KR200189139Y1 - Pcb auto tester - Google Patents

Abstract

The present invention relates to a printed circuit board automatic tester (PCB auto tester), a plurality of rows of fixing holes are formed at predetermined intervals having a work base for fixing the jig of various sizes, and the elevating above the work base As the plate is raised and lowered to a predetermined height, the tester main body tests the quantity and defect of the single-sided printed circuit board or the double-sided printed circuit board, and a loading box in which a plurality of printed circuit boards are loaded on one side, and printed by vacuum suction force. Circuit board loading box Printed circuit board loading unit having a printed circuit board loading device for picking up the top printed circuit board and moving it to the jig position of the tester main body, and each storage box for storing a good or bad printed circuit board on both sides. A vacuum suction force on the printed circuit board having a good and bad test operation completed by the tester main body. Each of the good and bad printed circuit board accommodating and storing units having a printed circuit board unloading device which is picked up and moved to the good or bad printed circuit board storage box is separately formed as a separate object.

According to the present invention as described above, by using a PCB of any size completely eliminates the need to make a separate jig to improve the generality of the jig, it is possible to test not only single-sided PCB, but also double-sided PCB, and each component In case of unexpected malfunction, it is possible to replace the component with another component so that the work is not interrupted and the repair and repair of the part is facilitated, contributing to the improvement of the work efficiency.

Description

Printed Circuit Board Automatic Tester {PCB auto tester}

The present invention relates to a printed circuit board automatic tester (PCB auto tester), more specifically to increase the versatility of jigs (jig) for supporting the printed circuit board, to enable the test of the double-sided printed circuit board, The present invention relates to an automatic printed circuit board tester that can more effectively cope with an unexpected error in the event of an error.

Typically, after manufacturing a printed circuit board (hereinafter referred to as PCB), the presence of abnormalities in the electrical circuit is discriminated and classified as good or bad. The supply of PCB for improving workability, Various types of automated testers are known to ensure that test operations, good or bad product identification operations are carried out consistently.

A typical embodiment of a PCB automatic tester known to date is briefly described with reference to the accompanying drawings.

1 to 3, a PCB loading unit 2, a PCB test unit 3, and a non-defective PCB accommodating unit 4 in which a plurality of PCBs P are loaded on the tester body 1 And the defective PCB accommodating portion 5 are sequentially provided in one piece, and each of the above components is provided so that the conveyor belt 6 can move in a straight line, and the PCB by the movement of the conveyor belt 6 is provided. While checking the quantity and defect in the PCB test unit 3 while moving one PCB (P) drawn out from the loading unit 2, the good PCB (P) is housed in the good PCB receiving unit (4), The defective product PCB P is configured to be accommodated in the defective PCB storage part 5.

As shown in FIG. 3, the PCB test unit 3 is hingedly coupled to the upper cover 7, and a jig for supporting the PCB P is provided below the upper cover 7. (8) is coupled, the lower operation of the upper cover 7, the amount of PCB (P), the bad test operation is made.

On the other hand, the tester body 1 is provided with a monitor 9 to display the quantity and defect of the PCB (P).

However, in the PCB automatic tester according to the prior art known to date as described above, there is a decisive disadvantage that does not contribute to the improvement of the work efficiency due to the lack of universality of the PCB. In other words, each test operation of the PCB (P) having a different size, each jig (8) to match the size of the PCB (P) has to be manufactured, so the problem of manpower loss and cost increase was serious. In addition, it is possible to test only the one-sided PCB (P) formed on one side of the part to be tested, and the test work on the double-sided PCB (P) formed on both sides of the part to be tested is impossible. There was a problem that it could not fulfill the role of the PCB automatic tester because it could not cope efficiently with P).

In addition, a PCB loading unit 2 on which a plurality of PCBs P are loaded on the tester body 1, a PCB test unit 3, a good quality PCB accommodating part 4, and a defective PCB accommodating part 5. Since each component consists of a single assembly, if unexpected malfunctions occur due to various reasons, all the series of work is stopped until the parts are repaired and repaired. There was a problem.

The main purpose of the present invention is to provide a PCB automatic tester which can greatly contribute to the improvement of work efficiency by improving the generality of the jig by completely eliminating the need to manufacture a separate jig using any size PCB.

Another object of the present invention is to provide a PCB automatic tester that enables the test of the double-sided PCB as well as the single-sided PCB.

Another object of the present invention is to separate and arrange each component, so that in case of unexpected malfunction, the component is replaced with another component so that the work is not interrupted and the repair and maintenance of the corresponding part is facilitated. To provide a PCB automatic tester that can greatly contribute to the improvement of work efficiency.

1 to 3 show a printed circuit board automatic tester according to the prior art,

1 is a front view.

2 is a side view.

3 is a perspective view for explaining a configuration of a printed circuit board test unit.

Figure 4 is a perspective view showing the overall configuration of a printed circuit board automatic tester according to the present invention.

5 and 6 are a plan view for explaining the operation of the printed circuit board automatic tester according to the present invention.

Figure 7 shows the main body of the automatic printed circuit board tester according to the present invention,

7 is a front view.

8 is a perspective view.

Figure 9 is a perspective view showing a printed circuit board loading unit of the printed circuit board automatic tester according to the present invention.

10 to 12 show the configuration of a printed circuit board loading unit according to the present invention,

10 is a plan view.

11 is a side view.

12 is a front view.

Figure 13 is a plan view showing a printed circuit board transfer means according to the present invention.

14 is a cross-sectional view for explaining a cylinder bracket fixing structure of a printed circuit board transfer means according to the present invention.

15 is a cross-sectional view illustrating a process of transferring a printed circuit board by the vacuum cylinder of the printed circuit board transfer means according to the present invention.

16 is a conceptual diagram for explaining the vacuum flow of the printed circuit board automatic tester according to the present invention

17 is an operation diagram for explaining the vacuum breaking action of the automatic printed circuit board tester according to the present invention.

18 to 20 are for explaining the loading plate driving means of the automated printed circuit board tester according to the present invention,

18 is a plan view.

19 is a front view.

20 is a side view.

21 to 23 are for explaining the vertical moving plate driving means of the automatic printed circuit board tester according to the present invention,

21 is a plan view.

22 is a side view.

23 is a front view.

24 is a plan view for explaining a printed circuit board support means of a printed circuit board automatic tester according to the present invention.

25 to 27 is a view showing the quantity of the printed circuit board automatic tester, defective storage unit according to the present invention,

25 is a perspective view.

26 is a plan view.

27 is a front view.

<Explanation of symbols for the main parts of the drawings>

10,10 ': jig 100: tester body

120: work base 150: elevating plate

181,182,191,192: jig fixing member 200: printed circuit board loading unit

210: loading plate 220: moving plate

231: drive motor 232: slider

234: vacuum cylinder 249: end cap

251 guide bar clamp 252253 guide bar

254,255: Guide rail bracket 256,257: Long hole

258,259: guide rail 260: cylinder bracket

263: long hole 264: fixing bolt

265 nut 267 piston rod

268: adsorber 269; Distance sensor

270: solenoid unit 271: main solenoid

275: auxiliary solenoid 311,312: alignment cylinder

321,322 First Bracket 323,324

325: fixture 326: nut

327,328: second bracket 340: touch screen controller

350: Post 400: Good and bad PCB storage storage unit

410,420: good or bad PCB loading plate

In order to achieve the above object of the present invention, a plurality of rows of fixing holes are formed at predetermined intervals to have a work base for fixing jig of various sizes, and the elevating plate on the upper side of the work base has a predetermined height. A tester main body for testing the quantity and defect of single-sided printed circuit board or double-sided printed circuit board while being raised and lowered; and a loading box for loading a plurality of printed circuit boards on one side and a vacuum suction force on the top of the printed circuit board loading box. A printed circuit board loading unit having a printed circuit board loading device for picking up a printed circuit board and moving it to a jig position of the tester main body; and a respective storage box for storing a good or bad printed circuit board on both sides of the tester; The printed circuit board on which the good and bad test operation is completed by the main body is picked up by a vacuum suction force. Or a quantity having a printed circuit board unloading device which moves to a defective printed circuit board storage box, and a defective printed circuit board storage and storage unit separately formed as separate objects, and the printed circuit board loading device and the printed circuit board unloading unit. The apparatus includes a drive source, a slider linearly reciprocated by the drive source, power transmission means for transmitting power of the drive source to the slider, and a predetermined movement of the printed circuit board while being fixed to the slider and linearly reciprocating. A plurality of vacuum cylinders fixed to the printed circuit board moving means, a plurality of vacuum cylinders fixed to the printed circuit board moving means, for sucking or separating the printed circuit board with a vacuum suction force, and a vacuum pressure source for selectively supplying a vacuum pressure to the vacuum cylinder. Provided is a printed circuit board automatic tester, comprising a configuration.

The printed circuit board movement means may include a guide bar clamp fixed to an end of the slider, a guide bar fixedly coupled to both ends of the guide bar clamp, an end cap coupled and fixed to an end of the guide bar, and the guide bar. Two pairs of guide rail brackets fixedly coupled to both sides of the guide rails, guide rails fixed to the guide rail brackets so as to maintain a predetermined long hole, and fixed to the guide rails, and the vacuum cylinder is mounted on a predetermined portion. It characterized in that it comprises a plurality of cylinder brackets fixed respectively.

The cylinder bracket is formed with a long hole for adjusting the length and angle, respectively, characterized in that the position is fixed by the fixing bolt and nut penetrated through the long hole of the long hole and the guide rail.

A predetermined portion of the cylinder bracket is provided with at least one distance sensor for detecting the distance to the printed circuit board supported by the vacuum cylinder to generate an emergency signal when the printed circuit board falls. do.

The vacuum cylinder is connected to each of the three lines of hose connected to the solenoid unit for controlling the flow of air, one of which is installed to pass through the auxiliary solenoid communicating with the solenoid unit, jig the printed circuit board by the vacuum cylinder When placed in, it is characterized in that it is configured to blow the air from the end of the vacuum cylinder by driving the auxiliary solenoid at the same time to block the vacuum pressure by the action of the solenoid unit.

Each of the printed circuit board stacking units is formed at right angles to surround printed circuit boards, and the first brackets are fixed to each other, and the second brackets each having a long hole in the longitudinal direction on the first bracket are fasteners. And a nut fixed to each other to adjust the position, and the alignment cylinders supporting both side portions of the printed circuit board are fixed to a predetermined portion of the second bracket, respectively, and are waiting to move on the loading plate by driving the alignment cylinder. It is characterized in that it is configured to accurately position the best printed circuit board.

The PCB loading unit is characterized in that the operator is provided with a touch screen controller for controlling the overall operation by the operator to lightly touch the surface.

According to the present invention, the use of a PCB of any size completely eliminates the need to make a separate jig to improve the generality of the jig, and to enable the test of both sides PCB as well as double-sided PCB, and each component In case of unexpected misoperation, it is possible to replace the component with another component, which greatly contributes to the improvement of work efficiency.

Hereinafter, the PCB automatic tester according to the present invention will be described according to the embodiment shown in the accompanying drawings.

As shown in Figures 1 to 27, the PCB automatic tester according to the present invention, can accommodate the jig 10 of any size, as well as the cross-sectional PCB (P) (shown in Figures 15 and 24), The double-sided PCB (P) is also equipped with a tester main body 100 capable of testing, and a PCB loading box 201 in which a plurality of PCBs (P) are loaded on one side, and picks up the uppermost PCB (P) by vacuum suction force. PCB loading unit 200 having a PCB loading device (M) for moving to the jig 10 position of the tester body 100, and each storage box (401, 402) in which both or poor PCB is stored on both sides. PCB having a) and mounted on the jig 10 of the tester main body 100 and picking up the PCB (P) having completed the positive and bad test operation by vacuum suction force and moving the positive or defective PCB storage box (401, 420). The amount of the unloading device M 'and the defective PCB accommodating and storage unit 400 are separately formed and configured.

In more detail, the tester main body 100 has a pedestal 110 having a predetermined height as shown in FIGS. 7 and 8, and a working base 120 fixed to an upper surface of the pedestal 110. And, the machine room box 130 is fixed to the support angle 131 having a predetermined height on both sides of the upper surface of the work base 120, and the piston rod 140 is fixed to the inner central portion of the machine room box 130 Drive cylinder 145 extending downward, the elevating plate 150 is fixed to the end of the piston rod 140 of the drive cylinder via the clamp 141, and each corner portion of the lower surface of the machine room box 130 It is composed of a plurality of guide bars 160 to connect the respective corner portions of the elevating plate 150 to support the elevating operation of the elevating plate 150.

The work base 120 has a plurality of screw fastening holes 171 and 172 formed in a row in the front and rear directions at predetermined intervals, and the plurality of screw fastening holes 171 and 172 are fastened respectively. The jig fixing members 181 and 182 for fixing the jig 10 are fixed by the fasteners 173 and 174. That is, the jig fixing members 181 and 182 are appropriately moved according to the size of the jig 10, and then the plurality of fasteners 173 and 174 are fastened to firmly fix the jig 10.

On the other hand, the elevating plate 150 is formed with a plurality of long holes 151, 152 in the left and right direction, the fasteners 153, 154 through the long holes 151, 152 is inserted into the lifting plate 150 By fixing the upper jig fixing members 191 and 193 on both sides of the lower plate 150, the upper jig 10 'is fixed to the lower surface of the elevating plate 150, and thus the lower jig 10 Test of the double-sided PCB (P).

The PCB loading unit 200, as shown in Figure 9 to 12, the lifting means for raising and lowering the loading plate 210 loaded with the PCB (P) with the PCB loading device (M) and It includes a front and rear movement means for linearly moving the vertical moving plate 220 for supporting the PCB (P) mounted on the loading plate 210 in the front and rear directions, first of the PCB loading device (M) The configuration will be described in detail.

The PCB loading device M according to the present invention includes a drive motor 231 installed at a predetermined portion of the PCB loading unit 200, and a slider 232 linearly reciprocating in both directions by driving of the drive motor 231. And, power transmission means for transmitting the power of the drive motor 231 to the slider 232, the PCB loading box 201 of the PCB loading unit 200 is fixed integrally to the end of the slider 232 and PCB moving means for moving the PCB (P) while linearly reciprocating between the jig 10 of the tester body 100 and a plurality of vacuum cylinders fixed to the PCB moving means to suck the PCB (P) with a vacuum suction force 234, and the compressor (not shown) which supplies a vacuum pressure to the said vacuum cylinder 234 is included.

Referring to one embodiment of the power transmission means for linearly reciprocating the slider 232 with the power of the drive motor 231, the drive pulley 241 is installed on both sides of the front, rear of the PCB loading unit 200, respectively. And the driven pulley 242, the first belt 243 connecting the drive motor 231 and the drive pulley 241, the drive pulley 241 and the driven pulley 242, and the slider A second belt 244 fixed to a predetermined portion of the portion 232 to impart a moving force to the slider 232, and guide rails 245 fixed to both sides with the second belt 244 interposed therebetween ( 246 and guide shoes 247 and 248 fixed to both lower sides of the slider 232 and coupled to the guide rails 245 and 246, respectively.

As shown in FIGS. 13 and 14, the PCB moving unit includes a guide bar clamp 251 fixed to an end of the slider 232, and a guide fixedly coupled to both side ends of the guide bar clamp 251. Bars 252 and 253, end caps 249 coupled to and secured to ends of the guide bars 252 and 253, and coupled to both sides of the guide bars 252 and 253. Two pairs of guide rail brackets 254 and 255 defined, and guide rails 258 fixed to the guide rail brackets 254 and 255 so that predetermined holes 256 and 257 are held. 259 and a plurality of cylinder brackets 260 fixed to the guide rails 258 and 259 to enable position adjustment.

The guide rail brackets 254 and 255 are assembled to move along the guide bars 252 and 253 according to the size of the PCB P. Once the position is determined, the set screw 261 ( 262 is fastened to fix the guide rail brackets 254 and 255.

Longitudinal holes 263 for length and angle adjustment are formed in the cylinder bracket 260, respectively, through the long holes 256 and 257 of the long holes 263 and the guide rail brackets 254 and 255. The fixing bolt 264 and the nut 265 penetrate to each other, and the vacuum cylinder 234 is fixed to the cylinder bracket 260, respectively.

As shown in FIG. 15, the vacuum cylinder 234 is provided with a rubber adsorber 268 at the lower end of the piston rod 267, and the PCB (P) is not damaged without damaging the PCB (P). It is configured to move by lifting).

The vacuum cylinder 234 is connected to the compressor and the usual connecting means to generate a vacuum pressure, a brief description of the configuration, as shown in Figure 16, the slider 232, the vacuum pressure supply hose of the compressor Three ports (A) (B) (C) are connected to each other, and each outlet of the ports (A) (B) (C) has four lines of hoses (A1) in the same number as the vacuum cylinders 234. (A4), (B1) .. (B4), (C1) .. (C4), (D1) .. (D4) are connected, and each vacuum cylinder 234 has three lines Hose (A1) (B1) (C1), (A2) (B2) (C2), (A3) (B3) (C3), (A4) (B4) (C4) are connected and ultimately port (A) (B) serves to lower and raise the piston rod 267 of each vacuum cylinder 234, the remaining port (C) is driven by the vacuum cylinder 234, each adsorber 268 is a PCB (P ) And move it to the upper surface of the jig 10, and the vacuum from the adsorber 268 It is designed to play the role of blowing in the opposite concept. This is hereinafter referred to as 'vacuum breakdown'.

The role of the port (C) is a characteristic technique of the present invention, when described in more detail as follows.

As shown in FIG. 17, the main solenoid 271 of the solenoid unit 270 connected to the compressor, the vacuum generator 272, and the port C are installed in series with the hoses 273 and 274. In addition, a separate auxiliary solenoid 275 is installed adjacent to the vacuum valve 272, and the auxiliary solenoid 275 is separately provided to the main solenoid 271 and the hose 274 directed to the port C. Hoses 276, 277 are connected.

Therefore, the auxiliary solenoid 275 of the conventional vacuum cylinder 234 is maintained in an off state, and when performing the vacuum breaking action, a signal is applied to the main solenoid 271 and no longer through the hose 274. At the same time, the vacuum pressure is not applied, and a signal is applied to the auxiliary solenoid 275 so that air flows through the hose 276-> auxiliary solenoid 275-> hose 277-> port C. It is discharged from the adsorber 268 of the cylinder 234 to separate the PCB (P).

The first purpose of the vacuum destruction is to prevent the phenomenon of splashing the PCB (P) by the spring force of the spring embedded in the jig 10, when the PCB (P) is placed on the upper surface of the jig 10, the second purpose is vacuum Since the vacuum does not disappear instantaneously even if the vacuum is removed from the adsorber 268 of the cylinder 234, in some cases to prevent the phenomenon that the PCB (P) rises along the adsorber 268 in the state where the vacuum is removed. Play a role.

In addition, the one-side cylinder bracket 260 is fixed to the sensor 269 for detecting the distance to the PCB (P), a plurality of vacuum cylinders 234 by the PCB (P) while the various movements When PCB (P) is dropped for various reasons, the sensor (269) detects this to stop the system immediately to prevent malfunction and accidents.

On the other hand, when explaining an embodiment of the lifting means for raising and lowering the loading plate 210, as shown in Figures 18 to 20, each of which is provided with a predetermined height difference on a predetermined portion of the base plate 280 Upper Bracket 281 and Lower Bracket

282, a ball screw 283 which is installed to be rotatable at an intermediate portion of the upper and lower brackets 281 and 282, and a guide fixed to four places with the ball screw 283 in the center. A lifting member 285 coupled to the bar 284 and the ball screw 283 so as to be lifted and lowered, and coupled to penetrate the guide bar 284 and to which the loading plate 210 is fixed; A drive motor 286 fixed to one side of the bracket 282, a drive pulley 287 and a driven pulley 288 fixed to ends of the drive motor 286 and the ball screw 283, respectively, A belt 289 connecting the drive pulley 287 and the driven pulley 288.

A sensor dog 290 is provided at one side of the elevating member 285, and a support bar 291 is provided at predetermined portions of the upper and lower brackets 281 and 282 facing the sensor dog 290. The support rod 291 is provided with a plurality of sensors 292 for acting with the sensor dog 290 to regulate the height of the elevating member 285.

In addition, the front and rear movement means for linearly moving the vertical moving plate 220 in the front and rear directions for supporting the PCB (P) mounted on the loading plate 210, as shown in Figure 21 and 23, A ball screw 301 installed in the middle of the upper surface of the base plate 280 in the longitudinal direction, a guide bar 302 respectively installed on both sides of the upper surface of the base plate 280 with the ball screw 231 interposed therebetween; And a driving motor 303 installed at one side of the base plate 280, and a driving pulley 304 and a driven pulley 305 respectively installed at ends of the driving motor 303 and the ball screw 231. And a belt 306 connecting the driving pulley 304 and the driven pulley 305, the connecting member 307 slidably coupled to the ball screw 301, and the guide bar 302. Fixed to the connecting member 308 is coupled to the plurality of connecting members 307 and 308 It includes a slide base 309 is fixed to the moving plate 220 is standing on one side of the upper surface, the guide plate 310 on the other side of the base plate 280 perpendicular to the moving plate 220 ) Is erected.

Predetermined sides of the PCB loading unit 200 are provided with PCB alignment means in order to accurately grasp the position of the uppermost PCB (P) waiting to move in the loading plate 210.

As shown in FIG. 24, the alignment cylinders 311 and 312 respectively support the other two side surfaces of the PCB P supported on both sides by the vertical moving plate 220 and the guide plate 310. . That is, the first brackets 321 and 322 fixed in a form surrounding the PCB P together with the vertical moving plate 220 and the guide plate 310 on both sides of the PCB loading unit 200 and the length thereof, respectively, Long holes 323 and 324 are respectively formed in the direction and the second bracket 327 (328) fixed to the first bracket 321, 322 by fasteners 325 and nuts (not shown), respectively. And alignment cylinders 311 and 312 that are respectively fixed to ends of the second brackets 327 and 328.

The second bracket 327 and 328 may be adjusted at a predetermined angle with respect to the first bracket 321 and 322 according to the size of the PCB (P), and the alignment cylinders 311 and 312. ) Is also configured to adjust the angle so that the sides of the PCB (P) can be accurately pushed and aligned.

The PCB loading unit 200 is supported by a touch screen type controller 340 as a post 350, the touch screen 340 is to control the overall work by the operator lightly touch the surface.

On the other hand, the good and bad PCB storage storage unit 400 has a structure basically the same as the configuration of the PCB loading unit 200 described above.

That is, after a typical test in the tester body 100, by driving the PCB unloading device (M ') having the same structure as the PCB loading device (M) of the PCB loading unit 200, PCB (P) Is adsorbed by vacuum pressure and is linearly moved to supply the positive or defective containers 401 and 402.

Wherein the PCB loading unit 200 is composed of only one PCB loading plate 210, the positive and bad PCB storage storage unit 400 is to store the positive and bad PCB (P), respectively, Figures 25 to 27 As shown in the drawings, since only the points having the PCB unloading device M 'including a separate quantity and a bad PCB loading plate are different, a detailed description thereof will be omitted.

In FIG. 4, reference numerals 501, 502, and 503 denote casings respectively installed at the lower parts of the tester main body 100, the PCB loading unit 200, and the quantity and defective PCB storage storage unit 400, respectively. Enables movement of the tester body 100, the PCB loading unit 200 and the bad PCB storage and storage unit 400, and also allows the tester body 100, the PCB loading unit 200 and the bad PCB storage and storage unit 400. In the state of setting the position of also serves to prevent flow arbitrarily.

On the other hand, according to the printed circuit board automatic tester according to the present invention, a cable and a vacuum hose of several lines are complicatedly installed for supplying the vacuum pressure, the illustration of the cable is omitted to help the present invention, vacuum The configuration of the hose for transferring the vacuum pressure to the cylinder 234 is schematically illustrated in FIGS. 9, 16 and 17.

In the printed circuit board automatic tester according to the present invention, which is configured as described above, as shown in FIGS. 4 to 6, the PCB loading unit 200 is installed at the front side of the tester main body 100. Since the PCB storage storage unit 400 is installed, first the PCB moving means of the PCB loading unit 200 is driven to suck the uppermost PCB P loaded in the PCB loading box 201, and then the tester main body 100. ) Is moved to the position of the jig 10 supported, the PCB (P) is put down at the position of the jig 10 and returned to the initial position.

Thereafter, the driving cylinder 145 of the tester main body 100 is driven to test the quantity and defect of the PCB P while the lifting plate 150 descends. When the elevating plate 150 is raised again to return to the initial position, the PCB transfer means of the positive and bad PCB storage storage unit 300 is driven to suck the PCB (P) that is determined to be positive or defective. , To move to the storage box (401) 402 to be loaded.

By repeatedly performing the above operation to test the PCB (P) more effectively, it is separated and stored as a good, bad PCB.

The above-described series of operations will be described in more detail.

First, the operator puts a plurality of PCB (P) for the test on the PCB loading plate 210 of the PCB loading unit 200. At this time, in consideration of the size of the PCB (P) it is possible to vary the position of the vertical moving plate 220 is supported on one side of the PCB (P).

That is, the power of the drive motor 303 is transmitted to the ball screw 301 through the belt 306 connecting the drive pulley 304 and the driven pulley 305, the connection member coupled to the ball screw 301 307 is moved. A slide base 309 is fixed to an upper surface of the connecting member 307, and a plurality of connecting members 307 and 308 coupled to the guide bar 303 are formed at each corner of the lower surface of the slide base 309. Since it is fixed, the slide base 309 moves along the ball screw 301 to adjust the position of the vertical moving plate 220.

As such, the PCB P mounted on the loading plate 210 in the state where the vertical moving plate 220 is adjusted is supported by the vertical moving plate 220 and the guide plate 310.

As described above, each of the plurality of PCBs P supported by both sides by the vertical moving plate 220 and the guide plate 310 has one side of the PCB P each time the uppermost PCB P is picked up and transferred. Ascending by the height of the chapter. That is, as shown in FIG. 20, the power of the drive motor 286 is transmitted to the ball screw 283 through the belt 289 to guide the elevating member 285 to the plurality of guide bars 284. It is to be raised by a predetermined height.

On the other hand, of the PCB (P) loaded on the PCB loading plate 210 and both sides are supported by the vertical moving plate 220 and the guide plate 310, the uppermost PCB (P) is the second bracket ( The alignment cylinders 311 and 312 are fixed to the correct position by the 327, 328, respectively.

When the loading signal of the PCB P is applied in this state, the power of the driving motor 231 is transmitted to the driving pulley 241 through the first belt 243, and the driving pulley 241 and the driven pulley ( The second belt 244 connecting the 242 is driven. At this time, since the slider 232 coupled to the PCB transfer means is fixed to the second belt 244, the slider 232 is guide rail 245 according to the movement of the second belt 244. 246) will be guided to move. Since the slider 232 is coupled to the guide rails 245 and 246 via the guide shoes 247 and 248, the movement of the slider 232 is further smoothed.

By moving the slider 232, each vacuum cylinder 234 of the PCB moving means is positioned directly above the uppermost PCB P, and in this state of the solenoid unit 270 for controlling the vacuum pressure source. By operating the vacuum cylinder 234 by driving, the piston rod 267 of each vacuum cylinder 234 is lowered and raised, and a vacuum is supplied to suck the PCB P to each adsorber 268.

Thereafter, the slider 232 is moved toward the tester main body 100 by driving the driving motor 231 again, and the PCB P is directly on the jig 10 supported by the tester main body 100. At the moment, the driving of the driving motor 231 is stopped and a signal is sent to the vacuum cylinder 234 to place the PCB P on the upper side of the jig 10. At this time, as described above, the PCB (P) placed on the jig 10 by controlling the main solenoid 271 and the auxiliary solenoid 275 so that air is discharged from the lower end of the vacuum cylinder 234 to break the vacuum. This will prevent the departure of.

In this way, the PCB transfer means having the uppermost PCB (P) on the jig 10 is returned to the initial state by the reverse drive of the slider 232 to prepare for the next operation, the lifting plate of the tester body 100 ( 150 is lowered by the driving of the driving cylinder 145, to test the amount of PCB (P), whether bad.

In this case, in the case of the single-sided PCB (P), only the jig 10 is fixed to the work base 120 to perform a test operation. In the case of the double-sided PCB (P), as shown in FIG. A separate jig 10 ′ is fixed to the jig fixing members 191 and 192 fixed to the lower surface of the 150.

As described above, in the normal test operation of the tester main body 100, the PCB P is determined to be positive or bad, and the test operation is driven by driving the PCB transfer means of the positive and bad PCB accommodating and storage unit 400. The finished PCB (P) is to be unloaded.

PCB transfer means of the above-mentioned quantity, bad PCB storage and storage unit 400 is the same as the configuration of the PCB loading unit 200, and because each of the separate quantity, only the configuration of the defective PCB loading plate 410, 420, The vacuum cylinder 234 '(shown in FIG. 4) sucks the PCB (P), which has been tested by the PCB transfer means of the PCB storage storage unit 400, if it is a good product, a good PCB storage box 401 After stopping at the upper part of the upper part), the vacuum cylinder 234 'is driven to load it onto the good PCB loading plate 410, and if it is defective, moves straighter and stops at the upper part of the defective PCB storage box 402. Afterwards, the vacuum cylinder 234 'is to be loaded on the defective PCB loading plate 420.

At this time, the positive and bad PCB loading plate 410, 420 is the same configuration as in Figures 18 to 20, so that each time one PCB (P) is loaded by lowering the height to load the next PCB (P). Get ready to do

On the other hand, the PCB automatic tester according to the present invention as described above, because the tester body 100, the PCB loading unit 200 and the defective PCB storage storage unit 400 are each formed as a separate object, among the above components If one component causes an error, only the corresponding element can be replaced immediately with another, so that the test work on the PCB (P) can be carried out continuously without interruption for a long time. Maintenance work can also be performed more easily.

As described above, the printed circuit board automatic tester according to the present invention is provided with a work base capable of fixing jiges of various sizes, having a plurality of rows of fixing holes formed at predetermined intervals, and moving up and down the work base. As the plate is raised and lowered to a predetermined height, the tester main body tests the quantity and defect of the single-sided printed circuit board or the double-sided printed circuit board, and a loading box in which a plurality of printed circuit boards are loaded on one side, and printed by vacuum suction force. Circuit board loading box Printed circuit board loading unit having a printed circuit board loading device for picking up the top printed circuit board and moving it to the jig position of the tester main body, and each storage box for storing a good or bad printed circuit board on both sides. A printed circuit board having a good and bad test operation completed by the tester main body. A printed circuit board loading and storing unit having a printed circuit board unloading device which is picked up by a suction force and moved to the good or bad printed circuit board storage box as a separate object, respectively; The printed circuit board unloading device includes a drive source, a slider linearly reciprocated by the drive source, power transmission means for transmitting power of the drive source to the slider, and a printed circuit while being fixed to the slider integrally and linearly reciprocating. A printed circuit board moving means for moving the substrate to a predetermined position, a plurality of vacuum cylinders fixed to the printed circuit board moving means for sucking or separating the printed circuit board with a vacuum suction force, and selectively supplying a vacuum pressure to the vacuum cylinder PCB size of any size is used by including each vacuum source In addition, it has the advantage of improving the general purpose of the jig by completely eliminating the need to make a separate jig, and it is possible to test not only single-sided PCB but also double-sided PCB, and to separate and arrange each component, in case of unexpected malfunction By replacing the components with other components to prevent work interruption, and to facilitate the repair and repair of the corresponding parts, and contributes to the improvement of the work efficiency greatly.

Claims (7)

A plurality of rows of fixing holes are formed at predetermined intervals, and includes a work base for fixing jigs of various sizes, and a lifting plate is lowered to a predetermined height on the upper side of the work base, so that a single-sided printed circuit board or a double-sided printed circuit A tester body for testing the quantity and defect of the substrate; and, A printed circuit board loading device having a loading box for loading a plurality of printed circuit boards on one side thereof and picking up the printed circuit board at the top of the printed circuit board loading box with a vacuum suction force and moving it to the jig position of the tester main body. A circuit board loading unit; Each side is provided with a storage box for storing both positive and bad printed circuit boards, and the tester body picks up the printed circuit board on which the positive and bad test operation is completed by vacuum suction force and transfers the positive or bad printed circuit board to the storage box. A good and bad printed circuit board storage and storage unit having a circuit board unloading device; The printed circuit board loading device and the printed circuit board unloading device, Drive source, A slider linearly reciprocated by the drive source, Power transmission means for transmitting power of the drive source to a slider; It is fixed to the slider integrally and reciprocates linearly to reduce the printed circuit board A printed circuit board moving means for moving positively; A plurality of vacuum cylinders fixed to the printed circuit board moving means to suck or separate the printed circuit board with a vacuum suction force; Printed circuit board automatic tester comprising a vacuum pressure source for selectively supplying a vacuum pressure to the vacuum cylinder, respectively. The method of claim 1, wherein the printed circuit board moving means, A guide bar clamp fixed to an end of the slider, Guide bars fixedly coupled to both side ends of the guide bar clamp, An end cap coupled and fixed to an end of the guide bar; Two pairs of guide rail brackets fixedly coupled to both sides of the guide bar; Guide rails are fixed to each of the guide rail bracket to maintain a predetermined long hole, A printed circuit board automatic tester comprising a plurality of cylinder brackets fixed to the guide rail and fixed to the vacuum cylinder at predetermined portions, respectively. The method of claim 2, wherein the cylinder bracket is a long hole for adjusting the length and angle Each of which is formed, the printed circuit board automatic tester, characterized in that the fixed position is fixed by the fixing bolt and nut penetrated through the long hole of the long hole and the guide rail. The at least one distance sensing sensor of claim 3, wherein the predetermined portion of the cylinder bracket detects a distance to a printed circuit board supported by a vacuum cylinder and generates an emergency signal when the printed circuit board falls. Printed circuit board automatic tester, characterized in that provided with. The vacuum cylinder of claim 1, wherein three lines of hoses are connected to the vacuum cylinders and the solenoid units for controlling the flow of air, and one of the lines is installed to pass through an auxiliary solenoid communicating with the solenoid units. When the printed circuit board is placed on the jig by using a solenoid unit to block the vacuum pressure and to drive the auxiliary solenoid to blow air from the end of the vacuum cylinder. According to claim 1, wherein each of the predetermined portions on both sides of the printed circuit board loading unit The first bracket is fixed to each other to form a right angle to surround the printed circuit board, the second bracket is formed in each of the long holes in the longitudinal direction to the first bracket is fixed so that the position can be adjusted by a fastener and a nut, Alignment cylinders supporting both sides of the printed circuit board are fixed to a predetermined portion of the second bracket, and configured to accurately position the best printed circuit board waiting to move on the loading plate by driving the alignment cylinder. Printed circuit board automatic tester. The automatic printed circuit board tester according to claim 1, wherein the PCB loading unit is provided with a touch screen controller that controls the overall work by the operator touching the surface lightly.