KR101488160B1 - Vision inspection apparatus comprising cooling part for pcb substrate - Google Patents

Abstract

A vision inspection apparatus including a cooling unit of a PCB substrate according to the present invention includes a pair of first and second inlet portions for transferring a PCB substrate to a cooling region and a pair of cooling and cooling means for cooling the PCB to be transferred from the inlet portion And an inspection unit for inspecting a PCB to be inspected transferred from the cooling unit, and a controller for controlling the inspection unit to transfer and take out the PCB to be inspected by the inspection unit at a position opposite to the first and second lead- And includes first and second discharge portions.
According to the present invention, the high-temperature PCB can be cooled to room temperature before being transferred to the inspection unit.
Further, the PCB of the PCB determined to be defective at the time of inspecting the PCB of the PCB can be distinguished and informed to the outside.

Description

TECHNICAL FIELD [0001] The present invention relates to a vision inspecting apparatus including a cooling unit of a PCB substrate,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PCB inspecting apparatus, and more particularly, to a PCB inspecting apparatus capable of inspecting PCB inspections stably and efficiently.

In general, Surface Mounting Technology (SMT) for assembling surface mount components to a printed circuit board (PCB substrate) is a technology for miniaturizing / integrating Surface Mounting Device (SMD) Including the development of precision assembly equipment to precisely assemble components and the operation of various assembly equipment.

Surface mount lines consist of equipment such as surface mount and vision inspection devices. The surface mount device is a device for mounting a surface mount component on a PCB, and various surface mount components supplied in the form of tape, stick, and tray are supplied from a component feeder and placed on a mounting position on a PCB .

The vision inspection apparatus inspects the mounting state of the surface-mounted components before or after the soldering process of the surface-mounted components is completed, and transfers the PCB to the next process according to the inspection result.

A conventional vision inspection apparatus includes a lighting unit irradiated with light using a lamp or the like, and a camera unit installed at an upper portion of the lighting unit to photograph image information of various components mounted on the inspection object.

A conventional vision inspection method is a method of inspecting a surface of a printed circuit board by irradiating a printed circuit board with light after each object is horizontally conveyed through a conveyor, The part is photographed.

Then, the image information is outputted to the monitor and operated to inspect the quantity / defect of the surface mount component to be inspected, or to check whether the surface mount component is mounted or not.

As another vision inspection method, a three-dimensional height is measured by irradiating light onto a PCB of an object to be inspected through a grating and analyzing a shadow shape formed by the irradiated light on the surface of the object to be inspected.

Thereafter, the photographed portion is calculated and compared with the reference value to check the quality / defect of the component mounting associated with the height, or to check whether the surface mounted component is mounted.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vision inspection system including a cooling unit of a PCB substrate configured to cool a room temperature PCB before being transferred to an inspection unit.

It is still another object of the present invention to provide a vision inspection apparatus including a cooling unit of a PCB for a PCB, which is configured to distinguish a PCB for PCB which is determined to be defective when inspecting a PCB for PCB, and to inform the outside.

According to an aspect of the present invention, there is provided an apparatus for inspecting vision, including a cooling unit for a PCB of a PCB, including a pair of first and second lead portions for conveying the PCB to a cooling region, An inspecting unit for inspecting a PCB to be inspected transferred from the cooling unit; a sensor unit for inspecting a PCB to be inspected by the inspecting unit at a position opposite to the first and second inserting units with respect to the inspecting unit; And a first and a second discharge unit for transferring and discharging the discharge gas.

Here, the inspection unit may include a pair of inspection regions for receiving the PCBs from the pair of cooling units.

Preferably, the pair of cooling units are configured to load the plurality of PCBs in the height direction perpendicular to the feeding direction of the PCB by the first and second lead-in units.

Here, the pair of cooling units may include a plurality of cooling fans for cooling the PCB.

Preferably, a plurality of cooling fans included in the cooling unit blows air to the PCB, and the blowing direction of the cooling fan is configured to blow air from the PCB to the outside.

The first and second discharge units may be configured to load a plurality of PCBs in a height direction perpendicular to a conveying direction of the PCB by the conveyance of the pair of inspection areas.

Here, the first and second discharge units may be configured to be driven up and down in a height direction.

In addition, the first and second discharge units may include a plurality of variable control units configured to be adjusted according to the size of the PCB to be delivered.

Preferably, the variable regulator is configured to be elevated in a vertical direction.

Preferably, the first and second inlet portions each include a pair of conveyor belts, and the width between the pair of conveyor belts is adjustable.

In addition, the first and second discharge portions each include a pair of conveyor belts, and the width between the pair of conveyor belts can be configured to be adjustable.

According to the present invention, the high-temperature PCB can be cooled to room temperature before being transferred to the inspection unit.

Further, the PCB of the PCB determined to be defective at the time of inspecting the PCB of the PCB can be distinguished and informed to the outside.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
1 is an external perspective view of a vision inspection apparatus including a cooling unit of a PCB of the present invention,
2 is an internal configuration diagram of the vision inspection apparatus.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, the terms used in the specification and claims should not be construed in a dictionary sense, and the inventor may, on the principle that the concept of a term can be properly defined in order to explain its invention in the best way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments shown in the present specification and the drawings are only exemplary embodiments of the present invention, and not all of the technical ideas of the present invention are presented. Therefore, various equivalents It should be understood that water and variations may exist.

FIG. 1 is an external perspective view of a vision inspection apparatus including a cooling unit of a PCB of the present invention, and FIG. 2 is an internal structural view of the vision inspection apparatus.

1 and 2, the vision inspection apparatus including the cooling unit of the PCB of the present invention includes a pair of first and second lead-in portions 10 and 12 for transferring the PCB to the cooling region, A pair of cooling units 20 and 30 for cooling the PCB of the PCB transferred from the units 10 and 12; an inspection unit 40 for inspecting PCBs transferred from the cooling unit; Includes first and second discharge portions (50, 60) for transferring and receiving the PCB of the inspection completed by the inspection portion (40) at positions opposed to the first and second inlet portions (10, 12) .

The inlet units 10 and 12 are arranged in front of the cooling units 20 and 30, respectively, including a pair of conveyor belts, for receiving a PCB substrate from a previous process.

The inlet portions 10 and 12 include sliding shafts 15 and 17 and driving portions 14 and 16 so that the width between the pair of conveyor belts is adjusted.

Thus, by adjusting the width between the conveyor belts in accordance with the width of the PCB to be inspected, the vision inspection apparatus according to the present invention can be installed corresponding to various types of PCB substrates and equipment.

The pair of cooling units 20 and 30 are configured to be able to receive the PCBs from the inlet units 10 and 12 and to load them along the height direction.

That is, the cooling units 20 and 30 are driven in the height direction perpendicular to the feeding direction of the PCB by the first and second lead-in units 10 and 12 so that five PCBs, for example, As shown in FIG.

A plurality of cooling fans (25, 27) for cooling the PCB of the PCB are provided in front of the pair of cooling units (20, 30).

In general, in the case of a PCB substrate that has undergone a reflow process such as an automatic soldering process, the temperature of the solder is maintained at a high temperature for a certain period of time even after the end of the process. When the solder is put into the vision inspection apparatus, This may cause defects in the substrate and failure of the vision inspection apparatus.

Therefore, it is preferable to cool the glass substrate to room temperature before inputting the glass substrate into the inside of the vision inspection apparatus.

On the other hand, air is blown toward the PCB to be mounted on the cooling units (20, 30) through the two cooling fans (25) in the middle of the cooling fans (25, 27) By allowing air to be discharged from the PCB to the outside through the cooling fan 27, air can be circulated between the PCBs mounted on the cooling units 20 and 30 to cool the PCB to room temperature .

The inspecting unit 40 includes a pair of lateral movement guides 42 and 43 so that the inspection head 42 including the camera, the lens, and various illumination means can be moved in the X and Y directions so as to perform the vision inspection on the PCB of the PCB, Is movably disposed on a longitudinally moving guide member (46) movably disposed on the members (44, 45).

The inspecting unit 40 includes a pair of inspecting areas for receiving the PCBs from the pair of cooling units 20 and 30 and the inspecting area conveying unit 43 transports the PCBs And a pair of conveyor belts for the inspection unit 40 are disposed.

Therefore, the inspection head 42 is moved in the X and Y directions to perform the inspection on the two PCBs that are transferred to the transfer unit 43 by the pair of inspection areas.

The first and second discharge units 50 and 60 are arranged at positions opposed to the first and second inlet units 10 and 12 with respect to the inspection unit 40 so that inspection by the inspection unit 40 The completed PCB is transferred and discharged.

The first and second discharge units 50 and 60 include a pair of conveyor belts 52 and 62 and a driving motor such that the interval between the conveyor belts 52 and 62 is adjustable, 40).

Here, the first and second discharge units 50 and 60 are also configured such that the inspection area is vertically driven in the height direction perpendicular to the transport direction of the PCB by the transfer unit 43. For example, Conveyor belts (52, 53, 62, 63) are installed on the upper and lower sides, respectively, so that the PCB can be stacked.

When a defective PCB is detected from the PCB to be inspected by the inspection unit 40, the defective PCB is notified through the warning lamp 70 and is discharged through the first and second discharge units 50 and 60 .

That is, when the inspection unit 40 detects the defective PCB of the PCB, the first and second discharge units 50 and 60 are driven to descend, and the defective PCBs 53 and 63 are transferred to the upper conveyor belts 53 and 63, The substrate is conveyed and informed through the warning light 70, and is driven to rise again, whereby the defective PCB can be taken out to the outside.

Meanwhile, the first and second discharge units 50 and 60 are provided with movable control units 54 and 64 that can be selectively driven to the size of the PCB to be transferred.

Thus, it can be flexibly coped with the size according to the type of the PCB to be inspected.

That is, the movable control portions 54 and 64 are not lifted up or down to serve as stoppers, so that each of the first and second discharge portions 50 and 60 is provided with a single PCB You can load or load two PCBs.

While the present invention has been described with reference to the exemplary embodiments and the drawings, it is to be understood that the technical scope of the present invention is not limited to these embodiments and that various changes and modifications will be apparent to those skilled in the art. Various modifications and variations may be made without departing from the scope of the appended claims.

10: first inlet portion 12: second inlet portion
20, 30: Cooling section 40: Inspection section
50: first discharge portion 60: second discharge portion

Claims (11)

A pair of first and second inlet portions for transferring the PCB to the cooling region;
A pair of cooling units for cooling the PCB to be transferred from the inlet unit;
An inspection unit for inspecting a PCB to be transferred from the cooling unit;
And a first and a second discharge unit for transferring and receiving the PCB of the inspection completed by the inspection unit at a position opposite to the first and second inlet units with respect to the inspection unit,
Wherein the pair of cooling units are configured to load the plurality of PCBs in the height direction of the cooling unit perpendicular to the conveying direction of the PCB by the first and second inlet units,
Wherein the pair of cooling portions include a plurality of cooling fans for cooling the PCB of the PCB,
Wherein the first and second discharge units are configured to load a plurality of PCBs in a height direction of the discharge unit, the pair of inspection areas being perpendicular to a conveying direction of the PCB by the conveying unit,
Wherein the pair of cooling portions and the first and second discharge portions are configured to be driven up and down in the height direction,
Wherein the cooling fan is configured to blow air toward the plurality of PCBs in front of a plurality of PCBs mounted in a height direction in the cooling unit,
Wherein a plurality of cooling fans included in the cooling unit are blown toward the PCB substrate and a blowing direction of the cooling fan is configured to blow air from the PCB to the outside,
Wherein the first and second discharge units include a plurality of variable control units configured to be adjusted according to a size of a PCB to be delivered,
The variable control unit is configured to selectively move up and down according to the size of the PCB to be delivered,
Wherein the first and second inlet portions each include a pair of conveyor belts, the widths of the pair of conveyor belts being adjustable,
Wherein the first and second discharge portions each include a pair of conveyor belts, and the width between the pair of conveyor belts is adjustable. The method according to claim 1,
Wherein the inspection unit includes a pair of inspecting regions for receiving the PCBs from the pair of cooling units. delete delete delete delete delete delete delete delete delete

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