JP6493771B2 - Component mounting system, and method for identifying defect location of component mounting system - Google Patents

Description

  The present invention uses a head having a plurality of holding mechanisms that hold a nozzle that can move in the vertical direction and rotate in the circumferential direction, and mounts the component at a target angle at a target position on the substrate by sucking the component with the nozzle. The present invention relates to a component mounting system including a machine, an inspection device for inspecting an actual position and an actual angle of a mounted component, and a method for identifying a defect location of the component mounting system.

  Applying or printing cream solder on the board, mounting the parts, heating the board together with the parts, and soldering the wiring and parts provided on the board to prepare for the mounting board production A component mounter is a device that holds a component by suction with a nozzle and mounts the component at a target position on a substrate at a target angle. Recent component mounters include a so-called multi-nozzle head capable of moving a plurality of nozzles at once in order to efficiently mount components on a substrate and improve production efficiency. The plurality of nozzles are detachably attached to a plurality of holding mechanisms provided in the head. The holding mechanism includes a shaft member extending in the vertical direction, and a nozzle is attached to the lower end of the shaft member. The nozzle is moved in the vertical direction by moving the shaft member in the vertical direction with respect to the head. The nozzle can be rotated about the tube axis by rotating the shaft.

  The component mounting system may be provided with an inspection device that inspects an actual position and an actual angle of a component mounted on a board by a component mounting machine. The inspection apparatus is an apparatus that detects the position and angle of a component on a substrate on which the component is actually mounted using an image recognition technique or the like.

  In the component mounting system described above, if the detected actual position or actual angle deviates significantly from the target position or target angle, there may be a problem with the component mounter in the component mounting system. Therefore, it is necessary to identify the location where the problem occurs.

  For example, Patent Document 1 discloses a technique for inspecting a component held by a nozzle and determining that a defect has occurred in a component cassette that supplies the component to a component mounter based on the amount of deviation between the nozzle and the component. Have been described. Also, in Patent Document 2, the amount of deviation of components that have been sucked and held by nozzles is accumulated over time for each nozzle, and a problem occurs based on the chronological transition of the amount of deviation for each nozzle. Techniques for identifying the nozzles that are present are described.

  If the location where the failure occurs can be identified in this way, the operator can quickly take appropriate measures for the location where the failure has occurred, and feedback to the component mounter etc. It becomes possible to perform correction by software.

Japanese Patent Laid-Open No. 11-243300 JP 2013-33791 A

  However, the location that causes the shift is not limited to one location in the component mounting system. For example, when the deviation of a component held by the nozzle is inspected, it is unclear whether the nozzle has a defect, the component itself has a defect, or the component cassette that supplies the component has a defect. Further, if the time-series change of the deviation is analyzed, it can be distinguished whether the cause of the deviation is in the nozzle or the holding mechanism to which the nozzle is attached, but it takes time until the result is obtained.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a component mounting system that can identify a location that causes a component shift and a method for identifying a failure location of the component mounting system.

  In order to achieve the above object, a component mounting system according to the present invention includes a holding mechanism that holds a nozzle for sucking and holding a component so as to be movable in the vertical direction and rotatably holds a tube axis as a central axis. A plurality of heads, a component mounter for mounting the component on a substrate, and an inspection apparatus for inspecting the substrate on which the component is mounted by the component mounter, and acquiring actual angle information of the mounted component; A component mounting system comprising: a displacement information creation unit that creates displacement information for each of the components mounted on the substrate based on preset target angle information and the actual angle information; and a series of rotation drive mechanisms Deviation information corresponding to a plurality of the parts mounted on the substrate by the nozzle attached to any one of the holding mechanism groups that are a plurality of the holding mechanisms whose rotation is driven by A statistical processing unit that statistically processes to derive rotational drive mechanism related information; a determination unit that determines whether or not a malfunction has occurred in the rotational drive mechanism based on the rotational drive mechanism related information; and the determination unit When it is determined that a problem has occurred in the rotation drive mechanism, a notification unit for notifying the defect information indicating that is provided.

  According to this, although there is no tendency in the deviation information of the individual components mounted on the board, the rotation drive mechanism related derived based on the deviation information of the components mounted by a certain holding mechanism group When some kind of tendency is found in the information, it is possible to mechanically (software) to specify that some kind of malfunction has occurred in the rotational drive mechanism. Therefore, the maintenance can be urged by notifying the trouble location.

  The inspection apparatus further acquires actual position information of the mounted component, and the deviation information creation unit further acquires the component mounted on the board based on preset target position information and the actual position information. Deviation information is created for each, and the statistical processing unit further statistically processes deviation information corresponding to the plurality of parts mounted on a predetermined region of the board to derive board related information, and the determination The unit further determines whether or not a defect has occurred in the substrate based on the substrate related information, and the notification unit further determines that the determination unit has a defect in the substrate, You may notify the defect information which shows that.

  According to this, when a tendency is seen in the board-related information corresponding to a component mounted on a certain area of the board, it is possible to specify a board defect such as a board being warped.

  The statistical processing unit further statistically processes misalignment information corresponding to the plurality of components of the same type mounted on the board to derive component related information, and the determination unit further includes the component related information. And determining whether or not a defect has occurred in the part of the type based on the information, and when the determination unit determines that a defect has occurred in the part, the defect information indicating the fact May be notified.

  According to this, when a trend is found in the component-related information corresponding to the type of component, it is possible to specify a defect of the component such as the size of the supplied component being out of the standard.

  The component mounter includes a plurality of the heads, and the statistical processing unit further statistically processes misalignment information corresponding to the plurality of components mounted on the board by the same head, Information is derived, and the determination unit further determines whether or not a defect has occurred in the head based on the head related information, and the notification unit further includes a determination that the determination unit has a defect in the head. If it is determined that there is a failure, failure information indicating that may be notified.

  According to this, when mounting a component with a plurality of heads on a single substrate, if there is a tendency in the head related information corresponding to a certain head, the malfunction of the mechanism that drives the entire head is specified. It becomes possible.

  Furthermore, the holding mechanism related information derived by the statistical processing unit based on one board is accumulated over the plurality of boards, or the plurality of parts mounted by the holding mechanism included in the same holding mechanism group. The statistical processing unit further statistically stores the accumulated information on the plurality of holding mechanisms or the accumulated deviation information on the plurality of substrates. Processing to derive temporal information, and the determination unit further determines whether or not a failure has occurred in the holding mechanism based on the temporal information, and the notification unit further includes the determination unit When it is determined that a defect has occurred in the holding mechanism, defect information indicating that may be notified.

  According to this, it becomes possible to identify the malfunction of the holding mechanism that occurs when the solder paste gradually adheres to the filter provided in the holding mechanism.

  Further, when the problem can be resolved by software, feedback that creates correction information including information indicating the correction angle and the rotation drive mechanism in which the problem has occurred based on the deviation information and feeds back to the component mounter May be provided.

  According to this, it is possible to identify the occurrence location of the failure before the failure that causes the mounting board to become a defective product and appropriately perform feedback control, and to improve the yield of the component mounting system. Become.

  In addition, in order to achieve the above object, the method for identifying a fault location of a component mounting system according to the present invention is such that a nozzle for sucking and holding a component is held so as to be movable in the vertical direction and can be rotated about a tube axis as a central axis. A plurality of holding mechanisms for holding on a component, a component mounter for mounting the component on a substrate, and an inspection of the substrate on which the component is mounted by the component mounter, and an actual angle of the mounted component A failure location identification method that is applied to a component mounting system including an inspection device that acquires information and identifies a location where a failure occurs in the component mounting system, wherein preset target angle information and the actual angle A plurality of holding mechanisms whose rotation information is generated by a shift information generation unit for each of the components mounted on the board based on the information and whose rotation is driven by a series of rotation drive mechanisms; A statistical processing unit statistically processes deviation information corresponding to a plurality of the parts mounted on the substrate by the nozzle attached to any one of the holding mechanism groups to derive rotation drive mechanism related information, and the rotation When the determination unit determines whether or not a defect occurs in the rotational drive mechanism based on the drive mechanism related information, and when the determination unit determines that a defect occurs in the rotational drive mechanism, this is indicated. The notification unit notifies the defect information.

  According to this, although there is no tendency in the deviation information of the individual components mounted on the board, the rotation drive mechanism related derived based on the deviation information of the components mounted by a certain holding mechanism group When some kind of tendency is found in the information, it is possible to mechanically (software) to specify that some kind of malfunction has occurred in the rotational drive mechanism. Therefore, the maintenance can be urged by notifying the trouble location.

  Further, if the problem can be resolved by software, the correction information including the correction angle and information indicating the rotation drive mechanism in which the problem has occurred is created based on the deviation information, and a feedback unit is provided in the component mounter. Feedback may be provided.

  According to this, it is possible to identify the occurrence location of the failure before the failure that causes the mounting board to become a defective product and appropriately perform feedback control, and to improve the yield of the component mounting system. Become.

  In addition, executing the program for making a computer perform each process which the malfunction location identification method of the said component mounting system includes also corresponds to implementation of this invention. Of course, implementing the recording medium in which the program is recorded also corresponds to the implementation of the present invention.

  According to the present invention, it is possible to accurately identify the location that causes the deviation information. Therefore, an operator or the like can quickly take an appropriate measure, perform an appropriate feedback process, prevent a reduction in the production efficiency of the mounting board, and improve the yield.

FIG. 1 is a diagram schematically showing a component mounting system. FIG. 2 is a perspective view schematically showing the component mounting machine. FIG. 3 is a perspective view schematically showing the head. FIG. 4 is a plan view schematically showing the holding mechanism and the rotation driving mechanism provided in the head from above. FIG. 5 is a block diagram illustrating a processing unit included in the host computer. FIG. 6 is a plan view virtually showing a target position and a target angle for mounting components on the board. FIG. 7 is a plan view virtually showing the actual position and actual angle of the component mounted on the board together with the target position and target angle. FIG. 8 is a diagram visually illustrating the mounting conditions. FIG. 9 is a diagram visually illustrating the actual angle information, the actual position information, and the shift information created by the shift information creation unit acquired by the inspection apparatus. FIG. 10 is a plan view schematically showing the area of the substrate and the components included in the area. FIG. 11 is a perspective view schematically showing another embodiment of a component mounting machine including two heads and two head moving devices. FIG. 12 is a graph visually showing the result processed by the statistical processing unit. FIG. 13 is a graph visually showing the results processed by the statistical processing unit. FIG. 14 is a diagram illustrating a process of identifying a defect location in the component mounting system.

  Next, an embodiment of a component mounting system according to the present invention and a method for identifying a defect location of the component mounting system will be described with reference to the drawings. The following embodiment is merely an example of the component mounting system according to the present invention and a method for identifying a defect location of the component mounting system. Accordingly, the scope of the present invention is defined by the wording of the claims with reference to the following embodiments, and is not limited to the following embodiments. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept of the present invention are not necessarily required to achieve the object of the present invention. It will be described as constituting a preferred form.

  FIG. 1 is a diagram schematically showing a component mounting system.

  As shown in the figure, the component mounting system 100 is a system for producing a mounting substrate 210 by mounting a component 201 on a substrate 200. In the case of the present embodiment, the component mounting system 100 includes a solder coating machine 101, two component mounting machines 102, an inspection device 104, a reflow furnace 105, and a host computer 106 inline in the description order. ing. The component mounter 102 includes a conveyor 107 that conveys the board 200. The solder application machine 101, the component mounting machine 102, the inspection apparatus 104, and the reflow furnace 105 can exchange information with the host computer 106, and can mutually communicate with each other via the host computer 106. Information can also be exchanged.

  The solder application machine 101 is an apparatus that applies (adheres) cream solder that electrically and mechanically connects the substrate 200 and the component 201 to the substrate 200. In the case of the present embodiment, the solder applicator 101 is an apparatus that prints a cream solder pattern on the upper surface of the substrate 200 carried by the conveyor 107. Specifically, the solder applicator 101 contacts a mask (not shown) having an opening corresponding to a desired cream solder pattern with the substrate 200, and supplies the cream solder (not shown) on the mask. In this apparatus, a so-called screen printing technique for transferring a cream solder pattern onto the substrate 200 by sliding a squeegee (not shown) on the mask is applied.

  FIG. 2 is a perspective view schematically showing the component mounting machine.

  As shown in the figure, the component mounting machine 102 mounts the component 201 on the substrate 200, a holding step for sucking and holding the component 201 in the component supply unit 137, a transporting step for transporting the component 201 above the substrate 200, and the substrate 200. An apparatus for mounting the component 201 on the substrate 200 by repeating the mounting process including the mounting process, and includes a head 120, a head moving device 125, and a component supply unit 137.

  FIG. 3 is a perspective view schematically showing the head.

  FIG. 4 is a plan view schematically showing the holding mechanism and the rotation driving mechanism provided in the head from above.

  As shown in these drawings, the head 120 is movable in the vertical direction with respect to the head 120 and rotated in the circumferential direction. The holding mechanism 122 holds the nozzle 121 and the rotation of the plurality of holding mechanisms 122 (θ direction, 3 and 4) at a time. The head 120 is also provided with a vertical drive mechanism 124 that drives the holding mechanism 122 in the vertical direction (Z-axis direction in the drawing).

  In the case of the present embodiment, for example, the holding mechanism 122 includes a tubular outer shaft attached to the head 120 and a tubular inner shaft disposed inside the outer shaft. The inner shaft is provided so as to be movable up and down with respect to the outer shaft and to be rotatable in a circumferential direction (θ direction) around the tube axis (Z axis in the figure), and is connected to the rotation drive mechanism 123. Further, the hollow portion of the inner shaft functions as an adsorption conduit for guiding a negative pressure (vacuum) for adsorbing the component 201.

  A nozzle 121 is attached to the lower end of the inner shaft via a nozzle holder, and the holding mechanism 122 can move the nozzle 121 in the vertical direction (Z-axis direction) and can rotate in the rotation direction (θ direction). It is meant to be retained. The nozzle 121 is supplied with a negative pressure (vacuum) that holds the component 201 via the holding mechanism 122.

  Note that a filter that suppresses suction of dust and the like is provided in the suction pipe of the holding mechanism 122.

  In the case of the present embodiment, eight holding mechanisms 122 are attached to the head 120 in a straight line in the X-axis direction, and two rows of the holding mechanisms 122 are attached in the Y-axis direction. Accordingly, the head 120 includes a total of 16 holding mechanisms 122 in two columns and eight rows.

  The rotation drive mechanism 123 is a mechanism for rotating the plurality of holding mechanisms 122 at a time, and includes a drive source 131 and a transmission member 132. In the case of the present embodiment, the drive source 131 is a servomotor that can arbitrarily control the rotation angle and the rotation direction, and the transmission member 132 is a timing belt. The rotational drive mechanism 123 includes pulleys 133 for guiding the transmission member 132 at a plurality of locations. The rotation drive mechanism 123 is not limited to a servo motor, a timing belt, and a pulley, and any mechanism such as a rack and pinion mechanism and a motor can be adopted.

  In the case of the present embodiment, the rotation drive mechanism 123 uses, as one holding mechanism group, holding mechanisms 122 arranged in two columns and four rows, for example, half of all holding mechanisms 122, and the holding mechanisms included in one holding mechanism group. 122 is rotated at a time. Specifically, one timing belt that is the transmission member 132 is connected to all the holding mechanisms 122 included in the holding mechanism group via a plurality of pulleys, and is also connected to a servo motor that is the drive source 131. ing. Accordingly, when the drive source 131 is driven to rotate, the transmission member 132 is driven and all the holding mechanisms 122 included in the holding mechanism group are rotated.

  The head 120 includes a plurality of rotation driving mechanisms 123 and a plurality of holding mechanism groups corresponding to the rotation driving mechanisms 123. In the case of the present embodiment, the head 120 is provided with two rotation drive mechanisms 123, and each rotation drive mechanism 123 holds two columns and four rows corresponding to half of the holding mechanism 122 provided with two columns and eight rows. The mechanism 122 can be rotated at a time. Therefore, the head 120 is provided with two holding mechanism groups.

  The head moving device 125 is a device that moves the head 120 to perform the mounting process. In the case of the present embodiment, the head moving device 125 is an XY robot, and can move the head 120 freely on a plane parallel to the substrate 200. Specifically, an X beam 138 that guides the head 120 so as to reciprocate in the X axis direction and an X beam 138 that extends in the Y axis direction and extends in the X axis direction reciprocate in the Y axis direction. A Y beam 139 that is movably guided, a drive source (not shown) that moves the head 120 along the X beam 138, and a drive source (not shown) that translates the X beam 138 along the Y beam 139. And are provided.

  The component supply unit 137 is a portion to which a plurality of tape feeders 136 and the like are detachably provided, and various components 201 are supplied by the tape feeder 136 and the like. The tape feeder 136 is a device that sequentially supplies the components 201 arranged and held on the tape to the component supply unit 137.

  The inspection apparatus 104 is an apparatus that inspects the board 200 on which the component 201 is mounted by the component mounting machine 102 and acquires actual angle information of the mounted component 201. In the case of the present embodiment, the inspection apparatus 104 also acquires actual position information of parts. The inspection apparatus 104 is not particularly limited. For example, the actual position of each component 201 is based on an image obtained by photographing the substrate 200 using a camera that can freely move along the surface of the substrate 200. Information that obtains information and real angle information can be listed. In addition, the acquisition method of real position information and real angle information is not limited to image recognition by a camera.

  The reflow furnace 105 is a heating furnace for heating the substrate 200 on which the component 201 is mounted and melting the cream solder applied on the surface of the substrate 200 by the solder application machine 101.

  The conveyor 107 is a device that conveys the substrate 200. In the case of the present embodiment, the conveyor 107 is formed by two belt conveyors that sandwich two opposing edge portions on which the component 201 of the substrate 200 is not mounted.

  The host computer 106 is a computer that is connected to the solder application machine 101, the component mounting machine 102, the inspection apparatus 104, etc., exchanges information and controls the entire component mounting system 100.

  FIG. 5 is a block diagram illustrating a processing unit included in the host computer.

  As shown in the figure, in the case of the present embodiment, the host computer 106 includes a deviation information creation unit 161, a statistical processing unit 162, a determination unit 163, and a notification as a processing unit that functions by executing software. Part 164. Furthermore, the host computer 106 includes a storage unit 165 that stores deviation information and other information together with time-lapse information, and a feedback unit 167.

  The deviation information creation unit 161 is a processing unit that creates deviation information including an angle deviation amount for each component 201 mounted on the substrate 200 based on the actual angle information acquired from the inspection apparatus 104 and preset target angle information. is there. In the case of the present embodiment, the displacement information creation unit 161 includes a displacement amount for each component 201 mounted on the substrate 200 based on the actual position information acquired from the inspection apparatus 104 and preset target position information. Create information.

  Here, the target position information represents the position where the component 201 should be mounted from the reference position on the substrate 200 in two-dimensional coordinates. The target angle information represents the orientation of the component 201 to which the component 201 mounted at the target position is to be mounted.

  In the case of the present embodiment, as shown in FIG. 6, the reference position is a mark O written on the surface of the substrate 200, and the target position information P <b> 0 is the X axis along the long side of the substrate 200. The axis along the short side (which may be different from the X axis in the component mounter 102) is expressed using the Y axis (which may be different from the Y axis in the component mounter 102). Further, the target angle information θ0 is an angle formed with respect to the X axis by an axis virtually determined for the component 201 (for example, in the case of the rectangular component 201, an axis passing through the center of the component 201 along the short side of the component 201). It is expressed using.

  Further, the deviation information is information including a difference between the target angle information and the actual angle information, and further includes a difference between the target position information and the actual position information in the case of the present embodiment. Specifically, as shown in FIG. 7, the shift information is Δθ that is an angle shift amount or (Δx, Δy) that is a position shift amount.

  Specifically, the deviation information creation unit 161 obtains target angle information and target position information from the mounting conditions as shown in FIG. 8, and the actual angle information obtained from the inspection apparatus 104 as shown in FIG. Compared with the actual position information, the difference of each component 201 is calculated as deviation information.

  Further, in the case of the present embodiment, the deviation information creation unit 161 displays the identification information of the holding mechanism 122 corresponding to the deviation information based on the mounting conditions, the information related to the type of the component 201, the identification information of the nozzle 121, and the like. Misalignment information is created by linking.

  The statistical processing unit 162 statistically processes misalignment information corresponding to the plurality of components 201 mounted on the substrate 200 by the nozzle 121 attached to any of the holding mechanisms 122 included in the holding mechanism group, and relates to the rotational drive mechanism. A processing unit for deriving information.

  For example, the statistical processing unit 162 extracts deviation information associated with identification information for identifying the holding mechanism 122 included in the same holding mechanism group from a plurality of deviation information on the same substrate 200, and A value representing a variation such as a standard deviation, a representative value such as an average value, and the like are calculated as rotation drive mechanism related information.

  Further, the statistical processing unit 162 may extract deviation information corresponding to a plurality of components 201 mounted on a predetermined region of the substrate 200, and statistically process the derived information to derive substrate related information. For example, as shown in FIG. 10, even if the board related information is derived from the shift information corresponding to the component 201 mounted on the area on the positive side in the Y-axis direction of the board 200 (the area surrounded by the two-dot chain line in the figure). Good.

  In addition, component-related information may be derived by statistically processing deviation information corresponding to a plurality of components 201 of the same type mounted on the board 200. For example, deviation information associated with the same type of component may be extracted and statistically processed to obtain component-related information. The types of parts may include information such as differences in manufacturers and differences in lots.

  As shown in FIG. 11, when the component mounter 102 includes a plurality of heads 120, the statistical processing unit 162 shifts corresponding to the plurality of components 201 mounted on the substrate 200 by the same head 120. The information may be statistically processed to derive head related information. For example, deviation information associated with identification information for identifying the holding mechanism 122 attached to one head 120 may be extracted and statistically processed to derive head related information.

  The determination unit 163 is a processing unit that determines which of the rotational drive mechanisms 123 has a defect based on the rotational drive mechanism related information derived by the statistical processing unit 162.

  In the case of the present embodiment, when the representative value of the rotational drive mechanism related information corresponding to a certain rotational drive mechanism 123 is deviated by a threshold value ± L1 or more as visually shown in FIG. It is determined that a failure has occurred in the mechanism 123.

  Further, the determination unit 163 may determine whether or not a defect has occurred in the substrate 200 based on the substrate related information. For example, the representative value of Δy is shown in FIG. 13 in the board-related information corresponding to the component 201 mounted on the Y-axis direction positive half area (the area surrounded by the two-dot chain line in the figure) of the board 200 shown in FIG. As shown, when it deviates to the threshold value ± L2 or more, it may be determined that the problem that the substrate 200 is warped in the YZ plane has occurred.

  Further, the determination unit 163 may determine whether or not a defect has occurred in the component based on the component related information, and may determine whether or not a defect has occurred in the head based on the head related information. .

  When the determination unit 163 determines that a problem has occurred in the rotation drive mechanism 123, the notification unit 164 is a processing unit that notifies defect information indicating the fact.

  Here, the defect information is exchanged with information indicating the rotation drive mechanism 123 corresponding to the display device 166 when the defect is resolved by human power such as an operator, for example, when the transmission member 132 is deteriorated and needs to be replaced. Information including information indicating that is necessary.

  The accumulating unit 165 accumulates the holding mechanism related information derived by the statistical processing unit 162 based on one substrate 200 over the plurality of substrates 200, or a plurality of units mounted by the holding mechanisms 122 included in the same holding mechanism group. This is an apparatus for accumulating misalignment information corresponding to the component 201 for the plurality of substrates.

  As described above, when the storage unit 165 is provided, the statistical processing unit 162 further statistically processes the accumulated information on the plurality of holding mechanisms or the misalignment information accumulated on the plurality of substrates 200, and performs time-lapse processing. Information can be derived. Further, the determination unit 163 can determine whether or not a failure has occurred in the holding mechanism based on the time-lapse information, and the notification unit 164 can notify that fact.

  Specifically, for example, when the shift amount of a specific holding mechanism gradually increases due to the time-dependent information, it can be determined and notified that the filter provided in the holding mechanism 122 has become clogged.

  When the determination unit 163 determines that a problem has occurred, the feedback unit 167 determines whether or not the problem can be solved by software, and can solve the problem by software. If possible, the correction information including the correction information including the correction angle and the information indicating the rotation drive mechanism 123 in which the defect occurred is generated based on the shift information or the rotation drive mechanism related information derived from the shift information. It is a processing unit that feeds back to the component mounting machine 102.

  For example, the feedback unit 167 determines that the problem can be solved by software when the variation is within a predetermined range based on the rotation drive mechanism related information, and the representative value of the rotation drive mechanism related information and the target angle information And the rotation drive mechanism 123 corresponding to the rotation drive mechanism related information are created as correction information and fed back to the component mounter 102. The component mounter 102 that has received the correction information corrects the mounting condition and the like related to the corresponding rotation drive mechanism 123.

  The feedback unit 167 not only creates correction information for correcting the angle deviation and feeds it back to the rotation drive mechanism 123 of the component mounter 102, but also provides correction information for correcting the deviation in the X direction and the Y direction. It may be created and fed back to the head moving device 125 of the component mounting machine 102. Furthermore, the feedback unit 167 may feed back not only to the component mounter 102 but also to any of the component mounting systems 100.

  Next, a method for identifying a defect location in the component mounting system will be described.

  FIG. 14 is a diagram illustrating a process of identifying a defect location in the component mounting system.

  First, the information creation unit 161 acquires preset target angle information from the host computer (S101). The target angle information may be acquired by the information creating unit 161 from, for example, NC data of mounting conditions. Next, the deviation information creation unit 161 acquires actual angle information from the inspection apparatus (S102). Next, the deviation information creation unit 161 creates deviation information for each component 201 mounted on the board 200 based on the target angle information and the actual angle information (S103).

  Next, the statistical processing unit 162 extracts deviation information corresponding to one (focused) holding mechanism group (S104), and statistically processes the information to derive rotational drive mechanism related information (S105).

  Next, the determination unit 163 determines whether or not a failure has occurred in the rotation drive mechanism 123 based on the rotation drive mechanism related information (S106).

  Next, when the determination unit 163 determines that a problem has occurred in the rotation drive mechanism 123 (S106Y), in the case of the present embodiment, whether the feedback unit 167 can solve the problem in software, that is, It is determined whether or not feedback is possible (S107), and when it is determined that feedback is not possible (S107: N), the notification unit 164 notifies failure information indicating that (S108).

  On the other hand, when it is determined that the feedback is possible (S107: Y), the correction angle which is information necessary for correction based on the deviation information or the rotation drive mechanism related information derived from the deviation information, and the rotation drive mechanism 123 in which a defect has occurred. The correction information including the information indicating is generated and fed back to the component mounter 102 (S109).

  In addition, if these steps are repeated for a plurality of rotation drive mechanisms 123 (a plurality of holding mechanism groups), a defective portion can be specified in detail.

  Moreover, although the aspect which does not perform notification (S108) when the feedback part 167 performed feedback (S109) was demonstrated, you may perform notification (S108) with feedback (S109).

  In addition, this invention is not limited to the said embodiment. For example, another embodiment realized by arbitrarily combining the components described in this specification and excluding some of the components may be used as an embodiment of the present invention. In addition, the present invention includes modifications obtained by making various modifications conceivable by those skilled in the art without departing from the gist of the present invention, that is, the meaning described in the claims. It is.

  For example, the information derived by the statistical processing unit 162 is not limited to the above, and the deviation information created by the deviation information creation unit 161 is grouped based on some information, and the deviation information included in the group is statistically calculated. It does not exclude the use of other information to process. For example, as in the component mounting system 100 according to the present embodiment, when a plurality of component mounters 102 are provided and components are mounted on a single board 200 by the plurality of component mounters 102, the component mounter 102 is identified. It is also possible to use the identification information to group the deviation information and perform statistical processing to identify a failure occurring in any of the component mounting machines 102.

  In addition, the method for identifying the defective part of the component mounting system can use not only the rotation drive mechanism related information but also the substrate related information, the component related information, the head related information, and the time-dependent information. It is possible to specify various trouble spots by changing the information to be used.

  Further, the deviation information creation unit 161, the statistical processing unit 162, the determination unit 163, and the notification unit 164 are not limited to those that cause the host computer 106 to function, and in any device provided in the component mounting system 100. It doesn't matter if it works.

  The present invention can be used in a mounting system for mounting components on a substrate.

DESCRIPTION OF SYMBOLS 100 Component mounting system 101 Solder application machine 102 Component mounting machine 104 Inspection apparatus 105 Reflow furnace 106 Host computer 107 Conveyor 120 Head 121 Nozzle 122 Holding mechanism 123 Rotation drive mechanism 124 Vertical drive mechanism 125 Head moving device 131 Drive source 132 Transmission member 133 Pulley 136 Tape Feeder 137 Component Supply Unit 138 X Beam 139 Y Beam 161 Deviation Information Creation Unit 162 Statistical Processing Unit 163 Determination Unit 164 Notification Unit 165 Storage Unit 166 Display Unit 167 Feedback Unit 200 Board 201 Component 210 Mounting Board

Claims (9)

A plurality of holding mechanisms that hold the nozzle for sucking and holding the component so as to be movable in the vertical direction and that can be rotated about the tube axis as a central axis, and a rotation drive mechanism that drives the rotation of the plurality of holding mechanisms at a time A component mounter that mounts the component on a substrate, and an inspection that acquires the actual angle information of the mounted component by inspecting the substrate on which the component is mounted by the component mounter A component mounting system comprising a device,
A deviation information creating unit that creates deviation information for each of the components mounted on the board based on preset target angle information and the actual angle information;
Deviation information corresponding to a plurality of components mounted on the substrate by the nozzle attached to any one of a plurality of holding mechanisms which are a plurality of the holding mechanisms whose rotation is driven at a time by the rotation driving mechanism. A statistical processing unit that extracts based on identification information that identifies the holding mechanism included in the group, statistically processes the extracted deviation information, and derives rotational drive mechanism related information;
A determination unit that determines whether or not a malfunction occurs in the rotation drive mechanism based on the rotation drive mechanism related information;
When the determination unit determines that a problem has occurred in the rotation drive mechanism, the component mounter creates correction information including information indicating the correction angle and the rotation drive mechanism in which the problem has occurred based on the deviation information. A component mounting system comprising a feedback unit for feeding back to The inspection apparatus further includes:
Obtain the actual position information of the mounted parts,
The deviation information creation unit further includes
Create deviation information for each of the components mounted on the board based on the preset target position information and the actual position information,
The statistical processing unit further includes:
Statistically processing deviation information corresponding to a plurality of the parts mounted on a predetermined area of the board to derive board related information,
The determination unit further includes:
Determine whether or not a defect has occurred in the substrate based on the substrate related information,
The component mounting system according to claim 1 , further comprising a notifying unit that notifies the defect information indicating that when the determining unit determines that a defect has occurred in the board . The statistical processing unit further includes:
Statistically processing misalignment information corresponding to a plurality of the same type of components mounted on the board to derive component related information,
The determination unit further includes:
Determining whether a defect has occurred in the type of the component based on the component-related information;
Wherein when the determination unit determines that the failure occurs in the component, the component mounting system according to <br/> claim 1 or 2 further comprising a notification unit that notifies the defect information indicating that effect. The component mounting machine includes a plurality of the heads,
The statistical processing unit further includes:
Statistically processing deviation information corresponding to a plurality of the parts mounted on the substrate by the same head to derive head related information,
The determination unit further includes:
It is determined whether or not a defect has occurred in the head based on the head related information,
The feedback unit further includes
When the determination unit determines that a defect has occurred in the head, correction information including information indicating the correction angle and the rotation drive mechanism in which the defect has occurred is generated based on the deviation information and fed back to the component mounter The component mounting system according to claim 1 or 2. further,
The holding mechanism related information derived by the statistical processing unit based on one of the substrates is accumulated across the plurality of substrates, or corresponds to the plurality of parts mounted by the holding mechanisms included in the same holding mechanism group. An accumulator that accumulates misalignment information for the plurality of substrates,
The statistical processing unit further includes:
Statistical processing of the accumulated information related to the plurality of holding mechanisms or the accumulated deviation information for the plurality of substrates to derive temporal information,
The determination unit further includes:
It is determined whether or not a malfunction occurs in the holding mechanism based on the time-lapse information,
The feedback unit further includes
When the determination unit determines that a defect has occurred in the holding mechanism, the correction unit creates correction information including information indicating the correction angle and the rotation drive mechanism in which the defect has occurred based on the deviation information, and The component mounting system according to claim 1 that feeds back. further,
The component mounting system according to claim 1, further comprising: a notification unit that notifies defect information indicating the fact when the defect cannot be resolved by software. The deviation information creation unit
The component mounting system according to any one of claims 1 to 6, wherein deviation information is created by linking identification information of the holding mechanism corresponding to previous deviation information based on a mounting condition. A plurality of holding mechanisms that hold the nozzle for sucking and holding the component so as to be movable in the vertical direction and that can be rotated about the tube axis as a central axis, and a rotation drive mechanism that drives the rotation of the plurality of holding mechanisms at a time A component mounter that mounts the component on a substrate, and an inspection that acquires the actual angle information of the mounted component by inspecting the substrate on which the component is mounted by the component mounter It is applied to a component mounting system comprising an apparatus, and is a defect location identifying method for identifying a location where a malfunction of the component mounting system occurs,
The deviation information creation unit creates deviation information for each of the components mounted on the board based on the target angle information set in advance and the actual angle information,
A statistical processing unit displays deviation information corresponding to the plurality of components mounted on the substrate by the nozzle attached to any one of the holding mechanism groups that are a plurality of the holding mechanisms whose rotation is driven at a time by the rotation driving mechanism. Is extracted based on identification information for identifying that the holding mechanism is included in the holding mechanism group, statistically processing the extracted deviation information to derive rotational drive mechanism related information,
The determination unit determines whether or not a malfunction occurs in the rotation drive mechanism based on the rotation drive mechanism related information,
When the determination unit determines that a problem has occurred in the rotation drive mechanism, the component mounter creates correction information including information indicating the correction angle and the rotation drive mechanism in which the problem has occurred based on the deviation information. How to identify faulty parts in a component mounting system that feeds back. further,
9. The method of identifying a defect location in a component mounting system according to claim 8, wherein if the defect cannot be resolved by software, defect information indicating that fact is notified.

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