CN106525309A - Detection method of detecting corresponding relation between residual stress and crankshaft deformation - Google Patents
Detection method of detecting corresponding relation between residual stress and crankshaft deformation Download PDFInfo
- Publication number
- CN106525309A CN106525309A CN201610887749.1A CN201610887749A CN106525309A CN 106525309 A CN106525309 A CN 106525309A CN 201610887749 A CN201610887749 A CN 201610887749A CN 106525309 A CN106525309 A CN 106525309A
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- residual stress
- bent axle
- stress
- deformation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
Abstract
The invention discloses a detection method of detecting corresponding relation between residual stress and crankshaft deformation. The detection method comprises steps that S1, device preparation: a measuring frame, a run-out measuring device, a four-eye 3D scanning device, and an ASMB1-16 static resistance strain meter are adopted; S2, crankshaft setup: the to-be-detected crankshaft after quenching is disposed on a V-shaped support of a detection platform. The run-out measuring device is used to measure circle run-out quantity of a crankshaft sample, and is used to make a detailed record, and the four-eye 3D scanning device is used for three-dimensional scanning of an outer contour of a crankshaft forging sample; a crankshaft deformation rule is detected and determined by analyzing run-out data and scanning the acquired 3D virtual model; a residual stress measuring point position is determined according to a crankshaft structural characteristic and a deformation rule, and a blind-hole method is used for testing various stress of measuring points, and then the stress data of the crankshaft stress measuring points is acquired, and the crankshaft sample residual stress distribution rule is acquired, and therefore an object of detecting the corresponding relation between the residual stress and the crankshaft deformation is achieved.
Description
Technical field
The present invention relates to technical field of diesel locomotive, more particularly to one kind probes into residual stress and crankshaft deformation correlation
Detection method.
Background technology
Bent axle is the one of the most key constituting portion in internal combustion engine point, and it directly affects the reliability of diesel engine and uses the longevity
Life, but its own planform is complicated, and course of work environment is special, and Technology for Heating Processing has significant impact, bent axle to its quality
In heat treatment process, because inside parts temperature distributing disproportionation it is even, structural transformation process uneven and form thermal stress and phase transformation
Stress, when thermal stress and larger transformation stress, can affect to the structure property of bent axle and dimensional accuracy, draw
Play bent axle to be deformed, even cause bent axle cracking when serious and scrap, bent axle is the critical component for transmitting kinetic energy, piston it is past
Multiple motion is changed into rotary motion by bent axle, so as to export the power of diesel engine, as heavy-duty crankshaft is complex-shaped, rigidity
The features such as difference, working environment are complicated, is the impact for ensureing to bear moment of torsion, moment of flexure and dynamic loading etc., its structural strength, rigidity,
The aspect such as dimensional accuracy and mass balance, has very high requirement, it is to avoid or reduce bent axle deformation in process be
A difficult point during Crankshaft Machining.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes that one kind probes into residual stress and crankshaft deformation is mutual
The detection method of relation is used for solving existing locomotive bent axle that larger deformation easily occurs to be overproof, it is impossible to tune up, affect it is follow-up plus
The deficiency of work.
A kind of detection method for probing into residual stress and crankshaft deformation correlation proposed by the present invention, including following step
Suddenly：
S1：Instrument prepares, and is strained from measurement bay, jump measuring instrument, four mesh 3D scanners and ASMB1-16 static resistances
Instrument；
S2：Bent axle clamping, it would be desirable to which the bent axle after the quenching of detection is placed on the V-type support of detection platform, to quenching
Bent axle afterwards is checked, then the two ends trunnion of the bent axle after quenching is placed on measurement bay；
S3：Circular runout is measured, turning crankshaft, measures each main shaft of bent axle while turning crankshaft with jump measuring instrument
The radial beat eccentricity of neck and orientation, and note down, determine the exceeded trunnion of radial beat eccentricity and direction；
S4：3-D scanning, assembles four mesh 3D scanners and line, then adjusts aperture, carry out Light Source Compensation, then
Camera calibration is carried out, three-dimensional measurement is carried out to bent axle with four mesh 3D scanners finally；
S5：Determine residual stress point position, the 3D dummy models that analysis bounce data and scanning are obtained determine song
Shaft distortion rule, determines residual stress point position according to crankshaft structure feature and deformation rule；
S6：Stress measurement, prepares ASMB1-16 static resistance deformeters, is polished, so after selecting stress test point
Alcohol washes test point is used afterwards, is pasted the foil gauge of ASMB1-16 static resistance deformeters with moment bonding agent, then is carried out data
The connection of line, with electric iron welding data line, finally accesses perforating device；
S7：Data processing, after test residual stress, data wire is removed, site clearing, carries out data point with computer software
Analysis, draws STRESS VARIATION table.
Preferably, in the S3, after bent axle clamping, the circular runout of bent axle sample is entered using jump measuring instrument
Row measurement simultaneously carries out record in detail.
Preferably, in the S4,3-D scanning is carried out to crankshaft forging sample outline with four mesh 3D scanners.
Preferably, in the S6, the method for stress measurement is Blind Hole Method.
It is in the present invention, described a kind of to probe into residual stress and the detection method of crankshaft deformation correlation utilizes pulsation measurement
Instrument measures and carries out in detail record to the circular runout of bent axle sample, using four mesh 3D scanners to crankshaft forging sample outside
Profile carries out 3-D scanning；The 3D dummy models that analysis bounce data and scanning are obtained, determine crankshaft deformation rule；According to
Crankshaft structure feature and deformation rule determine residual stress point position, each measuring point stress are tested using Blind Hole Method, and
Obtain the stress data of crankshaft stress measuring point, obtain bent axle sample residual stress distribution rule, with reach probe into residual stress and
The purpose of the correlation of crankshaft deformation.
Specific embodiment
The present invention is further explained with reference to specific embodiment.
Embodiment
The present embodiment proposes a kind of detection method for probing into residual stress and crankshaft deformation correlation, including following step
Suddenly：
S1：Instrument prepares, and is strained from measurement bay, jump measuring instrument, four mesh 3D scanners and ASMB1-16 static resistances
Instrument；
S2：Bent axle clamping, it would be desirable to which the bent axle after the quenching of detection is placed on the V-type support of detection platform, to quenching
Bent axle afterwards is checked, then the two ends trunnion of the bent axle after quenching is placed on measurement bay；
S3：Circular runout is measured, turning crankshaft, measures each main shaft of bent axle while turning crankshaft with jump measuring instrument
The radial beat eccentricity of neck and orientation, and note down, determine the exceeded trunnion of radial beat eccentricity and direction；
S4：3-D scanning, assembles four mesh 3D scanners and line, then adjusts aperture, carry out Light Source Compensation, then
Camera calibration is carried out, three-dimensional measurement is carried out to bent axle with four mesh 3D scanners finally；
S5：Determine residual stress point position, the 3D dummy models that analysis bounce data and scanning are obtained determine song
Shaft distortion rule, determines residual stress point position according to crankshaft structure feature and deformation rule；
S6：Stress measurement, prepares ASMB1-16 static resistance deformeters, is polished, so after selecting stress test point
Alcohol washes test point is used afterwards, is pasted the foil gauge of ASMB1-16 static resistance deformeters with moment bonding agent, then is carried out data
The connection of line, with electric iron welding data line, finally accesses perforating device；
S7：Data processing, after test residual stress, data wire is removed, site clearing, carries out data point with computer software
Analysis, draws STRESS VARIATION table.
In the present embodiment, in S3, after bent axle clamping, the circular runout of bent axle sample is entered using jump measuring instrument
Row measurement simultaneously carries out record in detail, in S4, carries out 3-D scanning, S6 with four mesh 3D scanners to crankshaft forging sample outline
In, the method for stress measurement is Blind Hole Method, and a kind of detection method of residual stress and crankshaft deformation correlation of probing into is using jump
Dynamic measuring instrument is measured to the circular runout of bent axle sample and carries out record in detail, using four mesh 3D scanners to crankshaft forging
Sample outline carries out 3-D scanning；The 3D dummy models that analysis bounce data and scanning are obtained, determine crankshaft deformation rule
Rule；Residual stress point position is determined according to crankshaft structure feature and deformation rule, each measuring point stress is carried out using Blind Hole Method
Test, and the stress data of crankshaft stress measuring point is obtained, bent axle sample residual stress distribution rule is obtained, and remnants is probed into reach
The purpose of the correlation of stress and crankshaft deformation.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, should all be included within the scope of the present invention.
Claims (4)
1. a kind of detection method for probing into residual stress and crankshaft deformation correlation, it is characterised in that comprise the following steps：
S1：Instrument prepares, from measurement bay, jump measuring instrument, four mesh 3D scanners and ASMB1-16 static resistance deformeters；
S2：Bent axle clamping, it would be desirable to which the bent axle after the quenching of detection is placed on the V-type support of detection platform, after quenching
Bent axle is checked, then the two ends trunnion of the bent axle after quenching is placed on measurement bay；
S3：Circular runout is measured, turning crankshaft, measures each trunnion of bent axle while turning crankshaft with jump measuring instrument
Radial beat eccentricity and orientation, and note down, determine the exceeded trunnion of radial beat eccentricity and direction；
S4：3-D scanning, assembles four mesh 3D scanners and line, then adjusts aperture, carry out Light Source Compensation, then carry out
Camera calibration, finally carries out three-dimensional measurement with four mesh 3D scanners to bent axle；
S5：Determine residual stress point position, the 3D dummy models that analysis bounce data and scanning are obtained determine bent axle change
Shape rule, determines residual stress point position according to crankshaft structure feature and deformation rule；
S6：Stress measurement, prepares ASMB1-16 static resistance deformeters, is polished after selecting stress test point, Ran Houyong
Alcohol washes test point, pastes the foil gauge of ASMB1-16 static resistance deformeters with moment bonding agent, then carries out data wire
Connection, with electric iron welding data line, finally accesses perforating device；
S7：Data processing, after test residual stress, data wire is removed, site clearing, carries out data analysis with computer software,
Draw STRESS VARIATION table.
2. a kind of detection method for probing into residual stress and crankshaft deformation correlation according to claim 1, its feature
It is, in the S3, after bent axle clamping, the circular runout of bent axle sample to be measured and done using jump measuring instrument
It is good to record in detail.
3. a kind of detection method for probing into residual stress and crankshaft deformation correlation according to claim 1, its feature
It is, in the S4,3-D scanning to be carried out to crankshaft forging sample outline with four mesh 3D scanners.
4. a kind of detection method for probing into residual stress and crankshaft deformation correlation according to claim 1, its feature
It is that, in the S6, the method for stress measurement is Blind Hole Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887749.1A CN106525309A (en) | 2016-10-11 | 2016-10-11 | Detection method of detecting corresponding relation between residual stress and crankshaft deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887749.1A CN106525309A (en) | 2016-10-11 | 2016-10-11 | Detection method of detecting corresponding relation between residual stress and crankshaft deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106525309A true CN106525309A (en) | 2017-03-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610887749.1A Pending CN106525309A (en) | 2016-10-11 | 2016-10-11 | Detection method of detecting corresponding relation between residual stress and crankshaft deformation |
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| CN (1) | CN106525309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726563A (en) * | 2018-07-16 | 2020-01-24 | 奇瑞捷豹路虎汽车有限公司 | Vehicle detection method and system |
| CN113988587A (en) * | 2021-10-26 | 2022-01-28 | 威海天润智能科技有限公司 | Crankshaft detection device and method and electronic equipment |
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| CN1410181A (en) * | 2002-11-08 | 2003-04-16 | 中国第一汽车集团大连柴油机厂 | Correcting unit for engine crank shaft deformation and correcting method |
| DE10254206A1 (en) * | 2002-11-20 | 2004-06-17 | Boehringer Werkzeugmaschinen Gmbh | Crankshaft turning procedure uses form and stress sensors to control driven C axis to compensate torsional prestresses during manufacture |
| CN1603812A (en) * | 2004-10-28 | 2005-04-06 | 上海交通大学 | Detection method for residual fatigue life of automobile obsolete crankshaft |
| CN102778316A (en) * | 2011-06-02 | 2012-11-14 | 北京印刷学院 | Die cutting pressure testing method and device |
| CN105067167A (en) * | 2015-09-24 | 2015-11-18 | 桂林电子科技大学 | Method for testing residual stress distribution of ram casting for large-scale machine tool by blind hole method |
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2016
- 2016-10-11 CN CN201610887749.1A patent/CN106525309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410181A (en) * | 2002-11-08 | 2003-04-16 | 中国第一汽车集团大连柴油机厂 | Correcting unit for engine crank shaft deformation and correcting method |
| DE10254206A1 (en) * | 2002-11-20 | 2004-06-17 | Boehringer Werkzeugmaschinen Gmbh | Crankshaft turning procedure uses form and stress sensors to control driven C axis to compensate torsional prestresses during manufacture |
| CN1603812A (en) * | 2004-10-28 | 2005-04-06 | 上海交通大学 | Detection method for residual fatigue life of automobile obsolete crankshaft |
| CN102778316A (en) * | 2011-06-02 | 2012-11-14 | 北京印刷学院 | Die cutting pressure testing method and device |
| CN105067167A (en) * | 2015-09-24 | 2015-11-18 | 桂林电子科技大学 | Method for testing residual stress distribution of ram casting for large-scale machine tool by blind hole method |
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| 黄强先等: "表层残余应力对轴径热变形误差计算的影响", 《仪器仪表学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726563A (en) * | 2018-07-16 | 2020-01-24 | 奇瑞捷豹路虎汽车有限公司 | Vehicle detection method and system |
| CN110726563B (en) * | 2018-07-16 | 2021-10-12 | 奇瑞捷豹路虎汽车有限公司 | Vehicle detection method and system |
| CN113988587A (en) * | 2021-10-26 | 2022-01-28 | 威海天润智能科技有限公司 | Crankshaft detection device and method and electronic equipment |
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Application publication date: 20170322 |