JP2023070876A - Maintenance device and maintenance method - Google Patents

Abstract

To provide a maintenance device capable of determining whether or not a storage member in a cavity is clogged, and a maintenance method.SOLUTION: A maintenance device is applied to a bulk feeder, which includes a trajectory member and a cavity unit, and comprises a recognition section and a determination section. The trajectory member includes a transfer path for transferring a component between a reception region and a supply region. The cavity unit includes, in the supply region, a plurality of cavities in each of which one of components transferred from the reception region to the supply region should be stored by oscillating the trajectory member. Each time a supply operation for transferring a component from the reception region to the supply region is performed, the recognition section recognizes a posture of the storage member, which is stored in the cavity, in the cavity. Based on the posture of the storage member recognized by the recognition section regarding a plurality of times of continuous supply operations, the determination section determines whether or not the storage member in the cavity is clogged.SELECTED DRAWING: Figure 6

Description

This specification discloses a technology related to a maintenance device and a maintenance method.

In Patent Document 1, even though an attempt has been made to pick up a component from a cavity in which the component is normally accommodated, in the event of a picking error in which the component is not held, the component appears to be normally placed in the cavity. is housed in the cavity, but there are cases where the part is actually fitted in the cavity. Then, when the component is not collected, the determining unit described in Patent Document 1 determines that the cavity containing the component is defective, and records it in the cavity information.

Further, in Patent Document 1, in addition to a defective cavity as a cause of the picking error, when a component is dropped while the suction nozzle is being moved from the bulk feeder to the component camera, the suction nozzle malfunctions. It is described that it is assumed that such a case occurs. Therefore, the determination unit described in Patent Literature 1 can determine that the cavity is defective when, for example, a predetermined number of consecutive mounting errors occur in the picking operation of picking components from the same cavity.

WO2021/095221

Bulk feeders with cavity units with multiple cavities can result in stacks with parts stuck in the cavities. Also, there is a possibility that foreign matter remains in the cavity. In this way, the more clogging of the containing members in the cavities, the more the number of cavities capable of supplying components to the component mounting machine decreases, which may reduce the production efficiency of circuit board products.

In view of such circumstances, the present specification discloses a maintenance device and a maintenance method capable of determining whether or not the housing member is clogged in the cavity.

This specification discloses a maintenance device applied to a bulk feeder comprising a track member and a cavity unit. The maintenance device includes a recognition section and a determination section. The track member is provided between a receiving area for receiving the parts ejected from a parts case that stores the parts in bulk and supplied to the parts mounting machine and a supply area for picking up the parts for the parts mounting machine. A transport path along which the component is transported is provided. The cavity unit has a plurality of cavities in the supply area in which one of the components transported from the receiving area to the supply area is to be accommodated by vibrating the track member. The recognizing unit recognizes the posture of the accommodating member accommodated in the cavity in the cavity each time a supply operation of conveying the component from the receiving area to the supply area is performed. The determining unit determines whether or not the containing member is clogged in the cavity based on the orientation of the containing member recognized by the recognition unit with respect to the continuous supply operation a plurality of times.

This specification also discloses a maintenance method applied to a bulk feeder comprising a track member and a cavity unit. The maintenance method includes a recognition process and a determination process. The track member is provided between a receiving area for receiving the parts ejected from a parts case that stores the parts in bulk and supplied to the parts mounting machine and a supply area for picking up the parts for the parts mounting machine. A transport path along which the component is transported is provided. The cavity unit has a plurality of cavities in the supply area in which one of the components transported from the receiving area to the supply area is to be accommodated by vibrating the track member. The recognizing step recognizes the orientation of the housing member housed in the cavity in the cavity each time a supply operation for conveying the component from the receiving area to the supply area is performed. The determining step determines whether or not the containing member is clogged in the cavity based on the orientation of the containing member recognized by the recognizing step for a plurality of consecutive supply operations.

According to the maintenance device described above, since the recognition unit and the determination unit are provided, it is determined whether or not the containing member is clogged in the cavity based on the orientation of the containing member recognized by the recognition unit for a plurality of consecutive supply operations. can do. What has been described above regarding the maintenance device can be similarly applied to the maintenance method.

It is a top view which shows the structural example of a component mounting machine. It is a perspective view which shows an example of a bulk feeder. FIG. 3 is a side view schematically showing part of the bulk feeder of FIG. 2; FIG. 3 is a plan view seen in the direction of arrow IV in FIG. 2; It is a perspective view which shows an example of a conveyance path. 4 is a block diagram showing an example of control blocks of the maintenance device; FIG. 4 is a flow chart showing an example of a control procedure by a maintenance device; FIG. 4 is a plan view showing an example of a cavity unit supplied with components; FIG. 9 is a schematic diagram showing an example of a state in which components are housed in three cavities of FIG. 8; FIG. 10 is a schematic diagram showing an example of a first posture range and a second posture range assumed in the case where the accommodating member is a component normally supplied to a cavity that can be picked up by a component mounting machine; FIG. 10 is a schematic diagram showing an example of a first posture range and a second posture range assumed when clogging of a housing member occurs. FIG. 10 is a schematic diagram showing an example of a first posture change amount and a second posture change amount assumed in the case where the accommodation member is a component normally supplied to a cavity that can be picked up by a component mounting machine; FIG. 5 is a schematic diagram showing an example of a first posture change amount and a second posture change amount that are assumed when clogging of an accommodation member occurs. FIG. 5 is a schematic diagram showing an example of guidance for maintenance of the cavity unit;

1. Embodiment 1-1. Configuration Example of Component Mounting Machine 10 Bulk feeder 30 to which maintenance device 80 is applied supplies component 91 to component mounting machine 10 that mounts component 91 on substrate 90 .

As shown in FIG. 1 , the component mounting machine 10 of the embodiment includes a substrate conveying device 11 , a component supply device 12 , a component transfer device 13 , a component camera 14 , a substrate camera 15 and a control device 20 . The substrate conveying device 11 is configured by, for example, a belt conveyor, and conveys the substrate 90 in the conveying direction (X-axis direction). The substrate 90 is a circuit board on which electronic circuits, electric circuits, magnetic circuits, and the like are formed. The board transfer device 11 carries the board 90 into the component mounting machine 10 and positions the board 90 at a predetermined position inside the machine. After the mounting process by the component mounting machine 10 is completed, the board transfer device 11 carries the board 90 out of the component mounting machine 10 .

The component supply device 12 supplies components 91 . The component supply device 12 includes a plurality of feeders 12b provided along the transport direction (X-axis direction) of the substrate 90 . Each of the plurality of feeders 12b is detachably attached to the slot 12a. A tape feeder, a bulk feeder 30, or the like can be used as the feeder 12b. The tape feeder pitch-feeds the carrier tape containing the components 91 and supplies the components 91 at the supply position so that the components 91 can be picked up. The bulk feeder 30 feeds the components 91 ejected from the component case 70 that stores the components 91 in a bulk state (in which the postures of the components 91 are irregular) so that the components 91 can be collected.

In the embodiment, the bulk feeder 30 is installed in a predetermined slot 12a among the plurality of slots 12a of the component supply device 12 of the component mounting machine 10. As shown in FIG. The slot 12a equipped with the bulk feeder 30 is determined in the board product production plan. For example, the bulk feeder 30 is installed together with the slot 12a equipped with another feeder 12b such as a tape feeder so that the throughput of the component mounting machine 10 (the amount of printed circuit board products produced per unit time) is equal to or higher than a predetermined value. slot 12a is determined.

The component transfer device 13 includes a head driving device 13a, a moving table 13b, a mounting head 13c and a holding member 13d. The head driving device 13a is configured to be able to move the moving table 13b in the X-axis direction and the Y-axis direction (the direction perpendicular to the X-axis direction in the horizontal plane) by a linear motion mechanism. A mounting head 13c is detachably (exchangeably) provided on the moving table 13b by a clamp member. The mounting head 13 c uses at least one holding member 13 d to pick up and hold the component 91 supplied by the component supply device 12 and mounts the component 91 on the substrate 90 positioned by the substrate transfer device 11 . For example, a suction nozzle, a chuck, or the like can be used as the holding member 13d.

The component camera 14 and the substrate camera 15 can use known imaging devices. The component camera 14 is fixed to the base of the component mounter 10 so that the optical axis faces upward in the vertical direction (the Z-axis direction orthogonal to the X-axis direction and the Y-axis direction). The component camera 14 can image the component 91 held by the holding member 13d from below.

The substrate camera 15 is provided on the moving table 13b of the component transfer device 13 so that the optical axis is downward in the vertical direction (Z-axis direction). The substrate camera 15 can image the substrate 90, the cavity unit 50 of the bulk feeder 30, and the like from above, for example. The component camera 14 and the board camera 15 perform imaging based on control signals sent from the control device 20 . Image data of images captured by the component camera 14 and the board camera 15 are transmitted to the control device 20 .

The control device 20 includes a known arithmetic device and storage device, and constitutes a control circuit. Information and image data output from various sensors provided in the component mounting machine 10 are input to the control device 20 . The control device 20 sends a control signal to each device based on a control program, preset wearing conditions, and the like.

For example, the control device 20 causes the substrate camera 15 to image the substrate 90 positioned by the substrate transfer device 11 . The control device 20 processes the image captured by the board camera 15 and recognizes the positioning state of the board 90 . Further, the control device 20 causes the holding member 13d to collect and hold the component 91 supplied by the component supply device 12, and causes the component camera 14 to image the component 91 held by the holding member 13d. The control device 20 processes the image captured by the component camera 14 and recognizes the holding posture of the component 91 .

The control device 20 moves the holding member 13d upward from the intended mounting position preset by the control program or the like. Further, the control device 20 corrects the planned mounting position based on the positioning state of the substrate 90, the holding attitude of the component 91, and the like, and sets the mounting position where the component 91 is actually mounted. The planned mounting position and mounting position include the position (X-axis coordinate and Y-axis coordinate) as well as the rotation angle.

The control device 20 corrects the target position (X-axis coordinate and Y-axis coordinate) and rotation angle of the holding member 13d according to the mounting position. The controller 20 lowers the holding member 13 d at the corrected target position at the corrected rotation angle to mount the component 91 on the board 90 . The control device 20 repeats the above pick-and-place cycle to perform a mounting process of mounting a plurality of components 91 on the board 90 .

1-2. Configuration Example of Bulk Feeder 30 The bulk feeder 30 may take various forms as long as it can supply the parts 91 . As shown in FIGS. 2 to 5, the bulk feeder 30 of the embodiment includes a feeder main body 31, a receiving member 32, a bracket 33, a track member 34, a lock unit 35, a cover 36, and a shutter 37. , a connecting member 38 , an air supply device 39 , a vibrating device 40 , a cavity unit 50 , a feeder control device 60 and a parts case 70 .

As shown in FIG. 2, the feeder main body 31 is shaped like a flat box. The feeder main body 31 is detachably attached to the slot 12a of the component supply device 12 . The feeder main body 31 is formed with a connector 31a and a plurality of (two in the figure) pins 31b, 31b on the leading end side in the direction in which the component 91 is conveyed. The conveying direction of the component 91 is the extending direction (arrow SD direction) of the conveying path Rd0, and corresponds to the Y-axis direction in the component mounter 10 when the feeder body 31 is mounted in the slot 12a.

The connector 31a is provided so as to be communicable with the control device 20 when the feeder main body 31 is installed in the slot 12a. Also, the bulk feeder 30 is fed with power through the connector 31a. A plurality of (two) pins 31b, 31b are inserted into guide holes provided in the slot 12a, and are used for positioning when the feeder main body 31 is mounted in the slot 12a.

A component case 70 that stores components 91 in a bulk state is detachably attached to the feeder main body 31 via a receiving member 32 . As shown in FIG. 3, the parts case 70 is formed with a discharge port 71 through which the parts 91 are discharged. The component case 70 of the embodiment is an external device of the bulk feeder 30 . For example, the operator selects the component case 70 that houses the component 91 to be supplied to the substrate 90 from among the plurality of component cases 70 and attaches the selected component case 70 to the feeder main body 31 .

The receiving member 32 supports the component case 70 attached to the feeder main body 31 and is provided so as to vibrate with respect to the feeder main body 31 . The receiving member 32 is provided in the receiving area Ar0 for receiving the component 91 ejected from the component case 70 . The receiving member 32 of the embodiment comprises an inclined portion 32a and a delivery portion 32b. The inclined portion 32 a is a portion inclined downward from the outlet 71 of the component case 70 . The part 91 ejected from the ejection port 71 is guided downward. The delivery portion 32b is a portion that extends upward from the tip side of the inclined portion 32a. The leading end side of the delivery portion 32b is open and communicates with the transport path Rd0 of the track member 34. As shown in FIG. The component 91 guided downward by the inclined portion 32a is sent upward at the sending portion 32b by the air supply device 39 and sent to the transport path Rd0.

The bracket 33 is provided so as to be able to vibrate with respect to the feeder body portion 31 . The bracket 33 is formed in a block shape extending in the direction in which the component 91 is transported (the direction in which the transport path Rd0 extends (the arrow SD direction)). A track member 34 is attached to the upper surface of the bracket 33 . The bracket 33 is supported by a support member 41 of the vibrating device 40 . The lock unit 35 fixes the track member 34 while the track member 34 is attached to the bracket 33 . When the track member 34 is fixed by the lock unit 35 , the track member 34 can vibrate integrally with the bracket 33 with respect to the feeder main body 31 . The track member 34 can be removed from the bracket 33 by unlocking the lock unit 35 .

The track member 34 has a groove-shaped transport path Rd0 along which the component 91 ejected from the component case 70 is transported. The transport path Rd0 may take various forms as long as it can transport the component 91 . As shown in FIG. 5, the transport path Rd0 of the embodiment includes a pair of side wall surfaces 34a, 34a, a tip side wall surface 34b, a pair of corner portions 34c, 34c, and an introduction portion 34d.

The pair of side wall surfaces 34a, 34a are wall surfaces extending along the extending direction (arrow SD direction) of the groove-shaped transport path Rd0. The tip side wall surface 34b is a wall surface provided on the tip side in the extending direction (arrow SD direction) of the groove-shaped transport path Rd0. The pair of corners 34c, 34c are corners formed by the tip side wall surface 34b and the pair of side wall surfaces 34a, 34a. The introduction portion 34d communicates with the sending portion 32b of the receiving member 32, and sends the component 91 sent from the sending portion 32b to the transport path Rd0.

When the feeder body 31 is installed in the slot 12a, at least part of the track member 34 is arranged in the supply area As0. The supply area As0 is an area where the component mounting machine 10 can pick up the component 91 . Specifically, the supply area As0 is an area in which the component 91 can be picked up by the holding member 13d supported by the mounting head 13c, and is included in the movable range of the mounting head 13c.

The component 91 is transported to the cavity unit 50 provided in the supply area As0 in the bottom of the groove-shaped transport path Rd0. The cavity unit 50 vibrates the track member 34 to provide a plurality of cavities 51 in the supply area As0 (example shown in FIG. Then, 120) are provided. The cavity unit 50 is replaceably attached to the track member 34 .

Each of the multiple (120) cavities 51 is intended to accommodate one component 91 . Specifically, as shown in FIG. 4, a plurality of (120) cavities 51 are arranged in a matrix in the supply area As0. For example, the cavity unit 50 of the embodiment has a total of 120 cavities 51, with 10 cavities arranged in the extending direction (arrow SD direction) of the transport path Rd0 and 12 cavities arranged in the width direction (arrow WD direction) of the transport path Rd0. I have.

Each of the plurality of (120) cavities 51 is open above the transport path Rd0 and is capable of accommodating the component 91 therein. For example, when the part 91 has a rectangular parallelepiped shape, the opening of the cavity 51 is formed in a rectangular shape and set to a dimension slightly larger than the outer dimensions of the part 91 . The depth of the cavity 51 is appropriately set according to the size of the component 91 so that the component 91 can be accommodated therein. In addition, the number of cavities 51 is appropriately set in consideration of the required number of cavities 51 and the degree of density that may affect transportability.

Specifically, the number of cavities 51 of the cavity unit 50 is preferably set to be greater than the maximum number of parts 91 picked up in one pick-and-place cycle. The above maximum number corresponds to the number of holding members 13d supported by the mounting head 13c. For example, when the mounting head 13c supports 24 suction nozzles, the number of cavities 51 should be set to be at least 24 or more.

Further, the track member 34 is provided with at least one reference portion 34e. At least one reference portion 34e is provided in the supply area As0 and used when recognizing the positions of the plurality of cavities 51 of the cavity unit 50. As shown in FIG. In the embodiment, a plurality of (for example, two) reference portions 34e, 34e are provided in a region closer to the tip side than the tip side wall surface 34b. The plurality (two) of reference portions 34e, 34e are circular marks, and are spaced apart by a predetermined distance in the width direction (arrow WD direction) of the track member 34. As shown in FIG.

The cover 36 is fixed to the track member 34 and covers the transport path Rd0 from above. An exhaust port 36 a is formed on the upper surface of the cover 36 . The exhaust port 36a is covered with a mesh whose joints are smaller than the external dimensions of the part 91. - 特許庁The cover 36 prevents the part 91 from jumping out of the conveying path Rd0, and exhausts air to the outside from the exhaust port 36a.

The shutter 37 is provided above the track member 34 and can block the opening of the supply area As0. By opening and closing the shutter 37, the bulk feeder 30 can prevent the component 91 from jumping out and foreign matter from entering the supply area As0. The shutter 37 of the embodiment is switched between an open state, a closed state, and an intermediate state by opening and closing operations. The closed state of the shutter 37 is a state in which the shutter 37 contacts the track member 34 and the opening of the supply area As0 is completely closed. At this time, as shown by the dashed line in FIG. 4, the shutter 37 is positioned in the track member 34 relative to the plurality (two) of the reference portions 34e, 34e in the conveying direction of the component 91 (extending direction of the conveying path Rd0 (arrow SD direction). )), and when viewed from above, a plurality of (two) reference portions 34e, 34e are visible and imageable.

The open state of the shutter 37 is a state in which the opening of the supply area As0 is not blocked and the cavity unit 50 is exposed. At this time, the holding member 13 d supported by the mounting head 13 c can attempt to pick up the component 91 from any of the plurality of cavities 51 of the cavity unit 50 . The intermediate state of the shutter 37 is a state between the closed state and the open state, in which the shutter 37 is separated from the track member 34 by an amplitude greater than the amplitude of the track member 34 vibrated by the vibration of the vibrating device 40 and is supplied. This is a state in which projection of the component 91 from the opening of the area As0 is restricted. The shutter 37 is opened and closed by a driving device, and is brought into a closed state, an open state, or an intermediate state according to the driving state of the driving device.

The introduction portion 34d of the track member 34 communicates with the sending portion 32b of the receiving member 32, and sends the component 91 sent from the sending portion 32b to the transport path Rd0. Specifically, the leading end of the introduction part 34d is open and is connected to the leading end of the delivery part 32b via a connecting member 38. As shown in FIG. The connecting member 38 is tubular and connects the delivery portion 32b of the receiving member 32 and the introduction portion 34d of the track member 34 . The connecting member 38 of the embodiment is a tight coil spring and has flexibility.

The connecting member 38 connects the sending portion 32b of the receiving member 32 and the introducing portion 34d of the track member 34 so that the component 91 can flow between the receiving area Ar0 and the transport path Rd0. Further, the connecting member 38 deforms according to the vibration of the receiving member 32 and the track member 34 with respect to the feeder main body 31, thereby absorbing these vibrations. The connecting member 38 reduces or blocks vibrations transmitted between the independently vibrating receiving member 32 and track member 34 .

The air supply device 39 supplies air (positive pressure air) from below the receiving area Ar<b>0 to circulate the component 91 from the receiving member 32 to the track member 34 via the connecting member 38 . The air supply device 39 of the embodiment supplies positive pressure air supplied from the outside from below the receiving area Ar0 based on a command from the feeder control device 60 . The air supply device 39 can also cut off the supply of positive pressure air based on a command from the feeder control device 60 .

When the air supply device 39 supplies positive pressure air, the components 91 staying in the receiving area Ar0 are blown upward by the positive pressure air. The positive pressure air and the component 91 flow through the sending portion 32b of the receiving member 32, the connecting member 38 and the introducing portion 34d in this order, and reach the transport path Rd0 of the track member . The positive pressure air that has reached the transport path Rd0 is exhausted to the outside through the exhaust port 36a of the cover 36. As shown in FIG. The component 91 that has reached the transport path Rd0 drops onto the transport path Rd0 of the track member 34 due to its own weight.

The vibrating device 40 vibrates the track member 34 to place the component 91 in the cavity unit 50 provided in the supply area As0 from the bottom of the groove-shaped transport path Rd0 where the component mounting machine 10 can pick up the component 91. transport. The vibrating device 40 may take various forms as long as it can convey the component 91 to the cavity unit 50 . The vibration excitation device 40 of the embodiment includes a plurality of (eg, four) support members 41, a plurality of (eg, four) vibrators 42, a plurality of (eg, two) vibration sensors 43, and a power feeding device. 44. A plurality (four) of support members 41 connect the feeder main body 31 and the bracket 33 to support the bracket 33 and the track member 34 .

The plurality (four) of support members 41 are provided with two types of support members 41, an advance support member 41a and a retreat support member 41b. The forward support member 41a is used for forward transport for transporting the component 91 along the extension direction (arrow SD direction) from the component case 70 side toward the cavity unit 50 side on the transport path Rd0. The retraction support member 41b is used for retraction transport for transporting the component 91 along the extension direction (arrow SD direction) from the cavity unit 50 side toward the component case 70 side on the transport path Rd0. The forward support member 41a and the backward support member 41b are different from each other in the direction of inclination with respect to the vertical direction (Z-axis direction).

Specifically, one end of the forward support member 41 a is connected to the feeder main body 31 , and the other end of the forward support member 41 a is connected to the bracket 33 . The forward support member 41a is inclined in the backward direction (the direction in which the component 91 is transported backward) with respect to the vertical direction (the Z-axis direction). One end of the retraction support member 41b is connected to the feeder main body 31, and the other end of the retraction support member 41b is connected to the bracket 33. As shown in FIG. The retreat support member 41b is inclined in the forward direction (the direction in which the component 91 is forwardly conveyed) with respect to the vertical direction (the Z-axis direction).

A plurality of (four) vibrators 42 are fed with power from a power feeder 44 and vibrate at a predetermined amplitude and frequency. The plurality (four) of vibrators 42 can use piezoelectric elements, for example, and are attached to the support member 41 . Further, in the embodiment, the plurality (four) of support members 41 are provided with two types of support members 41, an advance support member 41a and a retreat support member 41b. Therefore, the plurality (four) of vibrators 42 are provided with two types of vibrators 42: an advancing vibrator 42a provided on the advancing support member 41a and a retreating vibrator 42b provided on the retreating support member 41b. there is

Vibration is imparted to the track member 34 via the bracket 33 by vibrating at least one of the plurality (four) of the vibrators 42 . Further, the amplitude and frequency of the vibration applied to the track member 34 fluctuate according to the voltage and frequency of the AC power supplied to the vibrator 42 . A plurality (two) of vibration sensors 43 detect the vibration state of the track member 34 that is vibrated by the vibrating device 40 . The plurality (two) of vibration sensors 43 can detect, for example, the amplitude, frequency, damping time, and vibration trajectory of the vibration of the track member 34 (movement trajectory of a specific portion accompanying the vibration). In the embodiment, a plurality (two) of vibration sensors 43 are provided on each pair of forward support member 41a and backward support member 41b.

Note that when the vibrating device 40 vibrates the track member 34, the track member 34 makes an elliptical motion when viewed from the side. As a result, a forward upward external force or a backward upward external force is applied to the component 91 on the transport path Rd<b>0 according to the rotation direction of the elliptical motion of the track member 34 . As a result, the component 91 on the transport path Rd0 is transported forward or backward.

The power supply device 44 varies the voltage and frequency of AC power to be supplied to the vibrator 42 based on a command from the feeder control device 60 . As a result, the amplitude and frequency of the vibration applied to the track member 34 are adjusted, and the rotational direction of the elliptical motion of the track member 34 is defined. When the amplitude and frequency of the vibration of the track member 34 and the rotation direction of the elliptical motion caused by the vibration fluctuate, the conveying speed, the degree of dispersion, the conveying direction, and the like of the parts 91 to be conveyed fluctuate.

The feeder control device 60 has a known arithmetic device and storage device, and constitutes a control circuit. The feeder control device 60 is supplied with power through the connector 31a in a state where the feeder main body 31 is installed in the slot 12a, and is ready to communicate with the control device 20 of the component mounting machine 10. FIG. The feeder control device 60 drives and controls the vibrating device 40 to vibrate the track member 34 to transport the component 91 on the transport path Rd0.

1-3. Configuration Example of Maintenance Device 80 The maintenance device 80 is applied to the bulk feeder 30 having the track member 34 and the cavity unit 50 . As described above, the track member 34 has a receiving area Ar0 for receiving the component 91 discharged from the component case 70 that stores the component 91 in bulk and supplied to the component mounting machine 10, and the component mounting machine 10 having the component 91 and a supply area As0 from which the parts 91 are conveyed. In addition, the cavity unit 50 creates a plurality (120) of cavities 51 in the supply area As0 in which one of the components 91 transported from the receiving area Ar0 to the supply area As0 is to be accommodated by vibrating the track member 34. Prepare.

The maintenance device 80 includes a recognition section 81 and a determination section 82 as control blocks. The maintenance device 80 can also include a clearing unit 83 . The maintenance device 80 can also include a guide section 84 . As shown in FIG. 6 , the maintenance device 80 of the embodiment includes a recognition section 81 , a determination section 82 , a resolution section 83 and a guide section 84 .

Also, the maintenance device 80 can be provided in various control devices. For example, maintenance device 80 can be provided in feeder controller 60 of bulk feeder 30 . The maintenance device 80 can also be provided in the control device 20 of the component mounting machine 10 . The maintenance device 80 can also be provided in a control device that controls a work line for substrates including the component mounting machine 10 . The maintenance device 80 can also be provided in a control device that controls at least one work line for substrates. The maintenance device 80 can also be formed on the cloud. As shown in FIG. 6 , the maintenance device 80 of the embodiment is provided in the control device 20 of the component mounting machine 10 .

Furthermore, the maintenance device 80 executes control according to the flowchart shown in FIG. The recognition unit 81 performs the process shown in step S11. The determination unit 82 performs the process shown in step S12. The canceling unit 83 performs the determination shown in step S13 and the process shown in step S14. The guidance unit 84 performs the determination shown in step S15 and the process shown in step S16.

1-3-1. Recognition unit 81 and determination unit 82
FIG. 8 shows an example of a cavity unit 50 supplied with parts 91 . The figure shows a total of 120 cavities 51, 10 of which are arranged in the direction in which the component 91 is conveyed (the direction in which the conveying path Rd0 extends (the direction of the arrow SD)) and 12 in the width direction of the conveying path Rd0 (the direction of the arrow WD). 2 shows an example of a state in which the component 91 is stored in . Also, FIG. 9 shows an example of the state of accommodation of the components 91 accommodated in the three cavities 51 of FIG.

There are parts 91 properly accommodated in the cavity 51, such as the part 91 accommodated in the cavity 51 on the left side of the paper surface of FIG. 9 (area AR1 in FIG. 8, etc.). Moreover, there are cavities 51 in which no component 91 is accommodated (region AR2 in FIG. 8, etc.). Furthermore, there are parts 91 where other parts 91 are piled up like the part 91 housed in the cavity 51 in the center of the paper surface of FIG. 9 (area AR3 in FIG. 8, etc.).

Moreover, there is a cavity 51 in which a foreign object 92 other than the part 91 is accommodated (area AR4 in FIG. 8, etc.). Furthermore, there are cases where a plurality of (two in the figure) components 91 are accommodated in one cavity 51, such as the component 91 accommodated in the cavity 51 on the right side of the paper surface of FIG. area AR5, etc.). In the cavity 51 on the right side of FIG. 9, two components 91 are housed in a posture different from the normal posture (a posture in which the components 91 are standing).

Of the areas AR2 to AR5 where it is difficult to pick up the parts 91, the cavities 51 shown in the areas AR2 and AR3 properly accommodate the parts 91 while the parts 91 are being repeatedly supplied, making it possible to pick up the parts 91. could become However, the cavities 51 shown in the area AR4 and the area AR5 may make it difficult to pick up the parts 91 even if the supply of the parts 91 is repeated. For example, the foreign matter 92 includes an electrode member from which at least a part of the electrode of the component 91 is peeled off. Also, the foreign matter 92 includes sticky dust and the like. These members may remain stuck in the cavity 51 .

Furthermore, when a plurality of parts 91 are accommodated in one cavity 51, there is a possibility that a stack of parts 91 is fitted in one cavity 51. FIG. As described above, the more clogging of the housing members 90m in the cavities 51, the less the number of cavities 51 to which the components 91 can be supplied, and the lower the production efficiency of substrate products. Therefore, the maintenance device 80 includes a recognition section 81 and a determination section 82 .

The recognizing unit 81 recognizes the orientation of the housing member 90m in the cavity 51 each time the supply operation of conveying the component 91 from the receiving area Ar0 to the supply area As0 is performed (the step shown in FIG. 7). S11). Further, the determining unit 82 determines whether or not the containing member 90m is clogged in the cavity 51 based on the posture of the containing member 90m recognized by the recognition unit 81 for the continuous supply operation a plurality of times (shown in FIG. 7). step S12).

For example, in the housing member 90m, like the component 91 housed in the cavity 51 on the left side of the paper surface of FIG. A part 91 is included. Further, the housing member 90m includes a component 91 fitted in the cavity 51, such as the component 91 housed in the cavity 51 (area AR5 in FIG. 8, etc.) on the right side of the paper surface of FIG. Furthermore, the containing member 90m includes foreign matter 92 remaining in the cavity 51 (area AR4 in FIG. 8, etc.).

The recognition part 81 may take various forms as long as it can recognize the posture of the housing member 90m. For example, the recognition unit 81 can also recognize the orientation of the housing member 90m housed in the cavity 51 using a known measuring instrument after the supply operation is performed. However, as the number of cavities 51 increases, the measurement work becomes more complicated, and there is a possibility that the required time required for recognizing the posture of the housing member 90m will increase.

Therefore, after the supply operation is performed, the recognition unit 81 causes the imaging device CU0 to image the cavity unit 50, performs image processing on the image of the cavity unit 50 captured by the imaging device CU0, It is good to recognize the posture of 90m. The imaging device CU0 only needs to be capable of imaging the cavity unit 50, and a known imaging device can be used. For example, the imaging device CU0 can use the board camera 15 .

The substrate camera 15 images at least a part of the cavity 51 included in the cavity unit 50 from above. When it is difficult for the substrate camera 15 to image all the cavities 51 included in the cavity unit 50 at once, the cavity unit 50 is divided into a plurality of regions, and at least one cavity 51 is captured in each divided region. It can be imaged.

The image processing may be any processing capable of extracting the housing member 90m from the image of the cavity unit 50, and various methods may be employed. For example, the recognition section 81 can binarize the image of the cavity unit 50 captured by the imaging device CU0 to recognize the outer shape of the housing member 90m. The recognition unit 81 can recognize the center position 90a of the housing member 90m based on the recognized outer shape of the housing member 90m.

Further, the recognition unit 81 recognizes the arrangement of the plurality of cavities 51 and the position of each of the plurality of cavities 51 based on at least one reference portion 34e (in the embodiment, a plurality of (two) reference portions 34e, 34e). can recognize. The recognition unit 81 can recognize the cavity 51 in which the accommodation member 90m is accommodated and the position of the accommodation member 90m in the cavity 51 based on the recognized center position 90a of the accommodation member 90m and the arrangement and position of the cavity 51. can.

Further, the recognition unit 81 can also recognize the accommodation angle 90 b of the accommodation member 90 m accommodated in the cavity 51 based on the recognized outer shape of the accommodation member 90 m and the shape information of the cavity 51 . In this manner, the recognition unit 81 can recognize the posture of the housing member 90m in the cavity 51 from the center position 90a and the housing angle 90b of the housing member 90m.

The recognition unit 81 recognizes the orientation of the housing member 90m for all the cavities 51 housing the housing member 90m. The cavity 51 in which the accommodating member 90m is accommodated has a different brightness in the image of the cavity unit 50 than the cavity 51 in which the accommodating member 90m is not accommodated. Therefore, the recognizing section 81 can also recognize the posture of the housing member 90m for the cavity 51 for which a predetermined brightness is obtained in the image of the cavity unit 50. FIG. As a result, the recognition unit 81 can shorten the time required to recognize the posture of the housing member 90m compared to the case of trying to recognize the posture of the housing member 90m for all the cavities 51 .

The recognition unit 81 stores information on the recognized orientation of the housing member 90m (including information specifying the cavity 51 in which the housing member 90m is housed, and information on the center position 90a and the housing angle 90b of the housing member 90m) in the storage device. Any known storage device may be used as long as the storage device can store the above information. For example, the recognition unit 81 can store the above information in a storage device provided in the control device 20 .

The determining unit 82 determines whether or not the containing member 90m in the cavity 51 is clogged based on the orientation of the containing member 90m recognized by the recognition unit 81 for a plurality of consecutive supply operations. The determination unit 82 may take various forms as long as it can determine whether or not the housing member 90m is clogged. For example, when the clogged accommodating member 90m is subjected to a plurality of consecutive supply operations, the variation in the center position 90a of the accommodating member 90m is greater than that of the unclogged accommodating member 90m. become smaller. In addition, when the clogged accommodating member 90m is subjected to a plurality of consecutive supply operations, the accommodation angle 90b of the accommodating member 90m varies more than the unclogged accommodating member 90m. become smaller.

Therefore, the range of variation of the center positions 90a of the accommodating members 90m accommodated in the same cavity 51 in a plurality of continuous supply operations is defined as a first posture range AR11. Further, the range of variation in the accommodation angle 90b of the accommodation member 90m accommodated in the same cavity 51 in a plurality of consecutive supply operations is defined as a second posture range AR21. Furthermore, let at least one of the first posture range AR11 and the second posture range AR21 be the posture range AR01. The posture range AR01 can be statistically represented by variance, standard deviation, or the like, for example.

At this time, when the recognition unit 81 acquires the following recognition result, the determination unit 82 can determine that the housing member 90m in the cavity 51 is clogged. The attitude range of the containing member 90m housed in the same cavity 51 is compared with the attitude range AR01 assumed in the case where the containing member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. AR01 is narrow. Note that the determination unit 82 can determine that there is no clogging in the housing member 90m in the cavity 51 when the recognition unit 81 does not acquire the recognition result for the predetermined posture range AR01.

FIG. 10 shows an example of the first posture range AR11 and the second posture range AR21 assumed when the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. FIG. FIG. 11 shows an example of a first posture range AR11 and a second posture range AR21 assumed when clogging occurs in the housing member 90m. Three dashed rectangles shown in FIGS. 10 and 11 represent an example of recognition results (outer shape of the accommodating member 90m) of recognizing the accommodating member 90m accommodated in the same cavity 51 in three consecutive supply operations. showing.

A first posture range AR11 shown in FIGS. 10 and 11 represents a range of variations in the central positions 90a of the accommodating members 90m accommodated in the same cavity 51 during three consecutive supply operations. is shown in Further, the second posture range AR21 shown in FIGS. 10 and 11 schematically shows, with arrows, the range of variation in the accommodation angle 90b of the accommodation member 90m accommodated in the same cavity 51 in three consecutive supply operations. It is a thing. For convenience of illustration, the accommodation angle 90b is described for one accommodation member 90m. The accommodation angle 90b is shown as an angle with respect to the target accommodation angle (in this case, the accommodation member 90m is accommodated with the longitudinal direction of the accommodation member 90m extending along the vertical direction of the paper surface).

The first posture range AR11 shown in FIG. 11 is assumed in the first posture range AR11 shown in FIG. It is narrower than the first posture range AR11. Further, the second posture range AR21 shown in FIG. 11 is assumed when the second posture range AR21 shown in FIG. narrower than the second attitude range AR21. Therefore, the determination unit 82 determines that the accommodation member 90m in the cavity 51 is clogged with respect to the recognition result shown in FIG. Note that the determination unit 82 determines that the accommodation member 90m in the cavity 51 is not clogged with respect to the recognition result shown in FIG.

Further, the recognition unit 81 selects a range narrower by an arbitrary amount than the first posture range AR11 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. As a threshold, it may be recognized whether or not the first posture range AR11 shown in FIG. 11 is narrower than the range as the threshold. The recognition unit 81 uses a range that is narrower by an arbitrary amount than the second posture range AR21 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10 as a threshold value. , it may be recognized whether or not the second posture range AR21 shown in FIG. 11 is narrower than the range as the threshold. Further, the recognition unit 81 may recognize both the first posture range AR11 and the second posture range AR21 as the posture range AR01 of the housing member 90m, or may recognize only one of them. When the recognition unit 81 recognizes only one of the first posture range AR11 and the second posture range AR21, the determination unit 82 determines the position of the posture range AR01 in the cavity 51 based only on the recognition result of the posture range AR01 recognized by the recognition unit 81. It is determined whether or not the housing member 90m is clogged.

The number of supply operations (three times in the above example) used to determine whether or not the containing member 90m is clogged can be obtained in advance through simulation, verification using an actual machine, or the like. The determination threshold used when determining whether or not the housing member 90m is clogged can be obtained in advance through simulation, verification using an actual machine, or the like. In the above case, the determination threshold includes the first posture range AR11 and the second posture range AR21 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. be Further, the judgment threshold has a range that is narrower by an arbitrary amount than the first posture range AR11 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. included. The determination threshold includes a range that is narrower by an arbitrary amount than the second posture range AR21 assumed in the case where the containing member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. .

When the clogged storage member 90m is continuously fed a plurality of times (eg, three times), the clogged storage member 90m is compared to the unclogged storage member 90m last time (eg, the first time). ) and the current (for example, second) supply operation, the amount of change in the center position 90a of the containing member 90m becomes smaller. In addition, when the clogged housing member 90m is continuously fed a plurality of times (for example, three times), compared to the clogged housing member 90m, the previous time (for example, The amount of change in the accommodation angle 90b of the accommodation member 90m between the first supply operation and the current (for example, second) supply operation is reduced.

Therefore, for the same cavity 51, the amount of change between the center position 90a of the containing member 90m recognized in the previous supply operation and the center position 90a of the containing member 90m recognized in the current supply operation is defined as the first attitude change amount AR12. do. Further, for the same cavity 51, the amount of change between the accommodation angle 90b of the accommodation member 90m recognized in the previous supply operation and the accommodation angle 90b of the accommodation member 90m recognized in the current supply operation is referred to as a second attitude change amount AR22. do. Furthermore, let at least one of the first posture change amount AR12 and the second posture change amount AR22 be the posture change amount AR02.

At this time, the determination unit 82 can determine that the accommodation member 90m in the cavity 51 is clogged when the recognition unit 81 continuously acquires the following recognition results a plurality of times. Compared with the attitude change amount AR02 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10, the attitude of the accommodating member 90m accommodated in the same cavity 51 The amount of change AR02 is small.

Note that the determination unit 82 can determine that there is no clogging in the housing member 90m in the cavity 51 when the recognition unit 81 does not acquire the recognition result for the predetermined posture change amount AR02. Further, the determination unit 82 can determine that there is no clogging of the housing member 90m in the cavity 51 when the above recognition result is not obtained continuously for a plurality of times.

FIG. 12 shows an example of the first attitude change amount AR12 and the second attitude change amount AR22 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. there is FIG. 13 shows an example of a first posture change amount AR12 and a second posture change amount AR22 assumed when clogging occurs in the housing member 90m. The three dashed rectangles shown in FIGS. 12 and 13 indicate recognition of the accommodating member 90m accommodated in the same cavity 51 in three successive supply operations, similar to the examples shown in FIGS. An example of the result (outer shape of the housing member 90m) is shown.

Further, the first posture change amount AR12 shown in FIG. 12 is obtained by determining the center position 90a of the containing member 90m recognized for the previous feeding operation and the containing member 90m recognized for the current supplying operation for three consecutive supply operations. The amount of change from the center position 90a of is schematically shown by an arrow. The first posture change amount AR12 shown in FIG. 13 indicates a region that should be illustrated because the amount of change is extremely small and it is difficult to illustrate it with an arrow. Further, the second posture change amount AR22 shown in FIGS. 12 and 13 is obtained by recognizing the accommodation angle 90b of the accommodation member 90m recognized for the previous supply operation and the current supply operation for the three consecutive supply operations. The amount of change from the accommodation angle 90b of the accommodation member 90m is schematically shown by an arrow. What has already been said about the manner of illustration of the containment angle 90b also applies to FIGS.

The first posture change amount AR12 shown in FIG. 13 is assumed when the first posture change amount AR12 shown in FIG. is smaller than the first posture change amount AR12. Further, the second posture change amount AR22 shown in FIG. 13 is the second posture change amount AR22 shown in FIG. is smaller than the second posture change amount AR22 assumed for . Therefore, the determination unit 82 determines that the accommodation member 90m in the cavity 51 is clogged with respect to the recognition result shown in FIG. Note that the determination unit 82 determines that the accommodation member 90m in the cavity 51 is not clogged with respect to the recognition result shown in FIG.

In addition, the recognizing unit 81 detects a change that is smaller by an arbitrary amount than the first attitude change amount AR12 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. Using the amount as a threshold, it may be recognized whether or not the first posture change amount AR12 shown in FIG. 13 is smaller than the above change amount as the threshold. The recognizing unit 81 determines a change amount that is smaller than the second posture change amount AR22 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. As a threshold, it may be recognized whether or not the second posture change amount AR22 shown in FIG. 13 is smaller than the above change amount as the threshold. Further, the recognition unit 81 may recognize both the first posture change amount AR12 and the second posture change amount AR22 as the posture change amount AR02 of the housing member 90m, or may recognize only one of them. When the recognition unit 81 recognizes only one of the first posture change amount AR12 and the second posture change amount AR22, the determination unit 82, based only on the recognition result of the posture change amount AR02 recognized by the recognition unit 81, It is determined whether or not the housing member 90m in the cavity 51 is clogged.

As described above, the number of feeding operations (three times in the above example) used to determine whether or not the containing member 90m is clogged can be obtained in advance through simulation, verification using an actual machine, or the like. Further, the determination threshold used when determining whether or not the housing member 90m is clogged can be obtained in advance through simulation, verification using an actual machine, or the like. In the above case, the determination threshold includes the first attitude change amount AR12 and the second attitude change amount AR22 assumed when the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. is included. Further, the determination threshold value is a change that is smaller by an arbitrary amount than the first attitude change amount AR12 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. quantity included. The determination threshold has a change amount that is smaller by an arbitrary amount than the second attitude change amount AR22 assumed in the case where the accommodating member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. included.

For example, the heavier the mass of the part 91 , the less likely it is to move in the cavity 51 . As described above, if the type of the component 91 is different, the number of samples required for determination may vary, and the number of supply operations used when determining whether or not the containing member 90m is clogged may vary. There is Also, if the type of the component 91 is different, it may be better to change at least one of the above-described determination thresholds.

Therefore, the determination unit 82 can change at least one of the number of supply operations and the determination threshold used when determining whether or not the containing member 90m is clogged, according to the type of the component 91 . Accordingly, the determination unit 82 can determine whether or not the housing member 90m is clogged using an appropriate number of times and a determination threshold according to the type of the component 91 . It should be noted that the above number of times and the determination threshold according to the type of the component 91 can be obtained in advance through simulation, verification using an actual machine, or the like. Also, the type of the part 91 can be specified by the operator, or can be automatically specified based on a control program or the like.

Furthermore, as the number of supply operations used to determine whether or not the containing member 90m is clogged increases, the amount of information regarding the attitude of the component 91 increases, and the storage area required for the storage device increases. Further, as the number of cavities 51 included in the cavity unit 50 increases, the amount of information regarding the posture of the component 91 increases, and the storage area required for the storage device increases.

Therefore, the recognizing unit 81 can store information about the orientation of the component 91 in the storage device when a predetermined recognition result is obtained. The recognition unit 81 can also delete the stored information about the orientation of the component 91 from the storage device when a predetermined recognition result is not obtained. For example, the first posture range AR11 of the containing member 90m for the second supply operation is the first position assumed when the containing member 90m is the component 91 normally supplied to the cavity 51 that can be picked up by the component mounting machine 10. Assume that the predetermined recognition result is not obtained because it is wider than the posture range AR11.

In this case, the recognizing unit 81 does not store information about the orientation of the component 91 for the second supply operation in the storage device. In addition, the recognition unit 81 can also delete information about the orientation of the component 91 for the first supply operation from the storage device. What has been described above for the first posture range AR11 can be similarly applied to the first posture variation AR12, the second posture range AR21, and the second posture variation AR22.

Also, it is assumed that a plurality of (two) components 91 are accommodated in one cavity 51 like the component 91 accommodated in the cavity 51 on the right side of the paper surface of FIG. The accommodation state of the plurality (two) of the components 91 in this case corresponds to the arrangement of the electrodes of one component 91 . Therefore, as indicated by the dashed line, the recognizing unit 81 may recognize the orientation of a plurality of (two) parts 91 accommodated in one cavity 51 as one part 91 . Even if such an erroneous recognition occurs, the determination unit 82 can recognize a stack in which the components 91 are fitted in one cavity 51 (clogging of the components 91). Therefore, attempts to pick up the stacked components 91 by the component mounting machine 10 are suppressed, and a decrease in throughput (production amount of printed circuit board products per unit time) is suppressed.

1-3-2. Cancellation unit 83
The clearing section 83 attempts to clear the clogging of the housing member 90m when the determination section 82 determines that the housing member 90m is clogged and determines that maintenance of the cavity unit 50 is necessary (Fig. Steps S13 and S14 shown in 7). Note that the description in FIG. 7 is simplified for convenience of illustration. The predetermined condition shown in FIG. 7 is established when the determination unit 82 determines that the housing member 90m is clogged and the elimination unit 83 determines that maintenance of the cavity unit 50 is required.

The clearing unit 83 may take various forms as long as it can try to clear the clogging. For example, the clearing section 83 can attempt to clear the clogging by sucking the clogged accommodating member 90m using a known suction device. However, as the number of clogged housing members 90m increases, the suction work becomes more complicated, and the time required for the suction work may increase.

Therefore, the canceling unit 83 increases the excitation force applied to the track member 34 compared to the case where the track member 34 is vibrated during production of the board product, vibrates the track member 34, and increases the vibration of the track member 34, thereby Try clearing the blockage. For example, as described above, the power supply device 44 of the vibrating device 40 varies the applied voltage and frequency of the AC power supplied to the vibrator 42 based on the command from the feeder control device 60 . Thereby, the amplitude and frequency of the vibration applied to the track member 34 are adjusted.

Therefore, the elimination unit 83 sends a command from the feeder control device 60 to the power supply device 44 to increase the applied voltage of the AC power supplied to the vibrator 42 compared to the case where the track member 34 is vibrated during production of the board product. to increase the amplitude of vibration applied to the track member 34 . Further, the elimination unit 83 causes the feeder control device 60 to send to the power supply device 44 a command to increase the frequency of the AC power supplied to the vibrator 42 compared to the case where the track member 34 is vibrated during production of the board product. , the frequency of vibration applied to the track member 34 is increased.

Further, the canceling unit 83 supplies a command from the feeder control device 60 to increase both the applied voltage and the frequency of the AC power supplied to the vibrator 42 compared to the case where the track member 34 is vibrated during production of the substrate product. The device 44 can also be sent to increase the amplitude and frequency of the vibrations imparted to the track members 34 . The rate of increase in the excitation force of the vibrating device 40 (the rate of increase in amplitude or the rate of increase in frequency of vibration applied to the track member 34) can be obtained in advance through simulation, verification using an actual machine, or the like.

In addition, the elimination unit 83 may try to eliminate the clogging of the storage member 90m by increasing the vibration time for vibrating the track member 34 compared to the case where the track member 34 is vibrated during production of the board product. can. Further, the elimination unit 83 can attempt to eliminate the clogging of the housing member 90m by increasing the above-mentioned excitation time as well as increasing the excitation force described above.

As the number of cavities 51 determined by the determination unit 82 to have clogging of the containing member 90m increases, the number of cavities 51 to which components 91 can be supplied decreases, and the production efficiency of substrate products tends to decrease. Therefore, when the number of cavities 51 determined by the determination unit 82 to be clogged with the accommodating member 90m exceeds a predetermined allowable number, the elimination unit 83 determines that maintenance of the cavity unit 50 is required. be able to.

Further, the more the throughput of the component mounter 10 (the amount of substrate products produced per unit time) decreases due to the clogging of the housing member 90m, the more the cavity unit 50 needs maintenance. Therefore, the elimination unit 83 can also determine that maintenance of the cavity unit 50 is necessary when the throughput of the component mounting machine 10 becomes equal to or less than a predetermined threshold.

The clearing unit 83 determines that the number of cavities 51 determined by the determination unit 82 to be clogged with the containing member 90m exceeds a predetermined allowable number, and the throughput of the component mounting machine 10 is equal to or less than a predetermined threshold. It can also be determined that maintenance of the cavity unit 50 is required at this time. Also, the allowable number of clogged cavities 51 and the throughput threshold can be obtained in advance through simulation, verification using an actual machine, or the like.

For example, the bulk feeder 30 performs the operation of supplying the parts 91 when it is expected that the maximum number of the parts 91 to be picked up by the picking operation in one pick-and-place cycle cannot be secured. If the determining unit 82 determines that the containing member 90m is clogged and that maintenance of the cavity unit 50 is required, the clearing unit 83 removes the clogging of the containing member 90m before the supply operation. You can try to clear the clog.

1-3-3. Guide part 84
The guide section 84 guides maintenance of the cavity unit 50 when the clogging of the accommodating member 90m is not cleared by the clearing section 83 (steps S15 and S16 shown in FIG. 7). Whether or not the clogging of the housing member 90m has been eliminated by the clearing section 83 can be determined by the determination section 82 in the same manner as in the case of determining the presence or absence of clogging of the housing member 90m.

The guide part 84 may take various forms as long as it can guide the maintenance of the cavity unit 50 . For example, the guide section 84 can guide maintenance of the cavity unit 50 using the display device 21 shown in FIGS. A known display device can be used as the display device 21 . FIG. 14 shows an example of guidance for maintenance of the cavity unit 50 by the guide section 84 .

The guide portion 84 can guide the position of the cavity 51 in the cavity unit 50 where the housing member 90m is clogged. A thick rectangle in FIG. 14 shows an example of a method of guiding the cavity 51 in which the housing member 90m is clogged. For convenience of explanation, the clogged cavity 51 corresponds to the clogged cavity unit 50 shown in FIG.

Further, as shown in FIG. 1, the bulk feeder 30 of the embodiment is installed in a predetermined slot 12a among the plurality of slots 12a of the component supply device 12 of the component mounting machine 10. As shown in FIG. When a plurality of bulk feeders 30 are installed in a plurality of slots 12a of the component supply device 12, it is difficult for the operator to recognize which bulk feeder 30 requires maintenance of the cavity unit 50. FIG.

Therefore, the guide part 84 can also guide the slot position where the bulk feeder 30 requiring maintenance of the cavity unit 50 is equipped. In the guidance example shown in FIG. 14, a slot number (×××) indicating the slot position is provided. In addition, in the guidance example shown in the figure, an abbreviation (bulk) indicating that the feeder type is the bulk feeder 30 and a maintenance cause (cavity failure) are provided together.

A unique address is assigned to each of the plurality (120) of cavities 51 in the cavity unit 50 . A unique address has a sequence associated with the arrangement of multiple (120) cavities 51 . Specifically, the unique address may simply be a number from (001) to (120). A unique address is a combination of numbers (01) to (10) indicating the number of rows and numbers (01) to (12) indicating the number of columns (for example, the cavity 51 with 7 rows and 12 columns). case (0712)). Furthermore, the unique address may be unique information that is associated one-to-one with a plurality of (120) cavities 51, and may include character strings and the like in addition to numerical values.

When a unique address is assigned to each of the plurality (120) cavities 51, the guide section 84 can also guide the address of the cavity 51 in which the clogging of the accommodating member 90m has occurred. In the example shown in FIG. 14, a plurality of (120) cavities 51 are formed by combining numerical values (01) to (10) indicating the number of rows and numerical values (01) to (12) indicating the number of columns. Each has a unique address. The guiding part 84 guides the address of the cavity 51 in which the clogging of the accommodating member 90m is generated by combining the numerical value indicating the number of rows and the numerical value indicating the number of columns. Addresses are attached to lead lines drawn from the thick-line rectangles already described.

As described above, the housing member 90 m includes the part 91 fitted in the cavity 51 or the foreign matter 92 remaining in the cavity 51 . Therefore, the determination unit 82 can determine whether or not the cavity 51 is clogged with the component 91 or the foreign matter 92 based on the posture of the component 91 fitted in the cavity 51 or the foreign matter 92 remaining in the cavity 51 . . Further, the clearing section 83 can try to clear the clogging of the part 91 fitted in the cavity 51 or the foreign matter 92 remaining in the cavity 51 . Furthermore, the guide part 84 can guide the maintenance of the cavity unit 50 when the clogging of the part 91 fitted in the cavity 51 or the foreign matter 92 remaining in the cavity 51 is not eliminated.

2. Maintenance Method What has already been described with respect to the maintenance device 80 is also applicable to the maintenance method. Specifically, the maintenance method is applied to the bulk feeder 30 having the track member 34 and the cavity unit 50, and includes a recognition process and a determination process. The recognition process corresponds to control performed by the recognition unit 81 . The determination process corresponds to control performed by the determination unit 82 . The maintenance method can also include a clearing step. The resolving process corresponds to control performed by the resolving unit 83 . The maintenance method can also comprise a guiding step. The guiding process corresponds to control performed by the guiding section 84 .

3. Example of Effect of Embodiment According to the maintenance device 80, since the recognition unit 81 and the determination unit 82 are provided, based on the posture of the containing member 90m recognized by the recognition unit 81 for a plurality of consecutive supply operations, the cavity 51 clogging of the housing member 90m can be determined. What has been described above with respect to the maintenance device 80 also applies to the maintenance method.

10: component mounting machine, 12: component supply device, 12a: slot, 30: bulk feeder,
34: track member, 50: cavity unit, 51: cavity, 70: parts case,
80: maintenance device, 81: recognition unit, 82: determination unit, 83: cancellation unit, 84: guide unit,
90m: accommodation member, 90a: center position, 90b: accommodation angle, 91: part, 92: foreign matter,
AR01: posture range, AR02: posture change amount, AR11: first posture range,
AR12: first attitude change amount, AR21: second attitude range, AR22: second attitude change amount,
Ar0: receiving area, As0: supply area, CU0: imaging device, Rd0: transport path.

Claims (14)

The parts are conveyed between a receiving area for receiving the parts ejected from a parts case containing the parts in bulk and supplied to the parts mounting machine and a supply area for picking up the parts for the parts mounting machine. a track member comprising a transport path that
a cavity unit including a plurality of cavities in the supply area in which one of the parts conveyed from the receiving area to the supply area by vibrating the track member is to be accommodated;
applied to bulk feeders with
a recognition unit that recognizes the posture of the housing member housed in the cavity in the cavity each time a supply operation for conveying the component from the reception area to the supply area is performed;
a determining unit that determines whether or not the containing member is clogged in the cavity based on the posture of the containing member recognized by the recognition unit for the continuous supply operation a plurality of times;
maintenance equipment. The recognizing unit causes an imaging device to image the cavity unit after the supply operation is performed, performs image processing on the image of the cavity unit captured by the imaging device, and determines the orientation of the housing member in the cavity. The maintenance device according to claim 1, which recognizes the A range of variations in center positions of the housing members housed in the same cavity during the plurality of continuous supply operations is defined as a first posture range, and the same cavity during the multiple continuous supply operations. When the range of variation in the accommodation angle of the accommodation member accommodated in is the second posture range, and at least one of the first posture range and the second posture range is the posture range,
The judging section determines whether the housing member is housed in the same cavity as compared with the posture range assumed in the case where the housing member is the component that can be picked up by the component mounting machine and is normally supplied to the cavity. 3. The maintenance device according to claim 1, wherein when the recognition unit acquires a recognition result in which the posture range of the housing member is narrow, it is determined that the housing member is clogged in the cavity. For the same cavity, the amount of change between the center position of the containing member recognized for the previous supply operation and the center position of the containing member recognized for the current supply operation is defined as a first posture change amount, and the same An amount of change between an accommodation angle of the accommodation member recognized for the previous supply operation and an accommodation angle of the accommodation member recognized for the current supply operation for the cavity is defined as a second attitude change amount, and the first attitude is When at least one of the change amount and the second posture change amount is the posture change amount,
The determination unit determines whether the accommodation member is accommodated in the same cavity as compared with the attitude change amount assumed in the case of the component normally supplied to the cavity that can be picked up by the component mounting machine. 2. It is determined that there is clogging of the containing member in the cavity when recognition results with small posture change amount of the containing member are continuously acquired by the recognizing unit a plurality of times. Item 3. The maintenance device according to item 2. 3 or claim 1, wherein the determination unit changes at least one of the number of times of the supply operation and a determination threshold used when determining whether or not the containing member is clogged, according to the type of the component. Item 5. The maintenance device according to item 4. 2. A clearing section that attempts to clear the clogging of the housing member when the judging section determines that the housing member is clogged and determines that maintenance of the cavity unit is necessary. The maintenance device according to any one of claims 1 to 5. The elimination unit vibrates the track member by increasing the vibration force applied to the track member compared to the case where the track member is vibrated during production of the substrate product, thereby preventing the clogging of the housing member. 7. The maintenance device of claim 6, which attempts to resolve. wherein the elimination section determines that maintenance of the cavity unit is necessary when the number of cavities determined by the determination section to have clogging of the housing member exceeds a predetermined allowable number. The maintenance device according to claim 6 or claim 7. 9. The maintenance according to any one of claims 6 to 8, wherein the elimination unit determines that maintenance of the cavity unit is necessary when the throughput of the component mounting machine becomes equal to or less than a predetermined threshold. Device. The maintenance device according to any one of claims 6 to 9, further comprising a guide section that guides maintenance of the cavity unit when the clogging of the containing member is not cleared by the clearing section. 11. The maintenance device according to claim 10, wherein the guide section guides the position of the cavity where the housing member is clogged in the cavity unit. The bulk feeder is mounted in a predetermined slot among a plurality of slots of a component feeding device of the component mounting machine,
12. The maintenance device according to claim 11, wherein the guide part also guides a position of a slot equipped with the bulk feeder requiring maintenance of the cavity unit. The maintenance device according to any one of claims 1 to 12, wherein the housing member includes the part fitted in the cavity or foreign matter remaining in the cavity. The parts are conveyed between a receiving area for receiving the parts ejected from a parts case containing the parts in bulk and supplied to the parts mounting machine and a supply area for picking up the parts for the parts mounting machine. a track member comprising a transport path that
a cavity unit including a plurality of cavities in the supply area in which one of the parts conveyed from the receiving area to the supply area by vibrating the track member is to be accommodated;
applied to bulk feeders with
a recognition step of recognizing the posture of the housing member housed in the cavity in the cavity each time a supply operation of conveying the component from the receiving area to the supply area is performed;
a determining step of determining whether or not the containing member is clogged in the cavity based on the orientation of the containing member recognized by the recognizing step for the continuous supply operation a plurality of times;
maintenance method.

Images