CN109936929A - Circuit board feeding apparatus - Google Patents

Abstract

The present invention discloses a kind of circuit board feeding apparatus, includes: material charging region, to place circuit board；X-ray positioning device, comprising: check platform, there is the first opposite side and second side, and be set in the first placement platform；Luminescence unit is set to first side, in forming sensitive volume on the inspection platform；Image shoots with video-corder unit, is set to the second side, to shoot the sensing image in the sensitive volume；And processing and control element (PCE), to receive and analyze the sensing image；First transmission unit is set in the second placement platform opposite with the first placement platform, to transmit the circuit board between the material charging region, the area X-ray positioning device Ji Daisong；Wherein the processing and control element (PCE) connects and controls first transmission unit according to the sensing image, which is adjusted to correct feeding position, and the circuit board is sent to the area to be sent.

Description

Circuit board feeding equipment

technical field

The invention relates to a feeding device, more particularly to a circuit board feeding device comprising an X-ray positioning device.

Background technique

Generally, the printed circuit board can be a multi-layer board composed of six-layer, eight-layer, sixteen-layer, and sixty-four-layer substrates. After the lamination process of the multi-layer printed circuit board is completed, the positioning holes (target holes) on the original substrate will be covered by the surface-coated copper foil, so the positioning holes used for alignment between the internal board layers must be Using, for example, light perspective and integrating image and electronic control technology, these positioning holes are correctly guided, and these positioning holes are used as the benchmark in the subsequent process (such as CNC mechanical drilling, laser drilling and automatic exposure, etc.) , in order to successfully complete all the work.

The existing method for confirming the positioning holes of the printed circuit board is to place the circuit board on the inspection machine table, inspect and adjust the position of the circuit board by manpower, and also send the circuit board to the back-end processing device by manpower. deal with.

However, this method is not only labor-intensive and time-consuming, but also easily affected by the fatigue level of the staff, resulting in an increased chance of errors and increased production costs. Under the trend of requiring automation, such machines and operation methods are obviously out of date.

SUMMARY OF THE INVENTION

One objective of the present invention is to provide a circuit board feeding device that can automatically adjust the circuit board to the correct position and transmit it to a back-end processing device for processing, which can effectively replace manpower to solve the problems of the prior art.

In order to achieve the above-mentioned purpose and other purposes, the present invention proposes a circuit board feeding device, comprising: a feeding area for placing the circuit board; an X-ray positioning device for analyzing the position of the circuit board, and the X-ray positioning device includes: The inspection platform has an opposite first side and a second side, the inspection platform is arranged on the first placing platform; the light-emitting unit is arranged on the first side to form a photosensitive range on the inspection platform; image recording a unit, arranged on the second side, for photographing the sensing image within the photosensitive range; and a processing control unit, used for receiving and analyzing the sensing image; a first transmission unit, arranged opposite to the first placing table on the second placing table for transferring the circuit board between the feeding area, the X-ray positioning device and the waiting area; wherein the processing control unit is connected and controls the first transfer unit according to the sensing image, Adjust the circuit board to the correct feeding position, and transfer the circuit board to the waiting area.

In an embodiment of the present invention, the first transmission unit is a six-axis robot arm.

In an embodiment of the present invention, the circuit board feeding device further includes: a plurality of second conveying units, each of which is used for conveying the circuit boards located in the to-be-sent area to a corresponding back-end processing device.

In an embodiment of the present invention, the first transfer unit is a six-axis robot arm, and each of the second transfer units is a three-axis robot arm.

In an embodiment of the present invention, the feeding area is divided into a plurality of sub feeding areas, and the sub feeding areas are used for placing circuit boards of different types.

In an embodiment of the present invention, the waiting area is divided into a plurality of sub-waiting areas, and the sub-waiting areas are used for placing corresponding circuit boards of different types.

In an embodiment of the present invention, the back-end processing devices include a target drilling machine, an automatic cutting and grinding line, an exposure machine, a laser drilling machine, an automated optical inspection (AOI), an X-ray inspection machine, and a laser. Marking machine, electroplating line positioning machine, Open/Short testing machine.

Therefore, because the circuit board feeding equipment proposed by the present invention can check and adjust the position of the circuit board without manpower, and transmit the circuit board to the back-end processing device in the correct position for processing, it not only saves manpower and time, but also saves time and energy. It can also effectively avoid the problem of increased production costs due to human errors.

Description of drawings

FIG. 1 is a partial top view of a circuit board feeding device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of an X-ray positioning device according to an embodiment of the present invention.

FIGS. 3A to 3D are four situations in which the first conveying unit conveys the circuit board from the feeding area to the inspection device (on the inspection platform) according to an embodiment of the present invention.

4 is a partial top view of a circuit board feeding device according to an embodiment of the present invention.

FIG. 5 to FIG. 11 are the flow of feeding by the circuit board feeding equipment shown in FIG. 4 .

Symbol Description:

100 circuit board feeding equipment

10 feeding area

20 X-ray positioning device

21 Check the platform

21-1 First side

21-2 Second side

22 Sensitivity range

23 Lighting unit

25 Video recording unit

31 The first transfer unit

32, 32' second transfer unit

40 Waiting area

41, 42 Sub-waiting area

71 The first placement table

72 Second stage

90, 91, 92 circuit boards

901 Front

902 back

A1, A2 positioning holes

B foolproof hole

Detailed ways

In order to fully understand the present invention, the present invention is described in detail by the following specific embodiments and the accompanying drawings. Those skilled in the art can understand the objects, features and effects of the present invention from the contents disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. . In addition, the accompanying drawings of the present invention are merely schematic illustrations and are not drawn according to actual size. The following embodiments will further describe the related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the technical scope of the present invention. The description is as follows:

FIG. 1 is a partial top view of a circuit board feeding device 100 according to an embodiment of the present invention. As shown in FIG. 1 , the circuit board feeding device 100 includes a feeding area 10 , an X-ray positioning device 20 and a first conveying unit 31 . The feeding area 10 is, for example, a placing platform for placing the circuit board 90 . For example, the circuit boards 90 can be collected in a stacker (eg, L-RACK), and the stacker is placed in the feeding area 10 . The X-ray positioning device 20 is used for analyzing the position of the circuit board 90 , and the first conveying unit 31 is used for conveying the circuit board 90 between the feeding area 10 , the X-ray positioning device 20 and the waiting area 40 . In the embodiment of the present invention, the X-ray positioning device 20 is connected to the first conveying unit 31, and the first conveying unit 31 can adjust the circuit board 90 to the correct feeding position according to the analysis result of the X-ray positioning device 20, The circuit board 90 is transported and placed in the waiting area 40 .

It should be noted that the to-be-feeding area 40 can be, for example, similar to the feeding area 10, and is a platform for placing the circuit board 90 adjusted to the correct feeding position; or, the to-be-feeding area 40 can be, for example, a rear end A part of the processing device 50 (see FIG. 4 ), that is, after the first conveying unit 31 adjusts the circuit board 90 to the correct feeding position according to the analysis result of the X-ray positioning device 20 , the circuit board can be directly 90 is sent to the back-end processing device 50 for processing.

FIG. 2 is a schematic diagram of an X-ray positioning device 20 according to an embodiment of the present invention. In this embodiment, the X-ray positioning device 20 may include an inspection platform 21 , a light-emitting unit 23 , an image recording unit 25 and a processing control unit (not shown). As shown in FIG. 1 and FIG. 2 , the inspection platform 21 is disposed on the first placing table 71 , and the inspection platform 21 has opposite first sides 21 - 1 and second sides 21 - 2 , and the light emitting unit 23 is disposed On the first side 21 - 1 , the image recording unit 25 is disposed on the second side 21 - 2 , that is, the light emitting unit 23 and the image recording unit 25 are respectively disposed on opposite sides of the inspection platform 21 . In the embodiment shown in FIG. 2 , the light-emitting unit 23 is located above the inspection platform 21 , and the image recording unit 25 is located below the inspection platform 21 , but the present invention is not limited thereto. In other embodiments, the positions of the light-emitting unit 23 and the image recording unit 25 can also be interchanged.

In this embodiment, the light-emitting unit 23 is an X-ray light source, and is used to form a photosensitive area 22 (or called a field of view (FOV)) on the inspection platform 21 , and the photosensitive area 22 can be, for example, A4 size. (about 31cm x 25cm), but the present invention is not limited to this. In the embodiment of the present invention, the photosensitive range 22 can be adjusted according to actual needs, and is not limited to the above-mentioned size. The image recording unit 25 is, for example, a CCD lens, and is used for capturing a sensing image within the photosensitive range 22 . For example, when the circuit board is conveyed by the first conveying unit 31 to the inspection platform 21 of the X-ray positioning device 20, and the X-ray light source is emitted by the light-emitting unit 23, the image recording unit 25 can photograph the circuit The sensing image formed by the plate in the photosensitive range 22 . In addition, the processing control unit is used for receiving and analyzing the sensing image.

As shown in FIG. 1 , in this embodiment, the first conveying unit 31 is disposed on a second placing table 72 , the second placing table 72 is opposite to the first placing table 71 , and the first placing table 72 is opposite to the first placing table 71 . The transfer unit 31 is, for example, a six-axis robot arm. The first conveying unit 31 can hold the circuit board 90 by suction, and can rotate or turn over the circuit board 90 to adjust the circuit board 90 to a correct feeding position. The processing control unit of the X-ray positioning device 20 is connected to the first conveying unit 31 , and the processing control unit controls the first conveying unit 31 to adjust the circuit board 90 according to the sensing image, so as to adjust the circuit board 90 to feed correctly position, and control the first conveying unit 31 to convey and place the circuit board in the waiting area 40 . For example, the first transfer unit 31 can directly transfer the circuit board to the waiting area 40 , adjust the position of the circuit board 90 or turn the circuit board 90 over.

3A to 3D show four situations in which the first conveying unit 31 conveys a circuit board 90 from the feeding area 10 to the X-ray positioning device 20 (on the inspection platform 21 ) in an embodiment of the present invention. In this embodiment, the back-end processing device 50 is, for example, a target drilling machine, and (the processing control unit of the X-ray positioning device 20 ) can control the first transmission unit 31 to control the X-ray positioning device 20 according to the four situations shown in FIGS. 3A to 3D . The circuit board 90 performs different actions to ensure that when the circuit board 90 is subsequently transferred to the back-end processing device 50 , the material is fed at the correct position.

In this embodiment, the circuit board 90 may include two positioning holes A1 and A2 and a foolproof hole B. As shown in FIG. 3A to FIG. 3D , the positioning holes A1 and A2 and the foolproof hole B are connected together. Right triangle. The X-ray positioning device 20 can check the positions of the positioning holes A1 and A2 first, and then check the positions of the positioning holes A1 and the foolproof holes B; or, can check the positions of the positioning holes A1 and the foolproof holes B first. position, and then check the positions of the positioning holes A1 and A2 to properly adjust the position of the circuit board 90 . A detailed description will be given below.

The front side 901 of the circuit board 90 shown in FIG. 3A faces upward, and the positioning holes A1 , A2 and the foolproof hole B are positioned to transfer the circuit board 90 to the back-end processing device 50 (eg, a drilling target). machine) in the correct location for direct processing. That is, when the first conveying unit 31 conveys the circuit board 90 from the feeding area 10 to the inspection platform 21 of the X-ray positioning device 20, the light-emitting unit 23 emits light (X-ray), and the image captures When the sensing image formed by the circuit board 90 in the photosensitive range 22 captured by the recording unit 25 is shown in FIG. 3A , the processing control unit controls the first transmission unit 31 to directly transmit the circuit board 90 to the to-be-transmitted District 40.

In some embodiments, the processing control unit can control the first transmission unit 31 to rotate the circuit board 90 according to the sensing image.

The front side 901 of the circuit board 90 shown in FIG. 3B faces upward, and the positions of the positioning holes A1, A2 and the foolproof hole B are related to the transmission of the circuit board 90 to the back-end processing device 50 (eg, a target drilling machine). ) is 180 degrees apart from the correct position for processing. Therefore, when the image recording unit 25 captures the sensing image formed by the circuit board 90 in the photosensitive range 22 as shown in FIG. 3B , the processing control unit controls the first transmission unit 31 to the circuit board 90 After rotating by 180 degrees, it is transferred to the waiting area 40 .

In other embodiments, the processing control unit may control the first transmission unit 31 to turn over the circuit board 90 according to the sensing image.

The circuit board 90 shown in FIG. 3C has its back 902 facing upward. Since the X-ray positioning device 20 checks the positions of the positioning holes A1 and A2 and the positions of the positioning holes A1 and the foolproof hole B, the processing control unit is It can be determined that no matter how the circuit board 90 is rotated, it cannot be adjusted to the correct feeding position. Therefore, when the image recording unit 25 captures the sensing image formed by the circuit board 90 in the photosensitive range 22 as shown in FIG. 3C , the processing control unit controls the first transmission unit 31 to the circuit board 90 . Turn it upside down, and then transfer it to the waiting area 40 .

The circuit board 90 shown in FIG. 3D also has the back surface 902 facing upward, but the positions of the positioning holes A1 , A2 and the foolproof hole B are different from the positions shown in FIG. 3C by 180 degrees. Likewise, since the X-ray positioning device 20 checks the positions of the positioning holes A1 and A2 and the positions of the positioning holes A1 and the foolproof hole B, the processing and control unit can determine that no matter how the circuit board 90 is rotated, the circuit board 90 cannot be rotated. Adjust to the correct feeding position. Therefore, when the image recording unit 25 captures the sensing image formed by the circuit board 90 in the photosensitive range 22 as shown in FIG. 3D , the processing control unit controls the first transmission unit 31 to the circuit board 90 . Turn the circuit board 90 over to the front, and then rotate the circuit board 90 by 180 degrees before transferring it to the waiting area 40 .

It should be noted that, although the foregoing embodiments are described by taking the back-end processing device 50 as a target drilling machine, the present invention is not limited to this. Any back-end processing device 50 that needs to adjust the circuit board 90 to the correct feeding position can adjust the circuit board 90 in the front-end operation through the X-ray positioning device 20 and the first conveying unit 31 of the present invention. To the correct feeding position, I won't go into details here.

FIG. 4 is a partial top view of a circuit board feeding device 100 according to an embodiment of the present invention. As shown in FIG. 4 , the circuit board feeding device 100 further includes a plurality of second conveying units 32 and 32 ′. In this embodiment, each of the second conveying units 32 and 32 ′ is used for placing the second conveying units 32 and 32 ′ in the waiting area 40 . The circuit board 90 is sent to the corresponding back-end processing device 50, 50'.

For example, each of the second transfer units 32 , 32 ′ is a three-axis robot arm, since the first transfer unit 31 (six-axis robot arm) has adjusted the circuit board 90 according to the analysis result of the X-ray positioning device 20 Therefore, each second conveying unit 32 (, 32 ′) only needs to transfer the circuit board 90 located in the waiting area 40 to the corresponding back-end processing device 50 (, 50'), the circuit board 90 can be subsequently processed.

In this embodiment, the circuit boards 90 located in the waiting area 40 are transferred to the corresponding back-end processing devices 50 (, 50') through each of the second transfer units 32 (, 32'), rather than through the second transfer unit 32 (, 32'). A transfer unit 31 directly transfers the circuit board 90 that has been adjusted to the correct position to the back-end processing device 50 (, 50 ′), which is to make the various devices in the circuit board feeding device 100 divide the work to achieve more efficiency processing.

For example, under such a division of labor, since the first transfer unit 31 only needs to adjust the circuit board 90 to the correct feeding position, the circuit board 90 is transferred to the corresponding back-end processing device 50 . The work is processed by the second conveying unit 32. After the first conveying unit 31 sends the circuit board 90 that has been adjusted to the correct feeding position to the waiting area 40, it can continue to convey (and adjust) another A piece of circuit board 91, at the same time, the circuit board 90 in the waiting area 40 is also synchronously sent by the second conveying unit 32 to the corresponding back-end processing device 50, and the back-end processing device 50 can start the subsequent processing deal with.

When the back-end processing device 50 is performing subsequent processing, the first conveying unit 31 can adjust the other circuit board 91 to the correct feeding position and send it to the waiting area 40 , and then the second conveying unit 31 The unit 32' sends the circuit board 91 located in the waiting area 40 to the corresponding back-end processing device 50'. There will be more detailed instructions at the back.

In one embodiment, the feeding area 10 is divided into a plurality of sub-feeding areas, and the sub-feeding areas are used for placing circuit boards of different types. Similarly, the waiting area 40 can also be divided into a plurality of sub-waiting areas, and the sub-waiting areas are used for placing corresponding circuit boards of different types. For example, the aforementioned circuit boards 90 , 91 can be different types of circuit boards, and the corresponding back-end processing devices 50 , 50 ′ can also be different processing machines, respectively performing different subsequent processing on the circuit boards 90 , 91 . . It should be noted that the number of the sub-feeding areas, the sub-waiting areas and the corresponding back-end processing devices can be adjusted according to the type (quantity) of the circuit boards 90 and 91, that is, in this embodiment, The circuit board feeding device 100 can process a plurality of circuit boards of different types at the same time, which can save manpower and time more effectively.

In the embodiment of the present invention, the back-end processing devices 50, 50' may include, for example, a target drilling machine, an automatic cutting and grinding line, an exposure machine, a laser drilling machine, an automated optical inspection (Automated Optical Inspection, AOI), X Optical inspection machine, laser marking machine, electroplating line positioning machine, Open/Short testing machine, etc. Before entering the back-end processing devices 50 and 50', the circuit board 90 needs to be positioned and adjusted to a correct position before being put into the back-end processing devices 50 and 50' for subsequent processing. That is, the circuit board feeding device 100 of the present invention can be applied to the front ends of the aforementioned various back-end processing devices 50, 50' to ensure that the circuit board 90 is placed in the back-end processing devices 50, 50' in the correct position.

FIG. 5 to FIG. 11 are the flow of feeding by the circuit board feeding device 100 shown in FIG. 4 . First, as shown in FIG. 5 , the first conveying unit 31 conveys a circuit board 90 from the feeding area 10 to the X-ray positioning device 20 , and the X-ray positioning device 20 analyzes the circuit board 90 (see FIG. 2 , 3), and according to the analysis result of the X-ray positioning device 20, the first conveying unit 31 adjusts the circuit board 90 to the correct feeding position.

Next, as shown in FIG. 6 , the first conveying unit 31 sends the circuit board 90 adjusted to the correct feeding position to the waiting area 40 , corresponding to the sub-waiting area 41 of the back end processing device 50 . As shown in FIG. 7 , the second transfer unit 32 takes over the circuit board 90 and prepares to transport it to the back-end processing device 50 for processing.

Next, as shown in FIG. 8 , the second conveying unit 32 conveys the circuit board 90 to the back-end processing device 50 for processing. During the processing of the circuit board 90 by the back-end processing device 50 , the first conveying unit 31 synchronously conveys the circuit board 91 from the feeding area 10 to the X-ray positioning device 20 , and the X-ray positioning device 20 transmits the circuit board 91 synchronously. The circuit board 91 is analyzed, and according to the analysis result of the X-ray positioning device 20 , the circuit board 91 is adjusted to the correct feeding position by the first conveying unit 31 .

Next, as shown in FIG. 9 , the first conveying unit 31 sends the circuit board 91 adjusted to the correct feeding position to the waiting area 40, which corresponds to the sub-waiting area 42 of the rear end processing device 50'. As shown in FIG. 10 , the second transfer unit 32' takes over the circuit board 91 and prepares to transport it to the back-end processing device 50' for processing.

As shown in FIG. 11 , during the processing of the circuit board 91 by the back-end processing device 50 ′, the first transfer unit 31 synchronously prepares to transfer the circuit board 92 from the feeding area 10 to the X-ray positioning device 20 . , the subsequent steps will continue as above.

It should be noted that, in the embodiments shown in FIGS. 5 to 11 , the circuit boards 90 , 91 , and 92 can be of the same type. Therefore, the circuit boards 90 , 91 , and 92 can be stored in the The same position in the feeding area 10, and the back-end processing devices 50, 50' can perform the same processing process.

However, in other embodiments, the circuit boards 90 , 91 , and 92 can also be different types of circuit boards. Therefore, the circuit boards 90 , 91 , and 92 can be stored in different sub-feeding areas of the feeding area 10 . , and the back-end processing devices 50 and 50 ′ can perform different processing procedures.

Based on the above description, due to the circuit board feeding device 100 proposed by the present invention, the position of the circuit board can be checked and adjusted without manpower, so that the circuit board can be sent to the back-end processing device in the correct position for processing, which not only saves manpower It can also effectively avoid the problem of increased production costs due to human errors. And in some embodiments, the second conveying unit and the first conveying unit can be used for division of labor, so that different circuit boards can be processed simultaneously in the circuit board feeding equipment, and different subsequent processes can also be performed at the same time. Make the whole process more efficient.

The present invention has been described above with embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that, all the equivalent changes and substitutions of this embodiment should be considered to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims (7)

1. a kind of circuit board feeding apparatus, characterized by comprising:

Material charging region, to place circuit board；

X-ray positioning device, to analyze the position of the circuit board, which includes:

It checks platform, there is the first opposite side and second side, which is set in the first placement platform；

Luminescence unit is set to first side, in forming sensitive volume on the inspection platform；

Image shoots with video-corder unit, is set to the second side, to shoot the sensing image in the sensitive volume；And

Processing and control element (PCE), to receive and analyze the sensing image；

First transmission unit is set in the second placement platform opposite with the first placement platform, to transmit the circuit board in the throwing Expect between area, the area X-ray positioning device Ji Daisong；

Wherein the processing and control element (PCE) connects and controls first transmission unit according to the sensing image, which is adjusted to Correct feeding position, and the circuit board is sent to the area to be sent.

2. circuit board feeding apparatus as described in claim 1, which is characterized in that first transmission unit is six axis robot Arm.

3. circuit board feeding apparatus as described in claim 1, which is characterized in that also include:

Multiple second transmission units, respectively second transmission unit to will be located at this wait send the circuit board in area be sent to it is corresponding after Hold processing unit.

4. circuit board feeding apparatus as claimed in claim 3, which is characterized in that first transmission unit is six axis robot Arm, and respectively second transmission unit is three axle robert arm.

5. circuit board feeding apparatus as claimed in claim 3, which is characterized in that the material charging region is divided into multiple sons and feeds intake Area, circuit board of the sub- material charging region such as this to place different model.

6. circuit board feeding apparatus as claimed in claim 5, which is characterized in that be somebody's turn to do area to be sent and be divided into multiple sons wait send Area, circuit board of the area Deng Zidaisong to place corresponding different model.

7. circuit board feeding apparatus as claimed in claim 3, which is characterized in that the back-end processings device such as this include bore target drone, Automatic cutting grind line, exposure machine, laser drilling machine, automatic visual inspection, X-ray check machine, laser marking machine, plating line localization machine, Open/Short test machine.