KR100679748B1 - Check device for bending printed circuit board - Google Patents

Abstract

A device for check bending of a PCB(Printed Circuit Board) is provided to prevent a scratch and a breakage of the PCB(Printed Circuit Board) and the PCB from being contaminated and damaged due to hands of a worker. In a device for check bending of a PCB, the PCB moves and is checked on a working base(110) of which one upper side is formed to be inclined higher than the other side. A supply unit includes a first driving motor(121) at one lower side of the working base(110) and a supply plate(123) driven by the first driving motor(121). A checking unit includes a checker(131) at an upper center of the working base(110) and a sensor(133) at an inner part of the other upper side of the working base(110). The checker(131) includes a slot(132) checking a bending of the PCB and the sensor(133) senses the PCB to be moved by repeatedly lighting during a certain time. A carrying out unit comprises a second driving motor at the other lower side of the working base(110), a carrying out plate driven by the second driving motor, and a stack box(145) on which the check finished PCB is stacked.

Description

PCB Bending Inspection Device {Check device for Bending Printed Circuit Board}

1 is a perspective view of a conventional PCB bending test device,

2 is a plan view of a PCB bending test apparatus according to an embodiment of the present invention,

3 is a perspective view of a PCB bending inspection apparatus according to an embodiment of the present invention,

4 is a cross-sectional view taken along line IV-IV of FIG. 3.

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

110 ... work base 111 ... weight jig

120.Supply unit 121 ... First drive motor

122 First screw rod 123 Supply plate

130 Inspector 131 Inspector

132 ... slot 133 ... sensor

140.Exporter 141.2nd drive motor

142 ... 2nd Screw Rod 143 ... Support Rod

144 ... Import 145 ... Loaded

The present invention relates to a PCB warpage inspection apparatus, and more particularly, to a PCB warpage inspection apparatus that can reduce the unnecessary labor waste and improve productivity and workability by automating the supply and export of the PCB.

Generally, a printed circuit board (PCB) is a circuit line pattern formed of a conductive material such as copper on an electrically insulating substrate, and refers to a substrate immediately before mounting an electronic component. In order to be used in electronic devices with components mounted on these PCBs, it is necessary to undergo external appearance, micro section and dimensional tests, electrical performance tests, and mechanical performance tests.

 PCB warpage test is to check the degree of warpage of the PCB surface in advance, if the surface of PCB is rough and curvature such as irregularities occurs. do.

1 is a perspective view of a conventional PCB bending test apparatus.

As shown, the conventional PCB warpage inspection apparatus 10 includes a table 11 with the top inclined and a gauge gage 12 on the top surface. The operator places the PCB to be inspected on the surface plate 11 and manually puts it in the gauge gage 12 by hand. Insert all the PCBs to be inspected and then manually remove the loaded PCBs all at once.

However, the conventional warpage inspection method of the PCB, because the manual supply and export of the PCB by the operator can be unnecessary waste of manpower, a large number of PCB is a gap gauge (Feeler gage) (12) PCB scratches and breaks occur in the process of loading and disorderly. In addition, there is a problem that contamination and damage of the PCB by the hand of the operator occurs during the supply and export of the PCB.

The present invention was created in order to solve the above-mentioned problems, by automating the supply and export of the PCB to reduce unnecessary manpower waste, improve productivity and workability, and securely inspect the PCB warpage inspection device to prevent damage to the PCB The purpose is to provide.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. In addition, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

According to the present invention, one side of the upper portion is formed to be inclined higher than the other side, the work base is moved and inspected the PCB; A supply unit including a supply plate movable by the first driving motor and the first driving motor on one side of the lower end of the work base; An inspection unit including a tester including a slot for inspecting bending of the PCB at an upper center of the work base, and a sensor for sensing a PCB that is repeatedly turned on for a predetermined time on an inner surface of the other upper side of the work base; And a carrying unit including a carrying box for loading and carrying out the inspection board and the finished PCB operated by the second driving motor and the second driving motor on the other side of the lower end of the work base.

Here, the work base may further include a weight jig (Weight jig) for sending the PCB transferred from the supply to the inspection unit one by one corner of the upper portion.

Furthermore, it is preferable that the supply plate is elevated by the rotation of the first screw rod, and the carrying plate and the loading box are lowered by the rotation of the second screw rod.

In addition, the inspector is preferably formed in a tunnel shape so that the PCB can be passed by its own weight.

In addition, the slot is preferably located on the upper lower surface of the tester.

In addition, the slot is preferably formed to be detachable to the tester.

In addition, it is preferable that the slot has a shape corresponding to the thickness direction of the PCB so that the degree of warpage of the PCB is equal to or greater than the reference value.

In addition, in response to the signal sensed by the sensor, a warning speaker or a warning light for providing a warning sound or a warning signal to the operator may be further provided.

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

Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

2 is a plan view of a PCB bending test apparatus according to an embodiment of the present invention.

Referring to the drawings, the PCB bending test apparatus according to an embodiment of the present invention, the work base 110, the supply unit 120, the inspection unit 130 and the export unit 140.

As shown, the work base 110 is formed so that one side of the upper portion is inclined higher than the other side.

The supply unit 120 includes a first driving motor 121 at one lower end of the work base 110. The first screw rod 122 is installed to be long over the central upper surface of the first driving motor 121. In addition, the first screw rod 122 is provided with a supply plate 123 on top. At this time, the supply plate 123 may be connected to the first screw rod 122 to sequentially load the PCB.

When the first driving motor 121 is driven, the first screw rod 122 connected to the first driving motor 121 is rotated. As a result, the supply plate 123 connected to the first screw rod 122 is elevated. Among the PCBs sequentially loaded in the supply plate 123, when the PCB located at the outermost side is located at the same height as the work base 110, the weight of the PCB is due to the inclination of the upper surface of the work base 110. It will move to its own weight.

3 is a perspective view of a PCB bending test apparatus according to an embodiment of the present invention, Figure 4 is a cross-sectional view according to IV-IV of FIG.

Referring to FIG. 3, a weight jig 111 may be further provided at one corner of an upper surface of the work base 110 to send PCBs transferred from a supply unit to the inspection unit one by one. The weight jig 111 catches the PCB 150 located at the top of the supply plate 123 and sends it to the inspector so that the PCB is put into the inspector 131 in a sheet. This periodically performs the above operation on each PCB in response to the speed at which the PCB rises, thereby transferring all of the sequentially loaded PCBs to the inspector 131.

The inspection unit 130 includes a tester 131 including a slot 132 and a sensor 133.

The inspector 131 is located at the center of the upper surface of the work base 110 and has a lower portion formed in a tunnel shape. On the upper lower surface of the tester 131, a slot 132 for inspecting the bending of the PCB is mounted. The slot 132 is preferably formed to be detachable to the inspector 131 to inspect the bending of the various types of PCB. This is because it is necessary to replace only the slot 132 for inspecting the bending of the PCB without replacing all the devices when inspecting the warpage of the various types of PCB, it is possible to reduce the manufacturing cost and take advantage of the price competitiveness.

Here, the slot 132 preferably has a shape corresponding to the thickness direction of the PCB so that the degree of warpage of the PCB is more than the reference value. As shown in FIG. 4, the slot 132 attached to the upper lower surface of the inspector 131 has a flat, flat shape corresponding to the PCB 150 to be inspected. Since the slot 132 corresponds to the shape of the PCB to be inspected, the PCB passes through the slot 132 if the degree of warpage is greater than or equal to the reference value, otherwise the slot 132 cannot pass through the slot 132. As described above, although the slot 132 has been described in the form of a straight line, this is for convenience of description, and the slot 132 may be mounted to the inspector 131 in the form of a pinhole connection and may be inspected. Depending on the shape of the PCB it may be a form with irregularities. That is, the slot 132 may have various shapes corresponding to the PCB. This is, of course, can be changed or modified by those skilled in the art as appropriate.

The sensor 133 is mounted on the other inner surface of the upper portion of the work base 110 and detects a PCB that is repeatedly turned on and moves for a predetermined time. In response to the signal sensed by the sensor 133, a warning speaker or warning light for providing a warning sound or warning signal to the operator may be further provided.

Here, the PCB transferred from the supply unit 120 is moved by its own weight and passes through the tester 131 due to the inclination from one side of the working base 110 to the other side. This moves the PCB without using a conveyor belt or the like, thereby reducing power consumption.

The PCB passing through the tester 131 is moved to the other end of the upper surface of the work base 110 by its own weight, and the sensor 133 detects the movement of the PCB passing through the upper surface. .

When the PCB does not pass through the checker 131, the sensor 133 is delayed (delay) the PCB, even after a certain time does not pass through the upper surface of the sensor 133 does not detect the movement of the PCB, A signal is sent to the control unit of the present device, which temporarily stops all operation of the components of the present invention. At this time, the sensor 133 expresses the detected signal to the outside by a warning speaker or a warning lamp (not shown), and the worker separates the defective article by this indication.

In addition, even when the PCB to be inspected has passed all of the checker 131, since the PCB does not pass through the upper surface of the sensor 133 even after a predetermined time, the signal detected by the sensor 133, warning speakers or warning lights Expressed externally, the operator can know that the inspection is completed by this indication.

As shown in FIG. 2, the carrying out unit 140 may have a structure similar to that of the supply unit 120.

The carrying out unit 140 includes a second driving motor 141 at the lower end of the other side of the working base 110. A second screw rod 142 is installed on the center upper surface of the second driving motor 141. In addition, the second screw rod 142 is provided with a carrying plate 144 connected to one side of the working base 110 side. Here, the loading box 145 is provided on the upper portion of the carrying plate 144.

As shown in FIG. 2, the loading box 145 has a structure in which the PCBs to be inspected are sequentially stacked in a letter shape. This is to ensure that the PCB passing through the inspector 131 is loaded in order and safely loaded so that the PCB does not go out. Thus, scratches and breakage of the PCB can be prevented.

In addition, a support rod 143 is installed between the second screw rod 142 and the connection portion of the carrying plate 144. This is to support the export board 144 and the loading box 145 because a large amount of force is applied when the PCB is sequentially loaded in the loading box 145 on the upper side of the carrying plate 144.

When the second driving motor 141 is driven, the second screw rod 142 connected to the second driving motor 141 is rotated, and as a result, the carrying plate connected by the second screw rod 142 is rotated. 144 is lowered. At this time, the PCB, which has moved to the other end of the work base 110 by its own weight, is transferred to the loading box 145 on the upper side of the carrying plate 144 and descends while the PCB is sequentially loaded.

Hereinafter, with reference to the accompanying drawings the movement sequence for the PCB bending test according to an embodiment of the present invention will be described in detail.

First, after sequentially placing the PCB in the supply plate 123 of the supply unit 120, the PCB warpage inspection apparatus 100 of the present invention is operated. At this time, the first driving motor 121 is operated, the first screw rod 122 is rotated, and the connected supply plate 123 is elevated. While being lifted, the outermost PCB 150 is moved to the upper surface of the work base 110 by the weight jig 111 and passes through the slot 132 of the inspector 131 by its own weight. . The PCB passing through the slot 132 passes through the sensor 133 of the inspection unit 130 and moves to the carrying out unit 140 of the inspection unit 130. At this time, the second driving motor 141 is activated, the second screw rod 142 is rotated, the connected carrying plate 144 and the loading box 145 of the upper carrying plate 144 is lowered. And the PCB passed through the inspection unit 130 is sequentially loaded in the loading box 145 of the carrying out unit 140. That is, the PCBs in the supply plate 123 of the supply unit 120 are all loaded into the loading box 145 of the carrying out unit 140 after the bending test is finished and then carried out. PCB which has moved all the processes of the PCB warpage inspection apparatus 100 of the present invention is determined to be good, and is transferred to the post-process. On the other hand, the PCB that has not passed through the slot 132 of the inspector 131 is judged to be defective by the sensor 133, and is sent to a Baking process that heats the temperature to homogenize the structure to remove the warpage or irregularities. give. The PCB from which curvature such as warpage or unevenness is removed is sent to the warpage inspection apparatus 100 of the present invention again, and retests the warpage, so that only the passed PCB is transferred to the next step.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalent claims.

 According to the present invention, since the PCB warpage inspection device is automated supply and export so that the warpage inspection of the PCB can be made simply and conveniently, unnecessary waste of manpower can be reduced and productivity and workability can be improved.

In addition, it is possible to prevent the PCB scratches and damage, and to prevent contamination and damage of the PCB by the operator's hand.

In addition, since the PCB is moved by its own weight, the power consumption can be reduced, the device configuration is very simple, the manufacturing cost can be reduced, and installation in a narrow space has no advantage of space limitation.

Claims (8)

One side of the upper portion is formed to be inclined higher than the other side, and a work base on which the PCB is moved and inspected; A supply unit including a supply plate movable by the first driving motor and the first driving motor on one side of the lower end of the work base; An inspection unit including a tester including a slot for inspecting bending of the PCB at an upper center of the work base, and a sensor for sensing a PCB that is repeatedly turned on for a predetermined time on an inner surface of the other upper side of the work base; And And a carry-out unit including a carrying box for loading and carrying out a test board on which the second driving motor and the second driving motor are operated by the second driving motor on the other side of the lower end of the work base. The method of claim 1, The work base PCB warpage inspection apparatus further comprises a weight jig (Weight jig) for sending the PCB transferred from the supply to the inspection unit one by one corner of the upper portion. The method of claim 1, A first screw rod connected to a center upper surface of the first driving motor and rotating in conjunction with driving of the first driving motor; And And a second screw rod connected to a center upper surface of the second driving motor to rotate in conjunction with driving of the second driving motor. The supply plate is connected to the first screw rod is elevated by the rotation of the first screw rod, the carrying plate and the loading box is connected to the second screw rod is lowered by the rotation of the second screw rod, characterized in that PCB warpage inspection device. The method of claim 1, The inspection device is a PCB bending test device, characterized in that formed in a tunnel shape so that the PCB can pass through by its own weight (self-weight). The method of claim 4, wherein The slot, PCB bending test apparatus, characterized in that formed on the upper lower surface of the inspector. The method of claim 5, The slot, PCB bending inspection apparatus, characterized in that formed to be detachable to the inspector. The method of claim 6, And the slot has a shape corresponding to the thickness direction of the PCB such that the degree of warpage of the PCB is equal to or greater than a reference value. The method of claim 1, In response to the signal sensed by the sensor, PCB warpage inspection apparatus further comprising a warning speaker or a warning light, for providing a warning sound or a warning signal to the operator.

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