Conveying device and corresponding PCB appearance detection equipment

Abstract

The utility model provides a conveying device and corresponding PCB appearance detection equipment. The conveying device is used for conveying a PCB and comprises a platform, an upper adsorption assembly and an upper adsorption driver. The platform is divided into a feeding area, a middle area and a discharging area which are sequentially arranged in the transverse direction. The upper adsorption assembly comprises an upper adsorption plate and a plurality of first upper vacuum pumps, the upper adsorption plate is horizontally arranged and slidably arranged above the feeding area and the middle area in the transverse direction, a plurality of upper adsorption holes are formed in the bottom of the upper adsorption plate, the upper adsorption plate comprises a plurality of independent first areas, and the first areas are arranged in the longitudinal direction; and the plurality of first upper vacuum pumps are respectively communicated with the plurality of first areas, so that the upper adsorption holes positioned in the first areas suck the PCB. The upper adsorption driver is connected with the upper adsorption plate and used for driving the upper adsorption plate to be circularly located above the feeding area and the middle area. According to the conveying device and the corresponding PCB appearance detection equipment, electric power is effectively saved, and waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, and in particular to a conveying device and corresponding PCB appearance detection equipment. Background Art

[0002] PCB boards usually need to be inspected by PCB appearance inspection equipment to avoid appearance defects of PCB boards. The PCB appearance inspection equipment includes a conveying device. During the process of conveying the PCB boards, the appearance of the PCB boards can be inspected by a CCD camera. In the prior art, the conveying device has an integral adsorption plate. In order to be suitable for PCB boards of different sizes, the size is usually enlarged. For adsorbing small-sized PCB boards, the vacuum pump is relatively wasted.

[0003] Therefore, it is necessary to provide a conveying device and a corresponding PCB appearance inspection device to solve the above technical problems. Utility Model Content

[0004] The utility model provides a conveying device and corresponding appearance detection, which can effectively save electricity and avoid waste.

[0005] The technical solution of the utility model is:

[0006] A conveying device for conveying PCB boards, comprising:

[0007] The platform is arranged horizontally, and the platform is divided into a feeding area, a middle area and a discharging area which are arranged in sequence in the transverse direction;

[0008] An upper adsorption assembly, comprising an upper adsorption plate and a plurality of first upper vacuum pumps, wherein the upper adsorption plate is horizontally arranged and slidably arranged above the feed area and the middle area in a transverse direction, wherein a plurality of upper adsorption holes are arranged at the bottom of the upper adsorption plate, wherein the upper adsorption plate comprises a plurality of independent first areas, wherein the plurality of first areas are arranged in a longitudinal direction, and wherein the plurality of first upper vacuum pumps are respectively connected to the plurality of first areas, so that the upper adsorption holes located in the first areas adsorb the PCB board; and,

[0009] An upper adsorption driver is connected to the upper adsorption plate and is used to drive the upper adsorption plate to circulate above the feed zone and the middle zone.

[0010] In the conveying device described in the utility model, the upper adsorption plate also includes multiple independent second areas, all of which are located on the side of the first area close to the feeding area, and the multiple second areas are arranged horizontally, and the area of ​​the first area is larger than the area of ​​the second area; the upper adsorption component also includes multiple second upper vacuum pumps, and the multiple second upper vacuum pumps are respectively connected to the multiple second areas, so that the upper adsorption holes located in the second areas absorb the PCB board.

[0011] In the conveying device described in the utility model, the upper adsorption plate includes:

[0012] an upper plate, the first upper vacuum pump and the second upper vacuum pump being connected to the upper plate;

[0013] a lower plate connected to the upper plate, wherein the upper adsorption holes are arranged on the lower plate; and

[0014] A spacer frame is provided with a plurality of spacer bars, and the spacer frame is arranged between the upper plate and the lower plate, and the spacer bars separate the space between the upper plate and the lower plate into a plurality of independent spaces, thereby dividing the upper adsorption plate into a plurality of independent first areas and a plurality of independent second areas.

[0015] In the conveying device described in the utility model, a first hole is provided on the top surface of the first area, and a second hole is provided on the top surface of the second area; the upper adsorption assembly also includes multiple connecting strips, multiple first interfaces and multiple second interfaces; the first interface is provided at the first hole, and the first interface is connected to the first upper vacuum pump; the connecting strip is horizontally arranged on the top surface of the upper adsorption plate, a channel is provided at the bottom of the connecting strip, and a third hole is provided at the top of the connecting strip, the channel connects the second hole and the third hole, the second interface is provided at the third hole, the second interface is connected to the second upper vacuum pump, and multiple first interfaces and multiple second interfaces are arranged in a straight line along the longitudinal direction.

[0016] In the conveying device of the present invention, the diameter of the first interface is greater than the diameter of the second interface.

[0017] In the conveying device described in the utility model, two transverse tracks are arranged on the platform, and the tracks span the feeding area and the middle area. A slider is arranged on the edge of the upper adsorption plate, and the slider is slidably connected to the track.

[0018] In the conveying device described in the utility model, two limit sensors are also arranged on the platform, which are respectively arranged adjacent to the two ends of one of the tracks, and two corresponding sensor plates are arranged on the two ends of the lateral edge of the upper adsorption plate. The limit sensors cooperate with the sensor plates to limit the upper adsorption plate.

[0019] In the conveying device described in the utility model, the conveying device also includes:

[0020] A lower adsorption assembly, comprising a lower adsorption plate and a lower vacuum pump, wherein the lower adsorption plate is horizontally arranged, and a lower adsorption hole is arranged on the top surface thereof, and the lower adsorption plate is slidably arranged above the middle area and the discharge area, and when the upper adsorption plate and the lower adsorption plate are both located in the middle area, the lower adsorption plate is located below the upper adsorption plate, and the lower vacuum pump is connected to the lower adsorption plate, so that the lower adsorption hole adsorbs the PCB board; and,

[0021] A lower adsorption driver is connected to the lower adsorption plate and is used to drive the lower adsorption plate to circulate above the middle zone and the discharge zone.

[0022] In the conveying device described in the utility model, the lower adsorption component and the upper adsorption component are mirror-symmetrical.

[0023] Another technical solution of the utility model is:

[0024] A PCB appearance inspection device comprises the above-mentioned conveying device.

[0025] Compared with the prior art, the utility model has the following beneficial effects: the conveying device of the utility model and the corresponding PCB appearance inspection equipment, when conveying PCB boards of different sizes, can choose to use an appropriate number of first areas, turn on the corresponding first upper vacuum pump, and reasonably use the first upper vacuum pump, effectively saving electricity and avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the utility model.

[0027] Figure 1 A schematic diagram of the top structure of a PCB appearance inspection device provided in a preferred embodiment of the utility model.

[0028] Figure 2 The present invention is a schematic diagram of the overall structure of a PCB appearance inspection device provided in a preferred embodiment of the present invention.

[0029] Figure 3 Another overall structural schematic diagram of the PCB appearance inspection device provided by the preferred embodiment of the utility model.

[0030] Figure 4 Another overall structural schematic diagram of the PCB appearance inspection device provided by the preferred embodiment of the utility model.

[0031] Figure 5 A schematic structural diagram of an upper adsorption assembly provided in a preferred embodiment of the utility model.

[0032] Figure 6 Another structural schematic diagram of the upper adsorption assembly provided in the preferred embodiment of the utility model.

[0033] Figure 7 A schematic structural diagram of an upper adsorption plate provided in a preferred embodiment of the utility model.

[0034] Figure 8 A schematic diagram of the exploded structure of the upper adsorption plate provided in the preferred embodiment of the utility model.

[0035] Fig. 9 Another structural schematic diagram of the upper adsorption assembly provided for the preferred embodiment of the utility model.

[0036] Fig.10 A schematic structural diagram of a connecting strip provided in a preferred embodiment of the utility model.

[0037] in,

[0038] 11. Conveying device,

[0039] 111, platform, 1111, feeding area, 1112, middle area, 1113, discharging area,

[0040] 112. Upper adsorption component,

[0041] 1121, upper adsorption plate, 11211, first area, 11212, second area, 11213, upper plate, 11214, lower plate, 11215, spacing frame, 11216, first hole, 11217, second hole,

[0042] 1122, connecting strip, 11221, third hole, 11222, channel,

[0043] 1123. First interface,

[0044] 1124, the second interface,

[0045] 113. Track,

[0046] 114. Slider,

[0047] 115. Limit sensor,

[0048] 116. Induction sheet,

[0049] 117. Lower adsorption component,

[0050] 12. Feeding device,

[0051] 13. Discharging device,

[0052] 14. Handling device,

[0053] 15.CCD camera.

[0054] In the figures, structurally similar elements are denoted by the same reference numerals. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0056] Directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used for reference to the directions of the drawings. The directional terms used are used to illustrate and understand the present invention, and are not used to limit the present invention.

[0057] The words "first", "second" and the like in the terminology of the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be construed as limiting the order of precedence.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The conveying device in the prior art has an adsorption plate which is a whole piece. In order to be suitable for PCB boards of different sizes, the size of the adsorption plate is usually enlarged. For adsorbing small-sized PCB boards, the vacuum pump is relatively wasted.

[0060] The following is a preferred embodiment of a conveying device and a PCB appearance inspection device provided by the utility model that can solve the above technical problems.

[0061] Please refer to Figure 1-Figure 5The preferred embodiment of the utility model provides a conveying device 11 for conveying PCB boards, which includes a platform 111, an upper adsorption assembly 112 and an upper adsorption driver. The platform 111 is arranged horizontally, and the platform 111 is divided into a feed area 1111, an intermediate area 1112 and a discharge area 1113 arranged in sequence along the horizontal direction. The upper adsorption assembly 112 includes an upper adsorption plate 1121 and a plurality of first upper vacuum pumps. The upper adsorption plate 1121 is arranged horizontally and is slidably arranged above the feed area 1111 and the intermediate area 1112 along the horizontal direction. A plurality of upper adsorption holes are arranged at the bottom of the upper adsorption plate 1121. The upper adsorption plate 1121 includes a plurality of independent first areas 11211, and the plurality of first areas 11211 are arranged longitudinally. The plurality of first upper vacuum pumps are respectively connected to the plurality of first areas 11211, so that the upper adsorption holes located in the first areas 11211 adsorb the PCB board. The upper adsorption driver is connected to the upper adsorption plate 1121, and is used to drive the upper adsorption plate 1121 to circulate above the feeding area 1111 and the middle area 1112. In the figure, the x direction is the horizontal direction, the y direction is the longitudinal direction, and the direction perpendicular to the x and y directions is the vertical direction.

[0062] The conveying device 11 of the utility model can select to use an appropriate number of first areas 11211 when conveying PCB boards of different sizes, and turn on the corresponding first upper vacuum pumps. The first upper vacuum pumps can be used reasonably to effectively save electricity and avoid waste.

[0063] Please refer to Figure 5 , the upper adsorption plate 1121 also includes a plurality of independent second areas 11212, all of which are located on one side of the first area 11211 close to the feed area 1111, and the plurality of second areas 11212 are arranged in the horizontal direction, and the area of ​​the first area 11211 is larger than the area of ​​the second area 11212. The upper adsorption assembly 112 also includes a plurality of second upper vacuum pumps, which are respectively connected to the plurality of second areas 11212, so that the upper adsorption holes located in the second areas 11212 adsorb the PCB board. With the above structure, if the PCB board is large in the horizontal direction, an appropriate number of second areas 11212 can be used, and the corresponding second upper vacuum pumps can be turned on, which effectively saves electricity and avoids waste.

[0064] Please refer to Figure 8, the upper adsorption plate 1121 includes an upper plate 11213, a lower plate 11214 and a spacing frame 11215. The first upper vacuum pump and the second upper vacuum pump are both connected to the upper plate 11213. The lower plate 11214 is connected to the upper plate 11213, and the upper adsorption hole is arranged on the lower plate 11214. The spacing frame 11215 is provided with a plurality of spacing bars, and the spacing frame 11215 is arranged between the upper plate 11213 and the lower plate 11214, and the spacing bars separate the space between the upper plate 11213 and the lower plate 11214 into a plurality of independent spaces, so that the upper adsorption plate 1121 is divided into a plurality of independent first areas 11211 and a plurality of independent second areas 11212. With this structure, it is convenient to assemble the upper plate 11213, the lower plate 11214 and the spacing frame 11215 together to form the upper adsorption plate 1121.

[0065] Please refer to Figure 5-Figure 10 , the top surface of the first area 11211 is provided with a first hole 11216, and the top surface of the second area 11212 is provided with a second hole 11217. The upper adsorption assembly 112 also includes a plurality of connecting strips 1122, a plurality of first interfaces 1123 and a plurality of second interfaces 1124. The first interface 1123 is provided at the first hole 11216, and the first interface 1123 is connected to the first upper vacuum pump. The connecting strip 1122 is arranged horizontally on the top surface of the upper adsorption plate 1121, and a channel 11222 is provided at the bottom of the connecting strip 1122, and a third hole 11221 is provided at the top of the connecting strip 1122, and the channel 11222 connects the second hole 11217 and the third hole 11221, and the second interface 1124 is provided at the third hole 11221, and the second interface 1124 is connected to the second upper vacuum pump. The plurality of first interfaces 1123 and the plurality of second interfaces 1124 are arranged in a straight line along the longitudinal direction. With this structure, the plurality of first interfaces 1123 and the plurality of second interfaces 1124 can be arranged more concentratedly and neatly, which is convenient for connecting the first vacuum pump and the second vacuum pump.

[0066] Please refer to Figure 6 , the diameter of the first interface 1123 is greater than the diameter of the second interface 1124. The area of ​​the first region 11211 is greater than the area of ​​the second region 11212, and the number of upper adsorption holes in the first region 11211 is greater than the number of upper adsorption holes in the second region 11212. With the above structure, the first region 11211 can have a sufficiently large suction force.

[0067] Please refer to Fig.10 , the channel 11222 is a groove opening toward the bottom of the connecting strip 1122. With this structure, as long as the channel 11222 can cover the second hole 11217, the processing accuracy of the channel 11222 can be reduced.

[0068] Please refer to Figure 1 and Figure 5Two transverse rails 113 are arranged on the platform 111, and the rails 113 span the feeding area 1111 and the middle area 1112. A slider 114 is arranged on the edge of the upper adsorption plate 1121, and the slider 114 is slidably connected to the rails 113. With this structure, the upper adsorption plate 1121 can slide stably.

[0069] Please continue to refer to Figure 1 and Figure 5 , two limit sensors 115 are also provided on the platform 111, which are respectively arranged adjacent to the two ends of one of the rails 113, and two corresponding sensing sheets 116 are provided on the two ends of the lateral edge of the upper adsorption plate 1121. The limit sensors 115 cooperate with the sensing sheets 116 to limit the upper adsorption plate 1121. With this structure, it is possible to prevent the upper adsorption plate 1121 from sliding beyond the prescribed stroke in the two lateral directions, resulting in damage to the connection between the upper adsorption plate 1121 and the first upper vacuum pump and the second upper vacuum pump.

[0070] Please refer to Figure 2 , Figure 3 and Figure 4 , the conveying device 11 also includes a lower adsorption component 117 and a lower adsorption driver. The lower adsorption component 117 includes a lower adsorption plate and a lower vacuum pump. The lower adsorption plate is horizontally arranged, and a lower adsorption hole is arranged on its top surface. The lower adsorption plate is slidably arranged above the middle area 1112 and the discharge area 1113. When the upper adsorption plate 1121 and the lower adsorption plate are both located in the middle area 1112, the lower adsorption plate is located below the upper adsorption plate 1121. The lower vacuum pump is connected to the lower adsorption plate so that the lower adsorption hole absorbs the PCB board. The lower adsorption driver is connected to the lower adsorption plate, and is used to drive the lower adsorption plate to circulate above the middle area 1112 and the discharge area 1113. The structure of the lower adsorption component 117 is mirror-symmetrical to that of the upper adsorption component 112, and will not be repeated here. Figure 1 In the figure, the upper adsorption plate 1121 is located above the middle area 1112 . Figure 2 In the figure, the upper adsorption plate 1121 is located above the feeding zone 1111 , and the lower adsorption plate is located above the middle zone 1112 . Figure 3 In the figure, the upper adsorption plate 1121 is located above the feeding area 1111 , and the lower adsorption plate is located above the discharging area 1113 . Figure 4 In the embodiment, the upper adsorption plate 1121 and the lower adsorption plate are both located above the middle area 1112. With this structure, when the PCB board is conveyed through the lower adsorption plate, the PCB board can be directed upward, so that the appearance of the upper surface of the PCB board can be detected.

[0071] The preferred embodiment of the present utility model also provides a PCB appearance inspection device, which includes, in addition to the above-mentioned conveying device 11, a feeding device 12, a discharging device 13, a handling device 14 and two groups of CCD cameras 15. One group of CCD cameras 15 is located between the feeding area 1111 and the middle area 1112, and is used to detect the appearance of the lower surface of the PCB board. The other group of CCD cameras 15 is located between the middle area 1112 and the discharging area 1113, and is used to detect the appearance of the lower and upper surfaces of the PCB board. The feeding device 12 is arranged above the feeding area 1111, and is used to convey the PCB board to a designated position. The discharging device 13 is arranged above the discharging area 1113, and is used to convey the PCB board to the next position. The handling device 14 is arranged above the discharging device 13, and is used to convey the PCB board adsorbed by the lower adsorption component 117 to the discharging device 13.

[0072] The working principle of the PCB appearance inspection device of the preferred embodiment of the utility model is as follows:

[0073] 1. Place the PCB board on the feeding device 12, and the feeding device 12 transports the PCB board to a designated position;

[0074] 2. The upper adsorption plate 1121 moves to the top of the feeding area 1111, turns on the suction force of the corresponding area, sucks up the PCB, and moves it to the top of the middle area 1112. During the movement, a group of CCD cameras 15 located between the feeding area 1111 and the middle area 1112 perform appearance inspection on the lower surface of the PCB;

[0075] 3. The lower adsorption plate moves to the top of the middle area 1112, the upper adsorption plate 1121 turns off the suction, and the corresponding area of ​​the lower adsorption plate turns on the suction, the PCB is transferred to the lower adsorption plate, and then the lower adsorption plate moves toward the discharge area 1113. During the movement, a group of CCD cameras 15 located between the middle area 1112 and the discharge area 1113 perform appearance inspection on the upper surface of the PCB;

[0076] 4. The lower adsorption plate moves to above the discharge area 1113 , and the handling device 14 places the PCB board from the lower adsorption plate to the discharge device 13 .

[0077] This completes the working process of the PCB appearance inspection device of this preferred embodiment.

[0078] The conveying device of the utility model and the corresponding PCB appearance inspection equipment can select and use an appropriate number of first areas when conveying PCB boards of different sizes, and only need to turn on the corresponding first upper vacuum pumps. The first upper vacuum pumps can be used reasonably to effectively save electricity and avoid waste.

[0079] To sum up, although the present invention has been disclosed as above in the form of preferred embodiments, the protection scope of the present invention is not limited thereto, and any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the concept of the technical solution of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A conveying device, characterized in that: Used to convey PCB boards, including: The platform is arranged horizontally, and the platform is divided into a feeding area, a middle area and a discharging area which are arranged in sequence in the transverse direction; An upper adsorption assembly, comprising an upper adsorption plate and a plurality of first upper vacuum pumps, wherein the upper adsorption plate is horizontally arranged and slidably arranged above the feed area and the middle area in a transverse direction, wherein a plurality of upper adsorption holes are arranged at the bottom of the upper adsorption plate, wherein the upper adsorption plate comprises a plurality of independent first areas, wherein the plurality of first areas are arranged in a longitudinal direction, and wherein the plurality of first upper vacuum pumps are respectively connected to the plurality of first areas, so that the upper adsorption holes located in the first areas adsorb the PCB board; and, An upper adsorption driver is connected to the upper adsorption plate and is used to drive the upper adsorption plate to circulate above the feed zone and the middle zone.

2. The conveying device according to claim 1, characterized in that The upper adsorption plate also includes multiple independent second areas, all of which are located on the side of the first area close to the feed area, and the multiple second areas are arranged in the horizontal direction, and the area of ​​the first area is larger than the area of ​​the second area; the upper adsorption assembly also includes multiple second upper vacuum pumps, and the multiple second upper vacuum pumps are respectively connected to the multiple second areas, so that the upper adsorption holes located in the second areas absorb the PCB board.

3. The conveying device according to claim 2, characterized in that: The upper adsorption plate comprises: an upper plate, the first upper vacuum pump and the second upper vacuum pump being connected to the upper plate; a lower plate connected to the upper plate, wherein the upper adsorption holes are arranged on the lower plate; and A spacer frame is provided with a plurality of spacer bars, and the spacer frame is arranged between the upper plate and the lower plate, and the spacer bars separate the space between the upper plate and the lower plate into a plurality of independent spaces, thereby dividing the upper adsorption plate into a plurality of independent first areas and a plurality of independent second areas.

4. The conveying device according to claim 2, characterized in that: A first hole is provided on the top surface of the first area, and a second hole is provided on the top surface of the second area; the upper adsorption assembly also includes multiple connecting strips, multiple first interfaces and multiple second interfaces; the first interface is provided at the first hole, and the first interface is connected to the first upper vacuum pump; the connecting strip is horizontally arranged on the top surface of the upper adsorption plate, a channel is provided at the bottom of the connecting strip, and a third hole is provided at the top of the connecting strip, the channel connects the second hole and the third hole, the second interface is provided at the third hole, the second interface is connected to the second upper vacuum pump, and multiple first interfaces and multiple second interfaces are arranged in a straight line along the longitudinal direction.

5. The conveying device according to claim 4, characterized in that: The diameter of the first interface is greater than the diameter of the second interface.

6. The conveying device according to claim 1, characterized in that: Two transverse tracks are arranged on the platform, and the tracks span the feeding area and the middle area. A slider is arranged at the edge of the upper adsorption plate, and the slider is slidably connected with the track.

7. The conveying device according to claim 6, characterized in that The platform is also provided with two limit sensors, which are respectively arranged adjacent to the two ends of one of the tracks. Two corresponding sensing plates are arranged on the two ends of the lateral edge of the upper adsorption plate. The limit sensors cooperate with the sensing plates to limit the upper adsorption plate.

8. The conveying device according to any one of claims 1 to 7, characterized in that: The conveying device also includes: A lower adsorption assembly, comprising a lower adsorption plate and a lower vacuum pump, wherein the lower adsorption plate is horizontally arranged, and a lower adsorption hole is arranged on the top surface thereof, and the lower adsorption plate is slidably arranged above the middle area and the discharge area, and when the upper adsorption plate and the lower adsorption plate are both located in the middle area, the lower adsorption plate is located below the upper adsorption plate, and the lower vacuum pump is connected to the lower adsorption plate, so that the lower adsorption hole adsorbs the PCB board; and, A lower adsorption driver is connected to the lower adsorption plate and is used to drive the lower adsorption plate to circulate above the middle zone and the discharge zone.

9. The conveying device according to claim 8, characterized in that: The lower adsorption component is mirror-symmetrical to the upper adsorption component.

10. A PCB appearance inspection device, characterized in that: Includes the conveying device described in any one of claims 1-9.

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