CN115640841A - Force feedback control system and adjusting method for thrust ring clamp of ultra-precise optical assembly - Google Patents
Force feedback control system and adjusting method for thrust ring clamp of ultra-precise optical assembly Download PDFInfo
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- CN115640841A CN115640841A CN202211386114.5A CN202211386114A CN115640841A CN 115640841 A CN115640841 A CN 115640841A CN 202211386114 A CN202211386114 A CN 202211386114A CN 115640841 A CN115640841 A CN 115640841A
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Abstract
The force feedback control system and the adjusting method of the ultra-precise optical assembly thrust ring clamp comprise the following steps: s1: determining initial contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame by using the strain gauge; s2: rotating the nut ring, recording the number of turns, and measuring by a displacement sensor to obtain the advancing distance of the screw around the thrust ring assembly; s3: determining the contact strain of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame; s4: determining whether the contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame meets the requirement or not; s5: training test data by adopting a BP neural network model; s6: and determining the contact stress of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame after deformation when different initial contact stresses and screw rotation turns are performed by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy. The control system of the invention is flexible and convenient, reliable in operation and simple in adjustment operation.
Description
Technical Field
The invention belongs to the field of assembly of high-energy solid laser devices, and particularly relates to a force feedback control system and an adjusting method for a thrust ring clamp of an ultra-precise optical assembly.
Background
The ultra-precise optical assembly is special equipment required by national major projects, and has the characteristics of high precision, high sensitivity and high reliability, when the ultra-precise optical assembly is installed due to large volume and heavy weight, an auxiliary transport carrier is required to be utilized, the ultra-precise optical assembly is assembled with an installation interface with specific dimensionality and longitude along the center of a sphere, in order to ensure the installation precision of the ultra-precise optical assembly and the interface, a multi-degree-of-freedom thrust ring is designed on the auxiliary transport carrier, the posture of the ultra-precise optical assembly can be fixed and adjusted quickly by controlling the thrust ring, but the difficulty of manual assembly is increased along with the increase of the assembly quantity and the change of the assembly position, the assembly efficiency of the ultra-precise optical assembly is reduced, and therefore, a force feedback control system and an adjusting method aiming at a thrust ring clamp are urgently needed to ensure the assembly precision. The existing force feedback control system mainly aims at medical rehabilitation training mechanical equipment or an auxiliary operation mechanism, and the force feedback control system and the adjusting method related to the assembling process of the ultra-precise optical component are rarely reported.
Disclosure of Invention
The invention provides a force feedback control system and an adjusting method for a thrust ring clamp of an ultra-precise optical assembly to overcome the defects of the prior art. The force feedback control system acquires signals through a plurality of groups of angle encoders, displacement sensors and strain nodes, obtains stress output by utilizing edge calculation, trains input signals and output stress by adopting a BP neural network algorithm, and guides how to adjust the thrust ring clamp to fix and position the attitude of the ultra-precise optical assembly.
The force feedback control system of the ultra-precise optical component thrust ring clamp comprises a first displacement sensor, a second displacement sensor, a third displacement sensor, a fourth displacement sensor, a first angle encoder, a second angle encoder, a third angle encoder, a fourth angle encoder, a thrust ring assembly and a chassis assembly; but ultra-precise optical assembly circular rotation ground cover is by the ring internal surface that thrust ring winding frame one and thrust ring winding frame two looks rotary connection formed, and thrust ring winding frame one and thrust ring winding frame two are arranged at thrust ring assembly internal surface, thrust ring assembly rigid coupling is at chassis assembly upper surface, through drive symmetric distribution in thrust ring assembly rotatory propulsion subassembly all around makes thrust ring winding frame one and thrust ring winding frame two embrace ultra-precise optical assembly, has arranged displacement sensor and angle encoder on every rotatory propulsion subassembly to measure the rotation angle and the radial displacement of rotatory propulsion subassembly, first foil gage and second foil gage symmetry respectively are fixed at the internal surface of thrust ring winding frame one and thrust ring winding frame two.
An adjusting method of a force feedback control system of a thrust ring clamp of an ultra-precise optical assembly comprises the following steps:
s1: determining initial contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame by using the strain gauge;
s2: rotating the nut ring, recording the number of turns, and measuring by a displacement sensor to obtain the advancing distance of the screw around the thrust ring assembly;
s3: determining the contact strain between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame by adopting a calculation formula;
s4: determining whether the contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame meets the requirement or not by adopting a stress calculation formula;
s5: taking initial contact stress of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame and the number of turns of rotation of the screw as input quantities, taking the deformed contact stress as output quantities, and training test data by adopting a BP neural network model;
s6: and determining the contact stress of the ultra-precise optical assembly and the deformed inner surface of the thrust ring winding frame when different initial contact stresses and screw rotation turns are determined by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy.
Further, initial contact stress between the ultra-precise optical assembly and the inner surfaces of the first thrust ring winding frame and the second thrust ring winding frame and the number of rotation turns of the first screw, the second screw, the third screw and the fourth screw are used as input quantities, contact stress after the ultra-precise optical assembly is deformed by contact with the inner surfaces of the first thrust ring winding frame and the second thrust ring winding frame is used as output quantities, and a BP neural network model is adopted to train test data;
and determining the contact stress of the ultra-precise optical assembly with the inner surfaces of the first thrust ring winding frame and the second thrust ring winding frame after deformation respectively when the ultra-precise optical assembly has different initial contact stress and rotation turns by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy and further adjusting the ring nut.
Compared with the prior art, the invention has the beneficial effects that:
the control system can actively adjust the postures of the ultra-precise component and the flange interface end, and is convenient to install.
The invention realizes the operation requirements of fixation and posture adjustment of the ultra-precise optical assembly thrust ring clamp, acquires signals through a plurality of groups of angle encoders, displacement sensors and strain nodes, trains a large amount of test data by using a BP neural network algorithm, forms a force feedback control system with reliable performance and simple use, and has simple adjustment method and strong adaptability.
The technical scheme of the invention is further explained by combining the drawings and the embodiment:
drawings
FIG. 1 is a general schematic diagram of an ultra-precision optical assembly thrust ring clamp force feedback control system;
FIG. 2 is a diagram of the operating state of the ultra-precision optical assembly thrust ring clamp force feedback control system;
FIG. 3 is a schematic diagram of an ultra-precision optical assembly thrust ring clamp force feedback control system adjustment process;
figure 4 is a process diagram executed by the ultra-precision optical assembly thrust ring fixture force feedback control system.
Wherein: 1. second nut ring, 2, second screw, 3, second thrust plate, 4, first thrust ring winding frame, 5, third nut ring, 6, third screw, 7, third thrust plate, 8, fourth nut ring, 9, fourth screw, 10, fourth thrust plate, 11, second thrust ring winding frame, 12, ultra-precise optical component, 13, first nut ring, 14, first screw, 15, first thrust plate, 16, first displacement sensor, 17, first angle encoder, 18, second displacement sensor, 19, second angle encoder, 20, third displacement sensor, 21, third angle encoder, 22, fourth displacement sensor, 23, fourth angle encoder, 24, first strain gauge, 25, second strain gauge, 26, thrust ring assembly, 27, flange, 28, component connection sphere, 29, chassis assembly, 30, slide.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
As shown in fig. 1-2, the force feedback control system for the thrust ring clamp of the ultra-precision optical assembly is characterized in that: comprises a first displacement sensor 16, a second displacement sensor 18, a third displacement sensor 20, a fourth displacement sensor 22, a first angle encoder 17, a second angle encoder 19, a third angle encoder 21, a fourth angle encoder 23, a thrust ring assembly 26 and a chassis assembly 29; but ultra-precise optical component 12 circular rotation ground cover is by the ring internal surface that thrust ring winding frame one 4 and thrust ring winding frame two 11 looks rotation connect formed, and thrust ring winding frame one 4 and thrust ring winding frame two 11 arrange at thrust ring assembly 26 internal surface, thrust ring assembly 26 rigid coupling is at chassis assembly 29 upper surface, through drive symmetric distribution in thrust ring assembly 26 rotatory propulsion subassembly all around makes thrust ring winding frame one 4 and thrust ring winding frame two 11 embrace ultra-precise optical component 12, has arranged displacement sensor and angle encoder on every rotatory propulsion subassembly to measure the rotation angle and the radial displacement of rotatory propulsion subassembly, first foil gage 24 and second foil gage 25 symmetry respectively fix at the internal surface of thrust ring winding frame one 4 and thrust ring winding frame two 11.
When the scheme works, the chassis assembly 29 is in rolling contact with the slide way 30, one end of the slide way 30 is fixedly connected to the component connecting ball 28, and the flange 27 is arranged on the component connecting ball 28.
The rotary propelling component comprises a first nut ring 13, a second nut ring 1, a third nut ring 5, a fourth nut ring 8, a first screw 14, a second screw 2, a third screw 6, a fourth screw 9, a first thrust plate 15, a second thrust plate 3, a third thrust plate 7 and a fourth thrust plate 10;
a first nut ring 13, a second nut ring 1, a third nut ring 5 and a fourth nut ring 8, so that a first screw 14, a second screw 2, a third screw 6 and a fourth screw 9 which respectively form a screw transmission with the thrust ring assembly 26 move along the axis direction of the thrust ring assembly 26 to push a first thrust plate 15, a second thrust plate 3, a third thrust plate 7 and a fourth thrust plate 10 which are respectively in contact fit with the first screw 14, the second screw 2, the third screw 6 and the fourth screw 9 to move along the axis direction of the thrust ring assembly 26, so that a first thrust ring winding frame 4 and a second thrust ring winding frame 11 embrace the ultra-precise optical component 12; the first displacement sensor 16, the second displacement sensor 18, the third displacement sensor 20 and the fourth displacement sensor 22 are fixedly connected to the surface of a thrust ring assembly 26 which is in sliding contact with the first thrust plate 15, the second thrust plate 3, the third thrust plate 7 and the fourth thrust plate 10 respectively, the first angle encoder 17 and the third angle encoder 21 are arranged on the end surfaces of the first nut ring 13 and the third nut ring 5 respectively, and the second angle encoder 19 and the fourth angle encoder 23 are arranged on the end surfaces of the second nut ring 1 and the fourth nut ring 8 respectively.
Four sets of displacement sensors are symmetrically and fixedly connected on the sliding surfaces of the four sets of thrust plates, four sets of angle encoders are symmetrically and fixedly connected on the end surfaces of the four sets of nut rings, and a first strain gauge 24 and a second strain gauge 25 are respectively and symmetrically and fixedly connected on the inner surfaces of the first thrust ring winding frame 4 and the second thrust ring winding frame 11 in a clockwise 45-degree angle manner in the horizontal direction. The strain gauge is a packaged strain gauge.
The strain gauge and the angle encoder are set as a signal acquisition module, the screw rotation and displacement sensor is set as an output module,
the control of the above embodiment is utilized to realize that the signal acquisition module, the BP neural network control module and the output module construct a force feedback control regulation scheme.
Further, the first displacement sensor 16 and the third displacement sensor 20 are arranged in a central symmetry, and the second displacement sensor 18 and the fourth displacement sensor 22 are arranged in a central symmetry.
Further, the first angle encoder 17 and the third angle encoder 21 are arranged axially symmetrically.
Further, the second angle encoder 19 and the fourth angle encoder 23 are arranged in a central symmetry.
Based on the above embodiment, as a possible implementation manner, with reference to fig. 3 and 4, there is provided an adjusting method of a force feedback control system of a thrust ring clamp of an ultra-precision optical assembly, the method includes the steps of:
s1: determining initial contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame by using the strain gauge;
s2: rotating the nut ring, recording the number of turns, and measuring by a displacement sensor to obtain the advancing distance of the screw around the thrust ring assembly;
s3: determining the contact strain between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame by adopting a calculation formula;
s4: determining whether the contact stress of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame meets the requirement or not by adopting a stress calculation formula;
s5: taking initial contact stress of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame and the number of turns of rotation of the screw as input quantities, taking the deformed contact stress as output quantities, and training test data by adopting a BP neural network model;
s6: and determining the contact stress of the ultra-precise optical assembly and the deformed inner surface of the thrust ring winding frame when different initial contact stresses and screw rotation turns are determined by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy.
In the above embodiment, the strain gauge and the angle encoder are set as the signal acquisition module, and the screw rotation and displacement sensor is set as the output module.
The force feedback control regulation scheme is constructed by utilizing the control realization signal acquisition module, the BP neural network control module and the output module of the embodiment.
Specifically, the first strain gauge is utilized in step S124 and the second strain gauge 25 determine the initial contact stress σ of the ultra-precise optical assembly 12 with the inner surfaces of the first thrust collar winding frame 4 and the second thrust collar winding frame 11 10 And σ 20 ；
The step S2 specifically comprises the following steps: the number of recorded turns is n i The rings (i =1,2,3,4) are measured by the first displacement sensor 16, the second displacement sensor 18, the third displacement sensor 20, and the fourth displacement sensor 22 to obtain the advancing distances S of the first screw 14, the second screw 2, the third screw 6, and the fourth screw 9 i The advance distance is given by the formula S i ＝n i p (i =1,2,3,4), where p is the pitch. n is a radical of an alkyl radical i The number of turns of the corresponding nut ring is shown, and the numbers are expressed in a unified mode. S. the i The corresponding screw advancing distance is shown, and the codes are expressed in a unified way.
The step S3 specifically includes: determining the contact strain of the ultra-precise optical assembly 12 with the inner surfaces of the first thrust ring winding frame 4 and the second thrust ring winding frame 11 respectively
And
the step S4 specifically comprises the following steps: using the formula sigma 11 ＝kε 1 ≥[σ 1 ]，σ 21 ＝kε 2 ≥[σ 2 ]And formula | σ 11 -σ 21 |≤[σ]Determining the contact stress sigma of the ultra-precise optical assembly 12 and the inner surfaces of the first thrust ring winding frame 4 and the second thrust ring winding frame 11 11 And σ 21 If the use requirement is met, executing the next step if the use requirement is met, otherwise, acquiring the contact stress meeting the use requirement again; wherein [ sigma ] 1 ]Indicates the allowable stress at the junction of the thrust ring winding frame-4 and the ultra-precise optical assembly 12 [ sigma ] 2 ]Indicates the allowable stress at the joint of the second thrust ring winding frame 11 and the ultra-precise optical assembly 12, [ sigma ]]K is the contact rigidity of the ultra-precise optical assembly 12 with the first thrust collar winding frame 4 and the second thrust collar winding frame 11 respectively, and the contact rigidity can be approximately taken as the first thrust collar winding frame 4 and the second thrust collar winding frame 11And the elastic modulus E, k is approximately equal to E of the second thrust ring winding frame 11.
The step S5 specifically comprises the following steps: initial contact stress sigma of the ultra-precise optical assembly 12 with the inner surfaces of the first thrust ring winding frame 4 and the second thrust ring winding frame 11 10 、σ 20 And the number of turns n of the first screw 14, the second screw 2, the third screw 6 and the fourth screw 9 i For inputting quantity, the contact stress sigma after the contact deformation of the ultra-precise optical assembly 12 with the inner surfaces of the first thrust ring winding frame 4 and the second thrust ring winding frame 11 respectively 11 、σ 21 For output, training the test data by using a BP neural network model, wherein the number of the neurons in the hidden layer is N =8.
The step S6 specifically comprises the following steps: and determining the contact stress of the ultra-precise optical component 12 and the deformed inner surfaces of the first thrust ring winding frame 4 and the second thrust ring winding frame 11 respectively when the initial contact stress and the rotation turns are different by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy and further adjusting the ring nut.
The force feedback control system and the adjusting method have the characteristics of reliable work, flexible operation, stable operation, high efficiency, strong applicability and simple and convenient adjusting operation.
The present invention is not limited to the above embodiments, and those skilled in the art can make various changes and modifications without departing from the scope of the invention.
Claims (10)
1. Ultraprecise optical assembly thrust ring anchor clamps force feedback control system, its characterized in that: the device comprises a first displacement sensor (16), a second displacement sensor (18), a third displacement sensor (20), a fourth displacement sensor (22), a first angle encoder (17), a second angle encoder (19), a third angle encoder (21), a fourth angle encoder (23), a thrust ring assembly (26) and a chassis assembly (29);
but ultra-precise optical assembly (12) circumferential rotation ground cover is at the ring internal surface that is formed by thrust ring winding frame (4) and thrust ring winding frame two (11) rotation connection each other, and thrust ring winding frame (4) and thrust ring winding frame two (11) are arranged at thrust ring assembly (26) internal surface, thrust ring assembly (26) rigid coupling is in chassis assembly (29) upper surface, through drive symmetric distribution in thrust ring assembly (26) rotatory propulsion subassembly all around, make thrust ring winding frame (4) and thrust ring winding frame two (11) embrace ultra-precise optical assembly (12), arranged displacement sensor and angle encoder on every rotatory propulsion subassembly to measure the rotation angle and the radial displacement of rotatory propulsion subassembly, first foil gage (24) and second foil gage (25) symmetry are fixed respectively at the internal surface of thrust ring winding frame one (4) and thrust ring winding frame two (11).
2. The ultra-precision optical assembly thrust ring clamp force feedback control system of claim 1, wherein: the rotary propelling component comprises a first nut ring (13), a second nut ring (1), a third nut ring (5), a fourth nut ring (8), a first screw (14), a second screw (2), a third screw (6), a fourth screw (9), a first thrust plate (15), a second thrust plate (3), a third thrust plate (7) and a fourth thrust plate (10);
a first nut ring (13), a second nut ring (1), a third nut ring (5) and a fourth nut ring (8) which respectively form screw rod transmission with the thrust ring assembly (26), wherein a first screw rod (14), a second screw rod (2), a third screw rod (6) and a fourth screw rod (9) move along the axis direction of the thrust ring assembly (26) to push a first thrust plate (15), a second thrust plate (3), a third thrust plate (7) and a fourth thrust plate (10) which are respectively in contact fit with the first screw rod (14), the second screw rod (2), the third screw rod (6) and the fourth screw rod (9) to move along the axis direction of the thrust ring assembly (26), so that the first thrust ring winding frame (4) and the second thrust ring winding frame (11) embrace the ultra-precision optical component (12); the first displacement sensor (16), the second displacement sensor (18), the third displacement sensor (20) and the fourth displacement sensor (22) are fixedly connected to the surfaces of thrust ring assemblies (26) which are in sliding contact with the first thrust plate (15), the second thrust plate (3), the third thrust plate (7) and the fourth thrust plate (10) respectively, the first angle encoder (17) and the third angle encoder (21) are arranged on the end faces of the first nut ring (13) and the third nut ring (5) respectively, and the second angle encoder (19) and the fourth angle encoder (23) are arranged on the end faces of the second nut ring (1) and the fourth nut ring (8) respectively.
3. The ultra-precision optical assembly thrust ring clamp force feedback control system of claim 2, wherein: the first displacement sensor (16) and the third displacement sensor (20) are arranged in a centrosymmetric manner, and the second displacement sensor (18) and the fourth displacement sensor (22) are arranged in a centrosymmetric manner.
4. The ultra-precision optical assembly thrust ring clamp force feedback control system of claim 2, wherein: the first angle encoder (17) and the third angle encoder (21) are arranged in axial symmetry.
5. The ultra-precision optical assembly thrust ring clamp force feedback control system of claim 2, wherein: the second angle encoder (19) and the fourth angle encoder (23) are arranged in a centrosymmetric manner.
6. A method of adjusting a thrust ring clamp force feedback control system for an ultra-precision optical assembly as recited in any of claims 1-5, wherein: the method comprises the following steps:
s1: determining initial contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame by using the strain gauge;
s2: rotating the nut ring, recording the number of turns, and measuring by a displacement sensor to obtain the advancing distance of the screw around the thrust ring assembly;
s3: determining the contact strain of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame;
s4: determining whether the contact stress between the ultra-precise optical assembly and the inner surface of the thrust ring winding frame meets the requirement;
s5: taking initial contact stress of the ultra-precise optical assembly and the inner surface of the thrust ring winding frame and the number of rotating circles of the screw as input quantities, taking the deformed contact stress as output quantities, and training test data by adopting a BP neural network model;
s6: and determining the contact stress of the ultra-precise optical assembly and the deformed inner surface of the thrust ring winding frame when different initial contact stresses and screw rotation turns are determined by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy.
7. The method of adjusting an ultra-precision optical assembly thrust ring clamp force feedback control system of claim 6, wherein: the step S1 specifically comprises the following steps: determining initial contact stress sigma of the ultra-precise optical component (12) and the inner surfaces of the first thrust ring winding frame (4) and the second thrust ring winding frame (11) by using the first strain gauge (24) and the second strain gauge (25) 10 And σ 20 ；
The step S2 specifically comprises the following steps: the number of recorded turns is n i A ring (i =1,2,3, 4), and the advancing distances S of the first screw (14), the second screw (2), the third screw (6), and the fourth screw (9) are measured by a first displacement sensor (16), a second displacement sensor (18), a third displacement sensor (20), and a fourth displacement sensor (22) to obtain i The advancing distance is represented by the formula S i ＝n i p (i =1,2,3,4), where p is the pitch.
8. The method of adjusting an ultra-precision optical assembly thrust ring clamp force feedback control system of claim 7, wherein: the step S3 specifically comprises the following steps: determining the contact strain of the ultra-precise optical component (12) with the inner surfaces of the first thrust ring winding frame (4) and the second thrust ring winding frame (11) respectively
And
the step S4 specifically comprises the following steps: using the formula sigma 11 ＝kε 1 ≥[σ 1 ]，σ 21 ＝kε 2 ≥[σ 2 ]And equation | σ 11 -σ 21 |≤[σ]Determining the contact stress sigma of the ultra-precise optical component (12) and the inner surfaces of the first thrust ring winding frame (4) and the second thrust ring winding frame (11) 11 And σ 21 If the use requirement is met, executing the next step if the use requirement is met, otherwise, acquiring the contact stress meeting the use requirement again;
wherein [ sigma ] 1 ]Indicates the allowable stress at the junction of the thrust ring winding frame-4 and the ultra-precise optical assembly 12 [ sigma ] 2 ]Showing allowable stress [ sigma ] at the joint of the second thrust ring winding frame 11 and the ultra-precise optical assembly 12]And k is the contact rigidity of the ultra-precise optical assembly 12 with the first thrust ring winding frame (4) and the second thrust ring winding frame (11), wherein the contact rigidity can be the elastic modulus of the first thrust ring winding frame (4) and the second thrust ring winding frame (11), and k is approximately equal to E.
9. The method of adjusting an ultra-precision optical assembly thrust ring clamp force feedback control system of claim 8, wherein: the step S5 specifically comprises the following steps: the initial contact stress sigma of the ultra-precise optical component (12) and the inner surfaces of the first thrust ring winding frame (4) and the second thrust ring winding frame (11) is used 10 、σ 20 And the number of turns n of the first screw (14), the second screw (2), the third screw (6) and the fourth screw (9) in rotation respectively i For inputting quantity, the contact stress sigma after the contact deformation of the ultra-precise optical component (12) and the inner surfaces of the first thrust ring winding frame (4) and the second thrust ring winding frame (11) is respectively used 11 、σ 21 For output, a BP neural network model is adopted to train test data.
10. The method of adjusting an ultra-precision optical assembly thrust ring clamp force feedback control system of claim 8 or 9, wherein: the step S6 specifically comprises the following steps: and determining the contact stress of the ultra-precise optical assembly (12) and the inner surfaces of the first thrust ring winding frame (4) and the second thrust ring winding frame (11) after deformation respectively when the ultra-precise optical assembly has different initial contact stress and rotation turns by using the trained BP neural network model, and taking the contact stress as a basis for judging the assembly accuracy and further adjusting the ring nut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211386114.5A CN115640841B (en) | 2022-11-07 | 2022-11-07 | Ultra-precise optical assembly thrust collar clamp force feedback control system and adjusting method |
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| CN202211386114.5A CN115640841B (en) | 2022-11-07 | 2022-11-07 | Ultra-precise optical assembly thrust collar clamp force feedback control system and adjusting method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903533A (en) * | 2017-03-31 | 2017-06-30 | 苏州亚思科精密数控有限公司 | A kind of precision machine tool upper fixture locking method |
| DE102017003166A1 (en) * | 2016-03-31 | 2017-10-05 | Freni Brembo S.P.A. | BRAKE CALIPER OF A DISC BRAKE WITH ELECTROMECHANICAL ACTUATION WITH AN ELASTIC PROTECTION ELEMENT |
| CN111950099A (en) * | 2020-08-03 | 2020-11-17 | 中国石油大学(华东) | Method, system, medium and computer equipment for testing mechanical property of equipment material |
| CN217552217U (en) * | 2022-06-28 | 2022-10-11 | 中山迈雷特数控技术有限公司 | Pneumatic clamp with rotating and stretching functions |
-
2022
- 2022-11-07 CN CN202211386114.5A patent/CN115640841B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017003166A1 (en) * | 2016-03-31 | 2017-10-05 | Freni Brembo S.P.A. | BRAKE CALIPER OF A DISC BRAKE WITH ELECTROMECHANICAL ACTUATION WITH AN ELASTIC PROTECTION ELEMENT |
| CN106903533A (en) * | 2017-03-31 | 2017-06-30 | 苏州亚思科精密数控有限公司 | A kind of precision machine tool upper fixture locking method |
| CN111950099A (en) * | 2020-08-03 | 2020-11-17 | 中国石油大学(华东) | Method, system, medium and computer equipment for testing mechanical property of equipment material |
| CN217552217U (en) * | 2022-06-28 | 2022-10-11 | 中山迈雷特数控技术有限公司 | Pneumatic clamp with rotating and stretching functions |
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