CN113686291B - Precise adjustment and measurement method and platform for multi-component serial structure - Google Patents
Precise adjustment and measurement method and platform for multi-component serial structure Download PDFInfo
- Publication number
- CN113686291B CN113686291B CN202110838790.0A CN202110838790A CN113686291B CN 113686291 B CN113686291 B CN 113686291B CN 202110838790 A CN202110838790 A CN 202110838790A CN 113686291 B CN113686291 B CN 113686291B
- Authority
- CN
- China
- Prior art keywords
- shell
- rotating shaft
- components
- radial
- installation
- 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.)
- Active
Links
- 238000000691 measurement method Methods 0.000 title description 5
- 238000009434 installation Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000011900 installation process Methods 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The multi-component serial structure comprises components and a rotating shaft; each component is connected in series through a central rotating shaft, and the outer assembly shell of the multi-component serial structure is provided with a plurality of groups of components; the method comprises the following steps: s1, mounting a rotating shaft on a turntable, and fixing a shell on a shell mounting tool; the turntable and the shell mounting tool have no motion interference; adjusting a shell installation tool, and roughly adjusting the radial and axial relative distance between the rotating shaft and the shell; s2, sequentially installing components on the rotating shaft according to the sequence, wherein the rotating shaft and the relative angle between the components arranged on the rotating shaft and the shell are adjusted through rotating of the turntable in each installation process; meanwhile, according to the measured radial and axial relative distance between the rotating shaft and the shell, the shell installation tool is adjusted to realize precise adjustment, so that the phase position between the shell and the rotating shaft meets the requirement.
Description
Technical Field
The invention relates to a method and a platform suitable for precisely adjusting a large-scale and multi-component serial mechanism, which can realize radial and axial high-precision measurement and adjustment of large-size parts and have the characteristics of high precision, easiness in operation and the like.
Background
The magnetic suspension rotary joint is a non-contact supporting outer rotor rotary mechanism connected with a satellite platform cabin and a load cabin of a certain model, can meet urgent requirements of ultra-wide high-time and spatial resolution earth observation satellites, and can realize ultra-static suspension, ultra-precise pointing and ultra-stable rotary scanning driving of rotary imaging loads. The magnetic suspension rotary joint has the characteristics of large size, large weight, large number, large and long matching surface, small matching gap and high assembly precision requirement of components.
The prior assembly technology is mostly a process of firstly adjusting and then assembling, and in the assembly process, the shaft part and the hole part relatively move, so that the loss of adjustment precision is necessarily caused, and the precision of a final product is not facilitated. In the invention, the rotating shaft is firstly arranged in the shell and then is adjusted, so that the subsequent moving process is omitted.
Disclosure of Invention
The invention aims to solve the technical problems: overcomes the defects of the prior art and provides a precision adjustment and measurement method and a platform for a multi-component serial structure.
The technical scheme of the invention is as follows: the multi-component serial structure comprises components and a rotating shaft; each component is connected in series through a central rotating shaft, and the outer assembly shell of the multi-component serial structure is provided with a plurality of groups of components; the method comprises the following steps:
s1, mounting a rotating shaft on a turntable, and fixing a shell on a shell mounting tool; the turntable and the shell mounting tool have no motion interference; adjusting a shell installation tool, and roughly adjusting the radial and axial relative distance between the rotating shaft and the shell;
s2, sequentially installing components on the rotating shaft according to the sequence, wherein the rotating shaft and the relative angle between the components arranged on the rotating shaft and the shell are adjusted through rotating of the turntable in each installation process; meanwhile, according to the measured radial and axial relative distance between the rotating shaft and the shell, the shell installation tool is adjusted to realize precise adjustment, so that the phase position between the shell and the rotating shaft meets the requirement.
Further, the device also comprises a mechanical measuring arm, and when the mounting tool of the shell is adjusted, the radial and axial relative distance between the rotating shaft and the shell is measured; measuring the flatness of the assembly and the dimension chain by a mechanical measuring arm in the assembly mounting process; the dimension chain is a radial clearance and an axial clearance between the components, and the height difference between the different components is converted through the dimension chain; and further judging whether the installation meets the requirement or not according to the flatness and the height difference between the components, and if not, returning to S2 to reinstall the components.
Further, the radial and axial relative distance between the rotating shaft and the housing is measured by mounting at least two sets of displacement sensors on the housing.
Further, the displacement sensor is arranged on the shell, the probe of the sensor faces the rotating shaft, and the distance between the probe and the rotating shaft is not more than 2mm; the two groups of sensors are respectively arranged at different heights of the shell, the distance between the rotating shaft and the shell is measured through the displacement sensor, the axial included angle between the rotating shaft and the shell is converted through the numerical values of the two groups of sensors, and the coaxial between the rotating shaft and the shell is ensured through adjusting the shell installation tool.
Further, the lower end of the shell installation tool is supported by at least three supporting feet, and the adjustment of the shell installation tool is realized by the supporting feet.
Further, the long cylindrical parts of the three supporting legs are provided with external threads, the mounting holes corresponding to the shell mounting tools are unthreaded holes, when the shell mounting tools are mounted on the supporting legs, nuts are respectively mounted on the upper surface and the lower surface, and the height and the plane of the shell mounting tools are adjusted through adjusting the nuts.
Further, by horizontally moving the bases of the three legs, the radial distance between the housing and the rotating shaft is adjusted.
Further, the assembly is a stator-rotor combined assembly.
The precise adjustment and measurement platform of the multi-component serial structure comprises components and a rotating shaft; each component is connected in series through a central rotating shaft, and the outer assembly shell of the multi-component serial structure is provided with a plurality of groups of components; the platform comprises a shell mounting tool, a turntable and a displacement sensor;
the shell installation tool is used for fixing the shell, the turntable is used for installing the rotating shaft, and the turntable is installed on the shell installation tool and has no motion interference with the shell installation tool;
the radial and axial relative distance between the rotating shaft and the shell can be roughly adjusted by adjusting the shell installation tool; in the process of installing the components in series, the rotary shaft and the relative angle between the components arranged on the rotary shaft and the shell are adjusted through rotation of the rotary table; the displacement sensor is arranged on the shell and is used for measuring the radial and axial relative distance between the rotating shaft and the shell in the assembly installation process, and adjusting the shell installation tool according to the measured relative distance so that the phase position between the shell and the rotating shaft meets the requirement.
Further, the platform also comprises a mechanical measuring arm for measuring the flatness of the component and a dimension chain during the component mounting process; the dimension chain is a radial clearance and an axial clearance between the components, and the height difference between the components can be converted through the dimension chain; and further judging whether the installation meets the requirement or not through the flatness and the height difference between the components, and reinstalling the components if the installation does not meet the requirement.
Compared with the prior art, the invention has the beneficial effects that:
the magnetic suspension rotary joint has the characteristics of large size, large weight, large number of matching surfaces, long matching clearance and high assembly precision requirement of components, and in order to realize high-precision assembly of the joint, a precise adjustment and measurement method and a platform meeting the requirement of dimension measurement and precise adjustment in the assembly process need to be developed. The invention relates to a method and a platform suitable for precisely assembling and adjusting a large-scale multi-component serial mechanism. The invention can realize the radial and axial high-precision measurement and adjustment of large-size parts, and has the characteristics of high precision, easy operation and the like.
Drawings
FIG. 1 is a schematic diagram of a platform according to the present invention;
fig. 2 is a cross-sectional view of a platform of the present invention.
Detailed Description
The invention will now be described in detail with reference to the accompanying figures 1-2 and examples.
The invention relates to a precise adjustment and measurement method for a multi-component serial structure, which comprises components (multi-dimensional stator and rotor combined components) and a rotating shaft; each component is connected in series through a central rotating shaft, and the outer assembly shell of the multi-component serial structure is provided with a plurality of groups of components; the method comprises the following steps:
s1, mounting a rotating shaft on a turntable, and fixing a shell on a shell mounting tool; the turntable and the shell mounting tool have no motion interference; adjusting a shell installation tool, and roughly adjusting the radial and axial relative distance between the rotating shaft and the shell;
s2, sequentially installing components on the rotating shaft according to the sequence, wherein the rotating shaft and the relative angle between the components arranged on the rotating shaft and the shell are adjusted through rotating of the turntable in each installation process; meanwhile, according to the measured radial and axial relative distance between the rotating shaft and the shell, the shell installation tool is adjusted to realize precise adjustment, so that the phase position between the shell and the rotating shaft meets the requirement.
In a preferred example provided by the invention, the device further comprises a mechanical measuring arm, wherein when the shell installation tool is adjusted, the radial and axial relative distance between the rotating shaft and the shell is measured; measuring the flatness of the assembly and the dimension chain by a mechanical measuring arm in the assembly mounting process; the dimension chain is a radial clearance and an axial clearance between the components, and the height difference between the different components is converted through the dimension chain; and further judging whether the installation meets the requirement or not according to the flatness and the height difference between the components, and if not, returning to S2 to reinstall the components.
The radial and axial relative distance between the rotating shaft and the housing is measured by at least two sets of displacement sensors mounted on the housing. The sensor probe faces the rotating shaft, and the distance between the probe and the rotating shaft is not more than 2mm; the sensors are respectively arranged at different heights of the shell, the distance between the rotating shaft and the shell is measured through the displacement sensor, the axial included angle between the rotating shaft and the shell is converted through the numerical values of the two groups of sensors, and the coaxial between the rotating shaft and the shell is ensured through adjusting the shell installation tool.
Examples
The magnetic levitation joint product is not simply assembled by a shaft/hole, but after the housing and the rotating shaft are assembled, a plurality of stator-rotor combined assemblies are assembled in series between the housing and the rotating shaft, and the final assembled product is a multi-layer structure of the housing/the stator-rotor combined assemblies/the rotating shaft.
This embodiment is directed against the assembly demand of magnetic suspension rotary joint, as shown in fig. 1, has given a precision adjustment platform, has used the shell installation frock of major diameter, a plurality of adjustable stabilizer blades on circumference position, and the stabilizer blade passes through nut and screw rod connection and is fixed with installation frock base dish, can fix the subassembly of heavy weight, can realize radial and axial precision adjustment again. Specifically, the long cylinder part of stabilizer blade has the external screw thread, and the mounting hole that the shell installation frock corresponds is the unthreaded hole, and when the shell installation frock was installed on the stabilizer blade, upper and lower surface installs a nut respectively, through adjusting nut, adjusts the height and the flatness of shell installation frock. The radial distance between the housing and the rotating shaft is adjusted by horizontally moving the bases of the three support legs.
As can be seen from fig. 2, the rotary shaft is fixed to the turntable, and the housing is fixed to the housing mounting tool. The turntable is relatively independent of the shell installation tool. The turntable can rotate 360 degrees, and the relative angles between the rotating shaft and the components arranged on the rotating shaft and the shell are adjusted through the turntable. According to the invention, the displacement sensor is arranged on the shell, after the installation of the rotating shaft and the turntable is completed, the radial and axial relative distance between the rotating shaft and the shell is roughly adjusted by adjusting the shell installation tool after the shell and the shell installation tool are assembled, then the assembly is arranged on the rotating shaft, the relative position between the rotating shaft and the shell can be measured in real time through the displacement sensor in the whole assembly process of the assembly, and the relative position between the rotating shaft and the shell is adjusted by adjusting the shell installation tool, so that the accuracy of subsequent assembly is ensured. The flatness and the dimension chain of each component are measured by using a mechanical measuring arm in the assembly process, and the method specifically comprises the flatness of each component after being installed in place, the height difference among the components obtained by conversion according to the dimension chain and the like.
Illustrating:
the components 1, 2 and 3 are stator-rotor combined components, the principle is that a stator is arranged on a shell, a rotor is arranged on a rotating shaft, and the stator and the rotor of each component are ensured to be arranged in place through adjustment of gaskets arranged on the shell. After the assembly 1 is installed on the rotating shaft and the shell, firstly, whether the assembly 1 is installed in place or not can be confirmed by measuring the relative distance between the stator and the rotor of the assembly 1 and the upper end face of the shell or the upper end face of the central shaft and the planeness of the installation face of the stator and the rotor respectively, and if the assembly does not meet the design requirement, the assembly needs to be reassembled until the design requirement is met. Then, the distance from the stator mounting surface of the assembly 1 to the upper end surface of the shell is measured to be L1, and the distance from the rotor mounting surface of the assembly 1 to the upper end surface of the shell is measured to be L2, wherein the absolute value of L1-L2 is the distance between the stator mounting surface and the rotor mounting surface of the assembly 1. The dimensions of the gasket can be determined by repairing the gasket so that the gasket meets the design requirements, mounting the gasket to the housing, and continuing to assemble the assembly 2 to the housing and the rotating shaft.
The invention is suitable for the size measurement of a large-size range and a small measurement gap. (the measurement tools such as a common height ruler and the like cannot be realized), and the method can meet the high-precision requirement of the whole assembly process.
The invention is not described in detail in part as being common general knowledge to a person skilled in the art.
Claims (7)
1. The multi-component serial structure comprises components and a rotating shaft; each component is connected in series through a central rotating shaft, and the outer assembly shell of the multi-component serial structure is provided with a plurality of groups of components; the method is characterized by comprising the following steps:
s1, mounting a rotating shaft on a turntable, and fixing a shell on a shell mounting tool; the turntable and the shell mounting tool have no motion interference; adjusting a shell installation tool, and roughly adjusting the radial and axial relative distance between the rotating shaft and the shell;
s2, sequentially installing components on the rotating shaft according to the sequence, wherein the rotating shaft and the relative angle between the components arranged on the rotating shaft and the shell are adjusted through rotating of the turntable in each installation process; meanwhile, according to the measured radial and axial relative distance between the rotating shaft and the shell, the shell mounting tool is adjusted to realize precise adjustment, so that the phase position between the shell and the rotating shaft meets the requirement;
the mechanical measuring arm is used for measuring the radial and axial relative distance between the rotating shaft and the shell when the shell mounting tool is adjusted; measuring the flatness of the assembly and the dimension chain by a mechanical measuring arm in the assembly mounting process; the dimension chain is a radial clearance and an axial clearance between the components, and the height difference between the different components is converted through the dimension chain; further judging whether the installation meets the requirement or not according to the flatness and the height difference between the components, and if not, returning to S2 to reinstall the components;
the radial and axial relative distance between the rotating shaft and the housing is measured by mounting at least two sets of displacement sensors on the housing.
2. The method according to claim 1, characterized in that: the displacement sensor is arranged on the shell, the probe of the sensor faces the rotating shaft, and the distance between the probe and the rotating shaft is not more than 2mm; the two groups of sensors are respectively arranged at different heights of the shell, the distance between the rotating shaft and the shell is measured through the displacement sensor, the axial included angle between the rotating shaft and the shell is converted through the numerical values of the two groups of sensors, and the coaxial between the rotating shaft and the shell is ensured through adjusting the shell installation tool.
3. The method according to claim 1, characterized in that: the lower end of the shell installation tool is supported by at least three supporting feet, and the adjustment of the shell installation tool is realized by the supporting feet.
4. A method according to claim 3, characterized in that: the long cylindrical part of three stabilizer blade has the external screw thread, and the mounting hole that the shell installation frock corresponds is the unthreaded hole, and when the shell installation frock was installed on the stabilizer blade, upper and lower surface installs a nut respectively, through adjusting nut, adjusts the height and the plane degree of shell installation frock.
5. A method according to claim 3, characterized in that: the radial distance between the housing and the rotating shaft is adjusted by horizontally moving the bases of the three support legs.
6. A method according to claim 3, characterized in that: the assembly is a stator-rotor combined assembly.
7. The precise adjustment and measurement platform of the multi-component serial structure comprises components and a rotating shaft; each component is connected in series through a central rotating shaft, and the outer assembly shell of the multi-component serial structure is provided with a plurality of groups of components; the method is characterized in that: the device comprises a shell mounting tool, a turntable and a displacement sensor;
the shell installation tool is used for fixing the shell, the turntable is used for installing the rotating shaft, and the turntable is installed on the shell installation tool and has no motion interference with the shell installation tool;
the radial and axial relative distance between the rotating shaft and the shell can be roughly adjusted by adjusting the shell installation tool; in the process of installing the components in series, the rotary shaft and the relative angle between the components arranged on the rotary shaft and the shell are adjusted through rotation of the rotary table; the displacement sensor is arranged on the shell and is used for measuring the radial and axial relative distance between the rotating shaft and the shell in the assembly installation process, and adjusting the shell installation tool according to the measured relative distance to enable the phase position between the shell and the rotating shaft to meet the requirement;
the device also comprises a mechanical measuring arm, a measuring device and a measuring device, wherein the mechanical measuring arm is used for measuring the flatness and the dimension chain of the component in the component mounting process; the dimension chain is a radial clearance and an axial clearance between the components, and the height difference between the components can be converted through the dimension chain; and further judging whether the installation meets the requirement or not through the flatness and the height difference between the components, and reinstalling the components if the installation does not meet the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110838790.0A CN113686291B (en) | 2021-07-23 | 2021-07-23 | Precise adjustment and measurement method and platform for multi-component serial structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110838790.0A CN113686291B (en) | 2021-07-23 | 2021-07-23 | Precise adjustment and measurement method and platform for multi-component serial structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113686291A CN113686291A (en) | 2021-11-23 |
| CN113686291B true CN113686291B (en) | 2023-12-12 |
Family
ID=78577796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110838790.0A Active CN113686291B (en) | 2021-07-23 | 2021-07-23 | Precise adjustment and measurement method and platform for multi-component serial structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113686291B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443169A (en) * | 2015-11-11 | 2016-03-30 | 上海交通大学 | Device and method for assembling multi-stage drum type rotor of aero-engine |
| CN111049291A (en) * | 2020-01-03 | 2020-04-21 | 常州迈特运控电机有限公司 | Motor housing magnet steel assembly and assembly table |
| CN111216154A (en) * | 2019-12-04 | 2020-06-02 | 朱丛江 | Contactor base shell assembly quality |
| CN212122256U (en) * | 2020-03-16 | 2020-12-11 | 杭州特翌智科技有限公司 | Automatic butt joint device for assembly of aero-engine components |
| CN112344884A (en) * | 2020-10-16 | 2021-02-09 | 大连理工大学 | Coaxiality and clearance measuring device for frame assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6883224B2 (en) * | 2002-02-01 | 2005-04-26 | Honeywell International Inc. | Gas turbine impeller alignment tool and method |
-
2021
- 2021-07-23 CN CN202110838790.0A patent/CN113686291B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443169A (en) * | 2015-11-11 | 2016-03-30 | 上海交通大学 | Device and method for assembling multi-stage drum type rotor of aero-engine |
| CN111216154A (en) * | 2019-12-04 | 2020-06-02 | 朱丛江 | Contactor base shell assembly quality |
| CN111049291A (en) * | 2020-01-03 | 2020-04-21 | 常州迈特运控电机有限公司 | Motor housing magnet steel assembly and assembly table |
| CN212122256U (en) * | 2020-03-16 | 2020-12-11 | 杭州特翌智科技有限公司 | Automatic butt joint device for assembly of aero-engine components |
| CN112344884A (en) * | 2020-10-16 | 2021-02-09 | 大连理工大学 | Coaxiality and clearance measuring device for frame assembly |
Non-Patent Citations (2)
| Title |
|---|
| 夏静贵 ; .高温磁悬浮轴承定子电磁线圈封装技术研究.机械工程与自动化.2011,(第04期),全文. * |
| 高温磁悬浮轴承定子电磁线圈封装技术研究;夏静贵;;机械工程与自动化(第04期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113686291A (en) | 2021-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011918B (en) | High-precision direct driven air flotation turntable | |
| CN108801179B (en) | A kind of non-contact axis coaxality measuring mechanism and method at a distance | |
| WO2018184256A1 (en) | Single point laser vibration measurer based multi-directional wide-angle and continuous-scan vibration measurement auxiliary instrument | |
| CN108919513B (en) | Coaxial optical system adjusting device and method | |
| CN108155482B (en) | Structure of high-precision reflecting surface antenna combined panel and adjusting method thereof | |
| CN109751938B (en) | High-precision adjusting method and device for large-caliber tooth-shaped reflector component for space camera | |
| CN111288952B (en) | Automatic centering adjusting tool for rotary transformer | |
| CN106949814B (en) | Rapid assembling and adjusting device for precisely assembled bearing and using method | |
| CN113686291B (en) | Precise adjustment and measurement method and platform for multi-component serial structure | |
| CN107966163B (en) | Cubic mirror fast adjusting device of space photoelectric sensor and adjusting method thereof | |
| CN113640939B (en) | Two-dimensional angle precise adjustment device for large-caliber plane mirror | |
| CN111660281B (en) | Parallel robot assembling method and auxiliary tool thereof | |
| CN111121709B (en) | System and method for measuring thrust line of small-size large-expansion-ratio nozzle engine | |
| CN204439325U (en) | A kind of maintenance dummy shaft | |
| CN114264267B (en) | Ultra-precise angle sensor circumference angle detection system | |
| CN107588758B (en) | Rotor horizontal measuring device, rotor horizontal measuring method and rotor horizontal adjusting method | |
| CN110068459B (en) | Barrel-shaped disc-shaped supporting system | |
| CN111085952B (en) | Zero calibration device for large-scale space mechanical arm joint | |
| CN211205053U (en) | Cantilever type double-shaft simulation test turntable structure | |
| CN105157647A (en) | Mixed biasing type articulated arm measurement machine | |
| CN114001632B (en) | Flatness detection device and detection method for large ultra-precise annular plane | |
| CN114918871B (en) | Rotor assembly frame and application method thereof | |
| CN109946019A (en) | A kind of torque sensor calibrating installation of extreme environment | |
| CN110932508B (en) | Positioning false ball structure and spherical motor rotor aligning positioning method | |
| Graves et al. | Second Target Station Project (STS) Steerable Optic Design & Testing Report |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |