Component supply device and component supply method

Abstract

To provide a technique capable of reducing the size of a component supply device.SOLUTION: On an arrangement surface of a component supply device, an arrangement reference that does not protrude upward from the arrangement surface and indicates an arrangement position corresponding to a plurality of sizes of a tray is arranged along a first direction. The plurality of tray sizes includes at least a first size and a second size greater than the first size. The arrangement reference is configured such that at least a part of a region of the arrangement surface that contacts the tray of the first size when the tray of the first size is arranged on the arrangement surface with reference to a first arrangement reference corresponding to the first size is included in a region of the arrangement surface that contacts the tray of a second size when the tray of the second size is arranged on the arrangement surface with reference to the second arrangement reference corresponding to the second size. The tray of the second size arranged on the arrangement surface in accordance with the second arrangement reference covers at least a part of the first arrangement reference.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present specification relates to a technique for supplying components to a component mounter using a tray. [Background technology]

[0002] The tray-type component supply device disclosed in Patent Document 1 includes an L-shaped ruler that can be attached to and detached from a support base by magnetic force. In the tray-type component supply device, an operator places a tray on the support base so that the inner surface of the L-shaped ruler placed on the support base abuts against two side surfaces of the tray. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-100787 Summary of the Invention [Problem to be solved by the invention]

[0004] The tray-type component supply device in Patent Document 1 is equipped with a guide bar that extends along one side of a support base. A scale is provided on the top surface of the guide bar, and the worker positions an L-shaped ruler according to the indicated scale value. The tray-type component supply device in Patent Document 1 requires a guide bar with a scale separate from the support base, which increases the size of the component supply device. This specification provides a technology that can reduce the size of the device compared to conventional technologies.

[0005] The technology disclosed in this specification is embodied in a component supplying device that supplies components to a component mounter that mounts components on a board. The component supplying device includes an arrangement surface on which trays holding the components can be arranged along a first direction. The arrangement surface has arrangement criterions that do not protrude upward from the arrangement surface and indicate arrangement positions corresponding to each of a plurality of sizes of the trays, arranged along the first direction. The plurality of tray sizes includes at least a first size and a second size larger than the first size. The arrangement criterions are configured so that, when a tray of the first size is arranged on the arrangement surface based on a first arrangement criterion corresponding to the first size, at least a portion of an area on the arrangement surface that abuts the tray of the first size is included in an area on the arrangement surface that abuts the tray of the second size is arranged on the arrangement surface based on a second arrangement criterion corresponding to the second size. The tray of the second size arranged on the arrangement surface in accordance with the second arrangement criterion covers at least a portion of the first arrangement criterion.

[0006] In the component supply device described above, the placement references for placing the trays are arranged on the placement surface, eliminating the need to provide placement references outside the placement surface. Furthermore, the placement references do not protrude upward from the placement surface, and the second-size tray is placed on the placement surface so as to cover at least a portion of the first placement references. In other words, the component supply device disclosed in this specification can position the second-size tray using at least a portion of the first placement references, thereby enabling the device to be smaller in size than conventional technologies that use placement references separate from the placement surface (e.g., a guide bar with a scale).

[0007] This specification also discloses a component supply device according to another embodiment. The component supply device according to this embodiment includes an arrangement surface on which multiple types of trays for holding the components can be arranged, and a display unit that displays codes indicating component information about the components held in the trays arranged on the arrangement surface. The trays hold different types of components for each of the multiple types, and the codes are set for each type of component. The display unit includes a member on which multiple codes set for each type of component are arranged, and an exposure mechanism that exposes only one of the multiple codes arranged on the member to the outside.

[0008] In the component supply device described above, the exposure mechanism exposes only one of the multiple codes arranged on the component to the outside. This allows a common display unit to display each of the different codes set for each type of component. This allows the device to be smaller in size than when multiple displays are provided, each displaying a separate code for each type of component.

[0009] Furthermore, a component supplying method executed by the component supplying device, and a computer program for causing a control device of the component supplying device to execute processing, are also novel and useful. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a plan view showing the entire component mounter. [Figure 2] Enlarged view of the tray adapter. [Figure 3] An enlarged view of the area enclosed by dashed line III in Figure 2. [Figure 4] 10 is a flowchart showing a placement determination process. DETAILED DESCRIPTION OF THE INVENTION

[0011] The main features of the embodiments described below are listed below. Note that the technical elements described below are independent technical elements that exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing.

[0012] The component supply device disclosed in this specification may further include a pin that is detachable from the placement reference, and may be configured so that a side surface of the tray abuts against the pin when the pin is attached to the placement reference.

[0013] With this configuration, the position of the tray can be regulated by the pin, so that the tray can be appropriately positioned relative to the positioning reference.

[0014] In the component supply device disclosed in this specification, the placement reference may include a recess formed in the placement surface, and in this case, the pin may be fixed to the placement surface by fitting into the recess.

[0015] With this configuration, the recess allows the pin to be positioned accurately.

[0016] The component supply device disclosed in this specification may further include a display unit that displays a code indicating component information about the components held in the tray arranged on the arrangement surface.

[0017] According to this configuration, the display unit can display, for example, component information relating to the component placed on the placement surface.

[0018] In the component supply device disclosed in this specification, the tray may hold different types of components for each of the plurality of sizes, and the code may be set for each type of component. In this case, the display unit may include a member on which a plurality of the codes set for each type of component are arranged, and an exposure mechanism for exposing only one of the plurality of codes arranged on the member to the outside.

[0019] According to this configuration, the exposure mechanism of the display unit can expose only the code corresponding to the component placed on the placement surface, out of the multiple codes set for each type of component.

[0020] In the component supply device disclosed in this specification, the component mounter may further include an imaging device configured to capture an image of the placement surface and the display unit. In this case, the component information may include at least one of appropriate position information indicating appropriate positions of the placement rules that will be exposed on the placement surface when the tray is appropriately placed on the placement surface, and appropriate number information indicating an appropriate number of the placement rules that will be exposed on the placement surface when the tray is appropriately placed on the placement surface. Furthermore, if the appropriate positions indicated by the appropriate position information or the appropriate number indicated by the appropriate number information included in the component information represented by the code in the image captured by the imaging device do not match the positions or the number of the placement rules included on the placement surface in the image captured by the imaging device, a predetermined process may be executed, and if the appropriate positions or the appropriate number included in the component information represented by the code in the image captured by the imaging device match the positions or the number of the placement rules included on the placement surface in the image captured by the imaging device, the predetermined process may not be executed.

[0021] With this configuration, if the information represented by the code displayed on the display unit does not match the arrangement of the parts placed on the placement surface and it is estimated that the tray arrangement on the placement surface is not appropriate, a predetermined process can be executed.

[0022] The component supply device disclosed in this specification may further include pins that are detachable from the placement reference. In this case, the control device may execute the predetermined process when the appropriate positions or the appropriate number included in the component information represented by the code in the image captured by the imaging device do not match the positions or the number of the pins included on the placement surface in the image captured by the imaging device, and may not execute the predetermined process when the appropriate positions or the appropriate number included in the component information represented by the code in the image captured by the imaging device match the positions or the number of the pins included on the placement surface in the image captured by the imaging device.

[0023] With this configuration, it is possible to more accurately determine, based on the image of the pin, whether or not the information represented by the code displayed on the display unit matches the tray arrangement on the arrangement surface.

[0024] (First Example) A tray adapter 20 (an example of a component supply device) according to a first embodiment will be described with reference to the drawings. FIG. 1 is a plan view of a component mounter 10 equipped with a tray adapter 20. The component mounter 10 is a device that mounts, for example, components 4F onto a board 2. The component mounter 10 is also called an electronic component mounting device or a chip mounter. The components 4F are electronic components, and the board 2 is a circuit board. Typically, the component mounter 10 is installed alongside other devices such as a solder printer and a board inspection machine, forming a continuous mounting line.

[0025] In addition to the tray adapter 20, the component mounter 10 includes an XY robot 11, a camera 15, a head unit 16, a board conveyor 18, a component holder 19, and a control device 40.

[0026] The XY robot 11 is located above the substrate 2 (i.e., toward the front of the paper in FIG. 1) and is a device that moves the head unit 16. The XY robot 11 includes a pair of Y-axis sliders 12 that extend along the Y direction and a pair of X-axis sliders 14 that extend along the X direction. The head unit 16 is held by the X-axis sliders 14. The XY robot 11 moves the head unit 16 in the Y direction along the pair of Y-axis sliders 12, and also moves it in the X direction along the X-axis sliders 14. The XY robot 11 moves the head unit 16, for example, between above the tray adapter 20 and above the substrate 2.

[0027] The camera 15 is positioned above the board 2 and is moved together with the head unit 16 by the XY robot 11. The camera 15 captures an image of the board 2, for example, after the component 4F has been mounted. This makes it possible to determine whether the component 4F has been properly mounted on the board 2. The camera 15 also captures an image of the tray adapter 20 from above the tray adapter 20.

[0028] The head unit 16 includes a mounting head 17. The mounting head 17 has a cylindrical shape that extends downward (i.e., toward the back of the paper in FIG. 1). The mounting head 17 detachably holds multiple nozzles. The mounting head 17 can move the nozzles along the Z axis (i.e., toward the back of the paper in FIG. 1), for example, to move the nozzles toward and away from the substrate 2 and the tray adapter 20.

[0029] The board conveyor 18 includes, for example, a pair of belt conveyors extending in the X direction, and is a device that loads, positions, and loads the board 2. The board conveyor 18 supports the board 2 from below. The board conveyor 18 transports the board 2 in the +X direction (i.e., toward the right on the paper surface of FIG. 1). The component holder 19 is located in front of the board conveyor 18 (i.e., below the paper surface of FIG. 1). The component holder 19 has a flat surface that extends horizontally, and holds the tray adapter 20 from below.

[0030] The tray adapter 20 supplies a plurality of components to the mounting head 17 of the component mounter 10. The tray adapter 20 is a flat, plate-like member having an octagonal shape in a plan view, and includes a placement surface 22 and a display unit 30. The tray adapter 20 is placed on the upper surface of a pallet 24 having a rectangular shape in a plan view. The tray adapter 20 is held together with the pallet 24 by the component holder 19. The pallet 24 is a flat, plate-like member that supports the tray adapter 20 from below. Note that the shape of the tray adapter 20 in a plan view is not limited to an octagonal shape. The tray adapter 20 may have, for example, a rectangular shape or a circular shape.

[0031] The placement surface 22 is the upper surface of the tray adapter 20, which is made of a magnetic material. As shown in FIG. 1 , for example, five trays 5F are arranged on the placement surface 22 along the arrangement direction D1. The trays 5F are rectangular, flat members that hold multiple components 4F. The multiple components 4F are arranged on the trays 5F. After moving above the tray adapter 20, the mounting head 17 picks up the components 4F on the trays 5F with a nozzle, moves above the board 2, and mounts the components 4F on the board 2.

[0032] The display unit 30 is disposed at a position facing the board conveyor 18 on the placement surface 22. That is, the display unit 30 is located at the rear end of the placement surface 22 (i.e., the upper side of the paper in FIG. 1). The display unit 30 displays component information about a component (e.g., 4F) arranged on the placement surface 22.

[0033] The tray adapter 20 is supplied to the mounter 10 together with the pallet 24 by the loader 26. The loader 26 moves in the X direction between the mounter 10 and a storage cabinet (not shown) while holding multiple tray adapters 20 stacked in the vertical direction (i.e., toward the front and rear of the paper surface in FIG. 1). The loader 26 removes the tray adapter 20 together with the pallet 24 from the storage cabinet, moves toward the front of the mounter 10 (i.e., in the -Y direction), and supplies the tray adapter 20 to the mounter 10 in the supply direction D2. As a result, the tray adapter 20 is held in the component holder 19 together with the pallet 24. The component holder 19 is equipped with, for example, a mass sensor and can detect that the tray adapter 20 has been supplied together with the pallet 24. The component holder 19 is configured to be able to communicate with the control device 40, and when the mass sensor detects that the tray adapter 20 has been supplied, the component holder 19 transmits a supply signal indicating that the tray adapter 20 has been supplied to the control device 40. In a modified example, the component holder 19 may detect that the tray adapter 20 has been supplied using an infrared sensor instead of the mass sensor.

[0034] The control device 40 controls each unit of the component mounter 10. The control device 40 is configured to be able to communicate with, for example, the XY robot 11, the camera 15, the head unit 16, the mounting head 17, and the board conveyor 18 in addition to the component holder 19 described above. The control device 40 includes a CPU 42 and a memory 44. The memory 44 is configured with a volatile memory and a non-volatile memory. The memory 44 stores a program 46 and a reference number "3." The program 46 includes, for example, a program for mounting a component 4F on the board 2. The program 46 also includes a program for executing the placement determination process described with reference to FIG. 4. The CPU 42 executes various processes in accordance with the program 46. In this embodiment, the program 46 is pre-stored in the memory 44 before shipping the component mounter 10. In a modified example, the program 46 may be installed in the memory 44 later, for example, from an external server.

[0035] The reference number "3" indicates the number of recesses L1 to L3 (see FIG. 3) provided on each of the placement references 7B, 7F, 7S, and 7T described later. In this embodiment, the reference number "3" is stored in advance in the memory 44 when the mounter 10 is shipped. In a modified example, the reference number "3" may be installed in the memory 44 later from an external server, or may be input later by an operator, for example.

[0036] The detailed structure of the tray adapter 20 will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, the tray adapter 20 is configured to hold trays 5S and 5T in addition to the tray 5F described above. As shown in FIG. 2, the trays 5F, 5S, and 5T have different sizes. While not particularly limited, the size of tray 5F is, for example, 2 inches, the size of tray 5S is, for example, 3 inches, and the size of tray 5T is, for example, 4 inches. The trays 5F, 5S, and 5T of different sizes hold different types of components 4F, 4S, and 4T, respectively. Tray 5F holds components 4F, tray 5S holds components 4S, and tray 5T holds components 4T. FIG. 2(A) is a partially enlarged view of the tray adapter 20 when five trays 5F are arranged on the arrangement surface 22 along the arrangement direction D1. FIG. 2(B) is a partially enlarged view of the tray adapter 20 when three trays 5S are arranged on the arrangement surface 22 along the arrangement direction D1. FIG. 2(C) shows a partially enlarged view of the tray adapter 20 when two trays 5T are arranged on the arrangement surface 22 along the arrangement direction D1.

[0037] As can be seen by comparing Figures 2(A) to 2(C), the trays 5F, 5S, and 5T differ in size, and therefore the number and positions of the trays 5F, 5S, and 5T arranged on the arrangement surface 22 differ. As shown in Figure 2(A), the trays 5F are arranged at a pitch P1 along the arrangement direction D1, with reference to a reference point B1. As shown in Figure 2(B), the trays 5S are arranged at a pitch P2 along the arrangement direction D1, with reference to a reference point B1. As shown in Figure 2(C), the trays 5T are arranged at a pitch P3 along the arrangement direction D1, with reference to a reference point B1. The pitch P2 is longer than the pitch P1 but shorter than the pitch P3. For this reason, in the prior art, the trays 5F, 5S, and 5T were supplied to the mounter 10 using dedicated tray adapters 20 corresponding to each of the trays 5F, 5S, and 5T.

[0038] In this embodiment, multiple placement references 7B, 7F, 7S, and 7T are formed on the placement surface 22 of the tray adapter 20. As shown in the plan view at the center of FIG. 3, each placement reference 7B, 7F, 7S, and 7T has three recesses L1 to L3. That is, the placement references 7B, 7F, 7S, and 7T do not protrude upward from the placement surface 22. The placement reference 7B is located furthest in the +X direction among the placement references 7B, 7F, 7S, and 7T and serves as the reference for each of the placement references 7F, 7S, and 7T. The placement reference 7B has a circular recess L1 located at a reference point B1, a circular recess L2 arranged at a pitch P4 in the -Y direction from the reference point B1, and a circular recess L3 arranged at a pitch P4 in the -X direction from the reference point B1. The other placement references 7F, 7S, and 7T also have recesses L1 to L3 arranged in a similar manner. The placement references 7F, 7S, and 7T are arranged at different pitches along the arrangement direction D1. The placement references 7F are arranged at a pitch P1 along the arrangement direction D1 with reference to the reference point B1, the placement references 7S are arranged at a pitch P2 along the arrangement direction D1 with reference to the reference point B1, and the placement references 7T are arranged at a pitch P3 along the arrangement direction D1 with reference to the reference point B1. That is, the placement references 7F, 7S, and 7T are arranged on the arrangement surface 22 along the arrangement direction D1 at a pitch corresponding to the trays 5F, 5S, and 5T, respectively.

[0039] As shown in FIG. 3, for example, a pin 8 is arranged on the placement reference 7B. As shown in the cross-sectional view taken along the line B-B in FIG. 3, the pin 8 has a cylindrical shape and fits into the recess L2 of the placement reference 7B. This allows the pin 8 to be accurately fixed to the placement reference 7B. Furthermore, the pin 8 is made of metal and is fixed to the recesses L1 to L3 of the placement reference 7B by the magnetic force of the placement surface 22 made of a magnetic material. The pin 8 extends upward beyond the placement surface 22. As a result, the pin 8 abuts against the side surface S1 of the tray 5F in the +X direction (i.e., to the right in FIG. 2). This prevents the position of the tray 5F from shifting in the +X direction. The pin 8 arranged in the recess L3 abuts against the side surface S1 of the tray 5F in the +Y direction (i.e., upward in FIG. 3), preventing the position of the tray 5F from shifting in the +Y direction. In this way, by bringing the two pins 8 into contact with the side surface S1 of the tray 5F, the tray 5F can be appropriately positioned with respect to the positioning reference 7B.

[0040] For example, when placing a tray 5F on the placement surface 22, as shown in FIG. 2(A), the worker places pins 8 on placement reference 7B and each placement reference 7F, and then places the tray 5F using the placement references 7B and 7F on which the pins 8 are placed as references. In this case, no pins 8 are placed on the other placement references 7S and 7T. Therefore, when placing the tray 5F on the placement surface 22, the worker can easily identify the placement reference 7F that corresponds to the tray 5F.

[0041] Furthermore, the worker places the tray 5F on the arrangement surface 22 so that the side surfaces S1 of the tray 5F in the +Y and +X directions are pressed against the pins 8, and then places the magnet 6, which supports the opposite side surface S1, on the arrangement surface 22. The magnet 6 has an L-shape and abuts against the side surfaces S1 of the tray 5F in the -Y direction (i.e., downward in the plane of FIG. 2) and the -X direction (i.e., leftward in the plane of FIG. 2). This prevents the position of the tray 5F from shifting on the arrangement surface 22. The worker similarly places multiple trays 5F on the arrangement surface 22. In this way, the worker can arrange five trays 5F on the arrangement surface 22 along the arrangement direction D1.

[0042] Similarly, when placing a tray 5S on the placement surface 22, as shown in FIG. 2(B), the worker places pins 8 only on the placement reference 7B and the placement reference 7S corresponding to the tray 5S, then places the tray 5S based on the placement reference 7B and the placement reference 7S, and then places the magnet 6. As a result, the area A1 where the tray 5F placed on the placement surface 22 based on the placement reference 7F abuts on the placement surface 22 is included in the area where the tray 5S placed on the placement surface 22 based on the placement reference 7S abuts on the placement surface 22 (i.e., the area surrounded by the outline of the tray 5S). Furthermore, as particularly shown in the B-B cross-sectional view of FIG. 3, some recesses L2 of the placement reference 7F where no pins 8 are placed are covered from above by the tray 5S. In other words, the tray 5S is placed above the placement reference 7F for placing the tray 5F. Similarly, as shown in Figure 2(A), tray 5F covers the recesses L2 of placement references 7S and 7T, and as shown in Figure 2(C), tray 5T covers part of the recesses L2 of placement references 7F and 7S.

[0043] 2(C), when placing tray 5T on placement surface 22, the worker places pins 8 only on placement reference 7B and placement reference 7T corresponding to tray 5T, then places tray 5T based on placement reference 7B and placement reference 7T, and further places magnet 6. As a result, area A2 where tray 5S placed on placement surface 22 based on placement reference 7S abuts against placement surface 22 is included in the area where tray 5T placed on placement surface 22 based on placement reference 7T abuts against placement surface 22 (i.e., the area surrounded by the outline of tray 5T).

[0044] Next, the display unit 30 will be described. The component information displayed on the display unit 30 includes serial numbers SN1, SN2, and SN3 of the components 4F, 4S, and 4T arranged on the arrangement surface 22, respectively. Furthermore, the component information includes a type (e.g., T1) indicating the type of tray adapter 20, a tray number (e.g., 5) indicating the number of trays that can be arranged on the arrangement surface 22, and a pitch (e.g., pitch P1) at which the trays are arranged along the arrangement direction D1. The serial numbers are information for identifying the components 4F, 4S, and 4T. For example, type T1 indicates that the tray adapter 20 accommodates a 2-inch tray 5F, type T2 indicates that the tray adapter 20 accommodates a 3-inch tray 5S, and type T3 indicates that the tray adapter 20 accommodates a 4-inch tray 5T. Thus, the component information is different for each of the components 4F, 4S, and 4T. While the component information is displayed as a barcode in this embodiment, in a modified example, it may be displayed as another two-dimensional code, a numeric string, or a character string. Furthermore, the placement surface 22 may be configured so that, in addition to the trays 5F, 5S, and 5T, trays conforming to the Joint Electron Device Engineering Council (JEDEC) standard can be placed thereon.

[0045] As shown in FIG. 2(A), when tray 5F is arranged on arrangement surface 22, display unit 30 displays code C1. Code C1 indicates serial number SN1 of component 4F, type T1 of tray adapter 20, the number of trays 5F mounted "5," and the pitch P1 at which trays 5F are arranged on arrangement surface 22. In contrast, as shown in FIGS. 2(B) and 2(C), when tray 5S is arranged on arrangement surface 22, display unit 30 displays code C2, and when tray 5T is arranged on arrangement surface 22, display unit 30 displays code C3. Code C2 indicates serial number SN2, type T2, number of trays mounted "3," and pitch P2 of component 4S, and code C3 indicates serial number SN3, type T3, number of trays mounted "2," and pitch P3 of component 4T. In this way, the tray adapter 20 can display component information about the components 4F, 4S, and 4T placed on the placement surface 22 on the display unit 30. This allows, for example, the control device 40 of the component mounter 10 to control the position to which the nozzle of the mounting head 17 is moved based on the information displayed on the display unit 30. This allows the mounting head 17 to properly pick up the components 4F, 4S, and 4T.

[0046] As shown in FIG. 3, the display unit 30 includes a case 32 and a display member 36. The case 32 has a box-like shape extending in the ±X directions and houses the display member 36. A rectangular opening 34 is formed in the top surface of the case 32. A lever 38 is disposed on the side surface of the case 32 facing the +Y direction. The lever 38 extends in the +Y direction. As shown in the AA cross-sectional view of FIG. 3, the case 32 is held on the placement surface 22 so as to be movable along the display direction D3. An operator grasps the lever 38 and moves the case 32 along the display direction D3. As a result, the opening 34 of the case 32 also moves along the display direction D3.

[0047] The display member 36 is a plate-shaped member extending in the display direction D3. A plurality of codes C1, C2, and C3 are arranged on the upper surface of the display member 36. The codes C1, C2, and C3 are arranged along the display direction D3. In the example shown in FIG. 3, among the codes C1, C2, and C3, only the central code C2 is exposed through the opening 34 of the case 32. That is, the upper surface of the case 32 covers the codes C1 and C3 other than code C2, and as a result, only code C2 is displayed. As shown in FIG. 2(A), when arranging the tray 5F on the placement surface 22, the operator uses the lever 38 to move the case 32 and position the opening 34 above code C1. As a result, only code C1 is exposed through the opening 34 of the case 32, and only code C1 is displayed. In this way, even when multiple types of trays 5F, 5S, 5T holding multiple types of components 4F, 4S, 4T are placed on the placement surface 22, it is possible to display only the code (e.g., C1) corresponding to the component (e.g., 4F) held in the tray (e.g., 5F) placed on the placement surface 22. In this way, the tray adapter 20 of this embodiment allows trays 5F, 5S, 5T of different sizes to be placed on the common placement surface 22 by utilizing the multiple placement references 7B, 7F, 7S, 7T and the display unit 30 provided on the placement surface 22. Therefore, unlike the prior art, there is no need to provide dedicated tray adapters 20 corresponding to each of the trays 5F, 5S, 5T, and, for example, it is possible to reduce the space required to store each tray adapter.

[0048] 4, the placement determination process executed by the CPU 42 of the control device 40 of the component mounter 10 will be described. The placement determination process is a process for determining whether the tray placed in the tray adapter 20 matches the content indicated by the code displayed on the display unit 30. The CPU 42 executes the placement determination process in response to receiving the above-mentioned supply signal from the component holding unit 19. That is, the CPU 42 executes the placement determination process in response to the tray adapter 20 being supplied to the component holding unit 19 together with the pallet 24 from the loader 26. In a modified example, the CPU 42 may execute the placement determination process when it receives a completion signal from the loader 26 indicating that the supply of the tray adapter 20 is complete.

[0049] In S10, the CPU 42 uses the XY robot 11 to move the camera 15 to above the tray adapter (for example, 20).

[0050] In S12, CPU 42 transmits an image capture instruction to camera 15. As a result, camera 15 captures an image of the tray adapter supplied to component holder 19 by loader 26. Hereinafter, the tray adapter captured by camera 15 in S12 may be referred to as the "target tray adapter."

[0051] In S14, the CPU 42 receives an image of the target tray adapter from the camera 15.

[0052] Furthermore, in S20, the CPU 42 analyzes the code included in the image of the display unit 30 of the target tray adapter received in S14, thereby enabling the CPU 42 to obtain the serial number of the part to be placed in the target tray adapter, the type of the target tray adapter, the number of trays mounted, and the pitch.

[0053] In S22, the CPU 42 identifies the number of pins 8 included in the image of the target tray adapter received in S14.

[0054] In S24, the CPU 42 multiplies the number of trays loaded obtained in S20 by a reference number (e.g., 3) stored in the memory 44 to calculate an appropriate number (e.g., 15) that is the number of pins to be placed in the target tray adapter.

[0055] In S30, the CPU 42 determines whether the appropriate number of pins calculated in S24 matches the number of pins included in the image of the target tray adapter identified in S22. If the two numbers match (YES in S30), the CPU 42 determines that the tray is properly placed in the target tray adapter and ends the processing of FIG. 4. If the two numbers do not match (NO in S30), the CPU 42 determines that the tray is not properly placed in the target tray adapter and proceeds to S40. As described above, the pins 8 are made of metal, and the placement surface 22 is made of a magnetic material. For this reason, the image of the pins 8 is easily distinguishable from the image of the placement surface 22. Because the CPU 42 determines whether the tray is properly placed in the target tray adapter based on the image of the pins 8, it can more accurately determine whether the tray is properly placed in the target tray adapter than, for example, a configuration in which the determination is made based on images of the recesses L1 to L3.

[0056] In S40, the CPU 42 executes an interruption process. The interruption process is a process for interrupting mounting by the mounter 10. The interruption process further includes notifying the operator that the tray is not properly positioned in the target tray adapter. This allows the operator to know that the tray is not properly positioned in the target tray adapter and that the mounting process by the mounter 10 has been interrupted. This allows the operator to, for example, check the target tray adapter and appropriately correct the tray position.

[0057] (Effects of this embodiment) In the tray adapter 20 of this embodiment, the placement references 7B, 7F, 7S, and 7T for placing the trays 5F, 5S, and 5T are arranged on the placement surface 22, so there is no need to provide placement references outside the placement surface 22. Furthermore, the placement references 7B, 7F, 7S, and 7T are recesses L1 to L3 that do not protrude upward from the placement surface 22, and for example, the tray 5S is placed on the placement surface 22 so as to cover one recess L2 of the placement reference 7F (see FIG. 3 in particular). In the tray adapter 20 of this embodiment, the tray 5S can be placed above the placement reference 7F that corresponds to the tray 5F, so the size of the tray adapter 20 can be made smaller than in the prior art.

[0058] (Correspondence) The placement references 7B and 7F are an example of a "first placement reference," and the placement references 7B and 7S are an example of a "second placement reference." 2 inches and 3 inches are examples of a "first size" and a "second size," respectively. The display member 36 is an example of a "member." The case 32 is an example of an "exposure mechanism." The camera 15 is an example of an "imaging device." The interruption process of S40 in FIG. 4 is an example of a "predetermined process."

[0059] (Second Example) A tray adapter 20 of a second embodiment will be described with reference to Fig. 4. In this embodiment, the control device 40 of the mounter 10 stores the coordinates (X1, X2) of the reference point B1 and an equation (Y=0) indicating the arrangement direction D1 instead of the reference number "3" described above (see Fig. 1). Therefore, in this embodiment, the processes of S22 to S30 executed in the placement determination process of Fig. 4 differ from those of the first embodiment described above.

[0060] In S22, the CPU 42 of this embodiment identifies the coordinates of the positions of the pins 8 included in the image of the target tray adapter based on the image of the target tray adapter.

[0061] In S24, the CPU 42 calculates appropriate coordinates, which are the coordinates where the pins 8 should be placed, based on the coordinates (X1, Y1) of the reference point B1 in the memory 44, an equation (Y=0) indicating the arrangement direction D1, and the number of trays and pitch acquired in S20. The appropriate coordinates indicate the coordinates where the pin 8 should be placed in the recess L1 corresponding to the reference point B1, among the three recesses L1 to L3 included in each of the placement references 7F, 7S, and 7T.

[0062] In S30, the CPU 42 further determines whether all of the appropriate coordinates calculated in S24 are included in the coordinates of pins 8 included in the image of the target tray adapter identified in S22. If all of the appropriate coordinates are included in the coordinates of pins 8 in the image of the target tray adapter (YES in S30), the CPU 42 ends the processing of FIG. 4, and if all of the appropriate coordinates are not included in the coordinates of pins 8 in the image of the target tray adapter (NO in S30), the CPU 42 proceeds to S40. This makes it possible to determine whether the tray is properly positioned in the target tray adapter based on the position of pins 8, and to execute interrupt processing if the tray is not properly positioned. In this embodiment, the position indicated by the appropriate coordinates is an example of a "proper position," and the number of trays mounted and the pitch included in the code are examples of "proper position information."

[0063] Points to note about this embodiment are described below. Pins 8 do not necessarily have to be placed on the placement references 7B, 7F, 7S, and 7T. In that case, for example, the placement references 7B, 7F, 7S, and 7T may simply be marks placed on the placement surface 22. In this modification, the tray sizes corresponding to the placement references 7F, 7S, and 7T may be written on the placement surface 22. In a further modification, the placement references 7F, 7S, and 7T may be marks of different colors or may be placed in different positions. In other words, it is sufficient that the placement references 7F, 7S, and 7T are configured so that they can be identified by the operator.

[0064] The placement references 7B, 7F, 7S, and 7T may not have the recesses L1 to L3, and the pins 8 may be fixed only by magnetic force.

[0065] The tray adapter 20 does not necessarily have to include the display unit 30. In this modification, for example, any of the codes C1 to C3 may be arranged on the arrangement surface 22 afterwards.

[0066] The display member 36 does not necessarily have to have multiple codes C1 to C3 arranged on it. For example, the display unit 30 may be configured so that a display member 36 on which code C1 is arranged, a display member 36 on which code C2 is arranged, and a display member 36 on which code C3 is arranged can be selectively attached and detached. In a further variation, the display unit 30 may include a portion of a circular display member 36 on which multiple codes C1 to C3 are arranged along the outer periphery. In this case, one of the codes C1 to C3 may be exposed by rotating the circular display member 36.

[0067] The control device 40 of the component mounter 10 does not need to execute the placement determination process of Fig. 4. In another modified example, when the number of pins 8 included in the image of the target tray adapter matches the appropriate number in S30 of the first embodiment, the CPU 42 of the control device 40 may further determine whether all of the appropriate coordinates are included in the coordinates of the pins 8 in the image of the target tray adapter in S30 of the second embodiment. In this modified example, the CPU 42 may perform the interruption process of S40 when the number of pins 8 does not match the appropriate number, or when the number of pins 8 matches the appropriate number but not all of the appropriate coordinates are included in the coordinates of the pins 8 in the image of the target tray adapter.

[0068] Although specific examples of the technology disclosed in this specification have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and variations of the specific examples exemplified above. Furthermore, the technical elements described in this specification or drawings exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Furthermore, the technology exemplified in this specification or drawings simultaneously achieves multiple objectives, and achieving one of those objectives itself has technical utility.

[0069] This specification discloses a technical idea in which "the component supply device according to claim 1" is changed to "the calculation method according to any one of claims 1 to 3" in claim 4. Similarly, a technical idea in which "the component supply device according to claim 4" is changed to "the component supply device according to claim 4 or 5" in claim 6 is also disclosed. [Explanation of symbols]

[0070] 2: Circuit board 4F,4S,4T: Parts 5F, 5S, 5T: Tray 6: Magnet 7B,7F,7S,7T: Placement standards 8: Pin 10: Component mounting machine 11: XY robot 12: Y-axis slider 14: X-axis slider 15: Camera 16: Head unit 17: Mounting head 18: PCB conveyor 19: Parts holder 20: Tray adapter 22: Placement surface 24: Palette 26: Loader 30:Display section 32: Case 34:Aperture 36: Display member 38: Lever 40: Control device 42: CPU 44: Memory 46: Program A1,A2:Area B1:Reference point C1, C2, C3: chords D1: Array direction D2: Supply direction D3: Display direction L1, L2, L3: recess P1, P2, P3, P4: Pitch S1: Side SN1, SN2, SN3: Serial numbers T1, T2, T3: Type

Claims

1. A component supplying device that supplies components to a component mounter that mounts the components on a board, an arrangement surface on which the trays for holding the components can be arranged along a first direction; On the placement surface, placement references that do not protrude upward from the placement surface and indicate placement positions corresponding to each of the plurality of sizes of the tray are arranged along the first direction, the plurality of sizes of the tray include at least a first size and a second size larger than the first size; the placement references are configured so that when a tray of the first size is placed on the placement surface based on a first placement reference corresponding to the first size, at least a part of an area on the placement surface that abuts against the tray of the first size is included in an area on the placement surface that abuts against the tray of the second size when the tray of the second size is placed on the placement surface based on a second placement reference corresponding to the second size, the tray of the second size arranged on the arrangement surface in accordance with the second arrangement reference covers at least a part of the first arrangement reference; Parts supply device.

2. the component supply device further includes a pin that is detachable from the placement reference; When the pin is attached to the placement reference, a side surface of the tray abuts against the pin. The component supply device according to claim 1 .

3. the placement reference includes a recess formed on the placement surface, The pin is fixed to the placement surface by fitting into the recess.

3. The component supply device according to claim 2.

4. the component supply device further includes a display unit that displays a code indicating component information about the component held on the tray arranged on the arrangement surface, The component supply device according to claim 1 .

5. the tray holds different types of parts for each of the plurality of sizes, The code is set for each type of the part, The display unit a member on which a plurality of the codes set for each type of the part are arranged; an exposure mechanism that exposes only one cord to the outside among the plurality of cords arranged on the member; Equipped with 5. The component supply device according to claim 4.

6. the component mounter further includes an imaging device configured to be able to capture an image of the placement surface and the display unit, the component information includes at least one of appropriate position information indicating appropriate positions of the placement standards that are exposed on the placement surface when the tray is appropriately placed on the placement surface, and appropriate number information indicating an appropriate number of the placement standards that are exposed on the placement surface when the tray is appropriately placed on the placement surface, a predetermined process is executed when the appropriate position indicated by the appropriate position information or the appropriate number indicated by the appropriate number information included in the component information represented by the code in the image captured by the imaging device does not match the position or the number of the placement reference included in the placement surface in the image captured by the imaging device, when the appropriate position or the appropriate number included in the part information represented by the code in the image captured by the imaging device matches the position or the number of the placement reference included in the placement surface in the image captured by the imaging device, the predetermined process is not executed.

5. The component supply device according to claim 4.

7. the component supply device further includes a pin that is detachable from the placement reference; The control device executing the predetermined process when the appropriate position or the appropriate number included in the component information represented by the code in the image captured by the imaging device does not match the position or the number of the pins included on the placement surface in the image captured by the imaging device; when the appropriate position or the appropriate number included in the component information represented by the code in the image captured by the imaging device matches the position or the number of the pins included on the placement surface in the image captured by the imaging device, the predetermined process is not executed.

7. The component supply device according to claim 6.

8. A component supplying device that supplies components to a component mounter that mounts the components on a board, an arrangement surface on which a plurality of types of trays for holding the components can be arranged; a display unit that displays a code indicating component information about the component held in the tray placed on the placement surface; Equipped with the tray holds different types of parts for each of the plurality of types, The code is set for each type of the part, The display unit a member on which a plurality of the codes set for each type of the part are arranged; an exposure mechanism that exposes only one cord to the outside among the plurality of cords arranged on the member; Equipped with Parts supply device.

9. A component supply method for placing a tray for supplying components on a placement surface of a component mounter that mounts components on a board, comprising: On the placement surface, placement references that do not protrude in a direction intersecting the placement surface and indicate placement positions corresponding to each of a plurality of sizes of the tray are arranged along a first direction, the plurality of sizes of the tray include at least a first size and a second size larger than the first size; The component supply method includes: a first step of arranging a tray of the first size on the arrangement surface based on a first arrangement reference corresponding to the first size; a second step of arranging the tray of the second size on the arrangement surface based on a second arrangement reference corresponding to the second size; Including, at least a part of an area where the tray of the first size placed on the placement surface in the first step abuts against the placement surface is included in an area where the tray of the second size placed on the placement surface in the second step abuts against the placement surface; the tray of the second size arranged on the arrangement surface in accordance with the second arrangement reference in the second step covers at least a part of the first arrangement reference; Parts supply method.

Images