CN102340982A - Error proofing detection device and method - Google Patents
Error proofing detection device and method Download PDFInfo
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- CN102340982A CN102340982A CN2011100049014A CN201110004901A CN102340982A CN 102340982 A CN102340982 A CN 102340982A CN 2011100049014 A CN2011100049014 A CN 2011100049014A CN 201110004901 A CN201110004901 A CN 201110004901A CN 102340982 A CN102340982 A CN 102340982A
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Abstract
The invention discloses an error proofing detection device comprising an information storage unit used for storing parameter information of a component to be installed, a detection unit used for detecting a practically transmitted component and obtaining parameter information thereof, a comparison unit used for comparing the parameter information detected by the detection unit with the parameter information stored in the information storage unit and a control unit used for making a warning prompt when the compared result of the comparison unit is inconsistent. Through the error proofing detection device provided by the invention, the components which have artificial error feeding and cannot be identified by an image identification device are detected out for the warning prompt, so that production of poor-quality batches is avoided, and the error proofing detection device is beneficial to saving cost and increasing production efficiency.
Description
Technical field
The present invention relates to the surface mount field, especially, relate to a kind of mistake proofing material checkout gear and method that is used for chip mounter.
Background technology
Surface mounting technology (Surface Mounting Technology is called for short SMT) is an electronics packaging technology of new generation, and this technology is assembled to surface mount device the automation that realizes production on the printed circuit board (PCB).At present, advanced electronic product, particularly computer and communication class electronic product generally adopt surface mounting technology.
Along with making constant progress of surface mounting technology, the volume of multiple electronic components such as resistance, electric capacity, IC chip is more and more littler, and the factory of most of electronic products adopts automatic placement machine.In process of production, for chip mounter, more basic requirement is exactly whether get material accurate.Yet; Because it is careless; The operator often will expect to go up wrong, behind the last wrong material, if the basic configuration key element of the length of components and parts, width is identical; In fact but the material so is the detection that electric capacity also can be through pattern recognition device and mounts on the printed circuit board (PCB) even should be worked as for resistance; Cause serious batch bad because thereby wrong material in enormous quantities, large-area takes place for the batch process performance of chip mounter again, like this, circuit board was scrapped in a large number and was increased cost through not only having influenced quality after reprocessing but also can having produced.
Summary of the invention
The present invention is directed to the above-mentioned defective of existing in prior technology, proposed a kind of mistake proofing material checkout gear.This mistake proofing material checkout gear has: information memory cell is used to store the parameter information of the components and parts that should be mounted; Detecting unit is used to detect the actual components and parts that are transmitted and obtains its parameter information; Comparing unit is used for detected parameter information of said detecting unit and said information memory cell institute stored parameters information are compared; And control unit, be used for carrying out alarm when being inconsistent when the comparative result of said comparing unit.
Particularly, said parameter information comprises impedance classification and one of them person of resistance value at least.
More specifically, said impedance classification is one of them person of resistance, electric capacity or inductance.
Preferably; Said checkout gear comprises that also accomodating unit is in order to hold the actual components and parts that are transmitted; Said accomodating unit is in order to hold the actual components and parts that are transmitted and are set in advance the needs test, and said accomodating unit holds same type components and parts for said detection.Wherein, more excellent ground, said accomodating unit has a plurality of subelements that hold, and each holds subelement and is set in order to the components and parts that hold a kind of specification and by said detection.
Preferably, said accomodating unit or hold and all have the suction inlet that is connected with air-extractor in the subelement via said suction inlet, is contained in said accomodating unit or the components and parts that hold in the subelement are attracted on the test point of said detecting unit.
Particularly, said air-extractor is air exhauster, dust catcher or vacuum pump.
The invention also discloses a kind of chip mounter, it has: chip mounter main body, part supplying device, components and parts transport, mistake proofing material checkout gear and pattern recognition device.Wherein, said part supplying device is installed on the said chip mounter main body and is used for components and parts are transported to take-off location; Said components and parts supply unit is installed in that the components and parts that are used on the said chip mounter main body take-off location are transported to said mistake proofing material checkout gear and said pattern recognition device carries out detection and Identification; Said mistake proofing material checkout gear is installed in and is used to judge whether the actual components and parts that are transmitted are the components and parts of being scheduled on the said chip mounter main body; Said pattern recognition device is installed in the adsorbed state that is used to discern components and parts on the said chip mounter main body; Wherein, said mistake proofing material checkout gear has information memory cell, detecting unit, comparing unit and control unit; Said information memory cell is used to store the parameter information of the components and parts that should be mounted; Said detecting unit is used to detect the actual components and parts that are transmitted and obtains its parameter information; Said comparing unit is used for detected parameter information of said detecting unit and said information memory cell institute stored parameters information are compared; Said control unit is used for carrying out alarm when being inconsistent when the comparative result of said comparing unit.
Wherein, said parameter information comprises impedance classification and one of them person of resistance value at least.
The invention also discloses a kind of detection method that is applied to mistake proofing material on the chip mounter, it comprises the steps:
The parameter information of the components and parts that (1) should be mounted stores the step of information memory cell in advance into;
(2) the actual components and parts that are transmitted are carried out the step that parameter information detects via detecting unit;
(3) step that the detected parameter information of said detecting unit and said information memory cell institute stored parameters information is compared;
When being inconsistent (4), carry out the step of alarm by control unit as if the result who compares in (3).
Particularly, said parameter information comprises impedance classification and one of them person of resistance value at least.
More specifically, said impedance classification is one of them person of resistance, electric capacity or inductance.
Preferably, the said actual components and parts that are transmitted are for being arranged in first components and parts of feeder (Feeder).
Preferably, said detection method also comprises the notifying process of reloading, and, after reloading, carries out the step of (2)-(4) again that is.
More preferably, the said notifying process of reloading is being reloaded after send the instruction of the reloading comparative result that the line program initialization is about to last time of going forward side by side by the notice button to said control unit and empty.
Preferably, said reload notifying process through will reload transferred first components and parts in back with reload before last components and parts between at least material level of sky realize.
More preferably, said reload notifying process through will reload transferred first components and parts in back with reload before last components and parts between two material levels of sky realize.
Through mistake proofing material checkout gear of the present invention; Can those artificially be gone up wrong material and can not be detected and carry out alarm by the components and parts that pattern recognition device is discerned; So just avoided bad in batches generation, helped saving cost and enhance productivity.
Description of drawings
Fig. 1 is the sketch map of mistake proofing material checkout gear of the present invention;
Fig. 2 is the flow chart that is applied to the detection method of mistake proofing material on the chip mounter of the present invention;
Fig. 3 is the sketch map of the testing cassete of mistake proofing material checkout gear of the present invention;
Fig. 4 is test cavity and item number, the length and width of material and the mapping table of whether testing in the testing cassete of mistake proofing material checkout gear of the present invention, and it is stored in the information memory cell.
Embodiment
With reference to Fig. 1, the embodiment of its schematically illustrated mistake proofing material checkout gear of the present invention.This mistake proofing material checkout gear comprises information memory cell 1, detecting unit 2, comparing unit 3 and control unit 4.
Normally, information memory cell 1 is read-only memory (ROM) or random-access memory (ram), and corresponding to printed circuit board (PCB) to be installed, the various parameter informations of the various components and parts that should install in the memory store.Yet; A circuit board possibly need tens kinds to the different components and parts of hundreds of kind; If will be so will be quite time-consuming in the whole write memories of all information of multicomponent device, preferably, components and parts described here refer to impedance type components and parts such as resistance, electric capacity, inductance.This is in reality, often to have identical or the approximate but resistance value condition of different of components and parts shape because recognize according to examining of inventor; For example 100 ohm resistance is almost completely identical with 1000 ohm resistance profile; Perhaps identical or the approximate but impedance type condition of different of shape, such as identical resistance and the electric capacity of shape.When the components and parts that should install when material loading is the same or analogous components and parts of another kind of profile by mistake artificially, the suction nozzle of chip mounter is drawn to behind these components and parts through relying on pattern recognition device that profile discerns components and parts and carry out the center calibration and can not correctly components and parts be identified and handle (like material casting).Therefore, the detection of detecting unit 2 described here is especially detected by the components and parts that pattern recognition device is obscured those easily.In other words, mistake proofing material described here mainly be prevent those easily by pattern recognition device can not distinguish and the mistake material situation that causes.Usually; Pattern recognition device is exactly components and parts such as the same or analogous resistance of profile, electric capacity, inductance than what be easier to obscure; Store the components and parts information that those are obscured by pattern recognition device easily thus in the memory, and institute's stored parameters information more excellently is stored information such as impedance classification 11 and resistance value 12 simultaneously more excellently.Here it is to be noted; Before processing; The chip mounter of prior art has write a part of information such as the components and parts shape information (length, width and/or height) etc. of components and parts according to circuit board to be processed and components and parts feeding order; Yet these information do not comprise information such as aforesaid impedance classification 11 and resistance value 12, can not identified and handled by pattern recognition device even the chip mounter of prior art comprises these information.So from this respect, major function of the present invention is that the pattern recognition device of auxiliary chip mounter carries out comprehensive identification of components and parts.
Detecting unit 2 more excellent ground can detect actual in parameter informations such as the impedance classification of the adsorbed components and parts of suction nozzle and resistance values.
Detecting unit 2 of the present invention is used a testing cassete and is accomplished, and includes several test cavitys in the described testing cassete.The test cavity can design according to the components and parts type to be tested of correspondence.Referring to Fig. 3, Fig. 3 represents testing cassete, wherein has A, B, C, D, E, six tests of F cavity, all has air entry or vacuum port in each test cavity, and it is connected with air extractor.Again referring to Fig. 4; Fig. 4 representative is stored in the sub-fraction data message relevant with the present invention of information memory cell; It has shown each test cavity and material loading type, the length and width of components and parts and the corresponding relation that whether need test in the testing cassete; For example, corresponding test cavity C, length is that 1mm, width are that the components and parts of 0402 model of 0.5mm can enter into this cavity and test; Corresponding test cavity D, length is that 1.6mm, width are that the components and parts of 0603 model of 0.8mm can get in this cavity and test, by that analogy, the test cavity in the testing cassete corresponds respectively to and chooses the components and parts type that needs test.Because to be stored in the information memory cell and to have added man-hour also be according to the order charging of setting to the data of these corresponding relations before chip mounter processing; Therefore; Just confirmed whether need test and, removed to seek the test cavity of testing the type components and parts again during charging if certain type components and parts need be tested to which test chamber body examination examination.Each is tested all has one or more test points and is used for being connected so that obtain test result with following tester in the cavity.
Those skilled in the art should be appreciated that; Said testing cassete can have more than six or be less than six test cavity; Suction nozzle can carry out addressing according to each coordinate of testing cavity; The option that whether need test described here also is to be redefined for the needs test according to those components and parts of being obscured by pattern recognition device easily mentioned above, and other can be redefined for by the components and parts that pattern recognition device is distinguished does not need test.In addition, those skilled in the art should be appreciated that also the test cavity can be as mentioned above becomes to have the shape of specific length and width according to the components and parts type design; Also can the test cavity be designed to the V font; On the both sides of V font, the benefit of this V font is in a test cavity, to test multiple components and parts, promptly with the test point design; When the components and parts of different sizes place V font test cavity, can be at different depth location place engaged test points.In addition, even must in testing cassete, not design so much test cavity, it also is feasible promptly only designing a test cavity that can adapt to numerous components and parts shapes.
Because the present invention need test parameter informations such as impedance classification and resistance values, therefore, can directly adopt existing LCR tester on the market, for example model is that the tester of HIOKI3535, HIOKI 3504, AT810 or AT817 all can.Wherein, said LCR tester is inductance, electric capacity, resistance parameter measuring instrument, and it can not only judge components and parts character automatically, and can symbol figure be shown, and demonstrates resistance value etc.Each test point in each test cavity is all linked on the LCR tester by lead, and in components and parts were placed into the test cavity, air extractor just can be adjacent on test point with components and parts through air entry.Usually, described air extractor is air exhauster or vacuum pump etc., and in the present invention, because chip mounter itself just has air exhauster, therefore, it is just passable only to need with tracheae air exhauster to be connected to each air entry.At last, the data that test obtained send in the comparing unit through holding wire.Though adopting existing LCR tester is a kind of more excellent scheme, those skilled in the art should be appreciated that as long as corresponding LCR test circuit is embedded into aforesaid test cavity.
Comparing unit 3 is generally positioned in the main frame of chip mounter with control unit 4.Said comparing unit 3 is used for the parameter information of said detecting unit 2 detected parameter informations and 1 pre-stored of said information memory cell is compared; If pre-stored information is identical with the information that obtains of test or in the error range of setting, then chip mounter continues operation; If pre-stored information has surpassed the error range of setting with the degree of the information inconsistency that test obtains, then control unit 4 can carry out alarm and control chip mounter out of service.
The invention also discloses a kind of chip mounter, it has: chip mounter main body, part supplying device, components and parts transport, mistake proofing material checkout gear and pattern recognition device.Wherein, said part supplying device is installed on the said chip mounter main body and is used for components and parts are transported to take-off location; Said components and parts supply unit is installed in that the components and parts that are used on the said chip mounter main body take-off location are transported to said mistake proofing material checkout gear and said pattern recognition device carries out detection and Identification; Said mistake proofing material checkout gear is installed in and is used to judge whether the actual components and parts that are transmitted are the components and parts of being scheduled on the said chip mounter main body; Said pattern recognition device is installed in the adsorbed state that is used to discern components and parts on the said chip mounter main body; Wherein, said mistake proofing material checkout gear has information memory cell, detecting unit, comparing unit and control unit; Said information memory cell is used to store the parameter information of the components and parts that should be mounted; Said detecting unit is used to detect the actual components and parts that are transmitted and obtains its parameter information; Said comparing unit is used for detected parameter information of said detecting unit and said information memory cell institute stored parameters information are compared; Said control unit is used for carrying out alarm when being inconsistent when the comparative result of said comparing unit.
Wherein, described parameter information is impedance classification information and one of them person of resistance value information.
Particularly, said part supplying device has feed appliance (Feeder) at least, and more specifically, this feed appliance is the material belt type feed appliance, and on each different stack position, the components and parts that strip loaded on the material belt type feed appliance are identical.The conveyer that said components and parts transport has suction nozzle at least and moves along X, Y and Z axle.Said pattern recognition device has the Parts Recognition camera at least.Because these are prior art, so repeat no more at this.
The invention also discloses a kind of detection method that is applied to mistake proofing material on the chip mounter.Referring to the included step of this detection method of Fig. 2 simple declaration.
Before detecting, carry out step 101 earlier, the parameter information of the components and parts that soon should be mounted stores in the information memory cell 1 in advance.Secondly; Utilize the material belt type feed appliance that reality is delivered to take-off location and by suction nozzle first components and parts picked up and deliver to the step 102 in the testing cassete by the components and parts that the operator is placed on the feed appliance, what need explanation is only to need first components and parts of test to get final product here; As indicated above; This is because components and parts that strip loaded are identical, passes through if first components and parts detect, and then justification function person does not misplace material.Once more, detect the step 103 of the parameter information of these components and parts via detecting unit 2.Then, the step 104 that said detecting unit 2 detected parameter informations and 1 stored parameters information of said information memory cell is compared by comparing unit 3.Carry out step 105 again, promptly whether the result that compared of determining step 104 is consistent, if when comparative result surpasses predetermined scope; The step 106 of reporting to the police by control unit 4; If comparative result is consistent, then carry out step 107, promptly continue operation until this billot end of tape.And then, connect material successively band step 108, the notifying process of reloading 109 and emptying step 110, its difference are as follows: the said band step 108 that connects material is the tail end of next bar strip being received a last strip at a distance from two empty material levels; The said notifying process 109 of reloading is the double material of getting of suction nozzle and fails, and sends the notification instruction of reloading to control unit 4; Said emptying step 110 is control unit 4 and will empties by 3 comparisons of comparing unit and by the preceding comparative result that memory cell 1 is stored.
Said parameter information comprises impedance classification and one of them person of resistance value at least.
Said impedance classification is one of them person of resistance, electric capacity or inductance.
Said material belt type feed appliance, strip only are exemplary, also can adopt other types.
Said control unit 4 is received the step of carrying out (2)-(4) after above-mentioned reloading notified again.
Selectively, the said notifying process 109 of reloading can reloaded after sent the prompting instruction of " reloading " and by control unit 4 comparative result before the reloading in the information memory cell 1 is emptied to said control unit 4 by a set notice button.
Selectively, the said notifying process 109 of reloading will reload transferred first components and parts in back with reload before last components and parts between also can an only vacant material level, but this execution mode is not so good as the execution mode of vacant two components and parts; Because; In actual production, the situation of vacant components and parts all is set at by chip mounter and neglects, and does not promptly report to the police; Otherwise, warning is too frequent.Those skilled in the art should be appreciated that; No matter notice button or at least one or two material levels are vacant is set; It only is a based reminding method, sends the prompting of reloading and makes chip mounter restart test to the control unit 4 of chip mounter as long as can realize.
The present invention is limited to the illustrative embodiments that in specification and accompanying drawing, appears never in any form.In the scope of summarizing like claims of the present invention, a lot of distortion are possible.In addition, should any reference marker in claims be configured to limit scope of the present invention.
Claims (11)
1. mistake proofing material checkout gear, it has:
Information memory cell is used to store the parameter information of the components and parts that should be mounted;
Detecting unit is used to detect the actual components and parts that are transmitted and obtains its parameter information;
Comparing unit is used for detected parameter information of said detecting unit and said information memory cell institute stored parameters information are compared; And
Control unit is used for carrying out alarm when being inconsistent when the comparative result of said comparing unit.
2. checkout gear according to claim 1 is characterized in that, said parameter information comprises impedance classification and one of them person of resistance value at least.
3. checkout gear according to claim 1; It is characterized in that; Said checkout gear also comprises accomodating unit in order to hold the actual components and parts that are transmitted and are set in advance the needs test, and said accomodating unit holds same type components and parts for said detection.
4. checkout gear according to claim 3 is characterized in that, all has the suction inlet that is connected with air-extractor in the said accomodating unit, and via said suction inlet, the components and parts that are contained in the said accomodating unit are attracted on the test point of said detecting unit.
5. detection method that is applied to mistake proofing material on the chip mounter, it comprises the steps:
The parameter information of the components and parts that (1) should be mounted stores the step of information memory cell in advance into;
(2) the actual components and parts that are transmitted are carried out the step that parameter information detects via detecting unit;
(3) step that the detected parameter information of said detecting unit and said information memory cell institute stored parameters information is compared;
When being inconsistent (4), carry out the step of alarm by control unit as if the result who compares in (3).
6. method according to claim 5 is characterized in that, said parameter information comprises impedance classification and one of them person of resistance value at least.
7. method according to claim 5 is characterized in that, the said actual components and parts that are transmitted are for being arranged in first components and parts of feeder (Feeder).
8. method according to claim 5 is characterized in that said detection method also comprises the notifying process of reloading, and in order to sending the operational notification that reloads to said control unit, said control unit is received the step of carrying out (2)-(4) after this notice again.
9. method according to claim 8 is characterized in that, the said notifying process of reloading is for reloading after send the instruction of reloading by the notice button to said control unit.
10. method according to claim 8 is characterized in that, said reload notifying process through will reload transferred first components and parts in back with reload before last components and parts between at least material level of sky realize.
11. method according to claim 10 is characterized in that, said reload notifying process through will reload transferred first components and parts in back with reload before last components and parts between at least two material levels of sky realize.
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| CN2011100049014A CN102340982A (en) | 2011-01-12 | 2011-01-12 | Error proofing detection device and method |
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| CN2011100049014A CN102340982A (en) | 2011-01-12 | 2011-01-12 | Error proofing detection device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103429067A (en) * | 2012-05-14 | 2013-12-04 | Juki株式会社 | Electronic component mounting apparatus |
| CN109923956A (en) * | 2016-11-09 | 2019-06-21 | 雅马哈发动机株式会社 | Element check system |
| CN110232550A (en) * | 2019-06-18 | 2019-09-13 | Oppo（重庆）智能科技有限公司 | Bulk cargo control method, bulk cargo control device and terminal device |
| CN110913680A (en) * | 2019-12-01 | 2020-03-24 | 深圳市智微智能软件开发有限公司 | SMT automatic feeding method and system |
| CN112123335A (en) * | 2020-09-10 | 2020-12-25 | 上海交通大学 | Rapid model changing device and method for multi-model parts of robot workstation |
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| CN1583514A (en) * | 2004-05-31 | 2005-02-23 | 项平 | Packing method for paste element and stock band |
| CN101807061A (en) * | 2010-02-11 | 2010-08-18 | 东莞朗诚模具有限公司 | Vision detection control system and method for integrated circuit tendon-cut system |
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| US5067007A (en) * | 1988-06-13 | 1991-11-19 | Hitachi, Ltd. | Semiconductor device having leads for mounting to a surface of a printed circuit board |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429067A (en) * | 2012-05-14 | 2013-12-04 | Juki株式会社 | Electronic component mounting apparatus |
| CN109923956A (en) * | 2016-11-09 | 2019-06-21 | 雅马哈发动机株式会社 | Element check system |
| CN109923956B (en) * | 2016-11-09 | 2020-09-15 | 雅马哈发动机株式会社 | Component collation system |
| US11490552B2 (en) | 2016-11-09 | 2022-11-01 | Yamaha Hatsudoki Kabushiki Kaisha | Component verification system |
| CN110232550A (en) * | 2019-06-18 | 2019-09-13 | Oppo（重庆）智能科技有限公司 | Bulk cargo control method, bulk cargo control device and terminal device |
| CN110913680A (en) * | 2019-12-01 | 2020-03-24 | 深圳市智微智能软件开发有限公司 | SMT automatic feeding method and system |
| CN110913680B (en) * | 2019-12-01 | 2021-07-13 | 深圳市智微智能软件开发有限公司 | SMT automatic feeding method and system |
| CN112123335A (en) * | 2020-09-10 | 2020-12-25 | 上海交通大学 | Rapid model changing device and method for multi-model parts of robot workstation |
| CN112123335B (en) * | 2020-09-10 | 2022-03-11 | 上海交通大学 | Rapid model changing device and method for multi-model parts of robot workstation |
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Application publication date: 20120201 |