KR100740232B1 - Defective single unit replacement device for PCC panel - Google Patents

Abstract

An apparatus for exchanging defective parts in a PCB(Printed Circuit Board) panel is provided to accurately correct a location by preventing the movement of the PCB panel installed on a PCB installing plate. In an apparatus for exchanging defective parts in a PCB panel, a body unit(100) is composed of a lower frame(110), a vertical frame(120), and a lower base(130). A linear driving unit(200) is located on the lower base(130), and drives right and left, front and back, and up and down. A suction port(300) is provided at an upper end of the linear driving unit(200), and vacuum-sucks PCB parts to be located in a location from which the defective PCB parts of the PCB panel are removed. A PCB panel installing plate(400) is fixedly installed at an upper part of the linear driving unit(200), and the PCB panel to remove the defective PCB parts is installed thereon. A PCB fixing member(500) presses a predetermined upper part of the PCB panel to fixedly install the PCB panel. A pair of vision cameras(701,702) are individually driven to read locations of specific points of the PCB panel installing plate(400), the PCB panel, and the PCB parts. A camera transferring linear driving unit(600) drives right and left, and front and back with respect to the PCB panel installing plate(400). The control unit controls the linear driving unit(200) and the camera transferring linear driving unit(600) by outputting location control data based on the read result of the vision cameras(701,702).

Description

Defective Single Unit Replacement Device of PCC Panel

1 is a view schematically showing a conventional PCB panel defective unit replacement method.

2 is a view schematically showing the shape of a PCB panel composed of several conventional single PCB components.

Figure 3 is a perspective view schematically showing the structure of the defective unit replacement device of the PCB panel according to the present invention.

4 is a view schematically showing a structure in which a loader, an unloader magazine and a loading and unloading unit are included in an apparatus for replacing a defective unit of a PCB panel according to the present invention.

5 is a perspective view schematically showing the structure of a PCB panel seating plate and a PCB fixing member according to the present invention.

6 is a view schematically illustrating a state in which the vision camera according to the present invention reads the positions of the PCB panel seating plate and the PCB panel.

<Description of Signs of Major Parts of Drawings>

10: PCB panel 12: PCB unit

100: main body 110: lower frame

120: vertical frame 130: lower base

132: vibration absorbing device 200: linear drive unit

210: X-Y axis drive unit 220: height adjustment unit

230: rotating stage 300: suction port

400: PCB panel mounting plate 410: main workbench

420: PCB seating jig 500: PCB fixing member

510: LM guide 520: crimping portion

600: linear camera driving unit 701,702: vision camera

810: loader magazine 820: loading unit

830: Unloader Magazine 840: Unloading Unit

F, f: Physical mark H: Base hole

The present invention relates to an apparatus for replacing defective components of a PCB panel, and more particularly, when a defect occurs in any one of a plurality of identical PCB components included in a PCB (Printed Circuit Board) panel, the PCB panel is replaced with a good PCB component. PCB to work by driving the linear driver for moving the PCB parts of the good and the camera driver linear driver for moving the vision camera to detect the position of each of the PCB panels and PCB parts while the PCB panel seat is fixed. Minimize panel shake and use two vision cameras to drive the vision cameras to identify the position of the PCB panel and PCB components, and to read the specific point located at each position, calculate the position of high accuracy, The good quality PCB stage for replacement automatically in the linear drive unit based on the position data and the current position data To align the PCB to the panel, to a more individually defective replacement of PCB panel to align to quickly and accurately correct the position device.

Printed Circuit Boards (PCBs) may be produced separately, but recently, in order to improve productivity and yield in the component mounting process by an automated device, several single PCBs having the same pattern are mounted on a single board. PCBs which are configured to be printed and separated after mounting parts have been widely used.

This consists of several PCBs on a single board, called an arrayed PCB panel, or simply a PCB panel. Depending on the number of PCBs arranged, two-array PCB panel, three-array PCB panel, 4 It is called an array PCB panel.

Such PCB panels are arranged on the PCB panel before component mounting, and each unit PCB is inspected for defects. If any of the array PCBs are judged to be defective, a defective PCB (X-out PCB) or a defective board is used. It is called (X-out boad), and in the past, the entire PCB panel that was judged to be defective was discarded and discarded, but recently, by replacing only the defective unit in the defective PCB panel with a good unit, the PCB panel is mass-produced, that is, recycled and used. In other words, it is called X-out replacing process to replace defective PCB parts.

The process of replacing defective PCB parts of PCB panel is as follows.

First, through the inspection of the electricity supply circuit and visual inspection with 5X ~ 10X magnifier, through the defect inspection process that screens out the electricity supply defect, the scratch of the surface or the dislocation of the pattern. , Defective PCB parts in PCB panel will be marked with "X".

Subsequently, a process of cutting the defective PCB component is followed. The cutting process includes a cutting position, a cutting shape, a cutting length, and the like, which are designed in consideration of the shape and thickness of the PCB component and the joint strength of the good PCB component to be joined. It is performed by a Routing Machine.

Next, the PCB parts of the good parts are accurately aligned to the original pattern in the vacant places where the cut defective PCB parts are removed. The good PCB parts used here are the remaining PCB panels except the defective ones. A good PCB part can be cut off or a spare part can be used.

Subsequently, the adhesive is injected after attaching a tape to prevent the leakage of the adhesive to the part where the PCB panel and the replaced PCB component are connected, that is, the part cut by the cutter. Epoxy is mainly used as a binder, and the programmed dose is injected using an epoxy metering dispenser.

Epoxy-injected PCB panels are put into a hot air dryer. After curing of epoxy, the PCB panels drawn out from the hot air dryer are checked for twisting or warping at room temperature, and then replaced by a 3D measuring device. Check whether it is located correctly, visual inspection by magnifier, and whether the surface of PCB panel is damaged or process is wound, and whether epoxy is buried on the part other than the part to be injected.

In case of mounting the parts by using the automation device on the regenerated single PCB panel as described above, in order for the operation to be performed smoothly without errors, each component insertion hole on the suitable single PCB is manufactured according to the circuit design or Gerber data. It must be precisely placed and bonded at the relative position of the phase, and in order to do this, the PCB components to be replaced must be aligned to the exact position of the PCB panel and then carried out to the bonding process. The process of aligning the good PCB parts to the exact position of the PCB panel from which the bad PCB parts are cut requires more precision.

1 is a view schematically showing a conventional PCB panel defective unit replacement method. Referring to FIG. 1, a PCB panel 10 consisting of four PCB units 12 is shown.

In the case of replacing the defective PCB unit 12 among the four PCB unit 12 with a good PCB unit 12, first, in order to cut and remove the defective PCB unit 12, the PCB unit 12 and The vicinity of the bridge, which is the connecting portion of the PCB panel 10, is cut into the shape shown in FIG. That is, the bar portion is cut to the PCB panel 10 side including the margin margin, the cutting shape is designed in consideration of the shape and thickness of the PCB unit 12 and the joint strength of the good quality PCB unit 12 to be joined. In addition to FIG. 1, it may be various other forms.

As such, the PCB panel 10 from which the defective PCB unit 12 is removed and the good PCB panel 10 to be joined are coupled to the jig 15.

The jig 15 is formed by pressing a plurality of fixing pins to the bakelite plate, and fixing holes formed in the PCB unit 12 and the outside of the PCB panel 10 are respectively coupled to the corresponding fixing pins, respectively. The position of the PCB panel 10 is fixed, and in this way, in the state where the PCB panel 10 is fixed, the defective PCB unit 12 is removed at the position where the defective PCB unit 12 is replaced and fixed. Fixing holes formed in the PCB unit 12 are also coupled to the fixing pins of the jig 15 so that the good PCB unit 12 is aligned to the original position of the defective PCB unit 12 removed.

After the alignment of the PCB panel 10 and the replaced PCB unit 12, the bonding unit, that is, by injecting and curing epoxy by inserting the space cut out by the cutter to combine both.

However, according to the conventional PCB panel defective unit replacement method as described above, the position alignment precision of the PCB panel 10 and the replaced PCB unit 12 is completely dependent on the fixing pin on the jig 15, so that the required high precision is achieved. It is difficult to obtain, and therefore, there is a problem that the yield of the regenerated PCB panel 10 is extremely low.

In other words, in order to manufacture the jig 15, an expensive precision drilling apparatus capable of processing a fixed pin insertion hole having a correct diameter in a precise position is required, and a fixing pin press-fitted into the jig 15 is also processed with high precision. Even if the fixing pin insertion hole and the fixing pin have been processed with high accuracy, there is a possibility that an error may occur during the press-fitting process. Therefore, the manufacture of the high-precision jig 15 required for the high-density PCB panel 10 itself is required. In addition to being very difficult, deformation of the plate or displacement of the pin is likely to occur during the use process, which causes a defect, and in this case, since the entire jig 15 needs to be replaced, there is a problem in that the maintenance cost is high.

In order to solve such a problem, the replacement good-quality PCB single unit (12) without using the jig 15 to align and correct in real time the relative position of the PCB panel 10 and the replaced PCB unit 12 in real time. And a seating table mounting table on which the panel seating table is detachably installed by bolts, etc. By driving the relative movement with respect to the panel seating table, the position correction drive unit for correcting the position of the replacement good-quality PCB unit 12 with respect to the PCB panel 10 and the position correction table and the panel seating table respectively. Arrange the vision camera and the seating table mounting table for reading the positions of specific points on the replacement good quality PCB unit 12 and the PCB panel 10 relative to the vision camera. By controlling the operation of the reading position changing drive unit and the position correction driving unit and the reading position changing driving unit which sequentially moves the specific points read by the vision camera to the lower portion of the vision camera, the vision camera, position correction driving unit And a control unit for controlling the position correction drive unit by calculating the position correction data by receiving the operation result of the read position changing drive unit, and replacing the defective good PCB with the defective PCB unit 12 in the space of the PCB panel 10. After positioning so that it can be displaced separately inside, the relative position of the replacement good PCB PCB 10 is read out by the vision camera relative to the PCB panel 10, and the position of the replacement good PCB single piece 12 when deviated from the alignment position. There was a defective unit replacement device using a vision camera to correct the position to the alignment position.

The defective part replacement device using the conventional vision camera having the above-described structure drives the position correction table and the panel seating table on which the PCB panel 10 and the PCB unit 12 are mounted to move relative to the vision camera, thereby aligning the alignment parts. When the deviation from the position when correcting the position of the replacement good-quality PCB unit 12 to the alignment position, the PCB panel 10 and the PCB unit 12 is mutually driven, so that the alignment work is high due to the characteristics of the PCB alignment operation There is a problem in that it requires the precision but affects due to shaking.

In addition, the defective part replacement device using a conventional vision camera is a PCB panel 10, a replacement good quality PCB single piece 12, and each of the vision camera using a single vision camera to read the position of the specific points on the table seated respectively The specific points read by the target are sequentially moved to the lower part of the vision camera, and the position correction data is calculated and controlled. Thus, by reading the specific points located at each position and comparing the initial position data with the current position. The drive radius for positioning the replacement good quality PCB unit 12 in real time on the PCB panel 10 becomes large, and accordingly, it takes a lot of time to position and align the alignment, thereby causing inefficient problems.

The present invention is to solve the above-mentioned problems, the PCB mounting plate to be mounted in a state where the PCB mounting plate is fixed to the linear driving unit for transporting the vision camera and the replacement PCB unit for the PCB mounting plate is fixed to the PCB seat Since there is no movement of the PCB panel seated on the plate, it is possible to precisely correct the position by preventing shaking to align the replacement PCB component on the PCB panel, and to drive each of the vision cameras to identify the position of the PCB panel and PCB component. Using two vision cameras, the specific points located at each position are read to calculate the position of high accuracy, and the replacement PCB parts are replaced on the PCB panel in real time based on the data comparing the initial position with the current position. It provides a defective part replacement device of PCB panel that can be aligned and aligned more quickly and accurately. It is an object.

In order to solve the technical problem as described above, the present invention, in the defective unit replacement device of the PCB panel to quantify the defective PCB panel by replacing and bonding the replacement good-quality PCB unit in the place where the defective PCB unit of the PCB panel is removed. A bottom frame having a bottom portion contacted with the ground, a vertical frame coupled vertically to one side of the bottom frame, and fixedly positioned at an upper portion of the bottom frame, the bottom base having a predetermined width and having a flat upper portion. Body part consisting of; Located in the upper portion of the lower base, the linear drive unit for driving the front and rear, left and right, up and down, rotate relative to the lower base; An adsorption port provided at an upper end of the linear driving part and positioned to remove a defective PCB component of the PCB panel by vacuum adsorption of the non-defective PCB component; A PCB panel seating plate fixedly installed to be positioned above the linear driving unit, the PCB panel seating plate being formed in a flat shape on which a PCB panel from which the defective PCB unit is removed is lifted; A PCB fixing member configured to adjust the position according to the thickness and width of the PCB panel mounted on the PCB panel seating plate, to compress and fix the upper predetermined portion of the PCB panel from above; A pair of vision cameras independently driven to read positions of specific points on the PCB panel seat plate and the PCB panel and the PCB unit; A camera transfer linear driver which is positioned at an upper portion of the PCB panel seating plate and moves forward, backward, left and right so as to move relative to the PCB panel seating plate; And controlling the operation of the linear driver and the linear driver for camera transfer, and receiving a result of reading the position of specific points on the PCB panel seating plate, the PCB panel, and the PCB unit by calculating the position control data. And a controller for controlling the linear driver and the camera driver linear driver.

In addition, the loader magazine in which the PCB panel is removed in order to remove the defective PCB unit; A loading unit having a vacuum adsorber at a lower end thereof, which picks up the PCB panels loaded in the loader magazine one by one and places them on the PCB panel seating plate; An unloader magazine in which a replacement good quality PCB unit is replaced and the bonded good quality PCB panels are sequentially loaded in a position where the defective PCB unit is removed from the PCB panel seating plate; And an unloading unit having a vacuum adsorber at a lower end of the PCB panel seating plate, and replacing the defective PCB unit on the spot where the defective PCB unit is removed and picking up the bonded PCB panel to be loaded in the unloader magazine. Characterized in that it further comprises.

The linear driving unit may include: the X-Y axis driving unit linearly reciprocating back and forth and left and right to enable coordinate displacement of the suction port on an upper surface of the lower base by a linear servomotor by receiving power; A height adjusting part connected to an upper portion of the X-Y axis driving part and linearly reciprocating up and down on the Z axis to adjust the height of the suction port; And a rotating stage connected to an upper portion of the height adjusting part and connected to the suction port so as to be rotatable 360 ° on an upper surface thereof.

In addition, the PCB panel seating plate has a main workbench fixed to be positioned between the linear drive unit and the vision camera in the form of a flat plate is formed in the center rectangular through-hole of a predetermined width larger than the PCB panel; And a PCB seating jig coupled to an edge portion of the rectangular frame-shaped through hole, and having a latching jaw formed at an inner lower end of the inner circumferential surface thereof so that at least two sides of the PCB panel are placed on the latching jaw. The upper surface of the predetermined position is characterized in that the specific point is made to read the vision camera is formed.

In addition, the specific point is the PCB panel, the upper surface of the PCB unit, a physical mark formed at a predetermined position on the upper surface of the PCB seating jig and two base holes located on the outer surface of the upper surface of the PCB panel, the pair of vision Any one of the cameras recognizes the two base holes, recognizes a dual mark on the PCB panel, and prepares a virtual straight line based on the base holes, and the pair of vision cameras are each the PCB unit. A virtual straight line is recognized by recognizing a physical mark of a pair, and a pair of vision cameras is placed on the PCB panel to match a right angle of the PCB components to be replaced and bonded to the PCB panel. It is characterized in that it is made to detect and control the alignment degree at the same time by grabbing each of the physical mark of the PCB unit on the basis of the dual mark.

In addition, the PCB fixing member is installed in parallel to the longitudinal direction of the PCB panel mounted on the PCB seating jig, and slides corresponding to the size of the PCB panel, both ends to the lower portion of the PCB seating jig to adjust the gap. LM guide connected; And a crimping part connected to the upper portion of the LM guide in a longitudinal direction and configured to press and fix the upper end portion of the one side of the PCB panel downward.

In addition, the connecting portion of the lower frame and the lower base of the main body portion is characterized in that it further comprises a vibration absorbing device for buffering the vibration transmitted from the ground.

Hereinafter, the present invention will be described with reference to the accompanying drawings, and in the following description, when it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the subject matter of the present invention, The description may be omitted.

2 is a view schematically showing the shape of a PCB panel composed of several conventional single PCB components. Referring to FIG. 2, the PCB panel 10 is configured to print several PCB units 12 having the same pattern on a single board and to be separated after mounting parts.

Before the component mounting, a defect inspection is performed on the individual PCB components 12 arranged on the PCB panel 10. If any one of the PCB components 12 is determined as defective, the defective PCB panel 10 ), Only the defective PCB single piece 12 is replaced with a good PCB single piece 12 to be used.

Figure 3 is a perspective view schematically showing the structure of the defective unit replacement device of the PCB panel according to the present invention. Referring to FIG. 3, the defective unit replacement device of the PCB panel according to the present invention includes a main body 100, a linear driving unit 200, a suction port 300, a PCB panel seat plate 400, and a PCB fixing member ( 500), vision cameras 701 and 702, a camera transfer linear driver 600, and a controller (not shown).

The main body 100 includes a lower frame 110, a vertical frame 120, and a lower base 130.

The bottom frame 110 is located at the bottom of the defective unit replacement device of the PCB panel of the present invention, and the bottom surface portion is formed to be in contact with the ground. The vertical frame 120 is vertically coupled to one side of the lower frame 110, the lower base 130 is positioned and fixed to the upper portion of the lower frame 110, the lower base 130 is a predetermined width It has a top portion is formed flat.

The linear driving part 200 is located above the lower base 130. The upper end of the linear driving unit 200 is provided with a suction port 300 to be described later, in order to adjust the position of the suction port 300, the linear driving unit 200 can be relative to the lower base 130. The front and rear, left and right, up and down, and rotational drive are freely configured.

The suction port 300 is provided at the upper end of the linear driving part 200. The adsorption port 300 is vacuum suction to align the replacement good quality PCB single piece 12 in place to remove the defective PCB single piece 12 of the PCB panel 10 seated on the PCB panel mounting plate 400 to be described later. It will play a role.

The linear driving unit 200 receives power and uses a linear servomotor (not shown) as a driving source.

Usually, a motor that cuts out and expands a hybrid PM stepping type rotary motor, in which the linear servomotor (not shown) that is directly driven without a conversion device to linear motion to generate thrust instead of rotational force is used as a driving source. It is preferable.

The linear driving unit 200 is divided into an X-Y axis driving unit 210, a height adjusting unit 220 and a rotating stage 230.

The XY axis driving unit 210 is provided on the upper surface of the lower base 130 by a servo motor, so that the coordinate displacement of the suction port 300 on the XY axis can be linearly reciprocated back and forth, left and right to position the position. Will be adjusted.

The height adjusting unit 220 is connected to the upper portion of the X-Y axis driving unit 210, and adjusts the position by linear reciprocating up and down to enable the height adjustment of the suction port 300 on the Z-axis.

Rotating stage 230 is connected to the upper portion of the height adjustment unit 220, it is rotated 360 ° to enable the direction, angle of the suction port 300 is connected to the upper surface.

The PCB panel seating plate 400 is fixedly installed at a predetermined height of the vertical frame 120 so that the linear driving unit 200 is positioned. The PCB panel seating plate 400 is formed in a flat plate shape so that the PCB panel 10 from which the defective PCB unit 12 is removed is mounted.

The PCB panel mounted on the PCB panel seat plate 400 is fixed and seated by the PCB fixing member 500. The PCB fixing member 500 is provided to be slidably movable to adjust the position corresponding to the thickness and width of the PCB panel 10 mounted on the PCB panel seating plate 400, using the pneumatic cylinder, etc. The upper predetermined portion of the panel 10 is physically compressed and fixed from above.

The PCB panel seating plate 400 and the PCB fixing member 500 will be described in more detail with reference to FIG. 5.

The vision cameras 701 and 702 read the positions of specific points on the PCB panel seating plate 400 and the PCB panel 10 and the PCB unit 12. Two vision cameras 701 and 702 are provided, respectively. Is driven to read the specific points. The vision cameras 701 and 702 are used to read specific points on the PCB panel 10 and the PCB unit 12 in consideration of the thicknesses being different according to the types of the PCB panel 10 and the PCB unit 12. It is desirable to have an auto focusing function.

Each camera transfer linear driver 600 is connected to an upper portion of a pair of independently driven vision cameras 701 and 702, and the vision cameras 701 and 702 are driven to read the specific point.

The camera transfer linear driving unit 600 linearly reciprocates back and forth, left and right so as to allow coordinate displacement of the vision cameras 701 and 702 on the XY axis to perform relative movement with respect to the PCB panel seat plate 400 by a servomotor. Exercise to adjust position.

The controller (not shown) controls the operations of the linear driver 200 and the camera driver linear driver 600. The control unit calculates position control data by receiving a result of reading the positions of specific points on the PCB panel seating plate 400, the PCB panel 10, and the PCB unit 12 by the vision cameras 701 and 702, By controlling the driving of the linear driving unit 200 and the camera transfer linear driving unit 600 by the data, to correct the alignment position of the good quality PCB single unit 12 to be replaced in the PCB panel 10.

Accordingly, the vision cameras 701 and 702 are driven to control the position while the PCB panel seat plate 400 is fixed, and the PCB panel 10 is seated and the replacement PCB unit 12 is aligned. Compared to the conventional PCB panel 10 moving and aligning positions, the shaking of the PCB panel 10 is less, and thus, the replacement PCB unit 12 may be more precisely aligned.

In addition, the connection between the lower frame 110 and the lower base 130 of the body portion 100 is provided with a vibration absorbing device 132, it is preferable to cushion the vibration transmitted to the device from the ground. .

4 is a view schematically showing a structure in which a loader, an unloader magazine and a loading and unloading unit are included in an apparatus for replacing a defective unit of a PCB panel according to the present invention. Referring to FIG. 4, the defective unit replacement device of the PCB panel of the present invention further includes a loader magazine 810, a loading unit 820, an unloader magazine 830, and an unloading unit 840. It is preferable to automatically load the PCB panel 10 from which the defective PCB unit 12 has been removed into the PCB panel seating plate 400 and to unload the mass-produced PCB panel 10.

The loader magazine 810 is formed in a rectangular frame shape having an upper portion having a predetermined height so that the PCB panels 10 from which the defective PCB unit 12 has been removed are sequentially loaded. The loader magazine 810 is provided with an elevator upward and downward to upward and downward. The panels 10 are transferred.

The loading unit 820 is provided with a vacuum adsorber (not shown) at one side lower end thereof, and is mounted on the PCB panel seat plate 400 in a state in which the PCB panel 10 loaded on the loader magazine 810 is picked up one by one. To adjust the height, and to rotate horizontally to match the direction, it is placed on the PCB panel seating plate (400).

The unloader magazine 830 is formed in the same structure as the loader magazine 810, the replacement good quality PCB single piece 12 in place to remove the defective PCB single piece 12 from the PCB panel seating plate 400 therein Replacement and bonded good PCB panels 10 are loaded in sequence.

The unloading unit 840 is formed in the same structure as the loading unit 820, the replacement good quality PCB unit 12 is replaced in place of removing the defective PCB unit 12 from the PCB panel seating plate 400, The bonded good PCB panel 10 is picked up and loaded in the unloader magazine 830.

5 is a perspective view schematically showing the structure of a PCB panel seating plate and a PCB fixing member according to the present invention. Referring to FIG. 5, the PCB panel seating plate 400 of the present invention includes a main work bench 410 and a PCB seating jig 420.

The main work bench 410 is formed in a flat plate shape, in order to accommodate the PCB panel 10 of various types and sizes, the central portion is formed in a rectangular frame-shaped through-hole larger than the PCB panel 10. The main work bench 410 is fixedly installed to be positioned between the linear driving unit 200 and the vision cameras 701 and 702.

PCB seating jig 420 is coupled to the edge portion of the rectangular frame-shaped through hole formed in the main workbench 410, the locking projection protruding with a predetermined width on the inner lower end of the inner surface of the through hole formed in the rectangular frame shape It is formed along the longitudinal direction of the inner circumferential surface.

The PCB panel 10 is covered on the latching jaw of the PCB seating jig 420. Since the through-hole of the rectangular frame formed in the main worktable 410 is formed wider than the width of the PCB panel 10. In general, only two sides of the PCB panel 10 extend to the upper part of the latching jaw formed on the inner surface of the PCB seating jig 420.

Only two sides of the PCB panel 10 are spread over the latching jaw of the PCB seating jig 420, and the other side is pressed by the PCB fixing member 500, so that the PCB panel 10 is seated on the PCB. It is fixed to the jig 420.

A plurality of specific points to be read by the vision cameras 701 and 702 are formed at predetermined positions on the upper surface of the PCB seating jig 420.

The PCB fixing member 500 includes an LM guide 510 and a crimping portion 520.

The LM guide 510 is parallel to the longitudinal direction of one side of the PCB panel 10 mounted on the PCB seating jig 420, so as to correspond to the size of the PCB panel 10 mounted on the PCB seating jig 420. Both ends are connected to a lower portion of the PCB seating jig 420 to be slidably movable to adjust the gap horizontally.

One or more crimping portions 520 are provided to be positioned above the LM guide 510, and are connected to the LM guide 510 so as to be movable in the longitudinal direction. The pressing portion 520 is connected to the upper surface of the lower surface of the LM guide 510, the upper one side is formed to protrude in the shape of "", the upper end of the one side of the PCB panel 10 to the lower side. It is compressed and fixed.

6 is a view schematically illustrating a state in which the vision camera according to the present invention reads the positions of the PCB panel seating plate and the PCB panel. Referring to FIG. 6, the specific points of the present invention are preferably the physical marks F and f and the base hole H.

Specific points on the PCB panel seating plate 400, the PCB panel 10, and the PCB unit 12 may include a physical mark F at a predetermined position on the upper surface of the PCB panel 10, and an upper surface of the PCB unit 12. A physical mark (f) at a predetermined position refers to a physical mark (F) formed at a predetermined position on an upper surface of the PCB seating jig and two base holes (H) located at an outer surface of the upper surface of the PCB panel (10).

When the PCB panel 10 is mounted on the PCB seating jig 420 of the PCB panel seating plate 400 to be fixed by the PCB fixing member 500, the pair of vision cameras 701 and 702 are the dual. The marks F and f and the base hole H are read to recognize the positions.

When the vision cameras 701 and 702 read the physical marks F and f and the base hole H, a second vision camera 702 of the pair of vision cameras 701 and 702 is driven to drive the PCB panel. (10) Recognizing the two base holes (H) on both sides of the lower side in order to prepare a virtual straight line to level, and to recognize the vertical mark (F) located on the PCB panel 10 to determine the right angle. Caught.

In addition, the first vision camera 701 of the pair of vision cameras 701 and 702 recognizes the upper one of the physical marks f of the physical marks f of the PCB unit 12 and the second The vision camera 702 recognizes a lower one of the physical marks f of the PCB unit 12 and prepares a virtual straight line. The rotation stage 230 is rotated to correspond to the perpendicularity of the virtual straight lines to match the perpendicularity of the replacement PCB unit 12.

The first vision camera 701 recognizes the physical mark F of the PCB panel 10, recognizes the upper physical mark f of the PCB unit 12, and reaches a value within a set reference range. Will be aligned. At this time, the first vision camera 701 detects the alignment degree of the lower physical mark f of the PCB unit 12 in real time and aligns it in the correct position.

The physical mark (F) of the PCB seating jig 420 is used as an origin to hold the standard when initializing the equipment or correcting the measurement error of the equipment.

In this way, by using the two vision cameras (701, 702) to recognize the physical marks (F, f) and the base hole (H) at the same time, the vision cameras (701, 702) of the vision cameras than when using only one conventional vision camera The driving radius becomes small, and at the same time, each position is recognized and position correction is possible in real time, which has the advantage of aligning the replacement PCB unit 12 in the correct position more quickly.

As such, although the invention has been described by way of limited embodiments and drawings, the invention is not limited thereto and is within the scope of equivalents of ordinary skill and the claims to be described below in the technical field to which the invention pertains. Various modifications and variations are possible, of course.

As described above, the defective unit replacement device of the PCB panel according to the present invention, the PCB seating plate is fixed to the PCB panel is seated, the linear driving unit for transferring the vision camera and the replacement PCB unit for the PCB seating plate relative By driving to move, and corrected to the alignment position, there is no movement of the PCB panel seated on the PCB seating plate, it has the effect of more accurate position correction by preventing shaking to align the replacement PCB unit on the PCB panel.

In addition, by using two vision cameras each driving a vision camera to determine the position of the PCB panel and the PCB unit, by reading a specific point located at each position to calculate the position of the high accuracy, the initial position data and the current position By comparing the data, the linear drive unit aligns the replacement good-quality PCB unit on the PCB panel in real time, which has the effect of aligning the position faster and more accurately.

Claims (7)

In the defective unit replacement device of the PCB panel, in which the defective PCB unit is replaced and bonded in place of removing the defective PCB unit from the PCB panel, A bottom frame in which the bottom portion is brought into contact with the ground, a vertical frame vertically coupled to one side of the bottom frame, and fixedly positioned at an upper portion of the bottom frame, the bottom base having a predetermined width and having a flat upper portion. A main body configured; Located in the upper portion of the lower base, the linear drive unit for driving the front and rear, left and right, up and down, rotate relative to the lower base; An adsorption port provided at an upper end of the linear driving part and positioned to remove a defective PCB component of the PCB panel by vacuum adsorption of the non-defective PCB component; A PCB panel seating plate fixedly installed to be positioned above the linear driving unit, the PCB panel seating plate being formed in a flat shape on which a PCB panel from which the defective PCB unit is removed is lifted; A PCB fixing member configured to adjust the position according to the thickness and width of the PCB panel mounted on the PCB panel seating plate, to compress and fix the upper predetermined portion of the PCB panel from above; A pair of vision cameras independently driven to read positions of specific points on the PCB panel seat plate and the PCB panel and the PCB unit; A camera transfer linear driver which is positioned at an upper portion of the PCB panel seating plate and moves forward, backward, left and right so as to move relative to the PCB panel seating plate; And It controls the operation of the linear driving unit and the linear driving unit for the camera transfer, the vision camera receives the result of reading the position of the specific point on the PCB panel seating plate and the PCB panel and PCB unit to calculate the position control data to calculate the linear And a control unit for controlling the driving unit and the camera driving linear driving unit. A loader magazine in which the PCB panels from which the defective PCB components are removed are sequentially loaded; A loading unit having a vacuum adsorber at a lower end thereof, which picks up the PCB panels loaded in the loader magazine one by one and places them on the PCB panel seating plate; An unloader magazine in which a replacement good quality PCB unit is replaced and the bonded good quality PCB panels are sequentially loaded in a position where the defective PCB unit is removed from the PCB panel seating plate; And The unloading unit is provided with a vacuum adsorber at a lower end of the PCB panel seating plate, and the unloading unit for picking up the good PCB board to which the replacement good PCB unit is replaced and bonded to the unloader magazine in place of removing the defective PCB unit. The defective unit replacement device of the PCB panel, characterized in that made. delete The method of claim 1, The linear drive unit: The X-Y axis driving unit linearly reciprocating back and forth, left and right to enable a coordinate displacement of the suction port on an upper surface of the lower base by a linear servomotor by receiving power; A height adjusting part connected to an upper portion of the X-Y axis driving part and linearly reciprocating up and down on the Z axis to adjust the height of the suction port; And Connected to the upper portion of the height adjustment portion, the upper side of the suction port is connected to the rotatable stage 360 °; defective unit replacement device for a PCB panel comprising a. The method of claim 1, The PCB panel seat plate is: A main workbench fixedly installed at the center to be positioned between the linear driving unit and the vision camera in a flat plate shape through which a through hole having a predetermined width larger than the PCB panel is formed; And The PCB seating jig is coupled to the edge portion of the rectangular frame-shaped through hole, the engaging lower jaw is formed on the inner lower end of the inner circumferential surface so that at least two sides of the PCB panel is placed on the engaging jaw; Defective single part replacement device for a PCB panel, characterized in that the specific position that is read by the vision camera is formed at a predetermined position on the upper surface of the PCB seating jig. The method according to claim 1 or 4, The specific point is the PCB panel, the upper surface of the PCB unit, a physical mark formed at a predetermined position on the upper surface of the PCB seating jig and two base holes located on the outer surface of the upper surface of the PCB panel, Any one of the pair of vision cameras recognizes the two base holes, Recognizes a physical mark on the PCB panel and prepares a virtual straight line based on the base hole, and the pair of vision cameras respectively recognizes a physical mark of the PCB unit and prepares a virtual straight line, respectively. Align a virtual straight line of the PCB unit to be replaced and bonded to the PCB panel with respect to a virtual straight line provided, and the pair of vision cameras each point to the physical mark of the PCB unit based on the physical mark on the PCB panel. Defective single unit replacement device for a PCB panel, characterized in that it is configured to hold at the same time to detect and control the degree of alignment. The method of claim 4, wherein The PCB fixing member is: An LM guide installed in parallel in the longitudinal direction of the PCB panel mounted on the PCB seating jig and slidably moved in accordance with the size of the PCB panel, and having both ends connected to a lower portion of the PCB seating jig to adjust the gap; And Is connected to the upper portion of the LM guide so as to flow in a longitudinal direction, the crimping unit for pressing and fixing the upper end portion of the one side of the PCB panel to the lower side; defective unit replacement device for a PCB panel further comprises a . The method of claim 1, The connection unit of the lower frame and the lower base of the main body portion vibration absorbing device for buffering the vibration transmitted from the ground; defective unit replacement device of the PCB panel, characterized in that further comprises.

Images