CN114894188A - Table body for hemispherical resonator gyroscope inertial navigation system and processing method thereof - Google Patents
Table body for hemispherical resonator gyroscope inertial navigation system and processing method thereof Download PDFInfo
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- CN114894188A CN114894188A CN202210824343.4A CN202210824343A CN114894188A CN 114894188 A CN114894188 A CN 114894188A CN 202210824343 A CN202210824343 A CN 202210824343A CN 114894188 A CN114894188 A CN 114894188A
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- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 25
- 238000003754 machining Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 239000011295 pitch Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/18—Stabilised platforms, e.g. by gyroscope
Abstract
The invention relates to the technical field of inertial navigation, and provides a table body for a hemispherical resonant gyroscope inertial navigation system and a processing method thereof. The machining method of the table body for the hemispherical resonator gyro inertial navigation system comprises the following steps: s10, determining a plurality of gyro mounting surfaces on the peripheral side of the platform body; s20, determining an assembly surface of the tool, wherein the assembly surface is used as a reference surface of a plurality of gyro installation surfaces; s30, fitting and assembling the bottom surface of the table body and the assembly surface of the tool, and ensuring that one gyro mounting surface is horizontal; s40, processing the horizontal gyro mounting surface to prepare gyro mounting holes; s50, rotating the table body based on the assembly surface of the tool, enabling the other gyro installation surfaces to be horizontal in sequence, and processing and preparing gyro installation holes on the other gyro installation surfaces in sequence. The invention improves the processing precision and efficiency of the whole table body, further improves the manufacturing efficiency and quality of the hemispherical resonator gyro, saves the cost and is convenient to implement.
Description
Technical Field
The invention relates to the technical field of inertial navigation, in particular to a table body for a hemispherical resonator gyroscope inertial navigation system and a processing method thereof.
Background
The hemispherical resonator gyroscope is a novel solid-state gyroscope with high precision, high reliability and long service life, is a Ge-type vibrating gyroscope for sensing the rotation of a base by utilizing the precession effect of the radial vibration standing wave of the lip edge of a hemispherical shell, has very high measurement precision, super-strong stability and reliability, good shock vibration resistance and temperature performance, and particularly has unique shutdown radiation resistance. Particularly, the service life of the device can be expected to be up to 15 years, the device is a key component for inertial measurement units and attitude stability control of satellites or space vehicles, and has unique advantages and wide prospects in the field of space application.
At present, in order to realize the self-calibration function of the hemispherical resonant gyroscope inertial navigation system, a resonant gyroscope inertial assembly based on a conical configuration structure is adopted, wherein four redundant configuration resonant gyroscopes which are non-parallel to each other are uniformly distributed on four conical surfaces of a conical table body. The inertia assembly with the four-gyro redundant configuration needs to provide redundant information besides angle information in X, Y, Z three directions, and when the gyro is selected to be self-calibrated off-line, the three remaining gyros can still ensure the normal operation of the system. However, in order to reduce the vibration coupling between the resonance gyros, the machining accuracy of the four gyro mounting surfaces and the taper surface angles of the tapered platform body is required to be very high.
The existing machine tool has high precision in X, Y, Z three directions, the processing of other angles is completed by fitting, and the conical surface angle of the conical table body is a special angle and cannot be superposed with the guide rail direction of the machine tool. If the navigation-level application of the conical table body is required to be ensured, the consistency precision of the installation surfaces of the four gyros is ensured, a machine tool with extremely high precision is required to be used for machining, the machining and manufacturing cost is greatly increased, the ultrahigh-precision machine tool is rare, the production scheduling is difficult, and the machining and manufacturing efficiency is greatly influenced.
Disclosure of Invention
The invention provides a hemispherical resonator gyroscope, a table body for a hemispherical resonator gyroscope inertial navigation system and a processing method thereof, which are used for solving the defect that the conical surface of the table body for the hemispherical resonator gyroscope inertial navigation system in the prior art is difficult to process, realizing the consistency of the conical surface processing of the table body for the hemispherical resonator gyroscope inertial navigation system, reducing the manufacturing difficulty and improving the manufacturing quality and efficiency.
The invention provides a machining method of a table body for a hemispherical resonator gyroscope inertial navigation system, which comprises the following steps:
s10, determining a plurality of gyro mounting surfaces on the peripheral side of the platform body;
s20, determining an assembly surface of the tool, wherein the assembly surface is used as a reference surface of the plurality of gyro mounting surfaces;
s30, fitting and assembling the bottom surface of the table body and the assembly surface of the tool, and ensuring that one gyro mounting surface is horizontal;
s40, processing the horizontal gyro mounting surface to prepare a gyro mounting hole;
s50, rotating the table body based on the assembly surface of the tool, enabling the rest of the gyro installation surfaces to be horizontal in sequence, and processing and preparing the gyro installation holes on the rest of the gyro installation surfaces in sequence.
According to the method for processing the stage body for the hemispherical resonator gyroscope inertial navigation system, in the step S10, the method further includes:
s11, arranging assembling positions between two adjacent gyro mounting surfaces, wherein each assembling position is provided with a first assembling hole;
in the step S20, the method further includes:
and S21, processing a plurality of second assembling holes on the assembling surface, wherein the second assembling holes correspond to the first assembling holes one to one and are fixed through assembling parts.
According to the machining method of the table body for the hemispherical resonator gyroscope inertial navigation system, the roundness error of each first assembly hole is smaller than 0.01mm, and the hole pitch error of the first assembly holes is smaller than 0.02 mm;
the roundness error of each second assembly hole is smaller than 0.01mm, and the hole pitch error of the second assembly holes is smaller than 0.02 mm.
According to the method for processing the stage body for the hemispherical resonator gyroscope inertial navigation system, in the step S10, the method further includes:
s12, respectively arranging positioning surfaces on one side of each gyro mounting surface close to the bottom surface of the table body;
in the step S20, the method further includes:
s22, a positioning pin is arranged on the assembling surface of the tool, the positioning pin is in limit fit with the positioning surface, and the table body is located on the upper side of the positioning pin along the inclined direction of the assembling surface of the tool.
According to the machining method of the table body for the hemispherical resonator gyroscope inertial navigation system, provided by the invention, the perpendicularity error between the positioning surface and the assembling surface is less than 0.01 mm.
According to the machining method of the table body for the hemispherical resonator gyroscope inertial navigation system, provided by the invention, the position tolerance of the positioning pin relative to the second assembling hole is less than 0.04 mm.
According to the machining method of the table body for the hemispherical resonant gyroscope inertial navigation system, provided by the invention, the flatness consistency of the installation surfaces of the plurality of gyroscopes is better than 0.004 mm; the flatness errors of the bottom surface of the table body, the assembling surface and the bottom surface of the tool are all smaller than 0.005 mm.
According to the processing method of the table body for the hemispherical resonator gyroscope inertial navigation system, the inclination of the gyroscope installation surface is the same as that of the assembly surface, wherein,
the error between the inclination of the gyro mounting surface and the set angle is less than 0.1';
the error between the inclination of the assembling surface and the set angle is less than 0.1'.
According to the machining method of the table body for the hemispherical resonator gyroscope inertial navigation system, the inclination consistency of the installation surfaces of the plurality of gyroscopes is better than 0.1'.
The invention also provides a table body for the hemispherical resonator gyroscope inertial navigation system, which is prepared based on the machining method of the table body for the hemispherical resonator gyroscope inertial navigation system.
The invention also provides a hemispherical resonator gyroscope, which comprises the table body for the inertial navigation system of the hemispherical resonator gyroscope.
The invention provides a table body for a hemispherical resonant gyro inertial navigation system and a processing method thereof, wherein the processing method comprises the following steps of S10, determining a plurality of gyro mounting surfaces on the peripheral side of the table body; s20, determining an assembly surface of the tool, wherein the assembly surface is used as a reference surface of the plurality of gyro mounting surfaces; s30, fitting and assembling the bottom surface of the table body and the assembly surface of the tool, and ensuring that one gyro mounting surface is horizontal; s40, processing the horizontal gyro mounting surface to prepare a gyro mounting hole; s50, rotating the table body based on the assembly surface of the tool, enabling the rest of the gyro mounting surfaces to be horizontal in sequence, processing and preparing the gyro mounting holes in sequence for the rest of the gyro mounting surfaces, arranging the table body on the assembly surface of the tool, using the assembly surface of the table body shared by the plurality of gyro mounting surfaces as a reference surface, rotating the table body based on the assembly surface, realizing that each gyro mounting surface can be adjusted to be in a horizontal state, further finishing the processing of the gyro mounting holes, ensuring the processing consistency of the gyro mounting holes, improving the processing precision and efficiency of the whole table body, further improving the manufacturing efficiency and quality of the hemispherical resonance gyro, saving the cost and facilitating the implementation.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a process step diagram of the method for processing the stage body for the hemispherical resonator gyroscope inertial navigation system provided by the invention;
FIG. 2 is a schematic structural diagram of the table body after the table body and the tool are assembled in the processing method of the table body for the inertial navigation system of the hemispherical resonator gyroscope provided by the invention;
FIG. 3 is a front view of the table body after the table body and the tooling are assembled in the processing method of the table body for the inertial navigation system of the hemispherical resonator gyroscope provided by the invention;
FIG. 4 is a schematic structural diagram of a tool in the machining method of the stage for the hemispherical resonator gyroscope inertial navigation system provided by the invention;
FIG. 5 is a front view of a tooling in the method for processing the stage body for the hemispherical resonator gyroscope inertial navigation system provided by the invention;
FIG. 6 is a schematic structural diagram of a stage for a hemispherical resonator gyroscope inertial navigation system according to the present invention.
Reference numerals:
100. a table body; 110. a gyro mounting surface; 120. a gyro mounting hole; 130. a positioning surface; 140. assembling positions; 150. a first assembly hole; 160. assembling holes;
200. assembling; 210. an assembly surface; 220. a second assembly hole; 230. positioning pins; 240. and (7) assembling the components.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a method for processing a table body for a hemispherical resonator gyroscope inertial navigation system according to the present invention with reference to fig. 1 to 6, including the following steps:
s10, a plurality of gyro mounting surfaces 110 defining the peripheral side of the table body 100;
s20, determining an assembling surface 210 of the tool 200, wherein the assembling surface 210 is used as a reference surface of the gyro mounting surfaces 110;
s30, fitting and assembling the bottom surface of the table body 100 and the assembling surface 210 of the tool 200, and ensuring that one gyro installing surface 110 is horizontal;
s40, processing the horizontal gyro mounting surface 110 to prepare a gyro mounting hole 120;
s50, rotating the table body 100 based on the assembly surface 210 of the fixture 200, sequentially making the other gyro mounting surfaces 110 horizontal, and sequentially processing the other gyro mounting surfaces 110 to prepare gyro mounting holes 120.
In some embodiments, the step of S10 further includes:
s11, arranging mounting positions 140 between two adjacent gyro mounting surfaces 110, each mounting position 140 being provided with a first mounting hole 150;
in the step S20, the method further includes:
s21, a plurality of second assembly holes 220 are formed on the assembly surface 210, and the second assembly holes 220 correspond to the first assembly holes 150 one by one and are fixed by the assembly member 240.
In some embodiments, the roundness error of each first mounting hole 150 is less than 0.01mm, and the hole pitch error of the plurality of first mounting holes 150 is less than 0.02 mm;
the roundness error of each second assembly hole 220 is less than 0.01mm, and the hole pitch error of the plurality of second assembly holes 220 is less than 0.02 mm.
In some embodiments, the step of S10 further includes:
s12, respectively arranging positioning surfaces 130 on one side of each gyro mounting surface 110 close to the bottom surface of the table body 100;
in the step S20, the method further includes:
s22, the assembly surface 210 of the tool 200 is provided with the positioning pin 230, the positioning pin 230 is in spacing fit with the positioning surface 130, and the stage body 100 is located above the positioning pin 230 along the inclined direction of the assembly surface 210 of the tool 200.
In some embodiments, the error in the perpendicularity of the locating surface 130 and the mounting surface 210 is less than 0.01 mm.
In some embodiments, the positional tolerance of the alignment pin 230 with respect to the second assembly hole 220 is less than 0.04 mm.
In some embodiments, the flatness uniformity of the plurality of top mounting surfaces 110 is better than 0.004 mm; the flatness errors of the bottom surface of the table body 100, the assembling surface 210 and the bottom surface of the tool 200 are all less than 0.005 mm.
In some embodiments, the inclination of top mounting surface 110 is the same as the inclination of mounting surface 210, wherein,
the error between the inclination of the gyro mounting surface 110 and the set angle is less than 0.1';
the inclination of the mounting surface 210 is less than 0.1' from the set angle.
In some embodiments, the uniformity of the inclination of the plurality of gyro mounting surfaces 110 is better than 0.1'.
The machining method of the table body for the hemispherical resonator gyroscope inertial navigation system provided by the embodiment specifically comprises the following steps:
s10, four gyro mounting surfaces 110 defining the periphery of the table body 100, each of the four gyro mounting surfaces 110 being a conical surface, specifically, the gyro mounting surfaces 110 being inclined toward the axis of the table body 100 along the direction from the bottom surface to the top surface of the table body 100;
the four gyro mounting surfaces 110 are uniformly distributed on the periphery of the table body 100, the flatness error of the four gyro mounting surfaces 110 is less than 0.004mm, the consistency of the four gyro mounting surfaces 110 is ensured, the processing precision is ensured, the processing quality is improved, and the inertial navigation performance is further ensured;
further, the error between the conical surface angles of the four gyro mounting surfaces 110, that is, the inclination angles, and the set angle is less than 0.1', the set angle in this embodiment is 53.13 °, and the consistency of the conical surface angles of the four gyro mounting surfaces 110 is ensured.
Specifically, the consistency of the inclination of the four gyro mounting surfaces 110 is better than 0.1', the processing precision of the inclination of the four gyro mounting surfaces 110 is ensured, and the product quality and performance are improved.
S11, processing the platform body 100 between two adjacent gyro mounting surfaces 110, preparing the mounting positions 140, and drilling the first mounting holes 150 in the mounting positions 140, that is, in this embodiment, processing and preparing four mounting positions 140, correspondingly setting four first mounting holes 150, where the drilling direction of the first mounting holes 150, that is, the axial line of the first mounting holes 150, is perpendicular to the bottom surface of the platform body 100;
wherein, the roundness error of each first assembly hole 150 is less than 0.01mm, the hole pitch error of four first assembly holes 150 is less than 0.02mm, that is, the error between the hole pitches of every two adjacent first assembly holes 150 is less than 0.02mm, the uniformity of the four first assembly holes 150 arranged on the peripheral side of the table body 100 is ensured, the machining precision can be completed by a common machining center, that is, compared with the prior art, the requirement for high-precision machining is reduced, and the manufacturing cost is reduced.
S12, respectively arranging positioning surfaces 130 on one side of each gyro mounting surface 110 close to the bottom surface of the table body 100, namely the lower side of the gyro mounting surface 110, wherein the positioning surfaces 130 play a role in temporary limiting, and after the gyro mounting holes 120 are machined, turning the table body 100 on the lower side of the gyro mounting surface 110 to remove the positioning surfaces 130;
wherein, the perpendicularity error between the positioning surface 130 and the bottom surface of the table body 100 needs to be ensured to be less than 0.01mm, and the positioning accuracy is improved.
S13, processing the bottom surface of the table body 100 to ensure that the flatness error of the bottom surface of the table body 100 is less than 0.005mm, and improving the joint flatness of the transfer surface of the table body 100 and the tool 200.
S20, determining an assembly surface 210 of the fixture 200, where the assembly surface 210 is used as a reference surface for the four gyro mounting surfaces 110, in this embodiment, the fixture 200 is set to be a right trapezoid structure, an inclined surface of the fixture 200 is used as the assembly surface 210, the assembly surface 210 is used for assembling the table body 100, and meanwhile, the assembly surface 210 is used as a reference surface for the four gyro mounting surfaces 110, so as to ensure consistency of the gyro mounting surfaces 110 during processing and improve processing accuracy and quality;
the flatness error of the assembly surface 210 is less than 0.005mm, so that the fitting flatness of the assembly surface 210 and the bottom surface of the table body 100 is guaranteed, and the processing accuracy and consistency are guaranteed. The inclination of the mounting surface 210 is less than 0.1' from the set angle, and in the present embodiment, the inclination set angle of the mounting surface 210 is the same as the inclination set angle of the gyro mounting surface 110, and is set to 53.13 °.
S21, four second assembling holes 220 are processed and arranged on the assembling surface 210, wherein the four second assembling holes 220 are correspondingly adapted to the four first assembling holes 150 of the table body 100 on which the assembling surface 210 is arranged, that is, any one of the second assembling holes 220 and any one of the first assembling holes 150 can be assembled and connected through the assembling member 240.
Specifically, in this embodiment, the first assembly hole 150 is a through hole, the second assembly hole 220 is a threaded hole, the assembly member 240 is a bolt, and the bolt end of the assembly member 240 passes through the first assembly hole 150 and then is screwed into the second assembly hole 220, so that the table body 100 is stably assembled on the assembly surface 210 of the fixture 200, and the table body 100 and the fixture 200 are prevented from moving relatively in the machining process of the gyro installation surface 110.
It should be noted that the fitting 240 may be configured as a threaded rod or a bayonet.
Wherein, the circularity error of each second pilot hole 220 is less than 0.01mm, and the error between the hole interval of every two adjacent second pilot holes 220 is less than 0.02mm, guarantees the processing accuracy of second pilot hole 220, simultaneously, guarantees the accurate counterpoint of second pilot hole 220 and first pilot hole 150.
Further, the fitting tolerance between the fitting member 240 and the first and second fitting holes 150 and 220 is in accordance with H7/s6 standard, i.e., the relative average interference is 0.0005-0.0018, and the relative minimum interference is 0.0004-0.00075.
S22, arranging a positioning pin 230 on the assembling surface 210 of the tool 200, wherein the positioning pin 230 is in limit fit with the positioning surface 130, and the table body 100 is positioned on the upper side of the positioning pin 230 along the inclined direction of the assembling surface 210 of the tool 200, that is, the limiting pin is matched with the positioning surface 130 to realize the limit effect on the table body 100 and prevent the table body 100 from sliding downwards on the assembling surface 210; meanwhile, the first assembling hole 150 and the second assembling hole 220 of the table body 100 are accurately aligned, and the efficiency of assembling the table body 100 to the assembling surface 210 of the tool 200 is improved;
that is to say, the stage body 100 is placed on the assembly surface 210 of the tooling 200, the positioning surface 130 of the stage body 100 contacts with the limit pin, and at this time, the first assembly holes 150 and the second assembly holes 220 are automatically aligned one by one precisely, that is, the axes of the first assembly holes 150 and the axes of the second assembly holes 220 are in a superposed state, and the four assembly parts 240 are correspondingly assembled in the corresponding first assembly holes 150 and the second assembly holes 220, so that the stage body 100 is stably assembled on the assembly surface 210 of the tooling 200.
S30, fitting and assembling the bottom surface of the table body 100 and the assembly surface 210 of the tooling 200, and ensuring that one of the gyro mounting surfaces 110 is horizontal, that is, the bottom surface of the tooling 200 is horizontally placed on a machine tool worktable, and the inclination of the assembly surface 210 of the tooling 200 is the same as the inclination of the gyro mounting surface 110 of the table body 100, so that one of the four gyro mounting surfaces 110 is in a horizontal state, that is, the plane where one of the gyro mounting surfaces 110 is located is parallel to the plane where the top surface of the tooling 200 is located, which facilitates processing of the gyro mounting surface 110, reduces the processing difficulty, and improves the processing efficiency.
And S40, processing the horizontal gyro mounting surface 110 to prepare the gyro mounting hole 120, specifically, adjusting the axis of the gyro mounting hole 120 to be prepared on the horizontal gyro mounting surface 110 to be in a vertical state due to the assembly and the matching of the table body 100 and the tool 200, namely, the axis of the gyro mounting hole 120 to be prepared is perpendicular to the gyro mounting surface 110, and at the moment, processing the gyro mounting surface 110 of the table body 100 by keeping a processing drill bit in the vertical direction in a posture perpendicular to the gyro mounting surface 110, so that the gyro mounting hole 120 corresponding to the gyro mounting surface 110 can be obtained.
S50, rotating the table body 100 based on the assembly surface 210 of the fixture 200, sequentially making the other gyro mounting surfaces 110 horizontal, and sequentially processing and preparing the gyro mounting holes 120 on the other gyro mounting surfaces 110, that is, processing one table body 100 needs to rotate three times, each time by 90 degrees, so as to sequentially make the four gyro mounting surfaces 110 horizontal, and further complete processing of the gyro mounting holes 120 on the four gyro mounting surfaces 110.
Because the table body 100 rotates based on the assembly surface 210 as a reference surface, the adhesion degree between the bottom surface of the table body 100 and the assembly surface 210 is always kept, and the levelness of the four gyro mounting surfaces 110 in a horizontal state is kept consistent, so that the machining consistency of the gyro mounting holes 120 is improved, the machining quality is improved, the precision standard requirement on a machine tool is reduced, and the manufacturing cost is saved.
In this embodiment, in order to improve the stability of the positioning pin 230 in limiting the table body 100, the assembly surface 210 is provided with two positioning pins 230. The area of the assembly surface 210 of the tool 200 is larger than the area of the bottom surface of the table body 100, so that the stability of the tool 200 to the table body 100 is improved.
S60, after the processing of the gyro mounting hole 120 is completed on the horizontal gyro mounting surface 110, the drill is replaced, and the assembly holes 160 are continuously processed on the gyro mounting surface 110, in this embodiment, four assembly holes 160 are processed and uniformly distributed on the periphery of the gyro mounting hole 120, wherein the axis of the assembly hole 160 is parallel to the axis of the gyro mounting hole 120 and is perpendicular to the gyro mounting surface 110, and the assembly holes 160 are used to realize the assembly connection between the stage body and the gyro, thereby ensuring the assembly strength of the gyro.
It should be noted that, the various processing parameters involved in the present invention are obtained by comparing experimental results with numerous experiments, rather than empirical parameters, and the above parameters realize processing accuracy, improve processing quality, reduce processing accuracy requirements, and save cost.
The invention also provides a table body for the hemispherical resonant gyroscope inertial navigation system, which comprises a table body 100, wherein a plurality of gyroscope mounting surfaces 110 are arranged on the periphery of the table body 100, and each gyroscope mounting surface 110 is provided with a gyroscope mounting hole 120. The table body for the hemispherical resonator gyroscope inertial navigation system provided by the invention is prepared based on the processing method of the table body for the hemispherical resonator gyroscope inertial navigation system, so that the table body for the hemispherical resonator gyroscope inertial navigation system has the advantages and is not repeated.
The invention provides a table body for a hemispherical resonator gyro inertial navigation system and a processing method thereof, comprising the following steps of S10, determining a plurality of gyro mounting surfaces 110 on the peripheral side of a table body 100; s20, determining an assembling surface 210 of the tool 200, wherein the assembling surface 210 is used as a reference surface of the gyro mounting surfaces 110; s30, fitting and assembling the bottom surface of the table body 100 and the assembling surface 210 of the tool 200, and ensuring that one gyro installing surface 110 is horizontal; s40, processing the horizontal gyro mounting surface 110 to prepare a gyro mounting hole 120; s50, rotating the table body 100 based on the assembly surface 210 of the tool 200, sequentially enabling the rest of the gyro installation surfaces 110 to be horizontal, sequentially processing and preparing the gyro installation holes 120 on the rest of the gyro installation surfaces 110, arranging the table body 100 on the assembly surface 210 of the tool 200, enabling the plurality of gyro installation surfaces 110 to share the assembly surface 210 of the table body 100 as a reference surface, rotating the table body 100 based on the assembly surface 210 to achieve the purpose that each gyro installation surface 110 can be adjusted to be in a horizontal state, further completing the processing of the gyro installation holes 120, ensuring the processing consistency of the gyro installation holes 120, improving the processing precision and efficiency of the whole table body, further improving the manufacturing efficiency and quality of the hemispherical resonant gyro, saving the cost and facilitating the implementation.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A machining method of a table body for a hemispherical resonator gyro inertial navigation system is characterized by comprising the following steps:
s10, determining a plurality of gyro mounting surfaces on the peripheral side of the platform body;
s20, determining an assembly surface of the tool, wherein the assembly surface is used as a reference surface of the plurality of gyro mounting surfaces;
s30, fitting and assembling the bottom surface of the table body and the assembly surface of the tool, and ensuring that one gyro mounting surface is horizontal;
s40, processing the horizontal gyro mounting surface to prepare a gyro mounting hole;
s50, rotating the table body based on the assembly surface of the tool, enabling the rest of the gyro installation surfaces to be horizontal in sequence, and processing and preparing the gyro installation holes on the rest of the gyro installation surfaces in sequence.
2. The method for processing a stage for a hemispherical resonator gyroscope inertial navigation system according to claim 1, wherein the step S10 further includes:
s11, arranging assembling positions between two adjacent gyro mounting surfaces, wherein each assembling position is provided with a first assembling hole;
in the step S20, the method further includes:
and S21, processing a plurality of second assembling holes on the assembling surface, wherein the second assembling holes correspond to the first assembling holes one to one and are fixed through assembling parts.
3. The method for processing a stage for a hemispherical resonator gyroscope inertial navigation system according to claim 2, wherein the roundness error of each of the first fitting holes is less than 0.01mm, and the hole pitch error of the plurality of first fitting holes is less than 0.02 mm;
the roundness error of each second assembly hole is smaller than 0.01mm, and the hole pitch error of the second assembly holes is smaller than 0.02 mm.
4. The method for processing a stage for a hemispherical resonator gyroscope inertial navigation system according to claim 2, wherein the step S10 further includes:
s12, respectively arranging positioning surfaces on one side of each gyro mounting surface close to the bottom surface of the table body;
in the step S20, the method further includes:
s22, a positioning pin is arranged on the assembling surface of the tool, the positioning pin is in limit fit with the positioning surface, and the table body is located on the upper side of the positioning pin along the inclined direction of the assembling surface of the tool.
5. The method for processing a stage body for a hemispherical resonator gyroscope inertial navigation system according to claim 4, wherein the error of perpendicularity between the positioning surface and the assembling surface is less than 0.01 mm.
6. The method of manufacturing a stage for a hemispherical resonator gyroscope inertial navigation system according to claim 4, wherein the positional tolerance of the positioning pin with respect to the second fitting hole is less than 0.04 mm.
7. The method for processing a stage body for a hemispherical resonator gyroscope inertial navigation system according to any one of claims 1 to 6, wherein the error of flatness of the plurality of gyroscope mounting surfaces is less than 0.004 mm;
the flatness errors of the bottom surface of the table body, the assembling surface and the bottom surface of the tool are all smaller than 0.005 mm.
8. The method of processing a stage for a hemispherical resonator gyro inertial navigation system according to any one of claims 1 to 6, characterized in that the inclination of the gyro mounting surface is the same as the inclination of the mounting surface, wherein,
the error between the inclination of the gyro mounting surface and the set angle is less than 0.1';
the error between the inclination of the assembling surface and the set angle is less than 0.1'.
9. The method for manufacturing a stage for a hemispherical resonator gyro inertial navigation system according to any one of claims 1 to 6, wherein a deviation between inclinations of the plurality of gyro mounting surfaces is less than 0.1'.
10. A table body for a hemispherical resonator gyroscope inertial navigation system, which is prepared based on the processing method of the table body for the hemispherical resonator gyroscope inertial navigation system of any one of claims 1 to 9, and is characterized by comprising a table body, wherein a plurality of gyroscope installation surfaces are arranged on the peripheral side of the table body, and each gyroscope installation surface is respectively provided with a gyroscope installation hole.
Priority Applications (1)
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| CN115200613A (en) * | 2022-09-14 | 2022-10-18 | 中国船舶重工集团公司第七0七研究所 | Method for testing precision of quadrangular frustum pyramid installation surface of inertial navigation system |
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| CN115200613A (en) * | 2022-09-14 | 2022-10-18 | 中国船舶重工集团公司第七0七研究所 | Method for testing precision of quadrangular frustum pyramid installation surface of inertial navigation system |
| CN115200613B (en) * | 2022-09-14 | 2022-12-09 | 中国船舶重工集团公司第七0七研究所 | Method for testing accuracy of quadrangular frustum pyramid installation surface of inertial navigation system |
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