CN104181458A - Detection method and device for PCBA board - Google Patents
Detection method and device for PCBA board Download PDFInfo
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- CN104181458A CN104181458A CN201410425065.0A CN201410425065A CN104181458A CN 104181458 A CN104181458 A CN 104181458A CN 201410425065 A CN201410425065 A CN 201410425065A CN 104181458 A CN104181458 A CN 104181458A
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Abstract
The invention discloses a detection method and device for a PCBA board of an infrared tube touch frame. When detection is conducted according to the method, the short circuit condition and the open circuit condition of internal modules of the PCBA board can be detected firstly, and when some internal modules of the PCBA board are not connected in the static state and signals can not be continuously transmitted, closed circuits can be formed by triggering the internal modules which are not connected in the static state in the to-be-detected PCBA board through the detection device, and therefore the aims of short circuit detection and open circuit detection are achieved. According to the method, short circuits or closed circuits between insertion pins inside the to-be-detected PCBA board can be detected, for example, some closed circuits, should not be formed, formed when tin connection appears in the product machining process, and therefore functions of the PCBA board can not be influenced.
Description
Technical field
The present invention relates to field of circuit boards, relate in particular to detection method and pick-up unit that a kind of infrared tube touches the PCBA plate of frame.
Background technology
Existing infrared tube touches in frame PCBA making, generally adopts encapsulation technology to touch frame PCBA to infrared tube and encapsulates.But along with infrared tube touches the integrated degree of frame PCBA, uprise, detect its quality also more and more difficult.
Present detection mode is to depend on artificial visually examine, or does not check, while assembling in rear end, detects during by functional test, and this detection mode inefficiency, easily exists undetectedly, and defective products is sneaked in finished product, and product quality is had to impact.Words if there is short circuit or breaking phenomena for the address wire of PCBA can not detect bad by follow-up Function detection, this can have impact to the effect of product, but test effect that can not be very meticulous during production test, therefore undetected probability is very large.
Summary of the invention
The embodiment of the present invention provides a kind of infrared tube to touch detection method and the pick-up unit of the PCBA plate of frame, comprising:
Step 1: pick-up unit detects the contact pin pin of PCBA plate to be measured, the detection mode of judgement contact pin pin be directly to connect detect or indirectly connect detection, and by direct connection detection mode or indirectly connect detection mode and detect all contact pin pins of PCBA plate to be measured;
Step 2: when pick-up unit detects the direct connection of the contact pin pin employing detection mode of module to be checked, pick-up unit is inputted the first pulse signal to the input end contact pin pin of described module to be checked, and can pick-up unit judgement receive the first pulse signal at the output terminal contact pin pin of described module to be checked;
Step 3: pick-up unit receives the first pulse signal at the output terminal contact pin pin of described module to be checked, whether the contact pin pin not simultaneously being electrically connected to described module to be checked on pick-up unit decision logic receives the first pulse signal;
Step 4: pick-up unit receives the first pulse signal at the output terminal contact pin pin of described module to be checked, pick-up unit does not detect the first pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, described module to be checked meets the requirements, and returns to step 1;
Step 5: pick-up unit receives the first pulse signal at the output contact pin pin of described module to be checked, pick-up unit receives the first pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, between the inside contact pin pin of PCBA plate to be measured, there is short circuit, pick-up unit records the contact pin pin of short circuit store, and returns to step 1;
Step 6: when the contact pin pin that detects module to be checked when pick-up unit according to step 2 adopts and directly to connect detection mode, input end contact pin pin to described module to be checked is inputted the first pulse signal, pick-up unit does not receive the first pulse signal at the output terminal contact pin pin of described module to be checked, described inside modules to be checked has and opens circuit, detection device records also stores the information of described module to be measured, returns to step 1;
Step 7: when the contact pin pin that detects module to be checked when pick-up unit according to step 1 adopts and indirectly to connect detection mode, pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, simultaneously to described indirect module input start pulse signal to be checked, trigger described indirect module to be checked, make input end and the output terminal conducting of described indirect module contact pin pin to be checked, can pick-up unit receive the second pulse signal according to the output terminal contact pin pin in described indirect module to be checked, judge whether described indirect module to be checked meets the requirements, and the testing result of described indirect module to be checked is recorded and stored.
Preferably, before described step 1, also comprise: PCBA plate to be measured is docked with pick-up unit, and pick-up unit reads PCBA board parameter to be measured, determines the type of PCBA plate to be measured;
The type of determining described PCBA plate to be measured comprises transmitting PCBA plate and receives PCBA plate.
Preferably, pick-up unit judges with the sensing module that docks of pick-up unit docking section whether PCBA plate to be measured docks according to being arranged on PCBA plate to be measured.
Preferably, described step 7 method also comprises:
Pick-up unit receives the first pulse signal at the output terminal contact pin pin of described indirect module to be checked, and whether the contact pin pin of other modules that are not simultaneously electrically connected to described indirect module to be checked on pick-up unit decision logic receives the second pulse signal;
Pick-up unit receives the second pulse signal at the output terminal contact pin pin of described indirect module to be checked, pick-up unit does not receive the second pulse signal of the contact pin pin not being electrically connected to described indirect module to be checked in logic simultaneously, described indirect module to be checked meets the requirements, by the outcome record detecting storage;
Pick-up unit receives the second pulse signal at the output contact pin pin of described indirect module to be checked, pick-up unit receives the second pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, between the contact pin pin of indirect PCBA plate to be measured, have short circuit, detection device records also stores the information that has short circuit between described indirect contact pin pin to be measured.
Preferably, described step 7 method also comprises:
When pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, simultaneously to described indirect module input start pulse signal to be checked, trigger described indirect module to be checked, make input end and the output terminal conducting of described indirect module contact pin pin to be checked, pick-up unit does not receive the second pulse signal at the output terminal contact pin pin of described indirect module to be checked, described indirect inside modules to be checked has and opens circuit, and detection device records also stores the information of described indirect module to be measured.
Preferably, after described step 7, comprise:
Pick-up unit has detected after the contact pin pin of PCBA plate to be measured, according to the type of PCBA plate to be measured, select the Standard PC BA plate match with PCBA plate to be measured, by simulating, the work of normal PCBA plate detects infrared transmitting tube on PCBA plate to be measured and whether infra-red intensity and the angle of infrared receiving tube meets the requirements;
PCBA plate function information to be measured after detecting is recorded and stored.
Preferably, when PCBA plate to be measured is transmitting PCBA plate to be measured, Standard PC BA plate employing standard receives PCBA plate;
Described transmitting PCBA plate to be measured sends infrared ray by infrared transmitting tube to be measured under the control of pick-up unit;
The standard of pick-up unit receives PCBA plate and receives infrared transmitting tube to be measured and send infrared ray, detects that infrared transmitting tube to be measured sends ultrared intensity and whether angle meets the requirements, and record stores.
Preferably, when PCBA plate to be measured is reception PCBA plate to be measured, Standard PC BA plate adopts standard emission PCBA plate;
Described standard emission PCBA plate issues out standard infrared ray in the control of pick-up unit, and described reception PCBA plate to be measured receives described standard emission PCBA plate and sends standard infrared ray;
Pick-up unit receives the ultrared intensity of standard according to reception PCBA plate to be measured and whether angle meets the requirements, and record stores.
Preferably, after described step 7, also comprise:
Pick-up unit shows output by display module by the quality information of PCBA plate to be measured;
When PCBA plate to be measured does not meet quality requirements, pick-up unit starts audible alarm module, prompting user.
A kind of pick-up unit, comprise: for be connected and send to described microcontroller the docking sensing module of signal after PCBA plate to be measured connects with PCBA plate to be measured, match for detection of the Standard PC BA plate of PCBA plate function to be measured with PCBA plate to be measured, for showing the display module of the quality information of exporting PCBA plate to be measured, while not meeting quality requirements for PCBA plate to be measured, point out user's audible alarm module, for setting the parameter setting module of PCBA plate standard information and for receiving the signal of described docking sensing module, and in testing process, send the contact pin pin that pulse signal and start pulse signal are tested PCBA plate to be measured, and the microcontroller that can obtain PCBA plate quality information to be measured by parameter and the described parameter setting module canonical parameter of PCBA plate more to be measured,
Described display module is electrically connected to described microcontroller, for show the quality information of output PCBA plate to be measured according to the control of described microcontroller;
Described audible alarm module is electrically connected to described microcontroller, points out user when not meeting quality requirements according to the control of described microcontroller PCBA plate to be measured;
Described parameter setting module is electrically connected to described microcontroller, and the PCBA plate standard information of setting according to described parameter setting module for described microcontroller relatively draws PCBA plate quality information to be measured;
Described microcontroller is also for determining that described PCBA plate to be measured is transmitting PCBA plate, or reception PCBA plate;
The contact pin pin that described microcontroller is also distinguished PCBA intralamellar part module to be measured for the PCBA plate standard information of setting according to described parameter setting module is by directly connecting detection or indirectly connecting and detect.
As can be seen from the above technical solutions, the present invention has the following advantages:
Infrared tube touches frame and is comprised of a large amount of independent PCBA plates, its plug connector pins many and plug connector are also many, efficiency and yield for guaranteeing to produce, adopt method of the present invention before final assembly, to check the quality of PCBA plate can greatly promote production efficiency and the quality of complete machine.
By this method, detect, can first detect short circuit and the open circuit conditions of PCBA intralamellar part module, and in some the not conducting of internal module static state of PCBA plate, when signal cannot transmit continuously, thus pick-up unit can by trigger PCBA intralamellar part static state to be measured not conduction module make to form path and realize the object that detects short circuit and open circuit.
In the testing process of this method, can also detect short circuit or path between PCBA intralamellar part contact pin pin to be measured and contact pin pin, as occurred connecting tin in product processing, cause some should not form path, affect the function of PCBA plate.This method is from the module input input pulse signal of PCBA plate to be measured, and whether the contact pin pin that simultaneously detects the non-output terminal of this module of PCBA plate to be measured receives input pulse signal.The short circuit that detects between PCBA intralamellar part contact pin pin to be measured and contact pin pin or the function of path have been played like this.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in describing be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the overall flow figure of the detection method of PCBA plate provided by the invention;
Fig. 2 is the PCBA plate Function detection process flow diagram of the detection method of PCBA plate provided by the invention;
Fig. 3 is the radiation schematic diagram of the infrared tube of PCBA plate provided by the invention;
Fig. 4 is pick-up unit schematic diagram provided by the invention.
Embodiment
For making object of the present invention, feature, advantage can be more obvious and understandable; to use specific embodiment and accompanying drawing below; technical scheme to the present invention's protection is clearly and completely described; obviously; the embodiments described below are only the present invention's part embodiment, but not whole embodiment.Embodiment based in this patent, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of this patent protection.
The present embodiment provides a kind of infrared tube to touch the detection method of the PCBA plate of frame, refers to shown in Fig. 1,
S11: whether the docking sensing module induction of pick-up unit has PCBA plate access to be measured;
When the induction of docking sensing module has PCBA plate access to be measured, the signal that has PCBA plate access to be measured is passed to the microcontroller of pick-up unit.
S12: the microcontroller of pick-up unit reads PCBA board parameter to be measured, determines the type of PCBA plate to be measured;
In this method embodiment, the type of PCBA plate to be measured comprises transmitting PCBA plate and receives PCBA plate, before detection, microcontroller need to and receive the type that PCBA plate parameter attribute is separately distinguished PCBA plate to be measured according to transmitting PCBA plate, is convenient to like this determine follow-up detection mode.Here microcontroller distinguishes that the type of PCBA plate to be measured is according to transmitting PCBA plate and reception PCBA plate parameter attribute separately, to set in advance before detection, and microcontroller relatively can draw the type of PCBA plate to be measured according to PCBA board parameter to be measured and parameter preset.
S13: determine after the type of PCBA plate to be measured, pick-up unit starts to detect.
In this method embodiment, first detect all contact pin pins of PCBA plate to be measured, after all contact pin pins of PCBA plate to be measured have all detected, pick-up unit carries out Function detection to PCBA plate to be measured again.
S14: pick-up unit detects until all contact pin pins have all detected the contact pin pin of PCBA plate to be measured.
Whether S15: the contact pin pin that pick-up unit detects PCBA plate to be measured is that the input end by modules in PCBA plate to be measured sends pulse signal, receive the pulse signal that sends or receive the pulse signal that sends for detecting foundation at the contact pin pin of other modules according to the output terminal of corresponding module.Due to the working method of PCBA intralamellar part logical relation to be measured and module, some module is under the state not triggering, and pulse signal cannot pass through, and so just has influence on testing result.
In this method embodiment, first pick-up unit needs to judge that the detection mode of contact pin pin detects or indirectly connects and detect for directly connecting, and by direct connection detection mode or indirectly connect detection mode and detect all contact pin pins of PCBA plate to be measured.
Concrete, the detection mode of the judgement contact pin pin of pick-up unit is directly to connect detect or indirectly connect and detect, by the parameter of default PCBA plate module to be measured and connected mode in pick-up unit, the microcontroller of pick-up unit is taked directly connect detection or indirectly connect detection mode according to default parameter judgement like this.
S17: directly connect detection mode: when pick-up unit detects the direct connection of the contact pin pin employing detection mode of module to be checked, pick-up unit is inputted the first pulse signal to the input end contact pin pin of described module to be checked, and can pick-up unit judgement receive the first pulse signal at the output terminal contact pin pin of described module to be checked;
Pick-up unit receives the first pulse signal at the output terminal contact pin pin of described module to be checked, and whether the contact pin pin not simultaneously being electrically connected to described module to be checked on pick-up unit decision logic receives the first pulse signal;
In this method embodiment, the realization that the contact pin pin not being electrically connected to described module to be checked in logic refers to function in PCBA plate to be measured is comprised of the module one by one with difference in functionality and structural relation, each module has independently structure annexation, in the whole function that realizes PCBA plate to be measured, is only modules performance effect separately.When detecting contact pin pin, the module of PCBA plate to be measured need to be broken the whole up into parts, whether the quality that detects separately each module meets the requirements.Referring in logic in testing process here, module is considered as an independent unit and detects, as sends infrared module, receiving infrared-ray module etc.
In this method embodiment, be not only the quality of the single module that detects PCBA plate to be measured, also need to detect short circuit or the path between PCBA intralamellar part contact pin pin to be measured and contact pin pin.Concrete detect short circuit or the path between PCBA intralamellar part contact pin pin to be measured and contact pin pin, as occurred company's tin in product processing, cause some should not form path, affect the function of PCBA plate.This method is from the module input input pulse signal of PCBA plate to be measured, and whether the contact pin pin that simultaneously detects the non-corresponding output terminal of this module of PCBA plate to be measured receives input pulse signal.The short circuit that detects between PCBA intralamellar part contact pin pin to be measured and contact pin pin or the function of path have been played like this.
In this method embodiment, pick-up unit receives the first pulse signal at the output terminal contact pin pin of described module to be checked, pick-up unit does not detect the first pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, described module to be checked meets the requirements, and continues next module and detects;
In this method embodiment, pick-up unit receives the first pulse signal at the output contact pin pin of described module to be checked, pick-up unit receives the first pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, between the inside contact pin pin of PCBA plate to be measured, there is short circuit, also there is the information of the contact pin pin of short circuit in detection device records, here between the inside contact pin pin of PCBA plate to be measured, there is short circuit, detection device records also stores this information, after end to be detected, collect and gather demonstration, here do not do independent demonstration, can save the system resource of pick-up unit.
In this method embodiment, when pick-up unit detects the direct connection of the contact pin pin employing detection mode of module to be checked, input end contact pin pin to described module to be checked is inputted the first pulse signal, pick-up unit does not receive the first pulse signal at the output terminal contact pin pin of described module to be checked, described inside modules to be checked has and opens circuit, and detection device records also stores the information of described module to be measured.
S16: indirectly connect detection mode: pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, simultaneously to described indirect module input start pulse signal to be checked, trigger described indirect module to be checked, make input end and the output terminal conducting of described indirect module contact pin pin to be checked, can pick-up unit receive the second pulse signal according to the output terminal contact pin pin in described indirect module to be checked, judge whether described indirect module to be checked meets the requirements, and the detection architecture of described indirect module to be checked is recorded and stored.
In this law in embodiment, the implication of the first pulse signal is to adopt while directly connecting detection mode, input end contact pin pin to described module to be checked is inputted the first pulse signal, and pick-up unit judges whether to receive the first pulse signal at the output terminal contact pin pin of described module to be checked.
And the implication of the second pulse signal is to adopt while indirectly connecting detection mode, pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, and pick-up unit judges whether to receive the second pulse signal at the output terminal contact pin pin of described module to be checked.
Here first and second just in order to distinguish pulse signal, prevent ambiguity, pulse signals is not made restriction.In present specification, other part technical characterictics introduce first or second etc., be to play to distinguish technical characterictic and prevent ambiguity equally, technical characterictic is not made to restriction.
In this method embodiment, for detection of the first pulse signal that directly connects detection mode, can be 1 microsecond, or 2 microseconds, or 5 microsecond pulses, the concrete burst length does not limit here.
For detection of the second pulse signal that indirectly connects detection mode, can be 1 microsecond equally, or 2 microseconds, or 5 microsecond pulses, the concrete burst length does not limit here.But in order to distinguish the second pulse signal and the first pulse signal, can take the different burst lengths, if the first pulse signal is 2 microsecond pulses, the second pulse signal is 5 microsecond pulses.In indirectly connecting detection mode, need to input input end and the output terminal conducting that start pulse signal just can make indirect module contact pin pin to be checked.The output form of the start pulse signal is here to set according to the trigger condition of indirect module to be checked.For example: in indirect module to be checked, approach switch need to receive the start pulse signal triggering and conducting of five 6 microseconds, the start pulse signal that pick-up unit first sends five 6 microseconds makes approach switch conducting, and then making indirect inside modules conducting to be checked, pick-up unit sends the quality of the indirect module to be checked of the second pulsed test signal again.
In this method embodiment, pick-up unit receives the first pulse signal at the output terminal contact pin pin of described indirect module to be checked, and whether the contact pin pin of other modules that are not simultaneously electrically connected to described indirect module to be checked on pick-up unit decision logic receives the second pulse signal;
Pick-up unit receives the second pulse signal at the output terminal contact pin pin of described indirect module to be checked, pick-up unit does not receive the second pulse signal of the contact pin pin not being electrically connected to described indirect module to be checked in logic simultaneously, described indirect module to be checked meets the requirements, by the outcome record detecting storage;
Pick-up unit receives the second pulse signal at the output contact pin pin of described indirect module to be checked, pick-up unit receives the second pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, between the contact pin pin of indirect PCBA plate to be measured, have short circuit, detection device records also stores the information that has short circuit between described indirect contact pin pin to be measured.
When pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, simultaneously to described indirect module input start pulse signal to be checked, trigger described indirect module to be checked, make input end and the output terminal conducting of described indirect module contact pin pin to be checked, pick-up unit does not receive the second pulse signal at the output terminal contact pin pin of described indirect module to be checked, described indirect inside modules to be checked has and opens circuit, and detection device records also stores the information of described indirect module to be measured.
In this method embodiment, specifically first directly connect detection mode, or indirectly connecting detection mode does not limit, and according to the trace routine that pick-up unit is default, carries out here.
S18: pick-up unit has detected after the contact pin pin of PCBA plate to be measured, pick-up unit is used Standard PC BA plate to coordinate with PCBA plate to be measured, completes the Function detection of PCBA plate to be measured, and by the outcome record detecting storage.
S19: complete after above-mentioned trace routine, need to judge whether PCBA plate to be measured conforms to quality requirements.
S20: if PCBA plate to be measured conforms to quality requirements, pick-up unit shows output by display module by the quality information of PCBA plate to be measured.
S21: when PCBA plate to be measured does not meet quality requirements, show the quality information of PCBA plate to be measured, pick-up unit starts audible alarm module, prompting user, there is mass defect in this PCBA plate to be measured.
Whole like this testing process finishes, and pick-up unit returns to just beginning and end detected state.
In this method embodiment, also comprise and referring to shown in Fig. 2, the Function detection of PCBA plate to be measured, specifically comprises:
Determine that PCBA plate to be measured is infrared transmitting tube or infrared receiving tube, select the Standard PC BA plate match with PCBA plate to be measured, by simulating the work of normal PCBA plate, check whether infrared transmitting tube on PCBA plate and infra-red intensity and the angle of infrared receiving tube meet the requirements.
When PCBA plate to be measured is transmitting PCBA plate to be measured, Standard PC BA plate employing standard receives PCBA plate; Described transmitting PCBA plate to be measured sends infrared ray by infrared transmitting tube to be measured under the control of pick-up unit; The standard of pick-up unit receives PCBA plate and receives infrared transmitting tube to be measured and send infrared ray, detects that infrared transmitting tube to be measured sends ultrared intensity and whether angle meets the requirements, and record stores.
When PCBA plate to be measured is reception PCBA plate to be measured, Standard PC BA plate adopts standard emission PCBA plate; Described standard emission PCBA plate issues out standard infrared ray in the control of pick-up unit, and described reception PCBA plate to be measured receives described standard emission PCBA plate and sends standard infrared ray; Pick-up unit receives the ultrared intensity of standard according to reception PCBA plate to be measured and whether angle meets the requirements, and record stores.
In this method embodiment, the major function parameter of PCBA plate to be measured is infra-red intensity and angle, and concrete detection method refers to shown in Fig. 3, and infrared transmitting tube 41 sends infrared ray, infrared receiving tube receiving infrared-ray.Infra-red intensity is to measure infra-red intensity according to the power of infrared radiation.
The detection of infrared angle is the infrared ray that transmitting has certain limit according to infrared emission tube, in certain angle, can guarantee ultrared intensity, when exceeding the ultrared intensity of certain angle scope, will decay thereupon, when attenuation degree reaches infra-red intensity critical value, this angle is exactly the angle of infrared detection.The quality condition that can draw infrared angle parameter with angle and the standard angle comparison of this detection.
In the present invention, a kind of pick-up unit is provided, refer to shown in Fig. 4, comprise: for be connected and send to described microcontroller 1 the docking sensing module 2 of signal after PCBA plate 11 to be measured connects with PCBA plate 11 to be measured, match for detection of the Standard PC BA plate 12 of PCBA plate 11 functions to be measured with PCBA plate 11 to be measured, for showing the display module 5 of the quality information of exporting PCBA plate 11 to be measured, while not meeting quality requirements for PCBA plate 11 to be measured, point out user's audible alarm module 4, for setting the parameter setting module 3 of PCBA plate standard information and for receiving the signal of described docking sensing module 2, and in testing process, send the contact pin pin that pulse signal and start pulse signal are tested PCBA plate 11 to be measured, and the microcontroller 1 that can obtain PCBA plate 11 quality informations to be measured by parameter and described parameter setting module 3 canonical parameters of PCBA plate 11 more to be measured,
Described display module 5 is electrically connected to described microcontroller 1, for show the quality information of output PCBA plate 11 to be measured according to the control of described microcontroller 1;
Described audible alarm module 4 is electrically connected to described microcontroller 1, points out user when not meeting quality requirements according to the control of described microcontroller 1 PCBA plate 11 to be measured;
Described parameter setting module 3 is electrically connected to described microcontroller 1, and the PCBA plate standard information of setting according to described parameter setting module 3 for described microcontroller 1 relatively draws PCBA plate 11 quality informations to be measured;
Described microcontroller 1 is also for determining that described PCBA plate 11 to be measured is transmitting PCBA plates, or reception PCBA plate;
The contact pin pin that described microcontroller 1 is also distinguished PCBA plate 11 internal modules to be measured for the PCBA plate standard information of setting according to described parameter setting module 3 is by directly connecting detection or indirectly connecting and detect.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a detection method for PCBA plate, is characterized in that, comprising:
Step 1: pick-up unit detects the contact pin pin of PCBA plate to be measured, the detection mode of judgement contact pin pin be directly to connect detect or indirectly connect detection, and by direct connection detection mode or indirectly connect detection mode and detect all contact pin pins of PCBA plate to be measured;
Step 2: when pick-up unit detects the direct connection of the contact pin pin employing detection mode of module to be checked, pick-up unit is inputted the first pulse signal to the input end contact pin pin of described module to be checked, and can pick-up unit judgement receive the first pulse signal at the output terminal contact pin pin of described module to be checked;
Step 3: pick-up unit receives the first pulse signal at the output terminal contact pin pin of described module to be checked, whether the contact pin pin not simultaneously being electrically connected to described module to be checked on pick-up unit decision logic receives the first pulse signal;
Step 4: pick-up unit receives the first pulse signal at the output terminal contact pin pin of described module to be checked, pick-up unit does not detect the first pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, described module to be checked meets the requirements, and returns to step 1;
Step 5: pick-up unit receives the first pulse signal at the output contact pin pin of described module to be checked, pick-up unit receives the first pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, between the inside contact pin pin of PCBA plate to be measured, there is short circuit, pick-up unit records the contact pin pin of short circuit store, and returns to step 1;
Step 6: when the contact pin pin that detects module to be checked when pick-up unit according to step 2 adopts and directly to connect detection mode, input end contact pin pin to described module to be checked is inputted the first pulse signal, pick-up unit does not receive the first pulse signal at the output terminal contact pin pin of described module to be checked, described inside modules to be checked has and opens circuit, detection device records also stores the information of described module to be measured, returns to step 1;
Step 7: when the contact pin pin that detects module to be checked when pick-up unit according to step 1 adopts and indirectly to connect detection mode, pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, simultaneously to described indirect module input start pulse signal to be checked, trigger described indirect module to be checked, make input end and the output terminal conducting of described indirect module contact pin pin to be checked, can pick-up unit receive the second pulse signal according to the output terminal contact pin pin in described indirect module to be checked, judge whether described indirect module to be checked meets the requirements, and the testing result of described indirect module to be checked is recorded and stored.
2. the detection method of PCBA plate according to claim 1, is characterized in that,
Before described step 1, also comprise: PCBA plate to be measured is docked with pick-up unit, and pick-up unit reads PCBA board parameter to be measured, determines the type of PCBA plate to be measured;
The type of determining described PCBA plate to be measured comprises transmitting PCBA plate and receives PCBA plate.
3. the detection method of PCBA plate according to claim 2, is characterized in that,
Pick-up unit judges with the sensing module that docks of pick-up unit docking section whether PCBA plate to be measured docks according to being arranged on PCBA plate to be measured.
4. the detection method of PCBA plate according to claim 1, is characterized in that,
Described step 7 method also comprises:
Pick-up unit receives the first pulse signal at the output terminal contact pin pin of described indirect module to be checked, and whether the contact pin pin of other modules that are not simultaneously electrically connected to described indirect module to be checked on pick-up unit decision logic receives the second pulse signal;
Pick-up unit receives the second pulse signal at the output terminal contact pin pin of described indirect module to be checked, pick-up unit does not receive the second pulse signal of the contact pin pin not being electrically connected to described indirect module to be checked in logic simultaneously, described indirect module to be checked meets the requirements, by the outcome record detecting storage;
Pick-up unit receives the second pulse signal at the output contact pin pin of described indirect module to be checked, pick-up unit receives the second pulse signal of the contact pin pin not being electrically connected to described module to be checked in logic simultaneously, between the contact pin pin of indirect PCBA plate to be measured, have short circuit, detection device records also stores the information that has short circuit between described indirect contact pin pin to be measured.
5. the detection method of PCBA plate according to claim 1, is characterized in that,
Described step 7 method also comprises:
When pick-up unit is inputted the second pulse signal to the input end contact pin pin of described indirect module to be checked, simultaneously to described indirect module input start pulse signal to be checked, trigger described indirect module to be checked, make input end and the output terminal conducting of described indirect module contact pin pin to be checked, pick-up unit does not receive the second pulse signal at the output terminal contact pin pin of described indirect module to be checked, described indirect inside modules to be checked has and opens circuit, and detection device records also stores the information of described indirect module to be measured.
6. the detection method of PCBA plate according to claim 1, is characterized in that,
After described step 7, comprise:
Pick-up unit has detected after the contact pin pin of PCBA plate to be measured, according to the type of PCBA plate to be measured, select the Standard PC BA plate match with PCBA plate to be measured, by simulating, the work of normal PCBA plate detects infrared transmitting tube on PCBA plate to be measured and whether infra-red intensity and the angle of infrared receiving tube meets the requirements;
PCBA plate function information to be measured after detecting is recorded and stored.
7. the detection method of PCBA plate according to claim 6, is characterized in that,
When PCBA plate to be measured is transmitting PCBA plate to be measured, Standard PC BA plate employing standard receives PCBA plate;
Described transmitting PCBA plate to be measured sends infrared ray by infrared transmitting tube to be measured under the control of pick-up unit;
The standard of pick-up unit receives PCBA plate and receives infrared transmitting tube to be measured and send infrared ray, detects that infrared transmitting tube to be measured sends ultrared intensity and whether angle meets the requirements, and record stores.
8. the detection method of PCBA plate according to claim 6, is characterized in that,
When PCBA plate to be measured is reception PCBA plate to be measured, Standard PC BA plate adopts standard emission PCBA plate;
Described standard emission PCBA plate issues out standard infrared ray in the control of pick-up unit, and described reception PCBA plate to be measured receives described standard emission PCBA plate and sends standard infrared ray;
Pick-up unit receives the ultrared intensity of standard according to reception PCBA plate to be measured and whether angle meets the requirements, and record stores.
9. the detection method of PCBA plate according to claim 1, is characterized in that,
After described step 7, also comprise:
Pick-up unit shows output by display module by the quality information of PCBA plate to be measured;
When PCBA plate to be measured does not meet quality requirements, pick-up unit starts audible alarm module, prompting user.
10. a pick-up unit, it is characterized in that, comprise: for be connected and send to described microcontroller the docking sensing module of signal after PCBA plate to be measured connects with PCBA plate to be measured, match for detection of the Standard PC BA plate of PCBA plate function to be measured with PCBA plate to be measured, for showing the display module of the quality information of exporting PCBA plate to be measured, while not meeting quality requirements for PCBA plate to be measured, point out user's audible alarm module, for setting the parameter setting module of PCBA plate standard information and for receiving the signal of described docking sensing module, and in testing process, send the contact pin pin that pulse signal and start pulse signal are tested PCBA plate to be measured, and the microcontroller that can obtain PCBA plate quality information to be measured by parameter and the described parameter setting module canonical parameter of PCBA plate more to be measured,
Described display module is electrically connected to described microcontroller, for show the quality information of output PCBA plate to be measured according to the control of described microcontroller;
Described audible alarm module is electrically connected to described microcontroller, points out user when not meeting quality requirements according to the control of described microcontroller PCBA plate to be measured;
Described parameter setting module is electrically connected to described microcontroller, and the PCBA plate standard information of setting according to described parameter setting module for described microcontroller relatively draws PCBA plate quality information to be measured;
Described microcontroller is also for determining that described PCBA plate to be measured is transmitting PCBA plate, or reception PCBA plate;
The contact pin pin that described microcontroller is also distinguished PCBA intralamellar part module to be measured for the PCBA plate standard information of setting according to described parameter setting module is by directly connecting detection or indirectly connecting and detect.
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