CN106643389B - A method of detection multistage subsection formula gear pump case block position degree - Google Patents
A method of detection multistage subsection formula gear pump case block position degree Download PDFInfo
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- CN106643389B CN106643389B CN201611170924.1A CN201611170924A CN106643389B CN 106643389 B CN106643389 B CN 106643389B CN 201611170924 A CN201611170924 A CN 201611170924A CN 106643389 B CN106643389 B CN 106643389B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Abstract
The invention belongs to mechanical processing technique fields, and in particular to a method of detection multistage subsection formula gear pump case block position degree.This method is by the way that active process mandrel and driven technique mandrel to be inserted into active axis hole and driven-shaft hole from top to bottom respectively, detect the block position degree of the active axis hole and driven-shaft hole in lower section pump cases at different levels, when being inserted into the bottom of axis hole, then lower section pump case position degrees at different levels are qualified；Upper section junior pump case is covered on active process mandrel and driven technique mandrel, if it is possible to put on, then upper section junior pump case position degree is qualified；Upper section higher level's pump case is covered on driving and driven technique mandrel, then upper section higher level pump case and upper section junior pump case are fixedly mounted on pump group shell, if it is possible to be installed in place, then the position degree of upper section higher level pump case is qualified；The detection method does not increase the original processing technique and manufacture difficulty of pump cases at different levels, has wide application value in multistage pump group processing and manufacturing technology.
Description
【Technical field】
The invention belongs to mechanical processing technique fields, and in particular to a kind of detection multistage subsection formula gear pump case block position
The method of degree.
【Background technique】
According to multistage subsection formula gear pump working service situation, discovery uses rear pump gears at different levels and the state of wear of shell
There are the abnormal damage for influencing to work normally occur in larger difference, or even part pump use.Analyze it is this be seriously worn or
The reason of abnormal damage, it is believed that the relative position between multistage pump group shell is very big on the influence of the working condition of pump, needs to improve
The block position degree of a whole set of all pump cases of pump group.Pump case body processing technologies and precision improvement at different levels are difficult, need to find effective
Solution.
It inquired, retrieve China State Intellectual Property Office website, GOOGLE patent search system and other related web sites, still
Pertinent literature similar with the content of present invention and report are not found.
【Summary of the invention】
In order to solve the problems in the prior art, control reduces pump case gear mounting shaft at different levels hole in free state and work
State difference after load, the purpose of the present invention is to provide a kind of determining multistage subsection formula gear pump case block position degree
Method solves in the case where pump case body processing technologies at different levels and difficult precision improvement, multistage subsection formula gear pump case work
Make the high-precision block position degree problem needed, guarantees the job security of pump group.
The purpose of the present invention is realized by following technical solution：
A method of detection multistage subsection formula gear pump case block position degree includes the following steps：
Step 1, lower section pump cases at different levels are first passed through into step stay bolt location and installation in pump group shell；
Step 2, then by the active process mandrel and driven technique mandrel that cooperate respectively with active axis hole and driven-shaft hole divide
It is not inserted into active axis hole and driven-shaft hole from top to bottom, the active axis hole and driven-shaft hole in detection lower section pump cases at different levels
Block position degree；
When active process mandrel and driven technique mandrel can be inserted into the bottom of active axis hole and driven-shaft hole respectively, then
Lower section pump case position degrees at different levels are qualified；
When encountering impenetrable pump case when active process mandrel and driven technique mandrel are in underthrust, then lower section is disassembled
Pump cases at different levels simultaneously replace impenetrable pump case, then lower section pump cases at different levels are being pumped by bucket step bolt location and installation
In group shell, then by active process mandrel and the detection of driven technique mandrel, until active process mandrel and driven technique mandrel
It can be inserted into the bottom of active axis hole and driven-shaft hole respectively；
Step 3, then by upper section junior pump case by active axis hole thereon and driven-shaft hole it is respectively fitted over active process
On mandrel and driven technique mandrel, if it is possible to it puts on, then upper section junior pump case position degree is qualified, if cannot put on,
Upper section junior pump case is replaced, until can cover on active process mandrel and driven technique mandrel, driven technique mandrel of dismantling
The handle at top；
Step 4, then by upper section higher level's pump case through active shaft hole sleeve thereon on active process mandrel, then by upper section
Higher level's pump case and upper section junior pump case are fixedly mounted on the upper end of pump group shell, if upper section higher level pump case can be installed
In place, then the position degree of upper section higher level pump case is qualified, if cannot be attached to position, replaces upper section higher level's pump case and continues to pacify
Dress, until being mountable to position.
In the step 1, the torque for applying 19.9-20.1Nm on the step stay bolt is fastened.
In the step 2, when active process mandrel and driven technique mandrel are inserted into active axis hole and driven-shaft hole respectively
Behind bottom, then active process mandrel and driven technique mandrel are rotated respectively, when rotating fluent, then lower section pump case positions at different levels
Degree of setting is qualified；When rotation has retardance, then to replace active axis hole and/or driven-shaft hole abrasion mark in lower section pump case most obvious
Pump case, detect the position degree of the lower section pump case of replacement again according still further to step 2, until rotate it is fluent.
In the step 4, after upper section higher level's pump case is mountable to position, then active process mandrel is rotated, work as rotation
When fluent, then the position degree of upper section higher level pump case is qualified；When rotation has retardance, then replace upper section junior pump case and upper
Section higher level's pump case, the upper section junior pump case of replacement and the position degree of upper section higher level's pump case are detected according still further to step 4 again,
Until rotating fluent.
In the step 4, the driven technique mandrel is buried inside pump case, and the upper end of driven technique mandrel is protruded into
From the positioning hole of moving mandrel in section higher level's pump case.
In the step 2- step 4, the active axis hole and driven-shaft hole of the gear pump cases at different levels and long with step
The position degree of the dowel hole of bolt cooperation is no more than 0.02mm.
In the step 2- step 4, the nominal value of active process axle diameter active axis hole more each than pump cases at different levels
The small 0.001~0.002mm of minimum diameter, tolerance be -0.003mm；The nominal value of driven technique axle diameter is than pump cases at different levels
Small 0.001~the 0.002mm of minimum diameter of each driven-shaft hole of body, tolerance are -0.003mm.
In the step 4, the upper section higher level pump case and upper section junior pump case are mounted by means of bolts on pump group
The upper end of shell, the tightening torque of bolt are 23.9-24.1Nm.
When detect all pump case position degrees it is qualified after, to be mountable to the lower section pump cases at different levels of position, pump group shell,
Step stay bolt, upper section junior pump case and upper section higher level's pump case carry out complete head-stamp.
When carrying out complete head-stamp, it is marked in each pump case outer wall and step stay bolt head.
The present invention has the advantages that：
The present invention is divided by the active process mandrel and driven technique mandrel cooperated respectively with active axis hole and driven-shaft hole
It is not inserted into active axis hole and driven-shaft hole from top to bottom, the active axis hole and driven-shaft hole in detection lower section pump cases at different levels
Block position degree, when active process mandrel and driven technique mandrel can be inserted into the bottom of active axis hole and driven-shaft hole respectively
When, then lower section pump case position degrees at different levels are qualified；Upper section junior pump case is passed through into active axis hole and driven-shaft hole point thereon
It does not cover on active process mandrel and driven technique mandrel, if it is possible to put on, then upper section junior pump case position degree is qualified；It will
Upper section higher level's pump case passes through active shaft hole sleeve thereon on active process mandrel, then will be under upper section higher level pump case and upper section
Grade pump case is fixedly mounted on the upper end of pump group shell, if upper section higher level's pump case is mountable to position, upper section higher level pump
The position degree of shell is qualified；For many years, the test and factory that have passed through factory's each stage use examination to the detection method practical application,
Solves common wear-out failure after multistage subsection formula gear pump work, method simple practical does not increase pump cases at different levels
Original processing technique and manufacture difficulty have wide application value in multistage pump group processing and manufacturing technology.
Further, when active process mandrel and driven technique mandrel are inserted into the bottom of active axis hole and driven-shaft hole respectively
Afterwards, then respectively active process mandrel and driven technique mandrel are rotated, when rotating fluent, then lower section pump case position degrees at different levels
Qualification, therefore by the rotation of simulation driving shaft and driven shaft, the detection accuracy of position degree is further enhanced, ensure that detection
The pump cases at different levels of lower section afterwards are not easy to wear at work.
Further, after upper section higher level's pump case is mountable to position, then active process mandrel is rotated, it is without hindrance when rotating
When stagnant, then the position degree of upper section higher level pump case is qualified, the detection accuracy of position degree is further enhanced, after ensure that detection
Upper section pump cases at different levels are not easy to wear at work.
Further, driven technique mandrel is buried inside pump case, the upper end of driven technique mandrel is protruded on upper section
From the positioning hole of moving mandrel in grade pump case, the detection accuracy of detection upper section higher level pump case position degree is further ensured.
Further, when detect all pump case position degrees it is qualified after, to be mountable to position lower section pump cases at different levels,
Pump group shell, step stay bolt, upper section junior pump case and upper section higher level's pump case carry out complete head-stamp therefore being capable of basis
The label of head-stamp is stored and is installed to pump case, easy to use, is not easy confusion, and have trackability.
Further, apply axial pretightening by fastening requirements needed for pressing pump group working condition during combining and adjusting
Load ensure that the required precision of pump group working condition.
【Detailed description of the invention】
Fig. 1 is the preliminary assembling schematic diagram of multistage pump group shell；
Fig. 2 is complete pump group shell assembling schematic diagram.
Wherein, 1- active process mandrel, the driven technique mandrel of 2-, 3- lower section level-one pump case, 4- lower section second level pump case,
5- lower section three-level pump case, 6- lower section level Four pump case, 7- lower section Pyatyi pump case, six grades of pump cases of 8- lower section, 9- pump group shell
Body, 10- step stay bolt, 11- upper section junior pump case, 12- upper section higher level's pump case, 12-1- location hole, 13- bolt.
【Specific embodiment】
It is next with reference to the accompanying drawings and examples that the present invention is further illustrated.
As Figure 1-Figure 2, the method for a kind of detection multistage subsection formula gear pump case block position degree of the invention, packet
Include following steps：
Step 1, lower section pump cases at different levels are first passed through into 10 location and installation of step stay bolt in pump group shell 9, step is long
The torque for applying 19.9-20.1Nm on bolt 10 is fastened；
Then the active process mandrel 1 and driven technique mandrel 2 that will cooperate respectively with active axis hole and driven-shaft hole step 2,
It is inserted into active axis hole and driven-shaft hole from top to bottom respectively, detects the active axis hole and driven-shaft hole in lower section pump cases at different levels
Block position degree；
When active process mandrel 1 and driven technique mandrel 2 can be inserted into the bottom of active axis hole and driven-shaft hole respectively,
Then lower section pump case position degrees at different levels are qualified (as shown in Figure 1)；
When encountering impenetrable pump case when active process mandrel 1 and driven technique mandrel 2 are in underthrust, then under disassembling
Section pump case at different levels simultaneously replaces impenetrable pump case, then lower section pump cases at different levels are passed through 10 location and installation of bucket step bolt
It is detected in pump group shell 9, then through active process mandrel 1 and driven technique mandrel 2, until active process mandrel 1 and driven
Technique mandrel 2 can be inserted into the bottom of active axis hole and driven-shaft hole respectively；
Step 3, then by upper section junior pump case 11 by active axis hole thereon and driven-shaft hole it is respectively fitted over active work
On skill mandrel 1 and driven technique mandrel 2, if it is possible to put on, then 11 position degree of upper section junior pump case is qualified, if cannot cover
On, then upper section junior pump case 11 is replaced, until can cover on active process mandrel 1 and driven technique mandrel 2, is dismantled driven
The handle (as shown in Figure 2) at 2 top of technique mandrel；
Step 4, then by upper section higher level pump case 12 pass through active shaft hole sleeve thereon on active process mandrel 1, then will
Upper section higher level pump case 12 and upper section junior pump case 11 are fixedly mounted on the upper end of pump group shell 9, bolt 13 by bolt 13
Tightening torque be 23.9-24.1Nm, if upper section higher level pump case 12 is mountable to position, upper section higher level pump case 12
Position degree it is qualified, if cannot be attached to position, replace upper section higher level pump case 12 and continue to install, until being mountable to position
(as shown in Figure 2)；
Driven technique mandrel 2 is buried inside pump case, when upper section higher level pump case 12 is installed in place, driven technique
The upper end of mandrel 2 is protruded into upper section higher level pump case 12 out of, moving mandrel location hole 12-1, and bolt 13 is securable to position.
After detecting all pump case position degrees qualifications, to lower section pump cases at different levels, the pump group shell for being mountable to position
9, step stay bolt 10, upper section junior pump case 11 and upper section higher level pump case 12 carry out complete head-stamp, are carrying out complete head-stamp
When, it is marked in each pump case outer wall and step stay bolt head.
As shown in Figure 1, when active process mandrel 1 and driven technique mandrel 2 are inserted into active axis hole and driven-shaft hole respectively
Behind bottom, then active process mandrel 1 and driven technique mandrel 2 are rotated respectively, when rotating fluent, then lower section pump cases at different levels
Position degree is qualified；When rotation has retardance, then all lower section pump cases are replaced, detects the lower section of replacement again according still further to step 2
The position degree of pump case, until rotating fluent.
As shown in Fig. 2, after upper section higher level pump case 12 is mountable to position, then active process mandrel 1 is rotated, work as rotation
When fluent, then the position degree of upper section higher level pump case 12 is qualified；When rotation has retardance, then replace upper section junior pump case 11
With upper section higher level pump case 12, the upper section junior pump case 11 and upper section higher level's pump case of replacement are detected again according still further to step 4
12 position degree, until rotating fluent.
As depicted in figs. 1 and 2, the active axis hole of gear pump cases at different levels and driven-shaft hole and match with step stay bolt 10
The position degree of the dowel hole of conjunction is no more than 0.02mm, the nominal value of 1 diameter of active process mandrel master more each than pump cases at different levels
Small 0.001~the 0.002mm of the minimum diameter of shaft hole, tolerance are -0.003mm；The nominal value of driven 2 diameter of technique mandrel is than each
Small 0.001~the 0.002mm of minimum diameter of grade each driven-shaft hole of pump case, tolerance are -0.003mm.
Embodiment
Referring to fig. 2, with totally 6 grades of pump group shell, the segmented tooth wheel pump of 1 grade of fuel feeding pump case, 5 grades of oil return pump cases
For shell.Fuel feeding pump case and wherein 4 grades of oil return pump cases by six 10 assembled in series of step stay bolt together with, and it is another
Outer 1 grade of oil return pump case forms segmented pump group shell.
The method for applying axial load in the present invention by simulation, reduces pump group shell axis hole position under free state and operating conditions
The difference set, and manufactured and designed the precision process mandrel of detection, piecewise combination adjusts each section of pump case.
This method has following characteristics：
1) it on the basis of single-piece work technique and precision are not easy to continue to lift up, is combined by the substep to pump cases at different levels
With the method for adjustment, multistage subsection formula high class gear pump case block position degree is improved, ensure that the reliable of pump group work
Property.
2) apply axial pretightening load by fastening requirements needed for pump group working condition during combining adjustment, ensure that
The required precision of pump group working condition.
3) combining the step of adjusting is：
Step 1：5 grades of pump cases of lower section, respectively lower section level-one to six grades of pump cases are assembled, together with pump group shell 9, are used
Precision bolt, that is, step stay bolt 10 is located by connecting, and applies load by step stay bolt 10 and fastens all pump cases of lower section
Body；
Step 2：Driving and driven axis hole is detected respectively with precision process mandrel, that is, active process mandrel 1 and driven technique mandrel 2
Block position degree；
Step 3：To actually detected undesirable situation, lower section pump case at different levels, allotment wherein technique mandrel are decomposed
Detection can not by respective housings, then again assembling detection, block position degree detection meet the requirements after take out active process
Mandrel 1；
Step 4：It assembles in upper section two-stage pump case to the lower section pump case for adjusting and combining, by driven technique mandrel 2
The handle of upper end is removed and is buried inside pump case, is applied load and is fastenedly connected all pump cases of upper-lower section；
Step 5：Pump group active axis hole block position degree is detected with active process mandrel 1；
Step 6：To undesirable situation actually detected in previous step, upper section pump case, allotment wherein technique are decomposed
Mandrel detection can not by respective housings, again assembling detection；
Step 7：After detection is qualified, decomposes and mark complete head-stamp.
The nominal value of driving and driven technique axle diameter axis hole minimum dimension more each than pump case is small by 0.001~
0.002mm, tolerance are -0.003mm, and circular runout is not more than 0.003mm；Active process mandrel is multistage step, from starting building
The control of skill mandrel axial length guarantees to bury in pump group；Driving and driven technique mandrel has rotation handle, wherein leading
Skill of starting building mandrel handle and detection section are integrated non-dismountable formula, and driven technique mandrel rotating handle is to be threadedly engaged with detection section
Detachable style.
The technique mandrel that the present invention designs is divided to driving and driven totally two, while the driving and driven shaft hole matching with 6 grades of pump cases,
Wherein active axis hole is step axis with mandrel.Combination as shown in FIGS. 1 and 2.
Process route：Just load a section pump case (5 grades) and pump group shell 9 --- detection --- allotment lower section pump case and group
--- assembling upper and lower section pump case, --- label is decomposed in detection --- allotment lower section pump case simultaneously assembles detection --- for dress detection.
1) a section pump case (5 grades) just are loaded
See Fig. 1, connected by step stay bolt 5 grades of lower section pump cases at different levels are fitted together, are packed into pump group together
In shell 9；It is fastened with step stay bolt 10, applies torque 20Nm.
2) it detects
Driving and driven technique mandrel is inserted into work step 1 respectively) in the driving and driven axis hole of lower section pump case that installs, detect axis hole
Block position degree Ф 0.02mm, is shown in Fig. 1.It is required that：Technique mandrel can smoothly be inserted into axis hole, rotate fluent.
3) it deploys lower section pump case and assembles detection
The 2) work step detection qualification do not execute the work step；
The 2) work step detect the unqualified time-division and solve lower section pump case, by detection actual conditions changing section pump case and again
Executing the, 1), 2) work step, the part pump case are that active axis hole and/or driven-shaft hole abrasion mark are most bright in lower section pump case
Aobvious pump case.
4) the upper and lower grade pump case of upper section is assembled
Active process mandrel 1 and driven technique mandrel 2 are inserted into the shells at different levels of lower part, by remaining 1 grade of upper section junior
Pump case 11 is assembled into the upper end of pump group shell 9；Active process mandrel 1 and driven technique mandrel 2 are rotated, is rotated fluent.It tears open
Under driven technique mandrel 2 rotating handle, the upper end of driven technique mandrel 2 is protruded into upper section higher level pump case 12 from moving mandrel
In location hole 12-1；Upper section higher level pump case 12 is assembled into upper section junior pump case 11, is fastenedly connected with bolt 13, is applied
Torque 24Nm, is shown in Fig. 2.
5) it detects
It is fluent to rotate the rotation of active process mandrel, detects axis hole block position degree Ф 0.02mm, sees Fig. 2.
6) it deploys lower section pump case and assembles detection
The 5) work step detection qualification do not execute the work step；
The decomposes upper section higher level pump case 12 and upper section junior pump case 11 when 5) work step detection is unqualified, practical by detection
Situation exchange pump case and re-execute the 4), 5) work step.
7) label is decomposed
The pump case that position degree detection is qualified in groups is decomposed, is marked as required on each pump case outer wall, shoulder bolt head
Corresponding complete trace.
Claims (10)
1. a kind of method for detecting multistage subsection formula gear pump case block position degree, which is characterized in that include the following steps：
Step 1, first that lower section pump cases at different levels are interior in pump group shell (9) by step stay bolt (10) location and installation；
Then the active process mandrel (1) and driven technique mandrel (2) that will cooperate respectively with active axis hole and driven-shaft hole step 2,
It is inserted into active axis hole and driven-shaft hole from top to bottom respectively, detects the active axis hole and driven-shaft hole in lower section pump cases at different levels
Block position degree；
When active process mandrel (1) and driven technique mandrel (2) can be inserted into the bottom of active axis hole and driven-shaft hole respectively,
Then lower section pump case position degrees at different levels are qualified；
When encountering impenetrable pump case when active process mandrel (1) and driven technique mandrel (2) are in underthrust, then under disassembling
Section pump case at different levels simultaneously replaces impenetrable pump case, then lower section pump cases at different levels are passed through bucket step bolt (10) positioning peace
It is detected in pump group shell (9), then through active process mandrel (1) and driven technique mandrel (2), until active process mandrel
(1) and driven technique mandrel (2) can be inserted into the bottom of active axis hole and driven-shaft hole respectively；
Step 3, then by upper section junior pump case (11) by active axis hole thereon and driven-shaft hole it is respectively fitted over active process
On mandrel (1) and driven technique mandrel (2), if it is possible to put on, then upper section junior pump case (11) position degree is qualified, if not
It can put on, then replace upper section junior pump case (11), until can cover in active process mandrel (1) and driven technique mandrel (2)
On, the handle at the top of driven technique mandrel (2) of dismantling；
Step 4, then by upper section higher level pump case (12) pass through active shaft hole sleeve thereon on active process mandrel (1), then will
Upper section higher level pump case (12) and upper section junior pump case (11) are fixedly mounted on the upper end of pump group shell (9), if on upper section
Grade pump case (12) is mountable to position, then the position degree of upper section higher level pump case (12) is qualified, if cannot be attached to position,
Replacement upper section higher level pump case (12) continues to install, until being mountable to position.
2. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
It is, in the step 1, the torque for applying 19.9-20.1Nm on the step stay bolt (10) is fastened.
3. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
It is, in the step 2, when active process mandrel (1) and driven technique mandrel (2) are inserted into active axis hole and driven-shaft hole respectively
Bottom after, then rotation active process mandrel (1) and driven technique mandrel (2) respectively, when rotation is fluent, then lower section is at different levels
Pump case position degree is qualified；When rotation has retardance, then replace active axis hole and/or driven-shaft hole Friction mark in lower section pump case
The most apparent pump case of mark, the position degree of the lower section pump case of replacement is detected according still further to step 2 again, until rotating fluent.
4. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
It is, in the step 4, after upper section higher level pump case (12) is mountable to position, then rotates active process mandrel (1), when
When rotating fluent, then the position degree of upper section higher level pump case (12) is qualified；When rotation has retardance, then replace upper section junior pump
Shell (11) and upper section higher level pump case (12) detect the upper section junior pump case (11) of replacement and upper according still further to step 4 again
The position degree of section higher level's pump case (12), until rotating fluent.
5. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
It is, in the step 4, the driven technique mandrel (2) is buried inside pump case, and the upper end of driven technique mandrel (2) is stretched
Enter in upper section higher level pump case (12) out of, moving mandrel location hole (12-1).
6. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
Be, in the step 2- step 4, the active axis hole and driven-shaft hole of gear pump cases at different levels and with step stay bolt (10)
The position degree of the dowel hole of cooperation is no more than 0.02mm.
7. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
It is, in the step 2- step 4, the nominal value active axis hole more each than pump cases at different levels of active process mandrel (1) diameter
The small 0.001~0.002mm of minimum diameter, tolerance be -0.003mm；The nominal value of driven technique mandrel (2) diameter is than pumps at different levels
Small 0.001~the 0.002mm of minimum diameter of each driven-shaft hole of shell, tolerance are -0.003mm.
8. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
It is, in the step 4, the upper section higher level pump case (12) and upper section junior pump case (11) pass through bolt (13) fixed peace
Mounted in the upper end of pump group shell (9), the tightening torque of bolt (13) is 23.9-24.1Nm.
9. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 1, feature
Be, when detect all pump case position degrees it is qualified after, to be mountable to the lower section pump cases at different levels of position, pump group shell (9),
Step stay bolt (10), upper section junior pump case (11) and upper section higher level pump case (12) carry out complete head-stamp.
10. a kind of method for detecting multistage subsection formula gear pump case block position degree according to claim 9, feature
It is, when carrying out complete head-stamp, is marked in each pump case outer wall and step stay bolt head.
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| CN204228094U (en) * | 2014-11-26 | 2015-03-25 | 厦门跨世机械制造有限公司 | A kind of driving shaft concentricity detection frock |
| CN205332953U (en) * | 2015-12-29 | 2016-06-22 | 天津宝涞精工集团股份有限公司 | Cylinder body position degree detection device |
| CN205561699U (en) * | 2016-02-02 | 2016-09-07 | 西安法士特汽车传动有限公司 | Utensil is examined to blind hole locations degree |
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2016
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| SU1551963A1 (en) * | 1988-01-05 | 1990-03-23 | Восточно-Сибирский Филиал Государственного Научно-Исследовательского Института Автомобильного Транспорта | Method of determining misalignment of successive row of holes in a part |
| CN102288083A (en) * | 2011-05-13 | 2011-12-21 | 无锡小天鹅精密铸造有限公司 | Method and gauge for detecting true position of pump shell |
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| CN202562400U (en) * | 2012-05-18 | 2012-11-28 | 河南省中原内配股份有限公司 | Special gauge for measuring excircle position of cast-in cylinder sleeve |
| CN202719963U (en) * | 2012-06-06 | 2013-02-06 | 沈阳飞机工业（集团）有限公司 | Self-centering integrated measuring head device of hole series part coaxiality measurement |
| CN204228094U (en) * | 2014-11-26 | 2015-03-25 | 厦门跨世机械制造有限公司 | A kind of driving shaft concentricity detection frock |
| CN205332953U (en) * | 2015-12-29 | 2016-06-22 | 天津宝涞精工集团股份有限公司 | Cylinder body position degree detection device |
| CN205561699U (en) * | 2016-02-02 | 2016-09-07 | 西安法士特汽车传动有限公司 | Utensil is examined to blind hole locations degree |
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|---|---|
| CN106643389A (en) | 2017-05-10 |
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Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO., LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE CORPORATION PLC |