JP7229405B2 - Component placement system - Google Patents

Description

The present specification relates to a replacement device that automatically replaces a replacement element detachably mounted on a component mounting device.

2. Description of the Related Art A technology for mass-producing circuit boards by carrying out board-to-board work on a board on which printed wiring has been applied is widespread. 2. Description of the Related Art Board-related working devices that perform board-related work include a component mounting device that performs component mounting work. A tape feeder that supplies components using a carrier tape is a representative example of a component supply device provided in a component mounting apparatus. In recent years, techniques have been developed for automatically exchanging tape feeders or automatically exchanging tape reels on which carrier tapes are wound in order to save labor for parts supply. Patent Documents 1 and 2 disclose technical examples relating to this type of exchange device.

Patent Document 1 discloses a suction work area in which a plurality of cassette-type feeders are set side by side, a feeder stock area for storing un-used and used cassette-type feeders, and a cassette-type feeder between the suction work area and the feeder stock area. A cassette-type feeder replacement system for a component mounting apparatus is disclosed, which includes a replacement robot for replacement. According to this, it is possible to automate the replacement work of the cassette-type feeders, and to smoothly replace the cassette-type feeders between areas.

Further, in Patent Document 2, a unit storage that stores a plurality of component supply units, a component supply unit that is attached to a plurality of component mounting apparatuses, and a component supply unit that is stored in the unit storage are stored in the unit storage. A component mounting line is disclosed that includes a unit replacement device for replacement and a control device that controls the unit replacement device. According to this, even if the component supply unit is used in any component mounting apparatus, it can be carried in and out in the unit storehouse for replenishment and recovery, which improves usability.

WO2014/118995 WO2017/033268

By the way, in the technical examples of the exchanging devices of Patent Documents 1 and 2, exchanging elements (cassette type feeder, component supply unit) of the component mounting device are exchanged one by one. For example, in Japanese Unexamined Patent Application Publication No. 2002-100001, a cassette feeder whose parts have been consumed by the mounting work is collected from the suction work area, transferred and stored in the feeder stock area, and then a new cassette feeder is pulled out from the feeder stock area. , is transferred and set in the adsorption work area. During the replacement operation, the mounting operation is interrupted, resulting in non-productive time during which the board cannot be produced.

Moreover, in many cases of setup change work for changing the type of board to be produced, it is necessary to replace a plurality of replacement elements of the component mounting apparatus, which tends to prolong non-production time. There is a strong demand to reduce such non-productive time and improve substrate production efficiency.

An object of the present specification is to provide a replacement device capable of shortening the non-production time of a component mounting device and improving the production efficiency of substrates.

In the present specification, a component mounting apparatus having a component supply section in which replacement elements including at least a component container for accommodating a plurality of components are arranged in an arrangement direction replaces the replacement element detachably mounted on the component supply section. an arrangement-direction moving section provided to be movable in the arrangement direction with respect to the component mounting device; a plurality of attachment/detachment direction movement portions provided in the arrangement direction movement portion so as to be adjacent to each other in the arrangement direction; a holding portion capable of holding a replacement element; an arrangement direction driving device for moving the arrangement direction moving portion in the arrangement direction; and an attachment/detachment direction driving device for moving the plurality of attachment/detachment direction moving portions independently of each other and a switching device.

The present specification also provides a component mounting apparatus having a component supply section in which replacement elements including at least a component container for accommodating a plurality of components are arranged in an arrangement direction at a predetermined pitch or at a pitch that is an integral multiple of the predetermined pitch. A replacement device for replacing the replacement element detachably mounted on the component supply unit, comprising: an arrangement direction moving unit provided movably in the arrangement direction with respect to the component mounting device; and the arrangement direction movement. an attachment/detachment direction moving portion provided in the arrangement direction movement portion so as to be movable in the attachment/detachment direction of the replacement element with respect to the portion; a plurality of holding parts which are provided in the attachment/detachment direction moving part while facing the same direction and can hold the replacement element; an arrangement direction driving device for moving the arrangement direction movement part in the arrangement direction; An attachment/detachment direction driving device for moving an attachment/detachment direction moving part in the attachment/detachment direction is disclosed.

Since the exchange device disclosed herein includes multiple holders, it can handle multiple exchange elements at the same time. Therefore, compared with the conventional configuration having one holding portion, the non-productive time required for replacement of the replacement element is shortened, the ratio of the production time of the component mounting apparatus is increased, and the substrate production efficiency is improved.

It is a perspective view showing a configuration example of a component mounting system to which the replacement device of the embodiment is applied. FIG. 10 is a side view of the tape feeder corresponding to the replacement element; FIG. 4 is a side view showing the configuration around the lock section of the tape feeder and the configuration inside the attachment/detachment direction moving section; 4 is a perspective view showing the internal configuration of the replacement part; FIG. It is the partial expansion perspective view which arranged and enlarged the vicinity of the holding surface of two attachment/detachment direction moving parts. FIG. 4 is a plan view schematically showing how to hold a standard tape feeder and a large tape feeder; FIG. 4 is a plan view schematically showing a method of holding a super-sized tape feeder; FIG. 10 is a side view of the attachment/detachment direction moving part showing a holding state in which the holding part and the releasing part are operated; FIG. 10 is a perspective view showing a state in which the replacement section accommodates the tape feeder; FIG. 10 is a plan view of the replacement part schematically showing a state immediately before starting the recovery operation in the procedure example of the replacement operation; FIG. 10 is a plan view of the replacement part schematically showing a state after the recovery operation is completed; FIG. 10 is a plan view of the replacement part schematically showing a state immediately before starting the mounting operation; FIG. 10 is a plan view of the replacement part schematically showing a state in which the mounting operation is finished; FIG. 2 is a diagram conceptually showing a first application example of a switching device that is a simplified version of the switching device of the embodiment; FIG. 10 is a diagram conceptually showing a second application example exchange device that is a simplified version of the exchange device of the embodiment;

1. Configuration of Component Mounting System 9 to which Exchanging Device 1 of Embodiment is Applied First, a configuration example of a component mounting system 9 to which the exchanging device 1 of the embodiment is applied will be described. FIG. 1 is a perspective view showing a configuration example of a component mounting system 9 to which the exchanging device 1 of the embodiment is applied. As shown in FIG. 1, the front, rear, left, and right sides of the component mounting system 9 are defined for convenience. The component mounting system 9 is configured by arranging a plurality of board-facing working devices in a horizontal direction. That is, a solder printer 91, a print inspection device 92, a first component mounting device 93, a second component mounting device 94, a third component mounting device 95, an unillustrated board appearance inspection device, and an unillustrated reflow device are located on the left side. are arranged from to the right.

Each board-related work device performs a predetermined work on a board, that is, a board-related work. Specifically, the solder printing device 91 prints paste solder on the board in a predetermined pattern shape. The print inspection device 92 takes an image of the solder print state of the board and inspects it. A first component mounting device 93, a second component mounting device 94, and a third component mounting device 95 pick up components from the component supply unit 9A and mount them on the solder of the board. A board appearance inspection apparatus takes an image of a component mounted on a board and inspects the appearance state thereof. Reflow equipment ensures soldering of components by heating and cooling the solder. The board-related work is not limited to the above-described work contents, and includes various accompanying works. For example, work for loading and unloading boards, positioning work, and confirmation work for grasping the positions and orientations of boards and components by imaging them are included in board-related work.

The first component mounting device 93, the second component mounting device 94, and the third component mounting device 95 have the same structure. The component mounting devices (93, 94, 95) have a component supply section 9A, a spare feeder storage section 9B, a substrate transfer device not visible in FIG. 1, and a component transfer device.

The component supply unit 9A is arranged at approximately the middle height on the front side of the machine base 99 . The component supply section 9A has a plurality of slots extending in the front-rear direction and formed parallel to each other at a predetermined pitch Ps (see FIGS. 5 to 7). A tape feeder 8 is inserted into each slot of the component supply section 9A. That is, the plurality of tape feeders 8 are arranged side by side in the horizontal direction of FIG.

The tape feeder 8 is a component supply device detachably mounted on the component supply section 9A, and corresponds to a replacement element. 1 is the arrangement direction of the replacement elements (hereinafter simply referred to as the arrangement direction), and the front-rear direction in FIG. 1 is the attachment/detachment direction of the replacement elements (hereinafter simply referred to as the attachment/detachment direction). The tape feeder 8 is used interchangeably with the first component mounting device 93 , the second component mounting device 94 and the third component mounting device 95 .

The spare feeder storage section 9B is arranged below the component supply section 9A on the front side of the machine base 99 . The spare feeder storage section 9B also has a plurality of slots extending in the front-rear direction and formed parallel to each other at a predetermined pitch Ps. Spare tape feeders 8 ready for use and used tape feeders 8 are arranged and temporarily stored in the slots of the spare feeder storage unit 9B. The substrate transport device loads, positions, and unloads substrates. The component transfer device picks up a component from the component supply section 9A using a component mounting tool such as a suction nozzle, and mounts it on the board.

Further, the component mounting system 9 is provided with a feeder storage device 96, a line management device 97, and the exchange device 1 of the embodiment. The feeder storage device 96 is arranged adjacent to the left side of the solder printing device 91 and at the same height as the component supply section 9A of the component mounting devices (93, 94, 95). The feeder storage device 96 also has a plurality of slots extending in the longitudinal direction and formed parallel to each other at a predetermined pitch Ps. Also in the slots of the feeder storage device 96, the tape feeders 8 that are ready for use and the tape feeders 8 that have finished being used are arranged and stored.

A line manager 97 is located adjacent to the left side of the feeder storage device 96 . The line management device 97 is connected for communication with a plurality of work devices for board. The line management device 97 manages job data describing the work content of the board-related work that differs for each type of board. The line management device 97 sends job data to a plurality of board-related work devices based on the production plan. The line management device 97 also monitors the operational status of the plurality of board-related work devices.

2. Structure of Tape Feeder 8 Next, the structure of the tape feeder 8 will be described. FIG. 2 is a side view of the tape feeder 8 corresponding to the replacement element. The tape feeder 8 is configured to be thin in the width direction by assembling various members to a frame 81 including side plates. The tape feeder 8 includes a frame body 81, a reel housing frame 82, a housing plate 83, an opening/closing plate 84, a tape feeding portion 85, a component feeding position 86, a feeder control portion 87, a ridge 88, an upper positioning pin 89, and a lower positioning pin. 8A, a connector 8B, and a lock portion 8C.

The reel housing frame 82 is a plurality of frame members forming a large circular internal space approximately in the center of the frame body 81 . The reel housing frame 82 rotatably houses the tape reel TR in its internal space. A storage plate 83 is attached to the lower portion of the reel storage frame 82 . The distance between the housing plate 83 and the side plate of the frame 81 is set slightly larger than the thickness of the tape reel TR. The housing plate 83 prevents the tape reel TR from coming off.

An opening/closing plate 84 is attached above the intermediate height of the reel housing frame 82 . The distance between the opening/closing plate 84 and the side plate of the frame 81 is also set slightly larger than the thickness of the tape reel TR. In addition, the opening and closing plate 84 is supported by the frame body 81 at two front and rear portions 841 on the upper portion thereof so that the opening and closing plate 84 opens upward. By opening the opening/closing plate 84, the tape reel TR can be replaced. A carrier tape containing a plurality of components is wound around the tape reel TR. The tape reel TR corresponds to a component container that stores a plurality of components.

The tape feeder 85 is arranged in the upper front portion of the frame 81 . The tape feeding section 85 draws out the carrier tape from the tape reel TR and feeds it to a component feeding position 86 provided on the front portion of the upper surface of the frame 81 . The tape feeding section 85 is composed of a sprocket having teeth that fit into the feeding holes of the carrier tape, a motor for rotating the sprocket, and the like.

The feeder control section 87 is arranged at the lower rear portion of the frame 81 . The feeder control section 87 controls the tape feeding section 85 and monitors the state of the locking section 8C. The feeder control unit 87 is connected for communication with the controller on the main body side of the component mounting apparatus (93, 94, 95) via the connector 8B.

The ridge 88 is provided on the bottom surface of the frame 81 . The ridge 88 is adapted to be inserted into any slot of the component supply section 9A, spare feeder storage section 9B, and feeder storage device 96. As shown in FIG. The ridge 88 is also adapted to be inserted into a slot 314 of the case 31 of the replacement unit 3 of the replacement device 1, which will be described later. As a result, the projection 88 of the tape feeder 8 is guided by the slot 314 at the time of replacement, and the tape feeder 8 is transferred from the replacement device 1 to the component supply section 9A or the like, or transferred in the opposite direction.

The upper positioning pin 89 and the lower positioning pin 8A are provided on the upper part of the front surface of the frame 81 so as to be vertically separated from each other. The upper positioning pin 89 and the lower positioning pin 8A are fitted into the positioning holes of the component supply section 9A to position the tape feeder 8. As shown in FIG. The connector 8B is arranged between the upper positioning pin 89 and the lower positioning pin 8A. The connector 8B is responsible for power supply to the tape feeder 8 and communication connection. When the tape feeder 8 is positioned, the connector 8B automatically fits into the receiving side connector of the component supply section 9A.

The lock portion 8C is arranged at the rear upper portion of the frame 81. As shown in FIG. FIG. 3 is a side view showing the configuration around the lock portion 8C of the tape feeder 8 and the internal configuration of the attachment/detachment direction moving portion 32 (described later) of the exchange device 1. As shown in FIG. The lock portion 8C includes a lock pin 8D, a lock spring 8E, a lock operation member 8F, a lock sensor 8L, and the like. The lock pin 8D is a tubular member and is held by the frame 81 so as to be vertically movable. The lock spring 8E is formed in a coil shape and arranged inside the lock pin 8D. The lock spring 8E has one end coupled to the frame 81 and the other end coupled to the lock pin 8D.

The lock spring 8E urges the lock pin 8D upward. In the tape feeder 8 provided in the component supply section 9A, the lock pin 8D raised by the bias projects from the upper surface of the frame 81 and fits into the lock hole 9H of the component supply section 9A. As a result, the lock portion 8C is brought into a locked state, preventing the tape feeder 8 from coming off or rattling.

The lock operation member 8F is a Y-shaped member having a swing fulcrum 8G. The swing fulcrum 8G is swingably supported by the frame 81 . A working arm 8H extending forward from the swing fulcrum 8G is locked to the lower end of the lock pin 8D. A release arm 8J extending upward from the swing fulcrum 8G is pushed forward by a direct action member 61, which will be described later. A manual arm 8K extending rearward from the swing fulcrum 8G protrudes from the rear surface of the frame 81. As shown in FIG. The manual arm 8K is pushed upward by the operator's operation.

When the release arm 8J or the manual arm 8K is pushed, the lock operation member 8F swings clockwise in FIG. 3 around the swing fulcrum 8G. At this time, the action arm 8H lowers the lock pin 8D against the lock spring 8E. Then, the lock pin 8D is pulled out from the lock hole 9H. As a result, the lock portion 8C shifts from the locked state to the unlocked state (see FIG. 8). Also, the tape feeder 8 is in a state in which it can be pulled out from the slot.

The lock sensor 8L detects the state of the lock portion 8C, that is, whether it is locked or unlocked. The lock sensor 8L outputs the detection result to the feeder control section 87 via the output cable 8M. In the tape feeder 8 installed in the component supply section 9A, the feeder control section 87 does not advance the component supply operation when the lock section 8C is in the unlocked state. The reason for this is that the tape feeder 8 is determined not to be in a good installation posture.

Further, as shown in FIG. 3, a holding plate 8N is vertically provided on the rear side of the lock portion 8C. The holding plate 8N is a part held by the holding portion 5. As shown in FIG. The holding plate 8N has a holding hole 8P in the center. The holding hole 8P is positioned at the same height (predetermined height) as the connector 8B. When viewed from the rear, the release arm 8J of the lock operation member 8F is positioned on the extension line of the holding hole 8P.

A plurality of types of tape feeders 8 having different width dimensions in the arrangement direction are prepared to correspond to a plurality of types of thicknesses of the tape reels TR. A standard tape feeder 8X has a width dimension equal to or smaller than a predetermined pitch Ps, and is arranged side by side in adjacent slots. In other words, the standard tape feeders 8X are arranged in the arrangement direction at a predetermined pitch Ps (see FIG. 6).

A large tape feeder 8Y whose width exceeds the predetermined pitch Ps and is equal to or less than twice the predetermined pitch Ps is installed occupying two slots. In other words, the large tape feeders 8Y are arranged in the arrangement direction at a pitch twice as large as the predetermined pitch Ps (see FIG. 6). Furthermore, a super-sized tape feeder 8Z having a width exceeding twice the predetermined pitch Ps is installed occupying three or more slots. In other words, the extra-large tape feeders 8Z are arranged in the arrangement direction at a pitch of three times or more the predetermined pitch Ps (see FIG. 7).

3. Configuration of the Exchange Device 1 of the Embodiment The explanation of the exchange device 1 of the embodiment will now be given. The exchange device 1 automatically exchanges the tape feeders 8 . Specifically, the exchanging device 1 exchanges the tape feeder 8 between the component supply unit 9A of the component mounting devices (93, 94, 95) and the spare feeder storage unit 9B. Further, the exchanging device 1 moves between the component mounting devices (93, 94, 95) and the feeder storage device 96, conveys the tape feeder 8, and exchanges it.

As shown in FIG. 1 , the exchanging device 1 is composed of an array-direction moving unit 2 , an array-direction driving device 20 , an exchanging unit 3 , and various components provided inside the exchanging unit 3 . The arrangement direction moving part 2 is provided so as to be movable in the arrangement direction with respect to the component mounting devices (93, 94, 95). The arrangement direction moving part 2 is a vertically long box-shaped member with an open front side. The arrangement direction driving device 20 moves the arrangement direction moving part 2 in the arrangement direction. The array direction driving device 20 is composed of a track portion provided on the non-moving side, an engaging portion provided on the moving side and movably engaged with the track portion, and a drive source for generating power for movement. be done.

The middle rail 21 and the lower rail 22 corresponding to the track section are provided on the rear surface of the base 99 of the plurality of board-working devices and the rear surface of the feeder storage device 96, respectively. The middle rail 21 and the lower rail 22 extend in the arrangement direction. The height position of the middle rail 21 is unified between the part supply section 9A and the spare feeder storage section 9B. The height position of the lower rail 22 is unified under the spare feeder storage section 9B. As a result, the plurality of middle rails 21 and the plurality of lower rails 22 form two parallel track sections extending from the feeder storage device 96 to the third component mounting device 95 .

The middle running portion 23 and the lower running portion 24 corresponding to the engaging portions are arranged on the left and right sides of the front side of the arrangement direction moving portion 2, respectively. The middle running portion 23 engages the middle rail 21 so as to be able to run, and the lower running portion 24 engages the lower rail 22 so as to be able to run. The middle stage traveling section 23 further includes a drive source that generates power for traveling. As a result, the arrangement-direction moving unit 2 is mounted on the middle rail 21 and the lower rail 22, and travels and moves in the arrangement direction.

Further, the arrangement direction moving section 2 is provided with a non-contact power receiving section 25 at a height position between the middle stage running section 23 and the lower stage running section 24 that does not hinder the replacement of the tape feeder 8 . The non-contact power receiving unit 25 non-contactly receives electric power from non-contact power transmitting units provided at corresponding heights of the plurality of work devices for board.

In addition, the arrangement direction moving section 2 has the up-and-down driving section 26 and the replacement section 3 inside the box shape. The elevation drive unit 26 drives the replacement unit 3 up and down from the height of the component supply unit 9A to the height of the spare feeder storage unit 9B. A ball screw feed mechanism can be exemplified as the elevation driving unit 26, but is not limited to this. FIG. 4 is a perspective view showing the internal configuration of the replacement unit 3. As shown in FIG. In FIG. 4, side plates and the like on the front side of the case 31 are omitted.

The replacement unit 3 is composed of a case 31 , two attachment/detachment direction moving portions 32 , and two attachment/detachment direction driving devices 4 . The case 31 has an opening 311 on the front side through which four standard tape feeders 8X arranged side by side can be taken in and out in a row. Case 31 also has an internal space that can accommodate four standard tape feeders 8X. Four slots 314 formed in parallel with each other at a predetermined pitch Ps are formed in the bottom plate 313 of the case 31 . Furthermore, a guide roller 315 is arranged in front of each slot 314 of the bottom plate 313 . As a result, the tape feeder 8 is taken in and out through the opening 311 and the guide roller 315 while the ridges 88 are guided by the slots 314 .

The two attachment/detachment direction moving parts 32 are provided so as to be movable in the attachment/detachment direction independently of each other with respect to the arrangement direction moving part 2 . The two attachment/detachment direction moving parts 32 are provided inside the case 31 and arranged separately in the arrangement direction. The attaching/detaching direction moving part 32 has a holding surface 33 on the upper front side and a contact surface 34 on the lower front side. The attachment/detachment direction moving part 32 holds the holding plate 8</b>N on the upper rear surface of the tape feeder 8 with the holding surface 33 . At this time, the contact surface 34 contacts the lower rear surface of the tape feeder 8 . It is also possible to provide a connector on the contact surface 34 and connect it to the feeder control section 87 of the tape feeder 8 .

A flexible power cable 35 is laid over the attachment/detachment direction moving portion 32 in order to supply power to the attachment/detachment direction moving portion 32 that moves. The power cable 35 is connected to a power terminal 36 on the top of the attaching/detaching direction moving portion 32 .

The attachment/detachment direction driving device 4 moves the two attachment/detachment direction moving parts 32 independently of each other in the attachment/detachment direction. The attachment/detachment direction driving device 4 is provided for each attachment/detachment direction moving portion 32 . The attachment/detachment direction drive device 4 includes an upper rail 41, a lower rail 42, a drive motor 43, a fixed pulley 44, a drive belt 45, and the like. FIG. 3 shows the attachment/detachment direction driving device 4 that drives the attachment/detachment direction moving portion 32 on the back side of the page.

Upper rail 41 and lower rail 42 are provided on side plate 312 of case 31 . The upper rail 41 and the lower rail 42 are vertically separated from each other, parallel to each other, and extend in the attachment/detachment direction. The drive motor 43 is arranged in the rear part inside the case 31 . A speed reduction mechanism is attached to the output shaft protruding from the drive motor 43 toward the back side of the drawing. The fixed pulley 44 is arranged in front of the side plate 312 . An annular drive belt 45 is horizontally stretched between the output portion of the reduction mechanism and the fixed pulley 44, and is rotatable.

The attachment/detachment direction moving part 32 is mounted on the upper rail 41 and the lower rail 42 . The attachment/detachment direction moving part 32 is driven by the rotation of the drive belt 45 and moves in the attachment/detachment direction in the internal space of the replacement part 3 . The attachment/detachment direction driving device 4 moves the tape feeder 8 and the attachment/detachment direction moving section 32 held by the holding surface 33 together. Of course, the attachment/detachment direction driving device 4 can also move only the attachment/detachment direction moving part 32 .

Regarding the attachment/detachment direction driving device 4 that drives the attachment/detachment direction moving portion 32 on the front side of the paper, the structure itself is the same as described above, but the arrangement positions of the members are different. That is, the drive motor 47 is provided at a position higher than that of the drive motor 43 in the opposite direction. Further, as shown in FIG. 9, the fixed pulley 48 and the drive belt 49 provided on the side plate (not shown) on the front side of the paper are also arranged at corresponding high positions. By thus arranging the two attachment/detachment direction driving devices 4 at different heights in opposite directions, the thickness of the exchanging portion 3 and the arrangement direction moving portion 2 can be reduced.

Further description of the internal configuration of the attachment/detachment direction moving section 32 will be continued. Two pairs of combinations of the holding portion 5 , the release portion 6 , the common drive portion 7 and the control portion 79 are provided for each of the two attachment/detachment direction moving portions 32 . These two sets have the same configuration, are arranged side by side in the arrangement direction, and operate independently of each other. In the following, one set of configurations will be described in detail. The holding portion 5, the releasing portion 6, the common drive portion 7, and the control portion 79 are attached to a main body portion 37 that is a part of the attachment/detachment direction moving portion 32 and extends in the vertical direction.

The common driving section 7 operates the holding section 5 and the releasing section 6 . As shown in FIG. 3, the common driving section 7 is composed of a stepping motor 71, a first gear 73, a second gear 76, and a swinging member 77. As shown in FIG. The stepping motor 71 is fixed near the bottom of the body portion 37 . The stepping motor 71 switches between forward rotation and reverse rotation according to a command from the control unit 79, and rotates by the commanded amount of rotation. An output gear 72 having a small number of teeth is provided on the output shaft of the stepping motor 71 .

The first gear 73 is arranged above the stepping motor 71 and rotatably supported by the body portion 37 . The first gear 73 is configured by integrally and coaxially overlapping a large gear 74 having a relatively large number of teeth and a small gear 75 having a relatively small number of teeth. In FIG. 4, the small gear 75 is behind the large gear 74 and cannot be seen. A large gear 74 meshes with the output gear 72 .

The second gear 76 is arranged above the first gear 73 and is rotatably supported by the body portion 37 . The second gear 76 has more teeth than the pinion gear 75 and meshes with the pinion gear 75 . A rocking member 77 is provided near the top of the second gear 76 . The rocking member 77 has a rocking pin 78 outside the outer circumference of the second gear 76 . The output gear 72, the first gear 73, and the second gear 76 constitute a reduction mechanism. As a result, the forward and reverse rotations of the stepping motor 71 are converted into rocking movements of the rocking pin 78 in the attaching/detaching direction.

The release unit 6 can release the lock unit 8C that prevents the tape feeder 8 installed in the component supply unit 9A from being detached. The release unit 6 is composed of a direct action member 61, a manual lever 67, and the like. The direct action member 61 is a rod-shaped member that is long in the attachment/detachment direction. The direct action member 61 has a vertically elongated slot 62 at approximately the middle position in the length direction. A swing pin 78 is loosely fitted in the long hole 62 . Therefore, the swinging motion of the swinging pin 78 that draws an arc is converted into a rectilinear motion of the direct action member 61 in the attachment/detachment direction. Further, the direct action member 61 has a release operation portion 63 for releasing the lock portion 8C at its front end.

In addition, the direct action member 61 has an intermediate drive pin 64 on either side of the slot 62 . The two intermediate drive pins 64 are loosely fitted in elongated holes 53 of the slide plate 51, which will be described later. Thereby, the horizontal state of the direct action member 61 is maintained. Further, the direct action member 61 has indirect drive projections 65 on the upper and lower sides between the front intermediate drive pin 64 and the release operation part 63 respectively. The pair of upper and lower indirect drive projections 65 drives the chuck 55 of the holding portion 5, which will be described later.

A manual lever 67 is erected upward from the rear end of the direct action member 61 . The manual lever 67 is operated by an operator in the attachment/detachment direction, and enables manual operation of the direct action member 61 when the common drive unit 7 is out of order. A position marker 68 is provided below the manual lever 67 . A position marker 68 operates integrally with the direct motion member 61 to indicate the position of the direct motion member 61 . The body portion 37 is provided with a reference position sensor 6A and a holding position sensor 6B for detecting the position marker 68 .

FIG. 3 shows an initial state in which the holding portion 5 and the release portion 6 are not operating. The reference position sensor 6A detects the position marker 68 at the rear end position of the direct action member 61 corresponding to the initial state. The holding position sensor 6B detects the position marker 68 at the front end position of the direct action member 61 corresponding to the holding state when the holding portion 5 and the releasing portion 6 are operated (see FIG. 5). The reference position sensor 6A and the holding position sensor 6B output detection results to the control section 79. FIG.

The holding unit 5 can hold the tape feeder 8 to be replaced. The two holding parts 5 share the holding surface 33 . Each of the holding portions 5 is composed of a slide plate 51, a pair of upper and lower chucks 55, and the like. The slide plate 51 is a substantially rectangular plate-shaped member, and is provided with a trapezoidal notch hole. The slide plate 51 is biased forward by a biasing spring (not shown). A rocking member 77 rocks in the cutout hole of the slide plate 51 . The slide plate 51 is provided with four elongated slide holes 52 extending in the attachment/detachment direction. A support pin 38 erected on the body portion 37 is loosely fitted in each of the slide holes 52 . Further, the slide plate 51 is provided with two elongated holes 53 elongated in the attachment/detachment direction. An intermediate drive pin 64 is loosely fitted in each of the elongated holes 53 .

The play dimension of the long hole 53 in the attachment/detachment direction is larger than that of the slide hole 52 in the attachment/detachment direction. When the play dimension of the slide hole 52 in the attachment/detachment direction and the play dimension of the elongated hole 53 in the attachment/detachment direction are added, the direct motion member 61 moves in the attachment/detachment direction to match the predetermined motion stroke length. In the initial state shown in FIG. 3, the intermediate drive pin 64 is in contact with the rear edge of the elongated hole 53 and prevents the forwardly biased slide plate 51 from moving forward. At this time, the slide plate 51 is in the retracted position where the support pin 38 is in contact with the front edge of the slide hole 52 .

Chuck support seats 54 are provided at two positions near the front of the slide plate 51 , which are vertically symmetrical with respect to the direct action member 61 . A pair of upper and lower chucks 55 are swingably supported on the chuck support seat 54 . The pair of upper and lower chucks 55 have parallel portions on the rear side that are generally parallel, front sides of the parallel portions that approach each other, and front sides of the approach portions that bend and separate from each other. The chuck 55 is supported around the boundary between the parallel portion and the approach portion.

The indirect drive projections 65 of the direct action member 61 slide on the facing surfaces of the pair of upper and lower chucks 55 . In FIG. 3 , the indirect drive projection 65 is in sliding contact with the tail of the parallel portion of the chuck 55 . At this time, the pair of upper and lower chucks 55 are in a closed state in which the approaching portions are in direct contact with the operating member 61 . The bent portions of the pair of upper and lower chucks 55 are closed smaller than the holding hole 8P of the tape feeder 8 while sandwiching the release operation portion 63 of the direct action member 61 .

The control section 79 is arranged below the body section 37 . The controller 79 controls the direction and amount of rotation of the stepping motor 71 based on the detection results of the reference position sensor 6A and the holding position sensor 6B. Since the amount of rotation of the stepping motor 71 can be controlled, the reference position sensor 6A and holding position sensor 6B are not essential. However, when the power supply of the exchanging device 1 is stopped or when the manual lever 67 is operated, the position of the direct action member 61 may become unknown. Therefore, it is preferable to provide at least one of the reference position sensor 6A and the holding position sensor 6B.

Next, FIG. 5 is a partially enlarged perspective view in which the vicinity of the holding surfaces 33 of the two attachment/detachment direction moving parts 32 are arranged side by side and enlarged. FIG. 5 shows a holding state in which the holding portion 5 and the releasing portion 6 are operated. As will be described in detail later, the pair of upper and lower chucks 55 of the holding portion 5 hold the tape feeder 8 by protruding from the holding surface 33 and opening. A release operation portion 63 at the tip of the direct action member 61 of the release portion 6 protrudes from the holding surface 33 and operates to release the lock portion 8C of the tape feeder 8 .

As illustrated, the two attachment/detachment direction moving parts 32 are provided adjacent to each other in the arrangement direction at a pitch three times the predetermined pitch Ps. The two attachment/detachment direction moving parts 32 may be provided adjacent to each other at a pitch twice the predetermined pitch Ps, or at a pitch equal to or greater than four times the predetermined pitch Ps. Also, in each attachment/detachment direction moving portion 32, two holding portions 5 are provided adjacent to each other in the arrangement direction at a predetermined pitch Ps. Note that the two holding portions 5 may be provided adjacent to each other at a pitch that is an integral multiple of two or more times the predetermined pitch Ps.

4. Holding Operation of Exchange Device 1 of Embodiment Here, among the operations of the exchange device 1 of the embodiment, differences in holding methods of a plurality of types of tape feeders (8X, 8Y, 8Z) having different width dimensions will be described. FIG. 6 is a plan view schematically showing how to hold the standard tape feeder 8X and the large tape feeder 8Y. As shown in the attachment/detachment direction moving portion 32 on the upper side of the paper surface of FIG. 6, each holding portion 5 holds a standard tape feeder 8X.

Also, as shown on the lower side of the paper surface of FIG. 6, the large tape feeder 8Y faces the two holding portions (5Y, 5) in the arrangement direction. Therefore, one holding portion 5Y holds the large tape feeder 8Y, and the other holding portion 5 maintains an initial state in which it does not protrude from the holding surface 33. As shown in FIG. According to this, when holding the large-sized tape feeder 8Y, other holding parts 5 do not get in the way.

Next, FIG. 7 is a plan view schematically showing a holding method of the extra-large tape feeder 8Z. As shown, the extra-large tape feeder 8Z faces two attachment/detachment direction moving parts (32Z, 32) in the arrangement direction. Therefore, one holding portion 5Z of one attachment/detachment direction moving portion 32Z on the upper side of the paper holds the extra-large tape feeder 8Z, and the other holding portions 5 maintain an initial state in which they do not protrude from the holding surface 33. FIG. In addition, in another attachment/detachment direction moving portion 32 on the lower side of the paper, the two holding portions 5 are maintained in the initial state. Further, another attachment/detachment direction moving portion 32 is maintained behind the one attachment/detachment direction moving portion 32Z in the attachment/detachment direction by the attachment/detachment direction driving device 4 . Normally, the separate attachment/detachment direction moving part 32 stays at the rear end position in the attachment/detachment direction. According to this, when holding the extra-large tape feeder 8Z, the other holding part 5 and the separate attachment/detachment direction moving part 32 do not interfere. As described above, the holding unit 5 can hold the tape feeders (8X, 8Y, 8Z) regardless of their size.

Next, the holding operation for holding the tape feeder 8 by the exchanging device 1 of the embodiment will be described in detail. The following description is common regardless of whether the tape feeder 8 to be held is located in the feeder storage device 96, the component supply section 9A, or the spare feeder storage section 9B. First, the arranging direction driving device 20 moves the arranging direction moving part 2 to the front of the tape feeder 8 to be held. Next, the elevation driving section 26 adjusts the height of the replacement section 3 to the tape feeder 8 . Next, the attachment/detachment direction driving device 4 advances the attachment/detachment direction moving portion 32 facing the tape feeder 8 in the attachment/detachment direction. The attachment/detachment direction moving part 32 advances until the holding surface 33 comes into contact with the holding plate 8N of the tape feeder 8 . At this point, the state shown in FIG. 3 is reached.

As shown in FIG. 3, the holding portion 5 and the release portion 6 do not protrude from the holding surface 33 in the initial non-operating state. Therefore, even if the arranging direction moving portion 2 slightly moves in the arranging direction to finely adjust the position of the attaching/detaching direction moving portion 32, the tape feeder 8 will not be damaged. If the direct action member 61 and the chuck 55 were to protrude from the holding surface 33, it would be necessary to once retract the attachment/detachment direction moving part 32 before the arrangement direction moving part 2 moves, which would make the operation complicated and non-trivial. become efficient.

Next, the controller 79 starts the stepping motor 71 . As a result, the second gear 76 and the swinging member 77 start to rotate clockwise in FIG. 3, and the direct action member 61 starts advancing in the attachment/detachment direction. As the intermediate drive pin 64 of the direct action member 61 advances, the slide plate 51 is also urged to start advancing. After that, the slide plate 51 moves forward to the forward position where the support pin 38 contacts the rear edge of the slide hole 52 . As a result, both the direct action member 61 and the chuck 55 in the closed state protrude from the holding surface 33 and enter the holding hole 8P.

When the direct action member 61 advances further after the slide plate 51 has stopped at the advanced position, the indirect drive projection 65 approaches the approaching portion of the chuck 55 . Thereafter, the indirect drive projection 65 pushes apart the approaching portions of the pair of upper and lower chucks 55 to open the chucks 55 . Then, as shown in FIG. 8, the pair of upper and lower chucks 55 are in a state in which the bent portions are opened to grip the inner surface of the holding plate 8N. FIG. 8 is a side view of the attachment/detachment direction moving portion 32 showing the holding state in which the holding portion 5 and the releasing portion 6 are operated. The attachment/detachment direction moving section 32 holds the tape feeder 8 using a pair of upper and lower chucks 55 of the holding section 5 . It should be noted that there may be some looseness between the chuck 55 and the holding plate 8N in the held state.

When the direct action member 61 completes the forward movement of the predetermined action stroke length, the release operation part 63 pushes the release arm 8J forward. As a result, the lock portion 8C shifts to the unlocked state. Next, the attachment/detachment direction driving device 4 retracts the attachment/detachment direction moving section 32 holding the tape feeder 8 . At this time, the tape feeder 8 slides while the ridges 88 on the bottom face are guided by the slots 314 of the bottom plate 313 , and is housed in the internal space of the replacement part 3 . FIG. 9 is a perspective view showing a state in which the replacement section 3 accommodates the tape feeder 8. As shown in FIG. In FIG. 9, the case 31 that constitutes the replacement unit 3 is omitted. As another form, the replacement section 3 may support the tape feeder 8 only with the holding section 5 without the slot 314 of the bottom plate 313 .

When the tape feeder 8 is accommodated, the attachment/detachment direction moving section 32 pulls out the tape feeder 8 horizontally in the attachment/detachment direction. The pulling force at this time acts on the tape feeder 8 from the chuck 55 . Since the chuck 55 is at the same height as the connector 8B, the connector 8B is pulled straight out. Therefore, the risk of damage to the connector 8B is reduced. Similarly, the upper positioning pin 89 and the lower positioning pin 8A are less likely to be damaged because the pull-out force in the oblique direction hardly acts on them. In addition, less pull-out force is required.

After that, the exchange section 3 is driven to the front of any one of the feeder storage device 96, the component supply section 9A, and the spare feeder storage section 9B. The exchange unit 3 can store or equip the stored tape feeder 8 in any slot. The storage operation and loading operation of the tape feeder 8 are carried out in substantially the reverse order of the holding operation described above.

5. Example of procedure for replacement operation of replacement device 1 of embodiment Next, an example of procedure for replacement operation when the replacement device 1 of the embodiment replaces the tape feeder 8 of the component supply section 9A will be described. Hereinafter, when replacing the standard first tape feeder 8X1 and third tape feeder 8X3 equipped adjacent to the component supply section 9A with the prepared second tape feeder 8X2 and fourth tape feeder 8X4 A procedure example is explained.

FIG. 10 is a plan view of the exchanging section 3 schematically showing a state immediately before starting the recovering operation in the procedure example of the exchanging operation. FIG. 11 is a plan view of the replacement unit 3 schematically showing a state after the recovery operation is completed. FIG. 12 is a plan view of the exchange unit 3 schematically showing a state immediately before starting the mounting operation. FIG. 13 is a plan view of the replacement unit 3 schematically showing a state in which the mounting operation is completed. 10 to 13, the second tape feeder 8X2 and the fourth tape feeder 8X4 are hatched for convenience.

The exchanging device 1 first puts the two holding parts 5 of one attachment/detachment direction moving part 32 (on the upper side of the paper surface of FIG. 10) in a state where the tape feeder 8 is not held. In the exchanging device 1, the two holding portions 5 of another attachment/detachment direction moving portion 32 (on the lower side of the paper surface of FIG. 10) hold the second tape feeder 8X2 and the fourth tape feeder 8X4, and are housed in Next, the arranging direction driving device 20 and the up-and-down driving section 26 are operated to move one attachment/detachment direction moving section 32 of the exchanging section 3 to face the first tape feeder 8X1 and the third tape feeder 8X3 of the component supply section 9A. Let

Next, one attachment/detachment direction moving part 32 is driven by the attachment/detachment direction driving device 4 to move forward (see arrow M1 in FIG. 10). Next, in one attachment/detachment direction moving section 32, the common drive section 7 operates, and the two holding sections 5 hold the first tape feeder 8X1 and the third tape feeder 8X3, resulting in the state shown in FIG. . Next, one attachment/detachment direction moving part 32 is driven by the attachment/detachment direction driving device 4 to retreat (see arrow M2 in FIG. 11). Thereby, as shown in FIG. 11, the first tape feeder 8X1 and the third tape feeder 8X3 are collected and housed in the exchange section 3. As shown in FIG.

Next, the array direction moving unit 2 moves in the array direction by three times the predetermined pitch Ps (see arrow M3 in FIG. 12). Then, as shown in FIG. 12, another attachment/detachment direction moving part 32 faces the empty slot. Next, another attachment/detachment direction moving part 32 is driven by the attachment/detachment direction driving device 4 to move forward (see arrow M4 in FIG. 13) and enter the state shown in FIG. Next, the holding portion 5 of another attachment/detachment direction moving portion 32 releases the holding according to the operation of the common driving portion 7 in the opposite direction. Further, the release unit 6 brings the lock unit 8C into the locked state. Thereby, the second tape feeder 8X2 and the fourth tape feeder 8X4 are installed in the component supply section 9A. After that, another attachment/detachment direction moving part 32 is driven by the attachment/detachment direction driving device 4 to retreat, and the replacement operation is completed.

In this case, the first tape feeder 8X1 is recovered by one of the holding sections 5 of one attachment/detachment direction moving section 32, and the second tape feeder 8X2 is mounted on one of the holding sections 5 of another attachment/detachment direction moving section 32. Operation is also possible. Furthermore, a total of four holding units 5 can be used to collect four tape feeders 8X together and subsequently equip four tape feeders 8X together. The exchange device 1 can perform various other exchange operation methods.

Since the exchange device 1 of the embodiment has a plurality of holding units 5, it can handle a plurality of tape feeders (8, 8X, 8Y) at the same time. According to this, the replacement device 1 can efficiently perform the replacement work in the parts replenishment work when the parts run out in the middle of the mounting work, and the changeover work when changing the type of substrate to be produced. . Therefore, compared with the conventional configuration having one holding portion 5, the non-productive time required for replacing the tape feeders (8, 8X, 8Y) is shortened, and the production time of the component mounting devices (93, 94, 95) is shortened. The ratio is increased, and the substrate production efficiency is improved.

6. Applications and Modifications of the Embodiments The exchange device 1 may include three or more attachment/detachment direction moving units 32 . Further, three or more holding portions 5 may be provided in the attaching/detaching direction moving portion 32 . Furthermore, the number and arrangement pitch of the holding portions 5 may differ depending on the attachment/detachment direction moving portion 32 . Further, the arrangement pitch of the holding portions 5 does not have to be an integral multiple of the arrangement pitch Ps of the tape feeders 8 . Although the exchanging device 1 of the embodiment has four holders 5, it is also possible to reduce the number of holders 5 to two for simplification, as shown in FIGS. FIG. 14 is a diagram conceptually showing a switching device 11 of a first application example, which is a simplified version of the switching device 1 of the embodiment. In the exchange device 11 of the first application example, one holding portion 5 is provided for each of the two attachment/detachment direction moving portions 32 .

In the exchanging device 11 of the first application example, when exchanging the first tape feeder 8X1 equipped in the component supply unit 9A with the prepared second tape feeder, one attachment/detachment direction moving unit 32 is used for the first tape. The feeder 8X1 is recovered, and another attaching/detaching direction moving section 32 is equipped with the second tape feeder 8X2. Also, the exchange device 11 can collect two tape feeders 8X together or equip two tape feeders 8X together. Further, when replacing the large tape feeder 8Y, the holding portion 5 of one attachment/detachment direction moving portion 32 of the replacement device 11 holds the large tape feeder 8Y, and the other attachment/detachment direction moving portion 32 is used for the attachment/detachment. It is maintained on the rear side in the attachment/detachment direction of one attachment/detachment direction moving portion 32 by the directional drive device 4 .

Also, FIG. 15 is a diagram conceptually showing a switching device 12 of a second application, which is a simplified version of the switching device 1 of the embodiment. In the exchange device 12 of the second application example, two holders 5 are provided in one attaching/detaching direction moving portion 32 . The exchanging device 12 of the second application example recovers the first tape feeder 8X1 in one holding unit 5 and installs the second tape feeder 8X2 in another holding unit 5. In addition, two tape feeders 8X can be collected together or two tape feeders 8X can be equipped together. Furthermore, when replacing the large tape feeder 8Y, one holding section 5 of the replacement device 12 holds the large tape feeder 8Y, and the other holding sections 5 maintain the initial state.

Furthermore, instead of the chuck 55 that grips the tape feeder 8 in the holding portion 5, a hook that hooks and pulls out the tape feeder 8, or an electromagnet that attracts the tape feeder 8 by magnetic force may be used. Alternatively, the tape feeder 8 may be replaced only between the component supply section 9A and the feeder storage device 96 as a replacement device that does not include the lift drive section 26. FIG. Further, the tape feeder 8 may be configured so that the tape reel TR can be taken out rearward, and the replacement device (1, 11, 12) may replace only the tape reel TR as a replacement element. Various other applications and modifications are possible for this embodiment.

Reference Signs List 1, 11, 12: replacement device 2: arrangement direction moving unit 20: arrangement direction driving device 26: elevation driving unit 3: replacement unit 32, 32Y, 32Z: attachment/detachment direction movement unit 33: holding surface 4: attachment/detachment direction drive device 5 , 5Y, 5Z: holding part 51: slide plate 55: chuck 6: release part 61: direct action member 63: release operation part 64: intermediate drive pin 65: indirect drive projection 67: manual lever 6A: reference position sensor 6B: hold Position sensor 7: common drive unit 71: stepping motor 73: first gear 76: second gear 77: rocking member 79: control unit 8: tape feeder 8C: lock unit 8X: standard tape feeder 8X1 to 8X4: th 1st to 4th tape feeders 8Y: Large tape feeder 8Z: Extra large tape feeder 9: Component mounting system 93: First component mounting device 94: Second component mounting device 95: Third component mounting device 96: Feeder storage Apparatus 9A: Parts supply unit 9B: Spare feeder storage unit Ps: Predetermined pitch

Claims (4)

a component mounting apparatus having a component supply section in which replacement elements including at least a component container that stores a plurality of components are arranged in an arrangement direction at a predetermined pitch or at a pitch that is an integral multiple of the predetermined pitch ;
a replacement device that replaces the replacement element detachably mounted on the component supply unit;
The exchange device
an arrangement-direction moving unit provided to be movable in the arrangement direction with respect to the component mounting device;
a case provided in the arrangement direction moving part and having an internal space capable of accommodating a plurality of the replacement elements arranged in the arrangement direction;
The replacement elements include standard replacement elements whose width dimension in the arrangement direction is equal to or less than the predetermined pitch, and large replacement elements whose width dimension exceeds the predetermined pitch,
The exchange device is configured to exchange the standard exchange element and the large exchange element,
the replacement element is a tape reel;
The replacement device replaces the tape reel detachably mounted on a tape feeder that constitutes the component supply unit.
parts mounting system. The exchange device
When exchanging an equipment replacement element equipped in the parts supply section with a prepared preparation replacement element, the preparation replacement element is accommodated in the preparation internal space of the case, and the preparation replacement element is accommodated. Secure an internal space for collection that is not
after recovering the equipment replacement element from the component supply unit into the recovery internal space, moving the arrangement direction moving unit in the arrangement direction;
equipping the prepared replacement element in an array position where the outfitted replacement element was previously equipped;
The component mounting system according to claim 1. 3. The internal space of the case according to claim 1 , wherein a plurality of said replacement elements are accommodated in said arrangement direction at a predetermined pitch or at a pitch that is an integral multiple of said predetermined pitch. parts mounting system. The exchange device
a plurality of holding portions that can hold the replacement element and are provided in the arrangement direction moving portion so as to be independently movable in the attachment/detachment direction of the replacement element;
A component mounting system according to any one of claims 1 to 3.

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