CN107340122A - A kind of sizer measures inaccurate failure problems analysis with solving method - Google Patents
A kind of sizer measures inaccurate failure problems analysis with solving method Download PDFInfo
- Publication number
- CN107340122A CN107340122A CN201710465959.6A CN201710465959A CN107340122A CN 107340122 A CN107340122 A CN 107340122A CN 201710465959 A CN201710465959 A CN 201710465959A CN 107340122 A CN107340122 A CN 107340122A
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- Prior art keywords
- check
- measured value
- correction
- value
- sizer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a kind of sizer to measure inaccurate failure problems analysis with solving method, it is characterised in that：Comprise the following steps：（1）Check in gas circuit whether pipeline and element can normal works, it is ensured that gross pressure is in required scope；（2）Verification check and correction post, is such as unsatisfactory for diameter parameters, then changes check and correction post；（3）Check and correction parameter is checked according to parameter conversion table；（4）Recalibrate, ensure comprehensive and calibrated numerical value Gain in the range of 0.9 to 1.1；（5）Check measurement parameter is compensated and adjusted accordingly.The reason for sizer measurement is inaccurate can quickly be found out and be solved in time by adopting the failure problems analysis of the present invention and solution method, and the raising to product quality and production efficiency serves good effect.
Description
Technical field
The present invention relates to automobile engine crankshaft manufacture field, and in particular to a kind of sizer measures inaccurate failure problems
Analysis is with solving method.
Background technology
Crankshaft journal and bearing shell mismate, engine tile kilning in operation, the standard of crankshaft journal packet can be caused
True property is just particularly important, thus sizer is widely applied in bent axle machining.
Sizer in use, as equipment is vibrated etc. in use, it will produce some failures, make
Measured into sizer inaccurate.Therefore sizer is calibrated in class before every every class and just seems very necessary, by dividing
The inaccurate most common failure problem of group machine measurement is analyzed, and is rapidly found out the reason for sizer measurement is inaccurate and is solved
Certainly, it appears particularly important.But inaccurate accident analysis in the prior art, is measured to sizer and method for removing is less efficient,
Cause product yield low, production cost increases.
The content of the invention
In view of the shortcomings of the prior art, problem solved by the invention is how quickly to carry out accident analysis simultaneously to sizer
Fix a breakdown.
In order to solve the above technical problems, the technical solution adopted by the present invention, which is a kind of sizer, measures inaccurate failure problems
Analysis comprises the following steps with solving method：
(1) check in gas circuit whether pipeline and element can normal works, it is ensured that gross pressure is as follows in required scope, detailed process：
1）The pressure gauge checked on pneumatic bigeminy part, the pressure adjustment knob on pneumatic bigeminy part is adjusted, ensure that total gas pressure exists
（0.4~0.6）In Mpa；
2）Check whether the air cleaner in pneumatic bigeminy part fails because there is large quantity of moisture in tracheae tracheae, causing can not mistake
The moisture phenomenon in pressure-air caused by air compressor machine is filtered, in this way, changes pneumatic bigeminy part；
3）When total gas pressure exists（0.4~0.6）In the range of Mpa, the gas outlet on pneumatic-to-current converter does not have gas ejection, checks pneumoelectric
Black knob on converter whether have by clockwise close to be screwed to bottom so that gas outlet substantially without gas spray phenomenon, in this way,
Black knob is adjusted, outlet pressure is used and is adjusted to required pressure；
4）Whether have because of tracheae aging or abrasion, and breakage causes leak if checking the tracheae of connection gauge head and pneumatic-to-current converter gas outlet
Gas, in this way, changed using caliber identical tracheae.
（2）Verification check and correction post, is such as unsatisfactory for diameter parameters, then changes check and correction post；During post is proofreaded in verification, work as discovery
Post external diameter serious wear is proofreaded, caused check and correction post outside diameter Φ is unsatisfactory for claimed below：
Maximum check and correction post outside diameter Φ=technique maximum ± 0.002（mm）, centre is proofreaded among post outside diameter Φ=technique
Value ± 0.002（mm）, minimum check and correction post outside diameter Φ=technique minimum value ± 0.002（mm）, then check and correction post is changed.
（3）Check and correction parameter is checked according to parameter conversion table：Each big value measured value of input and small value measured value, substitute into
Lower parameter conversion table, draws check and correction parameter；
Its parameter setting calculation formula is as follows：
Min Nominal nominal values (mm)=-（Big value measured value-small value measured value）/ 2
Max Nominal nominal values (mm)=（Big value measured value-small value measured value）/ 2
Min Actual actual values (mm)=small value measured value-technique median
Max Actual actual values (mm)=be worth measured value-technique median greatly.
（4）Recalibrate, ensure comprehensive and calibrated numerical value Gain in the range of 0.9 to 1.1.
（5）Check measurement parameter is compensated and adjusted accordingly, when measured value is more than 0.002mm with actual value error,
Measurement parameter offset Correlation Offset are actual to be should be " 0 ", and arranges value is not " 0 ", and measurement parameter in software is mended
Value Correlation Offset columns are repaid to be changed to " 0 ".
Sizer measurement inaccuracy can quickly be found out in time by adopting the failure problems analysis of the present invention and solution method
Reason is simultaneously solved, and the raising to product quality and production efficiency serves good effect.
Brief description of the drawings
Fig. 1 is flow chart of the present invention.
Embodiment
The embodiment of the present invention is further described below in conjunction with the accompanying drawings, but is not the limit to the present invention
It is fixed.
Fig. 1 shows flow of the present invention, and a kind of sizer measures inaccurate failure problems analysis and solves method, including such as
Lower step：
(1) check in gas circuit whether pipeline and element can normal works, it is ensured that gross pressure is as follows in required scope, detailed process：
1）The pressure gauge checked on pneumatic bigeminy part, the pressure adjustment knob on pneumatic bigeminy part is adjusted, ensure that total gas pressure exists
（0.4~0.6）In Mpa；
2）Check whether the air cleaner in pneumatic bigeminy part fails because there is large quantity of moisture in tracheae tracheae, causing can not mistake
The moisture phenomenon in pressure-air caused by air compressor machine is filtered, in this way, changes pneumatic bigeminy part；
3）When total gas pressure exists（0.4~0.6）In the range of Mpa, the gas outlet on pneumatic-to-current converter does not have gas ejection, checks pneumoelectric
Black knob on converter whether have by clockwise close to be screwed to bottom so that gas outlet substantially without gas spray phenomenon, in this way,
Black knob is adjusted, outlet pressure is used and is adjusted to required pressure；
4）Whether have because of tracheae aging or abrasion, and breakage causes leak if checking the tracheae of connection gauge head and pneumatic-to-current converter gas outlet
Gas, in this way, changed using caliber identical tracheae.
（2）Verification check and correction post, is such as unsatisfactory for diameter parameters, then changes check and correction post；During post is proofreaded in verification, such as find
Post external diameter serious wear is proofreaded, caused check and correction post outside diameter Φ is unsatisfactory for claimed below：
Maximum check and correction post outside diameter Φ=technique maximum ± 0.002（mm）, centre is proofreaded among post outside diameter Φ=technique
Value ± 0.002（mm）, minimum check and correction post outside diameter Φ=technique minimum value ± 0.002（mm）, then check and correction post is changed.
（3）Check and correction parameter is checked according to parameter conversion table：Each big value measured value of input and small value measured value, substitute into
Lower parameter conversion table, draws check and correction parameter；
Its parameter setting calculation formula is as follows：
Min Nominal nominal values (mm)=-（Big value measured value-small value measured value）/ 2
Max Nominal nominal values (mm)=（Big value measured value-small value measured value）/ 2
Min Actual actual values (mm)=small value measured value-technique median
Max Actual actual values (mm)=be worth measured value-technique median greatly.
（4）Recalibrate, ensure comprehensive and calibrated numerical value Gain in the range of 0.9 to 1.1.
（5）Check measurement parameter is compensated and adjusted accordingly, when measured value is more than 0.002mm with actual value error,
Measurement parameter offset Correlation Offset are actual to be should be " 0 ", and arranges value is not " 0 ", and measurement parameter in software is mended
Value Correlation Offset columns are repaid to be changed to " 0 ".
Sizer measurement inaccuracy can quickly be found out in time by adopting the failure problems analysis of the present invention and solution method
Reason is simultaneously solved, and the raising to product quality and production efficiency serves good effect.
Embodiments of the present invention are made that with detailed description above in association with accompanying drawing, but the present invention be not limited to it is described
Embodiment.To those skilled in the art, without departing from the principles and spirit of the present invention, these are implemented
Mode carries out various change, modification, replacement and modification and still fallen within protection scope of the present invention.
Claims (5)
1. a kind of sizer measures inaccurate failure problems analysis with solving method, it is characterised in that：Comprise the following steps：
（1）Check in gas circuit whether pipeline and element can normal works, it is ensured that gross pressure is in required scope；
（2）Verification check and correction post, is such as unsatisfactory for diameter parameters, then changes check and correction post；
（3）Check and correction parameter is checked according to parameter conversion table；
（4）Recalibrate, ensure comprehensive and calibrated numerical value Gain in the range of 0.9 to 1.1；
（5）Check measurement parameter is compensated and adjusted accordingly.
2. sizer according to claim 1 measures inaccurate failure problems analysis with solving method, it is characterised in that：Step
Suddenly in (1), detailed process is as follows：
1）The pressure gauge checked on pneumatic bigeminy part, the pressure adjustment knob on pneumatic bigeminy part is adjusted, ensure that total gas pressure exists
（0.4~0.6）In Mpa；
2）Check whether the air cleaner in pneumatic bigeminy part fails because there is large quantity of moisture in tracheae tracheae, causing can not mistake
The moisture phenomenon in pressure-air caused by air compressor machine is filtered, in this way, changes pneumatic bigeminy part；
3）When total gas pressure exists（0.4~0.6）In the range of Mpa, the gas outlet on pneumatic-to-current converter does not have gas ejection, checks pneumoelectric
Black knob on converter whether have by clockwise close to be screwed to bottom so that gas outlet substantially without gas spray phenomenon, in this way,
Black knob is adjusted, outlet pressure is used and is adjusted to required pressure；
4）Whether have because of tracheae aging or abrasion, and breakage causes leak if checking the tracheae of connection gauge head and pneumatic-to-current converter gas outlet
Gas, in this way, changed using caliber identical tracheae.
Exist 3. sizer according to claim 1 or 2 measures inaccurate failure problems analysis with solving method, its feature
In：In step (2), during post is proofreaded in verification, when post external diameter serious wear, caused check and correction post outside diameter Φ are proofreaded in discovery
It is unsatisfactory for claimed below：Maximum check and correction post outside diameter Φ=technique maximum ± 0.002（mm）, centre check and correction post outside diameter
Φ=technique median ± 0.002（mm）, minimum check and correction post outside diameter Φ=technique minimum value ± 0.002（mm）, then school is changed
To post.
Exist 4. sizer according to claim 1 or 2 measures inaccurate failure problems analysis with solving method, its feature
In：In step (3), each big value measured value of input and small value measured value, following parameter conversion table is substituted into, draws check and correction ginseng
Number；
Its parameter setting calculation formula is as follows：
Min Nominal nominal values (mm)=-（Big value measured value-small value measured value）/ 2,
Max Nominal nominal values (mm)=（Big value measured value-small value measured value）/ 2,
Min Actual actual values (mm)=small value measured value-technique median,
Max Actual actual values (mm)=be worth measured value-technique median greatly.
Exist 5. sizer according to claim 1 or 2 measures inaccurate failure problems analysis with solving method, its feature
In：In step (5), when measured value is more than 0.002mm with actual value error, measurement parameter offset Correlation
Offset is actual to be should be " 0 ", and arranges value is not " 0 ", by measurement parameter offset Correlation Offset columns in software more
It is changed to " 0 ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465959.6A CN107340122A (en) | 2017-06-19 | 2017-06-19 | A kind of sizer measures inaccurate failure problems analysis with solving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465959.6A CN107340122A (en) | 2017-06-19 | 2017-06-19 | A kind of sizer measures inaccurate failure problems analysis with solving method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747678A (en) * | 1994-11-08 | 1998-05-05 | Siemens Aktiengesellschaft | Method for detecting crankshaft oscillations |
| CN101738156A (en) * | 2010-01-23 | 2010-06-16 | 桂林福达曲轴有限公司 | Detection method of vehicle engine crankshaft key slot |
| CN101833331A (en) * | 2010-05-21 | 2010-09-15 | 北京理工大学 | Testing system and method for electronic control unit of automobile engine |
| CN102901633A (en) * | 2012-08-29 | 2013-01-30 | 长城汽车股份有限公司 | Quick centering device for engine pedestal test |
-
2017
- 2017-06-19 CN CN201710465959.6A patent/CN107340122A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747678A (en) * | 1994-11-08 | 1998-05-05 | Siemens Aktiengesellschaft | Method for detecting crankshaft oscillations |
| CN101738156A (en) * | 2010-01-23 | 2010-06-16 | 桂林福达曲轴有限公司 | Detection method of vehicle engine crankshaft key slot |
| CN101833331A (en) * | 2010-05-21 | 2010-09-15 | 北京理工大学 | Testing system and method for electronic control unit of automobile engine |
| CN102901633A (en) * | 2012-08-29 | 2013-01-30 | 长城汽车股份有限公司 | Quick centering device for engine pedestal test |
Non-Patent Citations (1)
| Title |
|---|
| 唐建军: "分组机测量不准确的故障分析与解决措施", 《金属加工(冷加工)》 * |
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