Backup pin arrangement correction device, component mounting machine, backup pin arrangement correction method, backup pin arrangement correction program, and recording medium

Abstract

To appropriately respond to the occurrence of misalignment of a component mounted on a board and suppress the misalignment of the component.SOLUTION: Mounting position data Dm (first position information) indicating the positional relationship between a mounting position 21A (first mounting position) and a component 3A (first component) mounted by a component mounter 4 on the mounting position 21A of a board 2 is acquired (step S101), and the occurrence of positional deviation of the component 3A with respect to the mounting position 21A is determined on the basis of the mounting position data Dm (step S103). Then, on the basis of the determination result based on the mounting position data Dm, the arrangement of backup pins 7 with respect to the mounting position 21A is corrected (step S108).SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to a technique for correcting the positions of backup pins that are arranged on a component mounter to support a board on which components are mounted. [Background technology]

[0002] Backup pins are used to support the board on which a component mounter mounts components. These backup pins abut against the board from below, supporting the board against the load applied to the board as components are mounted. Patent documents 1 and 2 propose techniques for determining the placement of backup pins. That is, Patent document 1 displays pin holes for placing support pins (backup pins) and the components to be mounted on the board in an overlapping manner, making it possible to edit the display so that the pin holes are placed below the components. Patent document 2 places backup pins for components that require high-precision mounting. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-124508 A [Patent Document 2] JP 2010-062591 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the backup pin placement, which was determined before mounting the component on the board, was inappropriate, there were cases where the mounted component was misaligned with the mounting location (e.g., a land) on the board.

[0005] The present invention has been made in consideration of the above-mentioned problems, and has an object to make it possible to appropriately respond to the occurrence of misalignment of a component mounted on a board and to suppress the misalignment of the component. [Means for solving the problem]

[0006] The backup pin placement correction device according to the present invention includes an information acquisition unit that acquires first position information indicating a positional relationship between a first component mounted at a first mounting location on a board by a component mounter that mounts a component at a mounting location on a board supported by a backup pin and the first mounting location, a position shift determination unit that determines whether a position shift has occurred between the first component and the first mounting location based on the first position information, and a placement correction unit that corrects the placement of the backup pin with respect to the first mounting location in accordance with a result of the determination made by the position shift determination unit based on the first position information.

[0007] A component mounter according to the present invention includes the backup pin arrangement correction device described above, and a head unit that mounts components on a board supported by the backup pins.

[0008] A backup pin placement correction method according to the present invention includes the steps of: acquiring first position information indicating a positional relationship between a first component mounted at a first mounting location on a board by a component mounter that mounts a component at a mounting location on a board supported by a backup pin; determining whether a positional deviation of the first component has occurred with respect to the first mounting location based on the first position information; and correcting the placement of the backup pin with respect to the first mounting location in accordance with a result of the determination based on the first position information.

[0009] A backup pin placement correction program according to the present invention causes a computer to execute the backup pin placement correction method described above.

[0010] A recording medium according to the present invention records the above-mentioned backup pin arrangement correction program in a computer-readable manner.

[0011] In the present invention (backup pin arrangement correction device, component mounter, backup pin arrangement correction method, backup pin arrangement correction program, and recording medium) configured in this manner, first position information is acquired that indicates the positional relationship between a first component mounted at a first mounting location on a board by the component mounter and the first mounting location, and the occurrence of misalignment of the first component with respect to the first mounting location is determined based on this first position information. Then, the arrangement of the backup pins with respect to the first mounting location is corrected according to the determination result based on the first position information. As a result, when misalignment of a component mounted on the board occurs, it is possible to appropriately respond and suppress the misalignment of the component.

[0012] Incidentally, the correction of the arrangement of the backup pins may be performed by changing the positions of the backup pins that have already been placed, or may be performed by placing new backup pins.

[0013] The backup pin placement correction device may further include a threshold setting unit that accepts a user's setting of a threshold for determining the occurrence of misalignment, and the misalignment determination unit determines that misalignment of the first component with respect to the first mounting location has occurred if the amount of misalignment between the first mounting location and the first component indicated by the first position information is equal to or greater than the threshold, and determines that misalignment of the first component with respect to the first mounting location has not occurred if the amount of misalignment is less than the threshold. In this configuration, the user can adjust the frequency of execution of backup pin placement correction by setting the threshold. As a result, backup pin placement correction can be executed at a frequency that meets the needs of the user.

[0014] The backup pin placement correction device may be configured such that the placement correction unit counts the number of occurrences of positional deviation of the first component with respect to the first mounting location, which is indicated by the determination result based on the first position information by the position deviation determination unit, and corrects the placement of the backup pin when the count value of the number of occurrences reaches N or more (N is an integer of 2 or more). With such a configuration, it is possible to prevent the placement of the backup pin from being corrected due to an accidental position deviation.

[0015] The backup pin placement correction device may be configured such that the placement correction unit does not count a positional deviation of the first component with respect to the first mounting location that occurs when the situation in which the first component is mounted on the first mounting location is a predetermined situation, but counts a positional deviation of the first component with respect to the first mounting location that occurs when the situation in which the first component is mounted on the first mounting location is not a predetermined situation. In other words, in a situation such as immediately after a change in the lot or type of the board, there is a high possibility that a positional deviation of the component will occur due to a factor other than the appropriateness of the placement of the backup pin. In contrast, by configuring as described above, it is possible to eliminate the influence of a positional deviation that occurs in such a situation and appropriately perform placement correction of the backup pin.

[0016] The backup pin arrangement correction device may be configured to further include a user interface that accepts a user's input operation for inputting whether or not the arrangement of the backup pins needs to be corrected, and the arrangement correction unit may be configured to inquire of the user through the user interface whether or not the arrangement of the backup pins needs to be corrected according to the determination result of the positional deviation determination unit, correct the arrangement of the backup pins when it is input to the user interface that correction is necessary, and not correct the arrangement of the backup pins when it is input to the user interface that correction is not necessary. With this configuration, the correction of the arrangement of the backup pins can be performed at a timing according to the needs of the user.

[0017] The backup pin position correction device may be configured such that the user interface receives an automatic execution command for correcting the position of the backup pin, and the position correction unit corrects the position of the backup pin according to the determination result of the position deviation determination unit when the automatic execution command is input to the user interface, without inquiring of the user as to whether or not the position of the backup pin needs to be corrected. With such a configuration, the correction of the position of the backup pin can be executed without requiring the user's effort.

[0018] The backup pin arrangement correction device may be configured so that the arrangement correction unit corrects the arrangement of the backup pins by changing the position of the backup pin closest to the first mounting location. In this configuration, it is possible to reduce the time required for setting and thinking about which backup pin to change its position.

[0019] The backup pin arrangement correction device may be configured such that the arrangement correction unit corrects the arrangement of the backup pin by changing the position of the backup pin so as to bring the backup pin closer to the first mounting location. Such a configuration is advantageous in suppressing misalignment of the component that occurs at the first mounting location.

[0020] The backup pin position correction device may be configured such that the position correction unit changes the position of the backup pin so that the backup pin faces the center of the first mounting location. With this configuration, it is possible to accurately suppress misalignment of the component that occurs at the first mounting location.

[0021] The backup pin placement correction device may be configured such that the placement correction unit changes the position of the backup pin from the initial position to a primary correction position closer to the first mounting location than the initial position, the information acquisition unit acquires second position information indicating a positional relationship between a second component mounted at a second mounting location different from the first mounting location after the backup pin is placed at the primary correction position of the component mounter and the second mounting location, the position shift determination unit determines the occurrence of a position shift of the second component with respect to the second mounting location based on the second position information, and the placement correction unit changes the position of the backup pin from the primary correction position to a secondary correction position closer to the second mounting location than the primary correction position in accordance with the determination result based on the second position information by the position shift determination unit. With such a configuration, when a position shift of a component occurs at the second mounting location due to the influence of the placement correction of the backup pin with respect to the first mounting location, it is possible to appropriately respond to the case where the position shift of the component occurs at the second mounting location, and to suppress the position shift of the component at the second mounting location.

[0022] The backup pin placement correction device may be configured such that, when the backup pin at the initial position is included among the three backup pins that are first to third closest to the second mounting location before the change from the initial position to the primary corrected position, the placement correction unit changes the position of the backup pin at the primary corrected position to the secondary corrected position, but when the backup pin at the initial position is not included among the three backup pins, the position of the backup pin at the primary corrected position is not changed. With such a configuration, it is possible to prevent the placement of the backup pin from being unnecessarily corrected in response to a positional deviation of a component at the second mounting location that occurs in a situation where the effect of the placement correction of the backup pin with respect to the first mounting location is assumed to be small.

[0023] The backup pin placement correction device may be configured so that the secondary corrected position is closer to the initial position than the primary corrected position, thereby making it possible to prevent misalignment of the component at the second mounting location.

[0024] The backup pin placement correction device may be configured so that the secondary corrected position is an intermediate position between the primary corrected position and the initial position, thereby making it possible to suppress misalignment of the component at the second mounting location.

[0025] Furthermore, the backup pin placement correction device may be configured such that, if the backup pin cannot be placed at a position halfway between the primary correction position and the initial position, the placement correction unit sets the position closest to the intermediate position among the positions at which the backup pin can be placed as the secondary correction position, thereby making it possible to suppress misalignment of the component at the second mounting location.

[0026] The backup pin placement correction device may be configured to further include a notification unit that notifies a user, the information acquisition unit acquires corrected position information indicating a positional relationship between the first mounting location and a first component mounted on the first mounting location after placing the backup pin in the component mounter in response to correction of the placement of the backup pin relative to the first mounting location, the position deviation determination unit determines whether or not a position deviation of the first component relative to the first mounting location has occurred based on the corrected position information, and the placement correction unit causes the notification unit to execute a notification based on the determination result based on the corrected position information by the position deviation determination unit. With such a configuration, it is possible to appropriately respond when a position deviation of a component has occurred due to a factor other than the placement of the backup pin. Effect of the Invention

[0027] As described above, according to the present invention, when a positional deviation of a component mounted on a board occurs, it is possible to appropriately respond and suppress the positional deviation of the component. [Brief description of the drawings]

[0028] [Figure 1] 1 is a diagram showing a component mounting system including a component mounter according to the present invention; [Diagram 2] FIG. 2 is a plan view showing a component mounter. [Diagram 3] 2 is a diagram showing a schematic configuration and operation of a backup mechanism provided in the component mounter; [Figure 4] FIG. 13 is a perspective view showing a state in which a substrate is supported by a backup mechanism. [Diagram 5] 3 is a block diagram showing an electrical configuration of the component mounter of FIG. 2. [Figure 6] 5A and 5B are schematic diagrams for explaining information indicated by mounting position data; [Figure 7A] FIG. 11 is a diagram illustrating a first example of a correction of the arrangement of backup pins. [Figure 7B] FIG. 11 is a diagram illustrating a second example of the correction of the arrangement of the backup pins. [Figure 8A] 10A to 10C are diagrams illustrating examples of variations of correction positions. [Figure 8B] 10A to 10C are diagrams illustrating examples of variations of correction positions. [Figure 9] 6 is a flowchart showing an example of a pin arrangement correction calculation executed by a calculation unit in accordance with a pin arrangement correction program. [Figure 10] 5 is a diagram showing a schematic relationship between a target position for arranging a backup pin and a pin insertion hole. FIG. [Figure 11] 10 is a flowchart showing an example of a user setting confirmation. [Figure 12] 13 is a flowchart showing a modified example of the pin arrangement correction calculation. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Fig. 1 is a schematic diagram showing a component mounting system equipped with a component mounter according to the present invention. The component mounting system 1 in Fig. 1 is equipped with a component mounter 4, an inspection machine 5, and a reflow furnace 6 arranged in series, and conveys a board 2 to these machines 4, 5, and 6 in order. Note that, although one component mounter 4 is shown in Fig. 1, the number of component mounters 4 equipped in the component mounting system 1 is not limited to one, and may be multiple.

[0030] The component mounter 4 mounts components on the board 2. The inspection machine 5 measures the positions of the components on the board 2 transported from the component mounter 4, obtains mounting position data Dm indicating the positions of the components mounted on the board 2 relative to the board 2, and transmits the data to the component mounting system 1. The reflow furnace 6 heats the board 2 transported from the inspection machine 5 to melt the components to be joined to the board 2. Note that the mounting of components by the component mounter 4, the inspection by the inspection machine 5, and the melting of solder by the reflow furnace 6 are performed sequentially for multiple boards 2. In this way, multiple boards with components mounted on them are produced.

[0031] 2 is a plan view showing a schematic diagram of a component mounter. In FIG. 2 and the following figures, the horizontal X direction, the horizontal Y direction perpendicular to the X direction, and the vertical Z direction are appropriately shown.

[0032] 2, the component mounter 4 is equipped with a pair of transport conveyors 41 that carry the board 2 into a predetermined board carry-in position 40. These transport conveyors 41 extend parallel to the Y direction and are arranged in the X direction at an interval corresponding to the width of the board 2, and transport the board 2 in the Y direction (transport direction) while supporting both ends of the board 2 in the X direction from below. These transport conveyors 41 hold the board 2 carried into the board carry-in position 40 horizontally.

[0033] Further, in the component mounter 4, a pair of X-axis rails 421 parallel to the X direction, an X-axis ball screw 422 parallel to the X direction, and an X-axis motor Mx (servo motor) that rotates and drives the X-axis ball screw 422 are provided, and a Y-axis rail 424 parallel to the Y direction is supported by the pair of X-axis rails 421 so as to be movable in the X direction and is fixed to the nut of the X-axis ball screw 422. A Y-axis ball screw 425 parallel to the Y direction and a Y-axis motor My (servo motor) that rotates and drives the Y-axis ball screw 425 are attached to the Y-axis rail 424, and the head unit 43 is fixed to the nut of the Y-axis ball screw 425 while being supported by the Y-axis rail 424 so as to be movable in the Y direction. Therefore, the head unit 43 can be moved in the X direction by rotating the X-axis ball screw 422 by the X-axis motor Mx, and the head unit 43 can be moved in the Y direction by rotating the Y-axis ball screw 425 by the Y-axis motor My.

[0034] The head unit 43 is a so-called in-line type having a plurality of mounting heads 431 arranged at equal intervals in the Y direction. A plurality of Z-axis motors Mz (servo motors) corresponding to the plurality of mounting heads 431, respectively, are attached to the head unit 43, and each Z-axis motor Mz raises and lowers the corresponding mounting head 431 in the Z direction. Therefore, of the plurality of mounting heads 431, the Z-axis motor Mz corresponding to one mounting head 431 can raise and lower that one mounting head 431 in the Z direction. Note that the head unit 43 is not limited to the in-line type, and may be a rotary type in which the plurality of mounting heads 431 are arranged circumferentially.

[0035] As shown in FIG. 2, two component supply units 44 are arranged in the Y direction on each side of the pair of conveyors 41 in the X direction. A plurality of tape feeders 441 are arranged in the Y direction and detachably attached to each component supply unit 44. The tape feeders 441 extend in the X direction and have component supply points 442 at their ends on the conveyor 41 side in the X direction. A component supply reel around which a tape is wound, in which small pieces of components 3 such as integrated circuits, transistors, and capacitors are stored at predetermined intervals, is arranged for each tape feeder 441, and the tape pulled out from the component supply reel is loaded into the tape feeder 441. The tape feeder 441 intermittently feeds the tape in the X direction toward the conveyor 41 side. As a result, the components 3 in the tape are fed in the X direction (feed direction) and supplied to the component supply points 442 of the tape feeder 441 in order.

[0036] The component mounter 4 also includes a backup mechanism 45 for supporting, from below, the board 2 carried into the board carrying-in position 40 (FIGS. 3 and 4). Here, FIG. 3 is a diagram that typically shows the configuration and operation of the backup mechanism that the component mounter includes, and FIG. 4 is a perspective view that typically shows how the board is supported by the backup mechanism.

[0037] The backup mechanism 45 has a push-up plate 46 held horizontally, and a lifting drive unit 47 that drives the push-up plate 46 in the Z direction. The lifting drive unit 47 is an actuator such as a solenoid or a cylinder, and lifts and lowers the push-up plate 46. A plurality of backup pins 7 are provided upright on the upper surface of the push-up plate 46. That is, as shown in FIG. 4, a plurality of pin insertion holes 461 are arranged in a matrix in the X and Y directions on the upper surface of the push-up plate 46, and when the lower end of the backup pin 7 is inserted into the pin insertion hole 461, the backup pin 7 is supported by the push-up plate 46.

[0038] The lifting drive unit 47 drives the push-up plate 46 in the Z direction to move the backup pin 7 in the Z direction between the lowered position Ld and the raised position Lu above the lowered position Ld. As shown in the "lowered position Ld" column of FIG. 3, each backup pin 7 located at the lowered position Ld faces the substrate 2 supported at the substrate loading position 40 by the transport conveyor 41 with a gap therebetween from below. When the lifting drive unit 47 lifts each backup pin 7 from the lowered position Ld to the raised position Lu, the upper end of each backup pin 7 comes into contact with the lower surface of the substrate 2, lifting the substrate 2 from the transport conveyor 41 (the "midway" column of FIG. 3). A pair of clamp plates 48 are arranged with a gap therebetween in the X direction above the pair of transport conveyors 41. When each backup pin 7 rises to the raised position Lu and the upper surface of the substrate 2 placed on the upper end of each backup pin 7 abuts against a pair of clamp plates 48 from below, the lifting drive unit 47 stops lifting each backup pin 7 (the "Rised position Lu" column in Figure 3).

[0039] The component mounter 4 is also provided with a pin stocker 49 that stores the backup pins 7. The pin stocker 49 has a plurality of pin holders 491, and each pin holder 491 can hold the backup pins 7. The pin holder 491 is, for example, a hole that extends in the Z direction and opens upward, and the backup pin 7 can be held in the pin holder 491 by inserting the backup pin 7 into the pin holder 491 from above. Alternatively, the backup pin 7 held in the pin holder 491 can be pulled out from the pin holder 491 to the upper side and placed on the push-up plate 46.

[0040] FIG. 5 is a block diagram showing an electrical configuration of the component mounter of FIG. 2. As shown in FIG. 5, the component mounter 4 includes a control device 91. The control device 91 includes a calculation unit 911, a UI (User Interface) 912, a communication interface 913, and a storage unit 914. The calculation unit 911 is a processor such as a CPU (Central Processing Unit), and executes calculations required by the control device 91. The UI 912 includes an output device such as a display, and an input device such as a mouse or a keyboard. However, the output device and the input device of the UI 912 do not need to be configured separately, and may be configured integrally with a touch panel display. The communication interface 913 communicates with the inspection device 5 to acquire mounting position data Dm. The storage unit 914 is a storage device such as an SSD (Solid State Drive), and stores the mounting position data Dm acquired by the communication interface 913 from the inspection device 5. The storage unit 914 also stores the pin arrangement data Dp and the pin arrangement correction program P. The pin arrangement data Dp is data that indicates the arrangement (XY coordinates) of the backup pins 7 on the push-up plate 46. The pin arrangement correction program P is a program that causes the control device 91 to execute the arrangement correction of the backup pins 7, which will be described later.

[0041] In particular, the backup pin 7 is placed at the position indicated by the pin arrangement data Dp on the push-up plate 46. Specifically, the calculation unit 911 controls the X-axis motor Mx, the Y-axis motor My, the Z-axis motor Mz, etc. in accordance with the pin arrangement data Dp, so that the mounting head 431 picks up the backup pin 7 from the pin holder 491 of the pin stocker 49, carries it above the push-up plate 46, and transfers it to the pin insertion hole 461 at the position indicated by the pin arrangement data Dp.

[0042] FIG. 6 is a schematic diagram for explaining information indicated by mounting position data. As shown in the "Land" column of FIG. 6, a land that becomes a mounting position 21 of a component 3 is provided on the board 2. The land functions as an electrode, and solder is printed on the land in advance by a solder printer. In response to this, the above-mentioned component mounter 4 mounts the component 3 on the mounting position 21. In the state shown in the "No Position Misalignment" column of FIG. 6, the position of the mounting position 21 and the position of the component 3 mounted on the mounting position 21 match, and no position misalignment occurs between the mounting position 21 and the component 3. On the other hand, in the "Misalignment" column of FIG. 6, the position of the mounting position 21 and the position of the component 3 mounted on the mounting position 21 are misaligned in the X direction, and a position misalignment occurs between the mounting position 21 and the component 3 in the X direction. Note that the direction in which a position misalignment occurs between the mounting position 21 and the component 3 is not limited to the X direction, and a position misalignment can occur in each of the Y direction and the R direction. Here, the R direction is the rotation direction around a center line parallel to the Z direction. Therefore, the inspection machine 5 (FIG. 1) measures and obtains mounting position data Dm indicating the amounts of positional deviation Δx, Δy, Δr of the component 3 with respect to the mounting location 21 in each of the X, Y, and R directions.

[0043] The calculation unit 911 compares the misalignment amounts Δx, Δy, and Δr indicated by the mounting position data Dm acquired by the communication interface 913 with the thresholds thx, thy, and thz. Here, the threshold thx corresponds to the allowable range of the misalignment amount Δx in the X direction, the threshold thy corresponds to the allowable range of the misalignment amount Δy in the Y direction, and the threshold thr corresponds to the allowable range of the misalignment amount Δr in the R direction. These thresholds thx, thy, and thz are set, for example, by the user operating the UI 912. If any of the misalignment amounts Δx, Δy, and Δr is equal to or greater than the corresponding threshold thx, thy, or thz, the calculation unit 911 determines that misalignment of the component 3 has occurred. On the other hand, if all of the misalignment amounts Δx, Δy, and Δr are less than the corresponding thresholds thx, thy, and thz, the calculation unit 911 determines that misalignment of the component 3 has not occurred.

[0044] One of the causes of such misalignment of the component 3 is an inappropriate position of the backup pin 7 relative to the mounting location 21. In other words, if the load applied to the board 2 when mounting the component 3 on the mounting location 21 causes the board 2 to bend, the board 2 vibrates, and the position of the component 3 is misaligned. Therefore, by supporting the board 2 directly below or in the vicinity of the mounting location 21 with the backup pin 7, the bending of the board 2 can be suppressed. As a result, the vibration of the board 2 is suppressed, and the occurrence of misalignment of the component 3 can be suppressed. Therefore, the calculation unit 911 executes the alignment correction of the backup pin 7 by changing the position of the backup pin 7 indicated by the pin alignment data Dp and correcting the pin alignment data Dp according to the pin alignment correction program P.

[0045] Fig. 7A is a diagram showing a schematic diagram of a first example of the correction of the arrangement of the backup pin. Fig. 7A shows an example in which a component 3A is mounted on the mounting location 21A, and a component 3B is mounted on the mounting location 21B. Fig. 7A also shows the backup pin 7 that is closest to the mounting location 21A among the multiple backup pins 7 arranged on the push-up plate 46. In the "pin arrangement A11" column, the position of the backup pin 7 is set to an initial position L0 between the mounting location 21A and the mounting location 21B, and closer to the mounting location 21B.

[0046] When the pin arrangement data Dp obtained by the inspection machine 5 inspecting the board 2 on which the component mounter 4 placed the backup pin 7 at the initial position L0 and mounted the component 3A at the mounting location 21A indicates the occurrence of a positional deviation of the component 3A, the calculation unit 911 corrects the pin arrangement data Dp so as to change the position of the backup pin 7 indicated by the pin arrangement data Dp from the initial position L0 to a corrected position L1 closer to the mounting location 21A than the initial position L0 (the column "Pin arrangement A12"). In this example, the corrected position L1 is a position facing the center of the mounting location 21A from below. Then, the component mounter 4 places the backup pin 7 on the push-up plate 46 based on the corrected pin arrangement data Dp.

[0047] When the pin arrangement data Dp obtained by the inspection machine 5 inspecting the board 2 on which the component mounter 4 places the backup pin 7 at the corrected position L1 and mounts the component 3A at the mounting location 21A indicates the occurrence of a positional deviation of the component 3B, it is assumed that the position of the component 3B may have been shifted due to the influence of changing the position of the backup pin 7 to the corrected position L1. Therefore, the calculation unit 911 corrects the pin arrangement data Dp so as to change the position of the backup pin 7 indicated by the pin arrangement data Dp from the corrected position L1 to a corrected position L2 closer to the mounting location 21B than the corrected position L1 (column "Pin arrangement A13"). This corrected position L2 is also closer to the initial position L0 than the corrected position L1. In particular, the corrected position L2 is between the corrected position L1 and the initial position L0, and particularly is a position between them. Then, the component mounter 4 places the backup pin 7 on the push-up plate 46 based on the corrected pin arrangement data Dp.

[0048] Whether or not the positional deviation of component 3B that occurs after the positional deviation from corrected position L1 to corrected position L2 is due to the influence of the change in position from initial position L0 to corrected position L1 depends on the arrangement of backup pins 7 around mounting location 21B where component 3B is to be mounted. Therefore, calculation unit 911 determines whether or not to change the pin arrangement data Dp from corrected position L1 to corrected position L2, depending on the arrangement of backup pins 7 around mounting location 21B where the positional deviation of component 3B occurred (FIG. 7B).

[0049] FIG. 7B is a diagram showing a schematic diagram of a second example of the correction of the arrangement of the backup pins. In the example shown in the "pin arrangement A21" column, four backup pins 7 are arranged around the mounting location 21B. Of these four backup pins 7, the backup pin 7 at the initial position L0 is the third closest to the mounting location 21B and is included in the three backup pins 7 that define the plane that supports the mounting location 21B. Here, the three backup pins 7 that define the plane that supports the mounting location 21B are the three backup pins 7 that are the first to third closest to the mounting location 21B among all the backup pins 7 arranged on the push-up plate 46. Therefore, it is highly likely that the above-mentioned positional deviation of the component 3B is due to the influence of the change in arrangement from the initial position L0 to the corrected position L1. Therefore, the calculation unit 911 executes the above-mentioned change in arrangement from the corrected position L1 to the corrected position L2 on the pin arrangement data Dp.

[0050] In the example shown in the "Pin Arrangement A22" column, four backup pins 7 are arranged around the mounting location 21B. However, among these four backup pins 7, the backup pin 7 at the initial position L0 is the fourth closest to the mounting location 21B and is not included in the three backup pins 7 that define the plane that supports the mounting location 21B. Therefore, it is unlikely that the above-mentioned positional deviation of the component 3B is due to the influence of the change in arrangement from the initial position L0 to the corrected position L1. Therefore, the calculation unit 911 does not execute the above-mentioned change in arrangement from the corrected position L1 to the corrected position L2 on the pin arrangement data Dp.

[0051] Here, the condition that the backup pin 7 at the initial position L0 is included among the three backup pins 7 that define the plane supporting the mounting location 21B is referred to as the "proximity condition." In other words, if the backup pin 7 at the initial position L0 is included among the three backup pins 7, the proximity condition is considered to be satisfied, and if the backup pin 7 at the initial position L0 is not included among the three backup pins 7, the proximity condition is considered to be not satisfied.

[0052] Incidentally, various variations of the correction position L2 are assumed. Fig. 8A and Fig. 8B are diagrams that show examples of variations of the correction position. In the example of Fig. 8A, the correction position L2 is set between the correction position L1 and the initial position L0, particularly at a position intermediate between the correction position L1 and the initial position L0. On the other hand, in the example of Fig. 8B, the correction position L2 is set at a position between the correction position L1 and the mounting position 21B, particularly at a position intermediate between the correction position L1 and the mounting position 21B. The positions of the mounting position 21 and the backup pin 7 are given, for example, by the positions of their centers (geometric centers of gravity) in a plan view.

[0053] 9 is a flowchart showing an example of a pin placement correction calculation executed by the calculation unit according to the pin placement correction program. This pin placement correction calculation is executed by the calculation unit 911 every time the inspection machine 5 executes an inspection on one board 2 and transmits mounting position data Dm to the communication interface 913 of the component mounter 4. In other words, the calculation unit 911 executes this pin placement correction calculation every time one board with components mounted thereon is newly produced. In the explanation of this flowchart, the above-mentioned example is used to treat component 3A as the target component of the pin placement correction calculation, and component 3B as the other component.

[0054] In step S101, the calculation unit 911 acquires mounting position data Dm through the communication interface 913 and stores it in the storage unit 914. In step S102, it is determined whether or not there is a possibility that the effect of correcting the position of the backup pin 7 to the corrected position L1 in the previous pin arrangement correction calculation has influenced the positional deviation of the other component 3B. Specifically, if there is no record of correcting the position of the backup pin 7 in the previous pin arrangement correction calculation due to the positional deviation of the component 3A relative to the mounting location 21A, it is determined that there is no possibility ("NO" in step S102). Also, if there is such a record, the presence or absence of positional deviation of the other component 3B is confirmed. In other words, if no positional deviation of the component 3B occurs after the backup pin 7 is moved from the initial position L0 to the corrected position L1 in the component mounter 4, it is determined that there is no possibility ("NO" in step S102), and if positional deviation of the component 3B begins to occur, it is determined that there is a possibility ("YES" in step S102).

[0055] If it is determined in step S102 that there is no possibility, the calculation unit 911 determines whether or not misalignment of the component 3A with respect to the mounting location 21A has occurred based on the mounting position data Dm (step S103). As described above, this determination of the occurrence of misalignment is performed by comparing the amounts of misalignment Δx, Δy, and Δr indicated by the mounting position data Dm with the thresholds thx, thy, and thz. If no misalignment of the component 3A has occurred (if it is determined in step S103 that there is no possibility), the pin arrangement correction calculation in FIG. 9 is terminated.

[0056] When the positional deviation of the component 3A occurs ("YES" in step S103), the calculation unit 911 judges whether or not a predetermined warning condition is satisfied (step S104). That is, when the positional deviation of the component 3A continues to occur despite the position of the backup pin 7 being corrected in the previous pin arrangement correction calculation in response to the occurrence of the positional deviation of the component 3A, the calculation unit 911 determines that the warning condition is satisfied ("YES" in step S104), and causes the UI 912 to execute a warning that the positional deviation of the component 3A may occur due to a factor other than the arrangement of the backup pin 7 (step S111).

[0057] On the other hand, if there is no record of correcting the position of the backup pin 7 due to the positional deviation of the component 3A relative to the mounting location 21A in the previous pin arrangement correction calculation, it is determined that the warning condition is not satisfied ("NO" in step S104). Next, the calculation unit 911 determines whether or not the positional deviation of the component 3A confirmed in step S103 satisfies the counting condition. Specifically, during the unstable production period before a predetermined time has elapsed since the change in the lot or type of the board 2, it is determined that the counting condition is not satisfied ("NO" in step S105), and the pin arrangement correction calculation in FIG. 9 is terminated. Note that the unstable production period may be set not based on time, but on the number of boards produced with components mounted on them.

[0058] On the other hand, if the unstable production period has passed, it is determined that the count condition is satisfied (determined as "YES" in step S105), and the calculation unit 911 increments the count value of the number of occurrences of positional deviation of the component 3A by 1 (step S106). In step S107, the calculation unit 911 determines whether the count value is N or more (N is an integer of 2 or more). If the count value is less than N ("NO" in step S107), the pin arrangement correction calculation of FIG. 9 is terminated. On the other hand, if the count value is N or more ("YES" in step S107), the pin arrangement data Dp is corrected so that the position of the backup pin 7 indicated by the pin arrangement data Dp is changed from the initial position L0 to a corrected position L1 closer to the mounting location 21A than the initial position L0, and the count value is reset to zero (step S108). Then, the pin arrangement correction calculation of FIG. 9 is terminated.

[0059] Furthermore, in the above step S102, if it is determined that the effect of correcting the position of the backup pin 7 to the corrected position L1 in the previous pin arrangement correction calculation may have affected the positional deviation of the other component 3B (if "YES" in step S102), the calculation unit 911 determines whether or not the above-mentioned proximity condition is satisfied (step S109). If the proximity condition is not satisfied (if "NO" in step S109), the process proceeds to step S103. On the other hand, if the proximity condition is satisfied (if "YES" in step S109), the calculation unit 911 corrects the pin arrangement data Dp so as to change the position of the backup pin 7 indicated by the pin arrangement data Dp from the corrected position L1 to a corrected position L2 closer to the mounting location 21B than the corrected position L1 (step S110).

[0060] In the embodiment described above, mounting position data Dm (first position information) indicating the positional relationship between the component 3A (first component) mounted on the mounting position 21A (first mounting position) of the board 2 by the component mounter 4 and the mounting position 21A is acquired (step S101), and based on this mounting position data Dm, occurrence of positional deviation of the component 3A with respect to the mounting position 21A is determined (step S103). Then, according to the determination result based on the mounting position data Dm, the arrangement of the backup pins 7 with respect to the mounting position 21A is corrected (step S108). As a result, when positional deviation of the component 3A mounted on the board 2 occurs, it is possible to appropriately respond and suppress the positional deviation of the component 3A.

[0061] Also, a UI 912 (threshold setting unit) is provided that accepts user setting of a threshold for determining occurrence of misalignment. Then, the calculation unit 911 (misalignment determination unit) determines that misalignment of the component 3A with respect to the mounting location 21A has occurred if the amount of misalignment between the mounting location 21A and the component 3A indicated by the mounting position data Dm is equal to or greater than the threshold ("YES" in step S103), and determines that misalignment of the component 3A with respect to the mounting location 21A has not occurred if the amount of misalignment is less than the threshold ("NO" in step S103). In this configuration, the user can adjust the frequency of execution of the position correction of the backup pin 7 by setting the threshold. As a result, the position correction of the backup pin 7 can be executed at a frequency that meets the needs of the user.

[0062] Furthermore, the calculation unit 911 (placement correction unit) counts the number of times that misalignment of the component 3A with respect to the mounting location 21A occurs (step S106), and when the count value of the number of occurrences becomes N or more (N is an integer of 2 or more) ("YES" in step S107), it corrects the placement of the backup pin 7 (step S108). With this configuration, it is possible to prevent the placement of the backup pin 7 from being corrected due to an accidental misalignment.

[0063] Furthermore, the calculation unit 911 does not count the positional deviation of the component 3A from the mounting location 21A that occurs when the situation in which the component 3A is mounted on the mounting location 21A is a situation in an unstable production period (predetermined situation), but counts the positional deviation of the component 3A from the mounting location 21A that occurs when the situation in which the component 3A is mounted on the mounting location 21A is not a situation in an unstable production period (steps S105, S106). That is, for example, in a situation immediately after a change in the lot or type of the board 2, there is a high possibility that the positional deviation of the component 3A will occur due to a factor other than the appropriateness of the arrangement of the backup pins 7. In contrast, by configuring as described above, it is possible to eliminate the influence of the positional deviation that occurs in such a situation and appropriately correct the arrangement of the backup pins 7.

[0064] Furthermore, the calculation unit 911 corrects the arrangement of the backup pins 7 by changing the position of the backup pin 7 closest to the mounting location 21A (the column "pin arrangement A12" in FIG. 7A). With this configuration, it is possible to reduce the time required for setting and thinking about which backup pin 7 position to change.

[0065] Furthermore, the calculation unit 911 corrects the arrangement of the backup pin by changing the position of the backup pin 7 so as to bring the backup pin 7 closer to the mounting location 21A (the column "pin arrangement A12" in FIG. 7A). This configuration is advantageous in suppressing misalignment of the component 3A that occurs at the mounting location 21A.

[0066] Furthermore, the calculation unit 911 changes the position of the backup pin 7 so that the backup pin 7 faces the center of the mounting location 21A (the column "pin arrangement A12" in FIG. 7A). With this configuration, it is possible to accurately suppress the positional deviation of the component 3A that occurs at the mounting location 21A.

[0067] The calculation unit 911 also changes the position of the backup pin 7 from the initial position L0 to a corrected position L1 (first corrected position) that is closer to the mounting location 21A (first mounting location) than the initial position L0 (the "pin arrangement A12" column in FIG. 7A). The communication interface 913 (information acquisition unit) also acquires mounting position data Dm (second position information) that indicates the positional relationship between the mounting location 21B and the component 3B that has been mounted at the mounting location 21B (second mounting location) different from the mounting location 21A after the backup pin 7 is placed at the corrected position L1 in the component mounter 4. Then, the calculation unit 911 (misalignment determination unit) determines whether misalignment of the component 3B with respect to the mounting location 21B has occurred based on the mounting location data Dm (step S102), and the calculation unit 911 (placement correction unit) changes the position of the backup pin 7 from the corrected position L1 to a corrected position L2 (secondary corrected position) closer to the mounting location 21B than the corrected position L1 in accordance with the determination result based on the mounting location data Dm (step S110, the column "pin arrangement A13" in FIG. 7A). With this configuration, when misalignment of the component 3B occurs at the mounting location 21B due to the influence of the placement correction of the backup pin 7 with respect to the mounting location 21A, it is possible to appropriately respond and suppress the misalignment of the component 3B at the mounting location 21B.

[0068] Furthermore, when the backup pin 7 at the initial position L0 is included in the three backup pins 7 that are the first to third closest to the mounting location 21B before the change from the initial position L0 to the corrected position L1 (YES in the "pin arrangement A21" column in FIG. 7B, step S109), the calculation unit 911 changes the position of the backup pin 7 at the corrected position L1 to the corrected position L2 (step S110). On the other hand, when the backup pin 7 at the initial position L0 is not included in the three backup pins 7 (NO in the "pin arrangement A22" column in FIG. 7B, step S109), the calculation unit 911 does not change the position of the backup pin 7 at the corrected position L1. With this configuration, it is possible to suppress unnecessary correction of the arrangement of the backup pin 7 in response to a positional deviation of the component 3B at the mounting location 21B that occurs in a situation where the influence of the correction of the arrangement of the backup pin 7 on the mounting location 21A is assumed to be small.

[0069] Moreover, the corrected position L2 is closer to the initial position L0 than the corrected position L1, which makes it possible to suppress misalignment of the component 3B at the mounting location 21B.

[0070] 7A and 8A, the corrected position L2 is a position intermediate between the corrected position L1 and the initial position L0, which makes it possible to suppress misalignment of the component 3B at the mounting location 21B.

[0071] Also, a UI 912 (notification unit) that notifies the user is provided. Then, the communication interface 913 (information acquisition unit) acquires mounting position data Dm (corrected position information) indicating the positional relationship between the mounting location 21A and the component 3A mounted on the mounting location 21A after the backup pin 7 is placed in the component mounter 4 in accordance with the correction of the arrangement of the backup pin 7 relative to the mounting location 21A (step S101). Also, the calculation unit 911 determines the occurrence of positional deviation of the component 3 relative to the mounting location 21A based on this mounting position data Dm (step S103), and causes the UI 912 to execute notification based on the determination result based on this mounting position data Dm (steps S104, S111). With this configuration, it is possible to appropriately respond when the positional deviation of the component 3A occurs due to a factor other than the arrangement of the backup pin 7.

[0072] As described above, in this embodiment, the substrate 2 corresponds to an example of a "substrate" of the present invention, the mounting location 21 corresponds to an example of a "mounting location" of the present invention, the mounting location 21A corresponds to an example of a "first mounting location" of the present invention, the mounting location 21B corresponds to an example of a "second mounting location" of the present invention, the component 3 corresponds to an example of a "component" of the present invention, the component 3A corresponds to an example of a "first component" of the present invention, the component 3B corresponds to an example of a "second component" of the present invention, the component mounter 4 corresponds to an example of a "component mounter" of the present invention, the head unit 43 corresponds to an example of a "head unit" of the present invention, the backup pin 7 corresponds to an example of a "backup pin" of the present invention, the control device 91 corresponds to an example of a "backup pin arrangement correction device" of the present invention, and the calculation unit 911 corresponds to an example of a "position deviation judgment device" of the present invention. the calculation unit 911 corresponds to an example of an "arrangement correction unit" of the present invention, the UI 912 corresponds to an example of a "threshold setting unit" of the present invention, the UI 912 corresponds to an example of a "user interface" of the present invention, the UI 912 corresponds to an example of an "alert unit" of the present invention, the communication interface 913 corresponds to an example of an "information acquisition unit" of the present invention, the memory unit 914 corresponds to an example of a "recording medium" of the present invention, the mounting position data Dm corresponds to an example of "second position information" of the present invention, the mounting position data Dm corresponds to an example of "first position information", the initial position L0 corresponds to an example of an "initial position" of the present invention, the corrected position L1 corresponds to an example of a "primary corrected position" of the present invention, and the pin arrangement correction program P corresponds to an example of a "backup pin arrangement correction program" of the present invention.

[0073] The present invention is not limited to the above embodiment, and various modifications can be made to the above without departing from the spirit of the present invention. For example, as described above, the pin insertion holes 461 are arranged in a matrix. In contrast, in the example of FIG. 8A, the intermediate position between the initial position L0 and the corrected position L1 is set as the corrected position L2. However, the intermediate position may be shifted from the position of the pin insertion hole 461, and may not be a position where the backup pin 7 can be placed (FIG. 10). FIG. 10 is a diagram showing a schematic diagram of the relationship between the target position where the backup pin is placed and the pin insertion hole. In the example of FIG. 10, the intermediate position between the initial position L0 and the corrected position L1 is shown as the target position Lt. Since the target position Lt is shifted from the pin insertion hole 461, the backup pin 7 cannot be placed at the target position Lt. Therefore, among the multiple pin insertion holes 461 provided in the push-up plate 46, the position of the pin insertion hole 461 closest to the target position Lt (closest position La) is set as the position where the backup pin 7 is placed (i.e., the corrected position L2).

[0074] In this modification, when the backup pin 7 cannot be placed at a position intermediate between the corrected position L1 (primary corrected position) and the initial position L0, the calculation unit 911 (placement correction unit) sets the closest position La to the intermediate position among the positions where the backup pin 7 can be placed (i.e., the positions of the pin insertion holes 461) as the corrected position L2. This makes it possible to suppress misalignment of the component 3B at the mounting location 21B.

[0075] Similarly, in the example of FIG. 8B, if the backup pin 7 cannot be placed at a position halfway between the corrected position L1 and the mounting location 21B, the closest position La to the intermediate position (target position Lt) among the positions at which the backup pin 7 can be placed (i.e., the position of the pin insertion hole 461) can be set as the corrected position L2.

[0076] Furthermore, if the backup pin 7 cannot be placed at a position facing the center of the mounting portion 21A from below, the closest position La to the facing position (target position Lt) may be set as the initial position L0.

[0077] 11, the arrangement correction of the backup pin 7 in step S108 may be performed after confirming the user's settings. FIG. 11 is a flowchart showing an example of the user setting confirmation, which is executed by the calculation unit 911. In step S201, the calculation unit 911 determines whether or not the UI 912 has accepted an automatic execution command from the user. If an automatic execution command has been accepted ("YES" in step S201), the calculation unit 911 proceeds to step S108 and executes the pin arrangement correction.

[0078] On the other hand, if the UI 912 has not received an automatic execution command from the user ("NO" in step S201), the calculation unit 911 causes the UI 912 to inquire as to whether or not correction of the backup pin 7 is necessary (step S202). Then, if the UI 912 receives input from the user that correction of the backup pin 7 is necessary ("YES" in step S203), the calculation unit 911 proceeds to step S108 and executes pin arrangement correction. On the other hand, if the UI 912 receives input from the user that correction of the backup pin 7 is not necessary ("NO" in step S203), the calculation unit 911 ends the flowchart of FIG. 11 without performing pin arrangement correction.

[0079] In the example of FIG. 11, the UI 912 accepts an input operation by the user to input whether or not correction of the arrangement of the backup pin 7 is required. Then, the calculation unit 911 (arrangement correction unit) inquires of the user through the UI 912 whether or not correction of the arrangement of the backup pin 7 is required, depending on the determination result of the positional deviation of the component 3A in steps S103 to S107 (step S202). Then, when the UI 912 accepts an input that correction is required ("YES" in step S203), the calculation unit 911 corrects the arrangement of the backup pin 7. On the other hand, when the UI 912 accepts an input that correction is not required ("NO" in step S203), the calculation unit 911 does not correct the arrangement of the backup pin 7. With this configuration, the arrangement correction of the backup pin 7 can be performed at a timing according to the needs of the user.

[0080] Furthermore, the UI 912 accepts input of an automatic execution command for correcting the placement of the backup pin 7. Then, when an automatic execution command is input to the UI 912 (if "YES" in step S201), the calculation unit 911 (placement correction unit) corrects the placement of the backup pin 7 according to the determination results of the positional deviation of the component 3A in steps S103 to S107, without inquiring of the user as to whether or not the placement of the backup pin 7 needs to be corrected (step S108). With this configuration, the placement correction of the backup pin 7 can be executed without requiring the user's effort.

[0081] Fig. 12 is a flowchart showing a modified example of the pin arrangement correction calculation. The example in Fig. 12 differs from the example in Fig. 9 in that steps S104 to S107 are not included. That is, in the example in Fig. 12, as a result of determining whether or not misalignment of the component 3A has occurred, if it is confirmed that misalignment has occurred ("YES" in step S103), pin arrangement correction is executed (step S108).

[0082] 12, mounting position data Dm (first position information) indicating the positional relationship between the mounting position 21A (first mounting position) of the board 2 and the component 3A (first component) mounted by the component mounter 4 is acquired (step S101), and the occurrence of positional deviation of the component 3A with respect to the mounting position 21A is determined based on the mounting position data Dm (step S103). Then, based on the determination result based on the mounting position data Dm, the arrangement of the backup pins 7 with respect to the mounting position 21A is corrected (step S108). As a result, when a positional deviation of the component 3A mounted on the board 2 occurs, it is possible to appropriately respond and suppress the positional deviation of the component 3A.

[0083] In the above example, the arrangement of the backup pins 7 is corrected by changing the positions of the backup pins 7 in the pin arrangement data Dp. However, the arrangement of the backup pins 7 may be corrected by setting new positions for placing the backup pins 7 in the pin arrangement data Dp.

[0084] Also, the "backup pin correction device" may be provided separately from the component mounter 4. In other words, a server computer provided separately from the component mounter 4 may function as the control device 91 in FIG.

[0085] Furthermore, the location of the inspection machine 5 in the component mounting system 1 is not limited to being in front of the reflow furnace 6, but may be behind the reflow furnace 6. Furthermore, it is not essential that the component mounting system 1 is equipped with the reflow furnace 6.

[0086] Furthermore, the configuration for holding the backup pin 7 by the push-up plate 46 is not limited to the above-mentioned pin insertion hole 461. In other words, one of the push-up plate 46 and the backup pin 7 may be provided with iron and the other with a magnet, and they may be fixed together by magnetic force. [Explanation of symbols]

[0087] 2...Substrate 21…Installation location 21A…Installation location 21B…Installation location 3. Parts 3A…Parts 3B…Parts 4. Component mounting machine 43…Head unit 7…Backup pin 91...Control device 911...Arithmetic unit 912…UI 913…Communication interface 914...Storage section Dm…Mounting position data L0…Initial position L1…Correction position P…Placement correction program

Claims

1. an information acquiring unit that acquires first position information indicating a positional relationship between a first component mounted at a first mounting location on a board by a component mounter that mounts a component at a mounting location on a board supported by backup pins and the first mounting location; a positional deviation determination unit that determines the occurrence of positional deviation of the first component with respect to the first mounting location based on the first position information; a placement correction unit that corrects a placement of the backup pin with respect to the first mounting location in accordance with a determination result by the position deviation determination unit based on the first position information; A backup pin arrangement correction device comprising:

2. a threshold setting unit that receives a user's setting of a threshold for determining the occurrence of the position shift, 2. The backup pin arrangement correction device according to claim 1, wherein the positional deviation determination unit determines that a positional deviation of the first component relative to the first mounting location has occurred if a positional deviation amount between the first mounting location and the first component indicated by the first position information is equal to or greater than a threshold value, and determines that a positional deviation of the first component relative to the first mounting location has not occurred if the positional deviation amount is less than the threshold value.

3. 2. The backup pin placement correction device according to claim 1, wherein the placement correction unit counts the number of occurrences of positional misalignment of the first component with respect to the first mounting location, which is indicated by a determination result by the positional misalignment determination unit based on the first position information, and corrects the placement of the backup pin when the count value of the number of occurrences becomes N or more (N is an integer equal to or greater than 2).

4. 4. The backup pin placement correction device according to claim 3, wherein the placement correction unit does not count a positional deviation of the first component with respect to the first mounting location that occurs when a situation in which the first component is mounted at the first mounting location is a specified situation, but counts a positional deviation of the first component with respect to the first mounting location that occurs when a situation in which the first component is mounted at the first mounting location is not a specified situation.

5. a user interface that receives an input operation by a user to input whether or not the arrangement of the backup pins needs to be corrected; 2. The backup pin position correction device according to claim 1, wherein the position correction unit inquires of a user through the user interface whether or not correction of the position of the backup pin is necessary in accordance with a determination result of the positional deviation determination unit, and corrects the position of the backup pin when the user inputs into the user interface that correction is necessary, and does not correct the position of the backup pin when the user inputs into the user interface that correction is not necessary.

6. the user interface accepts an input of an automatic execution command for correcting the arrangement of the backup pins; 6. The backup pin position correction device according to claim 5, wherein, when the automatic execution command is input to the user interface, the position correction unit corrects the position of the backup pin in accordance with a determination result of the position deviation determination unit without inquiring of a user as to whether or not correction of the position of the backup pin is required.

7. The backup pin arrangement correction device according to claim 1 , wherein the arrangement correction unit corrects the arrangement of the backup pin by changing a position of the backup pin that is closest to the first mounting location.

8. The backup pin arrangement correction device according to claim 7 , wherein the arrangement correction unit corrects the arrangement of the backup pin by changing a position of the backup pin so as to bring the backup pin closer to the first mounting location.

9. The backup pin arrangement correction device according to claim 7 , wherein the arrangement correction unit changes a position of the backup pin so that the backup pin faces a center of the first mounting location.

10. the placement correction unit changes a position of the backup pin from an initial position to a primary correction position closer to the first mounting location than the initial position; the information acquisition unit acquires second position information indicating a positional relationship between a second component mounted at a second mounting location different from the first mounting location after the backup pin is placed at the primary correction position of the component mounter, and the second mounting location; the positional deviation determination unit determines occurrence of positional deviation of the second component with respect to the second mounting location based on the second position information; 9. The backup pin position correction device according to claim 8, wherein the position correction unit changes the position of the backup pin from the primary corrected position to a secondary corrected position closer to the second mounting location than the primary corrected position, depending on a determination result by the position deviation determination unit based on the second position information.

11. 11. The backup pin arrangement correction device according to claim 10, wherein the arrangement correction unit changes the position of the backup pin at the primary corrected position to the secondary corrected position when the backup pin at the initial position is included among three backup pins that are first to third closest to the second mounting location before the change from the initial position to the primary corrected position, whereas the arrangement correction unit does not change the position of the backup pin at the primary corrected position when the backup pin at the initial position is not included among the three backup pins.

12. 11. The backup pin arrangement correction device according to claim 10, wherein the secondary corrected position is closer to the initial position than the primary corrected position.

13. 13. The backup pin arrangement correction device according to claim 12, wherein the secondary correction position is an intermediate position between the primary correction position and the initial position.

14. 14. The backup pin arrangement correction device according to claim 13, wherein, when the backup pin cannot be placed at an intermediate position between the primary corrected position and the initial position, the arrangement correction unit sets, as the secondary corrected position, a position that is closest to the intermediate position among positions at which the backup pin can be placed.

15. A notification unit for notifying a user is further provided, the information acquisition unit acquires corrected position information indicating a positional relationship between the first mounting location and the first component mounted on the first mounting location after placing the backup pin in the component mounter in response to a correction of the arrangement of the backup pin with respect to the first mounting location, the positional deviation determination unit determines occurrence of positional deviation of the first component with respect to the first mounting location based on the corrected position information; The backup pin position correction device according to claim 1 , wherein the position correction unit causes the notification unit to execute the notification in response to a determination result made by the position deviation determination unit based on the corrected position information.

16. The backup pin arrangement correction device according to any one of claims 1 to 15, A head unit that mounts components on a board supported by backup pins; A component mounting machine equipped with the above components.

17. a step of acquiring first position information indicating a positional relationship between a first component mounted at a first mounting location on a board by a component mounter that mounts a component at a mounting location on a board supported by backup pins and the first mounting location; determining, based on the first position information, whether or not a positional deviation of the first component has occurred with respect to the first mounting location; correcting an arrangement of the backup pin with respect to the first mounting location according to a result of the determination based on the first position information; A backup pin arrangement correction method comprising:

18. A backup pin placement correcting program that causes a computer to execute the backup pin placement correcting method according to claim 17.

19. 20. A recording medium having the backup pin arrangement correction program according to claim 18 recorded thereon in a computer-readable manner.

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