WO2014087480A1

WO2014087480A1 - Component mounting apparatus

Info

Publication number: WO2014087480A1
Application number: PCT/JP2012/081372
Authority: WO
Inventors: 識西山
Original assignee: 富士機械製造株式会社
Priority date: 2012-12-04
Filing date: 2012-12-04
Publication date: 2014-06-12
Also published as: JPWO2014087480A1; JP6108414B2

Abstract

The present invention is configured such that a small component sucking apparatus (12) or a large component sucking apparatus (13) is attached to a head moving apparatus (11) of a component mounting apparatus by replacing the small component sucking apparatus and the large component sucking apparatus with each other corresponding to the sizes of components (A, B) to be sucked, and an image pickup apparatus (18) that picks up an image of the small component (A) from the side of the small component is attached to the head moving apparatus (11), said small component being sucked by means of the small component sucking nozzle (14). An optical system unit (20) is vertically movably constituted, said optical system unit being an image pickup apparatus (18) part having a possibility of interfering with the large component (B) being sucked by means of the large component sucking apparatus (13). In the cases where the large component sucking apparatus (13) is held by means of the head moving apparatus (11), the optical system unit (20) is brought up to a retracting position where the optical system unit does not interfere with the large component (B), said optical system unit being the image pickup apparatus (18) part having a possibility of interfering with the large component (B) being sucked by means of the large component sucking apparatus (13).

Description

Component mounter

The present invention is an invention related to a component mounting machine including an image pickup device that picks up an image of a small component sucked by a suction device from the side.

In a component mounting machine, as described in Patent Document 1 (Japanese Patent Laid-Open No. 2008-311476), when a component supplied from a feeder is attracted to a suction device and mounted on a circuit board, the suction device is used. An image pickup device (an optical system unit and a camera with a built-in prism, illumination light source, etc.) is arranged on the side of the suction device to recognize the suction posture of the sucked component and the presence / absence of the component from the side. In some cases, a side image of a component adsorbed on the camera is captured by a camera via an optical system unit.

JP 2008-311476 A

By the way, in a component mounting machine that covers a wide range of parts that are attracted to the suction device from small to large parts, the suction device for small parts and the suction device for large parts are replaced according to the size of the parts to be sucked. Like to do. In this type of component mounting machine, when the imaging device is arranged on the side of the suction device, when the large component is sucked, the large component may interfere with the optical system unit of the imaging device. For this reason, there is a drawback that the size of the large component that can be sucked is limited within a range that does not interfere with the imaging apparatus.

Therefore, the problem to be solved by the present invention is to provide a large component suction device in a component mounting machine configured to replace the small component suction device and the large component suction device in accordance with the size of the component to be sucked. It is an object of the present invention to provide a component mounting machine that can prevent a large component adsorbed on the surface from interfering with an imaging device that images its side surface.

In order to solve the above problems, the present invention provides a component mounting machine configured to replace and attach a small component adsorption device and a large component adsorption device in accordance with the size of the component to be adsorbed. An image pickup device for picking up an image of a small part adsorbed by the adsorbing device from the side, and a portion of the image pickup apparatus that may interfere with at least the large component adsorbed by the adsorbing device for large components. And a position switching device that moves between a retracted position that does not interfere with the image pickup position and an image pickup position for picking up an image of the small component adsorbed by the small component adsorption device.

In general, the suction orientation of small parts may be abnormal (oblique suction, standing suction, etc.), so it is necessary to recognize the image of the suction orientation of small parts. Therefore, there is little need to recognize the image of the suction posture of the large component.

In consideration of this point, in the present invention, in the configuration in which the small component sucked by the small component suction device is imaged from the side by the imaging device, when the large component is sucked by the large component suction device, Of these, at least a portion that may interfere with the large component adsorbed by the large component adsorption device is moved to a retreat position that does not interfere with the large component. If it does in this way, it can prevent that the large component adsorbed by the adsorption device for large components interferes with the imaging device which picturizes the side, and can enlarge the size of the large component which can be adsorbed.

According to the present invention, the small component suction device includes a plurality of small component suction nozzles and a mounting head that detachably holds each of the small component suction nozzles. The large-sized component suction nozzle and a holder portion provided on the upper portion of the large-component suction nozzle may be configured so that the mounting structure for the head moving device is shared with the mounting head. .

Or, the adsorption device for small parts holds the adsorption nozzle for small parts that adsorbs small parts, and the adsorption device for large parts holds the adsorption nozzle for large parts that adsorbs large parts and is attached to the head moving device. You may comprise so that the said attachment nozzle for small parts and the said adsorption nozzle for large sized parts may be replaced | exchanged and attached to the mounted | wearing mounting head according to the size of the components to adsorb | suck. In short, only the suction nozzle may be replaced according to the size of the part to be sucked.

In addition, the present invention provides an optical system unit that positions the imaging device on a side of a small component adsorbed by a small component adsorption device, and that includes a side surface of the small component within a field of view. It may be configured from a camera that captures an image of a side surface of a small component, and the position switching device may be configured to move the optical system unit between the retracted position and the imaging position. With this configuration, it is not necessary to move the camera, and the movable part of the imaging device can be reduced in size and weight.

FIG. 1 is a diagram for explaining the positional relationship between a small component sucked by a small component suction nozzle and an optical system unit of an imaging apparatus according to an embodiment of the present invention. FIG. 2 is a diagram for explaining the positional relationship between the large component sucked by the large component suction nozzle and the optical system unit of the imaging apparatus. FIG. 3 is an external perspective view of the entire imaging apparatus showing a state where the optical system unit of the imaging apparatus is lowered to the imaging position. FIG. 4 is an external perspective view of the entire imaging apparatus showing a state where the optical system unit of the imaging apparatus is raised to the retracted position.

Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described.
As shown in FIG. 1 and FIG. 2, the small component suction device 12 and the large component suction device 13 are replaced and attached to the head moving device 11 of the component mounting machine according to the sizes of the components A and B to be sucked. It is configured as follows. The small component suction device 12 is configured to detachably hold a plurality of small component suction nozzles 14 for sucking the small component A to the mounting head 15, and the mounting head 15 is detachable from the head moving device 11. Retained.

On the other hand, the large component suction device 13 includes a single large component suction nozzle 16 for sucking the large component B and a holder portion 17 provided on the upper portion of the large component suction nozzle 16. The unit 17 is configured to replace the mounting head 15 of the small component suction device 12 with the head moving device 11 so as to be detachable, and the mounting structure for the head moving device 11 is the mounting head of the small component suction device 12. 15 and common. During operation of the component mounting machine, the small component A or the large component B supplied by a component supply device (not shown) is adsorbed by the small component adsorption nozzle 14 or the large component adsorption nozzle 16 and mounted on the circuit board. .

The head moving device 11 is attached with an imaging device 18 that images the small component A sucked by the small component suction nozzle 14 from the side, and the imaging device 18 moves integrally with the small component suction device 12. It is configured as follows. As shown in FIGS. 3 and 4, the imaging device 18 includes a camera 19, an optical system unit 20 including a prism, an illumination light source, and the like, and an air cylinder 21 (position switching device) that moves the optical system unit 20 up and down. It is the composition provided with.

The optical system unit 20 is disposed on the side of the small component A sucked by the small component suction nozzle 14 so that the side surface of the small component A falls within the field of view (see FIG. 1). The base end side and the distal end side of the unit 20 are attached to the support frame 22 and the support shaft 23. The support frame 22 is connected to the rod 21a of the air cylinder 21, and the optical system unit 20 is guided by the linear guide 24 to move up and down by the vertical movement of the rod 21a. The support shaft 23 that supports the distal end side of the optical system unit 20 is inserted into a guide 25 fixed to the component mounter side so as to be movable up and down, and the optical system unit 20 shakes when the optical system unit 20 moves up and down. Is suppressed by the support shaft 23.

The camera 19 is fixed to the head moving device 11 side via the main body frame 26 of the imaging device 18 with the lens side facing downward, and images the side surface of the small component A through the optical system unit 20. The air cylinder 21 and the linear guide 24 are also fixed to the main body frame 26. With the camera 19 and the air cylinder 21 fixed to the main body frame 26, only the optical system unit 20 moves up and down by the vertical movement of the rod 21a of the air cylinder 21. It comes to move.

When the small component suction device 12 is held by the head moving device 11, as shown in FIGS. 1 and 3, by lowering the rod 21a of the air cylinder 21, the optical system unit 20 is sucked by the small component. The small component A sucked by the device 12 is lowered to the side imaging position.

On the other hand, when the large component suction device 13 is held by the head moving device 11, as shown in FIGS. 2 and 4, the rod 21 a of the air cylinder 21 is raised to increase the size of the imaging device 18. The optical system unit 20, which is a portion that may interfere with the large component B sucked by the component suction device 13, is raised to a retracted position that does not interfere with the large component B.

In general, because the small component A may have an abnormal suction posture (oblique suction, standing suction, etc.), it is necessary to recognize the suction posture of the small component A, but the large component B is stably sucked. Therefore, there is little need to image-recognize the suction posture of the large component B.

In consideration of this point, in this embodiment, in the configuration in which the small component A sucked by the small component suction device 12 is imaged by the imaging device 18 from the side, the large component B is sucked by the large component suction device 16. In this case, the optical system unit 20, which is a portion that may interfere with the large component B sucked by the large component suction device 13 in the imaging device 18, is moved to a retracted position that does not interfere with the large component B. It is a thing. In this way, it is possible to prevent the large component B adsorbed by the large component adsorbing device 13 from interfering with the imaging device 18 that images its side surface, and the size of the adsorbable large component B can be increased.

Further, as in the present embodiment, only the optical system unit 20 that is a portion that may interfere with the large component B sucked by the large component suction device 13 in the imaging device 18 interferes with the large component B. If the camera 19 is moved to the retracted position, the camera 19 does not need to be moved, and there is an advantage that the movable part of the imaging device 18 can be reduced in size and weight. However, the present invention may be configured such that the camera 19 of the imaging device 18 is also moved to the retracted position integrally with the optical system unit 20, and even in this case, the intended purpose of the present invention can be sufficiently achieved.

Moreover, in the said Example, the adsorption | suction apparatus 12 for small parts comprised the adsorption nozzle 14 for several small parts, and the mounting head 15 which hold | maintains each adsorption nozzle 14 for small parts so that attachment or detachment is possible, Component mounting machine The plurality of small component suction nozzles 14 and the mounting head 15 are integrally attached to and detached from the head moving device 11, but the components to be sucked by the mounting head attached to the head moving device are arranged. Depending on the size, the suction nozzle for small parts and the suction nozzle for large parts may be exchanged and held. In short, only the suction nozzle may be replaced according to the size of the part to be sucked.

In addition, the present invention is not limited to the above-described embodiments. For example, the configuration of the imaging device 18 may be appropriately changed, and the optical system unit 20 of the imaging device 18 is moved between the imaging position and the retracted position. The position switching device to be operated is not limited to the air cylinder 21, and other actuators such as a motor may be used, and the moving direction of the optical system unit 20 of the imaging device 18 is not limited to the vertical direction, and the diagonal vertical direction Needless to say, various modifications can be made without departing from the scope of the invention, such as a horizontal direction.

DESCRIPTION OF SYMBOLS 11 ... Head moving device, 12 ... Small component adsorption device, 13 ... Large component adsorption device, 14 ... Small component adsorption nozzle, 15 ... Mounting head, 16 ... Large component adsorption nozzle, 17 ... Holder part, 18 ... Imaging device, 19 ... camera, 20 ... optical system unit, 21 ... air cylinder (position switching device), A ... small component, B ... large component, C ... circuit board

Claims

In a component mounter configured to replace and attach a small component adsorption device and a large component adsorption device according to the size of the component to be adsorbed,
An image pickup device for picking up an image of a small component adsorbed by the small component adsorption device from the side;
A retraction position that does not interfere with the large component and a small component adsorbed by the small component adsorption device at least a portion of the imaging device that may interfere with the large component adsorbed by the large component adsorption device. A component mounting machine comprising: a position switching device that moves between an imaging position for imaging.
The small component suction device comprises a plurality of small component suction nozzles and a mounting head that detachably holds each small component suction nozzle,
The large component suction device includes a single large component suction nozzle and a holder portion provided on the upper portion of the large component suction nozzle. The holder portion has a mounting structure with respect to a head moving device. The component mounter according to claim 1, wherein the component mounter is shared.
The small component adsorption device holds a small component adsorption nozzle for adsorbing small components,
The large component adsorption device holds a large component adsorption nozzle that adsorbs large components,
The small-sized component suction nozzle and the large-sized component suction nozzle are replaced and mounted on a mounting head attached to the head moving device according to the size of the component to be sucked. Item mounting machine of item 1.
The imaging apparatus includes an optical system unit that is located on a side of the small component adsorbed by the small component adsorption device and that accommodates the side surface of the small component within a visual field, and the side surface of the small component through the optical system unit. It consists of a camera for imaging,
The component mounting machine according to claim 1, wherein the position switching device is configured to move the optical system unit between the retracted position and the imaging position.