CN112032156A - High-precision resetting mechanism and method - Google Patents
High-precision resetting mechanism and method Download PDFInfo
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- CN112032156A CN112032156A CN202010707296.6A CN202010707296A CN112032156A CN 112032156 A CN112032156 A CN 112032156A CN 202010707296 A CN202010707296 A CN 202010707296A CN 112032156 A CN112032156 A CN 112032156A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003825 pressing Methods 0.000 claims description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 17
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0216—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable
- F16B5/0225—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the position of the plates to be connected being adjustable allowing for adjustment parallel to the plane of the plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/20—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts for bolts or shafts without holes, grooves, or notches for locking members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention relates to the technical field of mechanical design, and discloses a high-precision resetting mechanism and a high-precision resetting method, which are used for connecting a first structural member and a second structural member, and the first structural member and the second structural member are also connected through a second mounting screw; the positioning device comprises an upper positioning piece and a lower positioning piece, wherein the upper positioning piece is fixed on the first structural piece, and the lower positioning piece is fixed on the second structural piece; the upper positioning piece and the lower positioning piece are arranged oppositely, and a spherical positioning piece is arranged between the upper positioning piece and the lower positioning piece; the upper positioning piece, the spherical positioning piece and the lower positioning piece are connected and positioned through the positioning connecting piece. The invention can reliably reset the two structural members, and has simple structure, reliable function and high resetting precision.
Description
Technical Field
The invention relates to the technical field of mechanical design, in particular to a high-precision resetting mechanism and a high-precision resetting method.
Background
For many precise instruments, after key parts of the instruments are required to be disassembled (used for maintenance, repair and the like) and then reinstalled, the installation positions of the instruments are unchanged, and the instruments or parts with different functions have different requirements on the resetting precision after installation. Taking a high-precision aviation three-linear-array surveying and mapping camera as an example, the requirement of the focal plane assembly and the inertia measurement assembly inside the camera on the reset precision after disassembly reaches 2 microns, because the focal plane reset precision influences the position error of a camera principal point, the reset precision of the inertia measurement assembly influences the eccentric error and collimation axis error of the inertia measurement assembly and the camera, and the errors directly determine the measurement precision of the three-linear-array camera. The most common resetting mode is to use a positioning pin, the taper pin precision of the positioning pin is higher than that of a straight pin, but the highest resetting precision of the taper pin can only reach 5-6 mu m and does not meet the requirement of positioning precision.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide a high-precision resetting mechanism and method, which can reliably reset two structural members, and are simple in structure, reliable in function and high in resetting precision.
In order to solve the problems proposed above, the technical scheme adopted by the invention is as follows:
the invention provides a high-precision resetting mechanism which is used for connecting a first structural member and a second structural member, and the first structural member and the second structural member are connected through a second mounting screw; the positioning device comprises an upper positioning piece and a lower positioning piece, wherein the upper positioning piece is fixed on the first structural piece, and the lower positioning piece is fixed on the second structural piece; the upper positioning piece and the lower positioning piece are arranged oppositely, and a spherical positioning piece is arranged between the upper positioning piece and the lower positioning piece; the upper positioning piece, the spherical positioning piece and the lower positioning piece are connected and positioned through the positioning connecting piece.
Furthermore, a pressing piece is arranged between the positioning connecting piece and the end part of the spherical positioning piece.
Furthermore, the middle part of the spherical positioning piece is a cylindrical section, and two ends of the spherical positioning piece form a spherical surface; the pressing piece, the lower positioning piece and the end face corresponding to the spherical positioning piece also form a spherical surface respectively.
Further, the outer cylindrical section of the spherical positioning piece is matched with the cylindrical hole of the upper positioning piece; the outer spherical surfaces at the two ends of the spherical positioning piece are simultaneously ground with the pressing piece and the lower positioning piece respectively.
Further, the positioning connecting piece adopts a positioning screw.
Furthermore, the spherical positioning piece and the upper positioning piece are made of materials with lubricating property, including ceramic-based and iron-based solid self-lubricating composite materials.
The invention also provides a high-precision resetting method, which comprises the following specific steps:
step S1: manufacturing a resetting mechanism and marking the resetting mechanism, wherein the resetting mechanism comprises an upper positioning piece, a spherical positioning piece, a lower positioning piece, a positioning connecting piece and a pressing piece;
step S2: the cylindrical hole of the upper positioning piece and the outer cylindrical surface of the spherical positioning piece are ground, and spherical surfaces among the pressing piece, the lower positioning piece and the spherical positioning piece are ground respectively;
step S3: fixing the lower positioning piece on the second structural piece and fixing the upper positioning piece on the first structural piece;
step S4: arranging the upper positioning piece and the lower positioning piece oppositely, and arranging the spherical positioning piece between the upper positioning piece and the lower positioning piece;
step S5: connecting the upper positioning piece and the lower positioning piece by adopting the positioning connecting piece and the pressing piece;
step S6: and connecting the first structural member and the second structural member by using a second mounting screw.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts the upper positioning piece, the lower positioning piece and the spherical positioning piece, can reliably reset the two structural pieces, has simple structure, reliable function and high resetting precision, and can reach 2-3 mu m; in addition, the spherical positioning piece is adopted, the installation angles of the two structural parts are easy to adjust, the precision loss (such as flatness and the like) of the structural parts caused by machining is avoided, the installation is more convenient, and the installation efficiency can also be improved.
Drawings
FIG. 1 is an installation schematic diagram of the high precision reset mechanism of the present invention;
FIG. 2 is a schematic structural diagram of a high-precision resetting mechanism according to the present invention;
FIG. 3 is another schematic structural diagram of the high-precision resetting mechanism of the invention;
FIG. 4 is a flow chart of a high precision reset method of the present invention;
fig. 5 is a view showing an example of the installation of the high-precision resetting mechanism according to the present invention.
Wherein the reference numerals are as follows: 100-a reset mechanism, 1-a first structural member, 2-an upper positioning member, 3-a spherical positioning member, 4-a lower positioning member, 5-a second structural member, 6-a positioning connecting member, 7-a pressing member, 8-a first mounting screw, 9-a second mounting screw, 10-an IMU assembly (inertia measurement assembly), 11-an IMU support frame and 12-a lens cone flange.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 and 2, the present invention further provides a high-precision resetting mechanism, the resetting mechanism 100 is used for connecting a first structural member 1 and a second structural member 5, can ensure the reliability of the dismounting, mounting and resetting of the two structural members and can ensure the resetting precision of the two structural members, and the first structural member 1 and the second structural member 5 are connected through a second mounting screw 9.
The reset mechanism 100 includes an upper positioning member 2, a spherical positioning member 3, a lower positioning member 4 and a positioning connector 6, wherein the upper positioning member 2 is fixed on the first structural member 1, and the lower positioning member 4 is fixed on the second structural member 5. The upper positioning piece 2 and the lower positioning piece 4 are arranged oppositely, and a spherical positioning piece 3 is arranged between the upper positioning piece and the lower positioning piece. The positioning connecting piece 6 sequentially penetrates through the upper positioning piece 2, the spherical positioning piece 3 and the lower positioning piece 4 and positions the upper positioning piece, the spherical positioning piece 3 and the lower positioning piece.
Further, in order to ensure the reliability and stability of the positioning and installation among the upper positioning piece 2, the spherical positioning piece 3 and the lower positioning piece 4, a pressing piece 7 is further arranged between the positioning connecting piece 6 and the end part of the spherical positioning piece 3.
Furthermore, the middle part of the spherical positioning piece 3 is a cylindrical section, and two ends of the spherical positioning piece form a spherical surface; the pressing piece 7, the lower positioning piece 4 and the corresponding end face of the spherical positioning piece 3 are also respectively provided with a spherical surface, so that the lower positioning piece 4 and the spherical positioning piece 3, and the pressing piece 7 and the spherical positioning piece 3 can be conveniently installed and matched. Furthermore, the outer cylindrical section of the spherical positioning piece 3 and the cylindrical hole of the upper positioning piece 2 are matched and ground, and no gap exists between the two in the radial direction. The outer spherical surfaces at two ends of the spherical positioning piece 3 are respectively matched with the pressing piece 7 and the lower positioning piece 4, so that the lower positioning piece 4 is connected with the spherical positioning piece 3, the pressing piece 7 is connected with the spherical positioning piece 3 without a gap, and the installation is convenient to disassemble and reset.
Furthermore, the positioning connecting piece 6 adopts a positioning screw, and the structure is simple, the function is reliable, and the installation and the connection are convenient.
Further, the materials of the spherical positioning piece 3 and the upper positioning piece 2 can be completely or individually selected to be materials with lubricating property, such as ceramic-based, iron-based and other solid self-lubricating composite materials, so that the installation performance of the mechanism can be further improved when the mechanism is reset after being disassembled.
In this embodiment, the first structural member 1 and the second structural member 5 are connected and mounted through three sets of the reset mechanisms 100, and the number of the reset mechanisms can be increased or decreased according to actual needs, so as to ensure the reliability and stability of the mounting and resetting of the two structural members. Further, each set of components of the reset mechanism 100 need to be marked and used in a set to avoid mix-up. When the reset mechanism 100 is reset again, the corresponding relationship between the positions of the first structural member 1 and the second structural member 5 is not changed, the reset precision is ensured, and the high-precision reset of the first structural member 1 relative to the second structural member 5 can be realized.
The invention also provides a high-precision resetting method for realizing high-precision resetting between the first structural member 1 and the second structural member 5, which comprises the following specific steps as shown in fig. 4:
step S1: the resetting mechanism is manufactured and marked and comprises an upper positioning piece 2, a spherical positioning piece 3, a lower positioning piece 4, a positioning connecting piece 6 and a pressing piece 7.
In step S1, since a plurality of sets of reset mechanisms may be provided between the first structural member 1 and the second structural member 5, they are marked to avoid mixing.
Step S2: and (2) performing lap grinding on the cylindrical hole of the upper positioning piece 2 and the outer cylindrical surface of the spherical positioning piece 3, and performing lap grinding on the spherical surfaces among the pressing piece 7, the lower positioning piece 4 and the spherical positioning piece 3 respectively, so that the radii of the cylindrical surface and the spherical surface which are matched with each other are completely consistent, and the matching precision is ensured.
Step S3: the lower positioning element 4 is fixed to the second structural element 5, and the upper positioning element 2 is fixed to the first structural element 1.
In step S3, the upper positioning element 2 and the lower positioning element 4 are fixed by the first mounting screws 8, and they cannot be detached after being fixed.
Step S4: the upper positioning piece 2 and the lower positioning piece 4 are arranged oppositely, the spherical positioning piece 3 is arranged between the upper positioning piece and the lower positioning piece, and the position of the first structural component 1 is adjusted to achieve the set and required position and posture. The cylindrical hole of the upper positioning piece 2 and the lower positioning piece 4 are respectively attached to the outer cylindrical surface and the spherical surface of the spherical positioning piece 3.
Step S5: adopt locating connector 6 and compressing tightly 7 will go up setting element 2 with lower setting element 4 connects, and locating connector 6 can not dismantle again after the installation. The pressing piece 7 is attached to the spherical surface of the spherical positioning piece 3.
Step S6: the first structural member 1 and the second structural member 5 are connected by a second mounting screw 9.
In the above, since the upper positioning element 2 and the lower positioning element 4 are fixed and then can not be detached, when the first structural member 1 needs to be detached, only the second mounting screw 9 needs to be detached, and the first structural member 1 and the upper positioning element 4 thereon can be detached together. When the first structural member 1 is reset again according to the original corresponding relation during installation, because no gap exists between the cylindrical hole of the upper positioning piece 4 and the outer cylindrical section of the spherical positioning piece 3, high-precision reset can be realized, the installation is convenient and reliable, and the installation efficiency can also be improved.
The following takes the installation of an inertial measurement unit of an aerial three-linear-array surveying and mapping camera as an example to further explain the process of the resetting mechanism for implementing the resetting method. As shown in fig. 5, the IMU assembly 10 is mounted on an IMU support bracket 11, and the IMU support bracket 11 is mounted on the barrel flange 12.
Since the IMU assembly 10 is calibrated, its relative position to the barrel mounted on the barrel flange 12 cannot be changed, otherwise the calibrated eccentricity and boresight errors will no longer be applicable. However, in the event that the IMU assembly 10 may fail and require disassembly for maintenance, the reset mechanism described above is required to ensure that the eccentricity and boresight errors of the IMU assembly 10 are not changed. The resetting mechanism is arranged on the IMU supporting frame 11, the IMU assembly 10 is fixedly connected with the IMU supporting frame 11 and can not be detached, but the IMU assembly 10 and the IMU supporting frame 11 can be detached as a whole, and the IMU supporting frame 11 and the lens cone flange 12 are connected and reset through the resetting mechanism to ensure that the eccentricity and the visual axis error of the IMU assembly 10 are not changed.
Further, the process of resetting the IMU assembly 10 via the reset mechanism is as follows:
(1) and manufacturing three groups of reset mechanisms, wherein the internal components of each group of reset mechanisms are marked individually and used according to groups, and the cylindrical holes of the upper positioning piece 2 and the outer cylindrical surface of the spherical positioning piece 3 in each group of reset mechanisms are ground together, and the spherical surfaces of the pressing piece 7, the lower positioning piece 4 and the spherical positioning piece 3 are ground together respectively.
(2) The lower positioning piece 4 is installed on the lens cone flange 12, the upper positioning piece 2 is installed on the IMU supporting frame 11, the upper positioning piece 2 and the lower positioning piece 4 are respectively fastened by screws, and the screw positions can use thread glue and the like to increase the connection reliability;
(3) the positioning part 2 on the IMU supporting frame 11 is arranged opposite to the lower positioning part 4 on the lens cone flange 12, the spherical positioning part 3 is arranged, the position of the IMU supporting frame 11 is adjusted to enable the position and the posture to be set and required, smooth installation between each group of reset mechanisms and the IMU supporting frame 11 is guaranteed, and no clamping stagnation position exists.
(4) The pressing piece 7 and the positioning connecting piece 6 are installed, and the positioning connecting piece 6 can be connected with the connecting reliability by using thread glue and the like.
(5) The IMU support bracket 11 is fixed to the barrel flange 12 using second screws.
(6) The IMU assembly 10 is mounted on the IMU frame 11 and secured using first screws where connection reliability may be increased using thread glue or the like.
In the above, when the IMU assembly 10 needs to be disassembled, the second screw of the IMU support frame 11 can be disassembled, so that the IMU support frame 11, the IMU assembly 10 and the upper positioning piece 2 are disassembled together, the position precision after reset can reach 2-3 μm, and the use requirement is met.
According to the high-precision resetting mechanism and the method provided by the invention, the resetting precision reaches 2-3 mu m in practical application, the resetting precision requirements of a focal plane assembly and an inertia measurement assembly of a three-linear-array aerial surveying and mapping camera can be met, and the high-precision resetting mechanism and the method can be popularized to other mechanical structures with requirements on the resetting precision.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. A high accuracy canceling release mechanical system for connect first structure (1) and second structure (5), still connect through second mounting screw (9) between the two, its characterized in that: the positioning device comprises an upper positioning piece (2) and a lower positioning piece (4), wherein the upper positioning piece (2) is fixed on the first structural piece (1), and the lower positioning piece (4) is fixed on the second structural piece (5); the upper positioning piece (2) and the lower positioning piece (4) are arranged oppositely, and a spherical positioning piece (3) is arranged between the upper positioning piece and the lower positioning piece; the upper positioning piece (2), the spherical positioning piece (3) and the lower positioning piece (4) are connected and positioned through a positioning connecting piece (6).
2. The high precision reset mechanism of claim 1, wherein: a pressing piece (7) is further arranged between the positioning connecting piece (6) and the end part of the spherical positioning piece (3).
3. The high precision reset mechanism of claim 2, wherein: the middle part of the spherical positioning piece (3) is a cylindrical section, and two ends of the spherical positioning piece form a spherical surface; the pressing piece (7), the lower positioning piece (4) and the corresponding end surfaces of the spherical positioning piece (3) also form spherical surfaces respectively.
4. A high precision reset mechanism according to claim 3 wherein: the outer cylindrical section of the spherical positioning piece (3) is matched with the cylindrical hole of the upper positioning piece (2); the outer spherical surfaces at the two ends of the spherical positioning piece (3) are simultaneously ground with the pressing piece (7) and the lower positioning piece (4) respectively.
5. The high precision reset mechanism of claim 4, wherein: the positioning connecting piece (6) adopts a positioning screw.
6. The high precision reset mechanism of claim 5, wherein: the spherical positioning piece (3) and the upper positioning piece (2) are made of materials with lubricating property, including ceramic-based and iron-based solid self-lubricating composite materials.
7. A reset method based on the high-precision reset mechanism according to claims 1 to 6, characterized in that: the method comprises the following specific steps:
step S1: manufacturing a resetting mechanism and marking the resetting mechanism, wherein the resetting mechanism comprises an upper positioning piece (2), a spherical positioning piece (3), a lower positioning piece (4), a positioning connecting piece (6) and a pressing piece (7);
step S2: the cylindrical hole of the upper positioning piece (2) and the outer cylindrical surface of the spherical positioning piece (3) are ground, and spherical surfaces among the pressing piece (7), the lower positioning piece (4) and the spherical positioning piece (3) are ground respectively;
step S3: fixing the lower positioning element (4) to the second structural element (5) and the upper positioning element (2) to the first structural element (1);
step S4: arranging the upper positioning piece (2) and the lower positioning piece (4) oppositely, arranging the spherical positioning piece (3) between the upper positioning piece and the lower positioning piece, and adjusting the position of the first structural member (1) to reach a set position and a set posture;
step S5: the upper positioning piece (2) and the lower positioning piece (4) are connected by adopting the positioning connecting piece (6) and the pressing piece (7);
step S6: and connecting the first structural member (1) and the second structural member (5) by adopting a second mounting screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707296.6A CN112032156B (en) | 2020-07-21 | 2020-07-21 | High-precision resetting mechanism and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010707296.6A CN112032156B (en) | 2020-07-21 | 2020-07-21 | High-precision resetting mechanism and method |
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| CN112032156A true CN112032156A (en) | 2020-12-04 |
| CN112032156B CN112032156B (en) | 2021-06-15 |
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| CN202010707296.6A Active CN112032156B (en) | 2020-07-21 | 2020-07-21 | High-precision resetting mechanism and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141350A (en) * | 1996-11-14 | 1998-05-26 | Kokusai Electric Co Ltd | Horizontal planeness adjusting mechanism |
| JPH10318240A (en) * | 1997-05-21 | 1998-12-02 | Komatsu Ltd | Positioning mechanism |
| DE10204380C1 (en) * | 2002-01-28 | 2003-06-12 | Deutsch Zentr Luft & Raumfahrt | Connecting piece for two optical components has nut and bolt forcing two facing conical cups onto ball with through bore to give accurate alignment |
| CN103246040A (en) * | 2013-04-25 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | High-accuracy repeated positioning structure capable of achieving rapid changing and used in photoetching projection lens |
| CN110395405A (en) * | 2018-04-25 | 2019-11-01 | 空中客车德国运营有限责任公司 | Fastening system for being fastened on installation elements in the cabin of carrier |
-
2020
- 2020-07-21 CN CN202010707296.6A patent/CN112032156B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10141350A (en) * | 1996-11-14 | 1998-05-26 | Kokusai Electric Co Ltd | Horizontal planeness adjusting mechanism |
| JPH10318240A (en) * | 1997-05-21 | 1998-12-02 | Komatsu Ltd | Positioning mechanism |
| DE10204380C1 (en) * | 2002-01-28 | 2003-06-12 | Deutsch Zentr Luft & Raumfahrt | Connecting piece for two optical components has nut and bolt forcing two facing conical cups onto ball with through bore to give accurate alignment |
| CN103246040A (en) * | 2013-04-25 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | High-accuracy repeated positioning structure capable of achieving rapid changing and used in photoetching projection lens |
| CN110395405A (en) * | 2018-04-25 | 2019-11-01 | 空中客车德国运营有限责任公司 | Fastening system for being fastened on installation elements in the cabin of carrier |
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| CN112032156B (en) | 2021-06-15 |
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