WO2024082867A1 - 一种用于卫星镜筒叶肋的组装校型工装及装配方法 - Google Patents

一种用于卫星镜筒叶肋的组装校型工装及装配方法 Download PDF

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Publication number
WO2024082867A1
WO2024082867A1 PCT/CN2023/117920 CN2023117920W WO2024082867A1 WO 2024082867 A1 WO2024082867 A1 WO 2024082867A1 CN 2023117920 W CN2023117920 W CN 2023117920W WO 2024082867 A1 WO2024082867 A1 WO 2024082867A1
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WIPO (PCT)
Prior art keywords
assembly
rib
support arm
blade
arm
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PCT/CN2023/117920
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English (en)
French (fr)
Inventor
***
吕雉
许建锋
张少博
李登洪
张�杰
张伟强
苏海龙
王佳民
吴亚明
Original Assignee
西安鑫垚陶瓷复合材料股份有限公司
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Publication of WO2024082867A1 publication Critical patent/WO2024082867A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02—Assembly jigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for

Definitions

  • the invention relates to the technical field of shaping tooling, and in particular to an assembly shaping tooling and an assembly method for satellite lens barrel blade ribs.
  • C/SiC composite materials have the advantages of low density, high strength, high temperature resistance, wear resistance, corrosion resistance, high toughness, and oxidation resistance.
  • the forming method of C/SiC composite parts is: the carbon fiber cloth is sewn on the mold with carbon fiber bundles, and the carbon fiber cloth is continuously densified by chemical vapor deposition (CVI) method, so that the carbon fiber cloth is continuously hardened and gradually forms the required part shape. Therefore, C/SiC composite parts are generally thin-walled parts.
  • the blade ribs in the satellite C/SiC lens barrel components include arms and blade rib arc plates, which are formed by continuously densifying carbon fiber cloth using the chemical vapor deposition (CVI) method. After the blade rib arms and blade rib arc plates are assembled into the blade rib as a whole, vapor deposition needs to be performed again.
  • the blade rib arms and blade rib arc plates are thin-walled parts, they are easy to deform under the action of pressure, and the thin wall thickness of the parts is easy to vibrate under the action of cutting force. Therefore, when assembling the blade ribs together, a certain amount of force needs to be applied during the assembly process to ensure the assembly accuracy.
  • there is a lack of tooling to assist in the calibration which affects the accuracy of the blade rib assembly and subsequent molding.
  • the purpose of the present invention is to provide a tooling and assembly method for satellite lens barrel blade ribs, so as to solve the problem that the existing C/SiC composite thin-walled parts lack tooling for auxiliary shaping, thereby affecting Affects the assembly accuracy.
  • a tool for assembling and profiling satellite lens barrel blade ribs comprising a mounting platform and a positioning sleeve, a first arm shaping assembly, a second arm shaping assembly, and a third arm shaping assembly arranged on the mounting platform;
  • the positioning sleeve comprises a fixed cylinder and a limiting cylinder arranged on the top of the fixed cylinder, and the limiting cylinder is detachably connected to the fixed cylinder;
  • the first arm shaping assembly, the second arm shaping assembly, and the third arm shaping assembly are respectively arranged at intervals along the circumferential direction of the fixed cylinder;
  • the first arm shaping assembly, the second arm shaping assembly, and the third arm shaping assembly all comprise an arm clamping assembly for supporting a blade rib arm and an arc limiting assembly for limiting an arc plate of the blade rib.
  • the leaf rib as a whole includes three arms and three leaf rib circular arc plates, a single arm includes two arms connected to each other, an angle is set between the two arms, the arms of the three leaf ribs are fitted in pairs and connected to a leaf rib circular arc plate respectively, the leaf rib circular arc plate and the arm are separate structures, so the installation accuracy of the arm and the leaf rib circular arc plate affects the forming accuracy of the leaf rib as a whole.
  • the fixed cylinder is installed on the installation platform, the limit cylinder is connected to the fixed cylinder, the leaf rib circular arc plate is set at the corresponding position, the tops of the three leaf ribs are respectively connected to the limit cylinder to form a circular ring, and the bottoms of the arms are respectively connected to the corresponding leaf rib circular arc plates.
  • the circular arc limit assemblies are respectively fitted with the corresponding leaf rib circular arc plates, and the arm clamping assemblies clamp the corresponding arms.
  • the various parts of the leaf rib as a whole are in a relatively fixed state, and then the limit cylinder is disassembled to install the fixed circular ring, and finally the leaf rib as a whole and the tooling are subjected to meteorological deposition.
  • This shaping tooling can not only assemble the support arms and arc plates of the blade ribs, facilitating installation, but also improve the assembly accuracy of the blade ribs. Since the assembled blade ribs are still subject to subsequent vapor deposition treatment, the various components will still be deformed during the vapor deposition process.
  • This tooling can be used for vapor deposition together with the blade ribs as a whole, effectively preventing the components from being deformed during the chemical vapor deposition process, thereby increasing the qualified rate of finished components and further improving the forming accuracy of the blade ribs.
  • the blade ribs need to be fine-machined after vapor deposition. This tooling also plays a role in clamping, positioning and supporting in the fine-machining of the blade ribs, thereby reducing machining damage and improving machining accuracy.
  • the mounting platform is provided with a slot for clamping the arc limit assembly
  • the arc limit assembly includes a mounting block and an arc limit block arranged on the top of the mounting block, the mounting block is arranged in the slot; the arc concave surface of the arc limit block faces the support arm clamping assembly.
  • the push installation block is installed in the slot, and the arc limit block abuts against the side wall of the leaf rib arc plate, thereby limiting the leaf rib arc plate, and then the corresponding support arm is installed. Since there is an angle between the support arms of a single leaf rib, when the support arms of each leaf rib are fitted and connected to the corresponding arc plate, the position of the arc plate needs to be determined first.
  • This technical solution limits the leaf rib arc plate by setting an arc limit block to ensure the connection accuracy between the support arm and the leaf rib arc plate.
  • a support arm tail limit assembly is provided on the top of the mounting block, and the support arm tail limit assembly includes a support platform and an support arm limit block arranged on the top of the support platform, and there is a gap between the end of the support arm limit block close to the support arm clamping assembly and the arc concave surface of the arc limit block and an arm limit groove is provided, and the support platform, the mounting block and the mounting platform are connected by a first fastener.
  • a first cushion block is provided on the side wall of the support arm limiting groove.
  • the beneficial effects of adopting the above technical solution are as follows: after the support arm is connected to the blade rib arc plate, the blade rib arc plate is limited by the arc limit assembly, and the support arm is located in the support arm limit groove. At this time, the support platform is installed on the mounting block, and the first pad fills the gap between the support arm limit groove and the support arm.
  • This technical solution takes into account that the support arm and the blade rib arc plate are split structures. After the support arm is connected to the blade rib arc plate, the connection between the support arm and the blade rib arc plate is limited by the support arm tail limit assembly, so as to avoid displacement after the support arm is connected to the blade rib arc plate, and also avoid deformation of the connection during subsequent vapor deposition.
  • the arm clamping assembly includes a first right-angle frame and a second right-angle frame that are symmetrically and spaced apart, the bottoms of the first right-angle frame and the second right-angle frame are respectively connected to the mounting platform through second fasteners, and the tops of the first right-angle frame and the second right-angle frame are respectively provided with third fasteners for connecting the leaf rib arms.
  • the side walls corresponding to the first right-angle frame and the second right-angle frame are respectively provided with second cushion blocks.
  • the first right angle bracket and the second right angle bracket are respectively set
  • the third fastener is connected to the support arm on both sides of the support arm, so as to limit and fix the middle part of the support arm. Since the support arm has a certain length and is inclined, the support arm clamping assembly can provide a certain support force to the middle part of the support arm to prevent the two ends of the workpiece from deviating, and ensure the assembly accuracy between the leaf ribs and between the support arm and the leaf rib arc plate.
  • a fixing assembly for fixing the blade rib arc plate is arranged between the support arm clamping assembly and the arc limit assembly, and the fixing assembly includes a first pressure plate and a second pressure plate respectively used to fix the two ends of the blade rib arc plate, and the first pressure plate and the second pressure plate are respectively connected to the mounting platform through a fourth fastener.
  • the beneficial effects of adopting the above technical solution are as follows: after the arc limit assembly is fitted with the blade rib arc plate, the first pressure plate and the second pressure plate are respectively installed at both ends of the blade rib arc plate to limit the two ends of the blade rib arc plate.
  • the position of the blade rib arc plate is adjusted by loosening the fourth fastener.
  • the blade rib arc plate has an arc surface.
  • the arc limit assembly and the support arm clamping assembly of the technical solution are used in combination, which can not only limit the blade rib arc plate, but also the position of the blade rib arc plate is not easy to be displaced after the installation position of the blade rib arc plate is determined.
  • the mounting platform is embedded with an indicating limit block for indicating the placement position of the blade rib arc plate.
  • An assembly method for an assembly and profiling tool for satellite lens barrel blade ribs comprising the following steps:
  • step S1 also includes installing angle materials on the top of each leaf rib support arm, and installing back plates for clamping the corresponding support arms on the side of the leaf rib arc plate away from the arc limit assembly.
  • the present invention can not only assemble the support arms and the arc plates of the blade ribs, facilitating installation, but also improves the assembly accuracy of the blade ribs. Since the assembled blade ribs are still subject to subsequent vapor deposition treatment, deformation of the components will occur during the vapor deposition process.
  • the present tooling can be used for vapor deposition together with the blade ribs as a whole, effectively preventing deformation of the components during the chemical vapor deposition process, thereby improving the qualified rate of finished components and further improving the forming accuracy of the blade ribs.
  • the blade ribs need to be fine-machined after vapor deposition.
  • the present tooling also plays a role in clamping, positioning and supporting in the fine-machining link of the blade ribs, thereby reducing machining damage and improving machining accuracy.
  • the present invention takes into account that the support arm and the blade rib arc plate are split structures.
  • the connection between the support arm and the blade rib arc plate is limited by the support arm tail limiting assembly to avoid displacement after the support arm and the blade rib arc plate are connected, and to avoid deformation of the connection during subsequent vapor deposition.
  • the circular arc limiting assembly and the support arm clamping assembly of the present invention are used in combination, which can not only limit the position of the blade rib circular arc plate, but also prevent the position of the blade rib circular arc plate from being easily displaced after the installation position of the blade rib circular arc plate is determined.
  • FIG1 is a schematic structural diagram of an assembly and profiling tool for satellite lens barrel ribs according to the present invention
  • FIG2 is a schematic structural diagram of an installation platform of the present invention.
  • FIG3 is a schematic structural diagram of an arc limiting assembly of the present invention.
  • FIG4 is a schematic structural diagram of the support arm clamping assembly of the present invention.
  • FIG5 is a schematic diagram of the structure of a blade rib of the present invention.
  • FIG6 is a schematic structural diagram of an assembly and profiling tool for satellite lens barrel ribs with ribs installed
  • the ribs in the present invention include three arms and three rib arc plates 602.
  • a single arm includes two rib arms 601. The angle between the two rib arms 601 is 120°. The tops of the two rib arms 601 are connected by an arc segment, and the bottoms of the two rib arms 601 are tilted downward. The three ribs are bonded together. Each rib arm 601 is processed with a corresponding pin hole. The bonded rib arms 601 are connected by pins. The bottoms of the bonded rib arms 601 are connected with a rib arc plate 602. The two sides of the rib arc plate 602 are arc surfaces. The two ends of the rib arc plate 602 are tilted upward at a certain angle.
  • the arc segment at the top of the rib support arm 601 forms a ring, and a fixing ring 604 is arranged inside the ring.
  • An angle piece 603 is fitted to each rib support arm 601 and the arc segment respectively.
  • the angle piece 603 is processed with a pin hole and is connected to the fixing ring 604 and the corresponding arc segment through a pin.
  • an assembly and profiling tool for satellite lens barrel blade ribs includes a mounting platform 1 and a positioning sleeve 2, a first arm shaping component 31, a second arm shaping component 32, and a third arm shaping component 33 arranged on the mounting platform 1;
  • the positioning sleeve 2 includes a fixed cylinder 201 and a limiting cylinder 202 arranged on the top of the fixed cylinder 201, and the limiting cylinder 202 is connected to the fixed cylinder 201 by a pin.
  • Removable connection; the first arm shaping component 31, the second arm shaping component 32, and the third arm shaping component 33 are arranged at intervals along the circumferential direction of the fixed cylinder 201.
  • the first arm shaping component 31, the second arm shaping component 32, and the third arm shaping component 33 respectively limit the fitted leaf rib arm 601 and the corresponding leaf rib arc plate 602.
  • This shaping tool can not only assemble the leaf rib arm 601 and the leaf rib arc plate 602 of the leaf rib, but also improve the assembly accuracy of the leaf rib while facilitating installation. Since the assembled leaf rib needs to undergo subsequent vapor deposition treatment, the various components will still be deformed during the vapor deposition process.
  • This tool can be used for vapor deposition together with the leaf rib as a whole, effectively preventing the components from being deformed during the chemical vapor deposition process, improving the qualified rate of the finished components, and further improving the forming accuracy of the leaf rib; secondly, the leaf rib needs to be fine-machined after vapor deposition.
  • This tool also plays the role of clamping, positioning and supporting in the fine machining of the leaf rib, reducing machining damage and improving machining accuracy.
  • the installation platform 1 is embedded with an indicating limit block 102 for indicating the placement position of the blade rib arc plate 602.
  • the indicating limit block 102 is a block processed with an arc.
  • the indicating limit block 102 is embedded in the installation platform 1.
  • the two ends of the indicating limit block 102 are connected to the installation platform 1 through pins.
  • the present invention is provided with three blade rib arc plates 602, three limit blocks are provided in this embodiment, and the angles between the limit blocks match the angles between the blade rib arc plates 602.
  • the installation platform 1 is provided with a card slot 102, and the number of the card slots 102 is 3.
  • One end of the card slot 102 extends to the side wall of the installation platform 1, and the other end of the card slot 102 extends to the limit block.
  • the three card slots 102 are provided in a one-to-one correspondence with the three limit blocks.
  • the first arm shaping assembly 31 , the second arm shaping assembly 32 and the third arm shaping assembly 33 all include an arm clamping assembly 301 and an arc limiting assembly 302 for limiting the blade rib arc plate 602 .
  • the arc limiting assembly 302 is arranged along the axial extension direction of the blade rib arm 601 .
  • the arc limit assembly 302 includes a mounting block 321 and an arc limit block 322 disposed on the top of the mounting block 321.
  • the mounting block 321 is disposed in the slot 102.
  • the mounting block 321 and the arc limit block 322 are an integral structure.
  • the inner side of the arc limit block 322 is processed with an arc surface, which matches the shape of the leaf rib arc plate 602.
  • the arc limit block 322 abuts against the side wall of the leaf rib arc plate 602, thereby limiting the leaf rib arc plate 602.
  • the corresponding rib support arm 601 is then installed.
  • the present invention sets an arc stopper 322 to limit the position of the rib arc plate 602, thereby ensuring the connection accuracy between the rib support arm 601 and the rib arc plate 602.
  • a fixing assembly 5 for fixing the blade rib arc plate 602 is provided between the support arm clamping assembly 301 and the arc limiting assembly 302.
  • the fixing assembly 5 includes a first pressing plate 501 and a second pressing plate 502 respectively provided at both ends of the blade rib arc plate 602.
  • the first pressing plate 501 and the second pressing plate 502 are respectively connected to the mounting platform 1 through a fourth fastener 503.
  • the first pressing plate 501 and the second pressing plate 502 are respectively installed at both ends of the blade rib arc plate 602 to limit the two ends of the blade rib arc plate 602.
  • the blade rib arc plate 602 has an arc surface.
  • the arc limiting component 302 and the support arm clamping component 301 of the present invention are used in combination, which can not only limit the blade rib arc plate 602, but also prevent the position of the blade rib arc plate 602 from being easily displaced after the installation position of the blade rib arc plate 602 is determined.
  • the limiting assembly process of the leaf rib arc plate 602 1) Place the leaf rib arc plate 602 in the corresponding limiting block, and after the arc segment of each leaf rib top is fitted with the fixed cylinder 201, the fitted leaf rib support arm 601 is connected to the corresponding leaf rib arc plate 602, and the leaf rib support arm 601 is connected with a pin and preliminarily fixed with a bow clamp; 2) The movable installation block 321 moves in the slot 102 until the arc surface of the arc limiting block 322 is fitted with the arc surface of the leaf rib arc plate 602, and the first pressure plate 501 and the second pressure plate 502 are respectively installed at both ends of the leaf rib arc plate 602 and the fourth fastener 503 is tightened; 3) When the installation of the leaf rib support arm 601 does not meet the tolerance requirements, the fourth fastener 503 is screwed in, and the position of the leaf rib arc plate 602 and the leaf rib support arm 601 is adjusted.
  • the arm clamping assembly 301 includes a first right angle bracket 311 and a second right angle bracket 312 symmetrically arranged on both sides of the leaf rib arm 601.
  • the bottoms of the first right angle bracket 311 and the second right angle bracket 312 are connected to the mounting platform 1 via second fasteners 313, and the tops of the first right angle bracket 311 and the second right angle bracket 312 are connected to the corresponding leaf rib arm 601 via third fasteners 314.
  • a second cushion block 315 is respectively arranged between the right angle frame 311 and the second right angle frame 312 and the rib support arm 601.
  • the second cushion block 315 is processed with a pin hole, and the pin hole matches the pin of the rib support arm 601 after connection and bonding.
  • the first right angle frame 311 and the second right angle frame 312 are respectively arranged on both sides of the rib support arm 601 and connected to the rib support arm 601 by a third fastener 314, so as to limit and fix the middle part of the rib support arm 601. Since the rib support arm 601 has a certain length and is inclined, the arm clamping assembly 301 can provide a certain support force to the middle part of the rib support arm 601, prevent the two ends of the workpiece from being offset, and ensure the assembly accuracy between the ribs and between the rib support arm 601 and the rib circular arc plate 602.
  • a support arm tail limit assembly 4 is provided on the top of the mounting block 321.
  • the support arm tail limit assembly 4 includes a support platform 401 and an arm limit block 402 arranged on the top side wall of the support platform 401 and facing the leaf rib support arm 601.
  • the support platform 401 is L-shaped, and the bottom of the support platform 401 is in contact with the mounting block 321.
  • the inner side of the support platform 401 is in contact with the arc limit block 322.
  • the arm limit block 402 has a certain length.
  • a clearance groove for avoiding the arc limit block 322 is provided at the bottom of the arm limit block 402.
  • a first cushion block 404 is respectively arranged between the arm limiting groove 421 and the side wall of the tail of the rib arm 601.
  • the support platform 401 is installed on the mounting block 321, and the first cushion block 404 fills the gap between the arm limiting groove 421 and the rib arm 601.
  • the present invention takes into account that the rib arm 601 and the rib circular arc plate 602 are split structures. When the rib arm 601 is connected to the rib circular arc plate 602, the connection between the rib arm 601 and the rib circular arc plate 602 is limited by the arm tail limiting assembly 4, so as to avoid displacement after the rib arm 601 is connected to the rib circular arc plate 602, and also to avoid deformation of the connection during subsequent vapor deposition. It is worth noting that, in this embodiment, the first fastener 403, the second fastener 313, the third fastener 314 and the fourth fastener 503 are all bolts.
  • the limiting assembly process of the leaf rib support arm 601 1) After the position of the leaf rib arc plate 602 is fixed, the angle material 603 is installed on the arc section at the top of the leaf rib support arm 601; 2) The installation positions of the first right-angle bracket 311 and the second right-angle bracket 312 are respectively determined on both sides of the leaf rib support arm 601 after bonding.
  • the second cushion block 315 is installed on the inner side of the first right-angle bracket 311 and the second right-angle bracket 312, and the second fastener 313 and the third fastener 314 are tightened; 4)
  • the support arm limiting groove 421 is aligned with the leaf rib support arm 601 after bonding, so that the leaf rib support arm 601 is located in the middle position of the support arm limiting groove 421, and the first cushion block 404 is placed on both sides of the leaf rib support arm 601 to prevent the leaf rib support arm 601 from offsetting in the support arm limiting groove 421.
  • An assembly method for an assembly and profiling tool for satellite lens barrel blade ribs characterized in that the method comprises the following steps:
  • the above step S1 also includes installing an angle bar 603 on the top of the rib support arm 601 of each rib, and installing a back plate 605 for clamping the corresponding rib support arm 601 on the side of the rib arc plate 602 away from the arc limit assembly 302.
  • the tooling of the present invention can be used for assembling blade ribs, and after the blade ribs are assembled as a whole, it can also be used for profiling and finishing:
  • Method of using the tool as a profiling tool The fixed blade ribs are subjected to chemical vapor deposition together with the tool.
  • the tool can ensure that the blade ribs will not be deformed due to high temperature during chemical vapor deposition.

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  • Mechanical Engineering (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

一种用于卫星镜筒叶肋的组装校型工装及装配方法，其包括安装平台（1）以及设置在安装平台（1）上的定位套筒（2）、第一支臂定型组件（31）、第二支臂定型组件（32）、第三支臂定型组件（33）；定位套筒（2）包括固定筒体（201）和设置在固定筒体（201）顶部的限位筒体（202），限位筒体（202）与固定筒体（201）可拆卸连接；第一支臂定型组件（31）、第二支臂定型组件（32）、第三支臂定型组件（33）分别沿固定筒体（201）的圆周方向间隔设置。不仅可以将叶肋的支臂和叶肋圆弧板进行组装，还可以与叶肋整体一起进行气相沉积，有效防止部件在化学气相沉积过程中发生变形。

Description

一种用于卫星镜筒叶肋的组装校型工装及装配方法 技术领域
本发明涉及定型工装技术领域，具体涉及一种用于卫星镜筒叶肋的组装校型工装及装配方法。
背景技术
本发明对于背景技术的描述属于与本发明相关的相关技术，仅仅是用于说明和便于理解本发明的发明内容，不应理解为申请人明确认为或推定申请人认为是本发明在首次提出申请的申请日的现有技术。
C/SiC复合材料具有密度低、高强度、耐高温、耐磨损、耐腐蚀、韧性高、抗氧化等优点。C/SiC复合材料零件的成形方式为：将碳纤维布用碳纤维束缝制在模具上，采用化学气相沉积(CVI)的方法对碳纤维布进行不断增密，从而使碳纤维布不断硬化，逐渐形成所需要的零件形状，因此C/SiC复合材料一般零件多为薄壁件。
卫星C/SiC镜筒部件中的叶肋包括支臂和叶肋圆弧板，支臂和叶肋圆弧板也即采用化学气相沉积(CVI)的方法对碳纤维布进行不断增密成型的，叶肋支臂和叶肋圆弧板组装成叶肋整体后需要再次进行气相沉积。考虑到叶肋支臂和叶肋圆弧板均为薄壁件，在压力的作用下易产生变形，零件壁厚较薄在切削力的作用下，易产生振动，因此将叶肋组装在一起时，需要在组装过程中施加一定的力度来确保组装精度，但是在现有的组装和成型过程中缺少工装来进行辅助校型，从而影响叶肋组装和后续成型的精度。
发明内容
本发明的目的在于提供一种用于卫星镜筒叶肋的组装校型工装及装配方法，以解决现有C/SiC复合材料薄壁件缺少工装来进行辅助校型，从而影 响组装精度的问题。
本发明解决上述技术问题的技术方案如下：
一种用于卫星镜筒叶肋的组装校型工装，其包括安装平台以及设置在安装平台上的定位套筒、第一支臂定型组件、第二支臂定型组件、第三支臂定型组件；定位套筒包括固定筒体和设置在固定筒体顶部的限位筒体，限位筒体与固定筒体可拆卸连接；第一支臂定型组件、第二支臂定型组件、第三支臂定型组件分别沿固定筒体的圆周方向间隔设置；第一支臂定型组件、第二支臂定型组件、第三支臂定型组件均包括用于支撑叶肋支臂的支臂夹持组件和用于限位叶肋圆弧板的圆弧限位组件。
采用上述技术方案的有益效果为：叶肋整体包括三个支臂和三个叶肋圆弧板，单个支臂包括相互连接的两个支臂，两个支臂之间设置有夹角，三个叶肋的支臂两两贴合并分别与一个叶肋圆弧板连接，叶肋圆弧板与支臂为分体结构，因此将支臂与叶肋圆弧板的安装精度影响着叶肋整体的成型精度。将固定筒体安装在安装平台上，限位筒体与固定筒体连接，将叶肋圆弧板设置在相对应的位置，三个叶肋的顶部分别与限位筒体连接，并形成圆环，支臂的底部分别与相对应的叶肋圆弧板连接。圆弧限位组件分别与相对应的叶肋圆弧板贴合，支臂夹持组件夹持住相对应的支臂，此时叶肋整体的各个部分处于相对固定的状态，再将限位筒体拆卸下来安装固定圆环，最后将叶肋整体与工装一起进行气象沉积。
本定型工装不仅可以将叶肋的支臂和叶肋圆弧板进行组装，方便安装的同时还提高了叶肋的组装精度，由于组装后的叶肋还要进行后续的气相沉积处理，气象沉积过程各个部件还会存在部件的变形，而本工装可以与叶肋整体一起进行气象沉积，有效防止部件在化学气相沉积过程中发生变形，提高部件成品合格率，进一步提高叶肋的成型精度；其次，叶肋在气相沉积后还需要再进行精加工，本工装在叶肋的精加工环节，还起到装夹、定位和支撑的作用，减少加工损伤，提高加工精度。
进一步地，安装平台设置有用于卡住圆弧限位组件的卡槽，圆弧限位组件包括安装块和设置在安装块顶部的圆弧限位块，安装块设置在卡槽中；圆弧限位块的圆弧凹面朝向支臂夹持组件。
采用上述技术方案的有益效果为：推动安装块安装在卡槽中，圆弧限位块抵住叶肋圆弧板的侧壁，从而对叶肋圆弧板进行限位，此时再安装相对应的支臂。由于单个叶肋的支臂之间存在夹角，故各个叶肋的支臂贴合后在与相对应的弧形板连接时，需要先确定弧形板的位置，本技术方案通过设置圆弧限位块对叶肋圆弧板进行限位，确保支臂与叶肋圆弧板之间的连接精度。
进一步地，安装块的顶部设置有支臂尾部限位组件，支臂尾部限位组件包括支撑台和设置在支撑台顶部的支臂限位块，支臂限位块靠近支臂夹持组件的一端与圆弧限位块的圆弧凹面之间具有间隙并且设置有支臂限位槽，支撑台、安装块和安装平台通过第一紧固件连接。
进一步地，支臂限位槽的侧壁设置有第一垫块。
采用上述技术方案的有益效果为：当支臂与叶肋圆弧板连接后，叶肋圆弧板通过圆弧限位组件进行限位，支臂位于支臂限位槽中，此时再将支撑台安装在安装块上，第一垫块填充支臂限位槽与支臂之间的空隙。本技术方案考虑到支臂与叶肋圆弧板为分体结构，当支臂与叶肋圆弧板连接后，通过支臂尾部限位组件对支臂和叶肋圆弧板的连接处进行限位，避免支臂与叶肋圆弧板连接后再产生位移，还能避免后续气相沉积时连接处从产生变形。
进一步地，支臂夹持组件包括对称并间隔设置的第一直角架和第二直角架，第一直角架和第二直角架的底部分别通过第二紧固件与安装平台的连接，第一直角架和第二直角架的顶部分别设置有用于连接叶肋支臂的第三紧固件。
进一步地，第一直角架和第二直角架相对应的侧壁分别设置有第二垫块。
采用上述技术方案的有益效果为：将第一直角架和第二直角架分别设置 在支臂的两侧并用第三紧固件与支臂连接，从而对支臂的中部进行限位和固定。由于支臂具有一定的长度并且倾斜设置，设置支臂夹持组件可以对支臂的中部提供一定的支撑力，防止工件的两端进行偏移，确保各叶肋之间、支臂与叶肋圆弧板之间的组装精度。
进一步地，支臂夹持组件与圆弧限位组件之间设置有用于固定叶肋圆弧板的固定组件，固定组件包括分别用于固定叶肋圆弧板两端的第一压板和第二压板，第一压板和第二压板分别通过第四紧固件与安装平台连接。
采用上述技术方案的有益效果为：在圆弧限位组件与叶肋圆弧板贴合后，在叶肋圆弧板的两端分别安装第一压板和第二压板，对叶肋圆弧板的两端进行限位，当需要调节支臂和叶肋圆弧板的安装位置时，拧松第四紧固件即调整叶肋圆弧板的位置。叶肋圆弧板存在弧面，本技术方案的圆弧限位组件和支臂夹持组件相配合使用，不仅可以对叶肋圆弧板进行限位，确定叶肋圆弧板的安装位置后，叶肋圆弧板的位置也不易发生位移。
进一步地，安装平台嵌设有用于指示叶肋圆弧板放置位置的指示限位块。
一种用于卫星镜筒叶肋的组装校型工装的装配方法，该方法包括以下步骤：
S1：将叶肋圆弧板放置在相应的位置后，单个叶肋支臂顶部与限位筒体贴合，打磨支臂顶部与限位筒体的贴合处，叶肋支臂尾部与相对应的叶肋圆弧板连接；
S2：依次将其余两个叶肋进行安装，使得三个叶肋支臂顶部形成圆环，三个叶肋的支臂两两贴合；
S3：将圆弧限位组件安装在安装平台上，圆弧限位组件的内侧与叶肋圆弧板的侧壁贴合；
S4：通过三坐标检测单个叶肋支臂之间的夹角，确保夹角满足公差要求；
S5：在固定筒体和圆弧限位组件之间安装支臂夹持组件；
S6：将限位筒体从固定筒体上拆卸下来，在圆环内安装固定环，通过销钉依次连接固定环和相对应的叶肋支臂；
S7：将组装好的叶肋整体同工装进行化学气相沉积。
进一步地，步骤S1还包括在各个叶肋支臂顶部安装角材，在叶肋圆弧板远离圆弧限位组件的一侧分别安装用于卡住相对应的支臂的背板。
本发明具有以下有益效果：
本发明不仅可以将叶肋的支臂和叶肋圆弧板进行组装，方便安装的同时还提高了叶肋的组装精度，由于组装后的叶肋还要进行后续的气相沉积处理，气象沉积过程各个部件还会存在部件的变形，而本工装可以与叶肋整体一起进行气象沉积，有效防止部件在化学气相沉积过程中发生变形，提高部件成品合格率，进一步提高叶肋的成型精度；其次，叶肋在气相沉积后还需要再进行精加工，本工装在叶肋的精加工环节，还起到装夹、定位和支撑的作用，减少加工损伤，提高加工精度。
本发明考虑到支臂与叶肋圆弧板为分体结构，当支臂与叶肋圆弧板连接后，通过支臂尾部限位组件对支臂和叶肋圆弧板的连接处进行限位，避免支臂与叶肋圆弧板连接后再产生位移，还能避免后续气相沉积时连接处从产生变形。
本发明的圆弧限位组件和支臂夹持组件相配合使用，不仅可以对叶肋圆弧板进行限位，确定叶肋圆弧板的安装位置后，叶肋圆弧板的位置也不易发生位移。
附图说明
图1为本发明用于卫星镜筒叶肋的组装校型工装的结构示意图；
图2为本发明的安装平台的结构示意图；
图3为本发明的圆弧限位组件的结构示意图；
图4为本发明的支臂夹持组件的结构示意图；
图5为本发明的叶肋的结构示意图；
图6为安装有叶肋的用于卫星镜筒叶肋的组装校型工装的结构示意图；
图中：1-安装平台；101-卡槽；102-指示限位块；2-定位套筒；201-固定筒体；202-限位筒体；31-第一支臂定型组件；32-第二支臂定型组件；33-第三支臂定型组件；301-支臂夹持组件；311-第一直角架；312-第二直角架；313-第二紧固件；314-第三紧固件；315-第二垫块；302-圆弧限位组件；321-安装块；322-圆弧限位块；4-支臂尾部限位组件；401-支撑台；402-支臂限位块；421-支臂限位槽；403-第一紧固件；404-第一垫块；5-固定组件；501-第一压板；502-第二压板；503-第四紧固件；601-支臂；602-叶肋圆弧板；603-角材；604-固定环；605-背板。
具体实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
请参照图5，本发明中的叶肋整体包括三个支臂和三个叶肋圆弧板602，单个支臂包括两个叶肋支臂601，两个叶肋支臂601之间的夹角为120°，两个叶肋支臂601的顶端通过圆弧段连接，两个叶肋支臂601的底端向下倾斜设置。三个叶肋相互贴合在一起，每个叶肋支臂601分别加工有相对应的销钉孔，贴合后的叶肋支臂601之间通过销钉连接，贴合后的叶肋支臂601底端分别连接有一个叶肋圆弧板602，叶肋圆弧板602的两侧分别为弧面，叶肋圆弧板602的两端向上翘起一定的角度。三个叶肋贴合后，叶肋支臂601顶端的圆弧段形成一个圆环，圆环内设置有一个固定环604，并且在各叶肋支臂601与圆弧段分别贴合有角材603，角材603加工有销钉孔并通过销钉与固定环604和相对应的圆弧段连接。
请参照图1，一种用于卫星镜筒叶肋的组装校型工装，其包括安装平台1以及设置在安装平台1上的定位套筒2、第一支臂定型组件31、第二支臂定型组件32、第三支臂定型组件33；定位套筒2包括固定筒体201和设置在固定筒体201顶部的限位筒体202，限位筒体202通过销钉与固定筒体201 可拆卸连接；第一支臂定型组件31、第二支臂定型组件32、第三支臂定型组件33分别沿固定筒体201的圆周方向间隔设置。第一支臂定型组件31、第二支臂定型组件32、第三支臂定型组件33分别对贴合后的叶肋支臂601和相对应的叶肋圆弧板602进行限位。本定型工装不仅可以将叶肋的叶肋支臂601和叶肋圆弧板602进行组装，方便安装的同时还提高了叶肋的组装精度，由于组装后的叶肋还要进行后续的气相沉积处理，气象沉积过程各个部件还会存在部件的变形，而本工装可以与叶肋整体一起进行气象沉积，有效防止部件在化学气相沉积过程中发生变形，提高部件成品合格率，进一步提高叶肋的成型精度；其次，叶肋在气相沉积后还需要再进行精加工，本工装在叶肋的精加工环节，还起到装夹、定位和支撑的作用，减少加工损伤，提高加工精度。
请参照图2，安装平台1嵌设有用于指示叶肋圆弧板602放置位置的指示限位块102，指示限位块102为加工有圆弧的块体，指示限位块102嵌设在安装平台1中，指示限位块102的两端分别通过销钉与安装平台1连接。考虑到本发明设置有三个叶肋圆弧板602，在本实施例中设置有3个限位块，限位块之间的夹角同叶肋圆弧板602之间的夹角相匹配。安装平台1设置有卡槽102，卡槽102的数量为3,卡槽102与的一端延伸至安装平台1的侧壁，卡槽102的另一端延伸至限位块，3个卡槽102与3个限位块一一对应设置。
第一支臂定型组件31、第二支臂定型组件32、第三支臂定型组件33均包括支臂夹持组件301和用于限位叶肋圆弧板602的圆弧限位组件302，圆弧限位组件302沿叶肋叶肋支臂601的轴向延伸方向设置。
请参照1和图3，圆弧限位组件302包括安装块321和设置在安装块321顶部的圆弧限位块322，安装块321设置在卡槽102中，在本实施例中，安装块321与圆弧限位块322为一体结构，圆弧限位块322的内侧加工有弧面，该弧面与叶肋圆弧板602的外形相匹配。推动安装块321安装在卡槽102中，圆弧限位块322抵住叶肋圆弧板602的侧壁，从而对叶肋圆弧板602进行限 位，此时再安装相对应的叶肋支臂601。由于单个叶肋的叶肋支臂601之间存在夹角，故各个叶肋的叶肋支臂601贴合后在与相对应的弧形板连接时，需要先确定弧形板的位置，本发明通过设置圆弧限位块322对叶肋圆弧板602进行限位，确保叶肋支臂601与叶肋圆弧板602之间的连接精度。
支臂夹持组件301与圆弧限位组件302之间设置有用于固定叶肋圆弧板602的固定组件5，固定组件5包括分别设置在叶肋圆弧板602两端的第一压板501和第二压板502，第一压板501和第二压板502分别通过第四紧固件503与安装平台1连接。在圆弧限位组件302与叶肋圆弧板602贴合后，在叶肋圆弧板602的两端分别安装第一压板501和第二压板502，对叶肋圆弧板602的两端进行限位，当需要调节叶肋支臂601和叶肋圆弧板602的安装位置时，拧松第四紧固件503即调整叶肋圆弧板602的位置。叶肋圆弧板602存在弧面，本发明的圆弧限位组件302和支臂夹持组件301相配合使用，不仅可以对叶肋圆弧板602进行限位，确定叶肋圆弧板602的安装位置后，叶肋圆弧板602的位置也不易发生位移。
叶肋圆弧板602的限位组装过程：1)将叶肋圆弧板602放置在相对应的限位块中，各个叶肋顶部的圆弧段与固定筒体201贴合后，贴合后的叶肋支臂601与相对应的叶肋圆弧板602连接叶肋支臂601之间用销钉连接并用弓形夹进行初步固定；2)移动安装块321在卡槽102中移动，直至圆弧限位块322的弧面与叶肋圆弧板602的弧面贴合，在叶肋圆弧板602的两端分别安装第一压板501和第二压板502并拧紧第四紧固件503；3)当叶肋支臂601的安装不满足公差要求时，拧送第四紧固件503，并调整叶肋圆弧板602和叶肋支臂601的位置。
请参照图4，支臂夹持组件301包括对称设置在叶肋支臂601两侧的第一直角架311和第二直角架312，第一直角架311和第二直角架312的底部分别通过第二紧固件313与安装平台1的连接，第一直角架311和第二直角架312的顶部分别通过第三紧固件314与相对应的叶肋支臂601连接。第一 直角架311和第二直角架312与叶肋支臂601之间分别设置有第二垫块315，第二垫块315加工有销钉孔，该销钉孔与连接贴合后的叶肋支臂601的销钉相匹配，此种设置是为了进行化学气相沉积时，气体可以销钉孔周边流动，使销钉得到有效沉积。将第一直角架311和第二直角架312分别设置在叶肋支臂601的两侧并用第三紧固件314与叶肋支臂601连接，从而对叶肋支臂601的中部进行限位和固定。由于叶肋支臂601具有一定的长度并且倾斜设置，设置支臂夹持组件301可以对叶肋支臂601的中部提供一定的支撑力，防止工件的两端进行偏移，确保各叶肋之间、叶肋支臂601与叶肋圆弧板602之间的组装精度。
请参照1和图3，安装块321的顶部设置有支臂尾部限位组件4，支臂尾部限位组件4包括支撑台401和设置在支撑台401的顶部侧壁并朝向叶肋支臂601的支臂限位块402，支撑台401呈L型，支撑台401的底部与安装块321贴合，支撑台401的内侧与圆弧限位块322贴合，支臂限位块402具有一定的长度，支臂限位块402的底部设置有用于避开圆弧限位块322的避空槽，支臂限位块402靠近支臂夹持组件301的一端与圆弧限位块322的圆弧面凹面之间具有间隙并且设置有支臂限位槽421，支撑台401、安装块321和安装平台1通过第一紧固件403依次连接。支臂限位槽421与叶肋支臂601尾部的侧壁之间分别设置有第一垫块404。当叶肋支臂601与叶肋圆弧板602连接后，叶肋圆弧板602通过圆弧限位组件302进行限位，叶肋支臂601位于支臂限位槽421中，此时再将支撑台401安装在安装块321上，第一垫块404填充支臂限位槽421与叶肋支臂601之间的空隙。本发明考虑到叶肋支臂601与叶肋圆弧板602为分体结构，当叶肋支臂601与叶肋圆弧板602连接后，通过支臂尾部限位组件4对叶肋支臂601和叶肋圆弧板602的连接处进行限位，避免叶肋支臂601与叶肋圆弧板602连接后再产生位移，还能避免后续气相沉积时连接处从产生变形。值得说明的是，在本实施例中，第一紧固件403、第二紧固件313、第三紧固件314和第四紧固件503均为螺栓。
叶肋支臂601的限位组装过程：1)当叶肋圆弧板602的位置固定后，在叶肋支臂601顶端的圆弧段安装角材603；2)在贴合后的叶肋支臂601两侧分别确定第一直角架311和第二直角架312的安装位置，由于贴合后的叶肋支臂601之间安装有销钉，若销钉过长则进行打磨；3)在第一直角架311和第二直角架312的内侧本别安装第二垫块315，并拧紧第二紧固件313和第三紧固件314；4)支臂限位槽421对准贴合后的叶肋支臂601，使叶肋支臂601位于支臂限位槽421的中间位置，在叶肋支臂601的两侧放置第一垫块404，避免叶肋支臂601在支臂限位槽421中发生偏移。
一种用于卫星镜筒叶肋的组装校型工装的装配方法，其特征在于，该方法包括以下步骤：
S1：将叶肋圆弧板602放置在相应的位置后，单个叶肋支臂顶部与限位筒体202贴合，打磨叶肋支臂601顶部与限位筒体202的贴合处，叶肋的叶肋支臂601尾部与相对应的叶肋圆弧板602连接；
S2：依次将其余两个叶肋进行安装，使得三个叶肋的叶肋支臂601顶部形成圆环，三个叶肋的叶肋支臂601两两贴合；
S3：将圆弧限位组件302安装在安装平台1上，圆弧限位组件302的内侧与叶肋圆弧板602的侧壁贴合；
S4：通过三坐标检测单个叶肋的叶肋支臂601之间的夹角，确保夹角满足公差要求；
S5：固定筒体201和圆弧限位组件302之间安装支臂夹持组件301；
S6：将限位筒体202从固定筒体201上拆卸下来，在圆环内安装固定环604，定位件依次连接固定环604和相对应的叶肋支臂601；
S7：将组装好的叶肋整体同工装进行化学气相沉积。
上述步骤S1还包括在各个叶肋的叶肋支臂601顶部安装角材603，在叶肋圆弧板602远离圆弧限位组件302的一侧分别安装用于卡住相对应的叶肋支臂601的背板605。
本发明工装既可以用于组装叶肋，在叶肋整体组装完成后，还可以用于校型和精加工：
(1)作为校型工装的使用方法：将固定好的叶肋整体同工装一起进行化学气相沉积，工装可以在进行化学气相沉积时，确保叶肋不会因为受到高温而变形。
(2)作为精加工工装的使用方法：将支臂限位块402和第一垫块404拆卸下来，利用安装平台1上的找正孔找正工装，数控精加工固定环604、各个叶肋和角材603顶部的余量。
以上仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种用于卫星镜筒叶肋的组装校型工装，其特征在于，包括：安装平台(1)以及设置在所述安装平台(1)上的定位套筒(2)、第一支臂定型组件(31)、第二支臂定型组件(32)、第三支臂定型组件(33)；
    所述定位套筒(2)包括固定筒体(201)和设置在所述固定筒体(201)顶部的限位筒体(202)，所述限位筒体(202)与所述固定筒体(201)可拆卸连接；
    所述第一支臂定型组件(31)、第二支臂定型组件(32)、第三支臂定型组件(33)分别沿所述固定筒体(201)的圆周方向间隔设置；所述第一支臂定型组件(31)、第二支臂定型组件(32)、第三支臂定型组件(33)均包括用于支撑叶肋支臂的支臂夹持组件(301)和用于限位叶肋圆弧板(602)的圆弧限位组件(302)。
  2. 根据权利要求1所述的用于卫星镜筒叶肋的组装校型工装，其特征在于，所述安装平台(1)设置有用于卡住所述圆弧限位组件(302)的卡槽(101)，所述圆弧限位组件(302)包括安装块(321)和设置在所述安装块(321)顶部的圆弧限位块(322)，所述安装块(321)设置在所述卡槽(101)中；所述圆弧限位块(322)的圆弧凹面朝向所述支臂夹持组件(301)。
  3. 根据权利要求2所述的用于卫星镜筒叶肋的组装校型工装，其特征在于，所述安装块(321)的顶部设置有支臂尾部限位组件(4)，所述支臂尾部限位组件(4)包括支撑台(401)和设置在所述支撑台(401)顶部的支臂限位块(402)，所述支臂限位块(402)靠近所述支臂夹持组件(301)的一端与所述圆弧限位块(322)的圆弧凹面之间具有间隙并且设置有支臂限位槽(421)，所述支撑台(401)、所述安装块(321)和所述安装平台(1)通过第一紧固件(403)连接。
  4. 根据权利要求3所述的用于卫星镜筒叶肋的组装校型工装，其特征 在于，所述支臂限位槽(421)的侧壁设置有第一垫块(404)。
  5. 根据权利要求1所述的用于卫星镜筒叶肋的组装校型工装，其特征在于，所述支臂夹持组件(301)包括对称并间隔设置的第一直角架(311)和第二直角架(312)，所述第一直角架(311)和所述第二直角架(312)的底部分别通过第二紧固件(313)与所述安装平台(1)的连接，所述第一直角架(311)和所述第二直角架(312)的顶部分别设置有用于连接叶肋支臂的第三紧固件(314)。
  6. 根据权利要求5所述的用于卫星镜筒叶肋的组装校型工装，其特征在于，所述第一直角架(311)和所述第二直角架(312)相对应的侧壁分别设置有第二垫块(315)。
  7. 根据权利要求1所述的用于卫星镜筒叶肋的组装校型工装，其特征在于，所述支臂夹持组件(301)与所述圆弧限位组件(302)之间设置有用于固定叶肋圆弧板(602)的固定组件(5)，所述固定组件(5)包括分别用于固定叶肋圆弧板(602)两端的第一压板(501)和第二压板(502)，所述第一压板(501)和第二压板(502)分别通过第四紧固件(503)与所述安装平台(1)连接。
  8. 根据权利要求1所述的用于卫星镜筒叶肋的组装校型工装，其特征在于，所述安装平台(1)嵌设有用于指示叶肋圆弧板(602)放置位置的指示限位块(102)。
  9. 一种用于卫星镜筒叶肋的组装校型工装的装配方法，其特征在于，该方法包括以下步骤：
    S1：将叶肋圆弧板(602)放置在相应的位置后，单个叶肋支臂顶部与所述限位筒体(202)贴合，打磨叶肋支臂(601)顶部与所述限位筒体(202)的贴合处，叶肋支臂(601)尾部与相对应的叶肋圆弧板(602)连接；
    S2：依次将其余两个叶肋进行安装，使得三个叶肋支臂(601)顶部形成圆环，三个叶肋的叶肋支臂(601)两两贴合；
    S3：将所述圆弧限位组件(302)安装在所述安装平台(1)上，所述圆弧限位组件(302)的内侧与叶肋圆弧板(602)的侧壁贴合；
    S4：通过三坐标检测单个叶肋支臂(601)之间的夹角，确保夹角满足公差要求；
    S5：在所述固定筒体(201)和所述圆弧限位组件(302)之间安装所述支臂夹持组件(301)；
    S6：将所述限位筒体(202)从所述固定筒体(201)上拆卸下来，在圆环内安装固定环(604)，通过销钉依次连接固定环(604)和相对应的叶肋支臂(601)；
    S7：将组装好的叶肋整体同工装进行化学气相沉积。
  10. 根据权利要求9所述用于卫星镜筒叶肋的组装校型工装的装配方法，其特征在于，步骤S1还包括在各个叶肋支臂(601)顶部安装角材(603)，在叶肋圆弧板(602)远离所述圆弧限位组件(302)的一侧分别安装用于卡住相对应的支臂(601)的背板(605)。
PCT/CN2023/117920 2022-10-21 2023-09-11 一种用于卫星镜筒叶肋的组装校型工装及装配方法 WO2024082867A1 (zh)

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