CN106197230B - A kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool - Google Patents
A kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool Download PDFInfo
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- CN106197230B CN106197230B CN201610646401.3A CN201610646401A CN106197230B CN 106197230 B CN106197230 B CN 106197230B CN 201610646401 A CN201610646401 A CN 201610646401A CN 106197230 B CN106197230 B CN 106197230B
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- long axis
- larger diameter
- workpiece
- internal bore
- diameter internal
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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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention provides a kind of preferable workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool of adaptability, including long axis (1), measuring rod (2), support (3) and detection platform (4), it is characterized by: the measuring rod (2) is separate structure, exterior measuring gauge rod (22) including interior measuring rod (21) and the outer end that inside and outside can be movably movably connected on the interior measuring rod (21), the length of axial line of the outer end of the exterior measuring gauge rod (22) to long axis (1) is adapted with the radius of annular element larger diameter internal bore and shape is corresponding outer circle arc.
Description
Technical field
The present invention relates to the detection instruments of the larger diameter internal bore of annular element, and in particular to a kind of workpiece both side plate upper annular
Part larger diameter internal bore coaxiality detecting tool.
Background technique
Referring to Fig. 1, there is a kind of workpiece 7 in some special machine equipment, be respectively connected on two side plates 73 of the workpiece 7
The vertical range of one its bottom end to bottom plate 72 is equal and has the annular element 70 of identical larger diameter internal bore 71.In order to guarantee this
Normal use of the workpiece 7 in special machine equipment, it is necessary to assure the concentricity of the larger diameter internal bore 71 of two annular elements 70,
The radius value of the larger diameter internal bore 71 of each annular element 70 must be added its bottom end bottom of to plus the size of its wall thickness
The height value of the bottom surface of plate 72 is controlled in reasonable range, that is, the larger diameter internal bore 71 of two annular elements 70 must be made
The height value that radius value adds its bottom end to the bottom surface of bottom plate 72 plus the size of its wall thickness is equal, i.e., must make two ring-types
The concentricity tolerance value range control of the larger diameter internal bore 71 of part 70 is in the reasonable scope.
For this reason, it may be necessary to after on the both side plate 73 that two annular elements 70 are connected to workpiece 7, to two annular elements 70
The concentricity of larger diameter internal bore 71 detected, to determine their concentricity whether in reasonable range.Currently, to two
Detection instrument used by the concentricity of the larger diameter internal bore 71 of annular element 70 is detected is mainly ruler.When detection, point
Not Cai Yong ruler directly detect the height value of bottom surface of the bottom end of each annular element 70 to bottom plate 72, if each annular element
The height value of 70 bottom ends to the bottom surface of bottom plate 72 is equal, shows that the concentricity of the larger diameter internal bore 71 of two annular elements 70 is public
In the reasonable scope, otherwise the concentricity tolerance value range of the larger diameter internal bore 71 of two annular elements 70 is just for the control of poor value range
Do not control in the reasonable scope, the problem is that；It is that the inspection on range estimation ruler is passed through by testing staff in detection process
Measured value come the concentricity tolerance value range of the larger diameter internal bore 71 to two annular elements 70 whether control in the reasonable scope into
Row judgement, is influenced by eyesight, detection level and ruler precision etc., and detection is not convenient enough, efficiency is lower, and usually to detect
It is not accurate enough, there is error, cause workpiece 7 not reach requirement in use, lead to assemble the special machine equipment of the workpiece 7 not
It can work normally.
In order to solve the above technical problems, applicant has applied for a kind of entitled " workpiece both side plate before the application proposes
Upper annular part larger diameter internal bore axiality detection device " patent of invention, it is shown in Figure 2, the device include long axis 1, survey
Gauge rod 2, support 3 and detection platform 4, there are two the supports 3, erects to their adjustable axial spacings and is supported in detection upwards
On platform 4, be connected respectively with the top of two supports 3 to the 1 both ends height adjusting degree of long axis, the measuring rod 2 with
Long axis 1 is vertical, and inner end can rotate and can axially slidably be connected on long axis 1 along long axis 1, outer end to long axis 1 around long axis 1
Axial line length it is equal with the radius value of the larger diameter internal bore of annular element and shape is also corresponding outer circle arc, it is described
The axial line of long axis 1 to the vertical range of the upper surface of detection platform 4 and the larger diameter internal bore 71 of annular element 70 radius value
In addition the wall thickness value of annular element 70 is along with the bottom end of annular element 70 is to the sum of the height of bottom surface of bottom plate 72 of workpiece 7 phase
Deng.The device can the larger diameter internal bore concentricity in accordance with the following steps to workpiece two sides annular element detect；Firstly, will
The bottom plate 72 of workpiece 7 is placed in detection platform 4, and is integrally located at workpiece 7 between two supports 3；Then, make at long axis 1
State except the outer end that its both ends stretches out in the larger diameter internal bore 71 of two sides annular element 70；Then, it is rotated along long axis 1
Ground, axial movement measuring rod 2 make to move in the larger diameter internal bore 71 of any one the first backward annular element 70 of measuring rod 2；Due to
The outer end of measuring rod 2 to long axis 1 axial line length axis equal and long axis 1 with 71 radius of larger diameter internal bore of annular element
Heart line is to the radius value of the vertical range of the upper surface of detection platform 4 and the larger diameter internal bore of annular element plus annular element
Wall thickness value is equal to the sum of the height of workpiece bottom plate along with the bottom end of annular element.Therefore, as long as measuring rod 2 is on long axis 1
Within the larger diameter internal bore 71 for rotatably axially movably moving into each annular element 70, so that it may determine workpiece 7
The concentricity of the larger diameter internal bore 71 of two sides annular element 70 is in reasonable range.Otherwise, as long as measuring rod 2 is in long axis 1
On rotationally can not axially movably move within the larger diameter internal bore 71 of any one annular element 70, so that it may really
The concentricity for determining the larger diameter internal bore 71 of 7 two sides annular element 70 of workpiece is in unreasonable range.Therefore, which detects
It is more convenient, detection efficiency is higher, detection is relatively accurate, is not in error, can guarantee workpiece 7 in use up to requiring,
And the special machine equipment for assembling the workpiece 7 is enable to work normally.
However, the device is since measuring rod 2 is overall structure, the length of measuring rod 2 is fixed and invariable, i.e., its outer end is extremely
The length value of the axial line of long axis 1 is fixed and invariable.Thus, can only a kind of workpiece both side plate upper annular part to size it is big
The concentricity of diameter interior bore is detected, and adaptability is poor.It is big to various sizes of workpiece both side plate upper annular part when needing
When the concentricity of diameter interior bore is detected, measuring rod 2 must be just redesigned and replaced, the design of measuring rod 2, manufacture, more
Change higher cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of preferable workpiece both side plate upper annular part of adaptability is straight greatly
Diameter coaxiality of inner hole detection instrument.
In order to solve the above technical problems, the present invention adopts the following technical scheme that；
A kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool, including long axis, measuring rod, support
And detection platform, there are two the supports, and it erects to their adjustable axial spacings and is supported in detection platform upwards, the length
It is connected respectively at the top of two supports to the both ends height adjusting degree of axis, the measuring rod is vertical with long axis, inner end
It can rotate and can be axially slidably connected on long axis along long axis around long axis, the upper table of the axial line of the long axis to detection platform
The radius value of the larger diameter internal bore of the vertical range and annular element in face adds annular element plus the wall thickness value of annular element
Bottom end it is equal to the sum of the height of bottom surface of bottom plate of workpiece, it is characterised in that: the measuring rod is separate structure, including interior
The exterior measuring gauge rod of measuring rod and the outer end that inside and outside can be movably movably connected on the interior measuring rod, the outer end of the exterior measuring gauge rod is extremely
The length of the axial line of long axis is adapted with the radius of annular element larger diameter internal bore and shape is corresponding outer circle arc.
Further, the outer end of the interior measuring rod is equipped with screw hole, and the inner end of the exterior measuring gauge rod, which is equipped with, to extend internally
Stud, the exterior measuring gauge rod inside and outside can movably be movably connected on the outer end of the interior measuring rod by screw hole and stud.
It further, further include be assemblied in two supports respectively top and long axis with making long axis both ends height adjusting degree
Both ends two height regulating mechanisms.
Further, each height regulating mechanism in described two height regulating mechanisms includes the top for being located at each support
The card slot in portion, the longitudinal screw hole extended downwardly from the bottom of the card slot by support, the radial perforation long axis for being located at long axis one end
Radial screw hole, and be assemblied in the bolt among longitudinal screw hole and radial screw hole and the handle at the top for being connected to the bolt
Hand.
Further, the inner end of the interior measuring rod of the measuring rod is equipped with the connecting hole of the micro- diameter greater than long axis in aperture,
The inner end of the interior measuring rod can be rotated and can be axially slidably connected on long axis along long axis around long axis by the connecting hole.
Further, the bottom of described two supports is detachably connected with detection platform.
Further, the bottom of described two supports is threadedly coupled with detection platform.
The present invention includes following beneficial effect；
Since measuring rod of the present invention is separate structure, including interior measuring rod and inside and outside it can movably be movably connected on this
The exterior measuring gauge rod of the outer end of interior measuring rod, the length and annular element of axial line of the outer end of the exterior measuring gauge rod to long axis are straight greatly
The radius of diameter inner hole is adapted and shape is corresponding outer circle arc.Thus, the length of measuring rod is adjustable change, i.e.,
The length value of axial line of measuring rod outer end to long axis is adjustable change, can by by exterior measuring gauge rod towards interior measurement
Moved inside and outside bar and change the outer end of exterior measuring gauge rod to long axis axial line length, that is, adjustment changes the length of measuring rod
Value, the i.e. length value of the axial line of adjustment change measuring rod outer end to long axis.Then, when needing to a variety of various sizes of workpiece
When the concentricity of both side plate upper annular part larger diameter internal bore is detected, as long as by exterior measuring gauge rod towards moving inside and outside interior measuring rod
The length of axial line of the outer end that is dynamic and changing exterior measuring gauge rod to long axis, keeps the length and workpiece both side plate upper annular part straight greatly
The radius of diameter inner hole is equal, it will be able to using the present invention according to same steps described in background technique, i.e., according to applicant
Entitled " a kind of workpiece both side plate upper annular part larger diameter internal bore concentricity detection dress applied before the application proposes
Set " patent of invention described in same steps, to various various sizes of workpiece both side plate upper annular part larger diameter internal bores
Concentricity detected, adaptability is preferable.Moreover, in various various sizes of workpiece both side plate upper annular part major diameters
When the concentricity in hole is detected, does not need to design, manufacture, replace a variety of various sizes of measuring rods, significantly reduce and set
Meter, manufacture and replacement cost, improve work efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present invention detection workpiece；
Fig. 2 is the structural representation of the workpiece both side plate upper annular part larger diameter internal bore axiality detection device of the prior art
Figure；
Fig. 3 is structural schematic diagram of the invention；
Fig. 4 is side view of the present invention；
Fig. 5 is the structural schematic diagram of measuring rod of the present invention；
Fig. 6 is the structural schematic diagram of support；
Fig. 7 is the connection relationship diagram of bolt and handle in height regulating mechanism；
Fig. 8 is the side view of Fig. 7；
Fig. 9 is the structural schematic diagram of long axis；
Figure 10 is use state diagram of the invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to the preferred embodiment of the present invention.
Referring to Fig. 3, Fig. 4, Fig. 5 and Figure 10, workpiece both side plate upper annular part larger diameter internal bore concentricity detection of the present invention
Tool, including long axis 1, measuring rod 2, support 3 and detection platform 4, there are two the supports 3, their adjustable axial spacings
Setting is supported in detection platform 4 upwards, the both ends height adjusting degree of the long axis 1 ground top with two supports 3 respectively
It is connected, the measuring rod 2 is vertical with long axis 1, and inner end can rotate and can axially slidably be connected to along long axis 1 around long axis 1
On long axis 1, in the vertical range of upper surface of the axial line of the long axis 1 to detection platform 4 and the major diameter of annular element 70
The radius value in hole 71 plus annular element 70 wall thickness value along with annular element 70 bottom end to workpiece 7 bottom plate 72 bottom surface
The sum of height it is equal.By Fig. 3 to Fig. 5 as it can be seen that the measuring rod 2 is separate structure, including interior measuring rod 21 and inside and outside can move
It is movably connected on the exterior measuring gauge rod 22 of the outer end of the interior measuring rod 21 dynamicly, the axis of the outer end of the exterior measuring gauge rod 22 to long axis 1
The length of heart line is adapted with the radius of annular element larger diameter internal bore and shape is corresponding outer circle arc.So, it surveys
The length of gauge rod 2 is adjustable change, i.e. the length value of the axial line of 2 outer end of measuring rod to long axis 1 is adjustable changes
Become, can by by exterior measuring gauge rod 22 towards changing the outer end of exterior measuring gauge rod 22 and movement inside and outside interior measuring rod 21 to long axis 1
Axial line length, that is, adjustment change measuring rod 2 length value, i.e., adjustment change 2 outer end of measuring rod to long axis 1 axis
The length value of heart line.Then, when needing to the coaxial of a variety of various sizes of workpiece both side plate upper annular part larger diameter internal bores
Degree is when being detected, as long as exterior measuring gauge rod 22 is changed the outer end of exterior measuring gauge rod 22 to length towards moving inside and outside interior measuring rod 21
The length of the axial line of axis 1 keeps the length equal with the radius of workpiece both side plate upper annular part larger diameter internal bore, it will be able to adopt
With the present invention according to same steps described in background technique, i.e., according to the title of applicant's application before the application proposes
It is synchronised described in a kind of patent of invention for " workpiece both side plate upper annular part larger diameter internal bore axiality detection device "
Suddenly, the concentricity of various various sizes of workpiece both side plate upper annular part larger diameter internal bores is detected, adaptability is preferable.
Moreover, not needed when being detected to the concentricity of various various sizes of workpiece both side plate upper annular part larger diameter internal bores
It designs, manufacture, replacing a variety of various sizes of measuring rods 2, significantly reducing design, manufacture and replacement cost, improve work
Make efficiency.
Referring to Fig. 3 to Fig. 5, the outer end of the interior measuring rod 21 is equipped with screw hole 210, and the inner end of the exterior measuring gauge rod 22 is equipped with
The stud 220 to extend internally, the exterior measuring gauge rod 22 inside and outside can movably be movably connected on this by screw hole 210 and stud 220
The outer end of interior measuring rod 21.This makes exterior measuring gauge rod 22 simple compared with the structure that interior measuring rod 21 inside and outside can be movably flexibly connected
It is single, and enable the length of the outer end of exterior measuring gauge rod 22 to the axial line of long axis 1 be more easily adjusted so as to by ring-type zero
The radius of part larger diameter internal bore is equal.
Referring to Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10, the invention also includes make 1 both ends height adjusting degree of long axis
Ground is assemblied in two height regulating mechanisms 50,51,10,30,31 at the top of two supports 3 and the both ends of long axis 1 respectively.This makes
The vertical range for obtaining axial line to the upper surface of detection platform 4 of long axis 1 can be according to the larger diameter internal bore 71 of annular element 70
Radius value, the wall thickness value of annular element 70, annular element 70 bottom end to the sum of the height of bottom surface of bottom plate 72 of workpiece 7
It is different and be adaptively adjusted, expand use scope of the invention.
By Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10 as it can be seen that described two height regulating mechanisms 50,51,10,30,
Each height regulating mechanism 50,51,10,30,31 in 31 includes the card slot 30 for being located at the top of each support 3, from the card
Longitudinal screw hole 31 that the bottom of slot 30 is extended downwardly by support 3, be located at 1 one end of long axis radial perforation long axis 1 radial screw hole
10, and it is assemblied in the bolt 51 among longitudinal screw hole 31 and radial screw hole 10 and the handle at the top for being connected to the bolt 51
Hand 50.This make height regulating mechanism 50,51,10,30,31 it is relatively simple for structure, design and manufacture and be easier.
By Fig. 3 to Fig. 5 as it can be seen that the inner end of the interior measuring rod 21 of the measuring rod 2 is equipped with the micro- diameter greater than long axis 1 in aperture
Connecting hole 20, the inner end of the interior measuring rod 21 can be rotated and can be slid axially along long axis 1 around long axis 1 by the connecting hole 20
Ground is connected on long axis 1.This enables measuring rod 2 relatively easily to rotate and can axially slidably connect along long axis 1 around long axis 1
It is connected on long axis 1.
By Fig. 3 to Fig. 5 as it can be seen that the bottom of described two supports 3 is detachably connected with detection platform 4.This makes this
More convenient be easy is carried in the disassembly of invention.
By Fig. 3 to Fig. 5 as it can be seen that the bottom of described two supports 3 is threadedly coupled with detection platform 4.This makes the present invention
Detachably connected is relatively simple for structure.
Preferred embodiment described above is only the illustration made to the present invention.The neck of technology belonging to the present invention
The technical staff in domain can to described specific embodiment carry out it is various modification, supplement or by a similar method
Substitution, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (7)
1. a kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool, including long axis (1), measuring rod (2),
Support (3) and detection platform (4), there are two the supports (3), erects to their adjustable axial spacings and is supported in detection upwards
On platform (4), it is connected respectively at the top of two supports (3) to the both ends height adjusting degree of the long axis (1), the survey
Gauge rod (2) is vertical with long axis (1), and inner end can rotate around long axis (1) and can axially slidably be connected to long axis along long axis (1)
(1) on, the vertical range of upper surface of the axial line of the long axis (1) to detection platform (4) and annular element (70) it is big straight
The radius value of diameter inner hole (71) plus annular element (70) wall thickness value along with the bottom end of annular element (70) is to workpiece (7)
The sum of the height of bottom surface of bottom plate (72) is equal, it is characterised in that: the measuring rod (2) is separate structure, including interior measuring rod
(21) and inside and outside can movably be movably connected on the interior measuring rod (21) outer end exterior measuring gauge rod (22), the exterior measuring gauge rod
(22) outer end to long axis (1) axial line length be adapted with the radius of annular element larger diameter internal bore and shape be it is corresponding
Outer circle arc.
2. workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool according to claim 1, feature
Be: the outer end of the interior measuring rod (21) is equipped with screw hole (210), and the inner end of the exterior measuring gauge rod (22), which is equipped with, to extend internally
Stud (220), the exterior measuring gauge rod (22) by screw hole (210) and stud (220) can inside and outside to be movably movably connected on this interior
The outer end of measuring rod (21).
3. workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool according to claim 1, feature
It is: further includes be assemblied in two supports (3) respectively top and long axis (1) with making long axis (1) both ends height adjusting degree
Two height regulating mechanisms (50,51,10,30,31) at both ends.
4. workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool according to claim 3, feature
It is: each height regulating mechanism (50,51,10,30,31) in described two height regulating mechanisms (50,51,10,30,31)
Including being located at the card slot (30) at the top of each support (3), being indulged from the bottom of the card slot (30) by what support (3) extended downwardly
To screw hole (31), the radial screw hole (10) for radial perforation long axis (1) for being located at long axis (1) one end, and it is assemblied in the longitudinal direction
The handle (50) of bolt (51) and the top for being connected to the bolt (51) among screw hole (31) and radial screw hole (10).
5. workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool according to claim 1, feature
Be: the inner end of the interior measuring rod (21) of the measuring rod (2) is equipped with the connecting hole of the micro- diameter greater than long axis (1) in aperture
(20), the inner end of the interior measuring rod (21) can be rotated around long axis (1) by the connecting hole (20) and can be axially sliding along long axis (1)
It is connected on long axis (1) dynamicly.
6. workpiece both side plate upper annular part larger diameter internal bore concentricity detection according to any one of claim 1 to 5
Tool, it is characterised in that: the bottom of described two supports (3) is detachably connected with detection platform (4).
7. workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool according to claim 6, feature
Be: the bottom of described two supports (3) is threadedly coupled with detection platform (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646401.3A CN106197230B (en) | 2016-08-09 | 2016-08-09 | A kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646401.3A CN106197230B (en) | 2016-08-09 | 2016-08-09 | A kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool |
Publications (2)
| Publication Number | Publication Date |
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| CN106197230A CN106197230A (en) | 2016-12-07 |
| CN106197230B true CN106197230B (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610646401.3A Active CN106197230B (en) | 2016-08-09 | 2016-08-09 | A kind of workpiece both side plate upper annular part larger diameter internal bore coaxiality detecting tool |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109506555A (en) * | 2018-12-12 | 2019-03-22 | 上海卫星装备研究所 | The measuring device and measurement method of the U-shaped frame bearing hole concentricity of two axis |
| CN110044230B (en) * | 2019-05-29 | 2021-01-15 | 盐城工学院 | Novel spare part assembly error detects device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004191326A (en) * | 2002-12-13 | 2004-07-08 | Mitsubishi Electric Corp | Eccentricity detector |
| CN203375901U (en) * | 2013-08-02 | 2014-01-01 | 国家电网公司 | Device for measuring steam seal, baffle plate and flow path of steam turbine |
| CN103615958A (en) * | 2013-11-06 | 2014-03-05 | 荣成锻压机床有限公司 | Method for measuring coaxiality of clutch shaft hole and crossbeam high-speed shaft hole of press machine |
| CN104654988A (en) * | 2014-06-14 | 2015-05-27 | 柳州市安龙机械设备有限公司 | Method for detecting coaxiality of bearing holes in compressor body |
| CN206002039U (en) * | 2016-08-09 | 2017-03-08 | 重庆望江工业有限公司 | A kind of workpiece biside plate upper annular part larger diameter internal bore coaxiality detecting tool |
-
2016
- 2016-08-09 CN CN201610646401.3A patent/CN106197230B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004191326A (en) * | 2002-12-13 | 2004-07-08 | Mitsubishi Electric Corp | Eccentricity detector |
| CN203375901U (en) * | 2013-08-02 | 2014-01-01 | 国家电网公司 | Device for measuring steam seal, baffle plate and flow path of steam turbine |
| CN103615958A (en) * | 2013-11-06 | 2014-03-05 | 荣成锻压机床有限公司 | Method for measuring coaxiality of clutch shaft hole and crossbeam high-speed shaft hole of press machine |
| CN104654988A (en) * | 2014-06-14 | 2015-05-27 | 柳州市安龙机械设备有限公司 | Method for detecting coaxiality of bearing holes in compressor body |
| CN206002039U (en) * | 2016-08-09 | 2017-03-08 | 重庆望江工业有限公司 | A kind of workpiece biside plate upper annular part larger diameter internal bore coaxiality detecting tool |
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