the cassette group 1332B mounted on the mounting plate 345B of the moving device 310B are out of stock, the mounting plate of the moving device 31OA is By replacing the part supply cassette 131, which is out of stock in the 1345A cassette group 1332A, The series of operations described above can be automatically repeated.

As described above, according to the component mounting apparatus 300 of the second embodiment, the I-direction driving devices 32 OA and 32 OB and the II-direction driving devices 340 A and 340 B are provided. Each of the II-direction driving devices 34OA and 34OB engages with the screw shafts 32A and 32B extending along the above-mentioned I direction, respectively. , 322B, the cassettes 1332A and 1332B can be moved in the direction I above and in the direction II perpendicular to the direction I. In comparison with the above, the space occupied by the component mounting apparatus can be shortened along the direction V, which is the direction of transport of the substrate 24 parallel to the direction I. Furthermore, since the drive control of the I-direction drive units 320A and 320B and the II-direction drive units 3440A and 340B is performed, the mounting plates 345A and 3445 are mounted. The cassette groups 13 A and 13 B placed on B can be exchanged automatically. Therefore, a circuit board can be efficiently produced.

Third embodiment;

The component mounting apparatus according to the third embodiment will be described below with reference to the drawings. As shown in FIG. 10, the component mounting device 501 of the third embodiment is roughly divided into a rotary head 21, a 丫 table 23, a component supply device 502, and a control device 5. 80.

Since the rotary head 21 and the XY table 23 have the same configuration as that described in the first embodiment, the description thereof will be omitted. In FIG. 10, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

First, the component supply device 502 will be described. The component supply device 502 is roughly divided into a plate-like member 541, which can be moved in an I direction parallel to the substrate 24 transport direction indicated by an arrow V, and the plate-like member 541 in the I direction. Run to be able to run The row section 545 and the second replacement device 550 installed on the plate member 541 can be used.

The traveling section 545 will be described. On the pedestal 546 adjacent to the pedestal 27 and extending in the I direction, a pair of rails 544 and 544 are laid in parallel with each other along the I direction. Between these two rails 547, 547, a screw shaft 548 supported on a base 546 with both ends rotatable is provided along the I direction.

As shown in FIG. 14, on the lower surface of the plate member 541, a drive device 542 that engages with the screw shaft 548 is provided. Therefore, the plate-like member 541 can be moved in the I direction along the screw shaft 548 by the driving device 542. The movement control is performed by the controller 580. The method of moving the plate member 541 is not limited to this method.For example, a motor for rotating the screw shaft 548 around one end of the screw shaft 548 is provided at one end of the screw shaft 548. However, the plate member 541 can be moved in the axial direction of the screw shaft 548 by rotating the screw shaft 548 according to the mode.

On the upper surface of the plate member 541, a second replacement device 550 is installed. The first transfer table 531 can be engaged with the second replacement device 550 as described later in detail. As in the case of the first embodiment, the first transfer table 531 has a first cassette in which component supply cassettes 131, which send out electronic components one by one, are arranged in the I direction. Groups 5 3 3 are placed. The first transfer table 531 is moved in the π direction orthogonal to the I direction by the second exchange device 550, which will be described in detail later.

As described above, the plate-like member 541 can be moved in the above-mentioned I direction, but its movable range is the first cassette mounted on the first transfer table 531 in the third embodiment. Length slightly larger than twice the length in the I direction in group 5 3 3 It is. However, the movable range of the plate-shaped member 541 is not limited to the above-described length, and is set to be at least twice as long as the length in the I direction of the first cassette group 533. Can be.

As shown in FIG. 14, on the lower surface of the first transfer table 531, a boss that engages with a claw member 572, 572 provided in a second replacement device 5550 described later is provided. Two projections 5 15 and 5 15 are provided along the I direction.

Next, the second replacement device 550 will be described. As shown in FIG. 11, the second replacement device 550 includes a first arm mechanism 551, a second arm mechanism 552, and an engagement device 553. By moving the engagement device 553 in the direction 直交 orthogonal to the direction I by the mechanism 551 and the second arm mechanism 552, the transfer table on which the component supply cassette 313 is placed. It has a function of exchanging the transfer table, such as retreating from the plate member 541, or disposing it on the plate member 541.

The first arm mechanism 551 is installed on the plate-like member 541 and has the following configuration.

That is, as shown in FIGS. 12 to 14, two sliders 55 5, 55 55 extending in parallel along the 上記 direction are laid on the plate member 54 1, A first arm member 556 is slidably engaged with the slider 555. A ball screw 557 is provided on the plate member 541 so as to be rotatable around its axis along the slider 555, and is fixed to the lower surface of the first arm member 556. The nut 558 is engaged with the ball screw 557. A pulley 559 is attached to one end of the ball screw 557, and the pulley 559 is attached to an output shaft of a driving motor 561 fixed on the plate member 541 by a bracket 560. A timing belt 563 is stretched between the pulley 562 and the pulley 559 described above. Therefore, the operation of the drive motor 561 causes the ball screw 557 to rotate around its axis via the timing knob 563, thereby The first arm member 556 moves in the direction Π through the nut 558 engaged with the ball screw 557.

Also, the first arm member 556 has sliders 564, 564 along both sides of the first arm member 556 for the following second arm mechanism 552 along the Π direction. Are formed, and a second arm moving mechanism 565 for moving the second arm mechanism 552 is provided. The second arm moving mechanism 566 includes two pulleys 566, 567 and a timing belt 568 wrapped around the pulleys 566, 567. The pulleys 566 and 567 have their rotation center axes parallel to the above-mentioned I direction, respectively, and the timing belt 568 wrapped around the pulleys 566 and 567 is the first arm member 55. The first arm member 55 6 is rotatably attached to both ends of the first arm member 55 6 in the direction にして so as to pass through the upper side and the lower side of 6. The timing belt 568 located below the first arm member 556 is a plate on the side opposite to the installation direction of the rotary head 21 (hereinafter referred to as the anti-rotary head side). It is gripped by a block 569 fixed to the end of the shaped member 541. Therefore, as described above, when the first arm member 556 moves in the direction Π, the timing belt 568 located above the first arm member 556 moves in the direction 、. The pulleys 566 and 567 also rotate in accordance with the movement of the belt 568. The second arm mechanism 552 is provided on the upper side of the first arm member 556, and moves in the above-described direction of the first arm mechanism 551 along the sliders 564, 564. A second arm member 570 that slides on the first arm member 556 in the above-mentioned direction following the above. A block 571 is fixed to the lower surface of the second arm member 570, and the block 571 holds a timing belt 568 located above the first arm member 556. . The position where the second arm member 570 is located closest to the rotary head 21 when the first arm member 556 moves farthest to the rotary head 21 side. The block 571 grips the timing belt 568. Thus, the second arm member 5 7 0 Is connected to the timing belt 568 via the block 571, and the timing belt 568 moves in the above Π direction with the movement of the first arm member 556 in the above Π direction. Therefore, as described above, the second arm member 570 moves in the above-described direction following the movement of the first arm member 556 via the block 571. At the end of the second arm member 570 on the side opposite to the rotary head, a claw that engages with the bosses 5 15 and 5 15 provided on the first transfer table 531 is provided. An engagement device 553 having members 572 and 572 is attached.

The engaging device 5553 is provided with a claw member for engaging and disengaging the claw members 572, 572, the claw members 572, 572 and the bosses 515, 515. And a drive mechanism 5 7 3. The pawl members 572 are opened and closed around the center shafts 575, 575 by the operation of a driving unit 574 provided in the pawl drive mechanism 573, for example, an air cylinder. FIG. 12 shows a state in which the pawl members 572 and 572 are opened and the pawl members 572 and 572 are engaged with the bosses 515 and 515. On the other hand, FIG. Is a state in which the claw members 572 and 572 are closed, and the first arm member 556 and the second arm member 570 are overlapped with each other, in other words, the second replacement device 550 is This shows a contracted state.

The operation of the thus configured component mounting apparatus 501 of the third embodiment will be described below. Note that the mounting operation of the electronic component on the circuit board 24 by the one-piece head 21 under the control of the control device 580 is the same as the operation in each of the above-described embodiments. Are omitted, and the operation of the second replacement device 550 will be mainly described here. These operations are controlled by the controller 580.

Also, in the initial state, the second replacement device 550 does not hold the first transfer table 531, and the first transfer table 531 is not shown in FIGS. 12 and 13. In addition, it is assumed that they are arranged adjacent to the component supply device 502 and along the direction I, which is the moving direction of the plate-shaped member 541. Also, it has the same configuration as the first transfer table The second transfer table 5 3 2 for replacing the first transfer table 5 3 1 on which the second cassette group of the supply cassette 1 3 1 is placed is adjacent to the 1st transfer table 5 3 1 It is assumed that they are arranged along the I direction. The first transfer table 5 3 1 and the second transfer table 5 3 2 are formed by the claw members 5 7 2 and 5 7 2 of the engagement device 5 53 3 and the first transfer table 5 3 1 and the second transfer table 5 3 2. The bosses 5 15 and 5 15 of the transfer table 5 32 are arranged so as to be engageable with each other.

First, the holding operation of the first transfer table 531 by the second replacement device 550 is started. That is, the drive motor 561 is driven, and the ball screw 557 starts rotating around the axis via the timing belt 563. As a result, the first arm member 556 of the first arm mechanism 551 starts to move on the slider 555 to the side opposite to the rotary head along the direction 、 and the first arm As the member 556 moves in the direction Π, the timing belt 568 also starts moving in the second direction. Accordingly, the second arm member 570 of the second arm mechanism 552 holding the timing belt 568 also synchronizes with the movement of the first arm member 556 in the above-described direction. It moves in the above-mentioned direction along the slider 564 of the first arm member 556. Due to such a movement, the extruding blocks 576 and 5776 provided in the engaging device 553 are located on the lower surface of the first transfer table 531 on which the first cassette group 533 is mounted. The operation of the drive motor 561 is stopped when the bosses 5 15 and 5 15 come into contact with each other. As a method of detecting the timing of stopping the operation of the driving motor 561, a known method such as a method of detecting an increase in the load of the driving motor 561 is employed.

After the above-mentioned contact, the driving portion 574 of the engaging device 553 is operated, and the claw members 572, 572 are opened via the claw driving mechanism 5733, as shown in FIG. The pawl members 572 and 572 are engaged with the bosses 515 and 515, respectively. When the pawl members 572, 572 and the bosses 515, 515 are engaged, the bosses 515, 515 are connected to the pawl members 572, 527 as shown in FIG. 5 7 2 and the extruding blocks 5 7 6 and 5 7 6 will be sandwiched. After the engagement of the claw members 5 7 2 and the bosses 5 15, the driving motor 5 61 is rotated in the reverse direction, so that the first arm mechanism 5 51 and the second arm mechanism 5 52 are connected to the plate member 5. 4 Move to the 1 side. Therefore, the first transfer table 531 engaged with the engagement device 553 is arranged on the plate member 541. Thereafter, the plate member 541 is moved in the direction I by the screw shaft 548, and the component is supplied from the component supply cassette 1 3 1 on the first transfer table 5 3 1 to the rotary head 21. Is performed.

By continuing such a component supply, when a component supply force occurs in the component supply force set 13 1 in the first cassette group 5 33 3, the component mounting device 1 of the first embodiment described above will be described. The part exhaustion is detected by the method described above, and the electrical signal of the occurrence of the part exhaustion is supplied to the controller 580, and the controller 580 starts the retreat operation of the first cassette group 533. In this case, the first motor member 556 and the second arm member 570 are positioned on the opposite side of the rotary head by operating the drive motor 561 as described above, and the first transfer is performed. The first transfer table 531 is moved to the above-mentioned evacuation place by moving the mounting table 531 to the evacuation place where it was arranged in the initial state.

Then, after the first transfer table 531 is carried out to the evacuation area, the worker supports the first transfer table 531 or places the first transfer table 531 on an appropriate support member. After that, the drive unit 574 of the engagement device 553 is operated, and the claw members 572 and 572 are closed. As a result, the engagement between the pawl members 572 and 572 and the bosses 515 and 515 is released, and the engagement between the first transfer table 531 and the engaging device 553 is released. Is done. After the disengagement, the second replacement device 550 is brought into a contracted state. Thereafter, for the first transfer table 531, a part supply or a part replacement that is out of stock by an operator is performed.

On the other hand, the second replacement is performed so that parts are supplied from the second cassette group 534 of the second transfer table 532 instead of the first cassette group 533 of the first transfer table 531. The plate-shaped member 541 provided with the device 550 is moved to a position corresponding to the second transfer table 532. Then, as described above, the first arm member 556 and the second arm member 570 Is extended to the second transfer table 532 side, and then the driving section 574 of the engaging device 553 is operated to open the pawl members 572, 572 to open the pawl members 572, 572. And the bosses 5 15 and 5 15 of the second transfer table 5 32 are engaged. After that, as described above, the first transfer mechanism 532 is placed on the plate member 541 by operating the first arm mechanism 551 and the second arm mechanism 552 to supply parts. Offer.

As described above, also in the component mounting apparatus 501 of the third embodiment, when a component breakage or a component replacement occurs, the mounting table on which the component supply force set is mounted is moved in the Π direction orthogonal to the I direction. Since they can be moved along and retracted, the waiting spaces S1 and S2 for the component supply cassette group, which were required in the past, are no longer necessary. Therefore, the space occupied by the component mounting device in the transport direction V of the substrate 24 can be reduced as compared with the conventional case, and the productivity per unit installation area can be increased.

Further, in the second replacement device 550 in the third embodiment, in the contracted state, as shown in FIG. 13, the second arm member 570 overlaps the first arm member 556. Since the second exchange device 550 is housed in a small space, the overall shape of the second replacement device 550 can be made small, and the installation space can be reduced. Further, since the second arm member 570 is configured to move according to the movement of the first arm member 556, the moving speed of the second arm member 570 is set to It is twice as large. Therefore, the third embodiment has an operation that enables faster transfer.

In the above description, the second replacement device 550 is provided on the component supply device 502 side, but the second replacement device is provided on the replacement device side like the component mounting device 600 shown in FIG. An arrangement 550 may be provided. In this case, as shown in FIG. 15, the first cassette group 533 and the second cassette group 534 are to be arranged in the part-painting apparatus 502, which is conventionally necessary. Either one of the standby spaces S 1 and S 2 of the component supply cassette group is unnecessary. Therefore, space saving is slightly inferior to the case where the second replacement device 550 is provided on the component supply device 502 side. Become.

In the third embodiment, each of the first transfer table 531 and the second transfer table 532 is provided with two bosses 5 15, but the present invention is not limited to this. For example, it is also possible to form a single continuous boss between the bosses 5 15 and 5 15. In this case, it is necessary to hold the one boss from the left and right and configure the engaging device so that the claw member and the one boss are engaged.

Further, a configuration in which the configuration shown in FIG. 1 of the first embodiment and the second replacement device 550 of the third embodiment are combined can be adopted. That is, like the component mounting device 62 shown in FIG. 16, the transfer device 112 provided in each of the replacement device 202 and the evacuation device 203 in the first embodiment, A configuration in which the second replacement device 550 is replaced may be employed. In the component mounting device 602 shown in FIG. 16, the device corresponding to the replacement device 202 is referred to as a replacement device 122, and the device corresponding to the evacuation device 203 is retracted. It is shown as a device for use 123. Also, in this case, the second replacement device 550 in the replacement device 122 and the evacuation device 123 is arranged in the direction in which the component supply cassettes 131 are arranged as in the third embodiment. It will be impossible to move to.

Japanese Patent Application No. 8-270,850, filed October 14, 1996, including the description, claims, drawings, and abstract Japanese Patent Application No. 8—2 7 0 8 5 1 filed on Oct. 14, Japanese Patent Application No. 7—2 4 9 7 4 1 filed on September 27, 1995 All of the disclosures in this issue are incorporated herein by reference.

Also, while the present invention has been fully described in connection with preferred embodiments thereof with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as included within the scope of the present invention as set forth in the appended claims, without departing from the scope thereof.

Claims

The scope of the claims

1. A component holding device (21) having a nozzle (22) that moves while holding a component between a component suction position and a component mounting position;

The component supply cassettes (131, 131A, 131B) for sending out parts have a group of cassettes (132, 132A, 132B, 533) arranged in parallel, and the arrangement of the component supply cassettes in the component supply area (371). The cassette group is moved in the arrangement direction of the component supply cassette within the moving range of the cassette group along the direction, and the component of the component supply cassette containing a desired component is moved to the component suction position. In addition to positioning, when parts to be supplied to the component holding device are out of stock or replaced, the cassette group is moved in the area located on the side opposite to the component holding device with respect to the component supply area. A component supply and retraction device (101, 201, 301, 502) for moving the cassette group in a direction perpendicular to the arrangement direction to a retraction area (372) corresponding to the range;

The component holding device is connected to the component supply and retraction device, the component is sucked at the component holding position from the component supply cassette positioned at the component suction position, and the component is mounted on the object. A control unit (251, 361, 580) for exchanging and retreating the cassette group by the component supply and retraction device when a component supplied to the component holding device is sold out or replaced;

Component mounting device equipped with

2. The above parts supply and retraction device

A moving body (110) for removably mounting a first transfer table (130) on which the cassette group (132) is mounted; and the moving unit (110) within the moving range of the cassette group. A component supply device (101) for positioning the component of the component supply cassette, in which a desired component is accommodated by moving the moving body in the arrangement direction of the component, to the component suction position;

The component supply cassette is disposed in the retreat area and is adjacent to the component supply device. A replacement and evacuation device (201) arranged side by side along the arrangement direction of the components, wherein the replacement device (202, 211) has the component supply cassettes (131) arranged in parallel. A second transfer table (135) on which a set group is mounted is detachably mounted, and a first transfer device (112) is provided. The first transfer device is an arrangement of the component supply cassette. The second transfer table is moved in a direction orthogonal to a plane with respect to the direction, and the second transfer table is transferred to and from the moving body. The evacuation device (203, 212) (2) The second transfer device has a transfer device (112), and the second transfer device moves the first transfer table in a direction orthogonal to the arrangement direction of the component supply cassettes in a plane and intersects with the moving body. Exchange and evacuation devices for transferring the first transfer table between

The control device includes:

The component holding cassette is connected to the component holding device, the component supply device, the replacement and retreat device, and is picked up by the component holding device from the component supply cassette positioned at the component suction position to cover the component. When the part is out of stock or replaced in the first transfer table, the first transfer table is evacuated to the evacuation device, and the second transfer table is moved from the replacement device The component mounting device according to claim 1, wherein the component mounting device is transferred to a body.

3. The component mounting device according to claim 2, wherein the replacement and evacuation device (211, 212) is movable.

4. The above parts supply and retraction device

When the transfer table (531) on which the cassette group (533) is mounted is detachably held and the parts to be supplied to the parts holding device are out of stock or replaced, the parts supply cassette is arranged in the arrangement direction. A second replacement device (550) for moving the transfer table to the evacuation area in an orthogonal direction on a plane,

A plate-like member (541) on which the second replacement device is placed; and the plate-like member is moved in the arrangement direction of the component supply cassette within a moving range of the cassette group in the component supply area. The component supply cassette containing the desired components The component mounting device according to claim 1, further comprising: a component supply device (502) for positioning a component in the component at the component suction position.

5. The second replacement device is

A first arm member (555) mounted on the plate-shaped member of the component supply device and moving in a direction orthogonal to a plane with respect to the arrangement direction of the component supply cassette; When the transfer table is replaced, the first arm member moves in the orthogonal direction along with the movement of the first arm member in the orthogonal direction. When the transfer table is not replaced, the first arm member moves when the transfer table is not replaced. A second arm member (570) overlapping the member and disposed on the plate-like member;

An engagement device attached to the second arm member and engaged with the transfer table;

The component mounting apparatus according to claim 4, comprising:

6. The above parts supply and retraction device

A first cassette group (1 32 A) and a second cassette group (1 32 B) in which component supply cassettes (1 3 1) for sending out parts are arranged in parallel, respectively;

In the component supply area, the first cassette group is arranged in the component supply cassette arrangement direction so that components are supplied from the component supply cassette constituting the first cassette group to the component suction position. A first moving device (31OA) for moving and moving the first cassette group in a direction orthogonal to the arrangement direction in a plane orthogonal to the arrangement direction and disposing the first cassette group from the component supply area to the retreat area (3722) When,

The second cassette group is arranged in the component supply area in the arrangement direction of the component supply cassettes so that components are supplied from the component supply cassettes constituting the second cassette group to the component suction positions. Within the moving range of the second force set group in the arrangement direction, and moving the second cassette group in a direction orthogonal to a plane with respect to the arrangement direction and moving the retreat area (37 2 ), Wherein the moving direction of the second cassette group in the arrangement direction is parallel to the moving direction of the first cassette group in the arrangement direction. And the above The moving range of the second cassette group is made to correspond to the moving range of the first cassette group, and the first moving device is arranged so as to be located between the component holding device and the second moving device. A second moving device,

The control device includes:

A component connected to the component supply device, the first moving device, and the second moving device, the component supplied to the component suction position is suctioned by the component holding device, and the component is mounted on an object to be mounted; When one of the first cassette group and the second cassette group is retracted from the component supply area to the retreat area, one of the first and second moving apparatuses is operated to move. Either the first cassette group or the second cassette group is retreated to the evacuation area, and the first cassette is operated by moving the other of the first moving device and the second moving device or the other. The other one of the group and the second cassette group is arranged from the evacuation area to the component supply area, and the component is supplied from the component supply cassette in the other one of the first cassette group and the second cassette group. To do,

The component mounting device according to claim 1.

7. One cassette group (1 32, 1 32 A, 5 3 3) in which the component supply cassettes (1 3 1, 13 1 A) for sending out parts are arranged in parallel is placed in the component supply area.

In (37 1), the components of the component supply cassette containing the desired components are moved within the moving range of the cassette group along the arrangement direction of the component supply cassettes and the component holding device ( 21) When the parts are supplied to the parts holding device by positioning to the parts suction position of 1), and the parts to be supplied to the above-mentioned parts holding device are out of stock or replaced, it is an area corresponding to the movement range of the cassette group and the above arrangement The cassettes are automatically retracted to the evacuation area (3 7 2) located on the plane orthogonal to the direction,

A new cassette group is automatically loaded into the parts supply area instead of the retracted cassette group,

From the component supply cassette provided for the new cassette group, the component holding device A component mounting method that supplies components to the device.

8. A parts supply cassette (1 3 1) for sending out parts has a first cassette group (1 32 A) and a second cassette group (1 32 B) arranged in parallel. When supplying parts from only one cassette group,

When retracting either the first cassette group or the second cassette group from the component supply area to the evacuation area, one of the first moving apparatus and the second moving apparatus is operated to operate. One of the first cassette group and the second cassette group is retracted to the retreat area, and one of the first and second moving devices is operated to operate the first cassette group. And the other of the second cassette group is displaced from the evacuation area to the component supply area, and component supply is performed from the component supply cassette in the other one of the first cassette group and the second cassette group. The component mounting method according to claim 7, wherein the method is performed.