WO2016111001A1

WO2016111001A1 - Nozzle accommodating device

Info

Publication number: WO2016111001A1
Application number: PCT/JP2015/050474
Authority: WO
Inventors: 昌弘竹田
Original assignee: 富士機械製造株式会社
Priority date: 2015-01-09
Filing date: 2015-01-09
Publication date: 2016-07-14
Also published as: CN107114014A; CN107114014B; JPWO2016111001A1; JP6420851B2

Abstract

A nozzle accommodating device disposed in a component mounting machine is constituted to include (a) a device main body (70) provided with a plurality of accommodating units (76) each of which accommodates a suction nozzle and (b) a cover (82) attached to the device main body for covering some of the plurality of accommodating units so as to prohibit accommodation of suction nozzles therein. Thus, it is possible to use the nozzle accommodating device as if the same is of a different model having a different accommodation number by the simple means of attaching a cover without preparing a large number of device main bodies of different models, thereby improving the practicality of the nozzle accommodating device.

Description

Nozzle container

The present invention relates to a nozzle housing device that is disposed in a component mounting machine that mounts an electronic component on a circuit board by a suction nozzle and stores the suction nozzle.

A general component mounting machine mounts an electronic component (hereinafter simply referred to as “component”) on a circuit board (hereinafter also simply referred to as “substrate”) using a suction nozzle. Depending on the parts to be mounted, the suction nozzles can be replaced, or the suction nozzles can be replaced during the mounting work in order to deal with deterioration or malfunction of the suction nozzles. For example, a nozzle accommodating device as described in the following patent document is arranged.

JP 2004-311599 A

Problems to be Solved by the Invention

The nozzle accommodating device described in the above-mentioned patent document is provided with a plurality of nozzle accommodating portions each capable of accommodating an adsorption nozzle, and can accommodate a plurality of adsorption nozzles. Not all of the plurality of nozzle accommodating portions are used, and conversely, a larger number of nozzle accommodating portions may be required. For this reason, it is desired to prepare a plurality of types of nozzle accommodating devices having different numbers of accommodating suction nozzles. However, preparing a large number of types of nozzle accommodating devices is both a management and cost burden. This invention is made | formed in view of such a situation, and makes it a subject to provide a nozzle storage apparatus with high practicality.

In order to solve the above problems, the nozzle accommodating device of the present invention includes (a) an apparatus main body provided with a plurality of accommodating portions each accommodating an adsorption nozzle, and (b) attached to the apparatus main body. A cover that covers a part of the plurality of accommodating portions to inhibit the adsorption nozzle from being accommodated therein is configured.

According to the nozzle accommodating device of the present invention, another type of nozzle accommodating device having a different accommodation number is realized by the simple means of attaching the cover, and the practicality of the nozzle accommodating device is improved. It will be.

It is a perspective view which shows the component mounting machine by which the nozzle accommodating apparatus of this invention is arrange | positioned. It is a perspective view which shows the suction nozzle accommodated in the nozzle accommodating apparatus of this invention. It is a perspective view which shows the apparatus main body of the nozzle accommodating apparatus of this invention. It is the nozzle accommodating apparatus of this invention with which the cover was attached to the apparatus main body of FIG. It is a flowchart which shows the nozzle confirmation process performed when the nozzle accommodating apparatus of this invention is arrange | positioned.

Hereinafter, representative embodiments of the nozzle accommodating device of the present invention will be described in detail with reference to the drawings as examples. It should be noted that the present invention can be implemented in various modes in which various changes and improvements are made based on the knowledge of those skilled in the art, in addition to the following examples.

[A] Overall Configuration of Component Mounting Machine A component mounting machine in which the nozzle accommodating device of the embodiment is arranged is a work-to-board work machine that mounts a component on a substrate using a suction nozzle, and the component mounting system shown in FIG. Built in. The system includes a system base 10 and two component mounting machines 12 arranged side by side on the system base 10. The two component mounting machines 12 have the same configuration.

The component mounting machine 12 includes a main body that includes a base 14 and a frame 16 disposed on the base 14. A conveyor device 18 is disposed at the center in the front-rear direction on the base 14, and a plurality of component feeders 20 each functioning as a component supply device are disposed side by side in the left-right direction. The frame 16 supports a component mounting device 22 as a substrate working device. The component mounting device 22 includes a mounting head 24 having a suction nozzle 25 that is a component holding device, and a head moving device 26 that moves the mounting head 24 forward, backward, left, and right.

The conveyor device 18 is a device that conveys a substrate to the left and right in two front and rear lanes. The conveyor device 18 is erected so as to face the front and rear with respect to each lane, and each supports a conveyor belt (not shown) so that it can circulate. A pair of support plates 28 and a lifting platform 30 disposed between the pair of support plates 28 for lifting the substrate from below are provided. The substrate S is conveyed in the left-right direction by the conveyor belt, and the substrate S that has been conveyed to the set position during the component mounting operation is moved up and down by the lifting platform 30 to each of the pair of support plates 28. It is fixed in a state of being locked to the upper end. That is, the conveyor device 18 functions as a substrate fixing device that fixes the substrate S during component mounting work.

The component mounting operation is performed by the head moving device 26 while the mounting head 24 is moved between the component feeder 20 and the substrate S fixed by the conveyor device 18. More specifically, the mounting head 24 has a plurality of elevating shafts arranged on a circumference and each having a suction nozzle 25 attached to the lower end thereof, and each of the elevating shafts can be moved up and down. ing. As will be described in detail later, the suction nozzle 25 has a structure in which a component is sucked and held by supplying a negative pressure, and the held component is released by releasing the supply of the negative pressure. Incidentally, although not clearly shown in the figure, the mounting head 24 is configured to be attached with twelve suction nozzles 25.

The mounting head 24 holds the components supplied from the component feeder 20 at each suction nozzle 25 by lowering the lifting shaft to which each suction nozzle 25 is attached, and the held components are fixed by the conveyor device 18. On the substrate S, the lifting shaft is lowered and placed. Control of the conveyor device 18, the component feeder 20, the component mounting device 22, and the like in the component mounting operation is performed by a control device 32 in which an operation panel is integrated.

A component camera 34 is provided between the conveyor device 18 and the component feeder 20. The component held by the mounting head 24 is imaged by the component camera 34, and the component is held by processing the image obtained by the imaging. The positional shift amount is acquired, and the component is placed on the substrate S while taking the shift amount into consideration. On the other hand, a substrate camera 36 that images the surface of the substrate S is provided together with the mounting head 24, and can be moved integrally with the mounting head 24 by the head moving device 26. The board camera 36 images the reference mark provided on the board S during the component mounting work, and the amount of deviation of the fixed board S, that is, the quantity of deviation of the fixed position is obtained by processing the obtained image. The acquired component is placed on the substrate S while taking the deviation amount into consideration. The image processing and the acquisition of the deviation amount are also performed by the control device 32.

A nozzle stocker 40 for accommodating the suction nozzle 25 is disposed next to the component camera 34. This nozzle stocker 40 is the nozzle accommodating device of the embodiment.

[B] Adsorption nozzle The adsorption nozzle 25 is as shown in FIG. FIG. 2A is a view of the suction nozzle 25 as viewed from obliquely above, and FIG. 2B is a view as viewed from obliquely below. As can be seen from these drawings, the suction nozzle 25 has a cylindrical shape that functions as a main body of the suction nozzle 25, an adsorption pipe 52 that extends downward from the fuselage cylinder 50, and the fuselage cylinder 50. And a flange 54 fixed to the same cylinder 50 so as to project to the periphery. The upper end portion of the fuselage cylinder 50 is attached to the lower end portion of the lifting shaft of the mounting head 24 described above. Attachment and removal of the suction nozzle 25 is automatically performed by moving the mounting head 24 above the nozzle stocker 40 by the head moving device 26 and lowering the lifting shaft. Incidentally, two hook pins 56 are extended on the body cylinder 50, and the suction nozzle 25 is attached using the hook pins 56.

The negative pressure is supplied to the adsorption pipe 52 from the mounting head 24 through the trunk cylinder 50. By supplying the negative pressure, the component is sucked and held at the tip (lower end) of the suction tube 52, and by releasing the negative pressure supply, the sucked and held component is separated from the suction tube 52. A 2D code 58 as an identifier for recognizing unique information of the suction nozzle 25 is attached to the upper surface of the flange 54. The 2D code 58 indicates the ID of the suction nozzle 25 as a kind of unique information, and the information indicated by the ID includes the model information of the suction nozzle 25.

Although only one type is shown in the figure, there are a plurality of types of suction nozzles 25 that are different from each other in size and shape. In this component mounting machine 12, several types of suction are different in size and shape. The nozzle 25, that is, a plurality of types of suction nozzles 25 having different types can be attached to the lifting shaft. In the component mounting machine 12, these several types of nozzles can be automatically replaced in accordance with the component to be sucked and held.

[C] Nozzle storage device A nozzle stocker 40 which is a nozzle storage device is a device having a device main body 70 shown in FIG. 3 as a main component. The apparatus main body 70 includes a casing 72 and a shutter plate 74. The casing 72 is provided with sockets 76 as receiving portions on the upper surface thereof, and the suction nozzles 25 are accommodated in the sockets 76 one by one. In the apparatus main body 70 shown in the figure, 74 sockets 76 are provided, and 74 suction nozzles 25 can be accommodated.

Although it is difficult to understand in the figure, the socket 76 is a stepped hole, and the suction nozzle 25 has the outer peripheral end surface of the flange 54 almost in contact with the inner peripheral end surface of the socket 76 with the flange 54 received by the stepped surface. By fitting without a gap, it is accommodated in a proper position at a proper position.

The shutter plate 74 is provided with the same number of openings 78 as the number of sockets 76 corresponding to the positions of the sockets 76. The shutter plate 74 is reciprocated in the direction of the white arrow in the figure by a drive mechanism provided in the housing 72. The opening 78 has a circular portion through which the flange 54 of the suction nozzle 25 can pass, and a slot portion extending from the circular portion in the moving direction of the shutter plate 74 so that the body cylinder 50 of the suction nozzle 25 faces. Is formed. The figure shows a state in which the shutter plate 74 is located at the open position, and at this position, the suction nozzle 25 can be accommodated in the socket 76 and taken out from the socket 76. On the other hand, by moving the shutter plate 74 to the closed position, the suction nozzle 25 is prohibited from being accommodated in the socket 76 and taken out from the socket 76.

A 2D code 80 is attached to the end of the shutter plate 74 as an identification code of the apparatus main body 70, that is, an identification code of the nozzle stocker 40. The information indicated by the 2D code 80 is so-called ID information, and the information includes information for identifying the apparatus main body 70, that is, the type of the nozzle stocker 40. That is, the 2D code 80 functions as an identification code for identifying the apparatus main body 70, that is, the type of the nozzle stocker 40.

The operator sets the suction nozzle 25 to the nozzle stocker 40 based on, for example, an instruction sheet indicating the arrangement of the suction nozzle 25. For this reason, when it is only necessary to set a part of the sockets 76, an excessive consideration is required from the operator for setting the appropriate suction nozzle 25 in the appropriate socket 76. It might be. In view of this, in this nozzle stocker 40, in order to prohibit the suction nozzle 25 from being accommodated in the unnecessary socket 76, a cover 82 that covers a part of the socket 76 can be attached as shown in FIG. .

The cover 82 is attached so as to overlap the shutter plate 74. The cover 82 shown in the figure covers 26 sockets 76, and the nozzle stocker 40 with the cover 82 attached thereto can accommodate only 48 suction nozzles 25.

The cover 82 is also provided with a 2D code 84 as an identification code for identifying the cover 82. The 2D code 84 of the cover 82 is attached to a position located immediately above the 2D code 80 of the apparatus main body 70 in a state where the cover 82 is attached. That is, it is attached at a position overlapping the 2D code 80 of the apparatus main body 70. Therefore, when the cover 82 is attached, the nozzle stocker 40 can be treated as if it is another type of nozzle stocker 40.

[D] Nozzle Confirmation Process The nozzle confirmation process is a process performed when the nozzle stocker 40 is arranged in the component mounting machine 12, and a nozzle confirmation process program whose flowchart is shown in FIG. 5 is executed by the control device 32. Is done by. Below, a nozzle confirmation process is demonstrated along the flowchart shown in a figure.

In the nozzle confirmation process, first, in step 1 (hereinafter abbreviated as “S1”, the same applies to other steps), the 2D code of the nozzle stocker 40, more specifically, the 2D code 80 of the apparatus main body 70, or The 2D code 84 of the cover 82 is recognized. Specifically, the substrate camera 36 is moved by the head moving device 26 to a position above the position where the

2D codes

80 and 84 are attached, and the

2D codes

80 and 84 are imaged at that position. The ID of the apparatus main body 70 or the cover 82 is recognized by image processing of the captured image. As described above, when the cover 82 is attached, the 2D code 84 attached to the cover 82 overlaps the 2D code 80 attached to the apparatus main body 70, and thus the cover 82 is not attached. In this case, the 2D code 80 attached to the apparatus main body 70 is the same as the 2D code 84 attached to the cover 82 as the 2D code of the nozzle stocker 40 when the cover 82 is attached. It is recognized by processing.

In the subsequent stocker type identification process of S2, based on the recognition result of S1, the ID indicated by the 2D code, specifically, the ID of the apparatus main body 70 when the cover 82 is not attached, is attached. In this case, the ID of the cover 82 is specified as the ID of the nozzle stocker 40, and the type of the nozzle stocker 40 is identified based on the type information included in the information indicated by the specified ID. Based on the identified model, the nozzle stocker 40 identifies the sockets 76 that can accommodate the suction nozzle 25, specifically, the number of the sockets 76 and the positions of the sockets 76.

In the next S3, it is determined whether or not the arranged nozzle stocker 40 is appropriate. The component mounting work program executed by the component mounting machine 12 includes the model information of the nozzle stocker 40 to be arranged, and the model indicated by the information matches the model specified in S2. In addition, it is determined that the arranged nozzle stocker 40 is appropriate. If it is determined that the arranged nozzle stocker 40 is not appropriate, in S4, the fact that there is a problem is notified by displaying it on the panel of the control device 32, and the processing by the nozzle confirmation processing program ends. To do.

If it is determined that the arranged nozzle stocker 40 is appropriate, in S5, the suction nozzles 25 accommodated in the sockets 76 are recognized based on the positions of the sockets 76 specified in S2. Is called. Specifically, the substrate camera 36 is moved to a position above each socket 76 by the head moving device 26, and the 2D code 58 attached to the suction nozzle 25 accommodated in each socket 76 at that position. Is acquired, and the ID of the suction nozzle 25 accommodated is acquired by image processing of the captured image. In this recognition, the posture in which the suction nozzle 25 is accommodated is also recognized. This is because, if it is housed in an inappropriate posture, there is a risk of hindering component mounting work.

In the subsequent nozzle type identification process in S6, the type of each suction nozzle 25 accommodated is identified based on the ID of the suction nozzle 25 acquired in S5. In the next S7, it is determined whether or not the suction nozzle 25 accommodated is appropriate and whether or not the suction nozzle 25 is accommodated in an appropriate posture. The program of component mounting work executed by the component mounting machine 12 includes the model information of the suction nozzle 25 to be accommodated, and the model indicated by the information matches the model identified in S6. In addition, it is determined that the suction nozzle 25 accommodated therein is appropriate. Further, when the suction nozzle 25 is not tilted or misaligned, it is determined that the suction nozzle 25 is housed in an appropriate posture. Incidentally, the processing of S5 to S7 is repeatedly performed for all the sockets 76 that can accommodate the suction nozzle 25 in the nozzle stocker 40, that is, for all of the suction nozzles 25 that are accommodated by the processing of S8.

If it is determined that any of the stored suction nozzles 25 is not appropriate, or if it is determined that the suction nozzle 25 is not stored in an appropriate posture, the fact that there is a problem in S4 is indicated by the controller 32. The notification is made by displaying on the panel, and the processing by the nozzle confirmation processing program ends. On the other hand, even when all the suction nozzles 25 that are housed are proper and they are housed in a proper posture, the suction nozzles 25 necessary for the component mounting operation to be performed are housed. Has been confirmed, the processing by the nozzle confirmation processing program ends.

When the nozzle checking process as described above is performed, if there are few suction nozzles 25 that should be accommodated in the nozzle stocker 40 and there are many sockets 76 that can accommodate the suction nozzles 25, the suction nozzles 25 are in an appropriate posture. Even if some sockets 76 are empty due to the necessity of confirming that they are accommodated, the above nozzle recognition process must be executed for all sockets 76. In the nozzle stocker 40 of the embodiment, although the same apparatus main body 70 is used, the number of suction nozzles 25 that can be accommodated can be reduced by attaching the cover 82, so that the suction nozzle 25 is replaced with the nozzle stocker 40. In addition to reducing the burden on the worker engaged in the housing operation, it is possible to enjoy the advantage that the above-described processing for recognizing the suction nozzle 25 can be shortened.

Further, when the cover 82 is attached to the apparatus main body 70, the 2D code 84 attached to the cover 82 overlaps with the 2D code 80 attached to the apparatus main body 70. There is no need to change the processing program. In other words, depending on whether or not the cover 82 is attached, it is possible to realize the nozzle stocker 40 of different types without performing any special work.

12: Component mounting machine 24: Mounting head 25: Suction nozzle 26: Head moving device 32: Control device 36: Substrate camera 40: Nozzle stocker [nozzle housing device] 70: Device main body 72: Housing 74: Shutter plate 76: Socket [Container] 78: Opening 80: 2D code [Identification code] 82: Cover 84: 2D code [Identification code]

Claims

A nozzle storage device that is disposed in a component mounting machine that mounts electronic components on a circuit board by a suction nozzle and stores the suction nozzle,
An apparatus main body provided with a plurality of accommodating portions each accommodating an adsorption nozzle;
A nozzle housing device comprising: a cover attached to the device main body and covering a part of the plurality of housing portions in order to prohibit housing of the suction nozzles therein.
The nozzle accommodating device according to claim 1, wherein the cover is configured to be detachably attached to the device main body.
An identification code for identifying the type of the apparatus main body is attached to the apparatus main body, and an identification code for identifying the type of the cover is attached to the cover.
3. The configuration according to claim 1, wherein the identification code attached to the cover overlaps with the identification code attached to the apparatus main body in a state where the cover is attached to the apparatus main body. Nozzle housing device.