CN102315846B - Method for judging missing points by using welding spot counter - Google Patents
Method for judging missing points by using welding spot counter Download PDFInfo
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- CN102315846B CN102315846B CN201110101515.7A CN201110101515A CN102315846B CN 102315846 B CN102315846 B CN 102315846B CN 201110101515 A CN201110101515 A CN 201110101515A CN 102315846 B CN102315846 B CN 102315846B
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- 238000003466 welding Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 37
- 229910000679 solder Inorganic materials 0.000 claims description 16
- 238000012790 confirmation Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention provides a method for judging missing points by using a welding spot counter, comprising the following steps of; determining the number of welding spots of technological requirement; acquiring a welding signal and counting the number of actual welding spots by the counter; when welding of welding spots is manually confirmed to be finished, enabling the counter to step counting, and comparing the number of the actual welding spots, obtained through counting, with the number of welding spots of technological requirement; and if the number of the actual welding spots is not equal to the number of welding spots of the technological requirement, judging that spots are missed by using the counter.
Description
Technical field
The present invention relates to the solder joint decision technology in welding procedure, specifically a kind of leak source decision method for welding spot counter.
Background technology
Welding spot counter conventionally adopts following operation principle to carry out work: when soldering turret welding, and start pulse signal, welding completes, and counter is by the collection to number of signals and the contrast of solder joint number, then judges whether leak source.The general work flow process of widely used welding spot counter is: first confirm that technique welding counts, after welding operation completes, welding spot counter judges automatically at certain timing node, counter by actual welding count and technique welding requirements number of welds contrast, as leak source welding machine control soldering turret quit work and report to the police; Otherwise can carry out next round welding operation.We are called such counter " time is judged welding spot counter ".The welding spot counter that is above-mentioned workflow mode that our company promotes the use of at present.
Thisly confirm judge that according to the time welding spot counter that whether completes of welding has larger advantage, wherein personnel limit if having time and therefore arbitrarily interrupt operation has certain effect to normalizing operation in operating process.This judgement time parameter T
judgementthe claimed range of selecting is: weld maximum duration value T used from single-point
single-pointbe worth T to this welding last point to the interval time of first of welding next time
get piece installing(get, piece installing time), i.e. T
single-point< T
judgement< T
get piece installing.But due to body dimensions precision and technological requirement, there is secondary piece installing welding or frequently change soldering turret welding in part station, the problems such as frock, plant issue or supplied materials defect also occur in operating process often, causes single-point welding time T
single-point> T
get piece installing.If judgement time T is set by force to the welding spot counter of these stations
judgement(owing to judging time T
judgementfor productive temp and technological requirement decision, generally can not adjust), quit work at the frequent warning of operating process Counter meeting, welding machine, it must cause the quality risk that stops line loss mistake and solder skip point to production line; Also can mislead operating personnel and think own leak source, thereby operating personnel easily produce resentment to the use of new equipment.
List of references 1: Chinese patent application CN200810032744.6
Summary of the invention
The object of this invention is to provide a kind of leak source decision method of welding spot counter, judgement time T is set by force to solve because of the welding spot counter of station
judgement, cause in welding spot counter operating process frequently report to the police, the out-of-work problem of welding machine.
The leak source decision method of welding spot counter provided by the present invention, comprises the following steps: determine that technological requirement welding counts; Counter gathers welding signal so that actual welding is counted and to be counted; In the time having confirmed manually solder joint welding, counter stops counting, and the actual welding that counting is drawn is counted and counted and contrast with technique welding; Count unequally if actual welding is counted with technique welding, counter is judged leak source.
Wherein, confirm manually solder joint welding, specifically welded bat-handle switch signal or connect clamp switch signal by connection.
Preferably, counter makes welding machine or fixture quit work and report to the police in the time judging leak source.Meanwhile, counter can also be reaffirmed solder joint.
Count and equate with technique welding if actual welding is counted, counter is judged does not have leak source, and can carry out zero clearing to count value.Now, the collection that counter can carry out next welding signal is again to count.
Adopt the counter of above-mentioned self test mode, can can not use because the judgement time does not meet the demands, and some accidents in operating process do not affect counter yet and use, operating personnel carry out self-inspection initiatively maybe must to welding spot counter signal, ensureing number of welds, is also a kind of practical mode.Make operating personnel there is greater flexibility, improved operating efficiency.
Brief description of the drawings
Fig. 1 is the schematic block diagram while welding bat-handle switch signal according to connecting manually of first embodiment of the invention;
Fig. 2 be according to second embodiment of the invention connect manually clamp switch signal time schematic diagram.
Embodiment
Judgement time T is set by force for solving because of the welding spot counter of station
judgementcause in welding spot counter operating process frequently report to the police, the out-of-work problem of welding machine, by thinking deeply having welded decision procedure, the decision signal that can take operating personnel's self test mode manually to complete to welding of welding spot counter from outside, welding spot counter judges contrast again.If leak source, counter is reported to the police, and while welding machine quits work or frock clamp is not worked.Otherwise if there is no leak source, can carry out next round welding operation.That is: welding signal acquisition mode is constant, has welded judgement and has changed, and adopts operating personnel's self test mode to touch relevant device device and judges, avoids the unnecessary line that stops.
Below by concrete preferred embodiment, the present invention is described.Should be appreciated that embodiment is only for explanation and easy to understand the present invention better, instead of in order to limit the scope of the invention.
As shown in Figure 1, first the technique welding requiring is counted and determined (S1), and determined counting deposited in the included memory of counter.In welding process, welding cable can produce very large electric current.Current sensor detects the generation of this electric current so that signal acquisition circuit is exported to a sensor signal.This sensor signal is converted into digital signal and sends into counter in signal acquisition circuit, thereby counter is by counting this digital signal as welding signal, obtain actual welding count (S2).From existing welding spot counter is set by force the judgement time and judges whether that leak source is different, in the present embodiment, counter is not arranged to a judgement time, confirm that solder joint welding completes but manually provide a signal by operating personnel to counter.In Fig. 1, this confirmation is connected welding bat-handle switch signal by welding personnel and is realized (S3).
Once counter receives the confirmation the above-mentioned signal that solder joint has welded, just stop counting, and the actual welding that adds up to obtain is counted and counted and contrast with the technique welding requiring, judge whether to exist leak source (S4).If actual welding is counted and is less than technique welding and counts, there is leak source ("Yes" in S4) in counter judgement, now makes welding machine quit work (S5).Operating personnel check confirmation (S6) to the solder joint of welding.After this, the process of repeating step S2 to S4 again, does not have leak source ("No" in S4) until counter is judged.So counter records zero clearing (S7), to prepare the collection (S8) of the welding signal that carries out next round.
By the way, carry out leak source judgement owing to forcibly limiting a judgement time to counter, therefore can avoid counter because the judgement time does not meet the demands or operating process in some accidents and cause out of use problem.
One embodiment of the present of invention have been described above.Fig. 2 shows an alternative embodiment of the invention, and wherein the step identical with Fig. 1 represents with same reference numbers, and the descriptions thereof are omitted at this.
The first embodiment shown in the second embodiment shown in Fig. 2 and Fig. 1 is basic identical, and difference is the object difference connected manually, is here to have confirmed solder joint welding (S3 ') by connecting clamp switch signal.If counter judgement exists leak source ("Yes" in S4), do not provide driving signal to the electromagnetically operated valve of fixture, therefore fixture be failure to actuate (S5 ').And if there is not leak source ("No" in S4) in judgement, counter records zero clearing, electromagnetically operated valve receives signal, fixture is opened (S7 ').
By above two kinds of modes manually, confirm solder joint welding, effectively avoid because judgement time T is set by force
judgement, cause in welding spot counter operating process frequently report to the police, the out-of-work problem of welding machine, make operating personnel there is greater flexibility, contribute to the raising of operating efficiency.
Although describe the present invention in detail by specific embodiment, but scope of the present invention is not limited to this, those skilled in the art can also make various variants and modifications in the scope of purport of the present invention and spirit covering.For example, in an embodiment of the present invention, to completing solder joint, to weld the mode of confirming be that switch by connecting welding machine or fixture is realized.But the invention is not restricted to this, can also adopt other suitable mode to provide confirmation signal to counter.Scope of the present invention is limited by claims.
Claims (6)
1. a method for judging missing points by using welding spot counter, comprises step:
Determine that technique welding counts;
Counter gathers welding signal so that actual welding is counted and to be counted;
In the time having confirmed manually solder joint welding, counter stops counting, and the actual welding that counting is drawn is counted and counted and contrast with technique welding; Describedly having confirmed manually solder joint welding, is the decision signal manually completing to welding of welding spot counter from outside by operator's self test mode;
Count unequally if actual welding is counted with technique welding, counter is judged leak source.
2. method according to claim 1, has wherein confirmed that solder joint welding is by connecting bat-handle switch signal or realizing by connecting clamp switch signal manually.
3. according to the method described in any one in claim 1 to 2, its Counter makes welding machine or fixture quit work and report to the police in the time judging leak source.
4. method according to claim 3, its Counter is reaffirmed solder joint after welding machine or fixture quit work.
5. according to the method described in any one in claim 1 to 2, also comprise step:
Count and equate with technique welding if actual welding is counted, counter is judged does not have leak source, and count value is carried out to zero clearing.
6. method according to claim 5, also comprises step:
Counter carries out the collection of next welding signal again to count.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110101515.7A CN102315846B (en) | 2011-04-19 | 2011-04-19 | Method for judging missing points by using welding spot counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110101515.7A CN102315846B (en) | 2011-04-19 | 2011-04-19 | Method for judging missing points by using welding spot counter |
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| Publication Number | Publication Date |
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| CN102315846A CN102315846A (en) | 2012-01-11 |
| CN102315846B true CN102315846B (en) | 2014-07-02 |
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| CN201110101515.7A Active CN102315846B (en) | 2011-04-19 | 2011-04-19 | Method for judging missing points by using welding spot counter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077421A (en) * | 2012-10-22 | 2013-05-01 | 奇瑞汽车股份有限公司 | Stud welding counter |
| CN104708185A (en) * | 2015-03-05 | 2015-06-17 | 奇瑞汽车股份有限公司 | Stud welding machine system |
| CN112008219A (en) * | 2020-08-17 | 2020-12-01 | 奇瑞汽车股份有限公司 | Detection method for counting resistance spot welding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698652B1 (en) * | 1998-05-28 | 2004-03-02 | Infineon Technologies Ag | Method and arrangement for operating a multistage counter in one counting direction |
| CN2933684Y (en) * | 2006-07-29 | 2007-08-15 | 奇瑞汽车有限公司 | Stud welding machine |
| CN201210244Y (en) * | 2008-06-26 | 2009-03-18 | 天津七所高科技有限公司 | Welding point counting controller for welding machine |
| CN201333587Y (en) * | 2009-01-07 | 2009-10-28 | 富奥汽车零部件股份有限公司 | Solder skip prevention electric control device for welding machine |
-
2011
- 2011-04-19 CN CN201110101515.7A patent/CN102315846B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698652B1 (en) * | 1998-05-28 | 2004-03-02 | Infineon Technologies Ag | Method and arrangement for operating a multistage counter in one counting direction |
| CN2933684Y (en) * | 2006-07-29 | 2007-08-15 | 奇瑞汽车有限公司 | Stud welding machine |
| CN201210244Y (en) * | 2008-06-26 | 2009-03-18 | 天津七所高科技有限公司 | Welding point counting controller for welding machine |
| CN201333587Y (en) * | 2009-01-07 | 2009-10-28 | 富奥汽车零部件股份有限公司 | Solder skip prevention electric control device for welding machine |
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