Component mounting system

Abstract

This technology provides a way to prevent cables from coming into contact with the underside of the mounting module. [Solution] The component mounting machine comprises a mounting module having a connector on its lower surface, a base having a first upper surface capable of supporting the mounting module from below, and a cable that detachably connects the connector of the mounting module to a device located within the base. The trolley has a second upper surface capable of supporting the mounting module. The mounting module is configured to be movable between the first upper surface and the second upper surface along the first and second upper surfaces. When the mounting module moves from the first upper surface to a predetermined position on the second upper surface, the connector is positioned above the second upper surface, and the cable is attached to and detached from the connector of the mounting module. The component mounting system further comprises a limiting mechanism that restricts the mounting module from moving from a predetermined position to the first upper surface in response to the cable being detached from the connector of the mounting module located at a predetermined position on the second upper surface.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a component mounting system.

Background Art

[0002] The electronic component mounting machine of Patent Document 1 includes a mounting machine main body that mounts electronic components on a substrate, and a carriage. The mounting machine main body includes a base, and a mounting module that is disposed on the upper surface of the base and is connected to the base by a cable. The mounting module moves from the upper surface of the base along a pair of guide rails to the upper surface of the carriage, and also moves from the upper surface of the carriage to the upper surface of the base. Thereby, the mounting module is recovered from the base to the carriage, and is supplied from the carriage to the base.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the electronic component mounting machine of Patent Document 1, when recovering the mounting module from the base to the carriage, after moving the mounting module from the base to an empty carriage, the cable is removed from the mounting module. Thereby, the movement of the mounting module by the carriage becomes possible. Since the cable removed from the mounting module extends from the upper surface of the base to the upper surface of the carriage, a part of the cable is located between the upper surface of the carriage and the lower surface of the mounting module. When the mounting module moves toward the base in a state where a part of the cable is disposed between the upper surface of the carriage and the lower surface of the mounting module, the cable may come into contact with the lower surface of the mounting module and be damaged. In this specification, a technique for preventing the cable from coming into contact with the lower surface of the mounting module is provided.

[0005] The component mounting system disclosed herein comprises a component mounting machine for mounting components onto a substrate, and a trolley movable around the component mounting machine. The component mounting machine comprises a mounting module having a connector on its lower surface, a base having a first upper surface capable of supporting the mounting module from below, and a cable detachably connecting the connector of the mounting module to a device located within the base. The trolley has a second upper surface capable of supporting the mounting module. The mounting module is configured to be movable along the first upper surface and the second upper surface between the first upper surface of the base and the second upper surface of the trolley. When the mounting module moves from the first upper surface to a predetermined position on the second upper surface, the connector of the mounting module is positioned above the second upper surface, and the cable is attached to and detached from the connector of the mounting module. The component mounting system further comprises a limiting mechanism that restricts the mounting module from moving from the predetermined position to the first upper surface in response to the cable being detached from the connector of the mounting module located at the predetermined position on the second upper surface.

[0006] The above component mounting system uses a limiting mechanism to restrict the movement of the mounting module from its predetermined position on the second upper surface of the bogie to the first upper surface of the base when a cable is disconnected from the mounting module's connector. This prevents cables positioned between the underside of the mounting module and the second upper surface of the bogie from coming into contact with the underside of the mounting module. [Brief explanation of the drawing]

[0007] [Figure 1] A perspective view of the component mounting system in the embodiment. [Figure 2] A cross-sectional view along line II-II in Figure 1. [Modes for carrying out the invention]

[0008] 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 usefulness individually or in various combinations, and are not limited to the combinations described in the claims at the time of filing.

[0009] In the component mounting system disclosed herein, the limiting mechanism may be provided on the trolley.

[0010] With this configuration, for example, the movement of the mounting module to the first upper surface can be restricted with a relatively simple configuration compared to a configuration where the mounting module has a restricting mechanism. Furthermore, by providing the restricting mechanism on a trolley used in common by multiple mounting modules, it is not necessary to provide a restricting mechanism for each of the multiple mounting modules, thereby reducing manufacturing costs.

[0011] In the component mounting system disclosed herein, the limiting mechanism may include a tray for arranging the cable removed from the connector of the mounting module located at the predetermined position, and a protrusion that protrudes to a predetermined height below the mounting module located at the predetermined position, depending on the arrangement of the cable in the tray. In this case, the protrusion may restrict the mounting module from moving to the first upper surface when it protrudes to the predetermined height.

[0012] With this configuration, when the cable is removed from the connector and placed in the tray, the protrusion extends to a predetermined height, restricting the mounted module from moving to the first upper surface. Therefore, with a relatively simple configuration, it is possible to restrict the mounted module from moving to the first upper surface when the cable is removed from the connector.

[0013] In the component mounting system disclosed herein, the tray and the protrusion may be positioned horizontally offset from each other. The limiting mechanism may further include a connecting member, one end of which is connected to the tray and the other end of which is connected to the protrusion; and a support member that rotatably holds the connecting member between an open position, where one end is held in a first position and the other end in a second position lower than the first position, and a limiting position, where one end is held in a third position lower than the first position and the other end in a fourth position higher than the second position. The support member may hold the connecting member in the open position when the cable is not placed on the tray, preventing the protrusion from protruding to the predetermined height, and may rotate the connecting member from the open position to the limiting position when the cable is placed on the tray, causing the protrusion to protrude to the predetermined height.

[0014] With this configuration, the support member allows the protruding portion to extend to a predetermined height using a relatively simple structure.

[0015] In the component mounting system disclosed herein, a magnet may be disposed at the other end of the connecting member for holding the connecting member in the open position. In this case, the connecting member may rotate from the open position to the restricted position against the magnetic force of the magnet when the cable is placed in the tray.

[0016] With this configuration, the magnet can reliably hold the connecting member in the open position. Therefore, for example, it is possible to prevent the connecting member from rotating to the restricted position even if the cable has not been removed from the connector.

[0017] In the component mounting system disclosed herein, the mounting module may move between the first upper surface and the second upper surface by a pair of wheels. In this case, the base may include a support surface located between the pair of wheels that supports the cable from below, and the support surface may be located above the second upper surface.

[0018] A cable supported by a support surface located above the second upper surface is likely to interfere with the lower surface of the mounting module. Therefore, the technology disclosed in this specification is particularly beneficial in a component mounting system having such a configuration.

[0019] In the member mounting system disclosed in this specification, the connector may be provided in a box protruding downward from the lower surface of the mounting module.

[0020] A box protruding downward from the lower surface of the mounting module is likely to interfere with the cable. Therefore, the technology disclosed in this specification is particularly beneficial in a component mounting system having such a configuration.

[0021] In the member mounting system disclosed in this specification, a cushioning material may be arranged on the side surface of the base side of the box.

[0022] According to such a configuration, even if the side surface of the box interferes with the cable, the damage applied to the cable can be reduced by the cushioning material.

[0023] In the member mounting system disclosed in this specification, the device arranged in the base may include a power source for operating the mounting module.

[0024] A relatively large current flows through the cable connecting the power source and the mounting module. The technology disclosed in this specification is particularly beneficial in a component mounting system having such a configuration.

[0025] (Embodiment) FIG. 1 shows a perspective view of a component mounting system 100 of this embodiment. The component mounting system 100 includes a component mounter 10 and a cart 40. In FIG. 1, one component mounter 10 is shown, but the component mounting system 100 may include a plurality of component mounters 10.

[0026] The component mounting machine 10 is a device that mounts electronic components onto a circuit board using a mounting head 28 (see Figure 2). The component mounting machine 10 is also called an electronic component mounting device or chip mounter. Typically, the component mounting machine 10 is installed together with other devices such as a solder printing machine and a circuit board inspection machine to form a series of mounting lines.

[0027] The component mounting machine 10 comprises a mounting module 20 and a base 30. A mounting head 28 (see Figure 2) is housed inside the casing 20C of the mounting module 20. The mounting head 28 moves along the XY plane inside the casing 20C to mount electronic components onto the circuit board. Wheels 26 are positioned on both sides of the casing 20C of the mounting module 20. The mounting module 20 moves along the transport direction D1 from the installation position P1 on the upper surface 32 of the base 30 to the transport position P2 on the upper surface 42 of the trolley 40, using the wheels 26. Furthermore, the mounting module 20 moves along the installation direction D2 from the transport position P2 to the installation position P1, using the wheels 26. In this embodiment, each direction D1 and D2 is parallel to the Y axis. That is, each direction D1 and D2 extends along the horizontal direction. For the sake of understanding, the mounting module 20 is shown as a dashed line in Figure 1. In the modified version, the mounting module 20 may be moved between the installation position P1 and the transport position P2 by, for example, a pair of guide rails instead of wheels 26, or by a pair of belt conveyors.

[0028] The base 30 supports the mounting module 20 located at installation position P1 from below. A power supply 34 is located inside the casing 30C of the base 30. The power supply 34 supplies power to operate, for example, the mounting head 28 of the mounting module 20. A cable support surface 38 is located at the center of the base top surface 32 of the base 30 in the X direction. The cable support surface 38 is located above the base top surface 32. An opening 39 is provided in the center of the cable support surface 38, which connects the inside and outside of the casing 30C of the base 30.

[0029] The trolley 40 transports the mounting module 20 of the component mounting machine 10. The trolley 40 is equipped with a handle 44, wheels 46, and a limiting mechanism 60. The operator moves the trolley 40 by gripping the handle 44. For example, during maintenance of the mounting module 20, the operator releases the fixing of the mounting module 20 to the base 30 and moves the mounting module 20 from the installation position P1 towards the transport position P2 along the transport direction D1. After that, the operator moves the mounting module 20 to a work area (not shown) for performing maintenance using the trolley 40.

[0030] A box 22 is located on the lower surface 21 of the casing 20C of the mounting module 20. A connector 24, which connects to the cable 50, is located on the side of the box 22 in the installation direction D2 (i.e., to the left in the paper of Figure 1). Note that in Figure 1, the box 22 of the mounting module 20 located at installation position P1 is not shown.

[0031] The cable 50 consists of multiple wires arranged in a strip in the X direction and is covered by a flexible cover (e.g., Cable Bearing®). Although not shown in the illustration, the cable 50 also has an excess length inside the casing 30C of the base 30 and is expandable and contractible along the directions D1 and D2. In addition to the wires that supply power from the power supply 34 to the mounting module 20, the cable 50 may also include, for example, communication lines. Furthermore, the cable 50 may include air piping connecting a compressor (not shown) located inside the casing 30C of the base 30 to the suction nozzle (not shown) of the mounting head 28.

[0032] Referring to Figures 1 and 2, the details of the cable 50 at each position P1 and P2 will be described. Figure 2(A) shows the state of the component mounting system 100 when the mounting module 20 is located at installation position P1. Figure 2(B) shows the state of the component mounting system 100 when the mounting module 20 has moved to transport position P2. Figure 2(C) shows the state of the component mounting system 100 after the mounting module 20 has moved to transport position P2 and the cable 50 has been removed from the connector 24.

[0033] As shown in Figure 2(A), the cable 50 is exposed to the outside of the base 30 through an opening 39 in the cable support surface 38 from the power supply 34 and connected to the connector 24 of the mounting module 20. This supplies power from the power supply 34 to the mounting module 20. The operator grasps the handle 44 and positions the trolley 40 on the transport direction D1 side of the component mounting machine 10.

[0034] The worker moves the mounting module 20 from the installation position P1 on the base 30 to the transport position P2 on the trolley 40. As a result, as shown in Figure 2(B), the cable 50 is pulled by the connector 24 of the mounting module 20 and extends along the cable support surface 38 of the base 30 in the transport direction D1.

[0035] As shown in Figure 2(C), after the mounting module 20 has moved to the installation position P1, the worker disconnects the cable 50 from the connector 24. This separates the mounting module 20 from the base 30, allowing the mounting module 20 to be moved to another location by the trolley 40.

[0036] Conventionally, the worker would grasp the handle 44 of the trolley 40 and move the trolley 40 with the end of the cable 50, which had been removed from the connector 24, positioned on the trolley top surface 42 of the trolley 40. The mounting module 20 has a mass of several hundred kilograms, for example. Therefore, even when the worker moves the trolley 40 supporting the mounting module 20 in the transport direction D1, they sometimes move the trolley 40 towards the base 30 in the installation direction D2 and use the rebound to move the trolley 40. In this case, the mounting module 20, which is positioned on the trolley top surface 42 of the trolley 40, moves in the installation direction D2 on the trolley top surface 42 due to its inertia, and there is a risk that the lower surface 21 of the mounting module 20 and the cable 50 will come into contact.

[0037] In particular, in this embodiment, since the cable support surface 38 of the base 30 is located above the base upper surface 32, the distance between the cable support surface 38 of the base 30 and the lower surface 21 of the mounting module 20 is smaller than the distance between the base upper surface 32 and the lower surface 21. Therefore, the lower surface 21 of the mounting module 20 is more likely to come into contact with the cable 50. Furthermore, since a box 22 that protrudes further downward is provided on the lower surface 21 of the mounting module 20, the gap C1 (see enlarged view in Figure 2(C)) between the lower surface of the box 22 and the cable support surface 38 becomes even narrower. Therefore, the lower surface of the box 22 is more likely to come into contact with the cable 50. Moreover, since the cable 50 connects the mounting module 20 and the power supply 34, a relatively large current flows through the cable 50. Therefore, it is especially important to reduce damage to the cable 50.

[0038] As shown in Figures 1 and 2, the limiting mechanism 60 is positioned on the upper surface 42 of the trolley 40. When the trolley 40 is positioned in the transport direction D1 of the component mounting machine 10, the limiting mechanism 60 of the trolley 40 is positioned so as to overlap with the opening of the cable support surface 38 of the base 30 in the transport direction D1. That is, the limiting mechanism 60 is positioned on the path through which the cable 50 extends. Here, the trolley 40 can transport multiple mounting modules 20 of the component mounting machine 10. Therefore, by positioning the limiting mechanism 60 on the trolley 40, the number of limiting mechanisms 60 can be reduced and the configuration can be simplified compared to, for example, a configuration in which a limiting mechanism is placed for each of the multiple mounting modules 20.

[0039] An enlarged view of the limiting mechanism 60 is shown above Figure 2(A). The limiting mechanism 60 comprises a tray 62, a connecting member 64, a support member 66, a protrusion 68, and a magnet 69. The tray 62 is a flat plate-shaped member with upwardly extending side walls at both ends in the Y direction. The ends of the removed cable 50 are placed on the tray 62. The connecting member 64 comprises a first end E1 connected to the tray 62 and a second end E2 connected to the protrusion 68. The connecting member 64 extends in the transport direction D1 and connects the tray 62 and the protrusion 68. That is, the tray 62 and the protrusion 68 are positioned offset from each other in the transport direction D1.

[0040] The connecting member 64 is a flat plate-shaped member. Between the tray 62 and the support member 66, the connecting member 64 is inclined downward as it moves in the transport direction D1. Between the support member 66 and the protrusion 68, the connecting member 64 extends along the transport direction D1. In other words, the connecting member 64 is bent at the position where the support member 66 is positioned.

[0041] The protruding portion 68 comprises a main body portion extending upward and a rim portion extending in the transport direction D1 from the upper end of the main body portion. The magnet 69 is positioned across the lower surface of the protruding portion 68 and the lower surface of the connecting member 64. The magnet 69 is a flat plate magnet. In the modified version, the magnet 69 may be positioned only on the lower surface of the connecting member 64, or only on the lower surface of the protruding portion 68.

[0042] The support members 66 rotatably support the connecting member 64. The support members 66 are positioned on both sides of the connecting member 64 in the X direction and have recesses facing each other. The side of the connecting member 64 facing the support members 66 is provided with a projection that is inserted into the recess of the support members 66. The support members 66 rotate the connecting member 64 between an open position A1 and a restricted position A2, using the projection of the connecting member 64 inserted into the recess of the support members 66 as a reference (axis of rotation). In a modified example, the support members 66 may have an axis that penetrates the connecting member 64 and extends in the X direction instead of a recess. In that case, the connecting member 64 may rotate with respect to this axis.

[0043] In the enlarged view of Figure 2(A), the connecting member 64 is held in the open position A1. In the open position A1, the first end E1 is located above the second end E2. That is, in the open position A1, the position of the second end E2 is lower than the position of the first end E1. As mentioned earlier, at the point shown in Figure 2(A), the mounting module 20 is located at the installation position P1 of the base 30. That is, the cable 50 is not placed on the tray 62 of the limiting mechanism 60. In this case, the magnet 69 of the limiting mechanism 60 is in contact with the metal base 49 provided on the upper surface 42 of the trolley 40. The connecting member 64 is securely held in the open position A1 by the magnetic force of the magnet 69. Note that, for example, as shown in Figure 2(B), in the open position A1, both the upper end of the tray 62 and the upper end of the protrusion 68 are located below the lower surface of the box 22 of the mounting module 20. Therefore, the implementation module 20 can move in the transport direction D1 from the installation position P1 toward the transport position P2.

[0044] Figure 2(C) below shows an enlarged view of the limiting mechanism 60 with the connecting member 64 held in the limiting position A2. In the limiting position A2, the position of the second end E2 is higher than the position of the first end E1. In the limiting position A2, the position of the first end E1 is lower than the position of the first end E1 in the open position A1. In the limiting position A2, the position of the second end E2 is higher than the position of the second end E2 in the open position A1.

[0045] As previously mentioned, in Figure 2(C), the mounting module 20 has moved to the transport position P2 on the upper surface 42 of the trolley 40, and the cable 50 has been removed from the connector 24. The worker places the cable 50, which has been removed from the connector 24, onto the tray 62 of the limiting mechanism 60. The mass of the cable 50 causes the tray 62 to move downward, and the connecting member 64 rotates from the open position A1 to the restricted position A2. As a result, the magnet 69 separates from the metal base 49, and the protrusion 68 rises above the lower end height H1 of the box 22 of the mounting module 20. That is, the connecting member 64 rotates from the open position A1 to the restricted position A2 against the magnetic force of the magnet 69. As a result, the box 22 of the mounting module 20, which is moving in the installation direction D2 toward the upper surface 32 of the base on the upper surface 42 of the trolley, comes into contact with the protrusion 68. Therefore, the mounting module 20 cannot move in the installation direction D2 after the box 22 comes into contact with the protrusion 68. In this way, the limiting mechanism 60 restricts the movement of the mounting module 20 in the installation direction D2 by causing the protruding portion 68 below the mounting module 20 to protrude upward beyond the lower end height H1 in response to the cable 50 being removed from the connector 24 and placed on the tray 62. For this reason, the movement of the mounting module 20 can be restricted with a simpler configuration compared to, for example, a configuration in which the removal of the cable 50 from the connector 24 is detected by a current sensor, and an actuator is activated in response to the detection of the removal to stop the driving of the wheels 26.

[0046] (Effects of this embodiment) Thus, in this embodiment, the component mounting system 100, by the limiting mechanism 60, restricts the movement of the mounting module 20 from the transport position P2 on the trolley top surface 42 of the trolley 40 to the base top surface 32 of the base 30 when the cable 50 is removed from the connector 24 of the mounting module 20 (see Figure 2(C)). This prevents the cable 50, which is positioned between the lower surface 21 of the mounting module 20 and the trolley top surface 42 of the trolley 40, from coming into contact with the box 22 on the lower surface 21 of the mounting module 20. Furthermore, as shown in Figure 2(C), cushioning material 29 is placed on the lower surface and the side in the installation direction D2 of the box 22. This reduces the damage to the cable 50 even if the side of the box 22 and the cable 50 come into contact.

[0047] (Correspondence) The base top surface 32 and the trolley top surface 42 are examples of the "first top surface" and "second top surface," respectively. The power supply 34 is an example of the "device." The transport position P2 is an example of the "predetermined position." The first end E1 and the second end E2 are examples of the "one end" and "the other end," respectively. The lower end height H1 is an example of the "predetermined height."

[0048] Points to note regarding this embodiment are described below. The limiting mechanism 60 does not have to be provided on the trolley 40. The limiting mechanism 60 may be provided, for example, on the mounting module 20 or on the base 30.

[0049] The limiting mechanism 60 may, instead of the protrusion 68, move a portion of the trolley upper surface 42 downward to form a recess, for example, in response to the placement of the cable 50 on the tray 62. The movement of the mounting module 20 to the base upper surface 32 may be restricted by housing at least one of the wheels 26 of the mounting module 20 in the recess.

[0050] The protruding portion 68 of the limiting mechanism 60 may protrude from the top surface 42 of the trolley so as to face, for example, the wheel 26 of the mounting module 20 on the transport direction D1 side from the installation direction D2 side. In this case, in the open position A1, the upper end of the protruding portion 68 may be held at the same height as the top surface 42 of the trolley, and in the restricted position A2, the protruding portion 68 may protrude above the top surface 42 of the trolley. By protruding above the top surface 42 of the trolley, the protruding portion 68 may directly restrict the driving of the wheel 26 toward the top surface 32 of the base. In this modified example, the height of the top surface 42 of the trolley is an example of a "predetermined height".

[0051] The limiting mechanism 60 does not necessarily have to include a connecting member 64. The limiting mechanism 60 may include, for example, a load sensor that detects when a cable 50 is placed on the tray 62. In that case, the limiting mechanism 60 may include an actuator that causes a protruding portion 68 to extend in response to the load sensor detecting that a cable 50 has been placed on the tray 62.

[0052] The limiting mechanism 60 does not necessarily have to include a magnet 69.

[0053] The cable 50 may be supported by the upper surface 32 of the base. In this modification, the base 30 does not need to have a cable support surface 38.

[0054] The mounting module 20 does not necessarily have to include a box 22. In this modified example, the connector 24 may be located, for example, on the lower surface 21 of the casing 20C of the mounting module 20.

[0055] The box 22 does not necessarily need to have cushioning material 29 placed inside it.

[0056] In addition to the power supply 34, the casing 30C of the base 30 may also contain a compressor and a control device. In that case, the cable 50 may connect the compressor, the control device and the mounting module 20. In this modified example, the compressor and control device are examples of "devices".

[0057] The specific examples of the technologies disclosed herein have been described in detail above, but these are merely illustrative and do not limit the scope of the claims. The technologies described in the claims include various modifications and changes to the specific examples described above. Furthermore, the technical elements described herein or in the drawings exhibit technical usefulness individually or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technologies illustrated herein or in the drawings achieve multiple objectives simultaneously, and achieving even one of these objectives constitutes technical usefulness in itself.

[0058] This specification also discloses a technical concept in which "the component mounting system described in claim 1" is changed to "the component mounting system described in any one of claims 1 to 5" in claim 6. Similarly, technical concepts in which "the component mounting system described in claim 1" is changed to "the component mounting system described in any one of claims 1 to 6" in claim 7, and technical concepts in which "the component mounting system described in claim 1" is changed to "the component mounting system described in any one of claims 1 to 8" in claim 9 are also disclosed. [Explanation of Symbols]

[0059] 10: Component mounting machine 20: Implementation Modules 20C, 30C: Casing 21: Bottom surface 22: Box 24: Connector 26,46 :Wheel 28: Mounting head 29: Cushioning material 30: Bass 32: Top surface of the base 34:Power supply 38: Cable support surface 39:Aperture 40: Dolly 42: Top surface of the bogie 44: Handle 49: Metal base 50: Cable 60: Restriction mechanism 62: Tray 64: Connecting member 66: Support member 68: Protrusion 69: Magnet 100: Component mounting system A1:Open position A2: Restricted posture C1: Gap D1: Conveying direction D2: Installation direction E1: 1st end E2: 2nd end H1: Bottom height P1: Installation position P2: Conveyor position

Claims

1. A component mounting system, A component mounting machine that mounts components onto a circuit board, A trolley that can move around the aforementioned component mounting machine, Equipped with, The aforementioned component mounting machine is A mounting module with a connector on the bottom, A base having a first upper surface capable of supporting the mounting module from below, A cable that detachably connects the connector of the mounting module to a device located within the base, Equipped with, The trolley is provided with a second upper surface capable of supporting the mounting module, The mounting module is configured to be movable along the first upper surface and the second upper surface between the first upper surface of the base and the second upper surface of the trolley. When the mounting module moves from the first upper surface to a predetermined position on the second upper surface, the connector of the mounting module is positioned above the second upper surface, and the cable is attached to and detached from the connector of the mounting module. The component mounting system further includes a limiting mechanism that restricts the movement of the mounting module from the predetermined position to the first upper surface in response to the removal of the cable from the connector of the mounting module located at a predetermined position on the second upper surface. Component mounting system.

2. The component mounting system according to claim 1, wherein the limiting mechanism is provided on the trolley.

3. The aforementioned limiting mechanism is A tray for placing the cable removed from the connector of the mounting module located at the predetermined position, As the cable is placed in the tray, a protrusion extends to a predetermined height below the mounting module located in the predetermined position, Equipped with, The protruding portion, when protruding to the predetermined height, restricts the mounting module from moving to the first upper surface. The component mounting system according to claim 2.

4. The tray and the protrusion are positioned so as to be offset from each other in the horizontal direction. The aforementioned limiting mechanism is A connecting member having one end connected to the tray and the other end connected to the protruding portion, A support member that rotatably holds the connecting member between an open position in which one end is held in a first position and the other end in a second position lower than the first position, and a restricted position in which one end is held in a third position lower than the first position and the other end in a fourth position higher than the second position, Furthermore, The aforementioned support member is If the cable is not placed in the tray, the connecting member is held in the open position and the protruding portion is not allowed to protrude to the predetermined height. When the cable is placed in the tray, the connecting member is rotated from the open position to the restricted position so that the protruding portion protrudes to the predetermined height. The component mounting system according to claim 3.

5. A magnet is provided at the other end of the connecting member to hold the connecting member in the open position. The connecting member rotates from the open position to the restricted position against the magnetic force of the magnet when the cable is placed in the tray. The component mounting system according to claim 4.

6. The aforementioned mounting module moves between the first upper surface and the second upper surface by a pair of wheels, The base is a support surface located between the pair of wheels and includes a support surface that supports the cable from below. The component mounting system according to claim 1, wherein the support surface is located above the second upper surface.

7. The component mounting system according to claim 1, wherein the connector is provided in a box that protrudes downward from the lower surface of the mounting module.

8. The component mounting system according to claim 7, wherein a cushioning material is arranged on the base side of the box.

9. The component mounting system according to claim 1, wherein the device disposed within the base includes a power supply for operating the mounting module.

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