JP3115973B2 - Component supply part exchange system for mounting machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting machine body having a detachable component supply unit having a large number of tape feeders arranged side by side, and to a system for replacing the component supply unit. is there.

[0002]

2. Description of the Related Art Conventionally, a large number of tape feeders are arranged in parallel in a component supply unit of a mounting machine for mounting chip components on a printed circuit board, and the tape components are sequentially fed out by a tape feeder to form a movable head unit. There is known a device in which a chip component is taken out of a tape feeder by a suction nozzle provided.

In the tape feeder, for example, a tape in which chip components are stored at predetermined intervals is led out from a reel and guided to a predetermined component pick-up unit by a suction nozzle, and the chip components are picked up from the component pick-up unit. As the tape is moved, the tape is intermittently fed out.

[0004] In this type of mounting machine, a large number of tape feeders are collectively used when the tape of each tape feeder is consumed, or when the type of chip components to be mounted is greatly changed due to a change in a printed circuit board or the like. For example, recently, for example, recently, a component supply unit mounted on a feeder holding plate in a state in which a large number of tape feeders are arranged in parallel is configured, and this component supply unit is attached to a mounting machine body. A tape feeder has been developed in which the tape feeder can be collectively exchanged with respect to the mounting machine body by making the tape feeder detachable. According to this apparatus, the tape feeder can be efficiently exchanged by removing the component supply unit mounted on the mounting machine body and replacing it with a replacement component supply unit prepared in advance.

[0005]

By the way, in the above-described mounting machine in which the tape feeder is replaced by replacing the component supply units at once, a large number of replacement component supply units are prepared and these are selectively installed. It is more advantageous from the viewpoint of mounting efficiency that the mounting work can be performed on various types of printed boards by exchanging them.

Therefore, when a large number of component supply units are prepared to accommodate more types of printed circuit boards, a sufficient space for storing these components is required. However, there is a case where a sufficient space for storing a large number of component supply units cannot be secured due to the relationship with a line configuration or the like in reality. Therefore, a means capable of storing more component supply units in a small space is desired. .

[0007] Further, since the stored component supply unit is transferred to the mounting machine main body by using a transfer means such as a cart, it is necessary to store a large number of component supply units as described above. It is preferable that work such as taking out a desired component supply unit from a storage location or storing a used component supply unit mounted on a truck in a storage location can be performed easily and quickly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is possible to easily and quickly remove and store a component supply unit while storing a large number of component supply units in a small space. Accordingly, an object of the present invention is to provide a component supply unit replacement system of a mounting machine which can efficiently perform a component supply unit replacement operation.

[0009]

The invention according to claim 1 is
A mounter body having a detachable component supply unit with a large number of tape feeders arranged in parallel, a cart for transporting the component supply unit, and a stocker containing a plurality of replacement component supply units. And a delivery mechanism for delivering the component supply unit between the stocker and the cart.

According to a second aspect of the present invention, in the component supply unit replacing system for the mounting machine according to the first aspect, the delivery mechanism draws out the component supply unit stored in the stocker, and And a lifting mechanism for lifting and lowering the holding member.

According to a third aspect of the present invention, in the component supply unit exchange system for a mounting machine according to the first or second aspect, the component supply unit has a supported portion and is orthogonal to the direction in which the tape feeders are arranged. While the center of gravity of the component supply unit in the direction of
The mounting machine body, the stocker, and the holding member are each provided with a support portion for supporting the supported portion, and the support portion is provided with a roller member for supporting the supported portion. It is.

[0012]

According to the first aspect of the present invention, the part supply unit to be replaced is taken out of the replacement part supply units stored in a plurality of stages in the stocker by the delivery mechanism and transferred to the carriage. Is done.

According to the second aspect of the present invention, the component supply unit accommodated in the stocker is first pulled out of the stocker onto the holding member by the drawer mechanism, and then moved to the carriage by the operation of the elevating mechanism. It is raised and lowered to a predetermined height where it can be mounted.

According to the third aspect of the present invention, when the component supply unit is transferred to each support of the mounting machine main body, the stocker and the holding member, the component supply unit is smoothly moved by the roller members of each support. Will be transferred to At this time, since the position of the center of gravity of the component supply unit in the direction perpendicular to the direction in which the tape feeders are arranged is within the supported portion, the balance of the component supply unit can be appropriately maintained without providing a clamp member or a guide member. It becomes possible to transfer while doing.

[0015]

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

FIGS. 1 and 2 schematically show the structure of the entire mounting machine applied to the present invention. FIG. 1 shows a front view of the mounting machine, and FIG. 2 shows a plan view of the mounting machine. .

In these figures, reference numeral 1 denotes a mounting machine main body, which comprises a base 2 and a pair of frames 3A, 3B which are erected on the base 2 at predetermined intervals in the left and right directions (X-axis direction). Have.

A head unit 4 is provided above the mounting machine main body 1 so as to be movable in the X-axis direction and the Y-axis direction. That is, at the upper ends of both frames 3A and 3B,
A fixed rail 5 extending in the Y-axis direction is provided, and a head unit supporting member 6 is mounted on the fixed rail 5 so as to be movable in the Y-axis direction, and one of the frames 3A, 3B is provided.
A Y-axis servo motor (not shown) is attached to the head unit, and the head unit support member 6 is operated by the motor via a ball screw (not shown). The head unit support member 6 is provided with a guide member 7, an X-axis servo motor 8, and a ball screw 9 extending in the X-axis direction, so that the head unit 4 can move on the guide member 7 in the X-axis direction. It is mounted and is operated via the ball screw 9 by the X-axis servo motor 8.

The head unit 4 is provided with a suction nozzle (not shown) so as to be able to move up and down and rotate. The head supply unit 4 is moved in the X and Y axes, and the suction nozzle is moved up and down and rotated. The chip components are picked up and mounted on a printed circuit board (not shown). Since the specific structure of the head unit 4 is conventionally known, detailed illustration and description thereof will be omitted.

A component supply unit installation section 11 is provided between the pair of frames 3A and 3B on the base 2 of the mounting machine main body 1. The component supply section unit installation section 11 has components. The supply unit 12 is detachably attached.

The component supply unit 12 has a large number of tape feeders 13 arranged in parallel and a feeder holding plate 14 for supporting the tape feeders 13. Then, both end portions of the feeder holding plate 14 are supported by support portions 15A and 15B provided inside the frames 3A and 3B, respectively, and are clamped by the clamp means 16, so that the component supply unit unit 1 is provided.
2 is fixed to the mounting machine main body 1.

The feeder holding plate 14 is formed in a plate shape having an appropriate thickness so as to obtain the strength and rigidity required to hold a large number of tape feeders 13. Projecting pieces 14a extending in the width direction are fixed to both ends of the feeder holding plate 14, and the feeder holding plate 14 and the projecting pieces 14a constitute a supported portion of the component supply unit unit 12. doing.

FIG. 3 shows a specific structure of the tape feeder 13. In this figure, a tape feeder 1
Numeral 3 is detachably attached to the feeder holding plate 14 by the clamp member 21 in a state where the lower surface of the front part thereof is in contact with the upper surface of the feeder holding plate 14.

At the rear of the tape feeder 13, a reel 23 around which a tape 22 is wound is rotatably mounted. The tape 22 is composed of a tape body in which a large number of component storage sections for storing chip components are formed at predetermined intervals, and a cover tape 22a that covers the upper surface thereof.

At the front end of the tape feeder 13, a component take-out portion 24 is provided. The tape 22 led out from the reel 23 is guided to the component take-out portion 24 via guide rollers and the like, where the tape main body is moved. Then, the cover tape 22a is peeled off, so that the chip components can be taken out by the suction nozzle of the head unit 4.

Below the component pick-up unit 24, there is provided a feeding mechanism 25 for intermittently feeding the tape 22 guided to the component pick-up unit 24 by a predetermined amount. The feeding mechanism 25 includes a sprocket (not shown) that engages with the tape 22 and a ratchet 26 connected to the sprocket. The tape 22 is fed as the ratchet 26 rotates in one direction. It has become.

Further, the illustrated tape feeder 13 includes:
A take-off mechanism 27 for picking up the cover tape 22a peeled off from the tape main body at the component take-out section 24 is provided, and the cover tape is guided to the take-up mechanism 27 via a guide roller or the like.

The take-off mechanism 27 includes a pair of rollers 27a and 27b which are in close contact with each other, and one of the rollers 27a is connected to a driving member 28 provided coaxially with the pair via a one-way clutch. . The drive member 28 and the ratchet 26 of the component take-out section 24 are connected via links 29, 30, and 31.

An air cylinder 32 is provided on the tape feeder 13 to operate the feeding mechanism 25 and the take-up mechanism 27. The feed-out mechanism 25 and the take-off mechanism 27 are connected to the rod 32a of the air cylinder 32. In the illustrated embodiment, the driving member 28 is connected to the rod 32a of the air cylinder 32 via the lever 33 and the link 34,
The feeding mechanism 25 is connected to the rod 32 a of the air cylinder 32 via these and the links 29, 30, 31.

FIG. 4 shows a specific example of the support section 15A and the clamp means 16 in the component supply section unit installation section 11. In these figures, only the support portion 15A and the clamp means 16 on one side are shown, but the support portion 15B and the clamp means 16 on the opposite side are formed in substantially the same manner.

In the figure, the support portion 15A has a support surface 45 for supporting the feeder holding plate 14 at its upper end.
have. In addition, the clamp means 16 includes a clamp rod 44 and a link 43 pivotally supported by the frame 3A of the mounting machine main body 1 and a tip end of the clamp rod 44 and the link 43 inside the frame 3A. It has a supported clamp plate 40 and, although schematically shown, a clamping air cylinder 46 attached to the frame 3A.

The clamp rod 44 is connected to the frame 3A.
Link portion 44a from the fulcrum to the tip
And an extension portion 44b extending below the fulcrum portion. The vicinity of the end of the extension portion 44b is in contact with the tip of the rod 46a of the air cylinder 46 for clamping.
The link portion 44a of the clamp rod 44 and the link 4
3 are arranged in parallel to each other with the same length and at a predetermined interval, and the frame 3A and the crank plate 40 constitute a parallel link mechanism.

A plurality of guide rollers 41 arranged at the same height at a predetermined interval are provided on the clamp plate 40.
And a clamp roller 42 located above the guide roller 41 are protruded inward, and between the guide roller 41 and the clamp roller 42,
The feeder holding plate 14 is inserted. In the illustrated embodiment, two guide rollers 41 are provided, which are mounted on the connecting shaft of the clamp rod 44 and the link 43 and the crank plate 40, respectively, and mounted on the connecting shaft of the clamp rod 44. The clamp roller 42 is positioned above the guide roller 41
Are protruding.

The clamping air cylinder 46 includes one-way orifices 49a, 49b and a switching valve 47.
The switching valve 47a, 47b is connected to the air pressure supply unit 48 via the air pressure supply unit 47a, 47b, and the rod 46a of the clamping air cylinder 46 advances and retreats to rotate the clamp rod 44. In response, the clamp plate 40 is displaced between a rising position indicated by a solid line in FIG. When the crank plate 40 is at the raised position, the feeder holding plate 14 is in an unclamped state in which it can slide freely on the guide roller 41. When the crank plate 40 is at the lowered position, the guide roller 41 is The clamp portion 42 is immersed below the support surface 45 of the support portion 15A, and the clamp roller 42 presses the feeder holding plate 14 against the support surface 45 to be in a clamped state.

The switching valves 47a and 47b are
A rod protruding drive state in which air is supplied to one air chamber 461 of the clamp air cylinder 46 and air is discharged from the other air chamber 462 (a state shown by a solid line in FIG. 4), and air is supplied from the one air chamber 461. Is discharged to the other air chamber 46.
2 can be switched to three stages: a rod retracting driving state for supplying air to the air chamber 2 and a driving interrupting state for interrupting the flow of air to the air chambers 461 and 462. Therefore, the switching valve 47 is driven during driving in the rod projecting direction or the retracting direction.
When a and 47b are switched to the drive interrupted state, the rod 46
a can be stopped in the middle of the stroke. The switching valves 47a and 47b are manual valves.

In the component supply unit 12, the position of the center of gravity in the Y-axis direction is determined by the feeder holding plate 14 and the projecting piece, which are the supported portions of the component supply unit 12, as indicated by the white arrows in FIG. 14a. That is, the component supply unit installation section 1
1, the feeder holding plate 14 and the protruding piece 14a are sandwiched between the guide rollers 4 with the center of gravity positioned therebetween, even if the component supply unit 12 is in the unclamped state, as shown in FIG.
The support at 1 prevents the component supply unit 12 from losing its balance and falling over without providing a guide member or the like.

As shown in FIG. 5, a plurality of replacement component supply units 12 are housed on the side of the mounting machine main body 1 configured as described above (in the embodiment, on the side in the Y-axis direction). A stocker 50 is provided.

FIGS. 5 to 7 schematically show the structure of the stocker 50 applied to the present invention. In these figures, the stocker 50 has a frame 51, a unit storage section 52 for storing the component supply unit 12, a stocker 50, and a cart 7 described below.
And a delivery mechanism for delivering the component supply unit 12 between the two. In the illustrated embodiment, three stages of unit storage sections 52 are provided in the vertical direction of the frame 51.

A pair of left and right (top and bottom in FIG. 6) side plates 53 attached to the frame 51 are provided in each of the unit storage sections 52, and are arranged at the same height on the upper edge portions of these side plates 53. The plurality of guide rollers 54 are provided to project inward. Then, both ends of the feeder holding plate 14 and the projecting pieces 14a are placed on these guide rollers 54.
The component supply unit 12 is accommodated in each unit accommodating section 52 in a state in which is supported. At this time, the component supply unit 12 supported by the guide roller 54 is not fixed by a clamp or the like, but the center of gravity in the Y-axis direction is within the range of the feeder holding plate 14 and the protruding piece 14a as described above. Therefore, it is stably stored in the unit storage section 52.

Each of the unit storage sections 52 is provided with a draw-out mechanism for pulling out the stored component supply unit 12. The pull-out mechanism includes a pair of left and right guide rods 55 extending in the direction in which the guide rollers 54 are arranged substantially above the side plates 53, a slider 56 slidably mounted on the guide rods 55, and a slider 56. It comprises a pair of left and right engaging members 57 for the component supply unit 12, and a drive mechanism for operating the slider 56.

As shown in FIG. 6, each of the engaging members 57 has a concave portion on the inner side, and is a supported portion of the component supply unit 12 housed in each unit housing 52, that is, a feeder holding plate. The end of 14 and the protruding piece 14a are in a state interposed in the recess.

The drive mechanism includes a drawer motor 58 fixed to each side plate 53 and an endless chain 59 rotated and moved by the drawer motor 58. Each chain 59 is attached to a corresponding one of the sliders 56 by being attached to a sprocket provided at the shaft, its vicinity, and both ends of the unit storage portion 52.

That is, in the drawer mechanism, when each drawer motor 58 is driven, each chain 59
Are rotated at the same speed, and the slider 56 is
5, the corresponding engagement members 57 and the supported portions of the component supply unit 12 are engaged with each other, and the stored component supply unit 12 is moved to the storage position indicated by the dashed line in FIG. From the front of the stocker (to the right in FIGS. 5 to 7) to a pull-out position (indicated by a two-dot chain line in FIG. 5).
4 is moved integrally with the slider 56.

The drawer position, that is, the stocker 5
0, a holding member 60 for holding the component supply unit 12 pulled out from each unit storage unit 52.
The holding member 60 is supported by a lifting mechanism so as to be able to move up and down.

The holding member 60 includes a pair of holding plates 61 provided on the inside of both sides of the frame 51 in front of the stocker, and a plurality of guide rollers 62 projecting inside the upper edge of each holding plate 61. And

Each of the holding plates 61 has a frame 51
Are mounted slidably on a pair of left and right vertical shafts 63 supported by a pair of left and right endless chains 65 which are rotatably moved by the drive of a lift motor 64. Vertical shaft 63 according to the rotational movement of each chain 65
It goes up and down along.

Each of the holding plates 61 of the holding member 60 is connected with a wire 66. These wires 66 are guided above the frame 51 as shown in FIGS. 5 and 6, and are led out to the rear side of the stocker 50 via a plurality of pulleys. 67 is detachably hung. That is, by raising the holding member 60 using the weight 67, the load on the lifting motor 64 when the holding member 60 is raised is reduced.

When the stored component supply unit 12 is pulled out, each holding member 60 is moved up and down to a predetermined height of the unit storage section 52 by driving the elevation motor 64, and then the unit storage section 52 is moved to the predetermined position. When the drawer mechanism operates, the component supply unit 12 is pulled out and held by the holding member 60. More specifically, as shown in FIG. 7, the holding member 60 is moved up and down and stopped so that the guide roller 62 of the holding member 60 and the guide roller 54 of the unit storage section 52 are at the same height. By moving the slider 56 of the pull-out mechanism to the pull-out position (the position indicated by the two-dot chain line in FIG. 7), the component supply unit 12 is moved onto the guide roller 62 of the holding member 60. At this time, the component supply unit 12 supported by the guide roller 62 is not fixed by a clamp or the like, but as described above, the center of gravity in the Y-axis direction is
4a, the holding member 60 is stably held. Then, in this state, when the lifting motor 64 is driven to move the holding member 60 up and down, the supported portion of the component supply unit 12 interposed in the recess of the engaging member 57, that is, the feeder holding plate 14 and The protruding piece 14a moves up and down from within the recess,
The engagement state of the component supply unit 12 with the engagement member 57 is released.

By the way, in the stocker 50,
As shown in FIGS. 5 and 6, the mounting machine body 1
Is provided with a part into which a carriage 70 for transferring the component supply unit 12 can enter.
Of the component supply unit 12 with respect to.

In the embodiment, for example, a push cart is used as the cart 70, and a pair of left and right side plates arranged slightly narrower than the interval between the holding members 60 as shown in these figures is provided on the upper part of the cart. A support shaft 71a is provided to project from a tip portion of each of the side plates 71, and a stay 72 is connected between the side plates 71. That is, when the holding member 60 holding the component supply unit 12 is lowered in the state shown in FIG. 5 in which the cart 70 has protruded into the delivery part of the stocker 50, the lower surface of the feeder holding plate 14 of the component supply unit 12
And the lower surface of the frame of the tape feeder 13 is supported by a stay 72. In this state, the component supply unit 12 is From 50, it is delivered to the carriage 70.

A procedure for replacing the component supply unit by the mounting system of the present invention configured as described above will be described.

When the component supply unit 12 is replaced, first, the component supply unit 12 mounted on the component supply unit installation section 11 of the mounting machine main body 1 is removed. Is stored.

In this case, first, the clamp plate 40 is raised in accordance with the switching operation of the switching valves 47a and 47b of the clamp means 16 by the operator, and the component supply unit mounted on the component supply unit installation section 11 is supplied. The unit 12 is brought into an unclamped state (a state shown by a solid line in FIG. 4).

When the release of the clamp for the component supply unit 12 is completed in this way, then, the operator
As shown by the two-dot chain line in FIG. 5, the carriage 70 is set on the mounting machine main body 1, and the support shaft 71 a of the carriage 70 protrudes into the component supply unit installation section 11. At this time, the carriage 70
The support shaft 71a of the first member is projected below the feeder holding plate 14 with respect to the component supply unit 12.

When the setting of the carriage 70 on the mounting machine main body 1 is completed, the operator again operates the clamping means 16.
The switching of the switching valves 47a and 47b is performed, and the clamp plate 40 is lowered from the raised position shown by the dashed line in FIG. 8, and stopped at the position shown by the solid line slightly lowered from the raised position. In this case, the rod cannot be stopped at an intermediate position by an air supply mechanism of a general air cylinder. However, if the switching valves 47a and 47b shown in FIG. It can be stopped halfway, and the above-mentioned stopped state can be secured.

In this state, the feeder holding plate 14 of the component supply unit 12 is supported on the support shaft 71 of the carriage 70, and the lower surface of the frame of the tape feeder 13 (shown in FIG. 8) is supported by the stay 72 of the carriage 70. In addition, the clamp roller 42 does not contact the feeder holding plate 14. As a result, the component supply unit 12 of the mounting machine main body 1 is transferred to the carriage 70, and can be removed from the mounting machine main body 1.

When the component supply unit 12 of the mounting machine main body 1 is transferred to the carriage 70 as described above, the carriage 70 is separated from the mounting machine main body 1 by an operator, and FIG.
As shown by the solid line in FIG.
2 and the trolley 70 are set in the delivery section of the stocker 50. At this time, the holding member 60 of the stocker 50 is waiting near the lower end of the stocker 50 as shown by the two-dot line in FIG.

When the stocker 50 is set, a unit storage section 52 in which the component supply unit 12 is to be stored is designated by a switch operation on a predetermined operation panel by an operator, and the lifting motor 64 is driven. Then, the holding member 60 is raised. Then, as the holding member 60 rises, the feeder holding plate 14 and the projecting piece 14 a of the component supply unit 12 are lifted while being supported by the guide rollers 62 of the holding member 60, whereby the carriage 70 moves to the holding member 60. Component supply unit 1
2 is transferred. Also, the designated unit storage section 52
The slider 56 of the pull-out mechanism is moved to the pull-out position and stands by at this position.

When the holding member 60 reaches the designated height of the unit storage section 52, the lifting and lowering of the holding member 60 is stopped, and the drawer mechanism is operated again to move the slider 56 to the storage position. . That is, when the holding member 60 is moved up and down as described above in a state where the slider 56 is in the pulled-out position, the component supply unit 1
The second feeder holding plate 14 and the protruding piece 14a fit into the recesses of the engagement member 57 attached to the slider 56,
In this state, the slider 56 is moved to the storage position.
As a result, the engaging member 57 and the component supply unit 12 are engaged, and the component supply unit 12 is moved to the slider 56.
Is moved from the holding member 60 to the unit storage section 52 and stored together.

As described above, the component supply unit 1
2 is removed from the mounting machine body 1 and stored in the stocker 50.

When the storage is completed, the stocker 5
The desired component supply unit 12 stored in the main unit 0 is taken out, and the component supply unit 12 is mounted on the mounting machine main body 1. This procedure is performed basically in the reverse order of the removal of the component supply unit 12 described above.

First, an operator designates a required component supply unit 12 to be taken out of the stocker 50 by using an operation switch on the operation panel. The component supply unit 1 in which the holding member 60 is designated accordingly.
The component supply unit 12 is pulled out and transferred to the holding member 60 by ascending and descending to the height of the unit storage section 52 storing the unit 2 and then stopping the unit storage section 52 to operate.

When the required component supply unit 12 is transferred onto the holding member 60, the holding member 60 is lowered, and the component supply unit 12 is accordingly moved to the support shaft 71.
a and is transferred to the carriage 70 while being supported by the stay 72.

When the required component supply unit 12 is transferred to the carriage 70 as described above, the worker
0 is separated from the mounting machine body 1, whereby the component supply unit 12 is taken out of the stocker 50. Then, as shown by the two-dot chain line in FIG. 5, the carriage 70 and the component supply unit 12 are integrally approached to the mounting machine main body 1, and the component supply unit 12 is set in the component supply unit installation section 11. .

At this time, in the component supply section unit installation section 11 of the mounting machine main body 1, the state where the clamp plate 40 has removed the component supply section unit 12, ie, the clamp plate 40 is slightly lowered from the raised position. 8, the feeder holding plate 14 of the component supply unit 12 is fixed to the clamp roller 42 and the guide when the component supply unit 12 is set in the product supply unit installation section 11. It is inserted between the rollers 41.

When the setting of the component supply unit 12 to the component supply unit installation section 11 is completed, the switching valves 47a and 47b are switched by the operator, and the clamp plate 40 is connected to the dashed line in FIG. (Indicated by the solid line), the carriage 70 is temporarily stopped after being lifted to the ascending position, and the carriage 70 is separated from the mounting machine body 1 during the stop period, whereby the component supply unit 12 is moved from the carriage 70 to the mounting machine body 1 Transferred to

When the transfer is completed, the switching valves 47a and 47b are switched again by the operator, whereby the component supply unit 12 is connected to the clamping means 16
As a result, the clamps are pressed by the supports 15A and 15B, and the replacement of the component supply unit 12 is completed.

In the above procedure, when storing the detached component supply unit 12 in the stocker 50, the unit storage unit 5 located at a position lower than the height of the carriage 70 is used.
When 2 (the lowermost unit storage unit in FIG. 5) is designated, the holding member 60 that has received the component supply unit 12 from the carriage 70 is once raised to a predetermined height, stopped, and stopped. During the period, after the cart 70 is separated from the stocker 50 by the worker, the holding member 60 is lowered to the designated height of the unit storage section 52 to store the component supply section unit 12 in the unit storage section 52. It has become.

When removing the component supply unit 12 from the stocker 50, the component supply unit 12 (the component supply unit at the lowest position in FIG. 5) stored at a position lower than the height of the carriage 70 is used. If specified, the cart 70 is once separated from the stocker 50 by the worker, and during that time, the holding member 60 is lowered to transfer the specified component supply unit 12 to the holding member 60. . After the transfer, the holding member 60 is stopped after being raised to a predetermined position set higher than the transfer portion to the carriage 70, and is stopped by the worker during the suspension period.
0 is set on the stocker 50 and the holding member 60 is lowered, so that the component supply unit 12 is transferred to the carriage 70.

According to the above-described system configured as described above, the unit storage units 52 for storing the component supply unit 12 are provided in multiple stages (three stages in the embodiment) in the vertical direction. Since the stocker 50 is configured to be able to store the components 12 in a stacked state, a large number of component supply units 12 are stored in a small space, and when necessary, the required component supply units 12 are taken out of these and replaced. This is extremely advantageous when frequent replacement of the component supply unit 12 is required, for example, mounting of chip components on many types of printed circuit boards.

In particular, in the stocker 50, the component supply unit 1 is constituted by a drawer mechanism provided in each unit storage section 52 and a vertically movable holding member 60 for holding the component supply unit 12 pulled out by the unit.
2, a required component supply unit 12 is automatically transferred to a carriage 70 set in a predetermined delivery section below the stocker in accordance with an operator's specification.
Alternatively, since the used component supply unit 12 supported by the carriage 70 is stored in the predetermined unit storage unit 52, a large number of component supply unit units 1 are provided.
2 can be very easily and quickly taken out and stored while being stored in a stacked state.

In the above system, the component supply unit 12 is stored in the unit storage 52 and the holding member 60.
Are provided, and the component supply unit 12 is pulled out while being moved on the guide rollers 54, 62 by the pull-out mechanism, so that the component supply unit 12 can be pulled out smoothly. it can. At this time, in the component supply unit 12, the position of the center of gravity in the Y-axis direction is
Feeder holding plate 14 and projecting piece 14a as supported portions of
(Indicated by the white arrow in FIG. 4), there is no need to provide a guide member or the like at the time of transfer to secure the balance of the component supply unit unit 12, and to provide a unit storage unit. It is not necessary to fix the component supply unit 12 with a clamp member or the like even at the time of storage at 52. Therefore, a member for fixing the component supply unit 12 in the stocker 50 is not required, so that there is an advantage that the structure of the stocker 50 can be simplified. This eliminates the need for a release operation or the like, which is advantageous in terms of work efficiency.

The above embodiment is an embodiment showing the present invention, and its specific configuration can be changed as appropriate without departing from the gist of the present invention. For example, in the above embodiment, the stocker 50 has a three-stage unit storage section 52.
Is provided, but the unit storage portion 52 of the embodiment or more is provided.
May be provided in the vertical direction. Further, in the embodiment, the delivery mechanism such as the drawer mechanism in the stocker 50 is configured by using a motor as a drive source. However, a configuration using an air cylinder or a hydraulic cylinder may be adopted as an exception.

Further, in the clamping means 16 of the mounting machine main body 1, in order to enable the clamp air cylinder 46 to be switched to three stages of a rod protruding driving state, a rod retracting driving state and a driving interruption state, FIG. However, in addition to the air circuit, for example, as shown in FIG. 9, an air circuit is configured by using switching valves 61 and 62 and a valve 60 switched by these operations. By doing so, it is possible to switch the clamping air cylinder 46 between the three stages described above. However, in consideration of responsiveness and the number of valves constituting the air circuit, the embodiment shown in FIG. 4 is more advantageous.

[0075]

As described above, according to the present invention,
Replacement component supply units are stored in a plurality of levels in the stocker, and the component supply unit to be replaced is taken out of these units by the delivery mechanism and transferred to the trolley. The component supply unit can be taken out and stored very easily and quickly while storing the unit, and the replacement operation of the component supply unit can be performed efficiently.

In this case, the delivery mechanism is composed of a drawer mechanism for pulling out the component supply unit accommodated in the stocker, a holding member for holding the component supply unit pulled out by this, and raising and lowering the holding member. The component supply unit can be pulled out of the stocker onto the holding member by the pull-out mechanism, and then can be raised and lowered to a predetermined height that can be transferred to the carriage by operating the lifting / lowering mechanism.

Also, the center of gravity of the component supply unit in the direction orthogonal to the direction in which the tape feeders are arranged is located within the supported portion of the component supply unit. If a support portion for supporting the supported portion is provided and a roller member for supporting the supported portion is provided on the support portion, the component supply unit unit is transferred to each support portion of the stocker and the holding member at the time of transfer. In addition, the component supply unit is smoothly transferred by each roller member of each support unit. In addition, since the position of the center of gravity of the component supply unit in the direction orthogonal to the direction in which the tape feeders are arranged is within the supported portion, the balance can be maintained without transferring the component supply unit without providing a clamp or guide member. It can be suitably secured.

[Brief description of the drawings]

FIG. 1 is a front view showing a mounting machine applied to a component supply unit exchange system of the present invention.

FIG. 2 is a plan view showing a mounting machine applied to the component supply unit exchange system of the present invention.

FIG. 3 is a side view showing a specific structure of a tape feeder in the component supply unit.

FIG. 4 is a schematic cross-sectional view taken along the line AA of FIG. 2, showing a specific example of a support section and a clamp means in the component supply section unit installation section.

FIG. 5 is a schematic side view showing a stocker.

FIG. 6 is a schematic sectional view taken along the line BB in FIG. 5 showing the stocker.

FIG. 7 is a schematic cross-sectional view taken along the line CC in FIG. 6 showing the stocker.

FIG. 8 is a schematic view showing the operation of the clamp means when the component supply unit is attached to and detached from the mounting machine main body.

FIG. 9 is a circuit diagram showing another embodiment of the air circuit for operating the air cylinder for clamping.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounter main body 12 Component supply part unit 13 Tape feeder 50 Stocker 52 Unit storage part 60 Holding member 70 Cart

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-279239 (JP, A) JP-A-2-132895 (JP, A) JP-A-1-310826 (JP, A) JP-A-60-1985 56702 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H05K 13/02

Claims (3)

(57) [Claims] 1. A mounting machine body detachably provided with a component supply unit having a large number of tape feeders arranged in parallel, a carriage for transferring the component supply unit, and a plurality of replacement component supply units. A component supply unit exchange system for a mounting machine, comprising: a stocker stored in a step; and a delivery mechanism for delivering a component supply unit between the stocker and the cart. 2. The delivery mechanism according to claim 1, further comprising: a drawer mechanism for pulling out the component supply unit accommodated in the stocker; a holding member for holding the component supply unit pulled out by the delivery mechanism; 2. A component supply unit replacement system for a mounting machine according to claim 1, further comprising a lifting mechanism for lifting. 3. The component supply unit has a supported portion, and the center of gravity of the component supply unit in a direction orthogonal to the direction in which the tape feeders are arranged is located within the supported portion. The mounting body, the stocker, and the holding member are each provided with a support portion for supporting the supported portion, and the support portion is provided with a roller member for supporting the supported portion. Item 3. A component supply unit exchange system for a mounting machine according to item 1 or 2.