CN113381186B - Coaxiality adjusting method for large-span split type automatic posture adjusting equipment - Google Patents
Coaxiality adjusting method for large-span split type automatic posture adjusting equipment Download PDFInfo
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- CN113381186B CN113381186B CN202110704467.4A CN202110704467A CN113381186B CN 113381186 B CN113381186 B CN 113381186B CN 202110704467 A CN202110704467 A CN 202110704467A CN 113381186 B CN113381186 B CN 113381186B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
Abstract
The invention relates to a coaxiality adjusting method for large-span split type automatic posture adjusting equipment, which comprises the following steps of: step 1: auxiliary measuring devices with adjusting reference surfaces are respectively arranged at the driving end and the driven end; step 2: adjusting reference surfaces of the driving end and the driven end are parallel to the rotation axis and are equidistant; and step 3: adjusting the level of the adjusting reference surfaces of the driving end and the driven end; and 4, step 4: and the coaxiality of the rotation axes of the driving end and the driven end is adjusted through the adjusting reference surfaces of the driving end and the driven end. The high-precision adjusting method for the coaxiality of the large-span split structure realizes the high-precision requirement of the large-span coaxiality, and effectively solves the problem that the connected antenna array surface is damaged due to the fact that the rotation axes at the two ends of the automatic attitude adjusting equipment are not coaxial, so that the major quality problem and the economic loss of products are avoided, and the large technical application value and the large economic value are achieved.
Description
Technical Field
The invention relates to the technical field of waveguide antennas, in particular to a coaxiality adjusting method for large-span split type automatic attitude adjusting equipment.
Background
With the continuous progress of radar technology, the modern phased array radar develops towards the direction of structural size lightness and thinness and function high integration, and the antenna array surface of the phased array radar has the characteristics of large caliber and high precision. The antenna array surface equipment is large in quantity and high in density, a large number of electronic components and interconnected cables are contained in the antenna array surface equipment, and the assembling difficulty of the antenna array surface is greatly increased. Meanwhile, the current radar products are fast in iteration updating and short in development period, the assembly period allocated to the antenna array surface is further compressed, the production rhythm is accelerated particularly for the radars in batch production, and new higher requirements are provided for efficient assembly of the antenna array surface.
In order to realize the efficient assembly of the antenna array surface, on the premise of optimal process flow, the proper posture of the antenna array surface is selected according to the change of an assembly object so as to achieve the most comfortable ergonomics. Therefore, an automatic posture adjusting device is provided, which is connected with two ends of an antenna array surface in the length direction of the antenna array surface, and realizes the posture change of the antenna array surface through the rotation of a rotating shaft of the automatic posture adjusting device. Practice proves that the automatic posture adjusting equipment can greatly improve the assembly efficiency of the antenna array surface, but because the split structure is large in span at two ends, the span can reach tens of meters, the problem that the coaxiality of rotating shafts at two ends is large exists in the building process, the antenna array surface is easily twisted in the subsequent rotating process, and the framework of the antenna array surface is seriously damaged, so that the great quality problem and the economic loss are caused.
Disclosure of Invention
The invention aims to provide a coaxiality adjusting method for large-span split type automatic posture adjusting equipment aiming at the prior art, wherein the automatic posture adjusting equipment consists of a driving end and a driven end, and is characterized by comprising the following steps of:
step 1: auxiliary measuring devices with adjusting reference surfaces are respectively arranged at the driving end and the driven end;
step 2: adjusting reference surfaces of the driving end and the driven end are parallel to the rotation axis and are equidistant;
and step 3: adjusting the level of the adjusting reference surfaces of the driving end and the driven end;
and 4, step 4: adjusting the coaxiality of the rotation axes of the driving end and the driven end through the adjusting reference surfaces of the driving end and the driven end;
the adjustment reference plane comprises a horizontal reference plane and a vertical reference plane.
Further, in step 1, the auxiliary measuring device comprises a double reference surface and a support body; the double reference surfaces are arranged at the top of the support body and are a horizontal reference surface and a vertical reference surface which are vertical to each other; the support body is connected with the automatic posture adjusting equipment.
Further, in step 2, the method further comprises the following steps:
step 21: measuring the measurement data of the parallelism between the vertical reference surface and the horizontal reference surface of the double reference surfaces and the rotation axis by adopting a flexible three-coordinate measuring instrument on the basis of the rotation axis of the driving end;
step 22: adjusting the angle postures of the horizontal reference surfaces of the two reference surfaces by adding a gasket at the bottom of the support body of the active end, enabling the parallelism between the horizontal reference surface arranged at the active end and the rotation axis to be less than 0.05mm, and recording measurement data of the distance between the reference surface of the auxiliary measuring device and the rotation axis;
step 23: the parallelism and distance of the vertical reference surface of the driven end relative to the rotation axis are consistent with the parallelism and distance measurement data of the vertical reference surface of the driving end relative to the rotation axis by adjusting the clearance between the support body mounting hole of the driven end and the fastener;
step 24: and adding a gasket at the bottom of the support body of the driven end to enable the parallelism and distance size of the horizontal reference surface of the driven end relative to the rotation axis to be consistent with the parallelism and distance measurement data of the horizontal reference surface of the driving end relative to the rotation axis.
Further, in step 3, the levelness of the horizontal reference surfaces of the driving end and the driven end is adjusted to be within 5 ".
Further, in step 4, the adjustment reference surfaces of the driving end and the driven end are calibrated and adjusted by the laser tracker.
Further, in step 4, the method further comprises the following steps:
step 41: a target ball of the mobile laser tracker collects a plurality of points on the reference surfaces of the measuring devices at the two ends to perform fitting plane, and the height difference of the horizontal reference surface and the misalignment amount of the vertical reference surface are calculated in a fitting manner;
step 42: according to the measurement deviation result, the driven end is adjusted by taking the driving end as a reference, so that the two ends tend to be consistent as much as possible;
step 43: re-measuring the height difference of the horizontal reference surfaces at the two ends and the misalignment amount of the vertical reference surface to control the deviation to be 0.05mm;
step 44: and measuring the coaxiality of the intersecting lines of the reference surfaces of the driving end and the driven end, so that the coaxiality of the rotating axes of the two ends of the automatic posture adjusting equipment meets the requirement.
The beneficial effects of the invention include:
the high-precision adjusting method for the coaxiality of the large-span split structure, disclosed by the invention, realizes the high-precision adjusting requirement of the large-span coaxiality, and effectively solves the problem that the connected antenna array surface is damaged due to the fact that the rotation axes at the two ends of the automatic attitude adjusting equipment are not coaxial, so that the major quality problem and the economic loss of a product are avoided, and the high-precision adjusting method has a higher technical application value and a higher economic value.
Drawings
FIG. 1 is a coaxiality adjusting method for a large-span split type automatic posture adjusting device, provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an automatic posture adjustment device in a coaxiality adjustment method for a large-span split type automatic posture adjustment device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an auxiliary measuring device in the coaxiality adjusting method for the large-span split type automatic posture adjusting equipment according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of connection between an auxiliary measuring device and an automatic posture adjustment device in a coaxiality adjustment method for a large-span split type automatic posture adjustment device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a laser tracker in the coaxiality adjusting method for the large-span split type automatic posture adjusting device according to the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described in more detail below with reference to the accompanying drawings, and the present invention includes, but is not limited to, the following embodiments.
As shown in the attached drawings 1-2, the coaxiality adjusting method for the large-span split type automatic attitude adjusting equipment comprises a driving end and a driven end, wherein an antenna array surface is driven to rotate by the rotation of a motor at the driving end, so that the attitude adjustment of the connected antenna array surface is realized; when equipment is built, the position of the automatic posture adjusting equipment is fixed firstly, the antenna array surface is hoisted and connected with the equipment, if rotating shafts at two ends of the automatic posture adjusting equipment are not coaxial, the antenna array surface is twisted easily in the rotating process, and the framework of the antenna array surface is seriously damaged, so that the serious quality problem and the economic loss are caused.
The method comprises the following steps:
step 1: auxiliary measuring devices with adjusting reference surfaces are respectively arranged at the driving end and the driven end;
step 2: adjusting reference surfaces of the driving end and the driven end are parallel to the rotation axis and are equidistant;
and step 3: adjusting the level of the adjusting reference surfaces of the driving end and the driven end;
and 4, step 4: and the coaxiality of the rotation axes of the driving end and the driven end is adjusted through the adjusting reference surfaces of the driving end and the driven end.
As shown in fig. 3-4, in step 1, in order to meet the high-precision requirement of the coaxiality of the rotating shafts at the two ends of the automatic posture adjusting equipment, an auxiliary measuring device is selected as a measuring reference, so that the installation and adjustment of the automatic posture adjusting equipment are efficiently guided, and the high-precision requirement of the coaxiality of the rotating shafts at the two ends is effectively met. Specifically, the auxiliary measuring device comprises a double reference surface and a supporting body; the double reference surfaces are arranged at the top of the support body and are two auxiliary measuring reference surfaces which are vertical to each other, and the verticality requirement of the two reference surfaces is 0.02mm; the support body is connected with the automatic posture adjusting equipment, and the support body is used for elevating the double reference surfaces, so that the subsequent calibration and measurement of the reference surfaces are facilitated. The mounting holes on the support body and the double reference surfaces are designed and processed by adopting the same reference as the mounting holes for mounting the rotary bearing seat in the automatic attitude adjusting equipment, and the dimensional tolerance is 0.05mm.
In step 2, the method further comprises the following steps:
step 21: measuring the measurement data of the parallelism between the vertical reference surface and the horizontal reference surface of the double reference surfaces and the rotation axis by adopting a flexible three-coordinate measuring instrument on the basis of the rotation axis of the driving end;
step 22: adjusting the angle postures of the horizontal reference surfaces of the double reference surfaces by adding a gasket at the bottom of the support body of the active end, enabling the parallelism between the horizontal reference surface arranged at the active end and the rotation axis to be less than 0.05mm through multiple adjustment and retest, and synchronously recording the measurement data of the distance between the reference surface of the auxiliary measurement device and the rotation axis;
step 23: fine adjustment is carried out through a gap between a support body mounting hole of the driven end and the fastener, so that the parallelism and distance of the vertical reference surface of the driven end relative to the rotation axis are consistent with the parallelism and distance measurement data of the vertical reference surface of the driving end relative to the rotation axis;
step 24: the mode of adding a gasket at the bottom of the support body of the driven end is adopted, and the parallelism and distance size of the horizontal reference plane of the driven end relative to the rotation axis are consistent with those of the horizontal reference plane of the driving end relative to the rotation axis through multiple times of adjustment and retest of the angular posture of the horizontal reference plane of the driven end.
In step 3, the image-combining level meter is adopted to measure the horizontal reference surfaces of the driving end and the driven end, and the levelness of the horizontal reference surfaces at the two ends is controlled within 5' by adjusting the adjusting screws at the bottoms of the driving end and the driven end of the automatic posture adjusting equipment and the like.
As shown in fig. 5, in step 4, after the parameters of the double reference surfaces at the two ends relative to the rotation axis are adjusted to be consistent, the coaxial measurement is performed by replacing the rotation axis with the intersection line of the double reference surfaces. Theoretically, the intersecting lines of the reference planes are coaxial, and the rotating axes at the two ends are coaxial. And using a laser tracker to calibrate the double reference surfaces at the two ends, wherein the specific calibration and measurement method comprises the following steps:
step 41: a plurality of points are collected on the reference surfaces of the measuring devices at the two ends by the movable target ball to carry out fitting on a plane, and the height difference of the horizontal reference surface and the misalignment amount of the vertical reference surface are calculated in a fitting manner;
step 42: according to the measurement deviation result, the driven end is adjusted by taking the driving end as a reference, so that the two ends tend to be consistent as much as possible;
step 43: re-measuring the height difference of the horizontal reference surfaces at the two ends and the misalignment of the vertical reference surfaces to control the deviation to be 0.05mm;
step 44: and measuring the coaxiality of the intersecting lines of the reference surfaces of the driving end and the driven end, so that the coaxiality of the rotating axes of the two ends of the automatic posture adjusting equipment meets the requirement.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other various embodiments according to the disclosure of the embodiments and the drawings, and therefore, all designs that can be easily changed or modified by using the design structure and thought of the present invention fall within the protection scope of the present invention.
Claims (6)
1. A coaxiality adjusting method for large-span split type automatic posture adjusting equipment is characterized by comprising a driving end and a driven end, and comprises the following steps:
step 1: auxiliary measuring devices with adjusting reference surfaces are respectively arranged at the driving end and the driven end;
step 2: adjusting reference surfaces of the driving end and the driven end are parallel to the rotation axis and are equidistant;
and step 3: adjusting the level of the adjusting reference surfaces of the driving end and the driven end;
and 4, step 4: adjusting the coaxiality of the rotation axes of the driving end and the driven end through the adjusting reference surfaces of the driving end and the driven end;
the adjustment reference plane comprises a horizontal reference plane and a vertical reference plane.
2. The coaxiality adjustment method according to claim 1, wherein in step 1, the auxiliary measuring device includes a double reference surface and a support body; the double datum planes are arranged at the top of the support body and are a horizontal datum plane and a vertical datum plane which are perpendicular to each other; the support body is connected with the automatic posture adjusting equipment.
3. The coaxiality adjustment method according to claim 1, further comprising, in step 2, the steps of:
step 21: measuring the measurement data of the parallelism between the vertical reference surface and the horizontal reference surface of the double reference surfaces and the rotation axis by adopting a flexible three-coordinate measuring instrument on the basis of the rotation axis of the driving end;
step 22: adjusting the angle postures of the horizontal reference surfaces of the two reference surfaces by adding a gasket at the bottom of the support body of the active end, enabling the parallelism between the horizontal reference surface arranged at the active end and the rotation axis to be less than 0.05mm, and recording measurement data of the distance between the reference surface of the auxiliary measuring device and the rotation axis;
step 23: the parallelism and distance of the vertical reference surface of the driven end relative to the rotation axis are consistent with the parallelism and distance measurement data of the vertical reference surface of the driving end relative to the rotation axis by adjusting the clearance between the support body mounting hole of the driven end and the fastener;
step 24: and adding a gasket at the bottom of the support body of the driven end to enable the parallelism and distance size of the horizontal reference surface of the driven end relative to the rotation axis to be consistent with the parallelism and distance measurement data of the horizontal reference surface of the driving end relative to the rotation axis.
4. The coaxiality adjustment method according to claim 1, wherein in step 3, the levelness of the horizontal reference surfaces of the driving end and the driven end is adjusted to within 5 ".
5. The coaxiality adjustment method according to claim 1, wherein in step 4, the adjustment reference surfaces of the driving end and the driven end are calibrated and adjusted by a laser tracker.
6. The coaxiality adjustment method according to claim 5, further comprising, in step 4, the steps of:
step 41: a target ball of the mobile laser tracker collects a plurality of points on the reference surfaces of the measuring devices at the two ends to perform fitting on a plane, and the height difference of the horizontal reference surface and the misalignment amount of the vertical reference surface are calculated in a fitting manner;
step 42: according to the measurement deviation result, the driven end is adjusted by taking the driving end as a reference, so that the two ends tend to be consistent as much as possible;
step 43: re-measuring the height difference of the horizontal reference surfaces at the two ends and the misalignment amount of the vertical reference surface to control the deviation to be 0.05mm;
step 44: and measuring the coaxiality of the intersecting lines of the reference surfaces of the driving end and the driven end, so that the coaxiality of the rotating axes of the two ends of the automatic posture adjusting equipment meets the requirement.
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| CN202110704467.4A CN113381186B (en) | 2021-06-24 | 2021-06-24 | Coaxiality adjusting method for large-span split type automatic posture adjusting equipment |
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| CN202110704467.4A CN113381186B (en) | 2021-06-24 | 2021-06-24 | Coaxiality adjusting method for large-span split type automatic posture adjusting equipment |
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| CN113381186B true CN113381186B (en) | 2022-10-14 |
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| CN114264270A (en) * | 2021-12-26 | 2022-04-01 | 中国电子科技集团公司第十四研究所 | High-precision measurement method for coaxiality of large-span split structure |
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| CN109212497A (en) * | 2018-10-30 | 2019-01-15 | 哈尔滨工业大学 | A kind of measurement of space six degree of freedom vehicle radar antenna pose deviation and interconnection method |
| CN111230442A (en) * | 2020-03-10 | 2020-06-05 | 中烜航空科技(上海)有限公司 | Large-scale automation equipment for automatic shaft assembly |
| WO2020119912A1 (en) * | 2018-12-13 | 2020-06-18 | Leica Geosystems Ag | Measurement method, measurement systems and auxiliary measurement instruments |
| CN112736465A (en) * | 2020-12-31 | 2021-04-30 | 中国电子科技集团公司第十四研究所 | Automatic posture adjusting equipment for radar antenna array surface |
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| CN109212497A (en) * | 2018-10-30 | 2019-01-15 | 哈尔滨工业大学 | A kind of measurement of space six degree of freedom vehicle radar antenna pose deviation and interconnection method |
| WO2020119912A1 (en) * | 2018-12-13 | 2020-06-18 | Leica Geosystems Ag | Measurement method, measurement systems and auxiliary measurement instruments |
| CN111230442A (en) * | 2020-03-10 | 2020-06-05 | 中烜航空科技(上海)有限公司 | Large-scale automation equipment for automatic shaft assembly |
| CN112736465A (en) * | 2020-12-31 | 2021-04-30 | 中国电子科技集团公司第十四研究所 | Automatic posture adjusting equipment for radar antenna array surface |
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