CN107900783A - A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle - Google Patents
A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle Download PDFInfo
- Publication number
- CN107900783A CN107900783A CN201810045440.7A CN201810045440A CN107900783A CN 107900783 A CN107900783 A CN 107900783A CN 201810045440 A CN201810045440 A CN 201810045440A CN 107900783 A CN107900783 A CN 107900783A
- Authority
- CN
- China
- Prior art keywords
- front axle
- facing cut
- automobile front
- finished product
- semi
- 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.)
- Pending
Links
- 238000003908 quality control method Methods 0.000 title claims abstract description 13
- 239000011265 semifinished product Substances 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 238000012797 qualification Methods 0.000 claims description 6
- 208000020442 loss of weight Diseases 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
Abstract
The invention discloses a kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle, utilize the special gauge being made of base, leaf spring face seat and flexible positioning mechanism, whether six facing cut roughing semi-finished product of automobile front axle are arranged at special gauge, and qualified with the flatness of the leaf spring face of clearance gauge detection six facing cut roughing semi-finished product of automobile front axle；Leaf spring face seat is provided with plane control block, and whether the leaf spring face of observation six facing cut roughing semi-finished product of automobile front axle can be completely covered plane control block, from the point of view of it is whether qualified；And six facing cut roughing semi-finished product of automobile front axle can corrected in modified scope.The beneficial effect of this programme can learn whether front axle semi-finished product can meet that subsequently finishing to the technological requirement of front axle roughing part, effectively avoids the occurrence of outer useless after quickly judging six facing cut roughing according to the narration to such scheme；The defective products of six facing cut roughing front axle of part can also be modified before postorder processing.
Description
Technical field
The present invention relates to automobile front axle detection field, more particularly to a kind of six facing cut roughing semi-manufactured goods quality of automobile front axle
Control method.
Background technology
Front axle semi-finished product after six facing cut roughing, except leaf spring face flatness to be ensured, spindle nose and leaf spring face drop and
Spindle nose size, also to ensure the U-bolts hole of following process the thin situation of hole wall must not occurs.But current detection hand
Section, after can only effectively detecting front axle roughing, existing means can only detect falling for the flatness of leaf spring face, spindle nose and leaf spring face
Difference, spindle nose size, and for spring block be likely to occur because of blank in forging, turned round there may be spindle nose in heat treatment process, plate
Spring face can cause the thin situation of the wall in following process U-bolts hole partially etc., can not effectively be detected.Current detection side
Method is, after six facing cut roughing of front axle, by face plate on semi-finished product, carries out the line of leaf spring face flatness using height gauge and surveys
Amount.Whether leaf spring face can meet the problem of follow-up finishing step drill bolt hole ensures minimum wall thickness (MINI W.), can not measure, can only be by
Front axle after six facing cut roughing is sent to subsequent fine process unit, to leaf spring face drill bolt hole, then judges the minimal wall of bolt hole
Whether thickness meets technological requirement.There is the situation less than minimum wall thickness (MINI W.), directly sentence useless.
The content of the invention
The present invention be directed to the deficiency present in the prior art, and provide a kind of simple in structure, design rationally, can be quick
Whether front axle semi-finished product can meet technological requirement of the subsequently finishing to front axle roughing part after judging six facing cut roughing,
Effectively avoid the occurrence of outer useless；The defective products of six facing cut roughing front axle of part can also be modified before postorder processing
A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle.
To achieve these goals, the present invention provides a kind of six facing cut roughing semi-manufactured goods quality controlling party of automobile front axle
Method, using the special gauge being made of base, leaf spring face seat and flexible positioning mechanism, six facing cut roughing of automobile front axle half into
Whether product are arranged at special gauge, and closed with the flatness of the leaf spring face of clearance gauge detection six facing cut roughing semi-finished product of automobile front axle
Lattice；Leaf spring face seat is provided with plane control block, and whether the leaf spring face of observation six facing cut roughing semi-finished product of automobile front axle can be complete
Overlay planes compare block, from the point of view of it is whether qualified；And six facing cut roughing semi-finished product of automobile front axle can corrected in modified scope.
Specifically, the present invention is a kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle, including following step
Suddenly：
Step 1：Six facing cut roughing semi-finished product of automobile front axle are arranged at special gauge, row position of going forward side by side is adjusted and fixed；
Step 2：The flatness of the leaf spring face processing of six facing cut roughing semi-finished product of automobile front axle is detected, is wanted if flatness is not met
Ask, then carry out step 3；
If flatness meets the requirements, step 4 is carried out；
Step 3：The thickness of the leaf spring face of six facing cut roughing semi-finished product of automobile front axle is measured, if thickness is more than nominal size,
Six facing cut processes are returned to re-work；
If thickness is not more than nominal size, it is determined as unqualified；
Step 4：Whether the leaf spring face of detection six facing cut roughing semi-finished product of automobile front axle covers the flat shape of setting, if covering
The flat shape of setting, then be determined as qualification；
If the flat shape of setting cannot be covered, step 5 is carried out；
Step 5：Whether the spindle nose of detection six facing cut roughing semi-finished product of automobile front axle carried out amendment, was judged to not conforming to if having
Lattice；
If the progress step 6 without if；
Step 6：The amendment for being not more than 2mm is carried out to the spindle nose of six facing cut roughing semi-finished product of automobile front axle, and carries out step 4.
Wherein, the special gauge includes base, and the base is strip, is provided with the middle part of the base for branch
The leaf spring face seat of the leaf spring face of the six facing cut roughing semi-finished product of front axle is supportted, shape is provided with as institute at the top of the leaf spring face seat
State the plane control block of the flat shape of setting；
The base is provided with flexible positioning mechanism, and the flexible positioning mechanism includes being arranged on the base longitudinal direction
Groove, be provided with gear in the middle part of the groove, the gear upper and lower is respectively connected with rack, and the rack is connected to
Pull rod, the pull rod are located in the groove, and the end of the pull rod is connected with sliding block, and the top of the sliding block is provided with V-arrangement
Block, the vee-block notch are opposite；
The gear shaft is connected with handwheel；
Both sides of the leaf spring face seat two bottom sides respectively with the groove are fixedly connected, and the leaf spring face seat is provided with loss of weight
Hole.
Further, adjustment and fixation of the step 1 to the position of the six facing cut roughing semi-finished product of automobile front axle,
Completed by the flexible positioning mechanism, specially by the spindle nose at the six facing cut roughing semi-finished product both ends of automobile front axle and institute
The cooperation of vee-block notch is stated, rotating the handwheel makes the vee-block clamp the six facing cut roughing semi-finished product of automobile front axle.
Further, the specific measuring method of the step 2 is, using six facing cut roughing of clearance gauge detection automobile front axle half into
The gap of product leaf spring face and special gauge leaf spring face seat, the 0.2mm tents of clearance gauge do not enter, and are considered as qualification.
Further, the step 3 measures the thickness of the leaf spring face of the six facing cut roughing semi-finished product of automobile front axle
Instrument is vernier caliper.
Further, the step 4 detects whether the flat shape of covering setting, specially detects whether to cover described flat
In face of according to block.
Further, the equipment that the step 6 is modified spindle nose is the instruments such as angle grinder.
The beneficial effect of this programme can be learnt according to the narration to such scheme, simple in structure, and design is reasonable, if there is
Cubing spring block has situation about cannot cover, then in follow-up finishing passes, the bolt hole of leaf spring face will go out the front axle
It cannot now meet the requirement of bolt hole minimum wall thickness (MINI W.), occur that wall is thin to be scrapped, thus with this method, can quickly judge six facing cuts
Whether front axle semi-finished product can meet that subsequently finishing to the technological requirement of front axle roughing part, effectively avoids the occurrence of after roughing
It is outer useless；It can also it is enough before postorder processing, the defective products of six facing cut roughing front axle of part is modified.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is A-A sectional views of Fig. 1；
In figure, 1, base；2nd, leaf spring face seat；3rd, plane control block；4th, groove；5th, gear；6th, rack；7th, pull rod；8th, sliding block；9、
Vee-block；10th, handwheel.
Embodiment
In order to clarify the technical characteristics of the invention, below by embodiment, this programme is illustrated.
The present embodiment is a kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle, is comprised the following steps：
Step 1：Six facing cut roughing semi-finished product of automobile front axle are arranged at special gauge, row position of going forward side by side is adjusted and fixed；
As shown in Figs. 1-3, special gauge includes base 1, and base 1 is strip, and the middle part of base 1, which is provided with, is used to support front axle
The leaf spring face seat 2 of the leaf spring face of six facing cut roughing semi-finished product, the top of leaf spring face seat 2 are provided with flat shape of the shape for setting
Plane control block 3；
Base 1 is provided with flexible positioning mechanism, and flexible positioning mechanism includes the groove 4 for being arranged on base longitudinal direction, recessed
The middle part of groove 4 is provided with gear 5, and 5 upper and lower of gear is respectively connected with rack 6, and rack 6 is connected to pull rod 7, and pull rod 7 is located at
In groove 4, the end of pull rod 7 is connected with sliding block 8, and the top of sliding block 8 is provided with vee-block 9, and 9 notch of vee-block is opposite；
5 axis connection of gear has handwheel 10；
Both sides of 2 two bottom sides of leaf spring face seat respectively with groove 4 are fixedly connected, and leaf spring face seat 2 is provided with lightening hole；
Adjustment and fixation to the position of six facing cut roughing semi-finished product of automobile front axle, are completed, specifically by flexible positioning mechanism
For the spindle nose at six facing cut roughing semi-finished product both ends of automobile front axle and 9 notch of vee-block are coordinated, rotation hand wheel 10 presss from both sides vee-block 9
Six facing cut roughing semi-finished product of tight automobile front axle.
Step 2：The flatness of the leaf spring face processing of six facing cut roughing semi-finished product of automobile front axle is detected, if flatness is not inconsistent
Close and require, then carry out step 3；
If flatness meets the requirements, step 4 is carried out；
Specific measuring method is to use clearance gauge detection six facing cut roughing semi-finished product leaf spring face of automobile front axle and special gauge leaf spring
The gap of face seat, the 0.2mm tents of clearance gauge do not enter, and are considered as qualification.
Step 3：The thickness of the leaf spring face of six facing cut roughing semi-finished product of automobile front axle is measured, if thickness is more than nominal ruler
It is very little, then return to six facing cut processes and re-work；
If thickness is not more than nominal size, it is determined as unqualified；
The instrument for measuring the thickness of the leaf spring face of six facing cut roughing semi-finished product of automobile front axle is vernier caliper.
Step 4：Whether the leaf spring face of detection six facing cut roughing semi-finished product of automobile front axle covers the flat shape of setting, if
The flat shape of setting is covered, then is determined as qualification；
If the flat shape of setting cannot be covered, step 5 is carried out；
Detect whether the flat shape of covering setting, specially detect whether that overlay planes compare block.
Step 5：Whether the spindle nose of detection six facing cut roughing semi-finished product of automobile front axle carried out amendment, was determined as if having
It is unqualified；
If the progress step 6 without if；
Step 6：The amendment for being not more than 2mm is carried out to the spindle nose of six facing cut roughing semi-finished product of automobile front axle, and carries out step 4；
The equipment being modified to spindle nose is the instruments such as angle grinder.
Technical characteristic of the invention without description can realize that details are not described herein by or using the prior art, certainly,
It is limitation of the present invention that described above, which is not, and the present invention is also not limited to the example above, the ordinary skill of the art
The variations, modifications, additions or substitutions that personnel are made in the essential scope of the present invention, should also belong to the protection model of the present invention
Enclose.
Claims (7)
1. a kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle, it is characterised in that comprise the following steps：
Step 1：Six facing cut roughing semi-finished product of automobile front axle are arranged at special gauge, row position of going forward side by side is adjusted and fixed；
Step 2：The flatness of the leaf spring face processing of six facing cut roughing semi-finished product of automobile front axle is detected, is wanted if flatness is not met
Ask, then carry out step 3；
If flatness meets the requirements, step 4 is carried out；
Step 3：The thickness of the leaf spring face of six facing cut roughing semi-finished product of automobile front axle is measured, if thickness is more than nominal size,
Six facing cut processes are returned to re-work；
If thickness is not more than nominal size, it is determined as unqualified；
Step 4：Whether the leaf spring face of detection six facing cut roughing semi-finished product of automobile front axle covers the flat shape of setting, if covering
The flat shape of setting, then be determined as qualification；
If the flat shape of setting cannot be covered, step 5 is carried out；
Step 5：Whether the spindle nose of detection six facing cut roughing semi-finished product of automobile front axle carried out amendment, was judged to not conforming to if having
Lattice；
If the progress step 6 without if；
Step 6：The amendment for being not more than 2mm is carried out to the spindle nose of six facing cut roughing semi-finished product of automobile front axle, and carries out step 4.
2. six facing cut roughing semi-manufactured goods quality control method of a kind of automobile front axle according to claim 1, its feature exist
In the special gauge includes base, and the base is strip, is provided with the middle part of the base and is used to support the front axle
The leaf spring face seat of the leaf spring face of six facing cut roughing semi-finished product, the leaf spring face seat top are provided with shape as the flat of the setting
The plane control block of face shape；
The base is provided with flexible positioning mechanism, and the flexible positioning mechanism includes being arranged on the base longitudinal direction
Groove, be provided with gear in the middle part of the groove, the gear upper and lower is respectively connected with rack, and the rack is connected to
Pull rod, the pull rod are located in the groove, and the end of the pull rod is connected with sliding block, and the top of the sliding block is provided with V-arrangement
Block, the vee-block notch are opposite；
The gear shaft is connected with handwheel；
Both sides of the leaf spring face seat two bottom sides respectively with the groove are fixedly connected, and the leaf spring face seat is provided with loss of weight
Hole.
3. six facing cut roughing semi-manufactured goods quality control method of a kind of automobile front axle according to claim 2, its feature exist
In adjustment and fixation of the step 1 to the position of the six facing cut roughing semi-finished product of automobile front axle, by described movable fixed
Position mechanism completes, and specially matches somebody with somebody the spindle nose at the six facing cut roughing semi-finished product both ends of automobile front axle with the vee-block notch
Close, rotating the handwheel makes the vee-block clamp the six facing cut roughing semi-finished product of automobile front axle.
4. the six facing cut roughing semi-manufactured goods quality control method of a kind of automobile front axle according to Claims 2 or 3, its feature
It is, the specific measuring method of step 2 is, using clearance gauge detection six facing cut roughing semi-finished product leaf spring face of automobile front axle and specially
With the gap of cubing leaf spring face seat, the 0.2mm tents of clearance gauge do not enter, and are considered as qualification.
5. the six facing cut roughing semi-manufactured goods quality control method of a kind of automobile front axle according to Claims 2 or 3, its feature
It is, the instrument that the step 3 measures the thickness of the leaf spring face of the six facing cut roughing semi-finished product of automobile front axle is vernier calliper
Ruler.
6. the six facing cut roughing semi-manufactured goods quality control method of a kind of automobile front axle according to Claims 2 or 3, its feature
It is, the step 4 detects whether the flat shape of covering setting, specially detects whether to cover the plane control block.
7. the six facing cut roughing semi-manufactured goods quality control method of a kind of automobile front axle according to Claims 2 or 3, its feature
It is, the equipment that the step 6 is modified spindle nose is the instruments such as angle grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045440.7A CN107900783A (en) | 2018-01-17 | 2018-01-17 | A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045440.7A CN107900783A (en) | 2018-01-17 | 2018-01-17 | A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107900783A true CN107900783A (en) | 2018-04-13 |
Family
ID=61871054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810045440.7A Pending CN107900783A (en) | 2018-01-17 | 2018-01-17 | A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107900783A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260741A (en) * | 1997-06-17 | 2000-07-19 | 诺顿公司 | Method for improving wear resistance of abrasive tools |
| CN2694252Y (en) * | 2004-04-23 | 2005-04-20 | 中国重型汽车集团有限公司 | Detecting instrument of automobile front axle |
| CN101972950A (en) * | 2010-08-27 | 2011-02-16 | 江苏曙光华阳钻具有限公司 | Wall thickness measuring device by tracking for drilling inner hole of drill collar |
| CN201792005U (en) * | 2010-08-27 | 2011-04-13 | 江苏曙光华阳钻具有限公司 | Wall thickness tracking measurement device for drilling of inner bores of drill collars |
| JP2015020270A (en) * | 2013-07-23 | 2015-02-02 | 株式会社 神崎高級工機製作所 | Boring device |
| CN104493239A (en) * | 2014-11-26 | 2015-04-08 | 芜湖普威技研有限公司 | Annular part ring wall drilling device |
| CN204944414U (en) * | 2015-08-21 | 2016-01-06 | 庆铃汽车（集团）有限公司 | Automobile front axle comprehensive check tool |
| CN205970695U (en) * | 2016-08-22 | 2017-02-22 | 天津市冠通汽车部件制造有限公司 | Automobile front axle assembly |
| CN106768860A (en) * | 2016-12-09 | 2017-05-31 | 江西科技学院 | Car lighting lamp check method and device |
| CN106925997A (en) * | 2015-12-29 | 2017-07-07 | 上海发那科机器人有限公司 | A kind of automatic drill milling system and method, brill milling production line |
| CN107344251A (en) * | 2017-07-13 | 2017-11-14 | 上海拓璞数控科技股份有限公司 | The mirror image method for milling and system of covering processing |
| CN207788442U (en) * | 2018-01-17 | 2018-08-31 | 朱舸 | A kind of six facing cut roughing semi-manufactured goods quality of automobile front axle control cubing |
-
2018
- 2018-01-17 CN CN201810045440.7A patent/CN107900783A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260741A (en) * | 1997-06-17 | 2000-07-19 | 诺顿公司 | Method for improving wear resistance of abrasive tools |
| CN2694252Y (en) * | 2004-04-23 | 2005-04-20 | 中国重型汽车集团有限公司 | Detecting instrument of automobile front axle |
| CN101972950A (en) * | 2010-08-27 | 2011-02-16 | 江苏曙光华阳钻具有限公司 | Wall thickness measuring device by tracking for drilling inner hole of drill collar |
| CN201792005U (en) * | 2010-08-27 | 2011-04-13 | 江苏曙光华阳钻具有限公司 | Wall thickness tracking measurement device for drilling of inner bores of drill collars |
| JP2015020270A (en) * | 2013-07-23 | 2015-02-02 | 株式会社 神崎高級工機製作所 | Boring device |
| CN104493239A (en) * | 2014-11-26 | 2015-04-08 | 芜湖普威技研有限公司 | Annular part ring wall drilling device |
| CN204944414U (en) * | 2015-08-21 | 2016-01-06 | 庆铃汽车（集团）有限公司 | Automobile front axle comprehensive check tool |
| CN106925997A (en) * | 2015-12-29 | 2017-07-07 | 上海发那科机器人有限公司 | A kind of automatic drill milling system and method, brill milling production line |
| CN205970695U (en) * | 2016-08-22 | 2017-02-22 | 天津市冠通汽车部件制造有限公司 | Automobile front axle assembly |
| CN106768860A (en) * | 2016-12-09 | 2017-05-31 | 江西科技学院 | Car lighting lamp check method and device |
| CN107344251A (en) * | 2017-07-13 | 2017-11-14 | 上海拓璞数控科技股份有限公司 | The mirror image method for milling and system of covering processing |
| CN207788442U (en) * | 2018-01-17 | 2018-08-31 | 朱舸 | A kind of six facing cut roughing semi-manufactured goods quality of automobile front axle control cubing |
Non-Patent Citations (1)
| Title |
|---|
| 李文新;: "汽车NKR前轴机械加工工艺方案的制定与难点", 黑龙江科技信息, no. 12, pages 39 - 40 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9902024B2 (en) | Method and device for repairing an aircraft and/or gas turbine component | |
| JP5036714B2 (en) | Independent measuring device for grinding machines | |
| US10228303B2 (en) | Flexible automation cell for performing secondary operations in concert with a machining center and roll check operations | |
| EP2480383B1 (en) | Quality control system and method for manufactured parts | |
| CN109520400B (en) | Integrated device for angular correction and detection of turbine supporting casing supporting plate | |
| DE102013207013A1 (en) | Double-sided surface grinding and double-sided surface grinder | |
| CN107755887A (en) | A kind of automobile buffer beam detects orthopedic mark integrating device | |
| CN207788442U (en) | A kind of six facing cut roughing semi-manufactured goods quality of automobile front axle control cubing | |
| EP2615413B1 (en) | Method and a device for eliminating errors in car body parts | |
| CN107900783A (en) | A kind of six facing cut roughing semi-manufactured goods quality control method of automobile front axle | |
| EP2103378A1 (en) | Tool wear in processing machines | |
| Suyuti et al. | The Influence of Punch Angle on the Spring Back during V-Bending of Medium Carbon Steel | |
| US10245630B2 (en) | Smart fixture distortion correction system | |
| CN212320566U (en) | Detection tool for right side outer guard plate of automobile copilot | |
| CN115890175A (en) | Inner gear ring machining process | |
| CN112404569B (en) | Tool for assembling flying shear shearing mechanism and operation method thereof | |
| CN210774181U (en) | Online strip steel detection equipment | |
| CN207309327U (en) | View-based access control model guides articulated robot assembly machine | |
| DE2532675A1 (en) | MEASURING METHOD FOR A BEARING | |
| CN109163644A (en) | It is a kind of for detecting the device of keyway symmetry | |
| KR101670851B1 (en) | revision apparatus and measurement for flatness of plate | |
| CN109894378B (en) | Online automatic detection method for steering heat-saving forge piece | |
| CN107655434B (en) | Detection equipment for parts | |
| JPH0480771B2 (en) | ||
| Gavrilovs et al. | Research in passenger car bogie central suspension roller and rod base metal and welded metal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |