CN111044884A - Identification system for circuit board V-CUT - Google Patents
Identification system for circuit board V-CUT Download PDFInfo
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- CN111044884A CN111044884A CN201911415845.6A CN201911415845A CN111044884A CN 111044884 A CN111044884 A CN 111044884A CN 201911415845 A CN201911415845 A CN 201911415845A CN 111044884 A CN111044884 A CN 111044884A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
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Abstract
The invention relates to the technical field of circuit board production equipment, and provides an identification system for a circuit board V-CUT, which aims to solve the problem that the detection omission easily occurs when the V-CUT cutting condition on the circuit board is detected in a manual detection mode at present; the detection mechanism comprises a detection circuit, a drive plate and a placing plate, wherein two ends of the detection circuit are respectively provided with a conductive detection piece, and the detection circuit also comprises an alarm module used for sending an alarm when the detection circuit is switched on; the detection circuit is arranged on the drive plate, the drive plate is connected with the placing plate through the drive rod, and the drive plate can reciprocate up and down along the drive rod. The invention can avoid the condition of missing detection and improve the yield of the circuit board.
Description
Technical Field
The invention relates to the technical field of circuit board production equipment, in particular to an identification system for a circuit board V-CUT.
Background
The printed circuit board is also called PCB board, which uses insulating board as base material, and is cut into a certain size, and at least one conductive pattern is attached on it as base board, and the upper portion of the base board is equipped with holes (for example, mounting holes of component hole, fastening hole and metal hole), and can be used for replacing the chassis of electronic component of previous device, and the electric connection between component pins can be implemented by means of conductive pattern, welding disk and metallized through hole on the base board. After the printed circuit board is formed, the board with the technical edge needs to be subjected to V-CUT cutting so as to be convenient for board separation after the components are packaged. Therefore, in order to improve the yield of the circuit board, after the V-CUT is finished, the V-CUT needs to be checked, and the condition of V-CUT leakage is discovered and reworked, so that the condition of V-CUT leakage is avoided.
However, at present, the V-CUT condition is usually tested by manual visual inspection. Therefore, on the one hand, the probability of missed detection and false detection is high, and on the other hand, the rework rate of the missed detection and the false detection is increased, so that the workload of workers is increased to a great extent, the production efficiency of the circuit board is reduced, and the quality of the circuit board cannot be guaranteed.
Disclosure of Invention
The invention aims to provide an identification system for a circuit board V-CUT, which aims to solve the problem that the detection is easy to miss when the manual detection mode is adopted for detecting the V-CUT cutting condition on the circuit board at present.
The basic scheme provided by the invention is as follows: the identification system for the V-CUT of the circuit board comprises a marking module, a marking module and a control module, wherein the marking module is used for marking a test wire on the circuit board, the test wire comprises a test line and test points at two ends of the test line, and the test wire passes through a preset V-CUT position;
the detection mechanism comprises a detection circuit, a drive plate and a placing plate, wherein two ends of the detection circuit are respectively provided with a conductive detection piece, and the detection circuit also comprises an alarm module used for sending an alarm when the detection circuit is switched on; the detection circuit is arranged on the drive plate, the drive plate is connected with the placing plate through the drive rod, and the drive plate can reciprocate up and down along the drive rod.
The basic scheme has the working principle and the beneficial effects that: compared with the existing inspection mode, in the scheme, the circuit board is marked firstly, then the circuit board is subjected to V-CUT, the marked circuit board is detected by using a detection mechanism, during detection, the marked circuit board is placed on a placing plate, two test points on the circuit board correspond to detection pieces of a detection circuit on a driving plate, after the driving plate descends, the test points contact the detection pieces, the detection pieces are conductive, so that a test lead is connected into the detection circuit after the test points contact the detection pieces, if the circuit board is subjected to V-CUT, the test lead passing through the V-CUT position can be excessively CUT in the V-CUT process, and at the moment, the detection circuit is not conducted; if the circuit board is not subjected to V-CUT, the test lead passing through the V-CUT position cannot be CUT off, the detection circuit is conducted at the moment, the alarm module sends an alarm to remind a worker to rework the circuit board, and automatic detection of the V-CUT condition of the circuit board is realized through the matching of the detection mechanism and the marking module, so that the detection effect is improved, the condition of missed detection is avoided, and the yield of the circuit board is improved.
The first preferred scheme is as follows: preferably, the placing plate is provided with a limiting groove. Has the advantages that: in order to guarantee that the detection process is carried out smoothly, the test point on the circuit board is required to be opposite to the detection piece on the detection mechanism, and the worker is required to align the test point with the detection piece of the detection mechanism when the circuit board is placed on the placing plate.
The preferred scheme II is as follows: preferably, a safety switch for controlling the energization of the detection circuit is arranged on the side surface of the driving plate. Has the advantages that: considering when not using detection mechanism, if detection circuitry is in the on-state always this moment, then probably can make alarm module send the police dispatch newspaper after detection circuitry contacts with other conducting material, therefore in this scheme, set up the safety switch in the side of drive plate after, when need not using detection mechanism, close safety switch, disconnection detection circuitry avoids alarm module to take place the alert phenomenon of wrong report on the one hand, and on the other hand has also avoided the waste of power.
The preferable scheme is three: preferably, the collecting device further comprises a collecting mechanism, the collecting mechanism is located on one side of the placing plate and comprises a collecting box, and one side of the collecting box is abutted to the placing plate. Has the advantages that: in this scheme, set up and collect the mechanism and collect the circuit board through detecting, place the board and offset the back with the collecting box, after the circuit board passes through the detection, can directly push the circuit board to the collecting box on can, easy operation.
The preferable scheme is four: preferably, the detection means further includes an indicator lamp that is turned on when the detection circuit is turned on. Has the advantages that: considering that the sent alarm may not be heard when the surrounding environment is changed to be noisy, the detection mechanism in the scheme is further provided with an indicator lamp, and when the circuit board detects that the circuit board is not driven by the V-CUT, the indicator lamp is lightened, so that the working personnel are warned, and the warning effect is further ensured.
The preferable scheme is five: the system preferably further comprises a counting module for counting the number of times of sending the alarm and obtaining an alarm statistic value. Has the advantages that: in the scheme, the counting module is further arranged for counting the times of sending the alarm, and the obtained alarm counting value also represents the times of reworking, so that management personnel can conveniently evaluate the success rate of the V-CUT process.
The preferable scheme is six: preferably, the system further comprises a storage module for storing a statistical threshold; a comparison module for comparing the alarm statistic with a statistic threshold; and the prompting module is used for sending prompting information when the alarm statistic value is larger than the statistic threshold value.
Has the advantages that: in the scheme, when the alarm statistic value is greater than the statistic threshold value, the prompt module sends prompt information to remind a manager to check the V-CUT equipment, so that the phenomenon of massive rework is avoided.
The preferable scheme is seven: preferably, the system further comprises a resetting module for resetting the alarm statistic value. Has the advantages that: considering that even if the V-CUT equipment is in a normal state, in the long-term use process, the accumulated alarm frequency always exceeds the statistical threshold value, and in this way, the situation of error prompt is easy to occur.
The preferable scheme is eight: preferably, the counting module is further configured to count the number of times of sending the prompt information, generate a prompt statistic value, and the storage module stores the prompt statistic value. Has the advantages that: in the scheme, the times of sending the prompt information are counted, the obtained statistic value indicates the times of overhauling the V-CUT, a manager can know the overhauling frequency of the V-CUT equipment by looking up the prompt statistic value, if the detection frequency is too high, the fact that the fault of the V-CUT equipment can be eliminated and needs to be replaced can be indicated, and therefore the normal operation of the V-CUT operation is guaranteed.
The preferable scheme is nine: preferably, a status indication module is further disposed on a side surface of the driving board, and is configured to indicate an on/off status of the safety switch, and when the safety switch is in an on status, the status indication module is activated. Has the advantages that: considering that the detection circuit is in a power-off state when the safety switch is in a disconnected state, if the circuit board is detected, the circuit board without the V-CUT is immediately detected, and the alarm module does not send an alarm and does not play a detection role, so that the scheme is also provided with a state indication module for indicating the state of the safety switch, and the accuracy of a detection result of the detection mechanism is ensured.
Drawings
FIG. 1 is a front view of a detection mechanism in an embodiment of an identification system for a circuit board V-CUT in accordance with the present invention;
FIG. 2 is a top view of a circuit board of a first embodiment of an identification system for a circuit board V-CUT in accordance with the present invention;
FIG. 3 is an enlarged view of FIG. 2 at the test lead;
FIG. 4 is a block diagram of a detection mechanism in an embodiment of the identification system for the circuit board V-CUT according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the test device comprises a rack 1, a placing plate 11, a placing groove 110, a driving plate 13, a test piece 15, a safety switch 131, a state indicating module 133, a circuit board 2, a test wire 3, a test wire 33 and a test point 31.
Example one
Substantially as shown in figure 1: the identification system for the circuit board 2V-CUT comprises a marking module, a marking module and a control module, wherein the marking module is used for marking a test lead 3 of the circuit board 2, the test lead 3 comprises a test line 33 and test points 31 at two ends of the test line 33, and the test lead 3 passes through a preset V-CUT position;
the detection mechanism comprises a detection circuit, a drive plate 13, a placing plate 11 and an indicator light, as shown in fig. 1, the drive plate 13 and the placing plate 11 are installed on a rack 1, the placing plate 11 is fixedly arranged on the rack 1, the drive plate 13 slides with the rack 1, an elastic part is arranged between the drive plate 13 and the placing plate 11, the upper end of the elastic part is connected with the lower surface of the drive plate 13, the lower end of the elastic part is connected with the upper surface of the placing plate 11, specifically, the elastic part can adopt a pressure spring, conductive detection parts are respectively arranged at two ends of the detection circuit, the detection parts are metal sheets, the detection circuit further comprises an alarm module for sending an alarm when the detection circuit is switched on, the indicator light is turned on when the detection circuit is switched on, the specific alarm module is a horn, and the indicator light is a red LED lamp bead; the detection circuit is arranged on the driving plate 13, the driving plate 13 is connected with the placing plate 11 through the driving rod, and the driving plate 13 can reciprocate up and down along the driving rod;
as shown in fig. 4, the detection mechanism further includes a counting module, configured to count the number of times of sending an alarm and obtain an alarm statistic;
the storage module stores a statistical threshold;
a comparison module for comparing the alarm statistic with a statistic threshold;
the prompting module is used for sending prompting information when the alarm statistic value is larger than the statistic threshold value;
the resetting module is used for resetting the alarm statistic value;
the counting module is also used for counting the times of sending the prompt information and generating a prompt statistic value, and the storage module stores the prompt statistic value;
the placing plate 11 is provided with a limiting groove; a safety switch 131 for controlling the electrification of the detection circuit is arranged on the side surface of the driving plate 13;
the side of the driving board 13 is further provided with a status indication module 133 for indicating the on-off status of the safety switch 131, when the safety switch 131 is in the on status, the status indication module 133 is started, and the status indication module 133 is a green LED lamp bead in this embodiment.
The specific implementation process is as follows: marking a circuit board 2 to be subjected to V-CUT, placing the position, needing the V-CUT, on the circuit board 2 below a marking module when marking, and marking the circuit board 2 by utilizing the marking module, wherein a marked test lead 3 is shown in figure 2.
After marking is finished, the circuit board 2 which is marked is placed in the placing groove 110 of the placing plate 11, then the safety switch 131 is closed, the state indicating module 133 is started, the detection circuit is powered on, the driving plate 13 is applied with force, the driving plate 13 descends along the rack 1, in the descending process of the driving plate 13, the testing piece 15 of the detection circuit is in contact with the testing point 31 on the circuit board 2, and the testing lead 3 is connected into the detection circuit.
When the circuit board 2 is not subjected to V-VCUT, the test wire 33 is not cut, so that after the test lead 3 is connected to the detection circuit, the detection circuit is conducted, the alarm module sends an alarm, and meanwhile, the indicator light is lightened to inform a worker to rework the circuit board 2; when the circuit board 2 is CUT by the V-CUT, the test wire 33 is CUT off, as shown in fig. 3, at this time, even if the test wire 3 is connected into the detection circuit, the detection circuit is broken, the alarm module is not powered on, no alarm is sent, the indicator light is not lighted, and the circuit board 2 passes the detection.
In the process of detecting the circuit board 2, the counting module counts the times of sending the alarm, and the obtained alarm statistic value also represents the times of reworking. Setting a statistical threshold value stored in a storage module as X, setting an alarm statistical value as Y, and when Y is larger than X, sending prompt information by a prompt module to remind a manager to check the V-CUT equipment; the counting module is also used for counting the times of sending the prompt information to obtain a prompt statistic value so as to prompt the timely replacement of the V-CUT equipment.
After the detection work of a batch of circuit boards 2 is completed, the alarm statistic value is reset by using the reset module, and X is reset to 0.
Example two
The difference with the first embodiment lies in that, the scheme is further provided with a collecting mechanism, the collecting mechanism is located on one side of the placing plate 11, the collecting mechanism comprises a collecting box, and one side of the collecting box is abutted to the placing plate 11.
Set up and collect the mechanism and collect circuit board 2 through detecting, place board 11 and the collecting box counterbalance back, after circuit board 2 through detecting, can directly push circuit board 2 into on the collecting box can, easy operation.
EXAMPLE III
Consider when the PCB board is placed, stack the warehouse with whole case's mode usually, when needing, take out whole case's PCB board back in the warehouse, carry out follow-up processing again, because the PCB board is stored with the mode of stacking, the stability that the action of taking of irregularity makes the PCB board stack weakens, receives slight vibration, the condition that the PCB board dropped appears easily, the condition that the PCB board damaged also appears easily.
The present embodiment is different from the first and second embodiments in that: the system also comprises a supervision subsystem, an identity verification terminal and a plurality of monitoring terminals. The identity authentication terminal is arranged at the gate of the warehouse, and warehouse management personnel can open the warehouse to take goods only after passing the authentication. The monitoring terminals are arranged in the warehouse and are respectively arranged in a plurality of directions of the warehouse and used for shooting storage videos for stacking the PCB.
The identity verification terminal is used for obtaining identity information of the stock management personnel for verification, generating a verification signal when the verification is successful, and uploading the verification signal to the supervision subsystem.
The supervision subsystem comprises a monitoring control module, a behavior recognition module, a stacking early warning module, a comparison module and a reminding module.
And the monitoring control module is used for controlling the starting of the monitoring terminal when receiving the verification signal.
The monitoring terminal is used for collecting storage videos containing stacked PCB boards in the warehouse and uploading the storage videos to the supervision subsystem in real time. In this embodiment, the number of the monitoring terminals is four, and the monitoring terminals are respectively used for shooting images of the front side, the left side, the right side and the rear side of the stacked PCB.
The basic identification module is used for receiving the storage video, carrying out image identification on the storage video, marking the storage video when identifying the storage manager, and sending the marked storage video to the behavior identification module. In the embodiment, the number of the stored videos is four, and when the left side and the right side of the custody staff are completely overlapped with the stacked PCB in any group of the stored videos, the group of videos are marked as front-side images; when any group of stored videos has the same picture with the stacked PCB, and the left side and the right side of the warehouse manager do not overlap with the stacked PCB, the group of videos are marked as left and right images, and the left and right images are at most two groups.
The behavior recognition module is used for receiving the storage video, performing image recognition on the storage video, recognizing the actions of the storage management personnel when the storage management personnel are recognized, and marking the collection boxes stacked in the PCB according to recognition results. The identification result is a collection box which predicts the removal of the warehouse keeper from the stacked PCB.
The stack early warning module is preset with an analysis model, and in the embodiment, the behavior analysis model adopts a BP neural network model. The stacking early warning module is used for inputting the marked collection boxes and the storage videos in four directions into the analysis module, outputting the stability results generated according to the marked collection boxes and the storage videos in four directions in the analysis module, wherein the stability results comprise stable structures and unstable structures, and the stability results are sent to the comparison module.
The comparison module is used for receiving the stored video, carrying out image recognition on the stored video, comparing the collecting box with the marked collecting box when a warehouse manager is identified to take away the collecting box for stacking the PCB, generating a predicted consistent signal when the collecting box and the marked collecting box are the same collecting box, generating a reminding signal when a stability result with an unstable structure is received, and sending the reminding signal to the reminding module; and the stacking early warning module is also used for updating the marked collecting box into the collecting box when the two collecting boxes are different collecting boxes, and sending the marked collecting box to the stacking early warning module.
The reminding module is used for receiving reminding signals and sending out reminding to the warehouse manager.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Identification system for a circuit board V-CUT, characterized in that: the test device comprises a marking module, a detection module and a control module, wherein the marking module is used for marking a test wire on a circuit board, the test wire comprises a test wire and test points at two ends of the test wire, and the test wire passes through a preset V-CUT position;
the detection mechanism comprises a detection circuit, a drive plate and a placing plate, wherein two ends of the detection circuit are respectively provided with a conductive detection piece, and the detection circuit also comprises an alarm module used for sending an alarm when the detection circuit is switched on; the detection circuit is arranged on the driving plate, the driving plate is connected with the placing plate through the driving rod, and the driving plate can reciprocate up and down along the driving rod.
2. Identification system for a circuit board V-CUT according to claim 1, characterized in that: the placing plate is provided with a limiting groove.
3. Identification system for a circuit board V-CUT according to claim 1, characterized in that: and a safety switch for controlling the electrification of the detection circuit is arranged on the side surface of the driving plate.
4. Identification system for a circuit board V-CUT according to claim 1, characterized in that: the collecting mechanism is positioned on one side of the placing plate and comprises a collecting box, and one side of the collecting box is abutted to the placing plate.
5. Identification system for a circuit board V-CUT according to claim 1, characterized in that: the detection mechanism further comprises an indicator light, and the indicator light is lightened when the detection circuit is conducted.
6. Identification system for a circuit board V-CUT according to claim 1, characterized in that: the system also comprises a counting module which is used for counting the times of sending the alarm and obtaining an alarm statistic value.
7. The identification system for a circuit board V-CUT of claim 6, wherein: the device also comprises a storage module for storing a statistical threshold value;
a comparison module for comparing the alarm statistic with the statistic threshold;
and the prompting module is used for sending prompting information when the alarm statistic value is larger than the statistic threshold value.
8. The identification system for a circuit board V-CUT of claim 7, wherein: the alarm statistic management system further comprises a resetting module used for resetting the alarm statistic.
9. The identification system for a circuit board V-CUT of claim 8, wherein: the counting module is also used for counting the times of sending the prompt information and generating a prompt statistic value, and the storage module stores the prompt statistic value.
10. Identification system for a circuit board V-CUT according to claim 3, characterized in that: the side face of the driving board is also provided with a state indicating module used for indicating the opening and closing state of the safety switch, and when the safety switch is in the opening state, the state indicating module is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415845.6A CN111044884A (en) | 2019-12-31 | 2019-12-31 | Identification system for circuit board V-CUT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911415845.6A CN111044884A (en) | 2019-12-31 | 2019-12-31 | Identification system for circuit board V-CUT |
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| CN111044884A true CN111044884A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911415845.6A Pending CN111044884A (en) | 2019-12-31 | 2019-12-31 | Identification system for circuit board V-CUT |
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Application publication date: 20200421 |