JP7784652B2 - Work equipment - Google Patents

Description

This disclosure relates to a working device equipped with multiple operating units for operating working units.

Working devices, such as component mounting devices used to produce printed circuit boards, are known to include a work unit that mounts components onto the board, and multiple operation units, such as touch panels with an input unit and display unit connected to a control unit that controls the work unit (see, for example, Patent Document 1). Patent Document 1 discloses a component mounting device that includes an image signal processing circuit that displays image signals input from a higher-level device on the display unit and outputs them to a lower-level device, and a position signal processing circuit that transmits position signals from the device's touch panel to the host side when a selection switch is turned on, and transmits position signals from the lower-level device to the host side when the selection switch is turned off. This allows the component mounting device to be operated preferentially from any selected touch panel of multiple touch panels connected to the host device.

Japanese Patent Application Laid-Open No. 2006-261237

However, in prior art including Patent Document 1, the same image is displayed on the display units of multiple operation units, and even in a work device equipped with multiple work units that can perform work in parallel, there is a problem in that a work unit other than the one being operated preferentially from one operation unit cannot be operated from any of the operation units.

The present disclosure aims to provide a working device that allows appropriate operation of a working unit from multiple operating units.

A work device according to one aspect of the present disclosure is a work device comprising a work unit that performs work, a control unit that controls the work unit, and a plurality of operation units connected to the control unit, each of the plurality of operation units having an input unit and a display unit, and the control unit receives operation information from each of the plurality of operation units, identifies which of the plurality of operation units the received operation information is from, and outputs a command based on the operation information, has an input processing unit that executes processing based on the command, and an output processing unit that displays the execution result of the command on the display unit of the operation unit identified by the identification, and when the work is being performed on one operation unit, if a predetermined operation is performed from the one operation unit, the display unit of the other operation unit displays a notification indicating that the predetermined operation has been performed on the one operation unit , and when a predetermined operation is performed from the other operation unit while the notification is being displayed, the display unit of the one operation unit displays a notification indicating that the predetermined operation has been performed on the other operation unit .

This disclosure allows for proper operation of the working unit from multiple operating units.

FIG. 1 is a plan view of a main part of a mounting substrate manufacturing line according to an embodiment of the present disclosure. FIG. 2 is a plan view showing a schematic structure of a two-stage/two-head component mounting device provided in a mounting board manufacturing line according to an embodiment of the present disclosure. FIG. 3 is a side view showing a schematic structure of a two-stage/two-head component mounting device provided in a mounting board manufacturing line according to an embodiment of the present disclosure. FIG. 4 is a plan view showing a schematic structure of a four-stage/four-head component mounting device provided in a mounting board manufacturing line according to an embodiment of the present disclosure. FIG. 5 is a block diagram showing the configuration of a control system of a two-stage/two-head component mounting device according to an embodiment of the present disclosure. FIG. 6 is a flowchart showing the processing of the input processing unit of the two-stage/two-head component mounting device according to the embodiment of the present disclosure. FIG. 7 is an explanatory diagram of an example of a display screen displayed on a display unit of an operation unit included in the two-stage/two-head component mounting device according to an embodiment of the present disclosure. FIG. 8 is an explanatory diagram of an example of a display screen displayed on a display unit of an operation unit included in the two-stage/two-head component mounting device according to an embodiment of the present disclosure. FIG. 9 is an explanatory diagram of an example of a display screen displayed on a display unit of an operation unit included in the two-stage/two-head component mounting device according to an embodiment of the present disclosure. FIG. 10A is a block diagram showing the configuration of a control system of a first modified example of a two-stage/two-head component mounting device according to an embodiment of the present disclosure. FIG. 10B is a flowchart showing the processing of the input processing unit of the first modified example of the two-stage/two-head component mounting device according to the embodiment of the present disclosure. FIG. 11 is a block diagram showing the configuration of a control system of a second modified example of a two-stage/two-head component mounting device according to an embodiment of the present disclosure.

An embodiment of the present disclosure will be described in detail below using the drawings. The configurations, shapes, etc. described below are examples for explanatory purposes and can be modified as appropriate depending on the specifications of the mounting board production line, component mounting device, etc. In the following, corresponding elements in all drawings will be given the same reference numerals, and duplicate explanations will be omitted. In Figure 1 and some of the drawings described below, two axes that are orthogonal to each other in the horizontal plane are shown: the X axis in the substrate transport direction (the up-down direction in Figure 1) and the Y axis that is orthogonal to the substrate transport direction (the left-right direction in Figure 1). In Figure 3 and some of the drawings described below, the Z axis (the up-down direction in Figure 3) is shown as the height direction that is orthogonal to the horizontal plane.

First, referring to Figure 1, the configuration of a mounted board production line 1 according to one embodiment of the present disclosure will be described. Figure 1 schematically illustrates the main components of the mounted board production line 1. The mounted board production line 1 is configured by connecting multiple component mounting devices M1-M6 in series and has the function of manufacturing mounted boards with components mounted on them. Each of the component mounting devices M1-M6 has a first board transport lane L1 and a second board transport lane L2 spaced apart in the Y-axis direction. These lane lanes transport the board 2 along the X-axis from upstream (upper side of the page) to downstream (lower side of the page). Hereinafter, in the Y-axis direction, the side where the first board transport lane L1 is located will be referred to as the front (left side of the page), and the side where the second board transport lane L2 is located will be referred to as the rear (right side of the page).

The first board transport lane L1 and second board transport lane L2 equipped on each component mounting device M1-M6 are connected to the adjacent device, and transport boards 2 from upstream to downstream and hand them over to the adjacent device. Thus, component mounting devices M1-M6 are equipped with a first board transport lane L1 that transports boards 2 along the X-axis (one axis) extending horizontally, and a second board transport lane L2 that is positioned away from the first board transport lane L1 in the direction along the Y-axis (another axis perpendicular to the X-axis in the horizontal plane) and transports boards 2 along the X-axis.

In FIG. 1, each of component mounting devices M1 to M6 has a first component supply section S1 located before the first board transport lane L1 and a second component supply section S2 located after the second board transport lane L2. Furthermore, component mounting devices M5 and M6 have a third component supply section S3 located downstream of the first component supply section S1 and a fourth component supply section S4 located downstream of the second component supply section S2. The first component supply section S1, second component supply section S2, third component supply section S3, and fourth component supply section S4 each have multiple component supply units 3 arranged in parallel along the X axis that supply components.

As such, component mounting devices M1-M6 are equipped with a first component supply section S1 that is located away from the first board transport lane L1 in the direction along the Y axis on the opposite side (front) of the second board transport lane L2, and has a plurality of component supply units 3 arranged in parallel along the X axis. Furthermore, component mounting devices M1-M6 are equipped with a second component supply section S2 that is located away from the second board transport lane L2 in the direction along the Y axis on the opposite side (rear) of the first board transport lane L1, and has a plurality of component supply units 3 arranged in parallel along the X axis.

In Figure 1, in each of the component mounting devices M1 to M6, a first work unit U1 is located in front of the first board transport lane L1, a second board transport lane L2, and a second work unit U2 is located behind the component supply unit 3. Furthermore, in the component mounting devices M5 and M6, a third work unit U3 is located downstream of the first work unit U1, and a fourth work unit U4 is located downstream of the second work unit U2.

The first work unit U1 includes a first component mounting head H1 (first work head) that holds components and mounts them on the board 2, a first work head movement mechanism F1 that moves the first component mounting head H1 at least from above the first component supply section S1 within a first area A1 above the second board transport lane L2, and a first head camera C1 (first imaging unit) that moves together with the first component mounting head H1 by the first work head movement mechanism F1. In other words, the first work unit U1 is configured to be able to mount components not only on boards 2 held in the first board transport lane L1, but also on boards 2 held in the second board transport lane L2.

In FIG. 1, the second work unit U2 includes a second component mounting head H2 (second work head) that holds components and mounts them on a board; a second work head moving mechanism F2 that moves the second component mounting head H2 from at least above the second component supply section S2 within the second area A2 above the first board transport lane L1; and a second head camera C2 (second imaging unit) that moves together with the second component mounting head H2 by the second work head moving mechanism F2. In other words, the second work unit U2 is configured to be able to mount components on boards 2 held in the first board transport lane L1 as well as boards 2 held in the second board transport lane L2.

Similarly, the third work unit U3 includes a third component mounting head H3 (third work head), a third work head moving mechanism F3 that moves the third component mounting head H3 within the third area A3, and a third head camera C3 (third imaging unit). Furthermore, the fourth work unit U4 includes a fourth component mounting head H4 (fourth work head), a fourth work head moving mechanism F4 that moves the fourth component mounting head H4 within the fourth area A4, and a fourth head camera C4 (fourth imaging unit).

In Figure 1, each of component mounting devices M1-M6 has a first operation unit P1 located in a position that can be operated by a worker at the front, and a second operation unit P2 located in a position that can be operated by a worker at the rear. The first operation unit P1 and the second operation unit P2 are devices such as touch panels that include a monitor 14 (display unit) that displays various information and screens, and a touch screen 13 (input unit) that accepts input of various information (see Figure 5).

In this way, component mounting devices M1 to M4 are two-stage/two-head component mounting devices equipped with two component supply units (first component supply unit S1, second component supply unit S2) and two working units (first working unit U1, second working unit U2). Furthermore, component mounting devices M5 and M6 are four-stage/four-head component mounting devices equipped with four component supply units (first component supply unit S1, second component supply unit S2, third component supply unit S3, fourth component supply unit S4) and four working units (first working unit U1, second working unit U2, third working unit U3, fourth working unit U4).

In the example shown in Figure 1, the mounted substrate production line 1 is equipped with four two-stage/two-head component mounting devices M1-M4 and two four-stage/four-head component mounting devices M5 and M6, but the mounted substrate production line 1 is not limited to this configuration. For example, the mounted substrate production line 1 may be configured to include either one of the two-stage/two-head component mounting devices M1-M4 or one of the four-stage/four-head component mounting devices M5 and M6.

Also, the system may be configured with two, three, five or more two-stage/two-head component placement devices M1-M4, or three or more four-stage/four-head component placement devices M5, M6. The placement order of the two-stage/two-head component placement devices M1-M4 and the four-stage/four-head component placement devices M5, M6 can be set arbitrarily. Furthermore, the component placement devices M1-M6 do not need to be physically connected.

Next, the detailed configuration of the two-stage/two-head component mounting devices M1-M4 will be described with reference to Figures 2 and 3. Figure 2 is a plan view showing the general structure of each of the two-stage/two-head component mounting devices (M1-M4) provided in the printed circuit board production line 1. Figure 3 is a side view showing the general structure of each of the two-stage/two-head component mounting devices (M1-M4) provided in the printed circuit board production line 1. A first board transport lane L1 is located at the front and a second board transport lane L2 is located at the rear in the center of the upper part of the base 4. The first board transport lane L1 is equipped with a pair of board transport conveyors K1 that transport boards 2. The second board transport lane L2 is equipped with a pair of board transport conveyors K2 that transport boards 2.

A first component supply unit S1 is located in front of the first board transport lane L1, and a second component supply unit S2 is located behind the second board transport lane L2. A trolley 5 with multiple component supply units 3 (tape feeders) already attached to the top is set up at the first component supply unit S1 and the second component supply unit S2. The trolley 5 holds a reel 7 that stores a wound carrier tape 6 holding components. The carrier tape 6 pulled out from the reel 7 is pitch-fed by the component supply unit 3, and the components held by the carrier tape 6 are supplied to the component supply position.

In Figures 2 and 3, at both ends of the X axis on the top surface of the base 4, a Y-axis table 8 is arranged upstream and a Y-axis support unit 9 is arranged downstream. A guide unit 10 extending along the Y axis is arranged at an opposing position on each of the Y-axis table 8 and Y-axis support unit 9. A Y-axis linear motor 11 extending along the Y axis is also arranged on the Y-axis table 8. A first beam B1 is arranged in front between the Y-axis table 8 and the Y-axis support unit 9, and a second beam B2 is arranged in the rear. The first beam B1 and second beam B2 are driven by the Y-axis linear motor 11 to move back and forth along the guide unit 10.

A first linear motor D1 extending along the X-axis is disposed on the first beam B1. A first movable member E1, which is driven by the first linear motor D1 and moves left and right along the X-axis, is also connected to the first beam B1. A first component mounting head H1 and a first head camera C1 are attached to the first movable member E1. A second linear motor D2 extending along the X-axis is disposed on the second beam B2. A second movable member E2, which is driven by the second linear motor D2 and moves left and right along the X-axis, is also attached to the second beam B2. A second component mounting head H2 and a second head camera C2 are attached to the second movable member E2.

In Figure 3, the first component mounting head H1 and the second component mounting head H2 are equipped with multiple component holding nozzles 12 that hold components at their lower ends. The first component mounting head H1 and the second component mounting head H2 raise and lower the component holding nozzles 12 along the Z axis and rotate them around the Z axis.

In Figures 2 and 3, the first component mounting head H1 moves horizontally (X-axis direction, Y-axis direction) by the Y-axis linear motor 11 and the first linear motor D1. That is, the Y-axis table 8 and the first beam B1 constitute a first work head moving mechanism F1 that moves the first component mounting head H1 and the first head camera C1 within the first area A1. The second component mounting head H2 moves horizontally by the Y-axis linear motor 11 and the second linear motor D2. That is, the Y-axis table 8 and the second beam B2 constitute a second work head moving mechanism F2 that moves the second component mounting head H2 and the second head camera C2 within the second area A2.

The first head camera C1 and second head camera C2 move above the board 2 held at the loading position of the first board transport lane L1 or the loading position of the second board transport lane L2, and capture images of board marks (not shown) on the board 2. The captured image is then recognized, and the position of the board 2 is determined. Furthermore, in the specific task of first supply position teaching, the first head camera C1 (first imaging unit) of the first work unit U1 captures an image of the component supply unit 3 of the first component supply unit S1, thereby detecting the component supply position. Furthermore, in the specific task of second supply position teaching, the second head camera C2 (second imaging unit) of the second work unit U2 captures an image of the component supply unit 3 of the second component supply unit S2, thereby detecting the component supply position.

In Figures 2 and 3, a first component camera G1 that captures images above is located on the top surface of the base 4 between the first component supply unit S1 and the first board transport lane L1. Furthermore, a second component camera G2 that captures images above is located between the second component supply unit S2 and the second board transport lane L2. As the first component mounting head H1, which has removed a component from the first component supply unit S1, moves above the first component camera G1, the first component camera G1 captures an image of the component held by the component holding nozzle 12. As the second component mounting head H2, which has removed a component from the second component supply unit S2, moves above the second component camera G2, the second component camera G2 captures an image of the component held by the component holding nozzle 12. The captured image is then recognized, and the orientation of the component held by the component holding nozzle 12 is determined.

When the first component mounting head H1 mounts components on the board 2, the component mounting positions are corrected taking into account the results of board position recognition by the first head camera C1 and the results of component recognition by the first component camera G1. Similarly, when the second component mounting head H2 mounts components on the board 2, the component mounting positions are corrected taking into account the results of board position recognition by the second head camera C2 and the results of component recognition by the second component camera G2.

In Figures 2 and 3, multiple first reference points J1 are located within the first area A1 around the mounting position where the board 2 on which components are mounted is held in the first board transport lane L1. Here, two first reference points J1 are located: one behind the first board transport lane L1 and one next to the first component camera G1. In this way, at least one first reference point J1 is located within the first area A1, serving as a reference point for the first work head movement mechanism F1. In the first calibration, which is a specific task, the first reference point J1 is imaged by the first head camera C1 (first imaging unit), and the first work unit U1 is calibrated based on the position of the first reference point J1 identified from the captured image.

A number of second reference points J2 are positioned within the second area A2 around the mounting position where the board 2 on which components are mounted is held in the second board transport lane L2. Here, two second reference points J2 are positioned: one in front of the second board transport lane L2 and one next to the second component camera G2. In this way, at least one second reference point J2 is positioned within the second area A2, serving as the reference point for the second work head movement mechanism F2. In the second calibration, which is a specific task, the second reference point J2 is imaged by the second head camera C2 (second imaging unit), and the second work unit U2 is calibrated based on the position of the second reference point J2 identified from the captured image.

In Figures 2 and 3, a first operation unit P1 is located above the front of each of the component mounting devices M1 to M4, and a second operation unit P2 is located above the rear of each of the component mounting devices. A control unit 20 is located on the base 4. The first operation unit P1, second operation unit P2, and each of the component mounting devices M1 to M4 are connected to the control unit 20 (see Figure 5). This allows multiple operation units (first operation unit P1 and second operation unit P2), each of which has an input unit (touch screen 13) and a display unit (monitor 14), to communicate with the control unit 20.

The control unit 20 controls the first work unit U1 and the component supply unit 3 of the first component supply unit S1 to perform component mounting work to mount components onto a board 2 held at the mounting work position of the first board transport lane L1 or the mounting work position of the second board transport lane L2. The control unit 20 also controls the second work unit U2 and the component supply unit 3 of the second component supply unit S2 to perform component mounting work to mount components onto a board 2 held at the mounting work position of the second board transport lane L2 or the mounting work position of the first board transport lane L1.

The control unit 20 also controls the first work unit U1 to perform a first calibration or a first supply position teaching as a specific task. The control unit 20 also controls the second work unit U2 to perform a second calibration or a second supply position teaching as a specific task.

As described above, component mounting devices M1-M4 include a first board transport lane L1, a second board transport lane L2, a first component supply unit S1, a second component supply unit S2, a first work unit U1 including a first component mounting head H1 (first work head), a first work head movement mechanism F1, and a first head camera C1 (first imaging unit), a second work unit U2 including a second component mounting head H2 (second work head), a second work head movement mechanism F2, and a second head camera C2 (second imaging unit), a first component camera G1, a second component camera G2, a first reference point J1, a second reference point J2, a control unit 20, and multiple operation units (first operation unit P1, second operation unit P2).

The first board transport lane L1, the first component supply unit S1, the first work unit U1, the first component camera G1, and the first reference point J1 constitute the first work unit W1, which performs component mounting and specific tasks. The second board transport lane L2, the second component supply unit S2, the second work unit U2, the second component camera G2, and the second reference point J2 constitute the second work unit W2, which performs component mounting and specific tasks. The component mounting devices M1-M4 are work devices that include work units (first work unit W1, second work unit W2), a control unit 20 that controls the work units, and multiple operation units (first operation unit P1, second operation unit P2) connected to the control unit.

Next, the detailed configuration of the four-stage/four-head component mounting devices M5 and M6 will be described with reference to Figure 4. Figure 4 is a plan view showing the schematic structure of each of the four-stage/four-head component mounting devices (M5 and M6) provided in the printed circuit board production line 1. Like the two-stage/two-head component mounting devices M1-M4 described above, component mounting devices M5 and M6 have a first working unit W1 and a second working unit W2 upstream. Component mounting devices M5 and M6 differ from component mounting devices M1-M4 in that they have a third working unit W3 located upstream and a fourth working unit W4 located downstream. Component mounting devices M5 and M6 also differ from component mounting devices M1-M4 in that a first operating unit P1 is located between the first working unit W1 and the third working unit W3, and a second operating unit P2 is located between the second working unit W2 and the fourth working unit W4. Below, parts that are the same as those in component mounting devices M1 to M4 are given the same reference numerals, and detailed explanations will be omitted.

In Figure 4, the Y-axis support unit 9, which extends along the Y-axis, is located in the center of the upper surface of the base 4. A second Y-axis table 8B, which also extends along the Y-axis, is located at the opposite (downstream) end of the upper surface of the base 4 from the Y-axis table 8, which extends along the Y-axis and is located upstream. A guide unit 10, which also extends along the Y-axis, is located opposite the second Y-axis table 8B and the Y-axis support unit 9. A second Y-axis linear motor 11B, which also extends along the Y-axis, is located on the second Y-axis table 8B. Hereinafter, when distinguishing it from the second Y-axis table 8B, the Y-axis table 8 will be referred to as the first Y-axis table 8A. When distinguishing it from the second Y-axis linear motor 11B, the Y-axis linear motor 11 will be referred to as the first Y-axis linear motor 11A.

A third beam B3 is positioned in front and a fourth beam B4 is positioned behind the second Y-axis table 8B and the Y-axis support section 9. The third beam B3 and fourth beam B4 are driven by a second Y-axis linear motor 11B to move back and forth along the guide section 10. A third linear motor D3 extending along the X-axis is positioned on the third beam B3. A fourth linear motor D4 extending along the X-axis is positioned on the fourth beam B4.

In Figure 4, the second Y-axis table 8B and the third beam B3 constitute a third work head moving mechanism F3 that moves the third component mounting head H3 and the third head camera C3 within the third area A3. Furthermore, the second Y-axis table 8B and the fourth beam B4 constitute a fourth work head moving mechanism F4 that moves the fourth component mounting head H4 and the fourth head camera C4 within the fourth area A4.

The third head camera C3 and fourth head camera C4 move above the board 2 held at the loading work position of the first board transport lane L1 or the loading work position of the second board transport lane L2, and capture images of board marks (not shown) on the board 2. The captured image is then recognized, and the position of the board 2 is determined. Furthermore, in the specific task of third supply position teaching, the third head camera C3 (third imaging unit) of the third work unit U3 captures an image of the component supply unit 3 of the third component supply unit S3, thereby detecting the component supply position. Furthermore, in the specific task of fourth supply position teaching, the fourth head camera C4 (fourth imaging unit) of the fourth work unit U4 captures an image of the component supply unit 3 of the fourth component supply unit S4, thereby detecting the component supply position.

In Figure 4, a third component camera G3 that captures images above is located on the top surface of the base 4 between the third component supply unit S3 and the first board transport lane L1. Additionally, a fourth component camera G4 that captures images above is located between the fourth component supply unit S4 and the second board transport lane L2.

At least one third reference point J3 is located within the third area A3, serving as a reference point for the third work head movement mechanism F3. In the third calibration, which is a specific task, the third reference point J3 is imaged by the third head camera C3 (third imaging unit), and the third work unit U3 is calibrated based on the position of the third reference point J3 identified from the captured image. Furthermore, at least one fourth reference point J4 is located within the fourth area A4, serving as a reference point for the fourth work head movement mechanism F4. In the fourth calibration, which is a specific task, the fourth reference point J4 is imaged by the fourth head camera C4 (fourth imaging unit), and the fourth work unit U4 is calibrated based on the position of the fourth reference point J4 identified from the captured image.

As described above, the component mounting devices M5 and M6 include the first board transport lane L1, the second board transport lane L2, the first component supply unit S1, the second component supply unit S2, the third component supply unit S3, the fourth component supply unit S4, the first work unit U1, the second work unit U2, the third work unit U3 including the third component mounting head H3 (third work head), the third work head moving mechanism F3, and the third head camera C3 (third imaging unit), and the fourth It includes a fourth work unit U4 including a component mounting head H4 (fourth work head), a fourth work head moving mechanism F4, and a fourth head camera C4 (fourth imaging unit), a first component camera G1, a second component camera G2, a third component camera G3, a fourth component camera G4, a first reference point J1, a second reference point J2, a third reference point J3, a fourth reference point J4, a control unit 20, and multiple operation units (first operation unit P1, second operation unit P2).

The first board transport lane L1, the third component supply unit S3, the third work unit U3, the third component camera G3, and the third reference point J3 constitute the third work unit W3, which performs component mounting and specific tasks. The second board transport lane L2, the fourth component supply unit S4, the fourth work unit U4, the fourth component camera G4, and the fourth reference point J4 constitute the fourth work unit W4, which performs component mounting and specific tasks. In this way, component mounting devices M5 and M6 are work devices equipped with work units (first work unit W1, second work unit W2, third work unit W3, fourth work unit W4), a control unit 20 that controls the work units, and multiple operation units (first operation unit P1, second operation unit P2) connected to the control unit.

Next, referring to Figure 5, the configuration of the control system for the two-stage/two-head component mounting devices M1-M4 will be explained, focusing on the function of appropriately processing operations from multiple operating units (first operating unit P1, second operating unit P2) for multiple working units (first working unit U1, second working unit U2) or multiple working sections (first working section W1, second working section W2). Figure 5 is a block diagram showing the configuration of the control system for each of the two-stage/two-head component mounting devices M1-M4.

The control unit 20 provided in each of the component mounting devices M1 to M4 includes an input processing unit 21, a processing unit 22, an exclusive processing unit 23, an output processing unit 24, and a memory unit 25. The input processing unit 21 receives operation information from multiple operation units (first operation unit P1, second operation unit P2), identifies which operation unit the received operation information came from, and outputs a command based on the operation information. The input processing unit 21 includes an input receiving unit 26, an operation unit identification unit 27, and an output unit 28 as internal processing units.

The processing unit 22 executes various processes described below based on commands, causing the working units (first working unit W1, second working unit W2) to perform predetermined tasks (component mounting tasks) and specific tasks. The processing unit 22 includes internal processing units, a component mounting processing unit 29, a first calibration processing unit 30, a first teaching processing unit 31, a second calibration processing unit 32, and a second teaching processing unit 33. The memory unit 25 is a storage device that stores a production program 34, teaching/calibration data 35, operational performance data 36, device status data 37, etc.

In FIG. 5, the first calibration processing unit 30 controls the first working unit W1 to perform a first calibration that calibrates the first working unit U1 based on the position of the first reference point J1. The second calibration processing unit 32 controls the second working unit W2 to perform a second calibration that calibrates the second working unit U2 based on the position of the second reference point J2. Information (such as correction values) obtained by the first calibration or the second calibration is stored in the memory unit 25 as teaching/calibration data 35.

The first teaching processing unit 31 controls the first working unit W1 to perform first supply position teaching, which detects the component supply position of the first component supply unit S1 and teaches the position from which the component holding nozzle 12 of the first component mounting head H1 will pick up a component from the component supply unit 3. The second teaching processing unit 33 controls the second working unit W2 to perform second supply position teaching, which detects the component supply position of the second component supply unit S2 and teaches the position from which the component holding nozzle 12 of the second component mounting head H2 will pick up a component from the component supply unit 3. Information acquired by the first supply position teaching or second supply position teaching (such as component suction position data) is stored in the memory unit 25 as teaching/calibration data 35.

In Figure 5, the production program 34 stores, for each type of mounting board, information and control programs required for component mounting, such as the size of the board 2, the type of component to be mounted, and the mounting position (XY coordinates). The component mounting processing unit 29 controls the first working unit W1 and the second working unit W2 based on the production program 34 and teaching/calibration data 35, causing them to transport the board 2 and perform the component mounting operation of mounting components onto the board. During the component mounting operation, the component mounting processing unit 29 controls the positions of the first component mounting head H1 and the second component mounting head H2 by referencing the teaching/calibration data 35 (various correction values, component pickup position data, etc.).

The processing unit 22 sequentially acquires operational performance data such as the remaining number of components that each component supply unit 3 can supply, the number of mounting boards produced, the number of component mounting errors, and the number of pickup errors, and stores this data in the memory unit 25 as operational performance data 36. The processing unit 22 also sequentially acquires the status of the work units (first work unit W1, second work unit W2), the progress of component mounting work, the progress of specific tasks such as calibration and supply position teaching, and information on the operation units (first operation unit P1, second operation unit P2) that performed operations on the control unit 20, and stores this data in the memory unit 25 as device status data 37.

In FIG. 5, the first operation unit P1 is connected to a first connection port T1 provided on the control unit 20. The second operation unit P2 is connected to a second connection port T2 provided on the control unit 20. Operation events indicating the content of operations performed by the operator on the touch screen 13 and operation information including coordinate data indicating the position where the operation was performed are transmitted to the input processing unit 21 via the connection ports (first connection port T1, second connection port T2). Operation events include tap, long tap, flick, slide, pen up, pen down, pitch in, pitch out, etc.

Now, referring to Figure 6, the processing of the input processing unit 21 will be described. Figure 6 is a flow diagram showing the processing performed by the input processing unit 21 of each of the two-stage/two-head component mounting devices M1-M4. The input receiving unit 26 receives operation information (operation event, coordinate data) output from the touch screen 13 (ST1). Upon receiving the operation information ("Receive" in ST1), the input processing unit 21 determines the command entered by the operator on the touch screen 13 based on the operation information received by the input receiving unit 26 (ST2). Next, the operation unit identification unit 27 identifies from which operation unit (first operation unit P1, second operation unit P2) the operation information was transmitted (ST3). In this example, the operation unit is identified based on which connection port (first connection port T1, second connection port T2) the operation information was transmitted via.

If the first connection port T1 is identified ("first connection port" in ST3), the output unit 28 associates the operation unit identification information of the first connection port T1 with a command and outputs it (ST4). Furthermore, if the second connection port T2 is identified ("second connection port" in ST3), the output unit 28 associates the operation unit identification information of the second connection port T2 with a command and outputs it (ST5). In this way, the output unit 28 associates the command determined by the input processing unit 21 with the identification result (operation unit identification information) that specifies which operation unit recognized by the operation unit identification unit 27 is the target of the operation, and outputs them to the processing unit 22 and the output processing unit 24.

For example, when a worker taps the stop button displayed on the monitor 14 of the first operation unit P1, operation information including the operation event "tap" and coordinate data indicating the operation position on the touch screen 13 is transmitted to the control unit 20 via the first connection port T1. Based on the operation information received by the input receiving unit 26, the input processing unit 21 recognizes that the tapped position is within the display area of the stop button displayed on the monitor 14 (ST2), associates the stop command with the identification result indicating the first operation unit P1 identified by the operation unit identification unit 27, and outputs the association result to the processing unit 22 and the output processing unit 24 (ST4).

In this way, the input processing unit 21 receives operation information from multiple operation units (first operation unit P1, second operation unit P2), identifies which operation unit the received operation information came from, and outputs a command based on the operation information. The multiple operation units are individually connected to multiple connection ports (first connection port T1, second connection port T2) provided in the control unit 20, and the input processing unit 21 detects which connection port the operation information came from and identifies the operation unit that output the operation information.

In FIG. 5, the exclusive processing unit 23 executes exclusive processing based on the operation unit identification result output from the input processing unit 21 and the status of the work units (first work unit W1, second work unit W2) included in the device status data 37. When a specific task is being performed in a work unit, it permits operations from the operation unit that instructed the specific task in that work unit, but prohibits operations from other operation units. This prevents other operation units from performing operations that conflict with the work unit in which the specific task is being performed.

For example, when the first operating unit P1 is operated to perform a specific task, calibration, on the first working unit W1 (or the first working unit U1), and the first calibration processing unit 30 is causing the first working unit W1 to perform the first calibration, the exclusion processing unit 23 permits operation from the first operating unit P1 but prohibits operation from the second operating unit P2.

In other words, the exclusive processing unit 23 refers to the operation unit identification result by the input processing unit 21, and when one operation unit (first operation unit P1) is assigned to one operation unit (first operation unit W1) or one operation unit (first operation unit U1) to have that unit perform a specific task (calibration), the exclusive processing unit 23 permits the one operation unit to perform operations for the one operation unit but prohibits the other operation unit (second operation unit P2), and permits the other operation unit to perform operations for the other operation unit (second operation unit W2) or other operation unit (second operation unit U2). This allows appropriate operations to be performed from each operation unit even when operations are simultaneously performed from multiple operation units on multiple operation units or operation units.

In FIG. 5, the output processing unit 24 displays the execution results of the command executed by the processing unit 22 on the monitor 14 of the specified operation unit (first operation unit P1, second operation unit P2) based on the identification result of the operation unit specified by the input processing unit 21. For example, if the first working unit W1 is performing calibration in response to an operation from the first operation unit P1, the output processing unit 24 displays the execution results, including the progress of the calibration in the first working unit W1, on the monitor 14 of the first operation unit P1. In other words, the output processing unit 24 displays the execution results of the command on the display unit (monitor 14) of the operation unit specified by identification by the input processing unit 21.

Next, examples of monitor screens displayed on the monitor 14 of the first operation unit P1 and the monitor 14 of the second operation unit P2 of component mounting devices M1-M4 will be described with reference to Figures 7-9. Figures 7-9 are explanatory diagrams of examples of display screens displayed on the display unit (monitor 14) of the operation unit (P1, P2) provided on each of the two-stage/two-head component mounting devices M1-M4.

State A in Figure 7 shows a state in which component mounting operations are being performed on different types of mounting boards at the first work unit W1 and the second work unit W2 of each of component mounting devices M1 to M4, and neither the first operation unit P1 nor the second operation unit P2 has been operated for a predetermined period of time (e.g., five minutes). That is, based on the device status data 37, the output processing unit 24 causes the monitor 14 of the first operation unit P1 and the monitor 14 of the second operation unit P2 to display, respectively, the positions of boards 2 being transported in the first board transport lane L1 and the second board transport lane L2, the board type of the mounting board being produced, the number of boards 2 on which component mounting operations have been completed, and the number of boards 2 planned for production.

The output processing unit 24 also displays information about the first board transport lane L1 on the bottom side of the monitor 14 of the first operation unit P1, and information about the second board transport lane L2 on the bottom side of the monitor 14 of the second operation unit P2. That is, on each monitor 14, the board transport lane that is closest to the monitor 14 is displayed on the bottom side. This allows workers looking at the monitor 14 to easily understand the status within component mounting devices M1 to M4.

State B in Figure 7 shows the state after the operator touches the monitor 14 of the first operation unit P1 (tap anywhere on the screen) in State A. When the operator touches the monitor 14 of the first operation unit P1, operation information (tap, tapped coordinates) is output from the touch screen 13 of the first operation unit P1. The input processing unit 21 (operation unit identification unit 27) detects that the operation information has passed through the first connection port T1 and identifies that the first operation unit P1 is the one that output the operation information. The output processing unit 24 displays a main menu for accepting commands on the monitor 14 of the first operation unit P1. In other words, the output processing unit 24 displays the execution result of the command (main menu display) on the monitor 14 of the first operation unit P1 identified by the input processing unit 21.

The output processing unit 24 also displays a notification on the monitor 14 of the second operation unit P2 indicating that an operation has been performed on the first operation unit P1. In this example, the notification is made by changing the color of the border of the screen displayed on the monitor 14. Note that the notification method is not limited to changing the color of the border of the screen; it is also possible to change the color of the entire screen, or to display a comment on the screen indicating that an operation has been performed on the first operation unit P1.

State C in Figure 7 shows the state after the worker selects the "Display Remaining Parts Quantity" button (tap within the display area of the "Display Remaining Parts Quantity" button) from the main menu displayed on the monitor 14 of the first operation unit P1 in state B. When the worker selects the "Display Remaining Parts Quantity" button, operation information (tap, tapped coordinates) is output from the touch screen 13 of the first operation unit P1. The output processing unit 24 displays a screen showing the remaining parts quantity on the monitor 14 of the first operation unit P1 based on the remaining number of parts that can be supplied by each part supply unit 3 included in the operation performance data 36. Note that the output processing unit 24 does not change the display on the monitor 14 of the second operation unit P2.

State D in Figure 7 shows the state after the operator selects the "Operation History Data (Suction Nozzle)" button from the main menu displayed by touching the monitor 14 of the second operation unit P2 in state C. That is, the output processing unit 24 displays a screen showing operation history on the monitor 14 of the second operation unit P2 based on the operation history data of the component holding nozzle 12 included in the operation history data 36. Furthermore, the output processing unit 24 displays a notification on the monitor 14 of the first operation unit P1 indicating that an operation has been performed on the second operation unit P2. Note that the output processing unit 24 does not change the display on the monitor 14 of the first operation unit P1.

State E in Figure 8 shows the state after the worker selects the "Calibration" button from the main menu displayed on the monitor 14 of the first operation unit P1, when both the first operation unit W1 and the second operation unit W2 are able to perform specific tasks. In other words, neither the first operation unit W1 nor the second operation unit W2 is performing component placement work, and no information related to component placement work is displayed on the monitor 14 of the second operation unit P2.

When the "Calibration" button is selected, the output processing unit 24 displays a calibration selection menu on the monitor 14 of the first operation unit P1. The calibration selection menu displays "Front" and "Back" buttons for selecting the work unit on which calibration will be performed, as well as a "Start" button and a diagram that schematically shows the work units of component mounting devices M1 to M4.

State F in Figure 8 shows the state after the operator taps the "Start" button in the calibration selection menu displayed on the monitor 14 of the first operation unit P1 in state E, after tapping the "Front" button (operation unit selection button) to select "Front." That is, based on the operation information output from the touch screen 13 of the first operation unit P1, the first calibration processing unit 30 causes the first operation unit W1 to perform the first calibration. The output processing unit 24 displays a calibration status screen on the monitor 14 of the first operation unit P1. The calibration status screen displays a diagram that schematically indicates that calibration is being performed on the first operation unit W1, text and a graph indicating the progress of the calibration (here, 5%), and a "Stop" button.

The output processing unit 24 also displays on the monitor 14 of the second operation unit P2 a message indicating that calibration is being performed in the first work unit W1. In this example, the text information "Calibration in progress" is displayed in the position indicating the first board transport lane L1. The exclusion processing unit 23 assigns the first operation unit P1 to the first work unit W1 based on the operation information output from the touch screen 13 of the first operation unit P1, and then maintains this state until the first calibration is completed.

In other words, the exclusive processing unit 23 allows the first operation unit P1 to operate the first working unit W1 but prohibits the second operation unit P2 from doing so until the first calibration is completed. Therefore, a "Stop" button that accepts stopping the calibration of the first working unit W1 is displayed on the monitor 14 of the first operation unit P1, but no buttons or the like for operating the first working unit W1 are displayed on the monitor 14 of the second operation unit P2. When the "Stop" button displayed on the monitor 14 of the first operation unit P1 is operated, the calibration of the first working unit W1 is stopped.

State G in Figure 8 shows the state after the operator selects the "Teaching" button from the main menu displayed by touching the monitor 14 of the second operation unit P2 in state F. That is, while the exclusive processing unit 23 has assigned the first operation unit P1 to the first work unit W1, the output processing unit 24 displays a teaching selection menu on the monitor 14 of the second operation unit P2. The teaching selection menu displays "Front" and "Back" buttons for selecting the work unit on which calibration will be performed, as well as a "Start" button and a diagram that schematically shows the work units of component mounting devices M1 to M4.

The first calibration is being performed in the first working unit W1, and the second operating unit P2 is prohibited from operating the first working unit W1. Therefore, the output processing unit 24 displays the "Back" button in the teaching selection menu in an inoperable state. Furthermore, in the schematic diagram, the first working unit W1 is displayed with a dotted line to clearly indicate that it cannot be selected. The output processing unit 24 also updates the calibration progress (here, 10%) displayed on the monitor 14 of the first operating unit P1 to the latest status.

State H in Figure 8 shows the state after the operator taps the "Start" button in the teaching selection menu displayed on the monitor 14 of the second operation unit P2 in state G, after tapping the "Front" button to select "Front." That is, based on the operation information output from the touch screen 13 of the second operation unit P2, the second teaching processing unit 33 causes the second working unit W2 to perform second supply position teaching. The output processing unit 24 displays a teaching status screen on the monitor 14 of the second operation unit P2. The teaching status screen displays a diagram that schematically indicates that supply position teaching is being performed on the second working unit W2, text and a graph indicating the progress of teaching (here, 0%), and a "Stop" button.

The output processing unit 24 also updates the calibration progress (20% in this case) displayed on the monitor 14 of the first operation unit P1 to the latest status. The exclusion processing unit 23 assigns the second operation unit P2 to the second working unit W2 based on the operation information output from the touch screen 13 of the second operation unit P2, and maintains this state until the second supply position teaching is completed. In other words, the exclusion processing unit 23 permits the second operation unit P2 to perform operations for the second working unit W2 but prohibits the first operation unit P1 from performing such operations until the second supply position teaching is completed.

For this reason, the monitor 14 of the second operation unit P2 displays a "Stop" button that accepts the stopping of supply position teaching of the second working unit W2, but the monitor 14 of the first operation unit P1 does not display any buttons for operating the second working unit W2. When the "Stop" button displayed on the monitor 14 of the second operation unit P2 is operated, the component supply position teaching of the second working unit W2 is stopped.

State K in Figure 9 shows a state in which both the first working unit W1 and the second working unit W2 are capable of performing specific tasks, and after a worker selects the "Calibration" button from the main menu displayed on the monitor 14 of the first operating unit P1 and another worker selects the "Calibration" button from the main menu displayed on the monitor 14 of the second operating unit P2. In other words, the output processing unit 24 displays a calibration selection menu on the monitor 14 of the first operating unit P1, and also displays a calibration selection menu on the monitor 14 of the second operating unit P2.

State L in Figure 9 shows the state after a worker taps the "Foreground" button on the monitor 14 of the first operation unit P1 in state K to select the foreground (first work unit W1), and another worker taps the "Foreground" button on the monitor 14 of the second operation unit P2 to select the foreground (second work unit W2). In other words, the exclusive processing unit 23 assigns the first operation unit P1 to the first work unit W1 and the second operation unit P2 to the second work unit W2.

The exclusive processing unit 23 then permits the first operation unit P1 to operate the first working unit W1 but prohibits the second operation unit P2 from operating it, and permits the second operation unit P2 to operate the second working unit W2 but prohibits the first operation unit P1 from operating it. The output processing unit 24 displays the "Back" button for operating the second working unit W2 on the monitor 14 of the first operation unit P1 in an inoperable state, and displays the "Back" button for operating the first working unit W1 on the monitor 14 of the second operation unit P2 in an inoperable state.

State M in Figure 9 shows the state after an operator taps the "Start" button on the monitor 14 of the first operation unit P1 in state L, and another operator taps the "Start" button on the monitor 14 of the second operation unit P2. In other words, the first calibration is performed by the first calibration processing unit 30, and the second calibration is performed by the second calibration processing unit 32. The output processing unit 24 then displays a calibration status screen for the first operation unit W1 on the monitor 14 of the first operation unit P1, and a calibration status screen for the second operation unit W2 on the monitor 14 of the second operation unit P2.

A "Stop" button is displayed on the monitor 14 of the first operation unit P1 to stop the calibration of the first working unit W1. Furthermore, a "Stop" button is displayed on the monitor 14 of the second operation unit P2 to stop the calibration of the second working unit W2. In other words, an exclusive state is established in which operations for the first working unit W1 are permitted from the first operation unit P1, but operations for the second working unit W2 are not permitted (prohibited). Similarly, an exclusive state is established in which operations for the second working unit W2 are permitted from the second operation unit P2, but operations for the first working unit W1 are not permitted (prohibited).

Next, a first modified example of component mounting devices M1 to M4 will be described with reference to Figures 10A and 10B. Figure 10A is a block diagram showing the configuration of the control system of the first modified example of the two-stage/two-head component mounting devices (each of M1 to M4). Figure 10B is a flow diagram showing the processing of the input processing unit 21 of the first modified example of the two-stage/two-head component mounting device.

The first variant differs from the component mounting devices M1 to M4 shown in FIG. 5 in that unique operation unit identification information 15 is set for each of the first operation unit P1 and second operation unit P2. The differences from the component mounting devices M1 to M4 shown in FIG. 5 are explained below. When outputting operation information to the control unit 20, the first operation unit P1 and second operation unit P2 output the operation unit identification information 15 set for each. The input receiving unit 26 receives the operation information and the operation unit identification information 15 (Yes in ST11).

The input processing unit 21 then determines the command entered on the touch screen 13 based on the operation information (ST12). The output unit 28 then associates the determined command with the received operation unit identification information 15 or the identification result by the operation unit identification unit 27 and outputs them (ST13). In this way, unique operation unit identification information 15 is set for multiple operation units, and the input processing unit 21 identifies the operation unit that output the operation information based on the operation unit identification information 15 received together with the operation information. This makes it possible to correctly identify the operation unit that output the operation information even if the first operation unit P1 is mistakenly connected to the second connection port T2.

Next, a second modified example of the component mounting devices M1 to M4 will be described with reference to FIG. 11. FIG. 11 is a block diagram showing the configuration of the control system of the second modified example of the two-stage/two-head component mounting devices (M1 to M4). The second modified example differs from the first modified example in that the first operation unit P1, the second operation unit P2, and the control unit 20 wirelessly transmit and receive information. The differences from the first embodiment will be described below. The first operation unit P1 and the second operation unit P2 each include an operation unit-side communication unit 16. The control unit 20 includes a control unit-side communication unit 38. The operation unit-side communication unit 16 and the control unit-side communication unit 38 wirelessly transmit and receive various information. In other words, the operation information and operation unit identification information 15 output from the first operation unit P1 are transmitted wirelessly from the operation unit-side communication unit 16 to the control unit 20 via the control unit-side communication unit 38.

Furthermore, the execution results output from the output processing unit 24 and displayed on the monitor 14 of the operation unit are wirelessly transmitted from the control unit communication unit 38 to the operation unit communication unit 16 of the operation unit (first operation unit P1 or second operation unit P2) identified in the identification result. This allows an operator carrying the first operation unit P1 or second operation unit P2 to appropriately operate the multiple operation units (operation units) of the component mounting devices M1-M4 from a location away from the component mounting devices M1-M4. Instead of the control unit communication unit 38, an access point capable of wirelessly communicating with the operation unit communication unit 16 may be installed in the factory where the component mounting devices M1-M4 are located, and the access point may be connected to the control units 20 of the component mounting devices M1-M4 via a wired communication network.

As explained above, the component mounting devices M1-M4 (working devices) of this embodiment include a control unit 20 that causes the first work unit U1 and the second work unit U2 (first work unit W1, second work unit W2) to perform a component mounting task (predetermined task) of mounting components on a board 2 and a specific task, and multiple operation units (first operation unit P1, second operation unit P2) connected to the control unit 20. The control unit 20 also includes an input processing unit 21, a processing unit 22, an exclusive processing unit 23, and an output processing unit 24. This allows appropriate operations to be performed from each operation unit even when operations are simultaneously performed from multiple operation units on multiple work units or work units.

While the above describes the control system configuration of two-stage/two-head component mounting devices M1-M4, the control system configuration of four-stage/four-head component mounting devices M5 and M6 is similar. That is, component mounting devices M5 and M6 (working devices) are equipped with a control unit 20 that causes the first work unit U1 (first work section W1), second work unit U2 (second work section W2), third work unit U3 (third work section W3), and fourth work unit U4 (fourth work section W4) to perform a component mounting task (predetermined task) of mounting components on a board 2 and a specific task, and multiple operation units (first operation section P1, second operation section P2) connected to the control unit 20.

The control unit 20 has an input processing unit 21, a processing unit 22, an exclusive processing unit 23, and an output processing unit 24. This allows appropriate operations to be performed from multiple operation units (first operation unit P1, second operation unit P2) on multiple work units (first work unit U1, second work unit U2, third work unit U3, fourth work unit U4).

The working device disclosed herein has the advantage of being able to appropriately control the working unit from multiple operating units, making it useful in fields where components are mounted on circuit boards.

1 Mounting board production line 2 Board 3 Component supply unit (tape feeder)
DESCRIPTION OF REFERENCE NUMERALS 4 Base 5 Cart 6 Carrier tape 7 Reel 8 Y-axis table 8A First Y-axis table 8B Second Y-axis table 9 Y-axis support section 10 Guide section 11 Y-axis linear motor 11A First Y-axis linear motor 11B Second Y-axis linear motor 12 Component holding nozzle 13 Touch screen 14 Monitor 20 Control section 21 Input processing section 22 Processing section 23 Exclusive processing section 24 Output processing section 25 Memory section 26 Input receiving section 27 Operation section identification section 28 Output section 29 Component mounting processing section 30 First calibration processing section 31 First teaching processing section 32 Second calibration processing section 33 Second teaching processing section 34 Production program 35 Teaching/calibration data 36 Operation performance data 37 Device status data A1 First area A2 Second area A3 Third area A4 Fourth area B1 First beam B2 Second beam B3 Third beam B4 Fourth beam C1 First head camera (first imaging unit)
C2 Second head camera (second imaging unit)
C3 Third head camera (third imaging unit)
C4 4th head camera (4th imaging unit)
D1 First linear motor D2 Second linear motor D3 Third linear motor D4 Fourth linear motor E1 First moving member E2 Second moving member F1 First work head moving mechanism F2 Second work head moving mechanism F3 Third work head moving mechanism F4 Fourth work head moving mechanism G1 First component camera G2 Second component camera G3 Third component camera G4 Fourth component camera H1 First component mounting head H2 Second component mounting head H3 Third component mounting head H4 Fourth component mounting head J1 First reference point J2 Second reference point J3 Third reference point J4 Fourth reference point K1, K2 Board transport conveyor L1 First board transport lane L2 Second board transport lane M1 to M6 Component mounting device (working device)
P1 First operation section (operation section)
P2 Second operation section (operation section)
S1 First component supply unit S2 Second component supply unit S3 Third component supply unit S4 Fourth component supply unit T1 First connection port (connection port)
T2 Second connection port (connection port)
U1 First working unit U2 Second working unit U3 Third working unit U4 Fourth working unit W1 First working section (working section)
W2 Second working section (working section)
W3 Third working section (working section)
W4 4th working section (working section)

Claims (3)

A work device comprising a work unit that performs work, a control unit that controls the work unit, and a plurality of operation units connected to the control unit,
each of the plurality of operation units has an input unit and a display unit;
The control unit
an input processing unit that receives operation information from each of the plurality of operation units, identifies which of the plurality of operation units the received operation information is input from, and outputs a command based on the operation information;
a processing unit that executes processing based on the instruction;
an output processing unit that displays an execution result of the command on the display unit of the operation unit specified by the identification,
A work device that, when the work is being performed on one operation unit, causes a display unit provided on the other operation unit to display a notification indicating that the specified operation has been performed on the one operation unit , and when the specified operation is performed on the other operation unit while the notification is being displayed, causes a display unit provided on the one operation unit to display a notification indicating that the specified operation has been performed on the other operation unit . the plurality of operation units are individually connected to a plurality of connection ports provided in the control unit,
The work device according to claim 1 , wherein the input processing unit detects which of the plurality of connection ports the operation information has passed through, and identifies the operation unit that has output the operation information. unique operation unit identification information is set for each of the plurality of operation units,
The work device according to claim 1 , wherein the input processing unit identifies the operation unit that has output the operation information based on operation unit identification information received together with the operation information.