WO2015056313A1

WO2015056313A1 - Work machine

Info

Publication number: WO2015056313A1
Application number: PCT/JP2013/078058
Authority: WO
Inventors: 和弘浅田; 真宏渡邊; 佳充渡邊; 秀幸熊澤
Original assignee: 富士機械製造株式会社
Priority date: 2013-10-16
Filing date: 2013-10-16
Publication date: 2015-04-23
Also published as: JPWO2015056313A1; JP6283681B2

Abstract

　A mounting machine (16) equipped with a glass cover (82), provided to a cover housing (80) covering a base, the glass cover (82) making the interior of the cover housing visible, wherein the light transmittance of the glass cover can be varied. This makes it possible to vary the light transmittance of the glass cover in accordance with the state of the mounting operation by the mounting machine, and for the operator to appropriately ascertain the interior of the device once the mounting operation is appropriately accomplished. In a specific example, the light transmittance is reduced when an image-capturing device for capturing the image of an electronic component, a circuit board, etc., is operating, and the light transmittance is increased when the image-capturing device is stopped, whereby the effect of ambient light during the capturing of an image by the image-capturing device can be suppressed. This makes it possible to adequately capture images by the image-capturing device and for the operator to appropriately ascertain the interior of the device once the mounting operation is appropriately accomplished by the mounting machine.

Description

Working machine

The present invention relates to a working machine provided with at least a part of a cover housing that covers a base and having a transparent portion for visually observing the inside of the cover housing.

Many work machines are provided with a cover housing that covers the base in order to prevent dust and the like from entering the work machine. Many of the cover housings are provided with a transparent portion for viewing the inside of the cover housing. The following patent document describes an example of such a working machine.

JP 2012-227383 A

As described in the above-mentioned patent document, it is possible to visually check the inside of the work machine by providing a transparent portion in the cover housing. However, there is a possibility that the work performed by the work implement cannot be appropriately performed due to the light entering the work implement. Specifically, for example, a work machine may include an imaging device, and work may be performed based on imaging data captured by the imaging device. In such a case, it is desirable that imaging by the imaging device is appropriately performed, but there is a possibility that imaging by the imaging device may not be appropriately performed due to light entering the work machine. The present invention has been made in view of such circumstances, and in a working machine provided with a transparent portion in the cover housing, the work by the working machine is appropriately secured, and the operator confirms the inside of the apparatus. The task is to do it properly.

In order to solve the above-described problem, a working machine according to claim 1 of the present application is provided with at least a part of a cover housing that covers a base, and includes a transparent portion for visually observing the inside of the cover housing. And it is possible to change the light transmittance of the said transparent part, It is characterized by the above-mentioned.

Further, in the work machine according to claim 2, in the work machine according to claim 1, at least a part of the transparent part functions as a display part for displaying an image.

According to a third aspect of the present invention, there is provided the work machine according to the first or second aspect, wherein the work apparatus performs a work by the control device that changes the light transmittance of the transparent portion in a controllable manner. One or more actuating devices for controlling the light transmittance of the transparent portion when at least one operation of the one or more actuating devices is stopped. It is characterized in that it is higher than the light transmittance of the transparent part when at least one is operating.

Further, in the work machine according to claim 4, in the work machine according to any one of claims 1 to 3, it is possible to change the entire light transmittance of the transparent portion, The light transmittance of only a predetermined part of the transparent part can be changed.

In the work machine according to claim 1, it is possible to change the light transmittance of the transparent portion. Thereby, it becomes possible to change the light transmittance of a transparent part according to the condition of the work by a working machine, and it becomes possible to ensure the suitable work by a working machine. In other words, when the operator wants to check the inside of the device, the light transmittance is increased, specifically, for example, the light transmittance of the transparent portion when the imaging device of the work machine is operating is reduced, By increasing the light transmittance of the transparent part when the imaging device of the work machine is stopped, it becomes possible to appropriately perform imaging with the imaging device, and work after ensuring the appropriate work by the working machine It is also possible for a person to check inside the apparatus.

Further, in the work machine according to claim 2, at least a part of the transparent portion functions as a display portion for displaying an image. As a result, the space for disposing the display unit becomes unnecessary, and the space for the work machine can be saved.

In the work machine according to claim 3, the light transmittance of the transparent portion when the operation of at least one of the one or more operation devices constituting the work machine is stopped is such that the at least one device is It is made higher than the light transmittance of the transparent part during operation. As a result, it is possible to make it difficult for light to enter the work implement when at least one device is operating, and to ensure proper operation of the device, that is, proper work by the work implement. Is possible.

Further, in the working machine according to the fourth aspect, it is possible to change the light transmittance of the entire transparent portion and change the light transmittance of only a predetermined portion of the transparent portion. Thereby, for example, when the light transmittance of the entire transparent portion is increased, the inside of the work machine can be visually observed in a wide range. On the other hand, when the light transmittance of a part of the transparent portion is increased, the inside of the work machine can be visually observed while suppressing the entry of light into the work machine to some extent.

It is a perspective view which shows the electronic component mounting apparatus which is an Example of this invention. It is a top view which shows the electronic component mounting apparatus of the state which removed the cover housing and the glass cover. It is a block diagram which shows the control apparatus with which an electronic component mounting apparatus is provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention.

<Configuration of electronic component mounting device>
FIG. 1 shows an electronic component mounting apparatus 10. The electronic component mounting apparatus 10 has one system base 12 and two mounting machines 16 arranged side by side on the system base 12. In the following description, the direction in which the mounting machines 16 are arranged is referred to as the X-axis direction, and the horizontal direction perpendicular to the direction is referred to as the Y-axis direction.

As shown in FIG. 2, each mounting machine 16 mainly includes a mounting machine main body 20, a transport device 22, a mounting head moving device (hereinafter sometimes abbreviated as “moving device”) 24, a mounting head 26, and a supply device. 28. The mounting machine main body 20 is configured by a frame portion 30 and a beam portion (not shown) placed on the frame portion 30.

The transport device 22 includes two

conveyor devices

40 and 42. The two

conveyor devices

40 and 42 are disposed in the frame portion 30 so as to be parallel to each other and extend in the X-axis direction. Each of the two

conveyor devices

40 and 42 conveys a circuit board supported by the

conveyor devices

40 and 42 in the X-axis direction by an electromagnetic motor (see FIG. 3) 46. The circuit board is fixedly held by a board holding device (see FIG. 3) 48 at a predetermined position.

The moving device 24 is an XY robot type moving device, and is provided in the beam section of the mounting machine body 20. The moving device 24 includes an electromagnetic motor (see FIG. 3) 52 that slides the slider 50 in the X-axis direction and an electromagnetic motor (see FIG. 3) 54 that slides in the Y-axis direction. A mounting head 26 is attached to the slider 50, and the mounting head 26 moves to an arbitrary position on the frame unit 30 by the operation of the two

electromagnetic motors

52 and 54.

The mounting head 26 mounts electronic components on the circuit board. The mounting head 26 has a suction nozzle 60 provided on the lower end surface. The suction nozzle 60 communicates with a positive / negative pressure supply device (see FIG. 3) 62 via negative pressure air and positive pressure air passages. The suction nozzle 60 sucks and holds the electronic component with a negative pressure, and detaches the held electronic component with a positive pressure. The mounting head 26 has a nozzle lifting device (see FIG. 3) 64 that lifts and lowers the suction nozzle 60. The mounting head 26 changes the vertical position of the electronic component to be held by the nozzle lifting device 64. Further, the mounting head 26 has a nozzle rotation device 66 (see FIG. 3) 66 that rotates the suction nozzle 60. By the nozzle rotation device 66, the mounting head 26 adjusts the holding posture of the electronic component. The suction nozzle 60 is detachable from the mounting head 26.

The supply device 28 is a feeder-type supply device, and is disposed at the front end of the frame portion 30. The supply device 28 has a tape feeder 70. The tape feeder 70 accommodates the taped component in a wound state. The taped component is a taped electronic component. Then, the tape feeder 70 sends out the taped parts by a delivery device (see FIG. 3) 72. Thereby, the feeder type supply device 28 supplies the electronic component at the supply position by feeding the taped component. The tape feeder 70 can be attached to and detached from the frame unit 30 and can cope with replacement of electronic components.

The mounting machine 16 includes a mark camera 76 and a parts camera 78. The mark camera 76 is fixed to the lower surface of the slider 50 so as to face downward, and can capture an arbitrary position on the circuit board. The parts camera 78 is disposed between the transport device 22 and the supply device 28 and can capture an image of the electronic component held by the mounting head 26.

The mounting machine 16 includes a cover housing 80 and a glass cover 82 as shown in FIG. The cover housing 80 covers the upper surface of the frame portion 30 of the mounting machine body 20, and the transport device 22, the moving device 24, and the like are accommodated in the cover housing 80. Further, two carry-in / out ports (only one is shown in the figure) 84 are formed on both side surfaces of the cover housing 80, and the circuit boards conveyed by the

conveyor devices

40 and 42 from the carry-in / out port 84. Is carried out, or a circuit board conveyed by the

conveyor devices

40 and 42 is carried in.

The glass cover 82 is attached to the upper surface on the front side of the cover housing 80 so as to be rotatable around an axis 86 that is horizontal and parallel to the width direction of the mounting machine 16. Thereby, the glass cover 82 rotates between a closed position that covers the inside of the mounting machine 16 and an open position that opens the inside of the mounting machine 16. Further, the glass cover 82 is constituted by two laminated transparent acrylic plates (not shown) and a light control film (see FIG. 3) 88 and 90 interposed between the two acrylic plates. Yes. A light control film (hereinafter may be referred to as a “first light control film”) 88 is interposed between two acrylic plates at a predetermined position 92 on the front side of the glass cover 82, and the light control film (hereinafter referred to as “light control film”). , Which may be described as “second light control film”) 90 is interposed between the two acrylic plates in a portion other than the predetermined position 92 of the glass cover 82.

The

light control films

88 and 90 are thin films having a high light transmittance when a voltage is applied and a low light transmittance when no voltage is applied. That is, the

light control films

88 and 90 become transparent when a voltage is applied, and become opaque when the voltage application is released. For this reason, when a voltage is applied to the

light control films

88 and 90, the whole surface of the glass cover 82 becomes transparent, and the inside of the mounting machine 16 can be visually observed. On the other hand, when the application of the voltage to the

light control films

88 and 90 is canceled, the entire surface of the glass cover 82 becomes opaque and the inside of the mounting machine 16 cannot be visually observed. Moreover, by applying a voltage only to the light control film 88, only the predetermined position 92 of the glass cover 82 becomes transparent, and the inside of the mounting machine 16 can be visually observed from the predetermined position 92.

Further, a display panel 96 is integrally disposed below the predetermined position 92 of the glass cover 82. The display panel 96 is a transparent plate-like member capable of displaying an image. When a voltage is applied to the light control film 90, the inside of the mounting device 16 is visually observed through the display panel 96. Is possible. The display panel 96 also has a function as a touch panel. That is, for example, when an operation button or the like is displayed on the display panel 96 and the operator operates the displayed operation button, a command corresponding to the operation button is input to the mounting machine 16.

The mounting machine 16 further includes a control device 100 as shown in FIG. The control device 100 includes a controller 102, a plurality of drive circuits 106, and a plurality of control circuits 108. The plurality of drive circuits 106 are connected to the

electromagnetic motors

46, 52, 54, the substrate holding device 48, the positive / negative pressure supply device 62, the nozzle lifting / lowering device 64, the nozzle rotation device 66, and the delivery device 72. The controller 102 includes a CPU, a ROM, a RAM, and the like, mainly a computer, and is connected to a plurality of drive circuits 106. Thereby, the operations of the transport device 22 and the moving device 24 are controlled by the controller 102.

The controller 102 is connected to a plurality of control circuits 108, and the plurality of control circuits 108 are connected to a light control film 88, a light control film 90, and a display panel 96. As a result, the application of voltage to the

light control films

88 and 90 and the display of the image on the display panel 96 are controlled by the controller 102. Further, the controller 102 is also connected to the image processing apparatus 110. The image processing apparatus 110 processes image data obtained by the mark camera 76 and the part camera 78, and the controller 102 acquires various types of information from the image data.

<Mounting work with a mounting machine>
In the mounting machine 16, the mounting operation can be performed by the mounting head 26 on the circuit board held by the transport device 22 with the above-described configuration. Specifically, the circuit board is transported to the work position according to a command from the controller 102, and is fixedly held by the board holding device 48 at that position. Next, the mark camera 76 moves above the circuit board in accordance with an instruction from the controller 102 and images the circuit board. Thereby, the controller 102 acquires information regarding the error of the holding position of the circuit board. Further, the tape feeder 70 sends out a taped component and supplies an electronic component at a supply position in accordance with a command from the controller 102.

Then, the mounting head 26 moves above the supply position of the electronic component in response to a command from the controller 102 and sucks and holds the electronic component by the suction nozzle 60. Subsequently, the mounting head 26 moves above the parts camera 78 in response to a command from the controller 102, and the parts camera 78 images the electronic component sucked and held by the suction nozzle 60. Thereby, the controller 102 acquires information regarding the error in the suction position of the electronic component. Then, the mounting head 26 moves above the circuit board in accordance with a command from the controller 102 and corrects the held electronic component on the circuit board by correcting the holding position error, the suction position error, and the like.

<Change of light transmittance of glass cover>
In the mounting machine 16, as described above, the circuit board held by the board holding device 48 and the electronic component sucked and held by the suction nozzle 60 at the work position are placed in the mark camera 76 or the part camera 78 during the mounting work. An image is picked up, and an error between the holding position of the circuit board and the suction position of the electronic component is calculated based on the picked-up data. Then, after correcting the error by the operation of the nozzle elevating device 64 or the like, the electronic component is mounted on the circuit board. Thereby, an electronic component is mounted | worn in an appropriate state and manufacture of a highly accurate circuit board is ensured. For this reason, it is preferable that imaging by the mark camera 76 and the part camera 78 is appropriately performed in order to obtain a highly accurate error in the holding position of the circuit board and an error in the suction position of the electronic component.

In order to appropriately perform imaging with the mark camera 76 and the parts camera 78, it is preferable to prevent the entry of disturbance light into the mounting machine 16. That is, it is preferable to cover the upper surface of the frame part 30 with a cover housing without a transparent part. However, when an abnormality occurs during the mounting operation, it is necessary to visually check the inside of the mounting machine 16. In view of the above, in the mounting machine 16, a glass cover 82 capable of changing the light transmittance is disposed on the cover housing 80 that covers the upper surface of the frame portion 30, and the mounting work is in a situation. Accordingly, the light transmittance of the glass cover 82 is changed.

Specifically, while the mounting operation by the mounting head 26 is being performed, specifically, at least one of the moving device 24, the mounting head 26, the supply device 28, the mark camera 76, and the part camera 78 is operating. In the meantime, no voltage is applied to the

light control films

88 and 90, and the glass cover 82 becomes opaque. As a result, it is possible to prevent disturbance light from entering the mounting machine 16, and it is possible to appropriately perform imaging with the mark camera 76 and the parts camera 78. In particular, since the cover housing 80 does not have an opening that allows light to enter other than the carry-in / out opening 84, the glass cover 82 is made opaque so that almost no light enters the cover housing 80, and the mark camera 76 and the part camera 78 can be appropriately captured.

On the other hand, while the mounting operation by the mounting head 26 is not performed, specifically, only the transfer device 22 is operating, that is, the circuit board is carried into the mounting machine 16 and transferred to the work position. The voltage is applied to the

light control films

88 and 90 while the circuit board is unloaded from the working position to the outside of the mounting machine 16, and the entire surface of the glass cover 82 becomes transparent. Thereby, it becomes possible to confirm visually that a circuit board is conveyed.

In addition, even when the mounting operation by the mounting head 26 is being performed, the glass cover 82 is made transparent if an abnormality occurs in the mounting operation. Specifically, when an abnormality occurs during the mounting operation by the mounting head 26, information indicating that an abnormality has occurred and three selection buttons (not shown) are displayed on the display panel 96. The first button of the three selection buttons is a button for applying a voltage to the

light control films

88 and 90, that is, a button for making the entire surface of the glass cover 82 transparent. The second button of the three selection buttons is a button for applying a voltage only to the light control film 88, that is, a button for making only a predetermined position 92 of the glass cover 82 transparent. A third button of the three selection buttons is a button for applying no voltage to the

light control films

88 and 90, that is, a button for maintaining the opacity of the glass cover 82.

Thereby, when the operator operates the first button, the entire surface of the glass cover 82 can be made transparent when an abnormality occurs, and the occurrence of the abnormality can be visually confirmed. . In addition, when the operator operates the second button, it is possible to make only the predetermined position 92 of the glass cover 82 transparent when an abnormality occurs, while suppressing the entry of light into the mounting machine 16. The occurrence of abnormality can be confirmed visually. Further, when the operator operates the third button, for example, the operator can open the glass cover 82 and check the inside of the mounting machine 16 without making the glass cover 82 transparent. It is.

As described above, in the mounting machine 16, the light transmittance of the glass cover 82 is changed according to the state of the mounting work, thereby preventing disturbance light during the mounting work from entering the mounting machine 16 and the circuit. It is possible to visually confirm the state of loading / unloading of the substrate and the state in the mounting machine 16 when an abnormality occurs.

Further, when an abnormality occurs, the entire surface of the glass cover 82 or a part of the glass cover 82 can be selectively made transparent. Thereby, the operator can prioritize either the prevention of the disturbance light entering the mounting machine 16 or the visual confirmation in the mounting machine 16, which is convenient.

Furthermore, the display panel 96 is integrally disposed on the glass cover 82. That is, a part of the glass cover 82 functions as a display device that can display an image. As a result, the space for disposing the display device becomes unnecessary, and the space for the mounting machine 16 can be saved.

Incidentally, in the above embodiment, the mounting machine 16 is an example of a work machine. The transport device 22 is an example of an operating device. The moving device 24 is an example of an operating device. The mounting head 26 is an example of an operating device. The supply device 28 is an example of an operating device. The frame unit 30 is an example of a base. The mark camera 76 is an example of an operating device. The parts camera 78 is an example of an operating device. The cover housing 80 is an example of a cover housing. The glass cover 82 is an example of a transparent part. The display panel 96 is an example of a display unit. The control device 100 is an example of a control device.

In addition, this invention is not limited to the said Example, It is possible to implement in the various aspect which gave various change and improvement based on the knowledge of those skilled in the art. Specifically, for example, in the above embodiment, the

light control films

88 and 90 whose light transmittance is changed by application of voltage are adopted, and the glass cover 82 is a so-called electrochromic light control glass. However, it is possible to employ other types of light control glass. Specifically, for example, it is possible to employ a light control glass using a gas, a so-called gas chromic light control glass, a light control glass using a gel electrolyte, or the like.

Moreover, in the said Example, when apparatuses other than the conveying apparatus 22 are operate | moving, when the glass cover 82 is made opaque and apparatuses other than the conveying apparatus 22 stop, ie, only the conveying apparatus 22 operates. The glass cover 82 is transparent, but at least one of the conveying device 22, the moving device 24, the mounting head 26, the supply device 28, the mark camera 76, and the parts camera 78 constituting the mounting machine 16 is provided. When operating, the glass cover 82 may be opaque, and the glass cover 82 may be transparent when the operation of at least one device stops. In such a case, at least in order to prevent light from being transmitted into the mounting machine 16 only during imaging by the mark camera 76, the parts camera 78, etc., and to check the mounting operation visually other than during imaging. As one device, an imaging device such as a mark camera 76 and a parts camera 78 can be employed. Furthermore, the glass cover 82 may be opaque when at least one of the mark camera 76 and the parts camera 78 is operating.

In the above embodiment, the technique of the present invention is applied to the mounting machine 16 for performing the mounting operation. However, the technique of the present invention is applied to an apparatus for performing various operations on the circuit board. Is possible. Specifically, for example, an apparatus for applying cream solder or the like on a circuit board, an apparatus for discharging adhesive or the like on the circuit board, an apparatus for inspecting the circuit board, or various processes on the circuit board It is possible to apply the technique of the present invention to an apparatus for performing the above. The technique of the present invention can be applied to a working machine that performs various operations without being limited to an apparatus that performs operations on a circuit board.

16: Mounting machine (work machine) 22: Transfer device (actuating device) 24: Moving device (actuating device) 26: Mounting head (actuating device) 28: Feeding device (actuating device) 30: Frame part (base) 76: Mark Camera (actuator) 78: Parts camera (actuator) 80: Cover housing 82: Glass cover (transparent part)
96: Display panel (display unit) 100: Control device

Claims

In a working machine provided with at least a part of a cover housing that covers the base and having a transparent portion for visually observing the inside of the cover housing,
A working machine characterized in that the light transmittance of the transparent part can be changed.
At least a part of the transparent part is
The work machine according to claim 1, wherein the work machine functions as a display unit for displaying an image.
The working machine is
A control device for controllably changing the light transmittance of the transparent portion;
One or more actuators for performing work by the work implement,
The control device is
The light transmittance of the transparent part when at least one operation of the one or more actuating devices is stopped is the light transmittance of the transparent part when at least one of the one or more actuating devices is operating. The working machine according to claim 1, wherein the working machine is higher.
2. The light transmittance of the entire transparent portion can be changed, and the light transmittance of only a predetermined portion of the transparent portion can be changed. 3. The working machine according to 3.